in_proto.c revision 1.80
1 /* $NetBSD: in_proto.c,v 1.80 2006/12/09 05:33:04 dyoung 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. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)in_proto.c 8.2 (Berkeley) 2/9/95 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: in_proto.c,v 1.80 2006/12/09 05:33:04 dyoung Exp $"); 65 66 #include "opt_mrouting.h" 67 #include "opt_eon.h" /* ISO CLNL over IP */ 68 #include "opt_iso.h" /* ISO TP tunneled over IP */ 69 #include "opt_inet.h" 70 #include "opt_ipsec.h" 71 #include "opt_pim.h" 72 73 #include <sys/param.h> 74 #include <sys/socket.h> 75 #include <sys/protosw.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/ip.h> 86 #include <netinet/ip_var.h> 87 #include <netinet/ip_icmp.h> 88 #include <netinet/in_ifattach.h> 89 #include <netinet/in_pcb.h> 90 #include <netinet/in_proto.h> 91 #include <netinet/in_route.h> 92 93 #ifdef INET6 94 #ifndef INET 95 #include <netinet/in.h> 96 #endif 97 #include <netinet/ip6.h> 98 #endif 99 100 #include <netinet/igmp_var.h> 101 #ifdef PIM 102 #include <netinet/pim_var.h> 103 #endif 104 #include <netinet/tcp.h> 105 #include <netinet/tcp_fsm.h> 106 #include <netinet/tcp_seq.h> 107 #include <netinet/tcp_timer.h> 108 #include <netinet/tcp_var.h> 109 #include <netinet/tcpip.h> 110 #include <netinet/tcp_debug.h> 111 #include <netinet/udp.h> 112 #include <netinet/udp_var.h> 113 #include <netinet/ip_encap.h> 114 115 /* 116 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 117 */ 118 119 #ifdef IPSEC 120 #include <netinet6/ipsec.h> 121 #include <netinet6/ah.h> 122 #ifdef IPSEC_ESP 123 #include <netinet6/esp.h> 124 #endif 125 #include <netinet6/ipcomp.h> 126 #endif /* IPSEC */ 127 128 #ifdef FAST_IPSEC 129 #include <netipsec/ipsec.h> 130 #include <netipsec/key.h> 131 #endif /* FAST_IPSEC */ 132 133 #ifdef TPIP 134 #include <netiso/tp_param.h> 135 #include <netiso/tp_var.h> 136 #endif /* TPIP */ 137 138 #ifdef EON 139 #include <netiso/eonvar.h> 140 #endif /* EON */ 141 142 #include "gre.h" 143 #if NGRE > 0 144 #include <netinet/ip_gre.h> 145 #endif 146 147 #include "carp.h" 148 #if NCARP > 0 149 #include <netinet/ip_carp.h> 150 #endif 151 152 #include "etherip.h" 153 #if NETHERIP > 0 154 #include <netinet/ip_etherip.h> 155 #endif 156 157 DOMAIN_DEFINE(inetdomain); /* forward declare and add to link set */ 158 159 const struct protosw inetsw[] = { 160 { 0, &inetdomain, 0, 0, 161 0, ip_output, 0, 0, 162 0, 163 ip_init, 0, ip_slowtimo, ip_drain, 164 }, 165 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR|PR_PURGEIF, 166 udp_input, 0, udp_ctlinput, udp_ctloutput, 167 udp_usrreq, 168 udp_init, 0, 0, 0, 169 }, 170 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF, 171 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 172 tcp_usrreq, 173 tcp_init, 0, tcp_slowtimo, tcp_drain, 174 }, 175 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR|PR_PURGEIF, 176 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 177 rip_usrreq, 178 0, 0, 0, 0, 179 }, 180 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 181 icmp_input, rip_output, rip_ctlinput, rip_ctloutput, 182 rip_usrreq, 183 icmp_init, 0, 0, 0, 184 }, 185 #ifdef IPSEC 186 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 187 ah4_input, 0, ah4_ctlinput, 0, 188 0, 189 0, 0, 0, 0, 190 }, 191 #ifdef IPSEC_ESP 192 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 193 esp4_input, 194 0, esp4_ctlinput, 0, 195 0, 196 0, 0, 0, 0, 197 }, 198 #endif 199 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 200 ipcomp4_input, 201 0, 0, 0, 202 0, 203 0, 0, 0, 0, 204 }, 205 #endif /* IPSEC */ 206 #ifdef FAST_IPSEC 207 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 208 ipsec4_common_input, 0, ah4_ctlinput, 0, 209 0, 0, 0, 0, 0, 210 }, 211 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 212 ipsec4_common_input, 0, esp4_ctlinput, 0, 213 0, 214 0, 0, 0, 0, 215 }, 216 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 217 ipsec4_common_input, 0, 0, 0, 218 0, 219 0, 0, 0, 0, 220 }, 221 #endif /* FAST_IPSEC */ 222 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 223 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 224 rip_usrreq, /*XXX*/ 225 encap_init, 0, 0, 0, 226 }, 227 #ifdef INET6 228 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 229 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 230 rip_usrreq, /*XXX*/ 231 encap_init, 0, 0, 0, 232 }, 233 #endif /* INET6 */ 234 #if NETHERIP > 0 235 { SOCK_RAW, &inetdomain, IPPROTO_ETHERIP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 236 ip_etherip_input, rip_output, rip_ctlinput, rip_ctloutput, 237 rip_usrreq, 238 0, 0, 0, 0, 239 }, 240 #endif 241 #if NCARP > 0 242 { SOCK_RAW, &inetdomain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR, 243 carp_proto_input, rip_output, 0, rip_ctloutput, 244 rip_usrreq, 245 0, 0, 0, 0, 246 }, 247 #endif 248 #if NGRE > 0 249 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 250 gre_input, rip_output, rip_ctlinput, rip_ctloutput, 251 rip_usrreq, 252 0, 0, 0, 0, 253 }, 254 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 255 gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput, 256 rip_usrreq, 257 0, 0, 0, 0, 258 }, 259 #endif /* NGRE > 0 */ 260 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 261 igmp_input, rip_output, rip_ctlinput, rip_ctloutput, 262 rip_usrreq, 263 NULL, igmp_fasttimo, igmp_slowtimo, 0, 264 }, 265 #ifdef PIM 266 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 267 pim_input, rip_output, rip_ctlinput, rip_ctloutput, 268 rip_usrreq, 269 NULL, 0, 0, 0, 270 }, 271 #endif /* PIM */ 272 #ifdef TPIP 273 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 274 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 275 tp_usrreq, 276 tp_init, 0, tp_slowtimo, tp_drain, 277 }, 278 #endif /* TPIP */ 279 #ifdef ISO 280 /* EON (ISO CLNL over IP) */ 281 #ifdef EON 282 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 283 eoninput, 0, eonctlinput, 0, 284 0, 285 eonprotoinit, 0, 0, 0, 286 }, 287 #else 288 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 289 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 290 rip_usrreq, /*XXX*/ 291 encap_init, 0, 0, 0, 292 }, 293 #endif /* EON */ 294 #endif /* ISO */ 295 /* raw wildcard */ 296 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 297 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 298 rip_usrreq, 299 rip_init, 0, 0, 0, 300 }, 301 }; 302 303 extern struct ifqueue ipintrq; 304 305 struct domain inetdomain = { 306 .dom_family = PF_INET, .dom_name = "internet", .dom_init = NULL, 307 .dom_externalize = NULL, .dom_dispose = NULL, 308 .dom_protosw = inetsw, 309 .dom_protoswNPROTOSW = &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 310 .dom_rtattach = rn_inithead, 311 .dom_rtoffset = 32, .dom_maxrtkey = sizeof(struct sockaddr_in), 312 #ifdef IPSELSRC 313 .dom_ifattach = in_domifattach, 314 .dom_ifdetach = in_domifdetach, 315 #else 316 .dom_ifattach = NULL, 317 .dom_ifdetach = NULL, 318 #endif 319 .dom_ifqueues = { &ipintrq, NULL }, 320 .dom_link = { NULL }, 321 .dom_mowner = MOWNER_INIT("",""), 322 .dom_rtcache = in_rtcache, 323 .dom_rtflush = in_rtflush, 324 .dom_rtflushall = in_rtflushall 325 }; 326 327 u_char ip_protox[IPPROTO_MAX]; 328 329 int icmperrppslim = 100; /* 100pps */ 330
Indexes created Tue Sep 23 14:10:03 GMT 2025