Date: Thu, 26 Feb 2009 10:57:13 +0000 (GMT) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r189063 - head/sys/kern Message-ID: <alpine.BSF.2.00.0902261056280.16988@fledge.watson.org> In-Reply-To: <200902261056.n1QAuDTL025375@svn.freebsd.org> References: <200902261056.n1QAuDTL025375@svn.freebsd.org>
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On Thu, 26 Feb 2009, Robert Watson wrote:
> Log:
> Add static tracing for privilege checking:
>
> priv:kernel:priv_check:priv_ok fires for granted privileges
> priv:kernel:priv_check:priv_errr fires for denied privileges
>
> The first argument is the requested privilege number. The naming
> convention is a little different from the OpenSolaris equivilent
> because we can't have '-' in probefunc names, and our privilege
> namespace is different.
A typical tracing command might be:
dtrace -n 'priv:::priv_ok { trace(execname); trace(arg0);}'
arg0 requires manual interpretation using /usr/include/sys/priv.h.
Robert N M Watson
Computer Laboratory
University of Cambridge
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