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samples/bpf: add gre sequence number test. 

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

Signed-off-by: William Tu <u9012063@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
William Tu 2018-03-01 13:49:58 -08:00 committed by David S. Miller
parent 77a5196a80
commit 5f280b60d2
2 changed files with 7 additions and 4 deletions
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6
samples/bpf/tcbpf2_kern.c
View File

@ -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;

5
samples/bpf/test_tunnel_bpf.sh
View File

@ -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