aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--crypto/Makefile1
-rw-r--r--crypto/ahash.c106
-rw-r--r--crypto/api.c8
-rw-r--r--crypto/digest.c81
-rw-r--r--crypto/hash.c102
-rw-r--r--crypto/internal.h1
-rw-r--r--include/crypto/algapi.h36
-rw-r--r--include/linux/crypto.h187
8 files changed, 507 insertions, 15 deletions
diff --git a/crypto/Makefile b/crypto/Makefile
index 807656b64e02..d4f3ed857df0 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_CRYPTO_BLKCIPHER) += crypto_blkcipher.o
19obj-$(CONFIG_CRYPTO_SEQIV) += seqiv.o 19obj-$(CONFIG_CRYPTO_SEQIV) += seqiv.o
20 20
21crypto_hash-objs := hash.o 21crypto_hash-objs := hash.o
22crypto_hash-objs += ahash.o
22obj-$(CONFIG_CRYPTO_HASH) += crypto_hash.o 23obj-$(CONFIG_CRYPTO_HASH) += crypto_hash.o
23 24
24obj-$(CONFIG_CRYPTO_MANAGER) += cryptomgr.o 25obj-$(CONFIG_CRYPTO_MANAGER) += cryptomgr.o
diff --git a/crypto/ahash.c b/crypto/ahash.c
new file mode 100644
index 000000000000..a83e035d9a3f
--- /dev/null
+++ b/crypto/ahash.c
@@ -0,0 +1,106 @@
1/*
2 * Asynchronous Cryptographic Hash operations.
3 *
4 * This is the asynchronous version of hash.c with notification of
5 * completion via a callback.
6 *
7 * Copyright (c) 2008 Loc Ho <lho@amcc.com>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
12 * any later version.
13 *
14 */
15
16#include <crypto/algapi.h>
17#include <linux/err.h>
18#include <linux/kernel.h>
19#include <linux/module.h>
20#include <linux/sched.h>
21#include <linux/slab.h>
22#include <linux/seq_file.h>
23
24#include "internal.h"
25
26static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key,
27 unsigned int keylen)
28{
29 struct ahash_alg *ahash = crypto_ahash_alg(tfm);
30 unsigned long alignmask = crypto_ahash_alignmask(tfm);
31 int ret;
32 u8 *buffer, *alignbuffer;
33 unsigned long absize;
34
35 absize = keylen + alignmask;
36 buffer = kmalloc(absize, GFP_ATOMIC);
37 if (!buffer)
38 return -ENOMEM;
39
40 alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1);
41 memcpy(alignbuffer, key, keylen);
42 ret = ahash->setkey(tfm, alignbuffer, keylen);
43 memset(alignbuffer, 0, keylen);
44 kfree(buffer);
45 return ret;
46}
47
48static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
49 unsigned int keylen)
50{
51 struct ahash_alg *ahash = crypto_ahash_alg(tfm);
52 unsigned long alignmask = crypto_ahash_alignmask(tfm);
53
54 if ((unsigned long)key & alignmask)
55 return ahash_setkey_unaligned(tfm, key, keylen);
56
57 return ahash->setkey(tfm, key, keylen);
58}
59
60static unsigned int crypto_ahash_ctxsize(struct crypto_alg *alg, u32 type,
61 u32 mask)
62{
63 return alg->cra_ctxsize;
64}
65
66static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
67{
68 struct ahash_alg *alg = &tfm->__crt_alg->cra_ahash;
69 struct ahash_tfm *crt = &tfm->crt_ahash;
70
71 if (alg->digestsize > crypto_tfm_alg_blocksize(tfm))
72 return -EINVAL;
73
74 crt->init = alg->init;
75 crt->update = alg->update;
76 crt->final = alg->final;
77 crt->digest = alg->digest;
78 crt->setkey = ahash_setkey;
79 crt->base = __crypto_ahash_cast(tfm);
80 crt->digestsize = alg->digestsize;
81
82 return 0;
83}
84
85static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
86 __attribute__ ((unused));
87static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
88{
89 seq_printf(m, "type : ahash\n");
90 seq_printf(m, "async : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
91 "yes" : "no");
92 seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
93 seq_printf(m, "digestsize : %u\n", alg->cra_hash.digestsize);
94}
95
96const struct crypto_type crypto_ahash_type = {
97 .ctxsize = crypto_ahash_ctxsize,
98 .init = crypto_init_ahash_ops,
99#ifdef CONFIG_PROC_FS
100 .show = crypto_ahash_show,
101#endif
102};
103EXPORT_SYMBOL_GPL(crypto_ahash_type);
104
105MODULE_LICENSE("GPL");
106MODULE_DESCRIPTION("Asynchronous cryptographic hash type");
diff --git a/crypto/api.c b/crypto/api.c
index 0a0f41ef255f..d06e33270abe 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -235,8 +235,12 @@ static int crypto_init_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
235 return crypto_init_cipher_ops(tfm); 235 return crypto_init_cipher_ops(tfm);
236 236
237 case CRYPTO_ALG_TYPE_DIGEST: 237 case CRYPTO_ALG_TYPE_DIGEST:
238 return crypto_init_digest_ops(tfm); 238 if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) !=
239 239 CRYPTO_ALG_TYPE_HASH_MASK)
240 return crypto_init_digest_ops_async(tfm);
241 else
242 return crypto_init_digest_ops(tfm);
243
240 case CRYPTO_ALG_TYPE_COMPRESS: 244 case CRYPTO_ALG_TYPE_COMPRESS:
241 return crypto_init_compress_ops(tfm); 245 return crypto_init_compress_ops(tfm);
242 246
diff --git a/crypto/digest.c b/crypto/digest.c
index b526cc348b79..025c9aea24ed 100644
--- a/crypto/digest.c
+++ b/crypto/digest.c
@@ -157,3 +157,84 @@ int crypto_init_digest_ops(struct crypto_tfm *tfm)
157void crypto_exit_digest_ops(struct crypto_tfm *tfm) 157void crypto_exit_digest_ops(struct crypto_tfm *tfm)
158{ 158{
159} 159}
160
161static int digest_async_nosetkey(struct crypto_ahash *tfm_async, const u8 *key,
162 unsigned int keylen)
163{
164 crypto_ahash_clear_flags(tfm_async, CRYPTO_TFM_RES_MASK);
165 return -ENOSYS;
166}
167
168static int digest_async_setkey(struct crypto_ahash *tfm_async, const u8 *key,
169 unsigned int keylen)
170{
171 struct crypto_tfm *tfm = crypto_ahash_tfm(tfm_async);
172 struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
173
174 crypto_ahash_clear_flags(tfm_async, CRYPTO_TFM_RES_MASK);
175 return dalg->dia_setkey(tfm, key, keylen);
176}
177
178static int digest_async_init(struct ahash_request *req)
179{
180 struct crypto_tfm *tfm = req->base.tfm;
181 struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
182
183 dalg->dia_init(tfm);
184 return 0;
185}
186
187static int digest_async_update(struct ahash_request *req)
188{
189 struct crypto_tfm *tfm = req->base.tfm;
190 struct hash_desc desc = {
191 .tfm = __crypto_hash_cast(tfm),
192 .flags = req->base.flags,
193 };
194
195 update(&desc, req->src, req->nbytes);
196 return 0;
197}
198
199static int digest_async_final(struct ahash_request *req)
200{
201 struct crypto_tfm *tfm = req->base.tfm;
202 struct hash_desc desc = {
203 .tfm = __crypto_hash_cast(tfm),
204 .flags = req->base.flags,
205 };
206
207 final(&desc, req->result);
208 return 0;
209}
210
211static int digest_async_digest(struct ahash_request *req)
212{
213 struct crypto_tfm *tfm = req->base.tfm;
214 struct hash_desc desc = {
215 .tfm = __crypto_hash_cast(tfm),
216 .flags = req->base.flags,
217 };
218
219 return digest(&desc, req->src, req->nbytes, req->result);
220}
221
222int crypto_init_digest_ops_async(struct crypto_tfm *tfm)
223{
224 struct ahash_tfm *crt = &tfm->crt_ahash;
225 struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
226
227 if (dalg->dia_digestsize > crypto_tfm_alg_blocksize(tfm))
228 return -EINVAL;
229
230 crt->init = digest_async_init;
231 crt->update = digest_async_update;
232 crt->final = digest_async_final;
233 crt->digest = digest_async_digest;
234 crt->setkey = dalg->dia_setkey ? digest_async_setkey :
235 digest_async_nosetkey;
236 crt->digestsize = dalg->dia_digestsize;
237 crt->base = __crypto_ahash_cast(tfm);
238
239 return 0;
240}
diff --git a/crypto/hash.c b/crypto/hash.c
index 7dcff671c19b..f9400a014e74 100644
--- a/crypto/hash.c
+++ b/crypto/hash.c
@@ -59,24 +59,108 @@ static int hash_setkey(struct crypto_hash *crt, const u8 *key,
59 return alg->setkey(crt, key, keylen); 59 return alg->setkey(crt, key, keylen);
60} 60}
61 61
62static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask) 62static int hash_async_setkey(struct crypto_ahash *tfm_async, const u8 *key,
63 unsigned int keylen)
64{
65 struct crypto_tfm *tfm = crypto_ahash_tfm(tfm_async);
66 struct crypto_hash *tfm_hash = __crypto_hash_cast(tfm);
67 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
68
69 return alg->setkey(tfm_hash, key, keylen);
70}
71
72static int hash_async_init(struct ahash_request *req)
73{
74 struct crypto_tfm *tfm = req->base.tfm;
75 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
76 struct hash_desc desc = {
77 .tfm = __crypto_hash_cast(tfm),
78 .flags = req->base.flags,
79 };
80
81 return alg->init(&desc);
82}
83
84static int hash_async_update(struct ahash_request *req)
85{
86 struct crypto_tfm *tfm = req->base.tfm;
87 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
88 struct hash_desc desc = {
89 .tfm = __crypto_hash_cast(tfm),
90 .flags = req->base.flags,
91 };
92
93 return alg->update(&desc, req->src, req->nbytes);
94}
95
96static int hash_async_final(struct ahash_request *req)
97{
98 struct crypto_tfm *tfm = req->base.tfm;
99 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
100 struct hash_desc desc = {
101 .tfm = __crypto_hash_cast(tfm),
102 .flags = req->base.flags,
103 };
104
105 return alg->final(&desc, req->result);
106}
107
108static int hash_async_digest(struct ahash_request *req)
109{
110 struct crypto_tfm *tfm = req->base.tfm;
111 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
112 struct hash_desc desc = {
113 .tfm = __crypto_hash_cast(tfm),
114 .flags = req->base.flags,
115 };
116
117 return alg->digest(&desc, req->src, req->nbytes, req->result);
118}
119
120static int crypto_init_hash_ops_async(struct crypto_tfm *tfm)
121{
122 struct ahash_tfm *crt = &tfm->crt_ahash;
123 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
124
125 crt->init = hash_async_init;
126 crt->update = hash_async_update;
127 crt->final = hash_async_final;
128 crt->digest = hash_async_digest;
129 crt->setkey = hash_async_setkey;
130 crt->digestsize = alg->digestsize;
131 crt->base = __crypto_ahash_cast(tfm);
132
133 return 0;
134}
135
136static int crypto_init_hash_ops_sync(struct crypto_tfm *tfm)
63{ 137{
64 struct hash_tfm *crt = &tfm->crt_hash; 138 struct hash_tfm *crt = &tfm->crt_hash;
65 struct hash_alg *alg = &tfm->__crt_alg->cra_hash; 139 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
66 140
67 if (alg->digestsize > crypto_tfm_alg_blocksize(tfm)) 141 crt->init = alg->init;
68 return -EINVAL; 142 crt->update = alg->update;
69 143 crt->final = alg->final;
70 crt->init = alg->init; 144 crt->digest = alg->digest;
71 crt->update = alg->update; 145 crt->setkey = hash_setkey;
72 crt->final = alg->final;
73 crt->digest = alg->digest;
74 crt->setkey = hash_setkey;
75 crt->digestsize = alg->digestsize; 146 crt->digestsize = alg->digestsize;
76 147
77 return 0; 148 return 0;
78} 149}
79 150
151static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
152{
153 struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
154
155 if (alg->digestsize > crypto_tfm_alg_blocksize(tfm))
156 return -EINVAL;
157
158 if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) != CRYPTO_ALG_TYPE_HASH_MASK)
159 return crypto_init_hash_ops_async(tfm);
160 else
161 return crypto_init_hash_ops_sync(tfm);
162}
163
80static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg) 164static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
81 __attribute__ ((unused)); 165 __attribute__ ((unused));
82static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg) 166static void crypto_hash_show(struct seq_file *m, struct crypto_alg *alg)
diff --git a/crypto/internal.h b/crypto/internal.h
index 32f4c2145603..683fcb2d91f4 100644
--- a/crypto/internal.h
+++ b/crypto/internal.h
@@ -86,6 +86,7 @@ struct crypto_alg *__crypto_alg_lookup(const char *name, u32 type, u32 mask);
86struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask); 86struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask);
87 87
88int crypto_init_digest_ops(struct crypto_tfm *tfm); 88int crypto_init_digest_ops(struct crypto_tfm *tfm);
89int crypto_init_digest_ops_async(struct crypto_tfm *tfm);
89int crypto_init_cipher_ops(struct crypto_tfm *tfm); 90int crypto_init_cipher_ops(struct crypto_tfm *tfm);
90int crypto_init_compress_ops(struct crypto_tfm *tfm); 91int crypto_init_compress_ops(struct crypto_tfm *tfm);
91 92
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 60d06e784be3..fef272a8ceeb 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -98,6 +98,7 @@ extern const struct crypto_type crypto_ablkcipher_type;
98extern const struct crypto_type crypto_aead_type; 98extern const struct crypto_type crypto_aead_type;
99extern const struct crypto_type crypto_blkcipher_type; 99extern const struct crypto_type crypto_blkcipher_type;
100extern const struct crypto_type crypto_hash_type; 100extern const struct crypto_type crypto_hash_type;
101extern const struct crypto_type crypto_ahash_type;
101 102
102void crypto_mod_put(struct crypto_alg *alg); 103void crypto_mod_put(struct crypto_alg *alg);
103 104
@@ -314,5 +315,40 @@ static inline int crypto_requires_sync(u32 type, u32 mask)
314 return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC; 315 return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
315} 316}
316 317
318static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
319{
320 return crypto_tfm_ctx(&tfm->base);
321}
322
323static inline struct ahash_alg *crypto_ahash_alg(
324 struct crypto_ahash *tfm)
325{
326 return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
327}
328
329static inline int ahash_enqueue_request(struct crypto_queue *queue,
330 struct ahash_request *request)
331{
332 return crypto_enqueue_request(queue, &request->base);
333}
334
335static inline struct ahash_request *ahash_dequeue_request(
336 struct crypto_queue *queue)
337{
338 return ahash_request_cast(crypto_dequeue_request(queue));
339}
340
341static inline void *ahash_request_ctx(struct ahash_request *req)
342{
343 return req->__ctx;
344}
345
346static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
347 struct crypto_ahash *tfm)
348{
349 return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
350}
351
352
317#endif /* _CRYPTO_ALGAPI_H */ 353#endif /* _CRYPTO_ALGAPI_H */
318 354
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 425824bd49f3..b6efe569128d 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -30,15 +30,17 @@
30 */ 30 */
31#define CRYPTO_ALG_TYPE_MASK 0x0000000f 31#define CRYPTO_ALG_TYPE_MASK 0x0000000f
32#define CRYPTO_ALG_TYPE_CIPHER 0x00000001 32#define CRYPTO_ALG_TYPE_CIPHER 0x00000001
33#define CRYPTO_ALG_TYPE_DIGEST 0x00000002 33#define CRYPTO_ALG_TYPE_COMPRESS 0x00000002
34#define CRYPTO_ALG_TYPE_HASH 0x00000003 34#define CRYPTO_ALG_TYPE_AEAD 0x00000003
35#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004 35#define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004
36#define CRYPTO_ALG_TYPE_ABLKCIPHER 0x00000005 36#define CRYPTO_ALG_TYPE_ABLKCIPHER 0x00000005
37#define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006 37#define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006
38#define CRYPTO_ALG_TYPE_COMPRESS 0x00000008 38#define CRYPTO_ALG_TYPE_DIGEST 0x00000008
39#define CRYPTO_ALG_TYPE_AEAD 0x00000009 39#define CRYPTO_ALG_TYPE_HASH 0x00000009
40#define CRYPTO_ALG_TYPE_AHASH 0x0000000a
40 41
41#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e 42#define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e
43#define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000c
42#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c 44#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c
43 45
44#define CRYPTO_ALG_LARVAL 0x00000010 46#define CRYPTO_ALG_LARVAL 0x00000010
@@ -102,6 +104,7 @@ struct crypto_async_request;
102struct crypto_aead; 104struct crypto_aead;
103struct crypto_blkcipher; 105struct crypto_blkcipher;
104struct crypto_hash; 106struct crypto_hash;
107struct crypto_ahash;
105struct crypto_tfm; 108struct crypto_tfm;
106struct crypto_type; 109struct crypto_type;
107struct aead_givcrypt_request; 110struct aead_givcrypt_request;
@@ -131,6 +134,18 @@ struct ablkcipher_request {
131 void *__ctx[] CRYPTO_MINALIGN_ATTR; 134 void *__ctx[] CRYPTO_MINALIGN_ATTR;
132}; 135};
133 136
137struct ahash_request {
138 struct crypto_async_request base;
139
140 void *info;
141
142 unsigned int nbytes;
143 struct scatterlist *src;
144 u8 *result;
145
146 void *__ctx[] CRYPTO_MINALIGN_ATTR;
147};
148
134/** 149/**
135 * struct aead_request - AEAD request 150 * struct aead_request - AEAD request
136 * @base: Common attributes for async crypto requests 151 * @base: Common attributes for async crypto requests
@@ -195,6 +210,17 @@ struct ablkcipher_alg {
195 unsigned int ivsize; 210 unsigned int ivsize;
196}; 211};
197 212
213struct ahash_alg {
214 int (*init)(struct ahash_request *req);
215 int (*update)(struct ahash_request *req);
216 int (*final)(struct ahash_request *req);
217 int (*digest)(struct ahash_request *req);
218 int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
219 unsigned int keylen);
220
221 unsigned int digestsize;
222};
223
198struct aead_alg { 224struct aead_alg {
199 int (*setkey)(struct crypto_aead *tfm, const u8 *key, 225 int (*setkey)(struct crypto_aead *tfm, const u8 *key,
200 unsigned int keylen); 226 unsigned int keylen);
@@ -272,6 +298,7 @@ struct compress_alg {
272#define cra_cipher cra_u.cipher 298#define cra_cipher cra_u.cipher
273#define cra_digest cra_u.digest 299#define cra_digest cra_u.digest
274#define cra_hash cra_u.hash 300#define cra_hash cra_u.hash
301#define cra_ahash cra_u.ahash
275#define cra_compress cra_u.compress 302#define cra_compress cra_u.compress
276 303
277struct crypto_alg { 304struct crypto_alg {
@@ -298,6 +325,7 @@ struct crypto_alg {
298 struct cipher_alg cipher; 325 struct cipher_alg cipher;
299 struct digest_alg digest; 326 struct digest_alg digest;
300 struct hash_alg hash; 327 struct hash_alg hash;
328 struct ahash_alg ahash;
301 struct compress_alg compress; 329 struct compress_alg compress;
302 } cra_u; 330 } cra_u;
303 331
@@ -383,6 +411,19 @@ struct hash_tfm {
383 unsigned int digestsize; 411 unsigned int digestsize;
384}; 412};
385 413
414struct ahash_tfm {
415 int (*init)(struct ahash_request *req);
416 int (*update)(struct ahash_request *req);
417 int (*final)(struct ahash_request *req);
418 int (*digest)(struct ahash_request *req);
419 int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
420 unsigned int keylen);
421
422 unsigned int digestsize;
423 struct crypto_ahash *base;
424 unsigned int reqsize;
425};
426
386struct compress_tfm { 427struct compress_tfm {
387 int (*cot_compress)(struct crypto_tfm *tfm, 428 int (*cot_compress)(struct crypto_tfm *tfm,
388 const u8 *src, unsigned int slen, 429 const u8 *src, unsigned int slen,
@@ -397,6 +438,7 @@ struct compress_tfm {
397#define crt_blkcipher crt_u.blkcipher 438#define crt_blkcipher crt_u.blkcipher
398#define crt_cipher crt_u.cipher 439#define crt_cipher crt_u.cipher
399#define crt_hash crt_u.hash 440#define crt_hash crt_u.hash
441#define crt_ahash crt_u.ahash
400#define crt_compress crt_u.compress 442#define crt_compress crt_u.compress
401 443
402struct crypto_tfm { 444struct crypto_tfm {
@@ -409,6 +451,7 @@ struct crypto_tfm {
409 struct blkcipher_tfm blkcipher; 451 struct blkcipher_tfm blkcipher;
410 struct cipher_tfm cipher; 452 struct cipher_tfm cipher;
411 struct hash_tfm hash; 453 struct hash_tfm hash;
454 struct ahash_tfm ahash;
412 struct compress_tfm compress; 455 struct compress_tfm compress;
413 } crt_u; 456 } crt_u;
414 457
@@ -441,6 +484,10 @@ struct crypto_hash {
441 struct crypto_tfm base; 484 struct crypto_tfm base;
442}; 485};
443 486
487struct crypto_ahash {
488 struct crypto_tfm base;
489};
490
444enum { 491enum {
445 CRYPTOA_UNSPEC, 492 CRYPTOA_UNSPEC,
446 CRYPTOA_ALG, 493 CRYPTOA_ALG,
@@ -1264,5 +1311,137 @@ static inline int crypto_comp_decompress(struct crypto_comp *tfm,
1264 src, slen, dst, dlen); 1311 src, slen, dst, dlen);
1265} 1312}
1266 1313
1314static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
1315{
1316 return (struct crypto_ahash *)tfm;
1317}
1318
1319static inline struct crypto_ahash *crypto_alloc_ahash(const char *alg_name,
1320 u32 type, u32 mask)
1321{
1322 type &= ~CRYPTO_ALG_TYPE_MASK;
1323 mask &= ~CRYPTO_ALG_TYPE_MASK;
1324 type |= CRYPTO_ALG_TYPE_AHASH;
1325 mask |= CRYPTO_ALG_TYPE_AHASH_MASK;
1326
1327 return __crypto_ahash_cast(crypto_alloc_base(alg_name, type, mask));
1328}
1329
1330static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
1331{
1332 return &tfm->base;
1333}
1334
1335static inline void crypto_free_ahash(struct crypto_ahash *tfm)
1336{
1337 crypto_free_tfm(crypto_ahash_tfm(tfm));
1338}
1339
1340static inline unsigned int crypto_ahash_alignmask(
1341 struct crypto_ahash *tfm)
1342{
1343 return crypto_tfm_alg_alignmask(crypto_ahash_tfm(tfm));
1344}
1345
1346static inline struct ahash_tfm *crypto_ahash_crt(struct crypto_ahash *tfm)
1347{
1348 return &crypto_ahash_tfm(tfm)->crt_ahash;
1349}
1350
1351static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm)
1352{
1353 return crypto_ahash_crt(tfm)->digestsize;
1354}
1355
1356static inline u32 crypto_ahash_get_flags(struct crypto_ahash *tfm)
1357{
1358 return crypto_tfm_get_flags(crypto_ahash_tfm(tfm));
1359}
1360
1361static inline void crypto_ahash_set_flags(struct crypto_ahash *tfm, u32 flags)
1362{
1363 crypto_tfm_set_flags(crypto_ahash_tfm(tfm), flags);
1364}
1365
1366static inline void crypto_ahash_clear_flags(struct crypto_ahash *tfm, u32 flags)
1367{
1368 crypto_tfm_clear_flags(crypto_ahash_tfm(tfm), flags);
1369}
1370
1371static inline struct crypto_ahash *crypto_ahash_reqtfm(
1372 struct ahash_request *req)
1373{
1374 return __crypto_ahash_cast(req->base.tfm);
1375}
1376
1377static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm)
1378{
1379 return crypto_ahash_crt(tfm)->reqsize;
1380}
1381
1382static inline int crypto_ahash_setkey(struct crypto_ahash *tfm,
1383 const u8 *key, unsigned int keylen)
1384{
1385 struct ahash_tfm *crt = crypto_ahash_crt(tfm);
1386
1387 return crt->setkey(crt->base, key, keylen);
1388}
1389
1390static inline int crypto_ahash_digest(struct ahash_request *req)
1391{
1392 struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
1393 return crt->digest(req);
1394}
1395
1396static inline void ahash_request_set_tfm(struct ahash_request *req,
1397 struct crypto_ahash *tfm)
1398{
1399 req->base.tfm = crypto_ahash_tfm(crypto_ahash_crt(tfm)->base);
1400}
1401
1402static inline struct ahash_request *ahash_request_alloc(
1403 struct crypto_ahash *tfm, gfp_t gfp)
1404{
1405 struct ahash_request *req;
1406
1407 req = kmalloc(sizeof(struct ahash_request) +
1408 crypto_ahash_reqsize(tfm), gfp);
1409
1410 if (likely(req))
1411 ahash_request_set_tfm(req, tfm);
1412
1413 return req;
1414}
1415
1416static inline void ahash_request_free(struct ahash_request *req)
1417{
1418 kfree(req);
1419}
1420
1421static inline struct ahash_request *ahash_request_cast(
1422 struct crypto_async_request *req)
1423{
1424 return container_of(req, struct ahash_request, base);
1425}
1426
1427static inline void ahash_request_set_callback(struct ahash_request *req,
1428 u32 flags,
1429 crypto_completion_t complete,
1430 void *data)
1431{
1432 req->base.complete = complete;
1433 req->base.data = data;
1434 req->base.flags = flags;
1435}
1436
1437static inline void ahash_request_set_crypt(struct ahash_request *req,
1438 struct scatterlist *src, u8 *result,
1439 unsigned int nbytes)
1440{
1441 req->src = src;
1442 req->nbytes = nbytes;
1443 req->result = result;
1444}
1445
1267#endif /* _LINUX_CRYPTO_H */ 1446#endif /* _LINUX_CRYPTO_H */
1268 1447
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 20:40:45 -0500