def mkfs(self, parameters):
"""Create file systems in existing partitions"""
img_path = ImagePath.parse(parameters[0])
image = DiskImage(img_path.imagefile, "a")
phys = createPhysicalImageFromImageType(img_path.imagetype, image)
filesystem = phys.get_filesystem(img_path.partition)
filesystem.format()
def dump(self, parameters):
"""Dump the details of a disk image.
{cmd} <image_file_name> l<detail level>
The amount of details can be controlled with the l<number> parameter.
1 Show details about the image
2 Show a first level of details for all contained file systems."""
img_path = ImagePath.parse(parameters[0])
level = int(parameters[1][1:])
image = DiskImage(img_path.imagefile, "a")
phys = createPhysicalImageFromImageType(img_path.imagetype, image)
phys.dump(level=level)
def copy(self, parameters):
"""Copy a file from or to a location inside an image"""
if len(parameters) != 2:
print("Source and destination file are required")
return
# for the moment only allow copying from a real file to a location in
# an image file
source_file = open(parameters[0], "rb")
if sys.version_info[0] >= 3:
source_data = source_file.read().decode("latin-1")
else:
source_data = source_file.read()
source_file.close()
img_path = ImagePath.parse(parameters[1])
image = DiskImage(img_path.imagefile, "a")
phys = createPhysicalImageFromImageType(img_path.imagetype, image)
filesystem = phys.get_filesystem(img_path.partition)
target_file = filesystem.open(img_path.filepath, "w")
target_file.write(source_data)
target_file.close()
def create(self, parameters):
"""Create a new partition.
{cmd} <image_url> start=<start_lba> end=<end_lba> type=<type number>
[spt=<sectors per track> hpc=<heads per cluster>]"""
start_lba = None
end_lba = None
partition_type = None
sectors_per_track = 63
heads_per_cluster = 16
from pyvirtualfs.image_path import ImagePath, PathParseError
from pyvirtualfs.tools import int_ex
try:
image_url = ImagePath.parse(parameters[0])
except PathParseError as p:
print("First argument of create must be an image path with"
"a partition")
print(p.msg)
return
for param in parameters[1:]:
(key, value) = param.split("=")
if key == "start":
start_lba = int_ex(value)
elif key == "end":
end_lba = int_ex(value)
elif key == "type":
partition_type = int_ex(value)
elif key == "spt":
sectors_per_track = int_ex(value)
elif key == "hpc":
heads_per_cluster = int_ex(value)
else:
print("Unknown key name '%s'" % key)
return
if start_lba is None:
print("Need a start LBA for this partition")
return
if end_lba is None:
print("Need an end LBA for this partition")
return
if partition_type is None:
print("Need a type for this partition")
return
from pyvirtualfs.physical import DiskImage, Harddisk
from pyvirtualfs.tools import lba2chs
assert image_url.imagetype == ImagePath.IMAGE_TYPE_HD
image = DiskImage(image_url.imagefile, "a")
hd = Harddisk(image)
p = hd.get_partition_info(image_url.partition)
p.type = partition_type
p.chs_first_sector = lba2chs(start_lba, heads_per_cluster,
sectors_per_track)
p.chs_last_sector = lba2chs(end_lba, heads_per_cluster,
sectors_per_track)
p.lba_first_sector = start_lba
p.sectors_in_partition = end_lba - start_lba + 1
hd.set_partition_info(image_url.partition, p)
hd.update_image(0x337a0564)
def execute(self, parameters):
from pyvirtualfs.image_path import ImagePath
img_path = ImagePath.parse(parameters[0])