[Libguestfs] [PATCH] tar-in: Add workaround because tar doesn't restore capabilities (RHBZ#1384241).
Current GNU tar does not restore all extended attributes. In
particular only user.* capabilities are restored (although all
are saved in the tarball).
To restore capabilities, SELinux security attributes, and other things
we need to use --xattrs-include=*
For further information on the tar bug, see:
https://bugzilla.redhat.com/show_bug.cgi?id=771927
---
daemon/tar.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/daemon/tar.c b/daemon/tar.c
index c5d9524..2ebd2fe 100644
--- a/daemon/tar.c
+++ b/daemon/tar.c
@@ -190,7 +190,11 @@ do_tar_in (const char *dir, const char *compress, int xattrs, int
selinux, int a
str_tar,
dir, filter,
chown_supported ? "" : "--no-same-owner ",
- xattrs ? "--xattrs " : "",
+ /* --xattrs-include=* is a workaround for a bug
+ * in tar, and hopefully won't be required
+ * forever. See RHBZ#771927.
+ */
+ xattrs ? "--xattrs --xattrs-include='*' " :
"",
selinux ? "--selinux " : "",
acls ? "--acls " : "",
error_file) == -1) {
--
2.9.3