2ca2c11464
Re-organised files, moved bootcode routines into their own files. Check return types of everything and pass error messages to windows so we get good diagnostics. Made start on stage 2 installation. Implemented a status file that keeeps track of where we are in the installation process and allows installation from media sequences.
325 lines
7.4 KiB
C
325 lines
7.4 KiB
C
/*
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* Copyright (c) 1994, Paul Richards.
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*
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* All rights reserved.
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*
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* This software may be used, modified, copied, distributed, and
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* sold, in both source and binary form provided that the above
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* copyright and these terms are retained, verbatim, as the first
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* lines of this file. Under no circumstances is the author
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* responsible for the proper functioning of this software, nor does
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* the author assume any responsibility for damages incurred with
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* its use.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/errno.h>
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#include <sys/disklabel.h>
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#include <sys/ioctl.h>
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#include <sys/fcntl.h>
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#include <sys/uio.h>
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#include <ufs/ffs/fs.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdio.h>
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#include "bootarea.h"
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#include "sysinstall.h"
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char boot1[] = BOOT1;
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char boot2[] = BOOT2;
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struct part_type part_types[] =
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{
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{0x00, "unused"}
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,{0x01, "Primary DOS with 12 bit FAT"}
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,{0x02, "XENIX / filesystem"}
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,{0x03, "XENIX /usr filesystem"}
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,{0x04, "Primary DOS with 16 bit FAT"}
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,{0x05, "Extended DOS"}
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,{0x06, "Primary 'big' DOS (> 32MB)"}
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,{0x07, "OS/2 HPFS, QNX or Advanced UNIX"}
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,{0x08, "AIX filesystem"}
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,{0x09, "AIX boot partition or Coherent"}
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,{0x0A, "OS/2 Boot Manager or OPUS"}
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,{0x10, "OPUS"}
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,{0x40, "VENIX 286"}
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,{0x50, "DM"}
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,{0x51, "DM"}
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,{0x52, "CP/M or Microport SysV/AT"}
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,{0x56, "GB"}
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,{0x61, "Speed"}
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,{0x63, "ISC UNIX, other System V/386, GNU HURD or Mach"}
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,{0x64, "Novell Netware 2.xx"}
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,{0x65, "Novell Netware 3.xx"}
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,{0x75, "PCIX"}
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,{0x80, "Minix 1.1 ... 1.4a"}
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,{0x81, "Minix 1.4b ... 1.5.10"}
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,{0x82, "Linux"}
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,{0x93, "Amoeba filesystem"}
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,{0x94, "Amoeba bad block table"}
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,{0xA5, "386BSD"}
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,{0xB7, "BSDI BSD/386 filesystem"}
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,{0xB8, "BSDI BSD/386 swap"}
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,{0xDB, "Concurrent CPM or C.DOS or CTOS"}
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,{0xE1, "Speed"}
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,{0xE3, "Speed"}
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,{0xE4, "Speed"}
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,{0xF1, "Speed"}
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,{0xF2, "DOS 3.3+ Secondary"}
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,{0xF4, "Speed"}
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,{0xFF, "BBT (Bad Blocks Table)"}
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};
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extern char *bootblocks;
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extern struct bootarea *bootarea;
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int
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enable_label(int fd)
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{
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int flag = 1;
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if (ioctl(fd, DIOCWLABEL, &flag) < 0) {
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sprintf(errmsg, "Write enable of disk failed\n");
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return(-1);
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}
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return(0);
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}
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int
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disable_label(int fd)
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{
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int flag = 0;
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if (ioctl(fd, DIOCWLABEL, &flag) < 0) {
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sprintf(errmsg, "Write disable of disk failed\n");
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return(-1);
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}
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return(0);
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}
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int
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write_bootblocks(int fd, off_t offset, int bbsize)
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{
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if (ioctl(fd, DIOCSDINFO, &avail_disklabels[inst_disk]) < 0 &&
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errno != ENODEV && errno != ENOTTY) {
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sprintf(errmsg, "Failed to change in-core disklabel\n");
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return(-1);
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}
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if (lseek(fd, (offset * avail_disklabels[inst_disk].d_secsize), SEEK_SET) < 0) {
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sprintf(errmsg, "Couldn't seek to start of partition\n");
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return(-1);
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}
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if (enable_label(fd) == -1)
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return(-1);
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if (write(fd, bootblocks, bbsize) != bbsize) {
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sprintf(errmsg, "Failed to write bootblocks\n");
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return(-1);
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}
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if (disable_label(fd) == -1)
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return(-1);
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return(0);
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}
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int
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build_bootblocks(struct disklabel *label)
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{
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int fd;
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fd = open(boot1, O_RDONLY);
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if (fd < 0) {
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sprintf(errmsg, "Couldn't open boot file %s\n", boot1);
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return(-1);
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}
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if (read(fd, bootblocks, (int)label->d_secsize) < 0) {
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sprintf(errmsg, "Couldn't read from boot file %s\n", boot1);
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return(-1);
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}
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if (close(fd) == -1) {
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sprintf(errmsg, "Couldn't close boot file %s\n", boot1);
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return(-1);
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}
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fd = open(boot2, O_RDONLY);
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if (fd < 0) {
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sprintf(errmsg, "Couldn't open boot file %s\n", boot2);
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return(-1);
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}
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if (read(fd, &bootblocks[label->d_secsize], (int)(label->d_bbsize - label->d_secsize)) < 0) {
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sprintf(errmsg, "Couldn't read from boot file %s\n", boot2);
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return(-1);
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}
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if (close(fd) == -1) {
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sprintf(errmsg, "Couldn't close boot file %s\n", boot2);
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return(-1);
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}
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/* Write the disklabel into the bootblocks */
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label->d_checksum = dkcksum(label);
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bcopy(label, &bootblocks[(LABELSECTOR * label->d_secsize) + LABELOFFSET], sizeof *label);
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return(0);
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}
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int
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calc_sects(int size, struct disklabel *label)
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{
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int nsects, ncyls;
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nsects = (size * 1024 * 1024) / label->d_secsize;
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ncyls = nsects / label->d_secpercyl;
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nsects = ++ncyls * label->d_secpercyl;
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return(nsects);
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}
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void
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build_disklabel(struct disklabel *label, int avail_sects, int offset)
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{
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int nsects;
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/* Fill in default label entries */
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label->d_magic = DISKMAGIC;
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bcopy("INSTALLATION",label->d_typename, strlen("INSTALLATION"));
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label->d_rpm = 3600;
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label->d_interleave = 1;
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label->d_trackskew = 0;
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label->d_cylskew = 0;
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label->d_magic2 = DISKMAGIC;
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label->d_checksum = 0;
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label->d_bbsize = BBSIZE;
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label->d_sbsize = SBSIZE;
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label->d_npartitions = 5;
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/* Set up c and d as raw partitions for now */
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label->d_partitions[2].p_size = avail_sects;
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label->d_partitions[2].p_offset = offset;
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label->d_partitions[2].p_fsize = DEFFSIZE; /* XXX */
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label->d_partitions[2].p_fstype = FS_UNUSED;
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label->d_partitions[2].p_frag = DEFFRAG;
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label->d_partitions[3].p_size = label->d_secperunit;
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label->d_partitions[3].p_offset = 0;
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label->d_partitions[3].p_fsize = DEFFSIZE;
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label->d_partitions[3].p_fstype = FS_UNUSED;
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label->d_partitions[3].p_frag = DEFFRAG;
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/* Default root */
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nsects = calc_sects(DEFROOTSIZE, label);
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label->d_partitions[0].p_size = nsects;
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label->d_partitions[0].p_offset = offset;
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label->d_partitions[0].p_fsize = DEFFSIZE;
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label->d_partitions[0].p_fstype = FS_BSDFFS;
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label->d_partitions[0].p_frag = DEFFRAG;
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avail_sects -= nsects;
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offset += nsects;
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nsects = calc_sects(DEFSWAPSIZE, label);
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label->d_partitions[1].p_size = nsects;
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label->d_partitions[1].p_offset = offset;
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label->d_partitions[1].p_fsize = DEFFSIZE;
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label->d_partitions[1].p_fstype = FS_SWAP;
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label->d_partitions[1].p_frag = DEFFRAG;
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avail_sects -= nsects;
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offset += nsects;
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nsects = calc_sects(DEFUSRSIZE, label);
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if (avail_sects > nsects)
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nsects = avail_sects;
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label->d_partitions[4].p_size = nsects;
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label->d_partitions[4].p_offset = offset;
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label->d_partitions[4].p_fsize = DEFFSIZE;
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label->d_partitions[4].p_fstype = FS_BSDFFS;
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label->d_partitions[4].p_frag = DEFFRAG;
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#ifdef notyet
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if (custom_install)
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customise_label()
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#endif
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}
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char *
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part_type(int type)
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{
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int num_types = (sizeof(part_types)/sizeof(struct part_type));
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int next_type = 0;
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struct part_type *ptr = part_types;
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while (next_type < num_types) {
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if(ptr->type == type)
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return(ptr->name);
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ptr++;
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next_type++;
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}
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return("Uknown");
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}
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int
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disk_size(int disk)
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{
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struct disklabel *label = avail_disklabels + disk;
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int size;
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size = label->d_secsize * label->d_nsectors
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* label->d_ntracks * label->d_ncylinders;
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return(size/1024/1024);
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}
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int
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read_bootarea(int fd)
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{
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if (lseek(fd, 0, SEEK_SET) == -1) {
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sprintf(errmsg, "Couldn't seek for bootarea read\n");
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return(-1);
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}
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if (read(fd, &(bootarea->bootcode), 512) == -1) {
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sprintf(errmsg, "Failed to read bootarea\n");
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return(-1);
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}
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/* Validate the bootarea */
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/* XXX -- need to validate contents too */
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if (bootarea->signature != BOOT_MAGIC) {
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sprintf(errmsg, "Bootarea invalid\n");
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return(-1);
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}
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return(0);
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}
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int
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write_bootarea(int fd)
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{
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if (lseek(fd, 0, SEEK_SET) == -1) {
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sprintf(errmsg, "Couldn't seek for bootarea write\n");
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return(-1);
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}
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if (enable_label(fd) == -1)
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return(-1);
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if (write(fd, bootarea, sizeof(bootarea)) == -1) {
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sprintf(errmsg, "Failed to write bootarea\n");
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return(-1);
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}
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if (disable_label(fd) == -1)
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return(-1);
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return(0);
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}
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