ipv4interfacetable.c

开发snmp的开发包有两个开放的SNMP开发库

/*
 * Note: this file originally auto-generated by mib2c using
 *       version : 1.48 $ of : mfd-top.m2c,v $ 
 *
 * $Id: ipv4InterfaceTable.c 14169 2006-01-25 16:28:12Z dts12 $
 */
/** \page MFD helper for ipv4InterfaceTable
 *
 * \section intro Introduction
 * Introductory text.
 *
 */
/*
 * standard Net-SNMP includes 
 */
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>

/*
 * include our parent header 
 */
#include "ipv4InterfaceTable.h"

#include <net-snmp/agent/mib_modules.h>

#include "ipv4InterfaceTable_interface.h"

oid             ipv4InterfaceTable_oid[] = { IPV4INTERFACETABLE_OID };
int             ipv4InterfaceTable_oid_size =
OID_LENGTH(ipv4InterfaceTable_oid);

ipv4InterfaceTable_registration ipv4InterfaceTable_user_context;

void            initialize_table_ipv4InterfaceTable(void);
void            shutdown_table_ipv4InterfaceTable(void);


/**
 * Initializes the ipv4InterfaceTable module
 */
void
init_ipv4InterfaceTable(void)
{
    DEBUGMSGTL(("verbose:ipv4InterfaceTable:init_ipv4InterfaceTable",
                "called\n"));

    /*
     * TODO:300:o: Perform ipv4InterfaceTable one-time module initialization.
     */

    /*
     * we depend on the ifTable, so we put our init in with it
     * to guarantee order of execution.
     */
    init_ifTable();

    /*
     * last changed should be 0 at startup
     */
    ipv4InterfaceTable_lastChange_set(0);

}                               /* init_ipv4InterfaceTable */

/**
 * Shut-down the ipv4InterfaceTable module (agent is exiting)
 */
void
shutdown_ipv4InterfaceTable(void)
{
    if (should_init("ipv4InterfaceTable"))
        shutdown_table_ipv4InterfaceTable();

}

/**
 * Initialize the table ipv4InterfaceTable 
 *    (Define its contents and how it's structured)
 */
void
initialize_table_ipv4InterfaceTable(void)
{
    ipv4InterfaceTable_registration *user_context;
    u_long          flags;

    DEBUGMSGTL(("verbose:ipv4InterfaceTable:initialize_table_ipv4InterfaceTable", "called\n"));

    /*
     * TODO:301:o: Perform ipv4InterfaceTable one-time table initialization.
     */

    /*
     * TODO:302:o: |->Initialize ipv4InterfaceTable user context
     * if you'd like to pass in a pointer to some data for this
     * table, allocate or set it up here.
     */
    /*
     * a netsnmp_data_list is a simple way to store void pointers. A simple
     * string token is used to add, find or remove pointers.
     */
    user_context =
        netsnmp_create_data_list("ipv4InterfaceTable", NULL, NULL);

    /*
     * No support for any flags yet, but in the future you would
     * set any flags here.
     */
    flags = 0;

    /*
     * call interface initialization code
     */
    _ipv4InterfaceTable_initialize_interface(user_context, flags);
}                               /* initialize_table_ipv4InterfaceTable */

/**
 * Shutdown the table ipv4InterfaceTable 
 */
void
shutdown_table_ipv4InterfaceTable(void)
{
    /*
     * call interface shutdown code
     */
    _ipv4InterfaceTable_shutdown_interface
        (&ipv4InterfaceTable_user_context);
}

/**
 * extra context initialization (eg default values)
 *
 * @param rowreq_ctx    : row request context
 * @param user_init_ctx : void pointer for user (parameter to rowreq_ctx_allocate)
 *
 * @retval MFD_SUCCESS  : no errors
 * @retval MFD_ERROR    : error (context allocate will fail)
 */
int
ipv4InterfaceTable_rowreq_ctx_init(ipv4InterfaceTable_rowreq_ctx *
                                   rowreq_ctx, void *user_init_ctx)
{
    DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_rowreq_ctx_init", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:210:o: |-> Perform extra ipv4InterfaceTable rowreq initialization. (eg DEFVALS)
     */
    rowreq_ctx->data.ipv4InterfaceRetransmitTime = 1000;


    return MFD_SUCCESS;
}                               /* ipv4InterfaceTable_rowreq_ctx_init */

/**
 * extra context cleanup
 * @param rowreq_ctx
 *
 */
void
ipv4InterfaceTable_rowreq_ctx_cleanup(ipv4InterfaceTable_rowreq_ctx *
                                      rowreq_ctx)
{
    DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_rowreq_ctx_cleanup", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:211:o: |-> Perform extra ipv4InterfaceTable rowreq cleanup.
     */
}                               /* ipv4InterfaceTable_rowreq_ctx_cleanup */

/**
 * pre-request callback
 *
 * @param user_context
 *
 * @retval MFD_SUCCESS              : success.
 * @retval MFD_ERROR                : other error
 */
int
ipv4InterfaceTable_pre_request(ipv4InterfaceTable_registration *
                               user_context)
{
    DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_pre_request", "called\n"));

    /*
     * TODO:510:o: Perform ipv4InterfaceTable pre-request actions.
     */

    return MFD_SUCCESS;
}                               /* ipv4InterfaceTable_pre_request */

/**
 * post-request callback
 *
 * Note:
 *   New rows have been inserted into the container, and
 *   deleted rows have been removed from the container and
 *   released.
 *
 * @param user_context
 * @param rc : MFD_SUCCESS if all requests succeeded
 *
 * @retval MFD_SUCCESS : success.
 * @retval MFD_ERROR   : other error (ignored)
 */
int
ipv4InterfaceTable_post_request(ipv4InterfaceTable_registration *
                                user_context, int rc)
{
    DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_post_request", "called\n"));

    /*
     * TODO:511:o: Perform ipv4InterfaceTable post-request actions.
     */

    /*
     * check to set if any rows were changed.
     */
    if (ipv4InterfaceTable_dirty_get()) {
        /*
         * check if request was successful. If so, this would be
         * a good place to save data to its persistent store.
         */
        if (MFD_SUCCESS == rc) {
            /*
             * save changed rows, if you haven't already
             */
        }

        ipv4InterfaceTable_dirty_set(0);        /* clear table dirty flag */
    }

    return MFD_SUCCESS;
}                               /* ipv4InterfaceTable_post_request */


/**********************************************************************
 **********************************************************************
 ***
 *** Table ipv4InterfaceTable
 ***
 **********************************************************************
 **********************************************************************/
/*
 * IP-MIB::ipv4InterfaceTable is subid 28 of ip.
 * Its status is Current.
 * OID: .1.3.6.1.2.1.4.28, length: 8
 */

/*
 * ---------------------------------------------------------------------
 * * TODO:200:r: Implement ipv4InterfaceTable data context functions.
 */


/*---------------------------------------------------------------------
 * IP-MIB::ipv4InterfaceEntry.ipv4InterfaceReasmMaxSize
 * ipv4InterfaceReasmMaxSize is subid 2 of ipv4InterfaceEntry.
 * Its status is Current, and its access level is ReadOnly.
 * OID: .1.3.6.1.2.1.4.28.1.2
 * Description:
The size of the largest IPv4 datagram which this entity can
            re-assemble from incoming IPv4 fragmented datagrams received
            on this interface.
 *
 * Attributes:
 *   accessible 1     isscalar 0     enums  0      hasdefval 0
 *   readable   1     iscolumn 1     ranges 1      hashint   0
 *   settable   0
 *
 * Ranges:  0 - 65535;
 *
 * Its syntax is INTEGER32 (based on perltype INTEGER32)
 * The net-snmp type is ASN_INTEGER. The C type decl is long (long)
 */
/**
 * Extract the current value of the ipv4InterfaceReasmMaxSize data.
 *
 * Set a value using the data context for the row.
 *
 * @param rowreq_ctx
 *        Pointer to the row request context.
 * @param ipv4InterfaceReasmMaxSize_val_ptr
 *        Pointer to storage for a long variable
 *
 * @retval MFD_SUCCESS         : success
 * @retval MFD_SKIP            : skip this node (no value for now)
 * @retval MFD_ERROR           : Any other error
 */
int
ipv4InterfaceReasmMaxSize_get(ipv4InterfaceTable_rowreq_ctx * rowreq_ctx,
                              long *ipv4InterfaceReasmMaxSize_val_ptr)
{
   /** we should have a non-NULL pointer */
    netsnmp_assert(NULL != ipv4InterfaceReasmMaxSize_val_ptr);


    DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceReasmMaxSize_get",
                "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    if (!
        (rowreq_ctx->data.ifentry->
         ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V4_REASMMAX))
        return MFD_SKIP;

    /*
     * TODO:231:o: |-> Extract the current value of the ipv4InterfaceReasmMaxSize data.
     * copy (* ipv4InterfaceReasmMaxSize_val_ptr ) from rowreq_ctx->data
     */
    (*ipv4InterfaceReasmMaxSize_val_ptr) =
        rowreq_ctx->data.ipv4InterfaceReasmMaxSize;

    return MFD_SUCCESS;
}                               /* ipv4InterfaceReasmMaxSize_get */