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-rw-r--r--source4/dsdb/common/sidmap.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/source4/dsdb/common/sidmap.c b/source4/dsdb/common/sidmap.c
index 73bfde2794..67649c1218 100644
--- a/source4/dsdb/common/sidmap.c
+++ b/source4/dsdb/common/sidmap.c
@@ -216,6 +216,47 @@ allocated_sid:
/*
+ see if a sid is a group - very inefficient!
+*/
+_PUBLIC_ BOOL sidmap_sid_is_group(struct sidmap_context *sidmap, struct dom_sid *sid)
+{
+ const char *attrs[] = { "sAMAccountType", NULL };
+ int ret;
+ TALLOC_CTX *tmp_ctx;
+ struct ldb_message **res;
+ NTSTATUS status;
+ struct dom_sid *domain_sid;
+ BOOL is_group;
+
+ tmp_ctx = talloc_new(sidmap);
+
+ ret = gendb_search(sidmap->samctx, tmp_ctx, NULL, &res, attrs,
+ "objectSid=%s", ldap_encode_ndr_dom_sid(tmp_ctx, sid));
+ if (ret == 1) {
+ is_group = is_group_account(res[0]);
+ talloc_free(tmp_ctx);
+ return is_group;
+ }
+
+ status = sidmap_primary_domain_sid(sidmap, tmp_ctx, &domain_sid);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return False;
+ }
+
+ if (dom_sid_in_domain(domain_sid, sid)) {
+ uint32_t rid = sid->sub_auths[sid->num_auths-1];
+ if (rid >= SIDMAP_LOCAL_GROUP_BASE) {
+ talloc_free(tmp_ctx);
+ return True;
+ }
+ }
+
+ talloc_free(tmp_ctx);
+ return False;
+}
+
+/*
map a sid to a unix gid
*/
_PUBLIC_ NTSTATUS sidmap_sid_to_unixgid(struct sidmap_context *sidmap,