Accept NULL auth_cfg_t passed to credential_manager_t.get_private()

src/conftest/hooks/rebuild_auth.c

@@ -58,7 +58,6 @@ static bool rebuild_auth(private_rebuild_auth_t *this, ike_sa_t *ike_sa,
 	enumerator_t *enumerator;
 	chunk_t octets, auth_data;
 	private_key_t *private;
-	auth_cfg_t *auth;
 	payload_t *payload;
 	auth_payload_t *auth_payload;
 	auth_method_t auth_method;
@@ -91,10 +90,8 @@ static bool rebuild_auth(private_rebuild_auth_t *this, ike_sa_t *ike_sa,
 	id = identification_create_from_encoding(data.ptr[4], chunk_skip(data, 8));
 	generator->destroy(generator);
 
-	auth = auth_cfg_create();
 	private = lib->credmgr->get_private(lib->credmgr, KEY_ANY,
-										this->id ?: id, auth);
-	auth->destroy(auth);
+										this->id ?: id, NULL);
 	if (private == NULL)
 	{
 		DBG1(DBG_CFG, "no private key found for '%Y' to rebuild AUTH",

src/libcharon/plugins/stroke/stroke_list.c

@@ -685,15 +685,12 @@ static void list_public_key(public_key_t *public, FILE *out)
 	private_key_t *private = NULL;
 	chunk_t keyid;
 	identification_t *id;
-	auth_cfg_t *auth;
 
 	if (public->get_fingerprint(public, KEYID_PUBKEY_SHA1, &keyid))
 	{
 		id = identification_create_from_encoding(ID_KEY_ID, keyid);
-		auth = auth_cfg_create();
 		private = lib->credmgr->get_private(lib->credmgr,
-									public->get_type(public), id, auth);
-		auth->destroy(auth);
+									public->get_type(public), id, NULL);
 		id->destroy(id);
 	}
 

src/libstrongswan/credentials/credential_manager.c

@@ -1047,42 +1047,45 @@ METHOD(credential_manager_t, get_private, private_key_t*,
 		}
 	}
 
-	/* if a specific certificate is preferred, check for a matching key */
-	cert = auth->get(auth, AUTH_RULE_SUBJECT_CERT);
-	if (cert)
+	if (auth)
 	{
-		private = get_private_by_cert(this, cert, type);
-		if (private)
+		/* if a specific certificate is preferred, check for a matching key */
+		cert = auth->get(auth, AUTH_RULE_SUBJECT_CERT);
+		if (cert)
 		{
-			trustchain = build_trustchain(this, cert, auth);
-			if (trustchain)
+			private = get_private_by_cert(this, cert, type);
+			if (private)
 			{
-				auth->merge(auth, trustchain, FALSE);
-				trustchain->destroy(trustchain);
+				trustchain = build_trustchain(this, cert, auth);
+				if (trustchain)
+				{
+					auth->merge(auth, trustchain, FALSE);
+					trustchain->destroy(trustchain);
+				}
+				return private;
 			}
-			return private;
 		}
-	}
 
-	/* try to build a trust chain for each certificate found */
-	enumerator = create_cert_enumerator(this, CERT_ANY, type, id, FALSE);
-	while (enumerator->enumerate(enumerator, &cert))
-	{
-		private = get_private_by_cert(this, cert, type);
-		if (private)
+		/* try to build a trust chain for each certificate found */
+		enumerator = create_cert_enumerator(this, CERT_ANY, type, id, FALSE);
+		while (enumerator->enumerate(enumerator, &cert))
 		{
-			trustchain = build_trustchain(this, cert, auth);
-			if (trustchain)
+			private = get_private_by_cert(this, cert, type);
+			if (private)
 			{
-				auth->merge(auth, trustchain, FALSE);
-				trustchain->destroy(trustchain);
-				break;
+				trustchain = build_trustchain(this, cert, auth);
+				if (trustchain)
+				{
+					auth->merge(auth, trustchain, FALSE);
+					trustchain->destroy(trustchain);
+					break;
+				}
+				private->destroy(private);
+				private = NULL;
 			}
-			private->destroy(private);
-			private = NULL;
 		}
+		enumerator->destroy(enumerator);
 	}
-	enumerator->destroy(enumerator);
 
 	/* if no valid trustchain was found, fall back to the first usable cert */
 	if (!private)
@@ -1093,7 +1096,10 @@ METHOD(credential_manager_t, get_private, private_key_t*,
 			private = get_private_by_cert(this, cert, type);
 			if (private)
 			{
-				auth->add(auth, AUTH_RULE_SUBJECT_CERT, cert->get_ref(cert));
+				if (auth)
+				{
+					auth->add(auth, AUTH_RULE_SUBJECT_CERT, cert->get_ref(cert));
+				}
 				break;
 			}
 		}