485 lines
14 KiB
Bash
485 lines
14 KiB
Bash
#! /system/bin/sh
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#
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# Warning: if you want to run this script in cm-recovery change the above to #!/sbin/sh
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#
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# fix_permissions - fixes permissions on Android data directories after upgrade
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# shade@chemlab.org
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#
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# original concept: http://blog.elsdoerfer.name/2009/05/25/android-fix-package-uid-mismatches/
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# implementation by: Cyanogen
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# improved by: ankn, smeat, thenefield, farmatito, rikupw, Kastro
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#
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# v1.1-v1.31r3 - many improvements and concepts from XDA developers.
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# v1.34 through v2.00 - A lot of frustration [by Kastro]
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# v2.01 - Completely rewrote the script for SPEED, thanks for the input farmatito
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# /data/data depth recursion is tweaked;
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# fixed single mode;
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# functions created for modularity;
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# logging can be disabled via CLI for more speed;
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# runtime computation added to end (Runtime: mins secs);
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# progress (current # of total) added to screen;
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# fixed CLI argument parsing, now you can have more than one option!;
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# debug cli option;
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# verbosity can be disabled via CLI option for less noise;;
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# [by Kastro, (XDA: k4str0), twitter;mattcarver]
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# v2.02 - ignore com.htc.resources.apk if it exists and minor code cleanups,
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# fix help text, implement simulated run (-s) [farmatito]
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# v2.03 - fixed chown group ownership output [Kastro]
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# v2.04 - replaced /system/sd with $SD_EXT_DIRECTORY [Firerat]
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VERSION="2.04"
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# Defaults
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DEBUG=0 # Debug off by default
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LOGGING=1 # Logging on by default
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VERBOSE=1 # Verbose on by default
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# Messages
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UID_MSG="Changing user ownership for:"
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GID_MSG="Changing group ownership for:"
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PERM_MSG="Changing permissions for:"
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# Programs needed
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ECHO="busybox echo"
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GREP="busybox grep"
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EGREP="busybox egrep"
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CAT="busybox cat"
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CHOWN="busybox chown"
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CHMOD="busybox chmod"
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MOUNT="busybox mount"
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UMOUNT="busybox umount"
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CUT="busybox cut"
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FIND="busybox find"
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LS="busybox ls"
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TR="busybox tr"
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TEE="busybox tee"
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TEST="busybox test"
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SED="busybox sed"
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RM="busybox rm"
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WC="busybox wc"
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EXPR="busybox expr"
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DATE="busybox date"
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# Initialise vars
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CODEPATH=""
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UID=""
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GID=""
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PACKAGE=""
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REMOVE=0
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NOSYSTEM=0
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ONLY_ONE=""
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SIMULATE=0
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SYSREMOUNT=0
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SYSMOUNT=0
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DATAMOUNT=0
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SYSSDMOUNT=0
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FP_STARTTIME=$( $DATE +"%m-%d-%Y %H:%M:%S" )
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FP_STARTEPOCH=$( $DATE +%s )
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if $TEST "$SD_EXT_DIRECTORY" = ""; then
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#check for mount point, /system/sd included in tests for backward compatibility
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for MP in /sd-ext /system/sd;do
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if $TEST -d $MP; then
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SD_EXT_DIRECTORY=$MP
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break
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fi
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done
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fi
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fp_usage()
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{
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$ECHO "Usage $0 [OPTIONS] [APK_PATH]"
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$ECHO " -d turn on debug"
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$ECHO " -f fix only package APK_PATH"
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$ECHO " -l disable logging for this run (faster)"
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$ECHO " -r remove stale data directories"
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$ECHO " of uninstalled packages while fixing permissions"
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$ECHO " -s simulate only"
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$ECHO " -u check only non-system directories"
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$ECHO " -v disable verbosity for this run (less output)"
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$ECHO " -V print version"
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$ECHO " -h this help"
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}
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fp_parseargs()
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{
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# Parse options
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while $TEST $# -ne 0; do
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case "$1" in
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-d)
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DEBUG=1
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;;
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-f)
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if $TEST $# -lt 2; then
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$ECHO "$0: missing argument for option $1"
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exit 1
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else
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if $TEST $( $ECHO $2 | $CUT -c1 ) != "-"; then
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ONLY_ONE=$2
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shift;
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else
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$ECHO "$0: missing argument for option $1"
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exit 1
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fi
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fi
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;;
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-r)
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REMOVE=1
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;;
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-s)
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SIMULATE=1
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;;
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-l)
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if $TEST $LOGGING -eq 0; then
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LOGGING=1
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else
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LOGGING=0
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fi
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;;
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-v)
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if $TEST $VERBOSE -eq 0; then
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VERBOSE=1
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else
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VERBOSE=0
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fi
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;;
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-u)
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NOSYSTEM=1
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;;
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-V)
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$ECHO "$0 $VERSION"
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exit 0
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;;
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-h)
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fp_usage
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exit 0
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;;
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-*)
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$ECHO "$0: unknown option $1"
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$ECHO
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fp_usage
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exit 1
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;;
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esac
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shift;
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done
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}
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fp_print()
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{
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MSG=$@
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if $TEST $LOGGING -eq 1; then
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$ECHO $MSG | $TEE -a $LOG_FILE
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else
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$ECHO $MSG
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fi
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}
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fp_start()
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{
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if $TEST $SIMULATE -eq 0 ; then
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if $TEST $( $GREP -c " /system " "/proc/mounts" ) -ne 0; then
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DEVICE=$( $GREP " /system " "/proc/mounts" | $CUT -d ' ' -f1 )
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if $TEST $DEBUG -eq 1; then
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fp_print "/system mounted on $DEVICE"
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fi
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if $TEST $( $GREP " /system " "/proc/mounts" | $GREP -c " ro " ) -ne 0; then
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$MOUNT -o remount,rw $DEVICE /system
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SYSREMOUNT=1
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fi
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else
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$MOUNT /system > /dev/null 2>&1
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SYSMOUNT=1
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fi
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if $TEST $( $GREP -c " /data " "/proc/mounts" ) -eq 0; then
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$MOUNT /data > /dev/null 2>&1
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DATAMOUNT=1
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fi
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if $TEST -e /dev/block/mmcblk0p2 && $TEST $( $GREP -c " $SD_EXT_DIRECTORY " "/proc/mounts" ) -eq 0; then
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$MOUNT $SD_EXT_DIRECTORY > /dev/null 2>&1
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SYSSDMOUNT=1
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fi
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fi
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if $TEST $( $MOUNT | $GREP -c /sdcard ) -eq 0; then
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LOG_FILE="/data/fix_permissions.log"
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else
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LOG_FILE="/sdcard/fix_permissions.log"
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fi
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if $TEST ! -e "$LOG_FILE"; then
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> $LOG_FILE
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fi
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fp_print "$0 $VERSION started at $FP_STARTTIME"
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}
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fp_chown_uid()
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{
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FP_OLDUID=$1
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FP_UID=$2
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FP_FILE=$3
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#if user ownership doesn't equal then change them
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if $TEST "$FP_OLDUID" != "$FP_UID"; then
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if $TEST $VERBOSE -ne 0; then
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fp_print "$UID_MSG $FP_FILE from '$FP_OLDUID' to '$FP_UID'"
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fi
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if $TEST $SIMULATE -eq 0; then
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$CHOWN $FP_UID "$FP_FILE"
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fi
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fi
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}
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fp_chown_gid()
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{
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FP_OLDGID=$1
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FP_GID=$2
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FP_FILE=$3
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#if group ownership doesn't equal then change them
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if $TEST "$FP_OLDGID" != "$FP_GID"; then
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if $TEST $VERBOSE -ne 0; then
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fp_print "$GID_MSG $FP_FILE from '$FP_OLDGID' to '$FP_GID'"
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fi
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if $TEST $SIMULATE -eq 0; then
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$CHOWN :$FP_GID "$FP_FILE"
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fi
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fi
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}
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fp_chmod()
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{
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FP_OLDPER=$1
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FP_OLDPER=$( $ECHO $FP_OLDPER | cut -c2-10 )
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FP_PERSTR=$2
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FP_PERNUM=$3
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FP_FILE=$4
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#if the permissions are not equal
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if $TEST "$FP_OLDPER" != "$FP_PERSTR"; then
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if $TEST $VERBOSE -ne 0; then
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fp_print "$PERM_MSG $FP_FILE from '$FP_OLDPER' to '$FP_PERSTR' ($FP_PERNUM)"
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fi
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#change the permissions
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if $TEST $SIMULATE -eq 0; then
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$CHMOD $FP_PERNUM "$FP_FILE"
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fi
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fi
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}
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fp_all()
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{
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FP_NUMS=$( $CAT /data/system/packages.xml | $EGREP "^<package.*serId" | $GREP -v framework-res.apk | $GREP -v com.htc.resources.apk | $WC -l )
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I=0
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$CAT /data/system/packages.xml | $EGREP "^<package.*serId" | $GREP -v framework-res.apk | $GREP -v com.htc.resources.apk | while read all_line; do
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I=$( $EXPR $I + 1 )
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fp_package "$all_line" $I $FP_NUMS
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done
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}
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fp_single()
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{
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FP_SFOUND=$( $CAT /data/system/packages.xml | $EGREP "^<package.*serId" | $GREP -v framework-res.apk | $GREP -v com.htc.resources.apk | $GREP -i $ONLY_ONE | wc -l )
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if $TEST $FP_SFOUND -gt 1; then
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fp_print "Cannot perform single operation on $FP_SFOUND matched package(s)."
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elif $TEST $FP_SFOUND = "" -o $FP_SFOUND -eq 0; then
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fp_print "Could not find the package you specified in the packages.xml file."
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else
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FP_SPKG=$( $CAT /data/system/packages.xml | $EGREP "^<package.*serId" | $GREP -v framework-res.apk | $GREP -v com.htc.resources.apk | $GREP -i $ONLY_ONE )
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fp_package "${FP_SPKG}" 1 1
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fi
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}
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fp_package()
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{
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pkgline=$1
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curnum=$2
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endnum=$3
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CODEPATH=$( $ECHO $pkgline | $SED 's%.* codePath="\(.*\)".*%\1%' | $CUT -d '"' -f1 )
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PACKAGE=$( $ECHO $pkgline | $SED 's%.* name="\(.*\)".*%\1%' | $CUT -d '"' -f1 )
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UID=$( $ECHO $pkgline | $SED 's%.*serId="\(.*\)".*%\1%' | $CUT -d '"' -f1 )
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GID=$UID
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APPDIR=$( $ECHO $CODEPATH | $SED 's%^\(.*\)/.*%\1%' )
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APK=$( $ECHO $CODEPATH | $SED 's%^.*/\(.*\..*\)$%\1%' )
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#debug
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if $TEST $DEBUG -eq 1; then
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fp_print "CODEPATH: $CODEPATH APPDIR: $APPDIR APK:$APK UID/GID:$UID:$GID"
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fi
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#check for existence of apk
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if $TEST -e $CODEPATH; then
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fp_print "Processing ($curnum of $endnum): $PACKAGE..."
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#lets get existing permissions of CODEPATH
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OLD_UGD=$( $LS -ln "$CODEPATH" )
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OLD_PER=$( $ECHO $OLD_UGD | $CUT -d ' ' -f1 )
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OLD_UID=$( $ECHO $OLD_UGD | $CUT -d ' ' -f3 )
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OLD_GID=$( $ECHO $OLD_UGD | $CUT -d ' ' -f4 )
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#apk source dirs
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if $TEST "$APPDIR" = "/system/app"; then
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#skip system apps if set
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if $TEST "$NOSYSTEM" = "1"; then
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fp_print "***SKIPPING SYSTEM APP ($PACKAGE)!"
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return
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fi
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fp_chown_uid $OLD_UID 0 "$CODEPATH"
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fp_chown_gid $OLD_GID 0 "$CODEPATH"
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fp_chmod $OLD_PER "rw-r--r--" 644 "$CODEPATH"
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elif $TEST "$APPDIR" = "/data/app" || $TEST "$APPDIR" = "/sd-ext/app"; then
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fp_chown_uid $OLD_UID 1000 "$CODEPATH"
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fp_chown_gid $OLD_GID 1000 "$CODEPATH"
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fp_chmod $OLD_PER "rw-r--r--" 644 "$CODEPATH"
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elif $TEST "$APPDIR" = "/data/app-private" || $TEST "$APPDIR" = "/sd-ext/app-private"; then
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fp_chown_uid $OLD_UID 1000 "$CODEPATH"
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fp_chown_gid $OLD_GID $GID "$CODEPATH"
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fp_chmod $OLD_PER "rw-r-----" 640 "$CODEPATH"
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fi
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else
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fp_print "$CODEPATH does not exist ($curnum of $endnum). Reinstall..."
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if $TEST $REMOVE -eq 1; then
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if $TEST -d /data/data/$PACKAGE ; then
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fp_print "Removing stale dir /data/data/$PACKAGE"
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if $TEST $SIMULATE -eq 0 ; then
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$RM -R /data/data/$PACKAGE
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fi
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fi
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fi
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fi
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#the data/data for the package
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if $TEST -d "/data/data/$PACKAGE"; then
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#find all directories in /data/data/$PACKAGE
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$FIND /data/data/$PACKAGE -type d -exec $LS -ldn {} \; | while read dataline; do
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#get existing permissions of that directory
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OLD_PER=$( $ECHO $dataline | $CUT -d ' ' -f1 )
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OLD_UID=$( $ECHO $dataline | $CUT -d ' ' -f3 )
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OLD_GID=$( $ECHO $dataline | $CUT -d ' ' -f4 )
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FILEDIR=$( $ECHO $dataline | $CUT -d ' ' -f9 )
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FOURDIR=$( $ECHO $FILEDIR | $CUT -d '/' -f5 )
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#set defaults for iteration
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ISLIB=0
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REVPERM=755
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REVPSTR="rwxr-xr-x"
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REVUID=$UID
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REVGID=$GID
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if $TEST "$FOURDIR" = ""; then
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#package directory, perms:755 owner:$UID:$GID
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fp_chmod $OLD_PER "rwxr-xr-x" 755 "$FILEDIR"
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elif $TEST "$FOURDIR" = "lib"; then
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#lib directory, perms:755 owner:1000:1000
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#lib files, perms:755 owner:1000:1000
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ISLIB=1
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REVPERM=755
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REVPSTR="rwxr-xr-x"
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REVUID=1000
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REVGID=1000
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fp_chmod $OLD_PER "rwxr-xr-x" 755 "$FILEDIR"
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elif $TEST "$FOURDIR" = "shared_prefs"; then
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#shared_prefs directories, perms:771 owner:$UID:$GID
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#shared_prefs files, perms:660 owner:$UID:$GID
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REVPERM=660
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REVPSTR="rw-rw----"
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fp_chmod $OLD_PER "rwxrwx--x" 771 "$FILEDIR"
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elif $TEST "$FOURDIR" = "databases"; then
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#databases directories, perms:771 owner:$UID:$GID
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#databases files, perms:660 owner:$UID:$GID
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REVPERM=660
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REVPSTR="rw-rw----"
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fp_chmod $OLD_PER "rwxrwx--x" 771 "$FILEDIR"
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elif $TEST "$FOURDIR" = "cache"; then
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#cache directories, perms:771 owner:$UID:$GID
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#cache files, perms:600 owner:$UID:GID
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REVPERM=600
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REVPSTR="rw-------"
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fp_chmod $OLD_PER "rwxrwx--x" 771 "$FILEDIR"
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else
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#other directories, perms:771 owner:$UID:$GID
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REVPERM=771
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REVPSTR="rwxrwx--x"
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fp_chmod $OLD_PER "rwxrwx--x" 771 "$FILEDIR"
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fi
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#change ownership of directories matched
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if $TEST "$ISLIB" = "1"; then
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fp_chown_uid $OLD_UID 1000 "$FILEDIR"
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fp_chown_gid $OLD_GID 1000 "$FILEDIR"
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else
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fp_chown_uid $OLD_UID $UID "$FILEDIR"
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fp_chown_gid $OLD_GID $GID "$FILEDIR"
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fi
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#if any files exist in directory with improper permissions reset them
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$FIND $FILEDIR -type f -maxdepth 1 ! -perm $REVPERM -exec $LS -ln {} \; | while read subline; do
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OLD_PER=$( $ECHO $subline | $CUT -d ' ' -f1 )
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SUBFILE=$( $ECHO $subline | $CUT -d ' ' -f9 )
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fp_chmod $OLD_PER $REVPSTR $REVPERM "$SUBFILE"
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done
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#if any files exist in directory with improper user reset them
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$FIND $FILEDIR -type f -maxdepth 1 ! -user $REVUID -exec $LS -ln {} \; | while read subline; do
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OLD_UID=$( $ECHO $subline | $CUT -d ' ' -f3 )
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SUBFILE=$( $ECHO $subline | $CUT -d ' ' -f9 )
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fp_chown_uid $OLD_UID $REVUID "$SUBFILE"
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done
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#if any files exist in directory with improper group reset them
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$FIND $FILEDIR -type f -maxdepth 1 ! -group $REVGID -exec $LS -ln {} \; | while read subline; do
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OLD_GID=$( $ECHO $subline | $CUT -d ' ' -f4 )
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SUBFILE=$( $ECHO $subline | $CUT -d ' ' -f9 )
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fp_chown_gid $OLD_GID $REVGID "$SUBFILE"
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done
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done
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fi
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}
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date_diff()
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{
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if $TEST $# -ne 2; then
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FP_DDM="E"
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FP_DDS="E"
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return
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fi
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FP_DDD=$( $EXPR $2 - $1 )
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FP_DDM=$( $EXPR $FP_DDD / 60 )
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FP_DDS=$( $EXPR $FP_DDD % 60 )
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}
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fp_end()
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{
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if $TEST $SYSREMOUNT -eq 1; then
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$MOUNT -o remount,ro $DEVICE /system > /dev/null 2>&1
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fi
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if $TEST $SYSSDMOUNT -eq 1; then
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$UMOUNT $SD_EXT_DIRECTORY > /dev/null 2>&1
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fi
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if $TEST $SYSMOUNT -eq 1; then
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$UMOUNT /system > /dev/null 2>&1
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fi
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if $TEST $DATAMOUNT -eq 1; then
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$UMOUNT /data > /dev/null 2>&1
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fi
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FP_ENDTIME=$( $DATE +"%m-%d-%Y %H:%M:%S" )
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FP_ENDEPOCH=$( $DATE +%s )
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date_diff $FP_STARTEPOCH $FP_ENDEPOCH
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fp_print "$0 $VERSION ended at $FP_ENDTIME (Runtime:${FP_DDM}m${FP_DDS}s)"
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}
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|
|
|
#MAIN SCRIPT
|
|
|
|
fp_parseargs $@
|
|
fp_start
|
|
if $TEST "$ONLY_ONE" != "" -a "$ONLY_ONE" != "0" ; then
|
|
fp_single "$ONLY_ONE"
|
|
else
|
|
fp_all
|
|
fi
|
|
fp_end
|