]>
Commit | Line | Data |
---|---|---|
ece9304c | 1 | /* |
4333b89f | 2 | * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved. |
ece9304c RL |
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 | ||
10 | #include <openssl/core.h> | |
11 | #include <openssl/core_dispatch.h> | |
12 | #include <openssl/encoder.h> | |
13 | #include <openssl/ui.h> | |
14 | #include "internal/core.h" | |
15 | #include "internal/namemap.h" | |
16 | #include "internal/property.h" | |
17 | #include "internal/provider.h" | |
18 | #include "crypto/encoder.h" | |
19 | #include "encoder_local.h" | |
20 | ||
21 | /* | |
22 | * Encoder can have multiple names, separated with colons in a name string | |
23 | */ | |
24 | #define NAME_SEPARATOR ':' | |
25 | ||
26 | /* Simple method structure constructor and destructor */ | |
27 | static OSSL_ENCODER *ossl_encoder_new(void) | |
28 | { | |
29 | OSSL_ENCODER *encoder = NULL; | |
30 | ||
31 | if ((encoder = OPENSSL_zalloc(sizeof(*encoder))) == NULL | |
32 | || (encoder->base.lock = CRYPTO_THREAD_lock_new()) == NULL) { | |
33 | OSSL_ENCODER_free(encoder); | |
34 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_MALLOC_FAILURE); | |
35 | return NULL; | |
36 | } | |
37 | ||
38 | encoder->base.refcnt = 1; | |
39 | ||
40 | return encoder; | |
41 | } | |
42 | ||
43 | int OSSL_ENCODER_up_ref(OSSL_ENCODER *encoder) | |
44 | { | |
45 | int ref = 0; | |
46 | ||
47 | CRYPTO_UP_REF(&encoder->base.refcnt, &ref, encoder->base.lock); | |
48 | return 1; | |
49 | } | |
50 | ||
51 | void OSSL_ENCODER_free(OSSL_ENCODER *encoder) | |
52 | { | |
53 | int ref = 0; | |
54 | ||
55 | if (encoder == NULL) | |
56 | return; | |
57 | ||
58 | CRYPTO_DOWN_REF(&encoder->base.refcnt, &ref, encoder->base.lock); | |
59 | if (ref > 0) | |
60 | return; | |
49664117 | 61 | OPENSSL_free(encoder->base.name); |
ece9304c RL |
62 | ossl_provider_free(encoder->base.prov); |
63 | CRYPTO_THREAD_lock_free(encoder->base.lock); | |
64 | OPENSSL_free(encoder); | |
65 | } | |
66 | ||
67 | /* Permanent encoder method store, constructor and destructor */ | |
68 | static void encoder_store_free(void *vstore) | |
69 | { | |
70 | ossl_method_store_free(vstore); | |
71 | } | |
72 | ||
b4250010 | 73 | static void *encoder_store_new(OSSL_LIB_CTX *ctx) |
ece9304c RL |
74 | { |
75 | return ossl_method_store_new(ctx); | |
76 | } | |
77 | ||
78 | ||
b4250010 | 79 | static const OSSL_LIB_CTX_METHOD encoder_store_method = { |
a16d2174 | 80 | OSSL_LIB_CTX_METHOD_DEFAULT_PRIORITY, |
ece9304c RL |
81 | encoder_store_new, |
82 | encoder_store_free, | |
83 | }; | |
84 | ||
85 | /* Data to be passed through ossl_method_construct() */ | |
86 | struct encoder_data_st { | |
b4250010 | 87 | OSSL_LIB_CTX *libctx; |
ece9304c RL |
88 | OSSL_METHOD_CONSTRUCT_METHOD *mcm; |
89 | int id; /* For get_encoder_from_store() */ | |
90 | const char *names; /* For get_encoder_from_store() */ | |
91 | const char *propquery; /* For get_encoder_from_store() */ | |
d6d42cda | 92 | |
e3a2ba75 | 93 | unsigned int flag_construct_error_occurred : 1; |
ece9304c RL |
94 | }; |
95 | ||
96 | /* | |
97 | * Generic routines to fetch / create ENCODER methods with | |
98 | * ossl_method_construct() | |
99 | */ | |
100 | ||
101 | /* Temporary encoder method store, constructor and destructor */ | |
b4250010 | 102 | static void *alloc_tmp_encoder_store(OSSL_LIB_CTX *ctx) |
ece9304c RL |
103 | { |
104 | return ossl_method_store_new(ctx); | |
105 | } | |
106 | ||
107 | static void dealloc_tmp_encoder_store(void *store) | |
108 | { | |
109 | if (store != NULL) | |
110 | ossl_method_store_free(store); | |
111 | } | |
112 | ||
113 | /* Get the permanent encoder store */ | |
b4250010 | 114 | static OSSL_METHOD_STORE *get_encoder_store(OSSL_LIB_CTX *libctx) |
ece9304c | 115 | { |
b4250010 DMSP |
116 | return ossl_lib_ctx_get_data(libctx, OSSL_LIB_CTX_ENCODER_STORE_INDEX, |
117 | &encoder_store_method); | |
ece9304c RL |
118 | } |
119 | ||
120 | /* Get encoder methods from a store, or put one in */ | |
b4250010 | 121 | static void *get_encoder_from_store(OSSL_LIB_CTX *libctx, void *store, |
ece9304c RL |
122 | void *data) |
123 | { | |
124 | struct encoder_data_st *methdata = data; | |
125 | void *method = NULL; | |
126 | int id; | |
127 | ||
128 | if ((id = methdata->id) == 0) { | |
129 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); | |
130 | ||
131 | id = ossl_namemap_name2num(namemap, methdata->names); | |
132 | } | |
133 | ||
134 | if (store == NULL | |
135 | && (store = get_encoder_store(libctx)) == NULL) | |
136 | return NULL; | |
137 | ||
138 | if (!ossl_method_store_fetch(store, id, methdata->propquery, &method)) | |
139 | return NULL; | |
140 | return method; | |
141 | } | |
142 | ||
b4250010 | 143 | static int put_encoder_in_store(OSSL_LIB_CTX *libctx, void *store, |
ece9304c RL |
144 | void *method, const OSSL_PROVIDER *prov, |
145 | int operation_id, const char *names, | |
146 | const char *propdef, void *unused) | |
147 | { | |
148 | OSSL_NAMEMAP *namemap; | |
149 | int id; | |
150 | ||
151 | if ((namemap = ossl_namemap_stored(libctx)) == NULL | |
152 | || (id = ossl_namemap_name2num(namemap, names)) == 0) | |
153 | return 0; | |
154 | ||
155 | if (store == NULL && (store = get_encoder_store(libctx)) == NULL) | |
156 | return 0; | |
157 | ||
158 | return ossl_method_store_add(store, prov, id, propdef, method, | |
159 | (int (*)(void *))OSSL_ENCODER_up_ref, | |
160 | (void (*)(void *))OSSL_ENCODER_free); | |
161 | } | |
162 | ||
163 | /* Create and populate a encoder method */ | |
309a78aa RL |
164 | static void *encoder_from_algorithm(int id, const OSSL_ALGORITHM *algodef, |
165 | OSSL_PROVIDER *prov) | |
ece9304c RL |
166 | { |
167 | OSSL_ENCODER *encoder = NULL; | |
168 | const OSSL_DISPATCH *fns = algodef->implementation; | |
169 | ||
170 | if ((encoder = ossl_encoder_new()) == NULL) | |
171 | return NULL; | |
172 | encoder->base.id = id; | |
49664117 P |
173 | if ((encoder->base.name = ossl_algorithm_get1_first_name(algodef)) == NULL) { |
174 | OSSL_ENCODER_free(encoder); | |
175 | return NULL; | |
176 | } | |
ece9304c | 177 | encoder->base.propdef = algodef->property_definition; |
309a78aa | 178 | encoder->base.description = algodef->algorithm_description; |
ece9304c RL |
179 | |
180 | for (; fns->function_id != 0; fns++) { | |
181 | switch (fns->function_id) { | |
182 | case OSSL_FUNC_ENCODER_NEWCTX: | |
183 | if (encoder->newctx == NULL) | |
184 | encoder->newctx = | |
185 | OSSL_FUNC_encoder_newctx(fns); | |
186 | break; | |
187 | case OSSL_FUNC_ENCODER_FREECTX: | |
188 | if (encoder->freectx == NULL) | |
189 | encoder->freectx = | |
190 | OSSL_FUNC_encoder_freectx(fns); | |
191 | break; | |
b8975c68 RL |
192 | case OSSL_FUNC_ENCODER_GET_PARAMS: |
193 | if (encoder->get_params == NULL) | |
194 | encoder->get_params = | |
195 | OSSL_FUNC_encoder_get_params(fns); | |
196 | break; | |
197 | case OSSL_FUNC_ENCODER_GETTABLE_PARAMS: | |
198 | if (encoder->gettable_params == NULL) | |
199 | encoder->gettable_params = | |
200 | OSSL_FUNC_encoder_gettable_params(fns); | |
201 | break; | |
ece9304c RL |
202 | case OSSL_FUNC_ENCODER_SET_CTX_PARAMS: |
203 | if (encoder->set_ctx_params == NULL) | |
204 | encoder->set_ctx_params = | |
205 | OSSL_FUNC_encoder_set_ctx_params(fns); | |
206 | break; | |
207 | case OSSL_FUNC_ENCODER_SETTABLE_CTX_PARAMS: | |
208 | if (encoder->settable_ctx_params == NULL) | |
209 | encoder->settable_ctx_params = | |
210 | OSSL_FUNC_encoder_settable_ctx_params(fns); | |
211 | break; | |
cd861ab7 RL |
212 | case OSSL_FUNC_ENCODER_DOES_SELECTION: |
213 | if (encoder->does_selection == NULL) | |
214 | encoder->does_selection = | |
215 | OSSL_FUNC_encoder_does_selection(fns); | |
216 | break; | |
b8975c68 RL |
217 | case OSSL_FUNC_ENCODER_ENCODE: |
218 | if (encoder->encode == NULL) | |
219 | encoder->encode = OSSL_FUNC_encoder_encode(fns); | |
220 | break; | |
221 | case OSSL_FUNC_ENCODER_IMPORT_OBJECT: | |
222 | if (encoder->import_object == NULL) | |
223 | encoder->import_object = | |
224 | OSSL_FUNC_encoder_import_object(fns); | |
ece9304c | 225 | break; |
b8975c68 RL |
226 | case OSSL_FUNC_ENCODER_FREE_OBJECT: |
227 | if (encoder->free_object == NULL) | |
228 | encoder->free_object = | |
229 | OSSL_FUNC_encoder_free_object(fns); | |
ece9304c RL |
230 | break; |
231 | } | |
232 | } | |
233 | /* | |
234 | * Try to check that the method is sensible. | |
235 | * If you have a constructor, you must have a destructor and vice versa. | |
b8975c68 | 236 | * You must have the encoding driver functions. |
ece9304c RL |
237 | */ |
238 | if (!((encoder->newctx == NULL && encoder->freectx == NULL) | |
b8975c68 RL |
239 | || (encoder->newctx != NULL && encoder->freectx != NULL) |
240 | || (encoder->import_object != NULL && encoder->free_object != NULL) | |
241 | || (encoder->import_object == NULL && encoder->free_object == NULL)) | |
242 | || encoder->encode == NULL | |
243 | || encoder->gettable_params == NULL | |
244 | || encoder->get_params == NULL) { | |
ece9304c RL |
245 | OSSL_ENCODER_free(encoder); |
246 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_INVALID_PROVIDER_FUNCTIONS); | |
247 | return NULL; | |
248 | } | |
249 | ||
250 | if (prov != NULL && !ossl_provider_up_ref(prov)) { | |
251 | OSSL_ENCODER_free(encoder); | |
252 | return NULL; | |
253 | } | |
254 | ||
255 | encoder->base.prov = prov; | |
256 | return encoder; | |
257 | } | |
258 | ||
259 | ||
260 | /* | |
261 | * The core fetching functionality passes the names of the implementation. | |
262 | * This function is responsible to getting an identity number for them, | |
309a78aa | 263 | * then call encoder_from_algorithm() with that identity number. |
ece9304c RL |
264 | */ |
265 | static void *construct_encoder(const OSSL_ALGORITHM *algodef, | |
d6d42cda | 266 | OSSL_PROVIDER *prov, void *data) |
ece9304c RL |
267 | { |
268 | /* | |
269 | * This function is only called if get_encoder_from_store() returned | |
270 | * NULL, so it's safe to say that of all the spots to create a new | |
271 | * namemap entry, this is it. Should the name already exist there, we | |
272 | * know that ossl_namemap_add() will return its corresponding number. | |
273 | */ | |
d6d42cda | 274 | struct encoder_data_st *methdata = data; |
a829b735 | 275 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); |
ece9304c RL |
276 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); |
277 | const char *names = algodef->algorithm_names; | |
278 | int id = ossl_namemap_add_names(namemap, 0, names, NAME_SEPARATOR); | |
279 | void *method = NULL; | |
280 | ||
281 | if (id != 0) | |
309a78aa | 282 | method = encoder_from_algorithm(id, algodef, prov); |
ece9304c | 283 | |
d6d42cda RL |
284 | /* |
285 | * Flag to indicate that there was actual construction errors. This | |
286 | * helps inner_evp_generic_fetch() determine what error it should | |
287 | * record on inaccessible algorithms. | |
288 | */ | |
289 | if (method == NULL) | |
e3a2ba75 | 290 | methdata->flag_construct_error_occurred = 1; |
d6d42cda | 291 | |
ece9304c RL |
292 | return method; |
293 | } | |
294 | ||
295 | /* Intermediary function to avoid ugly casts, used below */ | |
296 | static void destruct_encoder(void *method, void *data) | |
297 | { | |
298 | OSSL_ENCODER_free(method); | |
299 | } | |
300 | ||
301 | static int up_ref_encoder(void *method) | |
302 | { | |
303 | return OSSL_ENCODER_up_ref(method); | |
304 | } | |
305 | ||
306 | static void free_encoder(void *method) | |
307 | { | |
308 | OSSL_ENCODER_free(method); | |
309 | } | |
310 | ||
311 | /* Fetching support. Can fetch by numeric identity or by name */ | |
b4250010 | 312 | static OSSL_ENCODER *inner_ossl_encoder_fetch(OSSL_LIB_CTX *libctx, |
ece9304c RL |
313 | int id, const char *name, |
314 | const char *properties) | |
315 | { | |
316 | OSSL_METHOD_STORE *store = get_encoder_store(libctx); | |
317 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); | |
318 | void *method = NULL; | |
d6d42cda | 319 | int unsupported = 0; |
ece9304c | 320 | |
d6d42cda RL |
321 | if (store == NULL || namemap == NULL) { |
322 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_PASSED_INVALID_ARGUMENT); | |
ece9304c | 323 | return NULL; |
d6d42cda | 324 | } |
ece9304c RL |
325 | |
326 | /* | |
327 | * If we have been passed neither a name_id or a name, we have an | |
328 | * internal programming error. | |
329 | */ | |
d6d42cda RL |
330 | if (!ossl_assert(id != 0 || name != NULL)) { |
331 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_INTERNAL_ERROR); | |
ece9304c | 332 | return NULL; |
d6d42cda | 333 | } |
ece9304c RL |
334 | |
335 | if (id == 0) | |
336 | id = ossl_namemap_name2num(namemap, name); | |
337 | ||
d6d42cda RL |
338 | /* |
339 | * If we haven't found the name yet, chances are that the algorithm to | |
340 | * be fetched is unsupported. | |
341 | */ | |
342 | if (id == 0) | |
343 | unsupported = 1; | |
344 | ||
ece9304c RL |
345 | if (id == 0 |
346 | || !ossl_method_store_cache_get(store, id, properties, &method)) { | |
347 | OSSL_METHOD_CONSTRUCT_METHOD mcm = { | |
348 | alloc_tmp_encoder_store, | |
349 | dealloc_tmp_encoder_store, | |
350 | get_encoder_from_store, | |
351 | put_encoder_in_store, | |
352 | construct_encoder, | |
353 | destruct_encoder | |
354 | }; | |
355 | struct encoder_data_st mcmdata; | |
356 | ||
357 | mcmdata.libctx = libctx; | |
358 | mcmdata.mcm = &mcm; | |
359 | mcmdata.id = id; | |
360 | mcmdata.names = name; | |
361 | mcmdata.propquery = properties; | |
e3a2ba75 | 362 | mcmdata.flag_construct_error_occurred = 0; |
ece9304c RL |
363 | if ((method = ossl_method_construct(libctx, OSSL_OP_ENCODER, |
364 | 0 /* !force_cache */, | |
365 | &mcm, &mcmdata)) != NULL) { | |
366 | /* | |
367 | * If construction did create a method for us, we know that | |
368 | * there is a correct name_id and meth_id, since those have | |
369 | * already been calculated in get_encoder_from_store() and | |
370 | * put_encoder_in_store() above. | |
371 | */ | |
372 | if (id == 0) | |
373 | id = ossl_namemap_name2num(namemap, name); | |
374 | ossl_method_store_cache_set(store, id, properties, method, | |
375 | up_ref_encoder, free_encoder); | |
376 | } | |
d6d42cda RL |
377 | |
378 | /* | |
379 | * If we never were in the constructor, the algorithm to be fetched | |
380 | * is unsupported. | |
381 | */ | |
e3a2ba75 | 382 | unsupported = !mcmdata.flag_construct_error_occurred; |
d6d42cda RL |
383 | } |
384 | ||
385 | if (method == NULL) { | |
386 | int code = unsupported ? ERR_R_UNSUPPORTED : ERR_R_FETCH_FAILED; | |
387 | ||
388 | if (name == NULL) | |
389 | name = ossl_namemap_num2name(namemap, id, 0); | |
390 | ERR_raise_data(ERR_LIB_OSSL_ENCODER, code, | |
391 | "%s, Name (%s : %d), Properties (%s)", | |
392 | ossl_lib_ctx_get_descriptor(libctx), | |
393 | name = NULL ? "<null>" : name, id, | |
394 | properties == NULL ? "<null>" : properties); | |
ece9304c RL |
395 | } |
396 | ||
397 | return method; | |
398 | } | |
399 | ||
b4250010 | 400 | OSSL_ENCODER *OSSL_ENCODER_fetch(OSSL_LIB_CTX *libctx, const char *name, |
ece9304c RL |
401 | const char *properties) |
402 | { | |
403 | return inner_ossl_encoder_fetch(libctx, 0, name, properties); | |
404 | } | |
405 | ||
b4250010 | 406 | OSSL_ENCODER *ossl_encoder_fetch_by_number(OSSL_LIB_CTX *libctx, int id, |
ece9304c RL |
407 | const char *properties) |
408 | { | |
409 | return inner_ossl_encoder_fetch(libctx, id, NULL, properties); | |
410 | } | |
411 | ||
412 | /* | |
413 | * Library of basic method functions | |
414 | */ | |
415 | ||
ed576acd | 416 | const OSSL_PROVIDER *OSSL_ENCODER_get0_provider(const OSSL_ENCODER *encoder) |
ece9304c RL |
417 | { |
418 | if (!ossl_assert(encoder != NULL)) { | |
419 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_PASSED_NULL_PARAMETER); | |
420 | return 0; | |
421 | } | |
422 | ||
423 | return encoder->base.prov; | |
424 | } | |
425 | ||
ed576acd | 426 | const char *OSSL_ENCODER_get0_properties(const OSSL_ENCODER *encoder) |
ece9304c RL |
427 | { |
428 | if (!ossl_assert(encoder != NULL)) { | |
429 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_PASSED_NULL_PARAMETER); | |
430 | return 0; | |
431 | } | |
432 | ||
433 | return encoder->base.propdef; | |
434 | } | |
435 | ||
ed576acd | 436 | int OSSL_ENCODER_get_number(const OSSL_ENCODER *encoder) |
ece9304c RL |
437 | { |
438 | if (!ossl_assert(encoder != NULL)) { | |
439 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_PASSED_NULL_PARAMETER); | |
440 | return 0; | |
441 | } | |
442 | ||
443 | return encoder->base.id; | |
444 | } | |
445 | ||
ed576acd | 446 | const char *OSSL_ENCODER_get0_name(const OSSL_ENCODER *encoder) |
49664117 P |
447 | { |
448 | return encoder->base.name; | |
449 | } | |
450 | ||
ed576acd | 451 | const char *OSSL_ENCODER_get0_description(const OSSL_ENCODER *encoder) |
1010884e RL |
452 | { |
453 | return encoder->base.description; | |
454 | } | |
455 | ||
ece9304c RL |
456 | int OSSL_ENCODER_is_a(const OSSL_ENCODER *encoder, const char *name) |
457 | { | |
458 | if (encoder->base.prov != NULL) { | |
a829b735 | 459 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(encoder->base.prov); |
ece9304c RL |
460 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); |
461 | ||
462 | return ossl_namemap_name2num(namemap, name) == encoder->base.id; | |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
467 | struct encoder_do_all_data_st { | |
468 | void (*user_fn)(void *method, void *arg); | |
469 | void *user_arg; | |
470 | }; | |
471 | ||
472 | static void encoder_do_one(OSSL_PROVIDER *provider, | |
473 | const OSSL_ALGORITHM *algodef, | |
474 | int no_store, void *vdata) | |
475 | { | |
476 | struct encoder_do_all_data_st *data = vdata; | |
a829b735 | 477 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(provider); |
ece9304c RL |
478 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); |
479 | const char *names = algodef->algorithm_names; | |
480 | int id = ossl_namemap_add_names(namemap, 0, names, NAME_SEPARATOR); | |
481 | void *method = NULL; | |
482 | ||
483 | if (id != 0) | |
484 | method = | |
309a78aa | 485 | encoder_from_algorithm(id, algodef, provider); |
ece9304c RL |
486 | |
487 | if (method != NULL) { | |
488 | data->user_fn(method, data->user_arg); | |
489 | OSSL_ENCODER_free(method); | |
490 | } | |
491 | } | |
492 | ||
b4250010 | 493 | void OSSL_ENCODER_do_all_provided(OSSL_LIB_CTX *libctx, |
ece9304c RL |
494 | void (*fn)(OSSL_ENCODER *encoder, void *arg), |
495 | void *arg) | |
496 | { | |
497 | struct encoder_do_all_data_st data; | |
498 | ||
499 | data.user_fn = (void (*)(void *, void *))fn; | |
500 | data.user_arg = arg; | |
501 | ||
502 | /* | |
503 | * No pre- or post-condition for this call, as this only creates methods | |
504 | * temporarly and then promptly destroys them. | |
505 | */ | |
506 | ossl_algorithm_do_all(libctx, OSSL_OP_ENCODER, NULL, NULL, | |
507 | encoder_do_one, NULL, &data); | |
508 | } | |
509 | ||
d84f5515 MC |
510 | int OSSL_ENCODER_names_do_all(const OSSL_ENCODER *encoder, |
511 | void (*fn)(const char *name, void *data), | |
512 | void *data) | |
ece9304c RL |
513 | { |
514 | if (encoder == NULL) | |
d84f5515 | 515 | return 0; |
ece9304c RL |
516 | |
517 | if (encoder->base.prov != NULL) { | |
a829b735 | 518 | OSSL_LIB_CTX *libctx = ossl_provider_libctx(encoder->base.prov); |
ece9304c RL |
519 | OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); |
520 | ||
d84f5515 | 521 | return ossl_namemap_doall_names(namemap, encoder->base.id, fn, data); |
ece9304c | 522 | } |
d84f5515 MC |
523 | |
524 | return 1; | |
ece9304c RL |
525 | } |
526 | ||
b8975c68 RL |
527 | const OSSL_PARAM * |
528 | OSSL_ENCODER_gettable_params(OSSL_ENCODER *encoder) | |
529 | { | |
530 | if (encoder != NULL && encoder->gettable_params != NULL) { | |
ed576acd | 531 | void *provctx = ossl_provider_ctx(OSSL_ENCODER_get0_provider(encoder)); |
b8975c68 RL |
532 | |
533 | return encoder->gettable_params(provctx); | |
534 | } | |
535 | return NULL; | |
536 | } | |
537 | ||
538 | int OSSL_ENCODER_get_params(OSSL_ENCODER *encoder, OSSL_PARAM params[]) | |
539 | { | |
540 | if (encoder != NULL && encoder->get_params != NULL) | |
541 | return encoder->get_params(params); | |
542 | return 0; | |
543 | } | |
544 | ||
ece9304c RL |
545 | const OSSL_PARAM *OSSL_ENCODER_settable_ctx_params(OSSL_ENCODER *encoder) |
546 | { | |
547 | if (encoder != NULL && encoder->settable_ctx_params != NULL) { | |
ed576acd | 548 | void *provctx = ossl_provider_ctx(OSSL_ENCODER_get0_provider(encoder)); |
ece9304c RL |
549 | |
550 | return encoder->settable_ctx_params(provctx); | |
551 | } | |
552 | return NULL; | |
553 | } | |
554 | ||
555 | /* | |
556 | * Encoder context support | |
557 | */ | |
558 | ||
b8975c68 | 559 | OSSL_ENCODER_CTX *OSSL_ENCODER_CTX_new(void) |
ece9304c RL |
560 | { |
561 | OSSL_ENCODER_CTX *ctx; | |
562 | ||
b8975c68 | 563 | if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) |
ece9304c | 564 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_MALLOC_FAILURE); |
ece9304c RL |
565 | |
566 | return ctx; | |
567 | } | |
568 | ||
b8975c68 RL |
569 | int OSSL_ENCODER_CTX_set_params(OSSL_ENCODER_CTX *ctx, |
570 | const OSSL_PARAM params[]) | |
ece9304c | 571 | { |
9096809b | 572 | int ok = 1; |
b8975c68 RL |
573 | size_t i; |
574 | size_t l; | |
575 | ||
ece9304c RL |
576 | if (!ossl_assert(ctx != NULL)) { |
577 | ERR_raise(ERR_LIB_OSSL_ENCODER, ERR_R_PASSED_NULL_PARAMETER); | |
578 | return 0; | |
579 | } | |
580 | ||
b8975c68 RL |
581 | if (ctx->encoder_insts == NULL) |
582 | return 1; | |
ece9304c | 583 | |
b8975c68 RL |
584 | l = OSSL_ENCODER_CTX_get_num_encoders(ctx); |
585 | for (i = 0; i < l; i++) { | |
586 | OSSL_ENCODER_INSTANCE *encoder_inst = | |
587 | sk_OSSL_ENCODER_INSTANCE_value(ctx->encoder_insts, i); | |
588 | OSSL_ENCODER *encoder = OSSL_ENCODER_INSTANCE_get_encoder(encoder_inst); | |
589 | void *encoderctx = OSSL_ENCODER_INSTANCE_get_encoder_ctx(encoder_inst); | |
ece9304c | 590 | |
b8975c68 RL |
591 | if (encoderctx == NULL || encoder->set_ctx_params == NULL) |
592 | continue; | |
593 | if (!encoder->set_ctx_params(encoderctx, params)) | |
9096809b | 594 | ok = 0; |
ece9304c | 595 | } |
9096809b | 596 | return ok; |
ece9304c RL |
597 | } |
598 | ||
599 | void OSSL_ENCODER_CTX_free(OSSL_ENCODER_CTX *ctx) | |
600 | { | |
601 | if (ctx != NULL) { | |
b8975c68 RL |
602 | sk_OSSL_ENCODER_INSTANCE_pop_free(ctx->encoder_insts, |
603 | ossl_encoder_instance_free); | |
604 | OPENSSL_free(ctx->construct_data); | |
a517edec | 605 | ossl_pw_clear_passphrase_data(&ctx->pwdata); |
ece9304c RL |
606 | OPENSSL_free(ctx); |
607 | } | |
608 | } |