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iptables: use "-t nat" for NAT tests

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PiperOrigin-RevId: 295835807
This commit is contained in:
gVisor bot
2020-02-18 15:25:51 -08:00
parent 55c553ae8c
commit 247843bbc5
2 changed files with 12 additions and 3 deletions
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test/iptables/iptables_util.go
+10 -1
View File
@@ -27,7 +27,16 @@ const iptablesBinary = "iptables"
// filterTable calls `iptables -t filter` with the given args.
func filterTable(args ...string) error {
args = append([]string{"-t", "filter"}, args...)
return tableCmd("filter", args)
}
// natTable calls `iptables -t nat` with the given args.
func natTable(args ...string) error {
return tableCmd("nat", args)
}
func tableCmd(table string, args []string) error {
args = append([]string{"-t", table}, args...)
cmd := exec.Command(iptablesBinary, args...)
if out, err := cmd.CombinedOutput(); err != nil {
return fmt.Errorf("error running iptables with args %v\nerror: %v\noutput: %s", args, err, string(out))
test/iptables/nat.go
+2 -2
View File
@@ -38,7 +38,7 @@ func (NATRedirectUDPPort) Name() string {
// ContainerAction implements TestCase.ContainerAction.
func (NATRedirectUDPPort) ContainerAction(ip net.IP) error {
if err := filterTable("-t", "nat", "-A", "PREROUTING", "-p", "udp", "-j", "REDIRECT", "--to-ports", fmt.Sprintf("%d", redirectPort)); err != nil {
if err := natTable("-A", "PREROUTING", "-p", "udp", "-j", "REDIRECT", "--to-ports", fmt.Sprintf("%d", redirectPort)); err != nil {
return err
}
@@ -63,7 +63,7 @@ func (NATDropUDP) Name() string {
// ContainerAction implements TestCase.ContainerAction.
func (NATDropUDP) ContainerAction(ip net.IP) error {
if err := filterTable("-t", "nat", "-A", "PREROUTING", "-p", "udp", "-j", "REDIRECT", "--to-ports", fmt.Sprintf("%d", redirectPort)); err != nil {
if err := natTable("-A", "PREROUTING", "-p", "udp", "-j", "REDIRECT", "--to-ports", fmt.Sprintf("%d", redirectPort)); err != nil {
return err
}