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Use PacketBuilder API for KatranDecapStatsTestFixtures.h
Summary: Using new PacketBuilder API for KatranDecapStatsTestFixtures.h instead of base64 encoded format. Reviewed By: p-shah256 Differential Revision: D82836739 fbshipit-source-id: d2f0ae04fee69272e092059b8b2576e546611b45
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‎katran/lib/testing/fixtures/KatranDecapStatsTestFixtures.h‎

Lines changed: 86 additions & 44 deletions
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// @nolint
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// clang-format off
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/* Copyright (C) 2018-present, Facebook, Inc.
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*
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*/
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#pragma once
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#include <bpf/bpf.h>
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#include <katran/lib/testing/tools/PacketAttributes.h>
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#include <string>
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#include <utility>
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#include <vector>
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#include "katran/lib/testing/tools/PacketAttributes.h"
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#include "katran/lib/testing/tools/PacketBuilder.h"
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extern "C" {
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#include <netinet/tcp.h>
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}
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namespace katran {
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namespace testing {
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/**
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* Input packets has been generated with scapy.
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* Test fixtures for VIP decapsulation statistics functionality.
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*
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* Each test case is generated using PacketBuilder and contains:
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* - inputPacketBuilder: PacketBuilder object for input packet
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* - expectedOutputPacketBuilder: PacketBuilder object for expected output packet
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* - description: Test case description
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* - expectedReturnValue: Expected BPF program return code (XDP_TX, XDP_DROP, XDP_PASS)
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*
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* Format of the input data: <string, string>; 1st string is a base64 encoded
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* packet. 2nd string is test's description
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* PacketBuilder Usage:
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* PacketBuilder::newPacket()
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* .Eth("01:00:00:00:00:00", "02:00:00:00:00:00")
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* .IPv4("192.168.1.1", "10.200.1.1")
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* .UDP(31337, 80)
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* .payload("katran test pkt")
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*
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* Format of the output data: <string, string>; 1st string is a base64 encoded
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* packet which we are expecting to see after bpf program's run.
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* 2nd string = bpf's program return code.
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* For GUE encapsulation:
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* PacketBuilder::newPacket()
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* .Eth("01:00:00:00:00:00", "02:00:00:00:00:00")
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* .IPv6("100::64", "fc00:1::1") // outer IPv6 - to VIP
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* .UDP(31337, 9886) // outer UDP (GUE)
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* .IPv4("192.168.1.1", "10.200.1.1") // inner IPv4 - client to VIP
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* .UDP(31337, 80) // inner UDP
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* .payload("katran test pkt")
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*
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* to create pcap w/ scapy:
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* 1) create packets
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* 2) pckts = [ <created packets from above> ]
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* 3) wrpcap(<path_to_file>, pckts)
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* Requirements:
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* - INLINE_DECAP_GUE feature must be enabled for decap tests
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* - Tests cover scenarios where GUE packets hit configured VIPs
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* - VIP decap stats counters should be incremented for successful decaps
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*/
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const std::vector<PacketAttributes> DecapTestFixtures = {
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// gue ip6 in ip6 inline decap. out dst is host primary addr fc00:2307::1337
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{// Ether(src="0x1", dst="0x2")/IPv6(src="100::64",dst="fc00:2307::1337")/UDP(sport=31337,dport=9886)/IPv6(src="fc00:2307:1::2", dst="fc00:1::1")/TCP(sport=31337,dport=80,flags="A")/"katran test pkt"
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.inputPacket =
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"AgAAAAAAAQAAAAAAht1gAAAAAFMRQAEAAAAAAAAAAAAAAAAAAGT8ACMHAAAAAAAAAAAAABM3emkmngBTxGNgAAAAACMGQPwAIwcAAQAAAAAAAAAAAAL8AAABAAAAAAAAAAAAAAABemkAUAAAAAAAAAAAUBAgANpIAABrYXRyYW4gdGVzdCBwa3Q=",
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.description = "gue ip6ip6 inline decap. INLINE_DECAP_GUE is required",
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.expectedReturnValue = "XDP_PASS",
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.expectedOutputPacket =
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"AgAAAAAAAQAAAAAAht1gAAAAACMGP/wAIwcAAQAAAAAAAAAAAAL8AAABAAAAAAAAAAAAAAABemkAUAAAAAAAAAAAUBAgANpIAABrYXRyYW4gdGVzdCBwa3Q="},
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// gue ip4 in ip6 inline decap. out dst is host primary addr fc00:2307::1337
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{// Ether(src="0x1", dst="0x2")/IPv6(src="100::64",dst="fc00:2307::1337")/UDP(sport=31337,dport=9886)/IP(src="192.168.1.3", dst="10.200.1.1")/UDP(sport=31337,dport=80)/"katran test pkt"
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.inputPacket =
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"AgAAAAAAAQAAAAAAht1gAAAAADMRQAEAAAAAAAAAAAAAAAAAAGT8ACMHAAAAAAAAAAAAABM3emkmngAz+HpFAAArAAEAAEARrU3AqAEDCsgBAXppAFAAF5fca2F0cmFuIHRlc3QgcGt0",
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.description = "gue ip4 in ip6 inline decap. INLINE_DECAP_GUE is required",
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.expectedReturnValue = "XDP_PASS",
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// Ether(src="0x1", dst="0x2")/IP(src="192.168.1.3",dst="10.200.1.1")/UDP(sport=31337, dport=80)/"katran test pkt"
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.expectedOutputPacket =
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"AgAAAAAAAQAAAAAACABFAAArAAEAAD8Rrk3AqAEDCsgBAXppAFAAF5fca2F0cmFuIHRlc3QgcGt0"},
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// ip6 packet for vip - this should not get decaped, so won't be added to decap vip stats
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{// Ether(src="0x1", dst="0x2")/IPv6(src="100::64",dst="fc00:1::1")/TCP(sport=31337, dport=80,flags="A")/"katran test pkt"
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.inputPacket =
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"AgAAAAAAAQAAAAAAht1gAAAAACMGQAEAAAAAAAAAAAAAAAAAAGT8AAABAAAAAAAAAAAAAAABemkAUAAAAAAAAAAAUBAgAPfvAABrYXRyYW4gdGVzdCBwa3Q=",
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.description = "vip traffic",
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.expectedReturnValue = "XDP_TX",
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// Ether(dst="00:00:de:ad:be:af",src="02:00:00:00:00:00")/IPv6(src="fc00:2307::1337",dst="fc00::2")/UDP(sport=31337, dport=9886)/IPv6(src="100::64",dst="fc00:1::1")/TCP(sport=31337, dport=80,flags="A")/"katran test pkt"
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.expectedOutputPacket =
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"AADerb6vAgAAAAAAht1gAAAAAFMRQPwAIwcAAAAAAAAAAAAAEzf8AAAAAAAAAAAAAAAAAAACemkmngBTycRgAAAAACMGQAEAAAAAAAAAAAAAAAAAAGT8AAABAAAAAAAAAAAAAAABemkAUAAAAAAAAAAAUBAgAPfvAABrYXRyYW4gdGVzdCBwa3Q="},
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namespace katran {
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namespace testing {
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const std::vector<PacketAttributes> DecapTestFixtures = {
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//1
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{
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.description = "GUE IPv6-in-IPv6 decap for IPv6 VIP fc00:1::1 port 80",
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.expectedReturnValue = "XDP_PASS",
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.inputPacketBuilder = katran::testing::PacketBuilder::newPacket()
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.Eth("0x1", "0x2")
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.IPv6("100::64", "fc00:2307::1337") // outer IPv6 - destination is Katran source for inline decap
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.UDP(31337, 9886) // GUE encapsulation port 9886
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.IPv6("fc00:2307:1::2", "fc00:1::1") // inner IPv6 - from client to VIP
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.TCP(31337, 80, 0, 0, 8192, TH_ACK)
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.payload("katran test pkt"),
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.expectedOutputPacketBuilder = katran::testing::PacketBuilder::newPacket()
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.Eth("0x1", "0x2")
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.IPv6("fc00:2307:1::2", "fc00:1::1", 63) // inner packet after decap, hop limit decremented
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.TCP(31337, 80, 0, 0, 8192, TH_ACK) // inner TCP
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.payload("katran test pkt")
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},
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//2
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{
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.description = "GUE IPv4-in-IPv6 decap for IPv4 VIP 10.200.1.1 port 80",
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.expectedReturnValue = "XDP_PASS",
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.inputPacketBuilder = katran::testing::PacketBuilder::newPacket()
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.Eth("0x1", "0x2")
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.IPv6("100::64", "fc00:2307::1337") // outer IPv6 - destination is Katran source for inline decap
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.UDP(31337, 9886) // GUE encapsulation port 9886
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.IPv4("192.168.1.3", "10.200.1.1") // inner IPv4 - from client to VIP
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.UDP(31337, 80)
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.payload("katran test pkt"),
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.expectedOutputPacketBuilder = katran::testing::PacketBuilder::newPacket()
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.Eth("0x1", "0x2")
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.IPv4("192.168.1.3", "10.200.1.1", 63, 0, 1) // inner packet after decap, TTL decremented, ID=1
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.UDP(31337, 80) // inner UDP
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.payload("katran test pkt")
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},
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//3
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{
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.description = "Regular IPv6 VIP traffic (not decap) to fc00:1::1",
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.expectedReturnValue = "XDP_TX",
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.inputPacketBuilder = katran::testing::PacketBuilder::newPacket()
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.Eth("0x1", "0x2")
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.IPv6("100::64", "fc00:1::1")
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.TCP(31337, 80, 0, 0, 8192, TH_ACK)
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.payload("katran test pkt"),
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.expectedOutputPacketBuilder = katran::testing::PacketBuilder::newPacket()
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.Eth("02:00:00:00:00:00", "00:00:de:ad:be:af")
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.IPv6("fc00:2307::1337", "fc00::2") // encapsulated to IPv6 backend
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.UDP(31337, 9886)
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.IPv6("100::64", "fc00:1::1")
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.TCP(31337, 80, 0, 0, 8192, TH_ACK)
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.payload("katran test pkt")
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}
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};
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} // namespace testing

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