[dpdk-dev] [PATCH v2 2/4] cryptodev: add algorithm string parsers

[Pablo de Lara]

Adds functions to get the cipher/authentication
algorithm enums, given a string. This is useful for applications
which gets the algorithm required from the user, to have a common
string-enum mapping.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
Acked-by: Fiona Trahe <fiona.trahe at intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 lib/librte_cryptodev/rte_cryptodev.c           | 34 ++++++++++++++++++++++++++
 lib/librte_cryptodev/rte_cryptodev.h           | 30 +++++++++++++++++++++++
 lib/librte_cryptodev/rte_cryptodev_version.map |  8 ++++++
 3 files changed, 72 insertions(+)

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index fedb9d0..f15f65b 100644
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -187,6 +187,40 @@ rte_crypto_auth_algorithm_strings[] = {
 	[RTE_CRYPTO_AUTH_ZUC_EIA3]	= "zuc-eia3"
 };
 
+int
+rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
+		const char *algo_string)
+{
+	unsigned int i;
+
+	for (i = 1; i < RTE_DIM(rte_crypto_cipher_algorithm_strings); i++) {
+		if (strcmp(algo_string, rte_crypto_cipher_algorithm_strings[i]) == 0) {
+			*algo_enum = (enum rte_crypto_cipher_algorithm) i;
+			return 0;
+		}
+	}
+
+	/* Invalid string */
+	return -1;
+}
+
+int
+rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
+		const char *algo_string)
+{
+	unsigned int i;
+
+	for (i = 1; i < RTE_DIM(rte_crypto_auth_algorithm_strings); i++) {
+		if (strcmp(algo_string, rte_crypto_auth_algorithm_strings[i]) == 0) {
+			*algo_enum = (enum rte_crypto_auth_algorithm) i;
+			return 0;
+		}
+	}
+
+	/* Invalid string */
+	return -1;
+}
+
 /**
  * The crypto auth operation strings identifiers.
  * It could be used in application command line.
diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
index 82f3bc3..d61a43e 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -234,6 +234,36 @@ rte_cryptodev_sym_capability_check_auth(
 		const struct rte_cryptodev_symmetric_capability *capability,
 		uint16_t key_size, uint16_t digest_size, uint16_t aad_size);
 
+/**
+ * Provide the cipher algorithm enum, given an algorithm string
+ *
+ * @param	algo_enum	A pointer to the cipher algorithm
+ *				enum to be filled
+ * @param	algo_string	Authentication algo string
+ *
+ * @return
+ * - Return -1 if string is not valid
+ * - Return 0 is the string is valid
+ */
+int
+rte_cryptodev_get_cipher_algo_enum(enum rte_crypto_cipher_algorithm *algo_enum,
+		const char *algo_string);
+
+/**
+ * Provide the authentication algorithm enum, given an algorithm string
+ *
+ * @param	algo_enum	A pointer to the authentication algorithm
+ *				enum to be filled
+ * @param	algo_string	Authentication algo string
+ *
+ * @return
+ * - Return -1 if string is not valid
+ * - Return 0 is the string is valid
+ */
+int
+rte_cryptodev_get_auth_algo_enum(enum rte_crypto_auth_algorithm *algo_enum,
+		const char *algo_string);
+
 /** Macro used at end of crypto PMD list */
 #define RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST() \
 	{ RTE_CRYPTO_OP_TYPE_UNDEFINED }
diff --git a/lib/librte_cryptodev/rte_cryptodev_version.map b/lib/librte_cryptodev/rte_cryptodev_version.map
index 238bf13..831a15c 100644
--- a/lib/librte_cryptodev/rte_cryptodev_version.map
+++ b/lib/librte_cryptodev/rte_cryptodev_version.map
@@ -64,3 +64,11 @@ DPDK_17.02 {
 	rte_crypto_cipher_operation_strings;
 
 } DPDK_16.11;
+
+DPDK_17.05 {
+	global:
+
+	rte_cryptodev_get_auth_algo_enum;
+	rte_cryptodev_get_cipher_algo_enum;
+
+} DPDK_17.02;
-- 
2.7.4