Fwd: query in mib2c

Janki Chhatbar <[email protected]> Tue, 25 Nov 2014 15:58:07 +0530

Newsgroups	gmane.network.net-snmp.user
Message-ID	<CAHeQesepcTj9x8DFGenO2qO3gAurFmcvwjXdHjBYLNEa8+hP1A@mail.gmail.com>

Hi

I am working on net-snmp since past few days. I want lldpLocChassisId from
Q-BRIDGE-MIB.

I have added the mib and able to translate the OIDs.

Now I want to do get.

I did mib2c -c mib2c.scalar.conf lldpdLocalSystemData. lldpLocSystemData.c
and lldpLocSystemData.h files are generated in the folder /agent/mibgroup

I ran ./configure --with-mib-modules"lldpLocSystemData", make and sudo make
install

lldpLocSystemData.o and lldpLocSystemData.lo files are generated.

When I do snmpget -v 2c -c public localhost Q-BRIDGE-MIB::
lldpLocChassisId, I get unidentified object error.

When I run gcc lldpLocSsytemData.c -c lldpLocSystemData.o, it gives
undefined reference to functions snmp_get_do_debugging, debugmsgtoken,
debugmsg, netsnmp_create_handle_registration, netsnmp_register_scalar,
snmp_set_var_typed_value, snmp_log.

Can anyone please help me? I am attaching .c and .h files




Janki Chhatbar
M.Tech (Embedded Systems)
Nirma University
(+91) 9409239106

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lldpLocalSystemData.h (text/x-chdr, 859 B)

/*
 * Note: this file originally auto-generated by mib2c using
 *        $
 */
#ifndef LLDPLOCALSYSTEMDATA_H
#define LLDPLOCALSYSTEMDATA_H

#ifdef __cplus
extern "C" {
#endif

config_require(Q-BRIDGE-MIB/lldpLocalSystemData)
config_add_mib(Q-BRIDGE-MIB)

#include <net-snmp/varbind_api.h>

/* function declarations */
void init_lldpLocalSystemData(void);
Netsnmp_Node_Handler handle_lldpLocChassisIdSubtype;
Netsnmp_Node_Handler handle_lldpLocChassisId;
Netsnmp_Node_Handler handle_lldpLocSysName;
Netsnmp_Node_Handler handle_lldpLocSysDesc;
Netsnmp_Node_Handler handle_lldpLocSysCapSupported;
Netsnmp_Node_Handler handle_lldpLocSysCapEnabled;
NETSNMP_IMPORT void debugmsg(const char *token, const char *format,...);
NETSNMP_IMPORT void debugmsgtoken(const char *token, const char *format,...);
#ifdef __cplusplus
}
#endif

#endif /* LLDPLOCALSYSTEMDATA_H */

lldpLocalSystemData.c (text/x-csrc, 9.1 KB)

/*
 * Note: this file originally auto-generated by mib2c using
 *        $
 */

#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "lldpLocalSystemData.h"
#include <net-snmp/varbind_api.h>
#include <net-snmp/library/snmp_debug.h>

static u_long chassis_id_subtype = 4;

/** Initializes the lldpLocalSystemData module */
void
init_lldpLocalSystemData(void)
{
    const oid lldpLocChassisIdSubtype_oid[] = { 1,0,8802,1,1,2,1,3,1 };
    const oid lldpLocChassisId_oid[] = { 1,0,8802,1,1,2,1,3,2 };
    const oid lldpLocSysName_oid[] = { 1,0,8802,1,1,2,1,3,3 };
    const oid lldpLocSysDesc_oid[] = { 1,0,8802,1,1,2,1,3,4 };
    const oid lldpLocSysCapSupported_oid[] = { 1,0,8802,1,1,2,1,3,5 };
    const oid lldpLocSysCapEnabled_oid[] = { 1,0,8802,1,1,2,1,3,6 };

 // DEBUGMSGTL(("lldpLocalSystemData", "Initializing\n"));

    netsnmp_register_scalar(
        netsnmp_create_handler_registration("lldpLocChassisIdSubtype", handle_lldpLocChassisIdSubtype,
                               lldpLocChassisIdSubtype_oid, OID_LENGTH(lldpLocChassisIdSubtype_oid),
                               HANDLER_CAN_RONLY
        ));
    netsnmp_register_scalar(
        netsnmp_create_handler_registration("lldpLocChassisId", handle_lldpLocChassisId,
                               lldpLocChassisId_oid, OID_LENGTH(lldpLocChassisId_oid),
                               HANDLER_CAN_RONLY
        ));
    netsnmp_register_scalar(
        netsnmp_create_handler_registration("lldpLocSysName", handle_lldpLocSysName,
                               lldpLocSysName_oid, OID_LENGTH(lldpLocSysName_oid),
                               HANDLER_CAN_RONLY
        ));
    netsnmp_register_scalar(
        netsnmp_create_handler_registration("lldpLocSysDesc", handle_lldpLocSysDesc,
                               lldpLocSysDesc_oid, OID_LENGTH(lldpLocSysDesc_oid),
                               HANDLER_CAN_RONLY
        ));
    netsnmp_register_scalar(
        netsnmp_create_handler_registration("lldpLocSysCapSupported", handle_lldpLocSysCapSupported,
                               lldpLocSysCapSupported_oid, OID_LENGTH(lldpLocSysCapSupported_oid),
                               HANDLER_CAN_RONLY
        ));
    netsnmp_register_scalar(
        netsnmp_create_handler_registration("lldpLocSysCapEnabled", handle_lldpLocSysCapEnabled,
                               lldpLocSysCapEnabled_oid, OID_LENGTH(lldpLocSysCapEnabled_oid),
                               HANDLER_CAN_RONLY
        ));
}

int
handle_lldpLocChassisIdSubtype(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */
    
    switch(reqinfo->mode) {

        case MODE_GET:
            snmp_set_var_typed_value(requests->requestvb, ASN_INTEGER,(u_char *) &chassis_id_subtype
                                     /* XXX: a pointer to the scalar's data */,sizeof(chassis_id_subtype)
                                     /* XXX: the length of the data in bytes */);
            break;


        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_lldpLocChassisIdSubtype\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}
int
handle_lldpLocChassisId(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */
    
    switch(reqinfo->mode) {

        case MODE_GET:
            snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,"12345"
                                     /* XXX: a pointer to the scalar's data */,strlen("12345")
                                     /* XXX: the length of the data in bytes */);
            break;


        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_lldpLocChassisId\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}
int
handle_lldpLocSysName(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */
    
    switch(reqinfo->mode) {

        case MODE_GET:
            snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,"linuxpc"
                                     /* XXX: a pointer to the scalar's data */,strlen("linuxpc")
                                     /* XXX: the length of the data in bytes */);
            break;


        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_lldpLocSysName\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}
int
handle_lldpLocSysDesc(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */
    
    switch(reqinfo->mode) {

        case MODE_GET:
            snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,"2gb"
                                     /* XXX: a pointer to the scalar's data */,strlen("2gb")
                                     /* XXX: the length of the data in bytes */);
            break;


        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_lldpLocSysDesc\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}
int
handle_lldpLocSysCapSupported(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */
    
    switch(reqinfo->mode) {

        case MODE_GET:
            snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,"3"
                                     /* XXX: a pointer to the scalar's data */,strlen("3")
                                     /* XXX: the length of the data in bytes */);
            break;


        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_lldpLocSysCapSupported\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}
int
handle_lldpLocSysCapEnabled(netsnmp_mib_handler *handler,
                          netsnmp_handler_registration *reginfo,
                          netsnmp_agent_request_info   *reqinfo,
                          netsnmp_request_info         *requests)
{
    /* We are never called for a GETNEXT if it's registered as a
       "instance", as it's "magically" handled for us.  */

    /* a instance handler also only hands us one request at a time, so
       we don't need to loop over a list of requests; we'll only get one. */
    
    switch(reqinfo->mode) {

        case MODE_GET:
            snmp_set_var_typed_value(requests->requestvb, ASN_OCTET_STR,"3"
                                     /* XXX: a pointer to the scalar's data */,strlen("3")
                                     /* XXX: the length of the data in bytes */);
            break;


        default:
            /* we should never get here, so this is a really bad error */
            snmp_log(LOG_ERR, "unknown mode (%d) in handle_lldpLocSysCapEnabled\n", reqinfo->mode );
            return SNMP_ERR_GENERR;
    }

    return SNMP_ERR_NOERROR;
}