Annotation of src/sbin/gpt/gpt.c, Revision 1.69.2.1
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:
1.31 christos 29: #if HAVE_NBTOOL_CONFIG_H
30: #include "nbtool_config.h"
31: #endif
32:
1.1 christos 33: #include <sys/cdefs.h>
1.2 christos 34: #ifdef __FBSDID
1.1 christos 35: __FBSDID("$FreeBSD: src/sbin/gpt/gpt.c,v 1.16 2006/07/07 02:44:23 marcel Exp $");
1.2 christos 36: #endif
37: #ifdef __RCSID
1.69.2.1! bouyer 38: __RCSID("$NetBSD: gpt.c,v 1.70 2017/02/16 03:32:17 christos Exp $");
1.2 christos 39: #endif
1.1 christos 40:
41: #include <sys/param.h>
42: #include <sys/types.h>
43: #include <sys/stat.h>
1.2 christos 44: #include <sys/ioctl.h>
1.25 jakllsch 45: #include <sys/bootblock.h>
1.1 christos 46:
47: #include <err.h>
48: #include <errno.h>
49: #include <fcntl.h>
50: #include <paths.h>
51: #include <stddef.h>
1.42 christos 52: #include <stdarg.h>
1.1 christos 53: #include <stdio.h>
54: #include <stdlib.h>
55: #include <string.h>
56: #include <unistd.h>
1.32 christos 57: #include <ctype.h>
1.1 christos 58:
59: #include "map.h"
60: #include "gpt.h"
1.49 christos 61: #include "gpt_private.h"
1.1 christos 62:
63: static uint32_t crc32_tab[] = {
64: 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
65: 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
66: 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
67: 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
68: 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
69: 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
70: 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
71: 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
72: 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
73: 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
74: 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
75: 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
76: 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
77: 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
78: 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
79: 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
80: 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
81: 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
82: 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
83: 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
84: 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
85: 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
86: 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
87: 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
88: 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
89: 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
90: 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
91: 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
92: 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
93: 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
94: 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
95: 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
96: 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
97: 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
98: 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
99: 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
100: 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
101: 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
102: 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
103: 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
104: 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
105: 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
106: 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
107: };
108:
109: uint32_t
110: crc32(const void *buf, size_t size)
111: {
112: const uint8_t *p;
113: uint32_t crc;
114:
115: p = buf;
116: crc = ~0U;
117:
118: while (size--)
119: crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
120:
121: return crc ^ ~0U;
122: }
123:
1.53 christos 124: void
125: utf16_to_utf8(const uint16_t *s16, uint8_t *s8, size_t s8len)
1.1 christos 126: {
127: size_t s8idx, s16idx, s16len;
128: uint32_t utfchar;
129: unsigned int c;
130:
131: s16len = 0;
132: while (s16[s16len++] != 0)
1.53 christos 133: continue;
1.1 christos 134: s8idx = s16idx = 0;
135: while (s16idx < s16len) {
136: utfchar = le16toh(s16[s16idx++]);
137: if ((utfchar & 0xf800) == 0xd800) {
138: c = le16toh(s16[s16idx]);
139: if ((utfchar & 0x400) != 0 || (c & 0xfc00) != 0xdc00)
140: utfchar = 0xfffd;
141: else
142: s16idx++;
143: }
144: if (utfchar < 0x80) {
1.53 christos 145: if (s8idx + 1 >= s8len)
146: break;
1.59 christos 147: s8[s8idx++] = (uint8_t)utfchar;
1.1 christos 148: } else if (utfchar < 0x800) {
1.53 christos 149: if (s8idx + 2 >= s8len)
150: break;
1.59 christos 151: s8[s8idx++] = (uint8_t)(0xc0 | (utfchar >> 6));
152: s8[s8idx++] = (uint8_t)(0x80 | (utfchar & 0x3f));
1.1 christos 153: } else if (utfchar < 0x10000) {
1.53 christos 154: if (s8idx + 3 >= s8len)
155: break;
1.59 christos 156: s8[s8idx++] = (uint8_t)(0xe0 | (utfchar >> 12));
157: s8[s8idx++] = (uint8_t)(0x80 | ((utfchar >> 6) & 0x3f));
158: s8[s8idx++] = (uint8_t)(0x80 | (utfchar & 0x3f));
1.1 christos 159: } else if (utfchar < 0x200000) {
1.53 christos 160: if (s8idx + 4 >= s8len)
161: break;
1.59 christos 162: s8[s8idx++] = (uint8_t)(0xf0 | (utfchar >> 18));
163: s8[s8idx++] = (uint8_t)(0x80 | ((utfchar >> 12) & 0x3f));
164: s8[s8idx++] = (uint8_t)(0x80 | ((utfchar >> 6) & 0x3f));
165: s8[s8idx++] = (uint8_t)(0x80 | (utfchar & 0x3f));
1.1 christos 166: }
167: }
1.53 christos 168: s8[s8idx] = 0;
1.1 christos 169: }
170:
171: void
172: utf8_to_utf16(const uint8_t *s8, uint16_t *s16, size_t s16len)
173: {
174: size_t s16idx, s8idx, s8len;
1.2 christos 175: uint32_t utfchar = 0;
1.1 christos 176: unsigned int c, utfbytes;
177:
178: s8len = 0;
179: while (s8[s8len++] != 0)
180: ;
181: s8idx = s16idx = 0;
182: utfbytes = 0;
183: do {
184: c = s8[s8idx++];
185: if ((c & 0xc0) != 0x80) {
186: /* Initial characters. */
187: if (utfbytes != 0) {
188: /* Incomplete encoding. */
1.17 matt 189: s16[s16idx++] = htole16(0xfffd);
1.1 christos 190: if (s16idx == s16len) {
191: s16[--s16idx] = 0;
192: return;
193: }
194: }
195: if ((c & 0xf8) == 0xf0) {
196: utfchar = c & 0x07;
197: utfbytes = 3;
198: } else if ((c & 0xf0) == 0xe0) {
199: utfchar = c & 0x0f;
200: utfbytes = 2;
201: } else if ((c & 0xe0) == 0xc0) {
202: utfchar = c & 0x1f;
203: utfbytes = 1;
204: } else {
205: utfchar = c & 0x7f;
206: utfbytes = 0;
207: }
208: } else {
209: /* Followup characters. */
210: if (utfbytes > 0) {
211: utfchar = (utfchar << 6) + (c & 0x3f);
212: utfbytes--;
213: } else if (utfbytes == 0)
1.59 christos 214: utfbytes = (u_int)~0;
1.1 christos 215: }
216: if (utfbytes == 0) {
217: if (utfchar >= 0x10000 && s16idx + 2 >= s16len)
1.17 matt 218: utfchar = 0xfffd;
1.1 christos 219: if (utfchar >= 0x10000) {
1.59 christos 220: s16[s16idx++] = htole16((uint16_t)
221: (0xd800 | ((utfchar>>10) - 0x40)));
222: s16[s16idx++] = htole16((uint16_t)
223: (0xdc00 | (utfchar & 0x3ff)));
1.1 christos 224: } else
1.59 christos 225: s16[s16idx++] = htole16((uint16_t)utfchar);
1.1 christos 226: if (s16idx == s16len) {
227: s16[--s16idx] = 0;
228: return;
229: }
230: }
231: } while (c != 0);
232: }
233:
1.49 christos 234: void *
235: gpt_read(gpt_t gpt, off_t lba, size_t count)
1.1 christos 236: {
237: off_t ofs;
238: void *buf;
239:
1.49 christos 240: count *= gpt->secsz;
1.1 christos 241: buf = malloc(count);
242: if (buf == NULL)
1.49 christos 243: return NULL;
1.1 christos 244:
1.49 christos 245: ofs = lba * gpt->secsz;
246: if (lseek(gpt->fd, ofs, SEEK_SET) == ofs &&
247: read(gpt->fd, buf, count) == (ssize_t)count)
248: return buf;
1.1 christos 249:
250: free(buf);
1.49 christos 251: return NULL;
1.1 christos 252: }
253:
254: int
1.49 christos 255: gpt_write(gpt_t gpt, map_t map)
1.1 christos 256: {
257: off_t ofs;
258: size_t count;
259:
1.59 christos 260: count = (size_t)(map->map_size * gpt->secsz);
1.49 christos 261: ofs = map->map_start * gpt->secsz;
262: if (lseek(gpt->fd, ofs, SEEK_SET) != ofs ||
263: write(gpt->fd, map->map_data, count) != (ssize_t)count)
1.46 christos 264: return -1;
1.49 christos 265: gpt->flags |= GPT_MODIFIED;
1.46 christos 266: return 0;
1.1 christos 267: }
268:
269: static int
1.49 christos 270: gpt_mbr(gpt_t gpt, off_t lba)
1.1 christos 271: {
272: struct mbr *mbr;
1.49 christos 273: map_t m, p;
1.1 christos 274: off_t size, start;
275: unsigned int i, pmbr;
276:
1.49 christos 277: mbr = gpt_read(gpt, lba, 1);
1.42 christos 278: if (mbr == NULL) {
1.49 christos 279: gpt_warn(gpt, "Read failed");
280: return -1;
1.42 christos 281: }
1.1 christos 282:
283: if (mbr->mbr_sig != htole16(MBR_SIG)) {
1.49 christos 284: if (gpt->verbose)
285: gpt_msg(gpt,
286: "MBR not found at sector %ju", (uintmax_t)lba);
1.1 christos 287: free(mbr);
1.49 christos 288: return 0;
1.1 christos 289: }
290:
291: /*
292: * Differentiate between a regular MBR and a PMBR. This is more
293: * convenient in general. A PMBR is one with a single partition
294: * of type 0xee.
295: */
296: pmbr = 0;
297: for (i = 0; i < 4; i++) {
1.25 jakllsch 298: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_UNUSED)
1.1 christos 299: continue;
1.25 jakllsch 300: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_PMBR)
1.1 christos 301: pmbr++;
302: else
303: break;
304: }
305: if (pmbr && i == 4 && lba == 0) {
1.49 christos 306: if (pmbr != 1)
307: gpt_warnx(gpt, "Suspicious PMBR at sector %ju",
308: (uintmax_t)lba);
309: else if (gpt->verbose > 1)
310: gpt_msg(gpt, "PMBR at sector %ju", (uintmax_t)lba);
1.61 christos 311: p = map_add(gpt, lba, 1LL, MAP_TYPE_PMBR, mbr, 1);
1.49 christos 312: goto out;
313: }
314: if (pmbr)
315: gpt_warnx(gpt, "Suspicious MBR at sector %ju", (uintmax_t)lba);
316: else if (gpt->verbose > 1)
317: gpt_msg(gpt, "MBR at sector %ju", (uintmax_t)lba);
1.1 christos 318:
1.61 christos 319: p = map_add(gpt, lba, 1LL, MAP_TYPE_MBR, mbr, 1);
1.1 christos 320: if (p == NULL)
1.49 christos 321: goto out;
322:
1.1 christos 323: for (i = 0; i < 4; i++) {
1.25 jakllsch 324: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_UNUSED ||
325: mbr->mbr_part[i].part_typ == MBR_PTYPE_PMBR)
1.1 christos 326: continue;
327: start = le16toh(mbr->mbr_part[i].part_start_hi);
328: start = (start << 16) + le16toh(mbr->mbr_part[i].part_start_lo);
329: size = le16toh(mbr->mbr_part[i].part_size_hi);
330: size = (size << 16) + le16toh(mbr->mbr_part[i].part_size_lo);
331: if (start == 0 && size == 0) {
1.49 christos 332: gpt_warnx(gpt, "Malformed MBR at sector %ju",
333: (uintmax_t)lba);
1.1 christos 334: continue;
335: }
336: /* start is relative to the offset of the MBR itself. */
337: start += lba;
1.49 christos 338: if (gpt->verbose > 2)
1.68 christos 339: gpt_msg(gpt, "MBR part: flag=%#x type=%d, start=%ju, "
340: "size=%ju", mbr->mbr_part[i].part_flag,
1.42 christos 341: mbr->mbr_part[i].part_typ,
342: (uintmax_t)start, (uintmax_t)size);
1.25 jakllsch 343: if (mbr->mbr_part[i].part_typ != MBR_PTYPE_EXT_LBA) {
1.61 christos 344: m = map_add(gpt, start, size, MAP_TYPE_MBR_PART, p, 0);
1.1 christos 345: if (m == NULL)
1.49 christos 346: return -1;
1.1 christos 347: m->map_index = i + 1;
348: } else {
1.49 christos 349: if (gpt_mbr(gpt, start) == -1)
350: return -1;
1.1 christos 351: }
352: }
1.49 christos 353: return 0;
354: out:
355: if (p == NULL) {
356: free(mbr);
357: return -1;
358: }
359: return 0;
1.1 christos 360: }
361:
1.29 jnemeth 362: int
1.49 christos 363: gpt_gpt(gpt_t gpt, off_t lba, int found)
1.1 christos 364: {
365: off_t size;
366: struct gpt_ent *ent;
367: struct gpt_hdr *hdr;
1.34 christos 368: char *p;
1.49 christos 369: map_t m;
1.1 christos 370: size_t blocks, tblsz;
371: unsigned int i;
372: uint32_t crc;
373:
1.49 christos 374: hdr = gpt_read(gpt, lba, 1);
1.1 christos 375: if (hdr == NULL)
1.49 christos 376: return -1;
1.1 christos 377:
378: if (memcmp(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig)))
379: goto fail_hdr;
380:
381: crc = le32toh(hdr->hdr_crc_self);
382: hdr->hdr_crc_self = 0;
383: if (crc32(hdr, le32toh(hdr->hdr_size)) != crc) {
1.49 christos 384: if (gpt->verbose)
385: gpt_msg(gpt, "Bad CRC in GPT header at sector %ju",
386: (uintmax_t)lba);
1.1 christos 387: goto fail_hdr;
388: }
389:
390: tblsz = le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz);
1.49 christos 391: blocks = tblsz / gpt->secsz + ((tblsz % gpt->secsz) ? 1 : 0);
1.1 christos 392:
393: /* Use generic pointer to deal with hdr->hdr_entsz != sizeof(*ent). */
1.59 christos 394: p = gpt_read(gpt, (off_t)le64toh((uint64_t)hdr->hdr_lba_table), blocks);
1.11 christos 395: if (p == NULL) {
396: if (found) {
1.49 christos 397: if (gpt->verbose)
398: gpt_msg(gpt,
399: "Cannot read LBA table at sector %ju",
400: (uintmax_t)le64toh(hdr->hdr_lba_table));
401: return -1;
1.11 christos 402: }
403: goto fail_hdr;
404: }
1.1 christos 405:
406: if (crc32(p, tblsz) != le32toh(hdr->hdr_crc_table)) {
1.49 christos 407: if (gpt->verbose)
408: gpt_msg(gpt, "Bad CRC in GPT table at sector %ju",
409: (uintmax_t)le64toh(hdr->hdr_lba_table));
1.1 christos 410: goto fail_ent;
411: }
412:
1.49 christos 413: if (gpt->verbose > 1)
414: gpt_msg(gpt, "%s GPT at sector %ju",
415: (lba == 1) ? "Pri" : "Sec", (uintmax_t)lba);
1.1 christos 416:
1.49 christos 417: m = map_add(gpt, lba, 1, (lba == 1)
1.61 christos 418: ? MAP_TYPE_PRI_GPT_HDR : MAP_TYPE_SEC_GPT_HDR, hdr, 1);
1.1 christos 419: if (m == NULL)
420: return (-1);
421:
1.59 christos 422: m = map_add(gpt, (off_t)le64toh((uint64_t)hdr->hdr_lba_table),
423: (off_t)blocks,
1.61 christos 424: lba == 1 ? MAP_TYPE_PRI_GPT_TBL : MAP_TYPE_SEC_GPT_TBL, p, 1);
1.1 christos 425: if (m == NULL)
426: return (-1);
427:
428: if (lba != 1)
1.11 christos 429: return (1);
1.1 christos 430:
431: for (i = 0; i < le32toh(hdr->hdr_entries); i++) {
432: ent = (void*)(p + i * le32toh(hdr->hdr_entsz));
1.34 christos 433: if (gpt_uuid_is_nil(ent->ent_type))
1.1 christos 434: continue;
435:
1.59 christos 436: size = (off_t)(le64toh((uint64_t)ent->ent_lba_end) -
437: le64toh((uint64_t)ent->ent_lba_start) + 1LL);
1.49 christos 438: if (gpt->verbose > 2) {
1.34 christos 439: char buf[128];
440: gpt_uuid_snprintf(buf, sizeof(buf), "%s",
441: ent->ent_type);
1.49 christos 442: gpt_msg(gpt, "GPT partition: type=%s, start=%ju, "
443: "size=%ju", buf,
444: (uintmax_t)le64toh(ent->ent_lba_start),
445: (uintmax_t)size);
1.1 christos 446: }
1.59 christos 447: m = map_add(gpt, (off_t)le64toh((uint64_t)ent->ent_lba_start),
1.61 christos 448: size, MAP_TYPE_GPT_PART, ent, 0);
1.1 christos 449: if (m == NULL)
450: return (-1);
451: m->map_index = i + 1;
452: }
1.11 christos 453: return (1);
1.1 christos 454:
455: fail_ent:
456: free(p);
457:
458: fail_hdr:
459: free(hdr);
460: return (0);
461: }
462:
1.49 christos 463: gpt_t
1.69.2.1! bouyer 464: gpt_open(const char *dev, int flags, int verbose, off_t mediasz, u_int secsz,
! 465: time_t timestamp)
1.1 christos 466: {
1.49 christos 467: int mode, found;
1.45 christos 468: off_t devsz;
1.49 christos 469: gpt_t gpt;
1.1 christos 470:
471:
1.49 christos 472: if ((gpt = calloc(1, sizeof(*gpt))) == NULL) {
1.55 jnemeth 473: if (!(flags & GPT_QUIET))
1.49 christos 474: warn("Cannot allocate `%s'", dev);
475: return NULL;
476: }
477: gpt->flags = flags;
478: gpt->verbose = verbose;
479: gpt->mediasz = mediasz;
480: gpt->secsz = secsz;
1.69.2.1! bouyer 481: gpt->timestamp = timestamp;
1.49 christos 482:
483: mode = (gpt->flags & GPT_READONLY) ? O_RDONLY : O_RDWR|O_EXCL;
484:
485: gpt->fd = opendisk(dev, mode, gpt->device_name,
486: sizeof(gpt->device_name), 0);
487: if (gpt->fd == -1) {
488: strlcpy(gpt->device_name, dev, sizeof(gpt->device_name));
489: gpt_warn(gpt, "Cannot open");
490: goto close;
1.42 christos 491: }
1.1 christos 492:
1.49 christos 493: if (fstat(gpt->fd, &gpt->sb) == -1) {
494: gpt_warn(gpt, "Cannot stat");
1.1 christos 495: goto close;
1.42 christos 496: }
1.1 christos 497:
1.49 christos 498: if ((gpt->sb.st_mode & S_IFMT) != S_IFREG) {
499: if (gpt->secsz == 0) {
1.43 jnemeth 500: #ifdef DIOCGSECTORSIZE
1.49 christos 501: if (ioctl(gpt->fd, DIOCGSECTORSIZE, &gpt->secsz) == -1) {
502: gpt_warn(gpt, "Cannot get sector size");
1.44 christos 503: goto close;
504: }
505: #endif
1.49 christos 506: if (gpt->secsz == 0) {
507: gpt_warnx(gpt, "Sector size can't be 0");
1.44 christos 508: goto close;
509: }
1.42 christos 510: }
1.49 christos 511: if (gpt->mediasz == 0) {
1.44 christos 512: #ifdef DIOCGMEDIASIZE
1.49 christos 513: if (ioctl(gpt->fd, DIOCGMEDIASIZE, &gpt->mediasz) == -1) {
514: gpt_warn(gpt, "Cannot get media size");
1.44 christos 515: goto close;
516: }
1.43 jnemeth 517: #endif
1.49 christos 518: if (gpt->mediasz == 0) {
519: gpt_warnx(gpt, "Media size can't be 0");
1.44 christos 520: goto close;
521: }
522: }
1.1 christos 523: } else {
1.62 christos 524: gpt->flags |= GPT_FILE;
1.49 christos 525: if (gpt->secsz == 0)
526: gpt->secsz = 512; /* Fixed size for files. */
527: if (gpt->mediasz == 0) {
528: if (gpt->sb.st_size % gpt->secsz) {
1.36 christos 529: errno = EINVAL;
530: goto close;
531: }
1.49 christos 532: gpt->mediasz = gpt->sb.st_size;
1.1 christos 533: }
1.56 christos 534: gpt->flags |= GPT_NOSYNC;
1.1 christos 535: }
536:
537: /*
538: * We require an absolute minimum of 6 sectors. One for the MBR,
539: * 2 for the GPT header, 2 for the GPT table and one to hold some
540: * user data. Let's catch this extreme border case here so that
541: * we don't have to worry about it later.
542: */
1.49 christos 543: devsz = gpt->mediasz / gpt->secsz;
1.45 christos 544: if (devsz < 6) {
1.62 christos 545: gpt_warnx(gpt, "Need 6 sectors, we have %ju",
1.49 christos 546: (uintmax_t)devsz);
1.1 christos 547: goto close;
548: }
549:
1.49 christos 550: if (gpt->verbose) {
551: gpt_msg(gpt, "mediasize=%ju; sectorsize=%u; blocks=%ju",
552: (uintmax_t)gpt->mediasz, gpt->secsz, (uintmax_t)devsz);
1.42 christos 553: }
1.1 christos 554:
1.57 christos 555: if (map_init(gpt, devsz) == -1)
556: goto close;
1.1 christos 557:
1.49 christos 558: if (gpt_mbr(gpt, 0LL) == -1)
1.1 christos 559: goto close;
1.49 christos 560: if ((found = gpt_gpt(gpt, 1LL, 1)) == -1)
1.1 christos 561: goto close;
1.49 christos 562: if (gpt_gpt(gpt, devsz - 1LL, found) == -1)
1.1 christos 563: goto close;
564:
1.49 christos 565: return gpt;
1.1 christos 566:
567: close:
1.49 christos 568: if (gpt->fd != -1)
569: close(gpt->fd);
570: free(gpt);
571: return NULL;
1.1 christos 572: }
573:
574: void
1.49 christos 575: gpt_close(gpt_t gpt)
1.1 christos 576: {
1.46 christos 577:
1.49 christos 578: if (!(gpt->flags & GPT_MODIFIED))
1.48 christos 579: goto out;
580:
1.49 christos 581: if (!(gpt->flags & GPT_NOSYNC)) {
1.47 christos 582: #ifdef DIOCMWEDGES
583: int bits;
1.49 christos 584: if (ioctl(gpt->fd, DIOCMWEDGES, &bits) == -1)
585: gpt_warn(gpt, "Can't update wedge information");
1.48 christos 586: else
587: goto out;
1.47 christos 588: #endif
589: }
1.62 christos 590: if (!(gpt->flags & GPT_FILE))
591: gpt_msg(gpt, "You need to run \"dkctl %s makewedges\""
592: " for the changes to take effect\n", gpt->device_name);
1.46 christos 593:
1.48 christos 594: out:
1.49 christos 595: close(gpt->fd);
1.1 christos 596: }
597:
1.67 joerg 598: __printflike(2, 0)
1.66 christos 599: static void
600: gpt_vwarnx(gpt_t gpt, const char *fmt, va_list ap, const char *e)
601: {
602: if (gpt && (gpt->flags & GPT_QUIET))
603: return;
604: fprintf(stderr, "%s: ", getprogname());
605: if (gpt)
606: fprintf(stderr, "%s: ", gpt->device_name);
607: vfprintf(stderr, fmt, ap);
608: if (e)
609: fprintf(stderr, " (%s)\n", e);
610: else
611: fputc('\n', stderr);
612: }
613:
1.42 christos 614: void
1.49 christos 615: gpt_warnx(gpt_t gpt, const char *fmt, ...)
1.42 christos 616: {
617: va_list ap;
1.48 christos 618:
1.49 christos 619: va_start(ap, fmt);
1.66 christos 620: gpt_vwarnx(gpt, fmt, ap, NULL);
1.49 christos 621: va_end(ap);
622: }
623:
624: void
625: gpt_warn(gpt_t gpt, const char *fmt, ...)
626: {
627: va_list ap;
628:
629: va_start(ap, fmt);
1.66 christos 630: gpt_vwarnx(gpt, fmt, ap, strerror(errno));
1.49 christos 631: va_end(ap);
632: }
633:
634: void
635: gpt_msg(gpt_t gpt, const char *fmt, ...)
636: {
637: va_list ap;
638:
1.66 christos 639: if (gpt && (gpt->flags & GPT_QUIET))
1.49 christos 640: return;
1.66 christos 641: if (gpt)
642: printf("%s: ", gpt->device_name);
1.42 christos 643: va_start(ap, fmt);
644: vprintf(fmt, ap);
645: va_end(ap);
646: printf("\n");
647: }
1.49 christos 648:
649: struct gpt_hdr *
650: gpt_hdr(gpt_t gpt)
651: {
652: gpt->gpt = map_find(gpt, MAP_TYPE_PRI_GPT_HDR);
653: if (gpt->gpt == NULL) {
654: gpt_warnx(gpt, "No primary GPT header; run create or recover");
655: return NULL;
656: }
657:
658: gpt->tpg = map_find(gpt, MAP_TYPE_SEC_GPT_HDR);
659: if (gpt->tpg == NULL) {
660: gpt_warnx(gpt, "No secondary GPT header; run recover");
661: return NULL;
662: }
663:
664: gpt->tbl = map_find(gpt, MAP_TYPE_PRI_GPT_TBL);
665: gpt->lbt = map_find(gpt, MAP_TYPE_SEC_GPT_TBL);
666: if (gpt->tbl == NULL || gpt->lbt == NULL) {
667: gpt_warnx(gpt, "Corrupt maps, run recover");
668: return NULL;
669: }
670:
671: return gpt->gpt->map_data;
672: }
673:
674: int
675: gpt_write_crc(gpt_t gpt, map_t map, map_t tbl)
676: {
677: struct gpt_hdr *hdr = map->map_data;
678:
679: hdr->hdr_crc_table = htole32(crc32(tbl->map_data,
680: le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz)));
681: hdr->hdr_crc_self = 0;
682: hdr->hdr_crc_self = htole32(crc32(hdr, le32toh(hdr->hdr_size)));
683:
684: if (gpt_write(gpt, map) == -1) {
685: gpt_warn(gpt, "Error writing crc map");
686: return -1;
687: }
688:
689: if (gpt_write(gpt, tbl) == -1) {
690: gpt_warn(gpt, "Error writing crc table");
691: return -1;
692: }
693:
694: return 0;
695: }
696:
697: int
698: gpt_write_primary(gpt_t gpt)
699: {
700: return gpt_write_crc(gpt, gpt->gpt, gpt->tbl);
701: }
702:
703:
704: int
705: gpt_write_backup(gpt_t gpt)
706: {
707: return gpt_write_crc(gpt, gpt->tpg, gpt->lbt);
708: }
709:
710: void
1.68 christos 711: gpt_create_pmbr_part(struct mbr_part *part, off_t last, int active)
1.49 christos 712: {
1.68 christos 713: part->part_flag = active ? 0x80 : 0;
1.49 christos 714: part->part_shd = 0x00;
715: part->part_ssect = 0x02;
716: part->part_scyl = 0x00;
717: part->part_typ = MBR_PTYPE_PMBR;
718: part->part_ehd = 0xfe;
719: part->part_esect = 0xff;
720: part->part_ecyl = 0xff;
721: part->part_start_lo = htole16(1);
722: if (last > 0xffffffff) {
723: part->part_size_lo = htole16(0xffff);
724: part->part_size_hi = htole16(0xffff);
725: } else {
1.59 christos 726: part->part_size_lo = htole16((uint16_t)last);
727: part->part_size_hi = htole16((uint16_t)(last >> 16));
1.49 christos 728: }
729: }
730:
731: struct gpt_ent *
732: gpt_ent(map_t map, map_t tbl, unsigned int i)
733: {
734: struct gpt_hdr *hdr = map->map_data;
735: return (void *)((char *)tbl->map_data + i * le32toh(hdr->hdr_entsz));
736: }
737:
738: struct gpt_ent *
739: gpt_ent_primary(gpt_t gpt, unsigned int i)
740: {
741: return gpt_ent(gpt->gpt, gpt->tbl, i);
742: }
743:
744: struct gpt_ent *
745: gpt_ent_backup(gpt_t gpt, unsigned int i)
746: {
747: return gpt_ent(gpt->tpg, gpt->lbt, i);
748: }
1.50 christos 749:
750: int
751: gpt_usage(const char *prefix, const struct gpt_cmd *cmd)
752: {
753: const char **a = cmd->help;
754: size_t hlen = cmd->hlen;
755: size_t i;
756:
757: if (prefix == NULL) {
758: const char *pname = getprogname();
1.54 christos 759: const char *d1, *d2, *d = " <device>";
1.50 christos 760: int len = (int)strlen(pname);
1.54 christos 761: if (strcmp(pname, "gpt") == 0) {
762: d1 = "";
763: d2 = d;
764: } else {
765: d2 = "";
766: d1 = d;
767: }
768: fprintf(stderr, "Usage: %s%s %s %s%s\n", pname,
769: d1, cmd->name, a[0], d2);
1.50 christos 770: for (i = 1; i < hlen; i++) {
771: fprintf(stderr,
1.54 christos 772: " %*s%s %s %s%s\n", len, "",
773: d1, cmd->name, a[i], d2);
1.50 christos 774: }
775: } else {
776: for (i = 0; i < hlen; i++)
777: fprintf(stderr, "%s%s %s\n", prefix, cmd->name, a[i]);
778: }
779: return -1;
780: }
1.51 christos 781:
782: off_t
783: gpt_last(gpt_t gpt)
784: {
785: return gpt->mediasz / gpt->secsz - 1LL;
786: }
787:
1.59 christos 788: off_t
1.51 christos 789: gpt_create(gpt_t gpt, off_t last, u_int parts, int primary_only)
790: {
791: off_t blocks;
792: map_t map;
793: struct gpt_hdr *hdr;
794: struct gpt_ent *ent;
795: unsigned int i;
796: void *p;
797:
798: if (map_find(gpt, MAP_TYPE_PRI_GPT_HDR) != NULL ||
799: map_find(gpt, MAP_TYPE_SEC_GPT_HDR) != NULL) {
1.69 christos 800: gpt_warnx(gpt, "Device already contains a GPT, "
801: "destroy it first");
1.51 christos 802: return -1;
803: }
804:
805: /* Get the amount of free space after the MBR */
806: blocks = map_free(gpt, 1LL, 0LL);
807: if (blocks == 0LL) {
808: gpt_warnx(gpt, "No room for the GPT header");
809: return -1;
810: }
811:
812: /* Don't create more than parts entries. */
813: if ((uint64_t)(blocks - 1) * gpt->secsz >
814: parts * sizeof(struct gpt_ent)) {
1.59 christos 815: blocks = (off_t)((parts * sizeof(struct gpt_ent)) / gpt->secsz);
1.51 christos 816: if ((parts * sizeof(struct gpt_ent)) % gpt->secsz)
817: blocks++;
818: blocks++; /* Don't forget the header itself */
819: }
820:
821: /* Never cross the median of the device. */
822: if ((blocks + 1LL) > ((last + 1LL) >> 1))
823: blocks = ((last + 1LL) >> 1) - 1LL;
824:
825: /*
826: * Get the amount of free space at the end of the device and
827: * calculate the size for the GPT structures.
828: */
829: map = map_last(gpt);
830: if (map->map_type != MAP_TYPE_UNUSED) {
831: gpt_warnx(gpt, "No room for the backup header");
832: return -1;
833: }
834:
835: if (map->map_size < blocks)
836: blocks = map->map_size;
837: if (blocks == 1LL) {
838: gpt_warnx(gpt, "No room for the GPT table");
839: return -1;
840: }
841:
842: blocks--; /* Number of blocks in the GPT table. */
843:
1.63 christos 844: if (gpt_add_hdr(gpt, MAP_TYPE_PRI_GPT_HDR, 1) == -1)
1.51 christos 845: return -1;
846:
1.59 christos 847: if ((p = calloc((size_t)blocks, gpt->secsz)) == NULL) {
1.51 christos 848: gpt_warnx(gpt, "Can't allocate the primary GPT table");
849: return -1;
850: }
851: if ((gpt->tbl = map_add(gpt, 2LL, blocks,
1.61 christos 852: MAP_TYPE_PRI_GPT_TBL, p, 1)) == NULL) {
1.51 christos 853: free(p);
854: gpt_warnx(gpt, "Can't add the primary GPT table");
855: return -1;
856: }
857:
858: hdr = gpt->gpt->map_data;
859: memcpy(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig));
860:
861: /*
862: * XXX struct gpt_hdr is not a multiple of 8 bytes in size and thus
863: * contains padding we must not include in the size.
864: */
865: hdr->hdr_revision = htole32(GPT_HDR_REVISION);
866: hdr->hdr_size = htole32(GPT_HDR_SIZE);
1.59 christos 867: hdr->hdr_lba_self = htole64((uint64_t)gpt->gpt->map_start);
868: hdr->hdr_lba_alt = htole64((uint64_t)last);
869: hdr->hdr_lba_start = htole64((uint64_t)(gpt->tbl->map_start + blocks));
870: hdr->hdr_lba_end = htole64((uint64_t)(last - blocks - 1LL));
1.52 christos 871: if (gpt_uuid_generate(gpt, hdr->hdr_guid) == -1)
872: return -1;
1.59 christos 873: hdr->hdr_lba_table = htole64((uint64_t)(gpt->tbl->map_start));
874: hdr->hdr_entries = htole32((uint32_t)(((uint64_t)blocks * gpt->secsz) /
875: sizeof(struct gpt_ent)));
1.51 christos 876: if (le32toh(hdr->hdr_entries) > parts)
877: hdr->hdr_entries = htole32(parts);
878: hdr->hdr_entsz = htole32(sizeof(struct gpt_ent));
879:
880: ent = gpt->tbl->map_data;
881: for (i = 0; i < le32toh(hdr->hdr_entries); i++) {
1.52 christos 882: if (gpt_uuid_generate(gpt, ent[i].ent_guid) == -1)
883: return -1;
1.51 christos 884: }
885:
886: /*
887: * Create backup GPT if the user didn't suppress it.
888: */
889: if (primary_only)
890: return last;
891:
1.63 christos 892: if (gpt_add_hdr(gpt, MAP_TYPE_SEC_GPT_HDR, last) == -1)
1.51 christos 893: return -1;
894:
895: if ((gpt->lbt = map_add(gpt, last - blocks, blocks,
1.61 christos 896: MAP_TYPE_SEC_GPT_TBL, gpt->tbl->map_data, 0)) == NULL) {
1.51 christos 897: gpt_warnx(gpt, "Can't add the secondary GPT table");
898: return -1;
899: }
900:
901: memcpy(gpt->tpg->map_data, gpt->gpt->map_data, gpt->secsz);
902:
903: hdr = gpt->tpg->map_data;
1.59 christos 904: hdr->hdr_lba_self = htole64((uint64_t)gpt->tpg->map_start);
905: hdr->hdr_lba_alt = htole64((uint64_t)gpt->gpt->map_start);
906: hdr->hdr_lba_table = htole64((uint64_t)gpt->lbt->map_start);
1.51 christos 907: return last;
908: }
909:
1.52 christos 910: static int
911: gpt_size_get(gpt_t gpt, off_t *size)
912: {
913: off_t sectors;
914: int64_t human_num;
915: char *p;
916:
917: if (*size > 0)
918: return -1;
919: sectors = strtoll(optarg, &p, 10);
920: if (sectors < 1)
921: return -1;
922: if (*p == '\0' || ((*p == 's' || *p == 'S') && p[1] == '\0')) {
923: *size = sectors * gpt->secsz;
924: return 0;
925: }
926: if ((*p == 'b' || *p == 'B') && p[1] == '\0') {
927: *size = sectors;
928: return 0;
929: }
930: if (dehumanize_number(optarg, &human_num) < 0)
931: return -1;
932: *size = human_num;
933: return 0;
934: }
935:
1.51 christos 936: int
1.66 christos 937: gpt_human_get(gpt_t gpt, off_t *human)
1.51 christos 938: {
939: int64_t human_num;
940:
1.66 christos 941: if (*human > 0) {
942: gpt_warn(gpt, "Already set to %jd new `%s'", (intmax_t)*human,
943: optarg);
1.52 christos 944: return -1;
1.66 christos 945: }
946: if (dehumanize_number(optarg, &human_num) < 0) {
947: gpt_warn(gpt, "Bad number `%s'", optarg);
1.52 christos 948: return -1;
1.66 christos 949: }
1.52 christos 950: *human = human_num;
1.66 christos 951: if (*human < 1) {
952: gpt_warn(gpt, "Number `%s' < 1", optarg);
1.52 christos 953: return -1;
1.66 christos 954: }
1.52 christos 955: return 0;
956: }
957:
958: int
959: gpt_add_find(gpt_t gpt, struct gpt_find *find, int ch)
960: {
1.51 christos 961: switch (ch) {
962: case 'a':
1.66 christos 963: if (find->all > 0) {
964: gpt_warn(gpt, "-a is already set");
1.51 christos 965: return -1;
1.66 christos 966: }
1.51 christos 967: find->all = 1;
968: break;
969: case 'b':
1.66 christos 970: if (gpt_human_get(gpt, &find->block) == -1)
1.51 christos 971: return -1;
972: break;
973: case 'i':
1.66 christos 974: if (gpt_uint_get(gpt, &find->entry) == -1)
1.51 christos 975: return -1;
976: break;
977: case 'L':
1.52 christos 978: if (gpt_name_get(gpt, &find->label) == -1)
1.51 christos 979: return -1;
980: break;
981: case 's':
1.52 christos 982: if (gpt_size_get(gpt, &find->size) == -1)
1.51 christos 983: return -1;
984: break;
985: case 't':
986: if (!gpt_uuid_is_nil(find->type))
987: return -1;
988: if (gpt_uuid_parse(optarg, find->type) != 0)
989: return -1;
990: break;
991: default:
1.66 christos 992: gpt_warn(gpt, "Unknown find option `%c'", ch);
1.51 christos 993: return -1;
994: }
995: return 0;
996: }
997:
998: int
999: gpt_change_ent(gpt_t gpt, const struct gpt_find *find,
1000: void (*cfn)(struct gpt_ent *, void *), void *v)
1001: {
1002: map_t m;
1003: struct gpt_hdr *hdr;
1004: struct gpt_ent *ent;
1005: unsigned int i;
1.53 christos 1006: uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
1.51 christos 1007:
1008: if (!find->all ^
1009: (find->block > 0 || find->entry > 0 || find->label != NULL
1010: || find->size > 0 || !gpt_uuid_is_nil(find->type)))
1011: return -1;
1012:
1013: if ((hdr = gpt_hdr(gpt)) == NULL)
1014: return -1;
1015:
1016: /* Relabel all matching entries in the map. */
1017: for (m = map_first(gpt); m != NULL; m = m->map_next) {
1018: if (m->map_type != MAP_TYPE_GPT_PART || m->map_index < 1)
1019: continue;
1020: if (find->entry > 0 && find->entry != m->map_index)
1021: continue;
1022: if (find->block > 0 && find->block != m->map_start)
1023: continue;
1024: if (find->size > 0 && find->size != m->map_size)
1025: continue;
1026:
1027: i = m->map_index - 1;
1028:
1029: ent = gpt_ent_primary(gpt, i);
1.53 christos 1030: if (find->label != NULL) {
1031: utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
1032: if (strcmp((char *)find->label, (char *)utfbuf) == 0)
1.51 christos 1033: continue;
1.53 christos 1034: }
1.51 christos 1035:
1036: if (!gpt_uuid_is_nil(find->type) &&
1037: !gpt_uuid_equal(find->type, ent->ent_type))
1038: continue;
1039:
1040: /* Change the primary entry. */
1041: (*cfn)(ent, v);
1042:
1043: if (gpt_write_primary(gpt) == -1)
1044: return -1;
1045:
1046: ent = gpt_ent_backup(gpt, i);
1047: /* Change the secondary entry. */
1048: (*cfn)(ent, v);
1049:
1050: if (gpt_write_backup(gpt) == -1)
1051: return -1;
1052:
1053: gpt_msg(gpt, "Partition %d %s", m->map_index, find->msg);
1054: }
1055: return 0;
1056: }
1057:
1058: int
1059: gpt_add_ais(gpt_t gpt, off_t *alignment, u_int *entry, off_t *size, int ch)
1060: {
1061: switch (ch) {
1062: case 'a':
1.66 christos 1063: if (gpt_human_get(gpt, alignment) == -1)
1.51 christos 1064: return -1;
1065: return 0;
1066: case 'i':
1.66 christos 1067: if (gpt_uint_get(gpt, entry) == -1)
1.51 christos 1068: return -1;
1069: return 0;
1070: case 's':
1.52 christos 1071: if (gpt_size_get(gpt, size) == -1)
1.51 christos 1072: return -1;
1073: return 0;
1074: default:
1.66 christos 1075: gpt_warn(gpt, "Unknown alignment/index/size option `%c'", ch);
1.51 christos 1076: return -1;
1077: }
1078: }
1079:
1080: off_t
1081: gpt_check_ais(gpt_t gpt, off_t alignment, u_int entry, off_t size)
1082: {
1083: if (entry == 0) {
1084: gpt_warnx(gpt, "Entry not specified");
1085: return -1;
1086: }
1087: if (alignment % gpt->secsz != 0) {
1088: gpt_warnx(gpt, "Alignment (%#jx) must be a multiple of "
1089: "sector size (%#x)", (uintmax_t)alignment, gpt->secsz);
1090: return -1;
1091: }
1092:
1093: if (size % gpt->secsz != 0) {
1094: gpt_warnx(gpt, "Size (%#jx) must be a multiple of "
1095: "sector size (%#x)", (uintmax_t)size, gpt->secsz);
1096: return -1;
1097: }
1098: if (size > 0)
1099: return size / gpt->secsz;
1100: return 0;
1101: }
1.64 christos 1102:
1103: static const struct nvd {
1104: const char *name;
1105: uint64_t mask;
1106: const char *description;
1107: } gpt_attr[] = {
1108: {
1109: "biosboot",
1110: GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE,
1111: "Legacy BIOS boot partition",
1112: },
1113: {
1114: "bootme",
1115: GPT_ENT_ATTR_BOOTME,
1116: "Bootable partition",
1117: },
1118: {
1119: "bootfailed",
1120: GPT_ENT_ATTR_BOOTFAILED,
1121: "Partition that marked bootonce failed to boot",
1122: },
1123: {
1124: "bootonce",
1125: GPT_ENT_ATTR_BOOTONCE,
1126: "Attempt to boot this partition only once",
1127: },
1128: {
1129: "noblockio",
1130: GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL,
1131: "UEFI won't recognize file system for block I/O",
1132: },
1133: {
1134: "required",
1135: GPT_ENT_ATTR_REQUIRED_PARTITION,
1136: "Partition required for platform to function",
1137: },
1138: };
1139:
1.51 christos 1140: int
1.64 christos 1141: gpt_attr_get(gpt_t gpt, uint64_t *attributes)
1142: {
1143: size_t i;
1144: int rv = 0;
1145: char *ptr;
1146:
1147: *attributes = 0;
1148:
1149: for (ptr = strtok(optarg, ","); ptr; ptr = strtok(NULL, ",")) {
1150: for (i = 0; i < __arraycount(gpt_attr); i++)
1151: if (strcmp(gpt_attr[i].name, ptr) == 0)
1152: break;
1153: if (i == __arraycount(gpt_attr)) {
1154: gpt_warnx(gpt, "Unregognized attribute `%s'", ptr);
1155: rv = -1;
1156: } else
1157: *attributes |= gpt_attr[i].mask;
1158: }
1159: return rv;
1160: }
1161:
1162: void
1163: gpt_attr_help(const char *prefix)
1.51 christos 1164: {
1.64 christos 1165: size_t i;
1166:
1167: for (i = 0; i < __arraycount(gpt_attr); i++)
1168: printf("%s%10.10s\t%s\n", prefix, gpt_attr[i].name,
1169: gpt_attr[i].description);
1170: }
1171:
1172: const char *
1173: gpt_attr_list(char *buf, size_t len, uint64_t attributes)
1174: {
1175: size_t i;
1176: strlcpy(buf, "", len);
1177:
1178: for (i = 0; i < __arraycount(gpt_attr); i++)
1179: if (attributes & gpt_attr[i].mask) {
1.65 jnemeth 1180: strlcat(buf, buf[0] ? ", " : "", len);
1.64 christos 1181: strlcat(buf, gpt_attr[i].name, len);
1182: }
1183: return buf;
1.51 christos 1184: }
1.64 christos 1185:
1.51 christos 1186: int
1187: gpt_attr_update(gpt_t gpt, u_int entry, uint64_t set, uint64_t clr)
1188: {
1189: struct gpt_hdr *hdr;
1190: struct gpt_ent *ent;
1191: unsigned int i;
1192:
1.66 christos 1193: if (entry == 0 || (set == 0 && clr == 0)) {
1194: gpt_warnx(gpt, "Nothing to set");
1.51 christos 1195: return -1;
1.66 christos 1196: }
1.51 christos 1197:
1198: if ((hdr = gpt_hdr(gpt)) == NULL)
1199: return -1;
1200:
1201: if (entry > le32toh(hdr->hdr_entries)) {
1202: gpt_warnx(gpt, "Index %u out of range (%u max)",
1203: entry, le32toh(hdr->hdr_entries));
1204: return -1;
1205: }
1206:
1207: i = entry - 1;
1208: ent = gpt_ent_primary(gpt, i);
1209: if (gpt_uuid_is_nil(ent->ent_type)) {
1210: gpt_warnx(gpt, "Entry at index %u is unused", entry);
1211: return -1;
1212: }
1213:
1214: ent->ent_attr &= ~clr;
1215: ent->ent_attr |= set;
1216:
1217: if (gpt_write_primary(gpt) == -1)
1218: return -1;
1219:
1220: ent = gpt_ent_backup(gpt, i);
1221: ent->ent_attr &= ~clr;
1222: ent->ent_attr |= set;
1223:
1224: if (gpt_write_backup(gpt) == -1)
1225: return -1;
1226: gpt_msg(gpt, "Partition %d attributes updated", entry);
1227: return 0;
1228: }
1229:
1230: int
1.66 christos 1231: gpt_uint_get(gpt_t gpt, u_int *entry)
1.51 christos 1232: {
1233: char *p;
1234: if (*entry > 0)
1235: return -1;
1.59 christos 1236: *entry = (u_int)strtoul(optarg, &p, 10);
1.66 christos 1237: if (*p != 0 || *entry < 1) {
1238: gpt_warn(gpt, "Bad number `%s'", optarg);
1.51 christos 1239: return -1;
1.66 christos 1240: }
1.51 christos 1241: return 0;
1242: }
1.52 christos 1243: int
1244: gpt_uuid_get(gpt_t gpt, gpt_uuid_t *uuid)
1245: {
1246: if (!gpt_uuid_is_nil(*uuid))
1247: return -1;
1248: if (gpt_uuid_parse(optarg, *uuid) != 0) {
1249: gpt_warn(gpt, "Can't parse uuid");
1250: return -1;
1251: }
1252: return 0;
1253: }
1254:
1255: int
1256: gpt_name_get(gpt_t gpt, void *v)
1257: {
1258: char **name = v;
1259: if (*name != NULL)
1260: return -1;
1261: *name = strdup(optarg);
1262: if (*name == NULL) {
1263: gpt_warn(gpt, "Can't copy string");
1264: return -1;
1265: }
1266: return 0;
1267: }
1.59 christos 1268:
1269: void
1270: gpt_show_num(const char *prompt, uintmax_t num)
1271: {
1272: #ifdef HN_AUTOSCALE
1273: char human_num[5];
1274: if (humanize_number(human_num, 5, (int64_t)num ,
1275: "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0)
1276: human_num[0] = '\0';
1277: #endif
1278: printf("%s: %ju", prompt, num);
1279: #ifdef HN_AUTOSCALE
1280: if (human_num[0] != '\0')
1.60 christos 1281: printf(" (%s)", human_num);
1.59 christos 1282: #endif
1283: printf("\n");
1284: }
1.63 christos 1285:
1286: int
1287: gpt_add_hdr(gpt_t gpt, int type, off_t loc)
1288: {
1289: void *p;
1290: map_t *t;
1291: const char *msg;
1292:
1293: switch (type) {
1294: case MAP_TYPE_PRI_GPT_HDR:
1295: t = &gpt->gpt;
1296: msg = "primary";
1297: break;
1298: case MAP_TYPE_SEC_GPT_HDR:
1299: t = &gpt->tpg;
1300: msg = "secondary";
1301: break;
1302: default:
1303: gpt_warnx(gpt, "Unknown GPT header type %d", type);
1304: return -1;
1305: }
1306:
1307: if ((p = calloc(1, gpt->secsz)) == NULL) {
1308: gpt_warn(gpt, "Error allocating %s GPT header", msg);
1309: return -1;
1310: }
1311:
1312: *t = map_add(gpt, loc, 1LL, type, p, 1);
1313: if (*t == NULL) {
1314: gpt_warn(gpt, "Error adding %s GPT header", msg);
1315: free(p);
1316: return -1;
1317: }
1318: return 0;
1319: }
CVSweb <webmaster@jp.NetBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to gpt.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / sbin / gpt