664 lines
22 KiB
C
664 lines
22 KiB
C
/*-
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* Copyright (c) 2014 Andrey V. Elsukov <ae@FreeBSD.org>
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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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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/bio.h>
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#include <sys/gsb_crc32.h>
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#include <sys/disklabel.h>
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#include <sys/endian.h>
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#include <sys/gpt.h>
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#include <sys/kernel.h>
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#include <sys/kobj.h>
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#include <sys/limits.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/queue.h>
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#include <sys/sbuf.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <geom/geom.h>
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#include <geom/geom_int.h>
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#include <geom/part/g_part.h>
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#include "g_part_if.h"
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FEATURE(geom_part_bsd64, "GEOM partitioning class for 64-bit BSD disklabels");
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/* XXX: move this to sys/disklabel64.h */
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#define DISKMAGIC64 ((uint32_t)0xc4464c59)
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#define MAXPARTITIONS64 16
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#define RESPARTITIONS64 32
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struct disklabel64 {
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char d_reserved0[512]; /* reserved or unused */
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uint32_t d_magic; /* the magic number */
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uint32_t d_crc; /* crc32() d_magic through last part */
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uint32_t d_align; /* partition alignment requirement */
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uint32_t d_npartitions; /* number of partitions */
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struct uuid d_stor_uuid; /* unique uuid for label */
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uint64_t d_total_size; /* total size incl everything (bytes) */
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uint64_t d_bbase; /* boot area base offset (bytes) */
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/* boot area is pbase - bbase */
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uint64_t d_pbase; /* first allocatable offset (bytes) */
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uint64_t d_pstop; /* last allocatable offset+1 (bytes) */
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uint64_t d_abase; /* location of backup copy if not 0 */
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u_char d_packname[64];
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u_char d_reserved[64];
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/*
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* Note: offsets are relative to the base of the slice, NOT to
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* d_pbase. Unlike 32 bit disklabels the on-disk format for
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* a 64 bit disklabel remains slice-relative.
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*
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* An uninitialized partition has a p_boffset and p_bsize of 0.
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*
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* If p_fstype is not supported for a live partition it is set
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* to FS_OTHER. This is typically the case when the filesystem
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* is identified by its uuid.
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*/
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struct partition64 { /* the partition table */
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uint64_t p_boffset; /* slice relative offset, in bytes */
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uint64_t p_bsize; /* size of partition, in bytes */
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uint8_t p_fstype;
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uint8_t p_unused01; /* reserved, must be 0 */
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uint8_t p_unused02; /* reserved, must be 0 */
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uint8_t p_unused03; /* reserved, must be 0 */
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uint32_t p_unused04; /* reserved, must be 0 */
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uint32_t p_unused05; /* reserved, must be 0 */
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uint32_t p_unused06; /* reserved, must be 0 */
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struct uuid p_type_uuid;/* mount type as UUID */
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struct uuid p_stor_uuid;/* unique uuid for storage */
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} d_partitions[MAXPARTITIONS64];/* actually may be more */
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};
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struct g_part_bsd64_table {
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struct g_part_table base;
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uint32_t d_align;
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uint64_t d_bbase;
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uint64_t d_abase;
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struct uuid d_stor_uuid;
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char d_reserved0[512];
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u_char d_packname[64];
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u_char d_reserved[64];
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};
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struct g_part_bsd64_entry {
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struct g_part_entry base;
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uint8_t fstype;
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struct uuid type_uuid;
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struct uuid stor_uuid;
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};
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static int g_part_bsd64_add(struct g_part_table *, struct g_part_entry *,
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struct g_part_parms *);
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static int g_part_bsd64_bootcode(struct g_part_table *, struct g_part_parms *);
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static int g_part_bsd64_create(struct g_part_table *, struct g_part_parms *);
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static int g_part_bsd64_destroy(struct g_part_table *, struct g_part_parms *);
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static void g_part_bsd64_dumpconf(struct g_part_table *, struct g_part_entry *,
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struct sbuf *, const char *);
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static int g_part_bsd64_dumpto(struct g_part_table *, struct g_part_entry *);
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static int g_part_bsd64_modify(struct g_part_table *, struct g_part_entry *,
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struct g_part_parms *);
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static const char *g_part_bsd64_name(struct g_part_table *, struct g_part_entry *,
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char *, size_t);
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static int g_part_bsd64_probe(struct g_part_table *, struct g_consumer *);
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static int g_part_bsd64_read(struct g_part_table *, struct g_consumer *);
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static const char *g_part_bsd64_type(struct g_part_table *, struct g_part_entry *,
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char *, size_t);
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static int g_part_bsd64_write(struct g_part_table *, struct g_consumer *);
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static int g_part_bsd64_resize(struct g_part_table *, struct g_part_entry *,
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struct g_part_parms *);
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static kobj_method_t g_part_bsd64_methods[] = {
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KOBJMETHOD(g_part_add, g_part_bsd64_add),
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KOBJMETHOD(g_part_bootcode, g_part_bsd64_bootcode),
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KOBJMETHOD(g_part_create, g_part_bsd64_create),
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KOBJMETHOD(g_part_destroy, g_part_bsd64_destroy),
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KOBJMETHOD(g_part_dumpconf, g_part_bsd64_dumpconf),
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KOBJMETHOD(g_part_dumpto, g_part_bsd64_dumpto),
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KOBJMETHOD(g_part_modify, g_part_bsd64_modify),
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KOBJMETHOD(g_part_resize, g_part_bsd64_resize),
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KOBJMETHOD(g_part_name, g_part_bsd64_name),
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KOBJMETHOD(g_part_probe, g_part_bsd64_probe),
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KOBJMETHOD(g_part_read, g_part_bsd64_read),
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KOBJMETHOD(g_part_type, g_part_bsd64_type),
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KOBJMETHOD(g_part_write, g_part_bsd64_write),
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{ 0, 0 }
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};
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static struct g_part_scheme g_part_bsd64_scheme = {
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"BSD64",
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g_part_bsd64_methods,
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sizeof(struct g_part_bsd64_table),
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.gps_entrysz = sizeof(struct g_part_bsd64_entry),
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.gps_minent = MAXPARTITIONS64,
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.gps_maxent = MAXPARTITIONS64
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};
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G_PART_SCHEME_DECLARE(g_part_bsd64);
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MODULE_VERSION(geom_part_bsd64, 0);
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#define EQUUID(a, b) (memcmp(a, b, sizeof(struct uuid)) == 0)
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static struct uuid bsd64_uuid_unused = GPT_ENT_TYPE_UNUSED;
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static struct uuid bsd64_uuid_dfbsd_swap = GPT_ENT_TYPE_DRAGONFLY_SWAP;
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static struct uuid bsd64_uuid_dfbsd_ufs1 = GPT_ENT_TYPE_DRAGONFLY_UFS1;
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static struct uuid bsd64_uuid_dfbsd_vinum = GPT_ENT_TYPE_DRAGONFLY_VINUM;
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static struct uuid bsd64_uuid_dfbsd_ccd = GPT_ENT_TYPE_DRAGONFLY_CCD;
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static struct uuid bsd64_uuid_dfbsd_legacy = GPT_ENT_TYPE_DRAGONFLY_LEGACY;
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static struct uuid bsd64_uuid_dfbsd_hammer = GPT_ENT_TYPE_DRAGONFLY_HAMMER;
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static struct uuid bsd64_uuid_dfbsd_hammer2 = GPT_ENT_TYPE_DRAGONFLY_HAMMER2;
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static struct uuid bsd64_uuid_freebsd_boot = GPT_ENT_TYPE_FREEBSD_BOOT;
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static struct uuid bsd64_uuid_freebsd_nandfs = GPT_ENT_TYPE_FREEBSD_NANDFS;
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static struct uuid bsd64_uuid_freebsd_swap = GPT_ENT_TYPE_FREEBSD_SWAP;
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static struct uuid bsd64_uuid_freebsd_ufs = GPT_ENT_TYPE_FREEBSD_UFS;
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static struct uuid bsd64_uuid_freebsd_vinum = GPT_ENT_TYPE_FREEBSD_VINUM;
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static struct uuid bsd64_uuid_freebsd_zfs = GPT_ENT_TYPE_FREEBSD_ZFS;
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struct bsd64_uuid_alias {
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struct uuid *uuid;
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uint8_t fstype;
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int alias;
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};
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static struct bsd64_uuid_alias dfbsd_alias_match[] = {
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{ &bsd64_uuid_dfbsd_swap, FS_SWAP, G_PART_ALIAS_DFBSD_SWAP },
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{ &bsd64_uuid_dfbsd_ufs1, FS_BSDFFS, G_PART_ALIAS_DFBSD_UFS },
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{ &bsd64_uuid_dfbsd_vinum, FS_VINUM, G_PART_ALIAS_DFBSD_VINUM },
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{ &bsd64_uuid_dfbsd_ccd, FS_CCD, G_PART_ALIAS_DFBSD_CCD },
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{ &bsd64_uuid_dfbsd_legacy, FS_OTHER, G_PART_ALIAS_DFBSD_LEGACY },
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{ &bsd64_uuid_dfbsd_hammer, FS_HAMMER, G_PART_ALIAS_DFBSD_HAMMER },
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{ &bsd64_uuid_dfbsd_hammer2, FS_HAMMER2, G_PART_ALIAS_DFBSD_HAMMER2 },
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{ NULL, 0, 0}
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};
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static struct bsd64_uuid_alias fbsd_alias_match[] = {
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{ &bsd64_uuid_freebsd_boot, FS_OTHER, G_PART_ALIAS_FREEBSD_BOOT },
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{ &bsd64_uuid_freebsd_swap, FS_OTHER, G_PART_ALIAS_FREEBSD_SWAP },
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{ &bsd64_uuid_freebsd_ufs, FS_OTHER, G_PART_ALIAS_FREEBSD_UFS },
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{ &bsd64_uuid_freebsd_zfs, FS_OTHER, G_PART_ALIAS_FREEBSD_ZFS },
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{ &bsd64_uuid_freebsd_vinum, FS_OTHER, G_PART_ALIAS_FREEBSD_VINUM },
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{ &bsd64_uuid_freebsd_nandfs, FS_OTHER, G_PART_ALIAS_FREEBSD_NANDFS },
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{ NULL, 0, 0}
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};
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static int
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bsd64_parse_type(const char *type, struct g_part_bsd64_entry *entry)
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{
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struct uuid tmp;
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const struct bsd64_uuid_alias *uap;
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const char *alias;
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char *p;
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long lt;
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int error;
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if (type[0] == '!') {
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if (type[1] == '\0')
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return (EINVAL);
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lt = strtol(type + 1, &p, 0);
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/* The type specified as number */
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if (*p == '\0') {
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if (lt <= 0 || lt > 255)
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return (EINVAL);
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entry->fstype = lt;
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entry->type_uuid = bsd64_uuid_unused;
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return (0);
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}
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/* The type specified as uuid */
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error = parse_uuid(type + 1, &tmp);
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if (error != 0)
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return (error);
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if (EQUUID(&tmp, &bsd64_uuid_unused))
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return (EINVAL);
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for (uap = &dfbsd_alias_match[0]; uap->uuid != NULL; uap++) {
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if (EQUUID(&tmp, uap->uuid)) {
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/* Prefer fstype for known uuids */
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entry->type_uuid = bsd64_uuid_unused;
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entry->fstype = uap->fstype;
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return (0);
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}
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}
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entry->type_uuid = tmp;
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entry->fstype = FS_OTHER;
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return (0);
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}
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/* The type specified as symbolic alias name */
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for (uap = &fbsd_alias_match[0]; uap->uuid != NULL; uap++) {
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alias = g_part_alias_name(uap->alias);
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if (!strcasecmp(type, alias)) {
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entry->type_uuid = *uap->uuid;
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entry->fstype = uap->fstype;
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return (0);
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}
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}
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for (uap = &dfbsd_alias_match[0]; uap->uuid != NULL; uap++) {
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alias = g_part_alias_name(uap->alias);
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if (!strcasecmp(type, alias)) {
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entry->type_uuid = bsd64_uuid_unused;
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entry->fstype = uap->fstype;
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return (0);
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}
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}
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return (EINVAL);
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}
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static int
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g_part_bsd64_add(struct g_part_table *basetable, struct g_part_entry *baseentry,
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struct g_part_parms *gpp)
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{
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struct g_part_bsd64_entry *entry;
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if (gpp->gpp_parms & G_PART_PARM_LABEL)
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return (EINVAL);
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entry = (struct g_part_bsd64_entry *)baseentry;
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if (bsd64_parse_type(gpp->gpp_type, entry) != 0)
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return (EINVAL);
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kern_uuidgen(&entry->stor_uuid, 1);
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return (0);
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}
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static int
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g_part_bsd64_bootcode(struct g_part_table *basetable, struct g_part_parms *gpp)
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{
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return (EOPNOTSUPP);
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}
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#define PALIGN_SIZE (1024 * 1024)
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#define PALIGN_MASK (PALIGN_SIZE - 1)
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#define BLKSIZE (4 * 1024)
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#define BOOTSIZE (32 * 1024)
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#define DALIGN_SIZE (32 * 1024)
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static int
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g_part_bsd64_create(struct g_part_table *basetable, struct g_part_parms *gpp)
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{
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struct g_part_bsd64_table *table;
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struct g_part_entry *baseentry;
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struct g_provider *pp;
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uint64_t blkmask, pbase;
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uint32_t blksize, ressize;
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pp = gpp->gpp_provider;
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if (pp->mediasize < 2* PALIGN_SIZE)
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return (ENOSPC);
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/*
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* Use at least 4KB block size. Blksize is stored in the d_align.
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* XXX: Actually it is used just for calculate d_bbase and used
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* for better alignment in bsdlabel64(8).
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*/
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blksize = pp->sectorsize < BLKSIZE ? BLKSIZE: pp->sectorsize;
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blkmask = blksize - 1;
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/* Reserve enough space for RESPARTITIONS64 partitions. */
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ressize = offsetof(struct disklabel64, d_partitions[RESPARTITIONS64]);
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ressize = (ressize + blkmask) & ~blkmask;
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/*
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* Reserve enough space for bootcode and align first allocatable
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* offset to PALIGN_SIZE.
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* XXX: Currently DragonFlyBSD has 32KB bootcode, but the size could
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* be bigger, because it is possible change it (it is equal pbase-bbase)
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* in the bsdlabel64(8).
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*/
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pbase = ressize + ((BOOTSIZE + blkmask) & ~blkmask);
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pbase = (pbase + PALIGN_MASK) & ~PALIGN_MASK;
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/*
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* Take physical offset into account and make first allocatable
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* offset 32KB aligned to the start of the physical disk.
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* XXX: Actually there are no such restrictions, this is how
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* DragonFlyBSD behaves.
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*/
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pbase += DALIGN_SIZE - pp->stripeoffset % DALIGN_SIZE;
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table = (struct g_part_bsd64_table *)basetable;
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table->d_align = blksize;
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table->d_bbase = ressize / pp->sectorsize;
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table->d_abase = ((pp->mediasize - ressize) &
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~blkmask) / pp->sectorsize;
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kern_uuidgen(&table->d_stor_uuid, 1);
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basetable->gpt_first = pbase / pp->sectorsize;
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basetable->gpt_last = table->d_abase - 1; /* XXX */
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/*
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* Create 'c' partition and make it internal, so user will not be
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* able use it.
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*/
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baseentry = g_part_new_entry(basetable, RAW_PART + 1, 0, 0);
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baseentry->gpe_internal = 1;
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return (0);
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}
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static int
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g_part_bsd64_destroy(struct g_part_table *basetable, struct g_part_parms *gpp)
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{
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struct g_provider *pp;
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pp = LIST_FIRST(&basetable->gpt_gp->consumer)->provider;
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if (pp->sectorsize > offsetof(struct disklabel64, d_magic))
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basetable->gpt_smhead |= 1;
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else
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basetable->gpt_smhead |= 3;
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return (0);
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}
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static void
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g_part_bsd64_dumpconf(struct g_part_table *basetable,
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struct g_part_entry *baseentry, struct sbuf *sb, const char *indent)
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{
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struct g_part_bsd64_table *table;
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struct g_part_bsd64_entry *entry;
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char buf[sizeof(table->d_packname)];
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entry = (struct g_part_bsd64_entry *)baseentry;
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if (indent == NULL) {
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/* conftxt: libdisk compatibility */
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sbuf_printf(sb, " xs BSD64 xt %u", entry->fstype);
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} else if (entry != NULL) {
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/* confxml: partition entry information */
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sbuf_printf(sb, "%s<rawtype>%u</rawtype>\n", indent,
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entry->fstype);
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if (!EQUUID(&bsd64_uuid_unused, &entry->type_uuid)) {
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sbuf_printf(sb, "%s<type_uuid>", indent);
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sbuf_printf_uuid(sb, &entry->type_uuid);
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sbuf_cat(sb, "</type_uuid>\n");
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}
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sbuf_printf(sb, "%s<stor_uuid>", indent);
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sbuf_printf_uuid(sb, &entry->stor_uuid);
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sbuf_cat(sb, "</stor_uuid>\n");
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} else {
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/* confxml: scheme information */
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table = (struct g_part_bsd64_table *)basetable;
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sbuf_printf(sb, "%s<bootbase>%ju</bootbase>\n", indent,
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(uintmax_t)table->d_bbase);
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if (table->d_abase)
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sbuf_printf(sb, "%s<backupbase>%ju</backupbase>\n",
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indent, (uintmax_t)table->d_abase);
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sbuf_printf(sb, "%s<stor_uuid>", indent);
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sbuf_printf_uuid(sb, &table->d_stor_uuid);
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sbuf_cat(sb, "</stor_uuid>\n");
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sbuf_printf(sb, "%s<label>", indent);
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strncpy(buf, table->d_packname, sizeof(buf) - 1);
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buf[sizeof(buf) - 1] = '\0';
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g_conf_cat_escaped(sb, buf);
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sbuf_cat(sb, "</label>\n");
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}
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}
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static int
|
|
g_part_bsd64_dumpto(struct g_part_table *table, struct g_part_entry *baseentry)
|
|
{
|
|
struct g_part_bsd64_entry *entry;
|
|
|
|
/* Allow dumping to a swap partition. */
|
|
entry = (struct g_part_bsd64_entry *)baseentry;
|
|
if (entry->fstype == FS_SWAP ||
|
|
EQUUID(&entry->type_uuid, &bsd64_uuid_dfbsd_swap) ||
|
|
EQUUID(&entry->type_uuid, &bsd64_uuid_freebsd_swap))
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
g_part_bsd64_modify(struct g_part_table *basetable,
|
|
struct g_part_entry *baseentry, struct g_part_parms *gpp)
|
|
{
|
|
struct g_part_bsd64_entry *entry;
|
|
|
|
if (gpp->gpp_parms & G_PART_PARM_LABEL)
|
|
return (EINVAL);
|
|
|
|
entry = (struct g_part_bsd64_entry *)baseentry;
|
|
if (gpp->gpp_parms & G_PART_PARM_TYPE)
|
|
return (bsd64_parse_type(gpp->gpp_type, entry));
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
g_part_bsd64_resize(struct g_part_table *basetable,
|
|
struct g_part_entry *baseentry, struct g_part_parms *gpp)
|
|
{
|
|
struct g_part_bsd64_table *table;
|
|
struct g_provider *pp;
|
|
|
|
if (baseentry == NULL) {
|
|
pp = LIST_FIRST(&basetable->gpt_gp->consumer)->provider;
|
|
table = (struct g_part_bsd64_table *)basetable;
|
|
table->d_abase =
|
|
rounddown2(pp->mediasize - table->d_bbase * pp->sectorsize,
|
|
table->d_align) / pp->sectorsize;
|
|
basetable->gpt_last = table->d_abase - 1;
|
|
return (0);
|
|
}
|
|
baseentry->gpe_end = baseentry->gpe_start + gpp->gpp_size - 1;
|
|
return (0);
|
|
}
|
|
|
|
static const char *
|
|
g_part_bsd64_name(struct g_part_table *table, struct g_part_entry *baseentry,
|
|
char *buf, size_t bufsz)
|
|
{
|
|
|
|
snprintf(buf, bufsz, "%c", 'a' + baseentry->gpe_index - 1);
|
|
return (buf);
|
|
}
|
|
|
|
static int
|
|
g_part_bsd64_probe(struct g_part_table *table, struct g_consumer *cp)
|
|
{
|
|
struct g_provider *pp;
|
|
uint32_t v;
|
|
int error;
|
|
u_char *buf;
|
|
|
|
pp = cp->provider;
|
|
if (pp->mediasize < 2 * PALIGN_SIZE)
|
|
return (ENOSPC);
|
|
v = rounddown2(pp->sectorsize + offsetof(struct disklabel64, d_magic),
|
|
pp->sectorsize);
|
|
buf = g_read_data(cp, 0, v, &error);
|
|
if (buf == NULL)
|
|
return (error);
|
|
v = le32dec(buf + offsetof(struct disklabel64, d_magic));
|
|
g_free(buf);
|
|
return (v == DISKMAGIC64 ? G_PART_PROBE_PRI_HIGH: ENXIO);
|
|
}
|
|
|
|
static int
|
|
g_part_bsd64_read(struct g_part_table *basetable, struct g_consumer *cp)
|
|
{
|
|
struct g_part_bsd64_table *table;
|
|
struct g_part_bsd64_entry *entry;
|
|
struct g_part_entry *baseentry;
|
|
struct g_provider *pp;
|
|
struct disklabel64 *dlp;
|
|
uint64_t v64, sz;
|
|
uint32_t v32;
|
|
int error, index;
|
|
u_char *buf;
|
|
|
|
pp = cp->provider;
|
|
table = (struct g_part_bsd64_table *)basetable;
|
|
v32 = roundup2(sizeof(struct disklabel64), pp->sectorsize);
|
|
buf = g_read_data(cp, 0, v32, &error);
|
|
if (buf == NULL)
|
|
return (error);
|
|
|
|
dlp = (struct disklabel64 *)buf;
|
|
basetable->gpt_entries = le32toh(dlp->d_npartitions);
|
|
if (basetable->gpt_entries > MAXPARTITIONS64 ||
|
|
basetable->gpt_entries < 1)
|
|
goto invalid_label;
|
|
v32 = le32toh(dlp->d_crc);
|
|
dlp->d_crc = 0;
|
|
if (crc32(&dlp->d_magic, offsetof(struct disklabel64,
|
|
d_partitions[basetable->gpt_entries]) -
|
|
offsetof(struct disklabel64, d_magic)) != v32)
|
|
goto invalid_label;
|
|
table->d_align = le32toh(dlp->d_align);
|
|
if (table->d_align == 0 || (table->d_align & (pp->sectorsize - 1)))
|
|
goto invalid_label;
|
|
if (le64toh(dlp->d_total_size) > pp->mediasize)
|
|
goto invalid_label;
|
|
v64 = le64toh(dlp->d_pbase);
|
|
if (v64 % pp->sectorsize)
|
|
goto invalid_label;
|
|
basetable->gpt_first = v64 / pp->sectorsize;
|
|
v64 = le64toh(dlp->d_pstop);
|
|
if (v64 % pp->sectorsize)
|
|
goto invalid_label;
|
|
basetable->gpt_last = v64 / pp->sectorsize;
|
|
basetable->gpt_isleaf = 1;
|
|
v64 = le64toh(dlp->d_bbase);
|
|
if (v64 % pp->sectorsize)
|
|
goto invalid_label;
|
|
table->d_bbase = v64 / pp->sectorsize;
|
|
v64 = le64toh(dlp->d_abase);
|
|
if (v64 % pp->sectorsize)
|
|
goto invalid_label;
|
|
table->d_abase = v64 / pp->sectorsize;
|
|
le_uuid_dec(&dlp->d_stor_uuid, &table->d_stor_uuid);
|
|
for (index = basetable->gpt_entries - 1; index >= 0; index--) {
|
|
if (index == RAW_PART) {
|
|
/* Skip 'c' partition. */
|
|
baseentry = g_part_new_entry(basetable,
|
|
index + 1, 0, 0);
|
|
baseentry->gpe_internal = 1;
|
|
continue;
|
|
}
|
|
v64 = le64toh(dlp->d_partitions[index].p_boffset);
|
|
sz = le64toh(dlp->d_partitions[index].p_bsize);
|
|
if (sz == 0 && v64 == 0)
|
|
continue;
|
|
if (sz == 0 || (v64 % pp->sectorsize) || (sz % pp->sectorsize))
|
|
goto invalid_label;
|
|
baseentry = g_part_new_entry(basetable, index + 1,
|
|
v64 / pp->sectorsize, (v64 + sz) / pp->sectorsize - 1);
|
|
entry = (struct g_part_bsd64_entry *)baseentry;
|
|
le_uuid_dec(&dlp->d_partitions[index].p_type_uuid,
|
|
&entry->type_uuid);
|
|
le_uuid_dec(&dlp->d_partitions[index].p_stor_uuid,
|
|
&entry->stor_uuid);
|
|
entry->fstype = dlp->d_partitions[index].p_fstype;
|
|
}
|
|
bcopy(dlp->d_reserved0, table->d_reserved0,
|
|
sizeof(table->d_reserved0));
|
|
bcopy(dlp->d_packname, table->d_packname, sizeof(table->d_packname));
|
|
bcopy(dlp->d_reserved, table->d_reserved, sizeof(table->d_reserved));
|
|
g_free(buf);
|
|
return (0);
|
|
|
|
invalid_label:
|
|
g_free(buf);
|
|
return (EINVAL);
|
|
}
|
|
|
|
static const char *
|
|
g_part_bsd64_type(struct g_part_table *basetable, struct g_part_entry *baseentry,
|
|
char *buf, size_t bufsz)
|
|
{
|
|
struct g_part_bsd64_entry *entry;
|
|
struct bsd64_uuid_alias *uap;
|
|
|
|
entry = (struct g_part_bsd64_entry *)baseentry;
|
|
if (entry->fstype != FS_OTHER) {
|
|
for (uap = &dfbsd_alias_match[0]; uap->uuid != NULL; uap++)
|
|
if (uap->fstype == entry->fstype)
|
|
return (g_part_alias_name(uap->alias));
|
|
} else {
|
|
for (uap = &fbsd_alias_match[0]; uap->uuid != NULL; uap++)
|
|
if (EQUUID(uap->uuid, &entry->type_uuid))
|
|
return (g_part_alias_name(uap->alias));
|
|
for (uap = &dfbsd_alias_match[0]; uap->uuid != NULL; uap++)
|
|
if (EQUUID(uap->uuid, &entry->type_uuid))
|
|
return (g_part_alias_name(uap->alias));
|
|
}
|
|
if (EQUUID(&bsd64_uuid_unused, &entry->type_uuid))
|
|
snprintf(buf, bufsz, "!%d", entry->fstype);
|
|
else {
|
|
buf[0] = '!';
|
|
snprintf_uuid(buf + 1, bufsz - 1, &entry->type_uuid);
|
|
}
|
|
return (buf);
|
|
}
|
|
|
|
static int
|
|
g_part_bsd64_write(struct g_part_table *basetable, struct g_consumer *cp)
|
|
{
|
|
struct g_provider *pp;
|
|
struct g_part_entry *baseentry;
|
|
struct g_part_bsd64_entry *entry;
|
|
struct g_part_bsd64_table *table;
|
|
struct disklabel64 *dlp;
|
|
uint32_t v, sz;
|
|
int error, index;
|
|
|
|
pp = cp->provider;
|
|
table = (struct g_part_bsd64_table *)basetable;
|
|
sz = roundup2(sizeof(struct disklabel64), pp->sectorsize);
|
|
dlp = g_malloc(sz, M_WAITOK | M_ZERO);
|
|
|
|
memcpy(dlp->d_reserved0, table->d_reserved0,
|
|
sizeof(table->d_reserved0));
|
|
memcpy(dlp->d_packname, table->d_packname, sizeof(table->d_packname));
|
|
memcpy(dlp->d_reserved, table->d_reserved, sizeof(table->d_reserved));
|
|
le32enc(&dlp->d_magic, DISKMAGIC64);
|
|
le32enc(&dlp->d_align, table->d_align);
|
|
le32enc(&dlp->d_npartitions, basetable->gpt_entries);
|
|
le_uuid_enc(&dlp->d_stor_uuid, &table->d_stor_uuid);
|
|
le64enc(&dlp->d_total_size, pp->mediasize);
|
|
le64enc(&dlp->d_bbase, table->d_bbase * pp->sectorsize);
|
|
le64enc(&dlp->d_pbase, basetable->gpt_first * pp->sectorsize);
|
|
le64enc(&dlp->d_pstop, basetable->gpt_last * pp->sectorsize);
|
|
le64enc(&dlp->d_abase, table->d_abase * pp->sectorsize);
|
|
|
|
LIST_FOREACH(baseentry, &basetable->gpt_entry, gpe_entry) {
|
|
if (baseentry->gpe_deleted)
|
|
continue;
|
|
index = baseentry->gpe_index - 1;
|
|
entry = (struct g_part_bsd64_entry *)baseentry;
|
|
if (index == RAW_PART)
|
|
continue;
|
|
le64enc(&dlp->d_partitions[index].p_boffset,
|
|
baseentry->gpe_start * pp->sectorsize);
|
|
le64enc(&dlp->d_partitions[index].p_bsize, pp->sectorsize *
|
|
(baseentry->gpe_end - baseentry->gpe_start + 1));
|
|
dlp->d_partitions[index].p_fstype = entry->fstype;
|
|
le_uuid_enc(&dlp->d_partitions[index].p_type_uuid,
|
|
&entry->type_uuid);
|
|
le_uuid_enc(&dlp->d_partitions[index].p_stor_uuid,
|
|
&entry->stor_uuid);
|
|
}
|
|
/* Calculate checksum. */
|
|
v = offsetof(struct disklabel64,
|
|
d_partitions[basetable->gpt_entries]) -
|
|
offsetof(struct disklabel64, d_magic);
|
|
le32enc(&dlp->d_crc, crc32(&dlp->d_magic, v));
|
|
error = g_write_data(cp, 0, dlp, sz);
|
|
g_free(dlp);
|
|
return (error);
|
|
}
|