def test_1_write(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(wsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) encryptor = Cipher(algorithms.AES(zero_byte * 16), modes.CBC(x55 * 16), backend=default_backend()).encryptor() p.set_outbound_cipher(encryptor, 16, sha1, 12, x1f * 20) # message has to be at least 16 bytes long, so we'll have at least one # block of data encrypted that contains zero random padding bytes m = Message() m.add_byte(byte_chr(100)) m.add_int(100) m.add_int(1) m.add_int(900) p.send_message(m) data = rsock.recv(100) # 32 + 12 bytes of MAC = 44 self.assertEqual(44, len(data)) self.assertEqual( b'\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0', data[:16])
def test_1_write(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(wsock) p.set_log(util.get_logger("paramiko.transport")) p.set_hexdump(True) encryptor = Cipher( algorithms.AES(zero_byte * 16), modes.CBC(x55 * 16), backend=default_backend(), ).encryptor() p.set_outbound_cipher(encryptor, 16, sha1, 12, x1f * 20) # message has to be at least 16 bytes long, so we'll have at least one # block of data encrypted that contains zero random padding bytes m = Message() m.add_byte(byte_chr(100)) m.add_int(100) m.add_int(1) m.add_int(900) p.send_message(m) data = rsock.recv(100) # 32 + 12 bytes of MAC = 44 self.assertEqual(44, len(data)) self.assertEqual( b"\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0", data[:16], )
def test_1_write(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(wsock) p.set_log(util.get_logger("paramiko.transport")) p.set_hexdump(True) cipher = AES.new(b"\x00" * 16, AES.MODE_CBC, b"\x55" * 16) p.set_outbound_cipher(cipher, 16, SHA, 12, b"\x1f" * 20) # message has to be at least 16 bytes long, so we'll have at least one # block of data encrypted that contains zero random padding bytes m = Message() m.add_byte(chr(100).encode()) m.add_int(100) m.add_int(1) m.add_int(900) p.send_message(m) data = rsock.recv(100) # 32 + 12 bytes of MAC = 44 self.assertEquals(44, len(data)) self.assertEquals(b"\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0", data[:16])
def test_3_closed(self): if sys.platform.startswith("win"): # no SIGALRM on windows return rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(wsock) p.set_log(util.get_logger("paramiko.transport")) p.set_hexdump(True) encryptor = Cipher( algorithms.AES(zero_byte * 16), modes.CBC(x55 * 16), backend=default_backend(), ).encryptor() p.set_outbound_cipher(encryptor, 16, sha1, 12, x1f * 20) # message has to be at least 16 bytes long, so we'll have at least one # block of data encrypted that contains zero random padding bytes m = Message() m.add_byte(byte_chr(100)) m.add_int(100) m.add_int(1) m.add_int(900) wsock.send = lambda x: 0 from functools import wraps import errno import os import signal class TimeoutError(Exception): def __init__(self, error_message): if hasattr(errno, "ETIME"): self.message = os.sterror(errno.ETIME) else: self.messaage = error_message def timeout(seconds=1, error_message="Timer expired"): def decorator(func): def _handle_timeout(signum, frame): raise TimeoutError(error_message) def wrapper(*args, **kwargs): signal.signal(signal.SIGALRM, _handle_timeout) signal.alarm(seconds) try: result = func(*args, **kwargs) finally: signal.alarm(0) return result return wraps(func)(wrapper) return decorator send = timeout()(p.send_message) self.assertRaises(EOFError, send, m)
def test_2_read(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) cipher = AES.new(zero_byte * 16, AES.MODE_CBC, x55 * 16) p.set_inbound_cipher(cipher, 16, sha1, 12, x1f * 20) wsock.send(b'\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0\x90\xd2\x16\x56\x0d\x71\x73\x61\x38\x7c\x4c\x3d\xfb\x97\x7d\xe2\x6e\x03\xb1\xa0\xc2\x1c\xd6\x41\x41\x4c\xb4\x59') cmd, m = p.read_message() self.assertEqual(100, cmd) self.assertEqual(100, m.get_int()) self.assertEqual(1, m.get_int()) self.assertEqual(900, m.get_int())
def test_2_read(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) cipher = AES.new(zero_byte * 16, AES.MODE_CBC, x55 * 16) p.set_inbound_cipher(cipher, 16, SHA, 12, x1f * 20) wsock.send( b'\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0\x90\xd2\x16\x56\x0d\x71\x73\x61\x38\x7c\x4c\x3d\xfb\x97\x7d\xe2\x6e\x03\xb1\xa0\xc2\x1c\xd6\x41\x41\x4c\xb4\x59' ) cmd, m = p.read_message() self.assertEqual(100, cmd) self.assertEqual(100, m.get_int()) self.assertEqual(1, m.get_int()) self.assertEqual(900, m.get_int())
def test_2_read (self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) cipher = AES.new('\x00' * 16, AES.MODE_CBC, '\x55' * 16) p.set_inbound_cipher(cipher, 16, SHA, 12, '\x1f' * 20) wsock.send('C\x91\x97\xbd[P\xac%\x87\xc2\xc4k\xc7\xe98\xc0' + \ '\x90\xd2\x16V\rqsa8|L=\xfb\x97}\xe2n\x03\xb1\xa0\xc2\x1c\xd6AAL\xb4Y') cmd, m = p.read_message() self.assertEquals(100, cmd) self.assertEquals(100, m.get_int()) self.assertEquals(1, m.get_int()) self.assertEquals(900, m.get_int())
def test_2_read(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) cipher = AES.new('\x00' * 16, AES.MODE_CBC, '\x55' * 16) p.set_inbound_cipher(cipher, 16, SHA, 12, '\x1f' * 20) wsock.send('C\x91\x97\xbd[P\xac%\x87\xc2\xc4k\xc7\xe98\xc0' + \ '\x90\xd2\x16V\rqsa8|L=\xfb\x97}\xe2n\x03\xb1\xa0\xc2\x1c\xd6AAL\xb4Y') cmd, m = p.read_message() self.assertEquals(100, cmd) self.assertEquals(100, m.get_int()) self.assertEquals(1, m.get_int()) self.assertEquals(900, m.get_int())
def test_2_read(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger("paramiko.transport")) p.set_hexdump(True) decryptor = Cipher(algorithms.AES(zero_byte * 16), modes.CBC(x55 * 16), backend=default_backend()).decryptor() p.set_inbound_cipher(decryptor, 16, sha1, 12, x1f * 20) wsock.send( b"\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0\x90\xd2\x16\x56\x0d\x71\x73\x61\x38\x7c\x4c\x3d\xfb\x97\x7d\xe2\x6e\x03\xb1\xa0\xc2\x1c\xd6\x41\x41\x4c\xb4\x59" ) cmd, m = p.read_message() self.assertEqual(100, cmd) self.assertEqual(100, m.get_int()) self.assertEqual(1, m.get_int()) self.assertEqual(900, m.get_int())
def test_3_closed(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(wsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) cipher = AES.new(zero_byte * 16, AES.MODE_CBC, x55 * 16) p.set_outbound_cipher(cipher, 16, sha1, 12, x1f * 20) # message has to be at least 16 bytes long, so we'll have at least one # block of data encrypted that contains zero random padding bytes m = Message() m.add_byte(byte_chr(100)) m.add_int(100) m.add_int(1) m.add_int(900) wsock.send = lambda x: 0 from functools import wraps import errno import os import signal class TimeoutError(Exception): pass def timeout(seconds=1, error_message=os.strerror(errno.ETIME)): def decorator(func): def _handle_timeout(signum, frame): raise TimeoutError(error_message) def wrapper(*args, **kwargs): signal.signal(signal.SIGALRM, _handle_timeout) signal.alarm(seconds) try: result = func(*args, **kwargs) finally: signal.alarm(0) return result return wraps(func)(wrapper) return decorator send = timeout()(p.send_message) self.assertRaises(EOFError, send, m)
def test_4_read_exception(self): """ assert that the Packetizer raises an SSHException when receiving mangled input """ rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) decryptor = Cipher(algorithms.AES(zero_byte * 16), modes.CBC(x55 * 16), backend=default_backend()).decryptor() p.set_inbound_cipher(decryptor, 16, sha1, 12, x1f * 20) wsock.send( b'\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43\x43' ) self.assertRaises(SSHException, p.read_message)
def test_2_read(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(rsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) decryptor = Cipher(algorithms.AES(zero_byte * 16), modes.CBC(x55 * 16), backend=default_backend()).decryptor() p.set_inbound_cipher(decryptor, 16, sha1, 12, x1f * 20) wsock.send( b'\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0\x90\xd2\x16\x56\x0d\x71\x73\x61\x38\x7c\x4c\x3d\xfb\x97\x7d\xe2\x6e\x03\xb1\xa0\xc2\x1c\xd6\x41\x41\x4c\xb4\x59' ) cmd, m = p.read_message() self.assertEqual(100, cmd) self.assertEqual(100, m.get_int()) self.assertEqual(1, m.get_int()) self.assertEqual(900, m.get_int())
def test_1_write(self): rsock = LoopSocket() wsock = LoopSocket() rsock.link(wsock) p = Packetizer(wsock) p.set_log(util.get_logger('paramiko.transport')) p.set_hexdump(True) cipher = AES.new('\x00' * 16, AES.MODE_CBC, '\x55' * 16) p.set_outbound_cipher(cipher, 16, SHA, 12, '\x1f' * 20) # message has to be at least 16 bytes long, so we'll have at least one # block of data encrypted that contains zero random padding bytes m = Message() m.add_byte(chr(100)) m.add_int(100) m.add_int(1) m.add_int(900) p.send_message(m) data = rsock.recv(100) # 32 + 12 bytes of MAC = 44 self.assertEquals(44, len(data)) self.assertEquals( '\x43\x91\x97\xbd\x5b\x50\xac\x25\x87\xc2\xc4\x6b\xc7\xe9\x38\xc0', data[:16])