f4fab42521
From Mike Grupenhoff <kashmir@vanquish.umiacs.umd.edu>, PR #2646.
314 lines
7.4 KiB
C
314 lines
7.4 KiB
C
/* $NetBSD: main.c,v 1.4 1996/09/27 02:39:46 thorpej Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <err.h>
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#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#ifdef __sparc__
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#include <fcntl.h>
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#include <kvm.h>
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#include <limits.h>
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#include <nlist.h>
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#include <machine/openpromio.h>
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struct nlist nl[] = {
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{ "_cputyp" },
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#define SYM_CPUTYP 0
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{ NULL },
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};
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static char *system = NULL;
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#endif /* __sparc__ */
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#include <machine/eeprom.h>
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#include "defs.h"
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struct keytabent eekeytab[] = {
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{ "hwupdate", 0x10, ee_hwupdate },
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{ "memsize", 0x14, ee_num8 },
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{ "memtest", 0x15, ee_num8 },
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{ "scrsize", 0x16, ee_screensize },
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{ "watchdog_reboot", 0x17, ee_truefalse },
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{ "default_boot", 0x18, ee_truefalse },
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{ "bootdev", 0x19, ee_bootdev },
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{ "kbdtype", 0x1e, ee_kbdtype },
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{ "console", 0x1f, ee_constype },
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{ "keyclick", 0x21, ee_truefalse },
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{ "diagdev", 0x22, ee_bootdev },
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{ "diagpath", 0x28, ee_diagpath },
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{ "columns", 0x50, ee_num8 },
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{ "rows", 0x51, ee_num8 },
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{ "ttya_use_baud", 0x58, ee_truefalse },
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{ "ttya_baud", 0x59, ee_num16 },
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{ "ttya_no_rtsdtr", 0x5b, ee_truefalse },
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{ "ttyb_use_baud", 0x60, ee_truefalse },
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{ "ttyb_baud", 0x61, ee_num16 },
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{ "ttyb_no_rtsdtr", 0x63, ee_truefalse },
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{ "banner", 0x68, ee_banner },
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{ "secure", 0, ee_notsupp },
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{ "bad_login", 0, ee_notsupp },
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{ "password", 0, ee_notsupp },
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{ NULL, 0, ee_notsupp },
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};
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static void action __P((char *));
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static void dump_prom __P((void));
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static void usage __P((void));
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#ifdef __sparc__
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static int getcputype __P((void));
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#endif /* __sparc__ */
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char *path_eeprom = "/dev/eeprom";
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char *path_openprom = "/dev/openprom";
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int fix_checksum = 0;
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int ignore_checksum = 0;
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int update_checksums = 0;
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int cksumfail = 0;
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u_short writecount;
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int eval = 0;
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int use_openprom = 0;
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int verbose = 0;
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extern char *__progname;
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int ch, do_stdin = 0;
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char *cp, line[BUFSIZE];
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#ifdef __sparc__
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char *optstring = "-cf:ivN:";
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#else
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char *optstring = "-cf:i";
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#endif /* __sparc__ */
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while ((ch = getopt(argc, argv, optstring)) != -1)
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switch (ch) {
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case '-':
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do_stdin = 1;
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break;
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case 'c':
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fix_checksum = 1;
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break;
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case 'f':
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path_eeprom = path_openprom = optarg;
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break;
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case 'i':
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ignore_checksum = 1;
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break;
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#ifdef __sparc__
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case 'v':
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verbose = 1;
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break;
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case 'N':
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system = optarg;
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break;
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#endif /* __sparc__ */
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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#ifdef __sparc__
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/*
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* Discard setgid setgid privileges if not the running kernel so
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* that bad guys can't print interesting stuff from kernel memory.
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*/
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if (system != NULL)
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setgid(getgid());
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if (getcputype() != CPU_SUN4)
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use_openprom = 1;
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#endif /* __sparc__ */
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if (use_openprom == 0) {
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ee_verifychecksums();
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if (fix_checksum || cksumfail)
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exit(cksumfail);
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}
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if (do_stdin) {
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while (fgets(line, BUFSIZE, stdin) != NULL) {
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if (line[0] == '\n')
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continue;
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if ((cp = strrchr(line, '\n')) != NULL)
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*cp = '\0';
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action(line);
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}
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if (ferror(stdin))
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err(++eval, "stdin");
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} else {
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if (argc == 0) {
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dump_prom();
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exit(eval + cksumfail);
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}
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while (argc) {
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action(*argv);
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++argv;
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--argc;
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}
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}
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if (use_openprom == 0)
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if (update_checksums) {
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++writecount;
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ee_updatechecksums();
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}
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exit(eval + cksumfail);
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}
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#ifdef __sparc__
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#define KVM_ABORT(kd, str) { \
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(void)kvm_close((kd)); \
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errx(1, "%s: %s", (str), kvm_geterr((kd))); \
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}
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static int
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getcputype()
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{
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char errbuf[_POSIX2_LINE_MAX];
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int cputype;
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kvm_t *kd;
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bzero(errbuf, sizeof(errbuf));
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if ((kd = kvm_openfiles(system, NULL, NULL, O_RDONLY, errbuf)) == NULL)
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errx(1, "can't open kvm: %s", errbuf);
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if (kvm_nlist(kd, nl))
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KVM_ABORT(kd, "can't read symbol table");
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if (kvm_read(kd, nl[SYM_CPUTYP].n_value, (char *)&cputype,
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sizeof(cputype)) != sizeof(cputype))
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KVM_ABORT(kd, "can't determine cpu type");
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(void)kvm_close(kd);
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return (cputype);
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}
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#endif /* __sparc__ */
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/*
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* Separate the keyword from the argument (if any), find the keyword in
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* the table, and call the corresponding handler function.
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*/
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static void
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action(line)
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char *line;
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{
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char *keyword, *arg, *cp;
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struct keytabent *ktent;
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keyword = strdup(line);
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if ((arg = strrchr(keyword, '=')) != NULL)
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*arg++ = '\0';
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#ifdef __sparc__
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if (use_openprom) {
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/*
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* The whole point of the Openprom is that one
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* isn't required to know the keywords. With this
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* in mind, we just dump the whole thing off to
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* the generic op_handler.
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*/
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if ((cp = op_handler(keyword, arg)) != NULL)
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warnx(cp);
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return;
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} else
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#endif /* __sparc__ */
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for (ktent = eekeytab; ktent->kt_keyword != NULL; ++ktent) {
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if (strcmp(ktent->kt_keyword, keyword) == 0) {
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(*ktent->kt_handler)(ktent, arg);
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return;
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}
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}
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warnx("unknown keyword %s", keyword);
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++eval;
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}
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/*
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* Dump the contents of the prom corresponding to all known keywords.
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*/
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static void
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dump_prom()
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{
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struct keytabent *ktent;
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#ifdef __sparc__
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if (use_openprom) {
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/*
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* We have a special dump routine for this.
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*/
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op_dump();
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} else
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#endif /* __sparc__ */
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for (ktent = eekeytab; ktent->kt_keyword != NULL; ++ktent)
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(*ktent->kt_handler)(ktent, NULL);
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}
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static void
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usage()
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{
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#ifdef __sparc__
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fprintf(stderr, "usage: %s %s %s\n", __progname,
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"[-] [-c] [-f device] [-i] [-v]",
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"[-N system] [field[=value] ...]");
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#else
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fprintf(stderr, "usage: %s %s\n", __progname,
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"[-] [-c] [-f device] [-i] [field[=value] ...]");
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#endif /* __sparc__ */
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exit(1);
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}
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