From: Maxim Mikityanskiy <maximmi@nvidia.com>
To: <bpf@vger.kernel.org>, Alexei Starovoitov <ast@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>, <netdev@vger.kernel.org>
Cc: Tariq Toukan <tariqt@nvidia.com>, Martin KaFai Lau <kafai@fb.com>,
"Song Liu" <songliubraving@fb.com>, Yonghong Song <yhs@fb.com>,
John Fastabend <john.fastabend@gmail.com>,
KP Singh <kpsingh@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Petar Penkov <ppenkov@google.com>,
Lorenz Bauer <lmb@cloudflare.com>,
Eric Dumazet <edumazet@google.com>,
Maxim Mikityanskiy <maximmi@nvidia.com>
Subject: [PATCH bpf v2 1/4] bpf: Use ipv6_only_sock in bpf_tcp_gen_syncookie
Date: Mon, 24 Jan 2022 17:11:43 +0200 [thread overview]
Message-ID: <20220124151146.376446-2-maximmi@nvidia.com> (raw)
In-Reply-To: <20220124151146.376446-1-maximmi@nvidia.com>
Instead of querying the sk_ipv6only field directly, use the dedicated
ipv6_only_sock helper.
Fixes: 70d66244317e ("bpf: add bpf_tcp_gen_syncookie helper")
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
---
net/core/filter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/filter.c b/net/core/filter.c
index 4603b7cd3cd1..05efa691b796 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -6848,7 +6848,7 @@ BPF_CALL_5(bpf_tcp_gen_syncookie, struct sock *, sk, void *, iph, u32, iph_len,
*/
switch (((struct iphdr *)iph)->version) {
case 4:
- if (sk->sk_family == AF_INET6 && sk->sk_ipv6only)
+ if (sk->sk_family == AF_INET6 && ipv6_only_sock(sk))
return -EINVAL;
mss = tcp_v4_get_syncookie(sk, iph, th, &cookie);
--
2.30.2
next prev parent reply other threads:[~2022-01-24 15:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-24 15:11 [PATCH bpf v2 0/4] Bugfixes for syncookie BPF helpers Maxim Mikityanskiy
2022-01-24 15:11 ` Maxim Mikityanskiy [this message]
2022-01-25 6:44 ` [PATCH bpf v2 1/4] bpf: Use ipv6_only_sock in bpf_tcp_gen_syncookie John Fastabend
2022-01-26 9:46 ` Lorenz Bauer
2022-01-27 21:33 ` Petar Penkov
2022-01-24 15:11 ` [PATCH bpf v2 2/4] bpf: Support dual-stack sockets in bpf_tcp_check_syncookie Maxim Mikityanskiy
2022-01-25 7:04 ` John Fastabend
2022-01-26 9:49 ` Lorenz Bauer
2022-01-31 13:38 ` Maxim Mikityanskiy
2022-01-24 15:11 ` [PATCH bpf v2 3/4] bpf: Use EOPNOTSUPP " Maxim Mikityanskiy
2022-01-25 7:06 ` John Fastabend
2022-01-31 13:37 ` Maxim Mikityanskiy
2022-01-31 20:55 ` John Fastabend
2022-01-24 15:11 ` [PATCH bpf v2 4/4] bpf: Fix documentation of th_len in bpf_tcp_{gen,check}_syncookie Maxim Mikityanskiy
2022-01-25 7:09 ` John Fastabend
2022-01-26 9:45 ` Lorenz Bauer
2022-01-31 13:37 ` Maxim Mikityanskiy
2022-02-01 17:02 ` Lorenz Bauer
2022-01-25 7:12 ` [PATCH bpf v2 0/4] Bugfixes for syncookie BPF helpers John Fastabend
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