Annotation of src/sbin/gpt/gpt.c, Revision 1.15.2.2
1.1 christos 1: /*-
2: * Copyright (c) 2002 Marcel Moolenaar
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: *
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: *
26: * CRC32 code derived from work by Gary S. Brown.
27: */
28:
29: #include <sys/cdefs.h>
1.2 christos 30: #ifdef __FBSDID
1.1 christos 31: __FBSDID("$FreeBSD: src/sbin/gpt/gpt.c,v 1.16 2006/07/07 02:44:23 marcel Exp $");
1.2 christos 32: #endif
33: #ifdef __RCSID
1.15.2.2! yamt 34: __RCSID("$NetBSD: gpt.c,v 1.15.2.1 2012/10/30 18:59:27 yamt Exp $");
1.2 christos 35: #endif
1.1 christos 36:
37: #include <sys/param.h>
38: #include <sys/types.h>
39: #include <sys/disk.h>
40: #include <sys/stat.h>
1.2 christos 41: #include <sys/ioctl.h>
1.1 christos 42:
43: #include <err.h>
44: #include <errno.h>
45: #include <fcntl.h>
46: #include <paths.h>
47: #include <stddef.h>
48: #include <stdio.h>
49: #include <stdlib.h>
50: #include <string.h>
51: #include <unistd.h>
1.2 christos 52: #ifdef __NetBSD__
53: #include <util.h>
54: #include <ctype.h>
55: #include <prop/proplib.h>
56: #include <sys/drvctlio.h>
57: #endif
1.1 christos 58:
59: #include "map.h"
60: #include "gpt.h"
61:
62: char device_path[MAXPATHLEN];
1.9 uebayasi 63: const char *device_arg;
1.1 christos 64: char *device_name;
65:
66: off_t mediasz;
67:
68: u_int parts;
69: u_int secsz;
70:
71: int readonly, verbose;
72:
73: static uint32_t crc32_tab[] = {
74: 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
75: 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
76: 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
77: 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
78: 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
79: 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
80: 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
81: 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
82: 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
83: 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
84: 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
85: 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
86: 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
87: 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
88: 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
89: 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
90: 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
91: 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
92: 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
93: 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
94: 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
95: 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
96: 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
97: 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
98: 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
99: 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
100: 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
101: 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
102: 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
103: 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
104: 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
105: 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
106: 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
107: 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
108: 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
109: 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
110: 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
111: 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
112: 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
113: 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
114: 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
115: 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
116: 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
117: };
118:
119: uint32_t
120: crc32(const void *buf, size_t size)
121: {
122: const uint8_t *p;
123: uint32_t crc;
124:
125: p = buf;
126: crc = ~0U;
127:
128: while (size--)
129: crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
130:
131: return crc ^ ~0U;
132: }
133:
134: uint8_t *
135: utf16_to_utf8(uint16_t *s16)
136: {
137: static uint8_t *s8 = NULL;
138: static size_t s8len = 0;
139: size_t s8idx, s16idx, s16len;
140: uint32_t utfchar;
141: unsigned int c;
142:
143: s16len = 0;
144: while (s16[s16len++] != 0)
145: ;
146: if (s8len < s16len * 3) {
147: if (s8 != NULL)
148: free(s8);
149: s8len = s16len * 3;
150: s8 = calloc(s16len, 3);
151: }
152: s8idx = s16idx = 0;
153: while (s16idx < s16len) {
154: utfchar = le16toh(s16[s16idx++]);
155: if ((utfchar & 0xf800) == 0xd800) {
156: c = le16toh(s16[s16idx]);
157: if ((utfchar & 0x400) != 0 || (c & 0xfc00) != 0xdc00)
158: utfchar = 0xfffd;
159: else
160: s16idx++;
161: }
162: if (utfchar < 0x80) {
163: s8[s8idx++] = utfchar;
164: } else if (utfchar < 0x800) {
165: s8[s8idx++] = 0xc0 | (utfchar >> 6);
166: s8[s8idx++] = 0x80 | (utfchar & 0x3f);
167: } else if (utfchar < 0x10000) {
168: s8[s8idx++] = 0xe0 | (utfchar >> 12);
169: s8[s8idx++] = 0x80 | ((utfchar >> 6) & 0x3f);
170: s8[s8idx++] = 0x80 | (utfchar & 0x3f);
171: } else if (utfchar < 0x200000) {
172: s8[s8idx++] = 0xf0 | (utfchar >> 18);
173: s8[s8idx++] = 0x80 | ((utfchar >> 12) & 0x3f);
174: s8[s8idx++] = 0x80 | ((utfchar >> 6) & 0x3f);
175: s8[s8idx++] = 0x80 | (utfchar & 0x3f);
176: }
177: }
178: return (s8);
179: }
180:
181: void
182: utf8_to_utf16(const uint8_t *s8, uint16_t *s16, size_t s16len)
183: {
184: size_t s16idx, s8idx, s8len;
1.2 christos 185: uint32_t utfchar = 0;
1.1 christos 186: unsigned int c, utfbytes;
187:
188: s8len = 0;
189: while (s8[s8len++] != 0)
190: ;
191: s8idx = s16idx = 0;
192: utfbytes = 0;
193: do {
194: c = s8[s8idx++];
195: if ((c & 0xc0) != 0x80) {
196: /* Initial characters. */
197: if (utfbytes != 0) {
198: /* Incomplete encoding. */
1.15.2.1 yamt 199: s16[s16idx++] = htole16(0xfffd);
1.1 christos 200: if (s16idx == s16len) {
201: s16[--s16idx] = 0;
202: return;
203: }
204: }
205: if ((c & 0xf8) == 0xf0) {
206: utfchar = c & 0x07;
207: utfbytes = 3;
208: } else if ((c & 0xf0) == 0xe0) {
209: utfchar = c & 0x0f;
210: utfbytes = 2;
211: } else if ((c & 0xe0) == 0xc0) {
212: utfchar = c & 0x1f;
213: utfbytes = 1;
214: } else {
215: utfchar = c & 0x7f;
216: utfbytes = 0;
217: }
218: } else {
219: /* Followup characters. */
220: if (utfbytes > 0) {
221: utfchar = (utfchar << 6) + (c & 0x3f);
222: utfbytes--;
223: } else if (utfbytes == 0)
224: utfbytes = -1;
225: }
226: if (utfbytes == 0) {
227: if (utfchar >= 0x10000 && s16idx + 2 >= s16len)
228: utfchar = 0xfffd;
229: if (utfchar >= 0x10000) {
1.15.2.1 yamt 230: s16[s16idx++] =
231: htole16(0xd800 | ((utfchar>>10)-0x40));
232: s16[s16idx++] =
233: htole16(0xdc00 | (utfchar & 0x3ff));
1.1 christos 234: } else
1.15.2.1 yamt 235: s16[s16idx++] = htole16(utfchar);
1.1 christos 236: if (s16idx == s16len) {
237: s16[--s16idx] = 0;
238: return;
239: }
240: }
241: } while (c != 0);
242: }
243:
244: void
245: le_uuid_dec(void const *buf, uuid_t *uuid)
246: {
247: u_char const *p;
248: int i;
249:
250: p = buf;
251: uuid->time_low = le32dec(p);
252: uuid->time_mid = le16dec(p + 4);
253: uuid->time_hi_and_version = le16dec(p + 6);
254: uuid->clock_seq_hi_and_reserved = p[8];
255: uuid->clock_seq_low = p[9];
256: for (i = 0; i < _UUID_NODE_LEN; i++)
257: uuid->node[i] = p[10 + i];
258: }
259:
260: void
261: le_uuid_enc(void *buf, uuid_t const *uuid)
262: {
263: u_char *p;
264: int i;
265:
266: p = buf;
267: le32enc(p, uuid->time_low);
268: le16enc(p + 4, uuid->time_mid);
269: le16enc(p + 6, uuid->time_hi_and_version);
270: p[8] = uuid->clock_seq_hi_and_reserved;
271: p[9] = uuid->clock_seq_low;
272: for (i = 0; i < _UUID_NODE_LEN; i++)
273: p[10 + i] = uuid->node[i];
274: }
275:
276: int
277: parse_uuid(const char *s, uuid_t *uuid)
278: {
279: uint32_t status;
280:
281: uuid_from_string(s, uuid, &status);
282: if (status == uuid_s_ok)
283: return (0);
284:
285: switch (*s) {
1.8 christos 286: case 'b':
287: if (strcmp(s, "bios") == 0) {
288: uuid_t bios = GPT_ENT_TYPE_BIOS;
289: *uuid = bios;
290: return (0);
291: }
292: break;
1.7 riz 293: case 'c':
294: if (strcmp(s, "ccd") == 0) {
295: uuid_t ccd = GPT_ENT_TYPE_NETBSD_CCD;
296: *uuid = ccd;
297: return (0);
298: } else if (strcmp(s, "cgd") == 0) {
299: uuid_t cgd = GPT_ENT_TYPE_NETBSD_CGD;
300: *uuid = cgd;
301: return (0);
302: }
303: break;
1.1 christos 304: case 'e':
305: if (strcmp(s, "efi") == 0) {
306: uuid_t efi = GPT_ENT_TYPE_EFI;
307: *uuid = efi;
308: return (0);
309: }
310: break;
1.14 jakllsch 311: case 'f':
312: if (strcmp(s, "ffs") == 0) {
313: uuid_t nb_ffs = GPT_ENT_TYPE_NETBSD_FFS;
314: *uuid = nb_ffs;
315: return (0);
316: }
317: break;
1.1 christos 318: case 'h':
319: if (strcmp(s, "hfs") == 0) {
320: uuid_t hfs = GPT_ENT_TYPE_APPLE_HFS;
321: *uuid = hfs;
322: return (0);
323: }
324: break;
325: case 'l':
1.7 riz 326: if (strcmp(s, "lfs") == 0) {
327: uuid_t lfs = GPT_ENT_TYPE_NETBSD_LFS;
328: *uuid = lfs;
329: return (0);
330: } else if (strcmp(s, "linux") == 0) {
1.15.2.2! yamt 331: uuid_t lnx = GPT_ENT_TYPE_LINUX_DATA;
1.1 christos 332: *uuid = lnx;
333: return (0);
334: }
335: break;
1.7 riz 336: case 'r':
337: if (strcmp(s, "raid") == 0) {
338: uuid_t raid = GPT_ENT_TYPE_NETBSD_RAIDFRAME;
339: *uuid = raid;
340: return (0);
341: }
342: break;
1.1 christos 343: case 's':
344: if (strcmp(s, "swap") == 0) {
1.7 riz 345: uuid_t sw = GPT_ENT_TYPE_NETBSD_SWAP;
1.1 christos 346: *uuid = sw;
347: return (0);
348: }
349: break;
350: case 'u':
351: if (strcmp(s, "ufs") == 0) {
1.7 riz 352: uuid_t ufs = GPT_ENT_TYPE_NETBSD_FFS;
1.1 christos 353: *uuid = ufs;
354: return (0);
355: }
356: break;
357: case 'w':
358: if (strcmp(s, "windows") == 0) {
359: uuid_t win = GPT_ENT_TYPE_MS_BASIC_DATA;
360: *uuid = win;
361: return (0);
362: }
363: break;
364: }
365: return (EINVAL);
366: }
367:
368: void*
369: gpt_read(int fd, off_t lba, size_t count)
370: {
371: off_t ofs;
372: void *buf;
373:
374: count *= secsz;
375: buf = malloc(count);
376: if (buf == NULL)
377: return (NULL);
378:
379: ofs = lba * secsz;
380: if (lseek(fd, ofs, SEEK_SET) == ofs &&
381: read(fd, buf, count) == (ssize_t)count)
382: return (buf);
383:
384: free(buf);
385: return (NULL);
386: }
387:
388: int
389: gpt_write(int fd, map_t *map)
390: {
391: off_t ofs;
392: size_t count;
393:
394: count = map->map_size * secsz;
395: ofs = map->map_start * secsz;
396: if (lseek(fd, ofs, SEEK_SET) == ofs &&
397: write(fd, map->map_data, count) == (ssize_t)count)
398: return (0);
399: return (-1);
400: }
401:
402: static int
403: gpt_mbr(int fd, off_t lba)
404: {
405: struct mbr *mbr;
406: map_t *m, *p;
407: off_t size, start;
408: unsigned int i, pmbr;
409:
410: mbr = gpt_read(fd, lba, 1);
411: if (mbr == NULL)
412: return (-1);
413:
414: if (mbr->mbr_sig != htole16(MBR_SIG)) {
415: if (verbose)
416: warnx("%s: MBR not found at sector %llu", device_name,
417: (long long)lba);
418: free(mbr);
419: return (0);
420: }
421:
422: /*
423: * Differentiate between a regular MBR and a PMBR. This is more
424: * convenient in general. A PMBR is one with a single partition
425: * of type 0xee.
426: */
427: pmbr = 0;
428: for (i = 0; i < 4; i++) {
429: if (mbr->mbr_part[i].part_typ == 0)
430: continue;
431: if (mbr->mbr_part[i].part_typ == 0xee)
432: pmbr++;
433: else
434: break;
435: }
436: if (pmbr && i == 4 && lba == 0) {
437: if (pmbr != 1)
438: warnx("%s: Suspicious PMBR at sector %llu",
439: device_name, (long long)lba);
440: else if (verbose > 1)
441: warnx("%s: PMBR at sector %llu", device_name,
442: (long long)lba);
443: p = map_add(lba, 1LL, MAP_TYPE_PMBR, mbr);
444: return ((p == NULL) ? -1 : 0);
445: }
446: if (pmbr)
447: warnx("%s: Suspicious MBR at sector %llu", device_name,
448: (long long)lba);
449: else if (verbose > 1)
450: warnx("%s: MBR at sector %llu", device_name, (long long)lba);
451:
452: p = map_add(lba, 1LL, MAP_TYPE_MBR, mbr);
453: if (p == NULL)
454: return (-1);
455: for (i = 0; i < 4; i++) {
456: if (mbr->mbr_part[i].part_typ == 0 ||
457: mbr->mbr_part[i].part_typ == 0xee)
458: continue;
459: start = le16toh(mbr->mbr_part[i].part_start_hi);
460: start = (start << 16) + le16toh(mbr->mbr_part[i].part_start_lo);
461: size = le16toh(mbr->mbr_part[i].part_size_hi);
462: size = (size << 16) + le16toh(mbr->mbr_part[i].part_size_lo);
463: if (start == 0 && size == 0) {
464: warnx("%s: Malformed MBR at sector %llu", device_name,
465: (long long)lba);
466: continue;
467: }
468: /* start is relative to the offset of the MBR itself. */
469: start += lba;
470: if (verbose > 2)
471: warnx("%s: MBR part: type=%d, start=%llu, size=%llu",
472: device_name, mbr->mbr_part[i].part_typ,
473: (long long)start, (long long)size);
474: if (mbr->mbr_part[i].part_typ != 15) {
475: m = map_add(start, size, MAP_TYPE_MBR_PART, p);
476: if (m == NULL)
477: return (-1);
478: m->map_index = i + 1;
479: } else {
480: if (gpt_mbr(fd, start) == -1)
481: return (-1);
482: }
483: }
484: return (0);
485: }
486:
1.2 christos 487: #ifdef __NetBSD__
488: static int
489: drvctl(const char *name, u_int *sector_size, off_t *media_size)
490: {
491: prop_dictionary_t command_dict, args_dict, results_dict, data_dict,
492: disk_info, geometry;
493: prop_string_t string;
494: prop_number_t number;
495: int dfd, res;
496: char *dname, *p;
497:
1.4 dyoung 498: if ((dfd = open("/dev/drvctl", O_RDONLY)) == -1) {
499: warn("%s: /dev/drvctl", __func__);
1.2 christos 500: return -1;
1.4 dyoung 501: }
1.2 christos 502:
503: command_dict = prop_dictionary_create();
504: args_dict = prop_dictionary_create();
505:
506: string = prop_string_create_cstring_nocopy("get-properties");
507: prop_dictionary_set(command_dict, "drvctl-command", string);
508: prop_object_release(string);
509:
510: if ((dname = strdup(name[0] == 'r' ? name + 1 : name)) == NULL) {
511: (void)close(dfd);
512: return -1;
513: }
514: for (p = dname; *p; p++)
515: continue;
516: for (--p; p >= dname && !isdigit((unsigned char)*p); *p-- = '\0')
517: continue;
518:
519: string = prop_string_create_cstring(dname);
520: free(dname);
521: prop_dictionary_set(args_dict, "device-name", string);
522: prop_object_release(string);
523:
524: prop_dictionary_set(command_dict, "drvctl-arguments", args_dict);
525: prop_object_release(args_dict);
526:
527: res = prop_dictionary_sendrecv_ioctl(command_dict, dfd, DRVCTLCOMMAND,
528: &results_dict);
529: (void)close(dfd);
530: prop_object_release(command_dict);
531: if (res) {
1.4 dyoung 532: warn("%s: prop_dictionary_sendrecv_ioctl", __func__);
1.2 christos 533: errno = res;
534: return -1;
535: }
536:
537: number = prop_dictionary_get(results_dict, "drvctl-error");
538: if ((errno = prop_number_integer_value(number)) != 0)
539: return -1;
540:
541: data_dict = prop_dictionary_get(results_dict, "drvctl-result-data");
542: if (data_dict == NULL)
543: goto out;
544:
545: disk_info = prop_dictionary_get(data_dict, "disk-info");
546: if (disk_info == NULL)
547: goto out;
548:
549: geometry = prop_dictionary_get(disk_info, "geometry");
550: if (geometry == NULL)
551: goto out;
552:
553: number = prop_dictionary_get(geometry, "sector-size");
554: if (number == NULL)
555: goto out;
556:
557: *sector_size = prop_number_integer_value(number);
558:
559: number = prop_dictionary_get(geometry, "sectors-per-unit");
560: if (number == NULL)
561: goto out;
562:
563: *media_size = prop_number_integer_value(number) * *sector_size;
564:
565: return 0;
566: out:
567: errno = EINVAL;
568: return -1;
569: }
570: #endif
571:
1.1 christos 572: static int
1.11 christos 573: gpt_gpt(int fd, off_t lba, int found)
1.1 christos 574: {
575: uuid_t type;
576: off_t size;
577: struct gpt_ent *ent;
578: struct gpt_hdr *hdr;
579: char *p, *s;
580: map_t *m;
581: size_t blocks, tblsz;
582: unsigned int i;
583: uint32_t crc;
584:
585: hdr = gpt_read(fd, lba, 1);
586: if (hdr == NULL)
587: return (-1);
588:
589: if (memcmp(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig)))
590: goto fail_hdr;
591:
592: crc = le32toh(hdr->hdr_crc_self);
593: hdr->hdr_crc_self = 0;
594: if (crc32(hdr, le32toh(hdr->hdr_size)) != crc) {
595: if (verbose)
596: warnx("%s: Bad CRC in GPT header at sector %llu",
597: device_name, (long long)lba);
598: goto fail_hdr;
599: }
600:
601: tblsz = le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz);
602: blocks = tblsz / secsz + ((tblsz % secsz) ? 1 : 0);
603:
604: /* Use generic pointer to deal with hdr->hdr_entsz != sizeof(*ent). */
605: p = gpt_read(fd, le64toh(hdr->hdr_lba_table), blocks);
1.11 christos 606: if (p == NULL) {
607: if (found) {
608: if (verbose)
609: warn("%s: Cannot read LBA table at sector %llu",
1.12 christos 610: device_name, (unsigned long long)
611: le64toh(hdr->hdr_lba_table));
1.11 christos 612: return (-1);
613: }
614: goto fail_hdr;
615: }
1.1 christos 616:
617: if (crc32(p, tblsz) != le32toh(hdr->hdr_crc_table)) {
618: if (verbose)
619: warnx("%s: Bad CRC in GPT table at sector %llu",
620: device_name,
621: (long long)le64toh(hdr->hdr_lba_table));
622: goto fail_ent;
623: }
624:
625: if (verbose > 1)
626: warnx("%s: %s GPT at sector %llu", device_name,
627: (lba == 1) ? "Pri" : "Sec", (long long)lba);
628:
629: m = map_add(lba, 1, (lba == 1)
630: ? MAP_TYPE_PRI_GPT_HDR : MAP_TYPE_SEC_GPT_HDR, hdr);
631: if (m == NULL)
632: return (-1);
633:
634: m = map_add(le64toh(hdr->hdr_lba_table), blocks, (lba == 1)
635: ? MAP_TYPE_PRI_GPT_TBL : MAP_TYPE_SEC_GPT_TBL, p);
636: if (m == NULL)
637: return (-1);
638:
639: if (lba != 1)
1.11 christos 640: return (1);
1.1 christos 641:
642: for (i = 0; i < le32toh(hdr->hdr_entries); i++) {
643: ent = (void*)(p + i * le32toh(hdr->hdr_entsz));
1.2 christos 644: if (uuid_is_nil((uuid_t *)&ent->ent_type, NULL))
1.1 christos 645: continue;
646:
647: size = le64toh(ent->ent_lba_end) - le64toh(ent->ent_lba_start) +
648: 1LL;
649: if (verbose > 2) {
650: le_uuid_dec(&ent->ent_type, &type);
651: uuid_to_string(&type, &s, NULL);
652: warnx(
653: "%s: GPT partition: type=%s, start=%llu, size=%llu", device_name, s,
654: (long long)le64toh(ent->ent_lba_start),
655: (long long)size);
656: free(s);
657: }
658: m = map_add(le64toh(ent->ent_lba_start), size,
659: MAP_TYPE_GPT_PART, ent);
660: if (m == NULL)
661: return (-1);
662: m->map_index = i + 1;
663: }
1.11 christos 664: return (1);
1.1 christos 665:
666: fail_ent:
667: free(p);
668:
669: fail_hdr:
670: free(hdr);
671: return (0);
672: }
673:
674: int
675: gpt_open(const char *dev)
676: {
677: struct stat sb;
1.11 christos 678: int fd, mode, found;
1.1 christos 679:
680: mode = readonly ? O_RDONLY : O_RDWR|O_EXCL;
681:
1.9 uebayasi 682: device_arg = dev;
1.2 christos 683: #ifdef __FreeBSD__
1.1 christos 684: strlcpy(device_path, dev, sizeof(device_path));
685: if ((fd = open(device_path, mode)) != -1)
686: goto found;
687:
688: snprintf(device_path, sizeof(device_path), "%s%s", _PATH_DEV, dev);
689: device_name = device_path + strlen(_PATH_DEV);
690: if ((fd = open(device_path, mode)) != -1)
691: goto found;
692: return (-1);
1.2 christos 693: found:
694: #endif
695: #ifdef __NetBSD__
1.10 mlelstv 696: device_name = device_path + strlen(_PATH_DEV);
1.2 christos 697: fd = opendisk(dev, mode, device_path, sizeof(device_path), 0);
698: if (fd == -1)
699: return -1;
700: #endif
1.1 christos 701:
702: if (fstat(fd, &sb) == -1)
703: goto close;
704:
705: if ((sb.st_mode & S_IFMT) != S_IFREG) {
1.2 christos 706: #ifdef DIOCGSECTORSIZE
1.1 christos 707: if (ioctl(fd, DIOCGSECTORSIZE, &secsz) == -1 ||
708: ioctl(fd, DIOCGMEDIASIZE, &mediasz) == -1)
709: goto close;
1.2 christos 710: #endif
711: #ifdef __NetBSD__
712: if (drvctl(device_name, &secsz, &mediasz) == -1)
713: goto close;
714: #endif
1.1 christos 715: } else {
716: secsz = 512; /* Fixed size for files. */
717: if (sb.st_size % secsz) {
718: errno = EINVAL;
719: goto close;
720: }
721: mediasz = sb.st_size;
722: }
723:
724: /*
725: * We require an absolute minimum of 6 sectors. One for the MBR,
726: * 2 for the GPT header, 2 for the GPT table and one to hold some
727: * user data. Let's catch this extreme border case here so that
728: * we don't have to worry about it later.
729: */
730: if (mediasz / secsz < 6) {
731: errno = ENODEV;
732: goto close;
733: }
734:
735: if (verbose)
736: warnx("%s: mediasize=%llu; sectorsize=%u; blocks=%llu",
737: device_name, (long long)mediasz, secsz,
738: (long long)(mediasz / secsz));
739:
740: map_init(mediasz / secsz);
741:
742: if (gpt_mbr(fd, 0LL) == -1)
743: goto close;
1.11 christos 744: if ((found = gpt_gpt(fd, 1LL, 1)) == -1)
1.1 christos 745: goto close;
1.11 christos 746: if (gpt_gpt(fd, mediasz / secsz - 1LL, found) == -1)
1.1 christos 747: goto close;
748:
749: return (fd);
750:
751: close:
752: close(fd);
753: return (-1);
754: }
755:
756: void
757: gpt_close(int fd)
758: {
759: /* XXX post processing? */
760: close(fd);
761: }
762:
763: static struct {
764: int (*fptr)(int, char *[]);
765: const char *name;
766: } cmdsw[] = {
767: { cmd_add, "add" },
1.13 jakllsch 768: { cmd_biosboot, "biosboot" },
1.1 christos 769: { cmd_create, "create" },
770: { cmd_destroy, "destroy" },
771: { NULL, "help" },
772: { cmd_label, "label" },
773: { cmd_migrate, "migrate" },
774: { cmd_recover, "recover" },
775: { cmd_remove, "remove" },
776: { NULL, "rename" },
777: { cmd_show, "show" },
778: { NULL, "verify" },
779: { NULL, NULL }
780: };
781:
1.15 joerg 782: __dead static void
1.1 christos 783: usage(void)
784: {
1.13 jakllsch 785: extern const char addmsg[], biosbootmsg[], createmsg[], destroymsg[];
1.5 riz 786: extern const char labelmsg1[], labelmsg2[], labelmsg3[];
787: extern const char migratemsg[], recovermsg[], removemsg1[];
788: extern const char removemsg2[], showmsg[];
1.1 christos 789:
790: fprintf(stderr,
1.5 riz 791: "usage: %s %s\n"
792: " %s %s\n"
793: " %s %s\n"
794: " %s %s\n"
795: " %s %s\n"
1.13 jakllsch 796: " %s %s\n"
1.5 riz 797: " %*s %s\n"
798: " %s %s\n"
799: " %s %s\n"
800: " %s %s\n"
801: " %s %s\n"
802: " %s %s\n",
803: getprogname(), addmsg,
1.13 jakllsch 804: getprogname(), biosbootmsg,
1.5 riz 805: getprogname(), createmsg,
806: getprogname(), destroymsg,
807: getprogname(), labelmsg1,
808: getprogname(), labelmsg2,
1.6 dogcow 809: (int)strlen(getprogname()), "", labelmsg3,
1.5 riz 810: getprogname(), migratemsg,
811: getprogname(), recovermsg,
812: getprogname(), removemsg1,
813: getprogname(), removemsg2,
814: getprogname(), showmsg);
1.1 christos 815: exit(1);
816: }
817:
818: static void
819: prefix(const char *cmd)
820: {
821: char *pfx;
822: const char *prg;
823:
824: prg = getprogname();
825: pfx = malloc(strlen(prg) + strlen(cmd) + 2);
826: /* Don't bother failing. It's not important */
827: if (pfx == NULL)
828: return;
829:
830: sprintf(pfx, "%s %s", prg, cmd);
831: setprogname(pfx);
832: }
833:
834: int
835: main(int argc, char *argv[])
836: {
837: char *cmd, *p;
838: int ch, i;
839:
840: /* Get the generic options */
841: while ((ch = getopt(argc, argv, "p:rv")) != -1) {
842: switch(ch) {
843: case 'p':
844: if (parts > 0)
845: usage();
1.3 riz 846: parts = strtoul(optarg, &p, 10);
1.1 christos 847: if (*p != 0 || parts < 1)
848: usage();
849: break;
850: case 'r':
851: readonly = 1;
852: break;
853: case 'v':
854: verbose++;
855: break;
856: default:
857: usage();
858: }
859: }
860: if (!parts)
861: parts = 128;
862:
863: if (argc == optind)
864: usage();
865:
866: cmd = argv[optind++];
867: for (i = 0; cmdsw[i].name != NULL && strcmp(cmd, cmdsw[i].name); i++);
868:
869: if (cmdsw[i].fptr == NULL)
870: errx(1, "unknown command: %s", cmd);
871:
872: prefix(cmd);
873: return ((*cmdsw[i].fptr)(argc, argv));
874: }
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