Standalone: independently destroy the connection and request pools

Add independent modsecFinishConnection API that allows you to independently
destroy the connection and request pools. This is to facilitate reuse of a
connection for multiple requests.

iis/mymodule.cpp

@@ -67,6 +67,10 @@ class REQUEST_STORED_CONTEXT : public IHttpStoredContext
 		{
 			modsecFinishRequest(m_pRequestRec);
 			m_pRequestRec = NULL;
+		}
+		if(m_pConnRec != NULL)
+		{
+			modsecFinishConnection(m_pConnRec);
 			m_pConnRec = NULL;
 		}
 	}

nginx/modsecurity/ngx_http_modsecurity.c

@@ -1356,6 +1356,10 @@ ngx_http_modsecurity_cleanup(void *data)
     if (ctx->req != NULL) {
         (void) modsecFinishRequest(ctx->req);
     }
+    if (ctx->connection != NULL) {
+        (void) modsecFinishConnection(ctx->connection);
+    }
+    
 }
 
     static char *

standalone/api.c

@@ -654,11 +654,20 @@ int modsecFinishRequest(request_rec *r) {
     // make sure you cleanup before calling apr_terminate()
     // otherwise double-free might occur, because of the request body pool cleanup function
     //
-    apr_pool_destroy(r->connection->pool);
+    apr_pool_destroy(r->pool);
 
     return DECLINED;
 }
 
+// destroy only the connection pool
+int modsecFinishConnection(conn_rec *c)
+{
+
+    apr_pool_destroy(c->pool);
+
+}
+
+
 void modsecSetLogHook(void *obj, void (*hook)(void *obj, int level, char *str)) {
     modsecLogObj = obj;
     modsecLogHook = hook;

standalone/api.h

@@ -58,6 +58,7 @@ void modsecInitProcess();
 
 conn_rec *modsecNewConnection();
 void modsecProcessConnection(conn_rec *c);
+int modsecFinishConnection(conn_rec *c);
 
 request_rec *modsecNewRequest(conn_rec *connection, directory_config *config);