From: Kuniyuki Iwashima <kuniyu@amazon.com>
To: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
David Ahern <dsahern@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>,
Jiri Olsa <jolsa@kernel.org>, Mykola Lysenko <mykolal@fb.com>
Cc: Kuniyuki Iwashima <kuniyu@amazon.com>,
Kuniyuki Iwashima <kuni1840@gmail.com>, <bpf@vger.kernel.org>,
<netdev@vger.kernel.org>
Subject: [PATCH v3 bpf-next 01/11] tcp: Clean up reverse xmas tree in cookie_v[46]_check().
Date: Tue, 21 Nov 2023 10:42:35 -0800 [thread overview]
Message-ID: <20231121184245.69569-2-kuniyu@amazon.com> (raw)
In-Reply-To: <20231121184245.69569-1-kuniyu@amazon.com>
We will grow and cut the xmas tree in cookie_v[46]_check().
This patch cleans it up to make later patches tidy.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
---
net/ipv4/syncookies.c | 10 +++++-----
net/ipv6/syncookies.c | 12 ++++++------
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index d37282c06e3d..a0118ea76734 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -331,18 +331,18 @@ EXPORT_SYMBOL_GPL(cookie_tcp_reqsk_alloc);
struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
{
struct ip_options *opt = &TCP_SKB_CB(skb)->header.h4.opt;
+ const struct tcphdr *th = tcp_hdr(skb);
+ __u32 cookie = ntohl(th->ack_seq) - 1;
struct tcp_options_received tcp_opt;
+ struct tcp_sock *tp = tcp_sk(sk);
struct inet_request_sock *ireq;
struct tcp_request_sock *treq;
- struct tcp_sock *tp = tcp_sk(sk);
- const struct tcphdr *th = tcp_hdr(skb);
- __u32 cookie = ntohl(th->ack_seq) - 1;
- struct sock *ret = sk;
struct request_sock *req;
+ struct sock *ret = sk;
int full_space, mss;
+ struct flowi4 fl4;
struct rtable *rt;
__u8 rcv_wscale;
- struct flowi4 fl4;
u32 tsoff = 0;
int l3index;
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 12eedc6ca2cc..aa5fb5486cde 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -127,17 +127,17 @@ EXPORT_SYMBOL_GPL(__cookie_v6_check);
struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
{
+ const struct tcphdr *th = tcp_hdr(skb);
+ __u32 cookie = ntohl(th->ack_seq) - 1;
+ struct ipv6_pinfo *np = inet6_sk(sk);
struct tcp_options_received tcp_opt;
+ struct tcp_sock *tp = tcp_sk(sk);
struct inet_request_sock *ireq;
struct tcp_request_sock *treq;
- struct ipv6_pinfo *np = inet6_sk(sk);
- struct tcp_sock *tp = tcp_sk(sk);
- const struct tcphdr *th = tcp_hdr(skb);
- __u32 cookie = ntohl(th->ack_seq) - 1;
- struct sock *ret = sk;
struct request_sock *req;
- int full_space, mss;
struct dst_entry *dst;
+ struct sock *ret = sk;
+ int full_space, mss;
__u8 rcv_wscale;
u32 tsoff = 0;
int l3index;
--
2.30.2
next prev parent reply other threads:[~2023-11-21 18:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 18:42 [PATCH v3 bpf-next 00/11] bpf: tcp: Support arbitrary SYN Cookie at TC Kuniyuki Iwashima
2023-11-21 18:42 ` Kuniyuki Iwashima [this message]
2023-11-21 18:42 ` [PATCH v3 bpf-next 02/11] tcp: Cache sock_net(sk) in cookie_v[46]_check() Kuniyuki Iwashima
2023-11-22 14:23 ` Eric Dumazet
2023-11-22 18:38 ` Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 03/11] tcp: Clean up goto labels " Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 04/11] tcp: Don't pass cookie to __cookie_v[46]_check() Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 05/11] tcp: Don't initialise tp->tsoffset in tcp_get_cookie_sock() Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 06/11] tcp: Move TCP-AO bits from cookie_v[46]_check() to tcp_ao_syncookie() Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 07/11] tcp: Factorise cookie req initialisation Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 08/11] tcp: Factorise non-BPF SYN Cookie handling Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 09/11] bpf: tcp: Handle BPF SYN Cookie in cookie_v[46]_check() Kuniyuki Iwashima
2023-11-21 18:42 ` [PATCH v3 bpf-next 10/11] bpf: tcp: Support arbitrary SYN Cookie Kuniyuki Iwashima
2023-11-22 23:19 ` Martin KaFai Lau
2023-11-23 0:31 ` Kuniyuki Iwashima
2023-11-27 23:04 ` Martin KaFai Lau
2023-11-21 19:01 ` [PATCH v3 bpf-next 11/11] selftest: bpf: Test bpf_sk_assign_tcp_reqsk() Kuniyuki Iwashima
2023-11-23 8:52 ` kernel test robot
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