File content as of revision 0:9e13f7a82739:

/**
* Agentbed library (SNMP)
*  Modified for mbed, 2010 Suga.
*
* Agentuino SNMP Agent Library Prototyping...
*
* Copyright 2010 Eric C. Gionet <lavco_eg@hotmail.com>
*
*/
#include "mbed.h"
#include "Agentbed.h"
#include "EthernetNetIf.h"

EthernetNetIf eth;
AgentbedClass Agentbed;

// RFC1213-MIB OIDs
// .iso (.1)
// .iso.org (.1.3)
// .iso.org.dod (.1.3.6)
// .iso.org.dod.internet (.1.3.6.1)
// .iso.org.dod.internet.mgmt (.1.3.6.1.2)
// .iso.org.dod.internet.mgmt.mib-2 (.1.3.6.1.2.1)
// .iso.org.dod.internet.mgmt.mib-2.system (.1.3.6.1.2.1.1)
// .iso.org.dod.internet.mgmt.mib-2.system.sysDescr (.1.3.6.1.2.1.1.1)
const char sysDescr[]    = "1.3.6.1.2.1.1.1.0";  // read-only  (DisplayString)
// .iso.org.dod.internet.mgmt.mib-2.system.sysObjectID (.1.3.6.1.2.1.1.2)
const char sysObjectID[] = "1.3.6.1.2.1.1.2.0";  // read-only  (ObjectIdentifier)
// .iso.org.dod.internet.mgmt.mib-2.system.sysUpTime (.1.3.6.1.2.1.1.3)
const char sysUpTime[]   = "1.3.6.1.2.1.1.3.0";  // read-only  (TimeTicks)
// .iso.org.dod.internet.mgmt.mib-2.system.sysContact (.1.3.6.1.2.1.1.4)
const char sysContact[]  = "1.3.6.1.2.1.1.4.0";  // read-write (DisplayString)
// .iso.org.dod.internet.mgmt.mib-2.system.sysName (.1.3.6.1.2.1.1.5)
const char sysName[]     = "1.3.6.1.2.1.1.5.0";  // read-write (DisplayString)
// .iso.org.dod.internet.mgmt.mib-2.system.sysLocation (.1.3.6.1.2.1.1.6)
const char sysLocation[] = "1.3.6.1.2.1.1.6.0";  // read-write (DisplayString)
// .iso.org.dod.internet.mgmt.mib-2.system.sysServices (.1.3.6.1.2.1.1.7)
const char sysServices[] = "1.3.6.1.2.1.1.7.0";  // read-only  (Integer)
//
// Arduino defined OIDs
// .iso.org.dod.internet.private (.1.3.6.1.4)
// .iso.org.dod.internet.private.enterprises (.1.3.6.1.4.1)
// .iso.org.dod.internet.private.enterprises.arduino (.1.3.6.1.4.1.36582)
//
//
// RFC1213 local values
static char locDescr[]              = "Agentbed, a light-weight SNMP Agent.";  // read-only (static)
static char locObjectID[]           = "1.3.6.1.4.1.36582";                       // read-only (static)
static uint32_t locUpTime           = 0;                                        // read-only (static)
static char locContact[]            = "<root@weather>";                            // should be stored/read from EEPROM - read/write (not done for simplicity)
static char locName[]               = "weather.mbed";                              // should be stored/read from EEPROM - read/write (not done for simplicity)
static char locLocation[]           = "weather";                        // should be stored/read from EEPROM - read/write (not done for simplicity)
static int32_t locServices          = 7;                                        // read-only (static)

uint32_t prevMillis = 0;
char oid[SNMP_MAX_OID_LEN];
SNMP_API_STAT_CODES api_status;
SNMP_ERR_CODES status;


void pduReceived()
{
  SNMP_PDU pdu;
  //
  api_status = Agentbed.requestPdu(&pdu);
  //
  if ( pdu.type == SNMP_PDU_GET || pdu.type == SNMP_PDU_GET_NEXT || pdu.type == SNMP_PDU_SET
    && pdu.error == SNMP_ERR_NO_ERROR && api_status == SNMP_API_STAT_SUCCESS ) {
    //
    pdu.OID.toString(oid);
    //
    pdu.error = SNMP_ERR_READ_ONLY;
    //
    if ( strcmp(oid, sysDescr ) == 0 ) {
      // handle sysDescr (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locDescr
        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locDescr);
        pdu.error = status;
      }
    } else if ( strcmp(oid, sysObjectID ) == 0 ) {
      // handle sysName (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locUpTime
        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locObjectID);
        pdu.error = status;
      }
    } else if ( strcmp(oid, sysUpTime ) == 0 ) {
      // handle sysName (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locUpTime
        status = pdu.VALUE.encode(SNMP_SYNTAX_TIME_TICKS, locUpTime);
        pdu.error = status;
      }
    } else if ( strcmp(oid, sysName ) == 0 ) {
      // handle sysName (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locName
        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locName);
        pdu.error = status;
      }
    } else if ( strcmp(oid, sysContact ) == 0 ) {
      // handle sysContact (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locContact
        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locContact);
        pdu.error = status;
      }
    } else if ( strcmp(oid, sysLocation ) == 0 ) {
      // handle sysLocation (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locLocation
        status = pdu.VALUE.encode(SNMP_SYNTAX_OCTETS, locLocation);
        pdu.error = status;
      }
    } else if ( strcmp(oid, sysServices) == 0 ) {
      // handle sysServices (set/get) requests
      if ( pdu.type == SNMP_PDU_GET ) {
        // response packet from get-request - locServices
        status = pdu.VALUE.encode(SNMP_SYNTAX_INT, locServices);
        pdu.error = status;
      }
    } else {
      // oid does not exist
      //
      // response packet - object not found
      pdu.error = SNMP_ERR_NO_SUCH_NAME;
    }
    //
    pdu.type = SNMP_PDU_RESPONSE;

    Agentbed.responsePdu(&pdu);
  }
  //
  Agentbed.freePdu(&pdu);
  //
  //Serial << "UDP Packet Received End.." << " RAM:" << freeMemory() << endl;
}




int main ()
{
    EthernetErr r;

    r = eth.setup();
    if (r) {
        printf("Error %d in setup.\n", r);
        return -1;
    }

    api_status = Agentbed.begin(&eth);
    if (api_status != SNMP_API_STAT_SUCCESS) {
        return -1;
    }

    Agentbed.onPduReceive(pduReceived);
    printf("Agentbed\r\n");

    while (1) {
        wait(1);
        locUpTime += 100;
        Net::poll();
    }
}