mirror of
https://github.com/juanfont/headscale.git
synced 2024-11-30 02:43:05 +00:00
516 lines
9.7 KiB
Go
516 lines
9.7 KiB
Go
package db
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import (
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"fmt"
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"net/netip"
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"strings"
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"testing"
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"github.com/davecgh/go-spew/spew"
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"github.com/google/go-cmp/cmp"
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"github.com/google/go-cmp/cmp/cmpopts"
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"github.com/juanfont/headscale/hscontrol/types"
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"github.com/juanfont/headscale/hscontrol/util"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"tailscale.com/net/tsaddr"
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"tailscale.com/types/ptr"
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)
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var mpp = func(pref string) *netip.Prefix {
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p := netip.MustParsePrefix(pref)
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return &p
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}
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var na = func(pref string) netip.Addr {
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return netip.MustParseAddr(pref)
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}
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var nap = func(pref string) *netip.Addr {
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n := na(pref)
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return &n
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}
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func TestIPAllocatorSequential(t *testing.T) {
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tests := []struct {
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name string
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dbFunc func() *HSDatabase
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prefix4 *netip.Prefix
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prefix6 *netip.Prefix
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getCount int
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want4 []netip.Addr
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want6 []netip.Addr
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}{
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{
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name: "simple",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 1,
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want4: []netip.Addr{
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na("100.64.0.1"),
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},
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want6: []netip.Addr{
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na("fd7a:115c:a1e0::1"),
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},
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},
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{
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name: "simple-v4",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix4: mpp("100.64.0.0/10"),
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getCount: 1,
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want4: []netip.Addr{
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na("100.64.0.1"),
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},
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},
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{
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name: "simple-v6",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 1,
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want6: []netip.Addr{
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na("fd7a:115c:a1e0::1"),
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},
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},
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{
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name: "simple-with-db",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "simple-with-db")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.1"),
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IPv6: nap("fd7a:115c:a1e0::1"),
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})
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return db
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 1,
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want4: []netip.Addr{
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na("100.64.0.2"),
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},
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want6: []netip.Addr{
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na("fd7a:115c:a1e0::2"),
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},
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},
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{
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name: "before-after-free-middle-in-db",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "before-after-free-middle-in-db")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.2"),
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IPv6: nap("fd7a:115c:a1e0::2"),
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})
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return db
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 2,
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want4: []netip.Addr{
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na("100.64.0.1"),
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na("100.64.0.3"),
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},
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want6: []netip.Addr{
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na("fd7a:115c:a1e0::1"),
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na("fd7a:115c:a1e0::3"),
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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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db := tt.dbFunc()
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alloc, _ := NewIPAllocator(
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db,
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tt.prefix4,
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tt.prefix6,
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types.IPAllocationStrategySequential,
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)
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spew.Dump(alloc)
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var got4s []netip.Addr
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var got6s []netip.Addr
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for range tt.getCount {
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got4, got6, err := alloc.Next()
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if err != nil {
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t.Fatalf("allocating next IP: %s", err)
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}
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if got4 != nil {
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got4s = append(got4s, *got4)
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}
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if got6 != nil {
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got6s = append(got6s, *got6)
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}
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}
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if diff := cmp.Diff(tt.want4, got4s, util.Comparers...); diff != "" {
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t.Errorf("IPAllocator 4s unexpected result (-want +got):\n%s", diff)
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}
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if diff := cmp.Diff(tt.want6, got6s, util.Comparers...); diff != "" {
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t.Errorf("IPAllocator 6s unexpected result (-want +got):\n%s", diff)
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}
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})
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}
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}
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func TestIPAllocatorRandom(t *testing.T) {
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tests := []struct {
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name string
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dbFunc func() *HSDatabase
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getCount int
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prefix4 *netip.Prefix
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prefix6 *netip.Prefix
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want4 bool
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want6 bool
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}{
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{
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name: "simple",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 1,
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want4: true,
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want6: true,
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},
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{
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name: "simple-v4",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix4: mpp("100.64.0.0/10"),
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getCount: 1,
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want4: true,
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want6: false,
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},
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{
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name: "simple-v6",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 1,
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want4: false,
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want6: true,
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},
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{
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name: "generate-lots-of-random",
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dbFunc: func() *HSDatabase {
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return nil
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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getCount: 1000,
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want4: true,
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want6: true,
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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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db := tt.dbFunc()
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alloc, _ := NewIPAllocator(db, tt.prefix4, tt.prefix6, types.IPAllocationStrategyRandom)
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spew.Dump(alloc)
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for range tt.getCount {
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got4, got6, err := alloc.Next()
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if err != nil {
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t.Fatalf("allocating next IP: %s", err)
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}
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t.Logf("addrs ipv4: %v, ipv6: %v", got4, got6)
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if tt.want4 {
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if got4 == nil {
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t.Fatalf("expected ipv4 addr, got nil")
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}
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}
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if tt.want6 {
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if got6 == nil {
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t.Fatalf("expected ipv4 addr, got nil")
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}
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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 TestBackfillIPAddresses(t *testing.T) {
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fullNodeP := func(i int) *types.Node {
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v4 := fmt.Sprintf("100.64.0.%d", i)
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v6 := fmt.Sprintf("fd7a:115c:a1e0::%d", i)
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return &types.Node{
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IPv4: nap(v4),
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IPv6: nap(v6),
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}
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}
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tests := []struct {
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name string
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dbFunc func() *HSDatabase
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prefix4 *netip.Prefix
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prefix6 *netip.Prefix
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want types.Nodes
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}{
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{
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name: "simple-backfill-ipv6",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "simple-backfill-ipv6")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.1"),
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})
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return db
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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want: types.Nodes{
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&types.Node{
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IPv4: nap("100.64.0.1"),
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IPv6: nap("fd7a:115c:a1e0::1"),
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},
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},
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},
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{
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name: "simple-backfill-ipv4",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "simple-backfill-ipv4")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv6: nap("fd7a:115c:a1e0::1"),
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})
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return db
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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want: types.Nodes{
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&types.Node{
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IPv4: nap("100.64.0.1"),
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IPv6: nap("fd7a:115c:a1e0::1"),
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},
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},
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},
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{
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name: "simple-backfill-remove-ipv6",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "simple-backfill-remove-ipv6")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.1"),
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IPv6: nap("fd7a:115c:a1e0::1"),
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})
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return db
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},
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prefix4: mpp("100.64.0.0/10"),
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want: types.Nodes{
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&types.Node{
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IPv4: nap("100.64.0.1"),
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},
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},
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},
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{
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name: "simple-backfill-remove-ipv4",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "simple-backfill-remove-ipv4")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.1"),
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IPv6: nap("fd7a:115c:a1e0::1"),
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})
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return db
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},
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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want: types.Nodes{
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&types.Node{
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IPv6: nap("fd7a:115c:a1e0::1"),
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},
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},
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},
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{
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name: "multi-backfill-ipv6",
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dbFunc: func() *HSDatabase {
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db := dbForTest(t, "simple-backfill-ipv6")
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user := types.User{Name: ""}
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db.DB.Save(&user)
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.1"),
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})
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.2"),
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})
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.3"),
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})
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db.DB.Save(&types.Node{
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User: user,
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IPv4: nap("100.64.0.4"),
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})
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return db
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},
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prefix4: mpp("100.64.0.0/10"),
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prefix6: mpp("fd7a:115c:a1e0::/48"),
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want: types.Nodes{
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fullNodeP(1),
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fullNodeP(2),
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fullNodeP(3),
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fullNodeP(4),
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},
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},
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}
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comps := append(util.Comparers, cmpopts.IgnoreFields(types.Node{},
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"ID",
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"User",
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"UserID",
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"Endpoints",
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"Hostinfo",
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"Routes",
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"CreatedAt",
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"UpdatedAt",
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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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db := tt.dbFunc()
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alloc, err := NewIPAllocator(
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db,
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tt.prefix4,
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tt.prefix6,
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types.IPAllocationStrategySequential,
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)
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if err != nil {
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t.Fatalf("failed to set up ip alloc: %s", err)
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}
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logs, err := db.BackfillNodeIPs(alloc)
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if err != nil {
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t.Fatalf("failed to backfill: %s", err)
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}
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t.Logf("backfill log: \n%s", strings.Join(logs, "\n"))
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got, err := db.ListNodes()
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if err != nil {
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t.Fatalf("failed to get nodes: %s", err)
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}
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if diff := cmp.Diff(tt.want, got, comps...); diff != "" {
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t.Errorf("Backfill unexpected result (-want +got):\n%s", diff)
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}
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})
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}
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}
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func TestIPAllocatorNextNoReservedIPs(t *testing.T) {
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alloc, err := NewIPAllocator(
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db,
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ptr.To(tsaddr.CGNATRange()),
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ptr.To(tsaddr.TailscaleULARange()),
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types.IPAllocationStrategySequential,
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)
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if err != nil {
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t.Fatalf("failed to set up ip alloc: %s", err)
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}
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// Validate that we do not give out 100.100.100.100
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nextQuad100, err := alloc.next(na("100.100.100.99"), ptr.To(tsaddr.CGNATRange()))
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require.NoError(t, err)
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assert.Equal(t, na("100.100.100.101"), *nextQuad100)
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// Validate that we do not give out fd7a:115c:a1e0::53
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nextQuad100v6, err := alloc.next(na("fd7a:115c:a1e0::52"), ptr.To(tsaddr.TailscaleULARange()))
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require.NoError(t, err)
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assert.Equal(t, na("fd7a:115c:a1e0::54"), *nextQuad100v6)
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// Validate that we do not give out fd7a:115c:a1e0::53
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nextChrome, err := alloc.next(na("100.115.91.255"), ptr.To(tsaddr.CGNATRange()))
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t.Logf("chrome: %s", nextChrome.String())
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require.NoError(t, err)
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assert.Equal(t, na("100.115.94.0"), *nextChrome)
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}
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