Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/netipsec/xform_ipip.c
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1 /* $FreeBSD: releng/5.0/sys/netipsec/xform_ipip.c 105197 2002-10-16 02:10:08Z sam $ */ 2 /* $OpenBSD: ip_ipip.c,v 1.25 2002/06/10 18:04:55 itojun Exp $ */ 3 /* 4 * The authors of this code are John Ioannidis (ji@tla.org), 5 * Angelos D. Keromytis (kermit@csd.uch.gr) and 6 * Niels Provos (provos@physnet.uni-hamburg.de). 7 * 8 * The original version of this code was written by John Ioannidis 9 * for BSD/OS in Athens, Greece, in November 1995. 10 * 11 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, 12 * by Angelos D. Keromytis. 13 * 14 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis 15 * and Niels Provos. 16 * 17 * Additional features in 1999 by Angelos D. Keromytis. 18 * 19 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, 20 * Angelos D. Keromytis and Niels Provos. 21 * Copyright (c) 2001, Angelos D. Keromytis. 22 * 23 * Permission to use, copy, and modify this software with or without fee 24 * is hereby granted, provided that this entire notice is included in 25 * all copies of any software which is or includes a copy or 26 * modification of this software. 27 * You may use this code under the GNU public license if you so wish. Please 28 * contribute changes back to the authors under this freer than GPL license 29 * so that we may further the use of strong encryption without limitations to 30 * all. 31 * 32 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 33 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 34 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 35 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 36 * PURPOSE. 37 */ 38 39 /* 40 * IP-inside-IP processing 41 */ 42 #include "opt_inet.h" 43 #include "opt_inet6.h" 44 #include "opt_random_ip_id.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/mbuf.h> 49 #include <sys/socket.h> 50 #include <sys/kernel.h> 51 #include <sys/protosw.h> 52 #include <sys/sysctl.h> 53 54 #include <net/if.h> 55 #include <net/route.h> 56 #include <net/netisr.h> 57 58 #include <netinet/in.h> 59 #include <netinet/in_systm.h> 60 #include <netinet/in_var.h> 61 #include <netinet/ip.h> 62 #include <netinet/ip_ecn.h> 63 #include <netinet/ip_var.h> 64 #include <netinet/ip_encap.h> 65 #include <netinet/ipprotosw.h> 66 67 #include <netipsec/ipsec.h> 68 #include <netipsec/xform.h> 69 70 #include <netipsec/ipip_var.h> 71 72 #ifdef MROUTING 73 #include <netinet/ip_mroute.h> 74 #endif 75 76 #ifdef INET6 77 #include <netinet/ip6.h> 78 #include <netipsec/ipsec6.h> 79 #include <netinet6/ip6_ecn.h> 80 #include <netinet6/in6_var.h> 81 #include <netinet6/ip6protosw.h> 82 #endif 83 84 #include <netipsec/key.h> 85 #include <netipsec/key_debug.h> 86 87 #include <machine/stdarg.h> 88 89 /* 90 * We can control the acceptance of IP4 packets by altering the sysctl 91 * net.inet.ipip.allow value. Zero means drop them, all else is acceptance. 92 */ 93 int ipip_allow = 0; 94 struct ipipstat ipipstat; 95 96 SYSCTL_DECL(_net_inet_ipip); 97 SYSCTL_INT(_net_inet_ipip, OID_AUTO, 98 ipip_allow, CTLFLAG_RW, &ipip_allow, 0, ""); 99 SYSCTL_STRUCT(_net_inet_ipip, IPSECCTL_STATS, 100 stats, CTLFLAG_RD, &ipipstat, ipipstat, ""); 101 102 /* XXX IPCOMP */ 103 #define M_IPSEC (M_AUTHIPHDR|M_AUTHIPDGM|M_DECRYPTED) 104 105 static void _ipip_input(struct mbuf *m, int iphlen, struct ifnet *gifp); 106 107 #ifdef INET6 108 /* 109 * Really only a wrapper for ipip_input(), for use with IPv6. 110 */ 111 int 112 ip4_input6(struct mbuf **m, int *offp, int proto) 113 { 114 #if 0 115 /* If we do not accept IP-in-IP explicitly, drop. */ 116 if (!ipip_allow && ((*m)->m_flags & M_IPSEC) == 0) { 117 DPRINTF(("ip4_input6: dropped due to policy\n")); 118 ipipstat.ipips_pdrops++; 119 m_freem(*m); 120 return IPPROTO_DONE; 121 } 122 #endif 123 _ipip_input(*m, *offp, NULL); 124 return IPPROTO_DONE; 125 } 126 #endif /* INET6 */ 127 128 #ifdef INET 129 /* 130 * Really only a wrapper for ipip_input(), for use with IPv4. 131 */ 132 void 133 ip4_input(struct mbuf *m, ...) 134 { 135 va_list ap; 136 int iphlen; 137 138 #if 0 139 /* If we do not accept IP-in-IP explicitly, drop. */ 140 if (!ipip_allow && (m->m_flags & M_IPSEC) == 0) { 141 DPRINTF(("ip4_input: dropped due to policy\n")); 142 ipipstat.ipips_pdrops++; 143 m_freem(m); 144 return; 145 } 146 #endif 147 va_start(ap, m); 148 iphlen = va_arg(ap, int); 149 va_end(ap); 150 151 _ipip_input(m, iphlen, NULL); 152 } 153 #endif /* INET */ 154 155 /* 156 * ipip_input gets called when we receive an IP{46} encapsulated packet, 157 * either because we got it at a real interface, or because AH or ESP 158 * were being used in tunnel mode (in which case the rcvif element will 159 * contain the address of the encX interface associated with the tunnel. 160 */ 161 162 static void 163 _ipip_input(struct mbuf *m, int iphlen, struct ifnet *gifp) 164 { 165 register struct sockaddr_in *sin; 166 register struct ifnet *ifp; 167 register struct ifaddr *ifa; 168 struct ifqueue *ifq = NULL; 169 struct ip *ipo; 170 #ifdef INET6 171 register struct sockaddr_in6 *sin6; 172 struct ip6_hdr *ip6 = NULL; 173 u_int8_t itos; 174 #endif 175 u_int8_t nxt; 176 int isr; 177 u_int8_t otos; 178 u_int8_t v; 179 int hlen; 180 181 ipipstat.ipips_ipackets++; 182 183 m_copydata(m, 0, 1, &v); 184 185 switch (v >> 4) { 186 #ifdef INET 187 case 4: 188 hlen = sizeof(struct ip); 189 break; 190 #endif /* INET */ 191 #ifdef INET6 192 case 6: 193 hlen = sizeof(struct ip6_hdr); 194 break; 195 #endif 196 default: 197 ipipstat.ipips_family++; 198 m_freem(m); 199 return /* EAFNOSUPPORT */; 200 } 201 202 /* Bring the IP header in the first mbuf, if not there already */ 203 if (m->m_len < hlen) { 204 if ((m = m_pullup(m, hlen)) == NULL) { 205 DPRINTF(("ipip_input: m_pullup (1) failed\n")); 206 ipipstat.ipips_hdrops++; 207 return; 208 } 209 } 210 211 ipo = mtod(m, struct ip *); 212 213 #ifdef MROUTING 214 if (ipo->ip_v == IPVERSION && ipo->ip_p == IPPROTO_IPV4) { 215 if (IN_MULTICAST(((struct ip *)((char *) ipo + iphlen))->ip_dst.s_addr)) { 216 ipip_mroute_input (m, iphlen); 217 return; 218 } 219 } 220 #endif /* MROUTING */ 221 222 /* Keep outer ecn field. */ 223 switch (v >> 4) { 224 #ifdef INET 225 case 4: 226 otos = ipo->ip_tos; 227 break; 228 #endif /* INET */ 229 #ifdef INET6 230 case 6: 231 otos = (ntohl(mtod(m, struct ip6_hdr *)->ip6_flow) >> 20) & 0xff; 232 break; 233 #endif 234 default: 235 panic("ipip_input: unknown ip version %u (outer)", v>>4); 236 } 237 238 /* Remove outer IP header */ 239 m_adj(m, iphlen); 240 241 /* Sanity check */ 242 if (m->m_pkthdr.len < sizeof(struct ip)) { 243 ipipstat.ipips_hdrops++; 244 m_freem(m); 245 return; 246 } 247 248 m_copydata(m, 0, 1, &v); 249 250 switch (v >> 4) { 251 #ifdef INET 252 case 4: 253 hlen = sizeof(struct ip); 254 break; 255 #endif /* INET */ 256 257 #ifdef INET6 258 case 6: 259 hlen = sizeof(struct ip6_hdr); 260 break; 261 #endif 262 default: 263 ipipstat.ipips_family++; 264 m_freem(m); 265 return; /* EAFNOSUPPORT */ 266 } 267 268 /* 269 * Bring the inner IP header in the first mbuf, if not there already. 270 */ 271 if (m->m_len < hlen) { 272 if ((m = m_pullup(m, hlen)) == NULL) { 273 DPRINTF(("ipip_input: m_pullup (2) failed\n")); 274 ipipstat.ipips_hdrops++; 275 return; 276 } 277 } 278 279 /* 280 * RFC 1853 specifies that the inner TTL should not be touched on 281 * decapsulation. There's no reason this comment should be here, but 282 * this is as good as any a position. 283 */ 284 285 /* Some sanity checks in the inner IP header */ 286 switch (v >> 4) { 287 #ifdef INET 288 case 4: 289 ipo = mtod(m, struct ip *); 290 nxt = ipo->ip_p; 291 ip_ecn_egress(ip4_ipsec_ecn, &otos, &ipo->ip_tos); 292 break; 293 #endif /* INET */ 294 #ifdef INET6 295 case 6: 296 ip6 = (struct ip6_hdr *) ipo; 297 nxt = ip6->ip6_nxt; 298 itos = (ntohl(ip6->ip6_flow) >> 20) & 0xff; 299 ip_ecn_egress(ip6_ipsec_ecn, &otos, &itos); 300 ip6->ip6_flow &= ~htonl(0xff << 20); 301 ip6->ip6_flow |= htonl((u_int32_t) itos << 20); 302 break; 303 #endif 304 default: 305 panic("ipip_input: unknown ip version %u (inner)", v>>4); 306 } 307 308 /* Check for local address spoofing. */ 309 if ((m->m_pkthdr.rcvif == NULL || 310 !(m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK)) && 311 ipip_allow != 2) { 312 for (ifp = ifnet.tqh_first; ifp != 0; 313 ifp = ifp->if_list.tqe_next) { 314 for (ifa = ifp->if_addrlist.tqh_first; ifa != 0; 315 ifa = ifa->ifa_list.tqe_next) { 316 #ifdef INET 317 if (ipo) { 318 if (ifa->ifa_addr->sa_family != 319 AF_INET) 320 continue; 321 322 sin = (struct sockaddr_in *) ifa->ifa_addr; 323 324 if (sin->sin_addr.s_addr == 325 ipo->ip_src.s_addr) { 326 ipipstat.ipips_spoof++; 327 m_freem(m); 328 return; 329 } 330 } 331 #endif /* INET */ 332 333 #ifdef INET6 334 if (ip6) { 335 if (ifa->ifa_addr->sa_family != 336 AF_INET6) 337 continue; 338 339 sin6 = (struct sockaddr_in6 *) ifa->ifa_addr; 340 341 if (IN6_ARE_ADDR_EQUAL(&sin6->sin6_addr, &ip6->ip6_src)) { 342 ipipstat.ipips_spoof++; 343 m_freem(m); 344 return; 345 } 346 347 } 348 #endif /* INET6 */ 349 } 350 } 351 } 352 353 /* Statistics */ 354 ipipstat.ipips_ibytes += m->m_pkthdr.len - iphlen; 355 356 /* 357 * Interface pointer stays the same; if no IPsec processing has 358 * been done (or will be done), this will point to a normal 359 * interface. Otherwise, it'll point to an enc interface, which 360 * will allow a packet filter to distinguish between secure and 361 * untrusted packets. 362 */ 363 364 switch (v >> 4) { 365 #ifdef INET 366 case 4: 367 ifq = &ipintrq; 368 isr = NETISR_IP; 369 break; 370 #endif 371 #ifdef INET6 372 case 6: 373 ifq = &ip6intrq; 374 isr = NETISR_IPV6; 375 break; 376 #endif 377 default: 378 panic("ipip_input: should never reach here"); 379 } 380 381 if (!IF_HANDOFF(ifq, m, NULL)) { 382 ipipstat.ipips_qfull++; 383 384 DPRINTF(("ipip_input: packet dropped because of full queue\n")); 385 } else { 386 schednetisr(isr); 387 } 388 } 389 390 int 391 ipip_output( 392 struct mbuf *m, 393 struct ipsecrequest *isr, 394 struct mbuf **mp, 395 int skip, 396 int protoff 397 ) 398 { 399 struct secasvar *sav; 400 u_int8_t tp, otos; 401 struct secasindex *saidx; 402 int error; 403 #ifdef INET 404 u_int8_t itos; 405 struct ip *ipo; 406 #endif /* INET */ 407 #ifdef INET6 408 struct ip6_hdr *ip6, *ip6o; 409 #endif /* INET6 */ 410 411 #if 0 412 SPLASSERT(net, "ipip_output"); 413 #endif 414 415 sav = isr->sav; 416 KASSERT(sav != NULL, ("ipip_output: null SA")); 417 KASSERT(sav->sah != NULL, ("ipip_output: null SAH")); 418 419 /* XXX Deal with empty TDB source/destination addresses. */ 420 421 m_copydata(m, 0, 1, &tp); 422 tp = (tp >> 4) & 0xff; /* Get the IP version number. */ 423 424 saidx = &sav->sah->saidx; 425 switch (saidx->dst.sa.sa_family) { 426 #ifdef INET 427 case AF_INET: 428 if (saidx->src.sa.sa_family != AF_INET || 429 saidx->src.sin.sin_addr.s_addr == INADDR_ANY || 430 saidx->dst.sin.sin_addr.s_addr == INADDR_ANY) { 431 DPRINTF(("ipip_output: unspecified tunnel endpoint " 432 "address in SA %s/%08lx\n", 433 ipsec_address(&saidx->dst), 434 (u_long) ntohl(sav->spi))); 435 ipipstat.ipips_unspec++; 436 error = EINVAL; 437 goto bad; 438 } 439 440 M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); 441 if (m == 0) { 442 DPRINTF(("ipip_output: M_PREPEND failed\n")); 443 ipipstat.ipips_hdrops++; 444 error = ENOBUFS; 445 goto bad; 446 } 447 448 ipo = mtod(m, struct ip *); 449 450 ipo->ip_v = IPVERSION; 451 ipo->ip_hl = 5; 452 ipo->ip_len = htons(m->m_pkthdr.len); 453 ipo->ip_ttl = ip_defttl; 454 ipo->ip_sum = 0; 455 ipo->ip_src = saidx->src.sin.sin_addr; 456 ipo->ip_dst = saidx->dst.sin.sin_addr; 457 458 #ifdef RANDOM_IP_ID 459 ipo->ip_id = ip_randomid(); 460 #else 461 ipo->ip_id = htons(ip_id++); 462 #endif 463 464 /* If the inner protocol is IP... */ 465 if (tp == IPVERSION) { 466 /* Save ECN notification */ 467 m_copydata(m, sizeof(struct ip) + 468 offsetof(struct ip, ip_tos), 469 sizeof(u_int8_t), (caddr_t) &itos); 470 471 ipo->ip_p = IPPROTO_IPIP; 472 473 /* 474 * We should be keeping tunnel soft-state and 475 * send back ICMPs if needed. 476 */ 477 m_copydata(m, sizeof(struct ip) + 478 offsetof(struct ip, ip_off), 479 sizeof(u_int16_t), (caddr_t) &ipo->ip_off); 480 ipo->ip_off = ntohs(ipo->ip_off); 481 ipo->ip_off &= ~(IP_DF | IP_MF | IP_OFFMASK); 482 ipo->ip_off = htons(ipo->ip_off); 483 } 484 #ifdef INET6 485 else if (tp == (IPV6_VERSION >> 4)) { 486 u_int32_t itos32; 487 488 /* Save ECN notification. */ 489 m_copydata(m, sizeof(struct ip) + 490 offsetof(struct ip6_hdr, ip6_flow), 491 sizeof(u_int32_t), (caddr_t) &itos32); 492 itos = ntohl(itos32) >> 20; 493 ipo->ip_p = IPPROTO_IPV6; 494 ipo->ip_off = 0; 495 } 496 #endif /* INET6 */ 497 else { 498 goto nofamily; 499 } 500 501 otos = 0; 502 ip_ecn_ingress(ECN_ALLOWED, &otos, &itos); 503 ipo->ip_tos = otos; 504 break; 505 #endif /* INET */ 506 507 #ifdef INET6 508 case AF_INET6: 509 if (IN6_IS_ADDR_UNSPECIFIED(&saidx->dst.sin6.sin6_addr) || 510 saidx->src.sa.sa_family != AF_INET6 || 511 IN6_IS_ADDR_UNSPECIFIED(&saidx->src.sin6.sin6_addr)) { 512 DPRINTF(("ipip_output: unspecified tunnel endpoint " 513 "address in SA %s/%08lx\n", 514 ipsec_address(&saidx->dst), 515 (u_long) ntohl(sav->spi))); 516 ipipstat.ipips_unspec++; 517 error = ENOBUFS; 518 goto bad; 519 } 520 521 /* scoped address handling */ 522 ip6 = mtod(m, struct ip6_hdr *); 523 if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_src)) 524 ip6->ip6_src.s6_addr16[1] = 0; 525 if (IN6_IS_SCOPE_LINKLOCAL(&ip6->ip6_dst)) 526 ip6->ip6_dst.s6_addr16[1] = 0; 527 528 M_PREPEND(m, sizeof(struct ip6_hdr), M_DONTWAIT); 529 if (m == 0) { 530 DPRINTF(("ipip_output: M_PREPEND failed\n")); 531 ipipstat.ipips_hdrops++; 532 *mp = NULL; 533 error = ENOBUFS; 534 goto bad; 535 } 536 537 /* Initialize IPv6 header */ 538 ip6o = mtod(m, struct ip6_hdr *); 539 ip6o->ip6_flow = 0; 540 ip6o->ip6_vfc &= ~IPV6_VERSION_MASK; 541 ip6o->ip6_vfc |= IPV6_VERSION; 542 ip6o->ip6_plen = htons(m->m_pkthdr.len); 543 ip6o->ip6_hlim = ip_defttl; 544 ip6o->ip6_dst = saidx->dst.sin6.sin6_addr; 545 ip6o->ip6_src = saidx->src.sin6.sin6_addr; 546 547 #ifdef INET 548 if (tp == IPVERSION) { 549 /* Save ECN notification */ 550 m_copydata(m, sizeof(struct ip6_hdr) + 551 offsetof(struct ip, ip_tos), sizeof(u_int8_t), 552 (caddr_t) &itos); 553 554 /* This is really IPVERSION. */ 555 ip6o->ip6_nxt = IPPROTO_IPIP; 556 } else 557 #endif /* INET */ 558 if (tp == (IPV6_VERSION >> 4)) { 559 u_int32_t itos32; 560 561 /* Save ECN notification. */ 562 m_copydata(m, sizeof(struct ip6_hdr) + 563 offsetof(struct ip6_hdr, ip6_flow), 564 sizeof(u_int32_t), (caddr_t) &itos32); 565 itos = ntohl(itos32) >> 20; 566 567 ip6o->ip6_nxt = IPPROTO_IPV6; 568 } else { 569 goto nofamily; 570 } 571 572 otos = 0; 573 ip_ecn_ingress(ECN_ALLOWED, &otos, &itos); 574 ip6o->ip6_flow |= htonl((u_int32_t) otos << 20); 575 break; 576 #endif /* INET6 */ 577 578 default: 579 nofamily: 580 DPRINTF(("ipip_output: unsupported protocol family %u\n", 581 saidx->dst.sa.sa_family)); 582 ipipstat.ipips_family++; 583 error = EAFNOSUPPORT; /* XXX diffs from openbsd */ 584 goto bad; 585 } 586 587 ipipstat.ipips_opackets++; 588 *mp = m; 589 590 #ifdef INET 591 if (saidx->dst.sa.sa_family == AF_INET) { 592 #if 0 593 if (sav->tdb_xform->xf_type == XF_IP4) 594 tdb->tdb_cur_bytes += 595 m->m_pkthdr.len - sizeof(struct ip); 596 #endif 597 ipipstat.ipips_obytes += m->m_pkthdr.len - sizeof(struct ip); 598 } 599 #endif /* INET */ 600 601 #ifdef INET6 602 if (saidx->dst.sa.sa_family == AF_INET6) { 603 #if 0 604 if (sav->tdb_xform->xf_type == XF_IP4) 605 tdb->tdb_cur_bytes += 606 m->m_pkthdr.len - sizeof(struct ip6_hdr); 607 #endif 608 ipipstat.ipips_obytes += 609 m->m_pkthdr.len - sizeof(struct ip6_hdr); 610 } 611 #endif /* INET6 */ 612 613 return 0; 614 bad: 615 if (m) 616 m_freem(m), *mp = NULL; 617 return (error); 618 } 619 620 #ifdef FAST_IPSEC 621 static int 622 ipe4_init(struct secasvar *sav, struct xformsw *xsp) 623 { 624 sav->tdb_xform = xsp; 625 return 0; 626 } 627 628 static int 629 ipe4_zeroize(struct secasvar *sav) 630 { 631 sav->tdb_xform = NULL; 632 return 0; 633 } 634 635 static int 636 ipe4_input(struct mbuf *m, struct secasvar *sav, int skip, int protoff) 637 { 638 /* This is a rather serious mistake, so no conditional printing. */ 639 printf("ipe4_input: should never be called\n"); 640 if (m) 641 m_freem(m); 642 return EOPNOTSUPP; 643 } 644 645 static struct xformsw ipe4_xformsw = { 646 XF_IP4, 0, "IPv4 Simple Encapsulation", 647 ipe4_init, ipe4_zeroize, ipe4_input, ipip_output, 648 }; 649 650 extern struct domain inetdomain; 651 static struct ipprotosw ipe4_protosw[] = { 652 { SOCK_RAW, &inetdomain, IPPROTO_IPV4, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 653 (pr_in_input_t*) ip4_input, 654 0, 0, rip_ctloutput, 655 0, 656 0, 0, 0, 0, 657 &rip_usrreqs 658 }, 659 #ifdef INET6 660 { SOCK_RAW, &inetdomain, IPPROTO_IPV6, PR_ATOMIC|PR_ADDR|PR_LASTHDR, 661 (pr_in_input_t*) ip4_input, 662 0, 0, rip_ctloutput, 663 0, 664 0, 0, 0, 0, 665 &rip_usrreqs 666 } 667 #endif 668 }; 669 670 /* 671 * Check the encapsulated packet to see if we want it 672 */ 673 static int 674 ipe4_encapcheck(const struct mbuf *m, int off, int proto, void *arg) 675 { 676 /* 677 * Only take packets coming from IPSEC tunnels; the rest 678 * must be handled by the gif tunnel code. Note that we 679 * also return a minimum priority when we want the packet 680 * so any explicit gif tunnels take precedence. 681 */ 682 return ((m->m_flags & M_IPSEC) != 0 ? 1 : 0); 683 } 684 685 static void 686 ipe4_attach(void) 687 { 688 xform_register(&ipe4_xformsw); 689 /* attach to encapsulation framework */ 690 /* XXX save return cookie for detach on module remove */ 691 (void) encap_attach_func(AF_INET, -1, 692 ipe4_encapcheck, (struct protosw*) &ipe4_protosw[0], NULL); 693 #ifdef INET6 694 (void) encap_attach_func(AF_INET6, -1, 695 ipe4_encapcheck, (struct protosw*) &ipe4_protosw[1], NULL); 696 #endif 697 } 698 SYSINIT(ipe4_xform_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_MIDDLE, ipe4_attach, NULL); 699 #endif /* FAST_IPSEC */
Cache object: 8f5d3641c7731d7da81582ac6e026e06
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