From: Sridhar Samudrala <sri@us.ibm.com>
To: Adrian Bunk <bunk@stusta.de>
Cc: Clay Haapala <chaapala@cisco.com>,
lksctp-developers@lists.sourceforge.net, netdev@oss.sgi.com,
linux-kernel@vger.kernel.org
Subject: Re: SCTP: use lib/libcrc32c.c instead of net/sctp/crc32c.c?
Date: Fri, 13 May 2005 18:01:27 -0700 [thread overview]
Message-ID: <42854DE7.5030704@us.ibm.com> (raw)
In-Reply-To: <20050513135004.GG3603@stusta.de>
Adrian Bunk wrote:
>As far as I understand it, lib/libcrc32c.c could be used instead of the
>similar code in net/sctp/crc32c.c .
>
>Is there any reason why this isn't done?
>
>
The SCTP RFC3309 says that SCTP uses a tranport-level CRC where the bit
ordering is mirrored and different from link-level CRC.
The CRC is computed using a procedure similar to ETHERNET CRC [ITU32],
modified to reflect transport level usage.
So I am not sure if we can use the libcrc32c routines for calculating SCTP
crc32 checksum. But if it is possible, we should definitely use the crc32
library.
Thanks
Sridhar
prev parent reply other threads:[~2005-05-14 1:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-13 13:50 SCTP: use lib/libcrc32c.c instead of net/sctp/crc32c.c? Adrian Bunk
2005-05-14 1:01 ` Sridhar Samudrala [this message]
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