diff options
| -rw-r--r-- | python/vyos/ifconfig/tunnel.py | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/python/vyos/ifconfig/tunnel.py b/python/vyos/ifconfig/tunnel.py index 4122d1a2f..926d66c18 100644 --- a/python/vyos/ifconfig/tunnel.py +++ b/python/vyos/ifconfig/tunnel.py @@ -22,6 +22,10 @@ from vyos.ifconfig.interface import Interface from vyos.ifconfig.afi import IP4, IP6 from vyos.validate import assert_list +import random +from random import seed, getrandbits +from ipaddress import IPv6Network, IPv6Address + def enable_to_on(value): if value == 'enable': return 'on' @@ -122,6 +126,16 @@ class _Tunnel(Interface): @classmethod def get_config(cls): return dict(zip(cls.options, ['']*len(cls.options))) + + def generate_link_local(): + # Linux Kernel does not generate IPv6 Link Local address do to missing MAC + # We have to generate address manually and assign to interface + net = IPv6Network("FE80::/16") + rand_net = IPv6Network((net.network_address + (random.getrandbits(64 - net.prefixlen) << 64 ),64)) + network = IPv6Network(rand_net) + address = str(IPv6Address(network.network_address + getrandbits(network.max_prefixlen - network.prefixlen)))+'/'+str(network.prefixlen) + + return address class GREIf(_Tunnel): @@ -154,6 +168,12 @@ class GREIf(_Tunnel): create = 'ip tunnel add {ifname} mode {type}' change = 'ip tunnel cha {ifname}' delete = 'ip tunnel del {ifname}' + + + def _create(self): + super()._create(self) + # Assign generated IPv6 Link Local address to the interface + self.add_addr(self.generate_link_local()) # GreTap also called GRE Bridge @@ -219,6 +239,11 @@ class IP6GREIf(_Tunnel): # sudo ip tunnel cha tun100 local: : 2 # Error: an IP address is expected rather than "::2" # works if mode is explicit + + def _create(self): + super()._create(self) + # Assign generated IPv6 Link Local address to the interface + self.add_addr(self.generate_link_local()) class IPIPIf(_Tunnel): @@ -270,6 +295,11 @@ class IPIP6If(_Tunnel): create = 'ip -6 tunnel add {ifname} mode {type}' change = 'ip -6 tunnel cha {ifname}' delete = 'ip -6 tunnel del {ifname}' + + def _create(self): + super()._create(self) + # Assign generated IPv6 Link Local address to the interface + self.add_addr(self.generate_link_local()) class IP6IP6If(IPIP6If): @@ -283,6 +313,11 @@ class IP6IP6If(IPIP6If): ip = [IP6,] default = {'type': 'ip6ip6'} + + def _create(self): + super()._create(self) + # Assign generated IPv6 Link Local address to the interface + self.add_addr(self.generate_link_local()) class SitIf(_Tunnel): @@ -306,6 +341,11 @@ class SitIf(_Tunnel): create = 'ip tunnel add {ifname} mode {type}' change = 'ip tunnel cha {ifname}' delete = 'ip tunnel del {ifname}' + + def _create(self): + super()._create(self) + # Assign generated IPv6 Link Local address to the interface + self.add_addr(self.generate_link_local()) class Sit6RDIf(SitIf): |