mirror of
https://github.com/akvorado/akvorado.git
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6118bb7aac
I did not benchmark it myself, but it was benchmarked here: https://github.com/osrg/gobgp/issues/1414#issuecomment-3067255941 Of course, no guarantee that this benchmark matches our use cases. Moreover, SubnetMap have been optimized to avoid parsing keys all the time. Also, the interface is a bit nicer and it uses netip.Prefix directly. The next step is to convert outlet/routing/provider/bmp.
720 lines
18 KiB
Go
720 lines
18 KiB
Go
// SPDX-FileCopyrightText: 2022 Free Mobile
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// SPDX-License-Identifier: AGPL-3.0-only
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package helpers_test
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import (
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"net/netip"
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"slices"
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"testing"
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"github.com/gin-gonic/gin"
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"github.com/go-viper/mapstructure/v2"
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"akvorado/common/helpers/yaml"
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"akvorado/common/helpers"
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)
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func TestSubnetMapUnmarshalHook(t *testing.T) {
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var nilMap map[string]string
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cases := []struct {
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Description string
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Input any
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Tests map[string]string
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Error bool
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YAML any
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}{
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{
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Description: "nil",
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Input: nilMap,
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Tests: map[string]string{
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"::ffff:203.0.113.1": "",
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},
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}, {
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Description: "empty",
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Input: gin.H{},
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Tests: map[string]string{
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"::ffff:203.0.113.1": "",
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},
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}, {
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Description: "IPv4 subnet",
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Input: gin.H{"203.0.113.0/24": "customer1"},
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Tests: map[string]string{
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"::ffff:203.0.113.18": "customer1",
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"::ffff:203.0.113.16": "customer1",
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"203.0.113.16": "",
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"::ffff:203.0.1.1": "",
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"203.0.1.1": "",
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"2001:db8:1::12": "",
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},
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}, {
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Description: "IPv4 IP",
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Input: gin.H{"203.0.113.1": "customer1"},
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Tests: map[string]string{
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"::ffff:203.0.113.1": "customer1",
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"2001:db8:1::12": "",
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},
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YAML: gin.H{"203.0.113.1/32": "customer1"},
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}, {
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Description: "IPv6 subnet",
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Input: gin.H{"2001:db8:1::/64": "customer2"},
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Tests: map[string]string{
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"2001:db8:1::1": "customer2",
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"2001:db8:1::2": "customer2",
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"2001:db8:2::2": "",
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},
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}, {
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Description: "IPv6-mapped-IPv4 subnet",
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Input: gin.H{"::ffff:203.0.113.0/120": "customer2"},
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Tests: map[string]string{
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"::ffff:203.0.113.10": "customer2",
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"::ffff:203.0.112.10": "",
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},
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YAML: gin.H{"203.0.113.0/24": "customer2"},
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}, {
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Description: "IPv6 IP",
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Input: gin.H{"2001:db8:1::1": "customer2"},
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Tests: map[string]string{
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"2001:db8:1::1": "customer2",
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"2001:db8:1::2": "",
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"2001:db8:2::2": "",
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},
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YAML: gin.H{"2001:db8:1::1/128": "customer2"},
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}, {
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Description: "Invalid subnet (1)",
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Input: gin.H{"192.0.2.1/38": "customer"},
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Error: true,
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}, {
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Description: "Invalid subnet (2)",
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Input: gin.H{"192.0.2.1/255.0.255.0": "customer"},
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Error: true,
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}, {
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Description: "Invalid subnet (3)",
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Input: gin.H{"2001:db8::/1000": "customer"},
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Error: true,
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}, {
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Description: "Invalid IP",
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Input: gin.H{"200.33.300.1": "customer"},
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Error: true,
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}, {
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Description: "Random key",
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Input: gin.H{"kfgdjgkfj": "customer"},
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Error: true,
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}, {
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Description: "Single value",
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Input: "customer",
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Tests: map[string]string{
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"::ffff:203.0.113.4": "customer",
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"2001:db8::1": "customer",
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},
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YAML: map[string]string{
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"::/0": "customer",
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},
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},
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}
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for _, tc := range cases {
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if tc.YAML == nil {
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if tc.Error {
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tc.YAML = map[string]string{}
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} else {
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tc.YAML = tc.Input
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}
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}
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t.Run(tc.Description, func(t *testing.T) {
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var tree helpers.SubnetMap[string]
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decoder, err := mapstructure.NewDecoder(&mapstructure.DecoderConfig{
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Result: &tree,
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ErrorUnused: true,
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Metadata: nil,
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DecodeHook: helpers.SubnetMapUnmarshallerHook[string](),
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})
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if err != nil {
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t.Fatalf("NewDecoder() error:\n%+v", err)
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}
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err = decoder.Decode(tc.Input)
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if err != nil && !tc.Error {
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t.Fatalf("Decode() error:\n%+v", err)
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} else if err == nil && tc.Error {
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t.Fatal("Decode() did not return an error")
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}
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got := map[string]string{}
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for k := range tc.Tests {
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v, _ := tree.Lookup(netip.MustParseAddr(k))
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got[k] = v
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}
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if diff := helpers.Diff(got, tc.Tests); diff != "" {
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t.Fatalf("Decode() (-got, +want):\n%s", diff)
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}
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// Try to unmarshal with YAML
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buf, err := yaml.Marshal(tree)
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if err != nil {
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t.Fatalf("yaml.Marshal() error:\n%+v", err)
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}
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got = map[string]string{}
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if err := yaml.Unmarshal(buf, &got); err != nil {
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t.Fatalf("yaml.Unmarshal() error:\n%+v", err)
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}
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if diff := helpers.Diff(got, tc.YAML); diff != "" {
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t.Fatalf("MarshalYAML() (-got, +want):\n%s", diff)
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}
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})
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}
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}
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func TestSubnetMapUnmarshalHookWithMapValue(t *testing.T) {
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type SomeStruct struct {
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Blip string
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Blop string
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}
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cases := []struct {
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Pos helpers.Pos
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Input gin.H
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Expected gin.H
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}{
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{
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Pos: helpers.Mark(),
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Input: gin.H{
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"blip": "some",
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"blop": "thing",
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},
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Expected: gin.H{
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"::/0": gin.H{
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"Blip": "some",
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"Blop": "thing",
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},
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},
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}, {
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Pos: helpers.Mark(),
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Input: gin.H{
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"::/0": gin.H{
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"blip": "some",
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"blop": "thing",
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},
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"203.0.113.14": gin.H{
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"blip": "other",
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"blop": "stuff",
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},
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},
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Expected: gin.H{
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"::/0": gin.H{
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"Blip": "some",
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"Blop": "thing",
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},
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"203.0.113.14/32": gin.H{
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"Blip": "other",
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"Blop": "stuff",
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},
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},
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},
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}
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for _, tc := range cases {
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t.Run("sub", func(t *testing.T) {
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var tree helpers.SubnetMap[SomeStruct]
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decoder, err := mapstructure.NewDecoder(&mapstructure.DecoderConfig{
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Result: &tree,
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ErrorUnused: true,
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Metadata: nil,
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DecodeHook: helpers.SubnetMapUnmarshallerHook[SomeStruct](),
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})
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if err != nil {
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t.Fatalf("%sNewDecoder() error:\n%+v", tc.Pos, err)
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}
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err = decoder.Decode(tc.Input)
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if err != nil {
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t.Fatalf("%sDecode() error:\n%+v", tc.Pos, err)
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}
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if diff := helpers.Diff(tree.ToMap(), tc.Expected); diff != "" {
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t.Fatalf("%sDecode() (-got, +want):\n%s", tc.Pos, diff)
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}
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})
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}
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}
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func TestSubnetMapParseKey(t *testing.T) {
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cases := []struct {
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Description string
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Input string
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Expected string
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Error bool
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}{
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{
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Description: "valid ipv4 address",
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Input: "10.0.0.1",
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Expected: "::ffff:10.0.0.1/128",
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},
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{
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Description: "valid ipv4 subnet",
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Input: "10.0.0.0/28",
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Expected: "::ffff:10.0.0.0/124",
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},
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{
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Description: "invalid ipv4 address",
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Input: "10.0.0",
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Error: true,
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},
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{
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Description: "valid ipv6 address",
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Input: "2001:db8:2::a",
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Expected: "2001:db8:2::a/128",
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},
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{
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Description: "valid ipv6 subnet",
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Input: "2001:db8:2::/48",
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Expected: "2001:db8:2::/48",
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},
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{
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Description: "invalid ipv6 address",
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Input: "2001:",
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Error: true,
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},
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{
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Description: "invalid string",
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Input: "foo-bar",
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Error: true,
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},
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}
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for _, tc := range cases {
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t.Run(tc.Description, func(t *testing.T) {
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res, err := helpers.SubnetMapParseKey(tc.Input)
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if err != nil && !tc.Error {
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t.Fatalf("SubnetMapParseKey() error:\n%+v", err)
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} else if err == nil && tc.Error {
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t.Fatal("SubnetMapParseKey() did not return an error")
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}
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if diff := helpers.Diff(res.String(), tc.Expected); err == nil && diff != "" {
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t.Fatalf("Decode() (-got, +want):\n%s", diff)
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}
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})
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}
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}
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func TestToMap(t *testing.T) {
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input := helpers.MustNewSubnetMap(map[string]string{
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"2001:db8::/64": "hello",
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"::ffff:192.0.2.0/120": "bye",
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})
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got := input.ToMap()
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expected := map[string]string{
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"2001:db8::/64": "hello",
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"192.0.2.0/24": "bye",
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}
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if diff := helpers.Diff(got, expected); diff != "" {
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t.Fatalf("ToMap() (-got, +want):\n%s", diff)
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}
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}
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func TestSubnetMapLookup(t *testing.T) {
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t.Run("nil", func(t *testing.T) {
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var sm *helpers.SubnetMap[string]
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value, ok := sm.Lookup(netip.MustParseAddr("::ffff:192.0.2.1"))
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if ok || value != "" {
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t.Fatalf("Lookup() == value=%q, ok=%v", value, ok)
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}
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})
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t.Run("empty", func(t *testing.T) {
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sm := &helpers.SubnetMap[string]{}
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value, ok := sm.Lookup(netip.MustParseAddr("::ffff:192.0.2.1"))
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if ok || value != "" {
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t.Fatalf("Lookup() == value=%q, ok=%v", value, ok)
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}
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})
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t.Run("populated", func(t *testing.T) {
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sm := helpers.MustNewSubnetMap(map[string]string{
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"192.0.2.0/24": "customer1",
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"2001:db8::/64": "customer2",
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"10.0.0.1": "specific",
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})
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cases := []struct {
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ip string
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expected string
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found bool
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}{
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{"::ffff:192.0.2.1", "customer1", true},
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{"::ffff:192.0.2.255", "customer1", true},
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{"::ffff:192.0.3.1", "", false},
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{"::ffff:10.0.0.1", "specific", true},
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{"::ffff:10.0.0.2", "", false},
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{"2001:db8::1", "customer2", true},
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{"2001:db8:1::1", "", false},
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}
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for _, tc := range cases {
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t.Run(tc.ip, func(t *testing.T) {
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value, ok := sm.Lookup(netip.MustParseAddr(tc.ip))
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if ok != tc.found || value != tc.expected {
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t.Fatalf("Lookup(%s) = (%q, %v), want (%q, %v)", tc.ip, value, ok, tc.expected, tc.found)
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}
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})
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}
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})
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}
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func TestSubnetMapLookupOrDefault(t *testing.T) {
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sm := helpers.MustNewSubnetMap(map[string]string{
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"192.0.2.0/24": "customer1",
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})
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t.Run("found", func(t *testing.T) {
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value := sm.LookupOrDefault(netip.MustParseAddr("::ffff:192.0.2.1"), "default")
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if value != "customer1" {
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t.Fatalf("LookupOrDefault() = %q, want %q", value, "customer1")
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}
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})
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t.Run("not found", func(t *testing.T) {
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value := sm.LookupOrDefault(netip.MustParseAddr("::ffff:192.0.3.1"), "default")
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if value != "default" {
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t.Fatalf("LookupOrDefault() = %q, want %q", value, "default")
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}
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})
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t.Run("nil", func(t *testing.T) {
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var sm *helpers.SubnetMap[string]
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value := sm.LookupOrDefault(netip.MustParseAddr("::ffff:192.0.2.1"), "default")
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if value != "default" {
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t.Fatalf("LookupOrDefault() = %q, want %q", value, "default")
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}
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})
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}
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func TestSubnetMapSet(t *testing.T) {
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sm := &helpers.SubnetMap[string]{}
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t.Run("set IPv6 subnet", func(t *testing.T) {
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prefix := netip.MustParsePrefix("2001:db8::/64")
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sm.Set(prefix, "test-value")
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value, ok := sm.Lookup(netip.MustParseAddr("2001:db8::1"))
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if !ok || value != "test-value" {
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t.Fatalf("Lookup() = (%q, %v), want (%q, %v)", value, ok, "test-value", true)
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}
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})
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t.Run("set IPv4-mapped IPv6 subnet", func(t *testing.T) {
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prefix := netip.MustParsePrefix("::ffff:192.0.2.0/120")
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sm.Set(prefix, "ipv4-mapped")
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value, ok := sm.Lookup(netip.MustParseAddr("::ffff:192.0.2.1"))
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if !ok || value != "ipv4-mapped" {
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t.Fatalf("Lookup() = (%q, %v), want (%q, %v)", value, ok, "ipv4-mapped", true)
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}
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})
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t.Run("overwrite existing value", func(t *testing.T) {
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prefix := netip.MustParsePrefix("2001:db8::/64")
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sm.Set(prefix, "new-value")
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value, ok := sm.Lookup(netip.MustParseAddr("2001:db8::1"))
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if !ok || value != "new-value" {
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t.Fatalf("Lookup() = (%q, %v), want (%q, %v)", value, ok, "new-value", true)
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}
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})
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}
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func TestSubnetMapSetPanic(t *testing.T) {
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sm := &helpers.SubnetMap[string]{}
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t.Run("panic on IPv4 subnet", func(t *testing.T) {
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defer func() {
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if r := recover(); r == nil {
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t.Fatal("Set() should panic with IPv4")
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}
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}()
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prefix := netip.MustParsePrefix("192.0.2.0/24")
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sm.Set(prefix, "should-panic")
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})
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}
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func TestSubnetMapUpdate(t *testing.T) {
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sm := &helpers.SubnetMap[int]{}
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t.Run("update new value", func(t *testing.T) {
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prefix := netip.MustParsePrefix("2001:db8::/64")
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sm.Update(prefix, func(old int, exists bool) int {
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if !exists {
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return 42
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}
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return old + 1
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})
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value, ok := sm.Lookup(netip.MustParseAddr("2001:db8::1"))
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if !ok || value != 42 {
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t.Fatalf("Lookup() = (%d, %v), want (%d, %v)", value, ok, 42, true)
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}
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})
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t.Run("update existing value", func(t *testing.T) {
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prefix := netip.MustParsePrefix("2001:db8::/64")
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sm.Update(prefix, func(old int, exists bool) int {
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if exists {
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return old + 10
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}
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return 0
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})
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value, ok := sm.Lookup(netip.MustParseAddr("2001:db8::1"))
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if !ok || value != 52 {
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t.Fatalf("Lookup() = (%d, %v), want (%d, %v)", value, ok, 52, true)
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}
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})
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}
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func TestSubnetMapUpdatePanic(t *testing.T) {
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sm := &helpers.SubnetMap[int]{}
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t.Run("panic on IPv4 subnet", func(t *testing.T) {
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defer func() {
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if r := recover(); r == nil {
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t.Fatal("Update() should panic with IPv4")
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}
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}()
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prefix := netip.MustParsePrefix("192.0.2.0/24")
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sm.Update(prefix, func(old int, exists bool) int { return 1 })
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})
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}
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func TestSubnetMapAll(t *testing.T) {
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t.Run("nil", func(t *testing.T) {
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var sm *helpers.SubnetMap[string]
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count := 0
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for range sm.All() {
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count++
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}
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if count != 0 {
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t.Fatalf("All() count = %d, want %d", count, 0)
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}
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})
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t.Run("empty", func(t *testing.T) {
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sm := &helpers.SubnetMap[string]{}
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count := 0
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for range sm.All() {
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count++
|
|
}
|
|
if count != 0 {
|
|
t.Fatalf("All() count = %d, want %d", count, 0)
|
|
}
|
|
})
|
|
|
|
t.Run("populated", func(t *testing.T) {
|
|
sm := helpers.MustNewSubnetMap(map[string]string{
|
|
"2001:db8::/64": "ipv6",
|
|
"::ffff:192.0.2.0/120": "ipv4-mapped",
|
|
})
|
|
|
|
items := make(map[string]string)
|
|
for prefix, value := range sm.All() {
|
|
items[prefix.String()] = value
|
|
}
|
|
|
|
expected := map[string]string{
|
|
"2001:db8::/64": "ipv6",
|
|
"::ffff:192.0.2.0/120": "ipv4-mapped",
|
|
}
|
|
|
|
if diff := helpers.Diff(items, expected); diff != "" {
|
|
t.Fatalf("All() (-got, +want):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestSubnetMapString(t *testing.T) {
|
|
t.Run("empty", func(t *testing.T) {
|
|
sm := &helpers.SubnetMap[string]{}
|
|
str := sm.String()
|
|
expected := "map[]"
|
|
if str != expected {
|
|
t.Fatalf("String() = %q, want %q", str, expected)
|
|
}
|
|
})
|
|
|
|
t.Run("populated", func(t *testing.T) {
|
|
sm := helpers.MustNewSubnetMap(map[string]string{
|
|
"192.0.2.0/24": "customer",
|
|
})
|
|
str := sm.String()
|
|
if diff := helpers.Diff(str, "map[192.0.2.0/24:customer]"); diff != "" {
|
|
t.Fatalf("String() (-got, +want):\n%s", diff)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestPrefixTo16(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
input string
|
|
expected string
|
|
}{
|
|
{
|
|
name: "IPv4 prefix",
|
|
input: "192.0.2.0/24",
|
|
expected: "::ffff:192.0.2.0/120",
|
|
},
|
|
{
|
|
name: "IPv4 host",
|
|
input: "192.0.2.1/32",
|
|
expected: "::ffff:192.0.2.1/128",
|
|
},
|
|
{
|
|
name: "IPv6 prefix unchanged",
|
|
input: "2001:db8::/64",
|
|
expected: "2001:db8::/64",
|
|
},
|
|
{
|
|
name: "IPv6 host unchanged",
|
|
input: "2001:db8::1/128",
|
|
expected: "2001:db8::1/128",
|
|
},
|
|
{
|
|
name: "IPv4-mapped IPv6 unchanged",
|
|
input: "::ffff:192.0.2.0/120",
|
|
expected: "::ffff:192.0.2.0/120",
|
|
},
|
|
}
|
|
|
|
for _, tc := range cases {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
prefix := netip.MustParsePrefix(tc.input)
|
|
result := helpers.PrefixTo16(prefix)
|
|
if result.String() != tc.expected {
|
|
t.Fatalf("PrefixTo16(%s) = %s, want %s", tc.input, result, tc.expected)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSubnetMapSupernets(t *testing.T) {
|
|
t.Run("nil", func(t *testing.T) {
|
|
var sm *helpers.SubnetMap[string]
|
|
count := 0
|
|
for range sm.Supernets(netip.MustParsePrefix("::ffff:192.0.2.1/128")) {
|
|
count++
|
|
}
|
|
if count != 0 {
|
|
t.Fatalf("Supernets() count = %d, want %d", count, 0)
|
|
}
|
|
})
|
|
|
|
t.Run("empty", func(t *testing.T) {
|
|
sm := &helpers.SubnetMap[string]{}
|
|
count := 0
|
|
for range sm.Supernets(netip.MustParsePrefix("::ffff:192.0.2.1/128")) {
|
|
count++
|
|
}
|
|
if count != 0 {
|
|
t.Fatalf("Supernets() count = %d, want %d", count, 0)
|
|
}
|
|
})
|
|
|
|
t.Run("hierarchical supernets", func(t *testing.T) {
|
|
sm := helpers.MustNewSubnetMap(map[string]string{
|
|
"192.0.0.0/16": "region",
|
|
"192.0.2.0/24": "site",
|
|
"192.0.2.0/28": "rack",
|
|
})
|
|
|
|
// Query for 192.0.2.1/32 should find supernets in reverse-CIDR order
|
|
var results []string
|
|
var prefixes []string
|
|
for prefix, value := range sm.Supernets(netip.MustParsePrefix("::ffff:192.0.2.1/128")) {
|
|
results = append(results, value)
|
|
prefixes = append(prefixes, prefix.String())
|
|
}
|
|
|
|
expectedValues := []string{"rack", "site", "region"}
|
|
expectedPrefixes := []string{"::ffff:192.0.2.0/124", "::ffff:192.0.2.0/120", "::ffff:192.0.0.0/112"}
|
|
|
|
if diff := helpers.Diff(results, expectedValues); diff != "" {
|
|
t.Errorf("Supernets() values (-got, +want):\n%s", diff)
|
|
}
|
|
if diff := helpers.Diff(prefixes, expectedPrefixes); diff != "" {
|
|
t.Errorf("Supernets() prefixes (-got, +want):\n%s", diff)
|
|
}
|
|
|
|
count := 0
|
|
for range sm.Supernets(netip.MustParsePrefix("::ffff:10.0.0.1/128")) {
|
|
count++
|
|
}
|
|
if count != 0 {
|
|
t.Fatalf("Supernets() count = %d, want %d", count, 0)
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestSubnetMapAllMaybeSorted(t *testing.T) {
|
|
t.Run("nil", func(t *testing.T) {
|
|
var sm *helpers.SubnetMap[string]
|
|
count := 0
|
|
for range sm.AllMaybeSorted() {
|
|
count++
|
|
}
|
|
if count != 0 {
|
|
t.Fatalf("AllMaybeSorted() count = %d, want %d", count, 0)
|
|
}
|
|
})
|
|
|
|
t.Run("empty", func(t *testing.T) {
|
|
sm := &helpers.SubnetMap[string]{}
|
|
count := 0
|
|
for range sm.AllMaybeSorted() {
|
|
count++
|
|
}
|
|
if count != 0 {
|
|
t.Fatalf("AllMaybeSorted() count = %d, want %d", count, 0)
|
|
}
|
|
})
|
|
|
|
t.Run("sorted vs unsorted", func(t *testing.T) {
|
|
sm := helpers.MustNewSubnetMap(map[string]string{
|
|
"192.0.2.0/28": "rack",
|
|
"192.0.0.0/16": "region",
|
|
"192.0.2.0/24": "site",
|
|
"2001:db8:1::/64": "ipv6-site1",
|
|
"2001:db8::/32": "ipv6-region",
|
|
"2001:db8:2::/64": "ipv6-site2",
|
|
})
|
|
|
|
// Collect results from All() (potentially unsorted)
|
|
var allPrefixes []string
|
|
for prefix := range sm.All() {
|
|
allPrefixes = append(allPrefixes, prefix.String())
|
|
}
|
|
|
|
// Collect results from AllMaybeSorted() (sorted during tests)
|
|
var sortedPrefixes []string
|
|
for prefix := range sm.AllMaybeSorted() {
|
|
sortedPrefixes = append(sortedPrefixes, prefix.String())
|
|
}
|
|
|
|
// Expected sorted order: IPv6 addresses first (sorted), then IPv4-mapped IPv6 (sorted)
|
|
expectedPrefixes := []string{
|
|
"::ffff:192.0.0.0/112",
|
|
"::ffff:192.0.2.0/120",
|
|
"::ffff:192.0.2.0/124",
|
|
"2001:db8::/32",
|
|
"2001:db8:1::/64",
|
|
"2001:db8:2::/64",
|
|
}
|
|
|
|
// AllMaybeSorted() should be sorted during tests
|
|
if diff := helpers.Diff(sortedPrefixes, expectedPrefixes); diff != "" {
|
|
t.Errorf("AllMaybeSorted() prefixes (-got, +want):\n%s", diff)
|
|
}
|
|
|
|
// All() and AllMaybeSorted() should contain the same elements (but potentially different order)
|
|
if len(allPrefixes) != len(sortedPrefixes) {
|
|
t.Errorf("All() returned %d prefixes, AllMaybeSorted() returned %d", len(allPrefixes), len(sortedPrefixes))
|
|
}
|
|
|
|
// Verify that All() and AllMaybeSorted() return different orders (otherwise test is meaningless)
|
|
if slices.Equal(allPrefixes, sortedPrefixes) {
|
|
t.Skip("All() and AllMaybeSorted() returned identical order")
|
|
}
|
|
})
|
|
}
|