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      1 /*	$NetBSD: isakmp_cfg.h,v 1.6 2006/09/09 16:22:09 manu Exp $	*/
      2 
      3 /*	$KAME$ */
      4 
      5 /*
      6  * Copyright (C) 2004 Emmanuel Dreyfus
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. Neither the name of the project nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifdef HAVE_LIBPAM
     35 #include <security/pam_appl.h>
     36 #endif
     37 
     38 /*
     39  * XXX don't forget to update
     40  * src/racoon/handler.c:exclude_cfg_addr()
     41  * if you add IPv6 capability
     42  */
     43 
     44 /* Attribute types */
     45 #define INTERNAL_IP4_ADDRESS        1
     46 #define INTERNAL_IP4_NETMASK        2
     47 #define INTERNAL_IP4_DNS            3
     48 #define INTERNAL_IP4_NBNS           4
     49 #define INTERNAL_ADDRESS_EXPIRY     5
     50 #define INTERNAL_IP4_DHCP           6
     51 #define APPLICATION_VERSION         7
     52 #define INTERNAL_IP6_ADDRESS        8
     53 #define INTERNAL_IP6_NETMASK        9
     54 #define INTERNAL_IP6_DNS           10
     55 #define INTERNAL_IP6_NBNS          11
     56 #define INTERNAL_IP6_DHCP          12
     57 #define INTERNAL_IP4_SUBNET        13
     58 #define SUPPORTED_ATTRIBUTES       14
     59 #define INTERNAL_IP6_SUBNET        15
     60 
     61 /* For APPLICATION_VERSION */
     62 #define ISAKMP_CFG_RACOON_VERSION "racoon / IPsec-tools"
     63 
     64 /* For the wins servers -- XXX find the value somewhere ? */
     65 #define MAXWINS 4
     66 
     67 /*
     68  * Global configuration for ISAKMP mode confiration address allocation
     69  * Read from the mode_cfg section of racoon.conf
     70  */
     71 struct isakmp_cfg_port {
     72 	char	used;
     73 #ifdef HAVE_LIBPAM
     74 	pam_handle_t *pam;
     75 #endif
     76 };
     77 
     78 struct isakmp_cfg_config {
     79 	in_addr_t		network4;
     80 	in_addr_t		netmask4;
     81 	in_addr_t		dns4[MAXNS];
     82 	int			dns4_index;
     83 	in_addr_t		nbns4[MAXWINS];
     84 	int			nbns4_index;
     85 	struct isakmp_cfg_port 	*port_pool;
     86 	int			authsource;
     87 	int			groupsource;
     88 	char			**grouplist;
     89 	int			groupcount;
     90 	int			confsource;
     91 	int			accounting;
     92 	size_t			pool_size;
     93 	int			auth_throttle;
     94 	/* XXX move this to a unity specific sub-structure */
     95 	char			default_domain[MAXPATHLEN + 1];
     96 	char			motd[MAXPATHLEN + 1];
     97 	struct unity_netentry	*splitnet_list;
     98 	int			splitnet_count;
     99 	int			splitnet_type;
    100 	char 			*splitdns_list;
    101 	int			splitdns_len;
    102 	int			pfs_group;
    103 	int			save_passwd;
    104 };
    105 
    106 /* For utmp updating */
    107 #define TERMSPEC	"vpn%d"
    108 
    109 /* For authsource */
    110 #define ISAKMP_CFG_AUTH_SYSTEM	0
    111 #define ISAKMP_CFG_AUTH_RADIUS	1
    112 #define ISAKMP_CFG_AUTH_PAM	2
    113 #define ISAKMP_CFG_AUTH_LDAP	4
    114 
    115 /* For groupsource */
    116 #define ISAKMP_CFG_GROUP_SYSTEM	0
    117 #define ISAKMP_CFG_GROUP_LDAP	1
    118 
    119 /* For confsource */
    120 #define ISAKMP_CFG_CONF_LOCAL	0
    121 #define ISAKMP_CFG_CONF_RADIUS	1
    122 #define ISAKMP_CFG_CONF_LDAP	2
    123 
    124 /* For accounting */
    125 #define ISAKMP_CFG_ACCT_NONE	0
    126 #define ISAKMP_CFG_ACCT_RADIUS	1
    127 #define ISAKMP_CFG_ACCT_PAM	2
    128 #define ISAKMP_CFG_ACCT_LDAP	3
    129 #define ISAKMP_CFG_ACCT_SYSTEM	4
    130 
    131 /* For pool_size */
    132 #define ISAKMP_CFG_MAX_CNX	255
    133 
    134 /* For motd */
    135 #define ISAKMP_CFG_MOTD	"/etc/motd"
    136 
    137 /* For default domain */
    138 #define ISAKMP_CFG_DEFAULT_DOMAIN ""
    139 
    140 extern struct isakmp_cfg_config isakmp_cfg_config;
    141 
    142 /*
    143  * ISAKMP mode config state
    144  */
    145 #define LOGINLEN 31
    146 struct isakmp_cfg_state {
    147 	int flags;			/* See below */
    148 	unsigned int port;		/* address index */
    149 	char login[LOGINLEN + 1];	/* login */
    150 	struct in_addr addr4;		/* IPv4 address */
    151 	struct in_addr mask4;		/* IPv4 netmask */
    152 	struct in_addr dns4[MAXNS];	/* IPv4 DNS (when client only) */
    153 	int dns4_index;			/* Number of IPv4 DNS (client only) */
    154 	struct in_addr wins4[MAXWINS];	/* IPv4 WINS (when client only) */
    155 	int wins4_index;		/* Number of IPv4 WINS (client only) */
    156 	char default_domain[MAXPATHLEN + 1];	/* Default domain recieved */
    157 	struct unity_netentry
    158 	    *split_include; 		/* UNITY_SPLIT_INCLUDE */
    159 	int include_count;		/* Number of SPLIT_INCLUDES */
    160 	struct unity_netentry
    161 	    *split_local;		/* UNITY_LOCAL_LAN */
    162 	int local_count;		/* Number of SPLIT_LOCAL */
    163 	struct xauth_state xauth;	/* Xauth state, if revelant */
    164 	struct isakmp_ivm *ivm;		/* XXX Use iph1's ivm? */
    165 	u_int32_t last_msgid;           /* Last message-ID */
    166 };
    167 
    168 /* flags */
    169 #define ISAKMP_CFG_VENDORID_XAUTH	0x01	/* Supports Xauth */
    170 #define ISAKMP_CFG_VENDORID_UNITY	0x02	/* Cisco Unity compliant */
    171 #define ISAKMP_CFG_PORT_ALLOCATED	0x04	/* Port allocated */
    172 #define ISAKMP_CFG_ADDR4_EXTERN		0x08	/* Address from external config  */
    173 #define ISAKMP_CFG_MASK4_EXTERN		0x10	/* Netmask from external config */
    174 #define ISAKMP_CFG_ADDR4_LOCAL		0x20	/* Address from local pool */
    175 #define ISAKMP_CFG_MASK4_LOCAL		0x40	/* Netmask from local pool */
    176 #define ISAKMP_CFG_GOT_ADDR4		0x80	/* Client got address */
    177 #define ISAKMP_CFG_GOT_MASK4		0x100	/* Client got mask */
    178 #define ISAKMP_CFG_GOT_DNS4		0x200	/* Client got DNS */
    179 #define ISAKMP_CFG_GOT_WINS4		0x400	/* Client got WINS */
    180 #define ISAKMP_CFG_DELETE_PH1		0x800	/* phase 1 should be deleted */
    181 #define ISAKMP_CFG_GOT_DEFAULT_DOMAIN	0x1000	/* Client got default domain */
    182 #define ISAKMP_CFG_GOT_SPLIT_INCLUDE	0x2000	/* Client got a split network config */
    183 #define ISAKMP_CFG_GOT_SPLIT_LOCAL	0x4000	/* Client got a split LAN config */
    184 
    185 struct isakmp_pl_attr;
    186 struct ph1handle;
    187 struct isakmp_ivm;
    188 void isakmp_cfg_r(struct ph1handle *, vchar_t *);
    189 int isakmp_cfg_attr_r(struct ph1handle *, u_int32_t, struct isakmp_pl_attr *);
    190 int isakmp_cfg_reply(struct ph1handle *, struct isakmp_pl_attr *);
    191 int isakmp_cfg_request(struct ph1handle *, struct isakmp_pl_attr *);
    192 int isakmp_cfg_set(struct ph1handle *, struct isakmp_pl_attr *);
    193 int isakmp_cfg_send(struct ph1handle *, vchar_t *, u_int32_t, int, int);
    194 struct isakmp_ivm *isakmp_cfg_newiv(struct ph1handle *, u_int32_t);
    195 void isakmp_cfg_rmstate(struct ph1handle *);
    196 struct isakmp_cfg_state *isakmp_cfg_mkstate(void);
    197 vchar_t *isakmp_cfg_copy(struct ph1handle *, struct isakmp_data *);
    198 vchar_t *isakmp_cfg_short(struct ph1handle *, struct isakmp_data *, int);
    199 vchar_t *isakmp_cfg_varlen(struct ph1handle *, struct isakmp_data *, char *, size_t);
    200 vchar_t *isakmp_cfg_string(struct ph1handle *, struct isakmp_data *, char *);
    201 int isakmp_cfg_getconfig(struct ph1handle *);
    202 int isakmp_cfg_setenv(struct ph1handle *, char ***, int *);
    203 
    204 int isakmp_cfg_resize_pool(int);
    205 int isakmp_cfg_getport(struct ph1handle *);
    206 int isakmp_cfg_putport(struct ph1handle *, unsigned int);
    207 int isakmp_cfg_init(int);
    208 #define ISAKMP_CFG_INIT_COLD	1
    209 #define ISAKMP_CFG_INIT_WARM	0
    210 
    211 #ifdef HAVE_LIBRADIUS
    212 struct rad_handle;
    213 extern struct rad_handle *radius_acct_state;
    214 int isakmp_cfg_radius_common(struct rad_handle *, int);
    215 #endif
    216 
    217 #ifdef HAVE_LIBPAM
    218 int isakmp_cfg_accounting_pam(int, int);
    219 void cleanup_pam(int);
    220 #endif
    221 
    222 int isakmp_cfg_accounting_system(int, struct sockaddr *, char *, int);
    223