[v5,3/4] cryptodev: add asymmetric capability
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Commit Message
From: Sunila Sahu <sunila.sahu@caviumnetworks.com>
Extend cryptodev with asymmetric capability APIs and
definitions.
Signed-off-by: Shally Verma <shally.verma@caviumnetworks.com>
Signed-off-by: Sunila Sahu <sunila.sahu@caviumnetworks.com>
Signed-off-by: Ashish Gupta <ashish.gupta@caviumnetworks.com>
Signed-off-by: Umesh Kartha <umesh.kartha@caviumnetworks.com>
---
lib/librte_cryptodev/rte_cryptodev.c | 76 ++++++++++++++++++
lib/librte_cryptodev/rte_cryptodev.h | 103 ++++++++++++++++++++++++-
lib/librte_cryptodev/rte_cryptodev_version.map | 9 ++-
3 files changed, 185 insertions(+), 3 deletions(-)
@@ -242,6 +242,24 @@ rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
return -1;
}
+int __rte_experimental
+rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
+ const char *xform_string)
+{
+ unsigned int i;
+
+ for (i = 1; i < RTE_DIM(rte_crypto_asym_xform_strings); i++) {
+ if (strcmp(xform_string,
+ rte_crypto_asym_xform_strings[i]) == 0) {
+ *xform_enum = (enum rte_crypto_asym_xform_type) i;
+ return 0;
+ }
+ }
+
+ /* Invalid string */
+ return -1;
+}
+
/**
* The crypto auth operation strings identifiers.
* It could be used in application command line.
@@ -312,6 +330,28 @@ param_range_check(uint16_t size, const struct rte_crypto_param_range *range)
return -1;
}
+const struct rte_cryptodev_asymmetric_xform_capability * __rte_experimental
+rte_cryptodev_asym_capability_get(uint8_t dev_id,
+ const struct rte_cryptodev_asym_capability_idx *idx)
+{
+ const struct rte_cryptodev_capabilities *capability;
+ struct rte_cryptodev_info dev_info;
+ unsigned int i = 0;
+
+ memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));
+ rte_cryptodev_info_get(dev_id, &dev_info);
+
+ while ((capability = &dev_info.capabilities[i++])->op !=
+ RTE_CRYPTO_OP_TYPE_UNDEFINED) {
+ if (capability->op != RTE_CRYPTO_OP_TYPE_ASYMMETRIC)
+ continue;
+
+ if (capability->asym.xform_capa.xform_type == idx->type)
+ return &capability->asym.xform_capa;
+ }
+ return NULL;
+};
+
int
rte_cryptodev_sym_capability_check_cipher(
const struct rte_cryptodev_symmetric_capability *capability,
@@ -363,6 +403,42 @@ rte_cryptodev_sym_capability_check_aead(
return 0;
}
+int __rte_experimental
+rte_cryptodev_asym_xform_capability_check_optype(
+ const struct rte_cryptodev_asymmetric_xform_capability *capability,
+ enum rte_crypto_asym_op_type op_type)
+{
+ if (capability->op_types & (1 << op_type))
+ return 1;
+
+ return 0;
+}
+
+int __rte_experimental
+rte_cryptodev_asym_xform_capability_check_modlen(
+ const struct rte_cryptodev_asymmetric_xform_capability *capability,
+ uint16_t modlen)
+{
+ /* no need to check for limits, if min or max = 0 */
+ if (capability->modlen.min != 0) {
+ if (modlen < capability->modlen.min)
+ return -1;
+ }
+
+ if (capability->modlen.max != 0) {
+ if (modlen > capability->modlen.max)
+ return -1;
+ }
+
+ /* in any case, check if given modlen is module increment */
+ if (capability->modlen.increment != 0) {
+ if (modlen % (capability->modlen.increment))
+ return -1;
+ }
+
+ return 0;
+}
+
const char *
rte_cryptodev_get_feature_name(uint64_t flag)
@@ -143,6 +143,35 @@ struct rte_cryptodev_symmetric_capability {
};
};
+/**
+ * Asymmetric Xform Crypto Capability
+ *
+ */
+struct rte_cryptodev_asymmetric_xform_capability {
+ enum rte_crypto_asym_xform_type xform_type;
+ /**< Transform type: RSA/MODEXP/DH/DSA/MODINV */
+
+ uint32_t op_types;
+ /**< bitmask for supported rte_crypto_asym_op_type */
+
+ __extension__
+ union {
+ struct rte_crypto_param_range modlen;
+ /**< Range of modulus length supported by modulus based xform.
+ * Value 0 mean implementation default
+ */
+ };
+};
+
+/**
+ * Asymmetric Crypto Capability
+ *
+ */
+struct rte_cryptodev_asymmetric_capability {
+ struct rte_cryptodev_asymmetric_xform_capability xform_capa;
+};
+
+
/** Structure used to capture a capability of a crypto device */
struct rte_cryptodev_capabilities {
enum rte_crypto_op_type op;
@@ -152,6 +181,8 @@ struct rte_cryptodev_capabilities {
union {
struct rte_cryptodev_symmetric_capability sym;
/**< Symmetric operation capability parameters */
+ struct rte_cryptodev_asymmetric_capability asym;
+ /**< Asymmetric operation capability parameters */
};
};
@@ -166,7 +197,17 @@ struct rte_cryptodev_sym_capability_idx {
};
/**
- * Provide capabilities available for defined device and algorithm
+ * Structure used to describe asymmetric crypto xforms
+ * Each xform maps to one asym algorithm.
+ *
+ */
+struct rte_cryptodev_asym_capability_idx {
+ enum rte_crypto_asym_xform_type type;
+ /**< Asymmetric xform (algo) type */
+};
+
+/**
+ * Provide capabilities available for defined device and algorithm
*
* @param dev_id The identifier of the device.
* @param idx Description of crypto algorithms.
@@ -180,6 +221,20 @@ rte_cryptodev_sym_capability_get(uint8_t dev_id,
const struct rte_cryptodev_sym_capability_idx *idx);
/**
+ * Provide capabilities available for defined device and xform
+ *
+ * @param dev_id The identifier of the device.
+ * @param idx Description of asym crypto xform.
+ *
+ * @return
+ * - Return description of the asymmetric crypto capability if exist.
+ * - Return NULL if the capability not exist.
+ */
+const struct rte_cryptodev_asymmetric_xform_capability * __rte_experimental
+rte_cryptodev_asym_capability_get(uint8_t dev_id,
+ const struct rte_cryptodev_asym_capability_idx *idx);
+
+/**
* Check if key size and initial vector are supported
* in crypto cipher capability
*
@@ -235,6 +290,36 @@ rte_cryptodev_sym_capability_check_aead(
uint16_t iv_size);
/**
+ * Check if op type is supported
+ *
+ * @param capability Description of the asymmetric crypto capability.
+ * @param op_type op type
+ *
+ * @return
+ * - Return 1 if the op type is supported
+ * - Return 0 if unsupported
+ */
+int __rte_experimental
+rte_cryptodev_asym_xform_capability_check_optype(
+ const struct rte_cryptodev_asymmetric_xform_capability *capability,
+ enum rte_crypto_asym_op_type op_type);
+
+/**
+ * Check if modulus length is in supported range
+ *
+ * @param capability Description of the asymmetric crypto capability.
+ * @param modlen modulus length.
+ *
+ * @return
+ * - Return 0 if the parameters are in range of the capability.
+ * - Return -1 if the parameters are out of range of the capability.
+ */
+int __rte_experimental
+rte_cryptodev_asym_xform_capability_check_modlen(
+ const struct rte_cryptodev_asymmetric_xform_capability *capability,
+ uint16_t modlen);
+
+/**
* Provide the cipher algorithm enum, given an algorithm string
*
* @param algo_enum A pointer to the cipher algorithm
@@ -279,6 +364,22 @@ int
rte_cryptodev_get_aead_algo_enum(enum rte_crypto_aead_algorithm *algo_enum,
const char *algo_string);
+/**
+ * Provide the Asymmetric xform enum, given an xform string
+ *
+ * @param xform_enum A pointer to the xform type
+ * enum to be filled
+ * @param xform_string xform string
+ *
+ * @return
+ * - Return -1 if string is not valid
+ * - Return 0 if the string is valid
+ */
+int __rte_experimental
+rte_cryptodev_asym_get_xform_enum(enum rte_crypto_asym_xform_type *xform_enum,
+ const char *xform_string);
+
+
/** Macro used at end of crypto PMD list */
#define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
{ RTE_CRYPTO_OP_TYPE_UNDEFINED }
@@ -91,12 +91,17 @@ DPDK_18.05 {
EXPERIMENTAL {
global:
+ rte_cryptodev_asym_capability_get;
rte_cryptodev_asym_get_header_session_size;
rte_cryptodev_asym_get_private_session_size;
+ rte_cryptodev_asym_get_xform_enum;
rte_cryptodev_asym_session_clear;
rte_cryptodev_asym_session_create;
rte_cryptodev_asym_session_free;
rte_cryptodev_asym_session_init;
- rte_cryptodev_sym_session_get_user_data;
- rte_cryptodev_sym_session_set_user_data;
+ rte_cryptodev_asym_xform_capability_check_optype;
+ rte_cryptodev_sym_session_get_private_data;
+ rte_cryptodev_sym_session_set_private_data;
+ rte_crypto_asym_op_strings;
+ rte_crypto_asym_xform_strings;
};