|
1
|
<?php
|
|
2
|
|
|
3
|
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
|
4
|
|
|
5
|
/**
|
|
6
|
* This file contains the implementation of the Net_IPv6 class
|
|
7
|
*
|
|
8
|
* PHP versions 4 and 5
|
|
9
|
*
|
|
10
|
* LICENSE: This source file is subject to the New BSD license, that is
|
|
11
|
* available through the world-wide-web at
|
|
12
|
* http://www.opensource.org/licenses/bsd-license.php
|
|
13
|
* If you did not receive a copy of the new BSDlicense and are unable
|
|
14
|
* to obtain it through the world-wide-web, please send a note to
|
|
15
|
* license@php.net so we can mail you a copy immediately
|
|
16
|
*
|
|
17
|
* @category Net
|
|
18
|
* @package Net_IPv6
|
|
19
|
* @author Alexander Merz <alexander.merz@web.de>
|
|
20
|
* @copyright 2003-2005 The PHP Group
|
|
21
|
* @license http://www.opensource.org/licenses/bsd-license.php
|
|
22
|
* @version CVS: $Id: IPv6.inc,v 1.2 2008/11/26 03:54:43 sumacob Exp $
|
|
23
|
* @link http://pear.php.net/package/Net_IPv6
|
|
24
|
*/
|
|
25
|
|
|
26
|
// {{{ constants
|
|
27
|
|
|
28
|
/**
|
|
29
|
* Error message if netmask bits was not found
|
|
30
|
* @see isInNetmask
|
|
31
|
*/
|
|
32
|
define("NET_IPV6_NO_NETMASK_MSG", "Netmask length not found");
|
|
33
|
|
|
34
|
/**
|
|
35
|
* Error code if netmask bits was not found
|
|
36
|
* @see isInNetmask
|
|
37
|
*/
|
|
38
|
define("NET_IPV6_NO_NETMASK", 10);
|
|
39
|
|
|
40
|
/**
|
|
41
|
* Address Type: Unassigned (RFC 1884, Section 2.3)
|
|
42
|
* @see getAddressType()
|
|
43
|
*/
|
|
44
|
define("NET_IPV6_UNASSIGNED", 1);
|
|
45
|
|
|
46
|
/**
|
|
47
|
* Address Type: Reserved (RFC 1884, Section 2.3)
|
|
48
|
* @see getAddressType()
|
|
49
|
*/
|
|
50
|
define("NET_IPV6_RESERVED", 11);
|
|
51
|
|
|
52
|
/**
|
|
53
|
* Address Type: Reserved for NSAP Allocation (RFC 1884, Section 2.3)
|
|
54
|
* @see getAddressType()
|
|
55
|
*/
|
|
56
|
define("NET_IPV6_RESERVED_NSAP", 12);
|
|
57
|
|
|
58
|
/**
|
|
59
|
* Address Type: Reserved for IPX Allocation (RFC 1884, Section 2.3)
|
|
60
|
* @see getAddressType()
|
|
61
|
*/
|
|
62
|
define("NET_IPV6_RESERVED_IPX", 13);
|
|
63
|
|
|
64
|
/**
|
|
65
|
* Address Type: Reserved for Geographic-Based Unicast Addresses
|
|
66
|
* (RFC 1884, Section 2.3)
|
|
67
|
* @see getAddressType()
|
|
68
|
*/
|
|
69
|
define("NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC", 14);
|
|
70
|
|
|
71
|
/**
|
|
72
|
* Address Type: Provider-Based Unicast Address (RFC 1884, Section 2.3)
|
|
73
|
* @see getAddressType()
|
|
74
|
*/
|
|
75
|
define("NET_IPV6_UNICAST_PROVIDER", 22);
|
|
76
|
|
|
77
|
/**
|
|
78
|
* Address Type: Multicast Addresses (RFC 1884, Section 2.3)
|
|
79
|
* @see getAddressType()
|
|
80
|
*/
|
|
81
|
define("NET_IPV6_MULTICAST", 31);
|
|
82
|
|
|
83
|
/**
|
|
84
|
* Address Type: Link Local Use Addresses (RFC 1884, Section 2.3)
|
|
85
|
* @see getAddressType()
|
|
86
|
*/
|
|
87
|
define("NET_IPV6_LOCAL_LINK", 42);
|
|
88
|
|
|
89
|
/**
|
|
90
|
* Address Type: Link Local Use Addresses (RFC 1884, Section 2.3)
|
|
91
|
* @see getAddressType()
|
|
92
|
*/
|
|
93
|
define("NET_IPV6_LOCAL_SITE", 43);
|
|
94
|
|
|
95
|
/**
|
|
96
|
* Address Type: address can not assigned to a specific type
|
|
97
|
* @see getAddressType()
|
|
98
|
*/
|
|
99
|
define("NET_IPV6_UNKNOWN_TYPE", 1001);
|
|
100
|
|
|
101
|
// }}}
|
|
102
|
// {{{ Net_IPv6
|
|
103
|
|
|
104
|
/**
|
|
105
|
* Class to validate and to work with IPv6 addresses.
|
|
106
|
*
|
|
107
|
* @category Net
|
|
108
|
* @package Net_IPv6
|
|
109
|
* @copyright 2003-2005 The PHP Group
|
|
110
|
* @license http://www.opensource.org/licenses/bsd-license.php
|
|
111
|
* @version $Release$
|
|
112
|
* @link http://pear.php.net/package/Net_IPv6
|
|
113
|
* @author Alexander Merz <alexander.merz@web.de>
|
|
114
|
* @author <elfrink at introweb dot nl>
|
|
115
|
* @author Josh Peck <jmp at joshpeck dot org>
|
|
116
|
*/
|
|
117
|
class Net_IPv6 {
|
|
118
|
|
|
119
|
// {{{ removeNetmaskBits()
|
|
120
|
|
|
121
|
/**
|
|
122
|
* Removes a possible existing netmask specification at an IP addresse.
|
|
123
|
*
|
|
124
|
* @param String $ip the (compressed) IP as Hex representation
|
|
125
|
*
|
|
126
|
* @return String the IP without netmask length
|
|
127
|
* @since 1.1.0
|
|
128
|
* @access public
|
|
129
|
* @static
|
|
130
|
*/
|
|
131
|
function removeNetmaskSpec($ip)
|
|
132
|
{
|
|
133
|
$addr = $ip;
|
|
134
|
|
|
135
|
if (false !== strpos($ip, '/')) {
|
|
136
|
|
|
137
|
$elements = explode('/', $ip);
|
|
138
|
|
|
139
|
if (2 == count($elements)) {
|
|
140
|
|
|
141
|
$addr = $elements[0];
|
|
142
|
|
|
143
|
}
|
|
144
|
|
|
145
|
}
|
|
146
|
|
|
147
|
return $addr;
|
|
148
|
}
|
|
149
|
|
|
150
|
/**
|
|
151
|
* Returns a possible existing netmask specification at an IP addresse.
|
|
152
|
*
|
|
153
|
* @param String $ip the (compressed) IP as Hex representation
|
|
154
|
*
|
|
155
|
* @return String the netmask spec
|
|
156
|
* @since 1.1.0
|
|
157
|
* @access public
|
|
158
|
* @static
|
|
159
|
*/
|
|
160
|
function getNetmaskSpec($ip)
|
|
161
|
{
|
|
162
|
$spec = '';
|
|
163
|
|
|
164
|
if (false !== strpos($ip, '/')) {
|
|
165
|
|
|
166
|
$elements = explode('/', $ip);
|
|
167
|
|
|
168
|
if (2 == count($elements)) {
|
|
169
|
|
|
170
|
$spec = $elements[1];
|
|
171
|
|
|
172
|
}
|
|
173
|
|
|
174
|
}
|
|
175
|
|
|
176
|
return $spec;
|
|
177
|
}
|
|
178
|
|
|
179
|
// }}}
|
|
180
|
// {{{ getNetmask()
|
|
181
|
|
|
182
|
/**
|
|
183
|
* Calculates the network prefix based on the netmask bits.
|
|
184
|
*
|
|
185
|
* @param String $ip the (compressed) IP in Hex format
|
|
186
|
* @param int $bits if the number of netmask bits is not part of the IP
|
|
187
|
* you must provide the number of bits
|
|
188
|
*
|
|
189
|
* @return String the network prefix
|
|
190
|
* @since 1.1.0
|
|
191
|
* @access public
|
|
192
|
* @static
|
|
193
|
*/
|
|
194
|
function getNetmask($ip, $bits = null)
|
|
195
|
{
|
|
196
|
if (null==$bits) {
|
|
197
|
|
|
198
|
$elements = explode('/', $ip);
|
|
199
|
|
|
200
|
if (2 == count($elements)) {
|
|
201
|
|
|
202
|
$addr = $elements[0];
|
|
203
|
$bits = $elements[1];
|
|
204
|
|
|
205
|
} else {
|
|
206
|
|
|
207
|
include_once 'PEAR.inc';
|
|
208
|
|
|
209
|
return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
|
|
210
|
NET_IPV6_NO_NETMASK);
|
|
211
|
}
|
|
212
|
|
|
213
|
} else {
|
|
214
|
|
|
215
|
$addr = $ip;
|
|
216
|
|
|
217
|
}
|
|
218
|
|
|
219
|
$addr = Net_IPv6::uncompress($addr);
|
|
220
|
$binNetmask = str_repeat('1', $bits).str_repeat('0', 128 - $bits);
|
|
221
|
|
|
222
|
return Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($addr) & $binNetmask);
|
|
223
|
}
|
|
224
|
|
|
225
|
// }}}
|
|
226
|
// {{{ isInNetmask()
|
|
227
|
|
|
228
|
/**
|
|
229
|
* Checks if an (compressed) IP is in a specific address space.
|
|
230
|
*
|
|
231
|
* IF the IP does not contains the number of netmask bits (F8000::FFFF/16)
|
|
232
|
* then you have to use the $bits parameter.
|
|
233
|
*
|
|
234
|
* @param String $ip the IP to check (eg. F800::FFFF)
|
|
235
|
* @param String $netmask the netmask (eg F800::)
|
|
236
|
* @param int $bits the number of netmask bits to compare,
|
|
237
|
* if not given in $ip
|
|
238
|
*
|
|
239
|
* @return boolean true if $ip is in the netmask
|
|
240
|
* @since 1.1.0
|
|
241
|
* @access public
|
|
242
|
* @static
|
|
243
|
*/
|
|
244
|
function isInNetmask($ip, $netmask, $bits=null)
|
|
245
|
{
|
|
246
|
// try to get the bit count
|
|
247
|
|
|
248
|
if (null == $bits) {
|
|
249
|
|
|
250
|
$elements = explode('/', $ip);
|
|
251
|
|
|
252
|
if (2 == count($elements)) {
|
|
253
|
|
|
254
|
$ip = $elements[0];
|
|
255
|
$bits = $elements[1];
|
|
256
|
|
|
257
|
} else if (null == $bits) {
|
|
258
|
|
|
259
|
$elements = explode('/', $netmask);
|
|
260
|
|
|
261
|
if (2 == count($elements)) {
|
|
262
|
|
|
263
|
$netmask = $elements[0];
|
|
264
|
$bits = $elements[1];
|
|
265
|
|
|
266
|
}
|
|
267
|
|
|
268
|
if (null == $bits) {
|
|
269
|
|
|
270
|
include_once 'PEAR.inc';
|
|
271
|
return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
|
|
272
|
NET_IPV6_NO_NETMASK);
|
|
273
|
|
|
274
|
}
|
|
275
|
|
|
276
|
}
|
|
277
|
|
|
278
|
}
|
|
279
|
|
|
280
|
$binIp = Net_IPv6::_ip2Bin(Net_IPv6::removeNetmaskSpec($ip));
|
|
281
|
$binNetmask = Net_IPv6::_ip2Bin(Net_IPv6::removeNetmaskSpec($netmask));
|
|
282
|
|
|
283
|
if (null != $bits
|
|
284
|
&& "" != $bits
|
|
285
|
&& 0 == strncmp( $binNetmask, $binIp, $bits)) {
|
|
286
|
|
|
287
|
return true;
|
|
288
|
|
|
289
|
}
|
|
290
|
|
|
291
|
return false;
|
|
292
|
}
|
|
293
|
|
|
294
|
// }}}
|
|
295
|
// {{{ getAddressType()
|
|
296
|
|
|
297
|
/**
|
|
298
|
* Returns the type of an IPv6 address.
|
|
299
|
*
|
|
300
|
* RFC 1883, Section 2.3 describes several types of addresses in
|
|
301
|
* the IPv6 addresse space.
|
|
302
|
* Several addresse types are markers for reserved spaces and as
|
|
303
|
* consequence a subject to change.
|
|
304
|
*
|
|
305
|
* @param String $ip the IP address in Hex format,
|
|
306
|
* compressed IPs are allowed
|
|
307
|
*
|
|
308
|
* @return int one of the addresse type constants
|
|
309
|
* @access public
|
|
310
|
* @since 1.1.0
|
|
311
|
* @static
|
|
312
|
*
|
|
313
|
* @see NET_IPV6_UNASSIGNED
|
|
314
|
* @see NET_IPV6_RESERVED
|
|
315
|
* @see NET_IPV6_RESERVED_NSAP
|
|
316
|
* @see NET_IPV6_RESERVED_IPX
|
|
317
|
* @see NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC
|
|
318
|
* @see NET_IPV6_UNICAST_PROVIDER
|
|
319
|
* @see NET_IPV6_MULTICAST
|
|
320
|
* @see NET_IPV6_LOCAL_LINK
|
|
321
|
* @see NET_IPV6_LOCAL_SITE
|
|
322
|
* @see NET_IPV6_UNKNOWN_TYPE
|
|
323
|
*/
|
|
324
|
function getAddressType($ip)
|
|
325
|
{
|
|
326
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
|
327
|
$binip = Net_IPv6::_ip2Bin($ip);
|
|
328
|
|
|
329
|
if (0 == strncmp('1111111010', $binip, 10)) {
|
|
330
|
|
|
331
|
return NET_IPV6_LOCAL_LINK;
|
|
332
|
|
|
333
|
} else if (0 == strncmp('1111111011', $binip, 10)) {
|
|
334
|
|
|
335
|
return NET_IPV6_LOCAL_SITE;
|
|
336
|
|
|
337
|
} else if (0 == strncmp('111111100', $binip, 9)) {
|
|
338
|
|
|
339
|
return NET_IPV6_UNASSIGNED;
|
|
340
|
|
|
341
|
} else if (0 == strncmp('11111111', $binip, 8)) {
|
|
342
|
|
|
343
|
return NET_IPV6_MULTICAST;
|
|
344
|
|
|
345
|
} else if (0 == strncmp('00000000', $binip, 8)) {
|
|
346
|
|
|
347
|
return NET_IPV6_RESERVED;
|
|
348
|
|
|
349
|
} else if (0 == strncmp('00000001', $binip, 8)
|
|
350
|
|| 0 == strncmp('1111110', $binip, 7)) {
|
|
351
|
|
|
352
|
return NET_IPV6_UNASSIGNED;
|
|
353
|
|
|
354
|
} else if (0 == strncmp('0000001', $binip, 7)) {
|
|
355
|
|
|
356
|
return NET_IPV6_RESERVED_NSAP;
|
|
357
|
|
|
358
|
} else if (0 == strncmp('0000010', $binip, 7)) {
|
|
359
|
|
|
360
|
return NET_IPV6_RESERVED_IPX;;
|
|
361
|
|
|
362
|
} else if (0 == strncmp('0000011', $binip, 7) ||
|
|
363
|
0 == strncmp('111110', $binip, 6) ||
|
|
364
|
0 == strncmp('11110', $binip, 5) ||
|
|
365
|
0 == strncmp('00001', $binip, 5) ||
|
|
366
|
0 == strncmp('1110', $binip, 4) ||
|
|
367
|
0 == strncmp('0001', $binip, 4) ||
|
|
368
|
0 == strncmp('001', $binip, 3) ||
|
|
369
|
0 == strncmp('011', $binip, 3) ||
|
|
370
|
0 == strncmp('101', $binip, 3) ||
|
|
371
|
0 == strncmp('110', $binip, 3)) {
|
|
372
|
|
|
373
|
return NET_IPV6_UNASSIGNED;
|
|
374
|
|
|
375
|
} else if (0 == strncmp('010', $binip, 3)) {
|
|
376
|
|
|
377
|
return NET_IPV6_UNICAST_PROVIDER;
|
|
378
|
|
|
379
|
} else if (0 == strncmp('100', $binip, 3)) {
|
|
380
|
|
|
381
|
return NET_IPV6_RESERVED_UNICAST_GEOGRAPHIC;
|
|
382
|
|
|
383
|
}
|
|
384
|
|
|
385
|
return NET_IPV6_UNKNOWN_TYPE;
|
|
386
|
}
|
|
387
|
|
|
388
|
// }}}
|
|
389
|
// {{{ Uncompress()
|
|
390
|
|
|
391
|
/**
|
|
392
|
* Uncompresses an IPv6 adress
|
|
393
|
*
|
|
394
|
* RFC 2373 allows you to compress zeros in an adress to '::'. This
|
|
395
|
* function expects an valid IPv6 adress and expands the '::' to
|
|
396
|
* the required zeros.
|
|
397
|
*
|
|
398
|
* Example: FF01::101 -> FF01:0:0:0:0:0:0:101
|
|
399
|
* ::1 -> 0:0:0:0:0:0:0:1
|
|
400
|
*
|
|
401
|
* @access public
|
|
402
|
* @see Compress()
|
|
403
|
* @static
|
|
404
|
* @param string $ip a valid IPv6-adress (hex format)
|
|
405
|
* @return string the uncompressed IPv6-adress (hex format)
|
|
406
|
*/
|
|
407
|
function uncompress($ip)
|
|
408
|
{
|
|
409
|
|
|
410
|
$prefix = Net_IPv6::getPrefixLength($ip);
|
|
411
|
|
|
412
|
if (false === $prefix) {
|
|
413
|
|
|
414
|
$prefix = '';
|
|
415
|
|
|
416
|
} else {
|
|
417
|
|
|
418
|
$ip = Net_IPv6::removePrefixLength($ip);
|
|
419
|
$prefix = '/'.$prefix;
|
|
420
|
|
|
421
|
}
|
|
422
|
|
|
423
|
$netmask = Net_IPv6::getNetmaskSpec($ip);
|
|
424
|
$uip = Net_IPv6::removeNetmaskSpec($ip);
|
|
425
|
|
|
426
|
$c1 = -1;
|
|
427
|
$c2 = -1;
|
|
428
|
|
|
429
|
if (false !== strpos($uip, '::') ) {
|
|
430
|
|
|
431
|
list($ip1, $ip2) = explode('::', $uip);
|
|
432
|
|
|
433
|
if("" == $ip1) {
|
|
434
|
|
|
435
|
$c1 = -1;
|
|
436
|
|
|
437
|
} else {
|
|
438
|
|
|
439
|
$pos = 0;
|
|
440
|
|
|
441
|
if (0 < ($pos = substr_count($ip1, ':'))) {
|
|
442
|
|
|
443
|
$c1 = $pos;
|
|
444
|
|
|
445
|
} else {
|
|
446
|
|
|
447
|
$c1 = 0;
|
|
448
|
|
|
449
|
}
|
|
450
|
}
|
|
451
|
if ("" == $ip2) {
|
|
452
|
|
|
453
|
$c2 = -1;
|
|
454
|
|
|
455
|
} else {
|
|
456
|
|
|
457
|
$pos = 0;
|
|
458
|
|
|
459
|
if (0 < ($pos = substr_count($ip2, ':'))) {
|
|
460
|
|
|
461
|
$c2 = $pos;
|
|
462
|
|
|
463
|
} else {
|
|
464
|
|
|
465
|
$c2 = 0;
|
|
466
|
|
|
467
|
}
|
|
468
|
|
|
469
|
}
|
|
470
|
|
|
471
|
if (strstr($ip2, '.')) {
|
|
472
|
|
|
473
|
$c2++;
|
|
474
|
|
|
475
|
}
|
|
476
|
if (-1 == $c1 && -1 == $c2) { // ::
|
|
477
|
|
|
478
|
$uip = "0:0:0:0:0:0:0:0";
|
|
479
|
|
|
480
|
} else if (-1 == $c1) { // ::xxx
|
|
481
|
|
|
482
|
$fill = str_repeat('0:', 7-$c2);
|
|
483
|
$uip = str_replace('::', $fill, $uip);
|
|
484
|
|
|
485
|
} else if (-1 == $c2) { // xxx::
|
|
486
|
|
|
487
|
$fill = str_repeat(':0', 7-$c1);
|
|
488
|
$uip = str_replace('::', $fill, $uip);
|
|
489
|
|
|
490
|
} else { // xxx::xxx
|
|
491
|
|
|
492
|
$fill = str_repeat(':0:', 6-$c2-$c1);
|
|
493
|
$uip = str_replace('::', $fill, $uip);
|
|
494
|
$uip = str_replace('::', ':', $uip);
|
|
495
|
|
|
496
|
}
|
|
497
|
}
|
|
498
|
if ('' != $netmask) {
|
|
499
|
|
|
500
|
$uip = $uip.'/'.$netmask;
|
|
501
|
|
|
502
|
}
|
|
503
|
|
|
504
|
return $uip.$prefix;
|
|
505
|
}
|
|
506
|
|
|
507
|
// }}}
|
|
508
|
// {{{ Compress()
|
|
509
|
|
|
510
|
/**
|
|
511
|
* Compresses an IPv6 adress
|
|
512
|
*
|
|
513
|
* RFC 2373 allows you to compress zeros in an adress to '::'. This
|
|
514
|
* function expects an valid IPv6 adress and compresses successive zeros
|
|
515
|
* to '::'
|
|
516
|
*
|
|
517
|
* Example: FF01:0:0:0:0:0:0:101 -> FF01::101
|
|
518
|
* 0:0:0:0:0:0:0:1 -> ::1
|
|
519
|
*
|
|
520
|
* @access public
|
|
521
|
* @see Uncompress()
|
|
522
|
* @static
|
|
523
|
* @param string $ip a valid IPv6-adress (hex format)
|
|
524
|
* @return string the compressed IPv6-adress (hex format)
|
|
525
|
* @author elfrink at introweb dot nl
|
|
526
|
*/
|
|
527
|
function compress($ip)
|
|
528
|
{
|
|
529
|
$prefix = Net_IPv6::getPrefixLength($ip);
|
|
530
|
|
|
531
|
if (false === $prefix) {
|
|
532
|
|
|
533
|
$prefix = '';
|
|
534
|
|
|
535
|
} else {
|
|
536
|
|
|
537
|
$ip = Net_IPv6::removePrefixLength($ip);
|
|
538
|
$prefix = '/'.$prefix;
|
|
539
|
|
|
540
|
}
|
|
541
|
|
|
542
|
$netmask = Net_IPv6::getNetmaskSpec($ip);
|
|
543
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
|
544
|
|
|
545
|
if (!strstr($ip, '::')) {
|
|
546
|
|
|
547
|
$ipp = explode(':',$ip);
|
|
548
|
|
|
549
|
for ($i = 0; $i < count($ipp); $i++) {
|
|
550
|
|
|
551
|
$ipp[$i] = dechex(hexdec($ipp[$i]));
|
|
552
|
|
|
553
|
}
|
|
554
|
|
|
555
|
$cip = ':' . join(':',$ipp) . ':';
|
|
556
|
|
|
557
|
preg_match_all("/(:0)+/", $cip, $zeros);
|
|
558
|
|
|
559
|
if (count($zeros[0]) > 0) {
|
|
560
|
|
|
561
|
$match = '';
|
|
562
|
|
|
563
|
foreach($zeros[0] as $zero) {
|
|
564
|
|
|
565
|
if (strlen($zero) > strlen($match)) {
|
|
566
|
|
|
567
|
$match = $zero;
|
|
568
|
|
|
569
|
}
|
|
570
|
}
|
|
571
|
|
|
572
|
$cip = preg_replace('/' . $match . '/', ':', $cip, 1);
|
|
573
|
|
|
574
|
}
|
|
575
|
|
|
576
|
$cip = preg_replace('/((^:)|(:$))/', '' ,$cip);
|
|
577
|
$cip = preg_replace('/((^:)|(:$))/', '::' ,$cip);
|
|
578
|
|
|
579
|
}
|
|
580
|
if ('' != $netmask) {
|
|
581
|
|
|
582
|
$cip = $cip.'/'.$netmask;
|
|
583
|
|
|
584
|
}
|
|
585
|
|
|
586
|
return $cip.$prefix;
|
|
587
|
}
|
|
588
|
|
|
589
|
// }}}
|
|
590
|
// {{{ SplitV64()
|
|
591
|
|
|
592
|
/**
|
|
593
|
* Splits an IPv6 adress into the IPv6 and a possible IPv4 part
|
|
594
|
*
|
|
595
|
* RFC 2373 allows you to note the last two parts of an IPv6 adress as
|
|
596
|
* an IPv4 compatible adress
|
|
597
|
*
|
|
598
|
* Example: 0:0:0:0:0:0:13.1.68.3
|
|
599
|
* 0:0:0:0:0:FFFF:129.144.52.38
|
|
600
|
*
|
|
601
|
* @param string $ip a valid IPv6-adress (hex format)
|
|
602
|
*
|
|
603
|
* @return array [0] contains the IPv6 part,
|
|
604
|
* [1] the IPv4 part (hex format)
|
|
605
|
* @access public
|
|
606
|
* @static
|
|
607
|
*/
|
|
608
|
function SplitV64($ip, $uncompress = true)
|
|
609
|
{
|
|
610
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
|
611
|
|
|
612
|
if ($uncompress) {
|
|
613
|
|
|
614
|
$ip = Net_IPv6::Uncompress($ip);
|
|
615
|
|
|
616
|
}
|
|
617
|
|
|
618
|
if (strstr($ip, '.')) {
|
|
619
|
|
|
620
|
$pos = strrpos($ip, ':');
|
|
621
|
$ip{$pos} = '_';
|
|
622
|
$ipPart = explode('_', $ip);
|
|
623
|
|
|
624
|
return $ipPart;
|
|
625
|
|
|
626
|
} else {
|
|
627
|
|
|
628
|
return array($ip, "");
|
|
629
|
|
|
630
|
}
|
|
631
|
}
|
|
632
|
|
|
633
|
// }}}
|
|
634
|
// {{{ checkIPv6()
|
|
635
|
|
|
636
|
/**
|
|
637
|
* Checks an IPv6 adress
|
|
638
|
*
|
|
639
|
* Checks if the given IP is IPv6-compatible
|
|
640
|
*
|
|
641
|
* @access public
|
|
642
|
* @static
|
|
643
|
* @param string $ip a valid IPv6-adress
|
|
644
|
* @return boolean true if $ip is an IPv6 adress
|
|
645
|
*/
|
|
646
|
function checkIPv6($ip)
|
|
647
|
{
|
|
648
|
$ip = Net_IPv6::removePrefixLength($ip);
|
|
649
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
|
650
|
|
|
651
|
$ipPart = Net_IPv6::SplitV64($ip);
|
|
652
|
$count = 0;
|
|
653
|
|
|
654
|
if (!empty($ipPart[0]))
|
|
655
|
{
|
|
656
|
$ipv6 =explode(':', $ipPart[0]);
|
|
657
|
|
|
658
|
for ($i = 0; $i < count($ipv6); $i++) {
|
|
659
|
|
|
660
|
$dec = hexdec($ipv6[$i]);
|
|
661
|
$hex = strtoupper(preg_replace("/^[0]{1,3}(.*[0-9a-fA-F])$/",
|
|
662
|
"\\1",
|
|
663
|
$ipv6[$i]));
|
|
664
|
|
|
665
|
if ($ipv6[$i] >= 0 && $dec <= 65535
|
|
666
|
&& $hex == strtoupper(dechex($dec))) {
|
|
667
|
|
|
668
|
$count++;
|
|
669
|
|
|
670
|
}
|
|
671
|
|
|
672
|
}
|
|
673
|
|
|
674
|
if (8 == $count) {
|
|
675
|
|
|
676
|
return true;
|
|
677
|
|
|
678
|
} else if (6 == $count and !empty($ipPart[1])) {
|
|
679
|
|
|
680
|
$ipv4 = explode('.',$ipPart[1]);
|
|
681
|
$count = 0;
|
|
682
|
|
|
683
|
for ($i = 0; $i < count($ipv4); $i++) {
|
|
684
|
|
|
685
|
if ($ipv4[$i] >= 0 && (integer)$ipv4[$i] <= 255
|
|
686
|
&& preg_match("/^\d{1,3}$/", $ipv4[$i])) {
|
|
687
|
|
|
688
|
$count++;
|
|
689
|
|
|
690
|
}
|
|
691
|
|
|
692
|
}
|
|
693
|
|
|
694
|
if (4 == $count) {
|
|
695
|
|
|
696
|
return true;
|
|
697
|
|
|
698
|
}
|
|
699
|
|
|
700
|
} else {
|
|
701
|
|
|
702
|
return false;
|
|
703
|
|
|
704
|
}
|
|
705
|
|
|
706
|
} else {
|
|
707
|
|
|
708
|
return false;
|
|
709
|
|
|
710
|
}
|
|
711
|
|
|
712
|
}
|
|
713
|
|
|
714
|
// }}}
|
|
715
|
// {{{ getPrefixLength()
|
|
716
|
|
|
717
|
/**
|
|
718
|
* Tests for a prefix length specification in the address
|
|
719
|
* and returns the prefix length, if exists
|
|
720
|
*
|
|
721
|
* @param String $ip a valid ipv6 address
|
|
722
|
*
|
|
723
|
* @return Mixed the prefix as String or false, if no prefix was found
|
|
724
|
* @access public
|
|
725
|
* @static
|
|
726
|
*/
|
|
727
|
function getPrefixLength($ip)
|
|
728
|
{
|
|
729
|
if (preg_match("/^([0-9a-fA-F:]{2,39})\/(\d{1,3})*$/",
|
|
730
|
$ip, $matches)) {
|
|
731
|
|
|
732
|
return $matches[2];
|
|
733
|
|
|
734
|
} else {
|
|
735
|
|
|
736
|
return false;
|
|
737
|
|
|
738
|
}
|
|
739
|
|
|
740
|
}
|
|
741
|
|
|
742
|
// }}}
|
|
743
|
// {{{ removePrefixLength()
|
|
744
|
|
|
745
|
/**
|
|
746
|
* Tests for a prefix length specification in the address
|
|
747
|
* and removes the prefix length, if exists
|
|
748
|
*
|
|
749
|
* @param String $ip a valid ipv6 address
|
|
750
|
*
|
|
751
|
* @return String the address without a prefix length
|
|
752
|
* @access public
|
|
753
|
* @static
|
|
754
|
*/
|
|
755
|
function removePrefixLength($ip)
|
|
756
|
{
|
|
757
|
$pos = strrpos($ip, '/');
|
|
758
|
|
|
759
|
if (false !== $pos) {
|
|
760
|
|
|
761
|
return substr($ip, 0, $pos);
|
|
762
|
|
|
763
|
}
|
|
764
|
|
|
765
|
return $ip;
|
|
766
|
}
|
|
767
|
|
|
768
|
// }}}
|
|
769
|
|
|
770
|
// {{{ _parseAddress()
|
|
771
|
|
|
772
|
/**
|
|
773
|
* Returns the lowest and highest IPv6 address
|
|
774
|
* for a given IP and netmask specification
|
|
775
|
*
|
|
776
|
* The netmask may be a part of the $ip or
|
|
777
|
* the number of netwask bits is provided via $bits
|
|
778
|
*
|
|
779
|
* The result is an indexed array. The key 'start'
|
|
780
|
* contains the lowest possible IP adress. The key
|
|
781
|
* 'end' the highest address.
|
|
782
|
*
|
|
783
|
* @param String $ip the IPv6 address
|
|
784
|
* @param String $bits the optional count of netmask bits
|
|
785
|
*
|
|
786
|
* @return Array ['start', 'end'] the lowest and highest IPv6 address
|
|
787
|
* @access public
|
|
788
|
* @static
|
|
789
|
* @author Nicholas Williams
|
|
790
|
*/
|
|
791
|
|
|
792
|
function parseAddress($ipToParse, $bits = null)
|
|
793
|
{
|
|
794
|
|
|
795
|
$ip = null;
|
|
796
|
$bitmask = null;
|
|
797
|
|
|
798
|
if( null == $bits )
|
|
799
|
{
|
|
800
|
|
|
801
|
$elements = explode('/', $ipToParse);
|
|
802
|
|
|
803
|
if( 2 == count($elements) ) {
|
|
804
|
|
|
805
|
$ip = Net_IPv6::uncompress($elements[0]);
|
|
806
|
$bitmask = $elements[1];
|
|
807
|
|
|
808
|
} else {
|
|
809
|
|
|
810
|
include_once 'PEAR.inc';
|
|
811
|
|
|
812
|
return PEAR::raiseError(NET_IPV6_NO_NETMASK_MSG,
|
|
813
|
NET_IPV6_NO_NETMASK);
|
|
814
|
}
|
|
815
|
}
|
|
816
|
else
|
|
817
|
{
|
|
818
|
|
|
819
|
$ip = Net_IPv6::uncompress($ipToParse);
|
|
820
|
$bitmask = $bits;
|
|
821
|
|
|
822
|
}
|
|
823
|
|
|
824
|
$binNetmask = str_repeat('1', $bitmask).
|
|
825
|
str_repeat('0', 128 - $bitmask);
|
|
826
|
$maxNetmask = str_repeat('1', 128);
|
|
827
|
$netmask = Net_IPv6::_bin2Ip($binNetmask);
|
|
828
|
|
|
829
|
$startAddress = Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($ip)
|
|
830
|
& $binNetmask);
|
|
831
|
$endAddress = Net_IPv6::_bin2Ip(Net_IPv6::_ip2Bin($ip)
|
|
832
|
| ($binNetmask ^ $maxNetmask));
|
|
833
|
|
|
834
|
return array('start' => $startAddress, 'end' => $endAddress);
|
|
835
|
}
|
|
836
|
|
|
837
|
// }}}
|
|
838
|
|
|
839
|
// {{{ _ip2Bin()
|
|
840
|
|
|
841
|
/**
|
|
842
|
* Converts an IPv6 address from Hex into Binary representation.
|
|
843
|
*
|
|
844
|
* @param String $ip the IP to convert (a:b:c:d:e:f:g:h),
|
|
845
|
* compressed IPs are allowed
|
|
846
|
*
|
|
847
|
* @return String the binary representation
|
|
848
|
* @access private
|
|
849
|
@ @since 1.1.0
|
|
850
|
*/
|
|
851
|
function _ip2Bin($ip)
|
|
852
|
{
|
|
853
|
$binstr = '';
|
|
854
|
|
|
855
|
$ip = Net_IPv6::removeNetmaskSpec($ip);
|
|
856
|
$ip = Net_IPv6::Uncompress($ip);
|
|
857
|
|
|
858
|
$parts = explode(':', $ip);
|
|
859
|
|
|
860
|
foreach($parts as $v) {
|
|
861
|
|
|
862
|
$str = base_convert($v, 16, 2);
|
|
863
|
$binstr .= str_pad($str, 16, '0', STR_PAD_LEFT);
|
|
864
|
|
|
865
|
}
|
|
866
|
|
|
867
|
return $binstr;
|
|
868
|
}
|
|
869
|
|
|
870
|
// }}}
|
|
871
|
// {{{ _bin2Ip()
|
|
872
|
|
|
873
|
/**
|
|
874
|
* Converts an IPv6 address from Binary into Hex representation.
|
|
875
|
*
|
|
876
|
* @param String $ip the IP as binary
|
|
877
|
*
|
|
878
|
* @return String the uncompressed Hex representation
|
|
879
|
* @access private
|
|
880
|
@ @since 1.1.0
|
|
881
|
*/
|
|
882
|
function _bin2Ip($bin)
|
|
883
|
{
|
|
884
|
$ip = "";
|
|
885
|
|
|
886
|
if (strlen($bin) < 128) {
|
|
887
|
|
|
888
|
$bin = str_pad($str, 128, '0', STR_PAD_LEFT);
|
|
889
|
|
|
890
|
}
|
|
891
|
|
|
892
|
$parts = str_split($bin, "16");
|
|
893
|
|
|
894
|
foreach($parts as $v) {
|
|
895
|
|
|
896
|
$str = base_convert($v, 2, 16);
|
|
897
|
$ip .= $str.":";
|
|
898
|
|
|
899
|
}
|
|
900
|
|
|
901
|
$ip = substr($ip, 0,-1);
|
|
902
|
|
|
903
|
return $ip;
|
|
904
|
}
|
|
905
|
|
|
906
|
// }}}
|
|
907
|
}
|
|
908
|
// }}}
|
|
909
|
|
|
910
|
/*
|
|
911
|
* Local variables:
|
|
912
|
* tab-width: 4
|
|
913
|
* c-basic-offset: 4
|
|
914
|
* c-hanging-comment-ender-p: nil
|
|
915
|
* End:
|
|
916
|
*/
|
|
917
|
|
|
918
|
?>
|