move srcmatch to 9886

Summary: ^^^^^

Reviewed By: pdubovitsky

Differential Revision: D100216703

fbshipit-source-id: ed0edb79bc15a4ee1cc5fc08685137507a5d0ca0

Author: p-shah256

katran/decap/testing/TcSrcMatchTestFixtures.h

@@ -29,24 +29,40 @@ namespace katran {
 namespace testing {
 
 inline std::vector<PacketAttributes> buildTcSrcMatchFixtures() {
-  // shivless packet (9887 gue encapped, ipv6, tcp)
   auto before = PacketBuilder::newPacket()
       .Eth("00:00:00:00:00:01", "00:00:00:00:00:02")
       .IPv6("2001:db8::1", "2001:db8::2")
-      .UDP(1234, 9887)
+      .UDP(1234, 9886)
       .IPv6("2001:db8::99", "2001:db8::3")
       .TCP(80, 443)
       .payload("test")
       .build();
   auto after = PacketBuilder::newPacket()
       .Eth("00:00:00:00:00:01", "00:00:00:00:00:02")
       .IPv6("2001:db8::1", "2001:db8::2")
-      .UDP(1234, 9887)
+      .UDP(1234, 9886)
       .IPv6("2001:db8::1", "2001:db8::3")
       .TCP(80, 443)
       .payload("test")
       .build();
 
+  auto beforePlainGue = PacketBuilder::newPacket()
+      .Eth("00:00:00:00:00:01", "00:00:00:00:00:02")
+      .IPv6("2001:db8::1", "2001:db8::2")
+      .UDP(1234, 9887)
+      .IPv6("2001:db8::99", "2001:db8::3")
+      .TCP(80, 443)
+      .payload("test")
+      .build();
+  auto afterPlainGue = PacketBuilder::newPacket()
+      .Eth("00:00:00:00:00:01", "00:00:00:00:00:02")
+      .IPv6("2001:db8::1", "2001:db8::2")
+      .UDP(1234, 9887)
+      .IPv6("2001:db8::99", "2001:db8::3")
+      .TCP(80, 443)
+      .payload("test")
+      .build();
+
   // Plain IPv4 — pass through
   auto plainIpv4 = PacketBuilder::newPacket()
       .Eth("00:00:00:00:00:01", "00:00:00:00:00:02")
@@ -76,6 +92,12 @@ inline std::vector<PacketAttributes> buildTcSrcMatchFixtures() {
           .expectedReturnValue = "TC_ACT_PIPE",
           .expectedOutputPacket = after.base64Packet,
       },
+      {
+          .inputPacket = beforePlainGue.base64Packet,
+          .description = "Non Kde GUE IPv6-in-IPv6: do not overwrite packets",
+          .expectedReturnValue = "TC_ACT_PIPE",
+          .expectedOutputPacket = afterPlainGue.base64Packet,
+      },
       {
           .inputPacket = plainIpv4.base64Packet,
           .description = "Plain IPv4: pass through",