Contents of the SMA for Developers

SMA includes the following content for developers:

• Developer tools, and Perl modules needed by the tools

• API libraries for using Net-SNMP functions

• API library for using the Entity MIB functions

• Demo modules, for demonstrating how to implement some types of data modeling

In addition, you can install the SUNWsmaS package, which contains the source code for Net-SNMP. See the Solaris System Management Agent Administration Guide for installation instructions.

File Locations of Developer Files

The developer files are installed in the locations that are shown in the following table.

Table 1–1 File Locations for Developer Content

Directory	Developer Content
/usr/demo/sma_snmp	Sample modules for demonstration purposes. See Demonstration Modules for more information.
/usr/sfw/bin	Command line tools that are useful for developers. For more information on these tools, see SMA Tools.
/usr/sfw/sbin	Executable files for the snmpd agent daemon and snmptrapd trap daemon, which provide the SNMP services.
/usr/sfw/lib	The 32-bit shared libraries that contain the API functions from Net-SNMP, and the libentity.so library, which defines functions for using the Entity MIB. This directory is supplied on all Solaris platforms. See API Libraries for more information.
/usr/sfw/lib/sparcv9	The 64-bit shared libraries that contain the API functions from Net-SNMP, and the libentity.so library, which defines functions for using the Entity MIB. This directory is supplied only on 64-bit Solaris on SPARC® platforms. See API Libraries for more information.
/usr/sfw/include	Header files needed by API libraries.
/usr/sfw/doc/sma_snmp/html	HTML documentation for Net-SNMP API functions.
/etc/sma/snmp	Configuration files that are used by the mib2c tool.
/etc/sma/snmp/mibs	The MIBs supported by the System Management Agent.
/usr/perl5/vendor_perl/5.8.3/sun4-solaris-64int	Perl modules needed by the mib2c tool.
/usr/share/sma_snmp	Source code for Net-SNMP. The code is provided in the SUNWsmaS package, which is not installed by default during Solaris installation. The package must be installed manually from the Solaris media. For instructions for installing the SUNWsmaS package, see the Solaris System Management Agent Administration Guide.

SMA Tools

The SMA includes many command-line tools, which are described in the sma_snmp(5) man page.

Each tool has an associated man page. Links to all the man pages for the product are included in Appendix A, SMA Resources. The tools are located in /usr/sfw/bin.

The snmp commands can be used to query the agent to test your modules. Read the man pages for detailed usage information.

API Libraries

The following API libraries are included with the SMA product:

• libnetsnmp

• libnetsnmpagent

• libnetsnmpmibs

• libnetsnmphelpers

• libentity

The libentity library is not part of Net-SNMP, but is a customization for the SMA product.

On SPARC platforms, the 32–bit Net-SNMP libraries are contained in the /usr/sfw/lib directory. The 64–bit Net-SNMP libraries are contained in the /usr/sfw/lib/sparcv9 subdirectory.

On x86 platforms, only the 32–bit Net-SNMP libraries are available in the /usr/sfw/lib directory.

The functions contained in the Net-SNMP libraries are used in the MIB modules that you create, as well as in the agent. Documentation from Net-SNMP for using the API functions is contained in /usr/sfw/doc/sma_snmp/html.

The SMA includes the same Net-SNMP API functions that are available with the open source Net-SNMP agent. API Functions includes a list of functions that are certified to work with the System Management Agent.

Demonstration Modules

The /usr/demo/sma_snmp directory contains several demonstration modules. The demo modules illustrate methods for creating modules to solve various kinds of information-gathering problems. Later chapters in this manual discuss the demo modules in detail. The following table lists and describes the demo modules. The table also provides cross-references to the sections that discuss the demos.

Table 1–2 Descriptions of Demonstration Modules

Module Name	Demonstrates	Discussed in Section
demo_module_1	Data modeling for scalar objects	Scalar Objects
demo_module_2	Data modeling for a simple table with writable objects	Simple Tables
demo_module_3	Data modeling for a general table	General Tables
demo_module_4	Implementing alarms	demo_module_4 Code Example for Alarms
demo_module_5	Persistence of module data across agent restarts	demo_module_5 Code Example for Persistent Data
demo_module_6	Running multiple instances of a module on a single host	Implementing Multiple Instances of a Module
demo_module_7	Dynamically updating multi-instance modules	Enabling Dynamic Updates to a Multiple Instance Module
demo_module_8	Implementing a module as an AgentX subagent	Deploying a Module as a Subagent
demo_module_9	Implementing objects that wait for external events without blocking the agent	SNMP Alarm Method for Data Collection
demo_module_10	Module design that handles long running data collections so that their values can be polled by an SNMP manager	SNMP Manager Polling Method for Data Collection
demo_module_11	How to use the Entity MIB API functions	SMA Entity MIB Implementation
demo_module_12	How use Solstice Enterprise Agents code templates and SMA code templates to help re-implement Solstice Enterprise Agents subagents as SMA modules	Migrating Solstice Enterprise Agent Subagents to SMA

Technical Support for Developers

Technical support for developers of modules for the System Management Agent is provided through the Net-SNMP open source community at http://www.net-snmp.org. You might find the developers discussion mailing list net-snmp-coders@lists.sourceforge.net to be helpful. An archive for the mailing list is located at http://sourceforge.net/mailarchive/forum.php?forum_id=7152.