geekman/xqrepack
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Language: Shell .
patch XiaoQiang images to maintain SSH & UART access
最后发布版本: v1.1 ( 2021-04-13 23:34:00)
xqrepack
These scripts allow you to modify the Xiaomi AX3600 (R3600) and Xiaomi AX1800 (RM1800) firmware image to make sure SSH and UART access is always enabled.
The default root password is password
. Please remember to login to the router and change that after the upgrade. Your router settings like IP address and SSIDs are stored in the nvram and should stay the same.
⚠ The script also tries its best to remove or disable phone-home binaries, and also the smart controller (AIoT) parts, leaving you with a (close to) OpenWRT router that you can configure via UCI or /etc/config
.
Between preserving stock functionality and privacy concerns, I would err on the side of caution and rather that some functionality be sacrificed for a router that I have more confidence to connect to the Internet.
Note that in order to get SSH access to the router initially, you need to downgrade the AX3600 to version 1.0.17 and exploit it first / downgrade the AX1800 to version 1.0.378 (or below) and exploit it first. Once you have SSH, you can use this repacking method to maintain SSH access for newer versions.
Requirements
You will need to install the following tools:
- ubi_reader
- ubinize
- unsquashfs / mksquashfs
- fakeroot
Usage
-
Download the firmware from miwifi.com. It should be something like
miwifi_r3600_firmware_xxxx_y.y.yyy.bin
ormiwifi_rm1800_firmware_xxxx_y.y.yyy.bin
. -
Use the
ubireader_extract_images
utility from ubi_reader to unpack the UBI image from the firmware. Technically there's junk at the front, but the script will ignore it:ubireader_extract_images -w miwifi_r3600_firmware_xxx_yyy.bin
The unpacked files will be in the
ubifs-root/miwifi_r3600_firmware...
directory. -
Patch the rootfs using the
repack-squashfs.sh
script:fakeroot -- ./repack-squashfs.sh ubifs-root/miwifi_r3600_firmware.../img-264..._vol-ubi_rootfs.ubifs
The script will create a new squashfs image with the
.new
suffix. You will needfakeroot
in order to create files and devices asroot
. You could also run this script asroot
, but please don't. -
Recombine the kernel and patched rootfs with
ubinize.sh
:for R3600:
./ubinize.sh ubifs-root/miwifi_r3600_firmware.../...kernel.ubifs \ ubifs-root/miwifi_r3600_firmware.../...ubi_rootfs.ubifs.new
for RM1800:
./ubinize.sh ubifs-root/miwifi_rm1800_firmware.../...kernel.ubifs \ ubifs-root/miwifi_rm1800_firmware.../...ubi_rootfs.ubifs.new \ --data
Note the use of the
.ubifs.new
file. The combined output file will ber3600-raw-img.bin
, even if you are using a rm1800 image! -
Flash this file directly into the router using SSH. You cannot use the web UI because this is a raw image, and more importantly has no signature.
If you are using a recently xqrepack'ed firmware, you can use the
xqflash
utility on the router to flash an update image:xqflash /tmp/r3600-raw-img.bin
After it completes successfully, you should be able to
reboot
.If the
xqflash
utility is not available, you can manually flash the update image described in the following section.
Manual Flashing
The R3600 firmware uses an A/B partition system, called rootfs
and rootfs_1
. This corresponds to mtd12
and mtd13
. Find the partition that is not the one in use and use ubiformat
to write the raw image onto the partition:
ubiformat /dev/mtd12 -f /tmp/r3600-raw-img.bin -s 2048 -O 2048
Set the nvram variable to re-initialize /etc
(and I think to switch partitions also):
nvram set flag_ota_reboot=1
nvram commit
reboot
A/B Partitions
You can check the MTD partitions from /proc/mtd
:
root@XiaoQiang:~# grep rootfs /proc/mtd
mtd12: 023c0000 00020000 "rootfs"
mtd13: 023c0000 00020000 "rootfs_1"
mtd17: 015cc000 0001f000 "ubi_rootfs"
root@XiaoQiang:~# nvram get flag_boot_rootfs
1
The flag_boot_rootfs
nvram variable indicates which partition is booted, 0
or 1
.
You should pick the partition that is not in use, otherwise ubiformat
will complain:
ubiformat: error!: please, first detach mtd13 (/dev/mtd13) from ubi0
License
xqrepack is licensed under the 3-clause ("modified") BSD License.
Copyright (C) 2020-2021 Darell Tan
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- 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.
- The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "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 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.
最近版本更新:(数据更新于 2024-09-23 09:10:06)
2021-04-13 23:34:00 v1.1
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