def test_bad_ipv6_prefix_length(self):
S46RuleOption.parse(bytes.fromhex('00590020011020010203008020010db8000000000000000000000000ffff0000fffe0000'))
with self.assertRaisesRegex(ValueError, 'range from 0 to 128'):
S46RuleOption.parse(
bytes.fromhex('00590021011020010203008120010db800000000000000000000000000ffff0000fffe0000')
)
def test_bad_ipv4_prefix_length(self):
S46RuleOption.parse(
bytes.fromhex(
'00590015011020010203002220010db800ffff0000fffe0000'))
with self.assertRaisesRegex(ValueError, 'range from 0 to 32'):
S46RuleOption.parse(
bytes.fromhex(
'00590015011021010203002220010db800ffff0000fffe0000'))
def test_bad_option_length(self):
with self.assertRaisesRegex(ValueError,
'shorter than the minimum length'):
S46RuleOption.parse(
bytes.fromhex(
'00590000011018010203002220010db800ffff0000fffe0000'))
with self.assertRaisesRegex(ValueError, 'length does not match'):
S46RuleOption.parse(
bytes.fromhex(
'00590014011018010203002220010db800ffff0000fffe0000'))
def create(self) -> S46RuleOption:
"""
Create a MAP rule option based on the configuration.
:return: The mapping rule
"""
option = S46RuleOption(
ea_len=self.ea_len,
ipv4_prefix=self.ipv4_prefix,
ipv6_prefix=self.ipv6_prefix,
options=[S46PortParametersOption(offset=self.a_bits)])
option.fmr = self.forwarding_mapping
return option
psid=127)
# S46RuleOption
s46_rule_option_bytes = (
bytes.fromhex('0059' # option_type: OPTION_S46_RULE
'0015' # option_length
'01' # flags
'10' # ea_len
'18' # ipv4_prefix_len
'01020300' # ipv4_prefix
'22' # ipv6_prefix_len
'20010db800') # ipv6_prefix
+ s46_port_parameters_option_bytes)
s46_rule_option_object = S46RuleOption(
flags=1,
ea_len=16,
ipv4_prefix=IPv4Network('1.2.3.0/24'),
ipv6_prefix=IPv6Network('2001:db8::/34'),
options=[s46_port_parameters_option_object])
# S46BROption
s46_br_option_bytes = bytes.fromhex(
'005a' # option_type: OPTION_S46_BR
'0010' # option_length
'20010db8000000000000000000000001') # 2001:db8::1
s46_br_option_object = S46BROption(br_address=IPv6Address('2001:db8::1'))
# S46DMROption
s46_dmr_option_bytes = bytes.fromhex('005b' # option_type: OPTION_S46_DMR
'0006' # option_length
'21' # prefix_len
'20010db800') # 2001:db8::1
def test_bad_option_length(self):
with self.assertRaisesRegex(ValueError, 'shorter than the minimum length'):
S46RuleOption.parse(bytes.fromhex('00590000011018010203002220010db800ffff0000fffe0000'))
with self.assertRaisesRegex(ValueError, 'length does not match'):
S46RuleOption.parse(bytes.fromhex('00590014011018010203002220010db800ffff0000fffe0000'))