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set MTU on tunnel interface so the kernel will re-fragment large packets to within MRU

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bodea 2005-11-17 07:35:35 +00:00
parent 2dd8d794c9
commit 4bbf91e608
4 changed files with 19 additions and 6 deletions
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6
Changes
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@ -1,3 +1,9 @@
* Thu Nov 17 2005 Brendan O'Dea <bod@optus.net> 2.1.12
- Set MTU on tunnel interface so the kernel will re-fragment large
packets to within MRU.
- Fix TCP checksum recalc.
- NAK silly MRU values for peer.
* Mon Nov 14 2005 Brendan O'Dea <bod@optus.net> 2.1.11 * Mon Nov 14 2005 Brendan O'Dea <bod@optus.net> 2.1.11
- Fix fragment handling in ip_filter. - Fix fragment handling in ip_filter.
- Exclude counter when comparing filter rules. - Exclude counter when comparing filter rules.

9
l2tpns.c
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@ -4,7 +4,7 @@
// Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced // Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
// vim: sw=8 ts=8 // vim: sw=8 ts=8
char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.149 2005/11/17 06:46:24 bodea Exp $"; char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.150 2005/11/17 07:35:35 bodea Exp $";
#include <arpa/inet.h> #include <arpa/inet.h>
#include <assert.h> #include <assert.h>
@ -554,6 +554,13 @@ static void inittun(void)
LOG(0, 0, 0, "Error setting tun queue length: %s\n", strerror(errno)); LOG(0, 0, 0, "Error setting tun queue length: %s\n", strerror(errno));
exit(1); exit(1);
} }
/* set MTU to modem MRU + 4 (tun header) */
ifr.ifr_mtu = MRU + 4;
if (ioctl(ifrfd, SIOCSIFMTU, (void *) &ifr) < 0)
{
LOG(0, 0, 0, "Error setting tun MTU: %s\n", strerror(errno));
exit(1);
}
ifr.ifr_flags = IFF_UP; ifr.ifr_flags = IFF_UP;
if (ioctl(ifrfd, SIOCSIFFLAGS, (void *) &ifr) < 0) if (ioctl(ifrfd, SIOCSIFFLAGS, (void *) &ifr) < 0)
{ {

4
l2tpns.h
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@ -1,5 +1,5 @@
// L2TPNS Global Stuff // L2TPNS Global Stuff
// $Id: l2tpns.h,v 1.98 2005/11/14 08:38:02 bodea Exp $ // $Id: l2tpns.h,v 1.99 2005/11/17 07:35:35 bodea Exp $
#ifndef __L2TPNS_H__ #ifndef __L2TPNS_H__
#define __L2TPNS_H__ #define __L2TPNS_H__
@ -15,7 +15,7 @@
#include <sys/types.h> #include <sys/types.h>
#include <libcli.h> #include <libcli.h>
#define VERSION "2.1.11" #define VERSION "2.1.12"
// Limits // Limits
#define MAXTUNNEL 500 // could be up to 65535 #define MAXTUNNEL 500 // could be up to 65535

6
l2tpns.spec
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@ -1,6 +1,6 @@
Summary: A high-speed clustered L2TP LNS Summary: A high-speed clustered L2TP LNS
Name: l2tpns Name: l2tpns
Version: 2.1.11 Version: 2.1.12
Release: 1 Release: 1
Copyright: GPL Copyright: GPL
Group: System Environment/Daemons Group: System Environment/Daemons
@ -43,5 +43,5 @@ rm -rf %{buildroot}
%attr(644,root,root) /usr/share/man/man[58]/* %attr(644,root,root) /usr/share/man/man[58]/*
%changelog %changelog
* Mon Nov 14 2005 Brendan O'Dea <bod@optus.net> 2.1.11-1 * Thu Nov 17 2005 Brendan O'Dea <bod@optus.net> 2.1.12-1
- 2.1.11 release, see /usr/share/doc/l2tpns-2.1.11/Changes - 2.1.12 release, see /usr/share/doc/l2tpns-2.1.12/Changes