d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use linker sets to provide build-time selection of the schemes

Browse Source 
that need to be supported. Each scheme provides data and callbacks
for handling the scheme-specifics.
To this end, put each scheme in its own source file.
This commit is contained in:
marcel 2014-03-20 00:38:17 +00:00
parent 48a229f1cf
commit 7f983a3b38
11 changed files with 540 additions and 118 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Makefile
View File

@ -4,6 +4,16 @@ PROG= mkimg
SRCS= mkimg.c scheme.c
MAN= mkimg.8
# List of schemes to support
SRCS+= \
apm.c \
bsd.c \
ebr.c \
gpt.c \
mbr.c \
pc98.c \
vtoc8.c
BINDIR?=/usr/sbin
DPADD= ${LIBUTIL}

67
apm.c Normal file
View File

@ -0,0 +1,67 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/apm.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <stdlib.h>
#include "mkimg.h"
#include "scheme.h"
static struct mkimg_alias apm_aliases[] = {
{ NULL, 0 }
};
static off_t
apm_get_leader(u_int parts)
{
return (parts + 1);
}
static off_t
apm_get_trailer(u_int parts __unused)
{
return (0);
}
static struct mkimg_scheme apm_scheme = {
.name = "apm",
.description = "Apple Partition Map",
.nparts = 4096,
.padding = 0,
.aliases = apm_aliases,
.get_leader = apm_get_leader,
.get_trailer = apm_get_trailer
};
SCHEME_DEFINE(apm_scheme);

67
bsd.c Normal file
View File

@ -0,0 +1,67 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <uuid.h>
#include "mkimg.h"
#include "scheme.h"
static struct mkimg_alias bsd_aliases[] = {
{ NULL, 0 }
};
static off_t
bsd_get_leader(u_int parts __unused)
{
return (16);
}
static off_t
bsd_get_trailer(u_int parts __unused)
{
return (0);
}
static struct mkimg_scheme bsd_scheme = {
.name = "bsd",
.description = "GUID Partition Table",
.nparts = 20,
.padding = 0,
.aliases = bsd_aliases,
.get_leader = bsd_get_leader,
.get_trailer = bsd_get_trailer
};
SCHEME_DEFINE(bsd_scheme);

71
ebr.c Normal file
View File

@ -0,0 +1,71 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <uuid.h>
#include "mkimg.h"
#include "scheme.h"
static struct mkimg_alias ebr_aliases[] = {
{ NULL, 0 }
};
static off_t
ebr_get_leader(u_int parts __unused)
{
return (1);
}
static off_t
ebr_get_trailer(u_int parts __unused)
{
/*
* Compensate for having reserved a sector for the EBR after
* the last partition.
*/
return (-1);
}
static struct mkimg_scheme ebr_scheme = {
.name = "ebr",
.description = "Extended Boot Record",
.nparts = 4096,
.padding = 1, /* See ebr_get_trailer() above */
.aliases = ebr_aliases,
.get_leader = ebr_get_leader,
.get_trailer = ebr_get_trailer
};
SCHEME_DEFINE(ebr_scheme);

71
gpt.c Normal file
View File

@ -0,0 +1,71 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/gpt.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <uuid.h>
#include "mkimg.h"
#include "scheme.h"
static uuid_t gpt_uuid_efi = GPT_ENT_TYPE_EFI;
static struct mkimg_alias gpt_aliases[] = {
{ "efi", ALIAS_PTR(&gpt_uuid_efi) },
{ NULL, 0 }
};
static off_t
gpt_get_leader(u_int parts)
{
return (2 + (parts + 3) / 4);
}
static off_t
gpt_get_trailer(u_int parts)
{
return (1 + (parts + 3) / 4);
}
static struct mkimg_scheme gpt_scheme = {
.name = "gpt",
.description = "GUID Partition Table",
.nparts = 4096,
.padding = 0,
.aliases = gpt_aliases,
.get_leader = gpt_get_leader,
.get_trailer = gpt_get_trailer
};
SCHEME_DEFINE(gpt_scheme);

68
mbr.c Normal file
View File

@ -0,0 +1,68 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/diskmbr.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <uuid.h>
#include "mkimg.h"
#include "scheme.h"
static struct mkimg_alias mbr_aliases[] = {
{ NULL, 0 }
};
static off_t
mbr_get_leader(u_int parts __unused)
{
return (1);
}
static off_t
mbr_get_trailer(u_int parts __unused)
{
return (0);
}
static struct mkimg_scheme mbr_scheme = {
.name = "mbr",
.description = "Master Boot Record",
.nparts = NDOSPART,
.padding = 0,
.aliases = mbr_aliases,
.get_leader = mbr_get_leader,
.get_trailer = mbr_get_trailer
};
SCHEME_DEFINE(mbr_scheme);

20
mkimg.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2013 Juniper Networks, Inc.
* Copyright (c) 2013,2014 Juniper Networks, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -27,6 +27,7 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <sys/types.h>
@ -66,6 +67,8 @@ cleanup(void)
static void
usage(const char *why)
{
struct mkimg_scheme *s, **iter;
warnx("error: %s", why);
fprintf(stderr, "\nusage: %s <options>\n", getprogname());
@ -79,13 +82,10 @@ usage(const char *why)
fprintf(stderr, "\t-z\t\t- write a sparse file\n");
fprintf(stderr, " schemes:\n");
fprintf(stderr, "\tapm\t- Apple Partition Map\n");
fprintf(stderr, "\tbsd\t- BSD disk label\n");
fprintf(stderr, "\tebr\t- Extended Boot Record\n");
fprintf(stderr, "\tgpt\t- GUID Partition Table\n");
fprintf(stderr, "\tmbr\t- Master Boot Record\n");
fprintf(stderr, "\tpc98\t- PC-9800 disk partitions\n");
fprintf(stderr, "\tvtoc8\t- SMI VTOC8 disk labels\n");
SET_FOREACH(iter, schemes) {
s = *iter;
fprintf(stderr, "\t%s\t- %s\n", s->name, s->description);
}
fprintf(stderr, " partition specification:\n");
fprintf(stderr, "\t<type>::<size>\t- empty partition of given size\n");
@ -283,7 +283,7 @@ main(int argc, char *argv[])
errc(EX_DATAERR, error, "partition");
break;
case 's': /* SCHEME */
if (scheme_selected() != SCHEME_UNDEF)
if (scheme_selected() != NULL)
usage("multiple schemes given");
error = scheme_select(optarg);
if (error)
@ -299,7 +299,7 @@ main(int argc, char *argv[])
}
if (argc > optind)
usage("trailing arguments");
if (scheme_selected() == SCHEME_UNDEF)
if (scheme_selected() == NULL)
usage("no scheme");
if (nparts == 0)
usage("no partitions");

68
pc98.c Normal file
View File

@ -0,0 +1,68 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/diskpc98.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <stdlib.h>
#include <uuid.h>
#include "mkimg.h"
#include "scheme.h"
static struct mkimg_alias pc98_aliases[] = {
{ NULL, 0 }
};
static off_t
pc98_get_leader(u_int parts __unused)
{
return (2);
}
static off_t
pc98_get_trailer(u_int parts __unused)
{
return (0);
}
static struct mkimg_scheme pc98_scheme = {
.name = "pc98",
.description = "PC-9800 disk partitions",
.nparts = PC98_NPARTS,
.padding = 0,
.aliases = pc98_aliases,
.get_leader = pc98_get_leader,
.get_trailer = pc98_get_trailer
};
SCHEME_DEFINE(pc98_scheme);

117
scheme.c
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2013 Juniper Networks, Inc.
* Copyright (c) 2013,2014 Juniper Networks, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -28,10 +28,8 @@
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/diskmbr.h>
#include <sys/diskpc98.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <sys/vtoc.h>
#include <err.h>
#include <errno.h>
#include <stdint.h>
@ -41,40 +39,25 @@ __FBSDID("$FreeBSD$");
#include "mkimg.h"
#include "scheme.h"
static struct scheme {
const char *lexeme;
u_int token;
} schemes[] = {
{ .lexeme = "apm", .token = SCHEME_APM },
{ .lexeme = "bsd", .token = SCHEME_BSD },
{ .lexeme = "ebr", .token = SCHEME_EBR },
{ .lexeme = "gpt", .token = SCHEME_GPT },
{ .lexeme = "mbr", .token = SCHEME_MBR },
{ .lexeme = "pc98", .token = SCHEME_PC98 },
{ .lexeme = "vtoc8", .token = SCHEME_VTOC8 },
{ .lexeme = NULL, .token = SCHEME_UNDEF }
};
static u_int scheme = SCHEME_UNDEF;
static struct mkimg_scheme *scheme;
static u_int secsz = 512;
int
scheme_select(const char *spec)
{
struct scheme *s;
struct mkimg_scheme *s, **iter;
s = schemes;
while (s->lexeme != NULL) {
if (strcasecmp(spec, s->lexeme) == 0) {
scheme = s->token;
SET_FOREACH(iter, schemes) {
s = *iter;
if (strcasecmp(spec, s->name) == 0) {
scheme = s;
return (0);
}
s++;
}
return (EINVAL);
}
u_int
struct mkimg_scheme *
scheme_selected(void)
{
@ -82,11 +65,12 @@ scheme_selected(void)
}
int
scheme_check_part(struct part *p __unused)
scheme_check_part(struct part *p)
{
warnx("part: index=%u, type=`%s', offset=%ju, size=%ju", p->index,
p->type, (uintmax_t)p->offset, (uintmax_t)p->size);
warnx("part(%s): index=%u, type=`%s', offset=%ju, size=%ju",
scheme->name, p->index, p->type, (uintmax_t)p->offset,
(uintmax_t)p->size);
return (0);
}
@ -94,35 +78,8 @@ scheme_check_part(struct part *p __unused)
u_int
scheme_max_parts(void)
{
u_int parts;
switch (scheme) {
case SCHEME_APM:
parts = 4096;
break;
case SCHEME_BSD:
parts = 20;
break;
case SCHEME_EBR:
parts = 4096;
break;
case SCHEME_GPT:
parts = 4096;
break;
case SCHEME_MBR:
parts = NDOSPART;
break;
case SCHEME_PC98:
parts = PC98_NPARTS;
break;
case SCHEME_VTOC8:
parts = VTOC8_NPARTS;
break;
default:
parts = 0;
break;
}
return (parts);
return (scheme->nparts);
}
off_t
@ -130,32 +87,7 @@ scheme_first_offset(u_int parts)
{
off_t off;
switch (scheme) {
case SCHEME_APM:
off = parts + 1;
break;
case SCHEME_BSD:
off = 16;
break;
case SCHEME_EBR:
off = 1;
break;
case SCHEME_GPT:
off = 2 + (parts + 3) / 4;
break;
case SCHEME_MBR:
off = 1;
break;
case SCHEME_PC98:
off = 2;
break;
case SCHEME_VTOC8:
off = 1;
break;
default:
off = 0;
break;
}
off = scheme->get_leader(parts);
off *= secsz;
return (off);
}
@ -165,26 +97,15 @@ scheme_next_offset(off_t off, uint64_t sz)
{
sz = (sz + secsz - 1) & ~(secsz - 1);
if (scheme == SCHEME_EBR)
sz += secsz;
sz += scheme->padding * secsz;
return (off + sz);
}
void
scheme_write(int fd, off_t off)
{
off_t lim;
off_t trailer;
switch (scheme) {
case SCHEME_GPT:
lim = off + secsz * (1 + (nparts + 3) / 4);
break;
case SCHEME_EBR:
off -= secsz;
/* FALLTHROUGH */
default:
lim = off;
break;
}
ftruncate(fd, lim);
trailer = scheme->get_trailer(nparts) * secsz;
ftruncate(fd, off + trailer);
}

31
scheme.h
View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2013 Juniper Networks, Inc.
* Copyright (c) 2013,2014 Juniper Networks, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -29,17 +29,28 @@
#ifndef _MKIMG_SCHEME_H_
#define _MKIMG_SCHEME_H_
#define SCHEME_UNDEF 0
#define SCHEME_APM 1
#define SCHEME_BSD 2
#define SCHEME_EBR 3
#define SCHEME_GPT 4
#define SCHEME_MBR 5
#define SCHEME_PC98 6
#define SCHEME_VTOC8 7
struct mkimg_alias {
const char *name;
uintptr_t tp;
#define ALIAS_PTR(p) (uintptr_t)(p)
#define ALIAS_INT(i) (uintptr_t)(i)
};
struct mkimg_scheme {
const char *name;
const char *description;
int nparts;
int padding;
struct mkimg_alias *aliases;
off_t (*get_leader)(u_int);
off_t (*get_trailer)(u_int);
};
SET_DECLARE(schemes, struct mkimg_scheme);
#define SCHEME_DEFINE(nm) DATA_SET(schemes, nm)
int scheme_select(const char *);
u_int scheme_selected(void);
struct mkimg_scheme *scheme_selected(void);
int scheme_check_part(struct part *);
u_int scheme_max_parts(void);

68
vtoc8.c Normal file
View File

@ -0,0 +1,68 @@
/*-
* Copyright (c) 2014 Juniper Networks, Inc.
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <sys/vtoc.h>
#include <stdlib.h>
#include <uuid.h>
#include "mkimg.h"
#include "scheme.h"
static struct mkimg_alias vtoc8_aliases[] = {
{ NULL, 0 }
};
static off_t
vtoc8_get_leader(u_int parts __unused)
{
return (1);
}
static off_t
vtoc8_get_trailer(u_int parts __unused)
{
return (0);
}
static struct mkimg_scheme vtoc8_scheme = {
.name = "vtoc8",
.description = "SMI VTOC8 disk labels",
.nparts = VTOC8_NPARTS,
.padding = 0,
.aliases = vtoc8_aliases,
.get_leader = vtoc8_get_leader,
.get_trailer = vtoc8_get_trailer
};
SCHEME_DEFINE(vtoc8_scheme);