X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Fcore%2Fgnunet-service-core_kx.h;h=28293e6072143de5e920c797e7f2c72ca2a95a1e;hb=81ea73fcf38405a714d949189ed0ec6bc5b6bea6;hp=f4f1daaeb9ed692447fe9ecad914b2ffd1997101;hpb=0f29195adbd56ae10dea70c2951333c13e765f88;p=oweals%2Fgnunet.git

diff --git a/src/core/gnunet-service-core_kx.h b/src/core/gnunet-service-core_kx.h
index f4f1daaeb..28293e607 100644
--- a/src/core/gnunet-service-core_kx.h
+++ b/src/core/gnunet-service-core_kx.h
@@ -1,77 +1,102 @@
-struct GSC_KeyExchangeInfo
-{
-
-  /**
-   * SetKeyMessage to transmit, NULL if we are not currently trying
-   * to send one.
-   */
-  struct SetKeyMessage *skm;
-
-  /**
-   * Non-NULL if we are currently looking up HELLOs for this peer.
-   * for this peer.
-   */
-  struct GNUNET_PEERINFO_IteratorContext *pitr;
-
-  /**
-   * Public key of the neighbour, NULL if we don't have it yet.
-   */
-  struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *public_key;
-
-  /**
-   * We received a PING message before we got the "public_key"
-   * (or the SET_KEY).  We keep it here until we have a key
-   * to decrypt it.  NULL if no PING is pending.
-   */
-  struct PingMessage *pending_ping;
-
-  /**
-   * We received a PONG message before we got the "public_key"
-   * (or the SET_KEY).  We keep it here until we have a key
-   * to decrypt it.  NULL if no PONG is pending.
-   */
-  struct PongMessage *pending_pong;
-
-  /**
-   * Key we use to encrypt our messages for the other peer
-   * (initialized by us when we do the handshake).
-   */
-  struct GNUNET_CRYPTO_AesSessionKey encrypt_key;
-
-  /**
-   * Key we use to decrypt messages from the other peer
-   * (given to us by the other peer during the handshake).
-   */
-  struct GNUNET_CRYPTO_AesSessionKey decrypt_key;
-
-  /**
-   * At what time did we generate our encryption key?
-   */
-  struct GNUNET_TIME_Absolute encrypt_key_created;
-
-  /**
-   * At what time did the other peer generate the decryption key?
-   */
-  struct GNUNET_TIME_Absolute decrypt_key_created;
-
-  /**
-   * At what frequency are we currently re-trying SET_KEY messages?
-   */
-  struct GNUNET_TIME_Relative set_key_retry_frequency;
-
-  /**
-   * ID of task used for re-trying SET_KEY and PING message.
-   */
-  GNUNET_SCHEDULER_TaskIdentifier retry_set_key_task;
-
-  /**
-   * What was our PING challenge number (for this peer)?
-   */
-  uint32_t ping_challenge;
-
-  /**
-   * What is our connection status?
-   */
-  enum PeerStateMachine status;
-
-};
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2009, 2010, 2011 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
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
+*/
+
+/**
+ * @file core/gnunet-service-core_kx.h
+ * @brief code for managing the key exchange (SET_KEY, PING, PONG) with other peers
+ * @author Christian Grothoff
+ */
+#ifndef GNUNET_SERVICE_CORE_KX_H
+#define GNUNET_SERVICE_CORE_KX_H
+
+#include "gnunet_util_lib.h"
+#include "gnunet_transport_service.h"
+
+
+/**
+ * Information about the status of a key exchange with another peer.
+ */
+struct GSC_KeyExchangeInfo;
+
+
+/**
+ * Encrypt and transmit a message with the given payload.
+ *
+ * @param kx key exchange context
+ * @param payload payload of the message
+ * @param payload_size number of bytes in 'payload'
+ */
+void
+GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo *kx,
+                             const void *payload,
+			     size_t payload_size);
+
+
+/**
+ * Initialize KX subsystem.
+ *
+ * @param pk private key to use for the peer
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
+ */
+int
+GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk);
+
+
+/**
+ * Shutdown KX subsystem.
+ */
+void
+GSC_KX_done (void);
+
+
+/**
+ * Check if the given neighbour has excess bandwidth available.
+ *
+ * @param target neighbour to check
+ * @return #GNUNET_YES if excess bandwidth is available, #GNUNET_NO if not
+ */
+int
+GSC_NEIGHBOURS_check_excess_bandwidth (const struct GSC_KeyExchangeInfo *target);
+
+
+/**
+ * Check how many messages are queued for the given neighbour.
+ *
+ * @param target neighbour to check
+ * @return number of items in the message queue
+ */
+unsigned int
+GSC_NEIGHBOURS_get_queue_length (const struct GSC_KeyExchangeInfo *target);
+
+
+/**
+ * Handle #GNUNET_MESSAGE_TYPE_CORE_MONITOR_PEERS request.  For this
+ * request type, the client does not have to have transmitted an INIT
+ * request.  All current peers are returned, regardless of which
+ * message types they accept.
+ *
+ * @param mq message queue to add for monitoring
+ */
+void
+GSC_KX_handle_client_monitor_peers (struct GNUNET_MQ_Handle *mq);
+
+
+#endif
+/* end of gnunet-service-core_kx.h */