transform: Add a getter for the enum_names for a specific transform type

src/libstrongswan/crypto/transform.c

@@ -14,6 +14,8 @@
  */
 
 #include <crypto/transform.h>
+#include <crypto/hashers/hasher.h>
+#include <crypto/rngs/rng.h>
 
 ENUM_BEGIN(transform_type_names, UNDEFINED_TRANSFORM_TYPE, COMPRESSION_ALGORITHM,
 	"UNDEFINED_TRANSFORM_TYPE",
@@ -34,3 +36,33 @@ ENUM(extended_sequence_numbers_names, NO_EXT_SEQ_NUMBERS, EXT_SEQ_NUMBERS,
 	"NO_EXT_SEQ",
 	"EXT_SEQ",
 );
+
+
+/**
+ * See header
+ */
+enum_name_t* transform_get_enum_names(transform_type_t type)
+{
+	switch (type)
+	{
+		case HASH_ALGORITHM:
+			return hash_algorithm_names;
+		case RANDOM_NUMBER_GENERATOR:
+			return rng_quality_names;
+		case AEAD_ALGORITHM:
+		case ENCRYPTION_ALGORITHM:
+			return encryption_algorithm_names;
+		case PSEUDO_RANDOM_FUNCTION:
+			return pseudo_random_function_names;
+		case INTEGRITY_ALGORITHM:
+			return integrity_algorithm_names;
+		case DIFFIE_HELLMAN_GROUP:
+			return diffie_hellman_group_names;
+		case EXTENDED_SEQUENCE_NUMBERS:
+			return extended_sequence_numbers_names;
+		case UNDEFINED_TRANSFORM_TYPE:
+		case COMPRESSION_ALGORITHM:
+			break;
+	}
+	return NULL;
+}

src/libstrongswan/crypto/transform.h

@@ -46,6 +46,14 @@ enum transform_type_t {
  */
 extern enum_name_t *transform_type_names;
 
+/**
+ * Get the enum names for a specific transform type.
+ *
+ * @param type		type of transform to get enum names for
+ * @return			enum names
+ */
+enum_name_t *transform_get_enum_names(transform_type_t type);
+
 /**
  * Extended sequence numbers, as in IKEv2 RFC 3.3.2.
  */