/* $OpenBSD: part.c,v 1.76 2016/12/27 15:01:03 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 #include #include #include #include #include #include #include "disk.h" #include "misc.h" #include "part.h" int PRT_check_chs(struct prt *partn); static const struct part_type { int type; char sname[14]; char guid[37]; } part_types[] = { { 0x00, "unused ", "00000000-0000-0000-0000-000000000000" }, { 0x01, "DOS FAT-12 ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x02, "XENIX / "}, /* XENIX / filesystem */ { 0x03, "XENIX /usr "}, /* XENIX /usr filesystem */ { 0x04, "DOS FAT-16 ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x05, "Extended DOS"}, /* Extended DOS */ { 0x06, "DOS > 32MB ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x07, "NTFS ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 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", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x0C, "Win95 FAT32L", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x0E, "DOS FAT-16 ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x0F, "Extended LBA"}, /* Extended DOS LBA-mapped */ { 0x10, "OPUS "}, /* OPUS */ { 0x11, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x12, "Compaq Diag."}, /* Compaq Diagnostics */ { 0x14, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x16, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x17, "OS/2 hidden ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x18, "AST swap "}, /* AST Windows swapfile */ { 0x19, "Willowtech "}, /* Willowtech Photon coS */ { 0x1C, "ThinkPad Rec", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" }, { 0x24, "NEC DOS "}, /* NEC DOS */ { 0x27, "Win Recovery", "de94bba4-06d1-4d40-a16a-bfd50179d6ac" }, { 0x20, "Willowsoft "}, /* Willowsoft OFS1 */ { 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", "af9b60a0-1431-4f62-bc68-3311714a69ad" }, { 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 */ { 0x7f, "ChromeKernel", "fe3a2a5d-4f32-41a7-b725-accc3285a309" }, { 0x80, "Minix (old) "}, /* Minix 1.1 ... 1.4a */ { 0x81, "Minix (new) "}, /* Minix 1.4b ... 1.5.10 */ { 0x82, "Linux swap ", "0657fd6d-a4ab-43c4-84e5-0933c84b4f4f" }, { 0x83, "Linux files*", "0fc63daf-8483-4772-8e79-3d69d8477de4" }, { 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 ", "e6d6d379-f507-44c2-a23c-238f2a3df928" }, { 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 ", "516e7cb4-6ecf-11d6-8ff8-00022d09712b" }, { 0xA6, "OpenBSD ", "824cc7a0-36a8-11e3-890a-952519ad3f61" }, { 0xA7, "NEXTSTEP "}, /* NEXTSTEP */ { 0xA8, "MacOS X ", "55465300-0000-11aa-aa11-00306543ecac" }, { 0xA9, "NetBSD ", "516e7cb4-6ecf-11d6-8ff8-00022d09712b" }, { 0xAB, "MacOS X boot", "426f6f74-0000-11aa-aa11-00306543ecac" }, { 0xAF, "MacOS X HFS+", "48465300-0000-11aa-aa11-00306543ecac" }, { 0xB7, "BSDI filesy*"}, /* BSDI BSD/386 filesystem */ { 0xB8, "BSDI swap "}, /* BSDI BSD/386 swap */ { 0xBF, "Solaris ", "6a85cf4d-1dd2-11b2-99a6-080020736631" }, { 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 ", "42465331-3ba3-10f1-802a-4861696b7521" }, { 0xEE, "EFI GPT "}, /* EFI Protective Partition */ { 0xEF, "EFI Sys ", "c12a7328-f81f-11d2-ba4b-00a0c93ec93b" }, { 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 */ }; void PRT_printall(void) { int i, idrows; idrows = ((sizeof(part_types)/sizeof(struct part_type))+3)/4; printf("Choose from the following Partition id values:\n"); for (i = 0; i < idrows; i++) { printf("%02X %s %02X %s %02X %s", part_types[i].type, part_types[i].sname, part_types[i+idrows].type, part_types[i+idrows].sname, part_types[i+idrows*2].type, part_types[i+idrows*2].sname); if ((i+idrows*3) < (sizeof(part_types)/sizeof(struct part_type))) { printf(" %02X %s\n", part_types[i+idrows*3].type, part_types[i+idrows*3].sname); } else printf( "\n" ); } } const char * PRT_ascii_id(int id) { static char unknown[] = ""; int i; for (i = 0; i < sizeof(part_types)/sizeof(struct part_type); i++) { if (part_types[i].type == id) return (part_types[i].sname); } return (unknown); } void PRT_parse(struct dos_partition *prt, off_t offset, off_t reloff, struct prt *partn) { off_t off; u_int32_t t; partn->flag = prt->dp_flag; partn->shead = prt->dp_shd; partn->ssect = (prt->dp_ssect) & 0x3F; partn->scyl = ((prt->dp_ssect << 2) & 0xFF00) | prt->dp_scyl; partn->id = prt->dp_typ; partn->ehead = prt->dp_ehd; partn->esect = (prt->dp_esect) & 0x3F; partn->ecyl = ((prt->dp_esect << 2) & 0xFF00) | prt->dp_ecyl; if ((partn->id == DOSPTYP_EXTEND) || (partn->id == DOSPTYP_EXTENDL)) off = reloff; else off = offset; #if 0 /* XXX */ partn->bs = letoh32(prt->dp_start) + off; partn->ns = letoh32(prt->dp_size); #else memcpy(&t, &prt->dp_start, sizeof(u_int32_t)); partn->bs = letoh32(t) + off; memcpy(&t, &prt->dp_size, sizeof(u_int32_t)); partn->ns = letoh32(t); #endif PRT_fix_CHS(partn); } int PRT_check_chs(struct prt *partn) { if ( (partn->shead > 255) || (partn->ssect >63) || (partn->scyl > 1023) || (partn->ehead >255) || (partn->esect >63) || (partn->ecyl > 1023) ) { return (0); } return (1); } void PRT_make(struct prt *partn, off_t offset, off_t reloff, struct dos_partition *prt) { off_t off; u_int32_t ecsave, scsave; u_int64_t t; /* Save (and restore below) cylinder info we may fiddle with. */ scsave = partn->scyl; ecsave = partn->ecyl; if ((partn->scyl > 1023) || (partn->ecyl > 1023)) { partn->scyl = (partn->scyl > 1023)? 1023: partn->scyl; partn->ecyl = (partn->ecyl > 1023)? 1023: partn->ecyl; } if ((partn->id == DOSPTYP_EXTEND) || (partn->id == DOSPTYP_EXTENDL)) off = reloff; else off = offset; if (PRT_check_chs(partn)) { prt->dp_shd = partn->shead & 0xFF; prt->dp_ssect = (partn->ssect & 0x3F) | ((partn->scyl & 0x300) >> 2); prt->dp_scyl = partn->scyl & 0xFF; prt->dp_ehd = partn->ehead & 0xFF; prt->dp_esect = (partn->esect & 0x3F) | ((partn->ecyl & 0x300) >> 2); prt->dp_ecyl = partn->ecyl & 0xFF; } else { memset(prt, 0xFF, sizeof(*prt)); } prt->dp_flag = partn->flag & 0xFF; prt->dp_typ = partn->id & 0xFF; t = htole64(partn->bs - off); memcpy(&prt->dp_start, &t, sizeof(u_int32_t)); t = htole64(partn->ns); memcpy(&prt->dp_size, &t, sizeof(u_int32_t)); partn->scyl = scsave; partn->ecyl = ecsave; } void PRT_print(int num, struct prt *partn, char *units) { const int secsize = unit_types[SECTORS].conversion; double size; int i; i = unit_lookup(units); if (partn == NULL) { printf(" Starting Ending " " LBA Info:\n"); printf(" #: id C H S - C H S " "[ start: size ]\n"); printf("---------------------------------------" "----------------------------------------\n"); } else { size = ((double)partn->ns * secsize) / unit_types[i].conversion; printf("%c%1d: %.2X %6u %3u %3u - %6u %3u %3u " "[%12llu:%12.0f%s] %s\n", (partn->flag == DOSACTIVE)?'*':' ', num, partn->id, partn->scyl, partn->shead, partn->ssect, partn->ecyl, partn->ehead, partn->esect, partn->bs, size, unit_types[i].abbr, PRT_ascii_id(partn->id)); } } void PRT_fix_BN(struct prt *part, int pn) { u_int32_t spt, tpc, spc; u_int32_t start = 0; u_int32_t end = 0; /* Zero out entry if not used */ if (part->id == DOSPTYP_UNUSED) { memset(part, 0, sizeof(*part)); return; } /* Disk geometry. */ spt = disk.sectors; tpc = disk.heads; spc = spt * tpc; start += part->scyl * spc; start += part->shead * spt; start += part->ssect - 1; end += part->ecyl * spc; end += part->ehead * spt; end += part->esect - 1; /* XXX - Should handle this... */ if (start > end) warnx("Start of partition #%d after end!", pn); part->bs = start; part->ns = (end - start) + 1; } void PRT_fix_CHS(struct prt *part) { u_int32_t spt, tpc, spc; u_int32_t start, end, size; u_int32_t cyl, head, sect; /* Zero out entry if not used */ if (part->id == DOSPTYP_UNUSED || part->ns == 0) { memset(part, 0, sizeof(*part)); return; } /* Disk geometry. */ spt = disk.sectors; tpc = disk.heads; spc = spt * tpc; start = part->bs; size = part->ns; end = (start + size) - 1; /* Figure out starting CHS values */ cyl = (start / spc); start -= (cyl * spc); head = (start / spt); start -= (head * spt); sect = (start + 1); part->scyl = cyl; part->shead = head; part->ssect = sect; /* Figure out ending CHS values */ cyl = (end / spc); end -= (cyl * spc); head = (end / spt); end -= (head * spt); sect = (end + 1); part->ecyl = cyl; part->ehead = head; part->esect = sect; } char * PRT_uuid_to_typename(struct uuid *uuid) { static char partition_type[37]; /* Room for a GUID if needed. */ 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 = sizeof(part_types) / sizeof(struct part_type); for (i = 0; i < entries; i++) { if (memcmp(part_types[i].guid, uuidstr, sizeof(part_types[i].guid)) == 0) break; } if (i < entries) strlcpy(partition_type, part_types[i].sname, sizeof(partition_type)); else strlcpy(partition_type, uuidstr, sizeof(partition_type)); done: free(uuidstr); return (partition_type); } int PRT_uuid_to_type(struct uuid *uuid) { char *uuidstr; int entries, i, status, type; type = 0; uuid_to_string(uuid, &uuidstr, &status); if (status != uuid_s_ok) goto done; entries = sizeof(part_types) / sizeof(struct part_type); for (i = 0; i < entries; i++) { if (memcmp(part_types[i].guid, uuidstr, sizeof(part_types[i].guid)) == 0) { type = part_types[i].type; break; } } done: free(uuidstr); return (type); } struct uuid * PRT_type_to_uuid(int type) { static struct uuid guid; int i, entries, status = uuid_s_ok; memset(&guid, 0, sizeof(guid)); entries = sizeof(part_types) / sizeof(struct part_type); for (i = 0; i < entries; i++) { if (part_types[i].type == type) break; } if (i < entries) uuid_from_string(part_types[i].guid, &guid, &status); if (i == entries || status != uuid_s_ok) uuid_from_string(part_types[0].guid, &guid, &status); return (&guid); }