2a944ecdef
a PMBR. Make sure the create command creates a PMBR as well (if not already present). o When parsing the MBR, explicitly check for a PMBR and create a PMBR map node if one is found. o When parsing the MBR, recurse to handle extended partitions. This allows us to flatten nested MBRs when migrating to a GPT. o Have the migrate command bail out if it encounters a partition it doesn't know how to migrate. This avoids data loss. o Change the output of the show command so that the UUIDs of the GPT partitions fit on the same line. o Show when partitions are extended partitions and add the PMBR type. Approved by: re (blanket)
152 lines
3.5 KiB
C
152 lines
3.5 KiB
C
/*
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* Copyright (c) 2002 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/gpt.h>
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#include <err.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <uuid.h>
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#include "map.h"
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#include "gpt.h"
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static void
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usage_show(void)
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{
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fprintf(stderr,
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"usage: %s device ...\n", getprogname());
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exit(1);
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}
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static void
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show(int fd __unused)
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{
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off_t start, end;
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map_t *m, *p;
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struct mbr *mbr;
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struct gpt_ent *ent;
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char *s;
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unsigned int i;
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printf(" %*s", lbawidth, "start");
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printf(" %*s", lbawidth, "end");
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printf(" %*s", lbawidth, "size");
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printf(" %s\n", "contents");
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m = map_first();
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while (m != NULL) {
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end = m->map_start + m->map_size - 1;
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printf(" %*llu", lbawidth, (long long)m->map_start);
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printf(" %*llu", lbawidth, (long long)end);
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printf(" %*llu", lbawidth, (long long)m->map_size);
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putchar(' '); putchar(' ');
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switch (m->map_type) {
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case MAP_TYPE_MBR:
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if (m->map_start != 0)
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printf("Extended ");
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printf("MBR");
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break;
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case MAP_TYPE_PRI_GPT_HDR:
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printf("Pri GPT header");
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break;
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case MAP_TYPE_SEC_GPT_HDR:
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printf("Sec GPT header");
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break;
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case MAP_TYPE_PRI_GPT_TBL:
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printf("Pri GPT table");
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break;
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case MAP_TYPE_SEC_GPT_TBL:
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printf("Sec GPT table");
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break;
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case MAP_TYPE_MBR_PART:
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p = m->map_data;
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if (p->map_start != 0)
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printf("Extended ");
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printf("MBR part ");
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mbr = p->map_data;
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for (i = 0; i < 4; i++) {
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start = mbr->mbr_part[i].part_start_hi << 16;
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start += mbr->mbr_part[i].part_start_lo;
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if (m->map_start == p->map_start + start)
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break;
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}
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printf("%d", mbr->mbr_part[i].part_typ);
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break;
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case MAP_TYPE_GPT_PART:
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printf("GPT part ");
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ent = m->map_data;
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uuid_to_string(&ent->ent_type, &s, NULL);
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printf("%s", s);
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free(s);
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break;
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case MAP_TYPE_PMBR:
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printf("PMBR");
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break;
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}
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putchar('\n');
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m = m->map_next;
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}
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}
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int
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cmd_show(int argc, char *argv[])
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{
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int ch, fd;
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while ((ch = getopt(argc, argv, "")) != -1) {
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switch(ch) {
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default:
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usage_show();
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}
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}
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if (argc == optind)
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usage_show();
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while (optind < argc) {
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fd = gpt_open(argv[optind++]);
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if (fd == -1) {
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warn("unable to open device '%s'", device_name);
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continue;
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}
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show(fd);
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gpt_close(fd);
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}
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return (0);
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}
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