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audk/MdeModulePkg/Universal/Network/PxeBcDxe/Ip.h

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/** @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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