/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file is part of the mingw-w64 runtime package.
 * No warranty is given; refer to the file DISCLAIMER.PD within this package.
 */
#ifndef _CALLOUT_H_
#define _CALLOUT_H_

#ifdef __cplusplus
extern "C" {
#endif

  typedef DWORD DHCP_IP_ADDRESS;
  typedef struct _DHCP_SERVER_OPTIONS {
    BYTE *MessageType;
    DHCP_IP_ADDRESS UNALIGNED *SubnetMask;
    DHCP_IP_ADDRESS UNALIGNED *RequestedAddress;
    DWORD UNALIGNED *RequestLeaseTime;
    BYTE *OverlayFields;
    DHCP_IP_ADDRESS UNALIGNED *RouterAddress;
    DHCP_IP_ADDRESS UNALIGNED *Server;
    BYTE *ParameterRequestList;
    DWORD ParameterRequestListLength;
    CHAR *MachineName;
    DWORD MachineNameLength;
    BYTE ClientHardwareAddressType;
    BYTE ClientHardwareAddressLength;
    BYTE *ClientHardwareAddress;
    CHAR *ClassIdentifier;
    DWORD ClassIdentifierLength;
    BYTE *VendorClass;
    DWORD VendorClassLength;
    DWORD DNSFlags;
    DWORD DNSNameLength;
    LPBYTE DNSName;
    BOOLEAN DSDomainNameRequested;
    CHAR *DSDomainName;
    DWORD DSDomainNameLen;
    DWORD UNALIGNED *ScopeId;
  } DHCP_SERVER_OPTIONS,*LPDHCP_SERVER_OPTIONS;

#define DHCP_CALLOUT_LIST_KEY L"System\\CurrentControlSet\\Services\\DHCPServer\\Parameters"
#define DHCP_CALLOUT_LIST_VALUE L"CalloutDlls"
#define DHCP_CALLOUT_LIST_TYPE REG_MULTI_SZ
#define DHCP_CALLOUT_ENTRY_POINT "DhcpServerCalloutEntry"

#define DHCP_CONTROL_START 0x00000001
#define DHCP_CONTROL_STOP 0x00000002
#define DHCP_CONTROL_PAUSE 0x00000003
#define DHCP_CONTROL_CONTINUE 0x00000004

#define DHCP_DROP_DUPLICATE 0x00000001
#define DHCP_DROP_NOMEM 0x00000002
#define DHCP_DROP_INTERNAL_ERROR 0x00000003
#define DHCP_DROP_TIMEOUT 0x00000004
#define DHCP_DROP_UNAUTH 0x00000005
#define DHCP_DROP_PAUSED 0x00000006
#define DHCP_DROP_NO_SUBNETS 0x00000007
#define DHCP_DROP_INVALID 0x00000008
#define DHCP_DROP_WRONG_SERVER 0x00000009
#define DHCP_DROP_NOADDRESS 0x0000000A
#define DHCP_DROP_PROCESSED 0x0000000B
#define DHCP_DROP_GEN_FAILURE 0x00000100
#define DHCP_SEND_PACKET 0x10000000
#define DHCP_PROB_CONFLICT 0x20000001
#define DHCP_PROB_DECLINE 0x20000002
#define DHCP_PROB_RELEASE 0x20000003
#define DHCP_PROB_NACKED 0x20000004
#define DHCP_GIVE_ADDRESS_NEW 0x30000001
#define DHCP_GIVE_ADDRESS_OLD 0x30000002
#define DHCP_CLIENT_BOOTP 0x30000003
#define DHCP_CLIENT_DHCP 0x30000004

  typedef DWORD (WINAPI *LPDHCP_CONTROL)(DWORD dwControlCode,LPVOID lpReserved);
  typedef DWORD (WINAPI *LPDHCP_NEWPKT)(LPBYTE *Packet,DWORD *PacketSize,DWORD IpAddress,LPVOID Reserved,LPVOID *PktContext,LPBOOL ProcessIt);
  typedef DWORD (WINAPI *LPDHCP_DROP_SEND)(LPBYTE *Packet,DWORD *PacketSize,DWORD ControlCode,DWORD IpAddress,LPVOID Reserved,LPVOID PktContext);
  typedef DWORD (WINAPI *LPDHCP_PROB)(LPBYTE Packet,DWORD PacketSize,DWORD ControlCode,DWORD IpAddress,DWORD AltAddress,LPVOID Reserved,LPVOID PktContext);
  typedef DWORD (WINAPI *LPDHCP_GIVE_ADDRESS)(LPBYTE Packet,DWORD PacketSize,DWORD ControlCode,DWORD IpAddress,DWORD AltAddress,DWORD AddrType,DWORD LeaseTime,LPVOID Reserved,LPVOID PktContext);
  typedef DWORD (WINAPI *LPDHCP_HANDLE_OPTIONS)(LPBYTE Packet,DWORD PacketSize,LPVOID Reserved,LPVOID PktContext,LPDHCP_SERVER_OPTIONS ServerOptions);
  typedef DWORD (WINAPI *LPDHCP_DELETE_CLIENT)(DWORD IpAddress,LPBYTE HwAddress,ULONG HwAddressLength,DWORD Reserved,DWORD ClientType);

  typedef struct _DHCP_CALLOUT_TABLE {
    LPDHCP_CONTROL DhcpControlHook;
    LPDHCP_NEWPKT DhcpNewPktHook;
    LPDHCP_DROP_SEND DhcpPktDropHook;
    LPDHCP_DROP_SEND DhcpPktSendHook;
    LPDHCP_PROB DhcpAddressDelHook;
    LPDHCP_GIVE_ADDRESS DhcpAddressOfferHook;
    LPDHCP_HANDLE_OPTIONS DhcpHandleOptionsHook;
    LPDHCP_DELETE_CLIENT DhcpDeleteClientHook;
    LPVOID DhcpExtensionHook;
    LPVOID DhcpReservedHook;
  } DHCP_CALLOUT_TABLE,*LPDHCP_CALLOUT_TABLE;

  typedef DWORD (WINAPI *LPDHCP_ENTRY_POINT_FUNC)(LPWSTR ChainDlls,DWORD CalloutVersion,LPDHCP_CALLOUT_TABLE CalloutTbl);

#ifdef __cplusplus
}
#endif
#endif