Annotation of src/sbin/gpt/gpt.c, Revision 1.74.4.1
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 $");
1.2 christos 36: #endif
37: #ifdef __RCSID
1.74.4.1! christos 38: __RCSID("$NetBSD: gpt.c,v 1.77 2019/01/27 13:16:05 martin 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:
1.72 christos 124: /*
125: * Produce a NUL-terminated utf-8 string from the non-NUL-terminated
126: * utf16 string.
127: */
1.53 christos 128: void
1.72 christos 129: utf16_to_utf8(const uint16_t *s16, size_t s16len, uint8_t *s8, size_t s8len)
1.1 christos 130: {
1.72 christos 131: size_t s8idx, s16idx;
1.1 christos 132: uint32_t utfchar;
133: unsigned int c;
134:
1.72 christos 135: for (s16idx = 0; s16idx < s16len; s16idx++)
136: if (s16[s16idx] == 0)
137: break;
138:
139: s16len = s16idx;
1.1 christos 140: s8idx = s16idx = 0;
141: while (s16idx < s16len) {
142: utfchar = le16toh(s16[s16idx++]);
143: if ((utfchar & 0xf800) == 0xd800) {
144: c = le16toh(s16[s16idx]);
145: if ((utfchar & 0x400) != 0 || (c & 0xfc00) != 0xdc00)
146: utfchar = 0xfffd;
147: else
148: s16idx++;
149: }
150: if (utfchar < 0x80) {
1.53 christos 151: if (s8idx + 1 >= s8len)
152: break;
1.59 christos 153: s8[s8idx++] = (uint8_t)utfchar;
1.1 christos 154: } else if (utfchar < 0x800) {
1.53 christos 155: if (s8idx + 2 >= s8len)
156: break;
1.59 christos 157: s8[s8idx++] = (uint8_t)(0xc0 | (utfchar >> 6));
158: s8[s8idx++] = (uint8_t)(0x80 | (utfchar & 0x3f));
1.1 christos 159: } else if (utfchar < 0x10000) {
1.53 christos 160: if (s8idx + 3 >= s8len)
161: break;
1.59 christos 162: s8[s8idx++] = (uint8_t)(0xe0 | (utfchar >> 12));
163: s8[s8idx++] = (uint8_t)(0x80 | ((utfchar >> 6) & 0x3f));
164: s8[s8idx++] = (uint8_t)(0x80 | (utfchar & 0x3f));
1.1 christos 165: } else if (utfchar < 0x200000) {
1.53 christos 166: if (s8idx + 4 >= s8len)
167: break;
1.59 christos 168: s8[s8idx++] = (uint8_t)(0xf0 | (utfchar >> 18));
169: s8[s8idx++] = (uint8_t)(0x80 | ((utfchar >> 12) & 0x3f));
170: s8[s8idx++] = (uint8_t)(0x80 | ((utfchar >> 6) & 0x3f));
171: s8[s8idx++] = (uint8_t)(0x80 | (utfchar & 0x3f));
1.1 christos 172: }
173: }
1.53 christos 174: s8[s8idx] = 0;
1.1 christos 175: }
176:
1.72 christos 177: /*
178: * Produce a non-NUL-terminated utf-16 string from the NUL-terminated
179: * utf8 string.
180: */
1.1 christos 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. */
1.17 matt 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)
1.59 christos 224: utfbytes = (u_int)~0;
1.1 christos 225: }
226: if (utfbytes == 0) {
227: if (utfchar >= 0x10000 && s16idx + 2 >= s16len)
1.17 matt 228: utfchar = 0xfffd;
1.1 christos 229: if (utfchar >= 0x10000) {
1.59 christos 230: s16[s16idx++] = htole16((uint16_t)
231: (0xd800 | ((utfchar>>10) - 0x40)));
232: s16[s16idx++] = htole16((uint16_t)
233: (0xdc00 | (utfchar & 0x3ff)));
1.1 christos 234: } else
1.59 christos 235: s16[s16idx++] = htole16((uint16_t)utfchar);
1.1 christos 236: if (s16idx == s16len) {
237: return;
238: }
239: }
240: } while (c != 0);
1.72 christos 241:
242: while (s16idx < s16len)
243: s16[s16idx++] = 0;
1.1 christos 244: }
245:
1.49 christos 246: void *
247: gpt_read(gpt_t gpt, off_t lba, size_t count)
1.1 christos 248: {
249: off_t ofs;
250: void *buf;
251:
1.49 christos 252: count *= gpt->secsz;
1.1 christos 253: buf = malloc(count);
254: if (buf == NULL)
1.49 christos 255: return NULL;
1.1 christos 256:
1.49 christos 257: ofs = lba * gpt->secsz;
258: if (lseek(gpt->fd, ofs, SEEK_SET) == ofs &&
259: read(gpt->fd, buf, count) == (ssize_t)count)
260: return buf;
1.1 christos 261:
262: free(buf);
1.49 christos 263: return NULL;
1.1 christos 264: }
265:
266: int
1.49 christos 267: gpt_write(gpt_t gpt, map_t map)
1.1 christos 268: {
269: off_t ofs;
270: size_t count;
271:
1.59 christos 272: count = (size_t)(map->map_size * gpt->secsz);
1.49 christos 273: ofs = map->map_start * gpt->secsz;
274: if (lseek(gpt->fd, ofs, SEEK_SET) != ofs ||
275: write(gpt->fd, map->map_data, count) != (ssize_t)count)
1.46 christos 276: return -1;
1.49 christos 277: gpt->flags |= GPT_MODIFIED;
1.46 christos 278: return 0;
1.1 christos 279: }
280:
281: static int
1.74.4.1! christos 282: gpt_mbr(gpt_t gpt, off_t lba, unsigned int *next_index, off_t ext_offset)
1.1 christos 283: {
284: struct mbr *mbr;
1.49 christos 285: map_t m, p;
1.1 christos 286: off_t size, start;
287: unsigned int i, pmbr;
288:
1.49 christos 289: mbr = gpt_read(gpt, lba, 1);
1.42 christos 290: if (mbr == NULL) {
1.49 christos 291: gpt_warn(gpt, "Read failed");
292: return -1;
1.42 christos 293: }
1.1 christos 294:
295: if (mbr->mbr_sig != htole16(MBR_SIG)) {
1.49 christos 296: if (gpt->verbose)
297: gpt_msg(gpt,
298: "MBR not found at sector %ju", (uintmax_t)lba);
1.1 christos 299: free(mbr);
1.49 christos 300: return 0;
1.1 christos 301: }
302:
303: /*
304: * Differentiate between a regular MBR and a PMBR. This is more
305: * convenient in general. A PMBR is one with a single partition
306: * of type 0xee.
307: */
308: pmbr = 0;
309: for (i = 0; i < 4; i++) {
1.25 jakllsch 310: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_UNUSED)
1.1 christos 311: continue;
1.25 jakllsch 312: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_PMBR)
1.1 christos 313: pmbr++;
314: else
315: break;
316: }
317: if (pmbr && i == 4 && lba == 0) {
1.49 christos 318: if (pmbr != 1)
319: gpt_warnx(gpt, "Suspicious PMBR at sector %ju",
320: (uintmax_t)lba);
321: else if (gpt->verbose > 1)
322: gpt_msg(gpt, "PMBR at sector %ju", (uintmax_t)lba);
1.61 christos 323: p = map_add(gpt, lba, 1LL, MAP_TYPE_PMBR, mbr, 1);
1.49 christos 324: goto out;
325: }
326: if (pmbr)
327: gpt_warnx(gpt, "Suspicious MBR at sector %ju", (uintmax_t)lba);
328: else if (gpt->verbose > 1)
329: gpt_msg(gpt, "MBR at sector %ju", (uintmax_t)lba);
1.1 christos 330:
1.61 christos 331: p = map_add(gpt, lba, 1LL, MAP_TYPE_MBR, mbr, 1);
1.1 christos 332: if (p == NULL)
1.49 christos 333: goto out;
334:
1.1 christos 335: for (i = 0; i < 4; i++) {
1.25 jakllsch 336: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_UNUSED ||
337: mbr->mbr_part[i].part_typ == MBR_PTYPE_PMBR)
1.1 christos 338: continue;
339: start = le16toh(mbr->mbr_part[i].part_start_hi);
340: start = (start << 16) + le16toh(mbr->mbr_part[i].part_start_lo);
341: size = le16toh(mbr->mbr_part[i].part_size_hi);
342: size = (size << 16) + le16toh(mbr->mbr_part[i].part_size_lo);
343: if (start == 0 && size == 0) {
1.49 christos 344: gpt_warnx(gpt, "Malformed MBR at sector %ju",
345: (uintmax_t)lba);
1.1 christos 346: continue;
347: }
1.49 christos 348: if (gpt->verbose > 2)
1.68 christos 349: gpt_msg(gpt, "MBR part: flag=%#x type=%d, start=%ju, "
350: "size=%ju", mbr->mbr_part[i].part_flag,
1.42 christos 351: mbr->mbr_part[i].part_typ,
352: (uintmax_t)start, (uintmax_t)size);
1.74.4.1! christos 353: if (!MBR_IS_EXTENDED(mbr->mbr_part[i].part_typ)) {
! 354: start += lba;
1.61 christos 355: m = map_add(gpt, start, size, MAP_TYPE_MBR_PART, p, 0);
1.1 christos 356: if (m == NULL)
1.49 christos 357: return -1;
1.74.4.1! christos 358: m->map_index = *next_index;
! 359: (*next_index)++;
1.1 christos 360: } else {
1.74.4.1! christos 361: start += ext_offset;
! 362: if (gpt_mbr(gpt, start, next_index,
! 363: ext_offset ? ext_offset : start) == -1)
1.49 christos 364: return -1;
1.1 christos 365: }
366: }
1.49 christos 367: return 0;
368: out:
369: if (p == NULL) {
370: free(mbr);
371: return -1;
372: }
373: return 0;
1.1 christos 374: }
375:
1.29 jnemeth 376: int
1.49 christos 377: gpt_gpt(gpt_t gpt, off_t lba, int found)
1.1 christos 378: {
379: off_t size;
380: struct gpt_ent *ent;
381: struct gpt_hdr *hdr;
1.34 christos 382: char *p;
1.49 christos 383: map_t m;
1.1 christos 384: size_t blocks, tblsz;
385: unsigned int i;
386: uint32_t crc;
387:
1.49 christos 388: hdr = gpt_read(gpt, lba, 1);
1.1 christos 389: if (hdr == NULL)
1.49 christos 390: return -1;
1.1 christos 391:
392: if (memcmp(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig)))
393: goto fail_hdr;
394:
395: crc = le32toh(hdr->hdr_crc_self);
396: hdr->hdr_crc_self = 0;
397: if (crc32(hdr, le32toh(hdr->hdr_size)) != crc) {
1.49 christos 398: if (gpt->verbose)
399: gpt_msg(gpt, "Bad CRC in GPT header at sector %ju",
400: (uintmax_t)lba);
1.1 christos 401: goto fail_hdr;
402: }
403:
404: tblsz = le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz);
1.49 christos 405: blocks = tblsz / gpt->secsz + ((tblsz % gpt->secsz) ? 1 : 0);
1.1 christos 406:
407: /* Use generic pointer to deal with hdr->hdr_entsz != sizeof(*ent). */
1.59 christos 408: p = gpt_read(gpt, (off_t)le64toh((uint64_t)hdr->hdr_lba_table), blocks);
1.11 christos 409: if (p == NULL) {
410: if (found) {
1.49 christos 411: if (gpt->verbose)
412: gpt_msg(gpt,
413: "Cannot read LBA table at sector %ju",
414: (uintmax_t)le64toh(hdr->hdr_lba_table));
415: return -1;
1.11 christos 416: }
417: goto fail_hdr;
418: }
1.1 christos 419:
420: if (crc32(p, tblsz) != le32toh(hdr->hdr_crc_table)) {
1.49 christos 421: if (gpt->verbose)
422: gpt_msg(gpt, "Bad CRC in GPT table at sector %ju",
423: (uintmax_t)le64toh(hdr->hdr_lba_table));
1.1 christos 424: goto fail_ent;
425: }
426:
1.49 christos 427: if (gpt->verbose > 1)
428: gpt_msg(gpt, "%s GPT at sector %ju",
429: (lba == 1) ? "Pri" : "Sec", (uintmax_t)lba);
1.1 christos 430:
1.49 christos 431: m = map_add(gpt, lba, 1, (lba == 1)
1.61 christos 432: ? MAP_TYPE_PRI_GPT_HDR : MAP_TYPE_SEC_GPT_HDR, hdr, 1);
1.1 christos 433: if (m == NULL)
434: return (-1);
435:
1.59 christos 436: m = map_add(gpt, (off_t)le64toh((uint64_t)hdr->hdr_lba_table),
437: (off_t)blocks,
1.61 christos 438: lba == 1 ? MAP_TYPE_PRI_GPT_TBL : MAP_TYPE_SEC_GPT_TBL, p, 1);
1.1 christos 439: if (m == NULL)
440: return (-1);
441:
442: if (lba != 1)
1.11 christos 443: return (1);
1.1 christos 444:
445: for (i = 0; i < le32toh(hdr->hdr_entries); i++) {
446: ent = (void*)(p + i * le32toh(hdr->hdr_entsz));
1.34 christos 447: if (gpt_uuid_is_nil(ent->ent_type))
1.1 christos 448: continue;
449:
1.59 christos 450: size = (off_t)(le64toh((uint64_t)ent->ent_lba_end) -
451: le64toh((uint64_t)ent->ent_lba_start) + 1LL);
1.49 christos 452: if (gpt->verbose > 2) {
1.34 christos 453: char buf[128];
454: gpt_uuid_snprintf(buf, sizeof(buf), "%s",
455: ent->ent_type);
1.49 christos 456: gpt_msg(gpt, "GPT partition: type=%s, start=%ju, "
457: "size=%ju", buf,
458: (uintmax_t)le64toh(ent->ent_lba_start),
459: (uintmax_t)size);
1.1 christos 460: }
1.59 christos 461: m = map_add(gpt, (off_t)le64toh((uint64_t)ent->ent_lba_start),
1.61 christos 462: size, MAP_TYPE_GPT_PART, ent, 0);
1.1 christos 463: if (m == NULL)
464: return (-1);
465: m->map_index = i + 1;
466: }
1.11 christos 467: return (1);
1.1 christos 468:
469: fail_ent:
470: free(p);
471:
472: fail_hdr:
473: free(hdr);
474: return (0);
475: }
476:
1.49 christos 477: gpt_t
1.70 christos 478: gpt_open(const char *dev, int flags, int verbose, off_t mediasz, u_int secsz,
479: time_t timestamp)
1.1 christos 480: {
1.49 christos 481: int mode, found;
1.45 christos 482: off_t devsz;
1.49 christos 483: gpt_t gpt;
1.74.4.1! christos 484: unsigned int index;
1.1 christos 485:
1.49 christos 486: if ((gpt = calloc(1, sizeof(*gpt))) == NULL) {
1.55 jnemeth 487: if (!(flags & GPT_QUIET))
1.49 christos 488: warn("Cannot allocate `%s'", dev);
489: return NULL;
490: }
491: gpt->flags = flags;
492: gpt->verbose = verbose;
493: gpt->mediasz = mediasz;
494: gpt->secsz = secsz;
1.70 christos 495: gpt->timestamp = timestamp;
1.49 christos 496:
497: mode = (gpt->flags & GPT_READONLY) ? O_RDONLY : O_RDWR|O_EXCL;
498:
499: gpt->fd = opendisk(dev, mode, gpt->device_name,
500: sizeof(gpt->device_name), 0);
501: if (gpt->fd == -1) {
502: strlcpy(gpt->device_name, dev, sizeof(gpt->device_name));
503: gpt_warn(gpt, "Cannot open");
504: goto close;
1.42 christos 505: }
1.1 christos 506:
1.49 christos 507: if (fstat(gpt->fd, &gpt->sb) == -1) {
508: gpt_warn(gpt, "Cannot stat");
1.1 christos 509: goto close;
1.42 christos 510: }
1.1 christos 511:
1.49 christos 512: if ((gpt->sb.st_mode & S_IFMT) != S_IFREG) {
513: if (gpt->secsz == 0) {
1.43 jnemeth 514: #ifdef DIOCGSECTORSIZE
1.49 christos 515: if (ioctl(gpt->fd, DIOCGSECTORSIZE, &gpt->secsz) == -1) {
516: gpt_warn(gpt, "Cannot get sector size");
1.44 christos 517: goto close;
518: }
519: #endif
1.49 christos 520: if (gpt->secsz == 0) {
521: gpt_warnx(gpt, "Sector size can't be 0");
1.44 christos 522: goto close;
523: }
1.42 christos 524: }
1.49 christos 525: if (gpt->mediasz == 0) {
1.44 christos 526: #ifdef DIOCGMEDIASIZE
1.49 christos 527: if (ioctl(gpt->fd, DIOCGMEDIASIZE, &gpt->mediasz) == -1) {
528: gpt_warn(gpt, "Cannot get media size");
1.44 christos 529: goto close;
530: }
1.43 jnemeth 531: #endif
1.49 christos 532: if (gpt->mediasz == 0) {
533: gpt_warnx(gpt, "Media size can't be 0");
1.44 christos 534: goto close;
535: }
536: }
1.1 christos 537: } else {
1.62 christos 538: gpt->flags |= GPT_FILE;
1.49 christos 539: if (gpt->secsz == 0)
540: gpt->secsz = 512; /* Fixed size for files. */
541: if (gpt->mediasz == 0) {
542: if (gpt->sb.st_size % gpt->secsz) {
1.36 christos 543: errno = EINVAL;
544: goto close;
545: }
1.49 christos 546: gpt->mediasz = gpt->sb.st_size;
1.1 christos 547: }
1.56 christos 548: gpt->flags |= GPT_NOSYNC;
1.1 christos 549: }
550:
551: /*
552: * We require an absolute minimum of 6 sectors. One for the MBR,
553: * 2 for the GPT header, 2 for the GPT table and one to hold some
554: * user data. Let's catch this extreme border case here so that
555: * we don't have to worry about it later.
556: */
1.49 christos 557: devsz = gpt->mediasz / gpt->secsz;
1.45 christos 558: if (devsz < 6) {
1.62 christos 559: gpt_warnx(gpt, "Need 6 sectors, we have %ju",
1.49 christos 560: (uintmax_t)devsz);
1.1 christos 561: goto close;
562: }
563:
1.49 christos 564: if (gpt->verbose) {
565: gpt_msg(gpt, "mediasize=%ju; sectorsize=%u; blocks=%ju",
566: (uintmax_t)gpt->mediasz, gpt->secsz, (uintmax_t)devsz);
1.42 christos 567: }
1.1 christos 568:
1.57 christos 569: if (map_init(gpt, devsz) == -1)
570: goto close;
1.1 christos 571:
1.74.4.1! christos 572: index = 1;
! 573: if (gpt_mbr(gpt, 0LL, &index, 0U) == -1)
1.1 christos 574: goto close;
1.49 christos 575: if ((found = gpt_gpt(gpt, 1LL, 1)) == -1)
1.1 christos 576: goto close;
1.49 christos 577: if (gpt_gpt(gpt, devsz - 1LL, found) == -1)
1.1 christos 578: goto close;
579:
1.49 christos 580: return gpt;
1.1 christos 581:
582: close:
1.49 christos 583: if (gpt->fd != -1)
584: close(gpt->fd);
585: free(gpt);
586: return NULL;
1.1 christos 587: }
588:
589: void
1.49 christos 590: gpt_close(gpt_t gpt)
1.1 christos 591: {
1.46 christos 592:
1.74.4.1! christos 593: if (!(gpt->flags & GPT_MODIFIED) || !(gpt->flags & GPT_SYNC))
1.48 christos 594: goto out;
595:
1.49 christos 596: if (!(gpt->flags & GPT_NOSYNC)) {
1.47 christos 597: #ifdef DIOCMWEDGES
598: int bits;
1.49 christos 599: if (ioctl(gpt->fd, DIOCMWEDGES, &bits) == -1)
600: gpt_warn(gpt, "Can't update wedge information");
1.48 christos 601: else
602: goto out;
1.47 christos 603: #endif
604: }
1.62 christos 605: if (!(gpt->flags & GPT_FILE))
606: gpt_msg(gpt, "You need to run \"dkctl %s makewedges\""
607: " for the changes to take effect\n", gpt->device_name);
1.46 christos 608:
1.48 christos 609: out:
1.49 christos 610: close(gpt->fd);
1.1 christos 611: }
612:
1.67 joerg 613: __printflike(2, 0)
1.66 christos 614: static void
615: gpt_vwarnx(gpt_t gpt, const char *fmt, va_list ap, const char *e)
616: {
617: if (gpt && (gpt->flags & GPT_QUIET))
618: return;
619: fprintf(stderr, "%s: ", getprogname());
620: if (gpt)
621: fprintf(stderr, "%s: ", gpt->device_name);
622: vfprintf(stderr, fmt, ap);
623: if (e)
624: fprintf(stderr, " (%s)\n", e);
625: else
626: fputc('\n', stderr);
627: }
628:
1.42 christos 629: void
1.49 christos 630: gpt_warnx(gpt_t gpt, const char *fmt, ...)
1.42 christos 631: {
632: va_list ap;
1.48 christos 633:
1.49 christos 634: va_start(ap, fmt);
1.66 christos 635: gpt_vwarnx(gpt, fmt, ap, NULL);
1.49 christos 636: va_end(ap);
637: }
638:
639: void
640: gpt_warn(gpt_t gpt, const char *fmt, ...)
641: {
642: va_list ap;
643:
644: va_start(ap, fmt);
1.66 christos 645: gpt_vwarnx(gpt, fmt, ap, strerror(errno));
1.49 christos 646: va_end(ap);
647: }
648:
649: void
650: gpt_msg(gpt_t gpt, const char *fmt, ...)
651: {
652: va_list ap;
653:
1.66 christos 654: if (gpt && (gpt->flags & GPT_QUIET))
1.49 christos 655: return;
1.66 christos 656: if (gpt)
657: printf("%s: ", gpt->device_name);
1.42 christos 658: va_start(ap, fmt);
659: vprintf(fmt, ap);
660: va_end(ap);
661: printf("\n");
662: }
1.49 christos 663:
664: struct gpt_hdr *
665: gpt_hdr(gpt_t gpt)
666: {
667: gpt->gpt = map_find(gpt, MAP_TYPE_PRI_GPT_HDR);
668: if (gpt->gpt == NULL) {
669: gpt_warnx(gpt, "No primary GPT header; run create or recover");
670: return NULL;
671: }
672:
673: gpt->tpg = map_find(gpt, MAP_TYPE_SEC_GPT_HDR);
674: if (gpt->tpg == NULL) {
675: gpt_warnx(gpt, "No secondary GPT header; run recover");
676: return NULL;
677: }
678:
679: gpt->tbl = map_find(gpt, MAP_TYPE_PRI_GPT_TBL);
680: gpt->lbt = map_find(gpt, MAP_TYPE_SEC_GPT_TBL);
681: if (gpt->tbl == NULL || gpt->lbt == NULL) {
682: gpt_warnx(gpt, "Corrupt maps, run recover");
683: return NULL;
684: }
685:
686: return gpt->gpt->map_data;
687: }
688:
689: int
690: gpt_write_crc(gpt_t gpt, map_t map, map_t tbl)
691: {
692: struct gpt_hdr *hdr = map->map_data;
693:
694: hdr->hdr_crc_table = htole32(crc32(tbl->map_data,
695: le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz)));
696: hdr->hdr_crc_self = 0;
697: hdr->hdr_crc_self = htole32(crc32(hdr, le32toh(hdr->hdr_size)));
698:
699: if (gpt_write(gpt, map) == -1) {
700: gpt_warn(gpt, "Error writing crc map");
701: return -1;
702: }
703:
704: if (gpt_write(gpt, tbl) == -1) {
705: gpt_warn(gpt, "Error writing crc table");
706: return -1;
707: }
708:
709: return 0;
710: }
711:
712: int
713: gpt_write_primary(gpt_t gpt)
714: {
715: return gpt_write_crc(gpt, gpt->gpt, gpt->tbl);
716: }
717:
718:
719: int
720: gpt_write_backup(gpt_t gpt)
721: {
722: return gpt_write_crc(gpt, gpt->tpg, gpt->lbt);
723: }
724:
725: void
1.68 christos 726: gpt_create_pmbr_part(struct mbr_part *part, off_t last, int active)
1.49 christos 727: {
1.68 christos 728: part->part_flag = active ? 0x80 : 0;
1.49 christos 729: part->part_shd = 0x00;
730: part->part_ssect = 0x02;
731: part->part_scyl = 0x00;
732: part->part_typ = MBR_PTYPE_PMBR;
733: part->part_ehd = 0xfe;
734: part->part_esect = 0xff;
735: part->part_ecyl = 0xff;
736: part->part_start_lo = htole16(1);
737: if (last > 0xffffffff) {
738: part->part_size_lo = htole16(0xffff);
739: part->part_size_hi = htole16(0xffff);
740: } else {
1.59 christos 741: part->part_size_lo = htole16((uint16_t)last);
742: part->part_size_hi = htole16((uint16_t)(last >> 16));
1.49 christos 743: }
744: }
745:
746: struct gpt_ent *
747: gpt_ent(map_t map, map_t tbl, unsigned int i)
748: {
749: struct gpt_hdr *hdr = map->map_data;
750: return (void *)((char *)tbl->map_data + i * le32toh(hdr->hdr_entsz));
751: }
752:
753: struct gpt_ent *
754: gpt_ent_primary(gpt_t gpt, unsigned int i)
755: {
756: return gpt_ent(gpt->gpt, gpt->tbl, i);
757: }
758:
759: struct gpt_ent *
760: gpt_ent_backup(gpt_t gpt, unsigned int i)
761: {
762: return gpt_ent(gpt->tpg, gpt->lbt, i);
763: }
1.50 christos 764:
765: int
766: gpt_usage(const char *prefix, const struct gpt_cmd *cmd)
767: {
768: const char **a = cmd->help;
769: size_t hlen = cmd->hlen;
770: size_t i;
771:
772: if (prefix == NULL) {
773: const char *pname = getprogname();
1.54 christos 774: const char *d1, *d2, *d = " <device>";
1.50 christos 775: int len = (int)strlen(pname);
1.54 christos 776: if (strcmp(pname, "gpt") == 0) {
777: d1 = "";
778: d2 = d;
779: } else {
780: d2 = "";
781: d1 = d;
782: }
783: fprintf(stderr, "Usage: %s%s %s %s%s\n", pname,
784: d1, cmd->name, a[0], d2);
1.50 christos 785: for (i = 1; i < hlen; i++) {
786: fprintf(stderr,
1.54 christos 787: " %*s%s %s %s%s\n", len, "",
788: d1, cmd->name, a[i], d2);
1.50 christos 789: }
790: } else {
791: for (i = 0; i < hlen; i++)
792: fprintf(stderr, "%s%s %s\n", prefix, cmd->name, a[i]);
793: }
794: return -1;
795: }
1.51 christos 796:
797: off_t
798: gpt_last(gpt_t gpt)
799: {
800: return gpt->mediasz / gpt->secsz - 1LL;
801: }
802:
1.59 christos 803: off_t
1.51 christos 804: gpt_create(gpt_t gpt, off_t last, u_int parts, int primary_only)
805: {
806: off_t blocks;
807: map_t map;
808: struct gpt_hdr *hdr;
809: struct gpt_ent *ent;
810: unsigned int i;
811: void *p;
812:
813: if (map_find(gpt, MAP_TYPE_PRI_GPT_HDR) != NULL ||
814: map_find(gpt, MAP_TYPE_SEC_GPT_HDR) != NULL) {
1.69 christos 815: gpt_warnx(gpt, "Device already contains a GPT, "
816: "destroy it first");
1.51 christos 817: return -1;
818: }
819:
820: /* Get the amount of free space after the MBR */
821: blocks = map_free(gpt, 1LL, 0LL);
822: if (blocks == 0LL) {
823: gpt_warnx(gpt, "No room for the GPT header");
824: return -1;
825: }
826:
827: /* Don't create more than parts entries. */
828: if ((uint64_t)(blocks - 1) * gpt->secsz >
829: parts * sizeof(struct gpt_ent)) {
1.59 christos 830: blocks = (off_t)((parts * sizeof(struct gpt_ent)) / gpt->secsz);
1.51 christos 831: if ((parts * sizeof(struct gpt_ent)) % gpt->secsz)
832: blocks++;
833: blocks++; /* Don't forget the header itself */
834: }
835:
836: /* Never cross the median of the device. */
837: if ((blocks + 1LL) > ((last + 1LL) >> 1))
838: blocks = ((last + 1LL) >> 1) - 1LL;
839:
840: /*
841: * Get the amount of free space at the end of the device and
842: * calculate the size for the GPT structures.
843: */
844: map = map_last(gpt);
845: if (map->map_type != MAP_TYPE_UNUSED) {
846: gpt_warnx(gpt, "No room for the backup header");
847: return -1;
848: }
849:
850: if (map->map_size < blocks)
851: blocks = map->map_size;
852: if (blocks == 1LL) {
853: gpt_warnx(gpt, "No room for the GPT table");
854: return -1;
855: }
856:
857: blocks--; /* Number of blocks in the GPT table. */
858:
1.63 christos 859: if (gpt_add_hdr(gpt, MAP_TYPE_PRI_GPT_HDR, 1) == -1)
1.51 christos 860: return -1;
861:
1.59 christos 862: if ((p = calloc((size_t)blocks, gpt->secsz)) == NULL) {
1.51 christos 863: gpt_warnx(gpt, "Can't allocate the primary GPT table");
864: return -1;
865: }
866: if ((gpt->tbl = map_add(gpt, 2LL, blocks,
1.61 christos 867: MAP_TYPE_PRI_GPT_TBL, p, 1)) == NULL) {
1.51 christos 868: free(p);
869: gpt_warnx(gpt, "Can't add the primary GPT table");
870: return -1;
871: }
872:
873: hdr = gpt->gpt->map_data;
874: memcpy(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig));
875:
876: /*
877: * XXX struct gpt_hdr is not a multiple of 8 bytes in size and thus
878: * contains padding we must not include in the size.
879: */
880: hdr->hdr_revision = htole32(GPT_HDR_REVISION);
881: hdr->hdr_size = htole32(GPT_HDR_SIZE);
1.59 christos 882: hdr->hdr_lba_self = htole64((uint64_t)gpt->gpt->map_start);
883: hdr->hdr_lba_alt = htole64((uint64_t)last);
884: hdr->hdr_lba_start = htole64((uint64_t)(gpt->tbl->map_start + blocks));
885: hdr->hdr_lba_end = htole64((uint64_t)(last - blocks - 1LL));
1.52 christos 886: if (gpt_uuid_generate(gpt, hdr->hdr_guid) == -1)
887: return -1;
1.59 christos 888: hdr->hdr_lba_table = htole64((uint64_t)(gpt->tbl->map_start));
889: hdr->hdr_entries = htole32((uint32_t)(((uint64_t)blocks * gpt->secsz) /
890: sizeof(struct gpt_ent)));
1.51 christos 891: if (le32toh(hdr->hdr_entries) > parts)
892: hdr->hdr_entries = htole32(parts);
893: hdr->hdr_entsz = htole32(sizeof(struct gpt_ent));
894:
895: ent = gpt->tbl->map_data;
896: for (i = 0; i < le32toh(hdr->hdr_entries); i++) {
1.52 christos 897: if (gpt_uuid_generate(gpt, ent[i].ent_guid) == -1)
898: return -1;
1.51 christos 899: }
900:
901: /*
902: * Create backup GPT if the user didn't suppress it.
903: */
904: if (primary_only)
905: return last;
906:
1.63 christos 907: if (gpt_add_hdr(gpt, MAP_TYPE_SEC_GPT_HDR, last) == -1)
1.51 christos 908: return -1;
909:
910: if ((gpt->lbt = map_add(gpt, last - blocks, blocks,
1.61 christos 911: MAP_TYPE_SEC_GPT_TBL, gpt->tbl->map_data, 0)) == NULL) {
1.51 christos 912: gpt_warnx(gpt, "Can't add the secondary GPT table");
913: return -1;
914: }
915:
916: memcpy(gpt->tpg->map_data, gpt->gpt->map_data, gpt->secsz);
917:
918: hdr = gpt->tpg->map_data;
1.59 christos 919: hdr->hdr_lba_self = htole64((uint64_t)gpt->tpg->map_start);
920: hdr->hdr_lba_alt = htole64((uint64_t)gpt->gpt->map_start);
921: hdr->hdr_lba_table = htole64((uint64_t)gpt->lbt->map_start);
1.51 christos 922: return last;
923: }
924:
1.52 christos 925: static int
926: gpt_size_get(gpt_t gpt, off_t *size)
927: {
928: off_t sectors;
929: int64_t human_num;
930: char *p;
931:
932: if (*size > 0)
933: return -1;
934: sectors = strtoll(optarg, &p, 10);
935: if (sectors < 1)
936: return -1;
937: if (*p == '\0' || ((*p == 's' || *p == 'S') && p[1] == '\0')) {
938: *size = sectors * gpt->secsz;
939: return 0;
940: }
941: if ((*p == 'b' || *p == 'B') && p[1] == '\0') {
942: *size = sectors;
943: return 0;
944: }
945: if (dehumanize_number(optarg, &human_num) < 0)
946: return -1;
947: *size = human_num;
948: return 0;
949: }
950:
1.51 christos 951: int
1.66 christos 952: gpt_human_get(gpt_t gpt, off_t *human)
1.51 christos 953: {
954: int64_t human_num;
955:
1.66 christos 956: if (*human > 0) {
957: gpt_warn(gpt, "Already set to %jd new `%s'", (intmax_t)*human,
958: optarg);
1.52 christos 959: return -1;
1.66 christos 960: }
961: if (dehumanize_number(optarg, &human_num) < 0) {
962: gpt_warn(gpt, "Bad number `%s'", optarg);
1.52 christos 963: return -1;
1.66 christos 964: }
1.52 christos 965: *human = human_num;
1.66 christos 966: if (*human < 1) {
967: gpt_warn(gpt, "Number `%s' < 1", optarg);
1.52 christos 968: return -1;
1.66 christos 969: }
1.52 christos 970: return 0;
971: }
972:
973: int
974: gpt_add_find(gpt_t gpt, struct gpt_find *find, int ch)
975: {
1.51 christos 976: switch (ch) {
977: case 'a':
1.66 christos 978: if (find->all > 0) {
979: gpt_warn(gpt, "-a is already set");
1.51 christos 980: return -1;
1.66 christos 981: }
1.51 christos 982: find->all = 1;
983: break;
984: case 'b':
1.66 christos 985: if (gpt_human_get(gpt, &find->block) == -1)
1.51 christos 986: return -1;
987: break;
988: case 'i':
1.66 christos 989: if (gpt_uint_get(gpt, &find->entry) == -1)
1.51 christos 990: return -1;
991: break;
992: case 'L':
1.52 christos 993: if (gpt_name_get(gpt, &find->label) == -1)
1.51 christos 994: return -1;
995: break;
996: case 's':
1.52 christos 997: if (gpt_size_get(gpt, &find->size) == -1)
1.51 christos 998: return -1;
999: break;
1000: case 't':
1001: if (!gpt_uuid_is_nil(find->type))
1002: return -1;
1003: if (gpt_uuid_parse(optarg, find->type) != 0)
1004: return -1;
1005: break;
1006: default:
1.66 christos 1007: gpt_warn(gpt, "Unknown find option `%c'", ch);
1.51 christos 1008: return -1;
1009: }
1010: return 0;
1011: }
1012:
1013: int
1014: gpt_change_ent(gpt_t gpt, const struct gpt_find *find,
1015: void (*cfn)(struct gpt_ent *, void *), void *v)
1016: {
1017: map_t m;
1018: struct gpt_hdr *hdr;
1019: struct gpt_ent *ent;
1020: unsigned int i;
1.53 christos 1021: uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
1.51 christos 1022:
1023: if (!find->all ^
1024: (find->block > 0 || find->entry > 0 || find->label != NULL
1025: || find->size > 0 || !gpt_uuid_is_nil(find->type)))
1026: return -1;
1027:
1028: if ((hdr = gpt_hdr(gpt)) == NULL)
1029: return -1;
1030:
1031: /* Relabel all matching entries in the map. */
1032: for (m = map_first(gpt); m != NULL; m = m->map_next) {
1033: if (m->map_type != MAP_TYPE_GPT_PART || m->map_index < 1)
1034: continue;
1035: if (find->entry > 0 && find->entry != m->map_index)
1036: continue;
1037: if (find->block > 0 && find->block != m->map_start)
1038: continue;
1039: if (find->size > 0 && find->size != m->map_size)
1040: continue;
1041:
1042: i = m->map_index - 1;
1043:
1044: ent = gpt_ent_primary(gpt, i);
1.53 christos 1045: if (find->label != NULL) {
1.73 christos 1046: utf16_to_utf8(ent->ent_name,
1047: __arraycount(ent->ent_name),
1048: utfbuf, __arraycount(utfbuf));
1.74.4.1! christos 1049: if (strcmp((char *)find->label, (char *)utfbuf) != 0)
1.51 christos 1050: continue;
1.53 christos 1051: }
1.51 christos 1052:
1053: if (!gpt_uuid_is_nil(find->type) &&
1054: !gpt_uuid_equal(find->type, ent->ent_type))
1055: continue;
1056:
1057: /* Change the primary entry. */
1058: (*cfn)(ent, v);
1059:
1060: if (gpt_write_primary(gpt) == -1)
1061: return -1;
1062:
1063: ent = gpt_ent_backup(gpt, i);
1064: /* Change the secondary entry. */
1065: (*cfn)(ent, v);
1066:
1067: if (gpt_write_backup(gpt) == -1)
1068: return -1;
1069:
1070: gpt_msg(gpt, "Partition %d %s", m->map_index, find->msg);
1071: }
1072: return 0;
1073: }
1074:
1075: int
1076: gpt_add_ais(gpt_t gpt, off_t *alignment, u_int *entry, off_t *size, int ch)
1077: {
1078: switch (ch) {
1079: case 'a':
1.66 christos 1080: if (gpt_human_get(gpt, alignment) == -1)
1.51 christos 1081: return -1;
1082: return 0;
1083: case 'i':
1.66 christos 1084: if (gpt_uint_get(gpt, entry) == -1)
1.51 christos 1085: return -1;
1086: return 0;
1087: case 's':
1.52 christos 1088: if (gpt_size_get(gpt, size) == -1)
1.51 christos 1089: return -1;
1090: return 0;
1091: default:
1.66 christos 1092: gpt_warn(gpt, "Unknown alignment/index/size option `%c'", ch);
1.51 christos 1093: return -1;
1094: }
1095: }
1096:
1097: off_t
1098: gpt_check_ais(gpt_t gpt, off_t alignment, u_int entry, off_t size)
1099: {
1100: if (entry == 0) {
1101: gpt_warnx(gpt, "Entry not specified");
1102: return -1;
1103: }
1104: if (alignment % gpt->secsz != 0) {
1105: gpt_warnx(gpt, "Alignment (%#jx) must be a multiple of "
1106: "sector size (%#x)", (uintmax_t)alignment, gpt->secsz);
1107: return -1;
1108: }
1109:
1110: if (size % gpt->secsz != 0) {
1111: gpt_warnx(gpt, "Size (%#jx) must be a multiple of "
1112: "sector size (%#x)", (uintmax_t)size, gpt->secsz);
1113: return -1;
1114: }
1115: if (size > 0)
1116: return size / gpt->secsz;
1117: return 0;
1118: }
1.64 christos 1119:
1120: static const struct nvd {
1121: const char *name;
1122: uint64_t mask;
1123: const char *description;
1124: } gpt_attr[] = {
1125: {
1126: "biosboot",
1127: GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE,
1128: "Legacy BIOS boot partition",
1129: },
1130: {
1131: "bootme",
1132: GPT_ENT_ATTR_BOOTME,
1133: "Bootable partition",
1134: },
1135: {
1136: "bootfailed",
1137: GPT_ENT_ATTR_BOOTFAILED,
1138: "Partition that marked bootonce failed to boot",
1139: },
1140: {
1141: "bootonce",
1142: GPT_ENT_ATTR_BOOTONCE,
1143: "Attempt to boot this partition only once",
1144: },
1145: {
1146: "noblockio",
1147: GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL,
1148: "UEFI won't recognize file system for block I/O",
1149: },
1150: {
1151: "required",
1152: GPT_ENT_ATTR_REQUIRED_PARTITION,
1153: "Partition required for platform to function",
1154: },
1155: };
1156:
1.51 christos 1157: int
1.64 christos 1158: gpt_attr_get(gpt_t gpt, uint64_t *attributes)
1159: {
1160: size_t i;
1161: int rv = 0;
1162: char *ptr;
1163:
1164: *attributes = 0;
1165:
1166: for (ptr = strtok(optarg, ","); ptr; ptr = strtok(NULL, ",")) {
1167: for (i = 0; i < __arraycount(gpt_attr); i++)
1168: if (strcmp(gpt_attr[i].name, ptr) == 0)
1169: break;
1170: if (i == __arraycount(gpt_attr)) {
1.74 sevan 1171: gpt_warnx(gpt, "Unrecognized attribute `%s'", ptr);
1.64 christos 1172: rv = -1;
1173: } else
1174: *attributes |= gpt_attr[i].mask;
1175: }
1176: return rv;
1177: }
1178:
1179: void
1180: gpt_attr_help(const char *prefix)
1.51 christos 1181: {
1.64 christos 1182: size_t i;
1183:
1184: for (i = 0; i < __arraycount(gpt_attr); i++)
1185: printf("%s%10.10s\t%s\n", prefix, gpt_attr[i].name,
1186: gpt_attr[i].description);
1187: }
1188:
1189: const char *
1190: gpt_attr_list(char *buf, size_t len, uint64_t attributes)
1191: {
1192: size_t i;
1193: strlcpy(buf, "", len);
1194:
1195: for (i = 0; i < __arraycount(gpt_attr); i++)
1196: if (attributes & gpt_attr[i].mask) {
1.65 jnemeth 1197: strlcat(buf, buf[0] ? ", " : "", len);
1.64 christos 1198: strlcat(buf, gpt_attr[i].name, len);
1199: }
1200: return buf;
1.51 christos 1201: }
1.64 christos 1202:
1.51 christos 1203: int
1204: gpt_attr_update(gpt_t gpt, u_int entry, uint64_t set, uint64_t clr)
1205: {
1206: struct gpt_hdr *hdr;
1207: struct gpt_ent *ent;
1208: unsigned int i;
1209:
1.66 christos 1210: if (entry == 0 || (set == 0 && clr == 0)) {
1211: gpt_warnx(gpt, "Nothing to set");
1.51 christos 1212: return -1;
1.66 christos 1213: }
1.51 christos 1214:
1215: if ((hdr = gpt_hdr(gpt)) == NULL)
1216: return -1;
1217:
1218: if (entry > le32toh(hdr->hdr_entries)) {
1219: gpt_warnx(gpt, "Index %u out of range (%u max)",
1220: entry, le32toh(hdr->hdr_entries));
1221: return -1;
1222: }
1223:
1224: i = entry - 1;
1225: ent = gpt_ent_primary(gpt, i);
1226: if (gpt_uuid_is_nil(ent->ent_type)) {
1227: gpt_warnx(gpt, "Entry at index %u is unused", entry);
1228: return -1;
1229: }
1230:
1231: ent->ent_attr &= ~clr;
1232: ent->ent_attr |= set;
1233:
1234: if (gpt_write_primary(gpt) == -1)
1235: return -1;
1236:
1237: ent = gpt_ent_backup(gpt, i);
1238: ent->ent_attr &= ~clr;
1239: ent->ent_attr |= set;
1240:
1241: if (gpt_write_backup(gpt) == -1)
1242: return -1;
1243: gpt_msg(gpt, "Partition %d attributes updated", entry);
1244: return 0;
1245: }
1246:
1247: int
1.66 christos 1248: gpt_uint_get(gpt_t gpt, u_int *entry)
1.51 christos 1249: {
1250: char *p;
1251: if (*entry > 0)
1252: return -1;
1.59 christos 1253: *entry = (u_int)strtoul(optarg, &p, 10);
1.66 christos 1254: if (*p != 0 || *entry < 1) {
1255: gpt_warn(gpt, "Bad number `%s'", optarg);
1.51 christos 1256: return -1;
1.66 christos 1257: }
1.51 christos 1258: return 0;
1259: }
1.52 christos 1260: int
1261: gpt_uuid_get(gpt_t gpt, gpt_uuid_t *uuid)
1262: {
1263: if (!gpt_uuid_is_nil(*uuid))
1264: return -1;
1265: if (gpt_uuid_parse(optarg, *uuid) != 0) {
1266: gpt_warn(gpt, "Can't parse uuid");
1267: return -1;
1268: }
1269: return 0;
1270: }
1271:
1272: int
1273: gpt_name_get(gpt_t gpt, void *v)
1274: {
1275: char **name = v;
1276: if (*name != NULL)
1277: return -1;
1278: *name = strdup(optarg);
1279: if (*name == NULL) {
1280: gpt_warn(gpt, "Can't copy string");
1281: return -1;
1282: }
1283: return 0;
1284: }
1.59 christos 1285:
1286: void
1287: gpt_show_num(const char *prompt, uintmax_t num)
1288: {
1289: #ifdef HN_AUTOSCALE
1290: char human_num[5];
1291: if (humanize_number(human_num, 5, (int64_t)num ,
1292: "", HN_AUTOSCALE, HN_NOSPACE|HN_B) < 0)
1293: human_num[0] = '\0';
1294: #endif
1295: printf("%s: %ju", prompt, num);
1296: #ifdef HN_AUTOSCALE
1297: if (human_num[0] != '\0')
1.60 christos 1298: printf(" (%s)", human_num);
1.59 christos 1299: #endif
1300: printf("\n");
1301: }
1.63 christos 1302:
1303: int
1304: gpt_add_hdr(gpt_t gpt, int type, off_t loc)
1305: {
1306: void *p;
1307: map_t *t;
1308: const char *msg;
1309:
1310: switch (type) {
1311: case MAP_TYPE_PRI_GPT_HDR:
1312: t = &gpt->gpt;
1313: msg = "primary";
1314: break;
1315: case MAP_TYPE_SEC_GPT_HDR:
1316: t = &gpt->tpg;
1317: msg = "secondary";
1318: break;
1319: default:
1320: gpt_warnx(gpt, "Unknown GPT header type %d", type);
1321: return -1;
1322: }
1323:
1324: if ((p = calloc(1, gpt->secsz)) == NULL) {
1325: gpt_warn(gpt, "Error allocating %s GPT header", msg);
1326: return -1;
1327: }
1328:
1329: *t = map_add(gpt, loc, 1LL, type, p, 1);
1330: if (*t == NULL) {
1331: gpt_warn(gpt, "Error adding %s GPT header", msg);
1332: free(p);
1333: return -1;
1334: }
1335: return 0;
1336: }
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