log: add \n
[oweals/gnunet.git] / src / conversation / conversation_api.c
index fd3842fb457809daed9d585d00e692735d39bcd8..8a74f0ca69eca9bcce6d2edbd0f7c43900865b93 100644 (file)
@@ -1,6 +1,6 @@
 /*
   This file is part of GNUnet
-  Copyright (C) 2013, 2014 Christian Grothoff (and other contributing authors)
+  Copyright (C) 2013, 2014 GNUnet e.V.
 
   GNUnet is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published
@@ -160,11 +160,6 @@ struct GNUNET_CONVERSATION_Phone
    */
   const struct GNUNET_CONFIGURATION_Handle *cfg;
 
-  /**
-   * Handle to talk with CONVERSATION service.
-   */
-  struct GNUNET_CLIENT_Connection *client;
-
   /**
    * We keep all callers in a DLL.
    */
@@ -243,8 +238,11 @@ transmit_phone_audio (void *cls,
                            data_size,
                            GNUNET_MESSAGE_TYPE_CONVERSATION_CS_AUDIO);
   am->cid = caller->cid;
-  memcpy (&am[1], data, data_size);
-  GNUNET_MQ_send (phone->mq, e);
+  GNUNET_memcpy (&am[1],
+                 data,
+                 data_size);
+  GNUNET_MQ_send (phone->mq,
+                  e);
 }
 
 
@@ -252,17 +250,15 @@ transmit_phone_audio (void *cls,
  * We received a `struct ClientPhoneRingMessage`
  *
  * @param cls the `struct GNUNET_CONVERSATION_Phone`
- * @param msg the message
+ * @param ring the message
  */
 static void
 handle_phone_ring (void *cls,
-                   const struct GNUNET_MessageHeader *msg)
+                   const struct ClientPhoneRingMessage *ring)
 {
   struct GNUNET_CONVERSATION_Phone *phone = cls;
-  const struct ClientPhoneRingMessage *ring;
   struct GNUNET_CONVERSATION_Caller *caller;
 
-  ring = (const struct ClientPhoneRingMessage *) msg;
   switch (phone->state)
   {
   case PS_REGISTER:
@@ -286,6 +282,26 @@ handle_phone_ring (void *cls,
 }
 
 
+/**
+ * Find the record of the caller matching the @a cid
+ *
+ * @param phone phone to search
+ * @param cid caller ID to search for (in NBO)
+ * @return NULL if @a cid was not found
+ */
+static struct GNUNET_CONVERSATION_Caller *
+find_caller (struct GNUNET_CONVERSATION_Phone *phone,
+             uint32_t cid)
+{
+  struct GNUNET_CONVERSATION_Caller *caller;
+
+  for (caller = phone->caller_head;NULL != caller;caller = caller->next)
+    if (cid == caller->cid)
+      return caller;
+  return NULL;
+}
+
+
 /**
  * We received a `struct ClientPhoneHangupMessage`.
  *
@@ -294,16 +310,13 @@ handle_phone_ring (void *cls,
  */
 static void
 handle_phone_hangup (void *cls,
-                     const struct GNUNET_MessageHeader *msg)
+                     const struct ClientPhoneHangupMessage *hang)
 {
   struct GNUNET_CONVERSATION_Phone *phone = cls;
-  const struct ClientPhoneHangupMessage *hang;
   struct GNUNET_CONVERSATION_Caller *caller;
 
-  hang = (const struct ClientPhoneHangupMessage *) msg;
-  for (caller = phone->caller_head; NULL != caller; caller = caller->next)
-    if (hang->cid == caller->cid)
-      break;
+  caller = find_caller (phone,
+                        hang->cid);
   if (NULL == caller)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
@@ -351,20 +364,17 @@ handle_phone_hangup (void *cls,
  * We received a `struct ClientPhoneSuspendMessage`.
  *
  * @param cls the `struct GNUNET_CONVERSATION_Phone`
- * @param msg the message
+ * @param suspend the message
  */
 static void
 handle_phone_suspend (void *cls,
-                     const struct GNUNET_MessageHeader *msg)
+                     const struct ClientPhoneSuspendMessage *suspend)
 {
   struct GNUNET_CONVERSATION_Phone *phone = cls;
   struct GNUNET_CONVERSATION_Caller *caller;
-  const struct ClientPhoneSuspendMessage *suspend;
 
-  suspend = (const struct ClientPhoneSuspendMessage *) msg;
-  for (caller = phone->caller_head; NULL != caller; caller = caller->next)
-    if (suspend->cid == caller->cid)
-      break;
+  caller = find_caller (phone,
+                        suspend->cid);
   if (NULL == caller)
     return;
   switch (caller->state)
@@ -396,20 +406,17 @@ handle_phone_suspend (void *cls,
  * We received a `struct ClientPhoneResumeMessage`.
  *
  * @param cls the `struct GNUNET_CONVERSATION_Phone`
- * @param msg the message
+ * @param resume the message
  */
 static void
 handle_phone_resume (void *cls,
-                     const struct GNUNET_MessageHeader *msg)
+                    const struct ClientPhoneResumeMessage *resume)
 {
   struct GNUNET_CONVERSATION_Phone *phone = cls;
   struct GNUNET_CONVERSATION_Caller *caller;
-  const struct ClientPhoneResumeMessage *resume;
 
-  resume = (const struct ClientPhoneResumeMessage *) msg;
-  for (caller = phone->caller_head; NULL != caller; caller = caller->next)
-    if (resume->cid == caller->cid)
-      break;
+  caller = find_caller (phone,
+                        resume->cid);
   if (NULL == caller)
     return;
   switch (caller->state)
@@ -439,24 +446,37 @@ handle_phone_resume (void *cls,
 }
 
 
+/**
+ * We received a `struct ClientAudioMessage`, check it is well-formed.
+ *
+ * @param cls the `struct GNUNET_CONVERSATION_Phone`
+ * @param am the message
+ * @return #GNUNET_OK if @a am is well-formed
+ */
+static int
+check_phone_audio (void *cls,
+                  const struct ClientAudioMessage *am)
+{
+  /* any variable-size payload is OK */
+  return GNUNET_OK;
+}
+
+
 /**
  * We received a `struct ClientAudioMessage`
  *
  * @param cls the `struct GNUNET_CONVERSATION_Phone`
- * @param msg the message
+ * @param am the message
  */
 static void
-handle_phone_audio_message (void *cls,
-                            const struct GNUNET_MessageHeader *msg)
+handle_phone_audio (void *cls,
+                   const struct ClientAudioMessage *am)
 {
   struct GNUNET_CONVERSATION_Phone *phone = cls;
-  const struct ClientAudioMessage *am;
   struct GNUNET_CONVERSATION_Caller *caller;
 
-  am = (const struct ClientAudioMessage *) msg;
-  for (caller = phone->caller_head; NULL != caller; caller = caller->next)
-    if (am->cid == caller->cid)
-      break;
+  caller = find_caller (phone,
+                        am->cid);
   if (NULL == caller)
     return;
   switch (caller->state)
@@ -466,7 +486,7 @@ handle_phone_audio_message (void *cls,
     break;
   case CS_ACTIVE:
     caller->speaker->play (caller->speaker->cls,
-                           ntohs (msg->size) - sizeof (struct ClientAudioMessage),
+                           ntohs (am->header.size) - sizeof (struct ClientAudioMessage),
                            &am[1]);
     break;
   case CS_CALLEE_SUSPENDED:
@@ -531,24 +551,28 @@ clean_up_callers (struct GNUNET_CONVERSATION_Phone *phone)
 static void
 reconnect_phone (struct GNUNET_CONVERSATION_Phone *phone)
 {
-  static struct GNUNET_MQ_MessageHandler handlers[] =
-  {
-    { &handle_phone_ring,
-      GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RING,
-      sizeof (struct ClientPhoneRingMessage) },
-    { &handle_phone_hangup,
-      GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_HANG_UP,
-      sizeof (struct ClientPhoneHangupMessage) },
-    { &handle_phone_suspend,
-      GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_SUSPEND,
-      sizeof (struct ClientPhoneSuspendMessage) },
-    { &handle_phone_resume,
-      GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RESUME,
-      sizeof (struct ClientPhoneResumeMessage) },
-    { &handle_phone_audio_message,
-      GNUNET_MESSAGE_TYPE_CONVERSATION_CS_AUDIO,
-      0 },
-    { NULL, 0, 0 }
+  struct GNUNET_MQ_MessageHandler handlers[] = {
+    GNUNET_MQ_hd_fixed_size (phone_ring,
+                             GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RING,
+                             struct ClientPhoneRingMessage,
+                             phone),
+    GNUNET_MQ_hd_fixed_size (phone_hangup,
+                             GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_HANG_UP,
+                             struct ClientPhoneHangupMessage,
+                             phone),
+    GNUNET_MQ_hd_fixed_size (phone_suspend,
+                             GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_SUSPEND,
+                             struct ClientPhoneSuspendMessage,
+                             phone),
+    GNUNET_MQ_hd_fixed_size (phone_resume,
+                             GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RESUME,
+                             struct ClientPhoneResumeMessage,
+                             phone),
+    GNUNET_MQ_hd_var_size (phone_audio,
+                           GNUNET_MESSAGE_TYPE_CONVERSATION_CS_AUDIO,
+                           struct ClientAudioMessage,
+                           phone),
+    GNUNET_MQ_handler_end ()
   };
   struct GNUNET_MQ_Envelope *e;
   struct ClientPhoneRegisterMessage *reg;
@@ -559,22 +583,19 @@ reconnect_phone (struct GNUNET_CONVERSATION_Phone *phone)
     GNUNET_MQ_destroy (phone->mq);
     phone->mq = NULL;
   }
-  if (NULL != phone->client)
-  {
-    GNUNET_CLIENT_disconnect (phone->client);
-    phone->client = NULL;
-  }
   phone->state = PS_REGISTER;
-  phone->client = GNUNET_CLIENT_connect ("conversation", phone->cfg);
-  if (NULL == phone->client)
+  phone->mq = GNUNET_CLIENT_connecT (phone->cfg,
+                                     "conversation",
+                                     handlers,
+                                     &phone_error_handler,
+                                     phone);
+  if (NULL == phone->mq)
     return;
-  phone->mq = GNUNET_MQ_queue_for_connection_client (phone->client,
-                                                     handlers,
-                                                     &phone_error_handler,
-                                                     phone);
-  e = GNUNET_MQ_msg (reg, GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_REGISTER);
-  reg->line = phone->my_record.line;
-  GNUNET_MQ_send (phone->mq, e);
+  e = GNUNET_MQ_msg (reg,
+                     GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_REGISTER);
+  reg->line_port = phone->my_record.line_port;
+  GNUNET_MQ_send (phone->mq,
+                  e);
   phone->state = PS_READY;
 }
 
@@ -596,10 +617,11 @@ GNUNET_CONVERSATION_phone_create (const struct GNUNET_CONFIGURATION_Handle *cfg,
                                  void *event_handler_cls)
 {
   struct GNUNET_CONVERSATION_Phone *phone;
-  unsigned long long line;
+  char *line;
+  struct GNUNET_HashCode line_port;
 
   if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_number (cfg,
+      GNUNET_CONFIGURATION_get_value_string (cfg,
                                              "CONVERSATION",
                                              "LINE",
                                              &line))
@@ -609,14 +631,9 @@ GNUNET_CONVERSATION_phone_create (const struct GNUNET_CONFIGURATION_Handle *cfg,
                                "LINE");
     return NULL;
   }
-  if (line >= (1 << 31))
-  {
-    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "CONVERSATION",
-                               "LINE",
-                               _("number too large"));
-    return NULL;
-  }
+  GNUNET_CRYPTO_hash (line,
+                      strlen (line),
+                      &line_port);
   phone = GNUNET_new (struct GNUNET_CONVERSATION_Phone);
   if (GNUNET_OK !=
       GNUNET_CRYPTO_get_peer_identity (cfg,
@@ -631,10 +648,11 @@ GNUNET_CONVERSATION_phone_create (const struct GNUNET_CONFIGURATION_Handle *cfg,
   phone->event_handler = event_handler;
   phone->event_handler_cls = event_handler_cls;
   phone->ns = GNUNET_NAMESTORE_connect (cfg);
-  phone->my_record.line = htonl ((uint32_t) line);
-  phone->my_record.version = htonl (0);
+  phone->my_record.version = htonl (1);
+  phone->my_record.reserved = htonl (0);
+  phone->my_record.line_port = line_port;
   reconnect_phone (phone);
-  if ( (NULL == phone->client) ||
+  if ( (NULL == phone->mq) ||
        (NULL == phone->ns) )
   {
     GNUNET_break (0);
@@ -689,9 +707,11 @@ GNUNET_CONVERSATION_caller_pick_up (struct GNUNET_CONVERSATION_Caller *caller,
   GNUNET_assert (CS_RINGING == caller->state);
   caller->speaker = speaker;
   caller->mic = mic;
-  e = GNUNET_MQ_msg (pick, GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_PICK_UP);
+  e = GNUNET_MQ_msg (pick,
+                     GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_PICK_UP);
   pick->cid = caller->cid;
-  GNUNET_MQ_send (phone->mq, e);
+  GNUNET_MQ_send (phone->mq,
+                  e);
   caller->state = CS_ACTIVE;
   caller->event_handler = event_handler;
   caller->event_handler_cls = event_handler_cls;
@@ -730,7 +750,8 @@ GNUNET_CONVERSATION_caller_hang_up (struct GNUNET_CONVERSATION_Caller *caller)
   e = GNUNET_MQ_msg (hang,
                      GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_HANG_UP);
   hang->cid = caller->cid;
-  GNUNET_MQ_send (phone->mq, e);
+  GNUNET_MQ_send (phone->mq,
+                  e);
   GNUNET_free (caller);
 }
 
@@ -754,11 +775,6 @@ GNUNET_CONVERSATION_phone_destroy (struct GNUNET_CONVERSATION_Phone *phone)
     GNUNET_MQ_destroy (phone->mq);
     phone->mq = NULL;
   }
-  if (NULL != phone->client)
-  {
-    GNUNET_CLIENT_disconnect (phone->client);
-    phone->client = NULL;
-  }
   GNUNET_free (phone);
 }
 
@@ -786,9 +802,11 @@ GNUNET_CONVERSATION_caller_suspend (struct GNUNET_CONVERSATION_Caller *caller)
   }
   caller->speaker = NULL;
   caller->mic = NULL;
-  e = GNUNET_MQ_msg (suspend, GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_SUSPEND);
+  e = GNUNET_MQ_msg (suspend,
+                     GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_SUSPEND);
   suspend->cid = caller->cid;
-  GNUNET_MQ_send (phone->mq, e);
+  GNUNET_MQ_send (phone->mq,
+                  e);
   if (CS_ACTIVE == caller->state)
     caller->state = CS_CALLEE_SUSPENDED;
   else
@@ -816,9 +834,11 @@ GNUNET_CONVERSATION_caller_resume (struct GNUNET_CONVERSATION_Caller *caller,
                   (CS_BOTH_SUSPENDED == caller->state) );
   caller->speaker = speaker;
   caller->mic = mic;
-  e = GNUNET_MQ_msg (resume, GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RESUME);
+  e = GNUNET_MQ_msg (resume,
+                     GNUNET_MESSAGE_TYPE_CONVERSATION_CS_PHONE_RESUME);
   resume->cid = caller->cid;
-  GNUNET_MQ_send (phone->mq, e);
+  GNUNET_MQ_send (phone->mq,
+                  e);
   if (CS_CALLEE_SUSPENDED == caller->state)
   {
     caller->state = CS_ACTIVE;