mcast4-pktfld01 revision 37550cf5a86c7ca7424a2a318dd64e550f13f5df 
1#!/bin/sh
2
3################################################################################
4##                                                                            ##
5## Copyright (c) International Business Machines  Corp., 2006                 ##
6##                                                                            ##
7## This program is free software;  you can redistribute it and#or modify      ##
8## it under the terms of the GNU General Public License as published by       ##
9## the Free Software Foundation; either version 2 of the License, or          ##
10## (at your option) any later version.                                        ##
11##                                                                            ##
12## This program is distributed in the hope that it will be useful, but        ##
13## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
14## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
15## for more details.                                                          ##
16##                                                                            ##
17## You should have received a copy of the GNU General Public License          ##
18## along with this program;  if not, write to the Free Software               ##
19## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA    ##
20##                                                                            ##
21##                                                                            ##
22################################################################################
23#
24# File:
25#   mcast4-pktfld01
26#
27# Description:
28#   Verify that the kernel is not crashed when joining a IPv4 multicast group
29#   a single socket, then receiving a large number of UDP packets at the socket
30#
31# Setup:
32#   See ltp-yyyymmdd/testcases/network/stress/README
33#
34# Author:
35#   Mitsuru Chinen <mitch@jp.ibm.com>
36#
37# History:
38#	May 1 2006 - Created (Mitsuru Chinen)
39#
40#-----------------------------------------------------------------------
41# Uncomment line below for debug output.
42#trace_logic=${trace_logic:-"set -x"}
43$trace_logic
44
45# The test case ID, the test case count and the total number of test case
46TCID=mcast4-pktfld01
47TST_TOTAL=1
48TST_COUNT=1
49export TCID
50export TST_COUNT
51export TST_TOTAL
52
53# Make sure the value of LTPROOT
54LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`}
55export LTPROOT
56
57# Check the environmanet variable
58. check_envval || exit $TST_TOTAL
59
60# Dulation of the test [sec]
61NS_DURATION=${NS_DURATION:-3600}      # 1 hour
62
63# The number of the test link where tests run
64LINK_NUM=${LINK_NUM:-0}
65
66# Network portion of the IPv4 address
67NETWORK_PART=${IPV4_NETWORK:-"10.0.0"}
68
69# Netmask of the IPv4 network
70NETWORK_MASK=24
71
72# Host portion of the IPv4 address
73LHOST_HOST_PART=${LHOST_IPV4_HOST:-"2"}     # local host
74RHOST_HOST_PART=${RHOST_IPV4_HOST:-"1"}     # remote host
75
76# Multicast Address
77MCAST_ADDR=224.10.0.1
78
79
80#-----------------------------------------------------------------------
81#
82# Function: do_cleanup
83#
84# Description:
85#   Recover the system configuration
86#
87#-----------------------------------------------------------------------
88do_cleanup()
89{
90    # Make sure to kill the multicast receiver and sender
91    killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1
92    $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1
93
94    # Clean up each interface
95    initialize_if lhost ${LINK_NUM}
96    initialize_if rhost ${LINK_NUM}
97}
98
99
100#-----------------------------------------------------------------------
101#
102# Function: do_setup
103#
104# Description:
105#   Configure the ssystem for the test
106#
107#-----------------------------------------------------------------------
108do_setup()
109{
110    # Initialize the system configuration
111    do_cleanup
112
113    # Call do_cleanup function before exit
114    trap do_cleanup 0
115
116    # Unset the maximum number of processes
117    ulimit -u unlimited
118
119    # name of interface of the local/remote host
120    lhost_ifname=`get_ifname lhost $LINK_NUM`
121    if [ $? -ne 0 ]; then
122	tst_resm TBROK "Failed to get the interface name at the local host"
123	exit $TST_TOTAL
124    fi
125
126    rhost_ifname=`get_ifname rhost $LINK_NUM`
127    if [ $? -ne 0 ]; then
128	tst_resm TBROK "Failed to get the interface name at the remote host"
129	exit $TST_TOTAL
130    fi
131
132    # Set IPv4 addresses to the interfaces
133    set_ipv4addr lhost $LINK_NUM $NETWORK_PART $LHOST_HOST_PART
134    if [ $? -ne 0 ]; then
135	tst_resm TBROK "Failed to add any IP address at the local host"
136	exit 1
137    fi
138
139    set_ipv4addr rhost $LINK_NUM $NETWORK_PART $RHOST_HOST_PART
140    if [ $? -ne 0 ]; then
141	tst_resm TBROK "Failed to add any IP address at the remote host"
142	exit 1
143    fi
144
145    # IPv4 address of the local/remote host
146    lhost_addr="${NETWORK_PART}.${LHOST_HOST_PART}"
147    rhost_addr="${NETWORK_PART}.${RHOST_HOST_PART}"
148
149    # Make sure the connectvity
150    check_icmpv4_connectivity $lhost_ifname $rhost_addr
151    if [ $? -ne 0 ]; then
152	tst_resm TBROK "There is no IPv4 connectivity."
153	exit 1
154    fi
155
156    # Make sure the sysctl values
157    sysctl -w net.ipv4.igmp_max_memberships=20 >/dev/null
158    if [ $? -ne 0 ]; then
159	tst_resm TBROK "Failed to set the sysctl value regarding multicast"
160	exit $TST_TOTAL
161    fi
162
163    sysctl -w net.ipv4.igmp_max_msf=10 >/dev/null
164    sysctl -w net.ipv4.conf.${lhost_ifname}.force_igmp_version=0 >/dev/null
165    sysctl -w net.ipv4.conf.all.force_igmp_version=0 >/dev/null
166}
167
168
169#-----------------------------------------------------------------------
170#
171# Main
172#
173#
174
175# Test description
176tst_resm TINFO "Verify that the kernel is not crashed when joining a IPv4 multicast group a single socket, then receiving a large number of UDP packets at the socket in $NS_DURATION [sec]"
177
178do_setup
179
180# Find the available consecutive ports
181mcast_port=`find_portbundle udp 1025 1`
182if [ $? -ne 0 ]; then
183    tst_resm TBROK "No port is available."
184    exit 1
185fi
186
187# Run a receiver
188ns-mcast_receiver -f 4 -I $lhost_ifname -m $MCAST_ADDR -p $mcast_port -b
189if [ $? -ne 0 ]; then
190    tst_resm TBROK "Failed to start multicast receiver"
191    exit 1
192fi
193
194# Run a sender
195ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-udpsender -D $MCAST_ADDR -f 4 -p $mcast_port -s 32767 -m -I $rhost_ifname -t $NS_DURATION' ; echo $?'`
196if [ $ret -ne 0 ]; then
197    tst_resm TBROK "Failed to start multicast sender"
198    exit 1
199fi
200
201#-----------------------------------------------------------------------
202#
203# Clean up
204#
205
206tst_resm TPASS "Test is finished successfully."
207exit 0
208