source3/winbindd/winbindd_lookupname.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_LOOKUPNAME
   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_cli_state *cli,
  34                                             struct winbindd_request *request)
  35 {
  36         struct tevent_req *req, *subreq;
  37         struct winbindd_lookupname_state *state;
  38         char *domname, *name, *p;
  39
  40         req = tevent_req_create(mem_ctx, &state,
  41                                 struct winbindd_lookupname_state);
  42         if (req == NULL) {
  43                 return NULL;
  44         }
  45         state->ev = ev;
  46
  47         /* Ensure null termination */
  48         request->data.name.dom_name[
  49                 sizeof(request->data.name.dom_name)-1]='\0';
  50         request->data.name.name[sizeof(request->data.name.name)-1]='\0';
  51
  52         /* cope with the name being a fully qualified name */
  53         p = strstr(request->data.name.name, lp_winbind_separator());
  54         if (p) {
  55                 *p = 0;
  56                 domname = request->data.name.name;
  57                 name = p+1;
  58         } else if ((p = strchr(request->data.name.name, '@')) != NULL) {
  59                 /* upn */
  60                 domname = p + 1;
  61                 *p = 0;
  62                 name = request->data.name.name;
  63         } else {
  64                 domname = request->data.name.dom_name;
  65                 name = request->data.name.name;
  66         }
  67
  68         DEBUG(3, ("lookupname %s%s%s\n", domname, lp_winbind_separator(),
  69                   name));
  70
  71         subreq = wb_lookupname_send(state, ev, domname, name, 0);
  72         if (tevent_req_nomem(subreq, req)) {
  73                 return tevent_req_post(req, ev);
  74         }
  75         tevent_req_set_callback(subreq, winbindd_lookupname_done, req);
  76         return req;
  77 }
  78
  79 static void winbindd_lookupname_done(struct tevent_req *subreq)
  80 {
  81         struct tevent_req *req = tevent_req_callback_data(
  82                 subreq, struct tevent_req);
  83         struct winbindd_lookupname_state *state = tevent_req_data(
  84                 req, struct winbindd_lookupname_state);
  85         NTSTATUS status;
  86
  87         status = wb_lookupname_recv(subreq, &state->sid, &state->type);
  88         TALLOC_FREE(subreq);
  89         if (!NT_STATUS_IS_OK(status)) {
  90                 tevent_req_nterror(req, status);
  91                 return;
  92         }
  93         tevent_req_done(req);
  94 }
  95
  96 NTSTATUS winbindd_lookupname_recv(struct tevent_req *req,
  97                                   struct winbindd_response *response)
  98 {
  99         struct winbindd_lookupname_state *state = tevent_req_data(
 100                 req, struct winbindd_lookupname_state);
 101         NTSTATUS status;
 102
 103         if (tevent_req_is_nterror(req, &status)) {
 104                 DEBUG(5, ("Could not convert sid %s: %s\n",
 105                           sid_string_dbg(&state->sid), nt_errstr(status)));
 106                 return status;
 107         }
 108         sid_to_fstring(response->data.sid.sid, &state->sid);
 109         response->data.sid.type = state->type;
 110         return NT_STATUS_OK;
 111 }