introduce app layer local storage api support

src/app-layer-detect-proto.c

@@ -282,6 +282,10 @@ void AlpProtoFinalizeThread(AlpProtoDetectCtx *ctx, AlpProtoDetectThreadCtx *tct
         PmqSetup(&tctx->toserver.pmq, sig_maxid, pat_maxid);
     }
 
+    int i;
+    for (i = 0; i < ALPROTO_MAX; i++) {
+        tctx->alproto_local_storage[i] = AppLayerGetProtocolParserLocalStorage(i);
+    }
 }
 
 void AlpProtoDeFinalize2Thread(AlpProtoDetectThreadCtx *tctx) {

src/app-layer-parser.c

@@ -596,6 +596,15 @@ void AppLayerRegisterTransactionIdFuncs(uint16_t proto,
     al_proto_table[proto].StateTransactionFree = StateTransactionFree;
 }
 
+void *AppLayerGetProtocolParserLocalStorage(uint16_t proto)
+{
+    if (al_proto_table[proto].LocalStorageAlloc != NULL) {
+        return al_proto_table[proto].LocalStorageAlloc();
+    }
+
+    return NULL;
+}
+
 /** \brief Indicate to the app layer parser that a logger is active
  *         for this protocol.
  */

src/app-layer-parser.h

@@ -48,6 +48,7 @@ typedef struct AppLayerProto_ {
     void (*StateFree)(void *);
     void (*StateUpdateTransactionId)(void *, uint16_t *);
     void (*StateTransactionFree)(void *, uint16_t);
+    void *(*LocalStorageAlloc)(void);
 
 } AppLayerProto;
 
@@ -235,6 +236,7 @@ void AppLayerRegisterStateFuncs(uint16_t proto, void *(*StateAlloc)(void),
 void AppLayerRegisterTransactionIdFuncs(uint16_t proto,
         void (*StateTransactionId)(void *, uint16_t *),
         void (*StateTransactionFree)(void *, uint16_t id));
+void *AppLayerGetProtocolParserLocalStorage(uint16_t);
 void AppLayerRegisterLogger(uint16_t proto);
 uint16_t AppLayerGetProtoByName(const char *);
 

src/decode.h

@@ -490,6 +490,8 @@ typedef struct AlpProtoDetectThreadCtx_ {
     AlpProtoDetectDirectionThread toserver;
     AlpProtoDetectDirectionThread toclient;
 
+    void *alproto_local_storage[ALPROTO_MAX];
+
 #ifdef PROFILING
     uint64_t ticks_start;
     uint64_t ticks_end;