X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fm_spanningtree%2Ftreesocket2.cpp;h=34cf318e30d9ec7488d445ca500d89db9b73f53a;hb=1211f840f16bacb21425eedba6794dfc8b39da40;hp=8c332dc635c4b76165bfcbe9a8f313b5665e98d0;hpb=a22c47d19a9388c051dd96d711a0e4a4ef8a8b81;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/m_spanningtree/treesocket2.cpp b/src/modules/m_spanningtree/treesocket2.cpp index 8c332dc63..34cf318e3 100644 --- a/src/modules/m_spanningtree/treesocket2.cpp +++ b/src/modules/m_spanningtree/treesocket2.cpp @@ -11,6 +11,7 @@ * --------------------------------------------------- */ +#include "inspircd.h" #include "configreader.h" #include "users.h" #include "channels.h" @@ -18,7 +19,6 @@ #include "commands/cmd_whois.h" #include "commands/cmd_stats.h" #include "socket.h" -#include "inspircd.h" #include "wildcard.h" #include "xline.h" #include "transport.h" @@ -34,19 +34,22 @@ /* $ModDep: m_spanningtree/timesynctimer.h m_spanningtree/resolvers.h m_spanningtree/main.h m_spanningtree/utils.h m_spanningtree/treeserver.h m_spanningtree/link.h m_spanningtree/treesocket.h */ +static std::map warned; /* Server names that have had protocol violation warnings displayed for them */ + int TreeSocket::WriteLine(std::string line) { - Instance->Log(DEBUG, "-> %s", line.c_str()); + Instance->Log(DEBUG, "S[%d] -> %s", this->GetFd(), line.c_str()); line.append("\r\n"); return this->Write(line); } + /* Handle ERROR command */ bool TreeSocket::Error(std::deque ¶ms) { if (params.size() < 1) return false; - this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str()); + this->Instance->SNO->WriteToSnoMask('l',"ERROR from %s: %s",(!InboundServerName.empty() ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str()); /* we will return false to cause the socket to close. */ return false; } @@ -139,7 +142,7 @@ bool TreeSocket::Motd(const std::string &prefix, std::deque ¶ms Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server); } - par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" End of message of the day."; + par[1] = std::string("::")+Instance->Config->ServerName+" 376 "+source->nick+" :End of message of the day."; Utils->DoOneToOne(this->Instance->Config->ServerName, "PUSH",par, source->server); } } @@ -242,7 +245,28 @@ bool TreeSocket::OperType(const std::string &prefix, std::deque &pa this->Instance->all_opers.push_back(u); strlcpy(u->oper,opertype.c_str(),NICKMAX-1); Utils->DoOneToAllButSender(u->nick,"OPERTYPE",params,u->server); - this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str())); + + TreeServer* remoteserver=Utils->FindServer(u->server); + bool dosend = true; + + if (this->Utils->quiet_bursts) + { + /* + * If quiet bursts are enabled, and server is bursting or silent uline (i.e. services), + * then do nothing. -- w00t + */ + if ( + this->bursting || + Utils->FindRemoteBurstServer(remoteserver) || + this->Instance->SilentULine(this->Instance->FindServerNamePtr(u->server)) + ) + { + dosend = false; + } + } + + if (dosend) + this->Instance->SNO->WriteToSnoMask('o',"From %s: User %s (%s@%s) is now an IRC operator of type %s",u->server, u->nick,u->ident,u->host,irc::Spacify(opertype.c_str())); } return true; } @@ -260,18 +284,26 @@ bool TreeSocket::ForceNick(const std::string &prefix, std::deque &p if (u) { Utils->DoOneToAllButSender(prefix,"SVSNICK",params,prefix); + if (IS_LOCAL(u)) { std::deque par; par.push_back(params[1]); + if (!u->ForceNickChange(params[1].c_str())) { - userrec::QuitUser(this->Instance, u, "Nickname collision"); - return true; + /* buh. UID them */ + if (!u->ForceNickChange(u->uuid)) + { + userrec::QuitUser(this->Instance, u, "Nickname collision"); + return true; + } } + u->age = atoi(params[2].c_str()); } } + return true; } @@ -284,62 +316,19 @@ bool TreeSocket::OperQuit(const std::string &prefix, std::deque &pa if (u) { - Utils->DoOneToAllButSender(prefix,"OPERQUIT",params,prefix); u->SetOperQuit(params[0]); + params[0] = ":" + params[0]; + Utils->DoOneToAllButSender(prefix,"OPERQUIT",params,prefix); } return true; } -/* - * Remote SQUIT (RSQUIT). Routing works similar to SVSNICK: Route it to the server that the target is connected to locally, - * then let that server do the dirty work (squit it!). Example: - * A -> B -> C -> D: oper on A squits D, A routes to B, B routes to C, C notices D connected locally, kills it. -- w00t - */ -bool TreeSocket::RemoteSquit(const std::string &prefix, std::deque ¶ms) +bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque ¶ms) { - /* ok.. :w00t RSQUIT jupe.barafranca.com :reason here */ if (params.size() < 2) return true; - TreeServer* s = Utils->FindServerMask(params[0]); - - if (s) - { - if (s == Utils->TreeRoot) - { - this->Instance->SNO->WriteToSnoMask('l',"What the fuck, I recieved a remote SQUIT for myself? :< (from %s", prefix.c_str()); - return true; - } - - TreeSocket* sock = s->GetSocket(); - - if (sock) - { - /* it's locally connected, KILL IT! */ - Instance->SNO->WriteToSnoMask('l',"RSQUIT: Server \002%s\002 removed from network by %s: %s", params[0].c_str(), prefix.c_str(), params[1].c_str()); - sock->Squit(s,"Server quit by " + prefix + ": " + params[1]); - Instance->SE->DelFd(sock); - sock->Close(); - delete sock; - } - else - { - /* route the rsquit */ - params[1] = ":" + params[1]; - Utils->DoOneToOne(prefix, "RSQUIT", params, params[0]); - } - } - else - { - /* mother fucker! it doesn't exist */ - } - - return true; -} - -bool TreeSocket::ServiceJoin(const std::string &prefix, std::deque ¶ms) -{ - if (params.size() < 2) + if (!this->Instance->IsChannel(params[1].c_str())) return true; userrec* u = this->Instance->FindNick(params[0]); @@ -373,30 +362,25 @@ bool TreeSocket::RemoteRehash(const std::string &prefix, std::deque } bool TreeSocket::RemoteKill(const std::string &prefix, std::deque ¶ms) -{ +{ if (params.size() != 2) return true; - std::string nick = params[0]; - userrec* u = this->Instance->FindNick(prefix); - userrec* who = this->Instance->FindNick(nick); + userrec* who = this->Instance->FindNick(params[0]); if (who) { - /* Prepend kill source, if we don't have one */ - std::string sourceserv = prefix; - if (u) - { - sourceserv = u->server; - } + /* Prepend kill source, if we don't have one */ if (*(params[1].c_str()) != '[') { - params[1] = "[" + sourceserv + "] Killed (" + params[1] +")"; + params[1] = "[" + prefix + "] Killed (" + params[1] +")"; } std::string reason = params[1]; params[1] = ":" + params[1]; - Utils->DoOneToAllButSender(prefix,"KILL",params,sourceserv); - who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str()); + Utils->DoOneToAllButSender(prefix,"KILL",params,prefix); + // NOTE: This is safe with kill hiding on, as RemoteKill is only reached if we have a server prefix. + // in short this is not executed for USERS. + who->Write(":%s KILL %s :%s (%s)", prefix.c_str(), who->nick, prefix.c_str(), reason.c_str()); userrec::QuitUser(this->Instance,who,reason); } return true; @@ -413,7 +397,10 @@ bool TreeSocket::LocalPong(const std::string &prefix, std::deque &p if (ServerSource) { ServerSource->SetPingFlag(); - ServerSource->rtt = Instance->Time() - ServerSource->LastPing; + timeval t; + gettimeofday(&t, NULL); + long ts = (t.tv_sec * 1000) + (t.tv_usec / 1000); + ServerSource->rtt = ts - ServerSource->LastPingMsec; } } else @@ -447,11 +434,13 @@ bool TreeSocket::MetaData(const std::string &prefix, std::deque &pa { if (params.size() < 2) return true; - else + else if (params.size() < 3) params.push_back(""); TreeServer* ServerSource = Utils->FindServer(prefix); if (ServerSource) { + Utils->SetRemoteBursting(ServerSource, false); + if (params[0] == "*") { FOREACH_MOD_I(this->Instance,I_OnDecodeMetaData,OnDecodeMetaData(TYPE_OTHER,NULL,params[1],params[2])); @@ -604,19 +593,20 @@ bool TreeSocket::Whois(const std::string &prefix, std::deque ¶m userrec* x = this->Instance->FindNick(params[0]); char signon[MAXBUF]; char idle[MAXBUF]; - snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon); - snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true))); + snprintf(signon, MAXBUF, "%lu", (unsigned long)x->signon); + snprintf(idle, MAXBUF, "%lu", (unsigned long)abs((x->idle_lastmsg) - Instance->Time(true))); std::deque par; par.push_back(prefix); par.push_back(signon); par.push_back(idle); // ours, we're done, pass it BACK - Utils->DoOneToOne(params[0],"IDLE",par,u->server); + Utils->DoOneToOne(params[0], "IDLE", par, u->server); } else { // not ours pass it on - Utils->DoOneToOne(prefix,"IDLE",params,x->server); + if (x) + Utils->DoOneToOne(prefix, "IDLE", params, x->server); } } else if (params.size() == 3) @@ -630,12 +620,15 @@ bool TreeSocket::Whois(const std::string &prefix, std::deque ¶m unsigned long signon = atoi(params[1].c_str()); unsigned long idle = atoi(params[2].c_str()); if ((who_to_send_to) && (IS_LOCAL(who_to_send_to))) - do_whois(this->Instance,who_to_send_to,u,signon,idle,nick_whoised.c_str()); + { + do_whois(this->Instance, who_to_send_to, u, signon, idle, nick_whoised.c_str()); + } } else { // not ours, pass it on - Utils->DoOneToOne(prefix,"IDLE",params,who_to_send_to->server); + if (who_to_send_to) + Utils->DoOneToOne(prefix, "IDLE", params, who_to_send_to->server); } } } @@ -786,59 +779,98 @@ bool TreeSocket::RemoveStatus(const std::string &prefix, std::deque bool TreeSocket::RemoteServer(const std::string &prefix, std::deque ¶ms) { - if (params.size() < 4) + if (params.size() < 5) return false; std::string servername = params[0]; std::string password = params[1]; // hopcount is not used for a remote server, we calculate this ourselves - std::string description = params[3]; + std::string sid = params[3]; + std::string description = params[4]; TreeServer* ParentOfThis = Utils->FindServer(prefix); if (!ParentOfThis) { - this->WriteLine("ERROR :Protocol error - Introduced remote server from unknown server "+prefix); + this->SendError("Protocol error - Introduced remote server from unknown server "+prefix); return false; } TreeServer* CheckDupe = Utils->FindServer(servername); if (CheckDupe) { - this->WriteLine("ERROR :Server "+servername+" already exists!"); + this->SendError("Server "+servername+" already exists!"); this->Instance->SNO->WriteToSnoMask('l',"Server \2"+servername+"\2 being introduced from \2" + prefix + "\2 denied, already exists. Closing link with " + prefix); return false; } + Link* lnk = Utils->FindLink(servername); - TreeServer* Node = new TreeServer(this->Utils,this->Instance,servername,description,ParentOfThis,NULL, lnk ? lnk->Hidden : false); + + TreeServer *Node = new TreeServer(this->Utils, this->Instance, servername, description, sid, ParentOfThis,NULL, lnk ? lnk->Hidden : false); + + if (Node->DuplicateID()) + { + this->SendError("Server ID "+sid+" already exists on the network!"); + this->Instance->SNO->WriteToSnoMask('l',"Server \2"+servername+"\2 being introduced from \2" + prefix + "\2 denied, server ID already exists on the network. Closing link with " + prefix); + return false; + } + ParentOfThis->AddChild(Node); - params[3] = ":" + params[3]; + params[4] = ":" + params[4]; + Utils->SetRemoteBursting(Node, true); Utils->DoOneToAllButSender(prefix,"SERVER",params,prefix); this->Instance->SNO->WriteToSnoMask('l',"Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")"); return true; } +bool TreeSocket::ComparePass(const std::string &ours, const std::string &theirs) +{ + if ((!strncmp(ours.c_str(), "HMAC-SHA256:", 12)) || (!strncmp(theirs.c_str(), "HMAC-SHA256:", 12))) + { + /* One or both of us specified hmac sha256, but we don't have sha256 module loaded! + * We can't allow this password as valid. + */ + if (!Instance->FindModule("m_sha256.so") || !Utils->ChallengeResponse) + return false; + else + /* Straight string compare of hashes */ + return ours == theirs; + } + else + /* Straight string compare of plaintext */ + return ours == theirs; +} + bool TreeSocket::Outbound_Reply_Server(std::deque ¶ms) { - if (params.size() < 4) + if (params.size() < 5) return false; irc::string servername = params[0].c_str(); std::string sname = params[0]; std::string password = params[1]; + std::string sid = params[3]; + std::string description = params[4]; int hops = atoi(params[2].c_str()); + this->InboundServerName = sname; + this->InboundDescription = description; + this->InboundSID = sid; + + if (!sentcapab) + this->SendCapabilities(); + if (hops) { - this->WriteLine("ERROR :Server too far away for authentication"); + this->SendError("Server too far away for authentication"); this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication"); return false; } - std::string description = params[3]; + for (std::vector::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++) { - if ((x->Name == servername) && (this->MakePass(x->RecvPass,this->GetOurChallenge()) == this->MakePass(password,this->GetOurChallenge()))) + if ((x->Name == servername) && ((ComparePass(this->MakePass(x->RecvPass,this->GetOurChallenge()),password)) || (x->RecvPass == password && (this->GetTheirChallenge().empty())))) { TreeServer* CheckDupe = Utils->FindServer(sname); if (CheckDupe) { - this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!"); + this->SendError("Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!"); this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName()); return false; } @@ -850,44 +882,90 @@ bool TreeSocket::Outbound_Reply_Server(std::deque ¶ms) // we should add the details of this server now // to the servers tree, as a child of the root // node. - TreeServer* Node = new TreeServer(this->Utils,this->Instance,sname,description,Utils->TreeRoot,this,x->Hidden); + + TreeServer *Node = new TreeServer(this->Utils, this->Instance, sname, description, sid, Utils->TreeRoot, this, x->Hidden); + + if (Node->DuplicateID()) + { + this->SendError("Server ID "+sid+" already exists on the network!"); + this->Instance->SNO->WriteToSnoMask('l',"Server \2"+assign(servername)+"\2 being introduced denied, server ID already exists on the network. Closing link."); + return false; + } + Utils->TreeRoot->AddChild(Node); - params[3] = ":" + params[3]; + params[4] = ":" + params[4]; Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,sname); this->bursting = true; this->DoBurst(Node); return true; } } - this->WriteLine("ERROR :Invalid credentials"); + this->SendError("Invalid credentials"); this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials"); return false; } bool TreeSocket::Inbound_Server(std::deque ¶ms) { - if (params.size() < 4) + if (params.size() < 5) return false; irc::string servername = params[0].c_str(); std::string sname = params[0]; std::string password = params[1]; + std::string sid = params[3]; + std::string description = params[4]; + std::string OurSID; int hops = atoi(params[2].c_str()); + this->InboundServerName = sname; + this->InboundDescription = description; + this->InboundSID = sid; + + OurSID += (char)((Instance->Config->sid / 100) + 48); + OurSID += (char)((Instance->Config->sid / 10) % 10 + 48); + OurSID += (char)(Instance->Config->sid % 10 + 48); + + if (!sentcapab) + this->SendCapabilities(); + if (hops) { - this->WriteLine("ERROR :Server too far away for authentication"); + this->SendError("Server too far away for authentication"); this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server is too far away for authentication"); return false; } - std::string description = params[3]; + for (std::vector::iterator x = Utils->LinkBlocks.begin(); x < Utils->LinkBlocks.end(); x++) { - if ((x->Name == servername) && (this->MakePass(x->RecvPass,this->GetOurChallenge()) == this->MakePass(password,this->GetOurChallenge()))) + if ((x->Name == servername) && ((ComparePass(this->MakePass(x->RecvPass,this->GetOurChallenge()),password) || x->RecvPass == password && (this->GetTheirChallenge().empty())))) { + /* First check for instances of the server that are waiting between the inbound and outbound SERVER command */ + TreeSocket* CheckDupeSocket = Utils->FindBurstingServer(sname); + if (CheckDupeSocket) + { + /* If we find one, we abort the link to prevent a race condition */ + this->SendError("Negotiation collision"); + this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists in a negotiating state."); + CheckDupeSocket->SendError("Negotiation collision"); + Instance->SE->DelFd(CheckDupeSocket); + CheckDupeSocket->Close(); + return false; + } + /* Check for fully initialized instances of the server by id */ + Instance->Log(DEBUG,"Looking for dupe SID %s", sid.c_str()); + TreeServer* CheckDupeSID = Utils->FindServerID(sid); + if (CheckDupeSID) + { + this->SendError("Server ID "+CheckDupeSID->GetID()+" already exists on server "+CheckDupeSID->GetName()+"!"); + this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, server ID '"+CheckDupeSID->GetID()+ + "' already exists on server "+CheckDupeSID->GetName()); + return false; + } + /* Now check for fully initialized instances of the server by name */ TreeServer* CheckDupe = Utils->FindServer(sname); if (CheckDupe) { - this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!"); + this->SendError("Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!"); this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName()); return false; } @@ -898,18 +976,17 @@ bool TreeSocket::Inbound_Server(std::deque ¶ms) this->Instance->SNO->WriteToSnoMask('l',"Connection from \2"+sname+"\2["+(x->HiddenFromStats ? "" : this->GetIP())+"] using transport \2"+name+"\2"); } - this->InboundServerName = sname; - this->InboundDescription = description; + Utils->AddBurstingServer(sname,this); + // this is good. Send our details: Our server name and description and hopcount of 0, // along with the sendpass from this block. - if (this->GetOurChallenge().empty()) - this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+this->MakePass(x->SendPass, this->GetTheirChallenge())+" 0 :"+this->Instance->Config->ServerDesc); + this->WriteLine(std::string("SERVER ")+this->Instance->Config->ServerName+" "+this->MakePass(x->SendPass, this->GetTheirChallenge())+" 0 "+OurSID+" :"+this->Instance->Config->ServerDesc); // move to the next state, we are now waiting for THEM. this->LinkState = WAIT_AUTH_2; return true; } } - this->WriteLine("ERROR :Invalid credentials"); + this->SendError("Invalid credentials"); this->Instance->SNO->WriteToSnoMask('l',"Server connection from \2"+sname+"\2 denied, invalid link credentials"); return false; } @@ -920,7 +997,10 @@ void TreeSocket::Split(const std::string &line, std::deque &n) irc::tokenstream tokens(line); std::string param; while (tokens.GetToken(param)) - n.push_back(param); + { + if (!param.empty()) + n.push_back(param); + } return; } @@ -935,10 +1015,13 @@ bool TreeSocket::ProcessLine(std::string &line) if (line.empty()) return true; - Instance->Log(DEBUG, "<- %s", line.c_str()); + Instance->Log(DEBUG, "S[%d] <- %s", this->GetFd(), line.c_str()); this->Split(line.c_str(),params); - + + if (params.empty()) + return true; + if ((params[0][0] == ':') && (params.size() > 1)) { prefix = params[0].substr(1); @@ -970,23 +1053,17 @@ bool TreeSocket::ProcessLine(std::string &line) } else if (command == "USER") { - this->WriteLine("ERROR :Client connections to this port are prohibited."); + this->SendError("Client connections to this port are prohibited."); return false; } else if (command == "CAPAB") { return this->Capab(params); } - else if ((command == "U") || (command == "S")) - { - this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!"); - return false; - } else { - std::string error("ERROR :Invalid command in negotiation phase: "); - error.append(command.c_str()); - this->WriteLine(error); + irc::string error = "Invalid command in negotiation phase: " + command; + this->SendError(assign(error)); return false; } break; @@ -999,11 +1076,6 @@ bool TreeSocket::ProcessLine(std::string &line) // silently ignore. return true; } - else if ((command == "U") || (command == "S")) - { - this->WriteLine("ERROR :Cannot use the old-style mesh linking protocol with m_spanningtree.so!"); - return false; - } else if (command == "BURST") { if (params.size() && Utils->EnableTimeSync) @@ -1011,10 +1083,10 @@ bool TreeSocket::ProcessLine(std::string &line) bool we_have_delta = (Instance->Time(false) != Instance->Time(true)); time_t them = atoi(params[0].c_str()); time_t delta = them - Instance->Time(false); - if ((delta < -300) || (delta > 300)) + if ((delta < -600) || (delta > 600)) { Instance->SNO->WriteToSnoMask('l',"\2ERROR\2: Your clocks are out by %d seconds (this is more than five minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta)); - WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!"); + SendError("Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than five minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!"); return false; } else if ((delta < -30) || (delta > 30)) @@ -1031,12 +1103,22 @@ bool TreeSocket::ProcessLine(std::string &line) } this->LinkState = CONNECTED; Link* lnk = Utils->FindLink(InboundServerName); - Node = new TreeServer(this->Utils,this->Instance, InboundServerName, InboundDescription, Utils->TreeRoot, this, lnk ? lnk->Hidden : false); + + Node = new TreeServer(this->Utils,this->Instance, InboundServerName, InboundDescription, InboundSID, Utils->TreeRoot, this, lnk ? lnk->Hidden : false); + + if (Node->DuplicateID()) + { + this->SendError("Server ID "+InboundSID+" already exists on the network!"); + this->Instance->SNO->WriteToSnoMask('l',"Server \2"+InboundServerName+"\2 being introduced from \2" + prefix + "\2 denied, server ID already exists on the network. Closing link."); + return false; + } + Utils->DelBurstingServer(this); Utils->TreeRoot->AddChild(Node); params.clear(); params.push_back(InboundServerName); params.push_back("*"); params.push_back("1"); + params.push_back(InboundSID); params.push_back(":"+InboundDescription); Utils->DoOneToAllButSender(Utils->TreeRoot->GetName(),"SERVER",params,InboundServerName); this->bursting = true; @@ -1053,7 +1135,7 @@ bool TreeSocket::ProcessLine(std::string &line) break; case LISTENER: - this->WriteLine("ERROR :Internal error -- listening socket accepted its own descriptor!!!"); + this->SendError("Internal error -- listening socket accepted its own descriptor!!!"); return false; break; case CONNECTING: @@ -1070,20 +1152,26 @@ bool TreeSocket::ProcessLine(std::string &line) { return this->Error(params); } + else if (command == "CAPAB") + { + return this->Capab(params); + } break; case CONNECTED: // This is the 'authenticated' state, when all passwords // have been exchanged and anything past this point is taken // as gospel. - if (prefix != "") + if (!prefix.empty()) { std::string direction = prefix; - userrec* t = this->Instance->FindNick(prefix); + + userrec *t = this->Instance->FindUUID(prefix); if (t) { direction = t->server; } + TreeServer* route_back_again = Utils->BestRouteTo(direction); if ((!route_back_again) || (route_back_again->GetSocket() != this)) { @@ -1095,9 +1183,31 @@ bool TreeSocket::ProcessLine(std::string &line) * When there is activity on the socket, reset the ping counter so * that we're not wasting bandwidth pinging an active server. */ - route_back_again->SetNextPingTime(time(NULL) + 60); + route_back_again->SetNextPingTime(time(NULL) + Utils->PingFreq); route_back_again->SetPingFlag(); } + else + { + prefix = this->GetName(); + } + + if ((command == "MODE") && (params.size() >= 2)) + { + chanrec* channel = Instance->FindChan(params[0]); + if (channel) + { + userrec* x = Instance->FindNick(prefix); + if (x) + { + if (warned.find(x->server) == warned.end()) + { + Instance->Log(DEFAULT,"WARNING: I revceived modes '%s' from another server '%s'. This is not compliant with InspIRCd. Please check that server for bugs.", params[1].c_str(), x->server); + Instance->SNO->WriteToSnoMask('d', "WARNING: The server %s is sending nonstandard modes: '%s MODE %s' where FMODE should be used, and may cause desyncs.", x->server, x->nick, params[1].c_str()); + warned[x->server] = x->nick; + } + } + } + } if (command == "SVSMODE") { @@ -1107,16 +1217,19 @@ bool TreeSocket::ProcessLine(std::string &line) */ command = "MODE"; } - std::string target = ""; + std::string target; /* Yes, know, this is a mess. Its reasonably fast though as we're * working with std::string here. */ - if ((command == "NICK") && (params.size() >= 8)) + if (command == "UID") { - return this->IntroduceClient(prefix,params); + return this->ParseUID(prefix, params); } else if (command == "FJOIN") { + TreeServer* ServerSource = Utils->FindServer(prefix); + if (ServerSource) + Utils->SetRemoteBursting(ServerSource, false); return this->ForceJoin(prefix,params); } else if (command == "STATS") @@ -1127,6 +1240,10 @@ bool TreeSocket::ProcessLine(std::string &line) { return this->Motd(prefix, params); } + else if (command == "KILL" && Utils->IsServer(prefix)) + { + return this->RemoteKill(prefix,params); + } else if (command == "MODULES") { return this->Modules(prefix, params); @@ -1149,12 +1266,11 @@ bool TreeSocket::ProcessLine(std::string &line) } else if (command == "FMODE") { + TreeServer* ServerSource = Utils->FindServer(prefix); + if (ServerSource) + Utils->SetRemoteBursting(ServerSource, false); return this->ForceMode(prefix,params); } - else if (command == "KILL") - { - return this->RemoteKill(prefix,params); - } else if (command == "FTOPIC") { return this->ForceTopic(prefix,params); @@ -1173,40 +1289,46 @@ bool TreeSocket::ProcessLine(std::string &line) } else if (command == "PING") { + if (prefix.empty()) + prefix = this->GetName(); /* * We just got a ping from a server that's bursting. * This can't be right, so set them to not bursting, and * apply their lines. */ + TreeServer* ServerSource = Utils->FindServer(prefix); + if (ServerSource) + Utils->SetRemoteBursting(ServerSource, false); + if (this->bursting) { this->bursting = false; Instance->XLines->apply_lines(Utils->lines_to_apply); Utils->lines_to_apply = 0; } - if (prefix == "") - { - prefix = this->GetName(); - } + return this->LocalPing(prefix,params); } else if (command == "PONG") { + if (prefix.empty()) + prefix = this->GetName(); /* * We just got a pong from a server that's bursting. * This can't be right, so set them to not bursting, and * apply their lines. */ + TreeServer* ServerSource = Utils->FindServer(prefix); + if (ServerSource) + Utils->SetRemoteBursting(ServerSource, false); + if (this->bursting) { this->bursting = false; Instance->XLines->apply_lines(Utils->lines_to_apply); Utils->lines_to_apply = 0; } - if (prefix == "") - { - prefix = this->GetName(); - } + return this->LocalPong(prefix,params); } else if (command == "VERSION") @@ -1223,11 +1345,14 @@ bool TreeSocket::ProcessLine(std::string &line) } else if (command == "ADDLINE") { + TreeServer* ServerSource = Utils->FindServer(prefix); + if (ServerSource) + Utils->SetRemoteBursting(ServerSource, false); return this->AddLine(prefix,params); } else if (command == "SVSNICK") { - if (prefix == "") + if (prefix.empty()) { prefix = this->GetName(); } @@ -1237,10 +1362,6 @@ bool TreeSocket::ProcessLine(std::string &line) { return this->OperQuit(prefix,params); } - else if (command == "RSQUIT") - { - return this->RemoteSquit(prefix, params); - } else if (command == "IDLE") { return this->Whois(prefix,params); @@ -1271,7 +1392,7 @@ bool TreeSocket::ProcessLine(std::string &line) delete chan; } } - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) { sourceserv = this->InboundServerName; } @@ -1279,7 +1400,7 @@ bool TreeSocket::ProcessLine(std::string &line) } else if (command == "SVSJOIN") { - if (prefix == "") + if (prefix.empty()) { prefix = this->GetName(); } @@ -1296,7 +1417,7 @@ bool TreeSocket::ProcessLine(std::string &line) else if (command == "OPERNOTICE") { std::string sourceserv = this->myhost; - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) sourceserv = this->InboundServerName; if (params.size() >= 1) Instance->WriteOpers("*** From " + sourceserv + ": " + params[0]); @@ -1305,7 +1426,7 @@ bool TreeSocket::ProcessLine(std::string &line) else if (command == "MODENOTICE") { std::string sourceserv = this->myhost; - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) sourceserv = this->InboundServerName; if (params.size() >= 2) { @@ -1316,7 +1437,7 @@ bool TreeSocket::ProcessLine(std::string &line) else if (command == "SNONOTICE") { std::string sourceserv = this->myhost; - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) sourceserv = this->InboundServerName; if (params.size() >= 2) { @@ -1330,10 +1451,8 @@ bool TreeSocket::ProcessLine(std::string &line) Instance->XLines->apply_lines(Utils->lines_to_apply); Utils->lines_to_apply = 0; std::string sourceserv = this->myhost; - if (this->InboundServerName != "") - { + if (!this->InboundServerName.empty()) sourceserv = this->InboundServerName; - } this->Instance->SNO->WriteToSnoMask('l',"Received end of netburst from \2%s\2",sourceserv.c_str()); Event rmode((char*)sourceserv.c_str(), (Module*)Utils->Creator, "new_server"); @@ -1343,12 +1462,14 @@ bool TreeSocket::ProcessLine(std::string &line) } else { - // not a special inter-server command. - // Emulate the actual user doing the command, - // this saves us having a huge ugly parser. - userrec* who = this->Instance->FindNick(prefix); + /* + * Not a special s2s command. Emulate the user doing it. + * This saves us having a huge ugly command parser again. + */ + userrec *who = this->Instance->FindUUID(prefix); + std::string sourceserv = this->myhost; - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) { sourceserv = this->InboundServerName; } @@ -1356,7 +1477,7 @@ bool TreeSocket::ProcessLine(std::string &line) { if (Utils->IsServer(prefix)) { - const char* modelist[127]; + const char* modelist[MAXPARAMETERS]; for (size_t i = 0; i < params.size(); i++) modelist[i] = params[i].c_str(); userrec* fake = new userrec(Instance); @@ -1381,11 +1502,11 @@ bool TreeSocket::ProcessLine(std::string &line) { std::deque p; p.push_back(params[0]); - p.push_back("Nickname collision ("+prefix+" -> "+params[0]+")"); + p.push_back(":Nickname collision ("+prefix+" -> "+params[0]+")"); Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p); p.clear(); p.push_back(prefix); - p.push_back("Nickname collision"); + p.push_back(":Nickname collision"); Utils->DoOneToMany(this->Instance->Config->ServerName,"KILL",p); userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")"); userrec* y = this->Instance->FindNick(prefix); @@ -1406,7 +1527,7 @@ bool TreeSocket::ProcessLine(std::string &line) switch (this->Instance->CallCommandHandler(command.c_str(), strparams, params.size(), who)) { case CMD_INVALID: - this->WriteLine("ERROR :Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules"); + this->SendError("Unrecognised command '"+std::string(command.c_str())+"' -- possibly loaded mismatched modules"); return false; break; case CMD_FAILURE: @@ -1437,7 +1558,7 @@ bool TreeSocket::ProcessLine(std::string &line) std::string TreeSocket::GetName() { std::string sourceserv = this->myhost; - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) { sourceserv = this->InboundServerName; } @@ -1448,7 +1569,7 @@ void TreeSocket::OnTimeout() { if (this->LinkState == CONNECTING) { - this->Instance->SNO->WriteToSnoMask('l',"CONNECT: Connection to \002"+myhost+"\002 timed out."); + Utils->Creator->RemoteMessage(NULL, "CONNECT: Connection to \002%s\002 timed out.", myhost.c_str()); Link* MyLink = Utils->FindLink(myhost); if (MyLink) Utils->DoFailOver(MyLink); @@ -1457,11 +1578,14 @@ void TreeSocket::OnTimeout() void TreeSocket::OnClose() { + if (this->LinkState == LISTENER) + return; + // Connection closed. // If the connection is fully up (state CONNECTED) // then propogate a netsplit to all peers. std::string quitserver = this->myhost; - if (this->InboundServerName != "") + if (!this->InboundServerName.empty()) { quitserver = this->InboundServerName; } @@ -1471,8 +1595,13 @@ void TreeSocket::OnClose() Squit(s,"Remote host closed the connection"); } - if (quitserver != "") - this->Instance->SNO->WriteToSnoMask('l',"Connection to '\2%s\2' failed.",quitserver.c_str()); + if (!quitserver.empty()) + { + Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' failed.",quitserver.c_str()); + time_t server_uptime = Instance->Time() - this->age; + if (server_uptime) + Utils->Creator->RemoteMessage(NULL,"Connection to '\2%s\2' was established for %s", quitserver.c_str(), Utils->Creator->TimeToStr(server_uptime).c_str()); + } } int TreeSocket::OnIncomingConnection(int newsock, char* ip) @@ -1492,7 +1621,7 @@ int TreeSocket::OnIncomingConnection(int newsock, char* ip) if (!found) { - this->Instance->SNO->WriteToSnoMask('l',"Server connection from %s denied (no link blocks with that IP address)", ip); + Utils->Creator->RemoteMessage(NULL,"Server connection from %s denied (no link blocks with that IP address)", ip); close(newsock); return false; }