Date: Sat, 16 Dec 2000 12:41:46 -0500 (EST) From: Robert Watson <rwatson@FreeBSD.org> To: John Baldwin <jhb@FreeBSD.org> Cc: smp@FreeBSD.org Subject: Re: cvs commit: src/sys/sys proc.h Message-ID: <Pine.NEB.3.96L.1001216123826.30174C-100000@fledge.watson.org> In-Reply-To: <200012150010.eBF0AX468476@freefall.freebsd.org>
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BTW, I don't know if you've had a chance to look at individual process locking in kern_proc.c yet, but if so then the sysctl code to retrieve process info will need some of the same work during kproc_info extraction (protecting pcred, etc). Also, p_can* will have to assume that the process mutexes for p1 and p2 are both already held (so as to avoid recursion issues), so callers of p_can (especially in procfs and signalling code) will need to reflect that assumption. We should grep through for any direct references to p_cred throughout the tree, and where possible eliminate them by improving authorization abstractions (if I missed any inter-process calls), and where not, make sure they're properly protected and documented (get/set-uid calls, sysctl, etc). Robert N M Watson FreeBSD Core Team, TrustedBSD Project robert@fledge.watson.org NAI Labs, Safeport Network Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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