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ath79: remove 'fakeroot' for Senao devices

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By using the same custom kernel header magic
in both OKLI lzma-loader, DTS, and makefile
this hack is not necessary anymore

However, "rootfs" size and checksum
must now be supplied by the factory.bin image
through a script that is accepted by the OEM upgrade script.

This is because Senao OEM scripts assume a squashfs header exists
at the offset for the original "rootfs" partition
which is actually the kernel + rootfs in this implementation,
and takes size value from the header that would be there with hexdump,
but this offset is now the uImage header instead.

This frees up 1 eraseblock
previously used by the "fakeroot" partition
for bypassing the OEM image verification.

Also, these Senao devices with a 'failsafe' partition
and the tar-gz factory.bin platform would otherwise require
flashing the new tar-gz sysupgrade.bin afterward.
So this also prevents having to flash both images
when starting from OEM or 'failsafe'

the OEM upgrade script verifies the header magic numbers,
but only the first two bytes.
Example:

    [ "${magic_word_kernel}" = "2705" ] &&
    [ "${magic_word_rootfs}" = "7371" -o "${magic_word_rootfs}" = "6873" ] &&
    errcode="0"

therefore picked the magic number
0x73714f4b
which is
'sqOK'

Signed-off-by: Michael Pratt <mcpratt@pm.me>
This commit is contained in:
Michael Pratt 2021-02-24 22:55:09 -05:00 committed by Petr Štetiar
parent 1b8bd17c2d
commit 4a0cc5d4ef
6 changed files with 38 additions and 49 deletions
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12
target/linux/ath79/dts/ar724x_senao_loader.dtsi
View File

@ -15,7 +15,7 @@
partition@0 {
compatible = "openwrt,uimage", "denx,uimage";
openwrt,ih-magic = <IH_MAGIC_OKLI>;
openwrt,ih-magic = <0x73714f4b>;
label = "firmware";
reg = <0x0 0x0>;
};
@ -64,15 +64,9 @@
reg = <0xb0000 0xf0000>;
};
partition@1a0000 {
label = "fakeroot";
reg = <0x1a0000 0x10000>;
read-only;
};
fwconcat0: partition@1b0000 {
fwconcat0: partition@1a0000 {
label = "fwconcat0";
reg = <0x1b0000 0x4c0000>;
reg = <0x1a0000 0x4d0000>;
};
partition@670000 {

12
target/linux/ath79/dts/ar934x_senao_loader.dtsi
View File

@ -15,7 +15,7 @@
partition@0 {
compatible = "openwrt,uimage", "denx,uimage";
openwrt,ih-magic = <IH_MAGIC_OKLI>;
openwrt,ih-magic = <0x73714f4b>;
label = "firmware";
reg = <0x0 0x0>;
};
@ -68,15 +68,9 @@
reg = <0x0b0000 0x170000>;
};
partition@220000 {
label = "fakeroot";
reg = <0x220000 0x010000>;
read-only;
};
fwconcat0: partition@230000 {
fwconcat0: partition@220000 {
label = "fwconcat0";
reg = <0x230000 0xbc0000>;
reg = <0x220000 0xbd0000>;
};
partition@df0000 {

12
target/linux/ath79/dts/qca955x_senao_loader.dtsi
View File

@ -17,7 +17,7 @@
partition@0 {
compatible = "openwrt,uimage", "denx,uimage";
openwrt,ih-magic = <IH_MAGIC_OKLI>;
openwrt,ih-magic = <0x73714f4b>;
label = "firmware";
reg = <0x0 0x0>;
};
@ -66,15 +66,9 @@
reg = <0x0b0000 0x170000>;
};
partition@220000 {
label = "fakeroot";
reg = <0x220000 0x010000>;
read-only;
};
fwconcat0: partition@230000 {
fwconcat0: partition@220000 {
label = "fwconcat0";
reg = <0x230000 0xb40000>;
reg = <0x220000 0xb50000>;
};
partition@d70000 {

15
target/linux/ath79/image/common-senao.mk
View File

@ -3,30 +3,37 @@ DEVICE_VARS += SENAO_IMGNAME
# This needs to make /tmp/_sys/sysupgrade.tgz an empty file prior to
# sysupgrade, as otherwise it will implant the old configuration from
# OEM firmware when writing rootfs from factory.bin
# rootfs size and checksum is taken from a squashfs header
# the header does not exist, therefore, supply the size and md5
define Build/senao-tar-gz
-[ -f "$@" ] && \
mkdir -p $@.tmp && \
touch $@.tmp/failsafe.bin && \
echo '#!/bin/sh' > $@.tmp/before-upgrade.sh && \
echo ': > /tmp/_sys/sysupgrade.tgz' >> $@.tmp/before-upgrade.sh && \
echo -n $$(( $$(cat $@ | wc -c) / 4096 * 4096 )) > $@.len && \
dd if=$@ bs=$$(cat $@.len) count=1 | md5sum - | cut -d ' ' -f 1 > $@.md5 && \
echo '#!/bin/sh' > $@.tmp/after-upgrade.sh && \
printf 'fw_setenv rootfs_size 0x%08x\n' $$(cat $@.len) >> $@.tmp/after-upgrade.sh && \
printf 'fw_setenv rootfs_checksum %s\n' $$(cat $@.md5) >> $@.tmp/after-upgrade.sh && \
$(CP) $(KDIR)/loader-$(DEVICE_NAME).uImage \
$@.tmp/openwrt-$(word 1,$(1))-uImage-lzma.bin && \
$(CP) $@ $@.tmp/openwrt-$(word 1,$(1))-root.squashfs && \
$(TAR) -cp --numeric-owner --owner=0 --group=0 --mode=a-s --sort=name \
$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
-C $@.tmp . | gzip -9n > $@ && \
rm -rf $@.tmp
rm -rf $@.tmp $@.len $@.md5
endef
define Device/senao_loader_okli
KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x4f4b4c49
KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x73714f4b
LOADER_KERNEL_MAGIC := 0x73714f4b
LOADER_TYPE := bin
COMPILE := loader-$(1).bin loader-$(1).uImage
COMPILE/loader-$(1).bin := loader-okli-compile
COMPILE/loader-$(1).uImage := append-loader-okli $(1) | pad-to 64k | lzma | \
uImage lzma
IMAGES += factory.bin
IMAGE/factory.bin := append-squashfs-fakeroot-be | pad-to $$$$(BLOCKSIZE) | \
append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
check-size | senao-tar-gz $$$$(SENAO_IMGNAME)
endef

24
target/linux/ath79/image/generic.mk
View File

@ -994,8 +994,8 @@ define Device/engenius_eap1200h
DEVICE_VENDOR := EnGenius
DEVICE_MODEL := EAP1200H
DEVICE_PACKAGES := ath10k-firmware-qca988x-ct kmod-ath10k-ct
IMAGE_SIZE := 11520k
LOADER_FLASH_OFFS := 0x230000
IMAGE_SIZE := 11584k
LOADER_FLASH_OFFS := 0x220000
SENAO_IMGNAME := ar71xx-generic-eap1200h
endef
TARGET_DEVICES += engenius_eap1200h
@ -1006,8 +1006,8 @@ define Device/engenius_eap300-v2
DEVICE_VENDOR := EnGenius
DEVICE_MODEL := EAP300
DEVICE_VARIANT := v2
IMAGE_SIZE := 12032k
LOADER_FLASH_OFFS := 0x230000
IMAGE_SIZE := 12096k
LOADER_FLASH_OFFS := 0x220000
SENAO_IMGNAME := senao-eap300v2
endef
TARGET_DEVICES += engenius_eap300-v2
@ -1017,8 +1017,8 @@ define Device/engenius_eap600
SOC := ar9344
DEVICE_VENDOR := EnGenius
DEVICE_MODEL := EAP600
IMAGE_SIZE := 12032k
LOADER_FLASH_OFFS := 0x230000
IMAGE_SIZE := 12096k
LOADER_FLASH_OFFS := 0x220000
SENAO_IMGNAME := senao-eap600
endef
TARGET_DEVICES += engenius_eap600
@ -1054,8 +1054,8 @@ define Device/engenius_ecb600
SOC := ar9344
DEVICE_VENDOR := EnGenius
DEVICE_MODEL := ECB600
IMAGE_SIZE := 12032k
LOADER_FLASH_OFFS := 0x230000
IMAGE_SIZE := 12096k
LOADER_FLASH_OFFS := 0x220000
SENAO_IMGNAME := senao-ecb600
endef
TARGET_DEVICES += engenius_ecb600
@ -1067,8 +1067,8 @@ define Device/engenius_ens202ext-v1
DEVICE_MODEL := ENS202EXT
DEVICE_VARIANT := v1
DEVICE_PACKAGES := rssileds
IMAGE_SIZE := 12032k
LOADER_FLASH_OFFS := 0x230000
IMAGE_SIZE := 12096k
LOADER_FLASH_OFFS := 0x220000
SENAO_IMGNAME := senao-ens202ext
endef
TARGET_DEVICES += engenius_ens202ext-v1
@ -1080,8 +1080,8 @@ define Device/engenius_enstationac-v1
DEVICE_MODEL := EnStationAC
DEVICE_VARIANT := v1
DEVICE_PACKAGES := ath10k-firmware-qca988x-ct kmod-ath10k-ct rssileds
IMAGE_SIZE := 11520k
LOADER_FLASH_OFFS := 0x230000
IMAGE_SIZE := 11584k
LOADER_FLASH_OFFS := 0x220000
SENAO_IMGNAME := ar71xx-generic-enstationac
endef
TARGET_DEVICES += engenius_enstationac-v1

12
target/linux/ath79/image/tiny.mk
View File

@ -37,8 +37,8 @@ define Device/engenius_eap350-v1
DEVICE_VENDOR := EnGenius
DEVICE_MODEL := EAP350
DEVICE_VARIANT := v1
IMAGE_SIZE := 4864k
LOADER_FLASH_OFFS := 0x1b0000
IMAGE_SIZE := 4928k
LOADER_FLASH_OFFS := 0x1a0000
SENAO_IMGNAME := senao-eap350
endef
TARGET_DEVICES += engenius_eap350-v1
@ -49,8 +49,8 @@ define Device/engenius_ecb350-v1
DEVICE_VENDOR := EnGenius
DEVICE_MODEL := ECB350
DEVICE_VARIANT := v1
IMAGE_SIZE := 4864k
LOADER_FLASH_OFFS := 0x1b0000
IMAGE_SIZE := 4928k
LOADER_FLASH_OFFS := 0x1a0000
SENAO_IMGNAME := senao-ecb350
endef
TARGET_DEVICES += engenius_ecb350-v1
@ -62,8 +62,8 @@ define Device/engenius_enh202-v1
DEVICE_MODEL := ENH202
DEVICE_VARIANT := v1
DEVICE_PACKAGES := rssileds
IMAGE_SIZE := 4864k
LOADER_FLASH_OFFS := 0x1b0000
IMAGE_SIZE := 4928k
LOADER_FLASH_OFFS := 0x1a0000
SENAO_IMGNAME := senao-enh202
endef
TARGET_DEVICES += engenius_enh202-v1