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bootimg.c
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/*
** Copyright 2016, 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <dirent.h>
#include <sys/stat.h>
#include "bootimg.h"
#include "mincrypt/sha.h"
#define APP_NAME "bootimg"
#ifdef DEBUG
#include <android/log.h>
#define LOGV(...) { __android_log_print(ANDROID_LOG_INFO, APP_NAME, __VA_ARGS__); printf(__VA_ARGS__); printf("\n"); }
#define LOGE(...) { __android_log_print(ANDROID_LOG_ERROR, APP_NAME, __VA_ARGS__); fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n"); }
#else
#define LOGV(...) { printf(__VA_ARGS__); printf("\n"); }
#define LOGE(...) { fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n"); }
#endif
/* create new files as 0640 */
#define NEW_FILE_PERMISSIONS (S_IRUSR | S_IWUSR | S_IRGRP)
/* create new directories as 0750 */
#define NEW_DIR_PERMISSIONS (S_IRWXU | S_IRGRP | S_IXGRP)
/* string value used to ignore/delete items when creating/updating a boot image */
#define DELETE_VALUE "!"
/* mingw32-gcc compatibility */
#if defined(_WIN32) || defined(__WIN32__)
#define mkdir(A, B) mkdir(A)
#else
#define O_BINARY 0
#endif
/* modes of operation */
enum {
MODE_NONE,
MODE_UNPACK,
MODE_CREATE,
MODE_UPDATE,
MODE_INFO
};
/* args set by user in command */
enum
{
ARG_BOARD = 1U << 0,
ARG_CMDLINE = 1U << 1,
ARG_MTK_HEADER = 1U << 2,
ARG_PAGESIZE = 1U << 3,
ARG_BASE = 1U << 4,
ARG_KERNEL_OFFSET = 1U << 5,
ARG_RAMDISK_OFFSET = 1U << 6,
ARG_SECOND_OFFSET = 1U << 7,
ARG_TAGS_OFFSET = 1U << 8,
#ifndef NO_MTK_SUPPORT
ARG_KERNEL_MTK = 1U << 9,
ARG_RAMDISK_MTK = 1U << 10,
ARG_SECOND_MTK = 1U << 11,
ARG_DT_MTK = 1U << 12,
#endif
ARG_KERNEL = 1U << 13,
ARG_RAMDISK = 1U << 14,
ARG_SECOND = 1U << 15,
ARG_DT = 1U << 16,
ARG_CHROMEOS = 1U << 17, /* unused */
ARG_CMDLINE_ARG = 1U << 18,
ARG_HASH = 1U << 19,
ARG_ACTUALHASH = 1U << 20, /* unused */
ARG_OS_VERSION = 1U << 21,
ARG_PATCH_LEVEL = 1U << 22,
};
/* match arg flags (for verbose output) */
enum
{
INFO_MAGIC = 1U << 0,
INFO_CMDLINE = 1U << 1,
INFO_MTK_HEADER = 1U << 2,
INFO_PAGESIZE = 1U << 3,
INFO_BASE = 1U << 4,
INFO_KERNEL_OFFSET = 1U << 5,
INFO_RAMDISK_OFFSET = 1U << 6,
INFO_SECOND_OFFSET = 1U << 7,
INFO_TAGS_OFFSET = 1U << 8,
#ifndef NO_MTK_SUPPORT
INFO_KERNEL_MTK = 1U << 9,
INFO_RAMDISK_MTK = 1U << 10,
INFO_SECOND_MTK = 1U << 11,
INFO_DT_MTK = 1U << 12,
#endif
INFO_KERNEL_SIZE = 1U << 13,
INFO_RAMDISK_SIZE = 1U << 14,
INFO_SECOND_SIZE = 1U << 15,
INFO_DT_SIZE = 1U << 16,
INFO_CHROMEOS = 1U << 17,
INFO_CMDLINE_ARG = 1U << 18, /* unused */
INFO_HASH = 1U << 19,
INFO_ACTUALHASH = 1U << 20,
INFO_OS_VERSION = 1U << 21,
INFO_PATCH_LEVEL = 1U << 22,
};
static int write_string_to_file(const char *file, const char *string)
{
int fd, len = 0;
if (string)
len = strlen(string);
fd = open(file, O_CREAT | O_TRUNC | O_WRONLY, NEW_FILE_PERMISSIONS);
if (fd < 0)
return errno;
if (len && write(fd, string, len) != len)
goto oops;
if (write(fd, "\n", 1) != 1)
goto oops;
close(fd);
return 0;
oops:
close(fd);
unlink(file);
return EIO;
}
static int read_string_from_file(const char* file, char *buf, off_t len)
{
int fd;
char *c;
off_t rlen;
if ((fd = open(file, O_RDONLY)) < 0)
return errno;
rlen = read(fd, buf, len - 1);
if (rlen < 0) {
close(fd);
return EIO;
}
*(buf + rlen + 1) = 0;
if ((c = strchr(buf, '\r')) || (c = strchr(buf, '\n')))
*c = 0; /* stop at newline */
close(fd);
return 0;
}
static char *read_hash(const byte *hash)
{
char *str = malloc(SHA_DIGEST_SIZE * 2 + 1);
char *c = str;
const byte *h = hash;
for (; c < str + SHA_DIGEST_SIZE * 2; h++) {
c += sprintf(c, "%02x", *h);
}
*c = 0;
return str;
}
void print_boot_info(const boot_img *image, const unsigned info)
{
if (info & INFO_MAGIC)
LOGV("BOARD_MAGIC \"%s\"", image->hdr.board);
if (info & INFO_CMDLINE)
LOGV("BOARD_CMDLINE \"%s\"", image->hdr.cmdline);
if (info & INFO_OS_VERSION && image->hdr.os_version) {
char *os_version = bootimg_get_os_version(image);
if (os_version) {
LOGV("BOARD_OS_VERSION %s", os_version);
free(os_version);
}
}
if (info & INFO_PATCH_LEVEL && image->hdr.os_version) {
char *patch_level = bootimg_get_patch_level(image);
if (patch_level) {
LOGV("BOARD_OS_PATCH_LEVEL %s", patch_level);
free(patch_level);
}
}
if (info & INFO_PAGESIZE)
LOGV("BOARD_PAGESIZE %u", image->hdr.pagesize);
if (info & INFO_BASE)
LOGV("BOARD_BASE 0x%08X", image->base);
if (info & INFO_KERNEL_OFFSET)
LOGV("BOARD_KERNEL_OFFSET 0x%08X", image->kernel.offset);
if (info & INFO_RAMDISK_OFFSET)
LOGV("BOARD_RAMDISK_OFFSET 0x%08X", image->ramdisk.offset);
if (info & INFO_SECOND_OFFSET)
LOGV("BOARD_SECOND_OFFSET 0x%08X", image->second.offset);
if (info & INFO_TAGS_OFFSET)
LOGV("BOARD_TAGS_OFFSET 0x%08X", image->tags_offset);
if (info & INFO_KERNEL_SIZE)
LOGV("BOARD_KERNEL_SIZE %u", (unsigned)image->kernel.size);
if (info & INFO_RAMDISK_SIZE)
LOGV("BOARD_RAMDISK_SIZE %u", (unsigned)image->ramdisk.size);
if (info & INFO_SECOND_SIZE)
LOGV("BOARD_SECOND_SIZE %u", (unsigned)image->second.size);
if (info & INFO_DT_SIZE)
LOGV("BOARD_DT_SIZE %u", (unsigned)image->dt.size);
#ifndef NO_MTK_SUPPORT
if (info & INFO_KERNEL_MTK && image->kernel.mtk_header)
LOGV("BOARD_KERNEL_MTK \"%s\"", image->kernel.mtk_header->string);
if (info & INFO_RAMDISK_MTK && image->ramdisk.mtk_header)
LOGV("BOARD_RAMDISK_MTK \"%s\"", image->ramdisk.mtk_header->string);
if (info & INFO_SECOND_MTK && image->second.mtk_header)
LOGV("BOARD_SECOND_MTK \"%s\"", image->second.mtk_header->string);
if (info & INFO_DT_MTK && image->dt.mtk_header)
LOGV("BOARD_DT_MTK \"%s\"", image->dt.mtk_header->string);
#endif
if (info & INFO_CHROMEOS && image->chromeos)
LOGV("BOARD_CHROMEOS %u", image->chromeos);
if (info & INFO_HASH) {
char *hash = read_hash((byte*)image->hdr.hash);
if (hash) {
LOGV("BOARD_HASH 0x%s", hash);
free(hash);
}
}
if (info & INFO_ACTUALHASH) {
byte *bytes = bootimg_generate_hash(image);
if (bytes) {
char *hash = read_hash(bytes);
if (hash) {
LOGV("ACTUALHASH 0x%s", hash);
free(hash);
}
free(bytes);
}
}
}
static void print_usage(const char *app)
{
LOGE("Usage: %s [xcuvvf] [args...]\n", app);
LOGE(
" Modes:\n"
" -x, --unpack - unpack an Android boot image\n"
" -c, --create - create an Android boot image\n"
" -u, --update - update an Android boot image\n"
" -v, -vv, --verbose - print boot image details\n"
" -H, --help - print usage information\n"
);
LOGE(
" Options: (set value only for create/update mode)\n"
" [ -k, --kernel \"kernel\" ]\n"
" [ -r, --ramdisk \"ramdisk\" ]\n"
" [ -s, --second \"second\" ]\n"
" [ -d, --dt \"dt.img\" ]\n"
" [ -m, --board \"board magic\" ]\n"
" [ -os, --os_version \"A.B.C\" ]\n"
" [ -pl, --patch_level \"YYYY-MM-DD\" ]\n"
" [ -l, --cmdline \"boot cmdline\" ]\n"
" [ -a, --arg \"cmdline\" \"value\" ]\n"
" [ -p, --pagesize <size> ]\n"
" [ -b, --base <hex> ]\n"
" [ -ko, --kernel_offset <hex> ]\n"
" [ -ro, --ramdisk_offset <hex> ]\n"
" [ -so, --second_offset <hex> ]\n"
" [ -to, --tags_offset <hex> ]\n"
" [ -h, --hash ]\n"
);
#ifndef NO_MTK_SUPPORT
LOGE(
" Options for MediaTek devices:\n"
" [ -km, --kernel_mtk \"KERNEL\" ]\n"
" [ -rm, --ramdisk_mtk \"ROOTFS\" ]\n"
" [ -sm, --second_mtk \"SECOND\" ]\n"
" [ -dm, --dt_mtk \"DTIMAGE\" ]\n"
);
#endif
LOGE(
" Unpack:\n"
" -i, --input \"boot.img\"\n"
" -o, --output \"directory\"\n"
" Create:\n"
" -o, --output \"boot.img\"\n"
" -i, --input \"directory\"\n"
" Update:\n"
" -i, --input \"boot.img\"\n"
" [ -o, --output \"boot.img\" ]\n"
);
LOGE(
"To remove an item from the image, specify "
DELETE_VALUE " as its value.\n"
);
}
/* returned by any invalid command */
#define usage(...) { \
print_usage(argv[0]); \
LOGE(__VA_ARGS__); \
ret = EINVAL; \
goto free; \
}
/* shortcuts to reduce code */
#define unset(item) { if (item) { free(item); item = 0; } }
#define specify(item) usage("You need to specify %s!", item)
#define failto(item) { LOGE("Failed to %s: %s", item, strerror(ret)); goto free; }
#define requireval { if (i > argc - 2) usage("%s requires a value in this mode!", argv[i]); }
#define breakifdelete { if (!strcmp(argv[i + 1], DELETE_VALUE)) { i++; break; } }
#define foundfile(item) { if (verbose > 1) LOGV("Found %s: %s", item, file); }
#define setfile(name) sprintf(file, "%s/%s", output, name);
int main(const int argc, const char** argv)
{
boot_img *image = 0;
struct stat st = {.st_dev = 0};
struct dirent *dp;
DIR *dfd;
const char *c, *input = 0, *output = 0;
char file[PATH_MAX], buf[1024], hex[16],
*board = 0, *os_version = 0, *patch_level = 0, *cmdline = 0,
*kernel = 0, *ramdisk = 0, *second = 0, *dt = 0;
#ifndef NO_MTK_SUPPORT
char *kernel_mtk = 0, *ramdisk_mtk = 0, *second_mtk = 0, *dt_mtk = 0;
#endif
uint32_t base = 0, tags_offset = 0,
kernel_offset = 0, ramdisk_offset = 0, second_offset = 0;
int i, argstart, mode = MODE_NONE,
pagesize = 0, ret = 0, verbose = 0;
unsigned args = 0, info = 0;
if (argc < 2)
usage("Not enough arguments!");
/* tar style argument parsing (only valid in first arg) */
for (argstart = 2, c = argv[1]; *c; c++) {
switch (*c) {
case '-':
case 'f':
continue;
case 'x':
mode = MODE_UNPACK;
continue;
case 'c':
mode = MODE_CREATE;
continue;
case 'u':
mode = MODE_UPDATE;
continue;
case 'v':
verbose++;
continue;
}
mode = MODE_NONE;
verbose = 0;
argstart = 1;
break;
}
/* handle mode changes so next section can parse args in the right mode */
for (i = argstart; i < argc; i++) {
if (!strcmp(argv[i], "-x") || !strcmp(argv[i], "--unpack"))
mode = MODE_UNPACK;
else
if (!strcmp(argv[i], "-c") || !strcmp(argv[i], "--create"))
mode = MODE_CREATE;
else
if (!strcmp(argv[i], "-u") || !strcmp(argv[i], "--update"))
mode = MODE_UPDATE;
else
if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose"))
verbose++;
else
if (!strcmp(argv[i], "-vv"))
verbose += 2;
else
if (!strcmp(argv[i], "-H") || !strcmp(argv[i], "--help")) {
print_usage(argv[0]);
return 0;
}
}
if (mode == MODE_NONE && verbose)
mode = MODE_INFO;
if (mode == MODE_NONE)
specify("a mode of operation");
for (i = argstart; i < argc; i++) {
if (!strcmp(argv[i], "-x") || !strcmp(argv[i], "--unpack")
|| !strcmp(argv[i], "-c") || !strcmp(argv[i], "--create")
|| !strcmp(argv[i], "-u") || !strcmp(argv[i], "--update")
|| !strcmp(argv[i], "-v") || !strcmp(argv[i], "--verbose")) {
/* do nothing, we already handled these args */
} else
if (!strcmp(argv[i], "-i") || !strcmp(argv[i], "--input")) {
requireval;
input = argv[++i];
} else
if (!strcmp(argv[i], "-o") || !strcmp(argv[i], "--output")) {
if (mode == MODE_INFO)
usage("You can't use %s in info mode!", argv[i]);
requireval;
output = argv[++i];
} else
if (!strcmp(argv[i], "-k") || !strcmp(argv[i], "--kernel")) {
args |= ARG_KERNEL;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(kernel);
requireval;
breakifdelete;
kernel = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-r") || !strcmp(argv[i], "--ramdisk")) {
args |= ARG_RAMDISK;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(ramdisk);
requireval;
breakifdelete;
ramdisk = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-s") || !strcmp(argv[i], "--second")) {
args |= ARG_SECOND;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(second);
requireval;
breakifdelete;
second = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--dt")) {
args |= ARG_DT;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(dt);
requireval;
breakifdelete;
dt = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-m") || !strcmp(argv[i], "--magic")
|| !strcmp(argv[i], "--board")) {
args |= ARG_BOARD;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(board);
requireval;
breakifdelete;
board = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-os") || !strcmp(argv[i], "--os_version")) {
args |= ARG_OS_VERSION;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(os_version);
requireval;
breakifdelete;
os_version = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-pl") || !strcmp(argv[i], "--patch_level")) {
args |= ARG_PATCH_LEVEL;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(patch_level);
requireval;
breakifdelete;
patch_level = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-l") || !strcmp(argv[i], "--cmdline")) {
args |= ARG_CMDLINE;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(cmdline);
requireval;
breakifdelete;
cmdline = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-p") || !strcmp(argv[i], "--pagesize")) {
args |= ARG_PAGESIZE;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
requireval;
pagesize = strtoul(argv[++i], 0, 10);
}
} else
if (!strcmp(argv[i], "-b") || !strcmp(argv[i], "--base")) {
args |= ARG_BASE;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
requireval;
base = strtoul(argv[++i], 0, 16);
}
} else
if (!strcmp(argv[i], "-ko")
|| !strcmp(argv[i], "--kernel_offset")) {
args |= ARG_KERNEL_OFFSET;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
requireval;
kernel_offset = strtoul(argv[++i], 0, 16);
}
} else
if (!strcmp(argv[i], "-ro")
|| !strcmp(argv[i], "--ramdisk_offset")) {
args |= ARG_RAMDISK_OFFSET;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
requireval;
ramdisk_offset = strtoul(argv[++i], 0, 16);
}
} else
if (!strcmp(argv[i], "-so")
|| !strcmp(argv[i], "--second_offset")) {
args |= ARG_SECOND_OFFSET;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
requireval;
second_offset = strtoul(argv[++i], 0, 16);
}
} else
if (!strcmp(argv[i], "-to")
|| !strcmp(argv[i], "--tags_offset")) {
args |= ARG_TAGS_OFFSET;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
requireval;
tags_offset = strtoul(argv[++i], 0, 16);
}
} else
#ifndef NO_MTK_SUPPORT
if (!strcmp(argv[i], "-km") || !strcmp(argv[i], "-mk")
|| !strcmp(argv[i], "--kernel_mtk")) {
args |= ARG_KERNEL_MTK;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(kernel_mtk);
requireval;
breakifdelete;
kernel_mtk = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-rm") || !strcmp(argv[i], "-mr")
|| !strcmp(argv[i], "--ramdisk_mtk")) {
args |= ARG_RAMDISK_MTK;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(ramdisk_mtk);
requireval;
breakifdelete;
ramdisk_mtk = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-sm") || !strcmp(argv[i], "-ms")
|| !strcmp(argv[i], "--second_mtk")) {
args |= ARG_SECOND_MTK;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(second_mtk);
requireval;
breakifdelete;
second_mtk = strdup(argv[++i]);
}
} else
if (!strcmp(argv[i], "-dm") || !strcmp(argv[i], "-md")
|| !strcmp(argv[i], "--dt_mtk")) {
args |= ARG_DT_MTK;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
unset(dt_mtk);
requireval;
breakifdelete;
dt_mtk = strdup(argv[++i]);
}
} else
#endif
if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--hash")) {
args |= ARG_HASH;
} else
if (!strcmp(argv[i], "-a") || !strcmp(argv[i], "--arg")) {
args |= ARG_CMDLINE_ARG;
switch (mode) {
case MODE_CREATE:
case MODE_UPDATE:
if (i > argc - 3)
usage("%s requires both an argument and a value!", argv[i]);
i += 2; /* we should handle this in update section */
continue;
}
usage("You can only use %s in update/create mode!", argv[i]);
} else
{ /* if it's not an argument, it's either an input or output */
switch (mode) {
case MODE_CREATE:
if (!output) {
output = argv[i];
continue;
}
/* Fall-through */
case MODE_INFO:
case MODE_UPDATE:
case MODE_UNPACK:
if (!input) {
input = argv[i];
continue;
}
if (mode == MODE_INFO)
break;
if (!output) {
output = argv[i];
continue;
}
}
usage("Unknown argument: %s", argv[i]);
}
}
if (verbose > 1)
info = -1 - INFO_ACTUALHASH; /* turn them all on! */
else
info = args;
switch (mode) {
case MODE_UNPACK:
case MODE_INFO:
goto info;
case MODE_CREATE:
goto create;
case MODE_UPDATE:
goto update;
}
goto free; /* this should never be reached, ret = 0 */
info:
if (!input)
specify("an input boot image");
if (mode == MODE_UNPACK && !output)
specify("an output directory");
if (mode == MODE_UNPACK && !stat(output, &st)
&& !S_ISDIR(st.st_mode) && (ret = ENOTDIR))
failto("create output directory");
if (!(image = load_boot_image(input)) && (ret = EINVAL))
failto("load boot image");
if (mode == MODE_UNPACK && !S_ISDIR(st.st_mode)
&& mkdir(output, NEW_DIR_PERMISSIONS) && (ret = errno))
failto("create output directory");
if (!verbose)
goto unpack;
if (!info) {
info = INFO_BASE | INFO_PAGESIZE | INFO_HASH
| INFO_KERNEL_OFFSET | INFO_RAMDISK_OFFSET
| INFO_SECOND_OFFSET | INFO_TAGS_OFFSET;
if (*image->hdr.board)
info |= INFO_MAGIC;
if (image->hdr.os_version)
info |= INFO_OS_VERSION | INFO_PATCH_LEVEL;
if (*image->hdr.cmdline)
info |= INFO_CMDLINE;
if (image->kernel.size)
info |= INFO_KERNEL_SIZE;
if (image->ramdisk.size)
info |= INFO_RAMDISK_SIZE;
if (image->second.size)
info |= INFO_SECOND_SIZE;
if (image->dt.size)
info |= INFO_DT_SIZE;
#ifndef NO_MTK_SUPPORT
if (image->kernel.mtk_header)
info |= INFO_KERNEL_MTK;
if (image->ramdisk.mtk_header)
info |= INFO_RAMDISK_MTK;
if (image->second.mtk_header)
info |= INFO_SECOND_MTK;
if (image->dt.mtk_header)
info |= INFO_DT_MTK;
#endif
if (image->chromeos)
info |= INFO_CHROMEOS;
}
if (args & ARG_HASH)
info |= INFO_ACTUALHASH;
print_boot_info(image, info);
if (mode == MODE_INFO)
goto free;
/* otherwise continue to unpack */
unpack:
args &= ~ARG_HASH; /* so --hash doesn't extract nothing */
if (args & ARG_BOARD || !args) {
setfile("board");
write_string_to_file(file, (char*)image->hdr.board);
}
if (args & ARG_OS_VERSION || !args) {
os_version = bootimg_get_os_version(image);
if (os_version) {
setfile("os_version");
write_string_to_file(file, os_version);
}
}
if (args & ARG_PATCH_LEVEL || !args) {
patch_level = bootimg_get_patch_level(image);
if (patch_level) {
setfile("patch_level");
write_string_to_file(file, patch_level);
}
}
if (args & ARG_CMDLINE || !args) {
setfile("cmdline");
write_string_to_file(file, (char*)image->hdr.cmdline);
}
if (args & ARG_PAGESIZE || !args) {
setfile("pagesize");
sprintf(hex, "%u", image->hdr.pagesize);
write_string_to_file(file, hex);
}
if (args & ARG_BASE || !args) {
setfile("base");
sprintf(hex, "%08X", image->base);
write_string_to_file(file, hex);
}
if (args & ARG_KERNEL_OFFSET || !args) {
setfile("kernel_offset");
sprintf(hex, "%08X", image->kernel.offset);
write_string_to_file(file, hex);
}
if (args & ARG_RAMDISK_OFFSET || !args) {
setfile("ramdisk_offset");
sprintf(hex, "%08X", image->ramdisk.offset);
write_string_to_file(file, hex);
}
if (args & ARG_SECOND_OFFSET || !args) {
setfile("second_offset");
sprintf(hex, "%08X", image->second.offset);
write_string_to_file(file, hex);
}
if (args & ARG_TAGS_OFFSET || !args) {
setfile("tags_offset");
sprintf(hex, "%08X", image->tags_offset);
write_string_to_file(file, hex);
}
if (args & ARG_KERNEL || (!args && image->kernel.size)) {
setfile("kernel");
bootimg_save(image, BOOTIMG_KERNEL, file);
}
if (args & ARG_RAMDISK || (!args && image->ramdisk.size)) {
setfile("ramdisk");
bootimg_save(image, BOOTIMG_RAMDISK, file);
}
if (args & ARG_SECOND || (!args && image->second.size)) {
setfile("second");
bootimg_save(image, BOOTIMG_SECOND, file);
}
if (args & ARG_DT || (!args && image->dt.size)) {
setfile("dt");
bootimg_save(image, BOOTIMG_DT, file);
}
#ifndef NO_MTK_SUPPORT
if (args & ARG_KERNEL_MTK || (!args && image->kernel.mtk_header)) {
setfile("kernel_mtk");
if (image->kernel.mtk_header)
write_string_to_file(file, (char*)image->kernel.mtk_header->string);
else
write_string_to_file(file, 0);
}
if (args & ARG_RAMDISK_MTK || (!args && image->ramdisk.mtk_header)) {
setfile("ramdisk_mtk");
if (image->ramdisk.mtk_header)
write_string_to_file(file, (char*)image->ramdisk.mtk_header->string);
else
write_string_to_file(file, 0);
}
if (args & ARG_SECOND_MTK || (!args && image->second.mtk_header)) {
setfile("second_mtk");
if (image->second.mtk_header)
write_string_to_file(file, (char*)image->second.mtk_header->string);
else
write_string_to_file(file, 0);
}
if (args & ARG_DT_MTK || (!args && image->dt.mtk_header)) {
setfile("dt_mtk");
if (image->dt.mtk_header)
write_string_to_file(file, (char*)image->dt.mtk_header->string);
else
write_string_to_file(file, 0);
}
#endif
if (image->chromeos) {
setfile("chromeos");
write_string_to_file(file, 0);
}
goto free;
create:
if (!output)
specify("an output boot image");
image = new_boot_image();
if (!input)
goto modify;
if (!(dfd = opendir(input)) && (ret = errno))
failto("open boot image directory");
while ((dp = readdir(dfd))) {
c = dp->d_name;
if (strrchr(c, '-')) {
/* prefixed by a base name, ex. boot.img */
c = strrchr(c, '-') + 1;
if (!*c)
continue; /* - is the last character */
}
snprintf(file, sizeof(file), "%s/%s", input, dp->d_name);
if (stat(file, &st) || !S_ISREG(st.st_mode))
continue;
if (!(args & ARG_BOARD) && !strcmp(c, "board")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("board");
board = strdup(buf);
args |= ARG_BOARD;
continue;
}
if (!(args & ARG_OS_VERSION) && !strcmp(c, "os_version")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("os_version");
os_version = strdup(buf);
args |= ARG_OS_VERSION;
continue;
}
if (!(args & ARG_PATCH_LEVEL) && !strcmp(c, "patch_level")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("patch_level");
patch_level = strdup(buf);
args |= ARG_PATCH_LEVEL;
continue;
}
if (!(args & ARG_CMDLINE) && !strcmp(c, "cmdline")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("cmdline");
cmdline = strdup(buf);
args |= ARG_CMDLINE;
continue;
}
if (!(args & ARG_PAGESIZE) && !strcmp(c, "pagesize")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("pagesize");
pagesize = strtoul(buf, 0, 10);
args |= ARG_PAGESIZE;
continue;
}
if (!(args & ARG_BASE) && !strcmp(c, "base")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("base");
base = strtoul(buf, 0, 16);
args |= ARG_BASE;
continue;
}
if (!(args & ARG_KERNEL_OFFSET) && !strcmp(c, "kernel_offset")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("kernel_offset");
kernel_offset = strtoul(buf, 0, 16);
args |= ARG_KERNEL_OFFSET;
continue;
}
if (!(args & ARG_RAMDISK_OFFSET) && !strcmp(c, "ramdisk_offset")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("ramdisk_offset");
ramdisk_offset = strtoul(buf, 0, 16);
args |= ARG_RAMDISK_OFFSET;
continue;
}
if (!(args & ARG_SECOND_OFFSET) && !strcmp(c, "second_offset")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("second_offset");
second_offset = strtoul(buf, 0, 16);
args |= ARG_SECOND_OFFSET;
continue;
}
if (!(args & ARG_TAGS_OFFSET) && !strcmp(c, "tags_offset")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("tags_offset");
tags_offset = strtoul(buf, 0, 16);
args |= ARG_TAGS_OFFSET;
continue;
}
if (!(args & ARG_KERNEL) && !strcmp(c, "kernel")) {
foundfile("kernel");
kernel = strdup(file);
args |= ARG_KERNEL;
continue;
}
if (!(args & ARG_RAMDISK) && !strcmp(c, "ramdisk")) {
foundfile("ramdisk");
ramdisk = strdup(file);
args |= ARG_RAMDISK;
continue;
}
if (!(args & ARG_SECOND) && !strcmp(c, "second")) {
foundfile("second");
second = strdup(file);
args |= ARG_SECOND;
continue;
}
if (!(args & ARG_DT) && !strcmp(c, "dt")) {
foundfile("dt");
dt = strdup(file);
args |= ARG_DT;
continue;
}
#ifndef NO_MTK_SUPPORT
if (!(args & ARG_KERNEL_MTK) && !strcmp(c, "kernel_mtk")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("kernel_mtk");
kernel_mtk = strdup(buf);
args |= ARG_KERNEL_MTK;
continue;
}
if (!(args & ARG_RAMDISK_MTK) && !strcmp(c, "ramdisk_mtk")) {
if (read_string_from_file(file, buf, sizeof(buf)))
continue;
foundfile("ramdisk_mtk");
ramdisk_mtk = strdup(buf);
args |= ARG_RAMDISK_MTK;
continue;