Date: Mon, 1 Apr 2002 20:32:25 -0500 From: Chris Ptacek <cptacek@sitaranetworks.com> To: "'Julian Elischer'" <julian@elischer.org>, Chris Ptacek <cptacek@sitaranetworks.com> Cc: "'freebsd-hackers@FreeBSD.ORG'" <freebsd-hackers@FreeBSD.ORG> Subject: RE: Adding to the mbuf header... Message-ID: <31269226357BD211979E00A0C9866DAB02BB9866@rios.sitaranetworks.com>
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Here are the diffs for the mbuf changes I am trying... #diff -c mbuf.h mbuf.h.new *** mbuf.h Mon Apr 1 17:27:33 2002 --- mbuf.h.new Mon Apr 1 17:27:17 2002 *************** *** 79,84 **** --- 79,87 ---- struct ifnet *rcvif; /* rcv interface */ int len; /* total packet length */ + /* Add field to track flow information */ + void *flow_info; + /* variables for ip and tcp reassembly */ void *header; /* pointer to packet header */ }; *************** *** 114,119 **** --- 117,123 ---- #define m_nextpkt m_hdr.mh_nextpkt #define m_act m_nextpkt #define m_pkthdr M_dat.MH.MH_pkthdr + #define m_flow_info M_dat.MH.MH_pkthdr.flow_info #define m_ext M_dat.MH.MH_dat.MH_ext #define m_pktdat M_dat.MH.MH_dat.MH_databuf #define m_dat M_dat.M_databuf - Chris > -----Original Message----- > From: Julian Elischer [mailto:julian@elischer.org] > Sent: Friday, March 29, 2002 9:44 PM > To: Chris Ptacek > Cc: 'freebsd-hackers@FreeBSD.ORG' > Subject: Re: Adding to the mbuf header... > > > send your diff to mbuf.h > > > On Fri, 29 Mar 2002, Chris Ptacek wrote: > > > I am working on a project using FreeBSD 3.2 (part of the > requirements). > > As part of this project I would like to add a field to the > mbuf header to > > store some information. I have added the field, however I > get an occasional > > core when trying to free an mbuf. It appears that the next > field is getting > > overwritten with some garbage and a free, etc that tries to > access this > > field is coring. I noticed that in FreeBSD 4.X this some > fields were added > > to the mbuf header. I was hoping someone would be able to > point me in the > > direction of the files/functions I should look at to solve > my problem. > > > > - Chris > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-hackers" in the body of the message > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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