DnsDhcp.h

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#ifndef _DNS_DHCP_H_
#define _DNS_DHCP_H_
 
//
// DHCP DNS related
//
#pragma pack(1)
 
#define IP4_ETHER_PROTO  0x0800
 
#define DHCP4_OPCODE_REQUEST  1
#define DHCP4_MAGIC           0x63538263  
#define DHCP4_TAG_EOP         255         
 
#define DHCP4_TAG_TYPE     53
#define DHCP4_MSG_REQUEST  3
#define DHCP4_MSG_INFORM   8
 
#define DHCP4_TAG_PARA_LIST   55
#define DHCP4_TAG_DNS_SERVER  6
 
#define DHCP6_TAG_DNS_REQUEST  6
#define DHCP6_TAG_DNS_SERVER   23
 
#define DNS_CHECK_MEDIA_GET_DHCP_WAITING_TIME  EFI_TIMER_PERIOD_SECONDS(20)
 
//
// The required Dns4 server information.
//
typedef struct {
  UINT32              *ServerCount;
  EFI_IPv4_ADDRESS    *ServerList;
} DNS4_SERVER_INFOR;
 
//
// The required Dns6 server information.
//
typedef struct {
  UINT32              *ServerCount;
  EFI_IPv6_ADDRESS    *ServerList;
} DNS6_SERVER_INFOR;
 
#pragma pack()
 
EFI_STATUS
ParseDhcp4Ack (
  IN EFI_DHCP4_PROTOCOL  *Dhcp4,
  IN EFI_DHCP4_PACKET    *Packet,
  IN DNS4_SERVER_INFOR   *DnsServerInfor
  );
 
EFI_STATUS
EFIAPI
ParseDhcp6Ack (
  IN EFI_DHCP6_PROTOCOL  *This,
  IN VOID                *Context,
  IN EFI_DHCP6_PACKET    *Packet
  );
 
EFI_STATUS
GetDns4ServerFromDhcp4 (
  IN  DNS_INSTANCE      *Instance,
  OUT UINT32            *DnsServerCount,
  OUT EFI_IPv4_ADDRESS  **DnsServerList
  );
 
EFI_STATUS
GetDns6ServerFromDhcp6 (
  IN  EFI_HANDLE        Image,
  IN  EFI_HANDLE        Controller,
  OUT UINT32            *DnsServerCount,
  OUT EFI_IPv6_ADDRESS  **DnsServerList
  );
 
#endif