main
This commit is contained in:
+151
-207
@@ -1,216 +1,160 @@
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<?php
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/**
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* Helper functions for the WiFi configuration page (admin/wifi.php).
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*
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* Three small utilities:
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* - {@see GetDistString()} Substring extraction by offset + delimiter.
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* - {@see ParseConfig()} Convert an array of `key=value` lines into
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* an associative array, skipping comments.
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* - {@see ConvertToChannel()} Map a wireless centre frequency (MHz, as
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* reported by `iwconfig` / `iw dev`) to a
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* human-readable "2.4GHz Ch6" / "5.0GHz
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* Ch149" label.
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* - {@see ConvertToSecurity()} Map a wpa_supplicant security flag string
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* to a friendly label (e.g. WPA2-PSK (AES)).
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*
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* Included from admin/wifi.php to back the wireless info / scan UI.
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*/
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/**
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* Extract a substring from `$input` starting `$offset` bytes after the
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* occurrence of `$string`, ending at the first `$separator` after that.
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*
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* @param string $input The haystack to search.
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* @param string $string Anchor token that marks the start point.
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* @param int $offset Byte offset added past the anchor.
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* @param string $separator Delimiter that ends the slice.
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* @return string The extracted substring.
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*/
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function GetDistString($input, $string, $offset, $separator)
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{
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$string = substr($input, strpos($input, $string) + $offset, strpos(substr($input, strpos($input, $string) + $offset), $separator));
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return $string;
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function GetDistString($input,$string,$offset,$separator) {
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$string = substr($input,strpos($input,$string)+$offset,strpos(substr($input,strpos($input,$string)+$offset),$separator));
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return $string;
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}
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/**
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* Parse an array of `key=value` lines (typically from a wpa_supplicant
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* or hostapd config) into an associative array. Lines beginning with
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* `#` are treated as comments and skipped.
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*
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* @param array<int,string> $arrConfig One line per element.
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* @return array<string,string> Keyed by the LHS of the first `=` per line.
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*/
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function ParseConfig($arrConfig)
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{
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$config = array();
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foreach ($arrConfig as $line) {
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if ($line[0] != "#") {
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$arrLine = explode("=", $line);
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$config[$arrLine[0]] = $arrLine[1];
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}
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}
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return $config;
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function ParseConfig($arrConfig) {
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$config = array();
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foreach($arrConfig as $line) {
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if($line[0] != "#") {
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$arrLine = explode("=",$line);
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$config[$arrLine[0]] = $arrLine[1];
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}
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}
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return $config;
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}
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/**
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* Map a wireless centre frequency to a friendly channel label.
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*
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* Accepts either MHz integers (e.g. "2412" → "2.4GHz Ch1", "5180" →
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* "5.0GHz Ch36") or some legacy short forms emitted by older `iw`
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* builds (e.g. "504" / "508" for 5GHz channels in the 5MHz grid).
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*
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* @param string $freq Centre frequency as reported by iwconfig/iw.
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* @return string Friendly channel label, or "Invalid Channel" if unmapped.
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*/
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function ConvertToChannel($freq)
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{
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$wifiFreqToChan = array (
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"2412" => "2.4GHz Ch1",
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"2417" => "2.4GHz Ch2",
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"2422" => "2.4GHz Ch3",
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"2427" => "2.4GHz Ch4",
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"2432" => "2.4GHz Ch5",
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"2437" => "2.4GHz Ch6",
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"2442" => "2.4GHz Ch7",
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"2447" => "2.4GHz Ch8",
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"2452" => "2.4GHz Ch9",
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"2457" => "2.4GHz Ch10",
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"2462" => "2.4GHz Ch11",
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"2467" => "2.4GHz Ch12",
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"2472" => "2.4GHz Ch13",
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"2484" => "2.4GHz Ch14",
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"504" => "5.0GHz Ch8",
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"506" => "5.0GHz Ch12",
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"508" => "5.0GHz Ch16",
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"517" => "5.0GHz Ch34",
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"518" => "5.0GHz Ch36",
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"519" => "5.0GHz Ch38",
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"520" => "5.0GHz Ch40",
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"521" => "5.0GHz Ch42",
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"522" => "5.0GHz Ch44",
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"523" => "5.0GHz Ch46",
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"524" => "5.0GHz Ch48",
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"526" => "5.0GHz Ch52",
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"528" => "5.0GHz Ch56",
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"530" => "5.0GHz Ch60",
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"532" => "5.0GHz Ch64",
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"550" => "5.0GHz Ch100",
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"552" => "5.0GHz Ch104",
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"554" => "5.0GHz Ch108",
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"556" => "5.0GHz Ch112",
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"558" => "5.0GHz Ch116",
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"560" => "5.0GHz Ch120",
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"562" => "5.0GHz Ch124",
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"564" => "5.0GHz Ch128",
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"566" => "5.0GHz Ch132",
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"568" => "5.0GHz Ch136",
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"570" => "5.0GHz Ch140",
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"492" => "5.0GHz Ch184",
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"494" => "5.0GHz Ch188",
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"496" => "5.0GHz Ch192",
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"498" => "5.0GHz Ch196",
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"5035" => "5.0GHz Ch7",
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"5040" => "5.0GHz Ch8",
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"5045" => "5.0GHz Ch9",
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"5055" => "5.0GHz Ch11",
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"5060" => "5.0GHz Ch12",
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"5080" => "5.0GHz Ch16",
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"5170" => "5.0GHz Ch34",
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"5180" => "5.0GHz Ch36",
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"5190" => "5.0GHz Ch38",
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"5200" => "5.0GHz Ch40",
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"5210" => "5.0GHz Ch42",
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"5220" => "5.0GHz Ch44",
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"5230" => "5.0GHz Ch46",
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"5240" => "5.0GHz Ch48",
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"5260" => "5.0GHz Ch52",
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"5280" => "5.0GHz Ch56",
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"5300" => "5.0GHz Ch60",
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"5320" => "5.0GHz Ch64",
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"5500" => "5.0GHz Ch100",
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"5520" => "5.0GHz Ch104",
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"5540" => "5.0GHz Ch108",
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"5560" => "5.0GHz Ch112",
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"5580" => "5.0GHz Ch116",
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"5600" => "5.0GHz Ch120",
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"5620" => "5.0GHz Ch124",
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"5640" => "5.0GHz Ch128",
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"5660" => "5.0GHz Ch132",
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"5680" => "5.0GHz Ch136",
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"5700" => "5.0GHz Ch140",
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"5745" => "5.0GHz Ch149",
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"5765" => "5.0GHz Ch153",
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"5785" => "5.0GHz Ch157",
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"5805" => "5.0GHz Ch161",
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"5825" => "5.0GHz Ch165",
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"4915" => "5.0GHz Ch183",
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"4920" => "5.0GHz Ch184",
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"4925" => "5.0GHz Ch185",
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"4935" => "5.0GHz Ch187",
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"4940" => "5.0GHz Ch188",
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"4945" => "5.0GHz Ch189",
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"4960" => "5.0GHz Ch192",
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"4980" => "5.0GHz Ch196"
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);
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if (array_key_exists($freq, $wifiFreqToChan)) { return $wifiFreqToChan[$freq]; }
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else { return "Invalid Channel"; }
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function ConvertToChannel($freq) {
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$wifiFreqToChan = array (
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"2412" => "2.4GHz Ch1",
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"2417" => "2.4GHz Ch2",
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"2422" => "2.4GHz Ch3",
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"2427" => "2.4GHz Ch4",
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"2432" => "2.4GHz Ch5",
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"2437" => "2.4GHz Ch6",
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"2442" => "2.4GHz Ch7",
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"2447" => "2.4GHz Ch8",
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"2452" => "2.4GHz Ch9",
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"2457" => "2.4GHz Ch10",
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"2462" => "2.4GHz Ch11",
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"2467" => "2.4GHz Ch12",
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"2472" => "2.4GHz Ch13",
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"2484" => "2.4GHz Ch14",
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"504" => "5.0GHz Ch8",
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"506" => "5.0GHz Ch12",
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"508" => "5.0GHz Ch16",
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"517" => "5.0GHz Ch34",
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"518" => "5.0GHz Ch36",
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"519" => "5.0GHz Ch38",
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"520" => "5.0GHz Ch40",
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"521" => "5.0GHz Ch42",
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"522" => "5.0GHz Ch44",
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"523" => "5.0GHz Ch46",
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"524" => "5.0GHz Ch48",
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"526" => "5.0GHz Ch52",
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"528" => "5.0GHz Ch56",
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"530" => "5.0GHz Ch60",
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"532" => "5.0GHz Ch64",
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"550" => "5.0GHz Ch100",
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"552" => "5.0GHz Ch104",
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"554" => "5.0GHz Ch108",
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"556" => "5.0GHz Ch112",
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"558" => "5.0GHz Ch116",
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"560" => "5.0GHz Ch120",
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"562" => "5.0GHz Ch124",
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"564" => "5.0GHz Ch128",
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"566" => "5.0GHz Ch132",
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"568" => "5.0GHz Ch136",
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"570" => "5.0GHz Ch140",
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"492" => "5.0GHz Ch184",
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"494" => "5.0GHz Ch188",
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"496" => "5.0GHz Ch192",
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"498" => "5.0GHz Ch196",
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"5035" => "5.0GHz Ch7",
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"5040" => "5.0GHz Ch8",
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"5045" => "5.0GHz Ch9",
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"5055" => "5.0GHz Ch11",
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"5060" => "5.0GHz Ch12",
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"5080" => "5.0GHz Ch16",
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"5170" => "5.0GHz Ch34",
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"5180" => "5.0GHz Ch36",
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"5190" => "5.0GHz Ch38",
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"5200" => "5.0GHz Ch40",
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"5210" => "5.0GHz Ch42",
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"5220" => "5.0GHz Ch44",
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"5230" => "5.0GHz Ch46",
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"5240" => "5.0GHz Ch48",
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"5260" => "5.0GHz Ch52",
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"5280" => "5.0GHz Ch56",
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"5300" => "5.0GHz Ch60",
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"5320" => "5.0GHz Ch64",
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"5500" => "5.0GHz Ch100",
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"5520" => "5.0GHz Ch104",
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"5540" => "5.0GHz Ch108",
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"5560" => "5.0GHz Ch112",
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"5580" => "5.0GHz Ch116",
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"5600" => "5.0GHz Ch120",
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"5620" => "5.0GHz Ch124",
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"5640" => "5.0GHz Ch128",
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"5660" => "5.0GHz Ch132",
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"5680" => "5.0GHz Ch136",
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"5700" => "5.0GHz Ch140",
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"5745" => "5.0GHz Ch149",
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"5765" => "5.0GHz Ch153",
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"5785" => "5.0GHz Ch157",
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"5805" => "5.0GHz Ch161",
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"5825" => "5.0GHz Ch165",
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"4915" => "5.0GHz Ch183",
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"4920" => "5.0GHz Ch184",
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"4925" => "5.0GHz Ch185",
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"4935" => "5.0GHz Ch187",
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"4940" => "5.0GHz Ch188",
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"4945" => "5.0GHz Ch189",
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"4960" => "5.0GHz Ch192",
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"4980" => "5.0GHz Ch196"
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);
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if (array_key_exists($freq, $wifiFreqToChan)) { return $wifiFreqToChan[$freq]; }
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else { return "Invalid Channel"; }
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}
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/**
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* Map a wpa_supplicant security flag string to a human-friendly label.
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*
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* Input is the bracketed token list reported by `wpa_cli scan_results`
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* (e.g. "[WPA2-PSK-CCMP][ESS]" → "WPA2-PSK (AES)"). Unknown flag strings
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* fall through to the default branch and are returned verbatim so the
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* UI never silently swallows a network it doesn't recognise.
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*
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* @param string $security Bracketed flag list from wpa_cli output.
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* @return string Friendly security descriptor, or the raw flag string.
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*/
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function ConvertToSecurity($security)
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{
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switch ($security) {
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case "[WPA2-PSK-CCMP][ESS]":
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return "WPA2-PSK (AES)";
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break;
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case "[WPA2-PSK-CCMP-preauth][ESS]":
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return "WPA2-PSK (AES) with Preauth";
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break;
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case "[WPA2-PSK-TKIP][ESS]":
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return "WPA2-PSK (TKIP)";
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break;
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case "[WPA2-PSK-CCMP][WPS][ESS]":
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return "WPA2-PSK (TKIP) with WPS";
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break;
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case "[WPA-PSK-TKIP+CCMP][WPS][ESS]":
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return "WPA-PSK (TKIP/AES) with WPS";
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break;
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case "[WPA-PSK-TKIP][WPA2-PSK-CCMP][WPS][ESS]":
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return "WPA/WPA2-PSK (TKIP)";
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break;
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case "[WPA-PSK-TKIP+CCMP][WPA2-PSK-TKIP+CCMP][ESS]":
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return "WPA/WPA2-PSK (TKIP/AES)";
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break;
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case "[WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP-preauth][ESS]":
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return "WPA/WPA2-PSK (TKIP/AES) with Preauth";
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break;
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case "[WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][WPS][ESS]":
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return "WPA/WPA2-PSK (TKIP/AES) with WPS";
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break;
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case "[WPA-PSK-CCMP][WPA2-PSK-CCMP][WPS][ESS]":
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return "WPA/WPA2-PSK (AES) with WPS";
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break;
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case "[WPA-PSK-TKIP][ESS]":
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return "WPA-PSK (TKIP)";
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break;
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case "[WEP][ESS]":
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return "WEP";
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break;
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case "[ESS]":
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return "None";
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break;
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default:
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return $security;
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break;
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}
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function ConvertToSecurity($security) {
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switch($security) {
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case "[WPA2-PSK-CCMP][ESS]":
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return "WPA2-PSK (AES)";
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break;
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case "[WPA2-PSK-CCMP-preauth][ESS]":
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return "WPA2-PSK (AES) with Preauth";
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break;
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case "[WPA2-PSK-TKIP][ESS]":
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return "WPA2-PSK (TKIP)";
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break;
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case "[WPA2-PSK-CCMP][WPS][ESS]":
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return "WPA2-PSK (TKIP) with WPS";
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break;
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case "[WPA-PSK-TKIP+CCMP][WPS][ESS]":
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return "WPA-PSK (TKIP/AES) with WPS";
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break;
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case "[WPA-PSK-TKIP][WPA2-PSK-CCMP][WPS][ESS]":
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return "WPA/WPA2-PSK (TKIP)";
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break;
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case "[WPA-PSK-TKIP+CCMP][WPA2-PSK-TKIP+CCMP][ESS]":
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return "WPA/WPA2-PSK (TKIP/AES)";
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break;
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case "[WPA-EAP-CCMP+TKIP][WPA2-EAP-CCMP+TKIP-preauth][ESS]":
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return "WPA/WPA2-PSK (TKIP/AES) with Preauth";
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break;
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case "[WPA-PSK-CCMP+TKIP][WPA2-PSK-CCMP+TKIP][WPS][ESS]":
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return "WPA/WPA2-PSK (TKIP/AES) with WPS";
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break;
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case "[WPA-PSK-CCMP][WPA2-PSK-CCMP][WPS][ESS]":
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return "WPA/WPA2-PSK (AES) with WPS";
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break;
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case "[WPA-PSK-TKIP][ESS]":
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return "WPA-PSK (TKIP)";
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break;
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case "[WEP][ESS]":
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return "WEP";
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break;
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case "[ESS]":
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return "None";
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break;
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default:
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return $security;
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break;
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}
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}
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?>
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