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/netinet6/ip6_input.c,v
rcsdiff: /ftp/cvs/cvsroot/src/sys/netinet6/ip6_input.c,v: warning: Unknown phrases like `commitid ...;' are present.
retrieving revision 1.129.4.2
retrieving revision 1.133.2.2
diff -u -p -r1.129.4.2 -r1.133.2.2
--- src/sys/netinet6/ip6_input.c	2011/06/12 00:24:30	1.129.4.2
+++ src/sys/netinet6/ip6_input.c	2012/04/05 21:33:46	1.133.2.2
@@ -1,4 +1,4 @@
-/*	$NetBSD: ip6_input.c,v 1.129.4.2 2011/06/12 00:24:30 rmind Exp $	*/
+/*	$NetBSD: ip6_input.c,v 1.133.2.2 2012/04/05 21:33:46 mrg Exp $	*/
 /*	$KAME: ip6_input.c,v 1.188 2001/03/29 05:34:31 itojun Exp $	*/
 
 /*
@@ -62,7 +62,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip6_input.c,v 1.129.4.2 2011/06/12 00:24:30 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip6_input.c,v 1.133.2.2 2012/04/05 21:33:46 mrg Exp $");
 
 #include "opt_gateway.h"
 #include "opt_inet.h"
@@ -85,6 +85,7 @@ __KERNEL_RCSID(0, "$NetBSD: ip6_input.c,
 #include <sys/syslog.h>
 #include <sys/proc.h>
 #include <sys/sysctl.h>
+#include <sys/cprng.h>
 
 #include <net/if.h>
 #include <net/if_types.h>
@@ -111,11 +112,6 @@ __KERNEL_RCSID(0, "$NetBSD: ip6_input.c,
 #include <netinet6/in6_ifattach.h>
 #include <netinet6/nd6.h>
 
-#ifdef IPSEC
-#include <netinet6/ipsec.h>
-#include <netinet6/ipsec_private.h>
-#endif
-
 #ifdef FAST_IPSEC
 #include <netipsec/ipsec.h>
 #include <netipsec/ipsec6.h>
@@ -160,7 +156,8 @@ percpu_t *ip6stat_percpu;
 static void ip6_init2(void *);
 static struct m_tag *ip6_setdstifaddr(struct mbuf *, const struct in6_ifaddr *);
 
-static int ip6_hopopts_input(u_int32_t *, u_int32_t *, struct mbuf **, int *);
+static int ip6_process_hopopts(struct mbuf *, u_int8_t *, int, u_int32_t *,
+	u_int32_t *);
 static struct mbuf *ip6_pullexthdr(struct mbuf *, size_t, int);
 static void sysctl_net_inet6_ip6_setup(struct sysctllog **);
 
@@ -190,9 +187,9 @@ ip6_init(void)
 	addrsel_policy_init();
 	nd6_init();
 	frag6_init();
-	ip6_desync_factor = arc4random() % MAX_TEMP_DESYNC_FACTOR;
+	ip6_desync_factor = cprng_fast32() % MAX_TEMP_DESYNC_FACTOR;
 
-	ip6_init2((void *)0);
+	ip6_init2(NULL);
 #ifdef GATEWAY
 	ip6flow_init(ip6_hashsize);
 #endif
@@ -278,15 +275,6 @@ ip6_input(struct mbuf *m)
 	int s, error;
 #endif
 
-#ifdef IPSEC
-	/*
-	 * should the inner packet be considered authentic?
-	 * see comment in ah4_input().
-	 */
-	m->m_flags &= ~M_AUTHIPHDR;
-	m->m_flags &= ~M_AUTHIPDGM;
-#endif
-
 	/*
 	 * make sure we don't have onion peering information into m_tag.
 	 */
@@ -350,16 +338,11 @@ ip6_input(struct mbuf *m)
 		goto bad;
 	}
 
-#if defined(IPSEC)
-	/* IPv6 fast forwarding is not compatible with IPsec. */
-	m->m_flags &= ~M_CANFASTFWD;
-#else
 	/*
 	 * Assume that we can create a fast-forward IP flow entry
 	 * based on this packet.
 	 */
 	m->m_flags |= M_CANFASTFWD;
-#endif
 
 #ifdef PFIL_HOOKS
 	/*
@@ -373,9 +356,7 @@ ip6_input(struct mbuf *m)
 	 * let ipfilter look at packet on the wire,
 	 * not the decapsulated packet.
 	 */
-#ifdef IPSEC
-	if (!ipsec_getnhist(m))
-#elif defined(FAST_IPSEC)
+#if defined(FAST_IPSEC)
 	if (!ipsec_indone(m))
 #else
 	if (1)
@@ -784,18 +765,6 @@ ip6_input(struct mbuf *m)
 			}
 		}
 
-#ifdef IPSEC
-		/*
-		 * enforce IPsec policy checking if we are seeing last header.
-		 * note that we do not visit this with protocols with pcb layer
-		 * code - like udp/tcp/raw ip.
-		 */
-		if ((inet6sw[ip6_protox[nxt]].pr_flags & PR_LASTHDR) != 0 &&
-		    ipsec6_in_reject(m, NULL)) {
-			IPSEC6_STATINC(IPSEC_STAT_IN_POLVIO);
-			goto bad;
-		}
-#endif
 #ifdef FAST_IPSEC
 	/*
 	 * enforce IPsec policy checking if we are seeing last header.
@@ -881,7 +850,7 @@ ip6_getdstifaddr(struct mbuf *m)
  *
  * rtalertp - XXX: should be stored more smart way
  */
-static int
+int
 ip6_hopopts_input(u_int32_t *plenp, u_int32_t *rtalertp, 
 	struct mbuf **mp, int *offp)
 {
@@ -926,7 +895,7 @@ ip6_hopopts_input(u_int32_t *plenp, u_in
  * (RFC2460 p7), opthead is pointer into data content in m, and opthead to
  * opthead + hbhlen is located in continuous memory region.
  */
-int
+static int
 ip6_process_hopopts(struct mbuf *m, u_int8_t *opthead, int hbhlen, 
 	u_int32_t *rtalertp, u_int32_t *plenp)
 {