[Olsr-dev] getting the etx value to a destination

[ZioPRoTo (Saverio Proto)]

> For olsrd 0.5.6 the txtinfo is the best way to do this.

I don't like the idea of a Plugin depending on another plugin

And btw if I'm correct with the txtinfo you get only the ETX value of
every single link.

What I'm looking for is:

"the ETX of the best path from the current node to another node".

I think this value is computed to create the routing table, isn't it ?

I've seen this structure around... maybe is the one I'm looking for ?

struct rt_metric {
  olsr_linkcost cost;
  uint32_t hops;
};

I need it because I'd like OBAMP to consider the distance in terms of
ETX sum to reach another node, and not to consider just the number of
hops.

> For olsrd tiptip (the development branch which will become the next stable
> one) we could implement a special "ask for linkcost value" command. ETX is a
> floating point value, so working with raw linkcost might be a good idea.

Of course if what I need is not in the code I can try to make a patch :)

Saverio