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audk/MdePkg/Include/Protocol/Dhcp4.h

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/** @file
EFI_DHCP4_PROTOCOL as defined in UEFI 2.0.
EFI_DHCP4_SERVICE_BINDING_PROTOCOL as defined in UEFI 2.0.
These protocols are used to collect configuration information for the EFI IPv4 Protocol
drivers and to provide DHCPv4 server and PXE boot server discovery services.
Copyright (c) 2006 - 2008, 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 __EFI_DHCP4_PROTOCOL_H__
#define __EFI_DHCP4_PROTOCOL_H__
#define EFI_DHCP4_PROTOCOL_GUID \
{ \
0x8a219718, 0x4ef5, 0x4761, {0x91, 0xc8, 0xc0, 0xf0, 0x4b, 0xda, 0x9e, 0x56 } \
}
#define EFI_DHCP4_SERVICE_BINDING_PROTOCOL_GUID \
{ \
0x9d9a39d8, 0xbd42, 0x4a73, {0xa4, 0xd5, 0x8e, 0xe9, 0x4b, 0xe1, 0x13, 0x80 } \
}
typedef struct _EFI_DHCP4_PROTOCOL EFI_DHCP4_PROTOCOL;
#pragma pack(1)
typedef struct {
UINT8 OpCode;
UINT8 Length;
UINT8 Data[1];
} EFI_DHCP4_PACKET_OPTION;
#pragma pack()
#pragma pack(1)
typedef struct {
UINT8 OpCode;
UINT8 HwType;
UINT8 HwAddrLen;
UINT8 Hops;
UINT32 Xid;
UINT16 Seconds;
UINT16 Reserved;
EFI_IPv4_ADDRESS ClientAddr; ///< Client IP address from client
EFI_IPv4_ADDRESS YourAddr; ///< Client IP address from server
EFI_IPv4_ADDRESS ServerAddr; ///< IP address of next server in bootstrap
EFI_IPv4_ADDRESS GatewayAddr; ///< Relay agent IP address
UINT8 ClientHwAddr[16]; ///< Client hardware address
CHAR8 ServerName[64];
CHAR8 BootFileName[128];
}EFI_DHCP4_HEADER;
#pragma pack()
#pragma pack(1)
typedef struct {
UINT32 Size;
UINT32 Length;
struct {
EFI_DHCP4_HEADER Header;
UINT32 Magik;
UINT8 Option[1];
} Dhcp4;
} EFI_DHCP4_PACKET;
#pragma pack()
typedef enum {
Dhcp4Stopped = 0x0,
Dhcp4Init = 0x1,
Dhcp4Selecting = 0x2,
Dhcp4Requesting = 0x3,
Dhcp4Bound = 0x4,
Dhcp4Renewing = 0x5,
Dhcp4Rebinding = 0x6,
Dhcp4InitReboot = 0x7,
Dhcp4Rebooting = 0x8
} EFI_DHCP4_STATE;
typedef enum{
Dhcp4SendDiscover = 0x01,
Dhcp4RcvdOffer = 0x02,
Dhcp4SelectOffer = 0x03,
Dhcp4SendRequest = 0x04,
Dhcp4RcvdAck = 0x05,
Dhcp4RcvdNak = 0x06,
Dhcp4SendDecline = 0x07,
Dhcp4BoundCompleted = 0x08,
Dhcp4EnterRenewing = 0x09,
Dhcp4EnterRebinding = 0x0a,
Dhcp4AddressLost = 0x0b,
Dhcp4Fail = 0x0c
} EFI_DHCP4_EVENT;
/**
Callback routine
@param This Pointer to the EFI DHCPv4 Protocol instance that is used to
configure this callback function.
@param Context Pointer to the context that is initialized by
EFI_DHCP4_PROTOCOL.Configure().
@param CurrentState The current operational state of the EFI DHCPv4 Protocol
driver.
@param Dhcp4Event The event that occurs in the current state, which usually means a
state transition.
@param Packet The DHCP packet that is going to be sent or already received.
@param NewPacket The packet that is used to replace the above Packet.
@retval EFI_SUCCESS Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.
@retval EFI_NOT_READY Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol
driver will continue to wait for more DHCPOFFER packets until the retry
timeout expires.
@retval EFI_ABORTED Tells the EFI DHCPv4 Protocol driver to abort the current process and
return to the Dhcp4Init or Dhcp4InitReboot state.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_CALLBACK)(
IN EFI_DHCP4_PROTOCOL *This,
IN VOID *Context,
IN EFI_DHCP4_STATE CurrentState,
IN EFI_DHCP4_EVENT Dhcp4Event,
IN EFI_DHCP4_PACKET *Packet OPTIONAL,
OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL
);
typedef struct {
UINT32 DiscoverTryCount;
UINT32 *DiscoverTimeout;
UINT32 RequestTryCount;
UINT32 *RequestTimeout;
EFI_IPv4_ADDRESS ClientAddress;
EFI_DHCP4_CALLBACK Dhcp4Callback;
void *CallbackContext;
UINT32 OptionCount;
EFI_DHCP4_PACKET_OPTION **OptionList;
} EFI_DHCP4_CONFIG_DATA;
typedef struct {
EFI_DHCP4_STATE State;
EFI_DHCP4_CONFIG_DATA ConfigData;
EFI_IPv4_ADDRESS ClientAddress;
EFI_MAC_ADDRESS ClientMacAddress;
EFI_IPv4_ADDRESS ServerAddress;
EFI_IPv4_ADDRESS RouterAddress;
EFI_IPv4_ADDRESS SubnetMask;
UINT32 LeaseTime;
EFI_DHCP4_PACKET *ReplyPacket;
} EFI_DHCP4_MODE_DATA;
typedef struct {
EFI_IPv4_ADDRESS ListenAddress;
EFI_IPv4_ADDRESS SubnetMask;
UINT16 ListenPort;
} EFI_DHCP4_LISTEN_POINT;
typedef struct {
EFI_STATUS Status;
EFI_EVENT CompletionEvent;
EFI_IPv4_ADDRESS RemoteAddress;
UINT16 RemotePort;
EFI_IPv4_ADDRESS GatewayAddress;
UINT32 ListenPointCount;
EFI_DHCP4_LISTEN_POINT *ListenPoints;
UINT32 TimeoutValue;
EFI_DHCP4_PACKET *Packet;
UINT32 ResponseCount;
EFI_DHCP4_PACKET *ResponseList;
} EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN;
/**
Returns the current operating mode and cached data packet for the EFI DHCPv4 Protocol driver.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param Dhcp4ModeData Pointer to storage for the EFI_DHCP4_MODE_DATA structure.
@retval EFI_SUCCESS The mode data was returned.
@retval EFI_INVALID_PARAMETER This is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_GET_MODE_DATA)(
IN EFI_DHCP4_PROTOCOL *This,
OUT EFI_DHCP4_MODE_DATA *Dhcp4ModeData
);
/**
Initializes, changes, or resets the operational settings for the EFI DHCPv4 Protocol driver.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param Dhcp4CfgData Pointer to the EFI_DHCP4_CONFIG_DATA.
@retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the Dhcp4Init or
Dhcp4InitReboot state, if the original state of this driver
was Dhcp4Stopped and the value of Dhcp4CfgData was
not NULL. Otherwise, the state was left unchanged.
@retval EFI_ACCESS_DENIED This instance of the EFI DHCPv4 Protocol driver was not in the
Dhcp4Stopped, Dhcp4Init, Dhcp4InitReboot, or Dhcp4Bound state;
Or onother instance of this EFI DHCPv4 Protocol driver is already
in a valid configured state.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_CONFIGURE)(
IN EFI_DHCP4_PROTOCOL *This,
IN EFI_DHCP4_CONFIG_DATA *Dhcp4CfgData OPTIONAL
);
/**
Starts the DHCP configuration process.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param CompletionEvent If not NULL, indicates the event that will be signaled when the
EFI DHCPv4 Protocol driver is transferred into the
Dhcp4Bound state or when the DHCP process is aborted.
EFI_DHCP4_PROTOCOL.GetModeData() can be called to
check the completion status. If NULL,
EFI_DHCP4_PROTOCOL.Start() will wait until the driver
is transferred into the Dhcp4Bound state or the process fails.
@retval EFI_SUCCESS The DHCP configuration process has started, or it has completed
when CompletionEvent is NULL.
@retval EFI_NOT_STARTED The EFI DHCPv4 Protocol driver is in the Dhcp4Stopped
state. EFI_DHCP4_PROTOCOL. Configure() needs to be called.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_TIMEOUT The DHCP configuration process failed because no response was
received from the server within the specified timeout value.
@retval EFI_ABORTED The user aborted the DHCP process.
@retval EFI_ALREADY_STARTED Some other EFI DHCPv4 Protocol instance already started the
DHCP process.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_START)(
IN EFI_DHCP4_PROTOCOL *This,
IN EFI_EVENT CompletionEvent OPTIONAL
);
/**
Extends the lease time by sending a request packet.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param RebindRequest If TRUE, this function broadcasts the request packets and enters
the Dhcp4Rebinding state. Otherwise, it sends a unicast
request packet and enters the Dhcp4Renewing state.
@param CompletionEvent If not NULL, this event is signaled when the renew/rebind phase
completes or some error occurs.
EFI_DHCP4_PROTOCOL.GetModeData() can be called to
check the completion status. If NULL,
EFI_DHCP4_PROTOCOL.RenewRebind() will busy-wait
until the DHCP process finishes.
@retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the
Dhcp4Renewing state or is back to the Dhcp4Bound state.
@retval EFI_NOT_STARTED The EFI DHCPv4 Protocol driver is in the Dhcp4Stopped
state. EFI_DHCP4_PROTOCOL.Configure() needs to
be called.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_TIMEOUT There was no response from the server when the try count was
exceeded.
@retval EFI_ACCESS_DENIED The driver is not in the Dhcp4Bound state.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_RENEW_REBIND)(
IN EFI_DHCP4_PROTOCOL *This,
IN BOOLEAN RebindRequest,
IN EFI_EVENT CompletionEvent OPTIONAL
);
/**
Releases the current address configuration.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the Dhcp4Init phase.
@retval EFI_INVALID_PARAMETER This is NULL.
@retval EFI_ACCESS_DENIED The EFI DHCPv4 Protocol driver is not Dhcp4InitReboot state.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_RELEASE)(
IN EFI_DHCP4_PROTOCOL *This
);
/**
Stops the current address configuration.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@retval EFI_SUCCESS The EFI DHCPv4 Protocol driver is now in the Dhcp4Stopped phase.
@retval EFI_INVALID_PARAMETER This is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_STOP)(
IN EFI_DHCP4_PROTOCOL *This
);
/**
Builds a DHCP packet, given the options to be appended or deleted or replaced.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param SeedPacket Initial packet to be used as a base for building new packet.
@param DeleteCount Number of opcodes in the DeleteList.
@param DeleteList List of opcodes to be deleted from the seed packet.
Ignored if DeleteCount is zero.
@param AppendCount Number of entries in the OptionList.
@param AppendList Pointer to a DHCP option list to be appended to SeedPacket.
If SeedPacket also contains options in this list, they are
replaced by new options (except pad option). Ignored if
AppendCount is zero. Type EFI_DHCP4_PACKET_OPTION
@param NewPacket Pointer to storage for the pointer to the new allocated packet.
Use the EFI Boot Service FreePool() on the resulting pointer
when done with the packet.
@retval EFI_SUCCESS The new packet was built.
@retval EFI_OUT_OF_RESOURCES Storage for the new packet could not be allocated.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_BUILD)(
IN EFI_DHCP4_PROTOCOL *This,
IN EFI_DHCP4_PACKET *SeedPacket,
IN UINT32 DeleteCount,
IN UINT8 *DeleteList OPTIONAL,
IN UINT32 AppendCount,
IN EFI_DHCP4_PACKET_OPTION *AppendList[] OPTIONAL,
OUT EFI_DHCP4_PACKET **NewPacket
);
/**
Transmits a DHCP formatted packet and optionally waits for responses.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param Token Pointer to the EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN structure.
@retval EFI_SUCCESS The packet was successfully queued for transmission.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_NOT_READY The previous call to this function has not finished yet. Try to call
this function after collection process completes.
@retval EFI_NO_MAPPING The default station address is not available yet.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval Others Some other unexpected error occurred.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_TRANSMIT_RECEIVE)(
IN EFI_DHCP4_PROTOCOL *This,
IN EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN *Token
);
/**
Parses the packed DHCP option data.
@param This Pointer to the EFI_DHCP4_PROTOCOL instance.
@param Packet Pointer to packet to be parsed.
@param OptionCount On input, the number of entries in the PacketOptionList.
On output, the number of entries that were written into the
PacketOptionList.
@param PacketOptionList List of packet option entries to be filled in. End option or pad
options are not included.
@retval EFI_SUCCESS The packet was successfully parsed.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_BUFFER_TOO_SMALL One or more of the following conditions is TRUE:
1) *OptionCount is smaller than the number of options that
were found in the Packet.
2) PacketOptionList is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DHCP4_PARSE)(
IN EFI_DHCP4_PROTOCOL *This,
IN EFI_DHCP4_PACKET *Packet,
IN OUT UINT32 *OptionCount,
OUT EFI_DHCP4_PACKET_OPTION *PacketOptionList[] OPTIONAL
);
///
/// This protocol is used to collect configuration information for the EFI IPv4 Protocol drivers
/// and to provide DHCPv4 server and PXE boot server discovery services.
///
struct _EFI_DHCP4_PROTOCOL {
EFI_DHCP4_GET_MODE_DATA GetModeData;
EFI_DHCP4_CONFIGURE Configure;
EFI_DHCP4_START Start;
EFI_DHCP4_RENEW_REBIND RenewRebind;
EFI_DHCP4_RELEASE Release;
EFI_DHCP4_STOP Stop;
EFI_DHCP4_BUILD Build;
EFI_DHCP4_TRANSMIT_RECEIVE TransmitReceive;
EFI_DHCP4_PARSE Parse;
};
extern EFI_GUID gEfiDhcp4ProtocolGuid;
extern EFI_GUID gEfiDhcp4ServiceBindingProtocolGuid;
#endif
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