source3/libsmb/clisigning.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    SMB Signing Code
   4    Copyright (C) Jeremy Allison 2003.
   5    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2002-2003
   6    Copyright (C) Stefan Metzmacher 2009
   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 "libsmb/libsmb.h"
  24 #include "smb_signing.h"
  25
  26 bool cli_simple_set_signing(struct cli_state *cli,
  27                             const DATA_BLOB user_session_key,
  28                             const DATA_BLOB response)
  29 {
  30         bool ok;
  31
  32         ok = smb_signing_activate(cli->signing_state,
  33                                   user_session_key,
  34                                   response);
  35         if (!ok) {
  36                 return false;
  37         }
  38
  39         cli->readbraw_supported = false;
  40         cli->writebraw_supported = false;
  41
  42         return true;
  43 }
  44
  45 bool cli_temp_set_signing(struct cli_state *cli)
  46 {
  47         return smb_signing_set_bsrspyl(cli->signing_state);
  48 }
  49
  50 void cli_calculate_sign_mac(struct cli_state *cli, char *buf, uint32_t *seqnum)
  51 {
  52         *seqnum = smb_signing_next_seqnum(cli->signing_state, false);
  53         smb_signing_sign_pdu(cli->signing_state, (uint8_t *)buf, *seqnum);
  54 }
  55
  56 bool cli_check_sign_mac(struct cli_state *cli, const char *buf, uint32_t seqnum)
  57 {
  58         bool ok;
  59
  60         ok = smb_signing_check_pdu(cli->signing_state,
  61                                    (const uint8_t *)buf,
  62                                    seqnum);
  63
  64         if (!ok) {
  65                 return false;
  66         }
  67
  68         return true;
  69 }
  70
  71 void cli_set_signing_negotiated(struct cli_state *cli)
  72 {
  73         smb_signing_set_negotiated(cli->signing_state);
  74 }
  75
  76 bool client_is_signing_on(struct cli_state *cli)
  77 {
  78         return smb_signing_is_active(cli->signing_state);
  79 }
  80
  81 bool client_is_signing_allowed(struct cli_state *cli)
  82 {
  83         return smb_signing_is_allowed(cli->signing_state);
  84 }
  85
  86 bool client_is_signing_mandatory(struct cli_state *cli)
  87 {
  88         return smb_signing_is_mandatory(cli->signing_state);
  89 }