void HibernateBoot(char *image_filename)
{
long long size, imageSize, codeSize, allocSize;
long mem_base;
IOHibernateImageHeader _header;
IOHibernateImageHeader * header = &_header;
long buffer;
size = ReadFileAtOffset (image_filename, header, 0, sizeof(IOHibernateImageHeader));
printf("header read size %x\n", size);
imageSize = header->image1Size;
codeSize = header->restore1PageCount << 12;
if (kIOHibernateHeaderSignature != header->signature)
{
printf ("Incorrect image signature\n");
return;
}
if (header->encryptStart)
{
printf ("Resuming from Encrypted image is unsupported.\n"
"Uncheck \"Use secure virtual memory\" in \"Security\" pane on system preferences.\n"
"Press any key to proceed with normal boot.\n");
getc ();
return;
}
// depends on NVRAM
#if 0
{
uint32_t machineSignature;
size = GetProp(gChosenPH, kIOHibernateMachineSignatureKey,
(char *)&machineSignature, sizeof(machineSignature));
if (size != sizeof(machineSignature)) machineSignature = 0;
if (machineSignature != header->machineSignature)
break;
}
#endif
allocSize = imageSize + ((4095 + sizeof(hibernate_graphics_t)) & ~4095);
mem_base = getmemorylimit() - allocSize;//TODO: lower this
printf("mem_base %x\n", mem_base);
if (!((long long)mem_base+allocSize<1024*bootInfo->extmem+0x100000))
{
printf ("Not enough space to restore image. Press any key to proceed with normal boot.\n");
getc ();
return;
}
bcopy(header, (void *) mem_base, sizeof(IOHibernateImageHeader));
header = (IOHibernateImageHeader *) mem_base;
imageSize -= sizeof(IOHibernateImageHeader);
buffer = (long)(header + 1);
if (header->previewSize)
{
uint64_t preview_offset = header->fileExtentMapSize - sizeof(header->fileExtentMap) + codeSize;
uint8_t progressSaveUnder[kIOHibernateProgressCount][kIOHibernateProgressSaveUnderSize];
ReadFileAtOffset (image_filename, (char *)buffer, sizeof(IOHibernateImageHeader), preview_offset+header->previewSize);
drawPreview ((void *)(long)(buffer+preview_offset + header->previewPageListSize), &(progressSaveUnder[0][0]));
previewTotalSectors = (imageSize-(preview_offset+header->previewSize))/512;
previewLoadedSectors = 0;
previewSaveunder = &(progressSaveUnder[0][0]);
if (preview_offset+header->previewSize<imageSize)
ReadFileAtOffset (image_filename, (char *)(long)(buffer+preview_offset+header->previewSize),
sizeof(IOHibernateImageHeader)+preview_offset+header->previewSize,
imageSize-(preview_offset+header->previewSize));
previewTotalSectors = 0;
previewLoadedSectors = 0;
previewSaveunder = 0;
#if 0
AsereBLN:
check_vga_nvidia() didn't work as expected (recursion level > 0 & return value).
Unforutnaltely I cannot find a note why to switch back to text mode for nVidia cards only
and because it check_vga_nvidia does not work (cards normally are behind a bridge) I will
remove it completely
setVideoMode( VGA_TEXT_MODE, 0 );
#endif
}
void HibernateBoot(char *image_filename)
{
long long size, imageSize, codeSize, allocSize;
long mem_base;
IOHibernateImageHeader _header;
IOHibernateImageHeader * header = &_header;
long buffer;
size = ReadFileAtOffset (image_filename, header, 0, sizeof(IOHibernateImageHeader));
printf("header read size %x\n", size);
imageSize = header->image1Size;
codeSize = header->restore1PageCount << 12;
if (kIOHibernateHeaderSignature != header->signature)
{
printf ("Incorrect image signature\n");
return;
}
if (header->encryptStart)
{
printf ("Resuming from Encrypted image is unsupported.\n"
"Uncheck \"Use secure virtual memory\" in \"Security\" pane on system preferences.\n"
"Press any key to proceed with normal boot.\n");
getc ();
return;
}
// depends on NVRAM
#if 0
{
uint32_t machineSignature;
size = GetProp(gChosenPH, kIOHibernateMachineSignatureKey,
(char *)&machineSignature, sizeof(machineSignature));
if (size != sizeof(machineSignature)) machineSignature = 0;
if (machineSignature != header->machineSignature)
break;
}
#endif
allocSize = imageSize + ((4095 + sizeof(hibernate_graphics_t)) & ~4095);
mem_base = getmemorylimit() - allocSize;//TODO: lower this
printf("mem_base %x\n", mem_base);
if (!(long long)mem_base+allocSize<1024*bootInfo->extmem+0x100000)
{
printf ("Not enough space to restore image. Press any key to proceed with normal boot.\n");
getc ();
return;
}
bcopy(header, (void *) mem_base, sizeof(IOHibernateImageHeader));
header = (IOHibernateImageHeader *) mem_base;
imageSize -= sizeof(IOHibernateImageHeader);
buffer = (long)(header + 1);
if (header->previewSize)
{
uint64_t preview_offset = header->fileExtentMapSize - sizeof(header->fileExtentMap) + codeSize;
uint8_t progressSaveUnder[kIOHibernateProgressCount][kIOHibernateProgressSaveUnderSize];
ReadFileAtOffset (image_filename, (char *)buffer, sizeof(IOHibernateImageHeader), preview_offset+header->previewSize);
drawPreview ((void *)(long)(buffer+preview_offset + header->previewPageListSize), &(progressSaveUnder[0][0]));
previewTotalSectors = (imageSize-(preview_offset+header->previewSize))/512;
previewLoadedSectors = 0;
previewSaveunder = &(progressSaveUnder[0][0]);
if (preview_offset+header->previewSize<imageSize)
ReadFileAtOffset (image_filename, (char *)(long)(buffer+preview_offset+header->previewSize),
sizeof(IOHibernateImageHeader)+preview_offset+header->previewSize,
imageSize-(preview_offset+header->previewSize));
previewTotalSectors = 0;
previewLoadedSectors = 0;
previewSaveunder = 0;
if(check_vga_nvidia(root_pci_dev) ==1 ) setVideoMode( VGA_TEXT_MODE, 0 );
}
else
ReadFileAtOffset (image_filename, (char *)buffer, sizeof(IOHibernateImageHeader), imageSize);
// Depends on NVRAM
#if 0
if (header->encryptStart) {
// decryption data
static const unsigned char first_iv[AES_BLOCK_SIZE]
= { 0xa3, 0x63, 0x65, 0xa9, 0x0b, 0x71, 0x7b, 0x1c,
0xdf, 0x9e, 0x5f, 0x32, 0xd7, 0x61, 0x63, 0xda };
hibernate_cryptvars_t _cryptvars;
hibernate_cryptvars_t * cryptvars = &_cryptvars;
aes_decrypt_key(&decryptkey,
decryptkeysize,
&cryptvars->ctx.decrypt);
// set the vector for the following decryptions
bcopy(((uint8_t *) header) + header->image1Size - AES_BLOCK_SIZE,
&cryptvars->aes_iv[0], AES_BLOCK_SIZE);
// decrypt the buffer
uint32_t len = (uint32_t)(header->image1Size - header->encryptStart);
aes_decrypt_cbc(((uint8_t *) header) + header->encryptStart,
&first_iv[0],
len >> 4,
((uint8_t *) header) + header->encryptStart,
&cryptvars->ctx.decrypt);
bzero(&cryptvars->aes_iv[0], sizeof(cryptvars));
bzero(&decryptkey, sizeof(decryptkey));
}
#endif
WakeKernel(header);
}
