def test_MACHO_prebind_64(assertion):
global log_history
macho_64 = open(__dir__ + 'macho_64.out', 'rb').read()
e = MACHO(macho_64)
d = e.virt[0x100000f50:0x100000f62]
assertion('structure definie\0', d.decode('latin1'),
'Extract chunk from mapped memory, in a section (64 bits)')
e.virt[0x100000f50:0x100000f5c] = 'Hello World\0'.encode('latin1')
d = e.pack()
assertion('b29fe575093a6f68a54131e59138e1d8',
hashlib.md5(d).hexdigest(),
'Writing in memory (interval) (64 bits)')
e.virt[0x100000f50] = 'Hello World\0'.encode('latin1')
d = e.pack()
assertion('b29fe575093a6f68a54131e59138e1d8',
hashlib.md5(d).hexdigest(),
'Writing in memory (address) (64 bits)')
e.add(
macho.Section(parent=macho.sectionHeader(parent=e.load),
content='arbitrary content'.encode('latin1')))
d = e.pack()
assertion('be836b2b8adcff60bcc7ca1d712a92a9',
hashlib.md5(d).hexdigest(), 'Adding a section (64 bits)')
e = MACHO(macho_64)
e.add(type=macho.LC_SEGMENT_64,
segname='__NEWTEXT',
initprot=macho.VM_PROT_READ | macho.VM_PROT_EXECUTE,
content='some binary data'.encode('latin1'))
d = e.pack()
assertion('b4ad381503c51b6dc9dc3d79fb8ca568',
hashlib.md5(d).hexdigest(), 'Adding a segment (64 bits)')
def test_MACHO_virt(assertion):
macho_32 = open(__dir__ + 'macho_32.out', 'rb').read()
e = MACHO(macho_32)
d = e.virt[0x1f9c:0x1fae]
assertion('structure definie\0', d.decode('latin1'),
'Extract chunk from mapped memory, in a section (32 bits)')
e.virt[0x1f9c] = 'Hello World\0'.encode('latin1')
d = e.pack()
assertion('16db05dfe60b5ac86c45d8324ef5cfc6',
hashlib.md5(d).hexdigest(),
'Writing in memory (address) (32 bits)')
e.virt[0x1f9c:0x1fa8] = 'Hello World\0'.encode('latin1')
d = e.pack()
assertion('16db05dfe60b5ac86c45d8324ef5cfc6',
hashlib.md5(d).hexdigest(),
'Writing in memory (interval) (32 bits)')
e.add(
macho.Section(parent=macho.sectionHeader(parent=e.load),
content='arbitrary content'.encode('latin1')))
d = e.pack()
assertion('b61b686819bd3c94e765b220ef708353',
hashlib.md5(d).hexdigest(), 'Adding a section (32 bits)')
def test_MACHO_prebind_32(assertion):
global log_history
macho_32 = open(__dir__ + 'macho_32.out', 'rb').read()
e = MACHO(macho_32)
e.add(macho.LoadCommand(sex='<', wsize=32, cmd=0))
d = e.pack()
assertion('6fefeaf7b4de67f8270d3425942d7a97',
hashlib.md5(d).hexdigest(), 'Adding an empty command (32 bits)')
f = struct.pack("<III", macho.LC_ROUTINES_64, 12, 0)
l = macho.prebind_cksum_command(parent=None, sex='<', wsize=32, content=f)
assertion(
[('warn', ('Incoherent input cmd=%#x for %s', 26,
'prebind_cksum_command'), {})], log_history,
'Parsing incoherent load command prebind_cksum_command with LC_ROUTINES_64 tag (logs)'
)
log_history = []
assertion(
f, l.pack(),
'Creating a LC_PREBIND_CKSUM (with content and incoherent subclass)')
f = struct.pack("<III", macho.LC_PREBIND_CKSUM, 12, 0)
l = macho.prebind_cksum_command(parent=None, sex='<', wsize=32, content=f)
assertion(f, l.pack(),
'Creating a LC_PREBIND_CKSUM (with content and subclass)')
l = macho.LoadCommand(parent=None, sex='<', wsize=32, content=f)
assertion(f, l.pack(), 'Creating a LC_PREBIND_CKSUM (from "content")')
l = macho.LoadCommand(sex='<', wsize=32, cmd=macho.LC_PREBIND_CKSUM)
assertion(f, l.pack(), 'Creating a LC_PREBIND_CKSUM (from "cmd")')
e = MACHO(macho_32)
e.add(l)
d = e.pack()
assertion('d7a33133a04126527eb6d270990092fa',
hashlib.md5(d).hexdigest(), 'Adding a LC_PREBIND_CKSUM command')
e = MACHO(macho_32)
e.add(type=macho.LC_SEGMENT,
segname='__NEWTEXT',
initprot=macho.VM_PROT_READ | macho.VM_PROT_EXECUTE,
content='some binary data'.encode('latin1'))
d = e.pack()
assertion('c4ad6da5422642cb15b91ccd3a09f592',
hashlib.md5(d).hexdigest(), 'Adding a segment (32 bits)')