What is add_file?

[troudee]

I am struggling with understanding the ACL permission add_file of ZFS.

This page (and all others that I've found so far) lists the add_file ACL access privilege as "Permission to add a new file to a directory."

Does "adding" a file to a directory only include the file as empty file, or could "adding" include actual content of the file?

For example, when a user only has the add_file permission in the directory /archives, can he/she only do

Code:

touch /archives/thisFileSurelyDoesNotExistYet-380989.txt

? Or would it be allowed to create a file with content as well, like echoing to a new file

Code:

echo "Hello, this is my file, and I cannot do anything with it after I created it, cool huh?" > /archives/newFile-423122.txt

or copying

Code:

cp /home/troudee/current-testament.txt /archives/testament-2020-01-01.txt

?

 

[Alecmascot]

why don't you test this ?

 

[troudee]

why don't you test this ?

I do not have an installation yet, only an mfsbsd live cd, and somehow I cannot even set that ACL.
Do you happen to have a link where setfacl under FreeBSD on ZFS is described? (Or anything else but setfacl; on some pages I saw chmod, but that chokes on all of my tries as well)

 

[troudee]

Wait a second, is the permission add_file even implemented in FreeBSD's ZFS?