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Commit	Line	Data
	1	/* $Id: isakmp_unity.c,v 1.5.4.1 2005/05/10 09:45:46 manubsd Exp $ */
	2
	3	/*
	4	* Copyright (C) 2004 Emmanuel Dreyfus
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. Neither the name of the project nor the names of its contributors
	16	* may be used to endorse or promote products derived from this software
	17	* without specific prior written permission.
	18	*
	19	* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
	20	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	21	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	22	* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
	23	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	24	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	25	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	26	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	27	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	28	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	29	* SUCH DAMAGE.
	30	*/
	31
	32	#include "config.h"
	33
	34	#include <sys/types.h>
	35	#include <sys/param.h>
	36	#include <sys/socket.h>
	37	#include <sys/queue.h>
	38
	39	#include <netinet/in.h>
	40	#include <arpa/inet.h>
	41
	42	#include <stdlib.h>
	43	#include <stdio.h>
	44	#include <fcntl.h>
	45	#include <string.h>
	46	#include <errno.h>
	47	#if TIME_WITH_SYS_TIME
	48	# include <sys/time.h>
	49	# include <time.h>
	50	#else
	51	# if HAVE_SYS_TIME_H
	52	# include <sys/time.h>
	53	# else
	54	# include <time.h>
	55	# endif
	56	#endif
	57	#include <netdb.h>
	58	#ifdef HAVE_UNISTD_H
	59	#include <unistd.h>
	60	#endif
	61	#include <ctype.h>
	62
	63	#include "var.h"
	64	#include "misc.h"
	65	#include "vmbuf.h"
	66	#include "plog.h"
	67	#include "sockmisc.h"
	68	#include "schedule.h"
	69	#include "debug.h"
	70
	71	#include "isakmp_var.h"
	72	#include "isakmp.h"
	73	#include "handler.h"
	74	#include "isakmp_xauth.h"
	75	#include "isakmp_unity.h"
	76	#include "isakmp_cfg.h"
	77	#include "strnames.h"
	78
	79	vchar_t *
	80	isakmp_unity_req(iph1, attr)
	81	struct ph1handle *iph1;
	82	struct isakmp_data *attr;
	83	{
	84	int type;
	85	vchar_t *reply_attr = NULL;
	86
	87	if ((iph1->mode_cfg->flags & ISAKMP_CFG_VENDORID_UNITY) == 0) {
	88	plog(LLV_ERROR, LOCATION, NULL,
	89	"Unity mode config request but the peer "
	90	"did not declare itself as unity compliant\n");
	91	return NULL;
	92	}
	93
	94	type = ntohs(attr->type);
	95
	96	/* Handle short attributes */
	97	if ((type & ISAKMP_GEN_MASK) == ISAKMP_GEN_TV) {
	98	type &= ~ISAKMP_GEN_MASK;
	99
	100	plog(LLV_DEBUG, LOCATION, NULL,
	101	"Short attribute %d = %d\n",
	102	type, ntohs(attr->lorv));
	103
	104	switch (type) {
	105	default:
	106	plog(LLV_DEBUG, LOCATION, NULL,
	107	"Ignored short attribute %d\n", type);
	108	break;
	109	}
	110
	111	return reply_attr;
	112	}
	113
	114	switch(type) {
	115	case UNITY_BANNER: {
	116	#define MAXMOTD 65536
	117	char buf[MAXMOTD + 1];
	118	int fd;
	119	char *filename = &isakmp_cfg_config.motd[0];
	120	size_t len;
	121
	122	if ((fd = open(filename, O_RDONLY, 0)) == -1) {
	123	plog(LLV_ERROR, LOCATION, NULL,
	124	"Cannot open \"%s\"\n", filename);
	125	return NULL;
	126	}
	127
	128	if ((len = read(fd, buf, MAXMOTD)) == -1) {
	129	plog(LLV_ERROR, LOCATION, NULL,
	130	"Cannot read \"%s\"\n", filename);
	131	close(fd);
	132	return NULL;
	133	}
	134	close(fd);
	135
	136	buf[len] = '\0';
	137	reply_attr = isakmp_cfg_string(iph1, attr, buf);
	138
	139	break;
	140	}
	141
	142	case UNITY_PFS:
	143	reply_attr = isakmp_cfg_short(iph1, attr,
	144	isakmp_cfg_config.pfs_group);
	145	break;
	146
	147	case UNITY_SAVE_PASSWD:
	148	reply_attr = isakmp_cfg_short(iph1, attr,
	149	isakmp_cfg_config.save_passwd);
	150	break;
	151
	152	case UNITY_DDNS_HOSTNAME:
	153	reply_attr = isakmp_cfg_copy(iph1, attr);
	154	break;
	155
	156	case UNITY_DEF_DOMAIN:
	157	case UNITY_FW_TYPE:
	158	case UNITY_SPLITDNS_NAME:
	159	case UNITY_SPLIT_INCLUDE:
	160	case UNITY_NATT_PORT:
	161	case UNITY_BACKUP_SERVERS:
	162	default:
	163	plog(LLV_DEBUG, LOCATION, NULL,
	164	"Ignored attribute %d\n", type);
	165	return NULL;
	166	break;
	167	}
	168
	169	return reply_attr;
	170	}
	171
	172