pfring: fix stupid enum usage.

pfring code is not using standard notation for the cluster_type enum
and this leads to a horrific code in pfring acquisition code.

src/runmode-pfring.c

@@ -106,7 +106,7 @@ void *OldParsePfringConfig(const char *iface)
     char *tmpclusterid;
 #ifdef HAVE_PFRING_CLUSTER_TYPE
     char *tmpctype = NULL;
-    char * default_ctype = SCStrdup("cluster_round_robin");
+    cluster_type default_ctype = CLUSTER_ROUND_ROBIN;
 #endif
 
     if (iface == NULL) {
@@ -120,7 +120,7 @@ void *OldParsePfringConfig(const char *iface)
     pfconf->threads = 1;
     pfconf->cluster_id = 1;
 #ifdef HAVE_PFRING_CLUSTER_TYPE
-    pfconf->ctype = (cluster_type)default_ctype;
+    pfconf->ctype = default_ctype;
 #endif
     pfconf->DerefFunc = PfringDerefConfig;
     SC_ATOMIC_INIT(pfconf->ref);
@@ -190,8 +190,7 @@ void *ParsePfringConfig(const char *iface)
     char *tmpclusterid;
 #ifdef HAVE_PFRING_CLUSTER_TYPE
     char *tmpctype = NULL;
-    /* TODO free me */
-    char * default_ctype = SCStrdup("cluster_round_robin");
+    cluster_type default_ctype = CLUSTER_ROUND_ROBIN;
     int getctype = 0;
 #endif
 
@@ -276,11 +275,11 @@ void *ParsePfringConfig(const char *iface)
         if (strcmp(tmpctype, "cluster_round_robin") == 0) {
             SCLogInfo("Using round-robin cluster mode for PF_RING (iface %s)",
                     pfconf->iface);
-            pfconf->ctype = (cluster_type)tmpctype;
+            pfconf->ctype = CLUSTER_ROUND_ROBIN;
         } else if (strcmp(tmpctype, "cluster_flow") == 0) {
             SCLogInfo("Using flow cluster mode for PF_RING (iface %s)",
                     pfconf->iface);
-            pfconf->ctype = (cluster_type)tmpctype;
+            pfconf->ctype = CLUSTER_FLOW;
         } else {
             SCLogError(SC_ERR_INVALID_CLUSTER_TYPE,
                        "invalid cluster-type %s",

src/source-pfring.c

@@ -276,7 +276,6 @@ TmEcode ReceivePfringThreadInit(ThreadVars *tv, void *initdata, void **data) {
     int rc;
     u_int32_t version = 0;
     char *tmpclusterid;
-    char *tmpctype;
     PfringIfaceConfig *pfconf = (PfringIfaceConfig *) initdata;
 
 
@@ -313,7 +312,7 @@ TmEcode ReceivePfringThreadInit(ThreadVars *tv, void *initdata, void **data) {
         ptv->cluster_id = pfconf->cluster_id;
 
 #ifdef HAVE_PFRING_CLUSTER_TYPE
-        ptv->ctype = (cluster_type)SCStrdup((char *)pfconf->ctype);
+        ptv->ctype = pfconf->ctype;
         rc = pfring_set_cluster(ptv->pd, ptv->cluster_id, ptv->ctype);
 #else
         rc = pfring_set_cluster(ptv->pd, ptv->cluster_id);
@@ -383,10 +382,6 @@ TmEcode ReceivePfringThreadDeinit(ThreadVars *tv, void *data) {
     PfringThreadVars *ptv = (PfringThreadVars *)data;
     if (ptv->interface)
         SCFree(ptv->interface);
-#ifdef HAVE_PFRING_CLUSTER_TYPE
-    if (ptv->ctype)
-        SCFree((char *)ptv->ctype);
-#endif
     pfring_remove_from_cluster(ptv->pd);
     pfring_close(ptv->pd);
     return TM_ECODE_OK;

src/source-pfring.h

@@ -53,4 +53,8 @@ void TmModuleDecodePfringRegister (void);
 int PfringConfGetThreads(void);
 void PfringLoadConfig(void);
 
+/* We don't have to use an enum that sucks in our code */
+#define CLUSTER_FLOW 0
+#define CLUSTER_ROUND_ROBIN 1
+
 #endif /* __SOURCE_PFRING_H__ */