Author: trasz
Date: Mon Aug 24 16:21:03 2020
New Revision: 364704
URL: https://svnweb.freebsd.org/changeset/base/364704
Log:
MFC r362176:
Make linux(4) warn about unsupported CMSG level/type.
Sponsored by: The FreeBSD Foundation
Modified:
stable/12/sys/compat/linux/linux_socket.c
Directory Properties:
stable/12/ (props changed)
Modified: stable/12/sys/compat/linux/linux_socket.c
==============================================================================
--- stable/12/sys/compat/linux/linux_socket.c Mon Aug 24 16:15:12 2020
(r364703)
+++ stable/12/sys/compat/linux/linux_socket.c Mon Aug 24 16:21:03 2020
(r364704)
@@ -1041,8 +1041,12 @@ linux_sendmsg_common(struct thread *td, l_int s, struc
cmsg->cmsg_level =
linux_to_bsd_sockopt_level(linux_cmsg.cmsg_level);
if (cmsg->cmsg_type == -1
- || cmsg->cmsg_level != SOL_SOCKET)
+ || cmsg->cmsg_level != SOL_SOCKET) {
+ linux_msg(curthread,
+ "unsupported sendmsg cmsg level %d type %d",
+ linux_cmsg.cmsg_level,
linux_cmsg.cmsg_type);
goto bad;
+ }
/*
* Some applications (e.g. pulseaudio) attempt to
@@ -1227,6 +1231,9 @@ linux_recvmsg_common(struct thread *td, l_int s, struc
bsd_to_linux_sockopt_level(cm->cmsg_level);
if (linux_cmsg->cmsg_type == -1 ||
cm->cmsg_level != SOL_SOCKET) {
+ linux_msg(curthread,
+ "unsupported recvmsg cmsg level %d type %d",
+ cm->cmsg_level, cm->cmsg_type);
error = EINVAL;
goto bad;
}
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