@brief Handles an SSH service request
@param session current session handler
@param service name of the service (e.g. "ssh-userauth") requested
@param userdata Userdata to be passed to the callback function.
@returns 0 if the request is to be allowed
@returns -1 if the request should not be allowed
@brief Handles an SSH service request @param session current session handler @param service name of the service (e.g. "ssh-userauth") requested @param userdata Userdata to be passed to the callback function. @returns 0 if the request is to be allowed @returns -1 if the request should not be allowed