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| author | Michael Brown <mcb30@ipxe.org> | 2023-11-07 13:50:15 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2023-11-07 13:51:16 +0000 |
| commit | 595b1796f6dc980cf27ca3883cde3baa23655528 (patch) | |
| tree | e00ed7398c4bc85b412fbfeb21f42161b33123cb /src/net | |
| parent | 1bd01b761f1f33723f0b07d277863b3284dfe232 (diff) | |
| download | ipxe-595b1796f6dc980cf27ca3883cde3baa23655528.tar.gz | |
[eapol] Limit number of EAPoL-Start packets transmitted per attempt
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net')
| -rw-r--r-- | src/net/eapol.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/net/eapol.c b/src/net/eapol.c index ce7be55d5..8b09ca231 100644 --- a/src/net/eapol.c +++ b/src/net/eapol.c @@ -167,6 +167,7 @@ static int eapol_eap_rx ( struct eapol_supplicant *supplicant, /* Delay EAPoL-Start until after next expected packet */ DBGC ( netdev, "EAPOL %s deferring Start\n", netdev->name ); start_timer_fixed ( &supplicant->timer, EAP_WAIT_TIMEOUT ); + supplicant->count = 0; } drop: @@ -250,6 +251,12 @@ static void eapol_expired ( struct retry_timer *timer, int fail __unused ) { container_of ( timer, struct eapol_supplicant, timer ); struct net_device *netdev = supplicant->eap.netdev; + /* Stop transmitting after maximum number of attempts */ + if ( supplicant->count++ >= EAPOL_START_COUNT ) { + DBGC ( netdev, "EAPOL %s giving up\n", netdev->name ); + return; + } + /* Schedule next transmission */ start_timer_fixed ( timer, EAPOL_START_INTERVAL ); @@ -317,6 +324,7 @@ static void eapol_notify ( struct net_device *netdev, void *priv ) { /* Otherwise, start sending EAPoL-Start */ start_timer_nodelay ( &supplicant->timer ); + supplicant->count = 0; DBGC ( netdev, "EAPOL %s starting up\n", netdev->name ); } |