]>
Commit | Line | Data |
---|---|---|
9d987de3 TS |
1 | /* |
2 | * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
e74bd290 RL |
10 | #include <openssl/evp.h> |
11 | #include <openssl/err.h> | |
12 | #include <openssl/core.h> | |
23c48d94 | 13 | #include <openssl/core_dispatch.h> |
e74bd290 | 14 | #include "internal/provider.h" |
6c9bc258 TM |
15 | #include "internal/core.h" |
16 | #include "crypto/evp.h" | |
706457b7 | 17 | #include "evp_local.h" |
e74bd290 RL |
18 | |
19 | static int evp_mac_up_ref(void *vmac) | |
20 | { | |
21 | EVP_MAC *mac = vmac; | |
22 | int ref = 0; | |
23 | ||
24 | CRYPTO_UP_REF(&mac->refcnt, &ref, mac->lock); | |
25 | return 1; | |
26 | } | |
27 | ||
28 | static void evp_mac_free(void *vmac) | |
29 | { | |
30 | EVP_MAC *mac = vmac; | |
31 | int ref = 0; | |
32 | ||
33 | if (mac == NULL) | |
34 | return; | |
35 | ||
36 | CRYPTO_DOWN_REF(&mac->refcnt, &ref, mac->lock); | |
37 | if (ref > 0) | |
38 | return; | |
6c9bc258 | 39 | OPENSSL_free(mac->type_name); |
e74bd290 | 40 | ossl_provider_free(mac->prov); |
e74bd290 RL |
41 | CRYPTO_THREAD_lock_free(mac->lock); |
42 | OPENSSL_free(mac); | |
43 | } | |
44 | ||
45 | static void *evp_mac_new(void) | |
46 | { | |
47 | EVP_MAC *mac = NULL; | |
48 | ||
49 | if ((mac = OPENSSL_zalloc(sizeof(*mac))) == NULL | |
50 | || (mac->lock = CRYPTO_THREAD_lock_new()) == NULL) { | |
51 | evp_mac_free(mac); | |
52 | return NULL; | |
53 | } | |
54 | ||
55 | mac->refcnt = 1; | |
56 | ||
57 | return mac; | |
58 | } | |
59 | ||
309a78aa RL |
60 | static void *evp_mac_from_algorithm(int name_id, |
61 | const OSSL_ALGORITHM *algodef, | |
62 | OSSL_PROVIDER *prov) | |
e74bd290 | 63 | { |
309a78aa | 64 | const OSSL_DISPATCH *fns = algodef->implementation; |
e74bd290 RL |
65 | EVP_MAC *mac = NULL; |
66 | int fnmaccnt = 0, fnctxcnt = 0; | |
67 | ||
f7c16d48 | 68 | if ((mac = evp_mac_new()) == NULL) { |
e077455e | 69 | ERR_raise(ERR_LIB_EVP, ERR_R_EVP_LIB); |
e74bd290 RL |
70 | return NULL; |
71 | } | |
f7c16d48 | 72 | mac->name_id = name_id; |
6c9bc258 TM |
73 | if ((mac->type_name = ossl_algorithm_get1_first_name(algodef)) == NULL) { |
74 | evp_mac_free(mac); | |
75 | return NULL; | |
76 | } | |
309a78aa | 77 | mac->description = algodef->algorithm_description; |
e74bd290 RL |
78 | |
79 | for (; fns->function_id != 0; fns++) { | |
80 | switch (fns->function_id) { | |
81 | case OSSL_FUNC_MAC_NEWCTX: | |
82 | if (mac->newctx != NULL) | |
83 | break; | |
363b1e5d | 84 | mac->newctx = OSSL_FUNC_mac_newctx(fns); |
e74bd290 RL |
85 | fnctxcnt++; |
86 | break; | |
87 | case OSSL_FUNC_MAC_DUPCTX: | |
88 | if (mac->dupctx != NULL) | |
89 | break; | |
363b1e5d | 90 | mac->dupctx = OSSL_FUNC_mac_dupctx(fns); |
e74bd290 RL |
91 | break; |
92 | case OSSL_FUNC_MAC_FREECTX: | |
93 | if (mac->freectx != NULL) | |
94 | break; | |
363b1e5d | 95 | mac->freectx = OSSL_FUNC_mac_freectx(fns); |
e74bd290 RL |
96 | fnctxcnt++; |
97 | break; | |
98 | case OSSL_FUNC_MAC_INIT: | |
99 | if (mac->init != NULL) | |
100 | break; | |
363b1e5d | 101 | mac->init = OSSL_FUNC_mac_init(fns); |
e74bd290 RL |
102 | fnmaccnt++; |
103 | break; | |
104 | case OSSL_FUNC_MAC_UPDATE: | |
105 | if (mac->update != NULL) | |
106 | break; | |
363b1e5d | 107 | mac->update = OSSL_FUNC_mac_update(fns); |
e74bd290 RL |
108 | fnmaccnt++; |
109 | break; | |
110 | case OSSL_FUNC_MAC_FINAL: | |
111 | if (mac->final != NULL) | |
112 | break; | |
363b1e5d | 113 | mac->final = OSSL_FUNC_mac_final(fns); |
e74bd290 RL |
114 | fnmaccnt++; |
115 | break; | |
116 | case OSSL_FUNC_MAC_GETTABLE_PARAMS: | |
117 | if (mac->gettable_params != NULL) | |
118 | break; | |
119 | mac->gettable_params = | |
363b1e5d | 120 | OSSL_FUNC_mac_gettable_params(fns); |
e74bd290 RL |
121 | break; |
122 | case OSSL_FUNC_MAC_GETTABLE_CTX_PARAMS: | |
123 | if (mac->gettable_ctx_params != NULL) | |
124 | break; | |
125 | mac->gettable_ctx_params = | |
363b1e5d | 126 | OSSL_FUNC_mac_gettable_ctx_params(fns); |
e74bd290 RL |
127 | break; |
128 | case OSSL_FUNC_MAC_SETTABLE_CTX_PARAMS: | |
129 | if (mac->settable_ctx_params != NULL) | |
130 | break; | |
131 | mac->settable_ctx_params = | |
363b1e5d | 132 | OSSL_FUNC_mac_settable_ctx_params(fns); |
e74bd290 RL |
133 | break; |
134 | case OSSL_FUNC_MAC_GET_PARAMS: | |
135 | if (mac->get_params != NULL) | |
136 | break; | |
363b1e5d | 137 | mac->get_params = OSSL_FUNC_mac_get_params(fns); |
e74bd290 | 138 | break; |
92d9d0ae RL |
139 | case OSSL_FUNC_MAC_GET_CTX_PARAMS: |
140 | if (mac->get_ctx_params != NULL) | |
e74bd290 | 141 | break; |
363b1e5d | 142 | mac->get_ctx_params = OSSL_FUNC_mac_get_ctx_params(fns); |
e74bd290 | 143 | break; |
92d9d0ae RL |
144 | case OSSL_FUNC_MAC_SET_CTX_PARAMS: |
145 | if (mac->set_ctx_params != NULL) | |
e74bd290 | 146 | break; |
363b1e5d | 147 | mac->set_ctx_params = OSSL_FUNC_mac_set_ctx_params(fns); |
e74bd290 RL |
148 | break; |
149 | } | |
150 | } | |
151 | if (fnmaccnt != 3 | |
152 | || fnctxcnt != 2) { | |
153 | /* | |
154 | * In order to be a consistent set of functions we must have at least | |
155 | * a complete set of "mac" functions, and a complete set of context | |
156 | * management functions, as well as the size function. | |
157 | */ | |
158 | evp_mac_free(mac); | |
159 | ERR_raise(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS); | |
160 | return NULL; | |
161 | } | |
162 | mac->prov = prov; | |
163 | if (prov != NULL) | |
164 | ossl_provider_up_ref(prov); | |
165 | ||
166 | return mac; | |
167 | } | |
168 | ||
b4250010 | 169 | EVP_MAC *EVP_MAC_fetch(OSSL_LIB_CTX *libctx, const char *algorithm, |
e74bd290 RL |
170 | const char *properties) |
171 | { | |
172 | return evp_generic_fetch(libctx, OSSL_OP_MAC, algorithm, properties, | |
309a78aa | 173 | evp_mac_from_algorithm, evp_mac_up_ref, |
e74bd290 RL |
174 | evp_mac_free); |
175 | } | |
176 | ||
177 | int EVP_MAC_up_ref(EVP_MAC *mac) | |
178 | { | |
179 | return evp_mac_up_ref(mac); | |
180 | } | |
181 | ||
182 | void EVP_MAC_free(EVP_MAC *mac) | |
183 | { | |
184 | evp_mac_free(mac); | |
185 | } | |
186 | ||
ed576acd | 187 | const OSSL_PROVIDER *EVP_MAC_get0_provider(const EVP_MAC *mac) |
7dd0f299 RL |
188 | { |
189 | return mac->prov; | |
190 | } | |
191 | ||
e74bd290 RL |
192 | const OSSL_PARAM *EVP_MAC_gettable_params(const EVP_MAC *mac) |
193 | { | |
194 | if (mac->gettable_params == NULL) | |
195 | return NULL; | |
ed576acd | 196 | return mac->gettable_params(ossl_provider_ctx(EVP_MAC_get0_provider(mac))); |
e74bd290 RL |
197 | } |
198 | ||
41f7ecf3 | 199 | const OSSL_PARAM *EVP_MAC_gettable_ctx_params(const EVP_MAC *mac) |
e74bd290 | 200 | { |
35c76a52 P |
201 | void *alg; |
202 | ||
e74bd290 RL |
203 | if (mac->gettable_ctx_params == NULL) |
204 | return NULL; | |
ed576acd | 205 | alg = ossl_provider_ctx(EVP_MAC_get0_provider(mac)); |
35c76a52 | 206 | return mac->gettable_ctx_params(NULL, alg); |
e74bd290 RL |
207 | } |
208 | ||
41f7ecf3 | 209 | const OSSL_PARAM *EVP_MAC_settable_ctx_params(const EVP_MAC *mac) |
e74bd290 | 210 | { |
35c76a52 P |
211 | void *alg; |
212 | ||
e74bd290 RL |
213 | if (mac->settable_ctx_params == NULL) |
214 | return NULL; | |
ed576acd | 215 | alg = ossl_provider_ctx(EVP_MAC_get0_provider(mac)); |
35c76a52 P |
216 | return mac->settable_ctx_params(NULL, alg); |
217 | } | |
218 | ||
219 | const OSSL_PARAM *EVP_MAC_CTX_gettable_params(EVP_MAC_CTX *ctx) | |
220 | { | |
221 | void *alg; | |
222 | ||
223 | if (ctx->meth->gettable_ctx_params == NULL) | |
224 | return NULL; | |
ed576acd | 225 | alg = ossl_provider_ctx(EVP_MAC_get0_provider(ctx->meth)); |
7c14d0c1 | 226 | return ctx->meth->gettable_ctx_params(ctx->algctx, alg); |
35c76a52 P |
227 | } |
228 | ||
229 | const OSSL_PARAM *EVP_MAC_CTX_settable_params(EVP_MAC_CTX *ctx) | |
230 | { | |
231 | void *alg; | |
232 | ||
233 | if (ctx->meth->settable_ctx_params == NULL) | |
234 | return NULL; | |
ed576acd | 235 | alg = ossl_provider_ctx(EVP_MAC_get0_provider(ctx->meth)); |
7c14d0c1 | 236 | return ctx->meth->settable_ctx_params(ctx->algctx, alg); |
e74bd290 | 237 | } |
d1cafb08 | 238 | |
b4250010 | 239 | void EVP_MAC_do_all_provided(OSSL_LIB_CTX *libctx, |
251e610c RL |
240 | void (*fn)(EVP_MAC *mac, void *arg), |
241 | void *arg) | |
d1cafb08 RL |
242 | { |
243 | evp_generic_do_all(libctx, OSSL_OP_MAC, | |
244 | (void (*)(void *, void *))fn, arg, | |
cd770738 | 245 | evp_mac_from_algorithm, evp_mac_up_ref, evp_mac_free); |
d1cafb08 | 246 | } |