Good afternoon Linux audit list,

I believe I’ve come across a bug in Linux audit when writing syscall monitors 
for a directory.

File watchers are suggested to be syscall rules under the hood. I don’t believe 
this is true, based on the different behavior of syscall rules and file watcher 
rules when monitoring directories that don’t exist.
Suggested to be equivalent per auditctl(8):-w /tmp/fakedir -p warx -k test1
-s always, exit -F dir=/tmp/fakedir -F perm=warx -k test2

What will happen if the dir doesn’t exist in case 1 is the rule loads and 
continues. In case 2, the rule will fail to load, thus failing to load all 
rules below it.

The auditctl(8)
Per the auditctl(8) man page -F (rule fields) are not supported by watchers. 
This doesn’t appear to be true any longer, as watchers do seem to honor -F 
(extensive testing not performed).

Any insight or suggestions? I am considering using a watcher with rule fields 
despite it not being officially supported due to the loading error with 
syscalls.
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