/* $OpenBSD: ipsecctl.h,v 1.77 2023/10/09 15:32:14 tobhe Exp $ */ /* * Copyright (c) 2004, 2005 Hans-Joerg Hoexer * * 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 #define IPSECCTL_OPT_SHOWFLOWS 0x2000 #define IPSECCTL_OPT_SHOWSAS 0x4000 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_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_ */