1#!/bin/sh
2
3################################################################################
4##                                                                            ##
5## Copyright (c) International Business Machines  Corp., 2005                 ##
6##                                                                            ##
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10## (at your option) any later version.                                        ##
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14## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
15## for more details.                                                          ##
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19## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    ##
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21##                                                                            ##
22################################################################################
23#
24# File:
25#   tcp4-multi-diffnic01
26#
27# Description:
28#   Verify that the kernel is not crashed with multiple connection to the
29#   different NIC with the following condition:
30#     - The version of IP is IPv4
31#     - Network is not delayed
32#     - IPsec is not used
33#
34#   *) This script may be read by the other test case
35#
36# Setup:
37#   See testcases/network/stress/README
38#
39# Author:
40#   Mitsuru Chinen <mitch@jp.ibm.com>
41#
42# History:
43#	Oct 19 2005 - Created (Mitsuru Chinen)
44#
45#-----------------------------------------------------------------------
46# Uncomment line below for debug output.
47#trace_logic=${trace_logic:-"set -x"}
48$trace_logic
49
50# The test case ID, the test case count and the total number of test case
51TCID=${TCID:-tcp4-multi-diffnic01}
52TST_TOTAL=1
53TST_COUNT=1
54export TCID
55export TST_COUNT
56export TST_TOTAL
57
58# Test description
59tst_resm TINFO "Verify that the kernel is not crashed with multiple connection to the different NIC."
60
61# Make sure the value of LTPROOT
62LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`}
63export LTPROOT
64
65# Check the environmanet variable
66. check_envval || exit $TST_TOTAL
67
68# Dulation of the test [sec]
69NS_DURATION=${NS_DURATION:-3600}      # 1 hour
70
71#The number of the test link where tests run
72LINK_NUM=${LINK_NUM:-0}
73
74# The version of IP
75IP_VER=${IP_VER:-4}
76
77# true, if ipsec is used
78DO_IPSEC=${DO_IPSEC:-false}
79
80# The value of SPI
81SPI=${SPI:-1000}
82
83# IPsec Protocol ( ah / esp / ipcomp )
84IPSEC_PROTO=${IPSEC_PROTO:-ah}
85
86# IPsec Mode ( transport / tunnel )
87IPSEC_MODE=${IPSEC_MODE:-transport}
88
89# true, if network is delayed
90DO_NET_DELAY=${DO_NET_DELAY:-false}
91
92# Amount of network delay [ms]
93NET_DELAY=${NET_DELAY:-600}
94
95# The deflection of network delay [ms]
96NET_DELAY_DEFL=${NET_DELAY_DEFL:-200}
97
98
99#-----------------------------------------------------------------------
100#
101# Function: do_cleanup
102#
103# Description:
104#   Recover the system configuration
105#
106#-----------------------------------------------------------------------
107do_cleanup()
108{
109    # Kill the tcp traffic server
110    killall_tcp_traffic
111
112    # Unset SAD/SPD
113    output_ipsec_conf flush | setkey -c >/dev/null 2>&1
114    $LTP_RSH $RHOST ${LTPROOT}/'testcases/bin/output_ipsec_conf flush | PATH=/sbin:/usr/sbin:$PATH setkey -c' >/dev/null 2>&1
115
116    # Clean up each interface
117    link_num=0
118    while [ $link_num -lt $link_total ]; do
119	# Unset network delay
120	rhost_ifname=`get_ifname rhost $link_num`
121	$LTP_RSH $RHOST "PATH=/sbin:/usr/sbin:$PATH tc qdisc del dev $rhost_ifname root netem" >/dev/null 2>&1
122
123	# Initialize the interfaces
124	initialize_if lhost ${link_num}
125	initialize_if rhost ${link_num}
126
127	link_num=`expr $link_num + 1`
128    done
129}
130
131
132#-----------------------------------------------------------------------
133#
134# Setup
135#
136#
137
138# Unset the maximum number of processes
139ulimit -u unlimited
140
141# Output the informaion
142tst_resm TINFO "- Test duration is $NS_DURATION [sec]"
143
144link_total=`echo $LHOST_HWADDRS | wc -w`
145rhost_link_total=`echo $RHOST_HWADDRS | wc -w`
146if [ $link_total -ne $rhost_link_total ]; then
147    tst_resm TBROK "The number of element in LHOST_HWADDRS differs from RHOST_HWADDRS"
148    exit 1
149fi
150if [ $link_total -lt 2 ]; then
151    tst_resm TBROK "This test case requires plural NICs."
152    exit 1
153fi
154tst_resm TINFO "- Target number of the connection is $link_total"
155
156tst_resm TINFO "- Version of IP is IPv${IP_VER}"
157
158if $DO_NET_DELAY ; then
159    message=`check_netem`
160    if [ $? -ne 0 ]; then
161	tst_resm TBROK "$message"
162	exit 1
163    fi
164    tst_resm TINFO "- Network delay is ${NET_DELAY}ms +/- ${NET_DELAY_DEFL}ms"
165fi
166
167if $DO_IPSEC ; then
168    message=`check_setkey`
169    if [ $? -ne 0 ]; then
170	tst_resm TBROK "$message"
171	exit 1
172    fi
173
174    case $IPSEC_PROTO in
175	ah)
176	tst_resm TINFO "- IPsec [ AH / $IPSEC_MODE ]"
177	;;
178	esp)
179	tst_resm TINFO "- IPsec [ ESP / $IPSEC_MODE ]"
180	;;
181	ipcomp)
182	tst_resm TINFO "- IPcomp [ $IPSEC_MODE ]"
183	;;
184    esac
185fi
186
187# Initialize the system configuration
188do_cleanup
189
190# Call do_cleanup function before exit
191trap do_cleanup 0
192
193# Loop for NIC configuration
194link_num=0
195lhost_addrs=""
196while [ $link_num -lt $link_total ]; do
197    lhost_ifname=`get_ifname lhost $link_num`
198    # name of interface of the local/remote host
199    if [ $? -ne 0 ]; then
200	tst_resm TBROK "Failed to get the interface name at the local host"
201	exit $TST_TOTAL
202    fi
203    rhost_ifname=`get_ifname rhost $link_num`
204    if [ $? -ne 0 ]; then
205	tst_resm TBROK "Failed to get the interface name at the remtoe host"
206	exit $TST_TOTAL
207    fi
208
209    # Set the IP address to each interface
210    case $IP_VER in
211	4)
212	network_part="10.0.${link_num}"
213	network_mask=24
214	lhost_host_part="2"     # local host
215	rhost_host_part="1"     # remote host
216	set_ipv4addr lhost $link_num $network_part $lhost_host_part
217	if [ $? -ne 0 ]; then
218	    tst_resm TBROK "Failed to set IPv4 address at the local host"
219	    exit 1
220	fi
221	set_ipv4addr rhost $link_num $network_part $rhost_host_part
222	if [ $? -ne 0 ]; then
223	    tst_resm TBROK "Failed to set IPv4 address at the remote host"
224	    exit 1
225	fi
226
227	# IPv4 address of the local/remote host
228	lhost_addr="${network_part}.${lhost_host_part}"
229	rhost_addr="${network_part}.${rhost_host_part}"
230	lhost_addrs="${lhost_addrs} ${lhost_addr}"
231	;;
232
233	6)
234	network_part="fd00:1:0:`printf %x ${link_num}`"
235	network_mask=64
236	lhost_host_part=":2"     # local host
237	rhost_host_part=":1"     # remote host
238	add_ipv6addr lhost $link_num $network_part $lhost_host_part
239	if [ $? -ne 0 ]; then
240	    tst_resm TBROK "Failed to set IPv6 address at the local host"
241	    exit 1
242	fi
243	add_ipv6addr rhost $link_num $network_part $rhost_host_part
244	if [ $? -ne 0 ]; then
245	    tst_resm TBROK "Failed to set IPv6 address at the remote host"
246	    exit 1
247	fi
248	lhost_addr="${network_part}:${lhost_host_part}"
249	rhost_addr="${network_part}:${rhost_host_part}"
250	lhost_addrs="${lhost_addrs} ${lhost_addr}"
251	;;
252
253	*)
254	tst_resm TBROK "Unknown IP version"
255	;;
256    esac
257
258    # Make the network delay
259    if $DO_NET_DELAY ; then
260	ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc add dev $rhost_ifname root netem delay ${NET_DELAY}ms ${NET_DELAY_DEFL}ms distribution normal' ; echo $?'`
261	if [ $ret -ne 0 ]; then
262	    tst_resm TBROK "Failed to make the delayed network"
263	    exit 1
264	fi
265    fi
266
267    # Configure SAD/SPD
268    if $DO_IPSEC ; then
269	ipsec_log=`mktemp -p $TMPDIR`
270
271	# Set SAD/SPD according to the variables
272	output_ipsec_conf src \
273	    $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr \
274		| setkey -c 2>&1 | tee $ipsec_log
275	if [ $? -ne 0 -o -s $ipsec_log ]; then
276	    rm -f $ipsec_log
277	    tst_resm TBROK "Failed to configure SAD/SPD on the local host."
278	    exit 1
279	fi
280
281	$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/output_ipsec_conf dst $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr' | PATH=/sbin:/usr/sbin:$PATH setkey -c' 2>&1 | tee $ipsec_log
282	if [ $? -ne 0 -o -s $ipsec_log ]; then
283	    rm -f $ipsec_log
284	    tst_resm TBROK "Failed to configure SAD/SPD on the remote host."
285	    exit 1
286	fi
287	rm -f $ipsec_log
288    fi
289
290    # Make sure the connectivity
291    case $IP_VER in
292	4)
293	ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv4_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
294	if [ $ret -ne 0 ]; then
295	    tst_resm TBROK "There is no IPv4 connectivity on Link${link_num}"
296	    exit 1
297	fi
298	;;
299
300	6)
301	ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv6_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
302	if [ $ret -ne 0 ]; then
303	    tst_resm TBROK "There is no IPv6 connectivity on Link${link_num}"
304	    exit 1
305	fi
306	;;
307    esac
308
309    link_num=`expr $link_num + 1`
310done
311
312#-----------------------------------------------------------------------
313#
314# Main
315#
316#
317
318# Find the available consecutive ports
319server_port=`find_portbundle tcp 1025 1`
320if [ $? -ne 0 ]; then
321    tst_resm TBROK "No port is available."
322    exit 1
323fi
324
325# Run a server
326info_file=`mktemp -p $TMPDIR`
327ns-tcpserver -b -c -f $IP_VER -p $server_port -o $info_file
328if [ $? -ne 0 ]; then
329    tst_resm TFAIL "Failed to run tcp traffic server."
330    rm -f $info_file
331    exit 1
332fi
333
334# Collect the information of the server
335while true ; do
336    if [ -s $info_file ]; then
337	break
338    fi
339done
340server_pid=`grep PID: $info_file | cut -f 2 -d ' '`
341rm -f $info_file
342
343# Main loop
344connection_num=0
345while [ $connection_num -lt $link_total ]; do
346    field=`expr $connection_num + 1`
347    lhost_addr=`echo $lhost_addrs | cut -d ' ' -f $field`
348
349    # Run a client
350    ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-tcpclient -b -f $IP_VER -S $lhost_addr -p $server_port'; echo $?'`
351    if [ $ret -ne 0 ]; then
352	tst_resm TFAIL "Failed to run client on Link${connection_num}"
353	exit 1
354    fi
355    connection_num=`expr $connection_num + 1`
356done
357
358# Watch the TCP traffic server
359start_epoc=`date +%s`
360while true ; do
361    current_epoc=`date +%s`
362    elapse_epoc=`expr $current_epoc - $start_epoc`
363
364    if [ $elapse_epoc -ge $NS_DURATION ]; then
365	break
366    else
367	ps auxw | fgrep ns-tcpserver | fgrep -l $server_pid >/dev/null 2>&1
368	if [ $? -ne 0 ]; then
369	    tst_resm TFAIL "tcp traffic server is dead in $elapse_epoc [sec]"
370	    exit 1
371	fi
372    fi
373    sleep 1
374done
375
376
377#-----------------------------------------------------------------------
378#
379# Clean up
380#
381
382tst_resm TPASS "Test is finished successfully."
383exit 0
384