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         DBG_NOTICE("[%s (%u)] getpwuid %d\n",
  50                    cli->client_name,
  51                    (unsigned int)cli->pid,
  52                    (int)request->data.uid);
  53
  54         state->xid = (struct unixid) {
  55                 .id = request->data.uid, .type = ID_TYPE_UID };
  56
  57         subreq = wb_xids2sids_send(state, ev, &state->xid, 1);
  58         if (tevent_req_nomem(subreq, req)) {
  59                 return tevent_req_post(req, ev);
  60         }
  61         tevent_req_set_callback(subreq, winbindd_getpwuid_uid2sid_done,
  62                                 req);
  63         return req;
  64 }
  65
  66 static void winbindd_getpwuid_uid2sid_done(struct tevent_req *subreq)
  67 {
  68         struct tevent_req *req = tevent_req_callback_data(
  69                 subreq, struct tevent_req);
  70         struct winbindd_getpwuid_state *state = tevent_req_data(
  71                 req, struct winbindd_getpwuid_state);
  72         NTSTATUS status;
  73
  74         status = wb_xids2sids_recv(subreq, state, &state->sid);
  75         TALLOC_FREE(subreq);
  76         if (tevent_req_nterror(req, status)) {
  77                 return;
  78         }
  79         if (is_null_sid(state->sid)) {
  80                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  81                 return;
  82         }
  83
  84         subreq = wb_getpwsid_send(state, state->ev, state->sid, &state->pw);
  85         if (tevent_req_nomem(subreq, req)) {
  86                 return;
  87         }
  88         tevent_req_set_callback(subreq, winbindd_getpwuid_done, req);
  89 }
  90
  91 static void winbindd_getpwuid_done(struct tevent_req *subreq)
  92 {
  93         struct tevent_req *req = tevent_req_callback_data(
  94                 subreq, struct tevent_req);
  95         NTSTATUS status;
  96
  97         status = wb_getpwsid_recv(subreq);
  98         TALLOC_FREE(subreq);
  99         if (tevent_req_nterror(req, status)) {
 100                 return;
 101         }
 102         tevent_req_done(req);
 103 }
 104
 105 NTSTATUS winbindd_getpwuid_recv(struct tevent_req *req,
 106                                 struct winbindd_response *response)
 107 {
 108         struct winbindd_getpwuid_state *state = tevent_req_data(
 109                 req, struct winbindd_getpwuid_state);
 110         NTSTATUS status;
 111
 112         if (tevent_req_is_nterror(req, &status)) {
 113                 struct dom_sid_buf buf;
 114                 DEBUG(5, ("Could not convert sid %s: %s\n",
 115                           dom_sid_str_buf(state->sid, &buf),
 116                           nt_errstr(status)));
 117                 return status;
 118         }
 119         response->data.pw = state->pw;
 120         return NT_STATUS_OK;
 121 }