/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to mandos-ctl

  • Committer: Teddy Hogeborn
  • Date: 2014-08-20 21:46:38 UTC
  • Revision ID: teddy@recompile.se-20140820214638-k4naueej6hffdgfg
mandos-client: Bug fix: Check fork() return value.

When executing network hook scripts, check fork() return value.

* plugins.d/mandos-client.c (run_network_hooks): Bug fix: check if
                                                 fork() returns -1.

Show diffs side-by-side

added added

removed removed

Lines of Context:
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 © 2008-2014 Teddy Hogeborn
 
7
# Copyright © 2008-2014 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
 
from future_builtins import *
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
30
33
 
31
34
import sys
32
 
import dbus
33
35
import argparse
34
36
import locale
35
37
import datetime
36
38
import re
37
39
import os
 
40
import collections
 
41
import doctest
 
42
 
 
43
import dbus
 
44
 
 
45
if sys.version_info.major == 2:
 
46
    str = unicode
38
47
 
39
48
locale.setlocale(locale.LC_ALL, "")
40
49
 
63
72
server_path = "/"
64
73
server_interface = domain + ".Mandos"
65
74
client_interface = domain + ".Mandos.Client"
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))
 
75
version = "1.6.8"
73
76
 
74
77
def milliseconds_to_string(ms):
75
78
    td = datetime.timedelta(0, 0, 0, ms)
76
79
    return ("{days}{hours:02}:{minutes:02}:{seconds:02}"
77
 
            .format(days = "{0}T".format(td.days) if td.days else "",
 
80
            .format(days = "{}T".format(td.days) if td.days else "",
78
81
                    hours = td.seconds // 3600,
79
82
                    minutes = (td.seconds % 3600) // 60,
80
83
                    seconds = td.seconds % 60,
81
84
                    ))
82
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
 
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
 
123
    # RFC 3339 "duration" tokens, syntax, and semantics; taken from
 
124
    # the "duration" ABNF definition in RFC 3339, Appendix A.
 
125
    token_end = Token(re.compile(r"$"), None, frozenset())
 
126
    token_second = Token(re.compile(r"(\d+)S"),
 
127
                         datetime.timedelta(seconds=1),
 
128
                         frozenset((token_end,)))
 
129
    token_minute = Token(re.compile(r"(\d+)M"),
 
130
                         datetime.timedelta(minutes=1),
 
131
                         frozenset((token_second, token_end)))
 
132
    token_hour = Token(re.compile(r"(\d+)H"),
 
133
                       datetime.timedelta(hours=1),
 
134
                       frozenset((token_minute, token_end)))
 
135
    token_time = Token(re.compile(r"T"),
 
136
                       None,
 
137
                       frozenset((token_hour, token_minute,
 
138
                                  token_second)))
 
139
    token_day = Token(re.compile(r"(\d+)D"),
 
140
                      datetime.timedelta(days=1),
 
141
                      frozenset((token_time, token_end)))
 
142
    token_month = Token(re.compile(r"(\d+)M"),
 
143
                        datetime.timedelta(weeks=4),
 
144
                        frozenset((token_day, token_end)))
 
145
    token_year = Token(re.compile(r"(\d+)Y"),
 
146
                       datetime.timedelta(weeks=52),
 
147
                       frozenset((token_month, token_end)))
 
148
    token_week = Token(re.compile(r"(\d+)W"),
 
149
                       datetime.timedelta(weeks=1),
 
150
                       frozenset((token_end,)))
 
151
    token_duration = Token(re.compile(r"P"), None,
 
152
                           frozenset((token_year, token_month,
 
153
                                      token_day, token_time,
 
154
                                      token_week)))
 
155
    # Define starting values
 
156
    value = datetime.timedelta() # Value so far
 
157
    found_token = None
 
158
    followers = frozenset((token_duration,)) # Following valid tokens
 
159
    s = duration                # String left to parse
 
160
    # Loop until end token is found
 
161
    while found_token is not token_end:
 
162
        # Search for any currently valid tokens
 
163
        for token in followers:
 
164
            match = token.regexp.match(s)
 
165
            if match is not None:
 
166
                # Token found
 
167
                if token.value is not None:
 
168
                    # Value found, parse digits
 
169
                    factor = int(match.group(1), 10)
 
170
                    # Add to value so far
 
171
                    value += factor * token.value
 
172
                # Strip token from string
 
173
                s = token.regexp.sub("", s, 1)
 
174
                # Go to found token
 
175
                found_token = token
 
176
                # Set valid next tokens
 
177
                followers = found_token.followers
 
178
                break
 
179
        else:
 
180
            # No currently valid tokens were found
 
181
            raise ValueError("Invalid RFC 3339 duration")
 
182
    # End token found
 
183
    return value
 
184
 
 
185
 
83
186
def string_to_delta(interval):
84
187
    """Parse a string and return a datetime.timedelta
85
188
    
96
199
    >>> string_to_delta("5m 30s")
97
200
    datetime.timedelta(0, 330)
98
201
    """
 
202
    
 
203
    try:
 
204
        return rfc3339_duration_to_delta(interval)
 
205
    except ValueError:
 
206
        pass
 
207
    
99
208
    value = datetime.timedelta(0)
100
 
    regexp = re.compile("(\d+)([dsmhw]?)")
 
209
    regexp = re.compile(r"(\d+)([dsmhw]?)")
101
210
    
102
211
    for num, suffix in regexp.findall(interval):
103
212
        if suffix == "d":
121
230
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
122
231
                       "ApprovalDuration", "ExtendedTimeout"):
123
232
            return milliseconds_to_string(value)
124
 
        return unicode(value)
 
233
        return str(value)
125
234
    
126
235
    # Create format string to print table rows
127
236
    format_string = " ".join("{{{key}:{width}}}".format(
134
243
    # Print header line
135
244
    print(format_string.format(**tablewords))
136
245
    for client in clients:
137
 
        print(format_string.format(**dict((key,
 
246
        print(format_string.format(**{ key:
138
247
                                           valuetostring(client[key],
139
 
                                                         key))
140
 
                                          for key in keywords)))
 
248
                                                         key)
 
249
                                       for key in keywords }))
141
250
 
142
251
def has_actions(options):
143
252
    return any((options.enable,
162
271
def main():
163
272
    parser = argparse.ArgumentParser()
164
273
    parser.add_argument("--version", action="version",
165
 
                        version = "%(prog)s {0}".format(version),
 
274
                        version = "%(prog)s {}".format(version),
166
275
                        help="show version number and exit")
167
276
    parser.add_argument("-a", "--all", action="store_true",
168
277
                        help="Select all clients")
201
310
    parser.add_argument("--approval-duration",
202
311
                        help="Set duration of one client approval")
203
312
    parser.add_argument("-H", "--host", help="Set host for client")
204
 
    parser.add_argument("-s", "--secret", type=file,
 
313
    parser.add_argument("-s", "--secret",
 
314
                        type=argparse.FileType(mode="rb"),
205
315
                        help="Set password blob (file) for client")
206
316
    parser.add_argument("-A", "--approve", action="store_true",
207
317
                        help="Approve any current client request")
208
318
    parser.add_argument("-D", "--deny", action="store_true",
209
319
                        help="Deny any current client request")
 
320
    parser.add_argument("--check", action="store_true",
 
321
                        help="Run self-test")
210
322
    parser.add_argument("client", nargs="*", help="Client name")
211
323
    options = parser.parse_args()
212
324
    
217
329
                     " --all.")
218
330
    if options.all and not has_actions(options):
219
331
        parser.error("--all requires an action.")
 
332
 
 
333
    if options.check:
 
334
        fail_count, test_count = doctest.testmod()
 
335
        sys.exit(os.EX_OK if fail_count == 0 else 1)
220
336
    
221
337
    try:
222
338
        bus = dbus.SystemBus()
250
366
    clients={}
251
367
    
252
368
    if options.all or not options.client:
253
 
        clients = dict((bus.get_object(busname, path), properties)
254
 
                       for path, properties in
255
 
                       mandos_clients.iteritems())
 
369
        clients = { bus.get_object(busname, path): properties
 
370
                    for path, properties in mandos_clients.items() }
256
371
    else:
257
372
        for name in options.client:
258
 
            for path, client in mandos_clients.iteritems():
 
373
            for path, client in mandos_clients.items():
259
374
                if client["Name"] == name:
260
375
                    client_objc = bus.get_object(busname, path)
261
376
                    clients[client_objc] = client
262
377
                    break
263
378
            else:
264
 
                print("Client not found on server: {0!r}"
 
379
                print("Client not found on server: {!r}"
265
380
                      .format(name), file=sys.stderr)
266
381
                sys.exit(1)
267
382
    
290
405
                """Set a Client D-Bus property, converted
291
406
                from a string to milliseconds."""
292
407
                set_client_prop(prop,
293
 
                                timedelta_to_milliseconds
294
 
                                (string_to_delta(value)))
 
408
                                string_to_delta(value).total_seconds()
 
409
                                * 1000)
295
410
            if options.remove:
296
411
                mandos_serv.RemoveClient(client.__dbus_object_path__)
297
412
            if options.enable: