Move definitions of 'struct kuser' and 'struct ksem' from uipc_sem.c

to ksem.h so that they are accessible from the MAC Framework for the
purposes of labeling and enforcing additional protections.  #error
if these are included without _KERNEL, since they are not intended
(nor installed) for user application use.

Submitted by:	Dandekar Hrishikesh <rishi_dandekar at sbcglobal dot net>
Sponsored by:	DARPA, SPARTA
Obtained from:	TrustedBSD Project

1 files changed, 55 insertions, 0 deletions

diff --git a/sys/posix4/ksem.h b/sys/posix4/ksem.h
new file mode 100644
index 0000000..29b0a53
--- /dev/null
+++ b/sys/posix4/ksem.h
@@ -0,0 +1,55 @@
+/*-
+ * Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _POSIX4_KSEM_H_
+#define	_POSIX4_KSEM_H_
+
+#ifndef _KERNEL
+#error "no user-servicable parts inside"
+#endif
+
+struct kuser {
+	pid_t ku_pid;
+	LIST_ENTRY(kuser) ku_next;
+};
+
+struct ksem {
+	LIST_ENTRY(ksem) ks_entry;	/* global list entry */
+	int ks_onlist;			/* boolean if on a list (ks_entry) */
+	char *ks_name;			/* if named, this is the name */
+	int ks_ref;			/* number of references */
+	mode_t ks_mode;			/* protection bits */
+	uid_t ks_uid;			/* creator uid */
+	gid_t ks_gid;			/* creator gid */
+	unsigned int ks_value;		/* current value */
+	struct cv ks_cv;		/* waiters sleep here */
+	int ks_waiters;			/* number of waiters */
+	LIST_HEAD(, kuser) ks_users;	/* pids using this sem */
+};
+
+#endif /* !_POSIX4_KSEM_H_ */