[Openswan dev] PATCH: alignment error messages (fwd)

Ken Bantoft ken at xelerance.com
Mon May 17 06:27:57 CEST 2004

Hi Paul, 

Openswan-1 doesn't have this function and nor does 2.x HEAD.

I've applied it to the 2.1 tree, as it exists there.  I can't see to find 
reference to this in 2.x HEAD, after merging the ALG patches.  I suspect 
is disappeared somewhere.

If you could try to cross-compile HEAD using your environment, we might 
find it, if it still exists.

On Sun, 16 May 2004, Paul Wouters wrote:

> Hugh's message below applies to freeswan and openswan-2.1.2rc5 and below.
> Openswan-1 and Openswan-2 HEAD doesn't have this bit of code. I am not
> entirely sure if struct encrypt_desc crypto_get_encrypter(int alg) would
> suffer the same problem.
> Michael, can you take a look at that? I will try and compile HEAD for MIPS
> in a few days and see if I get any of these errors.
> thanks Hugh!
> Paul
> ---------- Forwarded message ----------
> Date: Sat, 15 May 2004 23:15:59 -0400 (EDT)
> From: D. Hugh Redelmeier <hugh at mimosa.com>
> Cc: FreeS/WAN Design <design at lists.freeswan.org>
> To: Paul Wouters <paul at xtdnet.nl>
> Subject: alignment error messages
> Paul got several errors like this when he tried to build Openswan for
> the MIPS architecture:
> /usr/local/linksys/openwrt/buildroot/buildroot/build_mipsel/staging_dir/bin/mipsel-linux-uclibc-ld: Warning: alignment 8 of symbol `oakley_encrypter' in crypto.o is smaller than 16 in state.o
> This message is mysterious since the symbol oakley_encrypter is not
> used in state.c.  This applied for all the other messages too.
> It turns out that the message has pretty much nothing to do with what
> is wrong: a missing "extern" in the declaration of oakley_encrypter in
> crypto.h.  (As a C geek, I have some inkling of why it printed this
> message, but I still think the connection to the problem is tenuous.)
> I've enclosed a patch to FreeS/WAN's programs/pluto/crypto.h.  I no
> longer have CVS access so I cannot check in this fix.  I expect
> that the fix should also apply to Openswan and StrongS/WAN.
> Hugh Redelmeier
> hugh at mimosa.com  voice: +1 416 482-8253
> --- crypto.h.OLD	2002-04-24 03:35:47.000000000 -0400
> +++ crypto.h	2004-05-15 23:10:07.000000000 -0400
> @@ -48,7 +48,7 @@
>      void (*crypt)(bool enc, void *buf, size_t buf_len, struct state *st);
>  };
> -const struct encrypt_desc oakley_encrypter[OAKLEY_CAST_CBC + 1];
> +extern const struct encrypt_desc oakley_encrypter[OAKLEY_CAST_CBC + 1];
>  #define update_iv(st)	memcpy((st)->st_iv, (st)->st_new_iv \
>      , (st)->st_iv_len = (st)->st_new_iv_len)

Ken Bantoft			VP Business Development
ken at xelerance.com		Xelerance Corporation
sip://toronto.xelerance.com	http://www.xelerance.com

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        -- William Gibson

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