优化IP名单同步速度

internal/firewalls/firewall_nftables.go

@@ -88,11 +88,15 @@ type blockIPItem struct {
 }
 
 func NewNFTablesFirewall() (*NFTablesFirewall, error) {
+	conn, err := nftables.NewConn()
+	if err != nil {
+		return nil, err
+	}
 	var firewall = &NFTablesFirewall{
-		conn:        nftables.NewConn(),
+		conn:        conn,
 		dropIPQueue: make(chan *blockIPItem, 4096),
 	}
-	err := firewall.init()
+	err = firewall.init()
 	if err != nil {
 		return nil, err
 	}

internal/firewalls/nftables/chain.go

@@ -1,6 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 //go:build linux
-// +build linux
 
 package nftables
 

internal/firewalls/nftables/chain_policy.go

@@ -1,4 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build linux
 
 package nftables
 

internal/firewalls/nftables/chain_test.go

@@ -1,6 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 //go:build linux
-// +build linux
 
 package nftables_test
 
@@ -11,7 +10,10 @@ import (
 )
 
 func getIPv4Chain(t *testing.T) *nftables.Chain {
-	var conn = nftables.NewConn()
+	conn, err := nftables.NewConn()
+	if err != nil {
+		t.Fatal(err)
+	}
 	table, err := conn.GetTable("test_ipv4", nftables.TableFamilyIPv4)
 	if err != nil {
 		if err == nftables.ErrTableNotFound {

internal/firewalls/nftables/conn.go

@@ -15,10 +15,14 @@ type Conn struct {
 	rawConn *nft.Conn
 }
 
-func NewConn() *Conn {
-	return &Conn{
-		rawConn: &nft.Conn{},
+func NewConn() (*Conn, error) {
+	conn, err := nft.New()
+	if err != nil {
+		return nil, err
 	}
+	return &Conn{
+		rawConn: conn,
+	}, nil
 }
 
 func (this *Conn) Raw() *nft.Conn {

internal/firewalls/nftables/errors.go

@@ -4,7 +4,10 @@
 
 package nftables
 
-import "errors"
+import (
+	"errors"
+	"strings"
+)
 
 var ErrTableNotFound = errors.New("table not found")
 var ErrChainNotFound = errors.New("chain not found")
@@ -15,5 +18,5 @@ func IsNotFound(err error) bool {
 	if err == nil {
 		return false
 	}
-	return err == ErrTableNotFound || err == ErrChainNotFound || err == ErrSetNotFound || err == ErrRuleNotFound
+	return err == ErrTableNotFound || err == ErrChainNotFound || err == ErrSetNotFound || err == ErrRuleNotFound || strings.Contains(err.Error(), "no such file or directory")
 }

internal/firewalls/nftables/expration.go

@@ -0,0 +1,62 @@
+// Copyright 2023 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package nftables
+
+import (
+	"sync"
+	"time"
+)
+
+type Expiration struct {
+	m map[string]time.Time // key => expires time
+
+	lastGCAt int64
+
+	locker sync.RWMutex
+}
+
+func NewExpiration() *Expiration {
+	return &Expiration{
+		m: map[string]time.Time{},
+	}
+}
+
+func (this *Expiration) AddUnsafe(key []byte, expires time.Time) {
+	this.m[string(key)] = expires
+}
+
+func (this *Expiration) Add(key []byte, expires time.Time) {
+	this.locker.Lock()
+	this.m[string(key)] = expires
+	this.gc()
+	this.locker.Unlock()
+}
+
+func (this *Expiration) Remove(key []byte) {
+	this.locker.Lock()
+	delete(this.m, string(key))
+	this.locker.Unlock()
+}
+
+func (this *Expiration) Contains(key []byte) bool {
+	this.locker.RLock()
+	_, ok := this.m[string(key)]
+	this.locker.RUnlock()
+	return ok
+}
+
+func (this *Expiration) gc() {
+	// we won't gc too frequently
+	var currentTime = time.Now().Unix()
+	if this.lastGCAt >= currentTime {
+		return
+	}
+	this.lastGCAt = currentTime
+
+	var now = time.Now().Add(-10 * time.Second) // gc elements expired before 10 seconds ago
+	for key, expires := range this.m {
+		if expires.Year() >= 2000 && now.After(expires) {
+			delete(this.m, key)
+		}
+	}
+}

internal/firewalls/nftables/expration_test.go

@@ -0,0 +1,51 @@
+// Copyright 2023 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+
+package nftables_test
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/firewalls/nftables"
+	"github.com/iwind/TeaGo/rands"
+	"github.com/iwind/TeaGo/types"
+	"net"
+	"testing"
+	"time"
+)
+
+func TestExpiration_Add(t *testing.T) {
+	var expiration = nftables.NewExpiration()
+	{
+		expiration.Add([]byte{'a', 'b', 'c'}, time.Now())
+		t.Log(expiration.Contains([]byte{'a', 'b', 'c'}))
+	}
+	{
+		expiration.Add([]byte{'a', 'b', 'c'}, time.Now().Add(-1*time.Second))
+		t.Log(expiration.Contains([]byte{'a', 'b', 'c'}))
+	}
+	{
+		expiration.Add([]byte{'a', 'b', 'c'}, time.Now().Add(-10*time.Second))
+		t.Log(expiration.Contains([]byte{'a', 'b', 'c'}))
+	}
+	{
+		expiration.Add([]byte{'a', 'b', 'c'}, time.Now().Add(1*time.Second))
+		expiration.Remove([]byte{'a', 'b', 'c'})
+		t.Log(expiration.Contains([]byte{'a', 'b', 'c'}))
+	}
+	{
+		expiration.Add(net.ParseIP("10.254.0.75").To4(), time.Now())
+		t.Log(expiration.Contains(net.ParseIP("10.254.0.75").To4()))
+	}
+}
+
+func BenchmarkNewExpiration(b *testing.B) {
+	var expiration = nftables.NewExpiration()
+	for i := 0; i < 10_000; i++ {
+		expiration.Add([]byte(types.String(types.String(rands.Int(0, 255))+"."+types.String(rands.Int(0, 255))+"."+types.String(rands.Int(0, 255))+"."+types.String(rands.Int(0, 255)))), time.Now().Add(3600*time.Second))
+	}
+	b.ResetTimer()
+
+	b.RunParallel(func(pb *testing.PB) {
+		for pb.Next() {
+			expiration.Add([]byte(types.String(types.String(rands.Int(0, 255))+"."+types.String(rands.Int(0, 255))+"."+types.String(rands.Int(0, 255))+"."+types.String(rands.Int(0, 255)))), time.Now().Add(3600*time.Second))
+		}
+	})
+}

internal/firewalls/nftables/family.go

@@ -1,4 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build linux
 
 package nftables
 

internal/firewalls/nftables/installer.go

@@ -1,4 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+//go:build linux
 
 package nftables
 

internal/firewalls/nftables/rule.go

@@ -1,4 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build linux
 
 package nftables
 

internal/firewalls/nftables/set.go

@@ -1,6 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 //go:build linux
-// +build linux
 
 package nftables
 
@@ -35,17 +34,25 @@ type Set struct {
 	conn   *Conn
 	rawSet *nft.Set
 	batch  *SetBatch
+
+	expiration *Expiration
 }
 
 func NewSet(conn *Conn, rawSet *nft.Set) *Set {
-	return &Set{
+	var set = &Set{
 		conn:       conn,
 		rawSet:     rawSet,
+		expiration: nil,
 		batch: &SetBatch{
 			conn:   conn,
 			rawSet: rawSet,
 		},
 	}
+
+	// retrieve set elements to improve "delete" speed
+	set.initElements()
+
+	return set
 }
 
 func (this *Set) Raw() *nft.Set {
@@ -57,11 +64,21 @@ func (this *Set) Name() string {
 }
 
 func (this *Set) AddElement(key []byte, options *ElementOptions, overwrite bool) error {
+	// check if already exists
+	if this.expiration != nil && !overwrite && this.expiration.Contains(key) {
+		return nil
+	}
+
+	var expiresTime = time.Time{}
 	var rawElement = nft.SetElement{
 		Key: key,
 	}
 	if options != nil {
 		rawElement.Timeout = options.Timeout
+
+		if options.Timeout > 0 {
+			expiresTime = time.UnixMilli(time.Now().UnixMilli() + options.Timeout.Milliseconds())
+		}
 	}
 	err := this.conn.Raw().SetAddElements(this.rawSet, []nft.SetElement{
 		rawElement,
@@ -71,9 +88,19 @@ func (this *Set) AddElement(key []byte, options *ElementOptions, overwrite bool)
 	}
 
 	err = this.conn.Commit()
-	if err != nil {
+	if err == nil {
+		if this.expiration != nil {
+			this.expiration.Add(key, expiresTime)
+		}
+	} else {
+		var isFileExistsErr = strings.Contains(err.Error(), "file exists")
+		if !overwrite && isFileExistsErr {
+			// ignore file exists error
+			return nil
+		}
+
 		// retry if exists
-		if overwrite && strings.Contains(err.Error(), "file exists") {
+		if overwrite && isFileExistsErr {
 			deleteErr := this.conn.Raw().SetDeleteElements(this.rawSet, []nft.SetElement{
 				{
 					Key: key,
@@ -85,6 +112,11 @@ func (this *Set) AddElement(key []byte, options *ElementOptions, overwrite bool)
 				})
 				if err == nil {
 					err = this.conn.Commit()
+					if err == nil {
+						if this.expiration != nil {
+							this.expiration.Add(key, expiresTime)
+						}
+					}
 				}
 			}
 		}
@@ -107,6 +139,11 @@ func (this *Set) AddIPElement(ip string, options *ElementOptions, overwrite bool
 }
 
 func (this *Set) DeleteElement(key []byte) error {
+	// if set element does not exist, we return immediately
+	if this.expiration != nil && !this.expiration.Contains(key) {
+		return nil
+	}
+
 	err := this.conn.Raw().SetDeleteElements(this.rawSet, []nft.SetElement{
 		{
 			Key: key,
@@ -116,9 +153,17 @@ func (this *Set) DeleteElement(key []byte) error {
 		return err
 	}
 	err = this.conn.Commit()
-	if err != nil {
+	if err == nil {
+		if this.expiration != nil {
+			this.expiration.Remove(key)
+		}
+	} else {
 		if strings.Contains(err.Error(), "no such file or directory") {
 			err = nil
+
+			if this.expiration != nil {
+				this.expiration.Remove(key)
+			}
 		}
 	}
 	return err

internal/firewalls/nftables/set_data_type.go

@@ -1,4 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build linux
 
 package nftables
 

internal/firewalls/nftables/set_ext.go

@@ -0,0 +1,8 @@
+// Copyright 2023 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+//go:build linux && !plus
+
+package nftables
+
+func (this *Set) initElements() {
+	// NOT IMPLEMENTED
+}

internal/firewalls/nftables/set_test.go

@@ -34,7 +34,7 @@ func getIPv4Set(t *testing.T) *nftables.Set {
 
 func TestSet_AddElement(t *testing.T) {
 	var set = getIPv4Set(t)
-	err := set.AddElement(net.ParseIP("192.168.2.31").To4(), &nftables.ElementOptions{Timeout: 86400 * time.Second})
+	err := set.AddElement(net.ParseIP("192.168.2.31").To4(), &nftables.ElementOptions{Timeout: 86400 * time.Second}, false)
 	if err != nil {
 		t.Fatal(err)
 	}

internal/firewalls/nftables/table.go

@@ -1,6 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 //go:build linux
-// +build linux
 
 package nftables
 

internal/firewalls/nftables/table_test.go

@@ -1,6 +1,5 @@
 // Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
 //go:build linux
-// +build linux
 
 package nftables_test
 
@@ -10,7 +9,10 @@ import (
 )
 
 func getIPv4Table(t *testing.T) *nftables.Table {
-	var conn = nftables.NewConn()
+	conn, err := nftables.NewConn()
+	if err != nil {
+		t.Fatal(err)
+	}
 	table, err := conn.GetTable("test_ipv4", nftables.TableFamilyIPv4)
 	if err != nil {
 		if err == nftables.ErrTableNotFound {

internal/iplibrary/ip_list_db.go

@@ -18,12 +18,16 @@ type IPListDB struct {
 	db *dbs.DB
 
 	itemTableName    string
+	versionTableName string
 
 	deleteExpiredItemsStmt   *dbs.Stmt
 	deleteItemStmt           *dbs.Stmt
 	insertItemStmt           *dbs.Stmt
 	selectItemsStmt          *dbs.Stmt
-	selectMaxVersionStmt   *dbs.Stmt
+	selectMaxItemVersionStmt *dbs.Stmt
+
+	selectVersionStmt *dbs.Stmt
+	updateVersionStmt *dbs.Stmt
 
 	cleanTicker *time.Ticker
 
@@ -35,6 +39,7 @@ type IPListDB struct {
 func NewIPListDB() (*IPListDB, error) {
 	var db = &IPListDB{
 		itemTableName:    "ipItems",
+		versionTableName: "versions",
 		dir:              filepath.Clean(Tea.Root + "/data"),
 		cleanTicker:      time.NewTicker(24 * time.Hour),
 	}
@@ -108,6 +113,15 @@ ON "` + this.itemTableName + `" (
 		return err
 	}
 
+	_, err = db.Exec(`CREATE TABLE IF NOT EXISTS "` + this.versionTableName + `" (
+  "id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
+  "version" integer DEFAULT 0
+);
+`)
+	if err != nil {
+		return err
+	}
+
 	// 初始化SQL语句
 	this.deleteExpiredItemsStmt, err = this.db.Prepare(`DELETE FROM "` + this.itemTableName + `" WHERE  "expiredAt">0 AND "expiredAt"<?`)
 	if err != nil {
@@ -129,7 +143,20 @@ ON "` + this.itemTableName + `" (
 		return err
 	}
 
-	this.selectMaxVersionStmt, err = this.db.Prepare(`SELECT "version" FROM "` + this.itemTableName + `" ORDER BY "id" DESC LIMIT 1`)
+	this.selectMaxItemVersionStmt, err = this.db.Prepare(`SELECT "version" FROM "` + this.itemTableName + `" ORDER BY "id" DESC LIMIT 1`)
+	if err != nil {
+		return err
+	}
+
+	this.selectVersionStmt, err = this.db.Prepare(`SELECT "version" FROM "` + this.versionTableName + `" LIMIT 1`)
+	if err != nil {
+		return err
+	}
+
+	this.updateVersionStmt, err = this.db.Prepare(`REPLACE INTO "` + this.versionTableName + `" ("id", "version") VALUES (1, ?)`)
+	if err != nil {
+		return err
+	}
 
 	this.db = db
 
@@ -172,13 +199,17 @@ func (this *IPListDB) AddItem(item *pb.IPItem) error {
 
 	// 如果是删除，则不再创建新记录
 	if item.IsDeleted {
-		return nil
+		return this.UpdateMaxVersion(item.Version)
 	}
 
 	_, err = this.insertItemStmt.Exec(item.ListId, item.ListType, item.IsGlobal, item.Type, item.Id, item.IpFrom, item.IpTo, item.ExpiredAt, item.EventLevel, item.IsDeleted, item.Version, item.NodeId, item.ServerId)
+	if err != nil {
 		return err
 	}
 
+	return this.UpdateMaxVersion(item.Version)
+}
+
 func (this *IPListDB) ReadItems(offset int64, size int64) (items []*pb.IPItem, err error) {
 	if this.isClosed {
 		return
@@ -210,7 +241,22 @@ func (this *IPListDB) ReadMaxVersion() int64 {
 		return 0
 	}
 
-	var row = this.selectMaxVersionStmt.QueryRow()
+	// from version table
+	{
+		var row = this.selectVersionStmt.QueryRow()
+		if row == nil {
+			return 0
+		}
+		var version int64
+		err := row.Scan(&version)
+		if err == nil {
+			return version
+		}
+	}
+
+	// from items table
+	{
+		var row = this.selectMaxItemVersionStmt.QueryRow()
 		if row == nil {
 			return 0
 		}
@@ -219,18 +265,39 @@ func (this *IPListDB) ReadMaxVersion() int64 {
 		if err != nil {
 			return 0
 		}
+
 		return version
 	}
+}
+
+// UpdateMaxVersion 修改版本号
+func (this *IPListDB) UpdateMaxVersion(version int64) error {
+	if this.isClosed {
+		return nil
+	}
+
+	_, err := this.updateVersionStmt.Exec(version)
+	return err
+}
 
 func (this *IPListDB) Close() error {
 	this.isClosed = true
 
 	if this.db != nil {
-		_ = this.deleteExpiredItemsStmt.Close()
-		_ = this.deleteItemStmt.Close()
-		_ = this.insertItemStmt.Close()
-		_ = this.selectItemsStmt.Close()
-		_ = this.selectMaxVersionStmt.Close()
+		for _, stmt := range []*dbs.Stmt{
+			this.deleteExpiredItemsStmt,
+			this.deleteItemStmt,
+			this.insertItemStmt,
+			this.selectItemsStmt,
+			this.selectMaxItemVersionStmt, // ipItems table
+
+			this.selectVersionStmt, // versions table
+			this.updateVersionStmt,
+		} {
+			if stmt != nil {
+				_ = stmt.Close()
+			}
+		}
 
 		return this.db.Close()
 	}

internal/iplibrary/ip_list_db_test.go

@@ -79,3 +79,15 @@ func TestIPListDB_ReadMaxVersion(t *testing.T) {
 	}
 	t.Log(db.ReadMaxVersion())
 }
+
+func TestIPListDB_UpdateMaxVersion(t *testing.T) {
+	db, err := iplibrary.NewIPListDB()
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = db.UpdateMaxVersion(1027)
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log(db.ReadMaxVersion())
+}

internal/iplibrary/manager_ip_list.go

@@ -47,17 +47,20 @@ type IPListManager struct {
 
 	db *IPListDB
 
-	version  int64
-	pageSize int64
+	lastVersion   int64
+	fetchPageSize int64
 
 	listMap map[int64]*IPList
 	locker  sync.Mutex
+
+	isFirstTime bool
 }
 
 func NewIPListManager() *IPListManager {
 	return &IPListManager{
-		pageSize: 1000,
+		fetchPageSize: 5_000,
 		listMap:       map[int64]*IPList{},
+		isFirstTime:   true,
 	}
 }
 
@@ -117,11 +120,11 @@ func (this *IPListManager) init() {
 		_ = db.DeleteExpiredItems()
 
 		// 本地数据库中最大版本号
-		this.version = db.ReadMaxVersion()
+		this.lastVersion = db.ReadMaxVersion()
 
 		// 从本地数据库中加载
 		var offset int64 = 0
-		var size int64 = 1000
+		var size int64 = 2_000
 		for {
 			items, err := db.ReadItems(offset, size)
 			var l = len(items)
@@ -148,6 +151,11 @@ func (this *IPListManager) loop() error {
 		return nil
 	}
 
+	// 第一次同步则打印信息
+	if this.isFirstTime {
+		remotelogs.Println("IP_LIST_MANAGER", "initializing ip items ...")
+	}
+
 	for {
 		hasNext, err := this.fetch()
 		if err != nil {
@@ -159,6 +167,12 @@ func (this *IPListManager) loop() error {
 		time.Sleep(1 * time.Second)
 	}
 
+	// 第一次同步则打印信息
+	if this.isFirstTime {
+		this.isFirstTime = false
+		remotelogs.Println("IP_LIST_MANAGER", "finished initializing ip items")
+	}
+
 	return nil
 }
 
@@ -168,8 +182,8 @@ func (this *IPListManager) fetch() (hasNext bool, err error) {
 		return false, err
 	}
 	itemsResp, err := rpcClient.IPItemRPC.ListIPItemsAfterVersion(rpcClient.Context(), &pb.ListIPItemsAfterVersionRequest{
-		Version: this.version,
-		Size:    this.pageSize,
+		Version: this.lastVersion,
+		Size:    this.fetchPageSize,
 	})
 	if err != nil {
 		if rpc.IsConnError(err) {
@@ -211,6 +225,7 @@ func (this *IPListManager) DeleteExpiredItems() {
 	}
 }
 
+// 处理IP条目
 func (this *IPListManager) processItems(items []*pb.IPItem, fromRemote bool) {
 	var changedLists = map[*IPList]zero.Zero{}
 	for _, item := range items {
@@ -280,8 +295,8 @@ func (this *IPListManager) processItems(items []*pb.IPItem, fromRemote bool) {
 
 	if fromRemote {
 		var latestVersion = items[len(items)-1].Version
-		if latestVersion > this.version {
-			this.version = latestVersion
+		if latestVersion > this.lastVersion {
+			this.lastVersion = latestVersion
 		}
 	}
 }