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