C++ (Cpp) cryptd_ablkcipher_child示例

示例#1

文件： ablk_helper.c 项目： 18712886438/android_kernel_motorola_quark

int __ablk_encrypt(struct ablkcipher_request *req)
{
	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
	struct blkcipher_desc desc;

	desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
	desc.info = req->info;
	desc.flags = 0;

	return crypto_blkcipher_crt(desc.tfm)->encrypt(
		&desc, req->dst, req->src, req->nbytes);
}

示例#2

static int ablk_decrypt(struct ablkcipher_request *req)
{
	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
	struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);

	if (!irq_fpu_usable()) {
		struct ablkcipher_request *cryptd_req =
			ablkcipher_request_ctx(req);
		memcpy(cryptd_req, req, sizeof(*req));
		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
		return crypto_ablkcipher_decrypt(cryptd_req);
	} else {
		struct blkcipher_desc desc;
		desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
		desc.info = req->info;
		desc.flags = 0;
		return crypto_blkcipher_crt(desc.tfm)->decrypt(
			&desc, req->dst, req->src, req->nbytes);
	}
}

示例#3

文件： ablk_helper.c 项目： 0-T-0/ps4-linux

int ablk_decrypt(struct ablkcipher_request *req)
{
	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);

	if (!may_use_simd()) {
		struct ablkcipher_request *cryptd_req =
			ablkcipher_request_ctx(req);

		*cryptd_req = *req;
		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);

		return crypto_ablkcipher_decrypt(cryptd_req);
	} else {
		struct blkcipher_desc desc;

		desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
		desc.info = req->info;
		desc.flags = 0;

		return crypto_blkcipher_crt(desc.tfm)->decrypt(
			&desc, req->dst, req->src, req->nbytes);
	}
}