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         DEBUG(3, ("getusersids %s\n", request->data.sid));
  50
  51         if (!string_to_sid(&state->sid, request->data.sid)) {
  52                 DEBUG(1, ("Could not get convert sid %s from string\n",
  53                           request->data.sid));
  54                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
  55                 return tevent_req_post(req, ev);
  56         }
  57
  58         subreq = wb_gettoken_send(state, ev, &state->sid, true);
  59         if (tevent_req_nomem(subreq, req)) {
  60                 return tevent_req_post(req, ev);
  61         }
  62         tevent_req_set_callback(subreq, winbindd_getusersids_done, req);
  63         return req;
  64 }
  65
  66 static void winbindd_getusersids_done(struct tevent_req *subreq)
  67 {
  68         struct tevent_req *req = tevent_req_callback_data(
  69                 subreq, struct tevent_req);
  70         struct winbindd_getusersids_state *state = tevent_req_data(
  71                 req, struct winbindd_getusersids_state);
  72         NTSTATUS status;
  73
  74         status = wb_gettoken_recv(subreq, state, &state->num_sids,
  75                                   &state->sids);
  76         TALLOC_FREE(subreq);
  77         if (tevent_req_nterror(req, status)) {
  78                 return;
  79         }
  80         tevent_req_done(req);
  81 }
  82
  83 NTSTATUS winbindd_getusersids_recv(struct tevent_req *req,
  84                                    struct winbindd_response *response)
  85 {
  86         struct winbindd_getusersids_state *state = tevent_req_data(
  87                 req, struct winbindd_getusersids_state);
  88         NTSTATUS status;
  89         int i;
  90         char *result;
  91
  92         if (tevent_req_is_nterror(req, &status)) {
  93                 DEBUG(5, ("Could not convert sid %s: %s\n",
  94                           sid_string_dbg(&state->sid), nt_errstr(status)));
  95                 return status;
  96         }
  97
  98         result = talloc_strdup(response, "");
  99         if (result == NULL) {
 100                 return NT_STATUS_NO_MEMORY;
 101         }
 102
 103         for (i=0; i<state->num_sids; i++) {
 104                 char *str = sid_string_tos(&state->sids[i]);
 105                 if (str == NULL) {
 106                         TALLOC_FREE(result);
 107                         return NT_STATUS_NO_MEMORY;
 108                 }
 109                 result = talloc_asprintf_append_buffer(result, "%s\n", str);
 110                 TALLOC_FREE(str);
 111                 if (result == NULL) {
 112                         return NT_STATUS_NO_MEMORY;
 113                 }
 114         }
 115
 116         response->data.num_entries = state->num_sids;
 117         response->extra_data.data = result;
 118         response->length += talloc_get_size(result);
 119         return NT_STATUS_OK;
 120 }