• Al Viro's avatar
    [PATCH] audit: watching subtrees · 74c3cbe3
    Al Viro authored
    
    
    New kind of audit rule predicates: "object is visible in given subtree".
    The part that can be sanely implemented, that is.  Limitations:
    	* if you have hardlink from outside of tree, you'd better watch
    it too (or just watch the object itself, obviously)
    	* if you mount something under a watched tree, tell audit
    that new chunk should be added to watched subtrees
    	* if you umount something in a watched tree and it's still mounted
    elsewhere, you will get matches on events happening there.  New command
    tells audit to recalculate the trees, trimming such sources of false
    positives.
    
    Note that it's _not_ about path - if something mounted in several places
    (multiple mount, bindings, different namespaces, etc.), the match does
    _not_ depend on which one we are using for access.
    Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
    74c3cbe3
auditsc.c 57 KB