source3/winbindd/winbindd_getpwuid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_GETPWUID
   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 "libcli/security/dom_sid.h"
  23
  24 struct winbindd_getpwuid_state {
  25         struct tevent_context *ev;
  26         struct unixid xid;
  27         struct dom_sid *sid;
  28         struct winbindd_pw pw;
  29 };
  30
  31 static void winbindd_getpwuid_uid2sid_done(struct tevent_req *subreq);
  32 static void winbindd_getpwuid_done(struct tevent_req *subreq);
  33
  34 struct tevent_req *winbindd_getpwuid_send(TALLOC_CTX *mem_ctx,
  35                                           struct tevent_context *ev,
  36                                           struct winbindd_cli_state *cli,
  37                                           struct winbindd_request *request)
  38 {
  39         struct tevent_req *req, *subreq;
  40         struct winbindd_getpwuid_state *state;
  41
  42         req = tevent_req_create(mem_ctx, &state,
  43                                 struct winbindd_getpwuid_state);
  44         if (req == NULL) {
  45                 return NULL;
  46         }
  47         state->ev = ev;
  48
  49         DEBUG(3, ("getpwuid %d\n", (int)request->data.uid));
  50
  51         state->xid = (struct unixid) {
  52                 .id = request->data.uid, .type = ID_TYPE_UID };
  53
  54         subreq = wb_xids2sids_send(state, ev, &state->xid, 1);
  55         if (tevent_req_nomem(subreq, req)) {
  56                 return tevent_req_post(req, ev);
  57         }
  58         tevent_req_set_callback(subreq, winbindd_getpwuid_uid2sid_done,
  59                                 req);
  60         return req;
  61 }
  62
  63 static void winbindd_getpwuid_uid2sid_done(struct tevent_req *subreq)
  64 {
  65         struct tevent_req *req = tevent_req_callback_data(
  66                 subreq, struct tevent_req);
  67         struct winbindd_getpwuid_state *state = tevent_req_data(
  68                 req, struct winbindd_getpwuid_state);
  69         NTSTATUS status;
  70
  71         status = wb_xids2sids_recv(subreq, state, &state->sid);
  72         TALLOC_FREE(subreq);
  73         if (tevent_req_nterror(req, status)) {
  74                 return;
  75         }
  76         if (is_null_sid(state->sid)) {
  77                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  78                 return;
  79         }
  80
  81         subreq = wb_getpwsid_send(state, state->ev, state->sid, &state->pw);
  82         if (tevent_req_nomem(subreq, req)) {
  83                 return;
  84         }
  85         tevent_req_set_callback(subreq, winbindd_getpwuid_done, req);
  86 }
  87
  88 static void winbindd_getpwuid_done(struct tevent_req *subreq)
  89 {
  90         struct tevent_req *req = tevent_req_callback_data(
  91                 subreq, struct tevent_req);
  92         NTSTATUS status;
  93
  94         status = wb_getpwsid_recv(subreq);
  95         TALLOC_FREE(subreq);
  96         if (tevent_req_nterror(req, status)) {
  97                 return;
  98         }
  99         tevent_req_done(req);
 100 }
 101
 102 NTSTATUS winbindd_getpwuid_recv(struct tevent_req *req,
 103                                 struct winbindd_response *response)
 104 {
 105         struct winbindd_getpwuid_state *state = tevent_req_data(
 106                 req, struct winbindd_getpwuid_state);
 107         NTSTATUS status;
 108
 109         if (tevent_req_is_nterror(req, &status)) {
 110                 DEBUG(5, ("Could not convert sid %s: %s\n",
 111                           sid_string_dbg(state->sid), nt_errstr(status)));
 112                 return status;
 113         }
 114         response->data.pw = state->pw;
 115         return NT_STATUS_OK;
 116 }