* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
+ *
+ * Portions Copyright (c) 2006 Sine Nomine Associates
*/
#include <afsconfig.h>
#include <afs/param.h>
-RCSID("$Header$");
+RCSID
+ ("$Header$");
#include <stdio.h>
#include <errno.h>
#endif
#include <afs/acl.h>
#include <afs/ptclient.h>
+#include <afs/ptuser.h>
#include <afs/prs_fs.h>
#include <afs/auth.h>
#include <afs/afsutil.h>
#include "viced_prototypes.h"
#include "viced.h"
#include "host.h"
-
+#include "callback.h"
+#ifdef AFS_DEMAND_ATTACH_FS
+#include "../util/afsutil_prototypes.h"
+#include "../tviced/serialize_state.h"
+#endif /* AFS_DEMAND_ATTACH_FS */
#ifdef AFS_PTHREAD_ENV
pthread_mutex_t host_glock_mutex;
#endif /* AFS_PTHREAD_ENV */
-extern int Console;
-extern int CurrentConnections;
-extern int SystemId;
-extern int AnonymousID;
-extern prlist AnonCPS;
-extern int LogLevel;
-extern struct afsconf_dir *confDir; /* config dir object */
-extern int lwps; /* the max number of server threads */
-extern afsUUID FS_HostUUID;
-
-int CEs = 0; /* active clients */
-int CEBlocks = 0; /* number of blocks of CEs */
-struct client *CEFree = 0; /* first free client */
-struct host *hostList = 0; /* linked list of all hosts */
-int hostCount = 0; /* number of hosts in hostList */
-int rxcon_ident_key;
-int rxcon_client_key;
+extern int Console;
+extern int CurrentConnections;
+extern int SystemId;
+extern int AnonymousID;
+extern prlist AnonCPS;
+extern int LogLevel;
+extern struct afsconf_dir *confDir; /* config dir object */
+extern int lwps; /* the max number of server threads */
+extern afsUUID FS_HostUUID;
+
+int CEs = 0; /* active clients */
+int CEBlocks = 0; /* number of blocks of CEs */
+struct client *CEFree = 0; /* first free client */
+struct host *hostList = 0; /* linked list of all hosts */
+int hostCount = 0; /* number of hosts in hostList */
+int rxcon_ident_key;
+int rxcon_client_key;
+
+static struct rx_securityClass *sc = NULL;
+
+static void h_SetupCallbackConn_r(struct host * host);
+static void h_AddHostToHashTable_r(afs_uint32 addr, afs_uint16 port, struct host * host);
+static void h_AddHostToUuidHashTable_r(afsUUID * uuid, struct host * host);
+static int h_DeleteHostFromHashTableByAddr_r(afs_uint32 addr, afs_uint16 port, struct host *host);
#define CESPERBLOCK 73
-struct CEBlock /* block of CESPERBLOCK file entries */
-{
+struct CEBlock { /* block of CESPERBLOCK file entries */
struct client entry[CESPERBLOCK];
};
+static void h_TossStuff_r(register struct host *host);
+static int hashDelete_r(afs_uint32 addr, afs_uint16 port, struct host *host);
+
/*
* Make sure the subnet macros have been defined.
*/
#define IN_CLASSB_SUBNET 0xffffff00
#endif
-#define rxr_GetEpoch(aconn) (((struct rx_connection *)(aconn))->epoch)
-
-#define rxr_CidOf(aconn) (((struct rx_connection *)(aconn))->cid)
-
-#define rxr_PortOf(aconn) \
- rx_PortOf(rx_PeerOf(((struct rx_connection *)(aconn))))
-
-#define rxr_HostOf(aconn) \
- rx_HostOf(rx_PeerOf((struct rx_connection *)(aconn)))
-
/* get a new block of CEs and chain it on CEFree */
-static void GetCEBlock()
+static void
+GetCEBlock()
{
register struct CEBlock *block;
register int i;
ShutDownAndCore(PANIC);
}
- for(i = 0; i < (CESPERBLOCK -1); i++) {
+ for (i = 0; i < (CESPERBLOCK - 1); i++) {
Lock_Init(&block->entry[i].lock);
- block->entry[i].next = &(block->entry[i+1]);
+ block->entry[i].next = &(block->entry[i + 1]);
}
- block->entry[CESPERBLOCK-1].next = 0;
- Lock_Init(&block->entry[CESPERBLOCK-1].lock);
+ block->entry[CESPERBLOCK - 1].next = 0;
+ Lock_Init(&block->entry[CESPERBLOCK - 1].lock);
CEFree = (struct client *)block;
CEBlocks++;
-} /*GetCEBlock*/
+} /*GetCEBlock */
/* get the next available CE */
-static struct client *GetCE()
+static struct client *
+GetCE()
{
register struct client *entry;
CEFree = entry->next;
CEs++;
memset((char *)entry, 0, CLIENT_TO_ZERO(entry));
- return(entry);
+ return (entry);
-} /*GetCE*/
+} /*GetCE */
/* return an entry to the free list */
-static void FreeCE(register struct client *entry)
+static void
+FreeCE(register struct client *entry)
{
entry->next = CEFree;
CEFree = entry;
CEs--;
-} /*FreeCE*/
+} /*FreeCE */
/*
* The HTs and HTBlocks variables were formerly static, but they are
* now referenced elsewhere in the FileServer.
*/
-int HTs = 0; /* active file entries */
-int HTBlocks = 0; /* number of blocks of HTs */
-static struct host *HTFree = 0; /* first free file entry */
+int HTs = 0; /* active file entries */
+int HTBlocks = 0; /* number of blocks of HTs */
+static struct host *HTFree = 0; /* first free file entry */
/*
* Hash tables of host pointers. We need two tables, one
#define h_HashIndex(hostip) ((hostip) & (h_HASHENTRIES-1))
#define h_UuidHashIndex(uuidp) (((int)(afs_uuid_hash(uuidp))) & (h_HASHENTRIES-1))
-struct HTBlock /* block of HTSPERBLOCK file entries */
-{
+struct HTBlock { /* block of HTSPERBLOCK file entries */
struct host entry[h_HTSPERBLOCK];
};
/* get a new block of HTs and chain it on HTFree */
-static void GetHTBlock()
+static void
+GetHTBlock()
{
register struct HTBlock *block;
register int i;
static int index = 0;
+ if (HTBlocks == h_MAXHOSTTABLES) {
+ ViceLog(0, ("h_MAXHOSTTABLES reached\n"));
+ ShutDownAndCore(PANIC);
+ }
+
block = (struct HTBlock *)malloc(sizeof(struct HTBlock));
if (!block) {
ViceLog(0, ("Failed malloc in GetHTBlock\n"));
ShutDownAndCore(PANIC);
}
-
#ifdef AFS_PTHREAD_ENV
- for(i=0; i < (h_HTSPERBLOCK); i++)
+ for (i = 0; i < (h_HTSPERBLOCK); i++)
assert(pthread_cond_init(&block->entry[i].cond, NULL) == 0);
#endif /* AFS_PTHREAD_ENV */
- for(i=0; i < (h_HTSPERBLOCK); i++)
+ for (i = 0; i < (h_HTSPERBLOCK); i++)
Lock_Init(&block->entry[i].lock);
- for(i=0; i < (h_HTSPERBLOCK -1); i++)
- block->entry[i].next = &(block->entry[i+1]);
- for (i=0; i< (h_HTSPERBLOCK); i++)
- block->entry[i].index = index++;
- block->entry[h_HTSPERBLOCK-1].next = 0;
+ for (i = 0; i < (h_HTSPERBLOCK - 1); i++)
+ block->entry[i].next = &(block->entry[i + 1]);
+ for (i = 0; i < (h_HTSPERBLOCK); i++)
+ block->entry[i].index = index++;
+ block->entry[h_HTSPERBLOCK - 1].next = 0;
HTFree = (struct host *)block;
hosttableptrs[HTBlocks++] = block->entry;
-} /*GetHTBlock*/
+} /*GetHTBlock */
/* get the next available HT */
-static struct host *GetHT()
+static struct host *
+GetHT()
{
register struct host *entry;
- if (HTFree == 0)
+ if (HTFree == NULL)
GetHTBlock();
- assert(HTFree != 0);
+ assert(HTFree != NULL);
entry = HTFree;
HTFree = entry->next;
HTs++;
memset((char *)entry, 0, HOST_TO_ZERO(entry));
- return(entry);
+ return (entry);
-} /*GetHT*/
+} /*GetHT */
/* return an entry to the free list */
-static void FreeHT(register struct host *entry)
+static void
+FreeHT(register struct host *entry)
{
entry->next = HTFree;
HTFree = entry;
HTs--;
-} /*FreeHT*/
+} /*FreeHT */
static short consolePort = 0;
-int h_Release(register struct host *host)
+int
+h_Release(register struct host *host)
{
- H_LOCK
+ H_LOCK;
h_Release_r(host);
- H_UNLOCK
+ H_UNLOCK;
return 0;
}
* If either the HOSTDELETED or CLIENTDELETED flags are set
* then toss the host
*/
-int h_Release_r(register struct host *host)
-{
-
- if (!((host)->holds[h_holdSlot()] & ~h_holdbit()) ) {
- if (! h_OtherHolds_r(host) ) {
+int
+h_Release_r(register struct host *host)
+{
+
+ if (!((host)->holds[h_holdSlot()] & ~h_holdbit())) {
+ if (!h_OtherHolds_r(host)) {
/* must avoid masking this until after h_OtherHolds_r runs
- but it should be run before h_TossStuff_r */
+ * but it should be run before h_TossStuff_r */
(host)->holds[h_holdSlot()] &= ~h_holdbit();
- if ( (host->hostFlags & HOSTDELETED) ||
- (host->hostFlags & CLIENTDELETED) ) {
+ if ((host->hostFlags & HOSTDELETED)
+ || (host->hostFlags & CLIENTDELETED)) {
h_TossStuff_r(host);
- }
- } else
+ }
+ } else
(host)->holds[h_holdSlot()] &= ~h_holdbit();
- } else
- (host)->holds[h_holdSlot()] &= ~h_holdbit();
+ } else
+ (host)->holds[h_holdSlot()] &= ~h_holdbit();
return 0;
}
-int h_OtherHolds_r(register struct host *host)
+int
+h_OtherHolds_r(register struct host *host)
{
register int i, bit, slot;
bit = h_holdbit();
slot = h_holdSlot();
- for (i = 0 ; i < h_maxSlots ; i++) {
+ for (i = 0; i < h_maxSlots; i++) {
if (host->holds[i] != ((i == slot) ? bit : 0)) {
return 1;
}
return 0;
}
-int h_Lock_r(register struct host *host)
+int
+h_Lock_r(register struct host *host)
{
- H_UNLOCK
+ H_UNLOCK;
h_Lock(host);
- H_LOCK
+ H_LOCK;
return 0;
}
* else returns locks and returns 0
*/
-int h_NBLock_r(register struct host *host)
+int
+h_NBLock_r(register struct host *host)
{
struct Lock *hostLock = &host->lock;
int locked = 0;
- H_UNLOCK
- LOCK_LOCK(hostLock)
- if ( !(hostLock->excl_locked) && !(hostLock->readers_reading) )
+ H_UNLOCK;
+ LOCK_LOCK(hostLock);
+ if (!(hostLock->excl_locked) && !(hostLock->readers_reading))
hostLock->excl_locked = WRITE_LOCK;
else
locked = 1;
- LOCK_UNLOCK(hostLock)
- H_LOCK
- if ( locked )
+ LOCK_UNLOCK(hostLock);
+ H_LOCK;
+ if (locked)
return 1;
else
return 0;
* As advertised.
*------------------------------------------------------------------------*/
-static char h_AddrInSameNetwork(afs_uint32 a_targetAddr, afs_uint32 a_candAddr)
-{ /*h_AddrInSameNetwork*/
+static char
+h_AddrInSameNetwork(afs_uint32 a_targetAddr, afs_uint32 a_candAddr)
+{ /*h_AddrInSameNetwork */
afs_uint32 targetNet;
afs_uint32 candNet;
*/
if (IN_CLASSA(a_targetAddr)) {
if (!(IN_CLASSA(a_candAddr))) {
- return(0);
+ return (0);
}
targetNet = a_targetAddr & IN_CLASSA_NET;
- candNet = a_candAddr & IN_CLASSA_NET;
- }
- else
- if (IN_CLASSB(a_targetAddr)) {
- if (!(IN_CLASSB(a_candAddr))) {
- return(0);
- }
- targetNet = a_targetAddr & IN_CLASSB_NET;
- candNet = a_candAddr & IN_CLASSB_NET;
- } /*Class B target*/
- else
- if (IN_CLASSC(a_targetAddr)) {
- if (!(IN_CLASSC(a_candAddr))) {
- return(0);
- }
- targetNet = a_targetAddr & IN_CLASSC_NET;
- candNet = a_candAddr & IN_CLASSC_NET;
- } /*Class C target*/
- else {
- targetNet = a_targetAddr;
- candNet = a_candAddr;
- } /*Class D address*/
-
+ candNet = a_candAddr & IN_CLASSA_NET;
+ } else if (IN_CLASSB(a_targetAddr)) {
+ if (!(IN_CLASSB(a_candAddr))) {
+ return (0);
+ }
+ targetNet = a_targetAddr & IN_CLASSB_NET;
+ candNet = a_candAddr & IN_CLASSB_NET;
+ } /*Class B target */
+ else if (IN_CLASSC(a_targetAddr)) {
+ if (!(IN_CLASSC(a_candAddr))) {
+ return (0);
+ }
+ targetNet = a_targetAddr & IN_CLASSC_NET;
+ candNet = a_candAddr & IN_CLASSC_NET;
+ } /*Class C target */
+ else {
+ targetNet = a_targetAddr;
+ candNet = a_candAddr;
+ } /*Class D address */
+
/*
* Now, simply compare the extracted net values for the two addresses
* (which at this point are known to be of the same class)
*/
if (targetNet == candNet)
- return(1);
+ return (1);
else
- return(0);
+ return (0);
-} /*h_AddrInSameNetwork*/
+} /*h_AddrInSameNetwork */
#endif /* FS_STATS_DETAILED */
-
+/* Assumptions: called with held host */
void
h_gethostcps_r(register struct host *host, register afs_int32 now)
{
register int code;
- int slept=0, held;
-
- /* at this point, the host might not be locked, nor held */
- /* make sure that we do not disappear behind the RPC */
- if ( !(held = h_Held_r(host)) )
- h_Hold_r(host);
+ int slept = 0;
- /* wait if somebody else is already doing the getCPS call */
- while ( host->hostFlags & HCPS_INPROGRESS )
- {
+ /* wait if somebody else is already doing the getCPS call */
+ while (host->hostFlags & HCPS_INPROGRESS) {
slept = 1; /* I did sleep */
- host->hostFlags |= HCPS_WAITING; /* I am sleeping now */
+ host->hostFlags |= HCPS_WAITING; /* I am sleeping now */
#ifdef AFS_PTHREAD_ENV
pthread_cond_wait(&host->cond, &host_glock_mutex);
#else /* AFS_PTHREAD_ENV */
- if (( code = LWP_WaitProcess( &(host->hostFlags ))) != LWP_SUCCESS)
- ViceLog(0, ("LWP_WaitProcess returned %d\n", code));
+ if ((code = LWP_WaitProcess(&(host->hostFlags))) != LWP_SUCCESS)
+ ViceLog(0, ("LWP_WaitProcess returned %d\n", code));
#endif /* AFS_PTHREAD_ENV */
}
host->hostFlags |= HCPS_INPROGRESS; /* mark as CPSCall in progress */
if (host->hcps.prlist_val)
- free(host->hcps.prlist_val); /* this is for hostaclRefresh */
+ free(host->hcps.prlist_val); /* this is for hostaclRefresh */
host->hcps.prlist_val = NULL;
host->hcps.prlist_len = 0;
- slept? (host->cpsCall = FT_ApproxTime()): (host->cpsCall = now );
+ host->cpsCall = slept ? (FT_ApproxTime()) : (now);
- H_UNLOCK
- code = pr_GetHostCPS(htonl(host->host), &host->hcps);
- H_LOCK
+ H_UNLOCK;
+ code = pr_GetHostCPS(ntohl(host->host), &host->hcps);
+ H_LOCK;
if (code) {
/*
* Although ubik_Call (called by pr_GetHostCPS) traverses thru all protection servers
* quorums are complete) clients will be utilizing all the fileserver's lwps!!
*/
host->hcpsfailed = 1;
- ViceLog(0, ("Warning: GetHostCPS failed (%d) for %x; will retry\n", code, host->host));
+ ViceLog(0,
+ ("Warning: GetHostCPS failed (%d) for %x; will retry\n",
+ code, host->host));
} else {
host->hcpsfailed = 0;
- ViceLog(1, ("gethost: GetHostCPS failed (%d) for %x; ignored\n", code, host->host));
+ ViceLog(1,
+ ("gethost: GetHostCPS failed (%d) for %x; ignored\n",
+ code, host->host));
}
if (host->hcps.prlist_val)
free(host->hcps.prlist_val);
} else
host->hcpsfailed = 0;
- host->hostFlags &= ~HCPS_INPROGRESS;
- /* signal all who are waiting */
- if ( host->hostFlags & HCPS_WAITING) /* somebody is waiting */
- {
- host->hostFlags &= ~HCPS_WAITING;
+ host->hostFlags &= ~HCPS_INPROGRESS;
+ /* signal all who are waiting */
+ if (host->hostFlags & HCPS_WAITING) { /* somebody is waiting */
+ host->hostFlags &= ~HCPS_WAITING;
#ifdef AFS_PTHREAD_ENV
assert(pthread_cond_broadcast(&host->cond) == 0);
#else /* AFS_PTHREAD_ENV */
- if ( (code = LWP_NoYieldSignal( &(host->hostFlags) )) != LWP_SUCCESS )
- ViceLog(0, ("LWP_NoYieldSignal returns %d\n", code));
+ if ((code = LWP_NoYieldSignal(&(host->hostFlags))) != LWP_SUCCESS)
+ ViceLog(0, ("LWP_NoYieldSignal returns %d\n", code));
#endif /* AFS_PTHREAD_ENV */
}
-
- /* if we had held the host, release it now */
- if ( !held )
- h_Release_r(host);
}
-void h_flushhostcps(hostaddr, hport)
- register afs_uint32 hostaddr, hport; /* net byte order */
+/* args in net byte order */
+void
+h_flushhostcps(register afs_uint32 hostaddr, register afs_uint16 hport)
{
register struct host *host;
- int held;
-
- H_LOCK
+ int held = 0;
+
+ H_LOCK;
host = h_Lookup_r(hostaddr, hport, &held);
if (host) {
- host->hcpsfailed = 1;
+ host->hcpsfailed = 1;
+ if (!held)
+ h_Release_r(host);
}
- if (!held)
- h_Release_r(host);
- H_UNLOCK
-
-return;
+ H_UNLOCK;
+ return;
}
*/
#define DEF_ROPCONS 2115
-struct host *h_Alloc_r(register struct rx_connection *r_con)
+struct host *
+h_Alloc_r(register struct rx_connection *r_con)
{
- register int code;
struct servent *serverentry;
- register index = h_HashIndex(rxr_HostOf(r_con));
- register struct host *host;
- static struct rx_securityClass *sc = 0;
- afs_int32 now;
- struct h_hashChain* h_hashChain;
+ struct host *host;
+ afs_int32 now;
#if FS_STATS_DETAILED
- afs_uint32 newHostAddr_HBO; /*New host IP addr, in host byte order*/
+ afs_uint32 newHostAddr_HBO; /*New host IP addr, in host byte order */
#endif /* FS_STATS_DETAILED */
host = GetHT();
- h_hashChain = (struct h_hashChain*) malloc(sizeof(struct h_hashChain));
- if (!h_hashChain) {
- ViceLog(0, ("Failed malloc in h_Alloc_r\n"));
- assert(0);
- }
- h_hashChain->hostPtr = host;
- h_hashChain->addr = rxr_HostOf(r_con);
- h_hashChain->next = hostHashTable[index];
- hostHashTable[index] = h_hashChain;
-
host->host = rxr_HostOf(r_con);
host->port = rxr_PortOf(r_con);
- if(consolePort == 0 ) { /* find the portal number for console */
+
+ h_AddHostToHashTable_r(host->host, host->port, host);
+
+ if (consolePort == 0) { /* find the portal number for console */
#if defined(AFS_OSF_ENV)
serverentry = getservbyname("ropcons", "");
#else
serverentry = getservbyname("ropcons", 0);
-#endif
+#endif
if (serverentry)
consolePort = serverentry->s_port;
else
- consolePort = DEF_ROPCONS; /* Use a default */
+ consolePort = htons(DEF_ROPCONS); /* Use a default */
}
- if (host->port == consolePort) host->Console = 1;
+ if (host->port == consolePort)
+ host->Console = 1;
/* Make a callback channel even for the console, on the off chance that it
- makes a request that causes a break call back. It shouldn't. */
- {
- if (!sc)
- sc = rxnull_NewClientSecurityObject();
- host->callback_rxcon = rx_NewConnection (host->host, host->port,
- 1, sc, 0);
- rx_SetConnDeadTime(host->callback_rxcon, 50);
- rx_SetConnHardDeadTime(host->callback_rxcon, AFS_HARDDEADTIME);
- }
+ * makes a request that causes a break call back. It shouldn't. */
+ h_SetupCallbackConn_r(host);
now = host->LastCall = host->cpsCall = host->ActiveCall = FT_ApproxTime();
host->hostFlags = 0;
host->hcps.prlist_val = NULL;
host->hcps.prlist_len = 0;
- host->hcps.prlist_val = NULL;
- host->interface = 0;
+ host->interface = NULL;
#ifdef undef
- host->hcpsfailed = 0; /* save cycles */
- h_gethostcps(host); /* do this under host lock */
+ host->hcpsfailed = 0; /* save cycles */
+ h_gethostcps(host); /* do this under host hold/lock */
#endif
- host->FirstClient = 0;
+ host->FirstClient = NULL;
h_Hold_r(host);
h_Lock_r(host);
h_InsertList_r(host); /* update global host List */
* Compare the new host's IP address (in host byte order) with ours
* (the File Server's), remembering if they are in the same network.
*/
- newHostAddr_HBO = (afs_uint32)ntohl(host->host);
- host->InSameNetwork = h_AddrInSameNetwork(FS_HostAddr_HBO,
- newHostAddr_HBO);
+ newHostAddr_HBO = (afs_uint32) ntohl(host->host);
+ host->InSameNetwork =
+ h_AddrInSameNetwork(FS_HostAddr_HBO, newHostAddr_HBO);
#endif /* FS_STATS_DETAILED */
return host;
-} /*h_Alloc_r*/
+} /*h_Alloc_r */
+
+/* Make a callback channel even for the console, on the off chance that it
+ * makes a request that causes a break call back. It shouldn't. */
+static void
+h_SetupCallbackConn_r(struct host * host)
+{
+ if (!sc)
+ sc = rxnull_NewClientSecurityObject();
+ host->callback_rxcon =
+ rx_NewConnection(host->host, host->port, 1, sc, 0);
+ rx_SetConnDeadTime(host->callback_rxcon, 50);
+ rx_SetConnHardDeadTime(host->callback_rxcon, AFS_HARDDEADTIME);
+}
+
/* Lookup a host given an IP address and UDP port number. */
/* hostaddr and hport are in network order */
/* Note: host should be released by caller if 0 == *heldp and non-null */
/* hostaddr and hport are in network order */
-struct host *h_Lookup_r(afs_uint32 hostaddr, afs_uint32 hport, int *heldp)
+struct host *
+h_Lookup_r(afs_uint32 haddr, afs_uint16 hport, int *heldp)
{
- register afs_int32 now;
- register struct host *host=0;
- register struct h_hashChain* chain;
- register index = h_HashIndex(hostaddr);
+ afs_int32 now;
+ struct host *host = 0;
+ struct h_hashChain *chain;
+ int index = h_HashIndex(haddr);
extern int hostaclRefresh;
-restart:
- for (chain=hostHashTable[index]; chain; chain=chain->next) {
+ restart:
+ for (chain = hostHashTable[index]; chain; chain = chain->next) {
host = chain->hostPtr;
assert(host);
- if (!(host->hostFlags & HOSTDELETED) && chain->addr == hostaddr
- && host->port == hport) {
+ if (!(host->hostFlags & HOSTDELETED) && chain->addr == haddr
+ && chain->port == hport) {
*heldp = h_Held_r(host);
if (!*heldp)
h_Hold_r(host);
goto restart;
}
h_Unlock_r(host);
- now = FT_ApproxTime(); /* always evaluate "now" */
- if (host->hcpsfailed || (host->cpsCall+hostaclRefresh < now )) {
+ now = FT_ApproxTime(); /* always evaluate "now" */
+ if (host->hcpsfailed || (host->cpsCall + hostaclRefresh < now)) {
/*
* Every hostaclRefresh period (def 2 hrs) get the new
* membership list for the host. Note this could be the
* first time that the host is added to a group. Also
* here we also retry on previous legitimate hcps failures.
+ *
+ * If we get here we still have a host hold.
*/
- h_gethostcps_r(host,now);
+ h_gethostcps_r(host, now);
}
break;
}
}
return host;
-} /*h_Lookup*/
+} /*h_Lookup */
/* Lookup a host given its UUID. */
-struct host *h_LookupUuid_r(afsUUID *uuidp)
+struct host *
+h_LookupUuid_r(afsUUID * uuidp)
{
- register struct host *host=0;
- register struct h_hashChain* chain;
- register index = h_UuidHashIndex(uuidp);
+ struct host *host = 0;
+ struct h_hashChain *chain;
+ int index = h_UuidHashIndex(uuidp);
- for (chain=hostUuidHashTable[index]; chain; chain=chain->next) {
+ for (chain = hostUuidHashTable[index]; chain; chain = chain->next) {
host = chain->hostPtr;
assert(host);
- if (!(host->hostFlags & HOSTDELETED) && host->interface
- && afs_uuid_equal(&host->interface->uuid, uuidp)) {
+ if (!(host->hostFlags & HOSTDELETED) && host->interface
+ && afs_uuid_equal(&host->interface->uuid, uuidp)) {
break;
}
host = NULL;
}
return host;
-} /*h_Lookup*/
+} /*h_Lookup */
/*
*/
/* h_TossStuff_r: Toss anything in the host structure (the host or
- * clients marked for deletion. Called from r_Release ONLY.
+ * clients marked for deletion. Called from h_Release_r ONLY.
* To be called, there must be no holds, and either host->deleted
* or host->clientDeleted must be set.
*/
-int h_TossStuff_r(register struct host *host)
+static void
+h_TossStuff_r(register struct host *host)
{
register struct client **cp, *client;
- int i;
+ int i;
/* if somebody still has this host held */
- for (i=0; (i<h_maxSlots)&&(!(host)->holds[i]); i++);
- if (i!=h_maxSlots)
+ for (i = 0; (i < h_maxSlots) && (!(host)->holds[i]); i++);
+ if (i != h_maxSlots)
return;
- /* ASSUMPTION: r_FreeConnection() does not yield */
- for (cp = &host->FirstClient; (client = *cp); ) {
+ /* if somebody still has this host locked */
+ if (h_NBLock_r(host) != 0) {
+ char hoststr[16];
+ ViceLog(0,
+ ("Warning: h_TossStuff_r failed; Host %s:%d was locked.\n",
+ afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port)));
+ return;
+ } else {
+ h_Unlock_r(host);
+ }
+
+ /* ASSUMPTION: rxi_FreeConnection() does not yield */
+ for (cp = &host->FirstClient; (client = *cp);) {
if ((host->hostFlags & HOSTDELETED) || client->deleted) {
- if ((client->ViceId != ANONYMOUSID) && client->CPS.prlist_val) {
- free(client->CPS.prlist_val);
- client->CPS.prlist_val = NULL;
+ int code;
+ ObtainWriteLockNoBlock(&client->lock, code);
+ if (code < 0) {
+ char hoststr[16];
+ ViceLog(0,
+ ("Warning: h_TossStuff_r failed: Host %s:%d client %x was locked.\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port), client));
+ return;
}
+
+ if (client->refCount) {
+ char hoststr[16];
+ ViceLog(0,
+ ("Warning: h_TossStuff_r failed: Host %s:%d client %x refcount %d.\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port), client, client->refCount));
+ /* This is the same thing we do if the host is locked */
+ ReleaseWriteLock(&client->lock);
+ return;
+ }
+ client->CPS.prlist_len = 0;
+ if ((client->ViceId != ANONYMOUSID) && client->CPS.prlist_val)
+ free(client->CPS.prlist_val);
+ client->CPS.prlist_val = NULL;
if (client->tcon) {
rx_SetSpecific(client->tcon, rxcon_client_key, (void *)0);
+ rx_PutConnection(client->tcon);
}
CurrentConnections--;
*cp = client->next;
+ ReleaseWriteLock(&client->lock);
FreeCE(client);
- } else cp = &client->next;
+ } else
+ cp = &client->next;
}
/* We've just cleaned out all the deleted clients; clear the flag */
register struct h_hashChain **hp, *th;
register struct rx_connection *rxconn;
afsUUID *uuidp;
- afs_uint32 hostAddr;
+ struct AddrPort hostAddrPort;
int i;
- if (host->Console & 1) Console--;
+ if (host->Console & 1)
+ Console--;
if ((rxconn = host->callback_rxcon)) {
host->callback_rxcon = (struct rx_connection *)0;
/*
* destroying the connection.
*/
client = rx_GetSpecific(rxconn, rxcon_client_key);
- if (client && client->tcon == rxconn)
+ if (client && client->tcon == rxconn) {
+ rx_PutConnection(client->tcon);
client->tcon = NULL;
+ }
rx_SetSpecific(rxconn, rxcon_client_key, (void *)0);
rx_DestroyConnection(rxconn);
}
host->hostFlags &= ~RESETDONE; /* just to be safe */
/* if alternate addresses do not exist */
- if ( !(host->interface) )
- {
- for (hp = &hostHashTable[h_HashIndex(host->host)];
- (th = *hp); hp = &th->next)
- {
- assert(th->hostPtr);
- if (th->hostPtr == host)
- {
- *hp = th->next;
- h_DeleteList_r(host);
- FreeHT(host);
- break;
- }
+ if (!(host->interface)) {
+ for (hp = &hostHashTable[h_HashIndex(host->host)]; (th = *hp);
+ hp = &th->next) {
+ assert(th->hostPtr);
+ if (th->hostPtr == host) {
+ *hp = th->next;
+ h_DeleteList_r(host);
+ FreeHT(host);
+ free(th);
+ break;
}
- }
- else
- {
+ }
+ } else {
/* delete all hash entries for the UUID */
uuidp = &host->interface->uuid;
- for (hp = &hostUuidHashTable[h_UuidHashIndex(uuidp)];
- (th = *hp); hp = &th->next) {
+ for (hp = &hostUuidHashTable[h_UuidHashIndex(uuidp)]; (th = *hp);
+ hp = &th->next) {
assert(th->hostPtr);
- if (th->hostPtr == host)
- {
+ if (th->hostPtr == host) {
*hp = th->next;
free(th);
break;
}
}
/* delete all hash entries for alternate addresses */
- assert(host->interface->numberOfInterfaces > 0 );
- for ( i=0; i < host->interface->numberOfInterfaces; i++)
- {
- hostAddr = host->interface->addr[i];
- for (hp = &hostHashTable[h_HashIndex(hostAddr)];
- (th = *hp); hp = &th->next)
- {
- assert(th->hostPtr);
- if (th->hostPtr == host)
- {
- *hp = th->next;
- free(th);
- break;
- }
+ assert(host->interface->numberOfInterfaces > 0);
+ for (i = 0; i < host->interface->numberOfInterfaces; i++) {
+ hostAddrPort = host->interface->interface[i];
+
+ for (hp = &hostHashTable[h_HashIndex(hostAddrPort.addr)]; (th = *hp);
+ hp = &th->next) {
+ assert(th->hostPtr);
+ if (th->hostPtr == host) {
+ *hp = th->next;
+ free(th);
+ break;
+ }
}
- }
+ }
free(host->interface);
host->interface = NULL;
- h_DeleteList_r(host); /* remove host from global host List */
+ h_DeleteList_r(host); /* remove host from global host List */
FreeHT(host);
- } /* if alternate address exists */
- }
-} /*h_TossStuff_r*/
+ } /* if alternate address exists */
+ }
+} /*h_TossStuff_r */
/* Called by rx when a server connection disappears */
-int h_FreeConnection(struct rx_connection *tcon)
+int
+h_FreeConnection(struct rx_connection *tcon)
{
register struct client *client;
- client = (struct client *) rx_GetSpecific(tcon, rxcon_client_key);
+ client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
if (client) {
- H_LOCK
- if (client->tcon == tcon)
- client->tcon = (struct rx_connection *)0;
- H_UNLOCK
+ H_LOCK;
+ if (client->tcon == tcon) {
+ rx_PutConnection(client->tcon);
+ client->tcon = NULL;
+ }
+ H_UNLOCK;
}
-} /*h_FreeConnection*/
+ return 0;
+} /*h_FreeConnection */
/* h_Enumerate: Calls (*proc)(host, held, param) for at least each host in the
* to (*proc) as the param held. The proc should return 0 if the host should be
* released, 1 if it should be held after enumeration.
*/
-void h_Enumerate(int (*proc)(), char *param)
+void
+h_Enumerate(int (*proc) (), char *param)
{
register struct host *host, **list;
register int *held;
register int i, count;
-
- H_LOCK
+
+ H_LOCK;
if (hostCount == 0) {
- H_UNLOCK
+ H_UNLOCK;
return;
}
list = (struct host **)malloc(hostCount * sizeof(struct host *));
if (!list) {
- ViceLog(0, ("Failed malloc in h_Enumerate\n"));
+ ViceLog(0, ("Failed malloc in h_Enumerate\n"));
assert(0);
}
held = (int *)malloc(hostCount * sizeof(int));
if (!held) {
- ViceLog(0, ("Failed malloc in h_Enumerate\n"));
+ ViceLog(0, ("Failed malloc in h_Enumerate\n"));
assert(0);
}
- for (count = 0, host = hostList ; host ; host = host->next, count++) {
+ for (count = 0, host = hostList; host; host = host->next, count++) {
list[count] = host;
if (!(held[count] = h_Held_r(host)))
h_Hold_r(host);
}
assert(count == hostCount);
- H_UNLOCK
- for ( i = 0 ; i < count ; i++) {
- held[i] = (*proc)(list[i], held[i], param);
- if (!held[i])
- h_Release(list[i]);/* this might free up the host */
+ H_UNLOCK;
+ for (i = 0; i < count; i++) {
+ held[i] = (*proc) (list[i], held[i], param);
+ if (!H_ENUMERATE_ISSET_HELD(held[i]))
+ h_Release(list[i]); /* this might free up the host */
+ /* bail out of the enumeration early */
+ if (H_ENUMERATE_ISSET_BAIL(held[i]))
+ break;
}
free((void *)list);
free((void *)held);
-} /*h_Enumerate*/
+} /*h_Enumerate */
/* h_Enumerate_r (revised):
* Calls (*proc)(host, held, param) for each host in hostList, starting
* The proc should return 0 if the host should be released, 1 if it should
* be held after enumeration.
*/
-void h_Enumerate_r(int (*proc)(), struct host* enumstart, char *param)
+void
+h_Enumerate_r(int (*proc) (), struct host *enumstart, char *param)
{
- register struct host *host;
- register int held;
-
+ register struct host *host, *next;
+ register int held, nheld;
+
if (hostCount == 0) {
return;
}
- for (host = enumstart ; host ; host = host->next) {
- if (!(held = h_Held_r(host)))
- h_Hold_r(host);
- held = (*proc)(host, held, param);
- if (!held)
- h_Release_r(host);/* this might free up the host */
+ if (enumstart && !(held = h_Held_r(enumstart)))
+ h_Hold_r(enumstart);
+ for (host = enumstart; host; host = next, held = nheld) {
+ next = host->next;
+ if (next && !(nheld = h_Held_r(next)) && !H_ENUMERATE_ISSET_BAIL(held))
+ h_Hold_r(next);
+ held = (*proc) (host, held, param);
+ if (!H_ENUMERATE_ISSET_HELD(held))
+ h_Release_r(host); /* this might free up the host */
+ if (H_ENUMERATE_ISSET_BAIL(held))
+ break;
}
-} /*h_Enumerate_r*/
+} /*h_Enumerate_r */
/* inserts a new HashChain structure corresponding to this UUID */
-void hashInsertUuid_r(struct afsUUID *uuid, struct host* host)
+static void
+h_AddHostToUuidHashTable_r(struct afsUUID *uuid, struct host *host)
+{
+ int index;
+ struct h_hashChain *chain;
+
+ /* hash into proper bucket */
+ index = h_UuidHashIndex(uuid);
+
+ /* insert into beginning of list for this bucket */
+ chain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
+ if (!chain) {
+ ViceLog(0, ("Failed malloc in h_AddHostToUuidHashTable_r\n"));
+ assert(0);
+ }
+ assert(chain);
+ chain->hostPtr = host;
+ chain->next = hostUuidHashTable[index];
+ hostUuidHashTable[index] = chain;
+}
+
+
+/* inserts a new HashChain structure corresponding to this address */
+static void
+h_AddHostToHashTable_r(afs_uint32 addr, afs_uint16 port, struct host *host)
+{
+ int index;
+ struct h_hashChain *chain;
+
+ /* hash into proper bucket */
+ index = h_HashIndex(addr);
+
+ /* insert into beginning of list for this bucket */
+ chain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
+ if (!chain) {
+ ViceLog(0, ("Failed malloc in h_AddHostToHashTable_r\n"));
+ assert(0);
+ }
+ chain->hostPtr = host;
+ chain->next = hostHashTable[index];
+ chain->addr = addr;
+ chain->port = port;
+ hostHashTable[index] = chain;
+
+}
+
+/*
+ * This is called with host locked and held. At this point, the
+ * hostHashTable should not be having entries for the alternate
+ * interfaces. This function has to insert these entries in the
+ * hostHashTable.
+ *
+ * All addresses are in network byte order.
+ */
+int
+addInterfaceAddr_r(struct host *host, afs_uint32 addr, afs_uint16 port)
{
- int index;
- struct h_hashChain* chain;
+ int i;
+ int number;
+ int found;
+ struct Interface *interface;
+ char hoststr[16], hoststr2[16];
+
+ assert(host);
+ assert(host->interface);
- /* hash into proper bucket */
- index = h_UuidHashIndex(uuid);
+ ViceLog(125, ("addInterfaceAddr : host %s:%d addr %s:%d\n",
+ afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
+ afs_inet_ntoa_r(addr, hoststr2), ntohs(port)));
- /* insert into beginning of list for this bucket */
- chain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
- if (!chain) {
- ViceLog(0, ("Failed malloc in hashInsertUuid_r\n"));
+ /*
+ * Make sure this address is on the list of known addresses
+ * for this host.
+ */
+ number = host->interface->numberOfInterfaces;
+ for (i = 0, found = 0; i < number && !found; i++) {
+ if (host->interface->interface[i].addr == addr &&
+ host->interface->interface[i].port == port)
+ found = 1;
+ }
+ if (!found) {
+ interface = (struct Interface *)
+ malloc(sizeof(struct Interface) + (sizeof(struct AddrPort) * number));
+ if (!interface) {
+ ViceLog(0, ("Failed malloc in addInterfaceAddr_r\n"));
assert(0);
}
- assert(chain);
- chain->hostPtr = host;
- chain->next = hostUuidHashTable[index];
- hostUuidHashTable[index] = chain;
+ interface->numberOfInterfaces = number + 1;
+ interface->uuid = host->interface->uuid;
+ for (i = 0; i < number; i++)
+ interface->interface[i] = host->interface->interface[i];
+ interface->interface[number].addr = addr;
+ interface->interface[number].port = port;
+ free(host->interface);
+ host->interface = interface;
+ }
+
+ /*
+ * Create a hash table entry for this address
+ */
+ h_AddHostToHashTable_r(addr, port, host);
+
+ return 0;
+}
+
+
+/*
+ * This is called with host locked and held. At this point, the
+ * hostHashTable should not be having entries for the alternate
+ * interfaces. This function has to insert these entries in the
+ * hostHashTable.
+ *
+ * All addresses are in network byte order.
+ */
+int
+removeInterfaceAddr_r(struct host *host, afs_uint32 addr, afs_uint16 port)
+{
+ int i;
+ int number;
+ int found;
+ struct Interface *interface;
+ char hoststr[16], hoststr2[16];
+
+ assert(host);
+ assert(host->interface);
+
+ ViceLog(125, ("removeInterfaceAddr : host %s:%d addr %s:%d\n",
+ afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
+ afs_inet_ntoa_r(addr, hoststr2), ntohs(port)));
+
+ /*
+ * Make sure this address is on the list of known addresses
+ * for this host.
+ */
+ interface = host->interface;
+ number = host->interface->numberOfInterfaces;
+ for (i = 0, found = 0; i < number; i++) {
+ if (interface->interface[i].addr == addr &&
+ interface->interface[i].port == port) {
+ found = 1;
+ break;
+ }
+ }
+ if (found) {
+ number--;
+ for (; i < number; i++) {
+ interface->interface[i].addr = interface->interface[i+1].addr;
+ interface->interface[i].port = interface->interface[i+1].port;
+ }
+ interface->numberOfInterfaces = number;
+ }
+
+ /*
+ * Remove the hash table entry for this address
+ */
+ h_DeleteHostFromHashTableByAddr_r(addr, port, host);
+
+ return 0;
}
+
/* Host is returned held */
-struct host *h_GetHost_r(struct rx_connection *tcon)
+struct host *
+h_GetHost_r(struct rx_connection *tcon)
{
struct host *host;
struct host *oldHost;
int code;
- int held;
+ int held, oheld;
struct interfaceAddr interf;
int interfValid = 0;
struct Identity *identP = NULL;
- afs_int32 haddr;
- afs_int32 hport;
- int i, j, count;
+ afs_uint32 haddr;
+ afs_uint16 hport;
char hoststr[16], hoststr2[16];
+ Capabilities caps;
+ struct rx_connection *cb_conn = NULL;
+
+ caps.Capabilities_val = NULL;
haddr = rxr_HostOf(tcon);
hport = rxr_PortOf(tcon);
-retry:
+ retry:
+ if (caps.Capabilities_val)
+ free(caps.Capabilities_val);
+ caps.Capabilities_val = NULL;
+ caps.Capabilities_len = 0;
+
code = 0;
- identP = (struct Identity *)rx_GetSpecific(tcon, rxcon_ident_key);
host = h_Lookup_r(haddr, hport, &held);
- if (host && !identP && !(host->Console&1)) {
+ identP = (struct Identity *)rx_GetSpecific(tcon, rxcon_ident_key);
+ if (host && !identP && !(host->Console & 1)) {
/* This is a new connection, and we already have a host
* structure for this address. Verify that the identity
* of the caller matches the identity in the host structure.
*/
h_Lock_r(host);
- if ( !(host->hostFlags & ALTADDR) )
- {
- /* Another thread is doing initialization */
- h_Unlock_r(host);
- if ( !held) h_Release_r(host);
- ViceLog(125, ("Host %s:%d starting h_Lookup again\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
- goto retry;
+ if (!(host->hostFlags & ALTADDR)) {
+ /* Another thread is doing initialization */
+ h_Unlock_r(host);
+ if (!held)
+ h_Release_r(host);
+ ViceLog(125,
+ ("Host %s:%d starting h_Lookup again\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
+ goto retry;
}
host->hostFlags &= ~ALTADDR;
- H_UNLOCK
- code = RXAFSCB_WhoAreYou(host->callback_rxcon, &interf);
- H_LOCK
- if ( code == RXGEN_OPCODE ) {
- identP = (struct Identity *)malloc(sizeof(struct Identity));
- if (!identP) {
- ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
- assert(0);
- }
- identP->valid = 0;
- rx_SetSpecific(tcon, rxcon_ident_key, identP);
- /* The host on this connection was unable to respond to
- * the WhoAreYou. We will treat this as a new connection
- * from the existing host. The worst that can happen is
- * that we maintain some extra callback state information */
- if (host->interface) {
- ViceLog(0,
- ("Host %s:%d used to support WhoAreYou, deleting.\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
- host->hostFlags |= HOSTDELETED;
- h_Unlock_r(host);
- if (!held) h_Release_r(host);
- host = NULL;
- goto retry;
- }
+ cb_conn = host->callback_rxcon;
+ rx_GetConnection(cb_conn);
+ H_UNLOCK;
+ code =
+ RXAFSCB_TellMeAboutYourself(cb_conn, &interf, &caps);
+ if (code == RXGEN_OPCODE)
+ code = RXAFSCB_WhoAreYou(cb_conn, &interf);
+ rx_PutConnection(cb_conn);
+ cb_conn=NULL;
+ H_LOCK;
+ if (code == RXGEN_OPCODE) {
+ identP = (struct Identity *)malloc(sizeof(struct Identity));
+ if (!identP) {
+ ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
+ assert(0);
+ }
+ identP->valid = 0;
+ rx_SetSpecific(tcon, rxcon_ident_key, identP);
+ /* The host on this connection was unable to respond to
+ * the WhoAreYou. We will treat this as a new connection
+ * from the existing host. The worst that can happen is
+ * that we maintain some extra callback state information */
+ if (host->interface) {
+ ViceLog(0,
+ ("Host %s:%d used to support WhoAreYou, deleting.\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
+ host->hostFlags |= HOSTDELETED;
+ h_Unlock_r(host);
+ if (!held)
+ h_Release_r(host);
+ host = NULL;
+ goto retry;
+ }
} else if (code == 0) {
- interfValid = 1;
- identP = (struct Identity *)malloc(sizeof(struct Identity));
- if (!identP) {
- ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
- assert(0);
- }
- identP->valid = 1;
- identP->uuid = interf.uuid;
- rx_SetSpecific(tcon, rxcon_ident_key, identP);
- /* Check whether the UUID on this connection matches
- * the UUID in the host structure. If they don't match
- * then this is not the same host as before. */
- if ( !host->interface
- || !afs_uuid_equal(&interf.uuid, &host->interface->uuid) ) {
- ViceLog(25,
- ("Host %s:%d has changed its identity, deleting.\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
- host->hostFlags |= HOSTDELETED;
- h_Unlock_r(host);
- if (!held) h_Release_r(host);
- host = NULL;
- goto retry;
- }
+ interfValid = 1;
+ identP = (struct Identity *)malloc(sizeof(struct Identity));
+ if (!identP) {
+ ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
+ assert(0);
+ }
+ identP->valid = 1;
+ identP->uuid = interf.uuid;
+ rx_SetSpecific(tcon, rxcon_ident_key, identP);
+ /* Check whether the UUID on this connection matches
+ * the UUID in the host structure. If they don't match
+ * then this is not the same host as before. */
+ if (!host->interface
+ || !afs_uuid_equal(&interf.uuid, &host->interface->uuid)) {
+ ViceLog(25,
+ ("Host %s:%d has changed its identity, deleting.\n",
+ afs_inet_ntoa_r(host->host, hoststr), host->port));
+ host->hostFlags |= HOSTDELETED;
+ h_Unlock_r(host);
+ if (!held)
+ h_Release_r(host);
+ host = NULL;
+ goto retry;
+ }
} else {
afs_inet_ntoa_r(host->host, hoststr);
- ViceLog(0,("CB: WhoAreYou failed for %s:%d, error %d\n",
- hoststr, ntohs(host->port), code));
+ ViceLog(0,
+ ("CB: WhoAreYou failed for %s:%d, error %d\n", hoststr,
+ ntohs(host->port), code));
host->hostFlags |= VENUSDOWN;
}
+ if (caps.Capabilities_val
+ && (caps.Capabilities_val[0] & CLIENT_CAPABILITY_ERRORTRANS))
+ host->hostFlags |= HERRORTRANS;
+ else
+ host->hostFlags &= ~(HERRORTRANS);
host->hostFlags |= ALTADDR;
h_Unlock_r(host);
} else if (host) {
- if ( ! (host->hostFlags & ALTADDR) )
- {
- /* another thread is doing the initialisation */
- ViceLog(125, ("Host %s:%d waiting for host-init to complete\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
- h_Lock_r(host);
- h_Unlock_r(host);
- if ( !held) h_Release_r(host);
- ViceLog(125, ("Host %s:%d starting h_Lookup again\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
- goto retry;
+ if (!(host->hostFlags & ALTADDR)) {
+ /* another thread is doing the initialisation */
+ ViceLog(125,
+ ("Host %s:%d waiting for host-init to complete\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
+ h_Lock_r(host);
+ h_Unlock_r(host);
+ if (!held)
+ h_Release_r(host);
+ ViceLog(125,
+ ("Host %s:%d starting h_Lookup again\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
+ goto retry;
}
/* We need to check whether the identity in the host structure
* matches the identity on the connection. If they don't match
* then treat this a new host. */
- if ( !(host->Console&1)
- && ( ( !identP->valid && host->interface )
- || ( identP->valid && !host->interface )
- || ( identP->valid
- && !afs_uuid_equal(&identP->uuid, &host->interface->uuid) ) ) )
- {
+ if (!(host->Console & 1)
+ && ((!identP->valid && host->interface)
+ || (identP->valid && !host->interface)
+ || (identP->valid
+ && !afs_uuid_equal(&identP->uuid,
+ &host->interface->uuid)))) {
char uuid1[128], uuid2[128];
+ if (identP->valid)
+ afsUUID_to_string(&identP->uuid, uuid1, 127);
+ if (host->interface)
+ afsUUID_to_string(&host->interface->uuid, uuid2, 127);
+ ViceLog(0,
+ ("CB: new identity for host %s:%d, deleting(%x %x %s %s)\n",
+ afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port),
+ identP->valid, host->interface,
+ identP->valid ? uuid1 : "",
+ host->interface ? uuid2 : ""));
+
/* The host in the cache is not the host for this connection */
host->hostFlags |= HOSTDELETED;
h_Unlock_r(host);
- if (!held) h_Release_r(host);
-
- if (identP->valid)
- afsUUID_to_string(identP->uuid, uuid1, 127);
- if (host->interface)
- afsUUID_to_string(host->interface->uuid, uuid2, 127);
- ViceLog(0,
- ("CB: new identity for host %s:%d, deleting(%x %x %s %s)\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port,
- identP->valid, host->interface, identP->valid ? uuid1 :
- "", host->interface ? uuid2 : ""));
+ if (!held)
+ h_Release_r(host);
goto retry;
}
} else {
- host = h_Alloc_r(tcon); /* returned held and locked */
- h_gethostcps_r(host,FT_ApproxTime());
- if (!(host->Console&1)) {
- if (!identP || !interfValid) {
- H_UNLOCK
- code = RXAFSCB_WhoAreYou(host->callback_rxcon, &interf);
- H_LOCK
- if ( code == RXGEN_OPCODE ) {
- identP = (struct Identity *)malloc(sizeof(struct Identity));
- if (!identP) {
- ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
- assert(0);
- }
- identP->valid = 0;
- rx_SetSpecific(tcon, rxcon_ident_key, identP);
- ViceLog(25,
- ("Host %s:%d does not support WhoAreYou.\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
- code = 0;
- } else if (code == 0) {
- interfValid = 1;
- identP = (struct Identity *)malloc(sizeof(struct Identity));
- if (!identP) {
- ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
- assert(0);
- }
- identP->valid = 1;
- identP->uuid = interf.uuid;
+ host = h_Alloc_r(tcon); /* returned held and locked */
+ h_gethostcps_r(host, FT_ApproxTime());
+ if (!(host->Console & 1)) {
+ int pident = 0;
+ cb_conn = host->callback_rxcon;
+ rx_GetConnection(cb_conn);
+ H_UNLOCK;
+ code =
+ RXAFSCB_TellMeAboutYourself(cb_conn, &interf, &caps);
+ if (code == RXGEN_OPCODE)
+ code = RXAFSCB_WhoAreYou(cb_conn, &interf);
+ rx_PutConnection(cb_conn);
+ cb_conn=NULL;
+ H_LOCK;
+ if (code == RXGEN_OPCODE) {
+ if (!identP)
+ identP =
+ (struct Identity *)malloc(sizeof(struct Identity));
+ else
+ pident = 1;
+
+ if (!identP) {
+ ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
+ assert(0);
+ }
+ identP->valid = 0;
+ if (!pident)
rx_SetSpecific(tcon, rxcon_ident_key, identP);
- ViceLog(25, ("WhoAreYou success on %s:%d\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
+ ViceLog(25,
+ ("Host %s:%d does not support WhoAreYou.\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
+ code = 0;
+ } else if (code == 0) {
+ if (!identP)
+ identP =
+ (struct Identity *)malloc(sizeof(struct Identity));
+ else
+ pident = 1;
+
+ if (!identP) {
+ ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
+ assert(0);
}
+ identP->valid = 1;
+ interfValid = 1;
+ identP->uuid = interf.uuid;
+ if (!pident)
+ rx_SetSpecific(tcon, rxcon_ident_key, identP);
+ ViceLog(25,
+ ("WhoAreYou success on %s:%d\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
}
if (code == 0 && !identP->valid) {
- H_UNLOCK
- code = RXAFSCB_InitCallBackState(host->callback_rxcon);
- H_LOCK
+ cb_conn = host->callback_rxcon;
+ rx_GetConnection(cb_conn);
+ H_UNLOCK;
+ code = RXAFSCB_InitCallBackState(cb_conn);
+ rx_PutConnection(cb_conn);
+ cb_conn=NULL;
+ H_LOCK;
} else if (code == 0) {
oldHost = h_LookupUuid_r(&identP->uuid);
+ if (oldHost) {
+ int probefail = 0;
+
+ if (!(oheld = h_Held_r(oldHost)))
+ h_Hold_r(oldHost);
+ h_Lock_r(oldHost);
+
+ if (oldHost->interface) {
+ afsUUID uuid = oldHost->interface->uuid;
+ cb_conn = oldHost->callback_rxcon;
+ rx_GetConnection(cb_conn);
+ rx_SetConnDeadTime(cb_conn, 2);
+ rx_SetConnHardDeadTime(cb_conn, AFS_HARDDEADTIME);
+ H_UNLOCK;
+ code = RXAFSCB_ProbeUuid(cb_conn, &uuid);
+ H_LOCK;
+ rx_SetConnDeadTime(cb_conn, 50);
+ rx_SetConnHardDeadTime(cb_conn, AFS_HARDDEADTIME);
+ rx_PutConnection(cb_conn);
+ cb_conn=NULL;
+ if (code && MultiProbeAlternateAddress_r(oldHost)) {
+ probefail = 1;
+ }
+ } else {
+ probefail = 1;
+ }
+
+ if (probefail) {
+ /* The old host is either does not have a Uuid,
+ * is not responding to Probes,
+ * or does not have a matching Uuid.
+ * Delete it! */
+ oldHost->hostFlags |= HOSTDELETED;
+ h_Unlock_r(oldHost);
+ /* Let the holder be last release */
+ if (!oheld) {
+ h_Release_r(oldHost);
+ }
+ oldHost = NULL;
+ }
+ }
if (oldHost) {
/* This is a new address for an existing host. Update
* the list of interfaces for the existing host and
* delete the host structure we just allocated. */
- if (!(held = h_Held_r(oldHost)))
- h_Hold_r(oldHost);
- h_Lock_r(oldHost);
- ViceLog(25, ("CB: new addr %s:%d for old host %s:%d\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port,
- afs_inet_ntoa_r(oldHost->host, hoststr2), oldHost->port));
+ if (oldHost->host != haddr || oldHost->port != hport) {
+ ViceLog(25,
+ ("CB: new addr %s:%d for old host %s:%d\n",
+ afs_inet_ntoa_r(haddr, hoststr),
+ ntohs(hport),
+ afs_inet_ntoa_r(oldHost->host, hoststr2),
+ ntohs(oldHost->port)));
+ if (oldHost->host == haddr) {
+ /* We have just been contacted by a client behind a NAT */
+ removeInterfaceAddr_r(oldHost, oldHost->host, oldHost->port);
+ } else {
+ int i, found;
+ struct Interface *interface = oldHost->interface;
+ int number = oldHost->interface->numberOfInterfaces;
+ for (i = 0, found = 0; i < number; i++) {
+ if (interface->interface[i].addr == haddr &&
+ interface->interface[i].port != hport) {
+ found = 1;
+ break;
+ }
+ }
+ if (found) {
+ /* We have just been contacted by a client that has been
+ * seen from behind a NAT and at least one other address.
+ */
+ removeInterfaceAddr_r(oldHost, haddr, interface->interface[i].port);
+ }
+ }
+ addInterfaceAddr_r(oldHost, haddr, hport);
+ oldHost->host = haddr;
+ oldHost->port = hport;
+ }
host->hostFlags |= HOSTDELETED;
h_Unlock_r(host);
+ /* release host because it was allocated by h_Alloc_r */
h_Release_r(host);
host = oldHost;
- addInterfaceAddr_r(host, haddr);
+ /* the new host is held and locked */
} else {
/* This really is a new host */
- hashInsertUuid_r(&identP->uuid, host);
- H_UNLOCK
- code = RXAFSCB_InitCallBackState3(host->callback_rxcon,
- &FS_HostUUID);
- H_LOCK
+ h_AddHostToUuidHashTable_r(&identP->uuid, host);
+ cb_conn = host->callback_rxcon;
+ rx_GetConnection(cb_conn);
+ H_UNLOCK;
+ code =
+ RXAFSCB_InitCallBackState3(cb_conn,
+ &FS_HostUUID);
+ rx_PutConnection(cb_conn);
+ cb_conn=NULL;
+ H_LOCK;
if (code == 0) {
- ViceLog(25, ("InitCallBackState3 success on %s:%d\n",
- afs_inet_ntoa_r(host->host, hoststr), host->port));
+ ViceLog(25,
+ ("InitCallBackState3 success on %s:%d\n",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port)));
assert(interfValid == 1);
initInterfaceAddr_r(host, &interf);
}
}
- }
- if (code) {
- afs_inet_ntoa_r(host->host, hoststr);
- ViceLog(0,("CB: RCallBackConnectBack failed for %s:%d\n",
- hoststr, ntohs(host->port)));
- host->hostFlags |= VENUSDOWN;
}
- else
+ if (code) {
+ afs_inet_ntoa_r(host->host, hoststr);
+ ViceLog(0,
+ ("CB: RCallBackConnectBack failed for %s:%d\n",
+ hoststr, ntohs(host->port)));
+ host->hostFlags |= VENUSDOWN;
+ } else {
+ ViceLog(125,
+ ("CB: RCallBackConnectBack succeeded for %s:%d\n",
+ hoststr, ntohs(host->port)));
host->hostFlags |= RESETDONE;
-
- }
- host->hostFlags |= ALTADDR;/* host structure iniatilisation complete */
+ }
+ }
+ if (caps.Capabilities_val
+ && (caps.Capabilities_val[0] & CLIENT_CAPABILITY_ERRORTRANS))
+ host->hostFlags |= HERRORTRANS;
+ else
+ host->hostFlags &= ~(HERRORTRANS);
+ host->hostFlags |= ALTADDR; /* host structure initialization complete */
h_Unlock_r(host);
}
+ if (caps.Capabilities_val)
+ free(caps.Capabilities_val);
+ caps.Capabilities_val = NULL;
+ caps.Capabilities_len = 0;
return host;
-} /*h_GetHost_r*/
+} /*h_GetHost_r */
-static char localcellname[PR_MAXNAMELEN+1];
-char local_realm[AFS_REALM_SZ] = "";
+static char localcellname[PR_MAXNAMELEN + 1];
+char local_realms[AFS_NUM_LREALMS][AFS_REALM_SZ];
+int num_lrealms = -1;
/* not reentrant */
-void h_InitHostPackage()
+void
+h_InitHostPackage()
{
- afsconf_GetLocalCell (confDir, localcellname, PR_MAXNAMELEN);
- if (!local_realm[0]) {
- if (afs_krb_get_lrealm(local_realm, 0) != 0/*KSUCCESS*/) {
- ViceLog(0, ("afs_krb_get_lrealm failed, using %s.\n",localcellname));
- strcpy (local_realm, localcellname);
+ afsconf_GetLocalCell(confDir, localcellname, PR_MAXNAMELEN);
+ if (num_lrealms == -1) {
+ int i;
+ for (i=0; i<AFS_NUM_LREALMS; i++) {
+ if (afs_krb_get_lrealm(local_realms[i], i) != 0 /*KSUCCESS*/)
+ break;
+ }
+
+ if (i=0) {
+ ViceLog(0,
+ ("afs_krb_get_lrealm failed, using %s.\n",
+ localcellname));
+ strncpy(local_realms[0], localcellname, AFS_REALM_SZ);
+ num_lrealms = i =1;
+ } else {
+ num_lrealms = i;
}
+
+ /* initialize the rest of the local realms to nullstring for debugging */
+ for (; i<AFS_NUM_LREALMS; i++)
+ local_realms[i][0] = '\0';
}
- rxcon_ident_key = rx_KeyCreate((rx_destructor_t)free);
- rxcon_client_key = rx_KeyCreate((rx_destructor_t)0);
+ rxcon_ident_key = rx_KeyCreate((rx_destructor_t) free);
+ rxcon_client_key = rx_KeyCreate((rx_destructor_t) 0);
#ifdef AFS_PTHREAD_ENV
assert(pthread_mutex_init(&host_glock_mutex, NULL) == 0);
#endif /* AFS_PTHREAD_ENV */
}
-static int MapName_r(char *aname, char *acell, afs_int32 *aval)
+static int
+MapName_r(char *aname, char *acell, afs_int32 * aval)
{
namelist lnames;
idlist lids;
int foreign = 0;
char *tname;
- anamelen=strlen(aname);
+ anamelen = strlen(aname);
if (anamelen >= PR_MAXNAMELEN)
- return -1; /* bad name -- caller interprets this as anonymous, but retries later */
+ return -1; /* bad name -- caller interprets this as anonymous, but retries later */
lnames.namelist_len = 1;
- lnames.namelist_val = (prname *) aname; /* don't malloc in the common case */
+ lnames.namelist_val = (prname *) aname; /* don't malloc in the common case */
lids.idlist_len = 0;
lids.idlist_val = NULL;
- cnamelen=strlen(acell);
+ cnamelen = strlen(acell);
if (cnamelen) {
- if (strcasecmp(local_realm, acell) && strcasecmp(localcellname, acell)) {
- ViceLog(2, ("MapName: cell is foreign. cell=%s, localcell=%s, localrealm=%s\n",
- acell, localcellname, local_realm));
- if ((anamelen+cnamelen+1) >= PR_MAXNAMELEN) {
- ViceLog(2, ("MapName: Name too long, using AnonymousID for %s@%s\n",
- aname, acell));
+ if (afs_is_foreign_ticket_name(aname, NULL, acell, localcellname)) {
+ ViceLog(2,
+ ("MapName: cell is foreign. cell=%s, localcell=%s, localrealms={%s,%s,%s,%s}\n",
+ acell, localcellname, local_realms[0],local_realms[1],local_realms[2],local_realms[3]));
+ if ((anamelen + cnamelen + 1) >= PR_MAXNAMELEN) {
+ ViceLog(2,
+ ("MapName: Name too long, using AnonymousID for %s@%s\n",
+ aname, acell));
*aval = AnonymousID;
return 0;
- }
- foreign = 1; /* attempt cross-cell authentication */
- tname = (char *) malloc(anamelen+cnamelen+2);
+ }
+ foreign = 1; /* attempt cross-cell authentication */
+ tname = (char *)malloc(PR_MAXNAMELEN);
if (!tname) {
ViceLog(0, ("Failed malloc in MapName_r\n"));
assert(0);
}
strcpy(tname, aname);
tname[anamelen] = '@';
- strcpy(tname+anamelen+1, acell);
+ strcpy(tname + anamelen + 1, acell);
lnames.namelist_val = (prname *) tname;
}
}
- H_UNLOCK
- code = pr_NameToId(&lnames, &lids);
- H_LOCK
+ H_UNLOCK;
+ code = pr_NameToId(&lnames, &lids);
+ H_LOCK;
if (code == 0) {
- if (lids.idlist_val) {
- *aval = lids.idlist_val[0];
- if (*aval == AnonymousID) {
- ViceLog(2, ("MapName: NameToId on %s returns anonymousID\n", lnames.namelist_val));
- }
- free(lids.idlist_val); /* return parms are not malloced in stub if server proc aborts */
- } else {
- ViceLog(0, ("MapName: NameToId on '%s' is unknown\n", lnames.namelist_val));
- code = -1;
- }
+ if (lids.idlist_val) {
+ *aval = lids.idlist_val[0];
+ if (*aval == AnonymousID) {
+ ViceLog(2,
+ ("MapName: NameToId on %s returns anonymousID\n",
+ lnames.namelist_val));
+ }
+ free(lids.idlist_val); /* return parms are not malloced in stub if server proc aborts */
+ } else {
+ ViceLog(0,
+ ("MapName: NameToId on '%s' is unknown\n",
+ lnames.namelist_val));
+ code = -1;
+ }
}
if (foreign) {
- free(lnames.namelist_val); /* We allocated this above, so we must free it now. */
+ free(lnames.namelist_val); /* We allocated this above, so we must free it now. */
}
return code;
}
+
/*MapName*/
-/* NOTE: this returns the client with a Shared lock */
-struct client *h_ID2Client(afs_int32 vid)
+/* NOTE: this returns the client with a Write lock and a refCount */
+struct client *
+h_ID2Client(afs_int32 vid)
{
register struct client *client;
register struct host *host;
- H_LOCK
-
- for (host=hostList; host; host=host->next) {
- if (host->hostFlags & HOSTDELETED)
- continue;
+ H_LOCK;
+ for (host = hostList; host; host = host->next) {
+ if (host->hostFlags & HOSTDELETED)
+ continue;
for (client = host->FirstClient; client; client = client->next) {
- if (!client->deleted && client->ViceId == vid) {
- client->refCount++;
- H_UNLOCK
- ObtainSharedLock(&client->lock);
- H_LOCK
- client->refCount--;
- H_UNLOCK
- return client;
- }
+ if (!client->deleted && client->ViceId == vid) {
+ client->refCount++;
+ H_UNLOCK;
+ ObtainWriteLock(&client->lock);
+ return client;
+ }
}
- }
+ }
- H_UNLOCK
- return 0;
+ H_UNLOCK;
+ return NULL;
}
/*
* isn't around. The client is returned with its reference count incremented
* by one. The caller must call h_ReleaseClient_r when finished with
* the client.
+ *
+ * the client->host is returned held. h_ReleaseClient_r does not release
+ * the hold on client->host.
*/
-struct client *h_FindClient_r(struct rx_connection *tcon)
+struct client *
+h_FindClient_r(struct rx_connection *tcon)
{
register struct client *client;
register struct host *host;
afs_int32 code;
int authClass;
#if (64-MAXKTCNAMELEN)
-ticket name length != 64
+ ticket name length != 64
#endif
char tname[64];
char tinst[64];
char uname[PR_MAXNAMELEN];
char tcell[MAXKTCREALMLEN];
int fail = 0;
+ int created = 0;
- client = (struct client *) rx_GetSpecific(tcon, rxcon_client_key);
- if (client && !client->deleted) {
- client->refCount++;
- h_Hold_r(client->host);
- if (client->prfail != 2) { /* Could add shared lock on client here */
- /* note that we don't have to lock entry in this path to
- * ensure CPS is initialized, since we don't call rxr_SetSpecific
- * until initialization is done, and we only get here if
- * rx_GetSpecific located the client structure.
- */
- return client;
- }
- H_UNLOCK
- ObtainWriteLock(&client->lock); /* released at end */
- H_LOCK
- } else if (client) {
- client->refCount++;
+ client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
+ if (client) {
+ client->refCount++;
+ h_Hold_r(client->host);
+ if (!client->deleted && client->prfail != 2) {
+ /* Could add shared lock on client here */
+ /* note that we don't have to lock entry in this path to
+ * ensure CPS is initialized, since we don't call rx_SetSpecific
+ * until initialization is done, and we only get here if
+ * rx_GetSpecific located the client structure.
+ */
+ return client;
+ }
+ H_UNLOCK;
+ ObtainWriteLock(&client->lock); /* released at end */
+ H_LOCK;
}
authClass = rx_SecurityClassOf((struct rx_connection *)tcon);
- ViceLog(5,("FindClient: authenticating connection: authClass=%d\n",
- authClass));
+ ViceLog(5,
+ ("FindClient: authenticating connection: authClass=%d\n",
+ authClass));
if (authClass == 1) {
- /* A bcrypt tickets, no longer supported */
- ViceLog(1, ("FindClient: bcrypt ticket, using AnonymousID\n"));
- viceid = AnonymousID;
- expTime = 0x7fffffff;
+ /* A bcrypt tickets, no longer supported */
+ ViceLog(1, ("FindClient: bcrypt ticket, using AnonymousID\n"));
+ viceid = AnonymousID;
+ expTime = 0x7fffffff;
} else if (authClass == 2) {
- afs_int32 kvno;
+ afs_int32 kvno;
- /* kerberos ticket */
- code = rxkad_GetServerInfo (tcon, /*level*/0, &expTime,
+ /* kerberos ticket */
+ code = rxkad_GetServerInfo(tcon, /*level */ 0, &expTime,
tname, tinst, tcell, &kvno);
- if (code) {
- ViceLog(1, ("Failed to get rxkad ticket info\n"));
- viceid = AnonymousID;
- expTime = 0x7fffffff;
- } else {
- int ilen = strlen(tinst);
- ViceLog(5,
- ("FindClient: rxkad conn: name=%s,inst=%s,cell=%s,exp=%d,kvno=%d\n",
- tname, tinst, tcell, expTime, kvno));
- strncpy (uname, tname, sizeof(uname));
- if (ilen) {
- if (strlen(uname) + 1 + ilen >= sizeof(uname))
- goto bad_name;
- strcat (uname, ".");
- strcat (uname, tinst);
- }
- /* translate the name to a vice id */
- code = MapName_r(uname, tcell, &viceid);
- if (code) {
- bad_name:
- ViceLog(1, ("failed to map name=%s, cell=%s -> code=%d\n",
- uname, tcell, code));
- fail = 1;
- viceid = AnonymousID;
- expTime = 0x7fffffff;
- }
- }
+ if (code) {
+ ViceLog(1, ("Failed to get rxkad ticket info\n"));
+ viceid = AnonymousID;
+ expTime = 0x7fffffff;
+ } else {
+ int ilen = strlen(tinst);
+ ViceLog(5,
+ ("FindClient: rxkad conn: name=%s,inst=%s,cell=%s,exp=%d,kvno=%d\n",
+ tname, tinst, tcell, expTime, kvno));
+ strncpy(uname, tname, sizeof(uname));
+ if (ilen) {
+ if (strlen(uname) + 1 + ilen >= sizeof(uname))
+ goto bad_name;
+ strcat(uname, ".");
+ strcat(uname, tinst);
+ }
+ /* translate the name to a vice id */
+ code = MapName_r(uname, tcell, &viceid);
+ if (code) {
+ bad_name:
+ ViceLog(1,
+ ("failed to map name=%s, cell=%s -> code=%d\n", uname,
+ tcell, code));
+ fail = 1;
+ viceid = AnonymousID;
+ expTime = 0x7fffffff;
+ }
+ }
} else {
- viceid = AnonymousID; /* unknown security class */
- expTime = 0x7fffffff;
- }
-
- if (!client) {
- host = h_GetHost_r(tcon); /* Returns it h_Held */
-
- /* First try to find the client structure */
- for (client = host->FirstClient; client; client = client->next) {
- if (!client->deleted && (client->sid == rxr_CidOf(tcon)) &&
- (client->VenusEpoch == rxr_GetEpoch(tcon))) {
- if (client->tcon && (client->tcon != tcon)) {
- ViceLog(0, ("*** Vid=%d, sid=%x, tcon=%x, Tcon=%x ***\n",
- client->ViceId, client->sid, client->tcon, tcon));
- client->tcon = (struct rx_connection *)0;
- }
- client->refCount++;
- H_UNLOCK
- ObtainWriteLock(&client->lock);
- H_LOCK
- break;
- }
- }
-
- /* Still no client structure - get one */
- if (!client) {
- client = GetCE();
- ObtainWriteLock(&client->lock);
- client->host = host;
- client->next = host->FirstClient;
- host->FirstClient = client;
+ viceid = AnonymousID; /* unknown security class */
+ expTime = 0x7fffffff;
+ }
+
+ if (!client) { /* loop */
+ host = h_GetHost_r(tcon); /* Returns it h_Held */
+
+ retryfirstclient:
+ /* First try to find the client structure */
+ for (client = host->FirstClient; client; client = client->next) {
+ if (!client->deleted && (client->sid == rxr_CidOf(tcon))
+ && (client->VenusEpoch == rxr_GetEpoch(tcon))) {
+ if (client->tcon && (client->tcon != tcon)) {
+ ViceLog(0,
+ ("*** Vid=%d, sid=%x, tcon=%x, Tcon=%x ***\n",
+ client->ViceId, client->sid, client->tcon,
+ tcon));
+ oldClient =
+ (struct client *)rx_GetSpecific(client->tcon,
+ rxcon_client_key);
+ if (oldClient) {
+ if (oldClient == client) {
+ rx_SetSpecific(client->tcon, rxcon_client_key,
+ NULL);
+ } else
+ ViceLog(0,
+ ("Client-conn mismatch: CL1=%x, CN=%x, CL2=%x\n",
+ client, client->tcon, oldClient));
+ }
+ rx_PutConnection(client->tcon);
+ client->tcon = (struct rx_connection *)0;
+ }
+ client->refCount++;
+ H_UNLOCK;
+ ObtainWriteLock(&client->lock);
+ H_LOCK;
+ break;
+ }
+ }
+
+ /* Still no client structure - get one */
+ if (!client) {
+ h_Lock_r(host);
+ /* Retry to find the client structure */
+ for (client = host->FirstClient; client; client = client->next) {
+ if (!client->deleted && (client->sid == rxr_CidOf(tcon))
+ && (client->VenusEpoch == rxr_GetEpoch(tcon))) {
+ h_Unlock_r(host);
+ goto retryfirstclient;
+ }
+ }
+ created = 1;
+ client = GetCE();
+ ObtainWriteLock(&client->lock);
+ client->refCount = 1;
+ client->host = host;
#if FS_STATS_DETAILED
- client->InSameNetwork = host->InSameNetwork;
+ client->InSameNetwork = host->InSameNetwork;
#endif /* FS_STATS_DETAILED */
- client->ViceId = viceid;
- client->expTime = expTime; /* rx only */
- client->authClass = authClass; /* rx only */
- client->sid = rxr_CidOf(tcon);
- client->VenusEpoch = rxr_GetEpoch(tcon);
- client->CPS.prlist_val = 0;
- client->refCount = 1;
- CurrentConnections++; /* increment number of connections */
- }
+ client->ViceId = viceid;
+ client->expTime = expTime; /* rx only */
+ client->authClass = authClass; /* rx only */
+ client->sid = rxr_CidOf(tcon);
+ client->VenusEpoch = rxr_GetEpoch(tcon);
+ client->CPS.prlist_val = NULL;
+ client->CPS.prlist_len = 0;
+ h_Unlock_r(host);
+ }
}
client->prfail = fail;
if (!(client->CPS.prlist_val) || (viceid != client->ViceId)) {
- if (client->CPS.prlist_val && (client->ViceId != ANONYMOUSID)) {
- free(client->CPS.prlist_val);
- }
+ client->CPS.prlist_len = 0;
+ if (client->CPS.prlist_val && (client->ViceId != ANONYMOUSID))
+ free(client->CPS.prlist_val);
client->CPS.prlist_val = NULL;
- client->ViceId = viceid;
- client->expTime = expTime;
+ client->ViceId = viceid;
+ client->expTime = expTime;
if (viceid == ANONYMOUSID) {
- client->CPS.prlist_len = AnonCPS.prlist_len;
- client->CPS.prlist_val = AnonCPS.prlist_val;
+ client->CPS.prlist_len = AnonCPS.prlist_len;
+ client->CPS.prlist_val = AnonCPS.prlist_val;
} else {
- H_UNLOCK
- code = pr_GetCPS(viceid, &client->CPS);
- H_LOCK
- if (code) {
- char hoststr[16];
- ViceLog(0, ("pr_GetCPS failed(%d) for user %d, host %s:%d\n",
- code, viceid,
- afs_inet_ntoa_r(client->host->host, hoststr),
- client->host->port));
-
- /* Although ubik_Call (called by pr_GetCPS) traverses thru
- * all protection servers and reevaluates things if no
- * sync server or quorum is found we could still end up
- * with one of these errors. In such case we would like to
- * reevaluate the rpc call to find if there's cps for this
- * guy. We treat other errors (except network failures
- * ones - i.e. code < 0) as an indication that there is no
- * CPS for this host. Ideally we could like to deal this
- * problem the other way around (i.e. if code == NOCPS
- * ignore else retry next time) but the problem is that
- * there're other errors (i.e. EPERM) for which we don't
- * want to retry and we don't know the whole code list!
- */
- if (code < 0 || code == UNOQUORUM || code == UNOTSYNC)
- client->prfail = 1;
- }
+ H_UNLOCK;
+ code = pr_GetCPS(viceid, &client->CPS);
+ H_LOCK;
+ if (code) {
+ char hoststr[16];
+ ViceLog(0,
+ ("pr_GetCPS failed(%d) for user %d, host %s:%d\n",
+ code, viceid, afs_inet_ntoa_r(client->host->host,
+ hoststr),
+ ntohs(client->host->port)));
+
+ /* Although ubik_Call (called by pr_GetCPS) traverses thru
+ * all protection servers and reevaluates things if no
+ * sync server or quorum is found we could still end up
+ * with one of these errors. In such case we would like to
+ * reevaluate the rpc call to find if there's cps for this
+ * guy. We treat other errors (except network failures
+ * ones - i.e. code < 0) as an indication that there is no
+ * CPS for this host. Ideally we could like to deal this
+ * problem the other way around (i.e. if code == NOCPS
+ * ignore else retry next time) but the problem is that
+ * there're other errors (i.e. EPERM) for which we don't
+ * want to retry and we don't know the whole code list!
+ */
+ if (code < 0 || code == UNOQUORUM || code == UNOTSYNC)
+ client->prfail = 1;
+ }
}
/* the disabling of system:administrators is so iffy and has so many
* possible failure modes that we will disable it again */
/* Turn off System:Administrator for safety
- if (AL_IsAMember(SystemId, client->CPS) == 0)
- assert(AL_DisableGroup(SystemId, client->CPS) == 0); */
+ * if (AL_IsAMember(SystemId, client->CPS) == 0)
+ * assert(AL_DisableGroup(SystemId, client->CPS) == 0); */
}
/* Now, tcon may already be set to a rock, since we blocked with no host
* required). So, before setting the RPC's rock, we should disconnect
* the RPC from the other client structure's rock.
*/
- if ((oldClient = (struct client *) rx_GetSpecific(tcon, rxcon_client_key))) {
- oldClient->tcon = (struct rx_connection *) 0;
- /* rx_SetSpecific will be done immediately below */
+ oldClient = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
+ if (oldClient && oldClient->tcon == tcon) {
+ char hoststr[16];
+ if (!oldClient->deleted) {
+ /* if we didn't create it, it's not ours to put back */
+ if (created) {
+ ViceLog(0, ("FindClient: stillborn client %x(%x); conn %x (host %s:%d) had client %x(%x)\n",
+ client, client->sid, tcon,
+ afs_inet_ntoa_r(rxr_HostOf(tcon), hoststr),
+ ntohs(rxr_PortOf(tcon)),
+ oldClient, oldClient->sid));
+ if ((client->ViceId != ANONYMOUSID) && client->CPS.prlist_val)
+ free(client->CPS.prlist_val);
+ client->CPS.prlist_val = NULL;
+ client->CPS.prlist_len = 0;
+ if (client->tcon) {
+ rx_SetSpecific(client->tcon, rxcon_client_key, (void *)0);
+ }
+ }
+ /* We should perhaps check for 0 here */
+ client->refCount--;
+ ReleaseWriteLock(&client->lock);
+ if (created) {
+ FreeCE(client);
+ created = 0;
+ }
+ ObtainWriteLock(&oldClient->lock);
+ oldClient->refCount++;
+ client = oldClient;
+ } else {
+ rx_PutConnection(oldClient->tcon);
+ oldClient->tcon = (struct rx_connection *)0;
+ ViceLog(0, ("FindClient: deleted client %x(%x) already had conn %x (host %s:%d), stolen by client %x(%x)\n",
+ oldClient, oldClient->sid, tcon,
+ afs_inet_ntoa_r(rxr_HostOf(tcon), hoststr),
+ ntohs(rxr_PortOf(tcon)),
+ client, client->sid));
+ /* rx_SetSpecific will be done immediately below */
+ }
+ }
+ /* Avoid chaining in more than once. */
+ if (created) {
+ h_Lock_r(host);
+ client->next = host->FirstClient;
+ host->FirstClient = client;
+ h_Unlock_r(host);
+ CurrentConnections++; /* increment number of connections */
}
+ rx_GetConnection(tcon);
client->tcon = tcon;
rx_SetSpecific(tcon, rxcon_client_key, client);
ReleaseWriteLock(&client->lock);
return client;
-} /*h_FindClient_r*/
+} /*h_FindClient_r */
-int h_ReleaseClient_r(struct client *client)
+int
+h_ReleaseClient_r(struct client *client)
{
assert(client->refCount > 0);
client->refCount--;
* It does check tokens, since only the server routines can return the
* VICETOKENDEAD error code
*/
-int GetClient(struct rx_connection * tcon, struct client **cp)
+int
+GetClient(struct rx_connection *tcon, struct client **cp)
{
register struct client *client;
- H_LOCK
-
- *cp = client = (struct client *) rx_GetSpecific(tcon, rxcon_client_key);
+ H_LOCK;
+ *cp = NULL;
+ client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
+ if (client == NULL || client->tcon == NULL) {
+ ViceLog(0,
+ ("GetClient: no client in conn %x (host %x:%d), VBUSYING\n",
+ tcon, rxr_HostOf(tcon),ntohs(rxr_PortOf(tcon))));
+ H_UNLOCK;
+ return VBUSY;
+ }
+ if (rxr_CidOf(client->tcon) != client->sid) {
+ ViceLog(0,
+ ("GetClient: tcon %x tcon sid %d client sid %d\n",
+ client->tcon, rxr_CidOf(client->tcon), client->sid));
+ H_UNLOCK;
+ return VBUSY;
+ }
if (!(client && client->tcon && rxr_CidOf(client->tcon) == client->sid)) {
if (!client)
ViceLog(0, ("GetClient: no client in conn %x\n", tcon));
else
- ViceLog(0, ("GetClient: tcon %x tcon sid %d client sid %d\n",
- client->tcon, client->tcon ? rxr_CidOf(client->tcon)
- : -1, client->sid));
+ ViceLog(0,
+ ("GetClient: tcon %x tcon sid %d client sid %d\n",
+ client->tcon, client->tcon ? rxr_CidOf(client->tcon)
+ : -1, client->sid));
assert(0);
}
- if (client &&
- client->LastCall > client->expTime && client->expTime) {
+ if (client && client->LastCall > client->expTime && client->expTime) {
char hoststr[16];
- ViceLog(1, ("Token for %s at %s:%d expired %d\n",
- h_UserName(client),
- afs_inet_ntoa_r(client->host->host, hoststr),
- client->host->port, client->expTime));
- H_UNLOCK
+ ViceLog(1,
+ ("Token for %s at %s:%d expired %d\n", h_UserName(client),
+ afs_inet_ntoa_r(client->host->host, hoststr),
+ ntohs(client->host->port), client->expTime));
+ H_UNLOCK;
return VICETOKENDEAD;
}
- H_UNLOCK
+ client->refCount++;
+ *cp = client;
+ H_UNLOCK;
return 0;
+} /*GetClient */
+
+int
+PutClient(struct client **cp)
+{
+ if (*cp == NULL)
+ return -1;
-} /*GetClient*/
+ H_LOCK;
+ h_ReleaseClient_r(*cp);
+ *cp = NULL;
+ H_UNLOCK;
+ return 0;
+} /*PutClient */
/* Client user name for short term use. Note that this is NOT inexpensive */
-char *h_UserName(struct client *client)
+char *
+h_UserName(struct client *client)
{
- static char User[PR_MAXNAMELEN+1];
+ static char User[PR_MAXNAMELEN + 1];
namelist lnames;
idlist lids;
lids.idlist_len = 1;
- lids.idlist_val = (afs_int32 *)malloc(1*sizeof(afs_int32));
+ lids.idlist_val = (afs_int32 *) malloc(1 * sizeof(afs_int32));
if (!lids.idlist_val) {
ViceLog(0, ("Failed malloc in h_UserName\n"));
assert(0);
}
lnames.namelist_len = 0;
- lnames.namelist_val = (prname *)0;
+ lnames.namelist_val = (prname *) 0;
lids.idlist_val[0] = client->ViceId;
- if (pr_IdToName(&lids,&lnames)) {
+ if (pr_IdToName(&lids, &lnames)) {
/* We need to free id we alloced above! */
free(lids.idlist_val);
return "*UNKNOWN USER NAME*";
}
- strncpy(User,lnames.namelist_val[0],PR_MAXNAMELEN);
+ strncpy(User, lnames.namelist_val[0], PR_MAXNAMELEN);
free(lids.idlist_val);
free(lnames.namelist_val);
return User;
-} /*h_UserName*/
+} /*h_UserName */
-void h_PrintStats()
+void
+h_PrintStats()
{
ViceLog(0,
("Total Client entries = %d, blocks = %d; Host entries = %d, blocks = %d\n",
- CEs, CEBlocks, HTs, HTBlocks));
+ CEs, CEBlocks, HTs, HTBlocks));
-} /*h_PrintStats*/
+} /*h_PrintStats */
-static int
-h_PrintClient(register struct host *host, int held, StreamHandle_t *file)
+static int
+h_PrintClient(register struct host *host, int held, StreamHandle_t * file)
{
register struct client *client;
int i;
char tmpStr[256];
char tbuffer[32];
char hoststr[16];
+ time_t LastCall, expTime;
- H_LOCK
+ H_LOCK;
+ LastCall = host->LastCall;
if (host->hostFlags & HOSTDELETED) {
- H_UNLOCK
+ H_UNLOCK;
return held;
}
- sprintf(tmpStr,"Host %s:%d down = %d, LastCall %s",
- afs_inet_ntoa_r(host->host, hoststr), host->port,
- (host->hostFlags & VENUSDOWN),
- afs_ctime((time_t *)&host->LastCall, tbuffer, sizeof(tbuffer)));
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
- for (client = host->FirstClient; client; client=client->next) {
+ (void)afs_snprintf(tmpStr, sizeof tmpStr,
+ "Host %s:%d down = %d, LastCall %s",
+ afs_inet_ntoa_r(host->host, hoststr),
+ ntohs(host->port), (host->hostFlags & VENUSDOWN),
+ afs_ctime(&LastCall, tbuffer,
+ sizeof(tbuffer)));
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ for (client = host->FirstClient; client; client = client->next) {
if (!client->deleted) {
if (client->tcon) {
- sprintf(tmpStr, " user id=%d, name=%s, sl=%s till %s",
- client->ViceId, h_UserName(client),
- client->authClass ? "Authenticated" : "Not authenticated",
- client->authClass ?
- afs_ctime((time_t *)&client->expTime, tbuffer, sizeof(tbuffer))
- : "No Limit\n");
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
- }
- else {
- sprintf(tmpStr, " user=%s, no current server connection\n",
- h_UserName(client));
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ expTime = client->expTime;
+ (void)afs_snprintf(tmpStr, sizeof tmpStr,
+ " user id=%d, name=%s, sl=%s till %s",
+ client->ViceId, h_UserName(client),
+ client->
+ authClass ? "Authenticated" :
+ "Not authenticated",
+ client->
+ authClass ? afs_ctime(&expTime, tbuffer,
+ sizeof(tbuffer))
+ : "No Limit\n");
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ } else {
+ (void)afs_snprintf(tmpStr, sizeof tmpStr,
+ " user=%s, no current server connection\n",
+ h_UserName(client));
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
}
- sprintf(tmpStr, " CPS-%d is [", client->CPS.prlist_len);
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ (void)afs_snprintf(tmpStr, sizeof tmpStr, " CPS-%d is [",
+ client->CPS.prlist_len);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
if (client->CPS.prlist_val) {
- for (i=0; i > client->CPS.prlist_len; i++) {
- sprintf(tmpStr, " %d", client->CPS.prlist_val[i]);
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ for (i = 0; i > client->CPS.prlist_len; i++) {
+ (void)afs_snprintf(tmpStr, sizeof tmpStr, " %d",
+ client->CPS.prlist_val[i]);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
}
}
- sprintf(tmpStr, "]\n");
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ sprintf(tmpStr, "]\n");
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
}
}
- H_UNLOCK
+ H_UNLOCK;
return held;
-} /*h_PrintClient*/
+} /*h_PrintClient */
* Print a list of clients, with last security level and token value seen,
* if known
*/
-void h_PrintClients()
+void
+h_PrintClients()
{
time_t now;
char tmpStr[256];
StreamHandle_t *file = STREAM_OPEN(AFSDIR_SERVER_CLNTDUMP_FILEPATH, "w");
if (file == NULL) {
- ViceLog(0, ("Couldn't create client dump file %s\n", AFSDIR_SERVER_CLNTDUMP_FILEPATH));
+ ViceLog(0,
+ ("Couldn't create client dump file %s\n",
+ AFSDIR_SERVER_CLNTDUMP_FILEPATH));
return;
}
now = FT_ApproxTime();
- sprintf(tmpStr, "List of active users at %s\n",
- afs_ctime(&now, tbuffer, sizeof(tbuffer)));
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ (void)afs_snprintf(tmpStr, sizeof tmpStr, "List of active users at %s\n",
+ afs_ctime(&now, tbuffer, sizeof(tbuffer)));
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
h_Enumerate(h_PrintClient, (char *)file);
STREAM_REALLYCLOSE(file);
ViceLog(0, ("Created client dump %s\n", AFSDIR_SERVER_CLNTDUMP_FILEPATH));
-static int
-h_DumpHost(register struct host *host, int held, StreamHandle_t *file)
+static int
+h_DumpHost(register struct host *host, int held, StreamHandle_t * file)
{
int i;
char tmpStr[256];
+ char hoststr[16];
- H_LOCK
- sprintf(tmpStr, "ip:%x port:%d hidx:%d cbid:%d lock:%x last:%u active:%u down:%d del:%d cons:%d cldel:%d\n\t hpfailed:%d hcpsCall:%u hcps [",
- host->host, host->port, host->index, host->cblist,
- CheckLock(&host->lock), host->LastCall, host->ActiveCall,
- (host->hostFlags & VENUSDOWN), host->hostFlags&HOSTDELETED,
- host->Console, host->hostFlags & CLIENTDELETED,
- host->hcpsfailed, host->cpsCall);
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ H_LOCK;
+ (void)afs_snprintf(tmpStr, sizeof tmpStr,
+ "ip:%s port:%d hidx:%d cbid:%d lock:%x last:%u active:%u down:%d del:%d cons:%d cldel:%d\n\t hpfailed:%d hcpsCall:%u hcps [",
+ afs_inet_ntoa_r(host->host, hoststr), ntohs(host->port), host->index,
+ host->cblist, CheckLock(&host->lock), host->LastCall,
+ host->ActiveCall, (host->hostFlags & VENUSDOWN),
+ host->hostFlags & HOSTDELETED, host->Console,
+ host->hostFlags & CLIENTDELETED, host->hcpsfailed,
+ host->cpsCall);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
if (host->hcps.prlist_val)
- for (i=0; i < host->hcps.prlist_len; i++) {
- sprintf(tmpStr, " %d", host->hcps.prlist_val[i]);
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ for (i = 0; i < host->hcps.prlist_len; i++) {
+ (void)afs_snprintf(tmpStr, sizeof tmpStr, " %d",
+ host->hcps.prlist_val[i]);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
}
sprintf(tmpStr, "] [");
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
- if ( host->interface)
- for (i=0; i < host->interface->numberOfInterfaces; i++) {
- sprintf(tmpStr, " %x", host->interface->addr[i]);
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ if (host->interface)
+ for (i = 0; i < host->interface->numberOfInterfaces; i++) {
+ char hoststr[16];
+ sprintf(tmpStr, " %s:%d",
+ afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr),
+ ntohs(host->interface->interface[i].port));
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
}
sprintf(tmpStr, "] holds: ");
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
- for (i = 0 ; i < h_maxSlots ; i++) {
- sprintf(tmpStr, "%04x", host->holds[i]);
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ for (i = 0; i < h_maxSlots; i++) {
+ sprintf(tmpStr, "%04x", host->holds[i]);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
}
sprintf(tmpStr, " slot/bit: %d/%d\n", h_holdSlot(), h_holdbit());
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
- H_UNLOCK
+ H_UNLOCK;
return held;
-} /*h_DumpHost*/
+} /*h_DumpHost */
-void h_DumpHosts()
+void
+h_DumpHosts()
{
time_t now;
StreamHandle_t *file = STREAM_OPEN(AFSDIR_SERVER_HOSTDUMP_FILEPATH, "w");
char tbuffer[32];
if (file == NULL) {
- ViceLog(0, ("Couldn't create host dump file %s\n", AFSDIR_SERVER_HOSTDUMP_FILEPATH));
+ ViceLog(0,
+ ("Couldn't create host dump file %s\n",
+ AFSDIR_SERVER_HOSTDUMP_FILEPATH));
return;
}
now = FT_ApproxTime();
- sprintf(tmpStr, "List of active hosts at %s\n",
- afs_ctime(&now, tbuffer, sizeof(tbuffer)));
- STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
- h_Enumerate(h_DumpHost, (char *) file);
+ (void)afs_snprintf(tmpStr, sizeof tmpStr, "List of active hosts at %s\n",
+ afs_ctime(&now, tbuffer, sizeof(tbuffer)));
+ (void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
+ h_Enumerate(h_DumpHost, (char *)file);
STREAM_REALLYCLOSE(file);
ViceLog(0, ("Created host dump %s\n", AFSDIR_SERVER_HOSTDUMP_FILEPATH));
-} /*h_DumpHosts*/
+} /*h_DumpHosts */
+
+#ifdef AFS_DEMAND_ATTACH_FS
+/*
+ * demand attach fs
+ * host state serialization
+ */
+static int h_stateFillHeader(struct host_state_header * hdr);
+static int h_stateCheckHeader(struct host_state_header * hdr);
+static int h_stateAllocMap(struct fs_dump_state * state);
+static int h_stateSaveHost(register struct host * host, int held, struct fs_dump_state * state);
+static int h_stateRestoreHost(struct fs_dump_state * state);
+static int h_stateRestoreIndex(struct host * h, int held, struct fs_dump_state * state);
+static int h_stateVerifyHost(struct host * h, int held, struct fs_dump_state * state);
+static int h_stateVerifyAddrHash(struct fs_dump_state * state, struct host * h, afs_uint32 addr, afs_uint16 port);
+static int h_stateVerifyUuidHash(struct fs_dump_state * state, struct host * h);
+static void h_hostToDiskEntry_r(struct host * in, struct hostDiskEntry * out);
+static void h_diskEntryToHost_r(struct hostDiskEntry * in, struct host * out);
+
+
+/* this procedure saves all host state to disk for fast startup */
+int
+h_stateSave(struct fs_dump_state * state)
+{
+ AssignInt64(state->eof_offset, &state->hdr->h_offset);
+
+ /* XXX debug */
+ ViceLog(0, ("h_stateSave: hostCount=%d\n", hostCount));
+
+ /* invalidate host state header */
+ memset(state->h_hdr, 0, sizeof(struct host_state_header));
+
+ if (fs_stateWriteHeader(state, &state->hdr->h_offset, state->h_hdr,
+ sizeof(struct host_state_header))) {
+ state->bail = 1;
+ goto done;
+ }
+
+ fs_stateIncEOF(state, sizeof(struct host_state_header));
+
+ h_Enumerate_r(h_stateSaveHost, hostList, (char *)state);
+ if (state->bail) {
+ goto done;
+ }
+
+ h_stateFillHeader(state->h_hdr);
+
+ /* write the real header to disk */
+ state->bail = fs_stateWriteHeader(state, &state->hdr->h_offset, state->h_hdr,
+ sizeof(struct host_state_header));
+
+ done:
+ return state->bail;
+}
+
+/* demand attach fs
+ * host state serialization
+ *
+ * this procedure restores all host state from a disk for fast startup
+ */
+int
+h_stateRestore(struct fs_dump_state * state)
+{
+ int i, records;
+
+ /* seek to the right position and read in the host state header */
+ if (fs_stateReadHeader(state, &state->hdr->h_offset, state->h_hdr,
+ sizeof(struct host_state_header))) {
+ state->bail = 1;
+ goto done;
+ }
+
+ /* check the validity of the header */
+ if (h_stateCheckHeader(state->h_hdr)) {
+ state->bail = 1;
+ goto done;
+ }
+
+ records = state->h_hdr->records;
+
+ if (h_stateAllocMap(state)) {
+ state->bail = 1;
+ goto done;
+ }
+
+ /* iterate over records restoring host state */
+ for (i=0; i < records; i++) {
+ if (h_stateRestoreHost(state) != 0) {
+ state->bail = 1;
+ break;
+ }
+ }
+
+ done:
+ return state->bail;
+}
+
+int
+h_stateRestoreIndices(struct fs_dump_state * state)
+{
+ h_Enumerate_r(h_stateRestoreIndex, hostList, (char *)state);
+ return state->bail;
+}
+
+static int
+h_stateRestoreIndex(struct host * h, int held, struct fs_dump_state * state)
+{
+ if (cb_OldToNew(state, h->cblist, &h->cblist)) {
+ return H_ENUMERATE_BAIL(held);
+ }
+ return held;
+}
+
+int
+h_stateVerify(struct fs_dump_state * state)
+{
+ h_Enumerate_r(h_stateVerifyHost, hostList, (char *)state);
+ return state->bail;
+}
+
+static int
+h_stateVerifyHost(struct host * h, int held, struct fs_dump_state * state)
+{
+ int i;
+
+ if (h == NULL) {
+ ViceLog(0, ("h_stateVerifyHost: error: NULL host pointer in linked list\n"));
+ return H_ENUMERATE_BAIL(held);
+ }
+
+ if (h->interface) {
+ for (i = h->interface->numberOfInterfaces-1; i >= 0; i--) {
+ if (h_stateVerifyAddrHash(state, h, h->interface->interface[i].addr,
+ h->interface->interface[i].port)) {
+ state->bail = 1;
+ }
+ }
+ if (h_stateVerifyUuidHash(state, h)) {
+ state->bail = 1;
+ }
+ } else if (h_stateVerifyAddrHash(state, h, h->host, h->port)) {
+ state->bail = 1;
+ }
+
+ if (cb_stateVerifyHCBList(state, h)) {
+ state->bail = 1;
+ }
+
+ done:
+ return held;
+}
+
+static int
+h_stateVerifyAddrHash(struct fs_dump_state * state, struct host * h, afs_uint32 addr, afs_uint16 port)
+{
+ int ret = 0, found = 0;
+ struct host *host = NULL;
+ struct h_hashChain *chain;
+ int index = h_HashIndex(addr);
+ char tmp[16];
+ int chain_len = 0;
+
+ for (chain = hostHashTable[index]; chain; chain = chain->next) {
+ host = chain->hostPtr;
+ if (host == NULL) {
+ afs_inet_ntoa_r(addr, tmp);
+ ViceLog(0, ("h_stateVerifyAddrHash: error: addr hash chain has NULL host ptr (lookup addr %s)\n", tmp));
+ ret = 1;
+ goto done;
+ }
+ if ((chain->addr == addr) && (chain->port == port)) {
+ if (host != h) {
+ ViceLog(0, ("h_stateVerifyAddrHash: warning: addr hash entry points to different host struct (%d, %d)\n",
+ h->index, host->index));
+ state->flags.warnings_generated = 1;
+ }
+ found = 1;
+ break;
+ }
+ if (chain_len > FS_STATE_H_MAX_ADDR_HASH_CHAIN_LEN) {
+ ViceLog(0, ("h_stateVerifyAddrHash: error: hash chain length exceeds %d; assuming there's a loop\n",
+ FS_STATE_H_MAX_ADDR_HASH_CHAIN_LEN));
+ ret = 1;
+ goto done;
+ }
+ chain_len++;
+ }
+
+ if (!found) {
+ afs_inet_ntoa_r(addr, tmp);
+ if (state->mode == FS_STATE_LOAD_MODE) {
+ ViceLog(0, ("h_stateVerifyAddrHash: error: addr %s not found in hash\n", tmp));
+ ret = 1;
+ goto done;
+ } else {
+ ViceLog(0, ("h_stateVerifyAddrHash: warning: addr %s not found in hash\n", tmp));
+ state->flags.warnings_generated = 1;
+ }
+ }
+
+ done:
+ return ret;
+}
+
+static int
+h_stateVerifyUuidHash(struct fs_dump_state * state, struct host * h)
+{
+ int ret = 0, found = 0;
+ struct host *host = NULL;
+ struct h_hashChain *chain;
+ afsUUID * uuidp = &h->interface->uuid;
+ int index = h_UuidHashIndex(uuidp);
+ char tmp[40];
+ int chain_len = 0;
+
+ for (chain = hostUuidHashTable[index]; chain; chain = chain->next) {
+ host = chain->hostPtr;
+ if (host == NULL) {
+ afsUUID_to_string(uuidp, tmp, sizeof(tmp));
+ ViceLog(0, ("h_stateVerifyUuidHash: error: uuid hash chain has NULL host ptr (lookup uuid %s)\n", tmp));
+ ret = 1;
+ goto done;
+ }
+ if (host->interface &&
+ afs_uuid_equal(&host->interface->uuid, uuidp)) {
+ if (host != h) {
+ ViceLog(0, ("h_stateVerifyUuidHash: warning: uuid hash entry points to different host struct (%d, %d)\n",
+ h->index, host->index));
+ state->flags.warnings_generated = 1;
+ }
+ found = 1;
+ goto done;
+ }
+ if (chain_len > FS_STATE_H_MAX_UUID_HASH_CHAIN_LEN) {
+ ViceLog(0, ("h_stateVerifyUuidHash: error: hash chain length exceeds %d; assuming there's a loop\n",
+ FS_STATE_H_MAX_UUID_HASH_CHAIN_LEN));
+ ret = 1;
+ goto done;
+ }
+ chain_len++;
+ }
+
+ if (!found) {
+ afsUUID_to_string(uuidp, tmp, sizeof(tmp));
+ if (state->mode == FS_STATE_LOAD_MODE) {
+ ViceLog(0, ("h_stateVerifyUuidHash: error: uuid %s not found in hash\n", tmp));
+ ret = 1;
+ goto done;
+ } else {
+ ViceLog(0, ("h_stateVerifyUuidHash: warning: uuid %s not found in hash\n", tmp));
+ state->flags.warnings_generated = 1;
+ }
+ }
+
+ done:
+ return ret;
+}
+
+/* create the host state header structure */
+static int
+h_stateFillHeader(struct host_state_header * hdr)
+{
+ hdr->stamp.magic = HOST_STATE_MAGIC;
+ hdr->stamp.version = HOST_STATE_VERSION;
+}
+
+/* check the contents of the host state header structure */
+static int
+h_stateCheckHeader(struct host_state_header * hdr)
+{
+ int ret=0;
+
+ if (hdr->stamp.magic != HOST_STATE_MAGIC) {
+ ViceLog(0, ("check_host_state_header: invalid state header\n"));
+ ret = 1;
+ }
+ else if (hdr->stamp.version != HOST_STATE_VERSION) {
+ ViceLog(0, ("check_host_state_header: unknown version number\n"));
+ ret = 1;
+ }
+ return ret;
+}
+
+/* allocate the host id mapping table */
+static int
+h_stateAllocMap(struct fs_dump_state * state)
+{
+ state->h_map.len = state->h_hdr->index_max + 1;
+ state->h_map.entries = (struct idx_map_entry_t *)
+ calloc(state->h_map.len, sizeof(struct idx_map_entry_t));
+ return (state->h_map.entries != NULL) ? 0 : 1;
+}
+
+/* function called by h_Enumerate to save a host to disk */
+static int
+h_stateSaveHost(register struct host * host, int held, struct fs_dump_state * state)
+{
+ int i, if_len=0, hcps_len=0;
+ struct hostDiskEntry hdsk;
+ struct host_state_entry_header hdr;
+ struct Interface * ifp = NULL;
+ afs_int32 * hcps = NULL;
+ struct iovec iov[4];
+ int iovcnt = 2;
+
+ memset(&hdr, 0, sizeof(hdr));
+
+ if (state->h_hdr->index_max < host->index) {
+ state->h_hdr->index_max = host->index;
+ }
+
+ h_hostToDiskEntry_r(host, &hdsk);
+ if (host->interface) {
+ if_len = sizeof(struct Interface) +
+ ((host->interface->numberOfInterfaces-1) * sizeof(struct AddrPort));
+ ifp = (struct Interface *) malloc(if_len);
+ assert(ifp != NULL);
+ memcpy(ifp, host->interface, if_len);
+ hdr.interfaces = host->interface->numberOfInterfaces;
+ iov[iovcnt].iov_base = (char *) ifp;
+ iov[iovcnt].iov_len = if_len;
+ iovcnt++;
+ }
+ if (host->hcps.prlist_val) {
+ hdr.hcps = host->hcps.prlist_len;
+ hcps_len = hdr.hcps * sizeof(afs_int32);
+ hcps = (afs_int32 *) malloc(hcps_len);
+ assert(hcps != NULL);
+ memcpy(hcps, host->hcps.prlist_val, hcps_len);
+ iov[iovcnt].iov_base = (char *) hcps;
+ iov[iovcnt].iov_len = hcps_len;
+ iovcnt++;
+ }
+
+ if (hdsk.index > state->h_hdr->index_max)
+ state->h_hdr->index_max = hdsk.index;
+
+ hdr.len = sizeof(struct host_state_entry_header) +
+ sizeof(struct hostDiskEntry) + if_len + hcps_len;
+ hdr.magic = HOST_STATE_ENTRY_MAGIC;
+
+ iov[0].iov_base = (char *) &hdr;
+ iov[0].iov_len = sizeof(hdr);
+ iov[1].iov_base = (char *) &hdsk;
+ iov[1].iov_len = sizeof(struct hostDiskEntry);
+
+ if (fs_stateWriteV(state, iov, iovcnt)) {
+ ViceLog(0, ("h_stateSaveHost: failed to save host %d", host->index));
+ state->bail = 1;
+ }
+
+ fs_stateIncEOF(state, hdr.len);
+
+ state->h_hdr->records++;
+
+ done:
+ if (ifp)
+ free(ifp);
+ if (hcps)
+ free(hcps);
+ if (state->bail) {
+ return H_ENUMERATE_BAIL(held);
+ }
+ return held;
+}
+
+/* restores a host from disk */
+static int
+h_stateRestoreHost(struct fs_dump_state * state)
+{
+ int ifp_len=0, hcps_len=0, bail=0;
+ struct host_state_entry_header hdr;
+ struct hostDiskEntry hdsk;
+ struct host *host = NULL;
+ struct Interface *ifp = NULL;
+ afs_int32 * hcps = NULL;
+ struct iovec iov[3];
+ int iovcnt = 1;
+
+ if (fs_stateRead(state, &hdr, sizeof(hdr))) {
+ ViceLog(0, ("h_stateRestoreHost: failed to read host entry header from dump file '%s'\n",
+ state->fn));
+ bail = 1;
+ goto done;
+ }
+
+ if (hdr.magic != HOST_STATE_ENTRY_MAGIC) {
+ ViceLog(0, ("h_stateRestoreHost: fileserver state dump file '%s' is corrupt.\n",
+ state->fn));
+ bail = 1;
+ goto done;
+ }
+
+ iov[0].iov_base = (char *) &hdsk;
+ iov[0].iov_len = sizeof(struct hostDiskEntry);
+
+ if (hdr.interfaces) {
+ ifp_len = sizeof(struct Interface) +
+ ((hdr.interfaces-1) * sizeof(struct AddrPort));
+ ifp = (struct Interface *) malloc(ifp_len);
+ assert(ifp != NULL);
+ iov[iovcnt].iov_base = (char *) ifp;
+ iov[iovcnt].iov_len = ifp_len;
+ iovcnt++;
+ }
+ if (hdr.hcps) {
+ hcps_len = hdr.hcps * sizeof(afs_int32);
+ hcps = (afs_int32 *) malloc(hcps_len);
+ assert(hcps != NULL);
+ iov[iovcnt].iov_base = (char *) hcps;
+ iov[iovcnt].iov_len = hcps_len;
+ iovcnt++;
+ }
+
+ if ((ifp_len + hcps_len + sizeof(hdsk) + sizeof(hdr)) != hdr.len) {
+ ViceLog(0, ("h_stateRestoreHost: host entry header length fields are inconsistent\n"));
+ bail = 1;
+ goto done;
+ }
+
+ if (fs_stateReadV(state, iov, iovcnt)) {
+ ViceLog(0, ("h_stateRestoreHost: failed to read host entry\n"));
+ bail = 1;
+ goto done;
+ }
+
+ if (!hdr.hcps && hdsk.hcps_valid) {
+ /* valid, zero-length host cps ; does this ever happen? */
+ hcps = (afs_int32 *) malloc(sizeof(afs_int32));
+ assert(hcps != NULL);
+ }
+
+ host = GetHT();
+ assert(host != NULL);
+
+ if (ifp) {
+ host->interface = ifp;
+ }
+ if (hcps) {
+ host->hcps.prlist_val = hcps;
+ host->hcps.prlist_len = hdr.hcps;
+ }
+
+ h_diskEntryToHost_r(&hdsk, host);
+ h_SetupCallbackConn_r(host);
+
+ if (ifp) {
+ int i;
+ for (i = ifp->numberOfInterfaces-1; i >= 0; i--) {
+ h_AddHostToHashTable_r(ifp->interface[i].addr,
+ ifp->interface[i].port, host);
+ }
+ h_AddHostToUuidHashTable_r(&ifp->uuid, host);
+ } else {
+ h_AddHostToHashTable_r(host->host, host->port, host);
+ }
+ h_InsertList_r(host);
+
+ /* setup host id map entry */
+ state->h_map.entries[hdsk.index].old_idx = hdsk.index;
+ state->h_map.entries[hdsk.index].new_idx = host->index;
+
+ done:
+ if (bail) {
+ if (ifp)
+ free(ifp);
+ if (hcps)
+ free(hcps);
+ }
+ return bail;
+}
+
+/* serialize a host structure to disk */
+static void
+h_hostToDiskEntry_r(struct host * in, struct hostDiskEntry * out)
+{
+ out->host = in->host;
+ out->port = in->port;
+ out->hostFlags = in->hostFlags;
+ out->Console = in->Console;
+ out->hcpsfailed = in->hcpsfailed;
+ out->LastCall = in->LastCall;
+ out->ActiveCall = in->ActiveCall;
+ out->cpsCall = in->cpsCall;
+ out->cblist = in->cblist;
+#ifdef FS_STATS_DETAILED
+ out->InSameNetwork = in->InSameNetwork;
+#endif
+
+ /* special fields we save, but are not memcpy'd back on restore */
+ out->index = in->index;
+ out->hcps_len = in->hcps.prlist_len;
+ out->hcps_valid = (in->hcps.prlist_val == NULL) ? 0 : 1;
+}
+
+/* restore a host structure from disk */
+static void
+h_diskEntryToHost_r(struct hostDiskEntry * in, struct host * out)
+{
+ out->host = in->host;
+ out->port = in->port;
+ out->hostFlags = in->hostFlags;
+ out->Console = in->Console;
+ out->hcpsfailed = in->hcpsfailed;
+ out->LastCall = in->LastCall;
+ out->ActiveCall = in->ActiveCall;
+ out->cpsCall = in->cpsCall;
+ out->cblist = in->cblist;
+#ifdef FS_STATS_DETAILED
+ out->InSameNetwork = in->InSameNetwork;
+#endif
+}
+
+/* index translation routines */
+int
+h_OldToNew(struct fs_dump_state * state, afs_uint32 old, afs_uint32 * new)
+{
+ int ret = 0;
+
+ /* hosts use a zero-based index, so old==0 is valid */
+
+ if (old >= state->h_map.len) {
+ ViceLog(0, ("h_OldToNew: index %d is out of range\n", old));
+ ret = 1;
+ } else if (state->h_map.entries[old].old_idx != old) { /* sanity check */
+ ViceLog(0, ("h_OldToNew: index %d points to an invalid host record\n", old));
+ ret = 1;
+ } else {
+ *new = state->h_map.entries[old].new_idx;
+ }
+
+ done:
+ return ret;
+}
+#endif /* AFS_DEMAND_ATTACH_FS */
/*
* recently). An active workstation has received a call since the cutoff
* time argument passed.
*/
-void
+void
h_GetWorkStats(int *nump, int *activep, int *delp, afs_int32 cutofftime)
{
- register int i;
register struct host *host;
- register int num=0, active=0, del=0;
+ register int num = 0, active = 0, del = 0;
- H_LOCK
+ H_LOCK;
for (host = hostList; host; host = host->next) {
- if (!(host->hostFlags & HOSTDELETED)) {
- num++;
- if (host->ActiveCall > cutofftime)
- active++;
- if (host->hostFlags & VENUSDOWN)
- del++;
- }
+ if (!(host->hostFlags & HOSTDELETED)) {
+ num++;
+ if (host->ActiveCall > cutofftime)
+ active++;
+ if (host->hostFlags & VENUSDOWN)
+ del++;
+ }
}
- H_UNLOCK
+ H_UNLOCK;
if (nump)
*nump = num;
if (activep)
if (delp)
*delp = del;
-} /*h_GetWorkStats*/
+} /*h_GetWorkStats */
/*------------------------------------------------------------------------
* As advertised.
*------------------------------------------------------------------------*/
-static void h_ClassifyAddress(afs_uint32 a_targetAddr, afs_uint32 a_candAddr,
- afs_int32 *a_sameNetOrSubnetP,
- afs_int32 *a_diffSubnetP,
- afs_int32 *a_diffNetworkP)
-{ /*h_ClassifyAddress*/
+static void
+h_ClassifyAddress(afs_uint32 a_targetAddr, afs_uint32 a_candAddr,
+ afs_int32 * a_sameNetOrSubnetP, afs_int32 * a_diffSubnetP,
+ afs_int32 * a_diffNetworkP)
+{ /*h_ClassifyAddress */
- register int i; /*Iterator thru host hash table*/
- register struct host *hostP; /*Ptr to current host entry*/
- register afs_uint32 currHostAddr; /*Current host address*/
afs_uint32 targetNet;
afs_uint32 targetSubnet;
afs_uint32 candNet;
* Put bad values into the subnet info to start with.
*/
targetSubnet = (afs_uint32) 0;
- candSubnet = (afs_uint32) 0;
+ candSubnet = (afs_uint32) 0;
/*
* Pull out the network and subnetwork numbers from the target
return;
}
targetNet = a_targetAddr & IN_CLASSA_NET;
- candNet = a_candAddr & IN_CLASSA_NET;
+ candNet = a_candAddr & IN_CLASSA_NET;
if (IN_SUBNETA(a_targetAddr))
targetSubnet = a_targetAddr & IN_CLASSA_SUBNET;
if (IN_SUBNETA(a_candAddr))
candSubnet = a_candAddr & IN_CLASSA_SUBNET;
- }
- else
- if (IN_CLASSB(a_targetAddr)) {
- if (!(IN_CLASSB(a_candAddr))) {
- (*a_diffNetworkP)++;
- return;
- }
- targetNet = a_targetAddr & IN_CLASSB_NET;
- candNet = a_candAddr & IN_CLASSB_NET;
- if (IN_SUBNETB(a_targetAddr))
- targetSubnet = a_targetAddr & IN_CLASSB_SUBNET;
- if (IN_SUBNETB(a_candAddr))
- candSubnet = a_candAddr & IN_CLASSB_SUBNET;
- } /*Class B target*/
- else
- if (IN_CLASSC(a_targetAddr)) {
- if (!(IN_CLASSC(a_candAddr))) {
- (*a_diffNetworkP)++;
- return;
- }
- targetNet = a_targetAddr & IN_CLASSC_NET;
- candNet = a_candAddr & IN_CLASSC_NET;
+ } else if (IN_CLASSB(a_targetAddr)) {
+ if (!(IN_CLASSB(a_candAddr))) {
+ (*a_diffNetworkP)++;
+ return;
+ }
+ targetNet = a_targetAddr & IN_CLASSB_NET;
+ candNet = a_candAddr & IN_CLASSB_NET;
+ if (IN_SUBNETB(a_targetAddr))
+ targetSubnet = a_targetAddr & IN_CLASSB_SUBNET;
+ if (IN_SUBNETB(a_candAddr))
+ candSubnet = a_candAddr & IN_CLASSB_SUBNET;
+ } /*Class B target */
+ else if (IN_CLASSC(a_targetAddr)) {
+ if (!(IN_CLASSC(a_candAddr))) {
+ (*a_diffNetworkP)++;
+ return;
+ }
+ targetNet = a_targetAddr & IN_CLASSC_NET;
+ candNet = a_candAddr & IN_CLASSC_NET;
+
+ /*
+ * Note that class C addresses can't have subnets,
+ * so we leave the defaults untouched.
+ */
+ } /*Class C target */
+ else {
+ targetNet = a_targetAddr;
+ candNet = a_candAddr;
+ } /*Class D address */
- /*
- * Note that class C addresses can't have subnets,
- * so we leave the defaults untouched.
- */
- } /*Class C target*/
- else {
- targetNet = a_targetAddr;
- candNet = a_candAddr;
- } /*Class D address*/
-
/*
* Now, simply compare the extracted net and subnet values for
* the two addresses (which at this point are known to be of the
(*a_sameNetOrSubnetP)++;
else
(*a_diffSubnetP)++;
- }
- else
+ } else
(*a_diffNetworkP)++;
-} /*h_ClassifyAddress*/
+} /*h_ClassifyAddress */
/*------------------------------------------------------------------------
* As advertised.
*------------------------------------------------------------------------*/
-void h_GetHostNetStats(afs_int32 *a_numHostsP, afs_int32 *a_sameNetOrSubnetP,
- afs_int32 *a_diffSubnetP, afs_int32 *a_diffNetworkP)
-{ /*h_GetHostNetStats*/
+void
+h_GetHostNetStats(afs_int32 * a_numHostsP, afs_int32 * a_sameNetOrSubnetP,
+ afs_int32 * a_diffSubnetP, afs_int32 * a_diffNetworkP)
+{ /*h_GetHostNetStats */
- register struct host *hostP; /*Ptr to current host entry*/
- register afs_uint32 currAddr_HBO; /*Curr host addr, host byte order*/
+ register struct host *hostP; /*Ptr to current host entry */
+ register afs_uint32 currAddr_HBO; /*Curr host addr, host byte order */
/*
* Clear out the storage pointed to by our parameters.
*/
- *a_numHostsP = (afs_int32) 0;
- *a_sameNetOrSubnetP = (afs_int32) 0;
- *a_diffSubnetP = (afs_int32) 0;
- *a_diffNetworkP = (afs_int32) 0;
+ *a_numHostsP = (afs_int32) 0;
+ *a_sameNetOrSubnetP = (afs_int32) 0;
+ *a_diffSubnetP = (afs_int32) 0;
+ *a_diffNetworkP = (afs_int32) 0;
- H_LOCK
+ H_LOCK;
for (hostP = hostList; hostP; hostP = hostP->next) {
- if (!(hostP->hostFlags & HOSTDELETED)) {
- /*
- * Bump the number of undeleted host entries found.
- * In classifying the current entry's address, make
- * sure to first convert to host byte order.
- */
- (*a_numHostsP)++;
- currAddr_HBO = (afs_uint32)ntohl(hostP->host);
- h_ClassifyAddress(FS_HostAddr_HBO,
- currAddr_HBO,
- a_sameNetOrSubnetP,
- a_diffSubnetP,
- a_diffNetworkP);
- } /*Only look at non-deleted hosts*/
- } /*For each host record hashed to this index*/
- H_UNLOCK
-
-} /*h_GetHostNetStats*/
-
-static afs_uint32 checktime;
-static afs_uint32 clientdeletetime;
+ if (!(hostP->hostFlags & HOSTDELETED)) {
+ /*
+ * Bump the number of undeleted host entries found.
+ * In classifying the current entry's address, make
+ * sure to first convert to host byte order.
+ */
+ (*a_numHostsP)++;
+ currAddr_HBO = (afs_uint32) ntohl(hostP->host);
+ h_ClassifyAddress(FS_HostAddr_HBO, currAddr_HBO,
+ a_sameNetOrSubnetP, a_diffSubnetP,
+ a_diffNetworkP);
+ } /*Only look at non-deleted hosts */
+ } /*For each host record hashed to this index */
+ H_UNLOCK;
+} /*h_GetHostNetStats */
+
+static afs_uint32 checktime;
+static afs_uint32 clientdeletetime;
static struct AFSFid zerofid;
* Since it can serialize them, and pile up, it should be a separate LWP
* from other events.
*/
-int CheckHost(register struct host *host, int held)
+static int
+CheckHost(register struct host *host, int held)
{
register struct client *client;
+ struct rx_connection *cb_conn = NULL;
int code;
+#ifdef AFS_DEMAND_ATTACH_FS
+ /* kill the checkhost lwp ASAP during shutdown */
+ FS_STATE_RDLOCK;
+ if (fs_state.mode == FS_MODE_SHUTDOWN) {
+ FS_STATE_UNLOCK;
+ return H_ENUMERATE_BAIL(held);
+ }
+ FS_STATE_UNLOCK;
+#endif
+
/* Host is held by h_Enumerate */
- H_LOCK
+ H_LOCK;
for (client = host->FirstClient; client; client = client->next) {
- if (client->refCount == 0 && client->LastCall < clientdeletetime) {
- client->deleted = 1;
- host->hostFlags |= CLIENTDELETED;
- }
+ if (client->refCount == 0 && client->LastCall < clientdeletetime) {
+ client->deleted = 1;
+ host->hostFlags |= CLIENTDELETED;
+ }
}
if (host->LastCall < checktime) {
h_Lock_r(host);
if (!(host->hostFlags & HOSTDELETED)) {
+ cb_conn = host->callback_rxcon;
+ rx_GetConnection(cb_conn);
if (host->LastCall < clientdeletetime) {
host->hostFlags |= HOSTDELETED;
if (!(host->hostFlags & VENUSDOWN)) {
- host->hostFlags &= ~ALTADDR; /* alternate address invalid*/
+ host->hostFlags &= ~ALTADDR; /* alternate address invalid */
if (host->interface) {
- H_UNLOCK
- code = RXAFSCB_InitCallBackState3(host->callback_rxcon,
- &FS_HostUUID);
- H_LOCK
+ H_UNLOCK;
+ code =
+ RXAFSCB_InitCallBackState3(cb_conn,
+ &FS_HostUUID);
+ H_LOCK;
} else {
- H_UNLOCK
- code = RXAFSCB_InitCallBackState(host->callback_rxcon);
- H_LOCK
+ H_UNLOCK;
+ code =
+ RXAFSCB_InitCallBackState(cb_conn);
+ H_LOCK;
}
- host->hostFlags |= ALTADDR; /* alternate addresses valid */
- if ( code )
- {
+ host->hostFlags |= ALTADDR; /* alternate addresses valid */
+ if (code) {
char hoststr[16];
- afs_inet_ntoa_r(host->host, hoststr);
- ViceLog(0,
+ (void)afs_inet_ntoa_r(host->host, hoststr);
+ ViceLog(0,
("CB: RCallBackConnectBack (host.c) failed for host %s:%d\n",
hoststr, ntohs(host->port)));
- host->hostFlags |= VENUSDOWN;
+ host->hostFlags |= VENUSDOWN;
}
/* Note: it's safe to delete hosts even if they have call
* back state, because break delayed callbacks (called when a
*callback.
*/
}
- }
- else {
+ } else {
if (!(host->hostFlags & VENUSDOWN) && host->cblist) {
if (host->interface) {
afsUUID uuid = host->interface->uuid;
- H_UNLOCK
- code = RXAFSCB_ProbeUuid(host->callback_rxcon, &uuid);
- H_LOCK
- if(code) {
- if ( MultiProbeAlternateAddress_r(host) ) {
+ H_UNLOCK;
+ code = RXAFSCB_ProbeUuid(cb_conn, &uuid);
+ H_LOCK;
+ if (code) {
+ if (MultiProbeAlternateAddress_r(host)) {
char hoststr[16];
- afs_inet_ntoa_r(host->host, hoststr);
- ViceLog(0,
+ (void)afs_inet_ntoa_r(host->host, hoststr);
+ ViceLog(0,
("ProbeUuid failed for host %s:%d\n",
hoststr, ntohs(host->port)));
- host->hostFlags |= VENUSDOWN;
+ host->hostFlags |= VENUSDOWN;
}
}
} else {
- H_UNLOCK
- code = RXAFSCB_Probe(host->callback_rxcon);
- H_LOCK
+ H_UNLOCK;
+ code = RXAFSCB_Probe(cb_conn);
+ H_LOCK;
if (code) {
char hoststr[16];
- afs_inet_ntoa_r(host->host, hoststr);
- ViceLog(0, ("ProbeUuid failed for host %s:%d\n",
- hoststr, ntohs(host->port)));
+ (void)afs_inet_ntoa_r(host->host, hoststr);
+ ViceLog(0,
+ ("Probe failed for host %s:%d\n", hoststr,
+ ntohs(host->port)));
host->hostFlags |= VENUSDOWN;
}
}
}
}
+ H_UNLOCK;
+ rx_PutConnection(cb_conn);
+ cb_conn=NULL;
+ H_LOCK;
}
h_Unlock_r(host);
}
- H_UNLOCK
+ H_UNLOCK;
return held;
-} /*CheckHost*/
+} /*CheckHost */
/*
*
* This routine is called roughly every 5 minutes.
*/
-void h_CheckHosts() {
+void
+h_CheckHosts(void)
+{
afs_uint32 now = FT_ApproxTime();
memset((char *)&zerofid, 0, sizeof(zerofid));
* Send a probe to the workstation if it hasn't been heard from in
* 15 minutes
*/
- checktime = now - 15*60;
- clientdeletetime = now - 120*60; /* 2 hours ago */
+ checktime = now - 15 * 60;
+ clientdeletetime = now - 120 * 60; /* 2 hours ago */
h_Enumerate(CheckHost, NULL);
-} /*h_CheckHosts*/
+} /*h_CheckHosts */
/*
* This is called with host locked and held. At this point, the
- * hostHashTable should not be having entries for the alternate
+ * hostHashTable should not have any entries for the alternate
* interfaces. This function has to insert these entries in the
* hostHashTable.
*
- * The addresses in the ineterfaceAddr list are in host byte order.
+ * The addresses in the interfaceAddr list are in host byte order.
*/
int
initInterfaceAddr_r(struct host *host, struct interfaceAddr *interf)
{
- int i, j;
- int number, count;
- afs_int32 myPort, myHost;
- int found;
- struct Interface *interface;
-
- assert(host);
- assert(interf);
-
- ViceLog(125,("initInterfaceAddr : host %x numAddr %d\n",
- host->host, interf->numberOfInterfaces));
-
- number = interf->numberOfInterfaces;
- myPort = host->port;
- myHost = host->host; /* current interface address */
-
- /* validation checks */
- if ( number < 0 || number > AFS_MAX_INTERFACE_ADDR )
- {
- ViceLog(0,("Number of alternate addresses returned is %d\n",
- number));
- return -1;
- }
-
- /*
- * Convert IP addresses to network byte order, and remove for
- * duplicate IP addresses from the interface list.
- */
- for (i = 0, count = 0, found = 0; i < number; i++)
- {
- interf->addr_in[i] = htonl(interf->addr_in[i]);
- for (j = 0 ; j < count ; j++) {
- if (interf->addr_in[j] == interf->addr_in[i])
- break;
- }
- if (j == count) {
- interf->addr_in[count] = interf->addr_in[i];
- if (interf->addr_in[count] == myHost)
- found = 1;
- count++;
- }
- }
+ int i, j;
+ int number, count;
+ afs_uint32 myAddr;
+ afs_uint16 myPort;
+ int found;
+ struct Interface *interface;
+
+ assert(host);
+ assert(interf);
+
+ ViceLog(125,
+ ("initInterfaceAddr : host %x numAddr %d\n", host->host,
+ interf->numberOfInterfaces));
+
+ number = interf->numberOfInterfaces;
+ myAddr = host->host; /* current interface address */
+ myPort = host->port; /* current port */
+
+ /* validation checks */
+ if (number < 0 || number > AFS_MAX_INTERFACE_ADDR) {
+ ViceLog(0,
+ ("Number of alternate addresses returned is %d\n", number));
+ return -1;
+ }
- /*
- * Allocate and initialize an interface structure for this host.
- */
- if (found) {
- interface = (struct Interface *)
- malloc(sizeof(struct Interface) +
- (sizeof(afs_int32) * (count-1)));
- if (!interface) {
- ViceLog(0, ("Failed malloc in initInterfaceAddr_r\n"));
- assert(0);
- }
- interface->numberOfInterfaces = count;
- } else {
- interface = (struct Interface *)
- malloc(sizeof(struct Interface) +
- (sizeof(afs_int32) * count));
- assert(interface);
- interface->numberOfInterfaces = count + 1;
- interface->addr[count] = myHost;
+ /*
+ * Convert IP addresses to network byte order, and remove for
+ * duplicate IP addresses from the interface list.
+ */
+ for (i = 0, count = 0, found = 0; i < number; i++) {
+ interf->addr_in[i] = htonl(interf->addr_in[i]);
+ for (j = 0; j < count; j++) {
+ if (interf->addr_in[j] == interf->addr_in[i])
+ break;
}
- interface->uuid = interf->uuid;
- for (i = 0 ; i < count ; i++)
- interface->addr[i] = interf->addr_in[i];
-
- assert(!host->interface);
- host->interface = interface;
-
- for ( i=0; i < host->interface->numberOfInterfaces; i++)
- {
- ViceLog(125,("--- alt address %x\n", host->interface->addr[i]));
+ if (j == count) {
+ interf->addr_in[count] = interf->addr_in[i];
+ if (interf->addr_in[count] == myAddr)
+ found = 1;
+ count++;
}
+ }
- return 0;
-}
-
-/* inserts a new HashChain structure corresponding to this address */
-void hashInsert_r(afs_int32 addr, struct host* host)
-{
- int index;
- struct h_hashChain* chain;
-
- /* hash into proper bucket */
- index = h_HashIndex(addr);
-
- /* insert into beginning of list for this bucket */
- chain = (struct h_hashChain *)malloc(sizeof(struct h_hashChain));
- if (!chain) {
- ViceLog(0, ("Failed malloc in hashInsert_r\n"));
+ /*
+ * Allocate and initialize an interface structure for this host.
+ */
+ if (found) {
+ interface = (struct Interface *)
+ malloc(sizeof(struct Interface) +
+ (sizeof(struct AddrPort) * (count - 1)));
+ if (!interface) {
+ ViceLog(0, ("Failed malloc in initInterfaceAddr_r\n"));
assert(0);
}
- chain->hostPtr = host;
- chain->next = hostHashTable[index];
- chain->addr = addr;
- hostHashTable[index] = chain;
-
-}
-
-/*
- * This is called with host locked and held. At this point, the
- * hostHashTable should not be having entries for the alternate
- * interfaces. This function has to insert these entries in the
- * hostHashTable.
- *
- * All addresses are in network byte order.
- */
-int
-addInterfaceAddr_r(struct host *host, afs_int32 addr)
-{
- int i;
- int number;
- int found;
- struct Interface *interface;
-
- assert(host);
- assert(host->interface);
-
- ViceLog(125,("addInterfaceAddr : host %x addr %d\n",
- host->host, addr));
-
- /*
- * Make sure this address is on the list of known addresses
- * for this host.
+ interface->numberOfInterfaces = count;
+ } else {
+ interface = (struct Interface *)
+ malloc(sizeof(struct Interface) + (sizeof(struct AddrPort) * count));
+ assert(interface);
+ interface->numberOfInterfaces = count + 1;
+ interface->interface[count].addr = myAddr;
+ interface->interface[count].port = myPort;
+ }
+ interface->uuid = interf->uuid;
+ for (i = 0; i < count; i++) {
+ interface->interface[i].addr = interf->addr_in[i];
+ /* We store the port as 7001 because the addresses reported by
+ * TellMeAboutYourself and WhoAreYou RPCs are only valid if they
+ * are coming from fully connected hosts (no NAT/PATs)
*/
- number = host->interface->numberOfInterfaces;
- for ( i=0, found=0; i < number && !found; i++)
- {
- if ( host->interface->addr[i] == addr)
- found = 1;
- }
- if (!found) {
- interface = (struct Interface *)
- malloc(sizeof(struct Interface) +
- (sizeof(afs_int32) * number));
- if (!interface) {
- ViceLog(0, ("Failed malloc in addInterfaceAddr_r\n"));
- assert(0);
- }
- interface->numberOfInterfaces = number + 1;
- interface->uuid = host->interface->uuid;
- for (i = 0 ; i < number ; i++)
- interface->addr[i] = host->interface->addr[i];
- interface->addr[number] = addr;
- free(host->interface);
- host->interface = interface;
- }
+ interface->interface[i].port = htons(7001);
+ }
- /*
- * Create a hash table entry for this address
- */
- hashInsert_r(addr, host);
+ assert(!host->interface);
+ host->interface = interface;
- return 0;
+ for (i = 0; i < host->interface->numberOfInterfaces; i++) {
+ char hoststr[16];
+ ViceLog(125, ("--- alt address %s:%d\n",
+ afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr),
+ ntohs(host->interface->interface[i].port)));
+ }
+
+ return 0;
}
/* deleted a HashChain structure for this address and host */
/* returns 1 on success */
-int
-hashDelete_r(afs_int32 addr, struct host* host)
+static int
+h_DeleteHostFromHashTableByAddr_r(afs_uint32 addr, afs_uint16 port, struct host *host)
{
- int flag;
- int index;
- register struct h_hashChain **hp, *th;
-
- for (hp = &hostHashTable[h_HashIndex(addr)]; (th = *hp); )
- {
- assert(th->hostPtr);
- if (th->hostPtr == host && th->addr == addr)
- {
- *hp = th->next;
- free(th);
- flag = 1;
- break;
- } else {
- hp = &th->next;
- }
+ int flag;
+ register struct h_hashChain **hp, *th;
+
+ for (hp = &hostHashTable[h_HashIndex(addr)]; (th = *hp);) {
+ assert(th->hostPtr);
+ if (th->hostPtr == host && th->addr == addr && th->port == port) {
+ *hp = th->next;
+ free(th);
+ flag = 1;
+ break;
+ } else {
+ hp = &th->next;
}
- return flag;
+ }
+ return flag;
}
void
printInterfaceAddr(struct host *host, int level)
{
- int i, number;
- if ( host-> interface )
- {
- /* check alternate addresses */
- number = host->interface->numberOfInterfaces;
- assert( number > 0 );
- for ( i=0; i < number; i++)
- ViceLog(level, ("%x ", host->interface->addr[i]));
- }
- ViceLog(level, ("\n"));
-}
+ int i, number;
+ char hoststr[16];
+ if (host->interface) {
+ /* check alternate addresses */
+ number = host->interface->numberOfInterfaces;
+ assert(number > 0);
+ for (i = 0; i < number; i++)
+ ViceLog(level, ("%s:%d ", afs_inet_ntoa_r(host->interface->interface[i].addr, hoststr),
+ ntohs(host->interface->interface[i].port)));
+ }
+ ViceLog(level, ("\n"));
+}
git://git.openafs.org / openafs.git / blobdiff