hostap: add radiotap support in monitor mode
Provide MAC time, rate, channel, signal and noise.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c
index 4fd7380..d669e59 100644
--- a/drivers/net/wireless/hostap/hostap_80211_rx.c
+++ b/drivers/net/wireless/hostap/hostap_80211_rx.c
@@ -78,6 +78,9 @@
prism_header = 2;
phdrlen = sizeof(struct linux_wlan_ng_cap_hdr);
}
+ } else if (dev->type == ARPHRD_IEEE80211_RADIOTAP) {
+ prism_header = 3;
+ phdrlen = sizeof(struct hostap_radiotap_rx);
} else {
prism_header = 0;
phdrlen = 0;
@@ -165,6 +168,24 @@
hdr->ssi_noise = htonl(rx_stats->noise);
hdr->preamble = htonl(0); /* unknown */
hdr->encoding = htonl(1); /* cck */
+ } else if (prism_header == 3) {
+ struct hostap_radiotap_rx *hdr;
+ hdr = (struct hostap_radiotap_rx *)skb_push(skb, phdrlen);
+ memset(hdr, 0, phdrlen);
+ hdr->hdr.it_len = cpu_to_le16(phdrlen);
+ hdr->hdr.it_present =
+ cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) |
+ (1 << IEEE80211_RADIOTAP_CHANNEL) |
+ (1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
+ (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE));
+ hdr->tsft = cpu_to_le64(rx_stats->mac_time);
+ hdr->chan_freq = cpu_to_le16(freq_list[local->channel - 1]);
+ hdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_CCK |
+ IEEE80211_CHAN_2GHZ);
+ hdr->rate = rx_stats->rate / 5;
+ hdr->dbm_antsignal = rx_stats->signal;
+ hdr->dbm_antnoise = rx_stats->noise;
}
ret = skb->len - phdrlen;