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magic/Magdir/gpt
237 строк
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Christos Zoulas
Fix typos (fxlb)
12 дек 2020, 23:01
12 дек 2020, 23:01
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#------------------------------------------------------------------------------ # $File: gpt,v 1.5 2020/12/12 20:01:47 christos Exp $ # # GPT Partition table patterns. # Author: Rogier Goossens (goossens.rogier@gmail.com) # Note that a GPT-formatted disk must contain an MBR as well. # # The initial segment (up to >>>>>>>>422) was copied from the X86 # partition table code (aka MBR). # This is kept separate, so that MBR partitions are not reported as well. # (use -k if you do want them as well) # First, detect the MBR partition table # If more than one GPT protective MBR partition exists, don't print anything # (the other MBR detection code will then just print the MBR partition table) 0x1FE leshort 0xAA55 >3 string !MS >>3 string !SYSLINUX >>>3 string !MTOOL >>>>3 string !NEWLDR >>>>>5 string !DOS # not FAT (32 bit) >>>>>>82 string !FAT32 #not Linux kernel >>>>>>>514 string !HdrS #not BeOS >>>>>>>>422 string !Be\ Boot\ Loader # GPT with protective MBR entry in partition 1 (only) >>>>>>>>>450 ubyte 0xee >>>>>>>>>>466 ubyte !0xee >>>>>>>>>>>482 ubyte !0xee >>>>>>>>>>>>498 ubyte !0xee #>>>>>>>>>>>>>446 use gpt-mbr-partition >>>>>>>>>>>>>(454.l*8192) string EFI\ PART GPT partition table >>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>0 ubyte x of 8192 bytes >>>>>>>>>>>>>(454.l*8192) string !EFI\ PART >>>>>>>>>>>>>>(454.l*4096) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>0 ubyte x of 4096 bytes >>>>>>>>>>>>>>(454.l*4096) string !EFI\ PART >>>>>>>>>>>>>>>(454.l*2048) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>0 ubyte x of 2048 bytes >>>>>>>>>>>>>>>(454.l*2048) string !EFI\ PART >>>>>>>>>>>>>>>>(454.l*1024) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>0 ubyte x of 1024 bytes >>>>>>>>>>>>>>>>(454.l*1024) string !EFI\ PART >>>>>>>>>>>>>>>>>(454.l*512) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>>0 ubyte x of 512 bytes # GPT with protective MBR entry in partition 2 (only) >>>>>>>>>450 ubyte !0xee >>>>>>>>>>466 ubyte 0xee >>>>>>>>>>>482 ubyte !0xee >>>>>>>>>>>>498 ubyte !0xee #>>>>>>>>>>>>>462 use gpt-mbr-partition >>>>>>>>>>>>>(470.l*8192) string EFI\ PART GPT partition table >>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>0 ubyte x of 8192 bytes >>>>>>>>>>>>>(470.l*8192) string !EFI\ PART >>>>>>>>>>>>>>(470.l*4096) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>0 ubyte x of 4096 bytes >>>>>>>>>>>>>>(470.l*4096) string !EFI\ PART >>>>>>>>>>>>>>>(470.l*2048) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>0 ubyte x of 2048 bytes >>>>>>>>>>>>>>>(470.l*2048) string !EFI\ PART >>>>>>>>>>>>>>>>(470.l*1024) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>0 ubyte x of 1024 bytes >>>>>>>>>>>>>>>>(470.l*1024) string !EFI\ PART >>>>>>>>>>>>>>>>>(470.l*512) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>>0 ubyte x of 512 bytes # GPT with protective MBR entry in partition 3 (only) >>>>>>>>>450 ubyte !0xee >>>>>>>>>>466 ubyte !0xee >>>>>>>>>>>482 ubyte 0xee >>>>>>>>>>>>498 ubyte !0xee #>>>>>>>>>>>>>478 use gpt-mbr-partition >>>>>>>>>>>>>(486.l*8192) string EFI\ PART GPT partition table >>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>0 ubyte x of 8192 bytes >>>>>>>>>>>>>(486.l*8192) string !EFI\ PART >>>>>>>>>>>>>>(486.l*4096) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>0 ubyte x of 4096 bytes >>>>>>>>>>>>>>(486.l*4096) string !EFI\ PART >>>>>>>>>>>>>>>(486.l*2048) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>0 ubyte x of 2048 bytes >>>>>>>>>>>>>>>(486.l*2048) string !EFI\ PART >>>>>>>>>>>>>>>>(486.l*1024) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>0 ubyte x of 1024 bytes >>>>>>>>>>>>>>>>(486.l*1024) string !EFI\ PART >>>>>>>>>>>>>>>>>(486.l*512) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>>0 ubyte x of 512 bytes # GPT with protective MBR entry in partition 4 (only) >>>>>>>>>450 ubyte !0xee >>>>>>>>>>466 ubyte !0xee >>>>>>>>>>>482 ubyte !0xee >>>>>>>>>>>>498 ubyte 0xee #>>>>>>>>>>>>>494 use gpt-mbr-partition >>>>>>>>>>>>>(502.l*8192) string EFI\ PART GPT partition table >>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>0 ubyte x of 8192 bytes >>>>>>>>>>>>>(502.l*8192) string !EFI\ PART >>>>>>>>>>>>>>(502.l*4096) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>0 ubyte x of 4096 bytes >>>>>>>>>>>>>>(502.l*4096) string !EFI\ PART >>>>>>>>>>>>>>>(502.l*2048) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>0 ubyte x of 2048 bytes >>>>>>>>>>>>>>>(502.l*2048) string !EFI\ PART >>>>>>>>>>>>>>>>(502.l*1024) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>0 ubyte x of 1024 bytes >>>>>>>>>>>>>>>>(502.l*1024) string !EFI\ PART >>>>>>>>>>>>>>>>>(502.l*512) string EFI\ PART GPT partition table >>>>>>>>>>>>>>>>>>0 use gpt-mbr-type >>>>>>>>>>>>>>>>>>&-8 use gpt-table >>>>>>>>>>>>>>>>>>0 ubyte x of 512 bytes # The following code does GPT detection and processing, including # sector size detection. # It has to be duplicated above because the top-level pattern # (i.e. not called using 'use') must print *something* for file # to count it as a match. Text only printed in named patterns is # not counted, and causes file to continue, and try and match # other patterns. # # Unfortunately, when assuming sector sizes >=16k, if the sector size # happens to be 512 instead, we may find confusing data after the GPT # table... If the GPT table has less than 128 entries, this may even # happen for assumed sector sizes as small as 4k # This could be solved by checking for the presence of the backup GPT # header as well, but that makes the logic extremely complex ##0 name gpt-mbr-partition ##>(8.l*8192) string EFI\ PART ##>>(8.l*8192) use gpt-mbr-type ##>>&-8 use gpt-table ##>>0 ubyte x of 8192 bytes ##>(8.l*8192) string !EFI\ PART ##>>(8.l*4096) string EFI\ PART GPT partition table ##>>>0 use gpt-mbr-type ##>>>&-8 use gpt-table ##>>>0 ubyte x of 4096 bytes ##>>(8.l*4096) string !EFI\ PART ##>>>(8.l*2048) string EFI\ PART GPT partition table ##>>>>0 use gpt-mbr-type ##>>>>&-8 use gpt-table ##>>>>0 ubyte x of 2048 bytes ##>>>(8.l*2048) string !EFI\ PART ##>>>>(8.l*1024) string EFI\ PART GPT partition table ##>>>>>0 use gpt-mbr-type ##>>>>>&-8 use gpt-table ##>>>>>0 ubyte x of 1024 bytes ##>>>>(8.l*1024) string !EFI\ PART ##>>>>>(8.l*512) string EFI\ PART GPT partition table ##>>>>>>0 use gpt-mbr-type ##>>>>>>&-8 use gpt-table ##>>>>>>0 ubyte x of 512 bytes # Print details of MBR type for a GPT-disk # Calling code ensures that there is only one 0xee partition. 0 name gpt-mbr-type # GPT with protective MBR entry in partition 1 >450 ubyte 0xee >>454 ulelong 1 >>>462 string !\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \b (with hybrid MBR) >>454 ulelong !1 \b (nonstandard: not at LBA 1) # GPT with protective MBR entry in partition 2 >466 ubyte 0xee >>470 ulelong 1 >>>478 string \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 >>>>446 string !\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \b (with hybrid MBR) >>>478 string !\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \b (with hybrid MBR) >>470 ulelong !1 \b (nonstandard: not at LBA 1) # GPT with protective MBR entry in partition 3 >482 ubyte 0xee >>486 ulelong 1 >>>494 string \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 >>>>446 string !\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \b (with hybrid MBR) >>>494 string !\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \b (with hybrid MBR) >>486 ulelong !1 \b (nonstandard: not at LBA 1) # GPT with protective MBR entry in partition 4 >498 ubyte 0xee >>502 ulelong 1 >>>446 string !\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0 \b (with hybrid MBR) >>502 ulelong !1 \b (nonstandard: not at LBA 1) # Print the information from a GPT partition table structure 0 name gpt-table >10 uleshort x \b, version %u >8 uleshort x \b.%u >56 ulelong x \b, GUID: %08x >60 uleshort x \b-%04x >62 uleshort x \b-%04x >64 ubeshort x \b-%04x >66 ubeshort x \b-%04x >68 ubelong x \b%08x #>80 uleshort x \b, %d partition entries >32 ulequad+1 x \b, disk size: %lld sectors # In case a GPT data-structure is at LBA 0, report it as well # This covers systems which are not GPT-aware, and which show # and allow access to the protective partition. This code will # detect the contents of such a partition. 0 string EFI\ PART GPT data structure (nonstandard: at LBA 0) >0 use gpt-table >0 ubyte x (sector size unknown)