44 lines
1.4 KiB
PHP
44 lines
1.4 KiB
PHP
<?php
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require '../../includes/csrf.php';
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require_once '../../includes/config.php';
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require_once '../../includes/locale.php';
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if (isset($_POST['interface'])) {
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define( 'NL80211_BAND_24GHZ', 0x1 );
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define( 'NL80211_BAND_5GHZ', 0x2 );
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$iface = escapeshellcmd($_POST['interface']);
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$flags = 0;
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// get physical device for selected interface
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exec("iw dev | awk '/$iface/ {print line}{line = $0}'", $return);
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$phy = $return[0];
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// get frequencies supported by device
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exec('iw '.$phy.' info | sed -rn "s/^.*\*\s([0-9]{4})\sMHz.*/\1/p"', $frequencies);
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if (count(preg_grep('/^24[0-9]{2}/i', $frequencies)) >0) {
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$flags += NL80211_BAND_24GHZ;
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}
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if (count(preg_grep('/^5[0-9]{3}/i', $frequencies)) >0) {
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$flags += NL80211_BAND_5GHZ;
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}
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switch ($flags) {
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case NL80211_BAND_24GHZ:
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$msg = sprintf(_("The selected interface (%s) has support for the 2.4 GHz wireless band only."), $iface);
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break;
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case NL80211_BAND_5GHZ:
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$msg = sprintf(_("The selected interface (%s) has support for the 5 GHz wireless band only."), $iface);
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break;
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case NL80211_BAND_24GHZ | NL80211_BAND_5GHZ:
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$msg = sprintf(_("The selected interface (%s) has support for both the 2.4 and 5 GHz wireless bands."), $iface);
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break;
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default:
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$msg = sprintf(_("The selected interface (%s) does not support wireless mode operation."), $iface);
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}
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echo json_encode($msg);
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}
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