def __init__(self, *args, **kwargs):
super(VRRPInterfaceMonitorNetworkDevice, self).__init__(*args,
**kwargs)
self.__is_active = True
config = self.config
if config.is_ipv6:
family = socket.AF_INET6
ether_type = ether.ETH_TYPE_IPV6
mac_address = vrrp.vrrp_ipv6_src_mac_address(config.vrid)
else:
family = socket.AF_INET
ether_type = ether.ETH_TYPE_IP
mac_address = vrrp.vrrp_ipv4_src_mac_address(config.vrid)
# socket module doesn't define IPPROTO_VRRP
self.ip_socket = socket.socket(family, socket.SOCK_RAW,
inet.IPPROTO_VRRP)
self.packet_socket = socket.socket(socket.AF_PACKET, socket.SOCK_RAW,
socket.htons(ether_type))
self.packet_socket.bind((self.interface.device_name, ether_type,
socket.PACKET_MULTICAST,
arp.ARP_HW_TYPE_ETHERNET,
addrconv.mac.text_to_bin(mac_address)))
self.ifindex = if_nametoindex(self.interface.device_name)
def __init__(self, *args, **kwargs):
super(VRRPInterfaceMonitorNetworkDevice, self).__init__(*args,
**kwargs)
self.__is_active = True
config = self.config
if config.is_ipv6:
family = socket.AF_INET6
ether_type = ether.ETH_TYPE_IPV6
mac_address = vrrp.vrrp_ipv6_src_mac_address(config.vrid)
else:
family = socket.AF_INET
ether_type = ether.ETH_TYPE_IP
mac_address = vrrp.vrrp_ipv4_src_mac_address(config.vrid)
# socket module doesn't define IPPROTO_VRRP
self.ip_socket = socket.socket(family, socket.SOCK_RAW,
inet.IPPROTO_VRRP)
self.packet_socket = socket.socket(socket.AF_PACKET, socket.SOCK_RAW,
socket.htons(ether_type))
self.packet_socket.bind((self.interface.device_name, ether_type,
socket.PACKET_MULTICAST,
arp.ARP_HW_TYPE_ETHERNET,
addrconv.mac.text_to_bin(mac_address)))
self.ifindex = if_nametoindex(self.interface.device_name)
def _join_multicast_membership(self, join_leave):
config = self.config
if config.is_ipv6:
mac_address = vrrp.vrrp_ipv6_src_mac_address(config.vrid)
else:
mac_address = vrrp.vrrp_ipv4_src_mac_address(config.vrid)
if join_leave:
add_drop = PACKET_ADD_MEMBERSHIP
else:
add_drop = PACKET_DROP_MEMBERSHIP
packet_mreq = struct.pack('IHH8s', self.ifindex,
PACKET_MR_MULTICAST, 6,
addrconv.mac.text_to_bin(mac_address))
self.packet_socket.setsockopt(SOL_PACKET, add_drop, packet_mreq)
def _join_multicast_membership(self, join_leave):
config = self.config
if config.is_ipv6:
mac_address = vrrp.vrrp_ipv6_src_mac_address(config.vrid)
else:
mac_address = vrrp.vrrp_ipv4_src_mac_address(config.vrid)
if join_leave:
add_drop = PACKET_ADD_MEMBERSHIP
else:
add_drop = PACKET_DROP_MEMBERSHIP
# struct packet_mreq {
# int mr_ifindex;
# unsigned short mr_type;
# unsigned short mr_alen;
# unsigned char mr_mr_address[8];
# };
packet_mreq = struct.pack('IHH8s', self.ifindex, PACKET_MR_MULTICAST,
6, addrconv.mac.text_to_bin(mac_address))
self.packet_socket.setsockopt(SOL_PACKET, add_drop, packet_mreq)
def _ofp_match(self, ofproto_parser):
is_ipv6 = vrrp.is_ipv6(self.config.ip_addresses[0])
kwargs = {}
kwargs['in_port'] = self.interface.port_no
if is_ipv6:
kwargs['eth_dst'] = vrrp.VRRP_IPV6_DST_MAC_ADDRESS
kwargs['eth_src'] = \
vrrp.vrrp_ipv6_src_mac_address(self.config.vrid)
kwargs['eth_type'] = ether.ETH_TYPE_IPV6
kwargs['ipv6_dst'] = vrrp.VRRP_IPV6_DST_ADDRESS
else:
kwargs['eth_dst'] = vrrp.VRRP_IPV4_DST_MAC_ADDRESS
kwargs['eth_src'] = \
vrrp.vrrp_ipv4_src_mac_address(self.config.vrid)
kwargs['eth_type'] = ether.ETH_TYPE_IP
kwargs['ipv4_dst'] = vrrp.VRRP_IPV4_DST_ADDRESS
if self.interface.vlan_id is not None:
kwargs['vlan_vid'] = self.interface.vlan_id
kwargs['ip_proto'] = inet.IPPROTO_VRRP
# OF1.2 doesn't support TTL match.
# It needs to be checked by packet in handler
return ofproto_parser.OFPMatch(**kwargs)
def _ofp_match(self, ofproto_parser):
is_ipv6 = vrrp.is_ipv6(self.config.ip_addresses[0])
kwargs = {}
kwargs['in_port'] = self.interface.port_no
if is_ipv6:
kwargs['eth_dst'] = vrrp.VRRP_IPV6_DST_MAC_ADDRESS
kwargs['eth_src'] = \
vrrp.vrrp_ipv6_src_mac_address(self.config.vrid)
kwargs['eth_type'] = ether.ETH_TYPE_IPV6
kwargs['ipv6_dst'] = vrrp.VRRP_IPV6_DST_ADDRESS
else:
kwargs['eth_dst'] = vrrp.VRRP_IPV4_DST_MAC_ADDRESS
kwargs['eth_src'] = \
vrrp.vrrp_ipv4_src_mac_address(self.config.vrid)
kwargs['eth_type'] = ether.ETH_TYPE_IP
kwargs['ipv4_dst'] = vrrp.VRRP_IPV4_DST_ADDRESS
if self.interface.vlan_id is not None:
kwargs['vlan_vid'] = self.interface.vlan_id
kwargs['ip_proto'] = inet.IPPROTO_VRRP
# OF1.2 doesn't support TTL match.
# It needs to be checked by packet in handler
return ofproto_parser.OFPMatch(**kwargs)
