NTSTATUS idmap_gid_to_sid(struct dom_sid *sid, gid_t gid)
{
NTSTATUS ret;
struct id_map map;
bool expired;
DEBUG(10, ("idmap_gid_to_sid: gid = [%lu]\n", (unsigned long)gid));
if (winbindd_use_idmap_cache()
&& idmap_cache_find_gid2sid(gid, sid, &expired)) {
DEBUG(10, ("idmap_cache_find_gid2sid found %u%s\n",
(unsigned int)gid,
expired ? " (expired)": ""));
if (expired && idmap_is_online()) {
DEBUG(10, ("revalidating expired entry\n"));
goto backend;
}
if (is_null_sid(sid)) {
DEBUG(10, ("Returning negative cache entry\n"));
return NT_STATUS_NONE_MAPPED;
}
DEBUG(10, ("Returning positive cache entry\n"));
return NT_STATUS_OK;
}
backend:
ZERO_STRUCT(map);
map.sid = sid;
map.xid.type = ID_TYPE_GID;
map.xid.id = gid;
ret = idmap_backends_unixid_to_sid(&map);
if ( ! NT_STATUS_IS_OK(ret)) {
DEBUG(10, ("error mapping gid [%lu]: %s\n", (unsigned long)gid,
nt_errstr(ret)));
map.status = ID_UNMAPPED;
}
if (map.status != ID_MAPPED) {
if (winbindd_use_idmap_cache()) {
struct dom_sid null_sid;
struct unixid id;
id.type = ID_TYPE_GID;
id.id = gid;
ZERO_STRUCT(null_sid);
idmap_cache_set_sid2unixid(&null_sid, &id);
}
DEBUG(10, ("gid [%lu] not mapped\n", (unsigned long)gid));
return NT_STATUS_NONE_MAPPED;
}
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2unixid(sid, &map.xid);
}
return NT_STATUS_OK;
}
NTSTATUS idmap_gid_to_sid(const char *domname, DOM_SID *sid, gid_t gid)
{
NTSTATUS ret;
struct id_map map;
bool expired;
DEBUG(10,("idmap_gid_to_si: gid = [%lu], domain = '%s'\n",
(unsigned long)gid, domname?domname:"NULL"));
if (winbindd_use_idmap_cache()
&& idmap_cache_find_gid2sid(gid, sid, &expired)) {
DEBUG(10, ("idmap_cache_find_gid2sid found %d%s\n", gid,
expired ? " (expired)": ""));
if (expired && idmap_is_online()) {
DEBUG(10, ("revalidating expired entry\n"));
goto backend;
}
if (is_null_sid(sid)) {
DEBUG(10, ("Returning negative cache entry\n"));
return NT_STATUS_NONE_MAPPED;
}
DEBUG(10, ("Returning positive cache entry\n"));
return NT_STATUS_OK;
}
backend:
map.sid = sid;
map.xid.type = ID_TYPE_GID;
map.xid.id = gid;
ret = idmap_backends_unixid_to_sid(domname, &map);
if ( ! NT_STATUS_IS_OK(ret)) {
DEBUG(10, ("error mapping gid [%lu]\n", (unsigned long)gid));
return ret;
}
if (map.status != ID_MAPPED) {
if (winbindd_use_idmap_cache()) {
struct dom_sid null_sid;
ZERO_STRUCT(null_sid);
idmap_cache_set_sid2uid(&null_sid, gid);
}
DEBUG(10, ("gid [%lu] not mapped\n", (unsigned long)gid));
return NT_STATUS_NONE_MAPPED;
}
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2gid(sid, gid);
}
return NT_STATUS_OK;
}
NTSTATUS idmap_sid_to_gid(const char *domname, DOM_SID *sid, gid_t *gid)
{
NTSTATUS ret;
struct id_map map;
bool expired;
DEBUG(10,("idmap_sid_to_gid: sid = [%s], domain = '%s'\n",
sid_string_dbg(sid), domname));
if (winbindd_use_idmap_cache()
&& idmap_cache_find_sid2gid(sid, gid, &expired)) {
DEBUG(10, ("idmap_cache_find_sid2gid found %d%s\n",
(int)(*gid), expired ? " (expired)": ""));
if (expired && idmap_is_online()) {
DEBUG(10, ("revalidating expired entry\n"));
goto backend;
}
if ((*gid) == -1) {
DEBUG(10, ("Returning negative cache entry\n"));
return NT_STATUS_NONE_MAPPED;
}
DEBUG(10, ("Returning positive cache entry\n"));
return NT_STATUS_OK;
}
backend:
map.sid = sid;
map.xid.type = ID_TYPE_GID;
ret = idmap_backends_sid_to_unixid(domname, &map);
if (NT_STATUS_IS_OK(ret) && (map.status == ID_MAPPED)) {
if (map.xid.type != ID_TYPE_GID) {
DEBUG(10, ("sid [%s] not mapped to a gid "
"[%u,%u,%u]\n",
sid_string_dbg(sid),
map.status,
map.xid.type,
map.xid.id));
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2gid(sid, -1);
}
return NT_STATUS_NONE_MAPPED;
}
goto done;
}
if (domname[0] != '\0') {
/*
* We had the task to go to a specific domain which
* could not answer our request. Fail.
*/
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2uid(sid, -1);
}
return NT_STATUS_NONE_MAPPED;
}
ret = idmap_new_mapping(sid, ID_TYPE_GID, &map.xid);
if (!NT_STATUS_IS_OK(ret)) {
DEBUG(10, ("idmap_new_mapping failed: %s\n",
nt_errstr(ret)));
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2gid(sid, -1);
}
return ret;
}
done:
*gid = map.xid.id;
if (winbindd_use_idmap_cache()) {
idmap_cache_set_sid2gid(sid, *gid);
}
return NT_STATUS_OK;
}
