show.c revision 1.39 
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 1.39 2016/10/05 03:06:24 kre Exp $");
37#endif
38
39#include <sys/bootblock.h>
40#include <sys/types.h>
41
42#include <err.h>
43#include <stddef.h>
44#include <stdio.h>
45#include <stdlib.h>
46#include <string.h>
47#include <unistd.h>
48
49
50#include "map.h"
51#include "gpt.h"
52#include "gpt_private.h"
53
54static int cmd_show(gpt_t, int, char *[]);
55
56static const char *showhelp[] = {
57	"[-aglu] [-i index]",
58};
59
60#define SHOW_UUID  1
61#define SHOW_GUID  2
62#define SHOW_LABEL 4
63#define SHOW_ALL   8
64
65struct gpt_cmd c_show = {
66	"show",
67	cmd_show,
68	showhelp, __arraycount(showhelp),
69	GPT_READONLY,
70};
71
72#define usage() gpt_usage(NULL, &c_show)
73
74static void
75print_part_type(int map_type, int flags, void *map_data, off_t map_start)
76{
77	off_t start;
78	map_t p;
79	struct mbr *mbr;
80	struct gpt_ent *ent;
81	unsigned int i;
82	char buf[128], *b = buf;
83	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
84
85	switch (map_type) {
86	case MAP_TYPE_UNUSED:
87		printf("Unused");
88		break;
89	case MAP_TYPE_MBR:
90		if (map_start != 0)
91			printf("Extended ");
92		printf("MBR");
93		break;
94	case MAP_TYPE_PRI_GPT_HDR:
95		printf("Pri GPT header");
96		break;
97	case MAP_TYPE_SEC_GPT_HDR:
98		printf("Sec GPT header");
99		break;
100	case MAP_TYPE_PRI_GPT_TBL:
101		printf("Pri GPT table");
102		break;
103	case MAP_TYPE_SEC_GPT_TBL:
104		printf("Sec GPT table");
105		break;
106	case MAP_TYPE_MBR_PART:
107		p = map_data;
108		if (p->map_start != 0)
109			printf("Extended ");
110		printf("MBR part ");
111		mbr = p->map_data;
112		for (i = 0; i < 4; i++) {
113			start = le16toh(mbr->mbr_part[i].part_start_hi);
114			start = (start << 16) +
115			    le16toh(mbr->mbr_part[i].part_start_lo);
116			if (map_start == p->map_start + start)
117				break;
118		}
119		if (i == 4) {
120			/* wasn't there */
121			printf("[partition not found?]");
122		} else {
123			printf("%d%s", mbr->mbr_part[i].part_typ,
124			    mbr->mbr_part[i].part_flag == 0x80 ?
125			    " (active)" : "");
126		}
127		break;
128	case MAP_TYPE_GPT_PART:
129		printf("GPT part ");
130		ent = map_data;
131		if (flags & SHOW_LABEL) {
132			utf16_to_utf8(ent->ent_name, utfbuf,
133			    sizeof(utfbuf));
134			b = (char *)utfbuf;
135		} else if (flags & SHOW_GUID) {
136			gpt_uuid_snprintf( buf, sizeof(buf), "%d",
137			    ent->ent_guid);
138		} else if (flags & SHOW_UUID) {
139			gpt_uuid_snprintf(buf, sizeof(buf),
140			    "%d", ent->ent_type);
141		} else {
142			gpt_uuid_snprintf(buf, sizeof(buf), "%ls",
143			    ent->ent_type);
144		}
145		printf("- %s", b);
146		break;
147	case MAP_TYPE_PMBR:
148		printf("PMBR");
149		mbr = map_data;
150		if (mbr->mbr_part[0].part_typ == MBR_PTYPE_PMBR &&
151		    mbr->mbr_part[0].part_flag == 0x80)
152			    printf(" (active)");
153		break;
154	default:
155		printf("Unknown %#x", map_type);
156		break;
157	}
158}
159
160static int
161show(gpt_t gpt, int xshow)
162{
163	map_t m;
164
165	printf("  %*s", gpt->lbawidth, "start");
166	printf("  %*s", gpt->lbawidth, "size");
167	printf("  index  contents\n");
168
169	m = map_first(gpt);
170	while (m != NULL) {
171		printf("  %*llu", gpt->lbawidth, (long long)m->map_start);
172		printf("  %*llu", gpt->lbawidth, (long long)m->map_size);
173		putchar(' ');
174		putchar(' ');
175		if (m->map_index > 0)
176			printf("%5d", m->map_index);
177		else
178			printf("     ");
179		putchar(' ');
180		putchar(' ');
181		print_part_type(m->map_type, xshow, m->map_data, m->map_start);
182		putchar('\n');
183		m = m->map_next;
184	}
185	return 0;
186}
187
188static int
189show_one(gpt_t gpt, unsigned int entry)
190{
191	map_t m;
192	struct gpt_ent *ent;
193	char s1[128], s2[128];
194	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
195
196	for (m = map_first(gpt); m != NULL; m = m->map_next)
197		if (entry == m->map_index)
198			break;
199	if (m == NULL) {
200		gpt_warnx(gpt, "Could not find index %d", entry);
201		return -1;
202	}
203	ent = m->map_data;
204
205	printf("Details for index %d:\n", entry);
206	gpt_show_num("Start", (uintmax_t)(m->map_start * gpt->secsz));
207	gpt_show_num("Size", (uintmax_t)(m->map_size * gpt->secsz));
208
209	gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type);
210	gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type);
211	if (strcmp(s1, s2) == 0)
212		strlcpy(s1, "unknown", sizeof(s1));
213	printf("Type: %s (%s)\n", s1, s2);
214
215	gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid);
216	printf("GUID: %s\n", s2);
217
218	utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
219	printf("Label: %s\n", (char *)utfbuf);
220
221	printf("Attributes: ");
222	if (ent->ent_attr == 0) {
223		printf("None\n");
224	} else  {
225		char buf[1024];
226		printf("%s\n", gpt_attr_list(buf, sizeof(buf), ent->ent_attr));
227	}
228
229	return 0;
230}
231
232static int
233show_all(gpt_t gpt)
234{
235	map_t m;
236	struct gpt_ent *ent;
237	char s1[128], s2[128];
238#ifdef HN_AUTOSCALE
239	char human_num[8];
240#endif
241	uint8_t utfbuf[__arraycount(ent->ent_name) * 3 + 1];
242#define PFX "                                 "
243
244	printf("  %*s", gpt->lbawidth, "start");
245	printf("  %*s", gpt->lbawidth, "size");
246	printf("  index  contents\n");
247
248	m = map_first(gpt);
249	while (m != NULL) {
250		printf("  %*llu", gpt->lbawidth, (long long)m->map_start);
251		printf("  %*llu", gpt->lbawidth, (long long)m->map_size);
252		putchar(' ');
253		putchar(' ');
254		if (m->map_index > 0) {
255			printf("%5d  ", m->map_index);
256			print_part_type(m->map_type, 0, m->map_data,
257			    m->map_start);
258			putchar('\n');
259
260			ent = m->map_data;
261
262			gpt_uuid_snprintf(s1, sizeof(s1), "%s", ent->ent_type);
263			gpt_uuid_snprintf(s2, sizeof(s2), "%d", ent->ent_type);
264			if (strcmp(s1, s2) == 0)
265				strlcpy(s1, "unknown", sizeof(s1));
266			printf(PFX "Type: %s\n", s1);
267			printf(PFX "TypeID: %s\n", s2);
268
269			gpt_uuid_snprintf(s2, sizeof(s1), "%d", ent->ent_guid);
270			printf(PFX "GUID: %s\n", s2);
271
272			printf(PFX "Size: ");
273#ifdef HN_AUTOSCALE
274			if (humanize_number(human_num, sizeof(human_num),
275			    (int64_t)(m->map_size * gpt->secsz),
276			    "", HN_AUTOSCALE, HN_B) < 0) {
277#endif
278				printf("%ju",
279				    (int64_t)(m->map_size * gpt->secsz));
280#ifdef HN_AUTOSCALE
281			} else {
282				printf("%s", human_num);
283			}
284#endif
285			putchar('\n');
286
287			utf16_to_utf8(ent->ent_name, utfbuf, sizeof(utfbuf));
288			printf(PFX "Label: %s\n", (char *)utfbuf);
289
290			printf(PFX "Attributes: ");
291			if (ent->ent_attr == 0) {
292				printf("None\n");
293			} else  {
294				char buf[1024];
295
296				printf("%s\n", gpt_attr_list(buf, sizeof(buf),
297				    ent->ent_attr));
298			}
299		} else {
300			printf("       ");
301			print_part_type(m->map_type, 0, m->map_data,
302			    m->map_start);
303			putchar('\n');
304		}
305		m = m->map_next;
306	}
307	return 0;
308}
309
310static int
311cmd_show(gpt_t gpt, int argc, char *argv[])
312{
313	int ch;
314	int xshow = 0;
315	unsigned int entry = 0;
316
317	while ((ch = getopt(argc, argv, "gi:lua")) != -1) {
318		switch(ch) {
319		case 'a':
320			xshow |= SHOW_ALL;
321			break;
322		case 'g':
323			xshow |= SHOW_GUID;
324			break;
325		case 'i':
326			if (gpt_uint_get(gpt, &entry) == -1)
327				return usage();
328			break;
329		case 'l':
330			xshow |= SHOW_LABEL;
331			break;
332		case 'u':
333			xshow |= SHOW_UUID;
334			break;
335		default:
336			return usage();
337		}
338	}
339
340	if (argc != optind)
341		return usage();
342
343	if (xshow & SHOW_ALL)
344		return show_all(gpt);
345
346	return entry > 0 ? show_one(gpt, entry) : show(gpt, xshow);
347}
348