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| author | Mark Pashmfouroush <markpash@cloudflare.com> | 2021-11-10 14:10:15 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-11-11 03:29:58 +0300 |
| commit | f89315650ba34ec6c91a8bded72796980bee2a4d (patch) | |
| tree | c860a28dda8d188d6cdc7c863942d5dd7d77b83e /tools/include | |
| parent | 1a8b597ddabe7dc25aa9defd33949d455ee9cde8 (diff) | |
| download | linux-f89315650ba34ec6c91a8bded72796980bee2a4d.tar.xz | |
bpf: Add ingress_ifindex to bpf_sk_lookup
It may be helpful to have access to the ifindex during bpf socket
lookup. An example may be to scope certain socket lookup logic to
specific interfaces, i.e. an interface may be made exempt from custom
lookup code.
Add the ifindex of the arriving connection to the bpf_sk_lookup API.
Signed-off-by: Mark Pashmfouroush <markpash@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211110111016.5670-2-markpash@cloudflare.com
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 509eee5f0393..6297eafdc40f 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -6316,6 +6316,7 @@ struct bpf_sk_lookup { __u32 local_ip4; /* Network byte order */ __u32 local_ip6[4]; /* Network byte order */ __u32 local_port; /* Host byte order */ + __u32 ingress_ifindex; /* The arriving interface. Determined by inet_iif. */ }; /* |