/*
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.
- */
- CADET_ChannelNumber next_chid;
+ /**
+ * Channel ID for the next incoming channel.
+ */
+ struct GNUNET_CADET_ClientChannelNumber next_ccn;
- /**
- * 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;
}
+/**
+ * Iterator for deleting each channel whose client endpoint disconnected.
+ *
+ * @param cls Closure (client that has disconnected).
+ * @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.
+ */
+static int
+channel_destroy_iterator (void *cls,
+ uint32_t key,
+ void *value)
+{
+ struct CadetChannel *ch = value;
+ struct CadetClient *c = cls;
-/******************************************************************************/
-/******************************** HANDLES ***********************************/
-/******************************************************************************/
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ " Channel %s destroy, due to client %s shutdown.\n",
+ GCCH_2s (ch), GML_2s (c));
+
+ GCCH_handle_local_destroy (ch,
+ c,
+ key < GNUNET_CADET_LOCAL_CHANNEL_ID_CLI);
+ return GNUNET_OK;
+}
/**
- * Handler for client connection.
+ * Unregister data and free memory for a client.
*
- * @param cls Closure (unused).
- * @param client Client handler.
+ * @param c Client to destroy. No longer valid after call.
*/
static void
-handle_client_connect (void *cls, struct GNUNET_SERVER_Client *client)
+client_destroy (struct CadetClient *c)
+{
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " client destroy: %p/%u\n", c, c->id);
+ GNUNET_SERVER_client_drop (c->handle);
+ c->shutting_down = GNUNET_YES;
+
+ if (NULL != c->own_channels)
+ {
+ GNUNET_CONTAINER_multihashmap32_iterate (c->own_channels,
+ &channel_destroy_iterator, c);
+ GNUNET_CONTAINER_multihashmap32_destroy (c->own_channels);
+ }
+ if (NULL != c->incoming_channels)
+ {
+ GNUNET_CONTAINER_multihashmap32_iterate (c->incoming_channels,
+ &channel_destroy_iterator, c);
+ GNUNET_CONTAINER_multihashmap32_destroy (c->incoming_channels);
+ }
+ if (NULL != 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_STATISTICS_update (stats, "# clients", -1, GNUNET_NO);
+ GNUNET_SERVER_client_set_user_context (c->handle, NULL);
+ GNUNET_free (c);
+}
+
+
+/**
+ * Create a client record, register data and initialize memory.
+ *
+ * @param client Client's handle.
+ */
+static struct CadetClient *
+client_new (struct GNUNET_SERVER_Client *client)
{
struct CadetClient *c;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "client connected: %p\n", client);
- if (NULL == client)
- return;
+ GNUNET_SERVER_client_keep (client);
+ GNUNET_SERVER_notification_context_add (nc, client);
+
c = GNUNET_new (struct CadetClient);
c->handle = client;
c->id = next_client_id++; /* overflow not important: just for debug */
- c->next_chid = GNUNET_CADET_LOCAL_CHANNEL_ID_SERV;
- GNUNET_SERVER_client_keep (client);
+
+ c->own_channels = GNUNET_CONTAINER_multihashmap32_create (32);
+ c->incoming_channels = GNUNET_CONTAINER_multihashmap32_create (32);
+
GNUNET_SERVER_client_set_user_context (client, c);
GNUNET_CONTAINER_DLL_insert (clients_head, clients_tail, c);
+ GNUNET_STATISTICS_update (stats, "# clients", +1, GNUNET_NO);
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " client created: %p/%u\n", c, c->id);
+
+ return c;
}
+/******************************************************************************/
+/******************************** HANDLES ***********************************/
+/******************************************************************************/
+
/**
- * Iterator for deleting each channel whose client endpoint disconnected.
- *
- * @param cls Closure (client that has disconnected).
- * @param key The local channel id (used to access the hashmap).
- * @param value The value stored at the key (channel to destroy).
+ * Handler for client connection.
*
- * @return GNUNET_OK, keep iterating.
+ * @param cls Closure (unused).
+ * @param client Client handler.
*/
-static int
-channel_destroy_iterator (void *cls,
- uint32_t key,
- void *value)
+static void
+handle_client_connect (void *cls, struct GNUNET_SERVER_Client *client)
{
- struct CadetChannel *ch = value;
- struct CadetClient *c = cls;
-
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- " Channel %s destroy, due to client %s shutdown.\n",
- GCCH_2s (ch), GML_2s (c));
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Client connected: %p\n", client);
+ if (NULL == client)
+ return;
- GCCH_handle_local_destroy (ch, c, key < GNUNET_CADET_LOCAL_CHANNEL_ID_SERV);
- return GNUNET_OK;
+ (void) client_new (client);
}
{
struct CadetClient *c;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "client disconnected: %p\n", client);
- if (client == NULL)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG, " (SERVER DOWN)\n");
- return;
- }
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Client disconnected: %p\n", client);
c = GML_client_get (client);
if (NULL != c)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "matching client found (%u, %p)\n",
c->id, c);
- GNUNET_SERVER_client_drop (c->handle);
- c->shutting_down = GNUNET_YES;
- if (NULL != c->own_channels)
- {
- GNUNET_CONTAINER_multihashmap32_iterate (c->own_channels,
- &channel_destroy_iterator, c);
- GNUNET_CONTAINER_multihashmap32_destroy (c->own_channels);
- }
-
- if (NULL != c->incoming_channels)
- {
- GNUNET_CONTAINER_multihashmap32_iterate (c->incoming_channels,
- &channel_destroy_iterator, c);
- GNUNET_CONTAINER_multihashmap32_destroy (c->incoming_channels);
- }
-
- if (NULL != c->ports)
- {
- GNUNET_CONTAINER_multihashmap32_iterate (c->ports,
- &client_release_ports, c);
- GNUNET_CONTAINER_multihashmap32_destroy (c->ports);
- }
- GNUNET_CONTAINER_DLL_remove (clients_head, clients_tail, c);
- GNUNET_STATISTICS_update (stats, "# clients", -1, GNUNET_NO);
- LOG (GNUNET_ERROR_TYPE_DEBUG, " client free (%p)\n", c);
- GNUNET_free (c);
+ client_destroy (c);
}
else
{
- LOG (GNUNET_ERROR_TYPE_WARNING, " context NULL!\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " disconnecting client's context NULL\n");
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, "done!\n");
return;
}
/**
- * 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, "\n");
- LOG (GNUNET_ERROR_TYPE_DEBUG, "new client connected %p\n", client);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "open port requested\n");
- /* Check data sanity */
- size = ntohs (message->size) - sizeof (struct GNUNET_CADET_ClientConnect);
- cc_msg = (struct GNUNET_CADET_ClientConnect *) message;
- if (0 != (size % sizeof (uint32_t)))
+ /* 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 (uint32_t);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " by client %u\n", c->id);
- /* Initialize new client structure */
- c = GNUNET_SERVER_client_get_user_context (client, struct CadetClient);
- if (NULL == c)
+ /* Message size sanity check */
+ if (sizeof (struct GNUNET_CADET_PortMessage) != ntohs (message->size))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- LOG (GNUNET_ERROR_TYPE_DEBUG, " client id %u\n", c->id);
- LOG (GNUNET_ERROR_TYPE_DEBUG, " client has %u ports\n", size);
- if (size > 0)
+ 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))
{
- 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;
}
+ /* 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);
- c->own_channels = GNUNET_CONTAINER_multihashmap32_create (32);
- c->incoming_channels = GNUNET_CONTAINER_multihashmap32_create (32);
- GNUNET_SERVER_notification_context_add (nc, client);
- GNUNET_STATISTICS_update (stats, "# clients", 1, GNUNET_NO);
+ 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))
+ {
+ 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 client 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_LocalChannelCreateMessage)
+ != 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_LocalChannelCreateMessage *)
+ 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;
+ const struct GNUNET_CADET_LocalChannelDestroyMessage *msg;
struct CadetClient *c;
struct CadetChannel *ch;
- CADET_ChannelNumber chid;
+ struct GNUNET_CADET_ClientChannelNumber ccn;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Got a DESTROY CHANNEL from client!\n");
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_LocalChannelDestroyMessage)
+ != ntohs (message->size))
{
GNUNET_break (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
return;
}
- msg = (struct GNUNET_CADET_ChannelMessage *) message;
+ msg = (const struct GNUNET_CADET_LocalChannelDestroyMessage *) message;
/* Retrieve tunnel */
- chid = ntohl (msg->channel_id);
- LOG (GNUNET_ERROR_TYPE_DEBUG, " for channel %X\n", chid);
- ch = GML_channel_get (c, chid);
+ ccn = msg->ccn;
+ ch = GML_channel_get (c, ccn);
+
+ LOG (GNUNET_ERROR_TYPE_INFO, "Client %u is destroying channel %X\n",
+ c->id, ccn);
+
if (NULL == ch)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, " channel %X not found\n", chid);
+ LOG (GNUNET_ERROR_TYPE_WARNING, " channel %X not found\n", ccn);
GNUNET_STATISTICS_update (stats,
"# client destroy messages on unknown channel",
1, GNUNET_NO);
return;
}
- GCCH_handle_local_destroy (ch, c, chid < GNUNET_CADET_LOCAL_CHANNEL_ID_SERV);
+ GCCH_handle_local_destroy (ch,
+ c,
+ ntohl (ccn.channel_of_client) < GNUNET_CADET_LOCAL_CHANNEL_ID_CLI);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
}
struct GNUNET_CADET_LocalData *msg;
struct CadetClient *c;
struct CadetChannel *ch;
- CADET_ChannelNumber chid;
+ struct GNUNET_CADET_ClientChannelNumber ccn;
size_t message_size;
size_t payload_size;
size_t payload_claimed_size;
return;
}
- chid = ntohl (msg->id);
+ ccn = msg->ccn;
LOG (GNUNET_ERROR_TYPE_DEBUG, " %u bytes (%u payload) by client %u\n",
payload_size, payload_claimed_size, c->id);
/* Channel exists? */
- fwd = chid < GNUNET_CADET_LOCAL_CHANNEL_ID_SERV;
- ch = GML_channel_get (c, chid);
+ fwd = ntohl (ccn.channel_of_client) >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI;
+ ch = GML_channel_get (c, ccn);
if (NULL == ch)
{
GNUNET_STATISTICS_update (stats,
struct GNUNET_CADET_LocalAck *msg;
struct CadetChannel *ch;
struct CadetClient *c;
- CADET_ChannelNumber chid;
+ struct GNUNET_CADET_ClientChannelNumber ccn;
int fwd;
LOG (GNUNET_ERROR_TYPE_DEBUG, "\n");
msg = (struct GNUNET_CADET_LocalAck *) message;
/* Channel exists? */
- chid = ntohl (msg->channel_id);
- LOG (GNUNET_ERROR_TYPE_DEBUG, " on channel %X\n", chid);
- ch = GML_channel_get (c, chid);
+ ccn = msg->ccn;
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " on channel %X\n",
+ ntohl (ccn.channel_of_client));
+ ch = GML_channel_get (c, ccn);
LOG (GNUNET_ERROR_TYPE_DEBUG, " -- ch %p\n", ch);
if (NULL == ch)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Channel %X unknown.\n", chid);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Channel %X unknown.\n",
+ ntohl (ccn.channel_of_client));
LOG (GNUNET_ERROR_TYPE_DEBUG, " for client %u.\n", c->id);
GNUNET_STATISTICS_update (stats,
"# client ack messages on unknown channel",
/* If client is root, the ACK is going FWD, therefore this is "BCK ACK". */
/* If client is dest, the ACK is going BCK, therefore this is "FWD ACK" */
- fwd = chid >= GNUNET_CADET_LOCAL_CHANNEL_ID_SERV;
+ fwd = ntohl (ccn.channel_of_client) < GNUNET_CADET_LOCAL_CHANNEL_ID_CLI;
GCCH_handle_local_ack (ch, fwd);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
-
- return;
}
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);
}
+/**
+ * Iterator over all paths of a peer to build an InfoPeer message.
+ *
+ * Message contains blocks of peers, first not included.
+ *
+ * @param cls Closure (message to build).
+ * @param peer Peer this path is towards.
+ * @param path Path itself
+ * @return #GNUNET_YES if should keep iterating.
+ * #GNUNET_NO otherwise.
+ */
+static int
+path_info_iterator (void *cls,
+ struct CadetPeer *peer,
+ struct CadetPeerPath *path)
+{
+ struct GNUNET_CADET_LocalInfoPeer *resp = cls;
+ struct GNUNET_PeerIdentity *id;
+ uint16_t msg_size;
+ uint16_t path_size;
+ unsigned int i;
+
+ msg_size = ntohs (resp->header.size);
+ path_size = sizeof (struct GNUNET_PeerIdentity) * (path->length - 1);
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Info Path %u\n", path->length);
+ if (msg_size + path_size > UINT16_MAX)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING, "path too long for info message\n");
+ return GNUNET_NO;
+ }
+
+ i = msg_size - sizeof (struct GNUNET_CADET_LocalInfoPeer);
+ i = i / sizeof (struct GNUNET_PeerIdentity);
+
+ /* Set id to the address of the first free peer slot. */
+ id = (struct GNUNET_PeerIdentity *) &resp[1];
+ id = &id[i];
+
+ /* Don't copy first peers.
+ * First peer is always the local one.
+ * Last peer is always the destination (leave as 0, EOL).
+ */
+ for (i = 0; i < path->length - 1; i++)
+ {
+ GNUNET_PEER_resolve (path->peers[i + 1], &id[i]);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, " %s\n", GNUNET_i2s (&id[i]));
+ }
+
+ resp->header.size = htons (msg_size + path_size);
+
+ return GNUNET_YES;
+}
+
+
/**
* Handler for client's INFO PEERS request.
*
struct GNUNET_CADET_LocalInfoPeer *resp;
struct CadetPeer *p;
struct CadetClient *c;
- size_t size;
+ unsigned char cbuf[64 * 1024];
/* Sanity check for client registration */
if (NULL == (c = GML_client_get (client)))
}
msg = (struct GNUNET_CADET_LocalInfo *) message;
+ resp = (struct GNUNET_CADET_LocalInfoPeer *) cbuf;
LOG (GNUNET_ERROR_TYPE_INFO,
"Received peer info request from client %u for peer %s\n",
c->id, GNUNET_i2s_full (&msg->peer));
- p = GCP_get (&msg->peer);
+ resp->header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEER);
+ resp->header.size = htons (sizeof (struct GNUNET_CADET_LocalInfoPeer));
+ resp->destination = msg->peer;
+ p = GCP_get (&msg->peer, GNUNET_NO);
if (NULL == p)
{
/* We don't know the peer */
- struct GNUNET_CADET_LocalInfoPeer warn;
- LOG (GNUNET_ERROR_TYPE_INFO, "Peer %s unknown %u\n",
- GNUNET_i2s_full (&msg->peer), sizeof (warn));
- warn.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEER);
- warn.header.size = htons (sizeof (warn));
- warn.destination = msg->peer;
- warn.paths = htons (0);
- warn.tunnel = htons (NULL != GCP_get_tunnel (p));
+ LOG (GNUNET_ERROR_TYPE_INFO, "Peer %s unknown\n",
+ GNUNET_i2s_full (&msg->peer));
+ resp->paths = htons (0);
+ resp->tunnel = htons (NULL != GCP_get_tunnel (p));
GNUNET_SERVER_notification_context_unicast (nc, client,
- &warn.header,
+ &resp->header,
GNUNET_NO);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
}
- size = sizeof (struct GNUNET_CADET_LocalInfoPeer);
-// size += c_n * sizeof (struct GNUNET_CADET_Hash);
-
- resp = GNUNET_malloc (size);
- resp->header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_PEER);
- resp->header.size = htons (size);
- resp->destination = msg->peer;
- resp->paths = htons (0);
- resp->tunnel = htons (0);
+ resp->paths = htons (GCP_count_paths (p));
+ resp->tunnel = htons (NULL != GCP_get_tunnel (p));
+ GCP_iterate_paths (p, &path_info_iterator, resp);
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
&resp->header, GNUNET_NO);
- GNUNET_free (resp);
- LOG (GNUNET_ERROR_TYPE_INFO, "Show peer request from client %u completed.\n");
+ LOG (GNUNET_ERROR_TYPE_INFO, "Show peer from client %u completed.\n", c->id);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
iter_connection (void *cls, struct CadetConnection *c)
{
struct GNUNET_CADET_LocalInfoTunnel *msg = cls;
- struct GNUNET_CADET_Hash *h = (struct GNUNET_CADET_Hash *) &msg[1];
+ struct GNUNET_CADET_ConnectionTunnelIdentifier *h;
+ h = (struct GNUNET_CADET_ConnectionTunnelIdentifier *) &msg[1];
h[msg->connections] = *(GCC_get_id (c));
msg->connections++;
}
iter_channel (void *cls, struct CadetChannel *ch)
{
struct GNUNET_CADET_LocalInfoTunnel *msg = cls;
- struct GNUNET_HashCode *h = (struct GNUNET_HashCode *) &msg[1];
- CADET_ChannelNumber *chn = (CADET_ChannelNumber *) &h[msg->connections];
+ struct GNUNET_CADET_ConnectionTunnelIdentifier *h = (struct GNUNET_CADET_ConnectionTunnelIdentifier *) &msg[1];
+ struct GNUNET_CADET_ChannelTunnelNumber *chn = (struct GNUNET_CADET_ChannelTunnelNumber *) &h[msg->connections];
chn[msg->channels] = GCCH_get_id (ch);
msg->channels++;
}
msg = (struct GNUNET_CADET_LocalInfo *) message;
- LOG (GNUNET_ERROR_TYPE_INFO,
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received tunnel info request from client %u for tunnel %s\n",
c->id, GNUNET_i2s_full(&msg->peer));
- t = GCP_get_tunnel (GCP_get (&msg->peer));
+ t = GCP_get_tunnel (GCP_get (&msg->peer, GNUNET_NO));
if (NULL == t)
{
/* We don't know the tunnel */
c_n = GCT_count_any_connections (t);
size = sizeof (struct GNUNET_CADET_LocalInfoTunnel);
- size += c_n * sizeof (struct GNUNET_CADET_Hash);
- size += ch_n * sizeof (CADET_ChannelNumber);
+ size += c_n * sizeof (struct GNUNET_CADET_ConnectionTunnelIdentifier);
+ size += ch_n * sizeof (struct GNUNET_CADET_ChannelTunnelNumber);
resp = GNUNET_malloc (size);
resp->header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_INFO_TUNNEL);
resp->header.size = htons (size);
+ resp->destination = msg->peer;
+ /* Do not interleave with iterators, iter_channel needs conn in HBO */
GCT_iterate_connections (t, &iter_connection, resp);
GCT_iterate_channels (t, &iter_channel, resp);
- /* Do not interleave with iterators, iter_channel needs conn in HBO */
- resp->destination = msg->peer;
resp->connections = htonl (resp->connections);
resp->channels = htonl (resp->channels);
+ /* Do not interleave end */
resp->cstate = htons (GCT_get_cstate (t));
resp->estate = htons (GCT_get_estate (t));
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
&resp->header, GNUNET_NO);
GNUNET_free (resp);
- LOG (GNUNET_ERROR_TYPE_INFO,
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
"Show tunnel request from client %u completed. %u conn, %u ch\n",
c->id, c_n, ch_n);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
LOG (GNUNET_ERROR_TYPE_INFO, "Received dump info request from client %u\n",
c->id);
-
LOG (GNUNET_ERROR_TYPE_ERROR,
"*************************** DUMP START ***************************\n");
+ for (c = clients_head; NULL != c; c = c->next)
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR, "Client %u (%p), handle: %p\n",
+ c->id, c, c->handle);
+ if (NULL != c->ports)
+ LOG (GNUNET_ERROR_TYPE_ERROR, "\t%3u ports registered\n",
+ 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",
+ GNUNET_CONTAINER_multihashmap32_size (c->own_channels));
+ LOG (GNUNET_ERROR_TYPE_ERROR, "\t%3u incoming channles\n",
+ GNUNET_CONTAINER_multihashmap32_size (c->incoming_channels));
+ }
+ LOG (GNUNET_ERROR_TYPE_ERROR, "***************************\n");
GCP_iterate_all (&show_peer_iterator, NULL);
LOG (GNUNET_ERROR_TYPE_ERROR,
* 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_channel_create, NULL, GNUNET_MESSAGE_TYPE_CADET_CHANNEL_CREATE,
- sizeof (struct GNUNET_CADET_ChannelMessage)},
- {&handle_channel_destroy, NULL, GNUNET_MESSAGE_TYPE_CADET_CHANNEL_DESTROY,
- sizeof (struct GNUNET_CADET_ChannelMessage)},
+ {&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_LOCAL_CHANNEL_CREATE,
+ sizeof (struct GNUNET_CADET_LocalChannelCreateMessage)},
+ {&handle_channel_destroy, NULL, GNUNET_MESSAGE_TYPE_CADET_LOCAL_CHANNEL_DESTROY,
+ sizeof (struct GNUNET_CADET_LocalChannelDestroyMessage)},
{&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);
}
void
GML_shutdown (void)
{
+ struct CadetClient *c;
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down local\n");
+
+ for (c = clients_head; NULL != clients_head; c = clients_head)
+ client_destroy (c);
+
if (nc != NULL)
{
GNUNET_SERVER_notification_context_destroy (nc);
nc = NULL;
}
+
}
* Get a channel from a client.
*
* @param c Client to check.
- * @param chid Channel ID, must be local (> 0x800...).
+ * @param ccn Channel ID, must be local (> 0x800...).
*
* @return non-NULL if channel exists in the clients lists
*/
struct CadetChannel *
-GML_channel_get (struct CadetClient *c, CADET_ChannelNumber chid)
+GML_channel_get (struct CadetClient *c,
+ struct GNUNET_CADET_ClientChannelNumber ccn)
{
struct GNUNET_CONTAINER_MultiHashMap32 *map;
- if (0 == (chid & GNUNET_CADET_LOCAL_CHANNEL_ID_CLI))
- {
- GNUNET_break_op (0);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "CHID %X not a local chid\n", chid);
- return NULL;
- }
-
- if (chid >= GNUNET_CADET_LOCAL_CHANNEL_ID_SERV)
- map = c->incoming_channels;
- else if (chid >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
+ if (ntohl (ccn.channel_of_client) >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
map = c->own_channels;
else
- {
- GNUNET_break (0);
- map = NULL;
- }
+ map = c->incoming_channels;
+
if (NULL == map)
{
GNUNET_break (0);
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Client %s does no t have a valid map for CHID %X\n",
- GML_2s (c), chid);
+ "Client %s does no t have a valid map for CCN %X\n",
+ GML_2s (c), ccn);
return NULL;
}
- return GNUNET_CONTAINER_multihashmap32_get (map, chid);
+ return GNUNET_CONTAINER_multihashmap32_get (map,
+ ccn.channel_of_client);
}
* Add a channel to a client
*
* @param client Client.
- * @param chid Channel ID.
+ * @param ccn Channel ID.
* @param ch Channel.
*/
void
GML_channel_add (struct CadetClient *client,
- uint32_t chid,
+ struct GNUNET_CADET_ClientChannelNumber ccn,
struct CadetChannel *ch)
{
- if (chid >= GNUNET_CADET_LOCAL_CHANNEL_ID_SERV)
- GNUNET_CONTAINER_multihashmap32_put (client->incoming_channels, chid, ch,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- else if (chid >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
- GNUNET_CONTAINER_multihashmap32_put (client->own_channels, chid, ch,
+ if (ntohl (ccn.channel_of_client) >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
+ GNUNET_CONTAINER_multihashmap32_put (client->own_channels,
+ ccn.channel_of_client,
+ ch,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
else
- GNUNET_break (0);
+ GNUNET_CONTAINER_multihashmap32_put (client->incoming_channels,
+ ccn.channel_of_client,
+ ch,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
}
* Remove a channel from a client.
*
* @param client Client.
- * @param chid Channel ID.
+ * @param ccn Channel ID.
* @param ch Channel.
*/
void
GML_channel_remove (struct CadetClient *client,
- uint32_t chid,
+ struct GNUNET_CADET_ClientChannelNumber ccn,
struct CadetChannel *ch)
{
- if (GNUNET_CADET_LOCAL_CHANNEL_ID_SERV <= chid)
- GNUNET_break (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap32_remove (client->incoming_channels,
- chid, ch));
- else if (GNUNET_CADET_LOCAL_CHANNEL_ID_CLI <= chid)
- GNUNET_break (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap32_remove (client->own_channels,
- chid, ch));
+ if (ntohl (ccn.channel_of_client) >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
+ GNUNET_CONTAINER_multihashmap32_remove (client->own_channels,
+ ccn.channel_of_client,
+ ch);
else
- GNUNET_break (0);
+ GNUNET_CONTAINER_multihashmap32_remove (client->incoming_channels,
+ ccn.channel_of_client,
+ ch);
}
*
* @return LID of a channel free to use.
*/
-CADET_ChannelNumber
-GML_get_next_chid (struct CadetClient *c)
+struct GNUNET_CADET_ClientChannelNumber
+GML_get_next_ccn (struct CadetClient *c)
{
- CADET_ChannelNumber chid;
+ struct GNUNET_CADET_ClientChannelNumber ccn;
- while (NULL != GML_channel_get (c, c->next_chid))
+ while (NULL != GML_channel_get (c,
+ c->next_ccn))
{
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Channel %u exists...\n", c->next_chid);
- c->next_chid = (c->next_chid + 1) | GNUNET_CADET_LOCAL_CHANNEL_ID_SERV;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Channel %u exists...\n",
+ c->next_ccn);
+ c->next_ccn.channel_of_client
+ = htonl (1 + (ntohl (c->next_ccn.channel_of_client)));
+ if (ntohl (c->next_ccn.channel_of_client) >=
+ GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
+ c->next_ccn.channel_of_client = htonl (0);
}
- chid = c->next_chid;
- c->next_chid = (c->next_chid + 1) | GNUNET_CADET_LOCAL_CHANNEL_ID_SERV;
+ ccn = c->next_ccn;
+ c->next_ccn.channel_of_client
+ = htonl (1 + (ntohl (c->next_ccn.channel_of_client)));
- return chid;
+ return ccn;
}
struct CadetClient *
GML_client_get (struct GNUNET_SERVER_Client *client)
{
- return GNUNET_SERVER_client_get_user_context (client, struct CadetClient);
+ if (NULL == client)
+ return NULL;
+ return GNUNET_SERVER_client_get_user_context (client,
+ struct CadetClient);
}
+
/**
* Find a client that has opened a port
*
* @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_client_delete_channel (struct CadetClient *c,
struct CadetChannel *ch,
- CADET_ChannelNumber id)
+ struct GNUNET_CADET_ClientChannelNumber id)
{
int res;
- if (GNUNET_CADET_LOCAL_CHANNEL_ID_SERV <= id)
- {
- res = GNUNET_CONTAINER_multihashmap32_remove (c->incoming_channels,
- id, ch);
- if (GNUNET_YES != res)
- LOG (GNUNET_ERROR_TYPE_DEBUG, "client_delete_channel dest KO\n");
- }
- else if (GNUNET_CADET_LOCAL_CHANNEL_ID_CLI <= id)
+ if (ntohl (id.channel_of_client) >= GNUNET_CADET_LOCAL_CHANNEL_ID_CLI)
{
res = GNUNET_CONTAINER_multihashmap32_remove (c->own_channels,
- id, ch);
+ id.channel_of_client,
+ ch);
if (GNUNET_YES != res)
LOG (GNUNET_ERROR_TYPE_DEBUG, "client_delete_tunnel root KO\n");
}
else
{
- GNUNET_break (0);
+ res = GNUNET_CONTAINER_multihashmap32_remove (c->incoming_channels,
+ id.channel_of_client,
+ ch);
+ if (GNUNET_YES != res)
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "client_delete_channel dest KO\n");
}
}
* If the client was already allowed to send data, do nothing.
*
* @param c Client to whom send the ACK.
- * @param id Channel ID to use
+ * @param ccn Channel ID to use
*/
void
-GML_send_ack (struct CadetClient *c, CADET_ChannelNumber id)
+GML_send_ack (struct CadetClient *c,
+ struct GNUNET_CADET_ClientChannelNumber ccn)
{
struct GNUNET_CADET_LocalAck msg;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "send local %s ack on %X towards %p\n",
- id < GNUNET_CADET_LOCAL_CHANNEL_ID_SERV ? "FWD" : "BCK", id, c);
+ "send local %s ack on %X towards %p\n",
+ ntohl (ccn.channel_of_client) < GNUNET_CADET_LOCAL_CHANNEL_ID_CLI
+ ? "FWD" : "BCK",
+ ntohl (ccn.channel_of_client),
+ c);
msg.header.size = htons (sizeof (msg));
msg.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_ACK);
- msg.channel_id = htonl (id);
+ msg.ccn = ccn;
GNUNET_SERVER_notification_context_unicast (nc,
c->handle,
&msg.header,
* Notify the client that a new incoming channel was created.
*
* @param c Client to notify.
- * @param id Channel ID.
+ * @param ccn Channel ID.
* @param port Channel's destination port.
* @param opt Options (bit array).
* @param peer Origin peer.
*/
void
GML_send_channel_create (struct CadetClient *c,
- uint32_t id, uint32_t port, uint32_t opt,
+ struct GNUNET_CADET_ClientChannelNumber ccn,
+ const struct GNUNET_HashCode *port,
+ uint32_t opt,
const struct GNUNET_PeerIdentity *peer)
{
- struct GNUNET_CADET_ChannelMessage msg;
+ struct GNUNET_CADET_LocalChannelCreateMessage 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.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_CHANNEL_CREATE);
+ msg.ccn = ccn;
+ msg.port = *port;
msg.opt = htonl (opt);
msg.peer = *peer;
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
* Build a local channel NACK message and send it to a local client.
*
* @param c Client to whom send the NACK.
- * @param id Channel ID to use
+ * @param ccn Channel ID to use
*/
void
-GML_send_channel_nack (struct CadetClient *c, CADET_ChannelNumber id)
+GML_send_channel_nack (struct CadetClient *c,
+ struct GNUNET_CADET_ClientChannelNumber ccn)
{
struct GNUNET_CADET_LocalAck msg;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"send local nack on %X towards %p\n",
- id, c);
+ ntohl (ccn.channel_of_client),
+ c);
msg.header.size = htons (sizeof (msg));
- msg.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_CHANNEL_NACK);
- msg.channel_id = htonl (id);
+ msg.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_CHANNEL_OPEN_NACK_DEPRECATED);
+ msg.ccn = ccn;
GNUNET_SERVER_notification_context_unicast (nc,
c->handle,
&msg.header,
* Notify a client that a channel is no longer valid.
*
* @param c Client.
- * @param id ID of the channel that is destroyed.
+ * @param ccn ID of the channel that is destroyed.
*/
void
-GML_send_channel_destroy (struct CadetClient *c, uint32_t id)
+GML_send_channel_destroy (struct CadetClient *c,
+ struct GNUNET_CADET_ClientChannelNumber ccn)
{
- struct GNUNET_CADET_ChannelMessage msg;
+ struct GNUNET_CADET_LocalChannelDestroyMessage msg;
if (NULL == c)
{
if (GNUNET_YES == c->shutting_down)
return;
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);
+ msg.header.type = htons (GNUNET_MESSAGE_TYPE_CADET_LOCAL_CHANNEL_DESTROY);
+ msg.ccn = ccn;
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
&msg.header, GNUNET_NO);
}
*
* @param c Client to send to.
* @param msg Message to modify and send.
- * @param id Channel ID to use (c can be both owner and client).
+ * @param ccn Channel ID to use (c can be both owner and client).
*/
void
GML_send_data (struct CadetClient *c,
- const struct GNUNET_CADET_Data *msg,
- CADET_ChannelNumber id)
+ const struct GNUNET_CADET_ChannelAppDataMessage *msg,
+ struct GNUNET_CADET_ClientChannelNumber ccn)
{
struct GNUNET_CADET_LocalData *copy;
- uint16_t size = ntohs (msg->header.size) - sizeof (struct GNUNET_CADET_Data);
+ uint16_t size = ntohs (msg->header.size) - sizeof (struct GNUNET_CADET_ChannelAppDataMessage);
char cbuf[size + sizeof (struct GNUNET_CADET_LocalData)];
if (size < sizeof (struct GNUNET_MessageHeader))
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);
+ copy->ccn = ccn;
GNUNET_SERVER_notification_context_unicast (nc, c->handle,
©->header, GNUNET_NO);
}