Remove unused send_eapol() driver op

The send_eapol() callback was used by driver_test.c, but with that
removed, there is no remaining users of the alternative EAPOL frame
transmitting mechanism in wpa_supplicant, i.e., all remaining driver
interfaces use l2_packet instead. Remove the send_eapol() to get rid of
unused code.

Signed-off-by: Jouni Malinen <j@w1.fi>

src/drivers/driver.h

@@ -1725,27 +1725,6 @@ struct wpa_driver_ops {
 	 * a MAC address. */
 	const u8 * (*get_mac_addr)(void *priv);
 
-	/**
-	 * send_eapol - Optional function for sending EAPOL packets
-	 * @priv: private driver interface data
-	 * @dest: Destination MAC address
-	 * @proto: Ethertype
-	 * @data: EAPOL packet starting with IEEE 802.1X header
-	 * @data_len: Size of the EAPOL packet
-	 *
-	 * Returns: 0 on success, -1 on failure
-	 *
-	 * This optional function can be used to override l2_packet operations
-	 * with driver specific functionality. If this function pointer is set,
-	 * l2_packet module is not used at all and the driver interface code is
-	 * responsible for receiving and sending all EAPOL packets. The
-	 * received EAPOL packets are sent to core code with EVENT_EAPOL_RX
-	 * event. The driver interface is required to implement get_mac_addr()
-	 * handler if send_eapol() is used.
-	 */
-	int (*send_eapol)(void *priv, const u8 *dest, u16 proto,
-			  const u8 *data, size_t data_len);
-
 	/**
 	 * set_operstate - Sets device operating state to DORMANT or UP
 	 * @priv: private driver interface data
@@ -3477,9 +3456,7 @@ enum wpa_event_type {
 	 * EVENT_EAPOL_RX - Report received EAPOL frame
 	 *
 	 * When in AP mode with hostapd, this event is required to be used to
-	 * deliver the receive EAPOL frames from the driver. With
-	 * %wpa_supplicant, this event is used only if the send_eapol() handler
-	 * is used to override the use of l2_packet for EAPOL frame TX.
+	 * deliver the receive EAPOL frames from the driver.
 	 */
 	EVENT_EAPOL_RX,
 

src/drivers/driver_none.c

@@ -74,13 +74,6 @@ static void none_driver_deinit(void *priv)
 }
 
 
-static int none_driver_send_eapol(void *priv, const u8 *dest, u16 proto,
-				  const u8 *data, size_t data_len)
-{
-	return -1;
-}
-
-
 const struct wpa_driver_ops wpa_driver_none_ops = {
 	.name = "none",
 	.desc = "no driver (RADIUS server/WPS ER)",
@@ -89,5 +82,4 @@ const struct wpa_driver_ops wpa_driver_none_ops = {
 	.send_ether = none_driver_send_ether,
 	.init = none_driver_init,
 	.deinit = none_driver_deinit,
-	.send_eapol = none_driver_send_eapol,
 };

wpa_supplicant/driver_i.h

@@ -244,16 +244,6 @@ static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
 	return NULL;
 }
 
-static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
-				     const u8 *dst, u16 proto,
-				     const u8 *data, size_t data_len)
-{
-	if (wpa_s->driver->send_eapol)
-		return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
-						 data, data_len);
-	return -1;
-}
-
 static inline int wpa_drv_set_operstate(struct wpa_supplicant *wpa_s,
 					int state)
 {

wpa_supplicant/ibss_rsn.c

@@ -72,7 +72,7 @@ static int supp_ether_send(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
 	if (wpa_s->l2)
 		return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
 
-	return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
+	return -1;
 }
 
 
@@ -283,7 +283,7 @@ static int auth_send_eapol(void *ctx, const u8 *addr, const u8 *data,
 		return l2_packet_send(wpa_s->l2, addr, ETH_P_EAPOL, data,
 				      data_len);
 
-	return wpa_drv_send_eapol(wpa_s, addr, ETH_P_EAPOL, data, data_len);
+	return -1;
 }
 
 

wpa_supplicant/wpa_supplicant.c

@@ -2825,15 +2825,9 @@ void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
 
 int wpa_supplicant_update_mac_addr(struct wpa_supplicant *wpa_s)
 {
-	if (wpa_s->driver->send_eapol) {
-		const u8 *addr = wpa_drv_get_mac_addr(wpa_s);
-		if (addr)
-			os_memcpy(wpa_s->own_addr, addr, ETH_ALEN);
-	} else if ((!wpa_s->p2p_mgmt ||
-		    !(wpa_s->drv_flags &
-		      WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
-		   !(wpa_s->drv_flags &
-		     WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
+	if ((!wpa_s->p2p_mgmt ||
+	     !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_DEDICATED_P2P_DEVICE)) &&
+	    !(wpa_s->drv_flags & WPA_DRIVER_FLAGS_P2P_DEDICATED_INTERFACE)) {
 		l2_packet_deinit(wpa_s->l2);
 		wpa_s->l2 = l2_packet_init(wpa_s->ifname,
 					   wpa_drv_get_mac_addr(wpa_s),

wpa_supplicant/wpas_glue.c

@@ -115,7 +115,7 @@ static int wpa_ether_send(struct wpa_supplicant *wpa_s, const u8 *dest,
 		return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
 	}
 
-	return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
+	return -1;
 }
 #endif /* IEEE8021X_EAPOL || !CONFIG_NO_WPA */