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- Updated partition name and partition content name length limits

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to B_FILE_NAME_LENGTH.
- Added partition [content] name copy-out code to
  _kern_validate_{set_partition_name,set_partition_content_name,
  intialize_partition}.
- Added parameter security to _kern_supports_moving_partition().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5177 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Tyler Dauwalder
2003-10-27 07:28:55 +00:00
parent cc1c3ed6ec
commit de5a94dbc6
1 changed files with 67 additions and 40 deletions
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src/kernel/core/disk_device_manager/ddm_userland_interface.cpp
+67 -40
View File
@@ -505,46 +505,65 @@ _kern_supports_resizing_partition(partition_id partitionID,
return result; return result;
} }
// ToDo: Add parameter security
// _kern_supports_moving_partition // _kern_supports_moving_partition
bool bool
_kern_supports_moving_partition(partition_id partitionID, int32 changeCounter, _kern_supports_moving_partition(partition_id partitionID, int32 changeCounter,
partition_id *unmovable, partition_id *_unmovable,
partition_id *needUnmounting, partition_id *_needUnmounting,
size_t bufferSize) size_t bufferSize)
{ {
if ((!unmovable || needUnmounting) && bufferSize > 0) if ((!_unmovable || !_needUnmounting) && bufferSize > 0)
return false; return false;
partition_id *unmovable = NULL;
partition_id *needUnmounting = NULL;
if (bufferSize > 0) {
unmovable = static_cast<partition_id*>(malloc(bufferSize));
needUnmounting = static_cast<partition_id*>(malloc(bufferSize));
if (unmovable && needUnmounting) {
user_memcpy(unmovable, _unmovable, bufferSize);
user_memcpy(needUnmounting, _needUnmounting, bufferSize);
} else {
free(unmovable);
free(needUnmounting);
return false;
}
}
KDiskDeviceManager *manager = KDiskDeviceManager::Default(); KDiskDeviceManager *manager = KDiskDeviceManager::Default();
// get the partition // get the partition
KPartition *partition = manager->ReadLockPartition(partitionID); KPartition *partition = manager->ReadLockPartition(partitionID);
if (!partition) bool result = partition;
return false; if (result) {
PartitionRegistrar registrar1(partition, true); PartitionRegistrar registrar1(partition, true);
PartitionRegistrar registrar2(partition->Device(), true); PartitionRegistrar registrar2(partition->Device(), true);
DeviceReadLocker locker(partition->Device(), true); DeviceReadLocker locker(partition->Device(), true);
if (!check_shadow_partition(partition, changeCounter) result = check_shadow_partition(partition, changeCounter)
|| !partition->Parent()) { && partition->Parent();
return false; if (result) {
result = !partition->Parent()->IsBusy()
&& !partition->Parent()->IsDescendantBusy();
}
if (result) {
// get the parent disk system
KDiskSystem *parentDiskSystem = partition->Parent()->DiskSystem();
result = parentDiskSystem;
if (result)
result = parentDiskSystem->SupportsMovingChild(partition);
if (result) {
// check the movability of the descendants' contents
size_t unmovableSize = bufferSize;
size_t needUnmountingSize = bufferSize;
result = get_unmovable_descendants(partition, unmovable,
unmovableSize, needUnmounting,
needUnmountingSize);
}
}
} }
if (partition->Parent()->IsBusy() if (result && bufferSize > 0) {
|| partition->Parent()->IsDescendantBusy()) { user_memcpy(_unmovable, unmovable, bufferSize);
return false; user_memcpy(_needUnmounting, needUnmounting, bufferSize);
}
// get the parent disk system
KDiskSystem *parentDiskSystem = partition->Parent()->DiskSystem();
if (!parentDiskSystem)
return false;
bool result = parentDiskSystem->SupportsMovingChild(partition);
if (!result)
return false;
// check the movability of the descendants' contents
size_t unmovableSize = bufferSize;
size_t needUnmountingSize = bufferSize;
if (!get_unmovable_descendants(partition, unmovable, unmovableSize,
needUnmounting, needUnmountingSize)) {
return false;
} }
free(unmovable);
free(needUnmounting);
return result; return result;
} }
@@ -849,8 +868,8 @@ _kern_validate_set_partition_name(partition_id partitionID,
{ {
if (!_name) if (!_name)
return B_BAD_VALUE; return B_BAD_VALUE;
char name[B_OS_NAME_LENGTH]; char name[B_FILE_NAME_LENGTH];
status_t error = ddm_strlcpy(name, _name, B_OS_NAME_LENGTH, true); status_t error = ddm_strlcpy(name, _name, B_FILE_NAME_LENGTH, true);
if (error) if (error)
return error; return error;
KDiskDeviceManager *manager = KDiskDeviceManager::Default(); KDiskDeviceManager *manager = KDiskDeviceManager::Default();
@@ -861,7 +880,10 @@ _kern_validate_set_partition_name(partition_id partitionID,
PartitionRegistrar registrar1(partition, true); PartitionRegistrar registrar1(partition, true);
PartitionRegistrar registrar2(partition->Device(), true); PartitionRegistrar registrar2(partition->Device(), true);
DeviceReadLocker locker(partition->Device(), true); DeviceReadLocker locker(partition->Device(), true);
return validate_set_partition_name(partition, changeCounter, name); error = validate_set_partition_name(partition, changeCounter, name);
if (!error)
error = ddm_strlcpy(_name, name, B_FILE_NAME_LENGTH);
return error;
} }
// _kern_validate_set_partition_content_name // _kern_validate_set_partition_content_name
@@ -871,8 +893,8 @@ _kern_validate_set_partition_content_name(partition_id partitionID,
{ {
if (!_name) if (!_name)
return B_BAD_VALUE; return B_BAD_VALUE;
char name[B_OS_NAME_LENGTH]; char name[B_FILE_NAME_LENGTH];
status_t error = ddm_strlcpy(name, _name, B_OS_NAME_LENGTH, true); status_t error = ddm_strlcpy(name, _name, B_FILE_NAME_LENGTH, true);
if (error) if (error)
return error; return error;
KDiskDeviceManager *manager = KDiskDeviceManager::Default(); KDiskDeviceManager *manager = KDiskDeviceManager::Default();
@@ -883,7 +905,10 @@ _kern_validate_set_partition_content_name(partition_id partitionID,
PartitionRegistrar registrar1(partition, true); PartitionRegistrar registrar1(partition, true);
PartitionRegistrar registrar2(partition->Device(), true); PartitionRegistrar registrar2(partition->Device(), true);
DeviceReadLocker locker(partition->Device(), true); DeviceReadLocker locker(partition->Device(), true);
return validate_set_partition_content_name(partition, changeCounter, name); error = validate_set_partition_content_name(partition, changeCounter, name);
if (!error)
error = ddm_strlcpy(_name, name, B_FILE_NAME_LENGTH);
return error;
} }
// _kern_validate_set_partition_type // _kern_validate_set_partition_type
@@ -919,11 +944,11 @@ _kern_validate_initialize_partition(partition_id partitionID,
if (!_diskSystemName || !_name) if (!_diskSystemName || !_name)
return B_BAD_VALUE; return B_BAD_VALUE;
char diskSystemName[B_OS_NAME_LENGTH]; char diskSystemName[B_OS_NAME_LENGTH];
char name[B_OS_NAME_LENGTH]; char name[B_FILE_NAME_LENGTH];
char *parameters = NULL; char *parameters = NULL;
status_t error = ddm_strlcpy(diskSystemName, _diskSystemName, B_OS_NAME_LENGTH); status_t error = ddm_strlcpy(diskSystemName, _diskSystemName, B_OS_NAME_LENGTH);
if (!error) if (!error)
error = ddm_strlcpy(name, _name, B_OS_NAME_LENGTH, true); error = ddm_strlcpy(name, _name, B_FILE_NAME_LENGTH, true);
if (error) if (error)
return error; return error;
if (_parameters) { if (_parameters) {
@@ -944,6 +969,8 @@ _kern_validate_initialize_partition(partition_id partitionID,
error = validate_initialize_partition(partition, changeCounter, error = validate_initialize_partition(partition, changeCounter,
diskSystemName, name, parameters); diskSystemName, name, parameters);
} }
if (!error)
error = ddm_strlcpy(_name, name, B_FILE_NAME_LENGTH);
free(parameters); free(parameters);
return error; return error;
} }
@@ -1274,7 +1301,7 @@ _kern_set_partition_name(partition_id partitionID, int32 changeCounter,
if (!_name) if (!_name)
return B_BAD_VALUE; return B_BAD_VALUE;
char name[B_OS_NAME_LENGTH]; char name[B_OS_NAME_LENGTH];
status_t error = ddm_strlcpy(name, _name, B_OS_NAME_LENGTH); status_t error = ddm_strlcpy(name, _name, B_FILE_NAME_LENGTH);
if (error) if (error)
return error; return error;
KDiskDeviceManager *manager = KDiskDeviceManager::Default(); KDiskDeviceManager *manager = KDiskDeviceManager::Default();
@@ -1312,7 +1339,7 @@ _kern_set_partition_content_name(partition_id partitionID, int32 changeCounter,
if (!_name) if (!_name)
return B_BAD_VALUE; return B_BAD_VALUE;
char name[B_OS_NAME_LENGTH]; char name[B_OS_NAME_LENGTH];
status_t error = ddm_strlcpy(name, _name, B_OS_NAME_LENGTH); status_t error = ddm_strlcpy(name, _name, B_FILE_NAME_LENGTH);
if (error) if (error)
return error; return error;
KDiskDeviceManager *manager = KDiskDeviceManager::Default(); KDiskDeviceManager *manager = KDiskDeviceManager::Default();
@@ -1473,7 +1500,7 @@ _kern_initialize_partition(partition_id partitionID, int32 changeCounter,
char *parameters = NULL; char *parameters = NULL;
status_t error = ddm_strlcpy(diskSystemName, _diskSystemName, B_OS_NAME_LENGTH); status_t error = ddm_strlcpy(diskSystemName, _diskSystemName, B_OS_NAME_LENGTH);
if (!error) if (!error)
error = ddm_strlcpy(name, _name, B_OS_NAME_LENGTH); error = ddm_strlcpy(name, _name, B_FILE_NAME_LENGTH);
if (error) if (error)
return error; return error;
if (_parameters) { if (_parameters) {