--- linux/include/net/ip.h.pre-ipsec	Thu Aug 12 09:14:00 1999
+++ linux/include/net/ip.h	Mon Aug 30 10:17:19 1999
@@ -31,6 +31,10 @@
 #include <linux/in_route.h>
 #include <net/route.h>
 #include <net/arp.h>
+#if defined(CONFIG_IPSEC) || defined(CONFIG_IPSEC_MODULE)
+#include "../../net/ipsec/sadb.h"
+#include "../../net/ipsec/ipsec.h"
+#endif
 
 #ifndef _SNMP_H
 #include <net/snmp.h>
@@ -161,6 +165,15 @@
 
 extern __inline__ void ip_send(struct sk_buff *skb)
 {
+#if defined(CONFIG_IPSEC) || defined(CONFIG_IPSEC_MODULE)
+        if (ipsec_control){
+                skb = ipsec_control->output(skb,0,0);
+                if (!skb){
+                        ip_statistics.IpOutDiscards++;
+                        return;
+                }
+        }
+#endif
 	if (skb->len > skb->dst->pmtu)
 		ip_fragment(skb, __ip_finish_output);
 	else