cm_initparams_v1 cm_initParams;
char *cm_sysName = 0;
-int cm_sysNameCount = 0;
+unsigned int cm_sysNameCount = 0;
char *cm_sysNameList[MAXNUMSYSNAMES];
DWORD TraceOption = 0;
int afsd_InitCM(char **reasonP)
{
- osi_uid_t debugID;
- long cacheBlocks;
- long cacheSize;
- long logChunkSize;
- long stats;
- long traceBufSize;
+ osi_uid_t debugID;
+ long cacheBlocks;
+ long cacheSize;
+ long logChunkSize;
+ long stats;
+ long traceBufSize;
long maxcpus;
- long ltt, ltto;
+ long ltt, ltto;
long rx_mtu, rx_nojumbo;
long virtualCache;
- char rootCellName[256];
- struct rx_service *serverp;
- static struct rx_securityClass *nullServerSecurityClassp;
- struct hostent *thp;
- char *msgBuf;
- char buf[200];
- HKEY parmKey;
- DWORD dummyLen;
+ char rootCellName[256];
+ struct rx_service *serverp;
+ static struct rx_securityClass *nullServerSecurityClassp;
+ struct hostent *thp;
+ char *msgBuf;
+ char buf[200];
+ HKEY parmKey;
+ DWORD dummyLen;
DWORD regType;
- long code;
- /*int freelanceEnabled;*/
- WSADATA WSAjunk;
+ long code;
+ /*int freelanceEnabled;*/
+ WSADATA WSAjunk;
lana_number_t lanaNum;
int i;
- WSAStartup(0x0101, &WSAjunk);
+ WSAStartup(0x0101, &WSAjunk);
afsd_initUpperCaseTable();
- /* setup osidebug server at RPC slot 1000 */
- osi_LongToUID(1000, &debugID);
- code = osi_InitDebug(&debugID);
- afsi_log("osi_InitDebug code %d", code);
+ /* setup osidebug server at RPC slot 1000 */
+ osi_LongToUID(1000, &debugID);
+ code = osi_InitDebug(&debugID);
+ afsi_log("osi_InitDebug code %d", code);
// osi_LockTypeSetDefault("stat"); /* comment this out for speed *
- if (code != 0) {
- *reasonP = "unknown error";
- return -1;
- }
+ if (code != 0) {
+ *reasonP = "unknown error";
+ return -1;
+ }
- /* who are we ? */
- gethostname(cm_HostName, sizeof(cm_HostName));
- afsi_log("gethostname %s", cm_HostName);
- thp = gethostbyname(cm_HostName);
- memcpy(&cm_HostAddr, thp->h_addr_list[0], 4);
-
- /* seed random number generator */
- srand(ntohl(cm_HostAddr));
-
- /* Look up configuration parameters in Registry */
- code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSConfigKeyName,
- 0, KEY_QUERY_VALUE, &parmKey);
- if (code != ERROR_SUCCESS) {
- FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
- | FORMAT_MESSAGE_ALLOCATE_BUFFER,
- NULL, code, 0, (LPTSTR)&msgBuf, 0, NULL);
- StringCbPrintfA(buf, sizeof(buf),
- "Failure in configuration while opening Registry: %s",
- msgBuf);
- osi_panic(buf, __FILE__, __LINE__);
- }
+ /* who are we ? */
+ gethostname(cm_HostName, sizeof(cm_HostName));
+ afsi_log("gethostname %s", cm_HostName);
+ thp = gethostbyname(cm_HostName);
+ memcpy(&cm_HostAddr, thp->h_addr_list[0], 4);
+
+ /* seed random number generator */
+ srand(ntohl(cm_HostAddr));
+
+ /* Look up configuration parameters in Registry */
+ code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSConfigKeyName,
+ 0, KEY_QUERY_VALUE, &parmKey);
+ if (code != ERROR_SUCCESS) {
+ FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM
+ | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+ NULL, code, 0, (LPTSTR)&msgBuf, 0, NULL);
+ StringCbPrintfA(buf, sizeof(buf),
+ "Failure in configuration while opening Registry: %s",
+ msgBuf);
+ osi_panic(buf, __FILE__, __LINE__);
+ }
dummyLen = sizeof(maxcpus);
- code = RegQueryValueEx(parmKey, "MaxCPUs", NULL, NULL,
- (BYTE *) &maxcpus, &dummyLen);
- if (code == ERROR_SUCCESS) {
+ code = RegQueryValueEx(parmKey, "MaxCPUs", NULL, NULL,
+ (BYTE *) &maxcpus, &dummyLen);
+ if (code == ERROR_SUCCESS) {
HANDLE hProcess;
DWORD_PTR processAffinityMask, systemAffinityMask;
}
}
- dummyLen = sizeof(TraceOption);
- code = RegQueryValueEx(parmKey, "TraceOption", NULL, NULL,
- (BYTE *) &TraceOption, &dummyLen);
+ dummyLen = sizeof(TraceOption);
+ code = RegQueryValueEx(parmKey, "TraceOption", NULL, NULL,
+ (BYTE *) &TraceOption, &dummyLen);
afsi_log("Event Log Tracing = %lX", TraceOption);
- dummyLen = sizeof(traceBufSize);
- code = RegQueryValueEx(parmKey, "TraceBufferSize", NULL, NULL,
- (BYTE *) &traceBufSize, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Trace Buffer size %d", traceBufSize);
- else {
- traceBufSize = CM_CONFIGDEFAULT_TRACEBUFSIZE;
- afsi_log("Default trace buffer size %d", traceBufSize);
- }
+ dummyLen = sizeof(traceBufSize);
+ code = RegQueryValueEx(parmKey, "TraceBufferSize", NULL, NULL,
+ (BYTE *) &traceBufSize, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Trace Buffer size %d", traceBufSize);
+ else {
+ traceBufSize = CM_CONFIGDEFAULT_TRACEBUFSIZE;
+ afsi_log("Default trace buffer size %d", traceBufSize);
+ }
- /* setup and enable debug log */
- afsd_logp = osi_LogCreate("afsd", traceBufSize);
- afsi_log("osi_LogCreate log addr %x", (int)afsd_logp);
+ /* setup and enable debug log */
+ afsd_logp = osi_LogCreate("afsd", traceBufSize);
+ afsi_log("osi_LogCreate log addr %x", (int)afsd_logp);
osi_LogEnable(afsd_logp);
- logReady = 1;
+ logReady = 1;
osi_Log0(afsd_logp, "Log init");
- dummyLen = sizeof(cacheSize);
- code = RegQueryValueEx(parmKey, "CacheSize", NULL, NULL,
- (BYTE *) &cacheSize, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Cache size %d", cacheSize);
- else {
- cacheSize = CM_CONFIGDEFAULT_CACHESIZE;
- afsi_log("Default cache size %d", cacheSize);
- }
+ dummyLen = sizeof(cacheSize);
+ code = RegQueryValueEx(parmKey, "CacheSize", NULL, NULL,
+ (BYTE *) &cacheSize, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Cache size %d", cacheSize);
+ else {
+ cacheSize = CM_CONFIGDEFAULT_CACHESIZE;
+ afsi_log("Default cache size %d", cacheSize);
+ }
- dummyLen = sizeof(logChunkSize);
- code = RegQueryValueEx(parmKey, "ChunkSize", NULL, NULL,
- (BYTE *) &logChunkSize, &dummyLen);
- if (code == ERROR_SUCCESS) {
- if (logChunkSize < 12 || logChunkSize > 30) {
- afsi_log("Invalid chunk size %d, using default",
- logChunkSize);
- logChunkSize = CM_CONFIGDEFAULT_CHUNKSIZE;
- }
- afsi_log("Chunk size %d", logChunkSize);
- } else {
- logChunkSize = CM_CONFIGDEFAULT_CHUNKSIZE;
- afsi_log("Default chunk size %d", logChunkSize);
- }
- cm_logChunkSize = logChunkSize;
- cm_chunkSize = 1 << logChunkSize;
-
- dummyLen = sizeof(numBkgD);
- code = RegQueryValueEx(parmKey, "Daemons", NULL, NULL,
- (BYTE *) &numBkgD, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("%d background daemons", numBkgD);
- else {
- numBkgD = CM_CONFIGDEFAULT_DAEMONS;
- afsi_log("Defaulting to %d background daemons", numBkgD);
- }
+ dummyLen = sizeof(logChunkSize);
+ code = RegQueryValueEx(parmKey, "ChunkSize", NULL, NULL,
+ (BYTE *) &logChunkSize, &dummyLen);
+ if (code == ERROR_SUCCESS) {
+ if (logChunkSize < 12 || logChunkSize > 30) {
+ afsi_log("Invalid chunk size %d, using default",
+ logChunkSize);
+ logChunkSize = CM_CONFIGDEFAULT_CHUNKSIZE;
+ }
+ afsi_log("Chunk size %d", logChunkSize);
+ } else {
+ logChunkSize = CM_CONFIGDEFAULT_CHUNKSIZE;
+ afsi_log("Default chunk size %d", logChunkSize);
+ }
+ cm_logChunkSize = logChunkSize;
+ cm_chunkSize = 1 << logChunkSize;
+
+ dummyLen = sizeof(numBkgD);
+ code = RegQueryValueEx(parmKey, "Daemons", NULL, NULL,
+ (BYTE *) &numBkgD, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("%d background daemons", numBkgD);
+ else {
+ numBkgD = CM_CONFIGDEFAULT_DAEMONS;
+ afsi_log("Defaulting to %d background daemons", numBkgD);
+ }
- dummyLen = sizeof(numSvThreads);
- code = RegQueryValueEx(parmKey, "ServerThreads", NULL, NULL,
- (BYTE *) &numSvThreads, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("%d server threads", numSvThreads);
- else {
- numSvThreads = CM_CONFIGDEFAULT_SVTHREADS;
- afsi_log("Defaulting to %d server threads", numSvThreads);
- }
+ dummyLen = sizeof(numSvThreads);
+ code = RegQueryValueEx(parmKey, "ServerThreads", NULL, NULL,
+ (BYTE *) &numSvThreads, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("%d server threads", numSvThreads);
+ else {
+ numSvThreads = CM_CONFIGDEFAULT_SVTHREADS;
+ afsi_log("Defaulting to %d server threads", numSvThreads);
+ }
- dummyLen = sizeof(stats);
- code = RegQueryValueEx(parmKey, "Stats", NULL, NULL,
- (BYTE *) &stats, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Status cache size %d", stats);
- else {
- stats = CM_CONFIGDEFAULT_STATS;
- afsi_log("Default status cache size %d", stats);
- }
+ dummyLen = sizeof(stats);
+ code = RegQueryValueEx(parmKey, "Stats", NULL, NULL,
+ (BYTE *) &stats, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Status cache size %d", stats);
+ else {
+ stats = CM_CONFIGDEFAULT_STATS;
+ afsi_log("Default status cache size %d", stats);
+ }
- dummyLen = sizeof(ltt);
- code = RegQueryValueEx(parmKey, "LogoffTokenTransfer", NULL, NULL,
- (BYTE *) <t, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Logoff token transfer %s", (ltt ? "on" : "off"));
- else {
- ltt = 1;
- afsi_log("Logoff token transfer on by default");
- }
+ dummyLen = sizeof(ltt);
+ code = RegQueryValueEx(parmKey, "LogoffTokenTransfer", NULL, NULL,
+ (BYTE *) <t, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Logoff token transfer %s", (ltt ? "on" : "off"));
+ else {
+ ltt = 1;
+ afsi_log("Logoff token transfer on by default");
+ }
smb_LogoffTokenTransfer = ltt;
afsi_log("Logoff token transfer is currently ignored");
- if (ltt) {
- dummyLen = sizeof(ltto);
- code = RegQueryValueEx(parmKey, "LogoffTokenTransferTimeout",
- NULL, NULL, (BYTE *) <to, &dummyLen);
- if (code == ERROR_SUCCESS)
+ if (ltt) {
+ dummyLen = sizeof(ltto);
+ code = RegQueryValueEx(parmKey, "LogoffTokenTransferTimeout",
+ NULL, NULL, (BYTE *) <to, &dummyLen);
+ if (code == ERROR_SUCCESS)
afsi_log("Logoff token tranfer timeout %d seconds", ltto);
- else {
- ltto = 10;
- afsi_log("Default logoff token transfer timeout 10 seconds");
- }
- } else {
+ else {
+ ltto = 10;
+ afsi_log("Default logoff token transfer timeout 10 seconds");
+ }
+ } else {
ltto = 0;
- }
+ }
smb_LogoffTransferTimeout = ltto;
afsi_log("Default logoff token is currently ignored");
- dummyLen = sizeof(cm_rootVolumeName);
- code = RegQueryValueEx(parmKey, "RootVolume", NULL, NULL,
- cm_rootVolumeName, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Root volume %s", cm_rootVolumeName);
- else {
- StringCbCopyA(cm_rootVolumeName, sizeof(cm_rootVolumeName), "root.afs");
- afsi_log("Default root volume name root.afs");
- }
+ dummyLen = sizeof(cm_rootVolumeName);
+ code = RegQueryValueEx(parmKey, "RootVolume", NULL, NULL,
+ cm_rootVolumeName, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Root volume %s", cm_rootVolumeName);
+ else {
+ StringCbCopyA(cm_rootVolumeName, sizeof(cm_rootVolumeName), "root.afs");
+ afsi_log("Default root volume name root.afs");
+ }
- cm_mountRootLen = sizeof(cm_mountRoot);
- code = RegQueryValueEx(parmKey, "MountRoot", NULL, NULL,
- cm_mountRoot, &cm_mountRootLen);
- if (code == ERROR_SUCCESS) {
- afsi_log("Mount root %s", cm_mountRoot);
- cm_mountRootLen = strlen(cm_mountRoot);
- } else {
- StringCbCopyA(cm_mountRoot, sizeof(cm_mountRoot), "/afs");
- cm_mountRootLen = 4;
- /* Don't log */
- }
+ cm_mountRootLen = sizeof(cm_mountRoot);
+ code = RegQueryValueEx(parmKey, "MountRoot", NULL, NULL,
+ cm_mountRoot, &cm_mountRootLen);
+ if (code == ERROR_SUCCESS) {
+ afsi_log("Mount root %s", cm_mountRoot);
+ cm_mountRootLen = strlen(cm_mountRoot);
+ } else {
+ StringCbCopyA(cm_mountRoot, sizeof(cm_mountRoot), "/afs");
+ cm_mountRootLen = 4;
+ /* Don't log */
+ }
- dummyLen = sizeof(buf);
- code = RegQueryValueEx(parmKey, "CachePath", NULL, ®Type,
- buf, &dummyLen);
+ dummyLen = sizeof(buf);
+ code = RegQueryValueEx(parmKey, "CachePath", NULL, ®Type,
+ buf, &dummyLen);
if (code == ERROR_SUCCESS && buf[0]) {
if (regType == REG_EXPAND_SZ) {
dummyLen = ExpandEnvironmentStrings(buf, cm_CachePath, sizeof(cm_CachePath));
} else {
StringCbCopyA(cm_CachePath, sizeof(cm_CachePath), buf);
}
- afsi_log("Cache path %s", cm_CachePath);
+ afsi_log("Cache path %s", cm_CachePath);
} else {
- GetWindowsDirectory(cm_CachePath, sizeof(cm_CachePath));
- cm_CachePath[2] = 0; /* get drive letter only */
- StringCbCatA(cm_CachePath, sizeof(cm_CachePath), "\\AFSCache");
- afsi_log("Default cache path %s", cm_CachePath);
- }
+ GetWindowsDirectory(cm_CachePath, sizeof(cm_CachePath));
+ cm_CachePath[2] = 0; /* get drive letter only */
+ StringCbCatA(cm_CachePath, sizeof(cm_CachePath), "\\AFSCache");
+ afsi_log("Default cache path %s", cm_CachePath);
+ }
dummyLen = sizeof(virtualCache);
code = RegQueryValueEx(parmKey, "NonPersistentCaching", NULL, NULL,
- &virtualCache, &dummyLen);
+ &virtualCache, &dummyLen);
if (code == ERROR_SUCCESS && virtualCache) {
buf_cacheType = CM_BUF_CACHETYPE_VIRTUAL;
} else {
}
afsi_log("Cache type is %s", ((buf_cacheType == CM_BUF_CACHETYPE_FILE)?"FILE":"VIRTUAL"));
- dummyLen = sizeof(traceOnPanic);
- code = RegQueryValueEx(parmKey, "TrapOnPanic", NULL, NULL,
- (BYTE *) &traceOnPanic, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Set to %s on panic",
- traceOnPanic ? "trap" : "not trap");
- else {
- traceOnPanic = 0;
- /* Don't log */
- }
+ dummyLen = sizeof(traceOnPanic);
+ code = RegQueryValueEx(parmKey, "TrapOnPanic", NULL, NULL,
+ (BYTE *) &traceOnPanic, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Set to %s on panic",
+ traceOnPanic ? "trap" : "not trap");
+ else {
+ traceOnPanic = 0;
+ /* Don't log */
+ }
- dummyLen = sizeof(reportSessionStartups);
- code = RegQueryValueEx(parmKey, "ReportSessionStartups", NULL, NULL,
- (BYTE *) &reportSessionStartups, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Session startups %s be recorded in the Event Log",
- reportSessionStartups ? "will" : "will not");
- else {
- reportSessionStartups = 0;
- /* Don't log */
- }
+ dummyLen = sizeof(reportSessionStartups);
+ code = RegQueryValueEx(parmKey, "ReportSessionStartups", NULL, NULL,
+ (BYTE *) &reportSessionStartups, &dummyLen);
+ if (code == ERROR_SUCCESS)
+ afsi_log("Session startups %s be recorded in the Event Log",
+ reportSessionStartups ? "will" : "will not");
+ else {
+ reportSessionStartups = 0;
+ /* Don't log */
+ }
for ( i=0; i < MAXNUMSYSNAMES; i++ ) {
cm_sysNameList[i] = osi_Alloc(MAXSYSNAME);
}
cm_sysName = cm_sysNameList[0];
- dummyLen = MAXSYSNAME;
+ dummyLen = MAXSYSNAME;
code = RegQueryValueEx(parmKey, "SysName", NULL, NULL, cm_sysName, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("Sys name %s", cm_sysName);
- else {
- StringCbCopyA(cm_sysName, MAXSYSNAME, "i386_nt40");
- afsi_log("Default sys name %s", cm_sysName);
- }
+ if (code == ERROR_SUCCESS)
+ afsi_log("Sys name %s", cm_sysName);
+ else {
+ StringCbCopyA(cm_sysName, MAXSYSNAME, "i386_nt40");
+ afsi_log("Default sys name %s", cm_sysName);
+ }
cm_sysNameCount = 1;
- dummyLen = sizeof(cryptall);
- code = RegQueryValueEx(parmKey, "SecurityLevel", NULL, NULL,
- (BYTE *) &cryptall, &dummyLen);
- if (code == ERROR_SUCCESS)
- afsi_log("SecurityLevel is %s", cryptall?"crypt":"clear");
- else {
- cryptall = rxkad_clear;
- afsi_log("Default SecurityLevel is clear");
- }
+ dummyLen = sizeof(cryptall);
+ code = RegQueryValueEx(parmKey, "SecurityLevel", NULL, NULL,
+ (BYTE *) &cryptall, &dummyLen);
+ if (code == ERROR_SUCCESS) {
+ afsi_log("SecurityLevel is %s", cryptall?"crypt":"clear");
+ } else {
+ cryptall = 0;
+ afsi_log("Default SecurityLevel is clear");
+ }
#ifdef AFS_AFSDB_ENV
- dummyLen = sizeof(cm_dnsEnabled);
- code = RegQueryValueEx(parmKey, "UseDNS", NULL, NULL,
- (BYTE *) &cm_dnsEnabled, &dummyLen);
- if (code == ERROR_SUCCESS) {
- afsi_log("DNS %s be used to find AFS cell servers",
- cm_dnsEnabled ? "will" : "will not");
- }
- else {
- cm_dnsEnabled = 1; /* default on */
- afsi_log("Default to use DNS to find AFS cell servers");
- }
+ dummyLen = sizeof(cm_dnsEnabled);
+ code = RegQueryValueEx(parmKey, "UseDNS", NULL, NULL,
+ (BYTE *) &cm_dnsEnabled, &dummyLen);
+ if (code == ERROR_SUCCESS) {
+ afsi_log("DNS %s be used to find AFS cell servers",
+ cm_dnsEnabled ? "will" : "will not");
+ }
+ else {
+ cm_dnsEnabled = 1; /* default on */
+ afsi_log("Default to use DNS to find AFS cell servers");
+ }
#else /* AFS_AFSDB_ENV */
- afsi_log("AFS not built with DNS support to find AFS cell servers");
+ afsi_log("AFS not built with DNS support to find AFS cell servers");
#endif /* AFS_AFSDB_ENV */
#ifdef AFS_FREELANCE_CLIENT
- dummyLen = sizeof(cm_freelanceEnabled);
- code = RegQueryValueEx(parmKey, "FreelanceClient", NULL, NULL,
- (BYTE *) &cm_freelanceEnabled, &dummyLen);
- if (code == ERROR_SUCCESS) {
- afsi_log("Freelance client feature %s activated",
- cm_freelanceEnabled ? "is" : "is not");
- }
- else {
- cm_freelanceEnabled = 0; /* default off */
- }
+ dummyLen = sizeof(cm_freelanceEnabled);
+ code = RegQueryValueEx(parmKey, "FreelanceClient", NULL, NULL,
+ (BYTE *) &cm_freelanceEnabled, &dummyLen);
+ if (code == ERROR_SUCCESS) {
+ afsi_log("Freelance client feature %s activated",
+ cm_freelanceEnabled ? "is" : "is not");
+ }
+ else {
+ cm_freelanceEnabled = 0; /* default off */
+ }
#endif /* AFS_FREELANCE_CLIENT */
#ifdef COMMENT
}
afsi_log("Maximum number of VCs per server is %d", smb_maxVCPerServer);
- dummyLen = sizeof(smb_authType);
- code = RegQueryValueEx(parmKey, "SMBAuthType", NULL, NULL,
- (BYTE *) &smb_authType, &dummyLen);
+ dummyLen = sizeof(smb_authType);
+ code = RegQueryValueEx(parmKey, "SMBAuthType", NULL, NULL,
+ (BYTE *) &smb_authType, &dummyLen);
- if (code != ERROR_SUCCESS ||
- (smb_authType != SMB_AUTH_EXTENDED && smb_authType != SMB_AUTH_NTLM && smb_authType != SMB_AUTH_NONE)) {
- smb_authType = SMB_AUTH_EXTENDED; /* default is to use extended authentication */
- }
- afsi_log("SMB authentication type is %s", ((smb_authType == SMB_AUTH_NONE)?"NONE":((smb_authType == SMB_AUTH_EXTENDED)?"EXTENDED":"NTLM")));
+ if (code != ERROR_SUCCESS ||
+ (smb_authType != SMB_AUTH_EXTENDED && smb_authType != SMB_AUTH_NTLM && smb_authType != SMB_AUTH_NONE)) {
+ smb_authType = SMB_AUTH_EXTENDED; /* default is to use extended authentication */
+ }
+ afsi_log("SMB authentication type is %s", ((smb_authType == SMB_AUTH_NONE)?"NONE":((smb_authType == SMB_AUTH_EXTENDED)?"EXTENDED":"NTLM")));
dummyLen = sizeof(rx_nojumbo);
code = RegQueryValueEx(parmKey, "RxNoJumbo", NULL, NULL,
if (code != ERROR_SUCCESS) {
rx_nojumbo = 0;
}
- if(rx_nojumbo)
+ if (rx_nojumbo)
afsi_log("RX Jumbograms are disabled");
dummyLen = sizeof(rx_mtu);
if (code != ERROR_SUCCESS || !rx_mtu) {
rx_mtu = -1;
}
- if(rx_mtu != -1)
+ if (rx_mtu != -1)
afsi_log("RX maximum MTU is %d", rx_mtu);
dummyLen = sizeof(ConnDeadtimeout);
(BYTE *) &HardDeadtimeout, &dummyLen);
afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
- RegCloseKey (parmKey);
+ RegCloseKey (parmKey);
/* Call lanahelper to get Netbios name, lan adapter number and gateway flag */
if(SUCCEEDED(code = lana_GetUncServerNameEx(cm_NetbiosName, &lanaNum, &isGateway, LANA_NETBIOS_NAME_FULL))) {
LANadapter = (lanaNum == LANA_INVALID)? -1: lanaNum;
- if(LANadapter != -1)
+ if (LANadapter != -1)
afsi_log("LAN adapter number %d", LANadapter);
else
afsi_log("LAN adapter number not determined");
- if(isGateway)
+ if (isGateway)
afsi_log("Set for gateway service");
afsi_log("Using >%s< as SMB server name", cm_NetbiosName);
osi_panic(buf, __FILE__, __LINE__);
}
- /* setup early variables */
- /* These both used to be configurable. */
- smb_UseV3 = 1;
+ /* setup early variables */
+ /* These both used to be configurable. */
+ smb_UseV3 = 1;
buf_bufferSize = CM_CONFIGDEFAULT_BLOCKSIZE;
- /* turn from 1024 byte units into memory blocks */
+ /* turn from 1024 byte units into memory blocks */
cacheBlocks = (cacheSize * 1024) / buf_bufferSize;
- /* get network related info */
- cm_noIPAddr = CM_MAXINTERFACE_ADDR;
- code = syscfg_GetIFInfo(&cm_noIPAddr,
- cm_IPAddr, cm_SubnetMask,
- cm_NetMtu, cm_NetFlags);
-
- if ( (cm_noIPAddr <= 0) || (code <= 0 ) )
- afsi_log("syscfg_GetIFInfo error code %d", code);
- else
- afsi_log("First Network address %x SubnetMask %x",
- cm_IPAddr[0], cm_SubnetMask[0]);
-
- /*
- * Save client configuration for GetCacheConfig requests
- */
- cm_initParams.nChunkFiles = 0;
- cm_initParams.nStatCaches = stats;
- cm_initParams.nDataCaches = 0;
- cm_initParams.nVolumeCaches = 0;
- cm_initParams.firstChunkSize = cm_chunkSize;
- cm_initParams.otherChunkSize = cm_chunkSize;
- cm_initParams.cacheSize = cacheSize;
- cm_initParams.setTime = 0;
- cm_initParams.memCache = 0;
+ /* get network related info */
+ cm_noIPAddr = CM_MAXINTERFACE_ADDR;
+ code = syscfg_GetIFInfo(&cm_noIPAddr,
+ cm_IPAddr, cm_SubnetMask,
+ cm_NetMtu, cm_NetFlags);
+
+ if ( (cm_noIPAddr <= 0) || (code <= 0 ) )
+ afsi_log("syscfg_GetIFInfo error code %d", code);
+ else
+ afsi_log("First Network address %x SubnetMask %x",
+ cm_IPAddr[0], cm_SubnetMask[0]);
+
+ /*
+ * Save client configuration for GetCacheConfig requests
+ */
+ cm_initParams.nChunkFiles = 0;
+ cm_initParams.nStatCaches = stats;
+ cm_initParams.nDataCaches = 0;
+ cm_initParams.nVolumeCaches = 0;
+ cm_initParams.firstChunkSize = cm_chunkSize;
+ cm_initParams.otherChunkSize = cm_chunkSize;
+ cm_initParams.cacheSize = cacheSize;
+ cm_initParams.setTime = 0;
+ cm_initParams.memCache = 0;
/* Set RX parameters before initializing RX */
if ( rx_nojumbo ) {
/* Ensure the AFS Netbios Name is registered to allow loopback access */
configureBackConnectionHostNames();
- /* initialize RX, and tell it to listen to port 7001, which is used for
+ /* initialize RX, and tell it to listen to port 7001, which is used for
* callback RPC messages.
*/
- code = rx_Init(htons(7001));
- afsi_log("rx_Init code %x", code);
- if (code != 0) {
- *reasonP = "afsd: failed to init rx client on port 7001";
- return -1;
- }
+ code = rx_Init(htons(7001));
+ afsi_log("rx_Init code %x", code);
+ if (code != 0) {
+ *reasonP = "afsd: failed to init rx client on port 7001";
+ return -1;
+ }
- /* Initialize the RPC server for session keys */
- RpcInit();
+ /* Initialize the RPC server for session keys */
+ RpcInit();
- /* create an unauthenticated service #1 for callbacks */
- nullServerSecurityClassp = rxnull_NewServerSecurityObject();
+ /* create an unauthenticated service #1 for callbacks */
+ nullServerSecurityClassp = rxnull_NewServerSecurityObject();
serverp = rx_NewService(0, 1, "AFS", &nullServerSecurityClassp, 1,
- RXAFSCB_ExecuteRequest);
- afsi_log("rx_NewService addr %x", (int)serverp);
- if (serverp == NULL) {
- *reasonP = "unknown error";
- return -1;
- }
+ RXAFSCB_ExecuteRequest);
+ afsi_log("rx_NewService addr %x", (int)serverp);
+ if (serverp == NULL) {
+ *reasonP = "unknown error";
+ return -1;
+ }
- nullServerSecurityClassp = rxnull_NewServerSecurityObject();
+ nullServerSecurityClassp = rxnull_NewServerSecurityObject();
serverp = rx_NewService(0, RX_STATS_SERVICE_ID, "rpcstats",
- &nullServerSecurityClassp, 1, RXSTATS_ExecuteRequest);
- afsi_log("rx_NewService addr %x", (int)serverp);
- if (serverp == NULL) {
- *reasonP = "unknown error";
- return -1;
- }
+ &nullServerSecurityClassp, 1, RXSTATS_ExecuteRequest);
+ afsi_log("rx_NewService addr %x", (int)serverp);
+ if (serverp == NULL) {
+ *reasonP = "unknown error";
+ return -1;
+ }
/* start server threads, *not* donating this one to the pool */
rx_StartServer(0);
- afsi_log("rx_StartServer");
+ afsi_log("rx_StartServer");
- /* init user daemon, and other packages */
- cm_InitUser();
+ /* init user daemon, and other packages */
+ cm_InitUser();
- cm_InitACLCache(2*stats);
+ cm_InitACLCache(2*stats);
- cm_InitConn();
+ cm_InitConn();
cm_InitCell();
cm_InitSCache(stats);
code = cm_InitDCache(0, cacheBlocks);
- afsi_log("cm_InitDCache code %x", code);
- if (code != 0) {
- *reasonP = "error initializing cache";
- return -1;
- }
+ afsi_log("cm_InitDCache code %x", code);
+ if (code != 0) {
+ *reasonP = "error initializing cache";
+ return -1;
+ }
#ifdef AFS_AFSDB_ENV
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
- if (cm_InitDNS(cm_dnsEnabled) == -1)
- cm_dnsEnabled = 0; /* init failed, so deactivate */
- afsi_log("cm_InitDNS %d", cm_dnsEnabled);
+ if (cm_InitDNS(cm_dnsEnabled) == -1)
+ cm_dnsEnabled = 0; /* init failed, so deactivate */
+ afsi_log("cm_InitDNS %d", cm_dnsEnabled);
#endif
#endif
- code = cm_GetRootCellName(rootCellName);
- afsi_log("cm_GetRootCellName code %d, cm_freelanceEnabled= %d, rcn= %s",
- code, cm_freelanceEnabled, (code ? "<none>" : rootCellName));
- if (code != 0 && !cm_freelanceEnabled)
+ code = cm_GetRootCellName(rootCellName);
+ afsi_log("cm_GetRootCellName code %d, cm_freelanceEnabled= %d, rcn= %s",
+ code, cm_freelanceEnabled, (code ? "<none>" : rootCellName));
+ if (code != 0 && !cm_freelanceEnabled)
{
- *reasonP = "can't find root cell name in afsd.ini";
- return -1;
- }
+ *reasonP = "can't find root cell name in afsd.ini";
+ return -1;
+ }
else if (cm_freelanceEnabled)
cm_rootCellp = NULL;
*reasonP = "can't find root cell in afsdcell.ini";
return -1;
}
- }
-
+ }
#ifdef AFS_FREELANCE_CLIENT
- if (cm_freelanceEnabled)
- cm_InitFreelance();
+ if (cm_freelanceEnabled)
+ cm_InitFreelance();
#endif
- return 0;
+ return 0;
}
int afsd_InitDaemons(char **reasonP)
/* hold a reference to an already held buffer */
void buf_Hold(cm_buf_t *bp)
{
- lock_ObtainWrite(&buf_globalLock);
- bp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
+ lock_ObtainWrite(&buf_globalLock);
+ bp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
}
/* incremental sync daemon. Writes 1/10th of all the buffers every 5000 ms */
void buf_IncrSyncer(long parm)
{
- cm_buf_t *bp; /* buffer we're hacking on; held */
- long i; /* counter */
- long nAtOnce; /* how many to do at once */
- cm_req_t req;
-
- lock_ObtainWrite(&buf_globalLock);
- bp = buf_allp;
- bp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
- nAtOnce = buf_nbuffers / 10;
- while (1) {
+ cm_buf_t *bp; /* buffer we're hacking on; held */
+ long i; /* counter */
+ long nAtOnce; /* how many to do at once */
+ cm_req_t req;
+
+ lock_ObtainWrite(&buf_globalLock);
+ bp = buf_allp;
+ bp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
+ nAtOnce = buf_nbuffers / 10;
+ while (1) {
#ifndef DJGPP
- i = SleepEx(5000, 1);
- if (i != 0) continue;
+ i = SleepEx(5000, 1);
+ if (i != 0) continue;
#else
- thrd_Sleep(5000);
+ thrd_Sleep(5000);
#endif /* DJGPP */
- /* now go through our percentage of the buffers */
- for(i=0; i<nAtOnce; i++) {
- /* don't want its identity changing while we're
- * messing with it, so must do all of this with
- * bp held.
- */
-
- /* start cleaning the buffer; don't touch log pages since
- * the log code counts on knowing exactly who is writing
- * a log page at any given instant.
- */
- cm_InitReq(&req);
- req.flags |= CM_REQ_NORETRY;
- buf_CleanAsync(bp, &req);
-
- /* now advance to the next buffer; the allp chain never changes,
- * and so can be followed even when holding no locks.
- */
- lock_ObtainWrite(&buf_globalLock);
- buf_LockedRelease(bp);
- bp = bp->allp;
- if (!bp) bp = buf_allp;
- bp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
- } /* for loop over a bunch of buffers */
- } /* whole daemon's while loop */
+ /* now go through our percentage of the buffers */
+ for(i=0; i<nAtOnce; i++) {
+ /* don't want its identity changing while we're
+ * messing with it, so must do all of this with
+ * bp held.
+ */
+
+ /* start cleaning the buffer; don't touch log pages since
+ * the log code counts on knowing exactly who is writing
+ * a log page at any given instant.
+ */
+ cm_InitReq(&req);
+ req.flags |= CM_REQ_NORETRY;
+ buf_CleanAsync(bp, &req);
+
+ /* now advance to the next buffer; the allp chain never changes,
+ * and so can be followed even when holding no locks.
+ */
+ lock_ObtainWrite(&buf_globalLock);
+ buf_LockedRelease(bp);
+ bp = bp->allp;
+ if (!bp) bp = buf_allp;
+ bp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
+ } /* for loop over a bunch of buffers */
+ } /* whole daemon's while loop */
}
#ifndef DJGPP
*/
PSECURITY_ATTRIBUTES CreateCacheFileSA()
{
- PSECURITY_ATTRIBUTES psa;
- PSECURITY_DESCRIPTOR psd;
- SID_IDENTIFIER_AUTHORITY authority = SECURITY_NT_AUTHORITY;
- PSID AdminSID;
- DWORD AdminSIDlength;
- PACL AdminOnlyACL;
- DWORD ACLlength;
-
- /* Get Administrator SID */
- AllocateAndInitializeSid(&authority, 2,
- SECURITY_BUILTIN_DOMAIN_RID,
- DOMAIN_ALIAS_RID_ADMINS,
- 0, 0, 0, 0, 0, 0,
- &AdminSID);
-
- /* Create Administrator-only ACL */
- AdminSIDlength = GetLengthSid(AdminSID);
- ACLlength = sizeof(ACL) + sizeof(ACCESS_ALLOWED_ACE)
- + AdminSIDlength - sizeof(DWORD);
- AdminOnlyACL = GlobalAlloc(GMEM_FIXED, ACLlength);
- InitializeAcl(AdminOnlyACL, ACLlength, ACL_REVISION);
- AddAccessAllowedAce(AdminOnlyACL, ACL_REVISION,
- STANDARD_RIGHTS_ALL | SPECIFIC_RIGHTS_ALL,
- AdminSID);
-
- /* Create security descriptor */
- psd = GlobalAlloc(GMEM_FIXED, sizeof(SECURITY_DESCRIPTOR));
- InitializeSecurityDescriptor(psd, SECURITY_DESCRIPTOR_REVISION);
- SetSecurityDescriptorDacl(psd, TRUE, AdminOnlyACL, FALSE);
-
- /* Create security attributes structure */
- psa = GlobalAlloc(GMEM_FIXED, sizeof(SECURITY_ATTRIBUTES));
- psa->nLength = sizeof(SECURITY_ATTRIBUTES);
- psa->lpSecurityDescriptor = psd;
- psa->bInheritHandle = TRUE;
-
- return psa;
-}
+ PSECURITY_ATTRIBUTES psa;
+ PSECURITY_DESCRIPTOR psd;
+ SID_IDENTIFIER_AUTHORITY authority = SECURITY_NT_AUTHORITY;
+ PSID AdminSID;
+ DWORD AdminSIDlength;
+ PACL AdminOnlyACL;
+ DWORD ACLlength;
+
+ /* Get Administrator SID */
+ AllocateAndInitializeSid(&authority, 2,
+ SECURITY_BUILTIN_DOMAIN_RID,
+ DOMAIN_ALIAS_RID_ADMINS,
+ 0, 0, 0, 0, 0, 0,
+ &AdminSID);
+
+ /* Create Administrator-only ACL */
+ AdminSIDlength = GetLengthSid(AdminSID);
+ ACLlength = sizeof(ACL) + sizeof(ACCESS_ALLOWED_ACE)
+ + AdminSIDlength - sizeof(DWORD);
+ AdminOnlyACL = GlobalAlloc(GMEM_FIXED, ACLlength);
+ InitializeAcl(AdminOnlyACL, ACLlength, ACL_REVISION);
+ AddAccessAllowedAce(AdminOnlyACL, ACL_REVISION,
+ STANDARD_RIGHTS_ALL | SPECIFIC_RIGHTS_ALL,
+ AdminSID);
+
+ /* Create security descriptor */
+ psd = GlobalAlloc(GMEM_FIXED, sizeof(SECURITY_DESCRIPTOR));
+ InitializeSecurityDescriptor(psd, SECURITY_DESCRIPTOR_REVISION);
+ SetSecurityDescriptorDacl(psd, TRUE, AdminOnlyACL, FALSE);
+
+ /* Create security attributes structure */
+ psa = GlobalAlloc(GMEM_FIXED, sizeof(SECURITY_ATTRIBUTES));
+ psa->nLength = sizeof(SECURITY_ATTRIBUTES);
+ psa->lpSecurityDescriptor = psd;
+ psa->bInheritHandle = TRUE;
+
+ return psa;
+}
#endif /* !DJGPP */
#ifndef DJGPP
/* Free a security attribute structure created by CreateCacheFileSA() */
VOID FreeCacheFileSA(PSECURITY_ATTRIBUTES psa)
{
- BOOL b1, b2;
- PACL pAcl;
-
- GetSecurityDescriptorDacl(psa->lpSecurityDescriptor, &b1, &pAcl, &b2);
- GlobalFree(pAcl);
- GlobalFree(psa->lpSecurityDescriptor);
- GlobalFree(psa);
-}
+ BOOL b1, b2;
+ PACL pAcl;
+
+ GetSecurityDescriptorDacl(psa->lpSecurityDescriptor, &b1, &pAcl, &b2);
+ GlobalFree(pAcl);
+ GlobalFree(psa->lpSecurityDescriptor);
+ GlobalFree(psa);
+}
#endif /* !DJGPP */
/* initialize the buffer package; called with no locks
*/
long buf_Init(cm_buf_ops_t *opsp)
{
- static osi_once_t once;
- cm_buf_t *bp;
- long sectorSize;
- thread_t phandle;
+ static osi_once_t once;
+ cm_buf_t *bp;
+ long sectorSize;
+ thread_t phandle;
#ifndef DJGPP
- HANDLE hf, hm;
- PSECURITY_ATTRIBUTES psa;
+ HANDLE hf, hm;
+ PSECURITY_ATTRIBUTES psa;
#endif /* !DJGPP */
- long i;
- unsigned long pid;
- char *data;
- long cs;
+ long i;
+ unsigned long pid;
+ char *data;
+ long cs;
#ifndef DJGPP
- /* Get system info; all we really want is the allocation granularity */
- GetSystemInfo(&sysInfo);
+ /* Get system info; all we really want is the allocation granularity */
+ GetSystemInfo(&sysInfo);
#endif /* !DJGPP */
- /* Have to be able to reserve a whole chunk */
- if (((buf_nbuffers - 3) * buf_bufferSize) < cm_chunkSize)
- return CM_ERROR_TOOFEWBUFS;
+ /* Have to be able to reserve a whole chunk */
+ if (((buf_nbuffers - 3) * buf_bufferSize) < cm_chunkSize)
+ return CM_ERROR_TOOFEWBUFS;
- /* recall for callouts */
- cm_buf_opsp = opsp;
+ /* recall for callouts */
+ cm_buf_opsp = opsp;
- if (osi_Once(&once)) {
- /* initialize global locks */
- lock_InitializeRWLock(&buf_globalLock, "Global buffer lock");
+ if (osi_Once(&once)) {
+ /* initialize global locks */
+ lock_InitializeRWLock(&buf_globalLock, "Global buffer lock");
#ifndef DJGPP
- /*
- * Cache file mapping constrained by
- * system allocation granularity;
- * round up, assuming granularity is a power of two
- */
- cs = buf_nbuffers * buf_bufferSize;
- cs = (cs + (sysInfo.dwAllocationGranularity - 1))
- & ~(sysInfo.dwAllocationGranularity - 1);
- if (cs != buf_nbuffers * buf_bufferSize) {
- buf_nbuffers = cs / buf_bufferSize;
- afsi_log("Cache size rounded up to %d buffers",
- buf_nbuffers);
- }
+ /*
+ * Cache file mapping constrained by
+ * system allocation granularity;
+ * round up, assuming granularity is a power of two
+ */
+ cs = buf_nbuffers * buf_bufferSize;
+ cs = (cs + (sysInfo.dwAllocationGranularity - 1))
+ & ~(sysInfo.dwAllocationGranularity - 1);
+ if (cs != buf_nbuffers * buf_bufferSize) {
+ buf_nbuffers = cs / buf_bufferSize;
+ afsi_log("Cache size rounded up to %d buffers",
+ buf_nbuffers);
+ }
#endif /* !DJGPP */
- /* remember this for those who want to reset it */
- buf_nOrigBuffers = buf_nbuffers;
+ /* remember this for those who want to reset it */
+ buf_nOrigBuffers = buf_nbuffers;
- /* lower hash size to a prime number */
- buf_hashSize = osi_PrimeLessThan(buf_hashSize);
+ /* lower hash size to a prime number */
+ buf_hashSize = osi_PrimeLessThan(buf_hashSize);
- /* create hash table */
- buf_hashTablepp = malloc(buf_hashSize * sizeof(cm_buf_t *));
- memset((void *)buf_hashTablepp, 0,
- buf_hashSize * sizeof(cm_buf_t *));
+ /* create hash table */
+ buf_hashTablepp = malloc(buf_hashSize * sizeof(cm_buf_t *));
+ memset((void *)buf_hashTablepp, 0,
+ buf_hashSize * sizeof(cm_buf_t *));
- /* another hash table */
- buf_fileHashTablepp = malloc(buf_hashSize * sizeof(cm_buf_t *));
- memset((void *)buf_fileHashTablepp, 0,
- buf_hashSize * sizeof(cm_buf_t *));
+ /* another hash table */
+ buf_fileHashTablepp = malloc(buf_hashSize * sizeof(cm_buf_t *));
+ memset((void *)buf_fileHashTablepp, 0,
+ buf_hashSize * sizeof(cm_buf_t *));
- /* min value for which this works */
- sectorSize = 1;
+ /* min value for which this works */
+ sectorSize = 1;
#ifndef DJGPP
- if(buf_cacheType == CM_BUF_CACHETYPE_FILE) {
- /* Reserve buffer space by mapping cache file */
- psa = CreateCacheFileSA();
- hf = CreateFile(cm_CachePath,
- GENERIC_READ | GENERIC_WRITE,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- psa,
- OPEN_ALWAYS,
- FILE_ATTRIBUTE_NORMAL,
- NULL);
- if (hf == INVALID_HANDLE_VALUE) {
- afsi_log("create file error %d", GetLastError());
- return CM_ERROR_INVAL;
- }
- FreeCacheFileSA(psa);
+ if (buf_cacheType == CM_BUF_CACHETYPE_FILE) {
+ /* Reserve buffer space by mapping cache file */
+ psa = CreateCacheFileSA();
+ hf = CreateFile(cm_CachePath,
+ GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ psa,
+ OPEN_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL,
+ NULL);
+ if (hf == INVALID_HANDLE_VALUE) {
+ afsi_log("Error creating cache file \"%s\" error %d",
+ cm_CachePath, GetLastError());
+ return CM_ERROR_INVAL;
+ }
+ FreeCacheFileSA(psa);
} else { /* buf_cacheType == CM_BUF_CACHETYPE_VIRTUAL */
hf = INVALID_HANDLE_VALUE;
}
- CacheHandle = hf;
- hm = CreateFileMapping(hf,
- NULL,
- PAGE_READWRITE,
- 0, buf_nbuffers * buf_bufferSize,
- NULL);
- if (hm == NULL) {
- if (GetLastError() == ERROR_DISK_FULL) {
- afsi_log("Error creating cache file mapping: disk full");
- return CM_ERROR_TOOMANYBUFS;
- }
- return CM_ERROR_INVAL;
- }
- data = MapViewOfFile(hm,
- FILE_MAP_ALL_ACCESS,
- 0, 0,
- buf_nbuffers * buf_bufferSize);
- if (data == NULL) {
- if(hf != INVALID_HANDLE_VALUE) CloseHandle(hf);
- CloseHandle(hm);
- return CM_ERROR_INVAL;
- }
- CloseHandle(hm);
-#else
- /* djgpp doesn't support memory mapped files */
- data = malloc(buf_nbuffers * buf_bufferSize);
+ CacheHandle = hf;
+ hm = CreateFileMapping(hf,
+ NULL,
+ PAGE_READWRITE,
+ 0, buf_nbuffers * buf_bufferSize,
+ NULL);
+ if (hm == NULL) {
+ if (GetLastError() == ERROR_DISK_FULL) {
+ afsi_log("Error creating cache file \"%s\" mapping: disk full",
+ cm_CachePath);
+ return CM_ERROR_TOOMANYBUFS;
+ }
+ return CM_ERROR_INVAL;
+ }
+ data = MapViewOfFile(hm,
+ FILE_MAP_ALL_ACCESS,
+ 0, 0,
+ buf_nbuffers * buf_bufferSize);
+ if (data == NULL) {
+ if (hf != INVALID_HANDLE_VALUE)
+ CloseHandle(hf);
+ CloseHandle(hm);
+ return CM_ERROR_INVAL;
+ }
+ CloseHandle(hm);
+#else
+ /* djgpp doesn't support memory mapped files */
+ data = malloc(buf_nbuffers * buf_bufferSize);
#endif /* !DJGPP */
- /* create buffer headers and put in free list */
- bp = malloc(buf_nbuffers * sizeof(cm_buf_t));
- buf_allp = NULL;
- for(i=0; i<buf_nbuffers; i++) {
- /* allocate and zero some storage */
- memset(bp, 0, sizeof(cm_buf_t));
+ /* create buffer headers and put in free list */
+ bp = malloc(buf_nbuffers * sizeof(cm_buf_t));
+ buf_allp = NULL;
+ for(i=0; i<buf_nbuffers; i++) {
+ /* allocate and zero some storage */
+ memset(bp, 0, sizeof(cm_buf_t));
- /* thread on list of all buffers */
- bp->allp = buf_allp;
- buf_allp = bp;
-
- osi_QAdd((osi_queue_t **)&buf_freeListp, &bp->q);
- bp->flags |= CM_BUF_INLRU;
- lock_InitializeMutex(&bp->mx, "Buffer mutex");
+ /* thread on list of all buffers */
+ bp->allp = buf_allp;
+ buf_allp = bp;
- /* grab appropriate number of bytes from aligned zone */
- bp->datap = data;
+ osi_QAdd((osi_queue_t **)&buf_freeListp, &bp->q);
+ bp->flags |= CM_BUF_INLRU;
+ lock_InitializeMutex(&bp->mx, "Buffer mutex");
- /* setup last buffer pointer */
- if (i == 0)
- buf_freeListEndp = bp;
+ /* grab appropriate number of bytes from aligned zone */
+ bp->datap = data;
- /* next */
- bp++;
- data += buf_bufferSize;
- }
-
- /* none reserved at first */
- buf_reservedBufs = 0;
-
- /* just for safety's sake */
- buf_maxReservedBufs = buf_nbuffers - 3;
-
- /* init the buffer trace log */
- buf_logp = osi_LogCreate("buffer", 10);
+ /* setup last buffer pointer */
+ if (i == 0)
+ buf_freeListEndp = bp;
- osi_EndOnce(&once);
-
- /* and create the incr-syncer */
- phandle = thrd_Create(0, 0,
- (ThreadFunc) buf_IncrSyncer, 0, 0, &pid,
- "buf_IncrSyncer");
+ /* next */
+ bp++;
+ data += buf_bufferSize;
+ }
+
+ /* none reserved at first */
+ buf_reservedBufs = 0;
+
+ /* just for safety's sake */
+ buf_maxReservedBufs = buf_nbuffers - 3;
+
+ /* init the buffer trace log */
+ buf_logp = osi_LogCreate("buffer", 10);
- osi_assertx(phandle != NULL, "buf: can't create incremental sync proc");
+ osi_EndOnce(&once);
+
+ /* and create the incr-syncer */
+ phandle = thrd_Create(0, 0,
+ (ThreadFunc) buf_IncrSyncer, 0, 0, &pid,
+ "buf_IncrSyncer");
+
+ osi_assertx(phandle != NULL, "buf: can't create incremental sync proc");
#ifndef DJGPP
- CloseHandle(phandle);
+ CloseHandle(phandle);
#endif /* !DJGPP */
- }
+ }
- return 0;
+ return 0;
}
/* add nbuffers to the buffer pool, if possible.
*/
long buf_AddBuffers(long nbuffers)
{
- cm_buf_t *bp;
- int i;
- char *data;
+ cm_buf_t *bp;
+ int i;
+ char *data;
#ifndef DJGPP
- HANDLE hm;
- long cs;
+ HANDLE hm;
+ long cs;
afsi_log("%d buffers being added to the existing cache of size %d",
nbuffers, buf_nbuffers);
return CM_ERROR_INVAL;
}
- /*
- * Cache file mapping constrained by
- * system allocation granularity;
- * round up, assuming granularity is a power of two;
- * assume existing cache size is already rounded
- */
- cs = nbuffers * buf_bufferSize;
- cs = (cs + (sysInfo.dwAllocationGranularity - 1))
- & ~(sysInfo.dwAllocationGranularity - 1);
- if (cs != nbuffers * buf_bufferSize) {
- nbuffers = cs / buf_bufferSize;
- }
-
- /* Reserve additional buffer space by remapping cache file */
- hm = CreateFileMapping(CacheHandle,
- NULL,
- PAGE_READWRITE,
- 0, (buf_nbuffers + nbuffers) * buf_bufferSize,
- NULL);
- if (hm == NULL) {
- if (GetLastError() == ERROR_DISK_FULL)
- return CM_ERROR_TOOMANYBUFS;
- else
- return CM_ERROR_INVAL;
- }
- data = MapViewOfFile(hm,
- FILE_MAP_ALL_ACCESS,
- 0, buf_nbuffers * buf_bufferSize,
- nbuffers * buf_bufferSize);
- if (data == NULL) {
- CloseHandle(hm);
- return CM_ERROR_INVAL;
- }
- CloseHandle(hm);
+ /*
+ * Cache file mapping constrained by
+ * system allocation granularity;
+ * round up, assuming granularity is a power of two;
+ * assume existing cache size is already rounded
+ */
+ cs = nbuffers * buf_bufferSize;
+ cs = (cs + (sysInfo.dwAllocationGranularity - 1))
+ & ~(sysInfo.dwAllocationGranularity - 1);
+ if (cs != nbuffers * buf_bufferSize) {
+ nbuffers = cs / buf_bufferSize;
+ }
+
+ /* Reserve additional buffer space by remapping cache file */
+ hm = CreateFileMapping(CacheHandle,
+ NULL,
+ PAGE_READWRITE,
+ 0, (buf_nbuffers + nbuffers) * buf_bufferSize,
+ NULL);
+ if (hm == NULL) {
+ if (GetLastError() == ERROR_DISK_FULL)
+ return CM_ERROR_TOOMANYBUFS;
+ else
+ return CM_ERROR_INVAL;
+ }
+ data = MapViewOfFile(hm,
+ FILE_MAP_ALL_ACCESS,
+ 0, buf_nbuffers * buf_bufferSize,
+ nbuffers * buf_bufferSize);
+ if (data == NULL) {
+ CloseHandle(hm);
+ return CM_ERROR_INVAL;
+ }
+ CloseHandle(hm);
#else
- data = malloc(buf_nbuffers * buf_bufferSize);
+ data = malloc(buf_nbuffers * buf_bufferSize);
#endif /* DJGPP */
- /* Create buffer headers and put in free list */
- bp = malloc(nbuffers * sizeof(*bp));
+ /* Create buffer headers and put in free list */
+ bp = malloc(nbuffers * sizeof(*bp));
- for(i=0; i<nbuffers; i++) {
- memset(bp, 0, sizeof(*bp));
+ for(i=0; i<nbuffers; i++) {
+ memset(bp, 0, sizeof(*bp));
- lock_InitializeMutex(&bp->mx, "cm_buf_t");
+ lock_InitializeMutex(&bp->mx, "cm_buf_t");
- /* grab appropriate number of bytes from aligned zone */
- bp->datap = data;
+ /* grab appropriate number of bytes from aligned zone */
+ bp->datap = data;
- bp->flags |= CM_BUF_INLRU;
-
- lock_ObtainWrite(&buf_globalLock);
- /* note that buf_allp chain is covered by buf_globalLock now */
- bp->allp = buf_allp;
- buf_allp = bp;
- osi_QAdd((osi_queue_t **) &buf_freeListp, &bp->q);
- if (!buf_freeListEndp) buf_freeListEndp = bp;
- buf_nbuffers++;
- lock_ReleaseWrite(&buf_globalLock);
+ bp->flags |= CM_BUF_INLRU;
+
+ lock_ObtainWrite(&buf_globalLock);
+ /* note that buf_allp chain is covered by buf_globalLock now */
+ bp->allp = buf_allp;
+ buf_allp = bp;
+ osi_QAdd((osi_queue_t **) &buf_freeListp, &bp->q);
+ if (!buf_freeListEndp) buf_freeListEndp = bp;
+ buf_nbuffers++;
+ lock_ReleaseWrite(&buf_globalLock);
- bp++;
- data += buf_bufferSize;
+ bp++;
+ data += buf_bufferSize;
- } /* for loop over all buffers */
+ } /* for loop over all buffers */
- return 0;
-}
+ return 0;
+}
/* interface to set the number of buffers to an exact figure.
* Called with no locks held.
return CM_ERROR_INVAL;
if (nbuffers == buf_nbuffers)
return 0;
- else if (nbuffers > buf_nbuffers)
- return buf_AddBuffers(nbuffers - buf_nbuffers);
+ else if (nbuffers > buf_nbuffers)
+ return buf_AddBuffers(nbuffers - buf_nbuffers);
else
return CM_ERROR_INVAL;
}
/* release a buffer. Buffer must be referenced, but unlocked. */
void buf_Release(cm_buf_t *bp)
{
- lock_ObtainWrite(&buf_globalLock);
- buf_LockedRelease(bp);
- lock_ReleaseWrite(&buf_globalLock);
+ lock_ObtainWrite(&buf_globalLock);
+ buf_LockedRelease(bp);
+ lock_ReleaseWrite(&buf_globalLock);
}
/* wait for reading or writing to clear; called with write-locked
*/
void buf_WaitIO(cm_buf_t *bp)
{
- while (1) {
- /* if no IO is happening, we're done */
- if (!(bp->flags & (CM_BUF_READING | CM_BUF_WRITING)))
- break;
+ while (1) {
+ /* if no IO is happening, we're done */
+ if (!(bp->flags & (CM_BUF_READING | CM_BUF_WRITING)))
+ break;
/* otherwise I/O is happening, but some other thread is waiting for
* the I/O already. Wait for that guy to figure out what happened,
* the I/O to complete. Do so.
*/
if (bp->flags & CM_BUF_WAITING) {
- bp->flags &= ~CM_BUF_WAITING;
+ bp->flags &= ~CM_BUF_WAITING;
osi_Wakeup((long) bp);
}
osi_Log1(buf_logp, "WaitIO finished wait for bp 0x%x", (long) bp);
/* code to drop reference count while holding buf_globalLock */
void buf_LockedRelease(cm_buf_t *bp)
{
- /* ensure that we're in the LRU queue if our ref count is 0 */
- osi_assert(bp->refCount > 0);
- if (--bp->refCount == 0) {
- if (!(bp->flags & CM_BUF_INLRU)) {
- osi_QAdd((osi_queue_t **) &buf_freeListp, &bp->q);
-
- /* watch for transition from empty to one element */
- if (!buf_freeListEndp)
- buf_freeListEndp = buf_freeListp;
- bp->flags |= CM_BUF_INLRU;
- }
+ /* ensure that we're in the LRU queue if our ref count is 0 */
+ osi_assert(bp->refCount > 0);
+ if (--bp->refCount == 0) {
+ if (!(bp->flags & CM_BUF_INLRU)) {
+ osi_QAdd((osi_queue_t **) &buf_freeListp, &bp->q);
+
+ /* watch for transition from empty to one element */
+ if (!buf_freeListEndp)
+ buf_freeListEndp = buf_freeListp;
+ bp->flags |= CM_BUF_INLRU;
}
-}
+ }
+}
/* find a buffer, if any, for a particular file ID and offset. Assumes
* that buf_globalLock is write locked when called.
*/
cm_buf_t *buf_LockedFind(struct cm_scache *scp, osi_hyper_t *offsetp)
{
- long i;
- cm_buf_t *bp;
-
- i = BUF_HASH(&scp->fid, offsetp);
- for(bp = buf_hashTablepp[i]; bp; bp=bp->hashp) {
- if (cm_FidCmp(&scp->fid, &bp->fid) == 0
- && offsetp->LowPart == bp->offset.LowPart
- && offsetp->HighPart == bp->offset.HighPart) {
- bp->refCount++;
- break;
- }
+ long i;
+ cm_buf_t *bp;
+
+ i = BUF_HASH(&scp->fid, offsetp);
+ for(bp = buf_hashTablepp[i]; bp; bp=bp->hashp) {
+ if (cm_FidCmp(&scp->fid, &bp->fid) == 0
+ && offsetp->LowPart == bp->offset.LowPart
+ && offsetp->HighPart == bp->offset.HighPart) {
+ bp->refCount++;
+ break;
}
+ }
- /* return whatever we found, if anything */
- return bp;
+ /* return whatever we found, if anything */
+ return bp;
}
/* find a buffer with offset *offsetp for vnode *scp. Called
*/
cm_buf_t *buf_Find(struct cm_scache *scp, osi_hyper_t *offsetp)
{
- cm_buf_t *bp;
+ cm_buf_t *bp;
- lock_ObtainWrite(&buf_globalLock);
- bp = buf_LockedFind(scp, offsetp);
- lock_ReleaseWrite(&buf_globalLock);
+ lock_ObtainWrite(&buf_globalLock);
+ bp = buf_LockedFind(scp, offsetp);
+ lock_ReleaseWrite(&buf_globalLock);
- return bp;
-}
+ return bp;
+}
/* start cleaning I/O on this buffer. Buffer must be write locked, and is returned
* write-locked.
*/
void buf_LockedCleanAsync(cm_buf_t *bp, cm_req_t *reqp)
{
- long code;
+ long code;
- code = 0;
- while ((bp->flags & (CM_BUF_WRITING | CM_BUF_DIRTY)) == CM_BUF_DIRTY) {
- lock_ReleaseMutex(&bp->mx);
+ code = 0;
+ while ((bp->flags & (CM_BUF_WRITING | CM_BUF_DIRTY)) == CM_BUF_DIRTY) {
+ lock_ReleaseMutex(&bp->mx);
- code = (*cm_buf_opsp->Writep)(&bp->fid, &bp->offset,
- buf_bufferSize, 0, bp->userp,
- reqp);
+ code = (*cm_buf_opsp->Writep)(&bp->fid, &bp->offset,
+ buf_bufferSize, 0, bp->userp,
+ reqp);
- lock_ObtainMutex(&bp->mx);
- if (code) break;
+ lock_ObtainMutex(&bp->mx);
+ if (code)
+ break;
#ifdef DISKCACHE95
- /* Disk cache support */
- /* write buffer to disk cache (synchronous for now) */
- diskcache_Update(bp->dcp, bp->datap, buf_bufferSize, bp->dataVersion);
+ /* Disk cache support */
+ /* write buffer to disk cache (synchronous for now) */
+ diskcache_Update(bp->dcp, bp->datap, buf_bufferSize, bp->dataVersion);
#endif /* DISKCACHE95 */
- };
+ };
- /* do logging after call to GetLastError, or else */
- osi_Log2(buf_logp, "buf_CleanAsync starts I/O on 0x%x, done=%d", bp, code);
+ /* do logging after call to GetLastError, or else */
+ osi_Log2(buf_logp, "buf_CleanAsync starts I/O on 0x%x, done=%d", bp, code);
- /* if someone was waiting for the I/O that just completed or failed,
- * wake them up.
- */
- if (bp->flags & CM_BUF_WAITING) {
- /* turn off flags and wakeup users */
- bp->flags &= ~CM_BUF_WAITING;
- osi_Wakeup((long) bp);
- }
+ /* if someone was waiting for the I/O that just completed or failed,
+ * wake them up.
+ */
+ if (bp->flags & CM_BUF_WAITING) {
+ /* turn off flags and wakeup users */
+ bp->flags &= ~CM_BUF_WAITING;
+ osi_Wakeup((long) bp);
+ }
}
/* Called with a zero-ref count buffer and with the buf_globalLock write locked.
*/
void buf_Recycle(cm_buf_t *bp)
{
- int i;
- cm_buf_t **lbpp;
- cm_buf_t *tbp;
- cm_buf_t *prevBp, *nextBp;
-
- /* if we get here, we know that the buffer still has a 0 ref count,
- * and that it is clean and has no currently pending I/O. This is
- * the dude to return.
- * Remember that as long as the ref count is 0, we know that we won't
- * have any lock conflicts, so we can grab the buffer lock out of
- * order in the locking hierarchy.
- */
+ int i;
+ cm_buf_t **lbpp;
+ cm_buf_t *tbp;
+ cm_buf_t *prevBp, *nextBp;
+
+ /* if we get here, we know that the buffer still has a 0 ref count,
+ * and that it is clean and has no currently pending I/O. This is
+ * the dude to return.
+ * Remember that as long as the ref count is 0, we know that we won't
+ * have any lock conflicts, so we can grab the buffer lock out of
+ * order in the locking hierarchy.
+ */
osi_Log2( buf_logp, "buf_Recycle recycles 0x%x, off 0x%x",
- bp, bp->offset.LowPart);
+ bp, bp->offset.LowPart);
- osi_assert(bp->refCount == 0);
- osi_assert(!(bp->flags & (CM_BUF_READING | CM_BUF_WRITING | CM_BUF_DIRTY)));
- lock_AssertWrite(&buf_globalLock);
+ osi_assert(bp->refCount == 0);
+ osi_assert(!(bp->flags & (CM_BUF_READING | CM_BUF_WRITING | CM_BUF_DIRTY)));
+ lock_AssertWrite(&buf_globalLock);
- if (bp->flags & CM_BUF_INHASH) {
- /* Remove from hash */
+ if (bp->flags & CM_BUF_INHASH) {
+ /* Remove from hash */
- i = BUF_HASH(&bp->fid, &bp->offset);
- lbpp = &(buf_hashTablepp[i]);
- for(tbp = *lbpp; tbp; lbpp = &tbp->hashp, tbp = *lbpp) {
- if (tbp == bp) break;
- }
+ i = BUF_HASH(&bp->fid, &bp->offset);
+ lbpp = &(buf_hashTablepp[i]);
+ for(tbp = *lbpp; tbp; lbpp = &tbp->hashp, tbp = *lbpp) {
+ if (tbp == bp) break;
+ }
- /* we better find it */
- osi_assertx(tbp != NULL, "buf_GetNewLocked: hash table screwup");
+ /* we better find it */
+ osi_assertx(tbp != NULL, "buf_GetNewLocked: hash table screwup");
- *lbpp = bp->hashp; /* hash out */
+ *lbpp = bp->hashp; /* hash out */
- /* Remove from file hash */
+ /* Remove from file hash */
- i = BUF_FILEHASH(&bp->fid);
- prevBp = bp->fileHashBackp;
- nextBp = bp->fileHashp;
- if (prevBp)
- prevBp->fileHashp = nextBp;
- else
- buf_fileHashTablepp[i] = nextBp;
- if (nextBp)
- nextBp->fileHashBackp = prevBp;
+ i = BUF_FILEHASH(&bp->fid);
+ prevBp = bp->fileHashBackp;
+ nextBp = bp->fileHashp;
+ if (prevBp)
+ prevBp->fileHashp = nextBp;
+ else
+ buf_fileHashTablepp[i] = nextBp;
+ if (nextBp)
+ nextBp->fileHashBackp = prevBp;
- bp->flags &= ~CM_BUF_INHASH;
- }
-
- /* bump the soft reference counter now, to invalidate softRefs; no
- * wakeup is required since people don't sleep waiting for this
- * counter to change.
- */
- bp->idCounter++;
+ bp->flags &= ~CM_BUF_INHASH;
+ }
- /* make the fid unrecognizable */
- memset(&bp->fid, 0, sizeof(bp->fid));
-}
+ /* bump the soft reference counter now, to invalidate softRefs; no
+ * wakeup is required since people don't sleep waiting for this
+ * counter to change.
+ */
+ bp->idCounter++;
+
+ /* make the fid unrecognizable */
+ memset(&bp->fid, 0, sizeof(bp->fid));
+}
/* recycle a buffer, removing it from the free list, hashing in its new identity
* and returning it write-locked so that no one can use it. Called without
*/
long buf_GetNewLocked(struct cm_scache *scp, osi_hyper_t *offsetp, cm_buf_t **bufpp)
{
- cm_buf_t *bp; /* buffer we're dealing with */
- cm_buf_t *nextBp; /* next buffer in file hash chain */
- long i; /* temp */
- cm_req_t req;
-
- cm_InitReq(&req); /* just in case */
-
- while(1) {
-retry:
- lock_ObtainWrite(&buf_globalLock);
- /* check to see if we lost the race */
- if (scp) {
- if (bp = buf_LockedFind(scp, offsetp)) {
- bp->refCount--;
- lock_ReleaseWrite(&buf_globalLock);
- return CM_BUF_EXISTS;
- }
- }
-
- /* for debugging, assert free list isn't empty, although we
- * really should try waiting for a running tranasction to finish
- * instead of this; or better, we should have a transaction
- * throttler prevent us from entering this situation.
- */
- osi_assertx(buf_freeListEndp != NULL, "buf_GetNewLocked: no free buffers");
+ cm_buf_t *bp; /* buffer we're dealing with */
+ cm_buf_t *nextBp; /* next buffer in file hash chain */
+ long i; /* temp */
+ cm_req_t req;
- /* look at all buffers in free list, some of which may temp.
- * have high refcounts and which then should be skipped,
- * starting cleaning I/O for those which are dirty. If we find
- * a clean buffer, we rehash it, lock it and return it.
- */
- for(bp = buf_freeListEndp; bp; bp=(cm_buf_t *) osi_QPrev(&bp->q)) {
- /* check to see if it really has zero ref count. This
- * code can bump refcounts, at least, so it may not be
- * zero.
- */
- if (bp->refCount > 0) continue;
-
- /* we don't have to lock buffer itself, since the ref
- * count is 0 and we know it will stay zero as long as
- * we hold the global lock.
- */
-
- /* don't recycle someone in our own chunk */
- if (!cm_FidCmp(&bp->fid, &scp->fid)
- && (bp->offset.LowPart & (-cm_chunkSize))
- == (offsetp->LowPart & (-cm_chunkSize)))
- continue;
-
- /* if this page is being filled (!) or cleaned, see if
- * the I/O has completed. If not, skip it, otherwise
- * do the final processing for the I/O.
- */
- if (bp->flags & (CM_BUF_READING | CM_BUF_WRITING)) {
- /* probably shouldn't do this much work while
- * holding the big lock? Watch for contention
- * here.
- */
- continue;
- }
-
- if (bp->flags & CM_BUF_DIRTY) {
- /* if the buffer is dirty, start cleaning it and
- * move on to the next buffer. We do this with
- * just the lock required to minimize contention
- * on the big lock.
- */
- bp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
-
- /* grab required lock and clean; this only
- * starts the I/O. By the time we're back,
- * it'll still be marked dirty, but it will also
- * have the WRITING flag set, so we won't get
- * back here.
- */
- buf_CleanAsync(bp, &req);
-
- /* now put it back and go around again */
- buf_Release(bp);
- goto retry;
- }
-
- /* if we get here, we know that the buffer still has a 0
- * ref count, and that it is clean and has no currently
- * pending I/O. This is the dude to return.
- * Remember that as long as the ref count is 0, we know
- * that we won't have any lock conflicts, so we can grab
- * the buffer lock out of order in the locking hierarchy.
- */
- buf_Recycle(bp);
-
- /* clean up junk flags */
- bp->flags &= ~(CM_BUF_EOF | CM_BUF_ERROR);
- bp->dataVersion = -1; /* unknown so far */
-
- /* now hash in as our new buffer, and give it the
- * appropriate label, if requested.
- */
- if (scp) {
- bp->flags |= CM_BUF_INHASH;
- bp->fid = scp->fid;
- bp->offset = *offsetp;
- i = BUF_HASH(&scp->fid, offsetp);
- bp->hashp = buf_hashTablepp[i];
- buf_hashTablepp[i] = bp;
- i = BUF_FILEHASH(&scp->fid);
- nextBp = buf_fileHashTablepp[i];
- bp->fileHashp = nextBp;
- bp->fileHashBackp = NULL;
- if (nextBp)
- nextBp->fileHashBackp = bp;
- buf_fileHashTablepp[i] = bp;
- }
+ cm_InitReq(&req); /* just in case */
+
+ while(1) {
+ retry:
+ lock_ObtainWrite(&buf_globalLock);
+ /* check to see if we lost the race */
+ if (scp) {
+ if (bp = buf_LockedFind(scp, offsetp)) {
+ bp->refCount--;
+ lock_ReleaseWrite(&buf_globalLock);
+ return CM_BUF_EXISTS;
+ }
+ }
+
+ /* for debugging, assert free list isn't empty, although we
+ * really should try waiting for a running tranasction to finish
+ * instead of this; or better, we should have a transaction
+ * throttler prevent us from entering this situation.
+ */
+ osi_assertx(buf_freeListEndp != NULL, "buf_GetNewLocked: no free buffers");
+
+ /* look at all buffers in free list, some of which may temp.
+ * have high refcounts and which then should be skipped,
+ * starting cleaning I/O for those which are dirty. If we find
+ * a clean buffer, we rehash it, lock it and return it.
+ */
+ for(bp = buf_freeListEndp; bp; bp=(cm_buf_t *) osi_QPrev(&bp->q)) {
+ /* check to see if it really has zero ref count. This
+ * code can bump refcounts, at least, so it may not be
+ * zero.
+ */
+ if (bp->refCount > 0)
+ continue;
- /* prepare to return it. Start by giving it a good
- * refcount */
- bp->refCount = 1;
+ /* we don't have to lock buffer itself, since the ref
+ * count is 0 and we know it will stay zero as long as
+ * we hold the global lock.
+ */
+
+ /* don't recycle someone in our own chunk */
+ if (!cm_FidCmp(&bp->fid, &scp->fid)
+ && (bp->offset.LowPart & (-cm_chunkSize))
+ == (offsetp->LowPart & (-cm_chunkSize)))
+ continue;
+
+ /* if this page is being filled (!) or cleaned, see if
+ * the I/O has completed. If not, skip it, otherwise
+ * do the final processing for the I/O.
+ */
+ if (bp->flags & (CM_BUF_READING | CM_BUF_WRITING)) {
+ /* probably shouldn't do this much work while
+ * holding the big lock? Watch for contention
+ * here.
+ */
+ continue;
+ }
- /* and since it has a non-zero ref count, we should move
- * it from the lru queue. It better be still there,
- * since we've held the global (big) lock since we found
- * it there.
- */
- osi_assertx(bp->flags & CM_BUF_INLRU,
- "buf_GetNewLocked: LRU screwup");
- if (buf_freeListEndp == bp) {
- /* we're the last guy in this queue, so maintain it */
- buf_freeListEndp = (cm_buf_t *) osi_QPrev(&bp->q);
- }
- osi_QRemove((osi_queue_t **) &buf_freeListp, &bp->q);
- bp->flags &= ~CM_BUF_INLRU;
+ if (bp->flags & CM_BUF_DIRTY) {
+ /* if the buffer is dirty, start cleaning it and
+ * move on to the next buffer. We do this with
+ * just the lock required to minimize contention
+ * on the big lock.
+ */
+ bp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
+
+ /* grab required lock and clean; this only
+ * starts the I/O. By the time we're back,
+ * it'll still be marked dirty, but it will also
+ * have the WRITING flag set, so we won't get
+ * back here.
+ */
+ buf_CleanAsync(bp, &req);
+
+ /* now put it back and go around again */
+ buf_Release(bp);
+ goto retry;
+ }
+
+ /* if we get here, we know that the buffer still has a 0
+ * ref count, and that it is clean and has no currently
+ * pending I/O. This is the dude to return.
+ * Remember that as long as the ref count is 0, we know
+ * that we won't have any lock conflicts, so we can grab
+ * the buffer lock out of order in the locking hierarchy.
+ */
+ buf_Recycle(bp);
+
+ /* clean up junk flags */
+ bp->flags &= ~(CM_BUF_EOF | CM_BUF_ERROR);
+ bp->dataVersion = -1; /* unknown so far */
+
+ /* now hash in as our new buffer, and give it the
+ * appropriate label, if requested.
+ */
+ if (scp) {
+ bp->flags |= CM_BUF_INHASH;
+ bp->fid = scp->fid;
+ bp->offset = *offsetp;
+ i = BUF_HASH(&scp->fid, offsetp);
+ bp->hashp = buf_hashTablepp[i];
+ buf_hashTablepp[i] = bp;
+ i = BUF_FILEHASH(&scp->fid);
+ nextBp = buf_fileHashTablepp[i];
+ bp->fileHashp = nextBp;
+ bp->fileHashBackp = NULL;
+ if (nextBp)
+ nextBp->fileHashBackp = bp;
+ buf_fileHashTablepp[i] = bp;
+ }
+
+ /* prepare to return it. Start by giving it a good
+ * refcount */
+ bp->refCount = 1;
- /* finally, grab the mutex so that people don't use it
- * before the caller fills it with data. Again, no one
- * should have been able to get to this dude to lock it.
- */
- osi_assertx(lock_TryMutex(&bp->mx),
- "buf_GetNewLocked: TryMutex failed");
-
- lock_ReleaseWrite(&buf_globalLock);
- *bufpp = bp;
- return 0;
- } /* for all buffers in lru queue */
- lock_ReleaseWrite(&buf_globalLock);
- } /* while loop over everything */
- /* not reached */
+ /* and since it has a non-zero ref count, we should move
+ * it from the lru queue. It better be still there,
+ * since we've held the global (big) lock since we found
+ * it there.
+ */
+ osi_assertx(bp->flags & CM_BUF_INLRU,
+ "buf_GetNewLocked: LRU screwup");
+ if (buf_freeListEndp == bp) {
+ /* we're the last guy in this queue, so maintain it */
+ buf_freeListEndp = (cm_buf_t *) osi_QPrev(&bp->q);
+ }
+ osi_QRemove((osi_queue_t **) &buf_freeListp, &bp->q);
+ bp->flags &= ~CM_BUF_INLRU;
+
+ /* finally, grab the mutex so that people don't use it
+ * before the caller fills it with data. Again, no one
+ * should have been able to get to this dude to lock it.
+ */
+ osi_assertx(lock_TryMutex(&bp->mx),
+ "buf_GetNewLocked: TryMutex failed");
+
+ lock_ReleaseWrite(&buf_globalLock);
+ *bufpp = bp;
+ return 0;
+ } /* for all buffers in lru queue */
+ lock_ReleaseWrite(&buf_globalLock);
+ } /* while loop over everything */
+ /* not reached */
} /* the proc */
/* get a page, returning it held but unlocked. Doesn't fill in the page
*/
long buf_GetNew(struct cm_scache *scp, osi_hyper_t *offsetp, cm_buf_t **bufpp)
{
- cm_buf_t *bp;
- long code;
- osi_hyper_t pageOffset;
- int created;
-
- created = 0;
- pageOffset.HighPart = offsetp->HighPart;
- pageOffset.LowPart = offsetp->LowPart & ~(buf_bufferSize-1);
- while (1) {
- lock_ObtainWrite(&buf_globalLock);
- bp = buf_LockedFind(scp, &pageOffset);
- lock_ReleaseWrite(&buf_globalLock);
- if (bp) {
- /* lock it and break out */
- lock_ObtainMutex(&bp->mx);
- break;
- }
-
- /* otherwise, we have to create a page */
- code = buf_GetNewLocked(scp, &pageOffset, &bp);
+ cm_buf_t *bp;
+ long code;
+ osi_hyper_t pageOffset;
+ int created;
+
+ created = 0;
+ pageOffset.HighPart = offsetp->HighPart;
+ pageOffset.LowPart = offsetp->LowPart & ~(buf_bufferSize-1);
+ while (1) {
+ lock_ObtainWrite(&buf_globalLock);
+ bp = buf_LockedFind(scp, &pageOffset);
+ lock_ReleaseWrite(&buf_globalLock);
+ if (bp) {
+ /* lock it and break out */
+ lock_ObtainMutex(&bp->mx);
+ break;
+ }
- /* check if the buffer was created in a race condition branch.
- * If so, go around so we can hold a reference to it.
- */
- if (code == CM_BUF_EXISTS) continue;
-
- /* something else went wrong */
- if (code != 0) return code;
-
- /* otherwise, we have a locked buffer that we just created */
- created = 1;
- break;
- } /* big while loop */
-
- /* wait for reads */
- if (bp->flags & CM_BUF_READING)
- buf_WaitIO(bp);
+ /* otherwise, we have to create a page */
+ code = buf_GetNewLocked(scp, &pageOffset, &bp);
- /* once it has been read once, we can unlock it and return it, still
- * with its refcount held.
+ /* check if the buffer was created in a race condition branch.
+ * If so, go around so we can hold a reference to it.
*/
- lock_ReleaseMutex(&bp->mx);
- *bufpp = bp;
- osi_Log3(buf_logp, "buf_GetNew returning bp 0x%x for file 0x%x, offset 0x%x",
- bp, (long) scp, offsetp->LowPart);
- return 0;
+ if (code == CM_BUF_EXISTS)
+ continue;
+
+ /* something else went wrong */
+ if (code != 0)
+ return code;
+
+ /* otherwise, we have a locked buffer that we just created */
+ created = 1;
+ break;
+ } /* big while loop */
+
+ /* wait for reads */
+ if (bp->flags & CM_BUF_READING)
+ buf_WaitIO(bp);
+
+ /* once it has been read once, we can unlock it and return it, still
+ * with its refcount held.
+ */
+ lock_ReleaseMutex(&bp->mx);
+ *bufpp = bp;
+ osi_Log3(buf_logp, "buf_GetNew returning bp 0x%x for file 0x%x, offset 0x%x",
+ bp, (long) scp, offsetp->LowPart);
+ return 0;
}
/* get a page, returning it held but unlocked. Make sure it is complete */
long buf_Get(struct cm_scache *scp, osi_hyper_t *offsetp, cm_buf_t **bufpp)
{
- cm_buf_t *bp;
- long code;
- osi_hyper_t pageOffset;
- unsigned long tcount;
- int created;
+ cm_buf_t *bp;
+ long code;
+ osi_hyper_t pageOffset;
+ unsigned long tcount;
+ int created;
#ifdef DISKCACHE95
- cm_diskcache_t *dcp;
+ cm_diskcache_t *dcp;
#endif /* DISKCACHE95 */
- created = 0;
- pageOffset.HighPart = offsetp->HighPart;
- pageOffset.LowPart = offsetp->LowPart & ~(buf_bufferSize-1);
- while (1) {
- lock_ObtainWrite(&buf_globalLock);
- bp = buf_LockedFind(scp, &pageOffset);
- lock_ReleaseWrite(&buf_globalLock);
- if (bp) {
- /* lock it and break out */
- lock_ObtainMutex(&bp->mx);
- break;
+ created = 0;
+ pageOffset.HighPart = offsetp->HighPart;
+ pageOffset.LowPart = offsetp->LowPart & ~(buf_bufferSize-1);
+ while (1) {
+ lock_ObtainWrite(&buf_globalLock);
+ bp = buf_LockedFind(scp, &pageOffset);
+ lock_ReleaseWrite(&buf_globalLock);
+ if (bp) {
+ /* lock it and break out */
+ lock_ObtainMutex(&bp->mx);
+ break;
#ifdef DISKCACHE95
- /* touch disk chunk to update LRU info */
- diskcache_Touch(bp->dcp);
+ /* touch disk chunk to update LRU info */
+ diskcache_Touch(bp->dcp);
#endif /* DISKCACHE95 */
- }
-
- /* otherwise, we have to create a page */
- code = buf_GetNewLocked(scp, &pageOffset, &bp);
+ }
- /* check if the buffer was created in a race condition branch.
- * If so, go around so we can hold a reference to it.
- */
- if (code == CM_BUF_EXISTS) continue;
-
- /* something else went wrong */
- if (code != 0) return code;
-
- /* otherwise, we have a locked buffer that we just created */
- created = 1;
- break;
- } /* big while loop */
-
- /* if we get here, we have a locked buffer that may have just been
- * created, in which case it needs to be filled with data.
+ /* otherwise, we have to create a page */
+ code = buf_GetNewLocked(scp, &pageOffset, &bp);
+
+ /* check if the buffer was created in a race condition branch.
+ * If so, go around so we can hold a reference to it.
*/
- if (created) {
- /* load the page; freshly created pages should be idle */
- osi_assert(!(bp->flags & (CM_BUF_READING | CM_BUF_WRITING)));
+ if (code == CM_BUF_EXISTS)
+ continue;
+
+ /* something else went wrong */
+ if (code != 0)
+ return code;
+
+ /* otherwise, we have a locked buffer that we just created */
+ created = 1;
+ break;
+ } /* big while loop */
+
+ /* if we get here, we have a locked buffer that may have just been
+ * created, in which case it needs to be filled with data.
+ */
+ if (created) {
+ /* load the page; freshly created pages should be idle */
+ osi_assert(!(bp->flags & (CM_BUF_READING | CM_BUF_WRITING)));
- /* setup offset, event */
+ /* setup offset, event */
#ifndef DJGPP /* doesn't seem to be used */
- bp->over.Offset = bp->offset.LowPart;
- bp->over.OffsetHigh = bp->offset.HighPart;
+ bp->over.Offset = bp->offset.LowPart;
+ bp->over.OffsetHigh = bp->offset.HighPart;
#endif /* !DJGPP */
- /* start the I/O; may drop lock */
- bp->flags |= CM_BUF_READING;
- code = (*cm_buf_opsp->Readp)(bp, buf_bufferSize, &tcount, NULL);
+ /* start the I/O; may drop lock */
+ bp->flags |= CM_BUF_READING;
+ code = (*cm_buf_opsp->Readp)(bp, buf_bufferSize, &tcount, NULL);
#ifdef DISKCACHE95
- code = diskcache_Get(&bp->fid, &bp->offset, bp->datap, buf_bufferSize, &bp->dataVersion, &tcount, &dcp);
- bp->dcp = dcp; /* pointer to disk cache struct. */
+ code = diskcache_Get(&bp->fid, &bp->offset, bp->datap, buf_bufferSize, &bp->dataVersion, &tcount, &dcp);
+ bp->dcp = dcp; /* pointer to disk cache struct. */
#endif /* DISKCACHE95 */
- if (code != 0) {
- /* failure or queued */
+ if (code != 0) {
+ /* failure or queued */
#ifndef DJGPP /* cm_bufRead always returns 0 */
- if (code != ERROR_IO_PENDING) {
+ if (code != ERROR_IO_PENDING) {
#endif
- bp->error = code;
- bp->flags |= CM_BUF_ERROR;
- bp->flags &= ~CM_BUF_READING;
- if (bp->flags & CM_BUF_WAITING) {
- bp->flags &= ~CM_BUF_WAITING;
- osi_Wakeup((long) bp);
- }
- lock_ReleaseMutex(&bp->mx);
- buf_Release(bp);
- return code;
+ bp->error = code;
+ bp->flags |= CM_BUF_ERROR;
+ bp->flags &= ~CM_BUF_READING;
+ if (bp->flags & CM_BUF_WAITING) {
+ bp->flags &= ~CM_BUF_WAITING;
+ osi_Wakeup((long) bp);
+ }
+ lock_ReleaseMutex(&bp->mx);
+ buf_Release(bp);
+ return code;
#ifndef DJGPP
- }
+ }
#endif
- } else {
- /* otherwise, I/O completed instantly and we're done, except
- * for padding the xfr out with 0s and checking for EOF
- */
- if (tcount < (unsigned long) buf_bufferSize) {
- memset(bp->datap+tcount, 0, buf_bufferSize - tcount);
- if (tcount == 0)
- bp->flags |= CM_BUF_EOF;
- }
- bp->flags &= ~CM_BUF_READING;
- if (bp->flags & CM_BUF_WAITING) {
- bp->flags &= ~CM_BUF_WAITING;
- osi_Wakeup((long) bp);
- }
- }
-
- } /* if created */
-
- /* wait for reads, either that which we started above, or that someone
- * else started. We don't care if we return a buffer being cleaned.
- */
- if (bp->flags & CM_BUF_READING)
- buf_WaitIO(bp);
+ } else {
+ /* otherwise, I/O completed instantly and we're done, except
+ * for padding the xfr out with 0s and checking for EOF
+ */
+ if (tcount < (unsigned long) buf_bufferSize) {
+ memset(bp->datap+tcount, 0, buf_bufferSize - tcount);
+ if (tcount == 0)
+ bp->flags |= CM_BUF_EOF;
+ }
+ bp->flags &= ~CM_BUF_READING;
+ if (bp->flags & CM_BUF_WAITING) {
+ bp->flags &= ~CM_BUF_WAITING;
+ osi_Wakeup((long) bp);
+ }
+ }
- /* once it has been read once, we can unlock it and return it, still
- * with its refcount held.
- */
- lock_ReleaseMutex(&bp->mx);
- *bufpp = bp;
+ } /* if created */
- /* now remove from queue; will be put in at the head (farthest from
- * being recycled) when we're done in buf_Release.
- */
- lock_ObtainWrite(&buf_globalLock);
- if (bp->flags & CM_BUF_INLRU) {
- if (buf_freeListEndp == bp)
- buf_freeListEndp = (cm_buf_t *) osi_QPrev(&bp->q);
- osi_QRemove((osi_queue_t **) &buf_freeListp, &bp->q);
- bp->flags &= ~CM_BUF_INLRU;
- }
- lock_ReleaseWrite(&buf_globalLock);
+ /* wait for reads, either that which we started above, or that someone
+ * else started. We don't care if we return a buffer being cleaned.
+ */
+ if (bp->flags & CM_BUF_READING)
+ buf_WaitIO(bp);
- osi_Log3(buf_logp, "buf_Get returning bp 0x%x for file 0x%x, offset 0x%x",
- bp, (long) scp, offsetp->LowPart);
- return 0;
+ /* once it has been read once, we can unlock it and return it, still
+ * with its refcount held.
+ */
+ lock_ReleaseMutex(&bp->mx);
+ *bufpp = bp;
+
+ /* now remove from queue; will be put in at the head (farthest from
+ * being recycled) when we're done in buf_Release.
+ */
+ lock_ObtainWrite(&buf_globalLock);
+ if (bp->flags & CM_BUF_INLRU) {
+ if (buf_freeListEndp == bp)
+ buf_freeListEndp = (cm_buf_t *) osi_QPrev(&bp->q);
+ osi_QRemove((osi_queue_t **) &buf_freeListp, &bp->q);
+ bp->flags &= ~CM_BUF_INLRU;
+ }
+ lock_ReleaseWrite(&buf_globalLock);
+
+ osi_Log3(buf_logp, "buf_Get returning bp 0x%x for file 0x%x, offset 0x%x",
+ bp, (long) scp, offsetp->LowPart);
+ return 0;
}
/* count # of elements in the free list;
*/
long buf_CountFreeList(void)
{
- long count;
- cm_buf_t *bufp;
-
- count = 0;
- lock_ObtainRead(&buf_globalLock);
- for(bufp = buf_freeListp; bufp; bufp = (cm_buf_t *) osi_QNext(&bufp->q)) {
- /* if the buffer doesn't have an identity, or if the buffer
- * has been invalidate (by having its DV stomped upon), then
- * count it as free, since it isn't really being utilized.
- */
- if (!(bufp->flags & CM_BUF_INHASH) || bufp->dataVersion <= 0)
- count++;
- }
- lock_ReleaseRead(&buf_globalLock);
- return count;
+ long count;
+ cm_buf_t *bufp;
+
+ count = 0;
+ lock_ObtainRead(&buf_globalLock);
+ for(bufp = buf_freeListp; bufp; bufp = (cm_buf_t *) osi_QNext(&bufp->q)) {
+ /* if the buffer doesn't have an identity, or if the buffer
+ * has been invalidate (by having its DV stomped upon), then
+ * count it as free, since it isn't really being utilized.
+ */
+ if (!(bufp->flags & CM_BUF_INHASH) || bufp->dataVersion <= 0)
+ count++;
+ }
+ lock_ReleaseRead(&buf_globalLock);
+ return count;
}
/* clean a buffer synchronously */
void buf_CleanAsync(cm_buf_t *bp, cm_req_t *reqp)
{
- lock_ObtainMutex(&bp->mx);
- buf_LockedCleanAsync(bp, reqp);
- lock_ReleaseMutex(&bp->mx);
-}
+ lock_ObtainMutex(&bp->mx);
+ buf_LockedCleanAsync(bp, reqp);
+ lock_ReleaseMutex(&bp->mx);
+}
/* wait for a buffer's cleaning to finish */
void buf_CleanWait(cm_buf_t *bp)
{
- lock_ObtainMutex(&bp->mx);
- if (bp->flags & CM_BUF_WRITING) {
- buf_WaitIO(bp);
- }
- lock_ReleaseMutex(&bp->mx);
-}
+ lock_ObtainMutex(&bp->mx);
+ if (bp->flags & CM_BUF_WRITING) {
+ buf_WaitIO(bp);
+ }
+ lock_ReleaseMutex(&bp->mx);
+}
/* set the dirty flag on a buffer, and set associated write-ahead log,
* if there is one. Allow one to be added to a buffer, but not changed.
*/
void buf_SetDirty(cm_buf_t *bp)
{
- osi_assert(bp->refCount > 0);
+ osi_assert(bp->refCount > 0);
- osi_Log1(buf_logp, "buf_SetDirty 0x%x", bp);
+ osi_Log1(buf_logp, "buf_SetDirty 0x%x", bp);
- /* set dirty bit */
- bp->flags |= CM_BUF_DIRTY;
+ /* set dirty bit */
+ bp->flags |= CM_BUF_DIRTY;
- /* and turn off EOF flag, since it has associated data now */
- bp->flags &= ~CM_BUF_EOF;
+ /* and turn off EOF flag, since it has associated data now */
+ bp->flags &= ~CM_BUF_EOF;
}
/* clean all buffers, reset log pointers and invalidate all buffers.
*/
long buf_CleanAndReset(void)
{
- long i;
- cm_buf_t *bp;
- cm_req_t req;
-
- lock_ObtainWrite(&buf_globalLock);
- for(i=0; i<buf_hashSize; i++) {
- for(bp = buf_hashTablepp[i]; bp; bp = bp->hashp) {
- bp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
-
- /* now no locks are held; clean buffer and go on */
- cm_InitReq(&req);
- buf_CleanAsync(bp, &req);
- buf_CleanWait(bp);
-
- /* relock and release buffer */
- lock_ObtainWrite(&buf_globalLock);
- buf_LockedRelease(bp);
- } /* over one bucket */
- } /* for loop over all hash buckets */
-
- /* release locks */
- lock_ReleaseWrite(&buf_globalLock);
+ long i;
+ cm_buf_t *bp;
+ cm_req_t req;
- /* and we're done */
- return 0;
-}
+ lock_ObtainWrite(&buf_globalLock);
+ for(i=0; i<buf_hashSize; i++) {
+ for(bp = buf_hashTablepp[i]; bp; bp = bp->hashp) {
+ bp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
+
+ /* now no locks are held; clean buffer and go on */
+ cm_InitReq(&req);
+ buf_CleanAsync(bp, &req);
+ buf_CleanWait(bp);
+
+ /* relock and release buffer */
+ lock_ObtainWrite(&buf_globalLock);
+ buf_LockedRelease(bp);
+ } /* over one bucket */
+ } /* for loop over all hash buckets */
+
+ /* release locks */
+ lock_ReleaseWrite(&buf_globalLock);
+
+ /* and we're done */
+ return 0;
+}
/* called without global lock being held, reserves buffers for callers
* that need more than one held (not locked) at once.
*/
void buf_ReserveBuffers(long nbuffers)
{
- lock_ObtainWrite(&buf_globalLock);
- while (1) {
- if (buf_reservedBufs + nbuffers > buf_maxReservedBufs) {
- buf_reserveWaiting = 1;
- osi_Log1(buf_logp, "buf_ReserveBuffers waiting for %d bufs", nbuffers);
- osi_SleepW((long) &buf_reservedBufs, &buf_globalLock);
- lock_ObtainWrite(&buf_globalLock);
- }
- else {
- buf_reservedBufs += nbuffers;
- break;
- }
+ lock_ObtainWrite(&buf_globalLock);
+ while (1) {
+ if (buf_reservedBufs + nbuffers > buf_maxReservedBufs) {
+ buf_reserveWaiting = 1;
+ osi_Log1(buf_logp, "buf_ReserveBuffers waiting for %d bufs", nbuffers);
+ osi_SleepW((long) &buf_reservedBufs, &buf_globalLock);
+ lock_ObtainWrite(&buf_globalLock);
+ }
+ else {
+ buf_reservedBufs += nbuffers;
+ break;
}
- lock_ReleaseWrite(&buf_globalLock);
+ }
+ lock_ReleaseWrite(&buf_globalLock);
}
int buf_TryReserveBuffers(long nbuffers)
{
- int code;
-
- lock_ObtainWrite(&buf_globalLock);
- if (buf_reservedBufs + nbuffers > buf_maxReservedBufs) {
- code = 0;
- }
- else {
- buf_reservedBufs += nbuffers;
- code = 1;
- }
- lock_ReleaseWrite(&buf_globalLock);
- return code;
-}
+ int code;
+
+ lock_ObtainWrite(&buf_globalLock);
+ if (buf_reservedBufs + nbuffers > buf_maxReservedBufs) {
+ code = 0;
+ }
+ else {
+ buf_reservedBufs += nbuffers;
+ code = 1;
+ }
+ lock_ReleaseWrite(&buf_globalLock);
+ return code;
+}
/* called without global lock held, releases reservation held by
* buf_ReserveBuffers.
*/
void buf_UnreserveBuffers(long nbuffers)
{
- lock_ObtainWrite(&buf_globalLock);
- buf_reservedBufs -= nbuffers;
- if (buf_reserveWaiting) {
- buf_reserveWaiting = 0;
- osi_Wakeup((long) &buf_reservedBufs);
- }
- lock_ReleaseWrite(&buf_globalLock);
-}
+ lock_ObtainWrite(&buf_globalLock);
+ buf_reservedBufs -= nbuffers;
+ if (buf_reserveWaiting) {
+ buf_reserveWaiting = 0;
+ osi_Wakeup((long) &buf_reservedBufs);
+ }
+ lock_ReleaseWrite(&buf_globalLock);
+}
/* truncate the buffers past sizep, zeroing out the page, if we don't
* end on a page boundary.
* Requires cm_bufCreateLock to be write locked.
*/
long buf_Truncate(cm_scache_t *scp, cm_user_t *userp, cm_req_t *reqp,
- osi_hyper_t *sizep)
+ osi_hyper_t *sizep)
{
- cm_buf_t *bufp;
- cm_buf_t *nbufp; /* next buffer, if didRelease */
- osi_hyper_t bufEnd;
- long code;
- long bufferPos;
- int didRelease;
- long i;
-
- /* assert that cm_bufCreateLock is held in write mode */
- lock_AssertWrite(&scp->bufCreateLock);
-
- i = BUF_FILEHASH(&scp->fid);
-
- lock_ObtainWrite(&buf_globalLock);
- bufp = buf_fileHashTablepp[i];
- if (bufp == NULL) {
- lock_ReleaseWrite(&buf_globalLock);
- return 0;
- }
-
- bufp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
- for(; bufp; bufp = nbufp) {
- didRelease = 0;
- lock_ObtainMutex(&bufp->mx);
-
- bufEnd.HighPart = 0;
- bufEnd.LowPart = buf_bufferSize;
- bufEnd = LargeIntegerAdd(bufEnd, bufp->offset);
-
- if (cm_FidCmp(&bufp->fid, &scp->fid) == 0 &&
- LargeIntegerLessThan(*sizep, bufEnd)) {
- buf_WaitIO(bufp);
- }
- lock_ObtainMutex(&scp->mx);
+ cm_buf_t *bufp;
+ cm_buf_t *nbufp; /* next buffer, if didRelease */
+ osi_hyper_t bufEnd;
+ long code;
+ long bufferPos;
+ int didRelease;
+ long i;
+
+ /* assert that cm_bufCreateLock is held in write mode */
+ lock_AssertWrite(&scp->bufCreateLock);
+
+ i = BUF_FILEHASH(&scp->fid);
+
+ lock_ObtainWrite(&buf_globalLock);
+ bufp = buf_fileHashTablepp[i];
+ if (bufp == NULL) {
+ lock_ReleaseWrite(&buf_globalLock);
+ return 0;
+ }
+
+ bufp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
+ for(; bufp; bufp = nbufp) {
+ didRelease = 0;
+ lock_ObtainMutex(&bufp->mx);
+
+ bufEnd.HighPart = 0;
+ bufEnd.LowPart = buf_bufferSize;
+ bufEnd = LargeIntegerAdd(bufEnd, bufp->offset);
+
+ if (cm_FidCmp(&bufp->fid, &scp->fid) == 0 &&
+ LargeIntegerLessThan(*sizep, bufEnd)) {
+ buf_WaitIO(bufp);
+ }
+ lock_ObtainMutex(&scp->mx);
- /* make sure we have a callback (so we have the right value for
- * the length), and wait for it to be safe to do a truncate.
- */
- code = cm_SyncOp(scp, bufp, userp, reqp, 0,
- CM_SCACHESYNC_NEEDCALLBACK
- | CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_SETSIZE
- | CM_SCACHESYNC_BUFLOCKED);
- /* if we succeeded in our locking, and this applies to the right
- * file, and the truncate request overlaps the buffer either
- * totally or partially, then do something.
+ /* make sure we have a callback (so we have the right value for
+ * the length), and wait for it to be safe to do a truncate.
+ */
+ code = cm_SyncOp(scp, bufp, userp, reqp, 0,
+ CM_SCACHESYNC_NEEDCALLBACK
+ | CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_SETSIZE
+ | CM_SCACHESYNC_BUFLOCKED);
+ /* if we succeeded in our locking, and this applies to the right
+ * file, and the truncate request overlaps the buffer either
+ * totally or partially, then do something.
+ */
+ if (code == 0 && cm_FidCmp(&bufp->fid, &scp->fid) == 0
+ && LargeIntegerLessThan(*sizep, bufEnd)) {
+
+ lock_ObtainWrite(&buf_globalLock);
+
+ /* destroy the buffer, turning off its dirty bit, if
+ * we're truncating the whole buffer. Otherwise, set
+ * the dirty bit, and clear out the tail of the buffer
+ * if we just overlap some.
+ */
+ if (LargeIntegerLessThanOrEqualTo(*sizep, bufp->offset)) {
+ /* truncating the entire page */
+ bufp->flags &= ~CM_BUF_DIRTY;
+ bufp->dataVersion = -1; /* known bad */
+ bufp->dirtyCounter++;
+ }
+ else {
+ /* don't set dirty, since dirty implies
+ * currently up-to-date. Don't need to do this,
+ * since we'll update the length anyway.
+ *
+ * Zero out remainder of the page, in case we
+ * seek and write past EOF, and make this data
+ * visible again.
*/
- if (code == 0 && cm_FidCmp(&bufp->fid, &scp->fid) == 0
- && LargeIntegerLessThan(*sizep, bufEnd)) {
-
- lock_ObtainWrite(&buf_globalLock);
-
- /* destroy the buffer, turning off its dirty bit, if
- * we're truncating the whole buffer. Otherwise, set
- * the dirty bit, and clear out the tail of the buffer
- * if we just overlap some.
- */
- if (LargeIntegerLessThanOrEqualTo(*sizep, bufp->offset)) {
- /* truncating the entire page */
- bufp->flags &= ~CM_BUF_DIRTY;
- bufp->dataVersion = -1; /* known bad */
- bufp->dirtyCounter++;
- }
- else {
- /* don't set dirty, since dirty implies
- * currently up-to-date. Don't need to do this,
- * since we'll update the length anyway.
- *
- * Zero out remainder of the page, in case we
- * seek and write past EOF, and make this data
- * visible again.
- */
- bufferPos = sizep->LowPart & (buf_bufferSize - 1);
- osi_assert(bufferPos != 0);
- memset(bufp->datap + bufferPos, 0,
- buf_bufferSize - bufferPos);
- }
-
- lock_ReleaseWrite(&buf_globalLock);
- }
+ bufferPos = sizep->LowPart & (buf_bufferSize - 1);
+ osi_assert(bufferPos != 0);
+ memset(bufp->datap + bufferPos, 0,
+ buf_bufferSize - bufferPos);
+ }
+
+ lock_ReleaseWrite(&buf_globalLock);
+ }
- lock_ReleaseMutex(&scp->mx);
- lock_ReleaseMutex(&bufp->mx);
- if (!didRelease) {
- lock_ObtainWrite(&buf_globalLock);
- nbufp = bufp->fileHashp;
- if (nbufp) nbufp->refCount++;
- buf_LockedRelease(bufp);
- lock_ReleaseWrite(&buf_globalLock);
- }
-
- /* bail out early if we fail */
- if (code) {
- /* at this point, nbufp is held; bufp has already been
- * released.
- */
- if (nbufp) buf_Release(nbufp);
- return code;
- }
- }
-
- /* success */
- return 0;
+ lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&bufp->mx);
+ if (!didRelease) {
+ lock_ObtainWrite(&buf_globalLock);
+ nbufp = bufp->fileHashp;
+ if (nbufp) nbufp->refCount++;
+ buf_LockedRelease(bufp);
+ lock_ReleaseWrite(&buf_globalLock);
+ }
+
+ /* bail out early if we fail */
+ if (code) {
+ /* at this point, nbufp is held; bufp has already been
+ * released.
+ */
+ if (nbufp)
+ buf_Release(nbufp);
+ return code;
+ }
+ }
+
+ /* success */
+ return 0;
}
long buf_FlushCleanPages(cm_scache_t *scp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- cm_buf_t *bp; /* buffer we're hacking on */
- cm_buf_t *nbp;
- int didRelease;
- long i;
-
- i = BUF_FILEHASH(&scp->fid);
-
- code = 0;
- lock_ObtainWrite(&buf_globalLock);
- bp = buf_fileHashTablepp[i];
- if (bp) bp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
- for(; bp; bp = nbp) {
- didRelease = 0; /* haven't released this buffer yet */
-
- /* clean buffer synchronously */
- if (cm_FidCmp(&bp->fid, &scp->fid) == 0) {
- lock_ObtainMutex(&bp->mx);
-
- /* start cleaning the buffer, and wait for it to finish */
- buf_LockedCleanAsync(bp, reqp);
- buf_WaitIO(bp);
- lock_ReleaseMutex(&bp->mx);
-
- code = (*cm_buf_opsp->Stabilizep)(scp, userp, reqp);
- if (code) goto skip;
-
- lock_ObtainWrite(&buf_globalLock);
- /* actually, we only know that buffer is clean if ref
- * count is 1, since we don't have buffer itself locked.
- */
- if (!(bp->flags & CM_BUF_DIRTY)) {
- if (bp->refCount == 1) { /* bp is held above */
- buf_LockedRelease(bp);
- nbp = bp->fileHashp;
- if (nbp) nbp->refCount++;
- didRelease = 1;
- buf_Recycle(bp);
- }
- }
- lock_ReleaseWrite(&buf_globalLock);
-
- (*cm_buf_opsp->Unstabilizep)(scp, userp);
- }
-
-skip:
- if (!didRelease) {
- lock_ObtainWrite(&buf_globalLock);
- if (nbp = bp->fileHashp) nbp->refCount++;
- buf_LockedRelease(bp);
- lock_ReleaseWrite(&buf_globalLock);
- }
- } /* for loop over a bunch of buffers */
-
- /* done */
- return code;
-}
+ long code;
+ cm_buf_t *bp; /* buffer we're hacking on */
+ cm_buf_t *nbp;
+ int didRelease;
+ long i;
+
+ i = BUF_FILEHASH(&scp->fid);
+
+ code = 0;
+ lock_ObtainWrite(&buf_globalLock);
+ bp = buf_fileHashTablepp[i];
+ if (bp) bp->refCount++;
+ lock_ReleaseWrite(&buf_globalLock);
+ for(; bp; bp = nbp) {
+ didRelease = 0; /* haven't released this buffer yet */
+
+ /* clean buffer synchronously */
+ if (cm_FidCmp(&bp->fid, &scp->fid) == 0) {
+ lock_ObtainMutex(&bp->mx);
+
+ /* start cleaning the buffer, and wait for it to finish */
+ buf_LockedCleanAsync(bp, reqp);
+ buf_WaitIO(bp);
+ lock_ReleaseMutex(&bp->mx);
+
+ code = (*cm_buf_opsp->Stabilizep)(scp, userp, reqp);
+ if (code) goto skip;
+
+ lock_ObtainWrite(&buf_globalLock);
+ /* actually, we only know that buffer is clean if ref
+ * count is 1, since we don't have buffer itself locked.
+ */
+ if (!(bp->flags & CM_BUF_DIRTY)) {
+ if (bp->refCount == 1) { /* bp is held above */
+ buf_LockedRelease(bp);
+ nbp = bp->fileHashp;
+ if (nbp) nbp->refCount++;
+ didRelease = 1;
+ buf_Recycle(bp);
+ }
+ }
+ lock_ReleaseWrite(&buf_globalLock);
+
+ (*cm_buf_opsp->Unstabilizep)(scp, userp);
+ }
+
+ skip:
+ if (!didRelease) {
+ lock_ObtainWrite(&buf_globalLock);
+ if (nbp = bp->fileHashp) nbp->refCount++;
+ buf_LockedRelease(bp);
+ lock_ReleaseWrite(&buf_globalLock);
+ }
+ } /* for loop over a bunch of buffers */
+
+ /* done */
+ return code;
+}
long buf_CleanVnode(struct cm_scache *scp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- cm_buf_t *bp; /* buffer we're hacking on */
+ long code;
+ cm_buf_t *bp; /* buffer we're hacking on */
cm_buf_t *nbp; /* next one */
- long i;
+ long i;
- i = BUF_FILEHASH(&scp->fid);
+ i = BUF_FILEHASH(&scp->fid);
- code = 0;
- lock_ObtainWrite(&buf_globalLock);
+ code = 0;
+ lock_ObtainWrite(&buf_globalLock);
bp = buf_fileHashTablepp[i];
if (bp) bp->refCount++;
lock_ReleaseWrite(&buf_globalLock);
- for(; bp; bp = nbp) {
- /* clean buffer synchronously */
- if (cm_FidCmp(&bp->fid, &scp->fid) == 0) {
- if (userp) {
+ for(; bp; bp = nbp) {
+ /* clean buffer synchronously */
+ if (cm_FidCmp(&bp->fid, &scp->fid) == 0) {
+ if (userp) {
cm_HoldUser(userp);
- lock_ObtainMutex(&bp->mx);
- if (bp->userp)
+ lock_ObtainMutex(&bp->mx);
+ if (bp->userp)
cm_ReleaseUser(bp->userp);
bp->userp = userp;
- lock_ReleaseMutex(&bp->mx);
- }
- buf_CleanAsync(bp, reqp);
+ lock_ReleaseMutex(&bp->mx);
+ }
+ buf_CleanAsync(bp, reqp);
buf_CleanWait(bp);
lock_ObtainMutex(&bp->mx);
- if (bp->flags & CM_BUF_ERROR) {
- if (code == 0 || code == -1) code = bp->error;
- if (code == 0) code = -1;
+ if (bp->flags & CM_BUF_ERROR) {
+ if (code == 0 || code == -1)
+ code = bp->error;
+ if (code == 0)
+ code = -1;
}
lock_ReleaseMutex(&bp->mx);
- }
+ }
- lock_ObtainWrite(&buf_globalLock);
- buf_LockedRelease(bp);
+ lock_ObtainWrite(&buf_globalLock);
+ buf_LockedRelease(bp);
nbp = bp->fileHashp;
if (nbp) nbp->refCount++;
- lock_ReleaseWrite(&buf_globalLock);
- } /* for loop over a bunch of buffers */
-
+ lock_ReleaseWrite(&buf_globalLock);
+ } /* for loop over a bunch of buffers */
+
/* done */
- return code;
+ return code;
}
/* dump the contents of the buf_hashTablepp. */
char output[1024];
int i;
- if (buf_hashTablepp == NULL)
- return -1;
+ if (buf_hashTablepp == NULL)
+ return -1;
lock_ObtainRead(&buf_globalLock);
*/
void cm_RecordRacingRevoke(cm_fid_t *fidp, long cancelFlags)
{
- cm_racingRevokes_t *rp;
+ cm_racingRevokes_t *rp;
- lock_ObtainWrite(&cm_callbackLock);
+ lock_ObtainWrite(&cm_callbackLock);
osi_Log3(afsd_logp, "RecordRacingRevoke Volume %d Flags %lX activeCalls %d",
fidp->volume, cancelFlags, cm_activeCallbackGrantingCalls);
- if (cm_activeCallbackGrantingCalls > 0) {
- rp = malloc(sizeof(*rp));
- memset(rp, 0, sizeof(*rp));
- osi_QAdd((osi_queue_t **) &cm_racingRevokesp, &rp->q);
- rp->flags |= (cancelFlags & CM_RACINGFLAG_ALL);
- if (fidp) rp->fid = *fidp;
- rp->callbackCount = ++cm_callbackCount;
- }
- lock_ReleaseWrite(&cm_callbackLock);
+ if (cm_activeCallbackGrantingCalls > 0) {
+ rp = malloc(sizeof(*rp));
+ memset(rp, 0, sizeof(*rp));
+ osi_QAdd((osi_queue_t **) &cm_racingRevokesp, &rp->q);
+ rp->flags |= (cancelFlags & CM_RACINGFLAG_ALL);
+ if (fidp) rp->fid = *fidp;
+ rp->callbackCount = ++cm_callbackCount;
+ }
+ lock_ReleaseWrite(&cm_callbackLock);
}
/*
*/
void cm_RevokeCallback(struct rx_call *callp, AFSFid *fidp)
{
- cm_fid_t tfid;
- cm_scache_t *scp;
- long hash;
+ cm_fid_t tfid;
+ cm_scache_t *scp;
+ long hash;
- /* don't bother setting cell, since we won't be checking it (to aid
- * in working with multi-homed servers: we don't know the cell if we
- * don't recognize the IP address).
- */
- tfid.cell = 0;
- tfid.volume = fidp->Volume;
- tfid.vnode = fidp->Vnode;
- tfid.unique = fidp->Unique;
- hash = CM_SCACHE_HASH(&tfid);
+ /* don't bother setting cell, since we won't be checking it (to aid
+ * in working with multi-homed servers: we don't know the cell if we
+ * don't recognize the IP address).
+ */
+ tfid.cell = 0;
+ tfid.volume = fidp->Volume;
+ tfid.vnode = fidp->Vnode;
+ tfid.unique = fidp->Unique;
+ hash = CM_SCACHE_HASH(&tfid);
osi_Log3(afsd_logp, "RevokeCallback vol %d vn %d un %d",
- fidp->Volume, fidp->Vnode, fidp->Unique);
+ fidp->Volume, fidp->Vnode, fidp->Unique);
- /* do this first, so that if we're executing a callback granting call
- * at this moment, we kill it before it can be merged in. Otherwise,
- * it could complete while we're doing the scan below, and get missed
- * by both the scan and by this code.
- */
- cm_RecordRacingRevoke(&tfid, 0);
+ /* do this first, so that if we're executing a callback granting call
+ * at this moment, we kill it before it can be merged in. Otherwise,
+ * it could complete while we're doing the scan below, and get missed
+ * by both the scan and by this code.
+ */
+ cm_RecordRacingRevoke(&tfid, 0);
- lock_ObtainWrite(&cm_scacheLock);
- /* do all in the hash bucket, since we don't know how many we'll find with
- * varying cells.
- */
- for(scp = cm_hashTablep[hash]; scp; scp=scp->nextp) {
- if (scp->fid.volume == tfid.volume &&
- scp->fid.vnode == tfid.vnode &&
- scp->fid.unique == tfid.unique) {
- scp->refCount++;
- lock_ReleaseWrite(&cm_scacheLock);
+ lock_ObtainWrite(&cm_scacheLock);
+ /* do all in the hash bucket, since we don't know how many we'll find with
+ * varying cells.
+ */
+ for (scp = cm_hashTablep[hash]; scp; scp=scp->nextp) {
+ if (scp->fid.volume == tfid.volume &&
+ scp->fid.vnode == tfid.vnode &&
+ scp->fid.unique == tfid.unique) {
+ scp->refCount++;
+ lock_ReleaseWrite(&cm_scacheLock);
osi_Log1(afsd_logp, "Discarding SCache scp %x", scp);
- lock_ObtainMutex(&scp->mx);
- cm_DiscardSCache(scp);
- lock_ReleaseMutex(&scp->mx);
- cm_CallbackNotifyChange(scp);
- lock_ObtainWrite(&cm_scacheLock);
- scp->refCount--;
- }
+ lock_ObtainMutex(&scp->mx);
+ cm_DiscardSCache(scp);
+ lock_ReleaseMutex(&scp->mx);
+ cm_CallbackNotifyChange(scp);
+ lock_ObtainWrite(&cm_scacheLock);
+ scp->refCount--;
}
- lock_ReleaseWrite(&cm_scacheLock);
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
}
/* called to revoke a volume callback, which is typically issued when a volume
*/
void cm_RevokeVolumeCallback(struct rx_call *callp, AFSFid *fidp)
{
- long hash;
- cm_scache_t *scp;
- cm_fid_t tfid;
+ long hash;
+ cm_scache_t *scp;
+ cm_fid_t tfid;
osi_Log1(afsd_logp, "RevokeVolumeCallback %d", fidp->Volume);
- /* do this first, so that if we're executing a callback granting call
- * at this moment, we kill it before it can be merged in. Otherwise,
- * it could complete while we're doing the scan below, and get missed
- * by both the scan and by this code.
- */
- tfid.cell = tfid.vnode = tfid.unique = 0;
- tfid.volume = fidp->Volume;
- cm_RecordRacingRevoke(&tfid, CM_RACINGFLAG_CANCELVOL);
-
-
- lock_ObtainWrite(&cm_scacheLock);
- for(hash = 0; hash < cm_hashTableSize; hash++) {
- for(scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
- if (scp->fid.volume == fidp->Volume) {
- scp->refCount++;
- lock_ReleaseWrite(&cm_scacheLock);
- lock_ObtainMutex(&scp->mx);
+ /* do this first, so that if we're executing a callback granting call
+ * at this moment, we kill it before it can be merged in. Otherwise,
+ * it could complete while we're doing the scan below, and get missed
+ * by both the scan and by this code.
+ */
+ tfid.cell = tfid.vnode = tfid.unique = 0;
+ tfid.volume = fidp->Volume;
+ cm_RecordRacingRevoke(&tfid, CM_RACINGFLAG_CANCELVOL);
+
+
+ lock_ObtainWrite(&cm_scacheLock);
+ for (hash = 0; hash < cm_hashTableSize; hash++) {
+ for(scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
+ if (scp->fid.volume == fidp->Volume) {
+ scp->refCount++;
+ lock_ReleaseWrite(&cm_scacheLock);
+ lock_ObtainMutex(&scp->mx);
osi_Log1(afsd_logp, "Discarding SCache scp %x", scp);
- cm_DiscardSCache(scp);
- lock_ReleaseMutex(&scp->mx);
- cm_CallbackNotifyChange(scp);
- lock_ObtainWrite(&cm_scacheLock);
- scp->refCount--;
- }
- } /* search one hash bucket */
- } /* search all hash buckets */
-
- lock_ReleaseWrite(&cm_scacheLock);
+ cm_DiscardSCache(scp);
+ lock_ReleaseMutex(&scp->mx);
+ cm_CallbackNotifyChange(scp);
+ lock_ObtainWrite(&cm_scacheLock);
+ scp->refCount--;
+ }
+ } /* search one hash bucket */
+ } /* search all hash buckets */
+
+ lock_ReleaseWrite(&cm_scacheLock);
}
/* handle incoming RPC callback breaking message.
*/
SRXAFSCB_CallBack(struct rx_call *callp, AFSCBFids *fidsArrayp, AFSCBs *cbsArrayp)
{
- int i;
- AFSFid *tfidp;
+ int i;
+ AFSFid *tfidp;
osi_Log0(afsd_logp, "SRXAFSCB_CallBack");
- for(i=0; i < (long) fidsArrayp->AFSCBFids_len; i++) {
- tfidp = &fidsArrayp->AFSCBFids_val[i];
+ for (i=0; i < (long) fidsArrayp->AFSCBFids_len; i++) {
+ tfidp = &fidsArrayp->AFSCBFids_val[i];
if (tfidp->Volume == 0)
continue; /* means don't do anything */
- else if (tfidp->Vnode == 0)
- cm_RevokeVolumeCallback(callp, tfidp);
+ else if (tfidp->Vnode == 0)
+ cm_RevokeVolumeCallback(callp, tfidp);
else
cm_RevokeCallback(callp, tfidp);
- }
+ }
- return 0;
+ return 0;
}
/* called with no locks by RPC system when a server indicates that it has never
* are "rare," hopefully this won't be a problem.
*/
lock_ObtainWrite(&cm_scacheLock);
- for(hash = 0; hash < cm_hashTableSize; hash++) {
- for(scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
- scp->refCount++;
- lock_ReleaseWrite(&cm_scacheLock);
- lock_ObtainMutex(&scp->mx);
- discarded = 0;
- if (scp->cbServerp != NULL) {
- /* we have a callback, now decide if we should clear it */
- if (scp->cbServerp == tsp || tsp == NULL) {
+ for (hash = 0; hash < cm_hashTableSize; hash++) {
+ for (scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
+ scp->refCount++;
+ lock_ReleaseWrite(&cm_scacheLock);
+ lock_ObtainMutex(&scp->mx);
+ discarded = 0;
+ if (scp->cbServerp != NULL) {
+ /* we have a callback, now decide if we should clear it */
+ if (scp->cbServerp == tsp || tsp == NULL) {
osi_Log1(afsd_logp, "Discarding SCache scp %x", scp);
- cm_DiscardSCache(scp);
- discarded = 1;
- }
- }
- lock_ReleaseMutex(&scp->mx);
- if (discarded)
- cm_CallbackNotifyChange(scp);
- lock_ObtainWrite(&cm_scacheLock);
- scp->refCount--;
- } /* search one hash bucket */
- } /* search all hash buckets */
+ cm_DiscardSCache(scp);
+ discarded = 1;
+ }
+ }
+ lock_ReleaseMutex(&scp->mx);
+ if (discarded)
+ cm_CallbackNotifyChange(scp);
+ lock_ObtainWrite(&cm_scacheLock);
+ scp->refCount--;
+ } /* search one hash bucket */
+ } /* search all hash buckets */
lock_ReleaseWrite(&cm_scacheLock);
/* we're done with the server structure */
- if (tsp) cm_PutServer(tsp);
+ if (tsp)
+ cm_PutServer(tsp);
}
return 0;
SRXAFSCB_Probe(struct rx_call *callp)
{
osi_Log0(afsd_logp, "SRXAFSCB_Probe - not implemented");
- return 0;
+ return 0;
}
/* debug interface: not implemented */
/* debug interface: not implemented */
SRXAFSCB_GetLock(struct rx_call *callp, long index, AFSDBLock *lockp)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_GetLock - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_GetCE(struct rx_call *callp, long index, AFSDBCacheEntry *cep)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_GetCE - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_XStatsVersion(struct rx_call *callp, long *vp)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_XStatsVersion - not implemented");
- *vp = -1;
- return RXGEN_OPCODE;
+ *vp = -1;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_GetXStats(struct rx_call *callp, long cvn, long coln, long *srvp, long *timep,
AFSCB_CollData *datap)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_GetXStats - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_InitCallBackState2(struct rx_call *callp, struct interfaceAddr* addr)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_InitCallBackState2 - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_WhoAreYou(struct rx_call *callp, struct interfaceAddr* addr)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_WhoAreYou - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_InitCallBackState3(struct rx_call *callp, afsUUID* serverUuid)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_InitCallBackState3 - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/* debug interface: not implemented */
SRXAFSCB_ProbeUuid(struct rx_call *callp, afsUUID* clientUuid)
{
- /* XXXX */
+ /* XXXX */
osi_Log0(afsd_logp, "SRXAFSCB_ProbeUuid - not implemented");
- return RXGEN_OPCODE;
+ return RXGEN_OPCODE;
}
/*------------------------------------------------------------------------
/* called by afsd without any locks to initialize this module */
void cm_InitCallback(void)
{
- lock_InitializeRWLock(&cm_callbackLock, "cm_callbackLock");
- cm_activeCallbackGrantingCalls = 0;
+ lock_InitializeRWLock(&cm_callbackLock, "cm_callbackLock");
+ cm_activeCallbackGrantingCalls = 0;
}
/* called with locked scp; tells us whether we've got a callback.
// to be called because cm_GetCallback has some initialization work to do.
// If cm_fakeDirCallback is 2, then it means that the fake directory is in
// good shape and we simply return true, provided no change is detected.
- int fdc, fgc;
+ int fdc, fgc;
if (cm_freelanceEnabled &&
scp->fid.cell==AFS_FAKE_ROOT_CELL_ID && scp->fid.volume==AFS_FAKE_ROOT_VOL_ID) {
*/
void cm_StartCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp)
{
- lock_ObtainWrite(&cm_callbackLock);
- cbrp->callbackCount = cm_callbackCount;
- cm_activeCallbackGrantingCalls++;
- cbrp->startTime = osi_Time();
- cbrp->serverp = NULL;
- lock_ReleaseWrite(&cm_callbackLock);
+ lock_ObtainWrite(&cm_callbackLock);
+ cbrp->callbackCount = cm_callbackCount;
+ cm_activeCallbackGrantingCalls++;
+ cbrp->startTime = osi_Time();
+ cbrp->serverp = NULL;
+ lock_ReleaseWrite(&cm_callbackLock);
}
/* Called at the end of a callback-granting call, to remove the callback
* this locking hierarchy.
*/
void cm_EndCallbackGrantingCall(cm_scache_t *scp, cm_callbackRequest_t *cbrp,
- AFSCallBack *cbp, long flags)
+ AFSCallBack *cbp, long flags)
{
- cm_racingRevokes_t *revp; /* where we are */
- cm_racingRevokes_t *nrevp; /* where we'll be next */
- int freeFlag;
+ cm_racingRevokes_t *revp; /* where we are */
+ cm_racingRevokes_t *nrevp; /* where we'll be next */
+ int freeFlag;
cm_server_t * serverp = 0;
- lock_ObtainWrite(&cm_callbackLock);
- if (flags & CM_CALLBACK_MAINTAINCOUNT) {
- osi_assert(cm_activeCallbackGrantingCalls > 0);
- }
- else {
- osi_assert(cm_activeCallbackGrantingCalls-- > 0);
- }
+ lock_ObtainWrite(&cm_callbackLock);
+ if (flags & CM_CALLBACK_MAINTAINCOUNT) {
+ osi_assert(cm_activeCallbackGrantingCalls > 0);
+ }
+ else {
+ osi_assert(cm_activeCallbackGrantingCalls-- > 0);
+ }
if (cm_activeCallbackGrantingCalls == 0)
freeFlag = 1;
else
freeFlag = 0;
- /* record the callback; we'll clear it below if we really lose it */
+ /* record the callback; we'll clear it below if we really lose it */
if (cbrp) {
if (scp) {
if (scp->cbServerp != cbrp->serverp) {
serverp = scp->cbServerp;
}
- scp->cbServerp = cbrp->serverp;
- scp->cbExpires = cbrp->startTime + cbp->ExpirationTime;
+ scp->cbServerp = cbrp->serverp;
+ scp->cbExpires = cbrp->startTime + cbp->ExpirationTime;
} else {
serverp = cbrp->serverp;
}
cbrp->serverp = NULL;
- }
+ }
- /* a callback was actually revoked during our granting call, so
- * run down the list of revoked fids, looking for ours.
- * If activeCallbackGrantingCalls is zero, free the elements, too.
- *
- * May need to go through entire list just to do the freeing.
- */
- for(revp = cm_racingRevokesp; revp; revp = nrevp) {
- nrevp = (cm_racingRevokes_t *) osi_QNext(&revp->q);
- /* if this callback came in later than when we started the
- * callback-granting call, and if this fid is the right fid,
- * then clear the callback.
- */
+ /* a callback was actually revoked during our granting call, so
+ * run down the list of revoked fids, looking for ours.
+ * If activeCallbackGrantingCalls is zero, free the elements, too.
+ *
+ * May need to go through entire list just to do the freeing.
+ */
+ for (revp = cm_racingRevokesp; revp; revp = nrevp) {
+ nrevp = (cm_racingRevokes_t *) osi_QNext(&revp->q);
+ /* if this callback came in later than when we started the
+ * callback-granting call, and if this fid is the right fid,
+ * then clear the callback.
+ */
if (scp && cbrp && cbrp->callbackCount != cm_callbackCount
- && revp->callbackCount > cbrp->callbackCount
+ && revp->callbackCount > cbrp->callbackCount
&& (( scp->fid.volume == revp->fid.volume &&
- scp->fid.vnode == revp->fid.vnode &&
- scp->fid.unique == revp->fid.unique)
- ||
- ((revp->flags & CM_RACINGFLAG_CANCELVOL) &&
- scp->fid.volume == revp->fid.volume)
- ||
- (revp->flags & CM_RACINGFLAG_CANCELALL))) {
- /* this one matches */
- osi_Log4(afsd_logp,
- "Racing revoke scp %x old cbc %d rev cbc %d cur cbc %d",
- scp,
- cbrp->callbackCount, revp->callbackCount,
- cm_callbackCount);
- cm_DiscardSCache(scp);
- /*
- * Since we don't have a callback to preserve, it's
- * OK to drop the lock and re-obtain it.
- */
- lock_ReleaseMutex(&scp->mx);
- cm_CallbackNotifyChange(scp);
- lock_ObtainMutex(&scp->mx);
- }
- if (freeFlag) free(revp);
+ scp->fid.vnode == revp->fid.vnode &&
+ scp->fid.unique == revp->fid.unique)
+ ||
+ ((revp->flags & CM_RACINGFLAG_CANCELVOL) &&
+ scp->fid.volume == revp->fid.volume)
+ ||
+ (revp->flags & CM_RACINGFLAG_CANCELALL))) {
+ /* this one matches */
+ osi_Log4(afsd_logp,
+ "Racing revoke scp %x old cbc %d rev cbc %d cur cbc %d",
+ scp,
+ cbrp->callbackCount, revp->callbackCount,
+ cm_callbackCount);
+ cm_DiscardSCache(scp);
+ /*
+ * Since we don't have a callback to preserve, it's
+ * OK to drop the lock and re-obtain it.
+ */
+ lock_ReleaseMutex(&scp->mx);
+ cm_CallbackNotifyChange(scp);
+ lock_ObtainMutex(&scp->mx);
}
+ if (freeFlag) free(revp);
+ }
- /* if we freed the list, zap the pointer to it */
- if (freeFlag) cm_racingRevokesp = NULL;
+ /* if we freed the list, zap the pointer to it */
+ if (freeFlag) cm_racingRevokesp = NULL;
- lock_ReleaseWrite(&cm_callbackLock);
+ lock_ReleaseWrite(&cm_callbackLock);
if ( serverp ) {
lock_ObtainWrite(&cm_serverLock);
* called with locked scp; returns with same.
*/
long cm_GetCallback(cm_scache_t *scp, struct cm_user *userp,
- struct cm_req *reqp, long flags)
+ struct cm_req *reqp, long flags)
{
- long code;
+ long code;
cm_conn_t *connp;
AFSFetchStatus afsStatus;
AFSVolSync volSync;
osi_Log2(afsd_logp, "GetCallback scp %x flags %lX", scp, flags);
#ifdef AFS_FREELANCE_CLIENT
- // The case where a callback is needed on /afs is handled
- // specially. We need to fetch the status by calling
- // cm_MergeStatus and mark that cm_fakeDirCallback is 2
- if (cm_freelanceEnabled) {
+ // The case where a callback is needed on /afs is handled
+ // specially. We need to fetch the status by calling
+ // cm_MergeStatus and mark that cm_fakeDirCallback is 2
+ if (cm_freelanceEnabled) {
if (scp->fid.cell==AFS_FAKE_ROOT_CELL_ID &&
scp->fid.volume==AFS_FAKE_ROOT_VOL_ID &&
scp->fid.unique==0x1 &&
}
#endif /* AFS_FREELANCE_CLIENT */
- mustCall = (flags & 1);
- cm_AFSFidFromFid(&tfid, &scp->fid);
- while (1) {
- if (!mustCall && cm_HaveCallback(scp)) return 0;
+ mustCall = (flags & 1);
+ cm_AFSFidFromFid(&tfid, &scp->fid);
+ while (1) {
+ if (!mustCall && cm_HaveCallback(scp)) return 0;
/* turn off mustCall, since it has now forced us past the check above */
mustCall = 0;
/* otherwise, we have to make an RPC to get the status */
- sflags = CM_SCACHESYNC_FETCHSTATUS | CM_SCACHESYNC_GETCALLBACK;
+ sflags = CM_SCACHESYNC_FETCHSTATUS | CM_SCACHESYNC_GETCALLBACK;
cm_SyncOp(scp, NULL, NULL, NULL, 0, sflags);
cm_StartCallbackGrantingCall(scp, &cbr);
sfid = scp->fid;
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
- /* now make the RPC */
- osi_Log1(afsd_logp, "CALL FetchStatus vp %x", (long) scp);
+ /* now make the RPC */
+ osi_Log1(afsd_logp, "CALL FetchStatus vp %x", (long) scp);
do {
- code = cm_Conn(&sfid, userp, reqp, &connp);
+ code = cm_Conn(&sfid, userp, reqp, &connp);
if (code) continue;
-
+
+ lock_ObtainMutex(&connp->mx);
code = RXAFS_FetchStatus(connp->callp, &tfid,
&afsStatus, &callback, &volSync);
-
- } while (cm_Analyze(connp, userp, reqp, &sfid, &volSync, NULL,
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp, &sfid, &volSync, NULL,
&cbr, code));
code = cm_MapRPCError(code, reqp);
- osi_Log0(afsd_logp, "CALL FetchStatus DONE");
+ osi_Log0(afsd_logp, "CALL FetchStatus DONE");
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
cm_SyncOpDone(scp, NULL, sflags);
- if (code == 0) {
+ if (code == 0) {
cm_EndCallbackGrantingCall(scp, &cbr, &callback, 0);
cm_MergeStatus(scp, &afsStatus, &volSync, userp, 0);
- }
+ }
else
cm_EndCallbackGrantingCall(NULL, &cbr, NULL, 0);
now = osi_Time();
lock_ObtainWrite(&cm_scacheLock);
- for(i=0; i<cm_hashTableSize; i++) {
- for(scp = cm_hashTablep[i]; scp; scp=scp->nextp) {
+ for (i=0; i<cm_hashTableSize; i++) {
+ for (scp = cm_hashTablep[i]; scp; scp=scp->nextp) {
scp->refCount++;
lock_ReleaseWrite(&cm_scacheLock);
if (scp->cbExpires > 0 && (scp->cbServerp == NULL || now > scp->cbExpires)) {
/* called with a held server to GC all bad connections hanging off of the server */
void cm_GCConnections(cm_server_t *serverp)
{
- cm_conn_t *tcp;
+ cm_conn_t *tcp;
cm_conn_t **lcpp;
cm_user_t *userp;
- lock_ObtainWrite(&cm_connLock);
- lcpp = &serverp->connsp;
- for(tcp = *lcpp; tcp; tcp = *lcpp) {
- userp = tcp->userp;
- if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
- /* do the deletion of this guy */
+ lock_ObtainWrite(&cm_connLock);
+ lcpp = &serverp->connsp;
+ for (tcp = *lcpp; tcp; tcp = *lcpp) {
+ userp = tcp->userp;
+ if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
+ /* do the deletion of this guy */
cm_PutServer(tcp->serverp);
cm_ReleaseUser(userp);
*lcpp = tcp->nextp;
- rx_DestroyConnection(tcp->callp);
+ rx_DestroyConnection(tcp->callp);
lock_FinalizeMutex(&tcp->mx);
free(tcp);
}
else {
- /* just advance to the next */
+ /* just advance to the next */
lcpp = &tcp->nextp;
}
}
- lock_ReleaseWrite(&cm_connLock);
+ lock_ReleaseWrite(&cm_connLock);
}
static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
int serviceID;
int secIndex;
struct rx_securityClass *secObjp;
- afs_int32 level;
+ afs_int32 level;
- if (serverp->type == CM_SERVER_VLDB) {
- port = htons(7003);
+ if (serverp->type == CM_SERVER_VLDB) {
+ port = htons(7003);
serviceID = 52;
}
else {
- osi_assert(serverp->type == CM_SERVER_FILE);
+ osi_assert(serverp->type == CM_SERVER_FILE);
port = htons(7000);
serviceID = 1;
}
- if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
- secIndex = 2;
- if (cryptall) {
- level = rxkad_crypt;
- tcp->cryptlevel = rxkad_crypt;
- } else {
- level = rxkad_clear;
- }
+ if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
+ secIndex = 2;
+ if (cryptall) {
+ level = tcp->cryptlevel = rxkad_crypt;
+ } else {
+ level = tcp->cryptlevel = rxkad_clear;
+ }
secObjp = rxkad_NewClientSecurityObject(level,
&ucellp->sessionKey, ucellp->kvno,
ucellp->ticketLen, ucellp->ticketp);
secIndex = 0;
secObjp = rxnull_NewClientSecurityObject();
}
- osi_assert(secObjp != NULL);
+ osi_assert(secObjp != NULL);
tcp->callp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
port,
serviceID,
secObjp,
secIndex);
- rx_SetConnDeadTime(tcp->callp, ConnDeadtimeout);
- rx_SetConnHardDeadTime(tcp->callp, HardDeadtimeout);
- tcp->ucgen = ucellp->gen;
+ rx_SetConnDeadTime(tcp->callp, ConnDeadtimeout);
+ rx_SetConnHardDeadTime(tcp->callp, HardDeadtimeout);
+ tcp->ucgen = ucellp->gen;
if (secObjp)
rxs_Release(secObjp); /* Decrement the initial refCount */
}
long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
{
- cm_conn_t *tcp;
+ cm_conn_t *tcp;
cm_ucell_t *ucellp;
- lock_ObtainMutex(&userp->mx);
- lock_ObtainWrite(&cm_connLock);
- for(tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
+ lock_ObtainMutex(&userp->mx);
+ lock_ObtainWrite(&cm_connLock);
+ for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
if (tcp->userp == userp)
break;
}
- /* find ucell structure */
+ /* find ucell structure */
ucellp = cm_GetUCell(userp, serverp->cellp);
- if (!tcp) {
+ if (!tcp) {
cm_GetServer(serverp);
- tcp = malloc(sizeof(*tcp));
+ tcp = malloc(sizeof(*tcp));
memset(tcp, 0, sizeof(*tcp));
tcp->nextp = serverp->connsp;
serverp->connsp = tcp;
cm_HoldUser(userp);
tcp->userp = userp;
lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex");
+ lock_ObtainMutex(&tcp->mx);
tcp->serverp = serverp;
- tcp->cryptlevel = rxkad_clear;
- cm_NewRXConnection(tcp, ucellp, serverp);
- tcp->refCount = 1;
- }
- else {
- if ((tcp->ucgen < ucellp->gen) || (tcp->cryptlevel != cryptall))
- {
- rx_DestroyConnection(tcp->callp);
- cm_NewRXConnection(tcp, ucellp, serverp);
- }
+ tcp->cryptlevel = rxkad_clear;
+ cm_NewRXConnection(tcp, ucellp, serverp);
+ tcp->refCount = 1;
+ lock_ReleaseMutex(&tcp->mx);
+ } else {
+ if ((tcp->ucgen < ucellp->gen) ||
+ (tcp->cryptlevel != (cryptall ? rxkad_crypt : rxkad_clear)))
+ {
+ lock_ObtainMutex(&tcp->mx);
+ rx_DestroyConnection(tcp->callp);
+ cm_NewRXConnection(tcp, ucellp, serverp);
+ lock_ReleaseMutex(&tcp->mx);
+ }
tcp->refCount++;
- }
- lock_ReleaseWrite(&cm_connLock);
+ }
+ lock_ReleaseWrite(&cm_connLock);
lock_ReleaseMutex(&userp->mx);
- /* return this pointer to our caller */
+ /* return this pointer to our caller */
osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%x", (long) tcp);
- *connpp = tcp;
+ *connpp = tcp;
return 0;
}
* or when holding or releasing a vnode pointer.
*/
long cm_BufWrite(void *vfidp, osi_hyper_t *offsetp, long length, long flags,
- cm_user_t *userp, cm_req_t *reqp)
+ cm_user_t *userp, cm_req_t *reqp)
{
- /* store the data back from this buffer; the buffer is locked and held,
- * but the vnode involved isn't locked, yet. It is held by its
- * reference from the buffer, which won't change until the buffer is
- * released by our caller. Thus, we don't have to worry about holding
- * bufp->scp.
- */
- long code;
- cm_fid_t *fidp = vfidp;
+ /* store the data back from this buffer; the buffer is locked and held,
+ * but the vnode involved isn't locked, yet. It is held by its
+ * reference from the buffer, which won't change until the buffer is
+ * released by our caller. Thus, we don't have to worry about holding
+ * bufp->scp.
+ */
+ long code;
+ cm_fid_t *fidp = vfidp;
cm_scache_t *scp;
long nbytes;
long temp;
* drops lots of locks, and may indeed return a properly initialized
* buffer, although more likely it will just return a new, empty, buffer.
*/
- scp = cm_FindSCache(fidp);
- if (scp == NULL)
- return CM_ERROR_NOSUCHFILE; /* shouldn't happen */
+ scp = cm_FindSCache(fidp);
+ if (scp == NULL)
+ return CM_ERROR_NOSUCHFILE; /* shouldn't happen */
- cm_AFSFidFromFid(&tfid, fidp);
+ cm_AFSFidFromFid(&tfid, fidp);
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
code = cm_SetupStoreBIOD(scp, offsetp, length, &biod, userp, reqp);
if (code) {
- osi_Log1(afsd_logp, "cm_SetupStoreBIOD code %x", code);
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
+ osi_Log1(afsd_logp, "cm_SetupStoreBIOD code %x", code);
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
return code;
}
- if (biod.length == 0) {
- osi_Log0(afsd_logp, "cm_SetupStoreBIOD length 0");
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseBIOD(&biod, 1); /* should be a NOOP */
- cm_ReleaseSCache(scp);
+ if (biod.length == 0) {
+ osi_Log0(afsd_logp, "cm_SetupStoreBIOD length 0");
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseBIOD(&biod, 1); /* should be a NOOP */
+ cm_ReleaseSCache(scp);
return 0;
- }
+ }
- /* Serialize StoreData RPC's; for rationale see cm_scache.c */
- (void) cm_SyncOp(scp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA_EXCL);
+ /* Serialize StoreData RPC's; for rationale see cm_scache.c */
+ (void) cm_SyncOp(scp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA_EXCL);
- /* prepare the output status for the store */
- scp->mask |= CM_SCACHEMASK_CLIENTMODTIME;
+ /* prepare the output status for the store */
+ scp->mask |= CM_SCACHEMASK_CLIENTMODTIME;
cm_StatusFromAttr(&inStatus, scp, NULL);
truncPos = scp->length.LowPart;
if ((scp->mask & CM_SCACHEMASK_TRUNCPOS)
truncPos = scp->truncPos.LowPart;
scp->mask &= ~CM_SCACHEMASK_TRUNCPOS;
- /* compute how many bytes to write from this buffer */
+ /* compute how many bytes to write from this buffer */
thyper = LargeIntegerSubtract(scp->length, biod.offset);
if (LargeIntegerLessThanZero(thyper)) {
- /* entire buffer is past EOF */
- nbytes = 0;
+ /* entire buffer is past EOF */
+ nbytes = 0;
}
else {
- /* otherwise write out part of buffer before EOF, but not
+ /* otherwise write out part of buffer before EOF, but not
* more than bufferSize bytes.
*/
- nbytes = thyper.LowPart;
+ nbytes = thyper.LowPart;
if (nbytes > biod.length)
nbytes = biod.length;
}
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
/* now we're ready to do the store operation */
do {
- code = cm_Conn(&scp->fid, userp, reqp, &connp);
+ code = cm_Conn(&scp->fid, userp, reqp, &connp);
if (code)
continue;
- callp = rx_NewCall(connp->callp);
+ callp = rx_NewCall(connp->callp);
- osi_Log3(afsd_logp, "CALL StoreData vp %x, off 0x%x, size 0x%x",
+ osi_Log3(afsd_logp, "CALL StoreData vp %x, off 0x%x, size 0x%x",
(long) scp, biod.offset.LowPart, nbytes);
+ lock_ObtainMutex(&connp->mx);
code = StartRXAFS_StoreData(callp, &tfid, &inStatus,
biod.offset.LowPart, nbytes, truncPos);
- if (code == 0) {
+ if (code == 0) {
/* write the data from the the list of buffers */
qdp = NULL;
- while(nbytes > 0) {
- if (qdp == NULL)
- qdp = biod.bufListEndp;
- else
- qdp = (osi_queueData_t *) osi_QPrev(&qdp->q);
- osi_assert(qdp != NULL);
+ while(nbytes > 0) {
+ if (qdp == NULL)
+ qdp = biod.bufListEndp;
+ else
+ qdp = (osi_queueData_t *) osi_QPrev(&qdp->q);
+ osi_assert(qdp != NULL);
bufp = osi_GetQData(qdp);
bufferp = bufp->datap;
wbytes = nbytes;
if (temp != wbytes) {
osi_Log2(afsd_logp, "rx_Write failed %d != %d",temp,wbytes);
code = -1;
- break;
- } else {
+ break;
+ } else {
osi_Log1(afsd_logp, "rx_Write succeeded %d",temp);
- }
+ }
nbytes -= wbytes;
} /* while more bytes to write */
- } /* if RPC started successfully */
+ } /* if RPC started successfully */
else {
osi_Log1(afsd_logp, "StartRXAFS_StoreData failed (%lX)",code);
}
- if (code == 0) {
- code = EndRXAFS_StoreData(callp, &outStatus, &volSync);
+ if (code == 0) {
+ code = EndRXAFS_StoreData(callp, &outStatus, &volSync);
if (code)
osi_Log1(afsd_logp, "EndRXAFS_StoreData failed (%lX)",code);
}
code = rx_EndCall(callp, code);
+ lock_ReleaseMutex(&connp->mx);
+
osi_Log0(afsd_logp, "CALL StoreData DONE");
- } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync, NULL, NULL, code));
+ } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync, NULL, NULL, code));
code = cm_MapRPCError(code, reqp);
/* now, clean up our state */
lock_ObtainMutex(&scp->mx);
- cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_STOREDATA_EXCL);
+ cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_STOREDATA_EXCL);
- if (code == 0) {
- /* now, here's something a little tricky: in AFS 3, a dirty
- * length can't be directly stored, instead, a dirty chunk is
- * stored that sets the file's size (by writing and by using
- * the truncate-first option in the store call).
- *
+ if (code == 0) {
+ /* now, here's something a little tricky: in AFS 3, a dirty
+ * length can't be directly stored, instead, a dirty chunk is
+ * stored that sets the file's size (by writing and by using
+ * the truncate-first option in the store call).
+ *
* At this point, we've just finished a store, and so the trunc
- * pos field is clean. If the file's size at the server is at
- * least as big as we think it should be, then we turn off the
- * length dirty bit, since all the other dirty buffers must
- * precede this one in the file.
+ * pos field is clean. If the file's size at the server is at
+ * least as big as we think it should be, then we turn off the
+ * length dirty bit, since all the other dirty buffers must
+ * precede this one in the file.
*
* The file's desired size shouldn't be smaller than what's
- * stored at the server now, since we just did the trunc pos
- * store.
+ * stored at the server now, since we just did the trunc pos
+ * store.
*
* We have to turn off the length dirty bit as soon as we can,
- * so that we see updates made by other machines.
+ * so that we see updates made by other machines.
*/
- if (outStatus.Length >= scp->length.LowPart)
+ if (outStatus.Length >= scp->length.LowPart)
scp->mask &= ~CM_SCACHEMASK_LENGTH;
- cm_MergeStatus(scp, &outStatus, &volSync, userp, 0);
- } else {
- if (code == CM_ERROR_SPACE)
- scp->flags |= CM_SCACHEFLAG_OUTOFSPACE;
- else if (code == CM_ERROR_QUOTA)
- scp->flags |= CM_SCACHEFLAG_OVERQUOTA;
- }
+ cm_MergeStatus(scp, &outStatus, &volSync, userp, 0);
+ } else {
+ if (code == CM_ERROR_SPACE)
+ scp->flags |= CM_SCACHEFLAG_OUTOFSPACE;
+ else if (code == CM_ERROR_QUOTA)
+ scp->flags |= CM_SCACHEFLAG_OVERQUOTA;
+ }
lock_ReleaseMutex(&scp->mx);
cm_ReleaseBIOD(&biod, 1);
- cm_ReleaseSCache(scp);
+ cm_ReleaseSCache(scp);
return code;
}
AFSStoreStatus inStatus;
AFSVolSync volSync;
AFSFid tfid;
- long code;
- long truncPos;
- cm_conn_t *connp;
+ long code;
+ long truncPos;
+ cm_conn_t *connp;
struct rx_call *callp;
- /* Serialize StoreData RPC's; for rationale see cm_scache.c */
- (void) cm_SyncOp(scp, NULL, userp, reqp, 0,
+ /* Serialize StoreData RPC's; for rationale see cm_scache.c */
+ (void) cm_SyncOp(scp, NULL, userp, reqp, 0,
CM_SCACHESYNC_STOREDATA_EXCL);
- /* prepare the output status for the store */
- inStatus.Mask = AFS_SETMODTIME;
- inStatus.ClientModTime = scp->clientModTime;
- scp->mask &= ~CM_SCACHEMASK_CLIENTMODTIME;
+ /* prepare the output status for the store */
+ inStatus.Mask = AFS_SETMODTIME;
+ inStatus.ClientModTime = scp->clientModTime;
+ scp->mask &= ~CM_SCACHEMASK_CLIENTMODTIME;
- /* calculate truncation position */
+ /* calculate truncation position */
truncPos = scp->length.LowPart;
if ((scp->mask & CM_SCACHEMASK_TRUNCPOS)
&& scp->truncPos.LowPart < (unsigned long) truncPos)
truncPos = scp->truncPos.LowPart;
- scp->mask &= ~CM_SCACHEMASK_TRUNCPOS;
-
- lock_ReleaseMutex(&scp->mx);
+ scp->mask &= ~CM_SCACHEMASK_TRUNCPOS;
- cm_AFSFidFromFid(&tfid, &scp->fid);
+ lock_ReleaseMutex(&scp->mx);
+
+ cm_AFSFidFromFid(&tfid, &scp->fid);
/* now we're ready to do the store operation */
do {
- code = cm_Conn(&scp->fid, userp, reqp, &connp);
+ code = cm_Conn(&scp->fid, userp, reqp, &connp);
if (code)
continue;
- callp = rx_NewCall(connp->callp);
+ callp = rx_NewCall(connp->callp);
+ lock_ObtainMutex(&connp->mx);
code = StartRXAFS_StoreData(callp, &tfid, &inStatus,
0, 0, truncPos);
- if (code == 0)
- code = EndRXAFS_StoreData(callp, &outStatus, &volSync);
+ if (code == 0)
+ code = EndRXAFS_StoreData(callp, &outStatus, &volSync);
code = rx_EndCall(callp, code);
- } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync, NULL, NULL, code));
+
+ lock_ReleaseMutex(&connp->mx);
+
+ } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync, NULL, NULL, code));
code = cm_MapRPCError(code, reqp);
/* now, clean up our state */
lock_ObtainMutex(&scp->mx);
- cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_STOREDATA_EXCL);
+ cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_STOREDATA_EXCL);
- if (code == 0) {
- /*
- * For explanation of handling of CM_SCACHEMASK_LENGTH,
- * see cm_BufWrite().
- */
- if (outStatus.Length >= scp->length.LowPart)
+ if (code == 0) {
+ /*
+ * For explanation of handling of CM_SCACHEMASK_LENGTH,
+ * see cm_BufWrite().
+ */
+ if (outStatus.Length >= scp->length.LowPart)
scp->mask &= ~CM_SCACHEMASK_LENGTH;
- cm_MergeStatus(scp, &outStatus, &volSync, userp, 0);
- }
+ cm_MergeStatus(scp, &outStatus, &volSync, userp, 0);
+ }
- return code;
+ return code;
}
long cm_BufRead(cm_buf_t *bufp, long nbytes, long *bytesReadp, cm_user_t *userp)
{
- *bytesReadp = buf_bufferSize;
+ *bytesReadp = buf_bufferSize;
- /* now return a code that means that I/O is done */
+ /* now return a code that means that I/O is done */
return 0;
}
*/
long cm_BufStabilize(void *parmp, cm_user_t *userp, cm_req_t *reqp)
{
- cm_scache_t *scp;
+ cm_scache_t *scp;
long code;
scp = parmp;
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
code = cm_SyncOp(scp, NULL, userp, reqp, 0,
CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS | CM_SCACHESYNC_SETSIZE);
- if (code) {
- lock_ReleaseMutex(&scp->mx);
+ if (code) {
+ lock_ReleaseMutex(&scp->mx);
return code;
- }
+ }
return 0;
}
/* undoes the work that cm_BufStabilize does: releases lock so things can change again */
long cm_BufUnstabilize(void *parmp, cm_user_t *userp)
{
- cm_scache_t *scp;
+ cm_scache_t *scp;
scp = parmp;
lock_ReleaseMutex(&scp->mx);
- /* always succeeds */
+ /* always succeeds */
return 0;
}
cm_buf_ops_t cm_bufOps = {
- cm_BufWrite,
+ cm_BufWrite,
cm_BufRead,
cm_BufStabilize,
cm_BufUnstabilize
int cm_InitDCache(long chunkSize, long nbuffers)
{
- lock_InitializeMutex(&cm_bufGetMutex, "buf_Get mutex");
- if (nbuffers)
+ lock_InitializeMutex(&cm_bufGetMutex, "buf_Get mutex");
+ if (nbuffers)
buf_nbuffers = nbuffers;
- return buf_Init(&cm_bufOps);
+ return buf_Init(&cm_bufOps);
}
/* check to see if we have an up-to-date buffer. The buffer must have
*/
int cm_HaveBuffer(cm_scache_t *scp, cm_buf_t *bufp, int isBufLocked)
{
- int code;
- if (!cm_HaveCallback(scp))
- return 0;
- if ((bufp->cmFlags
- & (CM_BUF_CMFETCHING | CM_BUF_CMFULLYFETCHED))
- == (CM_BUF_CMFETCHING | CM_BUF_CMFULLYFETCHED))
- return 1;
- if (bufp->dataVersion == scp->dataVersion)
- return 1;
- if (!isBufLocked) {
- code = lock_TryMutex(&bufp->mx);
+ int code;
+ if (!cm_HaveCallback(scp))
+ return 0;
+ if ((bufp->cmFlags
+ & (CM_BUF_CMFETCHING | CM_BUF_CMFULLYFETCHED))
+ == (CM_BUF_CMFETCHING | CM_BUF_CMFULLYFETCHED))
+ return 1;
+ if (bufp->dataVersion == scp->dataVersion)
+ return 1;
+ if (!isBufLocked) {
+ code = lock_TryMutex(&bufp->mx);
if (code == 0) {
- /* don't have the lock, and can't lock it, then
+ /* don't have the lock, and can't lock it, then
* return failure.
*/
return 0;
}
}
- /* remember dirty flag for later */
- code = bufp->flags & CM_BUF_DIRTY;
+ /* remember dirty flag for later */
+ code = bufp->flags & CM_BUF_DIRTY;
- /* release lock if we obtained it here */
- if (!isBufLocked)
+ /* release lock if we obtained it here */
+ if (!isBufLocked)
lock_ReleaseMutex(&bufp->mx);
- /* if buffer was dirty, buffer is acceptable for use */
- if (code)
- return 1;
- else
- return 0;
+ /* if buffer was dirty, buffer is acceptable for use */
+ if (code)
+ return 1;
+ else
+ return 0;
}
/* used when deciding whether to do a prefetch or not */
long cm_CheckFetchRange(cm_scache_t *scp, osi_hyper_t *startBasep, long length,
- cm_user_t *up, cm_req_t *reqp, osi_hyper_t *realBasep)
+ cm_user_t *up, cm_req_t *reqp, osi_hyper_t *realBasep)
{
- osi_hyper_t toffset;
+ osi_hyper_t toffset;
osi_hyper_t tbase;
long code;
cm_buf_t *bp;
/* now scan all buffers in the range, looking for any that look like
* they need work.
*/
- tbase = *startBasep;
- stop = 0;
- lock_ObtainMutex(&scp->mx);
+ tbase = *startBasep;
+ stop = 0;
+ lock_ObtainMutex(&scp->mx);
while(length > 0) {
- /* get callback so we can do a meaningful dataVersion comparison */
+ /* get callback so we can do a meaningful dataVersion comparison */
code = cm_SyncOp(scp, NULL, up, reqp, 0,
CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
- if (code) {
- scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
- lock_ReleaseMutex(&scp->mx);
+ if (code) {
+ scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
+ lock_ReleaseMutex(&scp->mx);
return code;
}
if (LargeIntegerGreaterThanOrEqualTo(tbase, scp->length)) {
- /* we're past the end of file */
+ /* we're past the end of file */
break;
}
- bp = buf_Find(scp, &tbase);
- /* We cheat slightly by not locking the bp mutex. */
+ bp = buf_Find(scp, &tbase);
+ /* We cheat slightly by not locking the bp mutex. */
if (bp) {
if ((bp->cmFlags
- & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING)) == 0
+ & (CM_BUF_CMFETCHING | CM_BUF_CMSTORING)) == 0
&& bp->dataVersion != scp->dataVersion)
stop = 1;
buf_Release(bp);
- }
+ }
else
stop = 1;
- /* if this buffer is essentially guaranteed to require a fetch,
+ /* if this buffer is essentially guaranteed to require a fetch,
* break out here and return this position.
*/
if (stop)
* particular buffer in the range that definitely needs to be fetched.
*/
if (stop == 0) {
- /* return non-zero code since realBasep won't be valid */
- scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
- code = -1;
- }
+ /* return non-zero code since realBasep won't be valid */
+ scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
+ code = -1;
+ }
else {
- /* successfully found a page that will need fetching */
- *realBasep = tbase;
+ /* successfully found a page that will need fetching */
+ *realBasep = tbase;
code = 0;
}
lock_ReleaseMutex(&scp->mx);
}
void cm_BkgStore(cm_scache_t *scp, long p1, long p2, long p3, long p4,
- cm_user_t *userp)
+ cm_user_t *userp)
{
- osi_hyper_t toffset;
+ osi_hyper_t toffset;
long length;
- cm_req_t req;
+ cm_req_t req;
- cm_InitReq(&req);
- req.flags |= CM_REQ_NORETRY;
+ cm_InitReq(&req);
+ req.flags |= CM_REQ_NORETRY;
toffset.LowPart = p1;
toffset.HighPart = p2;
length = p3;
- osi_Log2(afsd_logp, "Starting BKG store vp 0x%x, base 0x%x", scp, p1);
+ osi_Log2(afsd_logp, "Starting BKG store vp 0x%x, base 0x%x", scp, p1);
- cm_BufWrite(&scp->fid, &toffset, length, /* flags */ 0, userp, &req);
+ cm_BufWrite(&scp->fid, &toffset, length, /* flags */ 0, userp, &req);
- lock_ObtainMutex(&scp->mx);
- cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_ASYNCSTORE);
+ lock_ObtainMutex(&scp->mx);
+ cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_ASYNCSTORE);
lock_ReleaseMutex(&scp->mx);
}
void cm_ClearPrefetchFlag(long code, cm_scache_t *scp, osi_hyper_t *base)
{
- osi_hyper_t thyper;
-
- if (code == 0) {
- thyper.LowPart = cm_chunkSize;
- thyper.HighPart = 0;
- thyper = LargeIntegerAdd(*base, thyper);
- thyper.LowPart &= (-cm_chunkSize);
- if (LargeIntegerGreaterThan(*base, scp->prefetch.base))
+ osi_hyper_t thyper;
+
+ if (code == 0) {
+ thyper.LowPart = cm_chunkSize;
+ thyper.HighPart = 0;
+ thyper = LargeIntegerAdd(*base, thyper);
+ thyper.LowPart &= (-cm_chunkSize);
+ if (LargeIntegerGreaterThan(*base, scp->prefetch.base))
scp->prefetch.base = *base;
- if (LargeIntegerGreaterThan(thyper, scp->prefetch.end))
+ if (LargeIntegerGreaterThan(thyper, scp->prefetch.end))
scp->prefetch.end = thyper;
- }
- scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
+ }
+ scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
}
/* do the prefetch */
void cm_BkgPrefetch(cm_scache_t *scp, long p1, long p2, long p3, long p4,
- cm_user_t *userp)
+ cm_user_t *userp)
{
- long length;
+ long length;
osi_hyper_t base;
long code;
cm_buf_t *bp;
- int cpff = 0; /* cleared prefetch flag */
- cm_req_t req;
+ int cpff = 0; /* cleared prefetch flag */
+ cm_req_t req;
- cm_InitReq(&req);
- req.flags |= CM_REQ_NORETRY;
+ cm_InitReq(&req);
+ req.flags |= CM_REQ_NORETRY;
- base.LowPart = p1;
+ base.LowPart = p1;
base.HighPart = p2;
length = p3;
- osi_Log2(afsd_logp, "Starting BKG prefetch vp 0x%x, base 0x%x", scp, p1);
+ osi_Log2(afsd_logp, "Starting BKG prefetch vp 0x%x, base 0x%x", scp, p1);
code = buf_Get(scp, &base, &bp);
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
if (code || (bp->cmFlags & CM_BUF_CMFETCHING)) {
- scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
- lock_ReleaseMutex(&scp->mx);
- return;
- }
+ scp->flags &= ~CM_SCACHEFLAG_PREFETCHING;
+ lock_ReleaseMutex(&scp->mx);
+ return;
+ }
code = cm_GetBuffer(scp, bp, &cpff, userp, &req);
- if (!cpff)
+ if (!cpff)
cm_ClearPrefetchFlag(code, scp, &base);
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
buf_Release(bp);
return;
}
* do a prefetch.
*/
void cm_ConsiderPrefetch(cm_scache_t *scp, osi_hyper_t *offsetp,
- cm_user_t *userp, cm_req_t *reqp)
+ cm_user_t *userp, cm_req_t *reqp)
{
- long code;
+ long code;
osi_hyper_t realBase;
osi_hyper_t readBase;
readBase = *offsetp;
- /* round up to chunk boundary */
- readBase.LowPart += (cm_chunkSize-1);
- readBase.LowPart &= (-cm_chunkSize);
+ /* round up to chunk boundary */
+ readBase.LowPart += (cm_chunkSize-1);
+ readBase.LowPart &= (-cm_chunkSize);
- lock_ObtainMutex(&scp->mx);
- if ((scp->flags & CM_SCACHEFLAG_PREFETCHING)
+ lock_ObtainMutex(&scp->mx);
+ if ((scp->flags & CM_SCACHEFLAG_PREFETCHING)
|| LargeIntegerLessThanOrEqualTo(readBase, scp->prefetch.base)) {
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
return;
- }
- scp->flags |= CM_SCACHEFLAG_PREFETCHING;
+ }
+ scp->flags |= CM_SCACHEFLAG_PREFETCHING;
- /* start the scan at the latter of the end of this read or
+ /* start the scan at the latter of the end of this read or
* the end of the last fetched region.
*/
- if (LargeIntegerGreaterThan(scp->prefetch.end, readBase))
+ if (LargeIntegerGreaterThan(scp->prefetch.end, readBase))
readBase = scp->prefetch.end;
lock_ReleaseMutex(&scp->mx);
code = cm_CheckFetchRange(scp, &readBase, cm_chunkSize, userp, reqp,
- &realBase);
- if (code)
+ &realBase);
+ if (code)
return; /* can't find something to prefetch */
osi_Log2(afsd_logp, "BKG Prefetch request vp 0x%x, base 0x%x",
* is being written out.
*/
long cm_SetupStoreBIOD(cm_scache_t *scp, osi_hyper_t *inOffsetp, long inSize,
- cm_bulkIO_t *biop, cm_user_t *userp, cm_req_t *reqp)
+ cm_bulkIO_t *biop, cm_user_t *userp, cm_req_t *reqp)
{
cm_buf_t *bufp;
osi_queueData_t *qdp;
long code;
long flags; /* flags to cm_SyncOp */
- /* clear things out */
- biop->scp = scp; /* don't hold */
+ /* clear things out */
+ biop->scp = scp; /* don't hold */
biop->offset = *inOffsetp;
biop->length = 0;
biop->bufListp = NULL;
biop->bufListEndp = NULL;
- biop->reserved = 0;
+ biop->reserved = 0;
- /* reserve a chunk's worth of buffers */
- lock_ReleaseMutex(&scp->mx);
- buf_ReserveBuffers(cm_chunkSize / buf_bufferSize);
- lock_ObtainMutex(&scp->mx);
+ /* reserve a chunk's worth of buffers */
+ lock_ReleaseMutex(&scp->mx);
+ buf_ReserveBuffers(cm_chunkSize / buf_bufferSize);
+ lock_ObtainMutex(&scp->mx);
bufp = NULL;
- for(temp = 0; temp < inSize; temp += buf_bufferSize, bufp = NULL) {
- thyper.HighPart = 0;
- thyper.LowPart = temp;
+ for (temp = 0; temp < inSize; temp += buf_bufferSize, bufp = NULL) {
+ thyper.HighPart = 0;
+ thyper.LowPart = temp;
tbase = LargeIntegerAdd(*inOffsetp, thyper);
bufp = buf_Find(scp, &tbase);
if (bufp) {
- /* get buffer mutex and scp mutex safely */
- lock_ReleaseMutex(&scp->mx);
- lock_ObtainMutex(&bufp->mx);
- lock_ObtainMutex(&scp->mx);
-
- flags = CM_SCACHESYNC_NEEDCALLBACK
- | CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_STOREDATA
- | CM_SCACHESYNC_BUFLOCKED;
- code = cm_SyncOp(scp, bufp, userp, reqp, 0, flags);
+ /* get buffer mutex and scp mutex safely */
+ lock_ReleaseMutex(&scp->mx);
+ lock_ObtainMutex(&bufp->mx);
+ lock_ObtainMutex(&scp->mx);
+
+ flags = CM_SCACHESYNC_NEEDCALLBACK
+ | CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_STOREDATA
+ | CM_SCACHESYNC_BUFLOCKED;
+ code = cm_SyncOp(scp, bufp, userp, reqp, 0, flags);
if (code) {
- lock_ReleaseMutex(&bufp->mx);
+ lock_ReleaseMutex(&bufp->mx);
buf_Release(bufp);
- buf_UnreserveBuffers(cm_chunkSize / buf_bufferSize);
+ buf_UnreserveBuffers(cm_chunkSize / buf_bufferSize);
return code;
- }
+ }
- /* if the buffer is dirty, we're done */
+ /* if the buffer is dirty, we're done */
if (bufp->flags & CM_BUF_DIRTY) {
osi_assertx(!(bufp->flags & CM_BUF_WRITING),
"WRITING w/o CMSTORING in SetupStoreBIOD");
- bufp->flags |= CM_BUF_WRITING;
- break;
+ bufp->flags |= CM_BUF_WRITING;
+ break;
}
- /* this buffer is clean, so there's no reason to process it */
- cm_SyncOpDone(scp, bufp, flags);
- lock_ReleaseMutex(&bufp->mx);
- buf_Release(bufp);
- }
+ /* this buffer is clean, so there's no reason to process it */
+ cm_SyncOpDone(scp, bufp, flags);
+ lock_ReleaseMutex(&bufp->mx);
+ buf_Release(bufp);
+ }
}
- biop->reserved = 1;
+ biop->reserved = 1;
/* if we get here, if bufp is null, we didn't find any dirty buffers
- * that weren't already being stored back, so we just quit now.
+ * that weren't already being stored back, so we just quit now.
*/
- if (!bufp) {
- return 0;
- }
+ if (!bufp) {
+ return 0;
+ }
- /* don't need buffer mutex any more */
- lock_ReleaseMutex(&bufp->mx);
+ /* don't need buffer mutex any more */
+ lock_ReleaseMutex(&bufp->mx);
- /* put this element in the list */
+ /* put this element in the list */
qdp = osi_QDAlloc();
osi_SetQData(qdp, bufp);
- /* don't have to hold bufp, since held by buf_Find above */
+ /* don't have to hold bufp, since held by buf_Find above */
osi_QAddH((osi_queue_t **) &biop->bufListp,
(osi_queue_t **) &biop->bufListEndp,
&qdp->q);
firstModOffset = bufp->offset;
biop->offset = firstModOffset;
- /* compute the window surrounding *inOffsetp of size cm_chunkSize */
- scanStart = *inOffsetp;
+ /* compute the window surrounding *inOffsetp of size cm_chunkSize */
+ scanStart = *inOffsetp;
scanStart.LowPart &= (-cm_chunkSize);
- thyper.LowPart = cm_chunkSize;
+ thyper.LowPart = cm_chunkSize;
thyper.HighPart = 0;
- scanEnd = LargeIntegerAdd(scanStart, thyper);
+ scanEnd = LargeIntegerAdd(scanStart, thyper);
- flags = CM_SCACHESYNC_NEEDCALLBACK
- | CM_SCACHESYNC_GETSTATUS
+ flags = CM_SCACHESYNC_NEEDCALLBACK
+ | CM_SCACHESYNC_GETSTATUS
| CM_SCACHESYNC_STOREDATA
| CM_SCACHESYNC_BUFLOCKED
| CM_SCACHESYNC_NOWAIT;
- /* start by looking backwards until scanStart */
- thyper.HighPart = 0; /* hyper version of buf_bufferSize */
+ /* start by looking backwards until scanStart */
+ thyper.HighPart = 0; /* hyper version of buf_bufferSize */
thyper.LowPart = buf_bufferSize;
- tbase = LargeIntegerSubtract(firstModOffset, thyper);
+ tbase = LargeIntegerSubtract(firstModOffset, thyper);
while(LargeIntegerGreaterThanOrEqualTo(tbase, scanStart)) {
/* see if we can find the buffer */
- bufp = buf_Find(scp, &tbase);
+ bufp = buf_Find(scp, &tbase);
if (!bufp)
break;
- /* try to lock it, and quit if we can't (simplifies locking) */
+ /* try to lock it, and quit if we can't (simplifies locking) */
code = lock_TryMutex(&bufp->mx);
if (code == 0) {
- buf_Release(bufp);
+ buf_Release(bufp);
break;
}
code = cm_SyncOp(scp, bufp, userp, reqp, 0, flags);
if (code) {
- lock_ReleaseMutex(&bufp->mx);
- buf_Release(bufp);
+ lock_ReleaseMutex(&bufp->mx);
+ buf_Release(bufp);
break;
}
- if (!(bufp->flags & CM_BUF_DIRTY)) {
- /* buffer is clean, so we shouldn't add it */
- cm_SyncOpDone(scp, bufp, flags);
- lock_ReleaseMutex(&bufp->mx);
- buf_Release(bufp);
+ if (!(bufp->flags & CM_BUF_DIRTY)) {
+ /* buffer is clean, so we shouldn't add it */
+ cm_SyncOpDone(scp, bufp, flags);
+ lock_ReleaseMutex(&bufp->mx);
+ buf_Release(bufp);
break;
}
- /* don't need buffer mutex any more */
- lock_ReleaseMutex(&bufp->mx);
+ /* don't need buffer mutex any more */
+ lock_ReleaseMutex(&bufp->mx);
/* we have a dirty buffer ready for storing. Add it to the tail
* of the list, since it immediately precedes all of the disk
* addresses we've already collected.
*/
- qdp = osi_QDAlloc();
+ qdp = osi_QDAlloc();
osi_SetQData(qdp, bufp);
/* no buf_hold necessary, since we have it held from buf_Find */
osi_QAddT((osi_queue_t **) &biop->bufListp,
(osi_queue_t **) &biop->bufListEndp,
&qdp->q);
- /* update biod info describing the transfer */
+ /* update biod info describing the transfer */
biop->offset = LargeIntegerSubtract(biop->offset, thyper);
biop->length += buf_bufferSize;
tbase = LargeIntegerSubtract(tbase, thyper);
} /* while loop looking for pages preceding the one we found */
- /* now, find later dirty, contiguous pages, and add them to the list */
- thyper.HighPart = 0; /* hyper version of buf_bufferSize */
+ /* now, find later dirty, contiguous pages, and add them to the list */
+ thyper.HighPart = 0; /* hyper version of buf_bufferSize */
thyper.LowPart = buf_bufferSize;
- tbase = LargeIntegerAdd(firstModOffset, thyper);
+ tbase = LargeIntegerAdd(firstModOffset, thyper);
while(LargeIntegerLessThan(tbase, scanEnd)) {
- /* see if we can find the buffer */
- bufp = buf_Find(scp, &tbase);
+ /* see if we can find the buffer */
+ bufp = buf_Find(scp, &tbase);
if (!bufp)
break;
- /* try to lock it, and quit if we can't (simplifies locking) */
+ /* try to lock it, and quit if we can't (simplifies locking) */
code = lock_TryMutex(&bufp->mx);
if (code == 0) {
- buf_Release(bufp);
+ buf_Release(bufp);
break;
}
code = cm_SyncOp(scp, bufp, userp, reqp, 0, flags);
if (code) {
- lock_ReleaseMutex(&bufp->mx);
- buf_Release(bufp);
+ lock_ReleaseMutex(&bufp->mx);
+ buf_Release(bufp);
break;
}
- if (!(bufp->flags & CM_BUF_DIRTY)) {
- /* buffer is clean, so we shouldn't add it */
- cm_SyncOpDone(scp, bufp, flags);
- lock_ReleaseMutex(&bufp->mx);
- buf_Release(bufp);
+ if (!(bufp->flags & CM_BUF_DIRTY)) {
+ /* buffer is clean, so we shouldn't add it */
+ cm_SyncOpDone(scp, bufp, flags);
+ lock_ReleaseMutex(&bufp->mx);
+ buf_Release(bufp);
break;
}
- /* don't need buffer mutex any more */
- lock_ReleaseMutex(&bufp->mx);
+ /* don't need buffer mutex any more */
+ lock_ReleaseMutex(&bufp->mx);
/* we have a dirty buffer ready for storing. Add it to the head
* of the list, since it immediately follows all of the disk
* addresses we've already collected.
*/
- qdp = osi_QDAlloc();
+ qdp = osi_QDAlloc();
osi_SetQData(qdp, bufp);
/* no buf_hold necessary, since we have it held from buf_Find */
osi_QAddH((osi_queue_t **) &biop->bufListp,
(osi_queue_t **) &biop->bufListEndp,
&qdp->q);
- /* update biod info describing the transfer */
+ /* update biod info describing the transfer */
biop->length += buf_bufferSize;
/* update loop pointer */
long cm_SetupFetchBIOD(cm_scache_t *scp, osi_hyper_t *offsetp,
cm_bulkIO_t *biop, cm_user_t *up, cm_req_t *reqp)
{
- long code;
+ long code;
cm_buf_t *tbp;
osi_hyper_t toffset; /* a long long temp variable */
osi_hyper_t pageBase; /* base offset we're looking at */
osi_hyper_t fileSize; /* the # of bytes in the file */
osi_queueData_t *heldBufListp; /* we hold all buffers in this list */
osi_queueData_t *heldBufListEndp; /* first one */
- int reserving;
+ int reserving;
biop->scp = scp;
biop->offset = *offsetp;
- /* null out the list of buffers */
+ /* null out the list of buffers */
biop->bufListp = biop->bufListEndp = NULL;
- biop->reserved = 0;
+ biop->reserved = 0;
- /* first lookup the file's length, so we know when to stop */
+ /* first lookup the file's length, so we know when to stop */
code = cm_SyncOp(scp, NULL, up, reqp, 0,
CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
if (code)
return code;
- /* copy out size, since it may change */
+ /* copy out size, since it may change */
fileSize = scp->serverLength;
lock_ReleaseMutex(&scp->mx);
- pageBase = *offsetp;
+ pageBase = *offsetp;
collected = pageBase.LowPart & (cm_chunkSize - 1);
heldBufListp = NULL;
heldBufListEndp = NULL;
- /*
- * Obtaining buffers can cause dirty buffers to be recycled, which
- * can cause a storeback, so cannot be done while we have buffers
- * reserved.
- *
- * To get around this, we get buffers twice. Before reserving buffers,
- * we obtain and release each one individually. After reserving
- * buffers, we try to obtain them again, but only by lookup, not by
- * recycling. If a buffer has gone away while we were waiting for
- * the others, we just use whatever buffers we already have.
- *
- * On entry to this function, we are already holding a buffer, so we
- * can't wait for reservation. So we call buf_TryReserveBuffers()
- * instead. Not only that, we can't really even call buf_Get(), for
- * the same reason. We can't avoid that, though. To avoid deadlock
- * we allow only one thread to be executing the buf_Get()-buf_Release()
- * sequence at a time.
- */
-
- /* first hold all buffers, since we can't hold any locks in buf_Get */
+ /*
+ * Obtaining buffers can cause dirty buffers to be recycled, which
+ * can cause a storeback, so cannot be done while we have buffers
+ * reserved.
+ *
+ * To get around this, we get buffers twice. Before reserving buffers,
+ * we obtain and release each one individually. After reserving
+ * buffers, we try to obtain them again, but only by lookup, not by
+ * recycling. If a buffer has gone away while we were waiting for
+ * the others, we just use whatever buffers we already have.
+ *
+ * On entry to this function, we are already holding a buffer, so we
+ * can't wait for reservation. So we call buf_TryReserveBuffers()
+ * instead. Not only that, we can't really even call buf_Get(), for
+ * the same reason. We can't avoid that, though. To avoid deadlock
+ * we allow only one thread to be executing the buf_Get()-buf_Release()
+ * sequence at a time.
+ */
+
+ /* first hold all buffers, since we can't hold any locks in buf_Get */
while (1) {
- /* stop at chunk boundary */
- if (collected >= cm_chunkSize) break;
+ /* stop at chunk boundary */
+ if (collected >= cm_chunkSize) break;
/* see if the next page would be past EOF */
if (LargeIntegerGreaterThanOrEqualTo(pageBase, fileSize)) break;
- lock_ObtainMutex(&cm_bufGetMutex);
+ lock_ObtainMutex(&cm_bufGetMutex);
- code = buf_Get(scp, &pageBase, &tbp);
+ code = buf_Get(scp, &pageBase, &tbp);
if (code) {
- lock_ReleaseMutex(&cm_bufGetMutex);
- lock_ObtainMutex(&scp->mx);
- return code;
- }
+ lock_ReleaseMutex(&cm_bufGetMutex);
+ lock_ObtainMutex(&scp->mx);
+ return code;
+ }
- buf_Release(tbp);
+ buf_Release(tbp);
- lock_ReleaseMutex(&cm_bufGetMutex);
+ lock_ReleaseMutex(&cm_bufGetMutex);
toffset.HighPart = 0;
toffset.LowPart = buf_bufferSize;
pageBase = LargeIntegerAdd(toffset, pageBase);
- collected += buf_bufferSize;
+ collected += buf_bufferSize;
}
/* reserve a chunk's worth of buffers if possible */
- reserving = buf_TryReserveBuffers(cm_chunkSize / buf_bufferSize);
+ reserving = buf_TryReserveBuffers(cm_chunkSize / buf_bufferSize);
- pageBase = *offsetp;
+ pageBase = *offsetp;
collected = pageBase.LowPart & (cm_chunkSize - 1);
- /* now hold all buffers, if they are still there */
+ /* now hold all buffers, if they are still there */
while (1) {
- /* stop at chunk boundary */
- if (collected >= cm_chunkSize)
+ /* stop at chunk boundary */
+ if (collected >= cm_chunkSize)
break;
/* see if the next page would be past EOF */
break;
tbp = buf_Find(scp, &pageBase);
- if (!tbp)
+ if (!tbp)
break;
/* add the buffer to the list */
- qdp = osi_QDAlloc();
+ qdp = osi_QDAlloc();
osi_SetQData(qdp, tbp);
osi_QAdd((osi_queue_t **)&heldBufListp, &qdp->q);
if (!heldBufListEndp) heldBufListEndp = qdp;
- /* leave tbp held (from buf_Get) */
+ /* leave tbp held (from buf_Get) */
- if (!reserving)
+ if (!reserving)
break;
collected += buf_bufferSize;
}
/* look at each buffer, adding it into the list if it looks idle and
- * filled with old data. One special case: wait for idle if it is the
- * first buffer since we really need that one for our caller to make
- * any progress.
+ * filled with old data. One special case: wait for idle if it is the
+ * first buffer since we really need that one for our caller to make
+ * any progress.
*/
isFirst = 1;
collected = 0; /* now count how many we'll really use */
- for(tqdp = heldBufListEndp;
+ for (tqdp = heldBufListEndp;
tqdp;
- tqdp = (osi_queueData_t *) osi_QPrev(&tqdp->q)) {
- /* get a ptr to the held buffer */
- tbp = osi_GetQData(tqdp);
+ tqdp = (osi_queueData_t *) osi_QPrev(&tqdp->q)) {
+ /* get a ptr to the held buffer */
+ tbp = osi_GetQData(tqdp);
pageBase = tbp->offset;
- /* now lock the buffer lock */
- lock_ObtainMutex(&tbp->mx);
- lock_ObtainMutex(&scp->mx);
+ /* now lock the buffer lock */
+ lock_ObtainMutex(&tbp->mx);
+ lock_ObtainMutex(&scp->mx);
- /* don't bother fetching over data that is already current */
- if (tbp->dataVersion == scp->dataVersion) {
- /* we don't need this buffer, since it is current */
- lock_ReleaseMutex(&scp->mx);
+ /* don't bother fetching over data that is already current */
+ if (tbp->dataVersion == scp->dataVersion) {
+ /* we don't need this buffer, since it is current */
+ lock_ReleaseMutex(&scp->mx);
lock_ReleaseMutex(&tbp->mx);
break;
}
- flags = CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_FETCHDATA
- | CM_SCACHESYNC_BUFLOCKED;
- if (!isFirst)
+ flags = CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_FETCHDATA
+ | CM_SCACHESYNC_BUFLOCKED;
+ if (!isFirst)
flags |= CM_SCACHESYNC_NOWAIT;
- /* wait for the buffer to serialize, if required. Doesn't
- * release the scp or buffer lock(s) if NOWAIT is specified.
+ /* wait for the buffer to serialize, if required. Doesn't
+ * release the scp or buffer lock(s) if NOWAIT is specified.
*/
- code = cm_SyncOp(scp, tbp, up, reqp, 0, flags);
+ code = cm_SyncOp(scp, tbp, up, reqp, 0, flags);
if (code) {
- lock_ReleaseMutex(&scp->mx);
- lock_ReleaseMutex(&tbp->mx);
+ lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&tbp->mx);
break;
- }
+ }
- /* don't fetch over dirty buffers */
+ /* don't fetch over dirty buffers */
if (tbp->flags & CM_BUF_DIRTY) {
- cm_SyncOpDone(scp, tbp, flags);
- lock_ReleaseMutex(&scp->mx);
+ cm_SyncOpDone(scp, tbp, flags);
+ lock_ReleaseMutex(&scp->mx);
lock_ReleaseMutex(&tbp->mx);
break;
- }
+ }
- /* Release locks */
- lock_ReleaseMutex(&scp->mx);
- lock_ReleaseMutex(&tbp->mx);
+ /* Release locks */
+ lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&tbp->mx);
/* add the buffer to the list */
- qdp = osi_QDAlloc();
+ qdp = osi_QDAlloc();
osi_SetQData(qdp, tbp);
osi_QAdd((osi_queue_t **)&biop->bufListp, &qdp->q);
if (!biop->bufListEndp)
biop->bufListEndp = qdp;
- buf_Hold(tbp);
+ buf_Hold(tbp);
- /* from now on, a failure just stops our collection process, but
+ /* from now on, a failure just stops our collection process, but
* we still do the I/O to whatever we've already managed to collect.
*/
isFirst = 0;
}
/* now, we've held in biop->bufListp all the buffer's we're really
- * interested in. We also have holds left from heldBufListp, and we
- * now release those holds on the buffers.
+ * interested in. We also have holds left from heldBufListp, and we
+ * now release those holds on the buffers.
*/
- for(qdp = heldBufListp; qdp; qdp = tqdp) {
- tqdp = (osi_queueData_t *) osi_QNext(&qdp->q);
- tbp = osi_GetQData(qdp);
+ for (qdp = heldBufListp; qdp; qdp = tqdp) {
+ tqdp = (osi_queueData_t *) osi_QNext(&qdp->q);
+ tbp = osi_GetQData(qdp);
osi_QDFree(qdp);
buf_Release(tbp);
}
- /* Caller expects this */
- lock_ObtainMutex(&scp->mx);
+ /* Caller expects this */
+ lock_ObtainMutex(&scp->mx);
- /* if we got a failure setting up the first buffer, then we don't have
+ /* if we got a failure setting up the first buffer, then we don't have
* any side effects yet, and we also have failed an operation that the
* caller requires to make any progress. Give up now.
*/
if (code && isFirst) {
- buf_UnreserveBuffers(cm_chunkSize / buf_bufferSize);
- return code;
- }
+ buf_UnreserveBuffers(cm_chunkSize / buf_bufferSize);
+ return code;
+ }
/* otherwise, we're still OK, and should just return the I/O setup we've
* got.
*/
- biop->length = collected;
- biop->reserved = reserving;
+ biop->length = collected;
+ biop->reserved = reserving;
return 0;
}
*/
void cm_ReleaseBIOD(cm_bulkIO_t *biop, int isStore)
{
- cm_scache_t *scp;
+ cm_scache_t *scp;
cm_buf_t *bufp;
osi_queueData_t *qdp;
osi_queueData_t *nqdp;
int flags;
- /* Give back reserved buffers */
- if (biop->reserved)
- buf_UnreserveBuffers(cm_chunkSize / buf_bufferSize);
+ /* Give back reserved buffers */
+ if (biop->reserved)
+ buf_UnreserveBuffers(cm_chunkSize / buf_bufferSize);
- flags = CM_SCACHESYNC_NEEDCALLBACK;
+ flags = CM_SCACHESYNC_NEEDCALLBACK;
if (isStore)
flags |= CM_SCACHESYNC_STOREDATA;
- else
- flags |= CM_SCACHESYNC_FETCHDATA;
+ else
+ flags |= CM_SCACHESYNC_FETCHDATA;
- scp = biop->scp;
+ scp = biop->scp;
for(qdp = biop->bufListp; qdp; qdp = nqdp) {
- /* lookup next guy first, since we're going to free this one */
- nqdp = (osi_queueData_t *) osi_QNext(&qdp->q);
+ /* lookup next guy first, since we're going to free this one */
+ nqdp = (osi_queueData_t *) osi_QNext(&qdp->q);
- /* extract buffer and free queue data */
+ /* extract buffer and free queue data */
bufp = osi_GetQData(qdp);
osi_QDFree(qdp);
/* now, mark I/O as done, unlock the buffer and release it */
- lock_ObtainMutex(&bufp->mx);
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&bufp->mx);
+ lock_ObtainMutex(&scp->mx);
cm_SyncOpDone(scp, bufp, flags);
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
- /* turn off writing and wakeup users */
+ /* turn off writing and wakeup users */
if (isStore) {
if (bufp->flags & CM_BUF_WAITING) {
- osi_Wakeup((long) bufp);
+ osi_Wakeup((long) bufp);
}
bufp->flags &= ~(CM_BUF_WAITING | CM_BUF_WRITING | CM_BUF_DIRTY);
}
* The scp is locked on return.
*/
long cm_GetBuffer(cm_scache_t *scp, cm_buf_t *bufp, int *cpffp, cm_user_t *up,
- cm_req_t *reqp)
+ cm_req_t *reqp)
{
- long code;
+ long code;
long nbytes; /* bytes in transfer */
long rbytes; /* bytes in rx_Read call */
long temp;
struct rx_call *callp;
cm_bulkIO_t biod; /* bulk IO descriptor */
cm_conn_t *connp;
- int getroot;
- long t1, t2;
+ int getroot;
+ long t1, t2;
/* now, the buffer may or may not be filled with good data (buf_GetNew
* drops lots of locks, and may indeed return a properly initialized
#ifdef AFS_FREELANCE_CLIENT
- // yj: if they're trying to get the /afs directory, we need to
- // handle it differently, since it's local rather than on any
- // server
+ // yj: if they're trying to get the /afs directory, we need to
+ // handle it differently, since it's local rather than on any
+ // server
- getroot = (scp==cm_rootSCachep);
- if (getroot)
- osi_Log1(afsd_logp,"GetBuffer returns cm_rootSCachep=%x",cm_rootSCachep);
+ getroot = (scp==cm_rootSCachep);
+ if (getroot)
+ osi_Log1(afsd_logp,"GetBuffer returns cm_rootSCachep=%x",cm_rootSCachep);
#endif
- cm_AFSFidFromFid(&tfid, &scp->fid);
+ cm_AFSFidFromFid(&tfid, &scp->fid);
- code = cm_SetupFetchBIOD(scp, &bufp->offset, &biod, up, reqp);
- if (code) {
- /* couldn't even get the first page setup properly */
- osi_Log1(afsd_logp, "SetupFetchBIOD failure code %d", code);
+ code = cm_SetupFetchBIOD(scp, &bufp->offset, &biod, up, reqp);
+ if (code) {
+ /* couldn't even get the first page setup properly */
+ osi_Log1(afsd_logp, "SetupFetchBIOD failure code %d", code);
return code;
- }
+ }
/* once we get here, we have the callback in place, we know that no one
- * is fetching the data now. Check one last time that we still have
- * the wrong data, and then fetch it if we're still wrong.
- *
+ * is fetching the data now. Check one last time that we still have
+ * the wrong data, and then fetch it if we're still wrong.
+ *
* We can lose a race condition and end up with biod.length zero, in
- * which case we just retry.
+ * which case we just retry.
*/
if (bufp->dataVersion == scp->dataVersion || biod.length == 0) {
- osi_Log3(afsd_logp, "Bad DVs %d, %d or length 0x%x",
+ osi_Log3(afsd_logp, "Bad DVs %d, %d or length 0x%x",
bufp->dataVersion, scp->dataVersion, biod.length);
- if ((bufp->dataVersion == -1
- || bufp->dataVersion < scp->dataVersion)
+ if ((bufp->dataVersion == -1
+ || bufp->dataVersion < scp->dataVersion)
&& LargeIntegerGreaterThanOrEqualTo(bufp->offset,
scp->serverLength)) {
- if (bufp->dataVersion == -1)
- memset(bufp->datap, 0, buf_bufferSize);
- bufp->dataVersion = scp->dataVersion;
- }
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseBIOD(&biod, 0);
- lock_ObtainMutex(&scp->mx);
+ if (bufp->dataVersion == -1)
+ memset(bufp->datap, 0, buf_bufferSize);
+ bufp->dataVersion = scp->dataVersion;
+ }
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseBIOD(&biod, 0);
+ lock_ObtainMutex(&scp->mx);
return 0;
}
#ifdef AFS_FREELANCE_CLIENT
- // yj code
- // if getroot then we don't need to make any calls
- // just return fake data
+ // yj code
+ // if getroot then we don't need to make any calls
+ // just return fake data
- if (cm_freelanceEnabled && getroot) {
- // setup the fake status
- afsStatus.InterfaceVersion = 0x1;
- afsStatus.FileType = 0x2;
- afsStatus.LinkCount = scp->linkCount;
- afsStatus.Length = cm_fakeDirSize;
- afsStatus.DataVersion = cm_fakeDirVersion;
- afsStatus.Author = 0x1;
- afsStatus.Owner = 0x0;
- afsStatus.CallerAccess = 0x9;
- afsStatus.AnonymousAccess = 0x9;
- afsStatus.UnixModeBits = 0x1ff;
- afsStatus.ParentVnode = 0x1;
- afsStatus.ParentUnique = 0x1;
- afsStatus.ResidencyMask = 0;
- afsStatus.ClientModTime = FakeFreelanceModTime;
- afsStatus.ServerModTime = FakeFreelanceModTime;
- afsStatus.Group = 0;
- afsStatus.SyncCounter = 0;
- afsStatus.dataVersionHigh = 0;
+ if (cm_freelanceEnabled && getroot) {
+ // setup the fake status
+ afsStatus.InterfaceVersion = 0x1;
+ afsStatus.FileType = 0x2;
+ afsStatus.LinkCount = scp->linkCount;
+ afsStatus.Length = cm_fakeDirSize;
+ afsStatus.DataVersion = cm_fakeDirVersion;
+ afsStatus.Author = 0x1;
+ afsStatus.Owner = 0x0;
+ afsStatus.CallerAccess = 0x9;
+ afsStatus.AnonymousAccess = 0x9;
+ afsStatus.UnixModeBits = 0x1ff;
+ afsStatus.ParentVnode = 0x1;
+ afsStatus.ParentUnique = 0x1;
+ afsStatus.ResidencyMask = 0;
+ afsStatus.ClientModTime = FakeFreelanceModTime;
+ afsStatus.ServerModTime = FakeFreelanceModTime;
+ afsStatus.Group = 0;
+ afsStatus.SyncCounter = 0;
+ afsStatus.dataVersionHigh = 0;
- // once we're done setting up the status info,
- // we just fill the buffer pages with fakedata
- // from cm_FakeRootDir. Extra pages are set to
- // 0.
+ // once we're done setting up the status info,
+ // we just fill the buffer pages with fakedata
+ // from cm_FakeRootDir. Extra pages are set to
+ // 0.
- lock_ObtainMutex(&cm_Freelance_Lock);
- t1 = bufp->offset.LowPart;
- qdp = biod.bufListEndp;
- while (qdp) {
- tbufp = osi_GetQData(qdp);
- bufferp=tbufp->datap;
- memset(bufferp, 0, buf_bufferSize);
- t2 = cm_fakeDirSize - t1;
- if (t2>buf_bufferSize) t2=buf_bufferSize;
- if (t2 > 0) {
- memcpy(bufferp, cm_FakeRootDir+t1, t2);
- } else {
- t2 = 0;
- }
- t1+=t2;
- qdp = (osi_queueData_t *) osi_QPrev(&qdp->q);
-
- }
- lock_ReleaseMutex(&cm_Freelance_Lock);
+ lock_ObtainMutex(&cm_Freelance_Lock);
+ t1 = bufp->offset.LowPart;
+ qdp = biod.bufListEndp;
+ while (qdp) {
+ tbufp = osi_GetQData(qdp);
+ bufferp=tbufp->datap;
+ memset(bufferp, 0, buf_bufferSize);
+ t2 = cm_fakeDirSize - t1;
+ if (t2>buf_bufferSize) t2=buf_bufferSize;
+ if (t2 > 0) {
+ memcpy(bufferp, cm_FakeRootDir+t1, t2);
+ } else {
+ t2 = 0;
+ }
+ t1+=t2;
+ qdp = (osi_queueData_t *) osi_QPrev(&qdp->q);
+
+ }
+ lock_ReleaseMutex(&cm_Freelance_Lock);
- // once we're done, we skip over the part of the
- // code that does the ACTUAL fetching of data for
- // real files
+ // once we're done, we skip over the part of the
+ // code that does the ACTUAL fetching of data for
+ // real files
- goto fetchingcompleted;
- }
+ goto fetchingcompleted;
+ }
#endif /* AFS_FREELANCE_CLIENT */
/* now make the call */
do {
- code = cm_Conn(&scp->fid, up, reqp, &connp);
+ code = cm_Conn(&scp->fid, up, reqp, &connp);
if (code)
continue;
- callp = rx_NewCall(connp->callp);
+ lock_ObtainMutex(&connp->mx);
+ callp = rx_NewCall(connp->callp);
- osi_Log3(afsd_logp, "CALL FetchData vp %x, off 0x%x, size 0x%x",
- (long) scp, biod.offset.LowPart, biod.length);
+ osi_Log3(afsd_logp, "CALL FetchData vp %x, off 0x%x, size 0x%x",
+ (long) scp, biod.offset.LowPart, biod.length);
code = StartRXAFS_FetchData(callp, &tfid, biod.offset.LowPart,
biod.length);
- /* now copy the data out of the pipe and put it in the buffer */
- temp = rx_Read(callp, (char *)&nbytes, 4);
- if (temp == 4) {
- nbytes = ntohl(nbytes);
+ /* now copy the data out of the pipe and put it in the buffer */
+ temp = rx_Read(callp, (char *)&nbytes, 4);
+ if (temp == 4) {
+ nbytes = ntohl(nbytes);
if (nbytes > biod.length)
code = (callp->error < 0) ? callp->error : -1;
}
else
code = (callp->error < 0) ? callp->error : -1;
- if (code == 0) {
+ if (code == 0) {
qdp = biod.bufListEndp;
if (qdp) {
- tbufp = osi_GetQData(qdp);
+ tbufp = osi_GetQData(qdp);
bufferp = tbufp->datap;
}
else
bufferp = NULL;
- /* fill nbytes of data from the pipe into the pages.
- * When we stop, qdp will point at the last page we're
- * dealing with, and bufferp will tell us where we
- * stopped. We'll need this info below when we clear
- * the remainder of the last page out (and potentially
+ /* fill nbytes of data from the pipe into the pages.
+ * When we stop, qdp will point at the last page we're
+ * dealing with, and bufferp will tell us where we
+ * stopped. We'll need this info below when we clear
+ * the remainder of the last page out (and potentially
* clear later pages out, if we fetch past EOF).
*/
- while(nbytes > 0) {
- /* assert that there are still more buffers;
- * our check above for nbytes being less than
- * biod.length should ensure this.
+ while (nbytes > 0) {
+ /* assert that there are still more buffers;
+ * our check above for nbytes being less than
+ * biod.length should ensure this.
*/
- osi_assert(bufferp != NULL);
+ osi_assert(bufferp != NULL);
- /* read rbytes of data */
+ /* read rbytes of data */
rbytes = (nbytes > buf_bufferSize? buf_bufferSize : nbytes);
temp = rx_Read(callp, bufferp, rbytes);
if (temp < rbytes) {
code = (callp->error < 0) ? callp->error : -1;
break;
- }
-
- /* allow read-while-fetching.
- * if this is the last buffer, clear the
- * PREFETCHING flag, so the reader waiting for
- * this buffer will start a prefetch.
- */
- tbufp->cmFlags |= CM_BUF_CMFULLYFETCHED;
- lock_ObtainMutex(&scp->mx);
- if (scp->flags & CM_SCACHEFLAG_WAITING) {
- scp->flags &= ~CM_SCACHEFLAG_WAITING;
- osi_Wakeup((long) &scp->flags);
- }
- if (cpffp && !*cpffp && !osi_QPrev(&qdp->q)) {
- *cpffp = 1;
- cm_ClearPrefetchFlag(0, scp, &biod.offset);
- }
- lock_ReleaseMutex(&scp->mx);
-
- /* and adjust counters */
+ }
+
+ /* allow read-while-fetching.
+ * if this is the last buffer, clear the
+ * PREFETCHING flag, so the reader waiting for
+ * this buffer will start a prefetch.
+ */
+ tbufp->cmFlags |= CM_BUF_CMFULLYFETCHED;
+ lock_ObtainMutex(&scp->mx);
+ if (scp->flags & CM_SCACHEFLAG_WAITING) {
+ scp->flags &= ~CM_SCACHEFLAG_WAITING;
+ osi_Wakeup((long) &scp->flags);
+ }
+ if (cpffp && !*cpffp && !osi_QPrev(&qdp->q)) {
+ *cpffp = 1;
+ cm_ClearPrefetchFlag(0, scp, &biod.offset);
+ }
+ lock_ReleaseMutex(&scp->mx);
+
+ /* and adjust counters */
nbytes -= temp;
-
+
/* and move to the next buffer */
- if (nbytes != 0) {
+ if (nbytes != 0) {
qdp = (osi_queueData_t *) osi_QPrev(&qdp->q);
if (qdp) {
- tbufp = osi_GetQData(qdp);
+ tbufp = osi_GetQData(qdp);
bufferp = tbufp->datap;
}
else
bufferp = NULL;
- } else
+ } else
bufferp += temp;
}
/* zero out remainder of last pages, in case we are
- * fetching past EOF. We were fetching an integral #
- * of pages, but stopped, potentially in the middle of
- * a page. Zero the remainder of that page, and then
- * all of the rest of the pages.
+ * fetching past EOF. We were fetching an integral #
+ * of pages, but stopped, potentially in the middle of
+ * a page. Zero the remainder of that page, and then
+ * all of the rest of the pages.
*/
- /* bytes fetched */
+ /* bytes fetched */
rbytes = bufferp - tbufp->datap;
- /* bytes left to zero */
+ /* bytes left to zero */
rbytes = buf_bufferSize - rbytes;
while(qdp) {
if (rbytes != 0)
- memset(bufferp, 0, rbytes);
+ memset(bufferp, 0, rbytes);
qdp = (osi_queueData_t *) osi_QPrev(&qdp->q);
- if (qdp == NULL)
+ if (qdp == NULL)
break;
- tbufp = osi_GetQData(qdp);
+ tbufp = osi_GetQData(qdp);
bufferp = tbufp->datap;
- /* bytes to clear in this page */
- rbytes = buf_bufferSize;
- }
- }
+ /* bytes to clear in this page */
+ rbytes = buf_bufferSize;
+ }
+ }
- if (code == 0)
- code = EndRXAFS_FetchData(callp, &afsStatus, &callback, &volSync);
- else
- osi_Log0(afsd_logp, "CALL EndRXAFS_FetchData skipped due to error");
+ if (code == 0)
+ code = EndRXAFS_FetchData(callp, &afsStatus, &callback, &volSync);
+ else
+ osi_Log0(afsd_logp, "CALL EndRXAFS_FetchData skipped due to error");
code = rx_EndCall(callp, code);
if (code == RXKADUNKNOWNKEY)
osi_Log0(afsd_logp, "CALL EndCall returns RXKADUNKNOWNKEY");
osi_Log0(afsd_logp, "CALL FetchData DONE");
- } while (cm_Analyze(connp, up, reqp, &scp->fid, &volSync, NULL, NULL, code));
+ lock_ReleaseMutex(&connp->mx);
+
+ } while (cm_Analyze(connp, up, reqp, &scp->fid, &volSync, NULL, NULL, code));
fetchingcompleted:
code = cm_MapRPCError(code, reqp);
lock_ObtainMutex(&scp->mx);
- /* we know that no one else has changed the buffer, since we still have
- * the fetching flag on the buffers, and we have the scp locked again.
- * Copy in the version # into the buffer if we got code 0 back from the
- * read.
+ /* we know that no one else has changed the buffer, since we still have
+ * the fetching flag on the buffers, and we have the scp locked again.
+ * Copy in the version # into the buffer if we got code 0 back from the
+ * read.
*/
- if (code == 0) {
- for(qdp = biod.bufListp;
- qdp;
- qdp = (osi_queueData_t *) osi_QNext(&qdp->q)) {
- tbufp = osi_GetQData(qdp);
+ if (code == 0) {
+ for(qdp = biod.bufListp;
+ qdp;
+ qdp = (osi_queueData_t *) osi_QNext(&qdp->q)) {
+ tbufp = osi_GetQData(qdp);
tbufp->dataVersion = afsStatus.DataVersion;
#ifdef DISKCACHE95
}
}
- /* release scatter/gather I/O structure (buffers, locks) */
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseBIOD(&biod, 0);
- lock_ObtainMutex(&scp->mx);
+ /* release scatter/gather I/O structure (buffers, locks) */
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseBIOD(&biod, 0);
+ lock_ObtainMutex(&scp->mx);
if (code == 0)
cm_MergeStatus(scp, &afsStatus, &volSync, up, 0);
- return code;
+ return code;
}
extern afs_int32 cryptall;
extern char cm_NetbiosName[];
+extern void afsi_log(char *pattern, ...);
+
void cm_InitIoctl(void)
{
- lock_InitializeMutex(&cm_Afsdsbmt_Lock, "AFSDSBMT.INI Access Lock");
+ lock_InitializeMutex(&cm_Afsdsbmt_Lock, "AFSDSBMT.INI Access Lock");
}
long cm_FlushFile(cm_scache_t *scp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
+ long code;
- lock_ObtainWrite(&scp->bufCreateLock);
- code = buf_FlushCleanPages(scp, userp, reqp);
+ lock_ObtainWrite(&scp->bufCreateLock);
+ code = buf_FlushCleanPages(scp, userp, reqp);
- lock_ObtainMutex(&scp->mx);
- scp->cbServerp = NULL;
- scp->cbExpires = 0;
- lock_ReleaseMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
+ scp->cbServerp = NULL;
+ scp->cbExpires = 0;
+ lock_ReleaseMutex(&scp->mx);
- lock_ReleaseWrite(&scp->bufCreateLock);
- cm_dnlcPurgedp(scp);
+ lock_ReleaseWrite(&scp->bufCreateLock);
+ cm_dnlcPurgedp(scp);
- return code;
+ return code;
}
/*
*/
void cm_ResetACLCache(cm_user_t *userp)
{
- cm_scache_t *scp;
- int hash;
-
- lock_ObtainWrite(&cm_scacheLock);
- for (hash=0; hash < cm_hashTableSize; hash++) {
- for (scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
- scp->refCount++;
- lock_ReleaseWrite(&cm_scacheLock);
- lock_ObtainMutex(&scp->mx);
- cm_InvalidateACLUser(scp, userp);
- lock_ReleaseMutex(&scp->mx);
- lock_ObtainWrite(&cm_scacheLock);
- scp->refCount--;
- }
- }
- lock_ReleaseWrite(&cm_scacheLock);
-}
+ cm_scache_t *scp;
+ int hash;
+
+ lock_ObtainWrite(&cm_scacheLock);
+ for (hash=0; hash < cm_hashTableSize; hash++) {
+ for (scp=cm_hashTablep[hash]; scp; scp=scp->nextp) {
+ scp->refCount++;
+ lock_ReleaseWrite(&cm_scacheLock);
+ lock_ObtainMutex(&scp->mx);
+ cm_InvalidateACLUser(scp, userp);
+ lock_ReleaseMutex(&scp->mx);
+ lock_ObtainWrite(&cm_scacheLock);
+ scp->refCount--;
+ }
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
+}
/*
* TranslateExtendedChars - This is a fix for TR 54482.
long cm_ParseIoctlPath(smb_ioctl_t *ioctlp, cm_user_t *userp, cm_req_t *reqp,
cm_scache_t **scpp)
{
- long code;
- cm_scache_t *substRootp;
+ long code;
+ cm_scache_t *substRootp;
char * relativePath = ioctlp->inDatap;
/* This is usually the file name, but for StatMountPoint it is the path. */
* \\netbios-name\submount\path\.
* \\netbios-name\submount\path\file
*/
- TranslateExtendedChars(relativePath);
+ TranslateExtendedChars(relativePath);
if (relativePath[0] == relativePath[1] &&
relativePath[1] == '\\' &&
CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
userp, sharePath, reqp, &substRootp);
free(sharePath);
- if (code) return code;
+ if (code)
+ return code;
- code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
- userp, NULL, reqp, scpp);
- if (code) return code;
+ code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
+ userp, NULL, reqp, scpp);
+ if (code)
+ return code;
} else {
/* otherwise, treat the name as a cellname mounted off the afs root.
- * This requires that we reconstruct the shareName string with
- * leading and trailing slashes.
- */
+ * This requires that we reconstruct the shareName string with
+ * leading and trailing slashes.
+ */
p = relativePath + 2 + strlen(cm_NetbiosName) + 1;
- if ( !_strnicmp("all", p, 3) )
- p += 4;
-
- shareName[0] = '/';
- for (i = 1; *p && *p != '\\'; i++,p++ ) {
- shareName[i] = *p;
- }
- p++; /* skip past trailing slash */
- shareName[i++] = '/'; /* add trailing slash */
- shareName[i] = 0; /* terminate string */
-
-
- code = cm_NameI(cm_rootSCachep, ioctlp->prefix->data,
+ if ( !_strnicmp("all", p, 3) )
+ p += 4;
+
+ shareName[0] = '/';
+ for (i = 1; *p && *p != '\\'; i++,p++ ) {
+ shareName[i] = *p;
+ }
+ p++; /* skip past trailing slash */
+ shareName[i++] = '/'; /* add trailing slash */
+ shareName[i] = 0; /* terminate string */
+
+
+ code = cm_NameI(cm_rootSCachep, ioctlp->prefix->data,
CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
userp, shareName, reqp, &substRootp);
- if (code) return code;
+ if (code)
+ return code;
- code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
- userp, NULL, reqp, scpp);
- if (code) return code;
+ code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
+ userp, NULL, reqp, scpp);
+ if (code)
+ return code;
}
} else {
code = cm_NameI(cm_rootSCachep, ioctlp->prefix->data,
CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
userp, ioctlp->tidPathp, reqp, &substRootp);
- if (code) return code;
+ if (code)
+ return code;
code = cm_NameI(substRootp, relativePath, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
userp, NULL, reqp, scpp);
- if (code) return code;
+ if (code)
+ return code;
}
- /* # of bytes of path */
+ /* # of bytes of path */
code = strlen(ioctlp->inDatap) + 1;
ioctlp->inDatap += code;
/* This is usually nothing, but for StatMountPoint it is the file name. */
TranslateExtendedChars(ioctlp->inDatap);
- /* and return success */
+ /* and return success */
return 0;
}
void cm_SkipIoctlPath(smb_ioctl_t *ioctlp)
{
- long temp;
+ long temp;
- temp = strlen(ioctlp->inDatap) + 1;
- ioctlp->inDatap += temp;
-}
+ temp = strlen(ioctlp->inDatap) + 1;
+ ioctlp->inDatap += temp;
+}
/* format the specified path to look like "/afs/<cellname>/usr", by
*/
void cm_NormalizeAfsPath (char *outpathp, char *inpathp)
{
- char *cp;
+ char *cp;
char bslash_mountRoot[256];
strncpy(bslash_mountRoot, cm_mountRoot, sizeof(bslash_mountRoot) - 1);
bslash_mountRoot[0] = '\\';
if (!strnicmp (inpathp, cm_mountRoot, strlen(cm_mountRoot)))
- lstrcpy (outpathp, inpathp);
- else if (!strnicmp (inpathp, bslash_mountRoot, strlen(bslash_mountRoot)))
- lstrcpy (outpathp, inpathp);
- else if ((inpathp[0] == '/') || (inpathp[0] == '\\'))
- sprintf (outpathp, "%s%s", cm_mountRoot, inpathp);
- else // inpathp looks like "<cell>/usr"
- sprintf (outpathp, "%s/%s", cm_mountRoot, inpathp);
-
- for (cp = outpathp; *cp != 0; ++cp) {
- if (*cp == '\\')
- *cp = '/';
- }
-
- if (strlen(outpathp) && (outpathp[strlen(outpathp)-1] == '/')) {
- outpathp[strlen(outpathp)-1] = 0;
- }
-
- if (!strcmpi (outpathp, cm_mountRoot)) {
+ lstrcpy (outpathp, inpathp);
+ else if (!strnicmp (inpathp, bslash_mountRoot, strlen(bslash_mountRoot)))
+ lstrcpy (outpathp, inpathp);
+ else if ((inpathp[0] == '/') || (inpathp[0] == '\\'))
+ sprintf (outpathp, "%s%s", cm_mountRoot, inpathp);
+ else // inpathp looks like "<cell>/usr"
+ sprintf (outpathp, "%s/%s", cm_mountRoot, inpathp);
+
+ for (cp = outpathp; *cp != 0; ++cp) {
+ if (*cp == '\\')
+ *cp = '/';
+ }
+
+ if (strlen(outpathp) && (outpathp[strlen(outpathp)-1] == '/')) {
+ outpathp[strlen(outpathp)-1] = 0;
+ }
+
+ if (!strcmpi (outpathp, cm_mountRoot)) {
strcpy (outpathp, cm_mountRoot);
- }
+ }
}
/* parse the passed-in file name and do a namei on its parent. If we fail,
long cm_ParseIoctlParent(smb_ioctl_t *ioctlp, cm_user_t *userp, cm_req_t *reqp,
cm_scache_t **scpp, char *leafp)
{
- long code;
+ long code;
char tbuffer[1024];
char *tp, *jp;
- cm_scache_t *substRootp;
+ cm_scache_t *substRootp;
- strcpy(tbuffer, ioctlp->inDatap);
+ strcpy(tbuffer, ioctlp->inDatap);
tp = strrchr(tbuffer, '\\');
- jp = strrchr(tbuffer, '/');
- if (!tp)
- tp = jp;
- else if (jp && (tp - tbuffer) < (jp - tbuffer))
- tp = jp;
+ jp = strrchr(tbuffer, '/');
+ if (!tp)
+ tp = jp;
+ else if (jp && (tp - tbuffer) < (jp - tbuffer))
+ tp = jp;
if (!tp) {
strcpy(tbuffer, "\\");
if (leafp)
strcpy(leafp, ioctlp->inDatap);
- }
+ }
else {
*tp = 0;
if (leafp)
strcpy(leafp, tp+1);
- }
+ }
if (tbuffer[0] == tbuffer[1] &&
tbuffer[1] == '\\' &&
free(sharePath);
if (code) return code;
- code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
- userp, NULL, reqp, scpp);
- if (code) return code;
+ code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
+ userp, NULL, reqp, scpp);
+ if (code) return code;
} else {
/* otherwise, treat the name as a cellname mounted off the afs root.
- * This requires that we reconstruct the shareName string with
- * leading and trailing slashes.
- */
+ * This requires that we reconstruct the shareName string with
+ * leading and trailing slashes.
+ */
p = tbuffer + 2 + strlen(cm_NetbiosName) + 1;
- if ( !_strnicmp("all", p, 3) )
- p += 4;
-
- shareName[0] = '/';
- for (i = 1; *p && *p != '\\'; i++,p++ ) {
- shareName[i] = *p;
- }
- p++; /* skip past trailing slash */
- shareName[i++] = '/'; /* add trailing slash */
- shareName[i] = 0; /* terminate string */
-
- code = cm_NameI(cm_rootSCachep, ioctlp->prefix->data,
+ if ( !_strnicmp("all", p, 3) )
+ p += 4;
+
+ shareName[0] = '/';
+ for (i = 1; *p && *p != '\\'; i++,p++ ) {
+ shareName[i] = *p;
+ }
+ p++; /* skip past trailing slash */
+ shareName[i++] = '/'; /* add trailing slash */
+ shareName[i] = 0; /* terminate string */
+
+ code = cm_NameI(cm_rootSCachep, ioctlp->prefix->data,
CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
userp, shareName, reqp, &substRootp);
if (code) return code;
- code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
- userp, NULL, reqp, scpp);
- if (code) return code;
+ code = cm_NameI(substRootp, p, CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
+ userp, NULL, reqp, scpp);
+ if (code) return code;
}
} else {
code = cm_NameI(cm_rootSCachep, ioctlp->prefix->data,
- CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
- userp, ioctlp->tidPathp, reqp, &substRootp);
+ CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW,
+ userp, ioctlp->tidPathp, reqp, &substRootp);
if (code) return code;
code = cm_NameI(substRootp, tbuffer, CM_FLAG_FOLLOW,
- userp, NULL, reqp, scpp);
+ userp, NULL, reqp, scpp);
if (code) return code;
}
- /* # of bytes of path */
- code = strlen(ioctlp->inDatap) + 1;
- ioctlp->inDatap += code;
+ /* # of bytes of path */
+ code = strlen(ioctlp->inDatap) + 1;
+ ioctlp->inDatap += code;
- /* and return success */
- return 0;
+ /* and return success */
+ return 0;
}
long cm_IoctlGetACL(smb_ioctl_t *ioctlp, cm_user_t *userp)
{
- cm_conn_t *connp;
- cm_scache_t *scp;
- AFSOpaque acl;
- AFSFetchStatus fileStatus;
- AFSVolSync volSync;
- long code;
- AFSFid fid;
- int tlen;
- cm_req_t req;
+ cm_conn_t *connp;
+ cm_scache_t *scp;
+ AFSOpaque acl;
+ AFSFetchStatus fileStatus;
+ AFSVolSync volSync;
+ long code;
+ AFSFid fid;
+ int tlen;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
-
- /* now make the get acl call */
- fid.Volume = scp->fid.volume;
- fid.Vnode = scp->fid.vnode;
- fid.Unique = scp->fid.unique;
- do {
- acl.AFSOpaque_val = ioctlp->outDatap;
- acl.AFSOpaque_len = 0;
- code = cm_Conn(&scp->fid, userp, &req, &connp);
- if (code) continue;
-
- code = RXAFS_FetchACL(connp->callp, &fid, &acl, &fileStatus, &volSync);
- } while (cm_Analyze(connp, userp, &req, &scp->fid, &volSync, NULL, NULL, code));
- code = cm_MapRPCError(code, &req);
- cm_ReleaseSCache(scp);
-
- if (code) return code;
-
- /* skip over return data */
- tlen = strlen(ioctlp->outDatap) + 1;
- ioctlp->outDatap += tlen;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
- /* and return success */
- return 0;
+ /* now make the get acl call */
+ fid.Volume = scp->fid.volume;
+ fid.Vnode = scp->fid.vnode;
+ fid.Unique = scp->fid.unique;
+ do {
+ acl.AFSOpaque_val = ioctlp->outDatap;
+ acl.AFSOpaque_len = 0;
+ code = cm_Conn(&scp->fid, userp, &req, &connp);
+ if (code) continue;
+
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_FetchACL(connp->callp, &fid, &acl, &fileStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, &req, &scp->fid, &volSync, NULL, NULL, code));
+ code = cm_MapRPCError(code, &req);
+ cm_ReleaseSCache(scp);
+
+ if (code) return code;
+
+ /* skip over return data */
+ tlen = strlen(ioctlp->outDatap) + 1;
+ ioctlp->outDatap += tlen;
+
+ /* and return success */
+ return 0;
}
long cm_IoctlGetFileCellName(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *scp;
- cm_cell_t *cellp;
- cm_req_t req;
+ long code;
+ cm_scache_t *scp;
+ cm_cell_t *cellp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
-
- cellp = cm_FindCellByID(scp->fid.cell);
- if (cellp) {
- strcpy(ioctlp->outDatap, cellp->namep);
- ioctlp->outDatap += strlen(ioctlp->outDatap) + 1;
- code = 0;
- }
- else code = CM_ERROR_NOSUCHCELL;
-
- cm_ReleaseSCache(scp);
- return code;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
+
+ cellp = cm_FindCellByID(scp->fid.cell);
+ if (cellp) {
+ strcpy(ioctlp->outDatap, cellp->namep);
+ ioctlp->outDatap += strlen(ioctlp->outDatap) + 1;
+ code = 0;
+ }
+ else code = CM_ERROR_NOSUCHCELL;
+
+ cm_ReleaseSCache(scp);
+ return code;
}
long cm_IoctlSetACL(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_conn_t *connp;
- cm_scache_t *scp;
- AFSOpaque acl;
- AFSFetchStatus fileStatus;
- AFSVolSync volSync;
- long code;
- AFSFid fid;
- cm_req_t req;
+ cm_conn_t *connp;
+ cm_scache_t *scp;
+ AFSOpaque acl;
+ AFSFetchStatus fileStatus;
+ AFSVolSync volSync;
+ long code;
+ AFSFid fid;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
- /* now make the get acl call */
- fid.Volume = scp->fid.volume;
- fid.Vnode = scp->fid.vnode;
- fid.Unique = scp->fid.unique;
- do {
- acl.AFSOpaque_val = ioctlp->inDatap;
- acl.AFSOpaque_len = strlen(ioctlp->inDatap)+1;
- code = cm_Conn(&scp->fid, userp, &req, &connp);
- if (code) continue;
-
- code = RXAFS_StoreACL(connp->callp, &fid, &acl, &fileStatus, &volSync);
- } while (cm_Analyze(connp, userp, &req, &scp->fid, &volSync, NULL, NULL, code));
- code = cm_MapRPCError(code, &req);
-
- /* invalidate cache info, since we just trashed the ACL cache */
- lock_ObtainMutex(&scp->mx);
- cm_DiscardSCache(scp);
- lock_ReleaseMutex(&scp->mx);
-
- cm_ReleaseSCache(scp);
-
- return code;
+ /* now make the get acl call */
+ fid.Volume = scp->fid.volume;
+ fid.Vnode = scp->fid.vnode;
+ fid.Unique = scp->fid.unique;
+ do {
+ acl.AFSOpaque_val = ioctlp->inDatap;
+ acl.AFSOpaque_len = strlen(ioctlp->inDatap)+1;
+ code = cm_Conn(&scp->fid, userp, &req, &connp);
+ if (code) continue;
+
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_StoreACL(connp->callp, &fid, &acl, &fileStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, &req, &scp->fid, &volSync, NULL, NULL, code));
+ code = cm_MapRPCError(code, &req);
+
+ /* invalidate cache info, since we just trashed the ACL cache */
+ lock_ObtainMutex(&scp->mx);
+ cm_DiscardSCache(scp);
+ lock_ReleaseMutex(&scp->mx);
+
+ cm_ReleaseSCache(scp);
+
+ return code;
}
long cm_IoctlFlushVolume(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *scp;
- unsigned long volume;
- int i;
- cm_req_t req;
+ long code;
+ cm_scache_t *scp;
+ unsigned long volume;
+ int i;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
- volume = scp->fid.volume;
- cm_ReleaseSCache(scp);
-
- lock_ObtainWrite(&cm_scacheLock);
- for(i=0; i<cm_hashTableSize; i++) {
- for(scp = cm_hashTablep[i]; scp; scp = scp->nextp) {
- if (scp->fid.volume == volume) {
- scp->refCount++;
- lock_ReleaseWrite(&cm_scacheLock);
-
- /* now flush the file */
- cm_FlushFile(scp, userp, &req);
+ volume = scp->fid.volume;
+ cm_ReleaseSCache(scp);
- lock_ObtainWrite(&cm_scacheLock);
- scp->refCount--;
- }
- }
+ lock_ObtainWrite(&cm_scacheLock);
+ for (i=0; i<cm_hashTableSize; i++) {
+ for (scp = cm_hashTablep[i]; scp; scp = scp->nextp) {
+ if (scp->fid.volume == volume) {
+ scp->refCount++;
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ /* now flush the file */
+ code = cm_FlushFile(scp, userp, &req);
+ if ( code )
+ afsi_log("cm_FlushFile returns error: [%x]",code);
+ lock_ObtainWrite(&cm_scacheLock);
+ scp->refCount--;
+ }
}
- lock_ReleaseWrite(&cm_scacheLock);
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
- return code;
+ return code;
}
long cm_IoctlFlushFile(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *scp;
- cm_req_t req;
+ long code;
+ cm_scache_t *scp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
- cm_FlushFile(scp, userp, &req);
- cm_ReleaseSCache(scp);
+ cm_FlushFile(scp, userp, &req);
+ cm_ReleaseSCache(scp);
- return 0;
+ return 0;
}
long cm_IoctlSetVolumeStatus(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_scache_t *scp;
- char volName[32];
- char offLineMsg[256];
- char motd[256];
- cm_conn_t *tcp;
- long code;
- AFSFetchVolumeStatus volStat;
- AFSStoreVolumeStatus storeStat;
- cm_volume_t *tvp;
- char *cp;
- cm_cell_t *cellp;
- cm_req_t req;
-
- cm_InitReq(&req);
-
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
+ cm_scache_t *scp;
+ char volName[32];
+ char offLineMsg[256];
+ char motd[256];
+ cm_conn_t *tcp;
+ long code;
+ AFSFetchVolumeStatus volStat;
+ AFSStoreVolumeStatus storeStat;
+ cm_volume_t *tvp;
+ char *cp;
+ cm_cell_t *cellp;
+ cm_req_t req;
- cellp = cm_FindCellByID(scp->fid.cell);
- osi_assert(cellp);
+ cm_InitReq(&req);
- if (scp->flags & CM_SCACHEFLAG_RO) {
- cm_ReleaseSCache(scp);
- return CM_ERROR_READONLY;
- }
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
- code = cm_GetVolumeByID(cellp, scp->fid.volume, userp, &req, &tvp);
- if (code) {
- cm_ReleaseSCache(scp);
- return code;
- }
-
- /* Copy the junk out, using cp as a roving pointer. */
- cp = ioctlp->inDatap;
- memcpy((char *)&volStat, cp, sizeof(AFSFetchVolumeStatus));
- cp += sizeof(AFSFetchVolumeStatus);
- strcpy(volName, cp);
- cp += strlen(volName)+1;
- strcpy(offLineMsg, cp);
- cp += strlen(offLineMsg)+1;
- strcpy(motd, cp);
- storeStat.Mask = 0;
- if (volStat.MinQuota != -1) {
- storeStat.MinQuota = volStat.MinQuota;
- storeStat.Mask |= AFS_SETMINQUOTA;
- }
- if (volStat.MaxQuota != -1) {
- storeStat.MaxQuota = volStat.MaxQuota;
- storeStat.Mask |= AFS_SETMAXQUOTA;
- }
-
- do {
- code = cm_Conn(&scp->fid, userp, &req, &tcp);
- if (code) continue;
-
- code = RXAFS_SetVolumeStatus(tcp->callp, scp->fid.volume,
- &storeStat, volName, offLineMsg, motd);
- } while (cm_Analyze(tcp, userp, &req, &scp->fid, NULL, NULL, NULL, code));
- code = cm_MapRPCError(code, &req);
-
- /* return on failure */
- cm_ReleaseSCache(scp);
- if (code) {
- return code;
- }
-
- /* we are sending parms back to make compat. with prev system. should
- * change interface later to not ask for current status, just set
- * new status
- */
- cp = ioctlp->outDatap;
- memcpy(cp, (char *)&volStat, sizeof(VolumeStatus));
- cp += sizeof(VolumeStatus);
- strcpy(cp, volName);
- cp += strlen(volName)+1;
- strcpy(cp, offLineMsg);
- cp += strlen(offLineMsg)+1;
- strcpy(cp, motd);
- cp += strlen(motd)+1;
-
- /* now return updated return data pointer */
- ioctlp->outDatap = cp;
-
- return 0;
-}
+ cellp = cm_FindCellByID(scp->fid.cell);
+ osi_assert(cellp);
+
+ if (scp->flags & CM_SCACHEFLAG_RO) {
+ cm_ReleaseSCache(scp);
+ return CM_ERROR_READONLY;
+ }
+
+ code = cm_GetVolumeByID(cellp, scp->fid.volume, userp, &req, &tvp);
+ if (code) {
+ cm_ReleaseSCache(scp);
+ return code;
+ }
+
+ /* Copy the junk out, using cp as a roving pointer. */
+ cp = ioctlp->inDatap;
+ memcpy((char *)&volStat, cp, sizeof(AFSFetchVolumeStatus));
+ cp += sizeof(AFSFetchVolumeStatus);
+ strcpy(volName, cp);
+ cp += strlen(volName)+1;
+ strcpy(offLineMsg, cp);
+ cp += strlen(offLineMsg)+1;
+ strcpy(motd, cp);
+ storeStat.Mask = 0;
+ if (volStat.MinQuota != -1) {
+ storeStat.MinQuota = volStat.MinQuota;
+ storeStat.Mask |= AFS_SETMINQUOTA;
+ }
+ if (volStat.MaxQuota != -1) {
+ storeStat.MaxQuota = volStat.MaxQuota;
+ storeStat.Mask |= AFS_SETMAXQUOTA;
+ }
+
+ do {
+ code = cm_Conn(&scp->fid, userp, &req, &tcp);
+ if (code) continue;
+
+ lock_ObtainMutex(&tcp->mx);
+ code = RXAFS_SetVolumeStatus(tcp->callp, scp->fid.volume,
+ &storeStat, volName, offLineMsg, motd);
+ lock_ReleaseMutex(&tcp->mx);
+ } while (cm_Analyze(tcp, userp, &req, &scp->fid, NULL, NULL, NULL, code));
+ code = cm_MapRPCError(code, &req);
+
+ /* return on failure */
+ cm_ReleaseSCache(scp);
+ if (code) {
+ return code;
+ }
+
+ /* we are sending parms back to make compat. with prev system. should
+ * change interface later to not ask for current status, just set
+ * new status
+ */
+ cp = ioctlp->outDatap;
+ memcpy(cp, (char *)&volStat, sizeof(VolumeStatus));
+ cp += sizeof(VolumeStatus);
+ strcpy(cp, volName);
+ cp += strlen(volName)+1;
+ strcpy(cp, offLineMsg);
+ cp += strlen(offLineMsg)+1;
+ strcpy(cp, motd);
+ cp += strlen(motd)+1;
+
+ /* now return updated return data pointer */
+ ioctlp->outDatap = cp;
+
+ return 0;
+}
long cm_IoctlGetVolumeStatus(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char volName[32];
- cm_scache_t *scp;
- char offLineMsg[256];
- char motd[256];
- cm_conn_t *tcp;
- register long code;
- AFSFetchVolumeStatus volStat;
- register char *cp;
- char *Name;
- char *OfflineMsg;
- char *MOTD;
- cm_req_t req;
-
- cm_InitReq(&req);
-
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
- if (code) return code;
+ char volName[32];
+ cm_scache_t *scp;
+ char offLineMsg[256];
+ char motd[256];
+ cm_conn_t *tcp;
+ register long code;
+ AFSFetchVolumeStatus volStat;
+ register char *cp;
+ char *Name;
+ char *OfflineMsg;
+ char *MOTD;
+ cm_req_t req;
+
+ cm_InitReq(&req);
- Name = volName;
- OfflineMsg = offLineMsg;
- MOTD = motd;
- do {
- code = cm_Conn(&scp->fid, userp, &req, &tcp);
- if (code) continue;
-
- code = RXAFS_GetVolumeStatus(tcp->callp, scp->fid.volume,
- &volStat, &Name, &OfflineMsg, &MOTD);
- } while (cm_Analyze(tcp, userp, &req, &scp->fid, NULL, NULL, NULL, code));
- code = cm_MapRPCError(code, &req);
-
- cm_ReleaseSCache(scp);
- if (code) return code;
-
- /* Copy all this junk into msg->im_data, keeping track of the lengths. */
- cp = ioctlp->outDatap;
- memcpy(cp, (char *)&volStat, sizeof(AFSFetchVolumeStatus));
- cp += sizeof(AFSFetchVolumeStatus);
- strcpy(cp, volName);
- cp += strlen(volName)+1;
- strcpy(cp, offLineMsg);
- cp += strlen(offLineMsg)+1;
- strcpy(cp, motd);
- cp += strlen(motd)+1;
-
- /* return new size */
- ioctlp->outDatap = cp;
-
- return 0;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
+ if (code) return code;
+
+ Name = volName;
+ OfflineMsg = offLineMsg;
+ MOTD = motd;
+ do {
+ code = cm_Conn(&scp->fid, userp, &req, &tcp);
+ if (code) continue;
+
+ lock_ObtainMutex(&tcp->mx);
+ code = RXAFS_GetVolumeStatus(tcp->callp, scp->fid.volume,
+ &volStat, &Name, &OfflineMsg, &MOTD);
+ lock_ReleaseMutex(&tcp->mx);
+ } while (cm_Analyze(tcp, userp, &req, &scp->fid, NULL, NULL, NULL, code));
+ code = cm_MapRPCError(code, &req);
+
+ cm_ReleaseSCache(scp);
+ if (code) return code;
+
+ /* Copy all this junk into msg->im_data, keeping track of the lengths. */
+ cp = ioctlp->outDatap;
+ memcpy(cp, (char *)&volStat, sizeof(AFSFetchVolumeStatus));
+ cp += sizeof(AFSFetchVolumeStatus);
+ strcpy(cp, volName);
+ cp += strlen(volName)+1;
+ strcpy(cp, offLineMsg);
+ cp += strlen(offLineMsg)+1;
+ strcpy(cp, motd);
+ cp += strlen(motd)+1;
+
+ /* return new size */
+ ioctlp->outDatap = cp;
+
+ return 0;
}
long cm_IoctlWhereIs(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
+ long code;
cm_scache_t *scp;
cm_cell_t *cellp;
cm_volume_t *tvp;
- cm_serverRef_t **tsrpp, *current;
+ cm_serverRef_t **tsrpp, *current;
cm_server_t *tsp;
unsigned long volume;
char *cp;
cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
code = cm_ParseIoctlPath(ioctlp, userp, &req, &scp);
if (code) return code;
- volume = scp->fid.volume;
+ volume = scp->fid.volume;
- cellp = cm_FindCellByID(scp->fid.cell);
+ cellp = cm_FindCellByID(scp->fid.cell);
osi_assert(cellp);
cm_ReleaseSCache(scp);
- code = cm_GetVolumeByID(cellp, volume, userp, &req, &tvp);
+ code = cm_GetVolumeByID(cellp, volume, userp, &req, &tvp);
if (code) return code;
cp = ioctlp->outDatap;
- lock_ObtainMutex(&tvp->mx);
- tsrpp = cm_GetVolServers(tvp, volume);
- lock_ObtainRead(&cm_serverLock);
- for (current = *tsrpp; current; current = current->next) {
- tsp = current->server;
- memcpy(cp, (char *)&tsp->addr.sin_addr.s_addr, sizeof(long));
- cp += sizeof(long);
- }
- lock_ReleaseRead(&cm_serverLock);
+ lock_ObtainMutex(&tvp->mx);
+ tsrpp = cm_GetVolServers(tvp, volume);
+ lock_ObtainRead(&cm_serverLock);
+ for (current = *tsrpp; current; current = current->next) {
+ tsp = current->server;
+ memcpy(cp, (char *)&tsp->addr.sin_addr.s_addr, sizeof(long));
+ cp += sizeof(long);
+ }
+ lock_ReleaseRead(&cm_serverLock);
cm_FreeServerList(tsrpp);
lock_ReleaseMutex(&tvp->mx);
- /* still room for terminating NULL, add it on */
- volume = 0; /* reuse vbl */
- memcpy(cp, (char *)&volume, sizeof(long));
- cp += sizeof(long);
+ /* still room for terminating NULL, add it on */
+ volume = 0; /* reuse vbl */
+ memcpy(cp, (char *)&volume, sizeof(long));
+ cp += sizeof(long);
- ioctlp->outDatap = cp;
- cm_PutVolume(tvp);
- return 0;
-}
+ ioctlp->outDatap = cp;
+ cm_PutVolume(tvp);
+ return 0;
+}
long cm_IoctlStatMountPoint(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *dscp;
- cm_scache_t *scp;
- char *cp;
- cm_req_t req;
+ long code;
+ cm_scache_t *dscp;
+ cm_scache_t *scp;
+ char *cp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
- if (code) return code;
-
- cp = ioctlp->inDatap;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
+ if (code) return code;
- code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
- cm_ReleaseSCache(dscp);
- if (code) return code;
+ cp = ioctlp->inDatap;
+
+ code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
+ cm_ReleaseSCache(dscp);
+ if (code) return code;
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
- /* now check that this is a real mount point */
- if (scp->fileType != CM_SCACHETYPE_MOUNTPOINT) {
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- return CM_ERROR_INVAL;
- }
-
- code = cm_ReadMountPoint(scp, userp, &req);
- if (code == 0) {
- cp = ioctlp->outDatap;
- strcpy(cp, scp->mountPointStringp);
- cp += strlen(cp) + 1;
- ioctlp->outDatap = cp;
- }
- lock_ReleaseMutex(&scp->mx);
+ /* now check that this is a real mount point */
+ if (scp->fileType != CM_SCACHETYPE_MOUNTPOINT) {
+ lock_ReleaseMutex(&scp->mx);
cm_ReleaseSCache(scp);
+ return CM_ERROR_INVAL;
+ }
- return code;
-}
+ code = cm_ReadMountPoint(scp, userp, &req);
+ if (code == 0) {
+ cp = ioctlp->outDatap;
+ strcpy(cp, scp->mountPointStringp);
+ cp += strlen(cp) + 1;
+ ioctlp->outDatap = cp;
+ }
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
+
+ return code;
+}
long cm_IoctlDeleteMountPoint(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *dscp;
- cm_scache_t *scp;
- char *cp;
- cm_req_t req;
+ long code;
+ cm_scache_t *dscp;
+ cm_scache_t *scp;
+ char *cp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
- if (code) return code;
-
- cp = ioctlp->inDatap;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
+ if (code) return code;
+
+ cp = ioctlp->inDatap;
- code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
+ code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
- /* if something went wrong, bail out now */
- if (code) {
- goto done;
- }
+ /* if something went wrong, bail out now */
+ if (code) {
+ goto done;
+ }
- lock_ObtainMutex(&scp->mx);
- code = cm_SyncOp(scp, NULL, userp, &req, 0,
- CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
- if (code) {
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- goto done;
- }
-
- /* now check that this is a real mount point */
- if (scp->fileType != CM_SCACHETYPE_MOUNTPOINT) {
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- code = CM_ERROR_INVAL;
- goto done;
- }
-
- /* time to make the RPC, so drop the lock */
- lock_ReleaseMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
+ code = cm_SyncOp(scp, NULL, userp, &req, 0,
+ CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
+ if (code) {
+ lock_ReleaseMutex(&scp->mx);
cm_ReleaseSCache(scp);
-
- /* easier to do it this way */
- code = cm_Unlink(dscp, cp, userp, &req);
- if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
- smb_NotifyChange(FILE_ACTION_REMOVED,
- FILE_NOTIFY_CHANGE_DIR_NAME,
- dscp, cp, NULL, TRUE);
-
-done:
- cm_ReleaseSCache(dscp);
- return code;
+ goto done;
+ }
+
+ /* now check that this is a real mount point */
+ if (scp->fileType != CM_SCACHETYPE_MOUNTPOINT) {
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
+ code = CM_ERROR_INVAL;
+ goto done;
+ }
+
+ /* time to make the RPC, so drop the lock */
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
+
+ /* easier to do it this way */
+ code = cm_Unlink(dscp, cp, userp, &req);
+ if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
+ smb_NotifyChange(FILE_ACTION_REMOVED,
+ FILE_NOTIFY_CHANGE_DIR_NAME,
+ dscp, cp, NULL, TRUE);
+
+ done:
+ cm_ReleaseSCache(dscp);
+ return code;
}
long cm_IoctlCheckServers(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_cell_t *cellp;
- chservinfo_t csi;
- char *tp;
- char *cp;
- long temp;
- cm_server_t *tsp;
- int haveCell;
+ cm_cell_t *cellp;
+ chservinfo_t csi;
+ char *tp;
+ char *cp;
+ long temp;
+ cm_server_t *tsp;
+ int haveCell;
- cm_SkipIoctlPath(ioctlp); /* we don't care about the path */
- tp = ioctlp->inDatap;
- haveCell = 0;
-
- memcpy(&temp, tp, sizeof(temp));
- if (temp == 0x12345678) { /* For afs3.3 version */
- memcpy(&csi, tp, sizeof(csi));
- if (csi.tinterval >= 0) {
- cp = ioctlp->outDatap;
- memcpy(cp, (char *)&cm_daemonCheckInterval, sizeof(long));
- ioctlp->outDatap += sizeof(long);
- if (csi.tinterval > 0) {
- if (!smb_SUser(userp))
- return CM_ERROR_NOACCESS;
- cm_daemonCheckInterval = csi.tinterval;
- }
- return 0;
- }
- if (csi.tsize)
- haveCell = 1;
- temp = csi.tflags;
- cp = csi.tbuffer;
- } else { /* For pre afs3.3 versions */
- memcpy((char *)&temp, ioctlp->inDatap, sizeof(long));
- ioctlp->inDatap = cp = ioctlp->inDatap + sizeof(long);
- if (cp - ioctlp->inAllocp < ioctlp->inCopied) /* still more data available */
- haveCell = 1;
- }
-
- /*
- * 1: fast check, don't contact servers.
- * 2: local cell only.
- */
- if (haveCell) {
- /* have cell name, too */
- cellp = cm_GetCell(cp, 0);
- if (!cellp) return CM_ERROR_NOSUCHCELL;
- }
- else cellp = (cm_cell_t *) 0;
- if (!cellp && (temp & 2)) {
- /* use local cell */
- cellp = cm_FindCellByID(1);
- }
- if (!(temp & 1)) { /* if not fast, call server checker routine */
- /* check down servers */
- cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS | CM_FLAG_CHECKUPSERVERS,
- cellp);
- }
-
- /* now return the current down server list */
- cp = ioctlp->outDatap;
- lock_ObtainRead(&cm_serverLock);
- for(tsp = cm_allServersp; tsp; tsp=tsp->allNextp) {
- if (cellp && tsp->cellp != cellp) continue; /* cell spec'd and wrong */
- if ((tsp->flags & CM_SERVERFLAG_DOWN)
- && tsp->type == CM_SERVER_FILE) {
- memcpy(cp, (char *)&tsp->addr.sin_addr.s_addr, sizeof(long));
- cp += sizeof(long);
- }
- }
- lock_ReleaseRead(&cm_serverLock);
-
- ioctlp->outDatap = cp;
- return 0;
+ cm_SkipIoctlPath(ioctlp); /* we don't care about the path */
+ tp = ioctlp->inDatap;
+ haveCell = 0;
+
+ memcpy(&temp, tp, sizeof(temp));
+ if (temp == 0x12345678) { /* For afs3.3 version */
+ memcpy(&csi, tp, sizeof(csi));
+ if (csi.tinterval >= 0) {
+ cp = ioctlp->outDatap;
+ memcpy(cp, (char *)&cm_daemonCheckInterval, sizeof(long));
+ ioctlp->outDatap += sizeof(long);
+ if (csi.tinterval > 0) {
+ if (!smb_SUser(userp))
+ return CM_ERROR_NOACCESS;
+ cm_daemonCheckInterval = csi.tinterval;
+ }
+ return 0;
+ }
+ if (csi.tsize)
+ haveCell = 1;
+ temp = csi.tflags;
+ cp = csi.tbuffer;
+ } else { /* For pre afs3.3 versions */
+ memcpy((char *)&temp, ioctlp->inDatap, sizeof(long));
+ ioctlp->inDatap = cp = ioctlp->inDatap + sizeof(long);
+ if (cp - ioctlp->inAllocp < ioctlp->inCopied) /* still more data available */
+ haveCell = 1;
+ }
+
+ /*
+ * 1: fast check, don't contact servers.
+ * 2: local cell only.
+ */
+ if (haveCell) {
+ /* have cell name, too */
+ cellp = cm_GetCell(cp, 0);
+ if (!cellp) return CM_ERROR_NOSUCHCELL;
+ }
+ else cellp = (cm_cell_t *) 0;
+ if (!cellp && (temp & 2)) {
+ /* use local cell */
+ cellp = cm_FindCellByID(1);
+ }
+ if (!(temp & 1)) { /* if not fast, call server checker routine */
+ /* check down servers */
+ cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS | CM_FLAG_CHECKUPSERVERS,
+ cellp);
+ }
+
+ /* now return the current down server list */
+ cp = ioctlp->outDatap;
+ lock_ObtainRead(&cm_serverLock);
+ for (tsp = cm_allServersp; tsp; tsp=tsp->allNextp) {
+ if (cellp && tsp->cellp != cellp) continue; /* cell spec'd and wrong */
+ if ((tsp->flags & CM_SERVERFLAG_DOWN)
+ && tsp->type == CM_SERVER_FILE) {
+ memcpy(cp, (char *)&tsp->addr.sin_addr.s_addr, sizeof(long));
+ cp += sizeof(long);
+ }
+ }
+ lock_ReleaseRead(&cm_serverLock);
+
+ ioctlp->outDatap = cp;
+ return 0;
}
long cm_IoctlGag(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- /* we don't print anything superfluous, so we don't support the gag call */
- return CM_ERROR_INVAL;
+ /* we don't print anything superfluous, so we don't support the gag call */
+ return CM_ERROR_INVAL;
}
long cm_IoctlCheckVolumes(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_CheckVolumes();
- return 0;
-}
+ cm_CheckVolumes();
+ return 0;
+}
long cm_IoctlSetCacheSize(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long temp;
- long code;
-
- cm_SkipIoctlPath(ioctlp);
+ long temp;
+ long code;
- memcpy(&temp, ioctlp->inDatap, sizeof(temp));
- if (temp == 0) temp = buf_nOrigBuffers;
- else {
- /* temp is in 1K units, convert to # of buffers */
- temp = temp / (buf_bufferSize / 1024);
- }
+ cm_SkipIoctlPath(ioctlp);
+
+ memcpy(&temp, ioctlp->inDatap, sizeof(temp));
+ if (temp == 0)
+ temp = buf_nOrigBuffers;
+ else {
+ /* temp is in 1K units, convert to # of buffers */
+ temp = temp / (buf_bufferSize / 1024);
+ }
- /* now adjust the cache size */
- code = buf_SetNBuffers(temp);
+ /* now adjust the cache size */
+ code = buf_SetNBuffers(temp);
- return code;
+ return code;
}
long cm_IoctlTraceControl(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long inValue;
+ long inValue;
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- memcpy(&inValue, ioctlp->inDatap, sizeof(long));
+ memcpy(&inValue, ioctlp->inDatap, sizeof(long));
- /* print trace */
- if (inValue & 8) {
- afsd_ForceTrace(FALSE);
- }
+ /* print trace */
+ if (inValue & 8) {
+ afsd_ForceTrace(FALSE);
+ }
- if (inValue & 2) {
- /* set tracing value to low order bit */
- if ((inValue & 1) == 0) {
- /* disable tracing */
- osi_LogDisable(afsd_logp);
- }
- else {
- /* enable tracing */
- osi_LogEnable(afsd_logp);
- }
- }
-
- /* see if we're supposed to do a reset, too */
- if (inValue & 4) {
- osi_LogReset(afsd_logp);
- }
-
- /* and copy out tracing flag */
- inValue = afsd_logp->enabled; /* use as a temp vbl */
- memcpy(ioctlp->outDatap, &inValue, sizeof(long));
- ioctlp->outDatap += sizeof(long);
- return 0;
-}
+ if (inValue & 2) {
+ /* set tracing value to low order bit */
+ if ((inValue & 1) == 0) {
+ /* disable tracing */
+ osi_LogDisable(afsd_logp);
+ }
+ else {
+ /* enable tracing */
+ osi_LogEnable(afsd_logp);
+ }
+ }
+
+ /* see if we're supposed to do a reset, too */
+ if (inValue & 4) {
+ osi_LogReset(afsd_logp);
+ }
+
+ /* and copy out tracing flag */
+ inValue = afsd_logp->enabled; /* use as a temp vbl */
+ memcpy(ioctlp->outDatap, &inValue, sizeof(long));
+ ioctlp->outDatap += sizeof(long);
+ return 0;
+}
long cm_IoctlGetCacheParms(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_cacheParms_t parms;
-
- memset(&parms, 0, sizeof(parms));
+ cm_cacheParms_t parms;
- /* first we get, in 1K units, the cache size */
- parms.parms[0] = buf_nbuffers * (buf_bufferSize / 1024);
-
- /* and then the actual # of buffers in use (not in the free list, I guess,
- * will be what we do).
- */
- parms.parms[1] = (buf_nbuffers - buf_CountFreeList()) * (buf_bufferSize / 1024);
-
- memcpy(ioctlp->outDatap, &parms, sizeof(parms));
- ioctlp->outDatap += sizeof(parms);
+ memset(&parms, 0, sizeof(parms));
- return 0;
+ /* first we get, in 1K units, the cache size */
+ parms.parms[0] = buf_nbuffers * (buf_bufferSize / 1024);
+
+ /* and then the actual # of buffers in use (not in the free list, I guess,
+ * will be what we do).
+ */
+ parms.parms[1] = (buf_nbuffers - buf_CountFreeList()) * (buf_bufferSize / 1024);
+
+ memcpy(ioctlp->outDatap, &parms, sizeof(parms));
+ ioctlp->outDatap += sizeof(parms);
+
+ return 0;
}
long cm_IoctlGetCell(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long whichCell;
+ long whichCell;
long magic = 0;
- cm_cell_t *tcellp;
- cm_serverRef_t *serverRefp;
+ cm_cell_t *tcellp;
+ cm_serverRef_t *serverRefp;
cm_server_t *serverp;
- long i;
+ long i;
char *cp;
char *tp;
char *basep;
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- tp = ioctlp->inDatap;
+ tp = ioctlp->inDatap;
- memcpy((char *)&whichCell, tp, sizeof(long));
- tp += sizeof(long);
-
- /* see if more than one long passed in, ignoring the null pathname (the -1) */
- if (ioctlp->inCopied-1 > sizeof(long)) {
- memcpy((char *)&magic, tp, sizeof(long));
- }
+ memcpy((char *)&whichCell, tp, sizeof(long));
+ tp += sizeof(long);
+
+ /* see if more than one long passed in, ignoring the null pathname (the -1) */
+ if (ioctlp->inCopied-1 > sizeof(long)) {
+ memcpy((char *)&magic, tp, sizeof(long));
+ }
lock_ObtainRead(&cm_cellLock);
- for(tcellp = cm_allCellsp; tcellp; tcellp = tcellp->nextp) {
- if (whichCell == 0) break;
- whichCell--;
- }
- lock_ReleaseRead(&cm_cellLock);
- if (tcellp) {
- int max = 8;
-
- cp = ioctlp->outDatap;
-
- if (magic == 0x12345678) {
- memcpy(cp, (char *)&magic, sizeof(long));
- max = 13;
- }
- memset(cp, 0, max * sizeof(long));
+ for (tcellp = cm_allCellsp; tcellp; tcellp = tcellp->nextp) {
+ if (whichCell == 0) break;
+ whichCell--;
+ }
+ lock_ReleaseRead(&cm_cellLock);
+ if (tcellp) {
+ int max = 8;
+
+ cp = ioctlp->outDatap;
+
+ if (magic == 0x12345678) {
+ memcpy(cp, (char *)&magic, sizeof(long));
+ max = 13;
+ }
+ memset(cp, 0, max * sizeof(long));
basep = cp;
- lock_ObtainRead(&cm_serverLock); /* for going down server list */
+ lock_ObtainRead(&cm_serverLock); /* for going down server list */
/* jaltman - do the reference counts to serverRefp contents need to be increased? */
- serverRefp = tcellp->vlServersp;
- for(i=0; i<max; i++) {
- if (!serverRefp) break;
- serverp = serverRefp->server;
- memcpy(cp, &serverp->addr.sin_addr.s_addr, sizeof(long));
- cp += sizeof(long);
+ serverRefp = tcellp->vlServersp;
+ for (i=0; i<max; i++) {
+ if (!serverRefp) break;
+ serverp = serverRefp->server;
+ memcpy(cp, &serverp->addr.sin_addr.s_addr, sizeof(long));
+ cp += sizeof(long);
serverRefp = serverRefp->next;
- }
- lock_ReleaseRead(&cm_serverLock);
- cp = basep + max * sizeof(afs_int32);
- strcpy(cp, tcellp->namep);
- cp += strlen(tcellp->namep)+1;
- ioctlp->outDatap = cp;
- }
+ }
+ lock_ReleaseRead(&cm_serverLock);
+ cp = basep + max * sizeof(afs_int32);
+ strcpy(cp, tcellp->namep);
+ cp += strlen(tcellp->namep)+1;
+ ioctlp->outDatap = cp;
+ }
if (tcellp)
return 0;
* are already loaded.
* cell list will be cm_CellLock and cm_ServerLock will be held for write.
- */
+ */
cm_cell_t *cp;
cm_SkipIoctlPath(ioctlp);
lock_ObtainWrite(&cm_cellLock);
- for(cp = cm_allCellsp; cp; cp=cp->nextp)
+ for (cp = cm_allCellsp; cp; cp=cp->nextp)
{
long code;
/* delete all previous server lists - cm_FreeServerList will ask for write on cm_ServerLock*/
cp->vlServersp = NULL;
code = cm_SearchCellFile(cp->namep, cp->namep, cm_AddCellProc, cp);
#ifdef AFS_AFSDB_ENV
- if (code) {
+ if (code) {
if (cm_dnsEnabled) {
int ttl;
code = cm_SearchCellByDNS(cp->namep, cp->namep, &ttl, cm_AddCellProc, cp);
long cm_IoctlGetWsCell(smb_ioctl_t *ioctlp, cm_user_t *userp)
{
- /* if we don't know our default cell, return failure */
- if (cm_rootCellp == NULL) {
- return CM_ERROR_NOSUCHCELL;
- }
-
- /* return the default cellname to the caller */
- strcpy(ioctlp->outDatap, cm_rootCellp->namep);
- ioctlp->outDatap += strlen(ioctlp->outDatap) +1;
-
- /* done: success */
- return 0;
+ /* if we don't know our default cell, return failure */
+ if (cm_rootCellp == NULL) {
+ return CM_ERROR_NOSUCHCELL;
+ }
+
+ /* return the default cellname to the caller */
+ strcpy(ioctlp->outDatap, cm_rootCellp->namep);
+ ioctlp->outDatap += strlen(ioctlp->outDatap) +1;
+
+ /* done: success */
+ return 0;
}
long cm_IoctlSysName(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long setSysName, foundname = 0;
+ long setSysName, foundname = 0;
char *cp, *cp2, inname[MAXSYSNAME], outname[MAXSYSNAME];
int t, count, num = 0;
char **sysnamelist[MAXSYSNAME];
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
memcpy(&setSysName, ioctlp->inDatap, sizeof(long));
ioctlp->inDatap += sizeof(long);
strcpy(outname, cm_sysName);
foundname = cm_sysNameCount;
*sysnamelist = cm_sysNameList;
- } else { /* Local guy; only root can change sysname */
+ } else {
+ /* Local guy; only root can change sysname */
/* clear @sys entries from the dnlc, once afs_lookup can
* do lookups of @sys entries and thinks it can trust them */
/* privs ok, store the entry, ... */
cp = ioctlp->inDatap;
for (count = 1; count < setSysName; ++count) {
if (!cm_sysNameList[count])
- osi_panic
- ("cm_IoctlSysName: no cm_sysNameList entry to write\n"
- , __FILE__, __LINE__);
+ osi_panic("cm_IoctlSysName: no cm_sysNameList entry to write\n",
+ __FILE__, __LINE__);
t = strlen(cp);
memcpy(cm_sysNameList[count], cp, t + 1); /* include null */
cp += t + 1;
}
if (!setSysName) {
- /* return the sysname to the caller */
- cp = ioctlp->outDatap;
+ /* return the sysname to the caller */
+ cp = ioctlp->outDatap;
memcpy(cp, (char *)&foundname, sizeof(afs_int32));
cp += sizeof(afs_int32); /* skip found flag */
if (foundname) {
cp += strlen(outname) + 1; /* skip name and terminating null char */
for ( count=1; count < foundname ; ++count) { /* ... or list */
if ( !(*sysnamelist)[count] )
- osi_panic("cm_IoctlSysName: no cm_sysNameList entry to read\n"
- , __FILE__, __LINE__);
+ osi_panic("cm_IoctlSysName: no cm_sysNameList entry to read\n",
+ __FILE__, __LINE__);
t = strlen((*sysnamelist)[count]);
if (t >= MAXSYSNAME)
- osi_panic("cm_IoctlSysName: sysname entry garbled\n"
- , __FILE__, __LINE__);
+ osi_panic("cm_IoctlSysName: sysname entry garbled\n",
+ __FILE__, __LINE__);
strcpy(cp, (*sysnamelist)[count]);
cp += t + 1;
}
ioctlp->outDatap = cp;
}
- /* done: success */
+ /* done: success */
return 0;
}
long cm_IoctlGetCellStatus(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long temp;
- cm_cell_t *cellp;
+ long temp;
+ cm_cell_t *cellp;
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- cellp = cm_GetCell(ioctlp->inDatap, 0);
- if (!cellp) return CM_ERROR_NOSUCHCELL;
+ cellp = cm_GetCell(ioctlp->inDatap, 0);
+ if (!cellp)
+ return CM_ERROR_NOSUCHCELL;
- temp = 0;
- lock_ObtainMutex(&cellp->mx);
- if (cellp->flags & CM_CELLFLAG_SUID)
- temp |= CM_SETCELLFLAG_SUID;
- lock_ReleaseMutex(&cellp->mx);
+ temp = 0;
+ lock_ObtainMutex(&cellp->mx);
+ if (cellp->flags & CM_CELLFLAG_SUID)
+ temp |= CM_SETCELLFLAG_SUID;
+ lock_ReleaseMutex(&cellp->mx);
- /* now copy out parm */
- memcpy(ioctlp->outDatap, &temp, sizeof(long));
- ioctlp->outDatap += sizeof(long);
+ /* now copy out parm */
+ memcpy(ioctlp->outDatap, &temp, sizeof(long));
+ ioctlp->outDatap += sizeof(long);
- return 0;
+ return 0;
}
long cm_IoctlSetCellStatus(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long temp;
- cm_cell_t *cellp;
+ long temp;
+ cm_cell_t *cellp;
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- cellp = cm_GetCell(ioctlp->inDatap + 2*sizeof(long), 0);
- if (!cellp) return CM_ERROR_NOSUCHCELL;
+ cellp = cm_GetCell(ioctlp->inDatap + 2*sizeof(long), 0);
+ if (!cellp)
+ return CM_ERROR_NOSUCHCELL;
- memcpy((char *)&temp, ioctlp->inDatap, sizeof(long));
+ memcpy((char *)&temp, ioctlp->inDatap, sizeof(long));
- lock_ObtainMutex(&cellp->mx);
- if (temp & CM_SETCELLFLAG_SUID)
- cellp->flags |= CM_CELLFLAG_SUID;
- else
- cellp->flags &= ~CM_CELLFLAG_SUID;
- lock_ReleaseMutex(&cellp->mx);
+ lock_ObtainMutex(&cellp->mx);
+ if (temp & CM_SETCELLFLAG_SUID)
+ cellp->flags |= CM_CELLFLAG_SUID;
+ else
+ cellp->flags &= ~CM_CELLFLAG_SUID;
+ lock_ReleaseMutex(&cellp->mx);
- return 0;
+ return 0;
}
long cm_IoctlSetSPrefs(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_SSetPref_t *spin; /* input */
- cm_SPref_t *srvin; /* one input component */
- cm_server_t *tsp;
- int i, vlonly, noServers, type;
- struct sockaddr_in tmp;
- unsigned short rank;
-
- cm_SkipIoctlPath(ioctlp); /* we don't care about the path */
-
- spin = (cm_SSetPref_t *)ioctlp->inDatap;
- noServers = spin->num_servers;
- vlonly = spin->flags;
- if ( vlonly )
- type = CM_SERVER_VLDB;
- else
+ cm_SSetPref_t *spin; /* input */
+ cm_SPref_t *srvin; /* one input component */
+ cm_server_t *tsp;
+ int i, vlonly, noServers, type;
+ struct sockaddr_in tmp;
+ unsigned short rank;
+
+ cm_SkipIoctlPath(ioctlp); /* we don't care about the path */
+
+ spin = (cm_SSetPref_t *)ioctlp->inDatap;
+ noServers = spin->num_servers;
+ vlonly = spin->flags;
+ if ( vlonly )
+ type = CM_SERVER_VLDB;
+ else
type = CM_SERVER_FILE;
- for ( i=0; i < noServers; i++)
- {
- srvin = &(spin->servers[i]);
- rank = srvin->rank + (rand() & 0x000f);
- tmp.sin_addr = srvin->host;
- tmp.sin_family = AF_INET;
-
- tsp = cm_FindServer(&tmp, type);
- if ( tsp ) /* an existing server - ref count increased */
- {
- tsp->ipRank = rank; /* no need to protect by mutex*/
-
- if ( type == CM_SERVER_FILE) /* fileserver */
- {
- /* find volumes which might have RO copy
- /* on server and change the ordering of
- ** their RO list */
- cm_ChangeRankVolume(tsp);
- }
- else
- {
- /* set preferences for an existing vlserver */
- cm_ChangeRankCellVLServer(tsp);
- }
+ for ( i=0; i < noServers; i++)
+ {
+ srvin = &(spin->servers[i]);
+ rank = srvin->rank + (rand() & 0x000f);
+ tmp.sin_addr = srvin->host;
+ tmp.sin_family = AF_INET;
+
+ tsp = cm_FindServer(&tmp, type);
+ if ( tsp ) /* an existing server - ref count increased */
+ {
+ tsp->ipRank = rank; /* no need to protect by mutex*/
+
+ if ( type == CM_SERVER_FILE) /* fileserver */
+ {
+ /* find volumes which might have RO copy
+ /* on server and change the ordering of
+ ** their RO list */
+ cm_ChangeRankVolume(tsp);
+ }
+ else
+ {
+ /* set preferences for an existing vlserver */
+ cm_ChangeRankCellVLServer(tsp);
+ }
cm_PutServer(tsp); /* decrease refcount */
- }
- else /* add a new server without a cell */
- {
- tsp = cm_NewServer(&tmp, type, NULL); /* refcount = 1 */
- tsp->ipRank = rank;
- }
- }
- return 0;
+ }
+ else /* add a new server without a cell */
+ {
+ tsp = cm_NewServer(&tmp, type, NULL); /* refcount = 1 */
+ tsp->ipRank = rank;
+ }
+ }
+ return 0;
}
long cm_IoctlGetSPrefs(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_SPrefRequest_t *spin; /* input */
- cm_SPrefInfo_t *spout; /* output */
- cm_SPref_t *srvout; /* one output component */
- cm_server_t *tsp;
- int i, vlonly, noServers;
-
- cm_SkipIoctlPath(ioctlp); /* we don't care about the path */
-
- spin = (cm_SPrefRequest_t *)ioctlp->inDatap;
- spout = (cm_SPrefInfo_t *) ioctlp->outDatap;
- srvout = spout->servers;
- noServers = spin->num_servers;
- vlonly = spin->flags & CM_SPREF_VLONLY;
- spout->num_servers = 0;
-
- lock_ObtainRead(&cm_serverLock); /* get server lock */
-
- for(tsp=cm_allServersp, i=0; tsp && noServers; tsp=tsp->allNextp,i++){
- if (spin->offset > i) {
- continue; /* catch up to where we left off */
- }
-
- if ( vlonly && (tsp->type == CM_SERVER_FILE) )
- continue; /* ignore fileserver for -vlserver option*/
- if ( !vlonly && (tsp->type == CM_SERVER_VLDB) )
- continue; /* ignore vlservers */
-
- srvout->host = tsp->addr.sin_addr;
- srvout->rank = tsp->ipRank;
- srvout++;
- spout->num_servers++;
- noServers--;
- }
- lock_ReleaseRead(&cm_serverLock); /* release server lock */
-
- if ( tsp ) /* we ran out of space in the output buffer */
- spout->next_offset = i;
- else
- spout->next_offset = 0;
- ioctlp->outDatap += sizeof(cm_SPrefInfo_t) +
- (spout->num_servers -1 ) * sizeof(cm_SPref_t) ;
- return 0;
+ cm_SPrefRequest_t *spin; /* input */
+ cm_SPrefInfo_t *spout; /* output */
+ cm_SPref_t *srvout; /* one output component */
+ cm_server_t *tsp;
+ int i, vlonly, noServers;
+
+ cm_SkipIoctlPath(ioctlp); /* we don't care about the path */
+
+ spin = (cm_SPrefRequest_t *)ioctlp->inDatap;
+ spout = (cm_SPrefInfo_t *) ioctlp->outDatap;
+ srvout = spout->servers;
+ noServers = spin->num_servers;
+ vlonly = spin->flags & CM_SPREF_VLONLY;
+ spout->num_servers = 0;
+
+ lock_ObtainRead(&cm_serverLock); /* get server lock */
+
+ for (tsp=cm_allServersp, i=0; tsp && noServers; tsp=tsp->allNextp,i++){
+ if (spin->offset > i) {
+ continue; /* catch up to where we left off */
+ }
+
+ if ( vlonly && (tsp->type == CM_SERVER_FILE) )
+ continue; /* ignore fileserver for -vlserver option*/
+ if ( !vlonly && (tsp->type == CM_SERVER_VLDB) )
+ continue; /* ignore vlservers */
+
+ srvout->host = tsp->addr.sin_addr;
+ srvout->rank = tsp->ipRank;
+ srvout++;
+ spout->num_servers++;
+ noServers--;
+ }
+ lock_ReleaseRead(&cm_serverLock); /* release server lock */
+
+ if ( tsp ) /* we ran out of space in the output buffer */
+ spout->next_offset = i;
+ else
+ spout->next_offset = 0;
+ ioctlp->outDatap += sizeof(cm_SPrefInfo_t) +
+ (spout->num_servers -1 ) * sizeof(cm_SPref_t) ;
+ return 0;
}
long cm_IoctlStoreBehind(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- /* we ignore default asynchrony since we only have one way
- * of doing this today.
- */
- return 0;
-}
+ /* we ignore default asynchrony since we only have one way
+ * of doing this today.
+ */
+ return 0;
+}
long cm_IoctlCreateMountPoint(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char leaf[256];
+ char leaf[256];
long code;
cm_scache_t *dscp;
cm_attr_t tattr;
char *cp;
- cm_req_t req;
+ cm_req_t req;
char mpInfo[256];
char fullCell[256];
- char volume[256];
- char cell[256];
- int ttl;
+ char volume[256];
+ char cell[256];
+ int ttl;
- cm_InitReq(&req);
+ cm_InitReq(&req);
code = cm_ParseIoctlParent(ioctlp, userp, &req, &dscp, leaf);
if (code) return code;
* work on UNIX clients.
*/
- /* Extract the possibly partial cell name */
- strcpy(cell, ioctlp->inDatap + 1); /* Skip the mp type character */
+ /* Extract the possibly partial cell name */
+ strcpy(cell, ioctlp->inDatap + 1); /* Skip the mp type character */
if (cp = strchr(cell, ':')) {
- /* Extract the volume name */
+ /* Extract the volume name */
*cp = 0;
- strcpy(volume, cp + 1);
+ strcpy(volume, cp + 1);
/* Get the full name for this cell */
code = cm_SearchCellFile(cell, fullCell, 0, 0);
#ifdef AFS_AFSDB_ENV
- if (code && cm_dnsEnabled)
+ if (code && cm_dnsEnabled)
code = cm_SearchCellByDNS(cell, fullCell, &ttl, 0, 0);
#endif
if (code)
- return CM_ERROR_NOSUCHCELL;
+ return CM_ERROR_NOSUCHCELL;
sprintf(mpInfo, "%c%s:%s", *ioctlp->inDatap, fullCell, volume);
- } else {
+ } else {
/* No cell name specified */
strcpy(mpInfo, ioctlp->inDatap);
}
#ifdef AFS_FREELANCE_CLIENT
- if (cm_freelanceEnabled && dscp == cm_rootSCachep) {
- /* we are adding the mount point to the root dir., so call
- the freelance code to do the add. */
- osi_Log0(afsd_logp,"IoctlCreateMountPoint within Freelance root dir");
- code = cm_FreelanceAddMount(leaf, fullCell, volume,
- *ioctlp->inDatap == '%', NULL);
- return code;
- }
+ if (cm_freelanceEnabled && dscp == cm_rootSCachep) {
+ /* we are adding the mount point to the root dir., so call
+ * the freelance code to do the add. */
+ osi_Log0(afsd_logp,"IoctlCreateMountPoint within Freelance root dir");
+ code = cm_FreelanceAddMount(leaf, fullCell, volume,
+ *ioctlp->inDatap == '%', NULL);
+ return code;
+ }
#endif
- /* create the symlink with mode 644. The lack of X bits tells
+ /* create the symlink with mode 644. The lack of X bits tells
* us that it is a mount point.
*/
- tattr.mask = CM_ATTRMASK_UNIXMODEBITS | CM_ATTRMASK_CLIENTMODTIME;
+ tattr.mask = CM_ATTRMASK_UNIXMODEBITS | CM_ATTRMASK_CLIENTMODTIME;
tattr.unixModeBits = 0644;
- tattr.clientModTime = time(NULL);
+ tattr.clientModTime = time(NULL);
code = cm_SymLink(dscp, leaf, mpInfo, 0, &tattr, userp, &req);
- if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
- smb_NotifyChange(FILE_ACTION_ADDED,
+ if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
+ smb_NotifyChange(FILE_ACTION_ADDED,
FILE_NOTIFY_CHANGE_DIR_NAME,
dscp, leaf, NULL, TRUE);
long cm_IoctlSymlink(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char leaf[256];
- long code;
- cm_scache_t *dscp;
- cm_attr_t tattr;
- char *cp;
- cm_req_t req;
+ char leaf[256];
+ long code;
+ cm_scache_t *dscp;
+ cm_attr_t tattr;
+ char *cp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlParent(ioctlp, userp, &req, &dscp, leaf);
- if (code) return code;
+ code = cm_ParseIoctlParent(ioctlp, userp, &req, &dscp, leaf);
+ if (code) return code;
- /* Translate chars for the link name */
- TranslateExtendedChars(leaf);
+ /* Translate chars for the link name */
+ TranslateExtendedChars(leaf);
- /* Translate chars for the linked to name */
- TranslateExtendedChars(ioctlp->inDatap);
+ /* Translate chars for the linked to name */
+ TranslateExtendedChars(ioctlp->inDatap);
- cp = ioctlp->inDatap; /* contents of link */
+ cp = ioctlp->inDatap; /* contents of link */
- /* Create symlink with mode 0755. */
- tattr.mask = CM_ATTRMASK_UNIXMODEBITS;
- tattr.unixModeBits = 0755;
+ /* Create symlink with mode 0755. */
+ tattr.mask = CM_ATTRMASK_UNIXMODEBITS;
+ tattr.unixModeBits = 0755;
- code = cm_SymLink(dscp, leaf, cp, 0, &tattr, userp, &req);
- if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
- smb_NotifyChange(FILE_ACTION_ADDED,
- FILE_NOTIFY_CHANGE_FILE_NAME
- | FILE_NOTIFY_CHANGE_DIR_NAME,
- dscp, leaf, NULL, TRUE);
+ code = cm_SymLink(dscp, leaf, cp, 0, &tattr, userp, &req);
+ if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
+ smb_NotifyChange(FILE_ACTION_ADDED,
+ FILE_NOTIFY_CHANGE_FILE_NAME
+ | FILE_NOTIFY_CHANGE_DIR_NAME,
+ dscp, leaf, NULL, TRUE);
- cm_ReleaseSCache(dscp);
+ cm_ReleaseSCache(dscp);
- return code;
+ return code;
}
extern long cm_AssembleLink(cm_scache_t *linkScp, char *pathSuffixp,
- cm_scache_t **newRootScpp, cm_space_t **newSpaceBufferp,
- cm_user_t *userp, cm_req_t *reqp);
+ cm_scache_t **newRootScpp, cm_space_t **newSpaceBufferp,
+ cm_user_t *userp, cm_req_t *reqp);
long cm_IoctlListlink(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *dscp;
- cm_scache_t *scp;
- char *cp;
- cm_space_t *spacep;
- cm_scache_t *newRootScp;
- cm_req_t req;
-
- cm_InitReq(&req);
-
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
- if (code) return code;
-
- cp = ioctlp->inDatap;
-
- code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
- cm_ReleaseSCache(dscp);
- if (code) return code;
-
- /* Check that it's a real symlink */
- if (scp->fileType != CM_SCACHETYPE_SYMLINK){
- cm_ReleaseSCache(scp);
- return CM_ERROR_INVAL;
- }
-
- code = cm_AssembleLink(scp, "", &newRootScp, &spacep, userp, &req);
- cm_ReleaseSCache(scp);
- if (code == 0) {
- cp = ioctlp->outDatap;
- if (newRootScp != NULL) {
+ long code;
+ cm_scache_t *dscp;
+ cm_scache_t *scp;
+ char *cp;
+ cm_space_t *spacep;
+ cm_scache_t *newRootScp;
+ cm_req_t req;
+
+ cm_InitReq(&req);
+
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
+ if (code) return code;
+
+ cp = ioctlp->inDatap;
+
+ code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
+ cm_ReleaseSCache(dscp);
+ if (code) return code;
+
+ /* Check that it's a real symlink */
+ if (scp->fileType != CM_SCACHETYPE_SYMLINK){
+ cm_ReleaseSCache(scp);
+ return CM_ERROR_INVAL;
+ }
+
+ code = cm_AssembleLink(scp, "", &newRootScp, &spacep, userp, &req);
+ cm_ReleaseSCache(scp);
+ if (code == 0) {
+ cp = ioctlp->outDatap;
+ if (newRootScp != NULL) {
strcpy(cp, cm_mountRoot);
strcat(cp, "/");
- cp += strlen(cp);
- }
- strcpy(cp, spacep->data);
- cp += strlen(cp) + 1;
- ioctlp->outDatap = cp;
- cm_FreeSpace(spacep);
- if (newRootScp != NULL)
- cm_ReleaseSCache(newRootScp);
- }
-
- return code;
+ cp += strlen(cp);
+ }
+ strcpy(cp, spacep->data);
+ cp += strlen(cp) + 1;
+ ioctlp->outDatap = cp;
+ cm_FreeSpace(spacep);
+ if (newRootScp != NULL)
+ cm_ReleaseSCache(newRootScp);
+ }
+
+ return code;
}
long cm_IoctlIslink(struct smb_ioctl *ioctlp, struct cm_user *userp)
{/*CHECK FOR VALID SYMLINK*/
- long code;
- cm_scache_t *dscp;
- cm_scache_t *scp;
- char *cp;
- cm_req_t req;
+ long code;
+ cm_scache_t *dscp;
+ cm_scache_t *scp;
+ char *cp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
- if (code) return code;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
+ if (code) return code;
- cp = ioctlp->inDatap;
- osi_LogEvent("cm_IoctlListlink",NULL," name[%s]",cp);
+ cp = ioctlp->inDatap;
+ osi_LogEvent("cm_IoctlListlink",NULL," name[%s]",cp);
- code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
- cm_ReleaseSCache(dscp);
- if (code) return code;
+ code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
+ cm_ReleaseSCache(dscp);
+ if (code) return code;
- /* Check that it's a real symlink */
- if (scp->fileType != CM_SCACHETYPE_SYMLINK)
- code = CM_ERROR_INVAL;
- cm_ReleaseSCache(scp);
- return code;
+ /* Check that it's a real symlink */
+ if (scp->fileType != CM_SCACHETYPE_SYMLINK)
+ code = CM_ERROR_INVAL;
+ cm_ReleaseSCache(scp);
+ return code;
}
long cm_IoctlDeletelink(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- long code;
- cm_scache_t *dscp;
- cm_scache_t *scp;
- char *cp;
- cm_req_t req;
+ long code;
+ cm_scache_t *dscp;
+ cm_scache_t *scp;
+ char *cp;
+ cm_req_t req;
- cm_InitReq(&req);
+ cm_InitReq(&req);
- code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
- if (code) return code;
+ code = cm_ParseIoctlPath(ioctlp, userp, &req, &dscp);
+ if (code) return code;
- cp = ioctlp->inDatap;
+ cp = ioctlp->inDatap;
- code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
+ code = cm_Lookup(dscp, cp, CM_FLAG_NOMOUNTCHASE, userp, &req, &scp);
- /* if something went wrong, bail out now */
- if (code) {
- goto done;
- }
+ /* if something went wrong, bail out now */
+ if (code) {
+ goto done;
+ }
- lock_ObtainMutex(&scp->mx);
- code = cm_SyncOp(scp, NULL, userp, &req, 0,
- CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
- if (code) {
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- goto done;
- }
-
- /* now check that this is a real symlink */
- if (scp->fileType != CM_SCACHETYPE_SYMLINK) {
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- code = CM_ERROR_INVAL;
- goto done;
- }
+ lock_ObtainMutex(&scp->mx);
+ code = cm_SyncOp(scp, NULL, userp, &req, 0,
+ CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
+ if (code) {
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
+ goto done;
+ }
- /* time to make the RPC, so drop the lock */
- lock_ReleaseMutex(&scp->mx);
+ /* now check that this is a real symlink */
+ if (scp->fileType != CM_SCACHETYPE_SYMLINK) {
+ lock_ReleaseMutex(&scp->mx);
cm_ReleaseSCache(scp);
+ code = CM_ERROR_INVAL;
+ goto done;
+ }
+
+ /* time to make the RPC, so drop the lock */
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
- /* easier to do it this way */
- code = cm_Unlink(dscp, cp, userp, &req);
- if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
- smb_NotifyChange(FILE_ACTION_REMOVED,
- FILE_NOTIFY_CHANGE_FILE_NAME
- | FILE_NOTIFY_CHANGE_DIR_NAME,
- dscp, cp, NULL, TRUE);
-
-done:
- cm_ReleaseSCache(dscp);
- return code;
+ /* easier to do it this way */
+ code = cm_Unlink(dscp, cp, userp, &req);
+ if (code == 0 && (dscp->flags & CM_SCACHEFLAG_ANYWATCH))
+ smb_NotifyChange(FILE_ACTION_REMOVED,
+ FILE_NOTIFY_CHANGE_FILE_NAME
+ | FILE_NOTIFY_CHANGE_DIR_NAME,
+ dscp, cp, NULL, TRUE);
+
+ done:
+ cm_ReleaseSCache(dscp);
+ return code;
}
long cm_IoctlSetToken(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char *saveDataPtr;
- char *tp;
- int ticketLen;
- char *ticket;
- int ctSize;
- struct ClearToken ct;
- cm_cell_t *cellp;
- cm_ucell_t *ucellp;
- char *uname = NULL;
- afs_uuid_t uuid;
- int flags;
- char sessionKey[8];
- char *smbname;
-
- saveDataPtr = ioctlp->inDatap;
-
- cm_SkipIoctlPath(ioctlp);
-
- tp = ioctlp->inDatap;
-
- /* ticket length */
- memcpy(&ticketLen, tp, sizeof(ticketLen));
- tp += sizeof(ticketLen);
- if (ticketLen < MINKTCTICKETLEN || ticketLen > MAXKTCTICKETLEN)
- return CM_ERROR_INVAL;
-
- /* remember ticket and skip over it for now */
- ticket = tp;
- tp += ticketLen;
-
- /* clear token size */
- memcpy(&ctSize, tp, sizeof(ctSize));
- tp += sizeof(ctSize);
- if (ctSize != sizeof(struct ClearToken))
- return CM_ERROR_INVAL;
-
- /* clear token */
- memcpy(&ct, tp, ctSize);
- tp += ctSize;
- if (ct.AuthHandle == -1)
- ct.AuthHandle = 999; /* more rxvab compat stuff */
-
- /* more stuff, if any */
- if (ioctlp->inCopied > tp - saveDataPtr) {
- /* flags: logon flag */
- memcpy(&flags, tp, sizeof(int));
- tp += sizeof(int);
-
- /* cell name */
- cellp = cm_GetCell(tp, CM_FLAG_CREATE);
- if (!cellp) return CM_ERROR_NOSUCHCELL;
- tp += strlen(tp) + 1;
-
- /* user name */
- uname = tp;
- tp += strlen(tp) + 1;
+ char *saveDataPtr;
+ char *tp;
+ int ticketLen;
+ char *ticket;
+ int ctSize;
+ struct ClearToken ct;
+ cm_cell_t *cellp;
+ cm_ucell_t *ucellp;
+ char *uname = NULL;
+ afs_uuid_t uuid;
+ int flags;
+ char sessionKey[8];
+ char *smbname;
+
+ saveDataPtr = ioctlp->inDatap;
+
+ cm_SkipIoctlPath(ioctlp);
+
+ tp = ioctlp->inDatap;
+
+ /* ticket length */
+ memcpy(&ticketLen, tp, sizeof(ticketLen));
+ tp += sizeof(ticketLen);
+ if (ticketLen < MINKTCTICKETLEN || ticketLen > MAXKTCTICKETLEN)
+ return CM_ERROR_INVAL;
+
+ /* remember ticket and skip over it for now */
+ ticket = tp;
+ tp += ticketLen;
+
+ /* clear token size */
+ memcpy(&ctSize, tp, sizeof(ctSize));
+ tp += sizeof(ctSize);
+ if (ctSize != sizeof(struct ClearToken))
+ return CM_ERROR_INVAL;
+
+ /* clear token */
+ memcpy(&ct, tp, ctSize);
+ tp += ctSize;
+ if (ct.AuthHandle == -1)
+ ct.AuthHandle = 999; /* more rxvab compat stuff */
+
+ /* more stuff, if any */
+ if (ioctlp->inCopied > tp - saveDataPtr) {
+ /* flags: logon flag */
+ memcpy(&flags, tp, sizeof(int));
+ tp += sizeof(int);
+
+ /* cell name */
+ cellp = cm_GetCell(tp, CM_FLAG_CREATE);
+ if (!cellp) return CM_ERROR_NOSUCHCELL;
+ tp += strlen(tp) + 1;
+
+ /* user name */
+ uname = tp;
+ tp += strlen(tp) + 1;
if (flags & PIOCTL_LOGON) {
- /* SMB user name with which to associate tokens */
- smbname = tp;
- osi_Log2(smb_logp,"cm_IoctlSetToken for user [%s] smbname [%s]",
- osi_LogSaveString(smb_logp,uname), osi_LogSaveString(smb_logp,smbname));
- fprintf(stderr, "SMB name = %s\n", smbname);
- tp += strlen(tp) + 1;
+ /* SMB user name with which to associate tokens */
+ smbname = tp;
+ osi_Log2(smb_logp,"cm_IoctlSetToken for user [%s] smbname [%s]",
+ osi_LogSaveString(smb_logp,uname), osi_LogSaveString(smb_logp,smbname));
+ fprintf(stderr, "SMB name = %s\n", smbname);
+ tp += strlen(tp) + 1;
} else {
osi_Log1(smb_logp,"cm_IoctlSetToken for user [%s]",
- osi_LogSaveString(smb_logp,uname));
+ osi_LogSaveString(smb_logp,uname));
}
#ifndef DJGPP /* for win95, session key is back in pioctl */
/* uuid */
- memcpy(&uuid, tp, sizeof(uuid));
- if (!cm_FindTokenEvent(uuid, sessionKey))
- return CM_ERROR_INVAL;
+ memcpy(&uuid, tp, sizeof(uuid));
+ if (!cm_FindTokenEvent(uuid, sessionKey))
+ return CM_ERROR_INVAL;
#endif /* !DJGPP */
- } else {
- cellp = cm_rootCellp;
+ } else {
+ cellp = cm_rootCellp;
osi_Log0(smb_logp,"cm_IoctlSetToken - no name specified");
}
- if (flags & PIOCTL_LOGON) {
- userp = smb_FindCMUserByName(smbname, ioctlp->fidp->vcp->rname);
- }
-
- /* store the token */
- lock_ObtainMutex(&userp->mx);
- ucellp = cm_GetUCell(userp, cellp);
+ if (flags & PIOCTL_LOGON) {
+ userp = smb_FindCMUserByName(smbname, ioctlp->fidp->vcp->rname);
+ }
+
+ /* store the token */
+ lock_ObtainMutex(&userp->mx);
+ ucellp = cm_GetUCell(userp, cellp);
osi_Log1(smb_logp,"cm_IoctlSetToken ucellp %lx", ucellp);
- ucellp->ticketLen = ticketLen;
- if (ucellp->ticketp)
- free(ucellp->ticketp); /* Discard old token if any */
- ucellp->ticketp = malloc(ticketLen);
- memcpy(ucellp->ticketp, ticket, ticketLen);
+ ucellp->ticketLen = ticketLen;
+ if (ucellp->ticketp)
+ free(ucellp->ticketp); /* Discard old token if any */
+ ucellp->ticketp = malloc(ticketLen);
+ memcpy(ucellp->ticketp, ticket, ticketLen);
#ifndef DJGPP
- /*
- * Get the session key from the RPC, rather than from the pioctl.
- */
- /*
- memcpy(&ucellp->sessionKey, ct.HandShakeKey, sizeof(ct.HandShakeKey));
- */
- memcpy(ucellp->sessionKey.data, sessionKey, sizeof(sessionKey));
+ /*
+ * Get the session key from the RPC, rather than from the pioctl.
+ */
+ /*
+ memcpy(&ucellp->sessionKey, ct.HandShakeKey, sizeof(ct.HandShakeKey));
+ */
+ memcpy(ucellp->sessionKey.data, sessionKey, sizeof(sessionKey));
#else
- /* for win95, we are getting the session key from the pioctl */
- memcpy(&ucellp->sessionKey, ct.HandShakeKey, sizeof(ct.HandShakeKey));
+ /* for win95, we are getting the session key from the pioctl */
+ memcpy(&ucellp->sessionKey, ct.HandShakeKey, sizeof(ct.HandShakeKey));
#endif /* !DJGPP */
- ucellp->kvno = ct.AuthHandle;
- ucellp->expirationTime = ct.EndTimestamp;
- ucellp->gen++;
- if (uname) strcpy(ucellp->userName, uname);
- ucellp->flags |= CM_UCELLFLAG_RXKAD;
- lock_ReleaseMutex(&userp->mx);
-
- if (flags & PIOCTL_LOGON) {
- ioctlp->flags |= SMB_IOCTLFLAG_LOGON;
- }
+ ucellp->kvno = ct.AuthHandle;
+ ucellp->expirationTime = ct.EndTimestamp;
+ ucellp->gen++;
+ if (uname) strcpy(ucellp->userName, uname);
+ ucellp->flags |= CM_UCELLFLAG_RXKAD;
+ lock_ReleaseMutex(&userp->mx);
+
+ if (flags & PIOCTL_LOGON) {
+ ioctlp->flags |= SMB_IOCTLFLAG_LOGON;
+ }
- cm_ResetACLCache(userp);
+ cm_ResetACLCache(userp);
- return 0;
+ return 0;
}
long cm_IoctlGetTokenIter(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char *tp, *cp;
- int iterator;
- int temp;
- cm_ucell_t *ucellp;
- struct ClearToken ct;
-
- cm_SkipIoctlPath(ioctlp);
-
- tp = ioctlp->inDatap;
- cp = ioctlp->outDatap;
-
- /* iterator */
- memcpy(&iterator, tp, sizeof(iterator));
- tp += sizeof(iterator);
-
- lock_ObtainMutex(&userp->mx);
-
- /* look for token */
- for (;;iterator++) {
- ucellp = cm_FindUCell(userp, iterator);
- if (!ucellp) {
- lock_ReleaseMutex(&userp->mx);
- return CM_ERROR_NOMORETOKENS;
- }
- if (ucellp->flags & CM_UCELLFLAG_RXKAD)
- break;
- }
-
- /* new iterator */
- temp = ucellp->iterator + 1;
- memcpy(cp, &temp, sizeof(temp));
- cp += sizeof(temp);
-
- /* ticket length */
- memcpy(cp, &ucellp->ticketLen, sizeof(ucellp->ticketLen));
- cp += sizeof(ucellp->ticketLen);
-
- /* ticket */
- memcpy(cp, ucellp->ticketp, ucellp->ticketLen);
- cp += ucellp->ticketLen;
-
- /* clear token size */
- temp = sizeof(ct);
- memcpy(cp, &temp, sizeof(temp));
- cp += sizeof(temp);
-
- /* clear token */
- ct.AuthHandle = ucellp->kvno;
+ char *tp, *cp;
+ int iterator;
+ int temp;
+ cm_ucell_t *ucellp;
+ struct ClearToken ct;
+
+ cm_SkipIoctlPath(ioctlp);
+
+ tp = ioctlp->inDatap;
+ cp = ioctlp->outDatap;
+
+ /* iterator */
+ memcpy(&iterator, tp, sizeof(iterator));
+ tp += sizeof(iterator);
+
+ lock_ObtainMutex(&userp->mx);
+
+ /* look for token */
+ for (;;iterator++) {
+ ucellp = cm_FindUCell(userp, iterator);
+ if (!ucellp) {
+ lock_ReleaseMutex(&userp->mx);
+ return CM_ERROR_NOMORETOKENS;
+ }
+ if (ucellp->flags & CM_UCELLFLAG_RXKAD)
+ break;
+ }
+
+ /* new iterator */
+ temp = ucellp->iterator + 1;
+ memcpy(cp, &temp, sizeof(temp));
+ cp += sizeof(temp);
+
+ /* ticket length */
+ memcpy(cp, &ucellp->ticketLen, sizeof(ucellp->ticketLen));
+ cp += sizeof(ucellp->ticketLen);
+
+ /* ticket */
+ memcpy(cp, ucellp->ticketp, ucellp->ticketLen);
+ cp += ucellp->ticketLen;
+
+ /* clear token size */
+ temp = sizeof(ct);
+ memcpy(cp, &temp, sizeof(temp));
+ cp += sizeof(temp);
+
+ /* clear token */
+ ct.AuthHandle = ucellp->kvno;
#ifndef DJGPP
- /*
- * Don't give out a real session key here
- */
- /*
- memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
- */
- memset(ct.HandShakeKey, 0, sizeof(ct.HandShakeKey));
+ /*
+ * Don't give out a real session key here
+ */
+ /*
+ memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
+ */
+ memset(ct.HandShakeKey, 0, sizeof(ct.HandShakeKey));
#else
- memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
+ memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
#endif /* !DJGPP */
- ct.ViceId = 37; /* XXX */
- ct.BeginTimestamp = 0; /* XXX */
- ct.EndTimestamp = ucellp->expirationTime;
- memcpy(cp, &ct, sizeof(ct));
- cp += sizeof(ct);
+ ct.ViceId = 37; /* XXX */
+ ct.BeginTimestamp = 0; /* XXX */
+ ct.EndTimestamp = ucellp->expirationTime;
+ memcpy(cp, &ct, sizeof(ct));
+ cp += sizeof(ct);
- /* Primary flag (unused) */
- temp = 0;
- memcpy(cp, &temp, sizeof(temp));
- cp += sizeof(temp);
+ /* Primary flag (unused) */
+ temp = 0;
+ memcpy(cp, &temp, sizeof(temp));
+ cp += sizeof(temp);
- /* cell name */
- strcpy(cp, ucellp->cellp->namep);
- cp += strlen(cp) + 1;
+ /* cell name */
+ strcpy(cp, ucellp->cellp->namep);
+ cp += strlen(cp) + 1;
- /* user name */
- strcpy(cp, ucellp->userName);
- cp += strlen(cp) + 1;
+ /* user name */
+ strcpy(cp, ucellp->userName);
+ cp += strlen(cp) + 1;
- ioctlp->outDatap = cp;
+ ioctlp->outDatap = cp;
- lock_ReleaseMutex(&userp->mx);
+ lock_ReleaseMutex(&userp->mx);
- return 0;
+ return 0;
}
long cm_IoctlGetToken(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char *cp;
- int temp;
- cm_cell_t *cellp;
- cm_ucell_t *ucellp;
- struct ClearToken ct;
- char *tp;
+ char *cp;
+ int temp;
+ cm_cell_t *cellp;
+ cm_ucell_t *ucellp;
+ struct ClearToken ct;
+ char *tp;
#ifndef DJGPP
- afs_uuid_t uuid;
+ afs_uuid_t uuid;
#endif /* !DJGPP */
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- tp = ioctlp->inDatap;
+ tp = ioctlp->inDatap;
- cp = ioctlp->outDatap;
+ cp = ioctlp->outDatap;
- /* cell name is right here */
- cellp = cm_GetCell(tp, 0);
- if (!cellp) return CM_ERROR_NOSUCHCELL;
- tp += strlen(tp) + 1;
+ /* cell name is right here */
+ cellp = cm_GetCell(tp, 0);
+ if (!cellp) return CM_ERROR_NOSUCHCELL;
+ tp += strlen(tp) + 1;
#ifndef DJGPP
- /* uuid */
- memcpy(&uuid, tp, sizeof(uuid));
+ /* uuid */
+ memcpy(&uuid, tp, sizeof(uuid));
#endif /* !DJGPP */
- lock_ObtainMutex(&userp->mx);
+ lock_ObtainMutex(&userp->mx);
- ucellp = cm_GetUCell(userp, cellp);
- if (!ucellp || !(ucellp->flags & CM_UCELLFLAG_RXKAD)) {
- lock_ReleaseMutex(&userp->mx);
- return CM_ERROR_NOMORETOKENS;
- }
+ ucellp = cm_GetUCell(userp, cellp);
+ if (!ucellp || !(ucellp->flags & CM_UCELLFLAG_RXKAD)) {
+ lock_ReleaseMutex(&userp->mx);
+ return CM_ERROR_NOMORETOKENS;
+ }
- /* ticket length */
- memcpy(cp, &ucellp->ticketLen, sizeof(ucellp->ticketLen));
- cp += sizeof(ucellp->ticketLen);
+ /* ticket length */
+ memcpy(cp, &ucellp->ticketLen, sizeof(ucellp->ticketLen));
+ cp += sizeof(ucellp->ticketLen);
- /* ticket */
- memcpy(cp, ucellp->ticketp, ucellp->ticketLen);
- cp += ucellp->ticketLen;
+ /* ticket */
+ memcpy(cp, ucellp->ticketp, ucellp->ticketLen);
+ cp += ucellp->ticketLen;
- /* clear token size */
- temp = sizeof(ct);
- memcpy(cp, &temp, sizeof(temp));
- cp += sizeof(temp);
+ /* clear token size */
+ temp = sizeof(ct);
+ memcpy(cp, &temp, sizeof(temp));
+ cp += sizeof(temp);
- /* clear token */
- ct.AuthHandle = ucellp->kvno;
+ /* clear token */
+ ct.AuthHandle = ucellp->kvno;
#ifndef DJGPP
- /*
- * Don't give out a real session key here
- */
- /*
- memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
- */
- memset(ct.HandShakeKey, 0, sizeof(ct.HandShakeKey));
+ /*
+ * Don't give out a real session key here
+ */
+ /*
+ memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
+ */
+ memset(ct.HandShakeKey, 0, sizeof(ct.HandShakeKey));
#else
- memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
+ memcpy(ct.HandShakeKey, &ucellp->sessionKey, sizeof(ct.HandShakeKey));
#endif /* !DJGPP */
- ct.ViceId = 37; /* XXX */
- ct.BeginTimestamp = 0; /* XXX */
- ct.EndTimestamp = ucellp->expirationTime;
- memcpy(cp, &ct, sizeof(ct));
- cp += sizeof(ct);
+ ct.ViceId = 37; /* XXX */
+ ct.BeginTimestamp = 0; /* XXX */
+ ct.EndTimestamp = ucellp->expirationTime;
+ memcpy(cp, &ct, sizeof(ct));
+ cp += sizeof(ct);
- /* Primary flag (unused) */
- temp = 0;
- memcpy(cp, &temp, sizeof(temp));
- cp += sizeof(temp);
+ /* Primary flag (unused) */
+ temp = 0;
+ memcpy(cp, &temp, sizeof(temp));
+ cp += sizeof(temp);
- /* cell name */
- strcpy(cp, ucellp->cellp->namep);
- cp += strlen(cp) + 1;
+ /* cell name */
+ strcpy(cp, ucellp->cellp->namep);
+ cp += strlen(cp) + 1;
- /* user name */
- strcpy(cp, ucellp->userName);
- cp += strlen(cp) + 1;
+ /* user name */
+ strcpy(cp, ucellp->userName);
+ cp += strlen(cp) + 1;
- ioctlp->outDatap = cp;
+ ioctlp->outDatap = cp;
- lock_ReleaseMutex(&userp->mx);
+ lock_ReleaseMutex(&userp->mx);
#ifndef DJGPP
- cm_RegisterNewTokenEvent(uuid, ucellp->sessionKey.data);
+ cm_RegisterNewTokenEvent(uuid, ucellp->sessionKey.data);
#endif /* !DJGPP */
- return 0;
+ return 0;
}
long cm_IoctlDelToken(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- char *cp;
- cm_cell_t *cellp;
- cm_ucell_t *ucellp;
+ char *cp;
+ cm_cell_t *cellp;
+ cm_ucell_t *ucellp;
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- cp = ioctlp->outDatap;
+ cp = ioctlp->outDatap;
- /* cell name is right here */
- cellp = cm_GetCell(ioctlp->inDatap, 0);
- if (!cellp) return CM_ERROR_NOSUCHCELL;
+ /* cell name is right here */
+ cellp = cm_GetCell(ioctlp->inDatap, 0);
+ if (!cellp) return CM_ERROR_NOSUCHCELL;
- lock_ObtainMutex(&userp->mx);
+ lock_ObtainMutex(&userp->mx);
- ucellp = cm_GetUCell(userp, cellp);
- if (!ucellp) {
- lock_ReleaseMutex(&userp->mx);
- return CM_ERROR_NOMORETOKENS;
- }
+ ucellp = cm_GetUCell(userp, cellp);
+ if (!ucellp) {
+ lock_ReleaseMutex(&userp->mx);
+ return CM_ERROR_NOMORETOKENS;
+ }
osi_Log1(smb_logp,"cm_IoctlDelToken ucellp %lx", ucellp);
- if (ucellp->ticketp) {
- free(ucellp->ticketp);
- ucellp->ticketp = NULL;
- }
- ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
- ucellp->gen++;
+ if (ucellp->ticketp) {
+ free(ucellp->ticketp);
+ ucellp->ticketp = NULL;
+ }
+ ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
+ ucellp->gen++;
- lock_ReleaseMutex(&userp->mx);
+ lock_ReleaseMutex(&userp->mx);
- cm_ResetACLCache(userp);
+ cm_ResetACLCache(userp);
- return 0;
+ return 0;
}
long cm_IoctlDelAllToken(struct smb_ioctl *ioctlp, struct cm_user *userp)
{
- cm_ucell_t *ucellp;
+ cm_ucell_t *ucellp;
- lock_ObtainMutex(&userp->mx);
+ lock_ObtainMutex(&userp->mx);
for (ucellp = userp->cellInfop; ucellp; ucellp = ucellp->nextp) {
osi_Log1(smb_logp,"cm_IoctlDelAllToken ucellp %lx", ucellp);
- ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
- ucellp->gen++;
- }
+ ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
+ ucellp->gen++;
+ }
- lock_ReleaseMutex(&userp->mx);
+ lock_ReleaseMutex(&userp->mx);
- cm_ResetACLCache(userp);
+ cm_ResetACLCache(userp);
- return 0;
+ return 0;
}
long cm_IoctlMakeSubmount(smb_ioctl_t *ioctlp, cm_user_t *userp)
long cm_IoctlGetRxkcrypt(smb_ioctl_t *ioctlp, cm_user_t *userp)
{
- memcpy(ioctlp->outDatap, &cryptall, sizeof(cryptall));
- ioctlp->outDatap += sizeof(cryptall);
+ memcpy(ioctlp->outDatap, &cryptall, sizeof(cryptall));
+ ioctlp->outDatap += sizeof(cryptall);
- return 0;
+ return 0;
}
long cm_IoctlSetRxkcrypt(smb_ioctl_t *ioctlp, cm_user_t *userp)
{
- cm_SkipIoctlPath(ioctlp);
+ cm_SkipIoctlPath(ioctlp);
- memcpy(&cryptall, ioctlp->inDatap, sizeof(cryptall));
+ memcpy(&cryptall, ioctlp->inDatap, sizeof(cryptall));
- return 0;
+ return 0;
}
#ifdef DJGPP
if (uidp && uidp->unp) {
memcpy(ioctlp->outDatap, uidp->unp->name, strlen(uidp->unp->name));
ioctlp->outDatap += strlen(uidp->unp->name);
- }
+ }
return 0;
}
#define MAXNUMSYSNAMES 16 /* max that current constants allow */
#define MAXSYSNAME 128 /* max sysname (i.e. @sys) size */
-extern char *cm_sysName;
-extern int cm_sysNameCount;
-extern char *cm_sysNameList[MAXNUMSYSNAMES];
+extern char * cm_sysName;
+extern unsigned int cm_sysNameCount;
+extern char * cm_sysNameList[MAXNUMSYSNAMES];
#ifndef __CM_IOCTL_INTERFACES_ONLY__
void cm_CheckServers(long flags, cm_cell_t *cellp)
{
- /* ping all file servers, up or down, with unauthenticated connection,
- * to find out whether we have all our callbacks from the server still.
- * Also, ping down VLDBs.
- */
- cm_server_t *tsp;
- long code;
- long secs;
- long usecs;
- int doPing;
- int serverType;
- long now;
- int wasDown;
- cm_conn_t *connp;
+ /* ping all file servers, up or down, with unauthenticated connection,
+ * to find out whether we have all our callbacks from the server still.
+ * Also, ping down VLDBs.
+ */
+ cm_server_t *tsp;
+ long code;
+ long secs;
+ long usecs;
+ int doPing;
+ int serverType;
+ long now;
+ int wasDown;
+ cm_conn_t *connp;
- lock_ObtainWrite(&cm_serverLock);
- for(tsp = cm_allServersp; tsp; tsp = tsp->allNextp) {
+ lock_ObtainWrite(&cm_serverLock);
+ for (tsp = cm_allServersp; tsp; tsp = tsp->allNextp) {
cm_GetServerNoLock(tsp);
- lock_ReleaseWrite(&cm_serverLock);
+ lock_ReleaseWrite(&cm_serverLock);
- /* now process the server */
- lock_ObtainMutex(&tsp->mx);
+ /* now process the server */
+ lock_ObtainMutex(&tsp->mx);
- /* what time is it? */
- now = osi_Time();
+ /* what time is it? */
+ now = osi_Time();
- serverType = tsp->type;
- doPing = 0;
- wasDown = tsp->flags & CM_SERVERFLAG_DOWN;
+ serverType = tsp->type;
+ doPing = 0;
+ wasDown = tsp->flags & CM_SERVERFLAG_DOWN;
- /* only do the ping if the cell matches the requested cell, or we're
- * matching all cells (cellp == NULL), and if we've requested to ping
- * this type of {up, down} servers.
- */
- if ((cellp == NULL || cellp == tsp->cellp) &&
- ((wasDown && (flags & CM_FLAG_CHECKDOWNSERVERS)) ||
- (!wasDown && (flags & CM_FLAG_CHECKUPSERVERS)))) {
-
- doPing = 1;
- } /* we're supposed to check this up/down server */
- lock_ReleaseMutex(&tsp->mx);
-
- /* at this point, we've adjusted the server state, so do the ping and
- * adjust things.
+ /* only do the ping if the cell matches the requested cell, or we're
+ * matching all cells (cellp == NULL), and if we've requested to ping
+ * this type of {up, down} servers.
+ */
+ if ((cellp == NULL || cellp == tsp->cellp) &&
+ ((wasDown && (flags & CM_FLAG_CHECKDOWNSERVERS)) ||
+ (!wasDown && (flags & CM_FLAG_CHECKUPSERVERS)))) {
+
+ doPing = 1;
+ } /* we're supposed to check this up/down server */
+ lock_ReleaseMutex(&tsp->mx);
+
+ /* at this point, we've adjusted the server state, so do the ping and
+ * adjust things.
+ */
+ if (doPing) {
+ code = cm_ConnByServer(tsp, cm_rootUserp, &connp);
+ if (code == 0) {
+ /* now call the appropriate ping call. Drop the timeout if
+ * the server is known to be down, so that we don't waste a
+ * lot of time retiming out down servers.
*/
- if (doPing) {
- code = cm_ConnByServer(tsp, cm_rootUserp, &connp);
- if (code == 0) {
- /* now call the appropriate ping call. Drop the timeout if
- * the server is known to be down, so that we don't waste a
- * lot of time retiming out down servers.
- */
- if (wasDown)
- rx_SetConnDeadTime(connp->callp, 10);
- if (serverType == CM_SERVER_VLDB) {
- code = VL_ProbeServer(connp->callp);
- }
- else {
- /* file server */
- code = RXAFS_GetTime(connp->callp, &secs, &usecs);
- }
- if (wasDown)
- rx_SetConnDeadTime(connp->callp, ConnDeadtimeout);
- cm_PutConn(connp);
- } /* got an unauthenticated connection to this server */
-
- lock_ObtainMutex(&tsp->mx);
- if (code == 0) {
- /* mark server as up */
- tsp->flags &= ~CM_SERVERFLAG_DOWN;
- }
- else {
- /* mark server as down */
- tsp->flags |= CM_SERVERFLAG_DOWN;
- }
- lock_ReleaseMutex(&tsp->mx);
+ if (wasDown)
+ rx_SetConnDeadTime(connp->callp, 10);
+ if (serverType == CM_SERVER_VLDB) {
+ code = VL_ProbeServer(connp->callp);
}
-
- /* also, run the GC function for connections on all of the
- * server's connections.
- */
- cm_GCConnections(tsp);
+ else {
+ /* file server */
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_GetTime(connp->callp, &secs, &usecs);
+ lock_ReleaseMutex(&connp->mx);
+ }
+ if (wasDown)
+ rx_SetConnDeadTime(connp->callp, ConnDeadtimeout);
+ cm_PutConn(connp);
+ } /* got an unauthenticated connection to this server */
+
+ lock_ObtainMutex(&tsp->mx);
+ if (code == 0) {
+ /* mark server as up */
+ tsp->flags &= ~CM_SERVERFLAG_DOWN;
+ }
+ else {
+ /* mark server as down */
+ tsp->flags |= CM_SERVERFLAG_DOWN;
+ }
+ lock_ReleaseMutex(&tsp->mx);
+ }
+
+ /* also, run the GC function for connections on all of the
+ * server's connections.
+ */
+ cm_GCConnections(tsp);
- lock_ObtainWrite(&cm_serverLock);
+ lock_ObtainWrite(&cm_serverLock);
cm_PutServerNoLock(tsp);
- }
- lock_ReleaseWrite(&cm_serverLock);
-}
+ }
+ lock_ReleaseWrite(&cm_serverLock);
+}
void cm_InitServer(void)
{
- static osi_once_t once;
+ static osi_once_t once;
- if (osi_Once(&once)) {
- lock_InitializeRWLock(&cm_serverLock, "cm_serverLock");
- osi_EndOnce(&once);
- }
+ if (osi_Once(&once)) {
+ lock_InitializeRWLock(&cm_serverLock, "cm_serverLock");
+ osi_EndOnce(&once);
+ }
}
void cm_GetServer(cm_server_t *serverp)
void cm_PutServer(cm_server_t *serverp)
{
- lock_ObtainWrite(&cm_serverLock);
- osi_assert(serverp->refCount-- > 0);
- lock_ReleaseWrite(&cm_serverLock);
+ lock_ObtainWrite(&cm_serverLock);
+ osi_assert(serverp->refCount-- > 0);
+ lock_ReleaseWrite(&cm_serverLock);
}
void cm_PutServerNoLock(cm_server_t *serverp)
{
- osi_assert(serverp->refCount-- > 0);
+ osi_assert(serverp->refCount-- > 0);
}
void cm_SetServerPrefs(cm_server_t * serverp)
{
- unsigned long serverAddr; /* in host byte order */
- unsigned long myAddr, myNet, mySubnet;/* in host byte order */
- unsigned long netMask;
- int i;
-
- /* implement server prefs for fileservers only */
- if ( serverp->type == CM_SERVER_FILE )
- {
- serverAddr = ntohl(serverp->addr.sin_addr.s_addr);
- serverp->ipRank = CM_IPRANK_LOW; /* default setings */
-
- for ( i=0; i < cm_noIPAddr; i++)
- {
- /* loop through all the client's IP address and compare
- ** each of them against the server's IP address */
-
- myAddr = cm_IPAddr[i];
- if ( IN_CLASSA(myAddr) )
- netMask = IN_CLASSA_NET;
- else if ( IN_CLASSB(myAddr) )
- netMask = IN_CLASSB_NET;
- else if ( IN_CLASSC(myAddr) )
- netMask = IN_CLASSC_NET;
- else
- netMask = 0;
-
- myNet = myAddr & netMask;
- mySubnet = myAddr & cm_SubnetMask[i];
-
- if ( (serverAddr & netMask) == myNet )
- {
- if ( (serverAddr & cm_SubnetMask[i]) == mySubnet)
- {
- if ( serverAddr == myAddr )
- serverp->ipRank = min(serverp->ipRank,
- CM_IPRANK_TOP);/* same machine */
- else serverp->ipRank = min(serverp->ipRank,
- CM_IPRANK_HI); /* same subnet */
- }
- else serverp->ipRank = min(serverp->ipRank,CM_IPRANK_MED);
- /* same net */
- }
- /* random between 0..15*/
- serverp->ipRank += min(serverp->ipRank, rand() % 0x000f);
- } /* and of for loop */
- }
+ unsigned long serverAddr; /* in host byte order */
+ unsigned long myAddr, myNet, mySubnet;/* in host byte order */
+ unsigned long netMask;
+ int i;
+
+ /* implement server prefs for fileservers only */
+ if ( serverp->type == CM_SERVER_FILE )
+ {
+ serverAddr = ntohl(serverp->addr.sin_addr.s_addr);
+ serverp->ipRank = CM_IPRANK_LOW; /* default setings */
+
+ for ( i=0; i < cm_noIPAddr; i++)
+ {
+ /* loop through all the client's IP address and compare
+ ** each of them against the server's IP address */
+
+ myAddr = cm_IPAddr[i];
+ if ( IN_CLASSA(myAddr) )
+ netMask = IN_CLASSA_NET;
+ else if ( IN_CLASSB(myAddr) )
+ netMask = IN_CLASSB_NET;
+ else if ( IN_CLASSC(myAddr) )
+ netMask = IN_CLASSC_NET;
+ else
+ netMask = 0;
+
+ myNet = myAddr & netMask;
+ mySubnet = myAddr & cm_SubnetMask[i];
+
+ if ( (serverAddr & netMask) == myNet )
+ {
+ if ( (serverAddr & cm_SubnetMask[i]) == mySubnet)
+ {
+ if ( serverAddr == myAddr )
+ serverp->ipRank = min(serverp->ipRank,
+ CM_IPRANK_TOP);/* same machine */
+ else serverp->ipRank = min(serverp->ipRank,
+ CM_IPRANK_HI); /* same subnet */
+ }
+ else serverp->ipRank = min(serverp->ipRank,CM_IPRANK_MED);
+ /* same net */
+ }
+ /* random between 0..15*/
+ serverp->ipRank += min(serverp->ipRank, rand() % 0x000f);
+ } /* and of for loop */
+ }
else
serverp->ipRank = 10000 + (rand() % 0x00ff); /* VL server */
}
cm_server_t *cm_NewServer(struct sockaddr_in *socketp, int type, cm_cell_t *cellp) {
- cm_server_t *tsp;
+ cm_server_t *tsp;
- osi_assert(socketp->sin_family == AF_INET);
+ osi_assert(socketp->sin_family == AF_INET);
- tsp = malloc(sizeof(*tsp));
+ tsp = malloc(sizeof(*tsp));
memset(tsp, 0, sizeof(*tsp));
- tsp->type = type;
+ tsp->type = type;
tsp->cellp = cellp;
tsp->refCount = 1;
- lock_InitializeMutex(&tsp->mx, "cm_server_t mutex");
- tsp->addr = *socketp;
+ lock_InitializeMutex(&tsp->mx, "cm_server_t mutex");
+ tsp->addr = *socketp;
- cm_SetServerPrefs(tsp);
+ cm_SetServerPrefs(tsp);
lock_ObtainWrite(&cm_serverLock); /* get server lock */
- tsp->allNextp = cm_allServersp;
+ tsp->allNextp = cm_allServersp;
cm_allServersp = tsp;
lock_ReleaseWrite(&cm_serverLock); /* release server lock */
/* find a server based on its properties */
cm_server_t *cm_FindServer(struct sockaddr_in *addrp, int type)
{
- cm_server_t *tsp;
+ cm_server_t *tsp;
- osi_assert(addrp->sin_family == AF_INET);
+ osi_assert(addrp->sin_family == AF_INET);
- lock_ObtainWrite(&cm_serverLock);
- for(tsp = cm_allServersp; tsp; tsp=tsp->allNextp) {
- if (tsp->type == type &&
- tsp->addr.sin_addr.s_addr == addrp->sin_addr.s_addr) break;
- }
+ lock_ObtainWrite(&cm_serverLock);
+ for (tsp = cm_allServersp; tsp; tsp=tsp->allNextp) {
+ if (tsp->type == type &&
+ tsp->addr.sin_addr.s_addr == addrp->sin_addr.s_addr) break;
+ }
- /* bump ref count if we found the server */
+ /* bump ref count if we found the server */
if (tsp)
cm_GetServerNoLock(tsp);
- /* drop big table lock */
- lock_ReleaseWrite(&cm_serverLock);
+ /* drop big table lock */
+ lock_ReleaseWrite(&cm_serverLock);
- /* return what we found */
- return tsp;
-}
+ /* return what we found */
+ return tsp;
+}
cm_serverRef_t *cm_NewServerRef(cm_server_t *serverp)
{
- cm_serverRef_t *tsrp;
+ cm_serverRef_t *tsrp;
cm_GetServer(serverp);
- tsrp = malloc(sizeof(*tsrp));
- tsrp->server = serverp;
- tsrp->status = not_busy;
- tsrp->next = NULL;
+ tsrp = malloc(sizeof(*tsrp));
+ tsrp->server = serverp;
+ tsrp->status = not_busy;
+ tsrp->next = NULL;
tsrp->refCount = 1;
- return tsrp;
+ return tsrp;
}
long cm_ChecksumServerList(cm_serverRef_t *serversp)
{
- long sum = 0;
- int first = 1;
- cm_serverRef_t *tsrp;
+ long sum = 0;
+ int first = 1;
+ cm_serverRef_t *tsrp;
lock_ObtainWrite(&cm_serverLock);
- for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
- if (first)
- first = 0;
- else
- sum <<= 1;
- sum ^= (long) tsrp->server;
- }
+ for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
+ if (first)
+ first = 0;
+ else
+ sum <<= 1;
+ sum ^= (long) tsrp->server;
+ }
lock_ReleaseWrite(&cm_serverLock);
- return sum;
+ return sum;
}
/*
*/
void cm_InsertServerList(cm_serverRef_t** list, cm_serverRef_t* element)
{
- cm_serverRef_t *current=*list;
- unsigned short ipRank = element->server->ipRank;
+ cm_serverRef_t *current=*list;
+ unsigned short ipRank = element->server->ipRank;
lock_ObtainWrite(&cm_serverLock);
element->refCount++; /* increase refCount */
/* insertion into empty list or at the beginning of the list */
- if ( !current || (current->server->ipRank > ipRank) )
- {
- element->next = *list;
- *list = element;
+ if ( !current || (current->server->ipRank > ipRank) )
+ {
+ element->next = *list;
+ *list = element;
lock_ReleaseWrite(&cm_serverLock);
- return ;
- }
+ return ;
+ }
- while ( current->next ) /* find appropriate place to insert */
- {
- if ( current->next->server->ipRank > ipRank )
- break;
- else current = current->next;
- }
- element->next = current->next;
- current->next = element;
+ while ( current->next ) /* find appropriate place to insert */
+ {
+ if ( current->next->server->ipRank > ipRank )
+ break;
+ else current = current->next;
+ }
+ element->next = current->next;
+ current->next = element;
lock_ReleaseWrite(&cm_serverLock);
-}
+}
/*
** Re-sort the server list with the modified rank
** returns 0 if element was changed successfully.
*/
long cm_ChangeRankServer(cm_serverRef_t** list, cm_server_t* server)
{
- cm_serverRef_t **current=list;
- cm_serverRef_t *element=0;
+ cm_serverRef_t **current=list;
+ cm_serverRef_t *element=0;
- /* if there is max of one element in the list, nothing to sort */
- if ( (!*current) || !((*current)->next) )
- return 1; /* list unchanged: return success */
+ /* if there is max of one element in the list, nothing to sort */
+ if ( (!*current) || !((*current)->next) )
+ return 1; /* list unchanged: return success */
lock_ObtainWrite(&cm_serverLock);
- /* if the server is on the list, delete it from list */
- while ( *current )
- {
- if ( (*current)->server == server)
- {
- element = (*current);
- *current = (*current)->next; /* delete it */
- break;
- }
- current = & ( (*current)->next);
- }
+ /* if the server is on the list, delete it from list */
+ while ( *current )
+ {
+ if ( (*current)->server == server)
+ {
+ element = (*current);
+ *current = (*current)->next; /* delete it */
+ break;
+ }
+ current = & ( (*current)->next);
+ }
lock_ReleaseWrite(&cm_serverLock);
/* if this volume is not replicated on this server */
- if (!element)
- return 1; /* server is not on list */
+ if (!element)
+ return 1; /* server is not on list */
- /* re-insert deleted element into the list with modified rank*/
- cm_InsertServerList(list, element);
+ /* re-insert deleted element into the list with modified rank*/
+ cm_InsertServerList(list, element);
/* reduce refCount which was increased by cm_InsertServerList */
lock_ObtainWrite(&cm_serverLock);
element->refCount--;
lock_ReleaseWrite(&cm_serverLock);
- return 0;
+ return 0;
}
/*
** If there are more than one server on the list and the first n servers on
*/
void cm_RandomizeServer(cm_serverRef_t** list)
{
- int count, picked;
- cm_serverRef_t* tsrp = *list, *lastTsrp;
- unsigned short lowestRank;
+ int count, picked;
+ cm_serverRef_t* tsrp = *list, *lastTsrp;
+ unsigned short lowestRank;
- /* an empty list or a list with only one element */
- if ( !tsrp || ! tsrp->next )
- return ;
+ /* an empty list or a list with only one element */
+ if ( !tsrp || ! tsrp->next )
+ return ;
lock_ObtainWrite(&cm_serverLock);
- /* count the number of servers with the lowest rank */
- lowestRank = tsrp->server->ipRank;
- for ( count=1, tsrp=tsrp->next; tsrp; tsrp=tsrp->next)
- {
- if ( tsrp->server->ipRank != lowestRank)
- break;
- else
- count++;
- }
-
- /* if there is only one server with the lowest rank, we are done */
- if ( count <= 1 ) {
+ /* count the number of servers with the lowest rank */
+ lowestRank = tsrp->server->ipRank;
+ for ( count=1, tsrp=tsrp->next; tsrp; tsrp=tsrp->next)
+ {
+ if ( tsrp->server->ipRank != lowestRank)
+ break;
+ else
+ count++;
+ }
+
+ /* if there is only one server with the lowest rank, we are done */
+ if ( count <= 1 ) {
lock_ReleaseWrite(&cm_serverLock);
- return ;
- }
+ return ;
+ }
- picked = rand() % count;
- if ( !picked ) {
+ picked = rand() % count;
+ if ( !picked ) {
lock_ReleaseWrite(&cm_serverLock);
- return ;
- }
+ return ;
+ }
- tsrp = *list;
- while (--picked >= 0)
- {
- lastTsrp = tsrp;
- tsrp = tsrp->next;
- }
- lastTsrp->next = tsrp->next; /* delete random element from list*/
- tsrp->next = *list; /* insert element at the beginning of list */
- *list = tsrp;
+ tsrp = *list;
+ while (--picked >= 0)
+ {
+ lastTsrp = tsrp;
+ tsrp = tsrp->next;
+ }
+ lastTsrp->next = tsrp->next; /* delete random element from list*/
+ tsrp->next = *list; /* insert element at the beginning of list */
+ *list = tsrp;
lock_ReleaseWrite(&cm_serverLock);
-}
+}
/* call cm_FreeServer while holding a write lock on cm_serverLock */
void cm_FreeServer(cm_server_t* serverp)
{
cm_serverRef_t **current = list;
cm_serverRef_t **nextp = 0;
- cm_serverRef_t * next = 0;
+ cm_serverRef_t * next = 0;
lock_ObtainWrite(&cm_serverLock);
{
nextp = &(*current)->next;
if (--((*current)->refCount) == 0) {
- next = *nextp;
+ next = *nextp;
cm_FreeServer((*current)->server);
free(*current);
*current = next;
*/
int cm_stricmp(const char *str1, const char *str2)
{
- char c1, c2;
-
- while (1) {
- if (*str1 == 0)
- if (*str2 == 0)
- return 0;
- else
- return -1;
- if (*str2 == 0)
- return 1;
- c1 = (char) cm_foldUpper[(unsigned char)(*str1++)];
- c2 = (char) cm_foldUpper[(unsigned char)(*str2++)];
- if (c1 < c2)
- return -1;
- if (c1 > c2)
- return 1;
- }
+ char c1, c2;
+
+ while (1) {
+ if (*str1 == 0)
+ if (*str2 == 0)
+ return 0;
+ else
+ return -1;
+ if (*str2 == 0)
+ return 1;
+ c1 = (char) cm_foldUpper[(unsigned char)(*str1++)];
+ c2 = (char) cm_foldUpper[(unsigned char)(*str2++)];
+ if (c1 < c2)
+ return -1;
+ if (c1 > c2)
+ return 1;
+ }
}
/* characters that are legal in an 8.3 name */
/* return true iff component is a valid 8.3 name */
int cm_Is8Dot3(char *namep)
{
- int sawDot = 0;
- int sawUpper = 0, sawLower = 0;
- unsigned char tc;
- int charCount = 0;
+ int sawDot = 0;
+ int sawUpper = 0, sawLower = 0;
+ unsigned char tc;
+ int charCount = 0;
- /*
- * can't have a leading dot;
- * special case for . and ..
- */
- if (namep[0] == '.') {
- if (namep[1] == 0)
- return 1;
- if (namep[1] == '.' && namep[2] == 0)
- return 1;
- return 0;
- }
- while (tc = *namep++) {
- if (tc == '.') {
- /* saw another dot */
- if (sawDot) return 0; /* second dot */
- sawDot = 1;
- charCount = 0;
- continue;
- }
- if (cm_LegalChars[tc] == 0)
- return 0;
- if (tc >= 'A' && tc <= 'Z')
- sawUpper = 1;
- else if (tc >= 'a' && tc <= 'z')
- sawLower = 1;
- charCount++;
- if (!sawDot && charCount > 8)
- /* more than 8 chars in name */
- return 0;
- if (sawDot && charCount > 3)
- /* more than 3 chars in extension */
- return 0;
+ /*
+ * can't have a leading dot;
+ * special case for . and ..
+ */
+ if (namep[0] == '.') {
+ if (namep[1] == 0)
+ return 1;
+ if (namep[1] == '.' && namep[2] == 0)
+ return 1;
+ return 0;
+ }
+ while (tc = *namep++) {
+ if (tc == '.') {
+ /* saw another dot */
+ if (sawDot) return 0; /* second dot */
+ sawDot = 1;
+ charCount = 0;
+ continue;
}
-/*
- * Used to check that all characters were the same case.
- * This doesn't help 16-bit apps, and meanwhile it causes the
- * MS-DOS Command Prompt to misbehave; see Sybase defect 10709.
- *
- if (sawUpper && sawLower)
- return 0;
- */
- return 1;
+ if (cm_LegalChars[tc] == 0)
+ return 0;
+ if (tc >= 'A' && tc <= 'Z')
+ sawUpper = 1;
+ else if (tc >= 'a' && tc <= 'z')
+ sawLower = 1;
+ charCount++;
+ if (!sawDot && charCount > 8)
+ /* more than 8 chars in name */
+ return 0;
+ if (sawDot && charCount > 3)
+ /* more than 3 chars in extension */
+ return 0;
+ }
+ /*
+ * Used to check that all characters were the same case.
+ * This doesn't help 16-bit apps, and meanwhile it causes the
+ * MS-DOS Command Prompt to misbehave; see Sybase defect 10709.
+ *
+ if (sawUpper && sawLower)
+ return 0;
+ */
+ return 1;
}
/*
void cm_Gen8Dot3Name(cm_dirEntry_t *dep, char *shortName, char **shortNameEndp)
{
- char number[12];
- int i, nsize = 0;
- int vnode = ntohl(dep->fid.vnode);
- char *lastDot;
- int validExtension = 0;
- char tc, *temp, *name;
-
- /* Unparse the file's vnode number to get a "uniquifier" */
- do {
- number[nsize] = cm_8Dot3Mapping[vnode % cm_8Dot3MapSize];
- nsize++;
- vnode /= cm_8Dot3MapSize;
- } while (vnode);
-
- /*
- * Look for valid extension. There has to be a dot, and
- * at least one of the characters following has to be legal.
- */
- lastDot = strrchr(dep->name, '.');
- if (lastDot) {
- temp = lastDot; temp++;
- while (tc = *temp++)
- if (cm_LegalChars[tc])
- break;
- if (tc)
- validExtension = 1;
- }
-
- /* Copy name characters */
- name = dep->name;
- for (i = 0, name = dep->name;
- i < (7 - nsize) && name != lastDot; ) {
- tc = *name++;
-
- if (tc == 0)
- break;
- if (!cm_LegalChars[tc])
- continue;
- i++;
- *shortName++ = toupper(tc);
- }
-
- /* tilde */
- *shortName++ = '~';
-
- /* Copy uniquifier characters */
- memcpy(shortName, number, nsize);
- shortName += nsize;
-
- if (validExtension) {
- /* Copy extension characters */
- *shortName++ = *lastDot++; /* copy dot */
- for (i = 0, tc = *lastDot++;
- i < 3 && tc;
- tc = *lastDot++) {
- if (cm_LegalChars[tc]) {
- i++;
- *shortName++ = toupper(tc);
- }
- }
- }
+ char number[12];
+ int i, nsize = 0;
+ int vnode = ntohl(dep->fid.vnode);
+ char *lastDot;
+ int validExtension = 0;
+ char tc, *temp, *name;
+
+ /* Unparse the file's vnode number to get a "uniquifier" */
+ do {
+ number[nsize] = cm_8Dot3Mapping[vnode % cm_8Dot3MapSize];
+ nsize++;
+ vnode /= cm_8Dot3MapSize;
+ } while (vnode);
+
+ /*
+ * Look for valid extension. There has to be a dot, and
+ * at least one of the characters following has to be legal.
+ */
+ lastDot = strrchr(dep->name, '.');
+ if (lastDot) {
+ temp = lastDot; temp++;
+ while (tc = *temp++)
+ if (cm_LegalChars[tc])
+ break;
+ if (tc)
+ validExtension = 1;
+ }
+
+ /* Copy name characters */
+ name = dep->name;
+ for (i = 0, name = dep->name;
+ i < (7 - nsize) && name != lastDot; ) {
+ tc = *name++;
+
+ if (tc == 0)
+ break;
+ if (!cm_LegalChars[tc])
+ continue;
+ i++;
+ *shortName++ = toupper(tc);
+ }
- /* Trailing null */
- *shortName = 0;
+ /* tilde */
+ *shortName++ = '~';
+
+ /* Copy uniquifier characters */
+ memcpy(shortName, number, nsize);
+ shortName += nsize;
+
+ if (validExtension) {
+ /* Copy extension characters */
+ *shortName++ = *lastDot++; /* copy dot */
+ for (i = 0, tc = *lastDot++;
+ i < 3 && tc;
+ tc = *lastDot++) {
+ if (cm_LegalChars[tc]) {
+ i++;
+ *shortName++ = toupper(tc);
+ }
+ }
+ }
- if (shortNameEndp)
- *shortNameEndp = shortName;
-}
+ /* Trailing null */
+ *shortName = 0;
+
+ if (shortNameEndp)
+ *shortNameEndp = shortName;
+}
/* return success if we can open this file in this mode */
long cm_CheckOpen(cm_scache_t *scp, int openMode, int trunc, cm_user_t *userp,
- cm_req_t *reqp)
+ cm_req_t *reqp)
{
- long rights;
- long code;
+ long rights;
+ long code;
- rights = 0;
- if (openMode != 1) rights |= PRSFS_READ;
- if (openMode == 1 || openMode == 2 || trunc) rights |= PRSFS_WRITE;
+ rights = 0;
+ if (openMode != 1) rights |= PRSFS_READ;
+ if (openMode == 1 || openMode == 2 || trunc) rights |= PRSFS_WRITE;
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
- code = cm_SyncOp(scp, NULL, userp, reqp, rights,
- CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_NEEDCALLBACK);
- lock_ReleaseMutex(&scp->mx);
+ code = cm_SyncOp(scp, NULL, userp, reqp, rights,
+ CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_NEEDCALLBACK);
+ lock_ReleaseMutex(&scp->mx);
- return code;
+ return code;
}
/* return success if we can open this file in this mode */
long cm_CheckNTOpen(cm_scache_t *scp, unsigned int desiredAccess,
- unsigned int createDisp, cm_user_t *userp, cm_req_t *reqp)
+ unsigned int createDisp, cm_user_t *userp, cm_req_t *reqp)
{
- long rights;
- long code;
+ long rights;
+ long code;
- /* Always allow delete; the RPC will tell us if it's OK */
- if (desiredAccess == DELETE)
- return 0;
+ /* Always allow delete; the RPC will tell us if it's OK */
+ if (desiredAccess == DELETE)
+ return 0;
- rights = 0;
+ rights = 0;
- if (desiredAccess & AFS_ACCESS_READ)
- rights |= PRSFS_READ;
+ if (desiredAccess & AFS_ACCESS_READ)
+ rights |= PRSFS_READ;
- if ((desiredAccess & AFS_ACCESS_WRITE)
- || createDisp == 4)
- rights |= PRSFS_WRITE;
-
- lock_ObtainMutex(&scp->mx);
-
- code = cm_SyncOp(scp, NULL, userp, reqp, rights,
- CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_NEEDCALLBACK);
- lock_ReleaseMutex(&scp->mx);
-
- /*
- * If the open will fail because the volume is readonly, then we will
- * return an access denied error instead. This is to help brain-dead
- * apps run correctly on replicated volumes.
- * See defect 10007 for more information.
- */
- if (code == CM_ERROR_READONLY)
- code = CM_ERROR_NOACCESS;
+ if ((desiredAccess & AFS_ACCESS_WRITE)
+ || createDisp == 4)
+ rights |= PRSFS_WRITE;
- return code;
+ lock_ObtainMutex(&scp->mx);
+
+ code = cm_SyncOp(scp, NULL, userp, reqp, rights,
+ CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_NEEDCALLBACK);
+ lock_ReleaseMutex(&scp->mx);
+
+ /*
+ * If the open will fail because the volume is readonly, then we will
+ * return an access denied error instead. This is to help brain-dead
+ * apps run correctly on replicated volumes.
+ * See defect 10007 for more information.
+ */
+ if (code == CM_ERROR_READONLY)
+ code = CM_ERROR_NOACCESS;
+
+ return code;
}
/*
long cm_CheckNTDelete(cm_scache_t *dscp, cm_scache_t *scp, cm_user_t *userp,
cm_req_t *reqp)
{
- long code;
- osi_hyper_t thyper;
- cm_buf_t *bufferp;
- cm_dirEntry_t *dep;
- unsigned short *hashTable;
- unsigned int i, idx;
- int BeyondPage = 0, HaveDot = 0, HaveDotDot = 0;
-
- /* First check permissions */
- lock_ObtainMutex(&dscp->mx);
- code = cm_SyncOp(dscp, NULL, userp, reqp, PRSFS_DELETE,
- CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_NEEDCALLBACK);
- lock_ReleaseMutex(&dscp->mx);
- if (code)
- return code;
-
- /* If deleting directory, must be empty */
-
- if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
- return code;
-
- thyper.HighPart = 0; thyper.LowPart = 0;
- lock_ObtainRead(&scp->bufCreateLock);
- code = buf_Get(scp, &thyper, &bufferp);
- lock_ReleaseRead(&scp->bufCreateLock);
- if (code)
- return code;
-
- lock_ObtainMutex(&bufferp->mx);
- lock_ObtainMutex(&scp->mx);
- while (1) {
- code = cm_SyncOp(scp, bufferp, userp, reqp, 0,
- CM_SCACHESYNC_NEEDCALLBACK
- | CM_SCACHESYNC_READ
- | CM_SCACHESYNC_BUFLOCKED);
- if (code)
- break;
-
- if (cm_HaveBuffer(scp, bufferp, 1))
- break;
-
- /* otherwise, load the buffer and try again */
- lock_ReleaseMutex(&bufferp->mx);
- code = cm_GetBuffer(scp, bufferp, NULL, userp, reqp);
- lock_ReleaseMutex(&scp->mx);
- lock_ObtainMutex(&bufferp->mx);
- lock_ObtainMutex(&scp->mx);
- if (code)
- break;
- }
-
- /* We try to determine emptiness without looking beyond the first page,
- * and without assuming "." and ".." are present and are on the first
- * page (though these assumptions might, after all, be reasonable).
- */
- hashTable = (unsigned short *)(bufferp->datap + (32 * 5));
- for (i=0; i<128; i++) {
- idx = ntohs(hashTable[i]);
- while (idx) {
- if (idx >= 64) {
- BeyondPage = 1;
- break;
- }
- dep = (cm_dirEntry_t *)(bufferp->datap + (32 * idx));
- if (strcmp(dep->name, ".") == 0)
- HaveDot = 1;
- else if (strcmp(dep->name, "..") == 0)
- HaveDotDot = 1;
- else {
- code = CM_ERROR_NOTEMPTY;
- goto done;
- }
- idx = ntohs(dep->next);
- }
- }
- if (BeyondPage && HaveDot && HaveDotDot)
- code = CM_ERROR_NOTEMPTY;
- else
- code = 0;
-done:
- lock_ReleaseMutex(&bufferp->mx);
- buf_Release(bufferp);
- lock_ReleaseMutex(&scp->mx);
- return code;
-}
+ long code;
+ osi_hyper_t thyper;
+ cm_buf_t *bufferp;
+ cm_dirEntry_t *dep;
+ unsigned short *hashTable;
+ unsigned int i, idx;
+ int BeyondPage = 0, HaveDot = 0, HaveDotDot = 0;
+
+ /* First check permissions */
+ lock_ObtainMutex(&dscp->mx);
+ code = cm_SyncOp(dscp, NULL, userp, reqp, PRSFS_DELETE,
+ CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_NEEDCALLBACK);
+ lock_ReleaseMutex(&dscp->mx);
+ if (code)
+ return code;
+
+ /* If deleting directory, must be empty */
+
+ if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
+ return code;
+
+ thyper.HighPart = 0; thyper.LowPart = 0;
+ lock_ObtainRead(&scp->bufCreateLock);
+ code = buf_Get(scp, &thyper, &bufferp);
+ lock_ReleaseRead(&scp->bufCreateLock);
+ if (code)
+ return code;
+
+ lock_ObtainMutex(&bufferp->mx);
+ lock_ObtainMutex(&scp->mx);
+ while (1) {
+ code = cm_SyncOp(scp, bufferp, userp, reqp, 0,
+ CM_SCACHESYNC_NEEDCALLBACK
+ | CM_SCACHESYNC_READ
+ | CM_SCACHESYNC_BUFLOCKED);
+ if (code)
+ break;
+
+ if (cm_HaveBuffer(scp, bufferp, 1))
+ break;
+
+ /* otherwise, load the buffer and try again */
+ lock_ReleaseMutex(&bufferp->mx);
+ code = cm_GetBuffer(scp, bufferp, NULL, userp, reqp);
+ lock_ReleaseMutex(&scp->mx);
+ lock_ObtainMutex(&bufferp->mx);
+ lock_ObtainMutex(&scp->mx);
+ if (code)
+ break;
+ }
+
+ /* We try to determine emptiness without looking beyond the first page,
+ * and without assuming "." and ".." are present and are on the first
+ * page (though these assumptions might, after all, be reasonable).
+ */
+ hashTable = (unsigned short *)(bufferp->datap + (32 * 5));
+ for (i=0; i<128; i++) {
+ idx = ntohs(hashTable[i]);
+ while (idx) {
+ if (idx >= 64) {
+ BeyondPage = 1;
+ break;
+ }
+ dep = (cm_dirEntry_t *)(bufferp->datap + (32 * idx));
+ if (strcmp(dep->name, ".") == 0)
+ HaveDot = 1;
+ else if (strcmp(dep->name, "..") == 0)
+ HaveDotDot = 1;
+ else {
+ code = CM_ERROR_NOTEMPTY;
+ goto done;
+ }
+ idx = ntohs(dep->next);
+ }
+ }
+ if (BeyondPage && HaveDot && HaveDotDot)
+ code = CM_ERROR_NOTEMPTY;
+ else
+ code = 0;
+ done:
+ lock_ReleaseMutex(&bufferp->mx);
+ buf_Release(bufferp);
+ lock_ReleaseMutex(&scp->mx);
+ return code;
+}
/*
* Iterate through all entries in a directory.
* directory vnode is not.
*/
long cm_ApplyDir(cm_scache_t *scp, cm_DirFuncp_t funcp, void *parmp,
- osi_hyper_t *startOffsetp, cm_user_t *userp, cm_req_t *reqp,
- cm_scache_t **retscp)
+ osi_hyper_t *startOffsetp, cm_user_t *userp, cm_req_t *reqp,
+ cm_scache_t **retscp)
{
char *tp;
long code;
osi_hyper_t thyper;
long entryInDir;
long entryInBuffer;
- cm_pageHeader_t *pageHeaderp;
+ cm_pageHeader_t *pageHeaderp;
int slotInPage;
long nextEntryCookie;
int numDirChunks; /* # of 32 byte dir chunks in this entry */
/* get the directory size */
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
code = cm_SyncOp(scp, NULL, userp, reqp, PRSFS_LOOKUP,
- CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
- if (code) {
- lock_ReleaseMutex(&scp->mx);
+ CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
+ if (code) {
+ lock_ReleaseMutex(&scp->mx);
return code;
}
if (scp->fileType != CM_SCACHETYPE_DIRECTORY) {
- lock_ReleaseMutex(&scp->mx);
- return CM_ERROR_NOTDIR;
- }
+ lock_ReleaseMutex(&scp->mx);
+ return CM_ERROR_NOTDIR;
+ }
- if (retscp) /* if this is a lookup call */
- {
- cm_lookupSearch_t* sp = parmp;
+ if (retscp) /* if this is a lookup call */
+ {
+ cm_lookupSearch_t* sp = parmp;
int casefold = sp->caseFold;
sp->caseFold = 0; /* we have a strong preference for exact matches */
- if ( *retscp = cm_dnlcLookup(scp, sp)) /* dnlc hit */
- {
+ if ( *retscp = cm_dnlcLookup(scp, sp)) /* dnlc hit */
+ {
sp->caseFold = casefold;
- lock_ReleaseMutex(&scp->mx);
- return 0;
- }
+ lock_ReleaseMutex(&scp->mx);
+ return 0;
+ }
sp->caseFold = casefold;
- }
+ }
- /*
- * XXX We only get the length once. It might change when we drop the
- * lock.
- */
+ /*
+ * XXX We only get the length once. It might change when we drop the
+ * lock.
+ */
dirLength = scp->length;
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
bufferp = NULL;
bufferOffset.LowPart = bufferOffset.HighPart = 0;
- if (startOffsetp)
+ if (startOffsetp)
curOffset = *startOffsetp;
- else {
+ else {
curOffset.HighPart = 0;
curOffset.LowPart = 0;
- }
+ }
while (1) {
- /* make sure that curOffset.LowPart doesn't point to the first
+ /* make sure that curOffset.LowPart doesn't point to the first
* 32 bytes in the 2nd through last dir page, and that it
- * doesn't point at the first 13 32-byte chunks in the first
- * dir page, since those are dir and page headers, and don't
- * contain useful information.
+ * doesn't point at the first 13 32-byte chunks in the first
+ * dir page, since those are dir and page headers, and don't
+ * contain useful information.
*/
- temp = curOffset.LowPart & (2048-1);
+ temp = curOffset.LowPart & (2048-1);
if (curOffset.HighPart == 0 && curOffset.LowPart < 2048) {
/* we're in the first page */
if (temp < 13*32) temp = 13*32;
- }
- else {
- /* we're in a later dir page */
- if (temp < 32) temp = 32;
}
+ else {
+ /* we're in a later dir page */
+ if (temp < 32) temp = 32;
+ }
/* make sure the low order 5 bits are zero */
temp &= ~(32-1);
/* check if we've passed the dir's EOF */
if (LargeIntegerGreaterThanOrEqualTo(curOffset, dirLength))
- break;
+ break;
/* see if we can use the bufferp we have now; compute in which
* page the current offset would be, and check whether that's
- * the offset of the buffer we have. If not, get the buffer.
- */
+ * the offset of the buffer we have. If not, get the buffer.
+ */
thyper.HighPart = curOffset.HighPart;
thyper.LowPart = curOffset.LowPart & ~(buf_bufferSize-1);
if (!bufferp || !LargeIntegerEqualTo(thyper, bufferOffset)) {
- /* wrong buffer */
+ /* wrong buffer */
if (bufferp) {
- lock_ReleaseMutex(&bufferp->mx);
+ lock_ReleaseMutex(&bufferp->mx);
buf_Release(bufferp);
bufferp = NULL;
- }
+ }
- lock_ObtainRead(&scp->bufCreateLock);
+ lock_ObtainRead(&scp->bufCreateLock);
code = buf_Get(scp, &thyper, &bufferp);
- lock_ReleaseRead(&scp->bufCreateLock);
+ lock_ReleaseRead(&scp->bufCreateLock);
- lock_ObtainMutex(&bufferp->mx);
- if (code) break;
+ lock_ObtainMutex(&bufferp->mx);
+ if (code)
+ break;
bufferOffset = thyper;
/* now get the data in the cache */
while (1) {
lock_ObtainMutex(&scp->mx);
- code = cm_SyncOp(scp, bufferp, userp, reqp,
- PRSFS_LOOKUP,
- CM_SCACHESYNC_NEEDCALLBACK
- | CM_SCACHESYNC_READ
- | CM_SCACHESYNC_BUFLOCKED);
- if (code) {
- lock_ReleaseMutex(&scp->mx);
- break;
- }
+ code = cm_SyncOp(scp, bufferp, userp, reqp,
+ PRSFS_LOOKUP,
+ CM_SCACHESYNC_NEEDCALLBACK
+ | CM_SCACHESYNC_READ
+ | CM_SCACHESYNC_BUFLOCKED);
+ if (code) {
+ lock_ReleaseMutex(&scp->mx);
+ break;
+ }
if (cm_HaveBuffer(scp, bufferp, 1)) {
- lock_ReleaseMutex(&scp->mx);
- break;
- }
-
+ lock_ReleaseMutex(&scp->mx);
+ break;
+ }
+
/* otherwise, load the buffer and try again */
lock_ReleaseMutex(&bufferp->mx);
code = cm_GetBuffer(scp, bufferp, NULL, userp,
reqp);
lock_ReleaseMutex(&scp->mx);
lock_ObtainMutex(&bufferp->mx);
- if (code) break;
+ if (code)
+ break;
}
if (code) {
- lock_ReleaseMutex(&bufferp->mx);
- buf_Release(bufferp);
+ lock_ReleaseMutex(&bufferp->mx);
+ buf_Release(bufferp);
bufferp = NULL;
break;
- }
+ }
} /* if (wrong buffer) ... */
/* now we have the buffer containing the entry we're interested
* in; copy it out if it represents a non-deleted entry.
*/
- entryInDir = curOffset.LowPart & (2048-1);
+ entryInDir = curOffset.LowPart & (2048-1);
entryInBuffer = curOffset.LowPart & (buf_bufferSize - 1);
- /* page header will help tell us which entries are free. Page
- * header can change more often than once per buffer, since
- * AFS 3 dir page size may be less than (but not more than) a
- * buffer package buffer.
+ /* page header will help tell us which entries are free. Page
+ * header can change more often than once per buffer, since
+ * AFS 3 dir page size may be less than (but not more than) a
+ * buffer package buffer.
*/
- /* only look intra-buffer */
- temp = curOffset.LowPart & (buf_bufferSize - 1);
+ /* only look intra-buffer */
+ temp = curOffset.LowPart & (buf_bufferSize - 1);
temp &= ~(2048 - 1); /* turn off intra-page bits */
- pageHeaderp = (cm_pageHeader_t *) (bufferp->datap + temp);
+ pageHeaderp = (cm_pageHeader_t *) (bufferp->datap + temp);
- /* now determine which entry we're looking at in the page. If
- * it is free (there's a free bitmap at the start of the dir),
- * we should skip these 32 bytes.
+ /* now determine which entry we're looking at in the page. If
+ * it is free (there's a free bitmap at the start of the dir),
+ * we should skip these 32 bytes.
*/
slotInPage = (entryInDir & 0x7e0) >> 5;
if (!(pageHeaderp->freeBitmap[slotInPage>>3]
& (1 << (slotInPage & 0x7)))) {
- /* this entry is free */
+ /* this entry is free */
numDirChunks = 1; /* only skip this guy */
goto nextEntry;
}
- tp = bufferp->datap + entryInBuffer;
+ tp = bufferp->datap + entryInBuffer;
dep = (cm_dirEntry_t *) tp; /* now points to AFS3 dir entry */
/* while we're here, compute the next entry's location, too,
- * since we'll need it when writing out the cookie into the
- * dir listing stream.
+ * since we'll need it when writing out the cookie into the
+ * dir listing stream.
*/
- numDirChunks = cm_NameEntries(dep->name, NULL);
+ numDirChunks = cm_NameEntries(dep->name, NULL);
/* compute the offset of the cookie representing the next entry */
nextEntryCookie = curOffset.LowPart
- + (CM_DIR_CHUNKSIZE * numDirChunks);
+ + (CM_DIR_CHUNKSIZE * numDirChunks);
if (dep->fid.vnode != 0) {
- /* this is one of the entries to use: it is not deleted */
- code = (*funcp)(scp, dep, parmp, &curOffset);
- if (code) break;
- } /* if we're including this name */
+ /* this is one of the entries to use: it is not deleted */
+ code = (*funcp)(scp, dep, parmp, &curOffset);
+ if (code)
+ break;
+ } /* if we're including this name */
nextEntry:
/* and adjust curOffset to be where the new cookie is */
- thyper.HighPart = 0;
+ thyper.HighPart = 0;
thyper.LowPart = CM_DIR_CHUNKSIZE * numDirChunks;
curOffset = LargeIntegerAdd(thyper, curOffset);
} /* while copying data for dir listing */
- /* release the mutex */
+ /* release the mutex */
if (bufferp) {
- lock_ReleaseMutex(&bufferp->mx);
+ lock_ReleaseMutex(&bufferp->mx);
buf_Release(bufferp);
- }
+ }
return code;
}
int cm_NoneUpper(char *s)
{
- char c;
- while (c = *s++)
- if (c >= 'A' && c <= 'Z')
- return 0;
- return 1;
+ char c;
+ while (c = *s++)
+ if (c >= 'A' && c <= 'Z')
+ return 0;
+ return 1;
}
int cm_NoneLower(char *s)
{
- char c;
- while (c = *s++)
- if (c >= 'a' && c <= 'z')
- return 0;
- return 1;
+ char c;
+ while (c = *s++)
+ if (c >= 'a' && c <= 'z')
+ return 0;
+ return 1;
}
long cm_LookupSearchProc(cm_scache_t *scp, cm_dirEntry_t *dep, void *rockp,
- osi_hyper_t *offp)
+ osi_hyper_t *offp)
{
- cm_lookupSearch_t *sp;
+ cm_lookupSearch_t *sp;
int match;
- char shortName[13];
- char *matchName;
-
+ char shortName[13];
+ char *matchName;
+
sp = (cm_lookupSearch_t *) rockp;
- matchName = dep->name;
- if (sp->caseFold)
+ matchName = dep->name;
+ if (sp->caseFold)
match = cm_stricmp(matchName, sp->searchNamep);
- else
- match = strcmp(matchName, sp->searchNamep);
-
- if (match != 0
- && sp->hasTilde
- && !cm_Is8Dot3(dep->name)) {
- matchName = shortName;
- cm_Gen8Dot3Name(dep, shortName, NULL);
- if (sp->caseFold)
- match = cm_stricmp(matchName, sp->searchNamep);
- else
- match = strcmp(matchName, sp->searchNamep);
- }
-
- if (match != 0)
- return 0;
-
- sp->found = 1;
- if(!sp->caseFold) sp->ExactFound = 1;
-
- if (!sp->caseFold || matchName == shortName) {
- sp->fid.vnode = ntohl(dep->fid.vnode);
- sp->fid.unique = ntohl(dep->fid.unique);
+ else
+ match = strcmp(matchName, sp->searchNamep);
+
+ if (match != 0
+ && sp->hasTilde
+ && !cm_Is8Dot3(dep->name)) {
+ matchName = shortName;
+ cm_Gen8Dot3Name(dep, shortName, NULL);
+ if (sp->caseFold)
+ match = cm_stricmp(matchName, sp->searchNamep);
+ else
+ match = strcmp(matchName, sp->searchNamep);
+ }
+
+ if (match != 0)
+ return 0;
+
+ sp->found = 1;
+ if(!sp->caseFold)
+ sp->ExactFound = 1;
+
+ if (!sp->caseFold || matchName == shortName) {
+ sp->fid.vnode = ntohl(dep->fid.vnode);
+ sp->fid.unique = ntohl(dep->fid.unique);
return CM_ERROR_STOPNOW;
}
- /*
- * If we get here, we are doing a case-insensitive search, and we
- * have found a match. Now we determine what kind of match it is:
- * exact, lower-case, upper-case, or none of the above. This is done
- * in order to choose among matches, if there are more than one.
- */
+ /*
+ * If we get here, we are doing a case-insensitive search, and we
+ * have found a match. Now we determine what kind of match it is:
+ * exact, lower-case, upper-case, or none of the above. This is done
+ * in order to choose among matches, if there are more than one.
+ */
- /* Exact matches are the best. */
- match = strcmp(matchName, sp->searchNamep);
- if (match == 0) {
+ /* Exact matches are the best. */
+ match = strcmp(matchName, sp->searchNamep);
+ if (match == 0) {
sp->ExactFound = 1;
- sp->fid.vnode = ntohl(dep->fid.vnode);
- sp->fid.unique = ntohl(dep->fid.unique);
+ sp->fid.vnode = ntohl(dep->fid.vnode);
+ sp->fid.unique = ntohl(dep->fid.unique);
return CM_ERROR_STOPNOW;
}
- /* Lower-case matches are next. */
- if (sp->LCfound)
- return 0;
- if (cm_NoneUpper(matchName)) {
- sp->LCfound = 1;
- goto inexact;
- }
-
- /* Upper-case matches are next. */
- if (sp->UCfound)
- return 0;
- if (cm_NoneLower(matchName)) {
- sp->UCfound = 1;
- goto inexact;
- }
-
- /* General matches are last. */
- if (sp->NCfound)
- return 0;
- sp->NCfound = 1;
-
-inexact:
- sp->fid.vnode = ntohl(dep->fid.vnode);
- sp->fid.unique = ntohl(dep->fid.unique);
- return 0;
-}
+ /* Lower-case matches are next. */
+ if (sp->LCfound)
+ return 0;
+ if (cm_NoneUpper(matchName)) {
+ sp->LCfound = 1;
+ goto inexact;
+ }
+
+ /* Upper-case matches are next. */
+ if (sp->UCfound)
+ return 0;
+ if (cm_NoneLower(matchName)) {
+ sp->UCfound = 1;
+ goto inexact;
+ }
+
+ /* General matches are last. */
+ if (sp->NCfound)
+ return 0;
+ sp->NCfound = 1;
+
+ inexact:
+ sp->fid.vnode = ntohl(dep->fid.vnode);
+ sp->fid.unique = ntohl(dep->fid.unique);
+ return 0;
+}
/* read the contents of a mount point into the appropriate string.
* called with locked scp, and returns with locked scp.
*/
long cm_ReadMountPoint(cm_scache_t *scp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- cm_buf_t *bufp;
- osi_hyper_t thyper;
- int tlen;
+ long code;
+ cm_buf_t *bufp;
+ osi_hyper_t thyper;
+ int tlen;
- if (scp->mountPointStringp) return 0;
+ if (scp->mountPointStringp)
+ return 0;
- /* otherwise, we have to read it in */
- lock_ReleaseMutex(&scp->mx);
+ /* otherwise, we have to read it in */
+ lock_ReleaseMutex(&scp->mx);
- lock_ObtainRead(&scp->bufCreateLock);
- thyper.LowPart = thyper.HighPart = 0;
- code = buf_Get(scp, &thyper, &bufp);
- lock_ReleaseRead(&scp->bufCreateLock);
+ lock_ObtainRead(&scp->bufCreateLock);
+ thyper.LowPart = thyper.HighPart = 0;
+ code = buf_Get(scp, &thyper, &bufp);
+ lock_ReleaseRead(&scp->bufCreateLock);
- lock_ObtainMutex(&scp->mx);
+ lock_ObtainMutex(&scp->mx);
+ if (code) {
+ return code;
+ }
+ while (1) {
+ code = cm_SyncOp(scp, bufp, userp, reqp, 0,
+ CM_SCACHESYNC_READ | CM_SCACHESYNC_NEEDCALLBACK);
if (code) {
- return code;
+ goto done;
}
- while (1) {
- code = cm_SyncOp(scp, bufp, userp, reqp, 0,
- CM_SCACHESYNC_READ | CM_SCACHESYNC_NEEDCALLBACK);
- if (code) {
- goto done;
- }
-
- if (cm_HaveBuffer(scp, bufp, 0)) break;
-
- /* otherwise load buffer */
- code = cm_GetBuffer(scp, bufp, NULL, userp, reqp);
- if (code) {
- goto done;
- }
- }
- /* locked, has callback, has valid data in buffer */
- if ((tlen = scp->length.LowPart) > 1000) return CM_ERROR_TOOBIG;
- if (tlen <= 0) {
- code = CM_ERROR_INVAL;
- goto done;
- }
-
- /* someone else did the work while we were out */
- if (scp->mountPointStringp) {
- code = 0;
- goto done;
+
+ if (cm_HaveBuffer(scp, bufp, 0))
+ break;
+
+ /* otherwise load buffer */
+ code = cm_GetBuffer(scp, bufp, NULL, userp, reqp);
+ if (code) {
+ goto done;
}
-
- /* otherwise, copy out the link */
- scp->mountPointStringp = malloc(tlen);
- memcpy(scp->mountPointStringp, bufp->datap, tlen);
-
- /* now make it null-terminated. Note that the original contents of a
- * link that is a mount point is "#volname." where "." is there just to
- * be turned into a null. That is, we can trash the last char of the
- * link without damaging the vol name. This is a stupid convention,
- * but that's the protocol.
- */
- scp->mountPointStringp[tlen-1] = 0;
+ }
+ /* locked, has callback, has valid data in buffer */
+ if ((tlen = scp->length.LowPart) > 1000) return CM_ERROR_TOOBIG;
+ if (tlen <= 0) {
+ code = CM_ERROR_INVAL;
+ goto done;
+ }
+
+ /* someone else did the work while we were out */
+ if (scp->mountPointStringp) {
code = 0;
+ goto done;
+ }
-done:
- if (bufp) buf_Release(bufp);
- return code;
+ /* otherwise, copy out the link */
+ scp->mountPointStringp = malloc(tlen);
+ memcpy(scp->mountPointStringp, bufp->datap, tlen);
+
+ /* now make it null-terminated. Note that the original contents of a
+ * link that is a mount point is "#volname." where "." is there just to
+ * be turned into a null. That is, we can trash the last char of the
+ * link without damaging the vol name. This is a stupid convention,
+ * but that's the protocol.
+ */
+ scp->mountPointStringp[tlen-1] = 0;
+ code = 0;
+
+ done:
+ if (bufp)
+ buf_Release(bufp);
+ return code;
}
/* called with a locked scp and chases the mount point, yielding outScpp.
* scp remains locked, just for simplicity of describing the interface.
*/
long cm_FollowMountPoint(cm_scache_t *scp, cm_scache_t *dscp, cm_user_t *userp,
- cm_req_t *reqp, cm_scache_t **outScpp)
+ cm_req_t *reqp, cm_scache_t **outScpp)
{
- char *cellNamep;
- char *volNamep;
- int tlen;
- long code;
- char *cp;
- char *mpNamep;
- cm_volume_t *volp;
- cm_cell_t *cellp;
- char mtType;
- cm_fid_t tfid;
- size_t vnLength;
- int type;
-
- if (scp->mountRootFidp && scp->mountRootGen >= cm_mountRootGen) {
- tfid = *scp->mountRootFidp;
- lock_ReleaseMutex(&scp->mx);
- code = cm_GetSCache(&tfid, outScpp, userp, reqp);
- lock_ObtainMutex(&scp->mx);
- return code;
- }
-
- /* parse the volume name */
- mpNamep = scp->mountPointStringp;
- osi_assert(mpNamep);
- tlen = strlen(scp->mountPointStringp);
- mtType = *scp->mountPointStringp;
- cellNamep = malloc(tlen);
- volNamep = malloc(tlen);
-
- cp = strrchr(mpNamep, ':');
- if (cp) {
- /* cellular mount point */
- memset(cellNamep, 0, tlen);
- strncpy(cellNamep, mpNamep+1, cp - mpNamep - 1);
- strcpy(volNamep, cp+1);
- /* now look up the cell */
- cellp = cm_GetCell(cellNamep, CM_FLAG_CREATE);
- }
- else {
- /* normal mt pt */
- strcpy(volNamep, mpNamep+1);
-
- cellp = cm_FindCellByID(scp->fid.cell);
- }
-
- if (!cellp) {
- code = CM_ERROR_NOSUCHCELL;
- goto done;
- }
-
- vnLength = strlen(volNamep);
- if (vnLength >= 8 && strcmp(volNamep + vnLength - 7, ".backup") == 0)
- type = BACKVOL;
- else if (vnLength >= 10
- && strcmp(volNamep + vnLength - 9, ".readonly") == 0)
- type = ROVOL;
- else
- type = RWVOL;
-
- /* check for backups within backups */
- if (type == BACKVOL
- && (scp->flags & (CM_SCACHEFLAG_RO | CM_SCACHEFLAG_PURERO))
- == CM_SCACHEFLAG_RO) {
- code = CM_ERROR_NOSUCHVOLUME;
- goto done;
- }
-
- /* now we need to get the volume */
+ char *cellNamep;
+ char *volNamep;
+ int tlen;
+ long code;
+ char *cp;
+ char *mpNamep;
+ cm_volume_t *volp;
+ cm_cell_t *cellp;
+ char mtType;
+ cm_fid_t tfid;
+ size_t vnLength;
+ int type;
+
+ if (scp->mountRootFidp && scp->mountRootGen >= cm_mountRootGen) {
+ tfid = *scp->mountRootFidp;
lock_ReleaseMutex(&scp->mx);
- code = cm_GetVolumeByName(cellp, volNamep, userp, reqp, 0, &volp);
+ code = cm_GetSCache(&tfid, outScpp, userp, reqp);
lock_ObtainMutex(&scp->mx);
-
- if (code == 0) {
- /* save the parent of the volume root for this is the
- * place where the volume is mounted and we must remember
- * this in the volume structure rather than just in the
- * scache entry lest the scache entry gets recycled
- * (defect 11489)
- */
- lock_ObtainMutex(&volp->mx);
- if(volp->dotdotFidp == (cm_fid_t *) NULL)
- volp->dotdotFidp = (cm_fid_t *) malloc(sizeof(cm_fid_t));
- *(volp->dotdotFidp) = dscp->fid;
- lock_ReleaseMutex(&volp->mx);
-
- if (scp->mountRootFidp == 0) {
- scp->mountRootFidp = malloc(sizeof(cm_fid_t));
- }
- scp->mountRootFidp->cell = cellp->cellID;
- /* if the mt pt is in a read-only volume (not just a
- * backup), and if there is a read-only volume for the
- * target, and if this is a type '#' mount point, use
- * the read-only, otherwise use the one specified.
- */
- if (mtType == '#' && (scp->flags & CM_SCACHEFLAG_PURERO)
- && volp->roID != 0 && type == RWVOL)
- type = ROVOL;
- if (type == ROVOL)
- scp->mountRootFidp->volume = volp->roID;
- else if (type == BACKVOL)
- scp->mountRootFidp->volume = volp->bkID;
- else
- scp->mountRootFidp->volume = volp->rwID;
-
- /* the rest of the fid is a magic number */
- scp->mountRootFidp->vnode = 1;
- scp->mountRootFidp->unique = 1;
- scp->mountRootGen = cm_mountRootGen;
-
- tfid = *scp->mountRootFidp;
- lock_ReleaseMutex(&scp->mx);
- code = cm_GetSCache(&tfid, outScpp, userp, reqp);
- lock_ObtainMutex(&scp->mx);
- }
-
-done:
- free(cellNamep);
- free(volNamep);
return code;
-}
+ }
-int cm_ExpandSysName(char *inp, char *outp, long outSize)
-{
- char *tp;
- int prefixCount;
+ /* parse the volume name */
+ mpNamep = scp->mountPointStringp;
+ osi_assert(mpNamep);
+ tlen = strlen(scp->mountPointStringp);
+ mtType = *scp->mountPointStringp;
+ cellNamep = malloc(tlen);
+ volNamep = malloc(tlen);
+
+ cp = strrchr(mpNamep, ':');
+ if (cp) {
+ /* cellular mount point */
+ memset(cellNamep, 0, tlen);
+ strncpy(cellNamep, mpNamep+1, cp - mpNamep - 1);
+ strcpy(volNamep, cp+1);
+ /* now look up the cell */
+ cellp = cm_GetCell(cellNamep, CM_FLAG_CREATE);
+ }
+ else {
+ /* normal mt pt */
+ strcpy(volNamep, mpNamep+1);
- tp = strrchr(inp, '@');
- if (tp == NULL) return 0; /* no @sys */
+ cellp = cm_FindCellByID(scp->fid.cell);
+ }
- if (strcmp(tp, "@sys") != 0) return 0; /* no @sys */
+ if (!cellp) {
+ code = CM_ERROR_NOSUCHCELL;
+ goto done;
+ }
- /* caller just wants to know if this is a valid @sys type of name */
- if (outp == NULL) return 1;
+ vnLength = strlen(volNamep);
+ if (vnLength >= 8 && strcmp(volNamep + vnLength - 7, ".backup") == 0)
+ type = BACKVOL;
+ else if (vnLength >= 10
+ && strcmp(volNamep + vnLength - 9, ".readonly") == 0)
+ type = ROVOL;
+ else
+ type = RWVOL;
+
+ /* check for backups within backups */
+ if (type == BACKVOL
+ && (scp->flags & (CM_SCACHEFLAG_RO | CM_SCACHEFLAG_PURERO))
+ == CM_SCACHEFLAG_RO) {
+ code = CM_ERROR_NOSUCHVOLUME;
+ goto done;
+ }
- /* otherwise generate the properly expanded @sys name */
- prefixCount = tp - inp;
+ /* now we need to get the volume */
+ lock_ReleaseMutex(&scp->mx);
+ code = cm_GetVolumeByName(cellp, volNamep, userp, reqp, 0, &volp);
+ lock_ObtainMutex(&scp->mx);
+
+ if (code == 0) {
+ /* save the parent of the volume root for this is the
+ * place where the volume is mounted and we must remember
+ * this in the volume structure rather than just in the
+ * scache entry lest the scache entry gets recycled
+ * (defect 11489)
+ */
+ lock_ObtainMutex(&volp->mx);
+ if(volp->dotdotFidp == (cm_fid_t *) NULL)
+ volp->dotdotFidp = (cm_fid_t *) malloc(sizeof(cm_fid_t));
+ *(volp->dotdotFidp) = dscp->fid;
+ lock_ReleaseMutex(&volp->mx);
+
+ if (scp->mountRootFidp == 0) {
+ scp->mountRootFidp = malloc(sizeof(cm_fid_t));
+ }
+ scp->mountRootFidp->cell = cellp->cellID;
+ /* if the mt pt is in a read-only volume (not just a
+ * backup), and if there is a read-only volume for the
+ * target, and if this is a type '#' mount point, use
+ * the read-only, otherwise use the one specified.
+ */
+ if (mtType == '#' && (scp->flags & CM_SCACHEFLAG_PURERO)
+ && volp->roID != 0 && type == RWVOL)
+ type = ROVOL;
+ if (type == ROVOL)
+ scp->mountRootFidp->volume = volp->roID;
+ else if (type == BACKVOL)
+ scp->mountRootFidp->volume = volp->bkID;
+ else
+ scp->mountRootFidp->volume = volp->rwID;
+
+ /* the rest of the fid is a magic number */
+ scp->mountRootFidp->vnode = 1;
+ scp->mountRootFidp->unique = 1;
+ scp->mountRootGen = cm_mountRootGen;
+
+ tfid = *scp->mountRootFidp;
+ lock_ReleaseMutex(&scp->mx);
+ code = cm_GetSCache(&tfid, outScpp, userp, reqp);
+ lock_ObtainMutex(&scp->mx);
+ }
- strncpy(outp, inp, prefixCount); /* copy out "a." from "a.@sys" */
- outp[prefixCount] = 0; /* null terminate the "a." */
- strcat(outp, cm_sysName); /* append i386_nt40 */
- return 1;
-}
+ done:
+ free(cellNamep);
+ free(volNamep);
+ return code;
+}
-long cm_Lookup(cm_scache_t *dscp, char *namep, long flags, cm_user_t *userp,
- cm_req_t *reqp, cm_scache_t **outpScpp)
+long cm_LookupInternal(cm_scache_t *dscp, char *namep, long flags, cm_user_t *userp,
+ cm_req_t *reqp, cm_scache_t **outpScpp)
{
- long code;
- int dnlcHit = 1; /* did we hit in the dnlc? yes, we did */
+ long code;
+ int dnlcHit = 1; /* did we hit in the dnlc? yes, we did */
cm_scache_t *tscp = NULL;
cm_scache_t *mountedScp;
cm_lookupSearch_t rock;
- char tname[256];
- int getroot;
+ int getroot;
- if (dscp->fid.vnode == 1 && dscp->fid.unique == 1
+ if (dscp->fid.vnode == 1 && dscp->fid.unique == 1
&& strcmp(namep, "..") == 0) {
- if (dscp->dotdotFidp == (cm_fid_t *)NULL
+ if (dscp->dotdotFidp == (cm_fid_t *)NULL
|| dscp->dotdotFidp->volume == 0)
- return CM_ERROR_NOSUCHVOLUME;
- rock.fid = *dscp->dotdotFidp;
- goto haveFid;
- }
-
- if (cm_ExpandSysName(namep, tname, sizeof(tname))) {
- namep = tname;
+ return CM_ERROR_NOSUCHVOLUME;
+ rock.fid = *dscp->dotdotFidp;
+ goto haveFid;
}
- memset(&rock, 0, sizeof(rock));
+
+ memset(&rock, 0, sizeof(rock));
rock.fid.cell = dscp->fid.cell;
rock.fid.volume = dscp->fid.volume;
rock.searchNamep = namep;
rock.caseFold = (flags & CM_FLAG_CASEFOLD);
- rock.hasTilde = ((strchr(namep, '~') != NULL) ? 1 : 0);
+ rock.hasTilde = ((strchr(namep, '~') != NULL) ? 1 : 0);
- /* If NOMOUNTCHASE, bypass DNLC by passing NULL scp pointer */
- code = cm_ApplyDir(dscp, cm_LookupSearchProc, &rock, NULL, userp, reqp,
- (flags & CM_FLAG_NOMOUNTCHASE) ? NULL : &tscp);
+ /* If NOMOUNTCHASE, bypass DNLC by passing NULL scp pointer */
+ code = cm_ApplyDir(dscp, cm_LookupSearchProc, &rock, NULL, userp, reqp,
+ (flags & CM_FLAG_NOMOUNTCHASE) ? NULL : &tscp);
- /* code == 0 means we fell off the end of the dir, while stopnow means
+ /* code == 0 means we fell off the end of the dir, while stopnow means
* that we stopped early, probably because we found the entry we're
- * looking for. Any other non-zero code is an error.
+ * looking for. Any other non-zero code is an error.
*/
if (code && code != CM_ERROR_STOPNOW)
return code;
- getroot = (dscp==cm_rootSCachep) ;
+ getroot = (dscp==cm_rootSCachep) ;
if (!rock.found) {
if (!cm_freelanceEnabled || !getroot) {
if (flags & CM_FLAG_CHECKPATH)
return CM_ERROR_NOSUCHFILE;
}
else { /* nonexistent dir on freelance root, so add it */
- osi_Log1(afsd_logp,"cm_Lookup adding mount for non-existent directory: %s",
- osi_LogSaveString(afsd_logp,namep));
- code = cm_FreelanceAddMount(namep, namep, "root.cell.", namep[0] == '.', &rock.fid);
+ osi_Log1(afsd_logp,"cm_Lookup adding mount for non-existent directory: %s",
+ osi_LogSaveString(afsd_logp,namep));
+ code = cm_FreelanceAddMount(namep, namep, "root.cell.", namep[0] == '.', &rock.fid);
if (code < 0) { /* add mount point failed, so give up */
if (flags & CM_FLAG_CHECKPATH)
return CM_ERROR_NOSUCHPATH;
}
tscp = NULL; /* to force call of cm_GetSCache */
}
- }
+ }
-haveFid:
- if ( !tscp ) /* we did not find it in the dnlc */
- {
- dnlcHit = 0;
+ haveFid:
+ if ( !tscp ) /* we did not find it in the dnlc */
+ {
+ dnlcHit = 0;
code = cm_GetSCache(&rock.fid, &tscp, userp, reqp);
if (code)
return code;
- }
+ }
/* tscp is now held */
- lock_ObtainMutex(&tscp->mx);
- code = cm_SyncOp(tscp, NULL, userp, reqp, 0,
+ lock_ObtainMutex(&tscp->mx);
+ code = cm_SyncOp(tscp, NULL, userp, reqp, 0,
CM_SCACHESYNC_GETSTATUS | CM_SCACHESYNC_NEEDCALLBACK);
if (code) {
- lock_ReleaseMutex(&tscp->mx);
- cm_ReleaseSCache(tscp);
+ lock_ReleaseMutex(&tscp->mx);
+ cm_ReleaseSCache(tscp);
return code;
- }
+ }
/* tscp is now locked */
if (!(flags & CM_FLAG_NOMOUNTCHASE)
- && tscp->fileType == CM_SCACHETYPE_MOUNTPOINT) {
- /* mount points are funny: they have a volume name to mount
+ && tscp->fileType == CM_SCACHETYPE_MOUNTPOINT) {
+ /* mount points are funny: they have a volume name to mount
* the root of.
*/
- code = cm_ReadMountPoint(tscp, userp, reqp);
+ code = cm_ReadMountPoint(tscp, userp, reqp);
if (code == 0)
- code = cm_FollowMountPoint(tscp, dscp, userp, reqp,
+ code = cm_FollowMountPoint(tscp, dscp, userp, reqp,
&mountedScp);
- lock_ReleaseMutex(&tscp->mx);
- cm_ReleaseSCache(tscp);
- if (code) {
+ lock_ReleaseMutex(&tscp->mx);
+ cm_ReleaseSCache(tscp);
+ if (code) {
return code;
}
tscp = mountedScp;
}
- else {
- lock_ReleaseMutex(&tscp->mx);
- }
+ else {
+ lock_ReleaseMutex(&tscp->mx);
+ }
- /* copy back pointer */
+ /* copy back pointer */
*outpScpp = tscp;
- /* insert scache in dnlc */
- if ( !dnlcHit && !(flags & CM_FLAG_NOMOUNTCHASE) && rock.ExactFound ) {
- /* lock the directory entry to prevent racing callback revokes */
- lock_ObtainMutex(&dscp->mx);
- if ( dscp->cbServerp && dscp->cbExpires )
+ /* insert scache in dnlc */
+ if ( !dnlcHit && !(flags & CM_FLAG_NOMOUNTCHASE) && rock.ExactFound ) {
+ /* lock the directory entry to prevent racing callback revokes */
+ lock_ObtainMutex(&dscp->mx);
+ if ( dscp->cbServerp && dscp->cbExpires )
cm_dnlcEnter(dscp, namep, tscp);
- lock_ReleaseMutex(&dscp->mx);
- }
+ lock_ReleaseMutex(&dscp->mx);
+ }
- /* and return */
+ /* and return */
return 0;
}
+int cm_ExpandSysName(char *inp, char *outp, long outSize, unsigned int index)
+{
+ char *tp;
+ int prefixCount;
+
+ tp = strrchr(inp, '@');
+ if (tp == NULL)
+ return 0; /* no @sys */
+
+ if (strcmp(tp, "@sys") != 0)
+ return 0; /* no @sys */
+
+ /* caller just wants to know if this is a valid @sys type of name */
+ if (outp == NULL)
+ return 1;
+
+ if (index >= MAXNUMSYSNAMES)
+ return -1;
+
+ /* otherwise generate the properly expanded @sys name */
+ prefixCount = tp - inp;
+
+ strncpy(outp, inp, prefixCount); /* copy out "a." from "a.@sys" */
+ outp[prefixCount] = 0; /* null terminate the "a." */
+ strcat(outp, cm_sysNameList[index]);/* append i386_nt40 */
+ return 1;
+}
+
+long cm_Lookup(cm_scache_t *dscp, char *namep, long flags, cm_user_t *userp,
+ cm_req_t *reqp, cm_scache_t **outpScpp)
+{
+ long code;
+ char tname[256];
+ int sysNameIndex = 0;
+ cm_scache_t *scp = 0;
+
+ for ( sysNameIndex = 0; sysNameIndex < MAXNUMSYSNAMES; sysNameIndex++) {
+ code = cm_ExpandSysName(namep, tname, sizeof(tname), sysNameIndex);
+ if (code > 0) {
+ code = cm_LookupInternal(dscp, tname, flags, userp, reqp, &scp);
+ if (code == 0) {
+ *outpScpp = scp;
+ return 0;
+ }
+ if (scp) {
+ cm_ReleaseSCache(scp);
+ scp = 0;
+ }
+ } else {
+ return cm_LookupInternal(dscp, namep, flags, userp, reqp, outpScpp);
+ }
+ }
+
+ /* None of the possible sysName expansions could be found */
+ if (flags & CM_FLAG_CHECKPATH)
+ return CM_ERROR_NOSUCHPATH;
+ else
+ return CM_ERROR_NOSUCHFILE;
+}
+
long cm_Unlink(cm_scache_t *dscp, char *namep, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- cm_conn_t *connp;
- AFSFid afsFid;
- int sflags;
- AFSFetchStatus newDirStatus;
- AFSVolSync volSync;
+ long code;
+ cm_conn_t *connp;
+ AFSFid afsFid;
+ int sflags;
+ AFSFetchStatus newDirStatus;
+ AFSVolSync volSync;
#ifdef AFS_FREELANCE_CLIENT
- if (cm_freelanceEnabled && dscp == cm_rootSCachep) {
- /* deleting a mount point from the root dir. */
- code = cm_FreelanceRemoveMount(namep);
- return code;
- }
-#endif
+ if (cm_freelanceEnabled && dscp == cm_rootSCachep) {
+ /* deleting a mount point from the root dir. */
+ code = cm_FreelanceRemoveMount(namep);
+ return code;
+ }
+#endif
- /* make sure we don't screw up the dir status during the merge */
- lock_ObtainMutex(&dscp->mx);
- sflags = CM_SCACHESYNC_STOREDATA;
- code = cm_SyncOp(dscp, NULL, userp, reqp, 0, sflags);
- lock_ReleaseMutex(&dscp->mx);
- if (code) return code;
+ /* make sure we don't screw up the dir status during the merge */
+ lock_ObtainMutex(&dscp->mx);
+ sflags = CM_SCACHESYNC_STOREDATA;
+ code = cm_SyncOp(dscp, NULL, userp, reqp, 0, sflags);
+ lock_ReleaseMutex(&dscp->mx);
+ if (code)
+ return code;
- /* make the RPC */
- afsFid.Volume = dscp->fid.volume;
- afsFid.Vnode = dscp->fid.vnode;
- afsFid.Unique = dscp->fid.unique;
- do {
- code = cm_Conn(&dscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- code = RXAFS_RemoveFile(connp->callp, &afsFid, namep,
- &newDirStatus, &volSync);
-
- } while (cm_Analyze(connp, userp, reqp, &dscp->fid, &volSync, NULL, NULL, code));
- code = cm_MapRPCError(code, reqp);
+ /* make the RPC */
+ afsFid.Volume = dscp->fid.volume;
+ afsFid.Vnode = dscp->fid.vnode;
+ afsFid.Unique = dscp->fid.unique;
+ do {
+ code = cm_Conn(&dscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
- lock_ObtainMutex(&dscp->mx);
- cm_dnlcRemove(dscp, namep);
- cm_SyncOpDone(dscp, NULL, sflags);
- if (code == 0) cm_MergeStatus(dscp, &newDirStatus, &volSync, userp, 0);
- lock_ReleaseMutex(&dscp->mx);
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_RemoveFile(connp->callp, &afsFid, namep,
+ &newDirStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp, &dscp->fid, &volSync, NULL, NULL, code));
+ code = cm_MapRPCError(code, reqp);
- return code;
+ lock_ObtainMutex(&dscp->mx);
+ cm_dnlcRemove(dscp, namep);
+ cm_SyncOpDone(dscp, NULL, sflags);
+ if (code == 0)
+ cm_MergeStatus(dscp, &newDirStatus, &volSync, userp, 0);
+ lock_ReleaseMutex(&dscp->mx);
+
+ return code;
}
/* called with a locked vnode, and fills in the link info.
*/
long cm_HandleLink(cm_scache_t *linkScp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- cm_buf_t *bufp;
- long temp;
- osi_hyper_t thyper;
-
- lock_AssertMutex(&linkScp->mx);
- if (!linkScp->mountPointStringp) {
- /* read the link data */
- lock_ReleaseMutex(&linkScp->mx);
- thyper.LowPart = thyper.HighPart = 0;
- code = buf_Get(linkScp, &thyper, &bufp);
- lock_ObtainMutex(&linkScp->mx);
- if (code) return code;
- while (1) {
- code = cm_SyncOp(linkScp, bufp, userp, reqp, 0,
- CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_READ);
- if (code) {
- buf_Release(bufp);
- return code;
- }
- if (cm_HaveBuffer(linkScp, bufp, 0)) break;
-
- code = cm_GetBuffer(linkScp, bufp, NULL, userp, reqp);
- if (code) {
- buf_Release(bufp);
- return code;
- }
- } /* while loop to get the data */
-
- /* now if we still have no link read in,
- * copy the data from the buffer */
- if ((temp = linkScp->length.LowPart) >= 1024) {
- buf_Release(bufp);
- return CM_ERROR_TOOBIG;
- }
-
- /* otherwise, it fits; make sure it is still null (could have
- * lost race with someone else referencing this link above),
- * and if so, copy in the data.
- */
- if (linkScp->mountPointStringp == NULL) {
- linkScp->mountPointStringp = malloc(temp+1);
- strncpy(linkScp->mountPointStringp, bufp->datap, temp);
- linkScp->mountPointStringp[temp] = 0; /* null terminate */
- }
- buf_Release(bufp);
- } /* don't have sym link contents cached */
-
- return 0;
-}
+ long code;
+ cm_buf_t *bufp;
+ long temp;
+ osi_hyper_t thyper;
+
+ lock_AssertMutex(&linkScp->mx);
+ if (!linkScp->mountPointStringp) {
+ /* read the link data */
+ lock_ReleaseMutex(&linkScp->mx);
+ thyper.LowPart = thyper.HighPart = 0;
+ code = buf_Get(linkScp, &thyper, &bufp);
+ lock_ObtainMutex(&linkScp->mx);
+ if (code)
+ return code;
+ while (1) {
+ code = cm_SyncOp(linkScp, bufp, userp, reqp, 0,
+ CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_READ);
+ if (code) {
+ buf_Release(bufp);
+ return code;
+ }
+ if (cm_HaveBuffer(linkScp, bufp, 0))
+ break;
+
+ code = cm_GetBuffer(linkScp, bufp, NULL, userp, reqp);
+ if (code) {
+ buf_Release(bufp);
+ return code;
+ }
+ } /* while loop to get the data */
+
+ /* now if we still have no link read in,
+ * copy the data from the buffer */
+ if ((temp = linkScp->length.LowPart) >= 1024) {
+ buf_Release(bufp);
+ return CM_ERROR_TOOBIG;
+ }
+
+ /* otherwise, it fits; make sure it is still null (could have
+ * lost race with someone else referencing this link above),
+ * and if so, copy in the data.
+ */
+ if (linkScp->mountPointStringp == NULL) {
+ linkScp->mountPointStringp = malloc(temp+1);
+ strncpy(linkScp->mountPointStringp, bufp->datap, temp);
+ linkScp->mountPointStringp[temp] = 0; /* null terminate */
+ }
+ buf_Release(bufp);
+ } /* don't have sym link contents cached */
+
+ return 0;
+}
/* called with a held vnode and a path suffix, with the held vnode being a
* symbolic link. Our goal is to generate a new path to interpret, and return
* returned in *newRootScpp, otherwise a null is returned there.
*/
long cm_AssembleLink(cm_scache_t *linkScp, char *pathSuffixp,
- cm_scache_t **newRootScpp, cm_space_t **newSpaceBufferp,
- cm_user_t *userp, cm_req_t *reqp)
+ cm_scache_t **newRootScpp, cm_space_t **newSpaceBufferp,
+ cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- char *linkp;
- cm_space_t *tsp;
+ long code;
+ char *linkp;
+ cm_space_t *tsp;
- lock_ObtainMutex(&linkScp->mx);
- code = cm_HandleLink(linkScp, userp, reqp);
- if (code) goto done;
+ lock_ObtainMutex(&linkScp->mx);
+ code = cm_HandleLink(linkScp, userp, reqp);
+ if (code)
+ goto done;
- /* if we may overflow the buffer, bail out; buffer is signficantly
- * bigger than max path length, so we don't really have to worry about
- * being a little conservative here.
- */
- if (strlen(linkScp->mountPointStringp) + strlen(pathSuffixp) + 2
- >= CM_UTILS_SPACESIZE)
- return CM_ERROR_TOOBIG;
-
- tsp = cm_GetSpace();
- linkp = linkScp->mountPointStringp;
- if (strncmp(linkp, cm_mountRoot, cm_mountRootLen) == 0) {
- if (strlen(linkp) > cm_mountRootLen)
- strcpy(tsp->data, linkp+cm_mountRootLen+1);
- else
- tsp->data[0] = 0;
- *newRootScpp = cm_rootSCachep;
- cm_HoldSCache(cm_rootSCachep);
- } else if (*linkp == '\\' || *linkp == '/') {
- /* formerly, this was considered to be from the AFS root,
- but this seems to create problems. instead, we will just
- reject the link */
-#if 0
- strcpy(tsp->data, linkp+1);
- *newRootScpp = cm_rootSCachep;
- cm_HoldSCache(cm_rootSCachep);
+ /* if we may overflow the buffer, bail out; buffer is signficantly
+ * bigger than max path length, so we don't really have to worry about
+ * being a little conservative here.
+ */
+ if (strlen(linkScp->mountPointStringp) + strlen(pathSuffixp) + 2
+ >= CM_UTILS_SPACESIZE)
+ return CM_ERROR_TOOBIG;
+
+ tsp = cm_GetSpace();
+ linkp = linkScp->mountPointStringp;
+ if (strncmp(linkp, cm_mountRoot, cm_mountRootLen) == 0) {
+ if (strlen(linkp) > cm_mountRootLen)
+ strcpy(tsp->data, linkp+cm_mountRootLen+1);
+ else
+ tsp->data[0] = 0;
+ *newRootScpp = cm_rootSCachep;
+ cm_HoldSCache(cm_rootSCachep);
+ } else if (*linkp == '\\' || *linkp == '/') {
+ /* formerly, this was considered to be from the AFS root,
+ * but this seems to create problems. instead, we will just
+ * reject the link */
+#if 0
+ strcpy(tsp->data, linkp+1);
+ *newRootScpp = cm_rootSCachep;
+ cm_HoldSCache(cm_rootSCachep);
#else
- code = CM_ERROR_NOSUCHPATH;
- goto done;
-#endif
- }
- else {
- /* a relative link */
- strcpy(tsp->data, linkp);
- *newRootScpp = NULL;
- }
- if (pathSuffixp[0] != 0) { /* if suffix string is non-null */
- strcat(tsp->data, "\\");
- strcat(tsp->data, pathSuffixp);
- }
- *newSpaceBufferp = tsp;
- code = 0;
-
-done:
- lock_ReleaseMutex(&linkScp->mx);
- return code;
+ code = CM_ERROR_NOSUCHPATH;
+ goto done;
+#endif
+ }
+ else {
+ /* a relative link */
+ strcpy(tsp->data, linkp);
+ *newRootScpp = NULL;
+ }
+ if (pathSuffixp[0] != 0) { /* if suffix string is non-null */
+ strcat(tsp->data, "\\");
+ strcat(tsp->data, pathSuffixp);
+ }
+ *newSpaceBufferp = tsp;
+ code = 0;
+
+ done:
+ lock_ReleaseMutex(&linkScp->mx);
+ return code;
}
long cm_NameI(cm_scache_t *rootSCachep, char *pathp, long flags,
- cm_user_t *userp, char *tidPathp, cm_req_t *reqp, cm_scache_t **outScpp)
+ cm_user_t *userp, char *tidPathp, cm_req_t *reqp, cm_scache_t **outScpp)
{
- long code;
- char *tp; /* ptr moving through input buffer */
- char tc; /* temp char */
- int haveComponent; /* has new component started? */
- char component[256]; /* this is the new component */
- char *cp; /* component name being assembled */
- cm_scache_t *tscp; /* current location in the hierarchy */
- cm_scache_t *nscp; /* next dude down */
- cm_scache_t *dirScp; /* last dir we searched */
- cm_scache_t *linkScp; /* new root for the symlink we just
- * looked up */
- cm_space_t *psp; /* space for current path, if we've hit
- * any symlinks */
- cm_space_t *tempsp; /* temp vbl */
- char *restp; /* rest of the pathname to interpret */
- int symlinkCount; /* count of # of symlinks traversed */
- int extraFlag; /* avoid chasing mt pts for dir cmd */
- int phase = 1; /* 1 = tidPathp, 2 = pathp */
-
- tp = tidPathp;
- if (tp == NULL) {
- tp = pathp;
- phase = 2;
- }
- if (tp == NULL) {
- tp = "";
- }
- haveComponent = 0;
- psp = NULL;
- tscp = rootSCachep;
- cm_HoldSCache(tscp);
- symlinkCount = 0;
- while (1) {
- tc = *tp++;
-
- /* map Unix slashes into DOS ones so we can interpret Unix
- * symlinks properly
- */
- if (tc == '/') tc = '\\';
+ long code;
+ char *tp; /* ptr moving through input buffer */
+ char tc; /* temp char */
+ int haveComponent; /* has new component started? */
+ char component[256]; /* this is the new component */
+ char *cp; /* component name being assembled */
+ cm_scache_t *tscp; /* current location in the hierarchy */
+ cm_scache_t *nscp; /* next dude down */
+ cm_scache_t *dirScp; /* last dir we searched */
+ cm_scache_t *linkScp; /* new root for the symlink we just
+ * looked up */
+ cm_space_t *psp; /* space for current path, if we've hit
+ * any symlinks */
+ cm_space_t *tempsp; /* temp vbl */
+ char *restp; /* rest of the pathname to interpret */
+ int symlinkCount; /* count of # of symlinks traversed */
+ int extraFlag; /* avoid chasing mt pts for dir cmd */
+ int phase = 1; /* 1 = tidPathp, 2 = pathp */
+
+ tp = tidPathp;
+ if (tp == NULL) {
+ tp = pathp;
+ phase = 2;
+ }
+ if (tp == NULL) {
+ tp = "";
+ }
+ haveComponent = 0;
+ psp = NULL;
+ tscp = rootSCachep;
+ cm_HoldSCache(tscp);
+ symlinkCount = 0;
+ while (1) {
+ tc = *tp++;
+
+ /* map Unix slashes into DOS ones so we can interpret Unix
+ * symlinks properly
+ */
+ if (tc == '/')
+ tc = '\\';
- if (!haveComponent) {
- if (tc == '\\') continue;
+ if (!haveComponent) {
+ if (tc == '\\')
+ continue;
else if (tc == 0) {
- if (phase == 1) {
- phase = 2;
- tp = pathp;
- continue;
- }
+ if (phase == 1) {
+ phase = 2;
+ tp = pathp;
+ continue;
+ }
code = 0;
break;
}
else {
- haveComponent = 1;
+ haveComponent = 1;
cp = component;
*cp++ = tc;
}
- }
- else {
- /* we have a component here */
- if (tc == 0 || tc == '\\') {
- /* end of the component; we're at the last
- * component if tc == 0. However, if the last
- * is a symlink, we have more to do.
- */
- *cp++ = 0; /* add null termination */
- extraFlag = 0;
- if ((flags & CM_FLAG_DIRSEARCH) && tc == 0)
- extraFlag = CM_FLAG_NOMOUNTCHASE;
- code = cm_Lookup(tscp, component,
- flags | extraFlag,
- userp, reqp, &nscp);
+ }
+ else {
+ /* we have a component here */
+ if (tc == 0 || tc == '\\') {
+ /* end of the component; we're at the last
+ * component if tc == 0. However, if the last
+ * is a symlink, we have more to do.
+ */
+ *cp++ = 0; /* add null termination */
+ extraFlag = 0;
+ if ((flags & CM_FLAG_DIRSEARCH) && tc == 0)
+ extraFlag = CM_FLAG_NOMOUNTCHASE;
+ code = cm_Lookup(tscp, component,
+ flags | extraFlag,
+ userp, reqp, &nscp);
- if (code) {
+ if (code) {
+ cm_ReleaseSCache(tscp);
+ if (psp)
+ cm_FreeSpace(psp);
+ return code;
+ }
+ haveComponent = 0; /* component done */
+ dirScp = tscp; /* for some symlinks */
+ tscp = nscp; /* already held */
+ if (tc == 0 && !(flags & CM_FLAG_FOLLOW) && phase == 2) {
+ code = 0;
+ cm_ReleaseSCache(dirScp);
+ break;
+ }
+
+ /* now, if tscp is a symlink, we should follow
+ * it and assemble the path again.
+ */
+ lock_ObtainMutex(&tscp->mx);
+ code = cm_SyncOp(tscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_NEEDCALLBACK);
+ if (code) {
+ lock_ReleaseMutex(&tscp->mx);
+ cm_ReleaseSCache(tscp);
+ cm_ReleaseSCache(dirScp);
+ break;
+ }
+ if (tscp->fileType == CM_SCACHETYPE_SYMLINK) {
+ /* this is a symlink; assemble a new buffer */
+ lock_ReleaseMutex(&tscp->mx);
+ if (symlinkCount++ >= 16) {
cm_ReleaseSCache(tscp);
- if (psp) cm_FreeSpace(psp);
- return code;
- }
- haveComponent = 0; /* component done */
- dirScp = tscp; /* for some symlinks */
- tscp = nscp; /* already held */
- if (tc == 0 && !(flags & CM_FLAG_FOLLOW) && phase == 2) {
- code = 0;
cm_ReleaseSCache(dirScp);
- break;
+ if (psp)
+ cm_FreeSpace(psp);
+ return CM_ERROR_TOOBIG;
}
-
- /* now, if tscp is a symlink, we should follow
- * it and assemble the path again.
- */
- lock_ObtainMutex(&tscp->mx);
- code = cm_SyncOp(tscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_NEEDCALLBACK);
+ if (tc == 0)
+ restp = "";
+ else
+ restp = tp;
+ code = cm_AssembleLink(tscp, restp, &linkScp, &tempsp, userp, reqp);
if (code) {
- lock_ReleaseMutex(&tscp->mx);
+ /* something went wrong */
cm_ReleaseSCache(tscp);
cm_ReleaseSCache(dirScp);
break;
}
- if (tscp->fileType == CM_SCACHETYPE_SYMLINK) {
- /* this is a symlink; assemble a new buffer */
- lock_ReleaseMutex(&tscp->mx);
- if (symlinkCount++ >= 16) {
- cm_ReleaseSCache(tscp);
- cm_ReleaseSCache(dirScp);
- if (psp) cm_FreeSpace(psp);
- return CM_ERROR_TOOBIG;
- }
- if (tc == 0) restp = "";
- else restp = tp;
- code = cm_AssembleLink(tscp, restp, &linkScp, &tempsp, userp, reqp);
- if (code) {
- /* something went wrong */
- cm_ReleaseSCache(tscp);
- cm_ReleaseSCache(dirScp);
- break;
- }
- /* otherwise, tempsp has the new path,
- * and linkScp is the new root from
- * which to interpret that path.
- * Continue with the namei processing,
- * also doing the bookkeeping for the
- * space allocation and tracking the
- * vnode reference counts.
- */
- if (psp) cm_FreeSpace(psp);
- psp = tempsp;
- tp = psp->data;
- cm_ReleaseSCache(tscp);
+ /* otherwise, tempsp has the new path,
+ * and linkScp is the new root from
+ * which to interpret that path.
+ * Continue with the namei processing,
+ * also doing the bookkeeping for the
+ * space allocation and tracking the
+ * vnode reference counts.
+ */
+ if (psp)
+ cm_FreeSpace(psp);
+ psp = tempsp;
+ tp = psp->data;
+ cm_ReleaseSCache(tscp);
tscp = linkScp;
/* already held
- * by AssembleLink */
- /* now, if linkScp is null, that's
- * AssembleLink's way of telling us that
- * the sym link is relative to the dir
- * containing the link. We have a ref
- * to it in dirScp, and we hold it now
- * and reuse it as the new spot in the
- * dir hierarchy.
- */
- if (tscp == NULL) {
- cm_HoldSCache(dirScp);
- tscp = dirScp;
- }
- } /* if we have a sym link */
- else {
- /* not a symlink, we may be done */
- lock_ReleaseMutex(&tscp->mx);
- if (tc == 0) {
- if (phase == 1) {
- phase = 2;
- tp = pathp;
- continue;
- }
- cm_ReleaseSCache(dirScp);
- code = 0;
- break;
+ * by AssembleLink
+ * now, if linkScp is null, that's
+ * AssembleLink's way of telling us that
+ * the sym link is relative to the dir
+ * containing the link. We have a ref
+ * to it in dirScp, and we hold it now
+ * and reuse it as the new spot in the
+ * dir hierarchy.
+ */
+ if (tscp == NULL) {
+ cm_HoldSCache(dirScp);
+ tscp = dirScp;
+ }
+ } /* if we have a sym link */
+ else {
+ /* not a symlink, we may be done */
+ lock_ReleaseMutex(&tscp->mx);
+ if (tc == 0) {
+ if (phase == 1) {
+ phase = 2;
+ tp = pathp;
+ continue;
}
+ cm_ReleaseSCache(dirScp);
+ code = 0;
+ break;
}
- cm_ReleaseSCache(dirScp);
- } /* end of a component */
- else *cp++ = tc;
- } /* we have a component */
- } /* big while loop over all components */
-
- /* already held */
- if (psp) cm_FreeSpace(psp);
- if (code == 0) *outScpp = tscp;
- return code;
+ }
+ cm_ReleaseSCache(dirScp);
+ } /* end of a component */
+ else *cp++ = tc;
+ } /* we have a component */
+ } /* big while loop over all components */
+
+ /* already held */
+ if (psp)
+ cm_FreeSpace(psp);
+ if (code == 0)
+ *outScpp = tscp;
+ return code;
}
/* called with a dir, and a vnode within the dir that happens to be a symlink.
* The input vnode should not be locked when this function is called.
*/
long cm_EvaluateSymLink(cm_scache_t *dscp, cm_scache_t *linkScp,
- cm_scache_t **outScpp, cm_user_t *userp, cm_req_t *reqp)
+ cm_scache_t **outScpp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
- cm_space_t *spacep;
- cm_scache_t *newRootScp;
+ long code;
+ cm_space_t *spacep;
+ cm_scache_t *newRootScp;
- osi_Log1(afsd_logp, "Evaluating symlink vp %x", linkScp);
+ osi_Log1(afsd_logp, "Evaluating symlink vp %x", linkScp);
- code = cm_AssembleLink(linkScp, "", &newRootScp, &spacep, userp, reqp);
- if (code) return code;
-
- /* now, if newRootScp is NULL, we're really being told that the symlink
- * is relative to the current directory (dscp).
- */
- if (newRootScp == NULL) {
- newRootScp = dscp;
- cm_HoldSCache(dscp);
- }
-
- code = cm_NameI(newRootScp, spacep->data,
- CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW | CM_FLAG_DIRSEARCH,
- userp, NULL, reqp, outScpp);
+ code = cm_AssembleLink(linkScp, "", &newRootScp, &spacep, userp, reqp);
+ if (code)
+ return code;
- /* this stuff is allocated no matter what happened on the namei call,
- * so free it */
- cm_FreeSpace(spacep);
- cm_ReleaseSCache(newRootScp);
+ /* now, if newRootScp is NULL, we're really being told that the symlink
+ * is relative to the current directory (dscp).
+ */
+ if (newRootScp == NULL) {
+ newRootScp = dscp;
+ cm_HoldSCache(dscp);
+ }
- return code;
+ code = cm_NameI(newRootScp, spacep->data,
+ CM_FLAG_CASEFOLD | CM_FLAG_FOLLOW | CM_FLAG_DIRSEARCH,
+ userp, NULL, reqp, outScpp);
+
+ /* this stuff is allocated no matter what happened on the namei call,
+ * so free it */
+ cm_FreeSpace(spacep);
+ cm_ReleaseSCache(newRootScp);
+
+ return code;
}
/* make this big enough so that one buffer of dir pages won't overflow. We'll
/* rock for bulk stat calls */
typedef struct cm_bulkStat {
- osi_hyper_t bufOffset; /* only do it for things in this buffer page */
+ osi_hyper_t bufOffset; /* only do it for things in this buffer page */
- /* info for the actual call */
- int counter; /* next free slot */
- AFSFid fids[CM_BULKMAX];
- AFSFetchStatus stats[CM_BULKMAX];
- AFSCallBack callbacks[CM_BULKMAX];
+ /* info for the actual call */
+ int counter; /* next free slot */
+ AFSFid fids[CM_BULKMAX];
+ AFSFetchStatus stats[CM_BULKMAX];
+ AFSCallBack callbacks[CM_BULKMAX];
} cm_bulkStat_t;
/* for a given entry, make sure that it isn't in the stat cache, and then
* processing, to avoid deadlocks.
*/
long cm_TryBulkProc(cm_scache_t *scp, cm_dirEntry_t *dep, void *rockp,
- osi_hyper_t *offp)
+ osi_hyper_t *offp)
{
- osi_hyper_t thyper;
- cm_bulkStat_t *bsp;
- int i;
- cm_scache_t *tscp;
- cm_fid_t tfid;
+ osi_hyper_t thyper;
+ cm_bulkStat_t *bsp;
+ int i;
+ cm_scache_t *tscp;
+ cm_fid_t tfid;
+
+ bsp = rockp;
- bsp = rockp;
+ /* Don't overflow bsp. */
+ if (bsp->counter >= CM_BULKMAX)
+ return CM_ERROR_STOPNOW;
- /* Don't overflow bsp. */
- if (bsp->counter >= CM_BULKMAX)
- return CM_ERROR_STOPNOW;
+ thyper.LowPart = buf_bufferSize;
+ thyper.HighPart = 0;
+ thyper = LargeIntegerAdd(thyper, bsp->bufOffset);
- thyper.LowPart = buf_bufferSize;
- thyper.HighPart = 0;
- thyper = LargeIntegerAdd(thyper, bsp->bufOffset);
-
- /* thyper is now the first byte past the end of the record we're
- * interested in, and bsp->bufOffset is the first byte of the record
- * we're interested in.
- * Skip data in the others.
- * Skip '.' and '..'
- */
- if (LargeIntegerLessThan(*offp, bsp->bufOffset))
- return 0;
- if (LargeIntegerGreaterThanOrEqualTo(*offp, thyper))
- return CM_ERROR_STOPNOW;
- if (strcmp(dep->name, ".") == 0 || strcmp(dep->name, "..") == 0)
- return 0;
-
- tfid.cell = scp->fid.cell;
- tfid.volume = scp->fid.volume;
- tfid.vnode = ntohl(dep->fid.vnode);
- tfid.unique = ntohl(dep->fid.unique);
- tscp = cm_FindSCache(&tfid);
- if (tscp) {
- if (lock_TryMutex(&tscp->mx)) {
- /* we have an entry that we can look at */
- if (cm_HaveCallback(tscp)) {
- /* we have a callback on it. Don't bother
- * fetching this stat entry, since we're happy
- * with the info we have.
- */
- lock_ReleaseMutex(&tscp->mx);
- cm_ReleaseSCache(tscp);
- return 0;
- }
- lock_ReleaseMutex(&tscp->mx);
- } /* got lock */
+ /* thyper is now the first byte past the end of the record we're
+ * interested in, and bsp->bufOffset is the first byte of the record
+ * we're interested in.
+ * Skip data in the others.
+ * Skip '.' and '..'
+ */
+ if (LargeIntegerLessThan(*offp, bsp->bufOffset))
+ return 0;
+ if (LargeIntegerGreaterThanOrEqualTo(*offp, thyper))
+ return CM_ERROR_STOPNOW;
+ if (strcmp(dep->name, ".") == 0 || strcmp(dep->name, "..") == 0)
+ return 0;
+
+ tfid.cell = scp->fid.cell;
+ tfid.volume = scp->fid.volume;
+ tfid.vnode = ntohl(dep->fid.vnode);
+ tfid.unique = ntohl(dep->fid.unique);
+ tscp = cm_FindSCache(&tfid);
+ if (tscp) {
+ if (lock_TryMutex(&tscp->mx)) {
+ /* we have an entry that we can look at */
+ if (cm_HaveCallback(tscp)) {
+ /* we have a callback on it. Don't bother
+ * fetching this stat entry, since we're happy
+ * with the info we have.
+ */
+ lock_ReleaseMutex(&tscp->mx);
cm_ReleaseSCache(tscp);
- } /* found entry */
+ return 0;
+ }
+ lock_ReleaseMutex(&tscp->mx);
+ } /* got lock */
+ cm_ReleaseSCache(tscp);
+ } /* found entry */
#ifdef AFS_FREELANCE_CLIENT
- // yj: if this is a mountpoint under root.afs then we don't want it
- // to be bulkstat-ed, instead, we call getSCache directly and under
- // getSCache, it is handled specially.
- if ( cm_freelanceEnabled &&
+ // yj: if this is a mountpoint under root.afs then we don't want it
+ // to be bulkstat-ed, instead, we call getSCache directly and under
+ // getSCache, it is handled specially.
+ if ( cm_freelanceEnabled &&
tfid.cell==AFS_FAKE_ROOT_CELL_ID &&
tfid.volume==AFS_FAKE_ROOT_VOL_ID &&
!(tfid.vnode==0x1 && tfid.unique==0x1) )
- {
+ {
osi_Log0(afsd_logp, "cm_TryBulkProc Freelance calls cm_SCache on root.afs mountpoint");
- return cm_GetSCache(&tfid, &tscp, NULL, NULL);
- }
+ return cm_GetSCache(&tfid, &tscp, NULL, NULL);
+ }
#endif /* AFS_FREELANCE_CLIENT */
- i = bsp->counter++;
- bsp->fids[i].Volume = scp->fid.volume;
- bsp->fids[i].Vnode = tfid.vnode;
- bsp->fids[i].Unique = tfid.unique;
- return 0;
-}
+ i = bsp->counter++;
+ bsp->fids[i].Volume = scp->fid.volume;
+ bsp->fids[i].Vnode = tfid.vnode;
+ bsp->fids[i].Unique = tfid.unique;
+ return 0;
+}
/* called with a locked scp and a pointer to a buffer. Make bulk stat
* calls on all undeleted files in the page of the directory specified.
*/
void cm_TryBulkStat(cm_scache_t *dscp, osi_hyper_t *offsetp, cm_user_t *userp,
- cm_req_t *reqp)
+ cm_req_t *reqp)
{
- long code;
- cm_bulkStat_t bb; /* this is *BIG*, probably 12K or so;
- * watch for stack problems */
- AFSCBFids fidStruct;
- AFSBulkStats statStruct;
- cm_conn_t *connp;
- AFSCBs callbackStruct;
- long filex;
- AFSVolSync volSync;
- cm_callbackRequest_t cbReq;
- long filesThisCall;
- long i;
- long j;
- cm_scache_t *scp;
- cm_fid_t tfid;
-
- osi_Log1(afsd_logp, "cm_TryBulkStat dir 0x%x", (long) dscp);
-
- /* should be on a buffer boundary */
- osi_assert((offsetp->LowPart & (buf_bufferSize - 1)) == 0);
-
- bb.counter = 0;
- bb.bufOffset = *offsetp;
-
- /* first, assemble the file IDs we need to stat */
- code = cm_ApplyDir(dscp, cm_TryBulkProc, (void *) &bb, offsetp, userp,
- reqp, NULL);
-
- /* if we failed, bail out early */
- if (code && code != CM_ERROR_STOPNOW) return;
-
- /* otherwise, we may have one or more bulk stat's worth of stuff in bb;
- * make the calls to create the entries. Handle AFSCBMAX files at a
- * time.
- */
- filex = 0;
- while(filex < bb.counter) {
- filesThisCall = bb.counter - filex;
- if (filesThisCall > AFSCBMAX) filesThisCall = AFSCBMAX;
-
- fidStruct.AFSCBFids_len = filesThisCall;
- fidStruct.AFSCBFids_val = &bb.fids[filex];
- statStruct.AFSBulkStats_len = filesThisCall;
- statStruct.AFSBulkStats_val = &bb.stats[filex];
- callbackStruct.AFSCBs_len = filesThisCall;
- callbackStruct.AFSCBs_val = &bb.callbacks[filex];
- cm_StartCallbackGrantingCall(NULL, &cbReq);
- osi_Log1(afsd_logp, "CALL BulkStatus, %d entries", filesThisCall);
- do {
- code = cm_Conn(&dscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- code = RXAFS_BulkStatus(connp->callp, &fidStruct,
- &statStruct, &callbackStruct, &volSync);
+ long code;
+ cm_bulkStat_t bb; /* this is *BIG*, probably 12K or so;
+ * watch for stack problems */
+ AFSCBFids fidStruct;
+ AFSBulkStats statStruct;
+ cm_conn_t *connp;
+ AFSCBs callbackStruct;
+ long filex;
+ AFSVolSync volSync;
+ cm_callbackRequest_t cbReq;
+ long filesThisCall;
+ long i;
+ long j;
+ cm_scache_t *scp;
+ cm_fid_t tfid;
- } while (cm_Analyze(connp, userp, reqp, &dscp->fid,
- &volSync, NULL, &cbReq, code));
- code = cm_MapRPCError(code, reqp);
+ osi_Log1(afsd_logp, "cm_TryBulkStat dir 0x%x", (long) dscp);
- osi_Log0(afsd_logp, "CALL BulkStatus DONE");
-
- /* may as well quit on an error, since we're not going to do
- * much better on the next immediate call, either.
- */
- if (code) break;
-
- /* otherwise, we should do the merges */
- for(i = 0; i<filesThisCall; i++) {
- j = filex + i;
- tfid.cell = dscp->fid.cell;
- tfid.volume = bb.fids[j].Volume;
- tfid.vnode = bb.fids[j].Vnode;
- tfid.unique = bb.fids[j].Unique;
- code = cm_GetSCache(&tfid, &scp, userp, reqp);
- if (code != 0) continue;
-
- /* otherwise, if this entry has no callback info,
- * merge in this.
- */
- lock_ObtainMutex(&scp->mx);
- /* now, we have to be extra paranoid on merging in this
- * information, since we didn't use cm_SyncOp before
- * starting the fetch to make sure that no bad races
- * were occurring. Specifically, we need to make sure
- * we don't obliterate any newer information in the
- * vnode than have here.
- *
- * Right now, be pretty conservative: if there's a
- * callback or a pending call, skip it.
- */
- if (scp->cbServerp == NULL
- && !(scp->flags &
- (CM_SCACHEFLAG_FETCHING
- | CM_SCACHEFLAG_STORING
- | CM_SCACHEFLAG_SIZESTORING))) {
- cm_EndCallbackGrantingCall(scp, &cbReq,
- &bb.callbacks[j],
- CM_CALLBACK_MAINTAINCOUNT);
- cm_MergeStatus(scp, &bb.stats[j], &volSync,
- userp, 0);
- }
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- } /* all files in the response */
- /* now tell it to drop the count,
- * after doing the vnode processing above */
+ /* should be on a buffer boundary */
+ osi_assert((offsetp->LowPart & (buf_bufferSize - 1)) == 0);
+
+ bb.counter = 0;
+ bb.bufOffset = *offsetp;
+
+ /* first, assemble the file IDs we need to stat */
+ code = cm_ApplyDir(dscp, cm_TryBulkProc, (void *) &bb, offsetp, userp,
+ reqp, NULL);
+
+ /* if we failed, bail out early */
+ if (code && code != CM_ERROR_STOPNOW) return;
+
+ /* otherwise, we may have one or more bulk stat's worth of stuff in bb;
+ * make the calls to create the entries. Handle AFSCBMAX files at a
+ * time.
+ */
+ filex = 0;
+ while(filex < bb.counter) {
+ filesThisCall = bb.counter - filex;
+ if (filesThisCall > AFSCBMAX) filesThisCall = AFSCBMAX;
+
+ fidStruct.AFSCBFids_len = filesThisCall;
+ fidStruct.AFSCBFids_val = &bb.fids[filex];
+ statStruct.AFSBulkStats_len = filesThisCall;
+ statStruct.AFSBulkStats_val = &bb.stats[filex];
+ callbackStruct.AFSCBs_len = filesThisCall;
+ callbackStruct.AFSCBs_val = &bb.callbacks[filex];
+ cm_StartCallbackGrantingCall(NULL, &cbReq);
+ osi_Log1(afsd_logp, "CALL BulkStatus, %d entries", filesThisCall);
+ do {
+ code = cm_Conn(&dscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_BulkStatus(connp->callp, &fidStruct,
+ &statStruct, &callbackStruct, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp, &dscp->fid,
+ &volSync, NULL, &cbReq, code));
+ code = cm_MapRPCError(code, reqp);
+
+ osi_Log0(afsd_logp, "CALL BulkStatus DONE");
+
+ /* may as well quit on an error, since we're not going to do
+ * much better on the next immediate call, either.
+ */
+ if (code)
+ break;
+
+ /* otherwise, we should do the merges */
+ for(i = 0; i<filesThisCall; i++) {
+ j = filex + i;
+ tfid.cell = dscp->fid.cell;
+ tfid.volume = bb.fids[j].Volume;
+ tfid.vnode = bb.fids[j].Vnode;
+ tfid.unique = bb.fids[j].Unique;
+ code = cm_GetSCache(&tfid, &scp, userp, reqp);
+ if (code != 0)
+ continue;
+
+ /* otherwise, if this entry has no callback info,
+ * merge in this.
+ */
+ lock_ObtainMutex(&scp->mx);
+ /* now, we have to be extra paranoid on merging in this
+ * information, since we didn't use cm_SyncOp before
+ * starting the fetch to make sure that no bad races
+ * were occurring. Specifically, we need to make sure
+ * we don't obliterate any newer information in the
+ * vnode than have here.
+ *
+ * Right now, be pretty conservative: if there's a
+ * callback or a pending call, skip it.
+ */
+ if (scp->cbServerp == NULL
+ && !(scp->flags &
+ (CM_SCACHEFLAG_FETCHING
+ | CM_SCACHEFLAG_STORING
+ | CM_SCACHEFLAG_SIZESTORING))) {
+ cm_EndCallbackGrantingCall(scp, &cbReq,
+ &bb.callbacks[j],
+ CM_CALLBACK_MAINTAINCOUNT);
+ cm_MergeStatus(scp, &bb.stats[j], &volSync,
+ userp, 0);
+ }
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
+ } /* all files in the response */
+ /* now tell it to drop the count,
+ * after doing the vnode processing above */
cm_EndCallbackGrantingCall(NULL, &cbReq, NULL, 0);
-
- filex += filesThisCall;
- } /* while there are still more files to process */
- osi_Log0(afsd_logp, "END cm_TryBulkStat");
-}
+
+ filex += filesThisCall;
+ } /* while there are still more files to process */
+ osi_Log0(afsd_logp, "END cm_TryBulkStat");
+}
void cm_StatusFromAttr(AFSStoreStatus *statusp, cm_scache_t *scp, cm_attr_t *attrp)
{
- long mask;
-
- /* initialize store back mask as inexpensive local variable */
- mask = 0;
- memset(statusp, 0, sizeof(AFSStoreStatus));
-
- /* copy out queued info from scache first, if scp passed in */
- if (scp) {
- if (scp->mask & CM_SCACHEMASK_CLIENTMODTIME) {
- statusp->ClientModTime = scp->clientModTime;
- mask |= AFS_SETMODTIME;
- scp->mask &= ~CM_SCACHEMASK_CLIENTMODTIME;
- }
- }
-
- if (attrp) {
- /* now add in our locally generated request */
- if (attrp->mask & CM_ATTRMASK_CLIENTMODTIME) {
- statusp->ClientModTime = attrp->clientModTime;
- mask |= AFS_SETMODTIME;
- }
- if (attrp->mask & CM_ATTRMASK_UNIXMODEBITS) {
- statusp->UnixModeBits = attrp->unixModeBits;
- mask |= AFS_SETMODE;
- }
- if (attrp->mask & CM_ATTRMASK_OWNER) {
- statusp->Owner = attrp->owner;
- mask |= AFS_SETOWNER;
- }
- if (attrp->mask & CM_ATTRMASK_GROUP) {
- statusp->Group = attrp->group;
- mask |= AFS_SETGROUP;
- }
- }
- statusp->Mask = mask;
-}
+ long mask;
+
+ /* initialize store back mask as inexpensive local variable */
+ mask = 0;
+ memset(statusp, 0, sizeof(AFSStoreStatus));
+
+ /* copy out queued info from scache first, if scp passed in */
+ if (scp) {
+ if (scp->mask & CM_SCACHEMASK_CLIENTMODTIME) {
+ statusp->ClientModTime = scp->clientModTime;
+ mask |= AFS_SETMODTIME;
+ scp->mask &= ~CM_SCACHEMASK_CLIENTMODTIME;
+ }
+ }
+
+ if (attrp) {
+ /* now add in our locally generated request */
+ if (attrp->mask & CM_ATTRMASK_CLIENTMODTIME) {
+ statusp->ClientModTime = attrp->clientModTime;
+ mask |= AFS_SETMODTIME;
+ }
+ if (attrp->mask & CM_ATTRMASK_UNIXMODEBITS) {
+ statusp->UnixModeBits = attrp->unixModeBits;
+ mask |= AFS_SETMODE;
+ }
+ if (attrp->mask & CM_ATTRMASK_OWNER) {
+ statusp->Owner = attrp->owner;
+ mask |= AFS_SETOWNER;
+ }
+ if (attrp->mask & CM_ATTRMASK_GROUP) {
+ statusp->Group = attrp->group;
+ mask |= AFS_SETGROUP;
+ }
+ }
+ statusp->Mask = mask;
+}
/* set the file size, and make sure that all relevant buffers have been
* truncated. Ensure that any partially truncated buffers have been zeroed
* to the end of the buffer.
*/
long cm_SetLength(cm_scache_t *scp, osi_hyper_t *sizep, cm_user_t *userp,
- cm_req_t *reqp)
+ cm_req_t *reqp)
{
- long code;
- int shrinking;
+ long code;
+ int shrinking;
- /* start by locking out buffer creation */
- lock_ObtainWrite(&scp->bufCreateLock);
+ /* start by locking out buffer creation */
+ lock_ObtainWrite(&scp->bufCreateLock);
- /* verify that this is a file, not a dir or a symlink */
- lock_ObtainMutex(&scp->mx);
- code = cm_SyncOp(scp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
- if (code) goto done;
+ /* verify that this is a file, not a dir or a symlink */
+ lock_ObtainMutex(&scp->mx);
+ code = cm_SyncOp(scp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS);
+ if (code)
+ goto done;
- if (scp->fileType != CM_SCACHETYPE_FILE) {
- code = CM_ERROR_ISDIR;
- goto done;
- }
+ if (scp->fileType != CM_SCACHETYPE_FILE) {
+ code = CM_ERROR_ISDIR;
+ goto done;
+ }
-startover:
- if (LargeIntegerLessThan(*sizep, scp->length))
- shrinking = 1;
- else
- shrinking = 0;
+ startover:
+ if (LargeIntegerLessThan(*sizep, scp->length))
+ shrinking = 1;
+ else
+ shrinking = 0;
- lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseMutex(&scp->mx);
- /* can't hold scp->mx lock here, since we may wait for a storeback to
- * finish if the buffer package is cleaning a buffer by storing it to
- * the server.
- */
- if (shrinking)
- buf_Truncate(scp, userp, reqp, sizep);
-
- /* now ensure that file length is short enough, and update truncPos */
- lock_ObtainMutex(&scp->mx);
-
- /* make sure we have a callback (so we have the right value for the
- * length), and wait for it to be safe to do a truncate.
+ /* can't hold scp->mx lock here, since we may wait for a storeback to
+ * finish if the buffer package is cleaning a buffer by storing it to
+ * the server.
+ */
+ if (shrinking)
+ buf_Truncate(scp, userp, reqp, sizep);
+
+ /* now ensure that file length is short enough, and update truncPos */
+ lock_ObtainMutex(&scp->mx);
+
+ /* make sure we have a callback (so we have the right value for the
+ * length), and wait for it to be safe to do a truncate.
+ */
+ code = cm_SyncOp(scp, NULL, userp, reqp, PRSFS_WRITE,
+ CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS
+ | CM_SCACHESYNC_SETSTATUS | CM_SCACHESYNC_SETSIZE);
+ if (code)
+ goto done;
+
+ if (LargeIntegerLessThan(*sizep, scp->length)) {
+ /* a real truncation. If truncPos is not set yet, or is bigger
+ * than where we're truncating the file, set truncPos to this
+ * new value.
*/
- code = cm_SyncOp(scp, NULL, userp, reqp, PRSFS_WRITE,
- CM_SCACHESYNC_NEEDCALLBACK | CM_SCACHESYNC_GETSTATUS
- | CM_SCACHESYNC_SETSTATUS | CM_SCACHESYNC_SETSIZE);
- if (code) goto done;
-
- if (LargeIntegerLessThan(*sizep, scp->length)) {
- /* a real truncation. If truncPos is not set yet, or is bigger
- * than where we're truncating the file, set truncPos to this
- * new value.
- */
- if (!shrinking)
- goto startover;
- if (!(scp->mask & CM_SCACHEMASK_TRUNCPOS)
- || LargeIntegerLessThan(*sizep, scp->length)) {
- /* set trunc pos */
- scp->truncPos = *sizep;
- scp->mask |= CM_SCACHEMASK_TRUNCPOS;
- }
- /* in either case, the new file size has been changed */
- scp->length = *sizep;
- scp->mask |= CM_SCACHEMASK_LENGTH;
+ if (!shrinking)
+ goto startover;
+ if (!(scp->mask & CM_SCACHEMASK_TRUNCPOS)
+ || LargeIntegerLessThan(*sizep, scp->length)) {
+ /* set trunc pos */
+ scp->truncPos = *sizep;
+ scp->mask |= CM_SCACHEMASK_TRUNCPOS;
}
- else if (LargeIntegerGreaterThan(*sizep, scp->length)) {
- /* really extending the file */
- scp->length = *sizep;
- scp->mask |= CM_SCACHEMASK_LENGTH;
- }
+ /* in either case, the new file size has been changed */
+ scp->length = *sizep;
+ scp->mask |= CM_SCACHEMASK_LENGTH;
+ }
+ else if (LargeIntegerGreaterThan(*sizep, scp->length)) {
+ /* really extending the file */
+ scp->length = *sizep;
+ scp->mask |= CM_SCACHEMASK_LENGTH;
+ }
- /* done successfully */
- code = 0;
+ /* done successfully */
+ code = 0;
-done:
- lock_ReleaseMutex(&scp->mx);
- lock_ReleaseWrite(&scp->bufCreateLock);
+ done:
+ lock_ReleaseMutex(&scp->mx);
+ lock_ReleaseWrite(&scp->bufCreateLock);
- return code;
+ return code;
}
/* set the file size or other attributes (but not both at once) */
long cm_SetAttr(cm_scache_t *scp, cm_attr_t *attrp, cm_user_t *userp,
- cm_req_t *reqp)
+ cm_req_t *reqp)
{
- long code;
- int flags;
- AFSFetchStatus afsOutStatus;
- AFSVolSync volSync;
- cm_conn_t *connp;
- AFSFid tfid;
- AFSStoreStatus afsInStatus;
+ long code;
+ int flags;
+ AFSFetchStatus afsOutStatus;
+ AFSVolSync volSync;
+ cm_conn_t *connp;
+ AFSFid tfid;
+ AFSStoreStatus afsInStatus;
- /* handle file length setting */
- if (attrp->mask & CM_ATTRMASK_LENGTH)
- return cm_SetLength(scp, &attrp->length, userp, reqp);
+ /* handle file length setting */
+ if (attrp->mask & CM_ATTRMASK_LENGTH)
+ return cm_SetLength(scp, &attrp->length, userp, reqp);
- flags = CM_SCACHESYNC_STORESTATUS;
+ flags = CM_SCACHESYNC_STORESTATUS;
- lock_ObtainMutex(&scp->mx);
- /* otherwise, we have to make an RPC to get the status */
- code = cm_SyncOp(scp, NULL, userp, reqp, 0, CM_SCACHESYNC_STORESTATUS);
+ lock_ObtainMutex(&scp->mx);
+ /* otherwise, we have to make an RPC to get the status */
+ code = cm_SyncOp(scp, NULL, userp, reqp, 0, CM_SCACHESYNC_STORESTATUS);
- /* make the attr structure */
- cm_StatusFromAttr(&afsInStatus, scp, attrp);
+ /* make the attr structure */
+ cm_StatusFromAttr(&afsInStatus, scp, attrp);
- lock_ReleaseMutex(&scp->mx);
- if (code) return code;
-
- /* now make the RPC */
- osi_Log1(afsd_logp, "CALL StoreStatus vp %x", (long) scp);
- tfid.Volume = scp->fid.volume;
- tfid.Vnode = scp->fid.vnode;
- tfid.Unique = scp->fid.unique;
- do {
- code = cm_Conn(&scp->fid, userp, reqp, &connp);
- if (code) continue;
-
- code = RXAFS_StoreStatus(connp->callp, &tfid,
- &afsInStatus, &afsOutStatus, &volSync);
+ lock_ReleaseMutex(&scp->mx);
+ if (code)
+ return code;
- } while (cm_Analyze(connp, userp, reqp,
- &scp->fid, &volSync, NULL, NULL, code));
- code = cm_MapRPCError(code, reqp);
+ /* now make the RPC */
+ osi_Log1(afsd_logp, "CALL StoreStatus vp %x", (long) scp);
+ tfid.Volume = scp->fid.volume;
+ tfid.Vnode = scp->fid.vnode;
+ tfid.Unique = scp->fid.unique;
+ do {
+ code = cm_Conn(&scp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_StoreStatus(connp->callp, &tfid,
+ &afsInStatus, &afsOutStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp,
+ &scp->fid, &volSync, NULL, NULL, code));
+ code = cm_MapRPCError(code, reqp);
- osi_Log1(afsd_logp, "CALL StoreStatus DONE, code %d", code);
+ osi_Log1(afsd_logp, "CALL StoreStatus DONE, code %d", code);
- lock_ObtainMutex(&scp->mx);
- cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_STORESTATUS);
- if (code == 0)
- cm_MergeStatus(scp, &afsOutStatus, &volSync, userp,
- CM_MERGEFLAG_FORCE);
+ lock_ObtainMutex(&scp->mx);
+ cm_SyncOpDone(scp, NULL, CM_SCACHESYNC_STORESTATUS);
+ if (code == 0)
+ cm_MergeStatus(scp, &afsOutStatus, &volSync, userp,
+ CM_MERGEFLAG_FORCE);
- /* if we're changing the mode bits, discard the ACL cache,
- * since we changed the mode bits.
- */
- if (afsInStatus.Mask & AFS_SETMODE) cm_FreeAllACLEnts(scp);
- lock_ReleaseMutex(&scp->mx);
- return code;
-}
+ /* if we're changing the mode bits, discard the ACL cache,
+ * since we changed the mode bits.
+ */
+ if (afsInStatus.Mask & AFS_SETMODE) cm_FreeAllACLEnts(scp);
+ lock_ReleaseMutex(&scp->mx);
+ return code;
+}
long cm_Create(cm_scache_t *dscp, char *namep, long flags, cm_attr_t *attrp,
- cm_scache_t **scpp, cm_user_t *userp, cm_req_t *reqp)
-{
- cm_conn_t *connp;
- long code;
- AFSFid dirAFSFid;
- cm_callbackRequest_t cbReq;
- AFSFid newAFSFid;
- cm_fid_t newFid;
- cm_scache_t *scp;
- int didEnd;
- AFSStoreStatus inStatus;
- AFSFetchStatus updatedDirStatus;
- AFSFetchStatus newFileStatus;
- AFSCallBack newFileCallback;
- AFSVolSync volSync;
-
- /* can't create names with @sys in them; must expand it manually first.
- * return "invalid request" if they try.
- */
- if (cm_ExpandSysName(namep, NULL, 0)) {
- return CM_ERROR_ATSYS;
- }
+ cm_scache_t **scpp, cm_user_t *userp, cm_req_t *reqp)
+{
+ cm_conn_t *connp;
+ long code;
+ AFSFid dirAFSFid;
+ cm_callbackRequest_t cbReq;
+ AFSFid newAFSFid;
+ cm_fid_t newFid;
+ cm_scache_t *scp;
+ int didEnd;
+ AFSStoreStatus inStatus;
+ AFSFetchStatus updatedDirStatus;
+ AFSFetchStatus newFileStatus;
+ AFSCallBack newFileCallback;
+ AFSVolSync volSync;
- /* before starting the RPC, mark that we're changing the file data, so
- * that someone who does a chmod will know to wait until our call
- * completes.
- */
- lock_ObtainMutex(&dscp->mx);
- code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_StartCallbackGrantingCall(NULL, &cbReq);
- }
- lock_ReleaseMutex(&dscp->mx);
- if (code) {
- return code;
- }
- didEnd = 0;
+ /* can't create names with @sys in them; must expand it manually first.
+ * return "invalid request" if they try.
+ */
+ if (cm_ExpandSysName(namep, NULL, 0, 0)) {
+ return CM_ERROR_ATSYS;
+ }
- cm_StatusFromAttr(&inStatus, NULL, attrp);
+ /* before starting the RPC, mark that we're changing the file data, so
+ * that someone who does a chmod will know to wait until our call
+ * completes.
+ */
+ lock_ObtainMutex(&dscp->mx);
+ code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_StartCallbackGrantingCall(NULL, &cbReq);
+ }
+ lock_ReleaseMutex(&dscp->mx);
+ if (code) {
+ return code;
+ }
+ didEnd = 0;
- /* try the RPC now */
- do {
- code = cm_Conn(&dscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- dirAFSFid.Volume = dscp->fid.volume;
- dirAFSFid.Vnode = dscp->fid.vnode;
- dirAFSFid.Unique = dscp->fid.unique;
- code = RXAFS_CreateFile(connp->callp, &dirAFSFid, namep,
- &inStatus, &newAFSFid, &newFileStatus,
- &updatedDirStatus, &newFileCallback,
- &volSync);
- } while (cm_Analyze(connp, userp, reqp,
- &dscp->fid, &volSync, NULL, &cbReq, code));
- code = cm_MapRPCError(code, reqp);
+ cm_StatusFromAttr(&inStatus, NULL, attrp);
+
+ /* try the RPC now */
+ do {
+ code = cm_Conn(&dscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ dirAFSFid.Volume = dscp->fid.volume;
+ dirAFSFid.Vnode = dscp->fid.vnode;
+ dirAFSFid.Unique = dscp->fid.unique;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_CreateFile(connp->callp, &dirAFSFid, namep,
+ &inStatus, &newAFSFid, &newFileStatus,
+ &updatedDirStatus, &newFileCallback,
+ &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp,
+ &dscp->fid, &volSync, NULL, &cbReq, code));
+ code = cm_MapRPCError(code, reqp);
- lock_ObtainMutex(&dscp->mx);
- cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
- }
- lock_ReleaseMutex(&dscp->mx);
+ lock_ObtainMutex(&dscp->mx);
+ cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
+ }
+ lock_ReleaseMutex(&dscp->mx);
- /* now try to create the file's entry, too, but be careful to
- * make sure that we don't merge in old info. Since we weren't locking
- * out any requests during the file's creation, we may have pretty old
- * info.
- */
- if (code == 0) {
- newFid.cell = dscp->fid.cell;
- newFid.volume = dscp->fid.volume;
- newFid.vnode = newAFSFid.Vnode;
- newFid.unique = newAFSFid.Unique;
- code = cm_GetSCache(&newFid, &scp, userp, reqp);
- if (code == 0) {
- lock_ObtainMutex(&scp->mx);
- if (!cm_HaveCallback(scp)) {
- cm_MergeStatus(scp, &newFileStatus, &volSync,
- userp, 0);
- cm_EndCallbackGrantingCall(scp, &cbReq,
- &newFileCallback, 0);
- didEnd = 1;
- }
- lock_ReleaseMutex(&scp->mx);
- *scpp = scp;
- }
+ /* now try to create the file's entry, too, but be careful to
+ * make sure that we don't merge in old info. Since we weren't locking
+ * out any requests during the file's creation, we may have pretty old
+ * info.
+ */
+ if (code == 0) {
+ newFid.cell = dscp->fid.cell;
+ newFid.volume = dscp->fid.volume;
+ newFid.vnode = newAFSFid.Vnode;
+ newFid.unique = newAFSFid.Unique;
+ code = cm_GetSCache(&newFid, &scp, userp, reqp);
+ if (code == 0) {
+ lock_ObtainMutex(&scp->mx);
+ if (!cm_HaveCallback(scp)) {
+ cm_MergeStatus(scp, &newFileStatus, &volSync,
+ userp, 0);
+ cm_EndCallbackGrantingCall(scp, &cbReq,
+ &newFileCallback, 0);
+ didEnd = 1;
+ }
+ lock_ReleaseMutex(&scp->mx);
+ *scpp = scp;
}
-
- /* make sure we end things properly */
- if (!didEnd)
- cm_EndCallbackGrantingCall(NULL, &cbReq, NULL, 0);
+ }
- return code;
-}
+ /* make sure we end things properly */
+ if (!didEnd)
+ cm_EndCallbackGrantingCall(NULL, &cbReq, NULL, 0);
+
+ return code;
+}
long cm_FSync(cm_scache_t *scp, cm_user_t *userp, cm_req_t *reqp)
{
- long code;
-
- lock_ObtainWrite(&scp->bufCreateLock);
- code = buf_CleanVnode(scp, userp, reqp);
- lock_ReleaseWrite(&scp->bufCreateLock);
- if (code == 0) {
- lock_ObtainMutex(&scp->mx);
- scp->flags &= ~(CM_SCACHEFLAG_OVERQUOTA
- | CM_SCACHEFLAG_OUTOFSPACE);
- if (scp->mask & (CM_SCACHEMASK_TRUNCPOS
- | CM_SCACHEMASK_CLIENTMODTIME
- | CM_SCACHEMASK_LENGTH))
- code = cm_StoreMini(scp, userp, reqp);
- lock_ReleaseMutex(&scp->mx);
- }
- return code;
-}
+ long code;
+
+ lock_ObtainWrite(&scp->bufCreateLock);
+ code = buf_CleanVnode(scp, userp, reqp);
+ lock_ReleaseWrite(&scp->bufCreateLock);
+ if (code == 0) {
+ lock_ObtainMutex(&scp->mx);
+ scp->flags &= ~(CM_SCACHEFLAG_OVERQUOTA
+ | CM_SCACHEFLAG_OUTOFSPACE);
+ if (scp->mask & (CM_SCACHEMASK_TRUNCPOS
+ | CM_SCACHEMASK_CLIENTMODTIME
+ | CM_SCACHEMASK_LENGTH))
+ code = cm_StoreMini(scp, userp, reqp);
+ lock_ReleaseMutex(&scp->mx);
+ }
+ return code;
+}
long cm_MakeDir(cm_scache_t *dscp, char *namep, long flags, cm_attr_t *attrp,
- cm_user_t *userp, cm_req_t *reqp)
+ cm_user_t *userp, cm_req_t *reqp)
{
- cm_conn_t *connp;
- long code;
- AFSFid dirAFSFid;
- cm_callbackRequest_t cbReq;
- AFSFid newAFSFid;
- cm_fid_t newFid;
- cm_scache_t *scp;
- int didEnd;
- AFSStoreStatus inStatus;
- AFSFetchStatus updatedDirStatus;
- AFSFetchStatus newDirStatus;
- AFSCallBack newDirCallback;
- AFSVolSync volSync;
-
- /* can't create names with @sys in them; must expand it manually first.
- * return "invalid request" if they try.
- */
- if (cm_ExpandSysName(namep, NULL, 0)) {
- return CM_ERROR_ATSYS;
- }
+ cm_conn_t *connp;
+ long code;
+ AFSFid dirAFSFid;
+ cm_callbackRequest_t cbReq;
+ AFSFid newAFSFid;
+ cm_fid_t newFid;
+ cm_scache_t *scp;
+ int didEnd;
+ AFSStoreStatus inStatus;
+ AFSFetchStatus updatedDirStatus;
+ AFSFetchStatus newDirStatus;
+ AFSCallBack newDirCallback;
+ AFSVolSync volSync;
- /* before starting the RPC, mark that we're changing the directory
- * data, so that someone who does a chmod on the dir will wait until
- * our call completes.
- */
- lock_ObtainMutex(&dscp->mx);
- code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_StartCallbackGrantingCall(NULL, &cbReq);
- }
- lock_ReleaseMutex(&dscp->mx);
- if (code) {
- return code;
- }
- didEnd = 0;
+ /* can't create names with @sys in them; must expand it manually first.
+ * return "invalid request" if they try.
+ */
+ if (cm_ExpandSysName(namep, NULL, 0, 0)) {
+ return CM_ERROR_ATSYS;
+ }
- cm_StatusFromAttr(&inStatus, NULL, attrp);
+ /* before starting the RPC, mark that we're changing the directory
+ * data, so that someone who does a chmod on the dir will wait until
+ * our call completes.
+ */
+ lock_ObtainMutex(&dscp->mx);
+ code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_StartCallbackGrantingCall(NULL, &cbReq);
+ }
+ lock_ReleaseMutex(&dscp->mx);
+ if (code) {
+ return code;
+ }
+ didEnd = 0;
- /* try the RPC now */
- do {
- code = cm_Conn(&dscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- dirAFSFid.Volume = dscp->fid.volume;
- dirAFSFid.Vnode = dscp->fid.vnode;
- dirAFSFid.Unique = dscp->fid.unique;
- code = RXAFS_MakeDir(connp->callp, &dirAFSFid, namep,
- &inStatus, &newAFSFid, &newDirStatus,
- &updatedDirStatus, &newDirCallback,
- &volSync);
- } while (cm_Analyze(connp, userp, reqp,
- &dscp->fid, &volSync, NULL, &cbReq, code));
- code = cm_MapRPCError(code, reqp);
+ cm_StatusFromAttr(&inStatus, NULL, attrp);
+
+ /* try the RPC now */
+ do {
+ code = cm_Conn(&dscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ dirAFSFid.Volume = dscp->fid.volume;
+ dirAFSFid.Vnode = dscp->fid.vnode;
+ dirAFSFid.Unique = dscp->fid.unique;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_MakeDir(connp->callp, &dirAFSFid, namep,
+ &inStatus, &newAFSFid, &newDirStatus,
+ &updatedDirStatus, &newDirCallback,
+ &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp,
+ &dscp->fid, &volSync, NULL, &cbReq, code));
+ code = cm_MapRPCError(code, reqp);
- lock_ObtainMutex(&dscp->mx);
- cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
- }
- lock_ReleaseMutex(&dscp->mx);
+ lock_ObtainMutex(&dscp->mx);
+ cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
+ }
+ lock_ReleaseMutex(&dscp->mx);
- /* now try to create the new dir's entry, too, but be careful to
- * make sure that we don't merge in old info. Since we weren't locking
- * out any requests during the file's creation, we may have pretty old
- * info.
- */
- if (code == 0) {
- newFid.cell = dscp->fid.cell;
- newFid.volume = dscp->fid.volume;
- newFid.vnode = newAFSFid.Vnode;
- newFid.unique = newAFSFid.Unique;
- code = cm_GetSCache(&newFid, &scp, userp, reqp);
- if (code == 0) {
- lock_ObtainMutex(&scp->mx);
- if (!cm_HaveCallback(scp)) {
- cm_MergeStatus(scp, &newDirStatus, &volSync,
- userp, 0);
- cm_EndCallbackGrantingCall(scp, &cbReq,
- &newDirCallback, 0);
- didEnd = 1;
- }
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- }
+ /* now try to create the new dir's entry, too, but be careful to
+ * make sure that we don't merge in old info. Since we weren't locking
+ * out any requests during the file's creation, we may have pretty old
+ * info.
+ */
+ if (code == 0) {
+ newFid.cell = dscp->fid.cell;
+ newFid.volume = dscp->fid.volume;
+ newFid.vnode = newAFSFid.Vnode;
+ newFid.unique = newAFSFid.Unique;
+ code = cm_GetSCache(&newFid, &scp, userp, reqp);
+ if (code == 0) {
+ lock_ObtainMutex(&scp->mx);
+ if (!cm_HaveCallback(scp)) {
+ cm_MergeStatus(scp, &newDirStatus, &volSync,
+ userp, 0);
+ cm_EndCallbackGrantingCall(scp, &cbReq,
+ &newDirCallback, 0);
+ didEnd = 1;
+ }
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
}
-
- /* make sure we end things properly */
- if (!didEnd)
- cm_EndCallbackGrantingCall(NULL, &cbReq, NULL, 0);
-
- /* and return error code */
- return code;
-}
+ }
+
+ /* make sure we end things properly */
+ if (!didEnd)
+ cm_EndCallbackGrantingCall(NULL, &cbReq, NULL, 0);
+
+ /* and return error code */
+ return code;
+}
long cm_Link(cm_scache_t *dscp, char *namep, cm_scache_t *sscp, long flags,
cm_user_t *userp, cm_req_t *reqp)
existingAFSFid.Vnode = sscp->fid.vnode;
existingAFSFid.Unique = sscp->fid.unique;
+ lock_ObtainMutex(&connp->mx);
code = RXAFS_Link(connp->callp, &dirAFSFid, namep, &existingAFSFid,
&newLinkStatus, &updatedDirStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
osi_Log1(smb_logp," RXAFS_Link returns %d", code);
} while (cm_Analyze(connp, userp, reqp,
}
long cm_SymLink(cm_scache_t *dscp, char *namep, char *contentsp, long flags,
- cm_attr_t *attrp, cm_user_t *userp, cm_req_t *reqp)
+ cm_attr_t *attrp, cm_user_t *userp, cm_req_t *reqp)
{
- cm_conn_t *connp;
- long code;
- AFSFid dirAFSFid;
- AFSFid newAFSFid;
- cm_fid_t newFid;
- cm_scache_t *scp;
- AFSStoreStatus inStatus;
- AFSFetchStatus updatedDirStatus;
- AFSFetchStatus newLinkStatus;
- AFSVolSync volSync;
-
- /* before starting the RPC, mark that we're changing the directory data,
- * so that someone who does a chmod on the dir will wait until our
- * call completes.
- */
- lock_ObtainMutex(&dscp->mx);
- code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&dscp->mx);
- if (code) {
- return code;
- }
+ cm_conn_t *connp;
+ long code;
+ AFSFid dirAFSFid;
+ AFSFid newAFSFid;
+ cm_fid_t newFid;
+ cm_scache_t *scp;
+ AFSStoreStatus inStatus;
+ AFSFetchStatus updatedDirStatus;
+ AFSFetchStatus newLinkStatus;
+ AFSVolSync volSync;
- cm_StatusFromAttr(&inStatus, NULL, attrp);
+ /* before starting the RPC, mark that we're changing the directory data,
+ * so that someone who does a chmod on the dir will wait until our
+ * call completes.
+ */
+ lock_ObtainMutex(&dscp->mx);
+ code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&dscp->mx);
+ if (code) {
+ return code;
+ }
- /* try the RPC now */
- do {
- code = cm_Conn(&dscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- dirAFSFid.Volume = dscp->fid.volume;
- dirAFSFid.Vnode = dscp->fid.vnode;
- dirAFSFid.Unique = dscp->fid.unique;
- code = RXAFS_Symlink(connp->callp, &dirAFSFid, namep, contentsp,
- &inStatus, &newAFSFid, &newLinkStatus,
- &updatedDirStatus, &volSync);
- } while (cm_Analyze(connp, userp, reqp,
- &dscp->fid, &volSync, NULL, NULL, code));
- code = cm_MapRPCError(code, reqp);
+ cm_StatusFromAttr(&inStatus, NULL, attrp);
+
+ /* try the RPC now */
+ do {
+ code = cm_Conn(&dscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ dirAFSFid.Volume = dscp->fid.volume;
+ dirAFSFid.Vnode = dscp->fid.vnode;
+ dirAFSFid.Unique = dscp->fid.unique;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_Symlink(connp->callp, &dirAFSFid, namep, contentsp,
+ &inStatus, &newAFSFid, &newLinkStatus,
+ &updatedDirStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp,
+ &dscp->fid, &volSync, NULL, NULL, code));
+ code = cm_MapRPCError(code, reqp);
- lock_ObtainMutex(&dscp->mx);
- cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
- }
- lock_ReleaseMutex(&dscp->mx);
+ lock_ObtainMutex(&dscp->mx);
+ cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
+ }
+ lock_ReleaseMutex(&dscp->mx);
- /* now try to create the new dir's entry, too, but be careful to
- * make sure that we don't merge in old info. Since we weren't locking
- * out any requests during the file's creation, we may have pretty old
- * info.
- */
- if (code == 0) {
- newFid.cell = dscp->fid.cell;
- newFid.volume = dscp->fid.volume;
- newFid.vnode = newAFSFid.Vnode;
- newFid.unique = newAFSFid.Unique;
- code = cm_GetSCache(&newFid, &scp, userp, reqp);
- if (code == 0) {
- lock_ObtainMutex(&scp->mx);
- if (!cm_HaveCallback(scp)) {
- cm_MergeStatus(scp, &newLinkStatus, &volSync,
- userp, 0);
- }
- lock_ReleaseMutex(&scp->mx);
- cm_ReleaseSCache(scp);
- }
+ /* now try to create the new dir's entry, too, but be careful to
+ * make sure that we don't merge in old info. Since we weren't locking
+ * out any requests during the file's creation, we may have pretty old
+ * info.
+ */
+ if (code == 0) {
+ newFid.cell = dscp->fid.cell;
+ newFid.volume = dscp->fid.volume;
+ newFid.vnode = newAFSFid.Vnode;
+ newFid.unique = newAFSFid.Unique;
+ code = cm_GetSCache(&newFid, &scp, userp, reqp);
+ if (code == 0) {
+ lock_ObtainMutex(&scp->mx);
+ if (!cm_HaveCallback(scp)) {
+ cm_MergeStatus(scp, &newLinkStatus, &volSync,
+ userp, 0);
+ }
+ lock_ReleaseMutex(&scp->mx);
+ cm_ReleaseSCache(scp);
}
+ }
- /* and return error code */
- return code;
+ /* and return error code */
+ return code;
}
long cm_RemoveDir(cm_scache_t *dscp, char *namep, cm_user_t *userp,
- cm_req_t *reqp)
+ cm_req_t *reqp)
{
- cm_conn_t *connp;
- long code;
- AFSFid dirAFSFid;
- int didEnd;
- AFSFetchStatus updatedDirStatus;
- AFSVolSync volSync;
-
- /* before starting the RPC, mark that we're changing the directory data,
- * so that someone who does a chmod on the dir will wait until our
- * call completes.
- */
- lock_ObtainMutex(&dscp->mx);
- code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&dscp->mx);
- if (code) {
- return code;
- }
- didEnd = 0;
+ cm_conn_t *connp;
+ long code;
+ AFSFid dirAFSFid;
+ int didEnd;
+ AFSFetchStatus updatedDirStatus;
+ AFSVolSync volSync;
- /* try the RPC now */
- do {
- code = cm_Conn(&dscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- dirAFSFid.Volume = dscp->fid.volume;
- dirAFSFid.Vnode = dscp->fid.vnode;
- dirAFSFid.Unique = dscp->fid.unique;
- code = RXAFS_RemoveDir(connp->callp, &dirAFSFid, namep,
- &updatedDirStatus, &volSync);
- } while (cm_Analyze(connp, userp, reqp,
- &dscp->fid, &volSync, NULL, NULL, code));
- code = cm_MapRPCErrorRmdir(code, reqp);
+ /* before starting the RPC, mark that we're changing the directory data,
+ * so that someone who does a chmod on the dir will wait until our
+ * call completes.
+ */
+ lock_ObtainMutex(&dscp->mx);
+ code = cm_SyncOp(dscp, NULL, userp, reqp, 0, CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&dscp->mx);
+ if (code) {
+ return code;
+ }
+ didEnd = 0;
+
+ /* try the RPC now */
+ do {
+ code = cm_Conn(&dscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ dirAFSFid.Volume = dscp->fid.volume;
+ dirAFSFid.Vnode = dscp->fid.vnode;
+ dirAFSFid.Unique = dscp->fid.unique;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_RemoveDir(connp->callp, &dirAFSFid, namep,
+ &updatedDirStatus, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp,
+ &dscp->fid, &volSync, NULL, NULL, code));
+ code = cm_MapRPCErrorRmdir(code, reqp);
- lock_ObtainMutex(&dscp->mx);
- cm_dnlcRemove(dscp, namep);
- cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
- }
- lock_ReleaseMutex(&dscp->mx);
+ lock_ObtainMutex(&dscp->mx);
+ cm_dnlcRemove(dscp, namep);
+ cm_SyncOpDone(dscp, NULL, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_MergeStatus(dscp, &updatedDirStatus, &volSync, userp, 0);
+ }
+ lock_ReleaseMutex(&dscp->mx);
- /* and return error code */
- return code;
+ /* and return error code */
+ return code;
}
long cm_Open(cm_scache_t *scp, int type, cm_user_t *userp)
{
- /* grab mutex on contents */
- lock_ObtainMutex(&scp->mx);
-
- /* reset the prefetch info */
- scp->prefetch.base.LowPart = 0; /* base */
- scp->prefetch.base.HighPart = 0;
- scp->prefetch.end.LowPart = 0; /* and end */
- scp->prefetch.end.HighPart = 0;
-
- /* release mutex on contents */
- lock_ReleaseMutex(&scp->mx);
-
- /* we're done */
- return 0;
-}
+ /* grab mutex on contents */
+ lock_ObtainMutex(&scp->mx);
+
+ /* reset the prefetch info */
+ scp->prefetch.base.LowPart = 0; /* base */
+ scp->prefetch.base.HighPart = 0;
+ scp->prefetch.end.LowPart = 0; /* and end */
+ scp->prefetch.end.HighPart = 0;
+
+ /* release mutex on contents */
+ lock_ReleaseMutex(&scp->mx);
+
+ /* we're done */
+ return 0;
+}
long cm_Rename(cm_scache_t *oldDscp, char *oldNamep, cm_scache_t *newDscp,
- char *newNamep, cm_user_t *userp, cm_req_t *reqp)
+ char *newNamep, cm_user_t *userp, cm_req_t *reqp)
{
- cm_conn_t *connp;
- long code;
- AFSFid oldDirAFSFid;
- AFSFid newDirAFSFid;
- int didEnd;
- AFSFetchStatus updatedOldDirStatus;
- AFSFetchStatus updatedNewDirStatus;
- AFSVolSync volSync;
- int oneDir;
-
- /* before starting the RPC, mark that we're changing the directory data,
- * so that someone who does a chmod on the dir will wait until our call
- * completes. We do this in vnode order so that we don't deadlock,
- * which makes the code a little verbose.
+ cm_conn_t *connp;
+ long code;
+ AFSFid oldDirAFSFid;
+ AFSFid newDirAFSFid;
+ int didEnd;
+ AFSFetchStatus updatedOldDirStatus;
+ AFSFetchStatus updatedNewDirStatus;
+ AFSVolSync volSync;
+ int oneDir;
+
+ /* before starting the RPC, mark that we're changing the directory data,
+ * so that someone who does a chmod on the dir will wait until our call
+ * completes. We do this in vnode order so that we don't deadlock,
+ * which makes the code a little verbose.
+ */
+ if (oldDscp == newDscp) {
+ /* check for identical names */
+ if (strcmp(oldNamep, newNamep) == 0)
+ return CM_ERROR_RENAME_IDENTICAL;
+
+ oneDir = 1;
+ lock_ObtainMutex(&oldDscp->mx);
+ cm_dnlcRemove(oldDscp, oldNamep);
+ cm_dnlcRemove(oldDscp, newNamep);
+ code = cm_SyncOp(oldDscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&oldDscp->mx);
+ }
+ else {
+ /* two distinct dir vnodes */
+ oneDir = 0;
+ if (oldDscp->fid.cell != newDscp->fid.cell ||
+ oldDscp->fid.volume != newDscp->fid.volume)
+ return CM_ERROR_CROSSDEVLINK;
+
+ /* shouldn't happen that we have distinct vnodes for two
+ * different files, but could due to deliberate attack, or
+ * stale info. Avoid deadlocks and quit now.
*/
- if (oldDscp == newDscp) {
- /* check for identical names */
- if (strcmp(oldNamep, newNamep) == 0)
- return CM_ERROR_RENAME_IDENTICAL;
-
- oneDir = 1;
- lock_ObtainMutex(&oldDscp->mx);
- cm_dnlcRemove(oldDscp, oldNamep);
- cm_dnlcRemove(oldDscp, newNamep);
- code = cm_SyncOp(oldDscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&oldDscp->mx);
+ if (oldDscp->fid.vnode == newDscp->fid.vnode)
+ return CM_ERROR_CROSSDEVLINK;
+
+ if (oldDscp->fid.vnode < newDscp->fid.vnode) {
+ lock_ObtainMutex(&oldDscp->mx);
+ cm_dnlcRemove(oldDscp, oldNamep);
+ code = cm_SyncOp(oldDscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&oldDscp->mx);
+ if (code == 0) {
+ lock_ObtainMutex(&newDscp->mx);
+ cm_dnlcRemove(newDscp, newNamep);
+ code = cm_SyncOp(newDscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&newDscp->mx);
+ if (code) {
+ /* cleanup first one */
+ cm_SyncOpDone(oldDscp, NULL,
+ CM_SCACHESYNC_STOREDATA);
+ }
+ }
}
else {
- /* two distinct dir vnodes */
- oneDir = 0;
- if (oldDscp->fid.cell != newDscp->fid.cell ||
- oldDscp->fid.volume != newDscp->fid.volume)
- return CM_ERROR_CROSSDEVLINK;
-
- /* shouldn't happen that we have distinct vnodes for two
- * different files, but could due to deliberate attack, or
- * stale info. Avoid deadlocks and quit now.
- */
- if (oldDscp->fid.vnode == newDscp->fid.vnode)
- return CM_ERROR_CROSSDEVLINK;
-
- if (oldDscp->fid.vnode < newDscp->fid.vnode) {
- lock_ObtainMutex(&oldDscp->mx);
- cm_dnlcRemove(oldDscp, oldNamep);
- code = cm_SyncOp(oldDscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&oldDscp->mx);
- if (code == 0) {
- lock_ObtainMutex(&newDscp->mx);
- cm_dnlcRemove(newDscp, newNamep);
- code = cm_SyncOp(newDscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&newDscp->mx);
- if (code) {
- /* cleanup first one */
- cm_SyncOpDone(oldDscp, NULL,
- CM_SCACHESYNC_STOREDATA);
- }
- }
- }
- else {
- /* lock the new vnode entry first */
- lock_ObtainMutex(&newDscp->mx);
- cm_dnlcRemove(newDscp, newNamep);
- code = cm_SyncOp(newDscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&newDscp->mx);
- if (code == 0) {
- lock_ObtainMutex(&oldDscp->mx);
- cm_dnlcRemove(oldDscp, oldNamep);
- code = cm_SyncOp(oldDscp, NULL, userp, reqp, 0,
- CM_SCACHESYNC_STOREDATA);
- lock_ReleaseMutex(&oldDscp->mx);
- if (code) {
- /* cleanup first one */
- cm_SyncOpDone(newDscp, NULL,
- CM_SCACHESYNC_STOREDATA);
- }
- }
- }
- } /* two distinct vnodes */
+ /* lock the new vnode entry first */
+ lock_ObtainMutex(&newDscp->mx);
+ cm_dnlcRemove(newDscp, newNamep);
+ code = cm_SyncOp(newDscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&newDscp->mx);
+ if (code == 0) {
+ lock_ObtainMutex(&oldDscp->mx);
+ cm_dnlcRemove(oldDscp, oldNamep);
+ code = cm_SyncOp(oldDscp, NULL, userp, reqp, 0,
+ CM_SCACHESYNC_STOREDATA);
+ lock_ReleaseMutex(&oldDscp->mx);
+ if (code) {
+ /* cleanup first one */
+ cm_SyncOpDone(newDscp, NULL,
+ CM_SCACHESYNC_STOREDATA);
+ }
+ }
+ }
+ } /* two distinct vnodes */
- if (code) {
- return code;
- }
- didEnd = 0;
+ if (code) {
+ return code;
+ }
+ didEnd = 0;
- /* try the RPC now */
- do {
- code = cm_Conn(&oldDscp->fid, userp, reqp, &connp);
- if (code) continue;
-
- oldDirAFSFid.Volume = oldDscp->fid.volume;
- oldDirAFSFid.Vnode = oldDscp->fid.vnode;
- oldDirAFSFid.Unique = oldDscp->fid.unique;
- newDirAFSFid.Volume = newDscp->fid.volume;
- newDirAFSFid.Vnode = newDscp->fid.vnode;
- newDirAFSFid.Unique = newDscp->fid.unique;
- code = RXAFS_Rename(connp->callp, &oldDirAFSFid, oldNamep,
- &newDirAFSFid, newNamep,
- &updatedOldDirStatus, &updatedNewDirStatus,
- &volSync);
- } while (cm_Analyze(connp, userp, reqp, &oldDscp->fid,
- &volSync, NULL, NULL, code));
- code = cm_MapRPCError(code, reqp);
+ /* try the RPC now */
+ do {
+ code = cm_Conn(&oldDscp->fid, userp, reqp, &connp);
+ if (code)
+ continue;
+
+ oldDirAFSFid.Volume = oldDscp->fid.volume;
+ oldDirAFSFid.Vnode = oldDscp->fid.vnode;
+ oldDirAFSFid.Unique = oldDscp->fid.unique;
+ newDirAFSFid.Volume = newDscp->fid.volume;
+ newDirAFSFid.Vnode = newDscp->fid.vnode;
+ newDirAFSFid.Unique = newDscp->fid.unique;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_Rename(connp->callp, &oldDirAFSFid, oldNamep,
+ &newDirAFSFid, newNamep,
+ &updatedOldDirStatus, &updatedNewDirStatus,
+ &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp, &oldDscp->fid,
+ &volSync, NULL, NULL, code));
+ code = cm_MapRPCError(code, reqp);
- /* update the individual stat cache entries for the directories */
- lock_ObtainMutex(&oldDscp->mx);
- cm_SyncOpDone(oldDscp, NULL, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_MergeStatus(oldDscp, &updatedOldDirStatus, &volSync,
- userp, 0);
- }
- lock_ReleaseMutex(&oldDscp->mx);
+ /* update the individual stat cache entries for the directories */
+ lock_ObtainMutex(&oldDscp->mx);
+ cm_SyncOpDone(oldDscp, NULL, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_MergeStatus(oldDscp, &updatedOldDirStatus, &volSync,
+ userp, 0);
+ }
+ lock_ReleaseMutex(&oldDscp->mx);
- /* and update it for the new one, too, if necessary */
- if (!oneDir) {
- lock_ObtainMutex(&newDscp->mx);
- cm_SyncOpDone(newDscp, NULL, CM_SCACHESYNC_STOREDATA);
- if (code == 0) {
- cm_MergeStatus(newDscp, &updatedNewDirStatus, &volSync,
- userp, 0);
- }
- lock_ReleaseMutex(&newDscp->mx);
- }
-
- /* and return error code */
- return code;
+ /* and update it for the new one, too, if necessary */
+ if (!oneDir) {
+ lock_ObtainMutex(&newDscp->mx);
+ cm_SyncOpDone(newDscp, NULL, CM_SCACHESYNC_STOREDATA);
+ if (code == 0) {
+ cm_MergeStatus(newDscp, &updatedNewDirStatus, &volSync,
+ userp, 0);
+ }
+ lock_ReleaseMutex(&newDscp->mx);
+ }
+
+ /* and return error code */
+ return code;
}
long cm_Lock(cm_scache_t *scp, unsigned char LockType,
- LARGE_INTEGER LOffset, LARGE_INTEGER LLength,
- u_long Timeout, cm_user_t *userp, cm_req_t *reqp,
- void **lockpp)
+ LARGE_INTEGER LOffset, LARGE_INTEGER LLength,
+ u_long Timeout, cm_user_t *userp, cm_req_t *reqp,
+ void **lockpp)
{
- long code;
- int Which = ((LockType & 0x1) ? LockRead : LockWrite);
- AFSFid tfid;
- AFSVolSync volSync;
- cm_conn_t *connp;
- cm_file_lock_t *fileLock;
- osi_queue_t *q;
- int found = 0;
-
- /* Look for a conflict. Also, if we are asking for a shared lock,
- * look for another shared lock, so we don't have to do an RPC.
- */
- q = scp->fileLocks;
- while (q) {
- fileLock = (cm_file_lock_t *)
- ((char *) q - offsetof(cm_file_lock_t, fileq));
- if ((fileLock->flags &
- (CM_FILELOCK_FLAG_INVALID | CM_FILELOCK_FLAG_WAITING))
- == 0) {
- if ((LockType & 0x1) == 0
- || (fileLock->LockType & 0x1) == 0)
- return CM_ERROR_WOULDBLOCK;
- found = 1;
- }
- q = osi_QNext(q);
- }
-
- if (found)
- code = 0;
- else {
- tfid.Volume = scp->fid.volume;
- tfid.Vnode = scp->fid.vnode;
- tfid.Unique = scp->fid.unique;
- lock_ReleaseMutex(&scp->mx);
- do {
- code = cm_Conn(&scp->fid, userp, reqp, &connp);
- if (code) break;
- code = RXAFS_SetLock(connp->callp, &tfid, Which,
- &volSync);
- } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync,
- NULL, NULL, code));
- lock_ObtainMutex(&scp->mx);
- code = cm_MapRPCError(code, reqp);
- }
-
- if (code == 0 || Timeout != 0) {
- fileLock = malloc(sizeof(cm_file_lock_t));
- fileLock->LockType = LockType;
- cm_HoldUser(userp);
- fileLock->userp = userp;
- fileLock->fid = scp->fid;
- fileLock->LOffset = LOffset;
- fileLock->LLength = LLength;
- fileLock->flags = (code == 0 ? 0 : CM_FILELOCK_FLAG_WAITING);
- osi_QAdd(&scp->fileLocks, &fileLock->fileq);
- lock_ObtainWrite(&cm_scacheLock);
- osi_QAdd(&cm_allFileLocks, &fileLock->q);
- lock_ReleaseWrite(&cm_scacheLock);
- if (code != 0) *lockpp = fileLock;
- }
- return code;
+ long code;
+ int Which = ((LockType & 0x1) ? LockRead : LockWrite);
+ AFSFid tfid;
+ AFSVolSync volSync;
+ cm_conn_t *connp;
+ cm_file_lock_t *fileLock;
+ osi_queue_t *q;
+ int found = 0;
+
+ /* Look for a conflict. Also, if we are asking for a shared lock,
+ * look for another shared lock, so we don't have to do an RPC.
+ */
+ q = scp->fileLocks;
+ while (q) {
+ fileLock = (cm_file_lock_t *)
+ ((char *) q - offsetof(cm_file_lock_t, fileq));
+ if ((fileLock->flags &
+ (CM_FILELOCK_FLAG_INVALID | CM_FILELOCK_FLAG_WAITING))
+ == 0) {
+ if ((LockType & 0x1) == 0
+ || (fileLock->LockType & 0x1) == 0)
+ return CM_ERROR_WOULDBLOCK;
+ found = 1;
+ }
+ q = osi_QNext(q);
+ }
+
+ if (found)
+ code = 0;
+ else {
+ tfid.Volume = scp->fid.volume;
+ tfid.Vnode = scp->fid.vnode;
+ tfid.Unique = scp->fid.unique;
+ lock_ReleaseMutex(&scp->mx);
+ do {
+ code = cm_Conn(&scp->fid, userp, reqp, &connp);
+ if (code)
+ break;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_SetLock(connp->callp, &tfid, Which,
+ &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync,
+ NULL, NULL, code));
+ lock_ObtainMutex(&scp->mx);
+ code = cm_MapRPCError(code, reqp);
+ }
+
+ if (code == 0 || Timeout != 0) {
+ fileLock = malloc(sizeof(cm_file_lock_t));
+ fileLock->LockType = LockType;
+ cm_HoldUser(userp);
+ fileLock->userp = userp;
+ fileLock->fid = scp->fid;
+ fileLock->LOffset = LOffset;
+ fileLock->LLength = LLength;
+ fileLock->flags = (code == 0 ? 0 : CM_FILELOCK_FLAG_WAITING);
+ osi_QAdd(&scp->fileLocks, &fileLock->fileq);
+ lock_ObtainWrite(&cm_scacheLock);
+ osi_QAdd(&cm_allFileLocks, &fileLock->q);
+ lock_ReleaseWrite(&cm_scacheLock);
+ if (code != 0)
+ *lockpp = fileLock;
+ }
+ return code;
}
long cm_Unlock(cm_scache_t *scp, unsigned char LockType,
- LARGE_INTEGER LOffset, LARGE_INTEGER LLength,
- cm_user_t *userp, cm_req_t *reqp)
+ LARGE_INTEGER LOffset, LARGE_INTEGER LLength,
+ cm_user_t *userp, cm_req_t *reqp)
{
- long code = 0;
- int Which = ((LockType & 0x1) ? LockRead : LockWrite);
- AFSFid tfid;
- AFSVolSync volSync;
- cm_conn_t *connp;
- cm_file_lock_t *fileLock, *ourLock;
- osi_queue_t *q, *qq;
- int anotherReader = 0;
- int smallLock = 0;
- int found = 0;
-
- if (LargeIntegerLessThan(LLength, scp->length))
- smallLock = 1;
-
- /* Look for our own lock on the list, so as to remove it.
- * Also, determine if we're the last reader; if not, avoid an RPC.
- */
- q = scp->fileLocks;
- while (q) {
- fileLock = (cm_file_lock_t *)
+ long code = 0;
+ int Which = ((LockType & 0x1) ? LockRead : LockWrite);
+ AFSFid tfid;
+ AFSVolSync volSync;
+ cm_conn_t *connp;
+ cm_file_lock_t *fileLock, *ourLock;
+ osi_queue_t *q, *qq;
+ int anotherReader = 0;
+ int smallLock = 0;
+ int found = 0;
+
+ if (LargeIntegerLessThan(LLength, scp->length))
+ smallLock = 1;
+
+ /* Look for our own lock on the list, so as to remove it.
+ * Also, determine if we're the last reader; if not, avoid an RPC.
+ */
+ q = scp->fileLocks;
+ while (q) {
+ fileLock = (cm_file_lock_t *)
((char *) q - offsetof(cm_file_lock_t, fileq));
- if (!found
- && fileLock->userp == userp
- && LargeIntegerEqualTo(fileLock->LOffset, LOffset)
- && LargeIntegerEqualTo(fileLock->LLength, LLength)) {
- found = 1;
- ourLock = fileLock;
- qq = q;
- }
- else if (fileLock->LockType & 0x1)
- anotherReader = 1;
- q = osi_QNext(q);
- }
-
- /* ignore byte ranges */
- if (smallLock && !found)
- return 0;
-
- /* don't try to unlock other people's locks */
- if (!found)
- return CM_ERROR_WOULDBLOCK;
-
- /* discard lock record */
- osi_QRemove(&scp->fileLocks, qq);
- /*
- * Don't delete it here; let the daemon delete it, to simplify
- * the daemon's traversal of the list.
- */
- lock_ObtainWrite(&cm_scacheLock);
- ourLock->flags |= CM_FILELOCK_FLAG_INVALID;
- cm_ReleaseUser(ourLock->userp);
- lock_ReleaseWrite(&cm_scacheLock);
-
- if (!anotherReader) {
- tfid.Volume = scp->fid.volume;
- tfid.Vnode = scp->fid.vnode;
- tfid.Unique = scp->fid.unique;
- lock_ReleaseMutex(&scp->mx);
- do {
- code = cm_Conn(&scp->fid, userp, reqp, &connp);
- if (code)
+ if (!found
+ && fileLock->userp == userp
+ && LargeIntegerEqualTo(fileLock->LOffset, LOffset)
+ && LargeIntegerEqualTo(fileLock->LLength, LLength)) {
+ found = 1;
+ ourLock = fileLock;
+ qq = q;
+ }
+ else if (fileLock->LockType & 0x1)
+ anotherReader = 1;
+ q = osi_QNext(q);
+ }
+
+ /* ignore byte ranges */
+ if (smallLock && !found)
+ return 0;
+
+ /* don't try to unlock other people's locks */
+ if (!found)
+ return CM_ERROR_WOULDBLOCK;
+
+ /* discard lock record */
+ osi_QRemove(&scp->fileLocks, qq);
+ /*
+ * Don't delete it here; let the daemon delete it, to simplify
+ * the daemon's traversal of the list.
+ */
+ lock_ObtainWrite(&cm_scacheLock);
+ ourLock->flags |= CM_FILELOCK_FLAG_INVALID;
+ cm_ReleaseUser(ourLock->userp);
+ lock_ReleaseWrite(&cm_scacheLock);
+
+ if (!anotherReader) {
+ tfid.Volume = scp->fid.volume;
+ tfid.Vnode = scp->fid.vnode;
+ tfid.Unique = scp->fid.unique;
+ lock_ReleaseMutex(&scp->mx);
+ do {
+ code = cm_Conn(&scp->fid, userp, reqp, &connp);
+ if (code)
break;
- code = RXAFS_ReleaseLock(connp->callp, &tfid, &volSync);
- } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync,
- NULL, NULL, code));
- code = cm_MapRPCError(code, reqp);
- lock_ObtainMutex(&scp->mx);
- }
-
- return code;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_ReleaseLock(connp->callp, &tfid, &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, userp, reqp, &scp->fid, &volSync,
+ NULL, NULL, code));
+ code = cm_MapRPCError(code, reqp);
+ lock_ObtainMutex(&scp->mx);
+ }
+
+ return code;
}
void cm_CheckLocks()
{
- osi_queue_t *q, *nq;
- cm_file_lock_t *fileLock;
- cm_req_t req;
- AFSFid tfid;
- AFSVolSync volSync;
- cm_conn_t *connp;
- long code;
-
- cm_InitReq(&req);
-
- lock_ObtainWrite(&cm_scacheLock);
- q = cm_allFileLocks;
- while (q) {
- fileLock = (cm_file_lock_t *) q;
- nq = osi_QNext(q);
- if (fileLock->flags & CM_FILELOCK_FLAG_INVALID) {
- osi_QRemove(&cm_allFileLocks, q);
- free(fileLock);
- }
- else if (!(fileLock->flags & CM_FILELOCK_FLAG_WAITING)) {
- tfid.Volume = fileLock->fid.volume;
- tfid.Vnode = fileLock->fid.vnode;
- tfid.Unique = fileLock->fid.unique;
- lock_ReleaseWrite(&cm_scacheLock);
- do {
- code = cm_Conn(&fileLock->fid, fileLock->userp,
- &req, &connp);
- if (code) break;
- code = RXAFS_ExtendLock(connp->callp, &tfid,
- &volSync);
- } while (cm_Analyze(connp, fileLock->userp, &req,
- &fileLock->fid, &volSync, NULL, NULL,
- code));
- code = cm_MapRPCError(code, &req);
- lock_ObtainWrite(&cm_scacheLock);
- }
- q = nq;
- }
- lock_ReleaseWrite(&cm_scacheLock);
-}
+ osi_queue_t *q, *nq;
+ cm_file_lock_t *fileLock;
+ cm_req_t req;
+ AFSFid tfid;
+ AFSVolSync volSync;
+ cm_conn_t *connp;
+ long code;
+
+ cm_InitReq(&req);
+
+ lock_ObtainWrite(&cm_scacheLock);
+ q = cm_allFileLocks;
+ while (q) {
+ fileLock = (cm_file_lock_t *) q;
+ nq = osi_QNext(q);
+ if (fileLock->flags & CM_FILELOCK_FLAG_INVALID) {
+ osi_QRemove(&cm_allFileLocks, q);
+ free(fileLock);
+ }
+ else if (!(fileLock->flags & CM_FILELOCK_FLAG_WAITING)) {
+ tfid.Volume = fileLock->fid.volume;
+ tfid.Vnode = fileLock->fid.vnode;
+ tfid.Unique = fileLock->fid.unique;
+ lock_ReleaseWrite(&cm_scacheLock);
+ do {
+ code = cm_Conn(&fileLock->fid, fileLock->userp,
+ &req, &connp);
+ if (code)
+ break;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_ExtendLock(connp->callp, &tfid,
+ &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, fileLock->userp, &req,
+ &fileLock->fid, &volSync, NULL, NULL,
+ code));
+ code = cm_MapRPCError(code, &req);
+ lock_ObtainWrite(&cm_scacheLock);
+ }
+ q = nq;
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
+}
long cm_RetryLock(cm_file_lock_t *oldFileLock, int vcp_is_dead)
{
- long code;
- int Which = ((oldFileLock->LockType & 0x1) ? LockRead : LockWrite);
- cm_scache_t *scp;
- AFSFid tfid;
- AFSVolSync volSync;
- cm_conn_t *connp;
- cm_file_lock_t *fileLock;
- osi_queue_t *q;
- cm_req_t req;
- int found = 0;
-
- if (vcp_is_dead) {
- code = CM_ERROR_TIMEDOUT;
- goto handleCode;
- }
-
- cm_InitReq(&req);
-
- /* Look for a conflict. Also, if we are asking for a shared lock,
- * look for another shared lock, so we don't have to do an RPC.
- */
- code = cm_GetSCache(&oldFileLock->fid, &scp, oldFileLock->userp, &req);
- if (code)
- return code;
-
- q = scp->fileLocks;
- while (q) {
- fileLock = (cm_file_lock_t *)
- ((char *) q - offsetof(cm_file_lock_t, fileq));
- if ((fileLock->flags &
- (CM_FILELOCK_FLAG_INVALID | CM_FILELOCK_FLAG_WAITING))
- == 0) {
- if ((oldFileLock->LockType & 0x1) == 0
- || (fileLock->LockType & 0x1) == 0) {
- cm_ReleaseSCache(scp);
- return CM_ERROR_WOULDBLOCK;
- }
- found = 1;
- }
- q = osi_QNext(q);
- }
-
- if (found)
- code = 0;
- else {
- tfid.Volume = oldFileLock->fid.volume;
- tfid.Vnode = oldFileLock->fid.vnode;
- tfid.Unique = oldFileLock->fid.unique;
- do {
- code = cm_Conn(&oldFileLock->fid, oldFileLock->userp,
- &req, &connp);
- if (code) break;
- code = RXAFS_SetLock(connp->callp, &tfid, Which,
- &volSync);
- } while (cm_Analyze(connp, oldFileLock->userp, &req,
- &oldFileLock->fid, &volSync,
- NULL, NULL, code));
- code = cm_MapRPCError(code, &req);
- }
+ long code;
+ int Which = ((oldFileLock->LockType & 0x1) ? LockRead : LockWrite);
+ cm_scache_t *scp;
+ AFSFid tfid;
+ AFSVolSync volSync;
+ cm_conn_t *connp;
+ cm_file_lock_t *fileLock;
+ osi_queue_t *q;
+ cm_req_t req;
+ int found = 0;
+
+ if (vcp_is_dead) {
+ code = CM_ERROR_TIMEDOUT;
+ goto handleCode;
+ }
+
+ cm_InitReq(&req);
+
+ /* Look for a conflict. Also, if we are asking for a shared lock,
+ * look for another shared lock, so we don't have to do an RPC.
+ */
+ code = cm_GetSCache(&oldFileLock->fid, &scp, oldFileLock->userp, &req);
+ if (code)
+ return code;
+
+ q = scp->fileLocks;
+ while (q) {
+ fileLock = (cm_file_lock_t *)
+ ((char *) q - offsetof(cm_file_lock_t, fileq));
+ if ((fileLock->flags &
+ (CM_FILELOCK_FLAG_INVALID | CM_FILELOCK_FLAG_WAITING))
+ == 0) {
+ if ((oldFileLock->LockType & 0x1) == 0
+ || (fileLock->LockType & 0x1) == 0) {
+ cm_ReleaseSCache(scp);
+ return CM_ERROR_WOULDBLOCK;
+ }
+ found = 1;
+ }
+ q = osi_QNext(q);
+ }
+
+ if (found)
+ code = 0;
+ else {
+ tfid.Volume = oldFileLock->fid.volume;
+ tfid.Vnode = oldFileLock->fid.vnode;
+ tfid.Unique = oldFileLock->fid.unique;
+ do {
+ code = cm_Conn(&oldFileLock->fid, oldFileLock->userp,
+ &req, &connp);
+ if (code)
+ break;
+ lock_ObtainMutex(&connp->mx);
+ code = RXAFS_SetLock(connp->callp, &tfid, Which,
+ &volSync);
+ lock_ReleaseMutex(&connp->mx);
+ } while (cm_Analyze(connp, oldFileLock->userp, &req,
+ &oldFileLock->fid, &volSync,
+ NULL, NULL, code));
+ code = cm_MapRPCError(code, &req);
+ }
handleCode:
- if (code != 0 && code != CM_ERROR_WOULDBLOCK) {
- lock_ObtainMutex(&scp->mx);
- osi_QRemove(&scp->fileLocks, &oldFileLock->fileq);
- lock_ReleaseMutex(&scp->mx);
- }
- lock_ObtainWrite(&cm_scacheLock);
- if (code == 0)
- oldFileLock->flags = 0;
- else if (code != CM_ERROR_WOULDBLOCK) {
- oldFileLock->flags |= CM_FILELOCK_FLAG_INVALID;
- cm_ReleaseUser(oldFileLock->userp);
+ if (code != 0 && code != CM_ERROR_WOULDBLOCK) {
+ lock_ObtainMutex(&scp->mx);
+ osi_QRemove(&scp->fileLocks, &oldFileLock->fileq);
+ lock_ReleaseMutex(&scp->mx);
+ }
+ lock_ObtainWrite(&cm_scacheLock);
+ if (code == 0)
+ oldFileLock->flags = 0;
+ else if (code != CM_ERROR_WOULDBLOCK) {
+ oldFileLock->flags |= CM_FILELOCK_FLAG_INVALID;
+ cm_ReleaseUser(oldFileLock->userp);
oldFileLock->userp = NULL;
- }
- lock_ReleaseWrite(&cm_scacheLock);
+ }
+ lock_ReleaseWrite(&cm_scacheLock);
- return code;
+ return code;
}
extern long cm_Lookup(cm_scache_t *dscp, char *namep, long flags,
cm_user_t *userp, cm_req_t *reqp, cm_scache_t **outpScpp);
+extern long cm_LookupInternal(cm_scache_t *dscp, char *namep, long flags,
+ cm_user_t *userp, cm_req_t *reqp,
+ cm_scache_t **outpScpp);
+
extern void cm_TryBulkStat(cm_scache_t *dscp, osi_hyper_t *offsetp,
cm_user_t *userp, cm_req_t *reqp);
extern long cm_SymLink(cm_scache_t *dscp, char *namep, char *contentsp,
long flags, cm_attr_t *attrp, cm_user_t *userp, cm_req_t *reqp);
-extern int cm_ExpandSysName(char *inp, char *outp, long outSize);
+extern int cm_ExpandSysName(char *inp, char *outp, long outSize,
+ unsigned int sysNameIndex);
extern long cm_Open(cm_scache_t *scp, int type, cm_user_t *userp);
return 0;
}
- input = space;
- memcpy(&setp, input, sizeof(afs_int32));
- input += sizeof(afs_int32);
- if (!setp) {
- fprintf(stderr,"No sysname name value was found\n");
+ input = space;
+ memcpy(&setp, input, sizeof(afs_int32));
+ input += sizeof(afs_int32);
+ if (!setp) {
+ fprintf(stderr,"No sysname name value was found\n");
return 1;
- }
+ }
printf("Current sysname%s", setp > 1 ? "s are" : " is");
for (; setp > 0; --setp ) {
printf(" \'%s\'", input);
input += strlen(input) + 1;
- }
+ }
printf("\n");
return 0;
}
char **argv; {
register afs_int32 code;
register struct cmd_syndesc *ts;
-
+
#ifdef AFS_AIX32_ENV
/*
* The following signal action for AIX is necessary so that in case of a
cmd_AddParm(ts, "-path", CMD_LIST, CMD_OPTIONAL, "dir/file path");
ts = cmd_CreateSyntax("sysname", SysNameCmd, 0, "get/set sysname (i.e. @sys) value");
- cmd_AddParm(ts, "-newsys", CMD_SINGLE, CMD_OPTIONAL, "new sysname");
+ cmd_AddParm(ts, "-newsys", CMD_LIST, CMD_OPTIONAL, "new sysname");
ts = cmd_CreateSyntax("exportafs", ExportAfsCmd, 0, "enable/disable translators to AFS");
cmd_AddParm(ts, "-type", CMD_SINGLE, 0, "exporter name");
git://git.openafs.org / openafs.git / commitdiff