base-files: always use staged sysupgrade
Support for the -d and -p options is dropped; it may be added again at some point by adding these flags to the ubus sysupgrade call. A downside of this is that we get a lot less information about the progress of the upgrade: as soon as the actual upgrade starts, all shell sessions are killed to allow unmounting the root filesystem. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This commit is contained in:
Matthias Schiffer
parent
393817df5d
commit
30f61a34b4
4 changed files with 157 additions and 143 deletions
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@ -56,7 +56,6 @@ run_ramfs() { # <command> [...]
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/bin/rm /usr/bin/basename /bin/kill /bin/chmod /usr/bin/find \
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/bin/mknod
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install_bin /bin/uclient-fetch /bin/wget
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install_bin /sbin/mtd
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install_bin /sbin/mount_root
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install_bin /sbin/snapshot
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@ -96,51 +95,37 @@ run_ramfs() { # <command> [...]
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exec /bin/busybox ash -c "$*"
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}
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kill_remaining() { # [ <signal> ]
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kill_remaining() { # [ <signal> [ <loop> ] ]
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local sig="${1:-TERM}"
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local loop="${2:-0}"
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local run=true
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local stat
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echo -n "Sending $sig to remaining processes ... "
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local my_pid=$$
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local my_ppid=$(cut -d' ' -f4 /proc/$my_pid/stat)
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local my_ppisupgraded=
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grep -q upgraded /proc/$my_ppid/cmdline >/dev/null && {
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local my_ppisupgraded=1
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}
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local stat
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for stat in /proc/[0-9]*/stat; do
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[ -f "$stat" ] || continue
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while $run; do
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run=false
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for stat in /proc/[0-9]*/stat; do
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[ -f "$stat" ] || continue
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local pid name state ppid rest
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read pid name state ppid rest < $stat
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name="${name#(}"; name="${name%)}"
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local pid name state ppid rest
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read pid name state ppid rest < $stat
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name="${name#(}"; name="${name%)}"
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local cmdline
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read cmdline < /proc/$pid/cmdline
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# Skip PID1, ourself and our children
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[ $pid -ne 1 -a $pid -ne $$ -a $ppid -ne $$ ] || continue
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# Skip kernel threads
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[ -n "$cmdline" ] || continue
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local cmdline
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read cmdline < /proc/$pid/cmdline
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if [ $$ -eq 1 ] || [ $my_ppid -eq 1 ] && [ -n "$my_ppisupgraded" ]; then
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# Running as init process, kill everything except me
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if [ $pid -ne $$ ] && [ $pid -ne $my_ppid ]; then
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echo -n "$name "
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kill -$sig $pid 2>/dev/null
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fi
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else
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case "$name" in
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# Skip essential services
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*procd*|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*hostapd*|*wpa_supplicant*|*nas*|*relayd*) : ;;
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# Skip kernel threads
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[ -n "$cmdline" ] || continue
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# Killable process
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*)
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if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
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echo -n "$name "
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kill -$sig $pid 2>/dev/null
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fi
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;;
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esac
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fi
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echo -n "$name "
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kill -$sig $pid 2>/dev/null
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[ $loop -eq 1 ] && run=true
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done
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done
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echo ""
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}
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@ -175,28 +160,31 @@ v() {
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[ "$VERBOSE" -ge 1 ] && echo "$@"
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}
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json_string() {
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local v="$1"
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v="${v//\\/\\\\}"
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v="${v//\"/\\\"}"
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echo "\"$v\""
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}
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rootfs_type() {
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/bin/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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local cat="$2"
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case "$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\" 2>/dev/null | dd bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
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if [ -z "$cat" ]; then
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local magic="$(dd if="$from" bs=2 count=1 2>/dev/null | hexdump -n 2 -e '1/1 "%02x"')"
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case "$magic" in
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1f8b) conc="zcat";;
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425a) conc="bzcat";;
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1f8b) cat="zcat";;
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425a) cat="bzcat";;
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*) cat="cat";;
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esac
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fi
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eval "$cmd \"$from\" 2>/dev/null ${conc:+| $conc}"
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$cat "$from" 2>/dev/null
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}
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get_magic_word() {
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@ -320,12 +308,14 @@ default_do_upgrade() {
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fi
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}
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do_upgrade() {
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do_upgrade_stage2() {
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v "Performing system upgrade..."
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if type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
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platform_do_upgrade "$ARGV"
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if [ -n "$do_upgrade" ]; then
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$do_upgrade "$IMAGE"
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elif type 'platform_do_upgrade' >/dev/null 2>/dev/null; then
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platform_do_upgrade "$IMAGE"
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else
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default_do_upgrade "$ARGV"
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default_do_upgrade "$IMAGE"
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fi
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if [ "$SAVE_CONFIG" -eq 1 ] && type 'platform_copy_config' >/dev/null 2>/dev/null; then
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@ -333,12 +323,11 @@ do_upgrade() {
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fi
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v "Upgrade completed"
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[ -n "$DELAY" ] && sleep "$DELAY"
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ask_bool 1 "Reboot" && {
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v "Rebooting system..."
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umount -a
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reboot -f
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sleep 5
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echo b 2>/dev/null >/proc/sysrq-trigger
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}
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sleep 1
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v "Rebooting system..."
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umount -a
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reboot -f
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sleep 5
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echo b 2>/dev/null >/proc/sysrq-trigger
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}
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@ -283,7 +283,16 @@ nand_upgrade_tar() {
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}
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# Recognize type of passed file and start the upgrade process
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nand_do_upgrade_stage2() {
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nand_do_upgrade() {
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if [ -n "$IS_PRE_UPGRADE" ]; then
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# Previously, nand_do_upgrade was called from the platform_pre_upgrade
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# hook; this piece of code handles scripts that haven't been
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# updated. All scripts should gradually move to call nand_do_upgrade
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# from platform_do_upgrade instead.
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export do_upgrade=nand_do_upgrade
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return
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fi
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local file_type=$(identify $1)
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if type 'platform_nand_pre_upgrade' >/dev/null 2>/dev/null; then
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@ -299,45 +308,6 @@ nand_do_upgrade_stage2() {
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esac
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}
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nand_upgrade_stage2() {
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[ $1 = "nand" ] && {
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[ -f "$2" ] && {
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touch /tmp/sysupgrade
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killall -9 telnetd
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killall -9 dropbear
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killall -9 ash
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kill_remaining TERM
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sleep 3
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kill_remaining KILL
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sleep 1
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if [ -n "$(rootfs_type)" ]; then
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v "Switching to ramdisk..."
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run_ramfs ". /lib/functions.sh; include /lib/upgrade; nand_do_upgrade_stage2 $2"
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else
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nand_do_upgrade_stage2 $2
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fi
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return 0
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}
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echo "Nand upgrade failed"
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exit 1
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}
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}
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nand_upgrade_stage1() {
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[ -f /tmp/sysupgrade-nand-path ] && {
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path="$(cat /tmp/sysupgrade-nand-path)"
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[ "$SAVE_CONFIG" != 1 -a -f "$CONF_TAR" ] &&
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rm $CONF_TAR
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ubus call system nandupgrade "{\"prefix\": \"$RAM_ROOT\", \"path\": \"$path\" }"
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exit 0
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}
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}
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# Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
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# 3 types of files:
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# 1) UBI - should contain an ubinized image, header is checked for the proper
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@ -364,13 +334,3 @@ nand_do_platform_check() {
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return 0
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}
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# Start NAND upgrade process
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#
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# $(1): file to be used for upgrade
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nand_do_upgrade() {
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echo -n $1 > /tmp/sysupgrade-nand-path
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install_bin /sbin/upgraded
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ln -s "$RAM_ROOT"/sbin/upgraded /tmp/upgraded
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nand_upgrade_stage1
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}
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50
package/base-files/files/lib/upgrade/stage2
Executable file
50
package/base-files/files/lib/upgrade/stage2
Executable file
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@ -0,0 +1,50 @@
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#!/bin/sh
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. /lib/functions.sh
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. /lib/functions/system.sh
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export IMAGE="$1"
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COMMAND="$2"
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export ARGV="$IMAGE"
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export ARGC=1
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export SAVE_CONFIG=1
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export SAVE_PARTITIONS=1
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export INTERACTIVE=0
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export VERBOSE=1
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export CONFFILES=/tmp/sysupgrade.conffiles
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export CONF_TAR=/tmp/sysupgrade.tgz
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[ -f "$CONF_TAR" ] || export SAVE_CONFIG=0
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[ -f /tmp/sysupgrade.always.overwrite.bootdisk.partmap ] && export SAVE_PARTITIONS=0
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include /lib/upgrade
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killall -9 telnetd
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killall -9 dropbear
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killall -9 ash
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kill_remaining TERM
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sleep 3
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kill_remaining KILL 1
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sleep 1
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if [ -n "$IMAGE" ] && type 'platform_pre_upgrade' >/dev/null 2>/dev/null; then
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IS_PRE_UPGRADE=1 platform_pre_upgrade "$IMAGE"
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# Needs to be unset again because of busybox weirdness ...
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IS_PRE_UPGRADE=
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fi
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if [ -n "$(rootfs_type)" ]; then
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echo "Switching to ramdisk..."
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run_ramfs "$COMMAND"
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else
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exec /bin/busybox ash -c "$COMMAND"
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fi
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@ -1,4 +1,7 @@
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#!/bin/sh
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[ "$1" = "nand" ] && exec /lib/upgrade/stage2 "$2" "$3"
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. /lib/functions.sh
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. /lib/functions/system.sh
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@ -11,7 +14,6 @@ export VERBOSE=1
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export SAVE_CONFIG=1
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export SAVE_OVERLAY=0
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export SAVE_PARTITIONS=1
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export DELAY=
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export CONF_IMAGE=
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export CONF_BACKUP_LIST=0
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export CONF_BACKUP=
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@ -25,7 +27,6 @@ export TEST=0
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while [ -n "$1" ]; do
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case "$1" in
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-i) export INTERACTIVE=1;;
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-d) export DELAY="$2"; shift;;
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-v) export VERBOSE="$(($VERBOSE + 1))";;
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-q) export VERBOSE="$(($VERBOSE - 1))";;
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-n) export SAVE_CONFIG=0;;
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@ -50,10 +51,9 @@ done
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export CONFFILES=/tmp/sysupgrade.conffiles
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export CONF_TAR=/tmp/sysupgrade.tgz
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export ARGV="$*"
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export ARGC="$#"
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IMAGE="$1"
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[ -z "$ARGV" -a -z "$NEED_IMAGE" -o $HELP -gt 0 ] && {
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[ -z "$IMAGE" -a -z "$NEED_IMAGE" -o $HELP -gt 0 ] && {
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cat <<EOF
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Usage: $0 [<upgrade-option>...] <image file or URL>
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$0 [-q] [-i] <backup-command> <file>
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@ -90,7 +90,7 @@ EOF
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exit 1
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}
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[ -n "$ARGV" -a -n "$NEED_IMAGE" ] && {
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[ -n "$IMAGE" -a -n "$NEED_IMAGE" ] && {
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cat <<-EOF
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-b|--create-backup and -r|--restore-backup do not perform a firmware upgrade.
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Do not specify both -b|-r and a firmware image.
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@ -136,14 +136,13 @@ sysupgrade_pre_upgrade="fwtool_pre_upgrade"
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include /lib/upgrade
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[ "$1" = "nand" ] && nand_upgrade_stage2 $@
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do_save_conffiles() {
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local conf_tar="${1:-$CONF_TAR}"
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[ -z "$(rootfs_type)" ] && {
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echo "Cannot save config while running from ramdisk."
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ask_bool 0 "Abort" && exit
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rm -f "$conf_tar"
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return 0
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}
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run_hooks "$CONFFILES" $sysupgrade_init_conffiles
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@ -184,8 +183,33 @@ type platform_check_image >/dev/null 2>/dev/null || {
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exit 1
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}
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case "$IMAGE" in
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http://*)
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wget -O/tmp/sysupgrade.img "$IMAGE"
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IMAGE=/tmp/sysupgrade.img
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;;
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esac
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IMAGE="$(readlink -f "$IMAGE")"
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case "$IMAGE" in
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'')
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echo "Image file not found."
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exit 1
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;;
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/tmp/*) ;;
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*)
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v "Image not in /tmp, copying..."
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cp -f "$IMAGE" /tmp/sysupgrade.img
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IMAGE=/tmp/sysupgrade.img
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;;
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esac
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export ARGV="$IMAGE"
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export ARGC=1
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for check in $sysupgrade_image_check; do
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( eval "$check \"\$ARGV\"" ) || {
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( $check "$IMAGE" ) || {
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if [ $FORCE -eq 1 ]; then
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echo "Image check '$check' failed but --force given - will update anyway!"
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break
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@ -211,6 +235,7 @@ elif ask_bool $SAVE_CONFIG "Keep config files over reflash"; then
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[ $TEST -eq 1 ] || do_save_conffiles
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export SAVE_CONFIG=1
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else
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[ $TEST -eq 1 ] || rm -f "$CONF_TAR"
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export SAVE_CONFIG=0
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fi
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@ -218,28 +243,18 @@ if [ $TEST -eq 1 ]; then
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exit 0
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fi
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if [ $SAVE_PARTITIONS -eq 0 ]; then
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touch /tmp/sysupgrade.always.overwrite.bootdisk.partmap
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else
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rm -f /tmp/sysupgrade.always.overwrite.bootdisk.partmap
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fi
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run_hooks "" $sysupgrade_pre_upgrade
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# Some platforms/devices may want different sysupgrade process, e.g. without
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# killing processes yet or calling ubus system upgrade method.
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# This is needed e.g. on NAND devices where we just want to trigger stage1 at
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# this point.
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if type 'platform_pre_upgrade' >/dev/null 2>/dev/null; then
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platform_pre_upgrade "$ARGV"
|
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fi
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ubus call system upgrade
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touch /tmp/sysupgrade
|
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if [ ! -f /tmp/failsafe ] ; then
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kill_remaining TERM
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sleep 3
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kill_remaining KILL
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fi
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if [ -n "$(rootfs_type)" ]; then
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v "Switching to ramdisk..."
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run_ramfs '. /lib/functions.sh; include /lib/upgrade; do_upgrade'
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else
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do_upgrade
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fi
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install_bin /sbin/upgraded
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v "Commencing upgrade. All shell sessions will be closed now."
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ubus call system sysupgrade "{
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\"prefix\": \"$RAM_ROOT\",
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\"path\": $(json_string "$IMAGE"),
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\"command\": \". /lib/functions.sh; include /lib/upgrade; do_upgrade_stage2\"
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}"
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||||
|
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Loading…
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