From f43b7934d2850c2f545736253a0f8cbe4915fdff Mon Sep 17 00:00:00 2001
From: John Crispin <john@openwrt.org>
Date: Wed, 13 Mar 2013 18:11:19 +0000
Subject: make basefiles aware of procd
Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 36003
---
package/base-files/files.old/lib/upgrade/common.sh | 230 +++++++++++++++++++++
1 file changed, 230 insertions(+)
create mode 100644 package/base-files/files.old/lib/upgrade/common.sh
(limited to 'package/base-files/files.old/lib/upgrade')
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 0000000000..2e123ab3cf
--- /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
+ }
+}
--
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