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Diffstat (limited to 'source3/passdb/pdb_interface.c')
-rw-r--r--source3/passdb/pdb_interface.c53
1 files changed, 26 insertions, 27 deletions
diff --git a/source3/passdb/pdb_interface.c b/source3/passdb/pdb_interface.c
index 2102b579ec..0ab45bafc3 100644
--- a/source3/passdb/pdb_interface.c
+++ b/source3/passdb/pdb_interface.c
@@ -25,10 +25,6 @@
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
-/* Cache of latest SAM lookup query */
-
-static struct samu *csamuser = NULL;
-
static_decl_pdb;
static struct pdb_init_function_entry *backends = NULL;
@@ -211,25 +207,29 @@ static struct pdb_methods *pdb_get_methods(void)
bool pdb_getsampwnam(struct samu *sam_acct, const char *username)
{
struct pdb_methods *pdb = pdb_get_methods();
+ struct samu *cache_copy;
+ const struct dom_sid *user_sid;
if (!NT_STATUS_IS_OK(pdb->getsampwnam(pdb, sam_acct, username))) {
return False;
}
- if ( csamuser ) {
- TALLOC_FREE(csamuser);
- }
-
- csamuser = samu_new( NULL );
- if (!csamuser) {
+ cache_copy = samu_new(NULL);
+ if (cache_copy == NULL) {
return False;
}
- if (!pdb_copy_sam_account(csamuser, sam_acct)) {
- TALLOC_FREE(csamuser);
+ if (!pdb_copy_sam_account(cache_copy, sam_acct)) {
+ TALLOC_FREE(cache_copy);
return False;
}
+ user_sid = pdb_get_user_sid(cache_copy);
+
+ memcache_add_talloc(NULL, PDB_GETPWSID_CACHE,
+ data_blob_const(user_sid, sizeof(*user_sid)),
+ cache_copy);
+
return True;
}
@@ -262,6 +262,7 @@ bool pdb_getsampwsid(struct samu *sam_acct, const DOM_SID *sid)
{
struct pdb_methods *pdb = pdb_get_methods();
uint32 rid;
+ void *cache_data;
/* hard code the Guest RID of 501 */
@@ -274,9 +275,16 @@ bool pdb_getsampwsid(struct samu *sam_acct, const DOM_SID *sid)
}
/* check the cache first */
-
- if ( csamuser && sid_equal(sid, pdb_get_user_sid(csamuser) ) )
- return pdb_copy_sam_account(sam_acct, csamuser);
+
+ cache_data = memcache_lookup_talloc(
+ NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid)));
+
+ if (cache_data != NULL) {
+ struct samu *cache_copy = talloc_get_type_abort(
+ cache_data, struct samu);
+
+ return pdb_copy_sam_account(sam_acct, cache_copy);
+ }
return NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid));
}
@@ -471,10 +479,7 @@ NTSTATUS pdb_update_sam_account(struct samu *sam_acct)
{
struct pdb_methods *pdb = pdb_get_methods();
- if (csamuser != NULL) {
- TALLOC_FREE(csamuser);
- csamuser = NULL;
- }
+ memcache_flush(NULL, PDB_GETPWSID_CACHE);
return pdb->update_sam_account(pdb, sam_acct);
}
@@ -483,10 +488,7 @@ NTSTATUS pdb_delete_sam_account(struct samu *sam_acct)
{
struct pdb_methods *pdb = pdb_get_methods();
- if (csamuser != NULL) {
- TALLOC_FREE(csamuser);
- csamuser = NULL;
- }
+ memcache_flush(NULL, PDB_GETPWSID_CACHE);
return pdb->delete_sam_account(pdb, sam_acct);
}
@@ -497,10 +499,7 @@ NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname)
uid_t uid;
NTSTATUS status;
- if (csamuser != NULL) {
- TALLOC_FREE(csamuser);
- csamuser = NULL;
- }
+ memcache_flush(NULL, PDB_GETPWSID_CACHE);
/* sanity check to make sure we don't rename root */