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upstream: permitlisten/PermitListen unit test from Markus
OpenBSD-Regress-ID: ab12eb42f0e14926980441cf7c058a6d1d832ea5
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@ -1,4 +1,4 @@
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# $OpenBSD: Makefile,v 1.96 2017/10/24 19:33:32 millert Exp $
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# $OpenBSD: Makefile,v 1.97 2018/06/07 04:46:34 djm Exp $
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REGRESS_TARGETS= unit t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t-exec
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REGRESS_TARGETS= unit t1 t2 t3 t4 t5 t6 t7 t8 t9 t10 t11 t12 t-exec
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tests: prep $(REGRESS_TARGETS)
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tests: prep $(REGRESS_TARGETS)
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@ -61,6 +61,7 @@ LTESTS= connect \
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sshcfgparse \
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sshcfgparse \
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cfgparse \
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cfgparse \
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cfgmatch \
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cfgmatch \
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cfgmatchlisten \
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addrmatch \
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addrmatch \
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localcommand \
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localcommand \
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forcecommand \
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forcecommand \
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165
regress/cfgmatchlisten.sh
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165
regress/cfgmatchlisten.sh
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# $OpenBSD: cfgmatchlisten.sh,v 1.1 2018/06/07 04:46:34 djm Exp $
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# Placed in the Public Domain.
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tid="sshd_config matchlisten"
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pidfile=$OBJ/remote_pid
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fwdport=3301
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fwdspec="localhost:${fwdport}"
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fwd="-R $fwdport:127.0.0.1:$PORT"
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echo "ExitOnForwardFailure=yes" >> $OBJ/ssh_config
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echo "ExitOnForwardFailure=yes" >> $OBJ/ssh_proxy
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start_client()
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{
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rm -f $pidfile
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${SSH} -vvv $fwd "$@" somehost true >>$TEST_REGRESS_LOGFILE 2>&1
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r=$?
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if [ $r -ne 0 ]; then
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return $r
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fi
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${SSH} -vvv $fwd "$@" somehost \
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exec sh -c \'"echo \$\$ > $pidfile; exec sleep 100"\' &
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>>$TEST_REGRESS_LOGFILE 2>&1 &
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client_pid=$!
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# Wait for remote end
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n=0
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while test ! -f $pidfile ; do
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sleep 1
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n=`expr $n + 1`
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if test $n -gt 5; then
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kill $client_pid
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fatal "timeout waiting for background ssh"
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fi
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done
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return $r
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}
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expect_client_ok()
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{
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start_client "$@" ||
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fail "client did not start"
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}
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expect_client_fail()
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{
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local failmsg="$1"
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shift
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start_client "$@" &&
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fail $failmsg
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}
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stop_client()
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{
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pid=`cat $pidfile`
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if [ ! -z "$pid" ]; then
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kill $pid
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fi
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wait
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}
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cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak
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echo "PermitListen 127.0.0.1:1" >>$OBJ/sshd_config
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echo "Match Address 127.0.0.1" >>$OBJ/sshd_config
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echo "PermitListen 127.0.0.1:2 127.0.0.1:3 $fwdspec" >>$OBJ/sshd_config
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grep -v AuthorizedKeysFile $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy
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echo "AuthorizedKeysFile /dev/null" >>$OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1" >>$OBJ/sshd_proxy
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echo "Match user $USER" >>$OBJ/sshd_proxy
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echo "AuthorizedKeysFile /dev/null $OBJ/authorized_keys_%u" >>$OBJ/sshd_proxy
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echo "Match Address 127.0.0.1" >>$OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:2 127.0.0.1:3 $fwdspec" >>$OBJ/sshd_proxy
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start_sshd
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#set -x
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# Test Match + PermitListen in sshd_config. This should be permitted
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trace "match permitlisten localhost"
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expect_client_ok -F $OBJ/ssh_config
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${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
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fail "match permitlisten permit"
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stop_client
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# Same but from different source. This should not be permitted
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trace "match permitlisten proxy"
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expect_client_fail "match permitlisten deny" \
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-F $OBJ/ssh_proxy
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# Retry previous with key option, should also be denied.
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cp /dev/null $OBJ/authorized_keys_$USER
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for t in ${SSH_KEYTYPES}; do
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printf 'permitlisten="'$fwdspec'" ' >> $OBJ/authorized_keys_$USER
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cat $OBJ/$t.pub >> $OBJ/authorized_keys_$USER
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done
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trace "match permitlisten proxy w/key opts"
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expect_client_fail "match permitlisten deny w/key opt"\
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-F $OBJ/ssh_proxy
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# Test both sshd_config and key options permitting the same dst/port pair.
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# Should be permitted.
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trace "match permitlisten localhost"
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expect_client_ok -F $OBJ/ssh_config
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${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
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fail "match permitlisten permit"
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stop_client
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cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1 $fwdspec 127.0.0.2:2" >>$OBJ/sshd_proxy
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echo "Match User $USER" >>$OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1 127.0.0.1:2" >>$OBJ/sshd_proxy
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# Test that a Match overrides a PermitListen in the global section
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trace "match permitlisten proxy w/key opts"
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expect_client_fail "match override permitlisten" \
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-F $OBJ/ssh_proxy
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cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1 $fwdspec 127.0.0.2:2" >>$OBJ/sshd_proxy
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echo "Match User NoSuchUser" >>$OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1 127.0.0.1:2" >>$OBJ/sshd_proxy
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# Test that a rule that doesn't match doesn't override, plus test a
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# PermitListen entry that's not at the start of the list
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trace "nomatch permitlisten proxy w/key opts"
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expect_client_ok -F $OBJ/ssh_proxy
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${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
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fail "nomatch override permitlisten"
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stop_client
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# bind to 127.0.0.1 instead of default localhost
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fwdspec2="127.0.0.1:${fwdport}"
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fwd="-R ${fwdspec2}:127.0.0.1:$PORT"
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# first try w/ old fwdspec both in server config and key opts
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cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1 $fwdspec 127.0.0.2:2" >>$OBJ/sshd_proxy
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cp /dev/null $OBJ/authorized_keys_$USER
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for t in ${SSH_KEYTYPES}; do
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printf 'permitlisten="'$fwdspec'" ' >> $OBJ/authorized_keys_$USER
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cat $OBJ/$t.pub >> $OBJ/authorized_keys_$USER
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done
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trace "nomatch permitlisten 127.0.0.1 server config and userkey"
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expect_client_fail "nomatch 127.0.0.1 server config and userkey" \
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-F $OBJ/ssh_config
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# correct server config, denied by key opts
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cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
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echo "PermitListen 127.0.0.1:1 ${fwdspec2} 127.0.0.2:2" >>$OBJ/sshd_proxy
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trace "nomatch permitlisten 127.0.0.1 w/key opts"
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expect_client_fail "nomatch 127.0.0.1 w/key otps" \
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-F $OBJ/ssh_config
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# fix key opts
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cp /dev/null $OBJ/authorized_keys_$USER
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for t in ${SSH_KEYTYPES}; do
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printf 'permitlisten="'$fwdspec2'" ' >> $OBJ/authorized_keys_$USER
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cat $OBJ/$t.pub >> $OBJ/authorized_keys_$USER
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done
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trace "match permitlisten 127.0.0.1 server config w/key opts"
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expect_client_ok -F $OBJ/ssh_proxy
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${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
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fail "match 127.0.0.1 server config w/key opts"
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stop_client
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