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/* $OpenBSD: ipsecctl.h,v 1.76 2023/08/07 04:10:08 dlg 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
#define IPSECCTL_OPT_SHOWKEY 0x0800
#define IPSECCTL_OPT_COLLAPSE 0x1000
enum {
ACTION_ADD, ACTION_DELETE
};
#define RULE_FLOW 0x01
#define RULE_SA 0x02
#define RULE_IKE 0x04
#define RULE_BUNDLE 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_IPV4, ID_IPV6, 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_AES,
ENCXF_AES_128, ENCXF_AES_192, ENCXF_AES_256, ENCXF_AESCTR,
ENCXF_AES_128_CTR, ENCXF_AES_192_CTR, ENCXF_AES_256_CTR,
ENCXF_AES_128_GCM, ENCXF_AES_192_GCM, ENCXF_AES_256_GCM,
ENCXF_AES_128_GMAC, ENCXF_AES_192_GMAC, ENCXF_AES_256_GMAC,
ENCXF_BLOWFISH, ENCXF_CAST128, ENCXF_CHACHA20_POLY1305, ENCXF_NULL
};
enum {
COMPXF_UNKNOWN, COMPXF_DEFLATE
};
enum {
GROUPXF_UNKNOWN, GROUPXF_NONE, GROUPXF_1, GROUPXF_2, GROUPXF_5,
GROUPXF_14, GROUPXF_15, GROUPXF_16, GROUPXF_17, GROUPXF_18,
GROUPXF_19, GROUPXF_20, GROUPXF_21, GROUPXF_25, GROUPXF_26,
GROUPXF_27, GROUPXF_28, GROUPXF_29, GROUPXF_30
};
enum {
IKE_ACTIVE, IKE_PASSIVE, IKE_DYNAMIC
};
enum {
IKE_AUTH_RSA, IKE_AUTH_PSK
};
enum {
IKE_MM=0, IKE_AM, IKE_QM
};
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_addr_wrap *srcnat;
};
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 srcid_type;
u_int8_t dstid_type;
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;
u_int8_t noauth;
u_int8_t nostatic;
};
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_lifetime {
int lt_bytes;
int lt_seconds;
};
struct ike_mode {
struct ipsec_transforms *xfs;
struct ipsec_lifetime *life;
u_int8_t ike_exch;
};
extern const struct ipsec_xf authxfs[];
extern const struct ipsec_xf encxfs[];
extern const struct ipsec_xf compxfs[];
TAILQ_HEAD(dst_bundle_queue, ipsec_rule);
/* Complete state of one rule. */
struct ipsec_rule {
u_int8_t type;
unsigned int flags;
#define IPSEC_RULE_F_IFACE (1 << 0) /* iface is valid */
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 *p1xfs;
struct ipsec_lifetime *p1life;
struct ipsec_transforms *p2xfs;
struct ipsec_lifetime *p2life;
struct ipsec_key *authkey;
struct ipsec_key *enckey;
char *tag; /* pf tag for SAs */
char *p1name; /* Phase 1 Name */
char *p2name; /* Phase 2 Name (IPsec-XX) */
char *p2lid; /* Phase 2 source ID */
char *p2rid; /* Phase 2 destination ID */
char *p2nid; /* Phase 2 source NAT-ID */
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_int8_t p1ie;
u_int8_t p2ie;
u_int8_t udpencap;
u_int16_t udpdport;
u_int16_t sport;
u_int16_t dport;
u_int32_t spi;
u_int32_t spi2;
u_int32_t nr;
unsigned int iface;
TAILQ_ENTRY(ipsec_rule) rule_entry;
TAILQ_ENTRY(ipsec_rule) bundle_entry;
TAILQ_ENTRY(ipsec_rule) dst_bundle_entry;
TAILQ_HEAD(, ipsec_rule) collapsed_rules;
struct dst_bundle_queue dst_bundle_queue;
char *bundle;
};
TAILQ_HEAD(ipsec_rule_queue, ipsec_rule);
TAILQ_HEAD(ipsec_bundle_queue, ipsec_rule);
struct ipsecctl {
u_int32_t rule_nr;
int opts;
struct ipsec_rule_queue rule_queue;
struct ipsec_bundle_queue bundle_queue;
};
int parse_rules(const char *, 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 *, const char *);
void set_ipmask(struct ipsec_addr_wrap *, u_int8_t);
#endif /* _IPSECCTL_H_ */
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