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authorBreno Leitao <leitao@debian.org>2023-06-27 16:44:24 +0300
committerJens Axboe <axboe@kernel.dk>2023-08-09 19:46:15 +0300
commit8e9fad0e70b7b62848e0aeb1a873903b9ce4d7c4 (patch)
treea8409a91d6a22c12bd3974b9e21e223411e78b09 /io_uring
parentf77569d22ad91dc25de294864fa5b24d37ddc149 (diff)
downloadlinux-8e9fad0e70b7b62848e0aeb1a873903b9ce4d7c4.tar.xz
io_uring: Add io_uring command support for sockets
Enable io_uring commands on network sockets. Create two new SOCKET_URING_OP commands that will operate on sockets. In order to call ioctl on sockets, use the file_operations->io_uring_cmd callbacks, and map it to a uring socket function, which handles the SOCKET_URING_OP accordingly, and calls socket ioctls. This patches was tested by creating a new test case in liburing. Link: https://github.com/leitao/liburing/tree/io_uring_cmd Signed-off-by: Breno Leitao <leitao@debian.org> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20230627134424.2784797-1-leitao@debian.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
-rw-r--r--io_uring/uring_cmd.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 476c7877ce58..8e7a03c1b20e 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -7,6 +7,7 @@
#include <linux/nospec.h>
#include <uapi/linux/io_uring.h>
+#include <uapi/asm-generic/ioctls.h>
#include "io_uring.h"
#include "rsrc.h"
@@ -164,3 +165,30 @@ int io_uring_cmd_import_fixed(u64 ubuf, unsigned long len, int rw,
return io_import_fixed(rw, iter, req->imu, ubuf, len);
}
EXPORT_SYMBOL_GPL(io_uring_cmd_import_fixed);
+
+int io_uring_cmd_sock(struct io_uring_cmd *cmd, unsigned int issue_flags)
+{
+ struct socket *sock = cmd->file->private_data;
+ struct sock *sk = sock->sk;
+ struct proto *prot = READ_ONCE(sk->sk_prot);
+ int ret, arg = 0;
+
+ if (!prot || !prot->ioctl)
+ return -EOPNOTSUPP;
+
+ switch (cmd->sqe->cmd_op) {
+ case SOCKET_URING_OP_SIOCINQ:
+ ret = prot->ioctl(sk, SIOCINQ, &arg);
+ if (ret)
+ return ret;
+ return arg;
+ case SOCKET_URING_OP_SIOCOUTQ:
+ ret = prot->ioctl(sk, SIOCOUTQ, &arg);
+ if (ret)
+ return ret;
+ return arg;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+EXPORT_SYMBOL_GPL(io_uring_cmd_sock);