diff options
Diffstat (limited to 'MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h')
| -rw-r--r-- | MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h | 1472 |
1 files changed, 736 insertions, 736 deletions
diff --git a/MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h b/MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h index a482eb9cd9..84ffd75bd6 100644 --- a/MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h +++ b/MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h @@ -1,736 +1,736 @@ -/** @file - -Copyright (c) 2004 - 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. - - -**/ - -#ifndef _IP_H_ -#define _IP_H_ - -#include "hton.h" - -// -// portability macros -// -#define UDP_FILTER_MASK (EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | \ - EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT | \ - EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP | \ - EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT | \ - EFI_PXE_BASE_CODE_UDP_OPFLAGS_USE_FILTER \ - ) - -#define PXE_BOOT_LAYER_MASK 0x7FFF -#define PXE_BOOT_LAYER_INITIAL 0x0000 -#define PXE_BOOT_LAYER_CREDENTIAL_FLAG 0x8000 -#define MAX_BOOT_SERVERS 32 - -// -// macro to evaluate IP address as TRUE if it is a multicast IP address -// -#define IS_MULTICAST(ptr) ((*((UINT8 *) ptr) & 0xf0) == 0xe0) - -// -// length macros -// -#define IP_ADDRESS_LENGTH(qp) (((qp)->UsingIpv6) ? sizeof (EFI_IPv6_ADDRESS) : sizeof (EFI_IPv4_ADDRESS)) - -#define MAX_FRAME_DATA_SIZE 1488 -#define ALLOCATE_SIZE(X) (((X) + 7) & 0xfff8) -#define MODE_ALLOCATE_SIZE ALLOCATE_SIZE (sizeof (EFI_PXE_BASE_CODE_MODE)) -#define BUFFER_ALLOCATE_SIZE (8192 + 512) -#define ROUTER_ALLOCATE_SIZE ALLOCATE_SIZE ((sizeof (EFI_PXE_BASE_CODE_ROUTE_ENTRY) * PXE_ROUTER_TABLE_SIZE)) -#define ARP_ALLOCATE_SIZE ALLOCATE_SIZE ((sizeof (EFI_PXE_BASE_CODE_ARP_ENTRY) * PXE_ARP_CACHE_SIZE)) -#define FILTER_ALLOCATE_SIZE ALLOCATE_SIZE ((sizeof (EFI_IP_ADDRESS) * PXE_IP_FILTER_SIZE)) -#define PXE_ARP_CACHE_SIZE 8 -#define PXE_ROUTER_TABLE_SIZE 8 -#define PXE_IP_FILTER_SIZE 8 -#define ICMP_ALLOCATE_SIZE ALLOCATE_SIZE (sizeof (EFI_PXE_BASE_CODE_ICMP_ERROR)) -#define TFTP_ERR_ALLOCATE_SIZE ALLOCATE_SIZE (sizeof (EFI_PXE_BASE_CODE_TFTP_ERROR)) - -// -// DHCP discover/request packets are sent to this UDP port. ProxyDHCP -// servers listen on this port for DHCP discover packets that have a -// class identifier (option 60) with 'PXEClient' in the first 9 bytes. -// Bootservers also listen on this port for PXE broadcast discover -// requests from PXE clients. -// -#define DHCP_SERVER_PORT 67 - -// -// When DHCP, proxyDHCP and Bootservers respond to DHCP and PXE broadcast -// discover requests by broadcasting the reply packet, the packet is -// broadcast to this port. -// -#define DHCP_CLIENT_PORT 68 - -// -// TFTP servers listen for TFTP open requests on this port. -// -#define TFTP_OPEN_PORT 69 - -// -// proxyDHCP and Bootservers listen on this port for a PXE unicast and/or -// multicast discover requests from PXE clients. A PXE discover request -// looks like a DHCP discover or DHCP request packet. -// -#define PXE_DISCOVERY_PORT 4011 - -// -// This port is used by the PXE client/server protocol tests. -// -#define PXE_PORT_PXETEST_PORT 0x8080 - -// -// Definitions for Ethertype protocol numbers and interface types -// Per RFC 1700, -// -#define PXE_PROTOCOL_ETHERNET_IP 0x0800 -#define PXE_PROTOCOL_ETHERNET_ARP 0x0806 -#define PXE_PROTOCOL_ETHERNET_RARP 0x8035 - -#define PXE_IFTYPE_ETHERNET 0x01 -#define PXE_IFTYPE_TOKENRING 0x04 -#define PXE_IFTYPE_FIBRE_CHANNEL 0x12 - -// -// Definitions for internet protocol version 4 header -// Per RFC 791, September 1981. -// -#define IPVER4 4 - -#pragma pack(1) // make network structures packed byte alignment -typedef union { - UINT8 B[4]; - UINT32 L; -} IPV4_ADDR; - -#define IPV4_HEADER_LENGTH(IpHeaderPtr) (((IpHeaderPtr)->VersionIhl & 0xf) << 2) - -#define SET_IPV4_VER_HDL(IpHeaderPtr, IpHeaderLen) { \ - (IpHeaderPtr)->VersionIhl = (UINT8) ((IPVER4 << 4) | ((IpHeaderLen) >> 2)); \ - } - -typedef struct { - UINT8 VersionIhl; - UINT8 TypeOfService; - UINT16 TotalLength; - UINT16 Id; - UINT16 FragmentFields; - UINT8 TimeToLive; - UINT8 Protocol; - UINT16 HeaderChecksum; - IPV4_ADDR SrcAddr; - IPV4_ADDR DestAddr; - // - // options are not implemented - // -} IPV4_HEADER; - -#define IP_FRAG_RSVD 0x8000 // reserved bit - must be zero -#define IP_NO_FRAG 0x4000 // do not fragment bit -#define IP_MORE_FRAG 0x2000 // not last fragment -#define IP_FRAG_OFF_MSK 0x1fff // fragment offset in 8 byte chunks -#define DEFAULT_RFC_TTL 64 - -#define PROT_ICMP 1 -#define PROT_IGMP 2 -#define PROT_TCP 6 -#define PROT_UDP 17 - -/* - * Definitions for internet control message protocol version 4 message - * structure. Per RFC 792, September 1981. - */ - -// -// icmp header for all icmp messages -// -typedef struct { - UINT8 Type; // message type - UINT8 Code; // type specific - 0 for types we implement - UINT16 Checksum; // ones complement of ones complement sum of 16 bit words of message -} ICMPV4_HEADER; - -#define ICMP_DEST_UNREACHABLE 3 -#define ICMP_SOURCE_QUENCH 4 -#define ICMP_REDIRECT 5 -#define ICMP_ECHO 8 -#define ICMP_ECHO_REPLY 0 -#define ICMP_ROUTER_ADV 9 -#define ICMP_ROUTER_SOLICIT 10 -#define ICMP_TIME_EXCEEDED 11 -#define ICMP_PARAMETER_PROBLEM 12 -#define ICMP_TIMESTAMP 13 -#define ICMP_TIMESTAMP_REPLY 14 -#define ICMP_INFO_REQ 15 -#define ICMP_INFO_REQ_REPLY 16 -#define ICMP_SUBNET_MASK_REQ 17 -#define ICMP_SUBNET_MASK_REPLY 18 -// -// other ICMP message types ignored in this implementation -// -// icmp general messages -// -typedef struct { - ICMPV4_HEADER Header; - // - // generally unused except byte [0] for - // parameter problem message - // - UINT8 GenerallyUnused[4]; - // - // original message ip header of plus 64 - // bits of data - // - IPV4_HEADER IpHeader; -} ICMPV4_GENERAL_MESSAGE; - -// -// icmp req/rply message header -// -typedef struct { - ICMPV4_HEADER Header; - UINT16 Id; - UINT16 SequenceNumber; -} ICMPV4_REQUEST_REPLY_HEADER; - -// -// icmp echo message -// -typedef struct { - ICMPV4_REQUEST_REPLY_HEADER Header; - UINT8 EchoData[1]; // variable length data to be echoed -} ICMPV4_ECHO_MESSAGE; - -// -// icmp timestamp message - times are milliseconds since midnight UT - -// if non std, set high order bit -// -typedef struct { - ICMPV4_REQUEST_REPLY_HEADER Header; - UINT32 OriginalTime; // originating timestamp - UINT32 ReceiveTime; // receiving timestamp - UINT32 TransmitTime; // transmitting timestamp -} ICMPV4_TIMESTAMP_MESSAGE; - -// -// icmp info request structure - fill in source and dest net ip address on reply -// -typedef struct { - ICMPV4_REQUEST_REPLY_HEADER Header; -} ICMPV4_INFO_MESSAGE; - -// -// Definitions for internet control message protocol version 4 message structure -// Router discovery -// Per RFC 1256, September 1991. -// -// -// icmp router advertisement message -// -typedef struct { - ICMPV4_HEADER Header; - UINT8 NumberEntries; // number of address entries - UINT8 EntrySize; // number of 32 bit words per address entry - UINT16 Lifetime; // seconds to consider info valid - UINT32 RouterIp; - UINT32 Preferance; -} ICMPV4_ROUTER_ADVERTISE_MESSAGE; - -// -// icmp router solicitation message -// -typedef struct { - ICMPV4_HEADER Header; - UINT32 Reserved; -} ICMPV4_ROUTER_SOLICIT_MESSAGE; - -#define MAX_SOLICITATION_DELAY 1 // 1 second -#define SOLICITATION_INTERVAL 3 // 3 seconds -#define MAX_SOLICITATIONS 3 // 3 transmissions -#define V1ROUTER_PRESENT_TIMEOUT 400 // 400 second timeout until v2 reports can be sent -#define UNSOLICITED_REPORT_INTERVAL 10 // 10 seconds between unsolicited reports -#define BROADCAST_IPv4 0xffffffff - -// -// Definitions for address resolution protocol message structure -// Per RFC 826, November 1982 -// -typedef struct { - UINT16 HwType; // hardware type - e.g. ethernet (1) - UINT16 ProtType; // protocol type - for ethernet, 0x800 for IP - UINT8 HwAddLen; // byte length of a hardware address (e.g. 6 for ethernet) - UINT8 ProtAddLen; // byte length of a protocol address (e.g. 4 for ipv4) - UINT16 OpCode; - // - // source and dest hw and prot addresses follow - see example below - // -} ARP_HEADER; - -#define ETHERNET_ADD_SPC 1 - -#define ETHER_TYPE_IP 0x800 - -#define ARP_REQUEST 1 -#define ARP_REPLY 2 - -// -// generic ARP packet -// -typedef struct { - ARP_HEADER ArpHeader; - EFI_MAC_ADDRESS SrcHardwareAddr; - EFI_IP_ADDRESS SrcProtocolAddr; - EFI_MAC_ADDRESS DestHardwareAddr; - EFI_IP_ADDRESS DestProtocolAddr; -} ARP_PACKET; - -#define ENET_HWADDLEN 6 -#define IPV4_PROTADDLEN 4 - -// -// Definitions for user datagram protocol version 4 pseudo header & header -// Per RFC 768, 28 August 1980 -// -typedef struct { - IPV4_ADDR SrcAddr; // source ip address - IPV4_ADDR DestAddr; // dest ip address - UINT8 Zero; // 0 - UINT8 Protocol; // protocol - UINT16 TotalLength; // UDP length - sizeof udpv4hdr + data length -} UDPV4_PSEUDO_HEADER; - -typedef struct { - UINT16 SrcPort; // source port identifier - UINT16 DestPort; // destination port identifier - UINT16 TotalLength; // total length header plus data - // - // ones complement of ones complement sum of 16 bit - // words of pseudo header, UDP header, and data - // zero checksum is transmitted as -0 (ones comp) - // zero transmitted means checksum not computed - // data follows - // - UINT16 Checksum; -} UDPV4_HEADER; - -typedef struct { - UDPV4_PSEUDO_HEADER Udpv4PseudoHeader; - UDPV4_HEADER Udpv4Header; -} UDPV4_HEADERS; - -// -// Definitions for transmission control protocol header -// Per RFC 793, September, 1981 -// -typedef struct { - IPV4_ADDR SrcAddr; // source ip address - IPV4_ADDR DestAddr; // dest ip address - UINT8 Zero; // 0 - UINT8 Protocol; // protocol - UINT16 TotalLength; // TCP length - TCP header length + data length -} TCPV4_PSEUDO_HEADER; - -typedef struct { - UINT16 SrcPort; // source port identifier - UINT16 DestPort; // destination port identifier - UINT32 SeqNumber; // Sequence number - UINT32 AckNumber; // Acknowledgement Number - // - // Nibble of HLEN (length of header in 32-bit multiples) - // 6bits of RESERVED - // Nibble of Code Bits - // - UINT16 HlenResCode; - UINT16 Window; // Software buffer size (sliding window size) in network-standard byte order - // - // ones complement of ones complement sum of 16 bit words of - // pseudo header, TCP header, and data - // zero checksum is transmitted as -0 (ones comp) - // zero transmitted means checksum not computed - // - UINT16 Checksum; - UINT16 UrgentPointer; // pointer to urgent data (allows sender to specify urgent data) -} TCPV4_HEADER; - -typedef struct { - TCPV4_PSEUDO_HEADER Tcpv4PseudoHeader; - TCPV4_HEADER Tcpv4Header; -} TCPV4_HEADERS; - -typedef struct { - UINT8 Kind; // one of the following: - UINT8 Length; // total option length including Kind and Lth - UINT8 Data[1]; // length = Lth - 2 -} TCPV4_OPTION; - -#define TCP_OP_END 0 // only used to pad to end of TCP header -#define TCP_NOP 1 // optional - may be used to pad between options to get alignment -#define TCP_MAX_SEG 2 // maximum receive segment size - only send at initial connection request -#define MAX_MEDIA_HDR_SIZE 64 -#define MIN_ENET_DATA_SIZE 64 -#define MAX_ENET_DATA_SIZE 1500 // temp def - make a network based var -#define MAX_IPV4_PKT_SIZE 65535 // maximum IP packet size -#define MAX_IPV4_DATA_SIZE (MAX_IPV4_PKT_SIZE - sizeof (IPV4_HEADER)) -#define MAX_IPV4_FRAME_DATA_SIZE (MAX_FRAME_DATA_SIZE - sizeof (IPV4_HEADER)) -#define REAS_IPV4_PKT_SIZE 576 // minimum IP packet size all IP host can handle -#define REAS_IPV4_DATA_SIZE (REAS_IPV4_PKT_SIZE - sizeof (IPV4_HEADER)) - -// -// -// -typedef union { - UINT8 Data[MAX_ENET_DATA_SIZE]; - ICMPV4_HEADER IcmpHeader; - IGMPV2_MESSAGE IgmpMessage; - struct { - UDPV4_HEADER UdpHeader; - UINT8 Data[1]; - } Udp; - struct { - TCPV4_HEADER TcpHeader; - UINT8 Data[1]; - } Tcp; -} PROTOCOL_UNION; - -// -// out buffer structure -// -typedef struct { - UINT8 MediaHeader[MAX_MEDIA_HDR_SIZE]; - IPV4_HEADER IpHeader; - // - // following union placement only valid if no option IP header - // - PROTOCOL_UNION u; -} IPV4_BUFFER; - -typedef struct { - IPV4_HEADER IpHeader; - // - // following union placement only valid if no option IP header - // - PROTOCOL_UNION u; -} IPV4_STRUCT; - -#pragma pack() // reset to default - - //////////////////////////////////////////////////////////// -// -// BC IP Filter Routine -// -EFI_STATUS -IpFilter ( - PXE_BASECODE_DEVICE *Private, - IN EFI_PXE_BASE_CODE_IP_FILTER *Filter - ) -; - -// -// ////////////////////////////////////////////////////////////////////// -// -// Udp Write Routine - called by base code - e.g. TFTP - already locked -// -EFI_STATUS -UdpWrite ( - IN PXE_BASECODE_DEVICE *Private, - IN UINT16 OpFlags, - IN EFI_IP_ADDRESS *DestIpPtr, - IN EFI_PXE_BASE_CODE_UDP_PORT *DestPortptr, - IN EFI_IP_ADDRESS *GatewayIpPtr, OPTIONAL - IN EFI_IP_ADDRESS *SrcIpPtr, OPTIONAL - IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPortPtr, OPTIONAL - IN UINTN *HeaderSizePtr, OPTIONAL - IN VOID *HeaderPtr, OPTIONAL - IN UINTN *BufferSizePtr, - IN VOID *BufferPtr - ) -; - -// -// ///////////////////////////////////////////////////////////////////// -// -// Udp Read Routine - called by base code - e.g. TFTP - already locked -// -EFI_STATUS -UdpRead ( - IN PXE_BASECODE_DEVICE *Private, - IN UINT16 OpFlags, - IN OUT EFI_IP_ADDRESS *DestIpPtr, OPTIONAL - IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPorPtrt, OPTIONAL - IN OUT EFI_IP_ADDRESS *SrcIpPtr, OPTIONAL - IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPortPtr, OPTIONAL - IN UINTN *HeaderSizePtr, OPTIONAL - IN VOID *HeaderPtr, OPTIONAL - IN OUT UINTN *BufferSizePtr, - IN VOID *BufferPtr, - IN EFI_EVENT TimeoutEvent - ) -; - -VOID -IgmpLeaveGroup ( - PXE_BASECODE_DEVICE *Private, - EFI_IP_ADDRESS * - ) -; - -VOID -IgmpJoinGroup ( - PXE_BASECODE_DEVICE *Private, - EFI_IP_ADDRESS * - ) -; - -// -// convert number to zero filled ascii value of length lth -// -VOID -CvtNum ( - UINTN Number, - UINT8 *BufferPtr, - INTN BufferLen - ) -; - -// -// convert number to ascii string at ptr -// -VOID -UtoA10 ( - UINTN Number, - UINT8 *BufferPtr - ) -; - -// -// convert ascii numeric string to UINTN -// -UINTN -AtoU ( - UINT8 *BufferPtr - ) -; - -UINT64 -AtoU64 ( - UINT8 *BufferPtr - ) -; - -// -// calculate the internet checksum (RFC 1071) -// return 16 bit ones complement of ones complement sum of 16 bit words -// -UINT16 -IpChecksum ( - UINT16 *MessagePtr, - UINTN ByteLength - ) -; - -// -// do checksum on non contiguous header and data -// -UINT16 -IpChecksum2 ( - UINT16 *Header, - UINTN HeaderLength, - UINT16 *Message, - UINTN MessageLength - ) -; - -// -// update checksum when only a single word changes -// -UINT16 -UpdateChecksum ( - UINT16 OldChecksum, - UINT16 OldWord, - UINT16 NewWord - ) -; - -VOID -SeedRandom ( - IN PXE_BASECODE_DEVICE *Private, - IN UINT16 InitialSeed - ) -; - -UINT16 -Random ( - IN PXE_BASECODE_DEVICE *Private - ) -; - -EFI_STATUS -SendPacket ( - PXE_BASECODE_DEVICE *Private, - VOID *HeaderPtr, - VOID *PacketPtr, - INTN PacketLength, - VOID *HardwareAddress, - UINT16 MediaProtocol, - IN EFI_PXE_BASE_CODE_FUNCTION Function - ) -; - -VOID -HandleArpReceive ( - PXE_BASECODE_DEVICE *Private, - ARP_PACKET *ArpPacketPtr, - VOID *HeaderPtr - ) -; - -VOID -HandleIgmp ( - PXE_BASECODE_DEVICE *Private, - IGMPV2_MESSAGE *IgmpMessageptr, - UINTN IgmpMessageLen - ) -; - -VOID -IgmpCheckTimers ( - PXE_BASECODE_DEVICE *Private - ) -; // poll when doing a receive -// return hw add of IP and TRUE if available, otherwise FALSE -// -BOOLEAN -GetHwAddr ( - IN PXE_BASECODE_DEVICE *Private, - EFI_IP_ADDRESS *ProtocolAddressPtr, - EFI_MAC_ADDRESS *HardwareAddressPtr - ) -; - -EFI_STATUS -DoArp ( - IN PXE_BASECODE_DEVICE *Private, - IN EFI_IP_ADDRESS *ProtocolAddressPtr, - OUT EFI_MAC_ADDRESS *HardwareAddressptr - ) -; - -BOOLEAN -OnSameSubnet ( - UINTN IpAddressLen, - EFI_IP_ADDRESS *Ip1, - EFI_IP_ADDRESS *Ip2, - EFI_IP_ADDRESS *SubnetMask - ) -; - -VOID -IpAddRouter ( - PXE_BASECODE_DEVICE *Private, - EFI_IP_ADDRESS *RouterIp - ) -; - -#define Ip4AddRouter(Private, Ipv4Ptr) IpAddRouter (Private, (EFI_IP_ADDRESS *) Ipv4Ptr) - -// -// routine to send ipv4 packet -// ipv4 + upper protocol header for length TotHdrLth in xmtbuf, ipv4 header length IpHdrLth -// routine fills in ipv4hdr Ver_Hdl, TotLth, and Checksum, moves in Data, and gets dest MAC address -// -EFI_STATUS -Ipv4Xmt ( - PXE_BASECODE_DEVICE *Private, - UINT32 GatewayIP, - UINTN IpHeaderLen, - UINTN TotalHeaderLen, - VOID *Data, - UINTN DataLen, - EFI_PXE_BASE_CODE_FUNCTION Function - ) -; - -// -// send ipv4 packet with ipv4 option -// -EFI_STATUS -Ipv4SendWOp ( - PXE_BASECODE_DEVICE *Private, - UINT32 GatewayIP, - UINT8 *MessagePtr, - UINTN MessageLth, - UINT8 Protocol, - UINT8 *Option, - UINTN OptionLen, - UINT32 DestIp, - EFI_PXE_BASE_CODE_FUNCTION Function - ) -; - -// -// send MsgLth message at MsgPtr - higher level protocol header already in xmtbuf, length HdrSize -// -EFI_STATUS -Ip4Send ( - IN PXE_BASECODE_DEVICE *Private, // pointer to instance data - IN UINTN MayFragment, // - IN UINT8 Protocol, // protocol - IN UINT32 SrcIp, // Source IP address - IN UINT32 DestIp, // Destination IP address - IN UINT32 GatewayIp, // used if not NULL and needed - IN UINTN HeaderSize, // protocol header byte length - IN UINT8 *MsgPtr, // pointer to data - IN UINTN MsgLength - ) -; // data byte length -// receive up to MsgLth message into MsgPtr for protocol Prot -// return message length, src/dest ips if select any, and pointer to protocol header -// -EFI_STATUS -IpReceive ( - IN PXE_BASECODE_DEVICE *Private, // pointer to instance data - UINT16 OpFlags, // Flags to determine if filtering on IP addresses - EFI_IP_ADDRESS *SrcIpPtr, // if filtering, O if accept any - EFI_IP_ADDRESS *DstIpPtr, // if filtering, O if accept any - UINT8 Protocol, // protocol - VOID *HeaderPtr, // address of where to put protocol header - UINTN HeaderSize, // protocol header byte length - UINT8 *MsgPtr, // pointer to data buffer - UINTN *MsgLenPtr, // pointer to data buffer length/ O - returned data length - IN EFI_EVENT TimeoutEvent - ) -; - -#if 0 -VOID -WaitForTxComplete ( - IN PXE_BASECODE_DEVICE *Private - ) -; -#endif -// -// routine to cycle waiting for a receive or timeout -// -EFI_STATUS -WaitForReceive ( - IN PXE_BASECODE_DEVICE *Private, - IN EFI_PXE_BASE_CODE_FUNCTION Function, - IN EFI_EVENT TimeoutEvent, - IN OUT UINTN *HeaderSizePtr, - IN OUT UINTN *BufferSizePtr, - IN OUT UINT16 *ProtocolPtr - ) -; - -#endif /* _IP_H_ */ - -/* EOF - ip.h */ +/** @file
+
+Copyright (c) 2004 - 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.
+
+
+**/
+
+#ifndef _IP_H_
+#define _IP_H_
+
+#include "hton.h"
+
+//
+// portability macros
+//
+#define UDP_FILTER_MASK (EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP | \
+ EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT | \
+ EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP | \
+ EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT | \
+ EFI_PXE_BASE_CODE_UDP_OPFLAGS_USE_FILTER \
+ )
+
+#define PXE_BOOT_LAYER_MASK 0x7FFF
+#define PXE_BOOT_LAYER_INITIAL 0x0000
+#define PXE_BOOT_LAYER_CREDENTIAL_FLAG 0x8000
+#define MAX_BOOT_SERVERS 32
+
+//
+// macro to evaluate IP address as TRUE if it is a multicast IP address
+//
+#define IS_MULTICAST(ptr) ((*((UINT8 *) ptr) & 0xf0) == 0xe0)
+
+//
+// length macros
+//
+#define IP_ADDRESS_LENGTH(qp) (((qp)->UsingIpv6) ? sizeof (EFI_IPv6_ADDRESS) : sizeof (EFI_IPv4_ADDRESS))
+
+#define MAX_FRAME_DATA_SIZE 1488
+#define ALLOCATE_SIZE(X) (((X) + 7) & 0xfff8)
+#define MODE_ALLOCATE_SIZE ALLOCATE_SIZE (sizeof (EFI_PXE_BASE_CODE_MODE))
+#define BUFFER_ALLOCATE_SIZE (8192 + 512)
+#define ROUTER_ALLOCATE_SIZE ALLOCATE_SIZE ((sizeof (EFI_PXE_BASE_CODE_ROUTE_ENTRY) * PXE_ROUTER_TABLE_SIZE))
+#define ARP_ALLOCATE_SIZE ALLOCATE_SIZE ((sizeof (EFI_PXE_BASE_CODE_ARP_ENTRY) * PXE_ARP_CACHE_SIZE))
+#define FILTER_ALLOCATE_SIZE ALLOCATE_SIZE ((sizeof (EFI_IP_ADDRESS) * PXE_IP_FILTER_SIZE))
+#define PXE_ARP_CACHE_SIZE 8
+#define PXE_ROUTER_TABLE_SIZE 8
+#define PXE_IP_FILTER_SIZE 8
+#define ICMP_ALLOCATE_SIZE ALLOCATE_SIZE (sizeof (EFI_PXE_BASE_CODE_ICMP_ERROR))
+#define TFTP_ERR_ALLOCATE_SIZE ALLOCATE_SIZE (sizeof (EFI_PXE_BASE_CODE_TFTP_ERROR))
+
+//
+// DHCP discover/request packets are sent to this UDP port. ProxyDHCP
+// servers listen on this port for DHCP discover packets that have a
+// class identifier (option 60) with 'PXEClient' in the first 9 bytes.
+// Bootservers also listen on this port for PXE broadcast discover
+// requests from PXE clients.
+//
+#define DHCP_SERVER_PORT 67
+
+//
+// When DHCP, proxyDHCP and Bootservers respond to DHCP and PXE broadcast
+// discover requests by broadcasting the reply packet, the packet is
+// broadcast to this port.
+//
+#define DHCP_CLIENT_PORT 68
+
+//
+// TFTP servers listen for TFTP open requests on this port.
+//
+#define TFTP_OPEN_PORT 69
+
+//
+// proxyDHCP and Bootservers listen on this port for a PXE unicast and/or
+// multicast discover requests from PXE clients. A PXE discover request
+// looks like a DHCP discover or DHCP request packet.
+//
+#define PXE_DISCOVERY_PORT 4011
+
+//
+// This port is used by the PXE client/server protocol tests.
+//
+#define PXE_PORT_PXETEST_PORT 0x8080
+
+//
+// Definitions for Ethertype protocol numbers and interface types
+// Per RFC 1700,
+//
+#define PXE_PROTOCOL_ETHERNET_IP 0x0800
+#define PXE_PROTOCOL_ETHERNET_ARP 0x0806
+#define PXE_PROTOCOL_ETHERNET_RARP 0x8035
+
+#define PXE_IFTYPE_ETHERNET 0x01
+#define PXE_IFTYPE_TOKENRING 0x04
+#define PXE_IFTYPE_FIBRE_CHANNEL 0x12
+
+//
+// Definitions for internet protocol version 4 header
+// Per RFC 791, September 1981.
+//
+#define IPVER4 4
+
+#pragma pack(1) // make network structures packed byte alignment
+typedef union {
+ UINT8 B[4];
+ UINT32 L;
+} IPV4_ADDR;
+
+#define IPV4_HEADER_LENGTH(IpHeaderPtr) (((IpHeaderPtr)->VersionIhl & 0xf) << 2)
+
+#define SET_IPV4_VER_HDL(IpHeaderPtr, IpHeaderLen) { \
+ (IpHeaderPtr)->VersionIhl = (UINT8) ((IPVER4 << 4) | ((IpHeaderLen) >> 2)); \
+ }
+
+typedef struct {
+ UINT8 VersionIhl;
+ UINT8 TypeOfService;
+ UINT16 TotalLength;
+ UINT16 Id;
+ UINT16 FragmentFields;
+ UINT8 TimeToLive;
+ UINT8 Protocol;
+ UINT16 HeaderChecksum;
+ IPV4_ADDR SrcAddr;
+ IPV4_ADDR DestAddr;
+ //
+ // options are not implemented
+ //
+} IPV4_HEADER;
+
+#define IP_FRAG_RSVD 0x8000 // reserved bit - must be zero
+#define IP_NO_FRAG 0x4000 // do not fragment bit
+#define IP_MORE_FRAG 0x2000 // not last fragment
+#define IP_FRAG_OFF_MSK 0x1fff // fragment offset in 8 byte chunks
+#define DEFAULT_RFC_TTL 64
+
+#define PROT_ICMP 1
+#define PROT_IGMP 2
+#define PROT_TCP 6
+#define PROT_UDP 17
+
+/*
+ * Definitions for internet control message protocol version 4 message
+ * structure. Per RFC 792, September 1981.
+ */
+
+//
+// icmp header for all icmp messages
+//
+typedef struct {
+ UINT8 Type; // message type
+ UINT8 Code; // type specific - 0 for types we implement
+ UINT16 Checksum; // ones complement of ones complement sum of 16 bit words of message
+} ICMPV4_HEADER;
+
+#define ICMP_DEST_UNREACHABLE 3
+#define ICMP_SOURCE_QUENCH 4
+#define ICMP_REDIRECT 5
+#define ICMP_ECHO 8
+#define ICMP_ECHO_REPLY 0
+#define ICMP_ROUTER_ADV 9
+#define ICMP_ROUTER_SOLICIT 10
+#define ICMP_TIME_EXCEEDED 11
+#define ICMP_PARAMETER_PROBLEM 12
+#define ICMP_TIMESTAMP 13
+#define ICMP_TIMESTAMP_REPLY 14
+#define ICMP_INFO_REQ 15
+#define ICMP_INFO_REQ_REPLY 16
+#define ICMP_SUBNET_MASK_REQ 17
+#define ICMP_SUBNET_MASK_REPLY 18
+//
+// other ICMP message types ignored in this implementation
+//
+// icmp general messages
+//
+typedef struct {
+ ICMPV4_HEADER Header;
+ //
+ // generally unused except byte [0] for
+ // parameter problem message
+ //
+ UINT8 GenerallyUnused[4];
+ //
+ // original message ip header of plus 64
+ // bits of data
+ //
+ IPV4_HEADER IpHeader;
+} ICMPV4_GENERAL_MESSAGE;
+
+//
+// icmp req/rply message header
+//
+typedef struct {
+ ICMPV4_HEADER Header;
+ UINT16 Id;
+ UINT16 SequenceNumber;
+} ICMPV4_REQUEST_REPLY_HEADER;
+
+//
+// icmp echo message
+//
+typedef struct {
+ ICMPV4_REQUEST_REPLY_HEADER Header;
+ UINT8 EchoData[1]; // variable length data to be echoed
+} ICMPV4_ECHO_MESSAGE;
+
+//
+// icmp timestamp message - times are milliseconds since midnight UT -
+// if non std, set high order bit
+//
+typedef struct {
+ ICMPV4_REQUEST_REPLY_HEADER Header;
+ UINT32 OriginalTime; // originating timestamp
+ UINT32 ReceiveTime; // receiving timestamp
+ UINT32 TransmitTime; // transmitting timestamp
+} ICMPV4_TIMESTAMP_MESSAGE;
+
+//
+// icmp info request structure - fill in source and dest net ip address on reply
+//
+typedef struct {
+ ICMPV4_REQUEST_REPLY_HEADER Header;
+} ICMPV4_INFO_MESSAGE;
+
+//
+// Definitions for internet control message protocol version 4 message structure
+// Router discovery
+// Per RFC 1256, September 1991.
+//
+//
+// icmp router advertisement message
+//
+typedef struct {
+ ICMPV4_HEADER Header;
+ UINT8 NumberEntries; // number of address entries
+ UINT8 EntrySize; // number of 32 bit words per address entry
+ UINT16 Lifetime; // seconds to consider info valid
+ UINT32 RouterIp;
+ UINT32 Preferance;
+} ICMPV4_ROUTER_ADVERTISE_MESSAGE;
+
+//
+// icmp router solicitation message
+//
+typedef struct {
+ ICMPV4_HEADER Header;
+ UINT32 Reserved;
+} ICMPV4_ROUTER_SOLICIT_MESSAGE;
+
+#define MAX_SOLICITATION_DELAY 1 // 1 second
+#define SOLICITATION_INTERVAL 3 // 3 seconds
+#define MAX_SOLICITATIONS 3 // 3 transmissions
+#define V1ROUTER_PRESENT_TIMEOUT 400 // 400 second timeout until v2 reports can be sent
+#define UNSOLICITED_REPORT_INTERVAL 10 // 10 seconds between unsolicited reports
+#define BROADCAST_IPv4 0xffffffff
+
+//
+// Definitions for address resolution protocol message structure
+// Per RFC 826, November 1982
+//
+typedef struct {
+ UINT16 HwType; // hardware type - e.g. ethernet (1)
+ UINT16 ProtType; // protocol type - for ethernet, 0x800 for IP
+ UINT8 HwAddLen; // byte length of a hardware address (e.g. 6 for ethernet)
+ UINT8 ProtAddLen; // byte length of a protocol address (e.g. 4 for ipv4)
+ UINT16 OpCode;
+ //
+ // source and dest hw and prot addresses follow - see example below
+ //
+} ARP_HEADER;
+
+#define ETHERNET_ADD_SPC 1
+
+#define ETHER_TYPE_IP 0x800
+
+#define ARP_REQUEST 1
+#define ARP_REPLY 2
+
+//
+// generic ARP packet
+//
+typedef struct {
+ ARP_HEADER ArpHeader;
+ EFI_MAC_ADDRESS SrcHardwareAddr;
+ EFI_IP_ADDRESS SrcProtocolAddr;
+ EFI_MAC_ADDRESS DestHardwareAddr;
+ EFI_IP_ADDRESS DestProtocolAddr;
+} ARP_PACKET;
+
+#define ENET_HWADDLEN 6
+#define IPV4_PROTADDLEN 4
+
+//
+// Definitions for user datagram protocol version 4 pseudo header & header
+// Per RFC 768, 28 August 1980
+//
+typedef struct {
+ IPV4_ADDR SrcAddr; // source ip address
+ IPV4_ADDR DestAddr; // dest ip address
+ UINT8 Zero; // 0
+ UINT8 Protocol; // protocol
+ UINT16 TotalLength; // UDP length - sizeof udpv4hdr + data length
+} UDPV4_PSEUDO_HEADER;
+
+typedef struct {
+ UINT16 SrcPort; // source port identifier
+ UINT16 DestPort; // destination port identifier
+ UINT16 TotalLength; // total length header plus data
+ //
+ // ones complement of ones complement sum of 16 bit
+ // words of pseudo header, UDP header, and data
+ // zero checksum is transmitted as -0 (ones comp)
+ // zero transmitted means checksum not computed
+ // data follows
+ //
+ UINT16 Checksum;
+} UDPV4_HEADER;
+
+typedef struct {
+ UDPV4_PSEUDO_HEADER Udpv4PseudoHeader;
+ UDPV4_HEADER Udpv4Header;
+} UDPV4_HEADERS;
+
+//
+// Definitions for transmission control protocol header
+// Per RFC 793, September, 1981
+//
+typedef struct {
+ IPV4_ADDR SrcAddr; // source ip address
+ IPV4_ADDR DestAddr; // dest ip address
+ UINT8 Zero; // 0
+ UINT8 Protocol; // protocol
+ UINT16 TotalLength; // TCP length - TCP header length + data length
+} TCPV4_PSEUDO_HEADER;
+
+typedef struct {
+ UINT16 SrcPort; // source port identifier
+ UINT16 DestPort; // destination port identifier
+ UINT32 SeqNumber; // Sequence number
+ UINT32 AckNumber; // Acknowledgement Number
+ //
+ // Nibble of HLEN (length of header in 32-bit multiples)
+ // 6bits of RESERVED
+ // Nibble of Code Bits
+ //
+ UINT16 HlenResCode;
+ UINT16 Window; // Software buffer size (sliding window size) in network-standard byte order
+ //
+ // ones complement of ones complement sum of 16 bit words of
+ // pseudo header, TCP header, and data
+ // zero checksum is transmitted as -0 (ones comp)
+ // zero transmitted means checksum not computed
+ //
+ UINT16 Checksum;
+ UINT16 UrgentPointer; // pointer to urgent data (allows sender to specify urgent data)
+} TCPV4_HEADER;
+
+typedef struct {
+ TCPV4_PSEUDO_HEADER Tcpv4PseudoHeader;
+ TCPV4_HEADER Tcpv4Header;
+} TCPV4_HEADERS;
+
+typedef struct {
+ UINT8 Kind; // one of the following:
+ UINT8 Length; // total option length including Kind and Lth
+ UINT8 Data[1]; // length = Lth - 2
+} TCPV4_OPTION;
+
+#define TCP_OP_END 0 // only used to pad to end of TCP header
+#define TCP_NOP 1 // optional - may be used to pad between options to get alignment
+#define TCP_MAX_SEG 2 // maximum receive segment size - only send at initial connection request
+#define MAX_MEDIA_HDR_SIZE 64
+#define MIN_ENET_DATA_SIZE 64
+#define MAX_ENET_DATA_SIZE 1500 // temp def - make a network based var
+#define MAX_IPV4_PKT_SIZE 65535 // maximum IP packet size
+#define MAX_IPV4_DATA_SIZE (MAX_IPV4_PKT_SIZE - sizeof (IPV4_HEADER))
+#define MAX_IPV4_FRAME_DATA_SIZE (MAX_FRAME_DATA_SIZE - sizeof (IPV4_HEADER))
+#define REAS_IPV4_PKT_SIZE 576 // minimum IP packet size all IP host can handle
+#define REAS_IPV4_DATA_SIZE (REAS_IPV4_PKT_SIZE - sizeof (IPV4_HEADER))
+
+//
+//
+//
+typedef union {
+ UINT8 Data[MAX_ENET_DATA_SIZE];
+ ICMPV4_HEADER IcmpHeader;
+ IGMPV2_MESSAGE IgmpMessage;
+ struct {
+ UDPV4_HEADER UdpHeader;
+ UINT8 Data[1];
+ } Udp;
+ struct {
+ TCPV4_HEADER TcpHeader;
+ UINT8 Data[1];
+ } Tcp;
+} PROTOCOL_UNION;
+
+//
+// out buffer structure
+//
+typedef struct {
+ UINT8 MediaHeader[MAX_MEDIA_HDR_SIZE];
+ IPV4_HEADER IpHeader;
+ //
+ // following union placement only valid if no option IP header
+ //
+ PROTOCOL_UNION u;
+} IPV4_BUFFER;
+
+typedef struct {
+ IPV4_HEADER IpHeader;
+ //
+ // following union placement only valid if no option IP header
+ //
+ PROTOCOL_UNION u;
+} IPV4_STRUCT;
+
+#pragma pack() // reset to default
+
+ ////////////////////////////////////////////////////////////
+//
+// BC IP Filter Routine
+//
+EFI_STATUS
+IpFilter (
+ PXE_BASECODE_DEVICE *Private,
+ IN EFI_PXE_BASE_CODE_IP_FILTER *Filter
+ )
+;
+
+//
+// //////////////////////////////////////////////////////////////////////
+//
+// Udp Write Routine - called by base code - e.g. TFTP - already locked
+//
+EFI_STATUS
+UdpWrite (
+ IN PXE_BASECODE_DEVICE *Private,
+ IN UINT16 OpFlags,
+ IN EFI_IP_ADDRESS *DestIpPtr,
+ IN EFI_PXE_BASE_CODE_UDP_PORT *DestPortptr,
+ IN EFI_IP_ADDRESS *GatewayIpPtr, OPTIONAL
+ IN EFI_IP_ADDRESS *SrcIpPtr, OPTIONAL
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPortPtr, OPTIONAL
+ IN UINTN *HeaderSizePtr, OPTIONAL
+ IN VOID *HeaderPtr, OPTIONAL
+ IN UINTN *BufferSizePtr,
+ IN VOID *BufferPtr
+ )
+;
+
+//
+// /////////////////////////////////////////////////////////////////////
+//
+// Udp Read Routine - called by base code - e.g. TFTP - already locked
+//
+EFI_STATUS
+UdpRead (
+ IN PXE_BASECODE_DEVICE *Private,
+ IN UINT16 OpFlags,
+ IN OUT EFI_IP_ADDRESS *DestIpPtr, OPTIONAL
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *DestPorPtrt, OPTIONAL
+ IN OUT EFI_IP_ADDRESS *SrcIpPtr, OPTIONAL
+ IN OUT EFI_PXE_BASE_CODE_UDP_PORT *SrcPortPtr, OPTIONAL
+ IN UINTN *HeaderSizePtr, OPTIONAL
+ IN VOID *HeaderPtr, OPTIONAL
+ IN OUT UINTN *BufferSizePtr,
+ IN VOID *BufferPtr,
+ IN EFI_EVENT TimeoutEvent
+ )
+;
+
+VOID
+IgmpLeaveGroup (
+ PXE_BASECODE_DEVICE *Private,
+ EFI_IP_ADDRESS *
+ )
+;
+
+VOID
+IgmpJoinGroup (
+ PXE_BASECODE_DEVICE *Private,
+ EFI_IP_ADDRESS *
+ )
+;
+
+//
+// convert number to zero filled ascii value of length lth
+//
+VOID
+CvtNum (
+ UINTN Number,
+ UINT8 *BufferPtr,
+ INTN BufferLen
+ )
+;
+
+//
+// convert number to ascii string at ptr
+//
+VOID
+UtoA10 (
+ UINTN Number,
+ UINT8 *BufferPtr
+ )
+;
+
+//
+// convert ascii numeric string to UINTN
+//
+UINTN
+AtoU (
+ UINT8 *BufferPtr
+ )
+;
+
+UINT64
+AtoU64 (
+ UINT8 *BufferPtr
+ )
+;
+
+//
+// calculate the internet checksum (RFC 1071)
+// return 16 bit ones complement of ones complement sum of 16 bit words
+//
+UINT16
+IpChecksum (
+ UINT16 *MessagePtr,
+ UINTN ByteLength
+ )
+;
+
+//
+// do checksum on non contiguous header and data
+//
+UINT16
+IpChecksum2 (
+ UINT16 *Header,
+ UINTN HeaderLength,
+ UINT16 *Message,
+ UINTN MessageLength
+ )
+;
+
+//
+// update checksum when only a single word changes
+//
+UINT16
+UpdateChecksum (
+ UINT16 OldChecksum,
+ UINT16 OldWord,
+ UINT16 NewWord
+ )
+;
+
+VOID
+SeedRandom (
+ IN PXE_BASECODE_DEVICE *Private,
+ IN UINT16 InitialSeed
+ )
+;
+
+UINT16
+Random (
+ IN PXE_BASECODE_DEVICE *Private
+ )
+;
+
+EFI_STATUS
+SendPacket (
+ PXE_BASECODE_DEVICE *Private,
+ VOID *HeaderPtr,
+ VOID *PacketPtr,
+ INTN PacketLength,
+ VOID *HardwareAddress,
+ UINT16 MediaProtocol,
+ IN EFI_PXE_BASE_CODE_FUNCTION Function
+ )
+;
+
+VOID
+HandleArpReceive (
+ PXE_BASECODE_DEVICE *Private,
+ ARP_PACKET *ArpPacketPtr,
+ VOID *HeaderPtr
+ )
+;
+
+VOID
+HandleIgmp (
+ PXE_BASECODE_DEVICE *Private,
+ IGMPV2_MESSAGE *IgmpMessageptr,
+ UINTN IgmpMessageLen
+ )
+;
+
+VOID
+IgmpCheckTimers (
+ PXE_BASECODE_DEVICE *Private
+ )
+; // poll when doing a receive
+// return hw add of IP and TRUE if available, otherwise FALSE
+//
+BOOLEAN
+GetHwAddr (
+ IN PXE_BASECODE_DEVICE *Private,
+ EFI_IP_ADDRESS *ProtocolAddressPtr,
+ EFI_MAC_ADDRESS *HardwareAddressPtr
+ )
+;
+
+EFI_STATUS
+DoArp (
+ IN PXE_BASECODE_DEVICE *Private,
+ IN EFI_IP_ADDRESS *ProtocolAddressPtr,
+ OUT EFI_MAC_ADDRESS *HardwareAddressptr
+ )
+;
+
+BOOLEAN
+OnSameSubnet (
+ UINTN IpAddressLen,
+ EFI_IP_ADDRESS *Ip1,
+ EFI_IP_ADDRESS *Ip2,
+ EFI_IP_ADDRESS *SubnetMask
+ )
+;
+
+VOID
+IpAddRouter (
+ PXE_BASECODE_DEVICE *Private,
+ EFI_IP_ADDRESS *RouterIp
+ )
+;
+
+#define Ip4AddRouter(Private, Ipv4Ptr) IpAddRouter (Private, (EFI_IP_ADDRESS *) Ipv4Ptr)
+
+//
+// routine to send ipv4 packet
+// ipv4 + upper protocol header for length TotHdrLth in xmtbuf, ipv4 header length IpHdrLth
+// routine fills in ipv4hdr Ver_Hdl, TotLth, and Checksum, moves in Data, and gets dest MAC address
+//
+EFI_STATUS
+Ipv4Xmt (
+ PXE_BASECODE_DEVICE *Private,
+ UINT32 GatewayIP,
+ UINTN IpHeaderLen,
+ UINTN TotalHeaderLen,
+ VOID *Data,
+ UINTN DataLen,
+ EFI_PXE_BASE_CODE_FUNCTION Function
+ )
+;
+
+//
+// send ipv4 packet with ipv4 option
+//
+EFI_STATUS
+Ipv4SendWOp (
+ PXE_BASECODE_DEVICE *Private,
+ UINT32 GatewayIP,
+ UINT8 *MessagePtr,
+ UINTN MessageLth,
+ UINT8 Protocol,
+ UINT8 *Option,
+ UINTN OptionLen,
+ UINT32 DestIp,
+ EFI_PXE_BASE_CODE_FUNCTION Function
+ )
+;
+
+//
+// send MsgLth message at MsgPtr - higher level protocol header already in xmtbuf, length HdrSize
+//
+EFI_STATUS
+Ip4Send (
+ IN PXE_BASECODE_DEVICE *Private, // pointer to instance data
+ IN UINTN MayFragment, //
+ IN UINT8 Protocol, // protocol
+ IN UINT32 SrcIp, // Source IP address
+ IN UINT32 DestIp, // Destination IP address
+ IN UINT32 GatewayIp, // used if not NULL and needed
+ IN UINTN HeaderSize, // protocol header byte length
+ IN UINT8 *MsgPtr, // pointer to data
+ IN UINTN MsgLength
+ )
+; // data byte length
+// receive up to MsgLth message into MsgPtr for protocol Prot
+// return message length, src/dest ips if select any, and pointer to protocol header
+//
+EFI_STATUS
+IpReceive (
+ IN PXE_BASECODE_DEVICE *Private, // pointer to instance data
+ UINT16 OpFlags, // Flags to determine if filtering on IP addresses
+ EFI_IP_ADDRESS *SrcIpPtr, // if filtering, O if accept any
+ EFI_IP_ADDRESS *DstIpPtr, // if filtering, O if accept any
+ UINT8 Protocol, // protocol
+ VOID *HeaderPtr, // address of where to put protocol header
+ UINTN HeaderSize, // protocol header byte length
+ UINT8 *MsgPtr, // pointer to data buffer
+ UINTN *MsgLenPtr, // pointer to data buffer length/ O - returned data length
+ IN EFI_EVENT TimeoutEvent
+ )
+;
+
+#if 0
+VOID
+WaitForTxComplete (
+ IN PXE_BASECODE_DEVICE *Private
+ )
+;
+#endif
+//
+// routine to cycle waiting for a receive or timeout
+//
+EFI_STATUS
+WaitForReceive (
+ IN PXE_BASECODE_DEVICE *Private,
+ IN EFI_PXE_BASE_CODE_FUNCTION Function,
+ IN EFI_EVENT TimeoutEvent,
+ IN OUT UINTN *HeaderSizePtr,
+ IN OUT UINTN *BufferSizePtr,
+ IN OUT UINT16 *ProtocolPtr
+ )
+;
+
+#endif /* _IP_H_ */
+
+/* EOF - ip.h */
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