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|
/* $OpenBSD: part.c,v 1.107 2021/09/13 15:07:51 krw Exp $ */
/*
* Copyright (c) 1997 Tobias Weingartner
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/disklabel.h>
#include <err.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <uuid.h>
#include "part.h"
#include "disk.h"
#include "misc.h"
int check_chs(const struct prt *);
const char *ascii_id(const int);
struct mbr_type {
int mt_type;
char mt_sname[14];
};
const struct mbr_type mbr_types[] = {
{ 0x00, "unused " }, /* unused */
{ 0x01, "DOS FAT-12 " }, /* Primary DOS with 12 bit FAT */
{ 0x02, "XENIX / " }, /* XENIX / filesystem */
{ 0x03, "XENIX /usr " }, /* XENIX /usr filesystem */
{ 0x04, "DOS FAT-16 " }, /* Primary DOS with 16 bit FAT */
{ 0x05, "Extended DOS" }, /* Extended DOS */
{ 0x06, "DOS > 32MB " }, /* Primary 'big' DOS (> 32MB) */
{ 0x07, "NTFS " }, /* NTFS */
{ 0x08, "AIX fs " }, /* AIX filesystem */
{ 0x09, "AIX/Coherent" }, /* AIX boot partition or Coherent */
{ 0x0A, "OS/2 Bootmgr" }, /* OS/2 Boot Manager or OPUS */
{ 0x0B, "Win95 FAT-32" }, /* Primary Win95 w/ 32-bit FAT */
{ 0x0C, "Win95 FAT32L" }, /* Primary Win95 w/ 32-bit FAT LBA-mapped */
{ 0x0E, "DOS FAT-16 " }, /* Primary DOS w/ 16-bit FAT, CHS-mapped */
{ 0x0F, "Extended LBA" }, /* Extended DOS LBA-mapped */
{ 0x10, "OPUS " }, /* OPUS */
{ 0x11, "OS/2 hidden " }, /* OS/2 BM: hidden DOS 12-bit FAT */
{ 0x12, "Compaq Diag." }, /* Compaq Diagnostics */
{ 0x14, "OS/2 hidden " }, /* OS/2 BM: hidden DOS 16-bit FAT <32M or Novell DOS 7.0 bug */
{ 0x16, "OS/2 hidden " }, /* OS/2 BM: hidden DOS 16-bit FAT >=32M */
{ 0x17, "OS/2 hidden " }, /* OS/2 BM: hidden IFS */
{ 0x18, "AST swap " }, /* AST Windows swapfile */
{ 0x19, "Willowtech " }, /* Willowtech Photon coS */
{ 0x1C, "ThinkPad Rec" }, /* IBM ThinkPad recovery partition */
{ 0x20, "Willowsoft " }, /* Willowsoft OFS1 */
{ 0x24, "NEC DOS " }, /* NEC DOS */
{ 0x27, "Win Recovery" }, /* Windows hidden Recovery Partition */
{ 0x38, "Theos " }, /* Theos */
{ 0x39, "Plan 9 " }, /* Plan 9 */
{ 0x40, "VENIX 286 " }, /* VENIX 286 or LynxOS */
{ 0x41, "Lin/Minux DR" }, /* Linux/MINIX (sharing disk with DRDOS) or Personal RISC boot */
{ 0x42, "LinuxSwap DR" }, /* SFS or Linux swap (sharing disk with DRDOS) */
{ 0x43, "Linux DR " }, /* Linux native (sharing disk with DRDOS) */
{ 0x4D, "QNX 4.2 Pri " }, /* QNX 4.2 Primary */
{ 0x4E, "QNX 4.2 Sec " }, /* QNX 4.2 Secondary */
{ 0x4F, "QNX 4.2 Ter " }, /* QNX 4.2 Tertiary */
{ 0x50, "DM " }, /* DM (disk manager) */
{ 0x51, "DM " }, /* DM6 Aux1 (or Novell) */
{ 0x52, "CP/M or SysV" }, /* CP/M or Microport SysV/AT */
{ 0x53, "DM " }, /* DM6 Aux3 */
{ 0x54, "Ontrack " }, /* Ontrack */
{ 0x55, "EZ-Drive " }, /* EZ-Drive (disk manager) */
{ 0x56, "Golden Bow " }, /* Golden Bow (disk manager) */
{ 0x5C, "Priam " }, /* Priam Edisk (disk manager) */
{ 0x61, "SpeedStor " }, /* SpeedStor */
{ 0x63, "ISC, HURD, *" }, /* ISC, System V/386, GNU HURD or Mach */
{ 0x64, "NetWare 2.xx" }, /* Novell NetWare 2.xx */
{ 0x65, "NetWare 3.xx" }, /* Novell NetWare 3.xx */
{ 0x66, "NetWare 386 " }, /* Novell 386 NetWare */
{ 0x67, "Novell " }, /* Novell */
{ 0x68, "Novell " }, /* Novell */
{ 0x69, "Novell " }, /* Novell */
{ 0x70, "DiskSecure " }, /* DiskSecure Multi-Boot */
{ 0x75, "PCIX " }, /* PCIX */
{ 0x80, "Minix (old) " }, /* Minix 1.1 ... 1.4a */
{ 0x81, "Minix (new) " }, /* Minix 1.4b ... 1.5.10 */
{ 0x82, "Linux swap " }, /* Linux swap */
{ 0x83, "Linux files*" }, /* Linux filesystem */
{ 0x84, "OS/2 hidden " }, /* OS/2 hidden C: drive */
{ 0x85, "Linux ext. " }, /* Linux extended */
{ 0x86, "NT FAT VS " }, /* NT FAT volume set */
{ 0x87, "NTFS VS " }, /* NTFS volume set or HPFS mirrored */
{ 0x8E, "Linux LVM " }, /* Linux LVM */
{ 0x93, "Amoeba FS " }, /* Amoeba filesystem */
{ 0x94, "Amoeba BBT " }, /* Amoeba bad block table */
{ 0x99, "Mylex " }, /* Mylex EISA SCSI */
{ 0x9F, "BSDI " }, /* BSDI BSD/OS */
{ 0xA0, "NotebookSave" }, /* Phoenix NoteBIOS save-to-disk */
{ 0xA5, "FreeBSD " }, /* FreeBSD */
{ 0xA6, "OpenBSD " }, /* OpenBSD */
{ 0xA7, "NEXTSTEP " }, /* NEXTSTEP */
{ 0xA8, "MacOS X " }, /* MacOS X main partition */
{ 0xA9, "NetBSD " }, /* NetBSD */
{ 0xAB, "MacOS X boot" }, /* MacOS X boot partition */
{ 0xAF, "MacOS X HFS+" }, /* MacOS X HFS+ partition */
{ 0xB7, "BSDI filesy*" }, /* BSDI BSD/386 filesystem */
{ 0xB8, "BSDI swap " }, /* BSDI BSD/386 swap */
{ 0xBF, "Solaris " }, /* Solaris */
{ 0xC0, "CTOS " }, /* CTOS */
{ 0xC1, "DRDOSs FAT12" }, /* DRDOS/sec (FAT-12) */
{ 0xC4, "DRDOSs < 32M" }, /* DRDOS/sec (FAT-16, < 32M) */
{ 0xC6, "DRDOSs >=32M" }, /* DRDOS/sec (FAT-16, >= 32M) */
{ 0xC7, "HPFS Disbled" }, /* Syrinx (Cyrnix?) or HPFS disabled */
{ 0xDB, "CPM/C.DOS/C*" }, /* Concurrent CPM or C.DOS or CTOS */
{ 0xDE, "Dell Maint " }, /* Dell maintenance partition */
{ 0xE1, "SpeedStor " }, /* DOS access or SpeedStor 12-bit FAT extended partition */
{ 0xE3, "SpeedStor " }, /* DOS R/O or SpeedStor or Storage Dimensions */
{ 0xE4, "SpeedStor " }, /* SpeedStor 16-bit FAT extended partition < 1024 cyl. */
{ 0xEB, "BeOS/i386 " }, /* BeOS for Intel */
{ 0xEE, "EFI GPT " }, /* EFI Protective Partition */
{ 0xEF, "EFI Sys " }, /* EFI System Partition */
{ 0xF1, "SpeedStor " }, /* SpeedStor or Storage Dimensions */
{ 0xF2, "DOS 3.3+ Sec" }, /* DOS 3.3+ Secondary */
{ 0xF4, "SpeedStor " }, /* SpeedStor >1024 cyl. or LANstep or IBM PS/2 IML */
{ 0xFF, "Xenix BBT " }, /* Xenix Bad Block Table */
};
struct gpt_type {
int gt_type;
int gt_protected;
char gt_sname[14];
char gt_guid[UUID_STR_LEN + 1];
};
const struct gpt_type gpt_types[] = {
{ 0x00, 0, "unused ", "00000000-0000-0000-0000-000000000000" },
{ 0x01, 0, "FAT12 ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x04, 0, "FAT16S ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x06, 0, "FAT16B ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x07, 0, "NTFS ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x0B, 0, "FAT32 ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x0C, 0, "FAT32L ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x0D, 0, "BIOS Boot ", "21686148-6449-6e6f-744e-656564454649" },
{ 0x0E, 0, "FAT16L ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x11, 0, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x14, 0, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x16, 0, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x17, 0, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x1C, 0, "ThinkPad Rec", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
{ 0x27, 0, "Win Recovery", "de94bba4-06d1-4d40-a16a-bfd50179d6ac" },
{ 0x42, 0, "LinuxSwap DR", "af9b60a0-1431-4f62-bc68-3311714a69ad" },
{ 0x7f, 0, "ChromeKernel", "fe3a2a5d-4f32-41a7-b725-accc3285a309" },
{ 0x82, 0, "Linux swap ", "0657fd6d-a4ab-43c4-84e5-0933c84b4f4f" },
{ 0x83, 0, "Linux files*", "0fc63daf-8483-4772-8e79-3d69d8477de4" },
{ 0x8E, 0, "Linux LVM ", "e6d6d379-f507-44c2-a23c-238f2a3df928" },
{ 0xA5, 0, "FreeBSD ", "516e7cb4-6ecf-11d6-8ff8-00022d09712b" },
{ 0xA6, 0, "OpenBSD ", "824cc7a0-36a8-11e3-890a-952519ad3f61" },
{ 0xA8, 0, "MacOS X ", "55465300-0000-11aa-aa11-00306543ecac" },
{ 0xA9, 0, "NetBSD ", "516e7cb4-6ecf-11d6-8ff8-00022d09712b" },
{ 0xAB, 0, "MacOS X boot", "426f6f74-0000-11aa-aa11-00306543ecac" },
{ 0xAF, 0, "MacOS X HFS+", "48465300-0000-11aa-aa11-00306543ecac" },
{ 0xB0, 1, "APFS ", "7c3457ef-0000-11aa-aa11-00306543ecac" },
{ 0xB1, 1, "APFS ISC ", "69646961-6700-11aa-aa11-00306543ecac" },
{ 0xB2, 1, "APFS Recovry", "52637672-7900-11aa-aa11-00306543ecac" },
{ 0xB3, 1, "HiFive FSBL ", "5b193300-fc78-40cd-8002-e86c45580b47" },
{ 0xB4, 1, "HiFive BBL ", "2e54b353-1271-4842-806f-e436d6af6985" },
{ 0xBF, 0, "Solaris ", "6a85cf4d-1dd2-11b2-99a6-080020736631" },
{ 0xEB, 0, "BeOS/i386 ", "42465331-3ba3-10f1-802a-4861696b7521" },
{ 0xEF, 0, "EFI Sys ", "c12a7328-f81f-11d2-ba4b-00a0c93ec93b" },
};
int
PRT_protected_guid(const struct uuid *uuid)
{
char *str = NULL;
int rslt = 0;
unsigned int i;
uint32_t status;
uuid_to_string(uuid, &str, &status);
if (status != uuid_s_ok) {
rslt = -1;
goto done;
}
for(i = 0; i < nitems(gpt_types); i++) {
if (strncmp(str, gpt_types[i].gt_guid, UUID_STR_LEN) == 0) {
if (gpt_types[i].gt_protected)
rslt = -1;
break;
}
}
done:
free(str);
return rslt;
}
void
PRT_print_mbrtypes(void)
{
unsigned int i, idrows;
idrows = (nitems(mbr_types) + 3) / 4;
printf("Choose from the following Partition id values:\n");
for (i = 0; i < idrows; i++) {
printf("%02X %s %02X %s %02X %s",
mbr_types[i].mt_type, mbr_types[i].mt_sname,
mbr_types[i+idrows].mt_type, mbr_types[i+idrows].mt_sname,
mbr_types[i+idrows*2].mt_type, mbr_types[i+idrows*2].mt_sname);
if ((i+idrows*3) < nitems(mbr_types)) {
printf(" %02X %s\n",
mbr_types[i+idrows*3].mt_type,
mbr_types[i+idrows*3].mt_sname);
} else
printf( "\n" );
}
}
void
PRT_print_gpttypes(void)
{
unsigned int i, idrows;
idrows = (nitems(gpt_types) + 3) / 4;
printf("Choose from the following Partition id values:\n");
for (i = 0; i < idrows; i++) {
printf("%02X %s %02X %s %02X %s",
gpt_types[i].gt_type, gpt_types[i].gt_sname,
gpt_types[i+idrows].gt_type, gpt_types[i+idrows].gt_sname,
gpt_types[i+idrows*2].gt_type, gpt_types[i+idrows*2].gt_sname);
if ((i+idrows*3) < nitems(gpt_types)) {
printf(" %02X %s\n",
gpt_types[i+idrows*3].gt_type,
gpt_types[i+idrows*3].gt_sname);
} else
printf( "\n" );
}
}
const char *
ascii_id(const int id)
{
static char unknown[] = "<Unknown ID>";
int i;
for (i = 0; i < nitems(mbr_types); i++) {
if (mbr_types[i].mt_type == id)
return mbr_types[i].mt_sname;
}
return unknown;
}
void
PRT_parse(const struct dos_partition *dp, const uint64_t lba_self,
const uint64_t lba_firstembr, struct prt *prt)
{
off_t off;
uint32_t t;
prt->prt_flag = dp->dp_flag;
prt->prt_shead = dp->dp_shd;
prt->prt_ssect = (dp->dp_ssect) & 0x3F;
prt->prt_scyl = ((dp->dp_ssect << 2) & 0xFF00) | dp->dp_scyl;
prt->prt_id = dp->dp_typ;
prt->prt_ehead = dp->dp_ehd;
prt->prt_esect = (dp->dp_esect) & 0x3F;
prt->prt_ecyl = ((dp->dp_esect << 2) & 0xFF00) | dp->dp_ecyl;
if ((prt->prt_id == DOSPTYP_EXTEND) || (prt->prt_id == DOSPTYP_EXTENDL))
off = lba_firstembr;
else
off = lba_self;
#if 0 /* XXX */
prt->prt_bs = letoh32(dp->dp_start) + off;
prt->prt_ns = letoh32(dp->dp_size);
if (prt->prt_id == DOSPTYP_EFI && partn == UINT32_MAX)
prt->prt_ns = DL_GETDSIZE(&dl) - prt->prt_bs;
#else
memcpy(&t, &dp->dp_start, sizeof(uint32_t));
prt->prt_bs = letoh32(t) + off;
memcpy(&t, &dp->dp_size, sizeof(uint32_t));
prt->prt_ns = letoh32(t);
if (prt->prt_id == DOSPTYP_EFI && prt->prt_ns == UINT32_MAX)
prt->prt_ns = DL_GETDSIZE(&dl) - prt->prt_bs;
#endif
PRT_fix_CHS(prt);
}
int
check_chs(const struct prt *prt)
{
if ( (prt->prt_shead > 255) ||
(prt->prt_ssect >63) ||
(prt->prt_scyl > 1023) ||
(prt->prt_ehead >255) ||
(prt->prt_esect >63) ||
(prt->prt_ecyl > 1023) )
{
return -1;
}
return 0;
}
void
PRT_make(const struct prt *prt, const uint64_t lba_self, const uint64_t lba_firstembr,
struct dos_partition *dp)
{
uint64_t off, t;
uint32_t ecyl, scyl;
scyl = (prt->prt_scyl > 1023) ? 1023 : prt->prt_scyl;
ecyl = (prt->prt_ecyl > 1023) ? 1023 : prt->prt_ecyl;
if ((prt->prt_id == DOSPTYP_EXTEND) || (prt->prt_id == DOSPTYP_EXTENDL))
off = lba_firstembr;
else
off = lba_self;
if (check_chs(prt) == 0) {
dp->dp_shd = prt->prt_shead & 0xFF;
dp->dp_ssect = (prt->prt_ssect & 0x3F) | ((scyl & 0x300) >> 2);
dp->dp_scyl = scyl & 0xFF;
dp->dp_ehd = prt->prt_ehead & 0xFF;
dp->dp_esect = (prt->prt_esect & 0x3F) | ((ecyl & 0x300) >> 2);
dp->dp_ecyl = ecyl & 0xFF;
} else {
memset(dp, 0xFF, sizeof(*dp));
}
dp->dp_flag = prt->prt_flag & 0xFF;
dp->dp_typ = prt->prt_id & 0xFF;
t = htole64(prt->prt_bs - off);
memcpy(&dp->dp_start, &t, sizeof(uint32_t));
if (prt->prt_id == DOSPTYP_EFI && (prt->prt_bs + prt->prt_ns) >
DL_GETDSIZE(&dl))
t = htole64(UINT32_MAX);
else
t = htole64(prt->prt_ns);
memcpy(&dp->dp_size, &t, sizeof(uint32_t));
}
void
PRT_print(const int num, const struct prt *prt, const char *units)
{
const struct unit_type *ut;
double size;
if (prt == NULL) {
printf(" Starting Ending "
" LBA Info:\n");
printf(" #: id C H S - C H S "
"[ start: size ]\n");
printf("---------------------------------------"
"----------------------------------------\n");
} else {
size = units_size(units, prt->prt_ns, &ut);
printf("%c%1d: %.2X %6u %3u %3u - %6u %3u %3u "
"[%12llu:%12.0f%s] %s\n",
(prt->prt_flag == DOSACTIVE)?'*':' ',
num, prt->prt_id,
prt->prt_scyl, prt->prt_shead, prt->prt_ssect,
prt->prt_ecyl, prt->prt_ehead, prt->prt_esect,
prt->prt_bs, size, ut->ut_abbr, ascii_id(prt->prt_id));
}
}
void
PRT_fix_BN(struct prt *prt, const int pn)
{
uint32_t spt, tpc, spc;
uint32_t start = 0;
uint32_t end = 0;
if (prt->prt_id == DOSPTYP_UNUSED) {
memset(prt, 0, sizeof(*prt));
return;
}
spt = disk.dk_sectors;
tpc = disk.dk_heads;
spc = spt * tpc;
start += prt->prt_scyl * spc;
start += prt->prt_shead * spt;
start += prt->prt_ssect - 1;
end += prt->prt_ecyl * spc;
end += prt->prt_ehead * spt;
end += prt->prt_esect - 1;
/* XXX - Should handle this... */
if (start > end)
warnx("Start of partition #%d after end!", pn);
prt->prt_bs = start;
prt->prt_ns = (end - start) + 1;
}
void
PRT_fix_CHS(struct prt *prt)
{
uint32_t spt, tpc, spc;
uint32_t start, end, size;
uint32_t cyl, head, sect;
if (prt->prt_id == DOSPTYP_UNUSED || prt->prt_ns == 0) {
memset(prt, 0, sizeof(*prt));
return;
}
spt = disk.dk_sectors;
tpc = disk.dk_heads;
spc = spt * tpc;
start = prt->prt_bs;
size = prt->prt_ns;
end = (start + size) - 1;
cyl = (start / spc); start -= (cyl * spc);
head = (start / spt); start -= (head * spt);
sect = (start + 1);
prt->prt_scyl = cyl;
prt->prt_shead = head;
prt->prt_ssect = sect;
cyl = (end / spc); end -= (cyl * spc);
head = (end / spt); end -= (head * spt);
sect = (end + 1);
prt->prt_ecyl = cyl;
prt->prt_ehead = head;
prt->prt_esect = sect;
}
char *
PRT_uuid_to_typename(const struct uuid *uuid)
{
static char partition_type[UUID_STR_LEN + 1];
char *uuidstr = NULL;
int i, entries, status;
memset(partition_type, 0, sizeof(partition_type));
uuid_to_string(uuid, &uuidstr, &status);
if (status != uuid_s_ok)
goto done;
entries = nitems(gpt_types);
for (i = 0; i < entries; i++) {
if (memcmp(gpt_types[i].gt_guid, uuidstr,
sizeof(gpt_types[i].gt_guid)) == 0)
break;
}
if (i < entries)
strlcpy(partition_type, gpt_types[i].gt_sname,
sizeof(partition_type));
else
strlcpy(partition_type, uuidstr, sizeof(partition_type));
done:
free(uuidstr);
return partition_type;
}
int
PRT_uuid_to_type(const struct uuid *uuid)
{
char *uuidstr;
int i, status, type;
type = 0;
uuid_to_string(uuid, &uuidstr, &status);
if (status != uuid_s_ok)
goto done;
for (i = 0; i < nitems(gpt_types); i++) {
if (memcmp(gpt_types[i].gt_guid, uuidstr,
sizeof(gpt_types[i].gt_guid)) == 0) {
type = gpt_types[i].gt_type;
break;
}
}
done:
free(uuidstr);
return type;
}
struct uuid *
PRT_type_to_uuid(const int type)
{
static struct uuid guid;
int i, entries, status = uuid_s_ok;
memset(&guid, 0, sizeof(guid));
entries = nitems(gpt_types);
for (i = 0; i < entries; i++) {
if (gpt_types[i].gt_type == type)
break;
}
if (i < entries)
uuid_from_string(gpt_types[i].gt_guid, &guid, &status);
if (i == entries || status != uuid_s_ok)
uuid_from_string(gpt_types[0].gt_guid, &guid, &status);
return &guid;
}
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