From: Lorenz Bauer <lmb@cloudflare.com>
To: ast@kernel.org, daniel@iogearbox.net, netdev@vger.kernel.org
Cc: linux-api@vger.kernel.org, Lorenz Bauer <lmb@cloudflare.com>
Subject: [PATCH 2/3] tools: sync changes to uapi/linux/bpf.h
Date: Fri, 22 Feb 2019 09:50:56 +0000 [thread overview]
Message-ID: <20190222095057.9442-3-lmb@cloudflare.com> (raw)
In-Reply-To: <20190222095057.9442-1-lmb@cloudflare.com>
Pull in definitions for bpf_sk_check_syncookie.
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
---
tools/include/uapi/linux/bpf.h | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index bcdd2474eee7..bc2af87e9621 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -2359,6 +2359,21 @@ union bpf_attr {
* Return
* A **struct bpf_tcp_sock** pointer on success, or NULL in
* case of failure.
+ *
+ * int bpf_sk_check_syncookie(struct bpf_sock *sk, void *iph, u32 iph_len, struct tcphdr *th, u32 th_len)
+ * Description
+ * Check whether iph and th contain a valid SYN cookie ACK for
+ * the listening socket in sk.
+ *
+ * iph points to the start of the IPv4 or IPv6 header, while
+ * iph_len contains sizeof(struct iphdr) or sizeof(struct ip6hdr).
+ *
+ * th points to the start of the TCP header, while th_len contains
+ * sizeof(struct tcphdr).
+ *
+ * Return
+ * 0 if iph and th are a valid SYN cookie ACK, or a negative error
+ * otherwise.
*/
#define __BPF_FUNC_MAPPER(FN) \
FN(unspec), \
@@ -2457,7 +2472,8 @@ union bpf_attr {
FN(spin_lock), \
FN(spin_unlock), \
FN(sk_fullsock), \
- FN(tcp_sock),
+ FN(tcp_sock), \
+ FN(sk_check_syncookie),
/* integer value in 'imm' field of BPF_CALL instruction selects which helper
* function eBPF program intends to call
--
2.19.1
next prev parent reply other threads:[~2019-02-22 9:50 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-22 9:50 [PATCH 0/3] Allow checking SYN cookies from XDP and tc cls act Lorenz Bauer
2019-02-22 9:50 ` Lorenz Bauer
2019-02-22 9:50 ` [PATCH 1/3] bpf: add helper to check for a valid SYN cookie Lorenz Bauer
2019-02-23 0:44 ` Martin Lau
2019-02-23 0:44 ` Martin Lau
2019-02-25 18:26 ` Lorenz Bauer
2019-02-26 5:37 ` Martin Lau
2019-02-28 15:11 ` Lorenz Bauer
2019-02-28 15:11 ` Lorenz Bauer
2019-02-28 17:37 ` Martin Lau
2019-02-24 11:21 ` kbuild test robot
2019-02-24 11:21 ` kbuild test robot
2019-02-24 11:37 ` kbuild test robot
2019-02-24 11:37 ` kbuild test robot
2019-02-22 9:50 ` Lorenz Bauer [this message]
2019-02-22 9:50 ` [PATCH 3/3] selftests/bpf: add tests for bpf_sk_check_syncookie Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 0/8] Allow checking SYN cookies from XDP and tc cls act Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 1/8] bpf: track references based on is_acquire_func Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 2/8] bpf: allow helpers to return PTR_TO_SOCK_COMMON Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 3/8] bpf: add skc_lookup_tcp helper Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 4/8] bpf: add helper to check for a valid SYN cookie Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 5/8] tools: update include/uapi/linux/bpf.h Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 6/8] selftests/bpf: allow specifying helper for BPF_SK_LOOKUP Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 7/8] selftests/bpf: test references to sock_common Lorenz Bauer
2019-03-14 11:39 ` [PATCH v2 8/8] selftests/bpf: add tests for bpf_tcp_check_syncookie and bpf_skc_lookup_tcp Lorenz Bauer
2019-03-15 20:42 ` [PATCH v2 0/8] Allow checking SYN cookies from XDP and tc cls act Alexei Starovoitov
2019-03-19 10:20 ` Lorenz Bauer
2019-03-19 10:20 ` [PATCH v2 1/8] bpf: track references based on is_acquire_func Lorenz Bauer
2019-03-19 10:20 ` [PATCH v2 2/8] bpf: allow helpers to return PTR_TO_SOCK_COMMON Lorenz Bauer
2019-03-19 10:20 ` [PATCH v2 3/8] bpf: add skc_lookup_tcp helper Lorenz Bauer
2019-03-19 21:30 ` Alexei Starovoitov
2019-03-19 10:20 ` [PATCH v2 4/8] bpf: add helper to check for a valid SYN cookie Lorenz Bauer
2019-03-19 22:17 ` Alexei Starovoitov
2019-03-21 2:09 ` Lorenz Bauer
2019-03-21 3:03 ` Alexei Starovoitov
2019-03-21 4:53 ` Lorenz Bauer
2019-03-21 5:50 ` Alexei Starovoitov
2019-03-19 10:21 ` [PATCH v2 5/8] tools: update include/uapi/linux/bpf.h Lorenz Bauer
2019-03-19 10:21 ` [PATCH v2 6/8] selftests/bpf: allow specifying helper for BPF_SK_LOOKUP Lorenz Bauer
2019-03-19 10:21 ` [PATCH v2 7/8] selftests/bpf: test references to sock_common Lorenz Bauer
2019-03-19 10:21 ` [PATCH v2 8/8] selftests/bpf: add tests for bpf_tcp_check_syncookie and bpf_skc_lookup_tcp Lorenz Bauer
2019-03-22 1:53 ` [PATCH bpf-next v3 0/8] Allow checking SYN cookies from XDP and tc cls act Lorenz Bauer
2019-03-22 1:53 ` [PATCH bpf-next v3 1/8] bpf: track references based on is_acquire_func Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 2/8] bpf: allow helpers to return PTR_TO_SOCK_COMMON Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 3/8] bpf: add skc_lookup_tcp helper Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 4/8] bpf: add helper to check for a valid SYN cookie Lorenz Bauer
2019-03-22 2:06 ` Alexei Starovoitov
2019-03-22 2:52 ` Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 5/8] tools: update include/uapi/linux/bpf.h Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 6/8] selftests/bpf: allow specifying helper for BPF_SK_LOOKUP Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 7/8] selftests/bpf: test references to sock_common Lorenz Bauer
2019-03-22 1:54 ` [PATCH bpf-next v3 8/8] selftests/bpf: add tests for bpf_tcp_check_syncookie and bpf_skc_lookup_tcp Lorenz Bauer
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