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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"
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ssize_t smb2_lease_pull ( const uint8_t * buf , size_t len ,
struct smb2_lease * lease )
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{
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 ) ;
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lease - > lease_version = version ;
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switch ( version ) {
case 1 :
ZERO_STRUCT ( lease - > parent_lease_key ) ;
lease - > lease_epoch = 0 ;
break ;
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case 2 :
memcpy ( & lease - > parent_lease_key , buf + 32 , 16 ) ;
lease - > lease_epoch = SVAL ( buf , 48 ) ;
break ;
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}
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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bool smb2_lease_key_equal ( const struct smb2_lease_key * k1 ,
const struct smb2_lease_key * k2 )
{
return ( ( k1 - > data [ 0 ] = = k2 - > data [ 0 ] ) & & ( k1 - > data [ 1 ] = = k2 - > data [ 1 ] ) ) ;
}
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bool smb2_lease_equal ( const struct GUID * g1 ,
const struct smb2_lease_key * k1 ,
const struct GUID * g2 ,
const struct smb2_lease_key * k2 )
{
return GUID_equal ( g1 , g2 ) & & smb2_lease_key_equal ( k1 , k2 ) ;
}