blob: f187b675720142a9f235536478074b093e56e8d1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
# $OpenBSD: agent.sh,v 1.20 2021/02/25 03:27:34 djm Exp $
# Placed in the Public Domain.
tid="simple agent test"
SSH_AUTH_SOCK=/nonexistent ${SSHADD} -l > /dev/null 2>&1
if [ $? -ne 2 ]; then
fail "ssh-add -l did not fail with exit code 2"
fi
trace "start agent, args ${EXTRA_AGENT_ARGS} -s"
eval `${SSHAGENT} ${EXTRA_AGENT_ARGS} -s` > /dev/null
r=$?
if [ $r -ne 0 ]; then
fatal "could not start ssh-agent: exit code $r"
fi
eval `${SSHAGENT} ${EXTRA_AGENT_ARGS} -s | sed 's/SSH_/FW_SSH_/g'` > /dev/null
r=$?
if [ $r -ne 0 ]; then
fatal "could not start second ssh-agent: exit code $r"
fi
${SSHADD} -l > /dev/null 2>&1
if [ $? -ne 1 ]; then
fail "ssh-add -l did not fail with exit code 1"
fi
rm -f $OBJ/user_ca_key $OBJ/user_ca_key.pub
${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key \
|| fatal "ssh-keygen failed"
trace "overwrite authorized keys"
printf '' > $OBJ/authorized_keys_$USER
for t in ${SSH_KEYTYPES}; do
# generate user key for agent
rm -f $OBJ/$t-agent $OBJ/$t-agent.pub*
${SSHKEYGEN} -q -N '' -t $t -f $OBJ/$t-agent ||\
fatal "ssh-keygen for $t-agent failed"
# Make a certificate for each too.
${SSHKEYGEN} -qs $OBJ/user_ca_key -I "$t cert" \
-n estragon $OBJ/$t-agent.pub || fatal "ca sign failed"
# add to authorized keys
cat $OBJ/$t-agent.pub >> $OBJ/authorized_keys_$USER
# add private key to agent
${SSHADD} $OBJ/$t-agent > /dev/null 2>&1
if [ $? -ne 0 ]; then
fail "ssh-add failed exit code $?"
fi
# add private key to second agent
SSH_AUTH_SOCK=$FW_SSH_AUTH_SOCK ${SSHADD} $OBJ/$t-agent > /dev/null 2>&1
if [ $? -ne 0 ]; then
fail "ssh-add failed exit code $?"
fi
# Move private key to ensure that we aren't accidentally using it.
# Keep the corresponding public keys/certs around for later use.
mv -f $OBJ/$t-agent $OBJ/$t-agent-private
cp -f $OBJ/$t-agent.pub $OBJ/$t-agent-private.pub
cp -f $OBJ/$t-agent-cert.pub $OBJ/$t-agent-private-cert.pub
done
# Remove explicit identity directives from ssh_proxy
mv $OBJ/ssh_proxy $OBJ/ssh_proxy_bak
grep -vi identityfile $OBJ/ssh_proxy_bak > $OBJ/ssh_proxy
${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l failed: exit code $r"
fi
# the same for full pubkey output
${SSHADD} -L > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -L failed: exit code $r"
fi
trace "simple connect via agent"
${SSH} -F $OBJ/ssh_proxy somehost exit 52
r=$?
if [ $r -ne 52 ]; then
fail "ssh connect with failed (exit code $r)"
fi
for t in ${SSH_KEYTYPES}; do
trace "connect via agent using $t key"
if [ "$t" = "ssh-dss" ]; then
echo "PubkeyAcceptedAlgorithms +ssh-dss" >> $OBJ/ssh_proxy
echo "PubkeyAcceptedAlgorithms +ssh-dss" >> $OBJ/sshd_proxy
fi
${SSH} -F $OBJ/ssh_proxy -i $OBJ/$t-agent.pub -oIdentitiesOnly=yes \
somehost exit 52
r=$?
if [ $r -ne 52 ]; then
fail "ssh connect with failed (exit code $r)"
fi
done
trace "agent forwarding"
${SSH} -A -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l via agent fwd failed (exit code $r)"
fi
${SSH} "-oForwardAgent=$SSH_AUTH_SOCK" -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l via agent path fwd failed (exit code $r)"
fi
${SSH} -A -F $OBJ/ssh_proxy somehost \
"${SSH} -F $OBJ/ssh_proxy somehost exit 52"
r=$?
if [ $r -ne 52 ]; then
fail "agent fwd failed (exit code $r)"
fi
trace "agent forwarding different agent"
${SSH} "-oForwardAgent=$FW_SSH_AUTH_SOCK" -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l via agent path fwd of different agent failed (exit code $r)"
fi
${SSH} '-oForwardAgent=$FW_SSH_AUTH_SOCK' -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l via agent path env fwd of different agent failed (exit code $r)"
fi
# Remove keys from forwarded agent, ssh-add on remote machine should now fail.
SSH_AUTH_SOCK=$FW_SSH_AUTH_SOCK ${SSHADD} -D > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -D failed: exit code $r"
fi
${SSH} '-oForwardAgent=$FW_SSH_AUTH_SOCK' -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 1 ]; then
fail "ssh-add -l with different agent did not fail with exit code 1 (exit code $r)"
fi
(printf 'cert-authority,principals="estragon" '; cat $OBJ/user_ca_key.pub) \
> $OBJ/authorized_keys_$USER
for t in ${SSH_KEYTYPES}; do
if [ "$t" != "ssh-dss" ]; then
trace "connect via agent using $t key"
${SSH} -F $OBJ/ssh_proxy -i $OBJ/$t-agent.pub \
-oCertificateFile=$OBJ/$t-agent-cert.pub \
-oIdentitiesOnly=yes somehost exit 52
r=$?
if [ $r -ne 52 ]; then
fail "ssh connect with failed (exit code $r)"
fi
fi
done
## Deletion tests.
trace "delete all agent keys"
${SSHADD} -D > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -D failed: exit code $r"
fi
# make sure they're gone
${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 1 ]; then
fail "ssh-add -l returned unexpected exit code: $r"
fi
trace "readd keys"
# re-add keys/certs to agent
for t in ${SSH_KEYTYPES}; do
${SSHADD} $OBJ/$t-agent-private >/dev/null 2>&1 || \
fail "ssh-add failed exit code $?"
done
# make sure they are there
${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l failed: exit code $r"
fi
check_key_absent() {
${SSHADD} -L | grep "^$1 " >/dev/null
if [ $? -eq 0 ]; then
fail "$1 key unexpectedly present"
fi
}
check_key_present() {
${SSHADD} -L | grep "^$1 " >/dev/null
if [ $? -ne 0 ]; then
fail "$1 key missing from agent"
fi
}
# delete the ed25519 key
trace "delete single key by file"
${SSHADD} -qdk $OBJ/ssh-ed25519-agent || fail "ssh-add -d ed25519 failed"
check_key_absent ssh-ed25519
check_key_present ssh-ed25519-cert-v01@openssh.com
# Put key/cert back.
${SSHADD} $OBJ/ssh-ed25519-agent-private >/dev/null 2>&1 || \
fail "ssh-add failed exit code $?"
check_key_present ssh-ed25519
# Delete both key and certificate.
trace "delete key/cert by file"
${SSHADD} -qd $OBJ/ssh-ed25519-agent || fail "ssh-add -d ed25519 failed"
check_key_absent ssh-ed25519
check_key_absent ssh-ed25519-cert-v01@openssh.com
# Put key/cert back.
${SSHADD} $OBJ/ssh-ed25519-agent-private >/dev/null 2>&1 || \
fail "ssh-add failed exit code $?"
check_key_present ssh-ed25519
# Delete certificate via stdin
${SSHADD} -qd - < $OBJ/ssh-ed25519-agent-cert.pub || fail "ssh-add -d - failed"
check_key_present ssh-ed25519
check_key_absent ssh-ed25519-cert-v01@openssh.com
# Delete key via stdin
${SSHADD} -qd - < $OBJ/ssh-ed25519-agent.pub || fail "ssh-add -d - failed"
check_key_absent ssh-ed25519
check_key_absent ssh-ed25519-cert-v01@openssh.com
trace "kill agent"
${SSHAGENT} -k > /dev/null
SSH_AGENT_PID=$FW_SSH_AGENT_PID ${SSHAGENT} -k > /dev/null
|
