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91db6edc57
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>
83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
#include <asm/ioctls.h>
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#include <linux/io_uring/net.h>
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#include <net/sock.h>
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#include "uring_cmd.h"
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static inline int io_uring_cmd_getsockopt(struct socket *sock,
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struct io_uring_cmd *cmd,
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unsigned int issue_flags)
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{
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const struct io_uring_sqe *sqe = cmd->sqe;
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bool compat = !!(issue_flags & IO_URING_F_COMPAT);
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int optlen, optname, level, err;
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void __user *optval;
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level = READ_ONCE(sqe->level);
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if (level != SOL_SOCKET)
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return -EOPNOTSUPP;
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optval = u64_to_user_ptr(READ_ONCE(sqe->optval));
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optname = READ_ONCE(sqe->optname);
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optlen = READ_ONCE(sqe->optlen);
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err = do_sock_getsockopt(sock, compat, level, optname,
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USER_SOCKPTR(optval),
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KERNEL_SOCKPTR(&optlen));
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if (err)
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return err;
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/* On success, return optlen */
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return optlen;
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}
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static inline int io_uring_cmd_setsockopt(struct socket *sock,
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struct io_uring_cmd *cmd,
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unsigned int issue_flags)
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{
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const struct io_uring_sqe *sqe = cmd->sqe;
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bool compat = !!(issue_flags & IO_URING_F_COMPAT);
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int optname, optlen, level;
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void __user *optval;
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sockptr_t optval_s;
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optval = u64_to_user_ptr(READ_ONCE(sqe->optval));
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optname = READ_ONCE(sqe->optname);
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optlen = READ_ONCE(sqe->optlen);
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level = READ_ONCE(sqe->level);
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optval_s = USER_SOCKPTR(optval);
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return do_sock_setsockopt(sock, compat, level, optname, optval_s,
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optlen);
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}
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int io_uring_cmd_sock(struct io_uring_cmd *cmd, unsigned int issue_flags)
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{
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struct socket *sock = cmd->file->private_data;
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struct sock *sk = sock->sk;
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struct proto *prot = READ_ONCE(sk->sk_prot);
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int ret, arg = 0;
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if (!prot || !prot->ioctl)
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return -EOPNOTSUPP;
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switch (cmd->cmd_op) {
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case SOCKET_URING_OP_SIOCINQ:
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ret = prot->ioctl(sk, SIOCINQ, &arg);
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if (ret)
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return ret;
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return arg;
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case SOCKET_URING_OP_SIOCOUTQ:
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ret = prot->ioctl(sk, SIOCOUTQ, &arg);
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if (ret)
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return ret;
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return arg;
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case SOCKET_URING_OP_GETSOCKOPT:
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return io_uring_cmd_getsockopt(sock, cmd, issue_flags);
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case SOCKET_URING_OP_SETSOCKOPT:
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return io_uring_cmd_setsockopt(sock, cmd, issue_flags);
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default:
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return -EOPNOTSUPP;
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}
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}
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EXPORT_SYMBOL_GPL(io_uring_cmd_sock);
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