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-rw-r--r--tools/testing/selftests/bpf/progs/test_tc_tunnel.c19
-rwxr-xr-xtools/testing/selftests/bpf/test_tc_tunnel.sh10
2 files changed, 19 insertions, 10 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
index 3b79dffb8103..f541c2de947d 100644
--- a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
+++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
@@ -70,8 +70,13 @@ static __always_inline int encap_ipv4(struct __sk_buff *skb, bool with_gre)
if (tcph.dest != __bpf_constant_htons(cfg_port))
return TC_ACT_OK;
- flags = BPF_F_ADJ_ROOM_FIXED_GSO;
- olen = with_gre ? sizeof(h_outer) : sizeof(h_outer.ip);
+ flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV4;
+ if (with_gre) {
+ flags |= BPF_F_ADJ_ROOM_ENCAP_L4_GRE;
+ olen = sizeof(h_outer);
+ } else {
+ olen = sizeof(h_outer.ip);
+ }
/* add room between mac and network header */
if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
@@ -119,8 +124,14 @@ static __always_inline int encap_ipv6(struct __sk_buff *skb, bool with_gre)
if (tcph.dest != __bpf_constant_htons(cfg_port))
return TC_ACT_OK;
- flags = BPF_F_ADJ_ROOM_FIXED_GSO;
- olen = with_gre ? sizeof(h_outer) : sizeof(h_outer.ip);
+ flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV6;
+ if (with_gre) {
+ flags |= BPF_F_ADJ_ROOM_ENCAP_L4_GRE;
+ olen = sizeof(h_outer);
+ } else {
+ olen = sizeof(h_outer.ip);
+ }
+
/* add room between mac and network header */
if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
diff --git a/tools/testing/selftests/bpf/test_tc_tunnel.sh b/tools/testing/selftests/bpf/test_tc_tunnel.sh
index cda5317790d2..dcf320626931 100755
--- a/tools/testing/selftests/bpf/test_tc_tunnel.sh
+++ b/tools/testing/selftests/bpf/test_tc_tunnel.sh
@@ -97,13 +97,11 @@ if [[ "$#" -eq "0" ]]; then
echo "ip6 gre"
$0 ipv6 ip6gre 100
- # disabled until passes SKB_GSO_DODGY checks
- # echo "ip gre gso"
- # $0 ipv4 gre 2000
+ echo "ip gre gso"
+ $0 ipv4 gre 2000
- # disabled until passes SKB_GSO_DODGY checks
- # echo "ip6 gre gso"
- # $0 ipv6 ip6gre 2000
+ echo "ip6 gre gso"
+ $0 ipv6 ip6gre 2000
echo "OK. All tests passed"
exit 0