in_proto.c revision 1.77
1 /* $NetBSD: in_proto.c,v 1.77 2006/10/10 21:49:14 dogcow 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 1.77 2006/10/10 21:49:14 dogcow 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_pcb.h> 89 #include <netinet/in_proto.h> 90 91 #ifdef INET6 92 #ifndef INET 93 #include <netinet/in.h> 94 #endif 95 #include <netinet/ip6.h> 96 #endif 97 98 #include <netinet/igmp_var.h> 99 #ifdef PIM 100 #include <netinet/pim_var.h> 101 #endif 102 #include <netinet/tcp.h> 103 #include <netinet/tcp_fsm.h> 104 #include <netinet/tcp_seq.h> 105 #include <netinet/tcp_timer.h> 106 #include <netinet/tcp_var.h> 107 #include <netinet/tcpip.h> 108 #include <netinet/tcp_debug.h> 109 #include <netinet/udp.h> 110 #include <netinet/udp_var.h> 111 #include <netinet/ip_encap.h> 112 /* 113 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 114 */ 115 116 #ifdef IPSEC 117 #include <netinet6/ipsec.h> 118 #include <netinet6/ah.h> 119 #ifdef IPSEC_ESP 120 #include <netinet6/esp.h> 121 #endif 122 #include <netinet6/ipcomp.h> 123 #endif /* IPSEC */ 124 125 #ifdef FAST_IPSEC 126 #include <netipsec/ipsec.h> 127 #include <netipsec/key.h> 128 #endif /* FAST_IPSEC */ 129 130 #ifdef TPIP 131 #include <netiso/tp_param.h> 132 #include <netiso/tp_var.h> 133 #endif /* TPIP */ 134 135 #ifdef EON 136 #include <netiso/eonvar.h> 137 #endif /* EON */ 138 139 #include "gre.h" 140 #if NGRE > 0 141 #include <netinet/ip_gre.h> 142 #endif 143 144 #include "carp.h" 145 #if NCARP > 0 146 #include <netinet/ip_carp.h> 147 #endif 148 149 #include "bridge.h" 150 151 DOMAIN_DEFINE(inetdomain); /* forward declare and add to link set */ 152 153 const struct protosw inetsw[] = { 154 { 0, &inetdomain, 0, 0, 155 0, ip_output, 0, 0, 156 0, 157 ip_init, 0, ip_slowtimo, ip_drain, 158 }, 159 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR|PR_PURGEIF, 160 udp_input, 0, udp_ctlinput, udp_ctloutput, 161 udp_usrreq, 162 udp_init, 0, 0, 0, 163 }, 164 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS|PR_PURGEIF, 165 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 166 tcp_usrreq, 167 tcp_init, 0, tcp_slowtimo, tcp_drain, 168 }, 169 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR|PR_PURGEIF, 170 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 171 rip_usrreq, 172 0, 0, 0, 0, 173 }, 174 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 175 icmp_input, rip_output, rip_ctlinput, rip_ctloutput, 176 rip_usrreq, 177 icmp_init, 0, 0, 0, 178 }, 179 #ifdef IPSEC 180 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 181 ah4_input, 0, ah4_ctlinput, 0, 182 0, 183 0, 0, 0, 0, 184 }, 185 #ifdef IPSEC_ESP 186 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 187 esp4_input, 188 0, esp4_ctlinput, 0, 189 0, 190 0, 0, 0, 0, 191 }, 192 #endif 193 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 194 ipcomp4_input, 195 0, 0, 0, 196 0, 197 0, 0, 0, 0, 198 }, 199 #endif /* IPSEC */ 200 #ifdef FAST_IPSEC 201 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 202 ipsec4_common_input, 0, ah4_ctlinput, 0, 203 0, 0, 0, 0, 0, 204 }, 205 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 206 ipsec4_common_input, 0, esp4_ctlinput, 0, 207 0, 208 0, 0, 0, 0, 209 }, 210 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 211 ipsec4_common_input, 0, 0, 0, 212 0, 213 0, 0, 0, 0, 214 }, 215 #endif /* FAST_IPSEC */ 216 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 217 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 218 rip_usrreq, /*XXX*/ 219 encap_init, 0, 0, 0, 220 }, 221 #ifdef INET6 222 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, 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 #endif /* INET6 */ 228 #if NBRIDGE > 0 229 { SOCK_RAW, &inetdomain, IPPROTO_ETHERIP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 230 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 231 rip_usrreq, 232 encap_init, 0, 0, 0, 233 }, 234 #endif 235 #if NCARP > 0 236 { SOCK_RAW, &inetdomain, IPPROTO_CARP, PR_ATOMIC|PR_ADDR, 237 carp_proto_input, rip_output, 0, rip_ctloutput, 238 rip_usrreq, 239 0, 0, 0, 0, 240 }, 241 #endif 242 #if NGRE > 0 243 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 244 gre_input, rip_output, rip_ctlinput, rip_ctloutput, 245 rip_usrreq, 246 0, 0, 0, 0, 247 }, 248 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 249 gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput, 250 rip_usrreq, 251 0, 0, 0, 0, 252 }, 253 #endif /* NGRE > 0 */ 254 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 255 igmp_input, rip_output, rip_ctlinput, rip_ctloutput, 256 rip_usrreq, 257 NULL, igmp_fasttimo, igmp_slowtimo, 0, 258 }, 259 #ifdef PIM 260 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 261 pim_input, rip_output, rip_ctlinput, rip_ctloutput, 262 rip_usrreq, 263 NULL, 0, 0, 0, 264 }, 265 #endif /* PIM */ 266 #ifdef TPIP 267 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 268 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 269 tp_usrreq, 270 tp_init, 0, tp_slowtimo, tp_drain, 271 }, 272 #endif /* TPIP */ 273 #ifdef ISO 274 /* EON (ISO CLNL over IP) */ 275 #ifdef EON 276 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 277 eoninput, 0, eonctlinput, 0, 278 0, 279 eonprotoinit, 0, 0, 0, 280 }, 281 #else 282 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 283 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 284 rip_usrreq, /*XXX*/ 285 encap_init, 0, 0, 0, 286 }, 287 #endif /* EON */ 288 #endif /* ISO */ 289 /* raw wildcard */ 290 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 291 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 292 rip_usrreq, 293 rip_init, 0, 0, 0, 294 }, 295 }; 296 297 extern struct ifqueue ipintrq; 298 299 struct domain inetdomain = { 300 PF_INET, "internet", 0, 0, 0, 301 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 302 rn_inithead, 32, sizeof(struct sockaddr_in), 0, 0, 303 { &ipintrq, NULL }, 304 { NULL }, 305 MOWNER_INIT("",""), 306 }; 307 308 u_char ip_protox[IPPROTO_MAX]; 309 310 int icmperrppslim = 100; /* 100pps */ 311
Indexes created Sat Sep 27 22:09:54 GMT 2025