How to get the IPv6 address of next hop towards destination?

["Zheng Jianping" <zjp@xxxxxxxxxxx>]

Hi,

I'm modifying the Linux kernel (2.4.7.10) to support IPv6 multicast
forwarding. As required by IPv6 multicast routing protocol, the IPv6 address
of next hop towards destination is needed. So how can I get this
information?

Calling  struct dst_entry * ip6_route_output(struct sock *sk, struct flowi
*fl)
can get dst_entry which has a member
    struct neighbour *neighbour;
But I don't know which member in 'struct neighbor' stores the IPv6 address.
It seems  that
  u8   primary_key[0];
is responsible for it.

Is it right?

Thanks,
Zheng Jianping

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Multimedia Communication & Network Engneering Research Center
Institue of Software, Chiese Academy of Sciences

Email: zjp@xxxxxxxxxxx
Tel:     6255,5523