8c8cc20511
* Makefile.in: Update copyright. * genmodsrc.sh: Likewise. * gensymlist.sh: Likewise. * term/i386/pc/vga.c: Indent correctly. * util/i386/pc/pupa-mkimage.c (usage): Use PACKAGE_BUGREPORT as bugreporting address. * util/i386/pc/pupa-setup.c (usage): Likewise, (main): Call pupa_ext2_init and pupa_ext2_fini. * fs/fat.c (log2): Renamed to ... (fat_log2): ... this. All callers changed. * kern/misc.c (memcpy): Alias to pupa_memmove. * loader/i386/pc/multiboot.c (pupa_rescue_cmd_multiboot): Fix lvalue cast. * util/console.c (pupa_ncurses_fini): Return 0. * util/i386/pc/biosdisk.c (pupa_util_biosdisk_open)[__linux__]: Move fail label here. [__GNU__]: Don't warn when using stat. (open_device)[!__linux__]: Check if FD < 0 instead of !FD. (pupa_util_biosdisk_get_pupa_dev)[__GNU__]: Change type of N to long int. Use strtol instead of strtoul.
643 lines
17 KiB
C
643 lines
17 KiB
C
/* pupa-setup.c - make PUPA usable */
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/*
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* PUPA -- Preliminary Universal Programming Architecture for GRUB
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* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
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*
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* PUPA is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with PUPA; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <config.h>
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#include <pupa/types.h>
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#include <pupa/util/misc.h>
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#include <pupa/device.h>
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#include <pupa/disk.h>
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#include <pupa/file.h>
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#include <pupa/fs.h>
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#include <pupa/machine/partition.h>
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#include <pupa/machine/util/biosdisk.h>
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#include <pupa/machine/boot.h>
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#include <pupa/machine/kernel.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <pupa/util/getroot.h>
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#define _GNU_SOURCE 1
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#include <getopt.h>
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#define DEFAULT_BOOT_FILE "boot.img"
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#define DEFAULT_CORE_FILE "core.img"
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#ifdef __NetBSD__
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/* NetBSD uses /boot for its boot block. */
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# define DEFAULT_DIRECTORY "/pupa"
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#else
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# define DEFAULT_DIRECTORY "/boot/pupa"
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#endif
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#define DEFAULT_DEVICE_MAP DEFAULT_DIRECTORY "/device.map"
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/* This is the blocklist used in the diskboot image. */
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struct boot_blocklist
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{
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pupa_uint32_t start;
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pupa_uint16_t len;
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pupa_uint16_t segment;
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} __attribute__ ((packed));
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void
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pupa_putchar (int c)
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{
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putchar (c);
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}
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void
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pupa_refresh (void)
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{
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}
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static void
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setup (const char *prefix, const char *dir,
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const char *boot_file, const char *core_file,
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const char *root, const char *dest)
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{
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char *boot_path, *core_path;
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char *boot_img, *core_img;
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size_t boot_size, core_size;
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pupa_uint16_t core_sectors;
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pupa_device_t root_dev, dest_dev;
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pupa_uint8_t *boot_drive;
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pupa_uint32_t *kernel_sector;
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struct boot_blocklist *first_block, *block;
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pupa_int32_t *install_dos_part, *install_bsd_part;
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char *install_prefix;
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char *tmp_img;
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int i;
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unsigned long first_sector;
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pupa_uint16_t current_segment
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= PUPA_BOOT_MACHINE_KERNEL_SEG + (PUPA_DISK_SECTOR_SIZE >> 4);
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pupa_uint16_t last_length = PUPA_DISK_SECTOR_SIZE;
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pupa_file_t file;
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FILE *fp;
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unsigned long first_start = ~0UL;
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auto void save_first_sector (unsigned long sector, unsigned offset,
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unsigned length);
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auto void save_blocklists (unsigned long sector, unsigned offset,
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unsigned length);
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auto int find_first_partition_start (const pupa_partition_t p);
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int find_first_partition_start (const pupa_partition_t p)
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{
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if (! pupa_partition_is_empty (p->dos_type)
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&& ! pupa_partition_is_bsd (p->dos_type)
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&& first_start > p->start)
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first_start = p->start;
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return 0;
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}
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void save_first_sector (unsigned long sector, unsigned offset,
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unsigned length)
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{
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pupa_util_info ("the fist sector is <%lu,%u,%u>",
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sector, offset, length);
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if (offset != 0 || length != PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("The first sector of the core file is not sector-aligned");
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first_sector = sector;
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}
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void save_blocklists (unsigned long sector, unsigned offset, unsigned length)
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{
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struct boot_blocklist *prev = block + 1;
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pupa_util_info ("saving <%lu,%u,%u> with the segment 0x%x",
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sector, offset, length, (unsigned) current_segment);
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if (offset != 0 || last_length != PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("Non-sector-aligned data is found in the core file");
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if (block != first_block
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&& (pupa_le_to_cpu32 (prev->start)
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+ pupa_le_to_cpu16 (prev->len)) == sector)
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prev->len = pupa_cpu_to_le16 (pupa_le_to_cpu16 (prev->len) + 1);
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else
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{
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block->start = pupa_cpu_to_le32 (sector);
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block->len = pupa_cpu_to_le16 (1);
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block->segment = pupa_cpu_to_le16 (current_segment);
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block--;
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if (block->len)
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pupa_util_error ("The sectors of the core file are too fragmented");
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}
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last_length = length;
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current_segment += PUPA_DISK_SECTOR_SIZE >> 4;
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}
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/* Read the boot image by the OS service. */
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boot_path = pupa_util_get_path (dir, boot_file);
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boot_size = pupa_util_get_image_size (boot_path);
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if (boot_size != PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("The size of `%s' is not %d",
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boot_path, PUPA_DISK_SECTOR_SIZE);
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boot_img = pupa_util_read_image (boot_path);
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free (boot_path);
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/* Set the addresses of BOOT_DRIVE and KERNEL_SECTOR. */
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boot_drive = (pupa_uint8_t *) (boot_img + PUPA_BOOT_MACHINE_BOOT_DRIVE);
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kernel_sector = (pupa_uint32_t *) (boot_img
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+ PUPA_BOOT_MACHINE_KERNEL_SECTOR);
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core_path = pupa_util_get_path (dir, core_file);
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core_size = pupa_util_get_image_size (core_path);
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core_sectors = ((core_size + PUPA_DISK_SECTOR_SIZE - 1)
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>> PUPA_DISK_SECTOR_BITS);
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if (core_size < PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("The size of `%s' is too small", core_path);
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else if (core_size > 0xFFFF * PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("The size of `%s' is too large", core_path);
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core_img = pupa_util_read_image (core_path);
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free (core_path);
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/* Have FIRST_BLOCK to point to the first blocklist. */
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first_block = (struct boot_blocklist *) (core_img
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+ PUPA_DISK_SECTOR_SIZE
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- sizeof (*block));
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install_dos_part = (pupa_int32_t *) (core_img + PUPA_DISK_SECTOR_SIZE
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+ PUPA_KERNEL_MACHINE_INSTALL_DOS_PART);
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install_bsd_part = (pupa_int32_t *) (core_img + PUPA_DISK_SECTOR_SIZE
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+ PUPA_KERNEL_MACHINE_INSTALL_BSD_PART);
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install_prefix = (core_img + PUPA_DISK_SECTOR_SIZE
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+ PUPA_KERNEL_MACHINE_PREFIX);
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/* Open the root device and the destination device. */
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root_dev = pupa_device_open (root);
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if (! root_dev)
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pupa_util_error ("%s", pupa_errmsg);
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dest_dev = pupa_device_open (dest);
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if (! dest_dev)
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pupa_util_error ("%s", pupa_errmsg);
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pupa_util_info ("setting the root device to `%s'", root);
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if (pupa_device_set_root (root) != PUPA_ERR_NONE)
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pupa_util_error ("%s", pupa_errmsg);
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/* Read the original sector from the disk. */
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tmp_img = xmalloc (PUPA_DISK_SECTOR_SIZE);
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if (pupa_disk_read (dest_dev->disk, 0, 0, PUPA_DISK_SECTOR_SIZE, tmp_img))
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pupa_util_error ("%s", pupa_errmsg);
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/* Copy the possible DOS BPB. */
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memcpy (boot_img + PUPA_BOOT_MACHINE_BPB_START,
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tmp_img + PUPA_BOOT_MACHINE_BPB_START,
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PUPA_BOOT_MACHINE_BPB_END - PUPA_BOOT_MACHINE_BPB_START);
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/* Copy the possible partition table. */
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if (dest_dev->disk->has_partitions)
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memcpy (boot_img + PUPA_BOOT_MACHINE_WINDOWS_NT_MAGIC,
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tmp_img + PUPA_BOOT_MACHINE_WINDOWS_NT_MAGIC,
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PUPA_BOOT_MACHINE_PART_END - PUPA_BOOT_MACHINE_WINDOWS_NT_MAGIC);
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free (tmp_img);
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/* If the destination device can have partitions and it is the MBR,
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try to embed the core image into after the MBR. */
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if (dest_dev->disk->has_partitions && ! dest_dev->disk->partition)
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{
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pupa_partition_iterate (dest_dev->disk, find_first_partition_start);
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/* If there is enough space... */
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if ((unsigned long) core_sectors + 1 <= first_start)
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{
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pupa_util_info ("will embed the core image into after the MBR");
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/* The first blocklist contains the whole sectors. */
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first_block->start = pupa_cpu_to_le32 (2);
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first_block->len = pupa_cpu_to_le16 (core_sectors - 1);
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first_block->segment
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= pupa_cpu_to_le16 (PUPA_BOOT_MACHINE_KERNEL_SEG
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+ (PUPA_DISK_SECTOR_SIZE >> 4));
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/* Make sure that the second blocklist is a terminator. */
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block = first_block - 1;
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block->start = 0;
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block->len = 0;
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block->segment = 0;
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/* Embed information about the installed location. */
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if (root_dev->disk->partition)
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{
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*install_dos_part
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= pupa_cpu_to_le32 (root_dev->disk->partition->dos_part);
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*install_bsd_part
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= pupa_cpu_to_le32 (root_dev->disk->partition->bsd_part);
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}
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else
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*install_dos_part = *install_bsd_part = pupa_cpu_to_le32 (-1);
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strcpy (install_prefix, prefix);
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/* Write the core image onto the disk. */
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if (pupa_disk_write (dest_dev->disk, 1, 0, core_size, core_img))
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pupa_util_error ("%s", pupa_errmsg);
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/* The boot image and the core image are on the same drive,
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so there is no need to specify the boot drive explicitly. */
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*boot_drive = 0xff;
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*kernel_sector = pupa_cpu_to_le32 (1);
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/* Write the boot image onto the disk. */
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if (pupa_disk_write (dest_dev->disk, 0, 0, PUPA_DISK_SECTOR_SIZE,
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boot_img))
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pupa_util_error ("%s", pupa_errmsg);
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goto finish;
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}
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}
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/* The core image must be put on a filesystem unfortunately. */
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pupa_util_info ("will leave the core image on the filesystem");
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/* Make sure that PUPA reads the identical image as the OS. */
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tmp_img = xmalloc (core_size);
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core_path = pupa_util_get_path (prefix, core_file);
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/* It is a Good Thing to sync two times. */
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sync ();
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sync ();
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#define MAX_TRIES 5
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for (i = 0; i < MAX_TRIES; i++)
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{
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pupa_util_info ("attempting to read the core image `%s' from PUPA%s",
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core_path, (i == 0) ? "" : " again");
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pupa_disk_cache_invalidate_all ();
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file = pupa_file_open (core_path);
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if (file)
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{
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if (pupa_file_size (file) != (pupa_ssize_t) core_size)
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pupa_util_info ("succeeded in opening the core image but the size is different (%d != %d)",
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(int) pupa_file_size (file), (int) core_size);
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else if (pupa_file_read (file, tmp_img, core_size)
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!= (pupa_ssize_t) core_size)
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pupa_util_info ("succeeded in opening the core image but cannot read %d bytes",
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(int) core_size);
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else if (memcmp (core_img, tmp_img, core_size) != 0)
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{
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#if 0
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FILE *dump;
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FILE *dump2;
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dump = fopen ("dump.img", "wb");
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if (dump)
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{
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fwrite (tmp_img, 1, core_size, dump);
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fclose (dump);
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}
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dump2 = fopen ("dump2.img", "wb");
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if (dump2)
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{
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fwrite (core_img, 1, core_size, dump2);
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fclose (dump2);
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}
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#endif
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pupa_util_info ("succeeded in opening the core image but the data is different");
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}
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else
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{
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pupa_file_close (file);
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break;
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}
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pupa_file_close (file);
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}
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else
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pupa_util_info ("couldn't open the core image");
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if (pupa_errno)
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pupa_util_info ("error message = %s", pupa_errmsg);
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pupa_errno = PUPA_ERR_NONE;
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sync ();
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sleep (1);
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}
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if (i == MAX_TRIES)
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pupa_util_error ("Cannot read `%s' correctly", core_path);
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/* Clean out the blocklists. */
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block = first_block;
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while (block->len)
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{
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block->start = 0;
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block->len = 0;
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block->segment = 0;
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block--;
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if ((char *) block <= core_img)
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pupa_util_error ("No terminator in the core image");
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}
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/* Now read the core image to determine where the sectors are. */
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file = pupa_file_open (core_path);
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if (! file)
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pupa_util_error ("%s", pupa_errmsg);
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file->read_hook = save_first_sector;
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if (pupa_file_read (file, tmp_img, PUPA_DISK_SECTOR_SIZE)
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!= PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("Failed to read the first sector of the core image");
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block = first_block;
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file->read_hook = save_blocklists;
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if (pupa_file_read (file, tmp_img, core_size - PUPA_DISK_SECTOR_SIZE)
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!= (pupa_ssize_t) core_size - PUPA_DISK_SECTOR_SIZE)
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pupa_util_error ("Failed to read the rest sectors of the core image");
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free (core_path);
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free (tmp_img);
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*kernel_sector = pupa_cpu_to_le32 (first_sector);
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/* If the destination device is different from the root device,
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it is necessary to embed the boot drive explicitly. */
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if (root_dev->disk->id != dest_dev->disk->id)
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*boot_drive = (pupa_uint8_t) root_dev->disk->id;
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else
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*boot_drive = 0xFF;
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/* Embed information about the installed location. */
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if (root_dev->disk->partition)
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{
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*install_dos_part
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= pupa_cpu_to_le32 (root_dev->disk->partition->dos_part);
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*install_bsd_part
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= pupa_cpu_to_le32 (root_dev->disk->partition->bsd_part);
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}
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else
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*install_dos_part = *install_bsd_part = pupa_cpu_to_le32 (-1);
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strcpy (install_prefix, prefix);
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/* Write the first two sectors of the core image onto the disk. */
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core_path = pupa_util_get_path (dir, core_file);
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pupa_util_info ("opening the core image `%s'", core_path);
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fp = fopen (core_path, "r+b");
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if (! fp)
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pupa_util_error ("Cannot open `%s'", core_path);
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pupa_util_write_image (core_img, PUPA_DISK_SECTOR_SIZE * 2, fp);
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fclose (fp);
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free (core_path);
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/* Write the boot image onto the disk. */
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if (pupa_disk_write (dest_dev->disk, 0, 0, PUPA_DISK_SECTOR_SIZE, boot_img))
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pupa_util_error ("%s", pupa_errmsg);
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finish:
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/* Sync is a Good Thing. */
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sync ();
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free (core_img);
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free (boot_img);
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pupa_device_close (dest_dev);
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pupa_device_close (root_dev);
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}
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static struct option options[] =
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{
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{"boot-image", required_argument, 0, 'b'},
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{"core-image", required_argument, 0, 'c'},
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{"directory", required_argument, 0, 'd'},
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{"device-map", required_argument, 0, 'm'},
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{"root-device", required_argument, 0, 'r'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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{"verbose", no_argument, 0, 'v'},
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{0, 0, 0, 0}
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};
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static void
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usage (int status)
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{
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if (status)
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fprintf (stderr, "Try ``pupa-setup --help'' for more information.\n");
|
|
else
|
|
printf ("\
|
|
Usage: pupa-setup [OPTION]... DEVICE\n\
|
|
\n\
|
|
Set up images to boot from DEVICE.\n\
|
|
DEVICE must be a PUPA device (e.g. ``(hd0,0)'').\n\
|
|
\n\
|
|
-b, --boot-file=FILE use FILE as the boot file [default=%s]\n\
|
|
-c, --core-file=FILE use FILE as the core file [default=%s]\n\
|
|
-d, --directory=DIR use PUPA files in the directory DIR [default=%s]\n\
|
|
-m, --device-map=FILE use FILE as the device map [default=%s]\n\
|
|
-r, --root-device=DEV use DEV as the root device [default=guessed]\n\
|
|
-h, --help display this message and exit\n\
|
|
-V, --version print version information and exit\n\
|
|
-v, --verbose print verbose messages\n\
|
|
\n\
|
|
Report bugs to <%s>.\n\
|
|
",
|
|
DEFAULT_BOOT_FILE, DEFAULT_CORE_FILE, DEFAULT_DIRECTORY,
|
|
DEFAULT_DEVICE_MAP, PACKAGE_BUGREPORT);
|
|
|
|
exit (status);
|
|
}
|
|
|
|
static char *
|
|
get_device_name (char *dev)
|
|
{
|
|
size_t len = strlen (dev);
|
|
|
|
if (dev[0] != '(' || dev[len - 1] != ')')
|
|
return 0;
|
|
|
|
dev[len - 1] = '\0';
|
|
return dev + 1;
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
char *boot_file = 0;
|
|
char *core_file = 0;
|
|
char *dir = 0;
|
|
char *dev_map = 0;
|
|
char *root_dev = 0;
|
|
char *prefix;
|
|
char *dest_dev;
|
|
|
|
progname = "pupa-setup";
|
|
|
|
/* Check for options. */
|
|
while (1)
|
|
{
|
|
int c = getopt_long (argc, argv, "b:c:d:m:r:hVv", options, 0);
|
|
|
|
if (c == -1)
|
|
break;
|
|
else
|
|
switch (c)
|
|
{
|
|
case 'b':
|
|
if (boot_file)
|
|
free (boot_file);
|
|
|
|
boot_file = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'c':
|
|
if (core_file)
|
|
free (core_file);
|
|
|
|
core_file = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'd':
|
|
if (dir)
|
|
free (dir);
|
|
|
|
dir = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'm':
|
|
if (dev_map)
|
|
free (dev_map);
|
|
|
|
dev_map = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'r':
|
|
if (root_dev)
|
|
free (root_dev);
|
|
|
|
root_dev = xstrdup (optarg);
|
|
break;
|
|
|
|
case 'h':
|
|
usage (0);
|
|
break;
|
|
|
|
case 'V':
|
|
printf ("pupa-setup (%s) %s\n", PACKAGE_NAME, PACKAGE_VERSION);
|
|
return 0;
|
|
|
|
case 'v':
|
|
verbosity++;
|
|
break;
|
|
|
|
default:
|
|
usage (1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Obtain DEST_DEV. */
|
|
if (optind >= argc)
|
|
{
|
|
fprintf (stderr, "No device is specified.\n");
|
|
usage (1);
|
|
}
|
|
|
|
if (optind + 1 != argc)
|
|
{
|
|
fprintf (stderr, "Unknown extra argument `%s'.\n", argv[optind + 1]);
|
|
usage (1);
|
|
}
|
|
|
|
dest_dev = get_device_name (argv[optind]);
|
|
|
|
if (! dest_dev)
|
|
{
|
|
fprintf (stderr, "Invalid device `%s'.\n", argv[optind]);
|
|
usage (1);
|
|
}
|
|
|
|
prefix = pupa_get_prefix (dir ? : DEFAULT_DIRECTORY);
|
|
|
|
/* Initialize the emulated biosdisk driver. */
|
|
pupa_util_biosdisk_init (dev_map ? : DEFAULT_DEVICE_MAP);
|
|
|
|
/* Initialize filesystems. */
|
|
pupa_fat_init ();
|
|
pupa_ext2_init ();
|
|
|
|
if (root_dev)
|
|
{
|
|
char *tmp = get_device_name (root_dev);
|
|
|
|
if (! tmp)
|
|
pupa_util_error ("Invalid root device `%s'", root_dev);
|
|
|
|
tmp = xstrdup (tmp);
|
|
free (root_dev);
|
|
root_dev = tmp;
|
|
}
|
|
else
|
|
{
|
|
root_dev = pupa_guess_root_device (dir ? : DEFAULT_DIRECTORY);
|
|
if (! root_dev)
|
|
{
|
|
pupa_util_info ("guessing the root device failed, because of `%s'",
|
|
pupa_errmsg);
|
|
pupa_util_error ("Cannot guess the root device. Specify the option ``--root-device''.");
|
|
}
|
|
}
|
|
|
|
/* Do the real work. */
|
|
setup (prefix,
|
|
dir ? : DEFAULT_DIRECTORY,
|
|
boot_file ? : DEFAULT_BOOT_FILE,
|
|
core_file ? : DEFAULT_CORE_FILE,
|
|
root_dev, dest_dev);
|
|
|
|
/* Free resources. */
|
|
pupa_ext2_fini ();
|
|
pupa_fat_fini ();
|
|
|
|
pupa_util_biosdisk_fini ();
|
|
|
|
free (boot_file);
|
|
free (core_file);
|
|
free (prefix);
|
|
free (dir);
|
|
free (dev_map);
|
|
free (root_dev);
|
|
free (prefix);
|
|
|
|
return 0;
|
|
}
|