Commit | Line | Data |
---|---|---|
1c79356b A |
1 | /* $KAME: keydb.c,v 1.61 2000/03/25 07:24:13 sumikawa Exp $ */ |
2 | ||
3 | /* | |
4 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * 3. Neither the name of the project nor the names of its contributors | |
16 | * may be used to endorse or promote products derived from this software | |
17 | * without specific prior written permission. | |
18 | * | |
19 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND | |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE | |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
29 | * SUCH DAMAGE. | |
30 | */ | |
31 | ||
1c79356b A |
32 | #include <sys/types.h> |
33 | #include <sys/socket.h> | |
34 | #include <sys/param.h> | |
35 | #include <sys/systm.h> | |
36 | #include <sys/kernel.h> | |
37 | #include <sys/malloc.h> | |
38 | #include <sys/errno.h> | |
39 | #include <sys/queue.h> | |
40 | ||
41 | #include <net/if.h> | |
42 | #include <net/route.h> | |
43 | ||
44 | #include <netinet/in.h> | |
45 | ||
46 | #include <net/pfkeyv2.h> | |
47 | #include <netkey/keydb.h> | |
48 | #include <netinet6/ipsec.h> | |
49 | ||
50 | #include <net/net_osdep.h> | |
51 | ||
1c79356b | 52 | MALLOC_DEFINE(M_SECA, "key mgmt", "security associations, key management"); |
1c79356b | 53 | |
91447636 | 54 | static void keydb_delsecasvar(struct secasvar *); |
1c79356b A |
55 | |
56 | /* | |
57 | * secpolicy management | |
58 | */ | |
59 | struct secpolicy * | |
60 | keydb_newsecpolicy() | |
61 | { | |
62 | struct secpolicy *p; | |
63 | ||
0b4e3aa0 | 64 | p = (struct secpolicy *)_MALLOC(sizeof(*p), M_SECA, M_WAITOK); |
1c79356b A |
65 | if (!p) |
66 | return p; | |
67 | bzero(p, sizeof(*p)); | |
68 | return p; | |
69 | } | |
70 | ||
71 | void | |
72 | keydb_delsecpolicy(p) | |
73 | struct secpolicy *p; | |
74 | { | |
75 | ||
76 | _FREE(p, M_SECA); | |
77 | } | |
78 | ||
79 | /* | |
80 | * secashead management | |
81 | */ | |
82 | struct secashead * | |
83 | keydb_newsecashead() | |
84 | { | |
85 | struct secashead *p; | |
86 | int i; | |
87 | ||
0b4e3aa0 | 88 | p = (struct secashead *)_MALLOC(sizeof(*p), M_SECA, M_WAITOK); |
1c79356b A |
89 | if (!p) |
90 | return p; | |
91 | bzero(p, sizeof(*p)); | |
92 | for (i = 0; i < sizeof(p->savtree)/sizeof(p->savtree[0]); i++) | |
93 | LIST_INIT(&p->savtree[i]); | |
94 | return p; | |
95 | } | |
96 | ||
97 | void | |
98 | keydb_delsecashead(p) | |
99 | struct secashead *p; | |
100 | { | |
101 | ||
102 | _FREE(p, M_SECA); | |
103 | } | |
104 | ||
105 | /* | |
106 | * secasvar management (reference counted) | |
107 | */ | |
108 | struct secasvar * | |
109 | keydb_newsecasvar() | |
110 | { | |
111 | struct secasvar *p; | |
112 | ||
0b4e3aa0 | 113 | p = (struct secasvar *)_MALLOC(sizeof(*p), M_SECA, M_WAITOK); |
1c79356b A |
114 | if (!p) |
115 | return p; | |
116 | bzero(p, sizeof(*p)); | |
117 | p->refcnt = 1; | |
118 | return p; | |
119 | } | |
120 | ||
121 | void | |
122 | keydb_refsecasvar(p) | |
123 | struct secasvar *p; | |
124 | { | |
125 | int s; | |
126 | ||
1c79356b | 127 | s = splnet(); |
1c79356b A |
128 | p->refcnt++; |
129 | splx(s); | |
130 | } | |
131 | ||
132 | void | |
133 | keydb_freesecasvar(p) | |
134 | struct secasvar *p; | |
135 | { | |
136 | int s; | |
137 | ||
1c79356b | 138 | s = splnet(); |
1c79356b | 139 | p->refcnt--; |
9bccf70c A |
140 | /* negative refcnt will cause panic intentionally */ |
141 | if (p->refcnt <= 0) | |
1c79356b A |
142 | keydb_delsecasvar(p); |
143 | splx(s); | |
144 | } | |
145 | ||
146 | static void | |
147 | keydb_delsecasvar(p) | |
148 | struct secasvar *p; | |
149 | { | |
150 | ||
151 | if (p->refcnt) | |
152 | panic("keydb_delsecasvar called with refcnt != 0"); | |
153 | ||
154 | _FREE(p, M_SECA); | |
155 | } | |
156 | ||
157 | /* | |
158 | * secreplay management | |
159 | */ | |
160 | struct secreplay * | |
161 | keydb_newsecreplay(wsize) | |
162 | size_t wsize; | |
163 | { | |
164 | struct secreplay *p; | |
165 | ||
0b4e3aa0 | 166 | p = (struct secreplay *)_MALLOC(sizeof(*p), M_SECA, M_WAITOK); |
1c79356b A |
167 | if (!p) |
168 | return p; | |
169 | ||
170 | bzero(p, sizeof(*p)); | |
171 | if (wsize != 0) { | |
0b4e3aa0 | 172 | p->bitmap = (caddr_t)_MALLOC(wsize, M_SECA, M_WAITOK); |
1c79356b A |
173 | if (!p->bitmap) { |
174 | _FREE(p, M_SECA); | |
175 | return NULL; | |
176 | } | |
177 | bzero(p->bitmap, wsize); | |
178 | } | |
179 | p->wsize = wsize; | |
180 | return p; | |
181 | } | |
182 | ||
183 | void | |
184 | keydb_delsecreplay(p) | |
185 | struct secreplay *p; | |
186 | { | |
187 | ||
188 | if (p->bitmap) | |
189 | _FREE(p->bitmap, M_SECA); | |
190 | _FREE(p, M_SECA); | |
191 | } | |
192 | ||
193 | /* | |
194 | * secreg management | |
195 | */ | |
196 | struct secreg * | |
197 | keydb_newsecreg() | |
198 | { | |
199 | struct secreg *p; | |
200 | ||
0b4e3aa0 | 201 | p = (struct secreg *)_MALLOC(sizeof(*p), M_SECA, M_WAITOK); |
1c79356b A |
202 | if (p) |
203 | bzero(p, sizeof(*p)); | |
204 | return p; | |
205 | } | |
206 | ||
207 | void | |
208 | keydb_delsecreg(p) | |
209 | struct secreg *p; | |
210 | { | |
211 | ||
212 | _FREE(p, M_SECA); | |
213 | } |