]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_spanningtree.cpp
cmode(), cflags(), cstatus() -> chanrec::GetStatusChar(), chanrec::GetStatusFlags...
[user/henk/code/inspircd.git] / src / modules / m_spanningtree.cpp
index e98b7b4602e1e860ef79523616f51354d077383b..19a21717802a88afeda6984629427df772d0d553 100644 (file)
@@ -65,11 +65,13 @@ using namespace std;
  * we can resort to recursion to walk the tree structure.
  */
 
+using irc::sockets::MatchCIDR;
+
 class ModuleSpanningTree;
 static ModuleSpanningTree* TreeProtocolModule;
 
-extern ServerConfig* Config;
 extern InspIRCd* ServerInstance;
+
 extern std::vector<Module*> modules;
 extern std::vector<ircd_module*> factory;
 extern int MODCOUNT;
@@ -91,10 +93,6 @@ extern int MODCOUNT;
  */
 enum ServerState { LISTENER, CONNECTING, WAIT_AUTH_1, WAIT_AUTH_2, CONNECTED };
 
-/* We need to import these from the core for use in netbursts */
-extern user_hash clientlist;
-extern chan_hash chanlist;
-
 /* Foward declarations */
 class TreeServer;
 class TreeSocket;
@@ -230,7 +228,7 @@ class TreeServer : public classbase
                ServerDesc = "";
                VersionString = "";
                UserCount = OperCount = 0;
-               VersionString = Srv->GetVersion();
+               VersionString = ServerInstance->GetVersionString();
        }
 
        /* We use this constructor only to create the 'root' item, TreeRoot, which
@@ -242,7 +240,7 @@ class TreeServer : public classbase
                Parent = NULL;
                VersionString = "";
                UserCount = OperCount = 0;
-               VersionString = Srv->GetVersion();
+               VersionString = ServerInstance->GetVersionString();
                Route = NULL;
                Socket = NULL; /* Fix by brain */
                AddHashEntry();
@@ -318,7 +316,7 @@ class TreeServer : public classbase
                log(DEBUG,"Removing all users from server %s",this->ServerName.c_str());
                const char* reason_s = reason.c_str();
                std::vector<userrec*> time_to_die;
-               for (user_hash::iterator n = clientlist.begin(); n != clientlist.end(); n++)
+               for (user_hash::iterator n = ServerInstance->clientlist.begin(); n != ServerInstance->clientlist.end(); n++)
                {
                        if (!strcmp(n->second->server, this->ServerName.c_str()))
                        {
@@ -330,7 +328,7 @@ class TreeServer : public classbase
                        userrec* a = (userrec*)*n;
                        log(DEBUG,"Kill %s fd=%d",a->nick,a->fd);
                        if (!IS_LOCAL(a))
-                               kill_link(a,reason_s);
+                               userrec::QuitUser(ServerInstance,a,reason_s);
                }
                return time_to_die.size();
        }
@@ -614,12 +612,12 @@ class cmd_rconnect : public command_t
 
        void Handle (const char** parameters, int pcnt, userrec *user)
        {
-               WriteServ(user->fd,"NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
+               user->WriteServ("NOTICE %s :*** RCONNECT: Sending remote connect to \002%s\002 to connect server \002%s\002.",user->nick,parameters[0],parameters[1]);
                /* Is this aimed at our server? */
                if (Srv->MatchText(Srv->GetServerName(),parameters[0]))
                {
                        /* Yes, initiate the given connect */
-                       WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
+                       ServerInstance->WriteOpers("*** Remote CONNECT from %s matching \002%s\002, connecting server \002%s\002",user->nick,parameters[0],parameters[1]);
                        const char* para[1];
                        para[0] = parameters[1];
                        Creator->OnPreCommand("CONNECT", para, 1, user, true);
@@ -664,8 +662,8 @@ class TreeSocket : public InspSocket
         * most of the action, and append a few of our own values
         * to it.
         */
-       TreeSocket(std::string host, int port, bool listening, unsigned long maxtime)
-               : InspSocket(host, port, listening, maxtime)
+       TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime)
+               : InspSocket(SI, host, port, listening, maxtime)
        {
                myhost = host;
                this->LinkState = LISTENER;
@@ -673,8 +671,8 @@ class TreeSocket : public InspSocket
                this->ctx_out = NULL;
        }
 
-       TreeSocket(std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
-               : InspSocket(host, port, listening, maxtime)
+       TreeSocket(InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, std::string ServerName)
+               : InspSocket(SI, host, port, listening, maxtime)
        {
                myhost = ServerName;
                this->LinkState = CONNECTING;
@@ -686,8 +684,8 @@ class TreeSocket : public InspSocket
         * we must associate it with a socket without creating a new
         * connection. This constructor is used for this purpose.
         */
-       TreeSocket(int newfd, char* ip)
-               : InspSocket(newfd, ip)
+       TreeSocket(InspIRCd* SI, int newfd, char* ip)
+               : InspSocket(SI, newfd, ip)
        {
                this->LinkState = WAIT_AUTH_1;
                this->ctx_in = NULL;
@@ -715,12 +713,12 @@ class TreeSocket : public InspSocket
                keylength = key.length();
                if (!(keylength == 16 || keylength == 24 || keylength == 32))
                {
-                       WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
+                       ServerInstance->WriteOpers("*** \2ERROR\2: Key length for encryptionkey is not 16, 24 or 32 bytes in length!");
                        log(DEBUG,"Key length not 16, 24 or 32 characters!");
                }
                else
                {
-                       WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
+                       ServerInstance->WriteOpers("*** \2AES\2: Initialized %d bit encryption to server %s",keylength*8,SName.c_str());
                        ctx_in->MakeKey(key.c_str(), "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
                                \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", keylength, keylength);
                        ctx_out->MakeKey(key.c_str(), "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
@@ -743,13 +741,13 @@ class TreeSocket : public InspSocket
                        {
                                if (x->Name == this->myhost)
                                {
-                                       Srv->SendOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
+                                       ServerInstance->WriteOpers("*** Connection to \2"+myhost+"\2["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] established.");
                                        this->SendCapabilities();
                                        if (x->EncryptionKey != "")
                                        {
                                                if (!(x->EncryptionKey.length() == 16 || x->EncryptionKey.length() == 24 || x->EncryptionKey.length() == 32))
                                                {
-                                                       WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
+                                                       ServerInstance->WriteOpers("\2WARNING\2: Your encryption key is NOT 16, 24 or 32 characters in length, encryption will \2NOT\2 be enabled.");
                                                }
                                                else
                                                {
@@ -768,7 +766,7 @@ class TreeSocket : public InspSocket
                 * If that happens the connection hangs here until it's closed. Unlikely
                 * and rather harmless.
                 */
-               Srv->SendOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
+               ServerInstance->WriteOpers("*** Connection to \2"+myhost+"\2 lost link tag(!)");
                return true;
        }
        
@@ -780,7 +778,7 @@ class TreeSocket : public InspSocket
                 */
                if (e == I_ERR_CONNECT)
                {
-                       Srv->SendOpers("*** Connection failed: Connection refused");
+                       ServerInstance->WriteOpers("*** Connection failed: Connection refused");
                }
        }
 
@@ -820,14 +818,13 @@ class TreeSocket : public InspSocket
 
        std::string MyCapabilities()
        {
-               ServerConfig* Config = Srv->GetConfig();
                std::vector<std::string> modlist;
                std::string capabilities = "";
 
                for (int i = 0; i <= MODCOUNT; i++)
                {
                        if ((modules[i]->GetVersion().Flags & VF_STATIC) || (modules[i]->GetVersion().Flags & VF_COMMON))
-                               modlist.push_back(Config->module_names[i]);
+                               modlist.push_back(ServerInstance->Config->module_names[i]);
                }
                sort(modlist.begin(),modlist.end());
                for (unsigned int i = 0; i < modlist.size(); i++)
@@ -860,10 +857,10 @@ class TreeSocket : public InspSocket
                                quitserver = this->InboundServerName;
                        }
 
-                       WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
-                       WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
-                       WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
-                       WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
+                       ServerInstance->WriteOpers("*** \2ERROR\2: Server '%s' does not have the same set of modules loaded, cannot link!",quitserver.c_str());
+                       ServerInstance->WriteOpers("*** Our networked module set is: '%s'",this->MyCapabilities().c_str());
+                       ServerInstance->WriteOpers("*** Other server's networked module set is: '%s'",params[0].c_str());
+                       ServerInstance->WriteOpers("*** These lists must match exactly on both servers. Please correct these errors, and try again.");
                        this->WriteLine("ERROR :CAPAB mismatch; My capabilities: '"+this->MyCapabilities()+"'");
                        return false;
                }
@@ -907,11 +904,11 @@ class TreeSocket : public InspSocket
                        DoOneToAllButSender(Current->GetParent()->GetName(),"SQUIT",params,Current->GetName());
                        if (Current->GetParent() == TreeRoot)
                        {
-                               Srv->SendOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
+                               ServerInstance->WriteOpers("Server \002"+Current->GetName()+"\002 split: "+reason);
                        }
                        else
                        {
-                               Srv->SendOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
+                               ServerInstance->WriteOpers("Server \002"+Current->GetName()+"\002 split from server \002"+Current->GetParent()->GetName()+"\002 with reason: "+reason);
                        }
                        num_lost_servers = 0;
                        num_lost_users = 0;
@@ -920,7 +917,7 @@ class TreeSocket : public InspSocket
                        Current->Tidy();
                        Current->GetParent()->DelChild(Current);
                        DELETE(Current);
-                       WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
+                       ServerInstance->WriteOpers("Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
                }
                else
                {
@@ -942,7 +939,7 @@ class TreeSocket : public InspSocket
                std::string sourceserv;
 
                /* Are we dealing with an FMODE from a user, or from a server? */
-               userrec* who = Srv->FindNick(source);
+               userrec* who = ServerInstance->FindNick(source);
                if (who)
                {
                        /* FMODE from a user, set sourceserv to the users server name */
@@ -951,7 +948,7 @@ class TreeSocket : public InspSocket
                else
                {
                        /* FMODE from a server, create a fake user to receive mode feedback */
-                       who = new userrec();
+                       who = new userrec(ServerInstance);
                        who->fd = FD_MAGIC_NUMBER;
                        smode = true;           /* Setting this flag tells us we should free the userrec later */
                        sourceserv = source;    /* Set sourceserv to the actual source string */
@@ -978,7 +975,7 @@ class TreeSocket : public InspSocket
                                
                }
                 /* Extract the TS value of the object, either userrec or chanrec */
-               userrec* dst = Srv->FindNick(params[0]);
+               userrec* dst = ServerInstance->FindNick(params[0]);
                chanrec* chan = NULL;
                time_t ourTS = 0;
                if (dst)
@@ -987,7 +984,7 @@ class TreeSocket : public InspSocket
                }
                else
                {
-                       chan = Srv->FindChannel(params[0]);
+                       chan = ServerInstance->FindChan(params[0]);
                        if (chan)
                        {
                                ourTS = chan->age;
@@ -1294,7 +1291,7 @@ class TreeSocket : public InspSocket
                         */
                        if ((Srv->IsUlined(sourceserv)) && (TS > ourTS))
                        {
-                               WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
+                               ServerInstance->WriteOpers("\2WARNING!\2 U-Lined server '%s' has bad TS for '%s' (accepted change): \2SYNC YOUR CLOCKS\2 to avoid this notice",sourceserv.c_str(),params[0].c_str());
                        }
                        /* Allow the mode, route it to either server or user command handling */
                        if (smode)
@@ -1320,7 +1317,7 @@ class TreeSocket : public InspSocket
                time_t ts = atoi(params[1].c_str());
                std::string nsource = source;
 
-               chanrec* c = Srv->FindChannel(params[0]);
+               chanrec* c = ServerInstance->FindChan(params[0]);
                if (c)
                {
                        if ((ts >= c->topicset) || (!*c->topic))
@@ -1335,14 +1332,14 @@ class TreeSocket : public InspSocket
                                 */
                                if (oldtopic != params[3])
                                {
-                                       userrec* user = Srv->FindNick(source);
+                                       userrec* user = ServerInstance->FindNick(source);
                                        if (!user)
                                        {
-                                               WriteChannelWithServ(source.c_str(), c, "TOPIC %s :%s", c->name, c->topic);
+                                               c->WriteChannelWithServ(source.c_str(), "TOPIC %s :%s", c->name, c->topic);
                                        }
                                        else
                                        {
-                                               WriteChannel(c, user, "TOPIC %s :%s", c->name, c->topic);
+                                               c->WriteChannel(user, "TOPIC %s :%s", c->name, c->topic);
                                                nsource = user->server;
                                        }
                                        /* all done, send it on its way */
@@ -1376,7 +1373,7 @@ class TreeSocket : public InspSocket
                time_t TS = atoi(params[1].c_str());
                char* key = "";
                
-               chanrec* chan = Srv->FindChannel(channel);
+               chanrec* chan = ServerInstance->FindChan(channel);
                if (chan)
                {
                        key = chan->key;
@@ -1387,7 +1384,7 @@ class TreeSocket : public InspSocket
                 * channel will let the other side apply their modes.
                 */
                time_t ourTS = time(NULL)+600;
-               chanrec* us = Srv->FindChannel(channel);
+               chanrec* us = ServerInstance->FindChan(channel);
                if (us)
                {
                        ourTS = us->age;
@@ -1427,10 +1424,10 @@ class TreeSocket : public InspSocket
                                                strlcat(modestring,"v",MAXBUF);
                                        break;
                                }
-                               who = Srv->FindNick(usr);
+                               who = ServerInstance->FindNick(usr);
                                if (who)
                                {
-                                       Srv->JoinUserToChannel(who,channel,key);
+                                       chanrec::JoinUser(this->Instance, who, channel.c_str(), true, key);
                                        if (modectr >= (MAXMODES-1))
                                        {
                                                /* theres a mode for this user. push them onto the mode queue, and flush it
@@ -1512,7 +1509,7 @@ class TreeSocket : public InspSocket
        {
                if (params.size() >= 2)
                {
-                       chanrec* c = Srv->FindChannel(params[0]);
+                       chanrec* c = ServerInstance->FindChan(params[0]);
                        if (c)
                        {
                                time_t theirTS = atoi(params[1].c_str());
@@ -1550,9 +1547,9 @@ class TreeSocket : public InspSocket
                const char* tempnick = params[1].c_str();
                log(DEBUG,"Introduce client %s!%s@%s",tempnick,params[4].c_str(),params[2].c_str());
                
-               user_hash::iterator iter = clientlist.find(tempnick);
+               user_hash::iterator iter = this->Instance->clientlist.find(tempnick);
                
-               if (iter != clientlist.end())
+               if (iter != this->Instance->clientlist.end())
                {
                        // nick collision
                        log(DEBUG,"Nick collision on %s!%s@%s: %lu %lu",tempnick,params[4].c_str(),params[2].c_str(),(unsigned long)age,(unsigned long)iter->second->age);
@@ -1560,28 +1557,27 @@ class TreeSocket : public InspSocket
                        return true;
                }
 
-               clientlist[tempnick] = new userrec();
-               clientlist[tempnick]->fd = FD_MAGIC_NUMBER;
-               strlcpy(clientlist[tempnick]->nick, tempnick,NICKMAX-1);
-               strlcpy(clientlist[tempnick]->host, params[2].c_str(),63);
-               strlcpy(clientlist[tempnick]->dhost, params[3].c_str(),63);
-               clientlist[tempnick]->server = FindServerNamePtr(source.c_str());
-               strlcpy(clientlist[tempnick]->ident, params[4].c_str(),IDENTMAX);
-               strlcpy(clientlist[tempnick]->fullname, params[7].c_str(),MAXGECOS);
-               clientlist[tempnick]->registered = REG_ALL;
-               clientlist[tempnick]->signon = age;
+               userrec* _new = new userrec(this->Instance);
+               this->Instance->clientlist[tempnick] = _new;
+               _new->fd = FD_MAGIC_NUMBER;
+               strlcpy(_new->nick, tempnick,NICKMAX-1);
+               strlcpy(_new->host, params[2].c_str(),63);
+               strlcpy(_new->dhost, params[3].c_str(),63);
+               _new->server = this->Instance->FindServerNamePtr(source.c_str());
+               strlcpy(_new->ident, params[4].c_str(),IDENTMAX);
+               strlcpy(_new->fullname, params[7].c_str(),MAXGECOS);
+               _new->registered = REG_ALL;
+               _new->signon = age;
                
                for (std::string::iterator v = params[5].begin(); v != params[5].end(); v++)
-               {
-                       clientlist[tempnick]->modes[(*v)-65] = 1;
-               }
+                       _new->modes[(*v)-65] = 1;
 
                if (params[6].find_first_of(":") != std::string::npos)
-                       clientlist[tempnick]->SetSockAddr(AF_INET6, params[6].c_str(), 0);
+                       _new->SetSockAddr(AF_INET6, params[6].c_str(), 0);
                else
-                       clientlist[tempnick]->SetSockAddr(AF_INET, params[6].c_str(), 0);
+                       _new->SetSockAddr(AF_INET, params[6].c_str(), 0);
 
-               WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",clientlist[tempnick]->server,clientlist[tempnick]->nick,clientlist[tempnick]->ident,clientlist[tempnick]->host, clientlist[tempnick]->GetIPString());
+               ServerInstance->WriteOpers("*** Client connecting at %s: %s!%s@%s [%s]",_new->server,_new->nick,_new->ident,_new->host, _new->GetIPString());
 
                params[7] = ":" + params[7];
                DoOneToAllButSender(source,"NICK",params,source);
@@ -1590,7 +1586,7 @@ class TreeSocket : public InspSocket
                TreeServer* SourceServer = FindServer(source);
                if (SourceServer)
                {
-                       log(DEBUG,"Found source server of %s",clientlist[tempnick]->nick);
+                       log(DEBUG,"Found source server of %s",_new->nick);
                        SourceServer->AddUserCount();
                }
 
@@ -1620,7 +1616,7 @@ class TreeSocket : public InspSocket
 
                for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
                {
-                       int x = cflags(i->second,c);
+                       int x = c->GetStatusFlags(i->second);
                        if ((x & UCMODE_HOP) && (x & UCMODE_OP))
                        {
                                specific_halfop.push_back(i->second);
@@ -1697,7 +1693,7 @@ class TreeSocket : public InspSocket
                 }
                /* XXX: Send each channel mode and its params -- we'll need a method for this in ModeHandler? */
                 //FOREACH_MOD(I_OnSyncChannel,OnSyncChannel(c->second,(Module*)TreeProtocolModule,(void*)this));
-               this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+chanmodes(c,true)+modes+" "+params);
+               this->WriteLine(":"+Srv->GetServerName()+" FMODE "+c->name+" "+ConvToStr(c->age)+" +"+c->ChanModes(true)+modes+" "+params);
        }
 
        /* Send G, Q, Z and E lines */
@@ -1758,7 +1754,7 @@ class TreeSocket : public InspSocket
                int iterations = 0;
                std::string n = Srv->GetServerName();
                const char* sn = n.c_str();
-               for (chan_hash::iterator c = chanlist.begin(); c != chanlist.end(); c++, iterations++)
+               for (chan_hash::iterator c = this->Instance->chanlist.begin(); c != this->Instance->chanlist.end(); c++, iterations++)
                {
                        SendFJoins(Current, c->second);
                        if (*c->second->topic)
@@ -1782,7 +1778,7 @@ class TreeSocket : public InspSocket
                char data[MAXBUF];
                std::deque<std::string> list;
                int iterations = 0;
-               for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++, iterations++)
+               for (user_hash::iterator u = this->Instance->clientlist.begin(); u != this->Instance->clientlist.end(); u++, iterations++)
                {
                        if (u->second->registered == REG_ALL)
                        {
@@ -1814,18 +1810,14 @@ class TreeSocket : public InspSocket
         */
        void DoBurst(TreeServer* s)
        {
-               /* The calls here to ServerInstance-> yield the processing
-                * back to the core so that a large burst is split into at least 6 sections
-                * (possibly more)
-                */
                std::string burst = "BURST "+ConvToStr(time(NULL));
                std::string endburst = "ENDBURST";
                // Because by the end of the netburst, it  could be gone!
                std::string name = s->GetName();
-               Srv->SendOpers("*** Bursting to \2"+name+"\2.");
+               ServerInstance->WriteOpers("*** Bursting to \2"+name+"\2.");
                this->WriteLine(burst);
                /* send our version string */
-               this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+Srv->GetVersion());
+               this->WriteLine(":"+Srv->GetServerName()+" VERSION :"+this->Instance->GetVersionString());
                /* Send server tree */
                this->SendServers(TreeRoot,s,1);
                /* Send users and their oper status */
@@ -1835,7 +1827,7 @@ class TreeSocket : public InspSocket
                this->SendXLines(s);            
                FOREACH_MOD(I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)TreeProtocolModule,(void*)this));
                this->WriteLine(endburst);
-               Srv->SendOpers("*** Finished bursting to \2"+name+"\2.");
+               ServerInstance->WriteOpers("*** Finished bursting to \2"+name+"\2.");
        }
 
        /* This function is called when we receive data from a remote
@@ -1931,7 +1923,7 @@ class TreeSocket : public InspSocket
        {
                if (params.size() < 1)
                        return false;
-               WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
+               ServerInstance->WriteOpers("*** ERROR from %s: %s",(InboundServerName != "" ? InboundServerName.c_str() : myhost.c_str()),params[0].c_str());
                /* we will return false to cause the socket to close. */
                return false;
        }
@@ -1947,7 +1939,7 @@ class TreeSocket : public InspSocket
                        {
                                /* It's for our server */
                                string_list results;
-                               userrec* source = Srv->FindNick(prefix);
+                               userrec* source = ServerInstance->FindNick(prefix);
                                if (source)
                                {
                                        std::deque<std::string> par;
@@ -1964,7 +1956,7 @@ class TreeSocket : public InspSocket
                        else
                        {
                                /* Pass it on */
-                               userrec* source = Srv->FindNick(prefix);
+                               userrec* source = ServerInstance->FindNick(prefix);
                                if (source)
                                        DoOneToOne(prefix, "STATS", params, params[1]);
                        }
@@ -1984,7 +1976,7 @@ class TreeSocket : public InspSocket
                        return true;
                }
                std::string opertype = params[0];
-               userrec* u = Srv->FindNick(prefix);
+               userrec* u = ServerInstance->FindNick(prefix);
                if (u)
                {
                        u->modes[UM_OPERATOR] = 1;
@@ -2002,7 +1994,7 @@ class TreeSocket : public InspSocket
                if (params.size() < 3)
                        return true;
 
-               userrec* u = Srv->FindNick(params[0]);
+               userrec* u = ServerInstance->FindNick(params[0]);
 
                if (u)
                {
@@ -2014,7 +2006,11 @@ class TreeSocket : public InspSocket
                                /* This is not required as one is sent in OnUserPostNick below
                                 */
                                //DoOneToMany(u->nick,"NICK",par);
-                               Srv->ChangeUserNick(u,params[1]);
+                               if (!u->ForceNickChange(params[1].c_str()))
+                               {
+                                       userrec::QuitUser(this->Instance, u, "Nickname collision");
+                                       return true;
+                               }
                                u->age = atoi(params[2].c_str());
                        }
                }
@@ -2026,11 +2022,11 @@ class TreeSocket : public InspSocket
                if (params.size() < 2)
                        return true;
 
-               userrec* u = Srv->FindNick(params[0]);
+               userrec* u = ServerInstance->FindNick(params[0]);
 
                if (u)
                {
-                       Srv->JoinUserToChannel(u,params[1],"");
+                       chanrec::JoinUser(this->Instance, u, params[1].c_str(), false);
                        DoOneToAllButSender(prefix,"SVSJOIN",params,prefix);
                }
                return true;
@@ -2045,7 +2041,7 @@ class TreeSocket : public InspSocket
 
                if (Srv->MatchText(Srv->GetServerName(),servermask))
                {
-                       Srv->SendOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
+                       ServerInstance->WriteOpers("*** Remote rehash initiated from server \002"+prefix+"\002.");
                        Srv->RehashServer();
                        ReadConfiguration(false);
                }
@@ -2059,8 +2055,8 @@ class TreeSocket : public InspSocket
                        return true;
 
                std::string nick = params[0];
-               userrec* u = Srv->FindNick(prefix);
-               userrec* who = Srv->FindNick(nick);
+               userrec* u = ServerInstance->FindNick(prefix);
+               userrec* who = ServerInstance->FindNick(nick);
 
                if (who)
                {
@@ -2077,8 +2073,8 @@ class TreeSocket : public InspSocket
                        std::string reason = params[1];
                        params[1] = ":" + params[1];
                        DoOneToAllButSender(prefix,"KILL",params,sourceserv);
-                       ::Write(who->fd, ":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
-                       Srv->QuitUser(who,reason);
+                       who->Write(":%s KILL %s :%s (%s)", sourceserv.c_str(), who->nick, sourceserv.c_str(), reason.c_str());
+                       userrec::QuitUser(this->Instance,who,reason);
                }
                return true;
        }
@@ -2107,11 +2103,11 @@ class TreeSocket : public InspSocket
                                 * dump the PONG reply back to their fd. If its a server, do nowt.
                                 * Services might want to send these s->s, but we dont need to yet.
                                 */
-                               userrec* u = Srv->FindNick(prefix);
+                               userrec* u = ServerInstance->FindNick(prefix);
 
                                if (u)
                                {
-                                       WriteServ(u->fd,"PONG %s %s",params[0].c_str(),params[1].c_str());
+                                       u->WriteServ("PONG %s %s",params[0].c_str(),params[1].c_str());
                                }
                        }
                        else
@@ -2139,7 +2135,7 @@ class TreeSocket : public InspSocket
                        }
                        else if (*(params[0].c_str()) == '#')
                        {
-                               chanrec* c = Srv->FindChannel(params[0]);
+                               chanrec* c = ServerInstance->FindChan(params[0]);
                                if (c)
                                {
                                        FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_CHANNEL,c,params[1],params[2]));
@@ -2147,7 +2143,7 @@ class TreeSocket : public InspSocket
                        }
                        else if (*(params[0].c_str()) != '#')
                        {
-                               userrec* u = Srv->FindNick(params[0]);
+                               userrec* u = ServerInstance->FindNick(params[0]);
                                if (u)
                                {
                                        FOREACH_MOD(I_OnDecodeMetaData,OnDecodeMetaData(TYPE_USER,u,params[1],params[2]));
@@ -2181,11 +2177,11 @@ class TreeSocket : public InspSocket
                if (params.size() < 1)
                        return true;
 
-               userrec* u = Srv->FindNick(prefix);
+               userrec* u = ServerInstance->FindNick(prefix);
 
                if (u)
                {
-                       Srv->ChangeHost(u,params[0]);
+                       u->ChangeDisplayedHost(params[0].c_str());
                        DoOneToAllButSender(prefix,"FHOST",params,u->server);
                }
                return true;
@@ -2221,7 +2217,7 @@ class TreeSocket : public InspSocket
                        break;
                        default:
                                /* Just in case... */
-                               Srv->SendOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
+                               ServerInstance->WriteOpers("*** \2WARNING\2: Invalid xline type '"+params[0]+"' sent by server "+prefix+", ignored!");
                                propogate = false;
                        break;
                }
@@ -2231,11 +2227,11 @@ class TreeSocket : public InspSocket
                {
                        if (atoi(params[4].c_str()))
                        {
-                               WriteOpers("*** %s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
+                               ServerInstance->WriteOpers("*** %s Added %cLINE on %s to expire in %lu seconds (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),atoi(params[4].c_str()),params[5].c_str());
                        }
                        else
                        {
-                               WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
+                               ServerInstance->WriteOpers("*** %s Added permenant %cLINE on %s (%s).",prefix.c_str(),*(params[0].c_str()),params[1].c_str(),params[5].c_str());
                        }
                        params[5] = ":" + params[5];
                        DoOneToAllButSender(prefix,"ADDLINE",params,prefix);
@@ -2253,11 +2249,11 @@ class TreeSocket : public InspSocket
                if (params.size() < 1)
                        return true;
 
-               userrec* u = Srv->FindNick(prefix);
+               userrec* u = ServerInstance->FindNick(prefix);
 
                if (u)
                {
-                       Srv->ChangeGECOS(u,params[0]);
+                       u->ChangeName(params[0].c_str());
                        params[0] = ":" + params[0];
                        DoOneToAllButSender(prefix,"FNAME",params,u->server);
                }
@@ -2270,7 +2266,7 @@ class TreeSocket : public InspSocket
                        return true;
 
                log(DEBUG,"In IDLE command");
-               userrec* u = Srv->FindNick(prefix);
+               userrec* u = ServerInstance->FindNick(prefix);
 
                if (u)
                {
@@ -2278,10 +2274,10 @@ class TreeSocket : public InspSocket
                        // an incoming request
                        if (params.size() == 1)
                        {
-                               userrec* x = Srv->FindNick(params[0]);
+                               userrec* x = ServerInstance->FindNick(params[0]);
                                if ((x) && (IS_LOCAL(x)))
                                {
-                                       userrec* x = Srv->FindNick(params[0]);
+                                       userrec* x = ServerInstance->FindNick(params[0]);
                                        log(DEBUG,"Got IDLE");
                                        char signon[MAXBUF];
                                        char idle[MAXBUF];
@@ -2304,7 +2300,7 @@ class TreeSocket : public InspSocket
                        else if (params.size() == 3)
                        {
                                std::string who_did_the_whois = params[0];
-                               userrec* who_to_send_to = Srv->FindNick(who_did_the_whois);
+                               userrec* who_to_send_to = ServerInstance->FindNick(who_did_the_whois);
                                if ((who_to_send_to) && (IS_LOCAL(who_to_send_to)))
                                {
                                        log(DEBUG,"Got final IDLE");
@@ -2330,14 +2326,14 @@ class TreeSocket : public InspSocket
                if (params.size() < 2)
                        return true;
 
-               userrec* u = Srv->FindNick(params[0]);
+               userrec* u = ServerInstance->FindNick(params[0]);
 
                if (!u)
                        return true;
 
                if (IS_LOCAL(u))
                {
-                       ::Write(u->fd,"%s",params[1].c_str());
+                       u->Write(params[1]);
                }
                else
                {
@@ -2357,7 +2353,7 @@ class TreeSocket : public InspSocket
                        // someone querying our time?
                        if (Srv->GetServerName() == params[0])
                        {
-                               userrec* u = Srv->FindNick(params[1]);
+                               userrec* u = ServerInstance->FindNick(params[1]);
                                if (u)
                                {
                                        char curtime[256];
@@ -2370,7 +2366,7 @@ class TreeSocket : public InspSocket
                        else
                        {
                                // not us, pass it on
-                               userrec* u = Srv->FindNick(params[1]);
+                               userrec* u = ServerInstance->FindNick(params[1]);
                                if (u)
                                        DoOneToOne(prefix,"TIME",params,params[0]);
                        }
@@ -2378,7 +2374,7 @@ class TreeSocket : public InspSocket
                else if (params.size() == 3)
                {
                        // a response to a previous TIME
-                       userrec* u = Srv->FindNick(params[1]);
+                       userrec* u = ServerInstance->FindNick(params[1]);
                        if ((u) && (IS_LOCAL(u)))
                        {
                        time_t rawtime = atol(params[2].c_str());
@@ -2387,7 +2383,7 @@ class TreeSocket : public InspSocket
                                char tms[26];
                                snprintf(tms,26,"%s",asctime(timeinfo));
                                tms[24] = 0;
-                       WriteServ(u->fd,"391 %s %s :%s",u->nick,prefix.c_str(),tms);
+                       u->WriteServ("391 %s %s :%s",u->nick,prefix.c_str(),tms);
                        }
                        else
                        {
@@ -2448,14 +2444,14 @@ class TreeSocket : public InspSocket
                if (CheckDupe)
                {
                        this->WriteLine("ERROR :Server "+servername+" already exists!");
-                       Srv->SendOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
+                       ServerInstance->WriteOpers("*** Server connection from \2"+servername+"\2 denied, already exists");
                        return false;
                }
                TreeServer* Node = new TreeServer(servername,description,ParentOfThis,NULL);
                ParentOfThis->AddChild(Node);
                params[3] = ":" + params[3];
                DoOneToAllButSender(prefix,"SERVER",params,prefix);
-               Srv->SendOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
+               ServerInstance->WriteOpers("*** Server \002"+prefix+"\002 introduced server \002"+servername+"\002 ("+description+")");
                return true;
        }
 
@@ -2472,7 +2468,7 @@ class TreeSocket : public InspSocket
                if (hops)
                {
                        this->WriteLine("ERROR :Server too far away for authentication");
-                       Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
+                       ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
                        return false;
                }
                std::string description = params[3];
@@ -2484,7 +2480,7 @@ class TreeSocket : public InspSocket
                                if (CheckDupe)
                                {
                                        this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
-                                       Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
+                                       ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
                                        return false;
                                }
                                // Begin the sync here. this kickstarts the
@@ -2505,7 +2501,7 @@ class TreeSocket : public InspSocket
                        }
                }
                this->WriteLine("ERROR :Invalid credentials");
-               Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
+               ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
                return false;
        }
 
@@ -2522,7 +2518,7 @@ class TreeSocket : public InspSocket
                if (hops)
                {
                        this->WriteLine("ERROR :Server too far away for authentication");
-                       Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
+                       ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, server is too far away for authentication");
                        return false;
                }
                std::string description = params[3];
@@ -2534,7 +2530,7 @@ class TreeSocket : public InspSocket
                                if (CheckDupe)
                                {
                                        this->WriteLine("ERROR :Server "+sname+" already exists on server "+CheckDupe->GetParent()->GetName()+"!");
-                                       Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
+                                       ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, already exists on server "+CheckDupe->GetParent()->GetName());
                                        return false;
                                }
                                /* If the config says this link is encrypted, but the remote side
@@ -2544,10 +2540,10 @@ class TreeSocket : public InspSocket
                                if ((x->EncryptionKey != "") && (!this->ctx_in))
                                {
                                        this->WriteLine("ERROR :This link requires AES encryption to be enabled. Plaintext connection refused.");
-                                       Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
+                                       ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, remote server did not enable AES.");
                                        return false;
                                }
-                               Srv->SendOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
+                               ServerInstance->WriteOpers("*** Verified incoming server connection from \002"+sname+"\002["+(x->HiddenFromStats ? "<hidden>" : this->GetIP())+"] ("+description+")");
                                this->InboundServerName = sname;
                                this->InboundDescription = description;
                                // this is good. Send our details: Our server name and description and hopcount of 0,
@@ -2559,7 +2555,7 @@ class TreeSocket : public InspSocket
                        }
                }
                this->WriteLine("ERROR :Invalid credentials");
-               Srv->SendOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
+               ServerInstance->WriteOpers("*** Server connection from \2"+sname+"\2 denied, invalid link credentials");
                return false;
        }
 
@@ -2612,7 +2608,7 @@ class TreeSocket : public InspSocket
                }
                else if ((this->ctx_in) && (command == "AES"))
                {
-                       WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
+                       ServerInstance->WriteOpers("*** \2AES\2: Encryption already enabled on this connection yet %s is trying to enable it twice!",params[0].c_str());
                }
 
                switch (this->LinkState)
@@ -2680,13 +2676,13 @@ class TreeSocket : public InspSocket
                                                long delta = THEM-time(NULL);
                                                if ((delta < -600) || (delta > 600))
                                                {
-                                                       WriteOpers("*** \2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
+                                                       ServerInstance->WriteOpers("*** \2ERROR\2: Your clocks are out by %d seconds (this is more than ten minutes). Link aborted, \2PLEASE SYNC YOUR CLOCKS!\2",abs(delta));
                                                        this->WriteLine("ERROR :Your clocks are out by "+ConvToStr(abs(delta))+" seconds (this is more than ten minutes). Link aborted, PLEASE SYNC YOUR CLOCKS!");
                                                        return false;
                                                }
                                                else if ((delta < -60) || (delta > 60))
                                                {
-                                                       WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
+                                                       ServerInstance->WriteOpers("*** \2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
                                                }
                                        }
                                        this->LinkState = CONNECTED;
@@ -2738,7 +2734,7 @@ class TreeSocket : public InspSocket
                                if (prefix != "")
                                {
                                        std::string direction = prefix;
-                                       userrec* t = Srv->FindNick(prefix);
+                                       userrec* t = ServerInstance->FindNick(prefix);
                                        if (t)
                                        {
                                                direction = t->server;
@@ -2892,11 +2888,13 @@ class TreeSocket : public InspSocket
                                        std::string sourceserv = this->myhost;
                                        if (params.size() == 3)
                                        {
-                                               userrec* user = Srv->FindNick(params[1]);
-                                               chanrec* chan = Srv->FindChannel(params[0]);
+                                               userrec* user = ServerInstance->FindNick(params[1]);
+                                               chanrec* chan = ServerInstance->FindChan(params[0]);
                                                if (user && chan)
                                                {
-                                                       server_kick_channel(user,chan,(char*)params[2].c_str(),false);
+                                                       if (!chan->ServerKickUser(user, params[2].c_str(), false))
+                                                               /* Yikes, the channels gone! */
+                                                               delete chan;
                                                }
                                        }
                                        if (this->InboundServerName != "")
@@ -2930,7 +2928,7 @@ class TreeSocket : public InspSocket
                                        {
                                                sourceserv = this->InboundServerName;
                                        }
-                                       WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
+                                       ServerInstance->WriteOpers("*** Received end of netburst from \2%s\2",sourceserv.c_str());
                                        return true;
                                }
                                else
@@ -2938,7 +2936,7 @@ class TreeSocket : public InspSocket
                                        // not a special inter-server command.
                                        // Emulate the actual user doing the command,
                                        // this saves us having a huge ugly parser.
-                                       userrec* who = Srv->FindNick(prefix);
+                                       userrec* who = ServerInstance->FindNick(prefix);
                                        std::string sourceserv = this->myhost;
                                        if (this->InboundServerName != "")
                                        {
@@ -2952,7 +2950,7 @@ class TreeSocket : public InspSocket
                                                         * already exist here. If it does, kill their copy,
                                                         * and our copy.
                                                         */
-                                                       userrec* x = Srv->FindNick(params[0]);
+                                                       userrec* x = ServerInstance->FindNick(params[0]);
                                                        if ((x) && (x != who))
                                                        {
                                                                std::deque<std::string> p;
@@ -2963,11 +2961,11 @@ class TreeSocket : public InspSocket
                                                                p.push_back(prefix);
                                                                p.push_back("Nickname collision");
                                                                DoOneToMany(Srv->GetServerName(),"KILL",p);
-                                                               Srv->QuitUser(x,"Nickname collision ("+prefix+" -> "+params[0]+")");
-                                                               userrec* y = Srv->FindNick(prefix);
+                                                               userrec::QuitUser(this->Instance,x,"Nickname collision ("+prefix+" -> "+params[0]+")");
+                                                               userrec* y = ServerInstance->FindNick(prefix);
                                                                if (y)
                                                                {
-                                                                       Srv->QuitUser(y,"Nickname collision");
+                                                                       userrec::QuitUser(this->Instance,y,"Nickname collision");
                                                                }
                                                                return DoOneToAllButSenderRaw(line,sourceserv,prefix,command,params);
                                                        }
@@ -3021,7 +3019,7 @@ class TreeSocket : public InspSocket
        {
                if (this->LinkState == CONNECTING)
                {
-                       Srv->SendOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
+                       ServerInstance->WriteOpers("*** CONNECT: Connection to \002"+myhost+"\002 timed out.");
                }
        }
 
@@ -3040,7 +3038,7 @@ class TreeSocket : public InspSocket
                {
                        Squit(s,"Remote host closed the connection");
                }
-               WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
+               ServerInstance->WriteOpers("Server '\2%s\2' closed the connection.",quitserver.c_str());
        }
 
        virtual int OnIncomingConnection(int newsock, char* ip)
@@ -3050,15 +3048,22 @@ class TreeSocket : public InspSocket
                 * IPs for which we don't have a link block.
                 */
                bool found = false;
-               vector<Link>::iterator i;
+
                found = (std::find(ValidIPs.begin(), ValidIPs.end(), ip) != ValidIPs.end());
                if (!found)
                {
-                       WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
-                       close(newsock);
-                       return false;
+                       for (vector<std::string>::iterator i = ValidIPs.begin(); i != ValidIPs.end(); i++)
+                               if (MatchCIDR(ip, (*i).c_str()))
+                                       found = true;
+
+                       if (!found)
+                       {
+                               ServerInstance->WriteOpers("Server connection from %s denied (no link blocks with that IP address)", ip);
+                               close(newsock);
+                               return false;
+                       }
                }
-               TreeSocket* s = new TreeSocket(newsock, ip);
+               TreeSocket* s = new TreeSocket(this->Instance, newsock, ip);
                Srv->AddSocket(s);
                return true;
        }
@@ -3079,7 +3084,7 @@ class ServernameResolver : public Resolver
         */
        Link MyLink;
  public:        
-       ServernameResolver(const std::string &hostname, Link x) : Resolver(hostname, DNS_QUERY_FORWARD), MyLink(x)
+       ServernameResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
        {
                /* Nothing in here, folks */
        }
@@ -3093,7 +3098,7 @@ class ServernameResolver : public Resolver
                TreeServer* CheckDupe = FindServer(MyLink.Name.c_str());
                if (!CheckDupe) /* Check that nobody tried to connect it successfully while we were resolving */
                {
-                       TreeSocket* newsocket = new TreeSocket(result,MyLink.Port,false,10,MyLink.Name.c_str());
+                       TreeSocket* newsocket = new TreeSocket(ServerInstance, result,MyLink.Port,false,10,MyLink.Name.c_str());
                        if (newsocket->GetFd() > -1)
                        {
                                /* We're all OK */
@@ -3102,7 +3107,7 @@ class ServernameResolver : public Resolver
                        else
                        {
                                /* Something barfed, show the opers */
-                               WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
+                               ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",MyLink.Name.c_str(),strerror(errno));
                                delete newsocket;
                        }
                }
@@ -3111,7 +3116,7 @@ class ServernameResolver : public Resolver
        void OnError(ResolverError e, const std::string &errormessage)
        {
                /* Ooops! */
-               WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
+               ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: Unable to resolve hostname - %s",MyLink.Name.c_str(),errormessage.c_str());
        }
 };
 
@@ -3120,7 +3125,7 @@ class SecurityIPResolver : public Resolver
  private:
        Link MyLink;
  public:
-       SecurityIPResolver(const std::string &hostname, Link x) : Resolver(hostname, DNS_QUERY_FORWARD), MyLink(x)
+       SecurityIPResolver(InspIRCd* Instance, const std::string &hostname, Link x) : Resolver(Instance, hostname, DNS_QUERY_FORWARD), MyLink(x)
        {
        }
 
@@ -3179,7 +3184,7 @@ bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string pref
                        if ((*(params[0].c_str()) != '#') && (*(params[0].c_str()) != '$'))
                        {
                                // special routing for private messages/notices
-                               userrec* d = Srv->FindNick(params[0]);
+                               userrec* d = ServerInstance->FindNick(params[0]);
                                if (d)
                                {
                                        std::deque<std::string> par;
@@ -3200,7 +3205,7 @@ bool DoOneToAllButSenderRaw(std::string data, std::string omit, std::string pref
                        else
                        {
                                log(DEBUG,"Channel privmsg going to chan %s",params[0].c_str());
-                               chanrec* c = Srv->FindChannel(params[0]);
+                               chanrec* c = ServerInstance->FindChan(params[0]);
                                if (c)
                                {
                                        std::deque<TreeServer*> list;
@@ -3323,7 +3328,7 @@ void ReadConfiguration(bool rebind)
                                {
                                        IP = "";
                                }
-                               TreeSocket* listener = new TreeSocket(IP.c_str(),Port,true,10);
+                               TreeSocket* listener = new TreeSocket(ServerInstance, IP.c_str(),Port,true,10);
                                if (listener->GetState() == I_LISTENING)
                                {
                                        Srv->AddSocket(listener);
@@ -3345,6 +3350,7 @@ void ReadConfiguration(bool rebind)
        for (int j =0; j < Conf->Enumerate("link"); j++)
        {
                Link L;
+               std::string Allow = Conf->ReadValue("link","allowmask",j);
                L.Name = (Conf->ReadValue("link","name",j)).c_str();
                L.IPAddr = Conf->ReadValue("link","ipaddr",j);
                L.Port = Conf->ReadInteger("link","port",j,true);
@@ -3359,13 +3365,16 @@ void ReadConfiguration(bool rebind)
                {
                        ValidIPs.push_back(L.IPAddr);
 
+                       if (Allow.length())
+                               ValidIPs.push_back(Allow);
+
                        /* Needs resolving */
                        insp_inaddr binip;
                        if (insp_aton(L.IPAddr.c_str(), &binip) < 1)
                        {
                                try
                                {
-                                       SecurityIPResolver* sr = new SecurityIPResolver(L.IPAddr, L);
+                                       SecurityIPResolver* sr = new SecurityIPResolver(ServerInstance, L.IPAddr, L);
                                        Srv->AddResolver(sr);
                                }
                                catch (ModuleException& e)
@@ -3455,7 +3464,7 @@ class ModuleSpanningTree : public Module
                /* Don't display the line if its a uline, hide ulines is on, and the user isnt an oper */
                if ((HideULines) && (Srv->IsUlined(Current->GetName())) && (!*user->oper))
                        return;
-               WriteServ(user->fd,"364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? Srv->GetServerName().c_str() : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
+               user->WriteServ("364 %s %s %s :%d %s",user->nick,Current->GetName().c_str(),(FlatLinks && (!*user->oper)) ? Srv->GetServerName().c_str() : Parent.c_str(),(FlatLinks && (!*user->oper)) ? 0 : hops,Current->GetDesc().c_str());
        }
 
        int CountLocalServs()
@@ -3471,30 +3480,30 @@ class ModuleSpanningTree : public Module
        void HandleLinks(const char** parameters, int pcnt, userrec* user)
        {
                ShowLinks(TreeRoot,user,0);
-               WriteServ(user->fd,"365 %s * :End of /LINKS list.",user->nick);
+               user->WriteServ("365 %s * :End of /LINKS list.",user->nick);
                return;
        }
 
        void HandleLusers(const char** parameters, int pcnt, userrec* user)
        {
-               unsigned int n_users = usercnt();
+               unsigned int n_users = ServerInstance->usercnt();
 
                /* Only update these when someone wants to see them, more efficient */
-               if ((unsigned int)local_count() > max_local)
-                       max_local = local_count();
+               if ((unsigned int)ServerInstance->local_count() > max_local)
+                       max_local = ServerInstance->local_count();
                if (n_users > max_global)
                        max_global = n_users;
 
-               WriteServ(user->fd,"251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-usercount_invisible(),usercount_invisible(),this->CountServs());
-               if (usercount_opers())
-                       WriteServ(user->fd,"252 %s %d :operator(s) online",user->nick,usercount_opers());
-               if (usercount_unknown())
-                       WriteServ(user->fd,"253 %s %d :unknown connections",user->nick,usercount_unknown());
-               if (chancount())
-                       WriteServ(user->fd,"254 %s %d :channels formed",user->nick,chancount());
-               WriteServ(user->fd,"254 %s :I have %d clients and %d servers",user->nick,local_count(),this->CountLocalServs());
-               WriteServ(user->fd,"265 %s :Current Local Users: %d  Max: %d",user->nick,local_count(),max_local);
-               WriteServ(user->fd,"266 %s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
+               user->WriteServ("251 %s :There are %d users and %d invisible on %d servers",user->nick,n_users-ServerInstance->usercount_invisible(),ServerInstance->usercount_invisible(),this->CountServs());
+               if (ServerInstance->usercount_opers())
+                       user->WriteServ("252 %s %d :operator(s) online",user->nick,ServerInstance->usercount_opers());
+               if (ServerInstance->usercount_unknown())
+                       user->WriteServ("253 %s %d :unknown connections",user->nick,ServerInstance->usercount_unknown());
+               if (ServerInstance->chancount())
+                       user->WriteServ("254 %s %d :channels formed",user->nick,ServerInstance->chancount());
+               user->WriteServ("254 %s :I have %d clients and %d servers",user->nick,ServerInstance->local_count(),this->CountLocalServs());
+               user->WriteServ("265 %s :Current Local Users: %d  Max: %d",user->nick,ServerInstance->local_count(),max_local);
+               user->WriteServ("266 %s :Current Global Users: %d  Max: %d",user->nick,n_users,max_global);
                return;
        }
 
@@ -3524,13 +3533,13 @@ class ModuleSpanningTree : public Module
 
                        float percent;
                        char text[80];
-                       if (clientlist.size() == 0) {
+                       if (ServerInstance->clientlist.size() == 0) {
                                // If there are no users, WHO THE HELL DID THE /MAP?!?!?!
                                percent = 0;
                        }
                        else
                        {
-                               percent = ((float)Current->GetUserCount() / (float)clientlist.size()) * 100;
+                               percent = ((float)Current->GetUserCount() / (float)ServerInstance->clientlist.size()) * 100;
                        }
                        snprintf(text, 80, "%s %s%5d [%5.2f%%]", Current->GetName().c_str(), spacer, Current->GetUserCount(), percent);
                        totusers += Current->GetUserCount();
@@ -3571,7 +3580,7 @@ class ModuleSpanningTree : public Module
                        }
                        else
                        {
-                               WriteServ(user->fd, "402 %s %s :No such server", user->nick, parameters[0]);
+                               user->WriteServ( "402 %s %s :No such server", user->nick, parameters[0]);
                        }
                        return 1;
                }
@@ -3635,11 +3644,11 @@ class ModuleSpanningTree : public Module
                // dump the whole lot to the user. This is the easy bit, honest.
                for (int t = 0; t < line; t++)
                {
-                       WriteServ(user->fd,"006 %s :%s",user->nick,&matrix[t][0]);
+                       user->WriteServ("006 %s :%s",user->nick,&matrix[t][0]);
                }
                float avg_users = totusers / totservers;
-               WriteServ(user->fd,"270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
-       WriteServ(user->fd,"007 %s :End of /MAP",user->nick);
+               user->WriteServ("270 %s :%.0f server%s and %.0f user%s, average %.2f users per server",user->nick,totservers,(totservers > 1 ? "s" : ""),totusers,(totusers > 1 ? "s" : ""),avg_users);
+       user->WriteServ("007 %s :End of /MAP",user->nick);
                return;
        }
 
@@ -3650,25 +3659,25 @@ class ModuleSpanningTree : public Module
                {
                        if (s == TreeRoot)
                        {
-                                WriteServ(user->fd,"NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
+                                user->WriteServ("NOTICE %s :*** SQUIT: Foolish mortal, you cannot make a server SQUIT itself! (%s matches local server name)",user->nick,parameters[0]);
                                return 1;
                        }
                        TreeSocket* sock = s->GetSocket();
                        if (sock)
                        {
                                log(DEBUG,"Splitting server %s",s->GetName().c_str());
-                               WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
+                               ServerInstance->WriteOpers("*** SQUIT: Server \002%s\002 removed from network by %s",parameters[0],user->nick);
                                sock->Squit(s,"Server quit by "+std::string(user->nick)+"!"+std::string(user->ident)+"@"+std::string(user->host));
                                Srv->RemoveSocket(sock);
                        }
                        else
                        {
-                               WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
+                               user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 is not directly connected.",user->nick,parameters[0]);
                        }
                }
                else
                {
-                        WriteServ(user->fd,"NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
+                        user->WriteServ("NOTICE %s :*** SQUIT: The server \002%s\002 does not exist on the network.",user->nick,parameters[0]);
                }
                return 1;
        }
@@ -3691,7 +3700,7 @@ class ModuleSpanningTree : public Module
                        }
                        else
                        {
-                               WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
+                               user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
                        }
                }
                return 1;
@@ -3701,7 +3710,7 @@ class ModuleSpanningTree : public Module
        {
                if ((IS_LOCAL(user)) && (pcnt > 1))
                {
-                       userrec* remote = Srv->FindNick(parameters[1]);
+                       userrec* remote = ServerInstance->FindNick(parameters[1]);
                        if ((remote) && (remote->fd < 0))
                        {
                                std::deque<std::string> params;
@@ -3711,8 +3720,8 @@ class ModuleSpanningTree : public Module
                        }
                        else if (!remote)
                        {
-                               WriteServ(user->fd,"401 %s %s :No such nick/channel",user->nick, parameters[1]);
-                               WriteServ(user->fd,"318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
+                               user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[1]);
+                               user->WriteServ("318 %s %s :End of /WHOIS list.",user->nick, parameters[1]);
                                return 1;
                        }
                }
@@ -3737,7 +3746,7 @@ class ModuleSpanningTree : public Module
                                        else
                                        {
                                                // they didnt answer, boot them
-                                               WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
+                                               ServerInstance->WriteOpers("*** Server \002%s\002 pinged out",serv->GetName().c_str());
                                                sock->Squit(serv,"Ping timeout");
                                                Srv->RemoveSocket(sock);
                                                return;
@@ -3759,21 +3768,21 @@ class ModuleSpanningTree : public Module
                                if (!CheckDupe)
                                {
                                        // an autoconnected server is not connected. Check if its time to connect it
-                                       WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
+                                       ServerInstance->WriteOpers("*** AUTOCONNECT: Auto-connecting server \002%s\002 (%lu seconds until next attempt)",x->Name.c_str(),x->AutoConnect);
 
                                        insp_inaddr binip;
 
                                        /* Do we already have an IP? If so, no need to resolve it. */
                                        if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
                                        {
-                                               TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
+                                               TreeSocket* newsocket = new TreeSocket(ServerInstance, x->IPAddr,x->Port,false,10,x->Name.c_str());
                                                if (newsocket->GetFd() > -1)
                                                {
                                                        Srv->AddSocket(newsocket);
                                                }
                                                else
                                                {
-                                                       WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
+                                                       ServerInstance->WriteOpers("*** AUTOCONNECT: Error autoconnecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
                                                        delete newsocket;
                                                }
                                        }
@@ -3781,7 +3790,7 @@ class ModuleSpanningTree : public Module
                                        {
                                                try
                                                {
-                                                       ServernameResolver* snr = new ServernameResolver(x->IPAddr, *x);
+                                                       ServernameResolver* snr = new ServernameResolver(ServerInstance,x->IPAddr, *x);
                                                        Srv->AddResolver(snr);
                                                }
                                                catch (ModuleException& e)
@@ -3802,10 +3811,10 @@ class ModuleSpanningTree : public Module
                if (found)
                {
                        std::string Version = found->GetVersion();
-                       WriteServ(user->fd,"351 %s :%s",user->nick,Version.c_str());
+                       user->WriteServ("351 %s :%s",user->nick,Version.c_str());
                        if (found == TreeRoot)
                        {
-                               std::stringstream out(Config->data005);
+                               std::stringstream out(ServerInstance->Config->data005);
                                std::string token = "";
                                std::string line5 = "";
                                int token_counter = 0;
@@ -3818,7 +3827,7 @@ class ModuleSpanningTree : public Module
 
                                        if ((token_counter >= 13) || (out.eof() == true))
                                        {
-                                               WriteServ(user->fd,"005 %s %s:are supported by this server",user->nick,line5.c_str());
+                                               user->WriteServ("005 %s %s:are supported by this server",user->nick,line5.c_str());
                                                line5 = "";
                                                token_counter = 0;
                                        }
@@ -3827,7 +3836,7 @@ class ModuleSpanningTree : public Module
                }
                else
                {
-                       WriteServ(user->fd,"402 %s %s :No such server",user->nick,parameters[0]);
+                       user->WriteServ("402 %s %s :No such server",user->nick,parameters[0]);
                }
                return 1;
        }
@@ -3841,20 +3850,20 @@ class ModuleSpanningTree : public Module
                                TreeServer* CheckDupe = FindServer(x->Name.c_str());
                                if (!CheckDupe)
                                {
-                                       WriteServ(user->fd,"NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
+                                       user->WriteServ("NOTICE %s :*** CONNECT: Connecting to server: \002%s\002 (%s:%d)",user->nick,x->Name.c_str(),(x->HiddenFromStats ? "<hidden>" : x->IPAddr.c_str()),x->Port);
                                        insp_inaddr binip;
 
                                        /* Do we already have an IP? If so, no need to resolve it. */
                                        if (insp_aton(x->IPAddr.c_str(), &binip) > 0)
                                        {
-                                               TreeSocket* newsocket = new TreeSocket(x->IPAddr,x->Port,false,10,x->Name.c_str());
+                                               TreeSocket* newsocket = new TreeSocket(ServerInstance,x->IPAddr,x->Port,false,10,x->Name.c_str());
                                                if (newsocket->GetFd() > -1)
                                                {
                                                        Srv->AddSocket(newsocket);
                                                }
                                                else
                                                {
-                                                       WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
+                                                       ServerInstance->WriteOpers("*** CONNECT: Error connecting \002%s\002: %s.",x->Name.c_str(),strerror(errno));
                                                        delete newsocket;
                                                }
                                        }
@@ -3862,7 +3871,7 @@ class ModuleSpanningTree : public Module
                                        {
                                                try
                                                {
-                                                       ServernameResolver* snr = new ServernameResolver(x->IPAddr, *x);
+                                                       ServernameResolver* snr = new ServernameResolver(ServerInstance, x->IPAddr, *x);
                                                        Srv->AddResolver(snr);
                                                }
                                                catch (ModuleException& e)
@@ -3874,12 +3883,12 @@ class ModuleSpanningTree : public Module
                                }
                                else
                                {
-                                       WriteServ(user->fd,"NOTICE %s :*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
+                                       user->WriteServ("NOTICE %s :*** CONNECT: Server \002%s\002 already exists on the network and is connected via \002%s\002",user->nick,x->Name.c_str(),CheckDupe->GetParent()->GetName().c_str());
                                        return 1;
                                }
                        }
                }
-               WriteServ(user->fd,"NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
+               user->WriteServ("NOTICE %s :*** CONNECT: No server matching \002%s\002 could be found in the config file.",user->nick,parameters[0]);
                return 1;
        }
 
@@ -3893,7 +3902,7 @@ class ModuleSpanningTree : public Module
                                results.push_back(Srv->GetServerName()+" 244 "+user->nick+" H * * "+LinkBlocks[i].Name.c_str());
                        }
                        results.push_back(Srv->GetServerName()+" 219 "+user->nick+" "+statschar+" :End of /STATS report");
-                       WriteOpers("*** Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
+                       ServerInstance->WriteOpers("*** Notice: %s '%c' requested by %s (%s@%s)",(!strcmp(user->server,ServerInstance->Config->ServerName) ? "Stats" : "Remote stats"),statschar,user->nick,user->ident,user->host);
                        return 1;
                }
                return 0;
@@ -4266,7 +4275,7 @@ class ModuleSpanningTree : public Module
                        // check for self
                        if (Srv->MatchText(Srv->GetServerName(),parameter))
                        {
-                               Srv->SendOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
+                               ServerInstance->WriteOpers("*** Remote rehash initiated from server \002"+Srv->GetServerName()+"\002.");
                                Srv->RehashServer();
                        }
                }
@@ -4452,14 +4461,14 @@ class ModuleSpanningTree : public Module
                                return;
                        // Insert the TS value of the object, either userrec or chanrec
                        time_t ourTS = 0;
-                       userrec* a = Srv->FindNick((*params)[0]);
+                       userrec* a = ServerInstance->FindNick((*params)[0]);
                        if (a)
                        {
                                ourTS = a->age;
                        }
                        else
                        {
-                               chanrec* a = Srv->FindChannel((*params)[0]);
+                               chanrec* a = ServerInstance->FindChan((*params)[0]);
                                if (a)
                                {
                                        ourTS = a->age;