xref: /freebsd/crypto/openssh/regress/cfgmatch.sh (revision 39ee7a7a6bdd1557b1c3532abf60d139798ac88b)
1#	$OpenBSD: cfgmatch.sh,v 1.8 2013/05/17 00:37:40 dtucker Exp $
2#	Placed in the Public Domain.
3
4tid="sshd_config match"
5
6pidfile=$OBJ/remote_pid
7fwdport=3301
8fwd="-L $fwdport:127.0.0.1:$PORT"
9
10echo "ExitOnForwardFailure=yes" >> $OBJ/ssh_config
11echo "ExitOnForwardFailure=yes" >> $OBJ/ssh_proxy
12
13start_client()
14{
15	rm -f $pidfile
16	${SSH} -q -$p $fwd "$@" somehost \
17	    exec sh -c \'"echo \$\$ > $pidfile; exec sleep 100"\' \
18	    >>$TEST_REGRESS_LOGFILE 2>&1 &
19	client_pid=$!
20	# Wait for remote end
21	n=0
22	while test ! -f $pidfile ; do
23		sleep 1
24		n=`expr $n + 1`
25		if test $n -gt 60; then
26			kill $client_pid
27			fatal "timeout waiting for background ssh"
28		fi
29	done
30}
31
32stop_client()
33{
34	pid=`cat $pidfile`
35	if [ ! -z "$pid" ]; then
36		kill $pid
37	fi
38	wait
39}
40
41cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak
42echo "PermitOpen 127.0.0.1:1" >>$OBJ/sshd_config
43echo "Match Address 127.0.0.1" >>$OBJ/sshd_config
44echo "PermitOpen 127.0.0.1:$PORT" >>$OBJ/sshd_config
45
46grep -v AuthorizedKeysFile $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy
47echo "AuthorizedKeysFile /dev/null" >>$OBJ/sshd_proxy
48echo "PermitOpen 127.0.0.1:1" >>$OBJ/sshd_proxy
49echo "Match user $USER" >>$OBJ/sshd_proxy
50echo "AuthorizedKeysFile /dev/null $OBJ/authorized_keys_%u" >>$OBJ/sshd_proxy
51echo "Match Address 127.0.0.1" >>$OBJ/sshd_proxy
52echo "PermitOpen 127.0.0.1:$PORT" >>$OBJ/sshd_proxy
53
54start_sshd
55
56#set -x
57
58# Test Match + PermitOpen in sshd_config.  This should be permitted
59for p in 1 2; do
60	trace "match permitopen localhost proto $p"
61	start_client -F $OBJ/ssh_config
62	${SSH} -q -$p -p $fwdport -F $OBJ/ssh_config somehost true || \
63	    fail "match permitopen permit proto $p"
64	stop_client
65done
66
67# Same but from different source.  This should not be permitted
68for p in 1 2; do
69	trace "match permitopen proxy proto $p"
70	start_client -F $OBJ/ssh_proxy
71	${SSH} -q -$p -p $fwdport -F $OBJ/ssh_config somehost true && \
72	    fail "match permitopen deny proto $p"
73	stop_client
74done
75
76# Retry previous with key option, should also be denied.
77printf 'permitopen="127.0.0.1:'$PORT'" ' >$OBJ/authorized_keys_$USER
78cat $OBJ/rsa.pub >> $OBJ/authorized_keys_$USER
79printf 'permitopen="127.0.0.1:'$PORT'" ' >>$OBJ/authorized_keys_$USER
80cat $OBJ/rsa1.pub >> $OBJ/authorized_keys_$USER
81for p in 1 2; do
82	trace "match permitopen proxy w/key opts proto $p"
83	start_client -F $OBJ/ssh_proxy
84	${SSH} -q -$p -p $fwdport -F $OBJ/ssh_config somehost true && \
85	    fail "match permitopen deny w/key opt proto $p"
86	stop_client
87done
88
89# Test both sshd_config and key options permitting the same dst/port pair.
90# Should be permitted.
91for p in 1 2; do
92	trace "match permitopen localhost proto $p"
93	start_client -F $OBJ/ssh_config
94	${SSH} -q -$p -p $fwdport -F $OBJ/ssh_config somehost true || \
95	    fail "match permitopen permit proto $p"
96	stop_client
97done
98
99cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
100echo "PermitOpen 127.0.0.1:1 127.0.0.1:$PORT 127.0.0.2:2" >>$OBJ/sshd_proxy
101echo "Match User $USER" >>$OBJ/sshd_proxy
102echo "PermitOpen 127.0.0.1:1 127.0.0.1:2" >>$OBJ/sshd_proxy
103
104# Test that a Match overrides a PermitOpen in the global section
105for p in 1 2; do
106	trace "match permitopen proxy w/key opts proto $p"
107	start_client -F $OBJ/ssh_proxy
108	${SSH} -q -$p -p $fwdport -F $OBJ/ssh_config somehost true && \
109	    fail "match override permitopen proto $p"
110	stop_client
111done
112
113cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
114echo "PermitOpen 127.0.0.1:1 127.0.0.1:$PORT 127.0.0.2:2" >>$OBJ/sshd_proxy
115echo "Match User NoSuchUser" >>$OBJ/sshd_proxy
116echo "PermitOpen 127.0.0.1:1 127.0.0.1:2" >>$OBJ/sshd_proxy
117
118# Test that a rule that doesn't match doesn't override, plus test a
119# PermitOpen entry that's not at the start of the list
120for p in 1 2; do
121	trace "nomatch permitopen proxy w/key opts proto $p"
122	start_client -F $OBJ/ssh_proxy
123	${SSH} -q -$p -p $fwdport -F $OBJ/ssh_config somehost true || \
124	    fail "nomatch override permitopen proto $p"
125	stop_client
126done
127