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|
package device
import (
"encoding/binary"
"io"
"log"
"github.com/foxboron/go-uefi/efi/util"
)
// Subtypes of Messaging Device Path
// Section 10.3.4
const (
_ DevicePathSubType = iota
_
_
_
_
MessagingUSB
_
_
_
_
MessagingVendor
)
type USBMessagingDevicePath struct {
EFIDevicePath
USBParentPortNumber uint8
Interface uint8
}
func (u USBMessagingDevicePath) Format() string {
return "No format"
}
type VendorMessagingDevicePath struct {
EFIDevicePath
Guid util.EFIGUID
}
func (v VendorMessagingDevicePath) Format() string {
return "No format"
}
func ParseMessagingDevicePath(f io.Reader, efi *EFIDevicePath) EFIDevicePaths {
switch efi.SubType {
case MessagingUSB:
u := USBMessagingDevicePath{EFIDevicePath: *efi}
for _, d := range []interface{}{&u.USBParentPortNumber, &u.Interface} {
if err := binary.Read(f, binary.LittleEndian, d); err != nil {
log.Fatalf("Couldn't parse USB Messaging Device Path: %s", err)
}
}
return u
case MessagingVendor:
m := VendorMessagingDevicePath{EFIDevicePath: *efi}
if err := binary.Read(f, binary.LittleEndian, &m.Guid); err != nil {
log.Fatalf("Could not parse Vendor Messaging Device Path: %s", err)
}
default:
log.Printf("Not implemented MessagingDevicePath type: %x\n", efi.SubType)
}
return nil
}
|
