All of lore.kernel.org
 help / color / mirror / Atom feed
From: Cong Wang <xiyou.wangcong@gmail.com>
To: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org, Cong Wang <cong.wang@bytedance.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Jakub Sitnicki <jakub@cloudflare.com>,
	Lorenz Bauer <lmb@cloudflare.com>
Subject: [PATCH bpf-next v5 04/11] af_unix: set TCP_ESTABLISHED for datagram sockets too
Date: Sun,  4 Jul 2021 12:02:45 -0700	[thread overview]
Message-ID: <20210704190252.11866-5-xiyou.wangcong@gmail.com> (raw)
In-Reply-To: <20210704190252.11866-1-xiyou.wangcong@gmail.com>

From: Cong Wang <cong.wang@bytedance.com>

Currently only unix stream socket sets TCP_ESTABLISHED,
datagram socket can set this too when they connect to its
peer socket. At least __ip4_datagram_connect() does the same.

This will be used to determine whether an AF_UNIX datagram
socket can be redirected to in sockmap.

Cc: John Fastabend <john.fastabend@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jakub Sitnicki <jakub@cloudflare.com>
Cc: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
---
 net/unix/af_unix.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 38863468768a..77fb3910e1c3 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -494,6 +494,7 @@ static void unix_dgram_disconnected(struct sock *sk, struct sock *other)
 			sk_error_report(other);
 		}
 	}
+	sk->sk_state = other->sk_state = TCP_CLOSE;
 }
 
 static void unix_sock_destructor(struct sock *sk)
@@ -1202,6 +1203,9 @@ static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
 		unix_peer(sk) = other;
 		unix_state_double_unlock(sk, other);
 	}
+
+	if (unix_peer(sk))
+		sk->sk_state = other->sk_state = TCP_ESTABLISHED;
 	return 0;
 
 out_unlock:
@@ -1434,12 +1438,10 @@ static int unix_socketpair(struct socket *socka, struct socket *sockb)
 	init_peercred(ska);
 	init_peercred(skb);
 
-	if (ska->sk_type != SOCK_DGRAM) {
-		ska->sk_state = TCP_ESTABLISHED;
-		skb->sk_state = TCP_ESTABLISHED;
-		socka->state  = SS_CONNECTED;
-		sockb->state  = SS_CONNECTED;
-	}
+	ska->sk_state = TCP_ESTABLISHED;
+	skb->sk_state = TCP_ESTABLISHED;
+	socka->state  = SS_CONNECTED;
+	sockb->state  = SS_CONNECTED;
 	return 0;
 }
 
-- 
2.27.0


  parent reply	other threads:[~2021-07-04 19:03 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-04 19:02 [PATCH bpf-next v5 00/11] sockmap: add sockmap support for unix datagram socket Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 01/11] sock_map: relax config dependency to CONFIG_NET Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 02/11] sock_map: lift socket state restriction for datagram sockets Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 03/11] af_unix: implement ->read_sock() for sockmap Cong Wang
2021-07-12 17:04   ` John Fastabend
2021-07-04 19:02 ` Cong Wang [this message]
2021-07-04 19:02 ` [PATCH bpf-next v5 05/11] af_unix: add a dummy ->close() " Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 06/11] af_unix: implement ->psock_update_sk_prot() Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 07/11] af_unix: implement unix_dgram_bpf_recvmsg() Cong Wang
2021-07-18 17:49   ` Eric Dumazet
2021-07-20  0:03     ` Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 08/11] selftests/bpf: factor out udp_socketpair() Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 09/11] selftests/bpf: factor out add_to_sockmap() Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 10/11] selftests/bpf: add a test case for unix sockmap Cong Wang
2021-07-04 19:02 ` [PATCH bpf-next v5 11/11] selftests/bpf: add test cases for redirection between udp and unix Cong Wang
2021-08-05 22:43   ` Andrii Nakryiko
2021-08-06  2:34     ` Cong Wang
2021-07-12 17:02 ` [PATCH bpf-next v5 00/11] sockmap: add sockmap support for unix datagram socket John Fastabend
2021-07-16  1:31   ` Alexei Starovoitov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210704190252.11866-5-xiyou.wangcong@gmail.com \
    --to=xiyou.wangcong@gmail.com \
    --cc=bpf@vger.kernel.org \
    --cc=cong.wang@bytedance.com \
    --cc=daniel@iogearbox.net \
    --cc=jakub@cloudflare.com \
    --cc=john.fastabend@gmail.com \
    --cc=lmb@cloudflare.com \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.