diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_tc_link.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_tc_link.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_tc_link.c b/tools/testing/selftests/bpf/progs/test_tc_link.c index ab3eae3d6af8..630f12e51b07 100644 --- a/tools/testing/selftests/bpf/progs/test_tc_link.c +++ b/tools/testing/selftests/bpf/progs/test_tc_link.c @@ -8,6 +8,7 @@ #include <linux/if_packet.h> #include <bpf/bpf_endian.h> #include <bpf/bpf_helpers.h> +#include <bpf/bpf_core_read.h> char LICENSE[] SEC("license") = "GPL"; @@ -18,6 +19,7 @@ bool seen_tc4; bool seen_tc5; bool seen_tc6; bool seen_tc7; +bool seen_tc8; bool set_type; @@ -25,6 +27,9 @@ bool seen_eth; bool seen_host; bool seen_mcast; +int mark, prio; +unsigned short headroom, tailroom; + SEC("tc/ingress") int tc1(struct __sk_buff *skb) { @@ -100,3 +105,25 @@ out: seen_tc7 = true; return TCX_PASS; } + +struct sk_buff { + struct net_device *dev; +}; + +struct net_device { + unsigned short needed_headroom; + unsigned short needed_tailroom; +}; + +SEC("tc/egress") +int tc8(struct __sk_buff *skb) +{ + struct net_device *dev = BPF_CORE_READ((struct sk_buff *)skb, dev); + + seen_tc8 = true; + mark = skb->mark; + prio = skb->priority; + headroom = BPF_CORE_READ(dev, needed_headroom); + tailroom = BPF_CORE_READ(dev, needed_tailroom); + return TCX_PASS; +} |