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Re: [RFC][PATCH] (#6) filesystem auditing

On Tuesday 15 March 2005 12:11 pm, Stephen Smalley wrote:
> On Tue, 2005-03-15 at 11:51 -0600, Timothy R. Chavez wrote:
> > Hmmm,
> >
> > I'm getting this now too:
> >
> > ./auditctl -w /audit/foo
> >
> > Error sending netlink packet (Connection refused)
> Hmmm...that isn't what I get.  With a patched 2.6.11 kernel and 0.6.7
> auditctl, I see:
> # ./auditctl -w /etc/shadow
> Error sending netlink packet (Invalid argument)
> Error sending rule to kernel
> # ./auditctl -e 1
> AUDIT_STATUS: enabled=1 flag=1 pid=0 rate_limit=0 backlog_limit=64
> lost=0 backlog=0
> I added printks to the kernel audit code, and I see them when I do the
> auditctl -e, but not when I try the auditctl -w, so it seems like it
> isn't even reaching audit_receive(), i.e. malformed netlink packet?


Haha.  I forgot I compiled my kernel without audit enabled / audit syscall 
enabled, to make sure it compiled.. so :) I'm just dumb and I'm not sure 
there's a patch available to correct that.

Anyway, Invalid argument, hmmm.  If it's not dying at audit_netlink_ok() 
(which will return back an err = -EINVAL), then you should be getting to 
audit_receive_watch() -- if you print out the values of 
audit_watch->name/filterkey/path from audit_insert_watch, that might clue us 
in.  I have a feeling that someone how the memset(&watch, 0, sizeof(watch)) 
that was once in reset_vars() (in auditctl.c) has escaped some how and your 
passing in a perm equal to some rediculous value (bigger then 15) because it 
was not intialized to 0.  Perhaps?


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