Where are the SaveConfigFile and GetConfigFile?

Hello,

I saw the SaveConfigFile and GetConfigFile are used in the function defined in the file CcspTr069Pa/source-embedded/DslhManagementServer/ccsp_management_server.c

int CcspManagementServer_RetrievePassword( int parameterID, char *pInputFile, char *pOutputString );

int CcspManagementServer_StoreMGMTServerPasswordValuesintoDB( char *pString, int parameterID );

but I do not see SaveConfigFile and GetConfigFile, both on the RPI image and source code.

Do you know where are these two files? Thank you!