Make linux(4) warn about unsupported CMSG level/type.
MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D25255
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=362176
@ -1042,8 +1042,12 @@ linux_sendmsg_common(struct thread *td, l_int s, struct l_msghdr *msghdr,
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cmsg->cmsg_level =
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linux_to_bsd_sockopt_level(linux_cmsg.cmsg_level);
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if (cmsg->cmsg_type == -1
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|| cmsg->cmsg_level != SOL_SOCKET)
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|| cmsg->cmsg_level != SOL_SOCKET) {
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linux_msg(curthread,
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"unsupported sendmsg cmsg level %d type %d",
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linux_cmsg.cmsg_level, linux_cmsg.cmsg_type);
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goto bad;
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}
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/*
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* Some applications (e.g. pulseaudio) attempt to
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@ -1228,6 +1232,9 @@ linux_recvmsg_common(struct thread *td, l_int s, struct l_msghdr *msghdr,
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bsd_to_linux_sockopt_level(cm->cmsg_level);
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if (linux_cmsg->cmsg_type == -1 ||
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cm->cmsg_level != SOL_SOCKET) {
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linux_msg(curthread,
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"unsupported recvmsg cmsg level %d type %d",
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cm->cmsg_level, cm->cmsg_type);
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error = EINVAL;
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goto bad;
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}
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