stats: register ips capture stats for each packet thread

ReleasePacket based verdicts can happen in several threads,
depending on the runmode details.

Only register and update if in IPS mode.

src/decode.c

@@ -834,6 +834,9 @@ thread_local CaptureStats t_capture_stats;
 /* TODO drop reason stats! */
 void CaptureStatsUpdate(ThreadVars *tv, const Packet *p)
 {
+    if (!EngineModeIsIPS() || PKT_IS_PSEUDOPKT(p))
+        return;
+
     CaptureStats *s = &t_capture_stats;
     if (unlikely(PacketCheckAction(p, ACTION_REJECT_ANY))) {
         StatsIncr(tv, s->counter_ips_rejected);
@@ -848,12 +851,14 @@ void CaptureStatsUpdate(ThreadVars *tv, const Packet *p)
 
 void CaptureStatsSetup(ThreadVars *tv)
 {
+    if (EngineModeIsIPS()) {
         CaptureStats *s = &t_capture_stats;
         s->counter_ips_accepted = StatsRegisterCounter("ips.accepted", tv);
         s->counter_ips_blocked = StatsRegisterCounter("ips.blocked", tv);
         s->counter_ips_rejected = StatsRegisterCounter("ips.rejected", tv);
         s->counter_ips_replaced = StatsRegisterCounter("ips.replaced", tv);
     }
+}
 
 void DecodeGlobalConfig(void)
 {

src/source-nfq.c

@@ -776,9 +776,6 @@ TmEcode ReceiveNFQThreadDeinit(ThreadVars *t, void *data)
 TmEcode VerdictNFQThreadInit(ThreadVars *tv, const void *initdata, void **data)
 {
     NFQThreadVars *ntv = (NFQThreadVars *)initdata;
-
-    CaptureStatsSetup(tv);
-
     *data = (void *)ntv;
     return TM_ECODE_OK;
 }

src/source-windivert.c

@@ -821,9 +821,6 @@ TmEcode VerdictWinDivertThreadInit(ThreadVars *tv, const void *initdata,
     SCEnter();
 
     WinDivertThreadVars *wd_tv = (WinDivertThreadVars *)initdata;
-
-    CaptureStatsSetup(tv);
-
     *data = wd_tv;
 
     SCReturnInt(TM_ECODE_OK);

src/tm-threads.c

@@ -242,7 +242,7 @@ static void *TmThreadsSlotPktAcqLoop(void *td)
 
     /* Drop the capabilities for this thread */
     SCDropCaps(tv);
-
+    CaptureStatsSetup(tv);
     PacketPoolInit();
 
     /* check if we are setup properly */
@@ -372,6 +372,7 @@ static void *TmThreadsSlotVar(void *td)
     char run = 1;
     TmEcode r = TM_ECODE_OK;
 
+    CaptureStatsSetup(tv);
     PacketPoolInit();//Empty();
 
     SCSetThreadName(tv->name);