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/*
Unix SMB/CIFS implementation.
SMB2 Lease context handling
Copyright (C) Stefan Metzmacher 2012
Copyright (C) Volker Lendecke 2013
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "../libcli/smb/smb_common.h"
ssize_t smb2_lease_pull(uint8_t *buf, size_t len, struct smb2_lease *lease)
{
int version;
switch (len) {
case 32:
version = 1;
break;
case 52:
version = 2;
break;
default:
return -1;
}
memcpy(&lease->lease_key, buf, 16);
lease->lease_state = IVAL(buf, 16);
lease->lease_flags = IVAL(buf, 20);
lease->lease_duration = BVAL(buf, 24);
switch (version) {
case 1:
memcpy(&lease->parent_lease_key, buf+32, 16);
lease->lease_epoch = SVAL(buf, 48);
break;
case 2:
ZERO_STRUCT(lease->parent_lease_key);
lease->lease_epoch = 0;
break;
}
return len;
}
bool smb2_lease_push(const struct smb2_lease *lease, uint8_t *buf, size_t len)
{
int version;
switch (len) {
case 32:
version = 1;
break;
case 52:
version = 2;
break;
default:
return false;
}
memcpy(&buf[0], &lease->lease_key, 16);
SIVAL(buf, 16, lease->lease_state);
SIVAL(buf, 20, lease->lease_flags);
SBVAL(buf, 24, lease->lease_duration);
if (version == 2) {
memcpy(&buf[32], &lease->parent_lease_key, 16);
SIVAL(buf, 48, lease->lease_epoch);
}
return true;
}
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