Commit Graph

13 Commits

Author SHA1 Message Date
Sebastian Lackner
5055f39bd5 fusefrontend: Allow to set/remove xattr on directory without read permission.
Setting/removing extended attributes on directories was partially fixed with
commit eff35e60b6. However, on most file systems
it is also possible to do these operations without read access (see tests).

Since we cannot open a write-access fd to a directory, we have to use the
/proc/self/fd trick (already used for ListXAttr) for the other operations aswell.
For simplicity, let's separate the Linux and Darwin code again (basically revert
commit f320b76fd1), and always use the
/proc/self/fd trick on Linux. On Darwin we use the best-effort approach with
openBackingFile() as a fallback.

More discussion about the available options is available in
https://github.com/rfjakob/gocryptfs/issues/308.
2019-01-05 12:34:40 +01:00
Jakob Unterwurzacher
eff35e60b6 fusefrontend: fix setting xattrs on directories
Directories cannot be opened read-write. Retry with RDONLY.
2019-01-04 22:22:24 +01:00
Jakob Unterwurzacher
d269c28d16 tests: xattr: set on 0200 file, list on 0000 file
https://github.com/rfjakob/gocryptfs/issues/308
2019-01-02 20:45:55 +01:00
Jakob Unterwurzacher
55a27a47df tests: better error message for TestBase64XattrRead
Make clear what we have and what we want.
2019-01-02 16:55:51 +01:00
Jakob Unterwurzacher
60e7a0ca9f fusefrontend: xattr: fix hang on FIFOs
An Open() a fifo blocks until it is opened for writing.
This meant that xattr operations on FIFOs would block.
Pass O_NONBLOCK to fix that, and add a test.
2019-01-01 16:24:25 +01:00
Jakob Unterwurzacher
b97d7d1d33 tests: add Flistxattr/Fgetxattr/Fremovexattr tests
Test for the upcoming fd-based xattr support.
2019-01-01 16:24:25 +01:00
Jakob Unterwurzacher
5a1ebdb4f7 tests: respect TMPDIR if set
Setting TMPDIR now allows to run the tests against
a directory of your choice, making it easier to test
different filesystems.
2018-10-10 22:24:20 +02:00
Jakob Unterwurzacher
ae02ca1ded xattr: use LGet/LSet etc
Support has been merged into the xattr package
( https://github.com/pkg/xattr/pull/29 ), use it.
2018-05-27 20:09:48 +02:00
Bolshevik
a41ec2028c xattr: optimize storage, store as binary instead of bae64
Values a binary-safe, there is no need to base64-encode them.

Old, base64-encoded values are supported transparently
on reading. Writing xattr values now always writes them binary.
2018-05-10 23:25:49 +02:00
Jakob Unterwurzacher
1a3d04ab87 Switch from private copy to pkg/xattr
Now that https://github.com/pkg/xattr/pull/24
has been merged there is no reason to keep
our private copy.

Switch to the upstream version.
2018-03-28 19:19:58 +02:00
Jakob Unterwurzacher
b1f362d28a tests: replace xattr.Supported
This function has been deprecated by the pkg/xattr
upstream, so write our own.
2018-03-26 21:54:17 +02:00
Jakob Unterwurzacher
db778aae7d fusefrontend: handle empty xattrs efficiently
We handle empty files by storing an actual empty file
on disk. Handle xattrs similarily and encrypt the
empty value to the empty value.
2018-03-25 21:06:10 +02:00
Jakob Unterwurzacher
1ed3d51df1 fusefrontend: add xattr support
At the moment, only for reverse mode.

https://github.com/rfjakob/gocryptfs/issues/217
2018-03-25 21:06:10 +02:00