diff options
| author | Florent Revest <revest@chromium.org> | 2021-02-10 14:14:03 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-02-12 04:44:41 +0300 |
| commit | c5dbb89fc2ac013afe67b9e4fcb3743c02b567cd (patch) | |
| tree | 717c986e70611b002a57850957d7132121c7ec9f /tools | |
| parent | 07881ccbf40cc7893869f3f170301889ddca54ac (diff) | |
| download | linux-c5dbb89fc2ac013afe67b9e4fcb3743c02b567cd.tar.xz | |
bpf: Expose bpf_get_socket_cookie to tracing programs
This needs a new helper that:
- can work in a sleepable context (using sock_gen_cookie)
- takes a struct sock pointer and checks that it's not NULL
Signed-off-by: Florent Revest <revest@chromium.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: KP Singh <kpsingh@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210210111406.785541-2-revest@chromium.org
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index dbf10bf08582..07cc2e404291 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -1673,6 +1673,14 @@ union bpf_attr { * Return * A 8-byte long unique number. * + * u64 bpf_get_socket_cookie(struct sock *sk) + * Description + * Equivalent to **bpf_get_socket_cookie**\ () helper that accepts + * *sk*, but gets socket from a BTF **struct sock**. This helper + * also works for sleepable programs. + * Return + * A 8-byte long unique number or 0 if *sk* is NULL. + * * u32 bpf_get_socket_uid(struct sk_buff *skb) * Return * The owner UID of the socket associated to *skb*. If the socket |