[PATCH] ICMP extensions for MPLS support for traceroute(8)
Joerg Sonnenberger
joerg at britannica.bec.de
Thu May 10 05:45:41 PDT 2007
On Thu, May 10, 2007 at 02:13:36PM +0300, Hasso Tepper wrote:
> +/*
> + * ICMP extensions, common header
> + */
> +struct icmp_ext_cmn_hdr {
> +#if BYTE_ORDER == BIG_ENDIAN
> + unsigned char version:4;
> + unsigned char reserved1:4;
> +#else
> + unsigned char reserved1:4;
> + unsigned char version:4;
> +#endif
> + unsigned char reserved2;
> + unsigned short checksum;
> +};
Please don't add new code that depends on the order of bitfields.
(Or bitfields in general for wire protocols).
Joerg
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