{"id":92122,"date":"2026-08-09T12:16:50","date_gmt":"2026-08-09T04:16:50","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/92122.html"},"modified":"2026-08-09T12:16:50","modified_gmt":"2026-08-09T04:16:50","slug":"tcpip-sys-%e4%bc%a0%e8%be%93%e5%b1%82-tcp-%e8%af%a6%e7%bb%86%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/92122.html","title":{"rendered":"tcpip.sys \u4f20\u8f93\u5c42 (TCP) \u8be6\u7ec6\u5206\u6790"},"content":{"rendered":"

tcpip.sys \u4f20\u8f93\u5c42 (TCP) \u8be6\u7ec6\u5206\u6790<\/h2>\n

\u76ee\u5f55<\/h3>\n
  • \u6982\u8ff0<\/li>\n
  • TCP \u5c42\u6574\u4f53\u67b6\u6784<\/li>\n
  • TCP \u62a5\u6587\u683c\u5f0f<\/li>\n
  • TCP \u72b6\u6001\u673a<\/li>\n
  • \u8fde\u63a5\u7aef\u70b9\u7ed3\u6784 (CONNECTION_ENDPOINT)<\/li>\n
  • TDI_BUCKET \u4e0e IRP \u961f\u5217\u6a21\u578b<\/li>\n
  • \u8fde\u63a5\u7ba1\u7406<\/li>\n
  • \u76d1\u542c\u4e0e\u63a5\u53d7<\/li>\n
  • \u6570\u636e\u53d1\u9001\u8def\u5f84<\/li>\n
  • \u6570\u636e\u63a5\u6536\u8def\u5f84<\/li>\n
  • \u4e8b\u4ef6\u5904\u7406\u5668<\/li>\n
  • lwIP \u7c98\u5408\u5c42\u4e0e tcpip \u7ebf\u7a0b\u6a21\u578b<\/li>\n
  • \u65ad\u5f00\u4e0e\u6e05\u7406<\/li>\n
  • \u5de5\u4f5c\u6d41\u7a0b\u56fe<\/li>\n
  • \u6570\u636e\u6d41\u56fe<\/li>\n
  • \u5173\u952e\u51fd\u6570\u7d22\u5f15<\/li>\n
    \n

    1. \u6982\u8ff0<\/h3>\n

    TCP (Transmission Control Protocol，\u4f20\u8f93\u63a7\u5236\u534f\u8bae) \u662f TCP\/IP \u534f\u8bae\u6808\u4e2d\u9762\u5411\u8fde\u63a5\u7684\u53ef\u9760\u4f20\u8f93\u534f\u8bae，\u63d0\u4f9b\u6709\u5e8f\u3001\u53ef\u9760\u3001\u5168\u53cc\u5de5\u7684\u5b57\u8282\u6d41\u670d\u52a1\u3002\u5728 ReactOS tcpip.sys \u4e2d，TCP \u5c42\u4f4d\u4e8e TDI \u63a5\u53e3\u4e0e IP \u5c42\u4e4b\u95f4\u3002<\/p>\n

    1.1 \u67b6\u6784\u7279\u70b9<\/h4>\n

    ReactOS \u7684 TCP \u5b9e\u73b0\u91c7\u7528\u5206\u5c42\u7ed3\u6784：<\/p>\n

  • TDI \u5305\u88c5\u5c42 (ip\/transport\/tcp\/)：\u7ba1\u7406 CONNECTION_ENDPOINT\u3001TDI_BUCKET IRP \u961f\u5217，\u9762\u5411 TDI \u63a5\u53e3<\/li>\n
  • lwIP \u7c98\u5408\u5c42 (ip\/lwip_glue\/tcp.c)：\u901a\u8fc7 LibTCP* \u51fd\u6570\u6865\u63a5\u5230 lwIP<\/li>\n
  • lwIP \u6838\u5fc3 (lwip\/src\/core\/tcp*.c)：\u5b9e\u73b0\u5b8c\u6574\u7684 TCP \u72b6\u6001\u673a\u3001\u62e5\u585e\u63a7\u5236\u3001\u91cd\u4f20\u7b49<\/li>\n

    1.2 TCP \u7279\u6027<\/h4>\n\n\u7279\u6027\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n
    \u9762\u5411\u8fde\u63a5<\/td>\n\u4e09\u6b21\u63e1\u624b\u5efa\u7acb\u8fde\u63a5，\u56db\u6b21\u6325\u624b\u65ad\u5f00<\/td>\n<\/tr>\n
    \u53ef\u9760\u4f20\u8f93<\/td>\n\u786e\u8ba4 (ACK) + \u8d85\u65f6\u91cd\u4f20<\/td>\n<\/tr>\n
    \u6709\u5e8f\u4ea4\u4ed8<\/td>\n\u5e8f\u53f7\u673a\u5236\u4fdd\u8bc1\u5b57\u8282\u6d41\u6709\u5e8f<\/td>\n<\/tr>\n
    \u6d41\u91cf\u63a7\u5236<\/td>\n\u6ed1\u52a8\u7a97\u53e3 + \u7a97\u53e3\u901a\u544a<\/td>\n<\/tr>\n
    \u62e5\u585e\u63a7\u5236<\/td>\n\u6162\u542f\u52a8 + \u62e5\u585e\u907f\u514d + \u5feb\u901f\u91cd\u4f20\/\u6062\u590d<\/td>\n<\/tr>\n
    \u5168\u53cc\u5de5<\/td>\n\u53cc\u65b9\u53ef\u540c\u65f6\u6536\u53d1<\/td>\n<\/tr>\n
    \u5b57\u8282\u6d41<\/td>\n\u65e0\u62a5\u6587\u8fb9\u754c，\u9762\u5411\u5b57\u8282\u6d41<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    2. TCP \u5c42\u6574\u4f53\u67b6\u6784<\/h3>\n

    2.1 \u4e09\u5c42\u7ed3\u6784<\/h4>\n

    \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n\u2502 TDI \u63a5\u53e3\u5c42 (\u4e0a\u5c42: AFD.sys \/ TDI \u5ba2\u6237\u7aef) \u2502
    \n\u2502 TDI_CONNECT \/ TDI_LISTEN \/ TDI_ACCEPT \u2502
    \n\u2502 TDI_SEND \/ TDI_RECEIVE \/ TDI_DISCONNECT \u2502
    \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
    \n \u2502
    \n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25bc\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n\u2502 TCP \u5305\u88c5\u5c42 (ip\/transport\/tcp\/) \u2190\u2605 \u2502
    \n\u2502 \u2502
    \n\u2502 tcp.c : TCPSocket\/TCPConnect\/TCPSendData\/TCPReceiveData
    \n\u2502 accept.c : TCPListen\/TCPAccept\/TCPAbortListenForSocket \u2502
    \n\u2502 event.c : TCP*EventHandlers \/ Flush*Queue \u2502
    \n\u2502 if.c : \u63a5\u53e3\u66f4\u65b0 (TCPUpdateInterface*) \u2502
    \n\u2502 \u2502
    \n\u2502 \u6838\u5fc3\u5bf9\u8c61: CONNECTION_ENDPOINT + TDI_BUCKET \u961f\u5217 \u2502
    \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
    \n \u2502 LibTCP* \u8c03\u7528
    \n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25bc\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n\u2502 lwIP \u7c98\u5408\u5c42 (ip\/lwip_glue\/tcp.c) \u2502
    \n\u2502 LibTCPSocket\/LibTCPConnect\/LibTCPSend\/LibTCPListen… \u2502
    \n\u2502 \u901a\u8fc7 tcpip_callback \u6392\u961f\u5230 tcpip \u7ebf\u7a0b \u2502
    \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
    \n \u2502 lwIP raw API
    \n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25bc\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n\u2502 lwIP TCP \u6838\u5fc3 (lwip\/src\/core\/tcp.c\/tcp_in.c\/tcp_out.c) \u2502
    \n\u2502 struct tcp_pcb (\u534f\u8bae\u63a7\u5236\u5757) \u2502
    \n\u2502 \u72b6\u6001\u673a \/ \u91cd\u4f20 \/ \u62e5\u585e\u63a7\u5236 \/ \u6ed1\u52a8\u7a97\u53e3 \u2502
    \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u252c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
    \n \u2502 LibIPInsertPacket \/ tcp_output
    \n\u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u25bc\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n\u2502 IP \u7f51\u7edc\u5c42 \u2502
    \n\u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518<\/p>\n

    2.2 \u6e90\u7801\u6587\u4ef6<\/h4>\n\n\u6e90\u6587\u4ef6\u804c\u8d23<\/tr>\n\n\n\n\n\n\n\n\n
    ip\/transport\/tcp\/tcp.c<\/td>\n\u6838\u5fc3：TCPSocket\/TCPConnect\/TCPSendData\/TCPReceiveData\/TCPDisconnect<\/td>\n<\/tr>\n
    ip\/transport\/tcp\/accept.c<\/td>\n\u76d1\u542c\/\u63a5\u53d7：TCPListen\/TCPAccept\/TCPCheckPeerForAccept<\/td>\n<\/tr>\n
    ip\/transport\/tcp\/event.c<\/td>\n\u4e8b\u4ef6\u5904\u7406：TCPEventHandlers\u3001FlushQueue<\/td>\n<\/tr>\n
    ip\/transport\/tcp\/if.c<\/td>\n\u63a5\u53e3\u7ed1\u5b9a：TCPUpdateInterfaceIPInformation\/LinkStatus<\/td>\n<\/tr>\n
    ip\/lwip_glue\/tcp.c<\/td>\nlwIP \u6865\u63a5：LibTCP* \u7cfb\u5217\u51fd\u6570<\/td>\n<\/tr>\n
    include\/tcpcore.h<\/td>\n\u4fdd\u7559\u7684 Linux 2.4.20 \u79fb\u690d\u7ed3\u6784 (sk_buff\/tcp_opt)<\/td>\n<\/tr>\n
    include\/tcp.h<\/td>\nTCP \u5934\u3001CONNECTION_ENDPOINT \u58f0\u660e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    2.3 \u5386\u53f2：Linux \u79fb\u690d vs lwIP<\/h4>\n

    \u6ce8\u610f: ReactOS \u65e9\u671f\u5c06 Linux \u5185\u6838 2.4.20 \u7684 TCP \u5b9e\u73b0\u79fb\u690d\u5230 include\/tcpcore.h
    \n (\u542b struct sk_buff \/ struct tcp_opt \/ struct sock \u5b8c\u6574\u7ed3\u6784)\u3002
    \n \u5f53\u524d\u5b9e\u9645\u4f7f\u7528\u7684 TCP \u534f\u8bae\u5b9e\u73b0\u662f lwIP 2.x (\u901a\u8fc7 LibTCP* \u7c98\u5408\u5c42),
    \n tcpcore.h \u4ecd\u4fdd\u7559\u5728\u5934\u6587\u4ef6\u6811\u4e2d\u4f46\u4e0d\u518d\u662f\u6d3b\u52a8\u5b9e\u73b0\u3002<\/p>\n

    \n

    3. TCP \u62a5\u6587\u683c\u5f0f<\/h3>\n

    \u5b9a\u4e49\u5728 [tcp.h](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/include\/tcp.h#L15-L25)：<\/p>\n

    typedef<\/span> struct<\/span> TCPv4_HEADER<\/span> {<\/span>
    \n USHORT SourcePort;<\/span> \/\/ \u6e90\u7aef\u53e3 (2B)<\/span>
    \n USHORT DestinationPort;<\/span> \/\/ \u76ee\u7684\u7aef\u53e3 (2B)<\/span>
    \n ULONG SequenceNumber;<\/span> \/\/ \u5e8f\u53f7 (4B)<\/span>
    \n ULONG AckNumber;<\/span> \/\/ \u786e\u8ba4\u53f7 (4B)<\/span>
    \n UCHAR DataOffset;<\/span> \/\/ \u6570\u636e\u504f\u79fb (\u9ad8 4 \u4f4d, \u5355\u4f4d 32 \u4f4d\u5b57)<\/span>
    \n UCHAR Flags;<\/span> \/\/ \u6807\u5fd7\u4f4d (\u4f4e 6 \u4f4d)<\/span>
    \n USHORT Window;<\/span> \/\/ \u63a5\u6536\u7a97\u53e3 (2B)<\/span>
    \n USHORT Checksum;<\/span> \/\/ \u6821\u9a8c\u548c (2B)<\/span>
    \n USHORT Urgent;<\/span> \/\/ \u7d27\u6025\u6307\u9488 (2B)<\/span>
    \n}<\/span> TCPv4_HEADER,<\/span> *<\/span>PTCPv4_HEADER;<\/span><\/p>\n

    0 1 2 3
    \n 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
    \n+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    \n| Source Port | Destination Port |
    \n+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    \n| Sequence Number |
    \n+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    \n| Acknowledgment Number |
    \n+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    \n| Data | |C|E|U|A|P|R|S|F| |
    \n| Offset| Rsvd |W|C|R|C|S|S|Y|I| Window |
    \n| | |R|E|G|K|H|T|N|N| |
    \n+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
    \n| Checksum | Urgent Pointer |
    \n+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+<\/p>\n

    3.1 \u6807\u5fd7\u4f4d<\/h4>\n

    \/* tcpdef.h \u4e2d\u7684 TCP \u6807\u5fd7 *\/<\/span>
    \n#<\/span>define<\/span> TCP_FIN<\/span> 0x01<\/span> <\/span>\/\/ \u7ed3\u675f\u8fde\u63a5<\/span><\/span>
    \n#<\/span>define<\/span> TCP_SYN<\/span> 0x02<\/span> <\/span>\/\/ \u540c\u6b65\u5e8f\u53f7 (\u8fde\u63a5\u5efa\u7acb)<\/span><\/span>
    \n#<\/span>define<\/span> TCP_RST<\/span> 0x04<\/span> <\/span>\/\/ \u91cd\u7f6e\u8fde\u63a5<\/span><\/span>
    \n#<\/span>define<\/span> TCP_PSH<\/span> 0x08<\/span> <\/span>\/\/ \u63a8\u9001\u6570\u636e<\/span><\/span>
    \n#<\/span>define<\/span> TCP_ACK<\/span> 0x10<\/span> <\/span>\/\/ \u786e\u8ba4<\/span><\/span>
    \n#<\/span>define<\/span> TCP_URG<\/span> 0x20<\/span> <\/span>\/\/ \u7d27\u6025<\/span><\/span><\/p>\n

    3.2 \u4f2a\u5934 (TCPv4_PSEUDO_HEADER)<\/h4>\n

    \u5b9a\u4e49\u5728 [tcp.h](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/include\/tcp.h#L38-L44)：<\/p>\n

    typedef<\/span> struct<\/span> TCPv4_PSEUDO_HEADER<\/span> {<\/span>
    \n ULONG SourceAddress;<\/span> \/\/ \u6e90 IP<\/span>
    \n ULONG DestinationAddress;<\/span> \/\/ \u76ee\u7684 IP<\/span>
    \n UCHAR Zero;<\/span> \/\/ \u4fdd\u7559<\/span>
    \n UCHAR Protocol;<\/span> \/\/ 6 (TCP)<\/span>
    \n USHORT TCPLength;<\/span> \/\/ TCP \u6bb5\u957f\u5ea6<\/span>
    \n}<\/span> TCPv4_PSEUDO_HEADER,<\/span> *<\/span>PTCPv4_PSEUDO_HEADER;<\/span><\/p>\n

    3.3 TCP \u9009\u9879<\/h4>\n

    #<\/span>define<\/span> TCPOPT_END_OF_LIST<\/span> 0x0<\/span> <\/span>\/\/ \u9009\u9879\u7ed3\u675f<\/span><\/span>
    \n#<\/span>define<\/span> TCPOPT_NO_OPERATION<\/span> 0x1<\/span> <\/span>\/\/ \u65e0\u64cd\u4f5c<\/span><\/span>
    \n#<\/span>define<\/span> TCPOPT_MAX_SEG_SIZE<\/span> 0x2<\/span> <\/span>\/\/ \u6700\u5927\u6bb5\u5927\u5c0f (MSS)<\/span><\/span>
    \n#<\/span>define<\/span> TCPOPTLEN_MAX_SEG_SIZE<\/span> 0x4<\/span><\/span><\/span><\/p>\n

    \n

    4. TCP \u72b6\u6001\u673a<\/h3>\n

    TCP \u5171\u6709 11 \u79cd\u72b6\u6001（lwIP tcp_state_str）：<\/p>\n

    +———+
    \n | CLOSED |
    \n +—-+—-+
    \n |
    \n \u4e3b\u52a8\u6253\u5f00\/\u88ab\u52a8\u6253\u5f00
    \n |
    \n +—-v—-+
    \n | LISTEN |
    \n +—-+—-+
    \n | \u6536\u5230 SYN
    \n +—-v—-+
    \n | SYN_RCVD |
    \n +—-+—-+
    \n | \u53d1\u9001 SYN+ACK
    \n |
    \n \u4e3b\u52a8\u6253\u5f00 | \u540c\u65f6\u6253\u5f00
    \n +—-v—-+ +—-v—-+
    \n | SYN_SENT+——–> SYN_RCVD |
    \n +—-+—-+ +—-+—-+
    \n | |
    \n | \u6536\u5230 SYN+ACK | \u6536\u5230 ACK
    \n +——–+——–+
    \n |
    \n +——v——+
    \n | ESTABLISHED |
    \n +——+——+
    \n |
    \n +————+————+
    \n | \u4e3b\u52a8\u5173\u95ed | \u88ab\u52a8\u5173\u95ed |
    \n \u25bc \u25bc
    \n+———+ +———–+
    \n|FIN_WAIT_1| | CLOSE_WAIT|
    \n+—-+—-+ +—–+—–+
    \n | | \u5173\u95ed
    \n+—-v—-+ +—-v—-+
    \n|FIN_WAIT_2| | LAST_ACK|
    \n+—-+—-+ +—-+—-+
    \n | |
    \n+—-v—-+ |
    \n|TIME_WAIT| |
    \n+—-+—-+ |
    \n | |
    \n+—-v—-+ |
    \n| CLOSED |<——–+
    \n+———+<\/p>\n

    4.1 \u5173\u952e\u72b6\u6001<\/h4>\n\n\u72b6\u6001\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n
    LISTEN<\/td>\n\u76d1\u542c，\u7b49\u5f85 SYN<\/td>\n<\/tr>\n
    SYN_SENT<\/td>\n\u5df2\u53d1\u9001 SYN，\u7b49\u5f85 SYN+ACK<\/td>\n<\/tr>\n
    SYN_RCVD<\/td>\n\u5df2\u6536\u5230 SYN，\u5df2\u53d1\u9001 SYN+ACK<\/td>\n<\/tr>\n
    ESTABLISHED<\/td>\n\u8fde\u63a5\u5efa\u7acb，\u6570\u636e\u4f20\u8f93<\/td>\n<\/tr>\n
    FIN_WAIT_1\/2<\/td>\n\u4e3b\u52a8\u5173\u95ed\u7b49\u5f85<\/td>\n<\/tr>\n
    CLOSE_WAIT<\/td>\n\u88ab\u52a8\u5173\u95ed\u7b49\u5f85\u5e94\u7528\u5173\u95ed<\/td>\n<\/tr>\n
    TIME_WAIT<\/td>\n2MSL \u7b49\u5f85 (60 \u79d2)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    5. \u8fde\u63a5\u7aef\u70b9\u7ed3\u6784 (CONNECTION_ENDPOINT)<\/h3>\n

    CONNECTION_ENDPOINT \u662f TCP \u5c42\u7684\u6838\u5fc3\u5bf9\u8c61，\u5b9a\u4e49\u5728 [titypes.h](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/include\/titypes.h)\u3002<\/p>\n

    5.1 \u7ed3\u6784\u6982\u89c8<\/h4>\n

    CONNECTION_ENDPOINT
    \n\u2502
    \n\u251c\u2500\u2500 \u5bf9\u8c61\u7ba1\u7406
    \n\u2502 \u251c\u2500\u2500 LONG RefCount \/\/ \u5f15\u7528\u8ba1\u6570
    \n\u2502 \u251c\u2500\u2500 OBJECT_FREE_ROUTINE Free \/\/ \u91ca\u653e\u51fd\u6570 (ConnectionFree)
    \n\u2502 \u2514\u2500\u2500 ERESOURCE Resource \/\/ \u5bf9\u8c61\u9501
    \n\u2502
    \n\u251c\u2500\u2500 \u5730\u5740\u7ed1\u5b9a
    \n\u2502 \u251c\u2500\u2500 PADDRESS_FILE AddressFile \/\/ \u5173\u8054\u7684\u5730\u5740\u6587\u4ef6
    \n\u2502 \u251c\u2500\u2500 PVOID SocketContext \/\/ lwIP tcp_pcb \u6307\u9488
    \n\u2502 \u2514\u2500\u2500 PCONNECTION_ENDPOINT Next \/\/ \u5730\u5740\u6587\u4ef6\u7684\u8fde\u63a5\u94fe\u8868
    \n\u2502
    \n\u251c\u2500\u2500 \u8bf7\u6c42\u961f\u5217 (TDI_BUCKET \u94fe\u8868)
    \n\u2502 \u251c\u2500\u2500 LIST_ENTRY ConnectRequest \/\/ \u8fde\u63a5\u8bf7\u6c42
    \n\u2502 \u251c\u2500\u2500 LIST_ENTRY ListenRequest \/\/ \u76d1\u542c\u8bf7\u6c42
    \n\u2502 \u251c\u2500\u2500 LIST_ENTRY AcceptRequest \/\/ \u63a5\u53d7\u8bf7\u6c42
    \n\u2502 \u251c\u2500\u2500 LIST_ENTRY ReceiveRequest \/\/ \u63a5\u6536\u8bf7\u6c42
    \n\u2502 \u251c\u2500\u2500 LIST_ENTRY SendRequest \/\/ \u53d1\u9001\u8bf7\u6c42
    \n\u2502 \u2514\u2500\u2500 LIST_ENTRY ShutdownRequest \/\/ \u65ad\u5f00\u8bf7\u6c42
    \n\u2502
    \n\u251c\u2500\u2500 \u6570\u636e\u961f\u5217
    \n\u2502 \u251c\u2500\u2500 LIST_ENTRY PacketQueue \/\/ \u6536\u5230\u7684 pbuf \u961f\u5217 (lwIP)
    \n\u2502 \u251c\u2500\u2500 PLIST_ENTRY SendDataQueue \/\/ \u5f85\u53d1\u9001\u6570\u636e
    \n\u2502 \u2514\u2500\u2500 PLIST_ENTRY FastSendDataQueue
    \n\u2502
    \n\u2514\u2500\u2500 \u72b6\u6001
    \n \u251c\u2500\u2500 KEVENT DisconnectEvent
    \n \u251c\u2500\u2500 KTIMER DisconnectTimer
    \n \u2514\u2500\u2500 KSPIN_LOCK DisconnectLock<\/p>\n

    5.2 TDI_BUCKET \u2014 \u8bf7\u6c42\u6876<\/h4>\n

    TDI_BUCKET \u5c01\u88c5\u4e86\u4e00\u4e2a\u6302\u8d77\u7684 TDI \u8bf7\u6c42：<\/p>\n

    typedef<\/span> struct<\/span> _TDI_BUCKET<\/span> {<\/span>
    \n LIST_ENTRY Entry;<\/span> \/\/ \u961f\u5217\u94fe\u63a5<\/span>
    \n TDI_REQUEST Request;<\/span> \/\/ TDI \u8bf7\u6c42 (\u53e5\u67c4+\u5b8c\u6210\u56de\u8c03+\u4e0a\u4e0b\u6587)<\/span>
    \n PCONNECTION_ENDPOINT AssociatedEndpoint;<\/span> \/\/ \u5173\u8054\u7684\u8fde\u63a5\u7aef\u70b9<\/span>
    \n NTSTATUS Status;<\/span> \/\/ \u5b8c\u6210\u72b6\u6001<\/span>
    \n ULONG_PTR Information;<\/span> \/\/ \u4f20\u8f93\u7684\u5b57\u8282\u6570\/\u4fe1\u606f<\/span>
    \n}<\/span> TDI_BUCKET,<\/span> *<\/span>PTDI_BUCKET;<\/span><\/p>\n

    \u4f7f\u7528 TdiBucketLookasideList \u540e\u5907\u5217\u8868\u5206\u914d：<\/p>\n

    ExInitializeNPagedLookasideList<\/span>(<\/span>&<\/span>TdiBucketLookasideList,<\/span>
    \n NULL<\/span>,<\/span> NULL<\/span>,<\/span> 0<\/span>,<\/span>
    \n sizeof<\/span>(<\/span>TDI_BUCKET)<\/span>,<\/span> TDI_BUCKET_TAG,<\/span> 0<\/span>)<\/span>;<\/span><\/p>\n

    5.3 \u6536\u53d1\u7a97\u53e3 (AFD \u4e2d\u5b9a\u4e49)<\/h4>\n

    AFD \u5c42\u7ef4\u62a4 FCB->Send\/Recv \u7a97\u53e3，TCP \u5c42\u901a\u8fc7 TDI \u63a5\u53e3\u4e0e\u4e4b\u4ea4\u4e92\u3002<\/p>\n

    \n

    6. TDI_BUCKET \u4e0e IRP \u961f\u5217\u6a21\u578b<\/h3>\n

    6.1 \u8bf7\u6c42\u6302\u8d77\u6a21\u578b<\/h4>\n

    \u7528\u6237\u6001 IRP (TDI_SEND)
    \n \u2502
    \n \u25bc
    \nTCP \u5c42:
    \n \u251c\u2500 \u5206\u914d TDI_BUCKET
    \n \u251c\u2500 \u4fdd\u5b58\u5b8c\u6210\u56de\u8c03 (Complete) \u548c\u4e0a\u4e0b\u6587 (Context)
    \n \u251c\u2500 InsertTailList(&Connection->SendRequest, &Bucket->Entry)
    \n \u2514\u2500 \u8fd4\u56de STATUS_PENDING
    \n \u2502
    \n \u25bc (lwIP \u4e8b\u4ef6\u89e6\u53d1\u65f6)
    \n\u4e8b\u4ef6\u5904\u7406\u5668:
    \n \u251c\u2500 RemoveHeadList(&Connection->SendRequest)
    \n \u251c\u2500 \u6267\u884c\u64cd\u4f5c (LibTCPSend)
    \n \u251c\u2500 Bucket->Status = \u7ed3\u679c
    \n \u251c\u2500 Bucket->Information = \u5b57\u8282\u6570
    \n \u2514\u2500 CompleteBucket \u2192 BucketCompletionWorker
    \n \u2514\u2500 \u8c03\u7528 TDI \u5b8c\u6210\u56de\u8c03 \u2192 \u5b8c\u6210\u7528\u6237 IRP<\/p>\n

    6.2 CompleteBucket \u2014 \u5b8c\u6210\u8bf7\u6c42<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L37-L50)：<\/p>\n

    CompleteBucket(Connection, Bucket, Synchronous)
    \n \u251c\u2500 ReferenceObject(Connection)
    \n \u251c\u2500 Bucket->AssociatedEndpoint = Connection
    \n \u251c\u2500 Synchronous \u2192 BucketCompletionWorker \u76f4\u63a5\u6267\u884c
    \n \u2514\u2500 \u5f02\u6b65 \u2192 ChewCreate(BucketCompletionWorker, Bucket) \u6392\u961f<\/p>\n

    6.3 BucketCompletionWorker \u2014 \u5b8c\u6210\u5de5\u4f5c\u9879<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L21-L35)：<\/p>\n

    BucketCompletionWorker(Context)
    \n \u251c\u2500 Bucket = Context
    \n \u251c\u2500 Complete = Bucket->Request.RequestNotifyObject
    \n \u251c\u2500 Complete(Bucket->Request.RequestContext, Bucket->Status, Bucket->Information)
    \n \u2502 \u2514\u2500 \u901a\u5e38\u4e3a DispDataRequestComplete \u2192 IoCompleteRequest
    \n \u251c\u2500 DereferenceObject(Bucket->AssociatedEndpoint)
    \n \u2514\u2500 ExFreeToNPagedLookasideList(&TdiBucketLookasideList, Bucket)<\/p>\n

    6.4 Flush*Queue \u7cfb\u5217<\/h4>\n\n\u51fd\u6570\u529f\u80fd<\/tr>\n\n\n\n\n\n\n\n
    FlushReceiveQueue<\/td>\n\u4ee5\u72b6\u6001\u5b8c\u6210\u6240\u6709\u6302\u8d77\u63a5\u6536<\/td>\n<\/tr>\n
    FlushSendQueue<\/td>\n\u5b8c\u6210\u6240\u6709\u6302\u8d77\u53d1\u9001<\/td>\n<\/tr>\n
    FlushShutdownQueue<\/td>\n\u5b8c\u6210\u6240\u6709\u6302\u8d77\u65ad\u5f00<\/td>\n<\/tr>\n
    FlushConnectQueue<\/td>\n\u5b8c\u6210\u6240\u6709\u6302\u8d77\u8fde\u63a5<\/td>\n<\/tr>\n
    FlushListenQueue<\/td>\n\u5b8c\u6210\u6240\u6709\u6302\u8d77\u76d1\u542c<\/td>\n<\/tr>\n
    FlushAllQueues<\/td>\n\u5168\u90e8\u5b8c\u6210 (\u8fde\u63a5\u7ec8\u6b62\u65f6)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    7. \u8fde\u63a5\u7ba1\u7406<\/h3>\n

    7.1 TCPSocket \u2014 \u521b\u5efa socket<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L153)：<\/p>\n

    TCPSocket(Connection, Family, Type, Proto)
    \n \u2502
    \n \u251c\u2500 LockObject(Connection)
    \n \u251c\u2500 \u8c03\u7528 LibTCPSocket(Connection) \u2192 \u521b\u5efa lwIP tcp_pcb
    \n \u251c\u2500 \u8bbe\u7f6e\u56de\u8c03:
    \n \u2502 tcp_arg(pcb, Connection)
    \n \u2502 tcp_err(pcb, InternalErrorEventHandler)
    \n \u2502 (\u8fde\u63a5\u5efa\u7acb\u540e\u8bbe\u7f6e tcp_recv\/tcp_sent\/tcp_accept)
    \n \u251c\u2500 Connection->SocketContext = pcb
    \n \u2514\u2500 \u8fd4\u56de<\/p>\n

    7.2 TCPConnect \u2014 \u53d1\u8d77\u8fde\u63a5<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L301-L424)：<\/p>\n

    TCPConnect(Connection, ConnInfo, ReturnInfo, Complete, Context)
    \n \u2502
    \n \u251c\u2500 LockObject(Connection)
    \n \u251c\u2500 \u89e3\u6790\u8fdc\u7aef\u5730\u5740 (TA_IP_ADDRESS \u2192 ip_addr_t)
    \n \u2502
    \n \u251c\u2500 \u5206\u914d\u672c\u5730\u7aef\u53e3:
    \n \u2502 LocalAddress = \u5730\u5740\u6587\u4ef6\u5730\u5740
    \n \u2502 \u7aef\u53e3\u672a\u6307\u5b9a \u2192 TCPAllocatePort(\u52a8\u6001)
    \n \u2502
    \n \u251c\u2500 \u521b\u5efa TDI_BUCKET \u6302\u5165 ConnectRequest
    \n \u2502
    \n \u251c\u2500 LibTCPConnect(Connection, &ipaddr, port)
    \n \u2502 \u2514\u2500 lwIP: tcp_connect(pcb, ipaddr, port, InternalConnectEventHandler)
    \n \u2502
    \n \u251c\u2500 \u8fd4\u56de STATUS_PENDING
    \n \u2502
    \n \u2514\u2500 \u8fde\u63a5\u5b8c\u6210 \u2192 TCPConnectEventHandler<\/p>\n

    7.3 LibTCPConnect \u2014 lwIP \u6865\u63a5<\/h4>\n

    \u5728 [tcp.c \u7c98\u5408\u5c42](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L621-L635)：<\/p>\n

    LibTCPConnect(Connection, ipaddr, port)
    \n \u2502
    \n \u251c\u2500 \u5206\u914d lwip_callback_msg
    \n \u251c\u2500 \u586b\u5145 Input.Connect { Connection, IpAddress, Port }
    \n \u251c\u2500 tcpip_callback_with_block(LibTCPConnectCallback, msg, 1)
    \n \u2502 \u2514\u2500 \u5728 tcpip \u7ebf\u7a0b\u4e2d\u6267\u884c:
    \n \u2502 tcp_arg(pcb, Connection)
    \n \u2502 tcp_recv(pcb, InternalRecvEventHandler)
    \n \u2502 tcp_sent(pcb, InternalSendEventHandler)
    \n \u2502 tcp_connect(pcb, ipaddr, port, InternalConnectEventHandler)
    \n \u2502 msg->Output.Connect.Error = …
    \n \u251c\u2500 KeWaitForSingleObject(&msg->Event) \/\/ \u7b49\u5f85 tcpip \u7ebf\u7a0b\u5b8c\u6210
    \n \u2514\u2500 \u8fd4\u56de\u9519\u8bef\u7801<\/p>\n

    7.4 TCPConnectEventHandler \u2014 \u8fde\u63a5\u5b8c\u6210<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L419-L441)：<\/p>\n

    TCPConnectEventHandler(arg, err)
    \n \u251c\u2500 Connection = arg
    \n \u251c\u2500 \u904d\u5386 ConnectRequest \u961f\u5217:
    \n \u2502 Bucket->Status = TCPTranslateError(err)
    \n \u2502 CompleteBucket(Connection, Bucket, FALSE)
    \n \u2514\u2500 \u5b8c\u6210\u6240\u6709\u6302\u8d77\u7684\u8fde\u63a5\u8bf7\u6c42<\/p>\n

    \n

    8. \u76d1\u542c\u4e0e\u63a5\u53d7<\/h3>\n

    8.1 TCPListen \u2014 \u76d1\u542c<\/h4>\n

    \u5728 [accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L47-L105)：<\/p>\n

    TCPListen(Connection, Backlog)
    \n \u2502
    \n \u251c\u2500 \u89e3\u6790\u672c\u5730\u7ed1\u5b9a\u5730\u5740:
    \n \u2502 AddressToBind = AddressFile->Address
    \n \u2502 Port = AddressFile->Port
    \n \u2502
    \n \u251c\u2500 LibTCPBind(Connection, &AddressToBind, Port)
    \n \u2502 \u2514\u2500 tcp_bind(pcb, ipaddr, port)
    \n \u2502
    \n \u251c\u2500 \u7aef\u53e3\u672a\u6307\u5b9a (0):
    \n \u2502 \u251c\u2500 TCPGetSockAddress \u83b7\u53d6\u5b9e\u9645\u7aef\u53e3
    \n \u2502 \u251c\u2500 TCPAllocatePort \u5206\u914d\u7aef\u53e3
    \n \u2502 \u2514\u2500 AddressFile->Port = AllocatedPort
    \n \u2502
    \n \u251c\u2500 Connection->SocketContext = LibTCPListen(Connection, Backlog)
    \n \u2502 \u2514\u2500 tcp_listen(pcb) + tcp_accept(pcb, InternalAcceptEventHandler)
    \n \u2502
    \n \u2514\u2500 \u8fd4\u56de<\/p>\n

    8.2 TCPAccept \u2014 \u63a5\u53d7\u8fde\u63a5<\/h4>\n

    \u5728 [accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L139)：<\/p>\n

    TCPAccept(Request, Listener, Connection, Complete, Context)
    \n \u2502
    \n \u251c\u2500 \u5206\u914d TDI_BUCKET
    \n \u251c\u2500 Bucket->AssociatedEndpoint = Connection (\u63a5\u53d7\u65b0\u8fde\u63a5\u7684 socket)
    \n \u251c\u2500 \u6302\u5165 Listener->ListenRequest
    \n \u2502
    \n \u2514\u2500 \u8fd4\u56de STATUS_PENDING
    \n \u2514\u2500 \u65b0\u8fde\u63a5\u5230\u8fbe \u2192 TCPAcceptEventHandler<\/p>\n

    8.3 TCPAcceptEventHandler \u2014 \u63a5\u53d7\u5b8c\u6210<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L230-L291)：<\/p>\n

    TCPAcceptEventHandler(arg, newpcb)
    \n \u2502
    \n \u251c\u2500 Connection = arg (Listener)
    \n \u251c\u2500 \u904d\u5386 ListenRequest \u961f\u5217:
    \n \u2502 \u251c\u2500 TCPCheckPeerForAccept(newpcb, Request):
    \n \u2502 \u2502 \u2514\u2500 LibTCPGetPeerName \u2192 \u586b\u5145\u8fdc\u7aef\u5730\u5740
    \n \u2502 \u2502
    \n \u2502 \u251c\u2500 \u6210\u529f:
    \n \u2502 \u2502 \u251c\u2500 \u91ca\u653e\u539f socket \u4e0a\u4e0b\u6587 (LibTCPClose \u65e7\u7684 pcb)
    \n \u2502 \u2502 \u251c\u2500 Bucket->AssociatedEndpoint->SocketContext = newpcb
    \n \u2502 \u2502 \u2514\u2500 LibTCPAccept(newpcb, listen_pcb, AssociatedEndpoint)
    \n \u2502 \u2502 \u2514\u2500 tcp_recv\/tcp_sent\/tcp_err\/tcp_poll \u8bbe\u7f6e
    \n \u2502 \u2502 \u2514\u2500 \u901a\u77e5 AFD \u5b8c\u6210 accept
    \n \u2502 \u2502
    \n \u2502 \u2514\u2500 CompleteBucket(Connection, Bucket, FALSE)
    \n \u2502 \u2514\u2500 \u5b8c\u6210\u7528\u6237 IRP
    \n \u2514\u2500 \u53ea\u63a5\u53d7\u4e00\u4e2a\u8fde\u63a5 (break)<\/p>\n

    8.4 TCPAbortListenForSocket \u2014 \u4e2d\u6b62\u76d1\u542c<\/h4>\n

    \u5728 [accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L107-L137)：<\/p>\n

    TCPAbortListenForSocket(Listener, Connection)
    \n \u251c\u2500 \u904d\u5386 Listener->ListenRequest
    \n \u251c\u2500 \u627e\u5230\u5173\u8054 Connection \u7684 Bucket:
    \n \u2502 \u251c\u2500 \u79fb\u9664 + \u91ca\u653e
    \n \u2502 \u2514\u2500 \u8fd4\u56de TRUE
    \n \u2514\u2500 \u8fd4\u56de FALSE<\/p>\n

    \n

    9. \u6570\u636e\u53d1\u9001\u8def\u5f84<\/h3>\n

    9.1 TCPSendData \u2014 \u53d1\u9001\u5165\u53e3<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L579-L630)：<\/p>\n

    TCPSendData(Connection, Buffer, DataSize, DataUsed, Flags, Complete, Context)
    \n \u2502
    \n \u251c\u2500 \u5206\u914d TDI_BUCKET
    \n \u251c\u2500 Bucket->Request.RequestNotifyObject = Complete
    \n \u251c\u2500 Bucket->Request.RequestContext = Context
    \n \u2502
    \n \u251c\u2500 \u6302\u5165 Connection->SendRequest
    \n \u2502
    \n \u251c\u2500 \u5c1d\u8bd5\u7acb\u5373\u53d1\u9001:
    \n \u2502 LibTCPSend(Connection, Buffer, DataSize, &sent, TRUE)
    \n \u2502 \u251c\u2500 \u6210\u529f \u2192 \u5b8c\u6210 Bucket (\u8fd4\u56de\u5df2\u53d1\u9001\u5b57\u8282\u6570)
    \n \u2502 \u2514\u2500 \u5931\u8d25 (STATUS_PENDING) \u2192 \u4fdd\u6301\u6302\u8d77
    \n \u2502
    \n \u2514\u2500 \u8fd4\u56de STATUS_PENDING \/ \u7acb\u5373\u5b8c\u6210<\/p>\n

    9.2 LibTCPSend \u2014 lwIP \u53d1\u9001<\/h4>\n

    \u5728 [tcp.c \u7c98\u5408\u5c42](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L556-L590)：<\/p>\n

    LibTCPSend(Connection, dataptr, len, sent, safe)
    \n \u2502
    \n \u251c\u2500 \u5206\u914d lwip_callback_msg
    \n \u251c\u2500 tcpip_callback_with_block(LibTCPSendCallback, msg, 1)
    \n \u2502 \u2514\u2500 tcpip \u7ebf\u7a0b\u4e2d:
    \n \u2502 Error = tcp_write(pcb, dataptr, len, TCP_WRITE_FLAG_COPY)
    \n \u2502 \u6210\u529f \u2192 tcp_output(pcb)
    \n \u2502 msg->Output.Send.Error = Error
    \n \u2502 msg->Output.Send.Information = len
    \n \u251c\u2500 \u7b49\u5f85\u4e8b\u4ef6
    \n \u251c\u2500 *sent = Information
    \n \u2514\u2500 \u8fd4\u56de\u9519\u8bef\u7801<\/p>\n

    9.3 TCPSendEventHandler \u2014 \u53d1\u9001\u4e8b\u4ef6<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L293-L377)，\u7531 lwIP tcp_sent \u56de\u8c03\u89e6\u53d1（\u53d1\u9001\u7a97\u53e3\u6709\u7a7a\u95f4\u65f6）：<\/p>\n

    TCPSendEventHandler(arg, space)
    \n \u2502
    \n \u251c\u2500 Connection = arg
    \n \u251c\u2500 \u904d\u5386 SendRequest \u961f\u5217:
    \n \u2502 \u251c\u2500 NdisQueryBuffer(Irp->MdlAddress) \u2192 \u7528\u6237\u53d1\u9001\u7f13\u51b2
    \n \u2502 \u251c\u2500 LibTCPSend(Connection, SendBuffer, SendLen, &BytesSent, TRUE)
    \n \u2502 \u251c\u2500 STATUS_PENDING \u2192 \u653e\u56de\u961f\u5217\u5934\u90e8, \u505c\u6b62
    \n \u2502 \u251c\u2500 \u6210\u529f \u2192 Bucket->Information = BytesSent
    \n \u2502 \u2514\u2500 CompleteBucket (\u5b8c\u6210\u7528\u6237 IRP)
    \n \u2502
    \n \u251c\u2500 \u5168\u90e8\u5b8c\u6210\u540e:
    \n \u2502 \u251c\u2500 FlushShutdownQueue(STATUS_SUCCESS) \/\/ \u5b8c\u6210\u5f85\u5904\u7406\u7684\u65ad\u5f00
    \n \u2502 \u2514\u2500 KeCancelTimer(DisconnectTimer)
    \n \u2502
    \n \u2514\u2500 DereferenceObject<\/p>\n

    \n

    10. \u6570\u636e\u63a5\u6536\u8def\u5f84<\/h3>\n

    10.1 TCPReceive \u2014 IP \u5c42\u5165\u53e3<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L192-L206)，\u4f5c\u4e3a IPRegisterProtocol(IPPROTO_TCP, TCPReceive) \u6ce8\u518c：<\/p>\n

    TCPReceive(Interface, IPPacket)
    \n \u2502
    \n \u2514\u2500 LibIPInsertPacket(Interface->TCPContext, IPPacket->Header, TotalSize)
    \n \u2514\u2500 \u5c06 IP \u6570\u636e\u5305\u9001\u5165 lwIP \u7684 netif \u8f93\u5165 (tcpip \u7ebf\u7a0b)<\/p>\n

    10.2 LibIPInsertPacket \u2014 \u6ce8\u5165 lwIP<\/h4>\n

    \u5728 [ip.c \u7c98\u5408\u5c42](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/ip.c)：<\/p>\n

    LibIPInsertPacket(ifarg, data, size)
    \n \u2502
    \n \u251c\u2500 \u521b\u5efa pbuf (PBUF_RAW, \u5f15\u7528\u6570\u636e)
    \n \u251c\u2500 \u6392\u961f\u5230 tcpip \u7ebf\u7a0b\u8f93\u5165\u961f\u5217
    \n \u2502 \u2514\u2500 tcpip_thread \u5904\u7406 \u2192 netif->input \u2192 tcp_input
    \n \u2502 \u2514\u2500 lwIP \u5904\u7406 TCP \u6bb5 (\u6821\u9a8c\/\u5e8f\u53f7\/\u72b6\u6001\u673a)
    \n \u2502 \u2514\u2500 \u6570\u636e\u5230\u8fbe \u2192 \u8c03\u7528 InternalRecvEventHandler
    \n \u2514\u2500 \u5b8c\u6210<\/p>\n

    10.3 InternalRecvEventHandler \u2192 TCPRecvEventHandler<\/h4>\n

    lwIP \u6570\u636e\u5230\u8fbe\u65f6\u8c03\u7528\u6ce8\u518c\u7684 tcp_recv \u56de\u8c03（\u7c98\u5408\u5c42\u4e2d）：<\/p>\n

    InternalRecvEventHandler(arg, pcb, p, err)
    \n \u2502
    \n \u251c\u2500 Connection = arg
    \n \u251c\u2500 \u5c06 pbuf \u6302\u5165 Connection->PacketQueue:
    \n \u2502 LibTCPEnqueuePacket(Connection, p)
    \n \u2502 tcp_recved(pcb, p->tot_len) \/\/ \u901a\u77e5 lwIP \u6570\u636e\u5df2\u53d6\u8d70
    \n \u2502
    \n \u2514\u2500 \u8c03\u7528\u5916\u90e8\u5904\u7406\u5668:
    \n TCPRecvEventHandler(Connection) \/\/ event.c<\/p>\n

    10.4 TCPRecvEventHandler \u2014 \u63a5\u6536\u4e8b\u4ef6<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L379-L417)：<\/p>\n

    TCPRecvEventHandler(arg)
    \n \u2502
    \n \u251c\u2500 Connection = arg
    \n \u251c\u2500 \u904d\u5386 ReceiveRequest \u961f\u5217:
    \n \u2502 \u251c\u2500 NdisQueryBuffer(Irp->MdlAddress) \u2192 \u7528\u6237\u63a5\u6536\u7f13\u51b2
    \n \u2502 \u251c\u2500 LibTCPGetDataFromConnectionQueue(Connection, RecvBuffer,
    \n \u2502 \u2502 RecvLen, &Received)
    \n \u2502 \u2502 \u2514\u2500 \u4ece PacketQueue \u89e3\u5305 pbuf, \u590d\u5236\u6570\u636e\u5230\u7528\u6237\u7f13\u51b2
    \n \u2502 \u251c\u2500 STATUS_PENDING \u2192 \u653e\u56de\u961f\u5217\u5934\u90e8, \u505c\u6b62 (\u65e0\u6570\u636e)
    \n \u2502 \u251c\u2500 \u6210\u529f \u2192 Bucket->Information = Received
    \n \u2502 \u2514\u2500 CompleteBucket (\u5b8c\u6210\u7528\u6237 IRP)
    \n \u2502
    \n \u2514\u2500 \u5b8c\u6210<\/p>\n

    10.5 TCPReceiveData \u2014 TDI \u63a5\u6536\u5165\u53e3<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L528-L577)：<\/p>\n

    TCPReceiveData(Connection, Buffer, ReceiveLength, BytesReceived,
    \n ReceiveFlags, Complete, Context)
    \n \u2502
    \n \u251c\u2500 \u5206\u914d TDI_BUCKET \u6302\u5165 ReceiveRequest
    \n \u2502
    \n \u251c\u2500 \u5c1d\u8bd5\u7acb\u5373\u53d6\u6570\u636e:
    \n \u2502 LibTCPGetDataFromConnectionQueue \u2192 \u6709\u6570\u636e\u5219\u5b8c\u6210
    \n \u2502 STATUS_PENDING \u2192 \u4fdd\u6301\u6302\u8d77\u7b49\u5f85 TCPRecvEventHandler
    \n \u2502
    \n \u2514\u2500 \u8fd4\u56de<\/p>\n

    \n

    11. \u4e8b\u4ef6\u5904\u7406\u5668<\/h3>\n

    11.1 \u4e8b\u4ef6\u5904\u7406\u5668\u603b\u89c8<\/h4>\n

    lwIP \u901a\u8fc7\u56de\u8c03\u9a71\u52a8 TCP \u5c42，\u7c98\u5408\u5c42\u5c06\u56de\u8c03\u8f6c\u53d1\u7ed9 event.c \u7684\u5904\u7406\u5668：<\/p>\n

    lwIP \u56de\u8c03 \u7c98\u5408\u5c42 \u4e8b\u4ef6\u5904\u7406\u5668 (event.c)
    \n\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500 \u2500\u2500\u2500\u2500\u2500\u2500 \u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500
    \ntcp_connect \u5b8c\u6210 \u2192 InternalConnectEventHandler \u2192 TCPConnectEventHandler
    \ntcp_accept \u65b0\u8fde\u63a5 \u2192 InternalAcceptEventHandler \u2192 TCPAcceptEventHandler
    \ntcp_recv \u6570\u636e\u5230\u8fbe \u2192 InternalRecvEventHandler \u2192 TCPRecvEventHandler
    \ntcp_sent \u53ef\u53d1\u9001 \u2192 InternalSendEventHandler \u2192 TCPSendEventHandler
    \ntcp_err \u9519\u8bef\/\u5173\u95ed \u2192 InternalErrorEventHandler \u2192 TCPFinEventHandler
    \ntcp_poll \u5468\u671f\u8f6e\u8be2 \u2192 InternalPollEventHandler \u2192 (keepalive\/\u8d85\u65f6)<\/p>\n

    11.2 TCPFinEventHandler \u2014 \u8fde\u63a5\u7ec8\u6b62<\/h4>\n

    \u5728 [event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L181-L228)：<\/p>\n

    TCPFinEventHandler(arg, err)
    \n \u2502
    \n \u251c\u2500 Status = TCPTranslateError(err)
    \n \u251c\u2500 FlushAllQueues(Connection, Status) \/\/ \u5b8c\u6210\u6240\u6709\u6302\u8d77\u8bf7\u6c42
    \n \u2502
    \n \u251c\u2500 \u4ece\u5730\u5740\u6587\u4ef6\u8fde\u63a5\u94fe\u8868\u79fb\u9664:
    \n \u2502 \u251c\u2500 \u662f\u9996\u8fde\u63a5 \u2192 AddressFile->Connection = Next
    \n \u2502 \u251c\u2500 \u662f\u76d1\u542c\u5668 \u2192 AddressFile->Listener = NULL
    \n \u2502 \u2514\u2500 \u904d\u5386\u67e5\u627e \u2192 \u4ece\u94fe\u4e2d\u79fb\u9664
    \n \u2502
    \n \u251c\u2500 DereferenceObject(AddressFile)
    \n \u251c\u2500 Connection->AddressFile = NULL
    \n \u2514\u2500 \u5b8c\u6210<\/p>\n

    11.3 TCPTranslateError \u2014 \u9519\u8bef\u7801\u8f6c\u6362<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L267-L299)，\u5c06 lwIP err_t \u8f6c\u6362\u4e3a NTSTATUS：<\/p>\n

    err_t \u2192 NTSTATUS
    \nERR_OK (0) \u2192 STATUS_SUCCESS
    \nERR_MEM (-1) \u2192 STATUS_INSUFFICIENT_RESOURCES
    \nERR_BUF (-2) \u2192 STATUS_BUFFER_TOO_SMALL
    \nERR_TIMEOUT(-3)\u2192 STATUS_TIMEOUT
    \nERR_RTE (-4) \u2192 STATUS_NETWORK_UNREACHABLE
    \nERR_INPROGRESS\u2192 STATUS_PENDING
    \nERR_VAL (-6) \u2192 STATUS_INVALID_PARAMETER
    \nERR_WOULDBLOCK\u2192 STATUS_CANT_WAIT
    \nERR_USE (-8) \u2192 STATUS_ADDRESS_ALREADY_EXISTS
    \nERR_ABRT (-10) \u2192 STATUS_LOCAL_DISCONNECT
    \nERR_RST (-11) \u2192 STATUS_REMOTE_DISCONNECT
    \nERR_CLSD (-12) \u2192 STATUS_FILE_CLOSED
    \nERR_CONN (-13) \u2192 STATUS_INVALID_CONNECTION
    \nERR_IF (-15) \u2192 STATUS_UNEXPECTED_NETWORK_ERROR<\/p>\n

    \n

    12. lwIP \u7c98\u5408\u5c42\u4e0e tcpip \u7ebf\u7a0b\u6a21\u578b<\/h3>\n

    12.1 \u7ebf\u7a0b\u6a21\u578b<\/h4>\n

    lwIP \u8981\u6c42\u6240\u6709 raw API \u8c03\u7528\u5728 tcpip \u7ebf\u7a0b \u4e2d\u6267\u884c：<\/p>\n

    LibTCPXxx (\u8c03\u7528\u7ebf\u7a0b)
    \n \u2502
    \n \u2502 1. \u5206\u914d lwip_callback_msg { Event, Input, Output }
    \n \u2502 2. \u586b\u5145 Input \u53c2\u6570
    \n \u2502 3. tcpip_callback_with_block(LibTCPXxxCallback, msg, 1)
    \n \u2502 \u2502
    \n \u2502 \u25bc (\u6392\u961f\u5230 tcpip \u7ebf\u7a0b)
    \n \u2502 tcpip \u7ebf\u7a0b: LibTCPXxxCallback(msg)
    \n \u2502 \u251c\u2500 \u8c03\u7528 lwIP raw API (tcp_connect\/tcp_write\/…)
    \n \u2502 \u251c\u2500 \u586b\u5145 msg->Output
    \n \u2502 \u2514\u2500 KeSetEvent(&msg->Event)
    \n \u2502
    \n \u2502 4. KeWaitForSingleObject(&msg->Event) \/\/ \u7b49\u5f85\u5b8c\u6210
    \n \u2502 5. \u8bfb\u53d6 Output
    \n \u2502
    \n \u2514\u2500 \u8fd4\u56de\u7ed3\u679c<\/p>\n

    12.2 lwip_callback_msg<\/h4>\n

    \u5b9a\u4e49\u5728 [lwip_glue.h](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/lwip_glue.h#L24-L92)：<\/p>\n

    struct<\/span> lwip_callback_msg<\/span>
    \n{<\/span>
    \n KEVENT Event;<\/span> \/\/ \u540c\u6b65\u4e8b\u4ef6<\/span><\/p>\n

    union<\/span> {<\/span> \/\/ \u8f93\u5165\u53c2\u6570<\/span>
    \n struct<\/span> {<\/span> PVOID Arg;<\/span> }<\/span> Socket;<\/span>
    \n struct<\/span> {<\/span> struct<\/span> tcp_pcb<\/span>*<\/span> pcb;<\/span> }<\/span> FreeSocket;<\/span>
    \n struct<\/span> {<\/span> PCONNECTION_ENDPOINT Connection;<\/span> ip_addr_t<\/span> *<\/span>IpAddress;<\/span> u16_t<\/span> Port;<\/span> }<\/span> Bind;<\/span>
    \n struct<\/span> {<\/span> PCONNECTION_ENDPOINT Connection;<\/span> u8_t<\/span> Backlog;<\/span> }<\/span> Listen;<\/span>
    \n struct<\/span> {<\/span> PCONNECTION_ENDPOINT Connection;<\/span> void<\/span> *<\/span>Data;<\/span> u16_t<\/span> DataLength;<\/span> }<\/span> Send;<\/span>
    \n struct<\/span> {<\/span> PCONNECTION_ENDPOINT Connection;<\/span> ip_addr_t<\/span> *<\/span>IpAddress;<\/span> u16_t<\/span> Port;<\/span> }<\/span> Connect;<\/span>
    \n struct<\/span> {<\/span> PCONNECTION_ENDPOINT Connection;<\/span> int<\/span> shut_rx;<\/span> int<\/span> shut_tx;<\/span> }<\/span> Shutdown;<\/span>
    \n struct<\/span> {<\/span> PCONNECTION_ENDPOINT Connection;<\/span> int<\/span> Callback;<\/span> }<\/span> Close;<\/span>
    \n }<\/span> Input;<\/span><\/p>\n

    union<\/span> {<\/span> \/\/ \u8f93\u51fa\u7ed3\u679c<\/span>
    \n struct<\/span> {<\/span> struct<\/span> tcp_pcb<\/span> *<\/span>NewPcb;<\/span> }<\/span> Socket;<\/span>
    \n struct<\/span> {<\/span> err_t<\/span> Error;<\/span> }<\/span> Bind;<\/span>
    \n struct<\/span> {<\/span> struct<\/span> tcp_pcb<\/span> *<\/span>NewPcb;<\/span> }<\/span> Listen;<\/span>
    \n struct<\/span> {<\/span> err_t<\/span> Error;<\/span> u32_t<\/span> Information;<\/span> }<\/span> Send;<\/span>
    \n struct<\/span> {<\/span> err_t<\/span> Error;<\/span> }<\/span> Connect;<\/span>
    \n struct<\/span> {<\/span> err_t<\/span> Error;<\/span> }<\/span> Shutdown;<\/span>
    \n struct<\/span> {<\/span> err_t<\/span> Error;<\/span> }<\/span> Close;<\/span>
    \n }<\/span> Output;<\/span>
    \n}<\/span>;<\/span><\/p>\n

    12.3 LibTCP* \u51fd\u6570\u6e05\u5355<\/h4>\n\n\u51fd\u6570lwIP \u8c03\u7528\u529f\u80fd<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    LibTCPSocket<\/td>\ntcp_new<\/td>\n\u521b\u5efa PCB<\/td>\n<\/tr>\n
    LibTCPFreeSocket<\/td>\ntcp_close<\/td>\n\u5173\u95ed PCB<\/td>\n<\/tr>\n
    LibTCPBind<\/td>\ntcp_bind<\/td>\n\u7ed1\u5b9a\u672c\u5730\u5730\u5740\u7aef\u53e3<\/td>\n<\/tr>\n
    LibTCPListen<\/td>\ntcp_listen + tcp_accept<\/td>\n\u8fdb\u5165\u76d1\u542c<\/td>\n<\/tr>\n
    LibTCPSend<\/td>\ntcp_write + tcp_output<\/td>\n\u53d1\u9001\u6570\u636e<\/td>\n<\/tr>\n
    LibTCPConnect<\/td>\ntcp_connect<\/td>\n\u53d1\u8d77\u8fde\u63a5<\/td>\n<\/tr>\n
    LibTCPShutdown<\/td>\ntcp_shutdown<\/td>\n\u5173\u95ed\u8bfb\u5199<\/td>\n<\/tr>\n
    LibTCPClose<\/td>\ntcp_close<\/td>\n\u5173\u95ed<\/td>\n<\/tr>\n
    LibTCPGetPeerName<\/td>\n\u8bfb PCB \u5b57\u6bb5<\/td>\n\u83b7\u53d6\u8fdc\u7aef\u5730\u5740<\/td>\n<\/tr>\n
    LibTCPGetHostName<\/td>\n\u8bfb PCB \u5b57\u6bb5<\/td>\n\u83b7\u53d6\u672c\u5730\u5730\u5740<\/td>\n<\/tr>\n
    LibTCPAccept<\/td>\n\u8bbe\u7f6e\u56de\u8c03<\/td>\n\u8bbe\u7f6e\u65b0 PCB \u56de\u8c03<\/td>\n<\/tr>\n
    LibTCPSetNoDelay<\/td>\ntcp_nagle_disable<\/td>\n\u7981\u7528 Nagle<\/td>\n<\/tr>\n
    LibTCPGetSocketStatus<\/td>\n\u8bfb state<\/td>\n\u83b7\u53d6\u72b6\u6001<\/td>\n<\/tr>\n
    LibTCPEnqueuePacket<\/td>\npbuf \u7ba1\u7406<\/td>\n\u5165\u961f\u63a5\u6536\u6570\u636e<\/td>\n<\/tr>\n
    LibTCPGetDataFromConnectionQueue<\/td>\npbuf \u8bfb\u53d6<\/td>\n\u51fa\u961f\u590d\u5236\u6570\u636e<\/td>\n<\/tr>\n
    LibIPInsertPacket<\/td>\nnetif input<\/td>\n\u6ce8\u5165 IP \u5305<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    13. \u65ad\u5f00\u4e0e\u6e05\u7406<\/h3>\n

    13.1 TCPDisconnect \u2014 TDI \u65ad\u5f00<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L426-L526)：<\/p>\n

    TCPDisconnect(Connection, Flags, Timeout, ConnInfo, ReturnInfo, Complete, Context)
    \n \u2502
    \n \u251c\u2500 \u89e3\u6790 Flags:
    \n \u2502 TDI_DISCONNECT_ABORT:
    \n \u2502 \u2502 \u2514\u2500 LibTCPShutdown(Connection, 1, 1) \/\/ \u7acb\u5373\u4e2d\u6b62 (RST)
    \n \u2502 \u2502
    \n \u2502 TDI_DISCONNECT_RELEASE:
    \n \u2502 \u2502 \u2514\u2500 LibTCPShutdown(Connection, 0, 1) \/\/ \u53ea\u5173\u53d1\u9001 (FIN)
    \n \u2502 \u2502
    \n \u2502 \u5176\u4ed6 (\u6b63\u5e38):
    \n \u2502 \u2514\u2500 LibTCPShutdown(Connection, 0, 1)
    \n \u2502 \u2514\u2500 \u6302\u8d77 ShutdownRequest \u76f4\u5230\u53d1\u9001\u5b8c\u6210
    \n \u2502
    \n \u251c\u2500 \u8bbe\u7f6e DisconnectTimer (\u8d85\u65f6\u5f3a\u5236\u5b8c\u6210)
    \n \u2502
    \n \u2514\u2500 \u5b8c\u6210\u6216\u6302\u8d77<\/p>\n

    13.2 TCPClose \u2014 \u5173\u95ed<\/h4>\n

    \u5728 [tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L177-L190)：<\/p>\n

    TCPClose(Connection)
    \n \u2514\u2500 LibTCPClose(Connection, FALSE, TRUE)
    \n \u2514\u2500 tcp_close(pcb) \u2192 lwIP \u53d1\u9001 FIN\/\u91ca\u653e<\/p>\n

    13.3 \u8fde\u63a5\u8d44\u6e90\u91ca\u653e (ConnectionFree)<\/h4>\n

    ConnectionFree(Object)
    \n \u251c\u2500 Connection = Object
    \n \u251c\u2500 \u6e05\u7406 PacketQueue (\u91ca\u653e pbuf)
    \n \u251c\u2500 LibTCPFreeSocket(SocketContext) \/\/ \u5173\u95ed lwIP PCB
    \n \u2514\u2500 ExFreePool(Connection)<\/p>\n

    \n

    14. \u5de5\u4f5c\u6d41\u7a0b\u56fe<\/h3>\n

    14.1 TCP \u8fde\u63a5\u5efa\u7acb (\u4e09\u6b21\u63e1\u624b)<\/h4>\n

    \u8fdc\u7aef<\/p>\n

    lwIP tcpip\u7ebf\u7a0b<\/p>\n

    TCP\u5c42(tcpip.sys)<\/p>\n

    \u5e94\u7528\u7a0b\u5e8f<\/p>\n

    \u8fdc\u7aef<\/p>\n

    lwIP tcpip\u7ebf\u7a0b<\/p>\n

    TCP\u5c42(tcpip.sys)<\/p>\n

    \u5e94\u7528\u7a0b\u5e8f<\/p>\n

    #mermaid-svg-rexOxnyITE46znnG{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-rexOxnyITE46znnG .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-rexOxnyITE46znnG .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-rexOxnyITE46znnG .error-icon{fill:#552222;}#mermaid-svg-rexOxnyITE46znnG .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-rexOxnyITE46znnG .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-rexOxnyITE46znnG .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-rexOxnyITE46znnG .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-rexOxnyITE46znnG .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-rexOxnyITE46znnG .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-rexOxnyITE46znnG .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-rexOxnyITE46znnG .marker{fill:#333333;stroke:#333333;}#mermaid-svg-rexOxnyITE46znnG .marker.cross{stroke:#333333;}#mermaid-svg-rexOxnyITE46znnG svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-rexOxnyITE46znnG p{margin:0;}#mermaid-svg-rexOxnyITE46znnG .actor{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-rexOxnyITE46znnG text.actor>tspan{fill:black;stroke:none;}#mermaid-svg-rexOxnyITE46znnG .actor-line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-rexOxnyITE46znnG .innerArc{stroke-width:1.5;stroke-dasharray:none;}#mermaid-svg-rexOxnyITE46znnG .messageLine0{stroke-width:1.5;stroke-dasharray:none;stroke:#333;}#mermaid-svg-rexOxnyITE46znnG .messageLine1{stroke-width:1.5;stroke-dasharray:2,2;stroke:#333;}#mermaid-svg-rexOxnyITE46znnG #arrowhead path{fill:#333;stroke:#333;}#mermaid-svg-rexOxnyITE46znnG .sequenceNumber{fill:white;}#mermaid-svg-rexOxnyITE46znnG #sequencenumber{fill:#333;}#mermaid-svg-rexOxnyITE46znnG #crosshead path{fill:#333;stroke:#333;}#mermaid-svg-rexOxnyITE46znnG .messageText{fill:#333;stroke:none;}#mermaid-svg-rexOxnyITE46znnG .labelBox{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-rexOxnyITE46znnG .labelText,#mermaid-svg-rexOxnyITE46znnG .labelText>tspan{fill:black;stroke:none;}#mermaid-svg-rexOxnyITE46znnG .loopText,#mermaid-svg-rexOxnyITE46znnG .loopText>tspan{fill:black;stroke:none;}#mermaid-svg-rexOxnyITE46znnG .loopLine{stroke-width:2px;stroke-dasharray:2,2;stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);}#mermaid-svg-rexOxnyITE46znnG .note{stroke:#aaaa33;fill:#fff5ad;}#mermaid-svg-rexOxnyITE46znnG .noteText,#mermaid-svg-rexOxnyITE46znnG .noteText>tspan{fill:black;stroke:none;}#mermaid-svg-rexOxnyITE46znnG .activation0{fill:#f4f4f4;stroke:#666;}#mermaid-svg-rexOxnyITE46znnG .activation1{fill:#f4f4f4;stroke:#666;}#mermaid-svg-rexOxnyITE46znnG .activation2{fill:#f4f4f4;stroke:#666;}#mermaid-svg-rexOxnyITE46znnG .actorPopupMenu{position:absolute;}#mermaid-svg-rexOxnyITE46znnG .actorPopupMenuPanel{position:absolute;fill:#ECECFF;box-shadow:0px 8px 16px 0px rgba(0,0,0,0.2);filter:drop-shadow(3px 5px 2px rgb(0 0 0 \/ 0.4));}#mermaid-svg-rexOxnyITE46znnG .actor-man line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;}#mermaid-svg-rexOxnyITE46znnG .actor-man circle,#mermaid-svg-rexOxnyITE46znnG line{stroke:hsl(259.6261682243, 59.7765363128%, 87.9019607843%);fill:#ECECFF;stroke-width:2px;}#mermaid-svg-rexOxnyITE46znnG :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    \u7b2c\u4e00\u6b21\u63e1\u624b<\/p>\n

    connect() (TDI_CONNECT)<\/p>\n

    \u5206\u914d\u672c\u5730\u7aef\u53e3 + \u521b\u5efa TDI_BUCKET<\/p>\n

    LibTCPConnect (\u6392\u961f\u5230 tcpip \u7ebf\u7a0b)<\/p>\n

    \u53d1\u9001 SYN (tcp_connect)<\/p>\n

    \u6536\u5230 SYN+ACK<\/p>\n

    \u53d1\u9001 ACK (\u7b2c\u4e8c\u6b21\/\u7b2c\u4e09\u6b21\u63e1\u624b)<\/p>\n

    InternalConnectEventHandler (err=ERR_OK)<\/p>\n

    TCPConnectEventHandler \u5b8c\u6210\u6240\u6709\u8fde\u63a5\u8bf7\u6c42<\/p>\n

    \u8fde\u63a5\u6210\u529f (IoCompleteRequest)<\/p>\n

    14.2 TCP \u6570\u636e\u53d1\u9001\u6d41\u7a0b<\/h4>\n

    #mermaid-svg-8ganwPQbVs6NqoPE{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-8ganwPQbVs6NqoPE .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-8ganwPQbVs6NqoPE .error-icon{fill:#552222;}#mermaid-svg-8ganwPQbVs6NqoPE .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-8ganwPQbVs6NqoPE .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-8ganwPQbVs6NqoPE .marker{fill:#333333;stroke:#333333;}#mermaid-svg-8ganwPQbVs6NqoPE .marker.cross{stroke:#333333;}#mermaid-svg-8ganwPQbVs6NqoPE svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-8ganwPQbVs6NqoPE p{margin:0;}#mermaid-svg-8ganwPQbVs6NqoPE .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-8ganwPQbVs6NqoPE .cluster-label text{fill:#333;}#mermaid-svg-8ganwPQbVs6NqoPE .cluster-label span{color:#333;}#mermaid-svg-8ganwPQbVs6NqoPE .cluster-label span p{background-color:transparent;}#mermaid-svg-8ganwPQbVs6NqoPE .label text,#mermaid-svg-8ganwPQbVs6NqoPE span{fill:#333;color:#333;}#mermaid-svg-8ganwPQbVs6NqoPE .node rect,#mermaid-svg-8ganwPQbVs6NqoPE .node circle,#mermaid-svg-8ganwPQbVs6NqoPE .node ellipse,#mermaid-svg-8ganwPQbVs6NqoPE .node polygon,#mermaid-svg-8ganwPQbVs6NqoPE .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-8ganwPQbVs6NqoPE .rough-node .label text,#mermaid-svg-8ganwPQbVs6NqoPE .node .label text,#mermaid-svg-8ganwPQbVs6NqoPE .image-shape .label,#mermaid-svg-8ganwPQbVs6NqoPE .icon-shape .label{text-anchor:middle;}#mermaid-svg-8ganwPQbVs6NqoPE .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-8ganwPQbVs6NqoPE .rough-node .label,#mermaid-svg-8ganwPQbVs6NqoPE .node .label,#mermaid-svg-8ganwPQbVs6NqoPE .image-shape .label,#mermaid-svg-8ganwPQbVs6NqoPE .icon-shape .label{text-align:center;}#mermaid-svg-8ganwPQbVs6NqoPE .node.clickable{cursor:pointer;}#mermaid-svg-8ganwPQbVs6NqoPE .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-8ganwPQbVs6NqoPE .arrowheadPath{fill:#333333;}#mermaid-svg-8ganwPQbVs6NqoPE .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-8ganwPQbVs6NqoPE .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-8ganwPQbVs6NqoPE .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-8ganwPQbVs6NqoPE .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-8ganwPQbVs6NqoPE .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-8ganwPQbVs6NqoPE .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-8ganwPQbVs6NqoPE .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-8ganwPQbVs6NqoPE .cluster text{fill:#333;}#mermaid-svg-8ganwPQbVs6NqoPE .cluster span{color:#333;}#mermaid-svg-8ganwPQbVs6NqoPE div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-8ganwPQbVs6NqoPE .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-8ganwPQbVs6NqoPE rect.text{fill:none;stroke-width:0;}#mermaid-svg-8ganwPQbVs6NqoPE .icon-shape,#mermaid-svg-8ganwPQbVs6NqoPE .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-8ganwPQbVs6NqoPE .icon-shape p,#mermaid-svg-8ganwPQbVs6NqoPE .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-8ganwPQbVs6NqoPE .icon-shape .label rect,#mermaid-svg-8ganwPQbVs6NqoPE .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-8ganwPQbVs6NqoPE .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-8ganwPQbVs6NqoPE .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-8ganwPQbVs6NqoPE :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u662f<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5426<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5e94\u7528 send<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    TDI_SEND \u2192 TCPSendData<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5206\u914d TDI_BUCKET<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6302\u5165 SendRequest \u961f\u5217<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPSend<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6392\u961f tcpip_callback<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcpip \u7ebf\u7a0b: tcp_write + tcp_output<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u53d1\u9001\u7a97\u53e3\u6709\u7a7a\u95f4?<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6784\u9020 TCP \u6bb5 \u2192 IP \u5c42\u53d1\u9001<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u7b49\u5f85 tcp_sent \u4e8b\u4ef6<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcp_sent \u56de\u8c03 \u2192 InternalSendEventHandler<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    TCPSendEventHandler<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u4ece SendRequest \u53d6 Bucket<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPSend \u53d1\u9001\u4e0b\u4e00\u6279<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    CompleteBucket \u5b8c\u6210\u7528\u6237 IRP<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5e94\u7528 send \u8fd4\u56de<\/p>\n

    <\/span><\/p>\n

    14.3 TCP \u6570\u636e\u63a5\u6536\u6d41\u7a0b<\/h4>\n

    #mermaid-svg-ptEeDvx6XZn7ApUY{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-ptEeDvx6XZn7ApUY .error-icon{fill:#552222;}#mermaid-svg-ptEeDvx6XZn7ApUY .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-ptEeDvx6XZn7ApUY .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-ptEeDvx6XZn7ApUY .marker{fill:#333333;stroke:#333333;}#mermaid-svg-ptEeDvx6XZn7ApUY .marker.cross{stroke:#333333;}#mermaid-svg-ptEeDvx6XZn7ApUY svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-ptEeDvx6XZn7ApUY p{margin:0;}#mermaid-svg-ptEeDvx6XZn7ApUY .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY .cluster-label text{fill:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY .cluster-label span{color:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY .cluster-label span p{background-color:transparent;}#mermaid-svg-ptEeDvx6XZn7ApUY .label text,#mermaid-svg-ptEeDvx6XZn7ApUY span{fill:#333;color:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY .node rect,#mermaid-svg-ptEeDvx6XZn7ApUY .node circle,#mermaid-svg-ptEeDvx6XZn7ApUY .node ellipse,#mermaid-svg-ptEeDvx6XZn7ApUY .node polygon,#mermaid-svg-ptEeDvx6XZn7ApUY .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-ptEeDvx6XZn7ApUY .rough-node .label text,#mermaid-svg-ptEeDvx6XZn7ApUY .node .label text,#mermaid-svg-ptEeDvx6XZn7ApUY .image-shape .label,#mermaid-svg-ptEeDvx6XZn7ApUY .icon-shape .label{text-anchor:middle;}#mermaid-svg-ptEeDvx6XZn7ApUY .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-ptEeDvx6XZn7ApUY .rough-node .label,#mermaid-svg-ptEeDvx6XZn7ApUY .node .label,#mermaid-svg-ptEeDvx6XZn7ApUY .image-shape .label,#mermaid-svg-ptEeDvx6XZn7ApUY .icon-shape .label{text-align:center;}#mermaid-svg-ptEeDvx6XZn7ApUY .node.clickable{cursor:pointer;}#mermaid-svg-ptEeDvx6XZn7ApUY .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-ptEeDvx6XZn7ApUY .arrowheadPath{fill:#333333;}#mermaid-svg-ptEeDvx6XZn7ApUY .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-ptEeDvx6XZn7ApUY .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-ptEeDvx6XZn7ApUY .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-ptEeDvx6XZn7ApUY .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-ptEeDvx6XZn7ApUY .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-ptEeDvx6XZn7ApUY .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-ptEeDvx6XZn7ApUY .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-ptEeDvx6XZn7ApUY .cluster text{fill:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY .cluster span{color:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-ptEeDvx6XZn7ApUY .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-ptEeDvx6XZn7ApUY rect.text{fill:none;stroke-width:0;}#mermaid-svg-ptEeDvx6XZn7ApUY .icon-shape,#mermaid-svg-ptEeDvx6XZn7ApUY .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-ptEeDvx6XZn7ApUY .icon-shape p,#mermaid-svg-ptEeDvx6XZn7ApUY .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-ptEeDvx6XZn7ApUY .icon-shape .label rect,#mermaid-svg-ptEeDvx6XZn7ApUY .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-ptEeDvx6XZn7ApUY .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-ptEeDvx6XZn7ApUY .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-ptEeDvx6XZn7ApUY :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u662f<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5426<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    IP \u5c42 \u2192 TCPReceive<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibIPInsertPacket<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u521b\u5efa pbuf \u6ce8\u5165 netif<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcpip \u7ebf\u7a0b: tcp_input<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    lwIP \u6821\u9a8c\/\u5e8f\u53f7\u5904\u7406<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcp_recv \u56de\u8c03<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    InternalRecvEventHandler<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPEnqueuePacket \u6302\u5165 PacketQueue<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcp_recved \u901a\u77e5 lwIP<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    TCPRecvEventHandler<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6709\u6302\u8d77\u7684 ReceiveRequest?<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPGetDataFromConnectionQueue<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u590d\u5236\u6570\u636e\u5230\u7528\u6237 MDL \u7f13\u51b2<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    CompleteBucket \u5b8c\u6210 IRP<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5e94\u7528 recv \u8fd4\u56de<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6570\u636e\u7559\u5728\u961f\u5217\u7b49\u5f85<\/p>\n

    <\/span><\/p>\n

    14.4 \u76d1\u542c\u4e0e\u63a5\u53d7\u6d41\u7a0b<\/h4>\n

    #mermaid-svg-Pf82DBbYmNKxP41n{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-Pf82DBbYmNKxP41n .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-Pf82DBbYmNKxP41n .error-icon{fill:#552222;}#mermaid-svg-Pf82DBbYmNKxP41n .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-Pf82DBbYmNKxP41n .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-Pf82DBbYmNKxP41n .marker{fill:#333333;stroke:#333333;}#mermaid-svg-Pf82DBbYmNKxP41n .marker.cross{stroke:#333333;}#mermaid-svg-Pf82DBbYmNKxP41n svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-Pf82DBbYmNKxP41n p{margin:0;}#mermaid-svg-Pf82DBbYmNKxP41n .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-Pf82DBbYmNKxP41n .cluster-label text{fill:#333;}#mermaid-svg-Pf82DBbYmNKxP41n .cluster-label span{color:#333;}#mermaid-svg-Pf82DBbYmNKxP41n .cluster-label span p{background-color:transparent;}#mermaid-svg-Pf82DBbYmNKxP41n .label text,#mermaid-svg-Pf82DBbYmNKxP41n span{fill:#333;color:#333;}#mermaid-svg-Pf82DBbYmNKxP41n .node rect,#mermaid-svg-Pf82DBbYmNKxP41n .node circle,#mermaid-svg-Pf82DBbYmNKxP41n .node ellipse,#mermaid-svg-Pf82DBbYmNKxP41n .node polygon,#mermaid-svg-Pf82DBbYmNKxP41n .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-Pf82DBbYmNKxP41n .rough-node .label text,#mermaid-svg-Pf82DBbYmNKxP41n .node .label text,#mermaid-svg-Pf82DBbYmNKxP41n .image-shape .label,#mermaid-svg-Pf82DBbYmNKxP41n .icon-shape .label{text-anchor:middle;}#mermaid-svg-Pf82DBbYmNKxP41n .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-Pf82DBbYmNKxP41n .rough-node .label,#mermaid-svg-Pf82DBbYmNKxP41n .node .label,#mermaid-svg-Pf82DBbYmNKxP41n .image-shape .label,#mermaid-svg-Pf82DBbYmNKxP41n .icon-shape .label{text-align:center;}#mermaid-svg-Pf82DBbYmNKxP41n .node.clickable{cursor:pointer;}#mermaid-svg-Pf82DBbYmNKxP41n .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-Pf82DBbYmNKxP41n .arrowheadPath{fill:#333333;}#mermaid-svg-Pf82DBbYmNKxP41n .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-Pf82DBbYmNKxP41n .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-Pf82DBbYmNKxP41n .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-Pf82DBbYmNKxP41n .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-Pf82DBbYmNKxP41n .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-Pf82DBbYmNKxP41n .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-Pf82DBbYmNKxP41n .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-Pf82DBbYmNKxP41n .cluster text{fill:#333;}#mermaid-svg-Pf82DBbYmNKxP41n .cluster span{color:#333;}#mermaid-svg-Pf82DBbYmNKxP41n div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-Pf82DBbYmNKxP41n .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-Pf82DBbYmNKxP41n rect.text{fill:none;stroke-width:0;}#mermaid-svg-Pf82DBbYmNKxP41n .icon-shape,#mermaid-svg-Pf82DBbYmNKxP41n .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-Pf82DBbYmNKxP41n .icon-shape p,#mermaid-svg-Pf82DBbYmNKxP41n .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-Pf82DBbYmNKxP41n .icon-shape .label rect,#mermaid-svg-Pf82DBbYmNKxP41n .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-Pf82DBbYmNKxP41n .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-Pf82DBbYmNKxP41n .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-Pf82DBbYmNKxP41n :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u662f<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5426<\/p>\n

    <\/span><\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5e94\u7528 listen<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    TDI_LISTEN \u2192 TCPListen<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPBind \u7ed1\u5b9a\u5730\u5740<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPListen \u8fdb\u5165\u76d1\u542c<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcp_accept \u6ce8\u518c\u56de\u8c03<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5e94\u7528 accept \u2192 TCPAccept<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6302\u5165 ListenRequest \u961f\u5217<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u8fdc\u7aef SYN \u5230\u8fbe<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    lwIP \u5b8c\u6210\u4e09\u6b21\u63e1\u624b<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    tcp_accept \u56de\u8c03 \u2192 TCPAcceptEventHandler<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    TCPCheckPeerForAccept \u83b7\u53d6\u8fdc\u7aef\u5730\u5740<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u6210\u529f?<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u91ca\u653e\u65e7 socket \u4e0a\u4e0b\u6587<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    SocketContext = newpcb<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    LibTCPAccept \u8bbe\u7f6e\u65b0 PCB \u56de\u8c03<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    CompleteBucket \u5b8c\u6210 accept IRP<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u4ee5\u9519\u8bef\u5b8c\u6210<\/p>\n

    <\/span><\/p>\n

    <\/p>\n

    \u5e94\u7528 accept \u8fd4\u56de\u65b0 socket<\/p>\n

    <\/span><\/p>\n

    \n

    15. \u6570\u636e\u6d41\u56fe<\/h3>\n

    15.1 \u5b8c\u6574\u7684\u53d1\u9001\u6570\u636e\u6d41<\/h4>\n

    \u5e94\u7528\u7a0b\u5e8f send(buf)
    \n \u2502
    \n \u25bc
    \nTDI_SEND IRP \u2192 DispTdiSend \u2192 TCPSendData
    \n \u2502
    \n \u2502 TDI_BUCKET { Complete, Context } \u6302\u5165 SendRequest
    \n \u2502
    \n \u25bc
    \nLibTCPSend \u2192 tcpip \u7ebf\u7a0b \u2192 tcp_write(pcb, buf, len)
    \n \u2502
    \n \u2502 lwIP \u5c06\u6570\u636e\u52a0\u5165\u53d1\u9001\u961f\u5217, \u6784\u9020 TCP \u6bb5:
    \n \u2502 \u250c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2510
    \n \u2502 \u2502 TCP \u5934 (20B) \u2502
    \n \u2502 \u2502 SourcePort \/ DestPort \u2502
    \n \u2502 \u2502 Seq = snd_nxt \u2502
    \n \u2502 \u2502 Ack = rcv_nxt \u2502
    \n \u2502 \u2502 Flags = ACK | PSH \u2502
    \n \u2502 \u2502 Window = rcv_wnd \u2502
    \n \u2502 \u2502 Checksum = TCP \u4f2a\u5934\u6821\u9a8c\u548c \u2502
    \n \u2502 \u251c\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2524
    \n \u2502 \u2502 \u6570\u636e (\u5e94\u7528\u8d1f\u8f7d) \u2502
    \n \u2502 \u2514\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2500\u2518
    \n \u2502
    \n \u25bc
    \ntcp_output \u2192 IP \u5c42 (IPTransmitPacket)
    \n \u2502
    \n \u25bc
    \n\u7f51\u7edc\u63a5\u53e3\u5c42 \u2192 LAN \u2192 NDIS \u2192 \u7f51\u5361
    \n \u2502
    \n \u25bc (\u8fdc\u7aef ACK \u5230\u8fbe)
    \nlwIP tcp_in \u2192 tcp_sent \u56de\u8c03
    \n \u2502
    \n \u25bc
    \nTCPSendEventHandler \u2192 \u5b8c\u6210\u7528\u6237 IRP
    \n \u2502
    \n \u25bc
    \nsend() \u8fd4\u56de<\/p>\n

    15.2 \u5b8c\u6574\u7684\u63a5\u6536\u6570\u636e\u6d41<\/h4>\n

    \u7f51\u5361 \u2192 NDIS \u2192 \u7f51\u7edc\u63a5\u53e3\u5c42 \u2192 IP \u5c42
    \n \u2502
    \n \u25bc
    \nTCPReceive \u2192 LibIPInsertPacket \u2192 pbuf
    \n \u2502
    \n \u25bc
    \ntcpip \u7ebf\u7a0b: tcp_input
    \n \u2502
    \n \u2502 \u6821\u9a8c\u548c\u9a8c\u8bc1 \u2192 \u5e8f\u53f7\u68c0\u67e5 \u2192 \u72b6\u6001\u673a\u5904\u7406
    \n \u2502
    \n \u25bc
    \n\u6570\u636e\u5230\u8fbe \u2192 tcp_recv \u56de\u8c03 (InternalRecvEventHandler)
    \n \u2502
    \n \u251c\u2500 pbuf \u6302\u5165 Connection->PacketQueue
    \n \u251c\u2500 tcp_recved (\u6ed1\u52a8\u7a97\u53e3\u66f4\u65b0)
    \n \u2514\u2500 TCPRecvEventHandler
    \n \u2502
    \n \u25bc
    \n \u4ece ReceiveRequest \u53d6 Bucket
    \n \u2502
    \n \u25bc
    \n LibTCPGetDataFromConnectionQueue
    \n \u2502 \u4ece pbuf \u590d\u5236\u5230\u7528\u6237\u7f13\u51b2 (MDL)
    \n \u25bc
    \n CompleteBucket \u2192 \u5b8c\u6210 TDI IRP
    \n \u2502
    \n \u25bc
    \n DispDataRequestComplete \u2192 IoCompleteRequest
    \n \u2502
    \n \u25bc
    \n recv() \u8fd4\u56de\u6570\u636e<\/p>\n

    15.3 TDI_BUCKET \u751f\u547d\u5468\u671f<\/h4>\n

    \u521b\u5efa (TCPSendData\/TCPReceiveData\/TCPConnect…)
    \n \u2502 ExAllocateFromNPagedLookasideList(TdiBucketLookasideList)
    \n \u25bc
    \n\u6302\u8d77 (InsertTailList \u2192 PendingIrpList)
    \n \u2502 \u7b49\u5f85 lwIP \u4e8b\u4ef6
    \n \u25bc
    \n\u89e6\u53d1 (TCP*EventHandlers)
    \n \u2502 RemoveHeadList
    \n \u25bc
    \n\u5b8c\u6210 (CompleteBucket)
    \n \u2502 BucketCompletionWorker
    \n \u2502 \u251c\u2500 Complete(Context, Status, Information) \u2192 \u5b8c\u6210\u7528\u6237 IRP
    \n \u2502 \u251c\u2500 DereferenceObject(Connection)
    \n \u2502 \u2514\u2500 ExFreeToNPagedLookasideList(Bucket)
    \n \u25bc
    \n\u91ca\u653e<\/p>\n

    \n

    16. \u5173\u952e\u51fd\u6570\u7d22\u5f15<\/h3>\n

    16.1 TCP \u6838\u5fc3 (tcp.c)<\/h4>\n\n\u51fd\u6570\u4f4d\u7f6e\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    TCPStartup<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L208-L240)<\/td>\n\u521d\u59cb\u5316：\u7aef\u53e3\u96c6\/Bucket \u6c60\/LibIP\/\u6ce8\u518c\u534f\u8bae<\/td>\n<\/tr>\n
    TCPShutdown<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L243-L265)<\/td>\n\u6e05\u7406<\/td>\n<\/tr>\n
    TCPSocket<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L153)<\/td>\n\u521b\u5efa socket (LibTCPSocket)<\/td>\n<\/tr>\n
    TCPConnect<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L301-L424)<\/td>\n\u53d1\u8d77\u8fde\u63a5<\/td>\n<\/tr>\n
    TCPDisconnect<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L426-L526)<\/td>\n\u65ad\u5f00 (FIN\/RST)<\/td>\n<\/tr>\n
    TCPSendData<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L579-L630)<\/td>\n\u53d1\u9001\u6570\u636e<\/td>\n<\/tr>\n
    TCPReceiveData<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L528-L577)<\/td>\n\u63a5\u6536\u6570\u636e<\/td>\n<\/tr>\n
    TCPReceive<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L192-L206)<\/td>\nIP \u5c42\u63a5\u6536\u5165\u53e3<\/td>\n<\/tr>\n
    TCPClose<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L177-L190)<\/td>\n\u5173\u95ed\u8fde\u63a5<\/td>\n<\/tr>\n
    TCPTranslateError<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L267-L299)<\/td>\nerr_t \u2192 NTSTATUS<\/td>\n<\/tr>\n
    TCPAllocatePort \/ TCPFreePort<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L636-L655)<\/td>\n\u7aef\u53e3\u7ba1\u7406<\/td>\n<\/tr>\n
    TCPRemoveIRP<\/td>\n[tcp.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/tcp.c#L695)<\/td>\n\u53d6\u6d88 IRP<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    16.2 \u76d1\u542c\/\u63a5\u53d7 (accept.c)<\/h4>\n\n\u51fd\u6570\u4f4d\u7f6e\u8bf4\u660e<\/tr>\n\n\n\n\n\n
    TCPListen<\/td>\n[accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L47-L105)<\/td>\n\u76d1\u542c (LibTCPBind+Listen)<\/td>\n<\/tr>\n
    TCPAccept<\/td>\n[accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L139)<\/td>\n\u63a5\u53d7\u8fde\u63a5<\/td>\n<\/tr>\n
    TCPCheckPeerForAccept<\/td>\n[accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L17-L43)<\/td>\n\u83b7\u53d6\u8fdc\u7aef\u5730\u5740<\/td>\n<\/tr>\n
    TCPAbortListenForSocket<\/td>\n[accept.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/accept.c#L107-L137)<\/td>\n\u4e2d\u6b62\u76d1\u542c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    16.3 \u4e8b\u4ef6\u5904\u7406 (event.c)<\/h4>\n\n\u51fd\u6570\u4f4d\u7f6e\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n\n
    TCPConnectEventHandler<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L419-L441)<\/td>\n\u8fde\u63a5\u5b8c\u6210<\/td>\n<\/tr>\n
    TCPAcceptEventHandler<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L230-L291)<\/td>\n\u65b0\u8fde\u63a5\u63a5\u53d7<\/td>\n<\/tr>\n
    TCPSendEventHandler<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L293-L377)<\/td>\n\u53ef\u53d1\u9001<\/td>\n<\/tr>\n
    TCPRecvEventHandler<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L379-L417)<\/td>\n\u6570\u636e\u5230\u8fbe<\/td>\n<\/tr>\n
    TCPFinEventHandler<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L181-L228)<\/td>\n\u8fde\u63a5\u7ec8\u6b62<\/td>\n<\/tr>\n
    CompleteBucket<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L37-L50)<\/td>\n\u5b8c\u6210\u8bf7\u6c42\u6876<\/td>\n<\/tr>\n
    BucketCompletionWorker<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L21-L35)<\/td>\n\u5b8c\u6210\u5de5\u4f5c\u9879<\/td>\n<\/tr>\n
    FlushAllQueues<\/td>\n[event.c](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/transport\/tcp\/event.c#L156-L179)<\/td>\n\u6e05\u7a7a\u6240\u6709\u961f\u5217<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    16.4 lwIP \u7c98\u5408\u5c42 (lwip_glue\/tcp.c)<\/h4>\n\n\u51fd\u6570\u4f4d\u7f6e\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n\n\n\n\n\n\n
    LibTCPSocket<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L336)<\/td>\ntcp_new<\/td>\n<\/tr>\n
    LibTCPConnect<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L621-L635)<\/td>\ntcp_connect<\/td>\n<\/tr>\n
    LibTCPSend<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L556-L590)<\/td>\ntcp_write+tcp_output<\/td>\n<\/tr>\n
    LibTCPBind<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L414-L440)<\/td>\ntcp_bind<\/td>\n<\/tr>\n
    LibTCPListen<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L469-L495)<\/td>\ntcp_listen<\/td>\n<\/tr>\n
    LibTCPShutdown<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c)<\/td>\ntcp_shutdown<\/td>\n<\/tr>\n
    LibTCPClose<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c)<\/td>\ntcp_close<\/td>\n<\/tr>\n
    LibTCPEnqueuePacket<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L73-L84)<\/td>\npbuf \u5165\u961f<\/td>\n<\/tr>\n
    LibTCPGetDataFromConnectionQueue<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c#L100)<\/td>\npbuf \u51fa\u961f\u590d\u5236<\/td>\n<\/tr>\n
    LibIPInsertPacket<\/td>\n[ip.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/ip.c)<\/td>\n\u6ce8\u5165 IP \u5305<\/td>\n<\/tr>\n
    LibTCPAccept<\/td>\n[tcp.c \u7c98\u5408](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/ip\/lwip_glue\/tcp.c)<\/td>\n\u8bbe\u7f6e\u65b0 PCB \u56de\u8c03<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    \u9644\u5f55 A：\u4fdd\u7559\u7684 Linux \u79fb\u690d\u7ed3\u6784 (tcpcore.h)<\/h3>\n

    include\/tcpcore.h \u4fdd\u7559\u4e86 Linux \u5185\u6838 2.4.20 \u7684\u5b8c\u6574\u79fb\u690d：<\/p>\n\n\u7ed3\u6784\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n
    struct sk_buff<\/td>\n\u5957\u63a5\u5b57\u7f13\u51b2\u533a (head\/data\/tail\/end \u6307\u9488)<\/td>\n<\/tr>\n
    struct skb_shared_info<\/td>\nskb \u5171\u4eab\u4fe1\u606f (\u5206\u7247)<\/td>\n<\/tr>\n
    struct sk_buff_head<\/td>\nskb \u961f\u5217<\/td>\n<\/tr>\n
    struct tcp_opt<\/td>\nTCP \u9009\u9879\/\u72b6\u6001 (rcv_nxt\/snd_nxt\/snd_una\/snd_wnd \u7b49)<\/td>\n<\/tr>\n
    struct sock<\/td>\nsocket \u72b6\u6001<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u8fd9\u4e9b\u7ed3\u6784\u4fdd\u7559\u4f46\u4e0d\u518d\u662f\u6d3b\u52a8\u5b9e\u73b0（\u5f53\u524d\u4f7f\u7528 lwIP \u7684 struct tcp_pcb）\u3002<\/p>\n

    \u9644\u5f55 B：\u53c2\u8003\u6587\u6863<\/h3>\n
      \n
    • [tcpip\u4f20\u8f93\u5c42UDP\u5206\u6790](file:\/\/\/d:\/reactos\/doc\/tcpip\u4f20\u8f93\u5c42UDP\u5206\u6790.md) \u2014 UDP \u4f20\u8f93\u5c42<\/li>\n
    • [tcpip\u7f51\u7edc\u5c42IP\u5206\u6790](file:\/\/\/d:\/reactos\/doc\/tcpip\u7f51\u7edc\u5c42IP\u5206\u6790.md) \u2014 IP \u7f51\u7edc\u5c42<\/li>\n
    • [TCPIP \u9a71\u52a8\u5206\u6790](file:\/\/\/d:\/reactos\/doc\/TCPIP_\u9a71\u52a8\u5206\u6790.md) \u2014 tcpip.sys \u6574\u4f53<\/li>\n
    • [lwIP \u6e90\u7801](file:\/\/\/d:\/reactos\/drivers\/network\/tcpip\/lwip\/) \u2014 lwIP \u534f\u8bae\u6808<\/li>\n
    • RFC 793 \u2014 Transmission Control Protocol<\/li>\n
    • RFC 1122 \u2014 Requirements for Internet Hosts<\/li>\n
    • RFC 2581 \u2014 TCP Congestion Control<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

      tcpip.sys \u4f20\u8f93\u5c42 (TCP) \u8be6\u7ec6\u5206\u6790
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      \nTCP (Transmission Control Protocol，\u4f20\u8f93\u63a7\u5236\u534f\u8bae) \u662f TCP\/IP \u534f\u8bae<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[205,78,191],"topic":[],"class_list":["post-92122","post","type-post","status-publish","format-standard","hentry","category-server","tag-tcp-ip","tag-78","tag-191"],"yoast_head":"\ntcpip.sys \u4f20\u8f93\u5c42 (TCP) \u8be6\u7ec6\u5206\u6790 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/92122.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"tcpip.sys \u4f20\u8f93\u5c42 (TCP) \u8be6\u7ec6\u5206\u6790 - 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