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freebsd-skq/sys/netinet6/in6_proto.c
Robert Watson 530c006014 Merge the remainder of kern_vimage.c and vimage.h into vnet.c and 
vnet.h, we now use jails (rather than vimages) as the abstraction
for virtualization management, and what remained was specific to
virtual network stacks.  Minor cleanups are done in the process,
and comments updated to reflect these changes.

Reviewed by:	bz
Approved by:	re (vimage blanket)
2009-08-01 19:26:27 +00:00

575 lines
18 KiB
C
Raw Blame History

/*-
* 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.
*
* $KAME: in6_proto.c,v 1.91 2001/05/27 13:28:35 itojun Exp $
*/
/*-
* 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.
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_inet.h"
#include "opt_inet6.h"
#include "opt_ipsec.h"
#include "opt_ipstealth.h"
#include "opt_carp.h"
#include "opt_sctp.h"
#include "opt_mpath.h"
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/proc.h>
#include <sys/protosw.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#include <sys/systm.h>
#include <sys/sysctl.h>
#include <net/if.h>
#include <net/radix.h>
#include <net/route.h>
#ifdef RADIX_MPATH
#include <net/radix_mpath.h>
#endif
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip_encap.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>
#include <netinet/icmp6.h>
#include <netinet/tcp.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet6/tcp6_var.h>
#include <netinet6/raw_ip6.h>
#include <netinet6/udp6_var.h>
#include <netinet6/pim6_var.h>
#include <netinet6/nd6.h>
#ifdef DEV_CARP
#include <netinet/ip_carp.h>
#endif
#ifdef SCTP
#include <netinet/in_pcb.h>
#include <netinet/sctp_pcb.h>
#include <netinet/sctp.h>
#include <netinet/sctp_var.h>
#include <netinet6/sctp6_var.h>
#endif /* SCTP */
#ifdef IPSEC
#include <netipsec/ipsec.h>
#include <netipsec/ipsec6.h>
#endif /* IPSEC */
#include <netinet6/ip6protosw.h>
/*
* TCP/IP protocol family: IP6, ICMP6, UDP, TCP.
*/
extern struct domain inet6domain;
static struct pr_usrreqs nousrreqs;
#define PR_LISTEN 0
#define PR_ABRTACPTDIS 0
struct ip6protosw inet6sw[] = {
{
.pr_type = 0,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_IPV6,
.pr_init = ip6_init,
#ifdef VIMAGE
.pr_destroy = ip6_destroy,
#endif
.pr_slowtimo = frag6_slowtimo,
.pr_drain = frag6_drain,
.pr_usrreqs = &nousrreqs,
},
{
.pr_type = SOCK_DGRAM,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_UDP,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = udp6_input,
.pr_ctlinput = udp6_ctlinput,
.pr_ctloutput = ip6_ctloutput,
.pr_usrreqs = &udp6_usrreqs,
},
{
.pr_type = SOCK_STREAM,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_TCP,
.pr_flags = PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN,
.pr_input = tcp6_input,
.pr_ctlinput = tcp6_ctlinput,
.pr_ctloutput = tcp_ctloutput,
#ifndef INET /* don't call initialization and timeout routines twice */
.pr_init = tcp_init,
.pr_fasttimo = tcp_fasttimo,
.pr_slowtimo = tcp_slowtimo,
#endif
.pr_drain = tcp_drain,
.pr_usrreqs = &tcp6_usrreqs,
},
#ifdef SCTP
{
.pr_type = SOCK_DGRAM,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_SCTP,
.pr_flags = PR_WANTRCVD,
.pr_input = sctp6_input,
.pr_ctlinput = sctp6_ctlinput,
.pr_ctloutput = sctp_ctloutput,
.pr_drain = sctp_drain,
.pr_usrreqs = &sctp6_usrreqs
},
{
.pr_type = SOCK_SEQPACKET,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_SCTP,
.pr_flags = PR_WANTRCVD,
.pr_input = sctp6_input,
.pr_ctlinput = sctp6_ctlinput,
.pr_ctloutput = sctp_ctloutput,
.pr_drain = sctp_drain,
.pr_usrreqs = &sctp6_usrreqs
},
{
.pr_type = SOCK_STREAM,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_SCTP,
.pr_flags = PR_WANTRCVD,
.pr_input = sctp6_input,
.pr_ctlinput = sctp6_ctlinput,
.pr_ctloutput = sctp_ctloutput,
.pr_drain = sctp_drain,
.pr_usrreqs = &sctp6_usrreqs
},
#endif /* SCTP */
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_RAW,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = rip6_input,
.pr_output = rip6_output,
.pr_ctlinput = rip6_ctlinput,
.pr_ctloutput = rip6_ctloutput,
.pr_usrreqs = &rip6_usrreqs
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_ICMPV6,
.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
.pr_input = icmp6_input,
.pr_output = rip6_output,
.pr_ctlinput = rip6_ctlinput,
.pr_ctloutput = rip6_ctloutput,
.pr_init = icmp6_init,
.pr_fasttimo = icmp6_fasttimo,
.pr_slowtimo = icmp6_slowtimo,
.pr_usrreqs = &rip6_usrreqs
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_DSTOPTS,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = dest6_input,
.pr_usrreqs = &nousrreqs
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_ROUTING,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = route6_input,
.pr_usrreqs = &nousrreqs
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_FRAGMENT,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = frag6_input,
.pr_usrreqs = &nousrreqs
},
#ifdef IPSEC
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_AH,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = ipsec6_common_input,
.pr_usrreqs = &nousrreqs,
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_ESP,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = ipsec6_common_input,
.pr_ctlinput = esp6_ctlinput,
.pr_usrreqs = &nousrreqs,
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_IPCOMP,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = ipsec6_common_input,
.pr_usrreqs = &nousrreqs,
},
#endif /* IPSEC */
#ifdef INET
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_IPV4,
.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
.pr_input = encap6_input,
.pr_output = rip6_output,
.pr_ctloutput = rip6_ctloutput,
.pr_init = encap_init,
.pr_usrreqs = &rip6_usrreqs
},
#endif /* INET */
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_IPV6,
.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
.pr_input = encap6_input,
.pr_output = rip6_output,
.pr_ctloutput = rip6_ctloutput,
.pr_init = encap_init,
.pr_usrreqs = &rip6_usrreqs
},
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_PIM,
.pr_flags = PR_ATOMIC|PR_ADDR|PR_LASTHDR,
.pr_input = encap6_input,
.pr_output = rip6_output,
.pr_ctloutput = rip6_ctloutput,
.pr_usrreqs = &rip6_usrreqs
},
#ifdef DEV_CARP
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_protocol = IPPROTO_CARP,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = carp6_input,
.pr_output = rip6_output,
.pr_ctloutput = rip6_ctloutput,
.pr_usrreqs = &rip6_usrreqs
},
#endif /* DEV_CARP */
/* raw wildcard */
{
.pr_type = SOCK_RAW,
.pr_domain = &inet6domain,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_input = rip6_input,
.pr_output = rip6_output,
.pr_ctloutput = rip6_ctloutput,
.pr_usrreqs = &rip6_usrreqs
},
};
extern int in6_inithead(void **, int);
#ifdef VIMAGE
extern int in6_detachhead(void **, int);
#endif
struct domain inet6domain = {
.dom_family = AF_INET6,
.dom_name = "internet6",
.dom_protosw = (struct protosw *)inet6sw,
.dom_protoswNPROTOSW = (struct protosw *)
&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])],
#ifdef RADIX_MPATH
.dom_rtattach = rn6_mpath_inithead,
#else
.dom_rtattach = in6_inithead,
#endif
#ifdef VIMAGE
.dom_rtdetach = in6_detachhead,
#endif
.dom_rtoffset = offsetof(struct sockaddr_in6, sin6_addr) << 3,
.dom_maxrtkey = sizeof(struct sockaddr_in6),
.dom_ifattach = in6_domifattach,
.dom_ifdetach = in6_domifdetach
};
VNET_DOMAIN_SET(inet6);
/*
* Internet configuration info
*/
VNET_DEFINE(int, ip6_forwarding);
VNET_DEFINE(int, ip6_sendredirects);
VNET_DEFINE(int, ip6_defhlim);
VNET_DEFINE(int, ip6_defmcasthlim);
VNET_DEFINE(int, ip6_accept_rtadv);
VNET_DEFINE(int, ip6_maxfragpackets);
VNET_DEFINE(int, ip6_maxfrags);
VNET_DEFINE(int, ip6_log_interval);
VNET_DEFINE(int, ip6_hdrnestlimit);
VNET_DEFINE(int, ip6_dad_count);
VNET_DEFINE(int, ip6_auto_flowlabel);
VNET_DEFINE(int, ip6_use_deprecated);
VNET_DEFINE(int, ip6_rr_prune);
VNET_DEFINE(int, ip6_mcast_pmtu);
VNET_DEFINE(int, ip6_v6only);
VNET_DEFINE(int, ip6_keepfaith);
VNET_DEFINE(time_t, ip6_log_time);
VNET_DEFINE(int, ip6stealth);
VNET_DEFINE(int, nd6_onlink_ns_rfc4861);
/* 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)
*/
VNET_DEFINE(int, pmtu_expire);
VNET_DEFINE(int, pmtu_probe);
/* raw IP6 parameters */
/*
* Nominal space allocated to a raw ip socket.
*/
VNET_DEFINE(u_long, rip6_sendspace);
VNET_DEFINE(u_long, rip6_recvspace);
/* ICMPV6 parameters */
VNET_DEFINE(int, icmp6_rediraccept);
VNET_DEFINE(int, icmp6_redirtimeout);
VNET_DEFINE(int, icmp6errppslim);
/* control how to respond to NI queries */
VNET_DEFINE(int, icmp6_nodeinfo);
/* UDP on IP6 parameters */
VNET_DEFINE(int, udp6_sendspace);
VNET_DEFINE(int, udp6_recvspace);
/*
* 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 SCTP
SYSCTL_NODE(_net_inet6, IPPROTO_SCTP, sctp6, CTLFLAG_RW, 0, "SCTP6");
#endif
#ifdef IPSEC
SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6");
#endif /* IPSEC */
/* net.inet6.ip6 */
static int
sysctl_ip6_temppltime(SYSCTL_HANDLER_ARGS)
{
int error = 0;
int old;
VNET_SYSCTL_ARG(req, arg1);
error = SYSCTL_OUT(req, arg1, sizeof(int));
if (error || !req->newptr)
return (error);
old = V_ip6_temp_preferred_lifetime;
error = SYSCTL_IN(req, arg1, sizeof(int));
if (V_ip6_temp_preferred_lifetime <
V_ip6_desync_factor + V_ip6_temp_regen_advance) {
V_ip6_temp_preferred_lifetime = old;
return (EINVAL);
}
return (error);
}
static int
sysctl_ip6_tempvltime(SYSCTL_HANDLER_ARGS)
{
int error = 0;
int old;
VNET_SYSCTL_ARG(req, arg1);
error = SYSCTL_OUT(req, arg1, sizeof(int));
if (error || !req->newptr)
return (error);
old = V_ip6_temp_valid_lifetime;
error = SYSCTL_IN(req, arg1, sizeof(int));
if (V_ip6_temp_valid_lifetime < V_ip6_temp_preferred_lifetime) {
V_ip6_temp_preferred_lifetime = old;
return (EINVAL);
}
return (error);
}
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, forwarding, CTLFLAG_RW,
&VNET_NAME(ip6_forwarding), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, redirect, CTLFLAG_RW,
&VNET_NAME(ip6_sendredirects), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, hlim, CTLFLAG_RW,
&VNET_NAME(ip6_defhlim), 0, "");
SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_STATS, stats, CTLFLAG_RD,
&VNET_NAME(ip6stat), ip6stat, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, maxfragpackets,
CTLFLAG_RW, &VNET_NAME(ip6_maxfragpackets), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, accept_rtadv,
CTLFLAG_RW, &VNET_NAME(ip6_accept_rtadv), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, keepfaith, CTLFLAG_RW,
&VNET_NAME(ip6_keepfaith), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, log_interval,
CTLFLAG_RW, &VNET_NAME(ip6_log_interval), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, hdrnestlimit,
CTLFLAG_RW, &VNET_NAME(ip6_hdrnestlimit), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, dad_count, CTLFLAG_RW,
&VNET_NAME(ip6_dad_count), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, auto_flowlabel,
CTLFLAG_RW, &VNET_NAME(ip6_auto_flowlabel), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, defmcasthlim,
CTLFLAG_RW, &VNET_NAME(ip6_defmcasthlim), 0, "");
SYSCTL_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION, kame_version,
CTLFLAG_RD, __KAME_VERSION, 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEPRECATED, use_deprecated,
CTLFLAG_RW, &VNET_NAME(ip6_use_deprecated), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_RR_PRUNE, rr_prune, CTLFLAG_RW,
&VNET_NAME(ip6_rr_prune), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USETEMPADDR, use_tempaddr,
CTLFLAG_RW, &VNET_NAME(ip6_use_tempaddr), 0, "");
SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPPLTIME, temppltime,
CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_preferred_lifetime), 0,
sysctl_ip6_temppltime, "I", "");
SYSCTL_VNET_PROC(_net_inet6_ip6, IPV6CTL_TEMPVLTIME, tempvltime,
CTLTYPE_INT|CTLFLAG_RW, &VNET_NAME(ip6_temp_valid_lifetime), 0,
sysctl_ip6_tempvltime, "I", "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_V6ONLY, v6only, CTLFLAG_RW,
&VNET_NAME(ip6_v6only), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_AUTO_LINKLOCAL, auto_linklocal,
CTLFLAG_RW, &VNET_NAME(ip6_auto_linklocal), 0, "");
SYSCTL_VNET_STRUCT(_net_inet6_ip6, IPV6CTL_RIP6STATS, rip6stats, CTLFLAG_RD,
&VNET_NAME(rip6stat), rip6stat, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_PREFER_TEMPADDR, prefer_tempaddr,
CTLFLAG_RW, &VNET_NAME(ip6_prefer_tempaddr), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_USE_DEFAULTZONE, use_defaultzone,
CTLFLAG_RW, &VNET_NAME(ip6_use_defzone), 0,"");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGS, maxfrags, CTLFLAG_RW,
&VNET_NAME(ip6_maxfrags), 0, "");
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_MCAST_PMTU, mcast_pmtu, CTLFLAG_RW,
&VNET_NAME(ip6_mcast_pmtu), 0, "");
#ifdef IPSTEALTH
SYSCTL_VNET_INT(_net_inet6_ip6, IPV6CTL_STEALTH, stealth, CTLFLAG_RW,
&VNET_NAME(ip6stealth), 0, "");
#endif
/* net.inet6.icmp6 */
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, rediraccept,
CTLFLAG_RW, &VNET_NAME(icmp6_rediraccept), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, redirtimeout,
CTLFLAG_RW, &VNET_NAME(icmp6_redirtimeout), 0, "");
SYSCTL_VNET_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD,
&VNET_NAME(icmp6stat), icmp6stat, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, nd6_prune, CTLFLAG_RW,
&VNET_NAME(nd6_prune), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, nd6_delay, CTLFLAG_RW,
&VNET_NAME(nd6_delay), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, nd6_umaxtries,
CTLFLAG_RW, &VNET_NAME(nd6_umaxtries), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, nd6_mmaxtries,
CTLFLAG_RW, &VNET_NAME(nd6_mmaxtries), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, nd6_useloopback,
CTLFLAG_RW, &VNET_NAME(nd6_useloopback), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_NODEINFO, nodeinfo, CTLFLAG_RW,
&VNET_NAME(icmp6_nodeinfo), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ERRPPSLIMIT, errppslimit,
CTLFLAG_RW, &VNET_NAME(icmp6errppslim), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MAXNUDHINT, nd6_maxnudhint,
CTLFLAG_RW, &VNET_NAME(nd6_maxnudhint), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DEBUG, nd6_debug, CTLFLAG_RW,
&VNET_NAME(nd6_debug), 0, "");
SYSCTL_VNET_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_ONLINKNSRFC4861,
nd6_onlink_ns_rfc4861, CTLFLAG_RW, &VNET_NAME(nd6_onlink_ns_rfc4861),
0, "Accept 'on-link' nd6 NS in compliance with RFC 4861.");
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