add an option to spoof verified mode in cros

bootloader/bin/bootstrap.sh

@@ -243,8 +243,16 @@ get_donor_selection() {
 
     if [ "$selection" = "$i" ]; then
       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
 
     i=$((i+1))
@@ -272,6 +280,7 @@ boot_target() {
 boot_chromeos() {
   local target="$1"
   local donor="$2"
+  local use_crossystem="$3"
 
   echo "mounting target"
   mkdir /newroot
@@ -305,6 +314,13 @@ boot_chromeos() {
   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
   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"
   move_mounts /newroot

bootloader/opt/crossystem

@@ -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