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 int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name, 35 u32 type, u32 mask); 36 37 static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn) 38 { 39 crypto_drop_spawn(&spawn->base); 40 } 41 42 static inline struct crypto_alg *crypto_aead_spawn_alg( 43 struct crypto_aead_spawn *spawn) 44 { 45 return spawn->base.alg; 46 } 47 48 static inline struct crypto_aead *crypto_spawn_aead( 49 struct crypto_aead_spawn *spawn) 50 { 51 return __crypto_aead_cast( 52 crypto_spawn_tfm(&spawn->base, CRYPTO_ALG_TYPE_AEAD, 53 CRYPTO_ALG_TYPE_MASK)); 54 } 55 56 struct crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl, 57 struct rtattr **tb, u32 type, 58 u32 mask); 59 void aead_geniv_free(struct crypto_instance *inst); 60 int aead_geniv_init(struct crypto_tfm *tfm); 61 void aead_geniv_exit(struct crypto_tfm *tfm); 62 63 static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv) 64 { 65 return crypto_aead_crt(geniv)->base; 66 } 67 68 static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req) 69 { 70 return aead_request_ctx(&req->areq); 71 } 72 73 static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req, 74 int err) 75 { 76 aead_request_complete(&req->areq, err); 77 } 78 79 #endif /* _CRYPTO_INTERNAL_AEAD_H */ 80 81