[EXT] [RFC PATCH] cryptodev: add basic asymmetric crypto capability structs

[Akhil Goyal]

Hi Arek,

Are you planning for a formal patch for adding asym capabilities?

> This commit adds basic structs to handle asymmetric crypto capability.
> 
> Signed-off-by: Arek Kusztal <arkadiuszx.kusztal at intel.com>
> ---
>  lib/cryptodev/rte_crypto_asym.h | 47 +++++++++++++++++++++++++++++++++
>  lib/cryptodev/rte_cryptodev.h   |  8 ++++++
>  2 files changed, 55 insertions(+)
> 
> diff --git a/lib/cryptodev/rte_crypto_asym.h b/lib/cryptodev/rte_crypto_asym.h
> index cd24d4b07b..2d58fffee5 100644
> --- a/lib/cryptodev/rte_crypto_asym.h
> +++ b/lib/cryptodev/rte_crypto_asym.h
> @@ -386,6 +386,26 @@ struct rte_crypto_rsa_op_param {
>  	 */
>  };
> 
> +struct rte_crypto_rsa_capability {
> +	uint64_t padding_type;
> +	/* Supported padding */
> +	union {
> +		uint64_t hash;
> +		/* Supported hash functions, at least one
> +		 * shall be supported */
> +		uint64_t mgf;
> +		/* Supported masdk generation functions,
> +		 * at least one shall be supported */
> +	} padding;
> +	uint32_t max_key_len;
> +	/* Maximum supported key length */
> +	uint8_t sign_message;
> +	/* If zero input should contain message digest,
> +	 * otherwise it should be plain message */
> +	uint8_t pkcs_plain_padding;
> +	/* PKCS1_5 padding without algorithm identifier */
> +};
> +
>  /**
>   * Diffie-Hellman Operations params.
>   * @note:
> @@ -416,6 +436,19 @@ struct rte_crypto_dh_op_param {
>  	 */
>  };
> 
> +struct rte_crypto_dh_capability {
> +	union {
> +		uint32_t group_size;
> +		/**< Maximum size of underliying mod group */
> +		uint64_t curves;
> +		/**< Supported elliptic curve ids */
> +		/* uint64_t fixed_groups; ? */
> +		/**< Supported fixed groups */
> +		/* uint8_t custom_curves; ? */
> +		/**< Supported custom curves */
> +	};
> +};
> +
>  /**
>   * DSA Operations params
>   *
> @@ -484,6 +517,13 @@ struct rte_crypto_ecdsa_op_param {
>  	 */
>  };
> 
> +struct rte_crypto_ecdsa_capability {
> +	uint64_t curves;
> +	/**< Supported elliptic curve ids */
> +	/* uint8_t custom_curves; ? */
> +	/**< Supported custom curves */
> +};
> +
>  /**
>   * Structure for EC point multiplication operation param
>   */
> @@ -498,6 +538,13 @@ struct rte_crypto_ecpm_op_param {
>  	/**< Scalar to multiply the input point */
>  };
> 
> +struct rte_crypto_ecpm_capability {
> +	uint64_t curves;
> +	/**< Supported elliptic curve ids */
> +	/* uint8_t custom_curves; ? */
> +	/**< Supported custom curves */
> +};
> +
>  /**
>   * Asymmetric crypto transform data
>   *
> diff --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h
> index 45d33f4a50..79026dbb80 100644
> --- a/lib/cryptodev/rte_cryptodev.h
> +++ b/lib/cryptodev/rte_cryptodev.h
> @@ -176,6 +176,14 @@ struct rte_cryptodev_asymmetric_xform_capability {
>  		/**< Range of modulus length supported by modulus based
> xform.
>  		 * Value 0 mean implementation default
>  		 */
> +		struct rte_crypto_ecdsa_capability ecdsa;
> +		/**< ECDSA capability */
> +		struct rte_crypto_ecpm_capability ecpm;
> +		/**< ECPM capability */
> +		struct rte_crypto_rsa_capability rsa;
> +		/**< RSA capability */
> +		struct rte_crypto_dh_capability dh;
> +		/**< DH capability */
>  	};
>  };
> 
> --
> 2.30.2