Commit Graph

8 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
f320b76fd1 fusefrontend: use Fsetxattr/Fgetxattr/etc on all platforms
Darwin now also has these functions, use them. Simplifies
the code and makes it symlink-safe on Darwin as well.
2019-01-02 16:58:48 +01:00
Jakob Unterwurzacher
1d5500c3db fusefrontend: only compile getBackingPath() on Darwin
This function is NOT symlink-safe. Darwin needs it because it lacks
fgetxattr(2) and friends.
2019-01-01 16:24:25 +01:00
Jakob Unterwurzacher
c3adf9729d fusefrontend: make ListXAttr symlink-safe on Linux
Uses /proc/self/fd.
2019-01-01 16:24:25 +01:00
Jakob Unterwurzacher
d3ae87fa2b fusefrontend: make RemoveXAttr() symlink-safe
Uses /proc/self/fd on Linux.
2019-01-01 16:24:25 +01:00
Jakob Unterwurzacher
810d2a8b47 fusefrontend: make SetXAttr() symlink-safe on Linux
Uses the /proc/self/fd trick.
2019-01-01 16:24:25 +01:00
Jakob Unterwurzacher
2286372603 fusefrontend: make GetXAttr() symlink-safe on Linux
Uses the /proc/self/fd trick, which does not work
on Darwin.
2019-01-01 16:24:25 +01:00
Bolshevik
5ccc06d5cb xattr: added passing of a "flags" parameter
Pass the "flags" parameter to the lower layer syscall.
This makes Apple applications being able to successfully save data.
2018-05-07 21:45:40 +02:00