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