Date: Tue, 22 May 2007 20:06:48 +0200 From: Joerg Sonnenberger <joerg@britannica.bec.de> To: freebsd-hackers@freebsd.org Subject: Re: kqueue implementation Message-ID: <20070522180647.GA11365@britannica.bec.de> In-Reply-To: <23B4A664-5916-47D3-8D42-282817F6CC70@FreeBSD.org> References: <200705201831.38828.dmw@unete.cl> <20070521075757.GG4602@funkthat.com> <200705210948.36033.dmw@unete.cl> <23B4A664-5916-47D3-8D42-282817F6CC70@FreeBSD.org>
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On Tue, May 22, 2007 at 10:04:37AM -0700, Suleiman Souhlal wrote: > >I mean vnode events, in the manual page I see NOTE_WRITE, but I > >need NOTE_OPEN and NOTE_READ. Is there any chance to get these > >kind of events? > > They should be easy to add.. All you would need to do for NOTE_OPEN > would be to add a vop_open_post hook to VOP_OPEN that calls > VFS_KNOTE_LOCKED(..., NOTE_OPEN). Similarly for read. If this is done, it should be done very carefully. There are some non-trivial security implications by this, for example the process hiding can be at least partly circumvented by adding a open filter on rtld or libc.so. Joerg
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