in_proto.c revision 1.72
1 /* $NetBSD: in_proto.c,v 1.72 2006/05/18 09:05:51 liamjfoy 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 1.72 2006/05/18 09:05:51 liamjfoy 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_ns.h" /* NSIP: XNS tunneled over IP */ 70 #include "opt_inet.h" 71 #include "opt_ipsec.h" 72 #include "opt_pim.h" 73 74 #include <sys/param.h> 75 #include <sys/socket.h> 76 #include <sys/protosw.h> 77 #include <sys/domain.h> 78 #include <sys/mbuf.h> 79 80 #include <net/if.h> 81 #include <net/radix.h> 82 #include <net/route.h> 83 84 #include <netinet/in.h> 85 #include <netinet/in_systm.h> 86 #include <netinet/ip.h> 87 #include <netinet/ip_var.h> 88 #include <netinet/ip_icmp.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 NSIP 132 #include <netns/ns_var.h> 133 #include <netns/idp_var.h> 134 #endif /* NSIP */ 135 136 #ifdef TPIP 137 #include <netiso/tp_param.h> 138 #include <netiso/tp_var.h> 139 #endif /* TPIP */ 140 141 #ifdef EON 142 #include <netiso/eonvar.h> 143 #endif /* EON */ 144 145 #include "gre.h" 146 #if NGRE > 0 147 #include <netinet/ip_gre.h> 148 #endif 149 150 #include "carp.h" 151 #if NCARP > 0 152 #include <netinet/ip_carp.h> 153 #endif 154 155 #include "bridge.h" 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, NULL 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, NULL 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, NULL 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, NULL 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, NULL 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, NULL 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, NULL 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, 210 0, 0, 0, 0, NULL 211 }, 212 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 213 ipsec4_common_input, 0, esp4_ctlinput, 0, 214 0, 215 0, 0, 0, 0, NULL 216 }, 217 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 218 ipsec4_common_input, 0, 0, 0, 219 0, 220 0, 0, 0, 0, NULL 221 }, 222 #endif /* FAST_IPSEC */ 223 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, 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 #ifdef INET6 229 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 230 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 231 rip_usrreq, /*XXX*/ 232 encap_init, 0, 0, 0, 233 }, 234 #endif /* INET6 */ 235 #if NBRIDGE > 0 236 { SOCK_RAW, &inetdomain, IPPROTO_ETHERIP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 237 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 238 rip_usrreq, 239 encap_init, 0, 0, 0, 240 }, 241 #endif 242 #if NCARP > 0 243 { SOCK_RAW, &inetdomain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR, 244 carp_proto_input, rip_output, 0, rip_ctloutput, 245 rip_usrreq, 246 0, 0, 0, 0, NULL, 247 }, 248 #endif 249 #if NGRE > 0 250 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 251 gre_input, rip_output, rip_ctlinput, rip_ctloutput, 252 rip_usrreq, 253 0, 0, 0, 0, 254 }, 255 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 256 gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput, 257 rip_usrreq, 258 0, 0, 0, 0, 259 }, 260 #endif /* NGRE > 0 */ 261 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 262 igmp_input, rip_output, rip_ctlinput, rip_ctloutput, 263 rip_usrreq, 264 NULL, igmp_fasttimo, igmp_slowtimo, 0, 265 }, 266 #ifdef PIM 267 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 268 pim_input, rip_output, rip_ctlinput, rip_ctloutput, 269 rip_usrreq, 270 NULL, 0, 0, 0, 271 }, 272 #endif /* PIM */ 273 #ifdef TPIP 274 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 275 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 276 tp_usrreq, 277 tp_init, 0, tp_slowtimo, tp_drain, 278 }, 279 #endif /* TPIP */ 280 #ifdef ISO 281 /* EON (ISO CLNL over IP) */ 282 #ifdef EON 283 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 284 eoninput, 0, eonctlinput, 0, 285 0, 286 eonprotoinit, 0, 0, 0, 287 }, 288 #else 289 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 290 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 291 rip_usrreq, /*XXX*/ 292 encap_init, 0, 0, 0, 293 }, 294 #endif /* EON */ 295 #endif /* ISO */ 296 #ifdef NSIP 297 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 298 idpip_input, NULL, nsip_ctlinput, 0, 299 rip_usrreq, 300 0, 0, 0, 0, 301 }, 302 #endif /* NSIP */ 303 /* raw wildcard */ 304 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 305 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 306 rip_usrreq, 307 rip_init, 0, 0, 0, 308 }, 309 }; 310 311 struct domain inetdomain = 312 { PF_INET, "internet", 0, 0, 0, 313 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 314 rn_inithead, 32, sizeof(struct sockaddr_in) }; 315 316 u_char ip_protox[IPPROTO_MAX]; 317 318 int icmperrppslim = 100; /* 100pps */ 319
Indexes created Tue Sep 23 14:10:03 GMT 2025