in_proto.c revision 1.65
1 /* $NetBSD: in_proto.c,v 1.65 2004/09/04 23:30:07 manu 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 1.65 2004/09/04 23:30:07 manu 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 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 NSIP 131 #include <netns/ns_var.h> 132 #include <netns/idp_var.h> 133 #endif /* NSIP */ 134 135 #ifdef TPIP 136 #include <netiso/tp_param.h> 137 #include <netiso/tp_var.h> 138 #endif /* TPIP */ 139 140 #ifdef EON 141 #include <netiso/eonvar.h> 142 #endif /* EON */ 143 144 #include "gre.h" 145 #if NGRE > 0 146 #include <netinet/ip_gre.h> 147 #endif 148 149 const struct protosw inetsw[] = { 150 { 0, &inetdomain, 0, 0, 151 0, ip_output, 0, 0, 152 0, 153 ip_init, 0, ip_slowtimo, ip_drain, NULL 154 }, 155 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 156 udp_input, 0, udp_ctlinput, ip_ctloutput, 157 udp_usrreq, 158 udp_init, 0, 0, 0, NULL 159 }, 160 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS, 161 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 162 tcp_usrreq, 163 tcp_init, 0, tcp_slowtimo, tcp_drain, NULL 164 }, 165 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 166 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 167 rip_usrreq, 168 0, 0, 0, 0, 169 }, 170 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 171 icmp_input, rip_output, rip_ctlinput, rip_ctloutput, 172 rip_usrreq, 173 icmp_init, 0, 0, 0, NULL 174 }, 175 #ifdef IPSEC 176 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 177 ah4_input, 0, ah4_ctlinput, 0, 178 0, 179 0, 0, 0, 0, NULL 180 }, 181 #ifdef IPSEC_ESP 182 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 183 esp4_input, 184 0, esp4_ctlinput, 0, 185 0, 186 0, 0, 0, 0, NULL 187 }, 188 #endif 189 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 190 ipcomp4_input, 191 0, 0, 0, 192 0, 193 0, 0, 0, 0, NULL 194 }, 195 #endif /* IPSEC */ 196 #ifdef FAST_IPSEC 197 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 198 ipsec4_common_input, 0, ah4_ctlinput, 0, 199 0, 200 0, 0, 0, 0, NULL 201 }, 202 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 203 ipsec4_common_input, 0, esp4_ctlinput, 0, 204 0, 205 0, 0, 0, 0, NULL 206 }, 207 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 208 ipsec4_common_input, 0, 0, 0, 209 0, 210 0, 0, 0, 0, NULL 211 }, 212 #endif /* FAST_IPSEC */ 213 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 214 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 215 rip_usrreq, /*XXX*/ 216 encap_init, 0, 0, 0, 217 }, 218 #ifdef INET6 219 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 220 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 221 rip_usrreq, /*XXX*/ 222 encap_init, 0, 0, 0, 223 }, 224 #endif /* INET6 */ 225 #if NGRE > 0 226 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 227 gre_input, rip_output, rip_ctlinput, rip_ctloutput, 228 rip_usrreq, 229 0, 0, 0, 0, 230 }, 231 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 232 gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput, 233 rip_usrreq, 234 0, 0, 0, 0, 235 }, 236 #endif /* NGRE > 0 */ 237 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 238 igmp_input, rip_output, rip_ctlinput, rip_ctloutput, 239 rip_usrreq, 240 NULL, igmp_fasttimo, igmp_slowtimo, 0, 241 }, 242 #ifdef PIM 243 { SOCK_RAW, &inetdomain, IPPROTO_PIM, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 244 pim_input, rip_output, rip_ctlinput, rip_ctloutput, 245 rip_usrreq, 246 NULL, 0, 0, 0, 247 }, 248 #endif /* PIM */ 249 #ifdef TPIP 250 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 251 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 252 tp_usrreq, 253 tp_init, 0, tp_slowtimo, tp_drain, 254 }, 255 #endif /* TPIP */ 256 #ifdef ISO 257 /* EON (ISO CLNL over IP) */ 258 #ifdef EON 259 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 260 eoninput, 0, eonctlinput, 0, 261 0, 262 eonprotoinit, 0, 0, 0, 263 }, 264 #else 265 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 266 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 267 rip_usrreq, /*XXX*/ 268 encap_init, 0, 0, 0, 269 }, 270 #endif /* EON */ 271 #endif /* ISO */ 272 #ifdef NSIP 273 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 274 idpip_input, NULL, nsip_ctlinput, 0, 275 rip_usrreq, 276 0, 0, 0, 0, 277 }, 278 #endif /* NSIP */ 279 /* raw wildcard */ 280 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 281 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 282 rip_usrreq, 283 rip_init, 0, 0, 0, 284 }, 285 }; 286 287 struct domain inetdomain = 288 { PF_INET, "internet", 0, 0, 0, 289 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 290 rn_inithead, 32, sizeof(struct sockaddr_in) }; 291 292 u_char ip_protox[IPPROTO_MAX]; 293 294 int icmperrppslim = 100; /* 100pps */ 295
Indexes created Tue Sep 23 07:09:52 GMT 2025