source4/winbind/wb_dom_info.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Get a struct wb_dom_info for a domain using DNS, netbios, possibly cldap
   5    etc.
   6
   7    Copyright (C) Volker Lendecke 2005
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "libcli/composite/composite.h"
  25 #include "libcli/resolve/resolve.h"
  26 #include "libcli/security/security.h"
  27 #include "winbind/wb_server.h"
  28 #include "smbd/service_task.h"
  29 #include "librpc/gen_ndr/ndr_irpc.h"
  30 #include "librpc/gen_ndr/samr.h"
  31 #include "lib/messaging/irpc.h"
  32 #include "libcli/finddcs.h"
  33
  34 struct get_dom_info_state {
  35         struct composite_context *ctx;
  36         struct wb_dom_info *info;
  37 };
  38
  39 static void get_dom_info_recv_addrs(struct composite_context *ctx);
  40
  41 struct composite_context *wb_get_dom_info_send(TALLOC_CTX *mem_ctx,
  42                                                struct wbsrv_service *service,
  43                                                const char *domain_name,
  44                                                const struct dom_sid *sid)
  45 {
  46         struct composite_context *result, *ctx;
  47         struct get_dom_info_state *state;
  48         struct dom_sid *dup_sid;
  49         result = composite_create(mem_ctx, service->task->event_ctx);
  50         if (result == NULL) goto failed;
  51
  52         state = talloc(result, struct get_dom_info_state);
  53         if (state == NULL) goto failed;
  54         state->ctx = result;
  55         result->private_data = state;
  56
  57         state->info = talloc_zero(state, struct wb_dom_info);
  58         if (state->info == NULL) goto failed;
  59
  60         dup_sid = dom_sid_dup(state, sid);
  61         if (dup_sid == NULL) goto failed;
  62
  63         ctx = finddcs_send(mem_ctx, domain_name, NBT_NAME_LOGON,
  64                            dup_sid, lp_name_resolve_order(), service->task->event_ctx,
  65                            service->task->msg_ctx);
  66         if (ctx == NULL) goto failed;
  67
  68         composite_continue(state->ctx, ctx, get_dom_info_recv_addrs, state);
  69         return result;
  70
  71  failed:
  72         talloc_free(result);
  73         return NULL;
  74 }
  75
  76 static void get_dom_info_recv_addrs(struct composite_context *ctx)
  77 {
  78         struct get_dom_info_state *state =
  79                 talloc_get_type(ctx->async.private_data,
  80                                 struct get_dom_info_state);
  81
  82         state->ctx->status = finddcs_recv(ctx, state->info,
  83                                           &state->info->num_dcs,
  84                                           &state->info->dcs);
  85         if (!composite_is_ok(state->ctx)) return;
  86
  87         composite_done(state->ctx);
  88 }
  89
  90 NTSTATUS wb_get_dom_info_recv(struct composite_context *ctx,
  91                               TALLOC_CTX *mem_ctx,
  92                               struct wb_dom_info **result)
  93 {
  94         NTSTATUS status = composite_wait(ctx);
  95         if (NT_STATUS_IS_OK(status)) {
  96                 struct get_dom_info_state *state =
  97                         talloc_get_type(ctx->private_data,
  98                                         struct get_dom_info_state);
  99                 *result = talloc_steal(mem_ctx, state->info);
 100         }
 101         talloc_free(ctx);
 102         return status;
 103 }
 104
 105 NTSTATUS wb_get_dom_info(TALLOC_CTX *mem_ctx,
 106                          struct wbsrv_service *service,
 107                          const char *domain_name,
 108                          const struct dom_sid *sid,
 109                          struct wb_dom_info **result)
 110 {
 111         struct composite_context *ctx =
 112                 wb_get_dom_info_send(mem_ctx, service, domain_name, sid);
 113         return wb_get_dom_info_recv(ctx, mem_ctx, result);
 114 }