netdev - [PATCH net-next v6 1/2] tls: wait for receiving next skb for sk

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Date: Tue, 11 Jun 2024 17:13:34 +0800
From: Geliang Tang <geliang@...nel.org>
To: Andrii Nakryiko <andrii@...nel.org>,
	Eduard Zingerman <eddyz87@...il.com>,
	Mykola Lysenko <mykolal@...com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Martin KaFai Lau <martin.lau@...ux.dev>,
	Song Liu <song@...nel.org>,
	Yonghong Song <yonghong.song@...ux.dev>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...nel.org>,
	Stanislav Fomichev <sdf@...gle.com>,
	Hao Luo <haoluo@...gle.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	Boris Pismenny <borisp@...dia.com>,
	Jakub Kicinski <kuba@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Jakub Sitnicki <jakub@...udflare.com>
Cc: Geliang Tang <tanggeliang@...inos.cn>,
	bpf@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH net-next v6 1/2] tls: wait for receiving next skb for sk_redirect

From: Geliang Tang <tanggeliang@...inos.cn>

tls_sw_recvmsg() doesn't work in nonblock mode, it returns -EAGAIN in
that case. This patch fixes it, always wait for receiving the next skb
for sk_redirect.

Signed-off-by: Geliang Tang <tanggeliang@...inos.cn>
---
 net/tls/tls_sw.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 305a412785f5..d2558856ceeb 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -2099,6 +2099,8 @@ int tls_sw_recvmsg(struct sock *sk,
 					rxm->full_len = 0;
 					if (err == __SK_DROP)
 						consume_skb(skb);
+					if (err == __SK_REDIRECT && flags & MSG_DONTWAIT)
+						tls_rx_rec_wait(sk, psock, false, released);
 					continue;
 				}
 			}
-- 
2.43.0