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NetBSD/sbin/gpt/backup.c

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/*-
* 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.
*/
#include <sys/cdefs.h>
#ifdef __FBSDID
__FBSDID("$FreeBSD: src/sbin/gpt/show.c,v 1.14 2006/06/22 22:22:32 marcel Exp $");
#endif
#ifdef __RCSID
__RCSID("$NetBSD: backup.c,v 1.1 2013/12/19 06:46:51 jnemeth Exp $");
#endif
#include <sys/bootblock.h>
#include <sys/types.h>
#include <err.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <prop/proplib.h>
#include "map.h"
#include "gpt.h"
const char backupmsg[] = "backup device ...";
__dead static void
usage_backup(void)
{
fprintf(stderr,
"usage: %s %s\n", getprogname(), backupmsg);
exit(1);
}
#define PROP_ERR(x) if (!(x)) { \
warn("proplib failure"); \
return; \
}
static void
backup(void)
{
uuid_t u;
map_t *m;
struct mbr *mbr;
struct gpt_ent *ent;
struct gpt_hdr *hdr;
unsigned int i;
prop_dictionary_t props, mbr_dict, gpt_dict, type_dict;
prop_array_t mbr_array, gpt_array;
prop_data_t propdata;
prop_number_t propnum;
prop_string_t propstr;
char *propext, *s;
bool rc;
props = prop_dictionary_create();
PROP_ERR(props);
m = map_first();
while (m != NULL) {
switch (m->map_type) {
case MAP_TYPE_MBR:
case MAP_TYPE_PMBR:
type_dict = prop_dictionary_create();
PROP_ERR(type_dict);
mbr = m->map_data;
propdata = prop_data_create_data_nocopy(mbr->mbr_code,
sizeof(mbr->mbr_code));
PROP_ERR(propdata);
rc = prop_dictionary_set(type_dict, "code", propdata);
PROP_ERR(rc);
mbr_array = NULL;
for (i = 0; i < 4; i++) {
if (mbr->mbr_part[i].part_typ !=
MBR_PTYPE_UNUSED) {
mbr_dict = prop_dictionary_create();
PROP_ERR(mbr_dict);
propnum = prop_number_create_integer(i);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"index", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_flag);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"flag", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_shd);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"start_head", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_ssect);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"start_sector", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_scyl);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"start_cylinder", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_typ);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"type", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_ehd);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"end_head", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(mbr->mbr_part[i].part_esect);
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"end_cylinder", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(le16toh(mbr->mbr_part[i].part_start_lo));
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"lba_start_low", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(le16toh(mbr->mbr_part[i].part_start_hi));
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"lba_start_high", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(le16toh(mbr->mbr_part[i].part_size_lo));
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"lba_size_low", propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(le16toh(mbr->mbr_part[i].part_size_hi));
PROP_ERR(propnum);
rc = prop_dictionary_set(mbr_dict,
"lba_size_high", propnum);
if (mbr_array == NULL) {
mbr_array = prop_array_create();
PROP_ERR(mbr_array);
}
rc = prop_array_add(mbr_array,
mbr_dict);
PROP_ERR(rc);
}
}
if (mbr_array != NULL) {
rc = prop_dictionary_set(type_dict,
"mbr_array", mbr_array);
PROP_ERR(rc);
prop_object_release(mbr_array);
}
rc = prop_dictionary_set(props, "MBR", type_dict);
PROP_ERR(rc);
prop_object_release(type_dict);
break;
case MAP_TYPE_PRI_GPT_HDR:
type_dict = prop_dictionary_create();
PROP_ERR(type_dict);
hdr = m->map_data;
propnum = prop_number_create_unsigned_integer(le32toh(hdr->hdr_revision));
PROP_ERR(propnum);
rc = prop_dictionary_set(type_dict, "revision",
propnum);
PROP_ERR(rc);
le_uuid_dec(hdr->hdr_guid, &u);
uuid_to_string(&u, &s, NULL);
propstr = prop_string_create_cstring(s);
free(s);
PROP_ERR(propstr);
rc = prop_dictionary_set(type_dict, "guid", propstr);
PROP_ERR(rc);
propnum = prop_number_create_integer(le32toh(hdr->hdr_entries));
PROP_ERR(propnum);
rc = prop_dictionary_set(type_dict, "entries", propnum);
PROP_ERR(rc);
rc = prop_dictionary_set(props, "GPT_HDR", type_dict);
PROP_ERR(rc);
prop_object_release(type_dict);
break;
case MAP_TYPE_PRI_GPT_TBL:
type_dict = prop_dictionary_create();
PROP_ERR(type_dict);
ent = m->map_data;
gpt_array = NULL;
for (i = 1, ent = m->map_data;
(char *)ent < (char *)(m->map_data) +
m->map_size * secsz; i++, ent++) {
if (uuid_is_nil((uuid_t *)&ent->ent_type, NULL))
continue;
gpt_dict = prop_dictionary_create();
PROP_ERR(gpt_dict);
propnum = prop_number_create_integer(i);
PROP_ERR(propnum);
rc = prop_dictionary_set(gpt_dict, "index",
propnum);
PROP_ERR(propnum);
le_uuid_dec(ent->ent_type, &u);
uuid_to_string(&u, &s, NULL);
propstr = prop_string_create_cstring(s);
free(s);
PROP_ERR(propstr);
rc = prop_dictionary_set(gpt_dict, "type",
propstr);
le_uuid_dec(ent->ent_guid, &u);
uuid_to_string(&u, &s, NULL);
propstr = prop_string_create_cstring(s);
free(s);
PROP_ERR(propstr);
rc = prop_dictionary_set(gpt_dict, "guid",
propstr);
PROP_ERR(propstr);
propnum = prop_number_create_unsigned_integer(le64toh(ent->ent_lba_start));
PROP_ERR(propnum);
rc = prop_dictionary_set(gpt_dict, "start",
propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(le64toh(ent->ent_lba_end));
PROP_ERR(rc);
rc = prop_dictionary_set(gpt_dict, "end",
propnum);
PROP_ERR(rc);
propnum = prop_number_create_unsigned_integer(le64toh(ent->ent_attr));
PROP_ERR(propnum);
rc = prop_dictionary_set(gpt_dict,
"attributes", propnum);
PROP_ERR(rc);
s = (char *)utf16_to_utf8(ent->ent_name);
if (*s != '\0') {
propstr = prop_string_create_cstring(s);
PROP_ERR(propstr);
rc = prop_dictionary_set(gpt_dict,
"name", propstr);
PROP_ERR(rc);
}
if (gpt_array == NULL) {
gpt_array = prop_array_create();
PROP_ERR(gpt_array);
}
rc = prop_array_add(gpt_array, gpt_dict);
PROP_ERR(rc);
}
if (gpt_array != NULL) {
rc = prop_dictionary_set(type_dict,
"gpt_array", gpt_array);
PROP_ERR(rc);
prop_object_release(gpt_array);
}
rc = prop_dictionary_set(props, "GPT_TBL", type_dict);
PROP_ERR(rc);
prop_object_release(type_dict);
break;
}
m = m->map_next;
}
propext = prop_dictionary_externalize(props);
PROP_ERR(propext);
prop_object_release(props);
fputs(propext, stdout);
}
int
cmd_backup(int argc, char *argv[])
{
int fd;
if (argc == optind)
usage_backup();
while (optind < argc) {
fd = gpt_open(argv[optind++]);
if (fd == -1) {
warn("unable to open device '%s'", device_name);
continue;
}
backup();
gpt_close(fd);
}
return (0);
}
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