[Pkg-games-ubuntu] [Bug 931181] Re: Multiplayer network games are unreachable

[Ansgar Burchardt]

> Succesful (Ubuntu 11.10) client:
> Message: pakset_info_t::debug:	PostOffice ->
> sha1 = B80C3C262A2758C8FC54FF129272F564B7DA8AAF
>
> Failed (Manually-installed) server:
> Message: pakset_info_t::debug:	PostOffice ->
> sha1 = 263C0CB8C858272A12FF54FC64F57292AF8ADAB7

The two hashes are almost the same, except for their endianness:

 B8 0C 3C 26 ...
 26 3C 0C B8 ...

Just read the second one backwards.

I still am not sure when I'll have time to look at this in more detail
though :/

I replaced the SHA-1 implementation in Debian as the one currently used
seemed to be non-free (there isn't a license statement anywhere and [1]
looked like it was freeware on 2011-02-15 according to my notes).

Regards,
Ansgar

[1] <http://www.packetizer.com/security/sha1/>

-- 
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https://bugs.launchpad.net/bugs/931181

Title:
  Multiplayer network games are unreachable

Status in “simutrans” package in Ubuntu:
  New

Bug description:
  A multiplayer game served from the Debian/Ubuntu package can only be
  joined by clients running the same package. A manually installed same-
  version of Simutrans cannot join the game. This locks out players on
  other platforms.

  Similarly, a game served by a non-package version of Simutrans cannot
  be joined by the Debian/Ubuntu packaged client. This locks us out of
  everyone else's games.

  To reproduce this problem using Simutrans 110.0.1 (In the Ubuntu 11.10
  repos):

  1) Install the simutrans and simutrans-pak64 packages.

  2) Manually install the *same* release version and pak64 to a separate directory.
  Manual download page: http://forum.simutrans.com/index.php?topic=7025.0

  3) Start two instances of simutrans server. One each from the package-
  install and from the manual-install.

  $ simutrans -server 13353
  $ manual/simutrans/simutrans -server 13354

  4) Try to join to each server from the package-installed client:

  $ simutrans
  Join to game on port 13353 - success
  Join to game on port 13354 - fail

  5) Try to join to each server from the manually-installed client:

  $ manual/simutrans/simutrans
  Join - to game on port 13353 fail
  Join - to game on port 13354 success

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