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keys.go
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keys.go
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// Copyright (c) 2017 Cisco and/or its affiliates.
//
// 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 vpp_l2
import (
"strings"
"github.com/ligato/vpp-agent/pkg/models"
)
// ModuleName is the module name used for models.
const ModuleName = "vpp.l2"
var (
ModelBridgeDomain = models.Register(&BridgeDomain{}, models.Spec{
Module: ModuleName,
Type: "bridge-domain",
Version: "v2",
})
ModelFIBEntry = models.Register(&FIBEntry{}, models.Spec{
Module: ModuleName,
Type: "fib",
Version: "v2",
}, models.WithNameTemplate("{{.BridgeDomain}}/mac/{{.PhysAddress}}"))
ModelXConnectPair = models.Register(&XConnectPair{}, models.Spec{
Module: ModuleName,
Type: "xconnect",
Version: "v2",
}, models.WithNameTemplate("{{.ReceiveInterface}}"))
)
// BridgeDomainKey returns the key used in NB DB to store the configuration of the
// given bridge domain.
func BridgeDomainKey(bdName string) string {
return models.Key(&BridgeDomain{
Name: bdName,
})
}
// FIBKey returns the key used in NB DB to store the configuration of the
// given L2 FIB entry.
func FIBKey(bdName string, fibMac string) string {
return models.Key(&FIBEntry{
BridgeDomain: bdName,
PhysAddress: fibMac,
})
}
// XConnectKey returns the key used in NB DB to store the configuration of the
// given xConnect (identified by RX interface).
func XConnectKey(rxIface string) string {
return models.Key(&XConnectPair{
ReceiveInterface: rxIface,
})
}
/* BD <-> interface binding (derived) */
const (
// bdInterfaceKeyTemplate is a template for (derived) key representing binding
// between interface and a bridge domain.
bdInterfaceKeyTemplate = "vpp/bd/{bd}/interface/{iface}"
)
const (
// InvalidKeyPart is used in key for parts which are invalid
InvalidKeyPart = "<invalid>"
)
/* BD <-> interface binding (derived) */
// BDInterfaceKey returns the key used to represent binding between the given interface
// and the bridge domain.
func BDInterfaceKey(bdName string, iface string) string {
if bdName == "" {
bdName = InvalidKeyPart
}
if iface == "" {
iface = InvalidKeyPart
}
key := strings.Replace(bdInterfaceKeyTemplate, "{bd}", bdName, 1)
key = strings.Replace(key, "{iface}", iface, 1)
return key
}
// ParseBDInterfaceKey parses key representing binding between interface and a bridge
// domain.
func ParseBDInterfaceKey(key string) (bdName string, iface string, isBDIfaceKey bool) {
keyComps := strings.Split(key, "/")
if len(keyComps) >= 5 && keyComps[0] == "vpp" && keyComps[1] == "bd" && keyComps[3] == "interface" {
iface = strings.Join(keyComps[4:], "/")
return keyComps[2], iface, true
}
return "", "", false
}