* 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/prs_fs.h>
#include <afs/auth.h>
#include <afs/afsutil.h>
+#include <afs/com_err.h>
#include <rx/rx.h>
#include <afs/cellconfig.h>
#include <stdlib.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;
extern int lwps; /* the max number of server threads */
extern afsUUID FS_HostUUID;
+afsUUID nulluuid;
int CEs = 0; /* active clients */
int CEBlocks = 0; /* number of blocks of CEs */
struct client *CEFree = 0; /* first free client */
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 client entry[CESPERBLOCK];
static void
FreeCE(register struct client *entry)
{
+ entry->VenusEpoch = 0;
+ entry->sid = 0;
entry->next = CEFree;
CEFree = entry;
CEs--;
{
register struct host *entry;
- if (HTFree == 0)
+ if (HTFree == NULL)
GetHTBlock();
- assert(HTFree != 0);
+ assert(HTFree != NULL);
entry = HTFree;
HTFree = entry->next;
HTs++;
} /*FreeHT */
+afs_int32
+hpr_Initialize(struct ubik_client **uclient)
+{
+ afs_int32 code;
+ struct rx_connection *serverconns[MAXSERVERS];
+ struct rx_securityClass *sc[3];
+ struct afsconf_dir *tdir;
+ char tconfDir[100] = "";
+ char tcell[64] = "";
+ struct ktc_token ttoken;
+ afs_int32 scIndex;
+ struct afsconf_cell info;
+ afs_int32 i;
+ char cellstr[64];
+
+ tdir = afsconf_Open(AFSDIR_SERVER_ETC_DIRPATH);
+ if (!tdir) {
+ ViceLog(0, ("hpr_Initialize: Could not open configuration directory: %s", AFSDIR_SERVER_ETC_DIRPATH));
+ return -1;
+ }
+
+ code = afsconf_GetLocalCell(tdir, cellstr, sizeof(cellstr));
+ if (code) {
+ ViceLog(0, ("hpr_Initialize: Could not get local cell. [%d]", code));
+ afsconf_Close(tdir);
+ return code;
+ }
+
+ code = afsconf_GetCellInfo(tdir, cellstr, "afsprot", &info);
+ if (code) {
+ ViceLog(0, ("hpr_Initialize: Could not locate cell %s in %s/%s", cellstr, confDir, AFSDIR_CELLSERVDB_FILE));
+ afsconf_Close(tdir);
+ return code;
+ }
+
+ code = rx_Init(0);
+ if (code) {
+ ViceLog(0, ("hpr_Initialize: Could not initialize rx."));
+ afsconf_Close(tdir);
+ return code;
+ }
+
+ scIndex = 2;
+ sc[0] = 0;
+ sc[1] = 0;
+ sc[2] = 0;
+ /* Most callers use secLevel==1, however, the fileserver uses secLevel==2
+ * to force use of the KeyFile. secLevel == 0 implies -noauth was
+ * specified. */
+ if ((afsconf_GetLatestKey(tdir, 0, 0) == 0)) {
+ code = afsconf_ClientAuthSecure(tdir, &sc[2], &scIndex);
+ if (code)
+ ViceLog(0, ("hpr_Initialize: clientauthsecure returns %d %s (so trying noauth)", code, afs_error_message(code)));
+ if (code)
+ scIndex = 0; /* use noauth */
+ if (scIndex != 2)
+ /* if there was a problem, an unauthenticated conn is returned */
+ sc[scIndex] = sc[2];
+ } else {
+ struct ktc_principal sname;
+ strcpy(sname.cell, info.name);
+ sname.instance[0] = 0;
+ strcpy(sname.name, "afs");
+ code = ktc_GetToken(&sname, &ttoken, sizeof(ttoken), NULL);
+ if (code)
+ scIndex = 0;
+ else {
+ if (ttoken.kvno >= 0 && ttoken.kvno <= 256)
+ /* this is a kerberos ticket, set scIndex accordingly */
+ scIndex = 2;
+ else {
+ ViceLog(0, ("hpr_Initialize: funny kvno (%d) in ticket, proceeding", ttoken.kvno));
+ scIndex = 2;
+ }
+ sc[2] =
+ rxkad_NewClientSecurityObject(rxkad_clear, &ttoken.sessionKey,
+ ttoken.kvno, ttoken.ticketLen,
+ ttoken.ticket);
+ }
+ }
+ if ((scIndex == 0) && (sc[0] == 0))
+ sc[0] = rxnull_NewClientSecurityObject();
+ if ((scIndex == 0))
+ ViceLog(0, ("hpr_Initialize: Could not get afs tokens, running unauthenticated. [%d]", code));
+
+ memset(serverconns, 0, sizeof(serverconns)); /* terminate list!!! */
+ for (i = 0; i < info.numServers; i++) {
+ serverconns[i] =
+ rx_NewConnection(info.hostAddr[i].sin_addr.s_addr,
+ info.hostAddr[i].sin_port, PRSRV, sc[scIndex],
+ scIndex);
+ }
+
+ code = ubik_ClientInit(serverconns, uclient);
+ if (code) {
+ ViceLog(0, ("hpr_Initialize: ubik client init failed. [%d]", code));
+ }
+ afsconf_Close(tdir);
+ code = rxs_Release(sc[scIndex]);
+ return code;
+}
+
+int
+hpr_End(struct ubik_client *uclient)
+{
+ int code = 0;
+
+ if (uclient) {
+ code = ubik_ClientDestroy(uclient);
+ }
+ return code;
+}
+
+int
+hpr_GetHostCPS(afs_int32 host, prlist *CPS)
+{
+#ifdef AFS_PTHREAD_ENV
+ register afs_int32 code;
+ afs_int32 over;
+ struct ubik_client *uclient =
+ (struct ubik_client *)pthread_getspecific(viced_uclient_key);
+
+ if (!uclient) {
+ code = hpr_Initialize(&uclient);
+ assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
+ }
+
+ over = 0;
+ code = ubik_PR_GetHostCPS(uclient, 0, host, CPS, &over);
+ if (code != PRSUCCESS)
+ return code;
+ if (over) {
+ /* do something about this, probably make a new call */
+ /* don't forget there's a hard limit in the interface */
+ fprintf(stderr,
+ "membership list for host id %d exceeds display limit\n",
+ host);
+ }
+ return 0;
+#else
+ return pr_GetHostCPS(host, CPS);
+#endif
+}
+
+int
+hpr_NameToId(namelist *names, idlist *ids)
+{
+#ifdef AFS_PTHREAD_ENV
+ register afs_int32 code;
+ register afs_int32 i;
+ struct ubik_client *uclient =
+ (struct ubik_client *)pthread_getspecific(viced_uclient_key);
+
+ if (!uclient) {
+ code = hpr_Initialize(&uclient);
+ assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
+ }
+
+ for (i = 0; i < names->namelist_len; i++)
+ stolower(names->namelist_val[i]);
+ code = ubik_PR_NameToID(uclient, 0, names, ids);
+ return code;
+#else
+ return pr_NameToId(names, ids);
+#endif
+}
+
+int
+hpr_IdToName(idlist *ids, namelist *names)
+{
+#ifdef AFS_PTHREAD_ENV
+ register afs_int32 code;
+ struct ubik_client *uclient =
+ (struct ubik_client *)pthread_getspecific(viced_uclient_key);
+
+ if (!uclient) {
+ code = hpr_Initialize(&uclient);
+ assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
+ }
+
+ code = ubik_PR_IDToName(uclient, 0, ids, names);
+ return code;
+#else
+ return pr_IdToName(ids, names);
+#endif
+}
+
+int
+hpr_GetCPS(afs_int32 id, prlist *CPS)
+{
+#ifdef AFS_PTHREAD_ENV
+ register afs_int32 code;
+ afs_int32 over;
+ struct ubik_client *uclient =
+ (struct ubik_client *)pthread_getspecific(viced_uclient_key);
+
+ if (!uclient) {
+ code = hpr_Initialize(&uclient);
+ assert(pthread_setspecific(viced_uclient_key, (void *)uclient) == 0);
+ }
+
+ over = 0;
+ code = ubik_PR_GetCPS(uclient, 0, id, CPS, &over);
+ if (code != PRSUCCESS)
+ return code;
+ if (over) {
+ /* do something about this, probably make a new call */
+ /* don't forget there's a hard limit in the interface */
+ fprintf(stderr, "membership list for id %d exceeds display limit\n",
+ id);
+ }
+ return 0;
+#else
+ return pr_GetCPS(id, CPS);
+#endif
+}
static short consolePort = 0;
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(ntohl(host->host), &host->hcps);
+ code = hpr_GetHostCPS(ntohl(host->host), &host->hcps);
H_LOCK;
if (code) {
/*
{
struct servent *serverentry;
struct host *host;
- static struct rx_securityClass *sc = 0;
afs_int32 now;
#if FS_STATS_DETAILED
afs_uint32 newHostAddr_HBO; /*New host IP addr, in host byte order */
host->host = rxr_HostOf(r_con);
host->port = rxr_PortOf(r_con);
- hashInsert_r(host->host, host->port, host);
+ h_AddHostToHashTable_r(host->host, host->port, host);
if (consolePort == 0) { /* find the portal number for console */
#if defined(AFS_OSF_ENV)
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);
- }
+ 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->interface = 0;
+ host->interface = NULL;
#ifdef undef
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 */
} /*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 */
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);
- }
CurrentConnections--;
*cp = client->next;
ReleaseWriteLock(&client->lock);
Console--;
if ((rxconn = host->callback_rxcon)) {
host->callback_rxcon = (struct rx_connection *)0;
- /*
- * If rx_DestroyConnection calls h_FreeConnection we will
- * deadlock on the host_glock_mutex. Work around the problem
- * by unhooking the client from the connection before
- * destroying the connection.
- */
- client = rx_GetSpecific(rxconn, rxcon_client_key);
- if (client && client->tcon == rxconn)
- client->tcon = NULL;
- rx_SetSpecific(rxconn, rxcon_client_key, (void *)0);
rx_DestroyConnection(rxconn);
}
if (host->hcps.prlist_val)
} /*h_TossStuff_r */
-/* Called by rx when a server connection disappears */
-int
-h_FreeConnection(struct rx_connection *tcon)
-{
- register struct client *client;
-
- 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;
- }
- return 0;
-} /*h_FreeConnection */
-
-
/* h_Enumerate: Calls (*proc)(host, held, param) for at least each host in the
* system at the start of the enumeration (perhaps more). Hosts may be deleted
* (have delete flag set); ditto for clients. (*proc) is always called with
H_UNLOCK;
for (i = 0; i < count; i++) {
held[i] = (*proc) (list[i], held[i], param);
- if (!held[i])
+ 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_Hold_r(enumstart);
for (host = enumstart; host; host = next, held = nheld) {
next = host->next;
- if (next && !(nheld = h_Held_r(next)))
+ if (next && !(nheld = h_Held_r(next)) && !H_ENUMERATE_ISSET_BAIL(held))
h_Hold_r(next);
held = (*proc) (host, held, param);
- if (!held)
+ if (!H_ENUMERATE_ISSET_HELD(held))
h_Release_r(host); /* this might free up the host */
+ if (H_ENUMERATE_ISSET_BAIL(held)) {
+ if (!H_ENUMERATE_ISSET_HELD(nheld))
+ h_Release_r(next); /* this might free up the host */
+ break;
+ }
}
} /*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;
/* 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"));
+ ViceLog(0, ("Failed malloc in h_AddHostToUuidHashTable_r\n"));
assert(0);
}
assert(chain);
/* inserts a new HashChain structure corresponding to this address */
-void
-hashInsert_r(afs_uint32 addr, afs_uint16 port, struct host *host)
+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);
+ /* don't add the same entry multiple times */
+ for (chain = hostHashTable[index]; chain; chain = chain->next) {
+ if (chain->hostPtr == host && chain->addr == addr && chain->port == port)
+ return;
+ }
+
/* 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"));
+ ViceLog(0, ("Failed malloc in h_AddHostToHashTable_r\n"));
assert(0);
}
chain->hostPtr = host;
chain->addr = addr;
chain->port = port;
hostHashTable[index] = chain;
-
}
/*
/*
* Create a hash table entry for this address
*/
- hashInsert_r(addr, port, host);
+ h_AddHostToHashTable_r(addr, port, host);
return 0;
}
/*
* Remove the hash table entry for this address
*/
- hashDelete_r(addr, port, host);
+ h_DeleteHostFromHashTableByAddr_r(addr, port, host);
return 0;
}
+int
+h_threadquota(int waiting)
+{
+ if (lwps > 64) {
+ if (waiting > 5)
+ return 1;
+ } else if (lwps > 32) {
+ if (waiting > 4)
+ return 1;
+ } else if (lwps > 16) {
+ if (waiting > 3)
+ return 1;
+ } else {
+ if (waiting > 2)
+ return 1;
+ }
+ return 0;
+}
/* Host is returned held */
struct host *
* structure for this address. Verify that the identity
* of the caller matches the identity in the host structure.
*/
+ if ((host->hostFlags & HWHO_INPROGRESS) &&
+ h_threadquota(host->lock.num_waiting))
+ return 0;
h_Lock_r(host);
if (!(host->hostFlags & ALTADDR)) {
+ host->hostFlags &= ~HWHO_INPROGRESS;
/* Another thread is doing initialization */
h_Unlock_r(host);
if (!held)
rx_PutConnection(cb_conn);
cb_conn=NULL;
H_LOCK;
- if (code == RXGEN_OPCODE) {
+ if ((code == RXGEN_OPCODE) ||
+ (afs_uuid_equal(&interf.uuid, &nulluuid))) {
identP = (struct Identity *)malloc(sizeof(struct Identity));
if (!identP) {
ViceLog(0, ("Failed malloc in h_GetHost_r\n"));
afs_inet_ntoa_r(host->host, hoststr),
ntohs(host->port)));
host->hostFlags |= HOSTDELETED;
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
if (!held)
h_Release_r(host);
("Host %s:%d has changed its identity, deleting.\n",
afs_inet_ntoa_r(host->host, hoststr), host->port));
host->hostFlags |= HOSTDELETED;
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
if (!held)
h_Release_r(host);
else
host->hostFlags &= ~(HERRORTRANS);
host->hostFlags |= ALTADDR;
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
} else if (host) {
if (!(host->hostFlags & ALTADDR)) {
afs_inet_ntoa_r(host->host, hoststr),
ntohs(host->port)));
h_Lock_r(host);
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
if (!held)
h_Release_r(host);
/* The host in the cache is not the host for this connection */
host->hostFlags |= HOSTDELETED;
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
if (!held)
h_Release_r(host);
rx_PutConnection(cb_conn);
cb_conn=NULL;
H_LOCK;
- if (code == RXGEN_OPCODE) {
+ if ((code == RXGEN_OPCODE) ||
+ afs_uuid_equal(&interf.uuid, &nulluuid)) {
if (!identP)
identP =
(struct Identity *)malloc(sizeof(struct Identity));
if (!(oheld = h_Held_r(oldHost)))
h_Hold_r(oldHost);
h_Lock_r(oldHost);
+ oldHost->hostFlags |= HWHO_INPROGRESS;
if (oldHost->interface) {
+ int code2;
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);
+ code2 = 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)) {
+ if (code2) {
+ /* The primary address is either not responding or
+ * is not the client we are looking for.
+ * MultiProbeAlternateAddress_r() will remove the
+ * alternate interfaces that do not have the same
+ * Uuid. */
+ ViceLog(0,("CB: ProbeUuid for %s:%d failed %d\n",
+ afs_inet_ntoa_r(oldHost->host, hoststr),
+ ntohs(oldHost->port),code2));
+ 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 (oldHost->host != haddr || oldHost->port != hport) {
+ struct rx_connection *rxconn;
+
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 */
+ if (probefail || oldHost->host == haddr) {
+ /* The probe failed which means that the old address is
+ * either unreachable or is not the same host we were just
+ * contacted by. We will also remove addresses if only
+ * the port has changed because that indicates the client
+ * is behind a NAT.
+ */
removeInterfaceAddr_r(oldHost, oldHost->host, oldHost->port);
} else {
int i, found;
addInterfaceAddr_r(oldHost, haddr, hport);
oldHost->host = haddr;
oldHost->port = hport;
+ rxconn = oldHost->callback_rxcon;
+ oldHost->callback_rxcon = host->callback_rxcon;
+ host->callback_rxcon = NULL;
+
+ if (rxconn) {
+ struct client *client;
+ /*
+ * If rx_DestroyConnection calls h_FreeConnection we will
+ * deadlock on the host_glock_mutex. Work around the problem
+ * by unhooking the client from the connection before
+ * destroying the connection.
+ */
+ client = rx_GetSpecific(rxconn, rxcon_client_key);
+ rx_SetSpecific(rxconn, rxcon_client_key, (void *)0);
+ rx_DestroyConnection(rxconn);
+ }
}
host->hostFlags |= HOSTDELETED;
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
/* release host because it was allocated by h_Alloc_r */
h_Release_r(host);
/* the new host is held and locked */
} else {
/* This really is a new host */
- hashInsertUuid_r(&identP->uuid, host);
+ h_AddHostToUuidHashTable_r(&identP->uuid, host);
cb_conn = host->callback_rxcon;
rx_GetConnection(cb_conn);
H_UNLOCK;
else
host->hostFlags &= ~(HERRORTRANS);
host->hostFlags |= ALTADDR; /* host structure initialization complete */
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
}
if (caps.Capabilities_val)
void
h_InitHostPackage()
{
+ memset(&nulluuid, 0, sizeof(afsUUID));
afsconf_GetLocalCell(confDir, localcellname, PR_MAXNAMELEN);
if (num_lrealms == -1) {
int i;
break;
}
- if (i=0) {
+ if (i == 0) {
ViceLog(0,
("afs_krb_get_lrealm failed, using %s.\n",
localcellname));
}
H_UNLOCK;
- code = pr_NameToId(&lnames, &lids);
+ code = hpr_NameToId(&lnames, &lids);
H_LOCK;
if (code == 0) {
if (lids.idlist_val) {
int created = 0;
client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
- if (client) {
+ if (client && client->sid == rxr_CidOf(tcon)
+ && client->VenusEpoch == rxr_GetEpoch(tcon)) {
client->refCount++;
h_Hold_r(client->host);
if (!client->deleted && client->prfail != 2) {
H_UNLOCK;
ObtainWriteLock(&client->lock); /* released at end */
H_LOCK;
+ } else {
+ client = NULL;
}
authClass = rx_SecurityClassOf((struct rx_connection *)tcon);
expTime = 0x7fffffff;
} else if (authClass == 2) {
afs_int32 kvno;
-
+
/* kerberos ticket */
code = rxkad_GetServerInfo(tcon, /*level */ 0, &expTime,
tname, tinst, tcell, &kvno);
if (!client) { /* loop */
host = h_GetHost_r(tcon); /* Returns it h_Held */
+ if (!host)
+ return 0;
+
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));
- }
- client->tcon = (struct rx_connection *)0;
- }
client->refCount++;
H_UNLOCK;
ObtainWriteLock(&client->lock);
client->authClass = authClass; /* rx only */
client->sid = rxr_CidOf(tcon);
client->VenusEpoch = rxr_GetEpoch(tcon);
- client->CPS.prlist_val = 0;
+ client->CPS.prlist_val = NULL;
client->CPS.prlist_len = 0;
h_Unlock_r(host);
}
client->CPS.prlist_val = AnonCPS.prlist_val;
} else {
H_UNLOCK;
- code = pr_GetCPS(viceid, &client->CPS);
+ code = hpr_GetCPS(viceid, &client->CPS);
H_LOCK;
if (code) {
char hoststr[16];
* the RPC from the other client structure's rock.
*/
oldClient = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
- if (oldClient && oldClient->tcon == tcon) {
+ if (oldClient && oldClient != client && oldClient->sid == rxr_CidOf(tcon)
+ && oldClient->VenusEpoch == rxr_GetEpoch(tcon)) {
char hoststr[16];
if (!oldClient->deleted) {
/* if we didn't create it, it's not ours to put back */
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--;
FreeCE(client);
created = 0;
}
- ObtainWriteLock(&oldClient->lock);
oldClient->refCount++;
+ H_UNLOCK;
+ ObtainWriteLock(&oldClient->lock);
+ H_LOCK;
client = oldClient;
} else {
- 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),
h_Unlock_r(host);
CurrentConnections++; /* increment number of connections */
}
- client->tcon = tcon;
rx_SetSpecific(tcon, rxcon_client_key, client);
ReleaseWriteLock(&client->lock);
H_LOCK;
*cp = NULL;
client = (struct client *)rx_GetSpecific(tcon, rxcon_client_key);
- if (client == NULL || client->tcon == NULL) {
+ if (client == 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) {
+ if (rxr_CidOf(tcon) != client->sid || rxr_GetEpoch(tcon) != client->VenusEpoch) {
ViceLog(0,
("GetClient: tcon %x tcon sid %d client sid %d\n",
- client->tcon, rxr_CidOf(client->tcon), client->sid));
+ tcon, rxr_CidOf(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));
- assert(0);
- }
if (client && client->LastCall > client->expTime && client->expTime) {
char hoststr[16];
ViceLog(1,
static char User[PR_MAXNAMELEN + 1];
namelist lnames;
idlist lids;
+ afs_int32 code;
lids.idlist_len = 1;
lids.idlist_val = (afs_int32 *) malloc(1 * sizeof(afs_int32));
lnames.namelist_len = 0;
lnames.namelist_val = (prname *) 0;
lids.idlist_val[0] = client->ViceId;
- if (pr_IdToName(&lids, &lnames)) {
+ if (hpr_IdToName(&lids, &lnames)) {
/* We need to free id we alloced above! */
free(lids.idlist_val);
return "*UNKNOWN USER NAME*";
char tmpStr[256];
char tbuffer[32];
char hoststr[16];
+ time_t LastCall, expTime;
H_LOCK;
+ LastCall = host->LastCall;
if (host->hostFlags & HOSTDELETED) {
H_UNLOCK;
return held;
"Host %s:%d down = %d, LastCall %s",
afs_inet_ntoa_r(host->host, hoststr),
ntohs(host->port), (host->hostFlags & VENUSDOWN),
- afs_ctime((time_t *) & host->LastCall, tbuffer,
+ 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) {
+ expTime = client->expTime;
(void)afs_snprintf(tmpStr, sizeof tmpStr,
" user id=%d, name=%s, sl=%s till %s",
client->ViceId, h_UserName(client),
authClass ? "Authenticated" :
"Not authenticated",
client->
- authClass ? afs_ctime((time_t *) & client->
- expTime, tbuffer,
+ 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);
- }
(void)afs_snprintf(tmpStr, sizeof tmpStr, " CPS-%d is [",
client->CPS.prlist_len);
(void)STREAM_WRITE(tmpStr, strlen(tmpStr), 1, file);
} /*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 */
+
/*
* This counts the number of workstations, the number of active workstations,
* Since it can serialize them, and pile up, it should be a separate LWP
* from other events.
*/
-int
+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;
for (client = host->FirstClient; client; client = client->next) {
}
if (host->LastCall < checktime) {
h_Lock_r(host);
+ host->hostFlags |= HWHO_INPROGRESS;
if (!(host->hostFlags & HOSTDELETED)) {
cb_conn = host->callback_rxcon;
rx_GetConnection(cb_conn);
}
} else {
if (!(host->hostFlags & VENUSDOWN) && host->cblist) {
+ char hoststr[16];
+ (void)afs_inet_ntoa_r(host->host, hoststr);
if (host->interface) {
afsUUID uuid = host->interface->uuid;
H_UNLOCK;
H_LOCK;
if (code) {
if (MultiProbeAlternateAddress_r(host)) {
- char hoststr[16];
- (void)afs_inet_ntoa_r(host->host, hoststr);
- ViceLog(0,
- ("ProbeUuid failed for host %s:%d\n",
- hoststr, ntohs(host->port)));
+ ViceLog(0,("CheckHost: Probing all interfaces of host %s:%d failed, code %d\n",
+ hoststr, ntohs(host->port), code));
host->hostFlags |= VENUSDOWN;
}
}
code = RXAFSCB_Probe(cb_conn);
H_LOCK;
if (code) {
- char hoststr[16];
- (void)afs_inet_ntoa_r(host->host, hoststr);
ViceLog(0,
- ("Probe failed for host %s:%d\n", hoststr,
- ntohs(host->port)));
+ ("CheckHost: Probe failed for host %s:%d, code %d\n",
+ hoststr, ntohs(host->port), code));
host->hostFlags |= VENUSDOWN;
}
}
cb_conn=NULL;
H_LOCK;
}
+ host->hostFlags &= ~HWHO_INPROGRESS;
h_Unlock_r(host);
}
H_UNLOCK;
* This routine is called roughly every 5 minutes.
*/
void
-h_CheckHosts()
+h_CheckHosts(void)
{
afs_uint32 now = FT_ApproxTime();
afs_uint16 myPort;
int found;
struct Interface *interface;
+ char hoststr[16];
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 */
+ ViceLog(125,
+ ("initInterfaceAddr : host %s:%d numAddr %d\n",
+ afs_inet_ntoa_r(myAddr, hoststr), ntohs(myPort), number));
+
/* validation checks */
if (number < 0 || number > AFS_MAX_INTERFACE_ADDR) {
ViceLog(0,
- ("Number of alternate addresses returned is %d\n", number));
+ ("Invalid number of alternate addresses is %d\n", number));
return -1;
}
host->interface = interface;
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)));
/* deleted a HashChain structure for this address and host */
/* returns 1 on success */
static int
-hashDelete_r(afs_uint32 addr, afs_uint16 port, struct host *host)
+h_DeleteHostFromHashTableByAddr_r(afs_uint32 addr, afs_uint16 port, struct host *host)
{
int flag;
register struct h_hashChain **hp, *th;
git://git.openafs.org / openafs.git / blobdiff