1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #pragma weak uadmin = _uadmin 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate /* 32*0Sstevel@tonic-gate * Wrapper function to implement reboot w/ arguments on x86 33*0Sstevel@tonic-gate * platforms. Extract reboot arguments and place them in 34*0Sstevel@tonic-gate * in a transient entry in /[stub]boot/grub/menu.lst 35*0Sstevel@tonic-gate * All other commands are passed through. 36*0Sstevel@tonic-gate */ 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #include "synonyms.h" 39*0Sstevel@tonic-gate #include <fcntl.h> 40*0Sstevel@tonic-gate #include <ctype.h> 41*0Sstevel@tonic-gate #include <stdio.h> 42*0Sstevel@tonic-gate #include <stdlib.h> 43*0Sstevel@tonic-gate #include <sys/types.h> 44*0Sstevel@tonic-gate #include <sys/stat.h> 45*0Sstevel@tonic-gate #include <sys/uadmin.h> 46*0Sstevel@tonic-gate #include <unistd.h> 47*0Sstevel@tonic-gate #include <string.h> 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate #define MAX_BOOTARG 256 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate static int 52*0Sstevel@tonic-gate legal_arg(char *bargs) 53*0Sstevel@tonic-gate { 54*0Sstevel@tonic-gate int i; 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate for (i = 0; i < MAX_BOOTARG; i++, bargs++) { 57*0Sstevel@tonic-gate if (*bargs == 0 && i > 0) 58*0Sstevel@tonic-gate return (i); 59*0Sstevel@tonic-gate if (!isprint(*bargs)) 60*0Sstevel@tonic-gate break; 61*0Sstevel@tonic-gate } 62*0Sstevel@tonic-gate return (-1); 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate static char quote[] = "\'"; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate int 68*0Sstevel@tonic-gate uadmin(int cmd, int fcn, uintptr_t mdep) 69*0Sstevel@tonic-gate { 70*0Sstevel@tonic-gate extern int __uadmin(int cmd, int fcn, uintptr_t mdep); 71*0Sstevel@tonic-gate char *bargs, cmdbuf[256]; 72*0Sstevel@tonic-gate struct stat sbuf; 73*0Sstevel@tonic-gate char *altroot; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate bargs = (char *)mdep; 76*0Sstevel@tonic-gate if (geteuid() == 0 && (cmd == A_SHUTDOWN || cmd == A_REBOOT)) { 77*0Sstevel@tonic-gate switch (fcn) { 78*0Sstevel@tonic-gate case AD_IBOOT: 79*0Sstevel@tonic-gate case AD_SBOOT: 80*0Sstevel@tonic-gate case AD_SIBOOT: 81*0Sstevel@tonic-gate /* 82*0Sstevel@tonic-gate * These functions fabricate appropriate bootargs. 83*0Sstevel@tonic-gate * If bootargs are passed in, map these functions 84*0Sstevel@tonic-gate * to AD_BOOT. 85*0Sstevel@tonic-gate */ 86*0Sstevel@tonic-gate if (bargs == 0) { 87*0Sstevel@tonic-gate switch (fcn) { 88*0Sstevel@tonic-gate case AD_IBOOT: 89*0Sstevel@tonic-gate bargs = "-a"; 90*0Sstevel@tonic-gate break; 91*0Sstevel@tonic-gate case AD_SBOOT: 92*0Sstevel@tonic-gate bargs = "-s"; 93*0Sstevel@tonic-gate break; 94*0Sstevel@tonic-gate case AD_SIBOOT: 95*0Sstevel@tonic-gate bargs = "-sa"; 96*0Sstevel@tonic-gate break; 97*0Sstevel@tonic-gate } 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate /*FALLTHROUGH*/ 100*0Sstevel@tonic-gate case AD_BOOT: 101*0Sstevel@tonic-gate if (bargs == 0) 102*0Sstevel@tonic-gate break; /* no args */ 103*0Sstevel@tonic-gate if (legal_arg(bargs) < 0) 104*0Sstevel@tonic-gate break; /* bad args */ 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate /* check for /stubboot */ 107*0Sstevel@tonic-gate if (stat("/stubboot/boot/grub/menu.lst", &sbuf) == 0) { 108*0Sstevel@tonic-gate altroot = "-R /stubboot "; 109*0Sstevel@tonic-gate } else { 110*0Sstevel@tonic-gate altroot = ""; 111*0Sstevel@tonic-gate } 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate /* are we rebooting to a GRUB menu entry? */ 114*0Sstevel@tonic-gate if (isdigit(bargs[0])) { 115*0Sstevel@tonic-gate int entry = strtol(bargs, NULL, 10); 116*0Sstevel@tonic-gate (void) snprintf(cmdbuf, sizeof (cmdbuf), 117*0Sstevel@tonic-gate "/sbin/bootadm set-menu %sdefault=%d", 118*0Sstevel@tonic-gate altroot, entry); 119*0Sstevel@tonic-gate } else { 120*0Sstevel@tonic-gate (void) snprintf(cmdbuf, sizeof (cmdbuf), 121*0Sstevel@tonic-gate "/sbin/bootadm -m update_temp %s" 122*0Sstevel@tonic-gate "-o %s%s%s", altroot, quote, bargs, quote); 123*0Sstevel@tonic-gate } 124*0Sstevel@tonic-gate (void) system(cmdbuf); 125*0Sstevel@tonic-gate } 126*0Sstevel@tonic-gate } 127*0Sstevel@tonic-gate return (__uadmin(cmd, fcn, mdep)); 128*0Sstevel@tonic-gate } 129