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 *p = NULL;
  39         const char *domname = NULL;
  40         const char *name = NULL;
  41         const char *namespace = NULL;
  42
  43         req = tevent_req_create(mem_ctx, &state,
  44                                 struct winbindd_lookupname_state);
  45         if (req == NULL) {
  46                 return NULL;
  47         }
  48         state->ev = ev;
  49
  50         /* Ensure null termination */
  51         request->data.name.dom_name[
  52                 sizeof(request->data.name.dom_name)-1]='\0';
  53         request->data.name.name[sizeof(request->data.name.name)-1]='\0';
  54
  55         if (strlen(request->data.name.dom_name) == 0) {
  56                 /* cope with the name being a fully qualified name */
  57                 p = strstr(request->data.name.name, lp_winbind_separator());
  58                 if (p != NULL) {
  59                         *p = '\0';
  60                         domname = request->data.name.name;
  61                         namespace = domname;
  62                         name = p + 1;
  63                 } else {
  64                         p = strchr(request->data.name.name, '@');
  65                         if (p != NULL) {
  66                                 /* upn */
  67                                 namespace = p + 1;
  68                         } else {
  69                                 namespace = "";
  70                         }
  71                         domname = "";
  72                         name = request->data.name.name;
  73                 }
  74         } else {
  75                 domname = request->data.name.dom_name;
  76                 namespace = domname;
  77                 name = request->data.name.name;
  78         }
  79
  80         DEBUG(3, ("lookupname %s%s%s\n", domname, lp_winbind_separator(),
  81                   name));
  82
  83         subreq = wb_lookupname_send(state, ev, namespace, domname, name, 0);
  84         if (tevent_req_nomem(subreq, req)) {
  85                 return tevent_req_post(req, ev);
  86         }
  87         tevent_req_set_callback(subreq, winbindd_lookupname_done, req);
  88         return req;
  89 }
  90
  91 static void winbindd_lookupname_done(struct tevent_req *subreq)
  92 {
  93         struct tevent_req *req = tevent_req_callback_data(
  94                 subreq, struct tevent_req);
  95         struct winbindd_lookupname_state *state = tevent_req_data(
  96                 req, struct winbindd_lookupname_state);
  97         NTSTATUS status;
  98
  99         status = wb_lookupname_recv(subreq, &state->sid, &state->type);
 100         TALLOC_FREE(subreq);
 101         if (tevent_req_nterror(req, status)) {
 102                 return;
 103         }
 104         tevent_req_done(req);
 105 }
 106
 107 NTSTATUS winbindd_lookupname_recv(struct tevent_req *req,
 108                                   struct winbindd_response *response)
 109 {
 110         struct winbindd_lookupname_state *state = tevent_req_data(
 111                 req, struct winbindd_lookupname_state);
 112         NTSTATUS status;
 113
 114         if (tevent_req_is_nterror(req, &status)) {
 115                 DEBUG(5, ("Could not convert sid %s: %s\n",
 116                           sid_string_dbg(&state->sid), nt_errstr(status)));
 117                 return status;
 118         }
 119         sid_to_fstring(response->data.sid.sid, &state->sid);
 120         response->data.sid.type = state->type;
 121         return NT_STATUS_OK;
 122 }