1 files changed, 4 insertions, 0 deletions
diff --git a/ckcapi.c b/ckcapi.c
index b032c13..b0967a6 100644
--- a/ckcapi.c
+++ b/ckcapi.c
@@ -312,6 +312,7 @@ CC_C_Finalize(CK_VOID_PTR pReserved)
 {
 	ENTER(C_Finalize);
 	PREREQ(cryptoki_initialized, CKR_CRYPTOKI_NOT_INITIALIZED);
+	PREREQ(!pReserved, CKR_ARGUMENTS_BAD);
 
 	cryptoki_initialized = 0;
 
@@ -552,6 +553,8 @@ CC_C_OpenSession(CK_SLOT_ID id, CK_FLAGS flags, CK_VOID_PTR application,
 
 	ENTER(C_OpenSession);
 	PREREQ(cryptoki_initialized, CKR_CRYPTOKI_NOT_INITIALIZED);
+	PREREQ(session, CKR_ARGUMENTS_BAD);
+	PREREQ(flags & CKF_SERIAL_SESSION, CKR_SESSION_PARALLEL_NOT_SUPPORTED);
 
 	if(!ckcapi_token_is_valid(id)) 
 		RETURN(CKR_SLOT_ID_INVALID);
@@ -632,6 +635,7 @@ CC_C_GetSessionInfo(CK_SESSION_HANDLE session, CK_SESSION_INFO_PTR info)
 {
 	ENTER(C_GetSessionInfo);
 	PREREQ(cryptoki_initialized, CKR_CRYPTOKI_NOT_INITIALIZED);
+	PREREQ(info, CKR_ARGUMENTS_BAD);
 
 	// TODO: Implement
 	RETURN(CKR_FUNCTION_NOT_SUPPORTED);