Removed per-node information structures as well as data encoding/decoding

interface.

These were unused and I think won't be required by any proxy type (HTTP and
SOCKS).

nsock/src/nsock_proxy.c

@@ -156,44 +156,17 @@ int nsp_set_proxychain(nsock_pool nspool, nsock_proxychain chain) {
 struct proxy_chain_context *proxy_chain_context_new(nsock_pool nspool) {
   mspool *nsp = (mspool *)nspool;
   struct proxy_chain_context *ctx;
-  gh_list_elem *elt;
 
   ctx = (struct proxy_chain_context *)safe_malloc(sizeof(struct proxy_chain_context));
   ctx->px_chain = nsp->px_chain;
   ctx->px_state = PROXY_STATE_INITIAL;
   ctx->px_current = GH_LIST_FIRST_ELEM(&nsp->px_chain->nodes);
-  gh_list_init(&ctx->px_info);
-
-  for (elt = GH_LIST_FIRST_ELEM(&nsp->px_chain->nodes); elt != NULL; elt = GH_LIST_ELEM_NEXT(elt)) {
-    struct proxy_node *px = (struct proxy_node *)GH_LIST_ELEM_DATA(elt);
-    void *pinfo = NULL;
-
-    px->ops->info_new(&pinfo);
-    gh_list_append(&ctx->px_info, pinfo);
-  }
-
   return ctx;
 }
 
 void proxy_chain_context_delete(struct proxy_chain_context *ctx) {
-  if (ctx) {
-    gh_list_elem *pxe;
-
-    assert(GH_LIST_COUNT(&ctx->px_chain->nodes) == GH_LIST_COUNT(&ctx->px_info));
-
-    for (pxe = GH_LIST_FIRST_ELEM(&ctx->px_chain->nodes); pxe != NULL; pxe = GH_LIST_ELEM_NEXT(pxe)) {
-      struct proxy_node *pxn;
-      void *px_info;
-
-      pxn = (struct proxy_node *)GH_LIST_ELEM_DATA(pxe);
-      px_info = gh_list_pop(&ctx->px_info);
-
-      pxn->ops->info_delete(px_info);
-    }
-
-    gh_list_free(&ctx->px_info);
+  if (ctx)
     free(ctx);
-  }
 }
 
 static char *mkstr(const char *start, const char *end) {

nsock/src/nsock_proxy.h

@@ -118,15 +118,14 @@ struct proxy_chain {
 struct proxy_chain_context {
   const struct proxy_chain *px_chain;
 
-  /* Those fields are used to store current state during the tunnel
-   * establishment phase. */
+  /* Nodes iterator in px_chain->nodes */
   gh_list_elem *px_current;
+  
+  /* Current node connection state. */
   enum nsock_proxy_state px_state;
 
-  /* Each proxy in the chain maintains a data structure. This can contains r/w
-   * buffers for instance. */
-  gh_list px_info;
-
+  /* Those fields are used to store information about the final target
+   * to reach. */
   struct sockaddr_storage target_ss;
   size_t target_sslen;
   unsigned short target_port;
@@ -136,17 +135,9 @@ struct proxy_chain_context {
 struct proxy_op {
   const char *prefix;
   enum nsock_proxy_type type;
-
   int (*node_new)(struct proxy_node **node, const struct uri *uri);
   void (*node_delete)(struct proxy_node *node);
-
-  int (*info_new)(void **info);
-  void (*info_delete)(void *info);
-
   void (*handler)(nsock_pool nspool, nsock_event nsevent, void *udata);
-
-  char *(*encode)(const char *src, size_t len, size_t *dlen);
-  char *(*decode)(const char *src, size_t len, size_t *dlen);
 };
 
 

nsock/src/proxy_http.c

@@ -69,11 +69,7 @@ struct http_proxy_info {
 /* ---- PROTOTYPES ---- */
 static int proxy_http_node_new(struct proxy_node **node, const struct uri *uri);
 static void proxy_http_node_delete(struct proxy_node *node);
-static int proxy_http_info_new(void **info);
-static void proxy_http_info_delete(void *info);
 static void proxy_http_handler(nsock_pool nspool, nsock_event nsevent, void *udata);
-static char *proxy_http_encode(const char *src, size_t len, size_t *dlen);
-static char *proxy_http_decode(const char *src, size_t len, size_t *dlen);
 
 
 /* ---- PROXY DEFINITION ---- */
@@ -82,11 +78,7 @@ const struct proxy_op proxy_http_ops = {
   .type        = PROXY_TYPE_HTTP,
   .node_new    = proxy_http_node_new,
   .node_delete = proxy_http_node_delete,
-  .info_new    = proxy_http_info_new,
-  .info_delete = proxy_http_info_delete,
   .handler     = proxy_http_handler,
-  .encode      = proxy_http_encode,
-  .decode      = proxy_http_decode
 };
 
 
@@ -118,22 +110,6 @@ void proxy_http_node_delete(struct proxy_node *node) {
     free(node);
 }
 
-int proxy_http_info_new(void **info) {
-  struct http_proxy_info *pxi;
-
-  pxi = (struct http_proxy_info *)safe_zalloc(sizeof(struct http_proxy_info));
-  pxi->dummy = NULL; // TODO
-
-  *info = pxi;
-
-  return 1;
-}
-
-void proxy_http_info_delete(void *info) {
-  if (info)
-    free(info);
-}
-
 void proxy_http_handler(nsock_pool nspool, nsock_event nsevent, void *udata) {
   mspool *nsp = (mspool *)nspool;
   msevent *nse = (msevent *)nsevent;
@@ -180,7 +156,6 @@ void proxy_http_handler(nsock_pool nspool, nsock_event nsevent, void *udata) {
         } else {
           nse->iod->px_ctx->px_current = nse->iod->px_ctx->px_current->next;
           nse->iod->px_ctx->px_state = PROXY_STATE_INITIAL;
-
           nsock_proxy_ev_dispatch(nsp, nse, udata);
         }
       }
@@ -195,13 +170,3 @@ void proxy_http_handler(nsock_pool nspool, nsock_event nsevent, void *udata) {
   }
 }
 
-char *proxy_http_encode(const char *src, size_t len, size_t *dlen) {
-  // TODO
-  return NULL;
-}
-
-char *proxy_http_decode(const char *src, size_t len, size_t *dlen) {
-  // TODO
-  return NULL;
-}
-