gnunet-service-messenger_message_send.h File Reference

#include "gnunet-service-messenger_room.h"

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Functions
void	send_message_join (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
	Handles a sent join message to ensure growth of the decentralized room structure.
void	send_message_key (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
	Handles a sent key message to ensure changes to the public key of the sending handle.
void	send_message_peer (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
	Handles a sent peer message to update the rooms peer message of this service.
void	send_message_id (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
	Handles a sent id message to update the handles member id in the room.
void	send_message_request (struct GNUNET_MESSENGER_SrvRoom *room, struct GNUNET_MESSENGER_SrvHandle *handle, const struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash)
	Handles a sent request message to trigger the request operation for this service.

Function Documentation

send_message_join()

void send_message_join	(	struct GNUNET_MESSENGER_SrvRoom *	room,
		struct GNUNET_MESSENGER_SrvHandle *	handle,
		const struct GNUNET_MESSENGER_Message *	message,
		const struct GNUNET_HashCode *	hash
	)

Handles a sent join message to ensure growth of the decentralized room structure.

(if the service provides a peer message for this room currently, it will be forwarded)

Parameters

[in,out]	room	Room of the message
[in,out]	handle	Sending handle
[in]	message	JOIN-Message
[in]	hash	Hash of the message

Definition at line 340 of file gnunet-service-messenger_message_send.c.

{
  struct GNUNET_MESSENGER_MemberStore *member_store;
  struct GNUNET_MESSENGER_Member *member;
  struct GNUNET_MESSENGER_MemberSession *session;
 
  set_srv_handle_key (handle, &(message->body.join.key));
 
  member_store = get_srv_room_member_store (room);
  member = add_store_member (member_store,
                             &(message->header.sender_id));
 
  if (! member)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                "A member could not join with ID: %s\n",
                GNUNET_sh2s (&(message->header.sender_id)));
    goto skip_member_notification;
  }
 
  session = get_member_session_of (member, message, hash);
 
  if (! session)
  {
    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                "A valid session is required to join a room!\n");
    goto skip_member_notification;
  }
 
  {
    struct GNUNET_MESSENGER_MemberNotify notify;
 
    notify.room = room;
    notify.handle = handle;
    notify.session = session;
    notify.map = GNUNET_CONTAINER_multihashmap_create (8, GNUNET_NO);
    notify.epoch_counter = 0;
 
    if (notify.map)
    {
      uint32_t epoch_count;
 
      iterate_store_members (member_store, iterate_epoch_session_members, &
                             notify);
 
      epoch_count = GNUNET_CONTAINER_multihashmap_size (notify.map);
 
      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                  "Notify about all (%u) related epochs for current membership verification!\n",
                  epoch_count);
 
      traverse_epoch_message (&notify, &(message->body.join.epoch));
 
      if (epoch_count > notify.epoch_counter)
      {
        uint32_t missing;
 
        missing = epoch_count - notify.epoch_counter;
 
        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                    "Missing at least %u epoch%s for current membership verification!\n",
                    missing, missing > 1? "s" : "");
      }
    }
 
    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                "Notify about all member sessions except: %s\n",
                GNUNET_sh2s (get_member_session_id (session)));
 
    iterate_store_members (member_store, iterate_notify_about_members, &notify);
 
    if (notify.map)
      GNUNET_CONTAINER_multihashmap_destroy (notify.map);
  }
 
skip_member_notification:
  check_srv_room_peer_status (room, NULL);
}

References add_store_member(), GNUNET_MESSENGER_Message::body, check_srv_room_peer_status(), GNUNET_MESSENGER_MessageJoin::epoch, GNUNET_MESSENGER_MemberNotify::epoch_counter, get_member_session_id(), get_member_session_of(), get_srv_room_member_store(), GNUNET_CONTAINER_multihashmap_create(), GNUNET_CONTAINER_multihashmap_destroy(), GNUNET_CONTAINER_multihashmap_size(), GNUNET_ERROR_TYPE_DEBUG, GNUNET_ERROR_TYPE_WARNING, GNUNET_log, GNUNET_NO, GNUNET_sh2s(), handle, GNUNET_MESSENGER_MemberNotify::handle, GNUNET_MESSENGER_Message::header, iterate_epoch_session_members(), iterate_notify_about_members(), iterate_store_members(), GNUNET_MESSENGER_MessageBody::join, GNUNET_MESSENGER_MessageJoin::key, GNUNET_MESSENGER_MemberNotify::map, GNUNET_MESSENGER_MemberSession::member, GNUNET_MESSENGER_MemberNotify::room, GNUNET_MESSENGER_MessageHeader::sender_id, GNUNET_MESSENGER_MemberNotify::session, set_srv_handle_key(), and traverse_epoch_message().

Referenced by send_srv_room_message().

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send_message_key()

void send_message_key	(	struct GNUNET_MESSENGER_SrvRoom *	room,
		struct GNUNET_MESSENGER_SrvHandle *	handle,
		const struct GNUNET_MESSENGER_Message *	message,
		const struct GNUNET_HashCode *	hash
	)

Handles a sent key message to ensure changes to the public key of the sending handle.

Parameters

[in,out]	room	Room of the message
[in,out]	handle	Sending handle
[in]	message	KEY-Message
[in]	hash	Hash of the message

Definition at line 424 of file gnunet-service-messenger_message_send.c.

{
  set_srv_handle_key (handle, &(message->body.key.key));
}

References GNUNET_MESSENGER_Message::body, handle, GNUNET_MESSENGER_MessageKey::key, GNUNET_MESSENGER_MessageBody::key, and set_srv_handle_key().

Referenced by send_srv_room_message().

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send_message_peer()

void send_message_peer	(	struct GNUNET_MESSENGER_SrvRoom *	room,
		struct GNUNET_MESSENGER_SrvHandle *	handle,
		const struct GNUNET_MESSENGER_Message *	message,
		const struct GNUNET_HashCode *	hash
	)

Handles a sent peer message to update the rooms peer message of this service.

(a set peer message indicates this service being a part of the decentralized room structure)

Parameters

[in,out]	room	Room of the message
[in,out]	handle	Sending handle
[in]	message	PEER-Message
[in]	hash	Hash of the message

Definition at line 434 of file gnunet-service-messenger_message_send.c.

{
  struct GNUNET_MESSENGER_Message *msg;
 
  if (! room->peer_message)
    room->peer_message = GNUNET_new (struct GNUNET_HashCode);
 
  GNUNET_memcpy (room->peer_message, hash, sizeof(struct GNUNET_HashCode));
 
  msg = create_message_connection (room);
 
  if (! msg)
    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                "Sending connection message failed: %s\n",
                GNUNET_h2s (&(room->key)));
  else
    send_srv_room_message (room, room->host, msg);
}

References create_message_connection(), GNUNET_ERROR_TYPE_ERROR, GNUNET_h2s(), GNUNET_log, GNUNET_memcpy, GNUNET_new, GNUNET_MESSENGER_SrvRoom::host, GNUNET_MESSENGER_SrvRoom::key, msg, GNUNET_MESSENGER_SrvRoom::peer_message, and send_srv_room_message().

Referenced by send_srv_room_message().

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send_message_id()

void send_message_id	(	struct GNUNET_MESSENGER_SrvRoom *	room,
		struct GNUNET_MESSENGER_SrvHandle *	handle,
		const struct GNUNET_MESSENGER_Message *	message,
		const struct GNUNET_HashCode *	hash
	)

Handles a sent id message to update the handles member id in the room.

(changing member id is useful to prevent collisions)

Parameters

[in,out]	room	Room of the message
[in,out]	handle	Sending handle
[in]	message	ID-Message
[in]	hash	Hash of the message

Definition at line 458 of file gnunet-service-messenger_message_send.c.

{
  change_srv_handle_member_id (handle, get_srv_room_key (room),
                               &(message->body.id.id));
}

References GNUNET_MESSENGER_Message::body, change_srv_handle_member_id(), get_srv_room_key(), handle, GNUNET_MESSENGER_MessageId::id, and GNUNET_MESSENGER_MessageBody::id.

Referenced by send_srv_room_message().

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send_message_request()

void send_message_request	(	struct GNUNET_MESSENGER_SrvRoom *	room,
		struct GNUNET_MESSENGER_SrvHandle *	handle,
		const struct GNUNET_MESSENGER_Message *	message,
		const struct GNUNET_HashCode *	hash
	)

Handles a sent request message to trigger the request operation for this service.

(the request operation will deactivate the possibility of spamming requests)

Parameters

[in,out]	room	Room of the message
[in,out]	handle	Sending handle
[in]	message	REQUEST-Message
[in]	hash	Hash of the message

Definition at line 469 of file gnunet-service-messenger_message_send.c.

{
  struct GNUNET_MESSENGER_OperationStore *operation_store;
 
  operation_store = get_srv_room_operation_store (room);
 
  use_store_operation (
    operation_store,
    &(message->body.request.hash),
    GNUNET_MESSENGER_OP_REQUEST,
    GNUNET_MESSENGER_REQUEST_DELAY);
}

References GNUNET_MESSENGER_Message::body, get_srv_room_operation_store(), GNUNET_MESSENGER_OP_REQUEST, GNUNET_MESSENGER_REQUEST_DELAY, GNUNET_MESSENGER_MessageRequest::hash, GNUNET_MESSENGER_MessageBody::request, GNUNET_MESSENGER_OperationStore::room, and use_store_operation().

Referenced by send_srv_room_message().

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