in6_proto.c revision 1.8
1 /* $NetBSD: in6_proto.c,v 1.8 1999/07/31 18:41:16 itojun 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 #ifdef __NetBSD__ /*XXX*/ 70 #include "opt_ipsec.h" 71 #endif 72 #endif 73 74 #include <sys/param.h> 75 #include <sys/socket.h> 76 #include <sys/protosw.h> 77 #include <sys/kernel.h> 78 #include <sys/domain.h> 79 #include <sys/mbuf.h> 80 81 #include <net/if.h> 82 #include <net/radix.h> 83 #include <net/route.h> 84 85 #include <netinet/in.h> 86 #include <netinet/in_systm.h> 87 #include <netinet/in_var.h> 88 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || (defined(__NetBSD__) && !defined(TCP6)) 89 #include <netinet/ip.h> 90 #include <netinet/ip_var.h> 91 #endif 92 #if defined(__NetBSD__) && !defined(TCP6) 93 #include <netinet/in_pcb.h> 94 #endif 95 #include <netinet6/ip6.h> 96 #include <netinet6/ip6_var.h> 97 #include <netinet6/icmp6.h> 98 #if !defined(__FreeBSD__) || __FreeBSD__ < 3 99 #include <netinet6/in6_pcb.h> 100 #endif 101 102 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) 103 #include <netinet/tcp.h> 104 #include <netinet/tcp_timer.h> 105 #include <netinet/tcp_var.h> 106 #include <netinet/udp.h> 107 #include <netinet/udp_var.h> 108 #else 109 #if defined(__NetBSD__) && !defined(TCP6) 110 #include <netinet/tcp.h> 111 #include <netinet/tcp_fsm.h> 112 #include <netinet/tcp_seq.h> 113 #include <netinet/tcp_timer.h> 114 #include <netinet/tcp_var.h> 115 #include <netinet/tcpip.h> 116 #include <netinet/tcp_debug.h> 117 #else 118 #include <netinet6/tcp6.h> 119 #include <netinet6/tcp6_fsm.h> 120 #include <netinet6/tcp6_seq.h> 121 #include <netinet6/tcp6_timer.h> 122 #include <netinet6/tcp6_var.h> 123 #endif 124 #endif 125 126 #include <netinet6/udp6.h> 127 #include <netinet6/udp6_var.h> 128 129 #include <netinet6/pim6_var.h> 130 131 #include <netinet6/nd6.h> 132 133 #ifdef IPSEC 134 #include <netinet6/ah.h> 135 #ifdef IPSEC_ESP 136 #include <netinet6/esp.h> 137 #endif 138 #include <netinet6/ipcomp.h> 139 #endif /*IPSEC*/ 140 141 #include <netinet6/ip6protosw.h> 142 143 #include "gif.h" 144 #if NGIF > 0 145 #include <netinet6/in6_gif.h> 146 #endif 147 148 #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 149 150 /* 151 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 152 */ 153 154 extern struct domain inet6domain; 155 156 struct ip6protosw inet6sw[] = { 157 { 0, &inet6domain, IPPROTO_IPV6, 0, 158 0, 0, 0, 0, 159 0, 160 ip6_init, 0, frag6_slowtimo, frag6_drain, ip6_sysctl 161 }, 162 { SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC | PR_ADDR, 163 udp6_input, 0, udp6_ctlinput, ip6_ctloutput, 164 udp6_usrreq, 165 udp6_init, 0, 0, 0, udp6_sysctl 166 }, 167 #ifdef TCP6 168 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN, 169 tcp6_input, 0, tcp6_ctlinput, tcp6_ctloutput, 170 tcp6_usrreq, 171 tcp6_init, tcp6_fasttimo, tcp6_slowtimo, tcp6_drain, tcp6_sysctl 172 }, 173 #else 174 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN, 175 tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput, 176 tcp_usrreq, 177 #ifdef INET 178 /* If inet4, no need to have tcp_slowtimo and tcp_fasttimo happen TWICE */ 179 tcp_init, NULL, NULL, tcp_drain, tcp_sysctl 180 #else 181 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 182 #endif 183 }, 184 #endif 185 { SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC | PR_ADDR, 186 rip6_input, rip6_output, 0, rip6_ctloutput, 187 rip6_usrreq, 188 0, 0, 0, 0, 0 189 }, 190 { SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC | PR_ADDR, 191 icmp6_input, rip6_output, 0, rip6_ctloutput, 192 rip6_usrreq, 193 icmp6_init, icmp6_fasttimo, 0, 0, icmp6_sysctl 194 }, 195 { SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, 196 dest6_input, 0, 0, 0, 197 0, 198 0, 0, 0, 0, 199 }, 200 { SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, 201 route6_input, 0, 0, 0, 202 0, 203 0, 0, 0, 0, 204 }, 205 { SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, 206 frag6_input, 0, 0, 0, 207 0, 208 0, 0, 0, 0, 209 }, 210 #ifdef IPSEC 211 { SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 212 ah6_input, 0, 0, 0, 213 0, 214 0, 0, 0, 0, ipsec6_sysctl 215 }, 216 #ifdef IPSEC_ESP 217 { SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 218 esp6_input, 0, 0, 0, 219 0, 220 0, 0, 0, 0, ipsec6_sysctl 221 }, 222 #endif 223 { SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 224 ipcomp6_input, 0, 0, 0, 225 0, 226 0, 0, 0, 0, ipsec6_sysctl 227 }, 228 #endif /* IPSEC */ 229 #if NGIF > 0 230 { SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR, 231 in6_gif_input,0, 0, 0, 232 0, 233 0, 0, 0, 0, 234 }, 235 #ifdef INET6 236 { SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, 237 in6_gif_input,0, 0, 0, 238 0, 239 0, 0, 0, 0, 240 }, 241 #endif /* INET6 */ 242 #endif /* GIF */ 243 { SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR, 244 pim6_input, rip6_output, 0, rip6_ctloutput, 245 rip6_usrreq, 246 0, 0, 0, 0, 247 }, 248 /* raw wildcard */ 249 { SOCK_RAW, &inet6domain, 0, PR_ATOMIC | PR_ADDR, 250 rip6_input, rip6_output, 0, rip6_ctloutput, 251 rip6_usrreq, 252 rip6_init, 0, 0, 0, 253 }, 254 }; 255 256 struct domain inet6domain = 257 { AF_INET6, "internet6", 0, 0, 0, 258 (struct protosw *)inet6sw, 259 (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0, 260 rn_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, 261 sizeof(struct sockaddr_in6) }; 262 263 #ifdef __FreeBSD__ 264 DOMAIN_SET(inet6); 265 #endif 266 267 /* 268 * Internet configuration info 269 */ 270 #ifndef IPV6FORWARDING 271 #ifdef GATEWAY6 272 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 273 #else 274 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 275 #endif /* GATEWAY6 */ 276 #endif /* !IPV6FORWARDING */ 277 278 #ifndef IPV6_SENDREDIRECTS 279 #define IPV6_SENDREDIRECTS 1 280 #endif 281 282 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 283 int ip6_sendredirects = IPV6_SENDREDIRECTS; 284 int ip6_defhlim = IPV6_DEFHLIM; 285 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 286 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 287 int ip6_maxfragpackets = 200; 288 int ip6_log_interval = 5; 289 int ip6_hdrnestlimit = 50; /* appropriate? */ 290 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 291 u_int32_t ip6_flow_seq; 292 int ip6_auto_flowlabel = 1; 293 #if NGIF > 0 294 int ip6_gif_hlim = GIF_HLIM; 295 #else 296 int ip6_gif_hlim = 0; 297 #endif 298 299 u_int32_t ip6_id = 0UL; 300 int ip6_keepfaith = 0; 301 time_t ip6_log_time = (time_t)0L; 302 303 /* icmp6 */ 304 int pmtu_expire = 60*10; 305 int pmtu_probe = 60*2; 306 307 /* raw IP6 parameters */ 308 /* 309 * Nominal space allocated to a raw ip socket. 310 */ 311 #define RIPV6SNDQ 8192 312 #define RIPV6RCVQ 8192 313 314 u_long rip6_sendspace = RIPV6SNDQ; 315 u_long rip6_recvspace = RIPV6RCVQ; 316 317 /* ICMPV6 parameters */ 318 int icmp6_rediraccept = 1; /* accept and process redirects */ 319 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 320 u_int icmp6errratelim = 1000; /* 1000usec = 1msec */ 321 322 #ifdef TCP6 323 /* TCP on IP6 parameters */ 324 int tcp6_sendspace = 1024 * 8; 325 int tcp6_recvspace = 1024 * 8; 326 int tcp6_mssdflt = TCP6_MSS; 327 int tcp6_rttdflt = TCP6TV_SRTTDFLT / PR_SLOWHZ; 328 int tcp6_do_rfc1323 = 1; 329 int tcp6_conntimeo = TCP6TV_KEEP_INIT; /* initial connection timeout */ 330 int tcp6_43maxseg = 0; 331 int tcp6_pmtu = 0; 332 333 /* 334 * Parameters for keepalive option. 335 * Connections for which SO_KEEPALIVE is set will be probed 336 * after being idle for a time of tcp6_keepidle (in units of PR_SLOWHZ). 337 * Starting at that time, the connection is probed at intervals 338 * of tcp6_keepintvl (same units) until a response is received 339 * or until tcp6_keepcnt probes have been made, at which time 340 * the connection is dropped. Note that a tcp6_keepidle value 341 * under 2 hours is nonconformant with RFC-1122, Internet Host Requirements. 342 */ 343 int tcp6_keepidle = TCP6TV_KEEP_IDLE; /* time before probing idle */ 344 int tcp6_keepintvl = TCP6TV_KEEPINTVL; /* interval betwn idle probes */ 345 int tcp6_keepcnt = TCP6TV_KEEPCNT; /* max idle probes */ 346 int tcp6_maxpersistidle = TCP6TV_KEEP_IDLE; /* max idle time in persist */ 347 348 #ifndef INET_SERVER 349 #define TCP6_LISTEN_HASH_SIZE 17 350 #define TCP6_CONN_HASH_SIZE 97 351 #define TCP6_SYN_HASH_SIZE 293 352 #define TCP6_SYN_BUCKET_SIZE 35 353 #else 354 #define TCP6_LISTEN_HASH_SIZE 97 355 #define TCP6_CONN_HASH_SIZE 9973 356 #define TCP6_SYN_HASH_SIZE 997 357 #define TCP6_SYN_BUCKET_SIZE 35 358 #endif 359 int tcp6_listen_hash_size = TCP6_LISTEN_HASH_SIZE; 360 int tcp6_conn_hash_size = TCP6_CONN_HASH_SIZE; 361 struct tcp6_hash_list tcp6_listen_hash[TCP6_LISTEN_HASH_SIZE], 362 tcp6_conn_hash[TCP6_CONN_HASH_SIZE]; 363 364 int tcp6_syn_cache_size = TCP6_SYN_HASH_SIZE; 365 int tcp6_syn_cache_limit = TCP6_SYN_HASH_SIZE*TCP6_SYN_BUCKET_SIZE; 366 int tcp6_syn_bucket_limit = 3*TCP6_SYN_BUCKET_SIZE; 367 struct syn_cache_head6 tcp6_syn_cache[TCP6_SYN_HASH_SIZE]; 368 struct syn_cache_head6 *tcp6_syn_cache_first; 369 int tcp6_syn_cache_interval = 8; /* runs timer every 4 seconds */ 370 int tcp6_syn_cache_timeo = TCP6TV_KEEP_INIT; 371 372 /* 373 * Parameters for computing a desirable data segment size 374 * given an upper bound (either interface MTU, or peer's MSS option)_. 375 * As applications tend to use a buffer size that is a multiple 376 * of kilobytes, try for something that divides evenly. However, 377 * do not round down too much. 378 * 379 * Round segment size down to a multiple of TCP6_ROUNDSIZE if this 380 * does not result in lowering by more than (size/TCP6_ROUNDFRAC). 381 * For example, round 536 to 512. Older versions of the system 382 * effectively used MCLBYTES (1K or 2K) as TCP6_ROUNDSIZE, with 383 * a value of 1 for TCP6_ROUNDFRAC (eliminating its effect). 384 * We round to a multiple of 256 for SLIP. 385 */ 386 #ifndef TCP6_ROUNDSIZE 387 #define TCP6_ROUNDSIZE 256 /* round to multiple of 256 */ 388 #endif 389 #ifndef TCP6_ROUNDFRAC 390 #define TCP6_ROUNDFRAC 10 /* round down at most N/10, or 10% */ 391 #endif 392 393 int tcp6_roundsize = TCP6_ROUNDSIZE; 394 int tcp6_roundfrac = TCP6_ROUNDFRAC; 395 #endif /*TCP6*/ 396 397 /* UDP on IP6 parameters */ 398 int udp6_sendspace = 9216; /* really max datagram size */ 399 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 400 /* 40 1K datagrams */ 401 402 #ifdef __FreeBSD__ 403 /* 404 * sysctl related items. 405 */ 406 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 407 "Internet6 Family"); 408 409 /* net.inet6 */ 410 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 411 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 412 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 413 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 414 #ifdef IPSEC 415 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 416 #endif /* IPSEC */ 417 418 /* net.inet6.ip6 */ 419 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 420 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 421 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 422 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 423 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 424 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 425 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 426 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 427 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 428 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 429 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 430 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 431 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 432 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 433 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 434 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 435 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 436 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 437 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 438 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 439 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 440 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 441 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 442 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 443 444 /* net.inet6.icmp6 */ 445 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 446 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 447 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 448 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 449 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 450 &icmp6stat, icmp6stat, ""); 451 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRRATELIMIT, 452 errratelimit, CTLFLAG_RW, &icmp6errratelim, 0, ""); 453 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 454 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 455 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 456 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 457 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 458 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 459 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 460 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 461 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 462 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 463 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PROXYALL, 464 nd6_proxyall, CTLFLAG_RW, &nd6_proxyall, 0, ""); 465 466 /* net.inet6.udp6 */ 467 SYSCTL_INT(_net_inet6_udp6, UDP6CTL_SENDMAX, 468 sendmax, CTLFLAG_RW, &udp6_sendspace, 0, ""); 469 SYSCTL_INT(_net_inet6_udp6, UDP6CTL_RECVSPACE, 470 recvspace, CTLFLAG_RW, &udp6_recvspace, 0, ""); 471 472 /* net.inet6.tcp6 */ 473 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MSSDFLT, 474 mssdflt, CTLFLAG_RW, &tcp6_mssdflt, 0, ""); 475 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_DO_RFC1323, 476 do_rfc1323, CTLFLAG_RW, &tcp6_do_rfc1323, 0, ""); 477 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPIDLE, 478 keepidle, CTLFLAG_RW, &tcp6_keepidle, 0, ""); 479 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPINTVL, 480 keepintvl, CTLFLAG_RW, &tcp6_keepintvl, 0, ""); 481 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPCNT, 482 keepcnt, CTLFLAG_RW, &tcp6_keepcnt, 0, ""); 483 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MAXPERSISTIDLE, 484 maxpersistidle, CTLFLAG_RW, &tcp6_maxpersistidle, 0, ""); 485 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SENDSPACE, 486 sendspace, CTLFLAG_RW, &tcp6_sendspace, 0, ""); 487 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_RECVSPACE, 488 recvspace, CTLFLAG_RW, &tcp6_recvspace, 0, ""); 489 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_CONNTIMEO, 490 conntimeo, CTLFLAG_RW, &tcp6_conntimeo, 0, ""); 491 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU, 492 pmtu, CTLFLAG_RW, &tcp6_pmtu, 0, ""); 493 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_EXPIRE, 494 pmtu_expire, CTLFLAG_RW, &pmtu_expire, 0, ""); 495 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_PROBE, 496 pmtu_probe, CTLFLAG_RW, &pmtu_probe, 0, ""); 497 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_43MAXSEG, 498 pmtu_43maxseg, CTLFLAG_RW, &tcp6_43maxseg, 0, ""); 499 SYSCTL_STRUCT(_net_inet6_tcp6, TCP6CTL_STATS, stats, CTLFLAG_RD, 500 &tcp6stat, tcp6stat, ""); 501 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_LIMIT, 502 syn_cache_limit, CTLFLAG_RW, &tcp6_syn_cache_limit, 0, ""); 503 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_BUCKET_LIMIT, 504 syn_bucket_limit, CTLFLAG_RW, &tcp6_syn_bucket_limit, 0, ""); 505 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_INTER, 506 syn_cache_interval, CTLFLAG_RW, &tcp6_syn_cache_interval, 0, ""); 507 508 #endif /* __FreeBSD__ */ 509
Indexes created Wed Sep 24 05:09:52 GMT 2025