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crypto: ahash - Convert to new style algorithms
This patch converts crypto_ahash to the new style. The old ahash algorithm type is retained until the existing ahash implementations are also converted. All ahash users will automatically get the new crypto_ahash type. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
parent
2ca33da1de
commit
88056ec346
5 changed files with 148 additions and 91 deletions
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@ -24,6 +24,12 @@
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#include "internal.h"
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static inline struct ahash_alg *crypto_ahash_alg(struct crypto_ahash *hash)
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{
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return container_of(crypto_hash_alg_common(hash), struct ahash_alg,
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halg);
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}
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static int hash_walk_next(struct crypto_hash_walk *walk)
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{
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unsigned int alignmask = walk->alignmask;
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@ -169,30 +175,11 @@ static int ahash_nosetkey(struct crypto_ahash *tfm, const u8 *key,
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return -ENOSYS;
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}
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int crypto_ahash_import(struct ahash_request *req, const u8 *in)
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{
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struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
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struct ahash_alg *alg = crypto_ahash_alg(tfm);
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memcpy(ahash_request_ctx(req), in, crypto_ahash_reqsize(tfm));
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if (alg->reinit)
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alg->reinit(req);
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return 0;
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}
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EXPORT_SYMBOL_GPL(crypto_ahash_import);
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static unsigned int crypto_ahash_ctxsize(struct crypto_alg *alg, u32 type,
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u32 mask)
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{
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return alg->cra_ctxsize;
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}
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static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
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{
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struct ahash_alg *alg = &tfm->__crt_alg->cra_ahash;
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struct ahash_tfm *crt = &tfm->crt_ahash;
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struct old_ahash_alg *alg = &tfm->__crt_alg->cra_ahash;
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struct crypto_ahash *crt = __crypto_ahash_cast(tfm);
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struct ahash_alg *nalg = crypto_ahash_alg(crt);
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if (alg->digestsize > PAGE_SIZE / 8)
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return -EINVAL;
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@ -204,9 +191,42 @@ static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
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crt->setkey = alg->setkey ? ahash_setkey : ahash_nosetkey;
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crt->digestsize = alg->digestsize;
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nalg->setkey = alg->setkey;
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nalg->halg.digestsize = alg->digestsize;
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return 0;
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}
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static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
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{
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struct crypto_ahash *hash = __crypto_ahash_cast(tfm);
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struct ahash_alg *alg = crypto_ahash_alg(hash);
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struct old_ahash_alg *oalg = crypto_old_ahash_alg(hash);
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if (tfm->__crt_alg->cra_type != &crypto_ahash_type)
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return crypto_init_shash_ops_async(tfm);
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if (oalg->init)
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return crypto_init_ahash_ops(tfm, 0, 0);
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hash->init = alg->init;
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hash->update = alg->update;
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hash->final = alg->final;
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hash->digest = alg->digest;
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hash->setkey = alg->setkey ? ahash_setkey : ahash_nosetkey;
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hash->digestsize = alg->halg.digestsize;
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return 0;
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}
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static unsigned int crypto_ahash_extsize(struct crypto_alg *alg)
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{
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if (alg->cra_type == &crypto_ahash_type)
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return alg->cra_ctxsize;
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return sizeof(struct crypto_shash *);
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}
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static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
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__attribute__ ((unused));
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static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
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@ -215,17 +235,29 @@ static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
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seq_printf(m, "async : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
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"yes" : "no");
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seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
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seq_printf(m, "digestsize : %u\n", alg->cra_ahash.digestsize);
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seq_printf(m, "digestsize : %u\n",
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__crypto_hash_alg_common(alg)->digestsize);
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}
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const struct crypto_type crypto_ahash_type = {
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.ctxsize = crypto_ahash_ctxsize,
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.init = crypto_init_ahash_ops,
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.extsize = crypto_ahash_extsize,
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.init_tfm = crypto_ahash_init_tfm,
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#ifdef CONFIG_PROC_FS
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.show = crypto_ahash_show,
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#endif
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.maskclear = ~CRYPTO_ALG_TYPE_MASK,
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.maskset = CRYPTO_ALG_TYPE_AHASH_MASK,
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.type = CRYPTO_ALG_TYPE_AHASH,
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.tfmsize = offsetof(struct crypto_ahash, base),
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};
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EXPORT_SYMBOL_GPL(crypto_ahash_type);
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struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
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u32 mask)
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{
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return crypto_alloc_tfm(alg_name, &crypto_ahash_type, type, mask);
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}
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EXPORT_SYMBOL_GPL(crypto_alloc_ahash);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Asynchronous cryptographic hash type");
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@ -267,11 +267,11 @@ static void crypto_exit_shash_ops_async(struct crypto_tfm *tfm)
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crypto_free_shash(*ctx);
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}
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static int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
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int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
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{
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struct crypto_alg *calg = tfm->__crt_alg;
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struct shash_alg *alg = __crypto_shash_alg(calg);
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struct ahash_tfm *crt = &tfm->crt_ahash;
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struct crypto_ahash *crt = __crypto_ahash_cast(tfm);
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struct crypto_shash **ctx = crypto_tfm_ctx(tfm);
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struct crypto_shash *shash;
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@ -428,8 +428,6 @@ static int crypto_init_shash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
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switch (mask & CRYPTO_ALG_TYPE_MASK) {
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case CRYPTO_ALG_TYPE_HASH_MASK:
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return crypto_init_shash_ops_compat(tfm);
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case CRYPTO_ALG_TYPE_AHASH_MASK:
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return crypto_init_shash_ops_async(tfm);
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}
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return -EINVAL;
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@ -441,8 +439,6 @@ static unsigned int crypto_shash_ctxsize(struct crypto_alg *alg, u32 type,
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switch (mask & CRYPTO_ALG_TYPE_MASK) {
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case CRYPTO_ALG_TYPE_HASH_MASK:
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return sizeof(struct shash_desc *);
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case CRYPTO_ALG_TYPE_AHASH_MASK:
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return sizeof(struct crypto_shash *);
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}
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return 0;
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@ -15,6 +15,39 @@
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#include <linux/crypto.h>
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struct crypto_ahash;
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struct hash_alg_common {
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unsigned int digestsize;
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unsigned int statesize;
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struct crypto_alg base;
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};
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struct ahash_request {
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struct crypto_async_request base;
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unsigned int nbytes;
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struct scatterlist *src;
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u8 *result;
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void *__ctx[] CRYPTO_MINALIGN_ATTR;
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};
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struct ahash_alg {
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int (*init)(struct ahash_request *req);
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int (*update)(struct ahash_request *req);
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int (*final)(struct ahash_request *req);
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int (*finup)(struct ahash_request *req);
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int (*digest)(struct ahash_request *req);
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int (*export)(struct ahash_request *req, void *out);
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int (*import)(struct ahash_request *req, const void *in);
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int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
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unsigned int keylen);
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struct hash_alg_common halg;
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};
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struct shash_desc {
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struct crypto_shash *tfm;
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u32 flags;
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@ -37,6 +70,8 @@ struct shash_alg {
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unsigned int keylen);
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unsigned int descsize;
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/* These fields must match hash_alg_common. */
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unsigned int digestsize;
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unsigned int statesize;
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@ -44,6 +79,18 @@ struct shash_alg {
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};
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struct crypto_ahash {
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int (*init)(struct ahash_request *req);
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int (*update)(struct ahash_request *req);
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int (*final)(struct ahash_request *req);
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int (*finup)(struct ahash_request *req);
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int (*digest)(struct ahash_request *req);
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int (*export)(struct ahash_request *req, void *out);
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int (*import)(struct ahash_request *req, const void *in);
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int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
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unsigned int keylen);
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unsigned int digestsize;
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unsigned int reqsize;
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struct crypto_tfm base;
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};
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@ -54,19 +101,11 @@ struct crypto_shash {
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static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
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{
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return (struct crypto_ahash *)tfm;
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return container_of(tfm, struct crypto_ahash, base);
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}
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static inline struct crypto_ahash *crypto_alloc_ahash(const char *alg_name,
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u32 type, u32 mask)
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{
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type &= ~CRYPTO_ALG_TYPE_MASK;
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mask &= ~CRYPTO_ALG_TYPE_MASK;
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type |= CRYPTO_ALG_TYPE_AHASH;
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mask |= CRYPTO_ALG_TYPE_AHASH_MASK;
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return __crypto_ahash_cast(crypto_alloc_base(alg_name, type, mask));
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}
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struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
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u32 mask);
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static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
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{
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@ -75,7 +114,7 @@ static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
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static inline void crypto_free_ahash(struct crypto_ahash *tfm)
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{
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crypto_free_tfm(crypto_ahash_tfm(tfm));
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crypto_destroy_tfm(tfm, crypto_ahash_tfm(tfm));
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}
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static inline unsigned int crypto_ahash_alignmask(
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@ -84,14 +123,26 @@ static inline unsigned int crypto_ahash_alignmask(
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return crypto_tfm_alg_alignmask(crypto_ahash_tfm(tfm));
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}
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static inline struct ahash_tfm *crypto_ahash_crt(struct crypto_ahash *tfm)
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static inline struct hash_alg_common *__crypto_hash_alg_common(
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struct crypto_alg *alg)
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{
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return &crypto_ahash_tfm(tfm)->crt_ahash;
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return container_of(alg, struct hash_alg_common, base);
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}
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static inline struct hash_alg_common *crypto_hash_alg_common(
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struct crypto_ahash *tfm)
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{
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return __crypto_hash_alg_common(crypto_ahash_tfm(tfm)->__crt_alg);
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}
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static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm)
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{
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return crypto_ahash_crt(tfm)->digestsize;
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return tfm->digestsize;
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}
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static inline unsigned int crypto_ahash_statesize(struct crypto_ahash *tfm)
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{
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return crypto_hash_alg_common(tfm)->statesize;
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}
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static inline u32 crypto_ahash_get_flags(struct crypto_ahash *tfm)
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@ -117,7 +168,7 @@ static inline struct crypto_ahash *crypto_ahash_reqtfm(
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static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm)
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{
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return crypto_ahash_crt(tfm)->reqsize;
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return tfm->reqsize;
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}
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static inline void *ahash_request_ctx(struct ahash_request *req)
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@ -128,41 +179,37 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
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static inline int crypto_ahash_setkey(struct crypto_ahash *tfm,
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const u8 *key, unsigned int keylen)
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{
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struct ahash_tfm *crt = crypto_ahash_crt(tfm);
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return crt->setkey(tfm, key, keylen);
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return tfm->setkey(tfm, key, keylen);
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}
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static inline int crypto_ahash_digest(struct ahash_request *req)
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{
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struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
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return crt->digest(req);
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return crypto_ahash_reqtfm(req)->digest(req);
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}
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static inline void crypto_ahash_export(struct ahash_request *req, u8 *out)
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static inline int crypto_ahash_export(struct ahash_request *req, void *out)
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{
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memcpy(out, ahash_request_ctx(req),
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crypto_ahash_reqsize(crypto_ahash_reqtfm(req)));
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return crypto_ahash_reqtfm(req)->export(req, out);
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}
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int crypto_ahash_import(struct ahash_request *req, const u8 *in);
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static inline int crypto_ahash_import(struct ahash_request *req, const void *in)
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{
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return crypto_ahash_reqtfm(req)->import(req, in);
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}
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static inline int crypto_ahash_init(struct ahash_request *req)
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{
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struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
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return crt->init(req);
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return crypto_ahash_reqtfm(req)->init(req);
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}
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static inline int crypto_ahash_update(struct ahash_request *req)
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{
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struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
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return crt->update(req);
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return crypto_ahash_reqtfm(req)->update(req);
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}
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static inline int crypto_ahash_final(struct ahash_request *req)
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{
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struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
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return crt->final(req);
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return crypto_ahash_reqtfm(req)->final(req);
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}
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static inline void ahash_request_set_tfm(struct ahash_request *req,
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@ -51,6 +51,9 @@ int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
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struct crypto_hash_walk *walk,
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struct scatterlist *sg, unsigned int len);
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int crypto_register_ahash(struct ahash_alg *alg);
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int crypto_unregister_ahash(struct ahash_alg *alg);
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int crypto_register_shash(struct shash_alg *alg);
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int crypto_unregister_shash(struct shash_alg *alg);
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int shash_register_instance(struct crypto_template *tmpl,
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@ -66,12 +69,14 @@ struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
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int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
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int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
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int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
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static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
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{
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return crypto_tfm_ctx(&tfm->base);
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return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
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}
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static inline struct ahash_alg *crypto_ahash_alg(
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static inline struct old_ahash_alg *crypto_old_ahash_alg(
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struct crypto_ahash *tfm)
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{
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return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
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@ -80,7 +85,7 @@ static inline struct ahash_alg *crypto_ahash_alg(
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static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
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unsigned int reqsize)
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{
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crypto_ahash_crt(tfm)->reqsize = reqsize;
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tfm->reqsize = reqsize;
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}
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static inline int ahash_enqueue_request(struct crypto_queue *queue,
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@ -120,6 +120,7 @@ struct crypto_rng;
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struct crypto_tfm;
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struct crypto_type;
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struct aead_givcrypt_request;
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struct ahash_request;
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struct skcipher_givcrypt_request;
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typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
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@ -146,16 +147,6 @@ struct ablkcipher_request {
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void *__ctx[] CRYPTO_MINALIGN_ATTR;
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};
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struct ahash_request {
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struct crypto_async_request base;
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unsigned int nbytes;
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struct scatterlist *src;
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u8 *result;
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void *__ctx[] CRYPTO_MINALIGN_ATTR;
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};
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/**
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* struct aead_request - AEAD request
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* @base: Common attributes for async crypto requests
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@ -220,7 +211,7 @@ struct ablkcipher_alg {
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unsigned int ivsize;
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};
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struct ahash_alg {
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struct old_ahash_alg {
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int (*init)(struct ahash_request *req);
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int (*reinit)(struct ahash_request *req);
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int (*update)(struct ahash_request *req);
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@ -346,7 +337,7 @@ struct crypto_alg {
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struct cipher_alg cipher;
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struct digest_alg digest;
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struct hash_alg hash;
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struct ahash_alg ahash;
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struct old_ahash_alg ahash;
|
||||
struct compress_alg compress;
|
||||
struct rng_alg rng;
|
||||
} cra_u;
|
||||
|
|
@ -433,18 +424,6 @@ struct hash_tfm {
|
|||
unsigned int digestsize;
|
||||
};
|
||||
|
||||
struct ahash_tfm {
|
||||
int (*init)(struct ahash_request *req);
|
||||
int (*update)(struct ahash_request *req);
|
||||
int (*final)(struct ahash_request *req);
|
||||
int (*digest)(struct ahash_request *req);
|
||||
int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
|
||||
unsigned int keylen);
|
||||
|
||||
unsigned int digestsize;
|
||||
unsigned int reqsize;
|
||||
};
|
||||
|
||||
struct compress_tfm {
|
||||
int (*cot_compress)(struct crypto_tfm *tfm,
|
||||
const u8 *src, unsigned int slen,
|
||||
|
|
@ -465,7 +444,6 @@ struct rng_tfm {
|
|||
#define crt_blkcipher crt_u.blkcipher
|
||||
#define crt_cipher crt_u.cipher
|
||||
#define crt_hash crt_u.hash
|
||||
#define crt_ahash crt_u.ahash
|
||||
#define crt_compress crt_u.compress
|
||||
#define crt_rng crt_u.rng
|
||||
|
||||
|
|
@ -479,7 +457,6 @@ struct crypto_tfm {
|
|||
struct blkcipher_tfm blkcipher;
|
||||
struct cipher_tfm cipher;
|
||||
struct hash_tfm hash;
|
||||
struct ahash_tfm ahash;
|
||||
struct compress_tfm compress;
|
||||
struct rng_tfm rng;
|
||||
} crt_u;
|
||||
|
|
|
|||
Loading…
Reference in a new issue