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show.c revision 1.33 
      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 1.33 2015/12/25 12:16:03 wiz 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 		printf("%d", mbr->mbr_part[i].part_typ);
    118 		break;
    119 	case MAP_TYPE_GPT_PART:
    120 		printf("GPT part ");
    121 		ent = map_data;
    122 		if (flags & SHOW_LABEL) {
    123 			utf16_to_utf8(ent->ent_name, utfbuf,
    124 			    sizeof(utfbuf));
    125 			b = (char *)utfbuf;
    126 		} else if (flags & SHOW_GUID) {
    127 			gpt_uuid_snprintf( buf, sizeof(buf), "%d",
    128 			    ent->ent_guid);
    129 		} else if (flags & SHOW_UUID) {
    130 			gpt_uuid_snprintf(buf, sizeof(buf),
    131 			    "%d", ent->ent_type);
    132 		} else {
    133 			gpt_uuid_snprintf(buf, sizeof(buf), "%ls",
    134 			    ent->ent_type);
    135 		}
    136 		printf("- %s", b);
    137 		break;
    138 	case MAP_TYPE_PMBR:
    139 		printf("PMBR");
    140 		break;
    141 	default:
    142 		printf("Unknown %#x", map_type);
    143 		break;
    144 	}
    145 }
    146 
    147 static int
    148 show(gpt_t gpt, int show)
    149 {
    150 	map_t m;
    151 
    152 	printf("  %*s", gpt->lbawidth, "start");
    153 	printf("  %*s", gpt->lbawidth, "size");
    154 	printf("  index  contents\n");
    155 
    156 	m = map_first(gpt);
    157 	while (m != NULL) {
    158 		printf("  %*llu", gpt->lbawidth, (long long)m->map_start);
    159 		printf("  %*llu", gpt->lbawidth, (long long)m->map_size);
    160 		putchar(' ');
    161 		putchar(' ');
    162 		if (m->map_index > 0)
    163 			printf("%5d", m->map_index);
    164 		else
    165 			printf("     ");
    166 		putchar(' ');
    167 		putchar(' ');
    168 		print_part_type(m->map_type, show, m->map_data, m->map_start);
    169 		putchar('\n');
    170 		m = m->map_next;
    171 	}
    172 	return 0;
    173 }
    174 
    175 static int
    176 show_one(gpt_t gpt, unsigned int entry)
    177 {
    178 	map_t m;
    179 	struct gpt_ent *ent;
    180 	char s1[128], s2[128];
    181 	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
    182 
    183 	for (m = map_first(gpt); m != NULL; m = m->map_next)
    184 		if (entry == m->map_index)
    185 			break;
    186 	if (m == NULL) {
    187 		gpt_warnx(gpt, "Could not find index %d", entry);
    188 		return -1;
    189 	}
    190 	ent = m->map_data;
    191 
    192 	printf("Details for index %d:\n", entry);
    193 	gpt_show_num("Start", (uintmax_t)(m->map_start * gpt->secsz));
    194 	gpt_show_num("Size", (uintmax_t)(m->map_size * gpt->secsz));
    195 
    196 	gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type);
    197 	gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type);
    198 	if (strcmp(s1, s2) == 0)
    199 		strlcpy(s1, "unknown", sizeof(s1));
    200 	printf("Type: %s (%s)\n", s1, s2);
    201 
    202 	gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid);
    203 	printf("GUID: %s\n", s2);
    204 
    205 	utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
    206 	printf("Label: %s\n", (char *)utfbuf);
    207 
    208 	printf("Attributes: ");
    209 	if (ent->ent_attr == 0) {
    210 		printf("None\n");
    211 	} else  {
    212 		char buf[1024];
    213 		printf("%s\n", gpt_attr_list(buf, sizeof(buf), ent->ent_attr));
    214 	}
    215 
    216 	return 0;
    217 }
    218 
    219 static int
    220 show_all(gpt_t gpt)
    221 {
    222 	map_t m;
    223 	struct gpt_ent *ent;
    224 	char s1[128], s2[128];
    225 	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
    226 #define PFX "                                 "
    227 
    228 	printf("  %*s", gpt->lbawidth, "start");
    229 	printf("  %*s", gpt->lbawidth, "size");
    230 	printf("  index  contents\n");
    231 
    232 	m = map_first(gpt);
    233 	while (m != NULL) {
    234 		printf("  %*llu", gpt->lbawidth, (long long)m->map_start);
    235 		printf("  %*llu", gpt->lbawidth, (long long)m->map_size);
    236 		putchar(' ');
    237 		putchar(' ');
    238 		if (m->map_index > 0) {
    239 			printf("%5d  ", m->map_index);
    240 			print_part_type(m->map_type, 0, m->map_data,
    241 			    m->map_start);
    242 			putchar('\n');
    243 
    244 			ent = m->map_data;
    245 
    246 			gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type);
    247 			gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type);
    248 			if (strcmp(s1, s2) == 0)
    249 				strlcpy(s1, "unknown", sizeof(s1));
    250 			printf(PFX "Type: %s (%s)\n", s1, s2);
    251 
    252 			gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid);
    253 			printf(PFX "GUID: %s\n", s2);
    254 
    255 			utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
    256 			printf(PFX "Label: %s\n", (char *)utfbuf);
    257 
    258 			printf(PFX "Attributes: ");
    259 			if (ent->ent_attr == 0) {
    260 				printf("None\n");
    261 			} else  {
    262 				char buf[1024];
    263 
    264 				printf("%s\n", gpt_attr_list(buf, sizeof(buf),
    265 				    ent->ent_attr));
    266 			}
    267 		} else {
    268 			printf("       ");
    269 			print_part_type(m->map_type, 0, m->map_data,
    270 			    m->map_start);
    271 			putchar('\n');
    272 		}
    273 		m = m->map_next;
    274 	}
    275 	return 0;
    276 }
    277 
    278 static int
    279 cmd_show(gpt_t gpt, int argc, char *argv[])
    280 {
    281 	int ch;
    282 	int xshow = 0;
    283 	unsigned int entry = 0;
    284 
    285 	while ((ch = getopt(argc, argv, "gi:lua")) != -1) {
    286 		switch(ch) {
    287 		case 'a':
    288 			xshow |= SHOW_ALL;
    289 			break;
    290 		case 'g':
    291 			xshow |= SHOW_GUID;
    292 			break;
    293 		case 'i':
    294 			if (gpt_uint_get(&entry) == -1)
    295 				return usage();
    296 			break;
    297 		case 'l':
    298 			xshow |= SHOW_LABEL;
    299 			break;
    300 		case 'u':
    301 			xshow |= SHOW_UUID;
    302 			break;
    303 		default:
    304 			return usage();
    305 		}
    306 	}
    307 
    308 	if (argc != optind)
    309 		return usage();
    310 
    311 	if (xshow & SHOW_ALL)
    312 		return show_all(gpt);
    313 
    314 	return entry > 0 ? show_one(gpt, entry) : show(gpt, xshow);
    315 }
    316