/*
This file is part of GNUnet
- (C) 2010, 2011 Christian Grothoff (and other contributing authors)
+ (C) 2010-2013 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
#define LOG(kind,...) GNUNET_log_from (kind, "transport-udp", __VA_ARGS__)
+#define PLUGIN_NAME "udp"
/**
* Number of messages we can defragment in parallel. We only really
*/
#define UDP_MAX_SENDER_ADDRESSES_WITH_DEFRAG 128
+/**
+ * Running pretty printers: head
+ */
+static struct PrettyPrinterContext *ppc_dll_head;
+/**
+ * Running pretty printers: tail
+ */
+static struct PrettyPrinterContext *ppc_dll_tail;
/**
* Closure for 'append_port'.
*/
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;
};
+enum UDP_MessageType
+{
+ UNDEFINED = 0,
+ MSG_FRAGMENTED = 1,
+ MSG_FRAGMENTED_COMPLETE = 2,
+ MSG_UNFRAGMENTED = 3,
+ MSG_ACK = 4,
+ MSG_BEACON = 5
+};
+
struct Session
{
/**
*/
struct GNUNET_PeerIdentity target;
- struct FragmentationContext * frag_ctx;
+ struct UDP_FragmentationContext * frag_ctx;
/**
* Address of the other peer
/**
* expected delay for ACKs
*/
- struct GNUNET_TIME_Relative last_expected_delay;
+ struct GNUNET_TIME_Relative last_expected_ack_delay;
+
+ /**
+ * desired delay between UDP messages
+ */
+ struct GNUNET_TIME_Relative last_expected_msg_delay;
struct GNUNET_ATS_Information ats;
unsigned int rc;
int in_destroy;
+
+ int inbound;
};
{
struct Session *res;
const struct GNUNET_HELLO_Address *addr;
+ int inbound;
};
/**
- * Closure for 'process_inbound_tokenized_messages'
+ * Context to send fragmented messages
*/
-struct FragmentationContext
+struct UDP_FragmentationContext
{
- struct FragmentationContext * next;
- struct FragmentationContext * prev;
+ /**
+ * Next in linked list
+ */
+ struct UDP_FragmentationContext * next;
+
+ /**
+ * Previous in linked list
+ */
+ struct UDP_FragmentationContext * prev;
+ /**
+ * The plugin
+ */
struct Plugin * plugin;
+
+ /**
+ * Handle for GNUNET_FRAGMENT context
+ */
struct GNUNET_FRAGMENT_Context * frag;
+
+ /**
+ * The session this fragmentation context belongs to
+ */
struct Session * session;
/**
*/
void *cont_cls;
+ /**
+ * Message timeout
+ */
struct GNUNET_TIME_Absolute timeout;
- size_t bytes_to_send;
+ /**
+ * Payload size of original unfragmented message
+ */
+ size_t payload_size;
+
+ /**
+ * Bytes used to send all fragments on wire including UDP overhead
+ */
+ size_t on_wire_size;
+
+ unsigned int fragments_used;
+
};
-struct UDPMessageWrapper
+struct UDP_MessageWrapper
{
+ /**
+ * Session this message belongs to
+ */
struct Session *session;
- struct UDPMessageWrapper *prev;
- struct UDPMessageWrapper *next;
- char *udp;
/**
- * Function to call upon completion of the transmission.
+ * DLL of messages
+ * previous element
*/
- GNUNET_TRANSPORT_TransmitContinuation cont;
+ struct UDP_MessageWrapper *prev;
/**
- * Closure for 'cont'.
+ * DLL of messages
+ * previous element
*/
- void *cont_cls;
+ struct UDP_MessageWrapper *next;
- struct FragmentationContext *frag_ctx;
+ /**
+ * Message type
+ * According to UDP_MessageType
+ */
+ int msg_type;
+
+ /**
+ * Message with size msg_size including UDP specific overhead
+ */
+ char *msg_buf;
+ /**
+ * Size of UDP message to send including UDP specific overhead
+ */
size_t msg_size;
+ /**
+ * Payload size of original message
+ */
+ size_t payload_size;
+
+ /**
+ * Message timeout
+ */
struct GNUNET_TIME_Absolute timeout;
+
+ /**
+ * Function to call upon completion of the transmission.
+ */
+ GNUNET_TRANSPORT_TransmitContinuation cont;
+
+ /**
+ * Closure for 'cont'.
+ */
+ void *cont_cls;
+
+ /**
+ * Fragmentation context
+ * frag_ctx == NULL if transport <= MTU
+ * frag_ctx != NULL if transport > MTU
+ */
+ struct UDP_FragmentationContext *frag_ctx;
};
};
+/**
+ * Address options
+ */
+static uint32_t myoptions;
+
+
/**
* Encapsulation of all of the state of the plugin.
*/
/**
- * Start session timeout
+ * Cancel timeout
*/
static void
-start_session_timeout (struct Session *s);
+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);
+ }
+}
-/**
- * Increment session timeout due to activity
- */
-static void
-reschedule_session_timeout (struct Session *s);
/**
- * Cancel timeout
+ * (re)schedule select tasks for this plugin.
+ *
+ * @param plugin plugin to reschedule
*/
static void
-stop_session_timeout (struct Session *s);
+schedule_select (struct Plugin *plugin)
+{
+ struct GNUNET_TIME_Relative min_delay;
+ struct UDP_MessageWrapper *udpw;
+
+ if ((GNUNET_YES == plugin->enable_ipv4) && (NULL != plugin->sockv4))
+ {
+ /* Find a message ready to send:
+ * Flow delay from other peer is expired or not set (0) */
+ min_delay = GNUNET_TIME_UNIT_FOREVER_REL;
+ for (udpw = plugin->ipv4_queue_head; NULL != udpw; udpw = udpw->next)
+ min_delay = GNUNET_TIME_relative_min (min_delay,
+ GNUNET_TIME_absolute_get_remaining (udpw->session->flow_delay_from_other_peer));
+
+ if (plugin->select_task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel(plugin->select_task);
+
+ /* Schedule with:
+ * - write active set if message is ready
+ * - timeout minimum delay */
+ plugin->select_task =
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+ (0 == min_delay.rel_value_us) ? GNUNET_TIME_UNIT_FOREVER_REL : min_delay,
+ plugin->rs_v4,
+ (0 == min_delay.rel_value_us) ? plugin->ws_v4 : NULL,
+ &udp_plugin_select, plugin);
+ }
+ if ((GNUNET_YES == plugin->enable_ipv6) && (NULL != plugin->sockv6))
+ {
+ min_delay = GNUNET_TIME_UNIT_FOREVER_REL;
+ for (udpw = plugin->ipv6_queue_head; NULL != udpw; udpw = udpw->next)
+ min_delay = GNUNET_TIME_relative_min (min_delay,
+ GNUNET_TIME_absolute_get_remaining (udpw->session->flow_delay_from_other_peer));
+ if (GNUNET_SCHEDULER_NO_TASK != plugin->select_task_v6)
+ GNUNET_SCHEDULER_cancel(plugin->select_task_v6);
+ plugin->select_task_v6 =
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+ (0 == min_delay.rel_value_us) ? GNUNET_TIME_UNIT_FOREVER_REL : min_delay,
+ plugin->rs_v6,
+ (0 == min_delay.rel_value_us) ? plugin->ws_v6 : NULL,
+ &udp_plugin_select_v6, plugin);
+ }
+}
/**
const struct IPv6UdpAddress *t6;
int af;
uint16_t port;
+ uint32_t options;
- if (addrlen == sizeof (struct IPv6UdpAddress))
+ if ((NULL != addr) && (addrlen == sizeof (struct IPv6UdpAddress)))
{
t6 = addr;
af = AF_INET6;
+ options = ntohl (t6->options);
port = ntohs (t6->u6_port);
memcpy (&a6, &t6->ipv6_addr, sizeof (a6));
sb = &a6;
}
- else if (addrlen == sizeof (struct IPv4UdpAddress))
+ else if ((NULL != addr) && (addrlen == sizeof (struct IPv4UdpAddress)))
{
t4 = addr;
af = AF_INET;
+ options = ntohl (t4->options);
port = ntohs (t4->u4_port);
memcpy (&a4, &t4->ipv4_addr, sizeof (a4));
sb = &a4;
}
else
{
- GNUNET_break_op (0);
return NULL;
}
inet_ntop (af, sb, buf, INET6_ADDRSTRLEN);
- 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;
}
void **buf, size_t *added)
{
struct sockaddr_storage socket_address;
-
- if ((NULL == addr) || (0 == addrlen))
+ char *address;
+ char *plugin;
+ char *optionstr;
+ uint32_t options;
+
+ /* 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 (GNUNET_OK != GNUNET_STRINGS_to_address_ip (addr, strlen (addr),
- &socket_address))
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_to_address_ip (address, strlen (address),
+ &socket_address))
{
+ GNUNET_break (0);
+ GNUNET_free (plugin);
return GNUNET_SYSERR;
}
+ GNUNET_free (plugin);
+
switch (socket_address.ss_family)
{
case AF_INET:
struct IPv4UdpAddress *u4;
struct sockaddr_in *in4 = (struct sockaddr_in *) &socket_address;
u4 = GNUNET_malloc (sizeof (struct IPv4UdpAddress));
+ u4->options = htonl (options);
u4->ipv4_addr = in4->sin_addr.s_addr;
u4->u4_port = in4->sin_port;
*buf = u4;
struct IPv6UdpAddress *u6;
struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &socket_address;
u6 = GNUNET_malloc (sizeof (struct IPv6UdpAddress));
+ u6->options = htonl (options);
u6->ipv6_addr = in6->sin6_addr;
u6->u6_port = in6->sin6_port;
*buf = u6;
}
+static void
+ppc_cancel_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PrettyPrinterContext *ppc = cls;
+ /* GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "PPC %p was not removed!\n", ppc); */
+ 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;
-
+ /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "PPC callback: %p `%s'\n",ppc, hostname); */
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, "PPC %p was removed!\n", ppc); */
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);
}
-
/**
* Convert the transports address to a nice, human-readable
* format.
const struct IPv4UdpAddress *u4;
const struct IPv6UdpAddress *u6;
uint16_t port;
+ uint32_t options;
if (addrlen == sizeof (struct IPv6UdpAddress))
{
a6.sin6_port = u6->u6_port;
memcpy (&a6.sin6_addr, &u6->ipv6_addr, sizeof (struct in6_addr));
port = ntohs (u6->u6_port);
+ options = ntohl (u6->options);
sb = &a6;
sbs = sizeof (a6);
}
a4.sin_port = u4->u4_port;
a4.sin_addr.s_addr = u4->ipv4_addr;
port = ntohs (u4->u4_port);
+ options = ntohl (u4->options);
sb = &a4;
sbs = sizeof (a4);
}
- else if (0 == addrlen)
- {
- asc (asc_cls, "<inbound connection>");
- asc (asc_cls, NULL);
- return;
- }
else
{
/* invalid address */
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;
+ if (addrlen == sizeof (struct IPv6UdpAddress))
+ ppc->ipv6 = GNUNET_YES;
+ else
+ ppc->ipv6 = GNUNET_NO;
+ ppc->timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(timeout, 2),
+ &ppc_cancel_task, ppc);
+ GNUNET_CONTAINER_DLL_insert (ppc_dll_head, ppc_dll_tail, ppc);
+ /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "PPC %p was created!\n", ppc); */
+ ppc->resolver_handle = GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric, timeout, &append_port, ppc);
+
}
static void
-call_continuation (struct UDPMessageWrapper *udpw, int result)
+call_continuation (struct UDP_MessageWrapper *udpw, int result)
{
+ size_t overhead;
+
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Calling continuation for %u byte message to `%s' with result %s\n",
- udpw->msg_size, GNUNET_i2s (&udpw->session->target),
+ udpw->payload_size, GNUNET_i2s (&udpw->session->target),
(GNUNET_OK == result) ? "OK" : "SYSERR");
- if (NULL != udpw->cont)
- {
- udpw->cont (udpw->cont_cls, &udpw->session->target,result);
- }
+ if (udpw->msg_size >= udpw->payload_size)
+ overhead = udpw->msg_size - udpw->payload_size;
+ else
+ overhead = udpw->msg_size;
+
+ switch (result) {
+ case GNUNET_OK:
+ switch (udpw->msg_type) {
+ case MSG_UNFRAGMENTED:
+ if (NULL != udpw->cont)
+ {
+ /* Transport continuation */
+ udpw->cont (udpw->cont_cls, &udpw->session->target, result,
+ udpw->payload_size, udpw->msg_size);
+ }
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, messages, sent, success",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, bytes payload, sent, success",
+ udpw->payload_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, bytes overhead, sent, success",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes overhead, sent",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes payload, sent",
+ udpw->payload_size, GNUNET_NO);
+ break;
+ case MSG_FRAGMENTED_COMPLETE:
+ GNUNET_assert (NULL != udpw->frag_ctx);
+ if (udpw->frag_ctx->cont != NULL)
+ udpw->frag_ctx->cont (udpw->frag_ctx->cont_cls, &udpw->session->target, GNUNET_OK,
+ udpw->frag_ctx->payload_size, udpw->frag_ctx->on_wire_size);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, sent, success",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes payload, sent, success",
+ udpw->payload_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes overhead, sent, success",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes overhead, sent",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes payload, sent",
+ udpw->payload_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, pending",
+ -1, GNUNET_NO);
+ break;
+ case MSG_FRAGMENTED:
+ /* Fragmented message: enqueue next fragment */
+ if (NULL != udpw->cont)
+ udpw->cont (udpw->cont_cls, &udpw->session->target, result,
+ udpw->payload_size, udpw->msg_size);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, fragments, sent, success",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, fragments bytes, sent, success",
+ udpw->msg_size, GNUNET_NO);
+ break;
+ case MSG_ACK:
+ /* No continuation */
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, ACK msgs, messages, sent, success",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, ACK msgs, bytes overhead, sent, success",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes overhead, sent",
+ overhead, GNUNET_NO);
+ break;
+ case MSG_BEACON:
+ GNUNET_break (0);
+ break;
+ default:
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "ERROR: %u\n", udpw->msg_type);
+ GNUNET_break (0);
+ break;
+ }
+ break;
+ case GNUNET_SYSERR:
+ switch (udpw->msg_type) {
+ case MSG_UNFRAGMENTED:
+ /* Unfragmented message: failed to send */
+ if (NULL != udpw->cont)
+ udpw->cont (udpw->cont_cls, &udpw->session->target, result,
+ udpw->payload_size, overhead);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, messages, sent, failure",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, bytes payload, sent, failure",
+ udpw->payload_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, bytes overhead, sent, failure",
+ overhead, GNUNET_NO);
+ break;
+ case MSG_FRAGMENTED_COMPLETE:
+ GNUNET_assert (NULL != udpw->frag_ctx);
+ if (udpw->frag_ctx->cont != NULL)
+ udpw->frag_ctx->cont (udpw->frag_ctx->cont_cls, &udpw->session->target, GNUNET_SYSERR,
+ udpw->frag_ctx->payload_size, udpw->frag_ctx->on_wire_size);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, sent, failure",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes payload, sent, failure",
+ udpw->payload_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes payload, sent, failure",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes payload, sent, failure",
+ overhead, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, pending",
+ -1, GNUNET_NO);
+ break;
+ case MSG_FRAGMENTED:
+ GNUNET_assert (NULL != udpw->frag_ctx);
+ /* Fragmented message: failed to send */
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, fragments, sent, failure",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, fragments bytes, sent, failure",
+ udpw->msg_size, GNUNET_NO);
+ break;
+ case MSG_ACK:
+ /* ACK message: failed to send */
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, ACK msgs, messages, sent, failure",
+ 1, GNUNET_NO);
+ break;
+ case MSG_BEACON:
+ /* Beacon message: failed to send */
+ GNUNET_break (0);
+ break;
+ default:
+ GNUNET_break (0);
+ break;
+ }
+ break;
+ default:
+ GNUNET_break (0);
+ break;
+ }
}
if ((addrlen != sizeof (struct IPv4UdpAddress)) &&
(addrlen != sizeof (struct IPv6UdpAddress)))
{
- GNUNET_break_op (0);
return GNUNET_SYSERR;
}
if (addrlen == sizeof (struct IPv4UdpAddress))
static void
free_session (struct Session *s)
{
- if (s->frag_ctx != NULL)
+ if (NULL != s->frag_ctx)
{
- GNUNET_FRAGMENT_context_destroy(s->frag_ctx->frag);
+ GNUNET_FRAGMENT_context_destroy(s->frag_ctx->frag, NULL, NULL);
GNUNET_free (s->frag_ctx);
s->frag_ctx = NULL;
}
}
+static void
+dequeue (struct Plugin *plugin, struct UDP_MessageWrapper * udpw)
+{
+ if (plugin->bytes_in_buffer < udpw->msg_size)
+ GNUNET_break (0);
+ else
+ {
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes in buffers",
+ - (long long) udpw->msg_size, GNUNET_NO);
+ plugin->bytes_in_buffer -= udpw->msg_size;
+ }
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, msgs in buffers",
+ -1, GNUNET_NO);
+ if (udpw->session->addrlen == sizeof (struct sockaddr_in))
+ GNUNET_CONTAINER_DLL_remove (plugin->ipv4_queue_head,
+ plugin->ipv4_queue_tail, udpw);
+ if (udpw->session->addrlen == sizeof (struct sockaddr_in6))
+ GNUNET_CONTAINER_DLL_remove (plugin->ipv6_queue_head,
+ plugin->ipv6_queue_tail, udpw);
+}
+
+
+static void
+fragmented_message_done (struct UDP_FragmentationContext *fc, int result)
+{
+ struct UDP_MessageWrapper *udpw;
+ struct UDP_MessageWrapper *tmp;
+ struct UDP_MessageWrapper dummy;
+ struct Session *s = fc->session;
+
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "%p : Fragmented message removed with result %s\n",
+ fc,
+ (result == GNUNET_SYSERR) ? "FAIL" : "SUCCESS");
+
+ /* Call continuation for fragmented message */
+ memset (&dummy, 0, sizeof (dummy));
+ dummy.msg_type = MSG_FRAGMENTED_COMPLETE;
+ dummy.msg_size = s->frag_ctx->on_wire_size;
+ dummy.payload_size = s->frag_ctx->payload_size;
+ dummy.frag_ctx = s->frag_ctx;
+ dummy.cont = NULL;
+ dummy.cont_cls = NULL;
+ dummy.session = s;
+
+ call_continuation (&dummy, result);
+
+ /* Remove leftover fragments from queue */
+ if (s->addrlen == sizeof (struct sockaddr_in6))
+ {
+ udpw = plugin->ipv6_queue_head;
+ while (NULL != udpw)
+ {
+ tmp = udpw->next;
+ if ((udpw->frag_ctx != NULL) && (udpw->frag_ctx == s->frag_ctx))
+ {
+ dequeue (plugin, udpw);
+ call_continuation (udpw, GNUNET_SYSERR);
+ GNUNET_free (udpw);
+ }
+ udpw = tmp;
+ }
+ }
+ if (s->addrlen == sizeof (struct sockaddr_in))
+ {
+ udpw = plugin->ipv4_queue_head;
+ while (udpw!= NULL)
+ {
+ tmp = udpw->next;
+ if ((NULL != udpw->frag_ctx) && (udpw->frag_ctx == s->frag_ctx))
+ {
+ dequeue (plugin, udpw);
+ call_continuation (udpw, GNUNET_SYSERR);
+ GNUNET_free (udpw);
+ }
+ udpw = tmp;
+ }
+ }
+
+ /* Destroy fragmentation context */
+ GNUNET_FRAGMENT_context_destroy (fc->frag,
+ &s->last_expected_msg_delay,
+ &s->last_expected_ack_delay);
+ s->frag_ctx = NULL;
+ GNUNET_free (fc );
+}
+
/**
* Functions with this signature are called whenever we need
* to close a session due to a disconnect or failure to
static void
disconnect_session (struct Session *s)
{
- struct UDPMessageWrapper *udpw;
- struct UDPMessageWrapper *next;
+ struct UDP_MessageWrapper *udpw;
+ struct UDP_MessageWrapper *next;
GNUNET_assert (GNUNET_YES != s->in_destroy);
LOG (GNUNET_ERROR_TYPE_DEBUG,
s,
GNUNET_i2s (&s->target),
GNUNET_a2s (s->sock_addr, s->addrlen));
- stop_session_timeout(s);
+ stop_session_timeout (s);
+
+ if (NULL != s->frag_ctx)
+ {
+ /* Remove fragmented message due to disconnect */
+ fragmented_message_done (s->frag_ctx, GNUNET_SYSERR);
+ }
+
next = plugin->ipv4_queue_head;
while (NULL != (udpw = next))
{
next = udpw->next;
if (udpw->session == s)
{
- GNUNET_CONTAINER_DLL_remove(plugin->ipv4_queue_head, plugin->ipv4_queue_tail, udpw);
+ dequeue (plugin, udpw);
call_continuation(udpw, GNUNET_SYSERR);
GNUNET_free (udpw);
}
next = udpw->next;
if (udpw->session == s)
{
- GNUNET_CONTAINER_DLL_remove(plugin->ipv6_queue_head, plugin->ipv6_queue_tail, udpw);
+ dequeue (plugin, udpw);
call_continuation(udpw, GNUNET_SYSERR);
GNUNET_free (udpw);
}
- udpw = next;
}
plugin->env->session_end (plugin->env->cls, &s->target, s);
{
if (NULL != s->frag_ctx->cont)
{
- s->frag_ctx->cont (s->frag_ctx->cont_cls, &s->target, GNUNET_SYSERR);
+ s->frag_ctx->cont (s->frag_ctx->cont_cls, &s->target, GNUNET_SYSERR,
+ s->frag_ctx->payload_size, s->frag_ctx->on_wire_size);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Calling continuation for fragemented message to `%s' with result SYSERR\n",
GNUNET_i2s (&s->target));
}
GNUNET_assert (GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_remove (plugin->sessions,
- &s->target.hashPubKey,
+ GNUNET_CONTAINER_multipeermap_remove (plugin->sessions,
+ &s->target,
s));
GNUNET_STATISTICS_set(plugin->env->stats,
- "# UDP sessions active",
- GNUNET_CONTAINER_multihashmap_size(plugin->sessions),
+ "# UDP, sessions active",
+ GNUNET_CONTAINER_multipeermap_size(plugin->sessions),
GNUNET_NO);
if (s->rc > 0)
s->in_destroy = GNUNET_YES;
* @return GNUNET_OK (continue to iterate)
*/
static int
-disconnect_and_free_it (void *cls, const GNUNET_HashCode * key, void *value)
+disconnect_and_free_it (void *cls, const struct GNUNET_PeerIdentity * key, void *value)
{
disconnect_session(value);
return GNUNET_OK;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Disconnecting from peer `%s'\n", GNUNET_i2s (target));
/* Clean up sessions */
- GNUNET_CONTAINER_multihashmap_get_multiple (plugin->sessions, &target->hashPubKey, &disconnect_and_free_it, plugin);
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->sessions, target,
+ &disconnect_and_free_it, plugin);
}
-static struct Session *
-create_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target,
- const void *addr, size_t addrlen,
- GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
+/**
+ * Session was idle, so disconnect it
+ */
+static void
+session_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- struct Session *s;
- const struct IPv4UdpAddress *t4;
- const struct IPv6UdpAddress *t6;
- struct sockaddr_in *v4;
- struct sockaddr_in6 *v6;
- size_t len;
+ GNUNET_assert (NULL != cls);
+ struct Session *s = cls;
- switch (addrlen)
- {
- case sizeof (struct IPv4UdpAddress):
- if (NULL == plugin->sockv4)
- {
- return NULL;
- }
- t4 = addr;
- s = GNUNET_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in));
+ 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));
+}
+
+
+static struct Session *
+create_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target,
+ const void *addr, size_t addrlen,
+ GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
+{
+ struct Session *s;
+ const struct IPv4UdpAddress *t4;
+ const struct IPv6UdpAddress *t6;
+ struct sockaddr_in *v4;
+ struct sockaddr_in6 *v6;
+ size_t len;
+
+ if (NULL == addr)
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+
+ switch (addrlen)
+ {
+ case sizeof (struct IPv4UdpAddress):
+ if (NULL == plugin->sockv4)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Could not create session for peer `%s' address `%s': IPv4 is not enabled\n",
+ GNUNET_i2s(target),
+ udp_address_to_string(NULL, addr, addrlen));
+ return NULL;
+ }
+ t4 = addr;
+ s = GNUNET_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in));
len = sizeof (struct sockaddr_in);
v4 = (struct sockaddr_in *) &s[1];
v4->sin_family = AF_INET;
case sizeof (struct IPv6UdpAddress):
if (NULL == plugin->sockv6)
{
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ "Could not create session for peer `%s' address `%s': IPv6 is not enabled\n",
+ GNUNET_i2s(target),
+ udp_address_to_string(NULL, addr, addrlen));
return NULL;
}
t6 = addr;
- s =
- GNUNET_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in6));
+ s = GNUNET_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in6));
len = sizeof (struct sockaddr_in6);
v6 = (struct sockaddr_in6 *) &s[1];
v6->sin6_family = AF_INET6;
break;
default:
/* Must have a valid address to send to */
- GNUNET_break_op (0);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop
+ ("# requests to create session with invalid address"),
+ 1, GNUNET_NO);
return NULL;
}
s->addrlen = len;
s->target = *target;
s->sock_addr = (const struct sockaddr *) &s[1];
- s->last_expected_delay = GNUNET_TIME_UNIT_SECONDS;
- start_session_timeout(s);
+ s->last_expected_ack_delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 250);
+ s->last_expected_msg_delay = GNUNET_TIME_UNIT_MILLISECONDS;
+ s->flow_delay_from_other_peer = GNUNET_TIME_UNIT_ZERO_ABS;
+ s->flow_delay_for_other_peer = GNUNET_TIME_UNIT_ZERO;
+ s->inbound = GNUNET_NO;
+ start_session_timeout (s);
return s;
}
static int
session_cmp_it (void *cls,
- const GNUNET_HashCode * key,
+ const struct GNUNET_PeerIdentity * key,
void *value)
{
struct SessionCompareContext * cctx = cls;
socklen_t s_addrlen = s->addrlen;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Comparing address %s <-> %s\n",
- udp_address_to_string (NULL, (void *) address->address, address->address_length),
- GNUNET_a2s (s->sock_addr, s->addrlen));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Comparing address %s <-> %s\n",
+ udp_address_to_string (NULL, (void *) address->address,
+ address->address_length),
+ GNUNET_a2s (s->sock_addr, s->addrlen));
+ if (s->inbound != cctx->inbound)
+ return GNUNET_YES;
if ((address->address_length == sizeof (struct IPv4UdpAddress)) &&
(s_addrlen == sizeof (struct sockaddr_in)))
{
struct IPv4UdpAddress * u4 = NULL;
u4 = (struct IPv4UdpAddress *) address->address;
+ GNUNET_assert (NULL != u4);
const struct sockaddr_in *s4 = (const struct sockaddr_in *) s->sock_addr;
if ((0 == memcmp ((const void *) &u4->ipv4_addr,(const void *) &s4->sin_addr, sizeof (struct in_addr))) &&
(u4->u4_port == s4->sin_port))
{
struct IPv6UdpAddress * u6 = NULL;
u6 = (struct IPv6UdpAddress *) address->address;
+ GNUNET_assert (NULL != u6);
const struct sockaddr_in6 *s6 = (const struct sockaddr_in6 *) s->sock_addr;
if ((0 == memcmp (&u6->ipv6_addr, &s6->sin6_addr, sizeof (struct in6_addr))) &&
(u6->u6_port == s6->sin6_port))
}
+/**
+ * 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
+udp_get_network (void *cls,
+ struct Session *session)
+{
+ return ntohl (session->ats.value);
+}
+
+
/**
* Creates a new outbound session the transport service will use to send data to the
* peer
*
* @param cls the plugin
* @param address the address
+ * @param inbound look for inbound session
* @return the session or NULL of max connections exceeded
*/
static struct Session *
-udp_plugin_get_session (void *cls,
- const struct GNUNET_HELLO_Address *address)
+udp_plugin_lookup_session (void *cls,
+ const struct GNUNET_HELLO_Address *address,
+ int inbound)
{
- struct Session * s = NULL;
struct Plugin * plugin = cls;
struct IPv6UdpAddress * udp_a6;
struct IPv4UdpAddress * udp_a4;
((address->address_length != sizeof (struct IPv4UdpAddress)) &&
(address->address_length != sizeof (struct IPv6UdpAddress))))
{
- GNUNET_break (0);
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Trying to create session for address of unexpected length %u (should be %u or %u)\n"),
+ address->address_length,
+ sizeof (struct IPv4UdpAddress),
+ sizeof (struct IPv6UdpAddress));
return NULL;
}
struct SessionCompareContext cctx;
cctx.addr = address;
cctx.res = NULL;
+ cctx.inbound = inbound;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Looking for existing session for peer `%s' `%s' \n",
- GNUNET_i2s (&address->peer),
+ "Looking for existing session for peer `%s' `%s' \n",
+ GNUNET_i2s (&address->peer),
udp_address_to_string(NULL, address->address, address->address_length));
- GNUNET_CONTAINER_multihashmap_get_multiple(plugin->sessions, &address->peer.hashPubKey, session_cmp_it, &cctx);
+ GNUNET_CONTAINER_multipeermap_get_multiple(plugin->sessions, &address->peer, session_cmp_it, &cctx);
if (cctx.res != NULL)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Found existing session %p\n", cctx.res);
return cctx.res;
}
+ return NULL;
+}
+
+
+static struct Session *
+udp_plugin_create_session (void *cls,
+ const struct GNUNET_HELLO_Address *address,
+ int inbound)
+{
+ struct Session *s;
- /* otherwise create new */
s = create_session (plugin,
- &address->peer,
- address->address,
- address->address_length,
- NULL, NULL);
+ &address->peer,
+ address->address,
+ address->address_length,
+ NULL, NULL);
+ if (NULL == s)
+ return NULL; /* protocol not supported or address invalid */
+ s->inbound = inbound;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Creating new session %p for peer `%s' address `%s'\n",
+ "Creating new %s session %p for peer `%s' address `%s'\n",
+ (GNUNET_YES == s->inbound) ? "inbound" : "outbound",
s,
GNUNET_i2s(&address->peer),
udp_address_to_string(NULL,address->address,address->address_length));
GNUNET_assert (GNUNET_OK ==
- GNUNET_CONTAINER_multihashmap_put (plugin->sessions,
- &s->target.hashPubKey,
+ GNUNET_CONTAINER_multipeermap_put (plugin->sessions,
+ &s->target,
s,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
-
GNUNET_STATISTICS_set(plugin->env->stats,
- "# UDP sessions active",
- GNUNET_CONTAINER_multihashmap_size(plugin->sessions),
+ "# UDP, sessions active",
+ GNUNET_CONTAINER_multipeermap_size(plugin->sessions),
GNUNET_NO);
-
return s;
}
-static void
-enqueue (struct Plugin *plugin, struct UDPMessageWrapper * udpw)
+/**
+ * Creates a new outbound session the transport service will use to send data to the
+ * peer
+ *
+ * @param cls the plugin
+ * @param address the address
+ * @return the session or NULL of max connections exceeded
+ */
+static struct Session *
+udp_plugin_get_session (void *cls,
+ const struct GNUNET_HELLO_Address *address)
{
+ struct Session *s;
+
+ if (NULL == address)
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ if ((address->address_length != sizeof (struct IPv4UdpAddress)) &&
+ (address->address_length != sizeof (struct IPv6UdpAddress)))
+ return NULL;
+ /* otherwise create new */
+ if (NULL != (s = udp_plugin_lookup_session (cls, address, GNUNET_NO)))
+ return s;
+ return udp_plugin_create_session (cls, address, GNUNET_NO);
+}
+
+
+static void
+enqueue (struct Plugin *plugin, struct UDP_MessageWrapper * udpw)
+{
+ if (plugin->bytes_in_buffer + udpw->msg_size > INT64_MAX)
+ GNUNET_break (0);
+ else
+ {
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes in buffers",
+ udpw->msg_size, GNUNET_NO);
+ plugin->bytes_in_buffer += udpw->msg_size;
+ }
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, msgs in buffers",
+ 1, GNUNET_NO);
if (udpw->session->addrlen == sizeof (struct sockaddr_in))
- GNUNET_CONTAINER_DLL_insert(plugin->ipv4_queue_head, plugin->ipv4_queue_tail, udpw);
+ GNUNET_CONTAINER_DLL_insert (plugin->ipv4_queue_head,
+ plugin->ipv4_queue_tail, udpw);
if (udpw->session->addrlen == sizeof (struct sockaddr_in6))
- GNUNET_CONTAINER_DLL_insert(plugin->ipv6_queue_head, plugin->ipv6_queue_tail, udpw);
+ GNUNET_CONTAINER_DLL_insert (plugin->ipv6_queue_head,
+ plugin->ipv6_queue_tail, udpw);
}
+
/**
* Fragment message was transmitted via UDP, let fragmentation know
* to send the next fragment now.
* @param cls the 'struct UDPMessageWrapper' of the fragment
* @param target destination peer (ignored)
* @param result GNUNET_OK on success (ignored)
+ * @param payload bytes payload sent
+ * @param physical bytes physical sent
*/
static void
send_next_fragment (void *cls,
const struct GNUNET_PeerIdentity *target,
- int result)
+ int result, size_t payload, size_t physical)
{
- struct UDPMessageWrapper *udpw = cls;
+ struct UDP_MessageWrapper *udpw = cls;
- GNUNET_FRAGMENT_context_transmission_done (udpw->frag_ctx->frag);
+ GNUNET_FRAGMENT_context_transmission_done (udpw->frag_ctx->frag);
}
static void
enqueue_fragment (void *cls, const struct GNUNET_MessageHeader *msg)
{
- struct FragmentationContext *frag_ctx = cls;
+ struct UDP_FragmentationContext *frag_ctx = cls;
struct Plugin *plugin = frag_ctx->plugin;
- struct UDPMessageWrapper * udpw;
- struct Session *s;
+ struct UDP_MessageWrapper * udpw;
size_t msg_len = ntohs (msg->size);
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Enqueuing fragment with %u bytes %u\n", msg_len , sizeof (struct UDPMessageWrapper));
- udpw = GNUNET_malloc (sizeof (struct UDPMessageWrapper) + msg_len);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Enqueuing fragment with %u bytes\n", msg_len);
+ frag_ctx->fragments_used ++;
+ udpw = GNUNET_malloc (sizeof (struct UDP_MessageWrapper) + msg_len);
udpw->session = frag_ctx->session;
- s = udpw->session;
- udpw->udp = (char *) &udpw[1];
-
+ udpw->msg_buf = (char *) &udpw[1];
udpw->msg_size = msg_len;
+ udpw->payload_size = msg_len; /*FIXME: minus fragment overhead */
udpw->cont = &send_next_fragment;
udpw->cont_cls = udpw;
udpw->timeout = frag_ctx->timeout;
udpw->frag_ctx = frag_ctx;
- memcpy (udpw->udp, msg, msg_len);
+ udpw->msg_type = MSG_FRAGMENTED;
+ memcpy (udpw->msg_buf, msg, msg_len);
enqueue (plugin, udpw);
-
- if (s->addrlen == sizeof (struct sockaddr_in))
- {
- if (plugin->with_v4_ws == GNUNET_NO)
- {
- if (plugin->select_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel(plugin->select_task);
-
- plugin->select_task =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v4,
- plugin->ws_v4,
- &udp_plugin_select, plugin);
- plugin->with_v4_ws = GNUNET_YES;
- }
- }
- else if (s->addrlen == sizeof (struct sockaddr_in6))
- {
- if (plugin->with_v6_ws == GNUNET_NO)
- {
- if (plugin->select_task_v6 != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel(plugin->select_task_v6);
-
- plugin->select_task_v6 =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v6,
- plugin->ws_v6,
- &udp_plugin_select_v6, plugin);
- plugin->with_v6_ws = GNUNET_YES;
- }
- }
+ schedule_select (plugin);
}
GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
{
struct Plugin *plugin = cls;
- size_t mlen = msgbuf_size + sizeof (struct UDPMessage);
- struct UDPMessageWrapper * udpw;
+ size_t udpmlen = msgbuf_size + sizeof (struct UDPMessage);
+ struct UDP_FragmentationContext * frag_ctx;
+ struct UDP_MessageWrapper * udpw;
struct UDPMessage *udp;
- char mbuf[mlen];
+ char mbuf[udpmlen];
GNUNET_assert (plugin != NULL);
GNUNET_assert (s != NULL);
return GNUNET_SYSERR;
if ((s->addrlen == sizeof (struct sockaddr_in)) && (plugin->sockv4 == NULL))
return GNUNET_SYSERR;
- if (mlen >= GNUNET_SERVER_MAX_MESSAGE_SIZE)
+ if (udpmlen >= GNUNET_SERVER_MAX_MESSAGE_SIZE)
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
- if (GNUNET_YES != GNUNET_CONTAINER_multihashmap_contains_value(plugin->sessions, &s->target.hashPubKey, s))
+ if (GNUNET_YES != GNUNET_CONTAINER_multipeermap_contains_value(plugin->sessions, &s->target, s))
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
"UDP transmits %u-byte message to `%s' using address `%s'\n",
- mlen,
+ udpmlen,
GNUNET_i2s (&s->target),
GNUNET_a2s(s->sock_addr, s->addrlen));
-
+
+
/* Message */
udp = (struct UDPMessage *) mbuf;
- udp->header.size = htons (mlen);
+ udp->header.size = htons (udpmlen);
udp->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_MESSAGE);
udp->reserved = htonl (0);
udp->sender = *plugin->env->my_identity;
reschedule_session_timeout(s);
- if (mlen <= UDP_MTU)
+ if (udpmlen <= UDP_MTU)
{
- udpw = GNUNET_malloc (sizeof (struct UDPMessageWrapper) + mlen);
+ /* unfragmented message */
+ udpw = GNUNET_malloc (sizeof (struct UDP_MessageWrapper) + udpmlen);
udpw->session = s;
- udpw->udp = (char *) &udpw[1];
- udpw->msg_size = mlen;
+ udpw->msg_buf = (char *) &udpw[1];
+ udpw->msg_size = udpmlen; /* message size with UDP overhead */
+ udpw->payload_size = msgbuf_size; /* message size without UDP overhead */
udpw->timeout = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(), to);
udpw->cont = cont;
udpw->cont_cls = cont_cls;
udpw->frag_ctx = NULL;
- memcpy (udpw->udp, udp, sizeof (struct UDPMessage));
- memcpy (&udpw->udp[sizeof (struct UDPMessage)], msgbuf, msgbuf_size);
-
+ udpw->msg_type = MSG_UNFRAGMENTED;
+ memcpy (udpw->msg_buf, udp, sizeof (struct UDPMessage));
+ memcpy (&udpw->msg_buf[sizeof (struct UDPMessage)], msgbuf, msgbuf_size);
enqueue (plugin, udpw);
+
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, messages, attempt",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, bytes payload, attempt",
+ udpw->payload_size, GNUNET_NO);
}
else
{
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "UDP has to fragment message \n");
+ /* fragmented message */
if (s->frag_ctx != NULL)
return GNUNET_SYSERR;
memcpy (&udp[1], msgbuf, msgbuf_size);
- struct FragmentationContext * frag_ctx = GNUNET_malloc(sizeof (struct FragmentationContext));
-
+ frag_ctx = GNUNET_malloc (sizeof (struct UDP_FragmentationContext));
frag_ctx->plugin = plugin;
frag_ctx->session = s;
frag_ctx->cont = cont;
frag_ctx->cont_cls = cont_cls;
frag_ctx->timeout = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(), to);
- frag_ctx->bytes_to_send = mlen;
+ frag_ctx->payload_size = msgbuf_size; /* unfragmented message size without UDP overhead */
+ frag_ctx->on_wire_size = 0; /* bytes with UDP and fragmentation overhead */
frag_ctx->frag = GNUNET_FRAGMENT_context_create (plugin->env->stats,
- UDP_MTU,
- &plugin->tracker,
- s->last_expected_delay,
- &udp->header,
- &enqueue_fragment,
- frag_ctx);
-
+ UDP_MTU,
+ &plugin->tracker,
+ s->last_expected_msg_delay,
+ s->last_expected_ack_delay,
+ &udp->header,
+ &enqueue_fragment,
+ frag_ctx);
s->frag_ctx = frag_ctx;
- }
-
- if (s->addrlen == sizeof (struct sockaddr_in))
- {
- if (plugin->with_v4_ws == GNUNET_NO)
- {
- if (plugin->select_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel(plugin->select_task);
-
- plugin->select_task =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v4,
- plugin->ws_v4,
- &udp_plugin_select, plugin);
- plugin->with_v4_ws = GNUNET_YES;
- }
- }
- else if (s->addrlen == sizeof (struct sockaddr_in6))
- {
- if (plugin->with_v6_ws == GNUNET_NO)
- {
- if (plugin->select_task_v6 != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel(plugin->select_task_v6);
-
- plugin->select_task_v6 =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v6,
- plugin->ws_v6,
- &udp_plugin_select_v6, plugin);
- plugin->with_v6_ws = GNUNET_YES;
- }
- }
-
- return mlen;
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, pending",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, attempt",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes payload, attempt",
+ frag_ctx->payload_size, GNUNET_NO);
+ }
+ schedule_select (plugin);
+ return udpmlen;
}
void *arg;
size_t args;
+ 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 (&u4, 0, sizeof (u4));
+ u4.options = htonl(myoptions);
u4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
u4.u4_port = ((struct sockaddr_in *) addr)->sin_port;
+ if (0 == ((struct sockaddr_in *) addr)->sin_port)
+ return;
arg = &u4;
- args = sizeof (u4);
+ args = sizeof (struct IPv4UdpAddress);
break;
case AF_INET6:
GNUNET_assert (addrlen == sizeof (struct sockaddr_in6));
+ memset (&u4, 0, sizeof (u4));
+ u6.options = htonl(myoptions);
+ if (0 == ((struct sockaddr_in6 *) addr)->sin6_port)
+ return;
memcpy (&u6.ipv6_addr, &((struct sockaddr_in6 *) addr)->sin6_addr,
sizeof (struct in6_addr));
u6.u6_port = ((struct sockaddr_in6 *) addr)->sin6_port;
arg = &u6;
- args = sizeof (u6);
+ args = sizeof (struct IPv6UdpAddress);
break;
default:
GNUNET_break (0);
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, "udp");
}
{
struct Plugin *plugin = cls;
struct SourceInformation *si = client;
- struct GNUNET_ATS_Information ats[2];
struct GNUNET_TIME_Relative delay;
GNUNET_assert (si->session != NULL);
if (GNUNET_YES == si->session->in_destroy)
return GNUNET_OK;
/* setup ATS */
- ats[0].type = htonl (GNUNET_ATS_QUALITY_NET_DISTANCE);
- ats[0].value = htonl (1);
- ats[1] = si->session->ats;
- GNUNET_break (ntohl(ats[1].value) != GNUNET_ATS_NET_UNSPECIFIED);
+ GNUNET_break (ntohl(si->session->ats.value) != GNUNET_ATS_NET_UNSPECIFIED);
delay = plugin->env->receive (plugin->env->cls,
&si->sender,
hdr,
- (const struct GNUNET_ATS_Information *) &ats, 2,
- NULL,
- si->arg,
- si->args);
+ si->session,
+ (GNUNET_YES == si->session->inbound) ? NULL : si->arg,
+ (GNUNET_YES == si->session->inbound) ? 0 : si->args);
+
+ plugin->env->update_address_metrics (plugin->env->cls,
+ &si->sender,
+ (GNUNET_YES == si->session->inbound) ? NULL : si->arg,
+ (GNUNET_YES == si->session->inbound) ? 0 : si->args,
+ si->session,
+ &si->session->ats, 1);
+
si->session->flow_delay_for_other_peer = delay;
reschedule_session_timeout(si->session);
return GNUNET_OK;
{
case AF_INET:
GNUNET_assert (sender_addr_len == sizeof (struct sockaddr_in));
+ memset (&u4, 0, sizeof (u4));
+ u6.options = htonl (0);
u4.ipv4_addr = ((struct sockaddr_in *) sender_addr)->sin_addr.s_addr;
u4.u4_port = ((struct sockaddr_in *) sender_addr)->sin_port;
arg = &u4;
break;
case AF_INET6:
GNUNET_assert (sender_addr_len == sizeof (struct sockaddr_in6));
+ memset (&u6, 0, sizeof (u6));
+ u6.options = htonl (0);
u6.ipv6_addr = ((struct sockaddr_in6 *) sender_addr)->sin6_addr;
u6.u6_port = ((struct sockaddr_in6 *) sender_addr)->sin6_port;
arg = &u6;
GNUNET_a2s (sender_addr, sender_addr_len));
struct GNUNET_HELLO_Address * address = GNUNET_HELLO_address_allocate(&msg->sender, "udp", arg, args);
- s = udp_plugin_get_session(plugin, address);
+ if (NULL == (s = udp_plugin_lookup_session (plugin, address, GNUNET_YES)))
+ {
+ s = udp_plugin_create_session (plugin, address, GNUNET_YES);
+ plugin->env->session_start (NULL, &address->peer, PLUGIN_NAME,
+ address->address, address->address_length, s, NULL, 0);
+ }
GNUNET_free (address);
/* iterate over all embedded messages */
struct LookupContext
{
- const struct sockaddr * addr;
-
struct Session *res;
+ const struct sockaddr * addr;
+
size_t addrlen;
+
+ int must_have_frag_ctx;
};
static int
-lookup_session_by_addr_it (void *cls, const GNUNET_HashCode * key, void *value)
+lookup_session_by_addr_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
{
struct LookupContext *l_ctx = cls;
struct Session * s = value;
+ if ((GNUNET_YES == l_ctx->must_have_frag_ctx) && (NULL == s->frag_ctx))
+ return GNUNET_YES;
+
+ /*
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Comparing session: have %s %s %p<-> want %s\n",
+ GNUNET_a2s(s->sock_addr, s->addrlen),
+ (GNUNET_YES == s->inbound) ? "inbound" : "outbound",
+ s->frag_ctx,
+ GNUNET_a2s(l_ctx->addr, l_ctx->addrlen));
+ */
if ((s->addrlen == l_ctx->addrlen) &&
(0 == memcmp (s->sock_addr, l_ctx->addr, s->addrlen)))
{
l_ctx->res = s;
- return GNUNET_NO;
+ return GNUNET_YES;
}
return GNUNET_YES;
}
size_t msize = sizeof (struct UDP_ACK_Message) + ntohs (msg->size);
struct UDP_ACK_Message *udp_ack;
uint32_t delay = 0;
- struct UDPMessageWrapper *udpw;
+ struct UDP_MessageWrapper *udpw;
struct Session *s;
-
struct LookupContext l_ctx;
+
l_ctx.addr = rc->src_addr;
l_ctx.addrlen = rc->addr_len;
l_ctx.res = NULL;
- GNUNET_CONTAINER_multihashmap_iterate (rc->plugin->sessions,
+ l_ctx.must_have_frag_ctx = GNUNET_NO;
+ GNUNET_CONTAINER_multipeermap_iterate (rc->plugin->sessions,
&lookup_session_by_addr_it,
&l_ctx);
s = l_ctx.res;
if (NULL == s)
return;
- if (s->flow_delay_for_other_peer.rel_value <= UINT32_MAX)
- delay = s->flow_delay_for_other_peer.rel_value;
+ if (s->flow_delay_for_other_peer.rel_value_us <= UINT32_MAX)
+ delay = s->flow_delay_for_other_peer.rel_value_us;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Sending ACK to `%s' including delay of %u ms\n",
+ "Sending ACK to `%s' including delay of %s\n",
GNUNET_a2s (rc->src_addr,
(rc->src_addr->sa_family ==
AF_INET) ? sizeof (struct sockaddr_in) : sizeof (struct
sockaddr_in6)),
- delay);
- udpw = GNUNET_malloc (sizeof (struct UDPMessageWrapper) + msize);
+ GNUNET_STRINGS_relative_time_to_string (s->flow_delay_for_other_peer,
+ GNUNET_YES));
+ udpw = GNUNET_malloc (sizeof (struct UDP_MessageWrapper) + msize);
udpw->msg_size = msize;
+ udpw->payload_size = 0;
udpw->session = s;
udpw->timeout = GNUNET_TIME_UNIT_FOREVER_ABS;
- udpw->udp = (char *)&udpw[1];
- udp_ack = (struct UDP_ACK_Message *) udpw->udp;
+ udpw->msg_buf = (char *)&udpw[1];
+ udpw->msg_type = MSG_ACK;
+ udp_ack = (struct UDP_ACK_Message *) udpw->msg_buf;
udp_ack->header.size = htons ((uint16_t) msize);
udp_ack->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_ACK);
udp_ack->delay = htonl (delay);
udp_ack->sender = *rc->plugin->env->my_identity;
memcpy (&udp_ack[1], msg, ntohs (msg->size));
-
enqueue (rc->plugin, udpw);
}
-static void
+static void
read_process_msg (struct Plugin *plugin,
const struct GNUNET_MessageHeader *msg,
- const char *addr,
+ const struct sockaddr *addr,
socklen_t fromlen)
{
if (ntohs (msg->size) < sizeof (struct UDPMessage))
return;
}
process_udp_message (plugin, (const struct UDPMessage *) msg,
- (const struct sockaddr *) addr, fromlen);
+ addr, fromlen);
}
-static void
+static void
read_process_ack (struct Plugin *plugin,
const struct GNUNET_MessageHeader *msg,
- char *addr,
+ const struct sockaddr *addr,
socklen_t fromlen)
{
const struct GNUNET_MessageHeader *ack;
l_ctx.addr = (const struct sockaddr *) addr;
l_ctx.addrlen = fromlen;
l_ctx.res = NULL;
- GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
- &lookup_session_by_addr_it,
- &l_ctx);
+ l_ctx.must_have_frag_ctx = GNUNET_YES;
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->sessions,
+ &lookup_session_by_addr_it,
+ &l_ctx);
s = l_ctx.res;
-
- if ((s == NULL) || (s->frag_ctx == NULL))
+ if ((NULL == s) || (NULL == s->frag_ctx))
+ {
return;
+ }
+
- flow_delay.rel_value = (uint64_t) ntohl (udp_ack->delay);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "We received a sending delay of %llu\n",
- flow_delay.rel_value);
+ flow_delay.rel_value_us = (uint64_t) ntohl (udp_ack->delay);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "We received a sending delay of %s\n",
+ GNUNET_STRINGS_relative_time_to_string (flow_delay,
+ GNUNET_YES));
s->flow_delay_from_other_peer =
GNUNET_TIME_relative_to_absolute (flow_delay);
return;
}
+ if (0 != memcmp (&l_ctx.res->target, &udp_ack->sender, sizeof (struct GNUNET_PeerIdentity)))
+ GNUNET_break (0);
if (GNUNET_OK != GNUNET_FRAGMENT_process_ack (s->frag_ctx->frag, ack))
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"UDP processes %u-byte acknowledgement from `%s' at `%s'\n",
(unsigned int) ntohs (msg->size), GNUNET_i2s (&udp_ack->sender),
- GNUNET_a2s ((const struct sockaddr *) addr, fromlen));
+ GNUNET_a2s (addr, fromlen));
+ /* Expect more ACKs to arrive */
return;
}
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "FULL MESSAGE ACKed\n",
+ "Message full ACK'ed\n",
(unsigned int) ntohs (msg->size), GNUNET_i2s (&udp_ack->sender),
- GNUNET_a2s ((const struct sockaddr *) addr, fromlen));
- s->last_expected_delay = GNUNET_FRAGMENT_context_destroy (s->frag_ctx->frag);
-
- struct UDPMessageWrapper * udpw;
- struct UDPMessageWrapper * tmp;
- if (s->addrlen == sizeof (struct sockaddr_in6))
- {
- udpw = plugin->ipv6_queue_head;
- while (NULL != udpw)
- {
- tmp = udpw->next;
- if ((udpw->frag_ctx != NULL) && (udpw->frag_ctx == s->frag_ctx))
- {
- GNUNET_CONTAINER_DLL_remove(plugin->ipv6_queue_head, plugin->ipv6_queue_tail, udpw);
- GNUNET_free (udpw);
- }
- udpw = tmp;
- }
- }
- if (s->addrlen == sizeof (struct sockaddr_in))
- {
- udpw = plugin->ipv4_queue_head;
- while (udpw!= NULL)
- {
- tmp = udpw->next;
- if ((udpw->frag_ctx != NULL) && (udpw->frag_ctx == s->frag_ctx))
- {
- GNUNET_CONTAINER_DLL_remove(plugin->ipv4_queue_head, plugin->ipv4_queue_tail, udpw);
- GNUNET_free (udpw);
- }
- udpw = tmp;
- }
- }
+ GNUNET_a2s (addr, fromlen));
- if (s->frag_ctx->cont != NULL)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Calling continuation for fragmented message to `%s' with result %s\n",
- GNUNET_i2s (&s->target), "OK");
- s->frag_ctx->cont (s->frag_ctx->cont_cls, &udp_ack->sender, GNUNET_OK);
- }
-
- GNUNET_free (s->frag_ctx);
- s->frag_ctx = NULL;
+ /* Remove fragmented message after successful sending */
+ fragmented_message_done (s->frag_ctx, GNUNET_OK);
}
-static void
+static void
read_process_fragment (struct Plugin *plugin,
const struct GNUNET_MessageHeader *msg,
- char *addr,
+ const struct sockaddr *addr,
socklen_t fromlen)
{
struct DefragContext *d_ctx;
struct FindReceiveContext frc;
frc.rc = NULL;
- frc.addr = (const struct sockaddr *) addr;
+ frc.addr = addr;
frc.addr_len = fromlen;
LOG (GNUNET_ERROR_TYPE_DEBUG, "UDP processes %u-byte fragment from `%s'\n",
(unsigned int) ntohs (msg->size),
- GNUNET_a2s ((const struct sockaddr *) addr, fromlen));
+ GNUNET_a2s (addr, fromlen));
/* Lookup existing receive context for this address */
GNUNET_CONTAINER_heap_iterate (plugin->defrag_ctxs,
&find_receive_context,
d_ctx->hnode =
GNUNET_CONTAINER_heap_insert (plugin->defrag_ctxs, d_ctx,
(GNUNET_CONTAINER_HeapCostType)
- now.abs_value);
- LOG (GNUNET_ERROR_TYPE_DEBUG,
+ now.abs_value_us);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
"Created new defragmentation context for %u-byte fragment from `%s'\n",
(unsigned int) ntohs (msg->size),
- GNUNET_a2s ((const struct sockaddr *) addr, fromlen));
+ GNUNET_a2s (addr, fromlen));
}
else
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Found existing defragmentation context for %u-byte fragment from `%s'\n",
(unsigned int) ntohs (msg->size),
- GNUNET_a2s ((const struct sockaddr *) addr, fromlen));
+ GNUNET_a2s (addr, fromlen));
}
if (GNUNET_OK == GNUNET_DEFRAGMENT_process_fragment (d_ctx->defrag, msg))
/* keep this 'rc' from expiring */
GNUNET_CONTAINER_heap_update_cost (plugin->defrag_ctxs, d_ctx->hnode,
(GNUNET_CONTAINER_HeapCostType)
- now.abs_value);
+ now.abs_value_us);
}
if (GNUNET_CONTAINER_heap_get_size (plugin->defrag_ctxs) >
UDP_MAX_SENDER_ADDRESSES_WITH_DEFRAG)
udp_select_read (struct Plugin *plugin, struct GNUNET_NETWORK_Handle *rsock)
{
socklen_t fromlen;
- char addr[32];
+ struct sockaddr_storage addr;
char buf[65536] GNUNET_ALIGN;
ssize_t size;
const struct GNUNET_MessageHeader *msg;
fromlen = sizeof (addr);
memset (&addr, 0, sizeof (addr));
size = GNUNET_NETWORK_socket_recvfrom (rsock, buf, sizeof (buf),
- (struct sockaddr *) &addr, &fromlen);
+ (struct sockaddr *) &addr, &fromlen);
#if MINGW
/* On SOCK_DGRAM UDP sockets recvfrom might fail with a
- * WSAECONNRESET error to indicate that previous sendto() (???)
+ * WSAECONNRESET error to indicate that previous sendto() (yes, sendto!)
* on this socket has failed.
+ * Quote from MSDN:
+ * WSAECONNRESET - The virtual circuit was reset by the remote side
+ * executing a hard or abortive close. The application should close
+ * the socket; it is no longer usable. On a UDP-datagram socket this
+ * error indicates a previous send operation resulted in an ICMP Port
+ * Unreachable message.
*/
if ( (-1 == size) && (ECONNRESET == errno) )
return;
#endif
- if ( (-1 == size) || (size < sizeof (struct GNUNET_MessageHeader)))
+ if (-1 == size)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "UDP failed to receive data: %s\n", STRERROR (errno));
+ /* Connection failure or something. Not a protocol violation. */
+ return;
+ }
+ if (size < sizeof (struct GNUNET_MessageHeader))
{
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "UDP got %u bytes, which is not enough for a GNUnet message header\n",
+ (unsigned int) size);
+ /* _MAY_ be a connection failure (got partial message) */
+ /* But it _MAY_ also be that the other side uses non-GNUnet protocol. */
GNUNET_break_op (0);
return;
}
msg = (const struct GNUNET_MessageHeader *) buf;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "UDP received %u-byte message from `%s' type %i\n", (unsigned int) size,
- GNUNET_a2s ((const struct sockaddr *) addr, fromlen), ntohs (msg->type));
+ "UDP received %u-byte message from `%s' type %u\n",
+ (unsigned int) size,
+ GNUNET_a2s ((const struct sockaddr *) &addr, fromlen),
+ ntohs (msg->type));
if (size != ntohs (msg->size))
{
return;
}
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes, received",
+ size, GNUNET_NO);
+
switch (ntohs (msg->type))
{
case GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON:
- udp_broadcast_receive (plugin, &buf, size, addr, fromlen);
+ udp_broadcast_receive (plugin, buf, size,
+ (const struct sockaddr *) &addr, fromlen);
return;
-
case GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_MESSAGE:
- read_process_msg (plugin, msg, addr, fromlen);
+ read_process_msg (plugin, msg,
+ (const struct sockaddr *) &addr, fromlen);
return;
-
case GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_ACK:
- read_process_ack (plugin, msg, addr, fromlen);
+ read_process_ack (plugin, msg,
+ (const struct sockaddr *) &addr, fromlen);
return;
-
case GNUNET_MESSAGE_TYPE_FRAGMENT:
- read_process_fragment (plugin, msg, addr, fromlen);
+ read_process_fragment (plugin, msg,
+ (const struct sockaddr *) &addr, fromlen);
return;
-
default:
GNUNET_break_op (0);
return;
}
-static size_t
-udp_select_send (struct Plugin *plugin, struct GNUNET_NETWORK_Handle *sock)
+static struct UDP_MessageWrapper *
+remove_timeout_messages_and_select (struct UDP_MessageWrapper *head,
+ struct GNUNET_NETWORK_Handle *sock)
{
- ssize_t sent;
- size_t slen;
- struct GNUNET_TIME_Absolute max;
- struct UDPMessageWrapper *udpw = NULL;
-
- if (sock == plugin->sockv4)
- {
- udpw = plugin->ipv4_queue_head;
- }
- else if (sock == plugin->sockv6)
- {
- udpw = plugin->ipv6_queue_head;
- }
- else
- {
- GNUNET_break (0);
- return 0;
- }
-
- const struct sockaddr * sa = udpw->session->sock_addr;
- slen = udpw->session->addrlen;
-
- max = GNUNET_TIME_absolute_max(udpw->timeout, GNUNET_TIME_absolute_get());
+ struct UDP_MessageWrapper *udpw = NULL;
+ struct GNUNET_TIME_Relative remaining;
+ udpw = head;
while (udpw != NULL)
{
- if (max.abs_value != udpw->timeout.abs_value)
+ /* Find messages with timeout */
+ remaining = GNUNET_TIME_absolute_get_remaining (udpw->timeout);
+ if (GNUNET_TIME_UNIT_ZERO.rel_value_us == remaining.rel_value_us)
{
/* Message timed out */
- call_continuation(udpw, GNUNET_SYSERR);
- if (udpw->frag_ctx != NULL)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Fragmented message for peer `%s' with size %u timed out\n",
- GNUNET_i2s(&udpw->session->target), udpw->frag_ctx->bytes_to_send);
- udpw->session->last_expected_delay = GNUNET_FRAGMENT_context_destroy(udpw->frag_ctx->frag);
- GNUNET_free (udpw->frag_ctx);
- udpw->session->frag_ctx = NULL;
- }
- else
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Message for peer `%s' with size %u timed out\n",
- GNUNET_i2s(&udpw->session->target), udpw->msg_size);
+ switch (udpw->msg_type) {
+ case MSG_UNFRAGMENTED:
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes, sent, timeout",
+ udpw->msg_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, messages, sent, timeout",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, messages, sent, timeout",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, unfragmented msgs, bytes, sent, timeout",
+ udpw->payload_size, GNUNET_NO);
+ /* Not fragmented message */
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Message for peer `%s' with size %u timed out\n",
+ GNUNET_i2s(&udpw->session->target), udpw->payload_size);
+ call_continuation (udpw, GNUNET_SYSERR);
+ /* Remove message */
+ dequeue (plugin, udpw);
+ GNUNET_free (udpw);
+ break;
+ case MSG_FRAGMENTED:
+ /* Fragmented message */
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes, sent, timeout",
+ udpw->frag_ctx->on_wire_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, messages, sent, timeout",
+ 1, GNUNET_NO);
+ call_continuation (udpw, GNUNET_SYSERR);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Fragment for message for peer `%s' with size %u timed out\n",
+ GNUNET_i2s(&udpw->session->target), udpw->frag_ctx->payload_size);
+
+
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, messages, sent, timeout",
+ 1, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, fragmented msgs, bytes, sent, timeout",
+ udpw->frag_ctx->payload_size, GNUNET_NO);
+ /* Remove fragmented message due to timeout */
+ fragmented_message_done (udpw->frag_ctx, GNUNET_SYSERR);
+ break;
+ case MSG_ACK:
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes, sent, timeout",
+ udpw->msg_size, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, messages, sent, timeout",
+ 1, GNUNET_NO);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "ACK Message for peer `%s' with size %u timed out\n",
+ GNUNET_i2s(&udpw->session->target), udpw->payload_size);
+ call_continuation (udpw, GNUNET_SYSERR);
+ dequeue (plugin, udpw);
+ GNUNET_free (udpw);
+ break;
+ default:
+ break;
}
-
if (sock == plugin->sockv4)
- {
- GNUNET_CONTAINER_DLL_remove(plugin->ipv4_queue_head, plugin->ipv4_queue_tail, udpw);
- GNUNET_free (udpw);
udpw = plugin->ipv4_queue_head;
- }
else if (sock == plugin->sockv6)
- {
- GNUNET_CONTAINER_DLL_remove(plugin->ipv6_queue_head, plugin->ipv6_queue_tail, udpw);
- GNUNET_free (udpw);
udpw = plugin->ipv6_queue_head;
+ else
+ {
+ GNUNET_break (0); /* should never happen */
+ udpw = NULL;
}
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# messages dismissed due to timeout",
+ 1, GNUNET_NO);
}
else
{
- struct GNUNET_TIME_Relative delta = GNUNET_TIME_absolute_get_remaining (udpw->session->flow_delay_from_other_peer);
- if (delta.rel_value == 0)
+ /* Message did not time out, check flow delay */
+ remaining = GNUNET_TIME_absolute_get_remaining (udpw->session->flow_delay_from_other_peer);
+ if (GNUNET_TIME_UNIT_ZERO.rel_value_us == remaining.rel_value_us)
{
/* this message is not delayed */
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Message for peer `%s' (%u bytes) is not delayed \n",
- GNUNET_i2s(&udpw->session->target), udpw->msg_size);
- break;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Message for peer `%s' (%u bytes) is not delayed \n",
+ GNUNET_i2s(&udpw->session->target), udpw->payload_size);
+ break; /* Found message to send, break */
}
else
{
- /* this message is delayed, try next */
+ /* Message is delayed, try next */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Message for peer `%s' (%u bytes) is delayed for %llu \n",
- GNUNET_i2s(&udpw->session->target), udpw->msg_size,
- delta);
+ "Message for peer `%s' (%u bytes) is delayed for %s\n",
+ GNUNET_i2s(&udpw->session->target), udpw->payload_size,
+ GNUNET_STRINGS_relative_time_to_string (remaining,
+ GNUNET_YES));
udpw = udpw->next;
}
}
}
+ return udpw;
+}
- if (udpw == NULL)
- {
- /* No message left */
- return 0;
- }
- sent = GNUNET_NETWORK_socket_sendto (sock, udpw->udp, udpw->msg_size, sa, slen);
+static void
+analyze_send_error (struct Plugin *plugin,
+ const struct sockaddr * sa,
+ socklen_t slen,
+ int error)
+{
+ static int network_down_error;
+ struct GNUNET_ATS_Information type;
+
+ type = plugin->env->get_address_type (plugin->env->cls,sa, slen);
+ if (((GNUNET_ATS_NET_LAN == ntohl(type.value)) || (GNUNET_ATS_NET_WAN == ntohl(type.value))) &&
+ ((ENETUNREACH == errno) || (ENETDOWN == errno)))
+ {
+ if ((network_down_error == GNUNET_NO) && (slen == sizeof (struct sockaddr_in)))
+ {
+ /* IPv4: "Network unreachable" or "Network down"
+ *
+ * This indicates we do not have connectivity
+ */
+ LOG (GNUNET_ERROR_TYPE_WARNING | GNUNET_ERROR_TYPE_BULK,
+ _("UDP could not transmit message to `%s': "
+ "Network seems down, please check your network configuration\n"),
+ GNUNET_a2s (sa, slen));
+ }
+ if ((network_down_error == GNUNET_NO) && (slen == sizeof (struct sockaddr_in6)))
+ {
+ /* IPv6: "Network unreachable" or "Network down"
+ *
+ * This indicates that this system is IPv6 enabled, but does not
+ * have a valid global IPv6 address assigned or we do not have
+ * connectivity
+ */
+
+ LOG (GNUNET_ERROR_TYPE_WARNING | GNUNET_ERROR_TYPE_BULK,
+ _("UDP could not transmit IPv6 message! "
+ "Please check your network configuration and disable IPv6 if your "
+ "connection does not have a global IPv6 address\n"));
+ }
+ }
+ else
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "UDP could not transmit message to `%s': `%s'\n",
+ GNUNET_a2s (sa, slen), STRERROR (error));
+ }
+}
+
+
+static size_t
+udp_select_send (struct Plugin *plugin, struct GNUNET_NETWORK_Handle *sock)
+{
+ const struct sockaddr * sa;
+ ssize_t sent;
+ socklen_t slen;
+
+ struct UDP_MessageWrapper *udpw = NULL;
+
+ /* Find message to send */
+ udpw = remove_timeout_messages_and_select ((sock == plugin->sockv4) ? plugin->ipv4_queue_head : plugin->ipv6_queue_head,
+ sock);
+ if (NULL == udpw)
+ return 0; /* No message to send */
+
+ sa = udpw->session->sock_addr;
+ slen = udpw->session->addrlen;
+
+ sent = GNUNET_NETWORK_socket_sendto (sock, udpw->msg_buf, udpw->msg_size, sa, slen);
if (GNUNET_SYSERR == sent)
{
- const struct GNUNET_ATS_Information type = plugin->env->get_address_type
- (plugin->env->cls,sa, slen);
-
- if ((GNUNET_ATS_NET_WAN == type.value) &&
- ((ENETUNREACH == errno) || (ENETDOWN == errno)))
- {
- /* "Network unreachable" or "Network down" */
- /*
- * This indicates that this system is IPv6 enabled, but does not
- * have a valid global IPv6 address assigned
- */
- LOG (GNUNET_ERROR_TYPE_ERROR | GNUNET_ERROR_TYPE_BULK,
- _("UDP could not message to `%s': `%s'. "
- "Please check your network configuration and disable IPv6 if your "
- "connection does not have a global IPv6 address\n"),
- GNUNET_a2s (sa, slen),
- STRERROR (errno));
- }
- else
- {
- LOG (GNUNET_ERROR_TYPE_ERROR,
- "UDP could not transmit %u-byte message to `%s': `%s'\n",
- (unsigned int) (udpw->msg_size), GNUNET_a2s (sa, slen),
- STRERROR (errno));
- }
+ /* Failure */
+ analyze_send_error (plugin, sa, slen, errno);
call_continuation(udpw, GNUNET_SYSERR);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes, sent, failure",
+ sent, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, messages, sent, failure",
+ 1, GNUNET_NO);
}
else
{
+ /* Success */
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "UDP transmitted %u-byte message to `%s' (%d: %s)\n",
- (unsigned int) (udpw->msg_size), GNUNET_a2s (sa, slen), (int) sent,
+ "UDP transmitted %u-byte message to `%s' `%s' (%d: %s)\n",
+ (unsigned int) (udpw->msg_size), GNUNET_i2s(&udpw->session->target) ,GNUNET_a2s (sa, slen), (int) sent,
(sent < 0) ? STRERROR (errno) : "ok");
- call_continuation(udpw, GNUNET_OK);
- }
-
- if (sock == plugin->sockv4)
- GNUNET_CONTAINER_DLL_remove(plugin->ipv4_queue_head, plugin->ipv4_queue_tail, udpw);
- else if (sock == plugin->sockv6)
- GNUNET_CONTAINER_DLL_remove(plugin->ipv6_queue_head, plugin->ipv6_queue_tail, udpw);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, bytes, sent, success",
+ sent, GNUNET_NO);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ "# UDP, total, messages, sent, success",
+ 1, GNUNET_NO);
+ if (NULL != udpw->frag_ctx)
+ udpw->frag_ctx->on_wire_size += udpw->msg_size;
+ call_continuation (udpw, GNUNET_OK);
+ }
+ dequeue (plugin, udpw);
GNUNET_free (udpw);
udpw = NULL;
struct Plugin *plugin = cls;
plugin->select_task = GNUNET_SCHEDULER_NO_TASK;
- if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
- plugin->with_v4_ws = GNUNET_NO;
-
- if ((tc->reason & GNUNET_SCHEDULER_REASON_READ_READY) != 0)
- {
- if ((NULL != plugin->sockv4) &&
- (GNUNET_NETWORK_fdset_isset (tc->read_ready, plugin->sockv4)))
- udp_select_read (plugin, plugin->sockv4);
-
- }
-
- if ((tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY) != 0)
- {
- if ((NULL != plugin->sockv4) && (plugin->ipv4_queue_head != NULL) &&
- (GNUNET_NETWORK_fdset_isset (tc->write_ready, plugin->sockv4)))
- {
- udp_select_send (plugin, plugin->sockv4);
- }
- }
-
- if (plugin->select_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (plugin->select_task);
- plugin->select_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v4,
- (plugin->ipv4_queue_head != NULL) ? plugin->ws_v4 : NULL,
- &udp_plugin_select, plugin);
- if (plugin->ipv4_queue_head != NULL)
- plugin->with_v4_ws = GNUNET_YES;
- else
- plugin->with_v4_ws = GNUNET_NO;
+ if ( (0 != (tc->reason & GNUNET_SCHEDULER_REASON_READ_READY)) &&
+ (NULL != plugin->sockv4) &&
+ (GNUNET_NETWORK_fdset_isset (tc->read_ready, plugin->sockv4)) )
+ udp_select_read (plugin, plugin->sockv4);
+ if ( (0 != (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY)) &&
+ (NULL != plugin->sockv4) &&
+ (NULL != plugin->ipv4_queue_head) &&
+ (GNUNET_NETWORK_fdset_isset (tc->write_ready, plugin->sockv4)) )
+ udp_select_send (plugin, plugin->sockv4);
+ schedule_select (plugin);
}
struct Plugin *plugin = cls;
plugin->select_task_v6 = GNUNET_SCHEDULER_NO_TASK;
- if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
-
- plugin->with_v6_ws = GNUNET_NO;
- if ((tc->reason & GNUNET_SCHEDULER_REASON_READ_READY) != 0)
- {
- if ((NULL != plugin->sockv6) &&
- (GNUNET_NETWORK_fdset_isset (tc->read_ready, plugin->sockv6)))
- udp_select_read (plugin, plugin->sockv6);
- }
-
- if ((tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY) != 0)
- {
- if ((NULL != plugin->sockv6) && (plugin->ipv6_queue_head != NULL) &&
- (GNUNET_NETWORK_fdset_isset (tc->write_ready, plugin->sockv6)))
- {
- udp_select_send (plugin, plugin->sockv6);
- }
- }
- if (plugin->select_task_v6 != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (plugin->select_task_v6);
- plugin->select_task_v6 = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v6,
- (plugin->ipv6_queue_head != NULL) ? plugin->ws_v6 : NULL,
- &udp_plugin_select_v6, plugin);
- if (plugin->ipv6_queue_head != NULL)
- plugin->with_v6_ws = GNUNET_YES;
- else
- plugin->with_v6_ws = GNUNET_NO;
+ if ( ((tc->reason & GNUNET_SCHEDULER_REASON_READ_READY) != 0) &&
+ (NULL != plugin->sockv6) &&
+ (GNUNET_NETWORK_fdset_isset (tc->read_ready, plugin->sockv6)) )
+ udp_select_read (plugin, plugin->sockv6);
+ if ( (0 != (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY)) &&
+ (NULL != plugin->sockv6) && (plugin->ipv6_queue_head != NULL) &&
+ (GNUNET_NETWORK_fdset_isset (tc->write_ready, plugin->sockv6)) )
+ udp_select_send (plugin, plugin->sockv6);
+ schedule_select (plugin);
}
+/**
+ *
+ * @return number of sockets that were successfully bound
+ */
static int
-setup_sockets (struct Plugin *plugin, struct sockaddr_in6 *serverAddrv6, struct sockaddr_in *serverAddrv4)
+setup_sockets (struct Plugin *plugin,
+ const struct sockaddr_in6 *bind_v6,
+ const struct sockaddr_in *bind_v4)
{
int tries;
int sockets_created = 0;
- struct sockaddr *serverAddr;
+ struct sockaddr_in6 server_addrv6;
+ struct sockaddr_in server_addrv4;
+ struct sockaddr *server_addr;
struct sockaddr *addrs[2];
socklen_t addrlens[2];
socklen_t addrlen;
+ int eno;
/* Create IPv6 socket */
+ eno = EINVAL;
if (plugin->enable_ipv6 == GNUNET_YES)
{
plugin->sockv6 = GNUNET_NETWORK_socket_create (PF_INET6, SOCK_DGRAM, 0);
if (NULL == plugin->sockv6)
{
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "socket");
LOG (GNUNET_ERROR_TYPE_WARNING, "Disabling IPv6 since it is not supported on this system!\n");
plugin->enable_ipv6 = GNUNET_NO;
}
else
{
+ memset (&server_addrv6, '\0', sizeof (struct sockaddr_in6));
#if HAVE_SOCKADDR_IN_SIN_LEN
- serverAddrv6->sin6_len = sizeof (serverAddrv6);
+ server_addrv6.sin6_len = sizeof (struct sockaddr_in6);
#endif
- serverAddrv6->sin6_family = AF_INET6;
- serverAddrv6->sin6_addr = in6addr_any;
- serverAddrv6->sin6_port = htons (plugin->port);
+ server_addrv6.sin6_family = AF_INET6;
+ if (NULL != bind_v6)
+ server_addrv6.sin6_addr = bind_v6->sin6_addr;
+ else
+ server_addrv6.sin6_addr = in6addr_any;
+
+ if (0 == plugin->port) /* autodetect */
+ server_addrv6.sin6_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537) + 32000);
+ else
+ server_addrv6.sin6_port = htons (plugin->port);
addrlen = sizeof (struct sockaddr_in6);
- serverAddr = (struct sockaddr *) serverAddrv6;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Binding to IPv6 port %d\n",
- ntohs (serverAddrv6->sin6_port));
+ server_addr = (struct sockaddr *) &server_addrv6;
+
tries = 0;
- while (GNUNET_NETWORK_socket_bind (plugin->sockv6, serverAddr, addrlen) !=
- GNUNET_OK)
+ while (tries < 10)
{
- serverAddrv6->sin6_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537) + 32000); /* Find a good, non-root port */
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "IPv6 Binding failed, trying new port %d\n",
- ntohs (serverAddrv6->sin6_port));
- tries++;
- if (tries > 10)
- {
- GNUNET_NETWORK_socket_close (plugin->sockv6);
- plugin->sockv6 = NULL;
- break;
- }
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Binding to IPv6 `%s'\n",
+ GNUNET_a2s (server_addr, addrlen));
+ /* binding */
+ if (GNUNET_OK == GNUNET_NETWORK_socket_bind (plugin->sockv6,
+ server_addr, addrlen))
+ break;
+ eno = errno;
+ if (0 != plugin->port)
+ {
+ tries = 10; /* fail */
+ break; /* bind failed on specific port */
+ }
+ /* autodetect */
+ server_addrv6.sin6_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537) + 32000);
+ tries ++;
+ }
+ if (tries >= 10)
+ {
+ GNUNET_NETWORK_socket_close (plugin->sockv6);
+ plugin->enable_ipv6 = GNUNET_NO;
+ plugin->sockv6 = NULL;
}
+
if (plugin->sockv6 != NULL)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "IPv6 socket created on port %d\n",
- ntohs (serverAddrv6->sin6_port));
- addrs[sockets_created] = (struct sockaddr *) serverAddrv6;
+ "IPv6 socket created on port %s\n",
+ GNUNET_a2s (server_addr, addrlen));
+ addrs[sockets_created] = (struct sockaddr *) &server_addrv6;
addrlens[sockets_created] = sizeof (struct sockaddr_in6);
sockets_created++;
}
+ else
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Failed to bind UDP socket to %s: %s\n",
+ GNUNET_a2s (server_addr, addrlen),
+ STRERROR (eno));
+ }
}
}
/* Create IPv4 socket */
+ eno = EINVAL;
plugin->sockv4 = GNUNET_NETWORK_socket_create (PF_INET, SOCK_DGRAM, 0);
if (NULL == plugin->sockv4)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "socket");
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Disabling IPv4 since it is not supported on this system!\n");
+ plugin->enable_ipv4 = GNUNET_NO;
}
else
{
+ memset (&server_addrv4, '\0', sizeof (struct sockaddr_in));
#if HAVE_SOCKADDR_IN_SIN_LEN
- serverAddrv4->sin_len = sizeof (serverAddrv4);
+ server_addrv4.sin_len = sizeof (struct sockaddr_in);
#endif
- serverAddrv4->sin_family = AF_INET;
- serverAddrv4->sin_addr.s_addr = INADDR_ANY;
- serverAddrv4->sin_port = htons (plugin->port);
+ server_addrv4.sin_family = AF_INET;
+ if (NULL != bind_v4)
+ server_addrv4.sin_addr = bind_v4->sin_addr;
+ else
+ server_addrv4.sin_addr.s_addr = INADDR_ANY;
+
+ if (0 == plugin->port)
+ /* autodetect */
+ server_addrv4.sin_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537) + 32000);
+ else
+ server_addrv4.sin_port = htons (plugin->port);
+
+
addrlen = sizeof (struct sockaddr_in);
- serverAddr = (struct sockaddr *) serverAddrv4;
+ server_addr = (struct sockaddr *) &server_addrv4;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Binding to IPv4 port %d\n",
- ntohs (serverAddrv4->sin_port));
tries = 0;
- while (GNUNET_NETWORK_socket_bind (plugin->sockv4, serverAddr, addrlen) !=
- GNUNET_OK)
+ while (tries < 10)
{
- serverAddrv4->sin_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537) + 32000); /* Find a good, non-root port */
- LOG (GNUNET_ERROR_TYPE_DEBUG, "IPv4 Binding failed, trying new port %d\n",
- ntohs (serverAddrv4->sin_port));
- tries++;
- if (tries > 10)
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Binding to IPv4 `%s'\n",
+ GNUNET_a2s (server_addr, addrlen));
+
+ /* binding */
+ if (GNUNET_OK == GNUNET_NETWORK_socket_bind (plugin->sockv4,
+ server_addr, addrlen))
+ break;
+ eno = errno;
+ if (0 != plugin->port)
{
- GNUNET_NETWORK_socket_close (plugin->sockv4);
- plugin->sockv4 = NULL;
- break;
+ tries = 10; /* fail */
+ break; /* bind failed on specific port */
}
+
+ /* autodetect */
+ server_addrv4.sin_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537) + 32000);
+ tries ++;
}
+
+ if (tries >= 10)
+ {
+ GNUNET_NETWORK_socket_close (plugin->sockv4);
+ plugin->enable_ipv4 = GNUNET_NO;
+ plugin->sockv4 = NULL;
+ }
+
if (plugin->sockv4 != NULL)
{
- addrs[sockets_created] = (struct sockaddr *) serverAddrv4;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "IPv4 socket created on port %s\n", GNUNET_a2s (server_addr, addrlen));
+ addrs[sockets_created] = (struct sockaddr *) &server_addrv4;
addrlens[sockets_created] = sizeof (struct sockaddr_in);
sockets_created++;
}
+ else
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Failed to bind UDP socket to %s: %s\n",
+ GNUNET_a2s (server_addr, addrlen), STRERROR (eno));
+ }
}
- /* Create file descriptors */
- plugin->rs_v4 = GNUNET_NETWORK_fdset_create ();
- plugin->ws_v4 = GNUNET_NETWORK_fdset_create ();
- GNUNET_NETWORK_fdset_zero (plugin->rs_v4);
- GNUNET_NETWORK_fdset_zero (plugin->ws_v4);
- if (NULL != plugin->sockv4)
+ if (0 == sockets_created)
{
- GNUNET_NETWORK_fdset_set (plugin->rs_v4, plugin->sockv4);
- GNUNET_NETWORK_fdset_set (plugin->ws_v4, plugin->sockv4);
+ LOG (GNUNET_ERROR_TYPE_WARNING, _("Failed to open UDP sockets\n"));
+ return 0; /* No sockets created, return */
}
- if (sockets_created == 0)
- LOG (GNUNET_ERROR_TYPE_WARNING, _("Failed to open UDP sockets\n"));
-
- plugin->select_task =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v4,
- NULL,
- &udp_plugin_select, plugin);
- plugin->with_v4_ws = GNUNET_NO;
+ /* Create file descriptors */
+ if (plugin->enable_ipv4 == GNUNET_YES)
+ {
+ plugin->rs_v4 = GNUNET_NETWORK_fdset_create ();
+ plugin->ws_v4 = GNUNET_NETWORK_fdset_create ();
+ GNUNET_NETWORK_fdset_zero (plugin->rs_v4);
+ GNUNET_NETWORK_fdset_zero (plugin->ws_v4);
+ if (NULL != plugin->sockv4)
+ {
+ GNUNET_NETWORK_fdset_set (plugin->rs_v4, plugin->sockv4);
+ GNUNET_NETWORK_fdset_set (plugin->ws_v4, plugin->sockv4);
+ }
+ }
if (plugin->enable_ipv6 == GNUNET_YES)
{
GNUNET_NETWORK_fdset_set (plugin->rs_v6, plugin->sockv6);
GNUNET_NETWORK_fdset_set (plugin->ws_v6, plugin->sockv6);
}
-
- plugin->select_task_v6 =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_TIME_UNIT_FOREVER_REL,
- plugin->rs_v6,
- NULL,
- &udp_plugin_select_v6, plugin);
- plugin->with_v6_ws = GNUNET_NO;
}
+ schedule_select (plugin);
plugin->nat = GNUNET_NAT_register (plugin->env->cfg,
GNUNET_NO, plugin->port,
sockets_created,
return sockets_created;
}
-/**
- * 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 %llu, disconnecting\n",
- s, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
-
- /* 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 %llu\n",
- s, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
-}
-
-/**
- * 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 %llu\n",
- s, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
-}
-
-/**
- * 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 rescheduled for session %p canceled\n",
- s, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Timeout for session %p was not active\n",
- s);
- }
-}
/**
* The exported method. Makes the core api available via a global and
unsigned long long enable_v6;
char * bind4_address;
char * bind6_address;
+ char * fancy_interval;
struct GNUNET_TIME_Relative interval;
- struct sockaddr_in serverAddrv4;
- struct sockaddr_in6 serverAddrv6;
+ struct sockaddr_in server_addrv4;
+ struct sockaddr_in6 server_addrv6;
int res;
+ int have_bind4;
+ int have_bind6;
if (NULL == env->receive)
{
return api;
}
- GNUNET_assert( NULL != env->stats);
+ GNUNET_assert (NULL != env->stats);
- /* Get port number */
+ /* Get port number: port == 0 : autodetect a port,
+ * > 0 : use this port,
+ * not given : 2086 default */
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-udp", "PORT",
&port))
if ((GNUNET_YES ==
GNUNET_CONFIGURATION_get_value_yesno (env->cfg, "nat",
"DISABLEV6")))
- {
enable_v6 = GNUNET_NO;
- }
else
enable_v6 = GNUNET_YES;
/* Addresses */
- memset (&serverAddrv6, 0, sizeof (serverAddrv6));
- memset (&serverAddrv4, 0, sizeof (serverAddrv4));
-
+ have_bind4 = GNUNET_NO;
+ memset (&server_addrv4, 0, sizeof (server_addrv4));
if (GNUNET_YES ==
GNUNET_CONFIGURATION_get_value_string (env->cfg, "transport-udp",
"BINDTO", &bind4_address))
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Binding udp plugin to specific address: `%s'\n",
bind4_address);
- if (1 != inet_pton (AF_INET, bind4_address, &serverAddrv4.sin_addr))
+ if (1 != inet_pton (AF_INET, bind4_address, &server_addrv4.sin_addr))
{
GNUNET_free (bind4_address);
return NULL;
}
+ have_bind4 = GNUNET_YES;
}
-
+ GNUNET_free_non_null (bind4_address);
+ have_bind6 = GNUNET_NO;
+ memset (&server_addrv6, 0, sizeof (server_addrv6));
if (GNUNET_YES ==
GNUNET_CONFIGURATION_get_value_string (env->cfg, "transport-udp",
"BINDTO6", &bind6_address))
"Binding udp plugin to specific address: `%s'\n",
bind6_address);
if (1 !=
- inet_pton (AF_INET6, bind6_address, &serverAddrv6.sin6_addr))
+ inet_pton (AF_INET6, bind6_address, &server_addrv6.sin6_addr))
{
LOG (GNUNET_ERROR_TYPE_ERROR, _("Invalid IPv6 address: `%s'\n"),
bind6_address);
- GNUNET_free_non_null (bind4_address);
GNUNET_free (bind6_address);
return NULL;
}
+ have_bind6 = GNUNET_YES;
}
+ GNUNET_free_non_null (bind6_address);
+
+ /* Initialize my flags */
+ myoptions = 0;
/* Enable neighbour discovery */
broadcast = GNUNET_CONFIGURATION_get_value_yesno (env->cfg, "transport-udp",
if (broadcast == GNUNET_SYSERR)
broadcast = GNUNET_NO;
- if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_time (env->cfg, "transport-udp",
- "BROADCAST_INTERVAL", &interval))
+ if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_string (env->cfg, "transport-udp",
+ "BROADCAST_INTERVAL", &fancy_interval))
{
interval = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10);
}
+ else
+ {
+ if (GNUNET_SYSERR == GNUNET_STRINGS_fancy_time_to_relative(fancy_interval, &interval))
+ {
+ interval = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
+ }
+ GNUNET_free (fancy_interval);
+ }
/* Maximum datarate */
if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-udp",
}
p = GNUNET_malloc (sizeof (struct Plugin));
- api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
-
- GNUNET_BANDWIDTH_tracker_init (&p->tracker,
- GNUNET_BANDWIDTH_value_init ((uint32_t)udp_max_bps), 30);
- p->sessions = GNUNET_CONTAINER_multihashmap_create (10);
- p->defrag_ctxs = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- p->mst = GNUNET_SERVER_mst_create (&process_inbound_tokenized_messages, p);
p->port = port;
p->aport = aport;
p->broadcast_interval = interval;
p->enable_ipv6 = enable_v6;
+ p->enable_ipv4 = GNUNET_YES; /* default */
p->env = env;
-
+ p->sessions = GNUNET_CONTAINER_multipeermap_create (10, GNUNET_NO);
+ p->defrag_ctxs = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
+ p->mst = GNUNET_SERVER_mst_create (&process_inbound_tokenized_messages, p);
+ GNUNET_BANDWIDTH_tracker_init (&p->tracker,
+ GNUNET_BANDWIDTH_value_init ((uint32_t) udp_max_bps), 30);
plugin = p;
+ LOG(GNUNET_ERROR_TYPE_DEBUG, "Setting up sockets\n");
+ res = setup_sockets (p, (GNUNET_YES == have_bind6) ? &server_addrv6 : NULL,
+ (GNUNET_YES == have_bind4) ? &server_addrv4 : NULL );
+ if ((res == 0) || ((p->sockv4 == NULL )&& (p->sockv6 == NULL)))
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ _("Failed to create network sockets, plugin failed\n"));
+ GNUNET_CONTAINER_multipeermap_destroy (p->sessions);
+ GNUNET_CONTAINER_heap_destroy (p->defrag_ctxs);
+ GNUNET_SERVER_mst_destroy (p->mst);
+ GNUNET_free (p);
+ return NULL;
+ }
+ else if (broadcast == GNUNET_YES)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting broadcasting\n");
+ setup_broadcast (p, &server_addrv6, &server_addrv4);
+ }
+
+ api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
api->cls = p;
api->send = NULL;
api->disconnect = &udp_disconnect;
api->check_address = &udp_plugin_check_address;
api->get_session = &udp_plugin_get_session;
api->send = &udp_plugin_send;
+ api->get_network = &udp_get_network;
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Setting up sockets\n");
- res = setup_sockets (p, &serverAddrv6, &serverAddrv4);
- if ((res == 0) || ((p->sockv4 == NULL) && (p->sockv6 == NULL)))
- {
- LOG (GNUNET_ERROR_TYPE_ERROR, "Failed to create network sockets, plugin failed\n");
- GNUNET_free (p);
- GNUNET_free (api);
- return NULL;
- }
-
- if (broadcast == GNUNET_YES)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting broadcasting\n");
- setup_broadcast (p, &serverAddrv6, &serverAddrv4);
- }
-
- GNUNET_free_non_null (bind4_address);
- GNUNET_free_non_null (bind6_address);
return api;
}
{
struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
struct Plugin *plugin = api->cls;
+ struct PrettyPrinterContext *cur;
+ struct PrettyPrinterContext *next;
if (NULL == plugin)
{
}
stop_broadcast (plugin);
-
if (plugin->select_task != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (plugin->select_task);
}
/* Closing sockets */
- if (plugin->sockv4 != NULL)
+ if (GNUNET_YES ==plugin->enable_ipv4)
{
- GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (plugin->sockv4));
- plugin->sockv4 = NULL;
+ if (plugin->sockv4 != NULL)
+ {
+ GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (plugin->sockv4));
+ plugin->sockv4 = NULL;
+ }
+ GNUNET_NETWORK_fdset_destroy (plugin->rs_v4);
+ GNUNET_NETWORK_fdset_destroy (plugin->ws_v4);
}
- GNUNET_NETWORK_fdset_destroy (plugin->rs_v4);
- GNUNET_NETWORK_fdset_destroy (plugin->ws_v4);
-
- if (plugin->sockv6 != NULL)
+ if (GNUNET_YES ==plugin->enable_ipv6)
{
- GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (plugin->sockv6));
- plugin->sockv6 = NULL;
+ if (plugin->sockv6 != NULL)
+ {
+ GNUNET_break (GNUNET_OK == GNUNET_NETWORK_socket_close (plugin->sockv6));
+ plugin->sockv6 = NULL;
- GNUNET_NETWORK_fdset_destroy (plugin->rs_v6);
- GNUNET_NETWORK_fdset_destroy (plugin->ws_v6);
+ GNUNET_NETWORK_fdset_destroy (plugin->rs_v6);
+ GNUNET_NETWORK_fdset_destroy (plugin->ws_v6);
+ }
}
-
- GNUNET_NAT_unregister (plugin->nat);
+ if (NULL != plugin->nat)
+ GNUNET_NAT_unregister (plugin->nat);
if (plugin->defrag_ctxs != NULL)
{
}
/* Clean up leftover messages */
- struct UDPMessageWrapper * udpw;
+ struct UDP_MessageWrapper * udpw;
udpw = plugin->ipv4_queue_head;
while (udpw != NULL)
{
- struct UDPMessageWrapper *tmp = udpw->next;
- GNUNET_CONTAINER_DLL_remove(plugin->ipv4_queue_head, plugin->ipv4_queue_tail, udpw);
+ struct UDP_MessageWrapper *tmp = udpw->next;
+ dequeue (plugin, udpw);
call_continuation(udpw, GNUNET_SYSERR);
GNUNET_free (udpw);
+
udpw = tmp;
}
udpw = plugin->ipv6_queue_head;
while (udpw != NULL)
{
- struct UDPMessageWrapper *tmp = udpw->next;
- GNUNET_CONTAINER_DLL_remove(plugin->ipv6_queue_head, plugin->ipv6_queue_tail, udpw);
+ struct UDP_MessageWrapper *tmp = udpw->next;
+ dequeue (plugin, udpw);
call_continuation(udpw, GNUNET_SYSERR);
GNUNET_free (udpw);
+
udpw = tmp;
}
/* Clean up sessions */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Cleaning up sessions\n");
- GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions, &disconnect_and_free_it, plugin);
- GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->sessions, &disconnect_and_free_it, plugin);
+ GNUNET_CONTAINER_multipeermap_destroy (plugin->sessions);
+
+ 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);
+ GNUNET_RESOLVER_request_cancel (cur->resolver_handle);
+ GNUNET_SCHEDULER_cancel (cur->timeout_task);
+ GNUNET_free (cur);
+ GNUNET_break (0);
+ }
plugin->nat = NULL;
GNUNET_free (plugin);
GNUNET_free (api);
+#if DEBUG_MALLOC
+ struct Allocation *allocation;
+ while (NULL != ahead)
+ {
+ allocation = ahead;
+ GNUNET_CONTAINER_DLL_remove (ahead, atail, allocation);
+ GNUNET_free (allocation);
+ }
+ struct Allocator *allocator;
+ while (NULL != aehead)
+ {
+ allocator = aehead;
+ GNUNET_CONTAINER_DLL_remove (aehead, aetail, allocator);
+ GNUNET_free (allocator);
+ }
+#endif
return NULL;
}
projects / oweals / gnunet.git / blobdiff