in6_proto.c revision 1.3
1 /* $NetBSD: in6_proto.c,v 1.3 1999/07/03 21:30:18 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 #endif 70 71 #include <sys/param.h> 72 #include <sys/socket.h> 73 #include <sys/protosw.h> 74 #include <sys/kernel.h> 75 #include <sys/domain.h> 76 #include <sys/mbuf.h> 77 78 #include <net/if.h> 79 #include <net/radix.h> 80 #include <net/route.h> 81 82 #include <netinet/in.h> 83 #include <netinet/in_systm.h> 84 #include <netinet/in_var.h> 85 #include <netinet6/in6_systm.h> 86 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || (defined(__NetBSD__) && !defined(TCP6)) 87 #include <netinet/ip.h> 88 #include <netinet/ip_var.h> 89 #endif 90 #if defined(__NetBSD__) && !defined(TCP6) 91 #include <netinet/in_pcb.h> 92 #endif 93 #include <netinet6/ip6.h> 94 #include <netinet6/ip6_var.h> 95 #include <netinet6/icmp6.h> 96 #if !defined(__FreeBSD__) || __FreeBSD__ < 3 97 #include <netinet6/in6_pcb.h> 98 #endif 99 100 #if (defined(__FreeBSD__) && __FreeBSD__ >= 3) 101 #include <netinet/tcp.h> 102 #include <netinet/tcp_timer.h> 103 #include <netinet/tcp_var.h> 104 #include <netinet/udp.h> 105 #include <netinet/udp_var.h> 106 #else 107 #if defined(__NetBSD__) && !defined(TCP6) 108 #include <netinet/tcp.h> 109 #include <netinet/tcp_fsm.h> 110 #include <netinet/tcp_seq.h> 111 #include <netinet/tcp_timer.h> 112 #include <netinet/tcp_var.h> 113 #include <netinet/tcpip.h> 114 #include <netinet/tcp_debug.h> 115 #else 116 #include <netinet6/tcp6.h> 117 #include <netinet6/tcp6_fsm.h> 118 #include <netinet6/tcp6_seq.h> 119 #include <netinet6/tcp6_timer.h> 120 #include <netinet6/tcp6_var.h> 121 #endif 122 #endif 123 124 #include <netinet6/udp6.h> 125 #include <netinet6/udp6_var.h> 126 127 #include <netinet6/pim6_var.h> 128 129 #include <netinet6/nd6.h> 130 131 #ifdef IPSEC 132 #include <netinet6/ah.h> 133 #ifdef IPSEC_ESP 134 #include <netinet6/esp.h> 135 #endif 136 #include <netinet6/ipcomp.h> 137 #endif /*IPSEC*/ 138 139 #include <netinet6/ip6protosw.h> 140 141 #include "gif.h" 142 #if NGIF > 0 143 #include <netinet6/in6_gif.h> 144 #endif 145 146 #define offsetof(type, member) ((size_t)(&((type *)0)->member)) 147 148 /* 149 * TCP/IP protocol family: IP6, ICMP6, UDP, TCP. 150 */ 151 152 extern struct domain inet6domain; 153 154 struct ip6protosw inet6sw[] = { 155 { 0, &inet6domain, IPPROTO_IPV6, 0, 156 0, 0, 0, 0, 157 0, 158 ip6_init, 0, frag6_slowtimo, frag6_drain, ip6_sysctl 159 }, 160 { SOCK_DGRAM, &inet6domain, IPPROTO_UDP, PR_ATOMIC | PR_ADDR, 161 udp6_input, 0, udp6_ctlinput, ip6_ctloutput, 162 udp6_usrreq, 163 udp6_init, 0, 0, 0, udp6_sysctl 164 }, 165 #ifdef TCP6 166 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN, 167 tcp6_input, 0, tcp6_ctlinput, tcp6_ctloutput, 168 tcp6_usrreq, 169 tcp6_init, tcp6_fasttimo, tcp6_slowtimo, tcp6_drain, tcp6_sysctl 170 }, 171 #else 172 { SOCK_STREAM, &inet6domain, IPPROTO_TCP, PR_CONNREQUIRED | PR_WANTRCVD | PR_LISTEN, 173 tcp6_input, 0, tcp6_ctlinput, tcp_ctloutput, 174 tcp_usrreq, 175 tcp_init, tcp_fasttimo, tcp_slowtimo, tcp_drain, tcp_sysctl 176 }, 177 #endif 178 { SOCK_RAW, &inet6domain, IPPROTO_RAW, PR_ATOMIC | PR_ADDR, 179 rip6_input, rip6_output, 0, rip6_ctloutput, 180 rip6_usrreq, 181 0, 0, 0, 0, 0 182 }, 183 { SOCK_RAW, &inet6domain, IPPROTO_ICMPV6, PR_ATOMIC | PR_ADDR, 184 icmp6_input, rip6_output, 0, rip6_ctloutput, 185 rip6_usrreq, 186 icmp6_init, icmp6_fasttimo, 0, 0, icmp6_sysctl 187 }, 188 { SOCK_RAW, &inet6domain, IPPROTO_DSTOPTS,PR_ATOMIC|PR_ADDR, 189 dest6_input, 0, 0, 0, 190 0, 191 0, 0, 0, 0, 192 }, 193 { SOCK_RAW, &inet6domain, IPPROTO_ROUTING,PR_ATOMIC|PR_ADDR, 194 route6_input, 0, 0, 0, 195 0, 196 0, 0, 0, 0, 197 }, 198 { SOCK_RAW, &inet6domain, IPPROTO_FRAGMENT,PR_ATOMIC|PR_ADDR, 199 frag6_input, 0, 0, 0, 200 0, 201 0, 0, 0, 0, 202 }, 203 #ifdef IPSEC 204 { SOCK_RAW, &inet6domain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 205 ah6_input, 0, 0, 0, 206 0, 207 0, 0, 0, 0, ipsec6_sysctl 208 }, 209 #ifdef IPSEC_ESP 210 { SOCK_RAW, &inet6domain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 211 esp6_input, 0, 0, 0, 212 0, 213 0, 0, 0, 0, ipsec6_sysctl 214 }, 215 #endif 216 { SOCK_RAW, &inet6domain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 217 ipcomp6_input, 0, 0, 0, 218 0, 219 0, 0, 0, 0, ipsec6_sysctl 220 }, 221 #endif /* IPSEC */ 222 #if NGIF > 0 223 { SOCK_RAW, &inet6domain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR, 224 in6_gif_input,0, 0, 0, 225 0, 226 0, 0, 0, 0, 227 }, 228 #ifdef INET6 229 { SOCK_RAW, &inet6domain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR, 230 in6_gif_input,0, 0, 0, 231 0, 232 0, 0, 0, 0, 233 }, 234 #endif /* INET6 */ 235 #endif /* GIF */ 236 { SOCK_RAW, &inet6domain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR, 237 pim6_input, rip6_output, 0, rip6_ctloutput, 238 rip6_usrreq, 239 0, 0, 0, 0, 240 }, 241 /* raw wildcard */ 242 { SOCK_RAW, &inet6domain, 0, PR_ATOMIC | PR_ADDR, 243 rip6_input, rip6_output, 0, rip6_ctloutput, 244 rip6_usrreq, 245 rip6_init, 0, 0, 0, 246 }, 247 }; 248 249 struct domain inet6domain = 250 { AF_INET6, "internet6", 0, 0, 0, 251 (struct protosw *)inet6sw, 252 (struct protosw *)&inet6sw[sizeof(inet6sw)/sizeof(inet6sw[0])], 0, 253 rn_inithead, offsetof(struct sockaddr_in6, sin6_addr) << 3, 254 sizeof(struct sockaddr_in6) }; 255 256 #ifdef __FreeBSD__ 257 DOMAIN_SET(inet6); 258 #endif 259 260 /* 261 * Internet configuration info 262 */ 263 #ifndef IPV6FORWARDING 264 #ifdef GATEWAY6 265 #define IPV6FORWARDING 1 /* forward IP6 packets not for us */ 266 #else 267 #define IPV6FORWARDING 0 /* don't forward IP6 packets not for us */ 268 #endif /* GATEWAY6 */ 269 #endif /* !IPV6FORWARDING */ 270 271 #ifndef IPV6_SENDREDIRECTS 272 #define IPV6_SENDREDIRECTS 1 273 #endif 274 275 int ip6_forwarding = IPV6FORWARDING; /* act as router? */ 276 int ip6_sendredirects = IPV6_SENDREDIRECTS; 277 int ip6_defhlim = IPV6_DEFHLIM; 278 int ip6_defmcasthlim = IPV6_DEFAULT_MULTICAST_HOPS; 279 int ip6_accept_rtadv = 0; /* "IPV6FORWARDING ? 0 : 1" is dangerous */ 280 int ip6_maxfragpackets = 200; 281 int ip6_log_interval = 5; 282 int ip6_hdrnestlimit = 50; /* appropriate? */ 283 int ip6_dad_count = 1; /* DupAddrDetectionTransmits */ 284 u_int32_t ip6_flow_seq; 285 int ip6_auto_flowlabel = 1; 286 #if NGIF > 0 287 int ip6_gif_hlim = GIF_HLIM; 288 #else 289 int ip6_gif_hlim = 0; 290 #endif 291 292 u_long ip6_id = 0UL; 293 int ip6_keepfaith = 0; 294 time_t ip6_log_time = (time_t)0L; 295 296 /* icmp6 */ 297 int pmtu_expire = 60*10; 298 int pmtu_probe = 60*2; 299 300 /* raw IP6 parameters */ 301 /* 302 * Nominal space allocated to a raw ip socket. 303 */ 304 #define RIPV6SNDQ 8192 305 #define RIPV6RCVQ 8192 306 307 u_long rip6_sendspace = RIPV6SNDQ; 308 u_long rip6_recvspace = RIPV6RCVQ; 309 310 /* ICMPV6 parameters */ 311 int icmp6_rediraccept = 1; /* accept and process redirects */ 312 int icmp6_redirtimeout = 10 * 60; /* 10 minutes */ 313 u_int icmp6errratelim = 1000; /* 1000usec = 1msec */ 314 315 #ifdef TCP6 316 /* TCP on IP6 parameters */ 317 int tcp6_sendspace = 1024 * 8; 318 int tcp6_recvspace = 1024 * 8; 319 int tcp6_mssdflt = TCP6_MSS; 320 int tcp6_rttdflt = TCP6TV_SRTTDFLT / PR_SLOWHZ; 321 int tcp6_do_rfc1323 = 1; 322 int tcp6_conntimeo = TCP6TV_KEEP_INIT; /* initial connection timeout */ 323 int tcp6_43maxseg = 0; 324 int tcp6_pmtu = 0; 325 326 /* 327 * Parameters for keepalive option. 328 * Connections for which SO_KEEPALIVE is set will be probed 329 * after being idle for a time of tcp6_keepidle (in units of PR_SLOWHZ). 330 * Starting at that time, the connection is probed at intervals 331 * of tcp6_keepintvl (same units) until a response is received 332 * or until tcp6_keepcnt probes have been made, at which time 333 * the connection is dropped. Note that a tcp6_keepidle value 334 * under 2 hours is nonconformant with RFC-1122, Internet Host Requirements. 335 */ 336 int tcp6_keepidle = TCP6TV_KEEP_IDLE; /* time before probing idle */ 337 int tcp6_keepintvl = TCP6TV_KEEPINTVL; /* interval betwn idle probes */ 338 int tcp6_keepcnt = TCP6TV_KEEPCNT; /* max idle probes */ 339 int tcp6_maxpersistidle = TCP6TV_KEEP_IDLE; /* max idle time in persist */ 340 341 #ifndef INET_SERVER 342 #define TCP6_LISTEN_HASH_SIZE 17 343 #define TCP6_CONN_HASH_SIZE 97 344 #define TCP6_SYN_HASH_SIZE 293 345 #define TCP6_SYN_BUCKET_SIZE 35 346 #else 347 #define TCP6_LISTEN_HASH_SIZE 97 348 #define TCP6_CONN_HASH_SIZE 9973 349 #define TCP6_SYN_HASH_SIZE 997 350 #define TCP6_SYN_BUCKET_SIZE 35 351 #endif 352 int tcp6_listen_hash_size = TCP6_LISTEN_HASH_SIZE; 353 int tcp6_conn_hash_size = TCP6_CONN_HASH_SIZE; 354 struct tcp6_hash_list tcp6_listen_hash[TCP6_LISTEN_HASH_SIZE], 355 tcp6_conn_hash[TCP6_CONN_HASH_SIZE]; 356 357 int tcp6_syn_cache_size = TCP6_SYN_HASH_SIZE; 358 int tcp6_syn_cache_limit = TCP6_SYN_HASH_SIZE*TCP6_SYN_BUCKET_SIZE; 359 int tcp6_syn_bucket_limit = 3*TCP6_SYN_BUCKET_SIZE; 360 struct syn_cache_head6 tcp6_syn_cache[TCP6_SYN_HASH_SIZE]; 361 struct syn_cache_head6 *tcp6_syn_cache_first; 362 int tcp6_syn_cache_interval = 8; /* runs timer every 4 seconds */ 363 int tcp6_syn_cache_timeo = TCP6TV_KEEP_INIT; 364 365 /* 366 * Parameters for computing a desirable data segment size 367 * given an upper bound (either interface MTU, or peer's MSS option)_. 368 * As applications tend to use a buffer size that is a multiple 369 * of kilobytes, try for something that divides evenly. However, 370 * do not round down too much. 371 * 372 * Round segment size down to a multiple of TCP6_ROUNDSIZE if this 373 * does not result in lowering by more than (size/TCP6_ROUNDFRAC). 374 * For example, round 536 to 512. Older versions of the system 375 * effectively used MCLBYTES (1K or 2K) as TCP6_ROUNDSIZE, with 376 * a value of 1 for TCP6_ROUNDFRAC (eliminating its effect). 377 * We round to a multiple of 256 for SLIP. 378 */ 379 #ifndef TCP6_ROUNDSIZE 380 #define TCP6_ROUNDSIZE 256 /* round to multiple of 256 */ 381 #endif 382 #ifndef TCP6_ROUNDFRAC 383 #define TCP6_ROUNDFRAC 10 /* round down at most N/10, or 10% */ 384 #endif 385 386 int tcp6_roundsize = TCP6_ROUNDSIZE; 387 int tcp6_roundfrac = TCP6_ROUNDFRAC; 388 #endif /*TCP6*/ 389 390 /* UDP on IP6 parameters */ 391 int udp6_sendspace = 9216; /* really max datagram size */ 392 int udp6_recvspace = 40 * (1024 + sizeof(struct sockaddr_in6)); 393 /* 40 1K datagrams */ 394 395 #ifdef __FreeBSD__ 396 /* 397 * sysctl related items. 398 */ 399 SYSCTL_NODE(_net, PF_INET6, inet6, CTLFLAG_RW, 0, 400 "Internet6 Family"); 401 402 /* net.inet6 */ 403 SYSCTL_NODE(_net_inet6, IPPROTO_IPV6, ip6, CTLFLAG_RW, 0, "IP6"); 404 SYSCTL_NODE(_net_inet6, IPPROTO_ICMPV6, icmp6, CTLFLAG_RW, 0, "ICMP6"); 405 SYSCTL_NODE(_net_inet6, IPPROTO_UDP, udp6, CTLFLAG_RW, 0, "UDP6"); 406 SYSCTL_NODE(_net_inet6, IPPROTO_TCP, tcp6, CTLFLAG_RW, 0, "TCP6"); 407 #ifdef IPSEC 408 SYSCTL_NODE(_net_inet6, IPPROTO_ESP, ipsec6, CTLFLAG_RW, 0, "IPSEC6"); 409 #endif /* IPSEC */ 410 411 /* net.inet6.ip6 */ 412 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_FORWARDING, 413 forwarding, CTLFLAG_RW, &ip6_forwarding, 0, ""); 414 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_SENDREDIRECTS, 415 redirect, CTLFLAG_RW, &ip6_sendredirects, 0, ""); 416 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFHLIM, 417 hlim, CTLFLAG_RW, &ip6_defhlim, 0, ""); 418 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_MAXFRAGPACKETS, 419 maxfragpackets, CTLFLAG_RW, &ip6_maxfragpackets, 0, ""); 420 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_ACCEPT_RTADV, 421 accept_rtadv, CTLFLAG_RW, &ip6_accept_rtadv, 0, ""); 422 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_KEEPFAITH, 423 keepfaith, CTLFLAG_RW, &ip6_keepfaith, 0, ""); 424 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_LOG_INTERVAL, 425 log_interval, CTLFLAG_RW, &ip6_log_interval, 0, ""); 426 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_HDRNESTLIMIT, 427 hdrnestlimit, CTLFLAG_RW, &ip6_hdrnestlimit, 0, ""); 428 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DAD_COUNT, 429 dad_count, CTLFLAG_RW, &ip6_dad_count, 0, ""); 430 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_AUTO_FLOWLABEL, 431 auto_flowlabel, CTLFLAG_RW, &ip6_auto_flowlabel, 0, ""); 432 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_DEFMCASTHLIM, 433 defmcasthlim, CTLFLAG_RW, &ip6_defmcasthlim, 0, ""); 434 SYSCTL_INT(_net_inet6_ip6, IPV6CTL_GIF_HLIM, 435 gifhlim, CTLFLAG_RW, &ip6_gif_hlim, 0, ""); 436 437 /* net.inet6.icmp6 */ 438 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRACCEPT, 439 rediraccept, CTLFLAG_RW, &icmp6_rediraccept, 0, ""); 440 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_REDIRTIMEOUT, 441 redirtimeout, CTLFLAG_RW, &icmp6_redirtimeout, 0, ""); 442 SYSCTL_STRUCT(_net_inet6_icmp6, ICMPV6CTL_STATS, stats, CTLFLAG_RD, 443 &icmp6stat, icmp6stat, ""); 444 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ERRRATELIMIT, 445 errratelimit, CTLFLAG_RW, &icmp6errratelim, 0, ""); 446 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PRUNE, 447 nd6_prune, CTLFLAG_RW, &nd6_prune, 0, ""); 448 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_DELAY, 449 nd6_delay, CTLFLAG_RW, &nd6_delay, 0, ""); 450 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_UMAXTRIES, 451 nd6_umaxtries, CTLFLAG_RW, &nd6_umaxtries, 0, ""); 452 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_MMAXTRIES, 453 nd6_mmaxtries, CTLFLAG_RW, &nd6_mmaxtries, 0, ""); 454 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_USELOOPBACK, 455 nd6_useloopback, CTLFLAG_RW, &nd6_useloopback, 0, ""); 456 SYSCTL_INT(_net_inet6_icmp6, ICMPV6CTL_ND6_PROXYALL, 457 nd6_proxyall, CTLFLAG_RW, &nd6_proxyall, 0, ""); 458 459 /* net.inet6.udp6 */ 460 SYSCTL_INT(_net_inet6_udp6, UDP6CTL_SENDMAX, 461 sendmax, CTLFLAG_RW, &udp6_sendspace, 0, ""); 462 SYSCTL_INT(_net_inet6_udp6, UDP6CTL_RECVSPACE, 463 recvspace, CTLFLAG_RW, &udp6_recvspace, 0, ""); 464 465 /* net.inet6.tcp6 */ 466 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MSSDFLT, 467 mssdflt, CTLFLAG_RW, &tcp6_mssdflt, 0, ""); 468 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_DO_RFC1323, 469 do_rfc1323, CTLFLAG_RW, &tcp6_do_rfc1323, 0, ""); 470 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPIDLE, 471 keepidle, CTLFLAG_RW, &tcp6_keepidle, 0, ""); 472 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPINTVL, 473 keepintvl, CTLFLAG_RW, &tcp6_keepintvl, 0, ""); 474 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_KEEPCNT, 475 keepcnt, CTLFLAG_RW, &tcp6_keepcnt, 0, ""); 476 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_MAXPERSISTIDLE, 477 maxpersistidle, CTLFLAG_RW, &tcp6_maxpersistidle, 0, ""); 478 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SENDSPACE, 479 sendspace, CTLFLAG_RW, &tcp6_sendspace, 0, ""); 480 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_RECVSPACE, 481 recvspace, CTLFLAG_RW, &tcp6_recvspace, 0, ""); 482 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_CONNTIMEO, 483 conntimeo, CTLFLAG_RW, &tcp6_conntimeo, 0, ""); 484 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU, 485 pmtu, CTLFLAG_RW, &tcp6_pmtu, 0, ""); 486 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_EXPIRE, 487 pmtu_expire, CTLFLAG_RW, &pmtu_expire, 0, ""); 488 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_PMTU_PROBE, 489 pmtu_probe, CTLFLAG_RW, &pmtu_probe, 0, ""); 490 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_43MAXSEG, 491 pmtu_43maxseg, CTLFLAG_RW, &tcp6_43maxseg, 0, ""); 492 SYSCTL_STRUCT(_net_inet6_tcp6, TCP6CTL_STATS, stats, CTLFLAG_RD, 493 &tcp6stat, tcp6stat, ""); 494 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_LIMIT, 495 syn_cache_limit, CTLFLAG_RW, &tcp6_syn_cache_limit, 0, ""); 496 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_BUCKET_LIMIT, 497 syn_bucket_limit, CTLFLAG_RW, &tcp6_syn_bucket_limit, 0, ""); 498 SYSCTL_INT(_net_inet6_tcp6, TCP6CTL_SYN_CACHE_INTER, 499 syn_cache_interval, CTLFLAG_RW, &tcp6_syn_cache_interval, 0, ""); 500 501 #endif /* __FreeBSD__ */ 502
Indexes created Tue Sep 23 14:10:03 GMT 2025