pppmibagent.c

这是全套的PPP协议的源码

/* pppMibAgent.c */

/* Copyright 1984-2000 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
--------------------
01b,26aug02,ijm  use Add_Node_From_Root instead of snmpdTreeAdd
01a,09aug02,rp   created
*/

#include <vxWorks.h>
#include <logLib.h>
#include <wrn/wm/snmp/vxagent/snmpdLib.h>

IMPORT MIBNODE_T ppp_lcp_mib;
IMPORT OBJ_ID_T objid_ppp_lcp_mib;

IMPORT MIBNODE_T ppp_security_mib;
IMPORT OBJ_ID_T objid_ppp_security_mib;

IMPORT MIBNODE_T ppp_ipcp_mib;
IMPORT OBJ_ID_T objid_ppp_ipcp_mib ;

/******************************************************************************
*
* ppp_mib_attach - add PPP MIBs dynamically to the main MIB tree
*
* This routine adds the PPP MIBs to the main MIB tree. This allows
* access to the PPP MIBs using the Envoy SNMP manager.  This function
* is called from usrBasicPPPInit before the SNMP agent is initialized.
* After the agent is initialized, SMNP_CoarseLock would need to be taken
* prior to calling Add_Node_From_Root and released immediately after.
*
* RETURNS: OK, or ERROR if Add_Node_From_Root fails.
*
* NOMANUAL
*/


STATUS ppp_mib_attach (void)
    {
    MIBNODE_T *rnode;

    if (Add_Node_From_Root (NULL, &objid_ppp_lcp_mib,
                            &ppp_lcp_mib, &rnode) != OK)
        {
        logMsg ("Could not add PPP LCP MIB\n",1,2,3,4,5,6);
        return (ERROR);
        }

    if (Add_Node_From_Root (NULL, &objid_ppp_security_mib,
                            &ppp_security_mib, &rnode) != OK)
        {
        logMsg ("Could not add PPP SECURITY MIB\n",1,2,3,4,5,6);
        return (ERROR);
        }

    if (Add_Node_From_Root (NULL, &objid_ppp_ipcp_mib,
                            &ppp_ipcp_mib, &rnode) != OK)
        {
        logMsg ("Could not add PPP IPCP MIB\n",1,2,3,4,5,6);
        return (ERROR);
        }

    return (OK);

    }


/******************************************************************************
*
* ppp_mib_detach - remove PPP MIBs from the main MIB tree
*
* This routine removes the PPP MIBs from the main MIB tree after the SNMP
* agent is initialized. This routine will have no effect if nodes
* are non-removable.  Please refer to PPP Release Notes for information on
* how to make PPP nodes removable.
*
* RETURNS: OK, or ERROR if Remove_Node_From_Root fails.
*
* NOMANUAL
*/


STATUS ppp_mib_detach (void)
    {
    MIBNODE_T *rnode;

    ENVOY_SNMP_GET_WRITE_LOCK (SNMP_CoarseLock);
    rnode = Remove_Node_From_Root (NULL, &objid_ppp_lcp_mib);
    ENVOY_SNMP_RELEASE_WRITE_LOCK (SNMP_CoarseLock);

    if (rnode == NULL)
        {
        logMsg ("Could not remove PPP LCP MIB\n",1,2,3,4,5,6);
        return (ERROR);
        }

    ENVOY_SNMP_GET_WRITE_LOCK (SNMP_CoarseLock);
    rnode = Remove_Node_From_Root (NULL, &objid_ppp_security_mib);
    ENVOY_SNMP_RELEASE_WRITE_LOCK (SNMP_CoarseLock);


    if (rnode == NULL)
        {
        logMsg ("Could not remove PPP SECURITY MIB\n",1,2,3,4,5,6);
        return (ERROR);
        }

    ENVOY_SNMP_GET_WRITE_LOCK (SNMP_CoarseLock);
    rnode = Remove_Node_From_Root (NULL, &objid_ppp_ipcp_mib);
    ENVOY_SNMP_RELEASE_WRITE_LOCK (SNMP_CoarseLock);

    if (rnode == NULL)
        {
        logMsg ("Could not remove PPP IPCP MIB\n",1,2,3,4,5,6);
        return (ERROR);
        }

    return (OK);
    }