efi_autoboot.h File Reference

EFI autoboot device. More...

#include <ipxe/efi/efi.h>

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
int	efi_set_autoboot_ll_addr (EFI_HANDLE device, EFI_DEVICE_PATH_PROTOCOL *path)
	Identify autoboot device. More...

Detailed Description

EFI autoboot device.

Definition in file efi_autoboot.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

efi_set_autoboot_ll_addr()

int efi_set_autoboot_ll_addr	(	EFI_HANDLE	device,
		EFI_DEVICE_PATH_PROTOCOL *	path
	)

Identify autoboot device.

Parameters

device	Device handle
path	Device path

Return values

rc	Return status code

Definition at line 49 of file efi_autoboot.c.

                                                                {
        EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
        union {
                EFI_SIMPLE_NETWORK_PROTOCOL *snp;
                void *interface;
        } snp;
        EFI_SIMPLE_NETWORK_MODE *mode;
        EFI_STATUS efirc;
        unsigned int vlan;
        int rc;

        /* Look for an SNP instance on the image's device handle */
        if ( ( efirc = bs->OpenProtocol ( device,
                                          &efi_simple_network_protocol_guid,
                                          &snp.interface, efi_image_handle,
                                          NULL,
                                          EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){
                rc = -EEFI ( efirc );
                DBGC ( device, "EFI %s has no SNP instance: %s\n",
                       efi_handle_name ( device ), strerror ( rc ) );
                return rc;
        }

        /* Record autoboot device */
        mode = snp.snp->Mode;
        vlan = efi_path_vlan ( path );
        set_autoboot_ll_addr ( &mode->CurrentAddress, mode->HwAddressSize,
                               vlan );
        DBGC ( device, "EFI %s found autoboot link-layer address:\n",
               efi_handle_name ( device ) );
        DBGC_HDA ( device, 0, &mode->CurrentAddress, mode->HwAddressSize );
        if ( vlan ) {
                DBGC ( device, "EFI %s found autoboot VLAN %d\n",
                       efi_handle_name ( device ), vlan );
        }

        /* Configure automatic VLAN device, if applicable */
        if ( vlan && ( mode->HwAddressSize == ETH_ALEN ) ) {
                vlan_auto ( &mode->CurrentAddress, vlan );
                DBGC ( device, "EFI %s configured automatic VLAN %d\n",
                       efi_handle_name ( device ), vlan );
        }

        /* Close protocol */
        bs->CloseProtocol ( device, &efi_simple_network_protocol_guid,
                            efi_image_handle, NULL );

        return 0;
}

References EFI_SYSTEM_TABLE::BootServices, EFI_BOOT_SERVICES::CloseProtocol, EFI_SIMPLE_NETWORK_MODE::CurrentAddress, DBGC, DBGC_HDA, EEFI, efi_handle_name(), efi_image_handle, EFI_OPEN_PROTOCOL_GET_PROTOCOL, efi_path_vlan(), efi_simple_network_protocol_guid, efi_systab, ETH_ALEN, EFI_SIMPLE_NETWORK_MODE::HwAddressSize, NULL, EFI_BOOT_SERVICES::OpenProtocol, rc, set_autoboot_ll_addr(), strerror(), and vlan_auto().

Referenced by efi_init_application().