97 lines
2.5 KiB
Bash
Executable file
97 lines
2.5 KiB
Bash
Executable file
#!/bin/bash
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#
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# Copyright (C) 2017 Masatake YAMATO <yamato@redhat.com>
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#
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# This file is part of util-linux.
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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TS_TOPDIR="${0%/*}/../.."
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TS_DESC="NETNSID compare to ip-link"
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. "$TS_TOPDIR"/functions.sh
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ts_init "$*"
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ts_check_test_command "$TS_CMD_LSNS"
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ts_check_prog "ip"
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ts_check_prog "dd"
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ts_check_prog "mkfifo"
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ts_check_prog "sed"
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ts_skip_nonroot
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grep -q '#define HAVE_LINUX_NET_NAMESPACE_H' ${top_builddir}/config.h || ts_skip "no netns support"
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ts_cd "$TS_OUTDIR"
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vetha=lsns-vetha
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vethb=lsns-vethb
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NS=LSNS-TEST-NETNSID-NS
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FIFO=$TS_OUTDIR/FIFO-NETNSID
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NULL=/dev/null
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LOG=/dev/null #/root/foo.log
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function cleanup {
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ip link delete $vetha 2> $NULL || :
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ip netns delete $NS 2> $NULL || :
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rm -f $FIFO
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}
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echo "==Cleanup" >> $LOG
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cleanup
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echo "==Create FIFO" >> $LOG
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mkfifo $FIFO
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echo "==Netns ADD" >> $LOG
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if ip netns add $NS &&
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ip link add name $vetha type veth peer name $vethb &&
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ip link set $vethb netns $NS &&
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! (ip -o link show dev $vetha 2>&1 >$NULL | grep 'Cannot talk to rtnetlink' > $NULL); then
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echo "===Netns EXEC" >> $LOG
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ip netns exec $NS dd if=$FIFO bs=1 count=2 of=$NULL 2> $NULL &
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PID=$!
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echo "====PID=$PID" >> $LOG
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else
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cleanup
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ts_skip "failed to initialize"
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fi
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{
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echo "==Write to FIFO" >> $LOG
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dd if=/dev/zero bs=1 count=1 2> $NULL
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{
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echo "===IP output" >> $LOG
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ip -o link show dev $vetha >> $LOG
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IP_ID=$(ip -o link show dev $vetha | sed -ne 's/.* *link-netnsid *\([0-9]*\)/\1/p')
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echo "====ip show: IP_ID=$IP_ID" >> $LOG
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if [ "x$IP_ID" = "x" ]; then
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echo "===IP output list id" >> $LOG
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ip netns list-id >> $LOG
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IP_ID=$(ip netns list-id | awk "/name: $NS/ { print \$2 }")
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echo "====ip list-id: IP_ID=$IP_ID" >> $LOG
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fi
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echo "===LSNS output" >> $LOG
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$TS_CMD_LSNS -o+NETNSID,NSFS --type net >> $LOG
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LSNS_ID=$($TS_CMD_LSNS -n -o NETNSID --type net --task $PID | { read VAL; echo $VAL; } )
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echo "===LSNS_ID=$LSNS_ID" >> $LOG
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}
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dd if=/dev/zero bs=1 count=1 2> $NULL
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} > $FIFO
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test "$IP_ID" = "$LSNS_ID"
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echo $? >> $TS_OUTPUT
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cleanup
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ts_finalize
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