@@ -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;
@@ -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
The patch adds tests for GRE sequence number support for metadata mode tunnel. Signed-off-by: William Tu <u9012063@gmail.com> --- samples/bpf/tcbpf2_kern.c | 6 ++++-- samples/bpf/test_tunnel_bpf.sh | 5 +++-- 2 files changed, 7 insertions(+), 4 deletions(-)