make basefiles aware of procd
Signed-off-by: John Crispin <blogic@openwrt.org> SVN-Revision: 36003
This commit is contained in:
John Crispin
230
package/base-files/files.old/lib/upgrade/common.sh
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230
package/base-files/files.old/lib/upgrade/common.sh
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#!/bin/sh
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RAM_ROOT=/tmp/root
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ldd() { LD_TRACE_LOADED_OBJECTS=1 $*; }
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libs() { ldd $* | awk '{print $3}'; }
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install_file() { # <file> [ <file> ... ]
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for file in "$@"; do
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dest="$RAM_ROOT/$file"
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[ -f $file -a ! -f $dest ] && {
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dir="$(dirname $dest)"
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mkdir -p "$dir"
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cp $file $dest
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}
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done
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}
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install_bin() { # <file> [ <symlink> ... ]
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src=$1
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files=$1
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[ -x "$src" ] && files="$src $(libs $src)"
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install_file $files
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[ -e /lib/ld-linux.so.3 ] && {
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install_file /lib/ld-linux.so.3
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}
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shift
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for link in "$@"; do {
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dest="$RAM_ROOT/$link"
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dir="$(dirname $dest)"
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mkdir -p "$dir"
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[ -f "$dest" ] || ln -s $src $dest
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}; done
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}
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supivot() { # <new_root> <old_root>
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mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
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mkdir -p $1$2 $1/proc $1/sys $1/dev $1/tmp $1/overlay && \
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mount -o noatime,move /proc $1/proc && \
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pivot_root $1 $1$2 || {
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umount $1 $1
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return 1
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}
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mount -o noatime,move $2/sys /sys
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mount -o noatime,move $2/dev /dev
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mount -o noatime,move $2/tmp /tmp
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mount -o noatime,move $2/overlay /overlay 2>&-
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return 0
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}
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run_ramfs() { # <command> [...]
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install_bin /bin/busybox /bin/ash /bin/sh /bin/mount /bin/umount \
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/sbin/pivot_root /usr/bin/wget /sbin/reboot /bin/sync /bin/dd \
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/bin/grep /bin/cp /bin/mv /bin/tar /usr/bin/md5sum "/usr/bin/[" \
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/bin/vi /bin/ls /bin/cat /usr/bin/awk /usr/bin/hexdump \
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/bin/sleep /bin/zcat /usr/bin/bzcat /usr/bin/printf /usr/bin/wc
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install_bin /sbin/mtd
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for file in $RAMFS_COPY_BIN; do
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install_bin $file
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done
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install_file /etc/resolv.conf /lib/functions.sh /lib/functions.sh /lib/upgrade/*.sh $RAMFS_COPY_DATA
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supivot $RAM_ROOT /mnt || {
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echo "Failed to switch over to ramfs. Please reboot."
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exit 1
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}
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mount -o remount,ro /mnt
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umount -l /mnt
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grep /overlay /proc/mounts > /dev/null && {
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mount -o noatime,remount,ro /overlay
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umount -l /overlay
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}
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# spawn a new shell from ramdisk to reduce the probability of cache issues
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exec /bin/busybox ash -c "$*"
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}
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kill_remaining() { # [ <signal> ]
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local sig="${1:-TERM}"
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echo -n "Sending $sig to remaining processes ... "
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local stat
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for stat in /proc/[0-9]*/stat; do
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[ -f "$stat" ] || continue
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local pid name state ppid rest
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read pid name state ppid rest < $stat
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name="${name#(}"; name="${name%)}"
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local cmdline
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read cmdline < /proc/$pid/cmdline
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# Skip kernel threads
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[ -n "$cmdline" ] || continue
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case "$name" in
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# Skip essential services
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*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*hostapd*|*wpa_supplicant*) : ;;
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# Killable process
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*)
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if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
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echo -n "$name "
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kill -$sig $pid 2>/dev/null
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fi
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;;
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esac
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done
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echo ""
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}
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run_hooks() {
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local arg="$1"; shift
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for func in "$@"; do
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eval "$func $arg"
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done
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}
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ask_bool() {
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local default="$1"; shift;
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local answer="$default"
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[ "$INTERACTIVE" -eq 1 ] && {
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case "$default" in
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0) echo -n "$* (y/N): ";;
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*) echo -n "$* (Y/n): ";;
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esac
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read answer
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case "$answer" in
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y*) answer=1;;
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n*) answer=0;;
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*) answer="$default";;
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esac
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}
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[ "$answer" -gt 0 ]
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}
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v() {
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[ "$VERBOSE" -ge 1 ] && echo "$@"
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}
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rootfs_type() {
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mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
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}
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get_image() { # <source> [ <command> ]
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local from="$1"
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local conc="$2"
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local cmd
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case "$from" in
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http://*|ftp://*) cmd="wget -O- -q";;
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*) cmd="cat";;
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esac
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if [ -z "$conc" ]; then
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local magic="$(eval $cmd $from | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
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case "$magic" in
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1f8b) conc="zcat";;
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425a) conc="bzcat";;
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esac
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fi
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eval "$cmd $from ${conc:+| $conc}"
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}
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get_magic_word() {
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get_image "$@" | dd bs=2 count=1 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"'
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}
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get_magic_long() {
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get_image "$@" | dd bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
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}
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refresh_mtd_partitions() {
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mtd refresh rootfs
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}
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jffs2_copy_config() {
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if grep rootfs_data /proc/mtd >/dev/null; then
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# squashfs+jffs2
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mtd -e rootfs_data jffs2write "$CONF_TAR" rootfs_data
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else
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# jffs2
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mtd jffs2write "$CONF_TAR" rootfs
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fi
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}
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default_do_upgrade() {
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sync
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if [ "$SAVE_CONFIG" -eq 1 -a -z "$USE_REFRESH" ]; then
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get_image "$1" | mtd -j "$CONF_TAR" write - "${PART_NAME:-image}"
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else
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get_image "$1" | mtd write - "${PART_NAME:-image}"
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fi
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}
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do_upgrade() {
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v "Performing system upgrade..."
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if type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
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platform_do_upgrade "$ARGV"
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else
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default_do_upgrade "$ARGV"
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fi
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[ "$SAVE_CONFIG" -eq 1 -a -n "$USE_REFRESH" ] && {
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v "Refreshing partitions"
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if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
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platform_refresh_partitions
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else
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refresh_mtd_partitions
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fi
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if type 'platform_copy_config' >/dev/null 2>/dev/null; then
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platform_copy_config
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else
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jffs2_copy_config
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fi
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}
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v "Upgrade completed"
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[ -n "$DELAY" ] && sleep "$DELAY"
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ask_bool 1 "Reboot" && {
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v "Rebooting system..."
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reboot -f
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sleep 5
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echo b 2>/dev/null >/proc/sysrq-trigger
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}
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}
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