Re: Exim and IPv6 Help

["Peter Galbavy" <peter.galbavy@knowtion.net>]

While I am the maintainer of the OpenBSD port of exim, I have no
experience of IPv6 outside book reading. If this turns out to be an exim
/ OpenBSD compatibility issue it should really go to ports@, while if
this is an OpenBSD IPv6 vs any other OS IPv6 issues then we are probably
in the right place.

Given Phil (I see you are cc'ed) comments about further release of the
3.xx branch, if there is an agreed on solution to this that can be added
as a patch to the existing port (which is *still* not up to 3.31 - mea
culpa) then drop me a line and I will check (to my ability - see IPv6
comment above) and commit.

rgds,
--
Peter Galbavy
Knowtion Ltd.
----- Original Message -----
From: "Kevin Sindhu" <kevin@tgivan.com>
To: <ipv6@openbsd.org>; "OpenBSD tech" <tech@openbsd.org>
Cc: <sheldonh@starjuice.net>; <kevin@lucifer.at>; <ph10@cus.cam.ac.uk>
Sent: Wednesday, July 11, 2001 5:22 PM
Subject: Exim and IPv6 Help


> Hello,
>
> First off I apologize for cross posting it to both tech@ and ipv6@. I
> am trying to get exim working with IPv6 on OpenBSD. Apparently this
> was never tested before, and there are issues with this. I'll try not
> to delve too deep in exim's working details here.
>
> Specifically, "if" IPv6 support is compiled in, exim does listen on
> the IPv6 interface but it fails to listen on the IPv4 interface.
> Working with the exim developers, they have managed to get the
> attached changes specifically for OpenBSD and IPv6. But now the daemon
> tries bind() to the all the interfaces and fails for the Ipv4
> interfaces. I am at loss now on what should be done next and would
> appreciate any help from you guru's out there.
>
> [root@satan exim-3.31/build-OpenBSD-i386] 518 $fstat -p 18728
> USER     CMD          PID   FD MOUNT      INUM MODE       R/W    DV|SZ
> exim     exim       18728   wd /var      48028 drwxr-x---   r      512
> exim     exim       18728    0* internet6 stream tcp 0xe0bedd00 *:2525
>
> Patch attached.
>
> Rgds
>
> --
> Kevin Sindhu <kevin at tgivan dot com>
> Systems Engineer
> TGI Technologies Inc. Tel: (604) 872-6676 Ext 321
> 107 E 3rd Avenue Fax: (604) 872-6601
> Vancouver,BC V5T 1C7
> Canada.
> --- OS/os.h-OpenBSD.orig Tue Jul 10 11:55:37 2001
> +++ OS/os.h-OpenBSD Tue Jul 10 11:55:53 2001
> @@ -3,6 +3,7 @@
>  #define HAVE_BSD_GETLOADAVG
>  #define HAVE_MMAP
>  #define HAVE_SYS_MOUNT_H
> +#define SIOCGIFCONF_GIVES_ADDR
>
>  typedef struct flock flock_t;
>
> --- src/daemon.c.orig Tue Jul 10 11:52:32 2001
> +++ src/daemon.c Tue Jul 10 11:53:33 2001
> @@ -841,7 +841,13 @@
>
>      for (i = 9; i >= 0; i--)
>        {
> -      if (bind(listen_sockets[sk], (struct sockaddr *)&sin,
sizeof(sin)) < 0)
> +      if (bind(listen_sockets[sk], (struct sockaddr *)&sin,
> +               #ifdef HAVE_IPV6
> +               ipv6_socket? sizeof(sin.v6) : sizeof(sin.v4)
> +               #else
> +               sizeof(sin)
> +               #endif
> +           ) < 0)
>          {
>          char *msg = strerror(errno);
>          char *addr = (ipa->address[0] == 0)? "(any)" : ipa->address;