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
  24 bool cli_simple_set_signing(struct cli_state *cli,
  25                             const DATA_BLOB user_session_key,
  26                             const DATA_BLOB response)
  27 {
  28         bool ok;
  29
  30         ok = smb_signing_activate(cli->signing_state,
  31                                   user_session_key,
  32                                   response);
  33         if (!ok) {
  34                 return false;
  35         }
  36
  37         cli->readbraw_supported = false;
  38         cli->writebraw_supported = false;
  39
  40         return true;
  41 }
  42
  43 bool cli_temp_set_signing(struct cli_state *cli)
  44 {
  45         return smb_signing_set_bsrspyl(cli->signing_state);
  46 }
  47
  48 void cli_calculate_sign_mac(struct cli_state *cli, char *buf, uint32_t *seqnum)
  49 {
  50         *seqnum = smb_signing_next_seqnum(cli->signing_state, false);
  51         smb_signing_sign_pdu(cli->signing_state, (uint8_t *)buf, *seqnum);
  52 }
  53
  54 bool cli_check_sign_mac(struct cli_state *cli, const char *buf, uint32_t seqnum)
  55 {
  56         bool ok;
  57
  58         ok = smb_signing_check_pdu(cli->signing_state,
  59                                    (const uint8_t *)buf,
  60                                    seqnum);
  61
  62         if (!ok) {
  63                 return false;
  64         }
  65
  66         return true;
  67 }
  68
  69 void cli_set_signing_negotiated(struct cli_state *cli)
  70 {
  71         smb_signing_set_negotiated(cli->signing_state);
  72 }
  73
  74 bool client_is_signing_on(struct cli_state *cli)
  75 {
  76         return smb_signing_is_active(cli->signing_state);
  77 }
  78
  79 bool client_is_signing_allowed(struct cli_state *cli)
  80 {
  81         return smb_signing_is_allowed(cli->signing_state);
  82 }
  83
  84 bool client_is_signing_mandatory(struct cli_state *cli)
  85 {
  86         return smb_signing_is_mandatory(cli->signing_state);
  87 }