isakmp_inf.c revision 0a1907d434839af6a9cb6329bbde60b237bf53dc
10a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* $NetBSD: isakmp_inf.c,v 1.14.4.14 2008/07/11 08:08:42 tteras Exp $ */ 20a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 30a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Id: isakmp_inf.c,v 1.44 2006/05/06 20:45:52 manubsd Exp */ 40a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 50a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 60a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 70a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * All rights reserved. 80a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 90a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Redistribution and use in source and binary forms, with or without 100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * modification, are permitted provided that the following conditions 110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * are met: 120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 1. Redistributions of source code must retain the above copyright 130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * notice, this list of conditions and the following disclaimer. 140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 2. Redistributions in binary form must reproduce the above copyright 150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * notice, this list of conditions and the following disclaimer in the 160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * documentation and/or other materials provided with the distribution. 170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 3. Neither the name of the project nor the names of its contributors 180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * may be used to endorse or promote products derived from this software 190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * without specific prior written permission. 200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * SUCH DAMAGE. 320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "config.h" 350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <sys/types.h> 370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <sys/param.h> 380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <sys/socket.h> 390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <net/pfkeyv2.h> 410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <netinet/in.h> 420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <sys/queue.h> 430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include PATH_IPSEC_H 440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <stdlib.h> 460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <stdio.h> 470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <string.h> 480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <errno.h> 490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if TIME_WITH_SYS_TIME 500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# include <sys/time.h> 510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# include <time.h> 520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# if HAVE_SYS_TIME_H 540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# include <sys/time.h> 550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# else 560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# include <time.h> 570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang# endif 580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_HYBRID 600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include <resolv.h> 610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "libpfkey.h" 640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "var.h" 660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "vmbuf.h" 670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "schedule.h" 680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "str2val.h" 690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "misc.h" 700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "plog.h" 710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "debug.h" 720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "localconf.h" 740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "remoteconf.h" 750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "sockmisc.h" 760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "handler.h" 770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "policy.h" 780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "proposal.h" 790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "isakmp_var.h" 800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "evt.h" 810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "isakmp.h" 820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_HYBRID 830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "isakmp_xauth.h" 840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "isakmp_unity.h" 850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "isakmp_cfg.h" 860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "isakmp_inf.h" 880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "oakley.h" 890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "ipsec_doi.h" 900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "crypto_openssl.h" 910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "pfkey.h" 920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "policy.h" 930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "algorithm.h" 940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "proposal.h" 950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "admin.h" 960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "strnames.h" 970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_NATT 980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#include "nattraversal.h" 990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 1000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* information exchange */ 1020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int isakmp_info_recv_n (struct ph1handle *, struct isakmp_pl_n *, u_int32_t, int); 1030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int isakmp_info_recv_d (struct ph1handle *, struct isakmp_pl_d *, u_int32_t, int); 1040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_DPD 1060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int isakmp_info_recv_r_u __P((struct ph1handle *, 1070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_ru *, u_int32_t)); 1080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int isakmp_info_recv_r_u_ack __P((struct ph1handle *, 1090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_ru *, u_int32_t)); 1100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic void isakmp_info_send_r_u __P((void *)); 1110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 1120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic void purge_isakmp_spi __P((int, isakmp_index *, size_t)); 1140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic void info_recv_initialcontact __P((struct ph1handle *)); 1150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* %%% 1170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Information Exchange 1180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 1190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 1200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * receive Information 1210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 1220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 1230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_recv(iph1, msg0) 1240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 1250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *msg0; 1260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 1270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *msg = NULL; 1280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *pbuf = NULL; 1290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t msgid = 0; 1300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = -1; 1310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp *isakmp; 1320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_gen *gen; 1330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_parse_t *pa, *pap; 1340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang void *p; 1350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *hash, *payload; 1360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_gen *nd; 1370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int8_t np; 1380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int encrypted; 1390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int flag; 1400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, "receive Information.\n"); 1420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang encrypted = ISSET(((struct isakmp *)msg0->v)->flags, ISAKMP_FLAG_E); 1440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msgid = ((struct isakmp *)msg0->v)->msgid; 1450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Use new IV to decrypt Informational message. */ 1470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (encrypted) { 1480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_ivm *ivm; 1490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1->ivm == NULL) { 1510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, "iph1->ivm == NULL\n"); 1520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return -1; 1530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 1540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* compute IV */ 1560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ivm = oakley_newiv2(iph1, ((struct isakmp *)msg0->v)->msgid); 1570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ivm == NULL) 1580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return -1; 1590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = oakley_do_decrypt(iph1, msg0, ivm->iv, ivm->ive); 1610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang oakley_delivm(ivm); 1620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msg == NULL) 1630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return -1; 1640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else 1660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = vdup(msg0); 1670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Safety check */ 1690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msg->l < sizeof(*isakmp) + sizeof(*gen)) { 1700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 1710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore information because the " 1720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "message is way too short - %zu byte(s).\n", msg->l); 1730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 1740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 1750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp = (struct isakmp *)msg->v; 1770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang gen = (struct isakmp_gen *)((caddr_t)isakmp + sizeof(struct isakmp)); 1780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang np = gen->np; 1790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (encrypted) { 1810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (isakmp->np != ISAKMP_NPTYPE_HASH) { 1820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 1830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore information because the" 1840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "message has no hash payload.\n"); 1850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 1860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 1870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1->status != PHASE1ST_ESTABLISHED) { 1890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 1900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore information because ISAKMP-SA" 1910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "has not been established yet.\n"); 1920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 1930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 1940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 1950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Safety check */ 1960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msg->l < sizeof(*isakmp) + ntohs(gen->len) + sizeof(*nd)) { 1970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 1980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore information because the " 1990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "message is too short - %zu byte(s).\n", msg->l); 2000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang p = (caddr_t) gen + sizeof(struct isakmp_gen); 2040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang nd = (struct isakmp_gen *) ((caddr_t) gen + ntohs(gen->len)); 2050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* nd length check */ 2070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ntohs(nd->len) > msg->l - (sizeof(struct isakmp) + 2080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ntohs(gen->len))) { 2090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 2100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "too long payload length (broken message?)\n"); 2110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ntohs(nd->len) < sizeof(*nd)) { 2150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 2160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "too short payload length (broken message?)\n"); 2170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(ntohs(nd->len)); 2210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 2220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 2230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "cannot allocate memory\n"); 2240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(payload->v, (caddr_t) nd, ntohs(nd->len)); 2280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* compute HASH */ 2300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang hash = oakley_compute_hash1(iph1, isakmp->msgid, payload); 2310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (hash == NULL) { 2320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 2330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "cannot compute hash\n"); 2340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 2360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ntohs(gen->len) - sizeof(struct isakmp_gen) != hash->l) { 2400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 2410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore information due to hash length mismatch\n"); 2420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(hash); 2440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 2450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (memcmp(p, hash->v, hash->l) != 0) { 2490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 2500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore information due to hash mismatch\n"); 2510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(hash); 2530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 2540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, "hash validated.\n"); 2580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(hash); 2600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 2610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 2620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* make sure the packet was encrypted after the beginning of phase 1. */ 2630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang switch (iph1->etype) { 2640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_ETYPE_AGG: 2650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_ETYPE_BASE: 2660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_ETYPE_IDENT: 2670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((iph1->side == INITIATOR && iph1->status < PHASE1ST_MSG3SENT) 2680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang || (iph1->side == RESPONDER && iph1->status < PHASE1ST_MSG2SENT)) { 2690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 2700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /*FALLTHRU*/ 2720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang default: 2730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 2740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "%s message must be encrypted\n", 2750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_nptype(np)); 2760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = 0; 2770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (!(pbuf = isakmp_parse(msg))) { 2820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = -1; 2830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 2840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 2850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 2860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = 0; 2870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (pa = (struct isakmp_parse_t *)pbuf->v; pa->type; pa++) { 2880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang switch (pa->type) { 2890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NPTYPE_HASH: 2900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Handled above */ 2910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 2920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NPTYPE_N: 2930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_recv_n(iph1, 2940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (struct isakmp_pl_n *)pa->ptr, 2950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msgid, encrypted); 2960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 2970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NPTYPE_D: 2980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_recv_d(iph1, 2990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (struct isakmp_pl_d *)pa->ptr, 3000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msgid, encrypted); 3010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NPTYPE_NONCE: 3030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX to be 6.4.2 ike-01.txt */ 3040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX IV is to be synchronized. */ 3050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 3060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore Acknowledged Informational\n"); 3070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang default: 3090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* don't send information, see isakmp_ident_r1() */ 3100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = 0; 3110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 3120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "reject the packet, " 3130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "received unexpected payload type %s.\n", 3140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_nptype(gen->np)); 3150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 3160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(error < 0) { 3170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 3190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang flag |= error; 3200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 3210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 3220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang end: 3230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msg != NULL) 3240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(msg); 3250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (pbuf != NULL) 3260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(pbuf); 3270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 3280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 3290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 3310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * handling of Notification payload 3320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 3330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int 3340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_recv_n(iph1, notify, msgid, encrypted) 3350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 3360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_n *notify; 3370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t msgid; 3380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int encrypted; 3390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 3400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int type; 3410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *pbuf; 3420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *ndata; 3430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang char *nraw; 3440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang size_t l; 3450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang char *spi; 3460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang type = ntohs(notify->type); 3480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 3490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang switch (type) { 3500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_CONNECTED: 3510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_RESPONDER_LIFETIME: 3520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_REPLAY_STATUS: 3530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_HYBRID 3540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_UNITY_HEARTBEAT: 3550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 3560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* do something */ 3570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_INITIAL_CONTACT: 3590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (encrypted) 3600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang info_recv_initialcontact(iph1); 3610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 3620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_DPD 3640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_R_U_THERE: 3650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (encrypted) 3660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return isakmp_info_recv_r_u(iph1, 3670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (struct isakmp_pl_ru *)notify, msgid); 3680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_R_U_THERE_ACK: 3700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (encrypted) 3710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return isakmp_info_recv_r_u_ack(iph1, 3720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (struct isakmp_pl_ru *)notify, msgid); 3730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 3740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 3750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang default: 3760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang { 3770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX there is a potential of dos attack. */ 3780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(type >= ISAKMP_NTYPE_MINERROR && 3790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang type <= ISAKMP_NTYPE_MAXERROR) { 3800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msgid == 0) { 3810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* don't think this realy deletes ph1 ? */ 3820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 3830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete phase1 handle.\n"); 3840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return -1; 3850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 3860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (getph2bymsgid(iph1, msgid) == NULL) { 3870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 3880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "fatal %s notify messsage, " 3890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "phase1 should be deleted.\n", 3900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_notify_msg(type)); 3910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 3920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 3930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "fatal %s notify messsage, " 3940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "phase2 should be deleted.\n", 3950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_notify_msg(type)); 3960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 3970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 3980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 3990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 4000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "unhandled notify message %s, " 4010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "no phase2 handle found.\n", 4020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_notify_msg(type)); 4030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 4060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* get spi if specified and allocate */ 4090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(notify->spi_size > 0) { 4100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ntohs(notify->h.len) < sizeof(*notify) + notify->spi_size) { 4110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 4120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "invalid spi_size in notification payload.\n"); 4130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return -1; 4140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang spi = val2str((char *)(notify + 1), notify->spi_size); 4160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 4180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "notification message %d:%s, " 4190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "doi=%d proto_id=%d spi=%s(size=%d).\n", 4200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang type, s_isakmp_notify_msg(type), 4210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ntohl(notify->doi), notify->proto_id, spi, notify->spi_size); 4220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang racoon_free(spi); 4240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Send the message data to the logs */ 4270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(type >= ISAKMP_NTYPE_MINERROR && 4280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang type <= ISAKMP_NTYPE_MAXERROR) { 4290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang l = ntohs(notify->h.len) - sizeof(*notify) - notify->spi_size; 4300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (l > 0) { 4310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang nraw = (char*)notify; 4320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang nraw += sizeof(*notify) + notify->spi_size; 4330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((ndata = vmalloc(l)) != NULL) { 4340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(ndata->v, nraw, ndata->l); 4350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 4360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "Message: '%s'.\n", 4370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang binsanitize(ndata->v, ndata->l)); 4380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(ndata); 4390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 4400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 4410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "Cannot allocate memory\n"); 4420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 4460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 4470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 4490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * handling of Deletion payload 4500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 4510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int 4520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_recv_d(iph1, delete, msgid, encrypted) 4530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 4540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_d *delete; 4550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t msgid; 4560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int encrypted; 4570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 4580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen, num_spi; 4590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *pbuf; 4600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int protected = 0; 4610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *del_ph1; 4620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph2handle *iph2; 4630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang union { 4640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t spi32; 4650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int16_t spi16[2]; 4660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } spi; 4670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ntohl(delete->doi) != IPSEC_DOI) { 4690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 4700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete payload with invalid doi:%d.\n", 4710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ntohl(delete->doi)); 4720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_HYBRID 4730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 4740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * At deconnexion time, Cisco VPN client does this 4750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * with a zero DOI. Don't give up in that situation. 4760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 4770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (((iph1->mode_cfg->flags & 4780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ISAKMP_CFG_VENDORID_UNITY) == 0) || (delete->doi != 0)) 4790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 4800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#else 4810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 4820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 4830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang num_spi = ntohs(delete->num_spi); 4860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = ntohs(delete->h.len) - sizeof(struct isakmp_pl_d); 4870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (tlen != num_spi * delete->spi_size) { 4890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 4900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "deletion payload with invalid length.\n"); 4910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 4920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 4930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 4950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete payload for protocol %s\n", 4960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_ipsecdoi_proto(delete->proto_id)); 4970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 4980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(!iph1->rmconf->weak_phase1_check && !encrypted) { 4990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_WARNING, LOCATION, iph1->remote, 5000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "Ignoring unencrypted delete payload " 5010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "(check the weak_phase1_check option)\n"); 5020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang switch (delete->proto_id) { 5060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case IPSECDOI_PROTO_ISAKMP: 5070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (delete->spi_size != sizeof(isakmp_index)) { 5080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 5090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete payload with strange spi " 5100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "size %d(proto_id:%d)\n", 5110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delete->spi_size, delete->proto_id); 5120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang del_ph1=getph1byindex((isakmp_index *)(delete + 1)); 5160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(del_ph1 != NULL){ 5170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang EVT_PUSH(del_ph1->local, del_ph1->remote, 5190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang EVTT_PEERPH1_NOPROP, NULL); 5200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (del_ph1->scr) 5210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SCHED_KILL(del_ph1->scr); 5220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 5240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Do not delete IPsec SAs when receiving an IKE delete notification. 5250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Just delete the IKE SA. 5260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 5270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_ph1expire(del_ph1); 5280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 5300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case IPSECDOI_PROTO_IPSEC_AH: 5320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case IPSECDOI_PROTO_IPSEC_ESP: 5330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (delete->spi_size != sizeof(u_int32_t)) { 5340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 5350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete payload with strange spi " 5360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "size %d(proto_id:%d)\n", 5370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delete->spi_size, delete->proto_id); 5380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang EVT_PUSH(iph1->local, iph1->remote, 5410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang EVTT_PEER_DELETE, NULL); 5420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang purge_ipsec_spi(iph1->remote, delete->proto_id, 5430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang (u_int32_t *)(delete + 1), num_spi); 5440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 5450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case IPSECDOI_PROTO_IPCOMP: 5470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* need to handle both 16bit/32bit SPI */ 5480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memset(&spi, 0, sizeof(spi)); 5490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (delete->spi_size == sizeof(spi.spi16[1])) { 5500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(&spi.spi16[1], delete + 1, 5510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sizeof(spi.spi16[1])); 5520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else if (delete->spi_size == sizeof(spi.spi32)) 5530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(&spi.spi32, delete + 1, sizeof(spi.spi32)); 5540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else { 5550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 5560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete payload with strange spi " 5570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "size %d(proto_id:%d)\n", 5580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delete->spi_size, delete->proto_id); 5590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang purge_ipsec_spi(iph1->remote, delete->proto_id, 5620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang &spi.spi32, num_spi); 5630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 5640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang default: 5660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 5670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "deletion message received, " 5680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "invalid proto_id: %d\n", 5690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delete->proto_id); 5700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 5720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, "purged SAs.\n"); 5740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 5770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 5790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send Delete payload (for ISAKMP SA) in Informational exchange. 5800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 5810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 5820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_d1(iph1) 5830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 5840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 5850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_d *d; 5860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 5870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 5880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = 0; 5890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1->status != PHASE2ST_ESTABLISHED) 5910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 5920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* create delete payload */ 5940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 5950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* send SPIs of inbound SAs. */ 5960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX should send outbound SAs's ? */ 5970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*d) + sizeof(isakmp_index); 5980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 5990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 6000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 6010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer for payload.\n"); 6020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return errno; 6030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = (struct isakmp_pl_d *)payload->v; 6060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->h.np = ISAKMP_NPTYPE_NONE; 6070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->h.len = htons(tlen); 6080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->doi = htonl(IPSEC_DOI); 6090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->proto_id = IPSECDOI_PROTO_ISAKMP; 6100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->spi_size = sizeof(isakmp_index); 6110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->num_spi = htons(1); 6120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(d + 1, &iph1->index, sizeof(isakmp_index)); 6130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, 6150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ISAKMP_NPTYPE_D, 0); 6160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 6170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 6190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 6200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 6220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send Delete payload (for IPsec SA) in Informational exchange, based on 6230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * pfkey msg. It sends always single SPI. 6240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 6250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 6260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_d2(iph2) 6270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph2handle *iph2; 6280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 6290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 6300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct saproto *pr; 6310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_d *d; 6320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 6330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 6340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = 0; 6350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int8_t *spi; 6360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2->status != PHASE2ST_ESTABLISHED) 6380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 6390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 6410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * don't send delete information if there is no phase 1 handler. 6420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * It's nonsensical to negotiate phase 1 to send the information. 6430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 6440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1 = getph1byaddr(iph2->src, iph2->dst, 0); 6450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1 == NULL){ 6460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG2, LOCATION, NULL, 6470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "No ph1 handler found, could not send DELETE_SA\n"); 6480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 6490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* create delete payload */ 6520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (pr = iph2->approval->head; pr != NULL; pr = pr->next) { 6530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* send SPIs of inbound SAs. */ 6550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 6560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * XXX should I send outbound SAs's ? 6570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * I send inbound SAs's SPI only at the moment because I can't 6580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * decode any more if peer send encoded packet without aware of 6590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * deletion of SA. Outbound SAs don't come under the situation. 6600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 6610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*d) + pr->spisize; 6620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 6630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 6640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 6650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer for payload.\n"); 6660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return errno; 6670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d = (struct isakmp_pl_d *)payload->v; 6700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->h.np = ISAKMP_NPTYPE_NONE; 6710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->h.len = htons(tlen); 6720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->doi = htonl(IPSEC_DOI); 6730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->proto_id = pr->proto_id; 6740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->spi_size = pr->spisize; 6750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang d->num_spi = htons(1); 6760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 6770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * XXX SPI bits are left-filled, for use with IPComp. 6780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * we should be switching to variable-length spi field... 6790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 6800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang spi = (u_int8_t *)&pr->spi; 6810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang spi += sizeof(pr->spi); 6820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang spi -= pr->spisize; 6830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(d + 1, spi, pr->spisize); 6840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, 6860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ISAKMP_NPTYPE_D, 0); 6870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 6880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 6890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 6910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 6920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 6930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 6940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send Notification payload (for without ISAKMP SA) in Informational exchange 6950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 6960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 6970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_nx(isakmp, remote, local, type, data) 6980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp *isakmp; 6990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sockaddr *remote, *local; 7000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int type; 7010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *data; 7020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 7030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1 = NULL; 7040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct remoteconf *rmconf; 7050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 7060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 7070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = -1; 7080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_n *n; 7090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int spisiz = 0; /* see below */ 7100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* search appropreate configuration */ 7120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang rmconf = getrmconf(remote); 7130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (rmconf == NULL) { 7140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, remote, 7150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "no configuration found for peer address.\n"); 7160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 7170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 7180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* add new entry to isakmp status table. */ 7200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1 = newph1(); 7210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1 == NULL) 7220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return -1; 7230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(&iph1->index.i_ck, &isakmp->i_ck, sizeof(cookie_t)); 7250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_newcookie((char *)&iph1->index.r_ck, remote, local); 7260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->status = PHASE1ST_START; 7270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->rmconf = rmconf; 7280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->side = INITIATOR; 7290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->version = isakmp->v; 7300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->flags = 0; 7310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->msgid = 0; /* XXX */ 7320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_HYBRID 7330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((iph1->mode_cfg = isakmp_cfg_mkstate()) == NULL) 7340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 7350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 7360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_FRAG 7370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->frag = 0; 7380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->frag_chain = NULL; 7390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 7400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* copy remote address */ 7420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (copy_ph1addresses(iph1, rmconf, remote, local) < 0) 7430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 7440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*n) + spisiz; 7460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 7470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen += data->l; 7480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 7490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 7500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 7510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer to send.\n"); 7520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 7530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 7540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n = (struct isakmp_pl_n *)payload->v; 7560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.np = ISAKMP_NPTYPE_NONE; 7570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.len = htons(tlen); 7580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->doi = htonl(IPSEC_DOI); 7590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->proto_id = IPSECDOI_KEY_IKE; 7600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->spi_size = spisiz; 7610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->type = htons(type); 7620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (spisiz) 7630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memset(n + 1, 0, spisiz); /* XXX spisiz is always 0 */ 7640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 7650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy((caddr_t)(n + 1) + spisiz, data->v, data->l); 7660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, ISAKMP_NPTYPE_N, 0); 7680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 7690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang end: 7710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1 != NULL) 7720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph1(iph1); 7730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 7750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 7760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 7780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send Notification payload (for ISAKMP SA) in Informational exchange 7790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 7800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 7810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_n1(iph1, type, data) 7820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 7830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int type; 7840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *data; 7850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 7860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 7870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 7880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = 0; 7890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_n *n; 7900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int spisiz; 7910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 7920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 7930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * note on SPI size: which description is correct? I have chosen 7940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * this to be 0. 7950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 7960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * RFC2408 3.1, 2nd paragraph says: ISAKMP SA is identified by 7970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Initiator/Responder cookie and SPI has no meaning, SPI size = 0. 7980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * RFC2408 3.1, first paragraph on page 40: ISAKMP SA is identified 7990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * by cookie and SPI has no meaning, 0 <= SPI size <= 16. 8000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * RFC2407 4.6.3.3, INITIAL-CONTACT is required to set to 16. 8010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 8020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (type == ISAKMP_NTYPE_INITIAL_CONTACT) 8030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang spisiz = sizeof(isakmp_index); 8040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else 8050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang spisiz = 0; 8060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*n) + spisiz; 8080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 8090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen += data->l; 8100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 8110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 8120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 8130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer to send.\n"); 8140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return errno; 8150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n = (struct isakmp_pl_n *)payload->v; 8180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.np = ISAKMP_NPTYPE_NONE; 8190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.len = htons(tlen); 8200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->doi = htonl(iph1->rmconf->doitype); 8210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->proto_id = IPSECDOI_PROTO_ISAKMP; /* XXX to be configurable ? */ 8220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->spi_size = spisiz; 8230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->type = htons(type); 8240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (spisiz) 8250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(n + 1, &iph1->index, sizeof(isakmp_index)); 8260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 8270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy((caddr_t)(n + 1) + spisiz, data->v, data->l); 8280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, ISAKMP_NPTYPE_N, iph1->flags); 8300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 8310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 8330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 8340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 8360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send Notification payload (for IPsec SA) in Informational exchange 8370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 8380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 8390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_n2(iph2, type, data) 8400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph2handle *iph2; 8410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int type; 8420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *data; 8430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 8440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1 = iph2->ph1; 8450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 8460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 8470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = 0; 8480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_n *n; 8490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct saproto *pr; 8500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (!iph2->approval) 8520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return EINVAL; 8530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pr = iph2->approval->head; 8550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX must be get proper spi */ 8570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*n) + pr->spisize; 8580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 8590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen += data->l; 8600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 8610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 8620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 8630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer to send.\n"); 8640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return errno; 8650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 8660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n = (struct isakmp_pl_n *)payload->v; 8680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.np = ISAKMP_NPTYPE_NONE; 8690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.len = htons(tlen); 8700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->doi = htonl(IPSEC_DOI); /* IPSEC DOI (1) */ 8710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->proto_id = pr->proto_id; /* IPSEC AH/ESP/whatever*/ 8720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->spi_size = pr->spisize; 8730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->type = htons(type); 8740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *(u_int32_t *)(n + 1) = pr->spi; 8750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 8760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy((caddr_t)(n + 1) + pr->spisize, data->v, data->l); 8770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->flags |= ISAKMP_FLAG_E; /* XXX Should we do FLAG_A ? */ 8790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, ISAKMP_NPTYPE_N, iph2->flags); 8800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 8810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 8830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 8840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 8850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 8860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send Information 8870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * When ph1->skeyid_a == NULL, send message without encoding. 8880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 8890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 8900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_common(iph1, payload, np, flags) 8910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 8920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload; 8930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t np; 8940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int flags; 8950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 8960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph2handle *iph2 = NULL; 8970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *hash = NULL; 8980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp *isakmp; 8990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_gen *gen; 9000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang char *p; 9010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 9020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = -1; 9030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* add new entry to isakmp status table */ 9050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2 = newph2(); 9060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2 == NULL) 9070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 9080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->dst = dupsaddr(iph1->remote); 9100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2->dst == NULL) { 9110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 9120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 9130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->src = dupsaddr(iph1->local); 9150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2->src == NULL) { 9160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 9170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 9180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if (!defined(ENABLE_NATT)) || (defined(BROKEN_NATT)) 9200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (set_port(iph2->dst, 0) == NULL || 9210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang set_port(iph2->src, 0) == NULL) { 9220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 9230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "invalid family: %d\n", iph1->remote->sa_family); 9240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 9250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 9260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 9280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->ph1 = iph1; 9290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->side = INITIATOR; 9300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->status = PHASE2ST_START; 9310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->msgid = isakmp_newmsgid2(iph1); 9320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* get IV and HASH(1) if skeyid_a was generated. */ 9340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1->skeyid_a != NULL) { 9350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->ivm = oakley_newiv2(iph1, iph2->msgid); 9360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2->ivm == NULL) { 9370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 9380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 9390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* generate HASH(1) */ 9420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang hash = oakley_compute_hash1(iph2->ph1, iph2->msgid, payload); 9430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (hash == NULL) { 9440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 9450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 9460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* initialized total buffer length */ 9490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = hash->l; 9500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen += sizeof(*gen); 9510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else { 9520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* IKE-SA is not established */ 9530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang hash = NULL; 9540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* initialized total buffer length */ 9560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = 0; 9570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((flags & ISAKMP_FLAG_A) == 0) 9590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->flags = (hash == NULL ? 0 : ISAKMP_FLAG_E); 9600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else 9610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->flags = (hash == NULL ? 0 : ISAKMP_FLAG_A); 9620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang insph2(iph2); 9640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang bindph12(iph1, iph2); 9650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen += sizeof(*isakmp) + payload->l; 9670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* create buffer for isakmp payload */ 9690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->sendbuf = vmalloc(tlen); 9700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2->sendbuf == NULL) { 9710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 9720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer to send.\n"); 9730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto err; 9740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* create isakmp header */ 9770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp = (struct isakmp *)iph2->sendbuf->v; 9780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(&isakmp->i_ck, &iph1->index.i_ck, sizeof(cookie_t)); 9790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(&isakmp->r_ck, &iph1->index.r_ck, sizeof(cookie_t)); 9800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp->np = hash == NULL ? (np & 0xff) : ISAKMP_NPTYPE_HASH; 9810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp->v = iph1->version; 9820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp->etype = ISAKMP_ETYPE_INFO; 9830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp->flags = iph2->flags; 9840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(&isakmp->msgid, &iph2->msgid, sizeof(isakmp->msgid)); 9850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp->len = htonl(tlen); 9860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang p = (char *)(isakmp + 1); 9870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* create HASH payload */ 9890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (hash != NULL) { 9900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang gen = (struct isakmp_gen *)p; 9910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang gen->np = np & 0xff; 9920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang gen->len = htons(sizeof(*gen) + hash->l); 9930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang p += sizeof(*gen); 9940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(p, hash->v, hash->l); 9950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang p += hash->l; 9960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 9970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 9980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* add payload */ 9990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(p, payload->v, payload->l); 10000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang p += payload->l; 10010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef HAVE_PRINT_ISAKMP_C 10030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_printpacket(iph2->sendbuf, iph1->local, iph1->remote, 1); 10040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 10050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* encoding */ 10070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ISSET(isakmp->flags, ISAKMP_FLAG_E)) { 10080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *tmp; 10090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tmp = oakley_do_encrypt(iph2->ph1, iph2->sendbuf, iph2->ivm->ive, 10110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->ivm->iv); 10120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang VPTRINIT(iph2->sendbuf); 10130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (tmp == NULL) 10140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto err; 10150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2->sendbuf = tmp; 10160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* HDR*, HASH(1), N */ 10190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (isakmp_send(iph2->ph1, iph2->sendbuf) < 0) { 10200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang VPTRINIT(iph2->sendbuf); 10210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto err; 10220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, 10250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "sendto Information %s.\n", s_isakmp_nptype(np)); 10260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 10280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * don't resend notify message because peer can use Acknowledged 10290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Informational if peer requires the reply of the notify message. 10300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 10310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX If Acknowledged Informational required, don't delete ph2handle */ 10330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = 0; 10340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang VPTRINIT(iph2->sendbuf); 10350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto err; /* XXX */ 10360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangend: 10380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (hash) 10390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(hash); 10400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 10410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangerr: 10430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unbindph12(iph2); 10440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang remph2(iph2); 10450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 10460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto end; 10470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 10480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 10500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * add a notify payload to buffer by reallocating buffer. 10510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * If buf == NULL, the function only create a notify payload. 10520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * 10530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * XXX Which is SPI to be included, inbound or outbound ? 10540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 10550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvchar_t * 10560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_add_pl_n(buf0, np_p, type, pr, data) 10570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *buf0; 10580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int8_t **np_p; 10590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int type; 10600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct saproto *pr; 10610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *data; 10620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 10630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *buf = NULL; 10640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_n *n; 10650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 10660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int oldlen = 0; 10670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (*np_p) 10690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang **np_p = ISAKMP_NPTYPE_N; 10700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*n) + pr->spisize; 10720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 10740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen += data->l; 10750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buf0) { 10760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang oldlen = buf0->l; 10770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang buf = vrealloc(buf0, buf0->l + tlen); 10780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else 10790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang buf = vmalloc(tlen); 10800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (!buf) { 10810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 10820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get a payload buffer.\n"); 10830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return NULL; 10840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 10850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n = (struct isakmp_pl_n *)(buf->v + oldlen); 10870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.np = ISAKMP_NPTYPE_NONE; 10880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->h.len = htons(tlen); 10890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->doi = htonl(IPSEC_DOI); /* IPSEC DOI (1) */ 10900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->proto_id = pr->proto_id; /* IPSEC AH/ESP/whatever*/ 10910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->spi_size = pr->spisize; 10920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang n->type = htons(type); 10930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *(u_int32_t *)(n + 1) = pr->spi; /* XXX */ 10940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (data) 10950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy((caddr_t)(n + 1) + pr->spisize, data->v, data->l); 10960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 10970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* save the pointer of next payload type */ 10980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang *np_p = &n->h.np; 10990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return buf; 11010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic void 11040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangpurge_isakmp_spi(proto, spi, n) 11050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int proto; 11060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_index *spi; /*network byteorder*/ 11070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang size_t n; 11080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 11100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang size_t i; 11110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < n; i++) { 11130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1 = getph1byindex(&spi[i]); 11140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (!iph1) 11150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 11160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_INFO, LOCATION, NULL, 11180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "purged ISAKMP-SA proto_id=%s spi=%s.\n", 11190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_ipsecdoi_proto(proto), 11200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_pindex(&spi[i], 0)); 11210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SCHED_KILL(iph1->sce); 11230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->status = PHASE1ST_EXPIRED; 11240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->sce = sched_new(1, isakmp_ph1delete_stub, iph1); 11250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 11260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 11270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid 11310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangpurge_ipsec_spi(dst0, proto, spi, n) 11320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sockaddr *dst0; 11330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int proto; 11340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t *spi; /*network byteorder*/ 11350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang size_t n; 11360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 11370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *buf = NULL; 11380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_msg *msg, *next, *end; 11390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_sa *sa; 11400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_lifetime *lt; 11410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sockaddr *src, *dst; 11420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph2handle *iph2; 11430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int64_t created; 11440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang size_t i; 11450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang caddr_t mhp[SADB_EXT_MAX + 1]; 11460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_NATT 11470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_x_nat_t_type *natt_type; 11480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_x_nat_t_port *natt_port; 11490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 11500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG2, LOCATION, NULL, 11520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "purge_ipsec_spi:\n"); 11530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG2, LOCATION, NULL, "dst0: %s\n", saddr2str(dst0)); 11540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG2, LOCATION, NULL, "SPI: %08X\n", ntohl(spi[0])); 11550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang buf = pfkey_dump_sadb(ipsecdoi2pfkey_proto(proto)); 11570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buf == NULL) { 11580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, 11590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "pfkey_dump_sadb returned nothing.\n"); 11600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 11610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 11620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = (struct sadb_msg *)buf->v; 11640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang end = (struct sadb_msg *)(buf->v + buf->l); 11650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang while (msg < end) { 11670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((msg->sadb_msg_len << 3) < sizeof(*msg)) 11680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 11690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang next = (struct sadb_msg *)((caddr_t)msg + (msg->sadb_msg_len << 3)); 11700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msg->sadb_msg_type != SADB_DUMP) { 11710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 11720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 11730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 11740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (pfkey_align(msg, mhp) || pfkey_check(mhp)) { 11760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 11770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "pfkey_check (%s)\n", ipsec_strerror()); 11780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 11790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 11800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 11810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sa = (struct sadb_sa *)(mhp[SADB_EXT_SA]); 11830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (!sa 11840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang || !mhp[SADB_EXT_ADDRESS_SRC] 11850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang || !mhp[SADB_EXT_ADDRESS_DST]) { 11860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 11870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 11880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 11890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang src = PFKEY_ADDR_SADDR(mhp[SADB_EXT_ADDRESS_SRC]); 11900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang dst = PFKEY_ADDR_SADDR(mhp[SADB_EXT_ADDRESS_DST]); 11910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang lt = (struct sadb_lifetime*)mhp[SADB_EXT_LIFETIME_HARD]; 11920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(lt != NULL) 11930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang created = lt->sadb_lifetime_addtime; 11940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else 11950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang created = 0; 11960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 11970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (sa->sadb_sa_state != SADB_SASTATE_MATURE 11980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang && sa->sadb_sa_state != SADB_SASTATE_DYING) { 11990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 12000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 12010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 12020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_NATT 12030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang natt_type = (void *)mhp[SADB_X_EXT_NAT_T_TYPE]; 12040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (natt_type && natt_type->sadb_x_nat_t_type_type) { 12050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* NAT-T is enabled for this SADB entry; copy 12060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * the ports from NAT-T extensions */ 12070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang natt_port = (void *)mhp[SADB_X_EXT_NAT_T_SPORT]; 12080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (extract_port(src) == 0 && natt_port != NULL) 12090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang set_port(src, ntohs(natt_port->sadb_x_nat_t_port_port)); 12100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang natt_port = (void *)mhp[SADB_X_EXT_NAT_T_DPORT]; 12120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (extract_port(dst) == 0 && natt_port != NULL) 12130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang set_port(dst, ntohs(natt_port->sadb_x_nat_t_port_port)); 12140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 12150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 12160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG2, LOCATION, NULL, "src: %s\n", saddr2str(src)); 12170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG2, LOCATION, NULL, "dst: %s\n", saddr2str(dst)); 12180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX n^2 algorithm, inefficient */ 12200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* don't delete inbound SAs at the moment */ 12220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX should we remove SAs with opposite direction as well? */ 12230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (CMPSADDR(dst0, dst)) { 12240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 12250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 12260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 12270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < n; i++) { 12290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, 12300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "check spi(packet)=%u spi(db)=%u.\n", 12310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ntohl(spi[i]), ntohl(sa->sadb_sa_spi)); 12320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (spi[i] != sa->sadb_sa_spi) 12330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 12340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_send_delete(lcconf->sock_pfkey, 12360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg->sadb_msg_satype, 12370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang IPSEC_MODE_ANY, 12380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang src, dst, sa->sadb_sa_spi); 12390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 12410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * delete a relative phase 2 handler. 12420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * continue to process if no relative phase 2 handler 12430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * exists. 12440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 12450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2 = getph2bysaidx(src, dst, proto, spi[i]); 12460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(iph2 != NULL){ 12470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delete_spd(iph2, created); 12480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unbindph12(iph2); 12490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang remph2(iph2); 12500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 12510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 12520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_INFO, LOCATION, NULL, 12540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "purged IPsec-SA proto_id=%s spi=%u.\n", 12550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_ipsecdoi_proto(proto), 12560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ntohl(spi[i])); 12570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 12580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 12600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 12610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buf) 12630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(buf); 12640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 12650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 12670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * delete all phase2 sa relatived to the destination address. 12680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Don't delete Phase 1 handlers on INITIAL-CONTACT, and don't ignore 12690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * an INITIAL-CONTACT if we have contacted the peer. This matches the 12700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Sun IKE behavior, and makes rekeying work much better when the peer 12710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * restarts. 12720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 12730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic void 12740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wanginfo_recv_initialcontact(iph1) 12750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 12760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 12770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *buf = NULL; 12780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_msg *msg, *next, *end; 12790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sadb_sa *sa; 12800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct sockaddr *src, *dst; 12810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang caddr_t mhp[SADB_EXT_MAX + 1]; 12820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int proto_id, i; 12830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph2handle *iph2; 12840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if 0 12850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang char *loc, *rem; 12860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 12870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (f_local) 12890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 12900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#if 0 12920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang loc = racoon_strdup(saddrwop2str(iph1->local)); 12930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang rem = racoon_strdup(saddrwop2str(iph1->remote)); 12940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang STRDUP_FATAL(loc); 12950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang STRDUP_FATAL(rem); 12960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 12970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 12980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Purge all IPSEC-SAs for the peer. We can do this 12990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * the easy way (using a PF_KEY SADB_DELETE extension) 13000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * or we can do it the hard way. 13010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 13020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < pfkey_nsatypes; i++) { 13030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang proto_id = pfkey2ipsecdoi_proto(pfkey_satypes[i].ps_satype); 13040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_INFO, LOCATION, NULL, 13060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "purging %s SAs for %s -> %s\n", 13070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_satypes[i].ps_name, loc, rem); 13080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (pfkey_send_delete_all(lcconf->sock_pfkey, 13090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_satypes[i].ps_satype, IPSEC_MODE_ANY, 13100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->local, iph1->remote) == -1) { 13110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 13120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete_all %s -> %s failed for %s (%s)\n", 13130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang loc, rem, 13140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_satypes[i].ps_name, ipsec_strerror()); 13150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto the_hard_way; 13160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang deleteallph2(iph1->local, iph1->remote, proto_id); 13190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_INFO, LOCATION, NULL, 13210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "purging %s SAs for %s -> %s\n", 13220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_satypes[i].ps_name, rem, loc); 13230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (pfkey_send_delete_all(lcconf->sock_pfkey, 13240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_satypes[i].ps_satype, IPSEC_MODE_ANY, 13250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->remote, iph1->local) == -1) { 13260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 13270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "delete_all %s -> %s failed for %s (%s)\n", 13280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang rem, loc, 13290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_satypes[i].ps_name, ipsec_strerror()); 13300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang goto the_hard_way; 13310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang deleteallph2(iph1->remote, iph1->local, proto_id); 13340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang racoon_free(loc); 13370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang racoon_free(rem); 13380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 13390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang the_hard_way: 13410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang racoon_free(loc); 13420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang racoon_free(rem); 13430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 13440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang buf = pfkey_dump_sadb(SADB_SATYPE_UNSPEC); 13460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (buf == NULL) { 13470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, 13480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "pfkey_dump_sadb returned nothing.\n"); 13490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 13500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = (struct sadb_msg *)buf->v; 13530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang end = (struct sadb_msg *)(buf->v + buf->l); 13540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang while (msg < end) { 13560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if ((msg->sadb_msg_len << 3) < sizeof(*msg)) 13570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 13580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang next = (struct sadb_msg *)((caddr_t)msg + (msg->sadb_msg_len << 3)); 13590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (msg->sadb_msg_type != SADB_DUMP) { 13600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 13610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 13620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (pfkey_align(msg, mhp) || pfkey_check(mhp)) { 13650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 13660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "pfkey_check (%s)\n", ipsec_strerror()); 13670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 13680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 13690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (mhp[SADB_EXT_SA] == NULL 13720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang || mhp[SADB_EXT_ADDRESS_SRC] == NULL 13730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang || mhp[SADB_EXT_ADDRESS_DST] == NULL) { 13740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 13750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 13760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang sa = (struct sadb_sa *)mhp[SADB_EXT_SA]; 13780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang src = PFKEY_ADDR_SADDR(mhp[SADB_EXT_ADDRESS_SRC]); 13790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang dst = PFKEY_ADDR_SADDR(mhp[SADB_EXT_ADDRESS_DST]); 13800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (sa->sadb_sa_state != SADB_SASTATE_MATURE 13820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang && sa->sadb_sa_state != SADB_SASTATE_DYING) { 13830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 13840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 13850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 13860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 13870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 13880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * RFC2407 4.6.3.3 INITIAL-CONTACT is the message that 13890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * announces the sender of the message was rebooted. 13900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * it is interpreted to delete all SAs which source address 13910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * is the sender of the message. 13920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * racoon only deletes SA which is matched both the 13930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * source address and the destination accress. 13940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 13950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_NATT 13960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 13970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * XXX RFC 3947 says that whe MUST NOT use IP+port to find old SAs 13980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * from this peer ! 13990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 14000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(iph1->natt_flags & NAT_DETECTED){ 14010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (CMPSADDR(iph1->local, src) == 0 && 14020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang CMPSADDR(iph1->remote, dst) == 0) 14030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ; 14040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else if (CMPSADDR(iph1->remote, src) == 0 && 14050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang CMPSADDR(iph1->local, dst) == 0) 14060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ; 14070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else { 14080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 14090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 14100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 14110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } else 14120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 14130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* If there is no NAT-T, we don't have to check addr + port... 14140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * XXX what about a configuration with a remote peers which is not 14150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * NATed, but which NATs some other peers ? 14160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Here, the INITIAl-CONTACT would also flush all those NATed peers !! 14170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 14180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (cmpsaddrwop(iph1->local, src) == 0 && 14190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang cmpsaddrwop(iph1->remote, dst) == 0) 14200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ; 14210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else if (cmpsaddrwop(iph1->remote, src) == 0 && 14220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang cmpsaddrwop(iph1->local, dst) == 0) 14230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ; 14240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else { 14250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 14260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 14270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 14280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 14300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * Make sure this is an SATYPE that we manage. 14310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * This is gross; too bad we couldn't do it the 14320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * easy way. 14330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 14340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang for (i = 0; i < pfkey_nsatypes; i++) { 14350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (pfkey_satypes[i].ps_satype == 14360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg->sadb_msg_satype) 14370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 14380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 14390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (i == pfkey_nsatypes) { 14400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 14410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang continue; 14420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 14430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_INFO, LOCATION, NULL, 14450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "purging spi=%u.\n", ntohl(sa->sadb_sa_spi)); 14460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang pfkey_send_delete(lcconf->sock_pfkey, 14470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg->sadb_msg_satype, 14480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang IPSEC_MODE_ANY, src, dst, sa->sadb_sa_spi); 14490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* 14510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * delete a relative phase 2 handler. 14520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * continue to process if no relative phase 2 handler 14530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * exists. 14540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 14550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang proto_id = pfkey2ipsecdoi_proto(msg->sadb_msg_satype); 14560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph2 = getph2bysaidx(src, dst, proto_id, sa->sadb_sa_spi); 14570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph2) { 14580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delete_spd(iph2, 0); 14590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang unbindph12(iph2); 14600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang remph2(iph2); 14610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang delph2(iph2); 14620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 14630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang msg = next; 14650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 14660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(buf); 14680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 14690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangvoid 14710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_check_notify(gen, iph1) 14720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_gen *gen; /* points to Notify payload */ 14730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 14740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 14750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_n *notify = (struct isakmp_pl_n *)gen; 14760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 14780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "Notify Message received\n"); 14790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 14800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang switch (ntohs(notify->type)) { 14810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_CONNECTED: 14820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_RESPONDER_LIFETIME: 14830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_REPLAY_STATUS: 14840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_HEARTBEAT: 14850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_HYBRID 14860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_UNITY_HEARTBEAT: 14870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 14880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_WARNING, LOCATION, iph1->remote, 14890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore %s notification.\n", 14900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_notify_msg(ntohs(notify->type))); 14910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 14920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang case ISAKMP_NTYPE_INITIAL_CONTACT: 14930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_WARNING, LOCATION, iph1->remote, 14940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "ignore INITIAL-CONTACT notification, " 14950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "because it is only accepted after phase1.\n"); 14960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang break; 14970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang default: 14980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_info_send_n1(iph1, ISAKMP_NTYPE_INVALID_PAYLOAD_TYPE, NULL); 14990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 15000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "received unknown notification type %s.\n", 15010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang s_isakmp_notify_msg(ntohs(notify->type))); 15020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 15030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 15050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 15060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#ifdef ENABLE_DPD 15090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int 15100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_recv_r_u (iph1, ru, msgid) 15110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 15120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_ru *ru; 15130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t msgid; 15140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 15150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_ru *ru_ack; 15160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 15170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 15180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = 0; 15190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 15210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "DPD R-U-There received\n"); 15220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX should compare cookies with iph1->index? 15240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang Or is this already done by calling function? */ 15250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*ru_ack); 15260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 15270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 15280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 15290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer to send.\n"); 15300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return errno; 15310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 15320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack = (struct isakmp_pl_ru *)payload->v; 15340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->h.np = ISAKMP_NPTYPE_NONE; 15350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->h.len = htons(tlen); 15360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->doi = htonl(IPSEC_DOI); 15370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->type = htons(ISAKMP_NTYPE_R_U_THERE_ACK); 15380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->proto_id = IPSECDOI_PROTO_ISAKMP; /* XXX ? */ 15390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->spi_size = sizeof(isakmp_index); 15400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(ru_ack->i_ck, ru->i_ck, sizeof(cookie_t)); 15410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(ru_ack->r_ck, ru->r_ck, sizeof(cookie_t)); 15420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru_ack->data = ru->data; 15430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX Should we do FLAG_A ? */ 15450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, ISAKMP_NPTYPE_N, 15460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ISAKMP_FLAG_E); 15470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 15480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, "received a valid R-U-THERE, ACK sent\n"); 15500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Should we mark tunnel as active ? */ 15520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return error; 15530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 15540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic int 15560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_recv_r_u_ack (iph1, ru, msgid) 15570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 15580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_ru *ru; 15590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang u_int32_t msgid; 15600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 15610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 15630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "DPD R-U-There-Ack received\n"); 15640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX Maintain window of acceptable sequence numbers ? 15660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * => ru->data <= iph2->dpd_seq && 15670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * ru->data >= iph2->dpd_seq - iph2->dpd_fails ? */ 15680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (ntohl(ru->data) != iph1->dpd_seq-1) { 15690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 15700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "Wrong DPD sequence number (%d, %d expected).\n", 15710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ntohl(ru->data), iph1->dpd_seq-1); 15720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 15730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 15740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (memcmp(ru->i_ck, iph1->index.i_ck, sizeof(cookie_t)) || 15760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcmp(ru->r_ck, iph1->index.r_ck, sizeof(cookie_t))) { 15770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, iph1->remote, 15780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "Cookie mismatch in DPD ACK!.\n"); 15790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 15800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 15810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_fails = 0; 15830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Useless ??? */ 15850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_lastack = time(NULL); 15860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang SCHED_KILL(iph1->dpd_r_u); 15880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_sched_r_u(iph1, 0); 15900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, NULL, "received an R-U-THERE-ACK\n"); 15920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 15940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 15950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 15990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* 16000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * send DPD R-U-THERE payload in Informational exchange. 16010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 16020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangstatic void 16030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_info_send_r_u(arg) 16040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang void *arg; 16050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 16060a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1 = arg; 16070a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16080a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* create R-U-THERE payload */ 16090a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct isakmp_pl_ru *ru; 16100a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vchar_t *payload = NULL; 16110a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int tlen; 16120a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int error = 0; 16130a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16140a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, "DPD monitoring....\n"); 16150a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16160a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_r_u=NULL; 16170a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16180a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1->dpd_fails >= iph1->rmconf->dpd_maxfails) { 16190a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16200a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_INFO, LOCATION, iph1->remote, 16210a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "DPD: remote (ISAKMP-SA spi=%s) seems to be dead.\n", 16220a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_pindex(&iph1->index, 0)); 16230a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16240a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang EVT_PUSH(iph1->local, iph1->remote, EVTT_DPD_TIMEOUT, NULL); 16250a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang purge_remote(iph1); 16260a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16270a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Do not reschedule here: phase1 is deleted, 16280a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * DPD will be reactivated when a new ph1 will be negociated 16290a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang */ 16300a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 16310a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 16320a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16330a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* TODO: check recent activity to avoid useless sends... */ 16340a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16350a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang tlen = sizeof(*ru); 16360a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang payload = vmalloc(tlen); 16370a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (payload == NULL) { 16380a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_ERROR, LOCATION, NULL, 16390a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "failed to get buffer for payload.\n"); 16400a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return; 16410a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 16420a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru = (struct isakmp_pl_ru *)payload->v; 16430a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->h.np = ISAKMP_NPTYPE_NONE; 16440a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->h.len = htons(tlen); 16450a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->doi = htonl(IPSEC_DOI); 16460a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->type = htons(ISAKMP_NTYPE_R_U_THERE); 16470a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->proto_id = IPSECDOI_PROTO_ISAKMP; /* XXX ?*/ 16480a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->spi_size = sizeof(isakmp_index); 16490a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16500a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(ru->i_ck, iph1->index.i_ck, sizeof(cookie_t)); 16510a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang memcpy(ru->r_ck, iph1->index.r_ck, sizeof(cookie_t)); 16520a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16530a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if (iph1->dpd_seq == 0){ 16540a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* generate a random seq which is not too big */ 16550a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang srand(time(NULL)); 16560a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_seq = rand() & 0x0fff; 16570a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang } 16580a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16590a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang ru->data = htonl(iph1->dpd_seq); 16600a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16610a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang error = isakmp_info_send_common(iph1, payload, ISAKMP_NPTYPE_N, 0); 16620a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang vfree(payload); 16630a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16640a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 16650a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "DPD R-U-There sent (%d)\n", error); 16660a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16670a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* will be decreased if ACK received... */ 16680a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_fails++; 16690a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16700a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* XXX should be increased only when ACKed ? */ 16710a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_seq++; 16720a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16730a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang /* Reschedule the r_u_there with a short delay, 16740a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang * will be deleted/rescheduled if ACK received before */ 16750a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_sched_r_u(iph1, 1); 16760a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16770a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang plog(LLV_DEBUG, LOCATION, iph1->remote, 16780a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang "rescheduling send_r_u (%d).\n", iph1->rmconf->dpd_retry); 16790a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 16800a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16810a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang/* Schedule a new R-U-THERE */ 16820a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangint 16830a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wangisakmp_sched_r_u(iph1, retry) 16840a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang struct ph1handle *iph1; 16850a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang int retry; 16860a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang{ 16870a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(iph1 == NULL || 16880a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->rmconf == NULL) 16890a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 1; 16900a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16910a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16920a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(iph1->dpd_support == 0 || 16930a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->rmconf->dpd_interval == 0) 16940a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 16950a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 16960a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang if(retry) 16970a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_r_u = sched_new(iph1->rmconf->dpd_retry, 16980a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_info_send_r_u, iph1); 16990a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang else 17000a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang iph1->dpd_r_u = sched_new(iph1->rmconf->dpd_interval, 17010a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang isakmp_info_send_r_u, iph1); 17020a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang 17030a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang return 0; 17040a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang} 17050a1907d434839af6a9cb6329bbde60b237bf53dcChung-yih Wang#endif 1706