39 lines
1.8 KiB
Plaintext
39 lines
1.8 KiB
Plaintext
lwIP SNMPv2c agent
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==================
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Based on SNMP stack written by Christiaan Simons <christiaan.simons@axon.tv>
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Rewritten by Martin Hentschel <info@cl-soft.de> and
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Dirk Ziegelmeier <dziegel@gmx.de>
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Features:
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- SNMPv2c support.
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- Low RAM usage - no memory pools, stack only.
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- MIB2 implementation is separated from SNMP stack.
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- Support for multiple MIBs (snmp_set_mibs() call) - e.g. for private MIB.
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- Simple and generic API for MIB implementation.
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- Comfortable node types and helper functions for scalar arrays and tables.
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- Counter64, bit and truthvalue datatype support.
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- Callbacks for SNMP writes e.g. to implement persistency.
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- Runs on two APIs: RAW and netconn.
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- Async API is gone - the stack now supports netconn API instead,
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so blocking operations can be done in MIB calls.
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SNMP runs in a worker thread when netconn API is used.
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- Simplified thread sync support for MIBs - useful when MIBs
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need to access variables shared with other threads where no locking is
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possible. Used in MIB2 to access lwIP stats from lwIP thread.
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MIB compiler (code generator):
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- Written in C#. MIB viewer used Windows Forms.
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- Developed on Windows with Visual Studio 2010.
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- Can be compiled and used under Linux with http://www.monodevelop.com/.
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- Based on a heavily modified version of of SharpSnmpLib (a4bd05c6afb4)
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(https://sharpsnmplib.codeplex.com/SourceControl/network/forks/Nemo157/MIBParserUpdate).
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- MIB parser, C file generation framework and LWIP code generation are cleanly
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separated, which means the code may be useful as a base for code generation
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of other SNMP agents.
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Notes:
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- Stack and MIB compiler were used to implement a Profinet device.
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Compiled/implemented MIBs: LLDP-MIB, LLDP-EXT-DOT3-MIB, LLDP-EXT-PNO-MIB.
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