Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

===================================================================
RCS file: /ftp/cvs/cvsroot/src/sys/netinet/ip_input.c,v
rcsdiff: /ftp/cvs/cvsroot/src/sys/netinet/ip_input.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.252
retrieving revision 1.257
diff -u -p -r1.252 -r1.257
--- src/sys/netinet/ip_input.c	2007/08/30 02:17:37	1.252
+++ src/sys/netinet/ip_input.c	2007/12/20 19:53:32	1.257
@@ -1,4 +1,4 @@
-/*	$NetBSD: ip_input.c,v 1.252 2007/08/30 02:17:37 dyoung Exp $	*/
+/*	$NetBSD: ip_input.c,v 1.257 2007/12/20 19:53:32 dyoung Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -98,7 +98,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_input.c,v 1.252 2007/08/30 02:17:37 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_input.c,v 1.257 2007/12/20 19:53:32 dyoung Exp $");
 
 #include "opt_inet.h"
 #include "opt_gateway.h"
@@ -469,7 +469,6 @@ ipintr(void)
 		splx(s);
 		if (m == 0)
 			return;
-		MCLAIM(m, &ip_rx_mowner);
 		ip_input(m);
 	}
 }
@@ -1013,7 +1012,6 @@ found:
 			/* XXX error stat??? */
 			error = EINVAL;
 DPRINTF(("ip_input: no SP, packet discarded\n"));/*XXX*/
-			goto bad;
 		}
 		splx(s);
 		if (error)
@@ -1777,39 +1775,16 @@ ip_srcroute(void)
 	return (m);
 }
 
-/*
- * Strip out IP options, at higher
- * level protocol in the kernel.
- * Second argument is buffer to which options
- * will be moved, and return value is their length.
- * XXX should be deleted; last arg currently ignored.
- */
-void
-ip_stripoptions(struct mbuf *m, struct mbuf *mopt)
-{
-	int i;
-	struct ip *ip = mtod(m, struct ip *);
-	void *opts;
-	int olen;
-
-	olen = (ip->ip_hl << 2) - sizeof (struct ip);
-	opts = (void *)(ip + 1);
-	i = m->m_len - (sizeof (struct ip) + olen);
-	memmove(opts, (char *)opts + olen, (unsigned)i);
-	m->m_len -= olen;
-	if (m->m_flags & M_PKTHDR)
-		m->m_pkthdr.len -= olen;
-	ip->ip_len = htons(ntohs(ip->ip_len) - olen);
-	ip->ip_hl = sizeof (struct ip) >> 2;
-}
-
 const int inetctlerrmap[PRC_NCMDS] = {
-	0,		0,		0,		0,
-	0,		EMSGSIZE,	EHOSTDOWN,	EHOSTUNREACH,
-	EHOSTUNREACH,	EHOSTUNREACH,	ECONNREFUSED,	ECONNREFUSED,
-	EMSGSIZE,	EHOSTUNREACH,	0,		0,
-	0,		0,		0,		0,
-	ENOPROTOOPT
+	[PRC_MSGSIZE] = EMSGSIZE,
+	[PRC_HOSTDEAD] = EHOSTDOWN,
+	[PRC_HOSTUNREACH] = EHOSTUNREACH,
+	[PRC_UNREACH_NET] = EHOSTUNREACH,
+	[PRC_UNREACH_HOST] = EHOSTUNREACH,
+	[PRC_UNREACH_PROTOCOL] = ECONNREFUSED,
+	[PRC_UNREACH_PORT] = ECONNREFUSED,
+	[PRC_UNREACH_SRCFAIL] = EHOSTUNREACH,
+	[PRC_PARAMPROB] = ENOPROTOOPT,
 };
 
 /*
@@ -1959,8 +1934,8 @@ ip_forward(struct mbuf *m, int srcrt)
 		type = ICMP_UNREACH;
 		code = ICMP_UNREACH_NEEDFRAG;
 #if !defined(IPSEC) && !defined(FAST_IPSEC)
-		if (ipforward_rt.ro_rt != NULL)
-			destmtu = ipforward_rt.ro_rt->rt_ifp->if_mtu;
+		if ((rt = rtcache_getrt(&ipforward_rt)) != NULL)
+			destmtu = rt->rt_ifp->if_mtu;
 #else
 		/*
 		 * If the packet is routed over IPsec tunnel, tell the
@@ -1968,7 +1943,7 @@ ip_forward(struct mbuf *m, int srcrt)
 		 *	tunnel MTU = if MTU - sizeof(IP) - ESP/AH hdrsiz
 		 * XXX quickhack!!!
 		 */
-		if (ipforward_rt.ro_rt != NULL) {
+		if ((rt = rtcache_getrt(&ipforward_rt)) != NULL) {
 			struct secpolicy *sp;
 			int ipsecerror;
 			size_t ipsechdr;
@@ -1979,7 +1954,7 @@ ip_forward(struct mbuf *m, int srcrt)
 			    &ipsecerror);
 
 			if (sp == NULL)
-				destmtu = ipforward_rt.ro_rt->rt_ifp->if_mtu;
+				destmtu = rt->rt_ifp->if_mtu;
 			else {
 				/* count IPsec header size */
 				ipsechdr = ipsec4_hdrsiz(mcopy,
@@ -1994,11 +1969,11 @@ ip_forward(struct mbuf *m, int srcrt)
 				 && sp->req->sav != NULL
 				 && sp->req->sav->sah != NULL) {
 					ro = &sp->req->sav->sah->sa_route;
-					if (ro->ro_rt && ro->ro_rt->rt_ifp) {
+					if (rt && rt->rt_ifp) {
 						destmtu =
-						    ro->ro_rt->rt_rmx.rmx_mtu ?
-						    ro->ro_rt->rt_rmx.rmx_mtu :
-						    ro->ro_rt->rt_ifp->if_mtu;
+						    rt->rt_rmx.rmx_mtu ?
+						    rt->rt_rmx.rmx_mtu :
+						    rt->rt_ifp->if_mtu;
 						destmtu -= ipsechdr;
 					}
 				}