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wifi-scripts: ucode: export HE and EHT operation in scan results

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Export WiFi 6E (HE) and WiFi 7 (EHT) operation data in scan results.
These additional data can be useful to check wifi channel utilization
by nearby stations.

Example:
Cell 32 - Address: xx:xx:xx:xx:xx:xx
          Mode: Master  Frequency: 6.115 GHz  Band: 6 GHz  Channel: 33
          Signal: -14 dBm  Quality: 70/70
          Encryption: SAE (CCMP)
          HE Operation:
                Center Frequency 1: 39
                Center Frequency 2: 47
                Channel Width: 160 MHz
          EHT Operation:
                Center Frequency 1: 47
                Center Frequency 2: 63
                Channel Width: 320 MHz

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Link: https://github.com/openwrt/openwrt/pull/19208
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Aleksander Jan Bajkowski 2025-05-17 10:01:27 +02:00 • committed by Hauke Mehrtens
parent c2e5bded8d
commit 1035615731
2 changed files with 54 additions and 0 deletions
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14
package/network/config/wifi-scripts/files-ucode/usr/bin/iwinfo
View file

@ -91,6 +91,20 @@ function print_scan(cells) {
printf('\t\tChannel Width: %s\n', cell.vht.chan_width);
}
if (cell.he) {
printf('\t HE Operation:\n');
printf('\t\tCenter Frequency 1: %d\n', cell.he.center_chan_1);
printf('\t\tCenter Frequency 2: %s\n', cell.he.center_chan_2);
printf('\t\tChannel Width: %s\n', cell.he.chan_width);
}
if (cell.eht) {
printf('\t EHT Operation:\n');
printf('\t\tCenter Frequency 1: %d\n', cell.eht.center_chan_1);
printf('\t\tCenter Frequency 2: %s\n', cell.eht.center_chan_2);
printf('\t\tChannel Width: %s\n', cell.eht.chan_width);
}
printf('\n');
}
}

40
package/network/config/wifi-scripts/files-ucode/usr/share/ucode/iwinfo.uc
View file

@ -481,6 +481,42 @@ export function countrylist(dev) {
return list;
};
function scan_extension(ext, cell) {
const eht_chan_width = [ '20 MHz', '40 MHz', '80 MHz', '160 MHz', '320 MHz'];
switch(ord(ext, 0)) {
case 36:
let offset = 7;
if (!(ord(ext, 3) & 0x2))
break;
if (ord(ext, 2) & 0x40)
offset += 3;
if (ord(ext, 2) & 0x80)
offset += 1;
cell.he = {
chan_width: eht_chan_width[ord(ext, offset + 1) & 0x3],
center_chan_1: ord(ext, offset + 2),
center_chan_2: ord(ext, offset + 3),
};
break;
case 106:
if (!(ord(ext, 1) & 0x1))
break;
cell.eht = {
chan_width: eht_chan_width[ord(ext, 6) & 0x7],
center_chan_1: ord(ext, 7),
center_chan_2: ord(ext, 8),
};
break;
}
};
export function scan(dev) {
const rsn_cipher = [ 'NONE', 'WEP-40', 'TKIP', 'WRAP', 'CCMP', 'WEP-104', 'AES-OCB', 'CKIP', 'GCMP', 'GCMP-256', 'CCMP-256' ];
const ht_chan_offset = [ 'no secondary', 'above', '[reserved]', 'below' ];
@ -591,6 +627,10 @@ export function scan(dev) {
center_chan_2: ord(ie.data, 2),
};
break;
case 255:
scan_extension(ie.data, cell);
break;
};