in_proto.c revision 1.78
1 /* $NetBSD: in_proto.c,v 1.78 2006/11/13 05:13:42 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 1.78 2006/11/13 05:13:42 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 92 #ifdef INET6 93 #ifndef INET 94 #include <netinet/in.h> 95 #endif 96 #include <netinet/ip6.h> 97 #endif 98 99 #include <netinet/igmp_var.h> 100 #ifdef PIM 101 #include <netinet/pim_var.h> 102 #endif 103 #include <netinet/tcp.h> 104 #include <netinet/tcp_fsm.h> 105 #include <netinet/tcp_seq.h> 106 #include <netinet/tcp_timer.h> 107 #include <netinet/tcp_var.h> 108 #include <netinet/tcpip.h> 109 #include <netinet/tcp_debug.h> 110 #include <netinet/udp.h> 111 #include <netinet/udp_var.h> 112 #include <netinet/ip_encap.h> 113 /* 114 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 115 */ 116 117 #ifdef IPSEC 118 #include <netinet6/ipsec.h> 119 #include <netinet6/ah.h> 120 #ifdef IPSEC_ESP 121 #include <netinet6/esp.h> 122 #endif 123 #include <netinet6/ipcomp.h> 124 #endif /* IPSEC */ 125 126 #ifdef FAST_IPSEC 127 #include <netipsec/ipsec.h> 128 #include <netipsec/key.h> 129 #endif /* FAST_IPSEC */ 130 131 #ifdef TPIP 132 #include <netiso/tp_param.h> 133 #include <netiso/tp_var.h> 134 #endif /* TPIP */ 135 136 #ifdef EON 137 #include <netiso/eonvar.h> 138 #endif /* EON */ 139 140 #include "gre.h" 141 #if NGRE > 0 142 #include <netinet/ip_gre.h> 143 #endif 144 145 #include "carp.h" 146 #if NCARP > 0 147 #include <netinet/ip_carp.h> 148 #endif 149 150 #include "bridge.h" 151 152 DOMAIN_DEFINE(inetdomain); /* forward declare and add to link set */ 153 154 const struct protosw inetsw[] = { 155 { 0, &inetdomain, 0, 0, 156 0, ip_output, 0, 0, 157 0, 158 ip_init, 0, ip_slowtimo, ip_drain, 159 }, 160 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR|PR_PURGEIF, 161 udp_input, 0, udp_ctlinput, udp_ctloutput, 162 udp_usrreq, 163 udp_init, 0, 0, 0, 164 }, 165 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF, 166 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 167 tcp_usrreq, 168 tcp_init, 0, tcp_slowtimo, tcp_drain, 169 }, 170 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR|PR_PURGEIF, 171 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 172 rip_usrreq, 173 0, 0, 0, 0, 174 }, 175 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 176 icmp_input, rip_output, rip_ctlinput, rip_ctloutput, 177 rip_usrreq, 178 icmp_init, 0, 0, 0, 179 }, 180 #ifdef IPSEC 181 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 182 ah4_input, 0, ah4_ctlinput, 0, 183 0, 184 0, 0, 0, 0, 185 }, 186 #ifdef IPSEC_ESP 187 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 188 esp4_input, 189 0, esp4_ctlinput, 0, 190 0, 191 0, 0, 0, 0, 192 }, 193 #endif 194 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 195 ipcomp4_input, 196 0, 0, 0, 197 0, 198 0, 0, 0, 0, 199 }, 200 #endif /* IPSEC */ 201 #ifdef FAST_IPSEC 202 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 203 ipsec4_common_input, 0, ah4_ctlinput, 0, 204 0, 0, 0, 0, 0, 205 }, 206 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 207 ipsec4_common_input, 0, esp4_ctlinput, 0, 208 0, 209 0, 0, 0, 0, 210 }, 211 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 212 ipsec4_common_input, 0, 0, 0, 213 0, 214 0, 0, 0, 0, 215 }, 216 #endif /* FAST_IPSEC */ 217 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 218 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 219 rip_usrreq, /*XXX*/ 220 encap_init, 0, 0, 0, 221 }, 222 #ifdef INET6 223 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 224 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 225 rip_usrreq, /*XXX*/ 226 encap_init, 0, 0, 0, 227 }, 228 #endif /* INET6 */ 229 #if NBRIDGE > 0 230 { SOCK_RAW, &inetdomain, IPPROTO_ETHERIP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 231 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 232 rip_usrreq, 233 encap_init, 0, 0, 0, 234 }, 235 #endif 236 #if NCARP > 0 237 { SOCK_RAW, &inetdomain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR, 238 carp_proto_input, rip_output, 0, rip_ctloutput, 239 rip_usrreq, 240 0, 0, 0, 0, 241 }, 242 #endif 243 #if NGRE > 0 244 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 245 gre_input, rip_output, rip_ctlinput, rip_ctloutput, 246 rip_usrreq, 247 0, 0, 0, 0, 248 }, 249 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 250 gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput, 251 rip_usrreq, 252 0, 0, 0, 0, 253 }, 254 #endif /* NGRE > 0 */ 255 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 256 igmp_input, rip_output, rip_ctlinput, rip_ctloutput, 257 rip_usrreq, 258 NULL, igmp_fasttimo, igmp_slowtimo, 0, 259 }, 260 #ifdef PIM 261 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 262 pim_input, rip_output, rip_ctlinput, rip_ctloutput, 263 rip_usrreq, 264 NULL, 0, 0, 0, 265 }, 266 #endif /* PIM */ 267 #ifdef TPIP 268 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 269 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 270 tp_usrreq, 271 tp_init, 0, tp_slowtimo, tp_drain, 272 }, 273 #endif /* TPIP */ 274 #ifdef ISO 275 /* EON (ISO CLNL over IP) */ 276 #ifdef EON 277 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 278 eoninput, 0, eonctlinput, 0, 279 0, 280 eonprotoinit, 0, 0, 0, 281 }, 282 #else 283 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 284 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 285 rip_usrreq, /*XXX*/ 286 encap_init, 0, 0, 0, 287 }, 288 #endif /* EON */ 289 #endif /* ISO */ 290 /* raw wildcard */ 291 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 292 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 293 rip_usrreq, 294 rip_init, 0, 0, 0, 295 }, 296 }; 297 298 extern struct ifqueue ipintrq; 299 300 struct domain inetdomain = { 301 PF_INET, "internet", 0, 0, 0, 302 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 303 rn_inithead, 32, sizeof(struct sockaddr_in), 304 #ifdef IPSELSRC 305 in_domifattach, 306 in_domifdetach, 307 #else 308 NULL, 309 NULL, 310 #endif 311 { &ipintrq, NULL }, 312 { NULL }, 313 MOWNER_INIT("",""), 314 }; 315 316 u_char ip_protox[IPPROTO_MAX]; 317 318 int icmperrppslim = 100; /* 100pps */ 319
Indexes created Thu Sep 25 16:09:42 GMT 2025