inetcidrroutetable_interface.c

开发snmp的开发包有两个开放的SNMP开发库

        /*
         * save old pointer, so we can free it if replaced
         */
        old_string = requests->requestvb->val.string;
        dataFreeHook = requests->requestvb->dataFreeHook;
        if (NULL == requests->requestvb->val.string) {
            requests->requestvb->val.string = requests->requestvb->buf;
            requests->requestvb->val_len =
                sizeof(requests->requestvb->buf);
        } else if (requests->requestvb->buf ==
                   requests->requestvb->val.string) {
            if (requests->requestvb->val_len !=
                sizeof(requests->requestvb->buf))
                requests->requestvb->val_len =
                    sizeof(requests->requestvb->buf);
        }

        /*
         * get column data
         */
        tri = netsnmp_extract_table_info(requests);
        if (NULL == tri)
            continue;

        rc = _inetCidrRouteTable_get_column(rowreq_ctx,
                                            requests->requestvb,
                                            tri->colnum);
        if (rc) {
            if (MFD_SKIP == rc) {
                requests->requestvb->type = SNMP_NOSUCHINSTANCE;
                rc = SNMP_ERR_NOERROR;
            }
        } else if (NULL == requests->requestvb->val.string) {
            snmp_log(LOG_ERR, "NULL varbind data pointer!\n");
            rc = SNMP_ERR_GENERR;
        }
        if (rc)
            netsnmp_request_set_error(requests, SNMP_VALIDATE_ERR(rc));

        /*
         * if the buffer wasn't used previously for the old data (i.e. it
         * was allcoated memory)  and the get routine replaced the pointer,
         * we need to free the previous pointer.
         */
        if (old_string && (old_string != requests->requestvb->buf) &&
            (requests->requestvb->val.string != old_string)) {
            if (dataFreeHook)
                (*dataFreeHook) (old_string);
            else
                free(old_string);
        }
    }                           /* for results */

    return SNMP_ERR_NOERROR;
}                               /* _mfd_inetCidrRouteTable_get_values */

NETSNMP_STATIC_INLINE int
_inetCidrRouteTable_check_indexes(inetCidrRouteTable_rowreq_ctx *
                                  rowreq_ctx)
{
    int             rc = SNMPERR_SUCCESS;

    DEBUGMSGTL(("internal:inetCidrRouteTable:_inetCidrRouteTable_check_indexes", "called\n"));

    netsnmp_assert(NULL != rowreq_ctx);


    /*
     * (INDEX) inetCidrRouteDestType(1)/InetAddressType/ASN_INTEGER/long(u_long)//l/a/w/E/r/d/h 
     */
    /*
     * check that the value is one of defined enums 
     */
    if ((SNMPERR_SUCCESS == rc)
        && (rowreq_ctx->tbl_idx.inetCidrRouteDestType !=
            INETADDRESSTYPE_UNKNOWN)
        && (rowreq_ctx->tbl_idx.inetCidrRouteDestType !=
            INETADDRESSTYPE_IPV4)
        && (rowreq_ctx->tbl_idx.inetCidrRouteDestType !=
            INETADDRESSTYPE_IPV6)
        && (rowreq_ctx->tbl_idx.inetCidrRouteDestType !=
            INETADDRESSTYPE_IPV4Z)
        && (rowreq_ctx->tbl_idx.inetCidrRouteDestType !=
            INETADDRESSTYPE_IPV6Z)
        && (rowreq_ctx->tbl_idx.inetCidrRouteDestType !=
            INETADDRESSTYPE_DNS)
        ) {
        rc = SNMP_ERR_WRONGVALUE;
    }
    if (MFD_SUCCESS != rc)
        return rc;
    rc = inetCidrRouteDestType_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) inetCidrRouteDest(2)/InetAddress/ASN_OCTET_STR/char(char)//L/a/w/e/R/d/h 
     */
    /*
     * check defined range(s). 
     */
    if ((SNMPERR_SUCCESS == rc)
        && ((rowreq_ctx->tbl_idx.inetCidrRouteDest_len < 0)
            || (rowreq_ctx->tbl_idx.inetCidrRouteDest_len > 255))
        ) {
        rc = SNMP_ERR_WRONGLENGTH;
    }
    if (MFD_SUCCESS != rc)
        return rc;
    rc = inetCidrRouteDest_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) inetCidrRoutePfxLen(3)/InetAddressPrefixLength/ASN_UNSIGNED/u_long(u_long)//l/a/w/e/R/d/H 
     */
    /*
     * check defined range(s). 
     */
    if ((SNMPERR_SUCCESS == rc)
        && ((rowreq_ctx->tbl_idx.inetCidrRoutePfxLen < 0)
            || (rowreq_ctx->tbl_idx.inetCidrRoutePfxLen > 2040))
        ) {
        rc = SNMP_ERR_WRONGVALUE;
    }
    if (MFD_SUCCESS != rc)
        return rc;
    rc = inetCidrRoutePfxLen_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) inetCidrRoutePolicy(4)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/a/w/e/r/d/h 
     */
    if (MFD_SUCCESS != rc)
        return rc;
    rc = inetCidrRoutePolicy_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) inetCidrRouteNextHopType(5)/InetAddressType/ASN_INTEGER/long(u_long)//l/a/w/E/r/d/h 
     */
    /*
     * check that the value is one of defined enums 
     */
    if ((SNMPERR_SUCCESS == rc)
        && (rowreq_ctx->tbl_idx.inetCidrRouteNextHopType !=
            INETADDRESSTYPE_UNKNOWN)
        && (rowreq_ctx->tbl_idx.inetCidrRouteNextHopType !=
            INETADDRESSTYPE_IPV4)
        && (rowreq_ctx->tbl_idx.inetCidrRouteNextHopType !=
            INETADDRESSTYPE_IPV6)
        && (rowreq_ctx->tbl_idx.inetCidrRouteNextHopType !=
            INETADDRESSTYPE_IPV4Z)
        && (rowreq_ctx->tbl_idx.inetCidrRouteNextHopType !=
            INETADDRESSTYPE_IPV6Z)
        && (rowreq_ctx->tbl_idx.inetCidrRouteNextHopType !=
            INETADDRESSTYPE_DNS)
        ) {
        rc = SNMP_ERR_WRONGVALUE;
    }
    if (MFD_SUCCESS != rc)
        return rc;
    rc = inetCidrRouteNextHopType_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * (INDEX) inetCidrRouteNextHop(6)/InetAddress/ASN_OCTET_STR/char(char)//L/a/w/e/R/d/h 
     */
    /*
     * check defined range(s). 
     */
    if ((SNMPERR_SUCCESS == rc)
        && ((rowreq_ctx->tbl_idx.inetCidrRouteNextHop_len < 0)
            || (rowreq_ctx->tbl_idx.inetCidrRouteNextHop_len > 255))
        ) {
        rc = SNMP_ERR_WRONGLENGTH;
    }
    if (MFD_SUCCESS != rc)
        return rc;
    rc = inetCidrRouteNextHop_check_index(rowreq_ctx);
    if (MFD_SUCCESS != rc)
        return SNMP_ERR_NOCREATION;

    /*
     * if individual parts look ok, check them as a whole
     */
    return inetCidrRouteTable_validate_index(inetCidrRouteTable_if_ctx.
                                             user_ctx, rowreq_ctx);
}                               /* _inetCidrRouteTable_check_indexes */

/***********************************************************************
 *
 * SET processing
 *
 ***********************************************************************/

/*----------------------------------------------------------------------
 *
 * SET: Syntax checks
 *
 *---------------------------------------------------------------------*/
/*
 * @internal
 * Check the syntax for a particular column
 */
NETSNMP_STATIC_INLINE int
_inetCidrRouteTable_check_column(inetCidrRouteTable_rowreq_ctx *
                                 rowreq_ctx, netsnmp_variable_list * var,
                                 int column)
{
    int             rc = SNMPERR_SUCCESS;

    DEBUGMSGTL(("internal:inetCidrRouteTable:_inetCidrRouteTable_check_column", "called for %d\n", column));

    netsnmp_assert(NULL != rowreq_ctx);

    switch (column) {
        /*
         * (INDEX) inetCidrRouteDestType(1)/InetAddressType/ASN_INTEGER/long(u_long)//l/a/w/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTEDESTTYPE:
        rc = SNMP_ERR_NOTWRITABLE;      /* can not change index of active row */
        break;
        /*
         * (INDEX) inetCidrRouteDest(2)/InetAddress/ASN_OCTET_STR/char(char)//L/a/w/e/R/d/h 
         */
    case COLUMN_INETCIDRROUTEDEST:
        rc = SNMP_ERR_NOTWRITABLE;      /* can not change index of active row */
        break;
        /*
         * (INDEX) inetCidrRoutePfxLen(3)/InetAddressPrefixLength/ASN_UNSIGNED/u_long(u_long)//l/a/w/e/R/d/H 
         */
    case COLUMN_INETCIDRROUTEPFXLEN:
        rc = SNMP_ERR_NOTWRITABLE;      /* can not change index of active row */
        break;
        /*
         * (INDEX) inetCidrRoutePolicy(4)/OBJECTID/ASN_OBJECT_ID/oid(oid)//L/a/w/e/r/d/h 
         */
    case COLUMN_INETCIDRROUTEPOLICY:
        rc = SNMP_ERR_NOTWRITABLE;      /* can not change index of active row */
        break;
        /*
         * (INDEX) inetCidrRouteNextHopType(5)/InetAddressType/ASN_INTEGER/long(u_long)//l/a/w/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTENEXTHOPTYPE:
        rc = SNMP_ERR_NOTWRITABLE;      /* can not change index of active row */
        break;
        /*
         * (INDEX) inetCidrRouteNextHop(6)/InetAddress/ASN_OCTET_STR/char(char)//L/a/w/e/R/d/h 
         */
    case COLUMN_INETCIDRROUTENEXTHOP:
        rc = SNMP_ERR_NOTWRITABLE;      /* can not change index of active row */
        break;

        /*
         * inetCidrRouteIfIndex(7)/InterfaceIndexOrZero/ASN_INTEGER/long(long)//l/A/W/e/R/d/H 
         */
    case COLUMN_INETCIDRROUTEIFINDEX:
        rc = netsnmp_check_vb_type(var, ASN_INTEGER);
        /*
         * check defined range(s). 
         */
        if ((SNMPERR_SUCCESS == rc)
            && ((*var->val.integer < 0)
                || (*var->val.integer > 2147483647))
            ) {
            rc = SNMP_ERR_WRONGVALUE;
        }
        if (SNMPERR_SUCCESS != rc) {
            DEBUGMSGTL(("inetCidrRouteTable:_inetCidrRouteTable_check_column:inetCidrRouteIfIndex", "varbind validation failed (eg bad type or size)\n"));
        } else {
            rc = inetCidrRouteIfIndex_check_value(rowreq_ctx,
                                                  *((long *) var->val.
                                                    string));
            if ((MFD_SUCCESS != rc) && (MFD_NOT_VALID_EVER != rc)
                && (MFD_NOT_VALID_NOW != rc)) {
                snmp_log(LOG_ERR,
                         "bad rc %d from inetCidrRouteIfIndex_check_value\n",
                         rc);
                rc = SNMP_ERR_GENERR;
            }
        }
        break;

        /*
         * inetCidrRouteType(8)/INTEGER/ASN_INTEGER/long(u_long)//l/A/W/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTETYPE:
        rc = netsnmp_check_vb_type(var, ASN_INTEGER);
        /*
         * check that the value is one of defined enums 
         */
        if ((SNMPERR_SUCCESS == rc)
            && (*var->val.integer != INETCIDRROUTETYPE_OTHER)
            && (*var->val.integer != INETCIDRROUTETYPE_REJECT)
            && (*var->val.integer != INETCIDRROUTETYPE_LOCAL)
            && (*var->val.integer != INETCIDRROUTETYPE_REMOTE)
            && (*var->val.integer != INETCIDRROUTETYPE_BLACKHOLE)
            ) {
            rc = SNMP_ERR_WRONGVALUE;
        }
        if (SNMPERR_SUCCESS != rc) {
            DEBUGMSGTL(("inetCidrRouteTable:_inetCidrRouteTable_check_column:inetCidrRouteType", "varbind validation failed (eg bad type or size)\n"));
        } else {
            rc = inetCidrRouteType_check_value(rowreq_ctx,
                                               *((u_long *) var->val.
                                                 string));
            if ((MFD_SUCCESS != rc) && (MFD_NOT_VALID_EVER != rc)
                && (MFD_NOT_VALID_NOW != rc)) {
                snmp_log(LOG_ERR,
                         "bad rc %d from inetCidrRouteType_check_value\n",
                         rc);
                rc = SNMP_ERR_GENERR;
            }
        }
        break;

        /*
         * inetCidrRouteProto(9)/IANAipRouteProtocol/ASN_INTEGER/long(u_long)//l/A/w/E/r/d/h 
         */
    case COLUMN_INETCIDRROUTEPROTO:
        rc = SNMP_ERR_NOTWRITABLE;
        break;

        /*
         * inetCidrRouteAge(10)/GAUGE/ASN_GAUGE/u_long(u_long)//l/A/w/e/r/d/h 
         */
    case COLUMN_INETCIDRROUTEAGE:
        rc = SNMP_ERR_NOTWRITABLE;
        break;

        /*
         * inetCidrRouteNextHopAS(11)/InetAutonomousSystemNumber/ASN_UNSIGNED/u_long(u_long)//l/A/W/e/r/D/H 
         */
    case COLUMN_INETCIDRROUTENEXTHOPAS:
        rc = netsnmp_check_vb_type(var, ASN_UNSIGNED);
        if (SNMPERR_SUCCESS != rc) {
            DEBUGMSGTL(("inetCidrRouteTable:_inetCidrRouteTable_check_column:inetCidrRouteNextHopAS", "varbind validation failed (eg bad type or size)\n"));
        } else {
            rc = inetCidrRouteNextHopAS_check_value(rowreq_ctx,
                                                    *((u_long *) var->val.
                                                      string));
            if ((MFD_SUCCESS != rc) && (MFD_NOT_VALID_EVER != rc)
                && (MFD_NOT_VALID_NOW != rc)) {
                snmp_log(LOG_ERR,
                         "bad rc %d from inetCidrRouteNextHopAS_check_value\n",
                         rc);
                rc = SNMP_ERR_GENERR;
            }
        }
        break;

        /*
         * inetCidrRouteMetric1(12)/INTEGER32/ASN_INTEGER/long(long)//l/A/W/e/r/D/h 
         */
    case COLUMN_INETCIDRROUTEMETRIC1:
        rc = netsnmp_check_vb_type(var, ASN_INTEGER);
        if (SNMPERR_SUCCESS != rc) {
            DEBUGMSGTL(("inetCidrRouteTable:_inetCidrRouteTable_check_column:inetCidrRouteMetric1", "varbind validation failed (eg bad type or size)\n"));
        } else {
            rc = inetCidrRouteMetric1_check_value(rowreq_ctx,
                                                  *((long *) var->val.
                                                    string));
            if ((MFD_SUCCESS != rc) && (MFD_NOT_VALID_EVER != rc)
                && (MFD_NOT_VALID_NOW != rc)) {
                snmp_log(LOG_ERR,
                         "bad rc %d from inetCidrRouteMetric1_check_value\n",