修改客户端分配的ip为CIDR格式，请注意原来network格式

admin/api_base.go

@@ -16,7 +16,7 @@ func Login(w http.ResponseWriter, r *http.Request) {
 	// hd, _ := httputil.DumpRequest(r, true)
 	// fmt.Println("DumpRequest: ", string(hd))
 
-	r.ParseForm()
+	_ = r.ParseForm()
 	admin_user := r.PostFormValue("admin_user")
 	admin_pass := r.PostFormValue("admin_pass")
 

admin/api_group.go

@@ -10,7 +10,7 @@ import (
 )
 
 func GroupList(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	pageS := r.FormValue("page")
 	page, _ := strconv.Atoi(pageS)
 	if page < 1 {
@@ -48,7 +48,7 @@ func GroupNames(w http.ResponseWriter, r *http.Request) {
 }
 
 func GroupDetail(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
 	if id < 1 {
@@ -90,7 +90,7 @@ func GroupSet(w http.ResponseWriter, r *http.Request) {
 }
 
 func GroupDel(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
 	if id < 1 {

admin/api_ip_map.go

@@ -11,7 +11,7 @@ import (
 )
 
 func UserIpMapList(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	pageS := r.FormValue("page")
 	page, _ := strconv.Atoi(pageS)
 	if page < 1 {
@@ -39,7 +39,7 @@ func UserIpMapList(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserIpMapDetail(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
 	if id < 1 {
@@ -58,7 +58,7 @@ func UserIpMapDetail(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserIpMapSet(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 
 	body, err := ioutil.ReadAll(r.Body)
 	if err != nil {
@@ -92,7 +92,7 @@ func UserIpMapSet(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserIpMapDel(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
 

admin/api_set.go

@@ -1,7 +1,6 @@
 package admin
 
 import (
-	"encoding/json"
 	"fmt"
 	"net/http"
 	"runtime"
@@ -84,9 +83,8 @@ func SetSystem(w http.ResponseWriter, r *http.Request) {
 }
 
 func SetSoft(w http.ResponseWriter, r *http.Request) {
-	datas := base.ServerCfg2Slice()
-	b, _ := json.Marshal(datas)
-	w.Write(b)
+	data := base.ServerCfg2Slice()
+	RespSucess(w, data)
 }
 
 func decimal(f float64) float64 {

admin/api_user.go

@@ -19,7 +19,7 @@ import (
 )
 
 func UserList(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	prefix := r.FormValue("prefix")
 	pageS := r.FormValue("page")
 	page, _ := strconv.Atoi(pageS)
@@ -58,7 +58,7 @@ func UserList(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserDetail(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
 	if id < 1 {
@@ -77,7 +77,7 @@ func UserDetail(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserSet(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 
 	body, err := ioutil.ReadAll(r.Body)
 	if err != nil {
@@ -111,7 +111,7 @@ func UserSet(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserDel(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
 
@@ -130,7 +130,7 @@ func UserDel(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserOtpQr(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	b64 := r.FormValue("b64")
 	idS := r.FormValue("id")
 	id, _ := strconv.Atoi(idS)
@@ -148,11 +148,16 @@ func UserOtpQr(w http.ResponseWriter, r *http.Request) {
 	if b64 == "1" {
 		data, _ := qr.PNG(300)
 		s := base64.StdEncoding.EncodeToString(data)
-		fmt.Fprint(w, s)
-	} else {
-		qr.Write(300, w)
+		_, err = fmt.Fprint(w, s)
+		if err != nil {
+			base.Error(err)
+		}
+		return
+	}
+	err = qr.Write(300, w)
+	if err != nil {
+		base.Error(err)
 	}
-
 }
 
 // 在线用户
@@ -169,14 +174,14 @@ func UserOnline(w http.ResponseWriter, r *http.Request) {
 }
 
 func UserOffline(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	token := r.FormValue("token")
 	sessdata.CloseSess(token)
 	RespSucess(w, nil)
 }
 
 func UserReline(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	token := r.FormValue("token")
 	sessdata.CloseCSess(token)
 	RespSucess(w, nil)
@@ -231,7 +236,10 @@ func userAccountMail(user *dbdata.User) error {
 	}
 	w := bytes.NewBufferString("")
 	t, _ := template.New("auth_complete").Parse(htmlBody)
-	t.Execute(w, data)
+	err = t.Execute(w, data)
+	if err != nil {
+		return err
+	}
 	// fmt.Println(w.String())
 	return SendMail(base.Cfg.Issuer+"平台通知", user.Email, w.String())
 }

admin/common.go

@@ -8,8 +8,8 @@ import (
 	"github.com/bjdgyc/anylink/base"
 	"github.com/bjdgyc/anylink/dbdata"
 	"github.com/dgrijalva/jwt-go"
-	"github.com/mojocn/base64Captcha"
 	mail "github.com/xhit/go-simple-mail/v2"
+	// "github.com/mojocn/base64Captcha"
 )
 
 func SetJwtData(data map[string]interface{}, expiresAt int64) (string, error) {
@@ -43,15 +43,6 @@ func GetJwtData(jwtToken string) (map[string]interface{}, error) {
 	return claims, nil
 }
 
-func createCaptcha() {
-	var store = base64Captcha.DefaultMemStore
-	var driver base64Captcha.Driver
-	driverString := &base64Captcha.DriverString{}
-	driver = driverString.ConvertFonts()
-	c := base64Captcha.NewCaptcha(driver, store)
-	_ = c
-}
-
 func SendMail(subject, to, htmlBody string) error {
 
 	dataSmtp := &dbdata.SettingSmtp{}

admin/resp.go

@@ -43,8 +43,10 @@ func respHttp(w http.ResponseWriter, respCode int, data interface{}, errS ...int
 
 	w.Header().Set("Content-Type", "application/json; charset=utf-8")
 	w.WriteHeader(http.StatusOK)
-	w.Write(b)
-
+	_, err = w.Write(b)
+	if err != nil {
+		base.Error(err)
+	}
 	// 记录返回数据
 	// logger.Category("response").Debug(string(b))
 }

admin/resp_test.go

@@ -0,0 +1,39 @@
+package admin
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRespSucess(t *testing.T) {
+	assert := assert.New(t)
+	w := httptest.NewRecorder()
+	RespSucess(w, "data")
+	// fmt.Println(w)
+	assert.Equal(w.Code, 200)
+	body, _ := ioutil.ReadAll(w.Body)
+	res := Resp{}
+	err := json.Unmarshal(body, &res)
+	assert.Nil(err)
+	assert.Equal(res.Code, 0)
+	assert.Equal(res.Data, "data")
+
+}
+
+func TestRespError(t *testing.T) {
+	assert := assert.New(t)
+	w := httptest.NewRecorder()
+	RespError(w, 10, "err-msg")
+	// fmt.Println(w)
+	assert.Equal(w.Code, 200)
+	body, _ := ioutil.ReadAll(w.Body)
+	res := Resp{}
+	err := json.Unmarshal(body, &res)
+	assert.Nil(err)
+	assert.Equal(res.Code, 10)
+	assert.Equal(res.Msg, "err-msg")
+}

base/app_ver.go

@@ -2,5 +2,5 @@ package base
 
 const (
 	APP_NAME = "AnyLink"
-	APP_VER  = "0.1.1"
+	APP_VER  = "0.1.2"
 )

base/cfg_server.go

@@ -47,9 +47,8 @@ type ServerConfig struct {
 	AdminPass     string `toml:"admin_pass" info:"管理用户密码"`
 	JwtSecret     string `toml:"jwt_secret" info:"JWT密钥"`
 
-	LinkMode    string   `toml:"link_mode" info:"虚拟网络类型"`          // tun tap
-	Ipv4Network string   `toml:"ipv4_network" info:"ipv4_network"` // 192.168.1.0
-	Ipv4Netmask string   `toml:"ipv4_netmask" info:"ipv4_netmask"` // 255.255.255.0
+	LinkMode    string   `toml:"link_mode" info:"虚拟网络类型"` // tun tap
+	Ipv4CIDR    string   `toml:"ipv4_cidr" info:"ip地址网段"` // 192.168.1.0/24
 	Ipv4Gateway string   `toml:"ipv4_gateway" info:"ipv4_gateway"`
 	Ipv4Pool    []string `toml:"ipv4_pool" info:"IPV4起止地址池"` // Pool[0]=192.168.1.100 Pool[1]=192.168.1.200
 	IpLease     int      `toml:"ip_lease"  info:"IP租期(秒)"`
@@ -102,16 +101,17 @@ func getAbsPath(base, cfile string) string {
 	return filepath.Join(base, cfile)
 }
 
-func ServerCfg2Slice() interface{} {
+type SCfg struct {
+	Name string      `json:"name"`
+	Info string      `json:"info"`
+	Data interface{} `json:"data"`
+}
+
+func ServerCfg2Slice() []SCfg {
 	ref := reflect.ValueOf(Cfg)
 	s := ref.Elem()
 
-	type cfg struct {
-		Name string      `json:"name"`
-		Info string      `json:"info"`
-		Data interface{} `json:"data"`
-	}
-	var datas []cfg
+	var datas []SCfg
 
 	typ := s.Type()
 	numFields := s.NumField()
@@ -122,7 +122,7 @@ func ServerCfg2Slice() interface{} {
 		tags := strings.Split(tag, ",")
 		info := field.Tag.Get("info")
 
-		datas = append(datas, cfg{Name: tags[0], Info: info, Data: value.Interface()})
+		datas = append(datas, SCfg{Name: tags[0], Info: info, Data: value.Interface()})
 	}
 
 	return datas

base/log.go

@@ -36,7 +36,7 @@ func logLevel2Int(l string) int {
 	}
 	lvl := _Info
 	for k, v := range levels {
-		if strings.ToLower(l) == strings.ToLower(v) {
+		if strings.EqualFold(strings.ToLower(l), strings.ToLower(v)) {
 			lvl = k
 		}
 	}
@@ -45,7 +45,7 @@ func logLevel2Int(l string) int {
 
 func output(l int, s ...interface{}) {
 	lvl := fmt.Sprintf("[%s] ", levels[l])
-	baseLog.Output(3, lvl+fmt.Sprintln(s...))
+	_ = baseLog.Output(3, lvl+fmt.Sprintln(s...))
 }
 
 func Debug(v ...interface{}) {

bridge-init.sh

@@ -8,10 +8,6 @@
 # Define Bridge Interface
 br="anylink0"
 
-# Define list of TAP interfaces to be bridged,
-# for example tap="tap0 tap1 tap2".
-tap="tap0"
-
 # Define physical ethernet interface to be bridged
 # with TAP interface(s) above.
 

conf/server.toml

@@ -35,8 +35,7 @@ proxy_protocol = false
 link_mode = "tun"
 
 #客户端分配的ip地址池
-ipv4_network = "192.168.10.0"
-ipv4_netmask = "255.255.255.0"
+ipv4_cidr = "192.168.10.0/24"
 ipv4_gateway = "192.168.10.1"
 ipv4_pool = ["192.168.10.100", "192.168.10.200"]
 

dbdata/db.go

@@ -43,28 +43,27 @@ func initData() {
 		return
 	}
 
-	defer Set(SettingBucket, Installed, true)
+	defer func() {
+		_ = Set(SettingBucket, Installed, true)
+	}()
 
 	smtp := &SettingSmtp{
 		Host: "127.0.0.1",
 		Port: 25,
 		From: "vpn@xx.com",
 	}
-	SettingSet(smtp)
+	_ = SettingSet(smtp)
 
 	other := &SettingOther{
 		Banner:      "您已接入公司网络，请按照公司规定使用。\n请勿进行非工作下载及视频行为！",
 		AccountMail: accountMail,
 	}
-	SettingSet(other)
+	_ = SettingSet(other)
 
 }
 
 func CheckErrNotFound(err error) bool {
-	if err == storm.ErrNotFound {
-		return true
-	}
-	return false
+	return err == storm.ErrNotFound
 }
 
 const accountMail = `<p>您好:</p>

dbdata/db_test.go

@@ -27,7 +27,7 @@ func TestDb(t *testing.T) {
 	defer closeIpdata()
 
 	u := User{Username: "a"}
-	Save(&u)
+	_ = Save(&u)
 
 	assert.Equal(u.Id, 1)
 }

handler/dtls.go

@@ -2,4 +2,5 @@ package handler
 
 // 暂时没有实现
 func startDtls() {
+
 }

handler/link_auth.go

@@ -87,7 +87,7 @@ func LinkAuth(w http.ResponseWriter, r *http.Request) {
 	sess.MacAddr = strings.ToLower(cr.MacAddressList.MacAddress)
 	sess.UniqueIdGlobal = cr.DeviceId.UniqueIdGlobal
 	other := &dbdata.SettingOther{}
-	dbdata.SettingGet(other)
+	_ = dbdata.SettingGet(other)
 	rd := RequestData{SessionId: sess.Sid, SessionToken: sess.Sid + "@" + sess.Token,
 		Banner: other.Banner}
 	w.WriteHeader(http.StatusOK)
@@ -102,7 +102,7 @@ const (
 func tplRequest(typ int, w io.Writer, data RequestData) {
 	if typ == tpl_request {
 		t, _ := template.New("auth_request").Parse(auth_request)
-		t.Execute(w, data)
+		_ = t.Execute(w, data)
 		return
 	}
 
@@ -111,7 +111,7 @@ func tplRequest(typ int, w io.Writer, data RequestData) {
 		data.Banner = strings.ReplaceAll(data.Banner, "\n", "
")
 	}
 	t, _ := template.New("auth_complete").Parse(auth_complete)
-	t.Execute(w, data)
+	_ = t.Execute(w, data)
 }
 
 // 设置输出信息

handler/link_base.go

@@ -2,11 +2,9 @@ package handler
 
 import (
 	"encoding/xml"
-	"fmt"
 	"log"
 	"net/http"
 	"os/exec"
-	"strings"
 )
 
 const BufferSize = 2048
@@ -43,27 +41,6 @@ type macAddressList struct {
 	MacAddress string `xml:"mac-address"`
 }
 
-// 判断anyconnect客户端
-func checkLinkClient(h http.HandlerFunc) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		// TODO 调试信息输出
-		// hd, _ := httputil.DumpRequest(r, true)
-		// fmt.Println("DumpRequest: ", string(hd))
-		// fmt.Println(r.RemoteAddr)
-
-		userAgent := strings.ToLower(r.UserAgent())
-		x_Aggregate_Auth := r.Header.Get("X-Aggregate-Auth")
-		x_Transcend_Version := r.Header.Get("X-Transcend-Version")
-		if strings.Contains(userAgent, "anyconnect") &&
-			x_Aggregate_Auth == "1" && x_Transcend_Version == "1" {
-			h(w, r)
-		} else {
-			w.WriteHeader(http.StatusForbidden)
-			fmt.Fprintf(w, "error request")
-		}
-	}
-}
-
 func setCommonHeader(w http.ResponseWriter) {
 	// Content-Length Date 默认已经存在
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")

handler/link_home.go

@@ -26,7 +26,7 @@ func LinkHome(w http.ResponseWriter, r *http.Request) {
 }
 
 func LinkOtpQr(w http.ResponseWriter, r *http.Request) {
-	r.ParseForm()
+	_ = r.ParseForm()
 	idS := r.FormValue("id")
 	jwtToken := r.FormValue("jwt")
 	data, err := admin.GetJwtData(jwtToken)

handler/link_tap.go

@@ -29,6 +29,9 @@ func checkTap() {
 	bridgeHw = brFace.HardwareAddr
 
 	addrs, err := brFace.Addrs()
+	if err != nil {
+		base.Fatal("testTap err: ", err)
+	}
 	for _, addr := range addrs {
 		ip, _, err := net.ParseCIDR(addr.String())
 		if err != nil || ip.To4() == nil {

handler/link_tunnel.go

@@ -73,9 +73,9 @@ func LinkTunnel(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Server", fmt.Sprintf("%s %s", base.APP_NAME, base.APP_VER))
 	w.Header().Set("X-CSTP-Version", "1")
 	w.Header().Set("X-CSTP-Protocol", "Copyright (c) 2004 Cisco Systems, Inc.")
-	w.Header().Set("X-CSTP-Address", cSess.IpAddr.String()) // 分配的ip地址
-	w.Header().Set("X-CSTP-Netmask", base.Cfg.Ipv4Netmask)  // 子网掩码
-	w.Header().Set("X-CSTP-Hostname", hn)                   // 机器名称
+	w.Header().Set("X-CSTP-Address", cSess.IpAddr.String())             // 分配的ip地址
+	w.Header().Set("X-CSTP-Netmask", sessdata.IpPool.Ipv4Mask.String()) // 子网掩码
+	w.Header().Set("X-CSTP-Hostname", hn)                               // 机器名称
 
 	// 允许本地LAN访问vpn网络，必须放在路由的第一个
 	if cSess.Group.AllowLan {
@@ -131,11 +131,11 @@ func LinkTunnel(w http.ResponseWriter, r *http.Request) {
 	// w.Header().Set("X-CSTP-Post-Auth-XML", ``)
 	w.WriteHeader(http.StatusOK)
 
-	h := w.Header().Clone()
+	hClone := w.Header().Clone()
 	headers := make([]byte, 0)
 	buf := bytes.NewBuffer(headers)
-	h.Write(buf)
-	base.Debug(string(buf.Bytes()))
+	_ = hClone.Write(buf)
+	base.Debug(buf.String())
 
 	hj := w.(http.Hijacker)
 	conn, _, err := hj.Hijack()

handler/start.go

@@ -21,5 +21,5 @@ func Start() {
 }
 
 func Stop() {
-	dbdata.Stop()
+	_ = dbdata.Stop()
 }

pkg/arpdis/addr.go

@@ -48,7 +48,7 @@ func tableLookup(ip net.IP) *Addr {
 	}
 
 	// 判断老化过期时间
-	tsub := time.Now().Sub(addr.disTime)
+	tsub := time.Since(addr.disTime)
 	switch addr.Type {
 	case TypeNormal:
 		if tsub > StaleTimeNormal {

pkg/arpdis/icmp.go

@@ -48,7 +48,7 @@ func doPing(ip string) error {
 		return err
 	}
 
-	conn.SetReadDeadline(time.Now().Add(time.Second * 2))
+	_ = conn.SetReadDeadline(time.Now().Add(time.Second * 2))
 
 	for {
 		buf := make([]byte, 512)

pkg/proxyproto/protocol.go

@@ -198,8 +198,10 @@ func (p *Conn) checkPrefixOnce() {
 func (p *Conn) checkPrefix() error {
 	if p.proxyHeaderTimeout != 0 {
 		readDeadLine := time.Now().Add(p.proxyHeaderTimeout)
-		p.conn.SetReadDeadline(readDeadLine)
-		defer p.conn.SetReadDeadline(time.Time{})
+		_ = p.conn.SetReadDeadline(readDeadLine)
+		defer func() {
+			_ = p.conn.SetReadDeadline(time.Time{})
+		}()
 	}
 
 	// Incrementally check each byte of the prefix

sessdata/copy_struct.go

@@ -45,8 +45,6 @@ func CopyStruct(a interface{}, b interface{}, fields ...string) (err error) {
 		// a中有同名的字段并且类型一致才复制
 		if f.IsValid() && f.Kind() == bValue.Kind() {
 			f.Set(bValue)
-		} else {
-			// fmt.Printf("no such field or different kind, fieldName: %s\n", name)
 		}
 	}
 	return

sessdata/ip_pool.go

@@ -19,7 +19,8 @@ type ipPoolConfig struct {
 	mux sync.Mutex
 	// 计算动态ip
 	Ipv4Gateway net.IP
-	Ipv4IPNet   net.IPNet
+	Ipv4Mask    net.IP
+	Ipv4IPNet   *net.IPNet
 	IpLongMin   uint32
 	IpLongMax   uint32
 }
@@ -27,11 +28,12 @@ type ipPoolConfig struct {
 func initIpPool() {
 
 	// 地址处理
-	// ip地址
-	ip := net.ParseIP(base.Cfg.Ipv4Network)
-	// 子网掩码
-	maskIp := net.ParseIP(base.Cfg.Ipv4Netmask).To4()
-	IpPool.Ipv4IPNet = net.IPNet{IP: ip, Mask: net.IPMask(maskIp)}
+	_, ipNet, err := net.ParseCIDR(base.Cfg.Ipv4CIDR)
+	if err != nil {
+		panic(err)
+	}
+	IpPool.Ipv4IPNet = ipNet
+	IpPool.Ipv4Mask = net.IP(ipNet.Mask)
 	IpPool.Ipv4Gateway = net.ParseIP(base.Cfg.Ipv4Gateway)
 
 	// 网络地址零值
@@ -74,11 +76,11 @@ func AcquireIp(username, macAddr string) net.IP {
 			mi.Username = username
 			mi.LastLogin = tNow
 			// 回写db数据
-			dbdata.Save(mi)
+			_ = dbdata.Save(mi)
 			ipActive[ipStr] = true
 			return ip
 		} else {
-			dbdata.Del(mi)
+			_ = dbdata.Del(mi)
 		}
 	}
 
@@ -92,7 +94,7 @@ func AcquireIp(username, macAddr string) net.IP {
 		if err != nil && dbdata.CheckErrNotFound(err) {
 			// 该ip没有被使用
 			mi := &dbdata.IpMap{IpAddr: ip, MacAddr: macAddr, Username: username, LastLogin: tNow}
-			dbdata.Save(mi)
+			_ = dbdata.Save(mi)
 			ipActive[ipStr] = true
 			return ip
 		}
@@ -121,10 +123,10 @@ func AcquireIp(username, macAddr string) net.IP {
 
 		// 已经超过租期
 		if tNow.Sub(v.LastLogin) > time.Duration(base.Cfg.IpLease)*time.Second {
-			dbdata.Del(v)
+			_ = dbdata.Del(v)
 			mi := &dbdata.IpMap{IpAddr: ip, MacAddr: macAddr, Username: username, LastLogin: tNow}
 			// 重写db数据
-			dbdata.Save(mi)
+			_ = dbdata.Save(mi)
 			ipActive[ipStr] = true
 			return ip
 		}
@@ -145,7 +147,7 @@ func AcquireIp(username, macAddr string) net.IP {
 	ipStr := ip.String()
 	mi = &dbdata.IpMap{IpAddr: ip, MacAddr: macAddr, Username: username, LastLogin: tNow}
 	// 回写db数据
-	dbdata.Save(mi)
+	_ = dbdata.Save(mi)
 	ipActive[ipStr] = true
 	return ip
 }
@@ -160,6 +162,6 @@ func ReleaseIp(ip net.IP, macAddr string) {
 	err := dbdata.One("IpAddr", ip, mi)
 	if err == nil {
 		mi.LastLogin = time.Now()
-		dbdata.Save(mi)
+		_ = dbdata.Save(mi)
 	}
 }

sessdata/ip_pool_test.go

@@ -15,8 +15,7 @@ import (
 func preData(tmpDir string) {
 	tmpDb := path.Join(tmpDir, "test.db")
 	base.Cfg.DbFile = tmpDb
-	base.Cfg.Ipv4Network = "192.168.3.0"
-	base.Cfg.Ipv4Netmask = "255.255.255.0"
+	base.Cfg.Ipv4CIDR = "192.168.3.0/24"
 	base.Cfg.Ipv4Pool = []string{"192.168.3.1", "192.168.3.199"}
 	base.Cfg.MaxClient = 100
 	base.Cfg.MaxUserClient = 3
@@ -26,12 +25,12 @@ func preData(tmpDir string) {
 		Name:      "group1",
 		Bandwidth: 1000,
 	}
-	dbdata.Save(&group)
+	_ = dbdata.Save(&group)
 	initIpPool()
 }
 
 func cleardata(tmpDir string) {
-	dbdata.Stop()
+	_ = dbdata.Stop()
 	tmpDb := path.Join(tmpDir, "test.db")
 	os.Remove(tmpDb)
 }
@@ -45,15 +44,15 @@ func TestIpPool(t *testing.T) {
 	var ip net.IP
 
 	for i := 1; i <= 100; i++ {
-		ip = AcquireIp("user", fmt.Sprintf("mac-%d", i))
+		_ = AcquireIp("user", fmt.Sprintf("mac-%d", i))
 	}
-	ip = AcquireIp("user", fmt.Sprintf("mac-new"))
+	ip = AcquireIp("user", "mac-new")
 	assert.True(net.IPv4(192, 168, 3, 101).Equal(ip))
 	for i := 102; i <= 199; i++ {
 		ip = AcquireIp("user", fmt.Sprintf("mac-%d", i))
 	}
 	assert.True(net.IPv4(192, 168, 3, 199).Equal(ip))
-	ip = AcquireIp("user", fmt.Sprintf("mac-nil"))
+	ip = AcquireIp("user", "mac-nil")
 	assert.Nil(ip)
 
 	ReleaseIp(net.IPv4(192, 168, 3, 88), "mac-88")

sessdata/limit_test.go

@@ -43,10 +43,11 @@ func TestLimitClient(t *testing.T) {
 func TestLimitWait(t *testing.T) {
 	assert := assert.New(t)
 	limit := NewLimitRater(1, 2)
-	limit.Wait(2)
-	start := time.Now()
 	err := limit.Wait(2)
 	assert.Nil(err)
+	start := time.Now()
+	err = limit.Wait(2)
+	assert.Nil(err)
 	err = limit.Wait(1)
 	assert.Nil(err)
 	end := time.Now()

sessdata/online.go

@@ -34,10 +34,7 @@ func (o Onlines) Len() int {
 }
 
 func (o Onlines) Less(i, j int) bool {
-	if bytes.Compare(o[i].Ip, o[j].Ip) < 0 {
-		return true
-	}
-	return false
+	return bytes.Compare(o[i].Ip, o[j].Ip) < 0
 }
 
 func (o Onlines) Swap(i, j int) {

sessdata/session.go

@@ -78,13 +78,13 @@ func checkSession() {
 			return
 		}
 		timeout := time.Duration(base.Cfg.SessionTimeout) * time.Second
-		tick := time.Tick(time.Second * 60)
-		for range tick {
+		tick := time.NewTicker(time.Second * 60)
+		for range tick.C {
 			sessMux.Lock()
 			t := time.Now()
 			for k, v := range sessions {
 				v.mux.Lock()
-				if v.IsActive != true {
+				if !v.IsActive {
 					if t.Sub(v.LastLogin) > timeout {
 						delete(sessions, k)
 					}
@@ -133,12 +133,12 @@ func (s *Session) NewConn() *ConnSession {
 	macAddr := s.MacAddr
 	username := s.Username
 	s.mux.Unlock()
-	if active == true {
+	if active {
 		s.CSess.Close()
 	}
 
 	limit := LimitClient(username, false)
-	if limit == false {
+	if !limit {
 		return nil
 	}
 	// 获取客户端mac地址
@@ -208,8 +208,10 @@ func (cs *ConnSession) Close() {
 const BandwidthPeriodSec = 2 // 流量速率统计周期(秒)
 
 func (cs *ConnSession) ratePeriod() {
-	tick := time.Tick(time.Second * BandwidthPeriodSec)
-	for range tick {
+	tick := time.NewTicker(time.Second * BandwidthPeriodSec)
+	defer tick.Stop()
+
+	for range tick.C {
 		select {
 		case <-cs.CloseChan:
 			return

sessdata/session_test.go

@@ -28,9 +28,11 @@ func TestConnSession(t *testing.T) {
 
 	cSess := sess.NewConn()
 
-	cSess.RateLimit(100, true)
+	err := cSess.RateLimit(100, true)
+	assert.Nil(err)
 	assert.Equal(cSess.BandwidthUp, uint32(100))
-	cSess.RateLimit(200, false)
+	err = cSess.RateLimit(200, false)
+	assert.Nil(err)
 	assert.Equal(cSess.BandwidthDown, uint32(200))
 	cSess.Close()
 }