BSD 4_3 release

[unix-history] / usr / src / sys / h / reboot.h

diff --git a/usr/src/sys/h/reboot.h b/usr/src/sys/h/reboot.h
index a3973af..1776012 100644 (file)
--- a/usr/src/sys/h/reboot.h
+++ b/usr/src/sys/h/reboot.h
@@ -1,4 +1,10 @@
-/*     reboot.h        6.1     83/07/29        */
+/*
+ * Copyright (c) 1982, 1986 Regents of the University of California.
+ * All rights reserved.  The Berkeley software License Agreement
+ * specifies the terms and conditions for redistribution.
+ *
+ *     @(#)reboot.h    7.1 (Berkeley) 6/4/86
+ */

 
 /*
  * Arguments to reboot system call.
 
 /*
  * Arguments to reboot system call.


@@ -12,6 +18,25 @@
 #define        RB_NOSYNC       0x04    /* dont sync before reboot */
 #define        RB_HALT         0x08    /* don't reboot, just halt */
 #define        RB_INITNAME     0x10    /* name given for /etc/init */
 #define        RB_NOSYNC       0x04    /* dont sync before reboot */
 #define        RB_HALT         0x08    /* don't reboot, just halt */
 #define        RB_INITNAME     0x10    /* name given for /etc/init */

+#define        RB_DFLTROOT     0x20    /* use compiled-in rootdev */

 
 #define        RB_PANIC        0       /* reboot due to panic */
 #define        RB_BOOT         1       /* reboot due to boot() */
 
 #define        RB_PANIC        0       /* reboot due to panic */
 #define        RB_BOOT         1       /* reboot due to boot() */

+
+/*
+ * Constants for converting boot-style device number to type,
+ * adaptor (uba, mba, etc), unit number and partition number.
+ * Type (== major device number) is in the low byte
+ * for backward compatibility.  Except for that of the "magic
+ * number", each mask applies to the shifted value.
+ */
+#define        B_ADAPTORSHIFT  24
+#define        B_ADAPTORMASK   0x0f
+#define B_UNITSHIFT    16
+#define B_UNITMASK     0xff
+#define B_PARTITIONSHIFT 8
+#define B_PARTITIONMASK        0xff
+#define        B_TYPESHIFT     0
+#define        B_TYPEMASK      0xff
+#define        B_MAGICMASK     0xf0000000
+#define        B_DEVMAGIC      0xa0000000