www.pudn.com > tcpipsim.rar > reboot.h
/* * Copyright (c) 1982, 1986, 1988, 1993 * The Regents of the University of California. 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. * 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. * * @(#)reboot.h 8.1 (Berkeley) 6/2/93 */ /* * Arguments to reboot system call. * These are passed to boot program in r11, * and on to init. */ #define RB_AUTOBOOT 0 /* flags for system auto-booting itself */ #define RB_ASKNAME 0x01 /* ask for file name to reboot from */ #define RB_SINGLE 0x02 /* reboot to single user only */ #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 (unused) */ #define RB_DFLTROOT 0x20 /* use compiled-in rootdev */ #define RB_KDB 0x40 /* give control to kernel debugger */ #define RB_RDONLY 0x80 /* mount root fs read-only */ #define RB_DUMP 0x100 /* dump kernel memory before reboot */ #define RB_MINIROOT 0x200 /* mini-root present in memory at boot time */ /* * 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. * Format: * (4) (4) (4) (4) (8) (8) * -------------------------------- * |MA | AD| CT| UN| PART | TYPE | * -------------------------------- */ #define B_ADAPTORSHIFT 24 #define B_ADAPTORMASK 0x0f #define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK) #define B_CONTROLLERSHIFT 20 #define B_CONTROLLERMASK 0xf #define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK) #define B_UNITSHIFT 16 #define B_UNITMASK 0xf #define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK) #define B_PARTITIONSHIFT 8 #define B_PARTITIONMASK 0xff #define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK) #define B_TYPESHIFT 0 #define B_TYPEMASK 0xff #define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK) #define B_MAGICMASK ((u_long)0xf0000000) #define B_DEVMAGIC ((u_long)0xa0000000) #define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \ (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \ ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \ ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)