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https://github.com/hanzoai/visor.git
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Parth SarthiandgVisor bot
1068b58c2a
- Add iptables-nft test runner and integration test target. - Makefile to run the tests; will add buildkite later. PiperOrigin-RevId: 966434729
72 lines
2.0 KiB
Go
72 lines
2.0 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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package iptables
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import (
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"fmt"
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"os/exec"
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)
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// NFT indicates whether to use iptables-nft instead of iptables-legacy.
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var NFT = false
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// filterTable calls `ip{6}tables -t filter` with the given args.
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func filterTable(ipv6 bool, args ...string) error {
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return tableCmd(ipv6, "filter", args)
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}
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// natTable calls `ip{6}tables -t nat` with the given args.
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func natTable(ipv6 bool, args ...string) error {
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return tableCmd(ipv6, "nat", args)
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}
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func tableCmd(ipv6 bool, table string, args []string) error {
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args = append([]string{"-t", table}, args...)
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binary := "iptables-legacy"
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if ipv6 {
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binary = "ip6tables-legacy"
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}
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if NFT {
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binary = "iptables-nft"
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if ipv6 {
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binary = "ip6tables-nft"
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}
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}
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cmd := exec.Command(binary, args...)
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if out, err := cmd.CombinedOutput(); err != nil {
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return fmt.Errorf("error running %s with args %v\nerror: %v\noutput: %s", binary, args, err, string(out))
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}
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return nil
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}
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// filterTableRules is like filterTable, but runs multiple iptables commands.
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func filterTableRules(ipv6 bool, argsList [][]string) error {
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return tableRules(ipv6, "filter", argsList)
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}
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// natTableRules is like natTable, but runs multiple iptables commands.
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func natTableRules(ipv6 bool, argsList [][]string) error {
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return tableRules(ipv6, "nat", argsList)
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}
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func tableRules(ipv6 bool, table string, argsList [][]string) error {
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for _, args := range argsList {
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if err := tableCmd(ipv6, table, args); err != nil {
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return err
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}
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}
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return nil
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}
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