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-rw-r--r--source3/smbd/uid.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/source3/smbd/uid.c b/source3/smbd/uid.c
index b28f056a30..fb83e724b8 100644
--- a/source3/smbd/uid.c
+++ b/source3/smbd/uid.c
@@ -257,4 +257,230 @@ void unbecome_root(void)
pop_sec_ctx();
}
+/*****************************************************************
+ *THE CANONICAL* convert name to SID function.
+ Tries winbind first - then uses local lookup.
+*****************************************************************/
+
+BOOL lookup_name(char *name, DOM_SID *psid, enum SID_NAME_USE *name_type)
+{
+ extern pstring global_myname;
+ fstring sid;
+
+ if (!winbind_lookup_name(name, psid, name_type)) {
+ BOOL ret;
+
+ DEBUG(10,("lookup_name: winbind lookup for %s failed - trying local\n", name ));
+
+ ret = local_lookup_name(global_myname, name, psid, name_type);
+ if (ret)
+ DEBUG(10,("lookup_name : (local) %s -> SID %s (type %u)\n",
+ name, sid_to_string(sid,psid),
+ (unsigned int)*name_type ));
+ else
+ DEBUG(10,("lookup name : (local) %s failed.\n",
+ name ));
+ return ret;
+ }
+
+ DEBUG(10,("lookup_name (winbindd): %s -> SID %s (type %u)\n",
+ name, sid_to_string(sid,psid), (unsigned int)*name_type ));
+ return True;
+}
+
+/*****************************************************************
+ *THE CANONICAL* convert SID to name function.
+ Tries winbind first - then uses local lookup.
+*****************************************************************/
+
+BOOL lookup_sid(DOM_SID *sid, fstring dom_name, fstring name, enum SID_NAME_USE *name_type)
+{
+ if (!name_type)
+ return False;
+
+ /* Check if this is our own sid. This should perhaps be done by
+ winbind? For the moment handle it here. */
+
+ if (sid->num_auths == 5) {
+ DOM_SID tmp_sid;
+ uint32 rid;
+
+ sid_copy(&tmp_sid, sid);
+ sid_split_rid(&tmp_sid, &rid);
+
+ if (sid_equal(&global_sam_sid, &tmp_sid)) {
+
+ return map_domain_sid_to_name(&tmp_sid, dom_name) &&
+ local_lookup_rid(rid, name, name_type);
+ }
+ }
+
+ if (!winbind_lookup_sid(sid, dom_name, name, name_type)) {
+ fstring sid_str;
+ DOM_SID tmp_sid;
+ uint32 rid;
+
+ DEBUG(10,("lookup_sid: winbind lookup for SID %s failed - trying local.\n", sid_to_string(sid_str, sid) ));
+
+ sid_copy(&tmp_sid, sid);
+ sid_split_rid(&tmp_sid, &rid);
+ return map_domain_sid_to_name(&tmp_sid, dom_name) &&
+ lookup_known_rid(&tmp_sid, rid, name, name_type);
+ }
+ return True;
+}
+
+/*****************************************************************
+ *THE CANONICAL* convert uid_t to SID function.
+ Tries winbind first - then uses local lookup.
+ Returns SID pointer.
+*****************************************************************/
+
+DOM_SID *uid_to_sid(DOM_SID *psid, uid_t uid)
+{
+ fstring sid;
+
+ if (!winbind_uid_to_sid(psid, uid)) {
+ DEBUG(10,("uid_to_sid: winbind lookup for uid %u failed - trying local.\n", (unsigned int)uid ));
+
+ return local_uid_to_sid(psid, uid);
+ }
+
+ DEBUG(10,("uid_to_sid: winbindd %u -> %s\n",
+ (unsigned int)uid, sid_to_string(sid, psid) ));
+
+ return psid;
+}
+
+/*****************************************************************
+ *THE CANONICAL* convert gid_t to SID function.
+ Tries winbind first - then uses local lookup.
+ Returns SID pointer.
+*****************************************************************/
+
+DOM_SID *gid_to_sid(DOM_SID *psid, gid_t gid)
+{
+ fstring sid;
+
+ if (!winbind_gid_to_sid(psid, gid)) {
+ DEBUG(10,("gid_to_sid: winbind lookup for gid %u failed - trying local.\n", (unsigned int)gid ));
+
+ return local_gid_to_sid(psid, gid);
+ }
+
+ DEBUG(10,("gid_to_sid: winbindd %u -> %s\n",
+ (unsigned int)gid, sid_to_string(sid,psid) ));
+
+ return psid;
+}
+
+/*****************************************************************
+ *THE CANONICAL* convert SID to uid function.
+ Tries winbind first - then uses local lookup.
+ Returns True if this name is a user sid and the conversion
+ was done correctly, False if not.
+*****************************************************************/
+
+BOOL sid_to_uid(DOM_SID *psid, uid_t *puid, enum SID_NAME_USE *sidtype)
+{
+ fstring dom_name, name, sid_str;
+ enum SID_NAME_USE name_type;
+
+ *sidtype = SID_NAME_UNKNOWN;
+
+ /*
+ * First we must look up the name and decide if this is a user sid.
+ */
+
+ if (!winbind_lookup_sid(psid, dom_name, name, &name_type)) {
+ DEBUG(10,("sid_to_uid: winbind lookup for sid %s failed - trying local.\n",
+ sid_to_string(sid_str, psid) ));
+
+ return local_sid_to_uid(puid, psid, sidtype);
+ }
+
+ /*
+ * Ensure this is a user sid.
+ */
+
+ if (name_type != SID_NAME_USER) {
+ DEBUG(10,("sid_to_uid: winbind lookup succeeded but SID is not a uid (%u)\n",
+ (unsigned int)name_type ));
+ return False;
+ }
+
+ *sidtype = SID_NAME_USER;
+
+ /*
+ * Get the uid for this SID.
+ */
+
+ if (!winbind_sid_to_uid(puid, psid)) {
+ DEBUG(10,("sid_to_uid: winbind lookup for sid %s failed.\n",
+ sid_to_string(sid_str, psid) ));
+ return False;
+ }
+
+ DEBUG(10,("sid_to_uid: winbindd %s -> %u\n",
+ sid_to_string(sid_str, psid),
+ (unsigned int)*puid ));
+
+ return True;
+}
+
+/*****************************************************************
+ *THE CANONICAL* convert SID to gid function.
+ Tries winbind first - then uses local lookup.
+ Returns True if this name is a user sid and the conversion
+ was done correctly, False if not.
+*****************************************************************/
+
+BOOL sid_to_gid(DOM_SID *psid, gid_t *pgid, enum SID_NAME_USE *sidtype)
+{
+ fstring dom_name, name, sid_str;
+ enum SID_NAME_USE name_type;
+
+ *sidtype = SID_NAME_UNKNOWN;
+
+ /*
+ * First we must look up the name and decide if this is a group sid.
+ */
+
+ if (!winbind_lookup_sid(psid, dom_name, name, &name_type)) {
+ DEBUG(10,("sid_to_gid: winbind lookup for sid %s failed - trying local.\n",
+ sid_to_string(sid_str, psid) ));
+
+ return local_sid_to_gid(pgid, psid, sidtype);
+ }
+
+ /*
+ * Ensure this is a group sid.
+ */
+
+ if ((name_type != SID_NAME_DOM_GRP) && (name_type != SID_NAME_ALIAS) && (name_type != SID_NAME_WKN_GRP)) {
+ DEBUG(10,("sid_to_gid: winbind lookup succeeded but SID is not a know group (%u)\n",
+ (unsigned int)name_type ));
+
+ return local_sid_to_gid(pgid, psid, sidtype);
+ }
+
+ *sidtype = name_type;
+
+ /*
+ * Get the gid for this SID.
+ */
+
+ if (!winbind_sid_to_gid(pgid, psid)) {
+ DEBUG(10,("sid_to_gid: winbind lookup for sid %s failed.\n",
+ sid_to_string(sid_str, psid) ));
+ return False;
+ }
+
+ DEBUG(10,("gid_to_uid: winbindd %s -> %u\n",
+ sid_to_string(sid_str, psid),
+ (unsigned int)*pgid ));
+
+ return True;
+}
+
#undef OLD_NTDOMAIN
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