ioctl definitions for the vn driver.

1 files changed, 61 insertions, 0 deletions

diff --git a/sys/sys/vnioctl.h b/sys/sys/vnioctl.h
new file mode 100644
index 0000000..ace82ee
--- /dev/null
+++ b/sys/sys/vnioctl.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1988 University of Utah.
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * the Systems Programming Group of the University of Utah Computer
+ * Science Department.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$
+ *
+ *	@(#)vnioctl.h	8.1 (Berkeley) 6/10/93
+ */
+
+/*
+ * Ioctl definitions for file (vnode) disk pseudo-device.
+ */
+
+#define _PATH_VNTAB	"/etc/vntab"	/* default config file */
+
+struct vn_ioctl {
+	char	*vn_file;	/* pathname of file to mount */
+	int	vn_size;	/* (returned) size of disk */
+};
+
+/*
+ * Before you can use a unit, it must be configured with VNIOCSET.
+ * The configuration persists across opens and closes of the device;
+ * an VNIOCCLR must be used to reset a configuration.  An attempt to
+ * VNIOCSET an already active unit will return EBUSY.
+ */
+#define VNIOCSET	_IOWR('F', 0, struct vn_ioctl)	/* enable disk */
+#define VNIOCCLR	_IOW('F', 1, struct vn_ioctl)	/* disable disk */