[LTP] [PATCH v5 8/8] network/route: Rewrite route{4, 6}-change-if into new API

Petr Vorel
2019-10-11T13:24:33Z

* Drop route command (use just ip command), support both IPv4 and IPv6
* Use unused network range to avoid clash with real network
* Add verification with ping (previous version sent UDP datagram with
ns-udpsender, but didn't verify receiving it on rhost and didn't setup
rhost ip at all)
* Add tst_get_ifaces_cnt() into tst_net.sh

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
runtest/net_stress.route | 4 +-
testcases/lib/tst_net.sh | 8 +
.../network/stress/route/00_Descriptions.txt | 18 +-
.../network/stress/route/route-change-if.sh | 90 +++++
.../network/stress/route/route4-change-if | 324 ------------------
.../network/stress/route/route6-change-if | 323 -----------------
6 files changed, 103 insertions(+), 664 deletions(-)
create mode 100755 testcases/network/stress/route/route-change-if.sh
delete mode 100644 testcases/network/stress/route/route4-change-if
delete mode 100644 testcases/network/stress/route/route6-change-if

diff --git a/runtest/net_stress.route b/runtest/net_stress.route
index cde6d5d11..4eff6766a 100644
--- a/runtest/net_stress.route
+++ b/runtest/net_stress.route
@@ -1,12 +1,12 @@
# Stress test for routing table
route4-change-dst route-change-dst.sh
route4-change-gw route-change-gw.sh
-route4-change-if route4-change-if
+route4-change-if route-change-if.sh
route4-redirect route4-redirect
route4-rmmod route4-rmmod

route6-change-dst route-change-dst.sh -6
route6-change-gw route-change-gw.sh -6
-route6-change-if route6-change-if
+route6-change-if route-change-if.sh -6
route6-redirect route6-redirect
route6-rmmod route6-rmmod
diff --git a/testcases/lib/tst_net.sh b/testcases/lib/tst_net.sh
index 92d55b5e2..4be1bc0fc 100644
--- a/testcases/lib/tst_net.sh
+++ b/testcases/lib/tst_net.sh
@@ -289,6 +289,14 @@ tst_get_ifaces()
fi
}

+# Get count of test interfaces for local/remote host.
+tst_get_ifaces_cnt()
+{
+ tst_test_cmds awk
+ local type="${1:-lhost}"
+ echo "$(tst_get_ifaces $type)" | awk '{print NF}'
+}
+
# Get HW addresses from defined test interface names.
# tst_get_hwaddrs [TYPE]
# TYPE: { lhost | rhost }; Default value is 'lhost'.
diff --git a/testcases/network/stress/route/00_Descriptions.txt b/testcases/network/stress/route/00_Descriptions.txt
index bb8f46da6..e0e2e42c6 100644
--- a/testcases/network/stress/route/00_Descriptions.txt
+++ b/testcases/network/stress/route/00_Descriptions.txt
@@ -6,13 +6,9 @@ route{4,6}-change-gw
Verify the IPv4/IPv6 is not broken when ip command changes route
gateway many times

-route4-change-if01
- Verify the kernel is not crashed when the interface of an IPv4 route is
- changed frequently by route command
-
-route4-change-if02
- Verify the kernel is not crashed when the interface of an IPv4 route is
- changed frequently by ip command
+route{4,6}-change-if
+ Verify the IPv4/IPv6 is not broken when ip command changes route
+ interface many times

route4-redirect01
Verify the kernel is not crashed when the IPv4 route is modified by
@@ -27,14 +23,6 @@ route4-rmmod02
then it is deleted by the removing network driver

-route6-change-if01
- Verify the kernel is not crashed when the interface of an IPv6 route is
- changed frequently by route command
-
-route6-change-if02
- Verify the kernel is not crashed when the interface of an IPv6 route is
- changed frequently by ip command
-
route6-redirect01
Verify the kernel is not crashed when the IPv6 route is modified by
ICMP Redirects frequently
diff --git a/testcases/network/stress/route/route-change-if.sh b/testcases/network/stress/route/route-change-if.sh
new file mode 100755
index 000000000..fd7724d59
--- /dev/null
+++ b/testcases/network/stress/route/route-change-if.sh
@@ -0,0 +1,90 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2019 Petr Vorel <pvorel@suse.cz>
+# Copyright (c) International Business Machines Corp., 2006
+# Author: Mitsuru Chinen <mitch@jp.ibm.com>
+#
+# Change route interface
+# lhost: 10.23.x.2, gw (on rhost): 10.23.x.1, rhost: 10.23.0.1, switching ifaces on lhost
+
+TST_TESTFUNC="test_if"
+. route-lib.sh
+TST_CLEANUP="cleanup"
+
+add_macvlan()
+{
+ local action="add"
+ local OPTIND
+ while getopts d opt; do
+ case "$opt" in
+ d) action="del";;
+ esac
+ done
+ shift $((OPTIND - 1))
+
+ local iface="$1"
+ local type="${2:-lhost}"
+
+ cmd="ip link $action $iface link $(tst_iface $type) type macvlan mode bridge"
+ if [ $type = "lhost" ]; then
+ ROD $cmd
+ [ "$action" = "add" ] || return
+ LHOST_IFACES="$LHOST_IFACES $iface"
+ else
+ tst_rhost_run -s -c "$cmd"
+ [ "$action" = "add" ] || return
+ RHOST_IFACES="$RHOST_IFACES $iface"
+ fi
+ tst_init_iface $type 1
+}
+
+setup()
+{
+ tst_res TINFO "change IPv$TST_IPVER route interface $NS_TIMES times"
+
+ rt="$(tst_ipaddr_un -p 0)"
+ rhost="$(tst_ipaddr_un 0 1)"
+ tst_add_ipaddr -s -q -a $rhost rhost
+
+ if [ $(tst_get_ifaces_cnt) -lt 2 ]; then
+ new_liface="ltp_mv2"
+ tst_res TINFO "2 or more local ifaces required, adding $new_liface"
+ add_macvlan $new_liface
+ fi
+
+ if [ $(tst_get_ifaces_cnt rhost) -lt 2 ]; then
+ new_riface="ltp_mv1"
+ tst_res TINFO "2 or more remote ifaces required, adding $new_riface"
+ add_macvlan $new_riface rhost
+ fi
+}
+
+test_if()
+{
+ local max=253
+ [ "$TST_IPV6" ] && max=65533
+ local net_id=$(($1 % $max + 1))
+ local gw="$(tst_ipaddr_un $net_id 1)"
+ local lhost="$(tst_ipaddr_un $net_id 2)"
+ local link_num="$(($1 % $(tst_get_ifaces_cnt)))"
+ local iface="$(tst_iface lhost $link_num)"
+
+ tst_res TINFO "testing route over interface '$iface' with gateway '$gw'"
+
+ tst_add_ipaddr -s -q -a $lhost lhost $link_num
+ tst_add_ipaddr -s -q -a $gw rhost $link_num
+ ROD ip route add $rt dev $iface via $gw
+ EXPECT_PASS_BRK ping$TST_IPV6 -c1 -I $lhost $rhost \>/dev/null
+ ROD ip route del $rt dev $iface via $gw
+ tst_del_ipaddr -s -q -a $lhost lhost $link_num
+ tst_del_ipaddr -s -q -a $gw rhost $link_num
+}
+
+cleanup()
+{
+ [ "$new_liface" ] && add_macvlan -d $new_liface
+ [ "$new_riface" ] && add_macvlan -d $new_riface rhost
+ route_cleanup
+}
+
+tst_run
diff --git a/testcases/network/stress/route/route4-change-if b/testcases/network/stress/route/route4-change-if
deleted file mode 100644
index 8753203d0..000000000
--- a/testcases/network/stress/route/route4-change-if
+++ /dev/null
@@ -1,324 +0,0 @@
-#!/bin/sh
-
-################################################################################
-## ##
-## Copyright (c) International Business Machines Corp., 2006 ##
-## ##
-## This program is free software; you can redistribute it and#or modify ##
-## it under the terms of the GNU General Public License as published by ##
-## the Free Software Foundation; either version 2 of the License, or ##
-## (at your option) any later version. ##
-## ##
-## This program is distributed in the hope that it will be useful, but ##
-## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
-## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
-## for more details. ##
-## ##
-## You should have received a copy of the GNU General Public License ##
-## along with this program; if not, write to the Free Software ##
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ##
-## ##
-## ##
-################################################################################
-#
-# File:
-# route4-change-if
-#
-# Description:
-# Verify the kernel is not crashed when the interface of an IPv4 route is
-# changed frequently
-# test01 - by route command
-# test02 - by ip command
-#
-# Setup:
-# See testcases/network/stress/README
-#
-# Author:
-# Mitsuru Chinen <mitch@jp.ibm.com>
-#
-# History:
-# Mar 17 2006 - Created (Mitsuru Chinen)
-#
-#-----------------------------------------------------------------------
-# Uncomment line below for debug output.
-#trace_logic=${trace_logic:-"set -x"}
-$trace_logic
-
-# Make sure the value of LTPROOT
-LTPROOT=${LTPROOT:-`(cd ../../../../ ; pwd)`}
-export LTPROOT
-
-# Total number of the test case
-TST_TOTAL=2
-export TST_TOTAL
-
-# Default of the test case ID and the test case count
-TCID=route4-change-if
-TST_COUNT=0
-export TCID
-export TST_COUNT
-
-# Check the environmanet variable
-. check_envval || exit $TST_TOTAL
-
-# The number of times where route is changed
-NS_TIMES=${NS_TIMES:-10000}
-
-# The first 2 ocnted of the Network portion of the gateway address
-IPV4_NETWORK_PRE=${IPV4_NETWORK_PRE:-"10.0"}
-
-# Netmask of for the gateway
-IPV4_NETMASK_NUM=24
-
-# Host portion of the IPv4 address
-LHOST_IPV4_HOST=${LHOST_IPV4_HOST:-"2"} # src
-RHOST_IPV4_HOST=${RHOST_IPV4_HOST:-"1"} # gateway
-
-# The destination network
-DST_NETWORK="10.10.0" # destination network would be 10.10.0.0/24
-DST_HOST="5"
-DST_PORT="7"
-
-
-#-----------------------------------------------------------------------
-#
-# NAME:
-# do_setup
-#
-# DESCRIPTION:
-# Make a IPv4 connectivity
-#
-# SET VALUES:
-# rhost_ipv4addr - IPv4 Address of the remote host
-# lhost_ifname - Interface name of the local host
-# rhost_ifname - Interface name of the remote host
-#
-#-----------------------------------------------------------------------
-do_setup()
-{
- TCID=route4-change-if
- TST_COUNT=0
-
- # Get the number of the test links
- link_total=`echo $LHOST_HWADDRS | wc -w`
- rhost_link_total=`echo $RHOST_HWADDRS | wc -w`
- if [ $link_total -ne $rhost_link_total ]; then
- tst_resm TBROK "The number of element in LHOST_HWADDRS differs from RHOST_HWADDRS"
- exit $TST_TOTAL
- fi
- if [ $link_total -lt 2 ]; then
- tst_resm TBROK "This test case requires plural Test Links"
- exit $TST_TOTAL
- fi
-
- lhost_ifname_array=""
- rhost_ifname_array=""
- link_num=0
- while [ $link_num -lt $link_total ]; do
- # Get the Interface names of the local host
- lhost_ifname=`get_ifname lhost ${link_num}`
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to get the interface name at the local host"
- exit $TST_TOTAL
- fi
- lhost_ifname_array="$lhost_ifname_array $lhost_ifname"
-
- # Get the Interface names of the remote host
- rhost_ifname=`get_ifname rhost ${link_num}`
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to get the interface name at the remote host"
- exit $TST_TOTAL
- fi
- rhost_ifname_array="$rhost_ifname_array $rhost_ifname"
-
- # Initialize the interfaces of the remote host
- initialize_if rhost ${link_num}
-
- # Set IPv4 address to the interface of the remote host
- set_ipv4addr rhost ${link_num} "${IPV4_NETWORK_PRE}.${link_num}" ${RHOST_IPV4_HOST}
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to assign IP address to the interface $rhost_ifname at the remote host"
- exit $TST_TOTAL
- fi
-
- link_num=`expr $link_num + 1`
- done
-}
-
-
-
-
-#-----------------------------------------------------------------------
-#
-# NAME:
-# do_cleanup
-#
-# DESCRIPTION:
-# Recover the tested interfaces
-#
-#-----------------------------------------------------------------------
-do_cleanup()
-{
- # Make sure to kill the udp datagram sender
- killall -SIGHUP ns-udpsender >/dev/null 2>&1
-
- # Initialize the interfaces
- link_num=0
- while [ $link_num -lt $link_total ]; do
- initialize_if lhost ${link_num}
- initialize_if rhost ${link_num}
- link_num=`expr $link_num + 1`
- done
-}
-
-
-#-----------------------------------------------------------------------
-#
-# FUNCTION:
-# test_body
-#
-# DESCRIPTION:
-# main code of the test
-#
-# Arguments:
-# $1: define the test type
-# 1 - route command case
-# 2 - ip command case
-#
-#-----------------------------------------------------------------------
-test_body()
-{
- test_type=$1
-
- TCID=route4-change-if0${test_type}
- TST_COUNT=$test_type
-
- case $test_type in
- 1)
- test_command="route"
- ;;
- 2)
- test_command="ip"
- ;;
- *)
- tst_resm TBROK "unspecified case"
- return 1
- ;;
- esac
-
- tst_resm TINFO "Verify the kernel is not crashed when the interface of an IPv4 route is changed frequently by $test_command command in $NS_TIMES times"
-
- link_num=0
- while [ $link_num -lt $link_total ]; do
- # Initialize the interface of the local host
- initialize_if lhost ${link_num}
-
- # Assign IPv4 address to the interface of the local host
- set_ipv4addr lhost ${link_num} "${IPV4_NETWORK_PRE}.${link_num}" ${LHOST_IPV4_HOST}
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to assign an IPv4 address at the local host"
- return 1
- fi
-
- # Check the connectivity to the gateway
- field=`expr $link_num + 1`
- lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field`
- check_icmpv4_connectivity $lhost_ifname "${IPV4_NETWORK_PRE}.${link_num}.${LHOST_IPV4_HOST}"
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Test Link $link_num is somthing wrong."
- return 1
- fi
- link_num=`expr $link_num + 1`
- done
-
- # Set the variables regarding the destination host
- dst_addr=${DST_NETWORK}.${DST_HOST}
- dst_network=${DST_NETWORK}.0
-
- # Set the first route
- link_num=0
- field=`expr $link_num + 1`
- lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field`
- gateway="${IPV4_NETWORK_PRE}.${link_num}.${RHOST_IPV4_HOST}"
- case $test_type in
- 1)
- route add -net $dst_network netmask 255.255.255.0 gw $gateway dev $lhost_ifname
- ;;
- 2)
- ip route add ${dst_network}/24 via $gateway dev $lhost_ifname
- ;;
- esac
-
- # Load the route with UDP traffic
- ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -b -s 1472
- if [ $? -ne 0 ]; then
- tst_resm TFAIL "Failed to run a UDP datagram sender"
- return 1
- fi
-
- # Loop for changing the route
- cnt=0
- while [ $cnt -lt $NS_TIMES ]; do
- link_num=`expr $link_num + 1`
- if [ $link_num -ge $link_total ]; then
- link_num=0
- fi
-
- pre_lhost_ifname=$lhost_ifname
- pre_gateway=$gateway
-
- field=`expr $link_num + 1`
- lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field`
- gateway="${IPV4_NETWORK_PRE}.${link_num}.${RHOST_IPV4_HOST}"
-
- case $test_type in
- 1)
- route add -net $dst_network netmask 255.255.255.0 gw $gateway dev $lhost_ifname
- route del -net $dst_network netmask 255.255.255.0 gw $pre_gateway dev $pre_lhost_ifname
- ;;
- 2)
- ip route change ${dst_network}/24 via $gateway dev $lhost_ifname
- ;;
- esac
- if [ $? -ne 0 ]; then
- tst_resm TFAIL "Failed to change the gateway to $gateway"
- return 1
- fi
-
- # Rerun if udp datagram sender is dead
- ps auxw | fgrep -v grep | grep ns-udpsender > /dev/null
- if [ $? -ne 0 ]; then
- ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -b -s 1472
- if [ $? -ne 0 ]; then
- tst_resm TFAIL "Failed to run a UDP datagram sender"
- return 1
- fi
- fi
-
- cnt=`expr $cnt + 1`
- done
-
- # Kill the udp datagram sender
- killall -SIGHUP ns-udpsender
-
- tst_resm TPASS "Test is finished correctly."
- return 0
-}
-
-
-#-----------------------------------------------------------------------
-#
-# Main
-#
-# Exit Value:
-# The number of the failure
-#
-#-----------------------------------------------------------------------
-
-RC=0
-do_setup
-test_body 1 || RC=`expr $RC + 1` # Case of route command
-test_body 2 || RC=`expr $RC + 1` # Case of ip command
-do_cleanup
-
-exit $RC
diff --git a/testcases/network/stress/route/route6-change-if b/testcases/network/stress/route/route6-change-if
deleted file mode 100644
index 051ba8bcc..000000000
--- a/testcases/network/stress/route/route6-change-if
+++ /dev/null
@@ -1,323 +0,0 @@
-#!/bin/sh
-
-################################################################################
-## ##
-## Copyright (c) International Business Machines Corp., 2006 ##
-## ##
-## This program is free software; you can redistribute it and#or modify ##
-## it under the terms of the GNU General Public License as published by ##
-## the Free Software Foundation; either version 2 of the License, or ##
-## (at your option) any later version. ##
-## ##
-## This program is distributed in the hope that it will be useful, but ##
-## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
-## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
-## for more details. ##
-## ##
-## You should have received a copy of the GNU General Public License ##
-## along with this program; if not, write to the Free Software ##
-## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ##
-## ##
-## ##
-################################################################################
-#
-# File:
-# route6-change-if
-#
-# Description:
-# Verify the kernel is not crashed when the interface of an IPv6 route is
-# changed frequently
-# test01 - by route command
-# test02 - by ip command
-#
-# Setup:
-# See testcases/network/stress/README
-#
-# Author:
-# Mitsuru Chinen <mitch@jp.ibm.com>
-#
-# History:
-# Mar 17 2006 - Created (Mitsuru Chinen)
-#
-#-----------------------------------------------------------------------
-# Uncomment line below for debug output.
-#trace_logic=${trace_logic:-"set -x"}
-$trace_logic
-
-# Make sure the value of LTPROOT
-LTPROOT=${LTPROOT:-`(cd ../../../../ ; pwd)`}
-export LTPROOT
-
-# Total number of the test case
-TST_TOTAL=2
-export TST_TOTAL
-
-# Default of the test case ID and the test case count
-TCID=route6-change-if
-TST_COUNT=0
-export TCID
-export TST_COUNT
-
-# Check the environmanet variable
-. check_envval || exit $TST_TOTAL
-
-# The number of times where route is changed
-NS_TIMES=${NS_TIMES:-10000}
-
-# The first 2 ocnted of the Network portion of the gateway address
-IPV6_NETWORK_PRE="fec0:1:1"
-
-# Netmask of for the gateway
-IPV6_NETMASK_NUM=64
-
-# Host portion of the IPv6 address
-LHOST_IPV6_HOST=":2" # src
-RHOST_IPV6_HOST=":1" # gateway
-
-# The destination network
-DST_NETWORK="fd00:100:1:1" # dest network would be fd00:100:1:1:::/64
-DST_HOST=":5"
-DST_PORT="7"
-
-
-#-----------------------------------------------------------------------
-#
-# NAME:
-# do_setup
-#
-# DESCRIPTION:
-# Make a IPv6 connectivity
-#
-# SET VALUES:
-# rhost_ipv6addr - IPv6 Address of the remote host
-# lhost_ifname - Interface name of the local host
-# rhost_ifname - Interface name of the remote host
-#
-#-----------------------------------------------------------------------
-do_setup()
-{
- TCID=route6-change-if
- TST_COUNT=0
-
- # Get the number of the test links
- link_total=`echo $LHOST_HWADDRS | wc -w`
- rhost_link_total=`echo $RHOST_HWADDRS | wc -w`
- if [ $link_total -ne $rhost_link_total ]; then
- tst_resm TBROK "The number of element in LHOST_HWADDRS differs from RHOST_HWADDRS"
- exit $TST_TOTAL
- fi
- if [ $link_total -lt 2 ]; then
- tst_resm TBROK "This test case requires plural Test Links"
- exit $TST_TOTAL
- fi
-
- lhost_ifname_array=""
- rhost_ifname_array=""
- link_num=0
- while [ $link_num -lt $link_total ]; do
- # Get the Interface names of the local host
- lhost_ifname=`get_ifname lhost ${link_num}`
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to get the interface name at the local host"
- exit $TST_TOTAL
- fi
- lhost_ifname_array="$lhost_ifname_array $lhost_ifname"
-
- # Get the Interface names of the remote host
- rhost_ifname=`get_ifname rhost ${link_num}`
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to get the interface name at the remote host"
- exit $TST_TOTAL
- fi
- rhost_ifname_array="$rhost_ifname_array $rhost_ifname"
-
- # Initialize the interfaces of the remote host
- initialize_if rhost ${link_num}
-
- # Set IPv6 address to the interface of the remote host
- add_ipv6addr rhost ${link_num} "${IPV6_NETWORK_PRE}:${link_num}" ${RHOST_IPV6_HOST}
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to assign IP address to the interface $rhost_ifname at the remote host"
- exit $TST_TOTAL
- fi
-
- link_num=`expr $link_num + 1`
- done
-}
-
-
-#-----------------------------------------------------------------------
-#
-# NAME:
-# do_cleanup
-#
-# DESCRIPTION:
-# Recover the tested interfaces
-#
-#-----------------------------------------------------------------------
-do_cleanup()
-{
- # Make sure to kill the udp datagram sender
- killall -SIGHUP ns-udpsender >/dev/null 2>&1
-
- # Initialize the interfaces
- link_num=0
- while [ $link_num -lt $link_total ]; do
- initialize_if lhost ${link_num}
- initialize_if rhost ${link_num}
- link_num=`expr $link_num + 1`
- done
-}
-
-
-#-----------------------------------------------------------------------
-#
-# FUNCTION:
-# test_body
-#
-# DESCRIPTION:
-# main code of the test
-#
-# Arguments:
-# $1: define the test type
-# 1 - route command case
-# 2 - ip command case
-#
-#-----------------------------------------------------------------------
-test_body()
-{
- test_type=$1
-
- TCID=route6-change-if0${test_type}
- TST_COUNT=$test_type
-
- case $test_type in
- 1)
- test_command="route"
- ;;
- 2)
- test_command="ip"
- ;;
- *)
- tst_resm TBROK "unspecified case"
- return 1
- ;;
- esac
-
- tst_resm TINFO "Verify the kernel is not crashed when the interface of an IPv6 route is changed frequently by $test_command command in $NS_TIMES times"
-
- link_num=0
- while [ $link_num -lt $link_total ]; do
- # Initialize the interface of the local host
- initialize_if lhost ${link_num}
-
- # Assign IPv6 address to the interface of the local host
- add_ipv6addr lhost ${link_num} "${IPV6_NETWORK_PRE}:${link_num}" ${LHOST_IPV6_HOST}
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Failed to assign an IPv6 address at the local host"
- return 1
- fi
-
- # Check the connectivity to the gateway
- field=`expr $link_num + 1`
- lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field`
- check_icmpv6_connectivity $lhost_ifname "${IPV6_NETWORK_PRE}:${link_num}:${LHOST_IPV6_HOST}"
- if [ $? -ne 0 ]; then
- tst_resm TBROK "Test Link $link_num is somthing wrong."
- return 1
- fi
- link_num=`expr $link_num + 1`
- done
-
- # Set the variables regarding the destination host
- dst_addr=${DST_NETWORK}:${DST_HOST}
- dst_network=${DST_NETWORK}::
-
- # Set the first route
- link_num=0
- field=`expr $link_num + 1`
- lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field`
- gateway="${IPV6_NETWORK_PRE}:${link_num}:${RHOST_IPV6_HOST}"
- case $test_type in
- 1)
- route -A inet6 add ${dst_network}/64 gw $gateway dev $lhost_ifname
- ;;
- 2)
- ip -f inet6 route add ${dst_network}/64 via $gateway dev $lhost_ifname
- ;;
- esac
-
- # Load the route with UDP traffic
- ns-udpsender -f 6 -D $dst_addr -p $DST_PORT -b -s 1452
- if [ $? -ne 0 ]; then
- tst_resm TFAIL "Failed to run a UDP datagram sender"
- return 1
- fi
-
- # Loop for changing the route
- cnt=0
- while [ $cnt -lt $NS_TIMES ]; do
- link_num=`expr $link_num + 1`
- if [ $link_num -ge $link_total ]; then
- link_num=0
- fi
-
- pre_lhost_ifname=$lhost_ifname
- pre_gateway=$gateway
-
- field=`expr $link_num + 1`
- lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field`
- gateway="${IPV6_NETWORK_PRE}:${link_num}:${RHOST_IPV6_HOST}"
-
- case $test_type in
- 1)
- route -A inet6 add ${dst_network}/64 gw $gateway dev $lhost_ifname
- route -A inet6 del ${dst_network}/64 gw $pre_gateway dev $pre_lhost_ifname
- ;;
- 2)
- ip -f inet6 route add ${dst_network}/64 via $gateway dev $lhost_ifname
- ip -f inet6 route del ${dst_network}/64 via $pre_gateway dev $pre_lhost_ifname
- ;;
- esac
- if [ $? -ne 0 ]; then
- tst_resm TFAIL "Failed to change the gateway to $gateway"
- return 1
- fi
-
- # Rerun if udp datagram sender is dead
- ps auxw | fgrep -v grep | grep ns-udpsender > /dev/null
- if [ $? -ne 0 ]; then
- ns-udpsender -f 6 -D $dst_addr -p $DST_PORT -b -s 1452
- if [ $? -ne 0 ]; then
- tst_resm TFAIL "Failed to run a UDP datagram sender"
- return 1
- fi
- fi
-
- cnt=`expr $cnt + 1`
- done
-
- # Kill the udp datagram sender
- killall -SIGHUP ns-udpsender
-
- tst_resm TPASS "Test is finished correctly."
- return 0
-}
-
-
-#-----------------------------------------------------------------------
-#
-# Main
-#
-# Exit Value:
-# The number of the failure
-#
-#-----------------------------------------------------------------------
-
-RC=0
-do_setup
-test_body 1 || RC=`expr $RC + 1` # Case of route command
-test_body 2 || RC=`expr $RC + 1` # Case of ip command
-do_cleanup
-
-exit $RC
--
2.23.0