1/* $FreeBSD: head/sys/netinet6/ip6_input.c 111119 2003-02-19 05:47:46Z imp $ */
2/* $KAME: ip6_input.c,v 1.259 2002/01/21 04:58:09 jinmei Exp $ */
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions

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85#include <sys/kernel.h>
86#include <sys/syslog.h>
87
88#include <net/if.h>
89#include <net/if_types.h>
90#include <net/if_dl.h>
91#include <net/route.h>
92#include <net/netisr.h>
93#include <net/intrq.h>
94#ifdef PFIL_HOOKS
95#include <net/pfil.h>
96#endif
97
98#include <netinet/in.h>
99#include <netinet/in_systm.h>
100#ifdef INET
101#include <netinet/ip.h>

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127
128#include <netinet6/ip6protosw.h>
129
130#include <net/net_osdep.h>
131
132extern struct domain inet6domain;
133
134u_char ip6_protox[IPPROTO_MAX];
135static int ip6qmaxlen = IFQ_MAXLEN;
136struct in6_ifaddr *in6_ifaddr;
137
138extern struct callout in6_tmpaddrtimer_ch;
139
140int ip6_forward_srcrt; /* XXX */
141int ip6_sourcecheck; /* XXX */
142int ip6_sourcecheck_interval; /* XXX */

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181 ip6_protox[i] = pr - inet6sw;
182 for (pr = (struct ip6protosw *)inet6domain.dom_protosw;
183 pr < (struct ip6protosw *)inet6domain.dom_protoswNPROTOSW; pr++)
184 if (pr->pr_domain->dom_family == PF_INET6 &&
185 pr->pr_protocol && pr->pr_protocol != IPPROTO_RAW)
186 ip6_protox[pr->pr_protocol] = pr - inet6sw;
187 ip6intrq.ifq_maxlen = ip6qmaxlen;
188 mtx_init(&ip6intrq.ifq_mtx, "ip6_inq", NULL, MTX_DEF);
189 ip6intrq_present = 1;
190 register_netisr(NETISR_IPV6, ip6intr);
191 nd6_init();
192 frag6_init();
193 /*
194 * in many cases, random() here does NOT return random number
195 * as initialization during bootstrap time occur in fixed order.
196 */
197 microtime(&tv);
198 ip6_flow_seq = random() ^ tv.tv_usec;

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225 ip6_temp_regen_advance) * hz,
226 in6_tmpaddrtimer, NULL);
227}
228
229/* cheat */
230/* This must be after route_init(), which is now SI_ORDER_THIRD */
231SYSINIT(netinet6init2, SI_SUB_PROTO_DOMAIN, SI_ORDER_MIDDLE, ip6_init2, NULL);
232
233/*
234 * IP6 input interrupt handling. Just pass the packet to ip6_input.
235 */
236void
237ip6intr()
238{
239 int s;
240 struct mbuf *m;
241
242 for (;;) {
243 s = splimp();
244 IF_DEQUEUE(&ip6intrq, m);
245 splx(s);
246 if (m == 0)
247 return;
248 ip6_input(m);
249 }
250}
251
252extern struct route_in6 ip6_forward_rt;
253
254void
255ip6_input(m)
256 struct mbuf *m;
257{
258 struct ip6_hdr *ip6;
259 int off = sizeof(struct ip6_hdr), nest;

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