in6_proto.c revision 1.4
1 /* $NetBSD: in6_proto.c,v 1.4 1999/07/09 22:57:27 thorpej Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the project nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1982, 1986, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. All advertising materials mentioning features or use of this software 45 * must display the following acknowledgement: 46 * This product includes software developed by the University of 47 * California, Berkeley and its contributors. 48 * 4. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)in_proto.c 8.1 (Berkeley) 6/10/93 65 */ 66 67 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__NetBSD__) 68 #include "opt_inet.h" 69 #include "opt_ipsec.h" 70 #endif 71 72 #include <sys/param.h> 73 #include <sys/socket.h> 74 #include <sys/protosw.h> 75 #include <sys/kernel.h> 76 #include <sys/domain.h> 77 #include <sys/mbuf.h> 78 79 #include <net/if.h> 80 #include <net/radix.h> 81 #include <net/route.h> 82 83 #include <netinet/in.h> 84 #include <netinet/in_systm.h> 85 #include <netinet/in_var.h> 86 #include <netinet6/in6_systm.h> 87 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || (defined(__NetBSD__) && !defined(TCP6)) 88 #include <netinet/ip.h> 89 #include <netinet/ip_var.h> 90 #endif 91 #if defined(__NetBSD__) && !defined(TCP6) 92 #include <netinet/in_pcb.h> 93 #endif 94 #include <netinet6/ip6.h> 95 #include <netinet6/ip6_var.h> 96 #include <netinet6/icmp6.h> 97 #if !defined(__FreeBSD__) || __FreeBSD__ < 3 98 #include <netinet6/in6_pcb.h> 99 #endif 100 101 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) 102 #include <netinet/tcp.h> 103 #include <netinet/tcp_timer.h> 104 #include <netinet/tcp_var.h> 105 #include <netinet/udp.h> 106 #include <netinet/udp_var.h> 107 #else 108 #if defined(__NetBSD__) && !defined(TCP6) 109 #include <netinet/tcp.h> 110 #include <netinet/tcp_fsm.h> 111 #include <netinet/tcp_seq.h> 112 #include <netinet/tcp_timer.h> 113 #include <netinet/tcp_var.h> 114 #include <netinet/tcpip.h> 115 #include <netinet/tcp_debug.h> 116 #else 117 #include <netinet6/tcp6.h> 118 #include <netinet6/tcp6_fsm.h> 119 #include <netinet6/tcp6_seq.h> 120 #include <netinet6/tcp6_timer.h> 121 #include <netinet6/tcp6_var.h> 122 #endif 123 #endif 124 125 #include <netinet6/udp6.h> 126 #include <netinet6/udp6_var.h> 127 128 #include <netinet6/pim6_var.h> 129 130 #include <netinet6/nd6.h> 131 132 #ifdef IPSEC 133 #include <netinet6/ah.h> 134 #ifdef IPSEC_ESP 135 #include <netinet6/esp.h> 136 #endif 137 #include <netinet6/ipcomp.h> 138 #endif /*IPSEC*/ 139 140 #include <netinet6/ip6protosw.h> 141 142 #include "gif.h" 143 #if NGIF > 0 144 #include <netinet6/in6_gif.h> 145 #endif 146 147 #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 148 149 /* 150 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 151 */ 152 153 extern struct domain inet6domain; 154 155 struct ip6protosw inet6sw[] = { 156 { 0, &inet6domain, IPPROTO_IPV6, 0, 157 0, 0, 0, 0, 158 0, 159 ip6_init, 0, frag6_slowtimo, frag6_drain, ip6_sysctl 160 }, 161 { SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC | PR_ADDR, 162 udp6_input, 0, udp6_ctlinput, ip6_ctloutput, 163 udp6_usrreq, 164 udp6_init, 0, 0, 0, udp6_sysctl 165 }, 166 #ifdef TCP6 167 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN, 168 tcp6_input, 0, tcp6_ctlinput, tcp6_ctloutput, 169 tcp6_usrreq, 170 tcp6_init, tcp6_fasttimo, tcp6_slowtimo, tcp6_drain, tcp6_sysctl 171 }, 172 #else 173 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN, 174 tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput, 175 tcp_usrreq, 176 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 177 }, 178 #endif 179 { SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC | PR_ADDR, 180 rip6_input, rip6_output, 0, rip6_ctloutput, 181 rip6_usrreq, 182 0, 0, 0, 0, 0 183 }, 184 { SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC | PR_ADDR, 185 icmp6_input, rip6_output, 0, rip6_ctloutput, 186 rip6_usrreq, 187 icmp6_init, icmp6_fasttimo, 0, 0, icmp6_sysctl 188 }, 189 { SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, 190 dest6_input, 0, 0, 0, 191 0, 192 0, 0, 0, 0, 193 }, 194 { SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, 195 route6_input, 0, 0, 0, 196 0, 197 0, 0, 0, 0, 198 }, 199 { SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, 200 frag6_input, 0, 0, 0, 201 0, 202 0, 0, 0, 0, 203 }, 204 #ifdef IPSEC 205 { SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 206 ah6_input, 0, 0, 0, 207 0, 208 0, 0, 0, 0, ipsec6_sysctl 209 }, 210 #ifdef IPSEC_ESP 211 { SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 212 esp6_input, 0, 0, 0, 213 0, 214 0, 0, 0, 0, ipsec6_sysctl 215 }, 216 #endif 217 { SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 218 ipcomp6_input, 0, 0, 0, 219 0, 220 0, 0, 0, 0, ipsec6_sysctl 221 }, 222 #endif /* IPSEC */ 223 #if NGIF > 0 224 { SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR, 225 in6_gif_input,0, 0, 0, 226 0, 227 0, 0, 0, 0, 228 }, 229 #ifdef INET6 230 { SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, 231 in6_gif_input,0, 0, 0, 232 0, 233 0, 0, 0, 0, 234 }, 235 #endif /* INET6 */ 236 #endif /* GIF */ 237 { SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR, 238 pim6_input, rip6_output, 0, rip6_ctloutput, 239 rip6_usrreq, 240 0, 0, 0, 0, 241 }, 242 /* raw wildcard */ 243 { SOCK_RAW, &inet6domain, 0, PR_ATOMIC | PR_ADDR, 244 rip6_input, rip6_output, 0, rip6_ctloutput, 245 rip6_usrreq, 246 rip6_init, 0, 0, 0, 247 }, 248 }; 249 250 struct domain inet6domain = 251 { AF_INET6, "internet6", 0, 0, 0, 252 (struct protosw *)inet6sw, 253 (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0, 254 rn_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, 255 sizeof(struct sockaddr_in6) }; 256 257 #ifdef __FreeBSD__ 258 DOMAIN_SET(inet6); 259 #endif 260 261 /* 262 * Internet configuration info 263 */ 264 #ifndef IPV6FORWARDING 265 #ifdef GATEWAY6 266 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 267 #else 268 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 269 #endif /* GATEWAY6 */ 270 #endif /* !IPV6FORWARDING */ 271 272 #ifndef IPV6_SENDREDIRECTS 273 #define IPV6_SENDREDIRECTS 1 274 #endif 275 276 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 277 int ip6_sendredirects = IPV6_SENDREDIRECTS; 278 int ip6_defhlim = IPV6_DEFHLIM; 279 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 280 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 281 int ip6_maxfragpackets = 200; 282 int ip6_log_interval = 5; 283 int ip6_hdrnestlimit = 50; /* appropriate? */ 284 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 285 u_int32_t ip6_flow_seq; 286 int ip6_auto_flowlabel = 1; 287 #if NGIF > 0 288 int ip6_gif_hlim = GIF_HLIM; 289 #else 290 int ip6_gif_hlim = 0; 291 #endif 292 293 u_long ip6_id = 0UL; 294 int ip6_keepfaith = 0; 295 time_t ip6_log_time = (time_t)0L; 296 297 /* icmp6 */ 298 int pmtu_expire = 60*10; 299 int pmtu_probe = 60*2; 300 301 /* raw IP6 parameters */ 302 /* 303 * Nominal space allocated to a raw ip socket. 304 */ 305 #define RIPV6SNDQ 8192 306 #define RIPV6RCVQ 8192 307 308 u_long rip6_sendspace = RIPV6SNDQ; 309 u_long rip6_recvspace = RIPV6RCVQ; 310 311 /* ICMPV6 parameters */ 312 int icmp6_rediraccept = 1; /* accept and process redirects */ 313 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 314 u_int icmp6errratelim = 1000; /* 1000usec = 1msec */ 315 316 #ifdef TCP6 317 /* TCP on IP6 parameters */ 318 int tcp6_sendspace = 1024 * 8; 319 int tcp6_recvspace = 1024 * 8; 320 int tcp6_mssdflt = TCP6_MSS; 321 int tcp6_rttdflt = TCP6TV_SRTTDFLT / PR_SLOWHZ; 322 int tcp6_do_rfc1323 = 1; 323 int tcp6_conntimeo = TCP6TV_KEEP_INIT; /* initial connection timeout */ 324 int tcp6_43maxseg = 0; 325 int tcp6_pmtu = 0; 326 327 /* 328 * Parameters for keepalive option. 329 * Connections for which SO_KEEPALIVE is set will be probed 330 * after being idle for a time of tcp6_keepidle (in units of PR_SLOWHZ). 331 * Starting at that time, the connection is probed at intervals 332 * of tcp6_keepintvl (same units) until a response is received 333 * or until tcp6_keepcnt probes have been made, at which time 334 * the connection is dropped. Note that a tcp6_keepidle value 335 * under 2 hours is nonconformant with RFC-1122, Internet Host Requirements. 336 */ 337 int tcp6_keepidle = TCP6TV_KEEP_IDLE; /* time before probing idle */ 338 int tcp6_keepintvl = TCP6TV_KEEPINTVL; /* interval betwn idle probes */ 339 int tcp6_keepcnt = TCP6TV_KEEPCNT; /* max idle probes */ 340 int tcp6_maxpersistidle = TCP6TV_KEEP_IDLE; /* max idle time in persist */ 341 342 #ifndef INET_SERVER 343 #define TCP6_LISTEN_HASH_SIZE 17 344 #define TCP6_CONN_HASH_SIZE 97 345 #define TCP6_SYN_HASH_SIZE 293 346 #define TCP6_SYN_BUCKET_SIZE 35 347 #else 348 #define TCP6_LISTEN_HASH_SIZE 97 349 #define TCP6_CONN_HASH_SIZE 9973 350 #define TCP6_SYN_HASH_SIZE 997 351 #define TCP6_SYN_BUCKET_SIZE 35 352 #endif 353 int tcp6_listen_hash_size = TCP6_LISTEN_HASH_SIZE; 354 int tcp6_conn_hash_size = TCP6_CONN_HASH_SIZE; 355 struct tcp6_hash_list tcp6_listen_hash[TCP6_LISTEN_HASH_SIZE], 356 tcp6_conn_hash[TCP6_CONN_HASH_SIZE]; 357 358 int tcp6_syn_cache_size = TCP6_SYN_HASH_SIZE; 359 int tcp6_syn_cache_limit = TCP6_SYN_HASH_SIZE*TCP6_SYN_BUCKET_SIZE; 360 int tcp6_syn_bucket_limit = 3*TCP6_SYN_BUCKET_SIZE; 361 struct syn_cache_head6 tcp6_syn_cache[TCP6_SYN_HASH_SIZE]; 362 struct syn_cache_head6 *tcp6_syn_cache_first; 363 int tcp6_syn_cache_interval = 8; /* runs timer every 4 seconds */ 364 int tcp6_syn_cache_timeo = TCP6TV_KEEP_INIT; 365 366 /* 367 * Parameters for computing a desirable data segment size 368 * given an upper bound (either interface MTU, or peer's MSS option)_. 369 * As applications tend to use a buffer size that is a multiple 370 * of kilobytes, try for something that divides evenly. However, 371 * do not round down too much. 372 * 373 * Round segment size down to a multiple of TCP6_ROUNDSIZE if this 374 * does not result in lowering by more than (size/TCP6_ROUNDFRAC). 375 * For example, round 536 to 512. Older versions of the system 376 * effectively used MCLBYTES (1K or 2K) as TCP6_ROUNDSIZE, with 377 * a value of 1 for TCP6_ROUNDFRAC (eliminating its effect). 378 * We round to a multiple of 256 for SLIP. 379 */ 380 #ifndef TCP6_ROUNDSIZE 381 #define TCP6_ROUNDSIZE 256 /* round to multiple of 256 */ 382 #endif 383 #ifndef TCP6_ROUNDFRAC 384 #define TCP6_ROUNDFRAC 10 /* round down at most N/10, or 10% */ 385 #endif 386 387 int tcp6_roundsize = TCP6_ROUNDSIZE; 388 int tcp6_roundfrac = TCP6_ROUNDFRAC; 389 #endif /*TCP6*/ 390 391 /* UDP on IP6 parameters */ 392 int udp6_sendspace = 9216; /* really max datagram size */ 393 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 394 /* 40 1K datagrams */ 395 396 #ifdef __FreeBSD__ 397 /* 398 * sysctl related items. 399 */ 400 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 401 "Internet6 Family"); 402 403 /* net.inet6 */ 404 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 405 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 406 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 407 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 408 #ifdef IPSEC 409 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 410 #endif /* IPSEC */ 411 412 /* net.inet6.ip6 */ 413 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 414 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 415 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 416 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 417 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 418 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 419 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 420 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 421 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 422 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 423 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 424 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 425 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 426 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 427 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 428 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 429 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 430 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 431 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 432 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 433 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 434 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 435 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 436 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 437 438 /* net.inet6.icmp6 */ 439 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 440 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 441 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 442 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 443 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 444 &icmp6stat, icmp6stat, ""); 445 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRRATELIMIT, 446 errratelimit, CTLFLAG_RW, &icmp6errratelim, 0, ""); 447 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 448 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 449 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 450 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 451 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 452 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 453 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 454 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 455 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 456 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 457 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PROXYALL, 458 nd6_proxyall, CTLFLAG_RW, &nd6_proxyall, 0, ""); 459 460 /* net.inet6.udp6 */ 461 SYSCTL_INT(_net_inet6_udp6, UDP6CTL_SENDMAX, 462 sendmax, CTLFLAG_RW, &udp6_sendspace, 0, ""); 463 SYSCTL_INT(_net_inet6_udp6, UDP6CTL_RECVSPACE, 464 recvspace, CTLFLAG_RW, &udp6_recvspace, 0, ""); 465 466 /* net.inet6.tcp6 */ 467 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MSSDFLT, 468 mssdflt, CTLFLAG_RW, &tcp6_mssdflt, 0, ""); 469 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_DO_RFC1323, 470 do_rfc1323, CTLFLAG_RW, &tcp6_do_rfc1323, 0, ""); 471 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPIDLE, 472 keepidle, CTLFLAG_RW, &tcp6_keepidle, 0, ""); 473 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPINTVL, 474 keepintvl, CTLFLAG_RW, &tcp6_keepintvl, 0, ""); 475 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPCNT, 476 keepcnt, CTLFLAG_RW, &tcp6_keepcnt, 0, ""); 477 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MAXPERSISTIDLE, 478 maxpersistidle, CTLFLAG_RW, &tcp6_maxpersistidle, 0, ""); 479 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SENDSPACE, 480 sendspace, CTLFLAG_RW, &tcp6_sendspace, 0, ""); 481 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_RECVSPACE, 482 recvspace, CTLFLAG_RW, &tcp6_recvspace, 0, ""); 483 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_CONNTIMEO, 484 conntimeo, CTLFLAG_RW, &tcp6_conntimeo, 0, ""); 485 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU, 486 pmtu, CTLFLAG_RW, &tcp6_pmtu, 0, ""); 487 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_EXPIRE, 488 pmtu_expire, CTLFLAG_RW, &pmtu_expire, 0, ""); 489 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_PROBE, 490 pmtu_probe, CTLFLAG_RW, &pmtu_probe, 0, ""); 491 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_43MAXSEG, 492 pmtu_43maxseg, CTLFLAG_RW, &tcp6_43maxseg, 0, ""); 493 SYSCTL_STRUCT(_net_inet6_tcp6, TCP6CTL_STATS, stats, CTLFLAG_RD, 494 &tcp6stat, tcp6stat, ""); 495 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_LIMIT, 496 syn_cache_limit, CTLFLAG_RW, &tcp6_syn_cache_limit, 0, ""); 497 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_BUCKET_LIMIT, 498 syn_bucket_limit, CTLFLAG_RW, &tcp6_syn_bucket_limit, 0, ""); 499 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_INTER, 500 syn_cache_interval, CTLFLAG_RW, &tcp6_syn_cache_interval, 0, ""); 501 502 #endif /* __FreeBSD__ */ 503
Indexes created Mon Sep 22 10:09:38 GMT 2025