#!/bin/sh
# @Xiaomi crashlog processing script

get_crash_log_mtd() {
	local crashname="$1"
	local destfile="$2"
	local crashmtd="$(grep "\"$crashname\"" /proc/mtd | awk -F: '{print $1}')"

	[ -z "$crashmtd" ] && return 0

	crashmtd="/dev/""$crashmtd"

	#TODO: dd may fail to handle bad blocks on nand.
	crashflag=`dd if="$crashmtd" bs=1 count=4 2>/dev/null | hexdump -e '1/4 "%x"'`
	[ "$crashflag" = "5ab5" ] || return 0

	#TODO: what if there is no crashflag but mtd is not clean either

	# crash exist
	cd /tmp
	if mtd_crash_log -X "$crashmtd"; then
	    if [ -f "panic.message" ]; then
		mv panic.message "$destfile"
	    fi
	fi
	mtd erase "$crashmtd" 2>/dev/null
	return 1

}

get_crash_log() {

	get_crash_log_mtd "crash" "/tmp/crash_logbuf"
	[ "$?" = "0" ] && return 0

	#crash logbuf found. dig out crash syslog
	get_crash_log_mtd "crash_syslog" "/tmp/crash_syslog"

	#check wlan fw bin
	WLAN_FW_LOG=""
	if [ -f "/data/usr/log/WLAN_FW_9984.BIN.1" ]; then
		cp /data/usr/log/WLAN_FW_9984.BIN.1 /tmp/
		mv /data/usr/log/WLAN_FW_9984.BIN.1 /data/usr/log/WLAN_FW_9984.BIN.2
		WLAN_FW_FILE="WLAN_FW_9984.BIN.1"
	fi
	if [ -f "/data/usr/log/WLAN_FW_900B.BIN.1" ]; then
		cp /data/usr/log/WLAN_FW_900B.BIN.1 /tmp/
		mv /data/usr/log/WLAN_FW_900B.BIN.1 /data/usr/log/WLAN_FW_900B.BIN.2
		WLAN_FW_FILE="${WLAN_FW_FILE} WLAN_FW_900B.BIN.1"
	fi
	[ -n "${WLAN_FW_FILE}" ] && WLAN_FW_LOG="wlan_fw_bin.tar.gz" && tar -czf ${WLAN_FW_LOG} ${WLAN_FW_FILE}

	cd /tmp
	if [ -f crash_logbuf -a -f crash_syslog ]; then
		tar -czf panic.tar.gz crash_logbuf crash_syslog ${WLAN_FW_LOG}
		rm -f crash_logbuf crash_syslog
	else
		tar -czf panic.tar.gz crash_logbuf ${WLAN_FW_LOG}
		rm -f crash_logbuf
	fi

	# just overwrite old panic logs
	mv -f /tmp/panic.tar.gz /data/usr/log/panic.tar.gz
}

upload_crash_log() {
	[ -f /data/usr/log/panic.tar.gz ] || return 0

	mtd_crash_log -u /data/usr/log/panic.tar.gz
	if [ "$?" = "0" ]; then
	        logger -p local0.warning -t boot_check "Upload crash done."
		rm -f /data/usr/log/panic.tar.gz
	else
	        logger -p local0.warning -t boot_check "Upload crash failed."
	fi
}

tmpft=`cat /proc/xiaoqiang/ft_mode`
[ "$tmpft" = "1" ] && return 0

get_crash_log

upload_crash_log