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  • Committer: Teddy Hogeborn
  • Date: 2009-02-09 02:01:13 UTC
  • Revision ID: teddy@fukt.bsnet.se-20090209020113-726hq380zvp8zt97
Four new interrelated features:

1. Support using a different network interface via both initramfs.conf
   (the DEVICE setting) and the kernel command line (sixth field of
   the "ip=" option as in Linux' Documentation/nfsroot.txt).

2. Support connecting to a specified Mandos server directly using a
   kernel command line option ("mandos=connect:<ADDRESS>:<PORT>").

3. Support connecting directly to an IPv4 address (and port) using the
   "--connect" option of mandos-client.

4. Support an empty string to the --interface option to mandos-client.

* Makefile (WARN): Increase strictness by changing to
                   "-Wstrict-aliasing=1".

* debian/mandos-client.README.Debian (Use the Correct Network
  Interface): Changed to refer to initramfs.conf and nfsroot.txt.
  (Test the Server): Improve wording.
  (Non-local Connection): New section.
* initramfs-tools-script: Obey DEVICE environment variable and setting
                          from "/conf/initramfs.conf".  Also let any
                          "ip=" kernel command line option override
                          it.  Support new "mandos=connect" option.
                          Call "configure_networking" to set up IP
                          address on interface if necessary.
* plugin-runner.conf: Change example.
* plugins.d/mandos-client.c: Some whitespace and comment changes.
  (start_mandos_communication): Take an additional argument for
                                address family, all callers changed.
                                Connect to an IPv4 address if address
                                family is AF_INET.  Only set IPv6
                                scope_id for link-local addresses.
  (main): Accept empty interface name; this will not bring up any
         interface and leave the interface as unspecified.  Also do
         not restore kernel log level if lowering it failed.
* plugins.d/mandos-client.xml (OPTIONS): Document that the
                                         "--interface" option accepts
                                         an empty string.
  (EXAMPLE): Change example IPv6 address to a link-local address.

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Lines of Context:
mandos-ctl
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
# 
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
# 
6
 
# Copyright © 2008-2010 Teddy Hogeborn
7
 
# Copyright © 2008-2010 Björn Påhlsson
8
 
# 
9
 
# This program is free software: you can redistribute it and/or modify
10
 
# it under the terms of the GNU General Public License as published by
11
 
# the Free Software Foundation, either version 3 of the License, or
12
 
# (at your option) any later version.
13
 
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
 
#     GNU General Public License for more details.
18
 
# 
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/>.
21
 
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
23
 
# 
24
 
 
25
 
from __future__ import (division, absolute_import, print_function,
26
 
                        unicode_literals)
27
 
 
 
3
 
 
4
from __future__ import division
28
5
import sys
29
6
import dbus
30
7
from optparse import OptionParser
31
8
import locale
32
9
import datetime
33
10
import re
34
 
import os
35
11
 
36
 
locale.setlocale(locale.LC_ALL, "")
 
12
locale.setlocale(locale.LC_ALL, u'')
37
13
 
38
14
tablewords = {
39
 
    "Name": "Name",
40
 
    "Enabled": "Enabled",
41
 
    "Timeout": "Timeout",
42
 
    "LastCheckedOK": "Last Successful Check",
43
 
    "LastApprovalRequest": "Last Approval Request",
44
 
    "Created": "Created",
45
 
    "Interval": "Interval",
46
 
    "Host": "Host",
47
 
    "Fingerprint": "Fingerprint",
48
 
    "CheckerRunning": "Check Is Running",
49
 
    "LastEnabled": "Last Enabled",
50
 
    "ApprovalPending": "Approval Is Pending",
51
 
    "ApprovedByDefault": "Approved By Default",
52
 
    "ApprovalDelay": "Approval Delay",
53
 
    "ApprovalDuration": "Approval Duration",
54
 
    "Checker": "Checker",
 
15
    'name': u'Name',
 
16
    'enabled': u'Enabled',
 
17
    'timeout': u'Timeout',
 
18
    'last_checked_ok': u'Last Successful Check',
 
19
    'created': u'Created',
 
20
    'interval': u'Interval',
 
21
    'host': u'Host',
 
22
    'fingerprint': u'Fingerprint',
 
23
    'checker_running': u'Check Is Running',
 
24
    'last_enabled': u'Last Enabled',
 
25
    'checker': u'Checker',
55
26
    }
56
 
defaultkeywords = ("Name", "Enabled", "Timeout", "LastCheckedOK")
57
 
domain = "se.bsnet.fukt"
58
 
busname = domain + ".Mandos"
59
 
server_path = "/"
60
 
server_interface = domain + ".Mandos"
61
 
client_interface = domain + ".Mandos.Client"
62
 
version = "1.3.0"
63
 
 
64
 
def timedelta_to_milliseconds(td):
65
 
    """Convert a datetime.timedelta object to milliseconds"""
66
 
    return ((td.days * 24 * 60 * 60 * 1000)
67
 
            + (td.seconds * 1000)
68
 
            + (td.microseconds // 1000))
 
27
defaultkeywords = ('name', 'enabled', 'timeout', 'last_checked_ok',
 
28
                   'checker')
 
29
busname = 'org.mandos-system.Mandos'
 
30
server_path = '/Mandos'
 
31
server_interface = 'org.mandos_system.Mandos'
 
32
client_interface = 'org.mandos_system.Mandos.Client'
 
33
version = "1.0.5"
 
34
 
 
35
bus = dbus.SystemBus()
 
36
mandos_dbus_objc = bus.get_object(busname, server_path)
 
37
mandos_serv = dbus.Interface(mandos_dbus_objc,
 
38
                             dbus_interface = server_interface)
 
39
mandos_clients = mandos_serv.GetAllClientsWithProperties()
 
40
 
 
41
def datetime_to_milliseconds(dt):
 
42
    "Return the 'timeout' attribute in milliseconds"
 
43
    return ((dt.days * 24 * 60 * 60 * 1000)
 
44
            + (dt.seconds * 1000)
 
45
            + (dt.microseconds // 1000))
69
46
 
70
47
def milliseconds_to_string(ms):
71
48
    td = datetime.timedelta(0, 0, 0, ms)
72
 
    return ("%(days)s%(hours)02d:%(minutes)02d:%(seconds)02d"
73
 
            % { "days": "%dT" % td.days if td.days else "",
74
 
                "hours": td.seconds // 3600,
75
 
                "minutes": (td.seconds % 3600) // 60,
76
 
                "seconds": td.seconds % 60,
77
 
                })
 
49
    return "%s%02d:%02d:%02d" % (("%dT" % td.days) if td.days else "", # days
 
50
                           td.seconds // 3600,        # hours
 
51
                           (td.seconds % 3600) // 60, # minutes
 
52
                           (td.seconds % 60))         # seconds
78
53
 
79
54
 
80
55
def string_to_delta(interval):
81
56
    """Parse a string and return a datetime.timedelta
82
57
 
83
 
    >>> string_to_delta("7d")
 
58
    >>> string_to_delta('7d')
84
59
    datetime.timedelta(7)
85
 
    >>> string_to_delta("60s")
 
60
    >>> string_to_delta('60s')
86
61
    datetime.timedelta(0, 60)
87
 
    >>> string_to_delta("60m")
 
62
    >>> string_to_delta('60m')
88
63
    datetime.timedelta(0, 3600)
89
 
    >>> string_to_delta("24h")
 
64
    >>> string_to_delta('24h')
90
65
    datetime.timedelta(1)
91
 
    >>> string_to_delta("1w")
 
66
    >>> string_to_delta(u'1w')
92
67
    datetime.timedelta(7)
93
 
    >>> string_to_delta("5m 30s")
 
68
    >>> string_to_delta('5m 30s')
94
69
    datetime.timedelta(0, 330)
95
70
    """
96
71
    timevalue = datetime.timedelta(0)
100
75
        try:
101
76
            suffix = unicode(s[-1])
102
77
            value = int(s[:-1])
103
 
            if suffix == "d":
 
78
            if suffix == u"d":
104
79
                delta = datetime.timedelta(value)
105
 
            elif suffix == "s":
 
80
            elif suffix == u"s":
106
81
                delta = datetime.timedelta(0, value)
107
 
            elif suffix == "m":
 
82
            elif suffix == u"m":
108
83
                delta = datetime.timedelta(0, 0, 0, 0, value)
109
 
            elif suffix == "h":
 
84
            elif suffix == u"h":
110
85
                delta = datetime.timedelta(0, 0, 0, 0, 0, value)
111
 
            elif suffix == "w":
 
86
            elif suffix == u"w":
112
87
                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
113
88
            else:
114
89
                raise ValueError
117
92
        timevalue += delta
118
93
    return timevalue
119
94
 
120
 
def print_clients(clients, keywords):
 
95
def print_clients(clients):
121
96
    def valuetostring(value, keyword):
122
97
        if type(value) is dbus.Boolean:
123
 
            return "Yes" if value else "No"
124
 
        if keyword in ("Timeout", "Interval", "ApprovalDelay",
125
 
                       "ApprovalDuration"):
 
98
            return u"Yes" if value else u"No"
 
99
        if keyword in ("timeout", "interval"):
126
100
            return milliseconds_to_string(value)
127
101
        return unicode(value)
128
102
    
129
 
    # Create format string to print table rows
130
 
    format_string = " ".join("%%-%ds" %
131
 
                             max(len(tablewords[key]),
132
 
                                 max(len(valuetostring(client[key],
133
 
                                                       key))
134
 
                                     for client in
135
 
                                     clients))
136
 
                             for key in keywords)
137
 
    # Print header line
138
 
    print(format_string % tuple(tablewords[key] for key in keywords))
 
103
    format_string = u' '.join(u'%%-%ds' %
 
104
                              max(len(tablewords[key]),
 
105
                                  max(len(valuetostring(client[key], key))
 
106
                                      for client in
 
107
                                      clients))
 
108
                              for key in keywords)
 
109
    print format_string % tuple(tablewords[key] for key in keywords) 
139
110
    for client in clients:
140
 
        print(format_string % tuple(valuetostring(client[key], key)
141
 
                                    for key in keywords))
142
 
 
143
 
def has_actions(options):
144
 
    return any((options.enable,
145
 
                options.disable,
146
 
                options.bump_timeout,
147
 
                options.start_checker,
148
 
                options.stop_checker,
149
 
                options.is_enabled,
150
 
                options.remove,
151
 
                options.checker is not None,
152
 
                options.timeout is not None,
153
 
                options.interval is not None,
154
 
                options.approved_by_default is not None,
155
 
                options.approval_delay is not None,
156
 
                options.approval_duration is not None,
157
 
                options.host is not None,
158
 
                options.secret is not None,
159
 
                options.approve,
160
 
                options.deny))
161
 
        
162
 
def main():
163
 
        parser = OptionParser(version = "%%prog %s" % version)
164
 
        parser.add_option("-a", "--all", action="store_true",
165
 
                          help="Select all clients")
166
 
        parser.add_option("-v", "--verbose", action="store_true",
167
 
                          help="Print all fields")
168
 
        parser.add_option("-e", "--enable", action="store_true",
169
 
                          help="Enable client")
170
 
        parser.add_option("-d", "--disable", action="store_true",
171
 
                          help="disable client")
172
 
        parser.add_option("-b", "--bump-timeout", action="store_true",
173
 
                          help="Bump timeout for client")
174
 
        parser.add_option("--start-checker", action="store_true",
175
 
                          help="Start checker for client")
176
 
        parser.add_option("--stop-checker", action="store_true",
177
 
                          help="Stop checker for client")
178
 
        parser.add_option("-V", "--is-enabled", action="store_true",
179
 
                          help="Check if client is enabled")
180
 
        parser.add_option("-r", "--remove", action="store_true",
181
 
                          help="Remove client")
182
 
        parser.add_option("-c", "--checker", type="string",
183
 
                          help="Set checker command for client")
184
 
        parser.add_option("-t", "--timeout", type="string",
185
 
                          help="Set timeout for client")
186
 
        parser.add_option("-i", "--interval", type="string",
187
 
                          help="Set checker interval for client")
188
 
        parser.add_option("--approve-by-default", action="store_true",
189
 
                          dest="approved_by_default",
190
 
                          help="Set client to be approved by default")
191
 
        parser.add_option("--deny-by-default", action="store_false",
192
 
                          dest="approved_by_default",
193
 
                          help="Set client to be denied by default")
194
 
        parser.add_option("--approval-delay", type="string",
195
 
                          help="Set delay before client approve/deny")
196
 
        parser.add_option("--approval-duration", type="string",
197
 
                          help="Set duration of one client approval")
198
 
        parser.add_option("-H", "--host", type="string",
199
 
                          help="Set host for client")
200
 
        parser.add_option("-s", "--secret", type="string",
201
 
                          help="Set password blob (file) for client")
202
 
        parser.add_option("-A", "--approve", action="store_true",
203
 
                          help="Approve any current client request")
204
 
        parser.add_option("-D", "--deny", action="store_true",
205
 
                          help="Deny any current client request")
206
 
        options, client_names = parser.parse_args()
207
 
        
208
 
        if has_actions(options) and not client_names and not options.all:
209
 
            parser.error("Options require clients names or --all.")
210
 
        if options.verbose and has_actions(options):
211
 
            parser.error("--verbose can only be used alone or with"
212
 
                         " --all.")
213
 
        if options.all and not has_actions(options):
214
 
            parser.error("--all requires an action.")
215
 
        
216
 
        try:
217
 
            bus = dbus.SystemBus()
218
 
            mandos_dbus_objc = bus.get_object(busname, server_path)
219
 
        except dbus.exceptions.DBusException:
220
 
            print("Could not connect to Mandos server",
221
 
                  file=sys.stderr)
222
 
            sys.exit(1)
 
111
        print format_string % tuple(valuetostring(client[key], key)
 
112
                                    for key in keywords)
 
113
 
 
114
parser = OptionParser(version = "%%prog %s" % version)
 
115
parser.add_option("-a", "--all", action="store_true",
 
116
                  help="Print all fields")
 
117
parser.add_option("-e", "--enable", action="store_true",
 
118
                  help="Enable client")
 
119
parser.add_option("-d", "--disable", action="store_true",
 
120
                  help="disable client")
 
121
parser.add_option("-b", "--bump-timeout", action="store_true",
 
122
                  help="Bump timeout for client")
 
123
parser.add_option("--start-checker", action="store_true",
 
124
                  help="Start checker for client")
 
125
parser.add_option("--stop-checker", action="store_true",
 
126
                  help="Stop checker for client")
 
127
parser.add_option("-V", "--is-valid", action="store_true",
 
128
                  help="Check if client is still valid")
 
129
parser.add_option("-r", "--remove", action="store_true",
 
130
                  help="Remove client")
 
131
parser.add_option("-c", "--checker", type="string",
 
132
                  help="Set checker command for client")
 
133
parser.add_option("-t", "--timeout", type="string",
 
134
                  help="Set timeout for client")
 
135
parser.add_option("-i", "--interval", type="string",
 
136
                  help="Set checker interval for client")
 
137
parser.add_option("-H", "--host", type="string",
 
138
                  help="Set host for client")
 
139
parser.add_option("-s", "--secret", type="string",
 
140
                  help="Set password blob (file) for client")
 
141
options, client_names = parser.parse_args()
 
142
 
 
143
# Compile list of clients to process
 
144
clients=[]
 
145
for name in client_names:
 
146
    for path, client in mandos_clients.iteritems():
 
147
        if client['name'] == name:
 
148
            client_objc = bus.get_object(busname, path)
 
149
            clients.append(dbus.Interface(client_objc,
 
150
                                          dbus_interface
 
151
                                          = client_interface))
 
152
            break
 
153
    else:
 
154
        print >> sys.stderr, "Client not found on server: %r" % name
 
155
        sys.exit(1)
 
156
 
 
157
if not clients and mandos_clients.values():
 
158
    keywords = defaultkeywords
 
159
    if options.all:
 
160
        keywords = ('name', 'enabled', 'timeout', 'last_checked_ok',
 
161
                    'created', 'interval', 'host', 'fingerprint',
 
162
                    'checker_running', 'last_enabled', 'checker')
 
163
    print_clients(mandos_clients.values())
 
164
 
 
165
# Process each client in the list by all selected options
 
166
for client in clients:
 
167
    if options.remove:
 
168
        mandos_serv.RemoveClient(client.__dbus_object_path__)
 
169
    if options.enable:
 
170
        client.Enable()
 
171
    if options.disable:
 
172
        client.Disable()
 
173
    if options.bump_timeout:
 
174
        client.BumpTimeout()
 
175
    if options.start_checker:
 
176
        client.StartChecker()
 
177
    if options.stop_checker:
 
178
        client.StopChecker()
 
179
    if options.is_valid:
 
180
        sys.exit(0 if client.IsStillValid() else 1)
 
181
    if options.checker:
 
182
        client.SetChecker(options.checker)
 
183
    if options.host:
 
184
        client.SetHost(options.host)
 
185
    if options.interval:
 
186
        client.SetInterval(datetime_to_milliseconds
 
187
                           (string_to_delta(options.interval)))
 
188
    if options.timeout:
 
189
        client.SetTimeout(datetime_to_milliseconds
 
190
                          (string_to_delta(options.timeout)))
 
191
    if options.secret:
 
192
        client.SetSecret(dbus.ByteArray(open(options.secret, 'rb').read()))
223
193
    
224
 
        mandos_serv = dbus.Interface(mandos_dbus_objc,
225
 
                                     dbus_interface = server_interface)
226
 
 
227
 
        #block stderr since dbus library prints to stderr
228
 
        null = os.open(os.path.devnull, os.O_RDWR)
229
 
        stderrcopy = os.dup(sys.stderr.fileno())
230
 
        os.dup2(null, sys.stderr.fileno())
231
 
        os.close(null)
232
 
        try:
233
 
            try:
234
 
                mandos_clients = mandos_serv.GetAllClientsWithProperties()
235
 
            finally:
236
 
                #restore stderr
237
 
                os.dup2(stderrcopy, sys.stderr.fileno())
238
 
                os.close(stderrcopy)
239
 
        except dbus.exceptions.DBusException, e:
240
 
            print("Access denied: Accessing mandos server through dbus.",
241
 
                  file=sys.stderr)
242
 
            sys.exit(1)
243
 
            
244
 
        # Compile dict of (clients: properties) to process
245
 
        clients={}
246
 
        
247
 
        if options.all or not client_names:
248
 
            clients = dict((bus.get_object(busname, path), properties)
249
 
                           for path, properties in
250
 
                           mandos_clients.iteritems())
251
 
        else:
252
 
            for name in client_names:
253
 
                for path, client in mandos_clients.iteritems():
254
 
                    if client["Name"] == name:
255
 
                        client_objc = bus.get_object(busname, path)
256
 
                        clients[client_objc] = client
257
 
                        break
258
 
                else:
259
 
                    print("Client not found on server: %r" % name,
260
 
                          file=sys.stderr)
261
 
                    sys.exit(1)
262
 
            
263
 
        if not has_actions(options) and clients:
264
 
            if options.verbose:
265
 
                keywords = ("Name", "Enabled", "Timeout",
266
 
                            "LastCheckedOK", "Created", "Interval",
267
 
                            "Host", "Fingerprint", "CheckerRunning",
268
 
                            "LastEnabled", "ApprovalPending",
269
 
                            "ApprovedByDefault",
270
 
                            "LastApprovalRequest", "ApprovalDelay",
271
 
                            "ApprovalDuration", "Checker")
272
 
            else:
273
 
                keywords = defaultkeywords
274
 
            
275
 
            print_clients(clients.values(), keywords)
276
 
        else:
277
 
            # Process each client in the list by all selected options
278
 
            for client in clients:
279
 
                if options.remove:
280
 
                    mandos_serv.RemoveClient(client.__dbus_object_path__)
281
 
                if options.enable:
282
 
                    client.Enable(dbus_interface=client_interface)
283
 
                if options.disable:
284
 
                    client.Disable(dbus_interface=client_interface)
285
 
                if options.bump_timeout:
286
 
                    client.CheckedOK(dbus_interface=client_interface)
287
 
                if options.start_checker:
288
 
                    client.StartChecker(dbus_interface=client_interface)
289
 
                if options.stop_checker:
290
 
                    client.StopChecker(dbus_interface=client_interface)
291
 
                if options.is_enabled:
292
 
                    sys.exit(0 if client.Get(client_interface,
293
 
                                             "Enabled",
294
 
                                             dbus_interface=dbus.PROPERTIES_IFACE)
295
 
                             else 1)
296
 
                if options.checker:
297
 
                    client.Set(client_interface, "Checker", options.checker,
298
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
299
 
                if options.host:
300
 
                    client.Set(client_interface, "Host", options.host,
301
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
302
 
                if options.interval:
303
 
                    client.Set(client_interface, "Interval",
304
 
                               timedelta_to_milliseconds
305
 
                               (string_to_delta(options.interval)),
306
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
307
 
                if options.approval_delay:
308
 
                    client.Set(client_interface, "ApprovalDelay",
309
 
                               timedelta_to_milliseconds
310
 
                               (string_to_delta(options.
311
 
                                                approval_delay)),
312
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
313
 
                if options.approval_duration:
314
 
                    client.Set(client_interface, "ApprovalDuration",
315
 
                               timedelta_to_milliseconds
316
 
                               (string_to_delta(options.
317
 
                                                approval_duration)),
318
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
319
 
                if options.timeout:
320
 
                    client.Set(client_interface, "Timeout",
321
 
                               timedelta_to_milliseconds
322
 
                               (string_to_delta(options.timeout)),
323
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
324
 
                if options.secret:
325
 
                    client.Set(client_interface, "Secret",
326
 
                               dbus.ByteArray(open(options.secret,
327
 
                                                   "rb").read()),
328
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
329
 
                if options.approved_by_default is not None:
330
 
                    client.Set(client_interface, "ApprovedByDefault",
331
 
                               dbus.Boolean(options
332
 
                                            .approved_by_default),
333
 
                               dbus_interface=dbus.PROPERTIES_IFACE)
334
 
                if options.approve:
335
 
                    client.Approve(dbus.Boolean(True),
336
 
                                   dbus_interface=client_interface)
337
 
                elif options.deny:
338
 
                    client.Approve(dbus.Boolean(False),
339
 
                                   dbus_interface=client_interface)
340
 
 
341
 
if __name__ == "__main__":
342
 
    main()