1 /* 2 * AEAD: Authenticated Encryption with Associated Data 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_AEAD_H 14 #define _CRYPTO_INTERNAL_AEAD_H 15 16 #include <crypto/aead.h> 17 #include <crypto/algapi.h> 18 #include <linux/types.h> 19 20 struct rtattr; 21 22 struct crypto_aead_spawn { 23 struct crypto_spawn base; 24 }; 25 26 extern const struct crypto_type crypto_nivaead_type; 27 28 static inline void crypto_set_aead_spawn( 29 struct crypto_aead_spawn *spawn, struct crypto_instance *inst) 30 { 31 crypto_set_spawn(&spawn->base, inst); 32 } 33 34 struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask); 35 36 int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name, 37 u32 type, u32 mask); 38 39 static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn) 40 { 41 crypto_drop_spawn(&spawn->base); 42 } 43 44 static inline struct crypto_alg *crypto_aead_spawn_alg( 45 struct crypto_aead_spawn *spawn) 46 { 47 return spawn->base.alg; 48 } 49 50 static inline struct crypto_aead *crypto_spawn_aead( 51 struct crypto_aead_spawn *spawn) 52 { 53 return __crypto_aead_cast( 54 crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD, 55 CRYPTO_ALG_TYPE_MASK)); 56 } 57 58 struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl, 59 struct rtattr **tb, u32 type, 60 u32 mask); 61 void aead_geniv_free(struct crypto_instance *inst); 62 int aead_geniv_init(struct crypto_tfm *tfm); 63 void aead_geniv_exit(struct crypto_tfm *tfm); 64 65 static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv) 66 { 67 return crypto_aead_crt(geniv)->base; 68 } 69 70 static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req) 71 { 72 return aead_request_ctx(&req->areq); 73 } 74 75 static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req, 76 int err) 77 { 78 aead_request_complete(&req->areq, err); 79 } 80 81 #endif /* _CRYPTO_INTERNAL_AEAD_H */ 82 83