/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
- *
+ *
* 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
#include <afsconfig.h>
#include "afs/param.h"
-RCSID
- ("$Header$");
#include "afs/stds.h"
#include "afs/sysincludes.h" /* Standard vendor system headers */
#ifdef AFS_SGI62_ENV
#include "h/hashing.h"
#endif
-#if !defined(AFS_HPUX110_ENV) && !defined(AFS_LINUX20_ENV) && !defined(AFS_FBSD_ENV) && !defined(AFS_DARWIN60_ENV)
+#if !defined(AFS_HPUX110_ENV) && !defined(AFS_LINUX20_ENV) && !defined(AFS_FBSD_ENV) && !defined(AFS_DARWIN_ENV)
#include <netinet/in_var.h>
#endif
#endif /* !UKERNEL */
#include "afs/afs_util.h"
#include "afs/unified_afs.h"
-#if defined(AFS_SUN56_ENV)
+#if defined(AFS_SUN5_ENV)
#include <inet/led.h>
#include <inet/common.h>
-#if defined(AFS_SUN58_ENV)
#include <netinet/ip6.h>
-#endif
#include <inet/ip.h>
#endif
-
/* shouldn't do it this way, but for now will do */
#ifndef ERROR_TABLE_BASE_U
#define ERROR_TABLE_BASE_U (5376L)
* 0 if the vldb record for a specific volume is different from what
* we have cached -- perhaps the volume has moved.
* 1 if the vldb record is the same
- * 2 if we can't tell if it's the same or not.
+ * 2 if we can't tell if it's the same or not.
*
* If 0, the caller will probably start over at the beginning of our
* list of servers for this volume and try to find one that is up. If
VLDB_Same(struct VenusFid *afid, struct vrequest *areq)
{
struct vrequest treq;
- struct conn *tconn;
+ struct afs_conn *tconn;
int i, type = 0;
union {
struct vldbentry tve;
char *bp, tbuf[CVBS]; /* biggest volume id is 2^32, ~ 4*10^9 */
unsigned int changed;
struct server *(oldhosts[NMAXNSERVERS]);
+ struct rx_connection *rxconn;
AFS_STATCNT(CheckVLDB);
afs_FinalizeReq(areq);
if ((i = afs_InitReq(&treq, afs_osi_credp)))
return DUNNO;
v = afs_osi_Alloc(sizeof(*v));
+ osi_Assert(v != NULL);
tcell = afs_GetCell(afid->Cell, READ_LOCK);
bp = afs_cv2string(&tbuf[CVBS], afid->Fid.Volume);
do {
VSleep(2); /* Better safe than sorry. */
tconn =
afs_ConnByMHosts(tcell->cellHosts, tcell->vlport, tcell->cellNum,
- &treq, SHARED_LOCK);
+ &treq, SHARED_LOCK, &rxconn);
if (tconn) {
- if (tconn->srvr->server->flags & SNO_LHOSTS) {
+ if ( tconn->parent->srvr->server->flags & SNO_LHOSTS) {
type = 0;
RX_AFS_GUNLOCK();
- i = VL_GetEntryByNameO(tconn->id, bp, &v->tve);
+ i = VL_GetEntryByNameO(rxconn, bp, &v->tve);
RX_AFS_GLOCK();
- } else if (tconn->srvr->server->flags & SYES_LHOSTS) {
+ } else if (tconn->parent->srvr->server->flags & SYES_LHOSTS) {
type = 1;
RX_AFS_GUNLOCK();
- i = VL_GetEntryByNameN(tconn->id, bp, &v->ntve);
+ i = VL_GetEntryByNameN(rxconn, bp, &v->ntve);
RX_AFS_GLOCK();
} else {
type = 2;
RX_AFS_GUNLOCK();
- i = VL_GetEntryByNameU(tconn->id, bp, &v->utve);
+ i = VL_GetEntryByNameU(rxconn, bp, &v->utve);
RX_AFS_GLOCK();
- if (!(tconn->srvr->server->flags & SVLSRV_UUID)) {
+ if (!(tconn->parent->srvr->server->flags & SVLSRV_UUID)) {
if (i == RXGEN_OPCODE) {
type = 1;
RX_AFS_GUNLOCK();
- i = VL_GetEntryByNameN(tconn->id, bp, &v->ntve);
+ i = VL_GetEntryByNameN(rxconn, bp, &v->ntve);
RX_AFS_GLOCK();
if (i == RXGEN_OPCODE) {
type = 0;
- tconn->srvr->server->flags |= SNO_LHOSTS;
+ tconn->parent->srvr->server->flags |= SNO_LHOSTS;
RX_AFS_GUNLOCK();
- i = VL_GetEntryByNameO(tconn->id, bp, &v->tve);
+ i = VL_GetEntryByNameO(rxconn, bp, &v->tve);
RX_AFS_GLOCK();
} else if (!i)
- tconn->srvr->server->flags |= SYES_LHOSTS;
+ tconn->parent->srvr->server->flags |= SYES_LHOSTS;
} else if (!i)
- tconn->srvr->server->flags |= SVLSRV_UUID;
+ tconn->parent->srvr->server->flags |= SVLSRV_UUID;
}
lastcode = i;
}
} else
i = -1;
- } while (afs_Analyze(tconn, i, NULL, &treq, -1, /* no op code for this */
+ } while (afs_Analyze(tconn, rxconn, i, NULL, &treq, -1, /* no op code for this */
SHARED_LOCK, tcell));
afs_PutCell(tcell, READ_LOCK);
for (i = 0; i < NMAXNSERVERS && tvp->serverHost[i]; i++) {
oldhosts[i] = tvp->serverHost[i];
}
+ ReleaseWriteLock(&tvp->lock);
if (type == 2) {
- InstallUVolumeEntry(tvp, &v->utve, afid->Cell, tcell, &treq);
+ LockAndInstallUVolumeEntry(tvp, &v->utve, afid->Cell, tcell, &treq);
} else if (type == 1) {
- InstallNVolumeEntry(tvp, &v->ntve, afid->Cell);
+ LockAndInstallNVolumeEntry(tvp, &v->ntve, afid->Cell);
} else {
- InstallVolumeEntry(tvp, &v->tve, afid->Cell);
+ LockAndInstallVolumeEntry(tvp, &v->tve, afid->Cell);
}
if (i < NMAXNSERVERS && tvp->serverHost[i]) {
* areq : The request record associated with this operation.
* afid : The FID of the file involved in the action. This argument
* may be null if none was involved.
- * tsp : pointer to a server struct for the server we wish to
- * blacklist.
+ * tsp : pointer to a server struct for the server we wish to
+ * blacklist.
*
* Returns:
* Non-zero value if further servers are available to try,
* As advertised.
*
* NOTE:
- * The afs_Conn* routines use the list of invalidated servers to
+ * The afs_Conn* routines use the list of invalidated servers to
* avoid reusing a server marked as invalid for this request.
*------------------------------------------------------------------------*/
-static afs_int32
-afs_BlackListOnce(struct vrequest *areq, struct VenusFid *afid,
+static afs_int32
+afs_BlackListOnce(struct vrequest *areq, struct VenusFid *afid,
struct server *tsp)
{
struct volume *tvp;
if (afid) {
tvp = afs_FindVolume(afid, READ_LOCK);
if (tvp) {
- for (i = 0; i < MAXHOSTS; i++) {
+ for (i = 0; i < AFS_MAXHOSTS; i++) {
if (tvp->serverHost[i] == tsp) {
areq->skipserver[i] = 1;
}
if (tvp->serverHost[i] &&
- !(tvp->serverHost[i]->addr->sa_flags &
+ (tvp->serverHost[i]->addr->sa_flags &
SRVR_ISDOWN)) {
areq->skipserver[i] = 1;
}
}
+ for (i = 0; i < AFS_MAXHOSTS; i++) {
+ if (tvp->serverHost[i] && areq->skipserver[i] == 0) {
+ serversleft = 1;
+ break;
+ }
+ }
afs_PutVolume(tvp, READ_LOCK);
- }
- }
- for (i = 0; i < MAXHOSTS; i++) {
- if (areq->skipserver[i] == 0) {
- serversleft = 1;
- break;
+ return serversleft;
}
}
return serversleft;
}
+/*------------------------------------------------------------------------
+ * afs_ClearStatus
+ *
+ * Description:
+ * Analyze the outcome of an RPC operation, taking whatever support
+ * actions are necessary.
+ *
+ * Arguments:
+ * afid : The FID of the file involved in the action. This argument
+ * may be null if none was involved.
+ * op : which RPC we are analyzing.
+ * avp : A pointer to the struct volume, if we already have one.
+ *
+ * Returns:
+ * Non-zero value if the related RPC operation can be retried,
+ * zero otherwise.
+ *
+ * Environment:
+ * This routine is called when we got a network error,
+ * and discards state if the operation was a data-mutating
+ * operation.
+ *------------------------------------------------------------------------*/
+static int
+afs_ClearStatus(struct VenusFid *afid, int op, struct volume *avp)
+{
+ struct volume *tvp = NULL;
+
+ /* if it's not a write op, we have nothing to veto and shouldn't clear. */
+ if (!AFS_STATS_FS_RPCIDXES_ISWRITE(op)) {
+ return 1;
+ }
+
+ if (avp)
+ tvp = avp;
+ else if (afid)
+ tvp = afs_FindVolume(afid, READ_LOCK);
+
+ /* don't assume just discarding will fix if no cached volume */
+ if (tvp) {
+ struct vcache *tvc;
+ ObtainReadLock(&afs_xvcache);
+ if ((tvc = afs_FindVCache(afid, 0, 0))) {
+ ReleaseReadLock(&afs_xvcache);
+ tvc->f.states &= ~(CStatd | CUnique);
+ afs_PutVCache(tvc);
+ } else {
+ ReleaseReadLock(&afs_xvcache);
+ }
+ }
+ if (!avp)
+ afs_PutVolume(tvp, READ_LOCK);
+
+ /* not retriable: we may have raced ourselves */
+ return 0;
+}
/*------------------------------------------------------------------------
* EXPORTED afs_Analyze
* if this is a temporary or permanent error.
*------------------------------------------------------------------------*/
int
-afs_Analyze(register struct conn *aconn, afs_int32 acode,
- struct VenusFid *afid, register struct vrequest *areq, int op,
- afs_int32 locktype, struct cell *cellp)
+afs_Analyze(struct afs_conn *aconn, struct rx_connection *rxconn,
+ afs_int32 acode, struct VenusFid *afid, struct vrequest *areq,
+ int op, afs_int32 locktype, struct cell *cellp)
{
afs_int32 i;
struct srvAddr *sa;
struct server *tsp;
- struct volume *tvp;
+ struct volume *tvp = NULL;
afs_int32 shouldRetry = 0;
afs_int32 serversleft = 1;
struct afs_stats_RPCErrors *aerrP;
- afs_int32 markeddown;
+ afs_uint32 address;
-
- if (AFS_IS_DISCONNECTED) {
+ if (AFS_IS_DISCONNECTED && !AFS_IN_SYNC) {
+ /* On reconnection, act as connected. XXX: for now.... */
/* SXW - This may get very tired after a while. We should try and
* intercept all RPCs before they get here ... */
/*printf("afs_Analyze: disconnected\n");*/
if (aconn) {
/* SXW - I suspect that this will _never_ happen - we shouldn't
* get a connection because we're disconnected !!!*/
- afs_PutConn(aconn, locktype);
+ afs_PutConn(aconn, rxconn, locktype);
}
return 0;
}
-
+
AFS_STATCNT(afs_Analyze);
afs_Trace4(afs_iclSetp, CM_TRACE_ANALYZE, ICL_TYPE_INT32, op,
ICL_TYPE_POINTER, aconn, ICL_TYPE_INT32, acode, ICL_TYPE_LONG,
&& tvp->serverHost[0]->cell) ? tvp->serverHost[0]->
cell->cellName : ""));
- for (i = 0; i < MAXHOSTS; i++) {
+ for (i = 0; i < AFS_MAXHOSTS; i++) {
if (tvp->status[i] != not_busy && tvp->status[i] != offline) {
tvp->status[i] = not_busy;
}
return shouldRetry; /* should retry */
}
- if (!aconn || !aconn->srvr) {
+ if (!aconn || !aconn->parent->srvr) {
if (!areq->volumeError) {
if (aerrP)
(aerrP->err_Network)++;
((afid && afs_IsPrimaryCellNum(afid->Cell))
|| (cellp && afs_IsPrimaryCell(cellp)))) {
if (!afid) {
- afs_warnuser
- ("afs: hard-mount waiting for a vlserver to return to service\n");
+ static int afs_vl_hm = 0;
+ int warn = 0;
+ if (!afs_vl_hm) {
+ afs_vl_hm = warn = 1;
+ }
+ if (warn) {
+ afs_warnuser
+ ("afs: hard-mount waiting for a vlserver to return to service\n");
+ }
VSleep(hm_retry_int);
afs_CheckServers(1, cellp);
shouldRetry = 1;
+
+ if (warn) {
+ afs_vl_hm = 0;
+ }
} else {
+ static int afs_unknown_vhm = 0;
+ int warn = 0, vp_vhm = 0;
+
tvp = afs_FindVolume(afid, READ_LOCK);
if (!tvp || (tvp->states & VRO)) {
shouldRetry = hm_retry_RO;
} else {
shouldRetry = hm_retry_RW;
}
+
+ /* Set 'warn' if we should afs_warnuser. Only let one
+ * caller call afs_warnuser per hm_retry_int interval per
+ * volume. */
+ if (shouldRetry) {
+ if (tvp) {
+ if (!(tvp->states & VHardMount)) {
+ tvp->states |= VHardMount;
+ warn = vp_vhm = 1;
+ }
+ } else {
+ if (!afs_unknown_vhm) {
+ afs_unknown_vhm = 1;
+ warn = 1;
+ }
+ }
+ }
+
if (tvp)
afs_PutVolume(tvp, READ_LOCK);
+
if (shouldRetry) {
- afs_warnuser
- ("afs: hard-mount waiting for volume %u\n",
- afid->Fid.Volume);
+ if (warn) {
+ afs_warnuser
+ ("afs: hard-mount waiting for volume %u\n",
+ afid->Fid.Volume);
+ }
+
VSleep(hm_retry_int);
afs_CheckServers(1, cellp);
+ /* clear the black listed servers on this request. */
+ memset(areq->skipserver, 0, sizeof(areq->skipserver));
+
+ if (vp_vhm) {
+ tvp = afs_FindVolume(afid, READ_LOCK);
+ if (tvp) {
+ tvp->states &= ~VHardMount;
+ afs_PutVolume(tvp, READ_LOCK);
+ }
+ } else if (warn) {
+ afs_unknown_vhm = 0;
+ }
}
}
} /* if (hm_retry_int ... */
else {
- areq->networkError = 1;
+ if (acode == RX_MSGSIZE)
+ shouldRetry = 1;
+ else {
+ areq->networkError = 1;
+ /* do not promote to shouldRetry if not already */
+ if (afs_ClearStatus(afid, op, NULL) == 0)
+ shouldRetry = 0;
+ }
}
}
return shouldRetry;
}
/* Find server associated with this connection. */
- sa = aconn->srvr;
+ sa = aconn->parent->srvr;
tsp = sa->server;
+ address = ntohl(sa->sa_ip);
/* Before we do anything with acode, make sure we translate it back to
* a system error */
if (areq->volumeError) {
tvp = afs_FindVolume(afid, READ_LOCK);
if (tvp) {
- for (i = 0; i < MAXHOSTS; i++) {
+ for (i = 0; i < AFS_MAXHOSTS; i++) {
if (tvp->serverHost[i] == tsp) {
tvp->status[i] = not_busy;
}
}
}
- afs_PutConn(aconn, locktype);
+ afs_PutConn(aconn, rxconn, locktype);
return 0;
}
/* If network troubles, mark server as having bogued out again. */
- /* VRESTARTING is < 0 because of backward compatibility issues
+ /* VRESTARTING is < 0 because of backward compatibility issues
* with 3.4 file servers and older cache managers */
#ifdef AFS_64BIT_CLIENT
if (acode == -455)
acode = 455;
#endif /* AFS_64BIT_CLIENT */
if ((acode < 0) && (acode != VRESTARTING)) {
+ if (acode == RX_MSGSIZE) {
+ shouldRetry = 1;
+ goto out;
+ }
if (acode == RX_CALL_TIMEOUT) {
serversleft = afs_BlackListOnce(areq, afid, tsp);
- areq->idleError++;
- if (serversleft) {
- shouldRetry = 1;
- } else {
+ if (afid)
+ tvp = afs_FindVolume(afid, READ_LOCK);
+ if ((serversleft == 0) && tvp &&
+ ((tvp->states & VRO) || (tvp->states & VBackup))) {
shouldRetry = 0;
+ } else {
+ shouldRetry = 1;
}
+ if (!afid || !tvp || (tvp->states & VRO))
+ areq->idleError++;
+ else if (afs_ClearStatus(afid, op, tvp) == 0)
+ shouldRetry = 0;
+
+ if (tvp)
+ afs_PutVolume(tvp, READ_LOCK);
/* By doing this, we avoid ever marking a server down
- * in an idle timeout case. That's because the server is
+ * in an idle timeout case. That's because the server is
* still responding and may only be letting a single vnode
* time out. We otherwise risk having the server continually
- * be marked down, then up, then down again...
+ * be marked down, then up, then down again...
*/
goto out;
- }
- markeddown = afs_ServerDown(sa);
+ }
+ afs_ServerDown(sa, acode);
ForceNewConnections(sa); /**multi homed clients lock:afs_xsrvAddr? */
if (aerrP)
(aerrP->err_Server)++;
-#if 0
- /* retry *once* when the server is timed out in case of NAT */
- if (markeddown && acode == RX_CALL_DEAD) {
- aconn->forceConnectFS = 1;
- shouldRetry = 1;
- }
-#endif
}
if (acode == VBUSY || acode == VRESTARTING) {
tvp = afs_FindVolume(afid, READ_LOCK);
if (tvp) {
- for (i = 0; i < MAXHOSTS; i++) {
+ for (i = 0; i < AFS_MAXHOSTS; i++) {
if (tvp->serverHost[i] == tsp) {
tvp->status[i] = rdwr_busy; /* can't tell which yet */
/* to tell which, have to look at the op code. */
}
afs_PutVolume(tvp, READ_LOCK);
} else {
- afs_warnuser("afs: Waiting for busy volume %u in cell %s\n",
- (afid ? afid->Fid.Volume : 0), tsp->cell->cellName);
+ afs_warnuser("afs: Waiting for busy volume %u in cell %s (server %d.%d.%d.%d)\n",
+ (afid ? afid->Fid.Volume : 0), tsp->cell->cellName,
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
VSleep(afs_BusyWaitPeriod); /* poll periodically */
}
shouldRetry = 1;
aconn->forceConnectFS = 1;
} else if (acode == RXKADEXPIRED) {
aconn->forceConnectFS = 0; /* don't check until new tokens set */
- aconn->user->states |= UTokensBad;
+ aconn->parent->user->states |= UTokensBad;
+ afs_NotifyUser(tu, UTokensDropped);
afs_warnuser
- ("afs: Tokens for user of AFS id %d for cell %s have expired\n",
- tu->vid, aconn->srvr->server->cell->cellName);
+ ("afs: Tokens for user of AFS id %d for cell %s have expired (server %d.%d.%d.%d)\n",
+ tu->viceId, aconn->parent->srvr->server->cell->cellName,
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
} else {
serversleft = afs_BlackListOnce(areq, afid, tsp);
areq->tokenError++;
if (serversleft) {
afs_warnuser
- ("afs: Tokens for user of AFS id %d for cell %s: rxkad error=%d\n",
- tu->vid, aconn->srvr->server->cell->cellName, acode);
+ ("afs: Tokens for user of AFS id %d for cell %s: rxkad error=%d (server %d.%d.%d.%d)\n",
+ tu->viceId, aconn->parent->srvr->server->cell->cellName, acode,
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
shouldRetry = 1;
} else {
areq->tokenError = 0;
aconn->forceConnectFS = 0; /* don't check until new tokens set */
- aconn->user->states |= UTokensBad;
+ aconn->parent->user->states |= UTokensBad;
+ afs_NotifyUser(tu, UTokensDropped);
afs_warnuser
- ("afs: Tokens for user of AFS id %d for cell %s are discarded (rxkad error=%d)\n",
- tu->vid, aconn->srvr->server->cell->cellName, acode);
+ ("afs: Tokens for user of AFS id %d for cell %s are discarded (rxkad error=%d, server %d.%d.%d.%d)\n",
+ tu->viceId, aconn->parent->srvr->server->cell->cellName, acode,
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
}
}
afs_PutUser(tu, READ_LOCK);
aconn->forceConnectFS = 1;
} else if (acode == RXKADEXPIRED) {
aconn->forceConnectFS = 0; /* don't check until new tokens set */
- aconn->user->states |= UTokensBad;
+ aconn->parent->user->states |= UTokensBad;
+ afs_NotifyUser(tu, UTokensDropped);
afs_warnuser
- ("afs: Tokens for user %d for cell %s have expired\n",
- areq->uid, aconn->srvr->server->cell->cellName);
+ ("afs: Tokens for user %d for cell %s have expired (server %d.%d.%d.%d)\n",
+ areq->uid, aconn->parent->srvr->server->cell->cellName,
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
} else {
aconn->forceConnectFS = 0; /* don't check until new tokens set */
- aconn->user->states |= UTokensBad;
+ aconn->parent->user->states |= UTokensBad;
+ afs_NotifyUser(tu, UTokensDropped);
afs_warnuser
- ("afs: Tokens for user %d for cell %s are discarded (rxkad error = %d)\n",
- areq->uid, aconn->srvr->server->cell->cellName, acode);
+ ("afs: Tokens for user %d for cell %s are discarded (rxkad error = %d, server %d.%d.%d.%d)\n",
+ areq->uid, aconn->parent->srvr->server->cell->cellName,
+ acode,
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
+
}
}
shouldRetry = 1; /* Try again (as root). */
}
/* check for ubik errors; treat them like crashed servers */
else if (acode >= ERROR_TABLE_BASE_U && acode < ERROR_TABLE_BASE_U + 255) {
- afs_ServerDown(sa);
+ afs_ServerDown(sa, acode);
if (aerrP)
(aerrP->err_Server)++;
shouldRetry = 1; /* retryable (maybe one is working) */
same = VLDB_Same(afid, areq);
tvp = afs_FindVolume(afid, READ_LOCK);
if (tvp) {
- for (i = 0; i < MAXHOSTS && tvp->serverHost[i]; i++) {
+ for (i = 0; i < AFS_MAXHOSTS && tvp->serverHost[i]; i++) {
if (tvp->serverHost[i] == tsp) {
if (tvp->status[i] == end_not_busy)
tvp->status[i] = offline;
areq->permWriteError = 1;
shouldRetry = 0; /* Other random Vice error. */
} else if (acode == RX_MSGSIZE) { /* same meaning as EMSGSIZE... */
+ afs_warnuser
+ ("afs: Path MTU may have been exceeded, retrying (server %d.%d.%d.%d)\n",
+ (address >> 24), (address >> 16) & 0xff,
+ (address >> 8) & 0xff, (address) & 0xff);
+
VSleep(1); /* Just a hack for desperate times. */
if (aerrP)
(aerrP->err_Other)++;
}
out:
/* now unlock the connection and return */
- afs_PutConn(aconn, locktype);
+ afs_PutConn(aconn, rxconn, locktype);
return (shouldRetry);
} /*afs_Analyze */
git://git.openafs.org / openafs.git / blobdiff