//export webRdpBitmapDecompress
func webRdpBitmapDecompress(context *C.rdpContext, bitmap *C.rdpBitmap, data *C.BYTE,
width C.int, height C.int, bpp C.int, length C.int,
compressed C.BOOL, codecId C.int) C.BOOL {
log.Printf("compressed:%d bpp:%d", compressed, bpp)
size := width * height * 4
if bitmap.data != nil {
C._aligned_free(unsafe.Pointer(bitmap.data))
}
bitmap.data = (*C.BYTE)(C._aligned_malloc(C.size_t(size), 16))
if compressed != false {
if bpp < 32 {
C.freerdp_client_codecs_prepare(context.codecs, C.FREERDP_CODEC_INTERLEAVED)
C.interleaved_decompress(context.codecs.interleaved, data, C.UINT32(length), bpp,
&(bitmap.data), C.PIXEL_FORMAT_XRGB32, -1, 0, 0, width, height, C.getBYTEpalette(context))
} else {
C.freerdp_client_codecs_prepare(context.codecs, C.FREERDP_CODEC_PLANAR)
status := C.planar_decompress(context.codecs.planar, data, C.UINT32(length),
&(bitmap.data), C.PIXEL_FORMAT_XRGB32, -1, 0, 0, width, height, true)
log.Printf("webRdpBitmapDecompress status::::::%d", status)
}
} else {
C.freerdp_image_flip(data, bitmap.data, width, height, bpp)
}
bitmap.compressed = false
bitmap.length = C.UINT32(size)
bitmap.bpp = 32
return true
}
func (nv *NVRAM) Write(contents []byte) error {
if result := C.Tspi_SetAttribUint32(nv.handle, C.TSS_TSPATTRIB_NV_INDEX, 0, C.UINT32(nv.Index)); isError(result) {
return Error{result}
}
if result := C.Tspi_NV_WriteValue(C.TSS_HNVSTORE(nv.handle), 0 /* offset */, C.UINT32(len(contents)), (*C.BYTE)(&contents[0])); isError(result) {
return Error{result}
}
return nil
}
func (nv *NVRAM) setAttributes() error {
if result := C.Tspi_SetAttribUint32(nv.handle, C.TSS_TSPATTRIB_NV_INDEX, 0, C.UINT32(nv.Index)); isError(result) {
return Error{result}
}
if result := C.Tspi_SetAttribUint32(nv.handle, C.TSS_TSPATTRIB_NV_PERMISSIONS, 0, C.UINT32(nv.Permissions)); isError(result) {
return Error{result}
}
if result := C.Tspi_SetAttribUint32(nv.handle, C.TSS_TSPATTRIB_NV_DATASIZE, 0, C.UINT32(nv.Size)); isError(result) {
return Error{result}
}
return nil
}
func (ctx *TPMContext) Random(n uint32) (rdata []byte, err error) {
var randbytes *C.BYTE
result := C.Tspi_TPM_GetRandom(ctx.tpm, C.UINT32(n), &randbytes)
if result != C.TSS_SUCCESS {
switch result {
case C.TSS_E_INVALID_HANDLE:
return nil, ErrInvalidHandle
case C.TSS_E_INTERNAL_ERROR:
return nil, ErrInternalError
case C.TSS_E_BAD_PARAMETER:
return nil, ErrBadParameter
default:
return nil, ErrUnknown
}
}
rand := C.malloc(C.size_t(n))
if rand != nil {
C.memcpy(rand, unsafe.Pointer(randbytes), C.size_t(n))
rdata = C.GoBytes(rand, C.int(n))
C.free(rand)
}
C.Tspi_Context_FreeMemory(ctx.ctx, randbytes)
return
}
// GetEventLog returns an array of structures representing the contents of the
// TSS event log
func (tpm *TPM) GetEventLog() ([]Log, error) {
var count C.UINT32
var events *C.TSS_PCR_EVENT
var event C.TSS_PCR_EVENT
err := tspiError(C.Tspi_TPM_GetEventLog(tpm.handle, &count, &events))
if err != nil {
return nil, err
}
if count == 0 {
return nil, nil
}
log := make([]Log, count)
length := count * C.UINT32(unsafe.Sizeof(event))
slice := (*[1 << 30]C.TSS_PCR_EVENT)(unsafe.Pointer(events))[:length:length]
for i := 0; i < int(count); i++ {
log[i].Pcr = int(slice[i].ulPcrIndex)
log[i].Eventtype = int(slice[i].eventType)
log[i].PcrValue = C.GoBytes(unsafe.Pointer(slice[i].rgbPcrValue), C.int(slice[i].ulPcrValueLength))
log[i].Event = C.GoBytes(unsafe.Pointer(slice[i].rgbEvent), C.int(slice[i].ulEventLength))
}
C.Tspi_Context_FreeMemory(tpm.context, (*C.BYTE)(unsafe.Pointer(events)))
return log, nil
}
func (nv *NVRAM) Read(out []byte) (int, error) {
if result := C.Tspi_SetAttribUint32(nv.handle, C.TSS_TSPATTRIB_NV_INDEX, 0, C.UINT32(nv.Index)); isError(result) {
return 0, Error{result}
}
l32 := C.UINT32(len(out))
var buf *C.BYTE
if result := C.Tspi_NV_ReadValue(C.TSS_HNVSTORE(nv.handle), 0 /* offset */, &l32, &buf); isError(result) {
return 0, Error{result}
}
l := int(l32)
if l > len(out) {
l = len(out)
}
if l < 0 {
l = 0
}
C.memcpy(unsafe.Pointer(&out[0]), unsafe.Pointer(buf), C.size_t(l))
return l, nil
}
// ExtendPCR extends a pcr. If event is nil, data must be pre-hashed with
// SHA1. If event is not nil, event is used to populate the TSS event
// log. If both data and event are provided, both will be used to create the
// extend hash.
func (tpm *TPM) ExtendPCR(pcr int, data []byte, eventtype int, event []byte) error {
var outlen C.UINT32
var pcrval *C.BYTE
var eventstruct C.TSS_PCR_EVENT
var err error
shasum := sha1.Sum(data)
if event != nil {
var pcrdata *C.BYTE
var pcrdatalen C.UINT32
eventstruct.versionInfo.bMajor = 1
eventstruct.versionInfo.bMinor = 2
eventstruct.versionInfo.bRevMajor = 1
eventstruct.versionInfo.bRevMinor = 0
eventstruct.ulPcrIndex = C.UINT32(pcr)
eventstruct.rgbPcrValue = (*C.BYTE)(&shasum[0])
eventstruct.eventType = C.TSS_EVENTTYPE(eventtype)
eventstruct.ulEventLength = C.UINT32(len(event))
eventstruct.rgbEvent = (*C.BYTE)(&event[0])
if data == nil || len(data) == 0 {
pcrdata = nil
pcrdatalen = C.UINT32(0)
} else {
pcrdata = (*C.BYTE)(&data[0])
pcrdatalen = C.UINT32(len(data))
}
err = tspiError(C.Tspi_TPM_PcrExtend(tpm.handle, C.UINT32(pcr), pcrdatalen, pcrdata, &eventstruct, &outlen, &pcrval))
} else {
err = tspiError(C.Tspi_TPM_PcrExtend(tpm.handle, C.UINT32(pcr), C.UINT32(len(shasum)), (*C.BYTE)(&shasum[0]), nil, &outlen, &pcrval))
}
C.Tspi_Context_FreeMemory(tpm.context, pcrval)
return err
}
// GetEventLog returns an array of structures representing the contents of the
// TSS event log
func (tpm *TPM) GetEventLog() ([]tspiconst.Log, error) {
var count C.UINT32
var events *C.TSS_PCR_EVENT
var event C.TSS_PCR_EVENT
var log []tspiconst.Log
f, err := os.Open("/sys/kernel/security/tpm0/binary_bios_measurements")
if err != nil {
return nil, err
}
firmware_events := bufio.NewReader(f)
for {
var entry tspiconst.Log
var datalen int32
err := binary.Read(firmware_events, binary.LittleEndian, &entry.Pcr)
if err == io.EOF {
break
}
if err != nil {
return nil, err
}
err = binary.Read(firmware_events, binary.LittleEndian, &entry.Eventtype)
if err != nil {
return nil, err
}
err = binary.Read(firmware_events, binary.LittleEndian, &entry.PcrValue)
if err != nil {
return nil, err
}
err = binary.Read(firmware_events, binary.LittleEndian, &datalen)
if err != nil {
return nil, err
}
data := make([]byte, datalen)
err = binary.Read(firmware_events, binary.LittleEndian, &data)
if err != nil {
return nil, err
}
entry.Event = data[:]
log = append(log, entry)
}
err = tspiError(C.Tspi_TPM_GetEventLog(tpm.handle, &count, &events))
if err != nil {
return nil, err
}
if count == 0 {
return log, nil
}
length := count * C.UINT32(unsafe.Sizeof(event))
slice := (*[1 << 30]C.TSS_PCR_EVENT)(unsafe.Pointer(events))[:length:length]
for i := 0; i < int(count); i++ {
var entry tspiconst.Log
entry.Pcr = int32(slice[i].ulPcrIndex)
entry.Eventtype = int32(slice[i].eventType)
copy(entry.PcrValue[:], C.GoBytes(unsafe.Pointer(slice[i].rgbPcrValue), C.int(slice[i].ulPcrValueLength)))
entry.Event = C.GoBytes(unsafe.Pointer(slice[i].rgbEvent), C.int(slice[i].ulEventLength))
log = append(log, entry)
}
C.Tspi_Context_FreeMemory(tpm.context, (*C.BYTE)(unsafe.Pointer(events)))
return log, nil
}
