ipv4interfacetable_interface.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 : 1.67 $ of : mfd-interface.m2c,v $ 
 *
 * $Id: ipv4InterfaceTable_interface.c 14142 2006-01-15 19:55:17Z rstory $
 */
/*
 * *********************************************************************
 * *********************************************************************
 * *********************************************************************
 * ***                                                               ***
 * ***  NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE  ***
 * ***                                                               ***
 * ***                                                               ***
 * ***       THIS FILE DOES NOT CONTAIN ANY USER EDITABLE CODE.      ***
 * ***                                                               ***
 * ***                                                               ***
 * ***       THE GENERATED CODE IS INTERNAL IMPLEMENTATION, AND      ***
 * ***                                                               ***
 * ***                                                               ***
 * ***    IS SUBJECT TO CHANGE WITHOUT WARNING IN FUTURE RELEASES.   ***
 * ***                                                               ***
 * ***                                                               ***
 * *********************************************************************
 * *********************************************************************
 * *********************************************************************
 */

/*
 * 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/table_container.h>
#include <net-snmp/library/container.h>

#include "ipv4InterfaceTable_interface.h"

#include <ctype.h>

/**********************************************************************
 **********************************************************************
 ***
 *** 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
 */
typedef struct ipv4InterfaceTable_interface_ctx_s {

    netsnmp_container *container;

    ipv4InterfaceTable_registration *user_ctx;

    netsnmp_table_registration_info tbl_info;

    netsnmp_baby_steps_access_methods access_multiplexer;

    u_long          last_changed;

} ipv4InterfaceTable_interface_ctx;

static ipv4InterfaceTable_interface_ctx ipv4InterfaceTable_if_ctx;

static void
                _ipv4InterfaceTable_container_init(ipv4InterfaceTable_interface_ctx *
                                                   if_ctx);
static void
                _ipv4InterfaceTable_container_shutdown(ipv4InterfaceTable_interface_ctx *
                                                       if_ctx);


netsnmp_container *
ipv4InterfaceTable_container_get(void)
{
    return ipv4InterfaceTable_if_ctx.container;
}

ipv4InterfaceTable_registration *
ipv4InterfaceTable_registration_get(void)
{
    return ipv4InterfaceTable_if_ctx.user_ctx;
}

ipv4InterfaceTable_registration *
ipv4InterfaceTable_registration_set(ipv4InterfaceTable_registration *
                                    newreg)
{
    ipv4InterfaceTable_registration *old =
        ipv4InterfaceTable_if_ctx.user_ctx;
    ipv4InterfaceTable_if_ctx.user_ctx = newreg;
    return old;
}

int
ipv4InterfaceTable_container_size(void)
{
    return CONTAINER_SIZE(ipv4InterfaceTable_if_ctx.container);
}

u_int
ipv4InterfaceTable_dirty_get(void)
{
    return ifTable_dirty_get();
}

void
ipv4InterfaceTable_dirty_set(u_int status)
{
    ifTable_dirty_set(status);
}

/*
 * ipv4InterfaceTableLastChanged, which is  the last time that a row in
 * the table was changed or the last time a row was added/deleted from the
 * table.
 */
void
ipv4InterfaceTable_lastChange_set(u_long table_changed)
{
    DEBUGMSGTL(("ipv4InterfaceTable:lastChanged_set",
                "called. was %ld, now %ld\n",
                ipv4InterfaceTable_if_ctx.last_changed, table_changed));
    ipv4InterfaceTable_if_ctx.last_changed = table_changed;
}

/*
 * mfd multiplexer modes
 */
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_pre_request;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_post_request;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_object_lookup;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_get_values;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_check_objects;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_undo_setup;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_set_values;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_undo_cleanup;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_undo_values;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_commit;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_undo_commit;
static Netsnmp_Node_Handler _mfd_ipv4InterfaceTable_irreversible_commit;

NETSNMP_STATIC_INLINE int
                _ipv4InterfaceTable_undo_column(ipv4InterfaceTable_rowreq_ctx * rowreq_ctx,
                                                netsnmp_variable_list *
                                                var, int column);

ipv4InterfaceTable_data *ipv4InterfaceTable_allocate_data(void);

/**
 * @internal
 * Initialize the table ipv4InterfaceTable 
 *    (Define its contents and how it's structured)
 */
void
_ipv4InterfaceTable_initialize_interface(ipv4InterfaceTable_registration *
                                         reg_ptr, u_long flags)
{
    netsnmp_baby_steps_access_methods *access_multiplexer =
        &ipv4InterfaceTable_if_ctx.access_multiplexer;
    netsnmp_table_registration_info *tbl_info =
        &ipv4InterfaceTable_if_ctx.tbl_info;
    netsnmp_handler_registration *reginfo;
    netsnmp_mib_handler *handler;
    int             mfd_modes = 0;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_ipv4InterfaceTable_initialize_interface", "called\n"));


    /*************************************************
     *
     * save interface context for ipv4InterfaceTable
     */
    /*
     * Setting up the table's definition
     */
    netsnmp_table_helper_add_indexes(tbl_info, ASN_INTEGER,
                                               /** index: ipv4InterfaceIfIndex */
                                     0);

    /*
     * Define the minimum and maximum accessible columns.  This
     * optimizes retrival. 
     */
    tbl_info->min_column = IPV4INTERFACETABLE_MIN_COL;
    tbl_info->max_column = IPV4INTERFACETABLE_MAX_COL;

    /*
     * save users context
     */
    ipv4InterfaceTable_if_ctx.user_ctx = reg_ptr;

    /*
     * call data access initialization code
     */
    ipv4InterfaceTable_init_data(reg_ptr);

    /*
     * set up the container
     */
    _ipv4InterfaceTable_container_init(&ipv4InterfaceTable_if_ctx);
    if (NULL == ipv4InterfaceTable_if_ctx.container) {
        snmp_log(LOG_ERR,
                 "could not initialize container for ipv4InterfaceTable\n");
        return;
    }

    /*
     * access_multiplexer: REQUIRED wrapper for get request handling
     */
    access_multiplexer->object_lookup =
        _mfd_ipv4InterfaceTable_object_lookup;
    access_multiplexer->get_values = _mfd_ipv4InterfaceTable_get_values;

    /*
     * no wrappers yet
     */
    access_multiplexer->pre_request = _mfd_ipv4InterfaceTable_pre_request;
    access_multiplexer->post_request =
        _mfd_ipv4InterfaceTable_post_request;


    /*
     * REQUIRED wrappers for set request handling
     */
    access_multiplexer->object_syntax_checks =
        _mfd_ipv4InterfaceTable_check_objects;
    access_multiplexer->undo_setup = _mfd_ipv4InterfaceTable_undo_setup;
    access_multiplexer->undo_cleanup =
        _mfd_ipv4InterfaceTable_undo_cleanup;
    access_multiplexer->set_values = _mfd_ipv4InterfaceTable_set_values;
    access_multiplexer->undo_sets = _mfd_ipv4InterfaceTable_undo_values;

    /*
     * no wrappers yet
     */
    access_multiplexer->commit = _mfd_ipv4InterfaceTable_commit;
    access_multiplexer->undo_commit = _mfd_ipv4InterfaceTable_undo_commit;
    access_multiplexer->irreversible_commit =
        _mfd_ipv4InterfaceTable_irreversible_commit;

    /*************************************************
     *
     * Create a registration, save our reg data, register table.
     */
    DEBUGMSGTL(("ipv4InterfaceTable:init_ipv4InterfaceTable",
                "Registering ipv4InterfaceTable as a mibs-for-dummies table.\n"));
    handler =
        netsnmp_baby_steps_access_multiplexer_get(access_multiplexer);
    reginfo =
        netsnmp_handler_registration_create("ipv4InterfaceTable", handler,
                                            ipv4InterfaceTable_oid,
                                            ipv4InterfaceTable_oid_size,
                                            HANDLER_CAN_BABY_STEP |
                                            HANDLER_CAN_RWRITE);
    if (NULL == reginfo) {
        snmp_log(LOG_ERR, "error registering table ipv4InterfaceTable\n");
        return;
    }
    reginfo->my_reg_void = &ipv4InterfaceTable_if_ctx;

    /*************************************************
     *
     * set up baby steps handler, create it and inject it
     */
    if (access_multiplexer->object_lookup)
        mfd_modes |= BABY_STEP_OBJECT_LOOKUP;
    if (access_multiplexer->set_values)
        mfd_modes |= BABY_STEP_SET_VALUES;
    if (access_multiplexer->irreversible_commit)
        mfd_modes |= BABY_STEP_IRREVERSIBLE_COMMIT;
    if (access_multiplexer->object_syntax_checks)
        mfd_modes |= BABY_STEP_CHECK_OBJECT;

    if (access_multiplexer->pre_request)
        mfd_modes |= BABY_STEP_PRE_REQUEST;
    if (access_multiplexer->post_request)
        mfd_modes |= BABY_STEP_POST_REQUEST;

    if (access_multiplexer->undo_setup)
        mfd_modes |= BABY_STEP_UNDO_SETUP;
    if (access_multiplexer->undo_cleanup)
        mfd_modes |= BABY_STEP_UNDO_CLEANUP;
    if (access_multiplexer->undo_sets)
        mfd_modes |= BABY_STEP_UNDO_SETS;

    if (access_multiplexer->row_creation)
        mfd_modes |= BABY_STEP_ROW_CREATE;
    if (access_multiplexer->consistency_checks)
        mfd_modes |= BABY_STEP_CHECK_CONSISTENCY;
    if (access_multiplexer->commit)
        mfd_modes |= BABY_STEP_COMMIT;
    if (access_multiplexer->undo_commit)
        mfd_modes |= BABY_STEP_UNDO_COMMIT;

    handler = netsnmp_baby_steps_handler_get(mfd_modes);
    netsnmp_inject_handler(reginfo, handler);

    /*************************************************
     *
     * inject row_merge helper with prefix rootoid_len + 2 (entry.col)
     */
    handler = netsnmp_get_row_merge_handler(reginfo->rootoid_len + 2);
    netsnmp_inject_handler(reginfo, handler);

    /*************************************************
     *
     * inject container_table helper
     */
    handler =
        netsnmp_container_table_handler_get(tbl_info,
                                            ipv4InterfaceTable_if_ctx.
                                            container,
                                            TABLE_CONTAINER_KEY_NETSNMP_INDEX);
    netsnmp_inject_handler(reginfo, handler);

    /*
     * register table
     */
    netsnmp_register_table(reginfo, tbl_info);

    /*
     * register LastChanged
     */
    {
        oid             lc_oid[] = { IPV4INTERFACETABLELASTCHANGE_OID };
        netsnmp_register_watched_scalar(netsnmp_create_handler_registration
                                        ("ipv4TableLastChanged", NULL,
                                         lc_oid, OID_LENGTH(lc_oid),
                                         HANDLER_CAN_RONLY),
                                        netsnmp_create_watcher_info((void
                                                                     *)
                                                                    &ipv4InterfaceTable_if_ctx.
                                                                    last_changed,
                                                                    sizeof
                                                                    (u_long),
                                                                    ASN_TIMETICKS,
                                                                    WATCHER_FIXED_SIZE));
    }
}                               /* _ipv4InterfaceTable_initialize_interface */

/**
 * @internal
 * Shutdown the table ipv4InterfaceTable
 */
void
_ipv4InterfaceTable_shutdown_interface(ipv4InterfaceTable_registration *
                                       reg_ptr)
{
    /*
     * shutdown the container
     */
    _ipv4InterfaceTable_container_shutdown(&ipv4InterfaceTable_if_ctx);
}

void
ipv4InterfaceTable_valid_columns_set(netsnmp_column_info *vc)
{
    ipv4InterfaceTable_if_ctx.tbl_info.valid_columns = vc;
}                               /* ipv4InterfaceTable_valid_columns_set */

/*
 * ipv4InterfaceTable_allocate_data
 *
 * Purpose: create new ipv4InterfaceTable_data.
 */
ipv4InterfaceTable_data *
ipv4InterfaceTable_allocate_data(void)
{
    ipv4InterfaceTable_data *rtn =
        SNMP_MALLOC_TYPEDEF(ipv4InterfaceTable_data);

    DEBUGMSGTL(("verbose:ipv4InterfaceTable:ipv4InterfaceTable_allocate_data", "called\n"));

    if (NULL == rtn) {
        snmp_log(LOG_ERR, "unable to malloc memory for new "
                 "ipv4InterfaceTable_data.\n");
    }

    return rtn;
}                               /* ipv4InterfaceTable_allocate_data */

/**
 * @internal
 * wrapper
 */
static int
_mfd_ipv4InterfaceTable_pre_request(netsnmp_mib_handler *handler,
                                    netsnmp_handler_registration *reginfo,
                                    netsnmp_agent_request_info
                                    *agtreq_info,
                                    netsnmp_request_info *requests)
{
    int             rc;

    DEBUGMSGTL(("internal:ipv4InterfaceTable:_mfd_ipv4InterfaceTable_pre_request", "called\n"));

    if (1 != netsnmp_row_merge_status_first(reginfo, agtreq_info)) {
        DEBUGMSGTL(("internal:ipv4InterfaceTable",
                    "skipping additional pre_request\n"));
        return SNMP_ERR_NOERROR;
    }

    rc = ipv4InterfaceTable_pre_request(ipv4InterfaceTable_if_ctx.
                                        user_ctx);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("ipv4InterfaceTable", "error %d from "
                    "ipv4InterfaceTable_pre_request\n", rc));
        netsnmp_request_set_error_all(requests, SNMP_VALIDATE_ERR(rc));
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_ipv4InterfaceTable_pre_request */

/**
 * @internal
 * wrapper
 */
static int
_mfd_ipv4InterfaceTable_post_request(netsnmp_mib_handler *handler,
                                     netsnmp_handler_registration *reginfo,
                                     netsnmp_agent_request_info