1 files changed, 66 insertions, 0 deletions
diff --git a/src/responder/pac/pacsrv_utils.c b/src/responder/pac/pacsrv_utils.c
new file mode 100644
index 000000000..9f2932be9
--- /dev/null
+++ b/src/responder/pac/pacsrv_utils.c
@@ -0,0 +1,66 @@
+/*
+   SSSD
+
+   PAC Responder - utility finctions
+
+   Copyright (C) Sumit Bose <sbose@redhat.com> 2012
+
+   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 <stdbool.h>
+#include <util/data_blob.h>
+#include <gen_ndr/security.h>
+
+#include "util/util.h"
+#include "responder/pac/pacsrv.h"
+
+errno_t get_rid(struct dom_sid *sid, uint32_t *rid)
+{
+    if (sid == NULL || sid->num_auths < 1 || rid == NULL) {
+        return EINVAL;
+    }
+
+    *rid = sid->sub_auths[sid->num_auths - 1];
+
+    return EOK;
+}
+
+errno_t local_sid_to_id(struct local_mapping_ranges *map, struct dom_sid *sid,
+                        uint32_t *id)
+{
+    int ret;
+    uint32_t rid;
+
+    if (map == NULL || sid == NULL || id == NULL) {
+        return EINVAL;
+    }
+
+    ret = get_rid(sid, &rid);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_OP_FAILURE, ("get_rid failed.\n"));
+        return ret;
+    }
+
+    if (rid >= map->primary_rids.min && rid <= map->primary_rids.max) {
+        *id = map->local_ids.min + (rid -  map->primary_rids.min);
+    } else if (rid >= map->secondary_rids.min &&
+               rid <= map->secondary_rids.max) {
+        *id = map->local_ids.min + (rid -  map->secondary_rids.min);
+    } else {
+        return ENOENT;
+    }
+
+    return EOK;
+}
+