-/*
+/*
Unix SMB/CIFS implementation.
Net_sam_logon info3 helpers
Copyright (C) Alexander Bokovoy 2002.
Copyright (C) Andrew Bartlett 2002.
Copyright (C) Gerald Carter 2003.
Copyright (C) Tim Potter 2003.
-
+ Copyright (C) Guenther Deschner 2008.
+
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
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "librpc/gen_ndr/ndr_krb5pac.h"
#define NETSAMLOGON_TDB "netsamlogon_cache.tdb"
/***********************************************************************
open the tdb
***********************************************************************/
-
-BOOL netsamlogon_cache_init(void)
+
+bool netsamlogon_cache_init(void)
{
if (!netsamlogon_tdb) {
netsamlogon_tdb = tdb_open_log(lock_path(NETSAMLOGON_TDB), 0,
- TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
+ TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
}
return (netsamlogon_tdb != NULL);
Shutdown samlogon_cache database
***********************************************************************/
-BOOL netsamlogon_cache_shutdown(void)
+bool netsamlogon_cache_shutdown(void)
{
- if(netsamlogon_tdb)
+ if (netsamlogon_tdb) {
return (tdb_close(netsamlogon_tdb) == 0);
-
- return True;
+ }
+
+ return true;
}
/***********************************************************************
Clear cache getpwnam and getgroups entries from the winbindd cache
***********************************************************************/
-void netsamlogon_clear_cached_user(TDB_CONTEXT *tdb, NET_USER_INFO_3 *user)
-{
- fstring domain;
- TDB_DATA key;
- BOOL got_tdb = False;
-
- /* We may need to call this function from smbd which will not have
- winbindd_cache.tdb open. Open the tdb if a NULL is passed. */
-
- if (!tdb) {
- tdb = tdb_open_log(lock_path("winbindd_cache.tdb"), 5000,
- TDB_DEFAULT, O_RDWR, 0600);
- if (!tdb) {
- DEBUG(5, ("netsamlogon_clear_cached_user: failed to open cache\n"));
- return;
- }
- got_tdb = True;
- }
-
- unistr2_to_ascii(domain, &user->uni_logon_dom, sizeof(domain) - 1);
-
- /* Clear U/DOMAIN/RID cache entry */
-
- asprintf(&key.dptr, "U/%s/%d", domain, user->user_rid);
- key.dsize = strlen(key.dptr) - 1; /* keys are not NULL terminated */
-
- DEBUG(10, ("netsamlogon_clear_cached_user: clearing %s\n", key.dptr));
-
- tdb_delete(tdb, key);
-
- SAFE_FREE(key.dptr);
- /* Clear UG/DOMAIN/RID cache entry */
+void netsamlogon_clear_cached_user(struct netr_SamInfo3 *info3)
+{
+ DOM_SID user_sid;
+ fstring keystr, tmp;
- asprintf(&key.dptr, "UG/%s/%d", domain, user->user_rid);
- key.dsize = strlen(key.dptr) - 1; /* keys are not NULL terminated */
+ if (!info3) {
+ return;
+ }
- DEBUG(10, ("netsamlogon_clear_cached_user: clearing %s\n", key.dptr));
+ if (!netsamlogon_cache_init()) {
+ DEBUG(0,("netsamlogon_clear_cached_user: cannot open "
+ "%s for write!\n",
+ NETSAMLOGON_TDB));
+ return;
+ }
+ sid_copy(&user_sid, info3->base.domain_sid);
+ sid_append_rid(&user_sid, info3->base.rid);
- tdb_delete(tdb, key);
+ /* Prepare key as DOMAIN-SID/USER-RID string */
+ slprintf(keystr, sizeof(keystr), "%s", sid_to_fstring(tmp, &user_sid));
- SAFE_FREE(key.dptr);
+ DEBUG(10,("netsamlogon_clear_cached_user: SID [%s]\n", keystr));
- if (got_tdb)
- tdb_close(tdb);
+ tdb_delete_bystring(netsamlogon_tdb, keystr);
}
/***********************************************************************
- Store a NET_USER_INFO_3 structure in a tdb for later user
+ Store a netr_SamInfo3 structure in a tdb for later user
+ username should be in UTF-8 format
***********************************************************************/
-BOOL netsamlogon_cache_store(TALLOC_CTX *mem_ctx, NET_USER_INFO_3 *user)
+bool netsamlogon_cache_store(const char *username, struct netr_SamInfo3 *info3)
{
- TDB_DATA data;
- fstring keystr;
- prs_struct ps;
- BOOL result = False;
- DOM_SID user_sid;
- time_t t = time(NULL);
-
+ TDB_DATA data;
+ fstring keystr, tmp;
+ bool result = false;
+ DOM_SID user_sid;
+ time_t t = time(NULL);
+ TALLOC_CTX *mem_ctx;
+ DATA_BLOB blob;
+ enum ndr_err_code ndr_err;
+ struct netsamlogoncache_entry r;
+
+ if (!info3) {
+ return false;
+ }
if (!netsamlogon_cache_init()) {
- DEBUG(0,("netsamlogon_cache_store: cannot open %s for write!\n", NETSAMLOGON_TDB));
- return False;
+ DEBUG(0,("netsamlogon_cache_store: cannot open %s for write!\n",
+ NETSAMLOGON_TDB));
+ return false;
}
- sid_copy( &user_sid, &user->dom_sid.sid );
- sid_append_rid( &user_sid, user->user_rid );
+ sid_copy(&user_sid, info3->base.domain_sid);
+ sid_append_rid(&user_sid, info3->base.rid);
/* Prepare key as DOMAIN-SID/USER-RID string */
- slprintf(keystr, sizeof(keystr), "%s", sid_string_static(&user_sid));
+ slprintf(keystr, sizeof(keystr), "%s", sid_to_fstring(tmp, &user_sid));
DEBUG(10,("netsamlogon_cache_store: SID [%s]\n", keystr));
-
+
/* Prepare data */
-
- prs_init( &ps,MAX_PDU_FRAG_LEN , mem_ctx, MARSHALL);
-
- if ( !prs_uint32( "timestamp", &ps, 0, (uint32*)&t ) )
- return False;
-
- if ( net_io_user_info3("", user, &ps, 0, 3) )
- {
- data.dsize = prs_offset( &ps );
- data.dptr = prs_data_p( &ps );
- if (tdb_store_bystring(netsamlogon_tdb, keystr, data, TDB_REPLACE) != -1)
- result = True;
-
- prs_mem_free( &ps );
+ if (!(mem_ctx = TALLOC_P( NULL, int))) {
+ DEBUG(0,("netsamlogon_cache_store: talloc() failed!\n"));
+ return false;
}
-
+
+ /* only Samba fills in the username, not sure why NT doesn't */
+ /* so we fill it in since winbindd_getpwnam() makes use of it */
+
+ if (!info3->base.account_name.string) {
+ info3->base.account_name.string = talloc_strdup(info3, username);
+ }
+
+ r.timestamp = t;
+ r.info3 = *info3;
+
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(netsamlogoncache_entry, &r);
+ }
+
+ ndr_err = ndr_push_struct_blob(&blob, mem_ctx, NULL, &r,
+ (ndr_push_flags_fn_t)ndr_push_netsamlogoncache_entry);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(0,("netsamlogon_cache_store: failed to push entry to cache\n"));
+ TALLOC_FREE(mem_ctx);
+ return false;
+ }
+
+ data.dsize = blob.length;
+ data.dptr = blob.data;
+
+ if (tdb_store_bystring(netsamlogon_tdb, keystr, data, TDB_REPLACE) != -1) {
+ result = true;
+ }
+
+ TALLOC_FREE(mem_ctx);
+
return result;
}
/***********************************************************************
- Retrieves a NET_USER_INFO_3 structure from a tdb. Caller must
+ Retrieves a netr_SamInfo3 structure from a tdb. Caller must
free the user_info struct (malloc()'d memory)
***********************************************************************/
-NET_USER_INFO_3* netsamlogon_cache_get( TALLOC_CTX *mem_ctx, const DOM_SID *user_sid)
+struct netr_SamInfo3 *netsamlogon_cache_get(TALLOC_CTX *mem_ctx, const DOM_SID *user_sid)
{
- NET_USER_INFO_3 *user = NULL;
- TDB_DATA data, key;
- prs_struct ps;
- fstring keystr;
- uint32 t;
-
+ struct netr_SamInfo3 *info3 = NULL;
+ TDB_DATA data;
+ fstring keystr, tmp;
+ enum ndr_err_code ndr_err;
+ DATA_BLOB blob;
+ struct netsamlogoncache_entry r;
+
if (!netsamlogon_cache_init()) {
- DEBUG(0,("netsamlogon_cache_store: cannot open %s for write!\n", NETSAMLOGON_TDB));
- return False;
+ DEBUG(0,("netsamlogon_cache_get: cannot open %s for write!\n",
+ NETSAMLOGON_TDB));
+ return false;
}
/* Prepare key as DOMAIN-SID/USER-RID string */
- slprintf(keystr, sizeof(keystr), "%s", sid_string_static(user_sid));
+ slprintf(keystr, sizeof(keystr), "%s", sid_to_fstring(tmp, user_sid));
DEBUG(10,("netsamlogon_cache_get: SID [%s]\n", keystr));
- key.dptr = keystr;
- key.dsize = strlen(keystr)+1;
- data = tdb_fetch( netsamlogon_tdb, key );
-
- if ( data.dptr ) {
-
- if ( (user = (NET_USER_INFO_3*)malloc(sizeof(NET_USER_INFO_3))) == NULL )
- return NULL;
-
- prs_init( &ps, 0, mem_ctx, UNMARSHALL );
- prs_give_memory( &ps, data.dptr, data.dsize, True );
-
- if ( !prs_uint32( "timestamp", &ps, 0, &t ) ) {
- prs_mem_free( &ps );
- return False;
- }
-
- if ( !net_io_user_info3("", user, &ps, 0, 3) ) {
- SAFE_FREE( user );
- }
-
- prs_mem_free( &ps );
+ data = tdb_fetch_bystring( netsamlogon_tdb, keystr );
-#if 0 /* The netsamlogon cache needs to hang around. Something about
+ if (!data.dptr) {
+ return NULL;
+ }
+
+ info3 = TALLOC_ZERO_P(mem_ctx, struct netr_SamInfo3);
+ if (!info3) {
+ goto done;
+ }
+
+ blob = data_blob_const(data.dptr, data.dsize);
+
+ ndr_err = ndr_pull_struct_blob(&blob, mem_ctx, NULL, &r,
+ (ndr_pull_flags_fn_t)ndr_pull_netsamlogoncache_entry);
+
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(netsamlogoncache_entry, &r);
+ }
+
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(0,("netsamlogon_cache_get: failed to pull entry from cache\n"));
+ tdb_delete(netsamlogon_tdb, data);
+ TALLOC_FREE(info3);
+ goto done;
+ }
+
+ info3 = (struct netr_SamInfo3 *)talloc_memdup(mem_ctx, &r.info3,
+ sizeof(r.info3));
+
+ done:
+ SAFE_FREE(data.dptr);
+
+ return info3;
+
+#if 0 /* The netsamlogon cache needs to hang around. Something about
this feels wrong, but it is the only way we can get all of the
groups. The old universal groups cache didn't expire either.
--jerry */
{
time_t now = time(NULL);
uint32 time_diff;
-
+
/* is the entry expired? */
time_diff = now - t;
-
+
if ( (time_diff < 0 ) || (time_diff > lp_winbind_cache_time()) ) {
DEBUG(10,("netsamlogon_cache_get: cache entry expired \n"));
tdb_delete( netsamlogon_tdb, key );
- SAFE_FREE( user );
+ TALLOC_FREE( user );
}
-#endif
}
-
- return user;
+#endif
}
-BOOL netsamlogon_cache_have(const DOM_SID *user_sid)
+bool netsamlogon_cache_have(const DOM_SID *user_sid)
{
TALLOC_CTX *mem_ctx = talloc_init("netsamlogon_cache_have");
- NET_USER_INFO_3 *user = NULL;
- BOOL result;
+ struct netr_SamInfo3 *info3 = NULL;
+ bool result;
if (!mem_ctx)
return False;
- user = netsamlogon_cache_get(mem_ctx, user_sid);
+ info3 = netsamlogon_cache_get(mem_ctx, user_sid);
- result = (user != NULL);
+ result = (info3 != NULL);
talloc_destroy(mem_ctx);
- SAFE_FREE(user);
return result;
}
git.samba.org / ira / wip.git / blobdiff