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listener.go
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/
listener.go
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// Copyright 2018 Authors of Cilium
//
// 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 ipcache
import (
"net"
"github.com/cilium/cilium/pkg/identity"
)
// CacheModification represents the type of operation performed upon IPCache.
type CacheModification string
const (
// Upsert represents Upsertion into IPCache.
Upsert CacheModification = "Upsert"
// Delete represents deletion of an entry in IPCache.
Delete CacheModification = "Delete"
)
// IPIdentityMappingListener represents a component that is interested in
// learning about IP to Identity mapping events.
type IPIdentityMappingListener interface {
// OnIPIdentityCacheChange will be called whenever there the state of the
// IPCache has changed. If an existing CIDR->ID mapping is updated, then
// oldID is not nil; otherwise it is nil.
// hostIP is the IP address of the location of the cidr.
// hostIP is optional and may only be non-nil for an Upsert modification.
OnIPIdentityCacheChange(modType CacheModification, cidr net.IPNet, oldHostIP, newHostIP net.IP,
oldID *identity.NumericIdentity, newID identity.NumericIdentity, encryptKey uint8)
// OnIPIdentityCacheGC will be called to sync other components which are
// reliant upon the IPIdentityCache with the IPIdentityCache.
OnIPIdentityCacheGC()
}