snmpnotifyfiltertable_interface.c

开发snmp的开发包有两个开放的SNMP开发库

    
    
    
    
    
    
    
    
    _snmpNotifyFilterTable_shutdown_interface
    (snmpNotifyFilterTable_registration * reg_ptr) {
    /*
     * shutdown the container
     */
    _snmpNotifyFilterTable_container_shutdown
        (&snmpNotifyFilterTable_if_ctx);
}

void
snmpNotifyFilterTable_valid_columns_set(netsnmp_column_info *vc)
{
    snmpNotifyFilterTable_if_ctx.tbl_info.valid_columns = vc;
}                               /* snmpNotifyFilterTable_valid_columns_set */

/**
 * @internal
 * convert the index component stored in the context to an oid
 */
int
snmpNotifyFilterTable_index_to_oid(netsnmp_index * oid_idx,
                                   snmpNotifyFilterTable_mib_index *
                                   mib_idx)
{
    int             err = SNMP_ERR_NOERROR;

    /*
     * temp storage for parsing indexes
     */
    /*
     * snmpNotifyFilterProfileName(1)/SnmpAdminString/ASN_OCTET_STR/char(char)//L/A/W/e/R/d/H
     */
    netsnmp_variable_list var_snmpNotifyFilterProfileName;
    /*
     * snmpNotifyFilterSubtree(1)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/a/w/e/r/d/h
     */
    netsnmp_variable_list var_snmpNotifyFilterSubtree;

    /*
     * set up varbinds
     */
    memset(&var_snmpNotifyFilterProfileName, 0x00,
           sizeof(var_snmpNotifyFilterProfileName));
    var_snmpNotifyFilterProfileName.type = ASN_OCTET_STR;
    memset(&var_snmpNotifyFilterSubtree, 0x00,
           sizeof(var_snmpNotifyFilterSubtree));
    var_snmpNotifyFilterSubtree.type = ASN_PRIV_IMPLIED_OBJECT_ID;

    /*
     * chain temp index varbinds together
     */
    var_snmpNotifyFilterProfileName.next_variable =
        &var_snmpNotifyFilterSubtree;
    var_snmpNotifyFilterSubtree.next_variable = NULL;


    DEBUGMSGTL(("verbose:snmpNotifyFilterTable:snmpNotifyFilterTable_index_to_oid", "called\n"));

    /*
     * snmpNotifyFilterProfileName(1)/SnmpAdminString/ASN_OCTET_STR/char(char)//L/A/W/e/R/d/H 
     */
    snmp_set_var_value(&var_snmpNotifyFilterProfileName,
                       (u_char *) & mib_idx->snmpNotifyFilterProfileName,
                       mib_idx->snmpNotifyFilterProfileName_len *
                       sizeof(mib_idx->snmpNotifyFilterProfileName[0]));

    /*
     * snmpNotifyFilterSubtree(1)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/a/w/e/r/d/h 
     */
    snmp_set_var_value(&var_snmpNotifyFilterSubtree,
                       (u_char *) & mib_idx->snmpNotifyFilterSubtree,
                       mib_idx->snmpNotifyFilterSubtree_len *
                       sizeof(mib_idx->snmpNotifyFilterSubtree[0]));


    err = build_oid_noalloc(oid_idx->oids, oid_idx->len, &oid_idx->len,
                            NULL, 0, &var_snmpNotifyFilterProfileName);
    if (err)
        snmp_log(LOG_ERR, "error %d converting index to oid\n", err);

    /*
     * parsing may have allocated memory. free it.
     */
    snmp_reset_var_buffers(&var_snmpNotifyFilterProfileName);

    return err;
}                               /* snmpNotifyFilterTable_index_to_oid */

/**
 * extract snmpNotifyFilterTable indexes from a netsnmp_index
 *
 * @retval SNMP_ERR_NOERROR  : no error
 * @retval SNMP_ERR_GENERR   : error
 */
int
snmpNotifyFilterTable_index_from_oid(netsnmp_index * oid_idx,
                                     snmpNotifyFilterTable_mib_index *
                                     mib_idx)
{
    int             err = SNMP_ERR_NOERROR;

    /*
     * temp storage for parsing indexes
     */
    /*
     * snmpNotifyFilterProfileName(1)/SnmpAdminString/ASN_OCTET_STR/char(char)//L/A/W/e/R/d/H
     */
    netsnmp_variable_list var_snmpNotifyFilterProfileName;
    /*
     * snmpNotifyFilterSubtree(1)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/a/w/e/r/d/h
     */
    netsnmp_variable_list var_snmpNotifyFilterSubtree;

    /*
     * set up varbinds
     */
    memset(&var_snmpNotifyFilterProfileName, 0x00,
           sizeof(var_snmpNotifyFilterProfileName));
    var_snmpNotifyFilterProfileName.type = ASN_OCTET_STR;
    memset(&var_snmpNotifyFilterSubtree, 0x00,
           sizeof(var_snmpNotifyFilterSubtree));
    var_snmpNotifyFilterSubtree.type = ASN_PRIV_IMPLIED_OBJECT_ID;

    /*
     * chain temp index varbinds together
     */
    var_snmpNotifyFilterProfileName.next_variable =
        &var_snmpNotifyFilterSubtree;
    var_snmpNotifyFilterSubtree.next_variable = NULL;


    DEBUGMSGTL(("verbose:snmpNotifyFilterTable:snmpNotifyFilterTable_index_from_oid", "called\n"));

    /*
     * parse the oid into the individual index components
     */
    err = parse_oid_indexes(oid_idx->oids, oid_idx->len,
                            &var_snmpNotifyFilterProfileName);
    if (err == SNMP_ERR_NOERROR) {
        /*
         * copy out values
         */
        /*
         * NOTE: val_len is in bytes, snmpNotifyFilterProfileName_len might not be
         */
        if (var_snmpNotifyFilterProfileName.val_len >
            sizeof(mib_idx->snmpNotifyFilterProfileName))
            err = SNMP_ERR_GENERR;
        else {
            memcpy(mib_idx->snmpNotifyFilterProfileName,
                   var_snmpNotifyFilterProfileName.val.string,
                   var_snmpNotifyFilterProfileName.val_len);
            mib_idx->snmpNotifyFilterProfileName_len =
                var_snmpNotifyFilterProfileName.val_len /
                sizeof(mib_idx->snmpNotifyFilterProfileName[0]);
        }
        /*
         * NOTE: val_len is in bytes, snmpNotifyFilterSubtree_len might not be
         */
        if (var_snmpNotifyFilterSubtree.val_len >
            sizeof(mib_idx->snmpNotifyFilterSubtree))
            err = SNMP_ERR_GENERR;
        else {
            memcpy(mib_idx->snmpNotifyFilterSubtree,
                   var_snmpNotifyFilterSubtree.val.string,
                   var_snmpNotifyFilterSubtree.val_len);
            mib_idx->snmpNotifyFilterSubtree_len =
                var_snmpNotifyFilterSubtree.val_len /
                sizeof(mib_idx->snmpNotifyFilterSubtree[0]);
        }


    }

    /*
     * parsing may have allocated memory. free it.
     */
    snmp_reset_var_buffers(&var_snmpNotifyFilterProfileName);

    return err;
}                               /* snmpNotifyFilterTable_index_from_oid */


/*
 * snmpNotifyFilterTable_allocate_data
 *
 * Purpose: create new snmpNotifyFilterTable_data.
 */
snmpNotifyFilterTable_data *
snmpNotifyFilterTable_allocate_data(void)
{
    snmpNotifyFilterTable_data *rtn =
        SNMP_MALLOC_TYPEDEF(snmpNotifyFilterTable_data);

    DEBUGMSGTL(("verbose:snmpNotifyFilterTable:snmpNotifyFilterTable_allocate_data", "called\n"));

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

    return rtn;
}                               /* snmpNotifyFilterTable_allocate_data */

/*
 * snmpNotifyFilterTable_release_data
 *
 * Purpose: release snmpNotifyFilterTable data.
 */
void
snmpNotifyFilterTable_release_data(snmpNotifyFilterTable_data * data)
{
    DEBUGMSGTL(("verbose:snmpNotifyFilterTable:snmpNotifyFilterTable_release_data", "called\n"));

    free(data);
}                               /* snmpNotifyFilterTable_release_data */

/*
 *********************************************************************
 * @internal
 * allocate resources for a snmpNotifyFilterTable_rowreq_ctx
 */
snmpNotifyFilterTable_rowreq_ctx *
snmpNotifyFilterTable_allocate_rowreq_ctx(void *user_init_ctx)
{
    snmpNotifyFilterTable_rowreq_ctx *rowreq_ctx =
        SNMP_MALLOC_TYPEDEF(snmpNotifyFilterTable_rowreq_ctx);

    DEBUGMSGTL(("internal:snmpNotifyFilterTable:snmpNotifyFilterTable_allocate_rowreq_ctx", "called\n"));

    if (NULL == rowreq_ctx) {
        snmp_log(LOG_ERR, "Couldn't allocate memory for a "
                 "snmpNotifyFilterTable_rowreq_ctx.\n");
        return NULL;
    }

    rowreq_ctx->oid_idx.oids = rowreq_ctx->oid_tmp;

    rowreq_ctx->snmpNotifyFilterTable_data_list = NULL;

    /*
     * if we allocated data, call init routine
     */
    if (!(rowreq_ctx->rowreq_flags & MFD_ROW_DATA_FROM_USER)) {
        if (SNMPERR_SUCCESS !=
            snmpNotifyFilterTable_rowreq_ctx_init(rowreq_ctx,
                                                  user_init_ctx)) {
            snmpNotifyFilterTable_release_rowreq_ctx(rowreq_ctx);
            rowreq_ctx = NULL;
        }
    }

    return rowreq_ctx;
}                               /* snmpNotifyFilterTable_allocate_rowreq_ctx */

/*
 * @internal
 * release resources for a snmpNotifyFilterTable_rowreq_ctx
 */
void
snmpNotifyFilterTable_release_rowreq_ctx(snmpNotifyFilterTable_rowreq_ctx *
                                         rowreq_ctx)
{
    DEBUGMSGTL(("internal:snmpNotifyFilterTable:snmpNotifyFilterTable_release_rowreq_ctx", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);

    snmpNotifyFilterTable_rowreq_ctx_cleanup(rowreq_ctx);

    if (rowreq_ctx->undo)
        snmpNotifyFilterTable_release_data(rowreq_ctx->undo);

    /*
     * free index oid pointer
     */
    if (rowreq_ctx->oid_idx.oids != rowreq_ctx->oid_tmp)
        free(rowreq_ctx->oid_idx.oids);

    SNMP_FREE(rowreq_ctx);
}                               /* snmpNotifyFilterTable_release_rowreq_ctx */

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

    DEBUGMSGTL(("internal:snmpNotifyFilterTable:_mfd_snmpNotifyFilterTable_pre_request", "called\n"));

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

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

    return SNMP_ERR_NOERROR;
}                               /* _mfd_snmpNotifyFilterTable_pre_request */

/**
 * @internal
 * wrapper
 */
static int
_mfd_snmpNotifyFilterTable_post_request(netsnmp_mib_handler *handler, netsnmp_handler_registration
                                        *reginfo, netsnmp_agent_request_info
                                        *agtreq_info,
                                        netsnmp_request_info *requests)
{
    snmpNotifyFilterTable_rowreq_ctx *rowreq_ctx =
        netsnmp_container_table_row_extract(requests);
    int             rc, packet_rc;

    DEBUGMSGTL(("internal:snmpNotifyFilterTable:_mfd_snmpNotifyFilterTable_post_request", "called\n"));

    /*
     * release row context, if deleted
     */
    if (rowreq_ctx && (rowreq_ctx->rowreq_flags & MFD_ROW_DELETED))
        snmpNotifyFilterTable_release_rowreq_ctx(rowreq_ctx);

    /*
     * wait for last call before calling user
     */
    if (1 != netsnmp_row_merge_status_last(reginfo, agtreq_info)) {
        DEBUGMSGTL(("internal:snmpNotifyFilterTable",
                    "waiting for last post_request\n"));
        return SNMP_ERR_NOERROR;
    }

    packet_rc = netsnmp_check_all_requests_error(agtreq_info->asp, 0);
    if ((MFD_SUCCESS != packet_rc) && snmpNotifyFilterTable_dirty_get()) {
        /*
         * we shouldn't get here. the undo steps should also clear
         * the dirty flags.
         */
        snmp_log(LOG_WARNING,
                 "snmpNotifyFilterTable dirty flag set in post_request "
                 "but status != SUCCESS.\n");
    }

    rc = snmpNotifyFilterTable_post_request(snmpNotifyFilterTable_if_ctx.
                                            user_ctx, packet_rc);
    if (MFD_SUCCESS != rc) {
        /*
         * nothing we can do about it but log it
         */
        DEBUGMSGTL(("snmpNotifyFilterTable", "error %d from "
                    "snmpNotifyFilterTable_post_request\n", rc));
    }

    return SNMP_ERR_NOERROR;
}                               /* _mfd_snmpNotifyFilterTable_post_request */

/**
 * @internal
 * wrapper
 */
static snmpNotifyFilterTable_rowreq_ctx *
_mfd_snmpNotifyFilterTable_rowreq_from_index(netsnmp_index * oid_idx,
                                             int *rc_ptr)
{
    snmpNotifyFilterTable_rowreq_ctx *rowreq_ctx;
    snmpNotifyFilterTable_mib_index mib_idx;
    int             rc;