This document contains a quick reference for the API callback interface for the yp-system component in the netconfd-pro server.
The netconfd-pro server supports an external vendor library that is loaded at boot-time by the server, similar to a SIL for a YANG module. This library code is run in the context of the main server process. It is used to hook vendor-specific functions into the server,.
The following tasks are supported by the yp-system library interface:
yp-system External Interface : Creating and using the general system SIL library
YP-HA Interface : Provide an external controller for changing the YP-HA server role
Access Control Model Interface : Provide an external access control system instead of NACM
SYSLOG Interface : Provide an external syslog interface instead of the Linux API
System Callback Functions : Provide server callbacks not specific to a single YANG module
The default system library is located in called libyp_system.so, and
it is located in the library path, such as
There is an example yp-system library in the 'libsystem' directory
of the YumaPro source tree. This file in the 'src' directory called
example-system.c contains some stub code showing how this library
Copy and Setup the libsystem subtree
The default library created by building libsystem is
This is not the correct filename, in order to prevent the real yp-server library
from being overwritten by the empty example library, if “make install” is run.
The 'libsystem' subtree should be copied to your own development area and modified.
# # to make a real library, copy this directory contents # to a new location and change yp-system-example to yp_system # in the SUBDIR_NM macro below # # SUBDIR_NM=yp_system # SUBDIR_NM=yp_system-example
Change the string
yp-system in the
src/Makefile in the copy of libsystem.