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io_uring/cmd: move net cmd into a separate file

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We keep socket io_uring command implementation in io_uring/uring_cmd.c.
Separate it from generic command code into a separate file.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/747d0519a2255bd055ae76b691d38d2b4c311001.1745843119.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2025-04-28 13:52:33 +01:00 committed by Jens Axboe
parent 27d2fed790
commit 91db6edc57
3 changed files with 84 additions and 83 deletions
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1
io_uring/Makefile
View File

@ -19,3 +19,4 @@ obj-$(CONFIG_IO_WQ) += io-wq.o
obj-$(CONFIG_FUTEX) += futex.o
obj-$(CONFIG_EPOLL) += epoll.o
obj-$(CONFIG_NET_RX_BUSY_POLL) += napi.o
obj-$(CONFIG_NET) += cmd_net.o

83
io_uring/cmd_net.c Normal file
View File

@ -0,0 +1,83 @@
#include <asm/ioctls.h>
#include <linux/io_uring/net.h>
#include <net/sock.h>
#include "uring_cmd.h"
static inline int io_uring_cmd_getsockopt(struct socket *sock,
struct io_uring_cmd *cmd,
unsigned int issue_flags)
{
const struct io_uring_sqe *sqe = cmd->sqe;
bool compat = !!(issue_flags & IO_URING_F_COMPAT);
int optlen, optname, level, err;
void __user *optval;
level = READ_ONCE(sqe->level);
if (level != SOL_SOCKET)
return -EOPNOTSUPP;
optval = u64_to_user_ptr(READ_ONCE(sqe->optval));
optname = READ_ONCE(sqe->optname);
optlen = READ_ONCE(sqe->optlen);
err = do_sock_getsockopt(sock, compat, level, optname,
USER_SOCKPTR(optval),
KERNEL_SOCKPTR(&optlen));
if (err)
return err;
/* On success, return optlen */
return optlen;
}
static inline int io_uring_cmd_setsockopt(struct socket *sock,
struct io_uring_cmd *cmd,
unsigned int issue_flags)
{
const struct io_uring_sqe *sqe = cmd->sqe;
bool compat = !!(issue_flags & IO_URING_F_COMPAT);
int optname, optlen, level;
void __user *optval;
sockptr_t optval_s;
optval = u64_to_user_ptr(READ_ONCE(sqe->optval));
optname = READ_ONCE(sqe->optname);
optlen = READ_ONCE(sqe->optlen);
level = READ_ONCE(sqe->level);
optval_s = USER_SOCKPTR(optval);
return do_sock_setsockopt(sock, compat, level, optname, optval_s,
optlen);
}
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->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;
case SOCKET_URING_OP_GETSOCKOPT:
return io_uring_cmd_getsockopt(sock, cmd, issue_flags);
case SOCKET_URING_OP_SETSOCKOPT:
return io_uring_cmd_setsockopt(sock, cmd, issue_flags);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(io_uring_cmd_sock);

83
io_uring/uring_cmd.c
View File

@ -3,13 +3,10 @@
#include <linux/errno.h>
#include <linux/file.h>
#include <linux/io_uring/cmd.h>
#include <linux/io_uring/net.h>
#include <linux/security.h>
#include <linux/nospec.h>
#include <net/sock.h>
#include <uapi/linux/io_uring.h>
#include <asm/ioctls.h>
#include "io_uring.h"
#include "alloc_cache.h"
@ -302,83 +299,3 @@ void io_uring_cmd_issue_blocking(struct io_uring_cmd *ioucmd)
io_req_queue_iowq(req);
}
static inline int io_uring_cmd_getsockopt(struct socket *sock,
struct io_uring_cmd *cmd,
unsigned int issue_flags)
{
const struct io_uring_sqe *sqe = cmd->sqe;
bool compat = !!(issue_flags & IO_URING_F_COMPAT);
int optlen, optname, level, err;
void __user *optval;
level = READ_ONCE(sqe->level);
if (level != SOL_SOCKET)
return -EOPNOTSUPP;
optval = u64_to_user_ptr(READ_ONCE(sqe->optval));
optname = READ_ONCE(sqe->optname);
optlen = READ_ONCE(sqe->optlen);
err = do_sock_getsockopt(sock, compat, level, optname,
USER_SOCKPTR(optval),
KERNEL_SOCKPTR(&optlen));
if (err)
return err;
/* On success, return optlen */
return optlen;
}
static inline int io_uring_cmd_setsockopt(struct socket *sock,
struct io_uring_cmd *cmd,
unsigned int issue_flags)
{
const struct io_uring_sqe *sqe = cmd->sqe;
bool compat = !!(issue_flags & IO_URING_F_COMPAT);
int optname, optlen, level;
void __user *optval;
sockptr_t optval_s;
optval = u64_to_user_ptr(READ_ONCE(sqe->optval));
optname = READ_ONCE(sqe->optname);
optlen = READ_ONCE(sqe->optlen);
level = READ_ONCE(sqe->level);
optval_s = USER_SOCKPTR(optval);
return do_sock_setsockopt(sock, compat, level, optname, optval_s,
optlen);
}
#if defined(CONFIG_NET)
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->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;
case SOCKET_URING_OP_GETSOCKOPT:
return io_uring_cmd_getsockopt(sock, cmd, issue_flags);
case SOCKET_URING_OP_SETSOCKOPT:
return io_uring_cmd_setsockopt(sock, cmd, issue_flags);
default:
return -EOPNOTSUPP;
}
}
EXPORT_SYMBOL_GPL(io_uring_cmd_sock);
#endif