From: François LEGAL <[email protected]> Add rtipc_get_arg (copy_from_ser) call on struct user_msghdr.
Signed-off-by: François LEGAL <[email protected]> --- kernel/drivers/ipc/xddp.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/kernel/drivers/ipc/xddp.c b/kernel/drivers/ipc/xddp.c index 57275d0..8d52720 100644 --- a/kernel/drivers/ipc/xddp.c +++ b/kernel/drivers/ipc/xddp.c @@ -335,12 +335,17 @@ out: } static ssize_t xddp_recvmsg(struct rtdm_fd *fd, - struct user_msghdr *msg, int flags) + struct user_msghdr *u_msg, int flags) { struct iovec iov_fast[RTDM_IOV_FASTMAX], *iov; struct sockaddr_ipc saddr; + struct user_msghdr _msg, *msg = & _msg; ssize_t ret; + ret = rtipc_get_arg(fd, &_msg, u_msg, sizeof(_msg)); + if (ret) + return -ret; + if (flags & ~MSG_DONTWAIT) return -EINVAL; @@ -590,14 +595,19 @@ done: } static ssize_t xddp_sendmsg(struct rtdm_fd *fd, - const struct user_msghdr *msg, int flags) + const struct user_msghdr *u_msg, int flags) { struct rtipc_private *priv = rtdm_fd_to_private(fd); struct iovec iov_fast[RTDM_IOV_FASTMAX], *iov; struct xddp_socket *sk = priv->state; struct sockaddr_ipc daddr; + struct user_msghdr _msg, *msg = & _msg; ssize_t ret; + ret = rtipc_get_arg(fd, &_msg, u_msg, sizeof(_msg)); + if (ret) + return -ret; + /* * We accept MSG_DONTWAIT, but do not care about it, since * writing to the real-time endpoint of a message pipe must be
