From 2a7eb7cb6d8fcc01e3d06b7c2b107549ae8dab40 Mon Sep 17 00:00:00 2001
From: Julius Bünger <buenger@mytum.de>
Date: Fri, 13 Jul 2018 09:53:05 +0200
Subject: Revert "restructure rps service: start keeping track of channels"

This reverts commit 330bb7242aed7c426cfdbb589155db5bb3fa83dc.
---
 src/rps/gnunet-service-rps.c | 55 +++++++-------------------------------------
 1 file changed, 8 insertions(+), 47 deletions(-)

diff --git a/src/rps/gnunet-service-rps.c b/src/rps/gnunet-service-rps.c
index 5d568dfac..12794945e 100644
--- a/src/rps/gnunet-service-rps.c
+++ b/src/rps/gnunet-service-rps.c
@@ -264,34 +264,6 @@ struct PeersIteratorCls
   void *cls;
 };
 
-/**
- * @brief Context for a channel
- */
-struct ChannelCtx
-{
-  /**
-   * @brief Meant to be used in a DLL
-   */
-  struct ChannelCtx *next;
-  struct ChannelCtx *prev;
-
-  /**
-   * @brief The channel itself
-   */
-  struct GNUNET_CADET_Channel *channel;
-
-  /**
-   * @brief The peer context associated with the channel
-   */
-  struct PeerContext *peer_ctx;
-};
-
-/**
- * @brief The DLL of channel contexts
- */
-static struct ChannelCtx *channel_ctx_head;
-static struct ChannelCtx *channel_ctx_tail;
-
 /**
  * @brief Hashmap of valid peers.
  */
@@ -1549,7 +1521,6 @@ Peers_handle_inbound_channel (void *cls,
 {
   struct PeerContext *peer_ctx;
   struct GNUNET_PeerIdentity *ctx_peer;
-  struct ChannelCtx *channel_ctx;
 
   LOG (GNUNET_ERROR_TYPE_DEBUG,
       "New channel was established to us (Peer %s).\n",
@@ -1560,10 +1531,6 @@ Peers_handle_inbound_channel (void *cls,
   set_peer_live (peer_ctx);
   ctx_peer = GNUNET_new (struct GNUNET_PeerIdentity);
   *ctx_peer = *initiator;
-  channel_ctx = GNUNET_new (struct ChannelCtx);
-  channel_ctx->peer_ctx = peer_ctx;
-  channel_ctx->channel = channel;
-  GNUNET_CONTAINER_DLL_insert (channel_ctx_head, channel_ctx_tail, channel_ctx);
   /* We only accept one incoming channel per peer */
   if (GNUNET_YES == Peers_check_peer_send_intention (initiator))
   {
@@ -1576,10 +1543,10 @@ Peers_handle_inbound_channel (void *cls,
     GNUNET_CADET_channel_destroy (peer_ctx->recv_channel);
     peer_ctx->recv_channel = channel;
     /* return the channel context */
-    return channel_ctx;
+    return ctx_peer;
   }
   peer_ctx->recv_channel = channel;
-  return channel_ctx;
+  return ctx_peer;
 }
 
 
@@ -1691,8 +1658,7 @@ void
 Peers_cleanup_destroyed_channel (void *cls,
                                  const struct GNUNET_CADET_Channel *channel)
 {
-  struct ChannelCtx *channel_ctx = cls;
-  const struct GNUNET_PeerIdentity *peer = &channel_ctx->peer_ctx->peer_id;
+  struct GNUNET_PeerIdentity *peer = cls;
   struct PeerContext *peer_ctx;
   uint32_t *channel_flag;
 
@@ -2704,8 +2670,7 @@ static void
 cleanup_destroyed_channel (void *cls,
                            const struct GNUNET_CADET_Channel *channel)
 {
-  struct ChannelCtx *channel_ctx = cls; // FIXME: free this context!
-  struct GNUNET_PeerIdentity *peer = &channel_ctx->peer_ctx->peer_id;
+  struct GNUNET_PeerIdentity *peer = cls;
   uint32_t *channel_flag;
   struct PeerContext *peer_ctx;
 
@@ -3198,8 +3163,7 @@ static void
 handle_peer_check (void *cls,
                    const struct GNUNET_MessageHeader *msg)
 {
-  const struct ChannelCtx *channel_ctx = cls;
-  const struct GNUNET_PeerIdentity *peer = &channel_ctx->peer_ctx->peer_id;
+  const struct GNUNET_PeerIdentity *peer = cls;
   LOG (GNUNET_ERROR_TYPE_DEBUG,
       "Received CHECK_LIVE (%s)\n", GNUNET_i2s (peer));
 
@@ -3219,8 +3183,7 @@ static void
 handle_peer_push (void *cls,
                   const struct GNUNET_MessageHeader *msg)
 {
-  const struct ChannelCtx *channel_ctx = cls;
-  const struct GNUNET_PeerIdentity *peer = &channel_ctx->peer_ctx->peer_id;
+  const struct GNUNET_PeerIdentity *peer = cls;
 
   // (check the proof of work (?))
 
@@ -3281,8 +3244,7 @@ static void
 handle_peer_pull_request (void *cls,
                           const struct GNUNET_MessageHeader *msg)
 {
-  const struct ChannelCtx *channel_ctx = cls;
-  const struct GNUNET_PeerIdentity *peer = &channel_ctx->peer_ctx->peer_id;
+  struct GNUNET_PeerIdentity *peer = cls;
   const struct GNUNET_PeerIdentity *view_array;
 
   LOG (GNUNET_ERROR_TYPE_DEBUG, "Received PULL REQUEST (%s)\n", GNUNET_i2s (peer));
@@ -3362,9 +3324,8 @@ static void
 handle_peer_pull_reply (void *cls,
                         const struct GNUNET_RPS_P2P_PullReplyMessage *msg)
 {
-  const struct ChannelCtx *channel_ctx = cls;
-  const struct GNUNET_PeerIdentity *sender = &channel_ctx->peer_ctx->peer_id;
   const struct GNUNET_PeerIdentity *peers;
+  struct GNUNET_PeerIdentity *sender = cls;
   uint32_t i;
 #ifdef ENABLE_MALICIOUS
   struct AttackedPeer *tmp_att_peer;
-- 
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