source3/winbindd/wb_lookupusergroups.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async lookupusergroups
   4    Copyright (C) Volker Lendecke 2009
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "winbindd.h"
  22 #include "librpc/gen_ndr/ndr_winbind_c.h"
  23 #include "../libcli/security/security.h"
  24
  25 struct wb_lookupusergroups_state {
  26         struct tevent_context *ev;
  27         struct dom_sid sid;
  28         struct wbint_SidArray sids;
  29 };
  30
  31 static void wb_lookupusergroups_done(struct tevent_req *subreq);
  32
  33 struct tevent_req *wb_lookupusergroups_send(TALLOC_CTX *mem_ctx,
  34                                             struct tevent_context *ev,
  35                                             const struct dom_sid *sid)
  36 {
  37         struct tevent_req *req, *subreq;
  38         struct wb_lookupusergroups_state *state;
  39         struct winbindd_domain *domain;
  40         NTSTATUS status;
  41         struct dom_sid_buf buf;
  42
  43         req = tevent_req_create(mem_ctx, &state,
  44                                 struct wb_lookupusergroups_state);
  45         if (req == NULL) {
  46                 return NULL;
  47         }
  48         D_INFO("WB command lookupusergroups start.\nLooking up SID %s.\n",
  49                dom_sid_str_buf(sid, &buf));
  50         sid_copy(&state->sid, sid);
  51
  52         status = lookup_usergroups_cached(state,
  53                                           &state->sid,
  54                                           &state->sids.num_sids,
  55                                           &state->sids.sids);
  56         if (NT_STATUS_IS_OK(status)) {
  57                 tevent_req_done(req);
  58                 return tevent_req_post(req, ev);
  59         }
  60
  61         domain = find_domain_from_sid_noinit(&state->sid);
  62         if (domain == NULL) {
  63                 DBG_WARNING("could not find domain entry for sid %s\n",
  64                             dom_sid_str_buf(&state->sid, &buf));
  65                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
  66                 return tevent_req_post(req, ev);
  67         }
  68
  69         subreq = dcerpc_wbint_LookupUserGroups_send(
  70                 state, ev, dom_child_handle(domain), &state->sid, &state->sids);
  71         if (tevent_req_nomem(subreq, req)) {
  72                 return tevent_req_post(req, ev);
  73         }
  74         tevent_req_set_callback(subreq, wb_lookupusergroups_done, req);
  75         return req;
  76 }
  77
  78 static void wb_lookupusergroups_done(struct tevent_req *subreq)
  79 {
  80         struct tevent_req *req = tevent_req_callback_data(
  81                 subreq, struct tevent_req);
  82         struct wb_lookupusergroups_state *state = tevent_req_data(
  83                 req, struct wb_lookupusergroups_state);
  84         NTSTATUS status, result;
  85
  86         status = dcerpc_wbint_LookupUserGroups_recv(subreq, state, &result);
  87         TALLOC_FREE(subreq);
  88         if (any_nt_status_not_ok(status, result, &status)) {
  89                 D_WARNING("Failed with %s.\n", nt_errstr(status));
  90                 tevent_req_nterror(req, status);
  91                 return;
  92         }
  93         tevent_req_done(req);
  94 }
  95
  96 NTSTATUS wb_lookupusergroups_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
  97                                   uint32_t *num_sids, struct dom_sid **sids)
  98 {
  99         struct wb_lookupusergroups_state *state = tevent_req_data(
 100                 req, struct wb_lookupusergroups_state);
 101         NTSTATUS status;
 102         uint32_t i;
 103
 104         if (tevent_req_is_nterror(req, &status)) {
 105                 return status;
 106         }
 107         *num_sids = state->sids.num_sids;
 108         *sids = talloc_move(mem_ctx, &state->sids.sids);
 109
 110         D_INFO("WB command lookupusergroups end.\nReceived %"PRIu32" SID(s).\n",
 111                *num_sids);
 112         if (CHECK_DEBUGLVL(DBGLVL_INFO)) {
 113                 for (i = 0; i < *num_sids; i++) {
 114                         struct dom_sid_buf buf;
 115                         D_INFO("%"PRIu32": %s\n",
 116                                i, dom_sid_str_buf(&(*sids)[i], &buf));
 117                 }
 118         }
 119         return NT_STATUS_OK;
 120 }