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Commit 5f280b60 authored by William Tu's avatar William Tu Committed by David S. Miller
Browse files

samples/bpf: add gre sequence number test. 



The patch adds tests for GRE sequence number
support for metadata mode tunnel.

Signed-off-by: default avatarWilliam Tu <u9012063@gmail.com>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 77a5196a

samples/bpf/tcbpf2_kern.c

+4 −2
Original line number Diff line number Diff line
@@ -52,7 +52,8 @@ int _gre_set_tunnel(struct __sk_buff *skb) 
	key.tunnel_tos = 0;

	key.tunnel_ttl = 64;



	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), BPF_F_ZERO_CSUM_TX);

	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;
@@ -92,7 +93,8 @@ int _ip6gretap_set_tunnel(struct __sk_buff *skb) 
	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_TUNINFO_IPV6 | BPF_F_ZERO_CSUM_TX |

				     BPF_F_SEQ_NUMBER);

	if (ret < 0) {

		ERROR(ret);

		return TC_ACT_SHOT;

samples/bpf/test_tunnel_bpf.sh

+3 −2
Original line number Diff line number Diff line
@@ -23,7 +23,8 @@ function config_device { 
function add_gre_tunnel {

	# in namespace

	ip netns exec at_ns0 \

		ip link add dev $DEV_NS type $TYPE key 2 local 172.16.1.100 remote 172.16.1.200

        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
@@ -43,7 +44,7 @@ function add_ip6gretap_tunnel { 


	# in namespace

	ip netns exec at_ns0 \

		ip link add dev $DEV_NS type $TYPE flowlabel 0xbcdef key 2 \

		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