|
1
|
<?php
|
|
2
|
/*
|
|
3
|
vpn.inc
|
|
4
|
Copyright (C) 2004-2006 Scott Ullrich
|
|
5
|
All rights reserved.
|
|
6
|
|
|
7
|
originally part of m0n0wall (http://m0n0.ch/wall)
|
|
8
|
Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
|
|
9
|
All rights reserved.
|
|
10
|
|
|
11
|
Redistribution and use in source and binary forms, with or without
|
|
12
|
modification, are permitted provided that the following conditions are met:
|
|
13
|
|
|
14
|
1. Redistributions of source code must retain the above copyright notice,
|
|
15
|
this list of conditions and the following disclaimer.
|
|
16
|
|
|
17
|
2. Redistributions in binary form must reproduce the above copyright
|
|
18
|
notice, this list of conditions and the following disclaimer in the
|
|
19
|
documentation and/or other materials provided with the distribution.
|
|
20
|
|
|
21
|
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
22
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
23
|
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
24
|
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
25
|
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
26
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
27
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
28
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
29
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
30
|
POSSIBILITY OF SUCH DAMAGE.
|
|
31
|
*/
|
|
32
|
|
|
33
|
/* include all configuration functions */
|
|
34
|
require_once("functions.inc");
|
|
35
|
|
|
36
|
/* master setup for vpn (mpd) */
|
|
37
|
function vpn_setup() {
|
|
38
|
/* start pptpd */
|
|
39
|
vpn_pptpd_configure();
|
|
40
|
|
|
41
|
/* start pppoe server */
|
|
42
|
vpn_pppoe_configure();
|
|
43
|
}
|
|
44
|
|
|
45
|
function vpn_ipsec_failover_configure() {
|
|
46
|
global $config, $g;
|
|
47
|
|
|
48
|
$sasyncd_text = "";
|
|
49
|
|
|
50
|
if($config['installedpackages']['sasyncd']['config'] <> "")
|
|
51
|
foreach($config['installedpackages']['sasyncd']['config'] as $sasyncd) {
|
|
52
|
$enabled = isset($sasyncd['enable']);
|
|
53
|
if(!$enabled)
|
|
54
|
return;
|
|
55
|
if($sasyncd['peerip'] <> "")
|
|
56
|
$sasyncd_text .= "peer {$sasyncd['peerip']}\n";
|
|
57
|
if($sasyncd['interface'])
|
|
58
|
$sasyncd_text .= "carp interface {$sasyncd['interface']}\n";
|
|
59
|
if($sasyncd['sharedkey'] <> "")
|
|
60
|
$sasyncd_text .= "sharedkey {$sasyncd['sharedkey']}\n";
|
|
61
|
if($sasyncd['mode'] <> "")
|
|
62
|
$sasyncd_text .= "mode {$sasyncd['mode']}\n";
|
|
63
|
if($sasyncd['listenon'] <> "")
|
|
64
|
$sasyncd_text .= "listen on {$sasyncd['listenon']}\n";
|
|
65
|
if($sasyncd['flushmodesync'] <> "")
|
|
66
|
$sasyncd_text .= "flushmode sync {$sasyncd['flushmodesync']}\n";
|
|
67
|
}
|
|
68
|
|
|
69
|
$fd = fopen("{$g['varetc_path']}/sasyncd.conf", "w");
|
|
70
|
fwrite($fd, $sasyncd_text);
|
|
71
|
fclose($fd);
|
|
72
|
chmod("{$g['varetc_path']}/sasyncd.conf", 0600);
|
|
73
|
|
|
74
|
mwexec("killall sasyncd", true);
|
|
75
|
|
|
76
|
/* launch sasyncd, oh wise one */
|
|
77
|
/* mwexec_bg("/usr/local/sbin/sasyncd -d -v -v -v"); */
|
|
78
|
}
|
|
79
|
|
|
80
|
function find_last_gif_device() {
|
|
81
|
$regs = "";
|
|
82
|
$last_gif_found = -1;
|
|
83
|
if (!($fp = popen("/sbin/ifconfig -l", "r"))) return -1;
|
|
84
|
$ifconfig_data = fread($fp, 4096);
|
|
85
|
pclose($fp);
|
|
86
|
$ifconfig_array = split(" ", $ifconfig_data);
|
|
87
|
foreach ($ifconfig_array as $ifconfig) {
|
|
88
|
ereg("gif(.)", $ifconfig, $regs);
|
|
89
|
if($regs[0]) {
|
|
90
|
if($regs[0] > $last_gif_found)
|
|
91
|
$last_gif_found = $regs[1];
|
|
92
|
}
|
|
93
|
}
|
|
94
|
return $last_gif_found;
|
|
95
|
}
|
|
96
|
|
|
97
|
function vpn_ipsec_configure($ipchg = false) {
|
|
98
|
global $config, $g, $sa, $sn;
|
|
99
|
|
|
100
|
mwexec("/sbin/ifconfig enc0 create", true);
|
|
101
|
mwexec("/sbin/ifconfig enc0 up", true);
|
|
102
|
|
|
103
|
exec("/sbin/sysctl net.enc.out.ipsec_bpf_mask=0x00000000");
|
|
104
|
exec("/sbin/sysctl net.enc.out.ipsec_filter_mask=0x00000001");
|
|
105
|
exec("/sbin/sysctl net.enc.in.ipsec_bpf_mask=0x00000000");
|
|
106
|
exec("/sbin/sysctl net.enc.in.ipsec_filter_mask=0x00000002");
|
|
107
|
|
|
108
|
/* get the automatic /etc/ping_hosts.sh ready */
|
|
109
|
unlink_if_exists("/var/db/ipsecpinghosts");
|
|
110
|
touch("/var/db/ipsecpinghosts");
|
|
111
|
|
|
112
|
if(isset($config['ipsec']['preferredoldsa'])) {
|
|
113
|
mwexec("/sbin/sysctl net.key.preferred_oldsa=0");
|
|
114
|
} else {
|
|
115
|
mwexec("/sbin/sysctl -w net.key.preferred_oldsa=-30");
|
|
116
|
}
|
|
117
|
|
|
118
|
$number_of_gifs = find_last_gif_device();
|
|
119
|
for($x=0; $x<$number_of_gifs; $x++) {
|
|
120
|
mwexec("/sbin/ifconfig gif" . $x . " delete");
|
|
121
|
}
|
|
122
|
|
|
123
|
$curwanip = get_current_wan_address();
|
|
124
|
|
|
125
|
$syscfg = $config['system'];
|
|
126
|
$ipseccfg = $config['ipsec'];
|
|
127
|
$lancfg = $config['interfaces']['lan'];
|
|
128
|
$lanip = $lancfg['ipaddr'];
|
|
129
|
$lansa = gen_subnet($lancfg['ipaddr'], $lancfg['subnet']);
|
|
130
|
$lansn = $lancfg['subnet'];
|
|
131
|
|
|
132
|
if (!isset($ipseccfg['enable'])) {
|
|
133
|
mwexec("/sbin/ifconfig enc0 down");
|
|
134
|
mwexec("/sbin/ifconfig enc0 destroy");
|
|
135
|
|
|
136
|
/* kill racoon */
|
|
137
|
mwexec("/usr/bin/killall racoon", true);
|
|
138
|
killbypid("{$g['varrun_path']}/dnswatch-ipsec.pid");
|
|
139
|
|
|
140
|
|
|
141
|
/* wait for process to die */
|
|
142
|
sleep(2);
|
|
143
|
|
|
144
|
/* send a SIGKILL to be sure */
|
|
145
|
sigkillbypid("{$g['varrun_path']}/racoon.pid", "KILL");
|
|
146
|
|
|
147
|
/* flush SPD and SAD */
|
|
148
|
mwexec("/usr/local/sbin/setkey -FP");
|
|
149
|
mwexec("/usr/local/sbin/setkey -F");
|
|
150
|
|
|
151
|
return true;
|
|
152
|
}
|
|
153
|
|
|
154
|
if ($g['booting']) {
|
|
155
|
echo "Configuring IPsec VPN... ";
|
|
156
|
}
|
|
157
|
|
|
158
|
if (isset($ipseccfg['enable'])) {
|
|
159
|
|
|
160
|
/* fastforwarding is not compatible with ipsec tunnels */
|
|
161
|
mwexec("/sbin/sysctl net.inet.ip.fastforwarding=0");
|
|
162
|
|
|
163
|
if (!$curwanip) {
|
|
164
|
/* IP address not configured yet, exit */
|
|
165
|
if ($g['booting'])
|
|
166
|
echo "done\n";
|
|
167
|
return 0;
|
|
168
|
}
|
|
169
|
|
|
170
|
/* this loads a route table which is used to determine if a route needs to be removed. */
|
|
171
|
exec("/usr/bin/netstat -rn", $route_arr, $retval);
|
|
172
|
$route_str = implode("\n", $route_arr);
|
|
173
|
|
|
174
|
if ((is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel'])) ||
|
|
175
|
isset($ipseccfg['mobileclients']['enable'])) {
|
|
176
|
|
|
177
|
$dnswatch_list = array();
|
|
178
|
$rgmap = array();
|
|
179
|
|
|
180
|
if (is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel'])) {
|
|
181
|
|
|
182
|
/* generate spd.conf */
|
|
183
|
$fd = fopen("{$g['varetc_path']}/spd.conf", "w");
|
|
184
|
if (!$fd) {
|
|
185
|
printf("Error: cannot open spd.conf in vpn_ipsec_configure().\n");
|
|
186
|
return 1;
|
|
187
|
}
|
|
188
|
|
|
189
|
$spdconf = "";
|
|
190
|
|
|
191
|
$spdconf .= "spdadd {$lansa}/{$lansn} {$lanip}/32 any -P in none;\n";
|
|
192
|
$spdconf .= "spdadd {$lanip}/32 {$lansa}/{$lansn} any -P out none;\n";
|
|
193
|
|
|
194
|
foreach ($ipseccfg['tunnel'] as $tunnel) {
|
|
195
|
|
|
196
|
if (isset($tunnel['disabled']))
|
|
197
|
continue;
|
|
198
|
|
|
199
|
$ep = vpn_endpoint_determine($tunnel, $curwanip);
|
|
200
|
/* see if this tunnel has a hostname for the remote-gateway, and if so,
|
|
201
|
* try to resolve it now and add it to the list for dnswatch */
|
|
202
|
if (!is_ipaddr($tunnel['remote-gateway'])) {
|
|
203
|
$dnswatch_list[] = $tunnel['remote-gateway'];
|
|
204
|
$rgip = resolve_retry($tunnel['remote-gateway']);
|
|
205
|
add_hostname_to_watch($tunnel['remote-gateway']);
|
|
206
|
if (!$rgip) {
|
|
207
|
log_error("Could not deterimine VPN endpoint for {$tunnel['descr']}");
|
|
208
|
continue;
|
|
209
|
}
|
|
210
|
} else {
|
|
211
|
$rgip = $tunnel['remote-gateway'];
|
|
212
|
}
|
|
213
|
$rgmap[$tunnel['remote-gateway']] = $rgip;
|
|
214
|
if (!$ep) {
|
|
215
|
log_error("Could not deterimine VPN endpoint for {$tunnel['descr']}");
|
|
216
|
continue;
|
|
217
|
}
|
|
218
|
|
|
219
|
|
|
220
|
vpn_localnet_determine($tunnel['local-subnet'], $sa, $sn);
|
|
221
|
|
|
222
|
if(is_domain($tunnel['remote-gateway'])) {
|
|
223
|
$tmp = gethostbyname($tunnel['remote-gateway']);
|
|
224
|
if($tmp) {
|
|
225
|
$tunnel['remote-gateway'] = $tmp;
|
|
226
|
}
|
|
227
|
}
|
|
228
|
|
|
229
|
/* add entry to host pinger */
|
|
230
|
if ($tunnel['pinghost']) {
|
|
231
|
$pfd = fopen("/var/db/ipsecpinghosts", "a");
|
|
232
|
$iflist = array("lan" => "lan", "wan" => "wan");
|
|
233
|
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++)
|
|
234
|
$iflist['opt' . $i] = "opt{$i}";
|
|
235
|
|
|
236
|
foreach ($iflist as $ifent => $ifname) {
|
|
237
|
$interface_ip = find_interface_ip($config['interfaces'][$ifname]['if']);
|
|
238
|
if (ip_in_subnet($interface_ip, $sa . "/" . $sn))
|
|
239
|
$srcip = find_interface_ip($config['interfaces'][$ifname]['if']);
|
|
240
|
}
|
|
241
|
$dstip = $tunnel['pinghost'];
|
|
242
|
fwrite($pfd, "$srcip|$dstip|3\n");
|
|
243
|
fclose($pfd);
|
|
244
|
}
|
|
245
|
if(isset($tunnel['creategif'])) {
|
|
246
|
$number_of_gifs = find_last_gif_device();
|
|
247
|
$number_of_gifs++;
|
|
248
|
$curwanip = get_current_wan_address();
|
|
249
|
|
|
250
|
mwexec("/sbin/ifconfig gif" . $number_of_gifs . " tunnel" . $curwanip . " " . $tunnel['remote-gateway']);
|
|
251
|
mwexec("/sbin/ifconfig gif" . $number_of_gifs . " {$lansa}/{$lansn} {$lanip}/32");
|
|
252
|
}
|
|
253
|
|
|
254
|
$spdconf .= "spdadd {$sa}/{$sn} " .
|
|
255
|
"{$tunnel['remote-subnet']} any -P out ipsec " .
|
|
256
|
"{$tunnel['p2']['protocol']}/tunnel/{$ep}-" .
|
|
257
|
"{$tunnel['remote-gateway']}/unique;\n";
|
|
258
|
|
|
259
|
$spdconf .= "spdadd {$tunnel['remote-subnet']} " .
|
|
260
|
"{$sa}/{$sn} any -P in ipsec " .
|
|
261
|
"{$tunnel['p2']['protocol']}/tunnel/{$tunnel['remote-gateway']}-" .
|
|
262
|
"{$ep}/unique;\n";
|
|
263
|
|
|
264
|
/* static route needed? */
|
|
265
|
if(preg_match("/^carp/i", $tunnel['interface'])) {
|
|
266
|
$parentinterface = link_carp_interface_to_parent($tunnel['interface']);
|
|
267
|
} else {
|
|
268
|
$parentinterface = $tunnel['interface'];
|
|
269
|
}
|
|
270
|
if($parentinterface <> "wan") {
|
|
271
|
/* add endpoint routes to correct gateway on interface */
|
|
272
|
if(interface_has_gateway($parentinterface)) {
|
|
273
|
$gatewayip = get_interface_gateway("$parentinterface");
|
|
274
|
$interfaceip = $config['interfaces'][$parentinterface]['ipaddr'];
|
|
275
|
$subnet_bits = $config['interfaces'][$parentinterface]['subnet'];
|
|
276
|
$subnet_ip = gen_subnet("{$interfaceip}", "{$subnet_bits}");
|
|
277
|
/* if the remote gateway is in the local subnet, then don't add a route */
|
|
278
|
if(! ip_in_subnet($tunnel['remote-gateway'], "{$subnet_ip}/{$subnet_bits}")) {
|
|
279
|
if(is_ipaddr($gatewayip)) {
|
|
280
|
log_error("IPSEC interface is not WAN but {$parentinterface}, adding static route for VPN endpoint {$tunnel['remote-gateway']} via {$gatewayip}");
|
|
281
|
mwexec("/sbin/route delete -host {$tunnel['remote-gateway']}");
|
|
282
|
mwexec("/sbin/route add -host {$tunnel['remote-gateway']} {$gatewayip}");
|
|
283
|
}
|
|
284
|
}
|
|
285
|
}
|
|
286
|
} else {
|
|
287
|
if(stristr($route_str, "{$tunnel['remote-gateway']}")) {
|
|
288
|
mwexec("/sbin/route delete -host {$tunnel['remote-gateway']}");
|
|
289
|
}
|
|
290
|
}
|
|
291
|
}
|
|
292
|
|
|
293
|
fwrite($fd, $spdconf);
|
|
294
|
fclose($fd);
|
|
295
|
}
|
|
296
|
|
|
297
|
/* generate racoon.conf */
|
|
298
|
$fd = fopen("{$g['varetc_path']}/racoon.conf", "w");
|
|
299
|
if (!$fd) {
|
|
300
|
printf("Error: cannot open racoon.conf in vpn_ipsec_configure().\n");
|
|
301
|
return 1;
|
|
302
|
}
|
|
303
|
|
|
304
|
$racoonconf = "# This file is automatically generated. Do not edit\n";
|
|
305
|
$racoonconf .= "listen {\n";
|
|
306
|
$racoonconf .= " adminsock \"/var/db/racoon/racoon.sock\" \"root\" \"wheel\" 0660;\n";
|
|
307
|
$racoonconf .= "}\n";
|
|
308
|
|
|
309
|
$racoonconf .= "path pre_shared_key \"{$g['varetc_path']}/psk.txt\";\n\n";
|
|
310
|
$racoonconf .= "path certificate \"{$g['varetc_path']}\";\n\n";
|
|
311
|
|
|
312
|
/* generate CA certificates files */
|
|
313
|
$cacertnum = 0;
|
|
314
|
if (is_array($ipseccfg['cacert']) && count($ipseccfg['cacert']))
|
|
315
|
foreach ($ipseccfg['cacert'] as $cacert) {
|
|
316
|
++$cacertnum;
|
|
317
|
if (isset($cacert['cert'])) {
|
|
318
|
$cert = base64_decode($cacert['cert']);
|
|
319
|
$x509cert = openssl_x509_parse(openssl_x509_read($cert));
|
|
320
|
if(is_array($x509cert) && isset($x509cert['hash'])) {
|
|
321
|
$fd1 = fopen("{$g['varetc_path']}/{$x509cert['hash']}.0", "w");
|
|
322
|
if (!$fd1) {
|
|
323
|
printf("Error: cannot open {$x509cert['hash']}.0 in vpn.\n");
|
|
324
|
return 1;
|
|
325
|
}
|
|
326
|
chmod("{$g['varetc_path']}/{$x509cert['hash']}.0", 0600);
|
|
327
|
fwrite($fd1, $cert);
|
|
328
|
fclose($fd1);
|
|
329
|
}
|
|
330
|
}
|
|
331
|
}
|
|
332
|
|
|
333
|
$tunnelnumber = 0;
|
|
334
|
if (is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel']))
|
|
335
|
foreach ($ipseccfg['tunnel'] as $tunnel) {
|
|
336
|
|
|
337
|
++$tunnelnumber;
|
|
338
|
|
|
339
|
if (isset($tunnel['disabled']))
|
|
340
|
continue;
|
|
341
|
|
|
342
|
$rgip = $rgmap[$tunnel['remote-gateway']];
|
|
343
|
if (!$rgip)
|
|
344
|
continue;
|
|
345
|
|
|
346
|
$ep = vpn_endpoint_determine($tunnel, $curwanip);
|
|
347
|
if (!$ep)
|
|
348
|
continue;
|
|
349
|
|
|
350
|
vpn_localnet_determine($tunnel['local-subnet'], $sa, $sn);
|
|
351
|
|
|
352
|
if (isset($tunnel['p1']['myident']['myaddress'])) {
|
|
353
|
$myidentt = "address";
|
|
354
|
$myident = $ep;
|
|
355
|
} else if (isset($tunnel['p1']['myident']['address'])) {
|
|
356
|
$myidentt = "address";
|
|
357
|
$myident = $tunnel['p1']['myident']['address'];
|
|
358
|
} else if (isset($tunnel['p1']['myident']['fqdn'])) {
|
|
359
|
$myidentt = "fqdn";
|
|
360
|
$myident = $tunnel['p1']['myident']['fqdn'];
|
|
361
|
} else if (isset($tunnel['p1']['myident']['ufqdn'])) {
|
|
362
|
$myidentt = "user_fqdn";
|
|
363
|
$myident = $tunnel['p1']['myident']['ufqdn'];
|
|
364
|
} else if (isset($tunnel['p1']['myident']['dyn_dns'])) {
|
|
365
|
$myidentt = "dyn_dns";
|
|
366
|
$myident = gethostbyname($tunnel['p1']['myident']['dyn_dns']);
|
|
367
|
}
|
|
368
|
|
|
369
|
if (!($myidentt == "asn1dn" && $myident == "")) {
|
|
370
|
$myident = " \"".$myident."\"";
|
|
371
|
}
|
|
372
|
|
|
373
|
$nattline = '';
|
|
374
|
if (isset($tunnel['natt'])) {
|
|
375
|
$nattline = "nat_traversal on;";
|
|
376
|
}
|
|
377
|
|
|
378
|
$dpdline = '';
|
|
379
|
if (is_numeric($tunnel['dpddelay'])) {
|
|
380
|
$dpdline = "dpd_delay {$tunnel['dpddelay']};";
|
|
381
|
}
|
|
382
|
|
|
383
|
if (isset($tunnel['p1']['authentication_method'])) {
|
|
384
|
$authmethod = $tunnel['p1']['authentication_method'];
|
|
385
|
} else {$authmethod = 'pre_shared_key';}
|
|
386
|
|
|
387
|
$certline = '';
|
|
388
|
|
|
389
|
if ($authmethod == 'rsasig') {
|
|
390
|
if ($tunnel['p1']['cert'] && $tunnel['p1']['private-key']) {
|
|
391
|
$cert = base64_decode($tunnel['p1']['cert']);
|
|
392
|
$private_key = base64_decode($tunnel['p1']['private-key']);
|
|
393
|
} else {
|
|
394
|
/* null certificate/key */
|
|
395
|
$cert = '';
|
|
396
|
$private_key = '';
|
|
397
|
}
|
|
398
|
|
|
399
|
if ($tunnel['p1']['peercert'])
|
|
400
|
$peercert = base64_decode($tunnel['p1']['peercert']);
|
|
401
|
else
|
|
402
|
$peercert = '';
|
|
403
|
|
|
404
|
$fd1 = fopen("{$g['varetc_path']}/server{$tunnelnumber}-signed.pem", "w");
|
|
405
|
if (!$fd1) {
|
|
406
|
printf("Error: cannot open server{$tunnelnumber}-signed.pem in vpn.\n");
|
|
407
|
return 1;
|
|
408
|
}
|
|
409
|
chmod("{$g['varetc_path']}/server{$tunnelnumber}-signed.pem", 0600);
|
|
410
|
fwrite($fd1, $cert);
|
|
411
|
fclose($fd1);
|
|
412
|
|
|
413
|
$fd1 = fopen("{$g['varetc_path']}/server{$tunnelnumber}-key.pem", "w");
|
|
414
|
if (!$fd1) {
|
|
415
|
printf("Error: cannot open server{$tunnelnumber}-key.pem in vpn.\n");
|
|
416
|
return 1;
|
|
417
|
}
|
|
418
|
chmod("{$g['varetc_path']}/server{$tunnelnumber}-key.pem", 0600);
|
|
419
|
fwrite($fd1, $private_key);
|
|
420
|
fclose($fd1);
|
|
421
|
|
|
422
|
$certline = "certificate_type x509 \"server{$tunnelnumber}-signed.pem\" \"server{$tunnelnumber}-key.pem\";";
|
|
423
|
|
|
424
|
if ($peercert!=''){
|
|
425
|
$fd1 = fopen("{$g['varetc_path']}/peer{$tunnelnumber}-signed.pem", "w");
|
|
426
|
if (!$fd1) {
|
|
427
|
printf("Error: cannot open server{$tunnelnumber}-signed.pem in vpn.\n");
|
|
428
|
return 1;
|
|
429
|
}
|
|
430
|
chmod("{$g['varetc_path']}/peer{$tunnelnumber}-signed.pem", 0600);
|
|
431
|
fwrite($fd1, $peercert);
|
|
432
|
fclose($fd1);
|
|
433
|
$certline .= <<<EOD
|
|
434
|
|
|
435
|
peers_certfile "peer{$tunnelnumber}-signed.pem";
|
|
436
|
EOD;
|
|
437
|
}
|
|
438
|
}
|
|
439
|
$racoonconf .= <<<EOD
|
|
440
|
remote {$rgmap[$tunnel['remote-gateway']]} \{
|
|
441
|
exchange_mode {$tunnel['p1']['mode']};
|
|
442
|
my_identifier {$myidentt}{$myident};
|
|
443
|
{$nattline}
|
|
444
|
{$certline}
|
|
445
|
peers_identifier address {$rgmap[$tunnel['remote-gateway']]};
|
|
446
|
initial_contact on;
|
|
447
|
{$dpdline}
|
|
448
|
ike_frag on;
|
|
449
|
support_proxy on;
|
|
450
|
proposal_check obey;
|
|
451
|
|
|
452
|
proposal \{
|
|
453
|
encryption_algorithm {$tunnel['p1']['encryption-algorithm']};
|
|
454
|
hash_algorithm {$tunnel['p1']['hash-algorithm']};
|
|
455
|
authentication_method {$authmethod};
|
|
456
|
dh_group {$tunnel['p1']['dhgroup']};
|
|
457
|
|
|
458
|
EOD;
|
|
459
|
if ($tunnel['p1']['lifetime'])
|
|
460
|
$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
|
|
461
|
|
|
462
|
$racoonconf .= " }\n";
|
|
463
|
|
|
464
|
if ($tunnel['p1']['lifetime'])
|
|
465
|
$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
|
|
466
|
|
|
467
|
$racoonconf .= "}\n\n";
|
|
468
|
|
|
469
|
$p2ealgos = join(",", $tunnel['p2']['encryption-algorithm-option']);
|
|
470
|
$p2halgos = join(",", $tunnel['p2']['hash-algorithm-option']);
|
|
471
|
|
|
472
|
$racoonconf .= <<<EOD
|
|
473
|
sainfo address {$sa}/{$sn} any address {$tunnel['remote-subnet']} any \{
|
|
474
|
encryption_algorithm {$p2ealgos};
|
|
475
|
authentication_algorithm {$p2halgos};
|
|
476
|
compression_algorithm deflate;
|
|
477
|
|
|
478
|
EOD;
|
|
479
|
|
|
480
|
if ($tunnel['p2']['pfsgroup'])
|
|
481
|
$racoonconf .= " pfs_group {$tunnel['p2']['pfsgroup']};\n";
|
|
482
|
|
|
483
|
if ($tunnel['p2']['lifetime'])
|
|
484
|
$racoonconf .= " lifetime time {$tunnel['p2']['lifetime']} secs;\n";
|
|
485
|
|
|
486
|
$racoonconf .= "}\n\n";
|
|
487
|
}
|
|
488
|
|
|
489
|
/* mobile clients? */
|
|
490
|
if (isset($ipseccfg['mobileclients']['enable'])) {
|
|
491
|
|
|
492
|
$tunnel = $ipseccfg['mobileclients'];
|
|
493
|
|
|
494
|
if (isset($tunnel['p1']['myident']['myaddress'])) {
|
|
495
|
$myidentt = "address ";
|
|
496
|
$myident = $curwanip;
|
|
497
|
} else if (isset($tunnel['p1']['myident']['address'])) {
|
|
498
|
$myidentt = "address ";
|
|
499
|
$myident = $tunnel['p1']['myident']['address'];
|
|
500
|
} else if (isset($tunnel['p1']['myident']['fqdn'])) {
|
|
501
|
$myidentt = "fqdn ";
|
|
502
|
$myident = $tunnel['p1']['myident']['fqdn'];
|
|
503
|
} else if (isset($tunnel['p1']['myident']['ufqdn'])) {
|
|
504
|
$myidentt = "user_fqdn ";
|
|
505
|
$myident = $tunnel['p1']['myident']['ufqdn'];
|
|
506
|
}
|
|
507
|
|
|
508
|
$nattline = '';
|
|
509
|
if (isset($tunnel['natt'])) {
|
|
510
|
$nattline = "nat_traversal on;";
|
|
511
|
}
|
|
512
|
|
|
513
|
$dpdline = '';
|
|
514
|
if (is_numeric($tunnel['dpddelay'])) {
|
|
515
|
$dpdline = "dpd_delay {$tunnel['dpddelay']};";
|
|
516
|
}
|
|
517
|
|
|
518
|
if (isset($tunnel['p1']['authentication_method'])) {
|
|
519
|
$authmethod = $tunnel['p1']['authentication_method'];
|
|
520
|
} else {$authmethod = 'pre_shared_key';}
|
|
521
|
|
|
522
|
$certline = '';
|
|
523
|
if ($authmethod == 'rsasig') {
|
|
524
|
if ($tunnel['p1']['cert'] && $tunnel['p1']['private-key']) {
|
|
525
|
$cert = base64_decode($tunnel['p1']['cert']);
|
|
526
|
$private_key = base64_decode($tunnel['p1']['private-key']);
|
|
527
|
} else {
|
|
528
|
/* null certificate/key */
|
|
529
|
$cert = '';
|
|
530
|
$private_key = '';
|
|
531
|
}
|
|
532
|
|
|
533
|
if ($tunnel['p1']['peercert'])
|
|
534
|
$peercert = base64_decode($tunnel['p1']['peercert']);
|
|
535
|
else
|
|
536
|
$peercert = '';
|
|
537
|
|
|
538
|
$fd1 = fopen("{$g['varetc_path']}/server-mobile{$tunnelnumber}-signed.pem", "w");
|
|
539
|
if (!$fd1) {
|
|
540
|
printf("Error: cannot open server-mobile{$tunnelnumber}-signed.pem in vpn.\n");
|
|
541
|
return 1;
|
|
542
|
}
|
|
543
|
chmod("{$g['varetc_path']}/server-mobile{$tunnelnumber}-signed.pem", 0600);
|
|
544
|
fwrite($fd1, $cert);
|
|
545
|
fclose($fd1);
|
|
546
|
|
|
547
|
$fd1 = fopen("{$g['varetc_path']}/server-mobile{$tunnelnumber}-key.pem", "w");
|
|
548
|
if (!$fd1) {
|
|
549
|
printf("Error: cannot open server-mobile{$tunnelnumber}-key.pem in vpn.\n");
|
|
550
|
return 1;
|
|
551
|
}
|
|
552
|
chmod("{$g['varetc_path']}/server-mobile{$tunnelnumber}-key.pem", 0600);
|
|
553
|
fwrite($fd1, $private_key);
|
|
554
|
fclose($fd1);
|
|
555
|
|
|
556
|
$certline = "certificate_type x509 \"server-mobile{$tunnelnumber}-signed.pem\" \"server-mobile{$tunnelnumber}-key.pem\";";
|
|
557
|
}
|
|
558
|
$racoonconf .= <<<EOD
|
|
559
|
remote anonymous \{
|
|
560
|
exchange_mode {$tunnel['p1']['mode']};
|
|
561
|
my_identifier {$myidentt}"{$myident}";
|
|
562
|
{$nattline}
|
|
563
|
{$certline}
|
|
564
|
initial_contact on;
|
|
565
|
{$dpdline}
|
|
566
|
ike_frag on;
|
|
567
|
passive on;
|
|
568
|
generate_policy on;
|
|
569
|
support_proxy on;
|
|
570
|
proposal_check obey;
|
|
571
|
|
|
572
|
proposal \{
|
|
573
|
encryption_algorithm {$tunnel['p1']['encryption-algorithm']};
|
|
574
|
hash_algorithm {$tunnel['p1']['hash-algorithm']};
|
|
575
|
authentication_method {$authmethod};
|
|
576
|
dh_group {$tunnel['p1']['dhgroup']};
|
|
577
|
|
|
578
|
EOD;
|
|
579
|
if ($tunnel['p1']['lifetime'])
|
|
580
|
$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
|
|
581
|
|
|
582
|
$racoonconf .= " }\n";
|
|
583
|
|
|
584
|
if ($tunnel['p1']['lifetime'])
|
|
585
|
$racoonconf .= " lifetime time {$tunnel['p1']['lifetime']} secs;\n";
|
|
586
|
|
|
587
|
$racoonconf .= "}\n\n";
|
|
588
|
|
|
589
|
$p2ealgos = join(",", $tunnel['p2']['encryption-algorithm-option']);
|
|
590
|
$p2halgos = join(",", $tunnel['p2']['hash-algorithm-option']);
|
|
591
|
|
|
592
|
$racoonconf .= <<<EOD
|
|
593
|
sainfo anonymous \{
|
|
594
|
encryption_algorithm {$p2ealgos};
|
|
595
|
authentication_algorithm {$p2halgos};
|
|
596
|
compression_algorithm deflate;
|
|
597
|
|
|
598
|
EOD;
|
|
599
|
|
|
600
|
if ($tunnel['p2']['pfsgroup'])
|
|
601
|
$racoonconf .= " pfs_group {$tunnel['p2']['pfsgroup']};\n";
|
|
602
|
|
|
603
|
if ($tunnel['p2']['lifetime'])
|
|
604
|
$racoonconf .= " lifetime time {$tunnel['p2']['lifetime']} secs;\n";
|
|
605
|
|
|
606
|
$racoonconf .= "}\n\n";
|
|
607
|
}
|
|
608
|
|
|
609
|
fwrite($fd, $racoonconf);
|
|
610
|
fclose($fd);
|
|
611
|
|
|
612
|
/* generate psk.txt */
|
|
613
|
$fd = fopen("{$g['varetc_path']}/psk.txt", "w");
|
|
614
|
if (!$fd) {
|
|
615
|
printf("Error: cannot open psk.txt in vpn_ipsec_configure().\n");
|
|
616
|
return 1;
|
|
617
|
}
|
|
618
|
|
|
619
|
$pskconf = "";
|
|
620
|
|
|
621
|
if (is_array($ipseccfg['tunnel'])) {
|
|
622
|
foreach ($ipseccfg['tunnel'] as $tunnel) {
|
|
623
|
if (isset($tunnel['disabled']))
|
|
624
|
continue;
|
|
625
|
|
|
626
|
$rgip = $rgmap[$tunnel['remote-gateway']];
|
|
627
|
if (!$rgip)
|
|
628
|
continue;
|
|
629
|
|
|
630
|
$pskconf .= "{$rgip} {$tunnel['p1']['pre-shared-key']}\n";
|
|
631
|
}
|
|
632
|
}
|
|
633
|
|
|
634
|
/* add PSKs for mobile clients */
|
|
635
|
if (is_array($ipseccfg['mobilekey'])) {
|
|
636
|
foreach ($ipseccfg['mobilekey'] as $key) {
|
|
637
|
$pskconf .= "{$key['ident']} {$key['pre-shared-key']}\n";
|
|
638
|
}
|
|
639
|
}
|
|
640
|
|
|
641
|
fwrite($fd, $pskconf);
|
|
642
|
fclose($fd);
|
|
643
|
chmod("{$g['varetc_path']}/psk.txt", 0600);
|
|
644
|
|
|
645
|
exec("/bin/mkdir -p /var/db/racoon");
|
|
646
|
|
|
647
|
if(is_process_running("racoon")) {
|
|
648
|
log_error("IPSEC: Send a reload signal to the IPsec process");
|
|
649
|
sleep("0.1");
|
|
650
|
mwexec("/usr/local/sbin/racoonctl -s /var/db/racoon/racoon.sock reload-config", false);
|
|
651
|
// mwexec("/usr/bin/killall -HUP racoon", false);
|
|
652
|
} else {
|
|
653
|
/* flush SA + SPD entries */
|
|
654
|
mwexec("/usr/local/sbin/setkey -FP", false);
|
|
655
|
sleep("0.1");
|
|
656
|
mwexec("/usr/local/sbin/setkey -F", false);
|
|
657
|
sleep("0.1");
|
|
658
|
/* start racoon */
|
|
659
|
mwexec("/usr/local/sbin/racoon -f {$g['varetc_path']}/racoon.conf", false);
|
|
660
|
sleep("0.1");
|
|
661
|
/* load SPD */
|
|
662
|
mwexec("/usr/local/sbin/setkey -f {$g['varetc_path']}/spd.conf", false);
|
|
663
|
/* We are already online, reload */
|
|
664
|
sleep("0.1");
|
|
665
|
mwexec("/usr/local/sbin/racoonctl -s /var/db/racoon/racoon.sock reload-config", false);
|
|
666
|
}
|
|
667
|
|
|
668
|
/* start dnswatch, if necessary */
|
|
669
|
if (count($dnswatch_list) > 0) {
|
|
670
|
$interval = 60;
|
|
671
|
if ($ipseccfg['dns-interval'])
|
|
672
|
$interval = $ipseccfg['dns-interval'];
|
|
673
|
|
|
674
|
$hostnames = "";
|
|
675
|
foreach ($dnswatch_list as $dns)
|
|
676
|
$hostnames .= " " . escapeshellarg($dns);
|
|
677
|
killbypid("{$g['varrun_path']}/dnswatch-ipsec.pid");
|
|
678
|
mwexec("/usr/local/sbin/dnswatch {$g['varrun_path']}/dnswatch-ipsec.pid $interval " .
|
|
679
|
escapeshellarg("/etc/rc.newipsecdns") . $hostnames, false);
|
|
680
|
}
|
|
681
|
|
|
682
|
|
|
683
|
}
|
|
684
|
}
|
|
685
|
|
|
686
|
vpn_ipsec_failover_configure();
|
|
687
|
|
|
688
|
if (!$g['booting']) {
|
|
689
|
/* reload the filter */
|
|
690
|
touch("{$g["tmp_path"]}/filter_dirty");
|
|
691
|
}
|
|
692
|
|
|
693
|
if ($g['booting'])
|
|
694
|
echo "done\n";
|
|
695
|
|
|
696
|
return 0;
|
|
697
|
}
|
|
698
|
|
|
699
|
function vpn_pptpd_configure() {
|
|
700
|
global $config, $g;
|
|
701
|
|
|
702
|
$syscfg = $config['system'];
|
|
703
|
$pptpdcfg = $config['pptpd'];
|
|
704
|
|
|
705
|
if ($g['booting']) {
|
|
706
|
if (!$pptpdcfg['mode'] || ($pptpdcfg['mode'] == "off"))
|
|
707
|
return 0;
|
|
708
|
|
|
709
|
echo "Configuring PPTP VPN service... ";
|
|
710
|
} else {
|
|
711
|
/* kill mpd */
|
|
712
|
killbypid("{$g['varrun_path']}/mpd-vpn.pid");
|
|
713
|
|
|
714
|
/* wait for process to die */
|
|
715
|
sleep(3);
|
|
716
|
|
|
717
|
if(is_process_running("mpd -b")) {
|
|
718
|
killbypid("{$g['varrun_path']}/mpd-vpn.pid");
|
|
719
|
log_error("Could not kill mpd within 3 seconds. Trying again.");
|
|
720
|
}
|
|
721
|
|
|
722
|
/* remove mpd.conf, if it exists */
|
|
723
|
unlink_if_exists("{$g['varetc_path']}/mpd-vpn/mpd.conf");
|
|
724
|
unlink_if_exists("{$g['varetc_path']}/mpd-vpn/mpd.links");
|
|
725
|
unlink_if_exists("{$g['varetc_path']}/mpd-vpn/mpd.secret");
|
|
726
|
}
|
|
727
|
|
|
728
|
/* make sure mpd-vpn directory exists */
|
|
729
|
if (!file_exists("{$g['varetc_path']}/mpd-vpn"))
|
|
730
|
mkdir("{$g['varetc_path']}/mpd-vpn");
|
|
731
|
|
|
732
|
switch ($pptpdcfg['mode']) {
|
|
733
|
|
|
734
|
case 'server':
|
|
735
|
|
|
736
|
/* write mpd.conf */
|
|
737
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.conf", "w");
|
|
738
|
if (!$fd) {
|
|
739
|
printf("Error: cannot open mpd.conf in vpn_pptpd_configure().\n");
|
|
740
|
return 1;
|
|
741
|
}
|
|
742
|
|
|
743
|
$mpdconf = <<<EOD
|
|
744
|
pptpd:
|
|
745
|
|
|
746
|
EOD;
|
|
747
|
|
|
748
|
for ($i = 0; $i < $g['n_pptp_units']; $i++) {
|
|
749
|
$mpdconf .= " load pt{$i}\n";
|
|
750
|
}
|
|
751
|
|
|
752
|
for ($i = 0; $i < $g['n_pptp_units']; $i++) {
|
|
753
|
|
|
754
|
$clientip = long2ip(ip2long($pptpdcfg['remoteip']) + $i);
|
|
755
|
$ngif = "ng" . ($i+1);
|
|
756
|
|
|
757
|
$mpdconf .= <<<EOD
|
|
758
|
|
|
759
|
pt{$i}:
|
|
760
|
new -i {$ngif} pt{$i} pt{$i}
|
|
761
|
set ipcp ranges {$pptpdcfg['localip']}/32 {$clientip}/32
|
|
762
|
load pts
|
|
763
|
|
|
764
|
EOD;
|
|
765
|
}
|
|
766
|
|
|
767
|
$mpdconf .= <<<EOD
|
|
768
|
|
|
769
|
pts:
|
|
770
|
set iface disable on-demand
|
|
771
|
set iface enable proxy-arp
|
|
772
|
set iface enable tcpmssfix
|
|
773
|
set iface idle 1800
|
|
774
|
set iface up-script /usr/local/sbin/vpn-linkup
|
|
775
|
set iface down-script /usr/local/sbin/vpn-linkdown
|
|
776
|
set bundle enable multilink
|
|
777
|
set bundle enable crypt-reqd
|
|
778
|
set link yes acfcomp protocomp
|
|
779
|
set link no pap chap
|
|
780
|
set link enable chap-msv2
|
|
781
|
set link mtu 1460
|
|
782
|
set link keep-alive 10 60
|
|
783
|
set ipcp yes vjcomp
|
|
784
|
set bundle enable compression
|
|
785
|
set ccp yes mppc
|
|
786
|
set ccp yes mpp-e128
|
|
787
|
set ccp yes mpp-stateless
|
|
788
|
|
|
789
|
EOD;
|
|
790
|
|
|
791
|
if (!isset($pptpdcfg['req128'])) {
|
|
792
|
$mpdconf .= <<<EOD
|
|
793
|
set ccp yes mpp-e40
|
|
794
|
set ccp yes mpp-e56
|
|
795
|
|
|
796
|
EOD;
|
|
797
|
}
|
|
798
|
if (isset($pptpdcfg["wins"]))
|
|
799
|
$mpdconf .= " set ipcp nbns {$pptpdcfg['wins']}\n";
|
|
800
|
if (is_array($pptpdcfg['dnsserver']) && ($pptpdcfg['dnsserver'][0])) {
|
|
801
|
$mpdconf .= " set ipcp dns " . join(" ", $pptpdcfg['dnsserver']) . "\n";
|
|
802
|
} else if (isset($config['dnsmasq']['enable'])) {
|
|
803
|
$mpdconf .= " set ipcp dns " . $config['interfaces']['lan']['ipaddr'];
|
|
804
|
if ($syscfg['dnsserver'][0])
|
|
805
|
$mpdconf .= " " . $syscfg['dnsserver'][0];
|
|
806
|
$mpdconf .= "\n";
|
|
807
|
} else if (is_array($syscfg['dnsserver']) && ($syscfg['dnsserver'][0])) {
|
|
808
|
$mpdconf .= " set ipcp dns " . join(" ", $syscfg['dnsserver']) . "\n";
|
|
809
|
}
|
|
810
|
|
|
811
|
if (isset($pptpdcfg['radius']['enable'])) {
|
|
812
|
$mpdconf .= <<<EOD
|
|
813
|
set radius server {$pptpdcfg['radius']['server']} "{$pptpdcfg['radius']['secret']}"
|
|
814
|
set radius retries 3
|
|
815
|
set radius timeout 10
|
|
816
|
set bundle enable radius-auth
|
|
817
|
set bundle disable radius-fallback
|
|
818
|
|
|
819
|
EOD;
|
|
820
|
|
|
821
|
if (isset($pptpdcfg['radius']['accounting'])) {
|
|
822
|
$mpdconf .= <<<EOD
|
|
823
|
set bundle enable radius-acct
|
|
824
|
|
|
825
|
EOD;
|
|
826
|
}
|
|
827
|
}
|
|
828
|
|
|
829
|
fwrite($fd, $mpdconf);
|
|
830
|
fclose($fd);
|
|
831
|
|
|
832
|
/* write mpd.links */
|
|
833
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.links", "w");
|
|
834
|
if (!$fd) {
|
|
835
|
printf("Error: cannot open mpd.links in vpn_pptpd_configure().\n");
|
|
836
|
return 1;
|
|
837
|
}
|
|
838
|
|
|
839
|
$mpdlinks = "";
|
|
840
|
|
|
841
|
for ($i = 0; $i < $g['n_pptp_units']; $i++) {
|
|
842
|
$mpdlinks .= <<<EOD
|
|
843
|
|
|
844
|
pt{$i}:
|
|
845
|
set link type pptp
|
|
846
|
set pptp enable incoming
|
|
847
|
set pptp disable originate
|
|
848
|
set pptp disable windowing
|
|
849
|
set pptp self 127.0.0.1
|
|
850
|
|
|
851
|
EOD;
|
|
852
|
}
|
|
853
|
|
|
854
|
fwrite($fd, $mpdlinks);
|
|
855
|
fclose($fd);
|
|
856
|
|
|
857
|
/* write mpd.secret */
|
|
858
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.secret", "w");
|
|
859
|
if (!$fd) {
|
|
860
|
printf("Error: cannot open mpd.secret in vpn_pptpd_configure().\n");
|
|
861
|
return 1;
|
|
862
|
}
|
|
863
|
|
|
864
|
$mpdsecret = "";
|
|
865
|
|
|
866
|
if (is_array($pptpdcfg['user'])) {
|
|
867
|
foreach ($pptpdcfg['user'] as $user)
|
|
868
|
$mpdsecret .= "{$user['name']} \"{$user['password']}\" {$user['ip']}\n";
|
|
869
|
}
|
|
870
|
|
|
871
|
fwrite($fd, $mpdsecret);
|
|
872
|
fclose($fd);
|
|
873
|
chmod("{$g['varetc_path']}/mpd-vpn/mpd.secret", 0600);
|
|
874
|
|
|
875
|
/* fire up mpd */
|
|
876
|
mwexec("/usr/local/sbin/mpd -b -d {$g['varetc_path']}/mpd-vpn -p {$g['varrun_path']}/mpd-vpn.pid pptpd");
|
|
877
|
|
|
878
|
break;
|
|
879
|
|
|
880
|
case 'redir':
|
|
881
|
break;
|
|
882
|
}
|
|
883
|
|
|
884
|
if (!$g['booting']) {
|
|
885
|
/* reload the filter */
|
|
886
|
filter_configure();
|
|
887
|
}
|
|
888
|
|
|
889
|
if ($g['booting'])
|
|
890
|
echo "done\n";
|
|
891
|
|
|
892
|
return 0;
|
|
893
|
}
|
|
894
|
|
|
895
|
function vpn_localnet_determine($adr, &$sa, &$sn) {
|
|
896
|
global $config, $g;
|
|
897
|
|
|
898
|
if (isset($adr)) {
|
|
899
|
if ($adr['network']) {
|
|
900
|
switch ($adr['network']) {
|
|
901
|
case 'lan':
|
|
902
|
$sn = $config['interfaces']['lan']['subnet'];
|
|
903
|
$sa = gen_subnet($config['interfaces']['lan']['ipaddr'], $sn);
|
|
904
|
break;
|
|
905
|
}
|
|
906
|
} else if ($adr['address']) {
|
|
907
|
list($sa,$sn) = explode("/", $adr['address']);
|
|
908
|
if (is_null($sn))
|
|
909
|
$sn = 32;
|
|
910
|
}
|
|
911
|
} else {
|
|
912
|
$sn = $config['interfaces']['lan']['subnet'];
|
|
913
|
$sa = gen_subnet($config['interfaces']['lan']['ipaddr'], $sn);
|
|
914
|
}
|
|
915
|
}
|
|
916
|
|
|
917
|
function vpn_endpoint_determine($tunnel, $curwanip) {
|
|
918
|
global $g, $config;
|
|
919
|
|
|
920
|
if(!$tunnel['interface']) {
|
|
921
|
return null;
|
|
922
|
}
|
|
923
|
if(is_ipaddr($curwanip)) {
|
|
924
|
if(preg_match("/^carp/i", $tunnel['interface'])) {
|
|
925
|
$iface = $tunnel['interface'];
|
|
926
|
} else {
|
|
927
|
if($config['interfaces'][$tunnel['interface']]['ipaddr'] == "pppoe" OR
|
|
928
|
$config['interfaces'][$tunnel['interface']]['ipaddr'] == "pptp") {
|
|
929
|
$iface = "ng0";
|
|
930
|
} else {
|
|
931
|
$iface = $config['interfaces'][$tunnel['interface']]['if'];
|
|
932
|
}
|
|
933
|
}
|
|
934
|
$oc = $config['interfaces'][$tunnel['interface']];
|
|
935
|
/* carp ips, etc */
|
|
936
|
$ip = find_interface_ip($iface);
|
|
937
|
if($ip)
|
|
938
|
return $ip;
|
|
939
|
|
|
940
|
if (isset($oc['enable']) && $oc['if']) {
|
|
941
|
return $oc['ipaddr'];
|
|
942
|
}
|
|
943
|
}
|
|
944
|
return null;
|
|
945
|
}
|
|
946
|
|
|
947
|
function vpn_pppoe_configure() {
|
|
948
|
global $config, $g;
|
|
949
|
|
|
950
|
$syscfg = $config['system'];
|
|
951
|
$pppoecfg = $config['pppoe'];
|
|
952
|
|
|
953
|
/* create directory if it does not exist */
|
|
954
|
if(!is_dir("{$g['varetc_path']}/mpd-vpn"))
|
|
955
|
mkdir("{$g['varetc_path']}/mpd-vpn");
|
|
956
|
|
|
957
|
if ($g['booting']) {
|
|
958
|
if (!$pppoecfg['mode'] || ($pppoecfg['mode'] == "off"))
|
|
959
|
return 0;
|
|
960
|
|
|
961
|
echo "Configuring PPPoE VPN service... ";
|
|
962
|
}
|
|
963
|
|
|
964
|
/* make sure mpd-vpn directory exists */
|
|
965
|
if (!file_exists("{$g['varetc_path']}/mpd-vpn"))
|
|
966
|
mkdir("{$g['varetc_path']}/mpd-vpn");
|
|
967
|
|
|
968
|
switch ($pppoecfg['mode']) {
|
|
969
|
|
|
970
|
case 'server':
|
|
971
|
|
|
972
|
$pppoe_interface = filter_translate_type_to_real_interface($pppoecfg['interface']);
|
|
973
|
|
|
974
|
/* write mpd.conf */
|
|
975
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.conf", "a");
|
|
976
|
if (!$fd) {
|
|
977
|
printf("Error: cannot open mpd.conf in vpn_pppoe_configure().\n");
|
|
978
|
return 1;
|
|
979
|
}
|
|
980
|
$mpdconf = "\n\n";
|
|
981
|
$mpdconf .= <<<EOD
|
|
982
|
pppoe:
|
|
983
|
|
|
984
|
EOD;
|
|
985
|
|
|
986
|
for ($i = 0; $i < $pppoecfg['n_pppoe_units']; $i++) {
|
|
987
|
$mpdconf .= " load pppoe{$i}\n";
|
|
988
|
}
|
|
989
|
|
|
990
|
for ($i = 0; $i < $pppoecfg['n_pppoe_units']; $i++) {
|
|
991
|
|
|
992
|
$clientip = long2ip(ip2long($pppoecfg['remoteip']) + $i);
|
|
993
|
$ngif = "ng" . ($i+1);
|
|
994
|
|
|
995
|
if(isset($pppoecfg['radius']['radiusissueips']) && isset($pppoecfg['radius']['enable'])) {
|
|
996
|
$isssue_ip_type = "set ipcp ranges {$pppoecfg['localip']}/32 0.0.0.0/0";
|
|
997
|
$isssue_ip_type .="\n\tset ipcp yes radius-ip";
|
|
998
|
} else {
|
|
999
|
$isssue_ip_type = "set ipcp ranges {$pppoecfg['localip']}/32 {$clientip}/32";
|
|
1000
|
}
|
|
1001
|
|
|
1002
|
$mpdconf .= <<<EOD
|
|
1003
|
|
|
1004
|
pppoe{$i}:
|
|
1005
|
new -i {$ngif} pppoe{$i} pppoe{$i}
|
|
1006
|
{$isssue_ip_type}
|
|
1007
|
load pppoe_standart
|
|
1008
|
|
|
1009
|
EOD;
|
|
1010
|
}
|
|
1011
|
|
|
1012
|
$mpdconf .= <<<EOD
|
|
1013
|
|
|
1014
|
pppoe_standart:
|
|
1015
|
set link type pppoe
|
|
1016
|
set pppoe iface {$pppoe_interface}
|
|
1017
|
set pppoe service "*"
|
|
1018
|
set pppoe disable originate
|
|
1019
|
set pppoe enable incoming
|
|
1020
|
set bundle no multilink
|
|
1021
|
set bundle enable compression
|
|
1022
|
set bundle max-logins 1
|
|
1023
|
set iface idle 0
|
|
1024
|
set iface disable on-demand
|
|
1025
|
set iface disable proxy-arp
|
|
1026
|
set iface enable tcpmssfix
|
|
1027
|
set iface mtu 1500
|
|
1028
|
set link no pap chap
|
|
1029
|
set link enable chap
|
|
1030
|
set link keep-alive 60 180
|
|
1031
|
set ipcp yes vjcomp
|
|
1032
|
set ipcp no vjcomp
|
|
1033
|
set link max-redial -1
|
|
1034
|
set link mtu 1492
|
|
1035
|
set link mru 1492
|
|
1036
|
set ccp yes mpp-e40
|
|
1037
|
set ccp yes mpp-e128
|
|
1038
|
set ccp yes mpp-stateless
|
|
1039
|
set link latency 1
|
|
1040
|
#set ipcp dns 10.10.1.3
|
|
1041
|
#set bundle accept encryption
|
|
1042
|
|
|
1043
|
EOD;
|
|
1044
|
|
|
1045
|
if (isset($config['dnsmasq']['enable'])) {
|
|
1046
|
$mpdconf .= " set ipcp dns " . $config['interfaces']['lan']['ipaddr'];
|
|
1047
|
if ($syscfg['dnsserver'][0])
|
|
1048
|
$mpdconf .= " " . $syscfg['dnsserver'][0];
|
|
1049
|
$mpdconf .= "\n";
|
|
1050
|
} else if (is_array($syscfg['dnsserver']) && ($syscfg['dnsserver'][0])) {
|
|
1051
|
$mpdconf .= " set ipcp dns " . join(" ", $syscfg['dnsserver']) . "\n";
|
|
1052
|
}
|
|
1053
|
|
|
1054
|
if (isset($pppoecfg['radius']['enable'])) {
|
|
1055
|
$mpdconf .= <<<EOD
|
|
1056
|
set radius server {$pppoecfg['radius']['server']} "{$pppoecfg['radius']['secret']}"
|
|
1057
|
set radius retries 3
|
|
1058
|
set radius timeout 10
|
|
1059
|
set bundle enable radius-auth
|
|
1060
|
set bundle disable radius-fallback
|
|
1061
|
|
|
1062
|
EOD;
|
|
1063
|
|
|
1064
|
if (isset($pppoecfg['radius']['accounting'])) {
|
|
1065
|
$mpdconf .= <<<EOD
|
|
1066
|
set bundle enable radius-acct
|
|
1067
|
set radius acct-update 300
|
|
1068
|
EOD;
|
|
1069
|
}
|
|
1070
|
}
|
|
1071
|
|
|
1072
|
fwrite($fd, $mpdconf);
|
|
1073
|
fclose($fd);
|
|
1074
|
|
|
1075
|
/* write mpd.links */
|
|
1076
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.links", "a");
|
|
1077
|
if (!$fd) {
|
|
1078
|
printf("Error: cannot open mpd.links in vpn_pppoe_configure().\n");
|
|
1079
|
return 1;
|
|
1080
|
}
|
|
1081
|
|
|
1082
|
$mpdlinks = "";
|
|
1083
|
|
|
1084
|
for ($i = 0; $i < $pppoecfg['n_pppoe_units']; $i++) {
|
|
1085
|
$mpdlinks .= <<<EOD
|
|
1086
|
|
|
1087
|
pppoe:
|
|
1088
|
set link type pppoe
|
|
1089
|
set pppoe iface {$pppoe_interface}
|
|
1090
|
|
|
1091
|
EOD;
|
|
1092
|
}
|
|
1093
|
|
|
1094
|
fwrite($fd, $mpdlinks);
|
|
1095
|
fclose($fd);
|
|
1096
|
|
|
1097
|
/* write mpd.secret */
|
|
1098
|
$fd = fopen("{$g['varetc_path']}/mpd-vpn/mpd.secret", "a");
|
|
1099
|
if (!$fd) {
|
|
1100
|
printf("Error: cannot open mpd.secret in vpn_pppoe_configure().\n");
|
|
1101
|
return 1;
|
|
1102
|
}
|
|
1103
|
|
|
1104
|
$mpdsecret = "\n\n";
|
|
1105
|
|
|
1106
|
if (is_array($pppoecfg['user'])) {
|
|
1107
|
foreach ($pppoecfg['user'] as $user)
|
|
1108
|
$mpdsecret .= "{$user['name']} \"{$user['password']}\" {$user['ip']}\n";
|
|
1109
|
}
|
|
1110
|
|
|
1111
|
fwrite($fd, $mpdsecret);
|
|
1112
|
fclose($fd);
|
|
1113
|
chmod("{$g['varetc_path']}/mpd-vpn/mpd.secret", 0600);
|
|
1114
|
|
|
1115
|
/* fire up mpd */
|
|
1116
|
mwexec("/usr/local/sbin/mpd -b -d {$g['varetc_path']}/mpd-vpn -p {$g['varrun_path']}/mpd-vpn.pid pppoe");
|
|
1117
|
|
|
1118
|
break;
|
|
1119
|
|
|
1120
|
case 'redir':
|
|
1121
|
break;
|
|
1122
|
}
|
|
1123
|
|
|
1124
|
touch("{$g["tmp_path"]}/filter_dirty");
|
|
1125
|
|
|
1126
|
if ($g['booting'])
|
|
1127
|
echo "done\n";
|
|
1128
|
|
|
1129
|
return 0;
|
|
1130
|
}
|
|
1131
|
|
|
1132
|
/* Forcefully restart IPSEC
|
|
1133
|
* This is required for when dynamic interfaces reload
|
|
1134
|
* For all other occasions the normal vpn_ipsec_configure()
|
|
1135
|
* will gracefully reload the settings without restarting
|
|
1136
|
*/
|
|
1137
|
function vpn_ipsec_force_reload() {
|
|
1138
|
global $config;
|
|
1139
|
global $g;
|
|
1140
|
|
|
1141
|
$ipseccfg = $config['ipsec'];
|
|
1142
|
|
|
1143
|
/* kill racoon */
|
|
1144
|
mwexec("/usr/bin/killall racoon", true);
|
|
1145
|
|
|
1146
|
/* wait for process to die */
|
|
1147
|
sleep(4);
|
|
1148
|
|
|
1149
|
/* send a SIGKILL to be sure */
|
|
1150
|
sigkillbypid("{$g['varrun_path']}/racoon.pid", "KILL");
|
|
1151
|
|
|
1152
|
/* wait for flushing to finish */
|
|
1153
|
sleep(1);
|
|
1154
|
|
|
1155
|
/* if ipsec is enabled, start up again */
|
|
1156
|
if (isset($ipseccfg['enable'])) {
|
|
1157
|
log_error("Forcefully reloading IPSEC racoon daemon");
|
|
1158
|
vpn_ipsec_configure();
|
|
1159
|
}
|
|
1160
|
|
|
1161
|
}
|
|
1162
|
|
|
1163
|
/* Walk the tunnels for hostname endpoints. If the hostnames
|
|
1164
|
* resolve to a different IP now compared to the DNS cache
|
|
1165
|
* we reload the policies if the endpoint has changed */
|
|
1166
|
function vpn_ipsec_refresh_policies() {
|
|
1167
|
global $config;
|
|
1168
|
global $g;
|
|
1169
|
|
|
1170
|
$ipseccfg = $config['ipsec'];
|
|
1171
|
|
|
1172
|
if (! isset($ipseccfg['enable'])) {
|
|
1173
|
return true;
|
|
1174
|
}
|
|
1175
|
|
|
1176
|
/* Walk the Ipsec tunnel array */
|
|
1177
|
if (is_array($ipseccfg['tunnel']) && count($ipseccfg['tunnel'])) {
|
|
1178
|
foreach ($ipseccfg['tunnel'] as $tunnel) {
|
|
1179
|
if (isset($tunnel['disabled'])) {
|
|
1180
|
continue;
|
|
1181
|
}
|
|
1182
|
if (is_ipaddr($tunnel['remote-gateway'])) {
|
|
1183
|
continue;
|
|
1184
|
}
|
|
1185
|
|
|
1186
|
if (!is_ipaddr($tunnel['remote-gateway'])) {
|
|
1187
|
$dnscache = compare_hostname_to_dnscache($tunnel['remote-gateway']);
|
|
1188
|
$dnscache = trim($dnscache);
|
|
1189
|
/* we should have the old IP addresses in the dnscache now */
|
|
1190
|
if($dnscache <> "") {
|
|
1191
|
$oldtunnel = $tunnel;
|
|
1192
|
$oldtunnel['remote-gateway'] = trim($dnscache);
|
|
1193
|
reload_tunnel_spd_policy ($tunnel, $oldtunnel);
|
|
1194
|
}
|
|
1195
|
}
|
|
1196
|
}
|
|
1197
|
}
|
|
1198
|
|
|
1199
|
/* process all generated spd.conf files from tmp which are left behind
|
|
1200
|
* behind by either changes of dynamic tunnels or manual edits
|
|
1201
|
* scandir() is only available in PHP5 */
|
|
1202
|
$tmpfiles = array();
|
|
1203
|
$dh = opendir($g['tmp_path']);
|
|
1204
|
while (false !== ($filename = readdir($dh))) {
|
|
1205
|
$tmpfiles[] = $filename;
|
|
1206
|
}
|
|
1207
|
sort($tmpfiles);
|
|
1208
|
foreach($tmpfiles as $tmpfile) {
|
|
1209
|
if(preg_match("/^spd.conf./", $tmpfile)) {
|
|
1210
|
$ret = mwexec("/usr/local/sbin/setkey -f {$g['tmp_path']}/{$tmpfile} 2>&1", false);
|
|
1211
|
if($ret == 0) {
|
|
1212
|
unlink("{$g['tmp_path']}/{$tmpfile}");
|
|
1213
|
} else {
|
|
1214
|
rename("{$g['tmp_path']}/{$tmpfile}", ("{$g['tmp_path']}/failed.{$tmpfile}"));
|
|
1215
|
}
|
|
1216
|
}
|
|
1217
|
}
|
|
1218
|
}
|
|
1219
|
|
|
1220
|
function reload_tunnel_spd_policy($tunnel, $oldtunnel) {
|
|
1221
|
global $config;
|
|
1222
|
global $g;
|
|
1223
|
|
|
1224
|
/* if we are not passed a old tunnel array we create one */
|
|
1225
|
if(empty($oldtunnel)) {
|
|
1226
|
$oldtunnel = $tunnel;
|
|
1227
|
}
|
|
1228
|
|
|
1229
|
$curwanip = get_current_wan_address();
|
|
1230
|
$sad_arr = return_ipsec_sad_array();
|
|
1231
|
|
|
1232
|
$ep = vpn_endpoint_determine($tunnel, $curwanip);
|
|
1233
|
vpn_localnet_determine($tunnel['local-subnet'], $sa, $sn);
|
|
1234
|
|
|
1235
|
/* make sure we pass the oldtunnel array with a IP for the remote gw */
|
|
1236
|
$oldgw = trim($oldtunnel['remote-gateway']);
|
|
1237
|
$oldep = vpn_endpoint_determine($oldtunnel, $curwanip);
|
|
1238
|
vpn_localnet_determine($oldtunnel['local-subnet'], $oldsa, $oldsn);
|
|
1239
|
|
|
1240
|
/* see if this tunnel has a hostname for the remote-gateway, and if so,
|
|
1241
|
* try to resolve it now and add it to the list for dnswatch */
|
|
1242
|
if (!is_ipaddr($tunnel['remote-gateway'])) {
|
|
1243
|
$rgip = resolve_retry($tunnel['remote-gateway']);
|
|
1244
|
add_hostname_to_watch($tunnel['remote-gateway']);
|
|
1245
|
if (!$rgip) {
|
|
1246
|
log_error("Could not determine VPN endpoint for {$tunnel['descr']}");
|
|
1247
|
return false;
|
|
1248
|
}
|
|
1249
|
} else {
|
|
1250
|
$rgip = $tunnel['remote-gateway'];
|
|
1251
|
}
|
|
1252
|
if (!$ep) {
|
|
1253
|
log_error("Could not determine VPN endpoint for {$tunnel['descr']}");
|
|
1254
|
return false;
|
|
1255
|
}
|
|
1256
|
|
|
1257
|
$spdconf = "";
|
|
1258
|
|
|
1259
|
/* Delete old SPD policies if there are changes between the old and new */
|
|
1260
|
if(($tunnel != $oldtunnel) && (is_ipaddr($oldgw))) {
|
|
1261
|
$spdconf .= "spddelete {$oldsa}/{$oldsn} " .
|
|
1262
|
"{$oldtunnel['remote-subnet']} any -P out ipsec " .
|
|
1263
|
"{$oldtunnel['p2']['protocol']}/tunnel/{$oldep}-" .
|
|
1264
|
"{$oldgw}/unique;\n";
|
|
1265
|
$spdconf .= "spddelete {$oldtunnel['remote-subnet']} " .
|
|
1266
|
"{$oldsa}/{$oldsn} any -P in ipsec " .
|
|
1267
|
"{$oldtunnel['p2']['protocol']}/tunnel/{$oldgw}-" .
|
|
1268
|
"{$oldep}/unique;\n";
|
|
1269
|
|
|
1270
|
/* zap any existing SA entries */
|
|
1271
|
foreach($sad_arr as $sad) {
|
|
1272
|
if(($sad['dst'] == $oldep) && ($sad['src'] == $oldgw)) {
|
|
1273
|
$spdconf .= "delete {$oldep} {$oldgw} {$tunnel['p2']['protocol']} 0x{$sad['spi']};\n";
|
|
1274
|
}
|
|
1275
|
if(($sad['src'] == $oldep) && ($sad['dst'] == $oldgw)) {
|
|
1276
|
$spdconf .= "delete {$oldgw} {$oldep} {$tunnel['p2']['protocol']} 0x{$sad['spi']};\n";
|
|
1277
|
}
|
|
1278
|
}
|
|
1279
|
}
|
|
1280
|
|
|
1281
|
/* Create new SPD entries for the new configuration */
|
|
1282
|
/* zap any existing SA entries beforehand */
|
|
1283
|
foreach($sad_arr as $sad) {
|
|
1284
|
if(($sad['dst'] == $ep) && ($sad['src'] == $rgip)) {
|
|
1285
|
$spdconf .= "delete {$rgip} {$ep} {$tunnel['p2']['protocol']} 0x{$sad['spi']};\n";
|
|
1286
|
}
|
|
1287
|
if(($sad['src'] == $ep) && ($sad['dst'] == $rgip)) {
|
|
1288
|
$spdconf .= "delete {$ep} {$rgip} {$tunnel['p2']['protocol']} 0x{$sad['spi']};\n";
|
|
1289
|
}
|
|
1290
|
}
|
|
1291
|
/* add new SPD policies to replace them */
|
|
1292
|
$spdconf .= "spdadd {$sa}/{$sn} " .
|
|
1293
|
"{$tunnel['remote-subnet']} any -P out ipsec " .
|
|
1294
|
"{$tunnel['p2']['protocol']}/tunnel/{$ep}-" .
|
|
1295
|
"{$rgip}/unique;\n";
|
|
1296
|
$spdconf .= "spdadd {$tunnel['remote-subnet']} " .
|
|
1297
|
"{$sa}/{$sn} any -P in ipsec " .
|
|
1298
|
"{$tunnel['p2']['protocol']}/tunnel/{$rgip}-" .
|
|
1299
|
"{$ep}/unique;\n";
|
|
1300
|
|
|
1301
|
log_error("Reloading IPsec tunnel '{$tunnel['descr']}'. Previous IP '{$oldgw}', current IP '{$rgip}'. Reloading policy");
|
|
1302
|
|
|
1303
|
$now = time();
|
|
1304
|
$spdfile = tempnam("{$g['tmp_path']}", "spd.conf.reload.{$now}.");
|
|
1305
|
/* generate temporary spd.conf */
|
|
1306
|
file_put_contents($spdfile, $spdconf);
|
|
1307
|
return true;
|
|
1308
|
}
|
|
1309
|
|
|
1310
|
/* Dump SAD database to array */
|
|
1311
|
function return_ipsec_sad_array() {
|
|
1312
|
/* query SAD */
|
|
1313
|
$fd = @popen("/usr/local/sbin/setkey -D", "r");
|
|
1314
|
$sad = array();
|
|
1315
|
if ($fd) {
|
|
1316
|
while (!feof($fd)) {
|
|
1317
|
$line = chop(fgets($fd));
|
|
1318
|
if (!$line)
|
|
1319
|
continue;
|
|
1320
|
if ($line == "No SAD entries.")
|
|
1321
|
break;
|
|
1322
|
if ($line[0] != "\t") {
|
|
1323
|
if (is_array($cursa))
|
|
1324
|
$sad[] = $cursa;
|
|
1325
|
$cursa = array();
|
|
1326
|
list($cursa['src'],$cursa['dst']) = explode(" ", $line);
|
|
1327
|
$i = 0;
|
|
1328
|
} else {
|
|
1329
|
$linea = explode(" ", trim($line));
|
|
1330
|
if ($i == 1) {
|
|
1331
|
$cursa['proto'] = $linea[0];
|
|
1332
|
$cursa['spi'] = substr($linea[2], strpos($linea[2], "x")+1, -1);
|
|
1333
|
} else if ($i == 2) {
|
|
1334
|
$cursa['ealgo'] = $linea[1];
|
|
1335
|
} else if ($i == 3) {
|
|
1336
|
$cursa['aalgo'] = $linea[1];
|
|
1337
|
}
|
|
1338
|
}
|
|
1339
|
$i++;
|
|
1340
|
}
|
|
1341
|
if (is_array($cursa) && count($cursa))
|
|
1342
|
$sad[] = $cursa;
|
|
1343
|
pclose($fd);
|
|
1344
|
}
|
|
1345
|
return($sad);
|
|
1346
|
}
|
|
1347
|
|
|
1348
|
?>
|