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intercept.go
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intercept.go
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/*
* Copyright (c) 2022 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 cni
const (
defInterceptRuleMgrType = "iptables"
)
// InterceptRuleMgr configures networking tables (e.g. iptables or nftables) for
// redirecting traffic to an MSM proxy.
type InterceptRuleMgr interface {
Program(netns string, redirect *Redirect) error
}
type InterceptRuleMgrCtor func() InterceptRuleMgr
var InterceptRuleMgrTypes = map[string]InterceptRuleMgrCtor{
"iptables": IptablesInterceptRuleMgrCtor,
}
// Constructor factory for known types of InterceptRuleMgr's
func GetInterceptRuleMgrCtor(interceptType string) InterceptRuleMgrCtor {
return InterceptRuleMgrTypes[interceptType]
}
// Constructor for iptables InterceptRuleMgr
func IptablesInterceptRuleMgrCtor() InterceptRuleMgr {
return newIPTables()
}