static int _create_volume( const char * dev,const char * fs,const char * type,const char * pass,size_t pass_size,const char * rng )
{
size_t len ;
int status ;
string_t m = StringVoid ;
const char * device_mapper ;
const char * mapper ;
if ( zuluCryptPathIsNotValid( dev ) ){
return 1 ;
}
m = String( crypt_get_dir() ) ;
len = StringLength( m ) ;
StringAppend( m,"/zuluCrypt-" ) ;
device_mapper = StringAppendInt( m,syscall( SYS_gettid ) ) ;
mapper = device_mapper + len + 1 ;
if( StringsAreEqual( type,"luks" ) ){
if( StringsAreNotEqual( rng,"/dev/random" ) ){
if( StringsAreNotEqual( rng,"/dev/urandom" ) ){
return zuluExit( 2,m ) ;
}
}
if( zuluCryptCreateLuks( dev,pass,pass_size,rng ) != 0 ){
return zuluExit( 3,m ) ;
}
if( zuluCryptOpenLuks( dev,mapper,"rw",pass,pass_size ) != 0 ){
return zuluExit( 3,m ) ;
}
}else if( StringsAreEqual( type,"plain") ){
if( zuluCryptOpenPlain( dev,mapper,"rw",pass,pass_size ) != 0 ){
return zuluExit( 3,m ) ;
}
}else{
return zuluExit( 2,m ) ;
}
status = zuluCryptCreateFileSystemInAVolume( fs,device_mapper ) ;
/*
* zuluCryptCloseMapper() is defined in close_mapper.c
*/
zuluCryptCloseMapper( device_mapper );
if( status == 0 ){
return zuluExit( 0,m ) ;
}else{
return zuluExit( 3,m ) ;
}
}
static int _create_file_system( const char * device,const char * fs,int key_source,
const char * key,size_t key_len,int volume_type )
{
string_t m = StringVoid ;
int r ;
const char * device_mapper ;
const char * mapper ;
size_t len ;
m = String( crypt_get_dir() ) ;
len = StringLength( m ) ;
StringAppend( m,"/zuluCrypt-" ) ;
device_mapper = StringAppendInt( m,syscall( SYS_gettid ) ) ;
mapper = device_mapper + len + 1 ;
/*
* zuluCryptOpenTcrypt() is defined in open_tcrypt.c
*/
if( zuluCryptOpenTcrypt( device,mapper,key,key_len,key_source,volume_type,NULL,0,0,NULL ) == 0 ){
/*
* zuluCryptCreateFileSystemInAVolume() is defined in create_volume.c
*/
if( zuluCryptCreateFileSystemInAVolume( fs,device_mapper ) == 0 ){
r = 0 ;
}else{
r = 3 ;
}
/*
* zuluCryptCloseMapper() is defined in close_mapper.c
*/
zuluCryptCloseMapper( device_mapper ) ;
}else{
r = 3 ;
}
StringDelete( &m ) ;
return r ;
}
