Hello everybody, As a comment says in include/linux/ipv6.h, the ipv6hdr structure is not correct. The variables priority and flow_lbl do not match the IPv6 header fields as described in the RFC.
/*
* IPv6 fixed header
*
* BEWARE, it is incorrect. The first 4 bits of flow_lbl
* are glued to priority now, forming "class".
*/
struct ipv6hdr {
#if defined(__LITTLE_ENDIAN_BITFIELD)
__u8 priority:4,
version:4;
#elif defined(__BIG_ENDIAN_BITFIELD)
__u8 version:4,
priority:4;
#else
#error "Please fix <asm/byteorder.h>"
#endif
__u8 flow_lbl[3];
[snip]
Is there some specific reason (other than historical one) ?
Didier Barvaux
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