efi_veto.h File Reference

EFI driver vetoes. More...

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	FILE_SECBOOT (PERMITTED)
void	efi_veto (void)
	Remove any vetoed drivers. More...

Detailed Description

EFI driver vetoes.

Definition in file efi_veto.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

FILE_SECBOOT()

FILE_SECBOOT

(

PERMITTED

)

efi_veto()

void efi_veto

(

void

)

Remove any vetoed drivers.

Definition at line 615 of file efi_veto.c.

                       {
        EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
        struct efi_veto veto;
        EFI_HANDLE *drivers;
        EFI_HANDLE driver;
        UINTN count;
        unsigned int i;
        char *manufacturer;
        EFI_STATUS efirc;
        int rc;

        /* Locate all driver binding protocol handles */
        if ( ( efirc = bs->LocateHandleBuffer (
                        ByProtocol, &efi_driver_binding_protocol_guid,
                        NULL, &count, &drivers ) ) != 0 ) {
                rc = -EEFI ( efirc );
                DBGC ( &efi_vetoes, "EFIVETO could not list all drivers: "
                       "%s\n", strerror ( rc ) );
                return;
        }

        /* Get manufacturer name */
        fetch_string_setting_copy ( NULL, &manufacturer_setting,
                                    &manufacturer );
        DBGC ( &efi_vetoes, "EFIVETO manufacturer is \"%s\"\n", manufacturer );

        /* Unload any vetoed drivers */
        for ( i = 0 ; i < count ; i++ ) {
                driver = drivers[ count - i - 1 ];
                if ( ( rc = efi_veto_find ( driver, manufacturer,
                                            &veto ) ) != 0 ) {
                        DBGC ( driver, "EFIVETO %s could not determine "
                               "vetoing: %s\n",
                               efi_handle_name ( driver ), strerror ( rc ) );
                        continue;
                }
                if ( ! veto.driver )
                        continue;
                if ( ( rc = efi_veto_driver ( &veto ) ) != 0 ) {
                        DBGC ( driver, "EFIVETO %s could not veto: %s\n",
                               efi_handle_name ( driver ), strerror ( rc ) );
                }
        }

        /* Free manufacturer name */
        free ( manufacturer );

        /* Free handle list */
        bs->FreePool ( drivers );
}

References EFI_SYSTEM_TABLE::BootServices, ByProtocol, count, DBGC, efi_veto::driver, EEFI, efi_driver_binding_protocol_guid, efi_handle_name(), efi_systab, efi_veto_driver(), efi_veto_find(), efi_vetoes, fetch_string_setting_copy(), free, EFI_BOOT_SERVICES::FreePool, EFI_BOOT_SERVICES::LocateHandleBuffer, manufacturer, NULL, rc, and strerror().

Referenced by efi_probe().