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show.c revision 1.36 
      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 
     27 #if HAVE_NBTOOL_CONFIG_H
     28 #include "nbtool_config.h"
     29 #endif
     30 
     31 #include <sys/cdefs.h>
     32 #ifdef __FBSDID
     33 __FBSDID("$FreeBSD: src/sbin/gpt/show.c,v 1.14 2006/06/22 22:22:32 marcel Exp $");
     34 #endif
     35 #ifdef __RCSID
     36 __RCSID("$NetBSD: show.c,v 1.36 2016/05/31 02:29:54 dholland Exp $");
     37 #endif
     38 
     39 #include <sys/types.h>
     40 
     41 #include <err.h>
     42 #include <stddef.h>
     43 #include <stdio.h>
     44 #include <stdlib.h>
     45 #include <string.h>
     46 #include <unistd.h>
     47 
     48 #include "map.h"
     49 #include "gpt.h"
     50 #include "gpt_private.h"
     51 
     52 static int cmd_show(gpt_t, int, char *[]);
     53 
     54 static const char *showhelp[] = {
     55 	"[-aglu] [-i index]",
     56 };
     57 
     58 #define SHOW_UUID  1
     59 #define SHOW_GUID  2
     60 #define SHOW_LABEL 4
     61 #define SHOW_ALL   8
     62 
     63 struct gpt_cmd c_show = {
     64 	"show",
     65 	cmd_show,
     66 	showhelp, __arraycount(showhelp),
     67 	GPT_READONLY,
     68 };
     69 
     70 #define usage() gpt_usage(NULL, &c_show)
     71 
     72 static void
     73 print_part_type(int map_type, int flags, void *map_data, off_t map_start)
     74 {
     75 	off_t start;
     76 	map_t p;
     77 	struct mbr *mbr;
     78 	struct gpt_ent *ent;
     79 	unsigned int i;
     80 	char buf[128], *b = buf;
     81 	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
     82 
     83 	switch (map_type) {
     84 	case MAP_TYPE_UNUSED:
     85 		printf("Unused");
     86 		break;
     87 	case MAP_TYPE_MBR:
     88 		if (map_start != 0)
     89 			printf("Extended ");
     90 		printf("MBR");
     91 		break;
     92 	case MAP_TYPE_PRI_GPT_HDR:
     93 		printf("Pri GPT header");
     94 		break;
     95 	case MAP_TYPE_SEC_GPT_HDR:
     96 		printf("Sec GPT header");
     97 		break;
     98 	case MAP_TYPE_PRI_GPT_TBL:
     99 		printf("Pri GPT table");
    100 		break;
    101 	case MAP_TYPE_SEC_GPT_TBL:
    102 		printf("Sec GPT table");
    103 		break;
    104 	case MAP_TYPE_MBR_PART:
    105 		p = map_data;
    106 		if (p->map_start != 0)
    107 			printf("Extended ");
    108 		printf("MBR part ");
    109 		mbr = p->map_data;
    110 		for (i = 0; i < 4; i++) {
    111 			start = le16toh(mbr->mbr_part[i].part_start_hi);
    112 			start = (start << 16) +
    113 			    le16toh(mbr->mbr_part[i].part_start_lo);
    114 			if (map_start == p->map_start + start)
    115 				break;
    116 		}
    117 		if (i == 4) {
    118 			/* wasn't there */
    119 			printf("[partition not found?]");
    120 		} else {
    121 			printf("%d", mbr->mbr_part[i].part_typ);
    122 		}
    123 		break;
    124 	case MAP_TYPE_GPT_PART:
    125 		printf("GPT part ");
    126 		ent = map_data;
    127 		if (flags & SHOW_LABEL) {
    128 			utf16_to_utf8(ent->ent_name, utfbuf,
    129 			    sizeof(utfbuf));
    130 			b = (char *)utfbuf;
    131 		} else if (flags & SHOW_GUID) {
    132 			gpt_uuid_snprintf( buf, sizeof(buf), "%d",
    133 			    ent->ent_guid);
    134 		} else if (flags & SHOW_UUID) {
    135 			gpt_uuid_snprintf(buf, sizeof(buf),
    136 			    "%d", ent->ent_type);
    137 		} else {
    138 			gpt_uuid_snprintf(buf, sizeof(buf), "%ls",
    139 			    ent->ent_type);
    140 		}
    141 		printf("- %s", b);
    142 		break;
    143 	case MAP_TYPE_PMBR:
    144 		printf("PMBR");
    145 		break;
    146 	default:
    147 		printf("Unknown %#x", map_type);
    148 		break;
    149 	}
    150 }
    151 
    152 static int
    153 show(gpt_t gpt, int show)
    154 {
    155 	map_t m;
    156 
    157 	printf("  %*s", gpt->lbawidth, "start");
    158 	printf("  %*s", gpt->lbawidth, "size");
    159 	printf("  index  contents\n");
    160 
    161 	m = map_first(gpt);
    162 	while (m != NULL) {
    163 		printf("  %*llu", gpt->lbawidth, (long long)m->map_start);
    164 		printf("  %*llu", gpt->lbawidth, (long long)m->map_size);
    165 		putchar(' ');
    166 		putchar(' ');
    167 		if (m->map_index > 0)
    168 			printf("%5d", m->map_index);
    169 		else
    170 			printf("     ");
    171 		putchar(' ');
    172 		putchar(' ');
    173 		print_part_type(m->map_type, show, m->map_data, m->map_start);
    174 		putchar('\n');
    175 		m = m->map_next;
    176 	}
    177 	return 0;
    178 }
    179 
    180 static int
    181 show_one(gpt_t gpt, unsigned int entry)
    182 {
    183 	map_t m;
    184 	struct gpt_ent *ent;
    185 	char s1[128], s2[128];
    186 	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
    187 
    188 	for (m = map_first(gpt); m != NULL; m = m->map_next)
    189 		if (entry == m->map_index)
    190 			break;
    191 	if (m == NULL) {
    192 		gpt_warnx(gpt, "Could not find index %d", entry);
    193 		return -1;
    194 	}
    195 	ent = m->map_data;
    196 
    197 	printf("Details for index %d:\n", entry);
    198 	gpt_show_num("Start", (uintmax_t)(m->map_start * gpt->secsz));
    199 	gpt_show_num("Size", (uintmax_t)(m->map_size * gpt->secsz));
    200 
    201 	gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type);
    202 	gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type);
    203 	if (strcmp(s1, s2) == 0)
    204 		strlcpy(s1, "unknown", sizeof(s1));
    205 	printf("Type: %s (%s)\n", s1, s2);
    206 
    207 	gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid);
    208 	printf("GUID: %s\n", s2);
    209 
    210 	utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
    211 	printf("Label: %s\n", (char *)utfbuf);
    212 
    213 	printf("Attributes: ");
    214 	if (ent->ent_attr == 0) {
    215 		printf("None\n");
    216 	} else  {
    217 		char buf[1024];
    218 		printf("%s\n", gpt_attr_list(buf, sizeof(buf), ent->ent_attr));
    219 	}
    220 
    221 	return 0;
    222 }
    223 
    224 static int
    225 show_all(gpt_t gpt)
    226 {
    227 	map_t m;
    228 	struct gpt_ent *ent;
    229 	char s1[128], s2[128];
    230 #ifdef HN_AUTOSCALE
    231 	char human_num[8];
    232 #endif
    233 	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
    234 #define PFX "                                 "
    235 
    236 	printf("  %*s", gpt->lbawidth, "start");
    237 	printf("  %*s", gpt->lbawidth, "size");
    238 	printf("  index  contents\n");
    239 
    240 	m = map_first(gpt);
    241 	while (m != NULL) {
    242 		printf("  %*llu", gpt->lbawidth, (long long)m->map_start);
    243 		printf("  %*llu", gpt->lbawidth, (long long)m->map_size);
    244 		putchar(' ');
    245 		putchar(' ');
    246 		if (m->map_index > 0) {
    247 			printf("%5d  ", m->map_index);
    248 			print_part_type(m->map_type, 0, m->map_data,
    249 			    m->map_start);
    250 			putchar('\n');
    251 
    252 			ent = m->map_data;
    253 
    254 			gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type);
    255 			gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type);
    256 			if (strcmp(s1, s2) == 0)
    257 				strlcpy(s1, "unknown", sizeof(s1));
    258 			printf(PFX "Type: %s\n", s1);
    259 			printf(PFX "TypeID: %s\n", s2);
    260 
    261 			gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid);
    262 			printf(PFX "GUID: %s\n", s2);
    263 
    264 			printf(PFX "Size: ");
    265 #ifdef HN_AUTOSCALE
    266 			if (humanize_number(human_num, sizeof(human_num),
    267 			    (int64_t)(m->map_size * gpt->secsz),
    268 			    "", HN_AUTOSCALE, HN_B) < 0) {
    269 #endif
    270 				printf("%ju",
    271 				    (int64_t)(m->map_size * gpt->secsz));
    272 #ifdef HN_AUTOSCALE
    273 			} else {
    274 				printf("%s", human_num);
    275 			}
    276 #endif
    277 			putchar('\n');
    278 
    279 			utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
    280 			printf(PFX "Label: %s\n", (char *)utfbuf);
    281 
    282 			printf(PFX "Attributes: ");
    283 			if (ent->ent_attr == 0) {
    284 				printf("None\n");
    285 			} else  {
    286 				char buf[1024];
    287 
    288 				printf("%s\n", gpt_attr_list(buf, sizeof(buf),
    289 				    ent->ent_attr));
    290 			}
    291 		} else {
    292 			printf("       ");
    293 			print_part_type(m->map_type, 0, m->map_data,
    294 			    m->map_start);
    295 			putchar('\n');
    296 		}
    297 		m = m->map_next;
    298 	}
    299 	return 0;
    300 }
    301 
    302 static int
    303 cmd_show(gpt_t gpt, int argc, char *argv[])
    304 {
    305 	int ch;
    306 	int xshow = 0;
    307 	unsigned int entry = 0;
    308 
    309 	while ((ch = getopt(argc, argv, "gi:lua")) != -1) {
    310 		switch(ch) {
    311 		case 'a':
    312 			xshow |= SHOW_ALL;
    313 			break;
    314 		case 'g':
    315 			xshow |= SHOW_GUID;
    316 			break;
    317 		case 'i':
    318 			if (gpt_uint_get(gpt, &entry) == -1)
    319 				return usage();
    320 			break;
    321 		case 'l':
    322 			xshow |= SHOW_LABEL;
    323 			break;
    324 		case 'u':
    325 			xshow |= SHOW_UUID;
    326 			break;
    327 		default:
    328 			return usage();
    329 		}
    330 	}
    331 
    332 	if (argc != optind)
    333 		return usage();
    334 
    335 	if (xshow & SHOW_ALL)
    336 		return show_all(gpt);
    337 
    338 	return entry > 0 ? show_one(gpt, entry) : show(gpt, xshow);
    339 }
    340