From 8a67d61da4d5a8f08a656cbeea2d902d0ad9042a Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 24 Jul 2007 08:06:37 +0000
Subject: Import SnpDxe, Tcp4Dxe, Udp4Dxe and MnpDxe.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3416 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Io.c | 117 ++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Io.c

(limited to 'MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Io.c')

diff --git a/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Io.c b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Io.c
new file mode 100644
index 0000000000..2f7a49fcb8
--- /dev/null
+++ b/MdeModulePkg/Universal/Network/Tcp4Dxe/Tcp4Io.c
@@ -0,0 +1,117 @@
+/** @file
+
+Copyright (c) 2005 - 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+  Tcp4Io.c
+
+Abstract:
+
+  I/O interfaces between TCP and IpIo.
+
+
+**/
+
+
+#include "Tcp4Main.h"
+
+
+/**
+  Packet receive callback function provided to IP_IO, used to call
+  the proper function to handle the packet received by IP.
+
+  @param  Status      Status of the received packet.
+  @param  IcmpErr     ICMP error number.
+  @param  NetSession  Pointer to the net session of this packet.
+  @param  Pkt         Pointer to the recieved packet.
+  @param  Context     Pointer to the context configured in IpIoOpen(), not used
+                      now.
+
+  @return None
+
+**/
+VOID
+Tcp4RxCallback (
+  IN EFI_STATUS                       Status,
+  IN ICMP_ERROR                       IcmpErr,
+  IN EFI_NET_SESSION_DATA             *NetSession,
+  IN NET_BUF                          *Pkt,
+  IN VOID                             *Context    OPTIONAL
+  )
+{
+  if (EFI_SUCCESS == Status) {
+    TcpInput (Pkt, NetSession->Source, NetSession->Dest);
+  } else {
+    TcpIcmpInput (Pkt, IcmpErr, NetSession->Source, NetSession->Dest);
+  }
+}
+
+
+/**
+  Send the segment to IP via IpIo function.
+
+  @param  Tcb         Pointer to the TCP_CB of this TCP instance.
+  @param  Nbuf        Pointer to the TCP segment to be sent.
+  @param  Src         Source address of the TCP segment.
+  @param  Dest        Destination address of the TCP segment.
+
+  @retval 0           The segment was sent out successfully.
+  @retval -1          The segment was failed to send.
+
+**/
+INTN
+TcpSendIpPacket (
+  IN TCP_CB    *Tcb,
+  IN NET_BUF   *Nbuf,
+  IN UINT32    Src,
+  IN UINT32    Dest
+  )
+{
+  EFI_STATUS       Status;
+  IP_IO            *IpIo;
+  IP_IO_OVERRIDE   Override;
+  SOCKET           *Sock;
+  VOID             *IpSender;
+  TCP4_PROTO_DATA  *TcpProto;
+
+  if (NULL == Tcb) {
+
+    IpIo     = NULL;
+    IpSender = IpIoFindSender (&IpIo, Src);
+
+    if (IpSender == NULL) {
+      TCP4_DEBUG_WARN (("TcpSendIpPacket: No appropriate IpSender.\n"));
+      return -1;
+    }
+  } else {
+
+    Sock     = Tcb->Sk;
+    TcpProto = (TCP4_PROTO_DATA *) Sock->ProtoReserved;
+    IpIo     = TcpProto->TcpService->IpIo;
+    IpSender = Tcb->IpInfo;
+  }
+
+  Override.TypeOfService            = 0;
+  Override.TimeToLive               = 255;
+  Override.DoNotFragment            = FALSE;
+  Override.Protocol                 = EFI_IP_PROTO_TCP;
+  EFI_IP4 (Override.GatewayAddress) = 0;
+  EFI_IP4 (Override.SourceAddress)  = Src;
+
+  Status = IpIoSend (IpIo, Nbuf, IpSender, NULL, NULL, Dest, &Override);
+
+  if (EFI_ERROR (Status)) {
+    TCP4_DEBUG_ERROR (("TcpSendIpPacket: return %r error\n", Status));
+    return -1;
+  }
+
+  return 0;
+}
-- 
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