diff options
| -rw-r--r-- | efi/main.c | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -15,6 +15,7 @@ #include "efi.h" #include "fio.h" #include "version.h" +#include "efi_pxe.h" __export uint16_t PXERetry; __export char copyright_str[] = "Copyright (C) 2011-" YEAR_STR "\n"; @@ -40,6 +41,41 @@ efi_close_protocol(EFI_HANDLE handle, EFI_GUID *guid, EFI_HANDLE agent, guid, agent, controller); } +bool efi_get_MAC( EFI_DEVICE_PATH * pDevPath, uint8_t * mac, uint16_t mac_size) +{ + /* + * in case the DevPath contains more than one instance we consider all of them + * contain "the same" MAC Address Device Path structure + */ + EFI_DEVICE_PATH *DevPathNode; + MAC_ADDR_DEVICE_PATH *MAC; + + if (!pDevPath) + return FALSE; + + pDevPath = UnpackDevicePath(pDevPath); + + /* Process each device path node */ + DevPathNode = pDevPath; + while (!IsDevicePathEnd(DevPathNode)) { + /* Find the handler to dump this device path node */ + if (DevicePathType(DevPathNode) == MESSAGING_DEVICE_PATH && + DevicePathSubType(DevPathNode) == MSG_MAC_ADDR_DP) { + MAC = DevPathNode; + CopyMem(mac, MAC->MacAddress.Addr, PXE_MAC_LENGTH); + FreePool(pDevPath); + return TRUE; + } + + /* Next device path node */ + DevPathNode = NextDevicePathNode(DevPathNode); + } + + FreePool(pDevPath); + return FALSE; +} + + /* As of UEFI-2.4.0, all EFI_SERVICE_BINDINGs are for networking */ struct efi_binding *efi_create_binding(EFI_GUID *bguid, EFI_GUID *pguid) { |