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/* $OpenBSD: ipsecctl.h,v 1.47 2006/06/02 05:59:31 hshoexer Exp $ */
/*
* Copyright (c) 2004, 2005 Hans-Joerg Hoexer <hshoexer@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _IPSECCTL_H_
#define _IPSECCTL_H_
#define IPSECCTL_OPT_DISABLE 0x0001
#define IPSECCTL_OPT_ENABLE 0x0002
#define IPSECCTL_OPT_NOACTION 0x0004
#define IPSECCTL_OPT_VERBOSE 0x0010
#define IPSECCTL_OPT_VERBOSE2 0x0020
#define IPSECCTL_OPT_SHOW 0x0040
#define IPSECCTL_OPT_SHOWALL 0x0080
#define IPSECCTL_OPT_FLUSH 0x0100
#define IPSECCTL_OPT_DELETE 0x0200
#define IPSECCTL_OPT_MONITOR 0x0400
enum {
ACTION_ADD, ACTION_DELETE
};
#define RULE_FLOW 0x01
#define RULE_SA 0x02
#define RULE_IKE 0x04
#define RULE_GROUP 0x08
enum {
DIRECTION_UNKNOWN, IPSEC_IN, IPSEC_OUT, IPSEC_INOUT
};
enum {
PROTO_UNKNOWN, IPSEC_ESP, IPSEC_AH, IPSEC_IPCOMP, IPSEC_TCPMD5,
IPSEC_IPIP
};
enum {
MODE_UNKNOWN, IPSEC_TRANSPORT, IPSEC_TUNNEL
};
enum {
ID_UNKNOWN, ID_PREFIX, ID_FQDN, ID_UFQDN
};
enum {
TYPE_UNKNOWN, TYPE_USE, TYPE_ACQUIRE, TYPE_REQUIRE, TYPE_DENY,
TYPE_BYPASS, TYPE_DONTACQ
};
enum {
AUTHXF_UNKNOWN, AUTHXF_NONE, AUTHXF_HMAC_MD5, AUTHXF_HMAC_RIPEMD160,
AUTHXF_HMAC_SHA1, AUTHXF_HMAC_SHA2_256, AUTHXF_HMAC_SHA2_384,
AUTHXF_HMAC_SHA2_512
};
enum {
ENCXF_UNKNOWN, ENCXF_NONE, ENCXF_3DES_CBC, ENCXF_DES_CBC, ENCXF_AES,
ENCXF_AESCTR, ENCXF_BLOWFISH, ENCXF_CAST128, ENCXF_NULL, ENCXF_SKIPJACK
};
enum {
COMPXF_UNKNOWN, COMPXF_DEFLATE, COMPXF_LZS
};
enum {
GROUPXF_UNKNOWN, GROUPXF_768, GROUPXF_1024, GROUPXF_1536, GROUPXF_2048,
GROUPXF_3072, GROUPXF_4096, GROUPXF_6144, GROUPXF_8192,
};
enum {
IKE_ACTIVE, IKE_PASSIVE, IKE_DYNAMIC
};
enum {
IKE_AUTH_RSA, IKE_AUTH_PSK
};
struct ipsec_addr {
union {
struct in_addr v4;
struct in6_addr v6;
u_int8_t addr8[16];
u_int16_t addr16[8];
u_int32_t addr32[4];
} ipa;
#define v4 ipa.v4
#define v6 ipa.v6
#define addr8 ipa.addr8
#define addr16 ipa.addr16
#define addr32 ipa.addr32
};
struct ipsec_addr_wrap {
struct ipsec_addr address;
struct ipsec_addr mask;
int netaddress;
sa_family_t af;
char *name;
struct ipsec_addr_wrap *next;
struct ipsec_addr_wrap *tail;
};
struct ipsec_hosts {
struct ipsec_addr_wrap *src;
struct ipsec_addr_wrap *dst;
u_int16_t sport;
u_int16_t dport;
};
struct ipsec_auth {
char *srcid;
char *dstid;
u_int8_t idtype;
u_int16_t type;
};
struct ipsec_key {
size_t len;
u_int8_t *data;
};
struct ike_auth {
u_int8_t type;
char *string;
};
struct ipsec_xf {
char *name;
u_int16_t id;
size_t keymin;
size_t keymax;
};
struct ipsec_transforms {
const struct ipsec_xf *authxf;
const struct ipsec_xf *encxf;
const struct ipsec_xf *compxf;
const struct ipsec_xf *groupxf;
};
struct ipsec_life {
int lifetime;
int lifevolume;
};
struct ike_mode {
struct ipsec_transforms *xfs;
struct ipsec_life *life;
};
extern const struct ipsec_xf authxfs[];
extern const struct ipsec_xf encxfs[];
TAILQ_HEAD(dst_group_queue, ipsec_rule);
/* Complete state of one rule. */
struct ipsec_rule {
u_int8_t type;
struct ipsec_addr_wrap *src;
struct ipsec_addr_wrap *dst;
struct ipsec_addr_wrap *dst2;
struct ipsec_addr_wrap *local;
struct ipsec_addr_wrap *peer;
struct ipsec_auth *auth;
struct ike_auth *ikeauth;
struct ipsec_transforms *xfs;
struct ipsec_transforms *mmxfs;
struct ipsec_life *mmlife;
struct ipsec_transforms *qmxfs;
struct ipsec_life *qmlife;
struct ipsec_key *authkey;
struct ipsec_key *enckey;
u_int8_t satype; /* encapsulating prococol */
u_int8_t proto; /* encapsulated protocol */
u_int8_t proto2;
u_int8_t tmode;
u_int8_t direction;
u_int8_t flowtype;
u_int8_t ikemode;
u_int16_t sport;
u_int16_t dport;
u_int32_t spi;
u_int32_t spi2;
u_int32_t nr;
TAILQ_ENTRY(ipsec_rule) rule_entry;
TAILQ_ENTRY(ipsec_rule) group_entry;
TAILQ_ENTRY(ipsec_rule) dst_group_entry;
struct dst_group_queue dst_group_queue;
};
TAILQ_HEAD(ipsec_rule_queue, ipsec_rule);
TAILQ_HEAD(ipsec_group_queue, ipsec_rule);
struct ipsecctl {
u_int32_t rule_nr;
int opts;
struct ipsec_rule_queue rule_queue;
struct ipsec_group_queue group_queue;
};
int parse_rules(FILE *, struct ipsecctl *);
int cmdline_symset(char *);
int ipsecctl_add_rule(struct ipsecctl *, struct ipsec_rule *);
void ipsecctl_free_rule(struct ipsec_rule *);
void ipsecctl_get_rules(struct ipsecctl *);
void ipsecctl_print_rule(struct ipsec_rule *, int);
int ike_print_config(struct ipsec_rule *, int);
int ike_ipsec_establish(int, struct ipsec_rule *);
void set_ipmask(struct ipsec_addr_wrap *, u_int8_t);
#endif /* _IPSECCTL_H_ */
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