Fix device detection scripts and logic

This commit is contained in:
topjohnwu
2023-08-28 22:13:24 -07:00
parent b1363ee479
commit 75d905a56d
8 changed files with 58 additions and 57 deletions

View File

@ -279,7 +279,7 @@ mount_ro_ensure() {
}
# After calling this method, the following variables will be set:
# SLOT, SYSTEM_ROOT
# SLOT, SYSTEM_AS_ROOT
mount_partitions() {
# Check A/B slot
SLOT=$(grep_cmdline androidboot.slot_suffix)
@ -297,7 +297,7 @@ mount_partitions() {
fi
mount_ro_ensure "system$SLOT app$SLOT" /system
if [ -f /system/init -o -L /system/init ]; then
SYSTEM_ROOT=true
SYSTEM_AS_ROOT=true
setup_mntpoint /system_root
if ! mount --move /system /system_root; then
umount /system
@ -307,63 +307,68 @@ mount_partitions() {
mount -o bind /system_root/system /system
else
if grep ' / ' /proc/mounts | grep -qv 'rootfs' || grep -q ' /system_root ' /proc/mounts; then
SYSTEM_ROOT=true
SYSTEM_AS_ROOT=true
else
SYSTEM_ROOT=false
SYSTEM_AS_ROOT=false
fi
fi
$SYSTEM_ROOT && ui_print "- Device is system-as-root"
$SYSTEM_AS_ROOT && ui_print "- Device is system-as-root"
}
# After calling this method, the following variables will be set:
# KEEPVERITY, KEEPFORCEENCRYPT, RECOVERYMODE, PATCHVBMETAFLAG,
# ISENCRYPTED, VBMETAEXIST, LEGACYSAR
# ISENCRYPTED, PATCHVBMETAFLAG, LEGACYSAR,
# KEEPVERITY, KEEPFORCEENCRYPT, RECOVERYMODE
get_flags() {
if grep ' /data ' /proc/mounts | grep -q 'dm-'; then
ISENCRYPTED=true
elif [ "$(getprop ro.crypto.state)" = "encrypted" ]; then
ISENCRYPTED=true
elif [ "$DATA" = "false" ]
# No data access means unable to decrypt in recovery
ISENCRYPTED=true
else
ISENCRYPTED=false
fi
if [ -n "$(find_block vbmeta vbmeta_a)" ]; then
PATCHVBMETAFLAG=false
else
PATCHVBMETAFLAG=true
ui_print "- No vbmeta partition, patch vbmeta in boot image"
fi
local IS_DYNAMIC=false
if grep -q 'androidboot.super_partition' /proc/cmdline; then
IS_DYNAMIC=true
elif [ -n "$(find_block super)" ]; then
IS_DYNAMIC=true
fi
if $SYSTEM_AS_ROOT && ! $IS_DYNAMIC; then
LEGACYSAR=true
ui_print "- Legacy SAR, force kernel to load rootfs"
else
LEGACYSAR=false
fi
# Overridable config flags with safe defaults
getvar KEEPVERITY
getvar KEEPFORCEENCRYPT
getvar RECOVERYMODE
getvar PATCHVBMETAFLAG
if [ -z $KEEPVERITY ]; then
if $SYSTEM_ROOT; then
if $SYSTEM_AS_ROOT; then
KEEPVERITY=true
ui_print "- System-as-root, keep dm/avb-verity"
ui_print "- System-as-root, keep dm-verity"
else
KEEPVERITY=false
fi
fi
ISENCRYPTED=false
grep ' /data ' /proc/mounts | grep -q 'dm-' && ISENCRYPTED=true
[ "$(getprop ro.crypto.state)" = "encrypted" ] && ISENCRYPTED=true
if [ -z $KEEPFORCEENCRYPT ]; then
# No data access means unable to decrypt in recovery
if $ISENCRYPTED || ! $DATA; then
if $ISENCRYPTED; then
KEEPFORCEENCRYPT=true
ui_print "- Encrypted data, keep forceencrypt"
else
KEEPFORCEENCRYPT=false
fi
fi
VBMETAEXIST=false
local VBMETAIMG=$(find_block vbmeta vbmeta_a)
[ -n "$VBMETAIMG" ] && VBMETAEXIST=true
if [ -z $PATCHVBMETAFLAG ]; then
if $VBMETAEXIST; then
PATCHVBMETAFLAG=false
else
PATCHVBMETAFLAG=true
ui_print "- No vbmeta partition, patch vbmeta in boot image"
fi
fi
[ -z $RECOVERYMODE ] && RECOVERYMODE=false
local IS_DYNAMIC=false
grep -q 'androidboot.super_partition' /proc/cmdline && IS_DYNAMIC=true
[ -b "/dev/block/by-name/super" ] && IS_DYNAMIC=true
if $SYSTEM_ROOT && ! $IS_DYNAMIC; then
LEGACYSAR=true
ui_print "- legacy SAR, force kernel to load rootfs"
else
LEGACYSAR=false
fi
}
find_boot_image() {