diff options
Diffstat (limited to 'test/vpp_interface.py')
| -rw-r--r-- | test/vpp_interface.py | 155 |
1 files changed, 54 insertions, 101 deletions
diff --git a/test/vpp_interface.py b/test/vpp_interface.py index 509ab952236..d74248a39b3 100644 --- a/test/vpp_interface.py +++ b/test/vpp_interface.py @@ -1,9 +1,8 @@ from abc import abstractmethod, ABCMeta import socket -from logging import info, error -from scapy.layers.l2 import Ether, ARP +from logging import info -from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, ICMPv6ND_NA, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptDstLLAddr +from util import Host class VppInterface(object): @@ -20,7 +19,7 @@ class VppInterface(object): @property def remote_mac(self): """MAC-address of the remote interface "connected" to this interface""" - return self._remote_mac + return self._remote_hosts[0].mac @property def local_mac(self): @@ -35,17 +34,17 @@ class VppInterface(object): @property def local_ip4n(self): """Local IPv4 address - raw, suitable as API parameter""" - return self._local_ip4n + return socket.inet_pton(socket.AF_INET, self._local_ip4) @property def remote_ip4(self): """IPv4 address of remote peer "connected" to this interface""" - return self._remote_ip4 + return self._remote_hosts[0].ip4 @property def remote_ip4n(self): """IPv4 address of remote peer - raw, suitable as API parameter""" - return self._remote_ip4n + return socket.inet_pton(socket.AF_INET, self.remote_ip4) @property def local_ip6(self): @@ -55,17 +54,17 @@ class VppInterface(object): @property def local_ip6n(self): """Local IPv6 address - raw, suitable as API parameter""" - return self._local_ip6n + return socket.inet_pton(socket.AF_INET6, self.local_ip6) @property def remote_ip6(self): """IPv6 address of remote peer "connected" to this interface""" - return self._remote_ip6 + return self._remote_hosts[0].ip6 @property def remote_ip6n(self): """IPv6 address of remote peer - raw, suitable as API parameter""" - return self._remote_ip6n + return socket.inet_pton(socket.AF_INET6, self.remote_ip6) @property def name(self): @@ -82,19 +81,51 @@ class VppInterface(object): """Test case creating this interface""" return self._test + @property + def remote_hosts(self): + """Remote hosts list""" + return self._remote_hosts + + @remote_hosts.setter + def remote_hosts(self, value): + self._remote_hosts = value + #TODO: set hosts_by dicts + + def host_by_mac(self, mac): + return self._hosts_by_mac[mac] + + def host_by_ip4(self, ip): + return self._hosts_by_ip4[ip] + + def host_by_ip6(self, ip): + return self._hosts_by_ip6[ip] + + def generate_remote_hosts(self, count=1): + """Generate and add remote hosts for the interface.""" + self._remote_hosts = [] + self._hosts_by_mac = {} + self._hosts_by_ip4 = {} + self._hosts_by_ip6 = {} + for i in range(2, count+2): # 0: network address, 1: local vpp address + mac = "02:%02x:00:00:ff:%02x" % (self.sw_if_index, i) + ip4 = "172.16.%u.%u" % (self.sw_if_index, i) + ip6 = "fd01:%04x::%04x" % (self.sw_if_index, i) + host = Host(mac, ip4, ip6) + self._remote_hosts.append(host) + self._hosts_by_mac[mac] = host + self._hosts_by_ip4[ip4] = host + self._hosts_by_ip6[ip6] = host + def post_init_setup(self): """Additional setup run after creating an interface object""" - self._remote_mac = "02:00:00:00:ff:%02x" % self.sw_if_index + + self.generate_remote_hosts() self._local_ip4 = "172.16.%u.1" % self.sw_if_index self._local_ip4n = socket.inet_pton(socket.AF_INET, self.local_ip4) - self._remote_ip4 = "172.16.%u.2" % self.sw_if_index - self._remote_ip4n = socket.inet_pton(socket.AF_INET, self.remote_ip4) - self._local_ip6 = "fd01:%u::1" % self.sw_if_index + self._local_ip6 = "fd01:%04x::1" % self.sw_if_index self._local_ip6n = socket.inet_pton(socket.AF_INET6, self.local_ip6) - self._remote_ip6 = "fd01:%u::2" % self.sw_if_index - self._remote_ip6n = socket.inet_pton(socket.AF_INET6, self.remote_ip6) r = self.test.vapi.sw_interface_dump() for intf in r: @@ -124,6 +155,13 @@ class VppInterface(object): self.test.vapi.sw_interface_add_del_address( self.sw_if_index, addr, addr_len) + def configure_extend_ipv4_mac_binding(self): + """Configure neighbor MAC to IPv4 addresses.""" + for host in self._remote_hosts: + macn = host.mac.replace(":", "").decode('hex') + ipn = host.ip4n + self.test.vapi.ip_neighbor_add_del(self.sw_if_index, macn, ipn) + def config_ip6(self): """Configure IPv6 address on the VPP interface""" addr = self._local_ip6n @@ -147,91 +185,6 @@ class VppInterface(object): """Configure IPv6 RA suppress on the VPP interface""" self.test.vapi.sw_interface_ra_suppress(self.sw_if_index) - def create_arp_req(self): - """Create ARP request applicable for this interface""" - return (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.remote_mac) / - ARP(op=ARP.who_has, pdst=self.local_ip4, - psrc=self.remote_ip4, hwsrc=self.remote_mac)) - - def create_ndp_req(self): - return (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.remote_mac) / - IPv6(src=self.remote_ip6, dst=self.local_ip6) / - ICMPv6ND_NS(tgt=self.local_ip6) / - ICMPv6NDOptSrcLLAddr(lladdr=self.remote_mac)) - - def resolve_arp(self, pg_interface=None): - """Resolve ARP using provided packet-generator interface - - :param pg_interface: interface used to resolve, if None then this - interface is used - - """ - if pg_interface is None: - pg_interface = self - info("Sending ARP request for %s on port %s" % - (self.local_ip4, pg_interface.name)) - arp_req = self.create_arp_req() - pg_interface.add_stream(arp_req) - pg_interface.enable_capture() - self.test.pg_start() - info(self.test.vapi.cli("show trace")) - arp_reply = pg_interface.get_capture() - if arp_reply is None or len(arp_reply) == 0: - info("No ARP received on port %s" % pg_interface.name) - return - arp_reply = arp_reply[0] - # Make Dot1AD packet content recognizable to scapy - if arp_reply.type == 0x88a8: - arp_reply.type = 0x8100 - arp_reply = Ether(str(arp_reply)) - try: - if arp_reply[ARP].op == ARP.is_at: - info("VPP %s MAC address is %s " % - (self.name, arp_reply[ARP].hwsrc)) - self._local_mac = arp_reply[ARP].hwsrc - else: - info("No ARP received on port %s" % pg_interface.name) - except: - error("Unexpected response to ARP request:") - error(arp_reply.show()) - raise - - def resolve_ndp(self, pg_interface=None): - """Resolve NDP using provided packet-generator interface - - :param pg_interface: interface used to resolve, if None then this - interface is used - - """ - if pg_interface is None: - pg_interface = self - info("Sending NDP request for %s on port %s" % - (self.local_ip6, pg_interface.name)) - ndp_req = self.create_ndp_req() - pg_interface.add_stream(ndp_req) - pg_interface.enable_capture() - self.test.pg_start() - info(self.test.vapi.cli("show trace")) - ndp_reply = pg_interface.get_capture() - if ndp_reply is None or len(ndp_reply) == 0: - info("No NDP received on port %s" % pg_interface.name) - return - ndp_reply = ndp_reply[0] - # Make Dot1AD packet content recognizable to scapy - if ndp_reply.type == 0x88a8: - ndp_reply.type = 0x8100 - ndp_reply = Ether(str(ndp_reply)) - try: - ndp_na = ndp_reply[ICMPv6ND_NA] - opt = ndp_na[ICMPv6NDOptDstLLAddr] - info("VPP %s MAC address is %s " % - (self.name, opt.lladdr)) - self._local_mac = opt.lladdr - except: - error("Unexpected response to NDP request:") - error(ndp_reply.show()) - raise - def admin_up(self): """ Put interface ADMIN-UP """ self.test.vapi.sw_interface_set_flags(self.sw_if_index, admin_up_down=1) |