[base-files] make basefiles aware of procd

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36003 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 230 insertions, 0 deletions

diff --git a/package/base-files/files.old/lib/upgrade/common.sh b/package/base-files/files.old/lib/upgrade/common.sh
new file mode 100644
index 000000000..2e123ab3c
--- /dev/null
+++ b/package/base-files/files.old/lib/upgrade/common.sh
@@ -0,0 +1,230 @@
+#!/bin/sh
+
+RAM_ROOT=/tmp/root
+
+ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
+libs() { ldd $* | awk '{print $3}'; }
+
+install_file() { # <file> [ <file> ... ]
+	for file in "$@"; do
+		dest="$RAM_ROOT/$file"
+		[ -f $file -a ! -f $dest ] && {
+			dir="$(dirname $dest)"
+			mkdir -p "$dir"
+			cp $file $dest
+		}
+	done
+}
+
+install_bin() { # <file> [ <symlink> ... ]
+	src=$1
+	files=$1
+	[ -x "$src" ] && files="$src $(libs $src)"
+	install_file $files
+	[ -e /lib/ld-linux.so.3 ] && {
+		install_file /lib/ld-linux.so.3
+	}
+	shift
+	for link in "$@"; do {
+		dest="$RAM_ROOT/$link"
+		dir="$(dirname $dest)"
+		mkdir -p "$dir"
+		[ -f "$dest" ] || ln -s $src $dest
+	}; done
+}
+
+supivot() { # <new_root> <old_root>
+	mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
+	mkdir -p $1$2 $1/proc $1/sys $1/dev $1/tmp $1/overlay && \
+	mount -o noatime,move /proc $1/proc && \
+	pivot_root $1 $1$2 || {
+        umount $1 $1
+		return 1
+	}
+
+	mount -o noatime,move $2/sys /sys
+	mount -o noatime,move $2/dev /dev
+	mount -o noatime,move $2/tmp /tmp
+	mount -o noatime,move $2/overlay /overlay 2>&-
+	return 0
+}
+
+run_ramfs() { # <command> [...]
+	install_bin /bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount        \
+		/sbin/pivot_root /usr/bin/wget /sbin/reboot /bin/sync /bin/dd   \
+		/bin/grep /bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" \
+		/bin/vi /bin/ls /bin/cat /usr/bin/awk /usr/bin/hexdump          \
+		/bin/sleep /bin/zcat /usr/bin/bzcat /usr/bin/printf /usr/bin/wc
+
+	install_bin /sbin/mtd
+	for file in $RAMFS_COPY_BIN; do
+		install_bin $file
+	done
+	install_file /etc/resolv.conf /lib/functions.sh /lib/functions.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
+
+	supivot $RAM_ROOT /mnt || {
+		echo "Failed to switch over to ramfs. Please reboot."
+		exit 1
+	}
+
+	mount -o remount,ro /mnt
+	umount -l /mnt
+
+	grep /overlay /proc/mounts > /dev/null && {
+		mount -o noatime,remount,ro /overlay
+		umount -l /overlay
+	}
+
+	# spawn a new shell from ramdisk to reduce the probability of cache issues
+	exec /bin/busybox ash -c "$*"
+}
+
+kill_remaining() { # [ <signal> ]
+	local sig="${1:-TERM}"
+	echo -n "Sending $sig to remaining processes ... "
+
+	local stat
+	for stat in /proc/[0-9]*/stat; do
+		[ -f "$stat" ] || continue
+
+		local pid name state ppid rest
+		read pid name state ppid rest < $stat
+		name="${name#(}"; name="${name%)}"
+
+		local cmdline
+		read cmdline < /proc/$pid/cmdline
+
+		# Skip kernel threads 
+		[ -n "$cmdline" ] || continue
+
+		case "$name" in
+			# Skip essential services
+			*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*hostapd*|*wpa_supplicant*) : ;;
+
+			# Killable process
+			*)
+				if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
+					echo -n "$name "
+					kill -$sig $pid 2>/dev/null
+				fi
+			;;
+		esac
+	done
+	echo ""
+}
+
+run_hooks() {
+	local arg="$1"; shift
+	for func in "$@"; do
+		eval "$func $arg"
+	done
+}
+
+ask_bool() {
+	local default="$1"; shift;
+	local answer="$default"
+
+	[ "$INTERACTIVE" -eq 1 ] && {
+		case "$default" in
+			0) echo -n "$* (y/N): ";;
+			*) echo -n "$* (Y/n): ";;
+		esac
+		read answer
+		case "$answer" in
+			y*) answer=1;;
+			n*) answer=0;;
+			*) answer="$default";;
+		esac
+	}
+	[ "$answer" -gt 0 ]
+}
+
+v() {
+	[ "$VERBOSE" -ge 1 ] && echo "$@"
+}
+
+rootfs_type() {
+	mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
+}
+
+get_image() { # <source> [ <command> ]
+	local from="$1"
+	local conc="$2"
+	local cmd
+
+	case "$from" in
+		http://*|ftp://*) cmd="wget -O- -q";;
+		*) cmd="cat";;
+	esac
+	if [ -z "$conc" ]; then
+		local magic="$(eval $cmd $from | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
+		case "$magic" in
+			1f8b) conc="zcat";;
+			425a) conc="bzcat";;
+		esac
+	fi
+
+	eval "$cmd $from ${conc:+| $conc}"
+}
+
+get_magic_word() {
+	get_image "$@" | dd bs=2 count=1 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"'
+}
+
+get_magic_long() {
+	get_image "$@" | dd bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
+}
+
+refresh_mtd_partitions() {
+	mtd refresh rootfs
+}
+
+jffs2_copy_config() {
+	if grep rootfs_data /proc/mtd >/dev/null; then
+		# squashfs+jffs2
+		mtd -e rootfs_data jffs2write "$CONF_TAR" rootfs_data
+	else
+		# jffs2
+		mtd jffs2write "$CONF_TAR" rootfs
+	fi
+}
+
+default_do_upgrade() {
+	sync
+	if [ "$SAVE_CONFIG" -eq 1 -a -z "$USE_REFRESH" ]; then
+		get_image "$1" | mtd -j "$CONF_TAR" write - "${PART_NAME:-image}"
+	else
+		get_image "$1" | mtd write - "${PART_NAME:-image}"
+	fi
+}
+
+do_upgrade() {
+	v "Performing system upgrade..."
+	if type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
+		platform_do_upgrade "$ARGV"
+	else
+		default_do_upgrade "$ARGV"
+	fi
+
+	[ "$SAVE_CONFIG" -eq 1 -a -n "$USE_REFRESH" ] && {
+		v "Refreshing partitions"
+		if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
+			platform_refresh_partitions
+		else
+			refresh_mtd_partitions
+		fi
+		if type 'platform_copy_config' >/dev/null 2>/dev/null; then
+			platform_copy_config
+		else
+			jffs2_copy_config
+		fi
+	}
+	v "Upgrade completed"
+	[ -n "$DELAY" ] && sleep "$DELAY"
+	ask_bool 1 "Reboot" && {
+		v "Rebooting system..."
+		reboot -f
+		sleep 5
+		echo b 2>/dev/null >/proc/sysrq-trigger
+	}
+}