luajit: pass calling rule's sid,gid,rev to script as SCRuleSid, SCRuleGid, SCRuleRev.

src/detect-luajit.c

@@ -499,6 +499,13 @@ static void *DetectLuajitThreadInit(void *data) {
 
     LuajitRegisterExtensions(t->luastate);
 
+    lua_pushinteger(t->luastate, (lua_Integer)(luajit->sid));
+    lua_setglobal(t->luastate, "SCRuleSid");
+    lua_pushinteger(t->luastate, (lua_Integer)(luajit->rev));
+    lua_setglobal(t->luastate, "SCRuleRev");
+    lua_pushinteger(t->luastate, (lua_Integer)(luajit->gid));
+    lua_setglobal(t->luastate, "SCRuleGid");
+
     /* hackish, needed to allow unittests to pass buffers as scripts instead of files */
 #ifdef UNITTESTS
     if (ut_script != NULL) {
@@ -869,6 +876,26 @@ error:
     return -1;
 }
 
+/** \brief post-sig parse function to set the sid,rev,gid into the
+ *         ctx, as this isn't available yet during parsing.
+ */
+void DetectLuajitPostSetup(Signature *s) {
+    int i;
+    SigMatch *sm;
+
+    for (i = 0; i < DETECT_SM_LIST_MAX; i++) {
+        for (sm = s->sm_lists[i]; sm != NULL; sm = sm->next) {
+            if (sm->type != DETECT_LUAJIT)
+                continue;
+
+            DetectLuajitData *ld = sm->ctx;
+            ld->sid = s->id;
+            ld->rev = s->rev;
+            ld->gid = s->gid;
+        }
+    }
+}
+
 /**
  * \brief this function will free memory associated with DetectLuajitData
  *

src/detect-luajit.h

@@ -50,6 +50,9 @@ typedef struct DetectLuajitData {
     uint16_t flowints;
     uint16_t flowvar[DETECT_LUAJIT_MAX_FLOWVARS];
     uint16_t flowvars;
+    uint32_t sid;
+    uint32_t rev;
+    uint32_t gid;
 } DetectLuajitData;
 #endif
 
@@ -60,5 +63,6 @@ int DetectLuajitMatchBuffer(DetectEngineThreadCtx *det_ctx, Signature *s, SigMat
         Flow *f, int need_flow_lock);
 
 int DetectLuajitSetupStatesPool(int num, int reloads);
+void DetectLuajitPostSetup(Signature *s);
 
 #endif /* __DETECT_FILELUAJIT_H__ */

src/detect-parse.c

@@ -41,6 +41,7 @@
 #include "detect-flow.h"
 #include "detect-app-layer-protocol.h"
 #include "detect-engine-apt-event.h"
+#include "detect-luajit.h"
 
 #include "pkt-var.h"
 #include "host.h"
@@ -1331,6 +1332,10 @@ int SigValidate(DetectEngineCtx *de_ctx, Signature *s) {
         }
     }
 
+#ifdef HAVE_LUAJIT
+    DetectLuajitPostSetup(s);
+#endif
+
 #ifdef DEBUG
     int i;
     for (i = 0; i < DETECT_SM_LIST_MAX; i++) {