114 lines
2.8 KiB
Go
114 lines
2.8 KiB
Go
// Copyright 2017-2020 CNI 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 sysctl
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import (
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"fmt"
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"math/rand"
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"runtime"
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"strings"
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"github.com/containernetworking/plugins/pkg/ns"
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"github.com/containernetworking/plugins/pkg/testutils"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/vishvananda/netlink"
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)
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const (
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sysctlDotKeyTemplate = "net.ipv4.conf.%s.proxy_arp"
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sysctlSlashKeyTemplate = "net/ipv4/conf/%s/proxy_arp"
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)
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var _ = Describe("Sysctl tests", func() {
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var testIfaceName string
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var cleanup func()
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BeforeEach(func() {
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// Save a reference to the original namespace,
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// Add a new NS
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currNs, err := ns.GetCurrentNS()
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Expect(err).NotTo(HaveOccurred())
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testNs, err := testutils.NewNS()
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Expect(err).NotTo(HaveOccurred())
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testIfaceName = fmt.Sprintf("cnitest.%d", rand.Intn(100000))
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testIface := &netlink.Dummy{
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LinkAttrs: netlink.LinkAttrs{
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Name: testIfaceName,
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Namespace: netlink.NsFd(int(testNs.Fd())),
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},
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}
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err = netlink.LinkAdd(testIface)
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Expect(err).NotTo(HaveOccurred())
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runtime.LockOSThread()
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err = testNs.Set()
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Expect(err).NotTo(HaveOccurred())
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cleanup = func() {
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netlink.LinkDel(testIface)
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currNs.Set()
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}
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})
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AfterEach(func() {
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cleanup()
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})
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Describe("Sysctl", func() {
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It("reads keys with dot separators", func() {
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sysctlIfaceName := strings.Replace(testIfaceName, ".", "/", -1)
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sysctlKey := fmt.Sprintf(sysctlDotKeyTemplate, sysctlIfaceName)
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_, err := Sysctl(sysctlKey)
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Describe("Sysctl", func() {
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It("reads keys with slash separators", func() {
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sysctlKey := fmt.Sprintf(sysctlSlashKeyTemplate, testIfaceName)
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_, err := Sysctl(sysctlKey)
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Describe("Sysctl", func() {
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It("writes keys with dot separators", func() {
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sysctlIfaceName := strings.Replace(testIfaceName, ".", "/", -1)
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sysctlKey := fmt.Sprintf(sysctlDotKeyTemplate, sysctlIfaceName)
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_, err := Sysctl(sysctlKey, "1")
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Expect(err).NotTo(HaveOccurred())
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})
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})
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Describe("Sysctl", func() {
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It("writes keys with slash separators", func() {
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sysctlKey := fmt.Sprintf(sysctlSlashKeyTemplate, testIfaceName)
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_, err := Sysctl(sysctlKey, "1")
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Expect(err).NotTo(HaveOccurred())
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})
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})
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})
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