/*
This file is part of GNUnet.
- Copyright (C) 2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2013 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
*/
struct CadetClient
{
- /**
- * Linked list next
- */
+ /**
+ * Linked list next
+ */
struct CadetClient *next;
- /**
- * Linked list prev
- */
+ /**
+ * Linked list prev
+ */
struct CadetClient *prev;
- /**
- * Tunnels that belong to this client, indexed by local id
- */
+ /**
+ * Tunnels that belong to this client, indexed by local id
+ */
struct GNUNET_CONTAINER_MultiHashMap32 *own_channels;
-
- /**
- * Tunnels this client has accepted, indexed by incoming local id
- */
+
+ /**
+ * Tunnels this client has accepted, indexed by incoming local id
+ */
struct GNUNET_CONTAINER_MultiHashMap32 *incoming_channels;
- /**
- * Channel ID for the next incoming channel.
- */
+ /**
+ * Channel ID for the next incoming channel.
+ */
CADET_ChannelNumber next_chid;
- /**
- * Handle to communicate with the client
- */
+ /**
+ * Handle to communicate with the client
+ */
struct GNUNET_SERVER_Client *handle;
- /**
- * Ports that this client has declared interest in.
- * Indexed by port, contains *Client.
- */
- struct GNUNET_CONTAINER_MultiHashMap32 *ports;
+ /**
+ * Ports that this client has declared interest in.
+ * Indexed by port, contains *Client.
+ */
+ struct GNUNET_CONTAINER_MultiHashMap *ports;
- /**
- * Whether the client is active or shutting down (don't send confirmations
- * to a client that is shutting down.
- */
+ /**
+ * Whether the client is active or shutting down (don't send confirmations
+ * to a client that is shutting down.
+ */
int shutting_down;
- /**
- * ID of the client, mainly for debug messages
- */
+ /**
+ * ID of the client, mainly for debug messages
+ */
unsigned int id;
};
/**
* All ports clients of this peer have opened.
*/
-static struct GNUNET_CONTAINER_MultiHashMap32 *ports;
+static struct GNUNET_CONTAINER_MultiHashMap *ports;
/**
* Notification context, to send messages to local clients.
* @param key Port.
* @param value Client structure.
*
- * @return GNUNET_OK, keep iterating.
+ * @return #GNUNET_OK, keep iterating.
*/
static int
client_release_ports (void *cls,
- uint32_t key,
+ const struct GNUNET_HashCode *key,
void *value)
{
int res;
- res = GNUNET_CONTAINER_multihashmap32_remove (ports, key, value);
+ res = GNUNET_CONTAINER_multihashmap_remove (ports, key, value);
if (GNUNET_YES != res)
{
GNUNET_break (0);
LOG (GNUNET_ERROR_TYPE_WARNING,
- "Port %u by client %p was not registered.\n",
- key, value);
+ "Port %s by client %p was not registered.\n",
+ GNUNET_h2s (key), value);
}
return GNUNET_OK;
}
* @param key The local channel id (used to access the hashmap).
* @param value The value stored at the key (channel to destroy).
*
- * @return GNUNET_OK, keep iterating.
+ * @return #GNUNET_OK, keep iterating.
*/
static int
channel_destroy_iterator (void *cls,
}
if (NULL != c->ports)
{
- GNUNET_CONTAINER_multihashmap32_iterate (c->ports,
- &client_release_ports, c);
- GNUNET_CONTAINER_multihashmap32_destroy (c->ports);
+ GNUNET_CONTAINER_multihashmap_iterate (c->ports,
+ &client_release_ports, c);
+ GNUNET_CONTAINER_multihashmap_destroy (c->ports);
}
GNUNET_CONTAINER_DLL_remove (clients_head, clients_tail, c);
GNUNET_free (c);
}
+
/**
* Create a client record, register data and initialize memory.
*
/**
- * Handler for new clients
+ * Handler for port open requests.
*
- * @param cls closure
- * @param client identification of the client
- * @param message the actual message, which includes messages the client wants
+ * @param cls Closure.
+ * @param client Identification of the client.
+ * @param message The actual message.
*/
static void
-handle_new_client (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
+handle_port_open (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
{
- struct GNUNET_CADET_ClientConnect *cc_msg;
struct CadetClient *c;
- unsigned int size;
- uint32_t *p;
- unsigned int i;
+ struct GNUNET_CADET_PortMessage *pmsg;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "new client registering %p\n", client);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "open port requested\n");
- /* Check data sanity */
- size = ntohs (message->size);
- if (size < sizeof (struct GNUNET_CADET_ClientConnect))
+ /* Sanity check for client registration */
+ if (NULL == (c = GML_client_get (client)))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- size -= sizeof (struct GNUNET_CADET_ClientConnect); /* Array size */
- if (0 != (size % sizeof (uint32_t)))
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
+
+ /* Message size sanity check */
+ if (sizeof (struct GNUNET_CADET_PortMessage) != ntohs (message->size))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- size /= sizeof (uint32_t); /* Number of ports */
- cc_msg = (struct GNUNET_CADET_ClientConnect *) message;
- /* Retrieve client structure */
- c = GNUNET_SERVER_client_get_user_context (client, struct CadetClient);
- if (NULL == c)
+ pmsg = (struct GNUNET_CADET_PortMessage *) message;
+ if (NULL == c->ports)
+ {
+ c->ports = GNUNET_CONTAINER_multihashmap_create (4, GNUNET_NO);
+ }
+ /* store in client's hashmap */
+ if (GNUNET_OK !=
+ GNUNET_CONTAINER_multihashmap_put (c->ports, &pmsg->port, c,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
+ /* store in global hashmap */
+ /* FIXME only allow one client to have the port open,
+ * have a backup hashmap with waiting clients */
+ GNUNET_CONTAINER_multihashmap_put (ports, &pmsg->port, c,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
- LOG (GNUNET_ERROR_TYPE_DEBUG, " client %u has %u ports\n", c-> id, size);
- if (size > 0)
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
+}
+
+
+/**
+ * Handler for port close requests.
+ *
+ * @param cls Closure.
+ * @param client Identification of the client.
+ * @param message The actual message.
+ */
+static void
+handle_port_close (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct CadetClient *c;
+ struct GNUNET_CADET_PortMessage *pmsg;
+ int removed;
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "close port requested\n");
+
+ /* Sanity check for client registration */
+ if (NULL == (c = GML_client_get (client)))
+ {
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
+ }
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
+
+ /* Message size sanity check */
+ if (sizeof (struct GNUNET_CADET_PortMessage) != ntohs (message->size))
{
- uint32_t u32;
-
- p = (uint32_t *) &cc_msg[1];
- c->ports = GNUNET_CONTAINER_multihashmap32_create (size);
- for (i = 0; i < size; i++)
- {
- u32 = ntohl (p[i]);
- LOG (GNUNET_ERROR_TYPE_DEBUG, " port: %u\n", u32);
-
- /* store in client's hashmap */
- GNUNET_CONTAINER_multihashmap32_put (c->ports, u32, c,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
- /* store in global hashmap */
- /* FIXME only allow one client to have the port open,
- * have a backup hashmap with waiting clients */
- GNUNET_CONTAINER_multihashmap32_put (ports, u32, c,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
- }
+ GNUNET_break (0);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ return;
}
+ pmsg = (struct GNUNET_CADET_PortMessage *) message;
+ removed = GNUNET_CONTAINER_multihashmap_remove (c->ports, &pmsg->port, c);
+ GNUNET_break_op (GNUNET_YES == removed);
+ removed = GNUNET_CONTAINER_multihashmap_remove (ports, &pmsg->port, c);
+ GNUNET_break_op (GNUNET_YES == removed);
+
GNUNET_SERVER_receive_done (client, GNUNET_OK);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "new regitering processed\n");
}
/**
- * Handler for requests of new tunnels
+ * Handler for requests of new channels.
*
* @param cls Closure.
* @param client Identification of the client.
LOG (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
/* Message size sanity check */
- if (sizeof (struct GNUNET_CADET_ChannelMessage) != ntohs (message->size))
+ if (sizeof (struct GNUNET_CADET_ChannelCreateMessage)
+ != ntohs (message->size))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
if (GNUNET_OK !=
GCCH_handle_local_create (c,
- (struct GNUNET_CADET_ChannelMessage *) message))
+ (struct GNUNET_CADET_ChannelCreateMessage *)
+ message))
{
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
}
handle_channel_destroy (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
- struct GNUNET_CADET_ChannelMessage *msg;
+ struct GNUNET_CADET_ChannelDestroyMessage *msg;
struct CadetClient *c;
struct CadetChannel *ch;
CADET_ChannelNumber chid;
LOG (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
/* Message sanity check */
- if (sizeof (struct GNUNET_CADET_ChannelMessage) != ntohs (message->size))
+ if (sizeof (struct GNUNET_CADET_ChannelDestroyMessage)
+ != ntohs (message->size))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- msg = (struct GNUNET_CADET_ChannelMessage *) message;
+ msg = (struct GNUNET_CADET_ChannelDestroyMessage *) message;
/* Retrieve tunnel */
chid = ntohl (msg->channel_id);
struct CadetPeer *p = value;
struct CadetTunnel *t;
- GCP_debug (p, GNUNET_ERROR_TYPE_ERROR);
-
t = GCP_get_tunnel (p);
if (NULL != t)
GCT_debug (t, GNUNET_ERROR_TYPE_ERROR);
c->id, c, c->handle);
if (NULL != c->ports)
LOG (GNUNET_ERROR_TYPE_ERROR, "\t%3u ports registered\n",
- GNUNET_CONTAINER_multihashmap32_size (c->ports));
+ GNUNET_CONTAINER_multihashmap_size (c->ports));
else
LOG (GNUNET_ERROR_TYPE_ERROR, "\t no ports registered\n");
LOG (GNUNET_ERROR_TYPE_ERROR, "\t%3u own channles\n",
* Functions to handle messages from clients
*/
static struct GNUNET_SERVER_MessageHandler client_handlers[] = {
- {&handle_new_client, NULL, GNUNET_MESSAGE_TYPE_CADET_LOCAL_CONNECT, 0},
+ {&handle_port_open, NULL, GNUNET_MESSAGE_TYPE_CADET_LOCAL_PORT_OPEN,
+ sizeof (struct GNUNET_CADET_PortMessage)},
+ {&handle_port_close, NULL, GNUNET_MESSAGE_TYPE_CADET_LOCAL_PORT_CLOSE,
+ sizeof (struct GNUNET_CADET_PortMessage)},
{&handle_channel_create, NULL, GNUNET_MESSAGE_TYPE_CADET_CHANNEL_CREATE,
- sizeof (struct GNUNET_CADET_ChannelMessage)},
+ sizeof (struct GNUNET_CADET_ChannelCreateMessage)},
{&handle_channel_destroy, NULL, GNUNET_MESSAGE_TYPE_CADET_CHANNEL_DESTROY,
- sizeof (struct GNUNET_CADET_ChannelMessage)},
+ sizeof (struct GNUNET_CADET_ChannelDestroyMessage)},
{&handle_data, NULL, GNUNET_MESSAGE_TYPE_CADET_LOCAL_DATA, 0},
{&handle_ack, NULL, GNUNET_MESSAGE_TYPE_CADET_LOCAL_ACK,
sizeof (struct GNUNET_CADET_LocalAck)},
LOG (GNUNET_ERROR_TYPE_DEBUG, "init\n");
server_handle = handle;
GNUNET_SERVER_suspend (server_handle);
- ports = GNUNET_CONTAINER_multihashmap32_create (32);
+ ports = GNUNET_CONTAINER_multihashmap_create (16, GNUNET_NO);
}
* @return non-NULL if a client has the port.
*/
struct CadetClient *
-GML_client_get_by_port (uint32_t port)
+GML_client_get_by_port (const struct GNUNET_HashCode *port)
{
- return GNUNET_CONTAINER_multihashmap32_get (ports, port);
+ return GNUNET_CONTAINER_multihashmap_get (ports, port);
}
*/
void
GML_send_channel_create (struct CadetClient *c,
- uint32_t id, uint32_t port, uint32_t opt,
- const struct GNUNET_PeerIdentity *peer)
+ uint32_t id, struct GNUNET_HashCode *port,
+ uint32_t opt, const struct GNUNET_PeerIdentity *peer)
{
- struct GNUNET_CADET_ChannelMessage msg;
+ struct GNUNET_CADET_ChannelCreateMessage msg;
msg.header.size = htons (sizeof (msg));
msg.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_CHANNEL_CREATE);
msg.channel_id = htonl (id);
- msg.port = htonl (port);
+ msg.port = *port;
msg.opt = htonl (opt);
msg.peer = *peer;
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
void
GML_send_channel_destroy (struct CadetClient *c, uint32_t id)
{
- struct GNUNET_CADET_ChannelMessage msg;
+ struct GNUNET_CADET_ChannelDestroyMessage msg;
if (NULL == c)
{
msg.header.size = htons (sizeof (msg));
msg.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_CHANNEL_DESTROY);
msg.channel_id = htonl (id);
- msg.port = htonl (0);
- memset (&msg.peer, 0, sizeof (msg.peer));
- msg.opt = htonl (0);
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
&msg.header, GNUNET_NO);
}
return;
}
copy = (struct GNUNET_CADET_LocalData *) cbuf;
- memcpy (©[1], &msg[1], size);
+ GNUNET_memcpy (©[1], &msg[1], size);
copy->header.size = htons (sizeof (struct GNUNET_CADET_LocalData) + size);
copy->header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_DATA);
copy->id = htonl (id);
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