mirror of
https://github.com/samba-team/samba.git
synced 2024-12-23 17:34:34 +03:00
9743be68d7
idmap_doms does not need a talloc of its own Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
299 lines
7.3 KiB
C
299 lines
7.3 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
async sids2xids
|
|
Copyright (C) Volker Lendecke 2011
|
|
Copyright (C) Michael Adam 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 "includes.h"
|
|
#include "winbindd.h"
|
|
#include "../libcli/security/security.h"
|
|
#include "idmap_cache.h"
|
|
#include "librpc/gen_ndr/ndr_winbind_c.h"
|
|
#include "lsa.h"
|
|
|
|
struct wb_sids2xids_state {
|
|
struct tevent_context *ev;
|
|
|
|
struct dom_sid *sids;
|
|
uint32_t num_sids;
|
|
|
|
struct id_map *cached;
|
|
|
|
struct dom_sid *non_cached;
|
|
uint32_t num_non_cached;
|
|
|
|
/*
|
|
* Domain array to use for the idmap call. The output from
|
|
* lookupsids cannot be used directly since for migrated
|
|
* objects the returned domain SID can be different that the
|
|
* original one. The new domain SID cannot be combined with
|
|
* the RID from the previous domain.
|
|
*
|
|
* The proper way would be asking for the correct RID in the
|
|
* new domain, but this approach avoids id mappings for
|
|
* invalid SIDs.
|
|
*/
|
|
struct lsa_RefDomainList idmap_doms;
|
|
|
|
struct wbint_TransIDArray ids;
|
|
};
|
|
|
|
|
|
static bool wb_sids2xids_in_cache(struct dom_sid *sid, struct id_map *map);
|
|
static void wb_sids2xids_lookupsids_done(struct tevent_req *subreq);
|
|
static void wb_sids2xids_done(struct tevent_req *subreq);
|
|
|
|
struct tevent_req *wb_sids2xids_send(TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
const struct dom_sid *sids,
|
|
const uint32_t num_sids)
|
|
{
|
|
struct tevent_req *req, *subreq;
|
|
struct wb_sids2xids_state *state;
|
|
uint32_t i;
|
|
|
|
req = tevent_req_create(mem_ctx, &state,
|
|
struct wb_sids2xids_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
state->ev = ev;
|
|
|
|
state->num_sids = num_sids;
|
|
|
|
state->sids = talloc_zero_array(state, struct dom_sid, num_sids);
|
|
if (tevent_req_nomem(state->sids, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
for (i = 0; i < num_sids; i++) {
|
|
sid_copy(&state->sids[i], &sids[i]);
|
|
}
|
|
|
|
state->cached = talloc_zero_array(state, struct id_map, num_sids);
|
|
if (tevent_req_nomem(state->cached, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
state->non_cached = talloc_array(state, struct dom_sid, num_sids);
|
|
if (tevent_req_nomem(state->non_cached, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
/*
|
|
* Extract those sids that can not be resolved from cache
|
|
* into a separate list to be handed to id mapping, keeping
|
|
* the same index.
|
|
*/
|
|
for (i=0; i<state->num_sids; i++) {
|
|
|
|
DEBUG(10, ("SID %d: %s\n", (int)i,
|
|
sid_string_dbg(&state->sids[i])));
|
|
|
|
if (wb_sids2xids_in_cache(&state->sids[i], &state->cached[i])) {
|
|
continue;
|
|
}
|
|
sid_copy(&state->non_cached[state->num_non_cached],
|
|
&state->sids[i]);
|
|
state->num_non_cached += 1;
|
|
}
|
|
|
|
if (state->num_non_cached == 0) {
|
|
tevent_req_done(req);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
subreq = wb_lookupsids_send(state, ev, state->non_cached,
|
|
state->num_non_cached);
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
tevent_req_set_callback(subreq, wb_sids2xids_lookupsids_done, req);
|
|
return req;
|
|
}
|
|
|
|
static bool wb_sids2xids_in_cache(struct dom_sid *sid, struct id_map *map)
|
|
{
|
|
struct unixid id;
|
|
bool expired;
|
|
|
|
if (!winbindd_use_idmap_cache()) {
|
|
return false;
|
|
}
|
|
if (idmap_cache_find_sid2unixid(sid, &id, &expired)) {
|
|
if (expired && is_domain_online(find_our_domain())) {
|
|
return false;
|
|
}
|
|
map->sid = sid;
|
|
map->xid = id;
|
|
map->status = ID_MAPPED;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static enum id_type lsa_SidType_to_id_type(const enum lsa_SidType sid_type);
|
|
|
|
static void wb_sids2xids_lookupsids_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req = tevent_req_callback_data(
|
|
subreq, struct tevent_req);
|
|
struct wb_sids2xids_state *state = tevent_req_data(
|
|
req, struct wb_sids2xids_state);
|
|
struct lsa_RefDomainList *domains = NULL;
|
|
struct lsa_TransNameArray *names = NULL;
|
|
struct winbindd_child *child;
|
|
NTSTATUS status;
|
|
int i;
|
|
|
|
status = wb_lookupsids_recv(subreq, state, &domains, &names);
|
|
TALLOC_FREE(subreq);
|
|
if (tevent_req_nterror(req, status)) {
|
|
return;
|
|
}
|
|
|
|
state->ids.num_ids = state->num_non_cached;
|
|
state->ids.ids = talloc_array(state, struct wbint_TransID,
|
|
state->num_non_cached);
|
|
if (tevent_req_nomem(state->ids.ids, req)) {
|
|
return;
|
|
}
|
|
|
|
for (i=0; i<state->num_non_cached; i++) {
|
|
struct dom_sid dom_sid;
|
|
struct lsa_DomainInfo *info;
|
|
struct lsa_TranslatedName *n = &names->names[i];
|
|
struct wbint_TransID *t = &state->ids.ids[i];
|
|
int domain_index;
|
|
|
|
sid_copy(&dom_sid, &state->non_cached[i]);
|
|
sid_split_rid(&dom_sid, &t->rid);
|
|
|
|
info = &domains->domains[n->sid_index];
|
|
t->type = lsa_SidType_to_id_type(n->sid_type);
|
|
|
|
domain_index = init_lsa_ref_domain_list(
|
|
state, &state->idmap_doms, info->name.string, &dom_sid);
|
|
if (domain_index == -1) {
|
|
tevent_req_oom(req);
|
|
return;
|
|
}
|
|
t->domain_index = domain_index;
|
|
|
|
t->xid.id = UINT32_MAX;
|
|
t->xid.type = t->type;
|
|
}
|
|
|
|
TALLOC_FREE(names);
|
|
TALLOC_FREE(domains);
|
|
|
|
child = idmap_child();
|
|
|
|
subreq = dcerpc_wbint_Sids2UnixIDs_send(
|
|
state, state->ev, child->binding_handle, &state->idmap_doms,
|
|
&state->ids);
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
return;
|
|
}
|
|
tevent_req_set_callback(subreq, wb_sids2xids_done, req);
|
|
}
|
|
|
|
static enum id_type lsa_SidType_to_id_type(const enum lsa_SidType sid_type)
|
|
{
|
|
enum id_type type;
|
|
|
|
switch(sid_type) {
|
|
case SID_NAME_COMPUTER:
|
|
case SID_NAME_USER:
|
|
type = ID_TYPE_UID;
|
|
break;
|
|
case SID_NAME_DOM_GRP:
|
|
case SID_NAME_ALIAS:
|
|
case SID_NAME_WKN_GRP:
|
|
type = ID_TYPE_GID;
|
|
break;
|
|
default:
|
|
type = ID_TYPE_NOT_SPECIFIED;
|
|
break;
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
|
|
static void wb_sids2xids_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req = tevent_req_callback_data(
|
|
subreq, struct tevent_req);
|
|
struct wb_sids2xids_state *state = tevent_req_data(
|
|
req, struct wb_sids2xids_state);
|
|
NTSTATUS status, result;
|
|
|
|
status = dcerpc_wbint_Sids2UnixIDs_recv(subreq, state, &result);
|
|
TALLOC_FREE(subreq);
|
|
if (any_nt_status_not_ok(status, result, &status)) {
|
|
tevent_req_nterror(req, status);
|
|
return;
|
|
}
|
|
tevent_req_done(req);
|
|
}
|
|
|
|
NTSTATUS wb_sids2xids_recv(struct tevent_req *req,
|
|
struct unixid xids[], uint32_t num_xids)
|
|
{
|
|
struct wb_sids2xids_state *state = tevent_req_data(
|
|
req, struct wb_sids2xids_state);
|
|
NTSTATUS status;
|
|
uint32_t i, num_non_cached;
|
|
|
|
if (tevent_req_is_nterror(req, &status)) {
|
|
DEBUG(5, ("wb_sids_to_xids failed: %s\n", nt_errstr(status)));
|
|
return status;
|
|
}
|
|
|
|
if (num_xids != state->num_sids) {
|
|
DEBUG(1, ("%s: Have %u xids, caller wants %u\n", __func__,
|
|
(unsigned)state->num_sids, num_xids));
|
|
return NT_STATUS_INTERNAL_ERROR;
|
|
}
|
|
|
|
num_non_cached = 0;
|
|
|
|
for (i=0; i<state->num_sids; i++) {
|
|
struct unixid xid;
|
|
|
|
xid.id = UINT32_MAX;
|
|
|
|
if (state->cached[i].sid != NULL) {
|
|
xid = state->cached[i].xid;
|
|
} else {
|
|
xid = state->ids.ids[num_non_cached].xid;
|
|
|
|
idmap_cache_set_sid2unixid(
|
|
&state->non_cached[num_non_cached],
|
|
&xid);
|
|
|
|
num_non_cached += 1;
|
|
}
|
|
|
|
xids[i] = xid;
|
|
}
|
|
|
|
return NT_STATUS_OK;
|
|
}
|