1#! /bin/sh -x
2#
3# sample script on using the ingress capabilities
4# This script just tags on the ingress interfac using Ipchains
5# the result is used for fast classification and re-marking
6# on the egress interface
7#
8#path to various utilities;
9#change to reflect yours.
10#
11IPROUTE=/root/DS-6-beta/iproute2-990530-dsing
12TC=$IPROUTE/tc/tc
13IP=$IPROUTE/ip/ip
14IPCHAINS=/root/DS-6-beta/ipchains-1.3.9/ipchains
15INDEV=eth2
16EGDEV="dev eth1"
17#
18# tag all incoming packets from host 10.2.0.24 to value 1
19# tag all incoming packets from host 10.2.0.3 to value 2
20# tag the rest of incoming packets from subnet 10.2.0.0/24 to value 3
21#These values are used in the egress
22#
23############################################################
24$IPCHAINS -A input -s 10.2.0.4/24 -m 3
25$IPCHAINS -A input -i $INDEV -s 10.2.0.24 -m 1
26$IPCHAINS -A input -i $INDEV -s 10.2.0.3 -m 2
27
28######################## Egress side ########################
29
30
31# attach a dsmarker
32#
33$TC qdisc add $EGDEV handle 1:0 root dsmark indices 64 set_tc_index
34#
35# values of the DSCP to change depending on the class
36#
37#becomes EF
38$TC class change $EGDEV classid 1:1 dsmark mask 0x3 \
39       value 0xb8
40#becomes AF11
41$TC class change $EGDEV classid 1:2 dsmark mask 0x3 \
42       value 0x28
43#becomes AF21
44$TC class change $EGDEV classid 1:3 dsmark mask 0x3 \
45       value 0x48
46#
47#
48# The class mapping
49#
50$TC filter add $EGDEV parent 1:0 protocol ip prio 4 handle 1 fw classid 1:1
51$TC filter add $EGDEV parent 1:0 protocol ip prio 4 handle 2 fw classid 1:2
52$TC filter add $EGDEV parent 1:0 protocol ip prio 4 handle 3 fw classid 1:3
53#
54
55#
56echo "---- qdisc parameters Ingress  ----------"
57$TC qdisc ls dev $INDEV
58echo "---- Class parameters Ingress  ----------"
59$TC class ls dev $INDEV
60echo "---- filter parameters Ingress ----------"
61$TC filter ls dev $INDEV parent 1:0
62
63echo "---- qdisc parameters Egress  ----------"
64$TC qdisc ls $EGDEV
65echo "---- Class parameters Egress  ----------"
66$TC class ls $EGDEV
67echo "---- filter parameters Egress ----------"
68$TC filter ls $EGDEV parent 1:0
69