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 #include "lib/util/string_wrappers.h"
  24
  25 struct winbindd_getdcname_state {
  26         struct netr_DsRGetDCNameInfo *dcinfo;
  27 };
  28
  29 static void winbindd_getdcname_done(struct tevent_req *subreq);
  30
  31 struct tevent_req *winbindd_getdcname_send(TALLOC_CTX *mem_ctx,
  32                                            struct tevent_context *ev,
  33                                            struct winbindd_cli_state *cli,
  34                                            struct winbindd_request *request)
  35 {
  36         struct tevent_req *req, *subreq;
  37         struct winbindd_getdcname_state *state;
  38
  39         req = tevent_req_create(mem_ctx, &state,
  40                                 struct winbindd_getdcname_state);
  41         if (req == NULL) {
  42                 return NULL;
  43         }
  44
  45         request->domain_name[sizeof(request->domain_name)-1] = '\0';
  46
  47         D_NOTICE("[%s (%u)] Winbind external command GETDCNAME start.\n"
  48                  "Search DCNAME for domain %s.\n",
  49                  cli->client_name,
  50                  (unsigned int)cli->pid,
  51                  request->domain_name);
  52
  53         subreq = wb_dsgetdcname_send(state, ev, request->domain_name, NULL,
  54                                      NULL, 0);
  55         if (tevent_req_nomem(subreq, req)) {
  56                 return tevent_req_post(req, ev);
  57         }
  58         tevent_req_set_callback(subreq, winbindd_getdcname_done, req);
  59         return req;
  60 }
  61
  62 static void winbindd_getdcname_done(struct tevent_req *subreq)
  63 {
  64         struct tevent_req *req = tevent_req_callback_data(
  65                 subreq, struct tevent_req);
  66         struct winbindd_getdcname_state *state = tevent_req_data(
  67                 req, struct winbindd_getdcname_state);
  68         NTSTATUS status;
  69
  70         status = wb_dsgetdcname_recv(subreq, state, &state->dcinfo);
  71         TALLOC_FREE(subreq);
  72         if (tevent_req_nterror(req, status)) {
  73                 return;
  74         }
  75         tevent_req_done(req);
  76 }
  77
  78 NTSTATUS winbindd_getdcname_recv(struct tevent_req *req,
  79                                  struct winbindd_response *response)
  80 {
  81         struct winbindd_getdcname_state *state = tevent_req_data(
  82                 req, struct winbindd_getdcname_state);
  83         NTSTATUS status;
  84
  85         if (tevent_req_is_nterror(req, &status)) {
  86                 D_WARNING("getdcname failed: %s\n", nt_errstr(status));
  87                 return status;
  88         }
  89         fstrcpy(response->data.dc_name, strip_hostname(state->dcinfo->dc_unc));
  90
  91         D_NOTICE("Winbind external command GETDCNAME end.\n"
  92                  "Got DCNAME '%s'.\n",
  93                  response->data.dc_name);
  94         return NT_STATUS_OK;
  95 }