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| 1 | <?php |
1 | <?php |
| 2 | 2 | ||
| 3 | /* |
3 | /* |
| 4 | * MAC (EUI-48 and EUI-64) utils for PHP |
4 | * MAC (EUI-48 and EUI-64) utils for PHP |
| 5 | * Copyright 2017 - 2023 Daniel Marschall, ViaThinkSoft |
5 | * Copyright 2017 - 2023 Daniel Marschall, ViaThinkSoft |
| 6 | * Version 2023-05-05 |
6 | * Version 2023-05-06 |
| 7 | * |
7 | * |
| 8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | * you may not use this file except in compliance with the License. |
9 | * you may not use this file except in compliance with the License. |
| 10 | * You may obtain a copy of the License at |
10 | * You may obtain a copy of the License at |
| 11 | * |
11 | * |
| Line 214... | Line 214... | ||
| 214 | * @param string $ipv6 IPv6-Link-Local address |
214 | * @param string $ipv6 IPv6-Link-Local address |
| 215 | * @return false|string MAC-48 (or IPv6 if it was no LinkLocal address, or Modified EUI-64 if it decapsulation failed) |
215 | * @return false|string MAC-48 (or IPv6 if it was no LinkLocal address, or Modified EUI-64 if it decapsulation failed) |
| 216 | */ |
216 | */ |
| 217 | function ipv6linklocal_to_mac48(string $ipv6) { |
217 | function ipv6linklocal_to_mac48(string $ipv6) { |
| 218 | // https://stackoverflow.com/questions/12095835/quick-way-of-expanding-ipv6-addresses-with-php (modified) |
218 | // https://stackoverflow.com/questions/12095835/quick-way-of-expanding-ipv6-addresses-with-php (modified) |
| 219 | $tmp = inet_pton($ipv6); |
219 | $tmp = @inet_pton($ipv6); |
| 220 | if ($tmp === false) return false; |
220 | if ($tmp === false) return false; |
| 221 | $hex = unpack("H*hex", $tmp); |
221 | $hex = unpack("H*hex", $tmp); |
| 222 | $ipv6 = substr(preg_replace("/([A-f0-9]{4})/", "$1:", $hex['hex']), 0, -1); |
222 | $ipv6 = substr(preg_replace("/([A-f0-9]{4})/", "$1:", $hex['hex']), 0, -1); |
| 223 | 223 | ||
| 224 | // Remove "fe80::" to convert IPv6-Link-Local address back to EUI-64 |
224 | // Remove "fe80::" to convert IPv6-Link-Local address back to EUI-64 |