X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_spanningtree%2Ftreeserver.cpp;h=5a2d4f8861b74757bdf990b163179beabb770e49;hb=001e9c1372a1c6fc2877f9d6607cf662f09228df;hp=65e1191495fe5d4b59157a4e310c1f06f4474c20;hpb=97e8518c1961c3d1ff7b3a0ad4e04ee2880c1fc4;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_spanningtree/treeserver.cpp b/src/modules/m_spanningtree/treeserver.cpp index 65e119149..5a2d4f886 100644 --- a/src/modules/m_spanningtree/treeserver.cpp +++ b/src/modules/m_spanningtree/treeserver.cpp @@ -21,56 +21,42 @@ #include "inspircd.h" -#include "socket.h" #include "xline.h" #include "main.h" -#include "../spanningtree.h" +#include "modules/spanningtree.h" #include "utils.h" #include "treeserver.h" -/* $ModDep: m_spanningtree/utils.h m_spanningtree/treeserver.h */ - /** We use this constructor only to create the 'root' item, Utils->TreeRoot, which * represents our own server. Therefore, it has no route, no parent, and * no socket associated with it. Its version string is our own local version. */ -TreeServer::TreeServer(SpanningTreeUtilities* Util, std::string Name, std::string Desc, const std::string &id) - : ServerName(Name.c_str()), ServerDesc(Desc), Utils(Util), ServerUser(ServerInstance->FakeClient) +TreeServer::TreeServer() + : Server(ServerInstance->Config->ServerName, ServerInstance->Config->ServerDesc) + , Parent(NULL), Route(NULL) + , VersionString(ServerInstance->GetVersionString()) + , fullversion(ServerInstance->GetVersionString(true)) + , Socket(NULL), sid(ServerInstance->Config->GetSID()), behind_bursting(0), ServerUser(ServerInstance->FakeClient) + , age(ServerInstance->Time()), Warned(false), UserCount(ServerInstance->Users.GetLocalUsers().size()) + , OperCount(0), rtt(0), StartBurst(0), Hidden(false) { - age = ServerInstance->Time(); - bursting = false; - Parent = NULL; - VersionString.clear(); - ServerUserCount = ServerOperCount = 0; - VersionString = ServerInstance->GetVersionString(); - Route = NULL; - Socket = NULL; /* Fix by brain */ - StartBurst = rtt = 0; - Warned = Hidden = false; AddHashEntry(); - SetID(id); } /** 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. */ -TreeServer::TreeServer(SpanningTreeUtilities* Util, std::string Name, std::string Desc, const std::string &id, TreeServer* Above, TreeSocket* Sock, bool Hide) - : Parent(Above), ServerName(Name.c_str()), ServerDesc(Desc), Socket(Sock), Utils(Util), ServerUser(new FakeUser(id, Name)), Hidden(Hide) +TreeServer::TreeServer(const std::string& Name, const std::string& Desc, const std::string& id, TreeServer* Above, TreeSocket* Sock, bool Hide) + : Server(Name, Desc) + , Parent(Above), Socket(Sock), sid(id), behind_bursting(Parent->behind_bursting), ServerUser(new FakeUser(id, this)) + , age(ServerInstance->Time()), Warned(false), UserCount(0), OperCount(0), rtt(0), StartBurst(0), Hidden(Hide) { - age = ServerInstance->Time(); - bursting = true; - VersionString.clear(); - ServerUserCount = ServerOperCount = 0; + ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "New server %s behind_bursting %u", GetName().c_str(), behind_bursting); + CheckULine(); SetNextPingTime(ServerInstance->Time() + Utils->PingFreq); SetPingFlag(); - Warned = false; - rtt = 0; - - long ts = ServerInstance->Time() * 1000 + (ServerInstance->Time_ns() / 1000000); - this->StartBurst = ts; - ServerInstance->Logs->Log("m_spanningtree",DEBUG, "Started bursting at time %lu", ts); /* find the 'route' for this server (e.g. the one directly connected * to the local server, which we can use to reach it) @@ -124,8 +110,19 @@ TreeServer::TreeServer(SpanningTreeUtilities* Util, std::string Name, std::strin */ this->AddHashEntry(); + Parent->AddChild(this); +} - SetID(id); +void TreeServer::BeginBurst(unsigned long startms) +{ + behind_bursting++; + + unsigned long 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 %lu behind_bursting %u", sid.c_str(), startms, behind_bursting); } const std::string& TreeServer::GetID() @@ -135,60 +132,129 @@ const std::string& TreeServer::GetID() void TreeServer::FinishBurstInternal() { - this->bursting = false; - SetNextPingTime(ServerInstance->Time() + Utils->PingFreq); - SetPingFlag(); - for(unsigned int q=0; q < ChildCount(); q++) + // 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); + + if (!IsBehindBursting()) + { + SetNextPingTime(ServerInstance->Time() + Utils->PingFreq); + SetPingFlag(); + } + for (ChildServers::const_iterator i = Children.begin(); i != Children.end(); ++i) { - TreeServer* child = GetChild(q); + TreeServer* child = *i; child->FinishBurstInternal(); } } void TreeServer::FinishBurst() { - FinishBurstInternal(); ServerInstance->XLines->ApplyLines(); long 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.c_str()); + GetName().c_str(), (bursttime > 10000 ? bursttime / 1000 : bursttime), (bursttime > 10000 ? "secs" : "msecs")); + AddServerEvent(Utils->Creator, GetName()); + + StartBurst = 0; + FinishBurstInternal(); } -void TreeServer::SetID(const std::string &id) +void TreeServer::SQuitChild(TreeServer* server, const std::string& reason) { - ServerInstance->Logs->Log("m_spanningtree",DEBUG, "Setting SID to " + id); - sid = id; - Utils->sidlist[sid] = this; + DelServerEvent(Utils->Creator, server->GetName()); + DelChild(server); + + if (IsRoot()) + { + // 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); + } + + int num_lost_servers = 0; + int num_lost_users = 0; + const std::string quitreason = GetName() + " " + server->GetName(); + + ModuleSpanningTree* st = Utils->Creator; + st->SplitInProgress = true; + server->SQuitInternal(quitreason, num_lost_servers, num_lost_users); + st->SplitInProgress = false; + + ServerInstance->SNO->WriteToSnoMask(IsRoot() ? '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" : ""); + + server->Tidy(); + + // No-op if the socket is already closed (i.e. it called us) + if (server->IsLocal()) + server->GetSocket()->Close(); + + server->cull(); + delete server; +} + +void TreeServer::SQuitInternal(const std::string& reason, int& num_lost_servers, int& num_lost_users) +{ + ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Server %s lost in split", GetName().c_str()); + + for (ChildServers::const_iterator i = Children.begin(); i != Children.end(); ++i) + { + TreeServer* server = *i; + server->SQuitInternal(reason, num_lost_servers, num_lost_users); + } + + num_lost_servers++; + num_lost_users += QuitUsers(reason); + RemoveHash(); } int TreeServer::QuitUsers(const std::string &reason) { - const char* reason_s = reason.c_str(); - std::vector time_to_die; - for (user_hash::iterator n = ServerInstance->Users->clientlist->begin(); n != ServerInstance->Users->clientlist->end(); n++) + std::string publicreason = ServerInstance->Config->HideSplits ? "*.net *.split" : reason; + + const user_hash& users = ServerInstance->Users->GetUsers(); + unsigned int original_size = users.size(); + for (user_hash::const_iterator i = users.begin(); i != users.end(); ) { - if (n->second->server == ServerName) - { - time_to_die.push_back(n->second); - } + User* user = i->second; + // Increment the iterator now because QuitUser() removes the user from the container + ++i; + if (user->server == this) + ServerInstance->Users->QuitUser(user, publicreason, &reason); } - for (std::vector::iterator n = time_to_die.begin(); n != time_to_die.end(); n++) + return original_size - users.size(); +} + +void TreeServer::CheckULine() +{ + uline = silentuline = false; + + ConfigTagList tags = ServerInstance->Config->ConfTags("uline"); + for (ConfigIter i = tags.first; i != tags.second; ++i) { - User* a = (User*)*n; - if (!IS_LOCAL(a)) + ConfigTag* tag = i->second; + std::string server = tag->getString("server"); + if (!strcasecmp(server.c_str(), GetName().c_str())) { - if (this->Utils->quiet_bursts) - a->quietquit = true; - - if (ServerInstance->Config->HideSplits) - ServerInstance->Users->QuitUser(a, "*.net *.split", reason_s); - else - ServerInstance->Users->QuitUser(a, reason_s); + 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 time_to_die.size(); } /** This method is used to add the structure to the @@ -197,20 +263,8 @@ int TreeServer::QuitUsers(const std::string &reason) */ void TreeServer::AddHashEntry() { - server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str()); - if (iter == Utils->serverlist.end()) - Utils->serverlist[this->ServerName.c_str()] = this; -} - -/** This method removes the reference to this object - * from the hash_map which is used for linear searches. - * It is only called by the default destructor. - */ -void TreeServer::DelHashEntry() -{ - server_hash::iterator iter = Utils->serverlist.find(this->ServerName.c_str()); - if (iter != Utils->serverlist.end()) - Utils->serverlist.erase(iter); + Utils->serverlist[GetName()] = this; + Utils->sidlist[sid] = this; } /** These accessors etc should be pretty self- @@ -221,16 +275,6 @@ TreeServer* TreeServer::GetRoute() return Route; } -std::string TreeServer::GetName() -{ - return ServerName.c_str(); -} - -const std::string& TreeServer::GetDesc() -{ - return ServerDesc; -} - const std::string& TreeServer::GetVersion() { return VersionString; @@ -257,26 +301,6 @@ void TreeServer::SetPingFlag() LastPingWasGood = true; } -unsigned int TreeServer::GetUserCount() -{ - return ServerUserCount; -} - -void TreeServer::SetUserCount(int diff) -{ - ServerUserCount += diff; -} - -void TreeServer::SetOperCount(int diff) -{ - ServerOperCount += diff; -} - -unsigned int TreeServer::GetOperCount() -{ - return ServerOperCount; -} - TreeSocket* TreeServer::GetSocket() { return Socket; @@ -292,28 +316,6 @@ void TreeServer::SetVersion(const std::string &Version) VersionString = Version; } -unsigned int TreeServer::ChildCount() -{ - return Children.size(); -} - -TreeServer* TreeServer::GetChild(unsigned int n) -{ - if (n < Children.size()) - { - /* Make sure they cant request - * an out-of-range object. After - * all we know what these programmer - * types are like *grin*. - */ - return Children[n]; - } - else - { - return NULL; - } -} - void TreeServer::AddChild(TreeServer* Child) { Children.push_back(Child); @@ -321,13 +323,11 @@ void TreeServer::AddChild(TreeServer* Child) bool TreeServer::DelChild(TreeServer* Child) { - for (std::vector::iterator a = Children.begin(); a != Children.end(); a++) + std::vector::iterator it = std::find(Children.begin(), Children.end(), Child); + if (it != Children.end()) { - if (*a == Child) - { - Children.erase(a); - return true; - } + Children.erase(it); + return true; } return false; } @@ -336,13 +336,13 @@ bool TreeServer::DelChild(TreeServer* Child) * This is used during netsplits to automatically tidy up the * server tree. It is slow, we don't use it for much else. */ -bool TreeServer::Tidy() +void TreeServer::Tidy() { while (1) { std::vector::iterator a = Children.begin(); if (a == Children.end()) - return true; + return; TreeServer* s = *a; s->Tidy(); s->cull(); @@ -353,7 +353,7 @@ bool TreeServer::Tidy() CullResult TreeServer::cull() { - if (ServerUser != ServerInstance->FakeClient) + if (!IsRoot()) ServerUser->cull(); return classbase::cull(); } @@ -361,11 +361,12 @@ CullResult TreeServer::cull() TreeServer::~TreeServer() { /* We'd better tidy up after ourselves, eh? */ - this->DelHashEntry(); - if (ServerUser != ServerInstance->FakeClient) + if (!IsRoot()) delete ServerUser; +} - server_hash::iterator iter = Utils->sidlist.find(GetID()); - if (iter != Utils->sidlist.end()) - Utils->sidlist.erase(iter); +void TreeServer::RemoveHash() +{ + Utils->sidlist.erase(sid); + Utils->serverlist.erase(GetName()); }