app-layer-register: add GetTxIterator

Add a field to set the GetTxIterator function to the AppLayerParser
registration struct.

src/app-layer-register.c

@@ -162,6 +162,11 @@ int AppLayerRegisterParser(const struct AppLayerParser *p, AppProto alproto)
                 p->StateGetFiles);
     }
 
+    if (p->GetTxIterator) {
+        AppLayerParserRegisterGetTxIterator(p->ip_proto, alproto,
+                p->GetTxIterator);
+    }
+
     return 0;
 }
 

src/app-layer-register.h

@@ -65,6 +65,10 @@ typedef struct AppLayerParser {
     int (*SetTxMpmIDs)(void *tx, uint64_t);
 
     FileContainer *(*StateGetFiles)(void *, uint8_t);
+
+    AppLayerGetTxIterTuple (*GetTxIterator)(const uint8_t ipproto,
+            const AppProto alproto, void *alstate, uint64_t min_tx_id,
+            uint64_t max_tx_id, AppLayerGetTxIterState *istate);
 } AppLayerParser;
 
 /**