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Diffstat (limited to 'sys/boot/i386/gptboot/gptboot.c')
-rw-r--r--sys/boot/i386/gptboot/gptboot.c812
1 files changed, 0 insertions, 812 deletions
diff --git a/sys/boot/i386/gptboot/gptboot.c b/sys/boot/i386/gptboot/gptboot.c
deleted file mode 100644
index ad7e8e9c1623..000000000000
--- a/sys/boot/i386/gptboot/gptboot.c
+++ /dev/null
@@ -1,812 +0,0 @@
-/*
- * Copyright (c) 1998 Robert Nordier
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are freely
- * permitted provided that the above copyright notice and this
- * paragraph and the following disclaimer are duplicated in all
- * such forms.
- *
- * This software is provided "AS IS" and without any express or
- * implied warranties, including, without limitation, the implied
- * warranties of merchantability and fitness for a particular
- * purpose.
- */
-
-/*
- * $FreeBSD$
- */
-
-#include <sys/param.h>
-#include <sys/reboot.h>
-#include <sys/diskslice.h>
-#include <sys/disklabel.h>
-#include <sys/dirent.h>
-#include <machine/bootinfo.h>
-
-#include <ufs/ffs/fs.h>
-#include <ufs/ufs/dinode.h>
-
-#include <stdarg.h>
-
-#include <a.out.h>
-#include <elf.h>
-
-#include <btxv86.h>
-
-#include "lib.h"
-
-#define RBX_ASKNAME 0x0 /* -a */
-#define RBX_SINGLE 0x1 /* -s */
-#define RBX_DFLTROOT 0x5 /* -r */
-#define RBX_KDB 0x6 /* -d */
-#define RBX_CONFIG 0xa /* -c */
-#define RBX_VERBOSE 0xb /* -v */
-#define RBX_SERIAL 0xc /* -h */
-#define RBX_CDROM 0xd /* -C */
-#define RBX_GDB 0xf /* -g */
-#define RBX_DUAL 0x1d /* -D */
-#define RBX_PROBEKBD 0x1e /* -P */
-
-#define RBX_MASK 0xffff
-
-#define PATH_CONFIG "/boot.config"
-#define PATH_BOOT3 "/boot/loader"
-#define PATH_KERNEL "/kernel"
-
-#define ARGS 0x900
-#define NOPT 11
-#define BSIZEMAX 8192
-#define NDEV 5
-#define MEM_BASE 0x12
-#define MEM_EXT 0x15
-#define V86_CY(x) ((x) & 1)
-#define V86_ZR(x) ((x) & 0x40)
-
-#define DRV_HARD 0x80
-#define DRV_MASK 0x7f
-
-#define TYPE_AD 0
-#define TYPE_WD 1
-#define TYPE_WFD 2
-#define TYPE_FD 3
-#define TYPE_DA 4
-
-extern uint32_t _end;
-
-static const char optstr[NOPT] = "DhaCcdgPrsv";
-static const unsigned char flags[NOPT] = {
- RBX_DUAL,
- RBX_SERIAL,
- RBX_ASKNAME,
- RBX_CDROM,
- RBX_CONFIG,
- RBX_KDB,
- RBX_GDB,
- RBX_PROBEKBD,
- RBX_DFLTROOT,
- RBX_SINGLE,
- RBX_VERBOSE
-};
-
-static const char *const dev_nm[] = {"ad", "wd", " ", "fd", "da"};
-static const unsigned dev_maj[] = {30, 0, 1, 2, 4};
-
-static struct dsk {
- unsigned drive;
- unsigned type;
- unsigned unit;
- unsigned slice;
- unsigned part;
- unsigned start;
- int init;
- int meta;
-} dsk;
-static char cmd[512];
-static char kname[1024];
-static uint32_t opts;
-static struct bootinfo bootinfo;
-static int ls;
-static uint32_t fs_off;
-static uint8_t ioctrl = 0x1;
-
-void exit(int);
-static void load(const char *);
-static int parse(char *);
-static void readfile(const char *, void *, size_t);
-static ino_t lookup(const char *);
-static int fsfind(const char *, ino_t *);
-static int xfsread(ino_t, void *, size_t);
-static ssize_t fsread(ino_t, void *, size_t);
-static int dskread(void *, unsigned, unsigned);
-static int printf(const char *,...);
-static void getstr(char *, int);
-static int putchar(int);
-static int getchar(void);
-static void *memcpy(void *, const void *, size_t);
-static int strcmp(const char *, const char *);
-static void *malloc(size_t);
-static uint32_t memsize(int);
-static uint32_t drvinfo(int);
-static int drvread(void *, unsigned, unsigned);
-static int keyhit(unsigned);
-static int xputc(int);
-static int xgetc(int);
-static void putc(int);
-static int getc(int);
-
-int
-main(void)
-{
- int autoboot, i;
-
- v86.ctl = V86_FLAGS;
- dsk.drive = *(uint8_t *)PTOV(ARGS);
- dsk.type = dsk.drive & DRV_HARD ? TYPE_AD : TYPE_FD;
- dsk.unit = dsk.drive & DRV_MASK;
- dsk.slice = *(uint8_t *)PTOV(ARGS + 1) + 1;
- bootinfo.bi_version = BOOTINFO_VERSION;
- bootinfo.bi_size = sizeof(bootinfo);
- bootinfo.bi_basemem = memsize(MEM_BASE);
- bootinfo.bi_extmem = memsize(MEM_EXT);
- bootinfo.bi_memsizes_valid++;
- for (i = 0; i < N_BIOS_GEOM; i++)
- bootinfo.bi_bios_geom[i] = drvinfo(i);
- autoboot = 2;
- readfile(PATH_CONFIG, cmd, sizeof(cmd));
- if (*cmd) {
- printf("%s: %s", PATH_CONFIG, cmd);
- if (parse(cmd))
- autoboot = 0;
- *cmd = 0;
- }
- if (autoboot && !*kname) {
- if (autoboot == 2) {
- memcpy(kname, PATH_BOOT3, sizeof(PATH_BOOT3));
- if (!keyhit(0x37)) {
- load(kname);
- autoboot = 1;
- }
- }
- if (autoboot == 1)
- memcpy(kname, PATH_KERNEL, sizeof(PATH_KERNEL));
- }
- for (;;) {
- printf(" \n>> FreeBSD/i386 BOOT\n"
- "Default: %u:%s(%u,%c)%s\n"
- "boot: ",
- dsk.drive & DRV_MASK, dev_nm[dsk.type], dsk.unit,
- 'a' + dsk.part, kname);
- if (ioctrl & 0x2)
- sio_flush();
- if (!autoboot || keyhit(0x5a))
- getstr(cmd, sizeof(cmd));
- else
- putchar('\n');
- autoboot = 0;
- if (parse(cmd))
- putchar('\a');
- else
- load(kname);
- }
-}
-
-void
-exit(int x)
-{
-}
-
-static void
-load(const char *fname)
-{
- union {
- struct exec ex;
- Elf32_Ehdr eh;
- } hdr;
- Elf32_Phdr ep[2];
- Elf32_Shdr es[2];
- caddr_t p;
- ino_t ino;
- uint32_t addr, x;
- int fmt, i, j;
-
- if (!(ino = lookup(fname))) {
- if (!ls)
- printf("No %s\n", fname);
- return;
- }
- if (xfsread(ino, &hdr, sizeof(hdr)))
- return;
- if (N_GETMAGIC(hdr.ex) == ZMAGIC)
- fmt = 0;
- else if (IS_ELF(hdr.eh))
- fmt = 1;
- else {
- printf("Invalid %s\n", "format");
- return;
- }
- if (fmt == 0) {
- addr = hdr.ex.a_entry & 0xffffff;
- p = PTOV(addr);
- fs_off = PAGE_SIZE;
- if (xfsread(ino, p, hdr.ex.a_text))
- return;
- p += roundup2(hdr.ex.a_text, PAGE_SIZE);
- if (xfsread(ino, p, hdr.ex.a_data))
- return;
- p += hdr.ex.a_data + roundup2(hdr.ex.a_bss, PAGE_SIZE);
- bootinfo.bi_symtab = VTOP(p);
- memcpy(p, &hdr.ex.a_syms, sizeof(hdr.ex.a_syms));
- p += sizeof(hdr.ex.a_syms);
- if (hdr.ex.a_syms) {
- if (xfsread(ino, p, hdr.ex.a_syms))
- return;
- p += hdr.ex.a_syms;
- if (xfsread(ino, p, sizeof(int)))
- return;
- x = *(uint32_t *)p;
- p += sizeof(int);
- x -= sizeof(int);
- if (xfsread(ino, p, x))
- return;
- p += x;
- }
- } else {
- fs_off = hdr.eh.e_phoff;
- for (j = i = 0; i < hdr.eh.e_phnum && j < 2; i++) {
- if (xfsread(ino, ep + j, sizeof(ep[0])))
- return;
- if (ep[j].p_type == PT_LOAD)
- j++;
- }
- for (i = 0; i < 2; i++) {
- p = PTOV(ep[i].p_paddr & 0xffffff);
- fs_off = ep[i].p_offset;
- if (xfsread(ino, p, ep[i].p_filesz))
- return;
- }
- p += roundup2(ep[1].p_memsz, PAGE_SIZE);
- bootinfo.bi_symtab = VTOP(p);
- if (hdr.eh.e_shnum == hdr.eh.e_shstrndx + 3) {
- fs_off = hdr.eh.e_shoff + sizeof(es[0]) *
- (hdr.eh.e_shstrndx + 1);
- if (xfsread(ino, &es, sizeof(es)))
- return;
- for (i = 0; i < 2; i++) {
- memcpy(p, &es[i].sh_size, sizeof(es[i].sh_size));
- p += sizeof(es[i].sh_size);
- fs_off = es[i].sh_offset;
- if (xfsread(ino, p, es[i].sh_size))
- return;
- p += es[i].sh_size;
- }
- }
- addr = hdr.eh.e_entry & 0xffffff;
- }
- bootinfo.bi_esymtab = VTOP(p);
- bootinfo.bi_kernelname = VTOP(fname);
- bootinfo.bi_bios_dev = dsk.drive;
- __exec((caddr_t)addr, RB_BOOTINFO | (opts & RBX_MASK),
- MAKEBOOTDEV(dev_maj[dsk.type], 0, dsk.slice, dsk.unit, dsk.part),
- 0, 0, 0, VTOP(&bootinfo));
-}
-
-static int
-parse(char *arg)
-{
- char *p, *q;
- int drv, c, i;
-
- while ((c = *arg++)) {
- if (c == ' ')
- continue;
- for (p = arg; *p && *p != '\n' && *p != ' '; p++);
- if (*p)
- *p++ = 0;
- if (c == '-') {
- while ((c = *arg++)) {
- for (i = 0; c != optstr[i]; i++)
- if (i == NOPT - 1)
- return -1;
- opts ^= 1 << flags[i];
- }
- if (opts & 1 << RBX_PROBEKBD) {
- i = *(uint8_t *)PTOV(0x496) & 0x10;
- printf("Keyboard: %s\n", i ? "yes" : "no");
- if (!i)
- opts |= 1 << RBX_DUAL | 1 << RBX_SERIAL;
- opts &= ~(1 << RBX_PROBEKBD);
- }
- ioctrl = opts & 1 << RBX_DUAL ? 0x3 :
- opts & 1 << RBX_SERIAL ? 0x2 : 0x1;
- if (ioctrl & 0x2)
- sio_init();
- } else {
- for (q = arg--; *q && *q != '('; q++);
- if (*q) {
- drv = -1;
- if (arg[1] == ':') {
- if (*arg < '0' || *arg > '9')
- return -1;
- drv = *arg - '0';
- arg += 2;
- }
- if (q - arg != 2)
- return -1;
- for (i = 0; arg[0] != dev_nm[i][0] ||
- arg[1] != dev_nm[i][1]; i++)
- if (i == NDEV - 1)
- return -1;
- dsk.type = i;
- arg += 3;
- if (arg[1] != ',' || *arg < '0' || *arg > '9')
- return -1;
- dsk.unit = *arg - '0';
- arg += 2;
- dsk.slice = WHOLE_DISK_SLICE;
- if (arg[1] == ',') {
- if (*arg < '0' || *arg > '0' + NDOSPART)
- return -1;
- if ((dsk.slice = *arg - '0'))
- dsk.slice++;
- arg += 2;
- }
- if (arg[1] != ')' || *arg < 'a' || *arg > 'p')
- return -1;
- dsk.part = *arg - 'a';
- arg += 2;
- if (drv == -1)
- drv = dsk.unit;
- dsk.drive = (dsk.type == TYPE_WD ||
- dsk.type == TYPE_AD ||
- dsk.type == TYPE_DA ? DRV_HARD : 0) + drv;
- dsk.meta = 0;
- fsread(0, NULL, 0);
- }
- if ((i = p - arg - !*(p - 1))) {
- if (i >= sizeof(kname))
- return -1;
- memcpy(kname, arg, i + 1);
- }
- }
- arg = p;
- }
- return 0;
-}
-
-static void
-readfile(const char *fname, void *buf, size_t size)
-{
- ino_t ino;
-
- if ((ino = lookup(fname)))
- fsread(ino, buf, size);
-}
-
-static ino_t
-lookup(const char *path)
-{
- char name[MAXNAMLEN + 1];
- const char *s;
- ino_t ino;
- ssize_t n;
- int dt;
-
- ino = ROOTINO;
- dt = DT_DIR;
- for (;;) {
- if (*path == '/')
- path++;
- if (!*path)
- break;
- for (s = path; *s && *s != '/'; s++);
- if ((n = s - path) > MAXNAMLEN)
- return 0;
- ls = *path == '?' && n == 1 && !*s;
- memcpy(name, path, n);
- name[n] = 0;
- if ((dt = fsfind(name, &ino)) <= 0)
- break;
- path = s;
- }
- return dt == DT_REG ? ino : 0;
-}
-
-static int
-fsfind(const char *name, ino_t * ino)
-{
- char buf[DEV_BSIZE];
- struct dirent *d;
- char *s;
- ssize_t n;
-
- fs_off = 0;
- while ((n = fsread(*ino, buf, DEV_BSIZE)) > 0)
- for (s = buf; s < buf + DEV_BSIZE;) {
- d = (void *)s;
- if (ls)
- printf("%s ", d->d_name);
- else if (!strcmp(name, d->d_name)) {
- *ino = d->d_fileno;
- return d->d_type;
- }
- s += d->d_reclen;
- }
- if (n != -1 && ls)
- putchar('\n');
- return 0;
-}
-
-static int
-xfsread(ino_t inode, void *buf, size_t nbyte)
-{
- if (fsread(inode, buf, nbyte) != nbyte) {
- printf("Invalid %s\n", "format");
- return -1;
- }
- return 0;
-}
-
-static ssize_t
-fsread(ino_t inode, void *buf, size_t nbyte)
-{
- static struct fs fs;
- static struct dinode din;
- static char *blkbuf;
- static ufs_daddr_t *indbuf;
- static ino_t inomap;
- static ufs_daddr_t blkmap, indmap;
- static unsigned fsblks;
- char *s;
- ufs_daddr_t lbn, addr;
- size_t n, nb, off;
-
- if (!dsk.meta) {
- if (!blkbuf)
- blkbuf = malloc(BSIZEMAX);
- inomap = 0;
- if (dskread(blkbuf, SBOFF / DEV_BSIZE, SBSIZE / DEV_BSIZE))
- return -1;
- memcpy(&fs, blkbuf, sizeof(fs));
- if (fs.fs_magic != FS_MAGIC) {
- printf("Not ufs\n");
- return -1;
- }
- fsblks = fs.fs_bsize >> DEV_BSHIFT;
- dsk.meta++;
- }
- if (!inode)
- return 0;
- if (inomap != inode) {
- if (dskread(blkbuf, fsbtodb(&fs, ino_to_fsba(&fs, inode)),
- fsblks))
- return -1;
- din = ((struct dinode *)blkbuf)[inode % INOPB(&fs)];
- inomap = inode;
- fs_off = 0;
- blkmap = indmap = 0;
- }
- s = buf;
- if (nbyte > (n = din.di_size - fs_off))
- nbyte = n;
- nb = nbyte;
- while (nb) {
- lbn = lblkno(&fs, fs_off);
- if (lbn < NDADDR)
- addr = din.di_db[lbn];
- else {
- if (indmap != din.di_ib[0]) {
- if (!indbuf)
- indbuf = malloc(BSIZEMAX);
- if (dskread(indbuf, fsbtodb(&fs, din.di_ib[0]),
- fsblks))
- return -1;
- indmap = din.di_ib[0];
- }
- addr = indbuf[(lbn - NDADDR) % NINDIR(&fs)];
- }
- n = dblksize(&fs, &din, lbn);
- if (blkmap != addr) {
- if (dskread(blkbuf, fsbtodb(&fs, addr), n >> DEV_BSHIFT))
- return -1;
- blkmap = addr;
- }
- off = blkoff(&fs, fs_off);
- n -= off;
- if (n > nb)
- n = nb;
- memcpy(s, blkbuf + off, n);
- s += n;
- fs_off += n;
- nb -= n;
- }
- return nbyte;
-}
-
-static int
-dskread(void *buf, unsigned lba, unsigned nblk)
-{
- static char *sec;
- struct dos_partition *dp;
- struct disklabel *d;
- unsigned sl, i;
-
- if (!dsk.meta) {
- if (!sec)
- sec = malloc(DEV_BSIZE);
- dsk.start = 0;
- if (drvread(sec, DOSBBSECTOR, 1))
- return -1;
- dp = (void *)(sec + DOSPARTOFF);
- sl = dsk.slice;
- if (sl < BASE_SLICE) {
- for (i = 0; i < NDOSPART; i++)
- if (dp[i].dp_typ == DOSPTYP_386BSD &&
- (dp[i].dp_flag & 0x80 || sl < BASE_SLICE)) {
- sl = BASE_SLICE + i;
- if (dp[i].dp_flag & 0x80 ||
- dsk.slice == COMPATIBILITY_SLICE)
- break;
- }
- if (dsk.slice == WHOLE_DISK_SLICE)
- dsk.slice = sl;
- }
- if (sl != WHOLE_DISK_SLICE) {
- if (sl != COMPATIBILITY_SLICE)
- dp += sl - BASE_SLICE;
- if (dp->dp_typ != DOSPTYP_386BSD) {
- printf("Invalid %s\n", "slice");
- return -1;
- }
- dsk.start = dp->dp_start;
- }
- if (drvread(sec, dsk.start + LABELSECTOR, 1))
- return -1;
- d = (void *)(sec + LABELOFFSET);
- if (d->d_magic != DISKMAGIC || d->d_magic2 != DISKMAGIC) {
- if (dsk.part != RAW_PART) {
- printf("Invalid %s\n", "label");
- return -1;
- }
- } else {
- if (!dsk.init) {
- if (d->d_type == DTYPE_SCSI)
- dsk.type = TYPE_DA;
- dsk.init++;
- }
- if (dsk.part >= d->d_npartitions ||
- !d->d_partitions[dsk.part].p_size) {
- printf("Invalid %s\n", "partition");
- return -1;
- }
- dsk.start = d->d_partitions[dsk.part].p_offset;
- }
- }
- return drvread(buf, dsk.start + lba, nblk);
-}
-
-static int
-printf(const char *fmt,...)
-{
- static const char digits[16] = "0123456789abcdef";
- va_list ap;
- char buf[10];
- char *s;
- unsigned r, u;
- int c;
-
- va_start(ap, fmt);
- while ((c = *fmt++)) {
- if (c == '%') {
- c = *fmt++;
- switch (c) {
- case 'c':
- putchar(va_arg(ap, int));
- continue;
- case 's':
- for (s = va_arg(ap, char *); *s; s++)
- putchar(*s);
- continue;
- case 'u':
- case 'x':
- r = c == 'u' ? 10U : 16U;
- u = va_arg(ap, unsigned);
- s = buf;
- do
- *s++ = digits[u % r];
- while (u /= r);
- while (--s >= buf)
- putchar(*s);
- continue;
- }
- }
- putchar(c);
- }
- va_end(ap);
- return 0;
-}
-
-static void
-getstr(char *str, int size)
-{
- char *s;
- int c;
-
- s = str;
- do {
- switch (c = getchar()) {
- case 0:
- break;
- case '\b':
- case '\177':
- if (s > str) {
- s--;
- putchar('\b');
- putchar(' ');
- } else
- c = 0;
- break;
- case '\n':
- *s = 0;
- break;
- default:
- if (s - str < size - 1)
- *s++ = c;
- }
- if (c)
- putchar(c);
- } while (c != '\n');
-}
-
-static int
-putchar(int c)
-{
- if (c == '\n')
- xputc('\r');
- return xputc(c);
-}
-
-static int
-getchar(void)
-{
- int c;
-
- c = xgetc(0);
- if (c == '\r')
- c = '\n';
- return c;
-}
-
-static void *
-memcpy(void *dst, const void *src, size_t size)
-{
- const char *s;
- char *d;
-
- for (d = dst, s = src; size; size--)
- *d++ = *s++;
- return dst;
-}
-
-static int
-strcmp(const char *s1, const char *s2)
-{
- for (; *s1 == *s2 && *s1; s1++, s2++);
- return (u_char)*s1 - (u_char)*s2;
-}
-
-static void *
-malloc(size_t size)
-{
- static uint32_t next;
- void *p;
-
- if (!next)
- next = roundup2(__base + _end, 0x10000) - __base;
- p = (void *)next;
- next += size;
- return p;
-}
-
-static uint32_t
-memsize(int type)
-{
- v86.addr = type;
- v86.eax = 0x8800;
- v86int();
- return v86.eax;
-}
-
-static uint32_t
-drvinfo(int drive)
-{
- v86.addr = 0x13;
- v86.eax = 0x800;
- v86.edx = DRV_HARD + drive;
- v86int();
- if (V86_CY(v86.efl))
- return 0x4f010f;
- return ((v86.ecx & 0xc0) << 18) | ((v86.ecx & 0xff00) << 8) |
- (v86.edx & 0xff00) | (v86.ecx & 0x3f);
-}
-
-static int
-drvread(void *buf, unsigned lba, unsigned nblk)
-{
- static unsigned c = 0x2d5c7c2f;
-
- printf("%c\b", c = c << 8 | c >> 24);
- v86.ctl = V86_ADDR | V86_CALLF | V86_FLAGS;
- v86.addr = 0x704; /* call to xread in boot1 */
- v86.es = VTOPSEG(buf);
- v86.eax = lba;
- v86.ebx = VTOPOFF(buf);
- v86.ecx = lba >> 16;
- v86.edx = nblk << 8 | dsk.drive;
- v86int();
- v86.ctl = V86_FLAGS;
- if (V86_CY(v86.efl)) {
- printf("Disk error 0x%x (lba=0x%x)\n", v86.eax >> 8 & 0xff,
- lba);
- return -1;
- }
- return 0;
-}
-
-static int
-keyhit(unsigned ticks)
-{
- uint32_t t0, t1;
-
- t0 = 0;
- for (;;) {
- if (xgetc(1))
- return 1;
- t1 = *(uint32_t *)PTOV(0x46c);
- if (!t0)
- t0 = t1;
- if (t1 < t0 || t1 >= t0 + ticks)
- return 0;
- }
-}
-
-static int
-xputc(int c)
-{
- if (ioctrl & 0x1)
- putc(c);
- if (ioctrl & 0x2)
- sio_putc(c);
- return c;
-}
-
-static int
-xgetc(int fn)
-{
- for (;;) {
- if (ioctrl & 0x1 && getc(1))
- return fn ? 1 : getc(0);
- if (ioctrl & 0x2 && sio_ischar())
- return fn ? 1 : sio_getc();
- if (fn)
- return 0;
- }
-}
-
-static void
-putc(int c)
-{
- v86.addr = 0x10;
- v86.eax = 0xe00 | (c & 0xff);
- v86.ebx = 0x7;
- v86int();
-}
-
-static int
-getc(int fn)
-{
- v86.addr = 0x16;
- v86.eax = fn << 8;
- v86int();
- return fn == 0 ? v86.eax & 0xff : !V86_ZR(v86.efl);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 10:42:41 +0000