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Populate encrypted Partition member inside PartitionLUKS (#760080)

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When there exists an open dm-crypt mapping, populate the encrypted
Partition object representing the encrypted file system.

Bug 760080 - Implement read-only LUKS support
This commit is contained in:
Mike Fleetwood 2015-12-23 12:26:17 +00:00 committed by Curtis Gedak
parent 99ff0c7628
commit c9a2986fb9
3 changed files with 46 additions and 10 deletions
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3
include/GParted_Core.h
View file

@ -21,6 +21,7 @@
#include "../include/FileSystem.h"
#include "../include/Operation.h"
#include "../include/Partition.h"
#include "../include/PartitionLUKS.h"
#include "../include/PartitionVector.h"
#include <parted/parted.h>
@ -92,7 +93,7 @@ private:
void set_device_partitions( Device & device, PedDevice* lp_device, PedDisk* lp_disk ) ;
void set_device_one_partition( Device & device, PedDevice * lp_device, FILESYSTEM fstype,
std::vector<Glib::ustring> & messages );
void debug_luks_partition( Partition & partition );
void set_luks_partition( PartitionLUKS & partition );
void set_partition_label_and_uuid( Partition & partition );
static FILESYSTEM detect_filesystem_internal( PedDevice * lp_device, PedPartition * lp_partition );
static FILESYSTEM detect_filesystem( PedDevice * lp_device, PedPartition * lp_partition,

2
include/PartitionLUKS.h
View file

@ -31,6 +31,8 @@ public:
virtual ~PartitionLUKS();
virtual PartitionLUKS * clone() const;
Partition & get_encrypted() { return encrypted; };
private:
Partition encrypted;
};

51
src/GParted_Core.cc
View file

@ -1303,7 +1303,7 @@ void GParted_Core::set_device_partitions( Device & device, PedDevice* lp_device,
set_flags( *partition_temp, lp_partition );
if ( filesystem == FS_LUKS )
debug_luks_partition( *partition_temp );
set_luks_partition( *dynamic_cast<PartitionLUKS *>( partition_temp ) );
if ( partition_temp->busy && partition_temp->partition_number > device.highest_busy )
device.highest_busy = partition_temp->partition_number;
@ -1418,7 +1418,7 @@ void GParted_Core::set_device_one_partition( Device & device, PedDevice * lp_dev
partition_temp->add_paths( pp_info.get_alternate_paths( partition_temp->get_path() ) );
if ( fstype == FS_LUKS )
debug_luks_partition( *partition_temp );
set_luks_partition( *dynamic_cast<PartitionLUKS *>( partition_temp ) );
if ( partition_temp->busy )
device.highest_busy = 1;
@ -1430,16 +1430,49 @@ void GParted_Core::set_device_one_partition( Device & device, PedDevice * lp_dev
device.partitions.push_back_adopt( partition_temp );
}
void GParted_Core::debug_luks_partition( Partition & partition )
void GParted_Core::set_luks_partition( PartitionLUKS & partition )
{
// FIXME: Temporary debugging of LUKS mapping.
LUKS_Mapping mapping = LUKS_Info::get_cache_entry( partition.get_path() );
if ( mapping.name.empty() )
std::cout << "DEBUG: " << partition.get_path() << ": LUKS closed" << std::endl;
else
std::cout << "DEBUG: " << partition.get_path()
<< ": LUKS open mapping " << DEV_MAPPER_PATH << mapping.name << ", offset=" << mapping.offset
<< ", length=" << mapping.length << std::endl;
// No LUKS mapping found so no device file with which to query the
// encrypted file system. Assume no open dm-crypt mapping exists.
// Details of encrypted file system left blank.
return;
Glib::ustring mapping_path = DEV_MAPPER_PATH + mapping.name;
PedDevice* lp_device = NULL;
std::vector<Glib::ustring> detect_messages;
FILESYSTEM fstype = FS_UNKNOWN;
if ( get_device( mapping_path, lp_device ) )
{
fstype = detect_filesystem( lp_device, NULL, detect_messages );
PedDisk* lp_disk = NULL;
destroy_device_and_disk( lp_device, lp_disk );
}
bool fs_busy = is_busy( fstype, mapping_path );
Partition & encrypted = partition.get_encrypted();
encrypted.Set( partition.get_path(),
mapping_path,
1,
TYPE_PRIMARY,
false,
fstype,
// Start and end sectors locate the encrypted file system within
// the LUKS partition. LUKS header is everything before.
mapping.offset / partition.sector_size,
( mapping.offset + mapping.length ) / partition.sector_size - 1LL,
partition.sector_size,
false,
fs_busy );
encrypted.messages = detect_messages;
Proc_Partitions_Info pp_info; // Use cache of proc partitions information
encrypted.add_paths( pp_info.get_alternate_paths( encrypted.get_path() ) );
set_partition_label_and_uuid( encrypted );
set_mountpoints( encrypted );
set_used_sectors( encrypted, NULL );
}
void GParted_Core::set_partition_label_and_uuid( Partition & partition )