void ServernameResolver::OnLookupComplete(const DNS::Query *r)
{
const DNS::ResourceRecord &ans_record = r->answers[0];
/* Initiate the connection, now that we have an IP to use.
* Passing a hostname directly to BufferedSocket causes it to
* just bail and set its FD to -1.
*/
TreeServer* CheckDupe = Utils->FindServer(MyLink->Name.c_str());
if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
{
TreeSocket* newsocket = new TreeSocket(Utils, MyLink, myautoconnect, ans_record.rdata);
if (newsocket->GetFd() > -1)
{
/* We're all OK */
}
else
{
/* Something barfed, show the opers */
ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
MyLink->Name.c_str(), newsocket->getError().c_str());
ServerInstance->GlobalCulls.AddItem(newsocket);
}
}
}
void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
{
bool ipvalid = true;
if (InspIRCd::Match(ServerInstance->Config->ServerName, assign(x->Name)))
{
ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
return;
}
DNS::QueryType start_type = DNS::QUERY_AAAA;
if (strchr(x->IPAddr.c_str(),':'))
{
in6_addr n;
if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
ipvalid = false;
}
else
{
in_addr n;
if (inet_aton(x->IPAddr.c_str(),&n) < 1)
ipvalid = false;
}
/* Do we already have an IP? If so, no need to resolve it. */
if (ipvalid)
{
/* Gave a hook, but it wasnt one we know */
TreeSocket* newsocket = new TreeSocket(x, y, x->IPAddr);
if (newsocket->GetFd() > -1)
{
/* Handled automatically on success */
}
else
{
ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
x->Name.c_str(), newsocket->getError().c_str());
ServerInstance->GlobalCulls.AddItem(newsocket);
}
}
else if (!DNS)
{
ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: Hostname given and m_dns.so is not loaded, unable to resolve.", x->Name.c_str());
}
else
{
ServernameResolver* snr = new ServernameResolver(*DNS, x->IPAddr, x, start_type, y);
try
{
DNS->Process(snr);
}
catch (DNS::Exception& e)
{
delete snr;
ServerInstance->SNO->WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
ConnectServer(y, false);
}
}
}
void ModuleSpanningTree::ConnectServer(Link* x)
{
bool ipvalid = true;
QueryType start_type = DNS_QUERY_A;
#ifdef IPV6
start_type = DNS_QUERY_AAAA;
if (strchr(x->IPAddr.c_str(),':'))
{
in6_addr n;
if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
ipvalid = false;
}
else
#endif
{
in_addr n;
if (inet_aton(x->IPAddr.c_str(),&n) < 1)
ipvalid = false;
}
/* Do we already have an IP? If so, no need to resolve it. */
if (ipvalid)
{
/* Gave a hook, but it wasnt one we know */
if ((!x->Hook.empty()) && (Utils->hooks.find(x->Hook.c_str()) == Utils->hooks.end()))
return;
TreeSocket* newsocket = new TreeSocket(Utils, ServerInstance, x->IPAddr,x->Port,false,x->Timeout ? x->Timeout : 10,x->Name.c_str(), x->Bind, x->Hook.empty() ? NULL : Utils->hooks[x->Hook.c_str()]);
if (newsocket->GetFd() > -1)
{
/* Handled automatically on success */
}
else
{
ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
delete newsocket;
Utils->DoFailOver(x);
}
}
else
{
try
{
bool cached;
ServernameResolver* snr = new ServernameResolver((Module*)this, Utils, ServerInstance,x->IPAddr, *x, cached, start_type);
ServerInstance->AddResolver(snr, cached);
}
catch (ModuleException& e)
{
ServerInstance->SNO->WriteToSnoMask('l',"CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason());
Utils->DoFailOver(x);
}
}
}
void ModuleSpanningTree::ConnectServer(Link* x, Autoconnect* y)
{
bool ipvalid = true;
if (InspIRCd::Match(ServerInstance->Config->ServerName, x->Name, ascii_case_insensitive_map))
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Not connecting to myself.");
return;
}
#ifndef _WIN32
if (x->IPAddr.find('/') != std::string::npos)
{
struct stat sb;
if (stat(x->IPAddr.c_str(), &sb) == -1 || !S_ISSOCK(sb.st_mode))
ipvalid = false;
}
#endif
if (x->IPAddr.find(':') != std::string::npos)
{
in6_addr n;
if (inet_pton(AF_INET6, x->IPAddr.c_str(), &n) < 1)
ipvalid = false;
}
else
{
in_addr n;
if (inet_pton(AF_INET, x->IPAddr.c_str(),&n) < 1)
ipvalid = false;
}
/* Do we already have an IP? If so, no need to resolve it. */
if (ipvalid)
{
// Create a TreeServer object that will start connecting immediately in the background
TreeSocket* newsocket = new TreeSocket(x, y, x->IPAddr);
if (newsocket->GetFd() > -1)
{
/* Handled automatically on success */
}
else
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",
x->Name.c_str(), newsocket->getError().c_str());
ServerInstance->GlobalCulls.AddItem(newsocket);
}
}
else if (!DNS)
{
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: Hostname given and core_dns is not loaded, unable to resolve.", x->Name.c_str());
}
else
{
// Guess start_type from bindip aftype
DNS::QueryType start_type = DNS::QUERY_AAAA;
irc::sockets::sockaddrs bind;
if ((!x->Bind.empty()) && (irc::sockets::aptosa(x->Bind, 0, bind)))
{
if (bind.family() == AF_INET)
start_type = DNS::QUERY_A;
}
ServernameResolver* snr = new ServernameResolver(*DNS, x->IPAddr, x, start_type, y);
try
{
DNS->Process(snr);
}
catch (DNS::Exception& e)
{
delete snr;
ServerInstance->SNO.WriteToSnoMask('l', "CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(), e.GetReason().c_str());
ConnectServer(y, false);
}
}
}
