in_proto.c revision 1.63
1 /* $NetBSD: in_proto.c,v 1.63 2004/04/22 01:01:41 matt 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 1.63 2004/04/22 01:01:41 matt 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 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 90 #ifdef INET6 91 #ifndef INET 92 #include <netinet/in.h> 93 #endif 94 #include <netinet/ip6.h> 95 #endif 96 97 #include <netinet/igmp_var.h> 98 #include <netinet/tcp.h> 99 #include <netinet/tcp_fsm.h> 100 #include <netinet/tcp_seq.h> 101 #include <netinet/tcp_timer.h> 102 #include <netinet/tcp_var.h> 103 #include <netinet/tcpip.h> 104 #include <netinet/tcp_debug.h> 105 #include <netinet/udp.h> 106 #include <netinet/udp_var.h> 107 #include <netinet/ip_encap.h> 108 /* 109 * TCP/IP protocol family: IP, ICMP, UDP, TCP. 110 */ 111 112 #ifdef IPSEC 113 #include <netinet6/ipsec.h> 114 #include <netinet6/ah.h> 115 #ifdef IPSEC_ESP 116 #include <netinet6/esp.h> 117 #endif 118 #include <netinet6/ipcomp.h> 119 #endif /* IPSEC */ 120 121 #ifdef FAST_IPSEC 122 #include <netipsec/ipsec.h> 123 #include <netipsec/key.h> 124 #endif /* FAST_IPSEC */ 125 126 #ifdef NSIP 127 #include <netns/ns_var.h> 128 #include <netns/idp_var.h> 129 #endif /* NSIP */ 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 const struct protosw inetsw[] = { 146 { 0, &inetdomain, 0, 0, 147 0, ip_output, 0, 0, 148 0, 149 ip_init, 0, ip_slowtimo, ip_drain, NULL 150 }, 151 { SOCK_DGRAM, &inetdomain, IPPROTO_UDP, PR_ATOMIC|PR_ADDR, 152 udp_input, 0, udp_ctlinput, ip_ctloutput, 153 udp_usrreq, 154 udp_init, 0, 0, 0, NULL 155 }, 156 { SOCK_STREAM, &inetdomain, IPPROTO_TCP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_ABRTACPTDIS, 157 tcp_input, 0, tcp_ctlinput, tcp_ctloutput, 158 tcp_usrreq, 159 tcp_init, 0, tcp_slowtimo, tcp_drain, NULL 160 }, 161 { SOCK_RAW, &inetdomain, IPPROTO_RAW, PR_ATOMIC|PR_ADDR, 162 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 163 rip_usrreq, 164 0, 0, 0, 0, 165 }, 166 { SOCK_RAW, &inetdomain, IPPROTO_ICMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 167 icmp_input, rip_output, rip_ctlinput, rip_ctloutput, 168 rip_usrreq, 169 icmp_init, 0, 0, 0, NULL 170 }, 171 #ifdef IPSEC 172 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 173 ah4_input, 0, ah4_ctlinput, 0, 174 0, 175 0, 0, 0, 0, NULL 176 }, 177 #ifdef IPSEC_ESP 178 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 179 esp4_input, 180 0, esp4_ctlinput, 0, 181 0, 182 0, 0, 0, 0, NULL 183 }, 184 #endif 185 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 186 ipcomp4_input, 187 0, 0, 0, 188 0, 189 0, 0, 0, 0, NULL 190 }, 191 #endif /* IPSEC */ 192 #ifdef FAST_IPSEC 193 { SOCK_RAW, &inetdomain, IPPROTO_AH, PR_ATOMIC|PR_ADDR, 194 ipsec4_common_input, 0, ah4_ctlinput, 0, 195 0, 196 0, 0, 0, 0, NULL 197 }, 198 { SOCK_RAW, &inetdomain, IPPROTO_ESP, PR_ATOMIC|PR_ADDR, 199 ipsec4_common_input, 0, esp4_ctlinput, 0, 200 0, 201 0, 0, 0, 0, NULL 202 }, 203 { SOCK_RAW, &inetdomain, IPPROTO_IPCOMP, PR_ATOMIC|PR_ADDR, 204 ipsec4_common_input, 0, 0, 0, 205 0, 206 0, 0, 0, 0, NULL 207 }, 208 #endif /* FAST_IPSEC */ 209 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 210 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 211 rip_usrreq, /*XXX*/ 212 encap_init, 0, 0, 0, 213 }, 214 #ifdef INET6 215 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 216 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 217 rip_usrreq, /*XXX*/ 218 encap_init, 0, 0, 0, 219 }, 220 #endif /* INET6 */ 221 #if NGRE > 0 222 { SOCK_RAW, &inetdomain, IPPROTO_GRE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 223 gre_input, rip_output, rip_ctlinput, rip_ctloutput, 224 rip_usrreq, 225 0, 0, 0, 0, 226 }, 227 { SOCK_RAW, &inetdomain, IPPROTO_MOBILE, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 228 gre_mobile_input, rip_output, rip_ctlinput, rip_ctloutput, 229 rip_usrreq, 230 0, 0, 0, 0, 231 }, 232 #endif /* NGRE > 0 */ 233 { SOCK_RAW, &inetdomain, IPPROTO_IGMP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 234 igmp_input, rip_output, rip_ctlinput, rip_ctloutput, 235 rip_usrreq, 236 igmp_init, igmp_fasttimo, igmp_slowtimo, 0, 237 }, 238 #ifdef TPIP 239 { SOCK_SEQPACKET,&inetdomain, IPPROTO_TP, PR_CONNREQUIRED|PR_WANTRCVD|PR_LISTEN|PR_LASTHDR|PR_ABRTACPTDIS, 240 tpip_input, 0, tpip_ctlinput, tp_ctloutput, 241 tp_usrreq, 242 tp_init, 0, tp_slowtimo, tp_drain, 243 }, 244 #endif /* TPIP */ 245 #ifdef ISO 246 /* EON (ISO CLNL over IP) */ 247 #ifdef EON 248 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_LASTHDR, 249 eoninput, 0, eonctlinput, 0, 250 0, 251 eonprotoinit, 0, 0, 0, 252 }, 253 #else 254 { SOCK_RAW, &inetdomain, IPPROTO_EON, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 255 encap4_input, rip_output, rip_ctlinput, rip_ctloutput, 256 rip_usrreq, /*XXX*/ 257 encap_init, 0, 0, 0, 258 }, 259 #endif /* EON */ 260 #endif /* ISO */ 261 #ifdef NSIP 262 { SOCK_RAW, &inetdomain, IPPROTO_IDP, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 263 idpip_input, NULL, nsip_ctlinput, 0, 264 rip_usrreq, 265 0, 0, 0, 0, 266 }, 267 #endif /* NSIP */ 268 /* raw wildcard */ 269 { SOCK_RAW, &inetdomain, 0, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 270 rip_input, rip_output, rip_ctlinput, rip_ctloutput, 271 rip_usrreq, 272 rip_init, 0, 0, 0, 273 }, 274 }; 275 276 struct domain inetdomain = 277 { PF_INET, "internet", 0, 0, 0, 278 inetsw, &inetsw[sizeof(inetsw)/sizeof(inetsw[0])], 0, 279 rn_inithead, 32, sizeof(struct sockaddr_in) }; 280 281 u_char ip_protox[IPPROTO_MAX]; 282 283 int icmperrppslim = 100; /* 100pps */ 284
Indexes created Tue Sep 23 07:09:52 GMT 2025