1 /* $NetBSD: libpfkey.h,v 1.12.4.1 2007/08/01 11:52:18 vanhu Exp $ */
2
3 /* Id: libpfkey.h,v 1.13 2005/12/04 20:26:43 manubsd Exp */
4
5 /*
6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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 #ifndef _LIBPFKEY_H
35 #define _LIBPFKEY_H
36
37 #ifndef KAME_LIBPFKEY_H
38 #define KAME_LIBPFKEY_H
39
40 #define PRIORITY_LOW 0xC0000000
41 #define PRIORITY_DEFAULT 0x80000000
42 #define PRIORITY_HIGH 0x40000000
43
44 #define PRIORITY_OFFSET_POSITIVE_MAX 0x3fffffff
45 #define PRIORITY_OFFSET_NEGATIVE_MAX 0x40000000
46
47 struct sadb_msg;
48 extern void pfkey_sadump __P((struct sadb_msg *));
49 extern void pfkey_sadump_withports __P((struct sadb_msg *));
50 extern void pfkey_spdump __P((struct sadb_msg *));
51 extern void pfkey_spdump_withports __P((struct sadb_msg *));
52
53 struct sockaddr;
54 struct sadb_alg;
55
56 /* Accomodate different prototypes in <netinet6/ipsec.h> */
57 #include <sys/types.h>
58 #include PATH_IPSEC_H
59
60 #ifndef HAVE_IPSEC_POLICY_T
61 typedef caddr_t ipsec_policy_t;
62 #define __ipsec_const
63 #else
64 #define __ipsec_const const
65 #endif
66
67 struct pfkey_send_sa_args {
68 int so; /* socket */
69 u_int type;
70 u_int satype;
71 u_int mode;
72 struct sockaddr *src; /* IP src address for SA */
73 struct sockaddr *dst; /* IP dst address for SA */
74 u_int32_t spi; /* SA's spi */
75 u_int32_t reqid;
76 u_int wsize;
77 caddr_t keymat;
78 u_int e_type, e_keylen; /* Encryption alg and keylen */
79 u_int a_type, a_keylen; /* Authentication alg and key */
80 u_int flags;
81 u_int32_t l_alloc;
82 u_int32_t l_bytes;
83 u_int32_t l_addtime;
84 u_int32_t l_usetime;
85 u_int32_t seq;
86 u_int8_t l_natt_type;
87 u_int16_t l_natt_sport, l_natt_dport;
88 struct sockaddr *l_natt_oa;
89 u_int16_t l_natt_frag;
90 u_int8_t ctxdoi, ctxalg; /* Security context DOI and algorithm */
91 caddr_t ctxstr; /* Security context string */
92 u_int16_t ctxstrlen; /* length of security context string */
93 };
94
95 /* The options built into libipsec */
96 extern int libipsec_opt;
97 #define LIBIPSEC_OPT_NATT 0x01
98 #define LIBIPSEC_OPT_FRAG 0x02
99 #define LIBIPSEC_OPT_SEC_CTX 0x04
100
101 /* IPsec Library Routines */
102
103 int ipsec_check_keylen __P((u_int, u_int, u_int));
104 int ipsec_check_keylen2 __P((u_int, u_int, u_int));
105 int ipsec_get_keylen __P((u_int, u_int, struct sadb_alg *));
106 char *ipsec_dump_policy_withports __P((void *, const char *));
107 void ipsec_hexdump __P((const void *, int));
108 const char *ipsec_strerror __P((void));
109 void kdebug_sadb __P((struct sadb_msg *));
110 ipsec_policy_t ipsec_set_policy __P((__ipsec_const char *, int));
111 int ipsec_get_policylen __P((ipsec_policy_t));
112 char *ipsec_dump_policy __P((ipsec_policy_t, __ipsec_const char *));
113
114 /* PFKey Routines */
115
116 u_int pfkey_set_softrate __P((u_int, u_int));
117 u_int pfkey_get_softrate __P((u_int));
118 int pfkey_send_getspi __P((int, u_int, u_int, struct sockaddr *,
119 struct sockaddr *, u_int32_t, u_int32_t, u_int32_t, u_int32_t));
120 int pfkey_send_update2 __P((struct pfkey_send_sa_args *));
121 int pfkey_send_add2 __P((struct pfkey_send_sa_args *));
122 int pfkey_send_delete __P((int, u_int, u_int,
123 struct sockaddr *, struct sockaddr *, u_int32_t));
124 int pfkey_send_delete_all __P((int, u_int, u_int,
125 struct sockaddr *, struct sockaddr *));
126 int pfkey_send_get __P((int, u_int, u_int,
127 struct sockaddr *, struct sockaddr *, u_int32_t));
128 int pfkey_send_register __P((int, u_int));
129 int pfkey_recv_register __P((int));
130 int pfkey_set_supported __P((struct sadb_msg *, int));
131 int pfkey_send_flush __P((int, u_int));
132 int pfkey_send_dump __P((int, u_int));
133 int pfkey_send_promisc_toggle __P((int, int));
134 int pfkey_send_spdadd __P((int, struct sockaddr *, u_int,
135 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
136 int pfkey_send_spdadd2 __P((int, struct sockaddr *, u_int,
137 struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t,
138 caddr_t, int, u_int32_t));
139 int pfkey_send_spdupdate __P((int, struct sockaddr *, u_int,
140 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
141 int pfkey_send_spdupdate2 __P((int, struct sockaddr *, u_int,
142 struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t,
143 caddr_t, int, u_int32_t));
144 int pfkey_send_spddelete __P((int, struct sockaddr *, u_int,
145 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
146 int pfkey_send_spddelete2 __P((int, u_int32_t));
147 int pfkey_send_spdget __P((int, u_int32_t));
148 int pfkey_send_spdsetidx __P((int, struct sockaddr *, u_int,
149 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
150 int pfkey_send_spdflush __P((int));
151 int pfkey_send_spddump __P((int));
152 #ifdef SADB_X_MIGRATE
153 int pfkey_send_migrate __P((int, struct sockaddr *, u_int,
154 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
155 #endif
156
157 int pfkey_open __P((void));
158 void pfkey_close __P((int));
159 struct sadb_msg *pfkey_recv __P((int));
160 int pfkey_send __P((int, struct sadb_msg *, int));
161 int pfkey_align __P((struct sadb_msg *, caddr_t *));
162 int pfkey_check __P((caddr_t *));
163
164 /*
165 * Deprecated, available for backward compatibility with third party
166 * libipsec users. Please use pfkey_send_update2 and pfkey_send_add2 instead
167 */
168 int pfkey_send_update __P((int, u_int, u_int, struct sockaddr *,
169 struct sockaddr *, u_int32_t, u_int32_t, u_int,
170 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
171 u_int64_t, u_int64_t, u_int32_t));
172 int pfkey_send_update_nat __P((int, u_int, u_int, struct sockaddr *,
173 struct sockaddr *, u_int32_t, u_int32_t, u_int,
174 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
175 u_int64_t, u_int64_t, u_int32_t,
176 u_int8_t, u_int16_t, u_int16_t, struct sockaddr *, u_int16_t));
177 int pfkey_send_add __P((int, u_int, u_int, struct sockaddr *,
178 struct sockaddr *, u_int32_t, u_int32_t, u_int,
179 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
180 u_int64_t, u_int64_t, u_int32_t));
181 int pfkey_send_add_nat __P((int, u_int, u_int, struct sockaddr *,
182 struct sockaddr *, u_int32_t, u_int32_t, u_int,
183 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
184 u_int64_t, u_int64_t, u_int32_t,
185 u_int8_t, u_int16_t, u_int16_t, struct sockaddr *, u_int16_t));
186
187 #ifndef __SYSDEP_SA_LEN__
188 #define __SYSDEP_SA_LEN__
189 #include <netinet/in.h>
190
191 #ifndef IPPROTO_IPV4
192 #define IPPROTO_IPV4 IPPROTO_IPIP
193 #endif
194
195 #ifndef IPPROTO_IPCOMP
196 #define IPPROTO_IPCOMP IPPROTO_COMP
197 #endif
198
199 static __inline u_int8_t
sysdep_sa_len(const struct sockaddr * sa)200 sysdep_sa_len (const struct sockaddr *sa)
201 {
202 #ifdef __linux__
203 switch (sa->sa_family)
204 {
205 case AF_INET:
206 return sizeof (struct sockaddr_in);
207 case AF_INET6:
208 return sizeof (struct sockaddr_in6);
209 }
210 // log_print ("sysdep_sa_len: unknown sa family %d", sa->sa_family);
211 return sizeof (struct sockaddr_in);
212 #else
213 return sa->sa_len;
214 #endif
215 }
216 #endif
217
218 #endif /* KAME_LIBPFKEY_H */
219
220 #endif /* _LIBPFKEY_H */
221