diff options
| author |   Ole Troan <ot@cisco.com> | 2019-10-09 13:33:19 +0200 |
|---|---|---|
| committer |   Neale Ranns <nranns@cisco.com> | 2019-11-11 12:33:36 +0000 |
| commit | eb284a1f8f10d752285a0a59e75bc54acae50779 (patch) | |
| tree | 4ce777b223a51fa70f9e0dc18e7842b488b81cd6 /src/plugins/map/test | |
| parent | d318a996b7bdcf0246b2d9927a918a3773a88fa6 (diff) | |
ip: functional interface to ip fragmentation
This provides a functional interface to IP fragmentation.
Allowing external features to fragment. Supports
arbitrary encap size, for e.g. MPLS or inner fragmentation
of tunnels.
This also removed dual loop in MAP that was fundamentally broken.
Type: fix
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: Ia89ecec8ee3cbe2416edbe87630fdb714898c2a8
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/plugins/map/test')
| -rw-r--r-- | src/plugins/map/test/test_map.py | 74 |
1 files changed, 72 insertions, 2 deletions
diff --git a/src/plugins/map/test/test_map.py b/src/plugins/map/test/test_map.py index a7e5f165576..c1fe05e1150 100644 --- a/src/plugins/map/test/test_map.py +++ b/src/plugins/map/test/test_map.py @@ -140,7 +140,7 @@ class TestMAP(VppTestCase): IP(src=self.pg0.remote_ip4, dst=self.pg0.remote_ip4) / UDP(sport=20000, dport=10000) / Raw(b'\xa5' * 100)) - rx = self.send_and_expect(self.pg0, v4*1, self.pg0) + rx = self.send_and_expect(self.pg0, v4 * 4, self.pg0) v4_reply = v4[1] v4_reply.ttl -= 1 for p in rx: @@ -154,7 +154,7 @@ class TestMAP(VppTestCase): UDP(sport=20000, dport=10000) / Raw(b'\xa5' * 100)) - self.send_and_assert_encapped_one(v4, "3000::1", map_translated_addr) + self.send_and_assert_encapped(v4 * 4, "3000::1", map_translated_addr) # # Verify reordered fragments are able to pass as well @@ -294,6 +294,76 @@ class TestMAP(VppTestCase): pre_res_route.remove_vpp_config() self.vapi.ppcli("map params pre-resolve del ip6-nh 4001::1") + def test_map_e_inner_frag(self): + """ MAP-E Inner fragmentation """ + + # + # Add a route to the MAP-BR + # + map_br_pfx = "2001::" + map_br_pfx_len = 32 + map_route = VppIpRoute(self, + map_br_pfx, + map_br_pfx_len, + [VppRoutePath(self.pg1.remote_ip6, + self.pg1.sw_if_index)]) + map_route.add_vpp_config() + + # + # Add a domain that maps from pg0 to pg1 + # + map_dst = '2001::/32' + map_src = '3000::1/128' + client_pfx = '192.168.0.0/16' + map_translated_addr = '2001:0:101:7000:0:c0a8:101:7' + tag = 'MAP-E tag.' + self.vapi.map_add_domain(ip4_prefix=client_pfx, + ip6_prefix=map_dst, + ip6_src=map_src, + ea_bits_len=20, + psid_offset=4, + psid_length=4, + mtu=1000, + tag=tag) + + # Enable MAP on interface. + self.vapi.map_if_enable_disable(is_enable=1, + sw_if_index=self.pg0.sw_if_index, + is_translation=0) + + # Enable inner fragmentation + self.vapi.map_param_set_fragmentation(inner=1) + + v4 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src=self.pg0.remote_ip4, dst='192.168.1.1') / + UDP(sport=20000, dport=10000) / + Raw(b'\xa5' * 1300)) + + self.pg_send(self.pg0, v4*1) + rx = self.pg1.get_capture(2) + + frags = fragment_rfc791(v4[1], 1000) + frags[0].id = 0 + frags[1].id = 0 + frags[0].ttl -= 1 + frags[1].ttl -= 1 + frags[0].chksum = 0 + frags[1].chksum = 0 + + v6_reply1 = (IPv6(src='3000::1', dst=map_translated_addr, hlim=63) / + frags[0]) + v6_reply2 = (IPv6(src='3000::1', dst=map_translated_addr, hlim=63) / + frags[1]) + rx[0][1].fl = 0 + rx[1][1].fl = 0 + rx[0][1][IP].id = 0 + rx[1][1][IP].id = 0 + rx[0][1][IP].chksum = 0 + rx[1][1][IP].chksum = 0 + + self.validate(rx[0][1], v6_reply1) + self.validate(rx[1][1], v6_reply2) + def validate(self, rx, expected): self.assertEqual(rx, expected.__class__(scapy.compat.raw(expected))) |