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pax_global_header 0000666 0000000 0000000 00000000064 12062104751 0014510 g ustar 00root root 0000000 0000000 52 comment=ea85065a0131e3522a7dba8402c256dca8404704
abootimg-0.6/ 0000755 0000000 0000000 00000000000 12062104751 0013154 5 ustar 00root root 0000000 0000000 abootimg-0.6/.gear/ 0000755 0000000 0000000 00000000000 12062104751 0014150 5 ustar 00root root 0000000 0000000 abootimg-0.6/.gear/rules 0000644 0000000 0000000 00000000075 12062104751 0015227 0 ustar 00root root 0000000 0000000 tar: . name=@name@-@version@-@release@ base=@name@-@version@
abootimg-0.6/.gitignore 0000644 0000000 0000000 00000000035 12062104751 0015142 0 ustar 00root root 0000000 0000000 abootimg
version.h
*.o
*.swp
abootimg-0.6/Changelog 0000644 0000000 0000000 00000001202 12062104751 0014761 0 ustar 00root root 0000000 0000000 2011/07/14 - v0.6
* fixes block device support, broken in v0.5
* fixes crash if ramdisk is bigger than kernel
* version.h no longer relies on git
* build fix on GNU Hurd
2011/05/18 - v0.5
* add support for freebsd, cygwin, and osx
* explains why sanity check has failed
* print version number in -help
* pack-initrd -f support
2011/02/17 - v0.4
* fix when page_size is null
2010/12/08 - v0.3
* fix when updating kernel without ramdisk
2010/11/28 - v0.2
* fix when updating ramdisk without the kernel
* fix --create on block device
* added pack-initrd and unpack-initrd helper tools
2010/11/25 - v0.1
Initial release
abootimg-0.6/LICENSE 0000644 0000000 0000000 00000043254 12062104751 0014171 0 ustar 00root root 0000000 0000000 GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
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library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.
abootimg-0.6/Makefile 0000644 0000000 0000000 00000000571 12062104751 0014617 0 ustar 00root root 0000000 0000000
CPPFLAGS=-DHAS_BLKID
CFLAGS?=-O3 -Wall
LDLIBS=-lblkid
all: abootimg
version.h:
if [ ! -f version.h ]; then \
if [ -d .git ]; then \
echo '#define VERSION_STR "$(shell git describe --tags --abbrev=0)"' > version.h; \
else \
echo '#define VERSION_STR ""' > version.h; \
fi \
fi
abootimg.o: bootimg.h version.h
clean:
rm -f abootimg *.o version.h
.PHONY: clean all
abootimg-0.6/README 0000644 0000000 0000000 00000017720 12062104751 0014043 0 ustar 00root root 0000000 0000000 abootimg - manipulate Android Boot Images.
------------------------------------------
(c) 2010 Gilles Grandou <gilles@grandou.net>
* Android Boot Images
---------------------
It a special partition format defined by the Android Open Source Porject.
See bootimg.h in the source tree for more information about the structure.
It's used by Android Bootloaders to boot the OS.
Boot images mainly convey:
- a kernel image
- a ramdisk image
- optionaly, a 2nd stage bootloader
- the cmdline passed to the kernel when booting.
The official tool used to create boot images is part of the Android Project,
available here:
http://android.git.kernel.org/?p=platform/system/core.git;a=tree;f=mkbootimg
abootimg can work directly on block devices, or, the safest way, on a file image.
File images can be read/written with dd:
$ dd if=/dev/mmcblk0p2 of=boot.img
$ dd if=boot.img of=/dev/mmcblk0p2
You obviously need to have right access to the block device (using su, sudo,
...).
Android Boot Image contains an 32 bytes Id. The specification does not actually
mandates any specific implementation of this Id (it can be a timestamp, a CRC
checksum, a SHA hash, ...). Bootloader appears to do nothing of this Id, it's
solely here for tracking purpose. Currently abootimg does nothing with it, it's
never touched/modified.
* Building abootimg
-------------------
On a linux system, it's simply as:
$ make
blkid library is needed to perform some sanity checks when writing boot image
directly on a block device (to avoid writing a valid existing filesystem).
* Looking at an Android Boot Image
----------------------------------
Basic Information can be extracted from a boot image, using:
$ abootimg -i <bootimg>
Here is an example:
$ ./abootimg -i boot.img
Android Boot Image Info:
* file name = boot.img
* image size = 8388608 bytes (8.00 MB)
page size = 2048 bytes
* Boot Name = ""
* kernel size = 3002744 bytes (2.86 MB)
ramdisk size = 1639626 bytes (1.56 MB)
* load addresses:
kernel: 0x10008000
ramdisk: 0x11000000
tags: 0x10000100
* cmdline = mem=448M@0M nvmem=64M@448M vmalloc=320M video=tegrafb console=tty0 usbcore.old_scheme_first=1 quiet splash elevator=noop tegraboot=sdmmc cmdpart=1:7168:10240,2:17408:16384,3:35840:614400,4:4004864:27096064
* id = 0x07571070 0x13950a6a 0x185c996f 0x9ab7b64d 0xcccd09bd 0x00000000 0x00000000 0x00000000
* Extracting elements from an Android Boot Image
------------------------------------------------
All parts of boot image can be extracted with:
$ abootimg -x <bootimg> [<bootimg.cfg> [<kernel> [<ramdisk> [<secondstage>]]]]
Parts name are optional. Default ones are used if none are given:
* bootimg.cfg for the configuration file
* zImage for the Kernel image
* initrd.img for the Ramdisk
* stage2.img for the Second Stage image
Here is an example:
$ abootimg -x boot.img
writing boot image config in bootimg.cfg
extracting kernel in zImage
extracting ramdisk in initrd.img
* Boot Configuration file
-------------------------
It's an editable ascii file which is basically a dump of the header content,
to be able to rebuild a compatible image later.
Each entry takes one line and is in the form of:
<entry> = <value>
You can put any number of spaces/tab before/after the =
<value> is evalued starting from the fisrt non space character following the =
until the end of line
Numerical values can be given in decimal (12345) or hexadecimal (0x1234abcd).
Known configuration entries are:
* bootsize
Indicate the size of the boot image to produce
* pagesize
All sizes have to be a multiple of the page size.
Standard page size is 2048 bytes. I don't know if other page size
are supported by Android bootloader
* kerneladdr, ramdiskaddr, secondaddr, tagsaddr
Address in RAM used to load the kernel, ramdisk, 2nd stage
bootloader, and tags table.
* name
name given to the boot image.
not really used by bootloader, but it's can be usefull to keep
track of what the image actually contains
* cmdline
contains the command line passed to the kernel when booting
* Updating an existing Android Boot Image
-----------------------------------------
An existing valid Boot Image can be updated with:
$ abootimg -u <bootimg> [-c "param=value"] [-f <bootimg.cfg>] [-k <kernel>] [-r <ramdisk>] [-s <secondstage>]
Any part of the image can be individully updated. As an example:
$ abootimg -u boot.img -k zImage.new
will update the kernel
$ abootimg -u boot.img -r initrd.new.img
will update the image
$ abootimg -u boot.img -k zImage.new -r initrd.new.img
will update both
Image configuration can be updated either by giving a configuration file
(-f option) or by giving individual config entries on the command line (-c).
Severial config entries (-c) can be given on comamd line.
As an example:
$ abootimg -u boot.img -f bootimg.new.cfg
will update the configuration without touching the kernel
nor the ramdisk
$ abootimg -u boot.img -c "cmdline = mem=448M@0M nvmem=64M@448M vmalloc=320M \
video=tegrafb console=tty0 usbcore.old_scheme_first=1 quiet splash elevator=noop \
tegraboot=sdmmc tegrapart=recovery:700:a00:800,boot:1100:1000:800,mbr:2100:200:800,\
system:2300:25800:800,cache:27b00:32000:800,misc:59b00:400:800,userdata:5a000:9a600:800"
update the boot conmand line
$ abootimg -u boot.img -c "bootsize=0x500000"
update the boot image size to 5MB.
It's usefull if you want to shrink an existing image to make it
fit in another smaller boot partition.
(On Toshiba AC100, it allows you to take a part06.img and
transform it to fit inside part05)
The original boot image has to be valid, otherwise abootimg will refuse to
update it.
* Creating a new Android Boot Image from scratch
------------------------------------------------
A new boot image can be create with:
$ abootimg --create <bootimg> [-c "param=value"] [-f <bootimg.cfg>] -k <kernel> -r <ramdisk> [-s <secondstage>]
Parameters are the same than above for update. The only difference is that
kernel and ramdisk are mandatory.
* Working directly of Block Devices
-----------------------------------
Instead of manipulating Boot Image regular file, you can work directly on boot
block device.
Note that, on AC100, the current kernel needs to be patched in order to have
direct access to boot partitions (partitions 5 and 6).
Some examples:
$ sudo abootimg -i /dev/mmcblk0p2
read the current boot partition
$ sudo abootimg -u /dev/mmcblk0p2 -k arch/arm/boot/zImage
update the boot partition with the kernel you have just built
$ sudo abootimg -u /dev/mmcblk0p2 -c "cmdline=..."
update the boot partition with a new boot cmdline
$ sudo abootimg --create /dev/mmcblk0p2 -f boot.cfg -k zImage -r initrd.img
overwrite the boot partition (which can be damaged) with a
brand new image
If abootimg has to write to a block device (-u and --create), some sanity
check are performed:
* you oviously need read/write access to the block device (so use su,
sudo, ...)
* the actual partition must not be identified as containing a valid
filesystem as recognised by blkid library. Specifically, it cannot
contains a ext2/3 filesystem (this avoids you to ovewrite your root
filesystem by mistake)
* the updated/created boot image has to be same size than the block
device you try to write on.
* in case of update, the current boot partition has to contain a valid
Android Boot Image.
Failing any of these tests will abort the operation on block device.
It's by definition more risky to manipulate block device, as a bad
manipulation can as bad manipulation can make your system unbootable if you
don't fix it before the next reboot.
On the other hand, manipulating the block device allows abootimg to prevent
most of the stupid mistakes which can be made when writing boot image with dd
(overwriting another filesystem, writing a boot image bigger than the
partition, writing the wrong file or an invalid partition, ...)
abootimg-0.6/abootimg-pack-initrd 0000755 0000000 0000000 00000000552 12062104751 0017110 0 ustar 00root root 0000000 0000000 #!/bin/sh
#
if [ "$1" = "-f" ]; then
forcewrite=yes
shift
fi
initrd=${1:-initrd.img}
ramdisk=${2:-ramdisk}
if [ ! -d $ramdisk ]; then
echo "$ramdisk does not exist."
exit 1
fi
if [ -f $initrd -a -z "$forcewrite" ]; then
echo "$initrd already exist."
exit 1
fi
( cd $ramdisk; find | sort | cpio --quiet -o -H newc ) | gzip > $initrd
abootimg-0.6/abootimg-unpack-initrd 0000755 0000000 0000000 00000000420 12062104751 0017445 0 ustar 00root root 0000000 0000000 #!/bin/sh
#
initrd=${1:-initrd.img}
ramdisk=${2:-ramdisk}
if [ ! -f $initrd ]; then
echo "$initrd does not exist."
exit 1
fi
if [ -d $ramdisk ]; then
echo "$ramdisk already exists."
exit 1
fi
mkdir -p $ramdisk
zcat $initrd | ( cd $ramdisk; cpio -i )
abootimg-0.6/abootimg.c 0000644 0000000 0000000 00000056556 12062104751 0015142 0 ustar 00root root 0000000 0000000 /* abootimg - Manipulate (read, modify, create) Android Boot Images
* Copyright (c) 2010-2011 Gilles Grandou <gilles@grandou.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#ifdef __linux__
#include <sys/ioctl.h>
#include <linux/fs.h> /* BLKGETSIZE64 */
#endif
#ifdef __CYGWIN__
#include <sys/ioctl.h>
#include <cygwin/fs.h> /* BLKGETSIZE64 */
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <sys/disk.h> /* DIOCGMEDIASIZE */
#include <sys/sysctl.h>
#endif
#if defined(__APPLE__)
# include <sys/disk.h> /* DKIOCGETBLOCKCOUNT */
#endif
#ifdef HAS_BLKID
#include <blkid/blkid.h>
#endif
#include "version.h"
#include "bootimg.h"
enum command {
none,
help,
info,
extract,
update,
create
};
typedef struct
{
unsigned size;
int is_blkdev;
char* fname;
char* config_fname;
char* kernel_fname;
char* ramdisk_fname;
char* second_fname;
FILE* stream;
boot_img_hdr header;
char* kernel;
char* ramdisk;
char* second;
} t_abootimg;
#define MAX_CONF_LEN 4096
char config_args[MAX_CONF_LEN] = "";
void abort_perror(char* str)
{
perror(str);
exit(errno);
}
void abort_printf(char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
fprintf(stderr, "\n");
exit(1);
}
int blkgetsize(int fd, unsigned long long *pbsize)
{
# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
return ioctl(fd, DIOCGMEDIASIZE, pbsize);
# elif defined(__APPLE__)
return ioctl(fd, DKIOCGETBLOCKCOUNT, pbsize);
# elif defined(__NetBSD__)
// does a suitable ioctl exist?
// return (ioctl(fd, DIOCGDINFO, &label) == -1);
return 1;
# elif defined(__linux__) || defined(__CYGWIN__)
return ioctl(fd, BLKGETSIZE64, pbsize);
# elif defined(__GNU__)
// does a suitable ioctl for HURD exist?
return 1;
# else
return 1;
# endif
}
void print_usage(void)
{
printf (
" abootimg - manipulate Android Boot Images.\n"
" (c) 2010-2011 Gilles Grandou <gilles@grandou.net>\n"
" " VERSION_STR "\n"
"\n"
" abootimg [-h]\n"
"\n"
" print usage\n"
"\n"
" abootimg -i <bootimg>\n"
"\n"
" print boot image information\n"
"\n"
" abootimg -x <bootimg> [<bootimg.cfg> [<kernel> [<ramdisk> [<secondstage>]]]]\n"
"\n"
" extract objects from boot image:\n"
" - config file (default name bootimg.cfg)\n"
" - kernel image (default name zImage)\n"
" - ramdisk image (default name initrd.img)\n"
" - second stage image (default name stage2.img)\n"
"\n"
" abootimg -u <bootimg> [-c \"param=value\"] [-f <bootimg.cfg>] [-k <kernel>] [-r <ramdisk>] [-s <secondstage>]\n"
"\n"
" update a current boot image with objects given in command line\n"
" - header informations given in arguments (several can be provided)\n"
" - header informations given in config file\n"
" - kernel image\n"
" - ramdisk image\n"
" - second stage image\n"
"\n"
" bootimg has to be valid Android Boot Image, or the update will abort.\n"
"\n"
" abootimg --create <bootimg> [-c \"param=value\"] [-f <bootimg.cfg>] -k <kernel> -r <ramdisk> [-s <secondstage>]\n"
"\n"
" create a new image from scratch.\n"
" if the boot image file is a block device, sanity check will be performed to avoid overwriting a existing\n"
" filesystem.\n"
"\n"
" argurments are the same than for -u.\n"
" kernel and ramdisk are mandatory.\n"
"\n"
);
}
enum command parse_args(int argc, char** argv, t_abootimg* img)
{
enum command cmd = none;
int i;
if (argc<2)
return none;
if (!strcmp(argv[1], "-h")) {
return help;
}
else if (!strcmp(argv[1], "-i")) {
cmd=info;
}
else if (!strcmp(argv[1], "-x")) {
cmd=extract;
}
else if (!strcmp(argv[1], "-u")) {
cmd=update;
}
else if (!strcmp(argv[1], "--create")) {
cmd=create;
}
else
return none;
switch(cmd) {
case none:
case help:
break;
case info:
if (argc != 3)
return none;
img->fname = argv[2];
break;
case extract:
if ((argc < 3) || (argc > 7))
return none;
img->fname = argv[2];
if (argc >= 4)
img->config_fname = argv[3];
if (argc >= 5)
img->kernel_fname = argv[4];
if (argc >= 6)
img->ramdisk_fname = argv[5];
if (argc >= 7)
img->second_fname = argv[6];
break;
case update:
case create:
if (argc < 3)
return none;
img->fname = argv[2];
img->config_fname = NULL;
img->kernel_fname = NULL;
img->ramdisk_fname = NULL;
img->second_fname = NULL;
for(i=3; i<argc; i++) {
if (!strcmp(argv[i], "-c")) {
if (++i >= argc)
return none;
unsigned len = strlen(argv[i]);
if (strlen(config_args)+len+1 >= MAX_CONF_LEN)
abort_printf("too many config parameters.\n");
strcat(config_args, argv[i]);
strcat(config_args, "\n");
}
else if (!strcmp(argv[i], "-f")) {
if (++i >= argc)
return none;
img->config_fname = argv[i];
}
else if (!strcmp(argv[i], "-k")) {
if (++i >= argc)
return none;
img->kernel_fname = argv[i];
}
else if (!strcmp(argv[i], "-r")) {
if (++i >= argc)
return none;
img->ramdisk_fname = argv[i];
}
else if (!strcmp(argv[i], "-s")) {
if (++i >= argc)
return none;
img->second_fname = argv[i];
}
else
return none;
}
break;
}
return cmd;
}
int check_boot_img_header(t_abootimg* img)
{
if (strncmp((char*)(img->header.magic), BOOT_MAGIC, BOOT_MAGIC_SIZE)) {
fprintf(stderr, "%s: no Android Magic Value\n", img->fname);
return 1;
}
if (!(img->header.kernel_size)) {
fprintf(stderr, "%s: kernel size is null\n", img->fname);
return 1;
}
if (!(img->header.ramdisk_size)) {
fprintf(stderr, "%s: ramdisk size is null\n", img->fname);
return 1;
}
unsigned page_size = img->header.page_size;
if (!page_size) {
fprintf(stderr, "%s: Image page size is null\n", img->fname);
return 1;
}
unsigned n = (img->header.kernel_size + page_size - 1) / page_size;
unsigned m = (img->header.ramdisk_size + page_size - 1) / page_size;
unsigned o = (img->header.second_size + page_size - 1) / page_size;
unsigned total_size = (1+n+m+o)*page_size;
if (total_size > img->size) {
fprintf(stderr, "%s: sizes mismatches in boot image\n", img->fname);
return 1;
}
return 0;
}
void check_if_block_device(t_abootimg* img)
{
struct stat st;
if (stat(img->fname, &st))
if (errno != ENOENT) {
printf("errno=%d\n", errno);
abort_perror(img->fname);
}
#ifdef HAS_BLKID
if (S_ISBLK(st.st_mode)) {
img->is_blkdev = 1;
char* type = blkid_get_tag_value(NULL, "TYPE", img->fname);
if (type)
abort_printf("%s: refuse to write on a valid partition type (%s)\n", img->fname, type);
int fd = open(img->fname, O_RDONLY);
if (fd == -1)
abort_perror(img->fname);
unsigned long long bsize = 0;
if (blkgetsize(fd, &bsize))
abort_perror(img->fname);
img->size = bsize;
close(fd);
}
#endif
}
void open_bootimg(t_abootimg* img, char* mode)
{
img->stream = fopen(img->fname, mode);
if (!img->stream)
abort_perror(img->fname);
}
void read_header(t_abootimg* img)
{
size_t rb = fread(&img->header, sizeof(boot_img_hdr), 1, img->stream);
if ((rb!=1) || ferror(img->stream))
abort_perror(img->fname);
else if (feof(img->stream))
abort_printf("%s: cannot read image header\n", img->fname);
struct stat s;
int fd = fileno(img->stream);
if (fstat(fd, &s))
abort_perror(img->fname);
if (S_ISBLK(s.st_mode)) {
unsigned long long bsize = 0;
if (blkgetsize(fd, &bsize))
abort_perror(img->fname);
img->size = bsize;
img->is_blkdev = 1;
}
else {
img->size = s.st_size;
img->is_blkdev = 0;
}
if (check_boot_img_header(img))
abort_printf("%s: not a valid Android Boot Image.\n", img->fname);
}
void update_header_entry(t_abootimg* img, char* cmd)
{
char *p;
char *token;
char *endtoken;
char *value;
p = strchr(cmd, '\n');
if (p)
*p = '\0';
p = cmd;
p += strspn(p, " \t");
token = p;
p += strcspn(p, " =\t");
endtoken = p;
p += strspn(p, " \t");
if (*p++ != '=')
goto err;
p += strspn(p, " \t");
value = p;
*endtoken = '\0';
unsigned valuenum = strtoul(value, NULL, 0);
if (!strcmp(token, "cmdline")) {
unsigned len = strlen(value);
if (len >= BOOT_ARGS_SIZE)
abort_printf("cmdline length (%d) is too long (max %d)", len, BOOT_ARGS_SIZE-1);
memset(img->header.cmdline, 0, BOOT_ARGS_SIZE);
strcpy((char*)(img->header.cmdline), value);
}
else if (!strncmp(token, "name", 4)) {
strncpy((char*)(img->header.name), value, BOOT_NAME_SIZE);
img->header.name[BOOT_NAME_SIZE-1] = '\0';
}
else if (!strncmp(token, "bootsize", 8)) {
if (img->is_blkdev && (img->size != valuenum))
abort_printf("%s: cannot change Boot Image size for a block device\n", img->fname);
img->size = valuenum;
}
else if (!strncmp(token, "pagesize", 8)) {
img->header.page_size = valuenum;
}
else if (!strncmp(token, "kerneladdr", 10)) {
img->header.kernel_addr = valuenum;
}
else if (!strncmp(token, "ramdiskaddr", 11)) {
img->header.ramdisk_addr = valuenum;
}
else if (!strncmp(token, "secondaddr", 10)) {
img->header.second_addr = valuenum;
}
else if (!strncmp(token, "tagsaddr", 8)) {
img->header.tags_addr = valuenum;
}
else
goto err;
return;
err:
abort_printf("%s: bad config entry\n", token);
}
void update_header(t_abootimg* img)
{
if (img->config_fname) {
FILE* config_file = fopen(img->config_fname, "r");
if (!config_file)
abort_perror(img->config_fname);
printf("reading config file %s\n", img->config_fname);
char* line = NULL;
size_t len = 0;
int read;
while ((read = getline(&line, &len, config_file)) != -1) {
update_header_entry(img, line);
free(line);
line = NULL;
}
if (ferror(config_file))
abort_perror(img->config_fname);
}
unsigned len = strlen(config_args);
if (len) {
FILE* config_file = fmemopen(config_args, len, "r");
if (!config_file)
abort_perror("-c args");
printf("reading config args\n");
char* line = NULL;
size_t len = 0;
int read;
while ((read = getline(&line, &len, config_file)) != -1) {
update_header_entry(img, line);
free(line);
line = NULL;
}
if (ferror(config_file))
abort_perror("-c args");
}
}
void update_images(t_abootimg *img)
{
unsigned page_size = img->header.page_size;
unsigned ksize = img->header.kernel_size;
unsigned rsize = img->header.ramdisk_size;
unsigned ssize = img->header.second_size;
if (!page_size)
abort_printf("%s: Image page size is null\n", img->fname);
unsigned n = (ksize + page_size - 1) / page_size;
unsigned m = (rsize + page_size - 1) / page_size;
unsigned o = (ssize + page_size - 1) / page_size;
unsigned roffset = (1+n)*page_size;
unsigned soffset = (1+n+m)*page_size;
if (img->kernel_fname) {
printf("reading kernel from %s\n", img->kernel_fname);
FILE* stream = fopen(img->kernel_fname, "r");
if (!stream)
abort_perror(img->kernel_fname);
struct stat st;
if (fstat(fileno(stream), &st))
abort_perror(img->kernel_fname);
ksize = st.st_size;
char* k = malloc(ksize);
if (!k)
abort_perror("");
size_t rb = fread(k, ksize, 1, stream);
if ((rb!=1) || ferror(stream))
abort_perror(img->kernel_fname);
else if (feof(stream))
abort_printf("%s: cannot read kernel\n", img->kernel_fname);
fclose(stream);
img->header.kernel_size = ksize;
img->kernel = k;
}
if (img->ramdisk_fname) {
printf("reading ramdisk from %s\n", img->ramdisk_fname);
FILE* stream = fopen(img->ramdisk_fname, "r");
if (!stream)
abort_perror(img->ramdisk_fname);
struct stat st;
if (fstat(fileno(stream), &st))
abort_perror(img->ramdisk_fname);
rsize = st.st_size;
char* r = malloc(rsize);
if (!r)
abort_perror("");
size_t rb = fread(r, rsize, 1, stream);
if ((rb!=1) || ferror(stream))
abort_perror(img->ramdisk_fname);
else if (feof(stream))
abort_printf("%s: cannot read ramdisk\n", img->ramdisk_fname);
fclose(stream);
img->header.ramdisk_size = rsize;
img->ramdisk = r;
}
else if (img->kernel) {
// if kernel is updated, copy the ramdisk from original image
char* r = malloc(rsize);
if (!r)
abort_perror("");
if (fseek(img->stream, roffset, SEEK_SET))
abort_perror(img->fname);
size_t rb = fread(r, rsize, 1, img->stream);
if ((rb!=1) || ferror(img->stream))
abort_perror(img->fname);
else if (feof(img->stream))
abort_printf("%s: cannot read ramdisk\n", img->fname);
img->ramdisk = r;
}
if (img->second_fname) {
printf("reading second stage from %s\n", img->second_fname);
FILE* stream = fopen(img->second_fname, "r");
if (!stream)
abort_perror(img->second_fname);
struct stat st;
if (fstat(fileno(stream), &st))
abort_perror(img->second_fname);
ssize = st.st_size;
char* s = malloc(ssize);
if (!s)
abort_perror("");
size_t rb = fread(s, ssize, 1, stream);
if ((rb!=1) || ferror(stream))
abort_perror(img->second_fname);
else if (feof(stream))
abort_printf("%s: cannot read second stage\n", img->second_fname);
fclose(stream);
img->header.second_size = ssize;
img->second = s;
}
else if (img->ramdisk && img->header.second_size) {
// if ramdisk is updated, copy the second stage from original image
char* s = malloc(ssize);
if (!s)
abort_perror("");
if (fseek(img->stream, soffset, SEEK_SET))
abort_perror(img->fname);
size_t rb = fread(s, ssize, 1, img->stream);
if ((rb!=1) || ferror(img->stream))
abort_perror(img->fname);
else if (feof(img->stream))
abort_printf("%s: cannot read second stage\n", img->fname);
img->second = s;
}
n = (img->header.kernel_size + page_size - 1) / page_size;
m = (img->header.ramdisk_size + page_size - 1) / page_size;
o = (img->header.second_size + page_size - 1) / page_size;
unsigned total_size = (1+n+m+o)*page_size;
if (!img->size)
img->size = total_size;
else if (total_size > img->size)
abort_printf("%s: updated is too big for the Boot Image (%u vs %u bytes)\n", img->fname, total_size, img->size);
}
void write_bootimg(t_abootimg* img)
{
unsigned psize;
char* padding;
printf ("Writing Boot Image %s\n", img->fname);
psize = img->header.page_size;
padding = calloc(psize, 1);
if (!padding)
abort_perror("");
unsigned n = (img->header.kernel_size + psize - 1) / psize;
unsigned m = (img->header.ramdisk_size + psize - 1) / psize;
//unsigned o = (img->header.second_size + psize - 1) / psize;
if (fseek(img->stream, 0, SEEK_SET))
abort_perror(img->fname);
fwrite(&img->header, sizeof(img->header), 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
fwrite(padding, psize - sizeof(img->header), 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
if (img->kernel) {
fwrite(img->kernel, img->header.kernel_size, 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
fwrite(padding, psize - (img->header.kernel_size % psize), 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
}
if (img->ramdisk) {
if (fseek(img->stream, (1+n)*psize, SEEK_SET))
abort_perror(img->fname);
fwrite(img->ramdisk, img->header.ramdisk_size, 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
fwrite(padding, psize - (img->header.ramdisk_size % psize), 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
}
if (img->header.second_size) {
if (fseek(img->stream, (1+n+m)*psize, SEEK_SET))
abort_perror(img->fname);
fwrite(img->second, img->header.second_size, 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
fwrite(padding, psize - (img->header.second_size % psize), 1, img->stream);
if (ferror(img->stream))
abort_perror(img->fname);
}
ftruncate (fileno(img->stream), img->size);
free(padding);
}
void print_bootimg_info(t_abootimg* img)
{
printf ("\nAndroid Boot Image Info:\n\n");
printf ("* file name = %s %s\n\n", img->fname, img->is_blkdev ? "[block device]":"");
printf ("* image size = %u bytes (%.2f MB)\n", img->size, (double)img->size/0x100000);
printf (" page size = %u bytes\n\n", img->header.page_size);
printf ("* Boot Name = \"%s\"\n\n", img->header.name);
unsigned kernel_size = img->header.kernel_size;
unsigned ramdisk_size = img->header.ramdisk_size;
unsigned second_size = img->header.second_size;
printf ("* kernel size = %u bytes (%.2f MB)\n", kernel_size, (double)kernel_size/0x100000);
printf (" ramdisk size = %u bytes (%.2f MB)\n", ramdisk_size, (double)ramdisk_size/0x100000);
if (second_size)
printf (" second stage size = %u bytes (%.2f MB)\n", ramdisk_size, (double)ramdisk_size/0x100000);
printf ("\n* load addresses:\n");
printf (" kernel: 0x%08x\n", img->header.kernel_addr);
printf (" ramdisk: 0x%08x\n", img->header.ramdisk_addr);
if (second_size)
printf (" second stage: 0x%08x\n", img->header.second_addr);
printf (" tags: 0x%08x\n\n", img->header.tags_addr);
if (img->header.cmdline[0])
printf ("* cmdline = %s\n\n", img->header.cmdline);
else
printf ("* empty cmdline\n");
printf ("* id = ");
int i;
for (i=0; i<8; i++)
printf ("0x%08x ", img->header.id[i]);
printf ("\n\n");
}
void write_bootimg_config(t_abootimg* img)
{
printf ("writing boot image config in %s\n", img->config_fname);
FILE* config_file = fopen(img->config_fname, "w");
if (!config_file)
abort_perror(img->config_fname);
fprintf(config_file, "bootsize = 0x%x\n", img->size);
fprintf(config_file, "pagesize = 0x%x\n", img->header.page_size);
fprintf(config_file, "kerneladdr = 0x%x\n", img->header.kernel_addr);
fprintf(config_file, "ramdiskaddr = 0x%x\n", img->header.ramdisk_addr);
fprintf(config_file, "secondaddr = 0x%x\n", img->header.second_addr);
fprintf(config_file, "tagsaddr = 0x%x\n", img->header.tags_addr);
fprintf(config_file, "name = %s\n", img->header.name);
fprintf(config_file, "cmdline = %s\n", img->header.cmdline);
fclose(config_file);
}
void extract_kernel(t_abootimg* img)
{
unsigned psize = img->header.page_size;
unsigned ksize = img->header.kernel_size;
printf ("extracting kernel in %s\n", img->kernel_fname);
void* k = malloc(ksize);
if (!k)
abort_perror(NULL);
if (fseek(img->stream, psize, SEEK_SET))
abort_perror(img->fname);
size_t rb = fread(k, ksize, 1, img->stream);
if ((rb!=1) || ferror(img->stream))
abort_perror(img->fname);
FILE* kernel_file = fopen(img->kernel_fname, "w");
if (!kernel_file)
abort_perror(img->kernel_fname);
fwrite(k, ksize, 1, kernel_file);
if (ferror(kernel_file))
abort_perror(img->kernel_fname);
fclose(kernel_file);
free(k);
}
void extract_ramdisk(t_abootimg* img)
{
unsigned psize = img->header.page_size;
unsigned ksize = img->header.kernel_size;
unsigned rsize = img->header.ramdisk_size;
unsigned n = (ksize + psize - 1) / psize;
unsigned roffset = (1+n)*psize;
printf ("extracting ramdisk in %s\n", img->ramdisk_fname);
void* r = malloc(rsize);
if (!r)
abort_perror(NULL);
if (fseek(img->stream, roffset, SEEK_SET))
abort_perror(img->fname);
size_t rb = fread(r, rsize, 1, img->stream);
if ((rb!=1) || ferror(img->stream))
abort_perror(img->fname);
FILE* ramdisk_file = fopen(img->ramdisk_fname, "w");
if (!ramdisk_file)
abort_perror(img->ramdisk_fname);
fwrite(r, rsize, 1, ramdisk_file);
if (ferror(ramdisk_file))
abort_perror(img->ramdisk_fname);
fclose(ramdisk_file);
free(r);
}
void extract_second(t_abootimg* img)
{
unsigned psize = img->header.page_size;
unsigned ksize = img->header.kernel_size;
unsigned rsize = img->header.ramdisk_size;
unsigned ssize = img->header.second_size;
if (!ssize) // Second Stage not present
return;
unsigned n = (rsize + ksize + psize - 1) / psize;
unsigned soffset = (1+n)*psize;
printf ("extracting second stage image in %s\n", img->second_fname);
void* s = malloc(ksize);
if (!s)
abort_perror(NULL);
if (fseek(img->stream, soffset, SEEK_SET))
abort_perror(img->fname);
size_t rb = fread(s, ssize, 1, img->stream);
if ((rb!=1) || ferror(img->stream))
abort_perror(img->fname);
FILE* second_file = fopen(img->second_fname, "w");
if (!second_file)
abort_perror(img->second_fname);
fwrite(s, ssize, 1, second_file);
if (ferror(second_file))
abort_perror(img->second_fname);
fclose(second_file);
free(s);
}
t_abootimg* new_bootimg()
{
t_abootimg* img;
img = calloc(sizeof(t_abootimg), 1);
if (!img)
abort_perror(NULL);
img->config_fname = "bootimg.cfg";
img->kernel_fname = "zImage";
img->ramdisk_fname = "initrd.img";
img->second_fname = "stage2.img";
memcpy(img->header.magic, BOOT_MAGIC, BOOT_MAGIC_SIZE);
img->header.page_size = 2048; // a sensible default page size
return img;
}
int main(int argc, char** argv)
{
t_abootimg* bootimg = new_bootimg();
switch(parse_args(argc, argv, bootimg))
{
case none:
printf("error - bad arguments\n\n");
print_usage();
break;
case help:
print_usage();
break;
case info:
open_bootimg(bootimg, "r");
read_header(bootimg);
print_bootimg_info(bootimg);
break;
case extract:
open_bootimg(bootimg, "r");
read_header(bootimg);
write_bootimg_config(bootimg);
extract_kernel(bootimg);
extract_ramdisk(bootimg);
extract_second(bootimg);
break;
case update:
open_bootimg(bootimg, "r+");
read_header(bootimg);
update_header(bootimg);
update_images(bootimg);
write_bootimg(bootimg);
break;
case create:
if (!bootimg->kernel_fname || !bootimg->ramdisk_fname) {
print_usage();
break;
}
check_if_block_device(bootimg);
open_bootimg(bootimg, "w");
update_header(bootimg);
update_images(bootimg);
if (check_boot_img_header(bootimg))
abort_printf("%s: Sanity cheks failed", bootimg->fname);
write_bootimg(bootimg);
break;
}
return 0;
}
abootimg-0.6/abootimg.spec 0000644 0000000 0000000 00000001226 12062104751 0015632 0 ustar 00root root 0000000 0000000 Name: abootimg
Version: 0.6
Release: alt1
Summary: A tool to read/write/update android boot images
License: GPL
Group: System/Kernel and hardware
Url: http://gitorious.org/ac100/abootimg
Source: %name-%version-%release.tar
BuildRequires: libblkid-devel
%description
%summary
%prep
%setup
%build
make CFLAGS='%optflags'
%install
install -pm0755 abootimg -D %buildroot%_bindir/abootimg
install -pm0755 abootimg-*-initrd %buildroot%_bindir/
install -pm0644 -D debian/abootimg.1 %buildroot%_man1dir/abootimg.1
%files
%doc README
%_bindir/*
%_man1dir/abootimg.1*
%changelog
* Wed Dec 12 2012 Sergey Bolshakov <sbolshakov@altlinux.ru> 0.6-alt1
- 0.6 released
abootimg-0.6/bootimg.h 0000644 0000000 0000000 00000005501 12062104751 0014766 0 ustar 00root root 0000000 0000000 /* tools/mkbootimg/bootimg.h
**
** Copyright 2007, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#ifndef _BOOT_IMAGE_H_
#define _BOOT_IMAGE_H_
typedef struct boot_img_hdr boot_img_hdr;
#define BOOT_MAGIC "ANDROID!"
#define BOOT_MAGIC_SIZE 8
#define BOOT_NAME_SIZE 16
#define BOOT_ARGS_SIZE 512
struct boot_img_hdr
{
unsigned char magic[BOOT_MAGIC_SIZE];
unsigned kernel_size; /* size in bytes */
unsigned kernel_addr; /* physical load addr */
unsigned ramdisk_size; /* size in bytes */
unsigned ramdisk_addr; /* physical load addr */
unsigned second_size; /* size in bytes */
unsigned second_addr; /* physical load addr */
unsigned tags_addr; /* physical addr for kernel tags */
unsigned page_size; /* flash page size we assume */
unsigned unused[2]; /* future expansion: should be 0 */
unsigned char name[BOOT_NAME_SIZE]; /* asciiz product name */
unsigned char cmdline[BOOT_ARGS_SIZE];
unsigned id[8]; /* timestamp / checksum / sha1 / etc */
};
/*
** +-----------------+
** | boot header | 1 page
** +-----------------+
** | kernel | n pages
** +-----------------+
** | ramdisk | m pages
** +-----------------+
** | second stage | o pages
** +-----------------+
**
** n = (kernel_size + page_size - 1) / page_size
** m = (ramdisk_size + page_size - 1) / page_size
** o = (second_size + page_size - 1) / page_size
**
** 0. all entities are page_size aligned in flash
** 1. kernel and ramdisk are required (size != 0)
** 2. second is optional (second_size == 0 -> no second)
** 3. load each element (kernel, ramdisk, second) at
** the specified physical address (kernel_addr, etc)
** 4. prepare tags at tag_addr. kernel_args[] is
** appended to the kernel commandline in the tags.
** 5. r0 = 0, r1 = MACHINE_TYPE, r2 = tags_addr
** 6. if second_size != 0: jump to second_addr
** else: jump to kernel_addr
*/
#if 0
typedef struct ptentry ptentry;
struct ptentry {
char name[16]; /* asciiz partition name */
unsigned start; /* starting block number */
unsigned length; /* length in blocks */
unsigned flags; /* set to zero */
};
/* MSM Partition Table ATAG
**
** length: 2 + 7 * n
** atag: 0x4d534d70
** <ptentry> x n
*/
#endif
#endif
abootimg-0.6/debian/ 0000755 0000000 0000000 00000000000 12062104751 0014376 5 ustar 00root root 0000000 0000000 abootimg-0.6/debian/abootimg.1 0000644 0000000 0000000 00000002600 12062104751 0016257 0 ustar 00root root 0000000 0000000 .TH ABOOTIMG 1
.SH NAME
abootimg \- manipulate Android Boot Images.
.SH DESCRIPTION
Tool to read/write/update android boot images
.SH SYNOPSIS
.B abootimg
\-i <bootimg>
.br
.B abootimg
\-x <bootimg> [<bootimg.cfg> [<kernel> [<ramdisk> [<secondstage>]]]]
.br
.B abootimg
\-u <bootimg> [\-c "param=value"] [\-f <bootimg.cfg>] [\-k <kernel>] [\-r <ramdisk>] [\-s <secondstage>]
.br
.B abootimg
\-\-create <bootimg> [\-c "param=value"] [\-f <bootimg.cfg>] \-k <kernel> \-r <ramdisk> [\-s <secondstage>]
.SH OPTIONS
.TP
.B \-i
print boot image information
.TP
.B \-x
Extract a boot image
.TP
.B \-u
Update a boot image
.TP
.B \-\-create
Create a boot image
.SS "Options for extracting boot images"
.TP
.B bootimg
Existing boot image to use
.TP
.B bootimg.cfg
Name for the bootimg.cfg file, defaults to bootimg.cfg
.TP
.B kernel
Name for the kernel image, defaults to zImage
.TP
.B ramdisk
Name for the ramdisk image, defaults to initrd.img
.TP
.B secondstage
Name for the second-stage image, defaults to stage2.img
.SS "Options for updating and creating boot images"
.TP
.B bootimg
Existing boot image to use
.TP
.B \-c "param=value"
Existing boot image to use
.TP
.B \-f <bootimg.cfg>
Update bootimg.cfg with the named file
.TP
.B \-k <kernel>
Update kernel with the named file
.TP
.B \-r <ramdisk>
Update ramdisk with the named file
.TP
.B \-s <secondstage>
Update secondstage image with the named file
abootimg-0.6/debian/changelog 0000644 0000000 0000000 00000001365 12062104751 0016255 0 ustar 00root root 0000000 0000000 abootimg (0.6-1) unstable; urgency=low
* New upstream release
-- Heiko Stuebner <mmind@debian.org> Thu, 14 Jul 2011 20:54:33 +0200
abootimg (0.5+git20110704-1) unstable; urgency=low
* New upstream snapshot
* Fix build on GNU-Hurd
* Bump standards to 3.9.2
-- Heiko Stuebner <mmind@debian.org> Mon, 04 Jul 2011 18:34:17 +0200
abootimg (0.5+git20110609-1) unstable; urgency=low
* New upstream release (Closes: #631719)
* Relax packaging license (Closes: #631720)
* Install helper scripts for initramfs handling
-- Heiko Stuebner <mmind@debian.org> Sat, 02 Jul 2011 12:46:35 +0200
abootimg (0.3-1) unstable; urgency=low
* Initial release (Closes: #612096)
-- Heiko Stuebner <mmind@debian.org> Sat, 12 Feb 2011 12:04:10 +0100
abootimg-0.6/debian/compat 0000644 0000000 0000000 00000000002 12062104751 0015574 0 ustar 00root root 0000000 0000000 7
abootimg-0.6/debian/control 0000644 0000000 0000000 00000001471 12062104751 0016004 0 ustar 00root root 0000000 0000000 Source: abootimg
Section: admin
Priority: extra
Maintainer: Heiko Stuebner <mmind@debian.org>
Build-Depends: debhelper (>= 7), cdbs (>= 0.4.49), libblkid-dev
Standards-Version: 3.9.2
Homepage: http://gitorious.org/ac100/abootimg
Package: abootimg
Architecture: any
Depends: ${shlibs:Depends}, ${misc:Depends}
Description: Tool to read/write/update android boot images
Android devices use a special partition format to boot any
operating system on the devices. These boot-images contain
a kernel image, a ramdisk, optionally a 2nd stage boot loader
and the commandline passed to the kernel when booting.
The original mkbootimg from Android can only create these images
where abootimg can also extract and modify them.
Handling android boot images is necessary when bringing other
operating systems to android devices. abootimg-0.6/debian/copyright 0000644 0000000 0000000 00000003330 12062104751 0016330 0 ustar 00root root 0000000 0000000 This package was debianized by Heiko Stuebner <mmind@debian.org> on
Sat, 12 Feb 2011 10:44:12 +0100.
It was downloaded from http://gitorious.org/ac100/abootimg
Upstream Author:
Gilles Grandou <gilles@grandou.net>
Copyright:
Copyright (c) 2010 Gilles Grandou <gilles@grandou.net>
License:
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
On Debian systems, the complete text of the GNU Library
General Public License can be found in `/usr/share/common-licenses/GPL-2'.
except bootimg.h
Copyright 2007, The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
On Debian systems, the complete text of the Apache License Version 2.0
can be found in `/usr/share/common-licenses/Apache-2.0'.
The Debian packaging is copyright 2011, Heiko Stuebner <mmind@debian.org> and
is licensed under the GPL version 2, or (at your option) any later version,
see `/usr/share/common-licenses/GPL-2'.
abootimg-0.6/debian/dirs 0000644 0000000 0000000 00000000037 12062104751 0015262 0 ustar 00root root 0000000 0000000 usr/bin
usr/share/doc/abootimg
abootimg-0.6/debian/docs 0000644 0000000 0000000 00000000007 12062104751 0015246 0 ustar 00root root 0000000 0000000 README
abootimg-0.6/debian/gbp.conf 0000644 0000000 0000000 00000000705 12062104751 0016017 0 ustar 00root root 0000000 0000000 # Configuration file for git-buildpackage and friends
[DEFAULT]
# the default build command:
#builder = debuild -i -I
# the default clean command:
#cleaner = debuild clean
# the default branch for upstream sources:
#upstream-branch = upstream
# the default branch for the debian patch:
#debian-branch = master
# the default tag formats used:
#upstream-tag = upstream/%(version)s
#debian-tag = debian/%(version)s
# use pristine-tar:
pristine-tar = True
abootimg-0.6/debian/rules 0000755 0000000 0000000 00000001244 12062104751 0015457 0 ustar 00root root 0000000 0000000 #!/usr/bin/make -f
include /usr/share/cdbs/1/rules/debhelper.mk
include /usr/share/cdbs/1/class/makefile.mk
DEBVERS := $(shell dpkg-parsechangelog | sed -n -e 's/^Version: //p')
VERSION := $(shell echo '$(DEBVERS)' | sed -e 's/^[[:digit:]]*://' -e 's/[~-].*//')
configure/abootimg::
echo '#define VERSION_STR "$(VERSION)"' > version.h
binary-install/abootimg::
dh_installman $(CURDIR)/debian/abootimg.1
install $(CURDIR)/abootimg $(CURDIR)/debian/abootimg/usr/bin
install -T $(CURDIR)/abootimg-pack-initrd $(CURDIR)/debian/abootimg/usr/bin
install -T $(CURDIR)/abootimg-unpack-initrd $(CURDIR)/debian/abootimg/usr/bin
clean::
rm -rf files/agtl.egg-info
rm -rf tmp