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Add support for pushing network config refresh hints from a MEMORY queue table. That ways it will be possible for network changes to take effect almost immediately across all active peers.

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This commit is contained in:
Adam Ierymenko 2013-10-17 05:37:01 -04:00
parent 46f868bd4f
commit 7e7e28f5f7
4 changed files with 79 additions and 7 deletions
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28
node/Node.cpp
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@ -269,6 +269,34 @@ static void _netconfServiceMessageHandler(void *renv,Service &svc,const Dictiona
}
}
}
} else if (type == "netconf-push") {
if (msg.contains("to")) {
Dictionary to(msg.get("to")); // key: peer address, value: comma-delimited network list
for(Dictionary::iterator t(to.begin());t!=to.end();++t) {
Address ztaddr(t->first);
if (ztaddr) {
Packet outp(ztaddr,_r->identity.address(),Packet::VERB_NETWORK_CONFIG_REFRESH);
char *saveptr = (char *)0;
// Note: this loop trashes t->second, which is quasi-legal C++ but
// shouldn't break anything as long as we don't try to use 'to'
// for anything interesting after doing this.
for(char *p=Utils::stok(const_cast<char *>(t->second.c_str()),",",&saveptr);(p);p=Utils::stok((char *)0,",",&saveptr)) {
uint64_t nwid = Utils::hexStrToU64(p);
if (nwid) {
if ((outp.size() + sizeof(uint64_t)) >= ZT_UDP_DEFAULT_PAYLOAD_MTU) {
_r->sw->send(outp,true);
outp.reset(ztaddr,_r->identity.address(),Packet::VERB_NETWORK_CONFIG_REFRESH);
}
outp.append(nwid);
}
}
if (outp.payloadLength())
_r->sw->send(outp,true);
}
}
}
}
} catch (std::exception &exc) {
LOG("unexpected exception parsing response from netconf service: %s",exc.what());