X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..3e170ce000f1506b7b5d2c5c7faec85ceabb573d:/bsd/netinet6/in6_proto.c diff --git a/bsd/netinet6/in6_proto.c b/bsd/netinet6/in6_proto.c index 3fafd2426..3aedbea2f 100644 --- a/bsd/netinet6/in6_proto.c +++ b/bsd/netinet6/in6_proto.c @@ -1,5 +1,30 @@ -/* $FreeBSD: src/sys/netinet6/in6_proto.c,v 1.6.2.7 2001/07/24 19:10:18 brooks Exp $ */ -/* $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $ */ +/* + * Copyright (c) 2008-2015 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. @@ -88,6 +113,7 @@ #include #include #include +#include #include #include @@ -98,9 +124,8 @@ #include #include #include -#include #include -#include +#include #if IPSEC #include @@ -131,153 +156,265 @@ * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. */ -extern struct domain inet6domain; -static struct pr_usrreqs nousrreqs; +extern struct domain inet6domain_s; +struct domain *inet6domain = NULL; -#define PR_LISTEN 0 -#define PR_ABRTACPTDIS 0 +static struct pr_usrreqs nousrreqs; +lck_mtx_t *inet6_domain_mutex; -extern struct domain inet6domain; -extern int in6_inithead __P((void **, int)); -void in6_dinit(void); +static void in6_dinit(struct domain *); +static int rip6_pr_output(struct mbuf *, struct socket *, + struct sockaddr_in6 *, struct mbuf *); struct ip6protosw inet6sw[] = { -{ 0, &inet6domain, IPPROTO_IPV6, 0, - 0, 0, 0, 0, - 0, - ip6_init, 0, frag6_slowtimo, frag6_drain, - 0, &nousrreqs +{ + .pr_type = 0, + .pr_protocol = IPPROTO_IPV6, + .pr_init = ip6_init, + .pr_drain = ip6_drain, + .pr_usrreqs = &nousrreqs, }, -{ SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, - udp6_input, 0, udp6_ctlinput, ip6_ctloutput, - 0, - 0, 0, 0, 0, - 0, &udp6_usrreqs +{ + .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 = ip6_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, }, -{ SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN, - tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput, - 0, -#if INET /* don't call initialization and timeout routines twice */ - 0, 0, 0, tcp_drain, -#else - tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, -#endif - 0, &tcp6_usrreqs, +{ + .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_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, }, -{ SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, - rip6_input, rip6_output, rip6_ctlinput, rip6_ctloutput, - 0, - 0, 0, 0, 0, - 0, &rip6_usrreqs +{ + .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, }, -{ SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, - icmp6_input, rip6_output, rip6_ctlinput, rip6_ctloutput, - 0, - icmp6_init, icmp6_fasttimo, 0, 0, - 0, &rip6_usrreqs +{ + .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, }, -{ SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, - dest6_input, 0, 0, 0, - 0, - 0, 0, 0, 0, - 0, &nousrreqs +{ + .pr_type = SOCK_RAW, + .pr_protocol = IPPROTO_DSTOPTS, + .pr_flags = PR_ATOMIC|PR_ADDR, + .pr_input = dest6_input, + .pr_usrreqs = &nousrreqs, }, -{ SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, - route6_input, 0, 0, 0, - 0, - 0, 0, 0, 0, - 0, &nousrreqs +{ + .pr_type = SOCK_RAW, + .pr_protocol = IPPROTO_ROUTING, + .pr_flags = PR_ATOMIC|PR_ADDR, + .pr_input = route6_input, + .pr_usrreqs = &nousrreqs, }, -{ SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, - frag6_input, 0, 0, 0, - 0, - 0, 0, 0, 0, - 0, &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 -{ SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, - ah6_input, 0, 0, 0, - 0, - 0, 0, 0, 0, - 0, &nousrreqs +{ + .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 -{ SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, - esp6_input, 0, - esp6_ctlinput, - 0, - 0, - 0, 0, 0, 0, - 0, &nousrreqs +{ + .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 -{ SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, - ipcomp6_input, 0, 0, 0, - 0, - 0, 0, 0, 0, - 0, &nousrreqs +#endif /* IPSEC_ESP */ +{ + .pr_type = SOCK_RAW, + .pr_protocol = IPPROTO_IPCOMP, + .pr_flags = PR_ATOMIC|PR_ADDR|PR_PROTOLOCK, + .pr_input = ipcomp6_input, + .pr_usrreqs = &nousrreqs, }, #endif /* IPSEC */ #if INET -{ SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, - encap6_input, rip6_output, 0, rip6_ctloutput, - 0, - encap_init, 0, 0, 0, - 0, &rip6_usrreqs +{ + .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_init = encap6_init, + .pr_usrreqs = &rip6_usrreqs, + .pr_unlock = rip_unlock, }, #endif /*INET*/ -{ SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, - encap6_input, rip6_output, 0, rip6_ctloutput, - 0, - encap_init, 0, 0, 0, - 0, &rip6_usrreqs -}, -{ SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, - pim6_input, rip6_output, 0, rip6_ctloutput, - 0, - 0, 0, 0, 0, - 0, &rip6_usrreqs +{ + .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_init = encap6_init, + .pr_usrreqs = &rip6_usrreqs, + .pr_unlock = rip_unlock, }, /* raw wildcard */ -{ SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR, - rip6_input, rip6_output, 0, rip6_ctloutput, - 0, - 0, 0, 0, 0, - 0, &rip6_usrreqs +{ + .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, }, }; - int in6_proto_count = (sizeof (inet6sw) / sizeof (struct ip6protosw)); -struct domain inet6domain = - { AF_INET6, "internet6", in6_dinit, 0, 0, - inet6sw, 0, - in6_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, sizeof(struct sockaddr_in6) , - sizeof(struct sockaddr_in6), 0 - }; - -DOMAIN_SET(inet6); +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() +in6_dinit(struct domain *dp) { - register int i; - register struct ip6protosw *pr; - register struct domain *dp; - static inet6domain_initted = 0; - - if (!inet6domain_initted) { - dp = &inet6domain; - - for (i=0, pr = &inet6sw[0]; idom_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)); + + /* + * 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\n", __func__); + /* NOTREACHED */ + return (0); +} /* * Internet configuration info @@ -298,26 +435,27 @@ 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_accept_rtadv = 1; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ -int ip6_maxfragpackets; /* initialized in frag6.c:frag6_init() */ +int ip6_accept_rtadv = 1; /* deprecated */ int ip6_log_interval = 5; -int ip6_hdrnestlimit = 50; /* appropriate? */ +int ip6_hdrnestlimit = 15; /* How many header options will we process? */ int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ -u_int32_t ip6_flow_seq; int ip6_auto_flowlabel = 1; int ip6_gif_hlim = 0; -int ip6_use_deprecated = 1; /* allow deprecated addr (RFC2462 5.5.4) */ +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_v6only = 0; -#ifdef __APPLE__ -int ip6_auto_on = 1; /* Start IPv6 per interface triggered by IPv4 address assignment */ -#endif +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 */ -u_int32_t ip6_id = 0UL; -int ip6_keepfaith = 0; -time_t ip6_log_time = (time_t)0L; +int ip6_neighborgcthresh = 1024; /* Threshold # of NDP entries for GC */ +int ip6_maxifprefixes = 16; /* Max acceptable prefixes via RA per IF */ +int ip6_maxifdefrouters = 16; /* Max acceptable def 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 */ /* @@ -335,14 +473,15 @@ int pmtu_probe = 60*2; #define RIPV6SNDQ 8192 #define RIPV6RCVQ 8192 -u_long rip6_sendspace = RIPV6SNDQ; -u_long rip6_recvspace = RIPV6RCVQ; +u_int32_t rip6_sendspace = RIPV6SNDQ; +u_int32_t rip6_recvspace = RIPV6RCVQ; /* ICMPV6 parameters */ -int icmp6_rediraccept = 1; /* accept and process redirects */ +int icmp6_rediraccept = 0; /* accept and process redirects */ int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ -int icmp6errppslim = 100; /* 100pps */ -int icmp6_nodeinfo = 1; /* enable/disable NI response */ +int icmp6errppslim = 500; /* 500 packets per second */ +int icmp6rappslim = 10; /* 10 packets per second */ +int icmp6_nodeinfo = 3; /* enable/disable NI response */ /* UDP on IP6 parameters */ int udp6_sendspace = 9216; /* really max datagram size */ @@ -352,22 +491,28 @@ int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); /* * sysctl related items. */ -SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, - "Internet6 Family"); +SYSCTL_NODE(_net, PF_INET6, inet6, + CTLFLAG_RW | CTLFLAG_LOCKED, 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"); +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, 0, "IPSEC6"); +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 old; @@ -376,17 +521,19 @@ sysctl_ip6_temppltime SYSCTL_HANDLER_ARGS return (error); old = ip6_temp_preferred_lifetime; error = SYSCTL_IN(req, arg1, sizeof(int)); - if (ip6_temp_preferred_lifetime < + if (ip6_temp_preferred_lifetime > ND6_MAX_LIFETIME || + ip6_temp_preferred_lifetime < ip6_desync_factor + ip6_temp_regen_advance) { ip6_temp_preferred_lifetime = old; - return(EINVAL); + return (EINVAL); } - return(error); + return (error); } static int sysctl_ip6_tempvltime SYSCTL_HANDLER_ARGS { +#pragma unused(oidp, arg2) int error = 0; int old; @@ -395,86 +542,119 @@ sysctl_ip6_tempvltime SYSCTL_HANDLER_ARGS return (error); old = ip6_temp_valid_lifetime; error = SYSCTL_IN(req, arg1, sizeof(int)); - if (ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { - ip6_temp_preferred_lifetime = old; - return(EINVAL); + if (ip6_temp_valid_lifetime > ND6_MAX_LIFETIME || + ip6_temp_valid_lifetime < ip6_temp_preferred_lifetime) { + ip6_temp_valid_lifetime = old; + return (EINVAL); } - return(error); + return (error); +} + +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_FORWARDING, - forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); + forwarding, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_forwarding, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, - redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); + redirect, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_sendredirects, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, - hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); -SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD, - &ip6stat, ip6stat, ""); -SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, - maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); + 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", ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, - accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); + accept_rtadv, CTLFLAG_RD | CTLFLAG_LOCKED, + &ip6_accept_rtadv, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, - keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); + keepfaith, CTLFLAG_RD | CTLFLAG_LOCKED, &ip6_keepfaith, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, - log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); + log_interval, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_log_interval, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, - hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); + hdrnestlimit, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_hdrnestlimit, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, - dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); + dad_count, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_dad_count, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, - auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); + auto_flowlabel, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_auto_flowlabel, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, - defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); + defmcasthlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_defmcasthlim, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, - gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); + gifhlim, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_gif_hlim, 0, ""); SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, - kame_version, CTLFLAG_RD, __KAME_VERSION, 0, ""); + kame_version, CTLFLAG_RD | CTLFLAG_LOCKED, (void *)((uintptr_t)(__KAME_VERSION)), 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, - use_deprecated, CTLFLAG_RW, &ip6_use_deprecated, 0, ""); + use_deprecated, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_deprecated, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, - rr_prune, CTLFLAG_RW, &ip6_rr_prune, 0, ""); + rr_prune, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_rr_prune, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, - use_tempaddr, CTLFLAG_RW, &ip6_use_tempaddr, 0, ""); + use_tempaddr, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_use_tempaddr, 0, ""); SYSCTL_OID(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime, - CTLTYPE_INT|CTLFLAG_RW, &ip6_temp_preferred_lifetime, 0, + 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, &ip6_temp_valid_lifetime, 0, + 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, &ip6_v6only, 0, ""); + v6only, CTLFLAG_RW | CTLFLAG_LOCKED, &ip6_v6only, 0, ""); SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, - auto_linklocal, CTLFLAG_RW, &ip6_auto_linklocal, 0, ""); -SYSCTL_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD, + 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, ""); /* net.inet6.icmp6 */ SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, - rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); + rediraccept, CTLFLAG_RW | CTLFLAG_LOCKED, &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, + 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, &nd6_prune, 0, ""); + 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, &nd6_delay, 0, ""); + nd6_delay, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_delay, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, - nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); + nd6_umaxtries, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_umaxtries, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, - nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); + nd6_mmaxtries, CTLFLAG_RW | CTLFLAG_LOCKED, &nd6_mmaxtries, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, - nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); + 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, &icmp6_nodeinfo, 0, ""); + nodeinfo, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6_nodeinfo, 0, ""); SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, - errppslimit, CTLFLAG_RW, &icmp6errppslim, 0, ""); -SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, - nd6_maxnudhint, CTLFLAG_RW, &nd6_maxnudhint, 0, ""); + errppslimit, CTLFLAG_RW | CTLFLAG_LOCKED, &icmp6errppslim, 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, &nd6_debug, 0, ""); - -#ifdef __APPLE__ -SYSCTL_INT(_net_inet6_ip6, OID_AUTO, auto_on, CTLFLAG_RW, &ip6_auto_on,0, ""); -#endif + 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, "");