From 573b933f8f20ce298f6ff83d5ecc7b99ff3abb12 Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Fri, 27 Jun 2008 16:20:10 -0400 Subject: hostap: add radiotap support in monitor mode Provide MAC time, rate, channel, signal and noise. Signed-off-by: Pavel Roskin Signed-off-by: John W. Linville --- drivers/net/wireless/hostap/hostap_80211_rx.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/net/wireless/hostap/hostap_80211_rx.c') diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c index 4fd73809602..d669e5956ce 100644 --- a/drivers/net/wireless/hostap/hostap_80211_rx.c +++ b/drivers/net/wireless/hostap/hostap_80211_rx.c @@ -78,6 +78,9 @@ int prism2_rx_80211(struct net_device *dev, struct sk_buff *skb, 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->f.status = s; hdr->f.len = l; hdr->f.data = d 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; -- cgit v1.2.3