/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2015-07-20 00:59:17 UTC
  • Revision ID: teddy@recompile.se-20150720005917-ud7fxa6wcv9y4ta6
mandos-client: Bug fix: don't crash if --dh-params was not used.

* plugins.d/mandos-client.c (main): Bug fix: Check if dh_params_file
                                    is NULL before using it in the
                                    workaround for Debian bug #633582.

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mandos-ctl
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2008-2012 Teddy Hogeborn
7
 
# Copyright © 2008-2012 Björn Påhlsson
 
6
# Copyright © 2008-2015 Teddy Hogeborn
 
7
# Copyright © 2008-2015 Björn Påhlsson
8
8
# 
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
17
17
#     GNU General Public License for more details.
18
18
# 
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
25
26
from __future__ import (division, absolute_import, print_function,
26
27
                        unicode_literals)
27
28
 
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
 
33
 
28
34
import sys
29
 
import dbus
30
35
import argparse
31
36
import locale
32
37
import datetime
33
38
import re
34
39
import os
 
40
import collections
 
41
import doctest
 
42
 
 
43
import dbus
 
44
 
 
45
if sys.version_info.major == 2:
 
46
    str = unicode
35
47
 
36
48
locale.setlocale(locale.LC_ALL, "")
37
49
 
52
64
    "ApprovalDelay": "Approval Delay",
53
65
    "ApprovalDuration": "Approval Duration",
54
66
    "Checker": "Checker",
55
 
    "ExtendedTimeout" : "Extended Timeout"
56
 
    }
 
67
    "ExtendedTimeout": "Extended Timeout"
 
68
}
57
69
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
58
70
domain = "se.recompile"
59
71
busname = domain + ".Mandos"
60
72
server_path = "/"
61
73
server_interface = domain + ".Mandos"
62
74
client_interface = domain + ".Mandos.Client"
63
 
version = "1.5.3"
 
75
version = "1.6.9"
64
76
 
65
 
def timedelta_to_milliseconds(td):
66
 
    """Convert a datetime.timedelta object to milliseconds"""
67
 
    return ((td.days * 24 * 60 * 60 * 1000)
68
 
            + (td.seconds * 1000)
69
 
            + (td.microseconds // 1000))
70
77
 
71
78
def milliseconds_to_string(ms):
72
79
    td = datetime.timedelta(0, 0, 0, ms)
73
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
74
 
            .format(days = "{0}T".format(td.days) if td.days else "",
75
 
                    hours = td.seconds // 3600,
76
 
                    minutes = (td.seconds % 3600) // 60,
77
 
                    seconds = td.seconds % 60,
78
 
                    ))
 
80
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}".format(
 
81
        days = "{}T".format(td.days) if td.days else "",
 
82
        hours = td.seconds // 3600,
 
83
        minutes = (td.seconds % 3600) // 60,
 
84
        seconds = td.seconds % 60))
 
85
 
 
86
 
 
87
def rfc3339_duration_to_delta(duration):
 
88
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
 
89
    
 
90
    >>> rfc3339_duration_to_delta("P7D")
 
91
    datetime.timedelta(7)
 
92
    >>> rfc3339_duration_to_delta("PT60S")
 
93
    datetime.timedelta(0, 60)
 
94
    >>> rfc3339_duration_to_delta("PT60M")
 
95
    datetime.timedelta(0, 3600)
 
96
    >>> rfc3339_duration_to_delta("PT24H")
 
97
    datetime.timedelta(1)
 
98
    >>> rfc3339_duration_to_delta("P1W")
 
99
    datetime.timedelta(7)
 
100
    >>> rfc3339_duration_to_delta("PT5M30S")
 
101
    datetime.timedelta(0, 330)
 
102
    >>> rfc3339_duration_to_delta("P1DT3M20S")
 
103
    datetime.timedelta(1, 200)
 
104
    """
 
105
    
 
106
    # Parsing an RFC 3339 duration with regular expressions is not
 
107
    # possible - there would have to be multiple places for the same
 
108
    # values, like seconds.  The current code, while more esoteric, is
 
109
    # cleaner without depending on a parsing library.  If Python had a
 
110
    # built-in library for parsing we would use it, but we'd like to
 
111
    # avoid excessive use of external libraries.
 
112
    
 
113
    # New type for defining tokens, syntax, and semantics all-in-one
 
114
    Token = collections.namedtuple("Token", (
 
115
        "regexp",  # To match token; if "value" is not None, must have
 
116
                   # a "group" containing digits
 
117
        "value",   # datetime.timedelta or None
 
118
        "followers"))           # Tokens valid after this token
 
119
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
 
120
    # the "duration" ABNF definition in RFC 3339, Appendix A.
 
121
    token_end = Token(re.compile(r"$"), None, frozenset())
 
122
    token_second = Token(re.compile(r"(\d+)S"),
 
123
                         datetime.timedelta(seconds=1),
 
124
                         frozenset((token_end, )))
 
125
    token_minute = Token(re.compile(r"(\d+)M"),
 
126
                         datetime.timedelta(minutes=1),
 
127
                         frozenset((token_second, token_end)))
 
128
    token_hour = Token(re.compile(r"(\d+)H"),
 
129
                       datetime.timedelta(hours=1),
 
130
                       frozenset((token_minute, token_end)))
 
131
    token_time = Token(re.compile(r"T"),
 
132
                       None,
 
133
                       frozenset((token_hour, token_minute,
 
134
                                  token_second)))
 
135
    token_day = Token(re.compile(r"(\d+)D"),
 
136
                      datetime.timedelta(days=1),
 
137
                      frozenset((token_time, token_end)))
 
138
    token_month = Token(re.compile(r"(\d+)M"),
 
139
                        datetime.timedelta(weeks=4),
 
140
                        frozenset((token_day, token_end)))
 
141
    token_year = Token(re.compile(r"(\d+)Y"),
 
142
                       datetime.timedelta(weeks=52),
 
143
                       frozenset((token_month, token_end)))
 
144
    token_week = Token(re.compile(r"(\d+)W"),
 
145
                       datetime.timedelta(weeks=1),
 
146
                       frozenset((token_end, )))
 
147
    token_duration = Token(re.compile(r"P"), None,
 
148
                           frozenset((token_year, token_month,
 
149
                                      token_day, token_time,
 
150
                                      token_week)))
 
151
    # Define starting values
 
152
    value = datetime.timedelta() # Value so far
 
153
    found_token = None
 
154
    followers = frozenset((token_duration, )) # Following valid tokens
 
155
    s = duration                # String left to parse
 
156
    # Loop until end token is found
 
157
    while found_token is not token_end:
 
158
        # Search for any currently valid tokens
 
159
        for token in followers:
 
160
            match = token.regexp.match(s)
 
161
            if match is not None:
 
162
                # Token found
 
163
                if token.value is not None:
 
164
                    # Value found, parse digits
 
165
                    factor = int(match.group(1), 10)
 
166
                    # Add to value so far
 
167
                    value += factor * token.value
 
168
                # Strip token from string
 
169
                s = token.regexp.sub("", s, 1)
 
170
                # Go to found token
 
171
                found_token = token
 
172
                # Set valid next tokens
 
173
                followers = found_token.followers
 
174
                break
 
175
        else:
 
176
            # No currently valid tokens were found
 
177
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
178
                             .format(duration))
 
179
    # End token found
 
180
    return value
 
181
 
79
182
 
80
183
def string_to_delta(interval):
81
184
    """Parse a string and return a datetime.timedelta
82
185
    
83
 
    >>> string_to_delta("7d")
 
186
    >>> string_to_delta('7d')
84
187
    datetime.timedelta(7)
85
 
    >>> string_to_delta("60s")
 
188
    >>> string_to_delta('60s')
86
189
    datetime.timedelta(0, 60)
87
 
    >>> string_to_delta("60m")
 
190
    >>> string_to_delta('60m')
88
191
    datetime.timedelta(0, 3600)
89
 
    >>> string_to_delta("24h")
 
192
    >>> string_to_delta('24h')
90
193
    datetime.timedelta(1)
91
 
    >>> string_to_delta("1w")
 
194
    >>> string_to_delta('1w')
92
195
    datetime.timedelta(7)
93
 
    >>> string_to_delta("5m 30s")
 
196
    >>> string_to_delta('5m 30s')
94
197
    datetime.timedelta(0, 330)
95
198
    """
 
199
    
 
200
    try:
 
201
        return rfc3339_duration_to_delta(interval)
 
202
    except ValueError:
 
203
        pass
 
204
    
96
205
    value = datetime.timedelta(0)
97
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
206
    regexp = re.compile(r"(\d+)([dsmhw]?)")
98
207
    
99
208
    for num, suffix in regexp.findall(interval):
100
209
        if suffix == "d":
111
220
            value += datetime.timedelta(0, 0, 0, int(num))
112
221
    return value
113
222
 
 
223
 
114
224
def print_clients(clients, keywords):
115
225
    def valuetostring(value, keyword):
116
226
        if type(value) is dbus.Boolean:
117
227
            return "Yes" if value else "No"
118
228
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
119
 
                       "ApprovalDuration"):
 
229
                       "ApprovalDuration", "ExtendedTimeout"):
120
230
            return milliseconds_to_string(value)
121
 
        return unicode(value)
 
231
        return str(value)
122
232
    
123
233
    # Create format string to print table rows
124
234
    format_string = " ".join("{{{key}:{width}}}".format(
125
 
            width = max(len(tablewords[key]),
126
 
                        max(len(valuetostring(client[key],
127
 
                                              key))
128
 
                            for client in
129
 
                            clients)),
130
 
            key = key) for key in keywords)
 
235
        width = max(len(tablewords[key]),
 
236
                    max(len(valuetostring(client[key], key))
 
237
                        for client in clients)),
 
238
        key = key)
 
239
                             for key in keywords)
131
240
    # Print header line
132
241
    print(format_string.format(**tablewords))
133
242
    for client in clients:
134
 
        print(format_string.format(**dict((key,
135
 
                                           valuetostring(client[key],
136
 
                                                         key))
137
 
                                          for key in keywords)))
 
243
        print(format_string.format(**{
 
244
            key: valuetostring(client[key], key)
 
245
            for key in keywords }))
 
246
 
138
247
 
139
248
def has_actions(options):
140
249
    return any((options.enable,
156
265
                options.approve,
157
266
                options.deny))
158
267
 
 
268
 
159
269
def main():
160
270
    parser = argparse.ArgumentParser()
161
271
    parser.add_argument("--version", action="version",
162
 
                        version = "%(prog)s {0}".format(version),
 
272
                        version = "%(prog)s {}".format(version),
163
273
                        help="show version number and exit")
164
274
    parser.add_argument("-a", "--all", action="store_true",
165
275
                        help="Select all clients")
198
308
    parser.add_argument("--approval-duration",
199
309
                        help="Set duration of one client approval")
200
310
    parser.add_argument("-H", "--host", help="Set host for client")
201
 
    parser.add_argument("-s", "--secret", type=file,
 
311
    parser.add_argument("-s", "--secret",
 
312
                        type=argparse.FileType(mode="rb"),
202
313
                        help="Set password blob (file) for client")
203
314
    parser.add_argument("-A", "--approve", action="store_true",
204
315
                        help="Approve any current client request")
205
316
    parser.add_argument("-D", "--deny", action="store_true",
206
317
                        help="Deny any current client request")
 
318
    parser.add_argument("--check", action="store_true",
 
319
                        help="Run self-test")
207
320
    parser.add_argument("client", nargs="*", help="Client name")
208
321
    options = parser.parse_args()
209
322
    
210
 
    if has_actions(options) and not options.client and not options.all:
 
323
    if has_actions(options) and not (options.client or options.all):
211
324
        parser.error("Options require clients names or --all.")
212
325
    if options.verbose and has_actions(options):
213
326
        parser.error("--verbose can only be used alone or with"
214
327
                     " --all.")
215
328
    if options.all and not has_actions(options):
216
329
        parser.error("--all requires an action.")
 
330
 
 
331
    if options.check:
 
332
        fail_count, test_count = doctest.testmod()
 
333
        sys.exit(os.EX_OK if fail_count == 0 else 1)
217
334
    
218
335
    try:
219
336
        bus = dbus.SystemBus()
220
337
        mandos_dbus_objc = bus.get_object(busname, server_path)
221
338
    except dbus.exceptions.DBusException:
222
 
        print("Could not connect to Mandos server",
223
 
              file=sys.stderr)
 
339
        print("Could not connect to Mandos server", file=sys.stderr)
224
340
        sys.exit(1)
225
341
    
226
342
    mandos_serv = dbus.Interface(mandos_dbus_objc,
247
363
    clients={}
248
364
    
249
365
    if options.all or not options.client:
250
 
        clients = dict((bus.get_object(busname, path), properties)
251
 
                       for path, properties in
252
 
                       mandos_clients.iteritems())
 
366
        clients = { bus.get_object(busname, path): properties
 
367
                    for path, properties in mandos_clients.items() }
253
368
    else:
254
369
        for name in options.client:
255
 
            for path, client in mandos_clients.iteritems():
 
370
            for path, client in mandos_clients.items():
256
371
                if client["Name"] == name:
257
372
                    client_objc = bus.get_object(busname, path)
258
373
                    clients[client_objc] = client
259
374
                    break
260
375
            else:
261
 
                print("Client not found on server: {0!r}"
 
376
                print("Client not found on server: {!r}"
262
377
                      .format(name), file=sys.stderr)
263
378
                sys.exit(1)
264
379
    
265
380
    if not has_actions(options) and clients:
266
381
        if options.verbose:
267
 
            keywords = ("Name", "Enabled", "Timeout",
268
 
                        "LastCheckedOK", "Created", "Interval",
269
 
                        "Host", "Fingerprint", "CheckerRunning",
270
 
                        "LastEnabled", "ApprovalPending",
271
 
                        "ApprovedByDefault",
 
382
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
383
                        "Created", "Interval", "Host", "Fingerprint",
 
384
                        "CheckerRunning", "LastEnabled",
 
385
                        "ApprovalPending", "ApprovedByDefault",
272
386
                        "LastApprovalRequest", "ApprovalDelay",
273
387
                        "ApprovalDuration", "Checker",
274
388
                        "ExtendedTimeout")
279
393
    else:
280
394
        # Process each client in the list by all selected options
281
395
        for client in clients:
 
396
            
 
397
            def set_client_prop(prop, value):
 
398
                """Set a Client D-Bus property"""
 
399
                client.Set(client_interface, prop, value,
 
400
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
401
            
 
402
            def set_client_prop_ms(prop, value):
 
403
                """Set a Client D-Bus property, converted
 
404
                from a string to milliseconds."""
 
405
                set_client_prop(prop,
 
406
                                string_to_delta(value).total_seconds()
 
407
                                * 1000)
 
408
            
282
409
            if options.remove:
283
410
                mandos_serv.RemoveClient(client.__dbus_object_path__)
284
411
            if options.enable:
285
 
                client.Enable(dbus_interface=client_interface)
 
412
                set_client_prop("Enabled", dbus.Boolean(True))
286
413
            if options.disable:
287
 
                client.Disable(dbus_interface=client_interface)
 
414
                set_client_prop("Enabled", dbus.Boolean(False))
288
415
            if options.bump_timeout:
289
 
                client.CheckedOK(dbus_interface=client_interface)
 
416
                set_client_prop("LastCheckedOK", "")
290
417
            if options.start_checker:
291
 
                client.StartChecker(dbus_interface=client_interface)
 
418
                set_client_prop("CheckerRunning", dbus.Boolean(True))
292
419
            if options.stop_checker:
293
 
                client.StopChecker(dbus_interface=client_interface)
 
420
                set_client_prop("CheckerRunning", dbus.Boolean(False))
294
421
            if options.is_enabled:
295
422
                sys.exit(0 if client.Get(client_interface,
296
423
                                         "Enabled",
298
425
                                         dbus.PROPERTIES_IFACE)
299
426
                         else 1)
300
427
            if options.checker is not None:
301
 
                client.Set(client_interface, "Checker",
302
 
                           options.checker,
303
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
428
                set_client_prop("Checker", options.checker)
304
429
            if options.host is not None:
305
 
                client.Set(client_interface, "Host", options.host,
306
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
430
                set_client_prop("Host", options.host)
307
431
            if options.interval is not None:
308
 
                client.Set(client_interface, "Interval",
309
 
                           timedelta_to_milliseconds
310
 
                           (string_to_delta(options.interval)),
311
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
432
                set_client_prop_ms("Interval", options.interval)
312
433
            if options.approval_delay is not None:
313
 
                client.Set(client_interface, "ApprovalDelay",
314
 
                           timedelta_to_milliseconds
315
 
                           (string_to_delta(options.
316
 
                                            approval_delay)),
317
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
434
                set_client_prop_ms("ApprovalDelay",
 
435
                                   options.approval_delay)
318
436
            if options.approval_duration is not None:
319
 
                client.Set(client_interface, "ApprovalDuration",
320
 
                           timedelta_to_milliseconds
321
 
                           (string_to_delta(options.
322
 
                                            approval_duration)),
323
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
437
                set_client_prop_ms("ApprovalDuration",
 
438
                                   options.approval_duration)
324
439
            if options.timeout is not None:
325
 
                client.Set(client_interface, "Timeout",
326
 
                           timedelta_to_milliseconds
327
 
                           (string_to_delta(options.timeout)),
328
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
440
                set_client_prop_ms("Timeout", options.timeout)
329
441
            if options.extended_timeout is not None:
330
 
                client.Set(client_interface, "ExtendedTimeout",
331
 
                           timedelta_to_milliseconds
332
 
                           (string_to_delta(options.extended_timeout)),
333
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
442
                set_client_prop_ms("ExtendedTimeout",
 
443
                                   options.extended_timeout)
334
444
            if options.secret is not None:
335
 
                client.Set(client_interface, "Secret",
336
 
                           dbus.ByteArray(options.secret.read()),
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
445
                set_client_prop("Secret",
 
446
                                dbus.ByteArray(options.secret.read()))
338
447
            if options.approved_by_default is not None:
339
 
                client.Set(client_interface, "ApprovedByDefault",
340
 
                           dbus.Boolean(options
341
 
                                        .approved_by_default),
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
448
                set_client_prop("ApprovedByDefault",
 
449
                                dbus.Boolean(options
 
450
                                             .approved_by_default))
343
451
            if options.approve:
344
452
                client.Approve(dbus.Boolean(True),
345
453
                               dbus_interface=client_interface)
347
455
                client.Approve(dbus.Boolean(False),
348
456
                               dbus_interface=client_interface)
349
457
 
 
458
 
350
459
if __name__ == "__main__":
351
460
    main()