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Source scanner detects LVM in extended partition #578

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joachimmetz opened this issue Jun 6, 2021 · 1 comment
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Source scanner detects LVM in extended partition #578

joachimmetz opened this issue Jun 6, 2021 · 1 comment
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joachimmetz commented Jun 6, 2021 •
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Source scanner detects LVM in extended partition

mmls fuse/qcow1 

DOS Partition Table
Offset Sector: 0
Units are in 512-byte sectors

      Slot      Start        End          Length       Description
000:  Meta      0000000000   0000000000   0000000001   Primary Table (#0)
001:  -------   0000000000   0000002047   0000002048   Unallocated
002:  000:000   0000002048   0000499711   0000497664   Linux (0x83)
003:  -------   0000499712   0000501759   0000002048   Unallocated
004:  Meta      0000501758   0033552383   0033050626   DOS Extended (0x05)
005:  Meta      0000501758   0000501758   0000000001   Extended Table (#1)
006:  001:000   0000501760   0033552383   0033050624   Linux Logical Volume Manager (0x8e)
007:  -------   0033552384   0033554431   0000002048   Unallocated

Since pytsk returns slots instead of partitions, this causes the analyzer to detect the LVM signature in the Extended partition. Which then cause resolver.Resolver.OpenFileEntry to raise BackEndError in

dfvfs/dfvfs/helpers/source_scanner.py

Line 623 in 04f386c

file_entry = resolver.Resolver.OpenFileEntry(

@joachimmetz joachimmetz self-assigned this Jun 6, 2021
@joachimmetz joachimmetz changed the title Volume scanner detects LVM in extended partition Source scanner detects LVM in extended partition Jun 6, 2021
joachimmetz added a commit to joachimmetz/dfvfs that referenced this issue Jun 6, 2021
@joachimmetz
Changes to source scanner to handle LVM in extended partition log2tim…
376cac2 
…eline#578
joachimmetz added a commit to joachimmetz/dfvfs that referenced this issue Jun 6, 2021
@joachimmetz
Changes to source scanner to handle LVM in extended partition log2tim…
c75c05f 
…eline#578
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Changes in #579

joachimmetz added a commit that referenced this issue Jun 6, 2021
@joachimmetz
Changes to source scanner to handle LVM in extended partition #578 (#579
1c7a87e 
)
@joachimmetz joachimmetz mentioned this issue Jun 6, 2021
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@joachimmetz joachimmetz mentioned this issue Sep 2, 2022
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