NetBSD Problem Report #47816

From dyoung@whitecoralislands.com  Tue May 14 22:45:11 2013
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Date: Tue, 14 May 2013 17:45:06 -0500 (CDT)
From: dyoung@whitecoralislands.com
Reply-To: dyoung@pobox.com
To: gnats-bugs@gnats.NetBSD.org
Subject: ifmcstat grovels in kernel memory for ethercoms
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>Number:         47816
>Category:       bin
>Synopsis:       ifmcstat grovels in kernel memory for ethercoms
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue May 14 22:50:01 +0000 2013
>Last-Modified:  Sun Jun 02 00:29:53 +0000 2013
>Originator:     David Young
>Release:        NetBSD 6.0
>Organization:
David Young
dyoung@pobox.com    Urbana, IL    (217) 721-9981
>Environment:


System: NetBSD elmendorf.whitecoralislands.com 5.99.56 NetBSD 5.99.56 (modular.ojctech.com) #6: Thu Oct 27 14:56:28 CDT 2011 dyoung@skyking.ojctech.com:/home/dyoung/nbsd/i386/O/sys/arch/i386/compile/modular.ojctech.com i386
Architecture: i386
Machine: i386

/usr/sbin/ifmcstat:
	-lkvm.6 => /usr/lib/libkvm.so.6
	-lgcc_s.1 => /usr/lib/libgcc_s.so.1
	-lc.12 => /usr/lib/libc.so.12
>Description:
        ifmcstat(8) grovels in the kernel for structures like
        ethercom.  Ethercom should not be exported to userland in
        the first place, and there ought to be an interface for
        examining the multicast membership.
>How-To-Repeat:
        Read the code, or try to wrap the ethercom definition with
        #ifdef _KERNEL.
>Fix:
        Put multicast memberships into some table and/or tables
        that are shared with userland: e.g., forwarding table or
        flow table.

>Release-Note:

>Audit-Trail:
From: David Young <dyoung@pobox.com>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: bin/47816: ifmcstat grovels in kernel memory for ethercoms
Date: Tue, 14 May 2013 18:52:01 -0500

 On Tue, May 14, 2013 at 10:50:01PM +0000, dyoung@whitecoralislands.com wrote:
 > >Number:         47816
 > >Category:       bin
 > >Synopsis:       ifmcstat grovels in kernel memory for ethercoms
 > >Confidential:   no
 > >Severity:       non-critical
 > >Priority:       low
 > >Responsible:    bin-bug-people
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Tue May 14 22:50:01 +0000 2013
 > >Originator:     David Young
 > >Release:        NetBSD 6.0
 > >Organization:
 > David Young
 > dyoung@pobox.com    Urbana, IL    (217) 721-9981
 > >Environment:
 > 	
 > 	
 > System: NetBSD elmendorf.whitecoralislands.com 5.99.56 NetBSD 5.99.56 (modular.ojctech.com) #6: Thu Oct 27 14:56:28 CDT 2011 dyoung@skyking.ojctech.com:/home/dyoung/nbsd/i386/O/sys/arch/i386/compile/modular.ojctech.com i386
 > Architecture: i386
 > Machine: i386
 > 
 > /usr/sbin/ifmcstat:
 > 	-lkvm.6 => /usr/lib/libkvm.so.6
 > 	-lgcc_s.1 => /usr/lib/libgcc_s.so.1
 > 	-lc.12 => /usr/lib/libc.so.12
 > >Description:
 >         ifmcstat(8) grovels in the kernel for structures like
 >         ethercom.  Ethercom should not be exported to userland in
 >         the first place, and there ought to be an interface for
 >         examining the multicast membership.
 > >How-To-Repeat:
 >         Read the code, or try to wrap the ethercom definition with
 >         #ifdef _KERNEL.
 > >Fix:
 >         Put multicast memberships into some table and/or tables
 >         that are shared with userland: e.g., forwarding table or
 >         flow table.

 Oops, this has the wrong address on it.  Please follow-up to
 dyoung@pobox.com.

 Dave

 -- 
 David Young
 dyoung@pobox.com    Urbana, IL    (217) 721-9981

>Unformatted:

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