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- Committer: Teddy Hogeborn
- Date: 2018-02-22 14:34:19 UTC
- Revision ID: teddy@recompile.se-20180222143419-4uh4vcpgc9hv2fzx
Check return values from newly added close() calls
* plugins.d/mandos-client.c (init_gnutls_global): Check return
values from newly added close() calls.
* plugins.d/mandos-client.c (init_gnutls_global): Check return
values from newly added close() calls.
- files added:
- .bzr-builddeb
- debian
- debian/po
- debian/source
- debian/upstream
- network-hooks.d
- plugin-helpers
- files removed:
- network-protocol.txt
- files renamed:
- mandos-client.c => plugin-runner.c
- mandos-client.xml => plugin-runner.xml
- plugins.d/password-request.c => plugins.d/mandos-client.c
- plugins.d/password-request.xml => plugins.d/mandos-client.xml
- files modified:
- Makefile
added
removed
mandos-keygen
1
#!/bin/sh
2
#
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# Mandos key generator - create new OpenPGP keys for Mandos clients
4
#
5
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
6
#
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# This program is free software: you can redistribute it and/or modify
8
# it under the terms of the GNU General Public License as published by
1
#!/bin/sh -e
2
#
3
# Mandos key generator - create a new OpenPGP key for a Mandos client
4
#
5
# Copyright © 2008-2018 Teddy Hogeborn
6
# Copyright © 2008-2018 Björn Påhlsson
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#
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# This file is part of Mandos.
9
#
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# Mandos is free software: you can redistribute it and/or modify it
11
# under the terms of the GNU General Public License as published by
9
12
# the Free Software Foundation, either version 3 of the License, or
10
13
# (at your option) any later version.
11
14
#
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# This program is distributed in the hope that it will be useful,
13
# but WITHOUT ANY WARRANTY; without even the implied warranty of
15
# Mandos is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
14
17
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
18
# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
18
# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@fukt.bsnet.se>.
21
#
22
23
KEYDIR="/etc/mandos"
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KEYTYPE=DSA
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KEYLENGTH=1024
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KEYNAME="`hostname --fqdn`"
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# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
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#
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# Contact the authors at <mandos@recompile.se>.
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#
25
26
VERSION="1.7.18"
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28
KEYDIR="/etc/keys/mandos"
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KEYTYPE=RSA
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KEYLENGTH=4096
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SUBKEYTYPE=RSA
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SUBKEYLENGTH=4096
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KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
27
34
KEYEMAIL=""
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KEYCOMMENT="Mandos client key"
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KEYCOMMENT=""
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KEYEXPIRE=0
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37
FORCE=no
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SSH=yes
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KEYCOMMENT_ORIG="$KEYCOMMENT"
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mode=keygen
41
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if [ ! -d "$KEYDIR" ]; then
43
KEYDIR="/etc/mandos/keys"
44
fi
32
45
33
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# Parse options
34
TEMP=`getopt --options d:t:l:n:e:c:x:f \
35
--longoptions dir:,type:,length:,name:,email:,comment:,expire:,force \
47
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:fS \
48
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force,no-ssh \
36
49
--name "$0" -- "$@"`
37
50
51
help(){
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basename="`basename "$0"`"
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cat <<EOF
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Usage: $basename [ -v | --version ]
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$basename [ -h | --help ]
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Key creation:
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$basename [ OPTIONS ]
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Encrypted password creation:
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$basename { -p | --password } [ --name NAME ] [ --dir DIR]
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$basename { -F | --passfile } FILE [ --name NAME ] [ --dir DIR]
61
62
Key creation options:
63
-v, --version Show program's version number and exit
64
-h, --help Show this help message and exit
65
-d DIR, --dir DIR Target directory for key files
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-t TYPE, --type TYPE Key type. Default is RSA.
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-l BITS, --length BITS
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Key length in bits. Default is 4096.
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-s TYPE, --subtype TYPE
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Subkey type. Default is RSA.
71
-L BITS, --sublength BITS
72
Subkey length in bits. Default is 4096.
73
-n NAME, --name NAME Name of key. Default is the FQDN.
74
-e ADDRESS, --email ADDRESS
75
Email address of key. Default is empty.
76
-c TEXT, --comment TEXT
77
Comment field for key. The default is empty.
78
-x TIME, --expire TIME
79
Key expire time. Default is no expiration.
80
See gpg(1) for syntax.
81
-f, --force Force overwriting old key files.
82
83
Password creation options:
84
-p, --password Create an encrypted password using the key in
85
the key directory. All options other than
86
--dir and --name are ignored.
87
-F FILE, --passfile FILE
88
Encrypt a password from FILE using the key in
89
the key directory. All options other than
90
--dir and --name are ignored.
91
-S, --no-ssh Don't get SSH key or set "checker" option.
92
EOF
93
}
94
38
95
eval set -- "$TEMP"
39
96
while :; do
40
97
case "$1" in
98
-p|--password) mode=password; shift;;
99
-F|--passfile) mode=password; PASSFILE="$2"; shift 2;;
41
100
-d|--dir) KEYDIR="$2"; shift 2;;
42
101
-t|--type) KEYTYPE="$2"; shift 2;;
102
-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
43
103
-l|--length) KEYLENGTH="$2"; shift 2;;
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-L|--sublength) SUBKEYLENGTH="$2"; shift 2;;
44
105
-n|--name) KEYNAME="$2"; shift 2;;
45
106
-e|--email) KEYEMAIL="$2"; shift 2;;
46
107
-c|--comment) KEYCOMMENT="$2"; shift 2;;
47
-x|--expire) KEYCOMMENT="$2"; shift 2;;
108
-x|--expire) KEYEXPIRE="$2"; shift 2;;
48
109
-f|--force) FORCE=yes; shift;;
110
-S|--no-ssh) SSH=no; shift;;
111
-v|--version) echo "$0 $VERSION"; exit;;
112
-h|--help) help; exit;;
49
113
--) shift; break;;
50
114
*) echo "Internal error" >&2; exit 1;;
51
115
esac
52
116
done
53
117
if [ "$#" -gt 0 ]; then
54
echo "Unknown arguments: '$@'" >&2
118
echo "Unknown arguments: '$*'" >&2
55
119
exit 1
56
120
fi
57
121
59
123
PUBKEYFILE="$KEYDIR/pubkey.txt"
60
124
61
125
# Check for some invalid values
62
if [ -d "$KEYDIR" ]; then :; else
126
if [ ! -d "$KEYDIR" ]; then
63
127
echo "$KEYDIR not a directory" >&2
64
128
exit 1
65
129
fi
66
if [ -w "$KEYDIR" ]; then :; else
67
echo "Directory $KEYDIR not writeable" >&2
68
exit 1
69
fi
70
71
if [ -z "$KEYTYPE" ]; then
72
echo "Empty key type" >&2
73
exit 1
74
fi
75
76
if [ -z "$KEYNAME" ]; then
77
echo "Empty key name" >&2
78
exit 1
79
fi
80
81
if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
82
echo "Invalid key length" >&2
83
exit 1
84
fi
85
86
if [ -z "$KEYEXPIRE" ]; then
87
echo "Empty key expiration" >&2
88
exit 1
89
fi
90
91
# Make FORCE be 0 or 1
92
case "$FORCE" in
93
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
94
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
95
esac
96
97
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
98
&& [ "$FORCE" -eq 0 ]; then
99
echo "Refusing to overwrite old key files; use --force" >&2
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exit 1
101
fi
102
103
# Set lines for GPG batch file
104
if [ -n "$KEYCOMMENT" ]; then
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KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
106
fi
107
if [ -n "$KEYEMAIL" ]; then
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KEYEMAILLINE="Name-Email: $KEYEMAIL"
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fi
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# Create temp files
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BATCHFILE="`mktemp -t mandos-gpg-batch.XXXXXXXXXX`"
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SECRING="`mktemp -t mandos-gpg-secring.XXXXXXXXXX`"
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PUBRING="`mktemp -t mandos-gpg-pubring.XXXXXXXXXX`"
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trap "rm --force $PUBRING $BATCHFILE; shred --remove $SECRING" EXIT
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118
# Create batch file for GPG
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cat >"$BATCHFILE" <<EOF
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Key-Type: $KEYTYPE
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Key-Length: $KEYLENGTH
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#Key-Usage: encrypt,sign,auth
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Name-Real: $KEYNAME
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$KEYCOMMENTLINE
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$KEYEMAILLINE
126
Expire-Date: $KEYEXPIRE
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%pubring $PUBRING
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%secring $SECRING
129
%commit
130
EOF
131
132
umask 027
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gpg --no-random-seed-file --quiet --batch --no-tty \
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--no-default-keyring --no-options --batch \
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--secret-keyring "$SECRING" --keyring "$PUBRING" \
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--gen-key "$BATCHFILE"
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rm --force "$BATCHFILE"
138
139
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
140
2>/dev/null; then
141
shred --remove "$SECKEYFILE"
142
fi
143
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
144
2>/dev/null; then
145
rm --force "$PUBKEYFILE"
146
fi
147
148
FILECOMMENT="Mandos client key for $KEYNAME"
149
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
150
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
151
fi
152
153
if [ -n "$KEYEMAIL" ]; then
154
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
155
fi
156
157
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
158
--no-default-keyring --secret-keyring "$SECRING" \
159
--keyring "$PUBRING" --export-options export-minimal \
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--comment "$FILECOMMENT" --output "$SECKEYFILE" \
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--export-secret-keys
162
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
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--no-default-keyring --secret-keyring "$SECRING" \
164
--keyring "$PUBRING" --export-options export-minimal \
165
--comment "$FILECOMMENT" --output "$PUBKEYFILE" \
166
--export
130
if [ ! -r "$KEYDIR" ]; then
131
echo "Directory $KEYDIR not readable" >&2
132
exit 1
133
fi
134
135
if [ "$mode" = keygen ]; then
136
if [ ! -w "$KEYDIR" ]; then
137
echo "Directory $KEYDIR not writeable" >&2
138
exit 1
139
fi
140
if [ -z "$KEYTYPE" ]; then
141
echo "Empty key type" >&2
142
exit 1
143
fi
144
145
if [ -z "$KEYNAME" ]; then
146
echo "Empty key name" >&2
147
exit 1
148
fi
149
150
if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
151
echo "Invalid key length" >&2
152
exit 1
153
fi
154
155
if [ -z "$KEYEXPIRE" ]; then
156
echo "Empty key expiration" >&2
157
exit 1
158
fi
159
160
# Make FORCE be 0 or 1
161
case "$FORCE" in
162
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
163
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
164
esac
165
166
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
167
&& [ "$FORCE" -eq 0 ]; then
168
echo "Refusing to overwrite old key files; use --force" >&2
169
exit 1
170
fi
171
172
# Set lines for GnuPG batch file
173
if [ -n "$KEYCOMMENT" ]; then
174
KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
175
fi
176
if [ -n "$KEYEMAIL" ]; then
177
KEYEMAILLINE="Name-Email: $KEYEMAIL"
178
fi
179
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# Create temporary gpg batch file
181
BATCHFILE="`mktemp -t mandos-keygen-batch.XXXXXXXXXX`"
182
fi
183
184
if [ "$mode" = password ]; then
185
# Create temporary encrypted password file
186
SECFILE="`mktemp -t mandos-keygen-secfile.XXXXXXXXXX`"
187
fi
188
189
# Create temporary key ring directory
190
RINGDIR="`mktemp -d -t mandos-keygen-keyrings.XXXXXXXXXX`"
191
192
# Remove temporary files on exit
193
trap "
194
set +e; \
195
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
196
shred --remove \"$RINGDIR\"/sec* 2>/dev/null;
197
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
198
rm --recursive --force \"$RINGDIR\";
199
tty --quiet && stty echo; \
200
" EXIT
201
202
set -e
203
204
umask 077
205
206
if [ "$mode" = keygen ]; then
207
# Create batch file for GnuPG
208
cat >"$BATCHFILE" <<-EOF
209
Key-Type: $KEYTYPE
210
Key-Length: $KEYLENGTH
211
Key-Usage: sign,auth
212
Subkey-Type: $SUBKEYTYPE
213
Subkey-Length: $SUBKEYLENGTH
214
Subkey-Usage: encrypt
215
Name-Real: $KEYNAME
216
$KEYCOMMENTLINE
217
$KEYEMAILLINE
218
Expire-Date: $KEYEXPIRE
219
#Preferences: <string>
220
#Handle: <no-spaces>
221
#%pubring pubring.gpg
222
#%secring secring.gpg
223
%no-protection
224
%commit
225
EOF
226
227
if tty --quiet; then
228
cat <<-EOF
229
Note: Due to entropy requirements, key generation could take
230
anything from a few minutes to SEVERAL HOURS. Please be
231
patient and/or supply the system with more entropy if needed.
232
EOF
233
echo -n "Started: "
234
date
235
fi
236
237
# Make sure trustdb.gpg exists;
238
# this is a workaround for Debian bug #737128
239
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
240
--homedir "$RINGDIR" \
241
--import-ownertrust < /dev/null
242
# Generate a new key in the key rings
243
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
244
--homedir "$RINGDIR" --trust-model always \
245
--gen-key "$BATCHFILE"
246
rm --force "$BATCHFILE"
247
248
if tty --quiet; then
249
echo -n "Finished: "
250
date
251
fi
252
253
# Backup any old key files
254
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
255
2>/dev/null; then
256
shred --remove "$SECKEYFILE"
257
fi
258
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
259
2>/dev/null; then
260
rm --force "$PUBKEYFILE"
261
fi
262
263
FILECOMMENT="Mandos client key for $KEYNAME"
264
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
265
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
266
fi
267
268
if [ -n "$KEYEMAIL" ]; then
269
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
270
fi
271
272
# Export key from key rings to key files
273
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
274
--homedir "$RINGDIR" --armor --export-options export-minimal \
275
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
276
--export-secret-keys
277
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
278
--homedir "$RINGDIR" --armor --export-options export-minimal \
279
--comment "$FILECOMMENT" --output "$PUBKEYFILE" --export
280
fi
281
282
if [ "$mode" = password ]; then
283
284
# Make SSH be 0 or 1
285
case "$SSH" in
286
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) SSH=1;;
287
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) SSH=0;;
288
esac
289
290
if [ $SSH -eq 1 ]; then
291
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
292
set +e
293
ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
294
err=$?
295
set -e
296
if [ $err -ne 0 ]; then
297
ssh_fingerprint=""
298
continue
299
fi
300
if [ -n "$ssh_fingerprint" ]; then
301
ssh_fingerprint="${ssh_fingerprint#localhost }"
302
break
303
fi
304
done
305
fi
306
307
# Import key into temporary key rings
308
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
309
--homedir "$RINGDIR" --trust-model always --armor \
310
--import "$SECKEYFILE"
311
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
312
--homedir "$RINGDIR" --trust-model always --armor \
313
--import "$PUBKEYFILE"
314
315
# Get fingerprint of key
316
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
317
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
318
--fingerprint --with-colons \
319
| sed --quiet \
320
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
321
322
test -n "$FINGERPRINT"
323
324
FILECOMMENT="Encrypted password for a Mandos client"
325
326
while [ ! -s "$SECFILE" ]; do
327
if [ -n "$PASSFILE" ]; then
328
cat "$PASSFILE"
329
else
330
tty --quiet && stty -echo
331
echo -n "Enter passphrase: " >/dev/tty
332
read -r first
333
tty --quiet && echo >&2
334
echo -n "Repeat passphrase: " >/dev/tty
335
read -r second
336
if tty --quiet; then
337
echo >&2
338
stty echo
339
fi
340
if [ "$first" != "$second" ]; then
341
echo "Passphrase mismatch" >&2
342
touch "$RINGDIR"/mismatch
343
else
344
echo -n "$first"
345
fi
346
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
347
--homedir "$RINGDIR" --trust-model always --armor \
348
--encrypt --sign --recipient "$FINGERPRINT" --comment \
349
"$FILECOMMENT" > "$SECFILE"
350
if [ -e "$RINGDIR"/mismatch ]; then
351
rm --force "$RINGDIR"/mismatch
352
if tty --quiet; then
353
> "$SECFILE"
354
else
355
exit 1
356
fi
357
fi
358
done
359
360
cat <<-EOF
361
[$KEYNAME]
362
host = $KEYNAME
363
fingerprint = $FINGERPRINT
364
secret =
365
EOF
366
sed --quiet --expression='
367
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
368
/^$/,${
369
# Remove 24-bit Radix-64 checksum
370
s/=....$//
371
# Indent four spaces
372
/^[^-]/s/^/ /p
373
}
374
}' < "$SECFILE"
375
if [ -n "$ssh_fingerprint" ]; then
376
echo 'checker = ssh-keyscan -t '"$ssh_keytype"' %%(host)s 2>/dev/null | grep --fixed-strings --line-regexp --quiet --regexp=%%(host)s" %(ssh_fingerprint)s"'
377
echo "ssh_fingerprint = ${ssh_fingerprint}"
378
fi
379
fi
380
381
trap - EXIT
382
383
set +e
384
# Remove the password file, if any
385
if [ -n "$SECFILE" ]; then
386
shred --remove "$SECFILE"
387
fi
388
# Remove the key rings
389
shred --remove "$RINGDIR"/sec* 2>/dev/null
390
rm --recursive --force "$RINGDIR"
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