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