source3/winbindd/winbindd_pam_chng_pswd_auth_crap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP
   4    Copyright (C) Volker Lendecke 2010
   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 "lib/global_contexts.h"
  23
  24 struct winbindd_pam_chng_pswd_auth_crap_state {
  25         struct winbindd_request *request;
  26         struct winbindd_response *response;
  27 };
  28
  29 static void winbindd_pam_chng_pswd_auth_crap_done(struct tevent_req *subreq);
  30
  31 struct tevent_req *winbindd_pam_chng_pswd_auth_crap_send(
  32         TALLOC_CTX *mem_ctx,
  33         struct tevent_context *ev,
  34         struct winbindd_cli_state *cli,
  35         struct winbindd_request *request)
  36 {
  37         struct tevent_req *req, *subreq;
  38         struct winbindd_pam_chng_pswd_auth_crap_state *state;
  39         struct winbindd_domain *domain;
  40         const char *domain_name;
  41
  42         req = tevent_req_create(mem_ctx, &state,
  43                                 struct winbindd_pam_chng_pswd_auth_crap_state);
  44         if (req == NULL) {
  45                 return NULL;
  46         }
  47         state->request = request;
  48
  49         /* Ensure null termination */
  50         request->data.chng_pswd_auth_crap.user[
  51                 sizeof(request->data.chng_pswd_auth_crap.user)-1]='\0';
  52         request->data.chng_pswd_auth_crap.domain[
  53                 sizeof(request->data.chng_pswd_auth_crap.domain)-1]=0;
  54
  55         DEBUG(3, ("[%5lu]: pam change pswd auth crap domain: %s user: %s\n",
  56                   (unsigned long)cli->pid,
  57                   request->data.chng_pswd_auth_crap.domain,
  58                   request->data.chng_pswd_auth_crap.user));
  59
  60         domain_name = NULL;
  61         if (*state->request->data.chng_pswd_auth_crap.domain != '\0') {
  62                 domain_name = state->request->data.chng_pswd_auth_crap.domain;
  63         } else if (lp_winbind_use_default_domain()) {
  64                 domain_name = lp_workgroup();
  65         }
  66
  67         domain = NULL;
  68         if (domain_name != NULL) {
  69                 domain = find_domain_from_name(domain_name);
  70         }
  71
  72         if (domain == NULL) {
  73                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  74                 return tevent_req_post(req, ev);
  75         }
  76
  77         subreq = wb_domain_request_send(state, global_event_context(),
  78                                         domain, request);
  79         if (tevent_req_nomem(subreq, req)) {
  80                 return tevent_req_post(req, ev);
  81         }
  82         tevent_req_set_callback(subreq, winbindd_pam_chng_pswd_auth_crap_done,
  83                                 req);
  84         return req;
  85 }
  86
  87 static void winbindd_pam_chng_pswd_auth_crap_done(struct tevent_req *subreq)
  88 {
  89         struct tevent_req *req = tevent_req_callback_data(
  90                 subreq, struct tevent_req);
  91         struct winbindd_pam_chng_pswd_auth_crap_state *state = tevent_req_data(
  92                 req, struct winbindd_pam_chng_pswd_auth_crap_state);
  93         int res, err;
  94
  95         res = wb_domain_request_recv(subreq, state, &state->response, &err);
  96         TALLOC_FREE(subreq);
  97         if (res == -1) {
  98                 tevent_req_nterror(req, map_nt_error_from_unix(err));
  99                 return;
 100         }
 101         tevent_req_done(req);
 102 }
 103
 104 NTSTATUS winbindd_pam_chng_pswd_auth_crap_recv(
 105         struct tevent_req *req,
 106         struct winbindd_response *response)
 107 {
 108         struct winbindd_pam_chng_pswd_auth_crap_state *state = tevent_req_data(
 109                 req, struct winbindd_pam_chng_pswd_auth_crap_state);
 110         NTSTATUS status;
 111
 112         if (tevent_req_is_nterror(req, &status)) {
 113                 set_auth_errors(response, status);
 114                 return status;
 115         }
 116         *response = *state->response;
 117         response->result = WINBINDD_PENDING;
 118         state->response = talloc_move(response, &state->response);
 119
 120         return NT_STATUS(response->data.auth.nt_status);
 121 }