[GNUnet-SVN] [gnunet] 02/04: preparations for keepalives

[gnunet]

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grothoff pushed a commit to branch master
in repository gnunet.

commit 1946e3b8873d682d2adc7ce0b2fb30ca38eee943
Author: Christian Grothoff <address@hidden>
AuthorDate: Wed Jan 25 20:38:18 2017 +0100

    preparations for keepalives
---
 src/cadet/gnunet-service-cadet-new.c         | 17 +++++++++++++++++
 src/cadet/gnunet-service-cadet-new.h         |  5 +++++
 src/cadet/gnunet-service-cadet-new_tunnels.c |  2 ++
 3 files changed, 24 insertions(+)

diff --git a/src/cadet/gnunet-service-cadet-new.c 
b/src/cadet/gnunet-service-cadet-new.c
index 97489f3fd..af5ac13ae 100644
--- a/src/cadet/gnunet-service-cadet-new.c
+++ b/src/cadet/gnunet-service-cadet-new.c
@@ -183,6 +183,11 @@ unsigned long long ratchet_messages;
  */
 struct GNUNET_TIME_Relative ratchet_time;
 
+/**
+ * How frequently do we send KEEPALIVE messages on idle connections?
+ */
+struct GNUNET_TIME_Relative keepalive_period;
+
 
 /**
  * Send a message to a client.
@@ -1335,6 +1340,18 @@ run (void *cls,
                                "need delay value");
     ratchet_time = GNUNET_TIME_UNIT_HOURS;
   }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (c,
+                                           "CADET",
+                                           "REFRESHC_CONNECTION_TIME",
+                                           &keepalive_period))
+  {
+    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_WARNING,
+                               "CADET",
+                               "REFRESH_CONNECTION_TIME",
+                               "need delay value");
+    keepalive_period = GNUNET_TIME_UNIT_MINUTES;
+  }
 
   my_private_key = GNUNET_CRYPTO_eddsa_key_create_from_configuration (c);
   if (NULL == my_private_key)
diff --git a/src/cadet/gnunet-service-cadet-new.h 
b/src/cadet/gnunet-service-cadet-new.h
index 4a76c578b..721044ac4 100644
--- a/src/cadet/gnunet-service-cadet-new.h
+++ b/src/cadet/gnunet-service-cadet-new.h
@@ -226,6 +226,11 @@ extern unsigned long long ratchet_messages;
 extern struct GNUNET_TIME_Relative ratchet_time;
 
 /**
+ * How frequently do we send KEEPALIVE messages on idle connections?
+ */
+extern struct GNUNET_TIME_Relative keepalive_period;
+
+/**
  * Signal that shutdown is happening: prevent recovery measures.
  */
 extern int shutting_down;
diff --git a/src/cadet/gnunet-service-cadet-new_tunnels.c 
b/src/cadet/gnunet-service-cadet-new_tunnels.c
index fd8335486..3420c00db 100644
--- a/src/cadet/gnunet-service-cadet-new_tunnels.c
+++ b/src/cadet/gnunet-service-cadet-new_tunnels.c
@@ -24,6 +24,8 @@
  * @author Christian Grothoff
  *
  * FIXME:
+ * - implement keepalive
+ * - implement rekeying
  * - check KX estate machine -- make sure it is never stuck!
  * - clean up KX logic, including adding sender authentication
  * - implement connection management (evaluate, kill old ones,

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