source4/winbind/wb_xids2sids.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Convet an unixid struct to a SID
   5
   6    Copyright (C) 2008 Kai Blin
   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 "smbd/service_task.h"
  26
  27 struct xids2sids_state {
  28         struct composite_context *ctx;
  29         struct wbsrv_service *service;
  30         struct id_map *ids;
  31         int count;
  32 };
  33
  34 struct composite_context *wb_xids2sids_send(TALLOC_CTX *mem_ctx,
  35                                             struct wbsrv_service *service,
  36                                             unsigned int count, struct id_map *ids)
  37 {
  38         struct composite_context *result;
  39         struct xids2sids_state *state;
  40         struct id_map **pointer_array;
  41         unsigned int i;
  42
  43         DEBUG(5, ("wb_xids2sids_send called\n"));
  44
  45         result = composite_create(mem_ctx, service->task->event_ctx);
  46         if (!result) return NULL;
  47
  48         state = talloc(mem_ctx, struct xids2sids_state);
  49         if (composite_nomem(state, result)) return result;
  50
  51         state->ctx = result;
  52         result->private_data = state;
  53         state->service = service;
  54         state->count = count;
  55         state->ids = ids;
  56
  57         /* We need to convert between calling conventions here - the
  58          * values are filled in by reference, so we just need to
  59          * provide pointers to them */
  60         pointer_array = talloc_array(state, struct id_map *, count+1);
  61         if (composite_nomem(pointer_array, result)) return result;
  62
  63         for (i=0; i < count; i++) {
  64                 pointer_array[i] = &ids[i];
  65         }
  66         pointer_array[i] = NULL;
  67
  68         state->ctx->status = idmap_xids_to_sids(service->idmap_ctx, mem_ctx,
  69                                                 pointer_array);
  70         if (!composite_is_ok(state->ctx)) return result;
  71
  72         composite_done(state->ctx);
  73         return result;
  74 }
  75
  76 NTSTATUS wb_xids2sids_recv(struct composite_context *ctx,
  77                            struct id_map **ids)
  78 {
  79         NTSTATUS status = composite_wait(ctx);
  80         struct xids2sids_state *state = talloc_get_type(ctx->private_data,
  81                                                         struct xids2sids_state);
  82
  83         DEBUG(5, ("wb_xids2sids_recv called.\n"));
  84
  85         /* We don't have to mess with pointer_array on the way out, as
  86          * the results are filled into the pointers the caller
  87          * supplied */
  88         *ids = state->ids;
  89
  90         talloc_free(ctx);
  91         return status;
  92 }
  93