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         D_NOTICE("[%s (%u)] Winbind external command GETPWUID start.\n"
  50                  "Search UID %u.\n",
  51                  cli->client_name,
  52                  (unsigned int)cli->pid,
  53                  (int)request->data.uid);
  54
  55         state->xid = (struct unixid) {
  56                 .id = request->data.uid, .type = ID_TYPE_UID };
  57
  58         subreq = wb_xids2sids_send(state, ev, &state->xid, 1);
  59         if (tevent_req_nomem(subreq, req)) {
  60                 return tevent_req_post(req, ev);
  61         }
  62         tevent_req_set_callback(subreq, winbindd_getpwuid_uid2sid_done,
  63                                 req);
  64         return req;
  65 }
  66
  67 static void winbindd_getpwuid_uid2sid_done(struct tevent_req *subreq)
  68 {
  69         struct tevent_req *req = tevent_req_callback_data(
  70                 subreq, struct tevent_req);
  71         struct winbindd_getpwuid_state *state = tevent_req_data(
  72                 req, struct winbindd_getpwuid_state);
  73         NTSTATUS status;
  74
  75         status = wb_xids2sids_recv(subreq, state, &state->sid);
  76         TALLOC_FREE(subreq);
  77         if (tevent_req_nterror(req, status)) {
  78                 D_WARNING("Failed with %s.\n", nt_errstr(status));
  79                 return;
  80         }
  81         if (is_null_sid(state->sid)) {
  82                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  83                 D_WARNING("Failed with NT_STATUS_NO_SUCH_USER.\n");
  84                 return;
  85         }
  86
  87         subreq = wb_getpwsid_send(state, state->ev, state->sid, &state->pw);
  88         if (tevent_req_nomem(subreq, req)) {
  89                 return;
  90         }
  91         tevent_req_set_callback(subreq, winbindd_getpwuid_done, req);
  92 }
  93
  94 static void winbindd_getpwuid_done(struct tevent_req *subreq)
  95 {
  96         struct tevent_req *req = tevent_req_callback_data(
  97                 subreq, struct tevent_req);
  98         NTSTATUS status;
  99
 100         status = wb_getpwsid_recv(subreq);
 101         TALLOC_FREE(subreq);
 102         if (tevent_req_nterror(req, status)) {
 103                 D_WARNING("Failed with %s.\n", nt_errstr(status));
 104                 return;
 105         }
 106         tevent_req_done(req);
 107 }
 108
 109 NTSTATUS winbindd_getpwuid_recv(struct tevent_req *req,
 110                                 struct winbindd_response *response)
 111 {
 112         struct winbindd_getpwuid_state *state = tevent_req_data(
 113                 req, struct winbindd_getpwuid_state);
 114         NTSTATUS status;
 115
 116         if (tevent_req_is_nterror(req, &status)) {
 117                 struct dom_sid_buf buf;
 118                 D_WARNING("Could not convert sid %s: %s\n",
 119                           dom_sid_str_buf(state->sid, &buf),
 120                           nt_errstr(status));
 121                 return status;
 122         }
 123         response->data.pw = state->pw;
 124         D_NOTICE("Winbind external command GETPWUID end.\n"
 125                  "(name:passwd:uid:gid:gecos:dir:shell)\n"
 126                  "%s:%s:%u:%u:%s:%s:%s\n",
 127                  state->pw.pw_name,
 128                  state->pw.pw_passwd,
 129                  (unsigned int)state->pw.pw_uid,
 130                  (unsigned int)state->pw.pw_gid,
 131                  state->pw.pw_gecos,
 132                  state->pw.pw_dir,
 133                  state->pw.pw_shell
 134                  );
 135
 136         return NT_STATUS_OK;
 137 }