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1 | /* |
2 | * Written by Viktor Dukhovni (viktor@openssl.org) for the OpenSSL project | |
3 | * 2015. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2015 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | #ifndef HEADER_INTERNAL_DANE_H | |
59 | #define HEADER_INTERNAL_DANE_H | |
60 | ||
61 | #include <openssl/safestack.h> | |
62 | ||
63 | /*- | |
64 | * Certificate usages: | |
65 | * https://tools.ietf.org/html/rfc6698#section-2.1.1 | |
66 | */ | |
67 | #define DANETLS_USAGE_PKIX_TA 0 | |
68 | #define DANETLS_USAGE_PKIX_EE 1 | |
69 | #define DANETLS_USAGE_DANE_TA 2 | |
70 | #define DANETLS_USAGE_DANE_EE 3 | |
71 | #define DANETLS_USAGE_LAST DANETLS_USAGE_DANE_EE | |
72 | ||
73 | /*- | |
74 | * Selectors: | |
75 | * https://tools.ietf.org/html/rfc6698#section-2.1.2 | |
76 | */ | |
77 | #define DANETLS_SELECTOR_CERT 0 | |
78 | #define DANETLS_SELECTOR_SPKI 1 | |
79 | #define DANETLS_SELECTOR_LAST DANETLS_SELECTOR_SPKI | |
80 | ||
81 | /*- | |
82 | * Matching types: | |
83 | * https://tools.ietf.org/html/rfc6698#section-2.1.3 | |
84 | */ | |
85 | #define DANETLS_MATCHING_FULL 0 | |
86 | #define DANETLS_MATCHING_2256 1 | |
87 | #define DANETLS_MATCHING_2512 2 | |
88 | #define DANETLS_MATCHING_LAST DANETLS_MATCHING_2512 | |
89 | ||
90 | typedef struct danetls_record_st { | |
91 | uint8_t usage; | |
92 | uint8_t selector; | |
93 | uint8_t mtype; | |
94 | unsigned char *data; | |
95 | size_t dlen; | |
96 | EVP_PKEY *spki; | |
97 | } danetls_record; | |
98 | ||
4a1f3f27 DSH |
99 | DEFINE_STACK_OF(danetls_record) |
100 | ||
919ba009 VD |
101 | /* |
102 | * Shared DANE context | |
103 | */ | |
104 | struct dane_ctx_st { | |
105 | const EVP_MD **mdevp; /* mtype -> digest */ | |
106 | uint8_t *mdord; /* mtype -> preference */ | |
107 | uint8_t mdmax; /* highest supported mtype */ | |
108 | }; | |
109 | ||
110 | /* | |
111 | * Per connection DANE state | |
112 | */ | |
113 | struct dane_st { | |
114 | struct dane_ctx_st *dctx; | |
115 | STACK_OF(danetls_record) *trecs; | |
116 | STACK_OF(X509) *certs; /* DANE-TA(2) Cert(0) Full(0) certs */ | |
117 | danetls_record *mtlsa; /* Matching TLSA record */ | |
118 | X509 *mcert; /* DANE matched cert */ | |
119 | uint32_t umask; /* Usages present */ | |
120 | int mdpth; /* Depth of matched cert */ | |
121 | int pdpth; /* Depth of PKIX trust */ | |
122 | }; | |
123 | ||
124 | #define DANETLS_ENABLED(dane) ((dane) && ((dane)->trecs != NULL)) | |
125 | ||
126 | #define DANETLS_USAGE_BIT(u) (((uint32_t)1) << u) | |
127 | ||
128 | #define DANETLS_PKIX_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_TA)) | |
129 | #define DANETLS_PKIX_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_PKIX_EE)) | |
130 | #define DANETLS_DANE_TA_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_TA)) | |
131 | #define DANETLS_DANE_EE_MASK (DANETLS_USAGE_BIT(DANETLS_USAGE_DANE_EE)) | |
132 | ||
133 | #define DANETLS_PKIX_MASK (DANETLS_PKIX_TA_MASK | DANETLS_PKIX_EE_MASK) | |
134 | #define DANETLS_DANE_MASK (DANETLS_DANE_TA_MASK | DANETLS_DANE_EE_MASK) | |
135 | #define DANETLS_TA_MASK (DANETLS_PKIX_TA_MASK | DANETLS_DANE_TA_MASK) | |
136 | #define DANETLS_EE_MASK (DANETLS_PKIX_EE_MASK | DANETLS_DANE_EE_MASK) | |
137 | ||
138 | #define DANETLS_HAS_PKIX(dane) ((dane) && ((dane)->umask & DANETLS_PKIX_MASK)) | |
139 | #define DANETLS_HAS_DANE(dane) ((dane) && ((dane)->umask & DANETLS_DANE_MASK)) | |
140 | #define DANETLS_HAS_TA(dane) ((dane) && ((dane)->umask & DANETLS_TA_MASK)) | |
141 | #define DANETLS_HAS_EE(dane) ((dane) && ((dane)->umask & DANETLS_EE_MASK)) | |
142 | ||
143 | #define DANETLS_HAS_PKIX_TA(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_TA_MASK)) | |
144 | #define DANETLS_HAS_PKIX_EE(dane) ((dane)&&((dane)->umask & DANETLS_PKIX_EE_MASK)) | |
145 | #define DANETLS_HAS_DANE_TA(dane) ((dane)&&((dane)->umask & DANETLS_DANE_TA_MASK)) | |
146 | #define DANETLS_HAS_DANE_EE(dane) ((dane)&&((dane)->umask & DANETLS_DANE_EE_MASK)) | |
147 | ||
148 | #endif /* HEADER_INTERNAL_DANE_H */ |