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480 lines
21 KiB
C
480 lines
21 KiB
C
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/** @file
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Dhcp6 internal data structure and definition declaration.
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Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EFI_DHCP6_IMPL_H__
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#define __EFI_DHCP6_IMPL_H__
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#include <Uefi.h>
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#include <IndustryStandard/Dhcp.h>
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#include <Protocol/Dhcp6.h>
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#include <Protocol/Udp6.h>
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#include <Protocol/Ip6Config.h>
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#include <Protocol/ServiceBinding.h>
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#include <Protocol/DriverBinding.h>
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#include <Library/UdpIoLib.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseLib.h>
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#include <Library/NetLib.h>
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#include <Library/PrintLib.h>
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#include <Guid/ZeroGuid.h>
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typedef struct _DHCP6_IA_CB DHCP6_IA_CB;
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typedef struct _DHCP6_INF_CB DHCP6_INF_CB;
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typedef struct _DHCP6_TX_CB DHCP6_TX_CB;
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typedef struct _DHCP6_SERVICE DHCP6_SERVICE;
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typedef struct _DHCP6_INSTANCE DHCP6_INSTANCE;
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#include "Dhcp6Utility.h"
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#include "Dhcp6Io.h"
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#include "Dhcp6Driver.h"
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#define DHCP6_SERVICE_SIGNATURE SIGNATURE_32 ('D', 'H', '6', 'S')
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#define DHCP6_INSTANCE_SIGNATURE SIGNATURE_32 ('D', 'H', '6', 'I')
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#define DHCP6_PACKET_ALL 0
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#define DHCP6_PACKET_STATEFUL 1
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#define DHCP6_PACKET_STATELESS 2
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#define DHCP6_BASE_PACKET_SIZE 1024
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#define DHCP6_PORT_CLIENT 546
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#define DHCP6_PORT_SERVER 547
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#define DHCP_CHECK_MEDIA_WAITING_TIME EFI_TIMER_PERIOD_SECONDS(20)
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#define DHCP6_INSTANCE_FROM_THIS(Instance) CR ((Instance), DHCP6_INSTANCE, Dhcp6, DHCP6_INSTANCE_SIGNATURE)
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#define DHCP6_SERVICE_FROM_THIS(Service) CR ((Service), DHCP6_SERVICE, ServiceBinding, DHCP6_SERVICE_SIGNATURE)
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extern EFI_IPv6_ADDRESS mAllDhcpRelayAndServersAddress;
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extern EFI_DHCP6_PROTOCOL gDhcp6ProtocolTemplate;
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//
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// Control block for each IA.
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//
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struct _DHCP6_IA_CB {
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EFI_DHCP6_IA *Ia;
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UINT32 T1;
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UINT32 T2;
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UINT32 AllExpireTime;
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UINT32 LeaseTime;
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};
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//
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// Control block for each transmitted message.
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//
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struct _DHCP6_TX_CB {
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LIST_ENTRY Link;
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UINT32 Xid;
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EFI_DHCP6_PACKET *TxPacket;
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EFI_DHCP6_RETRANSMISSION RetryCtl;
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UINT32 RetryCnt;
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UINT32 RetryExp;
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UINT32 RetryLos;
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UINT32 TickTime;
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UINT16 *Elapsed;
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BOOLEAN SolicitRetry;
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};
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//
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// Control block for each info-request message.
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//
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struct _DHCP6_INF_CB {
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LIST_ENTRY Link;
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UINT32 Xid;
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EFI_DHCP6_INFO_CALLBACK ReplyCallback;
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VOID *CallbackContext;
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EFI_EVENT TimeoutEvent;
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};
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//
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// Control block for Dhcp6 instance, it's per configuration data.
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//
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struct _DHCP6_INSTANCE {
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UINT32 Signature;
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EFI_HANDLE Handle;
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DHCP6_SERVICE *Service;
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LIST_ENTRY Link;
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EFI_DHCP6_PROTOCOL Dhcp6;
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EFI_EVENT Timer;
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EFI_DHCP6_CONFIG_DATA *Config;
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EFI_DHCP6_IA *CacheIa;
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DHCP6_IA_CB IaCb;
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LIST_ENTRY TxList;
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LIST_ENTRY InfList;
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EFI_DHCP6_PACKET *AdSelect;
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UINT8 AdPref;
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EFI_IPv6_ADDRESS *Unicast;
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volatile EFI_STATUS UdpSts;
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BOOLEAN InDestroy;
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BOOLEAN MediaPresent;
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//
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// StartTime is used to calculate the 'elapsed-time' option. Refer to RFC3315,
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// the elapsed-time is amount of time since the client began its current DHCP transaction.
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//
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UINT64 StartTime;
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};
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//
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// Control block for Dhcp6 service, it's per Nic handle.
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//
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struct _DHCP6_SERVICE {
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UINT32 Signature;
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EFI_HANDLE Controller;
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EFI_HANDLE Image;
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EFI_SERVICE_BINDING_PROTOCOL ServiceBinding;
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EFI_SIMPLE_NETWORK_PROTOCOL *Snp;
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EFI_IP6_CONFIG_PROTOCOL *Ip6Cfg;
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EFI_DHCP6_DUID *ClientId;
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UDP_IO *UdpIo;
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UINT32 Xid;
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LIST_ENTRY Child;
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UINTN NumOfChild;
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};
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/**
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Starts the DHCPv6 standard S.A.R.R. process.
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The Start() function starts the DHCPv6 standard process. This function can
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be called only when the state of Dhcp6 instance is in the Dhcp6Init state.
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If the DHCP process completes successfully, the state of the Dhcp6 instance
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will be transferred through Dhcp6Selecting and Dhcp6Requesting to the
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Dhcp6Bound state.
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Refer to rfc-3315 for precise state transitions during this process. At the
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time when each event occurs in this process, the callback function that was set
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by EFI_DHCP6_PROTOCOL.Configure() will be called and the user can take this
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opportunity to control the process.
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@param[in] This The pointer to Dhcp6 protocol.
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@retval EFI_SUCCESS The DHCPv6 standard process has started, or it
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completed when CompletionEvent was NULL.
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@retval EFI_ACCESS_DENIED The EFI DHCPv6 Child instance hasn't been configured.
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@retval EFI_INVALID_PARAMETER This is NULL.
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@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
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@retval EFI_TIMEOUT The DHCPv6 configuration process failed because no
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response was received from the server within the
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specified timeout value.
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@retval EFI_ABORTED The user aborted the DHCPv6 process.
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@retval EFI_ALREADY_STARTED Some other Dhcp6 instance already started the DHCPv6
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standard process.
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@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
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**/
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EFI_STATUS
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EFIAPI
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EfiDhcp6Start (
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IN EFI_DHCP6_PROTOCOL *This
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);
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/**
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Stops the DHCPv6 standard S.A.R.R. process.
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The Stop() function is used to stop the DHCPv6 standard process. After this
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function is called successfully, the state of Dhcp6 instance is transferred
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into the Dhcp6Init. EFI_DHCP6_PROTOCOL.Configure() needs to be called
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before DHCPv6 standard process can be started again. This function can be
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called when the Dhcp6 instance is in any state.
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@param[in] This The pointer to the Dhcp6 protocol.
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@retval EFI_SUCCESS The Dhcp6 instance is now in the Dhcp6Init state.
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@retval EFI_INVALID_PARAMETER This is NULL.
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**/
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EFI_STATUS
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EFIAPI
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EfiDhcp6Stop (
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IN EFI_DHCP6_PROTOCOL *This
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);
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/**
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Returns the current operating mode data for the Dhcp6 instance.
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The GetModeData() function returns the current operating mode and
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cached data packet for the Dhcp6 instance.
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@param[in] This The pointer to the Dhcp6 protocol.
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@param[out] Dhcp6ModeData The pointer to the Dhcp6 mode data.
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@param[out] Dhcp6ConfigData The pointer to the Dhcp6 configure data.
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@retval EFI_SUCCESS The mode data was returned.
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@retval EFI_INVALID_PARAMETER This is NULL.
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@retval EFI_ACCESS_DENIED The EFI DHCPv6 Protocol instance has not
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been configured when Dhcp6ConfigData is
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not NULL.
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**/
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EFI_STATUS
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EFIAPI
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EfiDhcp6GetModeData (
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IN EFI_DHCP6_PROTOCOL *This,
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OUT EFI_DHCP6_MODE_DATA *Dhcp6ModeData OPTIONAL,
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OUT EFI_DHCP6_CONFIG_DATA *Dhcp6ConfigData OPTIONAL
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);
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/**
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Initializes, changes, or resets the operational settings for the Dhcp6 instance.
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The Configure() function is used to initialize or clean up the configuration
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data of the Dhcp6 instance:
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- When Dhcp6CfgData is not NULL and Configure() is called successfully, the
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configuration data will be initialized in the Dhcp6 instance and the state
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of the configured IA will be transferred into Dhcp6Init.
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- When Dhcp6CfgData is NULL and Configure() is called successfully, the
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configuration data will be cleaned up and no IA will be associated with
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the Dhcp6 instance.
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To update the configuration data for an Dhcp6 instance, the original data
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must be cleaned up before setting the new configuration data.
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@param[in] This The pointer to the Dhcp6 protocol
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@param[in] Dhcp6CfgData The pointer to the EFI_DHCP6_CONFIG_DATA.
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@retval EFI_SUCCESS The Dhcp6 is configured successfully with the
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Dhcp6Init state, or cleaned up the original
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configuration setting.
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@retval EFI_ACCESS_DENIED The Dhcp6 instance has been already configured
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when Dhcp6CfgData is not NULL.
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The Dhcp6 instance has already started the
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DHCPv6 S.A.R.R when Dhcp6CfgData is NULL.
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@retval EFI_INVALID_PARAMETER Some of the parameter is invalid.
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@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
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@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
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**/
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EFI_STATUS
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EFIAPI
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EfiDhcp6Configure (
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IN EFI_DHCP6_PROTOCOL *This,
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IN EFI_DHCP6_CONFIG_DATA *Dhcp6CfgData OPTIONAL
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);
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/**
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Request configuration information without the assignment of any
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Ia addresses of the client.
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The InfoRequest() function is used to request configuration information
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without the assignment of any IPv6 address of the client. Client sends
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out Information Request packet to obtain the required configuration
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information, and DHCPv6 server responds with Reply packet containing
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the information for the client. The received Reply packet will be passed
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to the user by ReplyCallback function. If user returns EFI_NOT_READY from
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ReplyCallback, the Dhcp6 instance will continue to receive other Reply
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packets unless timeout according to the Retransmission parameter.
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Otherwise, the Information Request exchange process will be finished
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successfully if user returns EFI_SUCCESS from ReplyCallback.
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@param[in] This The pointer to the Dhcp6 protocol.
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@param[in] SendClientId If TRUE, the DHCPv6 protocol instance will build Client
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Identifier option and include it into Information Request
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packet. Otherwise, Client Identifier option will not be included.
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@param[in] OptionRequest The pointer to the buffer of option request options.
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@param[in] OptionCount The option number in the OptionList.
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@param[in] OptionList The list of appended options.
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@param[in] Retransmission The pointer to the retransmission of the message.
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@param[in] TimeoutEvent The event of timeout.
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@param[in] ReplyCallback The callback function when a reply was received.
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@param[in] CallbackContext The pointer to the parameter passed to the callback.
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@retval EFI_SUCCESS The DHCPv6 information request exchange process
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completed when TimeoutEvent is NULL. Information
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Request packet has been sent to DHCPv6 server when
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TimeoutEvent is not NULL.
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@retval EFI_NO_RESPONSE The DHCPv6 information request exchange process failed
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because of no response, or not all requested-options
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are responded to by DHCPv6 servers when Timeout happened.
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@retval EFI_ABORTED The DHCPv6 information request exchange process was aborted
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by the user.
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@retval EFI_INVALID_PARAMETER Some parameter is NULL.
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@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
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@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
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**/
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EFI_STATUS
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EFIAPI
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EfiDhcp6InfoRequest (
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IN EFI_DHCP6_PROTOCOL *This,
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IN BOOLEAN SendClientId,
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IN EFI_DHCP6_PACKET_OPTION *OptionRequest,
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IN UINT32 OptionCount,
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IN EFI_DHCP6_PACKET_OPTION *OptionList[] OPTIONAL,
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IN EFI_DHCP6_RETRANSMISSION *Retransmission,
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IN EFI_EVENT TimeoutEvent OPTIONAL,
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IN EFI_DHCP6_INFO_CALLBACK ReplyCallback,
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IN VOID *CallbackContext OPTIONAL
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);
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/**
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Manually extend the valid and preferred lifetimes for the IPv6 addresses
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of the configured IA and update other configuration parameters by sending
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Renew or Rebind packet.
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The RenewRebind() function is used to manually extend the valid and preferred
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lifetimes for the IPv6 addresses of the configured IA and update other
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configuration parameters by sending a Renew or Rebind packet.
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- When RebindRequest is FALSE and the state of the configured IA is Dhcp6Bound,
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it will send Renew packet to the previously DHCPv6 server and transfer the
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state of the configured IA to Dhcp6Renewing. If valid Reply packet received,
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the state transfers to Dhcp6Bound and the valid and preferred timer restarts.
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If fails, the state transfers to Dhcp6Bound but the timer continues.
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- When RebindRequest is TRUE and the state of the configured IA is Dhcp6Bound,
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it will send a Rebind packet. If a valid Reply packet is received, the state transfers
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to Dhcp6Bound, and the valid and preferred timer restarts. If it fails, the state
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transfers to Dhcp6Init, and the IA can't be used.
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@param[in] This The pointer to the Dhcp6 protocol.
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@param[in] RebindRequest If TRUE, Rebind packet will be sent and enter Dhcp6Rebinding state.
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Otherwise, Renew packet will be sent and enter Dhcp6Renewing state.
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@retval EFI_SUCCESS The DHCPv6 renew/rebind exchange process
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completed and at least one IPv6 address of the
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configured IA was bound again when
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EFI_DHCP6_CONFIG_DATA.IaInfoEvent was NULL.
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The EFI DHCPv6 Protocol instance has sent Renew
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or Rebind packet when
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EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL.
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@retval EFI_ACCESS_DENIED The Dhcp6 instance hasn't been configured, or the
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state of the configured IA is not in Dhcp6Bound.
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@retval EFI_ALREADY_STARTED The state of the configured IA has already entered
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Dhcp6Renewing when RebindRequest is FALSE.
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The state of the configured IA has already entered
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Dhcp6Rebinding when RebindRequest is TRUE.
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@retval EFI_ABORTED The DHCPv6 renew/rebind exchange process aborted
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by user.
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@retval EFI_NO_RESPONSE The DHCPv6 renew/rebind exchange process failed
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because of no response.
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@retval EFI_NO_MAPPING No IPv6 address has been bound to the configured
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IA after the DHCPv6 renew/rebind exchange process.
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@retval EFI_INVALID_PARAMETER Some parameter is NULL.
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@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
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**/
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EFI_STATUS
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EFIAPI
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EfiDhcp6RenewRebind (
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IN EFI_DHCP6_PROTOCOL *This,
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IN BOOLEAN RebindRequest
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);
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/**
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Inform that one or more addresses assigned by a server are already
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in use by another node.
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The Decline() function is used to manually decline the assignment of
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IPv6 addresses, which have been already used by another node. If all
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IPv6 addresses of the configured IA are declined through this function,
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the state of the IA will switch through Dhcp6Declining to Dhcp6Init.
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Otherwise, the state of the IA will restore to Dhcp6Bound after the
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declining process. The Decline() can only be called when the IA is in
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Dhcp6Bound state. If the EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL,
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this function is a blocking operation. It will return after the
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declining process finishes, or aborted by user.
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@param[in] This The pointer to the Dhcp6 protocol.
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@param[in] AddressCount The number of declining addresses.
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@param[in] Addresses The pointer to the buffer stored the declining
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addresses.
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@retval EFI_SUCCESS The DHCPv6 decline exchange process completed
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when EFI_DHCP6_CONFIG_DATA.IaInfoEvent was NULL.
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||
|
The Dhcp6 instance has sent Decline packet when
|
||
|
EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL.
|
||
|
@retval EFI_ACCESS_DENIED The Dhcp6 instance hasn't been configured, or the
|
||
|
state of the configured IA is not in Dhcp6Bound.
|
||
|
@retval EFI_ABORTED The DHCPv6 decline exchange process was aborted by the user.
|
||
|
@retval EFI_NOT_FOUND Any specified IPv6 address is not correlated with
|
||
|
the configured IA for this instance.
|
||
|
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
|
||
|
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
EfiDhcp6Decline (
|
||
|
IN EFI_DHCP6_PROTOCOL *This,
|
||
|
IN UINT32 AddressCount,
|
||
|
IN EFI_IPv6_ADDRESS *Addresses
|
||
|
);
|
||
|
|
||
|
/**
|
||
|
Release one or more addresses associated with the configured Ia
|
||
|
for the current instance.
|
||
|
|
||
|
The Release() function is used to manually release the one or more
|
||
|
IPv6 address. If AddressCount is zero, it will release all IPv6
|
||
|
addresses of the configured IA. If all IPv6 addresses of the IA are
|
||
|
released through this function, the state of the IA will switch
|
||
|
through Dhcp6Releasing to Dhcp6Init, otherwise, the state of the
|
||
|
IA will restore to Dhcp6Bound after the releasing process.
|
||
|
The Release() can only be called when the IA is in a Dhcp6Bound state.
|
||
|
If the EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL, the function is
|
||
|
a blocking operation. It will return after the releasing process
|
||
|
finishes, or aborted by user.
|
||
|
|
||
|
@param[in] This The pointer to the Dhcp6 protocol.
|
||
|
@param[in] AddressCount The number of releasing addresses.
|
||
|
@param[in] Addresses The pointer to the buffer stored the releasing
|
||
|
addresses.
|
||
|
@retval EFI_SUCCESS The DHCPv6 release exchange process has
|
||
|
completed when EFI_DHCP6_CONFIG_DATA.IaInfoEvent
|
||
|
is NULL. The Dhcp6 instance has sent Release
|
||
|
packet when EFI_DHCP6_CONFIG_DATA.IaInfoEvent
|
||
|
is not NULL.
|
||
|
@retval EFI_ACCESS_DENIED The Dhcp6 instance hasn't been configured, or the
|
||
|
state of the configured IA is not in Dhcp6Bound.
|
||
|
@retval EFI_ABORTED The DHCPv6 release exchange process was aborted by the user.
|
||
|
@retval EFI_NOT_FOUND Any specified IPv6 address is not correlated with
|
||
|
the configured IA for this instance.
|
||
|
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
|
||
|
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
EfiDhcp6Release (
|
||
|
IN EFI_DHCP6_PROTOCOL *This,
|
||
|
IN UINT32 AddressCount,
|
||
|
IN EFI_IPv6_ADDRESS *Addresses
|
||
|
);
|
||
|
|
||
|
/**
|
||
|
Parse the option data in the Dhcp6 packet.
|
||
|
|
||
|
The Parse() function is used to retrieve the option list in the DHCPv6 packet.
|
||
|
|
||
|
@param[in] This The pointer to the Dhcp6 protocol.
|
||
|
@param[in] Packet The pointer to the Dhcp6 packet.
|
||
|
@param[in, out] OptionCount The number of option in the packet.
|
||
|
@param[out] PacketOptionList The array of pointers to the each option in the packet.
|
||
|
|
||
|
@retval EFI_SUCCESS The packet was successfully parsed.
|
||
|
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
|
||
|
@retval EFI_BUFFER_TOO_SMALL *OptionCount is smaller than the number of options
|
||
|
that were found in the Packet.
|
||
|
|
||
|
**/
|
||
|
EFI_STATUS
|
||
|
EFIAPI
|
||
|
EfiDhcp6Parse (
|
||
|
IN EFI_DHCP6_PROTOCOL *This,
|
||
|
IN EFI_DHCP6_PACKET *Packet,
|
||
|
IN OUT UINT32 *OptionCount,
|
||
|
OUT EFI_DHCP6_PACKET_OPTION *PacketOptionList[] OPTIONAL
|
||
|
);
|
||
|
|
||
|
#endif
|