~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/crypto/internal/skcipher.h

Version: ~ [ linux-5.3-rc8 ] ~ [ linux-5.2.13 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.71 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.142 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.191 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.191 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.73 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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/list.h>
 19 #include <linux/types.h>
 20 
 21 struct aead_request;
 22 struct rtattr;
 23 
 24 struct skcipher_instance {
 25         void (*free)(struct skcipher_instance *inst);
 26         union {
 27                 struct {
 28                         char head[offsetof(struct skcipher_alg, base)];
 29                         struct crypto_instance base;
 30                 } s;
 31                 struct skcipher_alg alg;
 32         };
 33 };
 34 
 35 struct crypto_skcipher_spawn {
 36         struct crypto_spawn base;
 37 };
 38 
 39 struct skcipher_walk {
 40         union {
 41                 struct {
 42                         struct page *page;
 43                         unsigned long offset;
 44                 } phys;
 45 
 46                 struct {
 47                         u8 *page;
 48                         void *addr;
 49                 } virt;
 50         } src, dst;
 51 
 52         struct scatter_walk in;
 53         unsigned int nbytes;
 54 
 55         struct scatter_walk out;
 56         unsigned int total;
 57 
 58         struct list_head buffers;
 59 
 60         u8 *page;
 61         u8 *buffer;
 62         u8 *oiv;
 63         void *iv;
 64 
 65         unsigned int ivsize;
 66 
 67         int flags;
 68         unsigned int blocksize;
 69         unsigned int chunksize;
 70         unsigned int alignmask;
 71 };
 72 
 73 extern const struct crypto_type crypto_givcipher_type;
 74 
 75 static inline struct crypto_instance *skcipher_crypto_instance(
 76         struct skcipher_instance *inst)
 77 {
 78         return &inst->s.base;
 79 }
 80 
 81 static inline struct skcipher_instance *skcipher_alg_instance(
 82         struct crypto_skcipher *skcipher)
 83 {
 84         return container_of(crypto_skcipher_alg(skcipher),
 85                             struct skcipher_instance, alg);
 86 }
 87 
 88 static inline void *skcipher_instance_ctx(struct skcipher_instance *inst)
 89 {
 90         return crypto_instance_ctx(skcipher_crypto_instance(inst));
 91 }
 92 
 93 static inline void skcipher_request_complete(struct skcipher_request *req, int err)
 94 {
 95         req->base.complete(&req->base, err);
 96 }
 97 
 98 static inline void crypto_set_skcipher_spawn(
 99         struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst)
100 {
101         crypto_set_spawn(&spawn->base, inst);
102 }
103 
104 int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
105                          u32 type, u32 mask);
106 
107 static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
108 {
109         crypto_drop_spawn(&spawn->base);
110 }
111 
112 static inline struct skcipher_alg *crypto_skcipher_spawn_alg(
113         struct crypto_skcipher_spawn *spawn)
114 {
115         return container_of(spawn->base.alg, struct skcipher_alg, base);
116 }
117 
118 static inline struct skcipher_alg *crypto_spawn_skcipher_alg(
119         struct crypto_skcipher_spawn *spawn)
120 {
121         return crypto_skcipher_spawn_alg(spawn);
122 }
123 
124 static inline struct crypto_skcipher *crypto_spawn_skcipher(
125         struct crypto_skcipher_spawn *spawn)
126 {
127         return crypto_spawn_tfm2(&spawn->base);
128 }
129 
130 static inline void crypto_skcipher_set_reqsize(
131         struct crypto_skcipher *skcipher, unsigned int reqsize)
132 {
133         skcipher->reqsize = reqsize;
134 }
135 
136 int crypto_register_skcipher(struct skcipher_alg *alg);
137 void crypto_unregister_skcipher(struct skcipher_alg *alg);
138 int crypto_register_skciphers(struct skcipher_alg *algs, int count);
139 void crypto_unregister_skciphers(struct skcipher_alg *algs, int count);
140 int skcipher_register_instance(struct crypto_template *tmpl,
141                                struct skcipher_instance *inst);
142 
143 int skcipher_walk_done(struct skcipher_walk *walk, int err);
144 int skcipher_walk_virt(struct skcipher_walk *walk,
145                        struct skcipher_request *req,
146                        bool atomic);
147 void skcipher_walk_atomise(struct skcipher_walk *walk);
148 int skcipher_walk_async(struct skcipher_walk *walk,
149                         struct skcipher_request *req);
150 int skcipher_walk_aead(struct skcipher_walk *walk, struct aead_request *req,
151                        bool atomic);
152 int skcipher_walk_aead_encrypt(struct skcipher_walk *walk,
153                                struct aead_request *req, bool atomic);
154 int skcipher_walk_aead_decrypt(struct skcipher_walk *walk,
155                                struct aead_request *req, bool atomic);
156 void skcipher_walk_complete(struct skcipher_walk *walk, int err);
157 
158 static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
159                                                int err)
160 {
161         req->base.complete(&req->base, err);
162 }
163 
164 static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
165 {
166         return req->base.flags;
167 }
168 
169 static inline void *crypto_skcipher_ctx(struct crypto_skcipher *tfm)
170 {
171         return crypto_tfm_ctx(&tfm->base);
172 }
173 
174 static inline void *skcipher_request_ctx(struct skcipher_request *req)
175 {
176         return req->__ctx;
177 }
178 
179 static inline u32 skcipher_request_flags(struct skcipher_request *req)
180 {
181         return req->base.flags;
182 }
183 
184 static inline unsigned int crypto_skcipher_alg_min_keysize(
185         struct skcipher_alg *alg)
186 {
187         if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
188             CRYPTO_ALG_TYPE_BLKCIPHER)
189                 return alg->base.cra_blkcipher.min_keysize;
190 
191         if (alg->base.cra_ablkcipher.encrypt)
192                 return alg->base.cra_ablkcipher.min_keysize;
193 
194         return alg->min_keysize;
195 }
196 
197 static inline unsigned int crypto_skcipher_alg_max_keysize(
198         struct skcipher_alg *alg)
199 {
200         if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
201             CRYPTO_ALG_TYPE_BLKCIPHER)
202                 return alg->base.cra_blkcipher.max_keysize;
203 
204         if (alg->base.cra_ablkcipher.encrypt)
205                 return alg->base.cra_ablkcipher.max_keysize;
206 
207         return alg->max_keysize;
208 }
209 
210 #endif  /* _CRYPTO_INTERNAL_SKCIPHER_H */
211 
212 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp