source3/winbindd/winbindd_lookupsid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_LOOKUPSID
   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
  23 struct winbindd_lookupsid_state {
  24         struct tevent_context *ev;
  25         struct dom_sid sid;
  26         enum lsa_SidType type;
  27         const char *domname;
  28         const char *name;
  29 };
  30
  31 static void winbindd_lookupsid_done(struct tevent_req *subreq);
  32
  33 struct tevent_req *winbindd_lookupsid_send(TALLOC_CTX *mem_ctx,
  34                                           struct tevent_context *ev,
  35                                            struct winbindd_cli_state *cli,
  36                                            struct winbindd_request *request)
  37 {
  38         struct tevent_req *req, *subreq;
  39         struct winbindd_lookupsid_state *state;
  40
  41         req = tevent_req_create(mem_ctx, &state,
  42                                 struct winbindd_lookupsid_state);
  43         if (req == NULL) {
  44                 return NULL;
  45         }
  46         state->ev = ev;
  47
  48         /* Ensure null termination */
  49         request->data.sid[sizeof(request->data.sid)-1]='\0';
  50
  51         DEBUG(3, ("lookupsid %s\n", request->data.sid));
  52
  53         if (!string_to_sid(&state->sid, request->data.sid)) {
  54                 DEBUG(5, ("%s not a SID\n", request->data.sid));
  55                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
  56                 return tevent_req_post(req, ev);;
  57         }
  58
  59         subreq = wb_lookupsid_send(state, ev, &state->sid);
  60         if (tevent_req_nomem(subreq, req)) {
  61                 return tevent_req_post(req, ev);
  62         }
  63         tevent_req_set_callback(subreq, winbindd_lookupsid_done, req);
  64         return req;
  65 }
  66
  67 static void winbindd_lookupsid_done(struct tevent_req *subreq)
  68 {
  69         struct tevent_req *req = tevent_req_callback_data(
  70                 subreq, struct tevent_req);
  71         struct winbindd_lookupsid_state *state = tevent_req_data(
  72                 req, struct winbindd_lookupsid_state);
  73         NTSTATUS status;
  74
  75         status = wb_lookupsid_recv(subreq, state, &state->type,
  76                                    &state->domname, &state->name);
  77         TALLOC_FREE(subreq);
  78         if (!NT_STATUS_IS_OK(status)) {
  79                 tevent_req_nterror(req, status);
  80                 return;
  81         }
  82         tevent_req_done(req);
  83 }
  84
  85 NTSTATUS winbindd_lookupsid_recv(struct tevent_req *req,
  86                                  struct winbindd_response *response)
  87 {
  88         struct winbindd_lookupsid_state *state = tevent_req_data(
  89                 req, struct winbindd_lookupsid_state);
  90         NTSTATUS status;
  91
  92         if (tevent_req_is_nterror(req, &status)) {
  93                 DEBUG(5, ("Could not lookup sid %s: %s\n",
  94                           sid_string_dbg(&state->sid), nt_errstr(status)));
  95                 return status;
  96         }
  97
  98         fstrcpy(response->data.name.dom_name, state->domname);
  99         fstrcpy(response->data.name.name, state->name);
 100         response->data.name.type = state->type;
 101         return NT_STATUS_OK;
 102 }