};
struct cryptd_queue {
- struct cryptd_cpu_queue *cpu_queue;
+ struct cryptd_cpu_queue __percpu *cpu_queue;
};
struct cryptd_instance_ctx {
struct cryptd_cpu_queue *cpu_queue;
cpu = get_cpu();
- cpu_queue = per_cpu_ptr(queue->cpu_queue, cpu);
+ cpu_queue = this_cpu_ptr(queue->cpu_queue);
err = crypto_enqueue_request(&cpu_queue->queue, request);
queue_work_on(cpu, kcrypto_wq, &cpu_queue->work);
put_cpu();
crypto_free_blkcipher(ctx->child);
}
-static struct crypto_instance *cryptd_alloc_instance(struct crypto_alg *alg,
- unsigned int tail)
+static void *cryptd_alloc_instance(struct crypto_alg *alg, unsigned int head,
+ unsigned int tail)
{
+ char *p;
struct crypto_instance *inst;
int err;
- inst = kzalloc(sizeof(*inst) + tail, GFP_KERNEL);
- if (!inst) {
- inst = ERR_PTR(-ENOMEM);
- goto out;
- }
+ p = kzalloc(head + sizeof(*inst) + tail, GFP_KERNEL);
+ if (!p)
+ return ERR_PTR(-ENOMEM);
+
+ inst = (void *)(p + head);
err = -ENAMETOOLONG;
if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
inst->alg.cra_alignmask = alg->cra_alignmask;
out:
- return inst;
+ return p;
out_free_inst:
- kfree(inst);
- inst = ERR_PTR(err);
+ kfree(p);
+ p = ERR_PTR(err);
goto out;
}
if (IS_ERR(alg))
return PTR_ERR(alg);
- inst = cryptd_alloc_instance(alg, sizeof(*ctx));
+ inst = cryptd_alloc_instance(alg, 0, sizeof(*ctx));
+ err = PTR_ERR(inst);
if (IS_ERR(inst))
goto out_put_alg;
return cryptd_hash_enqueue(req, cryptd_hash_final);
}
+static void cryptd_hash_finup(struct crypto_async_request *req_async, int err)
+{
+ struct ahash_request *req = ahash_request_cast(req_async);
+ struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+
+ if (unlikely(err == -EINPROGRESS))
+ goto out;
+
+ err = shash_ahash_finup(req, &rctx->desc);
+
+ req->base.complete = rctx->complete;
+
+out:
+ local_bh_disable();
+ rctx->complete(&req->base, err);
+ local_bh_enable();
+}
+
+static int cryptd_hash_finup_enqueue(struct ahash_request *req)
+{
+ return cryptd_hash_enqueue(req, cryptd_hash_finup);
+}
+
static void cryptd_hash_digest(struct crypto_async_request *req_async, int err)
{
struct cryptd_hash_ctx *ctx = crypto_tfm_ctx(req_async->tfm);
return cryptd_hash_enqueue(req, cryptd_hash_digest);
}
+static int cryptd_hash_export(struct ahash_request *req, void *out)
+{
+ struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+
+ return crypto_shash_export(&rctx->desc, out);
+}
+
+static int cryptd_hash_import(struct ahash_request *req, const void *in)
+{
+ struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+
+ return crypto_shash_import(&rctx->desc, in);
+}
+
static int cryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
struct cryptd_queue *queue)
{
struct hashd_instance_ctx *ctx;
- struct crypto_instance *inst;
+ struct ahash_instance *inst;
struct shash_alg *salg;
struct crypto_alg *alg;
int err;
return PTR_ERR(salg);
alg = &salg->base;
- inst = cryptd_alloc_instance(alg, sizeof(*ctx));
+ inst = cryptd_alloc_instance(alg, ahash_instance_headroom(),
+ sizeof(*ctx));
+ err = PTR_ERR(inst);
if (IS_ERR(inst))
goto out_put_alg;
- ctx = crypto_instance_ctx(inst);
+ ctx = ahash_instance_ctx(inst);
ctx->queue = queue;
- err = crypto_init_shash_spawn(&ctx->spawn, salg, inst);
+ err = crypto_init_shash_spawn(&ctx->spawn, salg,
+ ahash_crypto_instance(inst));
if (err)
goto out_free_inst;
- inst->alg.cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC;
- inst->alg.cra_type = &crypto_ahash_type;
+ inst->alg.halg.base.cra_flags = CRYPTO_ALG_ASYNC;
- inst->alg.cra_ahash.digestsize = salg->digestsize;
- inst->alg.cra_ctxsize = sizeof(struct cryptd_hash_ctx);
+ inst->alg.halg.digestsize = salg->digestsize;
+ inst->alg.halg.base.cra_ctxsize = sizeof(struct cryptd_hash_ctx);
- inst->alg.cra_init = cryptd_hash_init_tfm;
- inst->alg.cra_exit = cryptd_hash_exit_tfm;
+ inst->alg.halg.base.cra_init = cryptd_hash_init_tfm;
+ inst->alg.halg.base.cra_exit = cryptd_hash_exit_tfm;
- inst->alg.cra_ahash.init = cryptd_hash_init_enqueue;
- inst->alg.cra_ahash.update = cryptd_hash_update_enqueue;
- inst->alg.cra_ahash.final = cryptd_hash_final_enqueue;
- inst->alg.cra_ahash.setkey = cryptd_hash_setkey;
- inst->alg.cra_ahash.digest = cryptd_hash_digest_enqueue;
+ inst->alg.init = cryptd_hash_init_enqueue;
+ inst->alg.update = cryptd_hash_update_enqueue;
+ inst->alg.final = cryptd_hash_final_enqueue;
+ inst->alg.finup = cryptd_hash_finup_enqueue;
+ inst->alg.export = cryptd_hash_export;
+ inst->alg.import = cryptd_hash_import;
+ inst->alg.setkey = cryptd_hash_setkey;
+ inst->alg.digest = cryptd_hash_digest_enqueue;
- err = crypto_register_instance(tmpl, inst);
+ err = ahash_register_instance(tmpl, inst);
if (err) {
crypto_drop_shash(&ctx->spawn);
out_free_inst:
static void cryptd_free(struct crypto_instance *inst)
{
struct cryptd_instance_ctx *ctx = crypto_instance_ctx(inst);
+ struct hashd_instance_ctx *hctx = crypto_instance_ctx(inst);
+
+ switch (inst->alg.cra_flags & CRYPTO_ALG_TYPE_MASK) {
+ case CRYPTO_ALG_TYPE_AHASH:
+ crypto_drop_shash(&hctx->spawn);
+ kfree(ahash_instance(inst));
+ return;
+ }
crypto_drop_spawn(&ctx->spawn);
kfree(inst);
}
EXPORT_SYMBOL_GPL(cryptd_free_ablkcipher);
+struct cryptd_ahash *cryptd_alloc_ahash(const char *alg_name,
+ u32 type, u32 mask)
+{
+ char cryptd_alg_name[CRYPTO_MAX_ALG_NAME];
+ struct crypto_ahash *tfm;
+
+ if (snprintf(cryptd_alg_name, CRYPTO_MAX_ALG_NAME,
+ "cryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
+ return ERR_PTR(-EINVAL);
+ tfm = crypto_alloc_ahash(cryptd_alg_name, type, mask);
+ if (IS_ERR(tfm))
+ return ERR_CAST(tfm);
+ if (tfm->base.__crt_alg->cra_module != THIS_MODULE) {
+ crypto_free_ahash(tfm);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return __cryptd_ahash_cast(tfm);
+}
+EXPORT_SYMBOL_GPL(cryptd_alloc_ahash);
+
+struct crypto_shash *cryptd_ahash_child(struct cryptd_ahash *tfm)
+{
+ struct cryptd_hash_ctx *ctx = crypto_ahash_ctx(&tfm->base);
+
+ return ctx->child;
+}
+EXPORT_SYMBOL_GPL(cryptd_ahash_child);
+
+struct shash_desc *cryptd_shash_desc(struct ahash_request *req)
+{
+ struct cryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
+ return &rctx->desc;
+}
+EXPORT_SYMBOL_GPL(cryptd_shash_desc);
+
+void cryptd_free_ahash(struct cryptd_ahash *tfm)
+{
+ crypto_free_ahash(&tfm->base);
+}
+EXPORT_SYMBOL_GPL(cryptd_free_ahash);
+
static int __init cryptd_init(void)
{
int err;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff