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| author | Pavel Roskin <proski@gnu.org> | 2008-06-27 16:20:10 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-06-30 17:37:36 -0400 |
| commit | 573b933f8f20ce298f6ff83d5ecc7b99ff3abb12 (patch) | |
| tree | 92ae63925f73ca981f2fec9c511f2a3de2c99ccd /drivers/net/wireless/hostap/hostap_80211_rx.c | |
| parent | b53a5dabc5e0a0a1882a16446fb3d22d6a16114d (diff) | |
| download | lwn-573b933f8f20ce298f6ff83d5ecc7b99ff3abb12.tar.gz lwn-573b933f8f20ce298f6ff83d5ecc7b99ff3abb12.zip | |
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>
Diffstat (limited to 'drivers/net/wireless/hostap/hostap_80211_rx.c')
| -rw-r--r-- | drivers/net/wireless/hostap/hostap_80211_rx.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c index 4fd73809602e..d669e5956ce7 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; |