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大范围修订代码,以试图防止内存逃逸到堆;

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This commit is contained in:
hahahrfool
2022-03-31 13:33:58 +08:00
parent 2f53ffe591
commit b31557df14
30 changed files with 322 additions and 282 deletions
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21
commands.go
View File

@@ -12,10 +12,6 @@ import (
"github.com/hahahrfool/v2ray_simple/utils" "github.com/hahahrfool/v2ray_simple/utils"
) )
const (
mmdbDownloadLink = "https://cdn.jsdelivr.net/gh/Loyalsoldier/geoip@release/Country.mmdb"
)
var ( var (
cmdPrintSupportedProtocols bool cmdPrintSupportedProtocols bool
cmdGenerateUUID bool cmdGenerateUUID bool
@@ -39,7 +35,7 @@ func generateAndPrintUUID() {
return return
} }
log.Println("Your new randomly generated uuid is : ", utils.GenerateUUIDStr()) log.Printf("Your new randomly generated uuid is : %s\n", utils.GenerateUUIDStr())
} }
func mayPrintSupportedProtocols() { func mayPrintSupportedProtocols() {
@@ -55,33 +51,36 @@ func tryDownloadMMDB() {
if utils.FileExist(utils.GetFilePath(netLayer.GeoipFileName)) { if utils.FileExist(utils.GetFilePath(netLayer.GeoipFileName)) {
return return
} }
log.Println("No GeoLite2-Country.mmdb found,start downloading from " + mmdbDownloadLink)
const mmdbDownloadLink = "https://cdn.jsdelivr.net/gh/Loyalsoldier/geoip@release/Country.mmdb"
log.Printf("No GeoLite2-Country.mmdb found,start downloading from%s\n", mmdbDownloadLink)
resp, err := http.Get(mmdbDownloadLink) resp, err := http.Get(mmdbDownloadLink)
if err != nil { if err != nil {
log.Println("Download mmdb failed", err) log.Printf("Download mmdb failed%s\n", err)
return return
} }
defer resp.Body.Close() defer resp.Body.Close()
out, err := os.Create(netLayer.GeoipFileName) out, err := os.Create(netLayer.GeoipFileName)
if err != nil { if err != nil {
log.Println("Download mmdb but Can't CreateFile,", err) log.Printf("Download mmdb but Can't CreateFile,%s\n", err)
return return
} }
defer out.Close() defer out.Close()
if resp.StatusCode != http.StatusOK { if resp.StatusCode != http.StatusOK {
log.Println("Download mmdb bad status:", resp.Status) log.Printf("Download mmdb bad status:%s\n", resp.Status)
return return
} }
_, err = io.Copy(out, resp.Body) _, err = io.Copy(out, resp.Body)
if err != nil { if err != nil {
log.Println("Write downloaded mmdb to file err:", err) log.Printf("Write downloaded mmdb to file err:%s\n", err)
return return
} }
log.Println("Download mmdb success!") log.Printf("Download mmdb success!\n")
} }

19
configs.go
View File

@@ -33,7 +33,7 @@ func loadConfig() {
standardConf, err = proxy.LoadTomlConfFile(fpath) standardConf, err = proxy.LoadTomlConfFile(fpath)
if err != nil { if err != nil {
log.Fatalln("can not load standard config file: ", err) log.Fatalf("can not load standard config file: %s\n", err)
} }
//log.Println("standardConf.Fallbacks: ", len(standardConf.Fallbacks)) //log.Println("standardConf.Fallbacks: ", len(standardConf.Fallbacks))
if len(standardConf.Fallbacks) != 0 { if len(standardConf.Fallbacks) != 0 {
@@ -53,10 +53,11 @@ func loadConfig() {
//默认认为所有其他后缀的都是json格式，因为有时我会用 server.json.vless 这种写法 //默认认为所有其他后缀的都是json格式，因为有时我会用 server.json.vless 这种写法
// 默认所有json格式的文件都为 极简模式 // 默认所有json格式的文件都为 极简模式
simpleConf, err = proxy.LoadSimpleConfigFile(fpath) var hasE bool
if err != nil { simpleConf, hasE, err = proxy.LoadSimpleConfigFile(fpath)
if hasE {
log.Fatalln("can not load simple config file: ", err) log.Fatalf("can not load simple config file: %s\n", err)
} }
if simpleConf.Fallbacks != nil { if simpleConf.Fallbacks != nil {
mainFallback = httpLayer.NewClassicFallbackFromConfList(simpleConf.Fallbacks) mainFallback = httpLayer.NewClassicFallbackFromConfList(simpleConf.Fallbacks)
@@ -70,15 +71,15 @@ func loadConfig() {
} }
} else { } else {
log.Println("No Such Config File:", configFileName, ",will try using -L parameter ") log.Printf("No Such Config File:%s,will try using -L parameter \n", configFileName)
if listenURL != "" { if listenURL != "" {
_, err = url.Parse(listenURL) _, err = url.Parse(listenURL)
if err != nil { if err != nil {
log.Fatalln("listenURL given but invalid ", listenURL, err) log.Fatalf("listenURL given but invalid %s %s\n", listenURL, err)
} }
simpleConf = &proxy.Simple{ simpleConf = proxy.Simple{
Server_ThatListenPort_Url: listenURL, Server_ThatListenPort_Url: listenURL,
} }
@@ -86,7 +87,7 @@ func loadConfig() {
_, err = url.Parse(dialURL) _, err = url.Parse(dialURL)
if err != nil { if err != nil {
log.Fatalln("dialURL given but invalid ", dialURL, err) log.Fatalf("dialURL given but invalid %s %s\n", dialURL, err)
} }
@@ -94,7 +95,7 @@ func loadConfig() {
} }
} else { } else {
log.Fatalln("no -L listen URL provided ") log.Fatalf("no -L listen URL provided \n")
} }
} }

4
grpc/conn.go
View File

@@ -32,7 +32,7 @@ func (c *Conn) Read(b []byte) (n int, err error) {
if c.cacheReader == nil { if c.cacheReader == nil {
h, err := c.stream.Recv() h, err := c.stream.Recv()
if err != nil { if err != nil {
return 0, utils.NewErr("unable to read from gun tunnel", err) return 0, utils.ErrInErr{ErrDesc: "unable to read from gun tunnel", ErrDetail: err}
} }
c.cacheReader = bytes.NewReader(h.Data) c.cacheReader = bytes.NewReader(h.Data)
} }
@@ -47,7 +47,7 @@ func (c *Conn) Read(b []byte) (n int, err error) {
func (c *Conn) Write(b []byte) (n int, err error) { func (c *Conn) Write(b []byte) (n int, err error) {
err = c.stream.Send(&Hunk{Data: b}) err = c.stream.Send(&Hunk{Data: b})
if err != nil { if err != nil {
return 0, utils.NewErr("Unable to send data over stream service", err) return 0, utils.ErrInErr{ErrDesc: "Unable to send data over stream service", ErrDetail: err}
} }
return len(b), nil return len(b), nil
} }

4
httpLayer/fallback.go
View File

@@ -333,14 +333,14 @@ func NewClassicFallbackFromConfList(fcl []*FallbackConf) *ClassicFallback {
return cfb return cfb
} }
func (cfb *ClassicFallback) InsertFallbackConditionSet(condition FallbackConditionSet, addr *netLayer.Addr) { func (cfb *ClassicFallback) InsertFallbackConditionSet(condition FallbackConditionSet, addr netLayer.Addr) {
theMap := cfb.Map theMap := cfb.Map
ftype := condition.GetType() ftype := condition.GetType()
cfb.supportedTypeMask |= ftype cfb.supportedTypeMask |= ftype
theMap[condition] = addr theMap[condition] = &addr
} }
func (cfb *ClassicFallback) FirstBuffer() *bytes.Buffer { func (cfb *ClassicFallback) FirstBuffer() *bytes.Buffer {

124
main.go
View File

@@ -42,9 +42,9 @@ var (
uniqueTestDomain string //有时需要测试到单一网站的流量，此时为了避免其它干扰，需要在这里声明 一下 该域名，然后程序里会进行过滤 uniqueTestDomain string //有时需要测试到单一网站的流量，此时为了避免其它干扰，需要在这里声明 一下 该域名，然后程序里会进行过滤
confMode int = -1 //0: simple json, 1: standard toml, 2: v2ray compatible json confMode int = -1 //0: simple json, 1: standard toml, 2: v2ray compatible json
simpleConf *proxy.Simple simpleConf proxy.Simple
standardConf *proxy.Standard standardConf proxy.Standard
directClient, _ = proxy.ClientFromURL("direct://") directClient, _, _ = proxy.ClientFromURL("direct://")
default_uuid string default_uuid string
allServers = make([]proxy.Server, 0, 8) allServers = make([]proxy.Server, 0, 8)
@@ -138,11 +138,9 @@ func main() {
netLayer.UseReadv = usereadv_beforeLoadConfigFile netLayer.UseReadv = usereadv_beforeLoadConfigFile
} }
fmt.Println("Log Level:", utils.LogLevel) //Printf不会发生 escapes to heap 现象，所以我们统一用 Printf
fmt.Println("UseReadv:", netLayer.UseReadv) fmt.Printf("Log Level:%d\n", utils.LogLevel)
if utils.CanLogDebug() { fmt.Printf("UseReadv:%t\n", netLayer.UseReadv)
fmt.Println("MaxBufSize", utils.MaxBufLen)
}
runPreCommands() runPreCommands()
@@ -153,9 +151,10 @@ func main() {
//load server and routePolicy //load server and routePolicy
switch confMode { switch confMode {
case simpleMode: case simpleMode:
defaultInServer, err = proxy.ServerFromURL(simpleConf.Server_ThatListenPort_Url) var hase bool
if err != nil { defaultInServer, hase, err = proxy.ServerFromURL(simpleConf.Server_ThatListenPort_Url)
log.Fatalln("can not create local server: ", err) if hase {
log.Fatalf("can not create local server: %s\n", err)
} }
if !defaultInServer.CantRoute() && simpleConf.Route != nil { if !defaultInServer.CantRoute() && simpleConf.Route != nil {
@@ -217,8 +216,9 @@ func main() {
// load client // load client
switch confMode { switch confMode {
case simpleMode: case simpleMode:
defaultOutClient, err = proxy.ClientFromURL(simpleConf.Client_ThatDialRemote_Url) var hase bool
if err != nil { defaultOutClient, hase, err = proxy.ClientFromURL(simpleConf.Client_ThatDialRemote_Url)
if hase {
log.Fatalln("can not create remote client: ", err) log.Fatalln("can not create remote client: ", err)
} }
case standardMode: case standardMode:
@@ -274,14 +274,14 @@ func listenSer(inServer proxy.Server, defaultOutClientForThis proxy.Client) {
handleFunc := inServer.HandleInitialLayersFunc() handleFunc := inServer.HandleInitialLayersFunc()
if handleFunc == nil { if handleFunc == nil {
log.Fatal("inServer.IsHandleInitialLayers but inServer.HandleInitialLayersFunc() returns nil") log.Fatalf("inServer.IsHandleInitialLayers but inServer.HandleInitialLayersFunc() returns nil\n")
} }
newConnChan, baseConn := handleFunc() newConnChan, baseConn := handleFunc()
if newConnChan == nil { if newConnChan == nil {
//baseConn可以为nil，quic就是如此 //baseConn可以为nil，quic就是如此
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("StarthandleInitialLayers can't extablish baseConn") log.Printf("StarthandleInitialLayers can't extablish baseConn\n")
} }
return return
} }
@@ -291,7 +291,7 @@ func listenSer(inServer proxy.Server, defaultOutClientForThis proxy.Client) {
newConn, ok := <-newConnChan newConn, ok := <-newConnChan
if !ok { if !ok {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("read from SuperProxy not ok") log.Printf("read from SuperProxy not ok\n")
} }
@@ -313,7 +313,7 @@ func listenSer(inServer proxy.Server, defaultOutClientForThis proxy.Client) {
}() }()
if utils.CanLogInfo() { if utils.CanLogInfo() {
log.Println(proxy.GetFullName(inServer), "is listening ", inServer.Network(), "on", inServer.AddrStr()) log.Printf("%s is listening %s on %s\n", proxy.GetFullName(inServer), inServer.Network(), inServer.AddrStr())
} }
return return
@@ -328,13 +328,13 @@ func listenSer(inServer proxy.Server, defaultOutClientForThis proxy.Client) {
if err == nil { if err == nil {
if utils.CanLogInfo() { if utils.CanLogInfo() {
log.Println(proxy.GetFullName(inServer), "is listening ", network, "on", inServer.AddrStr()) log.Printf("%s is listening %s on %s\n", proxy.GetFullName(inServer), network, inServer.AddrStr())
} }
} else { } else {
if err != nil { if err != nil {
log.Fatalln("can not listen inServer on", inServer.AddrStr(), err) log.Fatalf("can not listen inServer on %s %s\n", inServer.AddrStr(), err)
} }
} }
@@ -392,7 +392,7 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
if utils.CanLogInfo() { if utils.CanLogInfo() {
str := wrappedConn.RemoteAddr().String() str := wrappedConn.RemoteAddr().String()
log.Println("New Accepted Conn from", str, ", being handled by "+proxy.GetVSI_url(inServer)) log.Printf("New Accepted Conn from %s , being handled by %s\n", str, proxy.GetVSI_url(inServer))
iics.cachedRemoteAddr = str iics.cachedRemoteAddr = str
} }
@@ -419,7 +419,7 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("failed in inServer tls handshake ", inServer.AddrStr(), err) log.Printf("failed in inServer tls handshake %s %s\n", inServer.AddrStr(), err)
} }
wrappedConn.Close() wrappedConn.Close()
@@ -450,7 +450,7 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
// 我们直接循环监听然后分别用 新goroutine发向 handshakeInserver_and_passToOutClient // 我们直接循环监听然后分别用 新goroutine发向 handshakeInserver_and_passToOutClient
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("start upgrade grpc") log.Printf("start upgrade grpc\n")
} }
grpcs := inServer.GetGRPC_Server() //这个grpc server是在配置阶段初始化好的. grpcs := inServer.GetGRPC_Server() //这个grpc server是在配置阶段初始化好的.
@@ -464,7 +464,7 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
newGConn, ok := <-grpcs.NewConnChan newGConn, ok := <-grpcs.NewConnChan
if !ok { if !ok {
if utils.CanLogWarn() { if utils.CanLogWarn() {
log.Println("grpc getNewSubConn not ok") log.Printf("grpc getNewSubConn not ok\n")
} }
iics.baseLocalConn.Close() iics.baseLocalConn.Close()
@@ -487,12 +487,12 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
if re != nil { if re != nil {
if re == httpLayer.ErrNotHTTP_Request { if re == httpLayer.ErrNotHTTP_Request {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("ws: got not http request ", inServer.AddrStr()) log.Printf("ws: got not http request %s\n", inServer.AddrStr())
} }
} else { } else {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("ws: handshake read error ", inServer.AddrStr()) log.Printf("ws: handshake read error %s\n", inServer.AddrStr())
} }
} }
@@ -507,7 +507,7 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
iics.theFallbackFirstBuffer = rp.WholeRequestBuf iics.theFallbackFirstBuffer = rp.WholeRequestBuf
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("ws path not match", rp.Method, rp.Path, "should be:", wss.Thepath) log.Printf("ws path not match %s %s should be: %s\n", rp.Method, rp.Path, wss.Thepath)
} }
@@ -520,7 +520,7 @@ func handleNewIncomeConnection(inServer proxy.Server, defaultClientForThis proxy
wsConn, err := wss.Handshake(rp.WholeRequestBuf, wrappedConn) wsConn, err := wss.Handshake(rp.WholeRequestBuf, wrappedConn)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("failed in inServer websocket handshake ", inServer.AddrStr(), err) log.Printf("failed in inServer websocket handshake %s %s\n", inServer.AddrStr(), err)
} }
@@ -550,7 +550,7 @@ func handshakeInserver_and_passToOutClient(iics incomingInserverConnState) {
inServer := iics.inServer inServer := iics.inServer
var wlc io.ReadWriteCloser var wlc io.ReadWriteCloser
var targetAddr *netLayer.Addr var targetAddr netLayer.Addr
var err error var err error
if iics.shouldFallback { if iics.shouldFallback {
@@ -571,7 +571,7 @@ func handshakeInserver_and_passToOutClient(iics incomingInserverConnState) {
wlc = nil wlc = nil
if utils.CanLogWarn() { if utils.CanLogWarn() {
log.Println("failed in inServer proxy handshake from", inServer.AddrStr(), err) log.Printf("failed in inServer proxy handshake from %s %s\n", inServer.AddrStr(), err)
} }
if !inServer.CanFallback() { if !inServer.CanFallback() {
@@ -591,7 +591,7 @@ func handshakeInserver_and_passToOutClient(iics incomingInserverConnState) {
iics.theFallbackFirstBuffer = fe.First iics.theFallbackFirstBuffer = fe.First
if iics.theFallbackFirstBuffer == nil { if iics.theFallbackFirstBuffer == nil {
//不应该，至少能读到1字节的。 //不应该，至少能读到1字节的。
log.Fatal("No FirstBuffer") log.Fatalf("No FirstBuffer\n")
} }
} }
@@ -602,7 +602,7 @@ checkFallback:
if mainFallback != nil { if mainFallback != nil {
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("checkFallback") log.Printf("checkFallback\n")
} }
var thisFallbackType byte var thisFallbackType byte
@@ -649,10 +649,10 @@ checkFallback:
fbAddr := mainFallback.GetFallback(thisFallbackType, fallback_params...) fbAddr := mainFallback.GetFallback(thisFallbackType, fallback_params...)
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("checkFallback ,matched fallback:", fbAddr) log.Printf("checkFallback ,matched fallback: %s\n", fbAddr.String())
} }
if fbAddr != nil { if fbAddr != nil {
targetAddr = fbAddr targetAddr = *fbAddr
wlc = wrappedConn wlc = wrappedConn
goto afterLocalServerHandshake goto afterLocalServerHandshake
} }
@@ -661,7 +661,7 @@ checkFallback:
//默认回落, 每个listen配置 都可 有一个自己独享的默认回落 //默认回落, 每个listen配置 都可 有一个自己独享的默认回落
if defaultFallbackAddr := inServer.GetFallback(); defaultFallbackAddr != nil { if defaultFallbackAddr := inServer.GetFallback(); !defaultFallbackAddr.IsEmpty() {
targetAddr = defaultFallbackAddr targetAddr = defaultFallbackAddr
wlc = wrappedConn wlc = wrappedConn
@@ -673,7 +673,7 @@ afterLocalServerHandshake:
if wlc == nil { if wlc == nil {
//无wlc证明 inServer 握手失败，且 没有任何回落可用, 直接return //无wlc证明 inServer 握手失败，且 没有任何回落可用, 直接return
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("invalid request and no matched fallback, hung up.") log.Printf("invalid request and no matched fallback, hung up.\n")
} }
wrappedConn.Close() wrappedConn.Close()
return return
@@ -692,7 +692,7 @@ afterLocalServerHandshake:
} }
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("try routing", desc) log.Printf("try routing %v\n", desc)
} }
outtag := routePolicy.GetOutTag(desc) outtag := routePolicy.GetOutTag(desc)
@@ -702,7 +702,7 @@ afterLocalServerHandshake:
iics.routedToDirect = true iics.routedToDirect = true
if utils.CanLogInfo() { if utils.CanLogInfo() {
log.Println("routed to direct", targetAddr.UrlString()) log.Printf("routed to direct %s\n", targetAddr.UrlString())
} }
} else { } else {
//log.Println("outtag", outtag, clientsTagMap) //log.Println("outtag", outtag, clientsTagMap)
@@ -710,7 +710,7 @@ afterLocalServerHandshake:
if tagC, ok := clientsTagMap[outtag]; ok { if tagC, ok := clientsTagMap[outtag]; ok {
client = tagC client = tagC
if utils.CanLogInfo() { if utils.CanLogInfo() {
log.Println("routed to", outtag, proxy.GetFullName(client)) log.Printf("routed to %s %s\n", outtag, proxy.GetFullName(client))
} }
} }
} }
@@ -743,7 +743,7 @@ afterLocalServerHandshake:
if isTlsLazy_clientEnd || iics.isTlsLazyServerEnd { if isTlsLazy_clientEnd || iics.isTlsLazyServerEnd {
if tlsLayer.PDD { if tlsLayer.PDD {
log.Println("loading TLS SniffConn", isTlsLazy_clientEnd, iics.isTlsLazyServerEnd) log.Printf("loading TLS SniffConn %t %t\n", isTlsLazy_clientEnd, iics.isTlsLazyServerEnd)
} }
wlc = tlsLayer.NewSniffConn(iics.baseLocalConn, wlc, isTlsLazy_clientEnd, tls_lazy_secure) wlc = tlsLayer.NewSniffConn(iics.baseLocalConn, wlc, isTlsLazy_clientEnd, tls_lazy_secure)
@@ -836,7 +836,7 @@ afterLocalServerHandshake:
unknownRemoteAddrMsgWriter = theCRUMFURS unknownRemoteAddrMsgWriter = theCRUMFURS
uniExtractor := netLayer.NewUniUDP_Extractor(targetAddr.ToUDPAddr(), wlc, unknownRemoteAddrMsgWriter) uniExtractor := netLayer.NewUniUDP_Extractor(*targetAddr.ToUDPAddr(), wlc, unknownRemoteAddrMsgWriter)
netLayer.RelayUDP_to_Direct(uniExtractor) //阻塞 netLayer.RelayUDP_to_Direct(uniExtractor) //阻塞
@@ -847,7 +847,7 @@ afterLocalServerHandshake:
// 此时socks5包已经帮我们dial好了一个udp连接，即wlc，但是还未读取到客户端想要访问的东西 // 此时socks5包已经帮我们dial好了一个udp连接，即wlc，但是还未读取到客户端想要访问的东西
udpConn := wlc.(*socks5.UDPConn) udpConn := wlc.(*socks5.UDPConn)
dialFunc := func(targetAddr *netLayer.Addr) (io.ReadWriter, error) { dialFunc := func(targetAddr netLayer.Addr) (io.ReadWriter, error) {
return dialClient(incomingInserverConnState{}, targetAddr, client, false, nil, true) return dialClient(incomingInserverConnState{}, targetAddr, client, false, nil, true)
} }
@@ -871,7 +871,7 @@ afterLocalServerHandshake:
} else { } else {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("socks5 server -> client for udp, but client didn't implement netLayer.UDP_Putter", client.Name()) log.Printf("socks5 server -> client for udp, but client didn't implement netLayer.UDP_Putter, %s\n", client.Name())
} }
} }
return return
@@ -892,7 +892,7 @@ afterLocalServerHandshake:
//client为真实要拨号的client，可能会与iics里的defaultClient不同。以client为准。 //client为真实要拨号的client，可能会与iics里的defaultClient不同。以client为准。
// wlc为调用者所提供的 此请求的 来源 链接。wlc主要用于 Copy阶段. // wlc为调用者所提供的 此请求的 来源 链接。wlc主要用于 Copy阶段.
// noCopy是为了让其它调用者自行处理 转发 时使用。 // noCopy是为了让其它调用者自行处理 转发 时使用。
func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, client proxy.Client, isTlsLazy_clientEnd bool, wlc io.ReadWriteCloser, noCopy bool) (io.ReadWriter, error) { func dialClient(iics incomingInserverConnState, targetAddr netLayer.Addr, client proxy.Client, isTlsLazy_clientEnd bool, wlc io.ReadWriteCloser, noCopy bool) (io.ReadWriter, error) {
if iics.shouldCloseInSerBaseConnWhenFinish && !noCopy { if iics.shouldCloseInSerBaseConnWhenFinish && !noCopy {
if iics.baseLocalConn != nil { if iics.baseLocalConn != nil {
@@ -906,18 +906,18 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
//direct的话自己是没有目的地址的，直接使用 请求的地址 //direct的话自己是没有目的地址的，直接使用 请求的地址
// 而其它代理的话, realTargetAddr会被设成实际配置的代理的地址 // 而其它代理的话, realTargetAddr会被设成实际配置的代理的地址
var realTargetAddr *netLayer.Addr = targetAddr var realTargetAddr netLayer.Addr = targetAddr
if uniqueTestDomain != "" && uniqueTestDomain != targetAddr.Name { if uniqueTestDomain != "" && uniqueTestDomain != targetAddr.Name {
if utils.CanLogDebug() { if utils.CanLogDebug() {
log.Println("request isn't the appointed domain", targetAddr, uniqueTestDomain) log.Printf("request isn't the appointed domain, %s, %s\n", targetAddr.String(), uniqueTestDomain)
} }
return nil, utils.NumErr{N: 1, Prefix: "dialClient err, "} return nil, utils.NumErr{N: 1, Prefix: "dialClient err, "}
} }
if utils.CanLogInfo() { if utils.CanLogInfo() {
log.Println(iics.cachedRemoteAddr, " request ", targetAddr.UrlString(), "through", proxy.GetVSI_url(client)) log.Printf("%s request %s through %s\n", iics.cachedRemoteAddr, targetAddr.UrlString(), proxy.GetVSI_url(client))
} }
@@ -926,7 +926,7 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
realTargetAddr, err = netLayer.NewAddr(client.AddrStr()) realTargetAddr, err = netLayer.NewAddr(client.AddrStr())
if err != nil { if err != nil {
log.Fatal("convert addr err:", err) log.Fatalf("convert addr err:%s\n", err)
} }
realTargetAddr.Network = client.Network() realTargetAddr.Network = client.Network()
} }
@@ -943,7 +943,7 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
switch client.AdvancedLayer() { switch client.AdvancedLayer() {
case "grpc": case "grpc":
grpcClientConn = grpc.GetEstablishedConnFor(realTargetAddr) grpcClientConn = grpc.GetEstablishedConnFor(&realTargetAddr)
if grpcClientConn != nil { if grpcClientConn != nil {
//如果有已经建立好的连接，则跳过拨号阶段 //如果有已经建立好的连接，则跳过拨号阶段
@@ -951,7 +951,7 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
} }
case "quic": case "quic":
//quic这里并不是在tls层基础上进行dial，而是直接dial //quic这里并不是在tls层基础上进行dial，而是直接dial
dailedCommonConn = client.DialCommonInitialLayerConnFunc()(realTargetAddr) dailedCommonConn = client.DialCommonInitialLayerConnFunc()(&realTargetAddr)
if dailedCommonConn != nil { if dailedCommonConn != nil {
//如果有已经建立好的连接，则跳过拨号阶段 //如果有已经建立好的连接，则跳过拨号阶段
goto advLayerStep goto advLayerStep
@@ -965,7 +965,7 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
clientConn, err = realTargetAddr.Dial() clientConn, err = realTargetAddr.Dial()
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("failed in dial", realTargetAddr.String(), ", Reason: ", err) log.Printf("failed in dial %s , Reason: , %s\n", realTargetAddr.String(), err)
} }
return nil, utils.NumErr{N: 2, Prefix: "dialClient err, "} return nil, utils.NumErr{N: 2, Prefix: "dialClient err, "}
@@ -986,7 +986,7 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
// 而且为了避免黑客攻击或探测，我们要使用uuid作为特殊指令，此时需要 UserServer和 UserClient // 而且为了避免黑客攻击或探测，我们要使用uuid作为特殊指令，此时需要 UserServer和 UserClient
if uc := client.(proxy.UserClient); uc != nil { if uc := client.(proxy.UserClient); uc != nil {
tryTlsLazyRawCopy(true, uc, nil, targetAddr, clientConn, wlc, nil, true, nil) tryTlsLazyRawCopy(true, uc, nil, &targetAddr, clientConn, wlc, nil, true, nil)
} }
@@ -1002,7 +1002,7 @@ func dialClient(iics incomingInserverConnState, targetAddr *netLayer.Addr, clien
tlsConn, err := client.GetTLS_Client().Handshake(clientConn) tlsConn, err := client.GetTLS_Client().Handshake(clientConn)
if err != nil { if err != nil {
log.Println("failed in handshake outClient tls", targetAddr.String(), ", Reason: ", err) log.Printf("failed in handshake outClient tls %s, Reason: %s\n", targetAddr.String(), err)
return nil, utils.NumErr{N: 4, Prefix: "dialClient err, "} return nil, utils.NumErr{N: 4, Prefix: "dialClient err, "}
} }
@@ -1020,16 +1020,16 @@ advLayerStep:
clientConn, err = client.DialSubConnFunc()(dailedCommonConn) clientConn, err = client.DialSubConnFunc()(dailedCommonConn)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("DialSubConnFunc failed,", err) log.Printf("DialSubConnFunc failed, %s\n", err)
} }
return nil, utils.NumErr{N: 14, Prefix: "DialSubConnFunc err, "} return nil, utils.NumErr{N: 14, Prefix: "DialSubConnFunc err, "}
} }
case "grpc": case "grpc":
if grpcClientConn == nil { if grpcClientConn == nil {
grpcClientConn, err = grpc.ClientHandshake(clientConn, realTargetAddr) grpcClientConn, err = grpc.ClientHandshake(clientConn, &realTargetAddr)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("grpc.ClientHandshake failed,", err) log.Printf("grpc.ClientHandshake failed, %s\n", err)
} }
if iics.baseLocalConn != nil { if iics.baseLocalConn != nil {
@@ -1041,10 +1041,10 @@ advLayerStep:
} }
clientConn, err = grpc.DialNewSubConn(client.Path(), grpcClientConn, realTargetAddr) clientConn, err = grpc.DialNewSubConn(client.Path(), grpcClientConn, &realTargetAddr)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("grpc.DialNewSubConn failed,", err) log.Printf("grpc.DialNewSubConn failed,%s\n", err)
//如果底层tcp连接被关闭了的话，错误会是： //如果底层tcp连接被关闭了的话，错误会是：
// rpc error: code = Unavailable desc = connection error: desc = "transport: failed to write client preface: tls: use of closed connection" // rpc error: code = Unavailable desc = connection error: desc = "transport: failed to write client preface: tls: use of closed connection"
@@ -1068,7 +1068,7 @@ advLayerStep:
n, e := wlc.Read(edBuf) n, e := wlc.Read(edBuf)
if e != nil { if e != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("err when reading ws early data", e) log.Printf("err when reading ws early data %s\n", e)
} }
return nil, utils.NumErr{N: 7, Prefix: "dialClient err, "} return nil, utils.NumErr{N: 7, Prefix: "dialClient err, "}
} }
@@ -1093,7 +1093,7 @@ advLayerStep:
//wc, err := wsClient.Handshake(clientConn, ed) //wc, err := wsClient.Handshake(clientConn, ed)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("failed in handshake ws to", targetAddr.String(), ", Reason: ", err) log.Printf("failed in handshake ws to %s , Reason: %s\n", targetAddr.String(), err)
} }
return nil, utils.NumErr{N: 8, Prefix: "dialClient err, "} return nil, utils.NumErr{N: 8, Prefix: "dialClient err, "}
@@ -1105,10 +1105,10 @@ advLayerStep:
////////////////////////////// 代理层 握手阶段 ///////////////////////////////////// ////////////////////////////// 代理层 握手阶段 /////////////////////////////////////
wrc, err := client.Handshake(clientConn, targetAddr) wrc, err := client.Handshake(clientConn, &targetAddr)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println("failed in handshake to", targetAddr.String(), ", Reason: ", err) log.Printf("failed in handshake to %s , Reason: %s\n", targetAddr.String(), err)
} }
return nil, utils.NumErr{N: 9, Prefix: "dialClient err, "} return nil, utils.NumErr{N: 9, Prefix: "dialClient err, "}
@@ -1154,7 +1154,7 @@ advLayerStep:
utils.PutBytes(iics.theFallbackFirstBuffer.Bytes()) //这个Buf不是从utils.GetBuf创建的，而是从一个 GetBytes的[]byte 包装 的，所以我们要PutBytes，而不是PutBuf utils.PutBytes(iics.theFallbackFirstBuffer.Bytes()) //这个Buf不是从utils.GetBuf创建的，而是从一个 GetBytes的[]byte 包装 的，所以我们要PutBytes，而不是PutBuf
} }
netLayer.Relay(realTargetAddr, wlc, wrc) netLayer.Relay(&realTargetAddr, wlc, wrc)
return wrc, nil return wrc, nil
} }

40
netLayer/addr.go
View File

@@ -48,8 +48,8 @@ func GetRandLocalAddr() string {
return "0.0.0.0:" + RandPortStr() return "0.0.0.0:" + RandPortStr()
} }
func NewAddrFromUDPAddr(addr *net.UDPAddr) *Addr { func NewAddrFromUDPAddr(addr *net.UDPAddr) Addr {
return &Addr{ return Addr{
IP: addr.IP, IP: addr.IP,
Port: addr.Port, Port: addr.Port,
Network: "udp", Network: "udp",
@@ -57,27 +57,27 @@ func NewAddrFromUDPAddr(addr *net.UDPAddr) *Addr {
} }
//addrStr格式一般为 host:port ；如果不含冒号，将直接认为该字符串是域名或文件名 //addrStr格式一般为 host:port ；如果不含冒号，将直接认为该字符串是域名或文件名
func NewAddr(addrStr string) (*Addr, error) { func NewAddr(addrStr string) (Addr, error) {
if !strings.Contains(addrStr, ":") { if !strings.Contains(addrStr, ":") {
//unix domain socket, 或者域名默认端口的情况 //unix domain socket, 或者域名默认端口的情况
return &Addr{Name: addrStr}, nil return Addr{Name: addrStr}, nil
} }
return NewAddrByHostPort(addrStr) return NewAddrByHostPort(addrStr)
} }
//hostPortStr格式 必须为 host:port，本函数不对此检查 //hostPortStr格式 必须为 host:port，本函数不对此检查
func NewAddrByHostPort(hostPortStr string) (*Addr, error) { func NewAddrByHostPort(hostPortStr string) (Addr, error) {
host, portStr, err := net.SplitHostPort(hostPortStr) host, portStr, err := net.SplitHostPort(hostPortStr)
if err != nil { if err != nil {
return nil, err return Addr{}, err
} }
if host == "" { if host == "" {
host = "127.0.0.1" host = "127.0.0.1"
} }
port, err := strconv.Atoi(portStr) port, err := strconv.Atoi(portStr)
a := &Addr{Port: port} a := Addr{Port: port}
if ip := net.ParseIP(host); ip != nil { if ip := net.ParseIP(host); ip != nil {
a.IP = ip a.IP = ip
} else { } else {
@@ -88,27 +88,27 @@ func NewAddrByHostPort(hostPortStr string) (*Addr, error) {
// 如 tcp://127.0.0.1:443 , tcp://google.com:443 ; // 如 tcp://127.0.0.1:443 , tcp://google.com:443 ;
// 不支持unix domain socket, 因为它是文件路径, / 还需要转义，太麻烦;不是我们代码麻烦, 而是怕用户嫌麻烦 // 不支持unix domain socket, 因为它是文件路径, / 还需要转义，太麻烦;不是我们代码麻烦, 而是怕用户嫌麻烦
func NewAddrByURL(addrStr string) (*Addr, error) { func NewAddrByURL(addrStr string) (Addr, error) {
u, err := url.Parse(addrStr) u, err := url.Parse(addrStr)
if err != nil { if err != nil {
return nil, err return Addr{}, err
} }
if u.Scheme == "unix" { if u.Scheme == "unix" {
return nil, errors.New("parse unix domain socket by url is not supported") return Addr{}, errors.New("parse unix domain socket by url is not supported")
} }
addrStr = u.Host addrStr = u.Host
host, portStr, err := net.SplitHostPort(addrStr) host, portStr, err := net.SplitHostPort(addrStr)
if err != nil { if err != nil {
return nil, err return Addr{}, err
} }
if host == "" { if host == "" {
host = "127.0.0.1" host = "127.0.0.1"
} }
port, err := strconv.Atoi(portStr) port, err := strconv.Atoi(portStr)
a := &Addr{Port: port} a := Addr{Port: port}
if ip := net.ParseIP(host); ip != nil { if ip := net.ParseIP(host); ip != nil {
a.IP = ip a.IP = ip
} else { } else {
@@ -121,7 +121,7 @@ func NewAddrByURL(addrStr string) (*Addr, error) {
} }
//会根据thing的类型 生成实际addr； 可以为数字端口，或者带冒号的字符串，或者一个 文件路径(unix domain socket) //会根据thing的类型 生成实际addr； 可以为数字端口，或者带冒号的字符串，或者一个 文件路径(unix domain socket)
func NewAddrFromAny(thing any) (addr *Addr, err error) { func NewAddrFromAny(thing any) (addr Addr, err error) {
var integer int var integer int
var dest_type byte = 0 //0: port, 1: ip:port, 2: unix domain socket var dest_type byte = 0 //0: port, 1: ip:port, 2: unix domain socket
var dest_string string var dest_string string
@@ -130,7 +130,7 @@ func NewAddrFromAny(thing any) (addr *Addr, err error) {
case float64: //json 默认把数字转换成float64，就算是整数也一样 case float64: //json 默认把数字转换成float64，就算是整数也一样
if value > 65535 || value < 1 { if value > 65535 || value < 1 {
err = utils.NewDataErr("int port not valid", nil, value) err = utils.ErrInErr{ErrDesc: "int port not valid", Data: value}
return return
} }
@@ -152,24 +152,24 @@ func NewAddrFromAny(thing any) (addr *Addr, err error) {
} }
default: default:
err = utils.NewDataErr("Fallback dest config type err", nil, reflect.TypeOf(thing)) err = utils.ErrInErr{ErrDesc: "Fallback dest config type err", Data: reflect.TypeOf(thing)}
return return
} }
switch dest_type { switch dest_type {
case 0: case 0:
addr = &Addr{ addr = Addr{
IP: net.IPv4(127, 0, 0, 1), IP: net.IPv4(127, 0, 0, 1),
Port: integer, Port: integer,
} }
case 1: case 1:
addr, err = NewAddrByHostPort(dest_string) addr, err = NewAddrByHostPort(dest_string)
if err != nil { if err != nil {
err = utils.NewDataErr("addr create with given string failed", err, dest_string) err = utils.ErrInErr{ErrDesc: "addr create with given string failed", ErrDetail: err, Data: dest_string}
return return
} }
case 2: case 2:
addr = &Addr{ addr = Addr{
Network: "unix", Network: "unix",
Name: dest_string, Name: dest_string,
} }
@@ -212,6 +212,10 @@ func (a *Addr) UrlString() string {
} }
func (a *Addr) IsEmpty() bool {
return a.Name == "" && len(a.IP) == 0 && a.Network == "" && a.Port == 0
}
func (a *Addr) GetNetIPAddr() (na netip.Addr) { func (a *Addr) GetNetIPAddr() (na netip.Addr) {
if len(a.IP) < 1 { if len(a.IP) < 1 {
return return

2
netLayer/listen.go
View File

@@ -70,7 +70,7 @@ func ListenAndAccept(network, addr string, acceptFunc func(net.Conn)) error {
} }
err := os.Remove(addr) err := os.Remove(addr)
if err != nil { if err != nil {
return utils.NewDataErr("Error when deleting previous unix socket file,", err, addr) return utils.ErrInErr{ErrDesc: "Error when deleting previous unix socket file,", ErrDetail: err, Data: addr}
} }
} }

6
netLayer/route.go
View File

@@ -10,7 +10,7 @@ import (
// TargetDescription 可以完整地描述一个网络层/传输层上的一个特定目标, // TargetDescription 可以完整地描述一个网络层/传输层上的一个特定目标,
// 一般来说，一个具体的监听配置就会分配一个tag // 一般来说，一个具体的监听配置就会分配一个tag
type TargetDescription struct { type TargetDescription struct {
Addr *Addr Addr Addr
Tag string Tag string
} }
@@ -72,7 +72,7 @@ func (sg *RouteSet) IsTransportProtocolAllowed(p uint16) bool {
return sg.AllowedTransportLayerProtocols&p > 0 return sg.AllowedTransportLayerProtocols&p > 0
} }
func (sg *RouteSet) IsAddrNetworkAllowed(a *Addr) bool { func (sg *RouteSet) IsAddrNetworkAllowed(a Addr) bool {
if a.Network == "" { if a.Network == "" {
return sg.IsTransportProtocolAllowed(TCP) return sg.IsTransportProtocolAllowed(TCP)
@@ -91,7 +91,7 @@ func (sg *RouteSet) IsTCPAllowed() bool {
return sg.IsTransportProtocolAllowed(TCP) return sg.IsTransportProtocolAllowed(TCP)
} }
func (sg *RouteSet) IsAddrIn(a *Addr) bool { func (sg *RouteSet) IsAddrIn(a Addr) bool {
//我们先过滤传输层，再过滤网络层 //我们先过滤传输层，再过滤网络层
if !sg.IsAddrNetworkAllowed(a) { if !sg.IsAddrNetworkAllowed(a) {

40
netLayer/udp_relay.go
View File

@@ -13,7 +13,7 @@ const (
//本文件内含 一些 转发 udp 数据的 接口与方法 //本文件内含 一些 转发 udp 数据的 接口与方法
// 阻塞. // 阻塞.
func RelayUDP(putter UDP_Putter, extractor UDP_Extractor, dialFunc func(targetAddr *Addr) (io.ReadWriter, error)) { func RelayUDP(putter UDP_Putter, extractor UDP_Extractor, dialFunc func(targetAddr Addr) (io.ReadWriter, error)) {
go func() { go func() {
for { for {
@@ -43,11 +43,11 @@ func RelayUDP(putter UDP_Putter, extractor UDP_Extractor, dialFunc func(targetAd
//////////////////// 接口 //////////////////// //////////////////// 接口 ////////////////////
type UDPRequestReader interface { type UDPRequestReader interface {
GetNewUDPRequest() (*net.UDPAddr, []byte, error) GetNewUDPRequest() (net.UDPAddr, []byte, error)
} }
type UDPResponseWriter interface { type UDPResponseWriter interface {
WriteUDPResponse(*net.UDPAddr, []byte) error WriteUDPResponse(net.UDPAddr, []byte) error
} }
// UDP_Extractor, 用于从一个虚拟的协议中提取出 udp请求 // UDP_Extractor, 用于从一个虚拟的协议中提取出 udp请求
@@ -61,12 +61,12 @@ type UDP_Extractor interface {
// 写入一个UDP请求; 可以包裹成任意协议。 // 写入一个UDP请求; 可以包裹成任意协议。
// 因为有时该地址从来没申请过，所以此时就要用dialFunc创建一个新连接 // 因为有时该地址从来没申请过，所以此时就要用dialFunc创建一个新连接
type UDPRequestWriter interface { type UDPRequestWriter interface {
WriteUDPRequest(target *net.UDPAddr, request []byte, dialFunc func(targetAddr *Addr) (io.ReadWriter, error)) error WriteUDPRequest(target net.UDPAddr, request []byte, dialFunc func(targetAddr Addr) (io.ReadWriter, error)) error
} }
//拉取一个新的 UDP 响应 //拉取一个新的 UDP 响应
type UDPResponseReader interface { type UDPResponseReader interface {
GetNewUDPResponse() (*net.UDPAddr, []byte, error) GetNewUDPResponse() (net.UDPAddr, []byte, error)
} }
// UDP_Putter, 用于把 udp请求转换成 虚拟的协议 // UDP_Putter, 用于把 udp请求转换成 虚拟的协议
@@ -85,14 +85,14 @@ type UDP_Putter interface {
// 对于 vless v1来说, unknownRemoteAddrMsgWriter 要做的 就是 新建一个与服务端的 请求udp的连接， // 对于 vless v1来说, unknownRemoteAddrMsgWriter 要做的 就是 新建一个与服务端的 请求udp的连接，
// 然后这个新连接就变成了新的 UniUDP_Putter // 然后这个新连接就变成了新的 UniUDP_Putter
type UniUDP_Putter struct { type UniUDP_Putter struct {
targetAddr *net.UDPAddr targetAddr net.UDPAddr
io.ReadWriter io.ReadWriter
unknownRemoteAddrMsgWriter UDPRequestWriter unknownRemoteAddrMsgWriter UDPRequestWriter
} }
// //
func (e *UniUDP_Putter) GetNewUDPResponse() (*net.UDPAddr, []byte, error) { func (e *UniUDP_Putter) GetNewUDPResponse() (net.UDPAddr, []byte, error) {
bs := make([]byte, MaxUDP_packetLen) bs := make([]byte, MaxUDP_packetLen)
n, err := e.ReadWriter.Read(bs) n, err := e.ReadWriter.Read(bs)
if err != nil { if err != nil {
@@ -101,7 +101,7 @@ func (e *UniUDP_Putter) GetNewUDPResponse() (*net.UDPAddr, []byte, error) {
return e.targetAddr, bs[:n], nil return e.targetAddr, bs[:n], nil
} }
func (e *UniUDP_Putter) WriteUDPRequest(addr *net.UDPAddr, bs []byte, dialFunc func(targetAddr *Addr) (io.ReadWriter, error)) (err error) { func (e *UniUDP_Putter) WriteUDPRequest(addr net.UDPAddr, bs []byte, dialFunc func(targetAddr Addr) (io.ReadWriter, error)) (err error) {
if addr.String() == e.targetAddr.String() { if addr.String() == e.targetAddr.String() {
_, err = e.ReadWriter.Write(bs) _, err = e.ReadWriter.Write(bs)
@@ -122,14 +122,14 @@ func (e *UniUDP_Putter) WriteUDPRequest(addr *net.UDPAddr, bs []byte, dialFunc f
// 收到的响应数据的来源 如果和 targetAddr 相同的话，直接写入传入的 ReadWriter // 收到的响应数据的来源 如果和 targetAddr 相同的话，直接写入传入的 ReadWriter
// 收到的外界数据的来源 如果和 targetAddr 不同的话，那肯定就是使用了fullcone，那么要传入 unknownRemoteAddrMsgWriter； 如果New时传入unknownRemoteAddrMsgWriter的 是nil的话，那么意思就是不支持fullcone，将直接舍弃这一部分数据。 // 收到的外界数据的来源 如果和 targetAddr 不同的话，那肯定就是使用了fullcone，那么要传入 unknownRemoteAddrMsgWriter； 如果New时传入unknownRemoteAddrMsgWriter的 是nil的话，那么意思就是不支持fullcone，将直接舍弃这一部分数据。
type UniUDP_Extractor struct { type UniUDP_Extractor struct {
targetAddr *net.UDPAddr targetAddr net.UDPAddr
io.ReadWriter io.ReadWriter
unknownRemoteAddrMsgWriter UDPResponseWriter unknownRemoteAddrMsgWriter UDPResponseWriter
} }
// 新建，unknownRemoteAddrMsgWriter 用于写入 未知来源响应，rw 用于普通的客户请求的目标的响应 // 新建，unknownRemoteAddrMsgWriter 用于写入 未知来源响应，rw 用于普通的客户请求的目标的响应
func NewUniUDP_Extractor(addr *net.UDPAddr, rw io.ReadWriter, unknownRemoteAddrMsgWriter UDPResponseWriter) *UniUDP_Extractor { func NewUniUDP_Extractor(addr net.UDPAddr, rw io.ReadWriter, unknownRemoteAddrMsgWriter UDPResponseWriter) *UniUDP_Extractor {
return &UniUDP_Extractor{ return &UniUDP_Extractor{
targetAddr: addr, targetAddr: addr,
ReadWriter: rw, ReadWriter: rw,
@@ -138,7 +138,7 @@ func NewUniUDP_Extractor(addr *net.UDPAddr, rw io.ReadWriter, unknownRemoteAddrM
} }
// 从客户端连接中 提取出 它的 UDP请求，就是直接读取数据。然后搭配上之前设置好的地址 // 从客户端连接中 提取出 它的 UDP请求，就是直接读取数据。然后搭配上之前设置好的地址
func (e *UniUDP_Extractor) GetNewUDPRequest() (*net.UDPAddr, []byte, error) { func (e *UniUDP_Extractor) GetNewUDPRequest() (net.UDPAddr, []byte, error) {
bs := make([]byte, MaxUDP_packetLen) bs := make([]byte, MaxUDP_packetLen)
n, err := e.ReadWriter.Read(bs) n, err := e.ReadWriter.Read(bs)
if err != nil { if err != nil {
@@ -150,7 +150,7 @@ func (e *UniUDP_Extractor) GetNewUDPRequest() (*net.UDPAddr, []byte, error) {
// WriteUDPResponse 写入远程服务器的响应；要分情况讨论。 // WriteUDPResponse 写入远程服务器的响应；要分情况讨论。
// 因为是单一目标extractor，所以正常情况下 传入的response 的源地址 也 应和 e.targetAddr 相同， // 因为是单一目标extractor，所以正常情况下 传入的response 的源地址 也 应和 e.targetAddr 相同，
// 如果地址不同的话，那肯定就是使用了fullcone，那么要传入 unknownRemoteAddrMsgWriter // 如果地址不同的话，那肯定就是使用了fullcone，那么要传入 unknownRemoteAddrMsgWriter
func (e *UniUDP_Extractor) WriteUDPResponse(addr *net.UDPAddr, bs []byte) (err error) { func (e *UniUDP_Extractor) WriteUDPResponse(addr net.UDPAddr, bs []byte) (err error) {
if addr.String() == e.targetAddr.String() { if addr.String() == e.targetAddr.String() {
_, err = e.ReadWriter.Write(bs) _, err = e.ReadWriter.Write(bs)
@@ -168,7 +168,7 @@ func (e *UniUDP_Extractor) WriteUDPResponse(addr *net.UDPAddr, bs []byte) (err e
} }
type UDPAddrData struct { type UDPAddrData struct {
Addr *net.UDPAddr Addr net.UDPAddr
Data []byte Data []byte
} }
@@ -183,20 +183,20 @@ func NewUDP_Pipe() *UDP_Pipe {
responseChan: make(chan UDPAddrData, 10), responseChan: make(chan UDPAddrData, 10),
} }
} }
func (u *UDP_Pipe) GetNewUDPRequest() (*net.UDPAddr, []byte, error) { func (u *UDP_Pipe) GetNewUDPRequest() (net.UDPAddr, []byte, error) {
d := <-u.requestChan d := <-u.requestChan
return d.Addr, d.Data, nil return d.Addr, d.Data, nil
} }
func (u *UDP_Pipe) GetNewUDPResponse() (*net.UDPAddr, []byte, error) { func (u *UDP_Pipe) GetNewUDPResponse() (net.UDPAddr, []byte, error) {
d := <-u.responseChan d := <-u.responseChan
return d.Addr, d.Data, nil return d.Addr, d.Data, nil
} }
// 会保存bs的副本，不必担心数据被改变的问题。 // 会保存bs的副本，不必担心数据被改变的问题。
func (u *UDP_Pipe) WriteUDPResponse(addr *net.UDPAddr, bs []byte) error { func (u *UDP_Pipe) WriteUDPResponse(addr net.UDPAddr, bs []byte) error {
bsCopy := make([]byte, len(bs)) bsCopy := make([]byte, len(bs))
copy(bsCopy, bs) copy(bsCopy, bs)
@@ -208,7 +208,7 @@ func (u *UDP_Pipe) WriteUDPResponse(addr *net.UDPAddr, bs []byte) error {
} }
// 会保存bs的副本，不必担心数据被改变的问题。 // 会保存bs的副本，不必担心数据被改变的问题。
func (u *UDP_Pipe) WriteUDPRequest(addr *net.UDPAddr, bs []byte, dialFunc func(targetAddr *Addr) (io.ReadWriter, error)) error { func (u *UDP_Pipe) WriteUDPRequest(addr net.UDPAddr, bs []byte, dialFunc func(targetAddr Addr) (io.ReadWriter, error)) error {
bsCopy := make([]byte, len(bs)) bsCopy := make([]byte, len(bs))
copy(bsCopy, bs) copy(bsCopy, bs)
@@ -254,7 +254,7 @@ func RelayUDP_to_Direct(extractor UDP_Extractor) {
} else { } else {
newConn, err := net.DialUDP("udp", nil, addr) newConn, err := net.DialUDP("udp", nil, &addr)
if err != nil { if err != nil {
break break
} }
@@ -269,7 +269,7 @@ func RelayUDP_to_Direct(extractor UDP_Extractor) {
mutex.Unlock() mutex.Unlock()
//监听所有发往 newConn的 远程任意主机 发来的消息。 //监听所有发往 newConn的 远程任意主机 发来的消息。
go func(thisconn *net.UDPConn, supposedRemoteAddr *net.UDPAddr) { go func(thisconn *net.UDPConn, supposedRemoteAddr net.UDPAddr) {
bs := make([]byte, MaxUDP_packetLen) bs := make([]byte, MaxUDP_packetLen)
for { for {
//log.Println("redirect udp, start read", supposedRemoteAddr) //log.Println("redirect udp, start read", supposedRemoteAddr)
@@ -289,7 +289,7 @@ func RelayUDP_to_Direct(extractor UDP_Extractor) {
//log.Println("redirect udp, will write to extractor", string(bs[:n])) //log.Println("redirect udp, will write to extractor", string(bs[:n]))
err = extractor.WriteUDPResponse(raddr, bs[:n]) err = extractor.WriteUDPResponse(*raddr, bs[:n])
if err != nil { if err != nil {
break break
} }

30
proxy/config_simple.go
View File

@@ -18,27 +18,35 @@ type Simple struct {
MyCountryISO_3166 string `toml:"mycountry" json:"mycountry"` MyCountryISO_3166 string `toml:"mycountry" json:"mycountry"`
} }
func LoadSimpleConfigFile(fileNamePath string) (*Simple, error) { func LoadSimpleConfigFile(fileNamePath string) (config Simple, hasError bool, E utils.ErrInErr) {
if cf, err := os.Open(fileNamePath); err == nil { if cf, err := os.Open(fileNamePath); err == nil {
defer cf.Close() defer cf.Close()
bs, _ := ioutil.ReadAll(cf) bs, _ := ioutil.ReadAll(cf)
config := &Simple{} if err = json.Unmarshal(bs, &config); err != nil {
if err = json.Unmarshal(bs, config); err != nil { hasError = true
return nil, utils.NewDataErr("can not parse config file ", err, fileNamePath) E = utils.ErrInErr{
ErrDesc: "can not parse config file ",
ErrDetail: err,
Data: fileNamePath,
} }
return config, nil }
return
} else { } else {
return nil, utils.NewErr("can't open config file", err) hasError = true
E = utils.ErrInErr{ErrDesc: "can't open config file", ErrDetail: err}
return
} }
} }
func LoadSimpleConfigFromStr(str string) (*Simple, error) { func LoadSimpleConfigFromStr(str string) (config Simple, hasE bool, E utils.ErrInErr) {
config := &Simple{}
if err := json.Unmarshal([]byte(str), config); err != nil { if err := json.Unmarshal([]byte(str), &config); err != nil {
return nil, utils.NewErr("can not parse config ", err) E = utils.ErrInErr{ErrDesc: "can not parse config ", ErrDetail: err}
hasE = true
} }
return config, nil return
} }

9
proxy/config_standard.go
View File

@@ -130,21 +130,20 @@ type Standard struct {
App *AppConf `toml:"app"` App *AppConf `toml:"app"`
} }
func LoadTomlConfStr(str string) (c *Standard, err error) { func LoadTomlConfStr(str string) (c Standard, err error) {
c = &Standard{} _, err = toml.Decode(str, &c)
_, err = toml.Decode(str, c)
return return
} }
func LoadTomlConfFile(fileNamePath string) (*Standard, error) { func LoadTomlConfFile(fileNamePath string) (Standard, error) {
if cf, err := os.Open(fileNamePath); err == nil { if cf, err := os.Open(fileNamePath); err == nil {
defer cf.Close() defer cf.Close()
bs, _ := ioutil.ReadAll(cf) bs, _ := ioutil.ReadAll(cf)
return LoadTomlConfStr(string(bs)) return LoadTomlConfStr(string(bs))
} else { } else {
return nil, utils.NewErr("can't open config file", err) return Standard{}, utils.ErrInErr{ErrDesc: "can't open config file", ErrDetail: err}
} }
} }

4
proxy/config_test.go
View File

@@ -21,8 +21,8 @@ func TestClientSimpleConfig(t *testing.T) {
] ]
}` }`
mc, err := proxy.LoadSimpleConfigFromStr(confstr1) mc, hasE, err := proxy.LoadSimpleConfigFromStr(confstr1)
if err != nil { if hasE {
t.Log("loadConfigFromStr err", err) t.Log("loadConfigFromStr err", err)
t.FailNow() t.FailNow()
} }

48
proxy/creator.go
View File

@@ -68,17 +68,17 @@ func NewClient(dc *DialConf) (Client, error) {
} }
} }
return nil, utils.NewDataErr("unknown client protocol '", nil, protocol) return nil, utils.ErrInErr{ErrDesc: "unknown client protocol ", Data: protocol}
} }
// ClientFromURL calls the registered creator to create client. // ClientFromURL calls the registered creator to create client.
// dialer is the default upstream dialer so cannot be nil, we can use Default when calling this function. // dialer is the default upstream dialer so cannot be nil, we can use Default when calling this function.
func ClientFromURL(s string) (Client, error) { func ClientFromURL(s string) (Client, bool, utils.ErrInErr) {
u, err := url.Parse(s) u, err := url.Parse(s)
if err != nil { if err != nil {
return nil, utils.NewDataErr("can not parse client url", err, s) return nil, true, utils.ErrInErr{ErrDesc: "can not parse client url", ErrDetail: err, Data: s}
} }
schemeName := strings.ToLower(u.Scheme) schemeName := strings.ToLower(u.Scheme)
@@ -87,10 +87,10 @@ func ClientFromURL(s string) (Client, error) {
if ok { if ok {
c, e := creator.NewClientFromURL(u) c, e := creator.NewClientFromURL(u)
if e != nil { if e != nil {
return nil, e return nil, true, utils.ErrInErr{ErrDesc: "creator.NewClientFromURL err", ErrDetail: e}
} }
configCommonByURL(c, u) configCommonByURL(c, u)
return c, nil return c, false, utils.ErrInErr{}
} else { } else {
//尝试判断是否套tls, 比如vlesss实际上是vless+tls，https实际上是http+tls //尝试判断是否套tls, 比如vlesss实际上是vless+tls，https实际上是http+tls
@@ -100,20 +100,20 @@ func ClientFromURL(s string) (Client, error) {
if ok { if ok {
c, err := creator.NewClientFromURL(u) c, err := creator.NewClientFromURL(u)
if err != nil { if err != nil {
return c, err return nil, true, utils.ErrInErr{ErrDesc: "creator.NewClientFromURL err", ErrDetail: err}
} }
configCommonByURL(c, u) configCommonByURL(c, u)
c.SetUseTLS() c.SetUseTLS()
prepareTLS_forProxyCommon_withURL(u, true, c) prepareTLS_forProxyCommon_withURL(u, true, c)
return c, err return c, false, utils.ErrInErr{}
} }
} }
return nil, utils.NewDataErr("unknown client protocol '", nil, u.Scheme) return nil, false, utils.ErrInErr{ErrDesc: "unknown client protocol ", Data: u.Scheme}
} }
func NewServer(lc *ListenConf) (Server, error) { func NewServer(lc *ListenConf) (Server, error) {
@@ -130,7 +130,7 @@ func NewServer(lc *ListenConf) (Server, error) {
ser.SetUseTLS() ser.SetUseTLS()
err = prepareTLS_forServer(ser, lc) err = prepareTLS_forServer(ser, lc)
if err != nil { if err != nil {
log.Fatalln("prepareTLS error", err) log.Fatalf("prepareTLS error %s\n", err)
} }
return ser, nil return ser, nil
} }
@@ -149,24 +149,28 @@ func NewServer(lc *ListenConf) (Server, error) {
ser.SetUseTLS() ser.SetUseTLS()
err = prepareTLS_forServer(ser, lc) err = prepareTLS_forServer(ser, lc)
if err != nil { if err != nil {
log.Fatalln("prepareTLS error", err) log.Fatalf("prepareTLS error %s\n", err)
} }
return ser, nil return ser, nil
} }
} }
return nil, utils.NewDataErr("unknown server protocol '", nil, protocol) return nil, utils.ErrInErr{ErrDesc: "unknown server protocol ", Data: protocol}
} }
// ServerFromURL calls the registered creator to create proxy servers // ServerFromURL calls the registered creator to create proxy servers
// dialer is the default upstream dialer so cannot be nil, we can use Default when calling this function // dialer is the default upstream dialer so cannot be nil, we can use Default when calling this function
// 所有的server都可有 "norule"参数，标明无需路由或者此server不可使用路由，在监听多个ip时是有用的; // 所有的server都可有 "norule"参数，标明无需路由或者此server不可使用路由，在监听多个ip时是有用的;
// 路由配置可以在json的其他配置里面设置，如 mycountry项 // 路由配置可以在json的其他配置里面设置，如 mycountry项
func ServerFromURL(s string) (Server, error) { func ServerFromURL(s string) (Server, bool, utils.ErrInErr) {
u, err := url.Parse(s) u, err := url.Parse(s)
if err != nil { if err != nil {
return nil, utils.NewDataErr("can not parse server url ", err, s) return nil, true, utils.ErrInErr{
ErrDesc: "can not parse server url ",
ErrDetail: err,
Data: s,
}
} }
schemeName := strings.ToLower(u.Scheme) schemeName := strings.ToLower(u.Scheme)
@@ -174,29 +178,35 @@ func ServerFromURL(s string) (Server, error) {
if ok { if ok {
ser, err := creator.NewServerFromURL(u) ser, err := creator.NewServerFromURL(u)
if err != nil { if err != nil {
return nil, err return nil, true, utils.ErrInErr{
ErrDesc: "creator.NewServerFromURL err ",
ErrDetail: err,
}
} }
configCommonURLQueryForServer(ser, u) configCommonURLQueryForServer(ser, u)
return ser, nil return ser, false, utils.ErrInErr{}
} else { } else {
realScheme := strings.TrimSuffix(schemeName, "s") realScheme := strings.TrimSuffix(schemeName, "s")
creator, ok = serverCreatorMap[realScheme] creator, ok = serverCreatorMap[realScheme]
if ok { if ok {
server, err := creator.NewServerFromURL(u) server, err := creator.NewServerFromURL(u)
if err != nil { if err != nil {
return nil, err return nil, true, utils.ErrInErr{
ErrDesc: "creator.NewServerFromURL err ",
ErrDetail: err,
}
} }
configCommonURLQueryForServer(server, u) configCommonURLQueryForServer(server, u)
server.SetUseTLS() server.SetUseTLS()
prepareTLS_forProxyCommon_withURL(u, false, server) prepareTLS_forProxyCommon_withURL(u, false, server)
return server, nil return server, false, utils.ErrInErr{}
} }
} }
return nil, utils.NewDataErr("unknown server protocol '", nil, u.Scheme) return nil, true, utils.ErrInErr{ErrDesc: "unknown server protocol ", Data: u.Scheme}
} }
//setTag, setCantRoute, call configCommonByURL //setTag, setCantRoute, call configCommonByURL
@@ -218,7 +228,7 @@ func configCommonURLQueryForServer(ser ProxyCommon, u *url.URL) {
fa, err := netLayer.NewAddr(fallbackStr) fa, err := netLayer.NewAddr(fallbackStr)
if err != nil { if err != nil {
log.Fatalln("invalid fallback ", fallbackStr) log.Fatalf("invalid fallback %s\n", fallbackStr)
} }
ser.setFallback(fa) ser.setFallback(fa)

4
proxy/dokodemo/server.go
View File

@@ -73,7 +73,7 @@ func (_ ServerCreator) NewServer(lc *proxy.ListenConf) (proxy.Server, error) {
type Server struct { type Server struct {
proxy.ProxyCommonStruct proxy.ProxyCommonStruct
targetAddr *netLayer.Addr targetAddr netLayer.Addr
} }
func NewServer() (proxy.Server, error) { func NewServer() (proxy.Server, error) {
@@ -82,6 +82,6 @@ func NewServer() (proxy.Server, error) {
} }
func (d *Server) Name() string { return name } func (d *Server) Name() string { return name }
func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Addr, error) { func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, netLayer.Addr, error) {
return underlay, s.targetAddr, nil return underlay, s.targetAddr, nil
} }

4
proxy/http/server.go
View File

@@ -48,7 +48,7 @@ func (_ Server) Name() string {
return name return name
} }
func (s *Server) Handshake(underlay net.Conn) (newconn io.ReadWriteCloser, targetAddr *netLayer.Addr, err error) { func (s *Server) Handshake(underlay net.Conn) (newconn io.ReadWriteCloser, targetAddr netLayer.Addr, err error) {
var b = utils.GetMTU() //一般要获取请求信息，不需要那么长; 就算是http，加了path，也不用太长 var b = utils.GetMTU() //一般要获取请求信息，不需要那么长; 就算是http，加了path，也不用太长
//因为要储存为 firstdata，所以也无法直接放回 //因为要储存为 firstdata，所以也无法直接放回
@@ -67,7 +67,7 @@ func (s *Server) Handshake(underlay net.Conn) (newconn io.ReadWriteCloser, targe
method, path, failreason := httpLayer.GetRequestMethod_and_PATH_from_Bytes(b[:n], true) method, path, failreason := httpLayer.GetRequestMethod_and_PATH_from_Bytes(b[:n], true)
if failreason != 0 { if failreason != 0 {
err = utils.NewDataErr("get method/path failed, method:"+method+" ,reason:", nil, failreason) err = utils.ErrInErr{ErrDesc: "get method/path failed, method:" + method + " ,reason:", Data: failreason}
//一个正常的http代理如果遇到了 格式不符的情况的话是要返回 400 等错误代码的 //一个正常的http代理如果遇到了 格式不符的情况的话是要返回 400 等错误代码的
// 但是，也不能说不返回400的就是异常服务器，因为这可能是服务器自己的策略，无视一切错误请求，比如防黑客时就常常会如此. // 但是，也不能说不返回400的就是异常服务器，因为这可能是服务器自己的策略，无视一切错误请求，比如防黑客时就常常会如此.

28
proxy/proxy.go
View File

@@ -17,17 +17,19 @@ import (
) )
func PrintAllServerNames() { func PrintAllServerNames() {
fmt.Println("===============================\nSupported Server protocols:") fmt.Printf("===============================\nSupported Server protocols:\n")
for v := range serverCreatorMap { for v := range serverCreatorMap {
fmt.Println(v) fmt.Print(v)
fmt.Print("\n")
} }
} }
func PrintAllClientNames() { func PrintAllClientNames() {
fmt.Println("===============================\nSupported client protocols:") fmt.Printf("===============================\nSupported client protocols:\n")
for v := range clientCreatorMap { for v := range clientCreatorMap {
fmt.Println(v) fmt.Print(v)
fmt.Print("\n")
} }
} }
@@ -50,7 +52,7 @@ type Client interface {
type Server interface { type Server interface {
ProxyCommon ProxyCommon
Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Addr, error) Handshake(underlay net.Conn) (io.ReadWriteCloser, netLayer.Addr, error)
} }
// FullName 可以完整表示 一个 代理的 VSI 层级. // FullName 可以完整表示 一个 代理的 VSI 层级.
@@ -116,8 +118,8 @@ type ProxyCommon interface {
/////////////////// http层 /////////////////// /////////////////// http层 ///////////////////
//默认回落地址. //默认回落地址.
GetFallback() *netLayer.Addr GetFallback() netLayer.Addr
setFallback(*netLayer.Addr) setFallback(netLayer.Addr)
CanFallback() bool //如果能fallback，则handshake失败后，可能会专门返回 FallbackErr,如监测到返回了 FallbackErr, 则main函数会进行 回落处理. CanFallback() bool //如果能fallback，则handshake失败后，可能会专门返回 FallbackErr,如监测到返回了 FallbackErr, 则main函数会进行 回落处理.
@@ -196,7 +198,7 @@ func prepareTLS_forClient(com ProxyCommon, dc *DialConf) error {
if e != nil { if e != nil {
log.Fatalln("prepareTLS_forClient,quic,netLayer.NewAddr err: ", e) log.Fatalln("prepareTLS_forClient,quic,netLayer.NewAddr err: ", e)
} }
return quic.DialCommonInitialLayer(na, &tls.Config{ return quic.DialCommonInitialLayer(&na, tls.Config{
InsecureSkipVerify: dc.Insecure, InsecureSkipVerify: dc.Insecure,
ServerName: dc.Host, ServerName: dc.Host,
NextProtos: alpnList, NextProtos: alpnList,
@@ -275,10 +277,10 @@ func prepareTLS_forServer(com ProxyCommon, lc *ListenConf) error {
certArray, err := tlsLayer.GetCertArrayFromFile(lc.TLSCert, lc.TLSKey) certArray, err := tlsLayer.GetCertArrayFromFile(lc.TLSCert, lc.TLSKey)
if err != nil { if err != nil {
log.Fatalln("can't create tls cert from file:", lc.TLSCert, lc.TLSKey, err) log.Fatalf("can't create tls cert from file: %s, %s, %s\n", lc.TLSCert, lc.TLSKey, err)
} }
return quic.ListenInitialLayers(com.AddrStr(), &tls.Config{ return quic.ListenInitialLayers(com.AddrStr(), tls.Config{
InsecureSkipVerify: lc.Insecure, InsecureSkipVerify: lc.Insecure,
ServerName: lc.Host, ServerName: lc.Host,
Certificates: certArray, Certificates: certArray,
@@ -368,7 +370,7 @@ type ProxyCommonStruct struct {
ws_s *ws.Server ws_s *ws.Server
grpc_s *grpc.Server grpc_s *grpc.Server
FallbackAddr *netLayer.Addr FallbackAddr netLayer.Addr
listenCommonConnFunc func() (newConnChan chan net.Conn, baseConn any) listenCommonConnFunc func() (newConnChan chan net.Conn, baseConn any)
dialCommonConnFunc func(serverAddr *netLayer.Addr) any dialCommonConnFunc func(serverAddr *netLayer.Addr) any
@@ -386,10 +388,10 @@ func (pcs *ProxyCommonStruct) setPath(a string) {
pcs.PATH = a pcs.PATH = a
} }
func (pcs *ProxyCommonStruct) GetFallback() *netLayer.Addr { func (pcs *ProxyCommonStruct) GetFallback() netLayer.Addr {
return pcs.FallbackAddr return pcs.FallbackAddr
} }
func (pcs *ProxyCommonStruct) setFallback(a *netLayer.Addr) { func (pcs *ProxyCommonStruct) setFallback(a netLayer.Addr) {
pcs.FallbackAddr = a pcs.FallbackAddr = a
} }

2
proxy/socks5/client.go
View File

@@ -137,7 +137,7 @@ func Client_ReadUDPResponse(udpConn *net.UDPConn, supposedServerAddr *net.UDPAdd
} }
if !(addr.IP.Equal(supposedServerAddr.IP) && addr.Port == supposedServerAddr.Port) { if !(addr.IP.Equal(supposedServerAddr.IP) && addr.Port == supposedServerAddr.Port) {
e = utils.NewDataErr("socks5 Client_ReadUDPResponse , got data from unknown source", nil, addr) e = utils.ErrInErr{ErrDesc: "socks5 Client_ReadUDPResponse , got data from unknown source", Data: addr}
return return
} }
if buf[0] != 0 || buf[1] != 0 || buf[2] != 0 { if buf[0] != 0 || buf[1] != 0 || buf[2] != 0 {

45
proxy/socks5/server.go
View File

@@ -47,10 +47,11 @@ func (s *Server) Name() string { return Name }
// 参考 https://studygolang.com/articles/31404 // 参考 https://studygolang.com/articles/31404
// 处理tcp收到的请求. 注意, udp associate后的 udp请求并不通过此函数处理, 而是由 UDPConn.StartReadRequest 处理 // 处理tcp收到的请求. 注意, udp associate后的 udp请求并不通过此函数处理, 而是由 UDPConn.StartReadRequest 处理
func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Addr, error) { func (s *Server) Handshake(underlay net.Conn) (result io.ReadWriteCloser, targetAddr netLayer.Addr, returnErr error) {
// Set handshake timeout 4 seconds // Set handshake timeout 4 seconds
if err := underlay.SetReadDeadline(time.Now().Add(time.Second * 4)); err != nil { if err := underlay.SetReadDeadline(time.Now().Add(time.Second * 4)); err != nil {
return nil, nil, err returnErr = err
return
} }
defer underlay.SetReadDeadline(time.Time{}) defer underlay.SetReadDeadline(time.Time{})
@@ -61,24 +62,28 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
// 一般握手包发来的是 [5 1 0] // 一般握手包发来的是 [5 1 0]
n, err := underlay.Read(buf) n, err := underlay.Read(buf)
if err != nil || n == 0 { if err != nil || n == 0 {
return nil, nil, fmt.Errorf("failed to read hello: %w", err) returnErr = fmt.Errorf("failed to read hello: %w", err)
return
} }
version := buf[0] version := buf[0]
if version != Version5 { if version != Version5 {
return nil, nil, fmt.Errorf("unsupported socks version %v", version) returnErr = fmt.Errorf("unsupported socks version %v", version)
return
} }
// Write hello response， [5 0] // Write hello response， [5 0]
// TODO: Support Auth // TODO: Support Auth
_, err = underlay.Write([]byte{Version5, AuthNone}) _, err = underlay.Write([]byte{Version5, AuthNone})
if err != nil { if err != nil {
return nil, nil, fmt.Errorf("failed to write hello response: %w", err) returnErr = fmt.Errorf("failed to write hello response: %w", err)
return
} }
// Read command message， // Read command message，
n, err = underlay.Read(buf) n, err = underlay.Read(buf)
if err != nil || n < 7 { // Shortest length is 7 if err != nil || n < 7 { // Shortest length is 7
return nil, nil, fmt.Errorf("read socks5 failed, msgTooShort: %w", err) returnErr = fmt.Errorf("read socks5 failed, msgTooShort: %w", err)
return
} }
// 一般可以为 5 1 0 3 n，3表示域名，n是域名长度，然后域名很可能是 119 119 119 46 开头，表示 www. // 一般可以为 5 1 0 3 n，3表示域名，n是域名长度，然后域名很可能是 119 119 119 46 开头，表示 www.
@@ -86,7 +91,8 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
cmd := buf[1] cmd := buf[1]
if cmd == CmdBind { if cmd == CmdBind {
return nil, nil, fmt.Errorf("unsuppoted command %v", cmd) returnErr = fmt.Errorf("unsuppoted command %v", cmd)
return
} }
l := 2 l := 2
@@ -104,11 +110,13 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
l += int(buf[4]) l += int(buf[4])
off = 5 off = 5
default: default:
return nil, nil, fmt.Errorf("unknown address type %v", buf[3]) returnErr = fmt.Errorf("unknown address type %v", buf[3])
return
} }
if len(buf[off:]) < l { if len(buf[off:]) < l {
return nil, nil, errors.New("short command request") returnErr = errors.New("short command request")
return
} }
var theName string var theName string
@@ -145,7 +153,8 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
udpRC, err := net.ListenUDP("udp", udpPreparedAddr) udpRC, err := net.ListenUDP("udp", udpPreparedAddr)
if err != nil { if err != nil {
return nil, nil, errors.New("UDPAssociate: unable to listen udp") returnErr = errors.New("UDPAssociate: unable to listen udp")
return
} }
//ver（5）, rep（0，表示成功）, rsv（0）, atyp(1, 即ipv4), BND.ADDR(4字节的ipv4) , BND.PORT(2字节) //ver（5）, rep（0，表示成功）, rsv（0）, atyp(1, 即ipv4), BND.ADDR(4字节的ipv4) , BND.PORT(2字节)
@@ -154,10 +163,11 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
// Write command response // Write command response
_, err = underlay.Write(reply) _, err = underlay.Write(reply)
if err != nil { if err != nil {
return nil, nil, fmt.Errorf("failed to write command response: %w", err) returnErr = fmt.Errorf("failed to write command response: %w", err)
return
} }
clientFutureAddr := &netLayer.Addr{ clientFutureAddr := netLayer.Addr{
IP: theIP, IP: theIP,
Name: theName, Name: theName,
Port: thePort, Port: thePort,
@@ -172,7 +182,7 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
return uc, clientFutureAddr, nil return uc, clientFutureAddr, nil
} else { } else {
addr := &netLayer.Addr{ targetAddr = netLayer.Addr{
IP: theIP, IP: theIP,
Name: theName, Name: theName,
Port: thePort, Port: thePort,
@@ -186,10 +196,11 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
_, err = underlay.Write(reply) _, err = underlay.Write(reply)
if err != nil { if err != nil {
return nil, nil, fmt.Errorf("failed to write command response: %w", err) returnErr = fmt.Errorf("failed to write command response: %w", err)
return
} }
return underlay, addr, nil return underlay, targetAddr, nil
} }
} }
@@ -244,7 +255,7 @@ func (u *UDPConn) StartPushResponse(udpPutter netLayer.UDP_Putter) {
// 然后将该请求 用 udpPutter.WriteUDPRequest 发送给 udpPutter // 然后将该请求 用 udpPutter.WriteUDPRequest 发送给 udpPutter
// 至于fullcone与否它是不管的。 // 至于fullcone与否它是不管的。
// 如果客户端一开始没有指明自己连接本服务端的ip和端口, 则将第一个发来的正确的socks5请求视为该客户端,并记录。 // 如果客户端一开始没有指明自己连接本服务端的ip和端口, 则将第一个发来的正确的socks5请求视为该客户端,并记录。
func (u *UDPConn) StartReadRequest(udpPutter netLayer.UDP_Putter, dialFunc func(targetAddr *netLayer.Addr) (io.ReadWriter, error)) { func (u *UDPConn) StartReadRequest(udpPutter netLayer.UDP_Putter, dialFunc func(targetAddr netLayer.Addr) (io.ReadWriter, error)) {
var clientSupposedAddrIsNothing bool var clientSupposedAddrIsNothing bool
if len(u.clientSupposedAddr.IP) < 3 || u.clientSupposedAddr.IP.IsUnspecified() { if len(u.clientSupposedAddr.IP) < 3 || u.clientSupposedAddr.IP.IsUnspecified() {
@@ -341,7 +352,7 @@ func (u *UDPConn) StartReadRequest(udpPutter netLayer.UDP_Putter, dialFunc func(
//log.Println("socks5 server,StartReadRequest, got msg", thisaddr, string(bs[newStart:n])) //log.Println("socks5 server,StartReadRequest, got msg", thisaddr, string(bs[newStart:n]))
udpPutter.WriteUDPRequest(requestAddr.ToUDPAddr(), bs[newStart:n], dialFunc) udpPutter.WriteUDPRequest(*requestAddr.ToUDPAddr(), bs[newStart:n], dialFunc)
} }
} }

4
proxy/socks5/udp_test.go
View File

@@ -54,7 +54,7 @@ func TestUDP(t *testing.T) {
go udpConn.StartPushResponse(putter) go udpConn.StartPushResponse(putter)
dialFunc := func(targetAddr *netLayer.Addr) (io.ReadWriter, error) { dialFunc := func(targetAddr netLayer.Addr) (io.ReadWriter, error) {
return targetAddr.Dial() return targetAddr.Dial()
} }
@@ -142,7 +142,7 @@ func TestUDP(t *testing.T) {
t.Log("call Client_RequestUDP") t.Log("call Client_RequestUDP")
socks5.Client_RequestUDP(urc, raFake, []byte("hello")) socks5.Client_RequestUDP(urc, &raFake, []byte("hello"))
t.Log("call Client_ReadUDPResponse") t.Log("call Client_ReadUDPResponse")

43
proxy/vless/client.go
View File

@@ -3,7 +3,6 @@ package vless
import ( import (
"bufio" "bufio"
"bytes" "bytes"
"encoding/binary"
"io" "io"
"log" "log"
"net" "net"
@@ -17,14 +16,14 @@ import (
) )
func init() { func init() {
proxy.RegisterClient(Name, &ClientCreator{}) proxy.RegisterClient(Name, ClientCreator{})
} }
//实现 proxy.UserClient，以及 netLayer.UDP_Putter //实现 proxy.UserClient，以及 netLayer.UDP_Putter
type Client struct { type Client struct {
proxy.ProxyCommonStruct proxy.ProxyCommonStruct
udpResponseChan chan *netLayer.UDPAddrData udpResponseChan chan netLayer.UDPAddrData
version int version int
@@ -52,12 +51,12 @@ func (_ ClientCreator) NewClient(dc *proxy.DialConf) (proxy.Client, error) {
return nil, err return nil, err
} }
c := &Client{ c := Client{
user: id, user: id,
} }
c.knownUDPDestinations = make(map[string]io.ReadWriter) c.knownUDPDestinations = make(map[string]io.ReadWriter)
c.udpResponseChan = make(chan *netLayer.UDPAddrData, 20) c.udpResponseChan = make(chan netLayer.UDPAddrData, 20)
v := dc.Version v := dc.Version
if v >= 0 { if v >= 0 {
@@ -68,7 +67,7 @@ func (_ ClientCreator) NewClient(dc *proxy.DialConf) (proxy.Client, error) {
} }
return c, nil return &c, nil
} }
func NewClientByURL(url *url.URL) (proxy.Client, error) { func NewClientByURL(url *url.URL) (proxy.Client, error) {
@@ -78,11 +77,11 @@ func NewClientByURL(url *url.URL) (proxy.Client, error) {
return nil, err return nil, err
} }
c := &Client{ c := Client{
user: id, user: id,
} }
c.knownUDPDestinations = make(map[string]io.ReadWriter) c.knownUDPDestinations = make(map[string]io.ReadWriter)
c.udpResponseChan = make(chan *netLayer.UDPAddrData, 20) c.udpResponseChan = make(chan netLayer.UDPAddrData, 20)
vStr := url.Query().Get("version") vStr := url.Query().Get("version")
if vStr != "" { if vStr != "" {
@@ -94,7 +93,7 @@ func NewClientByURL(url *url.URL) (proxy.Client, error) {
} }
} }
return c, nil return &c, nil
} }
func (c *Client) Name() string { return Name } func (c *Client) Name() string { return Name }
@@ -158,10 +157,10 @@ func (c *Client) Handshake(underlay net.Conn, target *netLayer.Addr) (io.ReadWri
} }
buf := c.getBufWithCmd(cmd) buf := c.getBufWithCmd(cmd)
err = binary.Write(buf, binary.BigEndian, uint16(port)) // port
if err != nil { buf.WriteByte(byte(uint16(port) >> 8))
return nil, err buf.WriteByte(byte(uint16(port) << 8 >> 8))
}
buf.WriteByte(atyp) buf.WriteByte(atyp)
buf.Write(addr) buf.Write(addr)
@@ -178,13 +177,13 @@ func (c *Client) Handshake(underlay net.Conn, target *netLayer.Addr) (io.ReadWri
}, err }, err
} }
func (c *Client) GetNewUDPResponse() (*net.UDPAddr, []byte, error) { func (c *Client) GetNewUDPResponse() (net.UDPAddr, []byte, error) {
x := <-c.udpResponseChan //v1的话，由 handle_CRUMFURS 以及 WriteUDPRequest 中的 goroutine 填充；v0的话，由 WriteUDPRequest 填充 x := <-c.udpResponseChan //v1的话，由 handle_CRUMFURS 以及 WriteUDPRequest 中的 goroutine 填充；v0的话，由 WriteUDPRequest 填充
return x.Addr, x.Data, nil return x.Addr, x.Data, nil
} }
//一般由socks5或者透明代理等地方 获取到 udp请求后，被传入这里 //一般由socks5或者透明代理等地方 获取到 udp请求后，被传入这里
func (c *Client) WriteUDPRequest(a *net.UDPAddr, b []byte, dialFunc func(targetAddr *netLayer.Addr) (io.ReadWriter, error)) (err error) { func (c *Client) WriteUDPRequest(a net.UDPAddr, b []byte, dialFunc func(targetAddr netLayer.Addr) (io.ReadWriter, error)) (err error) {
astr := a.String() astr := a.String()
@@ -194,9 +193,9 @@ func (c *Client) WriteUDPRequest(a *net.UDPAddr, b []byte, dialFunc func(targetA
if knownConn == nil { if knownConn == nil {
knownConn, err = dialFunc(netLayer.NewAddrFromUDPAddr(a)) knownConn, err = dialFunc(netLayer.NewAddrFromUDPAddr(&a))
if err != nil || knownConn == nil { if err != nil || knownConn == nil {
return utils.NewErr("vless WriteUDPRequest, err when creating an underlay", err) return utils.ErrInErr{ErrDesc: "vless WriteUDPRequest, err when creating an underlay", ErrDetail: err}
} }
//这里原来的代码是调用 c.Handshake，会自动帮我们拨号代理节点CmdUDP //这里原来的代码是调用 c.Handshake，会自动帮我们拨号代理节点CmdUDP
// 但是似乎有问题，因为不应该由client自己拨号vless，因为我们还有上层的tls; // 但是似乎有问题，因为不应该由client自己拨号vless，因为我们还有上层的tls;
@@ -221,7 +220,7 @@ func (c *Client) WriteUDPRequest(a *net.UDPAddr, b []byte, dialFunc func(targetA
msg := make([]byte, n) msg := make([]byte, n)
copy(msg, bs[:n]) copy(msg, bs[:n])
c.udpResponseChan <- &netLayer.UDPAddrData{ c.udpResponseChan <- netLayer.UDPAddrData{
Addr: a, Addr: a,
Data: msg, Data: msg,
} }
@@ -283,8 +282,8 @@ func (c *Client) handle_CRUMFURS(UMFURS_conn net.Conn) {
port := int16(msg[portIndex])<<8 + int16(msg[portIndex+1]) port := int16(msg[portIndex])<<8 + int16(msg[portIndex+1])
c.udpResponseChan <- &netLayer.UDPAddrData{ c.udpResponseChan <- netLayer.UDPAddrData{
Addr: &net.UDPAddr{ Addr: net.UDPAddr{
IP: theIP, IP: theIP,
Port: int(port), Port: int(port),
}, },
@@ -339,8 +338,8 @@ func (c *Client) handle_CRUMFURS(UMFURS_conn net.Conn) {
break break
} }
c.udpResponseChan <- &netLayer.UDPAddrData{ c.udpResponseChan <- netLayer.UDPAddrData{
Addr: &net.UDPAddr{ Addr: net.UDPAddr{
IP: theIP, IP: theIP,
Port: port, Port: port,
}, },

60
proxy/vless/server.go
View File

@@ -133,10 +133,11 @@ func (s *Server) GetUserByStr(str string) proxy.User {
func (s *Server) Name() string { return Name } func (s *Server) Name() string { return Name }
// 返回的bytes.Buffer 是用于 回落使用的，内含了整个读取的数据;不回落时不要使用该Buffer // 返回的bytes.Buffer 是用于 回落使用的，内含了整个读取的数据;不回落时不要使用该Buffer
func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Addr, error) { func (s *Server) Handshake(underlay net.Conn) (result io.ReadWriteCloser, targetAddr netLayer.Addr, returnErr error) {
if err := underlay.SetReadDeadline(time.Now().Add(time.Second * 4)); err != nil { if err := underlay.SetReadDeadline(time.Now().Add(time.Second * 4)); err != nil {
return nil, nil, err returnErr = err
return
} }
defer underlay.SetReadDeadline(time.Time{}) defer underlay.SetReadDeadline(time.Time{})
@@ -149,30 +150,30 @@ func (s *Server) Handshake(underlay net.Conn) (io.ReadWriteCloser, *netLayer.Add
//var auth [17]byte //var auth [17]byte
wholeReadLen, err := underlay.Read(readbs) wholeReadLen, err := underlay.Read(readbs)
if err != nil { if err != nil {
return nil, nil, utils.NewDataErr("read err", err, wholeReadLen) returnErr = utils.ErrInErr{ErrDesc: "read err", ErrDetail: err, Data: wholeReadLen}
return
} }
if wholeReadLen < 17 { if wholeReadLen < 17 {
//根据下面回答，HTTP的最小长度恰好是16字节，但是是0.9版本。1.0是18字节，1.1还要更长。总之我们可以直接不返回fallback地址 //根据下面回答，HTTP的最小长度恰好是16字节，但是是0.9版本。1.0是18字节，1.1还要更长。总之我们可以直接不返回fallback地址
//https://stackoverflow.com/questions/25047905/http-request-minimum-size-in-bytes/25065089 //https://stackoverflow.com/questions/25047905/http-request-minimum-size-in-bytes/25065089
return nil, nil, utils.NewDataErr("fallback, msg too short", nil, wholeReadLen) returnErr = utils.ErrInErr{ErrDesc: "fallback, msg too short", Data: wholeReadLen}
return
} }
readbuf := bytes.NewBuffer(readbs[:wholeReadLen]) readbuf := bytes.NewBuffer(readbs[:wholeReadLen])
var returnErr error
goto realPart goto realPart
errorPart: errorPart:
//所返回的buffer必须包含所有数据，而Buffer不支持回退，所以只能重新New //所返回的buffer必须包含所有数据，而Buffer不支持回退，所以只能重新New
return nil, nil, &utils.ErrFirstBuffer{ returnErr = &utils.ErrFirstBuffer{
Err: returnErr, Err: returnErr,
First: bytes.NewBuffer(readbs[:wholeReadLen]), First: bytes.NewBuffer(readbs[:wholeReadLen]),
} }
return
realPart: realPart:
//这部分过程可以参照 v2ray的 proxy/vless/encoding/encoding.go DecodeRequestHeader 方法 //这部分过程可以参照 v2ray的 proxy/vless/encoding/encoding.go DecodeRequestHeader 方法
@@ -183,7 +184,7 @@ realPart:
version := auth[0] version := auth[0]
if version > 1 { if version > 1 {
returnErr = utils.NewDataErr("Vless invalid version ", nil, version) returnErr = utils.ErrInErr{ErrDesc: "Vless invalid version ", Data: version}
goto errorPart goto errorPart
} }
@@ -206,7 +207,8 @@ realPart:
addonLenByte, err := readbuf.ReadByte() addonLenByte, err := readbuf.ReadByte()
if err != nil { if err != nil {
return nil, nil, err //凡是和的层Read相关的错误，一律不再返回Fallback信息，因为连接已然不可用 returnErr = err //凡是和的层Read相关的错误，一律不再返回Fallback信息，因为连接已然不可用
return
} }
if addonLenByte != 0 { if addonLenByte != 0 {
//v2ray的vless中没有对应的任何处理。 //v2ray的vless中没有对应的任何处理。
@@ -223,7 +225,8 @@ realPart:
utils.PutBytes(tmpBuf) utils.PutBytes(tmpBuf)
*/ */
if tmpbs := readbuf.Next(int(addonLenByte)); len(tmpbs) != int(addonLenByte) { if tmpbs := readbuf.Next(int(addonLenByte)); len(tmpbs) != int(addonLenByte) {
return nil, nil, errors.New("vless short read in addon") returnErr = errors.New("vless short read in addon")
return
} }
} }
} }
@@ -236,13 +239,11 @@ realPart:
goto errorPart goto errorPart
} }
addr := &netLayer.Addr{}
switch commandByte { switch commandByte {
case CmdMux: //实际目前verysimple 暂时还未实现mux，先这么写 case CmdMux: //实际目前verysimple 暂时还未实现mux，先这么写
addr.Port = 0 targetAddr.Port = 0
addr.Name = "v1.mux.cool" targetAddr.Name = "v1.mux.cool"
case Cmd_CRUMFURS: case Cmd_CRUMFURS:
if version != 1 { if version != 1 {
@@ -255,11 +256,11 @@ realPart:
_, err = underlay.Write([]byte{CRUMFURS_ESTABLISHED}) _, err = underlay.Write([]byte{CRUMFURS_ESTABLISHED})
if err != nil { if err != nil {
returnErr = utils.NewErr("write to crumfurs err", err) returnErr = utils.ErrInErr{ErrDesc: "write to crumfurs err", ErrDetail: err}
goto errorPart goto errorPart
} }
addr.Name = CRUMFURS_Established_Str // 使用这个特殊的办法来告诉调用者，预留了 CRUMFURS 信道，防止其关闭上层连接导致 CRUMFURS 信道 被关闭。 targetAddr.Name = CRUMFURS_Established_Str // 使用这个特殊的办法来告诉调用者，预留了 CRUMFURS 信道，防止其关闭上层连接导致 CRUMFURS 信道 被关闭。
theCRUMFURS := &CRUMFURS{ theCRUMFURS := &CRUMFURS{
Conn: underlay, Conn: underlay,
@@ -271,7 +272,7 @@ realPart:
s.mux4Hashes.Unlock() s.mux4Hashes.Unlock()
return nil, addr, nil return
case CmdTCP, CmdUDP: case CmdTCP, CmdUDP:
@@ -283,10 +284,10 @@ realPart:
goto errorPart goto errorPart
} }
addr.Port = int(binary.BigEndian.Uint16(portbs)) targetAddr.Port = int(binary.BigEndian.Uint16(portbs))
if commandByte == CmdUDP { if commandByte == CmdUDP {
addr.Network = "udp" targetAddr.Network = "udp"
} }
var ip_or_domain_bytesLength byte = 0 var ip_or_domain_bytesLength byte = 0
@@ -303,7 +304,7 @@ realPart:
case netLayer.AtypIP4: case netLayer.AtypIP4:
ip_or_domain_bytesLength = net.IPv4len ip_or_domain_bytesLength = net.IPv4len
addr.IP = utils.GetBytes(net.IPv4len) targetAddr.IP = utils.GetBytes(net.IPv4len)
case netLayer.AtypDomain: case netLayer.AtypDomain:
// 解码域名的长度 // 解码域名的长度
@@ -320,7 +321,7 @@ realPart:
case netLayer.AtypIP6: case netLayer.AtypIP6:
ip_or_domain_bytesLength = net.IPv6len ip_or_domain_bytesLength = net.IPv6len
addr.IP = utils.GetBytes(net.IPv6len) targetAddr.IP = utils.GetBytes(net.IPv6len)
default: default:
returnErr = fmt.Errorf("unknown address type %v", addrTypeByte) returnErr = fmt.Errorf("unknown address type %v", addrTypeByte)
@@ -332,13 +333,14 @@ realPart:
_, err = readbuf.Read(ip_or_domain) _, err = readbuf.Read(ip_or_domain)
if err != nil { if err != nil {
return nil, nil, errors.New("fallback, reason 6") returnErr = errors.New("fallback, reason 6")
return
} }
if addr.IP != nil { if targetAddr.IP != nil {
copy(addr.IP, ip_or_domain) copy(targetAddr.IP, ip_or_domain)
} else { } else {
addr.Name = string(ip_or_domain) targetAddr.Name = string(ip_or_domain)
} }
utils.PutBytes(ip_or_domain) utils.PutBytes(ip_or_domain)
@@ -355,10 +357,10 @@ realPart:
remainFirstBufLen: readbuf.Len(), remainFirstBufLen: readbuf.Len(),
uuid: thisUUIDBytes, uuid: thisUUIDBytes,
version: int(version), version: int(version),
isUDP: addr.IsUDP(), isUDP: targetAddr.IsUDP(),
underlayIsBasic: netLayer.IsBasicConn(underlay), underlayIsBasic: netLayer.IsBasicConn(underlay),
isServerEnd: true, isServerEnd: true,
}, addr, nil }, targetAddr, nil
} }
@@ -375,7 +377,7 @@ type CRUMFURS struct {
hasAdvancedLayer bool //在用ws或grpc时，这个开关保持打开 hasAdvancedLayer bool //在用ws或grpc时，这个开关保持打开
} }
func (c *CRUMFURS) WriteUDPResponse(a *net.UDPAddr, b []byte) (err error) { func (c *CRUMFURS) WriteUDPResponse(a net.UDPAddr, b []byte) (err error) {
atype := netLayer.AtypIP4 atype := netLayer.AtypIP4
if len(a.IP) > 4 { if len(a.IP) > 4 {
atype = netLayer.AtypIP6 atype = netLayer.AtypIP6

20
proxy/vless/vless_test.go
View File

@@ -24,13 +24,13 @@ func TestVLess1(t *testing.T) {
func testVLess(version int, port string, t *testing.T) { func testVLess(version int, port string, t *testing.T) {
url := "vless://a684455c-b14f-11ea-bf0d-42010aaa0003@127.0.0.1:" + port + "?version=" + strconv.Itoa(version) url := "vless://a684455c-b14f-11ea-bf0d-42010aaa0003@127.0.0.1:" + port + "?version=" + strconv.Itoa(version)
server, err := proxy.ServerFromURL(url) server, hase, _ := proxy.ServerFromURL(url)
if err != nil { if hase {
t.FailNow() t.FailNow()
} }
defer server.Stop() defer server.Stop()
client, err := proxy.ClientFromURL(url) client, hase, _ := proxy.ClientFromURL(url)
if err != nil { if hase {
t.FailNow() t.FailNow()
} }
@@ -127,15 +127,15 @@ func TestVLess0_udp(t *testing.T) {
// 不过实测，这个test暂时只能使用v0版本，因为 v1版本具有 独特信道，不能直接使用下面代码。 // 不过实测，这个test暂时只能使用v0版本，因为 v1版本具有 独特信道，不能直接使用下面代码。
func testVLessUDP(version int, port string, t *testing.T) { func testVLessUDP(version int, port string, t *testing.T) {
url := "vless://a684455c-b14f-11ea-bf0d-42010aaa0003@127.0.0.1:" + port + "?version=" + strconv.Itoa(version) url := "vless://a684455c-b14f-11ea-bf0d-42010aaa0003@127.0.0.1:" + port + "?version=" + strconv.Itoa(version)
fakeServerEndLocalServer, err := proxy.ServerFromURL(url) fakeServerEndLocalServer, hase, errx := proxy.ServerFromURL(url)
if err != nil { if hase {
t.Log("fakeClientEndLocalServer parse err", err) t.Log("fakeClientEndLocalServer parse err", errx)
t.FailNow() t.FailNow()
} }
defer fakeServerEndLocalServer.Stop() defer fakeServerEndLocalServer.Stop()
fakeClientEndRemoteClient, err := proxy.ClientFromURL(url) fakeClientEndRemoteClient, hase, errx := proxy.ClientFromURL(url)
if err != nil { if hase {
t.Log("fakeClientEndRemoteClient parse err", err) t.Log("fakeClientEndRemoteClient parse err", errx)
t.FailNow() t.FailNow()
} }

8
quic/quic.go
View File

@@ -76,9 +76,9 @@ var (
} }
) )
func ListenInitialLayers(addr string, tlsConf *tls.Config, useHysteria bool, hysteriaMaxByteCount int) (newConnChan chan net.Conn, baseConn any) { func ListenInitialLayers(addr string, tlsConf tls.Config, useHysteria bool, hysteriaMaxByteCount int) (newConnChan chan net.Conn, baseConn any) {
listener, err := quic.ListenAddr(addr, tlsConf, &our_ListenConfig) listener, err := quic.ListenAddr(addr, &tlsConf, &our_ListenConfig)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println(err) log.Println(err)
@@ -140,8 +140,8 @@ func ListenInitialLayers(addr string, tlsConf *tls.Config, useHysteria bool, hys
return return
} }
func DialCommonInitialLayer(serverAddr *netLayer.Addr, tlsConf *tls.Config, useHysteria bool, hysteriaMaxByteCount int) any { func DialCommonInitialLayer(serverAddr *netLayer.Addr, tlsConf tls.Config, useHysteria bool, hysteriaMaxByteCount int) any {
session, err := quic.DialAddr(serverAddr.String(), tlsConf, &our_DialConfig) session, err := quic.DialAddr(serverAddr.String(), &tlsConf, &our_DialConfig)
if err != nil { if err != nil {
if utils.CanLogErr() { if utils.CanLogErr() {
log.Println(err) log.Println(err)

2
tlsLayer/server.go
View File

@@ -37,7 +37,7 @@ func (s *Server) Handshake(underlay net.Conn) (tlsConn *Conn, err error) {
rawTlsConn := tls.Server(underlay, s.tlsConfig) rawTlsConn := tls.Server(underlay, s.tlsConfig)
err = rawTlsConn.Handshake() err = rawTlsConn.Handshake()
if err != nil { if err != nil {
err = utils.NewErr("tlsLayer: tls握手失败", err) err = utils.ErrInErr{ErrDesc: "tlsLayer: tls握手失败", ErrDetail: err}
return return
} }

12
tlsLayer/tls_test.go
View File

@@ -27,15 +27,15 @@ func testTls(protocol string, port string, t *testing.T) {
} }
url := protocol + "://a684455c-b14f-11ea-bf0d-42010aaa0003@localhost:" + port + "?alterID=4&cert=../cert.pem&key=../cert.key&insecure=1" url := protocol + "://a684455c-b14f-11ea-bf0d-42010aaa0003@localhost:" + port + "?alterID=4&cert=../cert.pem&key=../cert.key&insecure=1"
server, err := proxy.ServerFromURL(url) server, hase, errx := proxy.ServerFromURL(url)
if err != nil { if hase {
t.Log("fail1", err) t.Log("fail1", errx)
t.FailNow() t.FailNow()
} }
defer server.Stop() defer server.Stop()
client, err := proxy.ClientFromURL(url) client, hase, errx := proxy.ClientFromURL(url)
if err != nil { if hase {
t.Log("fail2", err) t.Log("fail2", errx)
t.FailNow() t.FailNow()
} }

2
utils/buffers.go
View File

@@ -136,6 +136,8 @@ func MergeBuffers(bs [][]byte) (result []byte, duplicate bool) {
} else { } else {
result = make([]byte, allLen) //实际目前的readv实现也很难出现这种情况 result = make([]byte, allLen) //实际目前的readv实现也很难出现这种情况
// 一定要尽量避免这种情况，如果 MaxBufLen小于readv buf总长度，会导致严重的内存泄漏问题,
// 见github issue #24
} }
cursor := 0 cursor := 0

5
utils/error.go
View File

@@ -34,7 +34,8 @@ func (ef ErrFirstBuffer) Error() string {
} }
// 返回结构体，而不是指针, 这样可以避免内存逃逸到堆 // 返回结构体，而不是指针, 这样可以避免内存逃逸到堆
func NewErr(desc string, e error) ErrInErr { // 发现只要是函数就会逃逸到堆，自己初始化就没事。那就不提供初始化函数了。
/*func NewErr(desc string, e error) ErrInErr {
return ErrInErr{ return ErrInErr{
ErrDesc: desc, ErrDesc: desc,
ErrDetail: e, ErrDetail: e,
@@ -42,6 +43,7 @@ func NewErr(desc string, e error) ErrInErr {
} }
// 返回结构体，而不是指针, 这样可以避免内存逃逸到堆 // 返回结构体，而不是指针, 这样可以避免内存逃逸到堆
func NewDataErr(desc string, e error, data interface{}) ErrInErr { func NewDataErr(desc string, e error, data interface{}) ErrInErr {
return ErrInErr{ return ErrInErr{
ErrDesc: desc, ErrDesc: desc,
@@ -49,6 +51,7 @@ func NewDataErr(desc string, e error, data interface{}) ErrInErr {
Data: data, Data: data,
} }
} }
*/
// ErrInErr 很适合一个err包含另一个err，并且提供附带数据的情况. // ErrInErr 很适合一个err包含另一个err，并且提供附带数据的情况.
type ErrInErr struct { type ErrInErr struct {

6
version.go
View File

@@ -50,10 +50,10 @@ var Version string //版本号由 Makefile 里的 BUILD_VERSION 指定
func printVersion() { func printVersion() {
const desc = "verysimple, a very simple implementation of V2Ray with some innovation" const desc = "verysimple, a very simple implementation of V2Ray with some innovation"
fmt.Printf("===============================\nverysimple %v (%v), %v %v %v\n", Version, desc, runtime.Version(), runtime.GOOS, runtime.GOARCH) fmt.Printf("===============================\nverysimple %s (%s), %s %s %s\n", Version, desc, runtime.Version(), runtime.GOOS, runtime.GOARCH)
fmt.Println("Support tls and websocket for all protocols.") fmt.Printf("Support tls and websocket for all protocols.\n")
if netLayer.HasEmbedGeoip() { if netLayer.HasEmbedGeoip() {
fmt.Println("Contains embeded Geoip file") fmt.Printf("Contains embeded Geoip file\n")
} }
} }

2
ws/client.go
View File

@@ -137,7 +137,7 @@ func (edc *EarlyDataConn) Write(p []byte) (int, error) {
_, encerr := io.Copy(encoder, multiReader) _, encerr := io.Copy(encoder, multiReader)
if encerr != nil { if encerr != nil {
close(edc.firstHandshakeOkChan) close(edc.firstHandshakeOkChan)
return 0, utils.NewErr("encode early data err", encerr) return 0, utils.ErrInErr{ErrDesc: "encode early data err", ErrDetail: encerr}
} }
encoder.Close() encoder.Close()

2
ws/conn.go
View File

@@ -89,7 +89,7 @@ func (c *Conn) Read(p []byte) (int, error) {
*/ */
//log.Println("OpCode not Binary", h.OpCode) //log.Println("OpCode not Binary", h.OpCode)
return 0, utils.NewDataErr("ws OpCode not Binary", nil, h.OpCode) return 0, utils.ErrInErr{ErrDesc: "ws OpCode not Binary", Data: h.OpCode}
} }
//log.Println("Read next frame header ok,", h.Length, c.r.State.Fragmented(), "givenbuf len", len(p)) //log.Println("Read next frame header ok,", h.Length, c.r.State.Fragmented(), "givenbuf len", len(p))