154 Commits

Author SHA1 Message Date
Dirk Ziegelmeier
7b946fa9b1 SNMP agent rewrite
- SNMPv2c support
  - Greatly reduced RAM usage, no memory pools any more
  - API cleanup
  - MIB2 is separated from SNMP stack
  - Support for multiple MIBs (snmp_set_mibs call) - e.g. for private MIB
  - Improved MIB2 implementation (tcpConnTable etc.)
  - Redesigned simple and generic API for MIB implementation
  - Comfortable node types for scalar arrays and tables
  - Counter64, bit and truthvalue datatype support
  - Callbacks for SNMP writes
  - Runs on two APIs: RAW and netconn
  - Async API is gone - the stack now supports netconn API instead,
    so blocking operations can be done in MIB calls.
    SNMP runs in a worker thread when netconn API is used.
  - Simplified thread sync support for MIBs - useful when MIBs
    need to access variables shared with other threads without locking
    (used in MIB2 to access lwIP stats from lwIP thread)

Currently in work:
  - Traps rewrite
  - MIB compiler
2015-12-26 11:43:29 +01:00
Dirk Ziegelmeier
cacbd596c9 Move some prototypes from snmp_msg.h to snmp.h because they are used by user code 2015-11-14 19:50:57 +01:00
Dirk Ziegelmeier
6203737093 Rename snmp_mib2.h to snmp.h so source compatibility for user netif implementations is preserved 2015-11-12 21:25:42 +01:00
Dirk Ziegelmeier
5f642eb3e3 Completely decouple SNMP stack from lwIP core by using private memory pools;
Move SNMP stack to apps;
API breaking change: Users need to call snmp_init() now!
2015-11-12 21:21:14 +01:00