#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__NetBSD__)
#include "opt_inet.h"
#if __NetBSD__
#include "opt_ipsec.h"
#endif
#endif
#include <sys/param.h>
#include <sys/socket.h>
#if defined(__FreeBSD__) || defined (__APPLE__)
#include <sys/socketvar.h>
#endif
#include <sys/protosw.h>
#include <sys/kernel.h>
#include <sys/domain.h>
#include <sys/mbuf.h>
#if defined (__FreeBSD__) || defined (__APPLE__)
#include <sys/systm.h>
#include <sys/sysctl.h>
#endif
#include <net/if.h>
#include <net/radix.h>
#include <net/route.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/in_var.h>
#include <netinet/ip_encap.h>
#if defined (__APPLE__) || (defined(__FreeBSD__) && __FreeBSD__ >= 3) || (defined(__NetBSD__) && !defined(TCP6)) || defined(__OpenBSD__) || (defined(__bsdi__) && _BSDI_VERSION >= 199802)
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#endif
#if (defined(__NetBSD__) && !defined(TCP6)) || defined(__OpenBSD__) || (defined(__bsdi__) && _BSDI_VERSION >= 199802)
#include <netinet/in_pcb.h>
#endif
#include <netinet/ip6.h>
#include <netinet6/ip6_var.h>
#include <netinet/icmp6.h>
#if defined (__APPLE__)
#include <netinet/tcp.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
# if (defined(__FreeBSD__) && __FreeBSD__ >= 4)
#include <netinet6/tcp6_var.h>
# endif
#else
#if defined(__NetBSD__) && !defined(TCP6)
#include <netinet/tcp.h>
#include <netinet/tcp_fsm.h>
#include <netinet/tcp_seq.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <netinet/tcpip.h>
#include <netinet/tcp_debug.h>
#else
#include <netinet6/tcp6.h>
#include <netinet6/tcp6_fsm.h>
#include <netinet6/tcp6_seq.h>
#include <netinet6/tcp6_timer.h>
#include <netinet6/tcp6_var.h>
#endif
#endif
#include <netinet6/udp6.h>
#include <netinet6/udp6_var.h>
#include <netinet6/pim6_var.h>
#include <netinet6/nd6.h>
#if defined (__APPLE__)
#include <netinet6/in6_prefix.h>
#endif
#if IPSEC
#include <netinet6/ipsec.h>
#include <netinet6/ah.h>
#if IPSEC_ESP
#include <netinet6/esp.h>
#endif
#include <netinet6/ipcomp.h>
#endif
#include <netinet6/ip6protosw.h>
#include <netinet/tcpip.h>
#include "gif.h"
#if NGIF > 0
#include <netinet6/in6_gif.h>
#endif
#if MIP6
#include <netinet6/mip6.h>
#endif
#include <net/net_osdep.h>
#define offsetof(type, member) ((size_t)(&((type *)0)->member))
extern struct domain inet6domain;
#if defined(__FreeBSD__) && __FreeBSD__ >= 3 || defined (__APPLE__)
static struct pr_usrreqs nousrreqs;
#endif
struct ip6protosw inet6sw[] = {
{ 0, &inet6domain, IPPROTO_IPV6, 0,
0, 0, 0, 0,
0,
ip6_init, 0, frag6_slowtimo, frag6_drain,
0, &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
},
{ SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD,
tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput,
0,
tcp_init, 0, 0, tcp_drain,
0, &tcp6_usrreqs
},
{ 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
},
{ SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC | PR_ADDR,
icmp6_input, rip6_output, 0, rip6_ctloutput,
0,
icmp6_init, icmp6_fasttimo, 0, 0,
0, &rip6_usrreqs
},
{ SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR,
dest6_input, 0, 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,
0, &nousrreqs
},
{ SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR,
frag6_input, 0, 0, 0,
0,
0, 0, 0, 0,
0, &nousrreqs
},
#if IPSEC
{ SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR,
ah6_input, 0, 0, 0,
0,
0, 0, 0, 0,
0, &nousrreqs
},
#if IPSEC_ESP
{ SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR,
esp6_input, 0, 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,
0, &nousrreqs
},
#endif
{ SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR,
encap6_input, rip6_output, 0, rip6_ctloutput,
0,
0, 0, 0, 0,
0, &nousrreqs
},
#if INET6
{ SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR,
encap6_input, rip6_output, 0, rip6_ctloutput,
0,
0, 0, 0, 0,
0, &rip6_usrreqs
},
#endif
{ SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR,
pim6_input, rip6_output, 0, rip6_ctloutput,
0,
0, 0, 0, 0,
0, &rip6_usrreqs
},
{ SOCK_RAW, &inet6domain, 0, PR_ATOMIC | PR_ADDR,
rip6_input, rip6_output, 0, rip6_ctloutput,
0,
0, 0, 0, 0,
0, &rip6_usrreqs
},
};
#if NGIF > 0
struct ip6protosw in6_gif_protosw =
{ SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR,
in6_gif_input, rip6_output, 0, rip6_ctloutput,
0,
0, 0, 0, 0,
0, &rip6_usrreqs
};
#endif
#if MIP6
struct ip6protosw mip6_tunnel_protosw =
{ SOCK_RAW, &inet6domain, 0, PR_ATOMIC|PR_ADDR,
mip6_tunnel_input, rip6_output, 0, rip6_ctloutput,
0,
0, 0, 0, 0,
0, &rip6_usrreqs
};
#endif
extern int in6_inithead __P((void **, int));
int in6_proto_count = (sizeof (inet6sw) / sizeof (struct ip6protosw));
extern void in6_dinit(void);
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);
#ifndef IPV6FORWARDING
#if GATEWAY6
#define IPV6FORWARDING 1
#else
#define IPV6FORWARDING 0
#endif
#endif
#ifndef IPV6_SENDREDIRECTS
#define IPV6_SENDREDIRECTS 1
#endif
int ip6_forwarding = IPV6FORWARDING;
int ip6_sendredirects = IPV6_SENDREDIRECTS;
int ip6_defhlim = IPV6_DEFHLIM;
int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS;
int ip6_accept_rtadv = 0;
int ip6_maxfragpackets = 200;
int ip6_log_interval = 5;
int ip6_hdrnestlimit = 50;
int ip6_dad_count = 1;
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;
int ip6_rr_prune = 5;
#if MAPPED_ADDR_ENABLED
int ip6_mapped_addr_on = 1;
#endif
u_int32_t ip6_id = 0UL;
int ip6_keepfaith = 0;
time_t ip6_log_time = (time_t)0L;
#ifndef __bsdi__
int pmtu_expire = 60*10;
int pmtu_probe = 60*2;
#endif
#define RIPV6SNDQ 8192
#define RIPV6RCVQ 8192
u_long rip6_sendspace = RIPV6SNDQ;
u_long rip6_recvspace = RIPV6RCVQ;
int icmp6_rediraccept = 1;
int icmp6_redirtimeout = 10 * 60;
u_int icmp6errratelim = 1000;
int icmp6_nodeinfo = 1;
#if TCP6
int tcp6_sendspace = 1024 * 8;
int tcp6_recvspace = 1024 * 8;
int tcp6_mssdflt = TCP6_MSS;
int tcp6_rttdflt = TCP6TV_SRTTDFLT / PR_SLOWHZ;
int tcp6_do_rfc1323 = 1;
int tcp6_conntimeo = TCP6TV_KEEP_INIT;
int tcp6_43maxseg = 0;
int tcp6_pmtu = 0;
int tcp6_keepidle = TCP6TV_KEEP_IDLE;
int tcp6_keepintvl = TCP6TV_KEEPINTVL;
int tcp6_keepcnt = TCP6TV_KEEPCNT;
int tcp6_maxpersistidle = TCP6TV_KEEP_IDLE;
#ifndef INET_SERVER
#define TCP6_LISTEN_HASH_SIZE 17
#define TCP6_CONN_HASH_SIZE 97
#define TCP6_SYN_HASH_SIZE 293
#define TCP6_SYN_BUCKET_SIZE 35
#else
#define TCP6_LISTEN_HASH_SIZE 97
#define TCP6_CONN_HASH_SIZE 9973
#define TCP6_SYN_HASH_SIZE 997
#define TCP6_SYN_BUCKET_SIZE 35
#endif
int tcp6_listen_hash_size = TCP6_LISTEN_HASH_SIZE;
int tcp6_conn_hash_size = TCP6_CONN_HASH_SIZE;
struct tcp6_hash_list tcp6_listen_hash[TCP6_LISTEN_HASH_SIZE],
tcp6_conn_hash[TCP6_CONN_HASH_SIZE];
int tcp6_syn_cache_size = TCP6_SYN_HASH_SIZE;
int tcp6_syn_cache_limit = TCP6_SYN_HASH_SIZE*TCP6_SYN_BUCKET_SIZE;
int tcp6_syn_bucket_limit = 3*TCP6_SYN_BUCKET_SIZE;
struct syn_cache_head6 tcp6_syn_cache[TCP6_SYN_HASH_SIZE];
struct syn_cache_head6 *tcp6_syn_cache_first;
int tcp6_syn_cache_interval = 8;
int tcp6_syn_cache_timeo = TCP6TV_KEEP_INIT;
#ifndef TCP6_ROUNDSIZE
#define TCP6_ROUNDSIZE 256
#endif
#ifndef TCP6_ROUNDFRAC
#define TCP6_ROUNDFRAC 10
#endif
int tcp6_roundsize = TCP6_ROUNDSIZE;
int tcp6_roundfrac = TCP6_ROUNDFRAC;
#endif
int udp6_sendspace = 9216;
int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6));
#if defined(__FreeBSD__) || defined(__APPLE__)
SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0,
"Internet6 Family");
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");
#if IPSEC
SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6");
#endif
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) {
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 {
while(!LIST_EMPTY(&rr_prefix))
delete_each_prefix(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_STRING(_net_inet6_ip6, IPV6CTL_KAME_VERSION,
kame_version, CTLFLAG_RD, __KAME_VERSION, 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, "");
#if MAPPED_ADDR_ENABLED
SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAPPED_ADDR,
mapped_addr, CTLFLAG_RW, &ip6_mapped_addr_on, 0, "");
#endif
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_NODEINFO,
nodeinfo, CTLFLAG_RW, &icmp6_nodeinfo, 0, "");
#if defined(__FreeBSD__) && __FreeBSD__ < 3
SYSCTL_INT(_net_inet6_udp6, UDP6CTL_SENDMAX,
sendmax, CTLFLAG_RW, &udp6_sendspace, 0, "");
SYSCTL_INT(_net_inet6_udp6, UDP6CTL_RECVSPACE,
recvspace, CTLFLAG_RW, &udp6_recvspace, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MSSDFLT,
mssdflt, CTLFLAG_RW, &tcp6_mssdflt, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_DO_RFC1323,
do_rfc1323, CTLFLAG_RW, &tcp6_do_rfc1323, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPIDLE,
keepidle, CTLFLAG_RW, &tcp6_keepidle, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPINTVL,
keepintvl, CTLFLAG_RW, &tcp6_keepintvl, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPCNT,
keepcnt, CTLFLAG_RW, &tcp6_keepcnt, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MAXPERSISTIDLE,
maxpersistidle, CTLFLAG_RW, &tcp6_maxpersistidle, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SENDSPACE,
sendspace, CTLFLAG_RW, &tcp6_sendspace, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_RECVSPACE,
recvspace, CTLFLAG_RW, &tcp6_recvspace, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_CONNTIMEO,
conntimeo, CTLFLAG_RW, &tcp6_conntimeo, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU,
pmtu, CTLFLAG_RW, &tcp6_pmtu, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_EXPIRE,
pmtu_expire, CTLFLAG_RW, &pmtu_expire, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_PROBE,
pmtu_probe, CTLFLAG_RW, &pmtu_probe, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_43MAXSEG,
pmtu_43maxseg, CTLFLAG_RW, &tcp6_43maxseg, 0, "");
SYSCTL_STRUCT(_net_inet6_tcp6, TCP6CTL_STATS, stats, CTLFLAG_RD,
&tcp6stat, tcp6stat, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_LIMIT,
syn_cache_limit, CTLFLAG_RW, &tcp6_syn_cache_limit, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_BUCKET_LIMIT,
syn_bucket_limit, CTLFLAG_RW, &tcp6_syn_bucket_limit, 0, "");
SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_INTER,
syn_cache_interval, CTLFLAG_RW, &tcp6_syn_cache_interval, 0, "");
#endif
#endif