64 lines
2.2 KiB
Plaintext
64 lines
2.2 KiB
Plaintext
From 27ec95a88943d858433a492940c694bac4bc54d0 Mon Sep 17 00:00:00 2001
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From: Jeff Mahoney <jeffm@jeffm.io>
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Date: Thu, 20 Oct 2016 11:29:21 -0400
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Subject: [PATCH] Add BTRFS Filesystem Metadata Image
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Patch-mainline: Submitted to file@mx.gw.com, 20 Oct 2016
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The btrfs-image in its uncompressed form contains a directly usable
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superblock. Rather than duplicate the superblock printer, split
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that out and use it with both the on-disk superblock and the ones
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contained within the image.
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---
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magic/Magdir/filesystems | 37 +++++++++++++++++++++++--------------
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1 file changed, 23 insertions(+), 14 deletions(-)
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Index: file-5.43/magic/Magdir/filesystems
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===================================================================
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--- file-5.43.orig/magic/Magdir/filesystems
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+++ file-5.43/magic/Magdir/filesystems
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@@ -2257,20 +2257,29 @@
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>>0x10060 string >\0 lockproto %s)
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# Russell Coker <russell@coker.com.au>
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-0x10040 string _BHRfS_M BTRFS Filesystem
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->0x1012b string >\0 label "%s",
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->0x10090 lelong x sectorsize %d,
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->0x10094 lelong x nodesize %d,
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->0x10098 lelong x leafsize %d,
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->0x10020 ubelong x UUID=%08x-
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->0x10024 ubeshort x \b%04x-
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->0x10026 ubeshort x \b%04x-
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->0x10028 ubeshort x \b%04x-
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->0x1002a ubeshort x \b%04x
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->0x1002c ubelong x \b%08x,
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->0x10078 lequad x %lld/
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->0x10070 lequad x \b%lld bytes used,
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->0x10088 lequad x %lld devices
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+0x10040 string _BHRfS_M
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+>0x10000 use btrfs_super_block
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+0 name btrfs_super_block
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+>0x40 string _BHRfS_M BTRFS Filesystem
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+>0x12b string >\0 label "%s",
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+>0x90 lelong x sectorsize %d,
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+>0x94 lelong x nodesize %d,
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+>0x98 lelong x leafsize %d,
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+>0x20 ubelong x UUID=%08x-
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+>0x24 ubeshort x \b%04x-
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+>0x26 ubeshort x \b%04x-
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+>0x28 ubeshort x \b%04x-
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+>0x2a ubeshort x \b%04x
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+>0x2c ubelong x \b%08x,
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+>0x78 lequad x %lld/
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+>0x70 lequad x \b%lld bytes used,
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+>0x88 lequad x %lld devices
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+
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+0 lequad 0xbd5c25e27295668b BTRFS Filesystem Metadata Image
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+>20 byte 1 \b, zlib compressed
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+>20 byte 0 \b, uncompressed
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+>>0x440 string _BHRfS_M \b, contains
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+>>>0x400 use btrfs_super_block
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0 string btrfs-stream BTRFS stream file
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