Winbind cache backend functions
Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Gerald Carter 2003
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#define DBGC_CLASS DBGC_WINBIND
struct winbind_cache {
- struct winbindd_methods *backend;
TDB_CONTEXT *tdb;
};
{
extern BOOL opt_nocache;
- if (!wcache) return;
+ if (!wcache)
+ return;
if (wcache->tdb) {
tdb_close(wcache->tdb);
wcache->tdb = NULL;
}
- if (opt_nocache) return;
+ if (opt_nocache)
+ return;
wcache->tdb = tdb_open_log(lock_path("winbindd_cache.tdb"), 5000,
TDB_CLEAR_IF_FIRST, O_RDWR|O_CREAT, 0600);
if (!wcache->tdb) {
DEBUG(0,("Failed to open winbindd_cache.tdb!\n"));
}
+ DEBUG(10,("wcache_flush_cache success\n"));
}
void winbindd_check_cache_size(time_t t)
/* get the winbind_cache structure */
static struct winbind_cache *get_cache(struct winbindd_domain *domain)
{
- extern struct winbindd_methods msrpc_methods;
struct winbind_cache *ret = wcache;
- if (ret) return ret;
-
- ret = smb_xmalloc(sizeof(*ret));
- ZERO_STRUCTP(ret);
-
- if (!strcmp(domain->name, lp_workgroup()) && (lp_security() == SEC_USER)) {
- extern struct winbindd_methods passdb_methods;
- ret->backend = &passdb_methods;
-
- } else switch (lp_security()) {
+ if (!domain->backend) {
+ extern struct winbindd_methods msrpc_methods;
+ switch (lp_security()) {
#ifdef HAVE_ADS
- case SEC_ADS: {
- extern struct winbindd_methods ads_methods;
- ret->backend = &ads_methods;
- break;
- }
+ case SEC_ADS: {
+ extern struct winbindd_methods ads_methods;
+ /* always obey the lp_security parameter for our domain */
+ if ( strequal(lp_realm(), domain->alt_name) ) {
+ domain->backend = &ads_methods;
+ break;
+ }
+
+ if ( domain->native_mode ) {
+ domain->backend = &ads_methods;
+ break;
+ }
+
+ /* fall through */
+ }
#endif
- default:
- ret->backend = &msrpc_methods;
+ default:
+ domain->backend = &msrpc_methods;
+ }
}
+ if (ret)
+ return ret;
+
+ ret = smb_xmalloc(sizeof(*ret));
+ ZERO_STRUCTP(ret);
+
wcache = ret;
wcache_flush_cache();
*/
static void centry_free(struct cache_entry *centry)
{
- if (!centry) return;
+ if (!centry)
+ return;
SAFE_FREE(centry->data);
free(centry);
}
-
/*
pull a uint32 from a cache entry
*/
{
DOM_SID *sid;
char *sid_string;
+
sid = talloc(mem_ctx, sizeof(*sid));
- if (!sid) return NULL;
+ if (!sid)
+ return NULL;
sid_string = centry_string(centry, mem_ctx);
if (!string_to_sid(sid, sid_string)) {
/* the server is considered down if it can't give us a sequence number */
static BOOL wcache_server_down(struct winbindd_domain *domain)
{
- if (!wcache->tdb) return False;
- return (domain->sequence_number == DOM_SEQUENCE_NONE);
+ BOOL ret;
+
+ if (!wcache->tdb)
+ return False;
+
+ ret = (domain->sequence_number == DOM_SEQUENCE_NONE);
+
+ if (ret)
+ DEBUG(10,("wcache_server_down: server for Domain %s down\n",
+ domain->name ));
+ return ret;
}
static NTSTATUS fetch_cache_seqnum( struct winbindd_domain *domain, time_t now )
fstring key;
uint32 time_diff;
- if (!wcache->tdb)
+ if (!wcache->tdb) {
+ DEBUG(10,("fetch_cache_seqnum: tdb == NULL\n"));
return NT_STATUS_UNSUCCESSFUL;
+ }
snprintf( key, sizeof(key), "SEQNUM/%s", domain->name );
- data = tdb_fetch_by_string( wcache->tdb, key );
- if ( !data.dptr || data.dsize!=8 )
+ data = tdb_fetch_bystring( wcache->tdb, key );
+ if ( !data.dptr || data.dsize!=8 ) {
+ DEBUG(10,("fetch_cache_seqnum: invalid data size key [%s]\n", key ));
return NT_STATUS_UNSUCCESSFUL;
+ }
domain->sequence_number = IVAL(data.dptr, 0);
domain->last_seq_check = IVAL(data.dptr, 4);
/* have we expired? */
time_diff = now - domain->last_seq_check;
- if ( time_diff > lp_winbind_cache_time() )
+ if ( time_diff > lp_winbind_cache_time() ) {
+ DEBUG(10,("fetch_cache_seqnum: timeout [%s][%u @ %u]\n",
+ domain->name, domain->sequence_number,
+ (uint32)domain->last_seq_check));
return NT_STATUS_UNSUCCESSFUL;
+ }
DEBUG(10,("fetch_cache_seqnum: success [%s][%u @ %u]\n",
domain->name, domain->sequence_number,
fstring key_str;
char buf[8];
- if (!wcache->tdb)
+ if (!wcache->tdb) {
+ DEBUG(10,("store_cache_seqnum: tdb == NULL\n"));
return NT_STATUS_UNSUCCESSFUL;
+ }
snprintf( key_str, sizeof(key_str), "SEQNUM/%s", domain->name );
key.dptr = key_str;
data.dptr = buf;
data.dsize = 8;
- if ( tdb_store( wcache->tdb, key, data, TDB_REPLACE) == -1 )
+ if ( tdb_store( wcache->tdb, key, data, TDB_REPLACE) == -1 ) {
+ DEBUG(10,("store_cache_seqnum: tdb_store fail key [%s]\n", key_str ));
return NT_STATUS_UNSUCCESSFUL;
+ }
DEBUG(10,("store_cache_seqnum: success [%s][%u @ %u]\n",
domain->name, domain->sequence_number,
return NT_STATUS_OK;
}
-
-
/*
refresh the domain sequence number. If force is True
then always refresh it, no matter how recently we fetched it
/* see if we have to refetch the domain sequence number */
if (!force && (time_diff < cache_time)) {
- return;
+ DEBUG(10, ("refresh_sequence_number: %s time ok\n", domain->name));
+ goto done;
}
/* try to get the sequence number from the tdb cache first */
if ( NT_STATUS_IS_OK(status) )
goto done;
- status = wcache->backend->sequence_number(domain, &domain->sequence_number);
+ status = domain->backend->sequence_number(domain, &domain->sequence_number);
if (!NT_STATUS_IS_OK(status)) {
domain->sequence_number = DOM_SEQUENCE_NONE;
}
+ domain->last_status = status;
domain->last_seq_check = time(NULL);
/* save the new sequence number ni the cache */
store_cache_seqnum( domain );
done:
- DEBUG(10, ("refresh_sequence_number: seq number is now %d\n",
- domain->sequence_number));
+ DEBUG(10, ("refresh_sequence_number: %s seq number is now %d\n",
+ domain->name, domain->sequence_number));
return;
}
/*
decide if a cache entry has expired
*/
-static BOOL centry_expired(struct winbindd_domain *domain, struct cache_entry *centry)
+static BOOL centry_expired(struct winbindd_domain *domain, const char *keystr, struct cache_entry *centry)
{
/* if the server is OK and our cache entry came from when it was down then
the entry is invalid */
if (domain->sequence_number != DOM_SEQUENCE_NONE &&
centry->sequence_number == DOM_SEQUENCE_NONE) {
+ DEBUG(10,("centry_expired: Key %s for domain %s invalid sequence.\n",
+ keystr, domain->name ));
return True;
}
current sequence number then it is OK */
if (wcache_server_down(domain) ||
centry->sequence_number == domain->sequence_number) {
+ DEBUG(10,("centry_expired: Key %s for domain %s is good.\n",
+ keystr, domain->name ));
return False;
}
+ DEBUG(10,("centry_expired: Key %s for domain %s expired\n",
+ keystr, domain->name ));
+
/* it's expired */
return True;
}
key.dptr = kstr;
key.dsize = strlen(kstr);
data = tdb_fetch(wcache->tdb, key);
- free(kstr);
if (!data.dptr) {
/* a cache miss */
+ free(kstr);
return NULL;
}
if (centry->len < 8) {
/* huh? corrupt cache? */
+ DEBUG(10,("wcache_fetch: Corrupt cache for key %s domain %s (len < 8) ?\n",
+ kstr, domain->name ));
centry_free(centry);
+ free(kstr);
return NULL;
}
centry->status = NT_STATUS(centry_uint32(centry));
centry->sequence_number = centry_uint32(centry);
- if (centry_expired(domain, centry)) {
+ if (centry_expired(domain, kstr, centry)) {
extern BOOL opt_dual_daemon;
+ DEBUG(10,("wcache_fetch: entry %s expired for domain %s\n",
+ kstr, domain->name ));
+
if (opt_dual_daemon) {
extern BOOL background_process;
background_process = True;
+ DEBUG(10,("wcache_fetch: background processing expired entry %s for domain %s\n",
+ kstr, domain->name ));
} else {
centry_free(centry);
+ free(kstr);
return NULL;
}
}
+ DEBUG(10,("wcache_fetch: returning entry %s for domain %s\n",
+ kstr, domain->name ));
+
+ free(kstr);
return centry;
}
static void centry_expand(struct cache_entry *centry, uint32 len)
{
uint8 *p;
- if (centry->len - centry->ofs >= len) return;
+ if (centry->len - centry->ofs >= len)
+ return;
centry->len *= 2;
p = realloc(centry->data, centry->len);
if (!p) {
len = strlen(s);
/* can't handle more than 254 char strings. Truncating is probably best */
- if (len > 254) len = 254;
+ if (len > 254)
+ len = 254;
centry_put_uint8(centry, len);
centry_expand(centry, len);
memcpy(centry->data + centry->ofs, s, len);
{
struct cache_entry *centry;
- if (!wcache->tdb) return NULL;
+ if (!wcache->tdb)
+ return NULL;
centry = smb_xmalloc(sizeof(*centry));
fstring sid_string;
centry = centry_start(domain, status);
- if (!centry) return;
+ if (!centry)
+ return;
centry_put_sid(centry, sid);
fstrcpy(uname, name);
- strupper(uname);
+ strupper_m(uname);
centry_end(centry, "NS/%s", sid_to_string(sid_string, sid));
+ DEBUG(10,("wcache_save_name_to_sid: %s -> %s\n", uname, sid_string));
centry_free(centry);
}
fstring sid_string;
centry = centry_start(domain, status);
- if (!centry) return;
+ if (!centry)
+ return;
if (NT_STATUS_IS_OK(status)) {
centry_put_uint32(centry, type);
centry_put_string(centry, name);
}
centry_end(centry, "SN/%s", sid_to_string(sid_string, sid));
+ DEBUG(10,("wcache_save_sid_to_name: %s -> %s\n", sid_string, name));
centry_free(centry);
}
fstring sid_string;
centry = centry_start(domain, status);
- if (!centry) return;
+ if (!centry)
+ return;
centry_put_string(centry, info->acct_name);
centry_put_string(centry, info->full_name);
centry_put_sid(centry, info->user_sid);
centry_put_sid(centry, info->group_sid);
centry_end(centry, "U/%s", sid_to_string(sid_string, info->user_sid));
+ DEBUG(10,("wcache_save_user: %s (acct_name %s)\n", sid_string, info->acct_name));
centry_free(centry);
}
struct winbind_cache *cache = get_cache(domain);
struct cache_entry *centry = NULL;
NTSTATUS status;
- unsigned int i;
+ unsigned int i, retry;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
centry = wcache_fetch(cache, domain, "UL/%s", domain->name);
- if (!centry) goto do_query;
+ if (!centry)
+ goto do_query;
*num_entries = centry_uint32(centry);
- if (*num_entries == 0) goto do_cached;
+ if (*num_entries == 0)
+ goto do_cached;
(*info) = talloc(mem_ctx, sizeof(**info) * (*num_entries));
- if (! (*info)) smb_panic("query_user_list out of memory");
+ if (! (*info))
+ smb_panic("query_user_list out of memory");
for (i=0; i<(*num_entries); i++) {
(*info)[i].acct_name = centry_string(centry, mem_ctx);
(*info)[i].full_name = centry_string(centry, mem_ctx);
do_cached:
status = centry->status;
+
+ DEBUG(10,("query_user_list: [Cached] - cached list for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
*num_entries = 0;
*info = NULL;
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
+ /* Return status value returned by seq number check */
+
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
- status = cache->backend->query_user_list(domain, mem_ctx, num_entries, info);
+ /* Put the query_user_list() in a retry loop. There appears to be
+ * some bug either with Windows 2000 or Samba's handling of large
+ * rpc replies. This manifests itself as sudden disconnection
+ * at a random point in the enumeration of a large (60k) user list.
+ * The retry loop simply tries the operation again. )-: It's not
+ * pretty but an acceptable workaround until we work out what the
+ * real problem is. */
+
+ retry = 0;
+ do {
+
+ DEBUG(10,("query_user_list: [Cached] - doing backend query for list for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->query_user_list(domain, mem_ctx, num_entries, info);
+ if (!NT_STATUS_IS_OK(status))
+ DEBUG(3, ("query_user_list: returned 0x%08x, retrying\n", NT_STATUS_V(status)));
+ if (NT_STATUS_V(status) == NT_STATUS_V(NT_STATUS_UNSUCCESSFUL)) {
+ DEBUG(3, ("query_user_list: flushing connection cache\n"));
+ winbindd_cm_flush();
+ }
+
+ } while (NT_STATUS_V(status) == NT_STATUS_V(NT_STATUS_UNSUCCESSFUL) &&
+ (retry++ < 5));
/* and save it */
refresh_sequence_number(domain, False);
centry = centry_start(domain, status);
- if (!centry) goto skip_save;
+ if (!centry)
+ goto skip_save;
centry_put_uint32(centry, *num_entries);
for (i=0; i<(*num_entries); i++) {
centry_put_string(centry, (*info)[i].acct_name);
centry_put_string(centry, (*info)[i].full_name);
centry_put_sid(centry, (*info)[i].user_sid);
centry_put_sid(centry, (*info)[i].group_sid);
- if (cache->backend->consistent) {
+ if (domain->backend->consistent) {
/* when the backend is consistent we can pre-prime some mappings */
wcache_save_name_to_sid(domain, NT_STATUS_OK,
(*info)[i].acct_name,
NTSTATUS status;
unsigned int i;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
centry = wcache_fetch(cache, domain, "GL/%s/domain", domain->name);
- if (!centry) goto do_query;
+ if (!centry)
+ goto do_query;
*num_entries = centry_uint32(centry);
- if (*num_entries == 0) goto do_cached;
+ if (*num_entries == 0)
+ goto do_cached;
(*info) = talloc(mem_ctx, sizeof(**info) * (*num_entries));
- if (! (*info)) smb_panic("enum_dom_groups out of memory");
+ if (! (*info))
+ smb_panic("enum_dom_groups out of memory");
for (i=0; i<(*num_entries); i++) {
fstrcpy((*info)[i].acct_name, centry_string(centry, mem_ctx));
fstrcpy((*info)[i].acct_desc, centry_string(centry, mem_ctx));
do_cached:
status = centry->status;
+
+ DEBUG(10,("enum_dom_groups: [Cached] - cached list for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
*num_entries = 0;
*info = NULL;
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
+ /* Return status value returned by seq number check */
- status = cache->backend->enum_dom_groups(domain, mem_ctx, num_entries, info);
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
+
+ DEBUG(10,("enum_dom_groups: [Cached] - doing backend query for list for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->enum_dom_groups(domain, mem_ctx, num_entries, info);
/* and save it */
refresh_sequence_number(domain, False);
centry = centry_start(domain, status);
- if (!centry) goto skip_save;
+ if (!centry)
+ goto skip_save;
centry_put_uint32(centry, *num_entries);
for (i=0; i<(*num_entries); i++) {
centry_put_string(centry, (*info)[i].acct_name);
NTSTATUS status;
unsigned int i;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
centry = wcache_fetch(cache, domain, "GL/%s/local", domain->name);
- if (!centry) goto do_query;
+ if (!centry)
+ goto do_query;
*num_entries = centry_uint32(centry);
- if (*num_entries == 0) goto do_cached;
+ if (*num_entries == 0)
+ goto do_cached;
(*info) = talloc(mem_ctx, sizeof(**info) * (*num_entries));
- if (! (*info)) smb_panic("enum_dom_groups out of memory");
+ if (! (*info))
+ smb_panic("enum_dom_groups out of memory");
for (i=0; i<(*num_entries); i++) {
fstrcpy((*info)[i].acct_name, centry_string(centry, mem_ctx));
fstrcpy((*info)[i].acct_desc, centry_string(centry, mem_ctx));
indicate this. */
if (wcache_server_down(domain)) {
- DEBUG(10, ("query_user_list: returning cached user list and server was down\n"));
+ DEBUG(10, ("enum_local_groups: returning cached user list and server was down\n"));
status = NT_STATUS_MORE_PROCESSING_REQUIRED;
} else
status = centry->status;
+ DEBUG(10,("enum_local_groups: [Cached] - cached list for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
*num_entries = 0;
*info = NULL;
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
+ /* Return status value returned by seq number check */
+
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
- status = cache->backend->enum_local_groups(domain, mem_ctx, num_entries, info);
+ DEBUG(10,("enum_local_groups: [Cached] - doing backend query for list for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->enum_local_groups(domain, mem_ctx, num_entries, info);
/* and save it */
refresh_sequence_number(domain, False);
centry = centry_start(domain, status);
- if (!centry) goto skip_save;
+ if (!centry)
+ goto skip_save;
centry_put_uint32(centry, *num_entries);
for (i=0; i<(*num_entries); i++) {
centry_put_string(centry, (*info)[i].acct_name);
fstring uname;
DOM_SID *sid2;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
fstrcpy(uname, name);
- strupper(uname);
+ strupper_m(uname);
centry = wcache_fetch(cache, domain, "NS/%s/%s", domain->name, uname);
- if (!centry) goto do_query;
+ if (!centry)
+ goto do_query;
*type = centry_uint32(centry);
sid2 = centry_sid(centry, mem_ctx);
if (!sid2) {
}
status = centry->status;
+
+ DEBUG(10,("name_to_sid: [Cached] - cached name for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
do_query:
ZERO_STRUCTP(sid);
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
- status = cache->backend->name_to_sid(domain, mem_ctx, name, sid, type);
+ /* If the seq number check indicated that there is a problem
+ * with this DC, then return that status... except for
+ * access_denied. This is special because the dc may be in
+ * "restrict anonymous = 1" mode, in which case it will deny
+ * most unauthenticated operations, but *will* allow the LSA
+ * name-to-sid that we try as a fallback. */
+
+ if (!(NT_STATUS_IS_OK(domain->last_status)
+ || NT_STATUS_EQUAL(domain->last_status, NT_STATUS_ACCESS_DENIED)))
+ return domain->last_status;
+
+ DEBUG(10,("name_to_sid: [Cached] - doing backend query for name for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->name_to_sid(domain, mem_ctx, name, sid, type);
/* and save it */
wcache_save_name_to_sid(domain, status, name, sid, *type);
NTSTATUS status;
fstring sid_string;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
centry = wcache_fetch(cache, domain, "SN/%s", sid_to_string(sid_string, sid));
- if (!centry) goto do_query;
+ if (!centry)
+ goto do_query;
if (NT_STATUS_IS_OK(centry->status)) {
*type = centry_uint32(centry);
*name = centry_string(centry, mem_ctx);
}
status = centry->status;
+
+ DEBUG(10,("sid_to_name: [Cached] - cached name for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
do_query:
*name = NULL;
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
- status = cache->backend->sid_to_name(domain, mem_ctx, sid, name, type);
+ /* If the seq number check indicated that there is a problem
+ * with this DC, then return that status... except for
+ * access_denied. This is special because the dc may be in
+ * "restrict anonymous = 1" mode, in which case it will deny
+ * most unauthenticated operations, but *will* allow the LSA
+ * sid-to-name that we try as a fallback. */
+
+ if (!(NT_STATUS_IS_OK(domain->last_status)
+ || NT_STATUS_EQUAL(domain->last_status, NT_STATUS_ACCESS_DENIED)))
+ return domain->last_status;
+
+ DEBUG(10,("sid_to_name: [Cached] - doing backend query for name for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->sid_to_name(domain, mem_ctx, sid, name, type);
/* and save it */
refresh_sequence_number(domain, False);
struct winbind_cache *cache = get_cache(domain);
struct cache_entry *centry = NULL;
NTSTATUS status;
- fstring sid_string;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
- centry = wcache_fetch(cache, domain, "U/%s", sid_to_string(sid_string, user_sid));
- if (!centry) goto do_query;
+ centry = wcache_fetch(cache, domain, "U/%s", sid_string_static(user_sid));
+
+ /* If we have an access denied cache entry and a cached info3 in the
+ samlogon cache then do a query. This will force the rpc back end
+ to return the info3 data. */
+
+ if (NT_STATUS_V(domain->last_status) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED) &&
+ netsamlogon_cache_have(user_sid)) {
+ DEBUG(10, ("query_user: cached access denied and have cached info3\n"));
+ domain->last_status = NT_STATUS_OK;
+ centry_free(centry);
+ goto do_query;
+ }
+
+ if (!centry)
+ goto do_query;
info->acct_name = centry_string(centry, mem_ctx);
info->full_name = centry_string(centry, mem_ctx);
info->user_sid = centry_sid(centry, mem_ctx);
info->group_sid = centry_sid(centry, mem_ctx);
status = centry->status;
+
+ DEBUG(10,("query_user: [Cached] - cached info for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
do_query:
ZERO_STRUCTP(info);
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
+ /* Return status value returned by seq number check */
+
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
- status = cache->backend->query_user(domain, mem_ctx, user_sid, info);
+ DEBUG(10,("sid_to_name: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->query_user(domain, mem_ctx, user_sid, info);
/* and save it */
refresh_sequence_number(domain, False);
unsigned int i;
fstring sid_string;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
centry = wcache_fetch(cache, domain, "UG/%s", sid_to_string(sid_string, user_sid));
- if (!centry) goto do_query;
+
+ /* If we have an access denied cache entry and a cached info3 in the
+ samlogon cache then do a query. This will force the rpc back end
+ to return the info3 data. */
+
+ if (NT_STATUS_V(domain->last_status) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED) &&
+ netsamlogon_cache_have(user_sid)) {
+ DEBUG(10, ("query_user: cached access denied and have cached info3\n"));
+ domain->last_status = NT_STATUS_OK;
+ centry_free(centry);
+ goto do_query;
+ }
+
+ if (!centry)
+ goto do_query;
*num_groups = centry_uint32(centry);
- if (*num_groups == 0) goto do_cached;
+ if (*num_groups == 0)
+ goto do_cached;
(*user_gids) = talloc(mem_ctx, sizeof(**user_gids) * (*num_groups));
- if (! (*user_gids)) smb_panic("lookup_usergroups out of memory");
+ if (! (*user_gids))
+ smb_panic("lookup_usergroups out of memory");
for (i=0; i<(*num_groups); i++) {
(*user_gids)[i] = centry_sid(centry, mem_ctx);
}
do_cached:
status = centry->status;
+
+ DEBUG(10,("lookup_usergroups: [Cached] - cached info for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
(*num_groups) = 0;
(*user_gids) = NULL;
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
- status = cache->backend->lookup_usergroups(domain, mem_ctx, user_sid, num_groups, user_gids);
+ /* Return status value returned by seq number check */
+
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
+
+ DEBUG(10,("lookup_usergroups: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->lookup_usergroups(domain, mem_ctx, user_sid, num_groups, user_gids);
/* and save it */
refresh_sequence_number(domain, False);
centry = centry_start(domain, status);
- if (!centry) goto skip_save;
+ if (!centry)
+ goto skip_save;
centry_put_uint32(centry, *num_groups);
for (i=0; i<(*num_groups); i++) {
centry_put_sid(centry, (*user_gids)[i]);
unsigned int i;
fstring sid_string;
- if (!cache->tdb) goto do_query;
+ if (!cache->tdb)
+ goto do_query;
centry = wcache_fetch(cache, domain, "GM/%s", sid_to_string(sid_string, group_sid));
- if (!centry) goto do_query;
+ if (!centry)
+ goto do_query;
*num_names = centry_uint32(centry);
- if (*num_names == 0) goto do_cached;
+ if (*num_names == 0)
+ goto do_cached;
(*sid_mem) = talloc(mem_ctx, sizeof(**sid_mem) * (*num_names));
(*names) = talloc(mem_ctx, sizeof(**names) * (*num_names));
do_cached:
status = centry->status;
+
+ DEBUG(10,("lookup_groupmem: [Cached] - cached info for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
centry_free(centry);
return status;
(*names) = NULL;
(*name_types) = NULL;
+ /* Return status value returned by seq number check */
- if (wcache_server_down(domain)) {
- return NT_STATUS_SERVER_DISABLED;
- }
- status = cache->backend->lookup_groupmem(domain, mem_ctx, group_sid, num_names,
- sid_mem, names, name_types);
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
+
+ DEBUG(10,("lookup_groupmem: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->lookup_groupmem(domain, mem_ctx, group_sid, num_names,
+ sid_mem, names, name_types);
/* and save it */
refresh_sequence_number(domain, False);
centry = centry_start(domain, status);
- if (!centry) goto skip_save;
+ if (!centry)
+ goto skip_save;
centry_put_uint32(centry, *num_names);
for (i=0; i<(*num_names); i++) {
centry_put_sid(centry, (*sid_mem)[i]);
char ***alt_names,
DOM_SID **dom_sids)
{
- struct winbind_cache *cache = get_cache(domain);
+ get_cache(domain);
+
+ DEBUG(10,("trusted_domains: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
/* we don't cache this call */
- return cache->backend->trusted_domains(domain, mem_ctx, num_domains,
+ return domain->backend->trusted_domains(domain, mem_ctx, num_domains,
names, alt_names, dom_sids);
}
/* find the domain sid */
static NTSTATUS domain_sid(struct winbindd_domain *domain, DOM_SID *sid)
{
- struct winbind_cache *cache = get_cache(domain);
+ get_cache(domain);
+
+ DEBUG(10,("domain_sid: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
/* we don't cache this call */
- return cache->backend->domain_sid(domain, sid);
+ return domain->backend->domain_sid(domain, sid);
}
/* find the alternate names for the domain, if any */
static NTSTATUS alternate_name(struct winbindd_domain *domain)
{
- struct winbind_cache *cache = get_cache(domain);
+ get_cache(domain);
+
+ DEBUG(10,("alternate_name: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
/* we don't cache this call */
- return cache->backend->alternate_name(domain);
+ return domain->backend->alternate_name(domain);
+}
+
+/* Invalidate cached user and group lists coherently */
+
+static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA kbuf, TDB_DATA dbuf,
+ void *state)
+{
+ if (strncmp(kbuf.dptr, "UL/", 3) == 0 ||
+ strncmp(kbuf.dptr, "GL/", 3) == 0)
+ tdb_delete(the_tdb, kbuf);
+
+ return 0;
+}
+
+/* Invalidate the getpwnam and getgroups entries for a winbindd domain */
+
+void wcache_invalidate_samlogon(struct winbindd_domain *domain,
+ NET_USER_INFO_3 *info3)
+{
+ struct winbind_cache *cache;
+
+ if (!domain)
+ return;
+
+ cache = get_cache(domain);
+ netsamlogon_clear_cached_user(cache->tdb, info3);
+}
+
+void wcache_invalidate_cache(void)
+{
+ struct winbindd_domain *domain;
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ struct winbind_cache *cache = get_cache(domain);
+
+ DEBUG(10, ("wcache_invalidate_cache: invalidating cache "
+ "entries for %s\n", domain->name));
+ if (cache)
+ tdb_traverse(cache->tdb, traverse_fn, NULL);
+ }
}
/* the ADS backend methods are exposed via this structure */
git.samba.org / abartlet / samba.git / .git / blobdiff