#include "afsincludes.h" /* Afs-based standard headers */
#include "afs/afs_stats.h" /* afs statistics */
-#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
+#include "afs/afs_axscache.h"
/* Exported variables */
afs_rwlock_t afs_xuser;
#ifndef AFS_PAG_MANAGER
/* Forward declarations */
-void afs_ResetAccessCache(afs_int32 uid, int alock);
-
-/*
- * Called with afs_xuser, afs_xserver and afs_xconn locks held, to delete
- * appropriate conn structures for au
- */
-static void
-RemoveUserConns(struct unixuser *au)
-{
- int i;
- struct server *ts;
- struct srvAddr *sa;
- struct afs_conn *tc, **lc;
-
- AFS_STATCNT(RemoveUserConns);
- for (i = 0; i < NSERVERS; i++) {
- for (ts = afs_servers[i]; ts; ts = ts->next) {
- for (sa = ts->addr; sa; sa = sa->next_sa) {
- lc = &sa->conns;
- for (tc = *lc; tc; lc = &tc->next, tc = *lc) {
- if (tc->user == au && tc->refCount == 0) {
- *lc = tc->next;
- AFS_GUNLOCK();
- rx_DestroyConnection(tc->id);
- AFS_GLOCK();
- afs_osi_Free(tc, sizeof(struct afs_conn));
- break; /* at most one instance per server */
- } /*Found unreferenced connection for user */
- } /*For each connection on the server */
- }
- } /*For each server on chain */
- } /*For each chain */
-
-} /*RemoveUserConns */
+void afs_ResetAccessCache(afs_int32 uid, afs_int32 cell, int alock);
#endif /* !AFS_PAG_MANAGER */
if (delFlag) {
*lu = tu->next;
#ifndef AFS_PAG_MANAGER
- RemoveUserConns(tu);
+ afs_ReleaseConnsUser(tu);
#endif
afs_FreeTokens(&tu->tokens);
} /*afs_GCUserData */
+static struct unixuser *
+afs_FindUserNoLock(afs_int32 auid, afs_int32 acell)
+{
+ struct unixuser *tu;
+ afs_int32 i;
+
+ AFS_STATCNT(afs_FindUser);
+ i = UHash(auid);
+ for (tu = afs_users[i]; tu; tu = tu->next) {
+ if (tu->uid == auid && ((tu->cell == acell) || (acell == -1))) {
+ tu->refCount++;
+ return tu;
+ }
+ }
+ return NULL;
+
+}
#ifndef AFS_PAG_MANAGER
/*
int i;
struct unixuser *tu;
afs_int32 now;
+ struct vcache *tvc;
+ struct axscache *tofreelist;
+ int do_scan = 0;
AFS_STATCNT(afs_CheckCacheResets);
ObtainReadLock(&afs_xvcache);
now = osi_Time();
for (i = 0; i < NUSERS; i++) {
for (tu = afs_users[i]; tu; tu = tu->next) {
- afs_int32 uid;
-
/*
* If tokens are still good and user has Kerberos tickets,
* check expiration
tu->states |= (UTokensBad | UNeedsReset);
}
}
- if (tu->states & UNeedsReset) {
- tu->states &= ~UNeedsReset;
- uid = tu->uid;
- afs_ResetAccessCache(uid, 0);
+ if (tu->states & UNeedsReset)
+ do_scan = 1;
+ }
+ }
+ /* Skip the potentially expensive scan if nothing to do */
+ if (!do_scan)
+ goto done;
+
+ tofreelist = NULL;
+ for (i = 0; i < VCSIZE; i++) {
+ for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
+ /* really should do this under cache write lock, but that.
+ * is hard to under locking hierarchy */
+ if (tvc->Access) {
+ struct axscache **ac, **nac;
+
+ for ( ac = &tvc->Access; *ac;) {
+ nac = &(*ac)->next;
+ tu = afs_FindUserNoLock((*ac)->uid, tvc->f.fid.Cell);
+ if (tu == NULL || (tu->states & UNeedsReset)) {
+ struct axscache *tmp;
+ tmp = *ac;
+ *ac = *nac;
+ tmp->next = tofreelist;
+ tofreelist = tmp;
+ } else
+ ac = nac;
+ if (tu != NULL)
+ tu->refCount--;
+ }
}
}
}
+ afs_FreeAllAxs(&tofreelist);
+ for (i = 0; i < NUSERS; i++) {
+ for (tu = afs_users[i]; tu; tu = tu->next) {
+ if (tu->states & UNeedsReset)
+ tu->states &= ~UNeedsReset;
+ }
+ }
+
+done:
ReleaseReadLock(&afs_xuser);
ReleaseReadLock(&afs_xvcache);
} /*afs_CheckTokenCache */
+/* Remove any access caches associated with this uid+cell
+ * by scanning the entire vcache table. Specify cell=-1
+ * to remove all access caches associated with this uid
+ * regardless of cell.
+ */
void
-afs_ResetAccessCache(afs_int32 uid, int alock)
+afs_ResetAccessCache(afs_int32 uid, afs_int32 cell, int alock)
{
int i;
struct vcache *tvc;
for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
/* really should do this under cache write lock, but that.
* is hard to under locking hierarchy */
- if (tvc->Access && (ac = afs_FindAxs(tvc->Access, uid))) {
- afs_RemoveAxs(&tvc->Access, ac);
+ if (tvc->Access && (cell == -1 || tvc->f.fid.Cell == cell)) {
+ ac = afs_FindAxs(tvc->Access, uid);
+ if (ac) {
+ afs_RemoveAxs(&tvc->Access, ac);
+ }
}
}
}
void
afs_ResetUserConns(struct unixuser *auser)
{
- int i;
+ int i, j;
struct srvAddr *sa;
- struct afs_conn *tc;
+ struct sa_conn_vector *tcv;
AFS_STATCNT(afs_ResetUserConns);
ObtainReadLock(&afs_xsrvAddr);
for (i = 0; i < NSERVERS; i++) {
for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
- for (tc = sa->conns; tc; tc = tc->next) {
- if (tc->user == auser) {
- tc->forceConnectFS = 1;
+ for (tcv = sa->conns; tcv; tcv = tcv->next) {
+ if (tcv->user == auser) {
+ for(j = 0; j < CVEC_LEN; ++j) {
+ (tcv->cvec[j]).forceConnectFS = 1;
+ }
}
}
}
ReleaseWriteLock(&afs_xconn);
ReleaseReadLock(&afs_xsrvAddr);
- afs_ResetAccessCache(auser->uid, 1);
+ afs_ResetAccessCache(auser->uid, auser->cell, 1);
auser->states &= ~UNeedsReset;
} /*afs_ResetUserConns */
#endif /* !AFS_PAG_MANAGER */
afs_FindUser(afs_int32 auid, afs_int32 acell, afs_int32 locktype)
{
struct unixuser *tu;
- afs_int32 i;
- AFS_STATCNT(afs_FindUser);
- i = UHash(auid);
ObtainWriteLock(&afs_xuser, 99);
- for (tu = afs_users[i]; tu; tu = tu->next) {
- if (tu->uid == auid && ((tu->cell == acell) || (acell == -1))) {
- tu->refCount++;
- ReleaseWriteLock(&afs_xuser);
- return tu;
- }
- }
+ tu = afs_FindUserNoLock(auid, acell);
ReleaseWriteLock(&afs_xuser);
- return NULL;
-
+ if (tu)
+ afs_LockUser(tu, locktype, 365);
+ return tu;
} /*afs_FindUser */
/* Here we setup the real cell for the client */
tu->cell = acell;
tu->refCount++;
- ReleaseWriteLock(&afs_xuser);
- return tu;
+ goto done;
} else if (tu->cell == acell || acell == -1) {
tu->refCount++;
- ReleaseWriteLock(&afs_xuser);
- return tu;
+ goto done;
}
}
}
afs_stats_cmfullperf.authent.PAGCreations++;
#endif /* AFS_NOSTATS */
memset(tu, 0, sizeof(struct unixuser));
+ AFS_RWLOCK_INIT(&tu->lock, "unixuser lock");
tu->next = afs_users[i];
afs_users[i] = tu;
if (RmtUser) {
tu->viceId = UNDEFVID;
tu->refCount = 1;
tu->tokenTime = osi_Time();
+
+ done:
ReleaseWriteLock(&afs_xuser);
+ afs_LockUser(tu, locktype, 364);
return tu;
} /*afs_GetUser */
+void
+afs_LockUser(struct unixuser *au, afs_int32 locktype,
+ unsigned int src_indicator)
+{
+ switch (locktype) {
+ case READ_LOCK:
+ ObtainReadLock(&au->lock);
+ break;
+ case WRITE_LOCK:
+ ObtainWriteLock(&au->lock, src_indicator);
+ break;
+ case SHARED_LOCK:
+ ObtainSharedLock(&au->lock, src_indicator);
+ break;
+ default:
+ /* noop */
+ break;
+ }
+}
void
afs_PutUser(struct unixuser *au, afs_int32 locktype)
{
AFS_STATCNT(afs_PutUser);
+
+ switch (locktype) {
+ case READ_LOCK:
+ ReleaseReadLock(&au->lock);
+ break;
+ case WRITE_LOCK:
+ ReleaseWriteLock(&au->lock);
+ break;
+ case SHARED_LOCK:
+ ReleaseSharedLock(&au->lock);
+ break;
+ default:
+ /* noop */
+ break;
+ }
+
--au->refCount;
} /*afs_PutUser */
git://git.openafs.org / openafs.git / blobdiff