stringList_t zuluCryptOpenedVolumesList( uid_t uid )
{
const char * e ;
const char * c ;
const char * d ;
const char * t ;
char * f ;
char * g ;
StringListIterator it ;
StringListIterator end ;
ssize_t k ;
string_t q ;
string_t z ;
string_t j ;
stringList_t stx ;
stringList_t list = StringListVoid ;
stringList_t stl = zuluCryptGetMoutedList() ;
if( uid ) {
;
}
/*
* zuluCryptMapperPrefix() is defined in create_mapper_name.c
*/
j = String_1( zuluCryptMapperPrefix(),"/zuluCrypt-",NULL ) ;
/*
* t will probably contain "/dev/mapper/zuluCrypt-"
*/
t = StringContent( j ) ;
StringListGetIterators( stl,&it,&end ) ;
while( it != end ) {
c = StringContent( *it ) ;
it++ ;
if( StringPrefixNotEqual( c,t ) ) {
/*
* we only care about zuluCrypt volumes and these volumes that we care about starts with
* "/dev/mapper/zuluCrypt-"
*/
continue ;
}
if( StringHasComponent( c,"/run/media/public/" ) ) {
/*
* dont show mirror images due to bind mounts
*/
continue ;
}
stx = StringListSplit( c,' ' ) ;
e = StringListContentAtFirstPlace( stx ) ;
k = StringHasComponent_1( e,"-UUID-" ) ;
if( k != -1 ) {
q = StringListStringAtFirstPlace( stx ) ;
/*
* zuluCryptDecodeMountEntry() is defined in mount_volume.c
*/
d = zuluCryptDecodeMountEntry( StringListStringAtSecondPlace( stx ) ) ;
/*
* zuluCryptGetVolumeTypeFromMapperPath() is defined in status.c
*/
f = zuluCryptGetVolumeTypeFromMapperPath( StringContent( q ) ) ;
e = StringSubChar( q,StringLastIndexOfChar( q,'-' ),'\0' ) + k + 6 ;
z = String_1( "UUID=\"",e,"\"\t",d,"\t",f,NULL ) ;
list = StringListAppendString_1( list,&z ) ;
StringFree( f ) ;
} else {
/*
* zuluCryptVolumeDeviceName() is defined in status.c
*/
g = zuluCryptVolumeDeviceName( e ) ;
if( g != NULL ) {
d = zuluCryptDecodeMountEntry( StringListStringAtSecondPlace( stx ) ) ;
/*
* zuluCryptGetVolumeTypeFromMapperPath() is defined in status.c
*/
f = zuluCryptGetVolumeTypeFromMapperPath( StringListContentAtFirstPlace( stx ) ) ;
z = String_1( g,"\t",d,"\t",f,NULL ) ;
list = StringListAppendString_1( list,&z ) ;
StringFree( f ) ;
StringFree( g ) ;
}
}
StringListDelete( &stx ) ;
}
StringListDelete( &stl ) ;
StringDelete( &j ) ;
return list ;
}
int zuluCryptOpenVolume( const char * dev,const char * mapper,
const char * m_point,uid_t id,unsigned long m_opts,
const char * fs_opts,const char * pass,size_t pass_size )
{
int h ;
string_t p = StringVoid ;
string_t q = StringVoid ;
int lmode ;
int fd ;
const char * mode ;
const char * mapper_1 ;
/*
* zuluCryptPathIsNotValid() is defined in is_path_valid.c
*/
if( zuluCryptPathIsNotValid( dev ) ){
return 3 ;
}
/*
* zuluCryptMapperPrefix() is defined in create_mapper_name.c
*/
p = String( zuluCryptMapperPrefix() ) ;
mapper_1 = StringMultipleAppend( p,"/",mapper,END ) ;
/*
* zuluCryptPathIsValid() is defined in is_path_valid.c
*/
if( zuluCryptPathIsValid( mapper_1 ) ){
return zuluExit( 2,p ) ;
}
if( m_opts & MS_RDONLY ){
lmode = O_RDONLY ;
mode = "ro" ;
}else{
lmode = O_RDWR ;
mode = "rw" ;
}
if( StringPrefixMatch( dev,"/dev/",5 ) ){
h = _open_mapper( dev,mapper,mode,pass,pass_size ) ;
}else{
/*
* zuluCryptAttachLoopDeviceToFile() is defined in create_loop_device.c
*/
if( zuluCryptAttachLoopDeviceToFile( dev,lmode,&fd,&q ) ){
dev = StringContent( q ) ;
h = _open_mapper( dev,mapper,mode,pass,pass_size ) ;
close( fd ) ;
StringDelete( &q ) ;
}else{
h = 1 ;
}
}
switch( h ){
case 1 : return zuluExit( 4,p ) ;
case 2 : return zuluExit( 8,p ) ;
case 3 : return zuluExit( 3,p ) ;
}
if( m_point != NULL ){
/*
* zuluCryptMountVolume() is defined in mount_volume.c
*/
h = zuluCryptMountVolume( mapper_1,m_point,m_opts,fs_opts,id ) ;
if( h != 0 ){
/*
* zuluCryptCloseMapper() is defined in close_mapper.c
*/
if( zuluCryptCloseMapper( mapper_1 ) != 0 ){
h = 15 ;
}
}
}
return zuluExit( h,p ) ;
}
int zuluCryptEXEOpenVolume( const struct_opts * opts,const char * mapping_name,uid_t uid )
{
int share = opts->share ;
int open_mount = opts->open_mount ;
const char * device = opts->device ;
const char * mount_point = opts->mount_point ;
const char * m_opts = opts->m_opts ;
const char * source = opts->key_source ;
const char * pass = opts->key ;
const char * plugin_path = opts->plugin_path ;
const char * fs_opts = opts->fs_opts ;
const char * offset = opts->offset ;
const char * const * tcrypt_keyfiles = opts->tcrypt_multiple_keyfiles ;
/*
* Below is a form of memory management.All strings are collected in a stringlist object to easily delete them
* when the function returns.This allows for the function to have multiple exit points without risks of leaking
* memory from manually examining each exit point to make sure all strings are deleted or go with multiple goto
* code deleting blocks to take into account different exit points.
*/
stringList_t stl ;
string_t * stringArray = StringListArray( &stl,6 ) ;
string_t * passphrase = &stringArray[ 0 ] ;
string_t * m_name = &stringArray[ 1 ] ;
string_t * data = &stringArray[ 2 ] ;
string_t * m_point = &stringArray[ 3 ] ;
string_t * mapper = &stringArray[ 4 ] ;
string_t * mapper_path = &stringArray[ 5 ] ;
const char * key = NULL ;
const char * mapper_name ;
const char * e ;
size_t key_len = 0 ;
int st = 0 ;
stringList_t stz ;
tvcrypt v_info ;
unsigned long m_flags ;
int tcrypt_keyfile = 0 ;
const char * uuid ;
char * device_path ;
/*
* open_struct_t is declared in ../lib/include.h
*/
open_struct_t volume ;
struct stat statstr ;
/*
* zuluCryptVolumeIsInSystemVolumeList() is defined in volumes.c
*/
if( zuluCryptVolumeIsInSystemVolumeList( device ) ){
/*
* check permissions only if volume is explicity mentioned as system.
* This is an exception to avoid some udev bad behaviors on udev enabled build
*/
if( !zuluCryptUserIsAMemberOfAGroup( uid,"zulucrypt" ) ){
return zuluExit( 22,device,mount_point,stl ) ;
}
}
if( m_opts == NULL ){
m_opts = "rw" ;
}
/*
* zuluCryptMountFlagsAreNotCorrect() is defined in ./mount_flags.c
*/
if( zuluCryptMountFlagsAreNotCorrect( m_opts,uid,&m_flags ) ){
return zuluExit( 5,device,mount_point,stl ) ;
}
if( StringHasComponent( m_opts,"rw" ) ){
/*
* zuluCryptSecurityDeviceIsWritable() is defined in path_access.c
*/
st = zuluCryptCanOpenPathForWriting( device,uid ) ;
}else{
/*
* zuluCryptSecurityDeviceIsReadable() is defined in path_access.c
*/
st = zuluCryptCanOpenPathForReading( device,uid ) ;
}
/*
* 1-permissions denied
* 2-invalid path
* 3-shenanigans
* 4-common error
*/
switch( st ){
case 0 : break ;
case 1 : return zuluExit( 6,device,mount_point,stl ) ;
case 2 : return zuluExit( 6,device,mount_point,stl ) ;
case 3 : return zuluExit( 6,device,mount_point,stl ) ;
case 4 : return zuluExit( 6,device,mount_point,stl ) ;
default: return zuluExit( 6,device,mount_point,stl ) ;
}
if( open_mount ){
/*
* zuluCryptCreateMountPoint() is defined in create_mount_point.c
*/
*m_point = zuluCryptCreateMountPoint( device,mount_point,m_opts,uid ) ;
mount_point = StringContent( *m_point ) ;
if( mount_point == NULL ){
return zuluExit( 9,device,mount_point,stl ) ;
}
}else{
if( uid != 0 ){
return zuluExit( 7,device,mount_point,stl ) ;
}
if( mount_point != NULL ){
return zuluExit( 8,device,mount_point,stl ) ;
}
}
if( share ){
/*
* zuluCryptBindSharedMountPointPathTaken() is defined in bind.c
*/
if( zuluCryptBindSharedMountPointPathTaken( *m_point ) ){
return zuluExit_1( 10,opts,device,mount_point,stl ) ;
}
}
/*
* zuluCryptCreateMapperName() is defined in ../lib/create_mapper_name.c
*/
*m_name = zuluCryptCreateMapperName( device,mapping_name,uid,ZULUCRYPTshortMapperPath ) ;
*mapper = StringCopy( *m_name ) ;
mapper_name = StringContent( *m_name ) ;
*mapper_path = String( zuluCryptMapperPrefix() ) ;
e = StringMultipleAppend( *mapper_path,"/",mapper_name,NULL ) ;
if( stat( e,&statstr ) == 0 ){
return zuluExit_1( 11,opts,device,mount_point,stl ) ;
}
if( plugin_path != NULL ){
/*
* zuluCryptUUIDFromPath() is defined in path_access.c
*/
uuid = zuluCryptUUIDFromPath( device ) ;
device_path = _device_path( device ) ;
/*
* zuluCryptPluginManagerGetKeyFromModule is defined in ../pluginManager/zuluCryptPluginManager.c
*/
*passphrase = zuluCryptPluginManagerGetKeyFromModule( device_path,plugin_path,uuid,uid,opts,&st ) ;
StringFree( device_path ) ;
StringFree( uuid ) ;
if( st != 0 || *passphrase == StringVoid ){
return zuluExit_1( 12,opts,device,mount_point,stl ) ;
}
key_len = StringLength( *passphrase ) ;
key = StringContent( *passphrase ) ;
zuluCryptSecurityLockMemory_1( *passphrase ) ;
}else if( source == NULL && tcrypt_keyfiles[ 0 ] == NULL ){
printf( gettext( "Enter passphrase: " ) ) ;
/*
* ZULUCRYPT_KEY_MAX_SIZE is set in ../constants.h
*/
switch( StringSilentlyGetFromTerminal_1( passphrase,ZULUCRYPT_KEY_MAX_SIZE ) ){
case 1 : return zuluExit_1( 13,opts,device,mount_point,stl ) ;
case 2 : return zuluExit_1( 14,opts,device,mount_point,stl ) ;
}
printf( "\n" ) ;
key = StringContent( *passphrase ) ;
key_len = StringLength( *passphrase ) ;
zuluCryptSecurityLockMemory_1( *passphrase ) ;
}else{
if( source == NULL || pass == NULL ){
if( tcrypt_keyfiles == NULL ){
return zuluExit_1( 15,opts,device,mount_point,stl ) ;
}
}
if( StringsAreEqual( source,"-p" ) ){
key = pass ;
key_len = StringSize( pass ) ;
}else if( StringsAreEqual( source,"-f" ) ){
if( StringHasNoComponent( pass,"/.zuluCrypt-socket" ) ){
tcrypt_keyfile = 1 ;
}
/*
* function is defined at "path_access.c"
*/
switch( zuluCryptGetPassFromFile( pass,uid,data ) ){
case 1 : return zuluExit_1( 16,opts,device,mount_point,stl ) ;
case 2 : return zuluExit_1( 17,opts,device,mount_point,stl ) ;
case 4 : return zuluExit_1( 18,opts,device,mount_point,stl ) ;
case 5 : return zuluExit_1( 19,opts,device,mount_point,stl ) ;
}
key = StringContent( *data ) ;
key_len = StringLength( *data ) ;
zuluCryptSecurityLockMemory_1( *data ) ;
}
}
memset( &volume,'\0',sizeof( open_struct_t ) ) ;
if( key != NULL ){
volume.key = key ;
volume.key_len = key_len ;
}else{
volume.key = "" ;
volume.key_len = 0 ;
}
volume.device = device ;
volume.offset = offset ;
volume.mapper_name = mapper_name ;
volume.m_point = mount_point ;
volume.fs_opts = fs_opts ;
volume.uid = uid ;
volume.m_opts = m_opts ;
volume.m_flags = m_flags ;
/*
* zuluCryptTrueCryptVeraCryptVolumeInfo() is defined in this source file.
*/
zuluCryptTrueCryptVeraCryptVolumeInfo( opts->type,&v_info ) ;
volume.iteration_count = v_info.iteration_count ;
volume.veraCrypt_volume = StringAtLeastOneMatch( v_info.type,"vcrypt","veracrypt","vera",NULL ) ;
StringDelete( &v_info.type ) ;
plugin_path = plugin_path + StringLastIndexOfChar_1( plugin_path,'/' ) + 1 ;
volume.luks_detached_header = StringHasComponent( plugin_path,"luks" ) ;
volume.general_detached_header = StringHasComponent( plugin_path,"generic_header" ) ;
if( tcrypt_keyfile ){
volume.key_source = TCRYPT_KEYFILE ;
}
if( tcrypt_keyfiles[ 0 ] != NULL ){
/*
* Here, we take a list of keyfiles supplied by the user and then copy them to a safe
* location at "/run/zuluCrypt" and then we pass these safe copies to cryptsetup.
*
* The idea is not to let cryptsetup, a privileged process handle user managed files.
*/
stz = zuluCryptCreateKeyFiles( tcrypt_keyfiles,0 ) ;
volume.tcrypt_keyfiles_count = StringListSize( stz ) ;
volume.tcrypt_keyfiles = StringListStringArray_0( stz ) ;
st = _open_volume( &volume ) ;
zuluCryptDeleteKeyFiles( stz ) ;
StringFree( volume.tcrypt_keyfiles ) ;
StringListDelete( &stz ) ;
}else{
st = _open_volume( &volume ) ;
}
/*
* below two return values comes from ../lib/mount_volume.c
*/
if( st == -1 ){
st = 20 ;
}
if( st == 12 ){
st = 21 ;
}
if( st == 8 || st == 3 ){
st = 3 ;
}
device = StringMultiplePrepend( *mapper,"/",zuluCryptMapperPrefix(),NULL ) ;
if( st == 0 && share ){
/*
* user wish to share the mount point bind the mount point to a publicly accessed path at /run/media/public/
*/
/*
* zuluCryptBindMountVolume() is defined in ../zuluCrypt-cli/bin/bind.c
*/
zuluCryptBindMountVolume( device,*m_point,m_flags ) ;
}
/*
* zuluCryptCheckInvalidKey() is defined in check_invalid_key.c
*/
zuluCryptCheckInvalidKey( opts->device ) ;
return zuluExit_1( st,opts,device,mount_point,stl ) ;
}
