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-rw-r--r--crypto/hash.c102
1 files changed, 93 insertions, 9 deletions
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)