diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/dynptr_success.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/dynptr_success.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/dynptr_success.c b/tools/testing/selftests/bpf/progs/dynptr_success.c index 8315273cb900..127dea342e5a 100644 --- a/tools/testing/selftests/bpf/progs/dynptr_success.c +++ b/tools/testing/selftests/bpf/progs/dynptr_success.c @@ -211,6 +211,61 @@ int test_dynptr_skb_data(struct __sk_buff *skb) return 1; } +SEC("?tc") +int test_dynptr_skb_meta_data(struct __sk_buff *skb) +{ + struct bpf_dynptr meta; + __u8 *md; + int ret; + + err = 1; + ret = bpf_dynptr_from_skb_meta(skb, 0, &meta); + if (ret) + return 1; + + /* This should return NULL. Must use bpf_dynptr_slice API */ + err = 2; + md = bpf_dynptr_data(&meta, 0, sizeof(*md)); + if (md) + return 1; + + err = 0; + return 1; +} + +/* Check that skb metadata dynptr ops don't accept any flags. */ +SEC("?tc") +int test_dynptr_skb_meta_flags(struct __sk_buff *skb) +{ + const __u64 INVALID_FLAGS = ~0ULL; + struct bpf_dynptr meta; + __u8 buf; + int ret; + + err = 1; + ret = bpf_dynptr_from_skb_meta(skb, INVALID_FLAGS, &meta); + if (ret != -EINVAL) + return 1; + + err = 2; + ret = bpf_dynptr_from_skb_meta(skb, 0, &meta); + if (ret) + return 1; + + err = 3; + ret = bpf_dynptr_read(&buf, 0, &meta, 0, INVALID_FLAGS); + if (ret != -EINVAL) + return 1; + + err = 4; + ret = bpf_dynptr_write(&meta, 0, &buf, 0, INVALID_FLAGS); + if (ret != -EINVAL) + return 1; + + err = 0; + return 1; +} + SEC("tp/syscalls/sys_enter_nanosleep") int test_adjust(void *ctx) { |