/* $OpenBSD: in6_proto.c,v 1.38 2002/08/17 22:19:28 itojun Exp $ */ /* $KAME: in6_proto.c,v 1.66 2000/10/10 15:35:47 itojun Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* * Copyright (c) 1982, 1986, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)in_proto.c 8.1 (Berkeley) 6/10/93 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "gif.h" #if NGIF > 0 #include #endif /* * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. */ extern struct domain inet6domain; struct ip6protosw inet6sw[] = { { 0, &inet6domain, IPPROTO_IPV6, 0, 0, 0, 0, 0, 0, ip6_init, 0, frag6_slowtimo, frag6_drain, ip6_sysctl, }, { SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, udp6_input, 0, udp6_ctlinput, ip6_ctloutput, udp6_usrreq, 0, 0, 0, 0, udp_sysctl, }, { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_ABRTACPTDIS, tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput, tcp6_usrreq, #ifdef INET /* don't call initialization and timeout routines twice */ 0, 0, 0, tcp_drain, #else tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, #endif tcp_sysctl, }, { SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, rip6_input, rip6_output, rip6_ctlinput, rip6_ctloutput, rip6_usrreq, 0, 0, 0, 0, }, { SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR, icmp6_input, rip6_output, rip6_ctlinput, rip6_ctloutput, rip6_usrreq, icmp6_init, icmp6_fasttimo, 0, 0, icmp6_sysctl, }, { SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, dest6_input, 0, 0, 0, 0, 0, 0, 0, 0, }, { SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, route6_input, 0, 0, 0, 0, 0, 0, 0, 0, }, { SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, frag6_input, 0, 0, 0, 0, 0, 0, 0, 0, }, #ifdef IPSEC { SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, ah6_input, 0, 0, 0, 0, 0, 0, 0, 0, ah_sysctl, }, { SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, esp6_input, 0, 0, 0, 0, 0, 0, 0, 0, esp_sysctl, }, { SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, ipcomp6_input, 0, 0, 0, 0, 0, 0, 0, 0, ipcomp_sysctl, }, #endif /* IPSEC */ #if NGIF > 0 { SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, in6_gif_input, rip6_output, 0, rip6_ctloutput, rip6_usrreq, /* XXX */ 0, 0, 0, 0, }, #ifdef INET { SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR, in6_gif_input, rip6_output, 0, rip6_ctloutput, rip6_usrreq, /* XXX */ 0, 0, 0, 0, }, #endif /* INET */ #else /* NGIF */ { SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, ip4_input6, rip6_output, 0, rip6_ctloutput, rip6_usrreq, /* XXX */ 0, 0, 0, 0, ipip_sysctl }, #ifdef INET { SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR, ip4_input6, rip6_output, 0, rip6_ctloutput, rip6_usrreq, /* XXX */ 0, 0, 0, 0, }, #endif /* INET */ #endif /* GIF */ { SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR, pim6_input, rip6_output, 0, rip6_ctloutput, rip6_usrreq, 0, 0, 0, 0, }, /* raw wildcard */ { SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR, rip6_input, rip6_output, 0, rip6_ctloutput, rip6_usrreq, rip6_init, 0, 0, 0, }, }; struct domain inet6domain = { AF_INET6, "internet6", 0, 0, 0, (struct protosw *)inet6sw, (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0, rn_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, sizeof(struct sockaddr_in6), in6_domifattach, in6_domifdetach, }; /* * Internet configuration info */ #ifndef IPV6FORWARDING #ifdef GATEWAY6 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ #else #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ #endif /* GATEWAY6 */ #endif /* !IPV6FORWARDING */ #ifndef IPV6_SENDREDIRECTS #define IPV6_SENDREDIRECTS 1 #endif int ip6_forwarding = IPV6FORWARDING; /* act as router? */ int ip6_sendredirects = IPV6_SENDREDIRECTS; int ip6_defhlim = IPV6_DEFHLIM; int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ int ip6_maxfragpackets = 200; int ip6_maxfrags = 200; int ip6_log_interval = 5; int ip6_hdrnestlimit = 50; /* appropriate? */ int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ u_int32_t ip6_flow_seq; int ip6_auto_flowlabel = 1; int ip6_use_deprecated = 0; /* allow deprecated addr (RFC2462 5.5.4) */ int ip6_rr_prune = 5; /* router renumbering prefix * walk list every 5 sec. */ const int ip6_v6only = 1; u_int32_t ip6_id = 0UL; int ip6_keepfaith = 0; time_t ip6_log_time = (time_t)0L; /* icmp6 */ /* * BSDI4 defines these variables in in_proto.c... * XXX: what if we don't define INET? Should we define pmtu6_expire * or so? (jinmei@kame.net 19990310) */ int pmtu_expire = 60*10; int pmtu_probe = 60*2; /* raw IP6 parameters */ /* * Nominal space allocated to a raw ip socket. */ #define RIPV6SNDQ 8192 #define RIPV6RCVQ 8192 u_long rip6_sendspace = RIPV6SNDQ; u_long rip6_recvspace = RIPV6RCVQ; /* ICMPV6 parameters */ int icmp6_rediraccept = 1; /* accept and process redirects */ int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ struct timeval icmp6errratelim = { 0, 0 }; /* no ratelimit */ int icmp6errppslim = 100; /* 100pps */ int icmp6_nodeinfo = 1; /* enable/disable NI response */ /* UDP on IP6 parameters */ int udp6_sendspace = 9216; /* really max datagram size */ int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); /* 40 1K datagrams */