firmware-utils, branch master

zyimage: make output byte order explicit

2026-09-23T21:53:02Z

device_id and crc32 were written in native host byte order, with no byte-swap calls at all, so the on-disk output was only correct on little-endian build hosts. Make the existing little-endian behavior explicit with htole32() and document the byte layout, so a porter reading the vendor's CONFIG_TARGET_DEVICE_ID can map it to the equivalent OpenWrt ZYIMAGE_ID. Assisted-By: Claude Signed-off-by: Aleksei Sviridkin Link: https://github.com/openwrt/firmware-utils/pull/75 Signed-off-by: Jonas Jelonek

asusuimage: fix fs_offset extraction in show_info

2026-09-23T21:30:04Z

This code was apparently intended to look for FS_OFFSET_PREFIX and then read the big-endian 24-bit value just after it. Instead, it did always read the value from a fixed offset. This fixes using bogus (or zero) values of `fs_offset` when analysing TRXv2 images for Asus RT-AX53U. Now the values agree with what the `binwalk` tool prints. This patch modifies the show_info() function, which is used only for firmware analysis and not in an OpenWRT build. Signed-off-by: Mateusz Jończyk Link: https://github.com/openwrt/firmware-utils/pull/66 Signed-off-by: Jonas Jelonek

mksenaofw: warn instead of erroring on plain type-0 images

2026-09-23T21:25:26Z

firmware_type 0 ("combo") is currently a fatal error unless a capwap header is supplied. Some rebranded Senao devices ship a plain type-0 header with no capwap section -- notably the Netgear WAX214 and WAX218 (vendor_id 0x231), whose stock web-UI updater accepts the bare 0x60 img_header + magic-XOR'd payload. Downgrade that case to a non-fatal warning. Capwap encodes always set a datecode (-c), so this only affects a type-0 encode with no capwap arguments; encode_image() already omits the capwap section and computes the checksum over the 0x60 header alone when no capwap header is supplied, so a plain image is produced correctly. Signed-off-by: Misha Hawthorn Link: https://github.com/openwrt/firmware-utils/pull/76 Signed-off-by: Jonas Jelonek

mkzynfw: align RTL_OTTO_BOARD definitions

2026-09-23T21:22:31Z

Align the RTL_OTTO_BOARD definitions internally, adding spaces to the different parameters to have a cleaner and easier to read table. Link: https://github.com/openwrt/firmware-utils/pull/77 Signed-off-by: Jonas Jelonek

mkzynfw: add board profiles for Zyxel XGS2220 series

2026-09-23T21:22:31Z

Add board profiles for Zyxel XGS2220 switches, a series of 6 switches based on RTL931x platform. The profiles have been extracted from stock firmware. Link: https://github.com/openwrt/firmware-utils/pull/77 Signed-off-by: Jonas Jelonek

uimage_padhdr: add options to insert data into padding area

2026-07-30T06:53:14Z

Add two new command-line options, both repeatable, to write arbitrary data at specific byte offsets within the zero-filled padding area that is appended after the uImage header: -x offset:hexstring Insert raw bytes specified as a hex string -s offset:string Insert an ASCII string (without NUL terminator, since the padding is already zero-filled) Offsets are relative to the start of the padding area and accept both decimal and hexadecimal (0x-prefixed) notation. Validate that every patch fits within the configured padding before modifying the image, preventing silent data corruption. Patches are applied to the buffer before the header CRC is recalculated, so the checksum correctly covers the inserted content. Signed-off-by: Luiz Angelo Daros de Luca Link: https://github.com/openwrt/firmware-utils/pull/71 Signed-off-by: Jonas Jelonek

uimage_padhdr: improve error handling and cleanup

2026-07-30T06:53:14Z

Replace abrupt exit(1) calls with a 'goto out' cleanup pattern. This ensures that opened file descriptors (ifd, ofd) are properly closed and allocated memory (filebuf) is safely freed when an error occurs during execution, preventing resource leaks. Signed-off-by: Luiz Angelo Daros de Luca Link: https://github.com/openwrt/firmware-utils/pull/71 Signed-off-by: Jonas Jelonek

mkzynfw: add board definitions for Zyxel GS1920 v1 series

2026-07-19T20:42:18Z

Add board definitions for Zyxel GS1920 v1 switches. Co-authored-by: Karl Egly Signed-off-by: Jonas Jelonek

mkzynfw: add board definitions for GS2210 series

2026-07-19T20:41:25Z

Add further board definitions for Zyxel GS2210 switches. Co-authored-by: Karl Egly Signed-off-by: Jonas Jelonek

Revert "mkzynfw: add board definitions for GS2210 series"

2026-07-19T20:40:07Z

This reverts commit 162fa533b309a721a01eb27901a38e1b20c31c60. It doesn't have a proper SoB from the author and misses a proper commit message body. Signed-off-by: Jonas Jelonek