netdev - [PATCH 0/3] Introduce getsockname io_uring

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Message-ID: <20251024154901.797262-1-krisman@suse.de>
Date: Fri, 24 Oct 2025 11:48:57 -0400
From: Gabriel Krisman Bertazi <krisman@...e.de>
To: Jens Axboe <axboe@...nel.dk>
Cc: Gabriel Krisman Bertazi <krisman@...e.de>,
	netdev@...r.kernel.org,
	io-uring@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH 0/3] Introduce getsockname io_uring_cmd

This feature has been requested a few times in the liburing repository
and Discord channels, such as in [1,2].  If anything, it also helps
solve a long standing issue in the bind-listen test that results in
occasional test failures.

The patchset is divided in three parts: Patch 1 merges the getpeername
and getsockname implementation in the network layer, making further
patches easier; Patch 2 splits out a helper used by io_uring, like done
for other network commands; Finally, patch 3 plumbs the new command in
io_uring.

The syscall path was tested by booting a Linux distro, which does all
sorts of getsockname/getpeername syscalls.  The io_uring side was tested
with a couple of new liburing subtests available at:

   https://github.com/krisman/liburing.git -b socket

Based on top of Jens' for-next.

[1] https://github.com/axboe/liburing/issues/1356
[2] https://discord.com/channels/1241076672589991966/1241076672589991970/1429975797912830074

---

Gabriel Krisman Bertazi (3):
  socket: Unify getsockname and getpeername implementation
  socket: Split out a getsockname helper for io_uring
  io_uring: Introduce getsockname io_uring cmd

 include/linux/socket.h        |  6 +--
 include/uapi/linux/io_uring.h |  1 +
 io_uring/cmd_net.c            | 24 ++++++++++++
 net/compat.c                  |  4 +-
 net/socket.c                  | 69 +++++++++++------------------------
 5 files changed, 52 insertions(+), 52 deletions(-)

-- 
2.51.0