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
|