feat: 完善堡垒机与 Agent 智能运维能力
- 支持 Windows Agent 构建、安装脚本和统一上报协议 - 增强 RDP 剪贴板、虚拟盘和文件传输能力 - 新增 AIOps 上下文工具、告警 RCA trace 落库和回放接口 - 重构 docs 模块文档并补充终端、堡垒机、监控、AI Agent 设计
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package cliprdr
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"log"
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"strings"
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"sync"
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"unicode/utf16"
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)
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// Sender 负责把 CLIPRDR PDU 通过 MCS SendDataRequest 发往指定 channel ID。
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// 由协议栈注入(通常封装 buildMCSSendDataRequest + transport.WriteX224Data + writeMu)。// Logan.Li
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type Sender interface {
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SendChannelPDU(channelID uint16, data []byte) error
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}
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// Handler 实现 RDP 剪贴板虚拟通道(CF_UNICODETEXT / CF_TEXT 文本格式)。
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//
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// - onRemote: 远端剪贴板文本到达时回调(协议栈应转成 WS type=clipboard 帧推给浏览器)
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// - getLocal: 远端请求本地剪贴板时回调取值(协议栈从 inputLoop 维护的本地剪贴板缓存读取)
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//
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// 两个回调都是线程安全的调用点:Handler 内部用 mu 保护自身状态，
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// 调用方负责 Sender 的并发写(writeMu)。
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type Handler struct {
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sender Sender
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channelID uint16
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mu sync.Mutex
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useLongFormatNames bool
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serverCapsReceived bool
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monitorReady bool
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localText string // 本地剪贴板文本(由 SetLocalText 更新，供远端请求时回填)
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suppressNextChange bool // 抑制 echo 回环:远端→本地 触发的本地变更不再回推远端
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onRemote func(text string) // 远端文本到达回调(可能为 nil)
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initialFormatListSent bool // 初始化阶段只允许发送一次空 FormatList，匹配 FreeRDP/IronRDP 时序。// Logan.Li
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}
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// NewHandler 创建剪贴板处理器。
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// - onRemote: 远端剪贴板内容到达时调用(转成 WS clipboard 帧推送浏览器)
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// - getLocal: 已废弃，本地文本请用 SetLocalText 主动设置(浏览器同步剪贴板时写入)
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func NewHandler(onRemote func(text string)) *Handler {
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return &Handler{onRemote: onRemote}
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}
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// Attach 绑定发送通道与会话分配的 channel ID(在 MCS ChannelJoin 成功后调用)。
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// 附加后主动发 CB_CLIP_CAPS 声明客户端能力(必须用 Long Format Names),
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// 否则 Windows 不知道格式协商方式,会忽略后续 FormatList。 // Logan.Li
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func (h *Handler) Attach(sender Sender, channelID uint16) {
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h.mu.Lock()
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h.sender = sender
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h.channelID = channelID
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h.useLongFormatNames = true // 客户端强制 Long Format Names,与发送的 caps 一致
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h.mu.Unlock()
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log.Printf("[cliprdr] attached channelID=%d", channelID)
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}
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// Init 在会话激活后主动发起剪贴板握手。
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// MS-RDPECLIP 规定服务端先发 CB_CLIP_CAPS + CB_MONITOR_READY，但部分 Windows 版本
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// (尤其开启了剪贴板重定向策略的)会等客户端先声明能力。主动发 caps + formatList
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// 可兼容两种情况，不会产生冲突(服务端收到多余的 caps 会忽略)。// Logan.Li
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func (h *Handler) Init() {
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h.mu.Lock()
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if h.sender == nil {
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h.mu.Unlock()
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return
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}
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monitorReady := h.monitorReady
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needInitial := !h.initialFormatListSent
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if needInitial {
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h.initialFormatListSent = true
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}
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h.mu.Unlock()
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if monitorReady {
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr init: server MonitorReady already handled"))
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return
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}
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// 部分 Windows 会先等客户端声明能力；延迟主动初始化兼顾标准时序和真实服务器兼容性。// Logan.Li
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h.sendClipCaps()
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if needInitial {
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h.sendEmptyFormatList()
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}
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr init: proactive caps and initial FormatList sent"))
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}
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// SetLocalText 更新本地剪贴板文本(浏览器把本地剪贴板同步过来时调用)。
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// 设置后会向远端发送 FormatList 通知远端"本地剪贴板有新内容"，
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// 除非 suppress 为 true(用于抑制远端→本地 echo 回环)。
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func (h *Handler) SetLocalText(text string) {
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h.mu.Lock()
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h.localText = text
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suppress := h.suppressNextChange
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h.suppressNextChange = false
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sender := h.sender
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h.mu.Unlock()
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if suppress {
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: local text set with suppress (echo from remote), skip FormatList"))
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return
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}
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if sender != nil {
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h.sendFormatList()
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: local text changed, sent FormatList", "len", len(text)))
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}
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}
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// ChannelID 返回绑定的通道 ID(未 Attach 返回 0)。
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func (h *Handler) ChannelID() uint16 {
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h.mu.Lock()
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defer h.mu.Unlock()
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return h.channelID
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}
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// RequestRemoteText 在用户触发远端 Ctrl+C/Ctrl+X 后主动请求文本内容，
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// 兼容部分 Windows 不主动发送 CB_FORMAT_LIST 的场景。// Logan.Li
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func (h *Handler) RequestRemoteText() {
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h.mu.Lock()
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ready := h.sender != nil
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h.mu.Unlock()
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if !ready {
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return
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}
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h.sendFormatDataRequest(cfUnicodeText)
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}
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// Process 处理从 MCS SendDataIndication 收到的 cliprdr PDU(已去掉 MCS/SEC 头的原始通道数据)。
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// 由协议栈 readLoop 在识别到 cliprdr channel ID 后调用。
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func (h *Handler) Process(data []byte) {
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if len(data) < 8 {
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return
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}
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msgType := binary.LittleEndian.Uint16(data[0:2])
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msgFlags := binary.LittleEndian.Uint16(data[2:4])
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dataLen := binary.LittleEndian.Uint32(data[4:8])
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if int(dataLen) > len(data)-8 {
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log.Printf("[cliprdr] Warn: %s", fmt.Sprintln("cliprdr: PDU dataLen exceeds payload", "dataLen", dataLen, "have", len(data)-8))
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return
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}
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body := data[8 : 8+dataLen]
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr recv", "msgType", msgType, "msgFlags", msgFlags, "dataLen", dataLen))
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switch msgType {
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case msgClipCaps:
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h.processClipCaps(body)
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case msgMonitorReady:
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h.processMonitorReady()
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case msgFormatList:
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h.processFormatList(body)
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case msgFormatListResponse:
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// 远端确认收到本地的 FormatList，无需动作
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if msgFlags&flagResponseOK == 0 {
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log.Printf("[cliprdr] Warn: %s", fmt.Sprintln("cliprdr: FormatListResponse FAIL"))
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}
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case msgFormatDataRequest:
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h.processFormatDataRequest(body)
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case msgFormatDataResponse:
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h.processFormatDataResponse(body, msgFlags)
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case msgLockClipdata, msgUnlockClipdata:
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// 文本模式不处理锁
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default:
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: unhandled msgType", "msgType", msgType))
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}
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}
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// --- CB_CLIP_CAPS(2.2.2.1)-------------------------------------------------
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func (h *Handler) processClipCaps(body []byte) {
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if len(body) < 4 {
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return
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}
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cCapSets := binary.LittleEndian.Uint16(body[0:2])
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offset := 4 // cCapabilitySets(2) + pad1(2)
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for i := 0; i < int(cCapSets); i++ {
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if offset+4 > len(body) {
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break
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}
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capType := binary.LittleEndian.Uint16(body[offset:])
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capLen := binary.LittleEndian.Uint16(body[offset+2:])
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if capType == capsTypeGeneral && capLen >= 12 && offset+12 <= len(body) {
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generalFlags := binary.LittleEndian.Uint32(body[offset+8:])
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h.mu.Lock()
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h.useLongFormatNames = generalFlags&flagUseLongFormatNames != 0
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useLong := h.useLongFormatNames
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h.mu.Unlock()
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: server caps", "generalFlags", generalFlags, "longNames", useLong))
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}
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offset += int(capLen)
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}
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h.mu.Lock()
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h.serverCapsReceived = true
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localReady := h.localText != ""
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ready := h.monitorReady
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h.mu.Unlock()
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// 非标准顺序:MonitorReady 先到时，在拿到 caps 后补发 FormatList
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if ready && localReady {
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h.sendFormatList()
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}
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}
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// --- CB_MONITOR_READY(2.2.2.2)--------------------------------------------
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func (h *Handler) processMonitorReady() {
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: server Monitor Ready"))
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h.mu.Lock()
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h.monitorReady = true
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capsReady := h.serverCapsReceived
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localReady := h.localText != ""
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needInitial := !h.initialFormatListSent
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if needInitial {
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h.initialFormatListSent = true
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}
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h.mu.Unlock()
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// MS-RDPECLIP §1.3.2.1: server 先发 CB_CLIP_CAPS 再发 CB_MONITOR_READY。
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// 拿到 caps 才知道是否用 Long Format Names，故 FormatList 等 caps 就绪后再发。
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h.sendClipCaps()
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if needInitial && !localReady {
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h.sendEmptyFormatList()
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: sent initial empty FormatList"))
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}
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if capsReady && localReady {
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h.sendFormatList()
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}
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}
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// --- Format List(2.2.3)---------------------------------------------------
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func (h *Handler) sendFormatList() {
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h.mu.Lock()
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useLong := h.useLongFormatNames
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h.initialFormatListSent = true
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h.mu.Unlock()
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body := &bytes.Buffer{}
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if useLong {
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// Long Format Name: formatId(4) + null-terminated UTF-16LE name
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binary.Write(body, binary.LittleEndian, uint32(cfUnicodeText))
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binary.Write(body, binary.LittleEndian, uint16(0)) // 空名 = 标准格式
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binary.Write(body, binary.LittleEndian, uint32(cfText))
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binary.Write(body, binary.LittleEndian, uint16(0))
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} else {
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// Short Format Name: formatId(4) + name[32]
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binary.Write(body, binary.LittleEndian, uint32(cfUnicodeText))
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body.Write(make([]byte, 32))
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binary.Write(body, binary.LittleEndian, uint32(cfText))
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body.Write(make([]byte, 32))
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}
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h.sendPDU(msgFormatList, 0, body.Bytes())
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}
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func (h *Handler) sendEmptyFormatList() {
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// 初始化空 FormatList 是 FreeRDP 允许的首包，用来完成剪贴板客户端初始化。// Logan.Li
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h.sendPDU(msgFormatList, 0, nil)
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}
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func (h *Handler) processFormatList(body []byte) {
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formats := h.parseFormatList(body)
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: server FormatList", "formats", formats))
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// 始终回复 OK
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h.sendPDU(msgFormatListResponse, flagResponseOK, nil)
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// 优先请求 Unicode 文本，其次 ANSI
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for _, f := range formats {
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if f == cfUnicodeText {
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h.sendFormatDataRequest(cfUnicodeText)
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return
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}
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}
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for _, f := range formats {
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if f == cfText {
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h.sendFormatDataRequest(cfText)
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return
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}
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}
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}
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func (h *Handler) parseFormatList(body []byte) []uint32 {
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h.mu.Lock()
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useLong := h.useLongFormatNames
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h.mu.Unlock()
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var formats []uint32
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if useLong {
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// Long: formatId(4) + null-term UTF-16LE name
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offset := 0
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for offset+4 <= len(body) {
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formats = append(formats, binary.LittleEndian.Uint32(body[offset:]))
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offset += 4
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// 跳过 name(null-terminated UTF-16LE)
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for offset+1 < len(body) {
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if body[offset] == 0 && body[offset+1] == 0 {
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offset += 2
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break
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}
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offset += 2
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}
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}
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} else {
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// Short: formatId(4) + name[32] = 36 字节/项
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for offset := 0; offset+36 <= len(body); offset += 36 {
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formats = append(formats, binary.LittleEndian.Uint32(body[offset:]))
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}
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}
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return formats
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}
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// --- Format Data Request / Response(2.2.5)-------------------------------
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func (h *Handler) sendFormatDataRequest(formatID uint32) {
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b := make([]byte, 4)
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binary.LittleEndian.PutUint32(b, formatID)
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h.sendPDU(msgFormatDataRequest, 0, b)
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: sent FormatDataRequest", "formatID", formatID))
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}
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func (h *Handler) processFormatDataRequest(body []byte) {
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if len(body) < 4 {
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h.sendPDU(msgFormatDataResponse, flagResponseFail, nil)
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return
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}
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requestedFormat := binary.LittleEndian.Uint32(body[0:4])
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h.mu.Lock()
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text := h.localText
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h.mu.Unlock()
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: server requests format", "formatID", requestedFormat, "localLen", len(text)))
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switch requestedFormat {
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case cfUnicodeText:
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encoded := encodeUTF16LE(text + "\x00")
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h.sendPDU(msgFormatDataResponse, flagResponseOK, encoded)
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case cfText:
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h.sendPDU(msgFormatDataResponse, flagResponseOK, []byte(text+"\x00"))
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default:
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h.sendPDU(msgFormatDataResponse, flagResponseFail, nil)
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}
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}
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func (h *Handler) processFormatDataResponse(body []byte, msgFlags uint16) {
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if msgFlags&flagResponseOK == 0 {
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log.Printf("[cliprdr] Warn: %s", fmt.Sprintln("cliprdr: FormatDataResponse FAIL"))
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return
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}
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// 尝试按 UTF-16LE 解码(CF_UNICODETEXT)
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text := decodeUTF16LE(body)
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text = strings.TrimRight(text, "\x00")
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if text == "" {
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return
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}
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log.Printf("[cliprdr] Debug: %s", fmt.Sprintln("cliprdr: remote clipboard text", "len", len(text)))
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// 标记抑制下一次本地变更(避免 echo 回环:远端→本地触发的本地变更不再推回远端)
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h.mu.Lock()
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h.suppressNextChange = true
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cb := h.onRemote
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h.mu.Unlock()
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if cb != nil {
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cb(text)
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}
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}
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// --- Send helpers --------------------------------------------------------
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func (h *Handler) sendClipCaps() {
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// General capability set: type(2) + length(2) + version(4) + flags(4) = 12
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cap := &bytes.Buffer{}
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binary.Write(cap, binary.LittleEndian, uint16(capsTypeGeneral))
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binary.Write(cap, binary.LittleEndian, uint16(12))
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binary.Write(cap, binary.LittleEndian, uint32(capsVersion2))
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binary.Write(cap, binary.LittleEndian, uint32(flagUseLongFormatNames))
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body := &bytes.Buffer{}
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binary.Write(body, binary.LittleEndian, uint16(1)) // cCapabilitySets
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binary.Write(body, binary.LittleEndian, uint16(0)) // pad1
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body.Write(cap.Bytes())
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h.sendPDU(msgClipCaps, 0, body.Bytes())
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}
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func (h *Handler) sendPDU(msgType, msgFlags uint16, body []byte) {
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h.mu.Lock()
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sender := h.sender
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chID := h.channelID
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h.mu.Unlock()
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if sender == nil {
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return
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}
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buf := &bytes.Buffer{}
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binary.Write(buf, binary.LittleEndian, msgType)
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binary.Write(buf, binary.LittleEndian, msgFlags)
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binary.Write(buf, binary.LittleEndian, uint32(len(body)))
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buf.Write(body)
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if err := sender.SendChannelPDU(chID, buf.Bytes()); err != nil {
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log.Printf("[cliprdr] Warn: %s", fmt.Sprintln("cliprdr: send PDU failed", "msgType", msgType, "err", err))
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}
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}
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// --- UTF-16LE helpers ----------------------------------------------------
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|
||||
func decodeUTF16LE(b []byte) string {
|
||||
if len(b) < 2 {
|
||||
return ""
|
||||
}
|
||||
if len(b)%2 != 0 {
|
||||
b = b[:len(b)-1]
|
||||
}
|
||||
u16 := make([]uint16, len(b)/2)
|
||||
for i := range u16 {
|
||||
u16[i] = binary.LittleEndian.Uint16(b[i*2:])
|
||||
}
|
||||
return string(utf16.Decode(u16))
|
||||
}
|
||||
|
||||
func encodeUTF16LE(s string) []byte {
|
||||
u16 := utf16.Encode([]rune(s))
|
||||
b := make([]byte, len(u16)*2)
|
||||
for i, v := range u16 {
|
||||
binary.LittleEndian.PutUint16(b[i*2:], v)
|
||||
}
|
||||
return b
|
||||
}
|
||||
@@ -0,0 +1,65 @@
|
||||
// Package cliprdr 实现 RDP 剪贴板虚拟通道扩展(MS-RDPECLIP)的客户端侧，
|
||||
// 支持浏览器与远端 Windows 之间的双向文本剪贴板同步。// Logan.Li
|
||||
//
|
||||
// 协议序列(MS-RDPECLIP §1.3.2):
|
||||
//
|
||||
// 初始化:
|
||||
// Server ── CB_CLIP_CAPS ──► Client
|
||||
// Server ── CB_MONITOR_READY ──► Client
|
||||
// Client ── CB_CLIP_CAPS ──► Server
|
||||
// Client ── CB_FORMAT_LIST ──► Server
|
||||
// Server ── CB_FORMAT_LIST_RESPONSE ──► Client
|
||||
//
|
||||
// 远端→本地(远端复制，本地粘贴):
|
||||
// Server ── CB_FORMAT_LIST ──► Client (远端声明可用格式)
|
||||
// Client ── CB_FORMAT_LIST_RESPONSE ──► Server
|
||||
// Client ── CB_FORMAT_DATA_REQUEST ──► Server (本地请求文本数据)
|
||||
// Server ── CB_FORMAT_DATA_RESPONSE ──► Client (远端返回剪贴板内容)
|
||||
//
|
||||
// 本地→远端(本地复制，远端粘贴):
|
||||
// Client ── CB_FORMAT_LIST ──► Server (本地声明可用格式)
|
||||
// Server ── CB_FORMAT_DATA_REQUEST ──► Client (远端请求文本数据)
|
||||
// Client ── CB_FORMAT_DATA_RESPONSE ──► Server (本地返回剪贴板内容)
|
||||
package cliprdr
|
||||
|
||||
// CLIPRDR PDU msgType(MS-RDPECLIP 2.2.1)
|
||||
const (
|
||||
msgMonitorReady = 0x0001
|
||||
msgFormatList = 0x0002
|
||||
msgFormatListResponse = 0x0003
|
||||
msgFormatDataRequest = 0x0004
|
||||
msgFormatDataResponse = 0x0005
|
||||
msgTempDirectory = 0x0006
|
||||
msgClipCaps = 0x0007
|
||||
msgFilecontentsRequest = 0x0008
|
||||
msgFilecontentsResponse = 0x0009
|
||||
msgLockClipdata = 0x000A
|
||||
msgUnlockClipdata = 0x000B
|
||||
)
|
||||
|
||||
// msgFlags(MS-RDPECLIP 2.2.2)
|
||||
const (
|
||||
flagResponseOK = 0x0001
|
||||
flagResponseFail = 0x0002
|
||||
flagAsciiNames = 0x0004
|
||||
)
|
||||
|
||||
// 通用能力集 GeneralFlags(MS-RDPECLIP 2.2.2.1.1.1.1)
|
||||
const (
|
||||
capsTypeGeneral = 0x0001
|
||||
capsVersion2 = 0x00000002
|
||||
flagUseLongFormatNames = 0x00000002
|
||||
)
|
||||
|
||||
// Windows 标准剪贴板格式 ID(WinUser.h)
|
||||
const (
|
||||
cfText = 1 // CF_TEXT ANSI 文本
|
||||
cfUnicodeText = 13 // CF_UNICODETEXT UTF-16 文本
|
||||
)
|
||||
|
||||
// 通道声明常量(供协议栈在 MCS Connect-Initial 里声明通道时复用，避免魔法值分散)
|
||||
const (
|
||||
ChannelName = "cliprdr"
|
||||
// ChannelOptions 与 grdp/FreeRDP 保持一致：INITIALIZED | ENCRYPT_RDP | SHOW_PROTOCOL
|
||||
ChannelOptions = 0x80000000 | 0x40000000 | 0x00200000
|
||||
)
|
||||
@@ -0,0 +1,602 @@
|
||||
package rdpdr
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"log"
|
||||
"path"
|
||||
"strings"
|
||||
"time"
|
||||
"unicode/utf16"
|
||||
)
|
||||
|
||||
const (
|
||||
irpCreate uint32 = 0x00000000
|
||||
irpClose uint32 = 0x00000002
|
||||
irpRead uint32 = 0x00000003
|
||||
irpWrite uint32 = 0x00000004
|
||||
irpQueryInfo uint32 = 0x00000005
|
||||
irpSetInfo uint32 = 0x00000006
|
||||
irpDeviceCtrl uint32 = 0x0000000e
|
||||
irpQueryVolume uint32 = 0x0000000a
|
||||
irpDirControl uint32 = 0x0000000c
|
||||
irpLockControl uint32 = 0x00000011
|
||||
|
||||
irpMnQueryDir uint32 = 0x00000001
|
||||
irpMnNotifyChangeDir uint32 = 0x00000002
|
||||
|
||||
statusSuccess uint32 = 0x00000000
|
||||
statusNoMoreFiles uint32 = 0x80000006
|
||||
statusAccessDenied uint32 = 0xc0000022
|
||||
statusObjectNameNotFound uint32 = 0xc0000034
|
||||
statusNoSuchFile uint32 = 0xc000000f
|
||||
statusFileIsDirectory uint32 = 0xc00000ba
|
||||
statusNotSupported uint32 = 0xc00000bb
|
||||
statusInvalidDeviceReq uint32 = 0xc0000010
|
||||
statusInvalidParameter uint32 = 0xc000000d
|
||||
statusEndOfFile uint32 = 0xc0000011
|
||||
|
||||
fileOpen uint32 = 0x00000001
|
||||
fileCreate uint32 = 0x00000002
|
||||
fileOpenIf uint32 = 0x00000003
|
||||
fileOverwrite uint32 = 0x00000004
|
||||
fileOverwriteIf uint32 = 0x00000005
|
||||
|
||||
fileDirectoryFile uint32 = 0x00000001
|
||||
fileNonDirectoryFile uint32 = 0x00000040
|
||||
|
||||
fileDirectoryInformation uint32 = 1
|
||||
fileFullDirectoryInformation uint32 = 2
|
||||
fileBothDirectoryInformation uint32 = 3
|
||||
fileBasicInformation uint32 = 4
|
||||
fileStandardInformation uint32 = 5
|
||||
fileInternalInformation uint32 = 6
|
||||
fileEaInformation uint32 = 7
|
||||
fileAccessInformation uint32 = 8
|
||||
fileNameInformation uint32 = 9
|
||||
fileNamesInformation uint32 = 12
|
||||
filePositionInformation uint32 = 14
|
||||
fileModeInformation uint32 = 16
|
||||
fileAlignmentInformation uint32 = 17
|
||||
fileEndOfFileInformation uint32 = 20
|
||||
fileNetworkOpenInformation uint32 = 34
|
||||
fileAttributeTagInformation uint32 = 35
|
||||
|
||||
fileFsVolumeInformation uint32 = 1
|
||||
fileFsSizeInformation uint32 = 3
|
||||
fileFsDeviceInformation uint32 = 4
|
||||
fileFsAttributeInformation uint32 = 5
|
||||
fileFsFullSizeInformation uint32 = 7
|
||||
|
||||
fileAttrDirectory uint32 = 0x00000010
|
||||
fileAttrNormal uint32 = 0x00000080
|
||||
fileAttrArchive uint32 = 0x00000020
|
||||
|
||||
fileOpened byte = 0x01
|
||||
fileCreated byte = 0x02
|
||||
fileOverwritten byte = 0x03
|
||||
|
||||
downloadDirName = "Download"
|
||||
uploadDirName = "Upload"
|
||||
)
|
||||
|
||||
const windowsFiletimeOffset = 116444736000000000
|
||||
|
||||
type ioRequest struct {
|
||||
deviceID uint32
|
||||
fileID uint32
|
||||
completionID uint32
|
||||
majorFn uint32
|
||||
minorFn uint32
|
||||
payload []byte
|
||||
}
|
||||
|
||||
type openFile struct {
|
||||
path string
|
||||
name string
|
||||
isDir bool
|
||||
data []byte
|
||||
written bool
|
||||
dirEntries []dirEntry
|
||||
dirIndex int
|
||||
}
|
||||
|
||||
type dirEntry struct {
|
||||
name string
|
||||
isDir bool
|
||||
size uint64
|
||||
}
|
||||
|
||||
func (h *Handler) handleIORequest(body []byte) {
|
||||
if len(body) < 20 {
|
||||
return
|
||||
}
|
||||
req := ioRequest{
|
||||
deviceID: binary.LittleEndian.Uint32(body[0:4]),
|
||||
fileID: binary.LittleEndian.Uint32(body[4:8]),
|
||||
completionID: binary.LittleEndian.Uint32(body[8:12]),
|
||||
majorFn: binary.LittleEndian.Uint32(body[12:16]),
|
||||
minorFn: binary.LittleEndian.Uint32(body[16:20]),
|
||||
payload: body[20:],
|
||||
}
|
||||
log.Printf("[rdpdr] io request device=%d file=%d completion=%d major=0x%x minor=0x%x payload=%d", req.deviceID, req.fileID, req.completionID, req.majorFn, req.minorFn, len(req.payload))
|
||||
switch req.majorFn {
|
||||
case irpCreate:
|
||||
h.handleCreate(req)
|
||||
case irpClose:
|
||||
h.handleClose(req)
|
||||
case irpRead:
|
||||
h.handleRead(req)
|
||||
case irpWrite:
|
||||
h.handleWrite(req)
|
||||
case irpQueryInfo:
|
||||
h.handleQueryInfo(req)
|
||||
case irpSetInfo:
|
||||
h.handleSetInfo(req)
|
||||
case irpDeviceCtrl:
|
||||
h.handleDeviceControl(req)
|
||||
case irpQueryVolume:
|
||||
h.handleQueryVolume(req)
|
||||
case irpDirControl:
|
||||
if req.minorFn == irpMnQueryDir {
|
||||
h.handleQueryDirectory(req)
|
||||
return
|
||||
}
|
||||
if req.minorFn == irpMnNotifyChangeDir {
|
||||
h.handleNotifyChangeDirectory(req)
|
||||
return
|
||||
}
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNotSupported, nil)
|
||||
case irpLockControl:
|
||||
h.handleLockControl(req)
|
||||
default:
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNotSupported, nil)
|
||||
}
|
||||
}
|
||||
|
||||
func (h *Handler) handleCreate(req ioRequest) {
|
||||
var out [5]byte
|
||||
if len(req.payload) < 32 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, out[:])
|
||||
return
|
||||
}
|
||||
disposition := binary.LittleEndian.Uint32(req.payload[20:24])
|
||||
options := binary.LittleEndian.Uint32(req.payload[24:28])
|
||||
pathLen := binary.LittleEndian.Uint32(req.payload[28:32])
|
||||
if uint32(len(req.payload)) < 32+pathLen {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, out[:])
|
||||
return
|
||||
}
|
||||
vpath := normalizeVirtualPath(decodeUTF16(req.payload[32 : 32+pathLen]))
|
||||
isDir := options&fileDirectoryFile != 0
|
||||
kind, name := classifyVirtualPath(vpath)
|
||||
if kind == "missing" {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusObjectNameNotFound, out[:])
|
||||
return
|
||||
}
|
||||
switch kind {
|
||||
case "root", "download", "upload":
|
||||
isDir = true
|
||||
case "file", "upload_file":
|
||||
// Explorer 拖拽复制时可能带上目录相关 CreateOptions，虚拟盘文件必须按真实文件打开。// Logan.Li
|
||||
isDir = false
|
||||
}
|
||||
var initialData []byte
|
||||
if kind == "upload_file" {
|
||||
data, ok := h.getUpload(name)
|
||||
if !ok {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusObjectNameNotFound, out[:])
|
||||
return
|
||||
}
|
||||
initialData = data
|
||||
}
|
||||
if isDir && options&fileNonDirectoryFile != 0 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusFileIsDirectory, out[:])
|
||||
return
|
||||
}
|
||||
if kind == "file" && disposition == fileOpen {
|
||||
// 虚拟 Download 目录只负责接收远端写入，读取历史文件留给上传目录实现。// Logan.Li
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusObjectNameNotFound, out[:])
|
||||
return
|
||||
}
|
||||
info := fileOpened
|
||||
if disposition == fileCreate {
|
||||
info = fileCreated
|
||||
}
|
||||
if disposition == fileOverwrite || disposition == fileOverwriteIf {
|
||||
info = fileOverwritten
|
||||
}
|
||||
fileID := h.storeOpenFile(&openFile{path: vpath, name: name, isDir: isDir, data: initialData})
|
||||
binary.LittleEndian.PutUint32(out[0:4], fileID)
|
||||
out[4] = info
|
||||
log.Printf("[rdpdr] create path=%q fileID=%d dir=%t", vpath, fileID, isDir)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
}
|
||||
|
||||
func (h *Handler) handleClose(req ioRequest) {
|
||||
file, ok := h.removeOpenFile(req.fileID)
|
||||
if ok && !file.isDir && file.written && len(file.data) > 0 && h.onDownload != nil {
|
||||
data := append([]byte(nil), file.data...)
|
||||
h.onDownload(Download{Name: file.name, Data: data})
|
||||
log.Printf("[rdpdr] download captured name=%s size=%d", file.name, len(data))
|
||||
}
|
||||
var out [5]byte
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
}
|
||||
|
||||
func (h *Handler) handleRead(req ioRequest) {
|
||||
if len(req.payload) < 20 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, nil)
|
||||
return
|
||||
}
|
||||
length := int(binary.LittleEndian.Uint32(req.payload[0:4]))
|
||||
offset := int(binary.LittleEndian.Uint64(req.payload[4:12]))
|
||||
file, ok := h.getOpenFile(req.fileID)
|
||||
if !ok || file.isDir {
|
||||
log.Printf("[rdpdr] read missing file=%d offset=%d length=%d", req.fileID, offset, length)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNoSuchFile, nil)
|
||||
return
|
||||
}
|
||||
if length <= 0 {
|
||||
var out [4]byte
|
||||
log.Printf("[rdpdr] read zero file=%d path=%q offset=%d", req.fileID, file.path, offset)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
return
|
||||
}
|
||||
if offset >= len(file.data) {
|
||||
var out [4]byte
|
||||
// Explorer 复制虚拟盘文件时更稳定地接受 0 字节成功读作为 EOF。// Logan.Li
|
||||
log.Printf("[rdpdr] read eof file=%d path=%q offset=%d size=%d", req.fileID, file.path, offset, len(file.data))
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
return
|
||||
}
|
||||
end := offset + length
|
||||
if end > len(file.data) {
|
||||
end = len(file.data)
|
||||
}
|
||||
out := make([]byte, 4+end-offset)
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(end-offset))
|
||||
copy(out[4:], file.data[offset:end])
|
||||
log.Printf("[rdpdr] read file=%d path=%q offset=%d requested=%d returned=%d size=%d", req.fileID, file.path, offset, length, end-offset, len(file.data))
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
}
|
||||
|
||||
func (h *Handler) handleWrite(req ioRequest) {
|
||||
if len(req.payload) < 32 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, nil)
|
||||
return
|
||||
}
|
||||
length := int(binary.LittleEndian.Uint32(req.payload[0:4]))
|
||||
offset := int(binary.LittleEndian.Uint64(req.payload[4:12]))
|
||||
chunk := req.payload[32:]
|
||||
if length > len(chunk) {
|
||||
length = len(chunk)
|
||||
}
|
||||
file, ok := h.getOpenFile(req.fileID)
|
||||
if !ok || file.isDir {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNoSuchFile, nil)
|
||||
return
|
||||
}
|
||||
need := offset + length
|
||||
if need > len(file.data) {
|
||||
next := make([]byte, need)
|
||||
copy(next, file.data)
|
||||
file.data = next
|
||||
}
|
||||
copy(file.data[offset:need], chunk[:length])
|
||||
file.written = true
|
||||
var out [5]byte
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(length))
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
}
|
||||
|
||||
func (h *Handler) handleQueryInfo(req ioRequest) {
|
||||
if len(req.payload) < 4 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, nil)
|
||||
return
|
||||
}
|
||||
infoClass := binary.LittleEndian.Uint32(req.payload[0:4])
|
||||
file, ok := h.getOpenFile(req.fileID)
|
||||
if !ok {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNoSuchFile, nil)
|
||||
return
|
||||
}
|
||||
attrs := fileAttrArchive
|
||||
if file.isDir {
|
||||
attrs = fileAttrDirectory
|
||||
}
|
||||
size := uint64(len(file.data))
|
||||
log.Printf("[rdpdr] query info file=%d class=%d path=%q dir=%t size=%d", req.fileID, infoClass, file.path, file.isDir, size)
|
||||
switch infoClass {
|
||||
case fileBasicInformation:
|
||||
out := make([]byte, 40)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 36)
|
||||
writeFileTimes(out[4:36])
|
||||
binary.LittleEndian.PutUint32(out[36:40], attrs)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileStandardInformation:
|
||||
out := make([]byte, 26)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 22)
|
||||
binary.LittleEndian.PutUint64(out[4:12], align4096(size))
|
||||
binary.LittleEndian.PutUint64(out[12:20], size)
|
||||
binary.LittleEndian.PutUint32(out[20:24], 1)
|
||||
if file.isDir {
|
||||
out[25] = 1
|
||||
}
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileAttributeTagInformation:
|
||||
out := make([]byte, 12)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 8)
|
||||
binary.LittleEndian.PutUint32(out[4:8], attrs)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileInternalInformation:
|
||||
out := make([]byte, 12)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 8)
|
||||
binary.LittleEndian.PutUint64(out[4:12], uint64(req.fileID))
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileEaInformation:
|
||||
out := make([]byte, 8)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 4)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileAccessInformation, fileModeInformation, fileAlignmentInformation:
|
||||
out := make([]byte, 8)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 4)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileNameInformation:
|
||||
name := encodeUTF16(fileDisplayName(file))
|
||||
out := make([]byte, 8+len(name))
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(4+len(name)))
|
||||
binary.LittleEndian.PutUint32(out[4:8], uint32(len(name)))
|
||||
copy(out[8:], name)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case filePositionInformation:
|
||||
out := make([]byte, 12)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 8)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileNetworkOpenInformation:
|
||||
out := make([]byte, 60)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 56)
|
||||
writeFileTimes(out[4:36])
|
||||
binary.LittleEndian.PutUint64(out[36:44], align4096(size))
|
||||
binary.LittleEndian.PutUint64(out[44:52], size)
|
||||
binary.LittleEndian.PutUint32(out[52:56], attrs)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
default:
|
||||
log.Printf("[rdpdr] query info unsupported class=%d file=%d path=%q", infoClass, req.fileID, file.path)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNotSupported, nil)
|
||||
}
|
||||
}
|
||||
|
||||
func (h *Handler) handleSetInfo(req ioRequest) {
|
||||
var out [4]byte
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
}
|
||||
|
||||
func (h *Handler) handleQueryVolume(req ioRequest) {
|
||||
if len(req.payload) < 4 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, nil)
|
||||
return
|
||||
}
|
||||
infoClass := binary.LittleEndian.Uint32(req.payload[0:4])
|
||||
switch infoClass {
|
||||
case fileFsVolumeInformation:
|
||||
label := encodeUTF16(h.driveName)
|
||||
out := make([]byte, 21+len(label))
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(17+len(label)))
|
||||
binary.LittleEndian.PutUint64(out[4:12], filetimeNow())
|
||||
binary.LittleEndian.PutUint32(out[12:16], 0x41494f50)
|
||||
binary.LittleEndian.PutUint32(out[16:20], uint32(len(label)))
|
||||
copy(out[21:], label)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileFsSizeInformation:
|
||||
out := make([]byte, 28)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 24)
|
||||
binary.LittleEndian.PutUint64(out[4:12], 1024*1024)
|
||||
binary.LittleEndian.PutUint64(out[12:20], 1024*1024)
|
||||
binary.LittleEndian.PutUint32(out[20:24], 8)
|
||||
binary.LittleEndian.PutUint32(out[24:28], 512)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileFsDeviceInformation:
|
||||
out := make([]byte, 12)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 8)
|
||||
binary.LittleEndian.PutUint32(out[4:8], 0x00000007)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileFsAttributeInformation:
|
||||
fsName := encodeUTF16("AIOPS")
|
||||
out := make([]byte, 16+len(fsName))
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(12+len(fsName)))
|
||||
binary.LittleEndian.PutUint32(out[4:8], 0x00000007)
|
||||
binary.LittleEndian.PutUint32(out[8:12], 255)
|
||||
binary.LittleEndian.PutUint32(out[12:16], uint32(len(fsName)))
|
||||
copy(out[16:], fsName)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
case fileFsFullSizeInformation:
|
||||
out := make([]byte, 36)
|
||||
binary.LittleEndian.PutUint32(out[0:4], 32)
|
||||
binary.LittleEndian.PutUint64(out[4:12], 1024*1024)
|
||||
binary.LittleEndian.PutUint64(out[12:20], 1024*1024)
|
||||
binary.LittleEndian.PutUint64(out[20:28], 1024*1024)
|
||||
binary.LittleEndian.PutUint32(out[28:32], 8)
|
||||
binary.LittleEndian.PutUint32(out[32:36], 512)
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out)
|
||||
default:
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNotSupported, nil)
|
||||
}
|
||||
}
|
||||
|
||||
func (h *Handler) handleDeviceControl(req ioRequest) {
|
||||
var out [4]byte
|
||||
ioctl := uint32(0)
|
||||
if len(req.payload) >= 12 {
|
||||
ioctl = binary.LittleEndian.Uint32(req.payload[8:12])
|
||||
}
|
||||
// 资源管理器复制时会探测若干 FSCTL；明确返回“不支持”比 invalid parameter 更接近本地盘行为。// Logan.Li
|
||||
log.Printf("[rdpdr] device control file=%d ioctl=0x%x payload=%d", req.fileID, ioctl, len(req.payload))
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidDeviceReq, out[:])
|
||||
}
|
||||
|
||||
func (h *Handler) handleNotifyChangeDirectory(req ioRequest) {
|
||||
// Windows 资源管理器会长期挂起目录变更通知；立即成功返回会触发重复刷新和“地址无效”。// Logan.Li
|
||||
log.Printf("[rdpdr] notify change pending file=%d", req.fileID)
|
||||
}
|
||||
|
||||
func (h *Handler) handleLockControl(req ioRequest) {
|
||||
var out [4]byte
|
||||
// 上传暂存文件是只读内存文件，锁请求直接成功，避免 Explorer 复制流程中断。// Logan.Li
|
||||
log.Printf("[rdpdr] lock control file=%d payload=%d", req.fileID, len(req.payload))
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, out[:])
|
||||
}
|
||||
|
||||
func (h *Handler) handleQueryDirectory(req ioRequest) {
|
||||
if len(req.payload) < 32 {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusInvalidParameter, nil)
|
||||
return
|
||||
}
|
||||
infoClass := binary.LittleEndian.Uint32(req.payload[0:4])
|
||||
initial := req.payload[4] != 0
|
||||
file, ok := h.getOpenFile(req.fileID)
|
||||
if !ok || !file.isDir {
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNoSuchFile, nil)
|
||||
return
|
||||
}
|
||||
if initial {
|
||||
file.dirIndex = 0
|
||||
if file.path == "" {
|
||||
file.dirEntries = []dirEntry{{name: "."}, {name: ".."}, {name: downloadDirName, isDir: true}, {name: uploadDirName, isDir: true}}
|
||||
} else if strings.EqualFold(file.path, uploadDirName) {
|
||||
file.dirEntries = append([]dirEntry{{name: "."}, {name: ".."}}, h.listUploads()...)
|
||||
} else {
|
||||
file.dirEntries = []dirEntry{{name: "."}, {name: ".."}}
|
||||
}
|
||||
}
|
||||
log.Printf("[rdpdr] query dir file=%d class=%d path=%q initial=%t index=%d entries=%d", req.fileID, infoClass, file.path, initial, file.dirIndex, len(file.dirEntries))
|
||||
if file.dirIndex >= len(file.dirEntries) {
|
||||
var out [5]byte
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusNoMoreFiles, out[:])
|
||||
return
|
||||
}
|
||||
entry := file.dirEntries[file.dirIndex]
|
||||
file.dirIndex++
|
||||
h.sendIOCompletion(req.deviceID, req.completionID, statusSuccess, buildDirInfo(infoClass, entry))
|
||||
}
|
||||
|
||||
func buildDirInfo(infoClass uint32, entry dirEntry) []byte {
|
||||
name := encodeUTF16(entry.name)
|
||||
nameWithNull := append(append([]byte(nil), name...), 0, 0)
|
||||
attrs := fileAttrNormal
|
||||
if entry.isDir || entry.name == "." || entry.name == ".." {
|
||||
attrs = fileAttrDirectory
|
||||
}
|
||||
if infoClass == fileNamesInformation {
|
||||
out := make([]byte, 16+len(nameWithNull))
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(12+len(nameWithNull)))
|
||||
binary.LittleEndian.PutUint32(out[12:16], uint32(len(nameWithNull)))
|
||||
copy(out[16:], nameWithNull)
|
||||
return out
|
||||
}
|
||||
fixed := 64
|
||||
if infoClass == fileFullDirectoryInformation {
|
||||
fixed = 68
|
||||
}
|
||||
if infoClass == fileBothDirectoryInformation {
|
||||
fixed = 93
|
||||
}
|
||||
out := make([]byte, 4+fixed+len(nameWithNull))
|
||||
binary.LittleEndian.PutUint32(out[0:4], uint32(fixed+len(nameWithNull)))
|
||||
writeFileTimes(out[12:44])
|
||||
binary.LittleEndian.PutUint64(out[44:52], entry.size)
|
||||
binary.LittleEndian.PutUint64(out[52:60], align4096(entry.size))
|
||||
binary.LittleEndian.PutUint32(out[60:64], attrs)
|
||||
binary.LittleEndian.PutUint32(out[64:68], uint32(len(nameWithNull)))
|
||||
copy(out[4+fixed:], nameWithNull)
|
||||
return out
|
||||
}
|
||||
|
||||
func fileDisplayName(file *openFile) string {
|
||||
if file.name != "" {
|
||||
return file.name
|
||||
}
|
||||
if file.path != "" {
|
||||
parts := strings.Split(file.path, "\\")
|
||||
return parts[len(parts)-1]
|
||||
}
|
||||
return "\\"
|
||||
}
|
||||
|
||||
func classifyVirtualPath(vpath string) (string, string) {
|
||||
if vpath == "" {
|
||||
return "root", ""
|
||||
}
|
||||
parts := strings.Split(vpath, "\\")
|
||||
if len(parts) == 1 && strings.EqualFold(parts[0], downloadDirName) {
|
||||
return "download", downloadDirName
|
||||
}
|
||||
if len(parts) == 1 && strings.EqualFold(parts[0], uploadDirName) {
|
||||
return "upload", uploadDirName
|
||||
}
|
||||
if len(parts) >= 2 && strings.EqualFold(parts[0], downloadDirName) {
|
||||
name := parts[len(parts)-1]
|
||||
if name == "" || name == "." || name == ".." {
|
||||
return "missing", ""
|
||||
}
|
||||
return "file", name
|
||||
}
|
||||
if len(parts) >= 2 && strings.EqualFold(parts[0], uploadDirName) {
|
||||
name := parts[len(parts)-1]
|
||||
if name == "" || name == "." || name == ".." {
|
||||
return "missing", ""
|
||||
}
|
||||
return "upload_file", name
|
||||
}
|
||||
return "missing", ""
|
||||
}
|
||||
|
||||
func normalizeVirtualPath(raw string) string {
|
||||
clean := strings.Trim(strings.ReplaceAll(raw, "/", "\\"), "\\\x00 ")
|
||||
if clean == "" || clean == "." {
|
||||
return ""
|
||||
}
|
||||
parts := strings.FieldsFunc(clean, func(r rune) bool { return r == '\\' })
|
||||
safe := make([]string, 0, len(parts))
|
||||
for _, part := range parts {
|
||||
if part == "" || part == "." || part == ".." {
|
||||
continue
|
||||
}
|
||||
safe = append(safe, part)
|
||||
}
|
||||
return strings.ReplaceAll(path.Clean(strings.Join(safe, "/")), "/", "\\")
|
||||
}
|
||||
|
||||
func encodeUTF16(s string) []byte {
|
||||
u16 := utf16.Encode([]rune(s))
|
||||
out := make([]byte, len(u16)*2)
|
||||
for i, v := range u16 {
|
||||
binary.LittleEndian.PutUint16(out[i*2:], v)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
func decodeUTF16(data []byte) string {
|
||||
u16 := make([]uint16, len(data)/2)
|
||||
for i := range u16 {
|
||||
u16[i] = binary.LittleEndian.Uint16(data[i*2:])
|
||||
}
|
||||
for len(u16) > 0 && u16[len(u16)-1] == 0 {
|
||||
u16 = u16[:len(u16)-1]
|
||||
}
|
||||
return string(utf16.Decode(u16))
|
||||
}
|
||||
|
||||
func writeFileTimes(out []byte) {
|
||||
ft := filetimeNow()
|
||||
for i := 0; i+8 <= len(out); i += 8 {
|
||||
binary.LittleEndian.PutUint64(out[i:i+8], ft)
|
||||
}
|
||||
}
|
||||
|
||||
func filetimeNow() uint64 {
|
||||
return uint64(time.Now().UnixNano()/100) + windowsFiletimeOffset
|
||||
}
|
||||
|
||||
func align4096(v uint64) uint64 {
|
||||
return (v + 4095) &^ 4095
|
||||
}
|
||||
@@ -0,0 +1,109 @@
|
||||
package rdpdr
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"testing"
|
||||
)
|
||||
|
||||
type captureSender struct {
|
||||
data [][]byte
|
||||
}
|
||||
|
||||
func (s *captureSender) SendChannelPDU(_ uint16, data []byte) error {
|
||||
s.data = append(s.data, append([]byte(nil), data...))
|
||||
return nil
|
||||
}
|
||||
|
||||
func TestClassifyVirtualPathUploadFile(t *testing.T) {
|
||||
kind, name := classifyVirtualPath(`Upload\php.ini`)
|
||||
if kind != "upload_file" || name != "php.ini" {
|
||||
t.Fatalf("Upload file should be classified as upload_file, got kind=%q name=%q", kind, name)
|
||||
}
|
||||
}
|
||||
|
||||
func TestHandleCreateUploadFileOpensAsFile(t *testing.T) {
|
||||
sender := &captureSender{}
|
||||
handler := NewHandler("goclient", "AIOps")
|
||||
handler.Attach(sender, 1004)
|
||||
handler.AddUpload("php.ini", []byte("ok"))
|
||||
|
||||
encodedPath := encodeUTF16(`Upload\php.ini`)
|
||||
payload := make([]byte, 32+len(encodedPath))
|
||||
binary.LittleEndian.PutUint32(payload[20:24], fileOpen)
|
||||
binary.LittleEndian.PutUint32(payload[24:28], fileDirectoryFile)
|
||||
binary.LittleEndian.PutUint32(payload[28:32], uint32(len(encodedPath)))
|
||||
copy(payload[32:], encodedPath)
|
||||
|
||||
handler.handleCreate(ioRequest{
|
||||
deviceID: 1,
|
||||
completionID: 7,
|
||||
majorFn: irpCreate,
|
||||
payload: payload,
|
||||
})
|
||||
if len(sender.data) == 0 {
|
||||
t.Fatal("expected create completion")
|
||||
}
|
||||
completion := sender.data[len(sender.data)-1]
|
||||
if len(completion) < 21 {
|
||||
t.Fatalf("completion too short: %d", len(completion))
|
||||
}
|
||||
if status := binary.LittleEndian.Uint32(completion[12:16]); status != statusSuccess {
|
||||
t.Fatalf("expected success, got status=0x%08x", status)
|
||||
}
|
||||
fileID := binary.LittleEndian.Uint32(completion[16:20])
|
||||
file, ok := handler.getOpenFile(fileID)
|
||||
if !ok {
|
||||
t.Fatalf("open file %d not stored", fileID)
|
||||
}
|
||||
if file.isDir {
|
||||
t.Fatalf("upload file opened as directory: %#v", file)
|
||||
}
|
||||
}
|
||||
|
||||
func TestHandleReadEOFReturnsZeroLengthSuccess(t *testing.T) {
|
||||
sender := &captureSender{}
|
||||
handler := NewHandler("goclient", "AIOps")
|
||||
handler.Attach(sender, 1004)
|
||||
fileID := handler.storeOpenFile(&openFile{path: `Upload\x.yaml`, name: "x.yaml", data: []byte("abc")})
|
||||
|
||||
payload := make([]byte, 20)
|
||||
binary.LittleEndian.PutUint32(payload[0:4], 4096)
|
||||
binary.LittleEndian.PutUint64(payload[4:12], 3)
|
||||
handler.handleRead(ioRequest{
|
||||
deviceID: 1,
|
||||
fileID: fileID,
|
||||
completionID: 9,
|
||||
payload: payload,
|
||||
})
|
||||
|
||||
completion := sender.data[len(sender.data)-1]
|
||||
if status := binary.LittleEndian.Uint32(completion[12:16]); status != statusSuccess {
|
||||
t.Fatalf("expected EOF success, got status=0x%08x", status)
|
||||
}
|
||||
if got := binary.LittleEndian.Uint32(completion[16:20]); got != 0 {
|
||||
t.Fatalf("expected zero read length at EOF, got %d", got)
|
||||
}
|
||||
}
|
||||
|
||||
func TestHandleDeviceControlReturnsInvalidDeviceRequest(t *testing.T) {
|
||||
sender := &captureSender{}
|
||||
handler := NewHandler("goclient", "AIOps")
|
||||
handler.Attach(sender, 1004)
|
||||
|
||||
payload := make([]byte, 32)
|
||||
binary.LittleEndian.PutUint32(payload[8:12], 0x000900a8)
|
||||
handler.handleDeviceControl(ioRequest{
|
||||
deviceID: 1,
|
||||
fileID: 2,
|
||||
completionID: 10,
|
||||
payload: payload,
|
||||
})
|
||||
|
||||
completion := sender.data[len(sender.data)-1]
|
||||
if status := binary.LittleEndian.Uint32(completion[12:16]); status != statusInvalidDeviceReq {
|
||||
t.Fatalf("expected invalid device request, got status=0x%08x", status)
|
||||
}
|
||||
if got := binary.LittleEndian.Uint32(completion[16:20]); got != 0 {
|
||||
t.Fatalf("expected empty device control output, got %d", got)
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,388 @@
|
||||
// Package rdpdr 实现 RDP 设备重定向静态虚拟通道的最小握手。// Logan.Li
|
||||
package rdpdr
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"log"
|
||||
"sync"
|
||||
"unicode/utf16"
|
||||
)
|
||||
|
||||
type Sender interface {
|
||||
SendChannelPDU(channelID uint16, data []byte) error
|
||||
}
|
||||
|
||||
const ChannelName = "rdpdr"
|
||||
|
||||
const (
|
||||
componentRDPDR = 0x4472
|
||||
|
||||
pakIDServerAnnounce = 0x496e
|
||||
pakIDClientIDConfirm = 0x4343
|
||||
pakIDClientName = 0x434e
|
||||
pakIDServerCoreCap = 0x5350
|
||||
pakIDClientCoreCap = 0x4350
|
||||
pakIDDeviceListAnnounce = 0x4441
|
||||
pakIDDeviceReply = 0x6472
|
||||
pakIDDeviceIORequest = 0x4952
|
||||
pakIDDeviceIOCompletion = 0x4943
|
||||
pakIDUserLoggedOn = 0x554c
|
||||
|
||||
capGeneralType = 0x0001
|
||||
capDriveType = 0x0004
|
||||
|
||||
deviceTypeDisk = 0x00000008
|
||||
)
|
||||
|
||||
type Download struct {
|
||||
Name string
|
||||
Data []byte
|
||||
}
|
||||
|
||||
type Handler struct {
|
||||
sender Sender
|
||||
channelID uint16
|
||||
clientID uint32
|
||||
gotServerCap bool
|
||||
gotIDConfirm bool
|
||||
serverIOCode1 uint32
|
||||
computerName string
|
||||
driveName string
|
||||
devicePreannounced bool
|
||||
deviceAnnounced bool
|
||||
mu sync.Mutex
|
||||
nextFileID uint32
|
||||
files map[uint32]*openFile
|
||||
uploads map[string][]byte
|
||||
onDownload func(Download)
|
||||
}
|
||||
|
||||
func NewHandler(computerName string, driveName string) *Handler {
|
||||
if computerName == "" {
|
||||
computerName = "goclient"
|
||||
}
|
||||
if driveName == "" {
|
||||
driveName = "AIOPS"
|
||||
}
|
||||
return &Handler{computerName: computerName, driveName: driveName, nextFileID: 1, files: make(map[uint32]*openFile), uploads: make(map[string][]byte)}
|
||||
}
|
||||
|
||||
func (h *Handler) SetDownloadHandler(fn func(Download)) {
|
||||
h.onDownload = fn
|
||||
}
|
||||
|
||||
func (h *Handler) AddUpload(name string, data []byte) {
|
||||
if name == "" || len(data) == 0 {
|
||||
return
|
||||
}
|
||||
h.mu.Lock()
|
||||
h.uploads[name] = append([]byte(nil), data...)
|
||||
h.mu.Unlock()
|
||||
log.Printf("[rdpdr] upload staged name=%s size=%d", name, len(data))
|
||||
}
|
||||
|
||||
func (h *Handler) listUploads() []dirEntry {
|
||||
h.mu.Lock()
|
||||
defer h.mu.Unlock()
|
||||
out := make([]dirEntry, 0, len(h.uploads))
|
||||
for name, data := range h.uploads {
|
||||
out = append(out, dirEntry{name: name, size: uint64(len(data))})
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
func (h *Handler) getUpload(name string) ([]byte, bool) {
|
||||
h.mu.Lock()
|
||||
defer h.mu.Unlock()
|
||||
data, ok := h.uploads[name]
|
||||
if !ok {
|
||||
return nil, false
|
||||
}
|
||||
return append([]byte(nil), data...), true
|
||||
}
|
||||
|
||||
func (h *Handler) Attach(sender Sender, channelID uint16) {
|
||||
h.sender = sender
|
||||
h.channelID = channelID
|
||||
log.Printf("[rdpdr] attached channelID=%d", channelID)
|
||||
}
|
||||
|
||||
func (h *Handler) PreannounceDevices() {
|
||||
h.mu.Lock()
|
||||
if h.devicePreannounced || h.sender == nil || h.channelID == 0 {
|
||||
h.mu.Unlock()
|
||||
return
|
||||
}
|
||||
h.devicePreannounced = true
|
||||
h.mu.Unlock()
|
||||
// 部分 Windows 会在图形首帧后才启动 rdpdr；预公告客户端能力和磁盘设备，尽早完成驱动器重定向。// Logan.Li
|
||||
log.Printf("[rdpdr] preannounce devices client=%s drive=%s", h.computerName, h.driveName)
|
||||
h.sendClientName()
|
||||
h.sendCoreCapResponse()
|
||||
h.sendDeviceList(true)
|
||||
}
|
||||
|
||||
func (h *Handler) Process(data []byte) {
|
||||
if len(data) < 4 {
|
||||
return
|
||||
}
|
||||
component := binary.LittleEndian.Uint16(data[0:2])
|
||||
packetID := binary.LittleEndian.Uint16(data[2:4])
|
||||
body := data[4:]
|
||||
if component != componentRDPDR {
|
||||
log.Printf("[rdpdr] ignore component=0x%x packet=0x%x len=%d", component, packetID, len(data))
|
||||
return
|
||||
}
|
||||
log.Printf("[rdpdr] recv packet=0x%x len=%d", packetID, len(body))
|
||||
switch packetID {
|
||||
case pakIDServerAnnounce:
|
||||
h.handleServerAnnounce(body)
|
||||
case pakIDServerCoreCap:
|
||||
h.handleServerCoreCap(body)
|
||||
case pakIDClientIDConfirm:
|
||||
h.handleClientIDConfirm(body)
|
||||
case pakIDDeviceReply:
|
||||
h.handleDeviceReply(body)
|
||||
case pakIDDeviceIORequest:
|
||||
h.handleIORequest(body)
|
||||
case pakIDUserLoggedOn:
|
||||
h.sendDeviceListOnce()
|
||||
default:
|
||||
log.Printf("[rdpdr] unhandled packet=0x%x len=%d", packetID, len(body))
|
||||
}
|
||||
}
|
||||
|
||||
func (h *Handler) handleServerAnnounce(body []byte) {
|
||||
if len(body) < 8 {
|
||||
return
|
||||
}
|
||||
h.clientID = binary.LittleEndian.Uint32(body[4:8])
|
||||
log.Printf("[rdpdr] server announce clientID=%d version=%d.%d", h.clientID, binary.LittleEndian.Uint16(body[0:2]), binary.LittleEndian.Uint16(body[2:4]))
|
||||
|
||||
buf := make([]byte, 12)
|
||||
binary.LittleEndian.PutUint16(buf[0:2], componentRDPDR)
|
||||
binary.LittleEndian.PutUint16(buf[2:4], pakIDClientIDConfirm)
|
||||
binary.LittleEndian.PutUint16(buf[4:6], 1)
|
||||
binary.LittleEndian.PutUint16(buf[6:8], 0x000c)
|
||||
binary.LittleEndian.PutUint32(buf[8:12], h.clientID)
|
||||
h.send(buf)
|
||||
h.sendClientName()
|
||||
}
|
||||
|
||||
func (h *Handler) sendClientName() {
|
||||
runes := utf16.Encode([]rune(h.computerName + "\x00"))
|
||||
name := make([]byte, len(runes)*2)
|
||||
for i, r := range runes {
|
||||
binary.LittleEndian.PutUint16(name[i*2:], r)
|
||||
}
|
||||
buf := make([]byte, 16+len(name))
|
||||
binary.LittleEndian.PutUint16(buf[0:2], componentRDPDR)
|
||||
binary.LittleEndian.PutUint16(buf[2:4], pakIDClientName)
|
||||
binary.LittleEndian.PutUint32(buf[4:8], 1)
|
||||
binary.LittleEndian.PutUint32(buf[12:16], uint32(len(name)))
|
||||
copy(buf[16:], name)
|
||||
h.send(buf)
|
||||
}
|
||||
|
||||
func (h *Handler) handleServerCoreCap(body []byte) {
|
||||
if len(body) < 4 {
|
||||
return
|
||||
}
|
||||
count := binary.LittleEndian.Uint16(body[0:2])
|
||||
offset := 4
|
||||
for i := 0; i < int(count) && offset+8 <= len(body); i++ {
|
||||
capType := binary.LittleEndian.Uint16(body[offset:])
|
||||
capLen := int(binary.LittleEndian.Uint16(body[offset+2:]))
|
||||
if capLen < 8 || offset+capLen > len(body) {
|
||||
break
|
||||
}
|
||||
if capType == capGeneralType && capLen >= 24 {
|
||||
h.serverIOCode1 = binary.LittleEndian.Uint32(body[offset+20 : offset+24])
|
||||
}
|
||||
offset += capLen
|
||||
}
|
||||
h.gotServerCap = true
|
||||
h.trySendReady()
|
||||
}
|
||||
|
||||
func (h *Handler) handleClientIDConfirm(body []byte) {
|
||||
if len(body) >= 8 {
|
||||
h.clientID = binary.LittleEndian.Uint32(body[4:8])
|
||||
}
|
||||
h.gotIDConfirm = true
|
||||
h.trySendReady()
|
||||
}
|
||||
|
||||
func (h *Handler) trySendReady() {
|
||||
if !h.gotServerCap || !h.gotIDConfirm {
|
||||
return
|
||||
}
|
||||
h.sendCoreCapResponse()
|
||||
// 能力协商完成后立即公告虚拟盘，避免首次登录后资源管理器等待网络位置刷新。// Logan.Li
|
||||
h.sendDeviceListOnce()
|
||||
}
|
||||
|
||||
func (h *Handler) sendCoreCapResponse() {
|
||||
const generalCapLen = 44
|
||||
const driveCapLen = 8
|
||||
buf := bytes.Buffer{}
|
||||
writeLE16(&buf, componentRDPDR)
|
||||
writeLE16(&buf, pakIDClientCoreCap)
|
||||
writeLE16(&buf, 2)
|
||||
writeLE16(&buf, 0)
|
||||
|
||||
writeLE16(&buf, capGeneralType)
|
||||
writeLE16(&buf, generalCapLen)
|
||||
writeLE32(&buf, 2)
|
||||
writeLE32(&buf, 0)
|
||||
writeLE32(&buf, 0)
|
||||
writeLE16(&buf, 1)
|
||||
writeLE16(&buf, 0x000c)
|
||||
ioCode1 := h.serverIOCode1 & 0x0000ffff
|
||||
if ioCode1 == 0 {
|
||||
ioCode1 = 0x0000ffff
|
||||
}
|
||||
writeLE32(&buf, ioCode1)
|
||||
writeLE32(&buf, 0)
|
||||
writeLE32(&buf, 0x00000007)
|
||||
writeLE32(&buf, 0x00000001)
|
||||
writeLE32(&buf, 0)
|
||||
writeLE32(&buf, 0)
|
||||
|
||||
writeLE16(&buf, capDriveType)
|
||||
writeLE16(&buf, driveCapLen)
|
||||
writeLE32(&buf, 2)
|
||||
h.send(buf.Bytes())
|
||||
}
|
||||
|
||||
func (h *Handler) sendDeviceList(includeDevices bool) {
|
||||
deviceData := []byte(nil)
|
||||
deviceCount := uint32(0)
|
||||
totalLen := 8
|
||||
if includeDevices {
|
||||
deviceCount = 1
|
||||
deviceData = []byte(h.driveName)
|
||||
totalLen += 20 + len(deviceData)
|
||||
}
|
||||
if deviceCount == 0 {
|
||||
// FreeRDP 在没有预登录设备时直接跳过空公告，避免 Windows 记录一个无设备列表。// Logan.Li
|
||||
log.Printf("[rdpdr] skip empty device list announce")
|
||||
return
|
||||
}
|
||||
buf := make([]byte, totalLen)
|
||||
binary.LittleEndian.PutUint16(buf[0:2], componentRDPDR)
|
||||
binary.LittleEndian.PutUint16(buf[2:4], pakIDDeviceListAnnounce)
|
||||
binary.LittleEndian.PutUint32(buf[4:8], deviceCount)
|
||||
if includeDevices {
|
||||
// 公告一个磁盘设备，Windows 里显示为 \\goclient\AIOPS。// Logan.Li
|
||||
binary.LittleEndian.PutUint32(buf[8:12], deviceTypeDisk)
|
||||
binary.LittleEndian.PutUint32(buf[12:16], 1)
|
||||
copy(buf[16:24], []byte(dosDeviceName(h.driveName)))
|
||||
binary.LittleEndian.PutUint32(buf[24:28], uint32(len(deviceData)))
|
||||
copy(buf[28:], deviceData)
|
||||
}
|
||||
h.send(buf)
|
||||
log.Printf("[rdpdr] device list announced devices=%d name=%s", deviceCount, h.driveName)
|
||||
}
|
||||
|
||||
func (h *Handler) sendDeviceListOnce() {
|
||||
h.mu.Lock()
|
||||
if h.deviceAnnounced {
|
||||
h.mu.Unlock()
|
||||
return
|
||||
}
|
||||
h.deviceAnnounced = true
|
||||
h.mu.Unlock()
|
||||
h.sendDeviceList(true)
|
||||
}
|
||||
|
||||
func dosDeviceName(name string) string {
|
||||
if name == "" {
|
||||
return "AIOPS"
|
||||
}
|
||||
if len(name) > 8 {
|
||||
return name[:8]
|
||||
}
|
||||
return name
|
||||
}
|
||||
|
||||
func (h *Handler) send(data []byte) {
|
||||
if h.sender == nil || h.channelID == 0 {
|
||||
return
|
||||
}
|
||||
if err := h.sender.SendChannelPDU(h.channelID, data); err != nil {
|
||||
log.Printf("[rdpdr] send failed: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
func (h *Handler) sendIOCompletion(deviceID, completionID, status uint32, output []byte) {
|
||||
buf := make([]byte, 16+len(output))
|
||||
binary.LittleEndian.PutUint16(buf[0:2], componentRDPDR)
|
||||
binary.LittleEndian.PutUint16(buf[2:4], pakIDDeviceIOCompletion)
|
||||
binary.LittleEndian.PutUint32(buf[4:8], deviceID)
|
||||
binary.LittleEndian.PutUint32(buf[8:12], completionID)
|
||||
binary.LittleEndian.PutUint32(buf[12:16], status)
|
||||
copy(buf[16:], output)
|
||||
h.send(buf)
|
||||
}
|
||||
|
||||
func (h *Handler) allocFileID() uint32 {
|
||||
h.mu.Lock()
|
||||
defer h.mu.Unlock()
|
||||
id := h.nextFileID
|
||||
h.nextFileID++
|
||||
return id
|
||||
}
|
||||
|
||||
func (h *Handler) storeOpenFile(file *openFile) uint32 {
|
||||
id := h.allocFileID()
|
||||
h.mu.Lock()
|
||||
h.files[id] = file
|
||||
h.mu.Unlock()
|
||||
return id
|
||||
}
|
||||
|
||||
func (h *Handler) getOpenFile(id uint32) (*openFile, bool) {
|
||||
h.mu.Lock()
|
||||
defer h.mu.Unlock()
|
||||
file, ok := h.files[id]
|
||||
return file, ok
|
||||
}
|
||||
|
||||
func (h *Handler) removeOpenFile(id uint32) (*openFile, bool) {
|
||||
h.mu.Lock()
|
||||
defer h.mu.Unlock()
|
||||
file, ok := h.files[id]
|
||||
if ok {
|
||||
delete(h.files, id)
|
||||
}
|
||||
return file, ok
|
||||
}
|
||||
|
||||
func (h *Handler) handleDeviceReply(body []byte) {
|
||||
if len(body) < 8 {
|
||||
return
|
||||
}
|
||||
deviceID := binary.LittleEndian.Uint32(body[0:4])
|
||||
status := binary.LittleEndian.Uint32(body[4:8])
|
||||
if status == statusSuccess {
|
||||
h.mu.Lock()
|
||||
h.deviceAnnounced = true
|
||||
h.mu.Unlock()
|
||||
}
|
||||
log.Printf("[rdpdr] device reply deviceID=%d status=0x%08x", deviceID, status)
|
||||
}
|
||||
|
||||
func writeLE16(w *bytes.Buffer, v uint16) {
|
||||
_ = binary.Write(w, binary.LittleEndian, v)
|
||||
}
|
||||
|
||||
func writeLE32(w *bytes.Buffer, v uint32) {
|
||||
_ = binary.Write(w, binary.LittleEndian, v)
|
||||
}
|
||||
|
||||
func (h *Handler) String() string {
|
||||
return fmt.Sprintf("rdpdr(channel=%d)", h.channelID)
|
||||
}
|
||||
Reference in new issue
Block a user