--- web100_stats.c.0	Wed Feb 20 08:15:56 2002
+++ web100_stats.c	Wed Feb 20 08:24:03 2002
@@ -25,6 +25,10 @@
 #include <net/tcp.h>
 #include <linux/string.h>
 #include <linux/proc_fs.h>
+#include <linux/kernel.h>
+#include <linux/malloc.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
 #include <asm/atomic.h>
 
 #define WC_INF32	0xffffffff
@@ -226,6 +230,7 @@
 
 void web100_stats_destroy(struct web100stats *stats)
 {
+	web100_netlink_event(1,stats->wc_cid);
 	stats_persist(stats);
 	web100_stats_unuse(stats);
 }
@@ -278,6 +283,7 @@
 	vars->RecvISS = vars->rcv_nxt = tp->rcv_nxt;
 	
 	stats_link(stats);
+	web100_netlink_event(0,stats->wc_cid);
 }
 
 /*
@@ -582,3 +588,47 @@
 	tp->rcv_ssthresh = min(tp->rcv_ssthresh, tp->window_clamp);
 	tp->snd_cwnd_stamp = tcp_time_stamp;
 }
+
+/* thd netlink stuff
+ * also a mod in tcp.c 
+ * mod linux/netlink.h NETLINK_WEB100  10
+*/
+
+static struct sock  *hndl;
+/* this would handle writes from the user to raw socket or /dev/web100 */
+static int web100_netlink_call(minor,skb)
+int minor;
+struct sk_buff *skb;
+{
+	return 0;
+}
+
+int web100_netlink_init()
+{
+	/* attach to web100 device, called once at boot */
+	hndl =netlink_kernel_create(NETLINK_WEB100, web100_netlink_call);
+	if (hndl == NULL)
+	  printk("KERN_INFO web100_netlink create failure\n");
+	return 0;
+}
+
+void web100_netlink_event(int type, int cid)
+{
+	/* post an event to the daemon(s) */
+	struct Msg {
+		int type;
+		int cid;
+	} *msg;
+	struct sk_buff *tmpskb;
+
+	if (hndl == NULL) return;
+	tmpskb=alloc_skb((sizeof(struct Msg)), GFP_ATOMIC);
+	if(tmpskb) {
+		skb_put(tmpskb,sizeof(struct Msg));
+		msg = (struct Msg *)tmpskb->data;
+		msg->type = type;
+		msg->cid = cid;
+		netlink_broadcast(hndl, tmpskb, 0, ~0, GFP_ATOMIC);
+	} else
+	   printk(KERN_INFO "web100_netlink alloc_skb failure\n");
+}