qrt_build_query_target() has the following lines...
gboolean process_ultra = FALSE;
...
/*
* We need to special case processing of queries with TTL=1 so that they
* get set to ultra peers that support last-hop QRP only if they can
* provide a reply. Ultrapeers that don't support last-hop QRP will
* always get the query.
*/
process_ultra = (ttl == 1);
for (sl = node_all_nodes(); sl; sl = g_slist_next(sl)) {
...
if (is_leaf) {
/* Leaf node */
if (rt == NULL) /* No QRT yet */
continue; /* Don't send anything */
} else {
/* Ultra node */
if (!process_ultra)
continue;
if (ttl == 0) /* Message expired here */
continue; /* Don't forward to non-leaves */
...
I think the last two translate to,
if(!(ttl == 1)) /* (ttl != 1) */
continue;
if(ttl == 0) /* TTL must be one here? */
continue;
Maybe I am up too late ;-). I guess the second test never needs to be
made. However, it doesn't look like we would forward query requests
with a TTL greater than one? Is this impossible to have a ttl greater
than one?
Sorry if this is obvious. Something seems a little weird to me.
Regards,
Bill Pringlemeir.
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