mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-11-04 04:08:16 +00:00
89 lines
2.6 KiB
Go
89 lines
2.6 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package sysctl
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import (
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"fmt"
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"reflect"
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"testing"
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"k8s.io/apimachinery/pkg/util/version"
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)
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func Test_getSafeSysctlAllowlist(t *testing.T) {
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tests := []struct {
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name string
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getVersion func() (*version.Version, error)
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want []string
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}{
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{
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name: "failed to get kernelVersion, only return safeSysctls with no kernelVersion limit",
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getVersion: func() (*version.Version, error) {
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return nil, fmt.Errorf("fork error")
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},
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want: []string{
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"kernel.shm_rmid_forced",
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"net.ipv4.ip_local_port_range",
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"net.ipv4.tcp_syncookies",
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"net.ipv4.ping_group_range",
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"net.ipv4.ip_unprivileged_port_start",
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},
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},
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{
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name: "kernelVersion is 3.18.0, return safeSysctls with no kernelVersion limit and net.ipv4.ip_local_reserved_ports",
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getVersion: func() (*version.Version, error) {
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kernelVersionStr := "3.18.0-957.27.2.el7.x86_64"
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return version.ParseGeneric(kernelVersionStr)
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},
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want: []string{
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"kernel.shm_rmid_forced",
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"net.ipv4.ip_local_port_range",
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"net.ipv4.tcp_syncookies",
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"net.ipv4.ping_group_range",
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"net.ipv4.ip_unprivileged_port_start",
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"net.ipv4.ip_local_reserved_ports",
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},
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},
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{
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name: "kernelVersion is 5.15.0, return safeSysctls with no kernelVersion limit and kernelVersion below 5.15.0",
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getVersion: func() (*version.Version, error) {
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kernelVersionStr := "5.15.0-75-generic"
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return version.ParseGeneric(kernelVersionStr)
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},
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want: []string{
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"kernel.shm_rmid_forced",
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"net.ipv4.ip_local_port_range",
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"net.ipv4.tcp_syncookies",
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"net.ipv4.ping_group_range",
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"net.ipv4.ip_unprivileged_port_start",
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"net.ipv4.ip_local_reserved_ports",
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"net.ipv4.tcp_keepalive_time",
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"net.ipv4.tcp_fin_timeout",
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"net.ipv4.tcp_keepalive_intvl",
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"net.ipv4.tcp_keepalive_probes",
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if got := getSafeSysctlAllowlist(tt.getVersion); !reflect.DeepEqual(got, tt.want) {
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t.Errorf("getSafeSysctlAllowlist() = %v, want %v", got, tt.want)
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}
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})
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}
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}
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