diff options
| author | Breno Leitao <leitao@debian.org> | 2023-06-27 06:44:24 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-09 10:46:15 -0600 |
| commit | 8e9fad0e70b7b62848e0aeb1a873903b9ce4d7c4 (patch) | |
| tree | a8409a91d6a22c12bd3974b9e21e223411e78b09 /io_uring | |
| parent | f77569d22ad91dc25de294864fa5b24d37ddc149 (diff) | |
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.c | 28 |
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); |