diff options
| author | Liu Jian <liujian56@huawei.com> | 2022-04-16 18:58:01 +0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-04-20 23:48:34 +0200 |
| commit | 127e7dca427bc3e5d9a1c2071357e0f34be5c1d9 (patch) | |
| tree | d9bfb1a211f121ae30aa37d753370fa79a690570 /tools/testing/selftests/bpf/progs/skb_load_bytes.c | |
| parent | 92ece28072f18f30099770c5d4b8e300ea6820fa (diff) | |
| download | linux-127e7dca427bc3e5d9a1c2071357e0f34be5c1d9.tar.bz2 | |
selftests/bpf: Add test for skb_load_bytes
Use bpf_prog_test_run_opts to test the skb_load_bytes function. Tests
the behavior when offset is greater than INT_MAX or a normal value.
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20220416105801.88708-4-liujian56@huawei.com
Diffstat (limited to 'tools/testing/selftests/bpf/progs/skb_load_bytes.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/skb_load_bytes.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/skb_load_bytes.c b/tools/testing/selftests/bpf/progs/skb_load_bytes.c new file mode 100644 index 000000000000..e4252fd973be --- /dev/null +++ b/tools/testing/selftests/bpf/progs/skb_load_bytes.c @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +char _license[] SEC("license") = "GPL"; + +__u32 load_offset = 0; +int test_result = 0; + +SEC("tc") +int skb_process(struct __sk_buff *skb) +{ + char buf[16]; + + test_result = bpf_skb_load_bytes(skb, load_offset, buf, 10); + + return 0; +} |