mirror of
https://github.com/MetaCubeX/mihomo.git
synced 2025-12-23 19:30:09 +08:00
parent
adf553a958
commit
e6fe895190
@ -41,14 +41,14 @@ type ClientInstance struct {
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minutes time.Duration
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minutes time.Duration
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expire time.Time
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expire time.Time
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baseKey []byte
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baseKey []byte
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reuse []byte
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ticket []byte
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}
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}
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type ClientConn struct {
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type ClientConn struct {
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net.Conn
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net.Conn
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instance *ClientInstance
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instance *ClientInstance
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baseKey []byte
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baseKey []byte
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reuse []byte
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ticket []byte
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random []byte
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random []byte
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aead cipher.AEAD
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aead cipher.AEAD
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nonce []byte
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nonce []byte
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@ -74,7 +74,7 @@ func (i *ClientInstance) Handshake(conn net.Conn) (net.Conn, error) {
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if time.Now().Before(i.expire) {
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if time.Now().Before(i.expire) {
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c.instance = i
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c.instance = i
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c.baseKey = i.baseKey
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c.baseKey = i.baseKey
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c.reuse = i.reuse
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c.ticket = i.ticket
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i.RUnlock()
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i.RUnlock()
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return c, nil
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return c, nil
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}
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}
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@ -104,7 +104,7 @@ func (i *ClientInstance) Handshake(conn net.Conn) (net.Conn, error) {
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return nil, err
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return nil, err
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}
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}
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encapsulatedPfsKey := peerServerHello[:1088]
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encapsulatedPfsKey := peerServerHello[:1088]
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c.reuse = peerServerHello[1088:]
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c.ticket = peerServerHello[1088:]
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pfsKey, err := dKeyPfs.Decapsulate(encapsulatedPfsKey)
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pfsKey, err := dKeyPfs.Decapsulate(encapsulatedPfsKey)
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if err != nil {
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if err != nil {
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@ -115,7 +115,7 @@ func (i *ClientInstance) Handshake(conn net.Conn) (net.Conn, error) {
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authKey := make([]byte, 32)
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authKey := make([]byte, 32)
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hkdf.New(sha256.New, c.baseKey, encapsulatedNfsKey, eKeyPfs).Read(authKey)
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hkdf.New(sha256.New, c.baseKey, encapsulatedNfsKey, eKeyPfs).Read(authKey)
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nonce := make([]byte, 12)
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nonce := make([]byte, 12)
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VLESS, _ := newAead(ClientCipher, authKey).Open(nil, nonce, c.reuse, encapsulatedPfsKey)
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VLESS, _ := newAead(ClientCipher, authKey).Open(nil, nonce, c.ticket, encapsulatedPfsKey)
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if !bytes.Equal(VLESS, []byte("VLESS")) { // TODO: more message
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if !bytes.Equal(VLESS, []byte("VLESS")) { // TODO: more message
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return nil, errors.New("invalid server")
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return nil, errors.New("invalid server")
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}
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}
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@ -124,7 +124,7 @@ func (i *ClientInstance) Handshake(conn net.Conn) (net.Conn, error) {
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i.Lock()
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i.Lock()
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i.expire = time.Now().Add(i.minutes)
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i.expire = time.Now().Add(i.minutes)
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i.baseKey = c.baseKey
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i.baseKey = c.baseKey
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i.reuse = c.reuse
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i.ticket = c.ticket
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i.Unlock()
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i.Unlock()
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}
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}
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@ -140,12 +140,12 @@ func (c *ClientConn) Write(b []byte) (int, error) {
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c.random = make([]byte, 32)
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c.random = make([]byte, 32)
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rand.Read(c.random)
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rand.Read(c.random)
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key := make([]byte, 32)
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key := make([]byte, 32)
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hkdf.New(sha256.New, c.baseKey, c.random, c.reuse).Read(key)
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hkdf.New(sha256.New, c.baseKey, c.random, c.ticket).Read(key)
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c.aead = newAead(ClientCipher, key)
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c.aead = newAead(ClientCipher, key)
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c.nonce = make([]byte, 12)
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c.nonce = make([]byte, 12)
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data = make([]byte, 21+32+5+len(b)+16)
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data = make([]byte, 21+32+5+len(b)+16)
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copy(data, c.reuse)
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copy(data, c.ticket)
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copy(data[21:], c.random)
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copy(data[21:], c.random)
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encodeHeader(data[53:], len(b)+16)
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encodeHeader(data[53:], len(b)+16)
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c.aead.Seal(data[:58], c.nonce, b, data[53:58])
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c.aead.Seal(data[:58], c.nonce, b, data[53:58])
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@ -210,7 +210,7 @@ func (c *ClientConn) Read(b []byte) (int, error) { // after first Write()
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if err != nil {
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if err != nil {
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if c.instance != nil {
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if c.instance != nil {
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c.instance.Lock()
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c.instance.Lock()
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if bytes.Equal(c.reuse, c.instance.reuse) {
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if bytes.Equal(c.ticket, c.instance.ticket) {
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c.instance.expire = time.Now() // expired
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c.instance.expire = time.Now() // expired
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}
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}
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c.instance.Unlock()
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c.instance.Unlock()
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@ -34,7 +34,7 @@ type ServerConn struct {
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net.Conn
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net.Conn
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cipher byte
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cipher byte
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baseKey []byte
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baseKey []byte
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reuse []byte
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ticket []byte
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peerRandom []byte
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peerRandom []byte
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peerAead cipher.AEAD
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peerAead cipher.AEAD
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peerNonce []byte
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peerNonce []byte
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@ -81,20 +81,20 @@ func (i *ServerInstance) Handshake(conn net.Conn) (net.Conn, error) {
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}
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}
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c := &ServerConn{Conn: conn}
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c := &ServerConn{Conn: conn}
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peerReuseHello := make([]byte, 21+32)
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peerTicketHello := make([]byte, 21+32)
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if _, err := io.ReadFull(c.Conn, peerReuseHello); err != nil {
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if _, err := io.ReadFull(c.Conn, peerTicketHello); err != nil {
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return nil, err
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return nil, err
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}
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}
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if i.minutes > 0 {
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if i.minutes > 0 {
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i.RLock()
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i.RLock()
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s := i.sessions[[21]byte(peerReuseHello)]
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s := i.sessions[[21]byte(peerTicketHello)]
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i.RUnlock()
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i.RUnlock()
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if s != nil {
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if s != nil {
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if _, replay := s.randoms.LoadOrStore([32]byte(peerReuseHello[21:]), true); !replay {
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if _, replay := s.randoms.LoadOrStore([32]byte(peerTicketHello[21:]), true); !replay {
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c.cipher = s.cipher
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c.cipher = s.cipher
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c.baseKey = s.baseKey
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c.baseKey = s.baseKey
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c.reuse = peerReuseHello[:21]
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c.ticket = peerTicketHello[:21]
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c.peerRandom = peerReuseHello[21:]
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c.peerRandom = peerTicketHello[21:]
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return c, nil
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return c, nil
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}
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}
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}
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}
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@ -106,11 +106,11 @@ func (i *ServerInstance) Handshake(conn net.Conn) (net.Conn, error) {
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}
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}
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if l, _ := decodeHeader(peerHeader); l != 0 {
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if l, _ := decodeHeader(peerHeader); l != 0 {
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c.Conn.Write(make([]byte, randBetween(100, 1000))) // make client do new handshake
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c.Conn.Write(make([]byte, randBetween(100, 1000))) // make client do new handshake
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return nil, errors.New("invalid reuse")
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return nil, errors.New("invalid ticket")
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}
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}
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peerClientHello := make([]byte, 1088+1184+1)
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peerClientHello := make([]byte, 1088+1184+1)
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copy(peerClientHello, peerReuseHello)
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copy(peerClientHello, peerTicketHello)
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copy(peerClientHello[53:], peerHeader)
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copy(peerClientHello[53:], peerHeader)
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if _, err := io.ReadFull(c.Conn, peerClientHello[58:]); err != nil {
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if _, err := io.ReadFull(c.Conn, peerClientHello[58:]); err != nil {
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return nil, err
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return nil, err
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@ -136,13 +136,13 @@ func (i *ServerInstance) Handshake(conn net.Conn) (net.Conn, error) {
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authKey := make([]byte, 32)
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authKey := make([]byte, 32)
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hkdf.New(sha256.New, c.baseKey, encapsulatedNfsKey, eKeyPfsData).Read(authKey)
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hkdf.New(sha256.New, c.baseKey, encapsulatedNfsKey, eKeyPfsData).Read(authKey)
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nonce := make([]byte, 12)
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nonce := make([]byte, 12)
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c.reuse = newAead(c.cipher, authKey).Seal(nil, nonce, []byte("VLESS"), encapsulatedPfsKey)
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c.ticket = newAead(c.cipher, authKey).Seal(nil, nonce, []byte("VLESS"), encapsulatedPfsKey)
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padding := randBetween(100, 1000)
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padding := randBetween(100, 1000)
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serverHello := make([]byte, 1088+21+5+padding)
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serverHello := make([]byte, 1088+21+5+padding)
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copy(serverHello, encapsulatedPfsKey)
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copy(serverHello, encapsulatedPfsKey)
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copy(serverHello[1088:], c.reuse)
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copy(serverHello[1088:], c.ticket)
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encodeHeader(serverHello[1109:], int(padding))
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encodeHeader(serverHello[1109:], int(padding))
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if _, err := c.Conn.Write(serverHello); err != nil {
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if _, err := c.Conn.Write(serverHello); err != nil {
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@ -151,7 +151,7 @@ func (i *ServerInstance) Handshake(conn net.Conn) (net.Conn, error) {
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if i.minutes > 0 {
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if i.minutes > 0 {
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i.Lock()
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i.Lock()
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i.sessions[[21]byte(c.reuse)] = &ServerSession{
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i.sessions[[21]byte(c.ticket)] = &ServerSession{
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expire: time.Now().Add(i.minutes),
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expire: time.Now().Add(i.minutes),
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cipher: c.cipher,
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cipher: c.cipher,
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baseKey: c.baseKey,
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baseKey: c.baseKey,
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@ -181,12 +181,12 @@ func (c *ServerConn) Read(b []byte) (int, error) {
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return 0, err
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return 0, err
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}
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}
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}
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}
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peerIndex := make([]byte, 21)
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peerTicket := make([]byte, 21)
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copy(peerIndex, peerHeader)
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copy(peerTicket, peerHeader)
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if _, err := io.ReadFull(c.Conn, peerIndex[5:]); err != nil {
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if _, err := io.ReadFull(c.Conn, peerTicket[5:]); err != nil {
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return 0, err
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return 0, err
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}
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}
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if !bytes.Equal(peerIndex, c.reuse) {
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if !bytes.Equal(peerTicket, c.ticket) {
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return 0, errors.New("naughty boy")
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return 0, errors.New("naughty boy")
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}
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}
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c.peerRandom = make([]byte, 32)
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c.peerRandom = make([]byte, 32)
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@ -195,7 +195,7 @@ func (c *ServerConn) Read(b []byte) (int, error) {
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}
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}
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}
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}
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peerKey := make([]byte, 32)
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peerKey := make([]byte, 32)
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hkdf.New(sha256.New, c.baseKey, c.peerRandom, c.reuse).Read(peerKey)
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hkdf.New(sha256.New, c.baseKey, c.peerRandom, c.ticket).Read(peerKey)
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c.peerAead = newAead(c.cipher, peerKey)
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c.peerAead = newAead(c.cipher, peerKey)
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c.peerNonce = make([]byte, 12)
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c.peerNonce = make([]byte, 12)
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}
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}
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