Annotation of src/sbin/gpt/gpt.c, Revision 1.36
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 $");
1.2 christos 36: #endif
37: #ifdef __RCSID
1.36 ! christos 38: __RCSID("$NetBSD: gpt.c,v 1.35 2014/10/02 19:15:21 joerg 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>
52: #include <stdio.h>
53: #include <stdlib.h>
54: #include <string.h>
55: #include <unistd.h>
1.32 christos 56: #include <ctype.h>
57: #ifndef HAVE_NBTOOL_CONFIG_H
1.2 christos 58: #include <prop/proplib.h>
59: #include <sys/drvctlio.h>
1.35 joerg 60: #include <sys/disk.h>
1.32 christos 61: #endif
1.1 christos 62:
63: #include "map.h"
64: #include "gpt.h"
65:
66: char device_path[MAXPATHLEN];
1.9 uebayasi 67: const char *device_arg;
1.1 christos 68: char *device_name;
69:
70: off_t mediasz;
71:
72: u_int parts;
73: u_int secsz;
74:
75: int readonly, verbose;
76:
77: static uint32_t crc32_tab[] = {
78: 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
79: 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
80: 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
81: 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
82: 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
83: 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
84: 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
85: 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
86: 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
87: 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
88: 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
89: 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
90: 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
91: 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
92: 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
93: 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
94: 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
95: 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
96: 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
97: 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
98: 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
99: 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
100: 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
101: 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
102: 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
103: 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
104: 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
105: 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
106: 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
107: 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
108: 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
109: 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
110: 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
111: 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
112: 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
113: 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
114: 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
115: 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
116: 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
117: 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
118: 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
119: 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
120: 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
121: };
122:
123: uint32_t
124: crc32(const void *buf, size_t size)
125: {
126: const uint8_t *p;
127: uint32_t crc;
128:
129: p = buf;
130: crc = ~0U;
131:
132: while (size--)
133: crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
134:
135: return crc ^ ~0U;
136: }
137:
138: uint8_t *
139: utf16_to_utf8(uint16_t *s16)
140: {
141: static uint8_t *s8 = NULL;
142: static size_t s8len = 0;
143: size_t s8idx, s16idx, s16len;
144: uint32_t utfchar;
145: unsigned int c;
146:
147: s16len = 0;
148: while (s16[s16len++] != 0)
149: ;
150: if (s8len < s16len * 3) {
151: if (s8 != NULL)
152: free(s8);
153: s8len = s16len * 3;
154: s8 = calloc(s16len, 3);
155: }
156: s8idx = s16idx = 0;
157: while (s16idx < s16len) {
158: utfchar = le16toh(s16[s16idx++]);
159: if ((utfchar & 0xf800) == 0xd800) {
160: c = le16toh(s16[s16idx]);
161: if ((utfchar & 0x400) != 0 || (c & 0xfc00) != 0xdc00)
162: utfchar = 0xfffd;
163: else
164: s16idx++;
165: }
166: if (utfchar < 0x80) {
167: s8[s8idx++] = utfchar;
168: } else if (utfchar < 0x800) {
169: s8[s8idx++] = 0xc0 | (utfchar >> 6);
170: s8[s8idx++] = 0x80 | (utfchar & 0x3f);
171: } else if (utfchar < 0x10000) {
172: s8[s8idx++] = 0xe0 | (utfchar >> 12);
173: s8[s8idx++] = 0x80 | ((utfchar >> 6) & 0x3f);
174: s8[s8idx++] = 0x80 | (utfchar & 0x3f);
175: } else if (utfchar < 0x200000) {
176: s8[s8idx++] = 0xf0 | (utfchar >> 18);
177: s8[s8idx++] = 0x80 | ((utfchar >> 12) & 0x3f);
178: s8[s8idx++] = 0x80 | ((utfchar >> 6) & 0x3f);
179: s8[s8idx++] = 0x80 | (utfchar & 0x3f);
180: }
181: }
182: return (s8);
183: }
184:
185: void
186: utf8_to_utf16(const uint8_t *s8, uint16_t *s16, size_t s16len)
187: {
188: size_t s16idx, s8idx, s8len;
1.2 christos 189: uint32_t utfchar = 0;
1.1 christos 190: unsigned int c, utfbytes;
191:
192: s8len = 0;
193: while (s8[s8len++] != 0)
194: ;
195: s8idx = s16idx = 0;
196: utfbytes = 0;
197: do {
198: c = s8[s8idx++];
199: if ((c & 0xc0) != 0x80) {
200: /* Initial characters. */
201: if (utfbytes != 0) {
202: /* Incomplete encoding. */
1.17 matt 203: s16[s16idx++] = htole16(0xfffd);
1.1 christos 204: if (s16idx == s16len) {
205: s16[--s16idx] = 0;
206: return;
207: }
208: }
209: if ((c & 0xf8) == 0xf0) {
210: utfchar = c & 0x07;
211: utfbytes = 3;
212: } else if ((c & 0xf0) == 0xe0) {
213: utfchar = c & 0x0f;
214: utfbytes = 2;
215: } else if ((c & 0xe0) == 0xc0) {
216: utfchar = c & 0x1f;
217: utfbytes = 1;
218: } else {
219: utfchar = c & 0x7f;
220: utfbytes = 0;
221: }
222: } else {
223: /* Followup characters. */
224: if (utfbytes > 0) {
225: utfchar = (utfchar << 6) + (c & 0x3f);
226: utfbytes--;
227: } else if (utfbytes == 0)
228: utfbytes = -1;
229: }
230: if (utfbytes == 0) {
231: if (utfchar >= 0x10000 && s16idx + 2 >= s16len)
1.17 matt 232: utfchar = 0xfffd;
1.1 christos 233: if (utfchar >= 0x10000) {
1.16 matt 234: s16[s16idx++] =
235: htole16(0xd800 | ((utfchar>>10)-0x40));
236: s16[s16idx++] =
237: htole16(0xdc00 | (utfchar & 0x3ff));
1.1 christos 238: } else
1.16 matt 239: s16[s16idx++] = htole16(utfchar);
1.1 christos 240: if (s16idx == s16len) {
241: s16[--s16idx] = 0;
242: return;
243: }
244: }
245: } while (c != 0);
246: }
247:
248: void*
249: gpt_read(int fd, off_t lba, size_t count)
250: {
251: off_t ofs;
252: void *buf;
253:
254: count *= secsz;
255: buf = malloc(count);
256: if (buf == NULL)
257: return (NULL);
258:
259: ofs = lba * secsz;
260: if (lseek(fd, ofs, SEEK_SET) == ofs &&
261: read(fd, buf, count) == (ssize_t)count)
262: return (buf);
263:
264: free(buf);
265: return (NULL);
266: }
267:
268: int
269: gpt_write(int fd, map_t *map)
270: {
271: off_t ofs;
272: size_t count;
273:
274: count = map->map_size * secsz;
275: ofs = map->map_start * secsz;
276: if (lseek(fd, ofs, SEEK_SET) == ofs &&
277: write(fd, map->map_data, count) == (ssize_t)count)
278: return (0);
279: return (-1);
280: }
281:
282: static int
283: gpt_mbr(int fd, off_t lba)
284: {
285: struct mbr *mbr;
286: map_t *m, *p;
287: off_t size, start;
288: unsigned int i, pmbr;
289:
290: mbr = gpt_read(fd, lba, 1);
291: if (mbr == NULL)
292: return (-1);
293:
294: if (mbr->mbr_sig != htole16(MBR_SIG)) {
295: if (verbose)
296: warnx("%s: MBR not found at sector %llu", device_name,
297: (long long)lba);
298: free(mbr);
299: return (0);
300: }
301:
302: /*
303: * Differentiate between a regular MBR and a PMBR. This is more
304: * convenient in general. A PMBR is one with a single partition
305: * of type 0xee.
306: */
307: pmbr = 0;
308: for (i = 0; i < 4; i++) {
1.25 jakllsch 309: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_UNUSED)
1.1 christos 310: continue;
1.25 jakllsch 311: if (mbr->mbr_part[i].part_typ == MBR_PTYPE_PMBR)
1.1 christos 312: pmbr++;
313: else
314: break;
315: }
316: if (pmbr && i == 4 && lba == 0) {
317: if (pmbr != 1)
318: warnx("%s: Suspicious PMBR at sector %llu",
319: device_name, (long long)lba);
320: else if (verbose > 1)
321: warnx("%s: PMBR at sector %llu", device_name,
322: (long long)lba);
323: p = map_add(lba, 1LL, MAP_TYPE_PMBR, mbr);
324: return ((p == NULL) ? -1 : 0);
325: }
326: if (pmbr)
327: warnx("%s: Suspicious MBR at sector %llu", device_name,
328: (long long)lba);
329: else if (verbose > 1)
330: warnx("%s: MBR at sector %llu", device_name, (long long)lba);
331:
332: p = map_add(lba, 1LL, MAP_TYPE_MBR, mbr);
333: if (p == NULL)
334: return (-1);
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) {
344: warnx("%s: Malformed MBR at sector %llu", device_name,
345: (long long)lba);
346: continue;
347: }
348: /* start is relative to the offset of the MBR itself. */
349: start += lba;
350: if (verbose > 2)
351: warnx("%s: MBR part: type=%d, start=%llu, size=%llu",
352: device_name, mbr->mbr_part[i].part_typ,
353: (long long)start, (long long)size);
1.25 jakllsch 354: if (mbr->mbr_part[i].part_typ != MBR_PTYPE_EXT_LBA) {
1.1 christos 355: m = map_add(start, size, MAP_TYPE_MBR_PART, p);
356: if (m == NULL)
357: return (-1);
358: m->map_index = i + 1;
359: } else {
360: if (gpt_mbr(fd, start) == -1)
361: return (-1);
362: }
363: }
364: return (0);
365: }
366:
1.32 christos 367: #ifndef HAVE_NBTOOL_CONFIG_H
1.2 christos 368: static int
369: drvctl(const char *name, u_int *sector_size, off_t *media_size)
370: {
371: prop_dictionary_t command_dict, args_dict, results_dict, data_dict,
372: disk_info, geometry;
373: prop_string_t string;
374: prop_number_t number;
375: int dfd, res;
376: char *dname, *p;
377:
1.36 ! christos 378: if (*sector_size && *media_size)
! 379: return 0;
! 380:
1.4 dyoung 381: if ((dfd = open("/dev/drvctl", O_RDONLY)) == -1) {
382: warn("%s: /dev/drvctl", __func__);
1.2 christos 383: return -1;
1.4 dyoung 384: }
1.2 christos 385:
386: command_dict = prop_dictionary_create();
387: args_dict = prop_dictionary_create();
388:
389: string = prop_string_create_cstring_nocopy("get-properties");
390: prop_dictionary_set(command_dict, "drvctl-command", string);
391: prop_object_release(string);
392:
393: if ((dname = strdup(name[0] == 'r' ? name + 1 : name)) == NULL) {
394: (void)close(dfd);
395: return -1;
396: }
397: for (p = dname; *p; p++)
398: continue;
399: for (--p; p >= dname && !isdigit((unsigned char)*p); *p-- = '\0')
400: continue;
401:
402: string = prop_string_create_cstring(dname);
403: free(dname);
404: prop_dictionary_set(args_dict, "device-name", string);
405: prop_object_release(string);
406:
407: prop_dictionary_set(command_dict, "drvctl-arguments", args_dict);
408: prop_object_release(args_dict);
409:
410: res = prop_dictionary_sendrecv_ioctl(command_dict, dfd, DRVCTLCOMMAND,
411: &results_dict);
412: (void)close(dfd);
413: prop_object_release(command_dict);
414: if (res) {
1.4 dyoung 415: warn("%s: prop_dictionary_sendrecv_ioctl", __func__);
1.2 christos 416: errno = res;
417: return -1;
418: }
419:
420: number = prop_dictionary_get(results_dict, "drvctl-error");
421: if ((errno = prop_number_integer_value(number)) != 0)
422: return -1;
423:
424: data_dict = prop_dictionary_get(results_dict, "drvctl-result-data");
425: if (data_dict == NULL)
426: goto out;
427:
428: disk_info = prop_dictionary_get(data_dict, "disk-info");
429: if (disk_info == NULL)
430: goto out;
431:
432: geometry = prop_dictionary_get(disk_info, "geometry");
433: if (geometry == NULL)
434: goto out;
435:
436: number = prop_dictionary_get(geometry, "sector-size");
437: if (number == NULL)
438: goto out;
439:
1.36 ! christos 440: if (*sector_size == 0)
! 441: *sector_size = prop_number_integer_value(number);
1.2 christos 442:
443: number = prop_dictionary_get(geometry, "sectors-per-unit");
444: if (number == NULL)
445: goto out;
446:
1.36 ! christos 447: if (*media_size == 0)
! 448: *media_size = prop_number_integer_value(number) * *sector_size;
1.2 christos 449:
450: return 0;
451: out:
452: errno = EINVAL;
453: return -1;
454: }
1.32 christos 455: #endif
1.2 christos 456:
1.29 jnemeth 457: int
1.11 christos 458: gpt_gpt(int fd, off_t lba, int found)
1.1 christos 459: {
460: off_t size;
461: struct gpt_ent *ent;
462: struct gpt_hdr *hdr;
1.34 christos 463: char *p;
1.1 christos 464: map_t *m;
465: size_t blocks, tblsz;
466: unsigned int i;
467: uint32_t crc;
468:
469: hdr = gpt_read(fd, lba, 1);
470: if (hdr == NULL)
471: return (-1);
472:
473: if (memcmp(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig)))
474: goto fail_hdr;
475:
476: crc = le32toh(hdr->hdr_crc_self);
477: hdr->hdr_crc_self = 0;
478: if (crc32(hdr, le32toh(hdr->hdr_size)) != crc) {
479: if (verbose)
480: warnx("%s: Bad CRC in GPT header at sector %llu",
481: device_name, (long long)lba);
482: goto fail_hdr;
483: }
484:
485: tblsz = le32toh(hdr->hdr_entries) * le32toh(hdr->hdr_entsz);
486: blocks = tblsz / secsz + ((tblsz % secsz) ? 1 : 0);
487:
488: /* Use generic pointer to deal with hdr->hdr_entsz != sizeof(*ent). */
489: p = gpt_read(fd, le64toh(hdr->hdr_lba_table), blocks);
1.11 christos 490: if (p == NULL) {
491: if (found) {
492: if (verbose)
493: warn("%s: Cannot read LBA table at sector %llu",
1.12 christos 494: device_name, (unsigned long long)
495: le64toh(hdr->hdr_lba_table));
1.11 christos 496: return (-1);
497: }
498: goto fail_hdr;
499: }
1.1 christos 500:
501: if (crc32(p, tblsz) != le32toh(hdr->hdr_crc_table)) {
502: if (verbose)
503: warnx("%s: Bad CRC in GPT table at sector %llu",
504: device_name,
505: (long long)le64toh(hdr->hdr_lba_table));
506: goto fail_ent;
507: }
508:
509: if (verbose > 1)
510: warnx("%s: %s GPT at sector %llu", device_name,
511: (lba == 1) ? "Pri" : "Sec", (long long)lba);
512:
513: m = map_add(lba, 1, (lba == 1)
514: ? MAP_TYPE_PRI_GPT_HDR : MAP_TYPE_SEC_GPT_HDR, hdr);
515: if (m == NULL)
516: return (-1);
517:
518: m = map_add(le64toh(hdr->hdr_lba_table), blocks, (lba == 1)
519: ? MAP_TYPE_PRI_GPT_TBL : MAP_TYPE_SEC_GPT_TBL, p);
520: if (m == NULL)
521: return (-1);
522:
523: if (lba != 1)
1.11 christos 524: return (1);
1.1 christos 525:
526: for (i = 0; i < le32toh(hdr->hdr_entries); i++) {
527: ent = (void*)(p + i * le32toh(hdr->hdr_entsz));
1.34 christos 528: if (gpt_uuid_is_nil(ent->ent_type))
1.1 christos 529: continue;
530:
531: size = le64toh(ent->ent_lba_end) - le64toh(ent->ent_lba_start) +
532: 1LL;
533: if (verbose > 2) {
1.34 christos 534: char buf[128];
535: gpt_uuid_snprintf(buf, sizeof(buf), "%s",
536: ent->ent_type);
537: warnx("%s: GPT partition: type=%s, start=%llu, "
538: "size=%llu", device_name, buf,
1.1 christos 539: (long long)le64toh(ent->ent_lba_start),
540: (long long)size);
541: }
542: m = map_add(le64toh(ent->ent_lba_start), size,
543: MAP_TYPE_GPT_PART, ent);
544: if (m == NULL)
545: return (-1);
546: m->map_index = i + 1;
547: }
1.11 christos 548: return (1);
1.1 christos 549:
550: fail_ent:
551: free(p);
552:
553: fail_hdr:
554: free(hdr);
555: return (0);
556: }
557:
558: int
559: gpt_open(const char *dev)
560: {
561: struct stat sb;
1.11 christos 562: int fd, mode, found;
1.1 christos 563:
564: mode = readonly ? O_RDONLY : O_RDWR|O_EXCL;
565:
1.9 uebayasi 566: device_arg = dev;
1.2 christos 567: fd = opendisk(dev, mode, device_path, sizeof(device_path), 0);
568: if (fd == -1)
569: return -1;
1.23 jnemeth 570: if (strncmp(device_path, _PATH_DEV, strlen(_PATH_DEV)) == 0)
571: device_name = device_path + strlen(_PATH_DEV);
572: else
573: device_name = device_path;
1.1 christos 574:
575: if (fstat(fd, &sb) == -1)
576: goto close;
577:
578: if ((sb.st_mode & S_IFMT) != S_IFREG) {
1.2 christos 579: #ifdef DIOCGSECTORSIZE
1.36 ! christos 580: if ((secsz == 0 && ioctl(fd, DIOCGSECTORSIZE, &secsz) == -1) ||
! 581: (mediasz == 0 && ioctl(fd, DIOCGMEDIASIZE, &mediasz) == -1))
1.1 christos 582: goto close;
1.2 christos 583: #endif
1.32 christos 584: #ifndef HAVE_NBTOOL_CONFIG_H
1.2 christos 585: if (drvctl(device_name, &secsz, &mediasz) == -1)
586: goto close;
1.32 christos 587: #endif
1.36 ! christos 588: if (secsz == 0 || mediasz == 0)
! 589: errx(1, "Please specify sector/media size");
1.1 christos 590: } else {
1.36 ! christos 591: if (secsz == 0)
! 592: secsz = 512; /* Fixed size for files. */
! 593: if (mediasz == 0) {
! 594: if (sb.st_size % secsz) {
! 595: errno = EINVAL;
! 596: goto close;
! 597: }
! 598: mediasz = sb.st_size;
1.1 christos 599: }
600: }
601:
602: /*
603: * We require an absolute minimum of 6 sectors. One for the MBR,
604: * 2 for the GPT header, 2 for the GPT table and one to hold some
605: * user data. Let's catch this extreme border case here so that
606: * we don't have to worry about it later.
607: */
608: if (mediasz / secsz < 6) {
609: errno = ENODEV;
610: goto close;
611: }
612:
613: if (verbose)
614: warnx("%s: mediasize=%llu; sectorsize=%u; blocks=%llu",
615: device_name, (long long)mediasz, secsz,
616: (long long)(mediasz / secsz));
617:
618: map_init(mediasz / secsz);
619:
620: if (gpt_mbr(fd, 0LL) == -1)
621: goto close;
1.11 christos 622: if ((found = gpt_gpt(fd, 1LL, 1)) == -1)
1.1 christos 623: goto close;
1.11 christos 624: if (gpt_gpt(fd, mediasz / secsz - 1LL, found) == -1)
1.1 christos 625: goto close;
626:
627: return (fd);
628:
629: close:
630: close(fd);
631: return (-1);
632: }
633:
634: void
635: gpt_close(int fd)
636: {
637: /* XXX post processing? */
638: close(fd);
639: }
640:
641: static struct {
642: int (*fptr)(int, char *[]);
643: const char *name;
644: } cmdsw[] = {
645: { cmd_add, "add" },
1.32 christos 646: #ifndef HAVE_NBTOOL_CONFIG_H
1.27 jnemeth 647: { cmd_backup, "backup" },
1.32 christos 648: #endif
1.13 jakllsch 649: { cmd_biosboot, "biosboot" },
1.1 christos 650: { cmd_create, "create" },
651: { cmd_destroy, "destroy" },
652: { NULL, "help" },
653: { cmd_label, "label" },
654: { cmd_migrate, "migrate" },
655: { cmd_recover, "recover" },
656: { cmd_remove, "remove" },
657: { NULL, "rename" },
1.22 jnemeth 658: { cmd_resize, "resize" },
1.29 jnemeth 659: { cmd_resizedisk, "resizedisk" },
1.32 christos 660: #ifndef HAVE_NBTOOL_CONFIG_H
1.28 jnemeth 661: { cmd_restore, "restore" },
1.32 christos 662: #endif
1.26 jnemeth 663: { cmd_set, "set" },
1.1 christos 664: { cmd_show, "show" },
1.30 jnemeth 665: { cmd_type, "type" },
1.26 jnemeth 666: { cmd_unset, "unset" },
1.1 christos 667: { NULL, "verify" },
668: { NULL, NULL }
669: };
670:
1.15 joerg 671: __dead static void
1.1 christos 672: usage(void)
673: {
1.32 christos 674: extern const char addmsg1[], addmsg2[], biosbootmsg[];
1.27 jnemeth 675: extern const char createmsg[], destroymsg[], labelmsg1[], labelmsg2[];
676: extern const char labelmsg3[], migratemsg[], recovermsg[], removemsg1[];
1.29 jnemeth 677: extern const char removemsg2[], resizemsg[], resizediskmsg[];
1.32 christos 678: extern const char setmsg[], showmsg[], typemsg1[];
1.30 jnemeth 679: extern const char typemsg2[], typemsg3[], unsetmsg[];
1.32 christos 680: #ifndef HAVE_NBTOOL_CONFIG_H
681: extern const char backupmsg[], restoremsg[];
682: #endif
1.36 ! christos 683: const char *p = getprogname();
! 684: const char *f =
! 685: "[-rv] [-m <mediasize>] [-p <partitionnum>] [-s <sectorsize>]";
1.1 christos 686:
687: fprintf(stderr,
1.36 ! christos 688: "Usage: %s %s <command> [<args>]\n", p, f);
! 689: fprintf(stderr,
! 690: "Commands:\n"
1.32 christos 691: #ifndef HAVE_NBTOOL_CONFIG_H
1.36 ! christos 692: " %s\n"
! 693: " %s\n"
1.32 christos 694: #endif
1.36 ! christos 695: " %s\n"
! 696: " %s\n"
! 697: " %s\n"
! 698: " %s\n"
! 699: " %s\n"
! 700: " %s\n"
! 701: " %s\n"
! 702: " %s\n"
! 703: " %s\n"
! 704: " %s\n"
! 705: " %s\n"
! 706: " %s\n"
! 707: " %s\n"
! 708: " %s\n"
! 709: " %s\n"
! 710: " %s\n"
! 711: " %s\n"
! 712: " %s\n"
! 713: " %s\n"
! 714: " %s\n",
! 715: addmsg1, addmsg2,
1.32 christos 716: #ifndef HAVE_NBTOOL_CONFIG_H
1.36 ! christos 717: backupmsg,
1.32 christos 718: #endif
1.36 ! christos 719: biosbootmsg, createmsg, destroymsg,
! 720: labelmsg1, labelmsg2, labelmsg3,
! 721: migratemsg, recovermsg,
! 722: removemsg1, removemsg2,
! 723: resizemsg, resizediskmsg,
1.32 christos 724: #ifndef HAVE_NBTOOL_CONFIG_H
1.36 ! christos 725: restoremsg,
1.32 christos 726: #endif
1.36 ! christos 727: setmsg, showmsg,
! 728: typemsg1, typemsg2, typemsg3,
! 729: unsetmsg);
1.1 christos 730: exit(1);
731: }
732:
733: static void
734: prefix(const char *cmd)
735: {
736: char *pfx;
737: const char *prg;
738:
739: prg = getprogname();
740: pfx = malloc(strlen(prg) + strlen(cmd) + 2);
741: /* Don't bother failing. It's not important */
742: if (pfx == NULL)
743: return;
744:
745: sprintf(pfx, "%s %s", prg, cmd);
746: setprogname(pfx);
747: }
748:
749: int
750: main(int argc, char *argv[])
751: {
752: char *cmd, *p;
753: int ch, i;
754:
755: /* Get the generic options */
1.36 ! christos 756: while ((ch = getopt(argc, argv, "m:p:rs:v")) != -1) {
1.1 christos 757: switch(ch) {
1.36 ! christos 758: case 'm':
! 759: if (mediasz > 0)
! 760: usage();
! 761: mediasz = strtoul(optarg, &p, 10);
! 762: if (*p != 0 || mediasz < 1)
! 763: usage();
! 764: break;
1.1 christos 765: case 'p':
766: if (parts > 0)
767: usage();
1.3 riz 768: parts = strtoul(optarg, &p, 10);
1.1 christos 769: if (*p != 0 || parts < 1)
770: usage();
771: break;
772: case 'r':
773: readonly = 1;
774: break;
1.36 ! christos 775: case 's':
! 776: if (secsz > 0)
! 777: usage();
! 778: secsz = strtoul(optarg, &p, 10);
! 779: if (*p != 0 || secsz < 1)
! 780: usage();
! 781: break;
1.1 christos 782: case 'v':
783: verbose++;
784: break;
785: default:
786: usage();
787: }
788: }
789: if (!parts)
790: parts = 128;
791:
792: if (argc == optind)
793: usage();
794:
795: cmd = argv[optind++];
796: for (i = 0; cmdsw[i].name != NULL && strcmp(cmd, cmdsw[i].name); i++);
797:
798: if (cmdsw[i].fptr == NULL)
799: errx(1, "unknown command: %s", cmd);
800:
801: prefix(cmd);
802: return ((*cmdsw[i].fptr)(argc, argv));
803: }
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