freebsd-nq/lib/libdisk/disk.c
Poul-Henning Kamp 844c9bb884 Rely on sysctl kern.disks to be there, and get rid of one of the far too
many lists of disk device driver names in the system.  At this point
we should really get the names from the XML, but hey...
2002-10-23 20:15:10 +00:00

1069 lines
24 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 <err.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/disklabel.h>
#include <sys/diskslice.h>
#ifndef PC98
#include <sys/diskmbr.h>
#endif
#include <paths.h>
#include "libdisk.h"
#ifndef PC98
#define HAVE_GEOM
#endif
#ifdef HAVE_GEOM
#include <ctype.h>
#include <errno.h>
#include <assert.h>
#endif /*HAVE_GEOM*/
#ifndef PC98
#define DOSPTYP_EXTENDED 5
#define DOSPTYP_ONTRACK 84
#endif
#ifdef DEBUG
#define DPRINT(x) warn x
#define DPRINTX(x) warnx x
#else
#define DPRINT(x)
#define DPRINTX(x)
#endif
const char *chunk_n[] = {
"whole",
"unknown",
"fat",
"freebsd",
"extended",
"part",
"unused",
NULL
};
struct disk *
Open_Disk(const char *name)
{
return Int_Open_Disk(name, 0);
}
#ifndef PC98
static u_int32_t
Read_Int32(u_int32_t *p)
{
u_int8_t *bp = (u_int8_t *)p;
return bp[0] | (bp[1] << 8) | (bp[2] << 16) | (bp[3] << 24);
}
#endif
#ifdef HAVE_GEOM
/*
* XXX BEGIN HACK XXX
* Scan/parse the XML geom data to retrieve what we need to
* carry out the work of Int_Open_Disk. This is a total hack
* and should be replaced with a real XML parser.
*/
typedef enum {
XML_MESH,
XML_MESH_END,
XML_CLASS,
XML_CLASS_END,
XML_GEOM,
XML_GEOM_END,
XML_CONFIG,
XML_CONFIG_END,
XML_PROVIDER,
XML_PROVIDER_END,
XML_NAME,
XML_NAME_END,
XML_INDEX,
XML_INDEX_END,
XML_SECLENGTH,
XML_SECLENGTH_END,
XML_SECOFFSET,
XML_SECOFFSET_END,
XML_TYPE,
XML_TYPE_END,
XML_MEDIASIZE,
XML_MEDIASIZE_END,
XML_SECTORSIZE,
XML_SECTORSIZE_END,
XML_FWHEADS,
XML_FWHEADS_END,
XML_FWSECTORS,
XML_FWSECTORS_END,
XML_OTHER,
XML_OTHER_END
} XMLToken;
const struct {
XMLToken t;
const char* token;
const char* name;
} xmltokens[] = {
{ XML_MESH, "mesh", "XML_MESH" },
{ XML_CLASS, "class", "XML_CLASS" },
{ XML_GEOM, "geom", "XML_GEOM" },
{ XML_CONFIG, "config", "XML_CONFIG" },
{ XML_PROVIDER, "provider", "XML_PROVIDE" },
{ XML_NAME, "name", "XML_NAME" },
{ XML_INDEX, "index", "XML_INDEX" },
{ XML_SECLENGTH, "seclength", "XML_SECLENGTH" },
{ XML_SECOFFSET, "secoffset", "XML_SECOFFSET" },
{ XML_TYPE, "type", "XML_TYPE" },
{ XML_FWHEADS, "fwheads", "XML_FWHEADS" },
{ XML_FWSECTORS, "fwsectors", "XML_FWSECTORS" },
{ XML_MEDIASIZE, "mediasize", "XML_MEDIASIZE" },
{ XML_SECTORSIZE, "sectorsize", "XML_SECTORSIZE" },
/* NB: this must be last */
{ XML_OTHER, NULL, "XML_OTHER" },
};
#define N(x) (sizeof (x) / sizeof (x[0]))
#ifdef DEBUG
static const char*
xmltokenname(XMLToken t)
{
int i;
for (i = 0; i < N(xmltokens); i++) {
if (t == xmltokens[i].t)
return xmltokens[i].name;
if ((t-1) == xmltokens[i].t) {
static char tbuf[80];
snprintf(tbuf, sizeof (tbuf), "%s_END",
xmltokens[i].name);
return tbuf;
}
}
return "???";
}
#endif /*DEBUG*/
/*
* Parse the next XML token delimited by <..>. If the token
* has a "builtin terminator" (<... />) then just skip it and
* go the next token.
*/
static int
xmltoken(const char *start, const char **next, XMLToken *t)
{
const char *cp = start;
const char *token;
int i;
again:
while (*cp != '<') {
if (*cp == '\0') {
*next = cp;
DPRINTX(("xmltoken: EOD"));
return 0;
}
cp++;
}
token = ++cp;
for (; *cp && *cp != '>' && !isspace(*cp); cp++)
;
if (*cp == '\0') {
*next = cp;
DPRINTX(("xmltoken: EOD"));
return 0;
}
*t = (*token == '/');
if (*t)
token++;
for (i = 0; xmltokens[i].token != NULL; i++)
if (strncasecmp(token, xmltokens[i].token, cp-token) == 0)
break;
*t += xmltokens[i].t;
/* now collect the remainder of the string */
for (; *cp != '>' && *cp != '\0'; cp++)
;
if (*cp == '\0') {
*next = cp;
DPRINTX(("xmltoken: EOD"));
return 0;
}
if (cp > token && cp[-1] == '/') {
/* e.g. <geom ref="0xc1c8c100"/> */
start = cp+1;
goto again;
}
*next = cp+1;
DPRINTX(("xmltoken: %s \"%.*s\"", xmltokenname(*t), cp-token, token));
return 1;
}
/*
* Parse and discard XML up to the token terminator.
*/
static int
discardxml(const char **next, XMLToken terminator)
{
const char *xml = *next;
XMLToken t;
DPRINTX(("discard XML up to %s", xmltokenname(terminator)));
for (;;) {
if (xmltoken(xml, next, &t) == 0)
return EINVAL;
if (t == terminator)
break;
if ((t & 1) == 0) {
int error = discardxml(next, t+1);
if (error)
return error;
}
xml = *next;
}
return 0;
}
/*
* Parse XML from between a range of markers; e.g. <mesh> ... </mesh>.
* When the specified class name is located we descend looking for the
* geometry information given by diskname. Once inside there we process
* tags calling f back for each useful one. The arg is passed into f
* for use in storing the parsed data.
*/
static int
parsexmlpair(
const char *xml,
const char **next,
const char *classname,
XMLToken terminator,
const char *diskname,
int (*f)(void *, XMLToken, u_int *, u_int64_t),
void *arg
)
{
const char *cp;
XMLToken t;
int error;
u_int ix = (u_int) -1;
DPRINTX(("parse XML up to %s", xmltokenname(terminator)));
do {
if (xmltoken(xml, next, &t) == 0) {
error = EINVAL;
break;
}
if (t == terminator) {
error = 0;
break;
}
if (t & 1) { /* </mumble> w/o matching <mumble> */
DPRINTX(("Unexpected token %s", xmltokenname(t)));
error = EINVAL;
break;
}
switch ((int) t) {
case XML_NAME:
for (cp = *next; *cp && *cp != '<'; cp++)
;
if (*cp == '\0') {
DPRINTX(("parsexmlpair: EOD"));
error = EINVAL;
goto done;
}
DPRINTX(("parsexmlpair: \"%.*s\"", cp-*next, *next));
switch ((int) terminator) {
case XML_CLASS_END:
if (strncasecmp(*next, classname, cp-*next))
return discardxml(next, terminator);
break;
case XML_GEOM_END:
if (strncasecmp(*next, diskname, cp-*next))
return discardxml(next, terminator);
break;
}
break;
case XML_SECOFFSET:
case XML_SECLENGTH:
case XML_TYPE:
if (ix == (u_int) -1) {
DPRINTX(("parsexmlpair: slice data w/o "
"preceding index"));
error = EINVAL;
goto done;
}
/* fall thru... */
case XML_INDEX:
case XML_FWHEADS:
case XML_FWSECTORS:
case XML_MEDIASIZE:
case XML_SECTORSIZE:
if (terminator != XML_CONFIG_END &&
terminator != XML_PROVIDER_END) {
DPRINTX(("parsexmlpair: %s in unexpected "
"context: terminator %s",
xmltokenname(t),
xmltokenname(terminator)));
error = EINVAL;
goto done;
}
error = (*f)(arg, t, &ix, strtoull(*next, NULL, 10));
if (error)
goto done;
break;
}
error = parsexmlpair(*next, &xml, classname,
t+1, diskname, f, arg);
} while (error == 0);
done:
return error;
}
/*
* XML parser. Just barely smart enough to handle the
* gibberish that geom passed back from the kernel.
*/
static int
xmlparse(
const char *confxml,
const char *classname,
const char *diskname,
int (*f)(void *, XMLToken, u_int *, u_int64_t),
void *arg
)
{
const char *next;
XMLToken t;
int error;
next = confxml;
while (xmltoken(next, &next, &t) && t != XML_MESH)
;
if (t == XML_MESH)
error = parsexmlpair(next, &next, classname, XML_MESH_END, diskname, f, arg);
else {
DPRINTX(("xmlparse: expecting mesh token, got %s",
xmltokenname(t)));
error = EINVAL;
}
return (error ? -1 : 0);
}
/*
* Callback to collect slice-related data.
*/
static int
assignToSlice(void *arg, XMLToken t, u_int *slice, u_int64_t v)
{
struct diskslices *ds = (struct diskslices *) arg;
switch ((int) t) {
case XML_INDEX:
*slice = BASE_SLICE + (u_int) v;
if (*slice >= MAX_SLICES) {
DPRINTX(("assignToSlice: invalid slice index %u > max %u",
*slice, MAX_SLICES));
return EINVAL;
}
if (*slice >= ds->dss_nslices)
ds->dss_nslices = (*slice)+1;
break;
case XML_SECOFFSET:
ds->dss_slices[*slice].ds_offset = (u_long) v;
break;
case XML_SECLENGTH:
ds->dss_slices[*slice].ds_size = (u_long) v;
break;
case XML_TYPE:
ds->dss_slices[*slice].ds_type = (int) v;
break;
}
return 0;
}
/*
* Callback to collect disk-related data.
*/
static int
assignToDisk(void *arg, XMLToken t, u_int *slice, u_int64_t v)
{
struct disklabel *dl = (struct disklabel *) arg;
switch ((int) t) {
case XML_FWHEADS:
dl->d_ntracks = (u_int32_t) v;
case XML_FWSECTORS:
dl->d_nsectors = (u_int32_t) v;
break;
case XML_MEDIASIZE:
/* store this temporarily; it gets moved later */
dl->d_secpercyl = v >> 32;
dl->d_secperunit = v & 0xffffffff;
break;
case XML_SECTORSIZE:
dl->d_secsize = (u_int32_t) v;
break;
}
return 0;
}
/*
* Callback to collect partition-related data.
*/
static int
assignToPartition(void *arg, XMLToken t, u_int *part, u_int64_t v)
{
struct disklabel *dl = (struct disklabel *) arg;
switch ((int) t) {
case XML_INDEX:
*part = (u_int) v;
if (*part >= MAXPARTITIONS) {
DPRINTX(("assignToPartition: invalid partition index %u > max %u",
*part, MAXPARTITIONS));
return EINVAL;
}
if (*part >= dl->d_npartitions)
dl->d_npartitions = (*part)+1;
break;
case XML_SECOFFSET:
dl->d_partitions[*part].p_offset = (u_int32_t) v;
break;
case XML_SECLENGTH:
dl->d_partitions[*part].p_size = (u_int32_t) v;
break;
case XML_TYPE:
dl->d_partitions[*part].p_fstype = (u_int8_t) v;
break;
}
return 0;
}
#undef N
#endif /*HAVE_GEOM*/
struct disk *
Int_Open_Disk(const char *name, u_long size)
{
int i;
int fd = -1;
struct diskslices ds;
struct disklabel dl;
char device[64];
struct disk *d;
#ifdef PC98
unsigned char *p;
#else
struct dos_partition *dp;
void *p;
#endif
#ifdef HAVE_GEOM
char *confxml = NULL;
size_t xmlsize;
u_int64_t mediasize;
int error;
#else
u_long sector_size;
char *buf;
#endif /*HAVE_GEOM*/
strlcpy(device, _PATH_DEV, sizeof(device));
strlcat(device, name, sizeof(device));
d = (struct disk *)malloc(sizeof *d);
if(!d) return NULL;
memset(d, 0, sizeof *d);
fd = open(device, O_RDONLY);
if (fd < 0) {
DPRINT(("open(%s) failed", device));
goto bad;
}
memset(&dl, 0, sizeof dl);
memset(&ds, 0, sizeof ds);
#ifdef HAVE_GEOM
/*
* Read and hack-parse the XML that provides the info we need.
*/
error = sysctlbyname("kern.geom.confxml", NULL, &xmlsize, NULL, 0);
if (error) {
warn("kern.geom.confxml sysctl not available, giving up!");
goto bad;
}
confxml = (char *) malloc(xmlsize+1);
if (confxml == NULL) {
DPRINT(("cannot malloc memory for confxml"));
goto bad;
}
error = sysctlbyname("kern.geom.confxml", confxml, &xmlsize, NULL, 0);
if (error) {
DPRINT(("error reading kern.geom.confxml from the system"));
goto bad;
}
confxml[xmlsize] = '\0'; /* in case kernel bug is still there */
if (xmlparse(confxml, "MBR", name, assignToSlice, &ds) != 0) {
DPRINTX(("Error parsing MBR geometry specification."));
goto bad;
}
if (xmlparse(confxml, "DISK", name, assignToDisk, &dl) != 0) {
DPRINTX(("Error parsing DISK geometry specification."));
goto bad;
}
if (dl.d_nsectors == 0) {
DPRINTX(("No (zero) sector information in DISK geometry"));
goto bad;
}
if (dl.d_ntracks == 0) {
DPRINTX(("No (zero) track information in DISK geometry"));
goto bad;
}
if (dl.d_secsize == 0) {
DPRINTX(("No (zero) sector size information in DISK geometry"));
goto bad;
}
if (dl.d_secpercyl == 0 && dl.d_secperunit == 0) {
DPRINTX(("No (zero) media size information in DISK geometry"));
goto bad;
}
/*
* Now patch up disklabel and diskslice.
*/
d->sector_size = dl.d_secsize;
/* NB: media size was stashed in two parts while parsing */
mediasize = (((u_int64_t) dl.d_secpercyl) << 32) + dl.d_secperunit;
dl.d_secpercyl = 0;
dl.d_secperunit = 0;
size = mediasize / d->sector_size;
dl.d_ncylinders = size / (dl.d_ntracks * dl.d_nsectors);
/* "whole disk" slice maintained for compatibility */
ds.dss_slices[WHOLE_DISK_SLICE].ds_size = size;
#else /* !HAVE_GEOM */
if (ioctl(fd, DIOCGDINFO, &dl) < 0) {
DPRINT(("DIOCGDINFO(%s) failed", device));
goto bad;
}
i = ioctl(fd, DIOCGSLICEINFO, &ds);
if (i < 0) {
DPRINT(("DIOCGSLICEINFO(%s) failed", device));
goto bad;
}
#ifdef DEBUG
for(i = 0; i < ds.dss_nslices; i++)
if(ds.dss_slices[i].ds_openmask)
printf(" open(%d)=0x%2x",
i, ds.dss_slices[i].ds_openmask);
printf("\n");
#endif
/* XXX --- ds.dss_slice[WHOLE_DISK_SLICE].ds.size of MO disk is wrong!!! */
#ifdef PC98
if (!size)
size = dl.d_ncylinders * dl.d_ntracks * dl.d_nsectors;
#else
if (!size)
size = ds.dss_slices[WHOLE_DISK_SLICE].ds_size;
#endif
/* determine media sector size */
if ((buf = malloc(MAX_SEC_SIZE)) == NULL)
return NULL;
for (sector_size = MIN_SEC_SIZE; sector_size <= MAX_SEC_SIZE; sector_size *= 2) {
if (read(fd, buf, sector_size) == sector_size) {
d->sector_size = sector_size;
break;
}
}
free (buf);
if (sector_size > MAX_SEC_SIZE) {
DPRINT(("Int_Open_Disk: could not determine sector size, "
"calculated %u, max %u\n", sector_size, MAX_SEC_SIZE));
/* could not determine sector size */
goto bad;
}
#endif /*HAVE_GEOM*/
#ifdef PC98
p = (unsigned char*)read_block(fd, 1, d->sector_size);
#else
p = read_block(fd, 0, d->sector_size);
dp = (struct dos_partition*)(p + DOSPARTOFF);
for (i = 0; i < NDOSPART; i++) {
if (Read_Int32(&dp->dp_start) >= size)
continue;
if (Read_Int32(&dp->dp_start) + Read_Int32(&dp->dp_size) >= size)
continue;
if (!Read_Int32(&dp->dp_size))
continue;
}
free(p);
#endif
d->bios_sect = dl.d_nsectors;
d->bios_hd = dl.d_ntracks;
d->name = strdup(name);
if (dl.d_ntracks && dl.d_nsectors)
d->bios_cyl = size / (dl.d_ntracks * dl.d_nsectors);
if (Add_Chunk(d, 0, size, name, whole, 0, 0, "-"))
DPRINT(("Failed to add 'whole' chunk"));
#ifdef __i386__
#ifdef PC98
/* XXX -- Quick Hack!
* Check MS-DOS MO
*/
if ((*p == 0xf0 || *p == 0xf8) &&
(*(p+1) == 0xff) &&
(*(p+2) == 0xff)) {
Add_Chunk(d, 0, size, name, fat, 0xa0a0, 0, name);
free(p);
goto pc98_mo_done;
}
free(p);
#endif /* PC98 */
for(i=BASE_SLICE;i<ds.dss_nslices;i++) {
char sname[20];
char pname[20];
chunk_e ce;
u_long flags=0;
int subtype=0;
int j;
if (! ds.dss_slices[i].ds_size)
continue;
snprintf(sname, sizeof(sname), "%ss%d", name, i - 1);
#ifdef PC98
subtype = ds.dss_slices[i].ds_type |
ds.dss_slices[i].ds_subtype << 8;
switch (ds.dss_slices[i].ds_type & 0x7f) {
case 0x14:
ce = freebsd;
break;
case 0x20:
case 0x21:
case 0x22:
case 0x23:
case 0x24:
ce = fat;
break;
#else /* IBM-PC */
subtype = ds.dss_slices[i].ds_type;
switch (ds.dss_slices[i].ds_type) {
case 0xa5:
ce = freebsd;
break;
case 0x1:
case 0x6:
case 0x4:
case 0xb:
case 0xc:
case 0xe:
ce = fat;
break;
case DOSPTYP_EXTENDED:
case 0xf:
ce = extended;
break;
#endif
default:
ce = unknown;
break;
}
#ifdef PC98
if (Add_Chunk(d, ds.dss_slices[i].ds_offset,
ds.dss_slices[i].ds_size, sname, ce, subtype, flags,
ds.dss_slices[i].ds_name))
#else
if (Add_Chunk(d, ds.dss_slices[i].ds_offset,
ds.dss_slices[i].ds_size, sname, ce, subtype, flags, ""))
#endif
DPRINT(("failed to add chunk for slice %d", i - 1));
#ifdef PC98
if ((ds.dss_slices[i].ds_type & 0x7f) != 0x14)
#else
if (ds.dss_slices[i].ds_type != 0xa5)
#endif
continue;
#ifdef HAVE_GEOM
if (xmlparse(confxml, "BSD", sname, assignToPartition, &dl) != 0) {
DPRINTX(("Error parsing MBR geometry specification."));
goto bad;
}
#else
{
struct disklabel dl;
int k;
strlcpy(pname, _PATH_DEV, sizeof(pname));
strlcat(pname, sname, sizeof(pname));
j = open(pname, O_RDONLY);
if (j < 0) {
DPRINT(("open(%s)", pname));
continue;
}
k = ioctl(j, DIOCGDINFO, &dl);
if (k < 0) {
DPRINT(("ioctl(%s, DIOCGDINFO)", pname));
close(j);
continue;
}
close(j);
}
#endif /*HAVE_GEOM*/
for(j = 0; j <= dl.d_npartitions; j++) {
if (j == RAW_PART)
continue;
if (j == 3)
continue;
if (j == dl.d_npartitions) {
j = 3;
dl.d_npartitions = 0;
}
if (!dl.d_partitions[j].p_size)
continue;
if (dl.d_partitions[j].p_size +
dl.d_partitions[j].p_offset >
ds.dss_slices[i].ds_size)
continue;
snprintf(pname, sizeof(pname), "%s%c", sname, j + 'a');
if (Add_Chunk(d,
dl.d_partitions[j].p_offset +
ds.dss_slices[i].ds_offset,
dl.d_partitions[j].p_size,
pname,part,
dl.d_partitions[j].p_fstype,
#ifdef PC98
0,
ds.dss_slices[i].ds_name) && j != 3)
#else
0, "") && j != 3)
#endif
DPRINT((
"Failed to add chunk for partition %c [%lu,%lu]",
j + 'a', dl.d_partitions[j].p_offset,
dl.d_partitions[j].p_size));
}
}
#endif /* __i386__ */
#ifdef __alpha__
{
struct disklabel dl;
char pname[20];
int j,k;
strlcpy(pname, _PATH_DEV, sizeof(pname));
strlcat(pname, name, sizeof(pname));
j = open(pname, O_RDONLY);
if (j < 0) {
DPRINT(("open(%s)", pname));
goto nolabel;
}
k = ioctl(j, DIOCGDINFO, &dl);
if (k < 0) {
DPRINT(("ioctl(%s, DIOCGDINFO)", pname));
close(j);
goto nolabel;
}
close(j);
All_FreeBSD(d, 1);
for(j = 0; j <= dl.d_npartitions; j++) {
if (j == RAW_PART)
continue;
if (j == 3)
continue;
if (j == dl.d_npartitions) {
j = 3;
dl.d_npartitions = 0;
}
if (!dl.d_partitions[j].p_size)
continue;
if (dl.d_partitions[j].p_size +
dl.d_partitions[j].p_offset >
ds.dss_slices[WHOLE_DISK_SLICE].ds_size)
continue;
snprintf(pname, sizeof(pname), "%s%c", name, j + 'a');
if (Add_Chunk(d,
dl.d_partitions[j].p_offset,
dl.d_partitions[j].p_size,
pname,part,
dl.d_partitions[j].p_fstype,
0, "") && j != 3)
DPRINT((
"Failed to add chunk for partition %c [%lu,%lu]",
j + 'a', dl.d_partitions[j].p_offset,
dl.d_partitions[j].p_size));
}
nolabel:;
}
#endif /* __alpha__ */
#ifdef PC98
pc98_mo_done:
#endif
close(fd);
Fixup_Names(d);
return d;
bad:
#ifdef HAVE_GEOM
if (confxml != NULL)
free(confxml);
#endif
if (fd >= 0)
close(fd);
return NULL;
}
void
Debug_Disk(struct disk *d)
{
printf("Debug_Disk(%s)", d->name);
#if 0
printf(" real_geom=%lu/%lu/%lu", d->real_cyl, d->real_hd, d->real_sect);
#endif
printf(" bios_geom=%lu/%lu/%lu = %lu\n",
d->bios_cyl, d->bios_hd, d->bios_sect,
d->bios_cyl * d->bios_hd * d->bios_sect);
#if defined(PC98)
printf(" boot1=%p, boot2=%p, bootipl=%p, bootmenu=%p\n",
d->boot1, d->boot2, d->bootipl, d->bootmenu);
#elif defined(__i386__)
printf(" boot1=%p, boot2=%p, bootmgr=%p\n",
d->boot1, d->boot2, d->bootmgr);
#elif defined(__alpha__)
printf(" boot1=%p, bootmgr=%p\n",
d->boot1, d->bootmgr);
#endif
Debug_Chunk(d->chunks);
}
void
Free_Disk(struct disk *d)
{
if(d->chunks) Free_Chunk(d->chunks);
if(d->name) free(d->name);
#ifdef PC98
if(d->bootipl) free(d->bootipl);
if(d->bootmenu) free(d->bootmenu);
#else
if(d->bootmgr) free(d->bootmgr);
#endif
if(d->boot1) free(d->boot1);
#if defined(__i386__)
if(d->boot2) free(d->boot2);
#endif
free(d);
}
#if 0
void
Collapse_Disk(struct disk *d)
{
while(Collapse_Chunk(d, d->chunks))
;
}
#endif
static int
qstrcmp(const void* a, const void* b)
{
char *str1 = *(char**)a;
char *str2 = *(char**)b;
return strcmp(str1, str2);
}
char **
Disk_Names()
{
int disk_cnt;
static char **disks;
int error;
size_t listsize;
char *disklist;
error = sysctlbyname("kern.disks", NULL, &listsize, NULL, 0);
if (error) {
warn("kern.disks sysctl not available");
return NULL;
}
disks = malloc(sizeof *disks * (1 + MAX_NO_DISKS));
if (disks == NULL)
return NULL;
disklist = (char *)malloc(listsize + 1);
if (disklist == NULL) {
free(disks);
return NULL;
}
memset(disks,0,sizeof *disks * (1 + MAX_NO_DISKS));
memset(disklist, 0, listsize + 1);
error = sysctlbyname("kern.disks", disklist, &listsize, NULL, 0);
if (error) {
free(disklist);
free(disks);
return NULL;
}
for (disk_cnt = 0; disk_cnt < MAX_NO_DISKS; disk_cnt++) {
disks[disk_cnt] = strsep(&disklist, " ");
if (disks[disk_cnt] == NULL)
break;
}
qsort(disks, disk_cnt, sizeof(char*), qstrcmp);
return disks;
}
#ifdef PC98
void
Set_Boot_Mgr(struct disk *d, const u_char *bootipl, const size_t bootipl_size,
const u_char *bootmenu, const size_t bootmenu_size)
#else
void
Set_Boot_Mgr(struct disk *d, const u_char *b, const size_t s)
#endif
{
#ifdef PC98
if (bootipl_size % d->sector_size != 0)
return;
if (d->bootipl)
free(d->bootipl);
if (!bootipl) {
d->bootipl = NULL;
} else {
d->bootipl_size = bootipl_size;
d->bootipl = malloc(bootipl_size);
if(!d->bootipl) return;
memcpy(d->bootipl, bootipl, bootipl_size);
}
if (bootmenu_size % d->sector_size != 0)
return;
if (d->bootmenu)
free(d->bootmenu);
if (!bootmenu) {
d->bootmenu = NULL;
} else {
d->bootmenu_size = bootmenu_size;
d->bootmenu = malloc(bootmenu_size);
if(!d->bootmenu) return;
memcpy(d->bootmenu, bootmenu, bootmenu_size);
}
#else
if (s % d->sector_size != 0)
return;
if (d->bootmgr)
free(d->bootmgr);
if (!b) {
d->bootmgr = NULL;
} else {
d->bootmgr_size = s;
d->bootmgr = malloc(s);
if(!d->bootmgr) return;
memcpy(d->bootmgr, b, s);
}
#endif
}
int
Set_Boot_Blocks(struct disk *d, const u_char *b1, const u_char *b2)
{
#if defined(__i386__)
if (d->boot1) free(d->boot1);
d->boot1 = malloc(512);
if(!d->boot1) return -1;
memcpy(d->boot1, b1, 512);
if (d->boot2) free(d->boot2);
d->boot2 = malloc(15 * 512);
if(!d->boot2) return -1;
memcpy(d->boot2, b2, 15 * 512);
#elif defined(__alpha__)
if (d->boot1) free(d->boot1);
d->boot1 = malloc(15 * 512);
if(!d->boot1) return -1;
memcpy(d->boot1, b1, 15 * 512);
#endif
return 0;
}
const char *
slice_type_name( int type, int subtype )
{
switch (type) {
case 0: return "whole";
#ifndef PC98
case 1: switch (subtype) {
case 1: return "fat (12-bit)";
case 2: return "XENIX /";
case 3: return "XENIX /usr";
case 4: return "fat (16-bit,<=32Mb)";
case 5: return "extended DOS";
case 6: return "fat (16-bit,>32Mb)";
case 7: return "NTFS/HPFS/QNX";
case 8: return "AIX bootable";
case 9: return "AIX data";
case 10: return "OS/2 bootmgr";
case 11: return "fat (32-bit)";
case 12: return "fat (32-bit,LBA)";
case 14: return "fat (16-bit,>32Mb,LBA)";
case 15: return "extended DOS, LBA";
case 18: return "Compaq Diagnostic";
case 84: return "OnTrack diskmgr";
case 100: return "Netware 2.x";
case 101: return "Netware 3.x";
case 115: return "SCO UnixWare";
case 128: return "Minix 1.1";
case 129: return "Minix 1.5";
case 130: return "linux_swap";
case 131: return "ext2fs";
case 166: return "OpenBSD FFS"; /* 0xA6 */
case 169: return "NetBSD FFS"; /* 0xA9 */
case 182: return "OpenBSD"; /* dedicated */
case 183: return "bsd/os";
case 184: return "bsd/os swap";
case 238: return "EFI GPT";
case 239: return "EFI Sys. Part.";
default: return "unknown";
}
#endif
case 2: return "fat";
case 3: switch (subtype) {
#ifdef PC98
case 0xc494: return "freebsd";
#else
case 165: return "freebsd";
#endif
default: return "unknown";
}
#ifndef PC98
case 4: return "extended";
case 5: return "part";
case 6: return "unused";
#endif
default: return "unknown";
}
}