diff options
| author | Tony Ambardar <itugrok@yahoo.com> | 2022-12-01 18:00:30 -0800 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2023-01-01 21:45:44 +0100 |
| commit | af4f635eed28588994418bff3862b8bf34d54e7d (patch) | |
| tree | 18e62b52681bdccf482d47ac20550af6d5b2e863 | |
| parent | 4bda308657bb39f3ad4a0d294a89ac867b8801a7 (diff) | |
| download | openwrt-af4f635eed28588994418bff3862b8bf34d54e7d.tar.gz | |
ipq40xx: sysupgrade: allow flashing Linksys factory firmware
Allow forced flashing of a factory firmware image, after checking for the
correct FIT magic header and Linksys board-specific footer. Details of the
footer are already described in scripts/linksys-image.sh.
This is convenient as it avoids using a TFTP server or OEM GUI, and allows
restoring OEM firmware or installing a "breaking" OpenWrt update (e.g DSA
migration and kernel repartition) directly from the command line.
Devices supported at this time include EA6350v3, EA8300, MR8300 and WHW01.
Reviewed-by: Robert Marko <robimarko@gmail.com>
Tested-by: Wyatt Martin <wawowl@gmail.com> # WHW01
Tested-by: Tony Ambardar <itugrok@yahoo.com> # EA6350v3
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
(cherry picked from commit 6fc334cbdc2b1716786768c545b761b338962b43)
| -rw-r--r--[-rwxr-xr-x] | target/linux/ipq40xx/base-files/lib/upgrade/linksys.sh | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/target/linux/ipq40xx/base-files/lib/upgrade/linksys.sh b/target/linux/ipq40xx/base-files/lib/upgrade/linksys.sh index f1dc81f7c9..5d25c20ad7 100755..100644 --- a/target/linux/ipq40xx/base-files/lib/upgrade/linksys.sh +++ b/target/linux/ipq40xx/base-files/lib/upgrade/linksys.sh @@ -47,6 +47,14 @@ linksys_get_target_firmware() { esac } +linksys_is_factory_image() { + local board=$(board_name) + board=${board##*,} + + # check matching footer signature + tail -c 256 $1 | grep -q -i "\.LINKSYS\.........${board}" +} + platform_do_upgrade_linksys() { local magic_long="$(get_magic_long "$1")" @@ -99,4 +107,14 @@ platform_do_upgrade_linksys() { echo "writing \"$1\" image to \"$part_label\"" get_image "$1" | mtd write - "$part_label" } + + [ "$magic_long" = "d00dfeed" ] && { + if ! linksys_is_factory_image "$1"; then + echo "factory image doesn't match device" + return 1 + fi + + echo "writing \"$1\" factory image to \"$part_label\"" + get_image "$1" | mtd -e "$part_label" write - "$part_label" + } } |