hak5
/
openwrt
mirror of https://github.com/hak5/openwrt.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

sysupgrade: Enable killing of all processes under upgraded 

If the sysupgrade scripts is called under upgraded, it will not kill all
other processes as it should to avoid interference by locked filesystem.
This patch checks the parent and if it is upgraded, it kills all.

Signed-off-by: André Valentin <avalentin@marcant.net>

SVN-Revision: 41563
lede-17.01
John Crispin 2014-07-10 19:16:27 +00:00
parent f8f6678574
commit be26421f45
1 changed files with 26 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
package/base-files/files/lib/upgrade/common.sh
View File

@ -99,6 +99,13 @@ kill_remaining() { # [ <signal> ]
local sig="${1:-TERM}"
echo -n "Sending $sig to remaining processes ... "
local my_pid=$$
local my_ppid=$(cut -d' ' -f4 /proc/$my_pid/stat)
local my_ppisupgraded=
grep -q upgraded /proc/$my_ppid/cmdline >/dev/null && {
local my_ppisupgraded=1
}
local stat
for stat in /proc/[0-9]*/stat; do
[ -f "$stat" ] || continue
@ -113,18 +120,26 @@ kill_remaining() { # [ <signal> ]
# Skip kernel threads
[ -n "$cmdline" ] || continue
case "$name" in
# Skip essential services
*procd*|*upgraded*|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*hostapd*|*wpa_supplicant*|*nas*) : ;;
if [ $$ -eq 1 ] || [ $my_ppid -eq 1 ] && [ -n "$my_ppisupgraded" ]; then
# Running as init process, kill everything except me
if [ $pid -ne $$ ] && [ $pid -ne $my_ppid ]; then
echo -n "$name "
kill -$sig $pid 2>/dev/null
fi
else
case "$name" in
# Skip essential services
*procd*|*ash*|*init*|*watchdog*|*ssh*|*dropbear*|*telnet*|*login*|*hostapd*|*wpa_supplicant*|*nas*) : ;;
# Killable process
*)
if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
echo -n "$name "
kill -$sig $pid 2>/dev/null
fi
;;
esac
# Killable process
*)
if [ $pid -ne $$ ] && [ $ppid -ne $$ ]; then
echo -n "$name "
kill -$sig $pid 2>/dev/null
fi
;;
esac
fi
done
echo ""
}