/** @file
  Support functions declaration for UefiPxeBc Driver.

  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef __EFI_PXEBC_SUPPORT_H__
#define __EFI_PXEBC_SUPPORT_H__

#define ICMP_DEST_UNREACHABLE   3
#define ICMP_SOURCE_QUENCH      4
#define ICMP_REDIRECT           5
#define ICMP_ECHO_REQUEST       8
#define ICMP_TIME_EXCEEDED      11
#define ICMP_PARAMETER_PROBLEM  12

/**
  Flush the previous configuration using the new station Ip address.

  @param[in]   Private        Pointer to PxeBc private data.
  @param[in]   StationIp      Pointer to the station Ip address.
  @param[in]   SubnetMask     Pointer to the subnet mask address for v4.

  @retval EFI_SUCCESS         Successfully flushed the previous config.
  @retval Others              Failed to flush using the new station Ip.

**/
EFI_STATUS
PxeBcFlushStationIp (
  PXEBC_PRIVATE_DATA  *Private,
  EFI_IP_ADDRESS      *StationIp      OPTIONAL,
  EFI_IP_ADDRESS      *SubnetMask     OPTIONAL
  );

/**
  Notify callback function when an event is triggered.

  @param[in]  Event           The triggered event.
  @param[in]  Context         The opaque parameter to the function.

**/
VOID
EFIAPI
PxeBcCommonNotify (
  IN EFI_EVENT  Event,
  IN VOID       *Context
  );

/**
  Perform arp resolution from the arp cache in PxeBcMode.

  @param  Mode           Pointer to EFI_PXE_BASE_CODE_MODE.
  @param  Ip4Addr        The Ip4 address for resolution.
  @param  MacAddress     The resolved MAC address if the resolution is successful.
                         The value is undefined if resolution fails.

  @retval TRUE           Found a matched entry.
  @retval FALSE          Did not find a matched entry.

**/
BOOLEAN
PxeBcCheckArpCache (
  IN  EFI_PXE_BASE_CODE_MODE  *Mode,
  IN  EFI_IPv4_ADDRESS        *Ip4Addr,
  OUT EFI_MAC_ADDRESS         *MacAddress
  );

/**
  Update arp cache periodically.

  @param  Event              Pointer to EFI_PXE_BC_PROTOCOL.
  @param  Context            Context of the timer event.

**/
VOID
EFIAPI
PxeBcArpCacheUpdate (
  IN EFI_EVENT  Event,
  IN VOID       *Context
  );

/**
  xxx

  @param  Event                 The event signaled.
  @param  Context               The context passed in by the event notifier.

**/
VOID
EFIAPI
PxeBcIcmpErrorUpdate (
  IN EFI_EVENT  Event,
  IN VOID       *Context
  );

/**
  xxx

  @param  Event                 The event signaled.
  @param  Context               The context passed in by the event notifier.

**/
VOID
EFIAPI
PxeBcIcmp6ErrorUpdate (
  IN EFI_EVENT  Event,
  IN VOID       *Context
  );

/**
  This function is to configure a UDPv4 instance for UdpWrite.

  @param[in]       Udp4                 The pointer to EFI_UDP4_PROTOCOL.
  @param[in]       StationIp            The pointer to the station address.
  @param[in]       SubnetMask           The pointer to the subnet mask.
  @param[in]       Gateway              The pointer to the gateway address.
  @param[in, out]  SrcPort              The pointer to the source port.
  @param[in]       DoNotFragment        If TRUE, fragment is not enabled.
                                        Otherwise, fragment is enabled.
  @param[in]       Ttl                  The time to live field of the IP header.
  @param[in]       ToS                  The type of service field of the IP header.

  @retval          EFI_SUCCESS          Successfully configured this instance.
  @retval          Others               Failed to configure this instance.

**/
EFI_STATUS
PxeBcConfigUdp4Write (
  IN     EFI_UDP4_PROTOCOL  *Udp4,
  IN     EFI_IPv4_ADDRESS   *StationIp,
  IN     EFI_IPv4_ADDRESS   *SubnetMask,
  IN     EFI_IPv4_ADDRESS   *Gateway,
  IN OUT UINT16             *SrcPort,
  IN     BOOLEAN            DoNotFragment,
  IN     UINT8              Ttl,
  IN     UINT8              ToS
  );

/**
  This function is to configure a UDPv6 instance for UdpWrite.

  @param[in]       Udp6                 Pointer to EFI_UDP6_PROTOCOL.
  @param[in]       StationIp            Pointer to the station address.
  @param[in, out]  SrcPort              Pointer to the source port.

  @retval          EFI_SUCCESS          Successfully configured this instance.
  @retval          Others               Failed to configure this instance.

**/
EFI_STATUS
PxeBcConfigUdp6Write (
  IN     EFI_UDP6_PROTOCOL  *Udp6,
  IN     EFI_IPv6_ADDRESS   *StationIp,
  IN OUT UINT16             *SrcPort
  );

/**
  This function is to configure a UDPv4 instance for UdpWrite.

  @param[in]       Udp4                 Pointer to EFI_UDP4_PROTOCOL.
  @param[in]       Session              Pointer to the UDP4 session data.
  @param[in]       TimeoutEvent         The event for timeout.
  @param[in]       Gateway              Pointer to the gateway address.
  @param[in]       HeaderSize           An optional field which may be set to the length of a header
                                        at HeaderPtr to be prefixed to the data at BufferPtr.
  @param[in]       HeaderPtr            If HeaderSize is not NULL, a pointer to a header to be
                                        prefixed to the data at BufferPtr.
  @param[in]       BufferSize           A pointer to the size of the data at BufferPtr.
  @param[in]       BufferPtr            A pointer to the data to be written.

  @retval          EFI_SUCCESS          Successfully sent out data with Udp4Write.
  @retval          Others               Failed to send out data.

**/
EFI_STATUS
PxeBcUdp4Write (
  IN EFI_UDP4_PROTOCOL      *Udp4,
  IN EFI_UDP4_SESSION_DATA  *Session,
  IN EFI_EVENT              TimeoutEvent,
  IN EFI_IPv4_ADDRESS       *Gateway      OPTIONAL,
  IN UINTN                  *HeaderSize   OPTIONAL,
  IN VOID                   *HeaderPtr    OPTIONAL,
  IN UINTN                  *BufferSize,
  IN VOID                   *BufferPtr
  );

/**
  This function is to configure a UDPv6 instance for UdpWrite.

  @param[in]       Udp6                 Pointer to EFI_UDP6_PROTOCOL.
  @param[in]       Session              Pointer to the UDP6 session data.
  @param[in]       TimeoutEvent         The event for timeout.
  @param[in]       HeaderSize           An optional field which may be set to the length of a header
                                        at HeaderPtr to be prefixed to the data at BufferPtr.
  @param[in]       HeaderPtr            If HeaderSize is not NULL, a pointer to a header to be
                                        prefixed to the data at BufferPtr.
  @param[in]       BufferSize           A pointer to the size of the data at BufferPtr.
  @param[in]       BufferPtr            A pointer to the data to be written.

  @retval          EFI_SUCCESS          Successfully to send out data with Udp6Write.
  @retval          Others               Failed to send out data.

**/
EFI_STATUS
PxeBcUdp6Write (
  IN EFI_UDP6_PROTOCOL      *Udp6,
  IN EFI_UDP6_SESSION_DATA  *Session,
  IN EFI_EVENT              TimeoutEvent,
  IN UINTN                  *HeaderSize   OPTIONAL,
  IN VOID                   *HeaderPtr    OPTIONAL,
  IN UINTN                  *BufferSize,
  IN VOID                   *BufferPtr
  );

/**
  Check the received packet with the Ip filter.

  @param[in]  Mode                Pointer to mode data of PxeBc.
  @param[in]  Session             Pointer to the current UDPv4 session.
  @param[in]  OpFlags             Operation flag for UdpRead/UdpWrite.

  @retval     TRUE                Successfully passed the Ip filter.
  @retval     FALSE               Failed to pass the Ip filter.

**/
BOOLEAN
PxeBcCheckByIpFilter (
  IN EFI_PXE_BASE_CODE_MODE  *Mode,
  IN VOID                    *Session,
  IN UINT16                  OpFlags
  );

/**
  Filter the received packet with the destination Ip.

  @param[in]       Mode           Pointer to mode data of PxeBc.
  @param[in]       Session        Pointer to the current UDPv4 session.
  @param[in, out]  DestIp         Pointer to the dest Ip address.
  @param[in]       OpFlags        Operation flag for UdpRead/UdpWrite.

  @retval     TRUE                Successfully passed the IPv4 filter.
  @retval     FALSE               Failed to pass the IPv4 filter.

**/
BOOLEAN
PxeBcCheckByDestIp (
  IN     EFI_PXE_BASE_CODE_MODE  *Mode,
  IN     VOID                    *Session,
  IN OUT EFI_IP_ADDRESS          *DestIp,
  IN     UINT16                  OpFlags
  );

/**
  Check the received packet with the destination port.

  @param[in]       Mode           Pointer to mode data of PxeBc.
  @param[in]       Session        Pointer to the current UDPv4 session.
  @param[in, out]  DestPort       Pointer to the destination port.
  @param[in]       OpFlags        Operation flag for UdpRead/UdpWrite.

  @retval     TRUE                Successfully passed the IPv4 filter.
  @retval     FALSE               Failed to pass the IPv4 filter.

**/
BOOLEAN
PxeBcCheckByDestPort (
  IN     EFI_PXE_BASE_CODE_MODE  *Mode,
  IN     VOID                    *Session,
  IN OUT UINT16                  *DestPort,
  IN     UINT16                  OpFlags
  );

/**
  Filter the received packet with the source Ip.

  @param[in]       Mode           Pointer to mode data of PxeBc.
  @param[in]       Session        Pointer to the current UDPv4 session.
  @param[in, out]  SrcIp          Pointer to the source Ip address.
  @param[in]       OpFlags        Operation flag for UdpRead/UdpWrite.

  @retval     TRUE                Successfully passed the IPv4 filter.
  @retval     FALSE               Failed to pass the IPv4 filter.

**/
BOOLEAN
PxeBcFilterBySrcIp (
  IN     EFI_PXE_BASE_CODE_MODE  *Mode,
  IN     VOID                    *Session,
  IN OUT EFI_IP_ADDRESS          *SrcIp,
  IN     UINT16                  OpFlags
  );

/**
  Filter the received packet with the source port.

  @param[in]       Mode           Pointer to mode data of PxeBc.
  @param[in]       Session        Pointer to the current UDPv4 session.
  @param[in, out]  SrcPort        Pointer to the source port.
  @param[in]       OpFlags        Operation flag for UdpRead/UdpWrite.

  @retval     TRUE                Successfully passed the IPv4 filter.
  @retval     FALSE               Failed to pass the IPv4 filter.

**/
BOOLEAN
PxeBcFilterBySrcPort (
  IN     EFI_PXE_BASE_CODE_MODE  *Mode,
  IN     VOID                    *Session,
  IN OUT UINT16                  *SrcPort,
  IN     UINT16                  OpFlags
  );

/**
  This function is to receive packet with Udp4Read.

  @param[in]       Udp4                 Pointer to EFI_UDP4_PROTOCOL.
  @param[in]       Token                Pointer to EFI_UDP4_COMPLETION_TOKEN.
  @param[in]       Mode                 Pointer to EFI_PXE_BASE_CODE_MODE.
  @param[in]       TimeoutEvent         The event for timeout.
  @param[in]       OpFlags              The UDP operation flags.
  @param[in]       IsDone               Pointer to IsDone flag.
  @param[out]      IsMatched            Pointer to IsMatched flag.
  @param[in, out]  DestIp               Pointer to destination address.
  @param[in, out]  DestPort             Pointer to destination port.
  @param[in, out]  SrcIp                Pointer to source address.
  @param[in, out]  SrcPort              Pointer to source port.

  @retval          EFI_SUCCESS          Successfully read data with Udp4.
  @retval          Others               Failed to send out data.

**/
EFI_STATUS
PxeBcUdp4Read (
  IN     EFI_UDP4_PROTOCOL           *Udp4,
  IN     EFI_UDP4_COMPLETION_TOKEN   *Token,
  IN     EFI_PXE_BASE_CODE_MODE      *Mode,
  IN     EFI_EVENT                   TimeoutEvent,
  IN     UINT16                      OpFlags,
  IN     BOOLEAN                     *IsDone,
  OUT BOOLEAN                        *IsMatched,
  IN OUT EFI_IP_ADDRESS              *DestIp      OPTIONAL,
  IN OUT EFI_PXE_BASE_CODE_UDP_PORT  *DestPort    OPTIONAL,
  IN OUT EFI_IP_ADDRESS              *SrcIp       OPTIONAL,
  IN OUT EFI_PXE_BASE_CODE_UDP_PORT  *SrcPort     OPTIONAL
  );

/**
  This function is to receive packet with Udp6Read.

  @param[in]       Udp6                 Pointer to EFI_UDP6_PROTOCOL.
  @param[in]       Token                Pointer to EFI_UDP6_COMPLETION_TOKEN.
  @param[in]       Mode                 Pointer to EFI_PXE_BASE_CODE_MODE.
  @param[in]       TimeoutEvent         The event for timeout.
  @param[in]       OpFlags              The UDP operation flags.
  @param[in]       IsDone               Pointer to IsDone flag.
  @param[out]      IsMatched            Pointer to IsMatched flag.
  @param[in, out]  DestIp               Pointer to destination address.
  @param[in, out]  DestPort             Pointer to destination port.
  @param[in, out]  SrcIp                Pointer to source address.
  @param[in, out]  SrcPort              Pointer to source port.

  @retval          EFI_SUCCESS          Successfully read data with Udp6.
  @retval          Others               Failed to send out data.

**/
EFI_STATUS
PxeBcUdp6Read (
  IN     EFI_UDP6_PROTOCOL           *Udp6,
  IN     EFI_UDP6_COMPLETION_TOKEN   *Token,
  IN     EFI_PXE_BASE_CODE_MODE      *Mode,
  IN     EFI_EVENT                   TimeoutEvent,
  IN     UINT16                      OpFlags,
  IN     BOOLEAN                     *IsDone,
  OUT BOOLEAN                        *IsMatched,
  IN OUT EFI_IP_ADDRESS              *DestIp      OPTIONAL,
  IN OUT EFI_PXE_BASE_CODE_UDP_PORT  *DestPort    OPTIONAL,
  IN OUT EFI_IP_ADDRESS              *SrcIp       OPTIONAL,
  IN OUT EFI_PXE_BASE_CODE_UDP_PORT  *SrcPort     OPTIONAL
  );

/**
  This function is to display the IPv4 address.

  @param[in]  Ip        Pointer to the IPv4 address.

**/
VOID
PxeBcShowIp4Addr (
  IN EFI_IPv4_ADDRESS  *Ip
  );

/**
  This function is to display the IPv6 address.

  @param[in]  Ip        Pointer to the IPv6 address.

**/
VOID
PxeBcShowIp6Addr (
  IN EFI_IPv6_ADDRESS  *Ip
  );

/**
  This function is to convert UINTN to ASCII string with required format.

  @param[in]  Number         Numeric value to be converted.
  @param[in]  Buffer         Pointer to the buffer for ASCII string.
  @param[in]  Length         Length of the required format.

**/
VOID
PxeBcUintnToAscDecWithFormat (
  IN UINTN  Number,
  IN UINT8  *Buffer,
  IN INTN   Length
  );

/**
  This function is to convert a UINTN to a ASCII string, and return the
  actual length of the buffer.

  @param[in]  Number         Numeric value to be converted.
  @param[in]  Buffer         Pointer to the buffer for ASCII string.
  @param[in]  BufferSize     The maxsize of the buffer.

  @return     Length         The actual length of the ASCII string.

**/
UINTN
PxeBcUintnToAscDec (
  IN UINTN  Number,
  IN UINT8  *Buffer,
  IN UINTN  BufferSize
  );

/**
  This function is to convert unicode hex number to a UINT8.

  @param[out]  Digit                   The converted UINT8 for output.
  @param[in]   Char                    The unicode hex number to be converted.

  @retval      EFI_SUCCESS             Successfully converted the unicode hex.
  @retval      EFI_INVALID_PARAMETER   Failed to convert the unicode hex.

**/
EFI_STATUS
PxeBcUniHexToUint8 (
  OUT UINT8   *Digit,
  IN  CHAR16  Char
  );

/**
  Calculate the elapsed time.

  @param[in]      Private      The pointer to PXE private data

**/
VOID
CalcElapsedTime (
  IN     PXEBC_PRIVATE_DATA  *Private
  );

/**
  Get the Nic handle using any child handle in the IPv4 stack.

  @param[in]  ControllerHandle    Pointer to child handle over IPv4.

  @return NicHandle               The pointer to the Nic handle.

**/
EFI_HANDLE
PxeBcGetNicByIp4Children (
  IN EFI_HANDLE  ControllerHandle
  );

/**
  Get the Nic handle using any child handle in the IPv6 stack.

  @param[in]  ControllerHandle    Pointer to child handle over IPv6.

  @return NicHandle               The pointer to the Nic handle.

**/
EFI_HANDLE
PxeBcGetNicByIp6Children (
  IN EFI_HANDLE  ControllerHandle
  );

#endif