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  • Committer: Teddy Hogeborn
  • Date: 2015-07-20 03:03:33 UTC
  • Revision ID: teddy@recompile.se-20150720030333-203m2aeblypcsfte
Bug fix for GnuTLS 3: be compatible with old 2048-bit DSA keys.

The mandos-keygen program in Mandos version 1.6.0 and older generated
2048-bit DSA keys, and when GnuTLS uses these it has trouble
connecting using the Mandos default priority string.  This was
previously fixed in Mandos 1.6.2, but the bug reappeared when using
GnuTLS 3, so the default priority string has to change again; this
time also the Mandos client has to change its default, so now the
server and the client should use the same default priority string:

SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA:+SIGN-DSA-SHA256

* mandos (main/server_defaults): Changed default priority string.
* mandos-options.xml (/section/para[id="priority_compat"]): Removed.
  (/section/para[id="priority"]): Changed default priority string.
* mandos.conf ([DEFAULT]/priority): - '' -
* mandos.conf.xml (OPTIONS/priority): Refer to the id "priority"
                                      instead of "priority_compat".
* mandos.xml (OPTIONS/--priority): - '' -
* plugins.d/mandos-client.c (main): Changed default priority string.

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mandos-ctl
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# 
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# Mandos Monitor - Control and monitor the Mandos server
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# 
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# Copyright © 2008-2014 Teddy Hogeborn
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# Copyright © 2008-2014 Björn Påhlsson
 
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# Copyright © 2008-2015 Teddy Hogeborn
 
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# Copyright © 2008-2015 Björn Påhlsson
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# 
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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from __future__ import (division, absolute_import, print_function,
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                        unicode_literals)
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from future_builtins import *
 
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try:
 
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    from future_builtins import *
 
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except ImportError:
 
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    pass
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import sys
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import argparse
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import dbus
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45
if sys.version_info.major == 2:
 
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    str = unicode
 
47
 
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locale.setlocale(locale.LC_ALL, "")
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tablewords = {
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    "ApprovalDelay": "Approval Delay",
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    "ApprovalDuration": "Approval Duration",
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    "Checker": "Checker",
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    "ExtendedTimeout" : "Extended Timeout"
62
 
    }
 
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    "ExtendedTimeout": "Extended Timeout"
 
68
}
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defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
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domain = "se.recompile"
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busname = domain + ".Mandos"
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server_path = "/"
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server_interface = domain + ".Mandos"
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client_interface = domain + ".Mandos.Client"
69
 
version = "1.6.5"
 
75
version = "1.6.9"
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76
 
71
 
def timedelta_to_milliseconds(td):
72
 
    """Convert a datetime.timedelta object to milliseconds"""
73
 
    return ((td.days * 24 * 60 * 60 * 1000)
74
 
            + (td.seconds * 1000)
75
 
            + (td.microseconds // 1000))
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77
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def milliseconds_to_string(ms):
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    td = datetime.timedelta(0, 0, 0, ms)
79
 
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
80
 
            .format(days = "{0}T".format(td.days) if td.days else "",
81
 
                    hours = td.seconds // 3600,
82
 
                    minutes = (td.seconds % 3600) // 60,
83
 
                    seconds = td.seconds % 60,
84
 
                    ))
 
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
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86
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87
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def rfc3339_duration_to_delta(duration):
111
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    # avoid excessive use of external libraries.
112
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113
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    # New type for defining tokens, syntax, and semantics all-in-one
114
 
    Token = collections.namedtuple("Token",
115
 
                                   ("regexp", # To match token; if
116
 
                                              # "value" is not None,
117
 
                                              # must have a "group"
118
 
                                              # containing digits
119
 
                                    "value",  # datetime.timedelta or
120
 
                                              # None
121
 
                                    "followers")) # Tokens valid after
122
 
                                                  # this token
 
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
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    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
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    # the "duration" ABNF definition in RFC 3339, Appendix A.
125
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    token_end = Token(re.compile(r"$"), None, frozenset())
126
122
    token_second = Token(re.compile(r"(\d+)S"),
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                         datetime.timedelta(seconds=1),
128
 
                         frozenset((token_end,)))
 
124
                         frozenset((token_end, )))
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    token_minute = Token(re.compile(r"(\d+)M"),
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                         datetime.timedelta(minutes=1),
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                         frozenset((token_second, token_end)))
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                       frozenset((token_month, token_end)))
148
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    token_week = Token(re.compile(r"(\d+)W"),
149
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                       datetime.timedelta(weeks=1),
150
 
                       frozenset((token_end,)))
 
146
                       frozenset((token_end, )))
151
147
    token_duration = Token(re.compile(r"P"), None,
152
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                           frozenset((token_year, token_month,
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                                      token_day, token_time,
154
 
                                      token_week))),
 
150
                                      token_week)))
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    # Define starting values
156
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    value = datetime.timedelta() # Value so far
157
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    found_token = None
158
 
    followers = frozenset(token_duration,) # Following valid tokens
 
154
    followers = frozenset((token_duration, )) # Following valid tokens
159
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    s = duration                # String left to parse
160
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    # Loop until end token is found
161
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    while found_token is not token_end:
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                break
179
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        else:
180
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            # No currently valid tokens were found
181
 
            raise ValueError("Invalid RFC 3339 duration")
 
177
            raise ValueError("Invalid RFC 3339 duration: {!r}"
 
178
                             .format(duration))
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    # End token found
183
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    return value
184
181
 
186
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def string_to_delta(interval):
187
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    """Parse a string and return a datetime.timedelta
188
185
    
189
 
    >>> string_to_delta("7d")
 
186
    >>> string_to_delta('7d')
190
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    datetime.timedelta(7)
191
 
    >>> string_to_delta("60s")
 
188
    >>> string_to_delta('60s')
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    datetime.timedelta(0, 60)
193
 
    >>> string_to_delta("60m")
 
190
    >>> string_to_delta('60m')
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    datetime.timedelta(0, 3600)
195
 
    >>> string_to_delta("24h")
 
192
    >>> string_to_delta('24h')
196
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    datetime.timedelta(1)
197
 
    >>> string_to_delta("1w")
 
194
    >>> string_to_delta('1w')
198
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    datetime.timedelta(7)
199
 
    >>> string_to_delta("5m 30s")
 
196
    >>> string_to_delta('5m 30s')
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    datetime.timedelta(0, 330)
201
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    """
202
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223
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            value += datetime.timedelta(0, 0, 0, int(num))
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    return value
225
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223
 
226
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def print_clients(clients, keywords):
227
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    def valuetostring(value, keyword):
228
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        if type(value) is dbus.Boolean:
230
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        if keyword in ("Timeout", "Interval", "ApprovalDelay",
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                       "ApprovalDuration", "ExtendedTimeout"):
232
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            return milliseconds_to_string(value)
233
 
        return unicode(value)
 
231
        return str(value)
234
232
    
235
233
    # Create format string to print table rows
236
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    format_string = " ".join("{{{key}:{width}}}".format(
237
 
            width = max(len(tablewords[key]),
238
 
                        max(len(valuetostring(client[key],
239
 
                                              key))
240
 
                            for client in
241
 
                            clients)),
242
 
            key = key) for key in keywords)
 
235
        width = max(len(tablewords[key]),
 
236
                    max(len(valuetostring(client[key], key))
 
237
                        for client in clients)),
 
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        key = key)
 
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                             for key in keywords)
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    # Print header line
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    print(format_string.format(**tablewords))
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    for client in clients:
246
 
        print(format_string.format(**dict((key,
247
 
                                           valuetostring(client[key],
248
 
                                                         key))
249
 
                                          for key in keywords)))
 
243
        print(format_string.format(**{
 
244
            key: valuetostring(client[key], key)
 
245
            for key in keywords }))
 
246
 
250
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def has_actions(options):
252
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    return any((options.enable,
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                options.approve,
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                options.deny))
270
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268
 
271
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def main():
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    parser = argparse.ArgumentParser()
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    parser.add_argument("--version", action="version",
274
 
                        version = "%(prog)s {0}".format(version),
 
272
                        version = "%(prog)s {}".format(version),
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                        help="show version number and exit")
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    parser.add_argument("-a", "--all", action="store_true",
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                        help="Select all clients")
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    parser.add_argument("--approval-duration",
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                        help="Set duration of one client approval")
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    parser.add_argument("-H", "--host", help="Set host for client")
313
 
    parser.add_argument("-s", "--secret", type=file,
 
311
    parser.add_argument("-s", "--secret",
 
312
                        type=argparse.FileType(mode="rb"),
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                        help="Set password blob (file) for client")
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    parser.add_argument("-A", "--approve", action="store_true",
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                        help="Approve any current client request")
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        bus = dbus.SystemBus()
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        mandos_dbus_objc = bus.get_object(busname, server_path)
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    except dbus.exceptions.DBusException:
340
 
        print("Could not connect to Mandos server",
341
 
              file=sys.stderr)
 
339
        print("Could not connect to Mandos server", file=sys.stderr)
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        sys.exit(1)
343
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344
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    mandos_serv = dbus.Interface(mandos_dbus_objc,
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    clients={}
366
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367
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    if options.all or not options.client:
368
 
        clients = dict((bus.get_object(busname, path), properties)
369
 
                       for path, properties in
370
 
                       mandos_clients.iteritems())
 
366
        clients = { bus.get_object(busname, path): properties
 
367
                    for path, properties in mandos_clients.items() }
371
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    else:
372
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        for name in options.client:
373
 
            for path, client in mandos_clients.iteritems():
 
370
            for path, client in mandos_clients.items():
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                if client["Name"] == name:
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                    client_objc = bus.get_object(busname, path)
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                    clients[client_objc] = client
377
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                    break
378
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            else:
379
 
                print("Client not found on server: {0!r}"
 
376
                print("Client not found on server: {!r}"
380
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                      .format(name), file=sys.stderr)
381
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                sys.exit(1)
382
379
    
383
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    if not has_actions(options) and clients:
384
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        if options.verbose:
385
 
            keywords = ("Name", "Enabled", "Timeout",
386
 
                        "LastCheckedOK", "Created", "Interval",
387
 
                        "Host", "Fingerprint", "CheckerRunning",
388
 
                        "LastEnabled", "ApprovalPending",
389
 
                        "ApprovedByDefault",
 
382
            keywords = ("Name", "Enabled", "Timeout", "LastCheckedOK",
 
383
                        "Created", "Interval", "Host", "Fingerprint",
 
384
                        "CheckerRunning", "LastEnabled",
 
385
                        "ApprovalPending", "ApprovedByDefault",
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386
                        "LastApprovalRequest", "ApprovalDelay",
391
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                        "ApprovalDuration", "Checker",
392
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                        "ExtendedTimeout")
397
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    else:
398
394
        # Process each client in the list by all selected options
399
395
        for client in clients:
 
396
            
400
397
            def set_client_prop(prop, value):
401
398
                """Set a Client D-Bus property"""
402
399
                client.Set(client_interface, prop, value,
403
400
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
401
            
404
402
            def set_client_prop_ms(prop, value):
405
403
                """Set a Client D-Bus property, converted
406
404
                from a string to milliseconds."""
407
405
                set_client_prop(prop,
408
 
                                timedelta_to_milliseconds
409
 
                                (string_to_delta(value)))
 
406
                                string_to_delta(value).total_seconds()
 
407
                                * 1000)
 
408
            
410
409
            if options.remove:
411
410
                mandos_serv.RemoveClient(client.__dbus_object_path__)
412
411
            if options.enable:
456
455
                client.Approve(dbus.Boolean(False),
457
456
                               dbus_interface=client_interface)
458
457
 
 
458
 
459
459
if __name__ == "__main__":
460
460
    main()