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authorBill Nottingham <notting@redhat.com>1999-09-21 20:43:59 +0000
committerBill Nottingham <notting@redhat.com>1999-09-21 20:43:59 +0000
commit14271eb50b57b1944541b48bdfb5aaf87a9befa8 (patch)
tree238e52cb9ad64fea51666234345002d7319d575b /rc.d
parent7f30358f8ffa24b805b22b96ad89a74851fe0b65 (diff)
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add a "DEFRAG_IPV4" setting
Diffstat (limited to 'rc.d')
-rwxr-xr-xrc.d/init.d/network37
1 files changed, 36 insertions, 1 deletions
diff --git a/rc.d/init.d/network b/rc.d/init.d/network
index 751005c3..e43fb433 100755
--- a/rc.d/init.d/network
+++ b/rc.d/init.d/network
@@ -71,11 +71,37 @@ ipv4_forward_set ()
fi
}
+ipv4_defrag_set ()
+{
+ # Sets whether or not to always defrag packets.
+ # Good for masquerading, or virtual server stuff.
+ # Not necessarily so good otherwise.
+ if [ -d /proc/sys/net/ipv4 ]; then
+ if [ ! -f /proc/sys/net/ipv4/ip_always_defrag ]; then
+ echo "/proc/sys/net/ipv4/ip_always_defrag is missing --" \
+ "cannot control IP defragmentation" >&2
+ else
+ if [ "$DEFRAG_IPV4" = "yes" -o "$DEFRAG_IPV4" = "true" ]; then
+ value=1
+ mesage="Enabling IPv4 automatic defragmentation"
+ else
+ value=0
+ message="Disabling IPv4 automatic defragmentation"
+ fi
+
+ if [ $value != `cat /proc/sys/net/ipv4/ip_always_defrag` ]; then
+ action "$message" /bin/true
+ echo "$value" > /proc/sys/net/ipv4/ip_always_defrag
+ fi
+ fi
+ fi
+}
# See how we were called.
case "$1" in
start)
ipv4_forward_set
+ ipv4_defrag_set
action "Bringing up interface lo" ./ifup ifcfg-lo
@@ -107,12 +133,21 @@ case "$1" in
;;
esac
./ifdown ifcfg-lo
- if [ -d /proc/sys/net/ipv4 -a -f /proc/sys/net/ipv4/ip_forward ]; then
+ if [ -d /proc/sys/net/ipv4 ]; then
+ if [ -f /proc/sys/net/ipv4/ip_forward ]; then
if [ `cat /proc/sys/net/ipv4/ip_forward` != 0 ]; then
action "Disabling IPv4 packet forwarding" /bin/true
echo 0 > /proc/sys/net/ipv4/ip_forward
fi
+ fi
+ if [ -f /proc/sys/net/ipv4/ip_always_defrag ]; then
+ if [ 'cat /proc/sys/net/ipv4/ip_always_defrag' != 0 ]; then
+ action "Disabling IPv4 automatic defragmentation" /bin/true
+ echo 0 > /proc/sys/net/ipv4/ip_always_defrag
+ fi
+ fi
fi
+
rm -f /var/lock/subsys/network
;;
status)