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authorJouni Malinen <j@w1.fi>2012-05-28 21:36:23 (GMT)
committerJouni Malinen <j@w1.fi>2012-05-28 21:36:23 (GMT)
commitf5d4dd5ad4148b2ba9350d8f3491140d40bdaa84 (patch)
tree35d092ddfe9d33977c6fd9298371320b68d4d52c /wpa_supplicant/events.c
parent8bd0fc0e0c72f1736f615d93f920433b37c4af0c (diff)
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WNM: Send empty IPv4 packet as keep-alive for now
Use an empty IPv4 packet as the keep-alive packet for WNM BSS max idle period mechanism. This is not really the best possible frame to use for this, but for now, it can do until a more suitable frame is figured out for this (e.g., special LLC header to indicate link test purposes). Signed-hostap: Jouni Malinen <j@w1.fi>
Diffstat (limited to 'wpa_supplicant/events.c')
-rw-r--r--wpa_supplicant/events.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/wpa_supplicant/events.c b/wpa_supplicant/events.c
index 61db038..d09be6c 100644
--- a/wpa_supplicant/events.c
+++ b/wpa_supplicant/events.c
@@ -1211,10 +1211,12 @@ static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
if (wpa_s->wpa_state < WPA_ASSOCIATED)
return;
- wpa_printf(MSG_DEBUG, "WNM: Send keep-alive");
+ wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
+ MAC2STR(wpa_s->bssid));
/* TODO: could skip this if normal data traffic has been sent */
- /* TODO: send keep alive frame - better use some short unicast data
- * frame that gets protected if PTK is set */
+ /* TODO: Consider using some more appropriate data frame for this */
+ if (wpa_s->l2)
+ l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0);
#ifdef CONFIG_SME
if (wpa_s->sme.bss_max_idle_period) {