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bpf: sync bpf.h to tools and update bpf_helpers.h

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This patch syncs the uapi bpf.h to tools/ and also updates
bpf_herlpers.h in tools/

Signed-off-by: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
brakmo 2019-03-01 12:38:47 -08:00 committed by Alexei Starovoitov
parent f7c917ba11
commit 5cce85c640
2 changed files with 11 additions and 1 deletions
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10
tools/include/uapi/linux/bpf.h
View File

@ -2359,6 +2359,13 @@ union bpf_attr {
* Return
* A **struct bpf_tcp_sock** pointer on success, or NULL in
* case of failure.
*
* int bpf_skb_ecn_set_ce(struct sk_buf *skb)
* Description
* Sets ECN of IP header to ce (congestion encountered) if
* current value is ect (ECN capable). Works with IPv6 and IPv4.
* Return
* 1 if set, 0 if not set.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@ -2457,7 +2464,8 @@ union bpf_attr {
FN(spin_lock), \
FN(spin_unlock), \
FN(sk_fullsock), \
FN(tcp_sock),
FN(tcp_sock), \
FN(skb_ecn_set_ce),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call

2
tools/testing/selftests/bpf/bpf_helpers.h
View File

@ -180,6 +180,8 @@ static struct bpf_sock *(*bpf_sk_fullsock)(struct bpf_sock *sk) =
(void *) BPF_FUNC_sk_fullsock;
static struct bpf_tcp_sock *(*bpf_tcp_sock)(struct bpf_sock *sk) =
(void *) BPF_FUNC_tcp_sock;
static int (*bpf_skb_ecn_set_ce)(void *ctx) =
(void *) BPF_FUNC_skb_ecn_set_ce;
/* llvm builtin functions that eBPF C program may use to
* emit BPF_LD_ABS and BPF_LD_IND instructions