-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2010 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
*
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+
#include "inspircd.h"
-#include "socket.h"
-#include "xline.h"
-#include "../m_hash.h"
-#include "socketengine.h"
+#include "iohook.h"
#include "main.h"
-#include "../spanningtree.h"
+#include "modules/spanningtree.h"
#include "utils.h"
#include "treeserver.h"
#include "link.h"
#include "treesocket.h"
-#include "resolvers.h"
+#include "commands.h"
/** Because most of the I/O gubbins are encapsulated within
* BufferedSocket, we just call the superclass constructor for
* most of the action, and append a few of our own values
* to it.
*/
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, const std::string& shost, int iport, unsigned long maxtime, const std::string &ServerName, const std::string &bindto, Autoconnect* myac, const std::string& hook)
- : Utils(Util), IP(shost), myautoconnect(myac)
+TreeSocket::TreeSocket(Link* link, Autoconnect* myac, const std::string& ipaddr)
+ : linkID(assign(link->Name)), LinkState(CONNECTING), MyRoot(NULL), proto_version(0), ConnectionFailureShown(false)
+ , age(ServerInstance->Time())
{
- age = ServerInstance->Time();
- myhost = ServerName;
- capab_phase = 0;
- proto_version = 0;
- LinkState = CONNECTING;
- if (!hook.empty())
- {
- ServiceProvider* prov = ServerInstance->Modules->FindService(SERVICE_IOHOOK, hook);
- if (!prov)
- {
- SetError("Could not find hook '" + hook + "' for connection to " + ServerName);
- return;
- }
- AddIOHook(prov->creator);
- }
- DoConnect(shost, iport, maxtime, bindto);
- Utils->timeoutlist[this] = std::pair<std::string, int>(ServerName, maxtime);
+ capab = new CapabData;
+ capab->link = link;
+ capab->ac = myac;
+ capab->capab_phase = 0;
+
+ DoConnect(ipaddr, link->Port, link->Timeout, link->Bind);
+ Utils->timeoutlist[this] = std::pair<std::string, int>(linkID, link->Timeout);
SendCapabilities(1);
}
* we must associate it with a socket without creating a new
* connection. This constructor is used for this purpose.
*/
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, int newfd, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
- : BufferedSocket(newfd), Utils(Util)
+TreeSocket::TreeSocket(int newfd, ListenSocket* via, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server)
+ : BufferedSocket(newfd)
+ , linkID("inbound from " + client->addr()), LinkState(WAIT_AUTH_1), MyRoot(NULL), proto_version(0)
+ , ConnectionFailureShown(false), age(ServerInstance->Time())
{
- IP = client->addr();
- age = ServerInstance->Time();
- LinkState = WAIT_AUTH_1;
- capab_phase = 0;
- proto_version = 0;
- myhost = "inbound from " + IP;
-
- FOREACH_MOD(I_OnHookIO, OnHookIO(this, via));
- if (GetIOHook())
- GetIOHook()->OnStreamSocketAccept(this, client, server);
+ capab = new CapabData;
+ capab->capab_phase = 0;
+
+ if (via->iohookprov)
+ via->iohookprov->OnAccept(this, client, server);
SendCapabilities(1);
- Utils->timeoutlist[this] = std::pair<std::string, int>(myhost, 30);
+ Utils->timeoutlist[this] = std::pair<std::string, int>(linkID, 30);
}
ServerState TreeSocket::GetLinkState()
void TreeSocket::CleanNegotiationInfo()
{
- ModuleList.clear();
- OptModuleList.clear();
- CapKeys.clear();
- ourchallenge.clear();
- theirchallenge.clear();
- OutboundPass.clear();
+ // connect is good, reset the autoconnect block (if used)
+ if (capab->ac)
+ capab->ac->position = -1;
+ delete capab;
+ capab = NULL;
}
CullResult TreeSocket::cull()
{
Utils->timeoutlist.erase(this);
- if (myautoconnect)
- Utils->Creator->ConnectServer(myautoconnect, false);
+ if (capab && capab->ac)
+ Utils->Creator->ConnectServer(capab->ac, false);
return this->BufferedSocket::cull();
}
TreeSocket::~TreeSocket()
{
+ delete capab;
}
/** When an outbound connection finishes connecting, we receive
{
if (this->LinkState == CONNECTING)
{
- /* we do not need to change state here. */
- for (std::vector<reference<Link> >::iterator i = Utils->LinkBlocks.begin(); i < Utils->LinkBlocks.end(); ++i)
+ if (!capab->link->Hook.empty())
{
- Link* x = *i;
- if (x->Name == this->myhost)
+ ServiceProvider* prov = ServerInstance->Modules->FindService(SERVICE_IOHOOK, capab->link->Hook);
+ if (!prov)
{
- ServerInstance->SNO->WriteGlobalSno('l', "Connection to \2%s\2[%s] started.", myhost.c_str(), (x->HiddenFromStats ? "<hidden>" : this->IP.c_str()));
- this->OutboundPass = x->SendPass;
- this->SendCapabilities(1);
+ SetError("Could not find hook '" + capab->link->Hook + "' for connection to " + linkID);
return;
}
+ static_cast<IOHookProvider*>(prov)->OnConnect(this);
}
+
+ ServerInstance->SNO->WriteGlobalSno('l', "Connection to \2%s\2[%s] started.", linkID.c_str(),
+ (capab->link->HiddenFromStats ? "<hidden>" : capab->link->IPAddr.c_str()));
+ this->SendCapabilities(1);
}
- /* There is a (remote) chance that between the /CONNECT and the connection
- * being accepted, some muppet has removed the <link> block and rehashed.
- * If that happens the connection hangs here until it's closed. Unlikely
- * and rather harmless.
- */
- ServerInstance->SNO->WriteGlobalSno('l', "Connection to \2%s\2 lost link tag(!)", myhost.c_str());
}
void TreeSocket::OnError(BufferedSocketError e)
{
- ServerInstance->SNO->WriteGlobalSno('l', "Connection to \002%s\002 failed with error: %s",
- myhost.c_str(), getError().c_str());
- ServerInstance->GlobalCulls.AddItem(this);
+ ServerInstance->SNO->WriteGlobalSno('l', "Connection to '\002%s\002' failed with error: %s",
+ linkID.c_str(), getError().c_str());
+ LinkState = DYING;
}
void TreeSocket::SendError(const std::string &errormessage)
{
WriteLine("ERROR :"+errormessage);
+ DoWrite();
+ LinkState = DYING;
SetError(errormessage);
}
* is having a REAL bad hair day, this function shouldnt be called
* too many times a month ;-)
*/
-void TreeSocket::SquitServer(std::string &from, TreeServer* Current)
+void TreeSocket::SquitServer(std::string &from, TreeServer* Current, int& num_lost_servers, int& num_lost_users)
{
- ServerInstance->Logs->Log("m_spanningtree",DEBUG,"SquitServer for %s from %s",
- Current->GetName().c_str(), from.c_str());
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "SquitServer for %s from %s", Current->GetName().c_str(), from.c_str());
/* recursively squit the servers attached to 'Current'.
* We're going backwards so we don't remove users
* while we still need them ;)
*/
- for (unsigned int q = 0; q < Current->ChildCount(); q++)
+ const TreeServer::ChildServers& children = Current->GetChildren();
+ for (TreeServer::ChildServers::const_iterator i = children.begin(); i != children.end(); ++i)
{
- TreeServer* recursive_server = Current->GetChild(q);
- this->SquitServer(from,recursive_server);
+ TreeServer* recursive_server = *i;
+ this->SquitServer(from,recursive_server, num_lost_servers, num_lost_users);
}
/* Now we've whacked the kids, whack self */
num_lost_servers++;
{
bool LocalSquit = false;
- if ((Current) && (Current != Utils->TreeRoot))
+ if (!Current->IsRoot())
{
DelServerEvent(Utils->Creator, Current->GetName());
- parameterlist params;
- params.push_back(Current->GetName());
- params.push_back(":"+reason);
- Utils->DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
- if (Current->GetParent() == Utils->TreeRoot)
+ if (Current->IsLocal())
{
ServerInstance->SNO->WriteGlobalSno('l', "Server \002"+Current->GetName()+"\002 split: "+reason);
LocalSquit = true;
+ if (Current->GetSocket()->Introduced())
+ {
+ CmdBuilder params("SQUIT");
+ params.push_back(Current->GetID());
+ params.push_last(reason);
+ params.Broadcast();
+ }
}
else
{
ServerInstance->SNO->WriteGlobalSno('L', "Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
}
- num_lost_servers = 0;
- num_lost_users = 0;
+ int num_lost_servers = 0;
+ int num_lost_users = 0;
std::string from = Current->GetParent()->GetName()+" "+Current->GetName();
- SquitServer(from, Current);
+
+ ModuleSpanningTree* st = Utils->Creator;
+ st->SplitInProgress = true;
+ SquitServer(from, Current, num_lost_servers, num_lost_users);
+ st->SplitInProgress = false;
+
+ ServerInstance->SNO->WriteToSnoMask(LocalSquit ? 'l' : 'L', "Netsplit complete, lost \002%d\002 user%s on \002%d\002 server%s.",
+ num_lost_users, num_lost_users != 1 ? "s" : "", num_lost_servers, num_lost_servers != 1 ? "s" : "");
Current->Tidy();
Current->GetParent()->DelChild(Current);
Current->cull();
delete Current;
- if (LocalSquit)
- ServerInstance->SNO->WriteToSnoMask('l', "Netsplit complete, lost \002%d\002 user%s on \002%d\002 server%s.", num_lost_users, num_lost_users != 1 ? "s" : "", num_lost_servers, num_lost_servers != 1 ? "s" : "");
- else
- ServerInstance->SNO->WriteToSnoMask('L', "Netsplit complete, lost \002%d\002 user%s on \002%d\002 server%s.", num_lost_users, num_lost_users != 1 ? "s" : "", num_lost_servers, num_lost_servers != 1 ? "s" : "");
+ if (Current == MyRoot)
+ {
+ MyRoot = NULL;
+ Close();
+ }
+ }
+}
+
+CmdResult CommandSQuit::HandleServer(TreeServer* server, std::vector<std::string>& params)
+{
+ TreeServer* quitting = Utils->FindServer(params[0]);
+ if (!quitting)
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Squit from unknown server");
+ return CMD_FAILURE;
}
- else
- ServerInstance->Logs->Log("m_spanningtree",DEFAULT,"Squit from unknown server");
+
+ TreeSocket* sock = server->GetSocket();
+ sock->Squit(quitting, params[1]);
+
+ // XXX: Return CMD_FAILURE when servers SQUIT themselves (i.e. :00S SQUIT 00S :Shutting down)
+ // to avoid RouteCommand() being called. RouteCommand() requires a valid command source but we
+ // do not have one because the server user is deleted when its TreeServer is destructed.
+ // We generate a SQUIT in TreeSocket::Squit(), with our sid as the source and send it to the
+ // remaining servers.
+ return ((quitting == server) ? CMD_FAILURE : CMD_SUCCESS);
}
/** This function is called when we receive data from a remote
break;
}
ProcessLine(line);
+ if (!getError().empty())
+ break;
}
+ if (LinkState != CONNECTED && recvq.length() > 4096)
+ SendError("RecvQ overrun (line too long)");
Utils->Creator->loopCall = false;
}
+
+bool TreeSocket::Introduced()
+{
+ return (capab == NULL);
+}
projects / user / henk / code / inspircd.git / blobdiff