source3/winbindd/winbindd_domain_info.c

   1 /*
   2  * Unix SMB/CIFS implementation.
   3  * async implementation of WINBINDD_DOMAIN_INFO
   4  * Copyright (C) Volker Lendecke 2018
   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/util/string_wrappers.h"
  23 #include "lib/global_contexts.h"
  24 #include "librpc/gen_ndr/ndr_winbind_c.h"
  25
  26 struct winbindd_domain_info_state {
  27         struct winbindd_domain *domain;
  28         uint32_t in;
  29         uint32_t out;
  30 };
  31
  32 static void winbindd_domain_info_done(struct tevent_req *subreq);
  33
  34 struct tevent_req *winbindd_domain_info_send(
  35         TALLOC_CTX *mem_ctx,
  36         struct tevent_context *ev,
  37         struct winbindd_cli_state *cli,
  38         struct winbindd_request *request)
  39 {
  40         struct tevent_req *req, *subreq;
  41         struct winbindd_domain_info_state *state;
  42
  43         req = tevent_req_create(mem_ctx, &state,
  44                                 struct winbindd_domain_info_state);
  45         if (req == NULL) {
  46                 return NULL;
  47         }
  48
  49         DEBUG(3, ("[%5lu]: domain_info [%s]\n", (unsigned long)cli->pid,
  50                   cli->request->domain_name));
  51
  52         state->domain = find_domain_from_name_noinit(
  53                 cli->request->domain_name);
  54
  55         if (state->domain == NULL) {
  56                 DEBUG(3, ("Did not find domain [%s]\n",
  57                           cli->request->domain_name));
  58                 tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
  59                 return tevent_req_post(req, ev);
  60         }
  61
  62         if (state->domain->initialized) {
  63                 tevent_req_done(req);
  64                 return tevent_req_post(req, ev);
  65         }
  66
  67         /*
  68          * Send a ping down. This implicitly initializes the domain.
  69          */
  70
  71         state->in = cli->pid;
  72         state->out = 0;
  73         subreq = dcerpc_wbint_Ping_send(state,
  74                                         global_event_context(),
  75                                         dom_child_handle(state->domain),
  76                                         state->in,
  77                                         &state->out);
  78         if (tevent_req_nomem(subreq, req)) {
  79                 return tevent_req_post(req, ev);
  80         }
  81         tevent_req_set_callback(subreq, winbindd_domain_info_done, req);
  82
  83         return req;
  84 }
  85
  86 static void winbindd_domain_info_done(struct tevent_req *subreq)
  87 {
  88         struct tevent_req *req = tevent_req_callback_data(
  89                 subreq, struct tevent_req);
  90         struct winbindd_domain_info_state *state = tevent_req_data(
  91                 req, struct winbindd_domain_info_state);
  92         NTSTATUS status, result;
  93
  94         status = dcerpc_wbint_Ping_recv(subreq, state, &result);
  95         TALLOC_FREE(subreq);
  96         if (tevent_req_nterror(req, status)) {
  97                 DBG_NOTICE("dcerpc_wbint_Ping call failed: %s\n",
  98                            nt_errstr(status));
  99                 return;
 100         }
 101
 102         if (tevent_req_nterror(req, result)) {
 103                 DBG_NOTICE("dcerpc_wbint_Ping failed: %s\n",
 104                            nt_errstr(result));
 105                 return;
 106         }
 107
 108         if (!state->domain->initialized) {
 109                 DBG_INFO("dcerpc_wbint_Ping did not initialize domain %s\n",
 110                          state->domain->name);
 111                 tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
 112                 return;
 113         }
 114
 115         tevent_req_done(req);
 116 }
 117
 118 NTSTATUS winbindd_domain_info_recv(struct tevent_req *req,
 119                                    struct winbindd_response *response)
 120 {
 121         struct winbindd_domain_info_state *state = tevent_req_data(
 122                 req, struct winbindd_domain_info_state);
 123         struct winbindd_domain *domain = state->domain;
 124         NTSTATUS status;
 125
 126         if (tevent_req_is_nterror(req, &status)) {
 127                 DBG_NOTICE("winbindd_domain_info failed: %s\n",
 128                            nt_errstr(status));
 129                 return status;
 130         }
 131
 132         fstrcpy(response->data.domain_info.name, domain->name);
 133         fstrcpy(response->data.domain_info.alt_name, domain->alt_name);
 134         sid_to_fstring(response->data.domain_info.sid, &domain->sid);
 135
 136         response->data.domain_info.native_mode = domain->native_mode;
 137         response->data.domain_info.active_directory = domain->active_directory;
 138         response->data.domain_info.primary = domain->primary;
 139
 140         return NT_STATUS_OK;
 141 }