source3/winbindd/winbindd_getdcname.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_GETDCNAME
   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 "librpc/gen_ndr/ndr_winbind_c.h"
  23
  24 struct winbindd_getdcname_state {
  25         struct netr_DsRGetDCNameInfo *dcinfo;
  26 };
  27
  28 static void winbindd_getdcname_done(struct tevent_req *subreq);
  29
  30 struct tevent_req *winbindd_getdcname_send(TALLOC_CTX *mem_ctx,
  31                                            struct tevent_context *ev,
  32                                            struct winbindd_cli_state *cli,
  33                                            struct winbindd_request *request)
  34 {
  35         struct tevent_req *req, *subreq;
  36         struct winbindd_getdcname_state *state;
  37
  38         req = tevent_req_create(mem_ctx, &state,
  39                                 struct winbindd_getdcname_state);
  40         if (req == NULL) {
  41                 return NULL;
  42         }
  43
  44         request->domain_name[sizeof(request->domain_name)-1] = '\0';
  45
  46         DBG_NOTICE("[%s (%u)] getdcname for %s\n",
  47                    cli->client_name,
  48                    (unsigned int)cli->pid,
  49                    request->domain_name);
  50
  51         subreq = wb_dsgetdcname_send(state, ev, request->domain_name, NULL,
  52                                      NULL, 0);
  53         if (tevent_req_nomem(subreq, req)) {
  54                 return tevent_req_post(req, ev);
  55         }
  56         tevent_req_set_callback(subreq, winbindd_getdcname_done, req);
  57         return req;
  58 }
  59
  60 static void winbindd_getdcname_done(struct tevent_req *subreq)
  61 {
  62         struct tevent_req *req = tevent_req_callback_data(
  63                 subreq, struct tevent_req);
  64         struct winbindd_getdcname_state *state = tevent_req_data(
  65                 req, struct winbindd_getdcname_state);
  66         NTSTATUS status;
  67
  68         status = wb_dsgetdcname_recv(subreq, state, &state->dcinfo);
  69         TALLOC_FREE(subreq);
  70         if (tevent_req_nterror(req, status)) {
  71                 return;
  72         }
  73         tevent_req_done(req);
  74 }
  75
  76 NTSTATUS winbindd_getdcname_recv(struct tevent_req *req,
  77                                  struct winbindd_response *response)
  78 {
  79         struct winbindd_getdcname_state *state = tevent_req_data(
  80                 req, struct winbindd_getdcname_state);
  81         NTSTATUS status;
  82
  83         if (tevent_req_is_nterror(req, &status)) {
  84                 DEBUG(5, ("getdcname failed: %s\n", nt_errstr(status)));
  85                 return status;
  86         }
  87         fstrcpy(response->data.dc_name, strip_hostname(state->dcinfo->dc_unc));
  88         return NT_STATUS_OK;
  89 }