From e8506104c96cb2046780bf5ebb22bdfa6ca249f4 Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 27 Oct 2011 12:39:16 +0000
Subject: Add qos_* iptables chain namespace for QoS
Prefix the names of the iptables chains used for QoS with "qos_" to
allow for identification of QoS chains for removal across configuration
changes. When clearing QoS iptables chains, only remove chains with the
namespace prefix in order to preserve user and/or other package chains
in the mangle table.
Signed-off-by: Kevin Locke <klocke@digitalenginesoftware.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28622 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
package/qos-scripts/files/usr/lib/qos/generate.sh | 46 ++++++++++++++++-------
1 file changed, 32 insertions(+), 14 deletions(-)
(limited to 'package/qos-scripts/files/usr')
diff --git a/package/qos-scripts/files/usr/lib/qos/generate.sh b/package/qos-scripts/files/usr/lib/qos/generate.sh
index a697e9f4a..093967f7a 100755
--- a/package/qos-scripts/files/usr/lib/qos/generate.sh
+++ b/package/qos-scripts/files/usr/lib/qos/generate.sh
@@ -397,17 +397,17 @@ start_cg() {
local pktrules
local sizerules
enum_classes "$cg"
- add_rules iptrules "$ctrules" "iptables -t mangle -A ${cg}_ct"
+ add_rules iptrules "$ctrules" "iptables -t mangle -A qos_${cg}_ct"
config_get classes "$cg" classes
for class in $classes; do
config_get mark "$class" classnr
config_get maxsize "$class" maxsize
[ -z "$maxsize" -o -z "$mark" ] || {
add_insmod ipt_length
- append pktrules "iptables -t mangle -A ${cg} -m mark --mark $mark -m length --length $maxsize: -j MARK --set-mark 0" "$N"
+ append pktrules "iptables -t mangle -A qos_${cg} -m mark --mark $mark -m length --length $maxsize: -j MARK --set-mark 0" "$N"
}
done
- add_rules pktrules "$rules" "iptables -t mangle -A ${cg}"
+ add_rules pktrules "$rules" "iptables -t mangle -A qos_${cg}"
for iface in $INTERFACES; do
config_get classgroup "$iface" classgroup
config_get device "$iface" device
@@ -416,16 +416,16 @@ start_cg() {
config_get download "$iface" download
config_get halfduplex "$iface" halfduplex
download="${download:-${halfduplex:+$upload}}"
- append up "iptables -t mangle -A OUTPUT -o $device -j ${cg}" "$N"
- append up "iptables -t mangle -A FORWARD -o $device -j ${cg}" "$N"
+ append up "iptables -t mangle -A OUTPUT -o $device -j qos_${cg}" "$N"
+ append up "iptables -t mangle -A FORWARD -o $device -j qos_${cg}" "$N"
done
cat <<EOF
$INSMOD
-iptables -t mangle -N ${cg} >&- 2>&-
-iptables -t mangle -N ${cg}_ct >&- 2>&-
-${iptrules:+${iptrules}${N}iptables -t mangle -A ${cg}_ct -j CONNMARK --save-mark}
-iptables -t mangle -A ${cg} -j CONNMARK --restore-mark
-iptables -t mangle -A ${cg} -m mark --mark 0 -j ${cg}_ct
+iptables -t mangle -N qos_${cg} >&- 2>&-
+iptables -t mangle -N qos_${cg}_ct >&- 2>&-
+${iptrules:+${iptrules}${N}iptables -t mangle -A qos_${cg}_ct -j CONNMARK --save-mark}
+iptables -t mangle -A qos_${cg} -j CONNMARK --restore-mark
+iptables -t mangle -A qos_${cg} -m mark --mark 0 -j qos_${cg}_ct
$pktrules
$up$N${down:+${down}$N}
EOF
@@ -435,15 +435,33 @@ EOF
start_firewall() {
add_insmod ipt_multiport
add_insmod ipt_CONNMARK
- cat <<EOF
-iptables -t mangle -F
-iptables -t mangle -X
-EOF
+ stop_firewall
for group in $CG; do
start_cg $group
done
}
+stop_firewall() {
+ # Builds up a list of iptables commands to flush the qos_* chains,
+ # remove rules referring to them, then delete them
+
+ # Print rules in the mangle table, like iptables-save
+ iptables -t mangle -S |
+ # Find rules for the qos_* chains
+ grep '^-N qos_\|-j qos_' |
+ # Exclude rules in qos_* chains (inter-qos_* refs)
+ grep -v '^-A qos_' |
+ # Replace -N with -X and hold, with -F and print
+ # Replace -A with -D
+ # Print held lines at the end (note leading newline)
+ sed -e '/^-N/{s/^-N/-X/;H;s/^-X/-F/}' \
+ -e 's/^-A/-D/' \
+ -e '${p;g}' |
+ # Make into proper iptables calls
+ # Note: awkward in previous call due to hold space usage
+ sed -n -e 's/^./iptables -t mangle &/p'
+}
+
C="0"
INTERFACES=""
[ -e ./qos.conf ] && {
--
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