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mwifiex: support for parsing TDLS discovery frames

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This patch adds support for parsing TDLS discovery
frames. After parsing, we update peer RSSI information.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Avinash Patil 2014-11-13 21:54:17 +05:30 committed by John W. Linville
parent 9927baa3c7
commit 72e5aa8d2a
1 changed files with 38 additions and 0 deletions
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38
drivers/net/wireless/mwifiex/util.c
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@ -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),