source4/winbind/wb_cmd_lookupsid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Command backend for wbinfo -s
   5
   6    Copyright (C) Volker Lendecke 2005
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "libcli/composite/composite.h"
  24 #include "winbind/wb_server.h"
  25 #include "winbind/wb_helper.h"
  26 #include "smbd/service_task.h"
  27 #include "libcli/security/security.h"
  28
  29 struct cmd_lookupsid_state {
  30         struct composite_context *ctx;
  31         const struct dom_sid *sid;
  32         struct wb_sid_object *result;
  33 };
  34
  35 static void lookupsid_recv_domain(struct composite_context *ctx);
  36 static void lookupsid_recv_names(struct composite_context *ctx);
  37
  38 struct composite_context *wb_cmd_lookupsid_send(TALLOC_CTX *mem_ctx,
  39                                                 struct wbsrv_service *service,
  40                                                 const struct dom_sid *sid)
  41 {
  42         struct composite_context *result, *ctx;
  43         struct cmd_lookupsid_state *state;
  44
  45         DEBUG(5, ("wb_cmd_lookupsid_send called\n"));
  46         result = composite_create(mem_ctx, service->task->event_ctx);
  47         if (result == NULL) goto failed;
  48
  49         state = talloc(result, struct cmd_lookupsid_state);
  50         if (state == NULL) goto failed;
  51         state->ctx = result;
  52         result->private_data = state;
  53
  54         state->sid = dom_sid_dup(state, sid);
  55         if (state->sid == NULL) goto failed;
  56
  57         ctx = wb_sid2domain_send(state, service, service->primary_sid);
  58         if (ctx == NULL) goto failed;
  59
  60         ctx->async.fn = lookupsid_recv_domain;
  61         ctx->async.private_data = state;
  62         return result;
  63
  64  failed:
  65         talloc_free(result);
  66         return NULL;
  67 }
  68
  69 static void lookupsid_recv_domain(struct composite_context *ctx)
  70 {
  71         struct cmd_lookupsid_state *state =
  72                 talloc_get_type(ctx->async.private_data,
  73                                 struct cmd_lookupsid_state);
  74         struct wbsrv_domain *domain;
  75
  76         state->ctx->status = wb_sid2domain_recv(ctx, &domain);
  77         if (!composite_is_ok(state->ctx)) return;
  78
  79         ctx = wb_lsa_lookupsids_send(state, domain->libnet_ctx->lsa.pipe,
  80                                      &domain->libnet_ctx->lsa.handle, 1, &state->sid);
  81         composite_continue(state->ctx, ctx, lookupsid_recv_names, state);
  82 }
  83
  84 static void lookupsid_recv_names(struct composite_context *ctx)
  85 {
  86         struct cmd_lookupsid_state *state =
  87                 talloc_get_type(ctx->async.private_data,
  88                                 struct cmd_lookupsid_state);
  89         struct wb_sid_object **names;
  90
  91         state->ctx->status = wb_lsa_lookupsids_recv(ctx, state, &names);
  92         if (!composite_is_ok(state->ctx)) return;
  93
  94         state->result = names[0];
  95         composite_done(state->ctx);
  96 }
  97
  98 NTSTATUS wb_cmd_lookupsid_recv(struct composite_context *c,
  99                                TALLOC_CTX *mem_ctx,
 100                                struct wb_sid_object **sid)
 101 {
 102         struct cmd_lookupsid_state *state =
 103                 talloc_get_type(c->private_data, struct cmd_lookupsid_state);
 104         NTSTATUS status = composite_wait(c);
 105         if (NT_STATUS_IS_OK(status)) {
 106                 *sid = talloc_steal(mem_ctx, state->result);
 107         }
 108         talloc_free(state);
 109         return status;
 110 }
 111
 112 NTSTATUS wb_cmd_lookupsid(TALLOC_CTX *mem_ctx, struct wbsrv_service *service,
 113                           const struct dom_sid *sid,
 114                           struct wb_sid_object **name)
 115 {
 116         struct composite_context *c =
 117                 wb_cmd_lookupsid_send(mem_ctx, service, sid);
 118         return wb_cmd_lookupsid_recv(c, mem_ctx, name);
 119 }