diff options
| author | Ludwig Nussel <ludwig.nussel@suse.de> | 2011-02-28 17:57:17 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-20 03:45:51 +0400 |
| commit | 088ab0b4d855d68a0f0c16b72fb8e492a533aaa1 (patch) | |
| tree | 7ca0a26573e074ff754b56eaeeb18467fbcc9926 /Documentation | |
| parent | aed65af1cc2f6fc9ded5a8158f1405a02cf6d2ff (diff) | |
| download | linux-088ab0b4d855d68a0f0c16b72fb8e492a533aaa1.tar.xz | |
kernel/ksysfs.c: expose file_caps_enabled in sysfs
A kernel booted with no_file_caps allows to install fscaps on a binary
but doesn't actually honor the fscaps when running the binary. Userspace
currently has no sane way to determine whether installing fscaps
actually has any effect. Since parsing /proc/cmdline is fragile this
patch exposes the current setting (1 or 0) via /sys/kernel/fscaps
Signed-off-by: Ludwig Nussel <ludwig.nussel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-kernel-fscaps | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-kernel-fscaps b/Documentation/ABI/testing/sysfs-kernel-fscaps new file mode 100644 index 000000000000..50a3033b5e15 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-kernel-fscaps @@ -0,0 +1,8 @@ +What: /sys/kernel/fscaps +Date: February 2011 +KernelVersion: 2.6.38 +Contact: Ludwig Nussel <ludwig.nussel@suse.de> +Description + Shows whether file system capabilities are honored + when executing a binary + |