static void searchReplyCallback(struct RouterModule_Promise* promise,
uint32_t lagMilliseconds,
struct Address* from,
Dict* result)
{
struct SearchRunner_Search* search =
Identity_check((struct SearchRunner_Search*)promise->userData);
if (!Bits_memcmp(from->ip6.bytes, search->target.ip6.bytes, 16)) {
search->numFinds++;
}
struct Address_List* nodeList =
ReplySerializer_parse(from, result, search->runner->logger, true, promise->alloc);
struct Address* best = NULL;
for (int i = 0; nodeList && i < nodeList->length; i++) {
if (isDuplicateEntry(nodeList, i)) {
continue;
}
if (Address_closest(&search->target, &nodeList->elems[i], from) >= 0) {
// Too much noise.
//Log_debug(search->runner->logger, "Answer was further from the target than us.\n");
continue;
}
if (search->lastNodeAsked.path != from->path) {
// old queries coming in late...
continue;
}
struct Node_Two* nn =
NodeStore_getBest(search->runner->nodeStore, nodeList->elems[i].ip6.bytes);
if (!nn) {
RumorMill_addNode(search->runner->rumorMill, &nodeList->elems[i]);
}
//nodeList->elems[i].path =
// NodeStore_optimizePath(search->runner->nodeStore, nodeList->elems[i].path);
if (!Bits_memcmp(nodeList->elems[i].ip6.bytes, search->target.ip6.bytes, 16)) {
if (!best) {
best = &nodeList->elems[i];
continue;
} else if (nodeList->elems[i].path < best->path) {
SearchStore_addNodeToSearch(best, search->search);
best = &nodeList->elems[i];
continue;
}
}
SearchStore_addNodeToSearch(&nodeList->elems[i], search->search);
}
if (best) {
SearchStore_addNodeToSearch(best, search->search);
}
}
static void onPingResponse(struct SwitchPinger_Response* resp, void* onResponseContext)
{
if (SwitchPinger_Result_OK != resp->res) {
return;
}
struct InterfaceController_Peer* ep =
Identity_check((struct InterfaceController_Peer*) onResponseContext);
struct InterfaceController_pvt* ic = ifcontrollerForPeer(ep);
struct Address addr;
Bits_memset(&addr, 0, sizeof(struct Address));
Bits_memcpyConst(addr.key, CryptoAuth_getHerPublicKey(ep->cryptoAuthIf), 32);
addr.path = ep->switchLabel;
addr.protocolVersion = resp->version;
#ifdef Log_DEBUG
uint8_t addrStr[60];
Address_print(addrStr, &addr);
uint8_t key[56];
Base32_encode(key, 56, CryptoAuth_getHerPublicKey(ep->cryptoAuthIf), 32);
#endif
if (!Version_isCompatible(Version_CURRENT_PROTOCOL, resp->version)) {
Log_debug(ic->logger, "got switch pong from node [%s] with incompatible version [%d]",
key, resp->version);
} else {
Log_debug(ic->logger, "got switch pong from node [%s] with version [%d]",
key, resp->version);
}
if (!ep->timeOfLastPing) {
// We've never heard from this machine before (or we've since forgotten about it)
// This is here because we want the tests to function without the janitor present.
// Other than that, it just makes a slightly more synchronous/guaranteed setup.
Router_sendGetPeers(ic->router, &addr, 0, 0, ic->allocator);
}
struct Node_Link* link = Router_linkForPath(ic->router, resp->label);
if (!link || !Node_getBestParent(link->child)) {
RumorMill_addNode(ic->rumorMill, &addr);
} else {
Log_debug(ic->logger, "link exists");
}
ep->timeOfLastPing = Time_currentTimeMilliseconds(ic->eventBase);
#ifdef Log_DEBUG
// This will be false if it times out.
//Assert_true(label == ep->switchLabel);
uint8_t path[20];
AddrTools_printPath(path, resp->label);
uint8_t sl[20];
AddrTools_printPath(sl, ep->switchLabel);
Log_debug(ic->logger, "Received [%s] from lazy endpoint [%s] [%s]",
SwitchPinger_resultString(resp->res)->bytes, path, sl);
#endif
}
static Iface_DEFUN discoveredPath(struct Message* msg, struct Pathfinder_pvt* pf)
{
struct Address addr;
addressForNode(&addr, msg);
// We're somehow aware of this path (even if it's unused)
if (NodeStore_linkForPath(pf->nodeStore, addr.path)) { return NULL; }
// If we don't already care about the destination, then don't do anything.
struct Node_Two* nn = NodeStore_nodeForAddr(pf->nodeStore, addr.ip6.bytes);
if (!nn) { return NULL; }
// Our best path is "shorter" (label bits which is somewhat representitive of hop count)
// basically this is just to dampen the flood to the RM because otherwise it prevents Janitor
// from getting any actual work done.
if (nn->address.path < addr.path) { return NULL; }
Log_debug(pf->log, "Discovered path [%s]", Address_toString(&addr, msg->alloc)->bytes);
RumorMill_addNode(pf->rumorMill, &addr);
return NULL;
}
