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         uint32_t 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         D_NOTICE("[%s (%u)] Winbind external command GETUSERSIDS start.\n"
  50                  "sid=%s\n",
  51                  cli->client_name,
  52                  (unsigned int)cli->pid,
  53                  request->data.sid);
  54
  55         if (!string_to_sid(&state->sid, request->data.sid)) {
  56                 D_WARNING("Returning NT_STATUS_INVALID_PARAMETER.\n"
  57                           "Could not get convert sid %s from string\n",
  58                           request->data.sid);
  59                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
  60                 return tevent_req_post(req, ev);
  61         }
  62
  63         subreq = wb_gettoken_send(state, ev, &state->sid, true);
  64         if (tevent_req_nomem(subreq, req)) {
  65                 return tevent_req_post(req, ev);
  66         }
  67         tevent_req_set_callback(subreq, winbindd_getusersids_done, req);
  68         return req;
  69 }
  70
  71 static void winbindd_getusersids_done(struct tevent_req *subreq)
  72 {
  73         struct tevent_req *req = tevent_req_callback_data(
  74                 subreq, struct tevent_req);
  75         struct winbindd_getusersids_state *state = tevent_req_data(
  76                 req, struct winbindd_getusersids_state);
  77         NTSTATUS status;
  78
  79         status = wb_gettoken_recv(subreq, state, &state->num_sids,
  80                                   &state->sids);
  81         TALLOC_FREE(subreq);
  82         if (tevent_req_nterror(req, status)) {
  83                 D_WARNING("wb_gettoken_recv failed with %s.\n",
  84                           nt_errstr(status));
  85                 return;
  86         }
  87         tevent_req_done(req);
  88 }
  89
  90 NTSTATUS winbindd_getusersids_recv(struct tevent_req *req,
  91                                    struct winbindd_response *response)
  92 {
  93         struct winbindd_getusersids_state *state = tevent_req_data(
  94                 req, struct winbindd_getusersids_state);
  95         struct dom_sid_buf sidbuf;
  96         NTSTATUS status;
  97         uint32_t i;
  98         char *result;
  99
 100         if (tevent_req_is_nterror(req, &status)) {
 101                 D_WARNING("Could not convert sid %s: %s\n",
 102                           dom_sid_str_buf(&state->sid, &sidbuf),
 103                           nt_errstr(status));
 104                 return status;
 105         }
 106
 107         result = talloc_strdup(response, "");
 108         if (result == NULL) {
 109                 return NT_STATUS_NO_MEMORY;
 110         }
 111
 112         D_NOTICE("Winbind external command GETUSERSIDS end.\n"
 113                  "Got %"PRIu32" SID(s).\n", state->num_sids);
 114         for (i=0; i<state->num_sids; i++) {
 115                 D_NOTICE("%"PRIu32": %s\n",
 116                          i,
 117                          dom_sid_str_buf(&state->sids[i], &sidbuf));
 118                 talloc_asprintf_addbuf(
 119                         &result,
 120                         "%s\n",
 121                         dom_sid_str_buf(&state->sids[i], &sidbuf));
 122         }
 123
 124         response->data.num_entries = state->num_sids;
 125         response->extra_data.data = result;
 126         response->length += talloc_get_size(result);
 127         return NT_STATUS_OK;
 128 }