Alberto Gonzalez Iniesta <a...@agi.as> said: > Hi all, > > Sorry for the delay forwarding this email, but I don't find time to > breath lately (and thus Oxygen does not make it to my brain :) > > Hope it's an easy one. > > > ----- Forwarded message from Robert de Bath <robert$@mayday.cix.co.uk> ----- > > From: Robert de Bath <robert$@mayday.cix.co.uk> > Reply-To: Robert de Bath <robert$@mayday.cix.co.uk>, 182...@bugs.debian.org > To: sub...@bugs.debian.org > Subject: Bug#182020: openvpn needs dynamic choice on HAVE_LINUX_IF_TUN_H > Date: Sat, 22 Feb 2003 11:03:19 +0000 (GMT) > X-URL: <http://www.cix.co.uk/~mayday> > X-Dev86-Version: 0.16.10 > Reply-By: 01 jan 2001 00:00:00 > X-Message-Flag: Linux: The choice of a GNU generation. > Return-Receipt-To: recei...@mayday.cix.co.uk > X-Spam-Level: > X-SpamProbe: GOOD 0.0000000 f10cd08f2b096e6bf59bcfea5e2f80a4 > X-Spam-Status: No, hits=-4.5 required=5.0 tests=SENT_BY_BTS,FORGED_RCVD_FOUND version=2.20 > X-Spam-Level: > > Package: openvpn > Version: 1.3.0-2 > > When compiled with 2.4.* kernel headers (libc6-dev 2.2.5-14.3 headers) > it detects this header file and defines HAVE_LINUX_IF_TUN_H. This allow > openvpn to work correctly with 2.4.18 kernels BUT it stops it working > with 2.2.X kernels at all (with or without the tun kernel module from > sourceforge)
OpenVPN's config script assumes that if 2.4 headers are present (i.e. if_tun.h), then it should build for the 2.4 tun/tap driver. I don't completely understand why one would want to put 2.4 kernel headers on a 2.2 machine, since that would tend to confuse things, and break apps that depend on the userspace <-> kernel interface as defined by the kernel header files. But in any case, you can still build if you do the following. (1) run ./configure (2) edit config.h (3) comment out this line: #define HAVE_LINUX_IF_TUN_H 1 (4) run make This could be automatic if ./configure did a kernel version test, and only defined HAVE_LINUX_IF_TUN_H if (a) if_tun.h exists and (b) kernel version is 2.4.x. James > Options are: > > 1) Seperate compiles for 2.2.X and 2.4+ kernels, both binaries in the .deb > > 2) Patch tun.c to first check if /dev/net/tun exists and works before > falling back to the open_tun_generic(..) function if it doesn't. > > I'm currently successfully using openvpn between a 2.2.19 and 2.4.18 > kernel using the tun0 tunnel and the driver from sourceforge on the 2.2.19 > machine. (No reboot required to install the tun0 driver) The 2.4.18 > openvpn is standard, the 2.2.19 has HAVE_LINUX_IF_TUN_H undefined. > > Both machines are woody with libc6/testing. > > -- > Rob. (Robert de Bath <robert$ @ debath.co.uk>) > <http://www.cix.co.uk/~mayday> > Google Homepage: http://www.google.com/search?btnI&q=Robert+de+Bath > > > ----- End forwarded message ----- > > -- > Alberto Gonzalez Iniesta | BOFH excuse #2: > agi@(agi.as|debian.org) | solar flares > Encrypted mail preferred | > > Key fingerprint = 9782 04E7 2B75 405C F5E9 0C81 C514 AF8E 4BA4 01C3 > > > ------------------------------------------------------- > Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara > The only event dedicated to issues related to Linux enterprise solutions > www.enterpriselinuxforum.com > > _______________________________________________ > Openvpn-devel mailing list > Openvpn-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/openvpn-devel > --
