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Date: Mon, 12 Feb 2001 18:20:07 -0800 (PST)
From: larse@isi.edu
To: freebsd-gnats-submit@FreeBSD.org
Subject: inetd UDP echo service echos only 8K
X-Send-Pr-Version: www-1.0

>Number:         25050
>Category:       misc
>Synopsis:       inetd UDP echo service echos only 8K
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    dwmalone
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Feb 12 18:30:01 PST 2001
>Closed-Date:    Tue Jul 17 03:47:34 PDT 2001
>Last-Modified:  Tue Jul 17 03:48:15 PDT 2001
>Originator:     Lars Eggert
>Release:        4.2-RELEASE
>Organization:
>Environment:
FreeBSD hbo.isi.edu 4.2-RELEASE FreeBSD 4.2-RELEASE #0: Thu Feb  8 15:46:59 PST 2001     root@pbs.isi.edu:/usr/kame/freebsd4/sys/compile/KERNEL-1.12-KAME  i386

>Description:
The built-in echo service of inetd only echoes UDP packets up to 8K
in length. This is not really in conformance with RFC862, which
specifies no such length limit (ftp://ftp.isi.edu/in-notes/rfc862.txt):

UDP Based Echo Service

   Another echo service is defined as a datagram based application on
   UDP.  A server listens for UDP datagrams on UDP port 7.  When a
   datagram is received, the data from it is sent back in an answering
   datagram.

>How-To-Repeat:

>Fix:
Index: inetd.h
===================================================================
RCS file: /home/xbone/CVSROOT/kame/freebsd4/usr.sbin/inetd/inetd.h,v
retrieving revision 1.1
diff -u -r1.1 inetd.h
--- inetd.h     2001/02/09 20:21:07     1.1
+++ inetd.h     2001/02/13 02:17:35
@@ -39,8 +39,11 @@
 #include <netinet/in.h>
 
 #include <stdio.h>
+#include <sys/types.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
 
-#define BUFSIZE 8192
+#define BUFSIZE IP_MAXPACKET
 #define LINESIZ 72
 
 #define NORM_TYPE      0


>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->dwmalone 
Responsible-Changed-By: dwmalone 
Responsible-Changed-When: Tue Feb 13 03:34:56 PST 2001 
Responsible-Changed-Why:  
I'll have a look at this. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=25050 

From: Lars Eggert <larse@ISI.EDU>
To: freebsd-gnats-submit@FreeBSD.org, larse@ISI.EDU
Cc:  
Subject: Re: misc/25050: inetd UDP echo service echos only 8K
Date: Tue, 13 Feb 2001 09:40:25 -0800

 This is a cryptographically signed message in MIME format.
 
 --------------ms82F5176572959A52C3A52497
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 Please let me clarify "only echoes UDP packets up to 8K in length" -
 slopppy description on my part. What I meant was: only echos a maximum of
 8K of data for each packet.
 -- 
 Lars Eggert <larse@isi.edu>                 Information Sciences Institute
 http://www.isi.edu/larse/                University of Southern California
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 --------------ms82F5176572959A52C3A52497--
 
 
State-Changed-From-To: open->closed 
State-Changed-By: dwmalone 
State-Changed-When: Tue Jul 17 03:47:34 PDT 2001 
State-Changed-Why:  
Issue addressed in -current and -stable. May need further thought in the 
furture though. 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=25050 
>Unformatted:
