--- linux-source-2.6.17-orig/drivers/net/wireless/zd1211rw/zd_mac.c	2006-10-01 18:42:47.000000000 +0200
+++ linux-source-2.6.17-rawtx/drivers/net/wireless/zd1211rw/zd_mac.c	2007-04-01 22:35:50.000000000 +0200
@@ -716,6 +716,8 @@
 	u8  rt_rate;
 	u16 rt_channel;
 	u16 rt_chbitmask;
+	u8  rt_antsignal;
+	u8  rt_antnoise;
 } __attribute__((packed));
 
 static void fill_rt_header(void *buffer, struct zd_mac *mac,
@@ -729,7 +731,9 @@
 	hdr->rt_hdr.it_len = cpu_to_le16(sizeof(struct zd_rt_hdr));
 	hdr->rt_hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
 		                 (1 << IEEE80211_RADIOTAP_CHANNEL) |
-				 (1 << IEEE80211_RADIOTAP_RATE));
+				 (1 << IEEE80211_RADIOTAP_RATE) |
+		                 (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) |
+		                 (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE));
 
 	hdr->rt_flags = 0;
 	if (status->decryption_type & (ZD_RX_WEP64|ZD_RX_WEP128|ZD_RX_WEP256))
@@ -743,6 +747,12 @@
 	hdr->rt_chbitmask = cpu_to_le16(IEEE80211_CHAN_2GHZ |
 		((status->frame_status & ZD_RX_FRAME_MODULATION_MASK) ==
 		ZD_RX_OFDM ? IEEE80211_CHAN_OFDM : IEEE80211_CHAN_CCK));
+
+	hdr->rt_antsignal = status->signal_strength;
+	if(status->frame_status & ZD_RX_OFDM)
+		hdr->rt_antnoise = status->signal_strength - status->signal_quality_ofdm;
+	else
+		hdr->rt_antnoise = status->signal_strength - status->signal_quality_cck;
 }
 
 /* Returns 1 if the data packet is for us and 0 otherwise. */
@@ -834,7 +844,8 @@
 	const struct rx_status *status;
 
 	*pstatus = status = zd_tail(buffer, length, sizeof(struct rx_status));
-	if (status->frame_status & ZD_RX_ERROR) {
+	if (status->frame_status & ZD_RX_ERROR
+		|| status->frame_status & ~0x21) {
 		/* FIXME: update? */
 		return -EINVAL;
 	}