From cad2014b2749528351ec5180e88a5929efebbfc4 Mon Sep 17 00:00:00 2001 From: shin Date: Mon, 22 Nov 1999 02:45:11 +0000 Subject: KAME netinet6 basic part(no IPsec,no V6 Multicast Forwarding, no UDP/TCP for IPv6 yet) With this patch, you can assigne IPv6 addr automatically, and can reply to IPv6 ping. Reviewed by: freebsd-arch, cvs-committers Obtained from: KAME project --- sys/netinet6/in6_proto.c | 410 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 410 insertions(+) create mode 100644 sys/netinet6/in6_proto.c (limited to 'sys/netinet6/in6_proto.c') diff --git a/sys/netinet6/in6_proto.c b/sys/netinet6/in6_proto.c new file mode 100644 index 0000000..8189d01 --- /dev/null +++ b/sys/netinet6/in6_proto.c @@ -0,0 +1,410 @@ +/* + * 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. + * + * $FreeBSD$ + */ + +/* + * 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 "opt_inet.h" +#include "opt_ipsec.h" + +#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 + +#ifdef IPSEC +#include +#ifdef INET6 +#include +#endif /* INET6 */ +#include +#ifdef IPSEC_ESP +#include +#endif +#include +#endif /*IPSEC*/ + +#include + +/* #include "gif.h" */ +#if NGIF > 0 +#include +#endif + +#include + +#define offsetof(type, member) ((size_t)(&((type *)0)->member)) + +/* + * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. + */ + +extern struct domain inet6domain; +static struct pr_usrreqs nousrreqs; + +struct ip6protosw inet6sw[] = { +{ 0, &inet6domain, IPPROTO_IPV6, 0, + 0, 0, 0, 0, + 0, + ip6_init, 0, frag6_slowtimo, frag6_drain, + &nousrreqs, +}, +{ SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC | PR_ADDR, + rip6_input, rip6_output, 0, rip6_ctloutput, + 0, + 0, 0, 0, 0, + &rip6_usrreqs +}, +{ SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC | PR_ADDR, + icmp6_input, rip6_output, 0, rip6_ctloutput, + 0, + icmp6_init, icmp6_fasttimo, 0, 0, + &rip6_usrreqs +}, +{ SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, + dest6_input, 0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs +}, +{ SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, + route6_input, 0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs +}, +{ SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, + frag6_input, 0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs +}, +#ifdef IPSEC +{ SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, + ah6_input, 0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs, +}, +#ifdef IPSEC_ESP +{ SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, + esp6_input, 0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs, +}, +#endif +{ SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, + ipcomp6_input, 0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs, +}, +#endif /* IPSEC */ +#if NGIF > 0 +{ SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR, + in6_gif_input,0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs +}, +#ifdef INET6 +{ SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, + in6_gif_input,0, 0, 0, + 0, + 0, 0, 0, 0, + &nousrreqs +}, +#endif /* INET6 */ +#endif /* GIF */ +/* raw wildcard */ +{ SOCK_RAW, &inet6domain, 0, PR_ATOMIC | PR_ADDR, + rip6_input, rip6_output, 0, rip6_ctloutput, + 0, + 0, 0, 0, 0, + &rip6_usrreqs +}, +}; + +extern int in6_inithead __P((void **, int)); + +struct domain inet6domain = + { AF_INET6, "internet6", 0, 0, 0, + (struct protosw *)inet6sw, + (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0, + in6_inithead, + offsetof(struct sockaddr_in6, sin6_addr) << 3, + sizeof(struct sockaddr_in6) }; + +DOMAIN_SET(inet6); + +/* + * 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_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; +#if NGIF > 0 +int ip6_gif_hlim = GIF_HLIM; +#else +int ip6_gif_hlim = 0; +#endif +int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ +int ip6_rr_prune = 5; /* router renumbering prefix + * walk list every 5 sec. */ +int ip6_mapped_addr_on = 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 */ +u_int icmp6errratelim = 1000; /* 1000usec = 1msec */ + +/* UDP on IP6 parameters */ +int udp6_sendspace = 9216; /* really max datagram size */ +int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); + /* 40 1K datagrams */ + +/* + * sysctl related items. + */ +SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, + "Internet6 Family"); + +/* net.inet6 */ +SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); +SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); +SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); +SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); +#ifdef IPSEC +SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); +#endif /* IPSEC */ + +/* net.inet6.ip6 */ +static int +sysctl_ip6_forwarding SYSCTL_HANDLER_ARGS +{ + int error = 0; + int old_ip6_forwarding; + int changed; + + error = SYSCTL_OUT(req, arg1, sizeof(int)); + if (error || !req->newptr) + return (error); + old_ip6_forwarding = ip6_forwarding; + error = SYSCTL_IN(req, arg1, sizeof(int)); + if (error != 0) + return (error); + changed = (ip6_forwarding ? 1 : 0) ^ (old_ip6_forwarding ? 1 : 0); + if (changed == 0) + return (error); + if (ip6_forwarding != 0) { /* host becomes router */ + int s = splnet(); + struct nd_prefix *pr, *next; + + for (pr = nd_prefix.lh_first; pr; pr = next) { + next = pr->ndpr_next; + if (!IN6_IS_ADDR_UNSPECIFIED(&pr->ndpr_addr)) + in6_ifdel(pr->ndpr_ifp, &pr->ndpr_addr); + prelist_remove(pr); + } + splx(s); + } else { /* router becomes host */ + struct socket so; + + /* XXX: init dummy so */ + bzero(&so, sizeof(so)); + while(!LIST_EMPTY(&rr_prefix)) + delete_each_prefix(&so, LIST_FIRST(&rr_prefix), + PR_ORIG_KERNEL); + } + + return (error); +} + +SYSCTL_OID(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, + CTLTYPE_INT|CTLFLAG_RW, &ip6_forwarding, 0, sysctl_ip6_forwarding, + "I", ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, + redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, + hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, + maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, + accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, + keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, + log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, + hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, + dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, + auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, + defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, + gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, + use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, + rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); +SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAPPED_ADDR, + mapped_addr, CTLFLAG_RW, &ip6_mapped_addr_on, 0, ""); + +/* net.inet6.icmp6 */ +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, + rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, + redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); +SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, + &icmp6stat, icmp6stat, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRRATELIMIT, + errratelimit, CTLFLAG_RW, &icmp6errratelim, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, + nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, + nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, + nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, + nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, + nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); +SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PROXYALL, + nd6_proxyall, CTLFLAG_RW, &nd6_proxyall, 0, ""); -- cgit v1.1