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Diffstat (limited to 'source3/nsswitch/winbindd_group.c')
-rw-r--r--source3/nsswitch/winbindd_group.c147
1 files changed, 144 insertions, 3 deletions
diff --git a/source3/nsswitch/winbindd_group.c b/source3/nsswitch/winbindd_group.c
index 1b21352c86..e5cdc404a0 100644
--- a/source3/nsswitch/winbindd_group.c
+++ b/source3/nsswitch/winbindd_group.c
@@ -31,9 +31,150 @@ extern BOOL opt_nocache;
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
-/***************************************************************
- Empty static struct for negative caching.
-****************************************************************/
+static void add_member(const char *domain, const char *user,
+ char **pp_members, size_t *p_num_members)
+{
+ fstring name;
+
+ fill_domain_username(name, domain, user, True);
+ safe_strcat(name, ",", sizeof(name)-1);
+ string_append(pp_members, name);
+ *p_num_members += 1;
+}
+
+/**********************************************************************
+ Add member users resulting from sid. Expand if it is a domain group.
+**********************************************************************/
+
+static void add_expanded_sid(const DOM_SID *sid, char **pp_members, size_t *p_num_members)
+{
+ DOM_SID dom_sid;
+ uint32 rid;
+ struct winbindd_domain *domain;
+ size_t i;
+
+ char *domain_name = NULL;
+ char *name = NULL;
+ enum lsa_SidType type;
+
+ uint32 num_names;
+ DOM_SID *sid_mem;
+ char **names;
+ uint32 *types;
+
+ NTSTATUS result;
+
+ TALLOC_CTX *mem_ctx = talloc_init("add_expanded_sid");
+
+ if (mem_ctx == NULL) {
+ DEBUG(1, ("talloc_init failed\n"));
+ return;
+ }
+
+ sid_copy(&dom_sid, sid);
+ sid_split_rid(&dom_sid, &rid);
+
+ domain = find_lookup_domain_from_sid(sid);
+
+ if (domain == NULL) {
+ DEBUG(3, ("Could not find domain for sid %s\n",
+ sid_string_static(sid)));
+ goto done;
+ }
+
+ result = domain->methods->sid_to_name(domain, mem_ctx, sid,
+ &domain_name, &name, &type);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(3, ("sid_to_name failed for sid %s\n",
+ sid_string_static(sid)));
+ goto done;
+ }
+
+ DEBUG(10, ("Found name %s, type %d\n", name, type));
+
+ if (type == SID_NAME_USER) {
+ add_member(domain_name, name, pp_members, p_num_members);
+ goto done;
+ }
+
+ if (type != SID_NAME_DOM_GRP) {
+ DEBUG(10, ("Alias member %s neither user nor group, ignore\n",
+ name));
+ goto done;
+ }
+
+ /* Expand the domain group, this must be done via the target domain */
+
+ domain = find_domain_from_sid(sid);
+
+ if (domain == NULL) {
+ DEBUG(3, ("Could not find domain from SID %s\n",
+ sid_string_static(sid)));
+ goto done;
+ }
+
+ result = domain->methods->lookup_groupmem(domain, mem_ctx,
+ sid, &num_names,
+ &sid_mem, &names,
+ &types);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10, ("Could not lookup group members for %s: %s\n",
+ name, nt_errstr(result)));
+ goto done;
+ }
+
+ for (i=0; i<num_names; i++) {
+ DEBUG(10, ("Adding group member SID %s\n",
+ sid_string_static(&sid_mem[i])));
+
+ if (types[i] != SID_NAME_USER) {
+ DEBUG(1, ("Hmmm. Member %s of group %s is no user. "
+ "Ignoring.\n", names[i], name));
+ continue;
+ }
+
+ add_member(domain->name, names[i], pp_members, p_num_members);
+ }
+
+ done:
+ talloc_destroy(mem_ctx);
+ return;
+}
+
+static BOOL fill_passdb_alias_grmem(struct winbindd_domain *domain,
+ DOM_SID *group_sid,
+ size_t *num_gr_mem, char **gr_mem, size_t *gr_mem_len)
+{
+ DOM_SID *members;
+ size_t i, num_members;
+
+ *num_gr_mem = 0;
+ *gr_mem = NULL;
+ *gr_mem_len = 0;
+
+ if (!NT_STATUS_IS_OK(pdb_enum_aliasmem(group_sid, &members,
+ &num_members)))
+ return True;
+
+ for (i=0; i<num_members; i++) {
+ add_expanded_sid(&members[i], gr_mem, num_gr_mem);
+ }
+
+ SAFE_FREE(members);
+
+ if (*gr_mem != NULL) {
+ size_t len;
+
+ /* We have at least one member, strip off the last "," */
+ len = strlen(*gr_mem);
+ (*gr_mem)[len-1] = '\0';
+ *gr_mem_len = len;
+ }
+
+ return True;
+}
/* Fill a grent structure from various other information */