diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_skb_ctx.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_skb_ctx.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_skb_ctx.c b/tools/testing/selftests/bpf/progs/test_skb_ctx.c new file mode 100644 index 000000000..c482110cf --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_skb_ctx.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +char _license[] SEC("license") = "GPL"; + +SEC("tc") +int process(struct __sk_buff *skb) +{ + #pragma clang loop unroll(full) + for (int i = 0; i < 5; i++) { + if (skb->cb[i] != i + 1) + return 1; + skb->cb[i]++; + } + skb->priority++; + skb->tstamp++; + skb->mark++; + + if (skb->wire_len != 100) + return 1; + if (skb->gso_segs != 8) + return 1; + if (skb->gso_size != 10) + return 1; + if (skb->ingress_ifindex != 11) + return 1; + if (skb->ifindex != 1) + return 1; + if (skb->hwtstamp != 11) + return 1; + + return 0; +} |