/* * Copyright (c) 2008-2023 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * 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 #include #include #if IPSEC #include #include #include #include #if IPSEC_ESP #include #include #endif #endif /*IPSEC*/ #include #include #include /* * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. */ extern struct domain inet6domain_s; struct domain *inet6domain = NULL; static struct pr_usrreqs nousrreqs; lck_mtx_t *inet6_domain_mutex; static void in6_dinit(struct domain *); static int rip6_pr_output(struct mbuf *, struct socket *, struct sockaddr_in6 *, struct mbuf *); struct ip6protosw inet6sw[] = { { .pr_type = 0, .pr_protocol = IPPROTO_IPV6, .pr_init = ip6_init, .pr_drain = ip6_drain, .pr_usrreqs = &nousrreqs, }, { .pr_type = SOCK_DGRAM, .pr_protocol = IPPROTO_UDP, .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK | PR_PCBLOCK | PR_EVCONNINFO | PR_PRECONN_WRITE, .pr_input = udp6_input, .pr_ctlinput = udp6_ctlinput, .pr_ctloutput = udp_ctloutput, #if !INET /* don't call initialization twice */ .pr_init = udp_init, #endif /* !INET */ .pr_usrreqs = &udp6_usrreqs, .pr_lock = udp_lock, .pr_unlock = udp_unlock, .pr_getlock = udp_getlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, { .pr_type = SOCK_STREAM, .pr_protocol = IPPROTO_TCP, .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD | PR_PCBLOCK | PR_PROTOLOCK | PR_DISPOSE | PR_EVCONNINFO | PR_PRECONN_WRITE | PR_DATA_IDEMPOTENT, .pr_input = tcp6_input, .pr_ctlinput = tcp6_ctlinput, .pr_ctloutput = tcp_ctloutput, #if !INET /* don't call initialization and timeout routines twice */ .pr_init = tcp_init, #endif /* !INET */ .pr_drain = tcp_drain, .pr_usrreqs = &tcp6_usrreqs, .pr_lock = tcp_lock, .pr_unlock = tcp_unlock, .pr_getlock = tcp_getlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_RAW, .pr_flags = PR_ATOMIC | PR_ADDR, .pr_input = rip6_input, .pr_output = rip6_pr_output, .pr_ctlinput = rip6_ctlinput, .pr_ctloutput = rip6_ctloutput, #if !INET /* don't call initialization and timeout routines twice */ .pr_init = rip_init, #endif /* !INET */ .pr_usrreqs = &rip6_usrreqs, .pr_unlock = rip_unlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_ICMPV6, .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR, .pr_input = icmp6_input, .pr_output = rip6_pr_output, .pr_ctlinput = rip6_ctlinput, .pr_ctloutput = rip6_ctloutput, .pr_init = icmp6_init, .pr_usrreqs = &rip6_usrreqs, .pr_unlock = rip_unlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, { .pr_type = SOCK_DGRAM, .pr_protocol = IPPROTO_ICMPV6, .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR, .pr_input = icmp6_input, .pr_output = rip6_pr_output, .pr_ctlinput = rip6_ctlinput, .pr_ctloutput = icmp6_dgram_ctloutput, .pr_init = icmp6_init, .pr_usrreqs = &icmp6_dgram_usrreqs, .pr_unlock = rip_unlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_DSTOPTS, .pr_flags = PR_ATOMIC | PR_ADDR, .pr_input = dest6_input, .pr_usrreqs = &nousrreqs, }, { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_ROUTING, .pr_flags = PR_ATOMIC | PR_ADDR, .pr_input = route6_input, .pr_usrreqs = &nousrreqs, }, { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_FRAGMENT, .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK, .pr_input = frag6_input, .pr_usrreqs = &nousrreqs, }, #if IPSEC { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_AH, .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK, .pr_input = ah6_input, .pr_usrreqs = &nousrreqs, }, #if IPSEC_ESP { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_ESP, .pr_flags = PR_ATOMIC | PR_ADDR | PR_PROTOLOCK, .pr_input = esp6_input, .pr_ctlinput = esp6_ctlinput, .pr_usrreqs = &nousrreqs, }, #endif /* IPSEC_ESP */ #endif /* IPSEC */ #if INET { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_IPV4, .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR, .pr_input = encap6_input, .pr_output = rip6_pr_output, .pr_ctloutput = rip6_ctloutput, .pr_usrreqs = &rip6_usrreqs, .pr_unlock = rip_unlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, #endif /*INET*/ { .pr_type = SOCK_RAW, .pr_protocol = IPPROTO_IPV6, .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR, .pr_input = encap6_input, .pr_output = rip6_pr_output, .pr_ctloutput = rip6_ctloutput, .pr_usrreqs = &rip6_usrreqs, .pr_unlock = rip_unlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, /* raw wildcard */ { .pr_type = SOCK_RAW, .pr_protocol = 0, .pr_flags = PR_ATOMIC | PR_ADDR | PR_LASTHDR, .pr_input = rip6_input, .pr_output = rip6_pr_output, .pr_ctloutput = rip6_ctloutput, .pr_usrreqs = &rip6_usrreqs, .pr_unlock = rip_unlock, .pr_update_last_owner = inp_update_last_owner, .pr_copy_last_owner = inp_copy_last_owner, }, }; int in6_proto_count = (sizeof(inet6sw) / sizeof(struct ip6protosw)); struct domain inet6domain_s = { .dom_family = PF_INET6, .dom_flags = DOM_REENTRANT, .dom_name = "internet6", .dom_init = in6_dinit, .dom_rtattach = in6_inithead, .dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3, .dom_maxrtkey = sizeof(struct sockaddr_in6), .dom_protohdrlen = sizeof(struct sockaddr_in6), }; /* Initialize the PF_INET6 domain, and add in the pre-defined protos */ void in6_dinit(struct domain *dp) { struct ip6protosw *pr; int i; VERIFY(!(dp->dom_flags & DOM_INITIALIZED)); VERIFY(inet6domain == NULL); inet6domain = dp; _CASSERT(sizeof(struct protosw) == sizeof(struct ip6protosw)); _CASSERT(offsetof(struct ip6protosw, pr_entry) == offsetof(struct protosw, pr_entry)); _CASSERT(offsetof(struct ip6protosw, pr_domain) == offsetof(struct protosw, pr_domain)); _CASSERT(offsetof(struct ip6protosw, pr_protosw) == offsetof(struct protosw, pr_protosw)); _CASSERT(offsetof(struct ip6protosw, pr_type) == offsetof(struct protosw, pr_type)); _CASSERT(offsetof(struct ip6protosw, pr_protocol) == offsetof(struct protosw, pr_protocol)); _CASSERT(offsetof(struct ip6protosw, pr_flags) == offsetof(struct protosw, pr_flags)); _CASSERT(offsetof(struct ip6protosw, pr_input) == offsetof(struct protosw, pr_input)); _CASSERT(offsetof(struct ip6protosw, pr_output) == offsetof(struct protosw, pr_output)); _CASSERT(offsetof(struct ip6protosw, pr_ctlinput) == offsetof(struct protosw, pr_ctlinput)); _CASSERT(offsetof(struct ip6protosw, pr_ctloutput) == offsetof(struct protosw, pr_ctloutput)); _CASSERT(offsetof(struct ip6protosw, pr_usrreqs) == offsetof(struct protosw, pr_usrreqs)); _CASSERT(offsetof(struct ip6protosw, pr_init) == offsetof(struct protosw, pr_init)); _CASSERT(offsetof(struct ip6protosw, pr_drain) == offsetof(struct protosw, pr_drain)); _CASSERT(offsetof(struct ip6protosw, pr_sysctl) == offsetof(struct protosw, pr_sysctl)); _CASSERT(offsetof(struct ip6protosw, pr_lock) == offsetof(struct protosw, pr_lock)); _CASSERT(offsetof(struct ip6protosw, pr_unlock) == offsetof(struct protosw, pr_unlock)); _CASSERT(offsetof(struct ip6protosw, pr_getlock) == offsetof(struct protosw, pr_getlock)); _CASSERT(offsetof(struct ip6protosw, pr_filter_head) == offsetof(struct protosw, pr_filter_head)); _CASSERT(offsetof(struct ip6protosw, pr_old) == offsetof(struct protosw, pr_old)); _CASSERT(offsetof(struct ip6protosw, pr_update_last_owner) == offsetof(struct protosw, pr_update_last_owner)); _CASSERT(offsetof(struct ip6protosw, pr_copy_last_owner) == offsetof(struct protosw, pr_copy_last_owner)); /* * Attach first, then initialize. ip6_init() needs raw IP6 handler. */ for (i = 0, pr = &inet6sw[0]; i < in6_proto_count; i++, pr++) { net_add_proto((struct protosw *)pr, dp, 0); } for (i = 0, pr = &inet6sw[0]; i < in6_proto_count; i++, pr++) { net_init_proto((struct protosw *)pr, dp); } inet6_domain_mutex = dp->dom_mtx; } static int rip6_pr_output(struct mbuf *m, struct socket *so, struct sockaddr_in6 *sin6, struct mbuf *m1) { #pragma unused(m, so, sin6, m1) panic("%s", __func__); /* NOTREACHED */ return 0; } /* * Internet configuration info */ #ifndef IPV6FORWARDING #if 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 = 1; /* deprecated */ int ip6_log_interval = 5; int ip6_hdrnestlimit = 15; /* How many header options will we process? */ int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ int ip6_auto_flowlabel = 1; int ip6_gif_hlim = 0; int ip6_use_deprecated = 1; /* allow deprecated addr [RFC 4862, 5.5.4] */ int ip6_rr_prune = 5; /* router renumbering prefix * walk list every 5 sec. */ int ip6_mcast_pmtu = 0; /* enable pMTU discovery for multicast? */ int ip6_v6only = 0; /* Mapped addresses off by default - Radar 3347718 -- REVISITING FOR 10.7 -- TESTING WITH MAPPED@ OFF */ int ip6_neighborgcthresh = 1024; /* Threshold # of NDP entries for GC */ int ip6_maxifprefixes = 16; /* Max acceptable prefixes via RA per IF */ int ip6_maxifdefrouters = 64; /* Max acceptable default or RTI routers via RA */ int ip6_maxdynroutes = 1024; /* Max # of routes created via redirect */ int ip6_only_allow_rfc4193_prefix = 0; /* Only allow RFC4193 style Unique Local IPv6 Unicast prefixes */ static int ip6_keepfaith = 0; uint64_t ip6_log_time = 0; int nd6_onlink_ns_rfc4861 = 0; /* allow 'on-link' nd6 NS (as in RFC 4861) */ /* 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_int32_t rip6_sendspace = RIPV6SNDQ; u_int32_t rip6_recvspace = RIPV6RCVQ; /* ICMPV6 parameters */ int icmp6_rediraccept = 1; /* accept and process redirects */ int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ uint32_t icmp6errppslim = 500; /* 500 packets per second */ uint32_t icmp6errppslim_random_incr = 500; /* We further randomize icmp6errppslim * with this during icmpv6 initialization*/ int icmp6rappslim = 10; /* 10 packets per second */ int icmp6_nodeinfo = 0; /* 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 */ /* * sysctl related items. */ SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "Internet6 Family"); /* net.inet6 */ SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IP6"); SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "ICMP6"); SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "UDP6"); SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "TCP6"); #if IPSEC SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "IPSEC6"); #endif /* IPSEC */ /* net.inet6.ip6 */ static int sysctl_ip6_temppltime SYSCTL_HANDLER_ARGS { #pragma unused(oidp, arg2) int error = 0; int value = 0; error = SYSCTL_OUT(req, arg1, sizeof(int)); if (error || !req->newptr) { return error; } error = SYSCTL_IN(req, &value, sizeof(value)); if (error) { return error; } if (value > ND6_MAX_LIFETIME || value < ip6_desync_factor + ip6_temp_regen_advance) { return EINVAL; } ip6_temp_preferred_lifetime = value; return error; } static int sysctl_ip6_tempvltime SYSCTL_HANDLER_ARGS { #pragma unused(oidp, arg2) int error = 0; uint32_t value = 0; error = SYSCTL_OUT(req, arg1, sizeof(uint32_t)); if (error || !req->newptr) { return error; } error = SYSCTL_IN(req, &value, sizeof(value)); if (error) { return error; } if (value > ND6_MAX_LIFETIME || value < ip6_temp_preferred_lifetime) { return EINVAL; } ip6_temp_valid_lifetime = value; return error; } static int sysctl_ip6_cga_conflict_retries SYSCTL_HANDLER_ARGS { #pragma unused(oidp, arg2) int error = 0; int value = 0; error = SYSCTL_OUT(req, arg1, sizeof(int)); if (error || !req->newptr) { return error; } error = SYSCTL_IN(req, &value, sizeof(value)); if (error) { return error; } if (value > IPV6_CGA_CONFLICT_RETRIES_MAX || value < 0) { return EINVAL; } ip6_cga_conflict_retries = value; return 0; } static int ip6_getstat SYSCTL_HANDLER_ARGS { #pragma unused(oidp, arg1, arg2) if (req->oldptr == USER_ADDR_NULL) { req->oldlen = (size_t)sizeof(struct ip6stat); } return SYSCTL_OUT(req, &ip6stat, MIN(sizeof(ip6stat), req->oldlen)); } SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_sendredirects, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_defhlim, 0, ""); SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED, 0, 0, ip6_getstat, "S,ip6stat", ""); #if (DEVELOPMENT || DEBUG) SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_accept_rtadv, 0, ""); #else SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv, CTLFLAG_RD | CTLFLAG_LOCKED, &ip6_accept_rtadv, 0, ""); #endif /* (DEVELOPMENT || DEBUG) */ SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, keepfaith, CTLFLAG_RD | CTLFLAG_LOCKED, &ip6_keepfaith, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_log_interval, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_hdrnestlimit, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_dad_count, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_auto_flowlabel, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_defmcasthlim, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, gifhlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_gif_hlim, 0, ""); SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version, CTLFLAG_RD | CTLFLAG_LOCKED, (void *)((uintptr_t)(__KAME_VERSION)), 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_deprecated, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_rr_prune, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_tempaddr, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ULA_USETEMPADDR, ula_use_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_ula_use_tempaddr, 0, ""); SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_temp_preferred_lifetime, 0, sysctl_ip6_temppltime, "I", ""); SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_temp_valid_lifetime, 0, sysctl_ip6_tempvltime, "I", ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_v6only, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_auto_linklocal, 0, ""); SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD | CTLFLAG_LOCKED, &rip6stat, rip6stat, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_prefer_tempaddr, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_defzone, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_mcast_pmtu, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_NEIGHBORGCTHRESH, neighborgcthresh, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_neighborgcthresh, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXIFPREFIXES, maxifprefixes, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_maxifprefixes, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXIFDEFROUTERS, maxifdefrouters, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_maxifdefrouters, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXDYNROUTES, maxdynroutes, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_maxdynroutes, 0, ""); SYSCTL_INT(_net_inet6_ip6, OID_AUTO, only_allow_rfc4193_prefixes, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_only_allow_rfc4193_prefix, 0, ""); SYSCTL_INT(_net_inet6_ip6, OID_AUTO, clat_debug, CTLFLAG_RW | CTLFLAG_LOCKED, &clat_debug, 0, ""); SYSCTL_PROC(_net_inet6_ip6, OID_AUTO, cga_conflict_retries, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_cga_conflict_retries, 0, sysctl_ip6_cga_conflict_retries, "IU", ""); static int sysctl_ip6_forwarding SYSCTL_HANDLER_ARGS; SYSCTL_PROC(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_forwarding, 0, sysctl_ip6_forwarding, "I", ""); static int sysctl_ip6_forwarding SYSCTL_HANDLER_ARGS { #pragma unused(arg1, arg2) int error, i; char proc_name_string[MAXCOMLEN + 1]; proc_name(proc_pid(current_proc()), proc_name_string, sizeof(proc_name_string)); i = ip6_forwarding; os_log(OS_LOG_DEFAULT, "%s:%s entry: ip6_forwarding is %d", proc_name_string, __func__, ip6_forwarding); error = sysctl_handle_int(oidp, &i, 0, req); if (error || req->newptr == USER_ADDR_NULL) { goto done; } /* impose bounds */ if (i < 0) { error = EINVAL; goto done; } if (i > 0) { i = 1; } ip6_forwarding = i; done: os_log(OS_LOG_DEFAULT, "%s:%s return: ip6_forwarding is %d " "and error is %d", proc_name_string, __func__, ip6_forwarding, error); return error; } /* * One single sysctl to set v6 stack profile for IPv6 compliance testing. * A lot of compliance test suites are not aware of other enhancements in IPv6 * protocol and expect some arguably obsolete behavior. */ static int v6_compliance_profile; static int sysctl_set_v6_compliance_profile SYSCTL_HANDLER_ARGS { #pragma unused(oidp, arg2) int changed, error; int value = *(int *) arg1; error = sysctl_io_number(req, value, sizeof(value), &value, &changed); if (error || !changed) { return error; } if (value != 0 && value != 1) { return ERANGE; } if (value == 1) { ip6_use_tempaddr = 0; dad_enhanced = 0; icmp6_rediraccept = 1; nd6_optimistic_dad = 0; nd6_process_rti = ND6_PROCESS_RTI_ENABLE; } else { ip6_use_tempaddr = IP6_USE_TMPADDR_DEFAULT; dad_enhanced = ND6_DAD_ENHANCED_DEFAULT; icmp6_rediraccept = ICMP6_REDIRACCEPT_DEFAULT; nd6_optimistic_dad = ND6_OPTIMISTIC_DAD_DEFAULT; nd6_process_rti = ND6_PROCESS_RTI_DEFAULT; } v6_compliance_profile = value; return 0; } SYSCTL_PROC(_net_inet6_ip6, OID_AUTO, compliance_profile, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &v6_compliance_profile, 0, sysctl_set_v6_compliance_profile, "I", "set IPv6 compliance profile"); /* net.inet6.icmp6 */ SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_rediraccept, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_redirtimeout, 0, ""); SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD | CTLFLAG_LOCKED, &icmp6stat, icmp6stat, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_prune, 0, ""); SYSCTL_INT(_net_inet6_icmp6, OID_AUTO, nd6_prune_lazy, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_prune_lazy, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_delay, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_umaxtries, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_mmaxtries, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_useloopback, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ACCEPT_6TO4, nd6_accept_6to4, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_accept_6to4, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_nodeinfo, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6errppslim, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT_RANDOM_INCR, errppslimit_random_incr, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6errppslim_random_incr, 0, ""); SYSCTL_INT(_net_inet6_icmp6, OID_AUTO, rappslimit, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6rappslim, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_debug, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861, nd6_onlink_ns_rfc4861, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_onlink_ns_rfc4861, 0, "Accept 'on-link' nd6 NS in compliance with RFC 4861."); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_OPTIMISTIC_DAD, nd6_optimistic_dad, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_optimistic_dad, 0, "");