mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
acc2f44a41
submitted by: Suleiman Souhlal <refugee@segfaulted.com> approved by: phk, jhb
288 lines
6.4 KiB
C
288 lines
6.4 KiB
C
/*
|
|
* ----------------------------------------------------------------------------
|
|
* "THE BEER-WARE LICENSE" (Revision 42):
|
|
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
|
|
* can do whatever you want with this stuff. If we meet some day, and you think
|
|
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
|
|
* ----------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <string.h>
|
|
#include <inttypes.h>
|
|
#include <err.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/stdint.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/disklabel.h>
|
|
#include <sys/gpt.h>
|
|
#include <paths.h>
|
|
#include "libdisk.h"
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
|
|
#ifdef DEBUG
|
|
#define DPRINT(x) warn x
|
|
#define DPRINTX(x) warnx x
|
|
#else
|
|
#define DPRINT(x)
|
|
#define DPRINTX(x)
|
|
#endif
|
|
|
|
struct disk *
|
|
Int_Open_Disk(const char *name, char *conftxt)
|
|
{
|
|
struct disk *d;
|
|
int i;
|
|
char *p, *q, *r, *a, *b, *n, *t, *sn;
|
|
daddr_t o, len, off;
|
|
u_int l, s, ty, sc, hd, alt;
|
|
daddr_t lo[10];
|
|
|
|
for (p = conftxt; p != NULL && *p; p = strchr(p, '\n')) {
|
|
if (*p == '\n')
|
|
p++;
|
|
a = strsep(&p, " ");
|
|
if (strcmp(a, "0"))
|
|
continue;
|
|
|
|
a = strsep(&p, " ");
|
|
if (strcmp(a, "DISK"))
|
|
continue;
|
|
|
|
a = strsep(&p, " ");
|
|
if (strcmp(a, name))
|
|
continue;
|
|
break;
|
|
}
|
|
|
|
q = strchr(p, '\n');
|
|
if (q != NULL)
|
|
*q++ = '\0';
|
|
|
|
d = (struct disk *)calloc(sizeof *d, 1);
|
|
if(d == NULL)
|
|
return NULL;
|
|
|
|
d->name = strdup(name);
|
|
|
|
a = strsep(&p, " "); /* length in bytes */
|
|
len = strtoimax(a, &r, 0);
|
|
if (*r) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
|
|
a = strsep(&p, " "); /* sectorsize */
|
|
s = strtoul(a, &r, 0);
|
|
if (*r) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
|
|
if (s == 0)
|
|
return (NULL);
|
|
d->sector_size = s;
|
|
len /= s; /* media size in number of sectors. */
|
|
|
|
if (Add_Chunk(d, 0, len, name, whole, 0, 0, "-")) {
|
|
DPRINT(("Failed to add 'whole' chunk"));
|
|
}
|
|
|
|
for (;;) {
|
|
a = strsep(&p, " ");
|
|
if (a == NULL)
|
|
break;
|
|
b = strsep(&p, " ");
|
|
o = strtoimax(b, &r, 0);
|
|
if (*r) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
if (!strcmp(a, "hd"))
|
|
d->bios_hd = o;
|
|
else if (!strcmp(a, "sc"))
|
|
d->bios_sect = o;
|
|
else
|
|
printf("HUH ? <%s> <%s>\n", a, b);
|
|
}
|
|
|
|
/*
|
|
* Calculate the number of cylinders this disk must have. If we have
|
|
* an obvious insanity, we set the number of cyclinders to zero.
|
|
*/
|
|
o = d->bios_hd * d->bios_sect;
|
|
d->bios_cyl = (o != 0) ? len / o : 0;
|
|
|
|
p = q;
|
|
lo[0] = 0;
|
|
|
|
for (; p != NULL && *p; p = q) {
|
|
if (sn)
|
|
sn = NULL;
|
|
q = strchr(p, '\n');
|
|
if (q != NULL)
|
|
*q++ = '\0';
|
|
a = strsep(&p, " "); /* Index */
|
|
if (!strcmp(a, "0"))
|
|
break;
|
|
l = strtoimax(a, &r, 0);
|
|
if (*r) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
t = strsep(&p, " "); /* Type {SUN, BSD, MBR, PC98, GPT} */
|
|
n = strsep(&p, " "); /* name */
|
|
a = strsep(&p, " "); /* len */
|
|
len = strtoimax(a, &r, 0);
|
|
if (*r) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
a = strsep(&p, " "); /* secsize */
|
|
s = strtoimax(a, &r, 0);
|
|
if (*r) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
for (;;) {
|
|
a = strsep(&p, " ");
|
|
if (a == NULL)
|
|
break;
|
|
/* XXX: Slice name may include a space. */
|
|
if (!strcmp(a, "sn")) {
|
|
sn = p;
|
|
break;
|
|
}
|
|
b = strsep(&p, " ");
|
|
o = strtoimax(b, &r, 0);
|
|
/* APPLE have ty as a string */
|
|
if ((*r) && strcmp(t, "APPLE")) {
|
|
printf("BARF %d <%d>\n", __LINE__, *r);
|
|
exit (0);
|
|
}
|
|
if (!strcmp(a, "o"))
|
|
off = o;
|
|
else if (!strcmp(a, "i"))
|
|
i = o;
|
|
else if (!strcmp(a, "ty"))
|
|
ty = o;
|
|
else if (!strcmp(a, "sc"))
|
|
sc = o;
|
|
else if (!strcmp(a, "hd"))
|
|
hd = o;
|
|
else if (!strcmp(a, "alt"))
|
|
alt = o;
|
|
}
|
|
|
|
/* PLATFORM POLICY BEGIN ----------------------------------- */
|
|
if (platform == p_sparc64 && !strcmp(t, "SUN") && i == 2)
|
|
continue;
|
|
if (platform == p_sparc64 && !strcmp(t, "SUN") &&
|
|
d->chunks->part->part == NULL) {
|
|
d->bios_hd = hd;
|
|
d->bios_sect = sc;
|
|
o = d->chunks->size / (hd * sc);
|
|
o *= (hd * sc);
|
|
o -= alt * hd * sc;
|
|
if (Add_Chunk(d, 0, o, name, freebsd, 0, 0, "-")) {
|
|
DPRINT(("Failed to add 'freebsd' chunk"));
|
|
}
|
|
}
|
|
if (platform == p_alpha && !strcmp(t, "BSD") &&
|
|
d->chunks->part->part == NULL) {
|
|
if (Add_Chunk(d, 0, d->chunks->size, name, freebsd,
|
|
0, 0, "-")) {
|
|
DPRINT(("Failed to add 'freebsd' chunk"));
|
|
}
|
|
}
|
|
if (!strcmp(t, "BSD") && i == RAW_PART)
|
|
continue;
|
|
/* PLATFORM POLICY END ------------------------------------- */
|
|
|
|
off /= s;
|
|
len /= s;
|
|
off += lo[l - 1];
|
|
lo[l] = off;
|
|
if (!strcmp(t, "SUN"))
|
|
i = Add_Chunk(d, off, len, n, part, 0, 0, 0);
|
|
else if (!strncmp(t, "MBR", 3)) {
|
|
switch (ty) {
|
|
case 0xa5:
|
|
i = Add_Chunk(d, off, len, n, freebsd, ty, 0, 0);
|
|
break;
|
|
case 0x01:
|
|
case 0x04:
|
|
case 0x06:
|
|
case 0x0b:
|
|
case 0x0c:
|
|
case 0x0e:
|
|
i = Add_Chunk(d, off, len, n, fat, ty, 0, 0);
|
|
break;
|
|
case 0xef: /* EFI */
|
|
i = Add_Chunk(d, off, len, n, efi, ty, 0, 0);
|
|
break;
|
|
default:
|
|
i = Add_Chunk(d, off, len, n, mbr, ty, 0, 0);
|
|
break;
|
|
}
|
|
} else if (!strcmp(t, "BSD"))
|
|
i = Add_Chunk(d, off, len, n, part, ty, 0, 0);
|
|
else if (!strcmp(t, "PC98")) {
|
|
switch (ty & 0x7f) {
|
|
case 0x14:
|
|
i = Add_Chunk(d, off, len, n, freebsd, ty, 0,
|
|
sn);
|
|
break;
|
|
case 0x20:
|
|
case 0x21:
|
|
case 0x22:
|
|
case 0x23:
|
|
case 0x24:
|
|
i = Add_Chunk(d, off, len, n, fat, ty, 0, sn);
|
|
break;
|
|
default:
|
|
i = Add_Chunk(d, off, len, n, pc98, ty, 0, sn);
|
|
break;
|
|
}
|
|
} else if (!strcmp(t, "GPT"))
|
|
i = Add_Chunk(d, off, len, n, ty, 0, 0, 0);
|
|
else if (!strcmp(t, "BDE"))
|
|
; /* nothing */
|
|
else if (!strcmp(t, "CCD"))
|
|
; /* nothing */
|
|
else if (!strcmp(t, "APPLE"))
|
|
i = Add_Chunk(d, off, len, n, apple, 0, 0, sn);
|
|
else {
|
|
printf("BARF %d\n", __LINE__);
|
|
exit(0);
|
|
}
|
|
}
|
|
/* PLATFORM POLICY BEGIN ------------------------------------- */
|
|
/* We have a chance to do things on a blank disk here */
|
|
if (platform == p_sparc64 && d->chunks->part->part == NULL) {
|
|
hd = d->bios_hd;
|
|
sc = d->bios_sect;
|
|
o = d->chunks->size / (hd * sc);
|
|
o *= (hd * sc);
|
|
o -= 2 * hd * sc;
|
|
if (Add_Chunk(d, 0, o, name, freebsd, 0, 0, "-")) {
|
|
DPRINT(("Failed to add 'freebsd' chunk"));
|
|
}
|
|
}
|
|
/* PLATFORM POLICY END --------------------------------------- */
|
|
|
|
return (d);
|
|
i = 0;
|
|
}
|