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| author |   Jens Axboe <axboe@kernel.dk> | 2019-12-02 18:50:25 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-12-03 07:03:35 -0700 |
| commit | 03b1230ca12a12e045d83b0357792075bf94a1e0 (patch) | |
| tree | 8e48065fa8fdf13dc553a39bb4d61318689d4414 /include/linux/socket.h | |
| parent | io_uring: ensure async punted read/write requests copy iovec (diff) | |
| download | wireguard-linux-03b1230ca12a12e045d83b0357792075bf94a1e0.tar.xz wireguard-linux-03b1230ca12a12e045d83b0357792075bf94a1e0.zip | |
io_uring: ensure async punted sendmsg/recvmsg requests copy data
Just like commit f67676d160c6 for read/write requests, this one ensures
that the msghdr data is fully copied if we need to punt a recvmsg or
sendmsg system call to async context.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/socket.h')
| -rw-r--r-- | include/linux/socket.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/include/linux/socket.h b/include/linux/socket.h index 4bde63021c09..903507fb901f 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -378,12 +378,19 @@ extern int __sys_recvmmsg(int fd, struct mmsghdr __user *mmsg, extern int __sys_sendmmsg(int fd, struct mmsghdr __user *mmsg, unsigned int vlen, unsigned int flags, bool forbid_cmsg_compat); -extern long __sys_sendmsg_sock(struct socket *sock, - struct user_msghdr __user *msg, +extern long __sys_sendmsg_sock(struct socket *sock, struct msghdr *msg, unsigned int flags); -extern long __sys_recvmsg_sock(struct socket *sock, - struct user_msghdr __user *msg, +extern long __sys_recvmsg_sock(struct socket *sock, struct msghdr *msg, + struct user_msghdr __user *umsg, + struct sockaddr __user *uaddr, unsigned int flags); +extern int sendmsg_copy_msghdr(struct msghdr *msg, + struct user_msghdr __user *umsg, unsigned flags, + struct iovec **iov); +extern int recvmsg_copy_msghdr(struct msghdr *msg, + struct user_msghdr __user *umsg, unsigned flags, + struct sockaddr __user **uaddr, + struct iovec **iov); /* helpers which do the actual work for syscalls */ extern int __sys_recvfrom(int fd, void __user *ubuf, size_t size, |