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- #!/bin/sh
- # SPDX-License-Identifier: GPL-2.0-or-later
- # Copyright (c) 2006 International Business Machines Corp.
- # Copyright (c) 2020 Joerg Vehlow <joerg.vehlow@aox-tech.de>
- # Author: Mitsuru Chinen <mitch@jp.ibm.com>
- #
- # Verify that the kernel is not crashed when joining multiple multicast
- # groups on separate sockets, then receiving a large number of UDP
- # packets at each socket
- TST_NEEDS_ROOT=1
- TST_NEEDS_TMPDIR=1
- TST_SETUP="mcast_setup_normal_udp"
- TST_CLEANUP="mcast_cleanup"
- TST_TESTFUNC="do_test"
- . mcast-lib.sh
- do_test()
- {
- tst_res TINFO "joining $MCASTNUM_NORMAL IPv${TST_IPVER} multicast groups on separate sockets, then receiving a large number of UDP packets at each socket in $NS_DURATION seconds"
- local addr port
- local n=0
- while [ $n -lt $MCASTNUM_NORMAL ]; do
- # Define the multicast address
- if [ "$TST_IPV6" ]; then
- local n_hex=$(printf "%x" $n)
- addr=${MCAST_IPV6_ADDR_PREFIX}:${n_hex}
- else
- local x=$((n / 254))
- local y=$((n % 254 + 1))
- addr=${MCAST_IPV4_ADDR_PREFIX}.${x}.${y}
- fi
- port=$(tst_get_unused_port ipv${TST_IPVER} dgram)
- [ $? -ne 0 ] && tst_brk TBROK "no free udp port available"
- # Run a receiver
- ROD $MCAST_LCMD -f $TST_IPVER -I $(tst_iface lhost) -m $addr -p $port -b
- # Run a sender
- tst_rhost_run -s -c "$MCAST_RCMD -D $addr -f $TST_IPVER -p $port -m -I $(tst_iface rhost) -b -t $NS_DURATION"
- n=$((n+1))
- done
- sleep $NS_DURATION
- tst_res TPASS "test finished successfully"
- }
- tst_run
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