+++ /dev/null
-/* Copyright (c) 2016 VMware
- * Copyright (c) 2016 Facebook
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- */
-#define KBUILD_MODNAME "foo"
-#include <uapi/linux/bpf.h>
-#include <uapi/linux/if_ether.h>
-#include <uapi/linux/if_packet.h>
-#include <uapi/linux/ip.h>
-#include <uapi/linux/ipv6.h>
-#include <uapi/linux/in.h>
-#include <uapi/linux/tcp.h>
-#include <uapi/linux/filter.h>
-#include <uapi/linux/pkt_cls.h>
-#include <uapi/linux/erspan.h>
-#include <net/ipv6.h>
-#include "bpf_helpers.h"
-#include "bpf_endian.h"
-
-#define _htonl __builtin_bswap32
-#define ERROR(ret) do {\
- char fmt[] = "ERROR line:%d ret:%d\n";\
- bpf_trace_printk(fmt, sizeof(fmt), __LINE__, ret); \
- } while(0)
-
-struct geneve_opt {
- __be16 opt_class;
- u8 type;
- u8 length:5;
- u8 r3:1;
- u8 r2:1;
- u8 r1:1;
- u8 opt_data[8]; /* hard-coded to 8 byte */
-};
-
-struct vxlan_metadata {
- u32 gbp;
-};
-
-SEC("gre_set_tunnel")
-int _gre_set_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
-
- __builtin_memset(&key, 0x0, sizeof(key));
- key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
- key.tunnel_id = 2;
- key.tunnel_tos = 0;
- key.tunnel_ttl = 64;
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
- BPF_F_ZERO_CSUM_TX | BPF_F_SEQ_NUMBER);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("gre_get_tunnel")
-int _gre_get_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- char fmt[] = "key %d remote ip 0x%x\n";
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt), key.tunnel_id, key.remote_ipv4);
- return TC_ACT_OK;
-}
-
-SEC("ip6gretap_set_tunnel")
-int _ip6gretap_set_tunnel(struct __sk_buff *skb)
-{
- struct bpf_tunnel_key key;
- int ret;
-
- __builtin_memset(&key, 0x0, sizeof(key));
- key.remote_ipv6[3] = _htonl(0x11); /* ::11 */
- key.tunnel_id = 2;
- key.tunnel_tos = 0;
- key.tunnel_ttl = 64;
- key.tunnel_label = 0xabcde;
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
- BPF_F_TUNINFO_IPV6 | BPF_F_ZERO_CSUM_TX |
- BPF_F_SEQ_NUMBER);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("ip6gretap_get_tunnel")
-int _ip6gretap_get_tunnel(struct __sk_buff *skb)
-{
- char fmt[] = "key %d remote ip6 ::%x label %x\n";
- struct bpf_tunnel_key key;
- int ret;
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
- BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv6[3], key.tunnel_label);
-
- return TC_ACT_OK;
-}
-
-SEC("erspan_set_tunnel")
-int _erspan_set_tunnel(struct __sk_buff *skb)
-{
- struct bpf_tunnel_key key;
- struct erspan_metadata md;
- int ret;
-
- __builtin_memset(&key, 0x0, sizeof(key));
- key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
- key.tunnel_id = 2;
- key.tunnel_tos = 0;
- key.tunnel_ttl = 64;
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_ZERO_CSUM_TX);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- __builtin_memset(&md, 0, sizeof(md));
-#ifdef ERSPAN_V1
- md.version = 1;
- md.u.index = bpf_htonl(123);
-#else
- u8 direction = 1;
- u8 hwid = 7;
-
- md.version = 2;
- md.u.md2.dir = direction;
- md.u.md2.hwid = hwid & 0xf;
- md.u.md2.hwid_upper = (hwid >> 4) & 0x3;
-#endif
-
- ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("erspan_get_tunnel")
-int _erspan_get_tunnel(struct __sk_buff *skb)
-{
- char fmt[] = "key %d remote ip 0x%x erspan version %d\n";
- struct bpf_tunnel_key key;
- struct erspan_metadata md;
- u32 index;
- int ret;
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, md.version);
-
-#ifdef ERSPAN_V1
- char fmt2[] = "\tindex %x\n";
-
- index = bpf_ntohl(md.u.index);
- bpf_trace_printk(fmt2, sizeof(fmt2), index);
-#else
- char fmt2[] = "\tdirection %d hwid %x timestamp %u\n";
-
- bpf_trace_printk(fmt2, sizeof(fmt2),
- md.u.md2.dir,
- (md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
- bpf_ntohl(md.u.md2.timestamp));
-#endif
-
- return TC_ACT_OK;
-}
-
-SEC("ip4ip6erspan_set_tunnel")
-int _ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
-{
- struct bpf_tunnel_key key;
- struct erspan_metadata md;
- int ret;
-
- __builtin_memset(&key, 0x0, sizeof(key));
- key.remote_ipv6[3] = _htonl(0x11);
- key.tunnel_id = 2;
- key.tunnel_tos = 0;
- key.tunnel_ttl = 64;
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
- BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- __builtin_memset(&md, 0, sizeof(md));
-
-#ifdef ERSPAN_V1
- md.u.index = htonl(123);
- md.version = 1;
-#else
- u8 direction = 0;
- u8 hwid = 17;
-
- md.version = 2;
- md.u.md2.dir = direction;
- md.u.md2.hwid = hwid & 0xf;
- md.u.md2.hwid_upper = (hwid >> 4) & 0x3;
-#endif
-
- ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("ip4ip6erspan_get_tunnel")
-int _ip4ip6erspan_get_tunnel(struct __sk_buff *skb)
-{
- char fmt[] = "ip6erspan get key %d remote ip6 ::%x erspan version %d\n";
- struct bpf_tunnel_key key;
- struct erspan_metadata md;
- u32 index;
- int ret;
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, md.version);
-
-#ifdef ERSPAN_V1
- char fmt2[] = "\tindex %x\n";
-
- index = bpf_ntohl(md.u.index);
- bpf_trace_printk(fmt2, sizeof(fmt2), index);
-#else
- char fmt2[] = "\tdirection %d hwid %x timestamp %u\n";
-
- bpf_trace_printk(fmt2, sizeof(fmt2),
- md.u.md2.dir,
- (md.u.md2.hwid_upper << 4) + md.u.md2.hwid,
- bpf_ntohl(md.u.md2.timestamp));
-#endif
-
- return TC_ACT_OK;
-}
-
-SEC("vxlan_set_tunnel")
-int _vxlan_set_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- struct vxlan_metadata md;
-
- __builtin_memset(&key, 0x0, sizeof(key));
- key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
- key.tunnel_id = 2;
- key.tunnel_tos = 0;
- key.tunnel_ttl = 64;
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_ZERO_CSUM_TX);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- md.gbp = 0x800FF; /* Set VXLAN Group Policy extension */
- ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("vxlan_get_tunnel")
-int _vxlan_get_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- struct vxlan_metadata md;
- char fmt[] = "key %d remote ip 0x%x vxlan gbp 0x%x\n";
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, md.gbp);
-
- return TC_ACT_OK;
-}
-
-SEC("geneve_set_tunnel")
-int _geneve_set_tunnel(struct __sk_buff *skb)
-{
- int ret, ret2;
- struct bpf_tunnel_key key;
- struct geneve_opt gopt;
-
- __builtin_memset(&key, 0x0, sizeof(key));
- key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
- key.tunnel_id = 2;
- key.tunnel_tos = 0;
- key.tunnel_ttl = 64;
-
- __builtin_memset(&gopt, 0x0, sizeof(gopt));
- gopt.opt_class = 0x102; /* Open Virtual Networking (OVN) */
- gopt.type = 0x08;
- gopt.r1 = 0;
- gopt.r2 = 0;
- gopt.r3 = 0;
- gopt.length = 2; /* 4-byte multiple */
- *(int *) &gopt.opt_data = 0xdeadbeef;
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_ZERO_CSUM_TX);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- ret = bpf_skb_set_tunnel_opt(skb, &gopt, sizeof(gopt));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("geneve_get_tunnel")
-int _geneve_get_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- struct geneve_opt gopt;
- char fmt[] = "key %d remote ip 0x%x geneve class 0x%x\n";
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- ret = bpf_skb_get_tunnel_opt(skb, &gopt, sizeof(gopt));
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt),
- key.tunnel_id, key.remote_ipv4, gopt.opt_class);
- return TC_ACT_OK;
-}
-
-SEC("ipip_set_tunnel")
-int _ipip_set_tunnel(struct __sk_buff *skb)
-{
- struct bpf_tunnel_key key = {};
- void *data = (void *)(long)skb->data;
- struct iphdr *iph = data;
- struct tcphdr *tcp = data + sizeof(*iph);
- void *data_end = (void *)(long)skb->data_end;
- int ret;
-
- /* single length check */
- if (data + sizeof(*iph) + sizeof(*tcp) > data_end) {
- ERROR(1);
- return TC_ACT_SHOT;
- }
-
- key.tunnel_ttl = 64;
- if (iph->protocol == IPPROTO_ICMP) {
- key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
- } else {
- if (iph->protocol != IPPROTO_TCP || iph->ihl != 5)
- return TC_ACT_SHOT;
-
- if (tcp->dest == htons(5200))
- key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
- else if (tcp->dest == htons(5201))
- key.remote_ipv4 = 0xac100165; /* 172.16.1.101 */
- else
- return TC_ACT_SHOT;
- }
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), 0);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("ipip_get_tunnel")
-int _ipip_get_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- char fmt[] = "remote ip 0x%x\n";
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt), key.remote_ipv4);
- return TC_ACT_OK;
-}
-
-SEC("ipip6_set_tunnel")
-int _ipip6_set_tunnel(struct __sk_buff *skb)
-{
- struct bpf_tunnel_key key = {};
- void *data = (void *)(long)skb->data;
- struct iphdr *iph = data;
- struct tcphdr *tcp = data + sizeof(*iph);
- void *data_end = (void *)(long)skb->data_end;
- int ret;
-
- /* single length check */
- if (data + sizeof(*iph) + sizeof(*tcp) > data_end) {
- ERROR(1);
- return TC_ACT_SHOT;
- }
-
- key.remote_ipv6[0] = _htonl(0x2401db00);
- key.tunnel_ttl = 64;
-
- if (iph->protocol == IPPROTO_ICMP) {
- key.remote_ipv6[3] = _htonl(1);
- } else {
- if (iph->protocol != IPPROTO_TCP || iph->ihl != 5) {
- ERROR(iph->protocol);
- return TC_ACT_SHOT;
- }
-
- if (tcp->dest == htons(5200)) {
- key.remote_ipv6[3] = _htonl(1);
- } else if (tcp->dest == htons(5201)) {
- key.remote_ipv6[3] = _htonl(2);
- } else {
- ERROR(tcp->dest);
- return TC_ACT_SHOT;
- }
- }
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("ipip6_get_tunnel")
-int _ipip6_get_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- char fmt[] = "remote ip6 %x::%x\n";
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt), _htonl(key.remote_ipv6[0]),
- _htonl(key.remote_ipv6[3]));
- return TC_ACT_OK;
-}
-
-SEC("ip6ip6_set_tunnel")
-int _ip6ip6_set_tunnel(struct __sk_buff *skb)
-{
- struct bpf_tunnel_key key = {};
- void *data = (void *)(long)skb->data;
- struct ipv6hdr *iph = data;
- struct tcphdr *tcp = data + sizeof(*iph);
- void *data_end = (void *)(long)skb->data_end;
- int ret;
-
- /* single length check */
- if (data + sizeof(*iph) + sizeof(*tcp) > data_end) {
- ERROR(1);
- return TC_ACT_SHOT;
- }
-
- key.remote_ipv6[0] = _htonl(0x2401db00);
- key.tunnel_ttl = 64;
-
- if (iph->nexthdr == NEXTHDR_ICMP) {
- key.remote_ipv6[3] = _htonl(1);
- } else {
- if (iph->nexthdr != NEXTHDR_TCP) {
- ERROR(iph->nexthdr);
- return TC_ACT_SHOT;
- }
-
- if (tcp->dest == htons(5200)) {
- key.remote_ipv6[3] = _htonl(1);
- } else if (tcp->dest == htons(5201)) {
- key.remote_ipv6[3] = _htonl(2);
- } else {
- ERROR(tcp->dest);
- return TC_ACT_SHOT;
- }
- }
-
- ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- return TC_ACT_OK;
-}
-
-SEC("ip6ip6_get_tunnel")
-int _ip6ip6_get_tunnel(struct __sk_buff *skb)
-{
- int ret;
- struct bpf_tunnel_key key;
- char fmt[] = "remote ip6 %x::%x\n";
-
- ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), BPF_F_TUNINFO_IPV6);
- if (ret < 0) {
- ERROR(ret);
- return TC_ACT_SHOT;
- }
-
- bpf_trace_printk(fmt, sizeof(fmt), _htonl(key.remote_ipv6[0]),
- _htonl(key.remote_ipv6[3]));
- return TC_ACT_OK;
-}
-
-SEC("xfrm_get_state")
-int _xfrm_get_state(struct __sk_buff *skb)
-{
- struct bpf_xfrm_state x;
- char fmt[] = "reqid %d spi 0x%x remote ip 0x%x\n";
- int ret;
-
- ret = bpf_skb_get_xfrm_state(skb, 0, &x, sizeof(x), 0);
- if (ret < 0)
- return TC_ACT_OK;
-
- bpf_trace_printk(fmt, sizeof(fmt), x.reqid, bpf_ntohl(x.spi),
- bpf_ntohl(x.remote_ipv4));
- return TC_ACT_OK;
-}
-
-char _license[] SEC("license") = "GPL";
+++ /dev/null
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
-# In Namespace 0 (at_ns0) using native tunnel
-# Overlay IP: 10.1.1.100
-# local 192.16.1.100 remote 192.16.1.200
-# veth0 IP: 172.16.1.100, tunnel dev <type>00
-
-# Out of Namespace using BPF set/get on lwtunnel
-# Overlay IP: 10.1.1.200
-# local 172.16.1.200 remote 172.16.1.100
-# veth1 IP: 172.16.1.200, tunnel dev <type>11
-
-function config_device {
- ip netns add at_ns0
- ip link add veth0 type veth peer name veth1
- ip link set veth0 netns at_ns0
- ip netns exec at_ns0 ip addr add 172.16.1.100/24 dev veth0
- ip netns exec at_ns0 ip link set dev veth0 up
- ip link set dev veth1 up mtu 1500
- ip addr add dev veth1 172.16.1.200/24
-}
-
-function add_gre_tunnel {
- # in namespace
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local 172.16.1.100 remote 172.16.1.200
- ip netns exec at_ns0 ip link set dev $DEV_NS up
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
-
- # out of namespace
- ip link add dev $DEV type $TYPE key 2 external
- ip link set dev $DEV up
- ip addr add dev $DEV 10.1.1.200/24
-}
-
-function add_ip6gretap_tunnel {
-
- # assign ipv6 address
- ip netns exec at_ns0 ip addr add ::11/96 dev veth0
- ip netns exec at_ns0 ip link set dev veth0 up
- ip addr add dev veth1 ::22/96
- ip link set dev veth1 up
-
- # in namespace
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq flowlabel 0xbcdef key 2 \
- local ::11 remote ::22
-
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
- ip netns exec at_ns0 ip addr add dev $DEV_NS fc80::100/96
- ip netns exec at_ns0 ip link set dev $DEV_NS up
-
- # out of namespace
- ip link add dev $DEV type $TYPE external
- ip addr add dev $DEV 10.1.1.200/24
- ip addr add dev $DEV fc80::200/24
- ip link set dev $DEV up
-}
-
-function add_erspan_tunnel {
- # in namespace
- if [ "$1" == "v1" ]; then
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local 172.16.1.100 remote 172.16.1.200 \
- erspan_ver 1 erspan 123
- else
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local 172.16.1.100 remote 172.16.1.200 \
- erspan_ver 2 erspan_dir egress erspan_hwid 3
- fi
- ip netns exec at_ns0 ip link set dev $DEV_NS up
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
-
- # out of namespace
- ip link add dev $DEV type $TYPE external
- ip link set dev $DEV up
- ip addr add dev $DEV 10.1.1.200/24
-}
-
-function add_ip6erspan_tunnel {
-
- # assign ipv6 address
- ip netns exec at_ns0 ip addr add ::11/96 dev veth0
- ip netns exec at_ns0 ip link set dev veth0 up
- ip addr add dev veth1 ::22/96
- ip link set dev veth1 up
-
- # in namespace
- if [ "$1" == "v1" ]; then
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local ::11 remote ::22 \
- erspan_ver 1 erspan 123
- else
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE seq key 2 \
- local ::11 remote ::22 \
- erspan_ver 2 erspan_dir egress erspan_hwid 7
- fi
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
- ip netns exec at_ns0 ip link set dev $DEV_NS up
-
- # out of namespace
- ip link add dev $DEV type $TYPE external
- ip addr add dev $DEV 10.1.1.200/24
- ip link set dev $DEV up
-}
-
-function add_vxlan_tunnel {
- # Set static ARP entry here because iptables set-mark works
- # on L3 packet, as a result not applying to ARP packets,
- # causing errors at get_tunnel_{key/opt}.
-
- # in namespace
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE id 2 dstport 4789 gbp remote 172.16.1.200
- ip netns exec at_ns0 ip link set dev $DEV_NS address 52:54:00:d9:01:00 up
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
- ip netns exec at_ns0 arp -s 10.1.1.200 52:54:00:d9:02:00
- ip netns exec at_ns0 iptables -A OUTPUT -j MARK --set-mark 0x800FF
-
- # out of namespace
- ip link add dev $DEV type $TYPE external gbp dstport 4789
- ip link set dev $DEV address 52:54:00:d9:02:00 up
- ip addr add dev $DEV 10.1.1.200/24
- arp -s 10.1.1.100 52:54:00:d9:01:00
-}
-
-function add_geneve_tunnel {
- # in namespace
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE id 2 dstport 6081 remote 172.16.1.200
- ip netns exec at_ns0 ip link set dev $DEV_NS up
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
-
- # out of namespace
- ip link add dev $DEV type $TYPE dstport 6081 external
- ip link set dev $DEV up
- ip addr add dev $DEV 10.1.1.200/24
-}
-
-function add_ipip_tunnel {
- # in namespace
- ip netns exec at_ns0 \
- ip link add dev $DEV_NS type $TYPE local 172.16.1.100 remote 172.16.1.200
- ip netns exec at_ns0 ip link set dev $DEV_NS up
- ip netns exec at_ns0 ip addr add dev $DEV_NS 10.1.1.100/24
-
- # out of namespace
- ip link add dev $DEV type $TYPE external
- ip link set dev $DEV up
- ip addr add dev $DEV 10.1.1.200/24
-}
-
-function setup_xfrm_tunnel {
- auth=0x$(printf '1%.0s' {1..40})
- enc=0x$(printf '2%.0s' {1..32})
- spi_in_to_out=0x1
- spi_out_to_in=0x2
- # in namespace
- # in -> out
- ip netns exec at_ns0 \
- ip xfrm state add src 172.16.1.100 dst 172.16.1.200 proto esp \
- spi $spi_in_to_out reqid 1 mode tunnel \
- auth-trunc 'hmac(sha1)' $auth 96 enc 'cbc(aes)' $enc
- ip netns exec at_ns0 \
- ip xfrm policy add src 10.1.1.100/32 dst 10.1.1.200/32 dir out \
- tmpl src 172.16.1.100 dst 172.16.1.200 proto esp reqid 1 \
- mode tunnel
- # out -> in
- ip netns exec at_ns0 \
- ip xfrm state add src 172.16.1.200 dst 172.16.1.100 proto esp \
- spi $spi_out_to_in reqid 2 mode tunnel \
- auth-trunc 'hmac(sha1)' $auth 96 enc 'cbc(aes)' $enc
- ip netns exec at_ns0 \
- ip xfrm policy add src 10.1.1.200/32 dst 10.1.1.100/32 dir in \
- tmpl src 172.16.1.200 dst 172.16.1.100 proto esp reqid 2 \
- mode tunnel
- # address & route
- ip netns exec at_ns0 \
- ip addr add dev veth0 10.1.1.100/32
- ip netns exec at_ns0 \
- ip route add 10.1.1.200 dev veth0 via 172.16.1.200 \
- src 10.1.1.100
-
- # out of namespace
- # in -> out
- ip xfrm state add src 172.16.1.100 dst 172.16.1.200 proto esp \
- spi $spi_in_to_out reqid 1 mode tunnel \
- auth-trunc 'hmac(sha1)' $auth 96 enc 'cbc(aes)' $enc
- ip xfrm policy add src 10.1.1.100/32 dst 10.1.1.200/32 dir in \
- tmpl src 172.16.1.100 dst 172.16.1.200 proto esp reqid 1 \
- mode tunnel
- # out -> in
- ip xfrm state add src 172.16.1.200 dst 172.16.1.100 proto esp \
- spi $spi_out_to_in reqid 2 mode tunnel \
- auth-trunc 'hmac(sha1)' $auth 96 enc 'cbc(aes)' $enc
- ip xfrm policy add src 10.1.1.200/32 dst 10.1.1.100/32 dir out \
- tmpl src 172.16.1.200 dst 172.16.1.100 proto esp reqid 2 \
- mode tunnel
- # address & route
- ip addr add dev veth1 10.1.1.200/32
- ip route add 10.1.1.100 dev veth1 via 172.16.1.100 src 10.1.1.200
-}
-
-function attach_bpf {
- DEV=$1
- SET_TUNNEL=$2
- GET_TUNNEL=$3
- tc qdisc add dev $DEV clsact
- tc filter add dev $DEV egress bpf da obj tcbpf2_kern.o sec $SET_TUNNEL
- tc filter add dev $DEV ingress bpf da obj tcbpf2_kern.o sec $GET_TUNNEL
-}
-
-function test_gre {
- TYPE=gretap
- DEV_NS=gretap00
- DEV=gretap11
- config_device
- add_gre_tunnel
- attach_bpf $DEV gre_set_tunnel gre_get_tunnel
- ping -c 1 10.1.1.100
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- cleanup
-}
-
-function test_ip6gre {
- TYPE=ip6gre
- DEV_NS=ip6gre00
- DEV=ip6gre11
- config_device
- # reuse the ip6gretap function
- add_ip6gretap_tunnel
- attach_bpf $DEV ip6gretap_set_tunnel ip6gretap_get_tunnel
- # underlay
- ping6 -c 4 ::11
- # overlay: ipv4 over ipv6
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- ping -c 1 10.1.1.100
- # overlay: ipv6 over ipv6
- ip netns exec at_ns0 ping6 -c 1 fc80::200
- cleanup
-}
-
-function test_ip6gretap {
- TYPE=ip6gretap
- DEV_NS=ip6gretap00
- DEV=ip6gretap11
- config_device
- add_ip6gretap_tunnel
- attach_bpf $DEV ip6gretap_set_tunnel ip6gretap_get_tunnel
- # underlay
- ping6 -c 4 ::11
- # overlay: ipv4 over ipv6
- ip netns exec at_ns0 ping -i .2 -c 1 10.1.1.200
- ping -c 1 10.1.1.100
- # overlay: ipv6 over ipv6
- ip netns exec at_ns0 ping6 -c 1 fc80::200
- cleanup
-}
-
-function test_erspan {
- TYPE=erspan
- DEV_NS=erspan00
- DEV=erspan11
- config_device
- add_erspan_tunnel $1
- attach_bpf $DEV erspan_set_tunnel erspan_get_tunnel
- ping -c 1 10.1.1.100
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- cleanup
-}
-
-function test_ip6erspan {
- TYPE=ip6erspan
- DEV_NS=ip6erspan00
- DEV=ip6erspan11
- config_device
- add_ip6erspan_tunnel $1
- attach_bpf $DEV ip4ip6erspan_set_tunnel ip4ip6erspan_get_tunnel
- ping6 -c 3 ::11
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- cleanup
-}
-
-function test_vxlan {
- TYPE=vxlan
- DEV_NS=vxlan00
- DEV=vxlan11
- config_device
- add_vxlan_tunnel
- attach_bpf $DEV vxlan_set_tunnel vxlan_get_tunnel
- ping -c 1 10.1.1.100
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- cleanup
-}
-
-function test_geneve {
- TYPE=geneve
- DEV_NS=geneve00
- DEV=geneve11
- config_device
- add_geneve_tunnel
- attach_bpf $DEV geneve_set_tunnel geneve_get_tunnel
- ping -c 1 10.1.1.100
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- cleanup
-}
-
-function test_ipip {
- TYPE=ipip
- DEV_NS=ipip00
- DEV=ipip11
- config_device
- tcpdump -nei veth1 &
- cat /sys/kernel/debug/tracing/trace_pipe &
- add_ipip_tunnel
- ethtool -K veth1 gso off gro off rx off tx off
- ip link set dev veth1 mtu 1500
- attach_bpf $DEV ipip_set_tunnel ipip_get_tunnel
- ping -c 1 10.1.1.100
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- ip netns exec at_ns0 iperf -sD -p 5200 > /dev/null
- sleep 0.2
- iperf -c 10.1.1.100 -n 5k -p 5200
- cleanup
-}
-
-function test_xfrm_tunnel {
- config_device
- tcpdump -nei veth1 ip &
- output=$(mktemp)
- cat /sys/kernel/debug/tracing/trace_pipe | tee $output &
- setup_xfrm_tunnel
- tc qdisc add dev veth1 clsact
- tc filter add dev veth1 proto ip ingress bpf da obj tcbpf2_kern.o \
- sec xfrm_get_state
- ip netns exec at_ns0 ping -c 1 10.1.1.200
- grep "reqid 1" $output
- grep "spi 0x1" $output
- grep "remote ip 0xac100164" $output
- cleanup
-}
-
-function cleanup {
- set +ex
- pkill iperf
- ip netns delete at_ns0
- ip link del veth1
- ip link del ipip11
- ip link del gretap11
- ip link del ip6gre11
- ip link del ip6gretap11
- ip link del vxlan11
- ip link del geneve11
- ip link del erspan11
- ip link del ip6erspan11
- ip x s flush
- ip x p flush
- pkill tcpdump
- pkill cat
- set -ex
-}
-
-trap cleanup 0 2 3 6 9
-cleanup
-echo "Testing GRE tunnel..."
-test_gre
-echo "Testing IP6GRE tunnel..."
-test_ip6gre
-echo "Testing IP6GRETAP tunnel..."
-test_ip6gretap
-echo "Testing ERSPAN tunnel..."
-test_erspan v1
-test_erspan v2
-echo "Testing IP6ERSPAN tunnel..."
-test_ip6erspan v1
-test_ip6erspan v2
-echo "Testing VXLAN tunnel..."
-test_vxlan
-echo "Testing GENEVE tunnel..."
-test_geneve
-echo "Testing IPIP tunnel..."
-test_ipip
-echo "Testing IPSec tunnel..."
-test_xfrm_tunnel
-echo "*** PASS ***"
projects / linux.git / commitdiff