1 # $OpenBSD: cfgmatch.sh,v 1.11 2017/10/04 18:50:23 djm Exp $
2 # Placed in the Public Domain.
4 tid="sshd_config match"
6 pidfile=$OBJ/remote_pid
8 fwd="-L $fwdport:127.0.0.1:$PORT"
10 echo "ExitOnForwardFailure=yes" >> $OBJ/ssh_config
11 echo "ExitOnForwardFailure=yes" >> $OBJ/ssh_proxy
16 ${SSH} -q $fwd "$@" somehost \
17 exec sh -c \'"echo \$\$ > $pidfile; exec sleep 100"\' \
18 >>$TEST_REGRESS_LOGFILE 2>&1 &
22 while test ! -f $pidfile ; do
25 if test $n -gt 60; then
27 fatal "timeout waiting for background ssh"
35 if [ ! -z "$pid" ]; then
41 cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak
42 echo "PermitOpen 127.0.0.1:1" >>$OBJ/sshd_config
43 echo "Match Address 127.0.0.1" >>$OBJ/sshd_config
44 echo "PermitOpen 127.0.0.1:2 127.0.0.1:3 127.0.0.1:$PORT" >>$OBJ/sshd_config
46 grep -v AuthorizedKeysFile $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy
47 echo "AuthorizedKeysFile /dev/null" >>$OBJ/sshd_proxy
48 echo "PermitOpen 127.0.0.1:1" >>$OBJ/sshd_proxy
49 echo "Match user $USER" >>$OBJ/sshd_proxy
50 echo "AuthorizedKeysFile /dev/null $OBJ/authorized_keys_%u" >>$OBJ/sshd_proxy
51 echo "Match Address 127.0.0.1" >>$OBJ/sshd_proxy
52 echo "PermitOpen 127.0.0.1:2 127.0.0.1:3 127.0.0.1:$PORT" >>$OBJ/sshd_proxy
58 # Test Match + PermitOpen in sshd_config. This should be permitted
59 trace "match permitopen localhost"
60 start_client -F $OBJ/ssh_config
61 ${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
62 fail "match permitopen permit"
65 # Same but from different source. This should not be permitted
66 trace "match permitopen proxy"
67 start_client -F $OBJ/ssh_proxy
68 ${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true && \
69 fail "match permitopen deny"
72 # Retry previous with key option, should also be denied.
73 cp /dev/null $OBJ/authorized_keys_$USER
74 for t in ${SSH_KEYTYPES}; do
75 printf 'permitopen="127.0.0.1:'$PORT'" ' >> $OBJ/authorized_keys_$USER
76 cat $OBJ/$t.pub >> $OBJ/authorized_keys_$USER
78 trace "match permitopen proxy w/key opts"
79 start_client -F $OBJ/ssh_proxy
80 ${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true && \
81 fail "match permitopen deny w/key opt"
84 # Test both sshd_config and key options permitting the same dst/port pair.
85 # Should be permitted.
86 trace "match permitopen localhost"
87 start_client -F $OBJ/ssh_config
88 ${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
89 fail "match permitopen permit"
92 cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
93 echo "PermitOpen 127.0.0.1:1 127.0.0.1:$PORT 127.0.0.2:2" >>$OBJ/sshd_proxy
94 echo "Match User $USER" >>$OBJ/sshd_proxy
95 echo "PermitOpen 127.0.0.1:1 127.0.0.1:2" >>$OBJ/sshd_proxy
97 # Test that a Match overrides a PermitOpen in the global section
98 trace "match permitopen proxy w/key opts"
99 start_client -F $OBJ/ssh_proxy
100 ${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true && \
101 fail "match override permitopen"
104 cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
105 echo "PermitOpen 127.0.0.1:1 127.0.0.1:$PORT 127.0.0.2:2" >>$OBJ/sshd_proxy
106 echo "Match User NoSuchUser" >>$OBJ/sshd_proxy
107 echo "PermitOpen 127.0.0.1:1 127.0.0.1:2" >>$OBJ/sshd_proxy
109 # Test that a rule that doesn't match doesn't override, plus test a
110 # PermitOpen entry that's not at the start of the list
111 trace "nomatch permitopen proxy w/key opts"
112 start_client -F $OBJ/ssh_proxy
113 ${SSH} -q -p $fwdport -F $OBJ/ssh_config somehost true || \
114 fail "nomatch override permitopen"