add an option to spoof verified mode in cros

This commit is contained in:
ading2210 2023-11-10 17:26:16 -08:00
parent 2b398f762d
commit 9064700b0f
2 changed files with 99 additions and 2 deletions

View File

@ -243,8 +243,16 @@ get_donor_selection() {
if [ "$selection" = "$i" ]; then if [ "$selection" = "$i" ]; then
echo "selected $part_path as the donor partition" echo "selected $part_path as the donor partition"
boot_chromeos $target $part_path read -p "would you like to spoof verfied mode? this is useful if you're planning on using chrome os while enrolled. (y/n): " use_crossystem
return 0
if [ "$use_crossystem" = "y" ] || [ "$use_crossystem" = "n" ]; then
boot_chromeos $target $part_path $use_crossystem
return 0
else
echo "invalid selection"
sleep 1
return 1
fi
fi fi
i=$((i+1)) i=$((i+1))
@ -272,6 +280,7 @@ boot_target() {
boot_chromeos() { boot_chromeos() {
local target="$1" local target="$1"
local donor="$2" local donor="$2"
local use_crossystem="$3"
echo "mounting target" echo "mounting target"
mkdir /newroot mkdir /newroot
@ -305,6 +314,13 @@ boot_chromeos() {
echo "patching chrome os rootfs" echo "patching chrome os rootfs"
cat /newroot/etc/ui_use_flags.txt | sed "/reven_branding/d" | sed "/os_install_service/d" > /newroot/tmp/ui_use_flags.txt cat /newroot/etc/ui_use_flags.txt | sed "/reven_branding/d" | sed "/os_install_service/d" > /newroot/tmp/ui_use_flags.txt
mount -o bind /newroot/tmp/ui_use_flags.txt /newroot/etc/ui_use_flags.txt mount -o bind /newroot/tmp/ui_use_flags.txt /newroot/etc/ui_use_flags.txt
if [ "$use_crossystem" = "y" ]; then
echo "patching crossystem"
cp /opt/crossystem /newroot/tmp/crossystem
cp /newroot/usr/bin/crossystem /newroot/tmp/crossystem_old
mount -o bind /newroot/tmp/crossystem /newroot/usr/bin/crossystem
fi
echo "moving mounts" echo "moving mounts"
move_mounts /newroot move_mounts /newroot

81
bootloader/opt/crossystem Executable file
View File

@ -0,0 +1,81 @@
#!/bin/bash
#a much cleaner implemenation of fakemurk's crossystem.sh
crossystem_old=/tmp/crossystem_old
crossystem_dict="cros_debug 0
dev_boot_legacy 0
dev_boot_signed_only 1
dev_boot_usb 0
devsw_boot 0
devsw_cur 0
block_devmode 1
mainfw_act A
mainfw_type normal
recovery_reason 0
recovery_request 0
recoverysw_boot 0
recoverysw_cur 0"
dict_set() {
local newline=$'\n'
crossystem_dict="$crossystem_dict$newline$1 $2"
}
dict_get() {
echo "$crossystem_dict" | grep "^$1 " | cut -d " " -f 2-
}
parse_arg() {
local arg="$1"
#set values mode - pass this through without changes
if [[ "$arg" =~ "=" ]]; then
$crossystem_old "$@"
#search value mode
elif [[ "$arg" =~ "?" ]]; then
key=$(echo $arg | cut -d "?" -f 1)
query=$(echo $arg | cut -d "?" -f 2)
if ! [ "$(dict_get $key)" = "$query" ]; then
exit 1
fi
#get value mode
elif [ "$(dict_get $arg)" ]; then
printf "$(dict_get $arg)"
#value not found - print help and exit
else
$crossystem_old --help
exit 1
fi
}
crossystem_out="$($crossystem_old)"
#crossystem_out=$(cat data/crossystem.txt)
#add crossystem output to the dict
while IFS= read -r line; do
line=$(echo $line | cut -d "#" -f 1)
key=$(echo $line | cut -d "=" -f 1 | xargs)
value=$(echo $line | cut -d "=" -f 2 | xargs)
if [ -z "$(dict_get $key)" ]; then
dict_set "$key" "$value"
fi
done <<< "$crossystem_out"
#crossystem called with no arguments, print out all properties
if [ -z "$1" ] || [ "$1" = "--all" ]; then
while IFS= read -r line; do
key=$(echo $line | cut -d " " -f 1)
value=$(echo $line | cut -d " " -f 2-)
echo "$key = $value"
done <<< "$crossystem_dict"
exit 0
fi
for arg in "$@"; do
parse_arg $arg
done