pkcs11: Use create_object_attr_enumerator to encode RSA public key.

diff --git a/src/libstrongswan/plugins/pkcs11/pkcs11_public_key.c b/src/libstrongswan/plugins/pkcs11/pkcs11_public_key.c
index 0cb56e1909d2a15824d4fd7422921a98d3e9414d..65bf54bc0b60a3e04b03a2baac77b06994c21112 100644 (file)
--- a/src/libstrongswan/plugins/pkcs11/pkcs11_public_key.c
+++ b/src/libstrongswan/plugins/pkcs11/pkcs11_public_key.c
@@ -178,35 +178,25 @@ METHOD(public_key_t, encrypt, bool,
 static bool encode_rsa(private_pkcs11_public_key_t *this,
                                        cred_encoding_type_t type, void *cache, chunk_t *encoding)
 {
-       CK_RV rv;
+       enumerator_t *enumerator;
        bool success = FALSE;
-       chunk_t n, e;
        CK_ATTRIBUTE attr[] = {
                {CKA_MODULUS, NULL, 0},
                {CKA_PUBLIC_EXPONENT, NULL, 0},
        };
 
-       rv = this->lib->f->C_GetAttributeValue(this->session, this->object,
-                                                                                  attr, countof(attr));
-       if (rv != CKR_OK ||
-               attr[0].ulValueLen == 0 || attr[0].ulValueLen == -1 ||
-               attr[1].ulValueLen == 0 || attr[1].ulValueLen == -1)
-       {
-               return FALSE;
-       }
-       attr[0].pValue = malloc(attr[0].ulValueLen);
-       attr[1].pValue = malloc(attr[1].ulValueLen);
-       rv = this->lib->f->C_GetAttributeValue(this->session, this->object,
-                                                                                  attr, countof(attr));
-       if (rv == CKR_OK)
+       enumerator = this->lib->create_object_attr_enumerator(this->lib,
+                                                       this->session, this->object, attr, countof(attr));
+       if (enumerator && enumerator->enumerate(enumerator, NULL) &&
+               attr[0].ulValueLen > 0 && attr[1].ulValueLen > 0)
        {
+               chunk_t n, e;
                n = chunk_create(attr[0].pValue, attr[0].ulValueLen);
                e = chunk_create(attr[1].pValue, attr[1].ulValueLen);
                success = lib->encoding->encode(lib->encoding, type, cache, encoding,
                        CRED_PART_RSA_MODULUS, n, CRED_PART_RSA_PUB_EXP, e, CRED_PART_END);
        }
-       free(attr[0].pValue);
-       free(attr[1].pValue);
+       DESTROY_IF(enumerator);
        return success;
 }