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[efi] Expose DHCP packets via the Apple NetBoot protocol

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Mac OS X uses non-standard EFI protocols to obtain the DHCP packets
from the UEFI firmware.

Originally-implemented-by: Michael Kuron <m.kuron@gmx.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2016-05-29 13:04:26 +01:00
parent af9afd0a86
commit aa4b038c70
5 changed files with 145 additions and 3 deletions
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46
src/include/ipxe/efi/Protocol/AppleNetBoot.h Normal file
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@@ -0,0 +1,46 @@
#ifndef __EFI_APPLE_NET_BOOT_PROTOCOL_H__
#define __EFI_APPLE_NET_BOOT_PROTOCOL_H__
/** @file
*
* Apple Net Boot Protocol
*
*/
FILE_LICENCE ( BSD3 );
#define EFI_APPLE_NET_BOOT_PROTOCOL_GUID \
{ 0x78ee99fb, 0x6a5e, 0x4186, \
{ 0x97, 0xde, 0xcd, 0x0a, 0xba, 0x34, 0x5a, 0x74 } }
typedef struct _EFI_APPLE_NET_BOOT_PROTOCOL EFI_APPLE_NET_BOOT_PROTOCOL;
/**
Get a DHCP packet obtained by the firmware during NetBoot.
@param This A pointer to the APPLE_NET_BOOT_PROTOCOL instance.
@param BufferSize A pointer to the size of the buffer in bytes.
@param DataBuffer The memory buffer to copy the packet to. If it is
NULL, then the size of the packet is returned
in BufferSize.
@retval EFI_SUCCESS The packet was copied.
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the
current packet. BufferSize has been
updated with the size needed to
complete the request.
**/
typedef
EFI_STATUS
(EFIAPI *GET_DHCP_RESPONSE) (
IN EFI_APPLE_NET_BOOT_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *DataBuffer
);
struct _EFI_APPLE_NET_BOOT_PROTOCOL
{
GET_DHCP_RESPONSE GetDhcpResponse;
GET_DHCP_RESPONSE GetBsdpResponse;
};
#endif /*__EFI_APPLE_NET_BOOT_PROTOCOL_H__ */

1
src/include/ipxe/efi/efi.h
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@@ -154,6 +154,7 @@ struct efi_config_table {
#define EEFI( efirc ) EPLATFORM ( EINFO_EPLATFORM, efirc )
extern EFI_GUID efi_absolute_pointer_protocol_guid;
extern EFI_GUID efi_apple_net_boot_protocol_guid;
extern EFI_GUID efi_arp_protocol_guid;
extern EFI_GUID efi_arp_service_binding_protocol_guid;
extern EFI_GUID efi_block_io_protocol_guid;