show.c - chromiumos/third_party/gpt - Git at Google

 /*-
  * Copyright (c) 2002 Marcel Moolenaar
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

 #ifndef LINUX
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 #endif

 #include <sys/types.h>

 #include <err.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>

 #include "map.h"
 #include "gpt.h"

 static int show_label = 0;
 static int show_uuid = 0;

 static void
 usage_show(void)
 {

 	fprintf(stderr,
 	    "usage: %s [-lu] device ...\n", getprogname());
 	exit(1);
 }

 static const char *
 friendly(uuid_t *t)
 {
 	static uuid_t boot = GPT_ENT_TYPE_FREEBSD_BOOT;
 	static uuid_t efi_slice = GPT_ENT_TYPE_EFI;
 	static uuid_t mslinux = GPT_ENT_TYPE_MS_BASIC_DATA;
 	static uuid_t freebsd = GPT_ENT_TYPE_FREEBSD;
 	static uuid_t hfs = GPT_ENT_TYPE_APPLE_HFS;
 	static uuid_t linuxswap = GPT_ENT_TYPE_LINUX_SWAP;
 	static uuid_t msr = GPT_ENT_TYPE_MS_RESERVED;
 	static uuid_t swap = GPT_ENT_TYPE_FREEBSD_SWAP;
 	static uuid_t ufs = GPT_ENT_TYPE_FREEBSD_UFS;
 	static uuid_t vinum = GPT_ENT_TYPE_FREEBSD_VINUM;
 	static uuid_t zfs = GPT_ENT_TYPE_FREEBSD_ZFS;
 	static uuid_t chrome_kernel = GPT_ENT_TYPE_CHROMEOS_KERNEL;
 	static uuid_t chrome_rootfs = GPT_ENT_TYPE_CHROMEOS_ROOTFS;
 	static uuid_t chrome_future = GPT_ENT_TYPE_CHROMEOS_RESERVED;
 	static char buf[80];
 	char *s;

 	if (show_uuid)
 		goto unfriendly;

 	if (uuid_equal(t, &efi_slice, NULL))
 		return ("EFI System");
 	if (uuid_equal(t, &boot, NULL))
 		return ("FreeBSD boot");
 	if (uuid_equal(t, &swap, NULL))
 		return ("FreeBSD swap");
 	if (uuid_equal(t, &ufs, NULL))
 		return ("FreeBSD UFS/UFS2");
 	if (uuid_equal(t, &vinum, NULL))
 		return ("FreeBSD vinum");
 	if (uuid_equal(t, &zfs, NULL))
 		return ("FreeBSD ZFS");

 	if (uuid_equal(t, &freebsd, NULL))
 		return ("FreeBSD legacy");
 	if (uuid_equal(t, &mslinux, NULL))
 		return ("Linux/Windows");
 	if (uuid_equal(t, &linuxswap, NULL))
 		return ("Linux swap");
 	if (uuid_equal(t, &msr, NULL))
 		return ("Windows reserved");
 	if (uuid_equal(t, &hfs, NULL))
 		return ("Apple HFS");
 	if (uuid_equal(t, &chrome_kernel, NULL))
 		return ("Chrome OS kernel");
 	if (uuid_equal(t, &chrome_rootfs, NULL))
 		return ("Chrome OS rootfs");
 	if (uuid_equal(t, &chrome_future, NULL))
 		return ("Chrome OS reserved");

 unfriendly:
 	uuid_to_string(t, &s, NULL);
 	strlcpy(buf, s, sizeof buf);
 	free(s);
 	return (buf);
 }

 static void
 show(int fd __unused)
 {
 	uuid_t type;
 	off_t start;
 	map_t *m, *p;
 	struct mbr *mbr;
 	struct gpt_ent *ent;
 	unsigned int i;

 	printf("  %*s", lbawidth, "start");
 	printf("  %*s", lbawidth, "size");
 	printf("  index  contents\n");

 	m = map_first();
 	while (m != NULL) {
 		printf("  %*llu", lbawidth, (long long)m->map_start);
 		printf("  %*llu", lbawidth, (long long)m->map_size);
 		putchar(' ');
 		putchar(' ');
 		if (m->map_index > 0)
 			printf("%5d", m->map_index);
 		else
 			printf("     ");
 		putchar(' ');
 		putchar(' ');
 		switch (m->map_type) {
 		case MAP_TYPE_MBR:
 			if (m->map_start != 0)
 				printf("Extended ");
 			printf("MBR");
 			break;
 		case MAP_TYPE_PRI_GPT_HDR:
 			printf("Pri GPT header");
 			break;
 		case MAP_TYPE_SEC_GPT_HDR:
 			printf("Sec GPT header");
 			break;
 		case MAP_TYPE_PRI_GPT_TBL:
 			printf("Pri GPT table");
 			break;
 		case MAP_TYPE_SEC_GPT_TBL:
 			printf("Sec GPT table");
 			break;
 		case MAP_TYPE_MBR_PART:
 			p = m->map_data;
 			if (p->map_start != 0)
 				printf("Extended ");
 			printf("MBR part ");
 			mbr = p->map_data;
 			for (i = 0; i < 4; i++) {
 				start = le16toh(mbr->mbr_part[i].part_start_hi);
 				start = (start << 16) +
 				    le16toh(mbr->mbr_part[i].part_start_lo);
 				if (m->map_start == p->map_start + start)
 					break;
 			}
 			printf("%d", mbr->mbr_part[i].part_typ);
 			break;
 		case MAP_TYPE_GPT_PART:
 			printf("GPT part ");
 			ent = m->map_data;
 			if (show_label) {
 				printf("- \"%s\"",
 				    utf16_to_utf8(ent->ent_name));
 			} else {
 				le_uuid_dec(&ent->ent_type, &type);
 				printf("- %s", friendly(&type));
 			}

                         /* Show the uuid of each partition. */
                         {
                                 char *s;
                                 uuid_to_string(&ent->ent_uuid, &s, NULL);
                                 printf(" (ID: %s)", s);
                                 free(s);
                         }
 			break;
 		case MAP_TYPE_PMBR:
 			mbr = m->map_data;
                         if (le16toh(mbr->magic_number) == MBR_MAGIC)
                         {
                                 char *s;
                                 uuid_to_string(&mbr->boot_guid, &s, NULL);
                                 printf("PMBR (Boot GUID: %s)", s);
                                 free(s);
                         }
                         else
                         {
                             printf("PMBR (no magic)");
                         }
 			break;
 		}
 		putchar('\n');
 		m = m->map_next;
 	}
 }

 int
 cmd_show(int argc, char *argv[])
 {
 	int ch, fd;

 	while ((ch = getopt(argc, argv, "lu")) != -1) {
 		switch(ch) {
 		case 'l':
 			show_label = 1;
 			break;
 		case 'u':
 			show_uuid = 1;
 			break;
 		default:
 			usage_show();
 		}
 	}

 	if (argc == optind)
 		usage_show();

 	while (optind < argc) {
 		fd = gpt_open(argv[optind++]);
 		if (fd == -1) {
 			warn("unable to open device '%s'", device_name);
 			continue;
 		}

 		show(fd);

 		gpt_close(fd);
 	}

 	return (0);
 }
	/*-
	* Copyright (c) 2002 Marcel Moolenaar
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*/

	#ifndef LINUX
	#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");
	#endif

	#include <sys/types.h>

	#include <err.h>
	#include <stddef.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <unistd.h>

	#include "map.h"
	#include "gpt.h"

	static int show_label = 0;
	static int show_uuid = 0;

	static void
	usage_show(void)
	{

	fprintf(stderr,
	"usage: %s [-lu] device ...\n", getprogname());
	exit(1);
	}

	static const char *
	friendly(uuid_t *t)
	{
	static uuid_t boot = GPT_ENT_TYPE_FREEBSD_BOOT;
	static uuid_t efi_slice = GPT_ENT_TYPE_EFI;
	static uuid_t mslinux = GPT_ENT_TYPE_MS_BASIC_DATA;
	static uuid_t freebsd = GPT_ENT_TYPE_FREEBSD;
	static uuid_t hfs = GPT_ENT_TYPE_APPLE_HFS;
	static uuid_t linuxswap = GPT_ENT_TYPE_LINUX_SWAP;
	static uuid_t msr = GPT_ENT_TYPE_MS_RESERVED;
	static uuid_t swap = GPT_ENT_TYPE_FREEBSD_SWAP;
	static uuid_t ufs = GPT_ENT_TYPE_FREEBSD_UFS;
	static uuid_t vinum = GPT_ENT_TYPE_FREEBSD_VINUM;
	static uuid_t zfs = GPT_ENT_TYPE_FREEBSD_ZFS;
	static uuid_t chrome_kernel = GPT_ENT_TYPE_CHROMEOS_KERNEL;
	static uuid_t chrome_rootfs = GPT_ENT_TYPE_CHROMEOS_ROOTFS;
	static uuid_t chrome_future = GPT_ENT_TYPE_CHROMEOS_RESERVED;
	static char buf[80];
	char *s;

	if (show_uuid)
	goto unfriendly;

	if (uuid_equal(t, &efi_slice, NULL))
	return ("EFI System");
	if (uuid_equal(t, &boot, NULL))
	return ("FreeBSD boot");
	if (uuid_equal(t, &swap, NULL))
	return ("FreeBSD swap");
	if (uuid_equal(t, &ufs, NULL))
	return ("FreeBSD UFS/UFS2");
	if (uuid_equal(t, &vinum, NULL))
	return ("FreeBSD vinum");
	if (uuid_equal(t, &zfs, NULL))
	return ("FreeBSD ZFS");

	if (uuid_equal(t, &freebsd, NULL))
	return ("FreeBSD legacy");
	if (uuid_equal(t, &mslinux, NULL))
	return ("Linux/Windows");
	if (uuid_equal(t, &linuxswap, NULL))
	return ("Linux swap");
	if (uuid_equal(t, &msr, NULL))
	return ("Windows reserved");
	if (uuid_equal(t, &hfs, NULL))
	return ("Apple HFS");
	if (uuid_equal(t, &chrome_kernel, NULL))
	return ("Chrome OS kernel");
	if (uuid_equal(t, &chrome_rootfs, NULL))
	return ("Chrome OS rootfs");
	if (uuid_equal(t, &chrome_future, NULL))
	return ("Chrome OS reserved");

	unfriendly:
	uuid_to_string(t, &s, NULL);
	strlcpy(buf, s, sizeof buf);
	free(s);
	return (buf);
	}

	static void
	show(int fd __unused)
	{
	uuid_t type;
	off_t start;
	map_t m, p;
	struct mbr *mbr;
	struct gpt_ent *ent;
	unsigned int i;

	printf(" %*s", lbawidth, "start");
	printf(" %*s", lbawidth, "size");
	printf(" index contents\n");

	m = map_first();
	while (m != NULL) {
	printf(" %*llu", lbawidth, (long long)m->map_start);
	printf(" %*llu", lbawidth, (long long)m->map_size);
	putchar(' ');
	putchar(' ');
	if (m->map_index > 0)
	printf("%5d", m->map_index);
	else
	printf(" ");
	putchar(' ');
	putchar(' ');
	switch (m->map_type) {
	case MAP_TYPE_MBR:
	if (m->map_start != 0)
	printf("Extended ");
	printf("MBR");
	break;
	case MAP_TYPE_PRI_GPT_HDR:
	printf("Pri GPT header");
	break;
	case MAP_TYPE_SEC_GPT_HDR:
	printf("Sec GPT header");
	break;
	case MAP_TYPE_PRI_GPT_TBL:
	printf("Pri GPT table");
	break;
	case MAP_TYPE_SEC_GPT_TBL:
	printf("Sec GPT table");
	break;
	case MAP_TYPE_MBR_PART:
	p = m->map_data;
	if (p->map_start != 0)
	printf("Extended ");
	printf("MBR part ");
	mbr = p->map_data;
	for (i = 0; i < 4; i++) {
	start = le16toh(mbr->mbr_part[i].part_start_hi);
	start = (start << 16) +
	le16toh(mbr->mbr_part[i].part_start_lo);
	if (m->map_start == p->map_start + start)
	break;
	}
	printf("%d", mbr->mbr_part[i].part_typ);
	break;
	case MAP_TYPE_GPT_PART:
	printf("GPT part ");
	ent = m->map_data;
	if (show_label) {
	printf("- \"%s\"",
	utf16_to_utf8(ent->ent_name));
	} else {
	le_uuid_dec(&ent->ent_type, &type);
	printf("- %s", friendly(&type));
	}

	/* Show the uuid of each partition. */
	{
	char *s;
	uuid_to_string(&ent->ent_uuid, &s, NULL);
	printf(" (ID: %s)", s);
	free(s);
	}
	break;
	case MAP_TYPE_PMBR:
	mbr = m->map_data;
	if (le16toh(mbr->magic_number) == MBR_MAGIC)
	{
	char *s;
	uuid_to_string(&mbr->boot_guid, &s, NULL);
	printf("PMBR (Boot GUID: %s)", s);
	free(s);
	}
	else
	{
	printf("PMBR (no magic)");
	}
	break;
	}
	putchar('\n');
	m = m->map_next;
	}
	}

	int
	cmd_show(int argc, char *argv[])
	{
	int ch, fd;

	while ((ch = getopt(argc, argv, "lu")) != -1) {
	switch(ch) {
	case 'l':
	show_label = 1;
	break;
	case 'u':
	show_uuid = 1;
	break;
	default:
	usage_show();
	}
	}

	if (argc == optind)
	usage_show();

	while (optind < argc) {
	fd = gpt_open(argv[optind++]);
	if (fd == -1) {
	warn("unable to open device '%s'", device_name);
	continue;
	}

	show(fd);

	gpt_close(fd);
	}

	return (0);
	}