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 "../libcli/smb/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         return true;
  40 }
  41
  42 void cli_calculate_sign_mac(struct cli_state *cli, char *buf, uint32_t *seqnum)
  43 {
  44         *seqnum = smb_signing_next_seqnum(cli->signing_state, false);
  45         smb_signing_sign_pdu(cli->signing_state, (uint8_t *)buf, *seqnum);
  46 }
  47
  48 bool cli_check_sign_mac(struct cli_state *cli, const char *buf, uint32_t seqnum)
  49 {
  50         bool ok;
  51
  52         ok = smb_signing_check_pdu(cli->signing_state,
  53                                    (const uint8_t *)buf,
  54                                    seqnum);
  55
  56         if (!ok) {
  57                 return false;
  58         }
  59
  60         return true;
  61 }
  62
  63 bool cli_set_signing_negotiated(struct cli_state *cli,
  64                                 bool allowed, bool mandatory)
  65 {
  66         return smb_signing_set_negotiated(cli->signing_state,
  67                                           allowed, mandatory);
  68 }
  69
  70 bool client_is_signing_on(struct cli_state *cli)
  71 {
  72         return smb_signing_is_active(cli->signing_state);
  73 }
  74
  75 bool client_is_signing_allowed(struct cli_state *cli)
  76 {
  77         return smb_signing_is_allowed(cli->signing_state);
  78 }
  79
  80 bool client_is_signing_mandatory(struct cli_state *cli)
  81 {
  82         return smb_signing_is_mandatory(cli->signing_state);
  83 }