93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
// Copyright 2019 the Kilo 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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"strings"
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"github.com/coreos/go-iptables/iptables"
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)
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type statusExiter interface {
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ExitStatus() int
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}
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var _ statusExiter = (*iptables.Error)(nil)
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var _ statusExiter = statusError(0)
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type statusError int
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func (s statusError) Error() string {
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return fmt.Sprintf("%d", s)
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}
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func (s statusError) ExitStatus() int {
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return int(s)
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}
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type fakeClient map[string]Rule
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var _ iptablesClient = fakeClient(nil)
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func (f fakeClient) AppendUnique(table, chain string, spec ...string) error {
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r := &rule{table, chain, spec, nil}
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f[r.String()] = r
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return nil
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}
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func (f fakeClient) Delete(table, chain string, spec ...string) error {
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r := &rule{table, chain, spec, nil}
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delete(f, r.String())
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return nil
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}
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func (f fakeClient) Exists(table, chain string, spec ...string) (bool, error) {
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r := &rule{table, chain, spec, nil}
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_, ok := f[r.String()]
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return ok, nil
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}
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func (f fakeClient) ClearChain(table, name string) error {
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c := &chain{table, name, nil}
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for k := range f {
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if strings.HasPrefix(k, c.String()) {
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delete(f, k)
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}
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}
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f[c.String()] = c
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return nil
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}
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func (f fakeClient) DeleteChain(table, name string) error {
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c := &chain{table, name, nil}
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for k := range f {
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if strings.HasPrefix(k, c.String()) {
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return fmt.Errorf("cannot delete chain %s; rules exist", name)
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}
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}
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delete(f, c.String())
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return nil
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}
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func (f fakeClient) NewChain(table, name string) error {
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c := &chain{table, name, nil}
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if _, ok := f[c.String()]; ok {
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return statusError(1)
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}
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f[c.String()] = c
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return nil
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}
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