From: Arkadiusz Miśkiewicz <arekm@maven.pl>
Date: Wed, 23 Jul 2008 12:02:03 +0000 (+0000)
Subject: - prevent sshd from being killed via oom
X-Git-Tag: auto/th/openssh-5_1p1-2~1
X-Git-Url: https://git.pld-linux.org/?p=packages%2Fopenssh.git;a=commitdiff_plain;h=32322335c5a6f92ca0ff279f48173bfbffd5ecba

- prevent sshd from being killed via oom

Changed files:
    opensshd.init -> 1.32
---

diff --git a/opensshd.init b/opensshd.init
index 798d514..17c2a2b 100644
--- a/opensshd.init
+++ b/opensshd.init
@@ -8,6 +8,7 @@
 #		Ssh can be used for remote login, remote file copying, TCP port \
 #		forwarding etc. Ssh offers strong encryption and authentication.
 
+SSHD_OOM_ADJUST=-17
 
 # Source function library
 . /etc/rc.d/init.d/functions
@@ -28,6 +29,16 @@ else
 	exit 0
 fi
 
+adjust_oom() {
+    if [ -e /var/run/sshd.pid ]; then
+	for pid in $(cat /var/run/sshd.pid); do
+        	if [ -w "/proc/$pid/oom_adj" ]; then
+	            echo "$SSHD_OOM_ADJUST" > "/proc/$pid/oom_adj" 2> /dev/null || :
+	        fi
+	done
+    fi
+}
+
 checkconfig() {
 	/usr/sbin/sshd -t || exit 1
 }
@@ -63,6 +74,7 @@ start() {
 		msg_starting OpenSSH
 		daemon --pidfile /var/run/sshd.pid /usr/sbin/sshd
 		RETVAL=$?
+		adjust_oom
 		[ $RETVAL -eq 0 ] && touch /var/lock/subsys/sshd
 	else
 		msg_already_running OpenSSH