--- /dev/null
+/*
+ * Unix SMB/CIFS implementation.
+ * RPC Pipe client / server routines
+ * Copyright (C) Andrew Tridgell 1992-2000,
+ * Copyright (C) Jean François Micouleau 1998-2001.
+ *
+ * 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
+ * (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.
+ */
+
+#include "includes.h"
+
+static TDB_CONTEXT *tdb; /* used for driver files */
+
+#define DATABASE_VERSION_V1 1 /* native byte format. */
+#define DATABASE_VERSION_V2 2 /* le format. */
+
+#define GROUP_PREFIX "UNIXGROUP/"
+
+/* Alias memberships are stored reverse, as memberships. The performance
+ * critical operation is to determine the aliases a SID is member of, not
+ * listing alias members. So we store a list of alias SIDs a SID is member of
+ * hanging of the member as key.
+ */
+#define MEMBEROF_PREFIX "MEMBEROF/"
+
+/****************************************************************************
+dump the mapping group mapping to a text file
+****************************************************************************/
+char *decode_sid_name_use(fstring group, enum SID_NAME_USE name_use)
+{
+ static fstring group_type;
+
+ switch(name_use) {
+ case SID_NAME_USER:
+ fstrcpy(group_type,"User");
+ break;
+ case SID_NAME_DOM_GRP:
+ fstrcpy(group_type,"Domain group");
+ break;
+ case SID_NAME_DOMAIN:
+ fstrcpy(group_type,"Domain");
+ break;
+ case SID_NAME_ALIAS:
+ fstrcpy(group_type,"Local group");
+ break;
+ case SID_NAME_WKN_GRP:
+ fstrcpy(group_type,"Builtin group");
+ break;
+ case SID_NAME_DELETED:
+ fstrcpy(group_type,"Deleted");
+ break;
+ case SID_NAME_INVALID:
+ fstrcpy(group_type,"Invalid");
+ break;
+ case SID_NAME_UNKNOWN:
+ default:
+ fstrcpy(group_type,"Unknown type");
+ break;
+ }
+
+ fstrcpy(group, group_type);
+ return group_type;
+}
+
+/****************************************************************************
+initialise first time the mapping list - called from init_group_mapping()
+****************************************************************************/
+static BOOL default_group_mapping(void)
+{
+ DOM_SID sid_admins;
+ DOM_SID sid_users;
+ DOM_SID sid_guests;
+ fstring str_admins;
+ fstring str_users;
+ fstring str_guests;
+
+ /* Add the Wellknown groups */
+
+ add_initial_entry(-1, "S-1-5-32-544", SID_NAME_WKN_GRP, "Administrators", "");
+ add_initial_entry(-1, "S-1-5-32-545", SID_NAME_WKN_GRP, "Users", "");
+ add_initial_entry(-1, "S-1-5-32-546", SID_NAME_WKN_GRP, "Guests", "");
+ add_initial_entry(-1, "S-1-5-32-547", SID_NAME_WKN_GRP, "Power Users", "");
+ add_initial_entry(-1, "S-1-5-32-548", SID_NAME_WKN_GRP, "Account Operators", "");
+ add_initial_entry(-1, "S-1-5-32-549", SID_NAME_WKN_GRP, "System Operators", "");
+ add_initial_entry(-1, "S-1-5-32-550", SID_NAME_WKN_GRP, "Print Operators", "");
+ add_initial_entry(-1, "S-1-5-32-551", SID_NAME_WKN_GRP, "Backup Operators", "");
+ add_initial_entry(-1, "S-1-5-32-552", SID_NAME_WKN_GRP, "Replicators", "");
+
+ /* Add the defaults domain groups */
+
+ sid_copy(&sid_admins, get_global_sam_sid());
+ sid_append_rid(&sid_admins, DOMAIN_GROUP_RID_ADMINS);
+ sid_to_string(str_admins, &sid_admins);
+ add_initial_entry(-1, str_admins, SID_NAME_DOM_GRP, "Domain Admins", "");
+
+ sid_copy(&sid_users, get_global_sam_sid());
+ sid_append_rid(&sid_users, DOMAIN_GROUP_RID_USERS);
+ sid_to_string(str_users, &sid_users);
+ add_initial_entry(-1, str_users, SID_NAME_DOM_GRP, "Domain Users", "");
+
+ sid_copy(&sid_guests, get_global_sam_sid());
+ sid_append_rid(&sid_guests, DOMAIN_GROUP_RID_GUESTS);
+ sid_to_string(str_guests, &sid_guests);
+ add_initial_entry(-1, str_guests, SID_NAME_DOM_GRP, "Domain Guests", "");
+
+ return True;
+}
+
+/****************************************************************************
+ Open the group mapping tdb.
+****************************************************************************/
+
+static BOOL init_group_mapping(void)
+{
+ const char *vstring = "INFO/version";
+ int32 vers_id;
+
+ if (tdb)
+ return True;
+ tdb = tdb_open_log(lock_path("group_mapping.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
+ if (!tdb) {
+ DEBUG(0,("Failed to open group mapping database\n"));
+ return False;
+ }
+
+ /* handle a Samba upgrade */
+ tdb_lock_bystring(tdb, vstring, 0);
+
+ /* Cope with byte-reversed older versions of the db. */
+ vers_id = tdb_fetch_int32(tdb, vstring);
+ if ((vers_id == DATABASE_VERSION_V1) || (IREV(vers_id) == DATABASE_VERSION_V1)) {
+ /* Written on a bigendian machine with old fetch_int code. Save as le. */
+ tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
+ vers_id = DATABASE_VERSION_V2;
+ }
+
+ if (vers_id != DATABASE_VERSION_V2) {
+ tdb_traverse(tdb, tdb_traverse_delete_fn, NULL);
+ tdb_store_int32(tdb, vstring, DATABASE_VERSION_V2);
+ }
+
+ tdb_unlock_bystring(tdb, vstring);
+
+ /* write a list of default groups */
+ if(!default_group_mapping())
+ return False;
+
+ return True;
+}
+
+/****************************************************************************
+****************************************************************************/
+static BOOL add_mapping_entry(GROUP_MAP *map, int flag)
+{
+ TDB_DATA kbuf, dbuf;
+ pstring key, buf;
+ fstring string_sid="";
+ int len;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ sid_to_string(string_sid, &map->sid);
+
+ len = tdb_pack(buf, sizeof(buf), "ddff",
+ map->gid, map->sid_name_use, map->nt_name, map->comment);
+
+ if (len > sizeof(buf))
+ return False;
+
+ slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
+
+ kbuf.dsize = strlen(key)+1;
+ kbuf.dptr = key;
+ dbuf.dsize = len;
+ dbuf.dptr = buf;
+ if (tdb_store(tdb, kbuf, dbuf, flag) != 0) return False;
+
+ return True;
+}
+
+/****************************************************************************
+initialise first time the mapping list
+****************************************************************************/
+BOOL add_initial_entry(gid_t gid, const char *sid, enum SID_NAME_USE sid_name_use, const char *nt_name, const char *comment)
+{
+ GROUP_MAP map;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ map.gid=gid;
+ if (!string_to_sid(&map.sid, sid)) {
+ DEBUG(0, ("string_to_sid failed: %s", sid));
+ return False;
+ }
+
+ map.sid_name_use=sid_name_use;
+ fstrcpy(map.nt_name, nt_name);
+ fstrcpy(map.comment, comment);
+
+ return pdb_add_group_mapping_entry(&map);
+}
+
+/****************************************************************************
+ Return the sid and the type of the unix group.
+****************************************************************************/
+
+static BOOL get_group_map_from_sid(DOM_SID sid, GROUP_MAP *map)
+{
+ TDB_DATA kbuf, dbuf;
+ pstring key;
+ fstring string_sid;
+ int ret = 0;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ /* the key is the SID, retrieving is direct */
+
+ sid_to_string(string_sid, &sid);
+ slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
+
+ kbuf.dptr = key;
+ kbuf.dsize = strlen(key)+1;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+ if (!dbuf.dptr)
+ return False;
+
+ ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
+ &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
+
+ SAFE_FREE(dbuf.dptr);
+
+ if ( ret == -1 ) {
+ DEBUG(3,("get_group_map_from_sid: tdb_unpack failure\n"));
+ return False;
+ }
+
+ sid_copy(&map->sid, &sid);
+
+ return True;
+}
+
+/****************************************************************************
+ Return the sid and the type of the unix group.
+****************************************************************************/
+
+static BOOL get_group_map_from_gid(gid_t gid, GROUP_MAP *map)
+{
+ TDB_DATA kbuf, dbuf, newkey;
+ fstring string_sid;
+ int ret;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ /* we need to enumerate the TDB to find the GID */
+
+ for (kbuf = tdb_firstkey(tdb);
+ kbuf.dptr;
+ newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
+
+ if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+ if (!dbuf.dptr)
+ continue;
+
+ fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
+
+ string_to_sid(&map->sid, string_sid);
+
+ ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
+ &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
+
+ SAFE_FREE(dbuf.dptr);
+
+ if ( ret == -1 ) {
+ DEBUG(3,("get_group_map_from_gid: tdb_unpack failure\n"));
+ return False;
+ }
+
+ if (gid==map->gid) {
+ SAFE_FREE(kbuf.dptr);
+ return True;
+ }
+ }
+
+ return False;
+}
+
+/****************************************************************************
+ Return the sid and the type of the unix group.
+****************************************************************************/
+
+static BOOL get_group_map_from_ntname(const char *name, GROUP_MAP *map)
+{
+ TDB_DATA kbuf, dbuf, newkey;
+ fstring string_sid;
+ int ret;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("get_group_map_from_ntname:failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ /* we need to enumerate the TDB to find the name */
+
+ for (kbuf = tdb_firstkey(tdb);
+ kbuf.dptr;
+ newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
+
+ if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0) continue;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+ if (!dbuf.dptr)
+ continue;
+
+ fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
+
+ string_to_sid(&map->sid, string_sid);
+
+ ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
+ &map->gid, &map->sid_name_use, &map->nt_name, &map->comment);
+
+ SAFE_FREE(dbuf.dptr);
+
+ if ( ret == -1 ) {
+ DEBUG(3,("get_group_map_from_ntname: tdb_unpack failure\n"));
+ return False;
+ }
+
+ if (StrCaseCmp(name, map->nt_name)==0) {
+ SAFE_FREE(kbuf.dptr);
+ return True;
+ }
+ }
+
+ return False;
+}
+
+/****************************************************************************
+ Remove a group mapping entry.
+****************************************************************************/
+
+static BOOL group_map_remove(const DOM_SID *sid)
+{
+ TDB_DATA kbuf, dbuf;
+ pstring key;
+ fstring string_sid;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ /* the key is the SID, retrieving is direct */
+
+ sid_to_string(string_sid, sid);
+ slprintf(key, sizeof(key), "%s%s", GROUP_PREFIX, string_sid);
+
+ kbuf.dptr = key;
+ kbuf.dsize = strlen(key)+1;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+ if (!dbuf.dptr)
+ return False;
+
+ SAFE_FREE(dbuf.dptr);
+
+ if(tdb_delete(tdb, kbuf) != TDB_SUCCESS)
+ return False;
+
+ return True;
+}
+
+/****************************************************************************
+ Enumerate the group mapping.
+****************************************************************************/
+
+static BOOL enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **pp_rmap,
+ size_t *p_num_entries, BOOL unix_only)
+{
+ TDB_DATA kbuf, dbuf, newkey;
+ fstring string_sid;
+ fstring group_type;
+ GROUP_MAP map;
+ GROUP_MAP *mapt;
+ int ret;
+ size_t entries=0;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ *p_num_entries=0;
+ *pp_rmap=NULL;
+
+ for (kbuf = tdb_firstkey(tdb);
+ kbuf.dptr;
+ newkey = tdb_nextkey(tdb, kbuf), safe_free(kbuf.dptr), kbuf=newkey) {
+
+ if (strncmp(kbuf.dptr, GROUP_PREFIX, strlen(GROUP_PREFIX)) != 0)
+ continue;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+ if (!dbuf.dptr)
+ continue;
+
+ fstrcpy(string_sid, kbuf.dptr+strlen(GROUP_PREFIX));
+
+ ret = tdb_unpack(dbuf.dptr, dbuf.dsize, "ddff",
+ &map.gid, &map.sid_name_use, &map.nt_name, &map.comment);
+
+ SAFE_FREE(dbuf.dptr);
+
+ if ( ret == -1 ) {
+ DEBUG(3,("enum_group_mapping: tdb_unpack failure\n"));
+ continue;
+ }
+
+ /* list only the type or everything if UNKNOWN */
+ if (sid_name_use!=SID_NAME_UNKNOWN && sid_name_use!=map.sid_name_use) {
+ DEBUG(11,("enum_group_mapping: group %s is not of the requested type\n", map.nt_name));
+ continue;
+ }
+
+ if (unix_only==ENUM_ONLY_MAPPED && map.gid==-1) {
+ DEBUG(11,("enum_group_mapping: group %s is non mapped\n", map.nt_name));
+ continue;
+ }
+
+ string_to_sid(&map.sid, string_sid);
+
+ decode_sid_name_use(group_type, map.sid_name_use);
+ DEBUG(11,("enum_group_mapping: returning group %s of type %s\n", map.nt_name ,group_type));
+
+ mapt= SMB_REALLOC_ARRAY((*pp_rmap), GROUP_MAP, entries+1);
+ if (!mapt) {
+ DEBUG(0,("enum_group_mapping: Unable to enlarge group map!\n"));
+ SAFE_FREE(*pp_rmap);
+ return False;
+ }
+ else
+ (*pp_rmap) = mapt;
+
+ mapt[entries].gid = map.gid;
+ sid_copy( &mapt[entries].sid, &map.sid);
+ mapt[entries].sid_name_use = map.sid_name_use;
+ fstrcpy(mapt[entries].nt_name, map.nt_name);
+ fstrcpy(mapt[entries].comment, map.comment);
+
+ entries++;
+
+ }
+
+ *p_num_entries=entries;
+
+ return True;
+}
+
+/* This operation happens on session setup, so it should better be fast. We
+ * store a list of aliases a SID is member of hanging off MEMBEROF/SID. */
+
+static NTSTATUS one_alias_membership(const DOM_SID *member,
+ DOM_SID **sids, size_t *num)
+{
+ fstring key, string_sid;
+ TDB_DATA kbuf, dbuf;
+ const char *p;
+
+ if (!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ sid_to_string(string_sid, member);
+ slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, string_sid);
+
+ kbuf.dsize = strlen(key)+1;
+ kbuf.dptr = key;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+
+ if (dbuf.dptr == NULL) {
+ return NT_STATUS_OK;
+ }
+
+ p = dbuf.dptr;
+
+ while (next_token(&p, string_sid, " ", sizeof(string_sid))) {
+
+ DOM_SID alias;
+
+ if (!string_to_sid(&alias, string_sid))
+ continue;
+
+ add_sid_to_array_unique(NULL, &alias, sids, num);
+
+ if (sids == NULL)
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ SAFE_FREE(dbuf.dptr);
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS alias_memberships(const DOM_SID *members, size_t num_members,
+ DOM_SID **sids, size_t *num)
+{
+ size_t i;
+
+ *num = 0;
+ *sids = NULL;
+
+ for (i=0; i<num_members; i++) {
+ NTSTATUS status = one_alias_membership(&members[i], sids, num);
+ if (!NT_STATUS_IS_OK(status))
+ return status;
+ }
+ return NT_STATUS_OK;
+}
+
+static BOOL is_aliasmem(const DOM_SID *alias, const DOM_SID *member)
+{
+ DOM_SID *sids;
+ size_t i, num;
+
+ /* This feels the wrong way round, but the on-disk data structure
+ * dictates it this way. */
+ if (!NT_STATUS_IS_OK(alias_memberships(member, 1, &sids, &num)))
+ return False;
+
+ for (i=0; i<num; i++) {
+ if (sid_compare(alias, &sids[i]) == 0) {
+ SAFE_FREE(sids);
+ return True;
+ }
+ }
+ SAFE_FREE(sids);
+ return False;
+}
+
+static NTSTATUS add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
+{
+ GROUP_MAP map;
+ TDB_DATA kbuf, dbuf;
+ pstring key;
+ fstring string_sid;
+ char *new_memberstring;
+ int result;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ if (!get_group_map_from_sid(*alias, &map))
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ if ( (map.sid_name_use != SID_NAME_ALIAS) &&
+ (map.sid_name_use != SID_NAME_WKN_GRP) )
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ if (is_aliasmem(alias, member))
+ return NT_STATUS_MEMBER_IN_ALIAS;
+
+ sid_to_string(string_sid, member);
+ slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, string_sid);
+
+ kbuf.dsize = strlen(key)+1;
+ kbuf.dptr = key;
+
+ dbuf = tdb_fetch(tdb, kbuf);
+
+ sid_to_string(string_sid, alias);
+
+ if (dbuf.dptr != NULL) {
+ asprintf(&new_memberstring, "%s %s", (char *)(dbuf.dptr),
+ string_sid);
+ } else {
+ new_memberstring = SMB_STRDUP(string_sid);
+ }
+
+ if (new_memberstring == NULL)
+ return NT_STATUS_NO_MEMORY;
+
+ SAFE_FREE(dbuf.dptr);
+ dbuf.dsize = strlen(new_memberstring)+1;
+ dbuf.dptr = new_memberstring;
+
+ result = tdb_store(tdb, kbuf, dbuf, 0);
+
+ SAFE_FREE(new_memberstring);
+
+ return (result == 0 ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED);
+}
+
+struct aliasmem_closure {
+ const DOM_SID *alias;
+ DOM_SID **sids;
+ size_t *num;
+};
+
+static int collect_aliasmem(TDB_CONTEXT *tdb_ctx, TDB_DATA key, TDB_DATA data,
+ void *state)
+{
+ struct aliasmem_closure *closure = (struct aliasmem_closure *)state;
+ const char *p;
+ fstring alias_string;
+
+ if (strncmp(key.dptr, MEMBEROF_PREFIX,
+ strlen(MEMBEROF_PREFIX)) != 0)
+ return 0;
+
+ p = data.dptr;
+
+ while (next_token(&p, alias_string, " ", sizeof(alias_string))) {
+
+ DOM_SID alias, member;
+ const char *member_string;
+
+
+ if (!string_to_sid(&alias, alias_string))
+ continue;
+
+ if (sid_compare(closure->alias, &alias) != 0)
+ continue;
+
+ /* Ok, we found the alias we're looking for in the membership
+ * list currently scanned. The key represents the alias
+ * member. Add that. */
+
+ member_string = strchr(key.dptr, '/');
+
+ /* Above we tested for MEMBEROF_PREFIX which includes the
+ * slash. */
+
+ SMB_ASSERT(member_string != NULL);
+ member_string += 1;
+
+ if (!string_to_sid(&member, member_string))
+ continue;
+
+ add_sid_to_array(NULL, &member, closure->sids, closure->num);
+ }
+
+ return 0;
+}
+
+static NTSTATUS enum_aliasmem(const DOM_SID *alias, DOM_SID **sids, size_t *num)
+{
+ GROUP_MAP map;
+ struct aliasmem_closure closure;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ if (!get_group_map_from_sid(*alias, &map))
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ if ( (map.sid_name_use != SID_NAME_ALIAS) &&
+ (map.sid_name_use != SID_NAME_WKN_GRP) )
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ *sids = NULL;
+ *num = 0;
+
+ closure.alias = alias;
+ closure.sids = sids;
+ closure.num = num;
+
+ tdb_traverse(tdb, collect_aliasmem, &closure);
+ return NT_STATUS_OK;
+}
+
+static NTSTATUS del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
+{
+ NTSTATUS result;
+ DOM_SID *sids;
+ size_t i, num;
+ BOOL found = False;
+ char *member_string;
+ TDB_DATA kbuf, dbuf;
+ pstring key;
+ fstring sid_string;
+
+ result = alias_memberships(member, 1, &sids, &num);
+
+ if (!NT_STATUS_IS_OK(result))
+ return result;
+
+ for (i=0; i<num; i++) {
+ if (sid_compare(&sids[i], alias) == 0) {
+ found = True;
+ break;
+ }
+ }
+
+ if (!found) {
+ SAFE_FREE(sids);
+ return NT_STATUS_MEMBER_NOT_IN_ALIAS;
+ }
+
+ if (i < num)
+ sids[i] = sids[num-1];
+
+ num -= 1;
+
+ sid_to_string(sid_string, member);
+ slprintf(key, sizeof(key), "%s%s", MEMBEROF_PREFIX, sid_string);
+
+ kbuf.dsize = strlen(key)+1;
+ kbuf.dptr = key;
+
+ if (num == 0)
+ return tdb_delete(tdb, kbuf) == 0 ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+
+ member_string = SMB_STRDUP("");
+
+ if (member_string == NULL) {
+ SAFE_FREE(sids);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ for (i=0; i<num; i++) {
+ char *s = member_string;
+
+ sid_to_string(sid_string, &sids[i]);
+ asprintf(&member_string, "%s %s", s, sid_string);
+
+ SAFE_FREE(s);
+ if (member_string == NULL) {
+ SAFE_FREE(sids);
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
+
+ dbuf.dsize = strlen(member_string)+1;
+ dbuf.dptr = member_string;
+
+ result = tdb_store(tdb, kbuf, dbuf, 0) == 0 ?
+ NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
+
+ SAFE_FREE(sids);
+ SAFE_FREE(member_string);
+
+ return result;
+}
+
+/*
+ *
+ * High level functions
+ * better to use them than the lower ones.
+ *
+ * we are checking if the group is in the mapping file
+ * and if the group is an existing unix group
+ *
+ */
+
+/* get a domain group from it's SID */
+
+BOOL get_domain_group_from_sid(DOM_SID sid, GROUP_MAP *map)
+{
+ struct group *grp;
+ BOOL ret;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ DEBUG(10, ("get_domain_group_from_sid\n"));
+
+ /* if the group is NOT in the database, it CAN NOT be a domain group */
+
+ become_root();
+ ret = pdb_getgrsid(map, sid);
+ unbecome_root();
+
+ if ( !ret )
+ return False;
+
+ DEBUG(10, ("get_domain_group_from_sid: SID found in the TDB\n"));
+
+ /* if it's not a domain group, continue */
+ if (map->sid_name_use!=SID_NAME_DOM_GRP) {
+ return False;
+ }
+
+ DEBUG(10, ("get_domain_group_from_sid: SID is a domain group\n"));
+
+ if (map->gid==-1) {
+ return False;
+ }
+
+ DEBUG(10, ("get_domain_group_from_sid: SID is mapped to gid:%lu\n",(unsigned long)map->gid));
+
+ grp = getgrgid(map->gid);
+ if ( !grp ) {
+ DEBUG(10, ("get_domain_group_from_sid: gid DOESN'T exist in UNIX security\n"));
+ return False;
+ }
+
+ DEBUG(10, ("get_domain_group_from_sid: gid exists in UNIX security\n"));
+
+ return True;
+}
+
+
+/* get a local (alias) group from it's SID */
+
+BOOL get_local_group_from_sid(DOM_SID *sid, GROUP_MAP *map)
+{
+ BOOL ret;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ /* The group is in the mapping table */
+ become_root();
+ ret = pdb_getgrsid(map, *sid);
+ unbecome_root();
+
+ if ( !ret )
+ return False;
+
+ if ( ( (map->sid_name_use != SID_NAME_ALIAS) &&
+ (map->sid_name_use != SID_NAME_WKN_GRP) )
+ || (map->gid == -1)
+ || (getgrgid(map->gid) == NULL) )
+ {
+ return False;
+ }
+
+#if 1 /* JERRY */
+ /* local groups only exist in the group mapping DB so this
+ is not necessary */
+
+ else {
+ /* the group isn't in the mapping table.
+ * make one based on the unix information */
+ uint32 alias_rid;
+ struct group *grp;
+
+ sid_peek_rid(sid, &alias_rid);
+ map->gid=pdb_group_rid_to_gid(alias_rid);
+
+ grp = getgrgid(map->gid);
+ if ( !grp ) {
+ DEBUG(3,("get_local_group_from_sid: No unix group for [%ul]\n", map->gid));
+ return False;
+ }
+
+ map->sid_name_use=SID_NAME_ALIAS;
+
+ fstrcpy(map->nt_name, grp->gr_name);
+ fstrcpy(map->comment, "Local Unix Group");
+
+ sid_copy(&map->sid, sid);
+ }
+#endif
+
+ return True;
+}
+
+/* get a builtin group from it's SID */
+
+BOOL get_builtin_group_from_sid(DOM_SID *sid, GROUP_MAP *map)
+{
+ BOOL ret;
+
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ become_root();
+ ret = pdb_getgrsid(map, *sid);
+ unbecome_root();
+
+ if ( !ret )
+ return False;
+
+ if (map->sid_name_use!=SID_NAME_WKN_GRP) {
+ return False;
+ }
+
+ if (map->gid==-1) {
+ return False;
+ }
+
+ if ( getgrgid(map->gid) == NULL) {
+ return False;
+ }
+
+ return True;
+}
+
+
+
+/****************************************************************************
+Returns a GROUP_MAP struct based on the gid.
+****************************************************************************/
+BOOL get_group_from_gid(gid_t gid, GROUP_MAP *map)
+{
+ BOOL ret;
+
+ if(!init_group_mapping()) {
+ DEBUG(0,("failed to initialize group mapping\n"));
+ return(False);
+ }
+
+ if ( getgrgid(gid) == NULL)
+ return False;
+
+ become_root();
+ ret = pdb_getgrgid(map, gid);
+ unbecome_root();
+
+ if ( !ret ) {
+ return False;
+ }
+
+ return True;
+}
+
+/****************************************************************************
+ Create a UNIX group on demand.
+****************************************************************************/
+
+int smb_create_group(char *unix_group, gid_t *new_gid)
+{
+ pstring add_script;
+ int ret = -1;
+ int fd = 0;
+
+ *new_gid = 0;
+
+ /* defer to scripts */
+
+ if ( *lp_addgroup_script() ) {
+ pstrcpy(add_script, lp_addgroup_script());
+ pstring_sub(add_script, "%g", unix_group);
+ ret = smbrun(add_script, (new_gid!=NULL) ? &fd : NULL);
+ DEBUG(ret ? 0 : 3,("smb_create_group: Running the command `%s' gave %d\n",add_script,ret));
+ if (ret != 0)
+ return ret;
+
+ if (fd != 0) {
+ fstring output;
+
+ *new_gid = 0;
+ if (read(fd, output, sizeof(output)) > 0) {
+ *new_gid = (gid_t)strtoul(output, NULL, 10);
+ }
+
+ close(fd);
+ }
+
+ }
+
+ if (*new_gid == 0) {
+ struct group *grp = getgrnam(unix_group);
+
+ if (grp != NULL)
+ *new_gid = grp->gr_gid;
+ }
+
+ return ret;
+}
+
+/****************************************************************************
+ Delete a UNIX group on demand.
+****************************************************************************/
+
+int smb_delete_group(char *unix_group)
+{
+ pstring del_script;
+ int ret;
+
+ /* defer to scripts */
+
+ if ( *lp_delgroup_script() ) {
+ pstrcpy(del_script, lp_delgroup_script());
+ pstring_sub(del_script, "%g", unix_group);
+ ret = smbrun(del_script,NULL);
+ DEBUG(ret ? 0 : 3,("smb_delete_group: Running the command `%s' gave %d\n",del_script,ret));
+ return ret;
+ }
+
+ return -1;
+}
+
+/****************************************************************************
+ Set a user's primary UNIX group.
+****************************************************************************/
+int smb_set_primary_group(const char *unix_group, const char* unix_user)
+{
+ pstring add_script;
+ int ret;
+
+ /* defer to scripts */
+
+ if ( *lp_setprimarygroup_script() ) {
+ pstrcpy(add_script, lp_setprimarygroup_script());
+ all_string_sub(add_script, "%g", unix_group, sizeof(add_script));
+ all_string_sub(add_script, "%u", unix_user, sizeof(add_script));
+ ret = smbrun(add_script,NULL);
+ flush_pwnam_cache();
+ DEBUG(ret ? 0 : 3,("smb_set_primary_group: "
+ "Running the command `%s' gave %d\n",add_script,ret));
+ return ret;
+ }
+
+ return -1;
+}
+
+/****************************************************************************
+ Add a user to a UNIX group.
+****************************************************************************/
+
+int smb_add_user_group(char *unix_group, char *unix_user)
+{
+ pstring add_script;
+ int ret;
+
+ /* defer to scripts */
+
+ if ( *lp_addusertogroup_script() ) {
+ pstrcpy(add_script, lp_addusertogroup_script());
+ pstring_sub(add_script, "%g", unix_group);
+ pstring_sub(add_script, "%u", unix_user);
+ ret = smbrun(add_script,NULL);
+ DEBUG(ret ? 0 : 3,("smb_add_user_group: Running the command `%s' gave %d\n",add_script,ret));
+ return ret;
+ }
+
+ return -1;
+}
+
+/****************************************************************************
+ Delete a user from a UNIX group
+****************************************************************************/
+
+int smb_delete_user_group(const char *unix_group, const char *unix_user)
+{
+ pstring del_script;
+ int ret;
+
+ /* defer to scripts */
+
+ if ( *lp_deluserfromgroup_script() ) {
+ pstrcpy(del_script, lp_deluserfromgroup_script());
+ pstring_sub(del_script, "%g", unix_group);
+ pstring_sub(del_script, "%u", unix_user);
+ ret = smbrun(del_script,NULL);
+ DEBUG(ret ? 0 : 3,("smb_delete_user_group: Running the command `%s' gave %d\n",del_script,ret));
+ return ret;
+ }
+
+ return -1;
+}
+
+
+NTSTATUS pdb_default_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
+ DOM_SID sid)
+{
+ return get_group_map_from_sid(sid, map) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
+ gid_t gid)
+{
+ return get_group_map_from_gid(gid, map) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
+ const char *name)
+{
+ return get_group_map_from_ntname(name, map) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_add_group_mapping_entry(struct pdb_methods *methods,
+ GROUP_MAP *map)
+{
+ return add_mapping_entry(map, TDB_INSERT) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_update_group_mapping_entry(struct pdb_methods *methods,
+ GROUP_MAP *map)
+{
+ return add_mapping_entry(map, TDB_REPLACE) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_delete_group_mapping_entry(struct pdb_methods *methods,
+ DOM_SID sid)
+{
+ return group_map_remove(&sid) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_enum_group_mapping(struct pdb_methods *methods,
+ enum SID_NAME_USE sid_name_use,
+ GROUP_MAP **pp_rmap, size_t *p_num_entries,
+ BOOL unix_only)
+{
+ return enum_group_mapping(sid_name_use, pp_rmap, p_num_entries, unix_only) ?
+ NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_default_find_alias(struct pdb_methods *methods,
+ const char *name, DOM_SID *sid)
+{
+ GROUP_MAP map;
+
+ if (!pdb_getgrnam(&map, name))
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ if ((map.sid_name_use != SID_NAME_WKN_GRP) &&
+ (map.sid_name_use != SID_NAME_ALIAS))
+ return NT_STATUS_OBJECT_TYPE_MISMATCH;
+
+ sid_copy(sid, &map.sid);
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_default_create_alias(struct pdb_methods *methods,
+ const char *name, uint32 *rid)
+{
+ DOM_SID sid;
+ enum SID_NAME_USE type;
+ uint32 new_rid;
+ gid_t gid;
+
+ GROUP_MAP map;
+
+ if (lookup_name(get_global_sam_name(), name, &sid, &type))
+ return NT_STATUS_ALIAS_EXISTS;
+
+ if (!winbind_allocate_rid_and_gid(&new_rid, &gid))
+ return NT_STATUS_ACCESS_DENIED;
+
+ sid_copy(&sid, get_global_sam_sid());
+ sid_append_rid(&sid, new_rid);
+
+ map.gid = gid;
+ sid_copy(&map.sid, &sid);
+ map.sid_name_use = SID_NAME_ALIAS;
+ fstrcpy(map.nt_name, name);
+ fstrcpy(map.comment, "");
+
+ if (!pdb_add_group_mapping_entry(&map)) {
+ DEBUG(0, ("Could not add group mapping entry for alias %s\n",
+ name));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ *rid = new_rid;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_default_delete_alias(struct pdb_methods *methods,
+ const DOM_SID *sid)
+{
+ return pdb_delete_group_mapping_entry(*sid) ?
+ NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
+}
+
+NTSTATUS pdb_default_get_aliasinfo(struct pdb_methods *methods,
+ const DOM_SID *sid,
+ struct acct_info *info)
+{
+ GROUP_MAP map;
+
+ if (!pdb_getgrsid(&map, *sid))
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ fstrcpy(info->acct_name, map.nt_name);
+ fstrcpy(info->acct_desc, map.comment);
+ sid_peek_rid(&map.sid, &info->rid);
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_default_set_aliasinfo(struct pdb_methods *methods,
+ const DOM_SID *sid,
+ struct acct_info *info)
+{
+ GROUP_MAP map;
+
+ if (!pdb_getgrsid(&map, *sid))
+ return NT_STATUS_NO_SUCH_ALIAS;
+
+ fstrcpy(map.comment, info->acct_desc);
+
+ if (!pdb_update_group_mapping_entry(&map))
+ return NT_STATUS_ACCESS_DENIED;
+
+ return NT_STATUS_OK;
+}
+
+NTSTATUS pdb_default_add_aliasmem(struct pdb_methods *methods,
+ const DOM_SID *alias, const DOM_SID *member)
+{
+ return add_aliasmem(alias, member);
+}
+
+NTSTATUS pdb_default_del_aliasmem(struct pdb_methods *methods,
+ const DOM_SID *alias, const DOM_SID *member)
+{
+ return del_aliasmem(alias, member);
+}
+
+NTSTATUS pdb_default_enum_aliasmem(struct pdb_methods *methods,
+ const DOM_SID *alias, DOM_SID **pp_members,
+ size_t *p_num_members)
+{
+ return enum_aliasmem(alias, pp_members, p_num_members);
+}
+
+NTSTATUS pdb_default_alias_memberships(struct pdb_methods *methods,
+ TALLOC_CTX *mem_ctx,
+ const DOM_SID *domain_sid,
+ const DOM_SID *members,
+ size_t num_members,
+ uint32 **pp_alias_rids,
+ size_t *p_num_alias_rids)
+{
+ DOM_SID *alias_sids;
+ size_t i, num_alias_sids;
+ NTSTATUS result;
+
+ alias_sids = NULL;
+ num_alias_sids = 0;
+
+ result = alias_memberships(members, num_members,
+ &alias_sids, &num_alias_sids);
+
+ if (!NT_STATUS_IS_OK(result))
+ return result;
+
+ *pp_alias_rids = TALLOC_ARRAY(mem_ctx, uint32, num_alias_sids);
+ if (*pp_alias_rids == NULL)
+ return NT_STATUS_NO_MEMORY;
+
+ *p_num_alias_rids = 0;
+
+ for (i=0; i<num_alias_sids; i++) {
+ if (!sid_peek_check_rid(domain_sid, &alias_sids[i],
+ &(*pp_alias_rids)[*p_num_alias_rids]))
+ continue;
+ *p_num_alias_rids += 1;
+ }
+
+ SAFE_FREE(alias_sids);
+
+ return NT_STATUS_OK;
+}
+
+/**********************************************************************
+ no ops for passdb backends that don't implement group mapping
+ *********************************************************************/
+
+NTSTATUS pdb_nop_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
+ DOM_SID sid)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_nop_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
+ gid_t gid)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_nop_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
+ const char *name)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_nop_add_group_mapping_entry(struct pdb_methods *methods,
+ GROUP_MAP *map)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_nop_update_group_mapping_entry(struct pdb_methods *methods,
+ GROUP_MAP *map)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_nop_delete_group_mapping_entry(struct pdb_methods *methods,
+ DOM_SID sid)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+NTSTATUS pdb_nop_enum_group_mapping(struct pdb_methods *methods,
+ enum SID_NAME_USE sid_name_use,
+ GROUP_MAP **rmap, size_t *num_entries,
+ BOOL unix_only)
+{
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+/****************************************************************************
+ These need to be redirected through pdb_interface.c
+****************************************************************************/
+BOOL pdb_get_dom_grp_info(const DOM_SID *sid, struct acct_info *info)
+{
+ GROUP_MAP map;
+ BOOL res;
+
+ become_root();
+ res = get_domain_group_from_sid(*sid, &map);
+ unbecome_root();
+
+ if (!res)
+ return False;
+
+ fstrcpy(info->acct_name, map.nt_name);
+ fstrcpy(info->acct_desc, map.comment);
+ sid_peek_rid(sid, &info->rid);
+ return True;
+}
+
+BOOL pdb_set_dom_grp_info(const DOM_SID *sid, const struct acct_info *info)
+{
+ GROUP_MAP map;
+
+ if (!get_domain_group_from_sid(*sid, &map))
+ return False;
+
+ fstrcpy(map.nt_name, info->acct_name);
+ fstrcpy(map.comment, info->acct_desc);
+
+ return pdb_update_group_mapping_entry(&map);
+}
+
+
projects / samba / blobdiff