s4:rpc_server: use helper variables to access 'struct dcesrv_auth' in dcerpc_server.c
[samba.git] / 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         struct auth_session_info *dst;
30         DATA_BLOB blob;
31         enum ndr_err_code ndr_err;
32
33         ndr_err = ndr_push_struct_blob(
34                 &blob,
35                 talloc_tos(),
36                 src,
37                 (ndr_push_flags_fn_t)ndr_push_auth_session_info);
38         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
39                 DBG_ERR("copy_session_info(): ndr_push_auth_session_info "
40                         "failed: %s\n",
41                         ndr_errstr(ndr_err));
42                 return NULL;
43         }
44
45         dst = talloc(mem_ctx, struct auth_session_info);
46         if (dst == NULL) {
47                 DBG_ERR("talloc failed\n");
48                 TALLOC_FREE(blob.data);
49                 return NULL;
50         }
51
52         ndr_err = ndr_pull_struct_blob(
53                 &blob,
54                 dst,
55                 dst,
56                 (ndr_pull_flags_fn_t)ndr_pull_auth_session_info);
57         TALLOC_FREE(blob.data);
58
59         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
60                 DBG_ERR("copy_session_info(): ndr_pull_auth_session_info "
61                         "failed: %s\n",
62                         ndr_errstr(ndr_err));
63                 TALLOC_FREE(dst);
64                 return NULL;
65         }
66
67         return dst;
68 }