source3/winbindd/winbindd_getusersids.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_GETUSERSIDS
   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 "../libcli/security/security.h"
  23
  24 struct winbindd_getusersids_state {
  25         struct dom_sid sid;
  26         int num_sids;
  27         struct dom_sid *sids;
  28 };
  29
  30 static void winbindd_getusersids_done(struct tevent_req *subreq);
  31
  32 struct tevent_req *winbindd_getusersids_send(TALLOC_CTX *mem_ctx,
  33                                              struct tevent_context *ev,
  34                                              struct winbindd_cli_state *cli,
  35                                              struct winbindd_request *request)
  36 {
  37         struct tevent_req *req, *subreq;
  38         struct winbindd_getusersids_state *state;
  39
  40         req = tevent_req_create(mem_ctx, &state,
  41                                 struct winbindd_getusersids_state);
  42         if (req == NULL) {
  43                 return NULL;
  44         }
  45
  46         /* Ensure null termination */
  47         request->data.sid[sizeof(request->data.sid)-1]='\0';
  48
  49         DBG_NOTICE("[%s (%u)] getusersids %s\n",
  50                    cli->client_name,
  51                    (unsigned int)cli->pid,
  52                    request->data.sid);
  53
  54         if (!string_to_sid(&state->sid, request->data.sid)) {
  55                 DEBUG(1, ("Could not get convert sid %s from string\n",
  56                           request->data.sid));
  57                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
  58                 return tevent_req_post(req, ev);
  59         }
  60
  61         subreq = wb_gettoken_send(state, ev, &state->sid, true);
  62         if (tevent_req_nomem(subreq, req)) {
  63                 return tevent_req_post(req, ev);
  64         }
  65         tevent_req_set_callback(subreq, winbindd_getusersids_done, req);
  66         return req;
  67 }
  68
  69 static void winbindd_getusersids_done(struct tevent_req *subreq)
  70 {
  71         struct tevent_req *req = tevent_req_callback_data(
  72                 subreq, struct tevent_req);
  73         struct winbindd_getusersids_state *state = tevent_req_data(
  74                 req, struct winbindd_getusersids_state);
  75         NTSTATUS status;
  76
  77         status = wb_gettoken_recv(subreq, state, &state->num_sids,
  78                                   &state->sids);
  79         TALLOC_FREE(subreq);
  80         if (tevent_req_nterror(req, status)) {
  81                 return;
  82         }
  83         tevent_req_done(req);
  84 }
  85
  86 NTSTATUS winbindd_getusersids_recv(struct tevent_req *req,
  87                                    struct winbindd_response *response)
  88 {
  89         struct winbindd_getusersids_state *state = tevent_req_data(
  90                 req, struct winbindd_getusersids_state);
  91         struct dom_sid_buf sidbuf;
  92         NTSTATUS status;
  93         int i;
  94         char *result;
  95
  96         if (tevent_req_is_nterror(req, &status)) {
  97                 DEBUG(5, ("Could not convert sid %s: %s\n",
  98                           dom_sid_str_buf(&state->sid, &sidbuf),
  99                           nt_errstr(status)));
 100                 return status;
 101         }
 102
 103         result = talloc_strdup(response, "");
 104         if (result == NULL) {
 105                 return NT_STATUS_NO_MEMORY;
 106         }
 107
 108         for (i=0; i<state->num_sids; i++) {
 109                 result = talloc_asprintf_append_buffer(
 110                         result,
 111                         "%s\n",
 112                         dom_sid_str_buf(&state->sids[i], &sidbuf));
 113                 if (result == NULL) {
 114                         return NT_STATUS_NO_MEMORY;
 115                 }
 116         }
 117
 118         response->data.num_entries = state->num_sids;
 119         response->extra_data.data = result;
 120         response->length += talloc_get_size(result);
 121         return NT_STATUS_OK;
 122 }