Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
Copyright (C) Jeremy Allison 2006
Copyright (C) Simo Sorce 2003-2006
-
+ Copyright (C) Michael Adam 2009-2010
+
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 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "system/filesys.h"
#include "winbindd.h"
+#include "idmap.h"
+#include "idmap_rw.h"
+#include "idmap_tdb_common.h"
+#include "dbwrap/dbwrap.h"
+#include "dbwrap/dbwrap_open.h"
+#include "../libcli/security/security.h"
+#include "util_tdb.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_IDMAP
#define HWM_GROUP "GROUP HWM"
#define HWM_USER "USER HWM"
-static struct idmap_tdb_state {
-
- /* User and group id pool */
- uid_t low_uid, high_uid; /* Range of uids to allocate */
- gid_t low_gid, high_gid; /* Range of gids to allocate */
-
-} idmap_tdb_state;
-
struct convert_fn_state {
struct db_context *db;
bool failed;
struct winbindd_domain *domain;
char *p;
NTSTATUS status;
- DOM_SID sid;
+ struct dom_sid sid;
uint32 rid;
fstring keystr;
fstring dom_name;
+ TDB_DATA key;
TDB_DATA key2;
+ TDB_DATA value;
struct convert_fn_state *s = (struct convert_fn_state *)private_data;
- DEBUG(10,("Converting %s\n", (const char *)rec->key.dptr));
+ key = dbwrap_record_get_key(rec);
+
+ DEBUG(10,("Converting %s\n", (const char *)key.dptr));
- p = strchr((const char *)rec->key.dptr, '/');
+ p = strchr((const char *)key.dptr, '/');
if (!p)
return 0;
*p = 0;
- fstrcpy(dom_name, (const char *)rec->key.dptr);
+ fstrcpy(dom_name, (const char *)key.dptr);
*p++ = '/';
domain = find_domain_from_name(dom_name);
if (domain == NULL) {
/* We must delete the old record. */
DEBUG(0,("Unable to find domain %s\n", dom_name ));
- DEBUG(0,("deleting record %s\n", (const char *)rec->key.dptr ));
+ DEBUG(0,("deleting record %s\n", (const char *)key.dptr ));
- status = rec->delete_rec(rec);
+ status = dbwrap_record_delete(rec);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Unable to delete record %s:%s\n",
- (const char *)rec->key.dptr,
+ (const char *)key.dptr,
nt_errstr(status)));
s->failed = true;
return -1;
rid = atoi(p);
- sid_copy(&sid, &domain->sid);
- sid_append_rid(&sid, rid);
+ sid_compose(&sid, &domain->sid, rid);
sid_to_fstring(keystr, &sid);
key2 = string_term_tdb_data(keystr);
- status = dbwrap_store(s->db, key2, rec->value, TDB_INSERT);
+ value = dbwrap_record_get_value(rec);
+
+ status = dbwrap_store(s->db, key2, value, TDB_INSERT);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Unable to add record %s:%s\n",
(const char *)key2.dptr,
return -1;
}
- status = dbwrap_store(s->db, rec->value, key2, TDB_REPLACE);
+ status = dbwrap_store(s->db, value, key2, TDB_REPLACE);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Unable to update record %s:%s\n",
- (const char *)rec->value.dptr,
+ (const char *)value.dptr,
nt_errstr(status)));
s->failed = true;
return -1;
}
- status = rec->delete_rec(rec);
+ status = dbwrap_record_delete(rec);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Unable to delete record %s:%s\n",
- (const char *)rec->key.dptr,
+ (const char *)key.dptr,
nt_errstr(status)));
s->failed = true;
return -1;
Convert the idmap database from an older version.
*****************************************************************************/
-static bool idmap_tdb_upgrade(struct db_context *db)
+static bool idmap_tdb_upgrade(struct idmap_domain *dom, struct db_context *db)
{
int32 vers;
- bool bigendianheader;
struct convert_fn_state s;
+ NTSTATUS status;
- DEBUG(0, ("Upgrading winbindd_idmap.tdb from an old version\n"));
-
- bigendianheader = (db->get_flags(db) & TDB_BIGENDIAN) ? True : False;
-
- vers = dbwrap_fetch_int32(db, "IDMAP_VERSION");
+ status = dbwrap_fetch_int32_bystring(db, "IDMAP_VERSION", &vers);
+ if (!NT_STATUS_IS_OK(status)) {
+ vers = -1;
+ }
- if (((vers == -1) && bigendianheader) || (IREV(vers) == IDMAP_VERSION)) {
- /* Arrggghh ! Bytereversed or old big-endian - make order independent ! */
+ if (IREV(vers) == IDMAP_VERSION) {
+ /* Arrggghh ! Bytereversed - make order independent ! */
/*
* high and low records were created on a
* big endian machine and will need byte-reversing.
int32 wm;
- wm = dbwrap_fetch_int32(db, HWM_USER);
+ status = dbwrap_fetch_int32_bystring(db, HWM_USER, &wm);
+ if (!NT_STATUS_IS_OK(status)) {
+ wm = -1;
+ }
if (wm != -1) {
wm = IREV(wm);
} else {
- wm = idmap_tdb_state.low_uid;
+ wm = dom->low_id;
}
- if (dbwrap_store_int32(db, HWM_USER, wm) == -1) {
- DEBUG(0, ("Unable to byteswap user hwm in idmap database\n"));
+ status = dbwrap_store_int32_bystring(db, HWM_USER, wm);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Unable to byteswap user hwm in idmap "
+ "database: %s\n", nt_errstr(status)));
return False;
}
- wm = dbwrap_fetch_int32(db, HWM_GROUP);
+ status = dbwrap_fetch_int32_bystring(db, HWM_GROUP, &wm);
+ if (!NT_STATUS_IS_OK(status)) {
+ wm = -1;
+ }
+
if (wm != -1) {
wm = IREV(wm);
} else {
- wm = idmap_tdb_state.low_gid;
+ wm = dom->low_id;
}
- if (dbwrap_store_int32(db, HWM_GROUP, wm) == -1) {
- DEBUG(0, ("Unable to byteswap group hwm in idmap database\n"));
+ status = dbwrap_store_int32_bystring(db, HWM_GROUP, wm);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Unable to byteswap group hwm in idmap "
+ "database: %s\n", nt_errstr(status)));
return False;
}
}
s.failed = false;
/* the old format stored as DOMAIN/rid - now we store the SID direct */
- db->traverse(db, convert_fn, &s);
+ status = dbwrap_traverse(db, convert_fn, &s, NULL);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Database traverse failed during conversion\n"));
+ return false;
+ }
if (s.failed) {
DEBUG(0, ("Problem during conversion\n"));
return False;
}
- if (dbwrap_store_int32(db, "IDMAP_VERSION", IDMAP_VERSION) == -1) {
- DEBUG(0, ("Unable to dtore idmap version in databse\n"));
+ status = dbwrap_store_int32_bystring(db, "IDMAP_VERSION",
+ IDMAP_VERSION);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Unable to store idmap version in database: %s\n",
+ nt_errstr(status)));
return False;
}
return True;
}
-static NTSTATUS idmap_tdb_load_ranges(void)
+static NTSTATUS idmap_tdb_init_hwm(struct idmap_domain *dom)
{
- uid_t low_uid = 0;
- uid_t high_uid = 0;
- gid_t low_gid = 0;
- gid_t high_gid = 0;
-
- if (!lp_idmap_uid(&low_uid, &high_uid)) {
- DEBUG(1, ("idmap uid missing\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ uint32_t low_uid;
+ uint32_t low_gid;
+ bool update_uid = false;
+ bool update_gid = false;
+ struct idmap_tdb_common_context *ctx;
+ NTSTATUS status;
+
+ ctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
+
+ status = dbwrap_fetch_uint32_bystring(ctx->db, HWM_USER, &low_uid);
+ if (!NT_STATUS_IS_OK(status) || low_uid < dom->low_id) {
+ update_uid = true;
+ }
+
+ status = dbwrap_fetch_uint32_bystring(ctx->db, HWM_GROUP, &low_gid);
+ if (!NT_STATUS_IS_OK(status) || low_gid < dom->low_id) {
+ update_gid = true;
+ }
+
+ if (!update_uid && !update_gid) {
+ return NT_STATUS_OK;
}
- if (!lp_idmap_gid(&low_gid, &high_gid)) {
- DEBUG(1, ("idmap gid missing\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ if (dbwrap_transaction_start(ctx->db) != 0) {
+ DEBUG(0, ("Unable to start upgrade transaction!\n"));
+ return NT_STATUS_INTERNAL_DB_ERROR;
}
- idmap_tdb_state.low_uid = low_uid;
- idmap_tdb_state.high_uid = high_uid;
- idmap_tdb_state.low_gid = low_gid;
- idmap_tdb_state.high_gid = high_gid;
+ if (update_uid) {
+ status = dbwrap_store_uint32_bystring(ctx->db, HWM_USER,
+ dom->low_id);
+ if (!NT_STATUS_IS_OK(status)) {
+ dbwrap_transaction_cancel(ctx->db);
+ DEBUG(0, ("Unable to initialise user hwm in idmap "
+ "database: %s\n", nt_errstr(status)));
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+ }
- if (idmap_tdb_state.high_uid <= idmap_tdb_state.low_uid) {
- DEBUG(1, ("idmap uid range missing or invalid\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ if (update_gid) {
+ status = dbwrap_store_uint32_bystring(ctx->db, HWM_GROUP,
+ dom->low_id);
+ if (!NT_STATUS_IS_OK(status)) {
+ dbwrap_transaction_cancel(ctx->db);
+ DEBUG(0, ("Unable to initialise group hwm in idmap "
+ "database: %s\n", nt_errstr(status)));
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
}
- if (idmap_tdb_state.high_gid <= idmap_tdb_state.low_gid) {
- DEBUG(1, ("idmap gid range missing or invalid\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ if (dbwrap_transaction_commit(ctx->db) != 0) {
+ DEBUG(0, ("Unable to commit upgrade transaction!\n"));
+ return NT_STATUS_INTERNAL_DB_ERROR;
}
return NT_STATUS_OK;
}
-static NTSTATUS idmap_tdb_open_db(TALLOC_CTX *memctx,
- bool check_config,
- struct db_context **dbctx)
+static NTSTATUS idmap_tdb_open_db(struct idmap_domain *dom)
{
NTSTATUS ret;
- TALLOC_CTX *ctx;
+ TALLOC_CTX *mem_ctx;
char *tdbfile = NULL;
struct db_context *db = NULL;
int32_t version;
bool config_error = false;
+ struct idmap_tdb_common_context *ctx;
- ret = idmap_tdb_load_ranges();
- if (!NT_STATUS_IS_OK(ret)) {
- config_error = true;
- if (check_config) {
- return ret;
- }
+ ctx = talloc_get_type(dom->private_data,
+ struct idmap_tdb_common_context);
+
+ if (ctx->db) {
+ /* it is already open */
+ return NT_STATUS_OK;
}
/* use our own context here */
- ctx = talloc_stackframe();
+ mem_ctx = talloc_stackframe();
/* use the old database if present */
tdbfile = state_path("winbindd_idmap.tdb");
DEBUG(10,("Opening tdbfile %s\n", tdbfile ));
/* Open idmap repository */
- db = db_open(ctx, tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644);
+ db = db_open(mem_ctx, tdbfile, 0, TDB_DEFAULT, O_RDWR | O_CREAT, 0644,
+ DBWRAP_LOCK_ORDER_1);
if (!db) {
DEBUG(0, ("Unable to open idmap database\n"));
ret = NT_STATUS_UNSUCCESSFUL;
}
/* check against earlier versions */
- version = dbwrap_fetch_int32(db, "IDMAP_VERSION");
+ ret = dbwrap_fetch_int32_bystring(db, "IDMAP_VERSION", &version);
+ if (!NT_STATUS_IS_OK(ret)) {
+ version = -1;
+ }
+
if (version != IDMAP_VERSION) {
if (config_error) {
DEBUG(0,("Upgrade of IDMAP_VERSION from %d to %d is not "
ret = NT_STATUS_UNSUCCESSFUL;
goto done;
}
- if (db->transaction_start(db) != 0) {
+ if (dbwrap_transaction_start(db) != 0) {
DEBUG(0, ("Unable to start upgrade transaction!\n"));
ret = NT_STATUS_INTERNAL_DB_ERROR;
goto done;
}
- if (!idmap_tdb_upgrade(db)) {
- db->transaction_cancel(db);
- DEBUG(0, ("Unable to open idmap database, it's in an old formati, and upgrade failed!\n"));
+ if (!idmap_tdb_upgrade(dom, db)) {
+ dbwrap_transaction_cancel(db);
+ DEBUG(0, ("Unable to open idmap database, it's in an old format, and upgrade failed!\n"));
ret = NT_STATUS_INTERNAL_DB_ERROR;
goto done;
}
- if (db->transaction_commit(db) != 0) {
+ if (dbwrap_transaction_commit(db) != 0) {
DEBUG(0, ("Unable to commit upgrade transaction!\n"));
ret = NT_STATUS_INTERNAL_DB_ERROR;
goto done;
}
}
- *dbctx = talloc_move(memctx, &db);
- ret = NT_STATUS_OK;
+ ctx->db = talloc_move(ctx, &db);
+
+ ret = idmap_tdb_init_hwm(dom);
done:
- talloc_free(ctx);
+ talloc_free(mem_ctx);
return ret;
}
-/**********************************************************************
- IDMAP ALLOC TDB BACKEND
-**********************************************************************/
-
-static struct db_context *idmap_alloc_db;
-
-/**********************************
- Initialise idmap alloc database.
-**********************************/
-
-static NTSTATUS idmap_tdb_alloc_init( const char *params )
-{
- int ret;
- NTSTATUS status;
- uint32_t low_uid;
- uint32_t low_gid;
- bool update_uid = false;
- bool update_gid = false;
-
- status = idmap_tdb_open_db(NULL, true, &idmap_alloc_db);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("idmap will be unable to map foreign SIDs: %s\n",
- nt_errstr(status)));
- return status;
- }
-
- low_uid = dbwrap_fetch_int32(idmap_alloc_db, HWM_USER);
- if (low_uid == -1 || low_uid < idmap_tdb_state.low_uid) {
- update_uid = true;
- }
-
- low_gid = dbwrap_fetch_int32(idmap_alloc_db, HWM_GROUP);
- if (low_gid == -1 || low_gid < idmap_tdb_state.low_gid) {
- update_gid = true;
- }
-
- if (!update_uid && !update_gid) {
- return NT_STATUS_OK;
- }
-
- if (idmap_alloc_db->transaction_start(idmap_alloc_db) != 0) {
- TALLOC_FREE(idmap_alloc_db);
- DEBUG(0, ("Unable to start upgrade transaction!\n"));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- if (update_uid) {
- ret = dbwrap_store_int32(idmap_alloc_db, HWM_USER,
- idmap_tdb_state.low_uid);
- if (ret == -1) {
- idmap_alloc_db->transaction_cancel(idmap_alloc_db);
- TALLOC_FREE(idmap_alloc_db);
- DEBUG(0, ("Unable to initialise user hwm in idmap "
- "database\n"));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
- }
-
- if (update_gid) {
- ret = dbwrap_store_int32(idmap_alloc_db, HWM_GROUP,
- idmap_tdb_state.low_gid);
- if (ret == -1) {
- idmap_alloc_db->transaction_cancel(idmap_alloc_db);
- TALLOC_FREE(idmap_alloc_db);
- DEBUG(0, ("Unable to initialise group hwm in idmap "
- "database\n"));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
- }
-
- if (idmap_alloc_db->transaction_commit(idmap_alloc_db) != 0) {
- TALLOC_FREE(idmap_alloc_db);
- DEBUG(0, ("Unable to commit upgrade transaction!\n"));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- return NT_STATUS_OK;
-}
-
-/**********************************
- Allocate a new id.
-**********************************/
-
-static NTSTATUS idmap_tdb_allocate_id(struct unixid *xid)
-{
- NTSTATUS ret;
- const char *hwmkey;
- const char *hwmtype;
- uint32_t high_hwm;
- uint32_t hwm;
- int res;
-
- /* Get current high water mark */
- switch (xid->type) {
-
- case ID_TYPE_UID:
- hwmkey = HWM_USER;
- hwmtype = "UID";
- high_hwm = idmap_tdb_state.high_uid;
- break;
-
- case ID_TYPE_GID:
- hwmkey = HWM_GROUP;
- hwmtype = "GID";
- high_hwm = idmap_tdb_state.high_gid;
- break;
-
- default:
- DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- res = idmap_alloc_db->transaction_start(idmap_alloc_db);
- if (res != 0) {
- DEBUG(1, (__location__ " Failed to start transaction.\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- if ((hwm = dbwrap_fetch_int32(idmap_alloc_db, hwmkey)) == -1) {
- idmap_alloc_db->transaction_cancel(idmap_alloc_db);
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- /* check it is in the range */
- if (hwm > high_hwm) {
- DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
- hwmtype, (unsigned long)high_hwm));
- idmap_alloc_db->transaction_cancel(idmap_alloc_db);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- /* fetch a new id and increment it */
- ret = dbwrap_change_uint32_atomic(idmap_alloc_db, hwmkey, &hwm, 1);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0, ("Fatal error while fetching a new %s value: %s\n!",
- hwmtype, nt_errstr(ret)));
- idmap_alloc_db->transaction_cancel(idmap_alloc_db);
- return ret;
- }
-
- /* recheck it is in the range */
- if (hwm > high_hwm) {
- DEBUG(1, ("Fatal Error: %s range full!! (max: %lu)\n",
- hwmtype, (unsigned long)high_hwm));
- idmap_alloc_db->transaction_cancel(idmap_alloc_db);
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- res = idmap_alloc_db->transaction_commit(idmap_alloc_db);
- if (res != 0) {
- DEBUG(1, (__location__ " Failed to commit transaction.\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- xid->id = hwm;
- DEBUG(10,("New %s = %d\n", hwmtype, hwm));
-
- return NT_STATUS_OK;
-}
-
-/**********************************
- Get current highest id.
-**********************************/
-
-static NTSTATUS idmap_tdb_get_hwm(struct unixid *xid)
-{
- const char *hwmkey;
- const char *hwmtype;
- uint32_t hwm;
- uint32_t high_hwm;
-
- /* Get current high water mark */
- switch (xid->type) {
-
- case ID_TYPE_UID:
- hwmkey = HWM_USER;
- hwmtype = "UID";
- high_hwm = idmap_tdb_state.high_uid;
- break;
-
- case ID_TYPE_GID:
- hwmkey = HWM_GROUP;
- hwmtype = "GID";
- high_hwm = idmap_tdb_state.high_gid;
- break;
-
- default:
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if ((hwm = dbwrap_fetch_int32(idmap_alloc_db, hwmkey)) == -1) {
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- xid->id = hwm;
-
- /* Warn if it is out of range */
- if (hwm >= high_hwm) {
- DEBUG(0, ("Warning: %s range full!! (max: %lu)\n",
- hwmtype, (unsigned long)high_hwm));
- }
-
- return NT_STATUS_OK;
-}
-
-/**********************************
- Set high id.
-**********************************/
-
-static NTSTATUS idmap_tdb_set_hwm(struct unixid *xid)
-{
- const char *hwmkey;
- const char *hwmtype;
- uint32_t hwm;
- uint32_t high_hwm;
-
- /* Get current high water mark */
- switch (xid->type) {
-
- case ID_TYPE_UID:
- hwmkey = HWM_USER;
- hwmtype = "UID";
- high_hwm = idmap_tdb_state.high_uid;
- break;
-
- case ID_TYPE_GID:
- hwmkey = HWM_GROUP;
- hwmtype = "GID";
- high_hwm = idmap_tdb_state.high_gid;
- break;
-
- default:
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- hwm = xid->id;
-
- if ((hwm = dbwrap_store_uint32(idmap_alloc_db, hwmkey, hwm)) == -1) {
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- /* Warn if it is out of range */
- if (hwm >= high_hwm) {
- DEBUG(0, ("Warning: %s range full!! (max: %lu)\n",
- hwmtype, (unsigned long)high_hwm));
- }
-
- return NT_STATUS_OK;
-}
-
-/**********************************
- Close the alloc tdb
-**********************************/
-
-static NTSTATUS idmap_tdb_alloc_close(void)
-{
- TALLOC_FREE(idmap_alloc_db);
- return NT_STATUS_OK;
-}
-
/**********************************************************************
IDMAP MAPPING TDB BACKEND
**********************************************************************/
-
-struct idmap_tdb_context {
- struct db_context *db;
- uint32_t filter_low_id;
- uint32_t filter_high_id;
-};
/*****************************
Initialise idmap database.
*****************************/
-static NTSTATUS idmap_tdb_db_init(struct idmap_domain *dom, const char *params)
+static NTSTATUS idmap_tdb_db_init(struct idmap_domain *dom)
{
NTSTATUS ret;
- struct idmap_tdb_context *ctx;
+ struct idmap_tdb_common_context *ctx;
DEBUG(10, ("idmap_tdb_db_init called for domain '%s'\n", dom->name));
- ctx = talloc(dom, struct idmap_tdb_context);
+ ctx = talloc_zero(dom, struct idmap_tdb_common_context);
if ( ! ctx) {
DEBUG(0, ("Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
+ /* load backend specific configuration here: */
+#if 0
if (strequal(dom->name, "*")) {
- uid_t low_uid = 0;
- uid_t high_uid = 0;
- gid_t low_gid = 0;
- gid_t high_gid = 0;
-
- ctx->filter_low_id = 0;
- ctx->filter_high_id = 0;
-
- if (lp_idmap_uid(&low_uid, &high_uid)) {
- ctx->filter_low_id = low_uid;
- ctx->filter_high_id = high_uid;
- } else {
- DEBUG(3, ("Warning: 'idmap uid' not set!\n"));
- }
-
- if (lp_idmap_gid(&low_gid, &high_gid)) {
- if ((low_gid != low_uid) || (high_gid != high_uid)) {
- DEBUG(1, ("Warning: 'idmap uid' and 'idmap gid'"
- " ranges do not agree -- building "
- "intersection\n"));
- ctx->filter_low_id = MAX(ctx->filter_low_id,
- low_gid);
- ctx->filter_high_id = MIN(ctx->filter_high_id,
- high_gid);
- }
- } else {
- DEBUG(3, ("Warning: 'idmap gid' not set!\n"));
- }
} else {
- char *config_option = NULL;
- const char *range;
-
- config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
- if ( ! config_option) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- range = lp_parm_const_string(-1, config_option, "range", NULL);
- if (( ! range) ||
- (sscanf(range, "%u - %u", &ctx->filter_low_id, &ctx->filter_high_id) != 2))
- {
- ctx->filter_low_id = 0;
- ctx->filter_high_id = 0;
- }
-
- talloc_free(config_option);
- }
-
- if (ctx->filter_low_id > ctx->filter_high_id) {
- ctx->filter_low_id = 0;
- ctx->filter_high_id = 0;
- }
-
- DEBUG(10, ("idmap_tdb_db_init: filter range %u-%u loaded for domain "
- "'%s'\n", ctx->filter_low_id, ctx->filter_high_id, dom->name));
-
- ret = idmap_tdb_open_db(ctx, false, &ctx->db);
- if ( ! NT_STATUS_IS_OK(ret)) {
- goto failed;
- }
-
- dom->private_data = ctx;
-
- return NT_STATUS_OK;
-
-failed:
- talloc_free(ctx);
- return ret;
-}
-
-/**********************************
- Single id to sid lookup function.
-**********************************/
-
-static NTSTATUS idmap_tdb_id_to_sid(struct idmap_tdb_context *ctx, struct id_map *map)
-{
- NTSTATUS ret;
- TDB_DATA data;
- char *keystr;
-
- if (!ctx || !map) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- /* apply filters before checking */
- if ((ctx->filter_low_id && (map->xid.id < ctx->filter_low_id)) ||
- (ctx->filter_high_id && (map->xid.id > ctx->filter_high_id))) {
- DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
- map->xid.id, ctx->filter_low_id, ctx->filter_high_id));
- return NT_STATUS_NONE_MAPPED;
- }
-
- switch (map->xid.type) {
-
- case ID_TYPE_UID:
- keystr = talloc_asprintf(ctx, "UID %lu", (unsigned long)map->xid.id);
- break;
-
- case ID_TYPE_GID:
- keystr = talloc_asprintf(ctx, "GID %lu", (unsigned long)map->xid.id);
- break;
-
- default:
- DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
- return NT_STATUS_INVALID_PARAMETER;
}
+#endif
- /* final SAFE_FREE safe */
- data.dptr = NULL;
-
- if (keystr == NULL) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- DEBUG(10,("Fetching record %s\n", keystr));
-
- /* Check if the mapping exists */
- data = dbwrap_fetch_bystring(ctx->db, NULL, keystr);
-
- if (!data.dptr) {
- DEBUG(10,("Record %s not found\n", keystr));
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- if (!string_to_sid(map->sid, (const char *)data.dptr)) {
- DEBUG(10,("INVALID SID (%s) in record %s\n",
- (const char *)data.dptr, keystr));
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- goto done;
- }
-
- DEBUG(10,("Found record %s -> %s\n", keystr, (const char *)data.dptr));
- ret = NT_STATUS_OK;
-
-done:
- talloc_free(data.dptr);
- talloc_free(keystr);
- return ret;
-}
-
-/**********************************
- Single sid to id lookup function.
-**********************************/
-
-static NTSTATUS idmap_tdb_sid_to_id(struct idmap_tdb_context *ctx, struct id_map *map)
-{
- NTSTATUS ret;
- TDB_DATA data;
- char *keystr;
- unsigned long rec_id = 0;
- TALLOC_CTX *tmp_ctx = talloc_stackframe();
-
- keystr = sid_string_talloc(tmp_ctx, map->sid);
- if (keystr == NULL) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- DEBUG(10,("Fetching record %s\n", keystr));
-
- /* Check if sid is present in database */
- data = dbwrap_fetch_bystring(ctx->db, tmp_ctx, keystr);
- if (!data.dptr) {
- DEBUG(10,("Record %s not found\n", keystr));
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- /* What type of record is this ? */
- if (sscanf((const char *)data.dptr, "UID %lu", &rec_id) == 1) { /* Try a UID record. */
- map->xid.id = rec_id;
- map->xid.type = ID_TYPE_UID;
- DEBUG(10,("Found uid record %s -> %s \n", keystr, (const char *)data.dptr ));
- ret = NT_STATUS_OK;
-
- } else if (sscanf((const char *)data.dptr, "GID %lu", &rec_id) == 1) { /* Try a GID record. */
- map->xid.id = rec_id;
- map->xid.type = ID_TYPE_GID;
- DEBUG(10,("Found gid record %s -> %s \n", keystr, (const char *)data.dptr ));
- ret = NT_STATUS_OK;
-
- } else { /* Unknown record type ! */
- DEBUG(2, ("Found INVALID record %s -> %s\n", keystr, (const char *)data.dptr));
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- /* apply filters before returning result */
- if ((ctx->filter_low_id && (map->xid.id < ctx->filter_low_id)) ||
- (ctx->filter_high_id && (map->xid.id > ctx->filter_high_id))) {
- DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
- map->xid.id, ctx->filter_low_id, ctx->filter_high_id));
- ret = NT_STATUS_NONE_MAPPED;
- }
-
-done:
- talloc_free(tmp_ctx);
- return ret;
-}
-
-/**********************************
- lookup a set of unix ids.
-**********************************/
-
-static NTSTATUS idmap_tdb_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
-{
- struct idmap_tdb_context *ctx;
- NTSTATUS ret;
- int i;
-
- /* initialize the status to avoid suprise */
- for (i = 0; ids[i]; i++) {
- ids[i]->status = ID_UNKNOWN;
- }
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
-
- for (i = 0; ids[i]; i++) {
- ret = idmap_tdb_id_to_sid(ctx, ids[i]);
- if ( ! NT_STATUS_IS_OK(ret)) {
-
- /* if it is just a failed mapping continue */
- if (NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED)) {
-
- /* make sure it is marked as unmapped */
- ids[i]->status = ID_UNMAPPED;
- continue;
- }
-
- /* some fatal error occurred, return immediately */
- goto done;
- }
-
- /* all ok, id is mapped */
- ids[i]->status = ID_MAPPED;
- }
-
- ret = NT_STATUS_OK;
-
-done:
- return ret;
-}
-
-/**********************************
- lookup a set of sids.
-**********************************/
-
-static NTSTATUS idmap_tdb_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
-{
- struct idmap_tdb_context *ctx;
- NTSTATUS ret;
- int i;
-
- /* initialize the status to avoid suprise */
- for (i = 0; ids[i]; i++) {
- ids[i]->status = ID_UNKNOWN;
- }
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
-
- for (i = 0; ids[i]; i++) {
- ret = idmap_tdb_sid_to_id(ctx, ids[i]);
- if ( ! NT_STATUS_IS_OK(ret)) {
-
- /* if it is just a failed mapping continue */
- if (NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED)) {
-
- /* make sure it is marked as unmapped */
- ids[i]->status = ID_UNMAPPED;
- continue;
- }
-
- /* some fatal error occurred, return immediately */
- goto done;
- }
-
- /* all ok, id is mapped */
- ids[i]->status = ID_MAPPED;
- }
-
- ret = NT_STATUS_OK;
-
-done:
- return ret;
-}
-
-/**********************************
- set a mapping.
-**********************************/
-
-static NTSTATUS idmap_tdb_set_mapping(struct idmap_domain *dom,
- const struct id_map *map)
-{
- struct idmap_tdb_context *ctx;
- NTSTATUS ret;
- TDB_DATA ksid, kid;
- char *ksidstr, *kidstr;
- fstring tmp;
-
- if (!map || !map->sid) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ksidstr = kidstr = NULL;
-
- /* TODO: should we filter a set_mapping using low/high filters ? */
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
-
- switch (map->xid.type) {
-
- case ID_TYPE_UID:
- kidstr = talloc_asprintf(ctx, "UID %lu",
- (unsigned long)map->xid.id);
- break;
-
- case ID_TYPE_GID:
- kidstr = talloc_asprintf(ctx, "GID %lu",
- (unsigned long)map->xid.id);
- break;
-
- default:
- DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (kidstr == NULL) {
- DEBUG(0, ("ERROR: Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- if ((ksidstr = talloc_asprintf(
- ctx, "%s", sid_to_fstring(tmp, map->sid))) == NULL) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- DEBUG(10, ("Storing %s <-> %s map\n", ksidstr, kidstr));
- kid = string_term_tdb_data(kidstr);
- ksid = string_term_tdb_data(ksidstr);
-
- if (ctx->db->transaction_start(ctx->db) != 0) {
- DEBUG(0, ("Failed to start transaction for %s\n",
- ksidstr));
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- goto done;
- }
-
- ret = dbwrap_store(ctx->db, ksid, kid, TDB_REPLACE);
- if (!NT_STATUS_IS_OK(ret)) {
- ctx->db->transaction_cancel(ctx->db);
- DEBUG(0, ("Error storing SID -> ID (%s -> %s): %s\n",
- ksidstr, kidstr, nt_errstr(ret)));
- goto done;
- }
- ret = dbwrap_store(ctx->db, kid, ksid, TDB_REPLACE);
- if (!NT_STATUS_IS_OK(ret)) {
- ctx->db->transaction_cancel(ctx->db);
- DEBUG(0, ("Error storing ID -> SID (%s -> %s): %s\n",
- kidstr, ksidstr, nt_errstr(ret)));
- goto done;
- }
-
- if (ctx->db->transaction_commit(ctx->db) != 0) {
- DEBUG(0, ("Failed to commit transaction for (%s -> %s)\n",
- ksidstr, kidstr));
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- goto done;
- }
-
- DEBUG(10,("Stored %s <-> %s\n", ksidstr, kidstr));
- ret = NT_STATUS_OK;
-
-done:
- talloc_free(ksidstr);
- talloc_free(kidstr);
- return ret;
-}
-
-/**********************************
- remove a mapping.
-**********************************/
-
-static NTSTATUS idmap_tdb_remove_mapping(struct idmap_domain *dom,
- const struct id_map *map)
-{
- struct idmap_tdb_context *ctx;
- NTSTATUS ret;
- TDB_DATA ksid, kid, data;
- char *ksidstr, *kidstr;
- fstring tmp;
-
- if (!map || !map->sid) {
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ksidstr = kidstr = NULL;
- data.dptr = NULL;
-
- /* TODO: should we filter a remove_mapping using low/high filters ? */
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
-
- switch (map->xid.type) {
-
- case ID_TYPE_UID:
- kidstr = talloc_asprintf(ctx, "UID %lu",
- (unsigned long)map->xid.id);
- break;
-
- case ID_TYPE_GID:
- kidstr = talloc_asprintf(ctx, "GID %lu",
- (unsigned long)map->xid.id);
- break;
-
- default:
- DEBUG(2, ("INVALID unix ID type: 0x02%x\n", map->xid.type));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- if (kidstr == NULL) {
- DEBUG(0, ("ERROR: Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- if ((ksidstr = talloc_asprintf(
- ctx, "%s", sid_to_fstring(tmp, map->sid))) == NULL) {
+ ctx->rw_ops = talloc_zero(ctx, struct idmap_rw_ops);
+ if (ctx->rw_ops == NULL) {
DEBUG(0, ("Out of memory!\n"));
ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- DEBUG(10, ("Checking %s <-> %s map\n", ksidstr, kidstr));
- ksid = string_term_tdb_data(ksidstr);
- kid = string_term_tdb_data(kidstr);
-
- if (ctx->db->transaction_start(ctx->db) != 0) {
- DEBUG(0, ("Failed to start transaction for %s\n",
- ksidstr));
- return NT_STATUS_INTERNAL_DB_ERROR;
- }
-
- /* Check if sid is present in database */
- data = dbwrap_fetch(ctx->db, NULL, ksid);
- if (!data.dptr) {
- ctx->db->transaction_cancel(ctx->db);
- DEBUG(10,("Record %s not found\n", ksidstr));
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- /* Check if sid is mapped to the specified ID */
- if ((data.dsize != kid.dsize) ||
- (memcmp(data.dptr, kid.dptr, data.dsize) != 0)) {
- ctx->db->transaction_cancel(ctx->db);
- DEBUG(10,("Specified SID does not map to specified ID\n"));
- DEBUGADD(10,("Actual mapping is %s -> %s\n", ksidstr,
- (const char *)data.dptr));
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
+ goto failed;
}
- DEBUG(10, ("Removing %s <-> %s map\n", ksidstr, kidstr));
-
- /* Delete previous mappings. */
+ ctx->max_id = dom->high_id;
+ ctx->hwmkey_uid = HWM_USER;
+ ctx->hwmkey_gid = HWM_GROUP;
- DEBUG(10, ("Deleting existing mapping %s -> %s\n", ksidstr, kidstr ));
- ret = dbwrap_delete(ctx->db, ksid);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0,("Warning: Failed to delete %s: %s\n",
- ksidstr, nt_errstr(ret)));
- }
+ ctx->rw_ops->get_new_id = idmap_tdb_common_get_new_id;
+ ctx->rw_ops->set_mapping = idmap_tdb_common_set_mapping;
- DEBUG(10,("Deleting existing mapping %s -> %s\n", kidstr, ksidstr ));
- ret = dbwrap_delete(ctx->db, kid);
- if (!NT_STATUS_IS_OK(ret)) {
- DEBUG(0,("Warning: Failed to delete %s: %s\n",
- kidstr, nt_errstr(ret)));
- }
+ dom->private_data = ctx;
- if (ctx->db->transaction_commit(ctx->db) != 0) {
- DEBUG(0, ("Failed to commit transaction for (%s -> %s)\n",
- ksidstr, kidstr));
- ret = NT_STATUS_INTERNAL_DB_ERROR;
- goto done;
+ ret = idmap_tdb_open_db(dom);
+ if ( ! NT_STATUS_IS_OK(ret)) {
+ goto failed;
}
- ret = NT_STATUS_OK;
-
-done:
- talloc_free(ksidstr);
- talloc_free(kidstr);
- talloc_free(data.dptr);
- return ret;
-}
-
-/**********************************
- Close the idmap tdb instance
-**********************************/
-
-static NTSTATUS idmap_tdb_close(struct idmap_domain *dom)
-{
- struct idmap_tdb_context *ctx;
-
- if (dom->private_data) {
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
-
- TALLOC_FREE(ctx->db);
- }
return NT_STATUS_OK;
-}
-
-struct dump_data {
- TALLOC_CTX *memctx;
- struct id_map **maps;
- int *num_maps;
- NTSTATUS ret;
-};
-
-static int idmap_tdb_dump_one_entry(struct db_record *rec, void *pdata)
-{
- struct dump_data *data = talloc_get_type(pdata, struct dump_data);
- struct id_map *maps;
- int num_maps = *data->num_maps;
-
- /* ignore any record but the ones with a SID as key */
- if (strncmp((const char *)rec->key.dptr, "S-", 2) == 0) {
-
- maps = talloc_realloc(NULL, *data->maps, struct id_map, num_maps+1);
- if ( ! maps) {
- DEBUG(0, ("Out of memory!\n"));
- data->ret = NT_STATUS_NO_MEMORY;
- return -1;
- }
- *data->maps = maps;
- maps[num_maps].sid = talloc(maps, DOM_SID);
- if ( ! maps[num_maps].sid) {
- DEBUG(0, ("Out of memory!\n"));
- data->ret = NT_STATUS_NO_MEMORY;
- return -1;
- }
-
- if (!string_to_sid(maps[num_maps].sid, (const char *)rec->key.dptr)) {
- DEBUG(10,("INVALID record %s\n", (const char *)rec->key.dptr));
- /* continue even with errors */
- return 0;
- }
-
- /* Try a UID record. */
- if (sscanf((const char *)rec->value.dptr, "UID %u", &(maps[num_maps].xid.id)) == 1) {
- maps[num_maps].xid.type = ID_TYPE_UID;
- maps[num_maps].status = ID_MAPPED;
- *data->num_maps = num_maps + 1;
- /* Try a GID record. */
- } else
- if (sscanf((const char *)rec->value.dptr, "GID %u", &(maps[num_maps].xid.id)) == 1) {
- maps[num_maps].xid.type = ID_TYPE_GID;
- maps[num_maps].status = ID_MAPPED;
- *data->num_maps = num_maps + 1;
-
- /* Unknown record type ! */
- } else {
- maps[num_maps].status = ID_UNKNOWN;
- DEBUG(2, ("Found INVALID record %s -> %s\n",
- (const char *)rec->key.dptr,
- (const char *)rec->value.dptr));
- /* do not increment num_maps */
- }
- }
-
- return 0;
-}
-
-/**********************************
- Dump all mappings out
-**********************************/
-
-static NTSTATUS idmap_tdb_dump_data(struct idmap_domain *dom, struct id_map **maps, int *num_maps)
-{
- struct idmap_tdb_context *ctx;
- struct dump_data *data;
- NTSTATUS ret = NT_STATUS_OK;
-
- ctx = talloc_get_type(dom->private_data, struct idmap_tdb_context);
-
- data = TALLOC_ZERO_P(ctx, struct dump_data);
- if ( ! data) {
- DEBUG(0, ("Out of memory!\n"));
- return NT_STATUS_NO_MEMORY;
- }
- data->maps = maps;
- data->num_maps = num_maps;
- data->ret = NT_STATUS_OK;
-
- ctx->db->traverse_read(ctx->db, idmap_tdb_dump_one_entry, data);
-
- if ( ! NT_STATUS_IS_OK(data->ret)) {
- ret = data->ret;
- }
-
- talloc_free(data);
+failed:
+ talloc_free(ctx);
return ret;
}
static struct idmap_methods db_methods = {
-
.init = idmap_tdb_db_init,
- .unixids_to_sids = idmap_tdb_unixids_to_sids,
- .sids_to_unixids = idmap_tdb_sids_to_unixids,
- .set_mapping = idmap_tdb_set_mapping,
- .remove_mapping = idmap_tdb_remove_mapping,
- .dump_data = idmap_tdb_dump_data,
- .close_fn = idmap_tdb_close
-};
-
-static struct idmap_alloc_methods db_alloc_methods = {
-
- .init = idmap_tdb_alloc_init,
- .allocate_id = idmap_tdb_allocate_id,
- .get_id_hwm = idmap_tdb_get_hwm,
- .set_id_hwm = idmap_tdb_set_hwm,
- .close_fn = idmap_tdb_alloc_close
+ .unixids_to_sids = idmap_tdb_common_unixids_to_sids,
+ .sids_to_unixids = idmap_tdb_common_sids_to_unixids,
+ .allocate_id = idmap_tdb_common_get_new_id,
};
-NTSTATUS idmap_alloc_tdb_init(void)
-{
- return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "tdb", &db_alloc_methods);
-}
-
NTSTATUS idmap_tdb_init(void)
{
- NTSTATUS ret;
-
DEBUG(10, ("calling idmap_tdb_init\n"));
- /* FIXME: bad hack to actually register also the alloc_tdb module without changining configure.in */
- ret = idmap_alloc_tdb_init();
- if (! NT_STATUS_IS_OK(ret)) {
- return ret;
- }
return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "tdb", &db_methods);
}
git.samba.org / kai / samba.git / blobdiff