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Old 12-02-2007, 01:59 PM
"Simon Guilhot"
Default Meta-data in Ext3

Hi to everyone,
I have a student projet quite interessting and
quite hard and the informations found on internet*about the ext3 aren't
relevant. That's why I recquire you're help.
My aim is to add some métadatas to my files (like
public,Private, draft*... the list must be extensible) and have the
possibility to display it with the commands*line (ls, rm,
There is lots of ways to do that. The more
appropriate is,*for me, to implement it directly in the i-node of the Ext3
(more easy in ext2 ?).
Concretly I see it like that (I'm probably
The standard i-node contain informations like
Creation/modification dates, rights, number of links ... and I wanted to add a
field string (or some bytes, its the same)*where i could put my
Of course the system won't be bootable (and wont be
Here is a representation :
st_ino|st_alloc|st_uid|st_gid|st_mtime|st_atime|st _ctime|st_mode|st_nlink|st_size|st_block0|st_block 1
1|a|0|0|1151770448|1151770448|1151770448|0|0|0|0|0 |MY_FIELD
2|a|0|0|1151770448|1151770448|1151770448|40755|3|1 024|201|0|MY_FIELD
Course, I'm maybe dreaming, it's probably very
hard, but*it's interesting to ask to someone more experienced.
Forgive me for my english.
Guilhot Simon
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