1995-05-30 06:12:45 +00:00
|
|
|
|
/*
|
1993-06-12 14:58:17 +00:00
|
|
|
|
* Mach Operating System
|
|
|
|
|
* Copyright (c) 1992 Carnegie Mellon University
|
|
|
|
|
* All Rights Reserved.
|
1995-05-30 06:12:45 +00:00
|
|
|
|
*
|
1993-06-12 14:58:17 +00:00
|
|
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
|
|
|
* documentation is hereby granted, provided that both the copyright
|
|
|
|
|
* notice and this permission notice appear in all copies of the
|
|
|
|
|
* software, derivative works or modified versions, and any portions
|
|
|
|
|
* thereof, and that both notices appear in supporting documentation.
|
1995-05-30 06:12:45 +00:00
|
|
|
|
*
|
1993-06-12 14:58:17 +00:00
|
|
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
|
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
|
|
|
|
|
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
1995-05-30 06:12:45 +00:00
|
|
|
|
*
|
1993-06-12 14:58:17 +00:00
|
|
|
|
* Carnegie Mellon requests users of this software to return to
|
1995-05-30 06:12:45 +00:00
|
|
|
|
*
|
1993-06-12 14:58:17 +00:00
|
|
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
|
|
|
* School of Computer Science
|
|
|
|
|
* Carnegie Mellon University
|
|
|
|
|
* Pittsburgh PA 15213-3890
|
1995-05-30 06:12:45 +00:00
|
|
|
|
*
|
1993-06-12 14:58:17 +00:00
|
|
|
|
* any improvements or extensions that they make and grant Carnegie Mellon
|
|
|
|
|
* the rights to redistribute these changes.
|
|
|
|
|
*/
|
|
|
|
|
|
1998-07-06 06:44:36 +00:00
|
|
|
|
#ifndef lint
|
|
|
|
|
static const char rcsid[] =
|
1999-08-28 00:22:10 +00:00
|
|
|
|
"$FreeBSD$";
|
1998-07-06 06:44:36 +00:00
|
|
|
|
#endif /* not lint */
|
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
#include <sys/disklabel.h>
|
2001-07-13 16:48:56 +00:00
|
|
|
|
#include <sys/param.h>
|
1993-06-12 14:58:17 +00:00
|
|
|
|
#include <sys/stat.h>
|
2001-07-13 16:48:56 +00:00
|
|
|
|
#include <sys/mount.h>
|
1998-07-06 06:44:36 +00:00
|
|
|
|
#include <ctype.h>
|
1993-06-12 14:58:17 +00:00
|
|
|
|
#include <fcntl.h>
|
1998-07-06 06:44:36 +00:00
|
|
|
|
#include <err.h>
|
|
|
|
|
#include <errno.h>
|
2001-07-13 16:48:56 +00:00
|
|
|
|
#include <paths.h>
|
|
|
|
|
#include <regex.h>
|
1998-07-06 06:44:36 +00:00
|
|
|
|
#include <stdio.h>
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
|
#include <string.h>
|
1996-06-21 02:39:19 +00:00
|
|
|
|
#include <unistd.h>
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
int iotest;
|
|
|
|
|
|
|
|
|
|
#define LBUF 100
|
|
|
|
|
static char lbuf[LBUF];
|
|
|
|
|
|
2000-07-12 16:45:11 +00:00
|
|
|
|
#define MBRSIGOFF 510
|
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
/*
|
|
|
|
|
*
|
|
|
|
|
* Ported to 386bsd by Julian Elischer Thu Oct 15 20:26:46 PDT 1992
|
|
|
|
|
*
|
|
|
|
|
* 14-Dec-89 Robert Baron (rvb) at Carnegie-Mellon University
|
|
|
|
|
* Copyright (c) 1989 Robert. V. Baron
|
|
|
|
|
* Created.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#define Decimal(str, ans, tmp) if (decimal(str, &tmp, ans)) ans = tmp
|
|
|
|
|
#define Hex(str, ans, tmp) if (hex(str, &tmp, ans)) ans = tmp
|
|
|
|
|
#define String(str, ans, len) {char *z = ans; char **dflt = &z; if (string(str, dflt)) strncpy(ans, *dflt, len); }
|
|
|
|
|
|
|
|
|
|
#define RoundCyl(x) ((((x) + cylsecs - 1) / cylsecs) * cylsecs)
|
|
|
|
|
|
1996-12-01 11:25:38 +00:00
|
|
|
|
#define MAX_SEC_SIZE 2048 /* maximum section size that is supported */
|
|
|
|
|
#define MIN_SEC_SIZE 512 /* the sector size to start sensing at */
|
|
|
|
|
int secsize = 0; /* the sensed sector size */
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
2001-07-13 16:48:56 +00:00
|
|
|
|
char *disk;
|
1995-09-01 18:00:14 +00:00
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
struct disklabel disklabel; /* disk parameters */
|
|
|
|
|
|
|
|
|
|
int cyls, sectors, heads, cylsecs, disksecs;
|
|
|
|
|
|
|
|
|
|
struct mboot
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
unsigned char padding[2]; /* force the longs to be long aligned */
|
2000-07-12 16:45:11 +00:00
|
|
|
|
unsigned char *bootinst; /* boot code */
|
|
|
|
|
off_t bootinst_size;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
struct dos_partition parts[4];
|
|
|
|
|
};
|
2000-07-12 16:45:11 +00:00
|
|
|
|
struct mboot mboot = {{0}, NULL, 0};
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
#define ACTIVE 0x80
|
|
|
|
|
#define BOOT_MAGIC 0xAA55
|
|
|
|
|
|
|
|
|
|
int dos_cyls;
|
|
|
|
|
int dos_heads;
|
|
|
|
|
int dos_sectors;
|
|
|
|
|
int dos_cylsecs;
|
|
|
|
|
|
|
|
|
|
#define DOSSECT(s,c) ((s & 0x3f) | ((c >> 2) & 0xc0))
|
|
|
|
|
#define DOSCYL(c) (c & 0xff)
|
|
|
|
|
static int partition = -1;
|
|
|
|
|
|
|
|
|
|
|
1996-11-06 14:08:39 +00:00
|
|
|
|
#define MAX_ARGS 10
|
|
|
|
|
|
|
|
|
|
static int current_line_number;
|
|
|
|
|
|
|
|
|
|
static int geom_processed = 0;
|
|
|
|
|
static int part_processed = 0;
|
|
|
|
|
static int active_processed = 0;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
typedef struct cmd {
|
|
|
|
|
char cmd;
|
|
|
|
|
int n_args;
|
|
|
|
|
struct arg {
|
|
|
|
|
char argtype;
|
|
|
|
|
int arg_val;
|
|
|
|
|
} args[MAX_ARGS];
|
|
|
|
|
} CMD;
|
|
|
|
|
|
|
|
|
|
|
1999-06-27 19:29:15 +00:00
|
|
|
|
static int B_flag = 0; /* replace boot code */
|
2000-03-10 22:03:00 +00:00
|
|
|
|
static int I_flag = 0; /* use entire disk for FreeBSD */
|
1993-06-12 14:58:17 +00:00
|
|
|
|
static int a_flag = 0; /* set active partition */
|
1999-06-27 19:29:15 +00:00
|
|
|
|
static char *b_flag = NULL; /* path to boot code */
|
1993-06-12 14:58:17 +00:00
|
|
|
|
static int i_flag = 0; /* replace partition data */
|
|
|
|
|
static int u_flag = 0; /* update partition data */
|
2000-03-10 22:03:00 +00:00
|
|
|
|
static int s_flag = 0; /* Print a summary and exit */
|
1996-11-06 14:08:39 +00:00
|
|
|
|
static int t_flag = 0; /* test only, if f_flag is given */
|
|
|
|
|
static char *f_flag = NULL; /* Read config info from file */
|
|
|
|
|
static int v_flag = 0; /* Be verbose */
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
struct part_type
|
|
|
|
|
{
|
|
|
|
|
unsigned char type;
|
|
|
|
|
char *name;
|
|
|
|
|
}part_types[] =
|
|
|
|
|
{
|
1995-05-30 06:12:45 +00:00
|
|
|
|
{0x00, "unused"}
|
|
|
|
|
,{0x01, "Primary DOS with 12 bit FAT"}
|
|
|
|
|
,{0x02, "XENIX / filesystem"}
|
|
|
|
|
,{0x03, "XENIX /usr filesystem"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x04, "Primary DOS with 16 bit FAT (< 32MB)"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x05, "Extended DOS"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x06, "Primary 'big' DOS (>= 32MB)"}
|
2000-06-09 19:10:09 +00:00
|
|
|
|
,{0x07, "OS/2 HPFS, NTFS, QNX-2 (16 bit) or Advanced UNIX"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x08, "AIX filesystem or SplitDrive"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x09, "AIX boot partition or Coherent"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x0A, "OS/2 Boot Manager, OPUS or Coherent swap"}
|
1998-03-14 21:22:09 +00:00
|
|
|
|
,{0x0B, "DOS or Windows 95 with 32 bit FAT"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x0C, "DOS or Windows 95 with 32 bit FAT (LBA)"}
|
|
|
|
|
,{0x0E, "Primary 'big' DOS (>= 32MB, LBA)"}
|
|
|
|
|
,{0x0F, "Extended DOS (LBA)"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x10, "OPUS"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x11, "OS/2 BM: hidden DOS with 12-bit FAT"}
|
|
|
|
|
,{0x12, "Compaq diagnostics"}
|
|
|
|
|
,{0x14, "OS/2 BM: hidden DOS with 16-bit FAT (< 32MB)"}
|
|
|
|
|
,{0x16, "OS/2 BM: hidden DOS with 16-bit FAT (>= 32MB)"}
|
|
|
|
|
,{0x17, "OS/2 BM: hidden IFS (e.g. HPFS)"}
|
|
|
|
|
,{0x18, "AST Windows swapfile"}
|
|
|
|
|
,{0x24, "NEC DOS"}
|
|
|
|
|
,{0x3C, "PartitionMagic recovery"}
|
2000-06-12 09:08:40 +00:00
|
|
|
|
,{0x39, "plan9"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x40, "VENIX 286"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x41, "Linux/MINIX (sharing disk with DRDOS)"}
|
|
|
|
|
,{0x42, "SFS or Linux swap (sharing disk with DRDOS)"}
|
|
|
|
|
,{0x43, "Linux native (sharing disk with DRDOS)"}
|
2000-06-09 19:10:09 +00:00
|
|
|
|
,{0x4D, "QNX 4.2 Primary"}
|
|
|
|
|
,{0x4E, "QNX 4.2 Secondary"}
|
|
|
|
|
,{0x4F, "QNX 4.2 Tertiary"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x50, "DM (disk manager)"}
|
|
|
|
|
,{0x51, "DM6 Aux1 (or Novell)"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x52, "CP/M or Microport SysV/AT"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x53, "DM6 Aux3"}
|
|
|
|
|
,{0x54, "DM6"}
|
|
|
|
|
,{0x55, "EZ-Drive (disk manager)"}
|
|
|
|
|
,{0x56, "Golden Bow (disk manager)"}
|
|
|
|
|
,{0x5c, "Priam Edisk (disk manager)"} /* according to S. Widlake */
|
|
|
|
|
,{0x61, "SpeedStor"}
|
|
|
|
|
,{0x63, "System V/386 (such as ISC UNIX), GNU HURD or Mach"}
|
|
|
|
|
,{0x64, "Novell Netware/286 2.xx"}
|
|
|
|
|
,{0x65, "Novell Netware/386 3.xx"}
|
|
|
|
|
,{0x70, "DiskSecure Multi-Boot"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x75, "PCIX"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x77, "QNX4.x"}
|
|
|
|
|
,{0x78, "QNX4.x 2nd part"}
|
|
|
|
|
,{0x79, "QNX4.x 3rd part"}
|
|
|
|
|
,{0x80, "Minix until 1.4a"}
|
|
|
|
|
,{0x81, "Minix since 1.4b, early Linux partition or Mitac (disk manager)"}
|
1998-09-16 19:25:47 +00:00
|
|
|
|
,{0x82, "Linux swap or Solaris x86"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0x83, "Linux native"}
|
|
|
|
|
,{0x84, "OS/2 hidden C: drive"}
|
|
|
|
|
,{0x85, "Linux extended"}
|
|
|
|
|
,{0x86, "NTFS volume set??"}
|
|
|
|
|
,{0x87, "NTFS volume set??"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0x93, "Amoeba filesystem"}
|
|
|
|
|
,{0x94, "Amoeba bad block table"}
|
1998-11-06 03:25:56 +00:00
|
|
|
|
,{0x9F, "BSD/OS"}
|
2000-08-07 00:26:09 +00:00
|
|
|
|
,{0xA0, "Suspend to Disk"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0xA5, "FreeBSD/NetBSD/386BSD"}
|
1997-05-02 03:08:04 +00:00
|
|
|
|
,{0xA6, "OpenBSD"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0xA7, "NeXTSTEP"}
|
1998-11-06 03:43:21 +00:00
|
|
|
|
,{0xA9, "NetBSD"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0xB7, "BSDI BSD/386 filesystem"}
|
|
|
|
|
,{0xB8, "BSDI BSD/386 swap"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0xC1, "DRDOS/sec with 12-bit FAT"}
|
|
|
|
|
,{0xC4, "DRDOS/sec with 16-bit FAT (< 32MB)"}
|
|
|
|
|
,{0xC6, "DRDOS/sec with 16-bit FAT (>= 32MB)"}
|
|
|
|
|
,{0xC7, "Syrinx"}
|
|
|
|
|
,{0xDB, "CP/M, Concurrent CP/M, Concurrent DOS or CTOS"}
|
|
|
|
|
,{0xE1, "DOS access or SpeedStor with 12-bit FAT extended partition"}
|
|
|
|
|
,{0xE3, "DOS R/O or SpeedStor"}
|
|
|
|
|
,{0xE4, "SpeedStor with 16-bit FAT extended partition < 1024 cyl."}
|
|
|
|
|
,{0xEB, "BeOS filesystem"}
|
2001-10-15 07:21:32 +00:00
|
|
|
|
,{0xEE, "EFI GPT"}
|
2001-10-16 10:52:12 +00:00
|
|
|
|
,{0xEF, "EFI System Partition"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0xF1, "SpeedStor"}
|
1995-05-30 06:12:45 +00:00
|
|
|
|
,{0xF2, "DOS 3.3+ Secondary"}
|
2002-02-18 19:32:38 +00:00
|
|
|
|
,{0xF4, "SpeedStor large partition"}
|
|
|
|
|
,{0xFE, "SpeedStor >1024 cyl. or LANstep"}
|
|
|
|
|
,{0xFF, "Xenix bad blocks table"}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
};
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void print_s0(int which);
|
|
|
|
|
static void print_part(int i);
|
|
|
|
|
static void init_sector0(unsigned long start);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
static void init_boot(void);
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void change_part(int i);
|
|
|
|
|
static void print_params();
|
|
|
|
|
static void change_active(int which);
|
1999-01-22 11:54:17 +00:00
|
|
|
|
static void change_code();
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void get_params_to_use();
|
2001-07-13 16:48:56 +00:00
|
|
|
|
static char *get_rootdisk(void);
|
2001-08-05 16:24:13 +00:00
|
|
|
|
static void dos(struct dos_partition *partp);
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int open_disk(int u_flag);
|
|
|
|
|
static ssize_t read_disk(off_t sector, void *buf);
|
|
|
|
|
static ssize_t write_disk(off_t sector, void *buf);
|
|
|
|
|
static int get_params();
|
|
|
|
|
static int read_s0();
|
|
|
|
|
static int write_s0();
|
|
|
|
|
static int ok(char *str);
|
|
|
|
|
static int decimal(char *str, int *num, int deflt);
|
|
|
|
|
static char *get_type(int type);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
static int read_config(char *config_file);
|
|
|
|
|
static void reset_boot(void);
|
2000-08-24 17:54:45 +00:00
|
|
|
|
static int sanitize_partition(struct dos_partition *);
|
1998-07-06 06:44:36 +00:00
|
|
|
|
static void usage(void);
|
1996-06-21 02:39:19 +00:00
|
|
|
|
#if 0
|
|
|
|
|
static int hex(char *str, int *num, int deflt);
|
|
|
|
|
static int string(char *str, char **ans);
|
|
|
|
|
#endif
|
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
int
|
|
|
|
|
main(int argc, char *argv[])
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
2001-07-13 16:48:56 +00:00
|
|
|
|
struct stat sb;
|
1999-06-27 19:29:15 +00:00
|
|
|
|
int c, i;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
2000-03-10 22:03:00 +00:00
|
|
|
|
while ((c = getopt(argc, argv, "BIab:f:istuv1234")) != -1)
|
1999-06-27 19:29:15 +00:00
|
|
|
|
switch (c) {
|
|
|
|
|
case 'B':
|
|
|
|
|
B_flag = 1;
|
|
|
|
|
break;
|
2000-03-10 22:03:00 +00:00
|
|
|
|
case 'I':
|
|
|
|
|
I_flag = 1;
|
|
|
|
|
break;
|
1999-06-27 19:29:15 +00:00
|
|
|
|
case 'a':
|
|
|
|
|
a_flag = 1;
|
|
|
|
|
break;
|
|
|
|
|
case 'b':
|
|
|
|
|
b_flag = optarg;
|
|
|
|
|
break;
|
|
|
|
|
case 'f':
|
|
|
|
|
f_flag = optarg;
|
|
|
|
|
break;
|
|
|
|
|
case 'i':
|
|
|
|
|
i_flag = 1;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
break;
|
2000-03-10 22:03:00 +00:00
|
|
|
|
case 's':
|
|
|
|
|
s_flag = 1;
|
|
|
|
|
break;
|
1999-06-27 19:29:15 +00:00
|
|
|
|
case 't':
|
|
|
|
|
t_flag = 1;
|
|
|
|
|
break;
|
|
|
|
|
case 'u':
|
|
|
|
|
u_flag = 1;
|
|
|
|
|
break;
|
|
|
|
|
case 'v':
|
|
|
|
|
v_flag = 1;
|
|
|
|
|
break;
|
|
|
|
|
case '1':
|
|
|
|
|
case '2':
|
|
|
|
|
case '3':
|
|
|
|
|
case '4':
|
|
|
|
|
partition = c - '0';
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
usage();
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
1999-06-27 19:29:15 +00:00
|
|
|
|
if (f_flag || i_flag)
|
|
|
|
|
u_flag = 1;
|
|
|
|
|
if (t_flag)
|
|
|
|
|
v_flag = 1;
|
|
|
|
|
argc -= optind;
|
|
|
|
|
argv += optind;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
2001-07-13 16:48:56 +00:00
|
|
|
|
if (argc == 0) {
|
|
|
|
|
disk = get_rootdisk();
|
|
|
|
|
} else {
|
|
|
|
|
if (stat(argv[0], &sb) == 0) {
|
|
|
|
|
/* OK, full pathname given */
|
|
|
|
|
disk = argv[0];
|
|
|
|
|
} else if (errno == ENOENT) {
|
|
|
|
|
/* Try prepending "/dev" */
|
|
|
|
|
if ((disk = malloc(strlen(argv[0]) + strlen(_PATH_DEV) +
|
|
|
|
|
1)) == NULL)
|
|
|
|
|
errx(1, "out of memory");
|
|
|
|
|
strcpy(disk, _PATH_DEV);
|
|
|
|
|
strcat(disk, argv[0]);
|
|
|
|
|
} else {
|
|
|
|
|
/* other stat error, let it fail below */
|
1995-09-01 18:00:14 +00:00
|
|
|
|
disk = argv[0];
|
|
|
|
|
}
|
|
|
|
|
}
|
2001-07-13 16:48:56 +00:00
|
|
|
|
if (open_disk(u_flag) < 0)
|
|
|
|
|
err(1, "cannot open disk %s", disk);
|
2000-07-12 16:45:11 +00:00
|
|
|
|
|
|
|
|
|
/* (abu)use mboot.bootinst to probe for the sector size */
|
|
|
|
|
if ((mboot.bootinst = malloc(MAX_SEC_SIZE)) == NULL)
|
|
|
|
|
err(1, "cannot allocate buffer to determine disk sector size");
|
|
|
|
|
read_disk(0, mboot.bootinst);
|
2000-07-17 19:51:42 +00:00
|
|
|
|
free(mboot.bootinst);
|
|
|
|
|
mboot.bootinst = NULL;
|
2000-07-12 16:45:11 +00:00
|
|
|
|
|
2000-03-10 22:03:00 +00:00
|
|
|
|
if (s_flag)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
|
|
|
|
|
if (read_s0())
|
|
|
|
|
err(1, "read_s0");
|
|
|
|
|
printf("%s: %d cyl %d hd %d sec\n", disk, dos_cyls, dos_heads,
|
|
|
|
|
dos_sectors);
|
|
|
|
|
printf("Part %11s %11s Type Flags\n", "Start", "Size");
|
|
|
|
|
for (i = 0; i < NDOSPART; i++) {
|
|
|
|
|
partp = ((struct dos_partition *) &mboot.parts) + i;
|
|
|
|
|
if (partp->dp_start == 0 && partp->dp_size == 0)
|
|
|
|
|
continue;
|
|
|
|
|
printf("%4d: %11lu %11lu 0x%02x 0x%02x\n", i + 1,
|
|
|
|
|
(u_long) partp->dp_start,
|
|
|
|
|
(u_long) partp->dp_size, partp->dp_typ,
|
|
|
|
|
partp->dp_flag);
|
|
|
|
|
}
|
|
|
|
|
exit(0);
|
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
printf("******* Working on device %s *******\n",disk);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
|
2000-03-10 22:03:00 +00:00
|
|
|
|
if (I_flag)
|
1999-08-23 11:06:19 +00:00
|
|
|
|
{
|
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
|
|
|
|
|
read_s0();
|
|
|
|
|
reset_boot();
|
|
|
|
|
partp = (struct dos_partition *) (&mboot.parts[0]);
|
|
|
|
|
partp->dp_typ = DOSPTYP_386BSD;
|
|
|
|
|
partp->dp_flag = ACTIVE;
|
|
|
|
|
partp->dp_start = dos_sectors;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
partp->dp_size = (disksecs / dos_cylsecs) * dos_cylsecs -
|
|
|
|
|
dos_sectors;
|
1999-08-23 11:06:19 +00:00
|
|
|
|
|
2001-08-05 16:24:13 +00:00
|
|
|
|
dos(partp);
|
1999-08-23 11:06:19 +00:00
|
|
|
|
if (v_flag)
|
|
|
|
|
print_s0(-1);
|
|
|
|
|
write_s0();
|
|
|
|
|
exit(0);
|
|
|
|
|
}
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (f_flag)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (read_s0() || i_flag)
|
|
|
|
|
{
|
|
|
|
|
reset_boot();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (!read_config(f_flag))
|
|
|
|
|
{
|
|
|
|
|
exit(1);
|
|
|
|
|
}
|
|
|
|
|
if (v_flag)
|
|
|
|
|
{
|
|
|
|
|
print_s0(-1);
|
|
|
|
|
}
|
|
|
|
|
if (!t_flag)
|
|
|
|
|
{
|
|
|
|
|
write_s0();
|
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if(u_flag)
|
|
|
|
|
{
|
|
|
|
|
get_params_to_use();
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1993-06-12 14:58:17 +00:00
|
|
|
|
print_params();
|
1996-11-06 14:08:39 +00:00
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (read_s0())
|
2000-08-24 17:54:45 +00:00
|
|
|
|
init_sector0(dos_sectors);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1996-12-01 11:25:38 +00:00
|
|
|
|
printf("Media sector size is %d\n", secsize);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
printf("Warning: BIOS sector numbering starts with sector 1\n");
|
|
|
|
|
printf("Information from DOS bootblock is:\n");
|
|
|
|
|
if (partition == -1)
|
1997-06-03 21:24:39 +00:00
|
|
|
|
for (i = 1; i <= NDOSPART; i++)
|
1996-11-06 14:08:39 +00:00
|
|
|
|
change_part(i);
|
|
|
|
|
else
|
1993-06-12 14:58:17 +00:00
|
|
|
|
change_part(partition);
|
|
|
|
|
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (u_flag || a_flag)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
change_active(partition);
|
|
|
|
|
|
1999-06-27 19:29:15 +00:00
|
|
|
|
if (B_flag)
|
1999-01-22 11:54:17 +00:00
|
|
|
|
change_code();
|
|
|
|
|
|
1999-06-27 19:29:15 +00:00
|
|
|
|
if (u_flag || a_flag || B_flag) {
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (!t_flag)
|
|
|
|
|
{
|
|
|
|
|
printf("\nWe haven't changed the partition table yet. ");
|
|
|
|
|
printf("This is your last chance.\n");
|
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
print_s0(-1);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (!t_flag)
|
|
|
|
|
{
|
|
|
|
|
if (ok("Should we write new partition table?"))
|
1993-06-12 14:58:17 +00:00
|
|
|
|
write_s0();
|
1996-11-06 14:08:39 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
printf("\n-t flag specified -- partition table not written.\n");
|
|
|
|
|
}
|
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
exit(0);
|
1998-07-06 06:44:36 +00:00
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1998-07-06 06:44:36 +00:00
|
|
|
|
static void
|
|
|
|
|
usage()
|
|
|
|
|
{
|
1999-06-27 19:29:15 +00:00
|
|
|
|
fprintf(stderr, "%s%s",
|
2000-06-27 20:36:44 +00:00
|
|
|
|
"usage: fdisk [-BIaistu] [-b bootcode] [-1234] [disk]\n",
|
1999-06-27 19:29:15 +00:00
|
|
|
|
" fdisk -f configfile [-itv] [disk]\n");
|
1998-07-06 06:44:36 +00:00
|
|
|
|
exit(1);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
|
|
|
|
print_s0(int which)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
print_params();
|
|
|
|
|
printf("Information from DOS bootblock is:\n");
|
|
|
|
|
if (which == -1)
|
1997-06-03 21:24:39 +00:00
|
|
|
|
for (i = 1; i <= NDOSPART; i++)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
printf("%d: ", i), print_part(i);
|
|
|
|
|
else
|
|
|
|
|
print_part(which);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static struct dos_partition mtpart = { 0 };
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
|
|
|
|
print_part(int i)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
1997-06-02 19:25:48 +00:00
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
u_int64_t part_mb;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1997-06-03 21:24:39 +00:00
|
|
|
|
partp = ((struct dos_partition *) &mboot.parts) + i - 1;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
if (!bcmp(partp, &mtpart, sizeof (struct dos_partition))) {
|
|
|
|
|
printf("<UNUSED>\n");
|
|
|
|
|
return;
|
|
|
|
|
}
|
1997-06-02 19:25:48 +00:00
|
|
|
|
/*
|
|
|
|
|
* Be careful not to overflow.
|
|
|
|
|
*/
|
|
|
|
|
part_mb = partp->dp_size;
|
|
|
|
|
part_mb *= secsize;
|
|
|
|
|
part_mb /= (1024 * 1024);
|
2002-02-18 19:32:38 +00:00
|
|
|
|
printf("sysid %d (%#04x),(%s)\n", partp->dp_typ, partp->dp_typ,
|
|
|
|
|
get_type(partp->dp_typ));
|
1998-06-28 20:48:03 +00:00
|
|
|
|
printf(" start %lu, size %lu (%qd Meg), flag %x%s\n",
|
|
|
|
|
(u_long)partp->dp_start,
|
|
|
|
|
(u_long)partp->dp_size,
|
1997-06-02 19:25:48 +00:00
|
|
|
|
part_mb,
|
1998-03-29 23:41:51 +00:00
|
|
|
|
partp->dp_flag,
|
|
|
|
|
partp->dp_flag == ACTIVE ? " (active)" : "");
|
2000-11-29 20:22:47 +00:00
|
|
|
|
printf("\tbeg: cyl %d/ head %d/ sector %d;\n\tend: cyl %d/ head %d/ sector %d\n"
|
1993-06-12 14:58:17 +00:00
|
|
|
|
,DPCYL(partp->dp_scyl, partp->dp_ssect)
|
|
|
|
|
,partp->dp_shd
|
2000-11-29 20:22:47 +00:00
|
|
|
|
,DPSECT(partp->dp_ssect)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
,DPCYL(partp->dp_ecyl, partp->dp_esect)
|
2000-11-29 20:22:47 +00:00
|
|
|
|
,partp->dp_ehd
|
|
|
|
|
,DPSECT(partp->dp_esect));
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
1996-11-06 14:08:39 +00:00
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
init_boot(void)
|
|
|
|
|
{
|
1999-06-27 19:29:15 +00:00
|
|
|
|
const char *fname;
|
2000-07-12 16:45:11 +00:00
|
|
|
|
int fd, n;
|
|
|
|
|
struct stat sb;
|
1999-06-27 19:29:15 +00:00
|
|
|
|
|
|
|
|
|
fname = b_flag ? b_flag : "/boot/mbr";
|
|
|
|
|
if ((fd = open(fname, O_RDONLY)) == -1 ||
|
2000-07-12 16:45:11 +00:00
|
|
|
|
fstat(fd, &sb) == -1)
|
|
|
|
|
err(1, "%s", fname);
|
|
|
|
|
if ((mboot.bootinst_size = sb.st_size) % secsize != 0)
|
|
|
|
|
errx(1, "%s: length must be a multiple of sector size", fname);
|
2000-07-15 13:37:47 +00:00
|
|
|
|
if (mboot.bootinst != NULL)
|
|
|
|
|
free(mboot.bootinst);
|
2000-07-12 16:45:11 +00:00
|
|
|
|
if ((mboot.bootinst = malloc(mboot.bootinst_size = sb.st_size)) == NULL)
|
|
|
|
|
errx(1, "%s: unable to allocate read buffer", fname);
|
|
|
|
|
if ((n = read(fd, mboot.bootinst, mboot.bootinst_size)) == -1 ||
|
1999-06-27 19:29:15 +00:00
|
|
|
|
close(fd))
|
|
|
|
|
err(1, "%s", fname);
|
2000-07-12 16:45:11 +00:00
|
|
|
|
if (n != mboot.bootinst_size)
|
|
|
|
|
errx(1, "%s: short read", fname);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
|
|
|
|
init_sector0(unsigned long start)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
struct dos_partition *partp = (struct dos_partition *) (&mboot.parts[3]);
|
|
|
|
|
|
1996-11-06 14:08:39 +00:00
|
|
|
|
init_boot();
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
partp->dp_typ = DOSPTYP_386BSD;
|
|
|
|
|
partp->dp_flag = ACTIVE;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
start = ((start + dos_sectors - 1) / dos_sectors) * dos_sectors;
|
2000-07-12 16:45:11 +00:00
|
|
|
|
if(start == 0)
|
|
|
|
|
start = dos_sectors;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
partp->dp_start = start;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
partp->dp_size = (disksecs / dos_cylsecs) * dos_cylsecs - start;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
2001-08-05 16:24:13 +00:00
|
|
|
|
dos(partp);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
|
|
|
|
change_part(int i)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
1997-06-03 21:24:39 +00:00
|
|
|
|
struct dos_partition *partp = ((struct dos_partition *) &mboot.parts) + i - 1;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
|
|
|
|
printf("The data for partition %d is:\n", i);
|
|
|
|
|
print_part(i);
|
|
|
|
|
|
|
|
|
|
if (u_flag && ok("Do you want to change it?")) {
|
|
|
|
|
int tmp;
|
|
|
|
|
|
|
|
|
|
if (i_flag) {
|
|
|
|
|
bzero((char *)partp, sizeof (struct dos_partition));
|
1997-06-03 21:24:39 +00:00
|
|
|
|
if (i == 4) {
|
1993-06-12 14:58:17 +00:00
|
|
|
|
init_sector0(1);
|
1997-06-03 21:24:39 +00:00
|
|
|
|
printf("\nThe static data for the DOS partition 4 has been reinitialized to:\n");
|
1993-06-12 14:58:17 +00:00
|
|
|
|
print_part(i);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
do {
|
1998-03-29 23:41:51 +00:00
|
|
|
|
Decimal("sysid (165=FreeBSD)", partp->dp_typ, tmp);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
Decimal("start", partp->dp_start, tmp);
|
|
|
|
|
Decimal("size", partp->dp_size, tmp);
|
2001-08-05 16:24:13 +00:00
|
|
|
|
if (!sanitize_partition(partp)) {
|
|
|
|
|
warnx("ERROR: failed to adjust; setting sysid to 0");
|
|
|
|
|
partp->dp_typ = 0;
|
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1998-05-20 22:23:16 +00:00
|
|
|
|
if (ok("Explicitly specify beg/end address ?"))
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
int tsec,tcyl,thd;
|
|
|
|
|
tcyl = DPCYL(partp->dp_scyl,partp->dp_ssect);
|
|
|
|
|
thd = partp->dp_shd;
|
|
|
|
|
tsec = DPSECT(partp->dp_ssect);
|
|
|
|
|
Decimal("beginning cylinder", tcyl, tmp);
|
2000-11-18 02:55:43 +00:00
|
|
|
|
Decimal("beginning head", thd, tmp);
|
2000-11-29 20:22:47 +00:00
|
|
|
|
Decimal("beginning sector", tsec, tmp);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
partp->dp_scyl = DOSCYL(tcyl);
|
|
|
|
|
partp->dp_ssect = DOSSECT(tsec,tcyl);
|
|
|
|
|
partp->dp_shd = thd;
|
|
|
|
|
|
|
|
|
|
tcyl = DPCYL(partp->dp_ecyl,partp->dp_esect);
|
|
|
|
|
thd = partp->dp_ehd;
|
|
|
|
|
tsec = DPSECT(partp->dp_esect);
|
|
|
|
|
Decimal("ending cylinder", tcyl, tmp);
|
2000-11-18 02:55:43 +00:00
|
|
|
|
Decimal("ending head", thd, tmp);
|
2000-11-29 20:22:47 +00:00
|
|
|
|
Decimal("ending sector", tsec, tmp);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
partp->dp_ecyl = DOSCYL(tcyl);
|
|
|
|
|
partp->dp_esect = DOSSECT(tsec,tcyl);
|
|
|
|
|
partp->dp_ehd = thd;
|
2001-08-05 16:24:13 +00:00
|
|
|
|
} else
|
|
|
|
|
dos(partp);
|
1995-05-30 06:12:45 +00:00
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
print_part(i);
|
|
|
|
|
} while (!ok("Are we happy with this entry?"));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
1993-06-12 14:58:17 +00:00
|
|
|
|
print_params()
|
|
|
|
|
{
|
|
|
|
|
printf("parameters extracted from in-core disklabel are:\n");
|
|
|
|
|
printf("cylinders=%d heads=%d sectors/track=%d (%d blks/cyl)\n\n"
|
|
|
|
|
,cyls,heads,sectors,cylsecs);
|
|
|
|
|
if((dos_sectors > 63) || (dos_cyls > 1023) || (dos_heads > 255))
|
1996-12-01 11:25:38 +00:00
|
|
|
|
printf("Figures below won't work with BIOS for partitions not in cyl 1\n");
|
1993-06-12 14:58:17 +00:00
|
|
|
|
printf("parameters to be used for BIOS calculations are:\n");
|
|
|
|
|
printf("cylinders=%d heads=%d sectors/track=%d (%d blks/cyl)\n\n"
|
|
|
|
|
,dos_cyls,dos_heads,dos_sectors,dos_cylsecs);
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
|
|
|
|
change_active(int which)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
2001-08-05 16:24:13 +00:00
|
|
|
|
struct dos_partition *partp = &mboot.parts[0];
|
|
|
|
|
int active, i, new, tmp;
|
|
|
|
|
|
|
|
|
|
active = -1;
|
|
|
|
|
for (i = 0; i < NDOSPART; i++) {
|
|
|
|
|
if ((partp[i].dp_flag & ACTIVE) == 0)
|
|
|
|
|
continue;
|
|
|
|
|
printf("Partition %d is marked active\n", i + 1);
|
|
|
|
|
if (active == -1)
|
|
|
|
|
active = i + 1;
|
|
|
|
|
}
|
1993-06-12 14:58:17 +00:00
|
|
|
|
if (a_flag && which != -1)
|
|
|
|
|
active = which;
|
2001-08-05 16:24:13 +00:00
|
|
|
|
else if (active == -1)
|
|
|
|
|
active = 1;
|
|
|
|
|
|
1994-10-19 21:25:28 +00:00
|
|
|
|
if (!ok("Do you want to change the active partition?"))
|
|
|
|
|
return;
|
1998-03-29 23:41:51 +00:00
|
|
|
|
setactive:
|
|
|
|
|
do {
|
2001-08-05 16:24:13 +00:00
|
|
|
|
new = active;
|
|
|
|
|
Decimal("active partition", new, tmp);
|
|
|
|
|
if (new < 1 || new > 4) {
|
1998-03-29 23:41:51 +00:00
|
|
|
|
printf("Active partition number must be in range 1-4."
|
|
|
|
|
" Try again.\n");
|
|
|
|
|
goto setactive;
|
|
|
|
|
}
|
2001-08-05 16:24:13 +00:00
|
|
|
|
active = new;
|
1998-03-29 23:41:51 +00:00
|
|
|
|
} while (!ok("Are you happy with this choice"));
|
1993-06-12 14:58:17 +00:00
|
|
|
|
for (i = 0; i < NDOSPART; i++)
|
|
|
|
|
partp[i].dp_flag = 0;
|
1997-06-03 21:24:39 +00:00
|
|
|
|
if (active > 0 && active <= NDOSPART)
|
|
|
|
|
partp[active-1].dp_flag = ACTIVE;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
1999-01-22 11:54:17 +00:00
|
|
|
|
static void
|
|
|
|
|
change_code()
|
|
|
|
|
{
|
|
|
|
|
if (ok("Do you want to change the boot code?"))
|
|
|
|
|
init_boot();
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
void
|
1993-06-12 14:58:17 +00:00
|
|
|
|
get_params_to_use()
|
|
|
|
|
{
|
|
|
|
|
int tmp;
|
|
|
|
|
print_params();
|
|
|
|
|
if (ok("Do you want to change our idea of what BIOS thinks ?"))
|
|
|
|
|
{
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
Decimal("BIOS's idea of #cylinders", dos_cyls, tmp);
|
|
|
|
|
Decimal("BIOS's idea of #heads", dos_heads, tmp);
|
|
|
|
|
Decimal("BIOS's idea of #sectors", dos_sectors, tmp);
|
|
|
|
|
dos_cylsecs = dos_heads * dos_sectors;
|
|
|
|
|
print_params();
|
|
|
|
|
}
|
|
|
|
|
while(!ok("Are you happy with this choice"));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1996-11-06 14:08:39 +00:00
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
/***********************************************\
|
|
|
|
|
* Change real numbers into strange dos numbers *
|
|
|
|
|
\***********************************************/
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static void
|
2001-08-05 16:24:13 +00:00
|
|
|
|
dos(partp)
|
|
|
|
|
struct dos_partition *partp;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
2001-08-05 16:24:13 +00:00
|
|
|
|
int cy, sec;
|
|
|
|
|
u_int32_t end;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
2001-12-30 18:51:51 +00:00
|
|
|
|
if (partp->dp_typ == 0 && partp->dp_start == 0 && partp->dp_size == 0) {
|
|
|
|
|
memcpy(partp, &mtpart, sizeof(*partp));
|
1994-10-19 21:25:28 +00:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2001-08-05 16:24:13 +00:00
|
|
|
|
/* Start c/h/s. */
|
|
|
|
|
partp->dp_shd = partp->dp_start % dos_cylsecs / dos_sectors;
|
|
|
|
|
cy = partp->dp_start / dos_cylsecs;
|
|
|
|
|
sec = partp->dp_start % dos_sectors + 1;
|
|
|
|
|
partp->dp_scyl = DOSCYL(cy);
|
|
|
|
|
partp->dp_ssect = DOSSECT(sec, cy);
|
|
|
|
|
|
|
|
|
|
/* End c/h/s. */
|
|
|
|
|
end = partp->dp_start + partp->dp_size - 1;
|
|
|
|
|
partp->dp_ehd = end % dos_cylsecs / dos_sectors;
|
|
|
|
|
cy = end / dos_cylsecs;
|
|
|
|
|
sec = end % dos_sectors + 1;
|
|
|
|
|
partp->dp_ecyl = DOSCYL(cy);
|
|
|
|
|
partp->dp_esect = DOSSECT(sec, cy);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
|
|
/* Getting device status */
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
|
|
|
|
open_disk(int u_flag)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
2001-07-05 10:04:43 +00:00
|
|
|
|
struct stat st;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1995-05-30 06:12:45 +00:00
|
|
|
|
if (stat(disk, &st) == -1) {
|
2001-07-05 10:04:43 +00:00
|
|
|
|
if (errno == ENOENT)
|
|
|
|
|
return -2;
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("can't get file status of %s", disk);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
return -1;
|
1994-09-15 20:19:51 +00:00
|
|
|
|
}
|
|
|
|
|
if ( !(st.st_mode & S_IFCHR) )
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("device %s is not character special", disk);
|
1999-01-22 11:54:17 +00:00
|
|
|
|
if ((fd = open(disk,
|
2000-03-10 22:03:00 +00:00
|
|
|
|
a_flag || I_flag || B_flag || u_flag ? O_RDWR : O_RDONLY)) == -1) {
|
1995-09-01 18:00:14 +00:00
|
|
|
|
if(errno == ENXIO)
|
|
|
|
|
return -2;
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("can't open device %s", disk);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
if (get_params(0) == -1) {
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("can't get disk parameters on %s", disk);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
return -1;
|
|
|
|
|
}
|
|
|
|
|
return fd;
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static ssize_t
|
|
|
|
|
read_disk(off_t sector, void *buf)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
lseek(fd,(sector * 512), 0);
|
1996-12-01 11:25:38 +00:00
|
|
|
|
if( secsize == 0 )
|
|
|
|
|
for( secsize = MIN_SEC_SIZE; secsize <= MAX_SEC_SIZE; secsize *= 2 )
|
|
|
|
|
{
|
|
|
|
|
/* try the read */
|
|
|
|
|
int size = read(fd, buf, secsize);
|
|
|
|
|
if( size == secsize )
|
|
|
|
|
/* it worked so return */
|
|
|
|
|
return secsize;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
return read( fd, buf, secsize );
|
|
|
|
|
|
|
|
|
|
/* we failed to read at any of the sizes */
|
|
|
|
|
return -1;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static ssize_t
|
|
|
|
|
write_disk(off_t sector, void *buf)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
lseek(fd,(sector * 512), 0);
|
1996-12-01 11:25:38 +00:00
|
|
|
|
/* write out in the size that the read_disk found worked */
|
|
|
|
|
return write(fd, buf, secsize);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
|
|
|
|
get_params()
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
if (ioctl(fd, DIOCGDINFO, &disklabel) == -1) {
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("can't get disk parameters on %s; supplying dummy ones", disk);
|
1994-09-15 20:19:51 +00:00
|
|
|
|
dos_cyls = cyls = 1;
|
|
|
|
|
dos_heads = heads = 1;
|
|
|
|
|
dos_sectors = sectors = 1;
|
|
|
|
|
dos_cylsecs = cylsecs = heads * sectors;
|
|
|
|
|
disksecs = cyls * heads * sectors;
|
|
|
|
|
return disksecs;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dos_cyls = cyls = disklabel.d_ncylinders;
|
|
|
|
|
dos_heads = heads = disklabel.d_ntracks;
|
|
|
|
|
dos_sectors = sectors = disklabel.d_nsectors;
|
|
|
|
|
dos_cylsecs = cylsecs = heads * sectors;
|
|
|
|
|
disksecs = cyls * heads * sectors;
|
|
|
|
|
|
|
|
|
|
return (disksecs);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
1993-06-12 14:58:17 +00:00
|
|
|
|
read_s0()
|
|
|
|
|
{
|
2000-07-15 13:37:47 +00:00
|
|
|
|
mboot.bootinst_size = secsize;
|
|
|
|
|
if (mboot.bootinst != NULL)
|
2000-07-12 16:45:11 +00:00
|
|
|
|
free(mboot.bootinst);
|
2000-07-15 13:37:47 +00:00
|
|
|
|
if ((mboot.bootinst = malloc(mboot.bootinst_size)) == NULL) {
|
|
|
|
|
warnx("unable to allocate buffer to read fdisk "
|
|
|
|
|
"partition table");
|
|
|
|
|
return -1;
|
2000-07-12 16:45:11 +00:00
|
|
|
|
}
|
|
|
|
|
if (read_disk(0, mboot.bootinst) == -1) {
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("can't read fdisk partition table");
|
1993-06-12 14:58:17 +00:00
|
|
|
|
return -1;
|
|
|
|
|
}
|
2000-07-21 18:26:20 +00:00
|
|
|
|
if (*(uint16_t *)&mboot.bootinst[MBRSIGOFF] != BOOT_MAGIC) {
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("invalid fdisk partition table found");
|
1993-06-12 14:58:17 +00:00
|
|
|
|
/* So should we initialize things */
|
|
|
|
|
return -1;
|
|
|
|
|
}
|
2000-07-12 16:45:11 +00:00
|
|
|
|
memcpy(mboot.parts, &mboot.bootinst[DOSPARTOFF], sizeof(mboot.parts));
|
1993-06-12 14:58:17 +00:00
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
1993-06-12 14:58:17 +00:00
|
|
|
|
write_s0()
|
|
|
|
|
{
|
1999-09-25 02:11:30 +00:00
|
|
|
|
#ifdef NOT_NOW
|
1993-06-12 14:58:17 +00:00
|
|
|
|
int flag;
|
1999-09-25 02:11:30 +00:00
|
|
|
|
#endif
|
2000-07-12 16:45:11 +00:00
|
|
|
|
int sector;
|
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
if (iotest) {
|
|
|
|
|
print_s0(-1);
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
2000-07-12 16:45:11 +00:00
|
|
|
|
memcpy(&mboot.bootinst[DOSPARTOFF], mboot.parts, sizeof(mboot.parts));
|
1993-06-12 14:58:17 +00:00
|
|
|
|
/*
|
|
|
|
|
* write enable label sector before write (if necessary),
|
|
|
|
|
* disable after writing.
|
|
|
|
|
* needed if the disklabel protected area also protects
|
|
|
|
|
* sector 0. (e.g. empty disk)
|
|
|
|
|
*/
|
1995-10-03 11:12:50 +00:00
|
|
|
|
#ifdef NOT_NOW
|
1999-08-23 11:06:19 +00:00
|
|
|
|
flag = 1;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
if (ioctl(fd, DIOCWLABEL, &flag) < 0)
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warn("ioctl DIOCWLABEL");
|
1995-10-03 11:12:50 +00:00
|
|
|
|
#endif
|
2000-07-12 16:45:11 +00:00
|
|
|
|
for(sector = 0; sector < mboot.bootinst_size / secsize; sector++)
|
|
|
|
|
if (write_disk(sector,
|
|
|
|
|
&mboot.bootinst[sector * secsize]) == -1) {
|
|
|
|
|
warn("can't write fdisk partition table");
|
|
|
|
|
return -1;
|
|
|
|
|
#ifdef NOT_NOW
|
|
|
|
|
flag = 0;
|
|
|
|
|
(void) ioctl(fd, DIOCWLABEL, &flag);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
1995-10-03 11:12:50 +00:00
|
|
|
|
#ifdef NOT_NOW
|
1999-08-23 11:06:19 +00:00
|
|
|
|
flag = 0;
|
1993-06-12 14:58:17 +00:00
|
|
|
|
(void) ioctl(fd, DIOCWLABEL, &flag);
|
1995-10-03 11:12:50 +00:00
|
|
|
|
#endif
|
1996-06-21 02:39:19 +00:00
|
|
|
|
return(0);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
1993-06-12 14:58:17 +00:00
|
|
|
|
ok(str)
|
|
|
|
|
char *str;
|
|
|
|
|
{
|
|
|
|
|
printf("%s [n] ", str);
|
2001-08-05 16:24:13 +00:00
|
|
|
|
fflush(stdout);
|
|
|
|
|
if (fgets(lbuf, LBUF, stdin) == NULL)
|
|
|
|
|
exit(1);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
lbuf[strlen(lbuf)-1] = 0;
|
|
|
|
|
|
|
|
|
|
if (*lbuf &&
|
|
|
|
|
(!strcmp(lbuf, "yes") || !strcmp(lbuf, "YES") ||
|
|
|
|
|
!strcmp(lbuf, "y") || !strcmp(lbuf, "Y")))
|
|
|
|
|
return 1;
|
|
|
|
|
else
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
|
|
|
|
decimal(char *str, int *num, int deflt)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
int acc = 0, c;
|
|
|
|
|
char *cp;
|
|
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
|
printf("Supply a decimal value for \"%s\" [%d] ", str, deflt);
|
2001-08-05 16:24:13 +00:00
|
|
|
|
fflush(stdout);
|
|
|
|
|
if (fgets(lbuf, LBUF, stdin) == NULL)
|
|
|
|
|
exit(1);
|
1993-06-12 14:58:17 +00:00
|
|
|
|
lbuf[strlen(lbuf)-1] = 0;
|
|
|
|
|
|
|
|
|
|
if (!*lbuf)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
cp = lbuf;
|
|
|
|
|
while ((c = *cp) && (c == ' ' || c == '\t')) cp++;
|
|
|
|
|
if (!c)
|
|
|
|
|
return 0;
|
1996-06-21 02:39:19 +00:00
|
|
|
|
while ((c = *cp++)) {
|
1993-06-12 14:58:17 +00:00
|
|
|
|
if (c <= '9' && c >= '0')
|
|
|
|
|
acc = acc * 10 + c - '0';
|
|
|
|
|
else
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (c == ' ' || c == '\t')
|
|
|
|
|
while ((c = *cp) && (c == ' ' || c == '\t')) cp++;
|
|
|
|
|
if (!c) {
|
|
|
|
|
*num = acc;
|
|
|
|
|
return 1;
|
|
|
|
|
} else
|
1998-03-29 23:41:51 +00:00
|
|
|
|
printf("%s is an invalid decimal number. Try again.\n",
|
1993-06-12 14:58:17 +00:00
|
|
|
|
lbuf);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
#if 0
|
|
|
|
|
static int
|
|
|
|
|
hex(char *str, int *num, int deflt)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
int acc = 0, c;
|
|
|
|
|
char *cp;
|
|
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
|
printf("Supply a hex value for \"%s\" [%x] ", str, deflt);
|
|
|
|
|
fgets(lbuf, LBUF, stdin);
|
|
|
|
|
lbuf[strlen(lbuf)-1] = 0;
|
|
|
|
|
|
|
|
|
|
if (!*lbuf)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
cp = lbuf;
|
|
|
|
|
while ((c = *cp) && (c == ' ' || c == '\t')) cp++;
|
|
|
|
|
if (!c)
|
|
|
|
|
return 0;
|
1996-06-21 02:39:19 +00:00
|
|
|
|
while ((c = *cp++)) {
|
1993-06-12 14:58:17 +00:00
|
|
|
|
if (c <= '9' && c >= '0')
|
|
|
|
|
acc = (acc << 4) + c - '0';
|
|
|
|
|
else if (c <= 'f' && c >= 'a')
|
|
|
|
|
acc = (acc << 4) + c - 'a' + 10;
|
|
|
|
|
else if (c <= 'F' && c >= 'A')
|
|
|
|
|
acc = (acc << 4) + c - 'A' + 10;
|
|
|
|
|
else
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (c == ' ' || c == '\t')
|
|
|
|
|
while ((c = *cp) && (c == ' ' || c == '\t')) cp++;
|
|
|
|
|
if (!c) {
|
|
|
|
|
*num = acc;
|
|
|
|
|
return 1;
|
|
|
|
|
} else
|
1998-03-29 23:41:51 +00:00
|
|
|
|
printf("%s is an invalid hex number. Try again.\n",
|
1993-06-12 14:58:17 +00:00
|
|
|
|
lbuf);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static int
|
|
|
|
|
string(char *str, char **ans)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
int c;
|
|
|
|
|
char *cp = lbuf;
|
|
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
|
printf("Supply a string value for \"%s\" [%s] ", str, *ans);
|
|
|
|
|
fgets(lbuf, LBUF, stdin);
|
|
|
|
|
lbuf[strlen(lbuf)-1] = 0;
|
|
|
|
|
|
|
|
|
|
if (!*lbuf)
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
while ((c = *cp) && (c == ' ' || c == '\t')) cp++;
|
|
|
|
|
if (c == '"') {
|
|
|
|
|
c = *++cp;
|
|
|
|
|
*ans = cp;
|
|
|
|
|
while ((c = *cp) && c != '"') cp++;
|
|
|
|
|
} else {
|
|
|
|
|
*ans = cp;
|
|
|
|
|
while ((c = *cp) && c != ' ' && c != '\t') cp++;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (c)
|
|
|
|
|
*cp = 0;
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
}
|
1996-06-21 02:39:19 +00:00
|
|
|
|
#endif
|
1993-06-12 14:58:17 +00:00
|
|
|
|
|
1996-06-21 02:39:19 +00:00
|
|
|
|
static char *
|
|
|
|
|
get_type(int type)
|
1993-06-12 14:58:17 +00:00
|
|
|
|
{
|
|
|
|
|
int numentries = (sizeof(part_types)/sizeof(struct part_type));
|
|
|
|
|
int counter = 0;
|
|
|
|
|
struct part_type *ptr = part_types;
|
|
|
|
|
|
1995-05-30 06:12:45 +00:00
|
|
|
|
|
1993-06-12 14:58:17 +00:00
|
|
|
|
while(counter < numentries)
|
|
|
|
|
{
|
|
|
|
|
if(ptr->type == type)
|
|
|
|
|
{
|
|
|
|
|
return(ptr->name);
|
|
|
|
|
}
|
|
|
|
|
ptr++;
|
|
|
|
|
counter++;
|
|
|
|
|
}
|
|
|
|
|
return("unknown");
|
|
|
|
|
}
|
1996-11-06 14:08:39 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
parse_config_line(line, command)
|
|
|
|
|
char *line;
|
|
|
|
|
CMD *command;
|
|
|
|
|
{
|
|
|
|
|
char *cp, *end;
|
|
|
|
|
|
|
|
|
|
cp = line;
|
|
|
|
|
while (1) /* dirty trick used to insure one exit point for this
|
|
|
|
|
function */
|
|
|
|
|
{
|
|
|
|
|
memset(command, 0, sizeof(*command));
|
|
|
|
|
|
|
|
|
|
while (isspace(*cp)) ++cp;
|
|
|
|
|
if (*cp == '\0' || *cp == '#')
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
command->cmd = *cp++;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Parse args
|
|
|
|
|
*/
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
while (isspace(*cp)) ++cp;
|
|
|
|
|
if (*cp == '#')
|
|
|
|
|
{
|
|
|
|
|
break; /* found comment */
|
|
|
|
|
}
|
|
|
|
|
if (isalpha(*cp))
|
|
|
|
|
{
|
|
|
|
|
command->args[command->n_args].argtype = *cp++;
|
|
|
|
|
}
|
|
|
|
|
if (!isdigit(*cp))
|
|
|
|
|
{
|
|
|
|
|
break; /* assume end of line */
|
|
|
|
|
}
|
|
|
|
|
end = NULL;
|
|
|
|
|
command->args[command->n_args].arg_val = strtol(cp, &end, 0);
|
|
|
|
|
if (cp == end)
|
|
|
|
|
{
|
|
|
|
|
break; /* couldn't parse number */
|
|
|
|
|
}
|
|
|
|
|
cp = end;
|
|
|
|
|
command->n_args++;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
process_geometry(command)
|
|
|
|
|
CMD *command;
|
|
|
|
|
{
|
|
|
|
|
int status = 1, i;
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
geom_processed = 1;
|
|
|
|
|
if (part_processed)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx(
|
|
|
|
|
"ERROR line %d: the geometry specification line must occur before\n\
|
|
|
|
|
all partition specifications",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (command->n_args != 3)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: incorrect number of geometry args",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
dos_cyls = -1;
|
|
|
|
|
dos_heads = -1;
|
|
|
|
|
dos_sectors = -1;
|
|
|
|
|
for (i = 0; i < 3; ++i)
|
|
|
|
|
{
|
|
|
|
|
switch (command->args[i].argtype)
|
|
|
|
|
{
|
|
|
|
|
case 'c':
|
|
|
|
|
dos_cyls = command->args[i].arg_val;
|
|
|
|
|
break;
|
|
|
|
|
case 'h':
|
|
|
|
|
dos_heads = command->args[i].arg_val;
|
|
|
|
|
break;
|
|
|
|
|
case 's':
|
|
|
|
|
dos_sectors = command->args[i].arg_val;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx(
|
|
|
|
|
"ERROR line %d: unknown geometry arg type: '%c' (0x%02x)",
|
|
|
|
|
current_line_number, command->args[i].argtype,
|
1996-11-06 14:08:39 +00:00
|
|
|
|
command->args[i].argtype);
|
|
|
|
|
status = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (status == 0)
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dos_cylsecs = dos_heads * dos_sectors;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Do sanity checks on parameter values
|
|
|
|
|
*/
|
|
|
|
|
if (dos_cyls < 0)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: number of cylinders not specified",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
}
|
|
|
|
|
if (dos_cyls == 0 || dos_cyls > 1024)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx(
|
|
|
|
|
"WARNING line %d: number of cylinders (%d) may be out-of-range\n\
|
1996-11-06 14:08:39 +00:00
|
|
|
|
(must be within 1-1024 for normal BIOS operation, unless the entire disk\n\
|
1998-07-06 06:44:36 +00:00
|
|
|
|
is dedicated to FreeBSD)",
|
|
|
|
|
current_line_number, dos_cyls);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (dos_heads < 0)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: number of heads not specified",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
}
|
|
|
|
|
else if (dos_heads < 1 || dos_heads > 256)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: number of heads must be within (1-256)",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (dos_sectors < 0)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: number of sectors not specified",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
}
|
|
|
|
|
else if (dos_sectors < 1 || dos_sectors > 63)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: number of sectors must be within (1-63)",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return (status);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
process_partition(command)
|
|
|
|
|
CMD *command;
|
|
|
|
|
{
|
|
|
|
|
int status = 0, partition;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
u_int32_t prev_head_boundary, prev_cyl_boundary;
|
|
|
|
|
u_int32_t adj_size, max_end;
|
1996-11-06 14:08:39 +00:00
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
part_processed = 1;
|
|
|
|
|
if (command->n_args != 4)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: incorrect number of partition args",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
partition = command->args[0].arg_val;
|
1997-06-03 21:24:39 +00:00
|
|
|
|
if (partition < 1 || partition > 4)
|
1996-11-06 14:08:39 +00:00
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: invalid partition number %d",
|
|
|
|
|
current_line_number, partition);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
1997-06-03 21:24:39 +00:00
|
|
|
|
partp = ((struct dos_partition *) &mboot.parts) + partition - 1;
|
1996-11-06 14:08:39 +00:00
|
|
|
|
bzero((char *)partp, sizeof (struct dos_partition));
|
|
|
|
|
partp->dp_typ = command->args[1].arg_val;
|
|
|
|
|
partp->dp_start = command->args[2].arg_val;
|
|
|
|
|
partp->dp_size = command->args[3].arg_val;
|
|
|
|
|
max_end = partp->dp_start + partp->dp_size;
|
|
|
|
|
|
|
|
|
|
if (partp->dp_typ == 0)
|
|
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* Get out, the partition is marked as unused.
|
|
|
|
|
*/
|
|
|
|
|
/*
|
|
|
|
|
* Insure that it's unused.
|
|
|
|
|
*/
|
|
|
|
|
bzero((char *)partp, sizeof (struct dos_partition));
|
|
|
|
|
status = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Adjust start upwards, if necessary, to fall on an head boundary.
|
|
|
|
|
*/
|
|
|
|
|
if (partp->dp_start % dos_sectors != 0)
|
|
|
|
|
{
|
2000-08-24 17:54:45 +00:00
|
|
|
|
prev_head_boundary = partp->dp_start / dos_sectors * dos_sectors;
|
|
|
|
|
if (max_end < dos_sectors ||
|
|
|
|
|
prev_head_boundary > max_end - dos_sectors)
|
1996-11-06 14:08:39 +00:00
|
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* Can't go past end of partition
|
|
|
|
|
*/
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx(
|
|
|
|
|
"ERROR line %d: unable to adjust start of partition %d to fall on\n\
|
2000-08-24 17:54:45 +00:00
|
|
|
|
a head boundary",
|
1998-07-06 06:44:36 +00:00
|
|
|
|
current_line_number, partition);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx(
|
2000-08-24 17:54:45 +00:00
|
|
|
|
"WARNING: adjusting start offset of partition %d\n\
|
|
|
|
|
from %u to %u, to fall on a head boundary",
|
|
|
|
|
partition, (u_int)partp->dp_start,
|
|
|
|
|
(u_int)(prev_head_boundary + dos_sectors));
|
|
|
|
|
partp->dp_start = prev_head_boundary + dos_sectors;
|
1996-11-06 14:08:39 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Adjust size downwards, if necessary, to fall on a cylinder
|
|
|
|
|
* boundary.
|
|
|
|
|
*/
|
2000-08-24 17:54:45 +00:00
|
|
|
|
prev_cyl_boundary =
|
1996-11-06 14:08:39 +00:00
|
|
|
|
((partp->dp_start + partp->dp_size) / dos_cylsecs) * dos_cylsecs;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
if (prev_cyl_boundary > partp->dp_start)
|
|
|
|
|
adj_size = prev_cyl_boundary - partp->dp_start;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
warnx(
|
|
|
|
|
"ERROR: could not adjust partition to start on a head boundary\n\
|
|
|
|
|
and end on a cylinder boundary.");
|
|
|
|
|
return (0);
|
|
|
|
|
}
|
1996-11-06 14:08:39 +00:00
|
|
|
|
if (adj_size != partp->dp_size)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx(
|
2000-08-24 17:54:45 +00:00
|
|
|
|
"WARNING: adjusting size of partition %d from %u to %u\n\
|
|
|
|
|
to end on a cylinder boundary",
|
|
|
|
|
partition, (u_int)partp->dp_size, (u_int)adj_size);
|
|
|
|
|
partp->dp_size = adj_size;
|
1996-11-06 14:08:39 +00:00
|
|
|
|
}
|
2000-08-24 17:54:45 +00:00
|
|
|
|
if (partp->dp_size == 0)
|
1996-11-06 14:08:39 +00:00
|
|
|
|
{
|
2001-08-05 16:24:13 +00:00
|
|
|
|
warnx("ERROR line %d: size of partition %d is zero",
|
1998-07-06 06:44:36 +00:00
|
|
|
|
current_line_number, partition);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
2001-08-05 16:24:13 +00:00
|
|
|
|
dos(partp);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return (status);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
process_active(command)
|
|
|
|
|
CMD *command;
|
|
|
|
|
{
|
|
|
|
|
int status = 0, partition, i;
|
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
active_processed = 1;
|
|
|
|
|
if (command->n_args != 1)
|
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: incorrect number of active args",
|
|
|
|
|
current_line_number);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
status = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
partition = command->args[0].arg_val;
|
1997-06-03 21:24:39 +00:00
|
|
|
|
if (partition < 1 || partition > 4)
|
1996-11-06 14:08:39 +00:00
|
|
|
|
{
|
1998-07-06 06:44:36 +00:00
|
|
|
|
warnx("ERROR line %d: invalid partition number %d",
|
|
|
|
|
current_line_number, partition);
|
1996-11-06 14:08:39 +00:00
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
/*
|
|
|
|
|
* Reset active partition
|
|
|
|
|
*/
|
|
|
|
|
partp = ((struct dos_partition *) &mboot.parts);
|
|
|
|
|
for (i = 0; i < NDOSPART; i++)
|
|
|
|
|
partp[i].dp_flag = 0;
|
1997-06-03 21:24:39 +00:00
|
|
|
|
partp[partition-1].dp_flag = ACTIVE;
|
1996-11-06 14:08:39 +00:00
|
|
|
|
|
|
|
|
|
status = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return (status);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
process_line(line)
|
|
|
|
|
char *line;
|
|
|
|
|
{
|
|
|
|
|
CMD command;
|
|
|
|
|
int status = 1;
|
|
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
|
{
|
|
|
|
|
parse_config_line(line, &command);
|
|
|
|
|
switch (command.cmd)
|
|
|
|
|
{
|
|
|
|
|
case 0:
|
|
|
|
|
/*
|
|
|
|
|
* Comment or blank line
|
|
|
|
|
*/
|
|
|
|
|
break;
|
|
|
|
|
case 'g':
|
|
|
|
|
/*
|
|
|
|
|
* Set geometry
|
|
|
|
|
*/
|
|
|
|
|
status = process_geometry(&command);
|
|
|
|
|
break;
|
|
|
|
|
case 'p':
|
|
|
|
|
status = process_partition(&command);
|
|
|
|
|
break;
|
|
|
|
|
case 'a':
|
|
|
|
|
status = process_active(&command);
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
status = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
return (status);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
read_config(config_file)
|
|
|
|
|
char *config_file;
|
|
|
|
|
{
|
|
|
|
|
FILE *fp = NULL;
|
|
|
|
|
int status = 1;
|
|
|
|
|
char buf[1010];
|
|
|
|
|
|
|
|
|
|
while (1) /* dirty trick used to insure one exit point for this
|
|
|
|
|
function */
|
|
|
|
|
{
|
|
|
|
|
if (strcmp(config_file, "-") != 0)
|
|
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* We're not reading from stdin
|
|
|
|
|
*/
|
|
|
|
|
if ((fp = fopen(config_file, "r")) == NULL)
|
|
|
|
|
{
|
|
|
|
|
status = 0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
fp = stdin;
|
|
|
|
|
}
|
|
|
|
|
current_line_number = 0;
|
|
|
|
|
while (!feof(fp))
|
|
|
|
|
{
|
|
|
|
|
if (fgets(buf, sizeof(buf), fp) == NULL)
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
++current_line_number;
|
|
|
|
|
status = process_line(buf);
|
|
|
|
|
if (status == 0)
|
|
|
|
|
{
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
if (fp)
|
|
|
|
|
{
|
|
|
|
|
/*
|
|
|
|
|
* It doesn't matter if we're reading from stdin, as we've reached EOF
|
|
|
|
|
*/
|
|
|
|
|
fclose(fp);
|
|
|
|
|
}
|
|
|
|
|
return (status);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
reset_boot(void)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
|
|
|
|
|
init_boot();
|
|
|
|
|
for (i = 0; i < 4; ++i)
|
|
|
|
|
{
|
|
|
|
|
partp = ((struct dos_partition *) &mboot.parts) + i;
|
|
|
|
|
bzero((char *)partp, sizeof (struct dos_partition));
|
|
|
|
|
}
|
|
|
|
|
}
|
2000-08-24 17:54:45 +00:00
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
|
sanitize_partition(partp)
|
|
|
|
|
struct dos_partition *partp;
|
|
|
|
|
{
|
|
|
|
|
u_int32_t prev_head_boundary, prev_cyl_boundary;
|
2001-08-05 16:24:13 +00:00
|
|
|
|
u_int32_t max_end, size, start;
|
|
|
|
|
|
|
|
|
|
start = partp->dp_start;
|
|
|
|
|
size = partp->dp_size;
|
|
|
|
|
max_end = start + size;
|
|
|
|
|
/* Only allow a zero size if the partition is being marked unused. */
|
|
|
|
|
if (size == 0) {
|
|
|
|
|
if (start == 0 && partp->dp_typ == 0)
|
|
|
|
|
return (1);
|
|
|
|
|
warnx("ERROR: size of partition is zero");
|
|
|
|
|
return (0);
|
|
|
|
|
}
|
|
|
|
|
/* Return if no adjustment is necessary. */
|
|
|
|
|
if (start % dos_sectors == 0 && (start + size) % dos_sectors == 0)
|
|
|
|
|
return (1);
|
|
|
|
|
|
|
|
|
|
if (start % dos_sectors != 0)
|
|
|
|
|
warnx("WARNING: partition does not start on a head boundary");
|
|
|
|
|
if ((start +size) % dos_sectors != 0)
|
|
|
|
|
warnx("WARNING: partition does not end on a cylinder boundary");
|
|
|
|
|
warnx("WARNING: this may confuse the BIOS or some operating systems");
|
|
|
|
|
if (!ok("Correct this automatically?"))
|
|
|
|
|
return (1);
|
2000-08-24 17:54:45 +00:00
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Adjust start upwards, if necessary, to fall on an head boundary.
|
|
|
|
|
*/
|
2001-08-05 16:24:13 +00:00
|
|
|
|
if (start % dos_sectors != 0) {
|
|
|
|
|
prev_head_boundary = start / dos_sectors * dos_sectors;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
if (max_end < dos_sectors ||
|
2001-08-05 16:24:13 +00:00
|
|
|
|
prev_head_boundary >= max_end - dos_sectors) {
|
2000-08-24 17:54:45 +00:00
|
|
|
|
/*
|
|
|
|
|
* Can't go past end of partition
|
|
|
|
|
*/
|
|
|
|
|
warnx(
|
|
|
|
|
"ERROR: unable to adjust start of partition to fall on a head boundary");
|
|
|
|
|
return (0);
|
|
|
|
|
}
|
2001-08-05 16:24:13 +00:00
|
|
|
|
start = prev_head_boundary + dos_sectors;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Adjust size downwards, if necessary, to fall on a cylinder
|
|
|
|
|
* boundary.
|
|
|
|
|
*/
|
2001-08-05 16:24:13 +00:00
|
|
|
|
prev_cyl_boundary = ((start + size) / dos_cylsecs) * dos_cylsecs;
|
|
|
|
|
if (prev_cyl_boundary > start)
|
|
|
|
|
size = prev_cyl_boundary - start;
|
|
|
|
|
else {
|
2000-08-24 17:54:45 +00:00
|
|
|
|
warnx("ERROR: could not adjust partition to start on a head boundary\n\
|
|
|
|
|
and end on a cylinder boundary.");
|
|
|
|
|
return (0);
|
|
|
|
|
}
|
2001-08-05 16:24:13 +00:00
|
|
|
|
|
|
|
|
|
/* Finally, commit any changes to partp and return. */
|
|
|
|
|
if (start != partp->dp_start) {
|
|
|
|
|
warnx("WARNING: adjusting start offset of partition to %u",
|
|
|
|
|
(u_int)start);
|
|
|
|
|
partp->dp_start = start;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
}
|
2001-08-05 16:24:13 +00:00
|
|
|
|
if (size != partp->dp_size) {
|
|
|
|
|
warnx("WARNING: adjusting size of partition to %u", (u_int)size);
|
|
|
|
|
partp->dp_size = size;
|
2000-08-24 17:54:45 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return (1);
|
|
|
|
|
}
|
2001-07-13 16:48:56 +00:00
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Try figuring out the root device's canonical disk name.
|
|
|
|
|
* The following choices are considered:
|
|
|
|
|
* /dev/ad0s1a => /dev/ad0
|
|
|
|
|
* /dev/da0a => /dev/da0
|
|
|
|
|
* /dev/vinum/root => /dev/vinum/root
|
|
|
|
|
*/
|
|
|
|
|
static char *
|
|
|
|
|
get_rootdisk(void)
|
|
|
|
|
{
|
|
|
|
|
struct statfs rootfs;
|
|
|
|
|
regex_t re;
|
|
|
|
|
#define NMATCHES 2
|
|
|
|
|
regmatch_t rm[NMATCHES];
|
|
|
|
|
char *s;
|
|
|
|
|
int rv;
|
|
|
|
|
|
|
|
|
|
if (statfs("/", &rootfs) == -1)
|
|
|
|
|
err(1, "statfs(\"/\")");
|
|
|
|
|
|
|
|
|
|
if ((rv = regcomp(&re, "^(/dev/.*)(\\d+(s\\d+)?[a-h])?$",
|
|
|
|
|
REG_EXTENDED)) != 0)
|
|
|
|
|
errx(1, "regcomp() failed (%d)", rv);
|
|
|
|
|
if ((rv = regexec(&re, rootfs.f_mntfromname, NMATCHES, rm, 0)) != 0)
|
|
|
|
|
errx(1,
|
|
|
|
|
"mounted root fs resource doesn't match expectations (regexec returned %d)",
|
|
|
|
|
rv);
|
|
|
|
|
if ((s = malloc(rm[1].rm_eo - rm[1].rm_so + 1)) == NULL)
|
|
|
|
|
errx(1, "out of memory");
|
|
|
|
|
memcpy(s, rootfs.f_mntfromname + rm[1].rm_so,
|
|
|
|
|
rm[1].rm_eo - rm[1].rm_so);
|
|
|
|
|
s[rm[1].rm_eo - rm[1].rm_so] = 0;
|
|
|
|
|
|
|
|
|
|
return s;
|
|
|
|
|
}
|