/*
* InspIRCd -- Internet Relay Chat Daemon
*
+ * Copyright (C) 2018-2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2017 B00mX0r <b00mx0r@aureus.pw>
+ * Copyright (C) 2013-2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- * Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007, 2010 Craig Edwards <brain@inspircd.org>
* Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
#include "inspircd.h"
#include "xline.h"
#include "main.h"
-#include "modules/spanningtree.h"
#include "utils.h"
#include "treeserver.h"
* no socket associated with it. Its version string is our own local version.
*/
TreeServer::TreeServer()
- : Parent(NULL), Route(NULL), ServerName(ServerInstance->Config->ServerName), ServerDesc(ServerInstance->Config->ServerDesc)
- , VersionString(ServerInstance->GetVersionString()), Socket(NULL), sid(ServerInstance->Config->GetSID()), ServerUser(ServerInstance->FakeClient)
- , age(ServerInstance->Time()), Warned(false), bursting(false), UserCount(0), OperCount(0), rtt(0), StartBurst(0), Hidden(false)
+ : Server(ServerInstance->Config->GetSID(), ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc)
+ , Parent(NULL), Route(NULL)
+ , VersionString(ServerInstance->GetVersionString())
+ , fullversion(ServerInstance->GetVersionString(true))
+ , rawversion(INSPIRCD_VERSION)
+ , Socket(NULL)
+ , behind_bursting(0)
+ , isdead(false)
+ , pingtimer(this)
+ , ServerUser(ServerInstance->FakeClient)
+ , age(ServerInstance->Time())
+ , UserCount(ServerInstance->Users.LocalUserCount())
+ , OperCount(0)
+ , rtt(0)
+ , StartBurst(0)
+ , Hidden(false)
{
AddHashEntry();
}
/** When we create a new server, we call this constructor to initialize it.
* This constructor initializes the server's Route and Parent, and sets up
- * its ping counters so that it will be pinged one minute from now.
+ * the ping timer for the server.
*/
-TreeServer::TreeServer(const std::string& Name, const std::string& Desc, const std::string& id, TreeServer* Above, TreeSocket* Sock, bool Hide)
- : Parent(Above), ServerName(Name), ServerDesc(Desc), Socket(Sock), sid(id), ServerUser(new FakeUser(id, Name))
- , age(ServerInstance->Time()), Warned(false), bursting(true), UserCount(0), OperCount(0), rtt(0), Hidden(Hide)
+TreeServer::TreeServer(const std::string& Name, const std::string& Desc, const std::string& Sid, TreeServer* Above, TreeSocket* Sock, bool Hide)
+ : Server(Sid, Name, Desc)
+ , Parent(Above)
+ , Socket(Sock)
+ , behind_bursting(Parent->behind_bursting)
+ , isdead(false)
+ , pingtimer(this)
+ , ServerUser(new FakeUser(id, this))
+ , age(ServerInstance->Time())
+ , UserCount(0)
+ , OperCount(0)
+ , rtt(0)
+ , StartBurst(0)
+ , Hidden(Hide)
{
- SetNextPingTime(ServerInstance->Time() + Utils->PingFreq);
- SetPingFlag();
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "New server %s behind_bursting %u", GetName().c_str(), behind_bursting);
+ CheckULine();
- long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
- this->StartBurst = ts;
- ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Server %s started bursting at time %lu", sid.c_str(), ts);
+ ServerInstance->Timers.AddTimer(&pingtimer);
/* find the 'route' for this server (e.g. the one directly connected
* to the local server, which we can use to reach it)
* be referenced by its server name. The AddHashEntry()
* call below automatically inserts each TreeServer class
* into the hash_map as it is created. There is a similar
- * maintainance call in the destructor to tidy up deleted
+ * maintenance call in the destructor to tidy up deleted
* servers.
*/
this->AddHashEntry();
+ Parent->Children.push_back(this);
+
+ FOREACH_MOD_CUSTOM(Utils->Creator->GetLinkEventProvider(), ServerProtocol::LinkEventListener, OnServerLink, (this));
}
-const std::string& TreeServer::GetID()
+void TreeServer::BeginBurst(uint64_t startms)
{
- return sid;
+ behind_bursting++;
+
+ uint64_t now = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
+ // If the start time is in the future (clocks are not synced) then use current time
+ if ((!startms) || (startms > now))
+ startms = now;
+ this->StartBurst = startms;
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Server %s started bursting at time %s behind_bursting %u", GetId().c_str(), ConvToStr(startms).c_str(), behind_bursting);
}
void TreeServer::FinishBurstInternal()
{
- this->bursting = false;
- SetNextPingTime(ServerInstance->Time() + Utils->PingFreq);
- SetPingFlag();
+ // Check is needed because 1202 protocol servers don't send the bursting state of a server, so servers
+ // introduced during a netburst may later send ENDBURST which would normally decrease this counter
+ if (behind_bursting > 0)
+ behind_bursting--;
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "FinishBurstInternal() %s behind_bursting %u", GetName().c_str(), behind_bursting);
+
for (ChildServers::const_iterator i = Children.begin(); i != Children.end(); ++i)
{
TreeServer* child = *i;
void TreeServer::FinishBurst()
{
- FinishBurstInternal();
ServerInstance->XLines->ApplyLines();
- long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
+ uint64_t ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000);
unsigned long bursttime = ts - this->StartBurst;
- ServerInstance->SNO->WriteToSnoMask(Parent == Utils->TreeRoot ? 'l' : 'L', "Received end of netburst from \2%s\2 (burst time: %lu %s)",
- ServerName.c_str(), (bursttime > 10000 ? bursttime / 1000 : bursttime), (bursttime > 10000 ? "secs" : "msecs"));
- AddServerEvent(Utils->Creator, ServerName);
+ ServerInstance->SNO->WriteToSnoMask(Parent == Utils->TreeRoot ? 'l' : 'L', "Received end of netburst from \002%s\002 (burst time: %lu %s)",
+ GetName().c_str(), (bursttime > 10000 ? bursttime / 1000 : bursttime), (bursttime > 10000 ? "secs" : "msecs"));
+ FOREACH_MOD_CUSTOM(Utils->Creator->GetLinkEventProvider(), ServerProtocol::LinkEventListener, OnServerBurst, (this));
+
+ StartBurst = 0;
+ FinishBurstInternal();
}
-int TreeServer::QuitUsers(const std::string &reason)
+void TreeServer::SQuitChild(TreeServer* server, const std::string& reason, bool error)
{
- std::string publicreason = ServerInstance->Config->HideSplits ? "*.net *.split" : reason;
+ stdalgo::erase(Children, server);
- const user_hash& users = *ServerInstance->Users->clientlist;
- unsigned int original_size = users.size();
- for (user_hash::const_iterator i = users.begin(); i != users.end(); )
+ if (IsRoot())
{
- User* user = i->second;
- // Increment the iterator now because QuitUser() removes the user from the container
- ++i;
- if (user->server == ServerName)
- ServerInstance->Users->QuitUser(user, publicreason, &reason);
+ // Server split from us, generate a SQUIT message and broadcast it
+ ServerInstance->SNO->WriteGlobalSno('l', "Server \002" + server->GetName() + "\002 split: " + reason);
+ CmdBuilder("SQUIT").push(server->GetId()).push_last(reason).Broadcast();
+ }
+ else
+ {
+ ServerInstance->SNO->WriteToSnoMask('L', "Server \002" + server->GetName() + "\002 split from server \002" + GetName() + "\002 with reason: " + reason);
}
- return original_size - users.size();
-}
-/** This method is used to add the structure to the
- * hash_map for linear searches. It is only called
- * by the constructors.
- */
-void TreeServer::AddHashEntry()
-{
- Utils->serverlist[ServerName] = this;
- Utils->sidlist[sid] = this;
-}
+ unsigned int num_lost_servers = 0;
+ server->SQuitInternal(num_lost_servers, error);
-/** These accessors etc should be pretty self-
- * explanitory.
- */
-TreeServer* TreeServer::GetRoute()
-{
- return Route;
-}
+ const std::string quitreason = GetName() + " " + server->GetName();
+ unsigned int num_lost_users = QuitUsers(quitreason);
-const std::string& TreeServer::GetDesc()
-{
- return ServerDesc;
-}
+ ServerInstance->SNO->WriteToSnoMask(IsRoot() ? 'l' : 'L', "Netsplit complete, lost \002%u\002 user%s on \002%u\002 server%s.",
+ num_lost_users, num_lost_users != 1 ? "s" : "", num_lost_servers, num_lost_servers != 1 ? "s" : "");
-const std::string& TreeServer::GetVersion()
-{
- return VersionString;
-}
+ // No-op if the socket is already closed (i.e. it called us)
+ if (server->IsLocal())
+ server->GetSocket()->Close();
-void TreeServer::SetNextPingTime(time_t t)
-{
- this->NextPing = t;
- LastPingWasGood = false;
+ // Add the server to the cull list, the servers behind it are handled by cull() and the destructor
+ ServerInstance->GlobalCulls.AddItem(server);
}
-time_t TreeServer::NextPingTime()
+void TreeServer::SQuitInternal(unsigned int& num_lost_servers, bool error)
{
- return NextPing;
-}
+ ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Server %s lost in split", GetName().c_str());
-bool TreeServer::AnsweredLastPing()
-{
- return LastPingWasGood;
-}
+ for (ChildServers::const_iterator i = Children.begin(); i != Children.end(); ++i)
+ {
+ TreeServer* server = *i;
+ server->SQuitInternal(num_lost_servers, error);
+ }
-void TreeServer::SetPingFlag()
-{
- LastPingWasGood = true;
-}
+ // Mark server as dead
+ isdead = true;
+ num_lost_servers++;
+ RemoveHash();
-TreeSocket* TreeServer::GetSocket()
-{
- return Socket;
+ if (!Utils->Creator->dying)
+ FOREACH_MOD_CUSTOM(Utils->Creator->GetLinkEventProvider(), ServerProtocol::LinkEventListener, OnServerSplit, (this, error));
}
-TreeServer* TreeServer::GetParent()
+unsigned int TreeServer::QuitUsers(const std::string& reason)
{
- return Parent;
-}
+ std::string publicreason = Utils->HideSplits ? "*.net *.split" : reason;
-void TreeServer::SetVersion(const std::string &Version)
-{
- VersionString = Version;
+ const user_hash& users = ServerInstance->Users->GetUsers();
+ unsigned int original_size = users.size();
+ for (user_hash::const_iterator i = users.begin(); i != users.end(); )
+ {
+ User* user = i->second;
+ // Increment the iterator now because QuitUser() removes the user from the container
+ ++i;
+ TreeServer* server = TreeServer::Get(user);
+ if (server->IsDead())
+ ServerInstance->Users->QuitUser(user, publicreason, &reason);
+ }
+ return original_size - users.size();
}
-void TreeServer::AddChild(TreeServer* Child)
+void TreeServer::CheckULine()
{
- Children.push_back(Child);
-}
+ uline = silentuline = false;
-bool TreeServer::DelChild(TreeServer* Child)
-{
- std::vector<TreeServer*>::iterator it = std::find(Children.begin(), Children.end(), Child);
- if (it != Children.end())
+ ConfigTagList tags = ServerInstance->Config->ConfTags("uline");
+ for (ConfigIter i = tags.first; i != tags.second; ++i)
{
- Children.erase(it);
- return true;
+ ConfigTag* tag = i->second;
+ std::string server = tag->getString("server");
+ if (irc::equals(server, GetName()))
+ {
+ if (this->IsRoot())
+ {
+ ServerInstance->Logs->Log(MODNAME, LOG_DEFAULT, "Servers should not uline themselves (at " + tag->getTagLocation() + ")");
+ return;
+ }
+
+ uline = true;
+ silentuline = tag->getBool("silent");
+ break;
+ }
}
- return false;
}
-/** Removes child nodes of this node, and of that node, etc etc.
- * This is used during netsplits to automatically tidy up the
- * server tree. It is slow, we don't use it for much else.
+/** This method is used to add the server to the
+ * maps for linear searches. It is only called
+ * by the constructors.
*/
-void TreeServer::Tidy()
+void TreeServer::AddHashEntry()
{
- while (1)
- {
- std::vector<TreeServer*>::iterator a = Children.begin();
- if (a == Children.end())
- return;
- TreeServer* s = *a;
- s->Tidy();
- s->cull();
- Children.erase(a);
- delete s;
- }
+ Utils->serverlist[GetName()] = this;
+ Utils->sidlist[GetId()] = this;
}
CullResult TreeServer::cull()
{
+ // Recursively cull all servers that are under us in the tree
+ for (ChildServers::const_iterator i = Children.begin(); i != Children.end(); ++i)
+ {
+ TreeServer* server = *i;
+ server->cull();
+ }
+
if (!IsRoot())
ServerUser->cull();
return classbase::cull();
TreeServer::~TreeServer()
{
- /* We'd better tidy up after ourselves, eh? */
+ // Recursively delete all servers that are under us in the tree first
+ for (ChildServers::const_iterator i = Children.begin(); i != Children.end(); ++i)
+ delete *i;
+
+ // Delete server user unless it's us
if (!IsRoot())
delete ServerUser;
+}
- Utils->sidlist.erase(sid);
- Utils->serverlist.erase(ServerName);
+void TreeServer::RemoveHash()
+{
+ Utils->sidlist.erase(GetId());
+ Utils->serverlist.erase(GetName());
}
projects / user / henk / code / inspircd.git / blobdiff