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pc_wifi_drv: handle reauth silently

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In case we are instructed to reauthenticate and were already
authenticated we ignore the request in the management layer
and let 'wpa_supplicant' deal with that.

Fixes #4488.
This commit is contained in:
Josef Söntgen 2022-04-07 16:26:24 +02:00 committed by Christian Helmuth
parent a8402ae782
commit 74b5a4ae7a
1 changed files with 18 additions and 0 deletions
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18
repos/pc/src/drivers/wifi/pc/frontend.h
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@ -1352,6 +1352,10 @@ struct Wifi::Frontend
bool _connected_event { false };
bool _disconnected_event { false };
bool _disconnected_fail { false };
bool _was_connected { false };
enum { MAX_REAUTH_ATTEMPTS = 1 };
unsigned _reauth_attempts { 0 };
enum { MAX_ATTEMPTS = 3, };
unsigned _scan_attempts { 0 };
@ -1360,6 +1364,10 @@ struct Wifi::Frontend
void _handle_connection_events(char const *msg)
{
_connected_event = false;
_disconnected_event = false;
_disconnected_fail = false;
bool const connected = check_recv_msg(msg, recv_table[Rmi::CONNECTED]);
bool const disconnected = check_recv_msg(msg, recv_table[Rmi::DISCONNECTED]);
bool const auth_failed = disconnected && _auth_failure(msg);
@ -1367,6 +1375,16 @@ struct Wifi::Frontend
State state = connected ? State::CONNECTED : State::DISCONNECTED;
Accesspoint::Bssid const &bssid = _extract_bssid(msg, state);
/* simplistic heuristic to ignore re-authentication requests */
if (_connected_ap.bssid.valid() && auth_failed) {
if (_reauth_attempts < MAX_ATTEMPTS) {
Genode::log("ignore deauth from: ", _connected_ap.bssid);
_reauth_attempts++;
return;
}
}
_reauth_attempts = 0;
/*
* Always reset the "global" connection state first
*/