source3/winbindd/winbindd_pam_auth_crap.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    async implementation of WINBINDD_PAM_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_auth_crap_state {
  24         struct winbindd_response *response;
  25 };
  26
  27 static void winbindd_pam_auth_crap_done(struct tevent_req *subreq);
  28
  29 struct tevent_req *winbindd_pam_auth_crap_send(
  30         TALLOC_CTX *mem_ctx,
  31         struct tevent_context *ev,
  32         struct winbindd_cli_state *cli,
  33         struct winbindd_request *request)
  34 {
  35         struct tevent_req *req, *subreq;
  36         struct winbindd_pam_auth_crap_state *state;
  37         struct winbindd_domain *domain;
  38         const char *domain_name;
  39
  40         req = tevent_req_create(mem_ctx, &state,
  41                                 struct winbindd_pam_auth_crap_state);
  42         if (req == NULL) {
  43                 return NULL;
  44         }
  45
  46         /* Ensure null termination */
  47         request->data.auth_crap.user[
  48                 sizeof(request->data.auth_crap.user)-1] = '\0';
  49         request->data.auth_crap.domain[
  50                 sizeof(request->data.auth_crap.domain)-1] = '\0';
  51
  52         DEBUG(3, ("[%5lu]: pam auth crap domain: [%s] user: %s\n",
  53                   (unsigned long)cli->pid,
  54                   request->data.auth_crap.domain,
  55                   request->data.auth_crap.user));
  56
  57         if (!check_request_flags(request->flags)) {
  58                 tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
  59                 return tevent_req_post(req, ev);
  60         }
  61
  62         domain_name = NULL;
  63
  64         if (request->data.auth_crap.domain[0] != '\0') {
  65                 domain_name = request->data.auth_crap.domain;
  66         } else if (lp_winbind_use_default_domain()) {
  67                 domain_name = lp_workgroup();
  68         }
  69
  70         domain = NULL;
  71
  72         if (domain_name != NULL) {
  73                 domain = find_auth_domain(request->flags, domain_name);
  74         }
  75
  76         if (domain == NULL) {
  77                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
  78                 return tevent_req_post(req, ev);
  79         }
  80
  81         subreq = wb_domain_request_send(state, winbind_event_context(), domain,
  82                                         request);
  83         if (tevent_req_nomem(subreq, req)) {
  84                 return tevent_req_post(req, ev);
  85         }
  86         tevent_req_set_callback(subreq, winbindd_pam_auth_crap_done, req);
  87         return req;
  88 }
  89
  90 static void winbindd_pam_auth_crap_done(struct tevent_req *subreq)
  91 {
  92         struct tevent_req *req = tevent_req_callback_data(
  93                 subreq, struct tevent_req);
  94         struct winbindd_pam_auth_crap_state *state = tevent_req_data(
  95                 req, struct winbindd_pam_auth_crap_state);
  96         int res, err;
  97
  98         res = wb_domain_request_recv(subreq, state, &state->response, &err);
  99         TALLOC_FREE(subreq);
 100         if (res == -1) {
 101                 tevent_req_nterror(req, map_nt_error_from_unix(err));
 102                 return;
 103         }
 104         tevent_req_done(req);
 105 }
 106
 107 NTSTATUS winbindd_pam_auth_crap_recv(struct tevent_req *req,
 108                                      struct winbindd_response *response)
 109 {
 110         struct winbindd_pam_auth_crap_state *state = tevent_req_data(
 111                 req, struct winbindd_pam_auth_crap_state);
 112         NTSTATUS status;
 113
 114         if (tevent_req_is_nterror(req, &status)) {
 115                 set_auth_errors(response, status);
 116                 return status;
 117         }
 118         *response = *state->response;
 119         response->result = WINBINDD_PENDING;
 120         state->response = talloc_move(response, &state->response);
 121         return NT_STATUS(response->data.auth.nt_status);
 122 }