detect/iponly: remove DetectEngineIPOnlyThreadCtx

This is unused.

Issue: 4578

src/detect-engine-iponly.c

@@ -895,25 +895,6 @@ SigIntId IPOnlyTrackSigNum(DetectEngineIPOnlyCtx *io_ctx, SigIntId signum)
     return loc;
 }
 
-/**
- * \brief Setup the IP Only thread detection engine context
- *
- * \param de_ctx Pointer to the current detection engine
- * \param io_ctx Pointer to the current ip only thread detection engine
- */
-void DetectEngineIPOnlyThreadInit(DetectEngineCtx *de_ctx,
-                                  DetectEngineIPOnlyThreadCtx *io_tctx)
-{
-    /* initialize the signature bitarray */
-    io_tctx->sig_match_size = de_ctx->io_ctx.max_idx / 8 + 1;
-    io_tctx->sig_match_array = SCMalloc(io_tctx->sig_match_size);
-    if (io_tctx->sig_match_array == NULL) {
-        exit(EXIT_FAILURE);
-    }
-
-    memset(io_tctx->sig_match_array, 0, io_tctx->sig_match_size);
-}
-
 /**
  * \brief Print stats of the IP Only engine
  *
@@ -958,17 +939,6 @@ void IPOnlyDeinit(DetectEngineCtx *de_ctx, DetectEngineIPOnlyCtx *io_ctx)
     io_ctx->sig_mapping = NULL;
 }
 
-/**
- * \brief Deinitialize the IP Only thread detection engine context
- *
- * \param de_ctx Pointer to the current detection engine
- * \param io_ctx Pointer to the current ip only detection engine
- */
-void DetectEngineIPOnlyThreadDeinit(DetectEngineIPOnlyThreadCtx *io_tctx)
-{
-    SCFree(io_tctx->sig_match_array);
-}
-
 static inline
 int IPOnlyMatchCompatSMs(ThreadVars *tv,
                          DetectEngineThreadCtx *det_ctx,
@@ -1002,11 +972,8 @@ int IPOnlyMatchCompatSMs(ThreadVars *tv,
  * \param io_ctx Pointer to the current ip only thread detection engine
  * \param p Pointer to the Packet to match against
  */
-void IPOnlyMatchPacket(ThreadVars *tv,
-                       const DetectEngineCtx *de_ctx,
-                       DetectEngineThreadCtx *det_ctx,
-                       const DetectEngineIPOnlyCtx *io_ctx,
-                       DetectEngineIPOnlyThreadCtx *io_tctx, Packet *p)
+void IPOnlyMatchPacket(ThreadVars *tv, const DetectEngineCtx *de_ctx,
+        DetectEngineThreadCtx *det_ctx, const DetectEngineIPOnlyCtx *io_ctx, Packet *p)
 {
     SigNumArray *src = NULL;
     SigNumArray *dst = NULL;

src/detect-engine-iponly.h

@@ -26,15 +26,12 @@
 
 void IPOnlyCIDRListFree(IPOnlyCIDRItem *tmphead);
 int IPOnlySigParseAddress(const DetectEngineCtx *, Signature *, const char *, char);
-void IPOnlyMatchPacket(ThreadVars *tv, const DetectEngineCtx *,
-                       DetectEngineThreadCtx *, const DetectEngineIPOnlyCtx *,
-                       DetectEngineIPOnlyThreadCtx *, Packet *);
+void IPOnlyMatchPacket(ThreadVars *tv, const DetectEngineCtx *, DetectEngineThreadCtx *,
+        const DetectEngineIPOnlyCtx *, Packet *);
 void IPOnlyInit(DetectEngineCtx *, DetectEngineIPOnlyCtx *);
 void IPOnlyPrint(DetectEngineCtx *, DetectEngineIPOnlyCtx *);
 void IPOnlyDeinit(DetectEngineCtx *, DetectEngineIPOnlyCtx *);
 void IPOnlyPrepare(DetectEngineCtx *);
-void DetectEngineIPOnlyThreadInit(DetectEngineCtx *, DetectEngineIPOnlyThreadCtx *);
-void DetectEngineIPOnlyThreadDeinit(DetectEngineIPOnlyThreadCtx *);
 SigIntId IPOnlyTrackSigNum(DetectEngineIPOnlyCtx *, SigIntId);
 void IPOnlyAddSignature(DetectEngineCtx *, DetectEngineIPOnlyCtx *, Signature *);
 void IPOnlyRegisterTests(void);

src/detect-engine.c

@@ -3046,9 +3046,6 @@ static TmEcode ThreadCtxDoInit (DetectEngineCtx *de_ctx, DetectEngineThreadCtx *
         BUG_ON(det_ctx->non_pf_id_array == NULL);
     }
 
-    /* IP-ONLY */
-    DetectEngineIPOnlyThreadInit(de_ctx,&det_ctx->io_ctx);
-
     /* DeState */
     if (de_ctx->sig_array_len > 0) {
         det_ctx->match_array_len = de_ctx->sig_array_len;
@@ -3277,8 +3274,6 @@ static void DetectEngineThreadCtxFree(DetectEngineThreadCtx *det_ctx)
     SCProfilingSghThreadCleanup(det_ctx);
 #endif
 
-    DetectEngineIPOnlyThreadDeinit(&det_ctx->io_ctx);
-
     /** \todo get rid of this static */
     if (det_ctx->de_ctx != NULL) {
         PatternMatchThreadDestroy(&det_ctx->mtc, det_ctx->de_ctx->mpm_matcher);

src/detect.c

@@ -562,7 +562,7 @@ static void DetectRunInspectIPOnly(ThreadVars *tv, const DetectEngineCtx *de_ctx
             SCLogDebug("testing against \"ip-only\" signatures");
 
             PACKET_PROFILING_DETECT_START(p, PROF_DETECT_IPONLY);
-            IPOnlyMatchPacket(tv, de_ctx, det_ctx, &de_ctx->io_ctx, &det_ctx->io_ctx, p);
+            IPOnlyMatchPacket(tv, de_ctx, det_ctx, &de_ctx->io_ctx, p);
             PACKET_PROFILING_DETECT_END(p, PROF_DETECT_IPONLY);
 
             /* save in the flow that we scanned this direction... */
@@ -573,8 +573,7 @@ static void DetectRunInspectIPOnly(ThreadVars *tv, const DetectEngineCtx *de_ctx
 
         /* Even without flow we should match the packet src/dst */
         PACKET_PROFILING_DETECT_START(p, PROF_DETECT_IPONLY);
-        IPOnlyMatchPacket(tv, de_ctx, det_ctx, &de_ctx->io_ctx,
-                          &det_ctx->io_ctx, p);
+        IPOnlyMatchPacket(tv, de_ctx, det_ctx, &de_ctx->io_ctx, p);
         PACKET_PROFILING_DETECT_END(p, PROF_DETECT_IPONLY);
     }
 }

src/detect.h

@@ -704,11 +704,6 @@ typedef struct SCFPSupportSMList_ {
     struct SCFPSupportSMList_ *next;
 } SCFPSupportSMList;
 
-typedef struct DetectEngineIPOnlyThreadCtx_ {
-    uint8_t *sig_match_array; /* bit array of sig nums */
-    uint32_t sig_match_size;  /* size in bytes of the array */
-} DetectEngineIPOnlyThreadCtx;
-
 /** \brief IP only rules matching ctx. */
 typedef struct DetectEngineIPOnlyCtx_ {
     /* Lookup trees */
@@ -1144,9 +1139,6 @@ typedef struct DetectEngineThreadCtx_ {
      * prototype held by DetectEngineCtx. */
     SpmThreadCtx *spm_thread_ctx;
 
-    /** ip only rules ctx */
-    DetectEngineIPOnlyThreadCtx io_ctx;
-
     /* byte_* values */
     uint64_t *byte_values;