John Thomson 7d33aedd10 generic: platform/mikrotik: add wlan lz77 decompress ... A number of new (or with recently updated caldata) Mikrotik devices are using LZ77 magic for wlan tag hard_config data. New devices include the Chateau LTE12 [1], and ax devices [2] Newly factory flashed devices may include the hap ac3 [3] This can be seen in decoded OEM supout [4] dmesg: "radio data lz77 decompressed from"… Investigating an arm RouterOS flash.ko module, and supplied example hard_config dumps, the format was guessed via decompilation and live debugging [5]. This decoder was then built from the guessed format specification. debug prints can be enabled in a DYNAMIC_DEBUG kernel build via the kernel cmdline: chosen { - bootargs = "console=ttyS0,115200"; + bootargs = "console=ttyS0,115200 dyndbg=\"file drivers/platform/mikrotik/* +p\""; }; [1]: https://forum.openwrt.org/t/no-wireless-mikrotik-rbd53ig-5hacd2hnd/157763/4 [2]: https://forum.openwrt.org/t/mikrotik-routeros-v7-x-and-openwrt-sysupgrade/148072/17 [3]: https://forum.openwrt.org/t/adding-support-for-mikrotik-hap-ax2/133715/47 [4]: https://github.com/farseeker/go-mikrotik-rif [5]: https://github.com/john-tho/routeros-wlan-lz77-decode Signed-off-by: John Thomson <git@johnthomson.fastmail.com.au> Link: https://github.com/openwrt/openwrt/pull/15774 Signed-off-by: Robert Marko <robimarko@gmail.com>		2024-10-08 10:45:58 +02:00
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mikrotik	generic: platform/mikrotik: add wlan lz77 decompress	2024-10-08 10:45:58 +02:00