source3/winbindd/winbindd_lookupname.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_GETPWNAM
   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_lookupname_state {
  24         struct tevent_context *ev;
  25         struct dom_sid sid;
  26         enum lsa_SidType type;
  27 };
  28
  29 static void winbindd_lookupname_done(struct tevent_req *subreq);
  30
  31 struct tevent_req *winbindd_lookupname_send(TALLOC_CTX *mem_ctx,
  32                                             struct tevent_context *ev,
  33                                             struct winbindd_request *request)
  34 {
  35         struct tevent_req *req, *subreq;
  36         struct winbindd_lookupname_state *state;
  37         char *domname, *name, *p;
  38
  39         req = tevent_req_create(mem_ctx, &state,
  40                                 struct winbindd_lookupname_state);
  41         if (req == NULL) {
  42                 return NULL;
  43         }
  44         state->ev = ev;
  45
  46         /* Ensure null termination */
  47         request->data.name.dom_name[
  48                 sizeof(request->data.name.dom_name)-1]='\0';
  49         request->data.name.name[sizeof(request->data.name.name)-1]='\0';
  50
  51         /* cope with the name being a fully qualified name */
  52         p = strstr(request->data.name.name, lp_winbind_separator());
  53         if (p) {
  54                 *p = 0;
  55                 domname = request->data.name.name;
  56                 name = p+1;
  57         } else if ((p = strchr(request->data.name.name, '@')) != NULL) {
  58                 /* upn */
  59                 domname = p + 1;
  60                 *p = 0;
  61                 name = request->data.name.name;
  62         } else {
  63                 domname = request->data.name.dom_name;
  64                 name = request->data.name.name;
  65         }
  66
  67         DEBUG(3, ("lookupname %s%s%s\n", domname, lp_winbind_separator(),
  68                   name));
  69
  70         subreq = wb_lookupname_send(state, ev, domname, name, 0);
  71         if (tevent_req_nomem(subreq, req)) {
  72                 return tevent_req_post(req, ev);
  73         }
  74         tevent_req_set_callback(subreq, winbindd_lookupname_done, req);
  75         return req;
  76 }
  77
  78 static void winbindd_lookupname_done(struct tevent_req *subreq)
  79 {
  80         struct tevent_req *req = tevent_req_callback_data(
  81                 subreq, struct tevent_req);
  82         struct winbindd_lookupname_state *state = tevent_req_data(
  83                 req, struct winbindd_lookupname_state);
  84         NTSTATUS status;
  85
  86         status = wb_lookupname_recv(subreq, &state->sid, &state->type);
  87         TALLOC_FREE(subreq);
  88         if (!NT_STATUS_IS_OK(status)) {
  89                 tevent_req_nterror(req, status);
  90                 return;
  91         }
  92         tevent_req_done(req);
  93 }
  94
  95 NTSTATUS winbindd_lookupname_recv(struct tevent_req *req,
  96                                   struct winbindd_response *response)
  97 {
  98         struct winbindd_lookupname_state *state = tevent_req_data(
  99                 req, struct winbindd_lookupname_state);
 100         NTSTATUS status;
 101
 102         if (tevent_req_is_nterror(req, &status)) {
 103                 DEBUG(5, ("Could not convert sid %s: %s\n",
 104                           sid_string_dbg(&state->sid), nt_errstr(status)));
 105                 return status;
 106         }
 107         sid_to_fstring(response->data.sid.sid, &state->sid);
 108         response->data.sid.type = state->type;
 109         return NT_STATUS_OK;
 110 }