From b1be70a8c983a5bd12d88181b75d0f550086cb44 Mon Sep 17 00:00:00 2001 From: Zhiqi Song Date: Fri, 9 Sep 2022 17:47:01 +0800 Subject: [PATCH] crypto: hisilicon/hpre - optimize registration of ecdh Use table to store the different ecdh curve configuration, making the registration of ecdh clearer and expansion more convenient. Signed-off-by: Zhiqi Song Signed-off-by: Weili Qian Signed-off-by: Herbert Xu --- drivers/crypto/hisilicon/hpre/hpre_crypto.c | 136 +++++++++++++--------------- 1 file changed, 63 insertions(+), 73 deletions(-) diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c index ad1475f..ac7fabf 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c +++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c @@ -2008,55 +2008,53 @@ static struct kpp_alg dh = { }, }; -static struct kpp_alg ecdh_nist_p192 = { - .set_secret = hpre_ecdh_set_secret, - .generate_public_key = hpre_ecdh_compute_value, - .compute_shared_secret = hpre_ecdh_compute_value, - .max_size = hpre_ecdh_max_size, - .init = hpre_ecdh_nist_p192_init_tfm, - .exit = hpre_ecdh_exit_tfm, - .reqsize = sizeof(struct hpre_asym_request) + HPRE_ALIGN_SZ, - .base = { - .cra_ctxsize = sizeof(struct hpre_ctx), - .cra_priority = HPRE_CRYPTO_ALG_PRI, - .cra_name = "ecdh-nist-p192", - .cra_driver_name = "hpre-ecdh-nist-p192", - .cra_module = THIS_MODULE, - }, -}; - -static struct kpp_alg ecdh_nist_p256 = { - .set_secret = hpre_ecdh_set_secret, - .generate_public_key = hpre_ecdh_compute_value, - .compute_shared_secret = hpre_ecdh_compute_value, - .max_size = hpre_ecdh_max_size, - .init = hpre_ecdh_nist_p256_init_tfm, - .exit = hpre_ecdh_exit_tfm, - .reqsize = sizeof(struct hpre_asym_request) + HPRE_ALIGN_SZ, - .base = { - .cra_ctxsize = sizeof(struct hpre_ctx), - .cra_priority = HPRE_CRYPTO_ALG_PRI, - .cra_name = "ecdh-nist-p256", - .cra_driver_name = "hpre-ecdh-nist-p256", - .cra_module = THIS_MODULE, - }, -}; - -static struct kpp_alg ecdh_nist_p384 = { - .set_secret = hpre_ecdh_set_secret, - .generate_public_key = hpre_ecdh_compute_value, - .compute_shared_secret = hpre_ecdh_compute_value, - .max_size = hpre_ecdh_max_size, - .init = hpre_ecdh_nist_p384_init_tfm, - .exit = hpre_ecdh_exit_tfm, - .reqsize = sizeof(struct hpre_asym_request) + HPRE_ALIGN_SZ, - .base = { - .cra_ctxsize = sizeof(struct hpre_ctx), - .cra_priority = HPRE_CRYPTO_ALG_PRI, - .cra_name = "ecdh-nist-p384", - .cra_driver_name = "hpre-ecdh-nist-p384", - .cra_module = THIS_MODULE, - }, +static struct kpp_alg ecdh_curves[] = { + { + .set_secret = hpre_ecdh_set_secret, + .generate_public_key = hpre_ecdh_compute_value, + .compute_shared_secret = hpre_ecdh_compute_value, + .max_size = hpre_ecdh_max_size, + .init = hpre_ecdh_nist_p192_init_tfm, + .exit = hpre_ecdh_exit_tfm, + .reqsize = sizeof(struct hpre_asym_request) + HPRE_ALIGN_SZ, + .base = { + .cra_ctxsize = sizeof(struct hpre_ctx), + .cra_priority = HPRE_CRYPTO_ALG_PRI, + .cra_name = "ecdh-nist-p192", + .cra_driver_name = "hpre-ecdh-nist-p192", + .cra_module = THIS_MODULE, + }, + }, { + .set_secret = hpre_ecdh_set_secret, + .generate_public_key = hpre_ecdh_compute_value, + .compute_shared_secret = hpre_ecdh_compute_value, + .max_size = hpre_ecdh_max_size, + .init = hpre_ecdh_nist_p256_init_tfm, + .exit = hpre_ecdh_exit_tfm, + .reqsize = sizeof(struct hpre_asym_request) + HPRE_ALIGN_SZ, + .base = { + .cra_ctxsize = sizeof(struct hpre_ctx), + .cra_priority = HPRE_CRYPTO_ALG_PRI, + .cra_name = "ecdh-nist-p256", + .cra_driver_name = "hpre-ecdh-nist-p256", + .cra_module = THIS_MODULE, + }, + }, { + .set_secret = hpre_ecdh_set_secret, + .generate_public_key = hpre_ecdh_compute_value, + .compute_shared_secret = hpre_ecdh_compute_value, + .max_size = hpre_ecdh_max_size, + .init = hpre_ecdh_nist_p384_init_tfm, + .exit = hpre_ecdh_exit_tfm, + .reqsize = sizeof(struct hpre_asym_request) + HPRE_ALIGN_SZ, + .base = { + .cra_ctxsize = sizeof(struct hpre_ctx), + .cra_priority = HPRE_CRYPTO_ALG_PRI, + .cra_name = "ecdh-nist-p384", + .cra_driver_name = "hpre-ecdh-nist-p384", + .cra_module = THIS_MODULE, + }, + } }; static struct kpp_alg curve25519_alg = { @@ -2123,46 +2121,38 @@ static void hpre_unregister_dh(struct hisi_qm *qm) static int hpre_register_ecdh(struct hisi_qm *qm) { - int ret; + int ret, i; if (!hpre_check_alg_support(qm, HPRE_DRV_ECDH_MASK_CAP)) return 0; - ret = crypto_register_kpp(&ecdh_nist_p192); - if (ret) { - dev_err(&qm->pdev->dev, "failed to register ecdh_nist_p192 (%d)!\n", ret); - return ret; - } - - ret = crypto_register_kpp(&ecdh_nist_p256); - if (ret) { - dev_err(&qm->pdev->dev, "failed to register ecdh_nist_p256 (%d)!\n", ret); - goto unregister_ecdh_p192; - } - - ret = crypto_register_kpp(&ecdh_nist_p384); - if (ret) { - dev_err(&qm->pdev->dev, "failed to register ecdh_nist_p384 (%d)!\n", ret); - goto unregister_ecdh_p256; + for (i = 0; i < ARRAY_SIZE(ecdh_curves); i++) { + ret = crypto_register_kpp(&ecdh_curves[i]); + if (ret) { + dev_err(&qm->pdev->dev, "failed to register %s (%d)!\n", + ecdh_curves[i].base.cra_name, ret); + goto unreg_kpp; + } } return 0; -unregister_ecdh_p256: - crypto_unregister_kpp(&ecdh_nist_p256); -unregister_ecdh_p192: - crypto_unregister_kpp(&ecdh_nist_p192); +unreg_kpp: + for (--i; i >= 0; --i) + crypto_unregister_kpp(&ecdh_curves[i]); + return ret; } static void hpre_unregister_ecdh(struct hisi_qm *qm) { + int i; + if (!hpre_check_alg_support(qm, HPRE_DRV_ECDH_MASK_CAP)) return; - crypto_unregister_kpp(&ecdh_nist_p384); - crypto_unregister_kpp(&ecdh_nist_p256); - crypto_unregister_kpp(&ecdh_nist_p192); + for (i = ARRAY_SIZE(ecdh_curves) - 1; i >= 0; --i) + crypto_unregister_kpp(&ecdh_curves[i]); } static int hpre_register_x25519(struct hisi_qm *qm) -- 2.7.4