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4f305f438b
metze Autobuild-User: Stefan Metzmacher <metze@samba.org> Autobuild-Date: Tue Jan 11 15:40:22 CET 2011 on sn-devel-104
169 lines
4.4 KiB
C
169 lines
4.4 KiB
C
/*
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Unix SMB/CIFS implementation.
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async sid2gid
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Copyright (C) Volker Lendecke 2009
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "winbindd.h"
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#include "librpc/gen_ndr/ndr_wbint_c.h"
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#include "idmap_cache.h"
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#include "../libcli/security/security.h"
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struct wb_sid2gid_state {
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struct tevent_context *ev;
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struct dom_sid sid;
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char *dom_name;
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uint64 gid64;
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gid_t gid;
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};
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static void wb_sid2gid_lookup_done(struct tevent_req *subreq);
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static void wb_sid2gid_done(struct tevent_req *subreq);
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struct tevent_req *wb_sid2gid_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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const struct dom_sid *sid)
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{
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struct tevent_req *req, *subreq;
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struct wb_sid2gid_state *state;
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bool expired;
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req = tevent_req_create(mem_ctx, &state, struct wb_sid2gid_state);
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if (req == NULL) {
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return NULL;
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}
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sid_copy(&state->sid, sid);
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state->ev = ev;
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if (winbindd_use_idmap_cache()
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&& idmap_cache_find_sid2gid(sid, &state->gid, &expired)) {
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DEBUG(10, ("idmap_cache_find_sid2gid found %d%s\n",
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(int)state->gid, expired ? " (expired)": ""));
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if (!expired || is_domain_offline(find_our_domain())) {
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if (state->gid == -1) {
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tevent_req_nterror(req, NT_STATUS_NONE_MAPPED);
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} else {
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tevent_req_done(req);
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}
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return tevent_req_post(req, ev);
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}
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}
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/*
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* We need to make sure the sid is of the right type to not flood
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* idmap with wrong entries
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*/
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subreq = wb_lookupsid_send(state, ev, &state->sid);
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if (tevent_req_nomem(subreq, req)) {
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return tevent_req_post(req, ev);
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}
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tevent_req_set_callback(subreq, wb_sid2gid_lookup_done, req);
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return req;
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}
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static void wb_sid2gid_lookup_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct wb_sid2gid_state *state = tevent_req_data(
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req, struct wb_sid2gid_state);
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struct winbindd_domain *domain;
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const char *domname;
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const char *name;
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enum lsa_SidType type;
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NTSTATUS status;
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struct winbindd_child *child;
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status = wb_lookupsid_recv(subreq, talloc_tos(), &type, &domname,
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&name);
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if (!NT_STATUS_IS_OK(status)) {
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tevent_req_nterror(req, status);
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return;
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}
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if ((type != SID_NAME_DOM_GRP) && (type != SID_NAME_ALIAS)
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&& (type != SID_NAME_WKN_GRP)) {
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DEBUG(5, ("Sid %s is not a group.\n",
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sid_string_dbg(&state->sid)));
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/*
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* We have to set the cache ourselves here, the child
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* which is normally responsible was not queried yet.
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*/
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idmap_cache_set_sid2gid(&state->sid, -1);
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tevent_req_nterror(req, NT_STATUS_INVALID_SID);
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return;
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}
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domain = find_domain_from_sid_noinit(&state->sid);
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/*
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* TODO: Issue a gettrustinfo here in case we don't have "domain" yet?
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*/
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if ((domain != NULL) && domain->have_idmap_config) {
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state->dom_name = domain->name;
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} else {
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state->dom_name = NULL;
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}
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child = idmap_child();
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subreq = dcerpc_wbint_Sid2Gid_send(state, state->ev, child->binding_handle,
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state->dom_name, &state->sid,
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&state->gid64);
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if (tevent_req_nomem(subreq, req)) {
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return;
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}
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tevent_req_set_callback(subreq, wb_sid2gid_done, req);
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}
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static void wb_sid2gid_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(
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subreq, struct tevent_req);
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struct wb_sid2gid_state *state = tevent_req_data(
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req, struct wb_sid2gid_state);
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NTSTATUS status, result;
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status = dcerpc_wbint_Sid2Gid_recv(subreq, state, &result);
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TALLOC_FREE(subreq);
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if (any_nt_status_not_ok(status, result, &status)) {
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tevent_req_nterror(req, status);
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return;
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}
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state->gid = state->gid64;
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tevent_req_done(req);
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}
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NTSTATUS wb_sid2gid_recv(struct tevent_req *req, gid_t *gid)
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{
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struct wb_sid2gid_state *state = tevent_req_data(
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req, struct wb_sid2gid_state);
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NTSTATUS status;
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if (tevent_req_is_nterror(req, &status)) {
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return status;
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}
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*gid = state->gid;
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return NT_STATUS_OK;
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}
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