From: Nickolay Vinogradov <nickolay@xxxxxxxxx>
Date: Mon, 22 Sep 2008 19:58:26 +0400
CC:'ing correct mailing lists...
> SCTP checksum calculation fix for BigEndian.
> ntohl() doesn't do anything on BigEndian.
>
> diff --git a/Makefile b/Makefile
> diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
> index ba75c67..2f0ed64 100644
> --- a/include/net/sctp/checksum.h
> +++ b/include/net/sctp/checksum.h
> @@ -74,5 +74,19 @@ static inline __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
>
> static inline __u32 sctp_end_cksum(__u32 crc32)
> {
> - return ntohl(~crc32);
> + __u32 result;
> + __u8 byte0, byte1, byte2, byte3;
> +
> + result = ~crc32;
> +
> + byte0 = result & 0xff;
> + byte1 = (result>>8) & 0xff;
> + byte2 = (result>>16) & 0xff;
> + byte3 = (result>>24) & 0xff;
> +
> + crc32 = ((byte0 << 24) |
> + (byte1 << 16) |
> + (byte2 << 8) |
> + byte3);
> + return crc32;
> }
> diff --git a/net/sctp/output.c b/net/sctp/output.c
>
>
> -- Nickolay Vinogradov
> Protei Research and Development Center
> St.Petersburg, 194044, Russia
> Tel.: +7 812 449 47 27
> --
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