bpf: Sync bpf.h to tools/

This patch sync the uapi bpf.h to tools/.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 3c38ac9..983b25c 100644 (file)
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2366,6 +2366,14 @@ union bpf_attr {
  *             current value is ect (ECN capable). Works with IPv6 and IPv4.
  *     Return
  *             1 if set, 0 if not set.
+ *
+ * struct bpf_sock *bpf_get_listener_sock(struct bpf_sock *sk)
+ *     Description
+ *             Return a **struct bpf_sock** pointer in TCP_LISTEN state.
+ *             bpf_sk_release() is unnecessary and not allowed.
+ *     Return
+ *             A **struct bpf_sock** pointer on success, or NULL in
+ *             case of failure.
  */
 #define __BPF_FUNC_MAPPER(FN)          \
        FN(unspec),                     \
@@ -2465,7 +2473,8 @@ union bpf_attr {
        FN(spin_unlock),                \
        FN(sk_fullsock),                \
        FN(tcp_sock),                   \
-       FN(skb_ecn_set_ce),
+       FN(skb_ecn_set_ce),             \
+       FN(get_listener_sock),
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call