1: /* $NetBSD: handler.c,v 1.39.2.1 2011/11/17 14:46:31 vanhu Exp $ */
2:
3: /* Id: handler.c,v 1.28 2006/05/26 12:17:29 manubsd Exp */
4:
5: /*
6: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7: * All rights reserved.
8: *
9: * Redistribution and use in source and binary forms, with or without
10: * modification, are permitted provided that the following conditions
11: * are met:
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in the
16: * documentation and/or other materials provided with the distribution.
17: * 3. Neither the name of the project nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: */
33:
34: #include "config.h"
35:
36: #include <sys/types.h>
37: #include <sys/param.h>
38: #include <sys/socket.h>
39:
40: #include <stdlib.h>
41: #include <stdio.h>
42: #include <string.h>
43: #include <time.h>
44: #include <errno.h>
45:
46: #include "var.h"
47: #include "misc.h"
48: #include "vmbuf.h"
49: #include "plog.h"
50: #include "sockmisc.h"
51: #include "debug.h"
52:
53: #ifdef ENABLE_HYBRID
54: #include <resolv.h>
55: #endif
56:
57: #include "schedule.h"
58: #include "grabmyaddr.h"
59: #include "algorithm.h"
60: #include "crypto_openssl.h"
61: #include "policy.h"
62: #include "proposal.h"
63: #include "isakmp_var.h"
64: #include "evt.h"
65: #include "isakmp.h"
66: #ifdef ENABLE_HYBRID
67: #include "isakmp_xauth.h"
68: #include "isakmp_cfg.h"
69: #endif
70: #include "isakmp_inf.h"
71: #include "oakley.h"
72: #include "remoteconf.h"
73: #include "localconf.h"
74: #include "handler.h"
75: #include "gcmalloc.h"
76: #include "nattraversal.h"
77:
78: #include "sainfo.h"
79:
80: #ifdef HAVE_GSSAPI
81: #include "gssapi.h"
82: #endif
83:
84: static LIST_HEAD(_ph1tree_, ph1handle) ph1tree;
85: static LIST_HEAD(_ph2tree_, ph2handle) ph2tree;
86: static LIST_HEAD(_ctdtree_, contacted) ctdtree;
87: static LIST_HEAD(_rcptree_, recvdpkt) rcptree;
88: static struct sched sc_sweep = SCHED_INITIALIZER();
89:
90: static void del_recvdpkt __P((struct recvdpkt *));
91: static void rem_recvdpkt __P((struct recvdpkt *));
92:
93: /*
94: * functions about management of the isakmp status table
95: */
96: /* %%% management phase 1 handler */
97: /*
98: * search for isakmpsa handler with isakmp index.
99: */
100:
101: extern caddr_t val2str(const char *, size_t);
102:
103: /*
104: * Enumerate the Phase 1 tree.
105: * If enum_func() internally return a non-zero value, this specific
106: * error value is returned. 0 is returned if everything went right.
107: *
108: * Note that it is ok for enum_func() to call insph1(). Those inserted
109: * Phase 1 will not interfere with current enumeration process.
110: */
111: int
112: enumph1(sel, enum_func, enum_arg)
113: struct ph1selector *sel;
114: int (* enum_func)(struct ph1handle *iph1, void *arg);
115: void *enum_arg;
116: {
117: struct ph1handle *p;
118: int ret;
119:
120: LIST_FOREACH(p, &ph1tree, chain) {
121: if (sel != NULL) {
122: if (sel->local != NULL &&
123: cmpsaddr(sel->local, p->local) > CMPSADDR_WILDPORT_MATCH)
124: continue;
125:
126: if (sel->remote != NULL &&
127: cmpsaddr(sel->remote, p->remote) > CMPSADDR_WILDPORT_MATCH)
128: continue;
129: }
130:
131: if ((ret = enum_func(p, enum_arg)) != 0)
132: return ret;
133: }
134:
135: return 0;
136: }
137:
138: struct ph1handle *
139: getph1byindex(index)
140: isakmp_index *index;
141: {
142: struct ph1handle *p;
143:
144: LIST_FOREACH(p, &ph1tree, chain) {
145: if (p->status >= PHASE1ST_EXPIRED)
146: continue;
147: if (memcmp(&p->index, index, sizeof(*index)) == 0)
148: return p;
149: }
150:
151: return NULL;
152: }
153:
154:
155: /*
156: * search for isakmp handler by i_ck in index.
157: */
158: struct ph1handle *
159: getph1byindex0(index)
160: isakmp_index *index;
161: {
162: struct ph1handle *p;
163:
164: LIST_FOREACH(p, &ph1tree, chain) {
165: if (p->status >= PHASE1ST_EXPIRED)
166: continue;
167: if (memcmp(&p->index, index, sizeof(cookie_t)) == 0)
168: return p;
169: }
170:
171: return NULL;
172: }
173:
174: /*
175: * search for isakmpsa handler by source and remote address.
176: * don't use port number to search because this function search
177: * with phase 2's destinaion.
178: */
179: struct ph1handle *
180: getph1(ph1hint, local, remote, flags)
181: struct ph1handle *ph1hint;
182: struct sockaddr *local, *remote;
183: int flags;
184: {
185: struct ph1handle *p;
186:
187: plog(LLV_DEBUG2, LOCATION, NULL, "getph1: start\n");
188: plog(LLV_DEBUG2, LOCATION, NULL, "local: %s\n", saddr2str(local));
189: plog(LLV_DEBUG2, LOCATION, NULL, "remote: %s\n", saddr2str(remote));
190:
191: LIST_FOREACH(p, &ph1tree, chain) {
192: if (p->status >= PHASE1ST_DYING)
193: continue;
194:
195: plog(LLV_DEBUG2, LOCATION, NULL, "p->local: %s\n", saddr2str(p->local));
196: plog(LLV_DEBUG2, LOCATION, NULL, "p->remote: %s\n", saddr2str(p->remote));
197:
198: if ((flags & GETPH1_F_ESTABLISHED) &&
199: (p->status != PHASE1ST_ESTABLISHED)) {
200: plog(LLV_DEBUG2, LOCATION, NULL,
201: "status %d, skipping\n", p->status);
202: continue;
203: }
204:
205: if (local != NULL && cmpsaddr(local, p->local) == CMPSADDR_MISMATCH)
206: continue;
207:
208: if (remote != NULL && cmpsaddr(remote, p->remote) == CMPSADDR_MISMATCH)
209: continue;
210:
211: if (ph1hint != NULL) {
212: if (ph1hint->id && ph1hint->id->l && p->id && p->id->l &&
213: (ph1hint->id->l != p->id->l ||
214: memcmp(ph1hint->id->v, p->id->v, p->id->l) != 0)) {
215: plog(LLV_DEBUG2, LOCATION, NULL,
216: "local identity does match hint\n");
217: continue;
218: }
219: if (ph1hint->id_p && ph1hint->id_p->l &&
220: p->id_p && p->id_p->l &&
221: (ph1hint->id_p->l != p->id_p->l ||
222: memcmp(ph1hint->id_p->v, p->id_p->v, p->id_p->l) != 0)) {
223: plog(LLV_DEBUG2, LOCATION, NULL,
224: "remote identity does match hint\n");
225: continue;
226: }
227: }
228:
229: plog(LLV_DEBUG2, LOCATION, NULL, "matched\n");
230: return p;
231: }
232:
233: plog(LLV_DEBUG2, LOCATION, NULL, "no match\n");
234:
235: return NULL;
236: }
237:
238: int
239: resolveph1rmconf(iph1)
240: struct ph1handle *iph1;
241: {
242: struct remoteconf *rmconf;
243:
244: /* INITIATOR is always expected to know the exact rmconf. */
245: if (iph1->side == INITIATOR)
246: return 0;
247:
248: rmconf = getrmconf_by_ph1(iph1);
249: if (rmconf == NULL)
250: return -1;
251: if (rmconf == RMCONF_ERR_MULTIPLE)
252: return 1;
253:
254: if (iph1->rmconf != NULL) {
255: if (rmconf != iph1->rmconf) {
256: plog(LLV_ERROR, LOCATION, NULL,
257: "unexpected rmconf switch; killing ph1\n");
258: return -1;
259: }
260: } else {
261: iph1->rmconf = rmconf;
262: }
263:
264: return 0;
265: }
266:
267:
268: /*
269: * move phase2s from old_iph1 to new_iph1
270: */
271: void
272: migrate_ph12(old_iph1, new_iph1)
273: struct ph1handle *old_iph1, *new_iph1;
274: {
275: struct ph2handle *p, *next;
276:
277: /* Relocate phase2s to better phase1s or request a new phase1. */
278: for (p = LIST_FIRST(&old_iph1->ph2tree); p; p = next) {
279: next = LIST_NEXT(p, ph1bind);
280:
281: if (p->status != PHASE2ST_ESTABLISHED)
282: continue;
283:
284: unbindph12(p);
285: bindph12(new_iph1, p);
286: }
287: }
288:
289: /*
290: * the iph1 is new, migrate all phase2s that belong to a dying or dead ph1
291: */
292: void migrate_dying_ph12(iph1)
293: struct ph1handle *iph1;
294: {
295: struct ph1handle *p;
296:
297: LIST_FOREACH(p, &ph1tree, chain) {
298: if (p == iph1)
299: continue;
300: if (p->status < PHASE1ST_DYING)
301: continue;
302:
303: if (cmpsaddr(iph1->local, p->local) == CMPSADDR_MATCH
304: && cmpsaddr(iph1->remote, p->remote) == CMPSADDR_MATCH)
305: migrate_ph12(p, iph1);
306: }
307: }
308:
309:
310: /*
311: * dump isakmp-sa
312: */
313: vchar_t *
314: dumpph1()
315: {
316: struct ph1handle *iph1;
317: struct ph1dump *pd;
318: int cnt = 0;
319: vchar_t *buf;
320:
321: /* get length of buffer */
322: LIST_FOREACH(iph1, &ph1tree, chain)
323: cnt++;
324:
325: buf = vmalloc(cnt * sizeof(struct ph1dump));
326: if (buf == NULL) {
327: plog(LLV_ERROR, LOCATION, NULL,
328: "failed to get buffer\n");
329: return NULL;
330: }
331: pd = (struct ph1dump *)buf->v;
332:
333: LIST_FOREACH(iph1, &ph1tree, chain) {
334: memcpy(&pd->index, &iph1->index, sizeof(iph1->index));
335: pd->status = iph1->status;
336: pd->side = iph1->side;
337: memcpy(&pd->remote, iph1->remote, sysdep_sa_len(iph1->remote));
338: memcpy(&pd->local, iph1->local, sysdep_sa_len(iph1->local));
339: pd->version = iph1->version;
340: pd->etype = iph1->etype;
341: pd->created = iph1->created;
342: pd->ph2cnt = iph1->ph2cnt;
343: pd++;
344: }
345:
346: return buf;
347: }
348:
349: /*
350: * create new isakmp Phase 1 status record to handle isakmp in Phase1
351: */
352: struct ph1handle *
353: newph1()
354: {
355: struct ph1handle *iph1;
356:
357: /* create new iph1 */
358: iph1 = racoon_calloc(1, sizeof(*iph1));
359: if (iph1 == NULL)
360: return NULL;
361:
362: iph1->status = PHASE1ST_SPAWN;
363:
364: #ifdef ENABLE_DPD
365: iph1->dpd_support = 0;
366: iph1->dpd_seq = 0;
367: iph1->dpd_fails = 0;
368: #endif
369: evt_list_init(&iph1->evt_listeners);
370:
371: return iph1;
372: }
373:
374: /*
375: * delete new isakmp Phase 1 status record to handle isakmp in Phase1
376: */
377: void
378: delph1(iph1)
379: struct ph1handle *iph1;
380: {
381: if (iph1 == NULL)
382: return;
383:
384: /* SA down shell script hook */
385: script_hook(iph1, SCRIPT_PHASE1_DOWN);
386: evt_list_cleanup(&iph1->evt_listeners);
387:
388: #ifdef ENABLE_NATT
389: if (iph1->natt_flags & NAT_KA_QUEUED)
390: natt_keepalive_remove (iph1->local, iph1->remote);
391:
392: if (iph1->natt_options) {
393: racoon_free(iph1->natt_options);
394: iph1->natt_options = NULL;
395: }
396: #endif
397:
398: #ifdef ENABLE_HYBRID
399: if (iph1->mode_cfg)
400: isakmp_cfg_rmstate(iph1);
401: #endif
402:
403: #ifdef ENABLE_DPD
404: sched_cancel(&iph1->dpd_r_u);
405: #endif
406: sched_cancel(&iph1->sce);
407: sched_cancel(&iph1->scr);
408:
409: if (iph1->remote) {
410: racoon_free(iph1->remote);
411: iph1->remote = NULL;
412: }
413: if (iph1->local) {
414: racoon_free(iph1->local);
415: iph1->local = NULL;
416: }
417: if (iph1->approval) {
418: delisakmpsa(iph1->approval);
419: iph1->approval = NULL;
420: }
421:
422: VPTRINIT(iph1->authstr);
423: VPTRINIT(iph1->sendbuf);
424: VPTRINIT(iph1->dhpriv);
425: VPTRINIT(iph1->dhpub);
426: VPTRINIT(iph1->dhpub_p);
427: VPTRINIT(iph1->dhgxy);
428: VPTRINIT(iph1->nonce);
429: VPTRINIT(iph1->nonce_p);
430: VPTRINIT(iph1->skeyid);
431: VPTRINIT(iph1->skeyid_d);
432: VPTRINIT(iph1->skeyid_a);
433: VPTRINIT(iph1->skeyid_e);
434: VPTRINIT(iph1->key);
435: VPTRINIT(iph1->hash);
436: VPTRINIT(iph1->sig);
437: VPTRINIT(iph1->sig_p);
438: VPTRINIT(iph1->cert);
439: VPTRINIT(iph1->cert_p);
440: VPTRINIT(iph1->crl_p);
441: VPTRINIT(iph1->cr_p);
442: VPTRINIT(iph1->id);
443: VPTRINIT(iph1->id_p);
444:
445: if(iph1->approval != NULL)
446: delisakmpsa(iph1->approval);
447:
448: if (iph1->ivm) {
449: oakley_delivm(iph1->ivm);
450: iph1->ivm = NULL;
451: }
452:
453: VPTRINIT(iph1->sa);
454: VPTRINIT(iph1->sa_ret);
455:
456: #ifdef HAVE_GSSAPI
457: VPTRINIT(iph1->gi_i);
458: VPTRINIT(iph1->gi_r);
459:
460: gssapi_free_state(iph1);
461: #endif
462:
463: racoon_free(iph1);
464: }
465:
466: /*
467: * create new isakmp Phase 1 status record to handle isakmp in Phase1
468: */
469: int
470: insph1(iph1)
471: struct ph1handle *iph1;
472: {
473: /* validity check */
474: if (iph1->remote == NULL) {
475: plog(LLV_ERROR, LOCATION, NULL,
476: "invalid isakmp SA handler. no remote address.\n");
477: return -1;
478: }
479: LIST_INSERT_HEAD(&ph1tree, iph1, chain);
480:
481: return 0;
482: }
483:
484: void
485: remph1(iph1)
486: struct ph1handle *iph1;
487: {
488: LIST_REMOVE(iph1, chain);
489: }
490:
491: /*
492: * flush isakmp-sa
493: */
494: void
495: flushph1()
496: {
497: struct ph1handle *p, *next;
498:
499: for (p = LIST_FIRST(&ph1tree); p; p = next) {
500: next = LIST_NEXT(p, chain);
501:
502: /* send delete information */
503: if (p->status >= PHASE1ST_ESTABLISHED)
504: isakmp_info_send_d1(p);
505:
506: remph1(p);
507: delph1(p);
508: }
509: }
510:
511: void
512: initph1tree()
513: {
514: LIST_INIT(&ph1tree);
515: }
516:
517: int
518: ph1_rekey_enabled(iph1)
519: struct ph1handle *iph1;
520: {
521: if (iph1->rmconf == NULL)
522: return 0;
523: if (iph1->rmconf->rekey == REKEY_FORCE)
524: return 1;
525: #ifdef ENABLE_DPD
526: if (iph1->rmconf->rekey == REKEY_ON && iph1->dpd_support &&
527: iph1->rmconf->dpd_interval)
528: return 1;
529: #endif
530: return 0;
531: }
532:
533: /* %%% management phase 2 handler */
534:
535: int
536: enumph2(sel, enum_func, enum_arg)
537: struct ph2selector *sel;
538: int (*enum_func)(struct ph2handle *ph2, void *arg);
539: void *enum_arg;
540: {
541: struct ph2handle *p;
542: int ret;
543:
544: LIST_FOREACH(p, &ph2tree, chain) {
545: if (sel != NULL) {
546: if (sel->spid != 0 && sel->spid != p->spid)
547: continue;
548:
549: if (sel->src != NULL &&
550: cmpsaddr(sel->src, p->src) != CMPSADDR_MATCH)
551: continue;
552:
553: if (sel->dst != NULL &&
554: cmpsaddr(sel->dst, p->dst) != CMPSADDR_MATCH)
555: continue;
556: }
557:
558: if ((ret = enum_func(p, enum_arg)) != 0)
559: return ret;
560: }
561:
562: return 0;
563: }
564:
565: /*
566: * search ph2handle with sequence number.
567: */
568: struct ph2handle *
569: getph2byseq(seq)
570: u_int32_t seq;
571: {
572: struct ph2handle *p;
573:
574: LIST_FOREACH(p, &ph2tree, chain) {
575: if (p->seq == seq)
576: return p;
577: }
578:
579: return NULL;
580: }
581:
582: /*
583: * search ph2handle with message id.
584: */
585: struct ph2handle *
586: getph2bymsgid(iph1, msgid)
587: struct ph1handle *iph1;
588: u_int32_t msgid;
589: {
590: struct ph2handle *p;
591:
592: LIST_FOREACH(p, &iph1->ph2tree, ph1bind) {
593: if (p->msgid == msgid && p->ph1 == iph1)
594: return p;
595: }
596:
597: return NULL;
598: }
599:
600: /* Note that src and dst are not the selectors of the SP
601: * but the source and destination addresses used for
602: * for SA negotiation (best example is tunnel mode SA
603: * where src and dst are the endpoints). There is at most
604: * a unique match because racoon does not support bundles
605: * which makes that there is at most a single established
606: * SA for a given spid. One could say that src and dst
607: * are in fact useless ...
608: */
609: struct ph2handle *
610: getph2byid(src, dst, spid)
611: struct sockaddr *src, *dst;
612: u_int32_t spid;
613: {
614: struct ph2handle *p, *next;
615:
616: for (p = LIST_FIRST(&ph2tree); p; p = next) {
617: next = LIST_NEXT(p, chain);
618:
619: if (spid == p->spid &&
620: cmpsaddr(src, p->src) <= CMPSADDR_WILDPORT_MATCH &&
621: cmpsaddr(dst, p->dst) <= CMPSADDR_WILDPORT_MATCH){
622: /* Sanity check to detect zombie handlers
623: * XXX Sould be done "somewhere" more interesting,
624: * because we have lots of getph2byxxxx(), but this one
625: * is called by pk_recvacquire(), so is the most important.
626: */
627: if(p->status < PHASE2ST_ESTABLISHED &&
628: p->retry_counter == 0
629: && p->sce.func == NULL && p->scr.func == NULL) {
630: plog(LLV_DEBUG, LOCATION, NULL,
631: "Zombie ph2 found, expiring it\n");
632: isakmp_ph2expire(p);
633: }else
634: return p;
635: }
636: }
637:
638: return NULL;
639: }
640:
641: struct ph2handle *
642: getph2bysaddr(src, dst)
643: struct sockaddr *src, *dst;
644: {
645: struct ph2handle *p;
646:
647: LIST_FOREACH(p, &ph2tree, chain) {
648: if (cmpsaddr(src, p->src) <= CMPSADDR_WILDPORT_MATCH &&
649: cmpsaddr(dst, p->dst) <= CMPSADDR_WILDPORT_MATCH)
650: return p;
651: }
652:
653: return NULL;
654: }
655:
656: /*
657: * call by pk_recvexpire().
658: */
659: struct ph2handle *
660: getph2bysaidx(src, dst, proto_id, spi)
661: struct sockaddr *src, *dst;
662: u_int proto_id;
663: u_int32_t spi;
664: {
665: struct ph2handle *iph2;
666: struct saproto *pr;
667:
668: LIST_FOREACH(iph2, &ph2tree, chain) {
669: if (iph2->proposal == NULL && iph2->approval == NULL)
670: continue;
671: if (iph2->approval != NULL) {
672: for (pr = iph2->approval->head; pr != NULL;
673: pr = pr->next) {
674: if (proto_id != pr->proto_id)
675: break;
676: if (spi == pr->spi || spi == pr->spi_p)
677: return iph2;
678: }
679: } else if (iph2->proposal != NULL) {
680: for (pr = iph2->proposal->head; pr != NULL;
681: pr = pr->next) {
682: if (proto_id != pr->proto_id)
683: break;
684: if (spi == pr->spi)
685: return iph2;
686: }
687: }
688: }
689:
690: return NULL;
691: }
692:
693: /*
694: * create new isakmp Phase 2 status record to handle isakmp in Phase2
695: */
696: struct ph2handle *
697: newph2()
698: {
699: struct ph2handle *iph2 = NULL;
700:
701: /* create new iph2 */
702: iph2 = racoon_calloc(1, sizeof(*iph2));
703: if (iph2 == NULL)
704: return NULL;
705:
706: iph2->status = PHASE1ST_SPAWN;
707: evt_list_init(&iph2->evt_listeners);
708:
709: return iph2;
710: }
711:
712: /*
713: * initialize ph2handle
714: * NOTE: don't initialize src/dst.
715: * SPI in the proposal is cleared.
716: */
717: void
718: initph2(iph2)
719: struct ph2handle *iph2;
720: {
721: evt_list_cleanup(&iph2->evt_listeners);
722: unbindph12(iph2);
723:
724: sched_cancel(&iph2->sce);
725: sched_cancel(&iph2->scr);
726:
727: VPTRINIT(iph2->sendbuf);
728: VPTRINIT(iph2->msg1);
729:
730: /* clear spi, keep variables in the proposal */
731: if (iph2->proposal) {
732: struct saproto *pr;
733: for (pr = iph2->proposal->head; pr != NULL; pr = pr->next)
734: pr->spi = 0;
735: }
736:
737: /* clear approval */
738: if (iph2->approval) {
739: flushsaprop(iph2->approval);
740: iph2->approval = NULL;
741: }
742:
743: /* clear the generated policy */
744: if (iph2->spidx_gen) {
745: delsp_bothdir((struct policyindex *)iph2->spidx_gen);
746: racoon_free(iph2->spidx_gen);
747: iph2->spidx_gen = NULL;
748: }
749:
750: if (iph2->pfsgrp) {
751: oakley_dhgrp_free(iph2->pfsgrp);
752: iph2->pfsgrp = NULL;
753: }
754:
755: VPTRINIT(iph2->dhpriv);
756: VPTRINIT(iph2->dhpub);
757: VPTRINIT(iph2->dhpub_p);
758: VPTRINIT(iph2->dhgxy);
759: VPTRINIT(iph2->id);
760: VPTRINIT(iph2->id_p);
761: VPTRINIT(iph2->nonce);
762: VPTRINIT(iph2->nonce_p);
763: VPTRINIT(iph2->sa);
764: VPTRINIT(iph2->sa_ret);
765:
766: if (iph2->ivm) {
767: oakley_delivm(iph2->ivm);
768: iph2->ivm = NULL;
769: }
770:
771: #ifdef ENABLE_NATT
772: if (iph2->natoa_src) {
773: racoon_free(iph2->natoa_src);
774: iph2->natoa_src = NULL;
775: }
776: if (iph2->natoa_dst) {
777: racoon_free(iph2->natoa_dst);
778: iph2->natoa_dst = NULL;
779: }
780: #endif
781: }
782:
783: /*
784: * delete new isakmp Phase 2 status record to handle isakmp in Phase2
785: */
786: void
787: delph2(iph2)
788: struct ph2handle *iph2;
789: {
790: initph2(iph2);
791:
792: if (iph2->src) {
793: racoon_free(iph2->src);
794: iph2->src = NULL;
795: }
796: if (iph2->dst) {
797: racoon_free(iph2->dst);
798: iph2->dst = NULL;
799: }
800: if (iph2->sa_src) {
801: racoon_free(iph2->sa_src);
802: iph2->sa_src = NULL;
803: }
804: if (iph2->sa_dst) {
805: racoon_free(iph2->sa_dst);
806: iph2->sa_dst = NULL;
807: }
808: #ifdef ENABLE_NATT
809: if (iph2->natoa_src) {
810: racoon_free(iph2->natoa_src);
811: iph2->natoa_src = NULL;
812: }
813: if (iph2->natoa_dst) {
814: racoon_free(iph2->natoa_dst);
815: iph2->natoa_dst = NULL;
816: }
817: #endif
818:
819: if (iph2->proposal) {
820: flushsaprop(iph2->proposal);
821: iph2->proposal = NULL;
822: }
823:
824: racoon_free(iph2);
825: }
826:
827: /*
828: * create new isakmp Phase 2 status record to handle isakmp in Phase2
829: */
830: int
831: insph2(iph2)
832: struct ph2handle *iph2;
833: {
834: LIST_INSERT_HEAD(&ph2tree, iph2, chain);
835:
836: return 0;
837: }
838:
839: void
840: remph2(iph2)
841: struct ph2handle *iph2;
842: {
843: unbindph12(iph2);
844: LIST_REMOVE(iph2, chain);
845: }
846:
847: void
848: initph2tree()
849: {
850: LIST_INIT(&ph2tree);
851: }
852:
853: void
854: flushph2()
855: {
856: struct ph2handle *p, *next;
857:
858: plog(LLV_DEBUG2, LOCATION, NULL,
859: "flushing all ph2 handlers...\n");
860:
861: for (p = LIST_FIRST(&ph2tree); p; p = next) {
862: next = LIST_NEXT(p, chain);
863:
864: /* send delete information */
865: if (p->status == PHASE2ST_ESTABLISHED){
866: plog(LLV_DEBUG2, LOCATION, NULL,
867: "got a ph2 handler to flush...\n");
868: isakmp_info_send_d2(p);
869: }else{
870: plog(LLV_DEBUG2, LOCATION, NULL,
871: "skipping ph2 handler (state %d)\n", p->status);
872: }
873:
874: delete_spd(p, 0);
875: remph2(p);
876: delph2(p);
877: }
878: }
879:
880: /*
881: * Delete all Phase 2 handlers for this src/dst/proto. This
882: * is used during INITIAL-CONTACT processing (so no need to
883: * send a message to the peer).
884: */
885: void
886: deleteallph2(src, dst, proto_id)
887: struct sockaddr *src, *dst;
888: u_int proto_id;
889: {
890: struct ph2handle *iph2, *next;
891: struct saproto *pr;
892:
893: for (iph2 = LIST_FIRST(&ph2tree); iph2 != NULL; iph2 = next) {
894: next = LIST_NEXT(iph2, chain);
895: if (iph2->proposal == NULL && iph2->approval == NULL)
896: continue;
897: if (iph2->approval != NULL) {
898: for (pr = iph2->approval->head; pr != NULL;
899: pr = pr->next) {
900: if (proto_id == pr->proto_id)
901: goto zap_it;
902: }
903: } else if (iph2->proposal != NULL) {
904: for (pr = iph2->proposal->head; pr != NULL;
905: pr = pr->next) {
906: if (proto_id == pr->proto_id)
907: goto zap_it;
908: }
909: }
910: continue;
911: zap_it:
912: remph2(iph2);
913: delph2(iph2);
914: }
915: }
916:
917: /* %%% */
918: void
919: bindph12(iph1, iph2)
920: struct ph1handle *iph1;
921: struct ph2handle *iph2;
922: {
923: unbindph12(iph2);
924:
925: iph2->ph1 = iph1;
926: iph1->ph2cnt++;
927: LIST_INSERT_HEAD(&iph1->ph2tree, iph2, ph1bind);
928: }
929:
930: void
931: unbindph12(iph2)
932: struct ph2handle *iph2;
933: {
934: if (iph2->ph1 != NULL) {
935: LIST_REMOVE(iph2, ph1bind);
936: iph2->ph1->ph2cnt--;
937: iph2->ph1 = NULL;
938: }
939: }
940:
941: /* %%% management contacted list */
942: /*
943: * search contacted list.
944: */
945: struct contacted *
946: getcontacted(remote)
947: struct sockaddr *remote;
948: {
949: struct contacted *p;
950:
951: LIST_FOREACH(p, &ctdtree, chain) {
952: if (cmpsaddr(remote, p->remote) <= CMPSADDR_WILDPORT_MATCH)
953: return p;
954: }
955:
956: return NULL;
957: }
958:
959: /*
960: * create new isakmp Phase 2 status record to handle isakmp in Phase2
961: */
962: int
963: inscontacted(remote)
964: struct sockaddr *remote;
965: {
966: struct contacted *new;
967:
968: /* create new iph2 */
969: new = racoon_calloc(1, sizeof(*new));
970: if (new == NULL)
971: return -1;
972:
973: new->remote = dupsaddr(remote);
974: if (new->remote == NULL) {
975: plog(LLV_ERROR, LOCATION, NULL,
976: "failed to allocate buffer.\n");
977: racoon_free(new);
978: return -1;
979: }
980:
981: LIST_INSERT_HEAD(&ctdtree, new, chain);
982:
983: return 0;
984: }
985:
986: void
987: remcontacted(remote)
988: struct sockaddr *remote;
989: {
990: struct contacted *p, *next;
991:
992: for (p = LIST_FIRST(&ctdtree); p; p = next) {
993: next = LIST_NEXT(p, chain);
994:
995: if (cmpsaddr(remote, p->remote) <= CMPSADDR_WILDPORT_MATCH) {
996: LIST_REMOVE(p, chain);
997: racoon_free(p->remote);
998: racoon_free(p);
999: break;
1000: }
1001: }
1002: }
1003:
1004: void
1005: initctdtree()
1006: {
1007: LIST_INIT(&ctdtree);
1008: }
1009:
1010: /*
1011: * check the response has been sent to the peer. when not, simply reply
1012: * the buffered packet to the peer.
1013: * OUT:
1014: * 0: the packet is received at the first time.
1015: * 1: the packet was processed before.
1016: * 2: the packet was processed before, but the address mismatches.
1017: * -1: error happened.
1018: */
1019: int
1020: check_recvdpkt(remote, local, rbuf)
1021: struct sockaddr *remote, *local;
1022: vchar_t *rbuf;
1023: {
1024: vchar_t *hash;
1025: struct recvdpkt *r;
1026: struct timeval now, diff;
1027: int len, s;
1028:
1029: hash = eay_md5_one(rbuf);
1030: if (!hash) {
1031: plog(LLV_ERROR, LOCATION, NULL,
1032: "failed to allocate buffer.\n");
1033: return -1;
1034: }
1035:
1036: LIST_FOREACH(r, &rcptree, chain) {
1037: if (memcmp(hash->v, r->hash->v, r->hash->l) == 0)
1038: break;
1039: }
1040: vfree(hash);
1041:
1042: /* this is the first time to receive the packet */
1043: if (r == NULL)
1044: return 0;
1045:
1046: /*
1047: * the packet was processed before, but the remote address mismatches.
1048: */
1049: if (cmpsaddr(remote, r->remote) != CMPSADDR_MATCH)
1050: return 2;
1051:
1052: /*
1053: * it should not check the local address because the packet
1054: * may arrive at other interface.
1055: */
1056:
1057: /* check the previous time to send */
1058: sched_get_monotonic_time(&now);
1059: timersub(&now, &r->time_send, &diff);
1060: if (diff.tv_sec == 0) {
1061: plog(LLV_WARNING, LOCATION, NULL,
1062: "the packet retransmitted in a short time from %s\n",
1063: saddr2str(remote));
1064: /*XXX should it be error ? */
1065: }
1066:
1067: /* select the socket to be sent */
1068: s = myaddr_getfd(r->local);
1069: if (s == -1)
1070: return -1;
1071:
1072: /* resend the packet if needed */
1073: len = sendfromto(s, r->sendbuf->v, r->sendbuf->l,
1074: r->local, r->remote, lcconf->count_persend);
1075: if (len == -1) {
1076: plog(LLV_ERROR, LOCATION, NULL, "sendfromto failed\n");
1077: return -1;
1078: }
1079:
1080: /* check the retry counter */
1081: r->retry_counter--;
1082: if (r->retry_counter <= 0) {
1083: rem_recvdpkt(r);
1084: del_recvdpkt(r);
1085: plog(LLV_DEBUG, LOCATION, NULL,
1086: "deleted the retransmission packet to %s.\n",
1087: saddr2str(remote));
1088: } else
1089: r->time_send = now;
1090:
1091: return 1;
1092: }
1093:
1094: /*
1095: * adding a hash of received packet into the received list.
1096: */
1097: int
1098: add_recvdpkt(remote, local, sbuf, rbuf)
1099: struct sockaddr *remote, *local;
1100: vchar_t *sbuf, *rbuf;
1101: {
1102: struct recvdpkt *new = NULL;
1103:
1104: if (lcconf->retry_counter == 0) {
1105: /* no need to add it */
1106: return 0;
1107: }
1108:
1109: new = racoon_calloc(1, sizeof(*new));
1110: if (!new) {
1111: plog(LLV_ERROR, LOCATION, NULL,
1112: "failed to allocate buffer.\n");
1113: return -1;
1114: }
1115:
1116: new->hash = eay_md5_one(rbuf);
1117: if (!new->hash) {
1118: plog(LLV_ERROR, LOCATION, NULL,
1119: "failed to allocate buffer.\n");
1120: del_recvdpkt(new);
1121: return -1;
1122: }
1123: new->remote = dupsaddr(remote);
1124: if (new->remote == NULL) {
1125: plog(LLV_ERROR, LOCATION, NULL,
1126: "failed to allocate buffer.\n");
1127: del_recvdpkt(new);
1128: return -1;
1129: }
1130: new->local = dupsaddr(local);
1131: if (new->local == NULL) {
1132: plog(LLV_ERROR, LOCATION, NULL,
1133: "failed to allocate buffer.\n");
1134: del_recvdpkt(new);
1135: return -1;
1136: }
1137: new->sendbuf = vdup(sbuf);
1138: if (new->sendbuf == NULL) {
1139: plog(LLV_ERROR, LOCATION, NULL,
1140: "failed to allocate buffer.\n");
1141: del_recvdpkt(new);
1142: return -1;
1143: }
1144:
1145: new->retry_counter = lcconf->retry_counter;
1146: sched_get_monotonic_time(&new->time_send);
1147:
1148: LIST_INSERT_HEAD(&rcptree, new, chain);
1149:
1150: return 0;
1151: }
1152:
1153: void
1154: del_recvdpkt(r)
1155: struct recvdpkt *r;
1156: {
1157: if (r->remote)
1158: racoon_free(r->remote);
1159: if (r->local)
1160: racoon_free(r->local);
1161: if (r->hash)
1162: vfree(r->hash);
1163: if (r->sendbuf)
1164: vfree(r->sendbuf);
1165: racoon_free(r);
1166: }
1167:
1168: void
1169: rem_recvdpkt(r)
1170: struct recvdpkt *r;
1171: {
1172: LIST_REMOVE(r, chain);
1173: }
1174:
1175: static void
1176: sweep_recvdpkt(dummy)
1177: struct sched *dummy;
1178: {
1179: struct recvdpkt *r, *next;
1180: struct timeval now, diff, sweep;
1181:
1182: sched_get_monotonic_time(&now);
1183:
1184: /* calculate sweep time; delete entries older than this */
1185: diff.tv_sec = lcconf->retry_counter * lcconf->retry_interval;
1186: diff.tv_usec = 0;
1187: timersub(&now, &diff, &sweep);
1188:
1189: for (r = LIST_FIRST(&rcptree); r; r = next) {
1190: next = LIST_NEXT(r, chain);
1191:
1192: if (timercmp(&r->time_send, &sweep, <)) {
1193: rem_recvdpkt(r);
1194: del_recvdpkt(r);
1195: }
1196: }
1197:
1198: sched_schedule(&sc_sweep, diff.tv_sec, sweep_recvdpkt);
1199: }
1200:
1201: void
1202: init_recvdpkt()
1203: {
1204: time_t lt = lcconf->retry_counter * lcconf->retry_interval;
1205:
1206: LIST_INIT(&rcptree);
1207:
1208: sched_schedule(&sc_sweep, lt, sweep_recvdpkt);
1209: }
1210:
1211: #ifdef ENABLE_HYBRID
1212: /*
1213: * Retruns 0 if the address was obtained by ISAKMP mode config, 1 otherwise
1214: * This should be in isakmp_cfg.c but ph1tree being private, it must be there
1215: */
1216: int
1217: exclude_cfg_addr(addr)
1218: const struct sockaddr *addr;
1219: {
1220: struct ph1handle *p;
1221: struct sockaddr_in *sin;
1222:
1223: LIST_FOREACH(p, &ph1tree, chain) {
1224: if ((p->mode_cfg != NULL) &&
1225: (p->mode_cfg->flags & ISAKMP_CFG_GOT_ADDR4) &&
1226: (addr->sa_family == AF_INET)) {
1227: sin = (struct sockaddr_in *)addr;
1228: if (sin->sin_addr.s_addr == p->mode_cfg->addr4.s_addr)
1229: return 0;
1230: }
1231: }
1232:
1233: return 1;
1234: }
1235: #endif
1236:
1237:
1238:
1239: /*
1240: * Reload conf code
1241: */
1242: static int revalidate_ph2(struct ph2handle *iph2){
1243: struct sainfoalg *alg;
1244: int found, check_level;
1245: struct sainfo *sainfo;
1246: struct saprop *approval;
1247: struct ph1handle *iph1;
1248:
1249: /*
1250: * Get the new sainfo using values of the old one
1251: */
1252: if (iph2->sainfo != NULL) {
1253: iph2->sainfo = getsainfo(iph2->sainfo->idsrc,
1254: iph2->sainfo->iddst, iph2->sainfo->id_i,
1255: NULL, iph2->sainfo->remoteid);
1256: }
1257: approval = iph2->approval;
1258: sainfo = iph2->sainfo;
1259:
1260: if (sainfo == NULL) {
1261: /*
1262: * Sainfo has been removed
1263: */
1264: plog(LLV_DEBUG, LOCATION, NULL,
1265: "Reload: No sainfo for ph2\n");
1266: return 0;
1267: }
1268:
1269: if (approval == NULL) {
1270: /*
1271: * XXX why do we have a NULL approval sometimes ???
1272: */
1273: plog(LLV_DEBUG, LOCATION, NULL,
1274: "No approval found !\n");
1275: return 0;
1276: }
1277:
1278: /*
1279: * Don't care about proposals, should we do something ?
1280: * We have to keep iph2->proposal valid at least for initiator,
1281: * for pk_sendgetspi()
1282: */
1283:
1284: plog(LLV_DEBUG, LOCATION, NULL, "active single bundle:\n");
1285: printsaprop0(LLV_DEBUG, approval);
1286:
1287: /*
1288: * Validate approval against sainfo
1289: * Note: we must have an updated ph1->rmconf before doing that,
1290: * we'll set check_level to EXACT if we don't have a ph1
1291: * XXX try tu find the new remote section to get the new check level ?
1292: * XXX lifebyte
1293: */
1294: if (iph2->ph1 != NULL)
1295: iph1=iph2->ph1;
1296: else
1297: iph1=getph1byaddr(iph2->src, iph2->dst, 0);
1298:
1299: if(iph1 != NULL && iph1->rmconf != NULL) {
1300: check_level = iph1->rmconf->pcheck_level;
1301: } else {
1302: if(iph1 != NULL)
1303: plog(LLV_DEBUG, LOCATION, NULL, "No phase1 rmconf found !\n");
1304: else
1305: plog(LLV_DEBUG, LOCATION, NULL, "No phase1 found !\n");
1306: check_level = PROP_CHECK_EXACT;
1307: }
1308:
1309: switch (check_level) {
1310: case PROP_CHECK_OBEY:
1311: plog(LLV_DEBUG, LOCATION, NULL,
1312: "Reload: OBEY for ph2, ok\n");
1313: return 1;
1314: break;
1315:
1316: case PROP_CHECK_STRICT:
1317: /* FALLTHROUGH */
1318: case PROP_CHECK_CLAIM:
1319: if (sainfo->lifetime < approval->lifetime) {
1320: plog(LLV_DEBUG, LOCATION, NULL,
1321: "Reload: lifetime mismatch\n");
1322: return 0;
1323: }
1324:
1325: #if 0
1326: /* Lifebyte is deprecated, just ignore it
1327: */
1328: if (sainfo->lifebyte < approval->lifebyte) {
1329: plog(LLV_DEBUG, LOCATION, NULL,
1330: "Reload: lifebyte mismatch\n");
1331: return 0;
1332: }
1333: #endif
1334:
1335: if (sainfo->pfs_group &&
1336: sainfo->pfs_group != approval->pfs_group) {
1337: plog(LLV_DEBUG, LOCATION, NULL,
1338: "Reload: PFS group mismatch\n");
1339: return 0;
1340: }
1341: break;
1342:
1343: case PROP_CHECK_EXACT:
1344: if (sainfo->lifetime != approval->lifetime ||
1345: #if 0
1346: /* Lifebyte is deprecated, just ignore it
1347: */
1348: sainfo->lifebyte != approval->lifebyte ||
1349: #endif
1350: sainfo->pfs_group != iph2->approval->pfs_group) {
1351: plog(LLV_DEBUG, LOCATION, NULL,
1352: "Reload: lifetime | pfs mismatch\n");
1353: return 0;
1354: }
1355: break;
1356:
1357: default:
1358: plog(LLV_DEBUG, LOCATION, NULL,
1359: "Reload: Shouldn't be here !\n");
1360: return 0;
1361: break;
1362: }
1363:
1364: for (alg = sainfo->algs[algclass_ipsec_auth]; alg; alg = alg->next) {
1365: if (alg->alg == approval->head->head->authtype)
1366: break;
1367: }
1368: if (alg == NULL) {
1369: plog(LLV_DEBUG, LOCATION, NULL,
1370: "Reload: alg == NULL (auth)\n");
1371: return 0;
1372: }
1373:
1374: found = 0;
1375: for (alg = sainfo->algs[algclass_ipsec_enc];
1376: (found == 0 && alg != NULL); alg = alg->next) {
1377: plog(LLV_DEBUG, LOCATION, NULL,
1378: "Reload: next ph2 enc alg...\n");
1379:
1380: if (alg->alg != approval->head->head->trns_id){
1381: plog(LLV_DEBUG, LOCATION, NULL,
1382: "Reload: encmode mismatch (%d / %d)\n",
1383: alg->alg, approval->head->head->trns_id);
1384: continue;
1385: }
1386:
1387: switch (check_level){
1388: /* PROP_CHECK_STRICT cannot happen here */
1389: case PROP_CHECK_EXACT:
1390: if (alg->encklen != approval->head->head->encklen) {
1391: plog(LLV_DEBUG, LOCATION, NULL,
1392: "Reload: enclen mismatch\n");
1393: continue;
1394: }
1395: break;
1396:
1397: case PROP_CHECK_CLAIM:
1398: /* FALLTHROUGH */
1399: case PROP_CHECK_STRICT:
1400: if (alg->encklen > approval->head->head->encklen) {
1401: plog(LLV_DEBUG, LOCATION, NULL,
1402: "Reload: enclen mismatch\n");
1403: continue;
1404: }
1405: break;
1406:
1407: default:
1408: plog(LLV_ERROR, LOCATION, NULL,
1409: "unexpected check_level\n");
1410: continue;
1411: break;
1412: }
1413: found = 1;
1414: }
1415:
1416: if (!found){
1417: plog(LLV_DEBUG, LOCATION, NULL,
1418: "Reload: No valid enc\n");
1419: return 0;
1420: }
1421:
1422: /*
1423: * XXX comp
1424: */
1425: plog(LLV_DEBUG, LOCATION, NULL,
1426: "Reload: ph2 check ok\n");
1427:
1428: return 1;
1429: }
1430:
1431:
1432: static void
1433: remove_ph2(struct ph2handle *iph2)
1434: {
1435: u_int32_t spis[2];
1436:
1437: if(iph2 == NULL)
1438: return;
1439:
1440: plog(LLV_DEBUG, LOCATION, NULL,
1441: "Deleting a Ph2...\n");
1442:
1443: if (iph2->status == PHASE2ST_ESTABLISHED)
1444: isakmp_info_send_d2(iph2);
1445:
1446: if(iph2->approval != NULL && iph2->approval->head != NULL){
1447: spis[0]=iph2->approval->head->spi;
1448: spis[1]=iph2->approval->head->spi_p;
1449:
1450: /* purge_ipsec_spi() will do all the work:
1451: * - delete SPIs in kernel
1452: * - delete generated SPD
1453: * - unbind / rem / del ph2
1454: */
1455: purge_ipsec_spi(iph2->dst, iph2->approval->head->proto_id,
1456: spis, 2);
1457: }else{
1458: remph2(iph2);
1459: delph2(iph2);
1460: }
1461: }
1462:
1463: static void remove_ph1(struct ph1handle *iph1){
1464: struct ph2handle *iph2, *iph2_next;
1465:
1466: if(iph1 == NULL)
1467: return;
1468:
1469: plog(LLV_DEBUG, LOCATION, NULL,
1470: "Removing PH1...\n");
1471:
1472: if (iph1->status == PHASE1ST_ESTABLISHED ||
1473: iph1->status == PHASE1ST_DYING) {
1474: for (iph2 = LIST_FIRST(&iph1->ph2tree); iph2; iph2 = iph2_next) {
1475: iph2_next = LIST_NEXT(iph2, ph1bind);
1476: remove_ph2(iph2);
1477: }
1478: isakmp_info_send_d1(iph1);
1479: }
1480: iph1->status = PHASE1ST_EXPIRED;
1481: /* directly call isakmp_ph1delete to avoid as possible a race
1482: * condition where we'll try to access iph1->rmconf after it has
1483: * freed
1484: */
1485: isakmp_ph1delete(iph1);
1486: }
1487:
1488:
1489: static int revalidate_ph1tree_rmconf(void)
1490: {
1491: struct ph1handle *p, *next;
1492: struct remoteconf *rmconf;
1493:
1494: for (p = LIST_FIRST(&ph1tree); p; p = next) {
1495: next = LIST_NEXT(p, chain);
1496:
1497: if (p->status >= PHASE1ST_EXPIRED)
1498: continue;
1499: if (p->rmconf == NULL)
1500: continue;
1501:
1502: rmconf = getrmconf_by_ph1(p);
1503: if (rmconf == NULL || rmconf == RMCONF_ERR_MULTIPLE)
1504: remove_ph1(p);
1505: else
1506: p->rmconf = rmconf;
1507: }
1508:
1509: return 1;
1510: }
1511:
1512: static int revalidate_ph2tree(void){
1513: struct ph2handle *p, *next;
1514:
1515: for (p = LIST_FIRST(&ph2tree); p; p = next) {
1516: next = LIST_NEXT(p, chain);
1517:
1518: if (p->status == PHASE2ST_EXPIRED)
1519: continue;
1520:
1521: if(!revalidate_ph2(p)){
1522: plog(LLV_DEBUG, LOCATION, NULL,
1523: "PH2 not validated, removing it\n");
1524: remove_ph2(p);
1525: }
1526: }
1527:
1528: return 1;
1529: }
1530:
1531: int
1532: revalidate_ph12(void)
1533: {
1534:
1535: revalidate_ph1tree_rmconf();
1536: revalidate_ph2tree();
1537:
1538: return 1;
1539: }
1540:
1541: #ifdef ENABLE_HYBRID
1542: struct ph1handle *
1543: getph1bylogin(login)
1544: char *login;
1545: {
1546: struct ph1handle *p;
1547:
1548: LIST_FOREACH(p, &ph1tree, chain) {
1549: if (p->mode_cfg == NULL)
1550: continue;
1551: if (strncmp(p->mode_cfg->login, login, LOGINLEN) == 0)
1552: return p;
1553: }
1554:
1555: return NULL;
1556: }
1557:
1558: int
1559: purgeph1bylogin(login)
1560: char *login;
1561: {
1562: struct ph1handle *p, *next;
1563: int found = 0;
1564:
1565: for (p = LIST_FIRST(&ph1tree); p; p = next) {
1566: next = LIST_NEXT(p, chain);
1567:
1568: if (p->mode_cfg == NULL)
1569: continue;
1570: if (strncmp(p->mode_cfg->login, login, LOGINLEN) == 0) {
1571: if (p->status >= PHASE1ST_EXPIRED)
1572: continue;
1573:
1574: if (p->status >= PHASE1ST_ESTABLISHED)
1575: isakmp_info_send_d1(p);
1576: purge_remote(p);
1577: found++;
1578: }
1579: }
1580:
1581: return found;
1582: }
1583: #endif
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