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  • Committer: Teddy Hogeborn
  • Date: 2012-06-13 22:06:57 UTC
  • mto: This revision was merged to the branch mainline in revision 596.
  • Revision ID: teddy@recompile.se-20120613220657-qvq7c7nrndl3t413
* plugins.d/mandos-client.c (get_flags): Don't clobber errno.
  (up_interface): Removed; replaced with "interface_is_up".
  (interface_is_up, interface_is_running,
   lower_privileges_permanently, take_down_interface): New.
  (bring_up_interface): Return "error_t".  Use new functions
                        "interface_is_up", "get_flags", and
                        "interface_is_running".
  (main): Save all interfaces either autodetected or specified with
          --interface in argz vector "interfaces".  Save interfaces to
          take down on exit in argz vector "interfaces_to_take_down".
          Save interface names for DEVICE variable to network hooks as
          argz_vector "interfaces_hooks".  Bug fix: Be privileged
          while stopping network hooks.
* plugins.d/mandos-client.xml (SYNOPSIS): Changed --interface synopsis.
  (DESCRIPTION): Updated to document use of all interfaces.
  (OPTIONS): Updated description of "--interface".
* network-hooks.d/bridge: Parse comma-separated DEVICE environment
                          variable.
* network-hooks.d/openvpn: - '' -
* network-hooks.d/wireless: - '' -

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Lines of Context:
mandos-ctl
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2008-2016 Teddy Hogeborn
7
 
# Copyright © 2008-2016 Björn Påhlsson
 
6
# Copyright © 2008-2012 Teddy Hogeborn
 
7
# Copyright © 2008-2012 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
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
28
 
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
29
from future_builtins import *
33
30
 
34
31
import sys
 
32
import dbus
35
33
import argparse
36
34
import locale
37
35
import datetime
38
36
import re
39
37
import os
40
 
import collections
41
 
import doctest
42
 
import json
43
 
 
44
 
import dbus
45
 
 
46
 
if sys.version_info.major == 2:
47
 
    str = unicode
48
38
 
49
39
locale.setlocale(locale.LC_ALL, "")
50
40
 
65
55
    "ApprovalDelay": "Approval Delay",
66
56
    "ApprovalDuration": "Approval Duration",
67
57
    "Checker": "Checker",
68
 
    "ExtendedTimeout": "Extended Timeout",
69
 
    "Expires": "Expires",
70
 
    "LastCheckerStatus": "Last Checker Status",
71
 
}
 
58
    "ExtendedTimeout" : "Extended Timeout"
 
59
    }
72
60
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
73
61
domain = "se.recompile"
74
62
busname = domain + ".Mandos"
75
63
server_path = "/"
76
64
server_interface = domain + ".Mandos"
77
65
client_interface = domain + ".Mandos.Client"
78
 
version = "1.7.10"
79
 
 
80
 
 
81
 
try:
82
 
    dbus.OBJECT_MANAGER_IFACE
83
 
except AttributeError:
84
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
66
version = "1.5.5"
 
67
 
 
68
def timedelta_to_milliseconds(td):
 
69
    """Convert a datetime.timedelta object to milliseconds"""
 
70
    return ((td.days * 24 * 60 * 60 * 1000)
 
71
            + (td.seconds * 1000)
 
72
            + (td.microseconds // 1000))
85
73
 
86
74
def milliseconds_to_string(ms):
87
75
    td = datetime.timedelta(0, 0, 0, ms)
88
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}".format(
89
 
        days = "{}T".format(td.days) if td.days else "",
90
 
        hours = td.seconds // 3600,
91
 
        minutes = (td.seconds % 3600) // 60,
92
 
        seconds = td.seconds % 60))
93
 
 
94
 
 
95
 
def rfc3339_duration_to_delta(duration):
96
 
    """Parse an RFC 3339 "duration" and return a datetime.timedelta
97
 
    
98
 
    >>> rfc3339_duration_to_delta("P7D")
99
 
    datetime.timedelta(7)
100
 
    >>> rfc3339_duration_to_delta("PT60S")
101
 
    datetime.timedelta(0, 60)
102
 
    >>> rfc3339_duration_to_delta("PT60M")
103
 
    datetime.timedelta(0, 3600)
104
 
    >>> rfc3339_duration_to_delta("PT24H")
105
 
    datetime.timedelta(1)
106
 
    >>> rfc3339_duration_to_delta("P1W")
107
 
    datetime.timedelta(7)
108
 
    >>> rfc3339_duration_to_delta("PT5M30S")
109
 
    datetime.timedelta(0, 330)
110
 
    >>> rfc3339_duration_to_delta("P1DT3M20S")
111
 
    datetime.timedelta(1, 200)
112
 
    """
113
 
    
114
 
    # Parsing an RFC 3339 duration with regular expressions is not
115
 
    # possible - there would have to be multiple places for the same
116
 
    # values, like seconds.  The current code, while more esoteric, is
117
 
    # cleaner without depending on a parsing library.  If Python had a
118
 
    # built-in library for parsing we would use it, but we'd like to
119
 
    # avoid excessive use of external libraries.
120
 
    
121
 
    # New type for defining tokens, syntax, and semantics all-in-one
122
 
    Token = collections.namedtuple("Token", (
123
 
        "regexp",  # To match token; if "value" is not None, must have
124
 
                   # a "group" containing digits
125
 
        "value",   # datetime.timedelta or None
126
 
        "followers"))           # Tokens valid after this token
127
 
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
128
 
    # the "duration" ABNF definition in RFC 3339, Appendix A.
129
 
    token_end = Token(re.compile(r"$"), None, frozenset())
130
 
    token_second = Token(re.compile(r"(\d+)S"),
131
 
                         datetime.timedelta(seconds=1),
132
 
                         frozenset((token_end, )))
133
 
    token_minute = Token(re.compile(r"(\d+)M"),
134
 
                         datetime.timedelta(minutes=1),
135
 
                         frozenset((token_second, token_end)))
136
 
    token_hour = Token(re.compile(r"(\d+)H"),
137
 
                       datetime.timedelta(hours=1),
138
 
                       frozenset((token_minute, token_end)))
139
 
    token_time = Token(re.compile(r"T"),
140
 
                       None,
141
 
                       frozenset((token_hour, token_minute,
142
 
                                  token_second)))
143
 
    token_day = Token(re.compile(r"(\d+)D"),
144
 
                      datetime.timedelta(days=1),
145
 
                      frozenset((token_time, token_end)))
146
 
    token_month = Token(re.compile(r"(\d+)M"),
147
 
                        datetime.timedelta(weeks=4),
148
 
                        frozenset((token_day, token_end)))
149
 
    token_year = Token(re.compile(r"(\d+)Y"),
150
 
                       datetime.timedelta(weeks=52),
151
 
                       frozenset((token_month, token_end)))
152
 
    token_week = Token(re.compile(r"(\d+)W"),
153
 
                       datetime.timedelta(weeks=1),
154
 
                       frozenset((token_end, )))
155
 
    token_duration = Token(re.compile(r"P"), None,
156
 
                           frozenset((token_year, token_month,
157
 
                                      token_day, token_time,
158
 
                                      token_week)))
159
 
    # Define starting values
160
 
    value = datetime.timedelta() # Value so far
161
 
    found_token = None
162
 
    followers = frozenset((token_duration, )) # Following valid tokens
163
 
    s = duration                # String left to parse
164
 
    # Loop until end token is found
165
 
    while found_token is not token_end:
166
 
        # Search for any currently valid tokens
167
 
        for token in followers:
168
 
            match = token.regexp.match(s)
169
 
            if match is not None:
170
 
                # Token found
171
 
                if token.value is not None:
172
 
                    # Value found, parse digits
173
 
                    factor = int(match.group(1), 10)
174
 
                    # Add to value so far
175
 
                    value += factor * token.value
176
 
                # Strip token from string
177
 
                s = token.regexp.sub("", s, 1)
178
 
                # Go to found token
179
 
                found_token = token
180
 
                # Set valid next tokens
181
 
                followers = found_token.followers
182
 
                break
183
 
        else:
184
 
            # No currently valid tokens were found
185
 
            raise ValueError("Invalid RFC 3339 duration: {!r}"
186
 
                             .format(duration))
187
 
    # End token found
188
 
    return value
189
 
 
 
76
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
 
77
            .format(days = "{0}T".format(td.days) if td.days else "",
 
78
                    hours = td.seconds // 3600,
 
79
                    minutes = (td.seconds % 3600) // 60,
 
80
                    seconds = td.seconds % 60,
 
81
                    ))
190
82
 
191
83
def string_to_delta(interval):
192
84
    """Parse a string and return a datetime.timedelta
193
85
    
194
 
    >>> string_to_delta('7d')
 
86
    >>> string_to_delta("7d")
195
87
    datetime.timedelta(7)
196
 
    >>> string_to_delta('60s')
 
88
    >>> string_to_delta("60s")
197
89
    datetime.timedelta(0, 60)
198
 
    >>> string_to_delta('60m')
 
90
    >>> string_to_delta("60m")
199
91
    datetime.timedelta(0, 3600)
200
 
    >>> string_to_delta('24h')
 
92
    >>> string_to_delta("24h")
201
93
    datetime.timedelta(1)
202
 
    >>> string_to_delta('1w')
 
94
    >>> string_to_delta("1w")
203
95
    datetime.timedelta(7)
204
 
    >>> string_to_delta('5m 30s')
 
96
    >>> string_to_delta("5m 30s")
205
97
    datetime.timedelta(0, 330)
206
98
    """
207
 
    
208
 
    try:
209
 
        return rfc3339_duration_to_delta(interval)
210
 
    except ValueError:
211
 
        pass
212
 
    
213
99
    value = datetime.timedelta(0)
214
 
    regexp = re.compile(r"(\d+)([dsmhw]?)")
 
100
    regexp = re.compile("(\d+)([dsmhw]?)")
215
101
    
216
102
    for num, suffix in regexp.findall(interval):
217
103
        if suffix == "d":
228
114
            value += datetime.timedelta(0, 0, 0, int(num))
229
115
    return value
230
116
 
231
 
 
232
117
def print_clients(clients, keywords):
233
118
    def valuetostring(value, keyword):
234
119
        if type(value) is dbus.Boolean:
236
121
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
237
122
                       "ApprovalDuration", "ExtendedTimeout"):
238
123
            return milliseconds_to_string(value)
239
 
        return str(value)
 
124
        return unicode(value)
240
125
    
241
126
    # Create format string to print table rows
242
127
    format_string = " ".join("{{{key}:{width}}}".format(
243
 
        width = max(len(tablewords[key]),
244
 
                    max(len(valuetostring(client[key], key))
245
 
                        for client in clients)),
246
 
        key = key)
247
 
                             for key in keywords)
 
128
            width = max(len(tablewords[key]),
 
129
                        max(len(valuetostring(client[key],
 
130
                                              key))
 
131
                            for client in
 
132
                            clients)),
 
133
            key = key) for key in keywords)
248
134
    # Print header line
249
135
    print(format_string.format(**tablewords))
250
136
    for client in clients:
251
 
        print(format_string.format(**{
252
 
            key: valuetostring(client[key], key)
253
 
            for key in keywords }))
254
 
 
 
137
        print(format_string.format(**dict((key,
 
138
                                           valuetostring(client[key],
 
139
                                                         key))
 
140
                                          for key in keywords)))
255
141
 
256
142
def has_actions(options):
257
143
    return any((options.enable,
273
159
                options.approve,
274
160
                options.deny))
275
161
 
276
 
 
277
162
def main():
278
163
    parser = argparse.ArgumentParser()
279
164
    parser.add_argument("--version", action="version",
280
 
                        version = "%(prog)s {}".format(version),
 
165
                        version = "%(prog)s {0}".format(version),
281
166
                        help="show version number and exit")
282
167
    parser.add_argument("-a", "--all", action="store_true",
283
168
                        help="Select all clients")
284
169
    parser.add_argument("-v", "--verbose", action="store_true",
285
170
                        help="Print all fields")
286
 
    parser.add_argument("-j", "--dump-json", action="store_true",
287
 
                        help="Dump client data in JSON format")
288
171
    parser.add_argument("-e", "--enable", action="store_true",
289
172
                        help="Enable client")
290
173
    parser.add_argument("-d", "--disable", action="store_true",
318
201
    parser.add_argument("--approval-duration",
319
202
                        help="Set duration of one client approval")
320
203
    parser.add_argument("-H", "--host", help="Set host for client")
321
 
    parser.add_argument("-s", "--secret",
322
 
                        type=argparse.FileType(mode="rb"),
 
204
    parser.add_argument("-s", "--secret", type=file,
323
205
                        help="Set password blob (file) for client")
324
206
    parser.add_argument("-A", "--approve", action="store_true",
325
207
                        help="Approve any current client request")
326
208
    parser.add_argument("-D", "--deny", action="store_true",
327
209
                        help="Deny any current client request")
328
 
    parser.add_argument("--check", action="store_true",
329
 
                        help="Run self-test")
330
210
    parser.add_argument("client", nargs="*", help="Client name")
331
211
    options = parser.parse_args()
332
212
    
333
213
    if has_actions(options) and not (options.client or options.all):
334
214
        parser.error("Options require clients names or --all.")
335
215
    if options.verbose and has_actions(options):
336
 
        parser.error("--verbose can only be used alone.")
337
 
    if options.dump_json and (options.verbose or has_actions(options)):
338
 
        parser.error("--dump-json can only be used alone.")
 
216
        parser.error("--verbose can only be used alone or with"
 
217
                     " --all.")
339
218
    if options.all and not has_actions(options):
340
219
        parser.error("--all requires an action.")
341
220
    
342
 
    if options.check:
343
 
        fail_count, test_count = doctest.testmod()
344
 
        sys.exit(os.EX_OK if fail_count == 0 else 1)
345
 
    
346
221
    try:
347
222
        bus = dbus.SystemBus()
348
223
        mandos_dbus_objc = bus.get_object(busname, server_path)
349
224
    except dbus.exceptions.DBusException:
350
 
        print("Could not connect to Mandos server", file=sys.stderr)
 
225
        print("Could not connect to Mandos server",
 
226
              file=sys.stderr)
351
227
        sys.exit(1)
352
228
    
353
229
    mandos_serv = dbus.Interface(mandos_dbus_objc,
354
230
                                 dbus_interface = server_interface)
355
 
    mandos_serv_object_manager = dbus.Interface(
356
 
        mandos_dbus_objc, dbus_interface = dbus.OBJECT_MANAGER_IFACE)
357
231
    
358
232
    #block stderr since dbus library prints to stderr
359
233
    null = os.open(os.path.devnull, os.O_RDWR)
362
236
    os.close(null)
363
237
    try:
364
238
        try:
365
 
            mandos_clients = { path: ifs_and_props[client_interface]
366
 
                               for path, ifs_and_props in
367
 
                               mandos_serv_object_manager
368
 
                               .GetManagedObjects().items()
369
 
                               if client_interface in ifs_and_props }
 
239
            mandos_clients = mandos_serv.GetAllClientsWithProperties()
370
240
        finally:
371
241
            #restore stderr
372
242
            os.dup2(stderrcopy, sys.stderr.fileno())
373
243
            os.close(stderrcopy)
374
 
    except dbus.exceptions.DBusException as e:
375
 
        print("Access denied: Accessing mandos server through D-Bus: {}"
376
 
              .format(e), file=sys.stderr)
 
244
    except dbus.exceptions.DBusException:
 
245
        print("Access denied: Accessing mandos server through dbus.",
 
246
              file=sys.stderr)
377
247
        sys.exit(1)
378
248
    
379
249
    # Compile dict of (clients: properties) to process
380
250
    clients={}
381
251
    
382
252
    if options.all or not options.client:
383
 
        clients = { bus.get_object(busname, path): properties
384
 
                    for path, properties in mandos_clients.items() }
 
253
        clients = dict((bus.get_object(busname, path), properties)
 
254
                       for path, properties in
 
255
                       mandos_clients.iteritems())
385
256
    else:
386
257
        for name in options.client:
387
 
            for path, client in mandos_clients.items():
 
258
            for path, client in mandos_clients.iteritems():
388
259
                if client["Name"] == name:
389
260
                    client_objc = bus.get_object(busname, path)
390
261
                    clients[client_objc] = client
391
262
                    break
392
263
            else:
393
 
                print("Client not found on server: {!r}"
 
264
                print("Client not found on server: {0!r}"
394
265
                      .format(name), file=sys.stderr)
395
266
                sys.exit(1)
396
267
    
397
268
    if not has_actions(options) and clients:
398
 
        if options.verbose or options.dump_json:
399
 
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
400
 
                        "Created", "Interval", "Host", "Fingerprint",
401
 
                        "CheckerRunning", "LastEnabled",
402
 
                        "ApprovalPending", "ApprovedByDefault",
 
269
        if options.verbose:
 
270
            keywords = ("Name", "Enabled", "Timeout",
 
271
                        "LastCheckedOK", "Created", "Interval",
 
272
                        "Host", "Fingerprint", "CheckerRunning",
 
273
                        "LastEnabled", "ApprovalPending",
 
274
                        "ApprovedByDefault",
403
275
                        "LastApprovalRequest", "ApprovalDelay",
404
276
                        "ApprovalDuration", "Checker",
405
 
                        "ExtendedTimeout", "Expires",
406
 
                        "LastCheckerStatus")
 
277
                        "ExtendedTimeout")
407
278
        else:
408
279
            keywords = defaultkeywords
409
280
        
410
 
        if options.dump_json:
411
 
            json.dump({client["Name"]: {key:
412
 
                                        bool(client[key])
413
 
                                        if isinstance(client[key],
414
 
                                                      dbus.Boolean)
415
 
                                        else client[key]
416
 
                                        for key in keywords }
417
 
                       for client in clients.values() },
418
 
                      fp = sys.stdout, indent = 4,
419
 
                      separators = (',', ': '))
420
 
            print()
421
 
        else:
422
 
            print_clients(clients.values(), keywords)
 
281
        print_clients(clients.values(), keywords)
423
282
    else:
424
283
        # Process each client in the list by all selected options
425
284
        for client in clients:
426
 
            
427
285
            def set_client_prop(prop, value):
428
286
                """Set a Client D-Bus property"""
429
287
                client.Set(client_interface, prop, value,
430
288
                           dbus_interface=dbus.PROPERTIES_IFACE)
431
 
            
432
289
            def set_client_prop_ms(prop, value):
433
290
                """Set a Client D-Bus property, converted
434
291
                from a string to milliseconds."""
435
292
                set_client_prop(prop,
436
 
                                string_to_delta(value).total_seconds()
437
 
                                * 1000)
438
 
            
 
293
                                timedelta_to_milliseconds
 
294
                                (string_to_delta(value)))
439
295
            if options.remove:
440
296
                mandos_serv.RemoveClient(client.__dbus_object_path__)
441
297
            if options.enable:
485
341
                client.Approve(dbus.Boolean(False),
486
342
                               dbus_interface=client_interface)
487
343
 
488
 
 
489
344
if __name__ == "__main__":
490
345
    main()