blob: 3bf6d19e0ba30fdf28d001cd5f33de15aeed8ac1 [file] [log] [blame]
/*
* Copyright 2018-present Open Networking Foundation
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package utils
import (
cryptoRand "crypto/rand"
"encoding/binary"
"errors"
"fmt"
"strconv"
"github.com/google/uuid"
)
// CreateDeviceID produces a device ID. The device ID is a UUID
func CreateDeviceID() string {
return uuid.New().String()
}
// CreateLogicalDeviceID produces a logical device ID. The logical device ID is a UUID
func CreateLogicalDeviceID() string {
return uuid.New().String()
}
// CreateLogicalPortID produces a random port ID for a logical device.
func CreateLogicalPortID() (v uint64, err error) {
err = binary.Read(cryptoRand.Reader, binary.BigEndian, &v)
if err != nil {
return v, err
}
return v, nil
}
// CreateDataPathID creates uint64 pathid from string pathid
func CreateDataPathID(idInHexString string) (uint64, error) {
if idInHexString == "" {
return 0, errors.New("id-empty")
}
// First prepend 0x to the string
newID := fmt.Sprintf("0x%s", idInHexString)
d, err := strconv.ParseUint(newID, 0, 64)
if err != nil {
return 0, err
}
return d, nil
}