1/* 2 * Symmetric key ciphers. 3 * 4 * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the Free 8 * Software Foundation; either version 2 of the License, or (at your option) 9 * any later version. 10 * 11 */ 12 13#ifndef _CRYPTO_INTERNAL_SKCIPHER_H 14#define _CRYPTO_INTERNAL_SKCIPHER_H 15 16#include <crypto/algapi.h> 17#include <crypto/skcipher.h> 18#include <linux/types.h> 19 20struct rtattr; 21 22struct crypto_skcipher_spawn { 23 struct crypto_spawn base; 24}; 25 26extern const struct crypto_type crypto_givcipher_type; 27 28static inline void crypto_set_skcipher_spawn( 29 struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst) 30{ 31 crypto_set_spawn(&spawn->base, inst); 32} 33 34int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name, 35 u32 type, u32 mask); 36 37struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask); 38 39static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn) 40{ 41 crypto_drop_spawn(&spawn->base); 42} 43 44static inline struct crypto_alg *crypto_skcipher_spawn_alg( 45 struct crypto_skcipher_spawn *spawn) 46{ 47 return spawn->base.alg; 48} 49 50static inline struct crypto_ablkcipher *crypto_spawn_skcipher( 51 struct crypto_skcipher_spawn *spawn) 52{ 53 return __crypto_ablkcipher_cast( 54 crypto_spawn_tfm(&spawn->base, crypto_skcipher_type(0), 55 crypto_skcipher_mask(0))); 56} 57 58int skcipher_null_givencrypt(struct skcipher_givcrypt_request *req); 59int skcipher_null_givdecrypt(struct skcipher_givcrypt_request *req); 60const char *crypto_default_geniv(const struct crypto_alg *alg); 61 62struct crypto_instance *skcipher_geniv_alloc(struct crypto_template *tmpl, 63 struct rtattr **tb, u32 type, 64 u32 mask); 65void skcipher_geniv_free(struct crypto_instance *inst); 66int skcipher_geniv_init(struct crypto_tfm *tfm); 67void skcipher_geniv_exit(struct crypto_tfm *tfm); 68 69static inline struct crypto_ablkcipher *skcipher_geniv_cipher( 70 struct crypto_ablkcipher *geniv) 71{ 72 return crypto_ablkcipher_crt(geniv)->base; 73} 74 75static inline int skcipher_enqueue_givcrypt( 76 struct crypto_queue *queue, struct skcipher_givcrypt_request *request) 77{ 78 return ablkcipher_enqueue_request(queue, &request->creq); 79} 80 81static inline struct skcipher_givcrypt_request *skcipher_dequeue_givcrypt( 82 struct crypto_queue *queue) 83{ 84 return skcipher_givcrypt_cast(crypto_dequeue_request(queue)); 85} 86 87static inline void *skcipher_givcrypt_reqctx( 88 struct skcipher_givcrypt_request *req) 89{ 90 return ablkcipher_request_ctx(&req->creq); 91} 92 93static inline void ablkcipher_request_complete(struct ablkcipher_request *req, 94 int err) 95{ 96 req->base.complete(&req->base, err); 97} 98 99static inline void skcipher_givcrypt_complete( 100 struct skcipher_givcrypt_request *req, int err) 101{ 102 ablkcipher_request_complete(&req->creq, err); 103} 104 105static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req) 106{ 107 return req->base.flags; 108} 109 110#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */ 111 112