This patch adds support for parsing TDLS discovery
frames. After parsing, we update peer RSSI information.
Signed-off-by: Avinash Patil <patila@xxxxxxxxxxx>
Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
---
drivers/net/wireless/mwifiex/util.c | 38 +++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c
index ec79c49..a113ef8 100644
--- a/drivers/net/wireless/mwifiex/util.c
+++ b/drivers/net/wireless/mwifiex/util.c
@@ -141,6 +141,38 @@ int mwifiex_get_debug_info(struct mwifiex_private *priv,
return 0;
}
+static int
+mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len,
+ struct rxpd *rx_pd)
+{
+ u16 stype;
+ u8 category, action_code;
+ struct ieee80211_hdr *ieee_hdr = (void *)payload;
+
+ stype = (cpu_to_le16(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE);
+
+ switch (stype) {
+ case IEEE80211_STYPE_ACTION:
+ category = *(payload + sizeof(struct ieee80211_hdr));
+ action_code = *(payload + sizeof(struct ieee80211_hdr) + 1);
+ if (category == WLAN_CATEGORY_PUBLIC &&
+ action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) {
+ dev_dbg(priv->adapter->dev,
+ "TDLS discovery response %pM nf=%d, snr=%d\n",
+ ieee_hdr->addr2, rx_pd->nf, rx_pd->snr);
+ mwifiex_auto_tdls_update_peer_signal(priv,
+ ieee_hdr->addr2,
+ rx_pd->snr,
+ rx_pd->nf);
+ }
+ break;
+ default:
+ dev_dbg(priv->adapter->dev,
+ "unknown mgmt frame subytpe %#x\n", stype);
+ }
+
+ return 0;
+}
/*
* This function processes the received management packet and send it
* to the kernel.
@@ -151,6 +183,7 @@ mwifiex_process_mgmt_packet(struct mwifiex_private *priv,
{
struct rxpd *rx_pd;
u16 pkt_len;
+ struct ieee80211_hdr *ieee_hdr;
if (!skb)
return -1;
@@ -162,6 +195,11 @@ mwifiex_process_mgmt_packet(struct mwifiex_private *priv,
pkt_len = le16_to_cpu(rx_pd->rx_pkt_length);
+ ieee_hdr = (void *)skb->data;
+ if (ieee80211_is_mgmt(ieee_hdr->frame_control)) {
+ mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr,
+ pkt_len, rx_pd);
+ }
/* Remove address4 */
memmove(skb->data + sizeof(struct ieee80211_hdr_3addr),
skb->data + sizeof(struct ieee80211_hdr),
--
1.8.1.4
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