Пример #1
0
func (this *SwitchAccount) Unmarshal(data []byte) error {
	lenHost := int(data[0])
	if len(data) < lenHost+1 {
		return transport.CorruptedPacket
	}
	this.Host = v2net.ParseAddress(string(data[1 : 1+lenHost]))
	portStart := 1 + lenHost
	if len(data) < portStart+2 {
		return transport.CorruptedPacket
	}
	this.Port = v2net.PortFromBytes(data[portStart : portStart+2])
	idStart := portStart + 2
	if len(data) < idStart+16 {
		return transport.CorruptedPacket
	}
	this.ID, _ = uuid.ParseBytes(data[idStart : idStart+16])
	alterIdStart := idStart + 16
	if len(data) < alterIdStart+2 {
		return transport.CorruptedPacket
	}
	this.AlterIds = serial.ParseUint16(data[alterIdStart : alterIdStart+2])
	levelStart := alterIdStart + 2
	if len(data) < levelStart {
		return transport.CorruptedPacket
	}
	this.Level = vmess.UserLevel(data[levelStart])
	timeStart := levelStart + 1
	if len(data) < timeStart {
		return transport.CorruptedPacket
	}
	this.ValidMin = data[timeStart]
	return nil
}
Пример #2
0
func (this *SwitchAccount) Unmarshal(data []byte) error {
	lenHost := int(data[0])
	if len(data) < lenHost+1 {
		return transport.CorruptedPacket
	}
	this.Host = v2net.ParseAddress(string(data[1 : 1+lenHost]))
	portStart := 1 + lenHost
	if len(data) < portStart+2 {
		return transport.CorruptedPacket
	}
	this.Port = v2net.PortFromBytes(data[portStart : portStart+2])
	idStart := portStart + 2
	if len(data) < idStart+16 {
		return transport.CorruptedPacket
	}
	this.ID, _ = uuid.ParseBytes(data[idStart : idStart+16])
	alterIdStart := idStart + 16
	if len(data) < alterIdStart+2 {
		return transport.CorruptedPacket
	}
	this.AlterIds = serial.ParseUint16(data[alterIdStart : alterIdStart+2])
	timeStart := alterIdStart + 2
	if len(data) < timeStart+8 {
		return transport.CorruptedPacket
	}
	this.ValidUntil = time.Unix(serial.BytesLiteral(data[timeStart:timeStart+8]).Int64Value(), 0)
	return nil
}
Пример #3
0
func (request *Socks5Request) Destination() v2net.Destination {
	switch request.AddrType {
	case AddrTypeIPv4:
		return v2net.TCPDestination(v2net.IPAddress(request.IPv4[:]), request.Port)
	case AddrTypeIPv6:
		return v2net.TCPDestination(v2net.IPAddress(request.IPv6[:]), request.Port)
	case AddrTypeDomain:
		return v2net.TCPDestination(v2net.ParseAddress(request.Domain), request.Port)
	default:
		panic("Unknown address type")
	}
}
Пример #4
0
func ReadUDPRequest(packet []byte) (*Socks5UDPRequest, error) {
	if len(packet) < 5 {
		return nil, transport.ErrorCorruptedPacket
	}
	request := new(Socks5UDPRequest)

	// packet[0] and packet[1] are reserved
	request.Fragment = packet[2]

	addrType := packet[3]
	var dataBegin int

	switch addrType {
	case AddrTypeIPv4:
		if len(packet) < 10 {
			return nil, transport.ErrorCorruptedPacket
		}
		ip := packet[4:8]
		request.Port = v2net.PortFromBytes(packet[8:10])
		request.Address = v2net.IPAddress(ip)
		dataBegin = 10
	case AddrTypeIPv6:
		if len(packet) < 22 {
			return nil, transport.ErrorCorruptedPacket
		}
		ip := packet[4:20]
		request.Port = v2net.PortFromBytes(packet[20:22])
		request.Address = v2net.IPAddress(ip)
		dataBegin = 22
	case AddrTypeDomain:
		domainLength := int(packet[4])
		if len(packet) < 5+domainLength+2 {
			return nil, transport.ErrorCorruptedPacket
		}
		domain := string(packet[5 : 5+domainLength])
		request.Port = v2net.PortFromBytes(packet[5+domainLength : 5+domainLength+2])
		request.Address = v2net.ParseAddress(domain)
		dataBegin = 5 + domainLength + 2
	default:
		log.Warning("Unknown address type ", addrType)
		return nil, ErrorUnknownAddressType
	}

	if len(packet) > dataBegin {
		request.Data = alloc.NewBuffer().Clear().Append(packet[dataBegin:])
	}

	return request, nil
}
Пример #5
0
func (this *CommandSwitchAccountFactory) Unmarshal(data []byte) (interface{}, error) {
	cmd := new(protocol.CommandSwitchAccount)
	if len(data) == 0 {
		return nil, transport.ErrCorruptedPacket
	}
	lenHost := int(data[0])
	if len(data) < lenHost+1 {
		return nil, transport.ErrCorruptedPacket
	}
	if lenHost > 0 {
		cmd.Host = v2net.ParseAddress(string(data[1 : 1+lenHost]))
	}
	portStart := 1 + lenHost
	if len(data) < portStart+2 {
		return nil, transport.ErrCorruptedPacket
	}
	cmd.Port = v2net.PortFromBytes(data[portStart : portStart+2])
	idStart := portStart + 2
	if len(data) < idStart+16 {
		return nil, transport.ErrCorruptedPacket
	}
	cmd.ID, _ = uuid.ParseBytes(data[idStart : idStart+16])
	alterIdStart := idStart + 16
	if len(data) < alterIdStart+2 {
		return nil, transport.ErrCorruptedPacket
	}
	cmd.AlterIds = serial.BytesToUint16(data[alterIdStart : alterIdStart+2])
	levelStart := alterIdStart + 2
	if len(data) < levelStart+1 {
		return nil, transport.ErrCorruptedPacket
	}
	cmd.Level = protocol.UserLevel(data[levelStart])
	timeStart := levelStart + 1
	if len(data) < timeStart {
		return nil, transport.ErrCorruptedPacket
	}
	cmd.ValidMin = data[timeStart]
	return cmd, nil
}