[patch] IWSPY support for ad-hoc mode

[dannys at changind.com]

Below is a patch (based on 0.0.4) that allows for IWSPY support in
ad-hoc mode.  It may very well work for all modes or break other
modes.  I've only tested it in ad-hoc.  But it seems to work decently.

A slightly nicer feature in this patch is that any MAC address may be
entered, regardless of whether it's been seen before or not.
(contrary to the wlan-ng drivers, which can only add MAC's that are
currently visible).  I don't know if that was a requirement of
wireless extensions or not.  But I like being able to add any MAC
better.



diff -uNr hostap-0.0.4.orig/driver/modules/hostap_80211_rx.c hostap-0.0.4/driver/modules/hostap_80211_rx.c
--- hostap-0.0.4.orig/driver/modules/hostap_80211_rx.c	Sun Jul 27 10:52:41 2003
+++ hostap-0.0.4/driver/modules/hostap_80211_rx.c	Fri Sep  5 10:54:59 2003
@@ -584,6 +584,7 @@
 	}
 #endif /* IW_WIRELESS_SPY */
 #endif /* WIRELESS_EXT > 15 */
+	hostap_update_rx_stats(local->ap, hdr, rx_stats);
 
 	if (local->iw_mode == IW_MODE_MONITOR) {
 		monitor_rx(dev, skb, rx_stats);
diff -uNr hostap-0.0.4.orig/driver/modules/hostap_ioctl.c hostap-0.0.4/driver/modules/hostap_ioctl.c
--- hostap-0.0.4.orig/driver/modules/hostap_ioctl.c	Sun Jul 27 20:28:32 2003
+++ hostap-0.0.4/driver/modules/hostap_ioctl.c	Fri Sep  5 11:21:49 2003
@@ -286,12 +286,14 @@
 	struct sockaddr addr[IW_MAX_SPY];
 	struct iw_quality qual[IW_MAX_SPY];
 
+#if 0
 	if (local->iw_mode != IW_MODE_MASTER) {
 		printk("SIOCGIWSPY is currently only supported in Host AP "
 		       "mode\n");
 		srq->length = 0;
 		return -EOPNOTSUPP;
 	}
+#endif
 
 	srq->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_SPY, 0);
 
@@ -301,6 +303,28 @@
 
 	return 0;
 }
+
+static int prism2_ioctl_siwspy(struct net_device *dev,
+			       struct iw_request_info *info,
+			       struct iw_point *srq, char *extra)
+{
+    local_info_t *local = (local_info_t *)dev->priv;
+    struct ap_data *ap = local->ap;
+    struct sockaddr *addr;
+    int i;
+
+
+    if( srq->length > IW_MAX_SPY )
+        return -E2BIG;
+
+    addr = (struct sockaddr *)(extra + sizeof(srq->length));
+
+    for(i=0; i<srq->length; i++, addr++) {
+        hostap_add_sta(ap, (uint8_t *)addr);
+    }
+
+	return 0;
+}
 #endif /* WIRELESS_EXT <= 15 */
 
 
@@ -3132,7 +3156,7 @@
 	iw_handler_set_thrspy,				/* SIOCSIWTHRSPY */
 	iw_handler_get_thrspy,				/* SIOCGIWTHRSPY */
 #else /* WIRELESS_EXT > 15 */
-	(iw_handler) NULL,				/* SIOCSIWSPY */
+	(iw_handler) prism2_ioctl_siwspy,		/* SIOCSIWSPY */
 	(iw_handler) prism2_ioctl_giwspy,		/* SIOCGIWSPY */
 	(iw_handler) NULL,				/* -- hole -- */
 	(iw_handler) NULL,				/* -- hole -- */