From: Cong Wang <xiyou.wangcong@gmail.com>
To: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org, duanxiongchun@bytedance.com,
wangdongdong.6@bytedance.com, jiang.wang@bytedance.com,
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 10/19] af_unix: implement ->sendmsg_locked for dgram socket
Date: Tue, 2 Feb 2021 20:16:27 -0800 [thread overview]
Message-ID: <20210203041636.38555-11-xiyou.wangcong@gmail.com> (raw)
In-Reply-To: <20210203041636.38555-1-xiyou.wangcong@gmail.com>
From: Cong Wang <cong.wang@bytedance.com>
We already have unix_dgram_sendmsg(), we can just build
its ->sendmsg_locked() on top of it.
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, 11 insertions(+), 3 deletions(-)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 41c3303c3357..4e1fa4ecbcfb 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -659,6 +659,7 @@ static ssize_t unix_stream_sendpage(struct socket *, struct page *, int offset,
static ssize_t unix_stream_splice_read(struct socket *, loff_t *ppos,
struct pipe_inode_info *, size_t size,
unsigned int flags);
+static int __unix_dgram_sendmsg(struct sock*, struct msghdr *, size_t);
static int unix_dgram_sendmsg(struct socket *, struct msghdr *, size_t);
static int unix_dgram_recvmsg(struct socket *, struct msghdr *, size_t, int);
static int unix_dgram_connect(struct socket *, struct sockaddr *,
@@ -738,6 +739,7 @@ static const struct proto_ops unix_dgram_ops = {
.listen = sock_no_listen,
.shutdown = unix_shutdown,
.sendmsg = unix_dgram_sendmsg,
+ .sendmsg_locked = __unix_dgram_sendmsg,
.recvmsg = unix_dgram_recvmsg,
.mmap = sock_no_mmap,
.sendpage = sock_no_sendpage,
@@ -1611,10 +1613,10 @@ static void scm_stat_del(struct sock *sk, struct sk_buff *skb)
* Send AF_UNIX data.
*/
-static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg,
- size_t len)
+static int __unix_dgram_sendmsg(struct sock *sk, struct msghdr *msg,
+ size_t len)
{
- struct sock *sk = sock->sk;
+ struct socket *sock = sk->sk_socket;
struct net *net = sock_net(sk);
struct unix_sock *u = unix_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, msg->msg_name);
@@ -1814,6 +1816,12 @@ static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg,
return err;
}
+static int unix_dgram_sendmsg(struct socket *sock, struct msghdr *msg,
+ size_t len)
+{
+ return __unix_dgram_sendmsg(sock->sk, msg, len);
+}
+
/* We use paged skbs for stream sockets, and limit occupancy to 32768
* bytes, and a minimum of a full page.
*/
--
2.25.1
next prev parent reply other threads:[~2021-02-03 4:20 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-03 4:16 [Patch bpf-next 00/19] sock_map: add non-TCP and cross-protocol support Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 01/19] bpf: rename BPF_STREAM_PARSER to BPF_SOCK_MAP Cong Wang
2021-02-05 10:32 ` Jakub Sitnicki
2021-02-09 1:40 ` Cong Wang
2021-02-08 8:21 ` John Fastabend
2021-02-08 9:50 ` Lorenz Bauer
2021-02-09 1:45 ` Cong Wang
2021-02-09 6:48 ` John Fastabend
2021-02-03 4:16 ` [Patch bpf-next 02/19] skmsg: get rid of struct sk_psock_parser Cong Wang
2021-02-05 11:25 ` Jakub Sitnicki
2021-02-08 8:39 ` John Fastabend
2021-02-09 0:19 ` Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 03/19] skmsg: use skb ext instead of TCP_SKB_CB Cong Wang
2021-02-05 22:09 ` Jakub Sitnicki
2021-02-08 18:56 ` Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 04/19] sock_map: rename skb_parser and skb_verdict Cong Wang
2021-02-08 8:27 ` John Fastabend
2021-02-03 4:16 ` [Patch bpf-next 05/19] sock_map: introduce BPF_SK_SKB_VERDICT Cong Wang
2021-02-08 8:31 ` John Fastabend
2021-02-03 4:16 ` [Patch bpf-next 06/19] sock: introduce sk_prot->update_proto() Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 07/19] udp: implement ->sendmsg_locked() Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 08/19] udp: implement ->read_sock() for sockmap Cong Wang
2021-02-08 9:48 ` Lorenz Bauer
2021-02-09 1:35 ` Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 09/19] udp: add ->read_sock() and ->sendmsg_locked() to ipv6 Cong Wang
2021-02-03 4:16 ` Cong Wang [this message]
2021-02-03 4:16 ` [Patch bpf-next 11/19] af_unix: implement ->read_sock() for sockmap Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 12/19] af_unix: implement ->update_proto() Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 13/19] af_unix: set TCP_ESTABLISHED for datagram sockets too Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 14/19] skmsg: extract __tcp_bpf_recvmsg() and tcp_bpf_wait_data() Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 15/19] udp: implement udp_bpf_recvmsg() for sockmap Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 16/19] af_unix: implement unix_dgram_bpf_recvmsg() Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 17/19] sock_map: update sock type checks Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 18/19] selftests/bpf: add test cases for unix and udp sockmap Cong Wang
2021-02-05 10:53 ` Jakub Sitnicki
2021-02-08 18:43 ` Cong Wang
2021-02-03 4:16 ` [Patch bpf-next 19/19] selftests/bpf: add test case for redirection between udp and unix Cong Wang
2021-02-03 17:48 ` [Patch bpf-next 00/19] sock_map: add non-TCP and cross-protocol support Alexei Starovoitov
2021-02-03 19:22 ` Cong Wang
2021-02-03 20:29 ` John Fastabend
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