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-rw-r--r--src/modules/m_spanningtree.cpp127
1 files changed, 111 insertions, 16 deletions
diff --git a/src/modules/m_spanningtree.cpp b/src/modules/m_spanningtree.cpp
index c53d2a01a..c5c6bc061 100644
--- a/src/modules/m_spanningtree.cpp
+++ b/src/modules/m_spanningtree.cpp
@@ -1592,7 +1592,7 @@ class TreeSocket : public InspSocket
/* default TS is a high value, which if we dont have this
* channel will let the other side apply their modes.
*/
- time_t ourTS = time(NULL)+600;
+ time_t ourTS = Instance->Time(true)+600;
/* Does this channel exist? if it does, get its REAL timestamp */
if (chan)
@@ -2062,7 +2062,7 @@ class TreeSocket : public InspSocket
*/
void DoBurst(TreeServer* s)
{
- std::string burst = "BURST "+ConvToStr(time(NULL));
+ std::string burst = "BURST "+ConvToStr(Instance->Time(true));
std::string endburst = "ENDBURST";
// Because by the end of the netburst, it could be gone!
std::string name = s->GetName();
@@ -2631,7 +2631,7 @@ class TreeSocket : public InspSocket
char idle[MAXBUF];
snprintf(signon,MAXBUF,"%lu",(unsigned long)x->signon);
- snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-time(NULL)));
+ snprintf(idle,MAXBUF,"%lu",(unsigned long)abs((x->idle_lastmsg)-Instance->Time(true)));
std::deque<std::string> par;
par.push_back(prefix);
par.push_back(signon);
@@ -2691,6 +2691,45 @@ class TreeSocket : public InspSocket
return true;
}
+ bool HandleSetTime(const std::string &prefix, std::deque<std::string> &params)
+ {
+ if (!params.size())
+ return true;
+
+ bool force = false;
+
+ if ((params.size() == 2) && (params[1] == "force"))
+ force = true;
+
+ time_t rts = atoi(params[0].c_str());
+ time_t us = Instance->Time(true);
+
+ if (rts == us)
+ {
+ Instance->Log(DEBUG, "Timestamp from %s is equal", prefix.c_str());
+
+ Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
+ }
+ else if (force || (rts < us))
+ {
+ int old = Instance->SetTimeDelta(rts - us);
+ Instance->Log(DEBUG, "%s TS (diff %d) from %s applied (old delta was %d)", (force) ? "Forced" : "Lower", rts - us, prefix.c_str(), old);
+
+ Utils->DoOneToAllButSender(prefix, "TIMESET", params, prefix);
+ }
+ else
+ {
+ Instance->Log(DEBUG, "Higher TS (diff %d) from %s overridden", us - rts, prefix.c_str());
+
+ std::deque<std::string> oparams;
+ oparams.push_back(ConvToStr(us));
+
+ Utils->DoOneToMany(prefix, "TIMESET", oparams);
+ }
+
+ return true;
+ }
+
bool Time(const std::string &prefix, std::deque<std::string> &params)
{
// :source.server TIME remote.server sendernick
@@ -2703,9 +2742,7 @@ class TreeSocket : public InspSocket
userrec* u = this->Instance->FindNick(params[1]);
if (u)
{
- char curtime[256];
- snprintf(curtime,256,"%lu",(unsigned long)time(NULL));
- params.push_back(curtime);
+ params.push_back(ConvToStr(Instance->Time(true)));
params[0] = prefix;
Utils->DoOneToOne(this->Instance->Config->ServerName,"TIME",params,params[0]);
}
@@ -3078,18 +3115,38 @@ class TreeSocket : public InspSocket
{
if (params.size())
{
- /* If a time stamp is provided, try and check syncronization */
- time_t THEM = atoi(params[0].c_str());
- long delta = THEM-time(NULL);
+ /* If a time stamp is provided, apply synchronization */
+ bool force = false;
+ time_t them = atoi(params[0].c_str());
+ time_t us = Instance->Time(true);
+ int delta = them - us;
+
+ if ((params.size() == 2) && (params[1] == "force"))
+ force = true;
+
if ((delta < -600) || (delta > 600))
{
this->Instance->SNO->WriteToSnoMask('l',"\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))
+
+ if (us == them)
+ {
+ this->Instance->Log(DEBUG, "Timestamps are equal; pat yourself on the back");
+ }
+ else if (force || (us > them))
+ {
+ this->Instance->Log(DEBUG, "Remote server has lower TS (%d seconds)", them - us);
+ this->Instance->SetTimeDelta(them - us);
+ // Send this new timestamp to any other servers
+ Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
+ }
+ else
{
- this->Instance->SNO->WriteToSnoMask('l',"\2WARNING\2: Your clocks are out by %d seconds, please consider synching your clocks.",abs(delta));
+ // Override the timestamp
+ this->Instance->Log(DEBUG, "We have a higher timestamp (by %d seconds), not updating delta", us - them);
+ this->WriteLine(":" + Utils->TreeRoot->GetName() + " TIMESET " + ConvToStr(us));
}
}
this->LinkState = CONNECTED;
@@ -3298,6 +3355,10 @@ class TreeSocket : public InspSocket
{
return this->Push(prefix,params);
}
+ else if (command == "TIMESET")
+ {
+ return this->HandleSetTime(prefix, params);
+ }
else if (command == "TIME")
{
return this->Time(prefix,params);
@@ -3423,8 +3484,7 @@ class TreeSocket : public InspSocket
}
else
{
- if (!prefix.empty())
- Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
+ Instance->Log(DEBUG,"Command with unknown origin '%s'",prefix.c_str());
return true;
}
}
@@ -3912,7 +3972,19 @@ void SpanningTreeUtilities::ReadConfiguration(bool rebind)
DELETE(Conf);
}
-
+/** To create a timer which recurs every second, we inherit from InspTimer.
+ * InspTimer is only one-shot however, so at the end of each Tick() we simply
+ * insert another of ourselves into the pending queue :)
+ */
+class TimeSyncTimer : public InspTimer
+{
+ private:
+ InspIRCd *Instance;
+ ModuleSpanningTree *Module;
+ public:
+ TimeSyncTimer(InspIRCd *Instance, ModuleSpanningTree *Mod);
+ virtual void Tick(time_t TIME);
+};
class ModuleSpanningTree : public Module
{
@@ -3924,6 +3996,7 @@ class ModuleSpanningTree : public Module
SpanningTreeUtilities* Utils;
public:
+ TimeSyncTimer *SyncTimer;
ModuleSpanningTree(InspIRCd* Me)
: Module::Module(Me), max_local(0), max_global(0)
@@ -3932,6 +4005,9 @@ class ModuleSpanningTree : public Module
command_rconnect = new cmd_rconnect(ServerInstance, this, Utils);
ServerInstance->AddCommand(command_rconnect);
+
+ SyncTimer = new TimeSyncTimer(ServerInstance, this);
+ ServerInstance->Timers->AddTimer(SyncTimer);
}
void ShowLinks(TreeServer* Current, userrec* user, int hops)
@@ -4426,6 +4502,13 @@ class ModuleSpanningTree : public Module
return 1;
}
+ void BroadcastTimeSync()
+ {
+ std::deque<std::string> params;
+ params.push_back(ConvToStr(ServerInstance->Time(true)));
+ Utils->DoOneToMany(Utils->TreeRoot->GetName(), "TIMESET", params);
+ }
+
virtual int OnStats(char statschar, userrec* user, string_list &results)
{
if (statschar == 'c')
@@ -5004,7 +5087,7 @@ class ModuleSpanningTree : public Module
return;
(*params)[1] = ":" + (*params)[1];
params->insert(params->begin() + 1,ServerInstance->Config->ServerName);
- params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time()));
+ params->insert(params->begin() + 1,ConvToStr(ServerInstance->Time(true)));
Utils->DoOneToMany(ServerInstance->Config->ServerName,"FTOPIC",*params);
}
else if (event->GetEventID() == "send_mode")
@@ -5049,6 +5132,8 @@ class ModuleSpanningTree : public Module
ServerInstance->Log(DEBUG,"Performing unload of spanningtree!");
/* This will also free the listeners */
delete Utils;
+ if (SyncTimer)
+ ServerInstance->Timers->DelTimer(SyncTimer);
}
virtual Version GetVersion()
@@ -5080,6 +5165,17 @@ class ModuleSpanningTree : public Module
}
};
+TimeSyncTimer::TimeSyncTimer(InspIRCd *Inst, ModuleSpanningTree *Mod) : InspTimer(43200, Inst->Time()), Instance(Inst), Module(Mod)
+{
+}
+
+void TimeSyncTimer::Tick(time_t TIME)
+{
+ Module->BroadcastTimeSync();
+ Module->SyncTimer = new TimeSyncTimer(Instance, Module);
+ Instance->Timers->AddTimer(Module->SyncTimer);
+}
+
void SpanningTreeUtilities::DoFailOver(Link* x)
{
if (x->FailOver.length())
@@ -5114,7 +5210,6 @@ Link* SpanningTreeUtilities::FindLink(const std::string& name)
return NULL;
}
-
class ModuleSpanningTreeFactory : public ModuleFactory
{
public:
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 22:08:00 +0000