1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
/* $OpenBSD: ipsecctl.h,v 1.48 2006/06/02 12:29:43 markus 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[];
extern const struct ipsec_xf compxfs[];
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_ */
|
