auth/auth_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Authentication utility functions
   4
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2017
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22 #include "librpc/ndr/libndr.h"
  23 #include "librpc/gen_ndr/ndr_auth.h"
  24 #include "auth_util.h"
  25
  26 struct auth_session_info *copy_session_info(TALLOC_CTX *mem_ctx,
  27                                             const struct auth_session_info *src)
  28 {
  29         TALLOC_CTX *frame = talloc_stackframe();
  30         struct auth_session_info *dst;
  31         DATA_BLOB blob;
  32         enum ndr_err_code ndr_err;
  33
  34         ndr_err = ndr_push_struct_blob(
  35                 &blob,
  36                 frame,
  37                 src,
  38                 (ndr_push_flags_fn_t)ndr_push_auth_session_info);
  39         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  40                 DBG_ERR("copy_session_info(): ndr_push_auth_session_info "
  41                         "failed: %s\n",
  42                         ndr_errstr(ndr_err));
  43                 TALLOC_FREE(frame);
  44                 return NULL;
  45         }
  46
  47         dst = talloc_zero(mem_ctx, struct auth_session_info);
  48         if (dst == NULL) {
  49                 DBG_ERR("talloc failed\n");
  50                 TALLOC_FREE(frame);
  51                 return NULL;
  52         }
  53
  54         ndr_err = ndr_pull_struct_blob(
  55                 &blob,
  56                 dst,
  57                 dst,
  58                 (ndr_pull_flags_fn_t)ndr_pull_auth_session_info);
  59
  60         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  61                 DBG_ERR("copy_session_info(): ndr_pull_auth_session_info "
  62                         "failed: %s\n",
  63                         ndr_errstr(ndr_err));
  64                 TALLOC_FREE(dst);
  65                 TALLOC_FREE(frame);
  66                 return NULL;
  67         }
  68
  69         TALLOC_FREE(frame);
  70         return dst;
  71 }