* most of the action, and append a few of our own values
* to it.
*/
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, Module* HookMod)
- : BufferedSocket(SI, host, port, listening, maxtime), Utils(Util), Hook(HookMod)
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string shost, int iport, bool listening, unsigned long maxtime, Module* HookMod)
+ : BufferedSocket(SI, shost, iport, listening, maxtime), Utils(Util), Hook(HookMod)
{
myhost = host;
this->LinkState = LISTENER;
BufferedSocketHookRequest(this, (Module*)Utils->Creator, Hook).Send();
}
-TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string host, int port, bool listening, unsigned long maxtime, const std::string &ServerName, const std::string &bindto, Module* HookMod)
- : BufferedSocket(SI, host, port, listening, maxtime, bindto), Utils(Util), Hook(HookMod)
+TreeSocket::TreeSocket(SpanningTreeUtilities* Util, InspIRCd* SI, std::string shost, int iport, bool listening, unsigned long maxtime, const std::string &ServerName, const std::string &bindto, Module* HookMod)
+ : BufferedSocket(SI, shost, iport, listening, maxtime, bindto), Utils(Util), Hook(HookMod)
{
myhost = ServerName;
theirchallenge.clear();
BufferedSocketUnhookRequest(this, (Module*)Utils->Creator, Hook).Send();
}
-const std::string& TreeSocket::GetOurChallenge()
-{
- return this->ourchallenge;
-}
-
-void TreeSocket::SetOurChallenge(const std::string &c)
-{
- this->ourchallenge = c;
-}
-
-const std::string& TreeSocket::GetTheirChallenge()
-{
- return this->theirchallenge;
-}
-
-void TreeSocket::SetTheirChallenge(const std::string &c)
-{
- this->theirchallenge = c;
-}
-
-std::string TreeSocket::MakePass(const std::string &password, const std::string &challenge)
-{
- /* This is a simple (maybe a bit hacky?) HMAC algorithm, thanks to jilles for
- * suggesting the use of HMAC to secure the password against various attacks.
- *
- * Note: If m_sha256.so is not loaded, we MUST fall back to plaintext with no
- * HMAC challenge/response.
- */
- Module* sha256 = Instance->Modules->Find("m_sha256.so");
- if (Utils->ChallengeResponse && sha256 && !challenge.empty())
- {
- /* XXX: This is how HMAC is supposed to be done:
- *
- * sha256( (pass xor 0x5c) + sha256((pass xor 0x36) + m) )
- *
- * Note that we are encoding the hex hash, not the binary
- * output of the hash which is slightly different to standard.
- *
- * Don't ask me why its always 0x5c and 0x36... it just is.
- */
- std::string hmac1, hmac2;
-
- for (size_t n = 0; n < password.length(); n++)
- {
- hmac1 += static_cast<char>(password[n] ^ 0x5C);
- hmac2 += static_cast<char>(password[n] ^ 0x36);
- }
-
- hmac2 += challenge;
- HashResetRequest(Utils->Creator, sha256).Send();
- hmac2 = HashSumRequest(Utils->Creator, sha256, hmac2).Send();
-
- HashResetRequest(Utils->Creator, sha256).Send();
- std::string hmac = hmac1 + hmac2;
- hmac = HashSumRequest(Utils->Creator, sha256, hmac).Send();
-
- return "HMAC-SHA256:"+ hmac;
- }
- else if (!challenge.empty() && !sha256)
- Instance->Log(DEFAULT,"Not authenticating to server using SHA256/HMAC because we don't have m_sha256 loaded!");
-
- return password;
-}
-
/** When an outbound connection finishes connecting, we receive
* this event, and must send our SERVER string to the other
* side. If the other side is happy, as outlined in the server
return true;
}
-/** Recursively send the server tree with distances as hops.
- * This is used during network burst to inform the other server
- * (and any of ITS servers too) of what servers we know about.
- * If at any point any of these servers already exist on the other
- * end, our connection may be terminated. The hopcounts given
- * by this function are relative, this doesn't matter so long as
- * they are all >1, as all the remote servers re-calculate them
- * to be relative too, with themselves as hop 0.
- */
-void TreeSocket::SendServers(TreeServer* Current, TreeServer* s, int hops)
-{
- char command[1024];
- for (unsigned int q = 0; q < Current->ChildCount(); q++)
- {
- TreeServer* recursive_server = Current->GetChild(q);
- if (recursive_server != s)
- {
- snprintf(command,1024,":%s SERVER %s * %d %s :%s",Current->GetName().c_str(),recursive_server->GetName().c_str(),hops,
- recursive_server->GetID().c_str(),
- recursive_server->GetDesc().c_str());
- this->WriteLine(command);
- this->WriteLine(":"+recursive_server->GetName()+" VERSION :"+recursive_server->GetVersion());
- /* down to next level */
- this->SendServers(recursive_server, s, hops+1);
- }
- }
-}
-
-std::string TreeSocket::RandString(unsigned int length)
-{
- char* randombuf = new char[length+1];
- std::string out;
-#ifdef WINDOWS
- int fd = -1;
-#else
- int fd = open("/dev/urandom", O_RDONLY, 0);
-#endif
-
- if (fd >= 0)
- {
-#ifndef WINDOWS
- read(fd, randombuf, length);
- close(fd);
-#endif
- }
- else
- {
- for (unsigned int i = 0; i < length; i++)
- randombuf[i] = rand();
- }
-
- for (unsigned int i = 0; i < length; i++)
- {
- char randchar = static_cast<char>((randombuf[i] & 0x7F) | 0x21);
- out += (randchar == '=' ? '_' : randchar);
- }
-
- delete[] randombuf;
- return out;
-}
-
void TreeSocket::SendError(const std::string &errormessage)
{
/* Display the error locally as well as sending it remotely */
this->Instance->SNO->WriteToSnoMask('l',"Netsplit complete, lost \002%d\002 users on \002%d\002 servers.", num_lost_users, num_lost_servers);
}
else
- Instance->Log(DEFAULT,"Squit from unknown server");
-}
-
-/** Send one or more FJOINs for a channel of users.
- * If the length of a single line is more than 480-NICKMAX
- * in length, it is split over multiple lines.
- */
-void TreeSocket::SendFJoins(TreeServer* Current, Channel* c)
-{
- std::string buffer;
- char list[MAXBUF];
- std::string individual_halfops = std::string(":")+this->Instance->Config->GetSID()+" FMODE "+c->name+" "+ConvToStr(c->age);
-
- size_t dlen, curlen;
- dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->GetSID().c_str(),c->name,(unsigned long)c->age);
- int numusers = 1;
- char* ptr = list + dlen;
-
- CUList *ulist = c->GetUsers();
- std::string modes;
- std::string params;
-
- for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
- {
- // The first parameter gets a : before it
- size_t ptrlen = snprintf(ptr, MAXBUF, " %s%s,%s", !numusers ? ":" : "", c->GetAllPrefixChars(i->first), i->first->uuid);
-
- curlen += ptrlen;
- ptr += ptrlen;
-
- numusers++;
-
- if (curlen > (480-NICKMAX))
- {
- buffer.append(list).append("\r\n");
- dlen = curlen = snprintf(list,MAXBUF,":%s FJOIN %s %lu",this->Instance->Config->GetSID().c_str(),c->name,(unsigned long)c->age);
- ptr = list + dlen;
- ptrlen = 0;
- numusers = 0;
- }
- }
-
- if (numusers)
- buffer.append(list).append("\r\n");
-
- buffer.append(":").append(this->Instance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(c->ChanModes(true)).append("\r\n");
-
- int linesize = 1;
- for (BanList::iterator b = c->bans.begin(); b != c->bans.end(); b++)
- {
- int size = strlen(b->data) + 2;
- int currsize = linesize + size;
- if (currsize <= 350)
- {
- modes.append("b");
- params.append(" ").append(b->data);
- linesize += size;
- }
- if ((params.length() >= MAXMODES) || (currsize > 350))
- {
- /* Wrap at MAXMODES */
- buffer.append(":").append(this->Instance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params).append("\r\n");
- modes.clear();
- params.clear();
- linesize = 1;
- }
- }
-
- /* Only send these if there are any */
- if (!modes.empty())
- buffer.append(":").append(this->Instance->Config->GetSID()).append(" FMODE ").append(c->name).append(" ").append(ConvToStr(c->age)).append(" +").append(modes).append(params);
-
- this->WriteLine(buffer);
-}
-
-/** Send G, Q, Z and E lines */
-void TreeSocket::SendXLines(TreeServer* Current)
-{
- char data[MAXBUF];
- std::string buffer;
- std::string n = this->Instance->Config->GetSID();
- const char* sn = n.c_str();
-
- std::vector<std::string> types = Instance->XLines->GetAllTypes();
-
- for (std::vector<std::string>::iterator it = types.begin(); it != types.end(); ++it)
- {
- XLineLookup* lookup = Instance->XLines->GetAll(*it);
-
- if (lookup)
- {
- for (LookupIter i = lookup->begin(); i != lookup->end(); ++i)
- {
- snprintf(data,MAXBUF,":%s ADDLINE %s %s %s %lu %lu :%s\r\n",sn, it->c_str(), i->second->Displayable(),
- i->second->source,
- (unsigned long)i->second->set_time,
- (unsigned long)i->second->duration,
- i->second->reason);
- buffer.append(data);
- }
- }
- }
-
- if (!buffer.empty())
- this->WriteLine(buffer);
-}
-
-/** Send channel modes and topics */
-void TreeSocket::SendChannelModes(TreeServer* Current)
-{
- char data[MAXBUF];
- std::deque<std::string> list;
- std::string n = this->Instance->Config->GetSID();
- const char* sn = n.c_str();
- Instance->Log(DEBUG,"Sending channels and modes, %d to send", this->Instance->chanlist->size());
- for (chan_hash::iterator c = this->Instance->chanlist->begin(); c != this->Instance->chanlist->end(); c++)
- {
- SendFJoins(Current, c->second);
- if (*c->second->topic)
- {
- snprintf(data,MAXBUF,":%s FTOPIC %s %lu %s :%s",sn,c->second->name,(unsigned long)c->second->topicset,c->second->setby,c->second->topic);
- this->WriteLine(data);
- }
- FOREACH_MOD_I(this->Instance,I_OnSyncChannel,OnSyncChannel(c->second,(Module*)Utils->Creator,(void*)this));
- list.clear();
- c->second->GetExtList(list);
- for (unsigned int j = 0; j < list.size(); j++)
- {
- FOREACH_MOD_I(this->Instance,I_OnSyncChannelMetaData,OnSyncChannelMetaData(c->second,(Module*)Utils->Creator,(void*)this,list[j]));
- }
- }
-}
-
-/** send all users and their oper state/modes */
-void TreeSocket::SendUsers(TreeServer* Current)
-{
- char data[MAXBUF];
- std::deque<std::string> list;
- std::string dataline;
- for (user_hash::iterator u = this->Instance->Users->clientlist->begin(); u != this->Instance->Users->clientlist->end(); u++)
- {
- if (u->second->registered == REG_ALL)
- {
- TreeServer* theirserver = Utils->FindServer(u->second->server);
- if (theirserver)
- {
- snprintf(data,MAXBUF,":%s UID %s %lu %s %s %s %s +%s %s %lu :%s", theirserver->GetID().c_str(), u->second->uuid,
- (unsigned long)u->second->age, u->second->nick, u->second->host, u->second->dhost,
- u->second->ident, u->second->FormatModes(), u->second->GetIPString(),
- (unsigned long)u->second->signon, u->second->fullname);
- this->WriteLine(data);
- if (*u->second->oper)
- {
- snprintf(data,MAXBUF,":%s OPERTYPE %s", u->second->uuid, u->second->oper);
- this->WriteLine(data);
- }
- if (*u->second->awaymsg)
- {
- snprintf(data,MAXBUF,":%s AWAY :%s", u->second->uuid, u->second->awaymsg);
- this->WriteLine(data);
- }
- }
-
- FOREACH_MOD_I(this->Instance,I_OnSyncUser,OnSyncUser(u->second,(Module*)Utils->Creator,(void*)this));
- list.clear();
- u->second->GetExtList(list);
- for (unsigned int j = 0; j < list.size(); j++)
- {
- FOREACH_MOD_I(this->Instance,I_OnSyncUserMetaData,OnSyncUserMetaData(u->second,(Module*)Utils->Creator,(void*)this,list[j]));
- }
- }
- }
-}
-
-/** This function is called when we want to send a netburst to a local
- * server. There is a set order we must do this, because for example
- * users require their servers to exist, and channels require their
- * users to exist. You get the idea.
- */
-void TreeSocket::DoBurst(TreeServer* s)
-{
- std::string name = s->GetName();
- std::string burst = ":" + this->Instance->Config->GetSID() + " BURST " +ConvToStr(Instance->Time(true));
- std::string endburst = ":" + this->Instance->Config->GetSID() + " ENDBURST";
- this->Instance->SNO->WriteToSnoMask('l',"Bursting to \2%s\2 (Authentication: %s).", name.c_str(), this->GetTheirChallenge().empty() ? "plaintext password" : "SHA256-HMAC challenge-response");
- this->WriteLine(burst);
- /* send our version string */
- this->WriteLine(std::string(":")+this->Instance->Config->GetSID()+" VERSION :"+this->Instance->GetVersionString());
- /* Send server tree */
- this->SendServers(Utils->TreeRoot,s,1);
- /* Send users and their oper status */
- this->SendUsers(s);
- /* Send everything else (channel modes, xlines etc) */
- this->SendChannelModes(s);
- this->SendXLines(s);
- FOREACH_MOD_I(this->Instance,I_OnSyncOtherMetaData,OnSyncOtherMetaData((Module*)Utils->Creator,(void*)this));
- this->WriteLine(endburst);
- this->Instance->SNO->WriteToSnoMask('l',"Finished bursting to \2"+name+"\2.");
+ Instance->Logs->Log("m_spanningtree",DEFAULT,"Squit from unknown server");
}
/** This function is called when we receive data from a remote
*/
bool TreeSocket::OnDataReady()
{
- char* data = this->Read();
+ const char* data = this->Read();
/* Check that the data read is a valid pointer and it has some content */
if (data && *data)
{
projects / user / henk / code / inspircd.git / blobdiff