/*
This file is part of GNUnet
- (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Christian Grothoff (and other contributing authors)
+ (C) 2002--2013 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
#include "gnunet_transport_plugin.h"
#include "transport.h"
-#define DEBUG_TCP GNUNET_EXTRA_LOGGING
-
-#define DEBUG_TCP_NAT GNUNET_EXTRA_LOGGING
+#define LOG(kind,...) GNUNET_log_from (kind, "transport-tcp",__VA_ARGS__)
+#define PLUGIN_NAME "tcp"
/**
* How long until we give up on establishing an NAT connection?
GNUNET_NETWORK_STRUCT_BEGIN
+/**
+ * Address options
+ */
+static uint32_t myoptions;
+
/**
* Initial handshake message for a session.
*/
*/
struct IPv4TcpAddress
{
+ /**
+ * Optional options and flags for this address
+ */
+ uint32_t options;
+
/**
* IPv4 address, in network byte order.
*/
*/
struct IPv6TcpAddress
{
+ /**
+ * Optional flags for this address
+ */
+ uint32_t options;
+
/**
* IPv6 address.
*/
*/
struct Session
{
-
/**
- * API requirement.
+ * To whom are we talking to (set to our identity
+ * if we are still waiting for the welcome message)
*/
- struct SessionHeader header;
+ struct GNUNET_PeerIdentity target;
/**
- * Stored in a linked list.
+ * API requirement.
*/
- struct Session *next;
+ struct SessionHeader header;
/**
* Pointer to the global plugin struct.
/**
* Handle for pending transmission request.
*/
- struct GNUNET_CONNECTION_TransmitHandle *transmit_handle;
+ struct GNUNET_SERVER_TransmitHandle *transmit_handle;
/**
- * To whom are we talking to (set to our identity
- * if we are still waiting for the welcome message)
+ * ID of task used to delay receiving more to throttle sender.
*/
- struct GNUNET_PeerIdentity target;
+ GNUNET_SCHEDULER_TaskIdentifier receive_delay_task;
/**
- * ID of task used to delay receiving more to throttle sender.
+ * Session timeout task
*/
- GNUNET_SCHEDULER_TaskIdentifier receive_delay_task;
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
/**
* Address of the other peer (either based on our 'connect'
*/
struct GNUNET_NAT_Handle *nat;
- struct GNUNET_CONTAINER_MultiHashMap * sessionmap;
+ /**
+ * Map from peer identities to sessions for the given peer.
+ */
+ struct GNUNET_CONTAINER_MultiPeerMap *sessionmap;
/**
* Handle to the network service.
/**
* Map of peers we have tried to contact behind a NAT
*/
- struct GNUNET_CONTAINER_MultiHashMap *nat_wait_conns;
+ struct GNUNET_CONTAINER_MultiPeerMap *nat_wait_conns;
/**
* List of active TCP probes.
*/
unsigned long long max_connections;
+ /**
+ * How many more TCP sessions do we have right now?
+ */
+ unsigned long long cur_connections;
+
/**
* ID of task used to update our addresses when one expires.
*/
};
+/**
+ * Start session timeout
+ */
+static void
+start_session_timeout (struct Session *s);
+
+
+/**
+ * Increment session timeout due to activity
+ */
+static void
+reschedule_session_timeout (struct Session *s);
+
+
+/**
+ * Cancel timeout
+ */
+static void
+stop_session_timeout (struct Session *s);
+
+
+/* DEBUG CODE */
+static const char *
+tcp_address_to_string (void *cls, const void *addr, size_t addrlen);
+
+
+static unsigned int sessions;
+
+
+static void
+inc_sessions (struct Plugin *plugin, struct Session *session, int line)
+{
+ sessions++;
+ unsigned int size = GNUNET_CONTAINER_multipeermap_size(plugin->sessionmap);
+ if (sessions != size)
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Inconsistent sessions %u <-> session map size: %u\n",
+ sessions, size);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "%4i Session increased to %u (session map size: %u): `%s' `%s'\n",
+ line,
+ sessions,
+ size,
+ GNUNET_i2s (&session->target),
+ tcp_address_to_string (NULL, session->addr, session->addrlen));
+}
+
+
+static void
+dec_sessions (struct Plugin *plugin, struct Session *session, int line)
+{
+ GNUNET_assert (sessions > 0);
+ unsigned int size = GNUNET_CONTAINER_multipeermap_size(plugin->sessionmap);
+ sessions--;
+ if (sessions != size)
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Inconsistent sessions %u <-> session map size: %u\n",
+ sessions, size);
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "%4i Session decreased to %u (session map size: %u): `%s' `%s'\n",
+ line,
+ sessions,
+ size,
+ GNUNET_i2s (&session->target),
+ tcp_address_to_string (NULL, session->addr, session->addrlen));
+}
+/* DEBUG CODE */
+
+
/**
* Function to check if an inbound connection is acceptable.
* Mostly used to limit the total number of open connections
const struct sockaddr *addr, socklen_t addrlen)
{
struct Plugin *plugin = cls;
-
- if (0 == plugin->max_connections)
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Accepting new incoming TCP connection from `%s'\n",
+ GNUNET_a2s (addr, addrlen));
+ if (plugin->cur_connections >= plugin->max_connections)
return GNUNET_NO;
- plugin->max_connections--;
+ plugin->cur_connections ++;
return GNUNET_YES;
}
void *arg;
size_t args;
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "NPMC called with %d for address `%s'\n", add_remove,
- GNUNET_a2s (addr, addrlen));
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ "NAT notification to %s address `%s'\n",
+ (GNUNET_YES == add_remove) ? "add" : "remove",
+ GNUNET_a2s (addr, addrlen));
/* convert 'addr' to our internal format */
switch (addr->sa_family)
{
case AF_INET:
GNUNET_assert (addrlen == sizeof (struct sockaddr_in));
+ memset (&t4,0, sizeof (t4));
+ t4.options = htonl (myoptions);
t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
t4.t4_port = ((struct sockaddr_in *) addr)->sin_port;
arg = &t4;
break;
case AF_INET6:
GNUNET_assert (addrlen == sizeof (struct sockaddr_in6));
+ memset (&t6, 0, sizeof (t6));
memcpy (&t6.ipv6_addr, &((struct sockaddr_in6 *) addr)->sin6_addr,
sizeof (struct in6_addr));
+ t6.options = htonl (myoptions);
t6.t6_port = ((struct sockaddr_in6 *) addr)->sin6_port;
arg = &t6;
args = sizeof (t6);
return;
}
/* modify our published address list */
- plugin->env->notify_address (plugin->env->cls, add_remove, arg, args);
+ plugin->env->notify_address (plugin->env->cls, add_remove, arg, args, "tcp");
}
const struct IPv6TcpAddress *t6;
int af;
uint16_t port;
+ uint32_t options;
- if (addrlen == sizeof (struct IPv6TcpAddress))
+ switch (addrlen)
{
+ case sizeof (struct IPv6TcpAddress):
t6 = addr;
af = AF_INET6;
port = ntohs (t6->t6_port);
+ options = ntohl (t6->options);
memcpy (&a6, &t6->ipv6_addr, sizeof (a6));
sb = &a6;
- }
- else if (addrlen == sizeof (struct IPv4TcpAddress))
- {
+ break;
+ case sizeof (struct IPv4TcpAddress):
t4 = addr;
af = AF_INET;
port = ntohs (t4->t4_port);
+ options = ntohl (t4->options);
memcpy (&a4, &t4->ipv4_addr, sizeof (a4));
sb = &a4;
- }
- else
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- _("Unexpected address length: %u bytes\n"),
- (unsigned int) addrlen);
- GNUNET_break (0);
+ break;
+ case 0:
+ {
+ GNUNET_snprintf (rbuf, sizeof (rbuf), "%s",
+ TRANSPORT_SESSION_INBOUND_STRING);
+ return rbuf;
+ }
+ default:
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Unexpected address length: %u bytes\n"),
+ (unsigned int) addrlen);
return NULL;
}
if (NULL == inet_ntop (af, sb, buf, INET6_ADDRSTRLEN))
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "inet_ntop");
return NULL;
}
- GNUNET_snprintf (rbuf, sizeof (rbuf), (af == AF_INET6) ? "[%s]:%u" : "%s:%u",
- buf, port);
+ GNUNET_snprintf (rbuf, sizeof (rbuf), (af == AF_INET6) ? "%s.%u.[%s]:%u" : "%s.%u.%s:%u",
+ PLUGIN_NAME, options, buf, port);
return rbuf;
}
* If the function returns GNUNET_SYSERR, its contents are undefined.
* @return GNUNET_OK on success, GNUNET_SYSERR on failure
*/
-int
+static int
tcp_string_to_address (void *cls, const char *addr, uint16_t addrlen,
void **buf, size_t *added)
{
struct sockaddr_storage socket_address;
- int ret = GNUNET_STRINGS_to_address_ip (addr, addrlen,
- &socket_address);
+ char *address;
+ char *plugin;
+ char *optionstr;
+ uint32_t options;
- if (ret != GNUNET_OK)
+ /* Format tcp.options.address:port */
+ address = NULL;
+ plugin = NULL;
+ optionstr = NULL;
+ if ((NULL == addr) || (addrlen == 0))
+ {
+ GNUNET_break (0);
return GNUNET_SYSERR;
+ }
+ if ('\0' != addr[addrlen - 1])
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ if (strlen (addr) != addrlen - 1)
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ plugin = GNUNET_strdup (addr);
+ optionstr = strchr (plugin, '.');
+ if (NULL == optionstr)
+ {
+ GNUNET_break (0);
+ GNUNET_free (plugin);
+ return GNUNET_SYSERR;
+ }
+ optionstr[0] = '\0';
+ optionstr ++;
+ options = atol (optionstr);
+ address = strchr (optionstr, '.');
+ if (NULL == address)
+ {
+ GNUNET_break (0);
+ GNUNET_free (plugin);
+ return GNUNET_SYSERR;
+ }
+ address[0] = '\0';
+ address ++;
- if (socket_address.ss_family == AF_INET)
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_to_address_ip (address, strlen (address),
+ &socket_address))
{
- struct IPv4TcpAddress *t4;
- struct sockaddr_in *in4 = (struct sockaddr_in *) &socket_address;
- t4 = GNUNET_malloc (sizeof (struct IPv4TcpAddress));
- t4->ipv4_addr = in4->sin_addr.s_addr;
- t4->t4_port = in4->sin_port;
- *buf = t4;
- *added = sizeof (struct IPv4TcpAddress);
+ GNUNET_break (0);
+ GNUNET_free (plugin);
+ return GNUNET_SYSERR;
}
- else if (socket_address.ss_family == AF_INET6)
+
+ GNUNET_free (plugin);
+ switch (socket_address.ss_family)
{
- struct IPv6TcpAddress *t6;
- struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &socket_address;
- t6 = GNUNET_malloc (sizeof (struct IPv6TcpAddress));
- t6->ipv6_addr = in6->sin6_addr;
- t6->t6_port = in6->sin6_port;
- *buf = t6;
- *added = sizeof (struct IPv6TcpAddress);
+ case AF_INET:
+ {
+ struct IPv4TcpAddress *t4;
+ struct sockaddr_in *in4 = (struct sockaddr_in *) &socket_address;
+ t4 = GNUNET_malloc (sizeof (struct IPv4TcpAddress));
+ t4->options = htonl (options);
+ t4->ipv4_addr = in4->sin_addr.s_addr;
+ t4->t4_port = in4->sin_port;
+ *buf = t4;
+ *added = sizeof (struct IPv4TcpAddress);
+ return GNUNET_OK;
+ }
+ case AF_INET6:
+ {
+ struct IPv6TcpAddress *t6;
+ struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &socket_address;
+ t6 = GNUNET_malloc (sizeof (struct IPv6TcpAddress));
+ t6->options = htonl (options);
+ t6->ipv6_addr = in6->sin6_addr;
+ t6->t6_port = in6->sin6_port;
+ *buf = t6;
+ *added = sizeof (struct IPv6TcpAddress);
+ return GNUNET_OK;
+ }
+ default:
+ return GNUNET_SYSERR;
}
- return GNUNET_SYSERR;
}
struct Session *ret;
};
-int session_lookup_by_client_it (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+
+static int
+session_lookup_by_client_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
struct SessionClientCtx *sc_ctx = cls;
struct Session *s = value;
return GNUNET_YES;
}
+
/**
* Find the session handle for the given client.
*
*/
static struct Session *
lookup_session_by_client (struct Plugin *plugin,
- const struct GNUNET_SERVER_Client *client)
+ const struct GNUNET_SERVER_Client *client)
{
struct SessionClientCtx sc_ctx;
+
sc_ctx.client = client;
sc_ctx.ret = NULL;
-
- GNUNET_CONTAINER_multihashmap_iterate (plugin->sessionmap, &session_lookup_by_client_it, &sc_ctx);
-
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->sessionmap, &session_lookup_by_client_it, &sc_ctx);
return sc_ctx.ret;
}
*
* @param plugin the plugin
* @param target peer to connect to
- * @param client client to use
+ * @param client client to use, reference counter must have already been increased
* @param is_nat this a NAT session, we should wait for a client to
* connect to us from an address, then assign that to
* the session
create_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target,
struct GNUNET_SERVER_Client *client, int is_nat)
{
- struct Session *ret;
+ struct Session *session;
struct PendingMessage *pm;
struct WelcomeMessage welcome;
- if (is_nat != GNUNET_YES)
- GNUNET_assert (client != NULL);
+ if (GNUNET_YES != is_nat)
+ GNUNET_assert (NULL != client);
else
- GNUNET_assert (client == NULL);
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Creating new session for peer `%4s'\n",
- GNUNET_i2s (target));
-
- ret = GNUNET_malloc (sizeof (struct Session));
- ret->last_activity = GNUNET_TIME_absolute_get ();
- ret->plugin = plugin;
- ret->is_nat = is_nat;
- ret->client = client;
- ret->target = *target;
- ret->expecting_welcome = GNUNET_YES;
- ret->ats_address_network_type = htonl (GNUNET_ATS_NET_UNSPECIFIED);
+ GNUNET_assert (NULL == client);
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating new session for peer `%4s'\n",
+ GNUNET_i2s (target));
+ session = GNUNET_malloc (sizeof (struct Session));
+ session->last_activity = GNUNET_TIME_absolute_get ();
+ session->plugin = plugin;
+ session->is_nat = is_nat;
+ session->client = client;
+ session->target = *target;
+ session->expecting_welcome = GNUNET_YES;
+ session->ats_address_network_type = htonl (GNUNET_ATS_NET_UNSPECIFIED);
pm = GNUNET_malloc (sizeof (struct PendingMessage) +
sizeof (struct WelcomeMessage));
pm->msg = (const char *) &pm[1];
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# bytes currently in TCP buffers"),
pm->message_size, GNUNET_NO);
- GNUNET_CONTAINER_DLL_insert (ret->pending_messages_head,
- ret->pending_messages_tail, pm);
- if (is_nat != GNUNET_YES)
+ GNUNET_CONTAINER_DLL_insert (session->pending_messages_head,
+ session->pending_messages_tail, pm);
+ if (GNUNET_YES != is_nat)
+ {
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# TCP sessions active"), 1,
GNUNET_NO);
- return ret;
+ }
+ start_session_timeout (session);
+
+ return session;
}
char *cbuf;
size_t ret;
- GNUNET_assert (session != NULL);
+ GNUNET_assert (NULL != session);
session->transmit_handle = NULL;
plugin = session->plugin;
- if (buf == NULL)
+ if (NULL == buf)
{
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Timeout trying to transmit to peer `%4s', discarding message queue.\n",
- GNUNET_i2s (&session->target));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout trying to transmit to peer `%4s', discarding message queue.\n",
+ GNUNET_i2s (&session->target));
/* timeout; cancel all messages that have already expired */
hd = NULL;
tl = NULL;
ret = 0;
now = GNUNET_TIME_absolute_get ();
while ((NULL != (pos = session->pending_messages_head)) &&
- (pos->timeout.abs_value <= now.abs_value))
+ (pos->timeout.abs_value_us <= now.abs_value_us))
{
GNUNET_CONTAINER_DLL_remove (session->pending_messages_head,
session->pending_messages_tail, pos);
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Failed to transmit %u byte message to `%4s'.\n",
- pos->message_size, GNUNET_i2s (&session->target));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to transmit %u byte message to `%4s'.\n",
+ pos->message_size, GNUNET_i2s (&session->target));
ret += pos->message_size;
GNUNET_CONTAINER_DLL_insert_after (hd, tl, tl, pos);
}
{
GNUNET_CONTAINER_DLL_remove (hd, tl, pos);
if (pos->transmit_cont != NULL)
- pos->transmit_cont (pos->transmit_cont_cls, &pid, GNUNET_SYSERR);
+ pos->transmit_cont (pos->transmit_cont_cls, &pid, GNUNET_SYSERR, pos->message_size, 0);
GNUNET_free (pos);
}
GNUNET_STATISTICS_update (plugin->env->stats,
GNUNET_CONTAINER_DLL_remove (session->pending_messages_head,
session->pending_messages_tail, pos);
GNUNET_assert (size >= pos->message_size);
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Transmitting message of type %u\n",
- ntohs (((struct GNUNET_MessageHeader *) pos->msg)->type));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting message of type %u\n",
+ ntohs (((struct GNUNET_MessageHeader *) pos->msg)->type));
/* FIXME: this memcpy can be up to 7% of our total runtime */
memcpy (cbuf, pos->msg, pos->message_size);
cbuf += pos->message_size;
{
GNUNET_CONTAINER_DLL_remove (hd, tl, pos);
if (pos->transmit_cont != NULL)
- pos->transmit_cont (pos->transmit_cont_cls, &pid, GNUNET_OK);
+ pos->transmit_cont (pos->transmit_cont_cls, &pid, GNUNET_OK, pos->message_size, pos->message_size); /* FIXME: include TCP overhead */
GNUNET_free (pos);
}
GNUNET_assert (hd == NULL);
GNUNET_assert (tl == NULL);
-#if DEBUG_TCP > 1
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp", "Transmitting %u bytes\n",
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Transmitting %u bytes\n",
ret);
-#endif
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# bytes currently in TCP buffers"),
-(int64_t) ret, GNUNET_NO);
struct PendingMessage *pm;
struct Plugin * plugin = session->plugin;
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Disconnecting session %p for peer `%s' address `%s'\n",
- session,
- GNUNET_i2s (&session->target),
- tcp_address_to_string(NULL, session->addr, session->addrlen));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Disconnecting session of peer `%s' address `%s'\n",
+ GNUNET_i2s (&session->target),
+ tcp_address_to_string (NULL, session->addr, session->addrlen));
- GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(plugin->sessionmap, &session->target.hashPubKey, session) ||
- GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(plugin->nat_wait_conns, &session->target.hashPubKey, session));
+ stop_session_timeout (session);
+
+ if (GNUNET_YES == GNUNET_CONTAINER_multipeermap_remove (plugin->sessionmap, &session->target, session))
+ {
+ GNUNET_STATISTICS_update (session->plugin->env->stats,
+ gettext_noop ("# TCP sessions active"), -1,
+ GNUNET_NO);
+ dec_sessions (plugin, session, __LINE__);
+ }
+ else GNUNET_assert (GNUNET_YES == GNUNET_CONTAINER_multipeermap_remove (plugin->nat_wait_conns, &session->target, session));
/* clean up state */
if (session->transmit_handle != NULL)
{
- GNUNET_CONNECTION_notify_transmit_ready_cancel (session->transmit_handle);
+ GNUNET_SERVER_notify_transmit_ready_cancel (session->transmit_handle);
session->transmit_handle = NULL;
}
session->plugin->env->session_end (session->plugin->env->cls,
&session->target, session);
- if (session->nat_connection_timeout != GNUNET_SCHEDULER_NO_TASK)
+ if (GNUNET_SCHEDULER_NO_TASK != session->nat_connection_timeout)
{
GNUNET_SCHEDULER_cancel (session->nat_connection_timeout);
session->nat_connection_timeout = GNUNET_SCHEDULER_NO_TASK;
while (NULL != (pm = session->pending_messages_head))
{
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- pm->transmit_cont !=
- NULL ? "Could not deliver message to `%4s'.\n" :
- "Could not deliver message to `%4s', notifying.\n",
- GNUNET_i2s (&session->target));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ pm->transmit_cont !=
+ NULL ? "Could not deliver message to `%4s'.\n" :
+ "Could not deliver message to `%4s', notifying.\n",
+ GNUNET_i2s (&session->target));
GNUNET_STATISTICS_update (session->plugin->env->stats,
gettext_noop ("# bytes currently in TCP buffers"),
-(int64_t) pm->message_size, GNUNET_NO);
session->pending_messages_tail, pm);
if (NULL != pm->transmit_cont)
pm->transmit_cont (pm->transmit_cont_cls, &session->target,
- GNUNET_SYSERR);
+ GNUNET_SYSERR, pm->message_size, 0);
GNUNET_free (pm);
}
if (session->receive_delay_task != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (session->receive_delay_task);
- if (session->client != NULL)
+ if (NULL != session->client)
GNUNET_SERVER_receive_done (session->client, GNUNET_SYSERR);
}
- if (session->client != NULL)
+ if (NULL != session->client)
{
+ GNUNET_SERVER_client_disconnect (session->client);
GNUNET_SERVER_client_drop (session->client);
session->client = NULL;
}
- GNUNET_STATISTICS_update (session->plugin->env->stats,
- gettext_noop ("# TCP sessions active"), -1,
- GNUNET_NO);
GNUNET_free_non_null (session->addr);
GNUNET_assert (NULL == session->transmit_handle);
GNUNET_free (session);
}
+struct FindSessionContext
+{
+ struct Session *s;
+ int res;
+};
+
+
+static int
+session_it (void *cls,
+ const struct GNUNET_PeerIdentity * key,
+ void *value)
+{
+ struct FindSessionContext *res = cls;
+
+ if (res->s == value)
+ {
+ res->res = GNUNET_OK;
+ return GNUNET_NO;
+ }
+ return GNUNET_YES;
+}
+
+
+static int
+find_session (struct Plugin *plugin, struct Session *session)
+{
+ struct FindSessionContext session_map_res;
+ struct FindSessionContext nat_map_res;
+
+ session_map_res.s = session;
+ session_map_res.res = GNUNET_SYSERR;
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->sessionmap, &session_it, &session_map_res);
+
+ nat_map_res.s = session;
+ nat_map_res.res = GNUNET_SYSERR;
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->nat_wait_conns, &session_it, &nat_map_res);
+
+ if ((session_map_res.res == GNUNET_SYSERR) && (nat_map_res.res == GNUNET_SYSERR))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ return GNUNET_OK;
+}
+
+
/**
* Function that can be used by the transport service to transmit
* a message using the plugin. Note that in the case of a
struct Plugin * plugin = cls;
struct PendingMessage *pm;
- GNUNET_assert (plugin != NULL);
- GNUNET_assert (session != NULL);
+ GNUNET_assert (NULL != plugin);
+ GNUNET_assert (NULL != session);
+
+ if (GNUNET_SYSERR == find_session(plugin, session))
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ _("Trying to send with invalid session %p\n"));
+ return GNUNET_SYSERR;
+ }
/* create new message entry */
pm = GNUNET_malloc (sizeof (struct PendingMessage) + msgbuf_size);
pm->transmit_cont = cont;
pm->transmit_cont_cls = cont_cls;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Asked to transmit %u bytes to `%s', added message to list.\n",
+ msgbuf_size, GNUNET_i2s (&session->target));
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Asked to transmit %u bytes to `%s', added message to list.\n",
- msgbuf_size, GNUNET_i2s (&session->target));
-
- if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains_value(plugin->sessionmap, &session->target.hashPubKey, session))
+ if (GNUNET_YES == GNUNET_CONTAINER_multipeermap_contains_value (plugin->sessionmap,
+ &session->target,
+ session))
{
GNUNET_assert (session->client != NULL);
-
+ reschedule_session_timeout (session);
GNUNET_SERVER_client_set_timeout (session->client,
GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
GNUNET_STATISTICS_update (plugin->env->stats,
process_pending_messages (session);
return msgbuf_size;
}
- else if (GNUNET_YES == GNUNET_CONTAINER_multihashmap_contains_value(plugin->nat_wait_conns, &session->target.hashPubKey, session))
+ else if (GNUNET_YES == GNUNET_CONTAINER_multipeermap_contains_value(plugin->nat_wait_conns, &session->target, session))
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "This NAT WAIT session for peer `%s' is not yet ready!\n",
- GNUNET_i2s (&session->target));
-
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "This NAT WAIT session for peer `%s' is not yet ready!\n",
+ GNUNET_i2s (&session->target));
+ reschedule_session_timeout (session);
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# bytes currently in TCP buffers"),
msgbuf_size, GNUNET_NO);
}
else
{
- if (cont != NULL)
- cont (cont_cls, &session->target, GNUNET_SYSERR);
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Invalid session %p\n", session);
+ if (NULL != cont)
+ cont (cont_cls, &session->target, GNUNET_SYSERR, pm->message_size, 0);
GNUNET_break (0);
GNUNET_free (pm);
return GNUNET_SYSERR; /* session does not exist here */
}
}
+
struct SessionItCtx
{
- void * addr;
+ void *addr;
size_t addrlen;
- struct Session * result;
+ struct Session *result;
};
-int session_lookup_it (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+
+static int
+session_lookup_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
struct SessionItCtx * si_ctx = cls;
struct Session * session = value;
#if 0
char * a1 = strdup (tcp_address_to_string(NULL, session->addr, session->addrlen));
char * a2 = strdup (tcp_address_to_string(NULL, si_ctx->addr, si_ctx->addrlen));
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- "Comparing: %s %u <-> %s %u\n",
- a1,
- session->addrlen,
- a2,
- si_ctx->addrlen);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Comparing: %s %u <-> %s %u\n",
+ a1,
+ session->addrlen,
+ a2,
+ si_ctx->addrlen);
GNUNET_free (a1);
GNUNET_free (a2);
#endif
#if 0
a1 = strdup (tcp_address_to_string(NULL, session->addr, session->addrlen));
a2 = strdup (tcp_address_to_string(NULL, si_ctx->addr, si_ctx->addrlen));
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- "Comparing: %s %u <-> %s %u , OK!\n",
- a1,
- session->addrlen,
- a2,
- si_ctx->addrlen);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Comparing: %s %u <-> %s %u , OK!\n",
+ a1,
+ session->addrlen,
+ a2,
+ si_ctx->addrlen);
GNUNET_free (a1);
GNUNET_free (a2);
#endif
return GNUNET_NO;
}
+
/**
* Task cleaning up a NAT connection attempt after timeout
*/
-
static void
nat_connect_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct Session *session = cls;
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "NAT WAIT connection to `%4s' at `%s' could not be established, removing session\n",
- GNUNET_i2s (&session->target), tcp_address_to_string(NULL, session->addr, session->addrlen));
-
+ session->nat_connection_timeout = GNUNET_SCHEDULER_NO_TASK;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "NAT WAIT connection to `%4s' at `%s' could not be established, removing session\n",
+ GNUNET_i2s (&session->target), tcp_address_to_string(NULL, session->addr, session->addrlen));
disconnect_session (session);
-
}
+
/**
* Create a new session to transmit data to the target
* This session will used to send data to this peer and the plugin will
*/
static struct Session *
tcp_plugin_get_session (void *cls,
- const struct GNUNET_HELLO_Address *address)
+ const struct GNUNET_HELLO_Address *address)
{
- struct Plugin * plugin = cls;
- struct Session * session = NULL;
-
+ struct Plugin *plugin = cls;
+ struct Session *session = NULL;
int af;
const void *sb;
size_t sbs;
const struct IPv6TcpAddress *t6;
struct GNUNET_ATS_Information ats;
unsigned int is_natd = GNUNET_NO;
- size_t addrlen = 0;
+ size_t addrlen;
GNUNET_assert (plugin != NULL);
GNUNET_assert (address != NULL);
-
addrlen = address->address_length;
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Trying to get session for `%s' address length %i\n",
- tcp_address_to_string(NULL, address->address, address->address_length),
- addrlen);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Trying to get session for `%s' address of peer `%s'\n",
+ tcp_address_to_string(NULL, address->address, address->address_length),
+ GNUNET_i2s (&address->peer));
/* look for existing session */
- if (GNUNET_CONTAINER_multihashmap_contains(plugin->sessionmap, &address->peer.hashPubKey))
+ if (GNUNET_YES ==
+ GNUNET_CONTAINER_multipeermap_contains (plugin->sessionmap,
+ &address->peer))
{
struct SessionItCtx si_ctx;
si_ctx.result = NULL;
- GNUNET_CONTAINER_multihashmap_get_multiple(plugin->sessionmap, &address->peer.hashPubKey, &session_lookup_it, &si_ctx);
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->sessionmap,
+ &address->peer,
+ &session_lookup_it, &si_ctx);
if (si_ctx.result != NULL)
{
session = si_ctx.result;
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Found exisiting session for `%s' address `%s' session %p\n",
- GNUNET_i2s (&address->peer),
- tcp_address_to_string(NULL, address->address, address->address_length),
- session);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Found existing session for `%s' address `%s' session %p\n",
+ GNUNET_i2s (&address->peer),
+ tcp_address_to_string(NULL, address->address, address->address_length),
+ session);
return session;
}
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Existing sessions did not match address `%s' or peer `%s'\n",
+ tcp_address_to_string(NULL, address->address, address->address_length),
+ GNUNET_i2s (&address->peer));
}
if (addrlen == sizeof (struct IPv6TcpAddress))
}
else
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- _("Address of unexpected length: %u\n"), addrlen);
- GNUNET_break (0);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop
+ ("# requests to create session with invalid address"),
+ 1, GNUNET_NO);
return NULL;
}
return NULL;
}
- if (0 == plugin->max_connections)
+ if (plugin->cur_connections >= plugin->max_connections)
{
/* saturated */
return NULL;
if ((is_natd == GNUNET_YES) &&
(GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_contains (plugin->nat_wait_conns,
- &address->peer.hashPubKey)))
+ GNUNET_CONTAINER_multipeermap_contains (plugin->nat_wait_conns,
+ &address->peer)))
{
/* Only do one NAT punch attempt per peer identity */
return NULL;
if ((is_natd == GNUNET_YES) && (NULL != plugin->nat) &&
(GNUNET_NO ==
- GNUNET_CONTAINER_multihashmap_contains (plugin->nat_wait_conns,
- &address->peer.hashPubKey)))
+ GNUNET_CONTAINER_multipeermap_contains (plugin->nat_wait_conns,
+ &address->peer)))
{
-#if DEBUG_TCP_NAT
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- _("Found valid IPv4 NAT address (creating session)!\n"));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Found valid IPv4 NAT address (creating session)!\n") ;
session = create_session (plugin, &address->peer, NULL, GNUNET_YES);
session->addrlen = 0;
session->addr = NULL;
session->ats_address_network_type = ats.value;
- session->nat_connection_timeout = GNUNET_SCHEDULER_add_delayed(NAT_TIMEOUT,
- &nat_connect_timeout,
- session);
+ session->nat_connection_timeout = GNUNET_SCHEDULER_add_delayed (NAT_TIMEOUT,
+ &nat_connect_timeout,
+ session);
GNUNET_assert (session != NULL);
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multipeermap_put (plugin->nat_wait_conns,
+ &session->target,
+ session,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
- GNUNET_assert (GNUNET_CONTAINER_multihashmap_put
- (plugin->nat_wait_conns, &address->peer.hashPubKey, session,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY) == GNUNET_OK);
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Created NAT WAIT connection to `%4s' at `%s'\n",
- GNUNET_i2s (&session->target), GNUNET_a2s (sb, sbs));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Created NAT WAIT connection to `%4s' at `%s'\n",
+ GNUNET_i2s (&session->target), GNUNET_a2s (sb, sbs));
if (GNUNET_OK == GNUNET_NAT_run_client (plugin->nat, &a4))
return session;
else
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Running NAT client for `%4s' at `%s' failed\n",
- GNUNET_i2s (&session->target), GNUNET_a2s (sb, sbs));
-
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Running NAT client for `%4s' at `%s' failed\n",
+ GNUNET_i2s (&session->target), GNUNET_a2s (sb, sbs));
disconnect_session (session);
return NULL;
}
}
/* create new outbound session */
- GNUNET_assert (0 != plugin->max_connections);
+ GNUNET_assert (plugin->cur_connections <= plugin->max_connections);
sa = GNUNET_CONNECTION_create_from_sockaddr (af, sb, sbs);
if (sa == NULL)
{
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Failed to create connection to `%4s' at `%s'\n",
- GNUNET_i2s (&session->target), GNUNET_a2s (sb, sbs));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to create connection to `%4s' at `%s'\n",
+ GNUNET_i2s (&address->peer), GNUNET_a2s (sb, sbs));
return NULL;
}
- plugin->max_connections--;
+ plugin->cur_connections++;
+ if (plugin->cur_connections == plugin->max_connections)
+ GNUNET_SERVER_suspend (plugin->server); /* Maximum number of connections rechead */
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Asked to transmit to `%4s', creating fresh session using address `%s'.\n",
- GNUNET_i2s (&address->peer), GNUNET_a2s (sb, sbs));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Asked to transmit to `%4s', creating fresh session using address `%s'.\n",
+ GNUNET_i2s (&address->peer), GNUNET_a2s (sb, sbs));
session = create_session (plugin,
&address->peer,
session->addrlen = addrlen;
session->ats_address_network_type = ats.value;
- GNUNET_CONTAINER_multihashmap_put(plugin->sessionmap, &address->peer.hashPubKey, session, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Creating new session for `%s' address `%s' session %p\n",
- GNUNET_i2s (&address->peer),
- tcp_address_to_string(NULL, address->address, address->address_length),
- session);
-
+ GNUNET_CONTAINER_multipeermap_put (plugin->sessionmap,
+ &session->target,
+ session, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+ inc_sessions (plugin, session, __LINE__);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating new session for `%s' address `%s' session %p\n",
+ GNUNET_i2s (&address->peer),
+ tcp_address_to_string(NULL, address->address, address->address_length),
+ session);
/* Send TCP Welcome */
process_pending_messages (session);
}
-int session_disconnect_it (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+static int
+session_disconnect_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
struct Session *session = value;
return GNUNET_YES;
}
+
/**
* Function that can be called to force a disconnect from the
* specified neighbour. This should also cancel all previously
tcp_plugin_disconnect (void *cls, const struct GNUNET_PeerIdentity *target)
{
struct Plugin *plugin = cls;
- struct Session *nat_session = NULL;
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Disconnecting peer `%4s'\n", GNUNET_i2s (target));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Disconnecting peer `%4s'\n", GNUNET_i2s (target));
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->sessionmap, target,
+ &session_disconnect_it, plugin);
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->nat_wait_conns, target,
+ &session_disconnect_it, plugin);
+}
- GNUNET_CONTAINER_multihashmap_get_multiple (plugin->sessionmap, &target->hashPubKey, session_disconnect_it, plugin);
- nat_session = GNUNET_CONTAINER_multihashmap_get(plugin->nat_wait_conns, &target->hashPubKey);
- if (nat_session != NULL)
- {
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Cleaning up pending NAT session for peer `%4s'\n", GNUNET_i2s (target));
- disconnect_session (nat_session);
- }
-}
+/**
+ * Running pretty printers: head
+ */
+static struct PrettyPrinterContext *ppc_dll_head;
+/**
+ * Running pretty printers: tail
+ */
+static struct PrettyPrinterContext *ppc_dll_tail;
/**
* Context for address to string conversion.
*/
struct PrettyPrinterContext
{
+ /**
+ * DLL
+ */
+ struct PrettyPrinterContext *next;
+
+ /**
+ * DLL
+ */
+ struct PrettyPrinterContext *prev;
+
+ /**
+ * Timeout task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
+ /**
+ * Resolver handle
+ */
+ struct GNUNET_RESOLVER_RequestHandle *resolver_handle;
+
/**
* Function to call with the result.
*/
* Port to add after the IP address.
*/
uint16_t port;
+
+ /**
+ * IPv6 address
+ */
+ int ipv6;
+
+ /**
+ * Options
+ */
+ uint32_t options;
};
+
+void
+ppc_cancel_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ int count = 0;
+ struct PrettyPrinterContext *ppc = cls;
+ struct PrettyPrinterContext *cur;
+ for (cur = ppc_dll_head; (NULL != cur); cur = cur->next)
+ {
+ if (cur != ppc)
+ count++;
+ }
+
+ // GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Cancel request %p, %u pending\n", ppc, count);
+ ppc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ if (NULL != ppc->resolver_handle)
+ {
+ GNUNET_RESOLVER_request_cancel (ppc->resolver_handle);
+ ppc->resolver_handle = NULL;
+ }
+
+ GNUNET_CONTAINER_DLL_remove (ppc_dll_head, ppc_dll_tail, ppc);
+ GNUNET_free (ppc);
+}
+
+
/**
* Append our port and forward the result.
*
append_port (void *cls, const char *hostname)
{
struct PrettyPrinterContext *ppc = cls;
+ struct PrettyPrinterContext *cur;
char *ret;
-
+ int count = 0;
+
+ for (cur = ppc_dll_head; (NULL != cur); cur = cur->next)
+ {
+ if (cur != ppc)
+ count++;
+ }
+ //GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Callback request %p == %s, %u pending\n", ppc, hostname, count);
if (hostname == NULL)
{
ppc->asc (ppc->asc_cls, NULL);
+ GNUNET_CONTAINER_DLL_remove (ppc_dll_head, ppc_dll_tail, ppc);
+ GNUNET_SCHEDULER_cancel (ppc->timeout_task);
+ ppc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ ppc->resolver_handle = NULL;
+ //GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Done request %p, %u pending\n", ppc, count);
GNUNET_free (ppc);
return;
}
- GNUNET_asprintf (&ret, "%s:%d", hostname, ppc->port);
+ for (cur = ppc_dll_head; (NULL != cur); cur = cur->next)
+ {
+ if (cur == ppc)
+ break;
+ }
+ if (NULL == cur)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid callback for PPC %p \n", ppc);
+ return;
+ }
+
+ if (GNUNET_YES == ppc->ipv6)
+ GNUNET_asprintf (&ret, "%s.%u.[%s]:%d", PLUGIN_NAME, ppc->options, hostname, ppc->port);
+ else
+ GNUNET_asprintf (&ret, "%s.%u.%s:%d", PLUGIN_NAME, ppc->options, hostname, ppc->port);
ppc->asc (ppc->asc_cls, ret);
GNUNET_free (ret);
}
const struct IPv4TcpAddress *t4;
const struct IPv6TcpAddress *t6;
uint16_t port;
+ uint32_t options;
if (addrlen == sizeof (struct IPv6TcpAddress))
{
a6.sin6_port = t6->t6_port;
memcpy (&a6.sin6_addr, &t6->ipv6_addr, sizeof (struct in6_addr));
port = ntohs (t6->t6_port);
+ options = ntohl (t6->options);
sb = &a6;
sbs = sizeof (a6);
}
a4.sin_port = t4->t4_port;
a4.sin_addr.s_addr = t4->ipv4_addr;
port = ntohs (t4->t4_port);
+ options = ntohl (t4->options);
sb = &a4;
sbs = sizeof (a4);
}
+ else if (0 == addrlen)
+ {
+ asc (asc_cls, TRANSPORT_SESSION_INBOUND_STRING);
+ asc (asc_cls, NULL);
+ return;
+ }
else
{
/* invalid address */
return;
}
ppc = GNUNET_malloc (sizeof (struct PrettyPrinterContext));
+ if (addrlen == sizeof (struct IPv6TcpAddress))
+ ppc->ipv6 = GNUNET_YES;
+ else
+ ppc->ipv6 = GNUNET_NO;
ppc->asc = asc;
ppc->asc_cls = asc_cls;
ppc->port = port;
- GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric, timeout, &append_port, ppc);
+ ppc->options = options;
+ ppc->timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(timeout, 2),
+ &ppc_cancel_task, ppc);
+ ppc->resolver_handle = GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric,
+ timeout, &append_port, ppc);
+ if (NULL != ppc->resolver_handle)
+ {
+ //GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Adding request %p\n", ppc);
+ GNUNET_CONTAINER_DLL_insert (ppc_dll_head, ppc_dll_tail, ppc);
+ }
+ else
+ {
+ GNUNET_break (0);
+ GNUNET_free (ppc);
+ }
}
if ((addrlen != sizeof (struct IPv4TcpAddress)) &&
(addrlen != sizeof (struct IPv6TcpAddress)))
{
- GNUNET_break_op (0);
- return GNUNET_SYSERR;
+
+
+ return GNUNET_SYSERR;
}
+
if (addrlen == sizeof (struct IPv4TcpAddress))
{
v4 = (struct IPv4TcpAddress *) addr;
+ if (0 != memcmp (&v4->options, &myoptions, sizeof (myoptions)))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
if (GNUNET_OK != check_port (plugin, ntohs (v4->t4_port)))
return GNUNET_SYSERR;
if (GNUNET_OK !=
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
+ if (0 != memcmp (&v6->options, &myoptions, sizeof (myoptions)))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
if (GNUNET_OK != check_port (plugin, ntohs (v6->t6_port)))
return GNUNET_SYSERR;
if (GNUNET_OK !=
const struct sockaddr_in *s4;
const struct sockaddr_in6 *s6;
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp", "received NAT probe\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Received NAT probe\n");
/* We have received a TCP NAT probe, meaning we (hopefully) initiated
* a connection to this peer by running gnunet-nat-client. This peer
}
session =
- GNUNET_CONTAINER_multihashmap_get (plugin->nat_wait_conns,
+ GNUNET_CONTAINER_multipeermap_get (plugin->nat_wait_conns,
&tcp_nat_probe->
- clientIdentity.hashPubKey);
+ clientIdentity);
if (session == NULL)
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Did NOT find session for NAT probe!\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Did NOT find session for NAT probe!\n");
GNUNET_SERVER_receive_done (client, GNUNET_OK);
return;
}
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Found session for NAT probe!\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Found session for NAT probe!\n");
if (session->nat_connection_timeout != GNUNET_SCHEDULER_NO_TASK)
{
session->nat_connection_timeout = GNUNET_SCHEDULER_NO_TASK;
}
- GNUNET_assert (GNUNET_CONTAINER_multihashmap_remove
- (plugin->nat_wait_conns,
- &tcp_nat_probe->clientIdentity.hashPubKey,
- session) == GNUNET_YES);
if (GNUNET_OK != GNUNET_SERVER_client_get_address (client, &vaddr, &alen))
{
GNUNET_break (0);
- GNUNET_free (session);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
+ GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ disconnect_session (session);
return;
}
-
- GNUNET_SERVER_client_keep (client);
- session->client = client;
+ GNUNET_assert (GNUNET_CONTAINER_multipeermap_remove
+ (plugin->nat_wait_conns,
+ &tcp_nat_probe->clientIdentity,
+ session) == GNUNET_YES);
+ GNUNET_CONTAINER_multipeermap_put (plugin->sessionmap,
+ &session->target, session,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
session->last_activity = GNUNET_TIME_absolute_get ();
session->inbound = GNUNET_NO;
-
-#if DEBUG_TCP_NAT
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Found address `%s' for incoming connection\n",
- GNUNET_a2s (vaddr, alen));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Found address `%s' for incoming connection\n",
+ GNUNET_a2s (vaddr, alen));
switch (((const struct sockaddr *) vaddr)->sa_family)
{
case AF_INET:
s4 = vaddr;
t4 = GNUNET_malloc (sizeof (struct IPv4TcpAddress));
+ t4->options = 0;
t4->t4_port = s4->sin_port;
t4->ipv4_addr = s4->sin_addr.s_addr;
session->addr = t4;
case AF_INET6:
s6 = vaddr;
t6 = GNUNET_malloc (sizeof (struct IPv6TcpAddress));
+ t6->options = 0;
t6->t6_port = s6->sin6_port;
memcpy (&t6->ipv6_addr, &s6->sin6_addr, sizeof (struct in6_addr));
session->addr = t6;
break;
default:
GNUNET_break_op (0);
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Bad address for incoming connection!\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Bad address for incoming connection!\n");
GNUNET_free (vaddr);
-
- GNUNET_SERVER_client_drop (client);
- GNUNET_free (session);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ disconnect_session (session);
return;
}
GNUNET_free (vaddr);
-
- GNUNET_CONTAINER_multihashmap_put(plugin->sessionmap, &session->target.hashPubKey, session, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
-
+ GNUNET_break (NULL == session->client);
+ GNUNET_SERVER_client_keep (client);
+ session->client = client;
+ inc_sessions (plugin, session, __LINE__);
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# TCP sessions active"), 1,
GNUNET_NO);
struct IPv6TcpAddress *t6;
const struct sockaddr_in *s4;
const struct sockaddr_in6 *s6;
+ struct GNUNET_ATS_Information ats;
if (0 ==
memcmp (&wm->clientIdentity, plugin->env->my_identity,
{
/* refuse connections from ourselves */
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ if (GNUNET_OK == GNUNET_SERVER_client_get_address (client, &vaddr, &alen))
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Received %s message from my own identity `%4s' on address `%s'\n",
+ "WELCOME", GNUNET_i2s (&wm->clientIdentity), GNUNET_a2s (vaddr, alen));
+ GNUNET_free (vaddr);
+ }
+ GNUNET_break_op (0);
return;
}
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Received %s message from `%4s'\n", "WELCOME",
- GNUNET_i2s (&wm->clientIdentity));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Received %s message from `%4s' %p\n", "WELCOME",
+ GNUNET_i2s (&wm->clientIdentity), client);
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# TCP WELCOME messages received"), 1,
GNUNET_NO);
-
session = lookup_session_by_client (plugin, client);
if (session != NULL)
{
if (GNUNET_OK == GNUNET_SERVER_client_get_address (client, &vaddr, &alen))
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Found existing session %p for peer `%s'\n",
- session,
- GNUNET_a2s (vaddr, alen));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Found existing session %p for peer `%s'\n",
+ session,
+ GNUNET_a2s (vaddr, alen));
GNUNET_free (vaddr);
}
}
else
{
GNUNET_SERVER_client_keep (client);
+ if (plugin->service != NULL) /* Otherwise value is incremented in tcp_access_check */
+ plugin->cur_connections++;
+ if (plugin->cur_connections == plugin->max_connections)
+ GNUNET_SERVER_suspend (plugin->server); /* Maximum number of connections rechead */
+
session = create_session (plugin, &wm->clientIdentity, client, GNUNET_NO);
session->inbound = GNUNET_YES;
-
if (GNUNET_OK == GNUNET_SERVER_client_get_address (client, &vaddr, &alen))
{
if (alen == sizeof (struct sockaddr_in))
{
s4 = vaddr;
t4 = GNUNET_malloc (sizeof (struct IPv4TcpAddress));
+ t4->options = htonl (0);
t4->t4_port = s4->sin_port;
t4->ipv4_addr = s4->sin_addr.s_addr;
session->addr = t4;
{
s6 = vaddr;
t6 = GNUNET_malloc (sizeof (struct IPv6TcpAddress));
+ t6->options = htonl (0);
t6->t6_port = s6->sin6_port;
memcpy (&t6->ipv6_addr, &s6->sin6_addr, sizeof (struct in6_addr));
session->addr = t6;
session->addrlen = sizeof (struct IPv6TcpAddress);
}
- struct GNUNET_ATS_Information ats;
ats = plugin->env->get_address_type (plugin->env->cls, vaddr ,alen);
session->ats_address_network_type = ats.value;
-
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating new session %p for peer `%s'\n",
+ session,
+ GNUNET_a2s (vaddr, alen));
GNUNET_free (vaddr);
+ GNUNET_CONTAINER_multipeermap_put (plugin->sessionmap,
+ &session->target,
+ session,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+ inc_sessions (plugin, session, __LINE__);
}
else
{
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Did not obtain TCP socket address for incoming connection\n");
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Did not obtain TCP socket address for incoming connection\n");
+ GNUNET_break (0);
}
- GNUNET_CONTAINER_multihashmap_put(plugin->sessionmap, &wm->clientIdentity.hashPubKey, session, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
}
if (session->expecting_welcome != GNUNET_YES)
{
GNUNET_break_op (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ GNUNET_break (0);
return;
}
session->last_activity = GNUNET_TIME_absolute_get ();
session->expecting_welcome = GNUNET_NO;
+ /* Notify transport and ATS about new session */
+ if (GNUNET_YES == session->inbound)
+ {
+ plugin->env->session_start (NULL, &wm->clientIdentity, PLUGIN_NAME,
+ (GNUNET_YES == session->inbound) ? NULL : session->addr,
+ (GNUNET_YES == session->inbound) ? 0 : session->addrlen,
+ session, &ats, 1);
+ }
process_pending_messages (session);
delayed_done (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct Session *session = cls;
- struct GNUNET_TIME_Relative delay;
- struct GNUNET_ATS_Information ats;
session->receive_delay_task = GNUNET_SCHEDULER_NO_TASK;
- delay =
- session->plugin->env->receive (session->plugin->env->cls,
- &session->target, NULL, &ats, 0, session,
- NULL, 0);
- if (delay.rel_value == 0)
- GNUNET_SERVER_receive_done (session->client, GNUNET_OK);
- else
- session->receive_delay_task =
- GNUNET_SCHEDULER_add_delayed (delay, &delayed_done, session);
+ reschedule_session_timeout (session);
+
+ GNUNET_SERVER_receive_done (session->client, GNUNET_OK);
}
if (NULL == session)
{
/* No inbound session found */
+ void *vaddr;
+ size_t alen;
+
+ GNUNET_SERVER_client_get_address (client, &vaddr, &alen);
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Received unexpected %u bytes of type %u from `%s'\n",
+ (unsigned int) ntohs (message->size),
+ (unsigned int) ntohs (message->type),
+ GNUNET_a2s(vaddr, alen));
GNUNET_break_op (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ GNUNET_free_non_null(vaddr);
return;
}
else if (GNUNET_YES == session->expecting_welcome)
/* Session is expecting WELCOME message */
void *vaddr;
size_t alen;
+
GNUNET_SERVER_client_get_address (client, &vaddr, &alen);
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- "Received unexpected %u bytes of type %u from `%s'\n",
- (unsigned int) ntohs (message->size),
- (unsigned int) ntohs (message->type),
- GNUNET_a2s(vaddr, alen));
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Received unexpected %u bytes of type %u from `%s'\n",
+ (unsigned int) ntohs (message->size),
+ (unsigned int) ntohs (message->type),
+ GNUNET_a2s(vaddr, alen));
GNUNET_break_op (0);
GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+ GNUNET_free_non_null(vaddr);
return;
}
session->last_activity = GNUNET_TIME_absolute_get ();
-
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
"Passing %u bytes of type %u from `%4s' to transport service.\n",
(unsigned int) ntohs (message->size),
(unsigned int) ntohs (message->type),
GNUNET_STATISTICS_update (plugin->env->stats,
gettext_noop ("# bytes received via TCP"),
ntohs (message->size), GNUNET_NO);
- struct GNUNET_ATS_Information distance[2];
+ struct GNUNET_ATS_Information distance;
- distance[0].type = htonl (GNUNET_ATS_QUALITY_NET_DISTANCE);
- distance[0].value = htonl (1);
- distance[1].type = htonl (GNUNET_ATS_NETWORK_TYPE);
- distance[1].value = session->ats_address_network_type;
+ distance.type = htonl (GNUNET_ATS_NETWORK_TYPE);
+ distance.value = session->ats_address_network_type;
GNUNET_break (ntohl(session->ats_address_network_type) != GNUNET_ATS_NET_UNSPECIFIED);
+ GNUNET_assert (GNUNET_CONTAINER_multipeermap_contains_value (plugin->sessionmap,
+ &session->target,
+ session));
+
delay = plugin->env->receive (plugin->env->cls,
&session->target,
message,
- (const struct GNUNET_ATS_Information *) &distance,
- 1, session,
+ session,
(GNUNET_YES == session->inbound) ? NULL : session->addr,
(GNUNET_YES == session->inbound) ? 0 : session->addrlen);
- if (delay.rel_value == 0)
+ plugin->env->update_address_metrics (plugin->env->cls,
+ &session->target,
+ (GNUNET_YES == session->inbound) ? NULL : session->addr,
+ (GNUNET_YES == session->inbound) ? 0 : session->addrlen,
+ session, &distance, 1);
+
+ reschedule_session_timeout (session);
+
+ if (0 == delay.rel_value_us)
{
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
else
{
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Throttling receiving from `%s' for %llu ms\n",
- GNUNET_i2s (&session->target),
- (unsigned long long) delay.rel_value);
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Throttling receiving from `%s' for %s\n",
+ GNUNET_i2s (&session->target),
+ GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
GNUNET_SERVER_disable_receive_done_warning (client);
session->receive_delay_task =
GNUNET_SCHEDULER_add_delayed (delay, &delayed_done, session);
if (client == NULL)
return;
- plugin->max_connections++;
session = lookup_session_by_client (plugin, client);
if (session == NULL)
return; /* unknown, nothing to do */
-#if DEBUG_TCP
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp",
- "Destroying session of `%4s' with %s due to network-level disconnect.\n",
- GNUNET_i2s (&session->target),
- (session->addr !=
- NULL) ? tcp_address_to_string (session->plugin,
- session->addr,
- session->addrlen) :
- "*");
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Destroying session of `%4s' with %s due to network-level disconnect.\n",
+ GNUNET_i2s (&session->target),
+ (session->addr !=
+ NULL) ? tcp_address_to_string (session->plugin,
+ session->addr,
+ session->addrlen) :
+ "*");
+
+ if (plugin->cur_connections == plugin->max_connections)
+ GNUNET_SERVER_resume (plugin->server); /* Resume server */
+
+ if (plugin->cur_connections < 1)
+ GNUNET_break (0);
+ else
+ plugin->cur_connections--;
+
GNUNET_STATISTICS_update (session->plugin->env->stats,
gettext_noop
("# network-level TCP disconnect events"), 1,
tcp_probe_ctx);
if (buf == NULL)
{
- GNUNET_CONNECTION_destroy (tcp_probe_ctx->sock, GNUNET_NO);
+ GNUNET_CONNECTION_destroy (tcp_probe_ctx->sock);
GNUNET_free (tcp_probe_ctx);
return 0;
}
}
+/**
+ * Session was idle, so disconnect it
+ */
+static void
+session_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ GNUNET_assert (NULL != cls);
+ struct Session *s = cls;
+
+ s->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Session %p was idle for %s, disconnecting\n",
+ s,
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
+ GNUNET_YES));
+ /* call session destroy function */
+ disconnect_session(s);
+}
+
+
+/**
+ * Start session timeout
+ */
+static void
+start_session_timeout (struct Session *s)
+{
+ GNUNET_assert (NULL != s);
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == s->timeout_task);
+ s->timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
+ &session_timeout,
+ s);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout for session %p set to %s\n",
+ s,
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
+ GNUNET_YES));
+}
+
+
+/**
+ * Increment session timeout due to activity
+ */
+static void
+reschedule_session_timeout (struct Session *s)
+{
+ GNUNET_assert (NULL != s);
+ GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != s->timeout_task);
+
+ GNUNET_SCHEDULER_cancel (s->timeout_task);
+ s->timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
+ &session_timeout,
+ s);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout rescheduled for session %p set to %s\n",
+ s,
+ GNUNET_STRINGS_relative_time_to_string (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
+ GNUNET_YES));
+}
+
+
+/**
+ * Cancel timeout
+ */
+static void
+stop_session_timeout (struct Session *s)
+{
+ GNUNET_assert (NULL != s);
+
+ if (GNUNET_SCHEDULER_NO_TASK != s->timeout_task)
+ {
+ GNUNET_SCHEDULER_cancel (s->timeout_task);
+ s->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Timeout stopped for session %p canceled\n",
+ s);
+ }
+}
+
+/**
+ * Function obtain the network type for a session
+ *
+ * @param cls closure ('struct Plugin*')
+ * @param session the session
+ * @return the network type in HBO or GNUNET_SYSERR
+ */
+static enum GNUNET_ATS_Network_Type
+tcp_get_network (void *cls,
+ struct Session *session)
+{
+ GNUNET_assert (NULL != session);
+ return ntohl (session->ats_address_network_type);
+}
+
+
/**
* Entry point for the plugin.
*
unsigned int i;
struct GNUNET_TIME_Relative idle_timeout;
int ret;
+ int ret_s;
struct sockaddr **addrs;
socklen_t *addrlens;
+
if (NULL == env->receive)
{
/* run in 'stub' mode (i.e. as part of gnunet-peerinfo), don't fully
return api;
}
+ GNUNET_assert (NULL != env->cfg);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-tcp",
"MAX_CONNECTIONS",
"ADVERTISED-PORT", &aport)) &&
(aport > 65535)))
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- _
- ("Require valid port number for service `%s' in configuration!\n"),
- "transport-tcp");
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ _
+ ("Require valid port number for service `%s' in configuration!\n"),
+ "transport-tcp");
return NULL;
}
if (aport == 0)
aport = 0;
if (bport != 0)
{
- service = GNUNET_SERVICE_start ("transport-tcp", env->cfg);
+ service = GNUNET_SERVICE_start ("transport-tcp", env->cfg, GNUNET_SERVICE_OPTION_NONE);
if (service == NULL)
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING, "tcp",
- _("Failed to start service.\n"));
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Failed to start service.\n"));
return NULL;
}
}
else
service = NULL;
+ /* Initialize my flags */
+ myoptions = 0;
+
plugin = GNUNET_malloc (sizeof (struct Plugin));
- plugin->sessionmap = GNUNET_CONTAINER_multihashmap_create(max_connections);
+ plugin->sessionmap = GNUNET_CONTAINER_multipeermap_create (max_connections, GNUNET_YES);
plugin->max_connections = max_connections;
+ plugin->cur_connections = 0;
plugin->open_port = bport;
plugin->adv_port = aport;
plugin->env = env;
plugin->lsock = NULL;
if ((service != NULL) &&
(GNUNET_SYSERR !=
- (ret =
+ (ret_s =
GNUNET_SERVICE_get_server_addresses ("transport-tcp", env->cfg, &addrs,
&addrlens))))
{
+ for (ret = ret_s-1; ret >= 0; ret--)
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ "Binding to address `%s'\n",
+ GNUNET_a2s (addrs[ret], addrlens[ret]));
plugin->nat =
- GNUNET_NAT_register (env->cfg, GNUNET_YES, aport, (unsigned int) ret,
+ GNUNET_NAT_register (env->cfg, GNUNET_YES, aport, (unsigned int) ret_s,
(const struct sockaddr **) addrs, addrlens,
&tcp_nat_port_map_callback,
&try_connection_reversal, plugin);
- while (ret > 0)
+ for (ret = ret_s -1; ret >= 0; ret--)
{
- ret--;
GNUNET_assert (addrs[ret] != NULL);
GNUNET_free (addrs[ret]);
}
}
else
{
- plugin->nat =
- GNUNET_NAT_register (env->cfg, GNUNET_YES, 0, 0, NULL, NULL, NULL,
- &try_connection_reversal, plugin);
+ plugin->nat = GNUNET_NAT_register (plugin->env->cfg,
+ GNUNET_YES, 0, 0, NULL, NULL, NULL,
+ &try_connection_reversal, plugin);
}
api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
api->cls = plugin;
api->check_address = &tcp_plugin_check_address;
api->address_to_string = &tcp_address_to_string;
api->string_to_address = &tcp_string_to_address;
+ api->get_network = &tcp_get_network;
plugin->service = service;
if (service != NULL)
{
GNUNET_CONFIGURATION_get_value_time (env->cfg, "transport-tcp",
"TIMEOUT", &idle_timeout))
{
- GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, "tcp",
- _("Failed to find option %s in section %s!\n"),
- "TIMEOUT", "transport-tcp");
+ GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+ "transport-tcp", "TIMEOUT");
if (plugin->nat != NULL)
GNUNET_NAT_unregister (plugin->nat);
GNUNET_free (plugin);
i < sizeof (my_handlers) / sizeof (struct GNUNET_SERVER_MessageHandler);
i++)
plugin->handlers[i].callback_cls = plugin;
+
GNUNET_SERVER_add_handlers (plugin->server, plugin->handlers);
GNUNET_SERVER_disconnect_notify (plugin->server, &disconnect_notify, plugin);
- plugin->nat_wait_conns = GNUNET_CONTAINER_multihashmap_create (16);
+ plugin->nat_wait_conns = GNUNET_CONTAINER_multipeermap_create (16, GNUNET_YES);
if (bport != 0)
- GNUNET_log_from (GNUNET_ERROR_TYPE_INFO, "tcp",
- _("TCP transport listening on port %llu\n"), bport);
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ _("TCP transport listening on port %llu\n"), bport);
else
- GNUNET_log_from (GNUNET_ERROR_TYPE_INFO, "tcp",
- _
- ("TCP transport not listening on any port (client only)\n"));
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ _
+ ("TCP transport not listening on any port (client only)\n"));
if (aport != bport)
- GNUNET_log_from (GNUNET_ERROR_TYPE_INFO, "tcp",
+ LOG (GNUNET_ERROR_TYPE_INFO,
_
("TCP transport advertises itself as being on port %llu\n"),
aport);
+ /* Initially set connections to 0 */
+ GNUNET_assert (NULL != plugin->env->stats);
+ GNUNET_STATISTICS_set (plugin->env->stats,
+ gettext_noop ("# TCP sessions active"), 0,
+ GNUNET_NO);
return api;
}
struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
struct Plugin *plugin = api->cls;
struct TCPProbeContext *tcp_probe;
+ struct PrettyPrinterContext *cur;
+ struct PrettyPrinterContext *next;
if (NULL == plugin)
{
GNUNET_free (api);
return NULL;
}
- GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "tcp", "Shutting down TCP plugin\n");
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down TCP plugin\n");
/* Removing leftover sessions */
- GNUNET_CONTAINER_multihashmap_iterate(plugin->sessionmap, &session_disconnect_it, NULL);
+ GNUNET_CONTAINER_multipeermap_iterate(plugin->sessionmap, &session_disconnect_it, NULL);
/* Removing leftover NAT sessions */
- GNUNET_CONTAINER_multihashmap_iterate(plugin->nat_wait_conns, &session_disconnect_it, NULL);
+ GNUNET_CONTAINER_multipeermap_iterate(plugin->nat_wait_conns, &session_disconnect_it, NULL);
+
+ next = ppc_dll_head;
+ for (cur = next; NULL != cur; cur = next)
+ {
+ next = cur->next;
+ GNUNET_CONTAINER_DLL_remove (ppc_dll_head, ppc_dll_tail, cur);
+ if (NULL != cur->resolver_handle)
+ GNUNET_RESOLVER_request_cancel (cur->resolver_handle);
+ GNUNET_SCHEDULER_cancel (cur->timeout_task);
+ GNUNET_free (cur);
+ GNUNET_break (0);
+ }
if (plugin->service != NULL)
GNUNET_SERVICE_stop (plugin->service);
{
GNUNET_CONTAINER_DLL_remove (plugin->probe_head, plugin->probe_tail,
tcp_probe);
- GNUNET_CONNECTION_destroy (tcp_probe->sock, GNUNET_NO);
+ GNUNET_CONNECTION_destroy (tcp_probe->sock);
GNUNET_free (tcp_probe);
}
- GNUNET_CONTAINER_multihashmap_destroy (plugin->nat_wait_conns);
- GNUNET_CONTAINER_multihashmap_destroy (plugin->sessionmap);
+ GNUNET_CONTAINER_multipeermap_destroy (plugin->nat_wait_conns);
+ GNUNET_CONTAINER_multipeermap_destroy (plugin->sessionmap);
GNUNET_free (plugin);
GNUNET_free (api);
return NULL;
projects / oweals / gnunet.git / blobdiff