X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Futil.py;h=3e0267a3f4db2b509d8eb1216d2588a12448ff4f;hb=62fe07c8e30a6ac718fe65528592fe6964d753fa;hp=d6b77f9d3c3e90756b087f419cadab49e6b0ba07;hpb=39f9d8bd226ab5aa366f181a5cbf7c873f599e06;p=vpp.git

diff --git a/test/util.py b/test/util.py
index d6b77f9d3c3..3e0267a3f4d 100644
--- a/test/util.py
+++ b/test/util.py
@@ -4,6 +4,14 @@ import socket
 import sys
 from abc import abstractmethod, ABCMeta
 from cStringIO import StringIO
+from scapy.layers.inet6 import in6_mactoifaceid
+
+from scapy.layers.l2 import Ether
+from scapy.packet import Raw
+from scapy.layers.inet import IP, UDP, TCP
+from scapy.layers.inet6 import IPv6, ICMPv6Unknown, ICMPv6EchoRequest
+from scapy.packet import Packet
+from socket import inet_pton, AF_INET, AF_INET6
 
 
 def ppp(headline, packet):
@@ -52,6 +60,12 @@ def mactobinary(mac):
     return mac.replace(':', '').decode('hex')
 
 
+def mk_ll_addr(mac):
+    euid = in6_mactoifaceid(mac)
+    addr = "fe80::" + euid
+    return addr
+
+
 class NumericConstant(object):
     __metaclass__ = ABCMeta
 
@@ -81,6 +95,11 @@ class Host(object):
         """ MAC address """
         return self._mac
 
+    @property
+    def bin_mac(self):
+        """ MAC address """
+        return mactobinary(self._mac)
+
     @property
     def ip4(self):
         """ IPv4 address - string """
@@ -101,10 +120,43 @@ class Host(object):
         """ IPv6 address of remote host - raw, suitable as API parameter."""
         return socket.inet_pton(socket.AF_INET6, self._ip6)
 
-    def __init__(self, mac=None, ip4=None, ip6=None):
+    @property
+    def ip6_ll(self):
+        """ IPv6 link-local address - string """
+        return self._ip6_ll
+
+    @property
+    def ip6n_ll(self):
+        """ IPv6 link-local address of remote host -
+        raw, suitable as API parameter."""
+        return socket.inet_pton(socket.AF_INET6, self._ip6_ll)
+
+    def __eq__(self, other):
+        if isinstance(other, Host):
+            return (self.mac == other.mac and
+                    self.ip4 == other.ip4 and
+                    self.ip6 == other.ip6 and
+                    self.ip6_ll == other.ip6_ll)
+        else:
+            return False
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def __repr__(self):
+        return "Host { mac:%s ip4:%s ip6:%s ip6_ll:%s }" % (self.mac,
+                                                            self.ip4,
+                                                            self.ip6,
+                                                            self.ip6_ll)
+
+    def __hash__(self):
+        return hash(self.__repr__())
+
+    def __init__(self, mac=None, ip4=None, ip6=None, ip6_ll=None):
         self._mac = mac
         self._ip4 = ip4
         self._ip6 = ip6
+        self._ip6_ll = ip6_ll
 
 
 class ForeignAddressFactory(object):
@@ -118,3 +170,62 @@ class ForeignAddressFactory(object):
             raise Exception("Network host address exhaustion")
         self.count += 1
         return self.net_template.format(self.count)
+
+
+class L4_Conn():
+    """ L4 'connection' tied to two VPP interfaces """
+    def __init__(self, testcase, if1, if2, af, l4proto, port1, port2):
+        self.testcase = testcase
+        self.ifs = [None, None]
+        self.ifs[0] = if1
+        self.ifs[1] = if2
+        self.address_family = af
+        self.l4proto = l4proto
+        self.ports = [None, None]
+        self.ports[0] = port1
+        self.ports[1] = port2
+        self
+
+    def pkt(self, side, l4args={}, payload="x"):
+        is_ip6 = 1 if self.address_family == AF_INET6 else 0
+        s0 = side
+        s1 = 1-side
+        src_if = self.ifs[s0]
+        dst_if = self.ifs[s1]
+        layer_3 = [IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4),
+                   IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6)]
+        merged_l4args = {'sport': self.ports[s0], 'dport': self.ports[s1]}
+        merged_l4args.update(l4args)
+        p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+             layer_3[is_ip6] /
+             self.l4proto(**merged_l4args) /
+             Raw(payload))
+        return p
+
+    def send(self, side, flags=None, payload=""):
+        l4args = {}
+        if flags is not None:
+            l4args['flags'] = flags
+        self.ifs[side].add_stream(self.pkt(side,
+                                           l4args=l4args, payload=payload))
+        self.ifs[1-side].enable_capture()
+        self.testcase.pg_start()
+
+    def recv(self, side):
+        p = self.ifs[side].wait_for_packet(1)
+        return p
+
+    def send_through(self, side, flags=None, payload=""):
+        self.send(side, flags, payload)
+        p = self.recv(1-side)
+        return p
+
+    def send_pingpong(self, side, flags1=None, flags2=None):
+        p1 = self.send_through(side, flags1)
+        p2 = self.send_through(1-side, flags2)
+        return [p1, p2]
+
+
+class L4_CONN_SIDE:
+    L4_CONN_SIDE_ZERO = 0
+    L4_CONN_SIDE_ONE = 1