2017-09-14 17:11:56 +02:00
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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2018-10-25 03:08:06 +02:00
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#include <mincrypt/sha.h>
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2019-02-10 09:57:51 +01:00
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#include <logging.h>
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#include <utils.h>
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#include <flags.h>
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2018-10-25 03:08:06 +02:00
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2017-02-27 22:37:47 +01:00
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#include "magiskboot.h"
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2019-02-21 02:49:26 +01:00
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#include "compress.h"
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2016-09-08 14:59:48 +02:00
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2019-06-16 00:59:57 +02:00
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using namespace std;
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2017-02-24 20:29:12 +01:00
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static void usage(char *arg0) {
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2017-04-27 21:15:48 +02:00
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fprintf(stderr,
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2019-09-20 09:53:58 +02:00
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FULL_VER(MagiskBoot) R"EOF( - Boot Image Modification Tool
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Usage: %s <action> [args...]
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Supported actions:
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unpack [-h] <bootimg>
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Unpack <bootimg> to, if available, kernel, kernel_dtb, ramdisk.cpio,
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second, dtb, extra, and recovery_dtbo into current directory.
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If '-h' is provided, it will dump header info to 'header',
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which will be parsed when repacking.
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Return values:
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0:valid 1:error 2:chromeos
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repack [-n] <origbootimg> [outbootimg]
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Repack boot image components from current directory
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to [outbootimg], or new-boot.img if not specified.
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If '-n' is provided, it will not attempt to recompress ramdisk.cpio,
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otherwise it will compress ramdisk.cpio and kernel with the same method
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in <origbootimg> if the file provided is not already compressed.
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hexpatch <file> <hexpattern1> <hexpattern2>
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Search <hexpattern1> in <file>, and replace with <hexpattern2>
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cpio <incpio> [commands...]
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Do cpio commands to <incpio> (modifications are done directly)
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Each command is a single argument, add quotes for each command
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Supported commands:
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exists ENTRY
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Return 0 if ENTRY exists, else return 1
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rm [-r] ENTRY
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Remove ENTRY, specify [-r] to remove recursively
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mkdir MODE ENTRY
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Create directory ENTRY in permissions MODE
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ln TARGET ENTRY
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Create a symlink to TARGET with the name ENTRY
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mv SOURCE DEST
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Move SOURCE to DEST
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add MODE ENTRY INFILE
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Add INFILE as ENTRY in permissions MODE; replaces ENTRY if exists
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extract [ENTRY OUT]
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Extract ENTRY to OUT, or extract all entries to current directory
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test
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Test the current cpio's patch status
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Return values:
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0:stock 1:Magisk 2:unsupported (phh, SuperSU, Xposed)
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patch KEEPVERITY KEEPFORCEENCRYPT
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Ramdisk patches. KEEP**** are boolean values
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backup ORIG
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Create ramdisk backups from ORIG
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restore
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Restore ramdisk from ramdisk backup stored within incpio
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sha1
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Print stock boot SHA1 if previously backed up in ramdisk
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dtb <dtb> <command> [args...]
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Do commands to <dtb> (modifications are done directly)
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Supported commands:
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print [-f]
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Print all contents from dtb for debugging
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Specify [-f] to only print fstab nodes
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test
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Check if fstab has verity/avb flags
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Return values:
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0:flag exists 1:no flags
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patch
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Search for fstab and remove verity/avb
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compress[=method] <infile> [outfile]
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Compress <infile> with [method] (default: gzip), optionally to [outfile]
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<infile>/[outfile] can be '-' to be STDIN/STDOUT
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Supported methods: )EOF", arg0);
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2019-03-07 13:24:06 +01:00
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for (auto &it : name2fmt)
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fprintf(stderr, "%s ", it.first.data());
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2019-09-20 09:53:58 +02:00
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fprintf(stderr, R"EOF(
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decompress <infile> [outfile]
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Detect method and decompress <infile>, optionally to [outfile]
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<infile>/[outfile] can be '-' to be STDIN/STDOUT
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Supported methods: )EOF");
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2019-03-07 13:24:06 +01:00
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for (auto &it : name2fmt)
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fprintf(stderr, "%s ", it.first.data());
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2019-09-20 09:53:58 +02:00
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fprintf(stderr, R"EOF(
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sha1 <file>
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Print the SHA1 checksum for <file>
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cleanup
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Cleanup the current working directory
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)EOF");
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2017-03-07 17:54:23 +01:00
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2017-02-24 20:29:12 +01:00
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exit(1);
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}
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2017-02-24 07:58:44 +01:00
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int main(int argc, char *argv[]) {
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2018-10-25 03:08:06 +02:00
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cmdline_logging();
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2017-12-03 20:14:04 +01:00
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umask(0);
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2019-03-07 13:24:06 +01:00
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2019-03-08 00:07:23 +01:00
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if (argc < 2)
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usage(argv[0]);
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// Skip '--' for backwards compatibility
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2019-06-16 00:59:57 +02:00
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string_view action(argv[1]);
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if (str_starts(action, "--"))
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action = argv[1] + 2;
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2019-03-08 00:07:23 +01:00
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2019-06-16 00:59:57 +02:00
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if (action == "cleanup") {
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2017-12-20 20:36:18 +01:00
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fprintf(stderr, "Cleaning up...\n");
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2019-03-08 03:32:01 +01:00
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unlink(HEADER_FILE);
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2017-09-14 17:11:56 +02:00
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unlink(KERNEL_FILE);
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unlink(RAMDISK_FILE);
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unlink(SECOND_FILE);
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2019-03-13 21:51:22 +01:00
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unlink(KER_DTB_FILE);
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2017-10-07 16:08:10 +02:00
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unlink(EXTRA_FILE);
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2018-10-25 03:08:49 +02:00
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unlink(RECV_DTBO_FILE);
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2019-03-13 21:51:22 +01:00
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unlink(DTB_FILE);
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2019-06-16 00:59:57 +02:00
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} else if (argc > 2 && action == "sha1") {
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2018-01-29 08:34:05 +01:00
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uint8_t sha1[SHA_DIGEST_SIZE];
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void *buf;
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2017-03-09 21:08:17 +01:00
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size_t size;
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2019-02-25 05:09:34 +01:00
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mmap_ro(argv[2], buf, size);
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2018-01-29 08:34:05 +01:00
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SHA_hash(buf, size, sha1);
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2019-03-07 13:24:06 +01:00
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for (uint8_t i : sha1)
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printf("%02x", i);
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2017-07-24 20:02:19 +02:00
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printf("\n");
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2017-03-09 21:08:17 +01:00
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munmap(buf, size);
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2019-06-16 00:59:57 +02:00
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} else if (argc > 2 && action == "unpack") {
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if (argv[2] == "-h"sv) {
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2019-03-08 03:32:01 +01:00
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if (argc == 3)
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usage(argv[0]);
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return unpack(argv[3], true);
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} else {
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return unpack(argv[2]);
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}
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2019-06-16 03:12:12 +02:00
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} else if (argc > 2 && action == "repack") {
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2019-06-16 00:59:57 +02:00
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if (argv[2] == "-n"sv) {
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if (argc == 3)
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2019-06-07 20:56:20 +02:00
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usage(argv[0]);
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repack(argv[3], argv[4] ? argv[4] : NEW_BOOT, true);
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} else {
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repack(argv[2], argv[3] ? argv[3] : NEW_BOOT);
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}
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2019-06-16 00:59:57 +02:00
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} else if (argc > 2 && action == "decompress") {
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2019-02-21 02:49:26 +01:00
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decompress(argv[2], argv[3]);
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2019-06-16 00:59:57 +02:00
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} else if (argc > 2 && str_starts(action, "compress")) {
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compress(action[8] == '=' ? &action[9] : "gzip", argv[2], argv[3]);
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} else if (argc > 4 && action == "hexpatch") {
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2019-06-08 14:29:30 +02:00
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return hexpatch(argv[2], argv[3], argv[4]);
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2019-06-16 00:59:57 +02:00
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} else if (argc > 2 && action == "cpio"sv) {
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if (cpio_commands(argc - 2, argv + 2))
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usage(argv[0]);
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2019-09-20 09:53:58 +02:00
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} else if (argc > 2 && action == "dtb") {
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if (dtb_commands(argc - 2, argv + 2))
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2018-01-28 19:44:30 +01:00
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usage(argv[0]);
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2017-03-07 17:54:23 +01:00
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} else {
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usage(argv[0]);
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2016-09-08 14:59:48 +02:00
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}
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2017-02-24 20:29:12 +01:00
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2017-03-07 17:54:23 +01:00
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return 0;
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2017-02-24 07:58:44 +01:00
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}
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