diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2020-10-19 12:42:19 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-10-19 15:57:42 -0700 |
| commit | e710bcc6d92c47bb7d8e803b41ef529c09ad6a9e (patch) | |
| tree | c83dcb9413a9726858cbe2fe501bf2ed604ce858 /scripts/bpf_helpers_doc.py | |
| parent | 93c230e3f5bd6e1d2b2759d582fdfe9c2731473b (diff) | |
| download | linux-stable-e710bcc6d92c47bb7d8e803b41ef529c09ad6a9e.tar.gz linux-stable-e710bcc6d92c47bb7d8e803b41ef529c09ad6a9e.tar.bz2 linux-stable-e710bcc6d92c47bb7d8e803b41ef529c09ad6a9e.zip | |
bpf: selftest: Ensure the return value of bpf_skc_to helpers must be checked
This patch tests:
int bpf_cls(struct __sk_buff *skb)
{
/* REG_6: sk
* REG_7: tp
* REG_8: req_sk
*/
sk = skb->sk;
if (!sk)
return 0;
tp = bpf_skc_to_tcp_sock(sk);
req_sk = bpf_skc_to_tcp_request_sock(sk);
if (!req_sk)
return 0;
/* !tp has not been tested, so verifier should reject. */
return *(__u8 *)tp;
}
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201019194219.1051314-1-kafai@fb.com
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
0 files changed, 0 insertions, 0 deletions