https://github.com/driusan/hammer2fs

An implementation of the hammer2 filesystem for Plan 9
https://github.com/driusan/hammer2fs

9front 9p filesystem hammer2 plan9

Last synced: 7 days ago
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An implementation of the hammer2 filesystem for Plan 9

• Host: GitHub
• URL: https://github.com/driusan/hammer2fs
• Owner: driusan
• License: mit
• Created: 2018-11-08T02:54:59.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2018-11-25T18:38:41.000Z (almost 6 years ago)
• Last Synced: 2024-08-01T13:16:34.956Z (3 months ago)
• Topics: 9front, 9p, filesystem, hammer2, plan9
• Language: C
• Size: 186 KB
• Stars: 13
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.txt
  • License: LICENSE

Awesome Lists containing this project

• awesome-9p - hammer2fs - Implementation of the hammer2 filesystem (Servers / Plan9)

README

        
# hammer2 9p

This contains a 9p implementation of the hammer2 filesystem, to make

it possible to read the DragonFly filesystem on Plan 9.  (I've only

tried it on 9front, but as far as I know I didn't do anything 9front

specific.)

The util directory contains a hacked up version of disk/prep which

installs as disk/label.  disk/label reads BSD disklabel64 labels and

outputs in a similar fashion to disk/prep -p.  You can use it as

"disk/label /dev/sdE0/bsd386 > /dev/sdE0/ctl" to see your BSD

partitions as regular files under /dev/sdE0.  (Assuming you're using a

64-bit disklabel and not the 32-bit disklabel format and your disk

partition is named sdE0.)

hammer2fs reads a hammer2 partition (by default /dev/sdE0/hammer2) and

serves it over 9p.  It posts to /srv/hammer2.  It's currently

read-only and and will likely remain read-only for the foreseeable

future.

lz4.^(c h) are a port of the basic lz4 library.  I mostly just removed

#ifdefs for other operating systems/compilers and changed the types to

be compatible with the Plan 9 compiler.  You should be able to just

copy them elsewhere and use them if you need lz4 (de)compression

support under Plan 9.

hammer2.h and hammer2_disk.h are similarly ported from DragonFly (and

mostly just have the types changed and packed pragma syntax changed.)

They contain the disk structures and documentation about the

filesystem.