feat: v2.1.0 核心重构与功能增强

## 架构重构
- 全局变量消除,迁移至 Config/State 对象
- SMB 插件融合(smb/smb2/smbghost/smbinfo)
- 服务探测重构,实现 Nmap 风格 fallback 机制
- 输出系统重构,TXT 实时刷盘 + 双写机制
- i18n 框架升级至 go-i18n

## 性能优化
- 正则表达式预编译
- 内存优化 map[string]struct{}
- 并发指纹匹配
- SOCKS5 连接复用
- 滑动窗口调度 + 自适应线程池

## 新功能
- Web 管理界面
- 多格式 POC 适配(xray/afrog)
- 增强指纹库(3139条)
- Favicon hash 指纹识别
- 插件选择性编译(Build Tags)
- fscan-lab 靶场环境
- 默认端口扩展(62→133)

## 构建系统
- 添加 no_local tag 支持排除本地插件
- 多版本构建:fscan/fscan-nolocal/fscan-web
- CI 添加 snapshot 模式支持仅测试构建

## Bug 修复
- 修复 120+ 个问题,包括 RDP panic、批量扫描漏报、
  JSON 输出格式、Redis 检测、Context 超时等

## 测试增强
- 单元测试覆盖率 74-100%
- 并发安全测试
- 集成测试(Web/端口/服务/SSH/ICMP)
This commit is contained in:
ZacharyZcR
2026-01-11 20:16:23 +08:00
parent 6b13b2e84f
commit 71b92d4408
948 changed files with 92335 additions and 24630 deletions
+183
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package lic
import (
"io"
"github.com/shadow1ng/fscan/mylib/grdp/core"
)
const (
LICENSE_REQUEST = 0x01
PLATFORM_CHALLENGE = 0x02
NEW_LICENSE = 0x03
UPGRADE_LICENSE = 0x04
LICENSE_INFO = 0x12
NEW_LICENSE_REQUEST = 0x13
PLATFORM_CHALLENGE_RESPONSE = 0x15
ERROR_ALERT = 0xFF
)
// error code
const (
ERR_INVALID_SERVER_CERTIFICATE = 0x00000001
ERR_NO_LICENSE = 0x00000002
ERR_INVALID_SCOPE = 0x00000004
ERR_NO_LICENSE_SERVER = 0x00000006
STATUS_VALID_CLIENT = 0x00000007
ERR_INVALID_CLIENT = 0x00000008
ERR_INVALID_PRODUCTID = 0x0000000B
ERR_INVALID_MESSAGE_LEN = 0x0000000C
ERR_INVALID_MAC = 0x00000003
)
// state transition
const (
ST_TOTAL_ABORT = 0x00000001
ST_NO_TRANSITION = 0x00000002
ST_RESET_PHASE_TO_START = 0x00000003
ST_RESEND_LAST_MESSAGE = 0x00000004
)
/*
"""
@summary: Binary blob data type
@see: http://msdn.microsoft.com/en-us/library/cc240481.aspx
"""
*/
type BinaryBlobType uint16
const (
BB_ANY_BLOB = 0x0000
BB_DATA_BLOB = 0x0001
BB_RANDOM_BLOB = 0x0002
BB_CERTIFICATE_BLOB = 0x0003
BB_ERROR_BLOB = 0x0004
BB_ENCRYPTED_DATA_BLOB = 0x0009
BB_KEY_EXCHG_ALG_BLOB = 0x000D
BB_SCOPE_BLOB = 0x000E
BB_CLIENT_USER_NAME_BLOB = 0x000F
BB_CLIENT_MACHINE_NAME_BLOB = 0x0010
)
type ErrorMessage struct {
DwErrorCode uint32
DwStateTransaction uint32
Blob []byte
}
func readErrorMessage(r io.Reader) *ErrorMessage {
m := &ErrorMessage{}
m.DwErrorCode, _ = core.ReadUInt32LE(r)
m.DwStateTransaction, _ = core.ReadUInt32LE(r)
return m
}
type LicensePacket struct {
BMsgtype uint8
Flag uint8
WMsgSize uint16
LicensingMessage interface{}
}
func ReadLicensePacket(r io.Reader) *LicensePacket {
l := &LicensePacket{}
l.BMsgtype, _ = core.ReadUInt8(r)
l.Flag, _ = core.ReadUInt8(r)
l.WMsgSize, _ = core.ReadUint16LE(r)
switch l.BMsgtype {
case ERROR_ALERT:
l.LicensingMessage = readErrorMessage(r)
default:
l.LicensingMessage, _ = core.ReadBytes(int(l.WMsgSize-4), r)
}
return l
}
/*
"""
@summary: Blob use by license manager to exchange security data
@see: http://msdn.microsoft.com/en-us/library/cc240481.aspx
"""
*/
type LicenseBinaryBlob struct {
WBlobType uint16 `struc:"little"`
WBlobLen uint16 `struc:"little"`
BlobData []byte `struc:"sizefrom=WBlobLen"`
}
func NewLicenseBinaryBlob(WBlobType uint16) *LicenseBinaryBlob {
return &LicenseBinaryBlob{}
}
/*
"""
@summary: License server product information
@see: http://msdn.microsoft.com/en-us/library/cc241915.aspx
"""
*/
type ProductInformation struct {
DwVersion uint32 `struc:"little"`
CbCompanyName uint32 `struc:"little"`
//may contain "Microsoft Corporation" from server microsoft
PbCompanyName []byte `struc:"sizefrom=CbCompanyName"`
CbProductId uint32 `struc:"little"`
//may contain "A02" from microsoft license server
PbProductId []byte `struc:"sizefrom=CbProductId"`
}
/*
@summary: Send by server to signal license request
server -> client
@see: http://msdn.microsoft.com/en-us/library/cc241914.aspx
*/
type ServerLicenseRequest struct {
ServerRandom []byte `struc:"[32]byte"`
ProductInfo ProductInformation `struc:"little"`
KeyExchangeList LicenseBinaryBlob `struc:"little"`
ServerCertificate LicenseBinaryBlob `struc:"little"`
//ScopeList ScopeList
}
/*
@summary: Send by client to ask new license for client.
RDPY doesn'support license reuse, need it in futur version
@see: http://msdn.microsoft.com/en-us/library/cc241918.aspx
#RSA and must be only RSA
#pure microsoft client ;-)
#http://msdn.microsoft.com/en-us/library/1040af38-c733-4fb3-acd1-8db8cc979eda#id10
*/
type ClientNewLicenseRequest struct {
PreferredKeyExchangeAlg uint32 `struc:"little"`
PlatformId uint32 `struc:"little"`
ClientRandom []byte `struc:"[32]byte"`
EncryptedPreMasterSecret LicenseBinaryBlob `struc:"little"`
ClientUserName LicenseBinaryBlob `struc:"little"`
ClientMachineName LicenseBinaryBlob `struc:"little"`
}
/*
@summary: challenge send from server to client
@see: http://msdn.microsoft.com/en-us/library/cc241921.aspx
*/
type ServerPlatformChallenge struct {
ConnectFlags uint32
EncryptedPlatformChallenge LicenseBinaryBlob
MACData [16]byte
}
/*
"""
@summary: client challenge response
@see: http://msdn.microsoft.com/en-us/library/cc241922.aspx
"""
*/
type ClientPLatformChallengeResponse struct {
EncryptedPlatformChallengeResponse LicenseBinaryBlob
EncryptedHWID LicenseBinaryBlob
MACData []byte //[16]byte
}
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package nla
import (
"encoding/asn1"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
)
type NegoToken struct {
Data []byte `asn1:"explicit,tag:0"`
}
type TSRequest struct {
Version int `asn1:"explicit,tag:0"`
NegoTokens []NegoToken `asn1:"optional,explicit,tag:1"`
AuthInfo []byte `asn1:"optional,explicit,tag:2"`
PubKeyAuth []byte `asn1:"optional,explicit,tag:3"`
//ErrorCode int `asn1:"optional,explicit,tag:4"`
}
type TSCredentials struct {
CredType int `asn1:"explicit,tag:0"`
Credentials []byte `asn1:"explicit,tag:1"`
}
type TSPasswordCreds struct {
DomainName []byte `asn1:"explicit,tag:0"`
UserName []byte `asn1:"explicit,tag:1"`
Password []byte `asn1:"explicit,tag:2"`
}
type TSCspDataDetail struct {
KeySpec int `asn1:"explicit,tag:0"`
CardName string `asn1:"explicit,tag:1"`
ReaderName string `asn1:"explicit,tag:2"`
ContainerName string `asn1:"explicit,tag:3"`
CspName string `asn1:"explicit,tag:4"`
}
type TSSmartCardCreds struct {
Pin string `asn1:"explicit,tag:0"`
CspData []TSCspDataDetail `asn1:"explicit,tag:1"`
UserHint string `asn1:"explicit,tag:2"`
DomainHint string `asn1:"explicit,tag:3"`
}
func EncodeDERTRequest(msgs []Message, authInfo []byte, pubKeyAuth []byte) []byte {
req := TSRequest{
Version: 2,
}
if len(msgs) > 0 {
req.NegoTokens = make([]NegoToken, 0, len(msgs))
}
for _, msg := range msgs {
token := NegoToken{msg.Serialize()}
req.NegoTokens = append(req.NegoTokens, token)
}
if len(authInfo) > 0 {
req.AuthInfo = authInfo
}
if len(pubKeyAuth) > 0 {
req.PubKeyAuth = pubKeyAuth
}
result, err := asn1.Marshal(req)
if err != nil {
glog.Error(err)
}
return result
}
func DecodeDERTRequest(s []byte) (*TSRequest, error) {
treq := &TSRequest{}
_, err := asn1.Unmarshal(s, treq)
return treq, err
}
func EncodeDERTCredentials(domain, username, password []byte) []byte {
tpas := TSPasswordCreds{domain, username, password}
result, err := asn1.Marshal(tpas)
if err != nil {
glog.Error(err)
}
tcre := TSCredentials{1, result}
result, err = asn1.Marshal(tcre)
if err != nil {
glog.Error(err)
}
return result
}
func DecodeDERTCredentials(s []byte) (*TSCredentials, error) {
tcre := &TSCredentials{}
_, err := asn1.Unmarshal(s, tcre)
return tcre, err
}
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package nla
import (
"crypto/hmac"
"crypto/md5"
"crypto/rc4"
"strings"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"golang.org/x/crypto/md4"
)
func MD4(data []byte) []byte {
h := md4.New()
h.Write(data)
return h.Sum(nil)
}
func MD5(data []byte) []byte {
h := md5.New()
h.Write(data)
return h.Sum(nil)
}
func HMAC_MD5(key, data []byte) []byte {
h := hmac.New(md5.New, key)
h.Write(data)
return h.Sum(nil)
}
// Version 2 of NTLM hash function
func NTOWFv2(password, user, domain string) []byte {
return HMAC_MD5(MD4(core.UnicodeEncode(password)), core.UnicodeEncode(strings.ToUpper(user)+domain))
}
// Same as NTOWFv2
func LMOWFv2(password, user, domain string) []byte {
return NTOWFv2(password, user, domain)
}
func RC4K(key, src []byte) []byte {
result := make([]byte, len(src))
rc4obj, _ := rc4.NewCipher(key)
rc4obj.XORKeyStream(result, src)
return result
}
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package nla
import (
"bytes"
"crypto/md5"
"crypto/rc4"
"encoding/binary"
"encoding/hex"
"time"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
)
const (
WINDOWS_MINOR_VERSION_0 = 0x00
WINDOWS_MINOR_VERSION_1 = 0x01
WINDOWS_MINOR_VERSION_2 = 0x02
WINDOWS_MINOR_VERSION_3 = 0x03
WINDOWS_MAJOR_VERSION_5 = 0x05
WINDOWS_MAJOR_VERSION_6 = 0x06
NTLMSSP_REVISION_W2K3 = 0x0F
)
const (
MsvAvEOL = 0x0000
MsvAvNbComputerName = 0x0001
MsvAvNbDomainName = 0x0002
MsvAvDnsComputerName = 0x0003
MsvAvDnsDomainName = 0x0004
MsvAvDnsTreeName = 0x0005
MsvAvFlags = 0x0006
MsvAvTimestamp = 0x0007
MsvAvSingleHost = 0x0008
MsvAvTargetName = 0x0009
MsvChannelBindings = 0x000A
)
type AVPair struct {
Id uint16 `struc:"little"`
Len uint16 `struc:"little,sizeof=Value"`
Value []byte `struc:"little"`
}
const (
NTLMSSP_NEGOTIATE_56 = 0x80000000
NTLMSSP_NEGOTIATE_KEY_EXCH = 0x40000000
NTLMSSP_NEGOTIATE_128 = 0x20000000
NTLMSSP_NEGOTIATE_VERSION = 0x02000000
NTLMSSP_NEGOTIATE_TARGET_INFO = 0x00800000
NTLMSSP_REQUEST_NON_NT_SESSION_KEY = 0x00400000
NTLMSSP_NEGOTIATE_IDENTIFY = 0x00100000
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY = 0x00080000
NTLMSSP_TARGET_TYPE_SERVER = 0x00020000
NTLMSSP_TARGET_TYPE_DOMAIN = 0x00010000
NTLMSSP_NEGOTIATE_ALWAYS_SIGN = 0x00008000
NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED = 0x00002000
NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED = 0x00001000
NTLMSSP_NEGOTIATE_NTLM = 0x00000200
NTLMSSP_NEGOTIATE_LM_KEY = 0x00000080
NTLMSSP_NEGOTIATE_DATAGRAM = 0x00000040
NTLMSSP_NEGOTIATE_SEAL = 0x00000020
NTLMSSP_NEGOTIATE_SIGN = 0x00000010
NTLMSSP_REQUEST_TARGET = 0x00000004
NTLM_NEGOTIATE_OEM = 0x00000002
NTLMSSP_NEGOTIATE_UNICODE = 0x00000001
)
type NVersion struct {
ProductMajorVersion uint8 `struc:"little"`
ProductMinorVersion uint8 `struc:"little"`
ProductBuild uint16 `struc:"little"`
Reserved [3]byte `struc:"little"`
NTLMRevisionCurrent uint8 `struc:"little"`
}
func NewNVersion() NVersion {
return NVersion{
ProductMajorVersion: WINDOWS_MAJOR_VERSION_6,
ProductMinorVersion: WINDOWS_MINOR_VERSION_0,
ProductBuild: 6002,
NTLMRevisionCurrent: NTLMSSP_REVISION_W2K3,
}
}
type Message interface {
Serialize() []byte
}
type NegotiateMessage struct {
Signature [8]byte `struc:"little"`
MessageType uint32 `struc:"little"`
NegotiateFlags uint32 `struc:"little"`
DomainNameLen uint16 `struc:"little"`
DomainNameMaxLen uint16 `struc:"little"`
DomainNameBufferOffset uint32 `struc:"little"`
WorkstationLen uint16 `struc:"little"`
WorkstationMaxLen uint16 `struc:"little"`
WorkstationBufferOffset uint32 `struc:"little"`
Version NVersion `struc:"little"`
Payload [32]byte `struc:"skip"`
}
func NewNegotiateMessage() *NegotiateMessage {
return &NegotiateMessage{
Signature: [8]byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0x00},
MessageType: 0x00000001,
}
}
func (m *NegotiateMessage) Serialize() []byte {
if (m.NegotiateFlags & NTLMSSP_NEGOTIATE_VERSION) != 0 {
m.Version = NewNVersion()
}
buff := &bytes.Buffer{}
struc.Pack(buff, m)
return buff.Bytes()
}
type ChallengeMessage struct {
Signature []byte `struc:"[8]byte"`
MessageType uint32 `struc:"little"`
TargetNameLen uint16 `struc:"little"`
TargetNameMaxLen uint16 `struc:"little"`
TargetNameBufferOffset uint32 `struc:"little"`
NegotiateFlags uint32 `struc:"little"`
ServerChallenge [8]byte `struc:"little"`
Reserved [8]byte `struc:"little"`
TargetInfoLen uint16 `struc:"little"`
TargetInfoMaxLen uint16 `struc:"little"`
TargetInfoBufferOffset uint32 `struc:"little"`
Version NVersion `struc:"skip"`
Payload []byte `struc:"skip"`
}
func (m *ChallengeMessage) Serialize() []byte {
buff := &bytes.Buffer{}
struc.Pack(buff, m)
if (m.NegotiateFlags & NTLMSSP_NEGOTIATE_VERSION) != 0 {
struc.Pack(buff, m.Version)
}
buff.Write(m.Payload)
return buff.Bytes()
}
func NewChallengeMessage() *ChallengeMessage {
return &ChallengeMessage{
Signature: []byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0x00},
MessageType: 0x00000002,
}
}
// total len - payload len
func (m *ChallengeMessage) BaseLen() uint32 {
return 56
}
func (m *ChallengeMessage) getTargetInfo() []byte {
if m.TargetInfoLen == 0 {
return make([]byte, 0)
}
offset := m.BaseLen()
start := m.TargetInfoBufferOffset - offset
return m.Payload[start : start+uint32(m.TargetInfoLen)]
}
func (m *ChallengeMessage) getTargetName() []byte {
if m.TargetNameLen == 0 {
return make([]byte, 0)
}
offset := m.BaseLen()
start := m.TargetNameBufferOffset - offset
return m.Payload[start : start+uint32(m.TargetNameLen)]
}
func (m *ChallengeMessage) getTargetInfoTimestamp(data []byte) []byte {
r := bytes.NewReader(data)
for r.Len() > 0 {
avPair := &AVPair{}
struc.Unpack(r, avPair)
if avPair.Id == MsvAvTimestamp {
return avPair.Value
}
if avPair.Id == MsvAvEOL {
break
}
}
return nil
}
type AuthenticateMessage struct {
Signature [8]byte
MessageType uint32 `struc:"little"`
LmChallengeResponseLen uint16 `struc:"little"`
LmChallengeResponseMaxLen uint16 `struc:"little"`
LmChallengeResponseBufferOffset uint32 `struc:"little"`
NtChallengeResponseLen uint16 `struc:"little"`
NtChallengeResponseMaxLen uint16 `struc:"little"`
NtChallengeResponseBufferOffset uint32 `struc:"little"`
DomainNameLen uint16 `struc:"little"`
DomainNameMaxLen uint16 `struc:"little"`
DomainNameBufferOffset uint32 `struc:"little"`
UserNameLen uint16 `struc:"little"`
UserNameMaxLen uint16 `struc:"little"`
UserNameBufferOffset uint32 `struc:"little"`
WorkstationLen uint16 `struc:"little"`
WorkstationMaxLen uint16 `struc:"little"`
WorkstationBufferOffset uint32 `struc:"little"`
EncryptedRandomSessionLen uint16 `struc:"little"`
EncryptedRandomSessionMaxLen uint16 `struc:"little"`
EncryptedRandomSessionBufferOffset uint32 `struc:"little"`
NegotiateFlags uint32 `struc:"little"`
Version NVersion `struc:"little"`
MIC [16]byte `struc:"little"`
Payload []byte `struc:"skip"`
}
func (m *AuthenticateMessage) BaseLen() uint32 {
return 88
}
func NewAuthenticateMessage(negFlag uint32, domain, user, workstation []byte,
lmchallResp, ntchallResp, enRandomSessKey []byte) *AuthenticateMessage {
msg := &AuthenticateMessage{
Signature: [8]byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0x00},
MessageType: 0x00000003,
NegotiateFlags: negFlag,
}
payloadBuff := &bytes.Buffer{}
msg.LmChallengeResponseLen = uint16(len(lmchallResp))
msg.LmChallengeResponseMaxLen = msg.LmChallengeResponseLen
msg.LmChallengeResponseBufferOffset = msg.BaseLen()
payloadBuff.Write(lmchallResp)
msg.NtChallengeResponseLen = uint16(len(ntchallResp))
msg.NtChallengeResponseMaxLen = msg.NtChallengeResponseLen
msg.NtChallengeResponseBufferOffset = msg.LmChallengeResponseBufferOffset + uint32(msg.LmChallengeResponseLen)
payloadBuff.Write(ntchallResp)
msg.DomainNameLen = uint16(len(domain))
msg.DomainNameMaxLen = msg.DomainNameLen
msg.DomainNameBufferOffset = msg.NtChallengeResponseBufferOffset + uint32(msg.NtChallengeResponseLen)
payloadBuff.Write(domain)
msg.UserNameLen = uint16(len(user))
msg.UserNameMaxLen = msg.UserNameLen
msg.UserNameBufferOffset = msg.DomainNameBufferOffset + uint32(msg.DomainNameLen)
payloadBuff.Write(user)
msg.WorkstationLen = uint16(len(workstation))
msg.WorkstationMaxLen = msg.WorkstationLen
msg.WorkstationBufferOffset = msg.UserNameBufferOffset + uint32(msg.UserNameLen)
payloadBuff.Write(workstation)
msg.EncryptedRandomSessionLen = uint16(len(enRandomSessKey))
msg.EncryptedRandomSessionMaxLen = msg.EncryptedRandomSessionLen
msg.EncryptedRandomSessionBufferOffset = msg.WorkstationBufferOffset + uint32(msg.WorkstationLen)
payloadBuff.Write(enRandomSessKey)
if (msg.NegotiateFlags & NTLMSSP_NEGOTIATE_VERSION) != 0 {
msg.Version = NewNVersion()
}
msg.Payload = payloadBuff.Bytes()
return msg
}
func (m *AuthenticateMessage) Serialize() []byte {
buff := &bytes.Buffer{}
struc.Pack(buff, m)
buff.Write(m.Payload)
return buff.Bytes()
}
type NTLMv2 struct {
domain string
user string
password string
respKeyNT []byte
respKeyLM []byte
negotiateMessage *NegotiateMessage
challengeMessage *ChallengeMessage
authenticateMessage *AuthenticateMessage
enableUnicode bool
}
func NewNTLMv2(domain, user, password string) *NTLMv2 {
return &NTLMv2{
domain: domain,
user: user,
password: password,
respKeyNT: NTOWFv2(password, user, domain),
respKeyLM: LMOWFv2(password, user, domain),
}
}
// generate first handshake messgae
func (n *NTLMv2) GetNegotiateMessage() *NegotiateMessage {
negoMsg := NewNegotiateMessage()
negoMsg.NegotiateFlags = NTLMSSP_NEGOTIATE_KEY_EXCH |
NTLMSSP_NEGOTIATE_128 |
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY |
NTLMSSP_NEGOTIATE_ALWAYS_SIGN |
NTLMSSP_NEGOTIATE_NTLM |
NTLMSSP_NEGOTIATE_SEAL |
NTLMSSP_NEGOTIATE_SIGN |
NTLMSSP_REQUEST_TARGET |
NTLMSSP_NEGOTIATE_UNICODE
n.negotiateMessage = negoMsg
return n.negotiateMessage
}
// process NTLMv2 Authenticate hash
func (n *NTLMv2) ComputeResponseV2(respKeyNT, respKeyLM, serverChallenge, clientChallenge,
timestamp, serverInfo []byte) (ntChallResp, lmChallResp, SessBaseKey []byte) {
tempBuff := &bytes.Buffer{}
tempBuff.Write([]byte{0x01, 0x01}) // Responser version, HiResponser version
tempBuff.Write([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
tempBuff.Write(timestamp)
tempBuff.Write(clientChallenge)
tempBuff.Write([]byte{0x00, 0x00, 0x00, 0x00})
tempBuff.Write(serverInfo)
tempBuff.Write([]byte{0x00, 0x00, 0x00, 0x00})
ntBuf := bytes.NewBuffer(serverChallenge)
ntBuf.Write(tempBuff.Bytes())
ntProof := HMAC_MD5(respKeyNT, ntBuf.Bytes())
ntChallResp = make([]byte, 0, len(ntProof)+tempBuff.Len())
ntChallResp = append(ntChallResp, ntProof...)
ntChallResp = append(ntChallResp, tempBuff.Bytes()...)
lmBuf := bytes.NewBuffer(serverChallenge)
lmBuf.Write(clientChallenge)
lmChallResp = HMAC_MD5(respKeyLM, lmBuf.Bytes())
lmChallResp = append(lmChallResp, clientChallenge...)
SessBaseKey = HMAC_MD5(respKeyNT, ntProof)
return
}
func MIC(exportedSessionKey []byte, negotiateMessage, challengeMessage, authenticateMessage Message) []byte {
buff := bytes.Buffer{}
buff.Write(negotiateMessage.Serialize())
buff.Write(challengeMessage.Serialize())
buff.Write(authenticateMessage.Serialize())
return HMAC_MD5(exportedSessionKey, buff.Bytes())
}
func concat(bs ...[]byte) []byte {
return bytes.Join(bs, nil)
}
var (
clientSigning = concat([]byte("session key to client-to-server signing key magic constant"), []byte{0x00})
serverSigning = concat([]byte("session key to server-to-client signing key magic constant"), []byte{0x00})
clientSealing = concat([]byte("session key to client-to-server sealing key magic constant"), []byte{0x00})
serverSealing = concat([]byte("session key to server-to-client sealing key magic constant"), []byte{0x00})
)
func (n *NTLMv2) GetAuthenticateMessage(s []byte) (*AuthenticateMessage, *NTLMv2Security) {
challengeMsg := &ChallengeMessage{}
r := bytes.NewReader(s)
err := struc.Unpack(r, challengeMsg)
if err != nil {
glog.Error("read challengeMsg", err)
return nil, nil
}
if challengeMsg.NegotiateFlags&NTLMSSP_NEGOTIATE_VERSION != 0 {
version := NVersion{}
err := struc.Unpack(r, &version)
if err != nil {
glog.Error("read version", err)
return nil, nil
}
challengeMsg.Version = version
}
challengeMsg.Payload, _ = core.ReadBytes(r.Len(), r)
n.challengeMessage = challengeMsg
glog.Debugf("challengeMsg:%+v", challengeMsg)
serverName := challengeMsg.getTargetName()
serverInfo := challengeMsg.getTargetInfo()
timestamp := challengeMsg.getTargetInfoTimestamp(serverInfo)
computeMIC := false
if timestamp == nil {
ft := uint64(time.Now().UnixNano()) / 100
ft += 116444736000000000 // add time between unix & windows offset
timestamp = make([]byte, 8)
binary.LittleEndian.PutUint64(timestamp, ft)
} else {
computeMIC = true
}
glog.Infof("serverName=%+v", core.UnicodeDecode(serverName))
serverChallenge := challengeMsg.ServerChallenge[:]
clientChallenge := core.Random(8)
ntChallengeResponse, lmChallengeResponse, SessionBaseKey := n.ComputeResponseV2(
n.respKeyNT, n.respKeyLM, serverChallenge, clientChallenge, timestamp, serverInfo)
exchangeKey := SessionBaseKey
exportedSessionKey := core.Random(16)
EncryptedRandomSessionKey := make([]byte, len(exportedSessionKey))
rc, _ := rc4.NewCipher(exchangeKey)
rc.XORKeyStream(EncryptedRandomSessionKey, exportedSessionKey)
if challengeMsg.NegotiateFlags&NTLMSSP_NEGOTIATE_UNICODE != 0 {
n.enableUnicode = true
}
glog.Infof("user: %s, passwd:%s", n.user, n.password)
domain, user, _ := n.GetEncodedCredentials()
n.authenticateMessage = NewAuthenticateMessage(challengeMsg.NegotiateFlags,
domain, user, []byte(""), lmChallengeResponse, ntChallengeResponse, EncryptedRandomSessionKey)
if computeMIC {
copy(n.authenticateMessage.MIC[:], MIC(exportedSessionKey, n.negotiateMessage, n.challengeMessage, n.authenticateMessage)[:16])
}
md := md5.New()
//ClientSigningKey
a := concat(exportedSessionKey, clientSigning)
md.Write(a)
ClientSigningKey := md.Sum(nil)
//ServerSigningKey
md.Reset()
a = concat(exportedSessionKey, serverSigning)
md.Write(a)
ServerSigningKey := md.Sum(nil)
//ClientSealingKey
md.Reset()
a = concat(exportedSessionKey, clientSealing)
md.Write(a)
ClientSealingKey := md.Sum(nil)
//ServerSealingKey
md.Reset()
a = concat(exportedSessionKey, serverSealing)
md.Write(a)
ServerSealingKey := md.Sum(nil)
glog.Debugf("ClientSigningKey:%s", hex.EncodeToString(ClientSigningKey))
glog.Debugf("ServerSigningKey:%s", hex.EncodeToString(ServerSigningKey))
glog.Debugf("ClientSealingKey:%s", hex.EncodeToString(ClientSealingKey))
glog.Debugf("ServerSealingKey:%s", hex.EncodeToString(ServerSealingKey))
encryptRC4, _ := rc4.NewCipher(ClientSealingKey)
decryptRC4, _ := rc4.NewCipher(ServerSealingKey)
ntlmSec := &NTLMv2Security{encryptRC4, decryptRC4, ClientSigningKey, ServerSigningKey, 0}
return n.authenticateMessage, ntlmSec
}
func (n *NTLMv2) GetEncodedCredentials() ([]byte, []byte, []byte) {
if n.enableUnicode {
return core.UnicodeEncode(n.domain), core.UnicodeEncode(n.user), core.UnicodeEncode(n.password)
}
return []byte(n.domain), []byte(n.user), []byte(n.password)
}
type NTLMv2Security struct {
EncryptRC4 *rc4.Cipher
DecryptRC4 *rc4.Cipher
SigningKey []byte
VerifyKey []byte
SeqNum uint32
}
func (n *NTLMv2Security) GssEncrypt(s []byte) []byte {
p := make([]byte, len(s))
n.EncryptRC4.XORKeyStream(p, s)
b := &bytes.Buffer{}
//signature
core.WriteUInt32LE(n.SeqNum, b)
core.WriteBytes(s, b)
s1 := HMAC_MD5(n.SigningKey, b.Bytes())[:8]
checksum := make([]byte, 8)
n.EncryptRC4.XORKeyStream(checksum, s1)
b.Reset()
core.WriteUInt32LE(0x00000001, b)
core.WriteBytes(checksum, b)
core.WriteUInt32LE(n.SeqNum, b)
core.WriteBytes(p, b)
n.SeqNum++
return b.Bytes()
}
func (n *NTLMv2Security) GssDecrypt(s []byte) []byte {
r := bytes.NewReader(s)
core.ReadUInt32LE(r) //version
checksum, _ := core.ReadBytes(8, r)
seqNum, _ := core.ReadUInt32LE(r)
data, _ := core.ReadBytes(r.Len(), r)
p := make([]byte, len(data))
n.DecryptRC4.XORKeyStream(p, data)
check := make([]byte, len(checksum))
n.DecryptRC4.XORKeyStream(check, checksum)
b := &bytes.Buffer{}
core.WriteUInt32LE(seqNum, b)
core.WriteBytes(p, b)
verify := HMAC_MD5(n.VerifyKey, b.Bytes())
if string(verify) != string(check) {
return nil
}
return p
}
+760
View File
@@ -0,0 +1,760 @@
package pdu
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
)
type CapsType uint16
const (
CAPSTYPE_GENERAL CapsType = 0x0001
CAPSTYPE_BITMAP = 0x0002
CAPSTYPE_ORDER = 0x0003
CAPSTYPE_BITMAPCACHE = 0x0004
CAPSTYPE_CONTROL = 0x0005
CAPSTYPE_ACTIVATION = 0x0007
CAPSTYPE_POINTER = 0x0008
CAPSTYPE_SHARE = 0x0009
CAPSTYPE_COLORCACHE = 0x000A
CAPSTYPE_SOUND = 0x000C
CAPSTYPE_INPUT = 0x000D
CAPSTYPE_FONT = 0x000E
CAPSTYPE_BRUSH = 0x000F
CAPSTYPE_GLYPHCACHE = 0x0010
CAPSTYPE_OFFSCREENCACHE = 0x0011
CAPSTYPE_BITMAPCACHE_HOSTSUPPORT = 0x0012
CAPSTYPE_BITMAPCACHE_REV2 = 0x0013
CAPSTYPE_VIRTUALCHANNEL = 0x0014
CAPSTYPE_DRAWNINEGRIDCACHE = 0x0015
CAPSTYPE_DRAWGDIPLUS = 0x0016
CAPSTYPE_RAIL = 0x0017
CAPSTYPE_WINDOW = 0x0018
CAPSETTYPE_COMPDESK = 0x0019
CAPSETTYPE_MULTIFRAGMENTUPDATE = 0x001A
CAPSETTYPE_LARGE_POINTER = 0x001B
CAPSETTYPE_SURFACE_COMMANDS = 0x001C
CAPSETTYPE_BITMAP_CODECS = 0x001D
CAPSSETTYPE_FRAME_ACKNOWLEDGE = 0x001E
)
func (c CapsType) String() string {
switch c {
case CAPSTYPE_GENERAL:
return "CAPSTYPE_GENERAL"
case CAPSTYPE_BITMAP:
return "CAPSTYPE_BITMAP"
case CAPSTYPE_ORDER:
return "CAPSTYPE_ORDER"
case CAPSTYPE_BITMAPCACHE:
return "CAPSTYPE_BITMAPCACHE"
case CAPSTYPE_CONTROL:
return "CAPSTYPE_CONTROL"
case CAPSTYPE_ACTIVATION:
return "CAPSTYPE_ACTIVATION"
case CAPSTYPE_POINTER:
return "CAPSTYPE_POINTER"
case CAPSTYPE_SHARE:
return "CAPSTYPE_SHARE"
case CAPSTYPE_COLORCACHE:
return "CAPSTYPE_COLORCACHE"
case CAPSTYPE_SOUND:
return "CAPSTYPE_SOUND"
case CAPSTYPE_INPUT:
return "CAPSTYPE_INPUT"
case CAPSTYPE_FONT:
return "CAPSTYPE_FONT"
case CAPSTYPE_BRUSH:
return "CAPSTYPE_BRUSH"
case CAPSTYPE_GLYPHCACHE:
return "CAPSTYPE_GLYPHCACHE"
case CAPSTYPE_OFFSCREENCACHE:
return "CAPSTYPE_OFFSCREENCACHE"
case CAPSTYPE_BITMAPCACHE_HOSTSUPPORT:
return "CAPSTYPE_BITMAPCACHE_HOSTSUPPORT"
case CAPSTYPE_BITMAPCACHE_REV2:
return "CAPSTYPE_BITMAPCACHE_REV2"
case CAPSTYPE_VIRTUALCHANNEL:
return "CAPSTYPE_VIRTUALCHANNEL"
case CAPSTYPE_DRAWNINEGRIDCACHE:
return "CAPSTYPE_DRAWNINEGRIDCACHE"
case CAPSTYPE_DRAWGDIPLUS:
return "CAPSTYPE_DRAWGDIPLUS"
case CAPSTYPE_RAIL:
return "CAPSTYPE_RAIL"
case CAPSTYPE_WINDOW:
return "CAPSTYPE_WINDOW"
case CAPSETTYPE_COMPDESK:
return "CAPSETTYPE_COMPDESK"
case CAPSETTYPE_MULTIFRAGMENTUPDATE:
return "CAPSETTYPE_MULTIFRAGMENTUPDATE"
case CAPSETTYPE_LARGE_POINTER:
return "CAPSETTYPE_LARGE_POINTER"
case CAPSETTYPE_SURFACE_COMMANDS:
return "CAPSETTYPE_SURFACE_COMMANDS"
case CAPSETTYPE_BITMAP_CODECS:
return "CAPSETTYPE_BITMAP_CODECS"
case CAPSSETTYPE_FRAME_ACKNOWLEDGE:
return "CAPSSETTYPE_FRAME_ACKNOWLEDGE"
}
return "Unknown"
}
type MajorType uint16
const (
OSMAJORTYPE_UNSPECIFIED MajorType = 0x0000
OSMAJORTYPE_WINDOWS = 0x0001
OSMAJORTYPE_OS2 = 0x0002
OSMAJORTYPE_MACINTOSH = 0x0003
OSMAJORTYPE_UNIX = 0x0004
OSMAJORTYPE_IOS = 0x0005
OSMAJORTYPE_OSX = 0x0006
OSMAJORTYPE_ANDROID = 0x0007
)
type MinorType uint16
const (
OSMINORTYPE_UNSPECIFIED MinorType = 0x0000
OSMINORTYPE_WINDOWS_31X = 0x0001
OSMINORTYPE_WINDOWS_95 = 0x0002
OSMINORTYPE_WINDOWS_NT = 0x0003
OSMINORTYPE_OS2_V21 = 0x0004
OSMINORTYPE_POWER_PC = 0x0005
OSMINORTYPE_MACINTOSH = 0x0006
OSMINORTYPE_NATIVE_XSERVER = 0x0007
OSMINORTYPE_PSEUDO_XSERVER = 0x0008
OSMINORTYPE_WINDOWS_RT = 0x0009
)
const (
FASTPATH_OUTPUT_SUPPORTED uint16 = 0x0001
NO_BITMAP_COMPRESSION_HDR = 0x0400
LONG_CREDENTIALS_SUPPORTED = 0x0004
AUTORECONNECT_SUPPORTED = 0x0008
ENC_SALTED_CHECKSUM = 0x0010
)
type OrderFlag uint16
const (
NEGOTIATEORDERSUPPORT OrderFlag = 0x0002
ZEROBOUNDSDELTASSUPPORT = 0x0008
COLORINDEXSUPPORT = 0x0020
SOLIDPATTERNBRUSHONLY = 0x0040
ORDERFLAGS_EXTRA_FLAGS = 0x0080
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240556.aspx
*/
type Order uint8
const (
TS_NEG_DSTBLT_INDEX Order = 0x00
TS_NEG_PATBLT_INDEX = 0x01
TS_NEG_SCRBLT_INDEX = 0x02
TS_NEG_MEMBLT_INDEX = 0x03
TS_NEG_MEM3BLT_INDEX = 0x04
TS_NEG_DRAWNINEGRID_INDEX = 0x07
TS_NEG_LINETO_INDEX = 0x08
TS_NEG_MULTI_DRAWNINEGRID_INDEX = 0x09
TS_NEG_SAVEBITMAP_INDEX = 0x0B
TS_NEG_MULTIDSTBLT_INDEX = 0x0F
TS_NEG_MULTIPATBLT_INDEX = 0x10
TS_NEG_MULTISCRBLT_INDEX = 0x11
TS_NEG_MULTIOPAQUERECT_INDEX = 0x12
TS_NEG_FAST_INDEX_INDEX = 0x13
TS_NEG_POLYGON_SC_INDEX = 0x14
TS_NEG_POLYGON_CB_INDEX = 0x15
TS_NEG_POLYLINE_INDEX = 0x16
TS_NEG_FAST_GLYPH_INDEX = 0x18
TS_NEG_ELLIPSE_SC_INDEX = 0x19
TS_NEG_ELLIPSE_CB_INDEX = 0x1A
TS_NEG_GLYPH_INDEX_INDEX = 0x1B
)
type OrderEx uint16
const (
ORDERFLAGS_EX_CACHE_BITMAP_REV3_SUPPORT OrderEx = 0x0002
ORDERFLAGS_EX_ALTSEC_FRAME_MARKER_SUPPORT = 0x0004
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240563.aspx
*/
const (
INPUT_FLAG_SCANCODES uint16 = 0x0001
INPUT_FLAG_MOUSEX = 0x0004
INPUT_FLAG_FASTPATH_INPUT = 0x0008
INPUT_FLAG_UNICODE = 0x0010
INPUT_FLAG_FASTPATH_INPUT2 = 0x0020
INPUT_FLAG_UNUSED1 = 0x0040
INPUT_FLAG_UNUSED2 = 0x0080
INPUT_FLAG_MOUSE_HWHEEL = 0x0100
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240564.aspx
*/
type BrushSupport uint32
const (
BRUSH_DEFAULT BrushSupport = 0x00000000
BRUSH_COLOR_8x8 = 0x00000001
BRUSH_COLOR_FULL = 0x00000002
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240565.aspx
*/
type GlyphSupport uint16
const (
GLYPH_SUPPORT_NONE GlyphSupport = 0x0000
GLYPH_SUPPORT_PARTIAL = 0x0001
GLYPH_SUPPORT_FULL = 0x0002
GLYPH_SUPPORT_ENCODE = 0x0003
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240550.aspx
*/
type OffscreenSupportLevel uint32
const (
OSL_FALSE OffscreenSupportLevel = 0x00000000
OSL_TRUE = 0x00000001
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240551.aspx
*/
type VirtualChannelCompressionFlag uint32
const (
VCCAPS_NO_COMPR VirtualChannelCompressionFlag = 0x00000000
VCCAPS_COMPR_SC = 0x00000001
VCCAPS_COMPR_CS_8K = 0x00000002
)
type SoundFlag uint16
const (
SOUND_NONE SoundFlag = 0x0000
SOUND_BEEPS_FLAG = 0x0001
)
type RailsupportLevel uint32
const (
RAIL_LEVEL_SUPPORTED = 0x00000001
RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED = 0x00000002
RAIL_LEVEL_SHELL_INTEGRATION_SUPPORTED = 0x00000004
RAIL_LEVEL_LANGUAGE_IME_SYNC_SUPPORTED = 0x00000008
RAIL_LEVEL_SERVER_TO_CLIENT_IME_SYNC_SUPPORTED = 0x00000010
RAIL_LEVEL_HIDE_MINIMIZED_APPS_SUPPORTED = 0x00000020
RAIL_LEVEL_WINDOW_CLOAKING_SUPPORTED = 0x00000040
RAIL_LEVEL_HANDSHAKE_EX_SUPPORTED = 0x00000080
)
const (
INPUT_EVENT_SYNC = 0x0000
INPUT_EVENT_UNUSED = 0x0002
INPUT_EVENT_SCANCODE = 0x0004
INPUT_EVENT_UNICODE = 0x0005
INPUT_EVENT_MOUSE = 0x8001
INPUT_EVENT_MOUSEX = 0x8002
)
const (
PTRFLAGS_HWHEEL = 0x0400
PTRFLAGS_WHEEL = 0x0200
PTRFLAGS_WHEEL_NEGATIVE = 0x0100
WheelRotationMask = 0x01FF
PTRFLAGS_MOVE = 0x0800
PTRFLAGS_DOWN = 0x8000
PTRFLAGS_BUTTON1 = 0x1000
PTRFLAGS_BUTTON2 = 0x2000
PTRFLAGS_BUTTON3 = 0x4000
)
const (
KBDFLAGS_EXTENDED = 0x0100
KBDFLAGS_DOWN = 0x4000
KBDFLAGS_RELEASE = 0x8000
)
type SurfaceCmdFlags uint32
const (
SURFCMDS_SET_SURFACE_BITS = 0x00000002
SURFCMDS_FRAME_MARKER = 0x00000010
SURFCMDS_STREAM_SURFACE_BITS = 0x00000040
)
type Capability interface {
Type() CapsType
}
type GeneralCapability struct {
// 010018000100030000020000000015040000000000000000
OSMajorType MajorType `struc:"little"`
OSMinorType MinorType `struc:"little"`
ProtocolVersion uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
GeneralCompressionTypes uint16 `struc:"little"`
ExtraFlags uint16 `struc:"little"`
UpdateCapabilityFlag uint16 `struc:"little"`
RemoteUnshareFlag uint16 `struc:"little"`
GeneralCompressionLevel uint16 `struc:"little"`
RefreshRectSupport uint8 `struc:"little"`
SuppressOutputSupport uint8 `struc:"little"`
}
func (*GeneralCapability) Type() CapsType {
return CAPSTYPE_GENERAL
}
type BitmapCapability struct {
// 02001c00180001000100010000052003000000000100000001000000
PreferredBitsPerPixel gcc.HighColor `struc:"little"`
Receive1BitPerPixel uint16 `struc:"little"`
Receive4BitsPerPixel uint16 `struc:"little"`
Receive8BitsPerPixel uint16 `struc:"little"`
DesktopWidth uint16 `struc:"little"`
DesktopHeight uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
DesktopResizeFlag uint16 `struc:"little"`
BitmapCompressionFlag uint16 `struc:"little"`
HighColorFlags uint8 `struc:"little"`
DrawingFlags uint8 `struc:"little"`
MultipleRectangleSupport uint16 `struc:"little"`
Pad2octetsB uint16 `struc:"little"`
}
func (*BitmapCapability) Type() CapsType {
return CAPSTYPE_BITMAP
}
type BitmapCacheCapability struct {
// 04002800000000000000000000000000000000000000000000000000000000000000000000000000
Pad1 uint32 `struc:"little"`
Pad2 uint32 `struc:"little"`
Pad3 uint32 `struc:"little"`
Pad4 uint32 `struc:"little"`
Pad5 uint32 `struc:"little"`
Pad6 uint32 `struc:"little"`
Cache0Entries uint16 `struc:"little"`
Cache0MaximumCellSize uint16 `struc:"little"`
Cache1Entries uint16 `struc:"little"`
Cache1MaximumCellSize uint16 `struc:"little"`
Cache2Entries uint16 `struc:"little"`
Cache2MaximumCellSize uint16 `struc:"little"`
}
func (*BitmapCacheCapability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE
}
type OrderCapability struct {
// 030058000000000000000000000000000000000000000000010014000000010000000a0000000000000000000000000000000000000000000000000000000000000000000000000000000000008403000000000000000000
TerminalDescriptor [16]byte
Pad4octetsA uint32 `struc:"little"`
DesktopSaveXGranularity uint16 `struc:"little"`
DesktopSaveYGranularity uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
MaximumOrderLevel uint16 `struc:"little"`
NumberFonts uint16 `struc:"little"`
OrderFlags OrderFlag `struc:"little"`
OrderSupport [32]byte
TextFlags uint16 `struc:"little"`
OrderSupportExFlags uint16 `struc:"little"`
Pad4octetsB uint32 `struc:"little"`
DesktopSaveSize uint32 `struc:"little"`
Pad2octetsC uint16 `struc:"little"`
Pad2octetsD uint16 `struc:"little"`
TextANSICodePage uint16 `struc:"little"`
Pad2octetsE uint16 `struc:"little"`
}
func (*OrderCapability) Type() CapsType {
return CAPSTYPE_ORDER
}
type PointerCapability struct {
ColorPointerFlag uint16 `struc:"little"`
ColorPointerCacheSize uint16 `struc:"little"`
// old version of rdp doesn't support ...
PointerCacheSize uint16 `struc:"little"` // only server need
}
func (*PointerCapability) Type() CapsType {
return CAPSTYPE_POINTER
}
type InputCapability struct {
// 0d005c001500000009040000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c000000
Flags uint16 `struc:"little"`
Pad2octetsA uint16 `struc:"little"`
// same value as gcc.ClientCoreSettings.kbdLayout
KeyboardLayout gcc.KeyboardLayout `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardType
KeyboardType uint32 `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardSubType
KeyboardSubType uint32 `struc:"little"`
// same value as gcc.ClientCoreSettings.keyboardFnKeys
KeyboardFunctionKey uint32 `struc:"little"`
// same value as gcc.ClientCoreSettingrrs.imeFileName
ImeFileName [64]byte
//need add 0c000000 in the end
}
func (*InputCapability) Type() CapsType {
return CAPSTYPE_INPUT
}
type BrushCapability struct {
// 0f00080000000000
SupportLevel BrushSupport `struc:"little"`
}
func (*BrushCapability) Type() CapsType {
return CAPSTYPE_BRUSH
}
type cacheEntry struct {
Entries uint16 `struc:"little"`
MaximumCellSize uint16 `struc:"little"`
}
type GlyphCapability struct {
// 10003400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
GlyphCache [10]cacheEntry `struc:"little"`
FragCache uint32 `struc:"little"`
SupportLevel GlyphSupport `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*GlyphCapability) Type() CapsType {
return CAPSTYPE_GLYPHCACHE
}
type OffscreenBitmapCacheCapability struct {
// 11000c000000000000000000
SupportLevel OffscreenSupportLevel `struc:"little"`
CacheSize uint16 `struc:"little"`
CacheEntries uint16 `struc:"little"`
}
func (*OffscreenBitmapCacheCapability) Type() CapsType {
return CAPSTYPE_OFFSCREENCACHE
}
type BitmapCache2Capability struct {
BitmapCachePersist uint16 `struc:"little"`
Pad2octets uint8 `struc:"little"`
CachesNum uint8 `struc:"little"`
BmpC0Cells uint32 `struc:"little"`
BmpC1Cells uint32 `struc:"little"`
BmpC2Cells uint32 `struc:"little"`
BmpC3Cells uint32 `struc:"little"`
BmpC4Cells uint32 `struc:"little"`
Pad2octets1 [12]byte `struc:"little"`
}
func (*BitmapCache2Capability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE_REV2
}
type VirtualChannelCapability struct {
// 14000c000000000000000000
Flags VirtualChannelCompressionFlag `struc:"little"`
VCChunkSize uint32 `struc:"little"` // optional
}
func (*VirtualChannelCapability) Type() CapsType {
return CAPSTYPE_VIRTUALCHANNEL
}
type SoundCapability struct {
// 0c00080000000000
Flags SoundFlag `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*SoundCapability) Type() CapsType {
return CAPSTYPE_SOUND
}
type ControlCapability struct {
ControlFlags uint16 `struc:"little"`
RemoteDetachFlag uint16 `struc:"little"`
ControlInterest uint16 `struc:"little"`
DetachInterest uint16 `struc:"little"`
}
func (*ControlCapability) Type() CapsType {
return CAPSTYPE_CONTROL
}
type WindowActivationCapability struct {
HelpKeyFlag uint16 `struc:"little"`
HelpKeyIndexFlag uint16 `struc:"little"`
HelpExtendedKeyFlag uint16 `struc:"little"`
WindowManagerKeyFlag uint16 `struc:"little"`
}
func (*WindowActivationCapability) Type() CapsType {
return CAPSTYPE_ACTIVATION
}
type FontCapability struct {
SupportFlags uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*FontCapability) Type() CapsType {
return CAPSTYPE_FONT
}
type ColorCacheCapability struct {
CacheSize uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*ColorCacheCapability) Type() CapsType {
return CAPSTYPE_COLORCACHE
}
type ShareCapability struct {
NodeId uint16 `struc:"little"`
Pad2octets uint16 `struc:"little"`
}
func (*ShareCapability) Type() CapsType {
return CAPSTYPE_SHARE
}
type MultiFragmentUpdate struct {
// 1a00080000000000
MaxRequestSize uint32 `struc:"little"`
}
func (*MultiFragmentUpdate) Type() CapsType {
return CAPSETTYPE_MULTIFRAGMENTUPDATE
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpegdi/52635737-d144-4f47-9c88-b48ceaf3efb4
type DrawGDIPlusCapability struct {
SupportLevel uint32
GdipVersion uint32
CacheLevel uint32
GdipCacheEntries [10]byte
GdipCacheChunkSize [8]byte
GdipImageCacheProperties [6]byte
}
func (*DrawGDIPlusCapability) Type() CapsType {
return CAPSTYPE_DRAWGDIPLUS
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/86507fed-a0ee-4242-b802-237534a8f65e
type BitmapCodec struct {
GUID [16]byte
ID uint8
PropertiesLength uint16 `struc:"little,sizeof=Properties"`
Properties []byte
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/408b1878-9f6e-4106-8329-1af42219ba6a
type BitmapCodecS struct {
Count uint8 `struc:"sizeof=Array"`
Array []BitmapCodec
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/17e80f50-d163-49de-a23b-fd6456aa472f
type BitmapCodecsCapability struct {
SupportedBitmapCodecs BitmapCodecS // A variable-length field containing a TS_BITMAPCODECS structure (section 2.2.7.2.10.1).
}
func (*BitmapCodecsCapability) Type() CapsType {
return CAPSETTYPE_BITMAP_CODECS
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/fc05c385-46c3-42cb-9ed2-c475a3990e0b
type BitmapCacheHostSupportCapability struct {
CacheVersion uint8
Pad1 uint8
Pad2 uint16
}
func (*BitmapCacheHostSupportCapability) Type() CapsType {
return CAPSTYPE_BITMAPCACHE_HOSTSUPPORT
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/41323437-c753-460e-8108-495a6fdd68a8
type LargePointerCapability struct {
SupportFlags uint16 `struc:"little"`
}
func (*LargePointerCapability) Type() CapsType {
return CAPSETTYPE_LARGE_POINTER
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdperp/36a25e21-25e1-4954-aae8-09aaf6715c79
type RemoteProgramsCapability struct {
RailSupportLevel uint32 `struc:"little"`
}
func (*RemoteProgramsCapability) Type() CapsType {
return CAPSTYPE_RAIL
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdperp/82ec7a69-f7e3-4294-830d-666178b35d15
type WindowListCapability struct {
WndSupportLevel uint32 `struc:"little"`
NumIconCaches uint8
NumIconCacheEntries uint16 `struc:"little"`
}
func (*WindowListCapability) Type() CapsType {
return CAPSTYPE_WINDOW
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/9132002f-f133-4a0f-ba2f-2dc48f1e7f93
type DesktopCompositionCapability struct {
CompDeskSupportLevel uint16 `struc:"little"`
}
func (*DesktopCompositionCapability) Type() CapsType {
return CAPSETTYPE_COMPDESK
}
// see https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-rdpbcgr/aa953018-c0a8-4761-bb12-86586c2cd56a
type SurfaceCommandsCapability struct {
CmdFlags uint32 `struc:"little"`
Reserved uint32 `struc:"little"`
}
func (*SurfaceCommandsCapability) Type() CapsType {
return CAPSETTYPE_SURFACE_COMMANDS
}
type FrameAcknowledgeCapability struct {
FrameCount uint32 `struc:"little"`
}
func (*FrameAcknowledgeCapability) Type() CapsType {
return CAPSSETTYPE_FRAME_ACKNOWLEDGE
}
type DrawNineGridCapability struct {
SupportLevel uint32 `struc:"little"`
CacheSize uint16 `struc:"little"`
CacheEntries uint16 `struc:"little"`
}
func (*DrawNineGridCapability) Type() CapsType {
return CAPSTYPE_DRAWNINEGRIDCACHE
}
func readCapability(r io.Reader) (Capability, error) {
capType, err := core.ReadUint16LE(r)
if err != nil {
return nil, err
}
capLen, err := core.ReadUint16LE(r)
if err != nil {
return nil, err
}
if int(capLen)-4 <= 0 {
return nil, errors.New(fmt.Sprintf("Capability length expected %d", capLen))
}
capBytes, err := core.ReadBytes(int(capLen)-4, r)
if err != nil {
return nil, err
}
capReader := bytes.NewReader(capBytes)
var c Capability
glog.Debugf("Capability type 0x%04x", capType)
switch CapsType(capType) {
case CAPSTYPE_GENERAL:
c = &GeneralCapability{}
case CAPSTYPE_BITMAP:
c = &BitmapCapability{}
case CAPSTYPE_ORDER:
c = &OrderCapability{}
case CAPSTYPE_BITMAPCACHE:
c = &BitmapCacheCapability{}
case CAPSTYPE_POINTER:
c = &PointerCapability{}
case CAPSTYPE_INPUT:
c = &InputCapability{}
case CAPSTYPE_BRUSH:
c = &BrushCapability{}
case CAPSTYPE_GLYPHCACHE:
c = &GlyphCapability{}
case CAPSTYPE_OFFSCREENCACHE:
c = &OffscreenBitmapCacheCapability{}
case CAPSTYPE_VIRTUALCHANNEL:
c = &VirtualChannelCapability{}
case CAPSTYPE_SOUND:
c = &SoundCapability{}
case CAPSTYPE_CONTROL:
c = &ControlCapability{}
case CAPSTYPE_ACTIVATION:
c = &WindowActivationCapability{}
case CAPSTYPE_FONT:
c = &FontCapability{}
case CAPSTYPE_COLORCACHE:
c = &ColorCacheCapability{}
case CAPSTYPE_SHARE:
c = &ShareCapability{}
case CAPSETTYPE_MULTIFRAGMENTUPDATE:
c = &MultiFragmentUpdate{}
case CAPSTYPE_DRAWGDIPLUS:
c = &DrawGDIPlusCapability{}
case CAPSETTYPE_BITMAP_CODECS:
c = &BitmapCodecsCapability{}
case CAPSTYPE_BITMAPCACHE_HOSTSUPPORT:
c = &BitmapCacheHostSupportCapability{}
case CAPSETTYPE_LARGE_POINTER:
c = &LargePointerCapability{}
case CAPSTYPE_RAIL:
c = &RemoteProgramsCapability{}
case CAPSTYPE_WINDOW:
c = &WindowListCapability{}
case CAPSETTYPE_COMPDESK:
c = &DesktopCompositionCapability{}
case CAPSETTYPE_SURFACE_COMMANDS:
c = &SurfaceCommandsCapability{}
case CAPSSETTYPE_FRAME_ACKNOWLEDGE:
c = &FrameAcknowledgeCapability{}
default:
err := errors.New(fmt.Sprintf("unsupported Capability type 0x%04x", capType))
glog.Error(err)
return nil, err
}
if err := struc.Unpack(capReader, c); err != nil {
glog.Error("Capability unpack error", err, fmt.Sprintf("0x%04x", capType), hex.EncodeToString(capBytes))
return nil, err
}
glog.Debugf("Capability<%s>: %+v", c.Type(), c)
return c, nil
}
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package pdu
/* Binary Raster Operations (ROP2) */
const (
GDI_R2_BLACK = 0x01
GDI_R2_NOTMERGEPEN = 0x02
GDI_R2_MASKNOTPEN = 0x03
GDI_R2_NOTCOPYPEN = 0x04
GDI_R2_MASKPENNOT = 0x05
GDI_R2_NOT = 0x06
GDI_R2_XORPEN = 0x07
GDI_R2_NOTMASKPEN = 0x08
GDI_R2_MASKPEN = 0x09
GDI_R2_NOTXORPEN = 0x0A
GDI_R2_NOP = 0x0B
GDI_R2_MERGENOTPEN = 0x0C
GDI_R2_COPYPEN = 0x0D
GDI_R2_MERGEPENNOT = 0x0E
GDI_R2_MERGEPEN = 0x0F
GDI_R2_WHITE = 0x10
)
/* Ternary Raster Operations (ROP3) */
const (
GDI_BLACKNESS = 0x00000042
GDI_DPSoon = 0x00010289
GDI_DPSona = 0x00020C89
GDI_PSon = 0x000300AA
GDI_SDPona = 0x00040C88
GDI_DPon = 0x000500A9
GDI_PDSxnon = 0x00060865
GDI_PDSaon = 0x000702C5
GDI_SDPnaa = 0x00080F08
GDI_PDSxon = 0x00090245
GDI_DPna = 0x000A0329
GDI_PSDnaon = 0x000B0B2A
GDI_SPna = 0x000C0324
GDI_PDSnaon = 0x000D0B25
GDI_PDSonon = 0x000E08A5
GDI_Pn = 0x000F0001
GDI_PDSona = 0x00100C85
GDI_NOTSRCERASE = 0x001100A6
GDI_SDPxnon = 0x00120868
GDI_SDPaon = 0x001302C8
GDI_DPSxnon = 0x00140869
GDI_DPSaon = 0x001502C9
GDI_PSDPSanaxx = 0x00165CCA
GDI_SSPxDSxaxn = 0x00171D54
GDI_SPxPDxa = 0x00180D59
GDI_SDPSanaxn = 0x00191CC8
GDI_PDSPaox = 0x001A06C5
GDI_SDPSxaxn = 0x001B0768
GDI_PSDPaox = 0x001C06CA
GDI_DSPDxaxn = 0x001D0766
GDI_PDSox = 0x001E01A5
GDI_PDSoan = 0x001F0385
GDI_DPSnaa = 0x00200F09
GDI_SDPxon = 0x00210248
GDI_DSna = 0x00220326
GDI_SPDnaon = 0x00230B24
GDI_SPxDSxa = 0x00240D55
GDI_PDSPanaxn = 0x00251CC5
GDI_SDPSaox = 0x002606C8
GDI_SDPSxnox = 0x00271868
GDI_DPSxa = 0x00280369
GDI_PSDPSaoxxn = 0x002916CA
GDI_DPSana = 0x002A0CC9
GDI_SSPxPDxaxn = 0x002B1D58
GDI_SPDSoax = 0x002C0784
GDI_PSDnox = 0x002D060A
GDI_PSDPxox = 0x002E064A
GDI_PSDnoan = 0x002F0E2A
GDI_PSna = 0x0030032A
GDI_SDPnaon = 0x00310B28
GDI_SDPSoox = 0x00320688
GDI_NOTSRCCOPY = 0x00330008
GDI_SPDSaox = 0x003406C4
GDI_SPDSxnox = 0x00351864
GDI_SDPox = 0x003601A8
GDI_SDPoan = 0x00370388
GDI_PSDPoax = 0x0038078A
GDI_SPDnox = 0x00390604
GDI_SPDSxox = 0x003A0644
GDI_SPDnoan = 0x003B0E24
GDI_PSx = 0x003C004A
GDI_SPDSonox = 0x003D18A4
GDI_SPDSnaox = 0x003E1B24
GDI_PSan = 0x003F00EA
GDI_PSDnaa = 0x00400F0A
GDI_DPSxon = 0x00410249
GDI_SDxPDxa = 0x00420D5D
GDI_SPDSanaxn = 0x00431CC4
GDI_SRCERASE = 0x00440328
GDI_DPSnaon = 0x00450B29
GDI_DSPDaox = 0x004606C6
GDI_PSDPxaxn = 0x0047076A
GDI_SDPxa = 0x00480368
GDI_PDSPDaoxxn = 0x004916C5
GDI_DPSDoax = 0x004A0789
GDI_PDSnox = 0x004B0605
GDI_SDPana = 0x004C0CC8
GDI_SSPxDSxoxn = 0x004D1954
GDI_PDSPxox = 0x004E0645
GDI_PDSnoan = 0x004F0E25
GDI_PDna = 0x00500325
GDI_DSPnaon = 0x00510B26
GDI_DPSDaox = 0x005206C9
GDI_SPDSxaxn = 0x00530764
GDI_DPSonon = 0x005408A9
GDI_DSTINVERT = 0x00550009
GDI_DPSox = 0x005601A9
GDI_DPSoan = 0x00570389
GDI_PDSPoax = 0x00580785
GDI_DPSnox = 0x00590609
GDI_PATINVERT = 0x005A0049
GDI_DPSDonox = 0x005B18A9
GDI_DPSDxox = 0x005C0649
GDI_DPSnoan = 0x005D0E29
GDI_DPSDnaox = 0x005E1B29
GDI_DPan = 0x005F00E9
GDI_PDSxa = 0x00600365
GDI_DSPDSaoxxn = 0x006116C6
GDI_DSPDoax = 0x00620786
GDI_SDPnox = 0x00630608
GDI_SDPSoax = 0x00640788
GDI_DSPnox = 0x00650606
GDI_SRCINVERT = 0x00660046
GDI_SDPSonox = 0x006718A8
GDI_DSPDSonoxxn = 0x006858A6
GDI_PDSxxn = 0x00690145
GDI_DPSax = 0x006A01E9
GDI_PSDPSoaxxn = 0x006B178A
GDI_SDPax = 0x006C01E8
GDI_PDSPDoaxxn = 0x006D1785
GDI_SDPSnoax = 0x006E1E28
GDI_PDSxnan = 0x006F0C65
GDI_PDSana = 0x00700CC5
GDI_SSDxPDxaxn = 0x00711D5C
GDI_SDPSxox = 0x00720648
GDI_SDPnoan = 0x00730E28
GDI_DSPDxox = 0x00740646
GDI_DSPnoan = 0x00750E26
GDI_SDPSnaox = 0x00761B28
GDI_DSan = 0x007700E6
GDI_PDSax = 0x007801E5
GDI_DSPDSoaxxn = 0x00791786
GDI_DPSDnoax = 0x007A1E29
GDI_SDPxnan = 0x007B0C68
GDI_SPDSnoax = 0x007C1E24
GDI_DPSxnan = 0x007D0C69
GDI_SPxDSxo = 0x007E0955
GDI_DPSaan = 0x007F03C9
GDI_DPSaa = 0x008003E9
GDI_SPxDSxon = 0x00810975
GDI_DPSxna = 0x00820C49
GDI_SPDSnoaxn = 0x00831E04
GDI_SDPxna = 0x00840C48
GDI_PDSPnoaxn = 0x00851E05
GDI_DSPDSoaxx = 0x008617A6
GDI_PDSaxn = 0x008701C5
GDI_SRCAND = 0x008800C6
GDI_SDPSnaoxn = 0x00891B08
GDI_DSPnoa = 0x008A0E06
GDI_DSPDxoxn = 0x008B0666
GDI_SDPnoa = 0x008C0E08
GDI_SDPSxoxn = 0x008D0668
GDI_SSDxPDxax = 0x008E1D7C
GDI_PDSanan = 0x008F0CE5
GDI_PDSxna = 0x00900C45
GDI_SDPSnoaxn = 0x00911E08
GDI_DPSDPoaxx = 0x009217A9
GDI_SPDaxn = 0x009301C4
GDI_PSDPSoaxx = 0x009417AA
GDI_DPSaxn = 0x009501C9
GDI_DPSxx = 0x00960169
GDI_PSDPSonoxx = 0x0097588A
GDI_SDPSonoxn = 0x00981888
GDI_DSxn = 0x00990066
GDI_DPSnax = 0x009A0709
GDI_SDPSoaxn = 0x009B07A8
GDI_SPDnax = 0x009C0704
GDI_DSPDoaxn = 0x009D07A6
GDI_DSPDSaoxx = 0x009E16E6
GDI_PDSxan = 0x009F0345
GDI_DPa = 0x00A000C9
GDI_PDSPnaoxn = 0x00A11B05
GDI_DPSnoa = 0x00A20E09
GDI_DPSDxoxn = 0x00A30669
GDI_PDSPonoxn = 0x00A41885
GDI_PDxn = 0x00A50065
GDI_DSPnax = 0x00A60706
GDI_PDSPoaxn = 0x00A707A5
GDI_DPSoa = 0x00A803A9
GDI_DPSoxn = 0x00A90189
GDI_DSTCOPY = 0x00AA0029
GDI_DPSono = 0x00AB0889
GDI_SPDSxax = 0x00AC0744
GDI_DPSDaoxn = 0x00AD06E9
GDI_DSPnao = 0x00AE0B06
GDI_DPno = 0x00AF0229
GDI_PDSnoa = 0x00B00E05
GDI_PDSPxoxn = 0x00B10665
GDI_SSPxDSxox = 0x00B21974
GDI_SDPanan = 0x00B30CE8
GDI_PSDnax = 0x00B4070A
GDI_DPSDoaxn = 0x00B507A9
GDI_DPSDPaoxx = 0x00B616E9
GDI_SDPxan = 0x00B70348
GDI_PSDPxax = 0x00B8074A
GDI_DSPDaoxn = 0x00B906E6
GDI_DPSnao = 0x00BA0B09
GDI_MERGEPAINT = 0x00BB0226
GDI_SPDSanax = 0x00BC1CE4
GDI_SDxPDxan = 0x00BD0D7D
GDI_DPSxo = 0x00BE0269
GDI_DPSano = 0x00BF08C9
GDI_MERGECOPY = 0x00C000CA
GDI_SPDSnaoxn = 0x00C11B04
GDI_SPDSonoxn = 0x00C21884
GDI_PSxn = 0x00C3006A
GDI_SPDnoa = 0x00C40E04
GDI_SPDSxoxn = 0x00C50664
GDI_SDPnax = 0x00C60708
GDI_PSDPoaxn = 0x00C707AA
GDI_SDPoa = 0x00C803A8
GDI_SPDoxn = 0x00C90184
GDI_DPSDxax = 0x00CA0749
GDI_SPDSaoxn = 0x00CB06E4
GDI_SRCCOPY = 0x00CC0020
GDI_SDPono = 0x00CD0888
GDI_SDPnao = 0x00CE0B08
GDI_SPno = 0x00CF0224
GDI_PSDnoa = 0x00D00E0A
GDI_PSDPxoxn = 0x00D1066A
GDI_PDSnax = 0x00D20705
GDI_SPDSoaxn = 0x00D307A4
GDI_SSPxPDxax = 0x00D41D78
GDI_DPSanan = 0x00D50CE9
GDI_PSDPSaoxx = 0x00D616EA
GDI_DPSxan = 0x00D70349
GDI_PDSPxax = 0x00D80745
GDI_SDPSaoxn = 0x00D906E8
GDI_DPSDanax = 0x00DA1CE9
GDI_SPxDSxan = 0x00DB0D75
GDI_SPDnao = 0x00DC0B04
GDI_SDno = 0x00DD0228
GDI_SDPxo = 0x00DE0268
GDI_SDPano = 0x00DF08C8
GDI_PDSoa = 0x00E003A5
GDI_PDSoxn = 0x00E10185
GDI_DSPDxax = 0x00E20746
GDI_PSDPaoxn = 0x00E306EA
GDI_SDPSxax = 0x00E40748
GDI_PDSPaoxn = 0x00E506E5
GDI_SDPSanax = 0x00E61CE8
GDI_SPxPDxan = 0x00E70D79
GDI_SSPxDSxax = 0x00E81D74
GDI_DSPDSanaxxn = 0x00E95CE6
GDI_DPSao = 0x00EA02E9
GDI_DPSxno = 0x00EB0849
GDI_SDPao = 0x00EC02E8
GDI_SDPxno = 0x00ED0848
GDI_SRCPAINT = 0x00EE0086
GDI_SDPnoo = 0x00EF0A08
GDI_PATCOPY = 0x00F00021
GDI_PDSono = 0x00F10885
GDI_PDSnao = 0x00F20B05
GDI_PSno = 0x00F3022A
GDI_PSDnao = 0x00F40B0A
GDI_PDno = 0x00F50225
GDI_PDSxo = 0x00F60265
GDI_PDSano = 0x00F708C5
GDI_PDSao = 0x00F802E5
GDI_PDSxno = 0x00F90845
GDI_DPo = 0x00FA0089
GDI_PATPAINT = 0x00FB0A09
GDI_PSo = 0x00FC008A
GDI_PSDnoo = 0x00FD0A0A
GDI_DPSoo = 0x00FE02A9
GDI_WHITENESS = 0x00FF0062
GDI_GLYPH_ORDER = 0xFFFFFFFF
)
var Rop3CodeTable = map[int]string{
GDI_BLACKNESS: "0",
GDI_DPSoon: "DPSoon",
GDI_DPSona: "DPSona",
GDI_PSon: "PSon",
GDI_SDPona: "SDPona",
GDI_DPon: "DPon",
GDI_PDSxnon: "PDSxnon",
GDI_PDSaon: "PDSaon",
GDI_SDPnaa: "SDPnaa",
GDI_PDSxon: "PDSxon",
GDI_DPna: "DPna",
GDI_PSDnaon: "PSDnaon",
GDI_SPna: "SPna",
GDI_PDSnaon: "PDSnaon",
GDI_PDSonon: "PDSonon",
GDI_Pn: "Pn",
GDI_PDSona: "PDSona",
GDI_NOTSRCERASE: "DSon",
GDI_SDPxnon: "SDPxnon",
GDI_SDPaon: "SDPaon",
GDI_DPSxnon: "DPSxnon",
GDI_DPSaon: "DPSaon",
GDI_PSDPSanaxx: "PSDPSanaxx",
GDI_SSPxDSxaxn: "SSPxDSxaxn",
GDI_SPxPDxa: "SPxPDxa",
GDI_SDPSanaxn: "SDPSanaxn",
GDI_PDSPaox: "PDSPaox",
GDI_SDPSxaxn: "SDPSxaxn",
GDI_PSDPaox: "PSDPaox",
GDI_DSPDxaxn: "DSPDxaxn",
GDI_PDSox: "PDSox",
GDI_PDSoan: "PDSoan",
GDI_DPSnaa: "DPSnaa",
GDI_SDPxon: "SDPxon",
GDI_DSna: "DSna",
GDI_SPDnaon: "SPDnaon",
GDI_SPxDSxa: "SPxDSxa",
GDI_PDSPanaxn: "PDSPanaxn",
GDI_SDPSaox: "SDPSaox",
GDI_SDPSxnox: "SDPSxnox",
GDI_DPSxa: "DPSxa",
GDI_PSDPSaoxxn: "PSDPSaoxxn",
GDI_DPSana: "DPSana",
GDI_SSPxPDxaxn: "SSPxPDxaxn",
GDI_SPDSoax: "SPDSoax",
GDI_PSDnox: "PSDnox",
GDI_PSDPxox: "PSDPxox",
GDI_PSDnoan: "PSDnoan",
GDI_PSna: "PSna",
GDI_SDPnaon: "SDPnaon",
GDI_SDPSoox: "SDPSoox",
GDI_NOTSRCCOPY: "Sn",
GDI_SPDSaox: "SPDSaox",
GDI_SPDSxnox: "SPDSxnox",
GDI_SDPox: "SDPox",
GDI_SDPoan: "SDPoan",
GDI_PSDPoax: "PSDPoax",
GDI_SPDnox: "SPDnox",
GDI_SPDSxox: "SPDSxox",
GDI_SPDnoan: "SPDnoan",
GDI_PSx: "PSx",
GDI_SPDSonox: "SPDSonox",
GDI_SPDSnaox: "SPDSnaox",
GDI_PSan: "PSan",
GDI_PSDnaa: "PSDnaa",
GDI_DPSxon: "DPSxon",
GDI_SDxPDxa: "SDxPDxa",
GDI_SPDSanaxn: "SPDSanaxn",
GDI_SRCERASE: "SDna",
GDI_DPSnaon: "DPSnaon",
GDI_DSPDaox: "DSPDaox",
GDI_PSDPxaxn: "PSDPxaxn",
GDI_SDPxa: "SDPxa",
GDI_PDSPDaoxxn: "PDSPDaoxxn",
GDI_DPSDoax: "DPSDoax",
GDI_PDSnox: "PDSnox",
GDI_SDPana: "SDPana",
GDI_SSPxDSxoxn: "SSPxDSxoxn",
GDI_PDSPxox: "PDSPxox",
GDI_PDSnoan: "PDSnoan",
GDI_PDna: "PDna",
GDI_DSPnaon: "DSPnaon",
GDI_DPSDaox: "DPSDaox",
GDI_SPDSxaxn: "SPDSxaxn",
GDI_DPSonon: "DPSonon",
GDI_DSTINVERT: "Dn",
GDI_DPSox: "DPSox",
GDI_DPSoan: "DPSoan",
GDI_PDSPoax: "PDSPoax",
GDI_DPSnox: "DPSnox",
GDI_PATINVERT: "DPx",
GDI_DPSDonox: "DPSDonox",
GDI_DPSDxox: "DPSDxox",
GDI_DPSnoan: "DPSnoan",
GDI_DPSDnaox: "DPSDnaox",
GDI_DPan: "DPan",
GDI_PDSxa: "PDSxa",
GDI_DSPDSaoxxn: "DSPDSaoxxn",
GDI_DSPDoax: "DSPDoax",
GDI_SDPnox: "SDPnox",
GDI_SDPSoax: "SDPSoax",
GDI_DSPnox: "DSPnox",
GDI_SRCINVERT: "DSx",
GDI_SDPSonox: "SDPSonox",
GDI_DSPDSonoxxn: "DSPDSonoxxn",
GDI_PDSxxn: "PDSxxn",
GDI_DPSax: "DPSax",
GDI_PSDPSoaxxn: "PSDPSoaxxn",
GDI_SDPax: "SDPax",
GDI_PDSPDoaxxn: "PDSPDoaxxn",
GDI_SDPSnoax: "SDPSnoax",
GDI_PDSxnan: "PDSxnan",
GDI_PDSana: "PDSana",
GDI_SSDxPDxaxn: "SSDxPDxaxn",
GDI_SDPSxox: "SDPSxox",
GDI_SDPnoan: "SDPnoan",
GDI_DSPDxox: "DSPDxox",
GDI_DSPnoan: "DSPnoan",
GDI_SDPSnaox: "SDPSnaox",
GDI_DSan: "DSan",
GDI_PDSax: "PDSax",
GDI_DSPDSoaxxn: "DSPDSoaxxn",
GDI_DPSDnoax: "DPSDnoax",
GDI_SDPxnan: "SDPxnan",
GDI_SPDSnoax: "SPDSnoax",
GDI_DPSxnan: "DPSxnan",
GDI_SPxDSxo: "SPxDSxo",
GDI_DPSaan: "DPSaan",
GDI_DPSaa: "DPSaa",
GDI_SPxDSxon: "SPxDSxon",
GDI_DPSxna: "DPSxna",
GDI_SPDSnoaxn: "SPDSnoaxn",
GDI_SDPxna: "SDPxna",
GDI_PDSPnoaxn: "PDSPnoaxn",
GDI_DSPDSoaxx: "DSPDSoaxx",
GDI_PDSaxn: "PDSaxn",
GDI_SRCAND: "DSa",
GDI_SDPSnaoxn: "SDPSnaoxn",
GDI_DSPnoa: "DSPnoa",
GDI_DSPDxoxn: "DSPDxoxn",
GDI_SDPnoa: "SDPnoa",
GDI_SDPSxoxn: "SDPSxoxn",
GDI_SSDxPDxax: "SSDxPDxax",
GDI_PDSanan: "PDSanan",
GDI_PDSxna: "PDSxna",
GDI_SDPSnoaxn: "SDPSnoaxn",
GDI_DPSDPoaxx: "DPSDPoaxx",
GDI_SPDaxn: "SPDaxn",
GDI_PSDPSoaxx: "PSDPSoaxx",
GDI_DPSaxn: "DPSaxn",
GDI_DPSxx: "DPSxx",
GDI_PSDPSonoxx: "PSDPSonoxx",
GDI_SDPSonoxn: "SDPSonoxn",
GDI_DSxn: "DSxn",
GDI_DPSnax: "DPSnax",
GDI_SDPSoaxn: "SDPSoaxn",
GDI_SPDnax: "SPDnax",
GDI_DSPDoaxn: "DSPDoaxn",
GDI_DSPDSaoxx: "DSPDSaoxx",
GDI_PDSxan: "PDSxan",
GDI_DPa: "DPa",
GDI_PDSPnaoxn: "PDSPnaoxn",
GDI_DPSnoa: "DPSnoa",
GDI_DPSDxoxn: "DPSDxoxn",
GDI_PDSPonoxn: "PDSPonoxn",
GDI_PDxn: "PDxn",
GDI_DSPnax: "DSPnax",
GDI_PDSPoaxn: "PDSPoaxn",
GDI_DPSoa: "DPSoa",
GDI_DPSoxn: "DPSoxn",
GDI_DSTCOPY: "D",
GDI_DPSono: "DPSono",
GDI_SPDSxax: "SPDSxax",
GDI_DPSDaoxn: "DPSDaoxn",
GDI_DSPnao: "DSPnao",
GDI_DPno: "DPno",
GDI_PDSnoa: "PDSnoa",
GDI_PDSPxoxn: "PDSPxoxn",
GDI_SSPxDSxox: "SSPxDSxox",
GDI_SDPanan: "SDPanan",
GDI_PSDnax: "PSDnax",
GDI_DPSDoaxn: "DPSDoaxn",
GDI_DPSDPaoxx: "DPSDPaoxx",
GDI_SDPxan: "SDPxan",
GDI_PSDPxax: "PSDPxax",
GDI_DSPDaoxn: "DSPDaoxn",
GDI_DPSnao: "DPSnao",
GDI_MERGEPAINT: "DSno",
GDI_SPDSanax: "SPDSanax",
GDI_SDxPDxan: "SDxPDxan",
GDI_DPSxo: "DPSxo",
GDI_DPSano: "DPSano",
GDI_MERGECOPY: "PSa",
GDI_SPDSnaoxn: "SPDSnaoxn",
GDI_SPDSonoxn: "SPDSonoxn",
GDI_PSxn: "PSxn",
GDI_SPDnoa: "SPDnoa",
GDI_SPDSxoxn: "SPDSxoxn",
GDI_SDPnax: "SDPnax",
GDI_PSDPoaxn: "PSDPoaxn",
GDI_SDPoa: "SDPoa",
GDI_SPDoxn: "SPDoxn",
GDI_DPSDxax: "DPSDxax",
GDI_SPDSaoxn: "SPDSaoxn",
GDI_SRCCOPY: "S",
GDI_SDPono: "SDPono",
GDI_SDPnao: "SDPnao",
GDI_SPno: "SPno",
GDI_PSDnoa: "PSDnoa",
GDI_PSDPxoxn: "PSDPxoxn",
GDI_PDSnax: "PDSnax",
GDI_SPDSoaxn: "SPDSoaxn",
GDI_SSPxPDxax: "SSPxPDxax",
GDI_DPSanan: "DPSanan",
GDI_PSDPSaoxx: "PSDPSaoxx",
GDI_DPSxan: "DPSxan",
GDI_PDSPxax: "PDSPxax",
GDI_SDPSaoxn: "SDPSaoxn",
GDI_DPSDanax: "DPSDanax",
GDI_SPxDSxan: "SPxDSxan",
GDI_SPDnao: "SPDnao",
GDI_SDno: "SDno",
GDI_SDPxo: "SDPxo",
GDI_SDPano: "SDPano",
GDI_PDSoa: "PDSoa",
GDI_PDSoxn: "PDSoxn",
GDI_DSPDxax: "DSPDxax",
GDI_PSDPaoxn: "PSDPaoxn",
GDI_SDPSxax: "SDPSxax",
GDI_PDSPaoxn: "PDSPaoxn",
GDI_SDPSanax: "SDPSanax",
GDI_SPxPDxan: "SPxPDxan",
GDI_SSPxDSxax: "SSPxDSxax",
GDI_DSPDSanaxxn: "DSPDSanaxxn",
GDI_DPSao: "DPSao",
GDI_DPSxno: "DPSxno",
GDI_SDPao: "SDPao",
GDI_SDPxno: "SDPxno",
GDI_SRCPAINT: "DSo",
GDI_SDPnoo: "SDPnoo",
GDI_PATCOPY: "P",
GDI_PDSono: "PDSono",
GDI_PDSnao: "PDSnao",
GDI_PSno: "PSno",
GDI_PSDnao: "PSDnao",
GDI_PDno: "PDno",
GDI_PDSxo: "PDSxo",
GDI_PDSano: "PDSano",
GDI_PDSao: "PDSao",
GDI_PDSxno: "PDSxno",
GDI_DPo: "DPo",
GDI_PATPAINT: "DPSnoo",
GDI_PSo: "PSo",
GDI_PSDnoo: "PSDnoo",
GDI_DPSoo: "DPSoo",
GDI_WHITENESS: "1",
}
File diff suppressed because it is too large Load Diff
+469
View File
@@ -0,0 +1,469 @@
package pdu
import (
"bytes"
"encoding/hex"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
)
type PDULayer struct {
emission.Emitter
transport core.Transport
sharedId uint32
userId uint16
channelId uint16
serverCapabilities map[CapsType]Capability
clientCapabilities map[CapsType]Capability
fastPathSender core.FastPathSender
demandActivePDU *DemandActivePDU
}
func NewPDULayer(t core.Transport) *PDULayer {
p := &PDULayer{
Emitter: *emission.NewEmitter(),
transport: t,
sharedId: 0x103EA,
serverCapabilities: map[CapsType]Capability{
CAPSTYPE_GENERAL: &GeneralCapability{
ProtocolVersion: 0x0200,
},
CAPSTYPE_BITMAP: &BitmapCapability{
Receive1BitPerPixel: 0x0001,
Receive4BitsPerPixel: 0x0001,
Receive8BitsPerPixel: 0x0001,
BitmapCompressionFlag: 0x0001,
MultipleRectangleSupport: 0x0001,
},
CAPSTYPE_ORDER: &OrderCapability{
DesktopSaveXGranularity: 1,
DesktopSaveYGranularity: 20,
MaximumOrderLevel: 1,
OrderFlags: NEGOTIATEORDERSUPPORT,
DesktopSaveSize: 480 * 480,
},
CAPSTYPE_POINTER: &PointerCapability{ColorPointerCacheSize: 20},
CAPSTYPE_INPUT: &InputCapability{},
CAPSTYPE_VIRTUALCHANNEL: &VirtualChannelCapability{},
CAPSTYPE_FONT: &FontCapability{SupportFlags: 0x0001},
CAPSTYPE_COLORCACHE: &ColorCacheCapability{CacheSize: 0x0006},
CAPSTYPE_SHARE: &ShareCapability{},
},
clientCapabilities: map[CapsType]Capability{
CAPSTYPE_GENERAL: &GeneralCapability{
ProtocolVersion: 0x0200,
},
CAPSTYPE_BITMAP: &BitmapCapability{
Receive1BitPerPixel: 0x0001,
Receive4BitsPerPixel: 0x0001,
Receive8BitsPerPixel: 0x0001,
BitmapCompressionFlag: 0x0001,
MultipleRectangleSupport: 0x0001,
},
CAPSTYPE_ORDER: &OrderCapability{
DesktopSaveXGranularity: 1,
DesktopSaveYGranularity: 20,
MaximumOrderLevel: 1,
OrderFlags: NEGOTIATEORDERSUPPORT,
DesktopSaveSize: 480 * 480,
TextANSICodePage: 0x4e4,
},
CAPSTYPE_CONTROL: &ControlCapability{0, 0, 2, 2},
CAPSTYPE_ACTIVATION: &WindowActivationCapability{},
CAPSTYPE_POINTER: &PointerCapability{1, 20, 20},
CAPSTYPE_SHARE: &ShareCapability{},
CAPSTYPE_COLORCACHE: &ColorCacheCapability{6, 0},
CAPSTYPE_SOUND: &SoundCapability{0x0001, 0},
CAPSTYPE_INPUT: &InputCapability{},
CAPSTYPE_FONT: &FontCapability{0x0001, 0},
CAPSTYPE_BRUSH: &BrushCapability{BRUSH_COLOR_8x8},
CAPSTYPE_GLYPHCACHE: &GlyphCapability{},
CAPSETTYPE_BITMAP_CODECS: &BitmapCodecsCapability{},
CAPSTYPE_BITMAPCACHE_REV2: &BitmapCache2Capability{
BitmapCachePersist: 2,
CachesNum: 5,
BmpC0Cells: 0x258,
BmpC1Cells: 0x258,
BmpC2Cells: 0x800,
BmpC3Cells: 0x1000,
BmpC4Cells: 0x800,
},
CAPSTYPE_VIRTUALCHANNEL: &VirtualChannelCapability{0, 1600},
CAPSETTYPE_MULTIFRAGMENTUPDATE: &MultiFragmentUpdate{65535},
CAPSTYPE_RAIL: &RemoteProgramsCapability{
RailSupportLevel: RAIL_LEVEL_SUPPORTED |
RAIL_LEVEL_SHELL_INTEGRATION_SUPPORTED |
RAIL_LEVEL_LANGUAGE_IME_SYNC_SUPPORTED |
RAIL_LEVEL_SERVER_TO_CLIENT_IME_SYNC_SUPPORTED |
RAIL_LEVEL_HIDE_MINIMIZED_APPS_SUPPORTED |
RAIL_LEVEL_WINDOW_CLOAKING_SUPPORTED |
RAIL_LEVEL_HANDSHAKE_EX_SUPPORTED |
RAIL_LEVEL_DOCKED_LANGBAR_SUPPORTED,
},
CAPSETTYPE_LARGE_POINTER: &LargePointerCapability{1},
CAPSETTYPE_SURFACE_COMMANDS: &SurfaceCommandsCapability{
CmdFlags: SURFCMDS_SET_SURFACE_BITS | SURFCMDS_STREAM_SURFACE_BITS | SURFCMDS_FRAME_MARKER,
},
CAPSSETTYPE_FRAME_ACKNOWLEDGE: &FrameAcknowledgeCapability{2},
},
}
t.On("close", func() {
p.Emit("close")
}).On("error", func(err error) {
p.Emit("error", err)
})
return p
}
func (p *PDULayer) sendPDU(message PDUMessage) {
pdu := NewPDU(p.userId, message)
p.transport.Write(pdu.serialize())
}
func (p *PDULayer) sendDataPDU(message DataPDUData) {
dataPdu := NewDataPDU(message, p.sharedId)
p.sendPDU(dataPdu)
}
func (p *PDULayer) SetFastPathSender(f core.FastPathSender) {
p.fastPathSender = f
}
type Client struct {
*PDULayer
clientCoreData *gcc.ClientCoreData
buff *bytes.Buffer
}
func NewClient(t core.Transport) *Client {
c := &Client{
PDULayer: NewPDULayer(t),
buff: &bytes.Buffer{},
}
c.transport.Once("connect", c.connect)
return c
}
func (c *Client) connect(data *gcc.ClientCoreData, userId uint16, channelId uint16) {
glog.Debug("pdu connect:", userId, ",", channelId)
c.clientCoreData = data
c.userId = userId
c.channelId = channelId
c.transport.Once("data", c.recvDemandActivePDU)
}
func (c *Client) recvDemandActivePDU(s []byte) {
glog.Trace("PDU recvDemandActivePDU", hex.EncodeToString(s))
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
if pdu.ShareCtrlHeader.PDUType != PDUTYPE_DEMANDACTIVEPDU {
glog.Info("PDU ignore message during connection sequence, type is", pdu.ShareCtrlHeader.PDUType)
c.transport.Once("data", c.recvDemandActivePDU)
return
}
c.sharedId = pdu.Message.(*DemandActivePDU).SharedId
c.demandActivePDU = pdu.Message.(*DemandActivePDU)
for _, caps := range c.demandActivePDU.CapabilitySets {
glog.Debugf("serverCapabilities<%s>: %+v", caps.Type(), caps)
c.serverCapabilities[caps.Type()] = caps
}
c.sendConfirmActivePDU()
c.sendClientFinalizeSynchronizePDU()
c.transport.Once("data", c.recvServerSynchronizePDU)
}
func (c *Client) sendConfirmActivePDU() {
glog.Debug("PDU start sendConfirmActivePDU")
pdu := NewConfirmActivePDU()
generalCapa := c.clientCapabilities[CAPSTYPE_GENERAL].(*GeneralCapability)
generalCapa.OSMajorType = OSMAJORTYPE_WINDOWS
generalCapa.OSMinorType = OSMINORTYPE_WINDOWS_NT
generalCapa.ExtraFlags = LONG_CREDENTIALS_SUPPORTED | NO_BITMAP_COMPRESSION_HDR |
FASTPATH_OUTPUT_SUPPORTED | AUTORECONNECT_SUPPORTED
generalCapa.RefreshRectSupport = 0
generalCapa.SuppressOutputSupport = 0
bitmapCapa := c.clientCapabilities[CAPSTYPE_BITMAP].(*BitmapCapability)
bitmapCapa.PreferredBitsPerPixel = c.clientCoreData.HighColorDepth
bitmapCapa.DesktopWidth = c.clientCoreData.DesktopWidth
bitmapCapa.DesktopHeight = c.clientCoreData.DesktopHeight
bitmapCapa.DesktopResizeFlag = 0x0001
orderCapa := c.clientCapabilities[CAPSTYPE_ORDER].(*OrderCapability)
orderCapa.OrderFlags = NEGOTIATEORDERSUPPORT | ZEROBOUNDSDELTASSUPPORT | COLORINDEXSUPPORT | ORDERFLAGS_EXTRA_FLAGS
orderCapa.OrderSupportExFlags |= ORDERFLAGS_EX_ALTSEC_FRAME_MARKER_SUPPORT
orderCapa.OrderSupport[TS_NEG_DSTBLT_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_PATBLT_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_SCRBLT_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_LINETO_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_MEMBLT_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_MEM3BLT_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_POLYLINE_INDEX] = 1
/*orderCapa.OrderSupport[TS_NEG_MULTIOPAQUERECT_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_GLYPH_INDEX_INDEX] = 1
//orderCapa.OrderSupport[TS_NEG_DRAWNINEGRID_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_SAVEBITMAP_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_POLYGON_SC_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_POLYGON_CB_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_ELLIPSE_SC_INDEX] = 1
orderCapa.OrderSupport[TS_NEG_ELLIPSE_CB_INDEX] = 1*/
orderCapa.OrderSupport[TS_NEG_FAST_GLYPH_INDEX] = 1
inputCapa := c.clientCapabilities[CAPSTYPE_INPUT].(*InputCapability)
inputCapa.Flags = INPUT_FLAG_SCANCODES | INPUT_FLAG_MOUSEX | INPUT_FLAG_UNICODE
inputCapa.KeyboardLayout = c.clientCoreData.KbdLayout
inputCapa.KeyboardType = c.clientCoreData.KeyboardType
inputCapa.KeyboardSubType = c.clientCoreData.KeyboardSubType
inputCapa.KeyboardFunctionKey = c.clientCoreData.KeyboardFnKeys
inputCapa.ImeFileName = c.clientCoreData.ImeFileName
glyphCapa := c.clientCapabilities[CAPSTYPE_GLYPHCACHE].(*GlyphCapability)
/*glyphCapa.GlyphCache[0] = cacheEntry{254, 4}
glyphCapa.GlyphCache[1] = cacheEntry{254, 4}
glyphCapa.GlyphCache[2] = cacheEntry{254, 8}
glyphCapa.GlyphCache[3] = cacheEntry{254, 8}
glyphCapa.GlyphCache[4] = cacheEntry{254, 16}
glyphCapa.GlyphCache[5] = cacheEntry{254, 32}
glyphCapa.GlyphCache[6] = cacheEntry{254, 64}
glyphCapa.GlyphCache[7] = cacheEntry{254, 128}
glyphCapa.GlyphCache[8] = cacheEntry{254, 256}
glyphCapa.GlyphCache[9] = cacheEntry{64, 2048}
glyphCapa.FragCache = 0x01000100*/
glyphCapa.SupportLevel = GLYPH_SUPPORT_NONE
pdu.SharedId = c.sharedId
for _, v := range c.clientCapabilities {
glog.Debugf("clientCapabilities<%s>: %+v", v.Type(), v)
pdu.CapabilitySets = append(pdu.CapabilitySets, v)
}
pdu.NumberCapabilities = uint16(len(pdu.CapabilitySets))
pdu.LengthSourceDescriptor = c.demandActivePDU.LengthSourceDescriptor
pdu.SourceDescriptor = c.demandActivePDU.SourceDescriptor
pdu.LengthCombinedCapabilities = c.demandActivePDU.LengthCombinedCapabilities
c.sendPDU(pdu)
}
func (c *Client) sendClientFinalizeSynchronizePDU() {
glog.Debug("PDU start sendClientFinalizeSynchronizePDU")
c.sendDataPDU(NewSynchronizeDataPDU(c.channelId))
c.sendDataPDU(&ControlDataPDU{Action: CTRLACTION_COOPERATE})
c.sendDataPDU(&ControlDataPDU{Action: CTRLACTION_REQUEST_CONTROL})
//c.sendDataPDU(&PersistKeyPDU{BBitMask: 0x03})
c.sendDataPDU(&FontListDataPDU{ListFlags: 0x0003, EntrySize: 0x0032})
}
func (c *Client) recvServerSynchronizePDU(s []byte) {
glog.Debug("PDU recvServerSynchronizePDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_SYNCHRONIZE {
if ok {
glog.Error("recvServerSynchronizePDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerSynchronizePDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
glog.Infof("%+v", dataPdu)
c.transport.Once("data", c.recvServerSynchronizePDU)
return
}
c.transport.Once("data", c.recvServerControlCooperatePDU)
}
func (c *Client) recvServerControlCooperatePDU(s []byte) {
glog.Debug("PDU recvServerControlCooperatePDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_CONTROL {
if ok {
glog.Error("recvServerControlCooperatePDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerControlCooperatePDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
c.transport.Once("data", c.recvServerControlCooperatePDU)
return
}
glog.Debugf("-------------PDUType2 = %02x\n", dataPdu.Header.PDUType2)
if dataPdu.Header.PDUType2 == PDUTYPE2_SAVE_SESSION_INFO {
c.Emit("success")
}
if dataPdu.Data.(*ControlDataPDU).Action != CTRLACTION_COOPERATE {
glog.Error("recvServerControlCooperatePDU ignore action", dataPdu.Data.(*ControlDataPDU).Action)
c.transport.Once("data", c.recvServerControlCooperatePDU)
return
}
c.transport.Once("data", c.recvServerControlGrantedPDU)
}
func (c *Client) recvServerControlGrantedPDU(s []byte) {
glog.Debug("PDU recvServerControlGrantedPDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_CONTROL {
if ok {
glog.Error("recvServerControlGrantedPDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerControlGrantedPDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
c.transport.Once("data", c.recvServerControlGrantedPDU)
return
}
if dataPdu.Data.(*ControlDataPDU).Action != CTRLACTION_GRANTED_CONTROL {
glog.Error("recvServerControlGrantedPDU ignore action", dataPdu.Data.(*ControlDataPDU).Action)
c.transport.Once("data", c.recvServerControlGrantedPDU)
return
}
c.transport.Once("data", c.recvServerFontMapPDU)
}
func (c *Client) recvServerFontMapPDU(s []byte) {
glog.Debug("PDU recvServerFontMapPDU")
r := bytes.NewReader(s)
pdu, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
dataPdu, ok := pdu.Message.(*DataPDU)
if !ok || dataPdu.Header.PDUType2 != PDUTYPE2_FONTMAP {
if ok {
glog.Error("recvServerFontMapPDU ignore datapdu type2", dataPdu.Header.PDUType2)
} else {
glog.Error("recvServerFontMapPDU ignore message type", pdu.ShareCtrlHeader.PDUType)
}
return
}
c.transport.On("data", c.recvPDU)
c.Emit("ready")
}
func (c *Client) recvPDU(s []byte) {
glog.Trace("PDU recvPDU", hex.EncodeToString(s))
r := bytes.NewReader(s)
if r.Len() > 0 {
p, err := readPDU(r)
if err != nil {
glog.Error(err)
return
}
if p.ShareCtrlHeader.PDUType == PDUTYPE_DEACTIVATEALLPDU {
c.transport.Once("data", c.recvDemandActivePDU)
} else if p.ShareCtrlHeader.PDUType == PDUTYPE_DATAPDU {
d := p.Message.(*DataPDU)
if d.Header.PDUType2 == PDUTYPE2_UPDATE {
up := d.Data.(*UpdateDataPDU)
p := up.Udata
if up.UpdateType == FASTPATH_UPDATETYPE_BITMAP {
c.Emit("bitmap", p.(*BitmapUpdateDataPDU).Rectangles)
} else if up.UpdateType == FASTPATH_UPDATETYPE_ORDERS {
c.Emit("orders", p.(*FastPathOrdersPDU).OrderPdus)
}
}
if d.Header.PDUType2 == PDUTYPE2_SAVE_SESSION_INFO {
c.Emit("success")
}
}
}
}
func (c *Client) RecvFastPath(secFlag byte, s []byte) {
glog.Trace("PDU RecvFastPath", hex.EncodeToString(s))
r := bytes.NewReader(s)
for r.Len() > 0 {
updateHeader, err := core.ReadUInt8(r)
if err != nil {
return
}
updateCode := updateHeader & 0x0f
fragmentation := updateHeader & 0x30
compression := updateHeader & 0xC0
var compressionFlags uint8 = 0
if compression == FASTPATH_OUTPUT_COMPRESSION_USED {
compressionFlags, err = core.ReadUInt8(r)
}
size, err := core.ReadUint16LE(r)
if err != nil {
return
}
glog.Trace("Code:", FastPathUpdateType(updateCode),
"compressionFlags:", compressionFlags,
"fragmentation:", fragmentation,
"size:", size, "len:", r.Len())
if compressionFlags&RDP_MPPC_COMPRESSED != 0 {
glog.Info("RDP_MPPC_COMPRESSED")
}
if fragmentation != FASTPATH_FRAGMENT_SINGLE {
if fragmentation == FASTPATH_FRAGMENT_FIRST {
c.buff.Reset()
}
b, _ := core.ReadBytes(r.Len(), r)
c.buff.Write(b)
if fragmentation != FASTPATH_FRAGMENT_LAST {
return
}
r = bytes.NewReader(c.buff.Bytes())
}
p, err := readFastPathUpdatePDU(r, updateCode)
if err != nil || p == nil || p.Data == nil {
glog.Debug("readFastPathUpdatePDU:", err)
return
}
if updateCode == FASTPATH_UPDATETYPE_BITMAP {
c.Emit("bitmap", p.Data.(*FastPathBitmapUpdateDataPDU).Rectangles)
} else if updateCode == FASTPATH_UPDATETYPE_COLOR {
c.Emit("color", p.Data.(*FastPathColorPdu))
} else if updateCode == FASTPATH_UPDATETYPE_ORDERS {
c.Emit("orders", p.Data.(*FastPathOrdersPDU).OrderPdus)
}
}
}
type InputEventsInterface interface {
Serialize() []byte
}
func (c *Client) SendInputEvents(msgType uint16, events []InputEventsInterface) {
p := &ClientInputEventPDU{}
p.NumEvents = uint16(len(events))
p.SlowPathInputEvents = make([]SlowPathInputEvent, 0, p.NumEvents)
for _, in := range events {
seria := in.Serialize()
s := SlowPathInputEvent{0, msgType, len(seria), seria}
p.SlowPathInputEvents = append(p.SlowPathInputEvents, s)
}
c.sendDataPDU(p)
}
+457
View File
@@ -0,0 +1,457 @@
// rfb.go
package rfb
import (
"bytes"
"crypto/des"
"encoding/hex"
"errors"
"fmt"
"io"
"log"
"net"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
)
// ProtocolVersion
const (
RFB003003 = "RFB 003.003\n"
RFB003007 = "RFB 003.007\n"
RFB003008 = "RFB 003.008\n"
)
// SecurityType
const (
SEC_INVALID uint8 = 0
SEC_NONE uint8 = 1
SEC_VNC uint8 = 2
)
type RFBConn struct {
emission.Emitter
// The Socket connection to the client
Conn net.Conn
s *ServerInit
NbRect uint16
BitRect *BitRect
Password string
}
func NewRFBConn(s net.Conn, passwd string) *RFBConn {
fc := &RFBConn{
Emitter: *emission.NewEmitter(),
Conn: s,
BitRect: new(BitRect),
Password: passwd,
}
core.StartReadBytes(12, fc, fc.recvProtocolVersion)
return fc
}
func (fc *RFBConn) Read(b []byte) (n int, err error) {
return fc.Conn.Read(b)
}
func (fc *RFBConn) Write(data []byte) (n int, err error) {
buff := &bytes.Buffer{}
buff.Write(data)
return fc.Conn.Write(buff.Bytes())
}
func (fc *RFBConn) Close() error {
return fc.Conn.Close()
}
func (fc *RFBConn) recvProtocolVersion(s []byte, err error) {
version := string(s)
glog.Debug("RFBConn recvProtocolVersion", version, err)
if err != nil {
fc.Emit("error", err)
return
}
fc.Emit("data", version)
if version == RFB003003 {
fc.Emit("error", fmt.Errorf("%s", "Not Support RFB003003"))
return
//core.StartReadBytes(4, fc, fc.recvSecurityServer)
} else {
core.StartReadBytes(1, fc, fc.checkSecurityList)
}
}
func (fc *RFBConn) checkSecurityList(s []byte, err error) {
r := bytes.NewReader(s)
result, _ := core.ReadUInt8(r)
glog.Debug("RFBConn recvSecurityList", result, err)
core.StartReadBytes(int(result), fc, fc.recvSecurityList)
}
func (fc *RFBConn) recvSecurityList(s []byte, err error) {
r := bytes.NewReader(s)
secLevel := SEC_VNC
for r.Len() > 0 {
result, _ := core.ReadUInt8(r)
if result == SEC_NONE || result == SEC_VNC {
secLevel = result
break
}
}
glog.Debug("RFBConn recvSecurityList", secLevel, err)
buff := &bytes.Buffer{}
core.WriteUInt8(secLevel, buff)
fc.Write(buff.Bytes())
if secLevel == SEC_VNC {
core.StartReadBytes(16, fc, fc.recvVNCChallenge)
} else {
core.StartReadBytes(4, fc, fc.recvSecurityResult)
}
}
func fixDesKeyByte(val byte) byte {
var newval byte = 0
for i := 0; i < 8; i++ {
newval <<= 1
newval += (val & 1)
val >>= 1
}
return newval
}
// fixDesKey will make sure that exactly 8 bytes is used either by truncating or padding with nulls
// The bytes are then bit mirrored and returned
func fixDesKey(key []byte) []byte {
tmp := key
buf := make([]byte, 8)
if len(tmp) <= 8 {
copy(buf, tmp)
} else {
copy(buf, tmp[:8])
}
for i := 0; i < 8; i++ {
buf[i] = fixDesKeyByte(buf[i])
}
return buf
}
func (fc *RFBConn) recvVNCChallenge(s []byte, err error) {
glog.Debug("RFBConn recvVNCChallenge", hex.EncodeToString(s), len(s), err)
key := core.UnicodeEncode(fc.Password)
bk, err := des.NewCipher(fixDesKey(key))
if err != nil {
log.Printf("Error generating authentication cipher: %s\n", err.Error())
return
}
result := make([]byte, 16)
bk.Encrypt(result, s) //Encrypt first 8 bytes
bk.Encrypt(result[8:], s[8:])
if err != nil {
fmt.Println(err)
}
fmt.Println(string(result))
fc.Write(result)
core.StartReadBytes(4, fc, fc.recvSecurityResult)
}
func (fc *RFBConn) recvSecurityResult(s []byte, err error) {
r := bytes.NewReader(s)
result, _ := core.ReadUInt32BE(r)
glog.Debug("RFBConn recvSecurityResult", result, err)
if result == 1 {
fc.Emit("error", fmt.Errorf("%s", "Authentification failed"))
return
}
buff := &bytes.Buffer{}
core.WriteUInt8(0, buff) //share
fc.Write(buff.Bytes())
core.StartReadBytes(20, fc, fc.recvServerInit)
}
type ServerInit struct {
Width uint16 `struc:"little"`
Height uint16 `struc:"little"`
PixelFormat *PixelFormat `struc:"little"`
}
func (fc *RFBConn) recvServerInit(s []byte, err error) {
glog.Debug("RFBConn recvServerInit", len(s), err)
r := bytes.NewReader(s)
si := &ServerInit{}
si.Width, err = core.ReadUint16BE(r)
si.Height, err = core.ReadUint16BE(r)
si.PixelFormat = ReadPixelFormat(r)
glog.Infof("serverInit:%+v, %+v", si, si.PixelFormat)
fc.s = si
fc.BitRect.Pf = si.PixelFormat
core.StartReadBytes(4, fc, fc.checkServerName)
}
func (fc *RFBConn) checkServerName(s []byte, err error) {
r := bytes.NewReader(s)
result, _ := core.ReadUInt32BE(r)
glog.Debug("RFBConn recvSecurityList", result, err)
core.StartReadBytes(int(result), fc, fc.recvServerName)
}
func (fc *RFBConn) recvServerName(s []byte, err error) {
glog.Debug("RFBConn recvServerName", string(s), err)
//fc.sendPixelFormat()
fc.sendSetEncoding()
fc.sendFramebufferUpdateRequest(0, 0, 0, fc.s.Width, fc.s.Height)
fc.Emit("ready")
core.StartReadBytes(1, fc, fc.recvServerOrder)
}
func (fc *RFBConn) sendSetEncoding() {
glog.Debug("sendSetEncoding")
buff := &bytes.Buffer{}
core.WriteUInt8(2, buff)
core.WriteUInt8(0, buff)
core.WriteUInt16BE(1, buff)
core.WriteUInt32BE(0, buff)
fc.Write(buff.Bytes())
}
type FrameBufferUpdateRequest struct {
Incremental uint8
X uint16
Y uint16
Width uint16
Height uint16
}
func (fc *RFBConn) sendFramebufferUpdateRequest(Incremental uint8,
X uint16,
Y uint16,
Width uint16,
Height uint16) {
glog.Debug("sendFramebufferUpdateRequest")
buff := &bytes.Buffer{}
core.WriteUInt8(3, buff)
core.WriteUInt8(Incremental, buff)
core.WriteUInt16BE(X, buff)
core.WriteUInt16BE(Y, buff)
core.WriteUInt16BE(Width, buff)
core.WriteUInt16BE(Height, buff)
fc.Write(buff.Bytes())
}
func (fc *RFBConn) recvServerOrder(s []byte, err error) {
glog.Debug("RFBConn recvServerOrder", hex.EncodeToString(s), err)
r := bytes.NewReader(s)
packetType, _ := core.ReadUInt8(r)
switch packetType {
case 0:
core.StartReadBytes(3, fc, fc.recvFrameBufferUpdateHeader)
case 2:
//TODO
case 3:
core.StartReadBytes(7, fc, fc.recvServerCutTextHeader)
default:
glog.Errorf("Unknown message type %d", packetType)
}
}
type BitRect struct {
Rects []Rectangles
Pf *PixelFormat
}
type Rectangles struct {
Rect *Rectangle
Data []byte
}
func (fc *RFBConn) recvFrameBufferUpdateHeader(s []byte, err error) {
glog.Debug("RFBConn recvFrameBufferUpdateHeader", hex.EncodeToString(s), err)
r := bytes.NewReader(s)
core.ReadUInt8(r)
NbRect, _ := core.ReadUint16BE(r)
fc.NbRect = NbRect
fc.BitRect.Rects = make([]Rectangles, fc.NbRect)
if NbRect == 0 {
return
}
glog.Info("NbRect:", NbRect)
core.StartReadBytes(12, fc, fc.recvRectHeader)
}
type Rectangle struct {
X uint16 `struc:"little"`
Y uint16 `struc:"little"`
Width uint16 `struc:"little"`
Height uint16 `struc:"little"`
Encoding uint32 `struc:"little"`
}
func (fc *RFBConn) recvRectHeader(s []byte, err error) {
glog.Debug("RFBConn recvRectHeader", hex.EncodeToString(s), err)
r := bytes.NewReader(s)
x, err := core.ReadUint16BE(r)
y, err := core.ReadUint16BE(r)
w, err := core.ReadUint16BE(r)
h, err := core.ReadUint16BE(r)
e, err := core.ReadUInt32BE(r)
rect := &Rectangle{x, y, w, h, e}
fc.BitRect.Rects[fc.NbRect-1].Rect = rect
glog.Infof("rect:%+v, len=%d", rect, int(rect.Width)*int(rect.Height)*4)
core.StartReadBytes(int(rect.Width)*int(rect.Height)*4, fc, fc.recvRectBody)
}
func (fc *RFBConn) recvRectBody(s []byte, err error) {
glog.Debug("RFBConn recvRectBody", hex.EncodeToString(s), err)
fc.BitRect.Rects[fc.NbRect-1].Data = s
fc.NbRect--
glog.Info("fc.NbRect:", fc.NbRect)
if fc.NbRect == 0 {
fc.Emit("bitmap", fc.BitRect)
fc.sendFramebufferUpdateRequest(1, 0, 0, fc.s.Width, fc.s.Height)
core.StartReadBytes(1, fc, fc.recvServerOrder)
} else {
core.StartReadBytes(12, fc, fc.recvRectHeader)
}
}
type ServerCutTextHeader struct {
Padding [3]byte `struc:"little"`
Size uint32 `struc:"little"`
}
func (fc *RFBConn) recvServerCutTextHeader(s []byte, err error) {
glog.Debug("RFBConn recvServerCutTextHeader", string(s), err)
r := bytes.NewReader(s)
header := &ServerCutTextHeader{}
err = struc.Unpack(r, header)
if err != nil {
fc.Emit("error", err)
return
}
core.StartReadBytes(int(header.Size), fc, fc.recvServerCutTextBody)
}
func (fc *RFBConn) recvServerCutTextBody(s []byte, err error) {
glog.Debug("RFBConn recvServerCutTextBody", string(s), err)
fc.Emit("CutText", s)
core.StartReadBytes(1, fc, fc.recvServerOrder)
}
type PixelFormat struct {
BitsPerPixel uint8 `struc:"little"`
Depth uint8 `struc:"little"`
BigEndianFlag uint8 `struc:"little"`
TrueColorFlag uint8 `struc:"little"`
RedMax uint16 `struc:"little"`
GreenMax uint16 `struc:"little"`
BlueMax uint16 `struc:"little"`
RedShift uint8 `struc:"little"`
GreenShift uint8 `struc:"little"`
BlueShift uint8 `struc:"little"`
Padding uint16 `struc:"little"`
Padding1 uint8 `struc:"little"`
}
func ReadPixelFormat(r io.Reader) *PixelFormat {
p := NewPixelFormat()
p.BitsPerPixel, _ = core.ReadUInt8(r)
p.Depth, _ = core.ReadUInt8(r)
p.BigEndianFlag, _ = core.ReadUInt8(r)
p.TrueColorFlag, _ = core.ReadUInt8(r)
p.RedMax, _ = core.ReadUint16BE(r)
p.GreenMax, _ = core.ReadUint16BE(r)
p.BlueMax, _ = core.ReadUint16BE(r)
p.RedShift, _ = core.ReadUInt8(r)
p.GreenShift, _ = core.ReadUInt8(r)
p.BlueShift, _ = core.ReadUInt8(r)
p.Padding, _ = core.ReadUint16BE(r)
p.Padding1, _ = core.ReadUInt8(r)
return p
}
func NewPixelFormat() *PixelFormat {
return &PixelFormat{
32, 24, 0, 1, 65280, 65280, 65280, 16, 8, 0, 0, 0,
}
}
type RFB struct {
core.Transport
Version string
SecurityLevel uint8
ServerName string
PixelFormat *PixelFormat
NbRect int
CurrentRect *Rectangle
}
func NewRFB(t core.Transport) *RFB {
fb := &RFB{t, RFB003008, SEC_INVALID, "", NewPixelFormat(), 0, &Rectangle{}}
return fb
}
func (fb *RFB) Connect() error {
if fb.Transport == nil {
return errors.New("no transport")
}
fb.Once("data", fb.recvProtocolVersion)
return nil
}
func (fb *RFB) recvProtocolVersion(version string) {
if version != RFB003003 && version != RFB003007 && version != RFB003008 {
version = RFB003008
}
glog.Infof("version:%s", version)
b := &bytes.Buffer{}
b.WriteString(version)
fb.Write(b.Bytes())
}
type KeyEvent struct {
DownFlag uint8 `struc:"little"`
Padding uint16 `struc:"little"`
Key uint32 `struc:"little"`
}
func (fb *RFB) SendKeyEvent(k *KeyEvent) {
b := &bytes.Buffer{}
core.WriteUInt8(4, b)
core.WriteUInt8(k.DownFlag, b)
core.WriteUInt16BE(k.Padding, b)
core.WriteUInt32BE(k.Key, b)
fmt.Println(b.Bytes())
fb.Write(b.Bytes())
}
type PointerEvent struct {
Mask uint8 `struc:"little"`
XPos uint16 `struc:"little"`
YPos uint16 `struc:"little"`
}
func (fb *RFB) SendPointEvent(p *PointerEvent) {
b := &bytes.Buffer{}
core.WriteUInt8(5, b)
core.WriteUInt8(p.Mask, b)
core.WriteUInt16BE(p.XPos, b)
core.WriteUInt16BE(p.YPos, b)
fmt.Println(b.Bytes())
fb.Write(b.Bytes())
}
type ClientCutText struct {
Padding uint16 `struc:"little"`
Padding1 uint8 `struc:"little"`
Size uint32 `struc:"little"`
Message string `struc:"little"`
}
func (fb *RFB) SendClientCutText(t *ClientCutText) {
b := &bytes.Buffer{}
core.WriteUInt8(6, b)
struc.Pack(b, t)
fb.Write(b.Bytes())
}
+913
View File
@@ -0,0 +1,913 @@
package sec
import (
"bytes"
"crypto/md5"
"crypto/rand"
"crypto/rc4"
"crypto/rsa"
"crypto/sha1"
"encoding/hex"
"errors"
"io"
"unicode/utf16"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/nla"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/lic"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
)
/**
* SecurityFlag
* @see http://msdn.microsoft.com/en-us/library/cc240579.aspx
*/
const (
EXCHANGE_PKT uint16 = 0x0001
TRANSPORT_REQ = 0x0002
TRANSPORT_RSP = 0x0004
ENCRYPT = 0x0008
RESET_SEQNO = 0x0010
IGNORE_SEQNO = 0x0020
INFO_PKT = 0x0040
LICENSE_PKT = 0x0080
LICENSE_ENCRYPT_CS = 0x0200
LICENSE_ENCRYPT_SC = 0x0200
REDIRECTION_PKT = 0x0400
SECURE_CHECKSUM = 0x0800
AUTODETECT_REQ = 0x1000
AUTODETECT_RSP = 0x2000
HEARTBEAT = 0x4000
FLAGSHI_VALID = 0x8000
)
const (
INFO_MOUSE uint32 = 0x00000001
INFO_DISABLECTRLALTDEL = 0x00000002
INFO_AUTOLOGON = 0x00000008
INFO_UNICODE = 0x00000010
INFO_MAXIMIZESHELL = 0x00000020
INFO_LOGONNOTIFY = 0x00000040
INFO_COMPRESSION = 0x00000080
INFO_ENABLEWINDOWSKEY = 0x00000100
INFO_REMOTECONSOLEAUDIO = 0x00002000
INFO_FORCE_ENCRYPTED_CS_PDU = 0x00004000
INFO_RAIL = 0x00008000
INFO_LOGONERRORS = 0x00010000
INFO_MOUSE_HAS_WHEEL = 0x00020000
INFO_PASSWORD_IS_SC_PIN = 0x00040000
INFO_NOAUDIOPLAYBACK = 0x00080000
INFO_USING_SAVED_CREDS = 0x00100000
INFO_AUDIOCAPTURE = 0x00200000
INFO_VIDEO_DISABLE = 0x00400000
INFO_CompressionTypeMask = 0x00001E00
)
const (
AF_INET uint16 = 0x00002
AF_INET6 = 0x0017
)
const (
PERF_DISABLE_WALLPAPER uint32 = 0x00000001
PERF_DISABLE_FULLWINDOWDRAG = 0x00000002
PERF_DISABLE_MENUANIMATIONS = 0x00000004
PERF_DISABLE_THEMING = 0x00000008
PERF_DISABLE_CURSOR_SHADOW = 0x00000020
PERF_DISABLE_CURSORSETTINGS = 0x00000040
PERF_ENABLE_FONT_SMOOTHING = 0x00000080
PERF_ENABLE_DESKTOP_COMPOSITION = 0x00000100
)
const (
FASTPATH_OUTPUT_SECURE_CHECKSUM = 0x1
FASTPATH_OUTPUT_ENCRYPTED = 0x2
)
type ClientAutoReconnect struct {
CbAutoReconnectLen uint16
CbLen uint32
Version uint32
LogonId uint32
SecVerifier []byte
}
func NewClientAutoReconnect(id uint32, random []byte) *ClientAutoReconnect {
return &ClientAutoReconnect{
CbAutoReconnectLen: 28,
CbLen: 28,
Version: 1,
LogonId: id,
SecVerifier: nla.HMAC_MD5(random, random),
}
}
type RDPExtendedInfo struct {
ClientAddressFamily uint16 `struc:"little"`
CbClientAddress uint16 `struc:"little,sizeof=ClientAddress"`
ClientAddress []byte `struc:"[]byte"`
CbClientDir uint16 `struc:"little,sizeof=ClientDir"`
ClientDir []byte `struc:"[]byte"`
ClientTimeZone []byte `struc:"[172]byte"`
ClientSessionId uint32 `struc:"litttle"`
PerformanceFlags uint32 `struc:"little"`
AutoReconnect *ClientAutoReconnect
}
func NewExtendedInfo(auto *ClientAutoReconnect) *RDPExtendedInfo {
return &RDPExtendedInfo{
ClientAddressFamily: AF_INET,
ClientAddress: []byte{0, 0},
ClientDir: []byte{0, 0},
ClientTimeZone: make([]byte, 172),
ClientSessionId: 0,
AutoReconnect: auto,
}
}
func (o *RDPExtendedInfo) Serialize() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(o.ClientAddressFamily, buff)
core.WriteUInt16LE(uint16(len(o.ClientAddress)), buff)
core.WriteBytes(o.ClientAddress, buff)
core.WriteUInt16LE(uint16(len(o.ClientDir)), buff)
core.WriteBytes(o.ClientDir, buff)
core.WriteBytes(o.ClientTimeZone, buff)
core.WriteUInt32LE(o.ClientSessionId, buff)
core.WriteUInt32LE(o.PerformanceFlags, buff)
if o.AutoReconnect != nil {
core.WriteUInt16LE(o.AutoReconnect.CbAutoReconnectLen, buff)
core.WriteUInt32LE(o.AutoReconnect.CbLen, buff)
core.WriteUInt32LE(o.AutoReconnect.Version, buff)
core.WriteUInt32LE(o.AutoReconnect.LogonId, buff)
core.WriteBytes(o.AutoReconnect.SecVerifier, buff)
}
return buff.Bytes()
}
type RDPInfo struct {
CodePage uint32
Flag uint32
CbDomain uint16
CbUserName uint16
CbPassword uint16
CbAlternateShell uint16
CbWorkingDir uint16
Domain []byte
UserName []byte
Password []byte
AlternateShell []byte
WorkingDir []byte
ExtendedInfo *RDPExtendedInfo
}
func NewRDPInfo() *RDPInfo {
info := &RDPInfo{
Flag: INFO_MOUSE | INFO_UNICODE | INFO_MAXIMIZESHELL |
INFO_ENABLEWINDOWSKEY | INFO_DISABLECTRLALTDEL | INFO_MOUSE_HAS_WHEEL |
INFO_FORCE_ENCRYPTED_CS_PDU | INFO_AUTOLOGON,
Domain: []byte{0, 0},
UserName: []byte{0, 0},
Password: []byte{0, 0},
AlternateShell: []byte{0, 0},
WorkingDir: []byte{0, 0},
ExtendedInfo: NewExtendedInfo(nil),
}
return info
}
func (o *RDPInfo) SetClientAutoReconnect(auto *ClientAutoReconnect) {
o.ExtendedInfo.AutoReconnect = auto
}
func (o *RDPInfo) SetClientInfo() {
o.Flag |= INFO_LOGONNOTIFY | INFO_LOGONERRORS
}
func (o *RDPInfo) Serialize(hasExtended bool) []byte {
buff := &bytes.Buffer{}
core.WriteUInt32LE(o.CodePage, buff) // 0000000
core.WriteUInt32LE(o.Flag, buff) // 0530101
core.WriteUInt16LE(uint16(len(o.Domain)-2), buff) // 001c
core.WriteUInt16LE(uint16(len(o.UserName)-2), buff) // 0008
core.WriteUInt16LE(uint16(len(o.Password)-2), buff) //000c
core.WriteUInt16LE(uint16(len(o.AlternateShell)-2), buff) //0000
core.WriteUInt16LE(uint16(len(o.WorkingDir)-2), buff) //0000
core.WriteBytes(o.Domain, buff)
core.WriteBytes(o.UserName, buff)
core.WriteBytes(o.Password, buff)
core.WriteBytes(o.AlternateShell, buff)
core.WriteBytes(o.WorkingDir, buff)
if hasExtended {
core.WriteBytes(o.ExtendedInfo.Serialize(), buff)
}
return buff.Bytes()
}
type SecurityHeader struct {
securityFlag uint16
securityFlagHi uint16
}
func readSecurityHeader(r io.Reader) *SecurityHeader {
s := &SecurityHeader{}
s.securityFlag, _ = core.ReadUint16LE(r)
s.securityFlagHi, _ = core.ReadUint16LE(r)
return s
}
type SEC struct {
emission.Emitter
transport core.Transport
info *RDPInfo
machineName string
clientData []interface{}
serverData []interface{}
enableEncryption bool
//Enable Secure Mac generation
enableSecureCheckSum bool
//counter before update
nbEncryptedPacket int
nbDecryptedPacket int
currentDecrytKey []byte
currentEncryptKey []byte
//current rc4 tab
decryptRc4 *rc4.Cipher
encryptRc4 *rc4.Cipher
macKey []byte
macSalt []byte
}
func NewSEC(t core.Transport) *SEC {
sec := &SEC{
*emission.NewEmitter(),
t,
NewRDPInfo(),
"",
nil,
nil,
false,
false,
0,
0,
nil,
nil,
nil,
nil,
nil,
nil,
}
t.On("close", func() {
sec.Emit("close")
}).On("error", func(err error) {
sec.Emit("error", err)
})
return sec
}
func (s *SEC) Read(data []byte) (n int, err error) {
return s.transport.Read(data)
}
func (s *SEC) Write(b []byte) (n int, err error) {
if !s.enableEncryption {
return s.transport.Write(b)
}
data := s.encrytData(b)
return s.transport.Write(data)
}
func (s *SEC) Close() error {
return s.transport.Close()
}
func (s *SEC) sendFlagged(flag uint16, data []byte) (n int, err error) {
glog.Trace("sendFlagged:", hex.EncodeToString(data))
b := s.encryt(flag, data)
return s.transport.Write(b)
}
/*
@see: http://msdn.microsoft.com/en-us/library/cc241995.aspx
@param macSaltKey: {str} mac key
@param data: {str} data to sign
@return: {str} signature
*/
func macData(macSaltKey, data []byte) []byte {
sha1Digest := sha1.New()
md5Digest := md5.New()
b := &bytes.Buffer{}
core.WriteUInt32LE(uint32(len(data)), b)
sha1Digest.Write(macSaltKey)
for i := 0; i < 40; i++ {
sha1Digest.Write([]byte("\x36"))
}
sha1Digest.Write(b.Bytes())
sha1Digest.Write(data)
sha1Sig := sha1Digest.Sum(nil)
md5Digest.Write(macSaltKey)
for i := 0; i < 48; i++ {
md5Digest.Write([]byte("\x5c"))
}
md5Digest.Write(sha1Sig)
return md5Digest.Sum(nil)
}
func (s *SEC) readEncryptedPayload(data []byte, checkSum bool) []byte {
r := bytes.NewReader(data)
sign, _ := core.ReadBytes(8, r)
glog.Debug("read sign:", sign)
encryptedPayload, _ := core.ReadBytes(r.Len(), r)
if s.decryptRc4 == nil {
s.decryptRc4, _ = rc4.NewCipher(s.currentDecrytKey)
}
s.nbDecryptedPacket++
glog.Debug("nbDecryptedPacket:", s.nbDecryptedPacket)
plaintext := make([]byte, len(encryptedPayload))
s.decryptRc4.XORKeyStream(plaintext, encryptedPayload)
return plaintext
}
func (s *SEC) writeEncryptedPayload(data []byte, checkSum bool) []byte {
if s.nbEncryptedPacket == 4096 {
}
if checkSum {
glog.Debug("need checkSum")
return []byte{}
}
s.nbEncryptedPacket++
glog.Debug("nbEncryptedPacket:", s.nbEncryptedPacket)
b := &bytes.Buffer{}
sign := macData(s.macKey, data)[:8]
//sign := macData(s.macSalt, data)[:8]
if s.encryptRc4 == nil {
s.encryptRc4, _ = rc4.NewCipher(s.currentEncryptKey)
}
plaintext := make([]byte, len(data))
s.encryptRc4.XORKeyStream(plaintext, data)
b.Write(sign)
b.Write(plaintext)
glog.Debug("sign:", hex.EncodeToString(sign), "plaintext:", hex.EncodeToString(plaintext))
return b.Bytes()
}
func (s *SEC) encryt(flag uint16, b []byte) []byte {
data := b
if flag&ENCRYPT != 0 {
data = s.writeEncryptedPayload(b, flag&SECURE_CHECKSUM != 0)
}
buff := &bytes.Buffer{}
core.WriteUInt16LE(flag, buff)
core.WriteUInt16LE(0, buff)
core.WriteBytes(data, buff)
return buff.Bytes()
}
func (s *SEC) encrytData(b []byte) []byte {
if !s.enableEncryption {
return b
}
var flag uint16 = ENCRYPT
if s.enableSecureCheckSum {
flag |= SECURE_CHECKSUM
}
return s.encryt(flag, b)
}
func (s *SEC) decrytData(b []byte) []byte {
if !s.enableEncryption {
return b
}
r := bytes.NewReader(b)
securityFlag, _ := core.ReadUint16LE(r)
_, _ = core.ReadUint16LE(r) //securityFlagHi
data, _ := core.ReadBytes(r.Len(), r)
if securityFlag&ENCRYPT != 0 {
data = s.readEncryptedPayload(data, securityFlag&SECURE_CHECKSUM != 0)
}
return data
}
type Client struct {
*SEC
userId uint16
channelId uint16
//initialise decrypt and encrypt keys
initialDecrytKey []byte
initialEncryptKey []byte
fastPathListener core.FastPathListener
channelSender core.ChannelSender
}
func NewClient(t core.Transport) *Client {
c := &Client{
SEC: NewSEC(t),
}
t.On("connect", c.connect)
return c
}
func (c *Client) SetClientAutoReconnect(id uint32, random []byte) {
auto := NewClientAutoReconnect(id, random)
c.info.SetClientAutoReconnect(auto)
}
func (c *Client) SetAlternateShell(shell string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(shell)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.AlternateShell = buff.Bytes()
c.info.Flag |= INFO_RAIL
}
func (c *Client) SetUser(user string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(user)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.UserName = buff.Bytes()
}
func (c *Client) SetPwd(pwd string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(pwd)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.Password = buff.Bytes()
}
func (c *Client) SetDomain(domain string) {
buff := &bytes.Buffer{}
for _, ch := range utf16.Encode([]rune(domain)) {
core.WriteUInt16LE(ch, buff)
}
core.WriteUInt16LE(0, buff)
c.info.Domain = buff.Bytes()
}
func (c *Client) connect(clientData []interface{}, serverData []interface{}, userId uint16, channels []t125.MCSChannelInfo) {
glog.Debug("sec on connect:", clientData)
glog.Debug("sec on connect:", serverData)
glog.Debug("sec on connect:", userId)
glog.Debug("sec on connect:", channels)
c.clientData = clientData
c.serverData = serverData
c.userId = userId
for _, channel := range channels {
glog.Infof("channel: %s <%d>:", channel.Name, channel.ID)
if channel.Name == t125.GLOBAL_CHANNEL_NAME {
c.channelId = channel.ID
//break
}
}
c.enableEncryption = c.ClientCoreData().ServerSelectedProtocol == 0
if c.enableEncryption {
c.sendClientRandom()
}
c.sendInfoPkt()
c.transport.Once("sec", c.recvLicenceInfo)
}
func (c *Client) ClientCoreData() *gcc.ClientCoreData {
return c.clientData[0].(*gcc.ClientCoreData)
}
func (c *Client) ClientSecurityData() *gcc.ClientSecurityData {
return c.clientData[1].(*gcc.ClientSecurityData)
}
func (c *Client) ClientNetworkData() *gcc.ClientNetworkData {
return c.clientData[2].(*gcc.ClientNetworkData)
}
func (c *Client) ServerSecurityData() *gcc.ServerSecurityData {
return c.serverData[1].(*gcc.ServerSecurityData)
}
/*
@summary: generate 40 bits data from 128 bits data
@param data: {str} 128 bits data
@return: {str} 40 bits data
@see: http://msdn.microsoft.com/en-us/library/cc240785.aspx
*/
func gen40bits(data []byte) []byte {
return append([]byte("\xd1\x26\x9e"), data[3:8]...)
}
/*
@summary: generate 56 bits data from 128 bits data
@param data: {str} 128 bits data
@return: {str} 56 bits data
@see: http://msdn.microsoft.com/en-us/library/cc240785.aspx
*/
func gen56bits(data []byte) []byte {
return append([]byte("\xd1"), data[1:8]...)
}
/*
@summary: Generate particular signature from combination of sha1 and md5
@see: http://msdn.microsoft.com/en-us/library/cc241992.aspx
@param inputData: strange input (see doc)
@param salt: salt for context call
@param salt1: another salt (ex : client random)
@param salt2: another another salt (ex: server random)
@return : MD5(Salt + SHA1(Input + Salt + Salt1 + Salt2))
*/
func saltedHash(inputData, salt, salt1, salt2 []byte) []byte {
sha1Digest := sha1.New()
md5Digest := md5.New()
sha1Digest.Write(inputData)
sha1Digest.Write(salt[:48])
sha1Digest.Write(salt1)
sha1Digest.Write(salt2)
sha1Sig := sha1Digest.Sum(nil)
md5Digest.Write(salt[:48])
md5Digest.Write(sha1Sig)
return md5Digest.Sum(nil)[:16]
}
/*
@summary: MD5(in0[:16] + in1[:32] + in2[:32])
@param key: in 16
@param random1: in 32
@param random2: in 32
@return MD5(in0[:16] + in1[:32] + in2[:32])
*/
func finalHash(key, random1, random2 []byte) []byte {
md5Digest := md5.New()
md5Digest.Write(key)
md5Digest.Write(random1)
md5Digest.Write(random2)
return md5Digest.Sum(nil)
}
/*
@summary: Generate master secret
@param secret: {str} secret
@param clientRandom : {str} client random
@param serverRandom : {str} server random
@see: http://msdn.microsoft.com/en-us/library/cc241992.aspx
*/
func masterSecret(secret, random1, random2 []byte) []byte {
sh1 := saltedHash([]byte("A"), secret, random1, random2)
sh2 := saltedHash([]byte("BB"), secret, random1, random2)
sh3 := saltedHash([]byte("CCC"), secret, random1, random2)
ms := bytes.NewBuffer(nil)
ms.Write(sh1)
ms.Write(sh2)
ms.Write(sh3)
return ms.Bytes()
}
/*
@summary: Generate master secret
@param secret: secret
@param clientRandom : client random
@param serverRandom : server random
*/
func sessionKeyBlob(secret, random1, random2 []byte) []byte {
sh1 := saltedHash([]byte("X"), secret, random1, random2)
sh2 := saltedHash([]byte("YY"), secret, random1, random2)
sh3 := saltedHash([]byte("ZZZ"), secret, random1, random2)
ms := bytes.NewBuffer(nil)
ms.Write(sh1)
ms.Write(sh2)
ms.Write(sh3)
return ms.Bytes()
}
func generateKeys(clientRandom, serverRandom []byte, method uint32) ([]byte, []byte, []byte) {
b := &bytes.Buffer{}
b.Write(clientRandom[:24])
b.Write(serverRandom[:24])
preMasterHash := b.Bytes()
glog.Debug("preMasterHash:", hex.EncodeToString(preMasterHash))
masterHash := masterSecret(preMasterHash, clientRandom, serverRandom)
glog.Debug("masterHash:", hex.EncodeToString(masterHash))
sessionKey := sessionKeyBlob(masterHash, clientRandom, serverRandom)
glog.Debug("sessionKey:", hex.EncodeToString(sessionKey))
macKey128 := sessionKey[:16]
initialFirstKey128 := finalHash(sessionKey[16:32], clientRandom, serverRandom)
initialSecondKey128 := finalHash(sessionKey[32:48], clientRandom, serverRandom)
glog.Debug("macKey128:", hex.EncodeToString(macKey128))
glog.Debug("FirstKey128:", hex.EncodeToString(initialFirstKey128))
glog.Debug("SecondKey128:", hex.EncodeToString(initialSecondKey128))
//generate valid key
if method == gcc.ENCRYPTION_FLAG_40BIT {
return gen40bits(macKey128), gen40bits(initialFirstKey128), gen40bits(initialSecondKey128)
} else if method == gcc.ENCRYPTION_FLAG_56BIT {
return gen56bits(macKey128), gen56bits(initialFirstKey128), gen56bits(initialSecondKey128)
}
// method == gcc.ENCRYPTION_FLAG_128BIT
return macKey128, initialFirstKey128, initialSecondKey128
}
type ClientSecurityExchangePDU struct {
Length uint32 `struc:"little"`
EncryptedClientRandom []byte `struc:"little"`
Padding []byte `struc:"[8]byte"`
}
func (e *ClientSecurityExchangePDU) serialize() []byte {
buff := &bytes.Buffer{}
core.WriteUInt32LE(e.Length, buff)
core.WriteBytes(e.EncryptedClientRandom, buff)
core.WriteBytes(e.Padding, buff)
return buff.Bytes()
}
func (c *Client) sendClientRandom() {
glog.Debug("send Client Random")
clientRandom := core.Random(32)
glog.Debug("clientRandom:", hex.EncodeToString(clientRandom))
serverRandom := c.ServerSecurityData().ServerRandom
glog.Debug("ServerRandom:", hex.EncodeToString(serverRandom))
c.macKey, c.initialDecrytKey, c.initialEncryptKey = generateKeys(clientRandom,
serverRandom, c.ServerSecurityData().EncryptionMethod)
//initialize keys
c.currentDecrytKey = c.initialDecrytKey
c.currentEncryptKey = c.initialEncryptKey
//verify certificate
if !c.ServerSecurityData().ServerCertificate.CertData.Verify() {
glog.Warn("Cannot verify server identity")
}
serverPubKey, err := c.ServerSecurityData().ServerCertificate.CertData.GetPublicKey()
if err != nil || serverPubKey == nil {
glog.Error("GetPublicKey failed:", err)
c.Emit("error", errors.New("failed to get server public key"))
return
}
ret, err := rsa.EncryptPKCS1v15(rand.Reader, serverPubKey, core.Reverse(clientRandom))
if err != nil {
glog.Error("EncryptPKCS1v15 err:", err)
c.Emit("error", err)
return
}
message := ClientSecurityExchangePDU{}
message.EncryptedClientRandom = core.Reverse(ret)
message.Length = uint32(len(message.EncryptedClientRandom) + 8)
message.Padding = make([]byte, 8)
glog.Debug("message:", message)
c.sendFlagged(EXCHANGE_PKT, message.serialize())
}
func (c *Client) sendInfoPkt() {
var secFlag uint16 = INFO_PKT
if c.enableEncryption {
secFlag |= ENCRYPT
}
glog.Debug("RdpVersion:", c.ClientCoreData().RdpVersion, ":", gcc.RDP_VERSION_5_PLUS)
c.sendFlagged(secFlag, c.info.Serialize(c.ClientCoreData().RdpVersion == gcc.RDP_VERSION_5_PLUS))
}
func (c *Client) recvLicenceInfo(channel string, s []byte) {
glog.Debug("sec recvLicenceInfo", hex.EncodeToString(s))
r := bytes.NewReader(s)
h := readSecurityHeader(r)
if (h.securityFlag & LICENSE_PKT) == 0 {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_PDU_SEC_BAD_LICENSE_HEADER"))
return
}
p := lic.ReadLicensePacket(r)
switch p.BMsgtype {
case lic.NEW_LICENSE:
glog.Info("sec NEW_LICENSE")
c.Emit("success")
goto connect
case lic.ERROR_ALERT:
message := p.LicensingMessage.(*lic.ErrorMessage)
glog.Info("sec ERROR_ALERT and ErrorCode:", message.DwErrorCode)
if message.DwErrorCode == lic.STATUS_VALID_CLIENT && message.DwStateTransaction == lic.ST_NO_TRANSITION {
goto connect
}
goto retry
case lic.LICENSE_REQUEST:
glog.Info("sec LICENSE_REQUEST")
c.sendClientNewLicenseRequest(p.LicensingMessage.([]byte))
goto retry
case lic.PLATFORM_CHALLENGE:
glog.Info("sec PLATFORM_CHALLENGE")
c.sendClientChallengeResponse(p.LicensingMessage.([]byte))
goto retry
default:
glog.Error("Not a valid license packet")
c.Emit("error", errors.New("Not a valid license packet"))
return
}
connect:
c.transport.On("sec", c.recvData)
c.Emit("connect", c.clientData[0].(*gcc.ClientCoreData), c.userId, c.channelId)
return
retry:
c.transport.Once("sec", c.recvLicenceInfo)
return
}
func (c *Client) sendClientNewLicenseRequest(data []byte) {
var req lic.ServerLicenseRequest
struc.Unpack(bytes.NewReader(data), &req)
var sc gcc.ServerCertificate
if c.ServerSecurityData().ServerCertificate.DwVersion != 0 {
sc = c.ServerSecurityData().ServerCertificate
} else {
rd := bytes.NewReader(req.ServerCertificate.BlobData)
err := sc.Unpack(rd)
if err != nil {
glog.Error("read serverCertificate err:", err)
return
}
}
serverRandom := req.ServerRandom
clientRandom := core.Random(32)
preMasterSecret := core.Random(48)
masSecret := masterSecret(preMasterSecret, clientRandom, serverRandom)
sessionKeyBlob := masterSecret(masSecret, serverRandom, clientRandom)
//c.macKey = sessionKeyBlob[:16]
c.macSalt = sessionKeyBlob[:16]
c.initialDecrytKey = finalHash(sessionKeyBlob[16:32], clientRandom, serverRandom)
//format message
message := &lic.ClientNewLicenseRequest{}
message.PreferredKeyExchangeAlg = 0x00000001
message.PlatformId = 0x04000000 | 0x00010000
message.ClientRandom = clientRandom
buff := &bytes.Buffer{}
serverPubKey, err := sc.CertData.GetPublicKey()
if err != nil {
glog.Error("GetPublicKey failed:", err)
return
}
ret, err := rsa.EncryptPKCS1v15(rand.Reader, serverPubKey, core.Reverse(preMasterSecret))
if err != nil {
glog.Error("EncryptPKCS1v15 failed:", err)
return
}
buff.Write(core.Reverse(ret))
buff.Write([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
message.EncryptedPreMasterSecret.BlobData = buff.Bytes()
message.EncryptedPreMasterSecret.WBlobLen = uint16(buff.Len())
message.EncryptedPreMasterSecret.WBlobType = lic.BB_RANDOM_BLOB
buff.Reset()
buff.Write(c.info.UserName)
buff.Write([]byte{0x00})
message.ClientUserName.BlobData = buff.Bytes()
message.ClientUserName.WBlobLen = uint16(buff.Len())
message.ClientUserName.WBlobType = lic.BB_CLIENT_USER_NAME_BLOB
buff.Reset()
buff.Write(c.ClientCoreData().ClientName[:])
buff.Write([]byte{0x00})
message.ClientMachineName.BlobData = buff.Bytes()
message.ClientMachineName.WBlobLen = uint16(buff.Len())
message.ClientMachineName.WBlobType = lic.BB_CLIENT_MACHINE_NAME_BLOB
buff.Reset()
err = struc.Pack(buff, message)
if err != nil {
glog.Error("err:", err)
}
c.sendFlagged(LICENSE_PKT, buff.Bytes())
}
func (c *Client) sendClientChallengeResponse(data []byte) {
var pc lic.ServerPlatformChallenge
struc.Unpack(bytes.NewReader(data), &pc)
serverEncryptedChallenge := pc.EncryptedPlatformChallenge.BlobData
//decrypt server challenge
//it should be TEST word in unicode format
rc, _ := rc4.NewCipher(c.initialDecrytKey)
serverChallenge := make([]byte, 20)
rc.XORKeyStream(serverChallenge, serverEncryptedChallenge)
//if serverChallenge != "T\x00E\x00S\x00T\x00\x00\x00":
//raise InvalidExpectedDataException("bad license server challenge")
//generate hwid
b := &bytes.Buffer{}
b.Write(c.ClientCoreData().ClientName[:])
b.Write(c.info.UserName)
for i := 0; i < 2; i++ {
b.Write([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})
}
hwid := b.Bytes()[:20]
encryptedHWID := make([]byte, 20)
rc.XORKeyStream(encryptedHWID, hwid)
b.Reset()
b.Write(serverChallenge)
b.Write(hwid)
message := &lic.ClientPLatformChallengeResponse{}
message.EncryptedPlatformChallengeResponse.BlobData = serverEncryptedChallenge
message.EncryptedHWID.BlobData = encryptedHWID
//message.MACData = macData(c.macKey, b.Bytes())[:16]
message.MACData = macData(c.macSalt, b.Bytes())[:16]
b.Reset()
struc.Pack(b, message)
c.sendFlagged(LICENSE_PKT, b.Bytes())
}
func (c *Client) recvData(channel string, s []byte) {
glog.Trace("sec recvData", hex.EncodeToString(s))
glog.Debugf("channel<%s> data len: %d", channel, len(s))
data := c.decrytData(s)
if channel != t125.GLOBAL_CHANNEL_NAME {
c.Emit("channel", channel, data)
return
}
c.Emit("data", data)
}
func (c *Client) SetFastPathListener(f core.FastPathListener) {
c.fastPathListener = f
}
func (c *Client) RecvFastPath(secFlag byte, s []byte) {
data := s
if c.enableEncryption && secFlag&FASTPATH_OUTPUT_ENCRYPTED != 0 {
data = c.readEncryptedPayload(s, secFlag&FASTPATH_OUTPUT_SECURE_CHECKSUM != 0)
}
c.fastPathListener.RecvFastPath(secFlag, data)
}
func (c *Client) SetChannelSender(f core.ChannelSender) {
c.channelSender = f
}
func (c *Client) SendToChannel(channel string, b []byte) (int, error) {
if !c.enableEncryption {
glog.Debug("Sec Client write", hex.EncodeToString(b))
return c.channelSender.SendToChannel(channel, b)
}
var flag uint16 = ENCRYPT
if c.enableSecureCheckSum {
flag |= SECURE_CHECKSUM
}
data := c.writeEncryptedPayload(b, c.enableSecureCheckSum)
buff := &bytes.Buffer{}
core.WriteUInt16LE(flag, buff)
core.WriteUInt16LE(0, buff)
core.WriteBytes(data, buff)
glog.Debug("Sec Client write", channel, hex.EncodeToString(buff.Bytes()))
return c.channelSender.SendToChannel(channel, buff.Bytes())
}
+189
View File
@@ -0,0 +1,189 @@
package ber
import (
"errors"
"fmt"
"io"
"github.com/shadow1ng/fscan/mylib/grdp/core"
)
const (
CLASS_MASK uint8 = 0xC0
CLASS_UNIV = 0x00
CLASS_APPL = 0x40
CLASS_CTXT = 0x80
CLASS_PRIV = 0xC0
)
const (
PC_MASK uint8 = 0x20
PC_PRIMITIVE = 0x00
PC_CONSTRUCT = 0x20
)
const (
TAG_MASK uint8 = 0x1F
TAG_BOOLEAN = 0x01
TAG_INTEGER = 0x02
TAG_BIT_STRING = 0x03
TAG_OCTET_STRING = 0x04
TAG_OBJECT_IDENFIER = 0x06
TAG_ENUMERATED = 0x0A
TAG_SEQUENCE = 0x10
TAG_SEQUENCE_OF = 0x10
)
func berPC(pc bool) uint8 {
if pc {
return PC_CONSTRUCT
}
return PC_PRIMITIVE
}
func ReadEnumerated(r io.Reader) (uint8, error) {
if !ReadUniversalTag(TAG_ENUMERATED, false, r) {
return 0, errors.New("invalid ber tag")
}
length, err := ReadLength(r)
if err != nil {
return 0, err
}
if length != 1 {
return 0, errors.New(fmt.Sprintf("enumerate size is wrong, get %v, expect 1", length))
}
return core.ReadUInt8(r)
}
func ReadUniversalTag(tag uint8, pc bool, r io.Reader) bool {
bb, _ := core.ReadUInt8(r)
return bb == (CLASS_UNIV|berPC(pc))|(TAG_MASK&tag)
}
func WriteUniversalTag(tag uint8, pc bool, w io.Writer) {
core.WriteUInt8((CLASS_UNIV|berPC(pc))|(TAG_MASK&tag), w)
}
func ReadLength(r io.Reader) (int, error) {
ret := 0
size, _ := core.ReadUInt8(r)
if size&0x80 > 0 {
size = size &^ 0x80
if size == 1 {
r, err := core.ReadUInt8(r)
if err != nil {
return 0, err
}
ret = int(r)
} else if size == 2 {
r, err := core.ReadUint16BE(r)
if err != nil {
return 0, err
}
ret = int(r)
} else {
return 0, errors.New("BER length may be 1 or 2")
}
} else {
ret = int(size)
}
return ret, nil
}
func WriteLength(size int, w io.Writer) {
if size > 0x7f {
core.WriteUInt8(0x82, w)
core.WriteUInt16BE(uint16(size), w)
} else {
core.WriteUInt8(uint8(size), w)
}
}
func ReadInteger(r io.Reader) (int, error) {
if !ReadUniversalTag(TAG_INTEGER, false, r) {
return 0, errors.New("Bad integer tag")
}
size, _ := ReadLength(r)
switch size {
case 1:
num, _ := core.ReadUInt8(r)
return int(num), nil
case 2:
num, _ := core.ReadUint16BE(r)
return int(num), nil
case 3:
integer1, _ := core.ReadUInt8(r)
integer2, _ := core.ReadUint16BE(r)
return int(integer2) + (int(integer1) << 16), nil
case 4:
num, _ := core.ReadUInt32BE(r)
return int(num), nil
default:
return 0, errors.New("wrong size")
}
}
func WriteInteger(n int, w io.Writer) {
WriteUniversalTag(TAG_INTEGER, false, w)
if n <= 0xff {
WriteLength(1, w)
core.WriteUInt8(uint8(n), w)
} else if n <= 0xffff {
WriteLength(2, w)
core.WriteUInt16BE(uint16(n), w)
} else {
WriteLength(4, w)
core.WriteUInt32BE(uint32(n), w)
}
}
func WriteOctetstring(str string, w io.Writer) {
WriteUniversalTag(TAG_OCTET_STRING, false, w)
WriteLength(len(str), w)
core.WriteBytes([]byte(str), w)
}
func WriteBoolean(b bool, w io.Writer) {
bb := uint8(0)
if b {
bb = uint8(0xff)
}
WriteUniversalTag(TAG_BOOLEAN, false, w)
WriteLength(1, w)
core.WriteUInt8(bb, w)
}
func ReadApplicationTag(tag uint8, r io.Reader) (int, error) {
bb, _ := core.ReadUInt8(r)
if tag > 30 {
if bb != (CLASS_APPL|PC_CONSTRUCT)|TAG_MASK {
return 0, errors.New("ReadApplicationTag invalid data")
}
bb, _ := core.ReadUInt8(r)
if bb != tag {
return 0, errors.New("ReadApplicationTag bad tag")
}
} else {
if bb != (CLASS_APPL|PC_CONSTRUCT)|(TAG_MASK&tag) {
return 0, errors.New("ReadApplicationTag invalid data2")
}
}
return ReadLength(r)
}
func WriteApplicationTag(tag uint8, size int, w io.Writer) {
if tag > 30 {
core.WriteUInt8((CLASS_APPL|PC_CONSTRUCT)|TAG_MASK, w)
core.WriteUInt8(tag, w)
WriteLength(size, w)
} else {
core.WriteUInt8((CLASS_APPL|PC_CONSTRUCT)|(TAG_MASK&tag), w)
WriteLength(size, w)
}
}
func WriteEncodedDomainParams(data []byte, w io.Writer) {
WriteUniversalTag(TAG_SEQUENCE, true, w)
WriteLength(len(data), w)
core.WriteBytes(data, w)
}
+642
View File
@@ -0,0 +1,642 @@
package gcc
import (
"bytes"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/asn1"
"errors"
"fmt"
"io"
"math/big"
"os"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/per"
)
var t124_02_98_oid = []byte{0, 0, 20, 124, 0, 1}
var h221_cs_key = "Duca"
var h221_sc_key = "McDn"
/**
* @see http://msdn.microsoft.com/en-us/library/cc240509.aspx
*/
type Message uint16
const (
//server -> client
SC_CORE Message = 0x0C01
SC_SECURITY = 0x0C02
SC_NET = 0x0C03
//client -> server
CS_CORE = 0xC001
CS_SECURITY = 0xC002
CS_NET = 0xC003
CS_CLUSTER = 0xC004
CS_MONITOR = 0xC005
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type ColorDepth uint16
const (
RNS_UD_COLOR_8BPP ColorDepth = 0xCA01
RNS_UD_COLOR_16BPP_555 = 0xCA02
RNS_UD_COLOR_16BPP_565 = 0xCA03
RNS_UD_COLOR_24BPP = 0xCA04
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type HighColor uint16
const (
HIGH_COLOR_4BPP HighColor = 0x0004
HIGH_COLOR_8BPP = 0x0008
HIGH_COLOR_15BPP = 0x000f
HIGH_COLOR_16BPP = 0x0010
HIGH_COLOR_24BPP = 0x0018
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type Support uint16
const (
RNS_UD_24BPP_SUPPORT uint16 = 0x0001
RNS_UD_16BPP_SUPPORT = 0x0002
RNS_UD_15BPP_SUPPORT = 0x0004
RNS_UD_32BPP_SUPPORT = 0x0008
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type CapabilityFlag uint16
const (
RNS_UD_CS_SUPPORT_ERRINFO_PDU uint16 = 0x0001
RNS_UD_CS_WANT_32BPP_SESSION = 0x0002
RNS_UD_CS_SUPPORT_STATUSINFO_PDU = 0x0004
RNS_UD_CS_STRONG_ASYMMETRIC_KEYS = 0x0008
RNS_UD_CS_UNUSED = 0x0010
RNS_UD_CS_VALID_CONNECTION_TYPE = 0x0020
RNS_UD_CS_SUPPORT_MONITOR_LAYOUT_PDU = 0x0040
RNS_UD_CS_SUPPORT_NETCHAR_AUTODETECT = 0x0080
RNS_UD_CS_SUPPORT_DYNVC_GFX_PROTOCOL = 0x0100
RNS_UD_CS_SUPPORT_DYNAMIC_TIME_ZONE = 0x0200
RNS_UD_CS_SUPPORT_HEARTBEAT_PDU = 0x0400
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type ConnectionType uint8
const (
CONNECTION_TYPE_MODEM ConnectionType = 0x01
CONNECTION_TYPE_BROADBAND_LOW = 0x02
CONNECTION_TYPE_SATELLITEV = 0x03
CONNECTION_TYPE_BROADBAND_HIGH = 0x04
CONNECTION_TYPE_WAN = 0x05
CONNECTION_TYPE_LAN = 0x06
CONNECTION_TYPE_AUTODETECT = 0x07
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240510.aspx
*/
type VERSION uint32
const (
RDP_VERSION_4 VERSION = 0x00080001
RDP_VERSION_5_PLUS = 0x00080004
)
type Sequence uint16
const (
RNS_UD_SAS_DEL Sequence = 0xAA03
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240511.aspx
*/
type EncryptionMethod uint32
const (
ENCRYPTION_FLAG_40BIT uint32 = 0x00000001
ENCRYPTION_FLAG_128BIT = 0x00000002
ENCRYPTION_FLAG_56BIT = 0x00000008
FIPS_ENCRYPTION_FLAG = 0x00000010
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240518.aspx
*/
type EncryptionLevel uint32
const (
ENCRYPTION_LEVEL_NONE EncryptionLevel = 0x00000000
ENCRYPTION_LEVEL_LOW = 0x00000001
ENCRYPTION_LEVEL_CLIENT_COMPATIBLE = 0x00000002
ENCRYPTION_LEVEL_HIGH = 0x00000003
ENCRYPTION_LEVEL_FIPS = 0x00000004
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240513.aspx
*/
type ChannelOptions uint32
const (
CHANNEL_OPTION_INITIALIZED ChannelOptions = 0x80000000
CHANNEL_OPTION_ENCRYPT_RDP = 0x40000000
CHANNEL_OPTION_ENCRYPT_SC = 0x20000000
CHANNEL_OPTION_ENCRYPT_CS = 0x10000000
CHANNEL_OPTION_PRI_HIGH = 0x08000000
CHANNEL_OPTION_PRI_MED = 0x04000000
CHANNEL_OPTION_PRI_LOW = 0x02000000
CHANNEL_OPTION_COMPRESS_RDP = 0x00800000
CHANNEL_OPTION_COMPRESS = 0x00400000
CHANNEL_OPTION_SHOW_PROTOCOL = 0x00200000
REMOTE_CONTROL_PERSISTENT = 0x00100000
)
/**
* IBM_101_102_KEYS is the most common keyboard type
*/
type KeyboardType uint32
const (
KT_IBM_PC_XT_83_KEY KeyboardType = 0x00000001
KT_OLIVETTI = 0x00000002
KT_IBM_PC_AT_84_KEY = 0x00000003
KT_IBM_101_102_KEYS = 0x00000004
KT_NOKIA_1050 = 0x00000005
KT_NOKIA_9140 = 0x00000006
KT_JAPANESE = 0x00000007
)
/**
* @see http://technet.microsoft.com/en-us/library/cc766503%28WS.10%29.aspx
*/
type KeyboardLayout uint32
const (
ARABIC KeyboardLayout = 0x00000401
BULGARIAN = 0x00000402
CHINESE_US_KEYBOARD = 0x00000404
CZECH = 0x00000405
DANISH = 0x00000406
GERMAN = 0x00000407
GREEK = 0x00000408
US = 0x00000409
SPANISH = 0x0000040a
FINNISH = 0x0000040b
FRENCH = 0x0000040c
HEBREW = 0x0000040d
HUNGARIAN = 0x0000040e
ICELANDIC = 0x0000040f
ITALIAN = 0x00000410
JAPANESE = 0x00000411
KOREAN = 0x00000412
DUTCH = 0x00000413
NORWEGIAN = 0x00000414
)
/**
* @see http://msdn.microsoft.com/en-us/library/cc240521.aspx
*/
type CertificateType uint32
const (
CERT_CHAIN_VERSION_1 CertificateType = 0x00000001
CERT_CHAIN_VERSION_2 = 0x00000002
)
type ChannelDef struct {
Name string `struc:"little"`
Options uint32 `struc:"little"`
}
type ClientCoreData struct {
RdpVersion VERSION `struc:"uint32,little"`
DesktopWidth uint16 `struc:"little"`
DesktopHeight uint16 `struc:"little"`
ColorDepth ColorDepth `struc:"little"`
SasSequence Sequence `struc:"little"`
KbdLayout KeyboardLayout `struc:"little"`
ClientBuild uint32 `struc:"little"`
ClientName [32]byte `struc:"[32]byte"`
KeyboardType uint32 `struc:"little"`
KeyboardSubType uint32 `struc:"little"`
KeyboardFnKeys uint32 `struc:"little"`
ImeFileName [64]byte `struc:"[64]byte"`
PostBeta2ColorDepth ColorDepth `struc:"little"`
ClientProductId uint16 `struc:"little"`
SerialNumber uint32 `struc:"little"`
HighColorDepth HighColor `struc:"little"`
SupportedColorDepths uint16 `struc:"little"`
EarlyCapabilityFlags uint16 `struc:"little"`
ClientDigProductId [64]byte `struc:"[64]byte"`
ConnectionType uint8 `struc:"uint8"`
Pad1octet uint8 `struc:"uint8"`
ServerSelectedProtocol uint32 `struc:"little"`
}
func NewClientCoreData() *ClientCoreData {
name, _ := os.Hostname()
var ClientName [32]byte
copy(ClientName[:], core.UnicodeEncode(name)[:])
return &ClientCoreData{
RDP_VERSION_5_PLUS, 1280, 800, RNS_UD_COLOR_8BPP,
RNS_UD_SAS_DEL, US, 3790, ClientName, KT_IBM_101_102_KEYS,
0, 12, [64]byte{}, RNS_UD_COLOR_8BPP, 1, 0, HIGH_COLOR_24BPP,
RNS_UD_15BPP_SUPPORT | RNS_UD_16BPP_SUPPORT | RNS_UD_24BPP_SUPPORT | RNS_UD_32BPP_SUPPORT,
RNS_UD_CS_SUPPORT_ERRINFO_PDU, [64]byte{}, 0, 0, 0}
}
func (data *ClientCoreData) Pack() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(CS_CORE, buff) // 01C0
core.WriteUInt16LE(0xd8, buff) // d800
struc.Pack(buff, data)
return buff.Bytes()
}
type ClientNetworkData struct {
ChannelCount uint32
ChannelDefArray []ChannelDef
}
func NewClientNetworkData() *ClientNetworkData {
n := &ClientNetworkData{ChannelDefArray: make([]ChannelDef, 0, 100)}
/*var d1 ChannelDef
d1.Name = plugin.RDPDR_SVC_CHANNEL_NAME
d1.Options = uint32(CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP |
CHANNEL_OPTION_COMPRESS_RDP)
n.ChannelDefArray = append(n.ChannelDefArray, d1)
var d2 ChannelDef
d2.Name = plugin.RDPSND_SVC_CHANNEL_NAME
d2.Options = uint32(CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_ENCRYPT_RDP |
CHANNEL_OPTION_COMPRESS_RDP | CHANNEL_OPTION_SHOW_PROTOCOL)
n.ChannelDefArray = append(n.ChannelDefArray, d2)*/
return n
}
func (n *ClientNetworkData) AddVirtualChannel(name string, option uint32) {
var d ChannelDef
d.Name = name
d.Options = option
n.ChannelDefArray = append(n.ChannelDefArray, d)
n.ChannelCount++
}
func (n *ClientNetworkData) Pack() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(CS_NET, buff) // type
length := uint16(n.ChannelCount*12 + 8)
core.WriteUInt16LE(length, buff) // len 8
core.WriteUInt32LE(n.ChannelCount, buff)
for i := 0; i < int(n.ChannelCount); i++ {
v := n.ChannelDefArray[i]
name := make([]byte, 8)
copy(name, []byte(v.Name))
core.WriteBytes(name[:], buff)
core.WriteUInt32LE(v.Options, buff)
}
return buff.Bytes()
}
type ClientSecurityData struct {
EncryptionMethods uint32
ExtEncryptionMethods uint32
}
func NewClientSecurityData() *ClientSecurityData {
return &ClientSecurityData{
ENCRYPTION_FLAG_40BIT | ENCRYPTION_FLAG_56BIT | ENCRYPTION_FLAG_128BIT,
00}
}
func (d *ClientSecurityData) Pack() []byte {
buff := &bytes.Buffer{}
core.WriteUInt16LE(CS_SECURITY, buff) // type
core.WriteUInt16LE(0x0c, buff) // len 12
core.WriteUInt32LE(d.EncryptionMethods, buff)
core.WriteUInt32LE(d.ExtEncryptionMethods, buff)
return buff.Bytes()
}
type RSAPublicKey struct {
Magic uint32 `struc:"little"` //0x31415352
Keylen uint32 `struc:"little,sizeof=Modulus"`
Bitlen uint32 `struc:"little"`
Datalen uint32 `struc:"little"`
PubExp uint32 `struc:"little"`
Modulus []byte `struc:"little"`
Padding []byte `struc:"[8]byte"`
}
type ProprietaryServerCertificate struct {
DwSigAlgId uint32 `struc:"little"` //0x00000001
DwKeyAlgId uint32 `struc:"little"` //0x00000001
PublicKeyBlobType uint16 `struc:"little"` //0x0006
PublicKeyBlobLen uint16 `struc:"little,sizeof=PublicKeyBlob"`
PublicKeyBlob RSAPublicKey `struc:"little"`
SignatureBlobType uint16 `struc:"little"` //0x0008
SignatureBlobLen uint16 `struc:"little,sizeof=SignatureBlob"`
SignatureBlob []byte `struc:"little"`
//PaddingLen uint16 `struc:"little,sizeof=Padding,skip"`
Padding []byte `struc:"[8]byte"`
}
func (p *ProprietaryServerCertificate) GetPublicKey() (*rsa.PublicKey, error) {
b := new(big.Int).SetBytes(core.Reverse(p.PublicKeyBlob.Modulus))
e := new(big.Int).SetInt64(int64(p.PublicKeyBlob.PubExp))
return &rsa.PublicKey{N: b, E: int(e.Int64())}, nil
}
func (p *ProprietaryServerCertificate) Verify() bool {
return true
}
func (p *ProprietaryServerCertificate) Encrypt() []byte {
//todo
return nil
}
func (p *ProprietaryServerCertificate) Unpack(r io.Reader) error {
p.DwSigAlgId, _ = core.ReadUInt32LE(r)
p.DwKeyAlgId, _ = core.ReadUInt32LE(r)
p.PublicKeyBlobType, _ = core.ReadUint16LE(r)
p.PublicKeyBlobLen, _ = core.ReadUint16LE(r)
var b RSAPublicKey
b.Magic, _ = core.ReadUInt32LE(r)
b.Keylen, _ = core.ReadUInt32LE(r)
b.Bitlen, _ = core.ReadUInt32LE(r)
b.Datalen, _ = core.ReadUInt32LE(r)
b.PubExp, _ = core.ReadUInt32LE(r)
b.Modulus, _ = core.ReadBytes(int(b.Keylen)-8, r)
b.Padding, _ = core.ReadBytes(8, r)
p.PublicKeyBlob = b
p.SignatureBlobType, _ = core.ReadUint16LE(r)
p.SignatureBlobLen, _ = core.ReadUint16LE(r)
p.SignatureBlob, _ = core.ReadBytes(int(p.SignatureBlobLen)-8, r)
p.Padding, _ = core.ReadBytes(8, r)
return nil
}
type CertBlob struct {
CbCert uint32 `struc:"little,sizeof=AbCert"`
AbCert []byte `struc:"little"`
}
type X509CertificateChain struct {
NumCertBlobs uint32 `struc:"little,sizeof=CertBlobArray"`
CertBlobArray []CertBlob `struc:"little"`
Padding []byte `struc:"[12]byte"`
}
func (x *X509CertificateChain) GetPublicKey() (*rsa.PublicKey, error) {
if len(x.CertBlobArray) == 0 {
return nil, errors.New("empty certificate chain")
}
data := x.CertBlobArray[len(x.CertBlobArray)-1].AbCert
cert, err := x509.ParseCertificate(data)
if err != nil {
return nil, fmt.Errorf("parse certificate: %w", err)
}
if cert.PublicKey == nil {
var pubKeyInfo struct {
Algorithm pkix.AlgorithmIdentifier
SubjectPublicKey asn1.BitString
}
_, err = asn1.Unmarshal(cert.RawSubjectPublicKeyInfo, &pubKeyInfo)
if err != nil {
return nil, fmt.Errorf("unmarshal public key info: %w", err)
}
rsaPublicKey, err := x509.ParsePKCS1PublicKey(pubKeyInfo.SubjectPublicKey.Bytes)
if err != nil {
return nil, fmt.Errorf("parse PKCS1 public key: %w", err)
}
return rsaPublicKey, nil
}
rsaPublicKey, ok := cert.PublicKey.(*rsa.PublicKey)
if !ok {
return nil, fmt.Errorf("unsupported public key type: %T", cert.PublicKey)
}
return rsaPublicKey, nil
}
func (x *X509CertificateChain) Verify() bool {
return true
}
func (x *X509CertificateChain) Encrypt() []byte {
//todo
return nil
}
func (x *X509CertificateChain) Unpack(r io.Reader) error {
return struc.Unpack(r, x)
}
type ServerCoreData struct {
RdpVersion VERSION `struc:"uint32,little"`
ClientRequestedProtocol uint32 `struc:"little"`
EarlyCapabilityFlags uint32 `struc:"little"`
}
func NewServerCoreData() *ServerCoreData {
return &ServerCoreData{
RDP_VERSION_5_PLUS, 0, 0}
}
func (d *ServerCoreData) Serialize() []byte {
return []byte{}
}
func (d *ServerCoreData) ScType() Message {
return SC_CORE
}
func (d *ServerCoreData) Unpack(r io.Reader) error {
version, _ := core.ReadUInt32LE(r)
d.RdpVersion = VERSION(version)
d.ClientRequestedProtocol, _ = core.ReadUInt32LE(r)
d.EarlyCapabilityFlags, _ = core.ReadUInt32LE(r)
return nil
//return struc.Unpack(r, d)
}
type ServerNetworkData struct {
MCSChannelId uint16 `struc:"little"`
ChannelCount uint16 `struc:"little,sizeof=ChannelIdArray"`
ChannelIdArray []uint16 `struc:"little"`
}
func NewServerNetworkData() *ServerNetworkData {
return &ServerNetworkData{}
}
func (d *ServerNetworkData) ScType() Message {
return SC_NET
}
func (d *ServerNetworkData) Unpack(r io.Reader) error {
return struc.Unpack(r, d)
}
type CertData interface {
GetPublicKey() (*rsa.PublicKey, error)
Verify() bool
Unpack(io.Reader) error
}
type ServerCertificate struct {
DwVersion uint32
CertData CertData
}
func (sc *ServerCertificate) Unpack(r io.Reader) error {
sc.DwVersion, _ = core.ReadUInt32LE(r)
var cd CertData
switch CertificateType(sc.DwVersion & 0x7fffffff) {
case CERT_CHAIN_VERSION_1:
glog.Debug("ProprietaryServerCertificate")
cd = &ProprietaryServerCertificate{}
case CERT_CHAIN_VERSION_2:
glog.Debug("X509CertificateChain")
cd = &X509CertificateChain{}
default:
glog.Error("Unsupported version:", sc.DwVersion&0x7fffffff)
return errors.New("Unsupported version")
}
if cd != nil {
err := cd.Unpack(r)
if err != nil {
glog.Error("Unpack:", err)
return err
}
}
sc.CertData = cd
return nil
}
type ServerSecurityData struct {
EncryptionMethod uint32 `struc:"little"`
EncryptionLevel uint32 `struc:"little"`
ServerRandomLen uint32 //0x00000020
ServerCertLen uint32
ServerRandom []byte
ServerCertificate ServerCertificate
}
func NewServerSecurityData() *ServerSecurityData {
return &ServerSecurityData{
0, 0, 0x00000020, 0, []byte{}, ServerCertificate{}}
}
func (d *ServerSecurityData) ScType() Message {
return SC_SECURITY
}
func (s *ServerSecurityData) Unpack(r io.Reader) error {
s.EncryptionMethod, _ = core.ReadUInt32LE(r)
s.EncryptionLevel, _ = core.ReadUInt32LE(r)
if !(s.EncryptionMethod == 0 && s.EncryptionLevel == 0) {
s.ServerRandomLen, _ = core.ReadUInt32LE(r)
s.ServerCertLen, _ = core.ReadUInt32LE(r)
s.ServerRandom, _ = core.ReadBytes(int(s.ServerRandomLen), r)
var sc ServerCertificate
data, _ := core.ReadBytes(int(s.ServerCertLen), r)
rd := bytes.NewReader(data)
err := sc.Unpack(rd)
if err != nil {
return err
}
s.ServerCertificate = sc
}
return nil
}
func MakeConferenceCreateRequest(userData []byte) []byte {
buff := &bytes.Buffer{}
per.WriteChoice(0, buff) // 00
per.WriteObjectIdentifier(t124_02_98_oid, buff) // 05:00:14:7c:00:01
per.WriteLength(len(userData)+14, buff)
per.WriteChoice(0, buff) // 00
per.WriteSelection(0x08, buff) // 08
per.WriteNumericString("1", 1, buff) // 00 10
per.WritePadding(1, buff) // 00
per.WriteNumberOfSet(1, buff) // 01
per.WriteChoice(0xc0, buff) // c0
per.WriteOctetStream(h221_cs_key, 4, buff) // 00 44:75:63:61
per.WriteOctetStream(string(userData), 0, buff)
return buff.Bytes()
}
type ScData interface {
ScType() Message
Unpack(io.Reader) error
}
func ReadConferenceCreateResponse(data []byte) []interface{} {
ret := make([]interface{}, 0, 3)
r := bytes.NewReader(data)
per.ReadChoice(r)
if !per.ReadObjectIdentifier(r, t124_02_98_oid) {
glog.Error("NODE_RDP_PROTOCOL_T125_GCC_BAD_OBJECT_IDENTIFIER_T124")
return ret
}
per.ReadLength(r)
per.ReadChoice(r)
per.ReadInteger16(r)
per.ReadInteger(r)
per.ReadEnumerates(r)
per.ReadNumberOfSet(r)
per.ReadChoice(r)
if !per.ReadOctetStream(r, h221_sc_key, 4) {
glog.Error("NODE_RDP_PROTOCOL_T125_GCC_BAD_H221_SC_KEY")
return ret
}
ln, _ := per.ReadLength(r)
for ln > 0 {
t, _ := core.ReadUint16LE(r)
glog.Debugf("Message type 0x%x,ln:%v", t, ln)
l, _ := core.ReadUint16LE(r)
dataBytes, _ := core.ReadBytes(int(l)-4, r)
ln = ln - l
var d ScData
switch Message(t) {
case SC_CORE:
d = &ServerCoreData{}
case SC_SECURITY:
d = &ServerSecurityData{}
case SC_NET:
d = &ServerNetworkData{}
default:
glog.Error("Unknown type", t)
continue
}
if d != nil {
r := bytes.NewReader(dataBytes)
err := d.Unpack(r)
if err != nil {
glog.Warn("Unpack:", err)
}
ret = append(ret, d)
}
}
return ret
}
+585
View File
@@ -0,0 +1,585 @@
package t125
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"reflect"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/ber"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/gcc"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/t125/per"
)
// take idea from https://github.com/Madnikulin50/gordp
// Multiple Channel Service layer
type MCSMessage uint8
const (
MCS_TYPE_CONNECT_INITIAL MCSMessage = 0x65
MCS_TYPE_CONNECT_RESPONSE = 0x66
)
type MCSDomainPDU uint16
const (
ERECT_DOMAIN_REQUEST MCSDomainPDU = 1
DISCONNECT_PROVIDER_ULTIMATUM = 8
ATTACH_USER_REQUEST = 10
ATTACH_USER_CONFIRM = 11
CHANNEL_JOIN_REQUEST = 14
CHANNEL_JOIN_CONFIRM = 15
SEND_DATA_REQUEST = 25
SEND_DATA_INDICATION = 26
)
const (
MCS_GLOBAL_CHANNEL_ID uint16 = 1003
MCS_USERCHANNEL_BASE = 1001
)
const (
GLOBAL_CHANNEL_NAME = "global"
)
/**
* Format MCS PDULayer header packet
* @param mcsPdu {integer}
* @param options {integer}
* @returns {type.UInt8} headers
*/
func writeMCSPDUHeader(mcsPdu MCSDomainPDU, options uint8, w io.Writer) {
core.WriteUInt8((uint8(mcsPdu)<<2)|options, w)
}
func readMCSPDUHeader(options uint8, mcsPdu MCSDomainPDU) bool {
return (options >> 2) == uint8(mcsPdu)
}
type DomainParameters struct {
MaxChannelIds int
MaxUserIds int
MaxTokenIds int
NumPriorities int
MinThoughput int
MaxHeight int
MaxMCSPDUsize int
ProtocolVersion int
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
func NewDomainParameters(
maxChannelIds int,
maxUserIds int,
maxTokenIds int,
numPriorities int,
minThoughput int,
maxHeight int,
maxMCSPDUsize int,
protocolVersion int) *DomainParameters {
return &DomainParameters{maxChannelIds, maxUserIds, maxTokenIds,
numPriorities, minThoughput, maxHeight, maxMCSPDUsize, protocolVersion}
}
func (d *DomainParameters) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteInteger(d.MaxChannelIds, buff)
ber.WriteInteger(d.MaxUserIds, buff)
ber.WriteInteger(d.MaxTokenIds, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(0, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(d.MaxMCSPDUsize, buff)
ber.WriteInteger(2, buff)
return buff.Bytes()
}
func ReadDomainParameters(r io.Reader) (*DomainParameters, error) {
if !ber.ReadUniversalTag(ber.TAG_SEQUENCE, true, r) {
return nil, errors.New("bad BER tags")
}
d := &DomainParameters{}
ber.ReadLength(r)
d.MaxChannelIds, _ = ber.ReadInteger(r)
d.MaxUserIds, _ = ber.ReadInteger(r)
d.MaxTokenIds, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
d.MaxMCSPDUsize, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
return d, nil
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @param userData {Buffer}
* @returns {asn1.univ.Sequence}
*/
type ConnectInitial struct {
CallingDomainSelector []byte
CalledDomainSelector []byte
UpwardFlag bool
TargetParameters DomainParameters
MinimumParameters DomainParameters
MaximumParameters DomainParameters
UserData []byte
}
func NewConnectInitial(userData []byte) ConnectInitial {
return ConnectInitial{[]byte{0x1},
[]byte{0x1},
true,
*NewDomainParameters(34, 2, 0, 1, 0, 1, 0xffff, 2),
*NewDomainParameters(1, 1, 1, 1, 0, 1, 0x420, 2),
*NewDomainParameters(0xffff, 0xfc17, 0xffff, 1, 0, 1, 0xffff, 2),
userData}
}
func (c *ConnectInitial) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteOctetstring(string(c.CallingDomainSelector), buff)
ber.WriteOctetstring(string(c.CalledDomainSelector), buff)
ber.WriteBoolean(c.UpwardFlag, buff)
ber.WriteEncodedDomainParams(c.TargetParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MinimumParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MaximumParameters.BER(), buff)
ber.WriteOctetstring(string(c.UserData), buff)
return buff.Bytes()
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
type ConnectResponse struct {
result uint8
calledConnectId int
domainParameters *DomainParameters
userData []byte
}
func NewConnectResponse(userData []byte) *ConnectResponse {
return &ConnectResponse{0,
0,
NewDomainParameters(22, 3, 0, 1, 0, 1, 0xfff8, 2),
userData}
}
func ReadConnectResponse(r io.Reader) (*ConnectResponse, error) {
c := &ConnectResponse{}
var err error
_, err = ber.ReadApplicationTag(MCS_TYPE_CONNECT_RESPONSE, r)
if err != nil {
return nil, err
}
c.result, err = ber.ReadEnumerated(r)
if err != nil {
return nil, err
}
c.calledConnectId, err = ber.ReadInteger(r)
c.domainParameters, err = ReadDomainParameters(r)
if err != nil {
return nil, err
}
if !ber.ReadUniversalTag(ber.TAG_OCTET_STRING, false, r) {
return nil, errors.New("invalid expected BER tag")
}
dataLen, _ := ber.ReadLength(r)
c.userData, err = core.ReadBytes(dataLen, r)
return c, err
}
type MCSChannelInfo struct {
ID uint16
Name string
}
type MCS struct {
emission.Emitter
transport core.Transport
recvOpCode MCSDomainPDU
sendOpCode MCSDomainPDU
channels []MCSChannelInfo
}
func NewMCS(t core.Transport, recvOpCode MCSDomainPDU, sendOpCode MCSDomainPDU) *MCS {
m := &MCS{
*emission.NewEmitter(),
t,
recvOpCode,
sendOpCode,
[]MCSChannelInfo{{MCS_GLOBAL_CHANNEL_ID, GLOBAL_CHANNEL_NAME}},
}
m.transport.On("close", func() {
m.Emit("close")
}).On("error", func(err error) {
m.Emit("error", err)
})
return m
}
func (x *MCS) Read(b []byte) (n int, err error) {
return x.transport.Read(b)
}
func (x *MCS) Write(b []byte) (n int, err error) {
return x.transport.Write(b)
}
func (m *MCS) Close() error {
return m.transport.Close()
}
type MCSClient struct {
*MCS
clientCoreData *gcc.ClientCoreData
clientNetworkData *gcc.ClientNetworkData
clientSecurityData *gcc.ClientSecurityData
serverCoreData *gcc.ServerCoreData
serverNetworkData *gcc.ServerNetworkData
serverSecurityData *gcc.ServerSecurityData
channelsConnected int
userId uint16
nbChannelRequested int
}
func NewMCSClient(t core.Transport) *MCSClient {
c := &MCSClient{
MCS: NewMCS(t, SEND_DATA_INDICATION, SEND_DATA_REQUEST),
clientCoreData: gcc.NewClientCoreData(),
clientNetworkData: gcc.NewClientNetworkData(),
clientSecurityData: gcc.NewClientSecurityData(),
userId: 1 + MCS_USERCHANNEL_BASE,
}
c.transport.On("connect", c.connect)
return c
}
func (c *MCSClient) SetClientCoreData(width, height uint16) {
c.clientCoreData.DesktopWidth = width
c.clientCoreData.DesktopHeight = height
}
//func (c *MCSClient) connect(selectedProtocol uint32) {
// glog.Debug("mcs client on connect", selectedProtocol)
// c.clientCoreData.ServerSelectedProtocol = selectedProtocol
//
// // sendConnectInitial
// userDataBuff := bytes.Buffer{}
// userDataBuff.Write(c.clientCoreData.Pack())
// userDataBuff.Write(c.clientNetworkData.Pack())
// userDataBuff.Write(c.clientSecurityData.Pack())
//
// ccReq := gcc.MakeConferenceCreateRequest(userDataBuff.Bytes())
// connectInitial := NewConnectInitial(ccReq)
// connectInitialBerEncoded := connectInitial.BER()
//
// dataBuff := &bytes.Buffer{}
// ber.WriteApplicationTag(uint8(MCS_TYPE_CONNECT_INITIAL), len(connectInitialBerEncoded), dataBuff)
// dataBuff.Write(connectInitialBerEncoded)
//
// _, err := c.transport.Write(dataBuff.Bytes())
// if err != nil {
// c.Emit("error", errors.New(fmt.Sprintf("mcs sendConnectInitial write error %v", err)))
// return
// }
// glog.Debug("mcs wait for data event")
// c.transport.Once("data", c.recvConnectResponse)
//}
func (c *MCSClient) connect(selectedProtocol uint32) {
glog.Debug("mcs client on connect", selectedProtocol)
c.clientCoreData.ServerSelectedProtocol = selectedProtocol
glog.Debugf("clientCoreData:%+v", c.clientCoreData)
glog.Debugf("clientNetworkData:%+v", c.clientNetworkData)
glog.Debugf("clientSecurityData:%+v", c.clientSecurityData)
// sendConnectclientCoreDataInitial
userDataBuff := bytes.Buffer{}
userDataBuff.Write(c.clientCoreData.Pack())
userDataBuff.Write(c.clientNetworkData.Pack())
userDataBuff.Write(c.clientSecurityData.Pack())
ccReq := gcc.MakeConferenceCreateRequest(userDataBuff.Bytes())
connectInitial := NewConnectInitial(ccReq)
connectInitialBerEncoded := connectInitial.BER()
dataBuff := &bytes.Buffer{}
ber.WriteApplicationTag(uint8(MCS_TYPE_CONNECT_INITIAL), len(connectInitialBerEncoded), dataBuff)
dataBuff.Write(connectInitialBerEncoded)
_, err := c.transport.Write(dataBuff.Bytes())
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs sendConnectInitial write error %v", err)))
return
}
glog.Debug("mcs wait for data event")
c.transport.Once("data", c.recvConnectResponse)
}
func (c *MCSClient) recvConnectResponse(s []byte) {
glog.Debug("mcs recvConnectResponse", hex.EncodeToString(s))
cResp, err := ReadConnectResponse(bytes.NewReader(s))
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("ReadConnectResponse %v", err)))
return
}
// record server gcc block
serverSettings := gcc.ReadConferenceCreateResponse(cResp.userData)
for _, v := range serverSettings {
switch v.(type) {
case *gcc.ServerSecurityData:
c.serverSecurityData = v.(*gcc.ServerSecurityData)
case *gcc.ServerCoreData:
c.serverCoreData = v.(*gcc.ServerCoreData)
case *gcc.ServerNetworkData:
c.serverNetworkData = v.(*gcc.ServerNetworkData)
default:
err := errors.New(fmt.Sprintf("unhandle server gcc block %v", reflect.TypeOf(v)))
glog.Error(err)
c.Emit("error", err)
return
}
}
glog.Debugf("serverSecurityData: %+v", c.serverSecurityData)
glog.Debugf("serverCoreData: %+v", c.serverCoreData)
glog.Info("version", c.serverCoreData.RdpVersion, c.serverCoreData.ClientRequestedProtocol)
glog.Debugf("serverNetworkData: %+v", c.serverNetworkData)
glog.Debug("mcs sendErectDomainRequest")
c.sendErectDomainRequest()
glog.Debug("mcs sendAttachUserRequest")
c.sendAttachUserRequest()
c.transport.Once("data", c.recvAttachUserConfirm)
}
func (c *MCSClient) sendErectDomainRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ERECT_DOMAIN_REQUEST, 0, buff)
per.WriteInteger(0, buff)
per.WriteInteger(0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) sendAttachUserRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ATTACH_USER_REQUEST, 0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvAttachUserConfirm(s []byte) {
glog.Debug("mcs recvAttachUserConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, ATTACH_USER_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_BAD_HEADER"))
return
}
e, err := per.ReadEnumerates(r)
if err != nil {
c.Emit("error", err)
return
}
if e != 0 {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_REJECT_USER'"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
c.userId = userId
c.channels = append(c.channels, MCSChannelInfo{userId, "user"})
c.connectChannels()
}
func (c *MCSClient) connectChannels() {
glog.Debug("mcs connectChannels:", c.channelsConnected, ":", len(c.channels))
if c.channelsConnected == len(c.channels) && c.serverNetworkData != nil {
if c.nbChannelRequested < int(c.serverNetworkData.ChannelCount) {
//static virtual channel
chanId := c.serverNetworkData.ChannelIdArray[c.nbChannelRequested]
c.nbChannelRequested++
c.sendChannelJoinRequest(chanId)
c.transport.Once("data", c.recvChannelJoinConfirm)
return
}
c.transport.On("data", c.recvData)
// send client and sever gcc informations callback to sec
clientData := make([]interface{}, 0)
clientData = append(clientData, c.clientCoreData)
clientData = append(clientData, c.clientSecurityData)
clientData = append(clientData, c.clientNetworkData)
serverData := make([]interface{}, 0)
serverData = append(serverData, c.serverCoreData)
serverData = append(serverData, c.serverSecurityData)
glog.Debug("msc connectChannels callback to sec")
c.Emit("connect", clientData, serverData, c.userId, c.channels)
return
}
// sendChannelJoinRequest
glog.Debug("sendChannelJoinRequest:", c.channels[c.channelsConnected].Name)
c.sendChannelJoinRequest(c.channels[c.channelsConnected].ID)
c.transport.Once("data", c.recvChannelJoinConfirm)
}
func (c *MCSClient) sendChannelJoinRequest(channelId uint16) {
glog.Debug("mcs sendChannelJoinRequest", channelId)
buff := &bytes.Buffer{}
writeMCSPDUHeader(CHANNEL_JOIN_REQUEST, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvData(s []byte) {
glog.Debug("msc on data recvData:", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if readMCSPDUHeader(option, DISCONNECT_PROVIDER_ULTIMATUM) {
c.Emit("error", errors.New("MCS DISCONNECT_PROVIDER_ULTIMATUM"))
c.transport.Close()
return
} else if !readMCSPDUHeader(option, c.recvOpCode) {
c.Emit("error", errors.New("Invalid expected MCS opcode receive data"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
channelId, _ := per.ReadInteger16(r)
per.ReadEnumerates(r)
size, _ := per.ReadLength(r)
// channel ID doesn't match a requested layer
found := false
channelName := ""
for _, channel := range c.channels {
if channel.ID == channelId {
found = true
channelName = channel.Name
break
}
}
if !found {
glog.Error("mcs receive data for an unconnected layer")
return
}
left, err := core.ReadBytes(int(size), r)
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs recvData get data error %v", err)))
return
}
glog.Debugf("mcs emit channel<%s>:%v", channelName, left)
c.Emit("sec", channelName, left)
}
func (c *MCSClient) recvChannelJoinConfirm(s []byte) {
glog.Debug("mcs recvChannelJoinConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, CHANNEL_JOIN_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_WAIT_CHANNEL_JOIN_CONFIRM"))
return
}
confirm, _ := per.ReadEnumerates(r)
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
if c.userId != userId {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_INVALID_USER_ID"))
return
}
channelId, _ := per.ReadInteger16(r)
if (confirm != 0) && (channelId == uint16(MCS_GLOBAL_CHANNEL_ID) || channelId == c.userId) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_MUST_CONFIRM_STATIC_CHANNEL"))
return
}
glog.Debug("Confirm channelId:", channelId)
if confirm == 0 && c.serverNetworkData != nil {
for i := 0; i < int(c.serverNetworkData.ChannelCount); i++ {
if channelId == c.serverNetworkData.ChannelIdArray[i] {
var t MCSChannelInfo
t.ID = channelId
t.Name = string(c.clientNetworkData.ChannelDefArray[i].Name[:])
c.channels = append(c.channels, t)
}
}
}
c.channelsConnected++
c.connectChannels()
}
func (c *MCSClient) Pack(data []byte, channelId uint16) []byte {
buff := &bytes.Buffer{}
writeMCSPDUHeader(c.sendOpCode, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
core.WriteUInt8(0x70, buff)
per.WriteLength(len(data), buff)
core.WriteBytes(data, buff)
glog.Debug("MCSClient write", channelId, ":", hex.EncodeToString(buff.Bytes()))
return buff.Bytes()
}
func (c *MCSClient) Write(data []byte) (n int, err error) {
data = c.Pack(data, c.channels[0].ID)
return c.transport.Write(data)
}
func (c *MCSClient) SendToChannel(channel string, data []byte) (n int, err error) {
channelId := c.channels[0].ID
for _, ch := range c.channels {
if channel == ch.Name {
channelId = ch.ID
break
}
}
data = c.Pack(data, channelId)
return c.transport.Write(data)
}
+574
View File
@@ -0,0 +1,574 @@
package t125
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"io"
"reflect"
"github.com/xxx/wscan/mylib/grdp/plugin/rail"
"github.com/xxx/wscan/mylib/grdp/plugin/drdynvc"
"github.com/xxx/wscan/mylib/grdp/core"
"github.com/xxx/wscan/mylib/grdp/emission"
"github.com/xxx/wscan/mylib/grdp/glog"
"github.com/xxx/wscan/mylib/grdp/protocol/t125/ber"
"github.com/xxx/wscan/mylib/grdp/protocol/t125/gcc"
"github.com/xxx/wscan/mylib/grdp/protocol/t125/per"
)
// take idea from https://github.com/Madnikulin50/gordp
// Multiple Channel Service layer
type MCSMessage uint8
const (
MCS_TYPE_CONNECT_INITIAL MCSMessage = 0x65
MCS_TYPE_CONNECT_RESPONSE = 0x66
)
type MCSDomainPDU uint16
const (
ERECT_DOMAIN_REQUEST MCSDomainPDU = 1
DISCONNECT_PROVIDER_ULTIMATUM = 8
ATTACH_USER_REQUEST = 10
ATTACH_USER_CONFIRM = 11
CHANNEL_JOIN_REQUEST = 14
CHANNEL_JOIN_CONFIRM = 15
SEND_DATA_REQUEST = 25
SEND_DATA_INDICATION = 26
)
const (
MCS_GLOBAL_CHANNEL_ID uint16 = 1003
MCS_USERCHANNEL_BASE = 1001
)
const (
GLOBAL_CHANNEL_NAME = "global"
)
/**
* Format MCS PDULayer header packet
* @param mcsPdu {integer}
* @param options {integer}
* @returns {type.UInt8} headers
*/
func writeMCSPDUHeader(mcsPdu MCSDomainPDU, options uint8, w io.Writer) {
core.WriteUInt8((uint8(mcsPdu)<<2)|options, w)
}
func readMCSPDUHeader(options uint8, mcsPdu MCSDomainPDU) bool {
return (options >> 2) == uint8(mcsPdu)
}
type DomainParameters struct {
MaxChannelIds int
MaxUserIds int
MaxTokenIds int
NumPriorities int
MinThoughput int
MaxHeight int
MaxMCSPDUsize int
ProtocolVersion int
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
func NewDomainParameters(
maxChannelIds int,
maxUserIds int,
maxTokenIds int,
numPriorities int,
minThoughput int,
maxHeight int,
maxMCSPDUsize int,
protocolVersion int) *DomainParameters {
return &DomainParameters{maxChannelIds, maxUserIds, maxTokenIds,
numPriorities, minThoughput, maxHeight, maxMCSPDUsize, protocolVersion}
}
func (d *DomainParameters) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteInteger(d.MaxChannelIds, buff)
ber.WriteInteger(d.MaxUserIds, buff)
ber.WriteInteger(d.MaxTokenIds, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(0, buff)
ber.WriteInteger(1, buff)
ber.WriteInteger(d.MaxMCSPDUsize, buff)
ber.WriteInteger(2, buff)
return buff.Bytes()
}
func ReadDomainParameters(r io.Reader) (*DomainParameters, error) {
if !ber.ReadUniversalTag(ber.TAG_SEQUENCE, true, r) {
return nil, errors.New("bad BER tags")
}
d := &DomainParameters{}
ber.ReadLength(r)
d.MaxChannelIds, _ = ber.ReadInteger(r)
d.MaxUserIds, _ = ber.ReadInteger(r)
d.MaxTokenIds, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
ber.ReadInteger(r)
d.MaxMCSPDUsize, _ = ber.ReadInteger(r)
ber.ReadInteger(r)
return d, nil
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @param userData {Buffer}
* @returns {asn1.univ.Sequence}
*/
type ConnectInitial struct {
CallingDomainSelector []byte
CalledDomainSelector []byte
UpwardFlag bool
TargetParameters DomainParameters
MinimumParameters DomainParameters
MaximumParameters DomainParameters
UserData []byte
}
func NewConnectInitial(userData []byte) ConnectInitial {
return ConnectInitial{[]byte{0x1},
[]byte{0x1},
true,
*NewDomainParameters(34, 2, 0, 1, 0, 1, 0xffff, 2),
*NewDomainParameters(1, 1, 1, 1, 0, 1, 0x420, 2),
*NewDomainParameters(0xffff, 0xfc17, 0xffff, 1, 0, 1, 0xffff, 2),
userData}
}
func (c *ConnectInitial) BER() []byte {
buff := &bytes.Buffer{}
ber.WriteOctetstring(string(c.CallingDomainSelector), buff)
ber.WriteOctetstring(string(c.CalledDomainSelector), buff)
ber.WriteBoolean(c.UpwardFlag, buff)
ber.WriteEncodedDomainParams(c.TargetParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MinimumParameters.BER(), buff)
ber.WriteEncodedDomainParams(c.MaximumParameters.BER(), buff)
ber.WriteOctetstring(string(c.UserData), buff)
return buff.Bytes()
}
/**
* @see http://www.itu.int/rec/T-REC-T.125-199802-I/en page 25
* @returns {asn1.univ.Sequence}
*/
type ConnectResponse struct {
result uint8
calledConnectId int
domainParameters *DomainParameters
userData []byte
}
func NewConnectResponse(userData []byte) *ConnectResponse {
return &ConnectResponse{0,
0,
NewDomainParameters(22, 3, 0, 1, 0, 1, 0xfff8, 2),
userData}
}
func ReadConnectResponse(r io.Reader) (*ConnectResponse, error) {
c := &ConnectResponse{}
var err error
_, err = ber.ReadApplicationTag(MCS_TYPE_CONNECT_RESPONSE, r)
if err != nil {
return nil, err
}
c.result, err = ber.ReadEnumerated(r)
if err != nil {
return nil, err
}
c.calledConnectId, err = ber.ReadInteger(r)
c.domainParameters, err = ReadDomainParameters(r)
if err != nil {
return nil, err
}
if !ber.ReadUniversalTag(ber.TAG_OCTET_STRING, false, r) {
return nil, errors.New("invalid expected BER tag")
}
dataLen, _ := ber.ReadLength(r)
c.userData, err = core.ReadBytes(dataLen, r)
return c, err
}
type MCSChannelInfo struct {
ID uint16
Name string
}
type MCS struct {
emission.Emitter
transport core.Transport
recvOpCode MCSDomainPDU
sendOpCode MCSDomainPDU
channels []MCSChannelInfo
}
func NewMCS(t core.Transport, recvOpCode MCSDomainPDU, sendOpCode MCSDomainPDU) *MCS {
m := &MCS{
*emission.NewEmitter(),
t,
recvOpCode,
sendOpCode,
[]MCSChannelInfo{{MCS_GLOBAL_CHANNEL_ID, GLOBAL_CHANNEL_NAME}},
}
m.transport.On("close", func() {
m.Emit("close")
}).On("error", func(err error) {
m.Emit("error", err)
})
return m
}
func (x *MCS) Read(b []byte) (n int, err error) {
return x.transport.Read(b)
}
func (x *MCS) Write(b []byte) (n int, err error) {
return x.transport.Write(b)
}
func (m *MCS) Close() error {
return m.transport.Close()
}
type MCSClient struct {
*MCS
clientCoreData *gcc.ClientCoreData
clientNetworkData *gcc.ClientNetworkData
clientSecurityData *gcc.ClientSecurityData
serverCoreData *gcc.ServerCoreData
serverNetworkData *gcc.ServerNetworkData
serverSecurityData *gcc.ServerSecurityData
channelsConnected int
userId uint16
nbChannelRequested int
}
func NewMCSClient(t core.Transport) *MCSClient {
c := &MCSClient{
MCS: NewMCS(t, SEND_DATA_INDICATION, SEND_DATA_REQUEST),
clientCoreData: gcc.NewClientCoreData(),
clientNetworkData: gcc.NewClientNetworkData(),
clientSecurityData: gcc.NewClientSecurityData(),
userId: 1 + MCS_USERCHANNEL_BASE,
}
c.transport.On("connect", c.connect)
return c
}
func (c *MCSClient) SetClientDesktop(width, height uint16) {
c.clientCoreData.DesktopWidth = width
c.clientCoreData.DesktopHeight = height
}
func (c *MCSClient) SetClientDynvcProtocol() {
c.clientCoreData.EarlyCapabilityFlags = gcc.RNS_UD_CS_SUPPORT_DYNVC_GFX_PROTOCOL
c.clientNetworkData.AddVirtualChannel(drdynvc.ChannelName, drdynvc.ChannelOption)
}
func (c *MCSClient) SetClientRemoteProgram() {
c.clientNetworkData.AddVirtualChannel(rail.ChannelName, rail.ChannelOption)
}
func (c *MCSClient) SetClientCliprdr() {
//c.clientNetworkData.AddVirtualChannel(cliprdr.ChannelName, cliprdr.ChannelOption)
}
func (c *MCSClient) connect(selectedProtocol uint32) {
glog.Debug("mcs client on connect", selectedProtocol)
c.clientCoreData.ServerSelectedProtocol = selectedProtocol
glog.Debugf("clientCoreData:%+v", c.clientCoreData)
glog.Debugf("clientNetworkData:%+v", c.clientNetworkData)
glog.Debugf("clientSecurityData:%+v", c.clientSecurityData)
// sendConnectclientCoreDataInitial
userDataBuff := bytes.Buffer{}
userDataBuff.Write(c.clientCoreData.Pack())
userDataBuff.Write(c.clientNetworkData.Pack())
userDataBuff.Write(c.clientSecurityData.Pack())
ccReq := gcc.MakeConferenceCreateRequest(userDataBuff.Bytes())
connectInitial := NewConnectInitial(ccReq)
connectInitialBerEncoded := connectInitial.BER()
dataBuff := &bytes.Buffer{}
ber.WriteApplicationTag(uint8(MCS_TYPE_CONNECT_INITIAL), len(connectInitialBerEncoded), dataBuff)
dataBuff.Write(connectInitialBerEncoded)
_, err := c.transport.Write(dataBuff.Bytes())
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs sendConnectInitial write error %v", err)))
return
}
glog.Debug("mcs wait for data event")
c.transport.Once("data", c.recvConnectResponse)
}
func (c *MCSClient) recvConnectResponse(s []byte) {
glog.Trace("mcs recvConnectResponse", hex.EncodeToString(s))
cResp, err := ReadConnectResponse(bytes.NewReader(s))
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("ReadConnectResponse %v", err)))
return
}
// record server gcc block
serverSettings := gcc.ReadConferenceCreateResponse(cResp.userData)
for _, v := range serverSettings {
switch v.(type) {
case *gcc.ServerSecurityData:
c.serverSecurityData = v.(*gcc.ServerSecurityData)
case *gcc.ServerCoreData:
c.serverCoreData = v.(*gcc.ServerCoreData)
case *gcc.ServerNetworkData:
c.serverNetworkData = v.(*gcc.ServerNetworkData)
default:
err := errors.New(fmt.Sprintf("unhandle server gcc block %v", reflect.TypeOf(v)))
glog.Error(err)
c.Emit("error", err)
return
}
}
glog.Debugf("serverSecurityData: %+v", c.serverSecurityData)
glog.Debugf("serverCoreData: %+v", c.serverCoreData)
glog.Debugf("serverNetworkData: %+v", c.serverNetworkData)
glog.Debug("mcs sendErectDomainRequest")
c.sendErectDomainRequest()
glog.Debug("mcs sendAttachUserRequest")
c.sendAttachUserRequest()
c.transport.Once("data", c.recvAttachUserConfirm)
}
func (c *MCSClient) sendErectDomainRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ERECT_DOMAIN_REQUEST, 0, buff)
per.WriteInteger(0, buff)
per.WriteInteger(0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) sendAttachUserRequest() {
buff := &bytes.Buffer{}
writeMCSPDUHeader(ATTACH_USER_REQUEST, 0, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvAttachUserConfirm(s []byte) {
glog.Debug("mcs recvAttachUserConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, ATTACH_USER_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_BAD_HEADER"))
return
}
e, err := per.ReadEnumerates(r)
if err != nil {
c.Emit("error", err)
return
}
if e != 0 {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_REJECT_USER'"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
c.userId = userId
c.channels = append(c.channels, MCSChannelInfo{userId, "user"})
c.connectChannels()
}
func (c *MCSClient) connectChannels() {
glog.Debug("mcs connectChannels:", c.channelsConnected, ":", len(c.channels))
if c.channelsConnected == len(c.channels) {
if c.nbChannelRequested < int(c.serverNetworkData.ChannelCount) {
//static virtual channel
chanId := c.serverNetworkData.ChannelIdArray[c.nbChannelRequested]
c.nbChannelRequested++
c.sendChannelJoinRequest(chanId)
c.transport.Once("data", c.recvChannelJoinConfirm)
return
}
c.transport.On("data", c.recvData)
// send client and sever gcc informations callback to sec
clientData := make([]interface{}, 0)
clientData = append(clientData, c.clientCoreData)
clientData = append(clientData, c.clientSecurityData)
clientData = append(clientData, c.clientNetworkData)
serverData := make([]interface{}, 0)
serverData = append(serverData, c.serverCoreData)
serverData = append(serverData, c.serverSecurityData)
glog.Debug("msc connectChannels callback to sec")
c.Emit("connect", clientData, serverData, c.userId, c.channels)
return
}
// sendChannelJoinRequest
glog.Debug("sendChannelJoinRequest:", c.channels[c.channelsConnected].Name)
c.sendChannelJoinRequest(c.channels[c.channelsConnected].ID)
c.transport.Once("data", c.recvChannelJoinConfirm)
}
func (c *MCSClient) sendChannelJoinRequest(channelId uint16) {
glog.Debug("mcs sendChannelJoinRequest", channelId)
buff := &bytes.Buffer{}
writeMCSPDUHeader(CHANNEL_JOIN_REQUEST, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
c.transport.Write(buff.Bytes())
}
func (c *MCSClient) recvData(s []byte) {
glog.Trace("msc on data recvData:", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if readMCSPDUHeader(option, DISCONNECT_PROVIDER_ULTIMATUM) {
c.Emit("error", errors.New("MCS DISCONNECT_PROVIDER_ULTIMATUM"))
c.transport.Close()
return
} else if !readMCSPDUHeader(option, c.recvOpCode) {
c.Emit("error", errors.New("Invalid expected MCS opcode receive data"))
return
}
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
channelId, _ := per.ReadInteger16(r)
per.ReadEnumerates(r)
size, _ := per.ReadLength(r)
// channel ID doesn't match a requested layer
found := false
channelName := ""
for _, channel := range c.channels {
if channel.ID == channelId {
found = true
channelName = channel.Name
break
}
}
if !found {
glog.Error("mcs receive data for an unconnected layer")
return
}
left, err := core.ReadBytes(int(size), r)
if err != nil {
c.Emit("error", errors.New(fmt.Sprintf("mcs recvData get data error %v", err)))
return
}
glog.Debugf("mcs emit channel<%s>", channelName)
c.Emit("sec", channelName, left)
}
func (c *MCSClient) recvChannelJoinConfirm(s []byte) {
glog.Debug("mcs recvChannelJoinConfirm", hex.EncodeToString(s))
r := bytes.NewReader(s)
option, err := core.ReadUInt8(r)
if err != nil {
c.Emit("error", err)
return
}
if !readMCSPDUHeader(option, CHANNEL_JOIN_CONFIRM) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_WAIT_CHANNEL_JOIN_CONFIRM"))
return
}
confirm, _ := per.ReadEnumerates(r)
userId, _ := per.ReadInteger16(r)
userId += MCS_USERCHANNEL_BASE
if c.userId != userId {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_INVALID_USER_ID"))
return
}
channelId, _ := per.ReadInteger16(r)
if (confirm != 0) && (channelId == uint16(MCS_GLOBAL_CHANNEL_ID) || channelId == c.userId) {
c.Emit("error", errors.New("NODE_RDP_PROTOCOL_T125_MCS_SERVER_MUST_CONFIRM_STATIC_CHANNEL"))
return
}
glog.Debug("Confirm channelId:", channelId)
if confirm == 0 {
for i := 0; i < int(c.serverNetworkData.ChannelCount); i++ {
if channelId == c.serverNetworkData.ChannelIdArray[i] {
var t MCSChannelInfo
t.ID = channelId
t.Name = string(c.clientNetworkData.ChannelDefArray[i].Name[:])
c.channels = append(c.channels, t)
}
}
}
c.channelsConnected++
c.connectChannels()
}
func (c *MCSClient) Pack(data []byte, channelId uint16) []byte {
buff := &bytes.Buffer{}
writeMCSPDUHeader(c.sendOpCode, 0, buff)
per.WriteInteger16(c.userId-MCS_USERCHANNEL_BASE, buff)
per.WriteInteger16(channelId, buff)
core.WriteUInt8(0x70, buff)
per.WriteLength(len(data), buff)
core.WriteBytes(data, buff)
glog.Trace("MCSClient write", channelId, ":", hex.EncodeToString(buff.Bytes()))
return buff.Bytes()
}
func (c *MCSClient) Write(data []byte) (n int, err error) {
data = c.Pack(data, c.channels[0].ID)
return c.transport.Write(data)
}
func (c *MCSClient) SendToChannel(channel string, data []byte) (n int, err error) {
channelId := c.channels[0].ID
for _, ch := range c.channels {
if channel == ch.Name {
channelId = ch.ID
break
}
}
data = c.Pack(data, channelId)
return c.transport.Write(data)
}
+203
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package per
import (
"bytes"
"io"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/core"
)
func ReadEnumerates(r io.Reader) (uint8, error) {
return core.ReadUInt8(r)
}
func WriteInteger(n int, w io.Writer) {
if n <= 0xff {
WriteLength(1, w)
core.WriteUInt8(uint8(n), w)
} else if n <= 0xffff {
WriteLength(2, w)
core.WriteUInt16BE(uint16(n), w)
} else {
WriteLength(4, w)
core.WriteUInt32BE(uint32(n), w)
}
}
func ReadInteger16(r io.Reader) (uint16, error) {
return core.ReadUint16BE(r)
}
func WriteInteger16(value uint16, w io.Writer) {
core.WriteUInt16BE(value, w)
}
/**
* @param choice {integer}
* @returns {type.UInt8} choice per encoded
*/
func WriteChoice(choice uint8, w io.Writer) {
core.WriteUInt8(choice, w)
}
/**
* @param value {raw} value to convert to per format
* @returns type objects per encoding value
*/
func WriteLength(value int, w io.Writer) {
if value > 0x7f {
core.WriteUInt16BE(uint16(value|0x8000), w)
} else {
core.WriteUInt8(uint8(value), w)
}
}
func ReadLength(r io.Reader) (uint16, error) {
b, err := core.ReadUInt8(r)
if err != nil {
return 0, nil
}
var size uint16
if b&0x80 > 0 {
b = b &^ 0x80
size = uint16(b) << 8
left, _ := core.ReadUInt8(r)
size += uint16(left)
} else {
size = uint16(b)
}
return size, nil
}
/**
* @param oid {array} oid to write
* @returns {type.Component} per encoded object identifier
*/
func WriteObjectIdentifier(oid []byte, w io.Writer) {
core.WriteUInt8(5, w)
core.WriteByte((oid[0]<<4)&(oid[1]&0x0f), w)
core.WriteByte(oid[2], w)
core.WriteByte(oid[3], w)
core.WriteByte(oid[4], w)
core.WriteByte(oid[5], w)
}
/**
* @param selection {integer}
* @returns {type.UInt8} per encoded selection
*/
func WriteSelection(selection uint8, w io.Writer) {
core.WriteUInt8(selection, w)
}
func WriteNumericString(s string, minValue int, w io.Writer) {
length := len(s)
mLength := minValue
if length >= minValue {
mLength = length - minValue
}
buff := &bytes.Buffer{}
for i := 0; i < length; i += 2 {
c1 := int(s[i])
c2 := 0x30
if i+1 < length {
c2 = int(s[i+1])
}
c1 = (c1 - 0x30) % 10
c2 = (c2 - 0x30) % 10
core.WriteUInt8(uint8((c1<<4)|c2), buff)
}
WriteLength(mLength, w)
w.Write(buff.Bytes())
}
func WritePadding(length int, w io.Writer) {
b := make([]byte, length)
w.Write(b)
}
func WriteNumberOfSet(n int, w io.Writer) {
core.WriteUInt8(uint8(n), w)
}
/**
* @param oStr {String}
* @param minValue {integer} default 0
* @returns {type.Component} per encoded octet stream
*/
func WriteOctetStream(oStr string, minValue int, w io.Writer) {
length := len(oStr)
mlength := minValue
if length-minValue >= 0 {
mlength = length - minValue
}
WriteLength(mlength, w)
w.Write([]byte(oStr)[:length])
}
func ReadChoice(r io.Reader) uint8 {
choice, _ := core.ReadUInt8(r)
return choice
}
func ReadNumberOfSet(r io.Reader) uint8 {
choice, _ := core.ReadUInt8(r)
return choice
}
func ReadInteger(r io.Reader) uint32 {
size, _ := ReadLength(r)
switch size {
case 1:
ret, _ := core.ReadUInt8(r)
return uint32(ret)
case 2:
ret, _ := core.ReadUint16BE(r)
return uint32(ret)
case 4:
ret, _ := core.ReadUInt32BE(r)
return ret
default:
glog.Info("ReadInteger")
}
return 0
}
func ReadObjectIdentifier(r io.Reader, oid []byte) bool {
size, _ := ReadLength(r)
if size != 5 {
return false
}
a_oid := []byte{0, 0, 0, 0, 0, 0}
t12, _ := core.ReadByte(r)
a_oid[0] = t12 >> 4
a_oid[1] = t12 & 0x0f
a_oid[2], _ = core.ReadByte(r)
a_oid[3], _ = core.ReadByte(r)
a_oid[4], _ = core.ReadByte(r)
a_oid[5], _ = core.ReadByte(r)
for i, _ := range oid {
if oid[i] != a_oid[i] {
return false
}
}
return true
}
func ReadOctetStream(r io.Reader, s string, min int) bool {
ln, _ := ReadLength(r)
size := int(ln) + min
if size != len(s) {
return false
}
for i := 0; i < size; i++ {
b, _ := core.ReadByte(r)
if b != s[i] {
return false
}
}
return true
}
+444
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@@ -0,0 +1,444 @@
package tpkt
import (
"bytes"
"encoding/binary"
"encoding/hex"
"fmt"
"reflect"
"strings"
"time"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/nla"
)
// take idea from https://github.com/Madnikulin50/gordp
/**
* Type of tpkt packet
* Fastpath is use to shortcut RDP stack
* @see http://msdn.microsoft.com/en-us/library/cc240621.aspx
* @see http://msdn.microsoft.com/en-us/library/cc240589.aspx
*/
const (
FASTPATH_ACTION_FASTPATH = 0x0
FASTPATH_ACTION_X224 = 0x3
)
/**
* TPKT layer of rdp stack
*/
type TPKT struct {
emission.Emitter
Conn *core.SocketLayer
ntlm *nla.NTLMv2
secFlag byte
lastShortLength int
fastPathListener core.FastPathListener
ntlmSec *nla.NTLMv2Security
}
var OsVersion = map[string]string{
"3.10.511": "Windows NT 3.1",
"3.50.807": "Windows NT 3.5",
"3.10.528": "Windows NT 3.1, Service Pack 3",
"3.51.1057": "Windows NT 3.51",
"4.00.950": "Windows 95",
"4.0.1381": "Windows NT 4.0",
"4.10.1998": "Windows 98",
"4.10.2222": "Windows 98 Second Edition (SE)",
"5.0.2195": "Windows 2000",
"4.90.3000": "Windows Me",
"5.1.2600": "Windows XP/Windows XP, Service Pack 3",
"5.1.2600.1105": "Windows XP, Service Pack 1",
"5.2.3790": "Windows Server 2003/Windows Server 2003 R2/Windows Server 2003, Service Pack 2",
"5.1.2600.2180": "Windows XP, Service Pack 2",
"5.2.3790.1180": "Windows Server 2003, Service Pack 1",
"6.0.6000": "Windows Vista",
"5.2.4500": "Windows Home Server",
"6.0.6001": "Windows Vista, Service Pack 1/Windows Server 2008",
"6.0.6002": "Windows Vista, Service Pack 2/Windows Server 2008, Service Pack 2",
"6.1.7600": "Windows 7/Windows Server 2008 R2",
"6.1.7601": "Windows 7, Service Pack 1/Windows Server 2008 R2, Service Pack 1",
"6.1.8400": "Windows Home Server 2011",
"6.2.9200": "Windows Server 2012/Windows 8",
"6.3.9600": "Windows 8.1/Windows Server 2012 R2",
"10.0.10240": "Windows 10, Version 1507",
"10.0.10586": "Windows 10, Version 1511",
"10.0.14393": "Windows 10, Version 1607/Windows Server 2016, Version 1607",
"10.0.15063": "Windows 10, Version 1703",
"10.0.16299": "Windows 10, Version 1709",
"10.0.17134": "Windows 10, Version 1803",
"10.0.17763": "Windows Server 2019, Version 1809/Windows 10, Version 1809",
"6.0.6003": "Windows Server 2008, Service Pack 2, Rollup KB4489887",
"10.0.18362": "Windows 10, Version 1903",
"10.0.18363": "Windows 10, Version 1909/Windows Server, Version 1909",
"10.0.19041": "Windows 10, Version 2004/Windows Server, Version 2004",
"10.0.19042": "Windows 10, Version 20H2/Windows Server, Version 20H2",
"10.0.19043": "Windows 10, Version 21H1",
"10.0.20348": "Windows Server 2022",
"10.0.22000": "Windows 11, Version 21H2",
"10.0.19044": "Windows 10, Version 21H2",
}
func New(s *core.SocketLayer, ntlm *nla.NTLMv2) *TPKT {
t := &TPKT{
Emitter: *emission.NewEmitter(),
Conn: s,
secFlag: 0,
ntlm: ntlm}
core.StartReadBytes(2, s, t.recvHeader)
return t
}
func (t *TPKT) StartTLS() error {
return t.Conn.StartTLS()
}
func (t *TPKT) StartNLA() error {
err := t.StartTLS()
if err != nil {
glog.Info("start tls failed", err)
return err
}
req := nla.EncodeDERTRequest([]nla.Message{t.ntlm.GetNegotiateMessage()}, nil, nil)
_, err = t.Conn.Write(req)
if err != nil {
glog.Info("send NegotiateMessage", err)
return err
}
resp := make([]byte, 1024)
n, err := t.Conn.Read(resp)
if err != nil {
return fmt.Errorf("read %s", err)
} else {
glog.Debug("StartNLA Read success")
}
return t.recvChallenge(resp[:n])
}
func (t *TPKT) recvChallenge(data []byte) error {
//own add
glog.Debug("start recv challenge......")
info := make(map[string]any)
type NTLMChallenge struct {
Signature [8]byte
MessageType uint32
TargetNameLen uint16
TargetNameMaxLen uint16
TargetNameBufferOffset uint32
NegotiateFlags uint32
ServerChallenge uint64
Reserved uint64
TargetInfoLen uint16
TargetInfoMaxLen uint16
TargetInfoBufferOffset uint32
Version [8]byte
// Payload (variable)
}
var challengeLen = 56
challengeStartOffset := bytes.Index(data, []byte{'N', 'T', 'L', 'M', 'S', 'S', 'P', 0})
if challengeStartOffset == -1 {
}
if len(data) < challengeStartOffset+challengeLen {
return nil
}
var responseData NTLMChallenge
response := data[challengeStartOffset:]
responseBuf := bytes.NewBuffer(response)
err := binary.Read(responseBuf, binary.LittleEndian, &responseData)
if err != nil {
return err
}
// Check if valid NTLM challenge response message structure
if responseData.MessageType != 0x00000002 ||
responseData.Reserved != 0 ||
!reflect.DeepEqual(responseData.Version[4:], []byte{0, 0, 0, 0xF}) {
return nil
}
// Parse: Version
type version struct {
MajorVersion byte
MinorVersion byte
BuildNumber uint16
}
var versionData version
versionBuf := bytes.NewBuffer(responseData.Version[:4])
err = binary.Read(versionBuf, binary.LittleEndian, &versionData)
if err != nil {
return err
}
ProductVersion := fmt.Sprintf("%d.%d.%d", versionData.MajorVersion,
versionData.MinorVersion,
versionData.BuildNumber)
glog.Debug("get product version: Windows", ProductVersion)
info["ProductVersion"] = ProductVersion
v, ok := OsVersion[ProductVersion]
if ok {
info["OsVerion"] = v
glog.Debug("get os version:", v)
} else {
if versionData.BuildNumber >= 22000 {
info["OsVerion"] = fmt.Sprintf("Windows 11, version:%s", ProductVersion)
} else {
info["OsVerion"] = fmt.Sprintf("Windows %s", ProductVersion)
}
}
// Parse: TargetName
targetNameLen := int(responseData.TargetNameLen)
if targetNameLen > 0 {
startIdx := int(responseData.TargetNameBufferOffset)
endIdx := startIdx + targetNameLen
targetName := strings.ReplaceAll(string(response[startIdx:endIdx]), "\x00", "")
info["TargetName"] = targetName
glog.Debug("target Name = ", targetName)
}
// Parse: TargetInfo
AvIDMap := map[uint16]string{
1: "NetBIOSComputerName",
2: "NetBIOSDomainName",
3: "FQDN", // DNS Computer Name
4: "DNSDomainName",
5: "DNSTreeName",
7: "Timestamp",
9: "MsvAvTargetName",
}
type AVPair struct {
AvID uint16
AvLen uint16
// Value (variable)
}
var avPairLen = 4
targetInfoLen := int(responseData.TargetInfoLen)
if targetInfoLen > 0 {
startIdx := int(responseData.TargetInfoBufferOffset)
if startIdx+targetInfoLen > len(response) {
return fmt.Errorf("Invalid TargetInfoLen value")
}
var avPair AVPair
avPairBuf := bytes.NewBuffer(response[startIdx : startIdx+avPairLen])
err = binary.Read(avPairBuf, binary.LittleEndian, &avPair)
if err != nil {
return err
}
currIdx := startIdx
for avPair.AvID != 0 {
if field, exists := AvIDMap[avPair.AvID]; exists {
var value string
r := response[currIdx+avPairLen : currIdx+avPairLen+int(avPair.AvLen)]
if avPair.AvID == 7 {
unixStamp := binary.LittleEndian.Uint64(r)/10000000 - 11644473600
tm := time.Unix(int64(unixStamp), 0)
value = tm.Format("2006-01-02 15:04:05")
} else {
value = strings.ReplaceAll(string(r), "\x00", "")
}
info[field] = value
}
currIdx += avPairLen + int(avPair.AvLen)
if currIdx+avPairLen > startIdx+targetInfoLen {
return fmt.Errorf("Invalid AV_PAIR list")
}
avPairBuf = bytes.NewBuffer(response[currIdx : currIdx+avPairLen])
err = binary.Read(avPairBuf, binary.LittleEndian, &avPair)
if err != nil {
return err
}
}
}
glog.Info("get os info by NLA done !")
glog.Info("=======================================")
for key, value := range info {
glog.Info(key, ":", value)
}
glog.Info("=======================================")
//判断是否存在windows域
if netBiosDomainName, exists := info["NetBIOSDomainName"]; exists {
if netBiosComputerName, exists := info["NetBIOSComputerName"]; exists {
if netBiosDomainName == netBiosComputerName {
info["DNSDomainName"], info["NetBIOSDomainName"] = "WORKGROUP", "WORKGROUP"
//delete(info, "FQDN")
} else {
}
}
}
t.Emit("os_info", info)
// end
glog.Trace("recvChallenge", hex.EncodeToString(data))
tsreq, err := nla.DecodeDERTRequest(data)
if err != nil {
glog.Info("DecodeDERTRequest", err)
return err
}
glog.Debugf("tsreq:%+v", tsreq)
// get pubkey
pubkey, err := t.Conn.TlsPubKey()
glog.Debugf("pubkey=%+v", pubkey)
authMsg, ntlmSec := t.ntlm.GetAuthenticateMessage(tsreq.NegoTokens[0].Data)
t.ntlmSec = ntlmSec
encryptPubkey := ntlmSec.GssEncrypt(pubkey)
req := nla.EncodeDERTRequest([]nla.Message{authMsg}, nil, encryptPubkey)
_, err = t.Conn.Write(req)
if err != nil {
glog.Info("send AuthenticateMessage", err)
return err
}
resp := make([]byte, 1024)
n, err := t.Conn.Read(resp)
if err != nil {
glog.Error("Read:", err)
return fmt.Errorf("read %s", err)
} else {
glog.Debug("recvChallenge Read success")
}
return t.recvPubKeyInc(resp[:n])
}
func (t *TPKT) recvPubKeyInc(data []byte) error {
glog.Trace("recvPubKeyInc", hex.EncodeToString(data))
tsreq, err := nla.DecodeDERTRequest(data)
if err != nil {
glog.Info("DecodeDERTRequest", err)
return err
}
glog.Trace("PubKeyAuth:", tsreq.PubKeyAuth)
//ignore
//pubkey := t.ntlmSec.GssDecrypt([]byte(tsreq.PubKeyAuth))
domain, username, password := t.ntlm.GetEncodedCredentials()
credentials := nla.EncodeDERTCredentials(domain, username, password)
authInfo := t.ntlmSec.GssEncrypt(credentials)
req := nla.EncodeDERTRequest(nil, authInfo, nil)
_, err = t.Conn.Write(req)
if err != nil {
glog.Info("send AuthenticateMessage", err)
return err
}
return nil
}
func (t *TPKT) Read(b []byte) (n int, err error) {
return t.Conn.Read(b)
}
func (t *TPKT) Write(data []byte) (n int, err error) {
buff := &bytes.Buffer{}
core.WriteUInt8(FASTPATH_ACTION_X224, buff)
core.WriteUInt8(0, buff)
core.WriteUInt16BE(uint16(len(data)+4), buff)
buff.Write(data)
glog.Trace("tpkt Write", hex.EncodeToString(buff.Bytes()))
return t.Conn.Write(buff.Bytes())
}
func (t *TPKT) Close() error {
return t.Conn.Close()
}
func (t *TPKT) SetFastPathListener(f core.FastPathListener) {
t.fastPathListener = f
}
func (t *TPKT) SendFastPath(secFlag byte, data []byte) (n int, err error) {
buff := &bytes.Buffer{}
core.WriteUInt8(FASTPATH_ACTION_FASTPATH|((secFlag&0x3)<<6), buff)
core.WriteUInt16BE(uint16(len(data)+3)|0x8000, buff)
buff.Write(data)
glog.Trace("TPTK SendFastPath", hex.EncodeToString(buff.Bytes()))
return t.Conn.Write(buff.Bytes())
}
func (t *TPKT) recvHeader(s []byte, err error) {
glog.Trace("tpkt recvHeader", hex.EncodeToString(s), err)
if err != nil {
t.Emit("error", err)
return
}
r := bytes.NewReader(s)
version, _ := core.ReadUInt8(r)
if version == FASTPATH_ACTION_X224 {
glog.Debug("tptk recvHeader FASTPATH_ACTION_X224, wait for recvExtendedHeader")
core.StartReadBytes(2, t.Conn, t.recvExtendedHeader)
} else {
glog.Debug("[-] !!!! version is not FASTPATH_ACTION_X224, version=", version)
t.secFlag = (version >> 6) & 0x3
length, _ := core.ReadUInt8(r)
t.lastShortLength = int(length)
glog.Debug("last read len:", length)
if t.lastShortLength&0x80 != 0 {
core.StartReadBytes(1, t.Conn, t.recvExtendedFastPathHeader)
} else {
//core.StartReadBytes(1, t.Conn, t.recvExtendedFastPathHeader)
if t.lastShortLength >= 2 {
core.StartReadBytes(t.lastShortLength-2, t.Conn, t.recvFastPath)
} else {
glog.Debug("lastShortLength = 0")
}
}
}
}
func (t *TPKT) recvExtendedHeader(s []byte, err error) {
glog.Trace("tpkt recvExtendedHeader", hex.EncodeToString(s), err)
if err != nil {
return
}
r := bytes.NewReader(s)
size, _ := core.ReadUint16BE(r)
glog.Debug("tpkt wait recvData:", size)
core.StartReadBytes(int(size-4), t.Conn, t.recvData)
}
func (t *TPKT) recvData(s []byte, err error) {
glog.Trace("tpkt recvData", hex.EncodeToString(s), err)
if err != nil {
return
}
t.Emit("data", s)
core.StartReadBytes(2, t.Conn, t.recvHeader)
}
func (t *TPKT) recvExtendedFastPathHeader(s []byte, err error) {
glog.Trace("tpkt recvExtendedFastPathHeader", hex.EncodeToString(s))
r := bytes.NewReader(s)
rightPart, err := core.ReadUInt8(r)
if err != nil {
glog.Error("TPTK recvExtendedFastPathHeader", err)
return
}
leftPart := t.lastShortLength & ^0x80
packetSize := (leftPart << 8) + int(rightPart)
if packetSize == 0 {
fmt.Println("get packetSize,rightPart=", packetSize, rightPart)
t.Emit("close")
} else {
core.StartReadBytes(packetSize-3, t.Conn, t.recvFastPath)
}
}
func (t *TPKT) recvFastPath(s []byte, err error) {
glog.Trace("tpkt recvFastPath")
if err != nil {
return
}
t.fastPathListener.RecvFastPath(t.secFlag, s)
core.StartReadBytes(2, t.Conn, t.recvHeader)
}
+424
View File
@@ -0,0 +1,424 @@
package x224
import (
"bytes"
"encoding/hex"
"errors"
"fmt"
"github.com/shadow1ng/fscan/mylib/grdp/glog"
"github.com/lunixbochs/struc"
"github.com/shadow1ng/fscan/mylib/grdp/core"
"github.com/shadow1ng/fscan/mylib/grdp/emission"
"github.com/shadow1ng/fscan/mylib/grdp/protocol/tpkt"
)
// take idea from https://github.com/Madnikulin50/gordp
/**
* Message type present in X224 packet header
*/
type MessageType byte
const (
TPDU_CONNECTION_REQUEST MessageType = 0xE0
TPDU_CONNECTION_CONFIRM = 0xD0
TPDU_DISCONNECT_REQUEST = 0x80
TPDU_DATA = 0xF0
TPDU_ERROR = 0x70
)
/**
* Type of negotiation present in negotiation packet
*/
type NegotiationType byte
const (
TYPE_RDP_NEG_REQ NegotiationType = 0x01
TYPE_RDP_NEG_RSP = 0x02
TYPE_RDP_NEG_FAILURE = 0x03
)
/**
* Protocols available for x224 layer
*/
const (
PROTOCOL_RDP uint32 = 0x00000000
PROTOCOL_SSL = 0x00000001
PROTOCOL_HYBRID = 0x00000002
PROTOCOL_HYBRID_EX = 0x00000008
)
/**
* Use to negotiate security layer of RDP stack
* In node-rdpjs only ssl is available
* @param opt {object} component type options
* @see request -> http://msdn.microsoft.com/en-us/library/cc240500.aspx
* @see response -> http://msdn.microsoft.com/en-us/library/cc240506.aspx
* @see failure ->http://msdn.microsoft.com/en-us/library/cc240507.aspx
*/
type Negotiation struct {
Type NegotiationType `struc:"byte"`
Flag uint8 `struc:"uint8"`
Length uint16 `struc:"little"`
Result uint32 `struc:"little"`
}
func NewNegotiation() *Negotiation {
return &Negotiation{0, 0, 0x0008 /*constant*/, PROTOCOL_RDP}
}
const (
//The server requires that the client support Enhanced RDP Security (section 5.4) with either TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) or CredSSP (section 5.4.5.2). If only CredSSP was requested then the server only supports TLS.
SSL_REQUIRED_BY_SERVER = 0x00000001
//The server is configured to only use Standard RDP Security mechanisms (section 5.3) and does not support any External Security Protocols (section 5.4.5).
SSL_NOT_ALLOWED_BY_SERVER = 0x00000002
//The server does not possess a valid authentication certificate and cannot initialize the External Security Protocol Provider (section 5.4.5).
SSL_CERT_NOT_ON_SERVER = 0x00000003
//The list of requested security protocols is not consistent with the current security protocol in effect. This error is only possible when the Direct Approach (sections 5.4.2.2 and 1.3.1.2) is used and an External Security Protocol (section 5.4.5) is already being used.
INCONSISTENT_FLAGS = 0x00000004
//The server requires that the client support Enhanced RDP Security (section 5.4) with CredSSP (section 5.4.5.2).
HYBRID_REQUIRED_BY_SERVER = 0x00000005
//The server requires that the client support Enhanced RDP Security (section 5.4) with TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) and certificate-based client authentication.<4>
SSL_WITH_USER_AUTH_REQUIRED_BY_SERVER = 0x00000006
)
/**
* X224 client connection request
* @param opt {object} component type options
* @see http://msdn.microsoft.com/en-us/library/cc240470.aspx
*/
type ClientConnectionRequestPDU struct {
Len uint8
Code MessageType
Padding1 uint16
Padding2 uint16
Padding3 uint8
Cookie []byte
requestedProtocol uint32
ProtocolNeg *Negotiation
}
func NewClientConnectionRequestPDU(cookie []byte, requestedProtocol uint32) *ClientConnectionRequestPDU {
x := ClientConnectionRequestPDU{0, TPDU_CONNECTION_REQUEST, 0, 0, 0,
cookie, requestedProtocol, NewNegotiation()}
x.Len = 6
if len(cookie) > 0 {
x.Len += uint8(len(cookie) + 2)
}
if x.requestedProtocol > PROTOCOL_RDP {
x.Len += 8
}
return &x
}
func (x *ClientConnectionRequestPDU) Serialize() []byte {
buff := &bytes.Buffer{}
core.WriteUInt8(x.Len, buff)
core.WriteUInt8(uint8(x.Code), buff)
core.WriteUInt16BE(x.Padding1, buff)
core.WriteUInt16BE(x.Padding2, buff)
core.WriteUInt8(x.Padding3, buff)
if len(x.Cookie) > 0 {
buff.Write(x.Cookie)
core.WriteUInt8(0x0D, buff)
core.WriteUInt8(0x0A, buff)
}
if x.requestedProtocol > PROTOCOL_RDP {
struc.Pack(buff, x.ProtocolNeg)
}
return buff.Bytes()
}
/**
* X224 Server connection confirm
* @param opt {object} component type options
* @see http://msdn.microsoft.com/en-us/library/cc240506.aspx
*/
type ServerConnectionConfirm struct {
Len uint8
Code MessageType
Padding1 uint16
Padding2 uint16
Padding3 uint8
ProtocolNeg *Negotiation
}
/**
* Header of each data message from x224 layer
* @returns {type.Component}
*/
type DataHeader struct {
Header uint8 `struc:"little"`
MessageType MessageType `struc:"uint8"`
Separator uint8 `struc:"little"`
}
func NewDataHeader() *DataHeader {
return &DataHeader{2, TPDU_DATA /* constant */, 0x80 /*constant*/}
}
/**
* Common X224 Automata
* @param presentation {Layer} presentation layer
*/
type X224 struct {
emission.Emitter
transport core.Transport
requestedProtocol uint32
selectedProtocol uint32
dataHeader *DataHeader
}
func New(t core.Transport) *X224 {
x := &X224{
*emission.NewEmitter(),
t,
PROTOCOL_RDP | PROTOCOL_SSL | PROTOCOL_HYBRID,
PROTOCOL_SSL,
NewDataHeader(),
}
t.On("close", func() {
x.Emit("close")
}).On("error", func(err error) {
x.Emit("error", err)
})
return x
}
func (x *X224) ServerChooseProtocol() uint32 {
return x.selectedProtocol
}
func (x *X224) Read(b []byte) (n int, err error) {
return x.transport.Read(b)
}
func (x *X224) Write(b []byte) (n int, err error) {
buff := &bytes.Buffer{}
err = struc.Pack(buff, x.dataHeader)
if err != nil {
return 0, err
}
buff.Write(b)
glog.Trace("x224 write:", hex.EncodeToString(buff.Bytes()))
return x.transport.Write(buff.Bytes())
}
func (x *X224) Close() error {
return x.transport.Close()
}
func (x *X224) SetRequestedProtocol(p uint32) {
x.requestedProtocol = p
}
func (x *X224) Connect() error {
if x.transport == nil {
return errors.New("no transport")
}
cookie := "Cookie: mstshash=bob"
message := NewClientConnectionRequestPDU([]byte(cookie), x.requestedProtocol)
message.ProtocolNeg.Type = TYPE_RDP_NEG_REQ
message.ProtocolNeg.Result = uint32(x.requestedProtocol)
glog.Debug("x224 sendConnectionRequest", hex.EncodeToString(message.Serialize()))
_, err := x.transport.Write(message.Serialize())
x.transport.Once("data", x.recvConnectionConfirm)
return err
}
func (x *X224) recvConnectionConfirm(s []byte) {
/*
在Windows的远程桌面协议(RDP)交互过程中,NLA是指网络级别身份验证(Network Level Authentication)。NLA是一种用于增强远程桌面连接安全性的机制。在启用了NLA的情况下,客户端必须在建立RDP会话之前通过网络级别的身份验证,这样可以防止未经授权的用户连接到远程桌面服务器。
NLA的优点
提高安全性:在建立RDP会话之前进行身份验证,确保只有经过验证的用户才能连接。
减少资源消耗:因为身份验证是在连接建立之前完成的,可以减少未授权用户消耗的系统资源。
RDP协议中的不同连接类型
RDP协议有几种不同的连接类型,它们在使用NLA方面有所不同:
PROTOCOL_RDP:标准的RDP连接方式。这是最早期的RDP连接类型,不使用任何额外的安全层。
PROTOCOL_SSL:使用SSL/TLS加密的RDP连接方式。这种方式可以增强连接的安全性。
PROTOCOL_HYBRID:混合连接方式,通常指的是使用NLA和TLS结合的连接方式。它先进行网络级别的身份验证(NLA),然后使用TLS加密传输数据。
PROTOCOL_HYBRID_EX:这是PROTOCOL_HYBRID的扩展版本,可能包含额外的安全特性或增强功能,具体细节通常会在相关文档中描述。
NLA与不同连接类型的关系
PROTOCOL_RDP:不使用NLA,因为这是最基本的连接方式。
PROTOCOL_SSL:可以与NLA结合使用。首先通过NLA进行身份验证,然后使用SSL/TLS加密数据传输。
PROTOCOL_HYBRID:使用NLA进行身份验证,然后通过TLS加密数据传输。因此,NLA在这种连接类型中是必需的。
PROTOCOL_HYBRID_EX:作为PROTOCOL_HYBRID的扩展版本,也可以使用NLA进行身份验证,并结合其他安全增强特性。
总的来说,除了最基本的PROTOCOL_RDP之外,其他连接类型(PROTOCOL_SSL、PROTOCOL_HYBRID、PROTOCOL_HYBRID_EX)都可以使用或要求使用NLA来提高连接的安全性。
*/
/*
总体而言,较早的Windows版本(如Windows 2000、Windows XP、Windows Server 2003等)默认使用基本的RDP协议(PROTOCOL_RDP),而现代的Windows版本(如Windows 7及之后的版本)默认启用网络级别身份验证(NLA)并支持SSL/TLS加密,以提高连接的安全性。具体的默认协议如下:
Windows 2000、Windows XP、Windows Server 2003 PROTOCOL_RDP
Windows Vista、Windows Server 2008 PROTOCOL_RDPNLA可配置)
Windows 7、Windows Server 2008 R2 PROTOCOL_HYBRID(默认启用NLA
Windows 8、Windows Server 2012 PROTOCOL_HYBRID(默认启用NLA
Windows 8.1、Windows Server 2012 R2 PROTOCOL_HYBRID(默认启用NLA
Windows 10、Windows Server 2016 PROTOCOL_HYBRID(默认启用NLA
Windows 101809及以上版本)、Windows Server 2019PROTOCOL_HYBRID(默认启用NLA
Windows 11、Windows Server 2022 PROTOCOL_HYBRID(默认启用NLA
*/
glog.Debug("x224 recvConnectionConfirm ", hex.EncodeToString(s))
r := bytes.NewReader(s)
ln, _ := core.ReadUInt8(r)
if ln > 6 {
message := &ServerConnectionConfirm{}
if err := struc.Unpack(bytes.NewReader(s), message); err != nil {
glog.Error("ReadServerConnectionConfirm err", err)
return
}
glog.Debugf("message: %+v", *message.ProtocolNeg)
if message.ProtocolNeg.Type == TYPE_RDP_NEG_FAILURE {
glog.Error(fmt.Sprintf("NODE_RDP_PROTOCOL_X224_NEG_FAILURE with code: %d,see https://msdn.microsoft.com/en-us/library/cc240507.aspx",
message.ProtocolNeg.Result))
//only use Standard RDP Security mechanisms
if message.ProtocolNeg.Result == 2 {
glog.Info("Only use Standard RDP Security mechanisms, Reconnect with Standard RDP")
}
switch message.ProtocolNeg.Result {
case SSL_REQUIRED_BY_SERVER:
// mean need use PROTOCOL_SSL
glog.Info("The server requires that the client support Enhanced RDP Security")
x.Emit("reconnect", PROTOCOL_SSL)
case SSL_NOT_ALLOWED_BY_SERVER:
// mean need to use PROTOCOL_RDP only
glog.Info("The server is configured to only use Standard RDP Security mechanisms")
x.Emit("reconnect", PROTOCOL_RDP)
case SSL_CERT_NOT_ON_SERVER:
glog.Info("The server does not possess a valid authentication certificate and cannot initialize the External Security Protocol Provider")
case INCONSISTENT_FLAGS:
glog.Info("The list of requested security protocols is not consistent with the current security protocol in effect. This error is only possible when the Direct Approach")
case HYBRID_REQUIRED_BY_SERVER:
glog.Info("The server requires that the client support Enhanced RDP Security (section 5.4) with CredSSP (section 5.4.5.2).")
x.Emit("reconnect", PROTOCOL_HYBRID)
case SSL_WITH_USER_AUTH_REQUIRED_BY_SERVER:
glog.Info("The server requires that the client support Enhanced RDP Security (section 5.4) with TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) and certificate-based client authentication.<4>")
x.Emit("reconnect", PROTOCOL_SSL)
////The server requires that the client support Enhanced RDP Security (section 5.4) with either TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) or CredSSP (section 5.4.5.2). If only CredSSP was requested then the server only supports TLS.
// SSL_REQUIRED_BY_SERVER = 0x00000001
//
// //The server is configured to only use Standard RDP Security mechanisms (section 5.3) and does not support any External Security Protocols (section 5.4.5).
// SSL_NOT_ALLOWED_BY_SERVER = 0x00000002
//
// //The server does not possess a valid authentication certificate and cannot initialize the External Security Protocol Provider (section 5.4.5).
// SSL_CERT_NOT_ON_SERVER = 0x00000003
//
// //The list of requested security protocols is not consistent with the current security protocol in effect. This error is only possible when the Direct Approach (sections 5.4.2.2 and 1.3.1.2) is used and an External Security Protocol (section 5.4.5) is already being used.
// INCONSISTENT_FLAGS = 0x00000004
//
// //The server requires that the client support Enhanced RDP Security (section 5.4) with CredSSP (section 5.4.5.2).
// HYBRID_REQUIRED_BY_SERVER = 0x00000005
//
// //The server requires that the client support Enhanced RDP Security (section 5.4) with TLS 1.0, 1.1 or 1.2 (section 5.4.5.1) and certificate-based client authentication.<4>
// SSL_WITH_USER_AUTH_REQUIRED_BY_SERVER = 0x00000006
}
x.Close()
return
}
if message.ProtocolNeg.Type == TYPE_RDP_NEG_RSP {
glog.Info("TYPE_RDP_NEG_RSP", message.ProtocolNeg.Result)
x.selectedProtocol = message.ProtocolNeg.Result
}
} else {
x.selectedProtocol = PROTOCOL_RDP
}
serverChooseProtocol := "other not support protocol"
switch x.selectedProtocol {
case PROTOCOL_RDP:
serverChooseProtocol = "PROTOCOL_RDP"
x.Emit("more_timeout")
case PROTOCOL_SSL:
serverChooseProtocol = "PROTOCOL_SSL"
case PROTOCOL_HYBRID:
serverChooseProtocol = "PROTOCOL_HYBRID"
case PROTOCOL_HYBRID_EX:
serverChooseProtocol = "PROTOCOL_HYBRID_EX"
}
glog.Info("Server choose protocol:", serverChooseProtocol)
//if x.selectedProtocol == PROTOCOL_HYBRID_EX {
// glog.Error("NODE_RDP_PROTOCOL_HYBRID_EX_NOT_SUPPORTED")
// return
//}
if x.selectedProtocol == PROTOCOL_HYBRID_EX {
glog.Info("*** NLA Security selected ***")
err := x.transport.(*tpkt.TPKT).StartNLA()
glog.Debug("nla end, err?:", err)
if err != nil {
x.transport.Emit("close")
glog.Error("start NLA failed:", err)
return
}
x.Emit("connect", uint32(x.selectedProtocol))
return
}
x.transport.On("data", x.recvData)
if x.selectedProtocol == PROTOCOL_RDP {
glog.Info("*** RDP security selected ***")
x.Emit("connect", x.selectedProtocol)
return
}
if x.selectedProtocol == PROTOCOL_SSL {
glog.Info("*** SSL security selected ***")
err := x.transport.(*tpkt.TPKT).StartTLS()
if err != nil {
glog.Error("start tls failed:", err)
return
}
x.Emit("connect", x.selectedProtocol)
return
}
if x.selectedProtocol == PROTOCOL_HYBRID {
glog.Info("*** NLA Security selected ***")
err := x.transport.(*tpkt.TPKT).StartNLA()
glog.Debug("nla end, err?:", err)
if err != nil {
glog.Error("start NLA failed:", err)
return
}
x.Emit("connect", x.selectedProtocol)
return
}
}
func (x *X224) recvData(s []byte) {
glog.Trace("x224 recvData", hex.EncodeToString(s), "emit data")
// x224 header takes 3 bytes
x.Emit("data", s[3:])
}