tcpconnectiontable.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: tcpConnectionTable.c 14169 2006-01-25 16:28:12Z dts12 $
 */
/** \page MFD helper for tcpConnectionTable
 *
 * \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 "tcpConnectionTable.h"

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

#include "tcpConnectionTable_interface.h"

oid             tcpConnectionTable_oid[] = { TCPCONNECTIONTABLE_OID };
int             tcpConnectionTable_oid_size =
OID_LENGTH(tcpConnectionTable_oid);

tcpConnectionTable_registration tcpConnectionTable_user_context;

void            initialize_table_tcpConnectionTable(void);
void            shutdown_table_tcpConnectionTable(void);


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

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

    /*
     * here we initialize all the tables we're planning on supporting
     */
    if (should_init("tcpConnectionTable"))
        initialize_table_tcpConnectionTable();

}                               /* init_tcpConnectionTable */

/**
 * Shut-down the tcpConnectionTable module (agent is exiting)
 */
void
shutdown_tcpConnectionTable(void)
{
    if (should_init("tcpConnectionTable"))
        shutdown_table_tcpConnectionTable();

}

/**
 * Initialize the table tcpConnectionTable 
 *    (Define its contents and how it's structured)
 */
void
initialize_table_tcpConnectionTable(void)
{
    tcpConnectionTable_registration *user_context;
    u_long          flags;

    DEBUGMSGTL(("verbose:tcpConnectionTable:initialize_table_tcpConnectionTable", "called\n"));

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

    /*
     * TODO:302:o: |->Initialize tcpConnectionTable user context
     * if you'd like to pass in a pointer to some data for this
     * table, allocate or set it up here.
     */
    user_context = &tcpConnectionTable_user_context;

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

    /*
     * call interface initialization code
     */
    _tcpConnectionTable_initialize_interface(user_context, flags);
}                               /* initialize_table_tcpConnectionTable */

/**
 * Shutdown the table tcpConnectionTable 
 */
void
shutdown_table_tcpConnectionTable(void)
{
    /*
     * call interface shutdown code
     */
    _tcpConnectionTable_shutdown_interface
        (&tcpConnectionTable_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
tcpConnectionTable_rowreq_ctx_init(tcpConnectionTable_rowreq_ctx *
                                   rowreq_ctx, void *user_init_ctx)
{
    DEBUGMSGTL(("verbose:tcpConnectionTable:tcpConnectionTable_rowreq_ctx_init", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:210:o: |-> Perform extra tcpConnectionTable rowreq initialization. (eg DEFVALS)
     */

    return MFD_SUCCESS;
}                               /* tcpConnectionTable_rowreq_ctx_init */

/**
 * extra context cleanup
 *
 */
void
tcpConnectionTable_rowreq_ctx_cleanup(tcpConnectionTable_rowreq_ctx *
                                      rowreq_ctx)
{
    DEBUGMSGTL(("verbose:tcpConnectionTable:tcpConnectionTable_rowreq_ctx_cleanup", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    /*
     * TODO:211:o: |-> Perform extra tcpConnectionTable rowreq cleanup.
     */
}                               /* tcpConnectionTable_rowreq_ctx_cleanup */

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

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

    return MFD_SUCCESS;
}                               /* tcpConnectionTable_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
tcpConnectionTable_post_request(tcpConnectionTable_registration *
                                user_context, int rc)
{
    DEBUGMSGTL(("verbose:tcpConnectionTable:tcpConnectionTable_post_request", "called\n"));

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

    /*
     * check to set if any rows were changed.
     */
    if (tcpConnectionTable_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
             */
        }

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

    return MFD_SUCCESS;
}                               /* tcpConnectionTable_post_request */


/**********************************************************************
 **********************************************************************
 ***
 *** Table tcpConnectionTable
 ***
 **********************************************************************
 **********************************************************************/
/*
 * TCP-MIB::tcpConnectionTable is subid 19 of tcp.
 * Its status is Current.
 * OID: .1.3.6.1.2.1.6.19, length: 8
 */

/*
 * ---------------------------------------------------------------------
 * * TODO:200:r: Implement tcpConnectionTable data context functions.
 */
/*
 * tcpConnectionTable_allocate_data
 *
 * Purpose: create new tcpConnectionTable_data.
 */
tcpConnectionTable_data *
tcpConnectionTable_allocate_data(void)
{
    /*
     * TODO:201:r: |-> allocate memory for the tcpConnectionTable data context.
     */
    tcpConnectionTable_data *rtn =
        SNMP_MALLOC_TYPEDEF(tcpConnectionTable_data);

    DEBUGMSGTL(("verbose:tcpConnectionTable:tcpConnectionTable_allocate_data", "called\n"));

    if (NULL == rtn) {
        snmp_log(LOG_ERR, "unable to malloc memory for new "
                 "tcpConnectionTable_data.\n");
    }

    return rtn;
}                               /* tcpConnectionTable_allocate_data */

/*
 * tcpConnectionTable_release_data
 *
 * Purpose: release tcpConnectionTable data.
 */
void
tcpConnectionTable_release_data(tcpConnectionTable_data * data)
{
    DEBUGMSGTL(("verbose:tcpConnectionTable:tcpConnectionTable_release_data", "called\n"));

    /*
     * TODO:202:r: |-> release memory for the tcpConnectionTable data context.
     */
    free(data);
}                               /* tcpConnectionTable_release_data */



/**
 * set mib index(es)
 *
 * @param tbl_idx mib index structure
 * @param tcpConnectionLocalAddressType_val
 * @param tcpConnectionLocalAddress_val_ptr
 * @param tcpConnectionLocalAddress_val_ptr_len
 * @param tcpConnectionLocalPort_val
 * @param tcpConnectionRemAddressType_val
 * @param tcpConnectionRemAddress_val_ptr
 * @param tcpConnectionRemAddress_val_ptr_len
 * @param tcpConnectionRemPort_val
 *
 * @retval MFD_SUCCESS     : success.
 * @retval MFD_ERROR       : other error.
 *
 * @remark
 *  This convenience function is useful for setting all the MIB index
 *  components with a single function call. It is assume that the C values
 *  have already been mapped from their native/rawformat to the MIB format.
 */
int
tcpConnectionTable_indexes_set_tbl_idx(tcpConnectionTable_mib_index *
                                       tbl_idx,
                                       u_long
                                       tcpConnectionLocalAddressType_val,
                                       char
                                       *tcpConnectionLocalAddress_val_ptr,
                                       size_t
                                       tcpConnectionLocalAddress_val_ptr_len,
                                       u_long tcpConnectionLocalPort_val,
                                       u_long
                                       tcpConnectionRemAddressType_val,
                                       char
                                       *tcpConnectionRemAddress_val_ptr,
                                       size_t
                                       tcpConnectionRemAddress_val_ptr_len,
                                       u_long tcpConnectionRemPort_val)
{
    DEBUGMSGTL(("verbose:tcpConnectionTable:tcpConnectionTable_indexes_set_tbl_idx", "called\n"));

    /*
     * tcpConnectionLocalAddressType(1)/InetAddressType/ASN_INTEGER/long(u_long)//l/a/w/E/r/d/h 
     */
    /** WARNING: this code might not work for netsnmp_tcpconn_entry */
    /** are cross protocol connections allowed? */
    netsnmp_assert(tbl_idx->tcpConnectionRemAddressType ==
                   tbl_idx->tcpConnectionLocalAddressType);
    if (4 == tcpConnectionLocalAddressType_val)
        tbl_idx->tcpConnectionLocalAddressType = INETADDRESSTYPE_IPV4;
    else if (16 == tcpConnectionLocalAddressType_val)
        tbl_idx->tcpConnectionLocalAddressType = INETADDRESSTYPE_IPV6;
    else
        tbl_idx->tcpConnectionLocalAddressType = INETADDRESSTYPE_UNKNOWN;

    /*
     * tcpConnectionLocalAddress(2)/InetAddress/ASN_OCTET_STR/char(char)//L/a/w/e/R/d/h 
     */
    tbl_idx->tcpConnectionLocalAddress_len = sizeof(tbl_idx->tcpConnectionLocalAddress) / sizeof(tbl_idx->tcpConnectionLocalAddress[0]);        /* max length */
    /** WARNING: this code might not work for netsnmp_tcpconn_entry */
    /*
     * make sure there is enough space for tcpConnectionLocalAddress data
     */
    if ((NULL == tbl_idx->tcpConnectionLocalAddress) ||
        (tbl_idx->tcpConnectionLocalAddress_len <
         (tcpConnectionLocalAddress_val_ptr_len))) {
        snmp_log(LOG_ERR, "not enough space for value\n");
        return MFD_ERROR;
    }
    tbl_idx->tcpConnectionLocalAddress_len =
        tcpConnectionLocalAddress_val_ptr_len;
    memcpy(tbl_idx->tcpConnectionLocalAddress,
           tcpConnectionLocalAddress_val_ptr,
           tcpConnectionLocalAddress_val_ptr_len *
           sizeof(tcpConnectionLocalAddress_val_ptr[0]));

    /*
     * tcpConnectionLocalPort(3)/InetPortNumber/ASN_UNSIGNED/u_long(u_long)//l/a/w/e/R/d/H 
     */
    /** WARNING: this code might not work for netsnmp_tcpconn_entry */
    tbl_idx->tcpConnectionLocalPort = tcpConnectionLocalPort_val;

    /*
     * tcpConnectionRemAddressType(4)/InetAddressType/ASN_INTEGER/long(u_long)//l/a/w/E/r/d/h 
     */
    /** WARNING: this code might not work for netsnmp_tcpconn_entry */
    tbl_idx->tcpConnectionRemAddressType =
        tbl_idx->tcpConnectionLocalAddressType;

    /*
     * tcpConnectionRemAddress(5)/InetAddress/ASN_OCTET_STR/char(char)//L/a/w/e/R/d/h 
     */
    tbl_idx->tcpConnectionRemAddress_len = sizeof(tbl_idx->tcpConnectionRemAddress) / sizeof(tbl_idx->tcpConnectionRemAddress[0]);      /* max length */
    /** WARNING: this code might not work for netsnmp_tcpconn_entry */
    /*
     * make sure there is enough space for tcpConnectionRemAddress data
     */