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authorbrakmo <brakmo@fb.com>2019-03-01 12:38:47 -0800
committerAlexei Starovoitov <ast@kernel.org>2019-03-02 10:48:27 -0800
commit5cce85c640ccc9d9aab8b05c77d7d076a44d4db2 (patch)
tree4cb1b20ca703ea4e39ab013fb3deffc467f15734 /tools
parentf7c917ba11a67632a8452ea99fe132f626a7a2cc (diff)
bpf: sync bpf.h to tools and update bpf_helpers.h
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>
Diffstat (limited to 'tools')
-rw-r--r--tools/include/uapi/linux/bpf.h10
-rw-r--r--tools/testing/selftests/bpf/bpf_helpers.h2
2 files changed, 11 insertions, 1 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 2e308e90ffea..3c38ac9a92a7 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -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
diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index 026bea831e03..c9433a496d54 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -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