[PATCH] crypto : async implementation for sha1-mb

From: Megha Dey
Date: Mon Jun 20 2016 - 16:25:07 EST

From: Megha Dey <megha.dey@xxxxxxxxxxxxxxx>

Herbert wants the sha1-mb algorithm to have an async implementation:
https://lkml.org/lkml/2016/4/5/286.
Currently, sha1-mb uses an async interface for the outer algorithm
and a sync interface for the inner algorithm. This patch introduces
a async interface for even the inner algorithm.

Signed-off-by: Megha Dey <megha.dey@xxxxxxxxxxxxxxx>
Signed-off-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
---
arch/x86/crypto/sha-mb/sha1_mb.c | 182 ++++++++++++++++++++++-----------------
crypto/mcryptd.c | 124 ++++++++++++--------------
include/crypto/internal/hash.h | 12 +--
include/crypto/mcryptd.h | 8 +-
4 files changed, 163 insertions(+), 163 deletions(-)

diff --git a/arch/x86/crypto/sha-mb/sha1_mb.c b/arch/x86/crypto/sha-mb/sha1_mb.c
index 0a46491..ec2e76e 100644
--- a/arch/x86/crypto/sha-mb/sha1_mb.c
+++ b/arch/x86/crypto/sha-mb/sha1_mb.c
@@ -80,10 +80,10 @@ struct sha1_mb_ctx {
static inline struct mcryptd_hash_request_ctx
*cast_hash_to_mcryptd_ctx(struct sha1_hash_ctx *hash_ctx)
{
- struct shash_desc *desc;
+ struct ahash_request *areq;

- desc = container_of((void *) hash_ctx, struct shash_desc, __ctx);
- return container_of(desc, struct mcryptd_hash_request_ctx, desc);
+ areq = container_of((void *) hash_ctx, struct ahash_request, __ctx);
+ return container_of(areq, struct mcryptd_hash_request_ctx, areq);
}

static inline struct ahash_request
@@ -93,7 +93,7 @@ static inline struct ahash_request
}

static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx,
- struct shash_desc *desc)
+ struct ahash_request *areq)
{
rctx->flag = HASH_UPDATE;
}
@@ -375,9 +375,9 @@ static struct sha1_hash_ctx *sha1_ctx_mgr_flush(struct sha1_ctx_mgr *mgr)
}
}

-static int sha1_mb_init(struct shash_desc *desc)
+static int sha1_mb_init(struct ahash_request *areq)
{
- struct sha1_hash_ctx *sctx = shash_desc_ctx(desc);
+ struct sha1_hash_ctx *sctx = ahash_request_ctx(areq);

hash_ctx_init(sctx);
sctx->job.result_digest[0] = SHA1_H0;
@@ -395,7 +395,7 @@ static int sha1_mb_init(struct shash_desc *desc)
static int sha1_mb_set_results(struct mcryptd_hash_request_ctx *rctx)
{
int i;
- struct sha1_hash_ctx *sctx = shash_desc_ctx(&rctx->desc);
+ struct sha1_hash_ctx *sctx = ahash_request_ctx(&rctx->areq);
__be32 *dst = (__be32 *) rctx->out;

for (i = 0; i < 5; ++i)
@@ -427,7 +427,7 @@ static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx,

}
sha_ctx = (struct sha1_hash_ctx *)
- shash_desc_ctx(&rctx->desc);
+ ahash_request_ctx(&rctx->areq);
kernel_fpu_begin();
sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx,
rctx->walk.data, nbytes, flag);
@@ -519,11 +519,10 @@ static void sha1_mb_add_list(struct mcryptd_hash_request_ctx *rctx,
mcryptd_arm_flusher(cstate, delay);
}

-static int sha1_mb_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
+static int sha1_mb_update(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
- container_of(desc, struct mcryptd_hash_request_ctx, desc);
+ container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha1_mb_alg_state.alg_cstate);

@@ -539,7 +538,7 @@ static int sha1_mb_update(struct shash_desc *desc, const u8 *data,
}

/* need to init context */
- req_ctx_init(rctx, desc);
+ req_ctx_init(rctx, areq);

nbytes = crypto_ahash_walk_first(req, &rctx->walk);

@@ -552,7 +551,7 @@ static int sha1_mb_update(struct shash_desc *desc, const u8 *data,
rctx->flag |= HASH_DONE;

/* submit */
- sha_ctx = (struct sha1_hash_ctx *) shash_desc_ctx(desc);
+ sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq);
sha1_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data,
@@ -579,11 +578,10 @@ done:
return ret;
}

-static int sha1_mb_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
+static int sha1_mb_finup(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
- container_of(desc, struct mcryptd_hash_request_ctx, desc);
+ container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha1_mb_alg_state.alg_cstate);

@@ -598,7 +596,7 @@ static int sha1_mb_finup(struct shash_desc *desc, const u8 *data,
}

/* need to init context */
- req_ctx_init(rctx, desc);
+ req_ctx_init(rctx, areq);

nbytes = crypto_ahash_walk_first(req, &rctx->walk);

@@ -611,11 +609,10 @@ static int sha1_mb_finup(struct shash_desc *desc, const u8 *data,
rctx->flag |= HASH_DONE;
flag = HASH_LAST;
}
- rctx->out = out;

/* submit */
rctx->flag |= HASH_FINAL;
- sha_ctx = (struct sha1_hash_ctx *) shash_desc_ctx(desc);
+ sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq);
sha1_mb_add_list(rctx, cstate);

kernel_fpu_begin();
@@ -641,10 +638,10 @@ done:
return ret;
}

-static int sha1_mb_final(struct shash_desc *desc, u8 *out)
+static int sha1_mb_final(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
- container_of(desc, struct mcryptd_hash_request_ctx, desc);
+ container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha1_mb_alg_state.alg_cstate);

@@ -659,12 +656,11 @@ static int sha1_mb_final(struct shash_desc *desc, u8 *out)
}

/* need to init context */
- req_ctx_init(rctx, desc);
+ req_ctx_init(rctx, areq);

- rctx->out = out;
rctx->flag |= HASH_DONE | HASH_FINAL;

- sha_ctx = (struct sha1_hash_ctx *) shash_desc_ctx(desc);
+ sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq);
/* flag HASH_FINAL and 0 data size */
sha1_mb_add_list(rctx, cstate);
kernel_fpu_begin();
@@ -691,48 +687,98 @@ done:
return ret;
}

-static int sha1_mb_export(struct shash_desc *desc, void *out)
+static int sha1_mb_export(struct ahash_request *areq, void *out)
{
- struct sha1_hash_ctx *sctx = shash_desc_ctx(desc);
+ struct sha1_hash_ctx *sctx = ahash_request_ctx(areq);

memcpy(out, sctx, sizeof(*sctx));

return 0;
}

-static int sha1_mb_import(struct shash_desc *desc, const void *in)
+static int sha1_mb_import(struct ahash_request *areq, const void *in)
{
- struct sha1_hash_ctx *sctx = shash_desc_ctx(desc);
+ struct sha1_hash_ctx *sctx = ahash_request_ctx(areq);

memcpy(sctx, in, sizeof(*sctx));

return 0;
}

+static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm)
+{
+ struct mcryptd_ahash *mcryptd_tfm;
+ struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct mcryptd_hash_ctx *mctx;

-static struct shash_alg sha1_mb_shash_alg = {
- .digestsize = SHA1_DIGEST_SIZE,
+ mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb",
+ CRYPTO_ALG_INTERNAL,
+ CRYPTO_ALG_INTERNAL);
+ if (IS_ERR(mcryptd_tfm))
+ return PTR_ERR(mcryptd_tfm);
+ mctx = crypto_ahash_ctx(&mcryptd_tfm->base);
+ mctx->alg_state = &sha1_mb_alg_state;
+ ctx->mcryptd_tfm = mcryptd_tfm;
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct ahash_request) +
+ crypto_ahash_reqsize(&mcryptd_tfm->base));
+
+ return 0;
+}
+
+static void sha1_mb_async_exit_tfm(struct crypto_tfm *tfm)
+{
+ struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ mcryptd_free_ahash(ctx->mcryptd_tfm);
+}
+
+static int sha1_mb_areq_init_tfm(struct crypto_tfm *tfm)
+{
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct ahash_request) +
+ sizeof(struct sha1_hash_ctx));
+
+ return 0;
+}
+
+static void sha1_mb_areq_exit_tfm(struct crypto_tfm *tfm)
+{
+ struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ mcryptd_free_ahash(ctx->mcryptd_tfm);
+}
+
+static struct ahash_alg sha1_mb_areq_alg = {
.init = sha1_mb_init,
.update = sha1_mb_update,
.final = sha1_mb_final,
.finup = sha1_mb_finup,
.export = sha1_mb_export,
.import = sha1_mb_import,
- .descsize = sizeof(struct sha1_hash_ctx),
- .statesize = sizeof(struct sha1_hash_ctx),
- .base = {
- .cra_name = "__sha1-mb",
- .cra_driver_name = "__intel_sha1-mb",
- .cra_priority = 100,
- /*
- * use ASYNC flag as some buffers in multi-buffer
- * algo may not have completed before hashing thread sleep
- */
- .cra_flags = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_ASYNC |
- CRYPTO_ALG_INTERNAL,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(sha1_mb_shash_alg.base.cra_list),
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct sha1_hash_ctx),
+ .base = {
+ .cra_name = "__sha1-mb",
+ .cra_driver_name = "__intel_sha1-mb",
+ .cra_priority = 100,
+ /*
+ * use ASYNC flag as some buffers in multi-buffer
+ * algo may not have completed before hashing thread
+ * sleep
+ */
+ .cra_flags = CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT
+ (sha1_mb_areq_alg.halg.base.cra_list),
+ .cra_init = sha1_mb_areq_init_tfm,
+ .cra_exit = sha1_mb_areq_exit_tfm,
+ .cra_ctxsize = sizeof(struct sha1_hash_ctx),
+ }
}
};

@@ -817,46 +863,20 @@ static int sha1_mb_async_import(struct ahash_request *req, const void *in)
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
- struct crypto_shash *child = mcryptd_ahash_child(mcryptd_tfm);
+ struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm);
struct mcryptd_hash_request_ctx *rctx;
- struct shash_desc *desc;
+ struct ahash_request *areq;

memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
rctx = ahash_request_ctx(mcryptd_req);
- desc = &rctx->desc;
- desc->tfm = child;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
-
- return crypto_ahash_import(mcryptd_req, in);
-}
-
-static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm)
-{
- struct mcryptd_ahash *mcryptd_tfm;
- struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
- struct mcryptd_hash_ctx *mctx;
+ areq = &rctx->areq;

- mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb",
- CRYPTO_ALG_INTERNAL,
- CRYPTO_ALG_INTERNAL);
- if (IS_ERR(mcryptd_tfm))
- return PTR_ERR(mcryptd_tfm);
- mctx = crypto_ahash_ctx(&mcryptd_tfm->base);
- mctx->alg_state = &sha1_mb_alg_state;
- ctx->mcryptd_tfm = mcryptd_tfm;
- crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
- sizeof(struct ahash_request) +
- crypto_ahash_reqsize(&mcryptd_tfm->base));
-
- return 0;
-}
-
-static void sha1_mb_async_exit_tfm(struct crypto_tfm *tfm)
-{
- struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
+ ahash_request_set_tfm(areq, child);
+ ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP,
+ rctx->complete, areq->result);

- mcryptd_free_ahash(ctx->mcryptd_tfm);
+ return crypto_ahash_import(mcryptd_req, in);
}

static struct ahash_alg sha1_mb_async_alg = {
@@ -965,7 +985,7 @@ static int __init sha1_mb_mod_init(void)
}
sha1_mb_alg_state.flusher = &sha1_mb_flusher;

- err = crypto_register_shash(&sha1_mb_shash_alg);
+ err = crypto_register_ahash(&sha1_mb_areq_alg);
if (err)
goto err2;
err = crypto_register_ahash(&sha1_mb_async_alg);
@@ -975,7 +995,7 @@ static int __init sha1_mb_mod_init(void)

return 0;
err1:
- crypto_unregister_shash(&sha1_mb_shash_alg);
+ crypto_unregister_ahash(&sha1_mb_areq_alg);
err2:
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu);
@@ -991,7 +1011,7 @@ static void __exit sha1_mb_mod_fini(void)
struct mcryptd_alg_cstate *cpu_state;

crypto_unregister_ahash(&sha1_mb_async_alg);
- crypto_unregister_shash(&sha1_mb_shash_alg);
+ crypto_unregister_ahash(&sha1_mb_areq_alg);
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
diff --git a/crypto/mcryptd.c b/crypto/mcryptd.c
index c4eb9da..34aa786 100644
--- a/crypto/mcryptd.c
+++ b/crypto/mcryptd.c
@@ -41,7 +41,7 @@ struct mcryptd_flush_list {
static struct mcryptd_flush_list __percpu *mcryptd_flist;

struct hashd_instance_ctx {
- struct crypto_shash_spawn spawn;
+ struct crypto_ahash_spawn spawn;
struct mcryptd_queue *queue;
};

@@ -272,18 +272,18 @@ static int mcryptd_hash_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct hashd_instance_ctx *ictx = crypto_instance_ctx(inst);
- struct crypto_shash_spawn *spawn = &ictx->spawn;
+ struct crypto_ahash_spawn *spawn = &ictx->spawn;
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(tfm);
- struct crypto_shash *hash;
+ struct crypto_ahash *hash;

- hash = crypto_spawn_shash(spawn);
+ hash = crypto_spawn_ahash(spawn);
if (IS_ERR(hash))
return PTR_ERR(hash);

ctx->child = hash;
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct mcryptd_hash_request_ctx) +
- crypto_shash_descsize(hash));
+ crypto_ahash_reqsize(hash));
return 0;
}

@@ -291,21 +291,21 @@ static void mcryptd_hash_exit_tfm(struct crypto_tfm *tfm)
{
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(tfm);

- crypto_free_shash(ctx->child);
+ crypto_free_ahash(ctx->child);
}

static int mcryptd_hash_setkey(struct crypto_ahash *parent,
const u8 *key, unsigned int keylen)
{
struct mcryptd_hash_ctx *ctx = crypto_ahash_ctx(parent);
- struct crypto_shash *child = ctx->child;
+ struct crypto_ahash *child = ctx->child;
int err;

- crypto_shash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
- crypto_shash_set_flags(child, crypto_ahash_get_flags(parent) &
+ crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
+ crypto_ahash_set_flags(child, crypto_ahash_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
- err = crypto_shash_setkey(child, key, keylen);
- crypto_ahash_set_flags(parent, crypto_shash_get_flags(child) &
+ err = crypto_ahash_setkey(child, key, keylen);
+ crypto_ahash_set_flags(parent, crypto_ahash_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
@@ -331,20 +331,19 @@ static int mcryptd_hash_enqueue(struct ahash_request *req,
static void mcryptd_hash_init(struct crypto_async_request *req_async, int err)
{
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(req_async->tfm);
- struct crypto_shash *child = ctx->child;
+ struct crypto_ahash *child = ctx->child;
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
- struct shash_desc *desc = &rctx->desc;
+ struct ahash_request *desc = &rctx->areq;

if (unlikely(err == -EINPROGRESS))
goto out;

- desc->tfm = child;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+ ahash_request_set_tfm(desc, child);
+ ahash_request_set_callback(desc, CRYPTO_TFM_REQ_MAY_SLEEP,
+ rctx->complete, req->result);

- err = crypto_shash_init(desc);
-
- req->base.complete = rctx->complete;
+ err = crypto_ahash_init(desc);

out:
local_bh_disable();
@@ -365,7 +364,8 @@ static void mcryptd_hash_update(struct crypto_async_request *req_async, int err)
if (unlikely(err == -EINPROGRESS))
goto out;

- err = shash_ahash_mcryptd_update(req, &rctx->desc);
+ rctx->out = req->result;
+ err = ahash_mcryptd_update(&rctx->areq);
if (err) {
req->base.complete = rctx->complete;
goto out;
@@ -391,7 +391,8 @@ static void mcryptd_hash_final(struct crypto_async_request *req_async, int err)
if (unlikely(err == -EINPROGRESS))
goto out;

- err = shash_ahash_mcryptd_final(req, &rctx->desc);
+ rctx->out = req->result;
+ err = ahash_mcryptd_final(&rctx->areq);
if (err) {
req->base.complete = rctx->complete;
goto out;
@@ -416,8 +417,8 @@ static void mcryptd_hash_finup(struct crypto_async_request *req_async, int err)

if (unlikely(err == -EINPROGRESS))
goto out;
-
- err = shash_ahash_mcryptd_finup(req, &rctx->desc);
+ rctx->out = req->result;
+ err = ahash_mcryptd_finup(&rctx->areq);

if (err) {
req->base.complete = rctx->complete;
@@ -439,18 +440,19 @@ static int mcryptd_hash_finup_enqueue(struct ahash_request *req)
static void mcryptd_hash_digest(struct crypto_async_request *req_async, int err)
{
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(req_async->tfm);
- struct crypto_shash *child = ctx->child;
+ struct crypto_ahash *child = ctx->child;
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
- struct shash_desc *desc = &rctx->desc;
+ struct ahash_request *desc = &rctx->areq;

if (unlikely(err == -EINPROGRESS))
goto out;

- desc->tfm = child;
- desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; /* check this again */
+ ahash_request_set_tfm(desc, child);
+ ahash_request_set_callback(desc, CRYPTO_TFM_REQ_MAY_SLEEP, NULL, NULL);

- err = shash_ahash_mcryptd_digest(req, desc);
+ rctx->out = req->result;
+ err = ahash_mcryptd_digest(desc);

if (err) {
req->base.complete = rctx->complete;
@@ -473,14 +475,14 @@ static int mcryptd_hash_export(struct ahash_request *req, void *out)
{
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);

- return crypto_shash_export(&rctx->desc, out);
+ return crypto_ahash_export(&rctx->areq, out);
}

static int mcryptd_hash_import(struct ahash_request *req, const void *in)
{
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);

- return crypto_shash_import(&rctx->desc, in);
+ return crypto_ahash_import(&rctx->areq, in);
}

static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
@@ -488,7 +490,7 @@ static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
{
struct hashd_instance_ctx *ctx;
struct ahash_instance *inst;
- struct shash_alg *salg;
+ struct hash_alg_common *halg;
struct crypto_alg *alg;
u32 type = 0;
u32 mask = 0;
@@ -496,11 +498,11 @@ static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,

mcryptd_check_internal(tb, &type, &mask);

- salg = shash_attr_alg(tb[1], type, mask);
- if (IS_ERR(salg))
- return PTR_ERR(salg);
+ halg = ahash_attr_alg(tb[1], type, mask);
+ if (IS_ERR(halg))
+ return PTR_ERR(halg);

- alg = &salg->base;
+ alg = &halg->base;
pr_debug("crypto: mcryptd hash alg: %s\n", alg->cra_name);
inst = mcryptd_alloc_instance(alg, ahash_instance_headroom(),
sizeof(*ctx));
@@ -511,7 +513,7 @@ static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
ctx = ahash_instance_ctx(inst);
ctx->queue = queue;

- err = crypto_init_shash_spawn(&ctx->spawn, salg,
+ err = crypto_init_ahash_spawn(&ctx->spawn, halg,
ahash_crypto_instance(inst));
if (err)
goto out_free_inst;
@@ -521,8 +523,8 @@ static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
type |= CRYPTO_ALG_INTERNAL;
inst->alg.halg.base.cra_flags = type;

- inst->alg.halg.digestsize = salg->digestsize;
- inst->alg.halg.statesize = salg->statesize;
+ inst->alg.halg.digestsize = halg->digestsize;
+ inst->alg.halg.statesize = halg->statesize;
inst->alg.halg.base.cra_ctxsize = sizeof(struct mcryptd_hash_ctx);

inst->alg.halg.base.cra_init = mcryptd_hash_init_tfm;
@@ -539,7 +541,7 @@ static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,

err = ahash_register_instance(tmpl, inst);
if (err) {
- crypto_drop_shash(&ctx->spawn);
+ crypto_drop_ahash(&ctx->spawn);
out_free_inst:
kfree(inst);
}
@@ -575,7 +577,7 @@ static void mcryptd_free(struct crypto_instance *inst)

switch (inst->alg.cra_flags & CRYPTO_ALG_TYPE_MASK) {
case CRYPTO_ALG_TYPE_AHASH:
- crypto_drop_shash(&hctx->spawn);
+ crypto_drop_ahash(&hctx->spawn);
kfree(ahash_instance(inst));
return;
default:
@@ -612,55 +614,38 @@ struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
}
EXPORT_SYMBOL_GPL(mcryptd_alloc_ahash);

-int shash_ahash_mcryptd_digest(struct ahash_request *req,
- struct shash_desc *desc)
+int ahash_mcryptd_digest(struct ahash_request *desc)
{
int err;

- err = crypto_shash_init(desc) ?:
- shash_ahash_mcryptd_finup(req, desc);
+ err = crypto_ahash_init(desc) ?:
+ ahash_mcryptd_finup(desc);

return err;
}
-EXPORT_SYMBOL_GPL(shash_ahash_mcryptd_digest);

-int shash_ahash_mcryptd_update(struct ahash_request *req,
- struct shash_desc *desc)
+int ahash_mcryptd_update(struct ahash_request *desc)
{
- struct crypto_shash *tfm = desc->tfm;
- struct shash_alg *shash = crypto_shash_alg(tfm);
-
/* alignment is to be done by multi-buffer crypto algorithm if needed */

- return shash->update(desc, NULL, 0);
+ return crypto_ahash_update(desc);
}
-EXPORT_SYMBOL_GPL(shash_ahash_mcryptd_update);

-int shash_ahash_mcryptd_finup(struct ahash_request *req,
- struct shash_desc *desc)
+int ahash_mcryptd_finup(struct ahash_request *desc)
{
- struct crypto_shash *tfm = desc->tfm;
- struct shash_alg *shash = crypto_shash_alg(tfm);
-
/* alignment is to be done by multi-buffer crypto algorithm if needed */

- return shash->finup(desc, NULL, 0, req->result);
+ return crypto_ahash_finup(desc);
}
-EXPORT_SYMBOL_GPL(shash_ahash_mcryptd_finup);

-int shash_ahash_mcryptd_final(struct ahash_request *req,
- struct shash_desc *desc)
+int ahash_mcryptd_final(struct ahash_request *desc)
{
- struct crypto_shash *tfm = desc->tfm;
- struct shash_alg *shash = crypto_shash_alg(tfm);
-
/* alignment is to be done by multi-buffer crypto algorithm if needed */

- return shash->final(desc, req->result);
+ return crypto_ahash_final(desc);
}
-EXPORT_SYMBOL_GPL(shash_ahash_mcryptd_final);

-struct crypto_shash *mcryptd_ahash_child(struct mcryptd_ahash *tfm)
+struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm)
{
struct mcryptd_hash_ctx *ctx = crypto_ahash_ctx(&tfm->base);

@@ -668,12 +653,12 @@ struct crypto_shash *mcryptd_ahash_child(struct mcryptd_ahash *tfm)
}
EXPORT_SYMBOL_GPL(mcryptd_ahash_child);

-struct shash_desc *mcryptd_shash_desc(struct ahash_request *req)
+struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req)
{
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
- return &rctx->desc;
+ return &rctx->areq;
}
-EXPORT_SYMBOL_GPL(mcryptd_shash_desc);
+EXPORT_SYMBOL_GPL(mcryptd_ahash_desc);

void mcryptd_free_ahash(struct mcryptd_ahash *tfm)
{
@@ -681,7 +666,6 @@ void mcryptd_free_ahash(struct mcryptd_ahash *tfm)
}
EXPORT_SYMBOL_GPL(mcryptd_free_ahash);

-
static int __init mcryptd_init(void)
{
int err, cpu;
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 49dae16..1d4f365 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -114,14 +114,10 @@ int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);

-int shash_ahash_mcryptd_update(struct ahash_request *req,
- struct shash_desc *desc);
-int shash_ahash_mcryptd_final(struct ahash_request *req,
- struct shash_desc *desc);
-int shash_ahash_mcryptd_finup(struct ahash_request *req,
- struct shash_desc *desc);
-int shash_ahash_mcryptd_digest(struct ahash_request *req,
- struct shash_desc *desc);
+int ahash_mcryptd_update(struct ahash_request *desc);
+int ahash_mcryptd_final(struct ahash_request *desc);
+int ahash_mcryptd_finup(struct ahash_request *desc);
+int ahash_mcryptd_digest(struct ahash_request *desc);

int crypto_init_shash_ops_async(struct crypto_tfm *tfm);

diff --git a/include/crypto/mcryptd.h b/include/crypto/mcryptd.h
index c23ee1f..4a53c0d 100644
--- a/include/crypto/mcryptd.h
+++ b/include/crypto/mcryptd.h
@@ -39,7 +39,7 @@ struct mcryptd_instance_ctx {
};

struct mcryptd_hash_ctx {
- struct crypto_shash *child;
+ struct crypto_ahash *child;
struct mcryptd_alg_state *alg_state;
};

@@ -59,13 +59,13 @@ struct mcryptd_hash_request_ctx {
struct crypto_hash_walk walk;
u8 *out;
int flag;
- struct shash_desc desc;
+ struct ahash_request areq;
};

struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
u32 type, u32 mask);
-struct crypto_shash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
-struct shash_desc *mcryptd_shash_desc(struct ahash_request *req);
+struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
+struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req);
void mcryptd_free_ahash(struct mcryptd_ahash *tfm);
void mcryptd_flusher(struct work_struct *work);

--
1.9.1