1251876Speter/* Licensed to the Apache Software Foundation (ASF) under one or more 2251876Speter * contributor license agreements. See the NOTICE file distributed with 3251876Speter * this work for additional information regarding copyright ownership. 4251876Speter * The ASF licenses this file to You under the Apache License, Version 2.0 5251876Speter * (the "License"); you may not use this file except in compliance with 6251876Speter * the License. You may obtain a copy of the License at 7251876Speter * 8251876Speter * http://www.apache.org/licenses/LICENSE-2.0 9251876Speter * 10251876Speter * Unless required by applicable law or agreed to in writing, software 11251876Speter * distributed under the License is distributed on an "AS IS" BASIS, 12251876Speter * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13251876Speter * See the License for the specific language governing permissions and 14251876Speter * limitations under the License. 15251876Speter */ 16251876Speter 17251876Speter#include <ctype.h> 18251876Speter#include <stdio.h> 19251876Speter 20251876Speter#include "apu_config.h" 21251876Speter#include "apu.h" 22251876Speter#include "apr_pools.h" 23251876Speter#include "apr_dso.h" 24251876Speter#include "apr_strings.h" 25251876Speter#include "apr_hash.h" 26251876Speter#include "apr_thread_mutex.h" 27251876Speter#include "apr_lib.h" 28251876Speter 29251876Speter#if APU_HAVE_CRYPTO 30251876Speter 31251876Speter#include "apu_internal.h" 32251876Speter#include "apr_crypto_internal.h" 33251876Speter#include "apr_crypto.h" 34251876Speter#include "apu_version.h" 35251876Speter 36251876Speterstatic apr_hash_t *drivers = NULL; 37251876Speter 38251876Speter#define ERROR_SIZE 1024 39251876Speter 40251876Speter#define CLEANUP_CAST (apr_status_t (*)(void*)) 41251876Speter 42251876Speter#define APR_TYPEDEF_STRUCT(type, incompletion) \ 43251876Speterstruct type { \ 44251876Speter incompletion \ 45251876Speter void *unk[]; \ 46251876Speter}; 47251876Speter 48251876SpeterAPR_TYPEDEF_STRUCT(apr_crypto_t, 49251876Speter apr_pool_t *pool; 50251876Speter apr_crypto_driver_t *provider; 51251876Speter) 52251876Speter 53251876SpeterAPR_TYPEDEF_STRUCT(apr_crypto_key_t, 54251876Speter apr_pool_t *pool; 55251876Speter apr_crypto_driver_t *provider; 56251876Speter const apr_crypto_t *f; 57251876Speter) 58251876Speter 59251876SpeterAPR_TYPEDEF_STRUCT(apr_crypto_block_t, 60251876Speter apr_pool_t *pool; 61251876Speter apr_crypto_driver_t *provider; 62251876Speter const apr_crypto_t *f; 63251876Speter) 64251876Speter 65251876Spetertypedef struct apr_crypto_clear_t { 66251876Speter void *buffer; 67251876Speter apr_size_t size; 68251876Speter} apr_crypto_clear_t; 69251876Speter 70251876Speter#if !APU_DSO_BUILD 71253734Speter#define DRIVER_LOAD(name,driver_name,pool,params,rv,result) \ 72251876Speter { \ 73253734Speter extern const apr_crypto_driver_t driver_name; \ 74253734Speter apr_hash_set(drivers,name,APR_HASH_KEY_STRING,&driver_name); \ 75253734Speter if (driver_name.init) { \ 76253734Speter rv = driver_name.init(pool, params, result); \ 77251876Speter } \ 78253734Speter *driver = &driver_name; \ 79251876Speter } 80251876Speter#endif 81251876Speter 82251876Speterstatic apr_status_t apr_crypto_term(void *ptr) 83251876Speter{ 84251876Speter /* set drivers to NULL so init can work again */ 85251876Speter drivers = NULL; 86251876Speter 87251876Speter /* Everything else we need is handled by cleanups registered 88251876Speter * when we created mutexes and loaded DSOs 89251876Speter */ 90251876Speter return APR_SUCCESS; 91251876Speter} 92251876Speter 93251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_init(apr_pool_t *pool) 94251876Speter{ 95251876Speter apr_status_t ret = APR_SUCCESS; 96251876Speter apr_pool_t *parent; 97251876Speter 98251876Speter if (drivers != NULL) { 99251876Speter return APR_SUCCESS; 100251876Speter } 101251876Speter 102251876Speter /* Top level pool scope, need process-scope lifetime */ 103251876Speter for (parent = pool; parent; parent = apr_pool_parent_get(pool)) 104251876Speter pool = parent; 105251876Speter#if APU_DSO_BUILD 106251876Speter /* deprecate in 2.0 - permit implicit initialization */ 107251876Speter apu_dso_init(pool); 108251876Speter#endif 109251876Speter drivers = apr_hash_make(pool); 110251876Speter 111251876Speter apr_pool_cleanup_register(pool, NULL, apr_crypto_term, 112251876Speter apr_pool_cleanup_null); 113251876Speter 114251876Speter return ret; 115251876Speter} 116251876Speter 117251876Speterstatic apr_status_t crypto_clear(void *ptr) 118251876Speter{ 119251876Speter apr_crypto_clear_t *clear = (apr_crypto_clear_t *)ptr; 120251876Speter 121251876Speter memset(clear->buffer, 0, clear->size); 122251876Speter clear->buffer = NULL; 123251876Speter clear->size = 0; 124251876Speter 125251876Speter return APR_SUCCESS; 126251876Speter} 127251876Speter 128251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_clear(apr_pool_t *pool, 129251876Speter void *buffer, apr_size_t size) 130251876Speter{ 131251876Speter apr_crypto_clear_t *clear = apr_palloc(pool, sizeof(apr_crypto_clear_t)); 132251876Speter 133251876Speter clear->buffer = buffer; 134251876Speter clear->size = size; 135251876Speter 136251876Speter apr_pool_cleanup_register(pool, clear, crypto_clear, 137251876Speter apr_pool_cleanup_null); 138251876Speter 139251876Speter return APR_SUCCESS; 140251876Speter} 141251876Speter 142251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_get_driver( 143251876Speter const apr_crypto_driver_t **driver, const char *name, 144251876Speter const char *params, const apu_err_t **result, apr_pool_t *pool) 145251876Speter{ 146251876Speter#if APU_DSO_BUILD 147251876Speter char modname[32]; 148251876Speter char symname[34]; 149251876Speter apr_dso_handle_t *dso; 150251876Speter apr_dso_handle_sym_t symbol; 151251876Speter#endif 152251876Speter apr_status_t rv; 153251876Speter 154253734Speter if (result) { 155253734Speter *result = NULL; /* until further notice */ 156253734Speter } 157253734Speter 158251876Speter#if APU_DSO_BUILD 159251876Speter rv = apu_dso_mutex_lock(); 160251876Speter if (rv) { 161251876Speter return rv; 162251876Speter } 163251876Speter#endif 164251876Speter *driver = apr_hash_get(drivers, name, APR_HASH_KEY_STRING); 165251876Speter if (*driver) { 166251876Speter#if APU_DSO_BUILD 167251876Speter apu_dso_mutex_unlock(); 168251876Speter#endif 169251876Speter return APR_SUCCESS; 170251876Speter } 171251876Speter 172251876Speter#if APU_DSO_BUILD 173251876Speter /* The driver DSO must have exactly the same lifetime as the 174251876Speter * drivers hash table; ignore the passed-in pool */ 175251876Speter pool = apr_hash_pool_get(drivers); 176251876Speter 177251876Speter#if defined(NETWARE) 178251876Speter apr_snprintf(modname, sizeof(modname), "crypto%s.nlm", name); 179251876Speter#elif defined(WIN32) 180251876Speter apr_snprintf(modname, sizeof(modname), 181251876Speter "apr_crypto_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".dll", name); 182251876Speter#else 183251876Speter apr_snprintf(modname, sizeof(modname), 184251876Speter "apr_crypto_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".so", name); 185251876Speter#endif 186251876Speter apr_snprintf(symname, sizeof(symname), "apr_crypto_%s_driver", name); 187251876Speter rv = apu_dso_load(&dso, &symbol, modname, symname, pool); 188253734Speter if (rv == APR_SUCCESS || rv == APR_EINIT) { /* previously loaded?!? */ 189253734Speter *driver = symbol; 190253734Speter name = apr_pstrdup(pool, name); 191253734Speter apr_hash_set(drivers, name, APR_HASH_KEY_STRING, *driver); 192253734Speter rv = APR_SUCCESS; 193253734Speter if ((*driver)->init) { 194253734Speter rv = (*driver)->init(pool, params, result); 195251876Speter } 196251876Speter } 197253734Speter apu_dso_mutex_unlock(); 198251876Speter 199253734Speter if (APR_SUCCESS != rv && result && !*result) { 200251876Speter char *buffer = apr_pcalloc(pool, ERROR_SIZE); 201251876Speter apu_err_t *err = apr_pcalloc(pool, sizeof(apu_err_t)); 202251876Speter if (err && buffer) { 203251876Speter apr_dso_error(dso, buffer, ERROR_SIZE - 1); 204251876Speter err->msg = buffer; 205251876Speter err->reason = modname; 206251876Speter *result = err; 207251876Speter } 208251876Speter } 209251876Speter 210251876Speter#else /* not builtin and !APR_HAS_DSO => not implemented */ 211251876Speter rv = APR_ENOTIMPL; 212253734Speter 213253734Speter /* Load statically-linked drivers: */ 214253734Speter#if APU_HAVE_OPENSSL 215253734Speter if (name[0] == 'o' && !strcmp(name, "openssl")) { 216253734Speter DRIVER_LOAD("openssl", apr_crypto_openssl_driver, pool, params, rv, result); 217253734Speter } 218251876Speter#endif 219253734Speter#if APU_HAVE_NSS 220253734Speter if (name[0] == 'n' && !strcmp(name, "nss")) { 221253734Speter DRIVER_LOAD("nss", apr_crypto_nss_driver, pool, params, rv, result); 222253734Speter } 223253734Speter#endif 224253734Speter#if APU_HAVE_MSCAPI 225253734Speter if (name[0] == 'm' && !strcmp(name, "mscapi")) { 226253734Speter DRIVER_LOAD("mscapi", apr_crypto_mscapi_driver, pool, params, rv, result); 227253734Speter } 228253734Speter#endif 229253734Speter#if APU_HAVE_MSCNG 230253734Speter if (name[0] == 'm' && !strcmp(name, "mscng")) { 231253734Speter DRIVER_LOAD("mscng", apr_crypto_mscng_driver, pool, params, rv, result); 232253734Speter } 233253734Speter#endif 234251876Speter 235253734Speter#endif 236253734Speter 237251876Speter return rv; 238251876Speter} 239251876Speter 240251876Speter/** 241251876Speter * @brief Return the name of the driver. 242251876Speter * 243251876Speter * @param driver - The driver in use. 244251876Speter * @return The name of the driver. 245251876Speter */ 246251876SpeterAPU_DECLARE(const char *)apr_crypto_driver_name ( 247251876Speter const apr_crypto_driver_t *driver) 248251876Speter{ 249251876Speter return driver->name; 250251876Speter} 251251876Speter 252251876Speter/** 253251876Speter * @brief Get the result of the last operation on a context. If the result 254251876Speter * is NULL, the operation was successful. 255251876Speter * @param result - the result structure 256251876Speter * @param f - context pointer 257251876Speter * @return APR_SUCCESS for success 258251876Speter */ 259251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_error(const apu_err_t **result, 260251876Speter const apr_crypto_t *f) 261251876Speter{ 262251876Speter return f->provider->error(result, f); 263251876Speter} 264251876Speter 265251876Speter/** 266251876Speter * @brief Create a context for supporting encryption. Keys, certificates, 267251876Speter * algorithms and other parameters will be set per context. More than 268251876Speter * one context can be created at one time. A cleanup will be automatically 269251876Speter * registered with the given pool to guarantee a graceful shutdown. 270251876Speter * @param f - context pointer will be written here 271251876Speter * @param driver - driver to use 272251876Speter * @param params - array of key parameters 273251876Speter * @param pool - process pool 274251876Speter * @return APR_ENOENGINE when the engine specified does not exist. APR_EINITENGINE 275251876Speter * if the engine cannot be initialised. 276251876Speter * @remarks NSS: currently no params are supported. 277251876Speter * @remarks OpenSSL: the params can have "engine" as a key, followed by an equal 278251876Speter * sign and a value. 279251876Speter */ 280251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_make(apr_crypto_t **f, 281251876Speter const apr_crypto_driver_t *driver, const char *params, apr_pool_t *pool) 282251876Speter{ 283251876Speter return driver->make(f, driver, params, pool); 284251876Speter} 285251876Speter 286251876Speter/** 287251876Speter * @brief Get a hash table of key types, keyed by the name of the type against 288251876Speter * an integer pointer constant. 289251876Speter * 290251876Speter * @param types - hashtable of key types keyed to constants. 291251876Speter * @param f - encryption context 292251876Speter * @return APR_SUCCESS for success 293251876Speter */ 294251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_get_block_key_types(apr_hash_t **types, 295251876Speter const apr_crypto_t *f) 296251876Speter{ 297251876Speter return f->provider->get_block_key_types(types, f); 298251876Speter} 299251876Speter 300251876Speter/** 301251876Speter * @brief Get a hash table of key modes, keyed by the name of the mode against 302251876Speter * an integer pointer constant. 303251876Speter * 304251876Speter * @param modes - hashtable of key modes keyed to constants. 305251876Speter * @param f - encryption context 306251876Speter * @return APR_SUCCESS for success 307251876Speter */ 308251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_get_block_key_modes(apr_hash_t **modes, 309251876Speter const apr_crypto_t *f) 310251876Speter{ 311251876Speter return f->provider->get_block_key_modes(modes, f); 312251876Speter} 313251876Speter 314251876Speter/** 315251876Speter * @brief Create a key from the given passphrase. By default, the PBKDF2 316251876Speter * algorithm is used to generate the key from the passphrase. It is expected 317251876Speter * that the same pass phrase will generate the same key, regardless of the 318251876Speter * backend crypto platform used. The key is cleaned up when the context 319251876Speter * is cleaned, and may be reused with multiple encryption or decryption 320251876Speter * operations. 321251876Speter * @note If *key is NULL, a apr_crypto_key_t will be created from a pool. If 322251876Speter * *key is not NULL, *key must point at a previously created structure. 323251876Speter * @param key The key returned, see note. 324251876Speter * @param ivSize The size of the initialisation vector will be returned, based 325251876Speter * on whether an IV is relevant for this type of crypto. 326251876Speter * @param pass The passphrase to use. 327251876Speter * @param passLen The passphrase length in bytes 328251876Speter * @param salt The salt to use. 329251876Speter * @param saltLen The salt length in bytes 330251876Speter * @param type 3DES_192, AES_128, AES_192, AES_256. 331251876Speter * @param mode Electronic Code Book / Cipher Block Chaining. 332251876Speter * @param doPad Pad if necessary. 333251876Speter * @param iterations Number of iterations to use in algorithm 334251876Speter * @param f The context to use. 335251876Speter * @param p The pool to use. 336251876Speter * @return Returns APR_ENOKEY if the pass phrase is missing or empty, or if a backend 337251876Speter * error occurred while generating the key. APR_ENOCIPHER if the type or mode 338251876Speter * is not supported by the particular backend. APR_EKEYTYPE if the key type is 339251876Speter * not known. APR_EPADDING if padding was requested but is not supported. 340251876Speter * APR_ENOTIMPL if not implemented. 341251876Speter */ 342251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_passphrase(apr_crypto_key_t **key, 343251876Speter apr_size_t *ivSize, const char *pass, apr_size_t passLen, 344251876Speter const unsigned char * salt, apr_size_t saltLen, 345251876Speter const apr_crypto_block_key_type_e type, 346251876Speter const apr_crypto_block_key_mode_e mode, const int doPad, 347251876Speter const int iterations, const apr_crypto_t *f, apr_pool_t *p) 348251876Speter{ 349251876Speter return f->provider->passphrase(key, ivSize, pass, passLen, salt, saltLen, 350251876Speter type, mode, doPad, iterations, f, p); 351251876Speter} 352251876Speter 353251876Speter/** 354251876Speter * @brief Initialise a context for encrypting arbitrary data using the given key. 355251876Speter * @note If *ctx is NULL, a apr_crypto_block_t will be created from a pool. If 356251876Speter * *ctx is not NULL, *ctx must point at a previously created structure. 357251876Speter * @param ctx The block context returned, see note. 358251876Speter * @param iv Optional initialisation vector. If the buffer pointed to is NULL, 359251876Speter * an IV will be created at random, in space allocated from the pool. 360251876Speter * If the buffer pointed to is not NULL, the IV in the buffer will be 361251876Speter * used. 362251876Speter * @param key The key structure to use. 363251876Speter * @param blockSize The block size of the cipher. 364251876Speter * @param p The pool to use. 365251876Speter * @return Returns APR_ENOIV if an initialisation vector is required but not specified. 366251876Speter * Returns APR_EINIT if the backend failed to initialise the context. Returns 367251876Speter * APR_ENOTIMPL if not implemented. 368251876Speter */ 369251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_encrypt_init( 370251876Speter apr_crypto_block_t **ctx, const unsigned char **iv, 371251876Speter const apr_crypto_key_t *key, apr_size_t *blockSize, apr_pool_t *p) 372251876Speter{ 373251876Speter return key->provider->block_encrypt_init(ctx, iv, key, blockSize, p); 374251876Speter} 375251876Speter 376251876Speter/** 377251876Speter * @brief Encrypt data provided by in, write it to out. 378251876Speter * @note The number of bytes written will be written to outlen. If 379251876Speter * out is NULL, outlen will contain the maximum size of the 380251876Speter * buffer needed to hold the data, including any data 381251876Speter * generated by apr_crypto_block_encrypt_finish below. If *out points 382251876Speter * to NULL, a buffer sufficiently large will be created from 383251876Speter * the pool provided. If *out points to a not-NULL value, this 384251876Speter * value will be used as a buffer instead. 385251876Speter * @param out Address of a buffer to which data will be written, 386251876Speter * see note. 387251876Speter * @param outlen Length of the output will be written here. 388251876Speter * @param in Address of the buffer to read. 389251876Speter * @param inlen Length of the buffer to read. 390251876Speter * @param ctx The block context to use. 391251876Speter * @return APR_ECRYPT if an error occurred. Returns APR_ENOTIMPL if 392251876Speter * not implemented. 393251876Speter */ 394251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_encrypt(unsigned char **out, 395251876Speter apr_size_t *outlen, const unsigned char *in, apr_size_t inlen, 396251876Speter apr_crypto_block_t *ctx) 397251876Speter{ 398251876Speter return ctx->provider->block_encrypt(out, outlen, in, inlen, ctx); 399251876Speter} 400251876Speter 401251876Speter/** 402251876Speter * @brief Encrypt final data block, write it to out. 403251876Speter * @note If necessary the final block will be written out after being 404251876Speter * padded. Typically the final block will be written to the 405251876Speter * same buffer used by apr_crypto_block_encrypt, offset by the 406251876Speter * number of bytes returned as actually written by the 407251876Speter * apr_crypto_block_encrypt() call. After this call, the context 408251876Speter * is cleaned and can be reused by apr_crypto_block_encrypt_init(). 409251876Speter * @param out Address of a buffer to which data will be written. This 410251876Speter * buffer must already exist, and is usually the same 411251876Speter * buffer used by apr_evp_crypt(). See note. 412251876Speter * @param outlen Length of the output will be written here. 413251876Speter * @param ctx The block context to use. 414251876Speter * @return APR_ECRYPT if an error occurred. 415251876Speter * @return APR_EPADDING if padding was enabled and the block was incorrectly 416251876Speter * formatted. 417251876Speter * @return APR_ENOTIMPL if not implemented. 418251876Speter */ 419251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_encrypt_finish(unsigned char *out, 420251876Speter apr_size_t *outlen, apr_crypto_block_t *ctx) 421251876Speter{ 422251876Speter return ctx->provider->block_encrypt_finish(out, outlen, ctx); 423251876Speter} 424251876Speter 425251876Speter/** 426251876Speter * @brief Initialise a context for decrypting arbitrary data using the given key. 427251876Speter * @note If *ctx is NULL, a apr_crypto_block_t will be created from a pool. If 428251876Speter * *ctx is not NULL, *ctx must point at a previously created structure. 429251876Speter * @param ctx The block context returned, see note. 430251876Speter * @param blockSize The block size of the cipher. 431251876Speter * @param iv Optional initialisation vector. 432251876Speter * @param key The key structure to use. 433251876Speter * @param p The pool to use. 434251876Speter * @return Returns APR_ENOIV if an initialisation vector is required but not specified. 435251876Speter * Returns APR_EINIT if the backend failed to initialise the context. Returns 436251876Speter * APR_ENOTIMPL if not implemented. 437251876Speter */ 438251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_decrypt_init( 439251876Speter apr_crypto_block_t **ctx, apr_size_t *blockSize, 440251876Speter const unsigned char *iv, const apr_crypto_key_t *key, apr_pool_t *p) 441251876Speter{ 442251876Speter return key->provider->block_decrypt_init(ctx, blockSize, iv, key, p); 443251876Speter} 444251876Speter 445251876Speter/** 446251876Speter * @brief Decrypt data provided by in, write it to out. 447251876Speter * @note The number of bytes written will be written to outlen. If 448251876Speter * out is NULL, outlen will contain the maximum size of the 449251876Speter * buffer needed to hold the data, including any data 450251876Speter * generated by apr_crypto_block_decrypt_finish below. If *out points 451251876Speter * to NULL, a buffer sufficiently large will be created from 452251876Speter * the pool provided. If *out points to a not-NULL value, this 453251876Speter * value will be used as a buffer instead. 454251876Speter * @param out Address of a buffer to which data will be written, 455251876Speter * see note. 456251876Speter * @param outlen Length of the output will be written here. 457251876Speter * @param in Address of the buffer to read. 458251876Speter * @param inlen Length of the buffer to read. 459251876Speter * @param ctx The block context to use. 460251876Speter * @return APR_ECRYPT if an error occurred. Returns APR_ENOTIMPL if 461251876Speter * not implemented. 462251876Speter */ 463251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_decrypt(unsigned char **out, 464251876Speter apr_size_t *outlen, const unsigned char *in, apr_size_t inlen, 465251876Speter apr_crypto_block_t *ctx) 466251876Speter{ 467251876Speter return ctx->provider->block_decrypt(out, outlen, in, inlen, ctx); 468251876Speter} 469251876Speter 470251876Speter/** 471251876Speter * @brief Decrypt final data block, write it to out. 472251876Speter * @note If necessary the final block will be written out after being 473251876Speter * padded. Typically the final block will be written to the 474251876Speter * same buffer used by apr_crypto_block_decrypt, offset by the 475251876Speter * number of bytes returned as actually written by the 476251876Speter * apr_crypto_block_decrypt() call. After this call, the context 477251876Speter * is cleaned and can be reused by apr_crypto_block_decrypt_init(). 478251876Speter * @param out Address of a buffer to which data will be written. This 479251876Speter * buffer must already exist, and is usually the same 480251876Speter * buffer used by apr_evp_crypt(). See note. 481251876Speter * @param outlen Length of the output will be written here. 482251876Speter * @param ctx The block context to use. 483251876Speter * @return APR_ECRYPT if an error occurred. 484251876Speter * @return APR_EPADDING if padding was enabled and the block was incorrectly 485251876Speter * formatted. 486251876Speter * @return APR_ENOTIMPL if not implemented. 487251876Speter */ 488251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_decrypt_finish(unsigned char *out, 489251876Speter apr_size_t *outlen, apr_crypto_block_t *ctx) 490251876Speter{ 491251876Speter return ctx->provider->block_decrypt_finish(out, outlen, ctx); 492251876Speter} 493251876Speter 494251876Speter/** 495251876Speter * @brief Clean encryption / decryption context. 496251876Speter * @note After cleanup, a context is free to be reused if necessary. 497251876Speter * @param ctx The block context to use. 498251876Speter * @return Returns APR_ENOTIMPL if not supported. 499251876Speter */ 500251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_block_cleanup(apr_crypto_block_t *ctx) 501251876Speter{ 502251876Speter return ctx->provider->block_cleanup(ctx); 503251876Speter} 504251876Speter 505251876Speter/** 506251876Speter * @brief Clean encryption / decryption context. 507251876Speter * @note After cleanup, a context is free to be reused if necessary. 508251876Speter * @param f The context to use. 509251876Speter * @return Returns APR_ENOTIMPL if not supported. 510251876Speter */ 511251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_cleanup(apr_crypto_t *f) 512251876Speter{ 513251876Speter return f->provider->cleanup(f); 514251876Speter} 515251876Speter 516251876Speter/** 517251876Speter * @brief Shutdown the crypto library. 518251876Speter * @note After shutdown, it is expected that the init function can be called again. 519251876Speter * @param driver - driver to use 520251876Speter * @return Returns APR_ENOTIMPL if not supported. 521251876Speter */ 522251876SpeterAPU_DECLARE(apr_status_t) apr_crypto_shutdown(const apr_crypto_driver_t *driver) 523251876Speter{ 524251876Speter return driver->shutdown(); 525251876Speter} 526251876Speter 527251876Speter#endif /* APU_HAVE_CRYPTO */ 528