def init_partition_table(self, part_num):
kb_per_bulk = INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB
sectors_per_bulk = pt.kb2sectors(kb_per_bulk)
first_lba = 1
last_lba = 1
for i in range(part_num):
part = PARTITIONS.part_list[i]
last_wp_chunk = PARTITIONS.wp_chunk_list[-1]
if part.first_lba_in_kb > 0:
first_lba = pt.kb2sectors(part.first_lba_in_kb)
if first_lba < last_lba:
first_lba = last_lba
part.readonly = True
PARTITIONS.update_wp_chunk_list(first_lba, part.size_in_sec,
sectors_per_bulk)
entry = Entry()
if part.bootable is True:
entry.bootable = 0x80
else:
entry.bootable = 0x00
entry.part_type = part._type
entry.first_lba = first_lba
entry.num_sectors = part.size_in_sec
entry.toarray()
self.add_entry(entry)
last_lba = first_lba + part.size_in_sec
def create(self, output_directory, part_num, start_lba):
print "About to make EBR: %i" % start_lba
ebr_offset = 0
first_lba = last_lba = (start_lba + part_num - 3)
kb_per_bulk = INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB
sectors_per_bulk = pt.kb2sectors(kb_per_bulk)
for i in range(3, part_num):
part = PARTITIONS.part_list[i]
last_wp_chunk = PARTITIONS.wp_chunk_list[-1]
if first_lba < last_lba:
first_lba = last_lba
part.readonly = True
PARTITIONS.update_wp_chunk_list(first_lba, part.size_in_sec, sectors_per_bulk)
entry1 = Entry()
if part.bootable is True:
entry1.bootable = 0x80
else:
entry1.bootable = 0x00
entry1.part_type = part._type
entry1.first_lba = first_lba - start_lba - ebr_offset
entry1.num_sectors = part.size_in_sec
entry1.toarray()
mbr = MBR()
mbr.add_entry(entry1)
last_lba = first_lba + part.size_in_sec
print "* %-10s: %-8i ~ %8i" % (part.label, first_lba, last_lba)
entry2 = Entry()
if i < (part_num - 1):
entry2.bootable = 0x00
entry2.part_type = 0x05
entry2.first_lba = i - 2
entry2.num_sectors = 1
entry2.toarray()
mbr.add_entry(entry2)
empty_entry = Entry()
empty_entry.toarray()
mbr.add_entry(empty_entry)
mbr.add_entry(empty_entry)
mbr.toarray()
self.items.append(mbr)
ebr_offset += 1
image_file = "%s/EBR.bin" % output_directory
BUG.green("Create %s <-- Extented Boot Recorder" % image_file)
with open(image_file, 'wb') as f:
for e in self.items:
for b in e.array:
f.write(struct.pack('B', b))
f.close()
def init_partition_table(self, part_num, needs_ebr):
kb_per_bulk = INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB
sectors_per_bulk = pt.kb2sectors(kb_per_bulk)
first_lba = 1
last_lba = 1
for i in range(part_num):
part = PARTITIONS.part_list[i]
last_wp_chunk = PARTITIONS.wp_chunk_list[-1]
if part.first_lba_in_kb > 0:
first_lba = pt.kb2sectors(part.first_lba_in_kb)
if first_lba < last_lba:
first_lba = last_lba
part.readonly = True
PARTITIONS.update_wp_chunk_list(first_lba, part.size_in_sec, sectors_per_bulk)
entry = Entry()
if part.bootable is True:
entry.bootable = 0x80
else:
entry.bootable = 0x00
entry.part_type = part._type
entry.first_lba = first_lba
entry.num_sectors = part.size_in_sec
entry.toarray()
self.add_entry(entry)
last_lba = first_lba + part.size_in_sec
print "* %-10s: %-8i ~ %8i" % (part.label, first_lba, last_lba)
if needs_ebr is True:
entry = Entry()
entry.bootable = 0x00
entry.part_type = 0x05
entry.first_lba = last_lba
entry.num_sectors = 0
entry.toarray()
self.add_entry(entry)
return (first_lba, last_lba)
def xml2object(self, xml):
config_count = 0
instruct_count = 0
phy_part_count = 0
root = ET.parse(xml)
iterator = root.getiterator()
for e in iterator:
if e.tag == "configuration":
config_count += 1
elif e.tag == "parser_instructions":
instruct_count += 1
INSTRUCTIONS.text2expr(e.text)
elif e.tag == "physical_partition":
phy_part_count += 1
elif e.tag == "partition":
if e.keys():
part = pt.Partition()
part.items2expr(e.items())
if part.is_gpt is True and part.is_mbr is False:
PARTITIONS._type = PARTITIONS.GPT_TYPE
elif part.is_gpt is False and part.is_mbr is True:
PARTITIONS._type = PARTITIONS.MBR_TYPE
else:
BUG.error("Cannot defined the type of partition table.")
# Now add this Partition object to PARTITIONS unless it's the
# label EXT, which is a left over legacy tag
if part.label != 'EXT':
PARTITIONS.add_part(part)
else:
BUG.error("Invalidate label (EXT) for tag (partition).")
else:
BUG.info("Empty keys for tag (partition).")
else:
BUG.error("Invalidate tag (%s)." % e.tag)
if config_count > 1 or instruct_count > 1 or phy_part_count > 1:
BUG.error("Multiple defined tag (%s)." % e.tag)
if len(PARTITIONS.part_list) == 0:
BUG.error("Empty tag (physical_partition) was detected.")
if (PARTITIONS._type is PARTITIONS.GPT_TYPE) and \
(INSTRUCTIONS.WRITE_PROTECT_GPT is True) and \
(INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB != 0):
sectors_per_bulk = pt.kb2sectors(INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB)
first_chunk = PARTITIONS.wp_chunk_list[0]
first_chunk.start_sector = 0
first_chunk.end_sector = sectors_per_bulk - 1
first_chunk.num_sectors = sectors_per_bulk
first_chunk.start_bulk = first_chunk.start_sector / sectors_per_bulk
first_chunk.num_bulk = first_chunk.num_sectors / sectors_per_bulk
def init_primary_gpt(self):
first_lba = self.primary_gpt.first_partition_lba
last_lba = first_lba
sectors_till_next_bulk = 0
kb_per_bulk = INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB
sectors_per_bulk = pt.kb2sectors(kb_per_bulk)
print "=" * 60
print "| PartName Size(KB) Readonly FirstLBA LastLBA"
print "=" * 60
for i in range(len(PARTITIONS.part_list)):
part = PARTITIONS.part_list[i]
last_wp_chunk = PARTITIONS.wp_chunk_list[-1]
if kb_per_bulk > 0:
sectors_till_next_bulk = pt.sectors_till_next_bulk(first_lba, kb_per_bulk)
if part.readonly is True:
# To be here means this partition is read-only, so see if
# we need to move the start lba
if first_lba > last_wp_chunk.end_sector:
first_lba += sectors_till_next_bulk
PARTITIONS.update_wp_chunk_list(first_lba, part.size_in_sec, sectors_per_bulk)
else:
# To be here means this partition is writeable, so see if
# we need to move the start
if first_lba <= last_wp_chunk.end_sector:
first_lba += sectors_till_next_bulk
# The last partition
if (i + 1) == len(PARTITIONS.part_list) and INSTRUCTIONS.AUTO_GROW_LAST_PARTITION is True:
part.size_in_kb = part.size_in_sec = 0 # Infinite huge
# Increase by number of sectors, last lba inclusive, so add 1 for size.
last_lba = first_lba + part.size_in_sec
# Inclusive, meaning 0 to 3 is 4 sectors, or another way,
# last lba must be odd.
last_lba -= 1
unique_guid = 0x0
if OPTIONS.sequential_guid is True:
unique_guid = i + 1
elif part.uniqueguid != "":
unique_guid = part.uniqueguid
else:
unique_guid = random.randint(0, 2 ** (128))
attributes = 0x0
if part.readonly is True:
attributes |= 1 << 60
if part.hidden is True:
attributes |= 1 << 62
if part.dontautomount is True:
attributes |= 1 << 63
if part.system is True:
attributes |= 1
entry = Entry()
entry.set(part._type, unique_guid, first_lba, last_lba, attributes, part.label)
entry.toarray()
self.primary_gpt.add_entry(entry)
print "| %-12s%-10d%-9s%-10d%-d" % (part.label, part.size_in_kb, str(part.readonly), first_lba, last_lba)
print "-" * 60
first_lba = last_lba + 1
last_lba = first_lba
if INSTRUCTIONS.AUTO_GROW_LAST_PARTITION is False:
last_lba += 32 # 33 - 1 (Size of Secondary GPT - 1)
else:
last_lba = 0x0
# Calculate to the numbers of entry items into array.
real_entry_number = len(PARTITIONS.part_list)
entry_number = 0
if OPTIONS.all_128_partitions is True:
entry_number = 128
else:
entry_number = (real_entry_number / 4) * 4
if real_entry_number % 4 > 0:
entry_number += 4
entry_array_crc32 = self.primary_gpt.entry_array_crc32(entry_number)
self.primary_gpt.update_gpt_header(last_lba, entry_number, entry_array_crc32)
self.primary_gpt.toarray()
def init_primary_gpt(self):
first_lba = self.primary_gpt.first_partition_lba
last_lba = first_lba
sectors_till_next_bulk = 0
kb_per_bulk = INSTRUCTIONS.WRITE_PROTECT_BULK_SIZE_IN_KB
sectors_per_bulk = pt.kb2sectors(kb_per_bulk)
print '=' * 60
print '| PartName Size(KB) Readonly FirstLBA LastLBA'
print '=' * 60
for i in range(len(PARTITIONS.part_list)):
part = PARTITIONS.part_list[i]
last_wp_chunk = PARTITIONS.wp_chunk_list[-1]
if kb_per_bulk > 0:
sectors_till_next_bulk = pt.sectors_till_next_bulk(
first_lba, kb_per_bulk)
if part.readonly is True:
# To be here means this partition is read-only, so see if
# we need to move the start lba
if first_lba > last_wp_chunk.end_sector:
first_lba += sectors_till_next_bulk
PARTITIONS.update_wp_chunk_list(first_lba, part.size_in_sec,
sectors_per_bulk)
else:
# To be here means this partition is writeable, so see if
# we need to move the start
if first_lba <= last_wp_chunk.end_sector:
first_lba += sectors_till_next_bulk
# The last partition
if (i + 1) == len(PARTITIONS.part_list) and \
INSTRUCTIONS.AUTO_GROW_LAST_PARTITION is True:
part.size_in_kb = part.size_in_sec = 0 # Infinite huge
# Increase by number of sectors, last lba inclusive, so add 1 for size.
last_lba = first_lba + part.size_in_sec
# Inclusive, meaning 0 to 3 is 4 sectors, or another way,
# last lba must be odd.
last_lba -= 1
unique_guid = 0x0
if OPTIONS.sequential_guid is True:
unique_guid = i + 1
elif part.uniqueguid != "":
unique_guid = part.uniqueguid
else:
unique_guid = random.randint(0, 2**(128))
attributes = 0x0
if part.readonly is True:
attributes |= 1 << 60
if part.hidden is True:
attributes |= 1 << 62
if part.dontautomount is True:
attributes |= 1 << 63
if part.system is True:
attributes |= 1
entry = Entry()
entry.set(part._type, unique_guid, first_lba, \
last_lba, attributes, part.label)
entry.toarray()
self.primary_gpt.add_entry(entry)
print "| %-12s%-10d%-9s%-10d%-d" \
% (part.label, part.size_in_kb, str(part.readonly), first_lba, last_lba)
print '-' * 60
first_lba = last_lba + 1
last_lba = first_lba
if INSTRUCTIONS.AUTO_GROW_LAST_PARTITION is False:
last_lba += 32 # 33 - 1 (Size of Secondary GPT - 1)
else:
last_lba = 0x0
# Calculate to the numbers of entry items into array.
real_entry_number = len(PARTITIONS.part_list)
entry_number = 0
if OPTIONS.all_128_partitions is True:
entry_number = 128
else:
entry_number = (real_entry_number / 4) * 4
if real_entry_number % 4 > 0:
entry_number += 4
entry_array_crc32 = self.primary_gpt.entry_array_crc32(entry_number)
self.primary_gpt.update_gpt_header(last_lba, entry_number, \
entry_array_crc32)
self.primary_gpt.toarray()
