• Eric Paris's avatar
    fs/vfs/security: pass last path component to LSM on inode creation · 2a7dba39
    Eric Paris authored
    SELinux would like to implement a new labeling behavior of newly created
    inodes.  We currently label new inodes based on the parent and the creating
    process.  This new behavior would also take into account the name of the
    new object when deciding the new label.  This is not the (supposed) full path,
    just the last component of the path.
    
    This is very useful because creating /etc/shadow is different than creating
    /etc/passwd but the kernel hooks are unable to differentiate these
    operations.  We currently require that userspace realize it is doing some
    difficult operation like that and than userspace jumps through SELinux hoops
    to get things set up correctly.  This patch does not implement new
    behavior, that is obviously contained in a seperate SELinux patch, but it
    does pass the needed name down to the correct LSM hook.  If no such name
    exists it is fine to pass NULL.
    Signed-off-by: default avatarEric Paris <eparis@redhat.com>
    2a7dba39
write.c 21.3 KB