1 /** @file 2 I/O interfaces between TCP and IpIo. 3 4 Copyright (c) 2005 - 2009, Intel Corporation. All rights reserved.<BR> 5 This program and the accompanying materials 6 are licensed and made available under the terms and conditions of the BSD License 7 which accompanies this distribution. The full text of the license may be found at 8 http://opensource.org/licenses/bsd-license.php<BR> 9 10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 13 **/ 14 15 #include "Tcp4Main.h" 16 17 18 /** 19 Packet receive callback function provided to IP_IO, used to call 20 the proper function to handle the packet received by IP. 21 22 @param Status Status of the received packet. 23 @param IcmpErr ICMP error number. 24 @param NetSession Pointer to the net session of this packet. 25 @param Pkt Pointer to the recieved packet. 26 @param Context Pointer to the context configured in IpIoOpen(), not used 27 now. 28 29 **/ 30 VOID 31 EFIAPI 32 Tcp4RxCallback ( 33 IN EFI_STATUS Status, 34 IN UINT8 IcmpErr, 35 IN EFI_NET_SESSION_DATA *NetSession, 36 IN NET_BUF *Pkt, 37 IN VOID *Context OPTIONAL 38 ) 39 { 40 if (EFI_SUCCESS == Status) { 41 TcpInput (Pkt, NetSession->Source.Addr[0], NetSession->Dest.Addr[0]); 42 } else { 43 TcpIcmpInput (Pkt, IcmpErr, NetSession->Source.Addr[0], NetSession->Dest.Addr[0]); 44 } 45 } 46 47 48 /** 49 Send the segment to IP via IpIo function. 50 51 @param Tcb Pointer to the TCP_CB of this TCP instance. 52 @param Nbuf Pointer to the TCP segment to be sent. 53 @param Src Source address of the TCP segment. 54 @param Dest Destination address of the TCP segment. 55 56 @retval 0 The segment was sent out successfully. 57 @retval -1 The segment was failed to send. 58 59 **/ 60 INTN 61 TcpSendIpPacket ( 62 IN TCP_CB *Tcb, 63 IN NET_BUF *Nbuf, 64 IN UINT32 Src, 65 IN UINT32 Dest 66 ) 67 { 68 EFI_STATUS Status; 69 IP_IO *IpIo; 70 IP_IO_OVERRIDE Override; 71 SOCKET *Sock; 72 VOID *IpSender; 73 TCP4_PROTO_DATA *TcpProto; 74 EFI_IP_ADDRESS Source; 75 EFI_IP_ADDRESS Destination; 76 77 Source.Addr[0] = Src; 78 Destination.Addr[0] = Dest; 79 80 if (NULL == Tcb) { 81 82 IpIo = NULL; 83 IpSender = IpIoFindSender (&IpIo, IP_VERSION_4, &Source); 84 85 if (IpSender == NULL) { 86 DEBUG ((EFI_D_WARN, "TcpSendIpPacket: No appropriate IpSender.\n")); 87 return -1; 88 } 89 } else { 90 91 Sock = Tcb->Sk; 92 TcpProto = (TCP4_PROTO_DATA *) Sock->ProtoReserved; 93 IpIo = TcpProto->TcpService->IpIo; 94 IpSender = Tcb->IpInfo; 95 } 96 97 Override.Ip4OverrideData.TypeOfService = 0; 98 Override.Ip4OverrideData.TimeToLive = 255; 99 Override.Ip4OverrideData.DoNotFragment = FALSE; 100 Override.Ip4OverrideData.Protocol = EFI_IP_PROTO_TCP; 101 ZeroMem (&Override.Ip4OverrideData.GatewayAddress, sizeof (EFI_IPv4_ADDRESS)); 102 CopyMem (&Override.Ip4OverrideData.SourceAddress, &Src, sizeof (EFI_IPv4_ADDRESS)); 103 104 Status = IpIoSend (IpIo, Nbuf, IpSender, NULL, NULL, &Destination, &Override); 105 106 if (EFI_ERROR (Status)) { 107 DEBUG ((EFI_D_ERROR, "TcpSendIpPacket: return %r error\n", Status)); 108 return -1; 109 } 110 111 return 0; 112 } 113
