crypto: engine - Move crypto_engine_ops from request into crypto_alg
Rather than having the callback in the request, move it into the crypto_alg object. This avoids having crypto_engine look into the request context is private to the driver. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
parent
c1091e2bae
commit
e5e7eb023f
@ -7,20 +7,30 @@
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* Author: Baolin Wang <baolin.wang@linaro.org>
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*/
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#include <crypto/aead.h>
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#include <crypto/akcipher.h>
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#include <crypto/hash.h>
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#include <crypto/internal/aead.h>
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#include <crypto/internal/akcipher.h>
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#include <crypto/internal/engine.h>
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#include <crypto/kpp.h>
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#include <crypto/skcipher.h>
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#include <crypto/internal/hash.h>
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#include <crypto/internal/kpp.h>
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#include <crypto/internal/skcipher.h>
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#include <linux/err.h>
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <uapi/linux/sched/types.h>
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#include "internal.h"
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#define CRYPTO_ENGINE_MAX_QLEN 10
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/* Temporary algorithm flag used to indicate an updated driver. */
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#define CRYPTO_ALG_ENGINE 0x200
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struct crypto_engine_alg {
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struct crypto_alg base;
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struct crypto_engine_op op;
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};
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/**
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* crypto_finalize_request - finalize one request if the request is done
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* @engine: the hardware engine
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@ -64,6 +74,8 @@ static void crypto_pump_requests(struct crypto_engine *engine,
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bool in_kthread)
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{
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struct crypto_async_request *async_req, *backlog;
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struct crypto_engine_alg *alg;
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struct crypto_engine_op *op;
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unsigned long flags;
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bool was_busy = false;
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int ret;
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@ -137,15 +149,22 @@ start_request:
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}
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}
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if (async_req->tfm->__crt_alg->cra_flags & CRYPTO_ALG_ENGINE) {
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alg = container_of(async_req->tfm->__crt_alg,
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struct crypto_engine_alg, base);
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op = &alg->op;
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} else {
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enginectx = crypto_tfm_ctx(async_req->tfm);
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op = &enginectx->op;
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if (!enginectx->op.do_one_request) {
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if (!op->do_one_request) {
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dev_err(engine->dev, "failed to do request\n");
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ret = -EINVAL;
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goto req_err_1;
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}
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}
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ret = enginectx->op.do_one_request(engine, async_req);
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ret = op->do_one_request(engine, async_req);
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/* Request unsuccessfully executed by hardware */
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if (ret < 0) {
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@ -556,5 +575,177 @@ int crypto_engine_exit(struct crypto_engine *engine)
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}
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EXPORT_SYMBOL_GPL(crypto_engine_exit);
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int crypto_engine_register_aead(struct aead_engine_alg *alg)
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{
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if (!alg->op.do_one_request)
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return -EINVAL;
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alg->base.base.cra_flags |= CRYPTO_ALG_ENGINE;
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return crypto_register_aead(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_aead);
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void crypto_engine_unregister_aead(struct aead_engine_alg *alg)
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{
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crypto_unregister_aead(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_aead);
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int crypto_engine_register_aeads(struct aead_engine_alg *algs, int count)
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{
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int i, ret;
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for (i = 0; i < count; i++) {
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ret = crypto_engine_register_aead(&algs[i]);
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if (ret)
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goto err;
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}
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return 0;
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err:
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crypto_engine_unregister_aeads(algs, i);
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return ret;
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_aeads);
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void crypto_engine_unregister_aeads(struct aead_engine_alg *algs, int count)
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{
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int i;
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for (i = count - 1; i >= 0; --i)
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crypto_engine_unregister_aead(&algs[i]);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_aeads);
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int crypto_engine_register_ahash(struct ahash_engine_alg *alg)
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{
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if (!alg->op.do_one_request)
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return -EINVAL;
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alg->base.halg.base.cra_flags |= CRYPTO_ALG_ENGINE;
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return crypto_register_ahash(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_ahash);
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void crypto_engine_unregister_ahash(struct ahash_engine_alg *alg)
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{
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crypto_unregister_ahash(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_ahash);
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int crypto_engine_register_ahashes(struct ahash_engine_alg *algs, int count)
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{
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int i, ret;
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for (i = 0; i < count; i++) {
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ret = crypto_engine_register_ahash(&algs[i]);
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if (ret)
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goto err;
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}
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return 0;
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err:
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crypto_engine_unregister_ahashes(algs, i);
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return ret;
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_ahashes);
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void crypto_engine_unregister_ahashes(struct ahash_engine_alg *algs,
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int count)
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{
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int i;
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for (i = count - 1; i >= 0; --i)
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crypto_engine_unregister_ahash(&algs[i]);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_ahashes);
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int crypto_engine_register_akcipher(struct akcipher_engine_alg *alg)
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{
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if (!alg->op.do_one_request)
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return -EINVAL;
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alg->base.base.cra_flags |= CRYPTO_ALG_ENGINE;
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return crypto_register_akcipher(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_akcipher);
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void crypto_engine_unregister_akcipher(struct akcipher_engine_alg *alg)
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{
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crypto_unregister_akcipher(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_akcipher);
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int crypto_engine_register_kpp(struct kpp_engine_alg *alg)
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{
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if (!alg->op.do_one_request)
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return -EINVAL;
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alg->base.base.cra_flags |= CRYPTO_ALG_ENGINE;
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return crypto_register_kpp(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_kpp);
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void crypto_engine_unregister_kpp(struct kpp_engine_alg *alg)
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{
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crypto_unregister_kpp(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_kpp);
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int crypto_engine_register_skcipher(struct skcipher_engine_alg *alg)
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{
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if (!alg->op.do_one_request)
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return -EINVAL;
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alg->base.base.cra_flags |= CRYPTO_ALG_ENGINE;
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return crypto_register_skcipher(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_skcipher);
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void crypto_engine_unregister_skcipher(struct skcipher_engine_alg *alg)
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{
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return crypto_unregister_skcipher(&alg->base);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_skcipher);
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int crypto_engine_register_skciphers(struct skcipher_engine_alg *algs,
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int count)
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{
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int i, ret;
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for (i = 0; i < count; i++) {
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ret = crypto_engine_register_skcipher(&algs[i]);
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if (ret)
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goto err;
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}
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return 0;
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err:
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crypto_engine_unregister_skciphers(algs, i);
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return ret;
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}
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EXPORT_SYMBOL_GPL(crypto_engine_register_skciphers);
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void crypto_engine_unregister_skciphers(struct skcipher_engine_alg *algs,
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int count)
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{
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int i;
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for (i = count - 1; i >= 0; --i)
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crypto_engine_unregister_skcipher(&algs[i]);
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}
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EXPORT_SYMBOL_GPL(crypto_engine_unregister_skciphers);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Crypto hardware engine framework");
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@ -7,15 +7,15 @@
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#ifndef _CRYPTO_ENGINE_H
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#define _CRYPTO_ENGINE_H
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#include <crypto/aead.h>
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#include <crypto/akcipher.h>
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#include <crypto/hash.h>
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#include <crypto/kpp.h>
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#include <crypto/skcipher.h>
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#include <linux/types.h>
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struct aead_request;
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struct ahash_request;
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struct akcipher_request;
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struct crypto_engine;
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struct device;
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struct kpp_request;
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struct skcipher_request;
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/*
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* struct crypto_engine_op - crypto hardware engine operations
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@ -30,6 +30,31 @@ struct crypto_engine_ctx {
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struct crypto_engine_op op;
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};
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struct aead_engine_alg {
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struct aead_alg base;
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struct crypto_engine_op op;
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};
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struct ahash_engine_alg {
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struct ahash_alg base;
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struct crypto_engine_op op;
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};
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struct akcipher_engine_alg {
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struct akcipher_alg base;
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struct crypto_engine_op op;
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};
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struct kpp_engine_alg {
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struct kpp_alg base;
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struct crypto_engine_op op;
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};
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struct skcipher_engine_alg {
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struct skcipher_alg base;
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struct crypto_engine_op op;
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};
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int crypto_transfer_aead_request_to_engine(struct crypto_engine *engine,
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struct aead_request *req);
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int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
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@ -59,4 +84,28 @@ struct crypto_engine *crypto_engine_alloc_init_and_set(struct device *dev,
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bool rt, int qlen);
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int crypto_engine_exit(struct crypto_engine *engine);
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int crypto_engine_register_aead(struct aead_engine_alg *alg);
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void crypto_engine_unregister_aead(struct aead_engine_alg *alg);
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int crypto_engine_register_aeads(struct aead_engine_alg *algs, int count);
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void crypto_engine_unregister_aeads(struct aead_engine_alg *algs, int count);
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int crypto_engine_register_ahash(struct ahash_engine_alg *alg);
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void crypto_engine_unregister_ahash(struct ahash_engine_alg *alg);
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int crypto_engine_register_ahashes(struct ahash_engine_alg *algs, int count);
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void crypto_engine_unregister_ahashes(struct ahash_engine_alg *algs,
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int count);
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int crypto_engine_register_akcipher(struct akcipher_engine_alg *alg);
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void crypto_engine_unregister_akcipher(struct akcipher_engine_alg *alg);
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int crypto_engine_register_kpp(struct kpp_engine_alg *alg);
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void crypto_engine_unregister_kpp(struct kpp_engine_alg *alg);
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int crypto_engine_register_skcipher(struct skcipher_engine_alg *alg);
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void crypto_engine_unregister_skcipher(struct skcipher_engine_alg *alg);
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int crypto_engine_register_skciphers(struct skcipher_engine_alg *algs,
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int count);
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void crypto_engine_unregister_skciphers(struct skcipher_engine_alg *algs,
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int count);
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#endif /* _CRYPTO_ENGINE_H */
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