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Filter channels for frequencies >5500 MHz per hostapd hw_features

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billz 2023-11-05 18:46:51 +00:00
parent fee5a69342
commit 2abe94b796
1 changed files with 16 additions and 8 deletions
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24
src/RaspAP/Parsers/IwParser.php
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@ -40,12 +40,12 @@ class IwParser
*/
public function parseIwInfo()
{
$excluded = array(
$excluded = [
"(no IR, radar detection)",
"(radar detection)",
"(disabled)",
"(no IR)"
);
];
$excluded_pattern = implode('|', array_map('preg_quote', $excluded));
$pattern = '/\*\s+(\d+)\s+MHz \[(\d+)\] \(([\d.]+) dBm\)\s(?!' .$excluded_pattern. ')/';
$supportedFrequencies = [];
@ -53,13 +53,21 @@ class IwParser
// Match iw_output containing supported frequencies
preg_match_all($pattern, $this->iw_output, $matches, PREG_SET_ORDER, 0);
/* For frequencies > 5500 MHz only the following "channels" are allowed:
* 100 108 116 124 132 140 149 157 184 192
* @see https://w1.fi/cgit/hostap/tree/src/common/hw_features_common.c
*/
$allowed = [100, 108, 116, 124, 132, 140, 149, 157, 184, 192];
foreach ($matches as $match) {
$frequency = [
'MHz' => (int)$match[1],
'Channel' => (int)$match[2],
'dBm' => (float)$match[3],
];
$supportedFrequencies[] = $frequency;
if ( (int)$match[1] >= 5500 && in_array((int)$match[2],$allowed) ) {
$frequency = [
'MHz' => (int)$match[1],
'Channel' => (int)$match[2],
'dBm' => (float)$match[3],
];
$supportedFrequencies[] = $frequency;
}
}
return $supportedFrequencies;
}