netdev - [PATCH net] net: Implement missing SO_TIMESTAMPING

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Date: Tue, 2 Jan 2024 22:13:50 +0100
From: Thomas Lange <thomas@...elatus.se>
To: netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Willem de Bruijn <willemdebruijn.kernel@...il.com>,
 jthinz@...lbox.tu-berlin.de, arnd@...db.de, deepa.kernel@...il.com,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Subject: [PATCH net] net: Implement missing SO_TIMESTAMPING_NEW cmsg support

Commit 9718475e6908 ("socket: Add SO_TIMESTAMPING_NEW") added the new
socket option SO_TIMESTAMPING_NEW. However, it was never implemented in
__sock_cmsg_send thus breaking SO_TIMESTAMPING cmsg for platforms using
SO_TIMESTAMPING_NEW.

Fixes: 9718475e6908 ("socket: Add SO_TIMESTAMPING_NEW")
Link: https://lore.kernel.org/netdev/6a7281bf-bc4a-4f75-bb88-7011908ae471@app.fastmail.com/
Signed-off-by: Thomas Lange <thomas@...elatus.se>
---
  net/core/sock.c | 1 +
  1 file changed, 1 insertion(+)

diff --git a/net/core/sock.c b/net/core/sock.c
index 51d52859e942..d02534c77413 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2813,6 +2813,7 @@ int __sock_cmsg_send(struct sock *sk, struct cmsghdr *cmsg,
  		sockc->mark = *(u32 *)CMSG_DATA(cmsg);
  		break;
  	case SO_TIMESTAMPING_OLD:
+	case SO_TIMESTAMPING_NEW:
  		if (cmsg->cmsg_len != CMSG_LEN(sizeof(u32)))
  			return -EINVAL;

--
2.39.2