--- a/src/http/ngx_http_config.h
+++ b/src/http/ngx_http_config.h
@@ -12,14 +12,39 @@ typedef struct {
 } ngx_http_conf_ctx_t;
 
 
+typedef struct {
+    int    (*output_header_filter) (ngx_http_request_t *r);
+    int    (*output_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch);
+} ngx_http_conf_filter_t;
+
+
+typedef struct {
+    void  *(*create_srv_conf)(ngx_pool_t *p);
+    char  *(*init_srv_conf)(ngx_pool_t *p, void *conf);
+
+    void  *(*create_loc_conf)(ngx_pool_t *p);
+    char  *(*merge_loc_conf)(ngx_pool_t *p, void *prev, void *conf);
+
+    void   (*init_filters) (ngx_pool_t *p, ngx_http_conf_filter_t *cf);
+} ngx_http_module_t;
+
+
+#define NGX_HTTP_MODULE_TYPE      0x50545448   /* "HTTP" */
+
+
 #define NGX_HTTP_MAIN_CONF        0x1000000
 #define NGX_HTTP_SRV_CONF         0x2000000
 #define NGX_HTTP_LOC_CONF         0x6000000
 
+
 #define NGX_HTTP_SRV_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, srv_conf)
 #define NGX_HTTP_LOC_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, loc_conf)
 
 
+#define ngx_http_get_module_srv_conf(r, module)  r->srv_conf[module.index]
+#define ngx_http_get_module_loc_conf(r, module)  r->loc_conf[module.index]
+
+
 int ngx_http_config_modules(ngx_pool_t *pool, ngx_module_t **modules);
 
 
@@ -28,8 +53,5 @@ extern ngx_module_t  ngx_http_module;
 
 extern int (*ngx_http_top_header_filter) (ngx_http_request_t *r);
 
-extern void **ngx_srv_conf;
-extern void **ngx_loc_conf;
-
 
 #endif /* _NGX_HTTP_CONFIG_H_INCLUDED_ */