1 /* $NetBSD: libpfkey.h,v 1.18 2010/12/03 14:32:52 tteras 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 #ifdef __cplusplus
41 extern "C" {
42 #endif
43
44 #define PRIORITY_LOW 0xC0000000
45 #define PRIORITY_DEFAULT 0x80000000
46 #define PRIORITY_HIGH 0x40000000
47
48 #define PRIORITY_OFFSET_POSITIVE_MAX 0x3fffffff
49 #define PRIORITY_OFFSET_NEGATIVE_MAX 0x40000000
50
51 struct sadb_msg;
52 extern void pfkey_sadump __P((struct sadb_msg *));
53 extern void pfkey_sadump_withports __P((struct sadb_msg *));
54 extern void pfkey_spdump __P((struct sadb_msg *));
55 extern void pfkey_spdump_withports __P((struct sadb_msg *));
56
57 struct sockaddr;
58 struct sadb_alg;
59
60 /* Accomodate different prototypes in <netinet6/ipsec.h> */
61 #include <sys/types.h>
62 #include PATH_IPSEC_H
63
64 #ifndef HAVE_IPSEC_POLICY_T
65 typedef caddr_t ipsec_policy_t;
66 #define __ipsec_const
67 #else
68 #define __ipsec_const const
69 #endif
70
71 struct pfkey_send_sa_args {
72 int so; /* socket */
73 u_int type;
74 u_int satype;
75 u_int mode;
76 struct sockaddr *src; /* IP src address for SA */
77 struct sockaddr *dst; /* IP dst address for SA */
78 u_int32_t spi; /* SA's spi */
79 u_int32_t reqid;
80 u_int wsize;
81 caddr_t keymat;
82 u_int e_type, e_keylen; /* Encryption alg and keylen */
83 u_int a_type, a_keylen; /* Authentication alg and key */
84 u_int flags;
85 u_int32_t l_alloc;
86 u_int32_t l_bytes;
87 u_int32_t l_addtime;
88 u_int32_t l_usetime;
89 u_int32_t seq;
90 u_int8_t l_natt_type;
91 u_int16_t l_natt_sport, l_natt_dport;
92 struct sockaddr *l_natt_oa;
93 u_int16_t l_natt_frag;
94 u_int8_t ctxdoi, ctxalg; /* Security context DOI and algorithm */
95 caddr_t ctxstr; /* Security context string */
96 u_int16_t ctxstrlen; /* length of security context string */
97 };
98
99 /* The options built into libipsec */
100 extern int libipsec_opt;
101 #define LIBIPSEC_OPT_NATT 0x01
102 #define LIBIPSEC_OPT_FRAG 0x02
103 #define LIBIPSEC_OPT_SEC_CTX 0x04
104
105 /* IPsec Library Routines */
106
107 int ipsec_check_keylen __P((u_int, u_int, u_int));
108 int ipsec_check_keylen2 __P((u_int, u_int, u_int));
109 int ipsec_get_keylen __P((u_int, u_int, struct sadb_alg *));
110 char *ipsec_dump_policy_withports __P((void *, const char *));
111 void ipsec_hexdump __P((const void *, int));
112 const char *ipsec_strerror __P((void));
113 void kdebug_sadb __P((struct sadb_msg *));
114 ipsec_policy_t ipsec_set_policy __P((__ipsec_const char *, int));
115 int ipsec_get_policylen __P((ipsec_policy_t));
116 char *ipsec_dump_policy __P((ipsec_policy_t, __ipsec_const char *));
117
118 /* PFKey Routines */
119
120 u_int pfkey_set_softrate __P((u_int, u_int));
121 u_int pfkey_get_softrate __P((u_int));
122 int pfkey_send_getspi __P((int, u_int, u_int, struct sockaddr *,
123 struct sockaddr *, u_int32_t, u_int32_t, u_int32_t, u_int32_t));
124 int pfkey_send_getspi_nat __P((int, u_int, u_int,
125 struct sockaddr *, struct sockaddr *, u_int8_t, u_int16_t, u_int16_t,
126 u_int32_t, u_int32_t, u_int32_t, u_int32_t));
127
128 int pfkey_send_update2 __P((struct pfkey_send_sa_args *));
129 int pfkey_send_add2 __P((struct pfkey_send_sa_args *));
130 int pfkey_send_delete __P((int, u_int, u_int,
131 struct sockaddr *, struct sockaddr *, u_int32_t));
132 int pfkey_send_delete_all __P((int, u_int, u_int,
133 struct sockaddr *, struct sockaddr *));
134 int pfkey_send_get __P((int, u_int, u_int,
135 struct sockaddr *, struct sockaddr *, u_int32_t));
136 int pfkey_send_register __P((int, u_int));
137 int pfkey_recv_register __P((int));
138 int pfkey_set_supported __P((struct sadb_msg *, int));
139 int pfkey_send_flush __P((int, u_int));
140 int pfkey_send_dump __P((int, u_int));
141 int pfkey_send_promisc_toggle __P((int, int));
142 int pfkey_send_spdadd __P((int, struct sockaddr *, u_int,
143 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
144 int pfkey_send_spdadd2 __P((int, struct sockaddr *, u_int,
145 struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t,
146 caddr_t, int, u_int32_t));
147 int pfkey_send_spdupdate __P((int, struct sockaddr *, u_int,
148 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
149 int pfkey_send_spdupdate2 __P((int, struct sockaddr *, u_int,
150 struct sockaddr *, u_int, u_int, u_int64_t, u_int64_t,
151 caddr_t, int, u_int32_t));
152 int pfkey_send_spddelete __P((int, struct sockaddr *, u_int,
153 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
154 int pfkey_send_spddelete2 __P((int, u_int32_t));
155 int pfkey_send_spdget __P((int, u_int32_t));
156 int pfkey_send_spdsetidx __P((int, struct sockaddr *, u_int,
157 struct sockaddr *, u_int, u_int, caddr_t, int, u_int32_t));
158 int pfkey_send_spdflush __P((int));
159 int pfkey_send_spddump __P((int));
160 #ifdef SADB_X_MIGRATE
161 int pfkey_send_migrate __P((int, struct sockaddr *, struct sockaddr *,
162 struct sockaddr *, u_int, struct sockaddr *, u_int, u_int,
163 caddr_t, int, u_int32_t));
164 #endif
165
166 /* XXX should be somewhere else !!!
167 */
168 #ifdef SADB_X_EXT_NAT_T_TYPE
169 #define PFKEY_ADDR_X_PORT(ext) (ntohs(((struct sadb_x_nat_t_port *)ext)->sadb_x_nat_t_port_port))
170 #define PFKEY_ADDR_X_NATTYPE(ext) ( ext != NULL && ((struct sadb_x_nat_t_type *)ext)->sadb_x_nat_t_type_type )
171 #endif
172
173
174 int pfkey_open __P((void));
175 void pfkey_close __P((int));
176 int pfkey_set_buffer_size __P((int, int));
177 struct sadb_msg *pfkey_recv __P((int));
178 int pfkey_send __P((int, struct sadb_msg *, int));
179 int pfkey_align __P((struct sadb_msg *, caddr_t *));
180 int pfkey_check __P((caddr_t *));
181
182 /*
183 * Deprecated, available for backward compatibility with third party
184 * libipsec users. Please use pfkey_send_update2 and pfkey_send_add2 instead
185 */
186 int pfkey_send_update __P((int, u_int, u_int, struct sockaddr *,
187 struct sockaddr *, u_int32_t, u_int32_t, u_int,
188 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
189 u_int64_t, u_int64_t, u_int32_t));
190 int pfkey_send_update_nat __P((int, u_int, u_int, struct sockaddr *,
191 struct sockaddr *, u_int32_t, u_int32_t, u_int,
192 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
193 u_int64_t, u_int64_t, u_int32_t,
194 u_int8_t, u_int16_t, u_int16_t, struct sockaddr *, u_int16_t));
195 int pfkey_send_add __P((int, u_int, u_int, struct sockaddr *,
196 struct sockaddr *, u_int32_t, u_int32_t, u_int,
197 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
198 u_int64_t, u_int64_t, u_int32_t));
199 int pfkey_send_add_nat __P((int, u_int, u_int, struct sockaddr *,
200 struct sockaddr *, u_int32_t, u_int32_t, u_int,
201 caddr_t, u_int, u_int, u_int, u_int, u_int, u_int32_t, u_int64_t,
202 u_int64_t, u_int64_t, u_int32_t,
203 u_int8_t, u_int16_t, u_int16_t, struct sockaddr *, u_int16_t));
204
205 #ifndef __SYSDEP_SA_LEN__
206 #define __SYSDEP_SA_LEN__
207 #include <netinet/in.h>
208
209 #ifndef IPPROTO_IPV4
210 #define IPPROTO_IPV4 IPPROTO_IPIP
211 #endif
212
213 #ifndef IPPROTO_IPCOMP
214 #define IPPROTO_IPCOMP IPPROTO_COMP
215 #endif
216
217 #ifndef IPPROTO_MH
218 #define IPPROTO_MH 135
219 #endif
220
221 static __inline u_int8_t
sysdep_sa_len(const struct sockaddr * sa)222 sysdep_sa_len (const struct sockaddr *sa)
223 {
224 #ifdef __linux__
225 switch (sa->sa_family)
226 {
227 case AF_INET:
228 return sizeof (struct sockaddr_in);
229 case AF_INET6:
230 return sizeof (struct sockaddr_in6);
231 }
232 // log_print ("sysdep_sa_len: unknown sa family %d", sa->sa_family);
233 return sizeof (struct sockaddr_in);
234 #else
235 return sa->sa_len;
236 #endif
237 }
238 #endif
239
240 #ifdef __cplusplus
241 }
242 #endif
243
244 #endif /* KAME_LIBPFKEY_H */
245
246 #endif /* _LIBPFKEY_H */
247