Date: Tue, 13 Jan 1998 17:16:52 -0800 (PST) From: Archie Cobbs <archie@whistle.com> To: perhaps@yes.no (Eivind Eklund) Cc: dennis@etinc.com, tom@sdf.com, jamie@itribe.net, hackers@FreeBSD.ORG Subject: Re: FreeBSD Netcards Message-ID: <199801140116.RAA06492@bubba.whistle.com> In-Reply-To: <86iurpz82n.fsf@bitbox.follo.net> from Eivind Eklund at "Jan 12, 98 10:38:40 pm"
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Eivind Eklund writes: > > > This is raw socket stuff is interesting. Example source please. I > > >don't believe this problem exists anymore. I know that Julian fixed > > >problems with routing sockets. As a side point, routing sockets and raw > > >sockets can only be accessed by root processes. > > > > Just look in raw_usrreq(). the default case is a panic. > > Fixed in revision 1.12 as of April 27, 1997. > > Do you have anything else? (I don't think any of us want panic()s to > occur for userland errors, though I think they often are the correct > path for a kernel error.) I don't know if this one still exists, but it used to be that you could set the MTU of an interface to zero, and then cause a kernel divide-by-zero panic by sending a packet out of it. In the case I saw, it was using the TUNSIFINFO ioctl() on the tunnel interface. -Archie ___________________________________________________________________________ Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com
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