49 lines
1.5 KiB
Go
49 lines
1.5 KiB
Go
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// This file contains various Targets.
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package iptables
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import (
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"gvisor.dev/gvisor/pkg/log"
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"gvisor.dev/gvisor/pkg/tcpip"
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)
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// UnconditionalAcceptTarget accepts all packets.
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type UnconditionalAcceptTarget struct{}
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// Action implements Target.Action.
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func (UnconditionalAcceptTarget) Action(packet tcpip.PacketBuffer) (Verdict, string) {
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return Accept, ""
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}
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// UnconditionalDropTarget denies all packets.
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type UnconditionalDropTarget struct{}
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// Action implements Target.Action.
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func (UnconditionalDropTarget) Action(packet tcpip.PacketBuffer) (Verdict, string) {
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return Drop, ""
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}
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// ErrorTarget logs an error and drops the packet. It represents a target that
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// should be unreachable.
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type ErrorTarget struct{}
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// Action implements Target.Action.
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func (ErrorTarget) Action(packet tcpip.PacketBuffer) (Verdict, string) {
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log.Warningf("ErrorTarget triggered.")
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return Drop, ""
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}
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