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qcacld-3.0: Override EAPOL BC Tx frame with AP mac addr

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Take care to update the EAPOL Tx frame DA with AP mac addr if
DA is broadcast address as EAPOL BC doesnot make sense.

Change-Id: Id58b7b7971f5a7c11de0b46c6189a6e6ad1917ab
CRs-Fixed: 2745826
This commit is contained in:
Manjunathappa Prakash 2020-07-31 16:03:15 -07:00 • committed by snandini
commit 5bf1513217
3 changed files with 41 additions and 0 deletions
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2
Kbuild
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@ -3564,6 +3564,8 @@ cppflags-$(CONFIG_RX_FISA) += -DWLAN_SUPPORT_RX_FISA
cppflags-$(CONFIG_RX_DEFRAG_DO_NOT_REINJECT) += -DRX_DEFRAG_DO_NOT_REINJECT
cppflags-$(CONFIG_HANDLE_BC_EAP_TX_FRM) += -DHANDLE_BROADCAST_EAPOL_TX_FRAME
cppflags-$(CONFIG_MORE_TX_DESC) += -DTX_TO_NPEERS_INC_TX_DESCS
ccflags-$(CONFIG_HASTINGS_BT_WAR) += -DHASTINGS_BT_WAR

2
configs/default_defconfig
View file

@ -1118,6 +1118,8 @@ CONFIG_MORE_TX_DESC := y
endif
CONFIG_HANDLE_BC_EAP_TX_FRM := y
ifeq ($(CONFIG_BAND_6GHZ), y)
CONFIG_6G_SCAN_CHAN_SORT_ALGO := y

37
core/hdd/src/wlan_hdd_tx_rx.c
View file

@ -923,6 +923,41 @@ void hdd_get_transmit_mac_addr(struct hdd_adapter *adapter, struct sk_buff *skb,
}
}
#ifdef HANDLE_BROADCAST_EAPOL_TX_FRAME
/**
* wlan_hdd_fix_broadcast_eapol() - Fix broadcast eapol
* @adapter: pointer to adapter
* @skb: pointer to OS packet (sk_buff)
*
* Override DA of broadcast eapol with bssid addr.
*
* Return: None
*/
static void wlan_hdd_fix_broadcast_eapol(struct hdd_adapter *adapter,
struct sk_buff *skb)
{
struct ethhdr *eh = (struct ethhdr *)skb->data;
unsigned char *ap_mac_addr =
&adapter->session.station.conn_info.bssid.bytes[0];
if (qdf_unlikely((QDF_NBUF_CB_GET_PACKET_TYPE(skb) ==
QDF_NBUF_CB_PACKET_TYPE_EAPOL) &&
QDF_NBUF_CB_GET_IS_BCAST(skb))) {
hdd_debug("SA: "QDF_MAC_ADDR_STR " override DA: "QDF_MAC_ADDR_STR " with AP mac address "QDF_MAC_ADDR_STR,
QDF_MAC_ADDR_ARRAY(&eh->h_source[0]),
QDF_MAC_ADDR_ARRAY(&eh->h_dest[0]),
QDF_MAC_ADDR_ARRAY(ap_mac_addr));
qdf_mem_copy(&eh->h_dest, ap_mac_addr, QDF_MAC_ADDR_SIZE);
}
}
#else
static void wlan_hdd_fix_broadcast_eapol(struct hdd_adapter *adapter,
struct sk_buff *skb)
{
}
#endif /* HANDLE_BROADCAST_EAPOL_TX_FRAME */
/**
* __hdd_hard_start_xmit() - Transmit a frame
* @skb: pointer to OS packet (sk_buff)
@ -1181,6 +1216,8 @@ static void __hdd_hard_start_xmit(struct sk_buff *skb,
goto drop_pkt_and_release_skb;
}
wlan_hdd_fix_broadcast_eapol(adapter, skb);
if (adapter->tx_fn(soc, adapter->vdev_id, (qdf_nbuf_t)skb)) {
QDF_TRACE(QDF_MODULE_ID_HDD_DATA, QDF_TRACE_LEVEL_INFO_HIGH,
"%s: Failed to send packet to txrx for sta_id: "