#define UDP_MAX_SENDER_ADDRESSES_WITH_DEFRAG 128
+#define DEBUG_MALLOC GNUNET_NO
/**
* Closure for 'append_port'.
};
+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 UDP_FragmentationContext * frag_ctx;
+
/**
* Address of the other peer
*/
const struct sockaddr *sock_addr;
- size_t addrlen;
-
/**
* Desired delay for next sending we send to other peer
*/
*/
struct GNUNET_TIME_Absolute flow_delay_from_other_peer;
+ /**
+ * Session timeout task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
/**
* 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;
- struct FragmentationContext * frag_ctx;
+ size_t addrlen;
+
unsigned int rc;
*/
const void *arg;
+ struct Session *session;
/**
* Number of bytes in source address.
*/
size_t args;
- struct Session *session;
};
*/
const struct sockaddr *addr;
+ struct Session *session;
+
/**
* Number of bytes in 'addr'.
*/
socklen_t addr_len;
- struct Session *session;
};
/**
- * 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;
- struct GNUNET_FRAGMENT_Context * frag;
- struct Session * session;
- struct GNUNET_TIME_Absolute timeout;
+ /**
+ * Handle for GNUNET_FRAGMENT context
+ */
+ struct GNUNET_FRAGMENT_Context * frag;
+ /**
+ * The session this fragmentation context belongs to
+ */
+ struct Session * session;
/**
* Function to call upon completion of the transmission.
*/
void *cont_cls;
- size_t bytes_to_send;
+ /**
+ * Message timeout
+ */
+ struct GNUNET_TIME_Absolute timeout;
+
+ /**
+ * 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;
+
+ /**
+ * DLL of messages
+ * previous element
+ */
+ struct UDP_MessageWrapper *prev;
+
+ /**
+ * DLL of messages
+ * previous element
+ */
+ struct UDP_MessageWrapper *next;
+
+ /**
+ * 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;
/**
*/
void *cont_cls;
- struct FragmentationContext *frag_ctx;
-
+ /**
+ * Fragmentation context
+ * frag_ctx == NULL if transport <= MTU
+ * frag_ctx != NULL if transport > MTU
+ */
+ struct UDP_FragmentationContext *frag_ctx;
};
};
+/**
+ * Encapsulation of all of the state of the plugin.
+ */
+struct Plugin * plugin;
+
/**
* We have been notified that our readset has something to read. We don't
static void
udp_plugin_select (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
/**
* We have been notified that our readset has something to read. We don't
* know which socket needs to be read, so we have to check each one
static void
udp_plugin_select_v6 (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+/**
+ * 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);
+
+#if DEBUG_MALLOC
+
+struct Allocator
+{
+ struct Allocator *prev;
+ struct Allocator *next;
+
+ unsigned int bytes_alloced;
+ unsigned int max_alloced;
+ unsigned int diff;
+ unsigned int line;
+
+ struct GNUNET_TIME_Absolute max_alloced_when;
+ struct GNUNET_TIME_Absolute last_alloced_when;
+
+};
+
+struct Allocator *aehead;
+struct Allocator *aetail;
+
+struct Allocation
+{
+ struct Allocation *prev;
+ struct Allocation *next;
+
+ struct Allocator *alloc;
+ unsigned int bytes_alloced;
+ void *p;
+ unsigned int line;
+};
+
+struct Allocation *ahead;
+struct Allocation *atail;
+
+static int bytes_alloced;
+
+static struct Allocator *
+find_allocator (int line)
+{
+ struct Allocator *cur = aehead;
+ while (NULL != cur)
+ {
+ if (line == cur->line)
+ return cur;
+ cur = cur->next;
+ }
+ return cur;
+}
+
+static void
+print_allocators ()
+{
+ static int start = GNUNET_YES;
+ static struct GNUNET_TIME_Absolute next;
+ static struct GNUNET_TIME_Relative rem;
+ struct Allocator *cur = aehead;
+ if (start)
+ {
+ next = GNUNET_TIME_UNIT_ZERO_ABS;
+ start = GNUNET_NO;
+ }
+ if (0 == (rem = GNUNET_TIME_absolute_get_remaining(next)).rel_value)
+ {
+ fprintf (stderr, "Allocated in `%s' total: %5u bytes\n", __FILE__, bytes_alloced);
+ while (NULL != cur)
+ {
+ char *last_alloc = GNUNET_strdup (GNUNET_STRINGS_absolute_time_to_string(cur->max_alloced_when));
+ fprintf (stderr, "Allocated from line %4u :%5u bytes (diff %5i bytes, max alloc: %5u @ %s, last alloc %s)\n",
+ cur->line, cur->bytes_alloced, cur->diff, cur->max_alloced,
+ last_alloc,
+ GNUNET_STRINGS_absolute_time_to_string(cur->last_alloced_when));
+ GNUNET_free (last_alloc);
+ cur->diff = 0;
+ cur = cur->next;
+ }
+ fprintf (stderr, "\n");
+ next = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(), GNUNET_TIME_UNIT_SECONDS);
+ }
+}
+
+#endif
+
+static void
+MEMDEBUG_add_alloc (void *p, size_t size, int line)
+{
+#if DEBUG_MALLOC
+ struct Allocation *alloc = GNUNET_malloc (sizeof (struct Allocation));
+ struct Allocator *allocator = find_allocator(line);
+ if (NULL == allocator)
+ {
+ allocator = GNUNET_malloc (sizeof (struct Allocator));
+ allocator->line = line;
+ GNUNET_CONTAINER_DLL_insert (aehead, aetail, allocator);
+ }
+ alloc->alloc = allocator;
+ alloc->p = p;
+ alloc->line = line;
+ alloc->bytes_alloced = size;
+ allocator->bytes_alloced += size;
+ allocator->last_alloced_when = GNUNET_TIME_absolute_get();
+ if (allocator->bytes_alloced >= allocator->max_alloced)
+ {
+ allocator->max_alloced = allocator->bytes_alloced;
+ allocator->max_alloced_when = allocator->last_alloced_when;
+ }
+ allocator->diff += size;
+ GNUNET_CONTAINER_DLL_insert (ahead, atail, alloc);
+ print_allocators ();
+ bytes_alloced += size;
+#endif
+}
+
+
+static void *
+MEMDEBUG_malloc (size_t size, int line)
+{
+ void * ret;
+
+ ret = GNUNET_malloc (size);
+#if DEBUG_MALLOC
+ if (NULL != ret)
+ MEMDEBUG_add_alloc (ret, size, line);
+#endif
+ return ret;
+
+}
+
+static void
+MEMDEBUG_free (void * alloc, int line)
+{
+#if DEBUG_MALLOC
+ struct Allocation *cur;
+ struct Allocator *allocator;
+ cur = ahead;
+ while (NULL != cur)
+ {
+ if (alloc == cur->p)
+ break;
+ cur = cur->next;
+ }
+ if (NULL == cur)
+ {
+ fprintf (stderr, "Unmonitored free from line %4u\n", line);
+ GNUNET_break (0);
+ return;
+ }
+ allocator = cur->alloc;
+ if (NULL == allocator)
+ {
+ GNUNET_break (0);
+ }
+ GNUNET_CONTAINER_DLL_remove (ahead, atail, cur);
+ allocator->bytes_alloced -= cur->bytes_alloced;
+ allocator->diff -= cur->bytes_alloced;
+ GNUNET_assert (allocator->bytes_alloced >= 0);
+ bytes_alloced -= cur->bytes_alloced;
+ GNUNET_assert (bytes_alloced >= 0);
+ GNUNET_free (cur);
+#endif
+ GNUNET_free (alloc);
+}
+
+static void
+MEMDEBUG_free_non_null (void * alloc, int line)
+{
+ if (alloc != NULL)
+ MEMDEBUG_free (alloc, line);
+}
+
+
+/**
+ * (re)schedule select tasks for this plugin.
+ *
+ * @param plugin plugin to reschedule
+ */
+static void
+schedule_select (struct Plugin *plugin)
+{
+ struct GNUNET_TIME_Relative min_delay;
+ struct UDP_MessageWrapper *udpw;
+
+ if (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) ? GNUNET_TIME_UNIT_FOREVER_REL : min_delay,
+ plugin->rs_v4,
+ (0 == min_delay.rel_value) ? plugin->ws_v4 : NULL,
+ &udp_plugin_select, plugin);
+ }
+ if (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) ? GNUNET_TIME_UNIT_FOREVER_REL : min_delay,
+ plugin->rs_v6,
+ (0 == min_delay.rel_value) ? plugin->ws_v6 : NULL,
+ &udp_plugin_select_v6, plugin);
+ }
+}
+
+
/**
* Function called for a quick conversion of the binary address to
* a numeric address. Note that the caller must not free the
* If the function returns GNUNET_SYSERR, its contents are undefined.
* @return GNUNET_OK on success, GNUNET_SYSERR on failure
*/
-int
+static int
udp_string_to_address (void *cls, const char *addr, uint16_t addrlen,
void **buf, size_t *added)
{
struct sockaddr_storage socket_address;
-
- if ((NULL == addr) || (addrlen == 0))
+
+ if ((NULL == addr) || (0 == addrlen))
{
GNUNET_break (0);
return GNUNET_SYSERR;
return GNUNET_SYSERR;
}
- int ret = GNUNET_STRINGS_to_address_ip (addr, strlen (addr),
- &socket_address);
-
- if (ret != GNUNET_OK)
+ if (GNUNET_OK != GNUNET_STRINGS_to_address_ip (addr, strlen (addr),
+ &socket_address))
{
return GNUNET_SYSERR;
}
- if (socket_address.ss_family == AF_INET)
+ switch (socket_address.ss_family)
{
- struct IPv4UdpAddress *u4;
- struct sockaddr_in *in4 = (struct sockaddr_in *) &socket_address;
- u4 = GNUNET_malloc (sizeof (struct IPv4UdpAddress));
- u4->ipv4_addr = in4->sin_addr.s_addr;
- u4->u4_port = in4->sin_port;
- *buf = u4;
- *added = sizeof (struct IPv4UdpAddress);
- return GNUNET_OK;
- }
- else if (socket_address.ss_family == AF_INET6)
- {
- struct IPv6UdpAddress *u6;
- struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &socket_address;
- u6 = GNUNET_malloc (sizeof (struct IPv6UdpAddress));
- u6->ipv6_addr = in6->sin6_addr;
- u6->u6_port = in6->sin6_port;
- *buf = u6;
- *added = sizeof (struct IPv6UdpAddress);
- return GNUNET_OK;
+ case AF_INET:
+ {
+ struct IPv4UdpAddress *u4;
+ struct sockaddr_in *in4 = (struct sockaddr_in *) &socket_address;
+ u4 = MEMDEBUG_malloc (sizeof (struct IPv4UdpAddress), __LINE__ );
+ u4->ipv4_addr = in4->sin_addr.s_addr;
+ u4->u4_port = in4->sin_port;
+ *buf = u4;
+ *added = sizeof (struct IPv4UdpAddress);
+ return GNUNET_OK;
+ }
+ case AF_INET6:
+ {
+ struct IPv6UdpAddress *u6;
+ struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &socket_address;
+ u6 = MEMDEBUG_malloc (sizeof (struct IPv6UdpAddress), __LINE__ );
+ u6->ipv6_addr = in6->sin6_addr;
+ u6->u6_port = in6->sin6_port;
+ *buf = u6;
+ *added = sizeof (struct IPv6UdpAddress);
+ return GNUNET_OK;
+ }
+ default:
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
}
- return GNUNET_SYSERR;
}
if (hostname == NULL)
{
ppc->asc (ppc->asc_cls, NULL);
- GNUNET_free (ppc);
+ MEMDEBUG_free (ppc, __LINE__);
return;
}
GNUNET_asprintf (&ret, "%s:%d", hostname, ppc->port);
+ MEMDEBUG_add_alloc (ret, strlen (ret)+ 1, __LINE__);
ppc->asc (ppc->asc_cls, ret);
- GNUNET_free (ret);
+ MEMDEBUG_free (ret, __LINE__);
}
asc (asc_cls, NULL);
return;
}
- ppc = GNUNET_malloc (sizeof (struct PrettyPrinterContext));
+ ppc = MEMDEBUG_malloc (sizeof (struct PrettyPrinterContext), __LINE__ );
ppc->asc = asc;
ppc->asc_cls = asc_cls;
ppc->port = port;
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)
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ 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;
+ }
}
+
/**
* Check if the given port is plausible (must be either our listen
* port or our advertised port). If it is neither, we return
}
-
/**
* Function that will be called to check if a binary address for this
* plugin is well-formed and corresponds to an address for THIS peer
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_free (s->frag_ctx);
+ GNUNET_FRAGMENT_context_destroy(s->frag_ctx->frag, NULL, NULL);
+ MEMDEBUG_free (s->frag_ctx, __LINE__);
s->frag_ctx = NULL;
}
- GNUNET_free (s);
+ MEMDEBUG_free (s, __LINE__);
}
+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);
+ MEMDEBUG_free (udpw, __LINE__);
+ }
+ 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);
+ MEMDEBUG_free (udpw, __LINE__);
+ }
+ 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;
+ MEMDEBUG_free (fc , __LINE__);
+}
+
/**
- * Destroy a session, plugin is being unloaded.
+ * Functions with this signature are called whenever we need
+ * to close a session due to a disconnect or failure to
+ * establish a connection.
*
- * @param cls unused
- * @param key hash of public key of target peer
- * @param value a 'struct PeerSession*' to clean up
- * @return GNUNET_OK (continue to iterate)
+ * @param s session to close down
*/
-static int
-disconnect_and_free_it (void *cls, const GNUNET_HashCode * key, void *value)
+static void
+disconnect_session (struct Session *s)
{
- struct Plugin *plugin = cls;
- struct Session *s = value;
- 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);
+
+ 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);
+ MEMDEBUG_free (udpw, __LINE__);
}
}
next = plugin->ipv6_queue_head;
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);
+ MEMDEBUG_free (udpw, __LINE__);
}
udpw = next;
}
{
if (NULL != s->frag_ctx->cont)
{
- s->frag_ctx->cont (s->frag_ctx->cont_cls, &s->target, GNUNET_SYSERR);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ 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));
}
&s->target.hashPubKey,
s));
GNUNET_STATISTICS_set(plugin->env->stats,
- "# UDP sessions active",
+ "# UDP, sessions active",
GNUNET_CONTAINER_multihashmap_size(plugin->sessions),
GNUNET_NO);
if (s->rc > 0)
s->in_destroy = GNUNET_YES;
else
free_session (s);
+}
+
+/**
+ * Destroy a session, plugin is being unloaded.
+ *
+ * @param cls unused
+ * @param key hash of public key of target peer
+ * @param value a 'struct PeerSession*' to clean up
+ * @return GNUNET_OK (continue to iterate)
+ */
+static int
+disconnect_and_free_it (void *cls, const struct GNUNET_HashCode * key, void *value)
+{
+ disconnect_session(value);
return GNUNET_OK;
}
GNUNET_CONTAINER_multihashmap_get_multiple (plugin->sessions, &target->hashPubKey, &disconnect_and_free_it, plugin);
}
+
+/**
+ * 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 ms, disconnecting\n",
+ s, (unsigned long long) 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 ms\n",
+ s, (unsigned long long) 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 ms\n",
+ s, (unsigned long long) 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 stopped for session %p canceled\n",
+ s, (unsigned long long) GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
+ }
+}
+
+
static struct Session *
create_session (struct Plugin *plugin, const struct GNUNET_PeerIdentity *target,
const void *addr, size_t addrlen,
return NULL;
}
t4 = addr;
- s = GNUNET_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in));
+ s = MEMDEBUG_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in), __LINE__ );
len = sizeof (struct sockaddr_in);
v4 = (struct sockaddr_in *) &s[1];
v4->sin_family = AF_INET;
}
t6 = addr;
s =
- GNUNET_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in6));
+ MEMDEBUG_malloc (sizeof (struct Session) + sizeof (struct sockaddr_in6), __LINE__ );
len = sizeof (struct sockaddr_in6);
v6 = (struct sockaddr_in6 *) &s[1];
v6->sin6_family = AF_INET6;
GNUNET_break_op (0);
return NULL;
}
-
s->addrlen = len;
s->target = *target;
s->sock_addr = (const struct sockaddr *) &s[1];
- s->flow_delay_for_other_peer = GNUNET_TIME_relative_get_zero();
- s->flow_delay_from_other_peer = GNUNET_TIME_absolute_get_zero();
- s->last_expected_delay = GNUNET_TIME_UNIT_SECONDS;
-
+ 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;
+ start_session_timeout (s);
return s;
}
static int
session_cmp_it (void *cls,
- const GNUNET_HashCode * key,
+ const struct GNUNET_HashCode * key,
void *value)
{
struct SessionCompareContext * cctx = cls;
socklen_t s_addrlen = s->addrlen;
-#if VERBOSE_UDP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Comparing address %s <-> %s\n",
+ 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));
-#endif
-
if ((address->address_length == sizeof (struct IPv4UdpAddress)) &&
(s_addrlen == sizeof (struct sockaddr_in)))
{
return GNUNET_NO;
}
}
-
-
return GNUNET_YES;
}
struct SessionCompareContext cctx;
cctx.addr = address;
cctx.res = NULL;
-#if VERBOSE_UDP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Looking for existing session for peer `%s' `%s' \n", GNUNET_i2s (&address->peer), udp_address_to_string(NULL, address->address, address->address_length));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "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);
if (cctx.res != NULL)
{
-#if VERBOSE_UDP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found existing session %p\n", cctx.res);
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG, "Found existing session %p\n", cctx.res);
return cctx.res;
}
address->address,
address->address_length,
NULL, NULL);
-#if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Creating new session %p for peer `%s' address `%s'\n",
- s,
- GNUNET_i2s(&address->peer),
- udp_address_to_string(NULL,address->address,address->address_length));
-#endif
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating new session %p for peer `%s' address `%s'\n",
+ 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,
s,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
-
GNUNET_STATISTICS_set(plugin->env->stats,
- "# UDP sessions active",
+ "# UDP, sessions active",
GNUNET_CONTAINER_multihashmap_size(plugin->sessions),
GNUNET_NO);
-
return s;
}
-
static void
-enqueue (struct Plugin *plugin, struct UDPMessageWrapper * udpw)
+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);
}
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);
-
-#if VERBOSE_UDP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Enqueuing fragment with %u bytes %u\n", msg_len , sizeof (struct UDPMessageWrapper));
-#endif
-
- 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 = MEMDEBUG_malloc (sizeof (struct UDP_MessageWrapper) + msg_len, __LINE__ );
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);
if ((s->addrlen == sizeof (struct sockaddr_in6)) && (plugin->sockv6 == 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 ((s->addrlen == sizeof (struct sockaddr_in)) && (plugin->sockv4 == NULL))
+ return GNUNET_SYSERR;
+ 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))
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
-
LOG (GNUNET_ERROR_TYPE_DEBUG,
"UDP transmits %u-byte message to `%s' using address `%s'\n",
- mlen,
- GNUNET_i2s (&s->target),
- GNUNET_a2s(s->sock_addr, s->addrlen));
+ 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;
- if (mlen <= UDP_MTU)
+ reschedule_session_timeout(s);
+ if (udpmlen <= UDP_MTU)
{
- udpw = GNUNET_malloc (sizeof (struct UDPMessageWrapper) + mlen);
+ /* unfragmented message */
+ udpw = MEMDEBUG_malloc (sizeof (struct UDP_MessageWrapper) + udpmlen, __LINE__ );
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 = MEMDEBUG_malloc (sizeof (struct UDP_FragmentationContext), __LINE__ );
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;
}
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");
}
* @param client the 'struct SourceInformation'
* @param hdr the actual message
*/
-static void
+static int
process_inbound_tokenized_messages (void *cls, void *client,
const struct GNUNET_MessageHeader *hdr)
{
GNUNET_assert (si->session != NULL);
if (GNUNET_YES == si->session->in_destroy)
- return;
+ 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);
-
delay = plugin->env->receive (plugin->env->cls,
- &si->sender,
- hdr,
- (const struct GNUNET_ATS_Information *) &ats, 2,
- NULL,
- si->arg,
- si->args);
+ &si->sender,
+ hdr,
+ si->session,
+ si->arg,
+ si->args);
+
+ plugin->env->update_address_metrics (plugin->env->cls,
+ &si->sender,
+ si->arg,
+ si->args,
+ si->session,
+ (struct GNUNET_ATS_Information *) &ats, 2);
+
si->session->flow_delay_for_other_peer = delay;
+ reschedule_session_timeout(si->session);
+ return GNUNET_OK;
}
GNUNET_a2s (sender_addr, sender_addr_len));
struct GNUNET_HELLO_Address * address = GNUNET_HELLO_address_allocate(&msg->sender, "udp", arg, args);
+ MEMDEBUG_add_alloc (address, GNUNET_HELLO_address_get_size(address), __LINE__);
s = udp_plugin_get_session(plugin, address);
- GNUNET_free (address);
+ MEMDEBUG_free (address, __LINE__);
/* iterate over all embedded messages */
si.session = s;
rc->src_addr, rc->addr_len);
}
+
struct LookupContext
{
const struct sockaddr * addr;
- size_t addrlen;
struct Session *res;
+
+ size_t addrlen;
};
+
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_HashCode * key, void *value)
{
struct LookupContext *l_ctx = cls;
struct Session * s = value;
return GNUNET_YES;
}
+
/**
* Transmit an acknowledgement.
*
ack_proc (void *cls, uint32_t id, const struct GNUNET_MessageHeader *msg)
{
struct DefragContext *rc = cls;
-
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;
AF_INET) ? sizeof (struct sockaddr_in) : sizeof (struct
sockaddr_in6)),
delay);
- udpw = GNUNET_malloc (sizeof (struct UDPMessageWrapper) + msize);
- udpw->cont = NULL;
- udpw->cont_cls = NULL;
- udpw->frag_ctx = NULL;
+ udpw = MEMDEBUG_malloc (sizeof (struct UDP_MessageWrapper) + msize, __LINE__ );
udpw->msg_size = msize;
+ udpw->payload_size = 0;
udpw->session = s;
- udpw->timeout = GNUNET_TIME_absolute_get_forever();
- udpw->udp = (char *)&udpw[1];
-
- udp_ack = (struct UDP_ACK_Message *) udpw->udp;
+ udpw->timeout = GNUNET_TIME_UNIT_FOREVER_ABS;
+ 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 read_process_msg (struct Plugin *plugin,
- const struct GNUNET_MessageHeader *msg,
- char *addr,
- socklen_t fromlen)
+static void
+read_process_msg (struct Plugin *plugin,
+ const struct GNUNET_MessageHeader *msg,
+ const char *addr,
+ socklen_t fromlen)
{
if (ntohs (msg->size) < sizeof (struct UDPMessage))
{
}
process_udp_message (plugin, (const struct UDPMessage *) msg,
(const struct sockaddr *) addr, fromlen);
- return;
}
-static void read_process_ack (struct Plugin *plugin,
- const struct GNUNET_MessageHeader *msg,
- char *addr,
- socklen_t fromlen)
+
+static void
+read_process_ack (struct Plugin *plugin,
+ const struct GNUNET_MessageHeader *msg,
+ char *addr,
+ socklen_t fromlen)
{
const struct GNUNET_MessageHeader *ack;
const struct UDP_ACK_Message *udp_ack;
struct LookupContext l_ctx;
- struct Session *s = NULL;
+ struct Session *s;
struct GNUNET_TIME_Relative flow_delay;
if (ntohs (msg->size) <
GNUNET_break_op (0);
return;
}
-
udp_ack = (const struct UDP_ACK_Message *) msg;
-
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);
+ &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",
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "We received a sending delay of %llu\n",
flow_delay.rel_value);
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));
+ 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));
+ /* 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 = NULL;
- struct UDPMessageWrapper * tmp = NULL;
- if (s->addrlen == sizeof (struct sockaddr_in6))
- {
- udpw = plugin->ipv6_queue_head;
- while (udpw!= NULL)
- {
- 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;
- }
- }
-
- if (s->frag_ctx->cont != NULL)
- {
- GNUNET_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;
- return;
+ /* Remove fragmented message after successful sending */
+ fragmented_message_done (s->frag_ctx, GNUNET_OK);
}
-static void read_process_fragment (struct Plugin *plugin,
- const struct GNUNET_MessageHeader *msg,
- char *addr,
- socklen_t fromlen)
+
+static void
+read_process_fragment (struct Plugin *plugin,
+ const struct GNUNET_MessageHeader *msg,
+ char *addr,
+ socklen_t fromlen)
{
struct DefragContext *d_ctx;
struct GNUNET_TIME_Absolute now;
struct FindReceiveContext frc;
-
frc.rc = NULL;
frc.addr = (const struct sockaddr *) addr;
frc.addr_len = fromlen;
if (d_ctx == NULL)
{
/* Create a new defragmentation context */
- d_ctx = GNUNET_malloc (sizeof (struct DefragContext) + fromlen);
+ d_ctx = MEMDEBUG_malloc (sizeof (struct DefragContext) + fromlen, __LINE__ );
memcpy (&d_ctx[1], addr, fromlen);
d_ctx->src_addr = (const struct sockaddr *) &d_ctx[1];
d_ctx->addr_len = fromlen;
GNUNET_CONTAINER_heap_insert (plugin->defrag_ctxs, d_ctx,
(GNUNET_CONTAINER_HeapCostType)
now.abs_value);
- 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));
+ 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));
}
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));
+ 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));
}
if (GNUNET_OK == GNUNET_DEFRAGMENT_process_fragment (d_ctx->defrag, msg))
d_ctx = GNUNET_CONTAINER_heap_remove_root (plugin->defrag_ctxs);
GNUNET_assert (NULL != d_ctx);
GNUNET_DEFRAGMENT_context_destroy (d_ctx->defrag);
- GNUNET_free (d_ctx);
+ MEMDEBUG_free (d_ctx, __LINE__);
}
}
+
/**
* Read and process a message from the given socket.
*
memset (&addr, 0, sizeof (addr));
size = GNUNET_NETWORK_socket_recvfrom (rsock, buf, sizeof (buf),
(struct sockaddr *) &addr, &fromlen);
-
+#if MINGW
+ /* On SOCK_DGRAM UDP sockets recvfrom might fail with a
+ * 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)
+ {
+ 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;
}
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:
}
}
-
-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 GNUNET_TIME_Absolute ;
-
- 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 == remaining.rel_value)
{
/* Message timed out */
- call_continuation(udpw, GNUNET_SYSERR);
- if (udpw->frag_ctx != NULL)
- {
- GNUNET_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
- {
- GNUNET_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);
+ MEMDEBUG_free (udpw, __LINE__);
+ 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);
+ MEMDEBUG_free (udpw, __LINE__);
+ 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 == remaining.rel_value)
{
/* this message is not delayed */
- GNUNET_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 */
- GNUNET_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 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->payload_size, remaining.rel_value);
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 message to `%s': "
+ "Please check your network configuration and disable IPv6 if your "
+ "connection does not have a global IPv6 address\n"),
+ GNUNET_a2s (sa, slen));
+ }
+ }
+ 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)
{
- 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_free (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);
+ MEMDEBUG_free (udpw, __LINE__);
udpw = NULL;
return sent;
}
+
/**
* We have been notified that our readset has something to read. We don't
* know which socket needs to be read, so we have to check each one
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);
}
plugin->sockv6 = GNUNET_NETWORK_socket_create (PF_INET6, SOCK_DGRAM, 0);
if (NULL == plugin->sockv6)
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Disabling IPv6 since it is not supported on this system!\n");
+ LOG (GNUNET_ERROR_TYPE_WARNING, "Disabling IPv6 since it is not supported on this system!\n");
plugin->enable_ipv6 = GNUNET_NO;
}
else
GNUNET_NETWORK_fdset_set (plugin->ws_v4, plugin->sockv4);
}
- if (sockets_created == 0)
- GNUNET_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;
-
+ if (0 == sockets_created)
+ LOG (GNUNET_ERROR_TYPE_WARNING, _("Failed to open UDP sockets\n"));
if (plugin->enable_ipv6 == GNUNET_YES)
{
plugin->rs_v6 = GNUNET_NETWORK_fdset_create ();
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,
{
struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
struct GNUNET_TRANSPORT_PluginFunctions *api;
- struct Plugin *plugin;
-
+ struct Plugin *p;
unsigned long long port;
unsigned long long aport;
unsigned long long broadcast;
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;
-
int res;
if (NULL == env->receive)
{
/* run in 'stub' mode (i.e. as part of gnunet-peerinfo), don't fully
initialze the plugin or the API */
- api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
+ api = MEMDEBUG_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions), __LINE__ );
api->cls = NULL;
api->address_pretty_printer = &udp_plugin_address_pretty_printer;
api->address_to_string = &udp_address_to_string;
else
enable_v6 = GNUNET_YES;
-
/* Addresses */
memset (&serverAddrv6, 0, sizeof (serverAddrv6));
memset (&serverAddrv4, 0, sizeof (serverAddrv4));
bind4_address);
if (1 != inet_pton (AF_INET, bind4_address, &serverAddrv4.sin_addr))
{
- GNUNET_free (bind4_address);
+ MEMDEBUG_free (bind4_address, __LINE__);
return NULL;
}
}
{
LOG (GNUNET_ERROR_TYPE_ERROR, _("Invalid IPv6 address: `%s'\n"),
bind6_address);
- GNUNET_free_non_null (bind4_address);
- GNUNET_free (bind6_address);
+ MEMDEBUG_free_non_null (bind4_address, __LINE__);
+ MEMDEBUG_free (bind6_address, __LINE__);
return NULL;
}
}
-
/* Enable neighbour discovery */
broadcast = GNUNET_CONFIGURATION_get_value_yesno (env->cfg, "transport-udp",
"BROADCAST");
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
+ {
+ MEMDEBUG_add_alloc (fancy_interval, strlen (fancy_interval)+ 1, __LINE__);
+ if (GNUNET_SYSERR == GNUNET_STRINGS_fancy_time_to_relative(fancy_interval, &interval))
+ {
+ interval = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30);
+ }
+ MEMDEBUG_free (fancy_interval, __LINE__);
+ }
/* Maximum datarate */
if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-udp",
udp_max_bps = 1024 * 1024 * 50; /* 50 MB/s == infinity for practical purposes */
}
- plugin = GNUNET_malloc (sizeof (struct Plugin));
- api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
+ p = MEMDEBUG_malloc (sizeof (struct Plugin), __LINE__ );
+ api = MEMDEBUG_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions), __LINE__ );
- GNUNET_BANDWIDTH_tracker_init (&plugin->tracker,
+ GNUNET_BANDWIDTH_tracker_init (&p->tracker,
GNUNET_BANDWIDTH_value_init ((uint32_t)udp_max_bps), 30);
-
-
- plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
- plugin->defrag_ctxs = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- plugin->mst = GNUNET_SERVER_mst_create (&process_inbound_tokenized_messages, plugin);
- plugin->port = port;
- plugin->aport = aport;
- plugin->broadcast_interval = interval;
- plugin->enable_ipv6 = enable_v6;
- plugin->env = env;
-
- api->cls = plugin;
+ p->sessions = GNUNET_CONTAINER_multihashmap_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);
+ p->port = port;
+ p->aport = aport;
+ p->broadcast_interval = interval;
+ p->enable_ipv6 = enable_v6;
+ p->env = env;
+
+ plugin = p;
+
+ api->cls = p;
api->send = NULL;
api->disconnect = &udp_disconnect;
api->address_pretty_printer = &udp_plugin_address_pretty_printer;
api->send = &udp_plugin_send;
LOG (GNUNET_ERROR_TYPE_DEBUG, "Setting up sockets\n");
- res = setup_sockets (plugin, &serverAddrv6, &serverAddrv4);
- if ((res == 0) || ((plugin->sockv4 == NULL) && (plugin->sockv6 == NULL)))
+ 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 (plugin);
- GNUNET_free (api);
+ MEMDEBUG_free (p, __LINE__);
+ MEMDEBUG_free (api, __LINE__);
return NULL;
}
if (broadcast == GNUNET_YES)
{
LOG (GNUNET_ERROR_TYPE_DEBUG, "Starting broadcasting\n");
- setup_broadcast (plugin, &serverAddrv6, &serverAddrv4);
+ setup_broadcast (p, &serverAddrv6, &serverAddrv4);
}
- GNUNET_free_non_null (bind4_address);
- GNUNET_free_non_null (bind6_address);
+ MEMDEBUG_free_non_null (bind4_address, __LINE__);
+ MEMDEBUG_free_non_null (bind6_address, __LINE__);
return api;
}
GNUNET_CONTAINER_heap_remove_node (node);
GNUNET_DEFRAGMENT_context_destroy(d_ctx->defrag);
- GNUNET_free (d_ctx);
+ MEMDEBUG_free (d_ctx, __LINE__);
return GNUNET_YES;
}
if (NULL == plugin)
{
- GNUNET_free (api);
+ MEMDEBUG_free (api, __LINE__);
return NULL;
}
stop_broadcast (plugin);
-
if (plugin->select_task != GNUNET_SCHEDULER_NO_TASK)
{
GNUNET_SCHEDULER_cancel (plugin->select_task);
}
/* 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);
+ MEMDEBUG_free (udpw, __LINE__);
+
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);
+ MEMDEBUG_free (udpw, __LINE__);
+
udpw = tmp;
}
GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
plugin->nat = NULL;
- GNUNET_free (plugin);
- GNUNET_free (api);
+ MEMDEBUG_free (plugin, __LINE__);
+ MEMDEBUG_free (api, __LINE__);
+#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;
}