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 #include "../libcli/security/security.h"
  23
  24 struct winbindd_lookupsid_state {
  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
  47         /* Ensure null termination */
  48         request->data.sid[sizeof(request->data.sid)-1]='\0';
  49
  50         DEBUG(3, ("lookupsid %s\n", request->data.sid));
  51
  52         if (!string_to_sid(&state->sid, request->data.sid)) {
  53                 DEBUG(5, ("%s not a SID\n", request->data.sid));
  54                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
  55                 return tevent_req_post(req, ev);
  56         }
  57
  58         subreq = wb_lookupsid_send(state, ev, &state->sid);
  59         if (tevent_req_nomem(subreq, req)) {
  60                 return tevent_req_post(req, ev);
  61         }
  62         tevent_req_set_callback(subreq, winbindd_lookupsid_done, req);
  63         return req;
  64 }
  65
  66 static void winbindd_lookupsid_done(struct tevent_req *subreq)
  67 {
  68         struct tevent_req *req = tevent_req_callback_data(
  69                 subreq, struct tevent_req);
  70         struct winbindd_lookupsid_state *state = tevent_req_data(
  71                 req, struct winbindd_lookupsid_state);
  72         NTSTATUS status;
  73
  74         status = wb_lookupsid_recv(subreq, state, &state->type,
  75                                    &state->domname, &state->name);
  76         TALLOC_FREE(subreq);
  77         if (!NT_STATUS_IS_OK(status)) {
  78                 tevent_req_nterror(req, status);
  79                 return;
  80         }
  81         tevent_req_done(req);
  82 }
  83
  84 NTSTATUS winbindd_lookupsid_recv(struct tevent_req *req,
  85                                  struct winbindd_response *response)
  86 {
  87         struct winbindd_lookupsid_state *state = tevent_req_data(
  88                 req, struct winbindd_lookupsid_state);
  89         NTSTATUS status;
  90
  91         if (tevent_req_is_nterror(req, &status)) {
  92                 struct dom_sid_buf buf;
  93                 DEBUG(5, ("Could not lookup sid %s: %s\n",
  94                           dom_sid_str_buf(&state->sid, &buf),
  95                           nt_errstr(status)));
  96                 return status;
  97         }
  98
  99         fstrcpy(response->data.name.dom_name, state->domname);
 100         fstrcpy(response->data.name.name, state->name);
 101         response->data.name.type = state->type;
 102         return NT_STATUS_OK;
 103 }