Add uid and cookie bpf helper to cg_skb_func_proto
BPF helper functions get_socket_cookie and get_socket_uid can be
used for network traffic classifications, among others. Expose
them also to programs of type BPF_PROG_TYPE_CGROUP_SKB. As of
commit 8f917bba00
("bpf: pass sk to helper functions") the
required skb->sk function is available at both cgroup bpf ingress
and egress hooks. With these two new helper, cg_skb_func_proto is
effectively the same as sk_filter_func_proto.
Change since V1:
Instead of add the helper to cg_skb_func_proto, redirect the
cg_skb_func_proto to sk_filter_func_proto since all helper function
in sk_filter_func_proto are applicable to cg_skb_func_proto now.
Signed-off-by: Chenbo Feng <fengc@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
f3c9d40ee1
commit
9fd0f31563
|
@ -2766,12 +2766,7 @@ xdp_func_proto(enum bpf_func_id func_id)
|
|||
static const struct bpf_func_proto *
|
||||
cg_skb_func_proto(enum bpf_func_id func_id)
|
||||
{
|
||||
switch (func_id) {
|
||||
case BPF_FUNC_skb_load_bytes:
|
||||
return &bpf_skb_load_bytes_proto;
|
||||
default:
|
||||
return bpf_base_func_proto(func_id);
|
||||
}
|
||||
return sk_filter_func_proto(func_id);
|
||||
}
|
||||
|
||||
static const struct bpf_func_proto *
|
||||
|
|
Loading…
Reference in a new issue