[package] base-files: do not kill udhcpc on sysupgrade, it will tear down the interfa...

[openwrt.git] / package / base-files / files / lib / upgrade / common.sh

diff --git a/package/base-files/files/lib/upgrade/common.sh b/package/base-files/files/lib/upgrade/common.sh
index ef7ce57..0870f7d 100644 (file)
--- a/package/base-files/files/lib/upgrade/common.sh
+++ b/package/base-files/files/lib/upgrade/common.sh
@@ -21,6 +21,9 @@ install_bin() { # <file> [ <symlink> ... ]
        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"
@@ -32,7 +35,7 @@ install_bin() { # <file> [ <symlink> ... ]
 
 pivot() { # <new_root> <old_root>
        mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
-       mkdir -p $1$2 $1/proc $1/dev $1/tmp $1/jffs && \
+       mkdir -p $1$2 $1/proc $1/dev $1/tmp $1/overlay && \
        mount -o move /proc $1/proc && \
        pivot_root $1 $1$2 || {
         umount $1 $1
@@ -40,12 +43,17 @@ pivot() { # <new_root> <old_root>
        }
        mount -o move $2/dev /dev
        mount -o move $2/tmp /tmp
-       mount -o move $2/jffs /jffs 2>&-
+       mount -o 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
+       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
@@ -60,15 +68,39 @@ run_ramfs() { # <command> [...]
        mount -o remount,ro /mnt
        umount -l /mnt
 
-       grep /jffs /proc/mounts > /dev/null && {
-               mount -o remount,ro /jffs
-               umount -l /jffs
+       grep /overlay /proc/mounts > /dev/null && {
+               mount -o 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 $sig to remaining processes ... "
+       /bin/busybox top -bn1 2>/dev/null | while read pid ppid user stat vsz pvsz pcpu cmd args; do
+               case "$pid" in
+                       [0-9]*) : ;;
+                       *) continue ;;
+               esac
+               case "$cmd" in
+                       # Skip kernel threads and essential services
+                       \[*\]|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*ubusd*|*netifd*|*hostapd*|*wpa_supplicant*|*udhcpc*) : ;;
+
+                       # Killable process
+                       *)
+                               if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
+                                       echo -n "${cmd##*/} "
+                                       kill -$sig $pid 2>/dev/null
+                               fi
+                       ;;
+               esac
+       done
+       echo ""
+}
+
 run_hooks() {
        local arg="$1"; shift
        for func in "$@"; do
@@ -103,20 +135,32 @@ rootfs_type() {
        mount | awk '($3 ~ /^\/$/) && ($5 !~ /rootfs/) { print $5 }'
 }
 
-get_image() {
+get_image() { # <source> [ <command> ]
        local from="$1"
-       local conc="cat"
-
-       [ "$GZIPED" -eq 1 ] && conc="zcat"
+       local conc="$2"
+       local cmd
 
        case "$from" in
-               http://*|ftp://*) wget -O- -q "$from" | "$conc";;
-               *) cat "$from" | "$conc";;
+               http://*|ftp://*) cmd="wget -O- -q";;
+               *) cmd="cat";;
        esac
+       if [ -z "$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 "$1" | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"'
+       get_image "$@" | 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() {
@@ -134,12 +178,12 @@ jffs2_copy_config() {
 }
 
 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
-       sync
 }
 
 do_upgrade() {
@@ -149,7 +193,7 @@ do_upgrade() {
        else
                default_do_upgrade "$ARGV"
        fi
-       
+
        [ "$SAVE_CONFIG" -eq 1 -a -n "$USE_REFRESH" ] && {
                v "Refreshing partitions"
                if type 'platform_refresh_partitions' >/dev/null 2>/dev/null; then
@@ -167,7 +211,8 @@ do_upgrade() {
        [ -n "$DELAY" ] && sleep "$DELAY"
        ask_bool 1 "Reboot" && {
                v "Rebooting system..."
+               reboot -f
+               sleep 5
                echo b 2>/dev/null >/proc/sysrq-trigger
-               reboot
        }
 }