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| author | Martin KaFai Lau <[email protected]> | 2020-10-19 19:42:19 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <[email protected]> | 2020-10-19 22:57:42 +0000 |
| commit | e710bcc6d92c47bb7d8e803b41ef529c09ad6a9e (patch) | |
| tree | c83dcb9413a9726858cbe2fe501bf2ed604ce858 /scripts/bpf_helpers_doc.py | |
| parent | bpf: Enforce id generation for all may-be-null register type (diff) | |
| download | kernel-e710bcc6d92c47bb7d8e803b41ef529c09ad6a9e.tar.gz kernel-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 <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'scripts/bpf_helpers_doc.py')
0 files changed, 0 insertions, 0 deletions