/*
This file is part of GNUnet
- (C) 2010-2014 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2010-2015 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
/**
* Timeout task
*/
- struct GNUNET_SCHEDULER_Task * timeout_task;
+ struct GNUNET_SCHEDULER_Task *timeout_task;
/**
- * IPv6 address
+ * Is this an IPv6 address?
*/
int ipv6;
/**
* Session timeout task
*/
- struct GNUNET_SCHEDULER_Task * timeout_task;
+ struct GNUNET_SCHEDULER_Task *timeout_task;
/**
* When does this session time out?
*/
struct GNUNET_TIME_Relative last_expected_msg_delay;
- /**
- * Address metrics (as set by the "update_address_metrics" by
- * the environment).
- */
- struct GNUNET_ATS_Information ats;
-
/**
* Our own address.
*/
*/
unsigned int rc;
+ /**
+ * Network type of the address.
+ */
+ enum GNUNET_ATS_Network_Type scope;
+
/**
* Is this session about to be destroyed (sometimes we cannot
* destroy a session immediately as below us on the stack
*/
struct GNUNET_PeerIdentity sender;
- /**
- * Source address.
- */
- const void *arg;
-
/**
* Associated session.
*/
struct Session *session;
- /**
- * Number of bytes in source address.
- */
- size_t args;
-
};
/**
struct DefragContext *rc;
/**
- * Address to find.
+ * Session associated with this context.
*/
- const struct sockaddr *addr;
+ struct Session *session;
/**
- *
+ * Address to find.
*/
- struct Session *session;
+ const union UdpAddress *udp_addr;
/**
- * Number of bytes in @e addr.
+ * Number of bytes in @e udp_addr.
*/
- socklen_t addr_len;
+ size_t udp_addr_len;
};
*/
struct GNUNET_DEFRAGMENT_Context *defrag;
+ /**
+ * Reference to master plugin struct.
+ */
+ struct Plugin *plugin;
+
+ /**
+ * Node in the defrag heap.
+ */
+ struct GNUNET_CONTAINER_HeapNode *hnode;
+
+ /**
+ * Who's message(s) are we defragmenting here?
+ * Only initialized once we succeeded and
+ * @e have_sender is set.
+ */
+ struct GNUNET_PeerIdentity sender;
+
/**
* Source address this receive context is for (allocated at the
* end of the struct).
*/
- const struct sockaddr *src_addr;
+ const union UdpAddress *udp_addr;
/**
- * Reference to master plugin struct.
+ * Length of @e udp_addr.
*/
- struct Plugin *plugin;
+ size_t udp_addr_len;
/**
- * Node in the defrag heap.
+ * Network type the address belongs to.
*/
- struct GNUNET_CONTAINER_HeapNode *hnode;
+ enum GNUNET_ATS_Network_Type network_type;
/**
- * Length of @e src_addr.
+ * Has the @e sender field been initialized yet?
*/
- size_t addr_len;
+ int have_sender;
};
/**
- * UDP ACK Message-Packet header (after defragmentation).
+ * UDP ACK Message-Packet header.
*/
struct UDP_ACK_Message
{
if (NULL == plugin->sic)
return;
+ if (GNUNET_YES == session->in_destroy)
+ return; /* already destroyed, just RC>0 left-over actions */
memset (&info, 0, sizeof (info));
info.state = state;
info.is_inbound = GNUNET_SYSERR; /* hard to say */
* to override the address again.
*
* @param cls closure
- * @param addr binary address
- * @param addrlen length of the address
+ * @param addr binary address (a `union UdpAddress`)
+ * @param addrlen length of the @a addr
* @return string representing the same address
*/
const char *
inet_ntop (af, sb, buf, INET6_ADDRSTRLEN);
GNUNET_snprintf (rbuf, sizeof(rbuf),
- (af == AF_INET6) ? "%s.%u.[%s]:%u" : "%s.%u.%s:%u", PLUGIN_NAME, options,
- buf, port);
+ (af == AF_INET6)
+ ? "%s.%u.[%s]:%u"
+ : "%s.%u.%s:%u",
+ PLUGIN_NAME,
+ options,
+ buf,
+ port);
return rbuf;
}
* Function called to convert a string address to
* a binary address.
*
- * @param cls closure ('struct Plugin*')
+ * @param cls closure (`struct Plugin *`)
* @param addr string address
* @param addrlen length of the address
* @param buf location to store the buffer
* @param cls closure with the `struct Plugin *`
* @param type name of the transport that generated the address
* @param addr one of the addresses of the host, NULL for the last address
- * the specific address format depends on the transport
+ * the specific address format depends on the transport;
+ * a `union UdpAddress`
* @param addrlen length of the address
* @param numeric should (IP) addresses be displayed in numeric form?
* @param timeout after how long should we give up?
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Calling continuation for %u byte message to `%s' with result %s\n",
- udpw->payload_size, GNUNET_i2s (&udpw->session->target),
+ udpw->payload_size,
+ GNUNET_i2s (&udpw->session->target),
(GNUNET_OK == result) ? "OK" : "SYSERR");
if (udpw->msg_size >= udpw->payload_size)
if (NULL != udpw->cont)
{
/* Transport continuation */
- udpw->cont (udpw->cont_cls, &udpw->session->target, result,
- udpw->payload_size, udpw->msg_size);
+ 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);
+ "# 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);
+ "# 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);
+ "# UDP, unfragmented msgs, bytes overhead, sent, success",
+ overhead,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes overhead, sent", overhead, GNUNET_NO);
+ "# UDP, total, bytes overhead, sent",
+ overhead,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes payload, sent", udpw->payload_size, GNUNET_NO);
+ "# UDP, total, bytes payload, sent",
+ udpw->payload_size,
+ GNUNET_NO);
break;
case UMT_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);
+ 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);
+ "# 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);
+ "# 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);
+ "# UDP, fragmented msgs, bytes overhead, sent, success",
+ overhead,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes overhead, sent", overhead, GNUNET_NO);
+ "# UDP, total, bytes overhead, sent",
+ overhead,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes payload, sent", udpw->payload_size, GNUNET_NO);
+ "# UDP, total, bytes payload, sent",
+ udpw->payload_size,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, fragmented msgs, messages, pending", -1, GNUNET_NO);
+ "# UDP, fragmented msgs, messages, pending",
+ -1,
+ GNUNET_NO);
break;
case UMT_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);
+ 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);
+ "# 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);
+ "# UDP, fragmented msgs, fragments bytes, sent, success",
+ udpw->msg_size,
+ GNUNET_NO);
break;
case UMT_MSG_ACK:
/* No continuation */
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, ACK msgs, messages, sent, success", 1, GNUNET_NO);
+ "# 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);
+ "# UDP, ACK msgs, bytes overhead, sent, success",
+ overhead,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes overhead, sent", overhead, GNUNET_NO);
+ "# UDP, total, bytes overhead, sent",
+ overhead,
+ GNUNET_NO);
break;
default:
GNUNET_break(0);
case UMT_MSG_UNFRAGMENTED:
/* Unfragmented message: failed to send */
if (NULL != udpw->cont)
- udpw->cont (udpw->cont_cls, &udpw->session->target, result,
- udpw->payload_size, overhead);
+ 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);
+ "# 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);
+ "# 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);
+ "# UDP, unfragmented msgs, bytes overhead, sent, failure",
+ overhead,
+ GNUNET_NO);
break;
case UMT_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_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);
+ "# 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);
+ "# 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);
+ "# 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);
+ "# UDP, fragmented msgs, bytes payload, sent, failure",
+ overhead,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, fragmented msgs, messages, pending", -1, GNUNET_NO);
+ "# UDP, fragmented msgs, messages, pending",
+ -1,
+ GNUNET_NO);
break;
case UMT_MSG_FRAGMENTED:
- GNUNET_assert(NULL != udpw->frag_ctx);
+ 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);
+ "# 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);
+ "# UDP, fragmented msgs, fragments bytes, sent, failure",
+ udpw->msg_size,
+ GNUNET_NO);
break;
case UMT_MSG_ACK:
/* ACK message: failed to send */
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, ACK msgs, messages, sent, failure", 1, GNUNET_NO);
+ "# UDP, ACK msgs, messages, sent, failure",
+ 1,
+ GNUNET_NO);
break;
default:
GNUNET_break(0);
* traffic.
*
* @param cls closure, should be our handle to the Plugin
- * @param addr pointer to the address
+ * @param addr pointer to a `union UdpAddress`
* @param addrlen length of @a addr
* @return #GNUNET_OK if this is a plausible address for this peer
* and transport, #GNUNET_SYSERR if not
struct IPv4UdpAddress *v4;
struct IPv6UdpAddress *v6;
- if ((addrlen != sizeof(struct IPv4UdpAddress))
- && (addrlen != sizeof(struct IPv6UdpAddress)))
+ if ( (addrlen != sizeof(struct IPv4UdpAddress)) &&
+ (addrlen != sizeof(struct IPv6UdpAddress)) )
{
GNUNET_break_op(0);
return GNUNET_SYSERR;
v4 = (struct IPv4UdpAddress *) addr;
if (GNUNET_OK != check_port (plugin, ntohs (v4->u4_port)))
return GNUNET_SYSERR;
- if (GNUNET_OK
- != GNUNET_NAT_test_address (plugin->nat, &v4->ipv4_addr,
- sizeof(struct in_addr)))
+ if (GNUNET_OK !=
+ GNUNET_NAT_test_address (plugin->nat,
+ &v4->ipv4_addr,
+ sizeof (struct in_addr)))
return GNUNET_SYSERR;
}
else
/**
- * FIXME.
+ * We have completed our (attempt) to transmit a message
+ * that had to be fragmented -- either because we got an
+ * ACK saying that all fragments were received, or because
+ * of timeout / disconnect. Clean up our state.
+ *
+ * @param fc fragmentation context to clean up
+ * @param result #GNUNET_OK if we succeeded (got ACK),
+ * #GNUNET_SYSERR if the transmission failed
*/
static void
fragmented_message_done (struct UDP_FragmentationContext *fc,
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);
- }
+ if ( (udpw->frag_ctx != NULL) &&
+ (udpw->frag_ctx == s->frag_ctx) )
+ {
+ dequeue (plugin, udpw);
+ call_continuation (udpw, GNUNET_SYSERR);
+ GNUNET_free (udpw);
+ }
udpw = tmp;
}
}
*
* @param cls the `struct FindReceiveContext`
* @param node internal node of the heap
- * @param element value stored at the node (a 'struct ReceiveContext')
+ * @param element value stored at the node (a `struct ReceiveContext`)
* @param cost cost associated with the node
* @return #GNUNET_YES if we should continue to iterate,
* #GNUNET_NO if not.
struct FindReceiveContext *frc = cls;
struct DefragContext *e = element;
- if ((frc->addr_len == e->addr_len)
- && (0 == memcmp (frc->addr, e->src_addr, frc->addr_len)))
+ if ( (frc->udp_addr_len == e->udp_addr_len) &&
+ (0 == memcmp (frc->udp_addr,
+ e->udp_addr,
+ frc->udp_addr_len)) )
{
frc->rc = e;
return GNUNET_NO;
struct FindReceiveContext frc;
GNUNET_assert (GNUNET_YES != s->in_destroy);
- LOG(GNUNET_ERROR_TYPE_DEBUG,
- "Session %p to peer `%s' address ended\n", s,
- GNUNET_i2s (&s->target),
- udp_address_to_string (NULL,
- s->address->address,
- s->address->address_length));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Session %p to peer `%s' address ended\n",
+ s,
+ GNUNET_i2s (&s->target),
+ udp_address_to_string (plugin,
+ s->address->address,
+ s->address->address_length));
/* stop timeout task */
if (NULL != s->timeout_task)
{
if (NULL != s->frag_ctx)
{
/* Remove fragmented message due to disconnect */
- fragmented_message_done (s->frag_ctx, GNUNET_SYSERR);
+ fragmented_message_done (s->frag_ctx,
+ GNUNET_SYSERR);
}
frc.rc = NULL;
- frc.addr = s->address->address;
- frc.addr_len = s->address->address_length;
+ frc.udp_addr = s->address->address;
+ frc.udp_addr_len = s->address->address_length;
/* Lookup existing receive context for this address */
if (NULL != plugin->defrag_ctxs)
{
s);
return;
}
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Session %p was idle for %s, disconnecting\n",
- s,
- GNUNET_STRINGS_relative_time_to_string (UDP_SESSION_TIME_OUT,
- GNUNET_YES));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Session %p was idle for %s, disconnecting\n",
+ s,
+ GNUNET_STRINGS_relative_time_to_string (UDP_SESSION_TIME_OUT,
+ GNUNET_YES));
/* call session destroy function */
udp_disconnect_session (plugin, s);
}
}
-/**
- * FIXME.
- */
-static struct Session *
-create_session (struct Plugin *plugin,
- const struct GNUNET_HELLO_Address *address)
-{
- struct Session *s;
-
- s = GNUNET_new (struct Session);
- s->plugin = plugin;
- s->address = GNUNET_HELLO_address_copy (address);
- s->target = address->peer;
- 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->timeout = GNUNET_TIME_relative_to_absolute (UDP_SESSION_TIME_OUT);
- s->timeout_task = GNUNET_SCHEDULER_add_delayed (UDP_SESSION_TIME_OUT,
- &session_timeout, s);
- return s;
-}
-
-
/**
* Function obtain the network type for a session
*
- * @param cls closure ('struct Plugin*')
+ * @param cls closure (`struct Plugin *`)
* @param session the session
* @return the network type
*/
udp_get_network (void *cls,
struct Session *session)
{
- return ntohl (session->ats.value);
+ return session->scope;
}
void *value)
{
struct SessionCompareContext *cctx = cls;
- const struct GNUNET_HELLO_Address *address = cctx->address;
struct Session *s = value;
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Comparing address %s <-> %s\n",
- udp_address_to_string (NULL,
- address->address,
- address->address_length),
- udp_address_to_string (NULL,
- s->address->address,
- s->address->address_length));
- if (0 == GNUNET_HELLO_address_cmp(s->address, cctx->address))
+ if (0 == GNUNET_HELLO_address_cmp (s->address,
+ cctx->address))
{
cctx->res = s;
return GNUNET_NO;
/**
- * Creates a new outbound session the transport service will use to
- * send data to the peer
+ * Locate an existing session the transport service is using to
+ * send data to another peer. Performs some basic sanity checks
+ * on the address and then tries to locate a matching session.
*
* @param cls the plugin
- * @param address the address
- * @return the session or NULL of max connections exceeded
+ * @param address the address we should locate the session by
+ * @return the session if it exists, or NULL if it is not found
*/
static struct Session *
udp_plugin_lookup_session (void *cls,
const struct GNUNET_HELLO_Address *address)
{
- struct Plugin * plugin = cls;
- struct IPv6UdpAddress *udp_a6;
- struct IPv4UdpAddress *udp_a4;
+ struct Plugin *plugin = cls;
+ const struct IPv6UdpAddress *udp_a6;
+ const struct IPv4UdpAddress *udp_a4;
struct SessionCompareContext cctx;
if ( (NULL == address->address) ||
(address->address_length != sizeof (struct IPv6UdpAddress))))
{
LOG (GNUNET_ERROR_TYPE_WARNING,
- _("Trying to create session for address of unexpected length %u (should be %u or %u)\n"),
+ "Trying to locate session for address of unexpected length %u (should be %u or %u)\n",
address->address_length,
sizeof (struct IPv4UdpAddress),
sizeof (struct IPv6UdpAddress));
if (address->address_length == sizeof(struct IPv4UdpAddress))
{
- if (plugin->sockv4 == NULL)
+ if (NULL == plugin->sockv4)
return NULL;
- udp_a4 = (struct IPv4UdpAddress *) address->address;
- if (udp_a4->u4_port == 0)
+ udp_a4 = (const struct IPv4UdpAddress *) address->address;
+ if (0 == udp_a4->u4_port)
return NULL;
}
if (address->address_length == sizeof(struct IPv6UdpAddress))
{
- if (plugin->sockv6 == NULL)
+ if (NULL == plugin->sockv6)
return NULL;
- udp_a6 = (struct IPv6UdpAddress *) address->address;
- if (udp_a6->u6_port == 0)
+ udp_a6 = (const struct IPv6UdpAddress *) address->address;
+ if (0 == udp_a6->u6_port)
return NULL;
}
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_multipeermap_get_multiple (plugin->sessions, &address->peer,
- session_cmp_it, &cctx);
- if (cctx.res != NULL )
+ udp_address_to_string (plugin,
+ address->address,
+ address->address_length));
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->sessions,
+ &address->peer,
+ &session_cmp_it,
+ &cctx);
+ if (NULL != cctx.res)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Found existing session %p\n",
/**
- * Context to lookup a session based on a IP address
- */
-struct LookupContext
-{
- /**
- * The result
- */
- struct Session *res;
-
- /**
- * The socket address
- */
- const struct sockaddr *address;
-
- /**
- * The socket address length
- */
- size_t addr_len;
-
- /**
- * Is a fragmentation context required for the session
- */
- int must_have_frag_ctx;
-};
-
-
-/**
- * Find a session with a matching address.
- * FIXME: very similar code to #udp_plugin_lookup_session() above.
- * Unify?
+ * Allocate a new session for the given endpoint address.
+ * Note that this function does not inform the service
+ * of the new session, this is the responsibility of the
+ * caller (if needed).
*
- * @param cls the `struct LookupContext *`
- * @param key peer identity (unused)
- * @param value the `struct Session *`
- * @return #GNUNET_NO if we found the session, #GNUNET_OK if not
+ * @param cls the `struct Plugin`
+ * @param address address of the other peer to use
+ * @param network_type network type the address belongs to
+ * @return NULL on error, otherwise session handle
*/
-static int
-lookup_session_by_sockaddr_it (void *cls,
- const struct GNUNET_PeerIdentity *key,
- void *value)
-{
- struct LookupContext *l_ctx = cls;
- struct Session *s = value;
- struct IPv4UdpAddress u4;
- struct IPv6UdpAddress u6;
- void *arg;
- size_t args;
-
- /* convert address */
- switch (l_ctx->address->sa_family)
- {
- case AF_INET:
- GNUNET_assert(l_ctx->addr_len == sizeof(struct sockaddr_in));
- memset (&u4, 0, sizeof(u4));
- u6.options = htonl (0);
- u4.ipv4_addr = ((struct sockaddr_in *) l_ctx->address)->sin_addr.s_addr;
- u4.u4_port = ((struct sockaddr_in *) l_ctx->address)->sin_port;
- arg = &u4;
- args = sizeof(u4);
- break;
- case AF_INET6:
- GNUNET_assert(l_ctx->addr_len == sizeof(struct sockaddr_in6));
- memset (&u6, 0, sizeof(u6));
- u6.options = htonl (0);
- u6.ipv6_addr = ((struct sockaddr_in6 *) l_ctx->address)->sin6_addr;
- u6.u6_port = ((struct sockaddr_in6 *) l_ctx->address)->sin6_port;
- arg = &u6;
- args = sizeof(u6);
- break;
- default:
- GNUNET_break(0);
- return GNUNET_YES;
- }
- if ( (GNUNET_YES == l_ctx->must_have_frag_ctx) &&
- (NULL == s->frag_ctx))
- return GNUNET_YES;
-
- /* Does not compare peer identities but addresses */
- if ((args == s->address->address_length) &&
- (0 == memcmp (arg, s->address->address, args)))
- {
- l_ctx->res = s;
- return GNUNET_NO;
- }
- return GNUNET_YES;
-}
-
-
static struct Session *
udp_plugin_create_session (void *cls,
- const struct GNUNET_HELLO_Address *address)
+ const struct GNUNET_HELLO_Address *address,
+ enum GNUNET_ATS_Network_Type network_type)
{
struct Plugin *plugin = cls;
struct Session *s;
- struct IPv4UdpAddress *udp_v4;
- struct IPv6UdpAddress *udp_v6;
-
- s = create_session (plugin, address);
- if (sizeof (struct IPv4UdpAddress) == address->address_length)
- {
- struct sockaddr_in v4;
- udp_v4 = (struct IPv4UdpAddress *) address->address;
- memset (&v4, '\0', sizeof (v4));
- v4.sin_family = AF_INET;
-#if HAVE_SOCKADDR_IN_SIN_LEN
- v4.sin_len = sizeof (struct sockaddr_in);
-#endif
- v4.sin_port = udp_v4->u4_port;
- v4.sin_addr.s_addr = udp_v4->ipv4_addr;
- s->ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
- s->ats.value = htonl (plugin->env->get_address_type (plugin->env->cls,
- (const struct sockaddr *) &v4,
- sizeof (v4)));
- }
- else if (sizeof (struct IPv6UdpAddress) == address->address_length)
- {
- struct sockaddr_in6 v6;
- udp_v6 = (struct IPv6UdpAddress *) address->address;
- memset (&v6, '\0', sizeof (v6));
- v6.sin6_family = AF_INET6;
-#if HAVE_SOCKADDR_IN_SIN_LEN
- v6.sin6_len = sizeof (struct sockaddr_in6);
-#endif
- v6.sin6_port = udp_v6->u6_port;
- v6.sin6_addr = udp_v6->ipv6_addr;
- s->ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
- s->ats.value = htonl (plugin->env->get_address_type (plugin->env->cls,
- (const struct sockaddr *) &v6,
- sizeof (v6)));
- }
+ s = GNUNET_new (struct Session);
+ s->plugin = plugin;
+ s->address = GNUNET_HELLO_address_copy (address);
+ s->target = address->peer;
+ 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->timeout = GNUNET_TIME_relative_to_absolute (UDP_SESSION_TIME_OUT);
+ s->timeout_task = GNUNET_SCHEDULER_add_delayed (UDP_SESSION_TIME_OUT,
+ &session_timeout, s);
+ s->scope = network_type;
- if (NULL == s)
- return NULL; /* protocol not supported or address invalid */
- LOG(GNUNET_ERROR_TYPE_DEBUG,
- "Creating new %s session %p for peer `%s' address `%s'\n",
- GNUNET_HELLO_address_check_option (address, GNUNET_HELLO_ADDRESS_INFO_INBOUND) ? "inbound" : "outbound",
- s, GNUNET_i2s (&address->peer),
- udp_address_to_string( NULL,address->address,address->address_length));
- GNUNET_assert(
- GNUNET_OK == GNUNET_CONTAINER_multipeermap_put (plugin->sessions, &s->target, s, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
- GNUNET_STATISTICS_set (plugin->env->stats, "# UDP sessions active",
- GNUNET_CONTAINER_multipeermap_size (plugin->sessions), GNUNET_NO);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Creating new session %p for peer `%s' address `%s'\n",
+ s,
+ GNUNET_i2s (&address->peer),
+ udp_address_to_string (plugin,
+ address->address,
+ address->address_length));
+ GNUNET_assert(GNUNET_OK ==
+ GNUNET_CONTAINER_multipeermap_put (plugin->sessions,
+ &s->target,
+ s,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE));
+ GNUNET_STATISTICS_set (plugin->env->stats,
+ "# UDP sessions active",
+ GNUNET_CONTAINER_multipeermap_size (plugin->sessions),
+ GNUNET_NO);
return s;
}
* notify the plugin that a session is still active and in use and
* therefore the session timeout for this session has to be updated
*
- * @param cls closure
+ * @param cls closure with the `struct Plugin`
* @param peer which peer was the session for
* @param session which session is being updated
*/
/**
- * Creates a new outbound session the transport service will use to send data to the
- * peer
+ * Creates a new outbound session the transport service will use to
+ * send data to the peer.
*
- * @param cls the plugin
+ * @param cls the `struct Plugin *`
* @param address the address
* @return the session or NULL of max connections exceeded
*/
udp_plugin_get_session (void *cls,
const struct GNUNET_HELLO_Address *address)
{
+ struct Plugin *plugin = cls;
struct Session *s;
+ enum GNUNET_ATS_Network_Type network_type;
+ struct IPv4UdpAddress *udp_v4;
+ struct IPv6UdpAddress *udp_v6;
if (NULL == address)
{
- GNUNET_break(0);
+ GNUNET_break (0);
return NULL;
}
if ( (address->address_length != sizeof(struct IPv4UdpAddress)) &&
(address->address_length != sizeof(struct IPv6UdpAddress)) )
+ {
+ GNUNET_break_op (0);
return NULL;
-
- /* otherwise create new */
- if (NULL != (s = udp_plugin_lookup_session (cls, address)))
+ }
+ if (NULL != (s = udp_plugin_lookup_session (cls,
+ address)))
return s;
- return udp_plugin_create_session (cls, address);
+
+ /* need to create new session */
+ if (sizeof (struct IPv4UdpAddress) == address->address_length)
+ {
+ struct sockaddr_in v4;
+
+ udp_v4 = (struct IPv4UdpAddress *) address->address;
+ memset (&v4, '\0', sizeof (v4));
+ v4.sin_family = AF_INET;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ v4.sin_len = sizeof (struct sockaddr_in);
+#endif
+ v4.sin_port = udp_v4->u4_port;
+ v4.sin_addr.s_addr = udp_v4->ipv4_addr;
+ network_type = plugin->env->get_address_type (plugin->env->cls,
+ (const struct sockaddr *) &v4,
+ sizeof (v4));
+ }
+ if (sizeof (struct IPv6UdpAddress) == address->address_length)
+ {
+ struct sockaddr_in6 v6;
+
+ udp_v6 = (struct IPv6UdpAddress *) address->address;
+ memset (&v6, '\0', sizeof (v6));
+ v6.sin6_family = AF_INET6;
+#if HAVE_SOCKADDR_IN_SIN_LEN
+ v6.sin6_len = sizeof (struct sockaddr_in6);
+#endif
+ v6.sin6_port = udp_v6->u6_port;
+ v6.sin6_addr = udp_v6->ipv6_addr;
+ network_type = plugin->env->get_address_type (plugin->env->cls,
+ (const struct sockaddr *) &v6,
+ sizeof (v6));
+ }
+ return udp_plugin_create_session (cls,
+ address,
+ network_type);
}
else
{
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes in buffers", udpw->msg_size, GNUNET_NO);
+ "# UDP, total, bytes in buffers",
+ udpw->msg_size,
+ GNUNET_NO);
plugin->bytes_in_buffer += udpw->msg_size;
}
GNUNET_STATISTICS_update (plugin->env->stats,
struct UDP_MessageWrapper * udpw;
struct UDPMessage *udp;
char mbuf[udpmlen];
- GNUNET_assert(plugin != NULL);
- GNUNET_assert(s != NULL);
if ( (s->address->address_length == sizeof(struct IPv6UdpAddress)) &&
(plugin->sockv6 == NULL) )
"UDP transmits %u-byte message to `%s' using address `%s'\n",
udpmlen,
GNUNET_i2s (&s->target),
- udp_address_to_string (NULL,
+ udp_address_to_string (plugin,
s->address->address,
s->address->address_length));
struct SourceInformation *si = client;
struct GNUNET_TIME_Relative delay;
- GNUNET_assert(si->session != NULL);
+ GNUNET_assert (NULL != si->session);
if (GNUNET_YES == si->session->in_destroy)
return GNUNET_OK;
/* setup ATS */
- GNUNET_break (ntohl (si->session->ats.value) != GNUNET_ATS_NET_UNSPECIFIED);
reschedule_session_timeout (si->session);
delay = plugin->env->receive (plugin->env->cls,
si->session->address,
si->session,
hdr);
- plugin->env->update_address_metrics (plugin->env->cls,
- si->session->address,
- si->session,
- &si->session->ats, 1);
si->session->flow_delay_for_other_peer = delay;
return GNUNET_OK;
}
*
* @param plugin plugin context
* @param msg the message
- * @param sender_addr sender address
- * @param sender_addr_len number of bytes in @a sender_addr
+ * @param udp_addr sender address
+ * @param udp_addr_len number of bytes in @a udp_addr
+ * @param network_type network type the address belongs to
*/
static void
process_udp_message (struct Plugin *plugin,
const struct UDPMessage *msg,
- const struct sockaddr *sender_addr,
- socklen_t sender_addr_len)
+ const union UdpAddress *udp_addr,
+ size_t udp_addr_len,
+ enum GNUNET_ATS_Network_Type network_type)
{
struct SourceInformation si;
- struct Session * s;
+ struct Session *s;
struct GNUNET_HELLO_Address *address;
- struct IPv4UdpAddress u4;
- struct IPv6UdpAddress u6;
- const void *arg;
- size_t args;
+ GNUNET_break (GNUNET_ATS_NET_UNSPECIFIED != network_type);
if (0 != ntohl (msg->reserved))
{
GNUNET_break_op(0);
return;
}
- /* convert address */
- switch (sender_addr->sa_family)
- {
- 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;
- args = sizeof(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;
- args = sizeof(u6);
- break;
- default:
- GNUNET_break(0);
- return;
- }
- LOG(GNUNET_ERROR_TYPE_DEBUG,
- "Received message with %u bytes from peer `%s' at `%s'\n",
- (unsigned int ) ntohs (msg->header.size), GNUNET_i2s (&msg->sender),
- GNUNET_a2s (sender_addr, sender_addr_len));
-
- address = GNUNET_HELLO_address_allocate ( &msg->sender, PLUGIN_NAME,
- arg, args,
- GNUNET_HELLO_ADDRESS_INFO_INBOUND);
- if (NULL == (s = udp_plugin_lookup_session (plugin, address)))
- {
- s = udp_plugin_create_session (plugin, address);
- plugin->env->session_start (NULL, address, s, NULL, 0);
+ address = GNUNET_HELLO_address_allocate (&msg->sender,
+ PLUGIN_NAME,
+ udp_addr,
+ udp_addr_len,
+ GNUNET_HELLO_ADDRESS_INFO_NONE);
+ if (NULL ==
+ (s = udp_plugin_lookup_session (plugin, address)))
+ {
+ s = udp_plugin_create_session (plugin,
+ address,
+ network_type);
+ plugin->env->session_start (plugin->env->cls,
+ address,
+ s,
+ s->scope);
notify_session_monitor (s->plugin,
s,
GNUNET_TRANSPORT_SS_INIT);
/* iterate over all embedded messages */
si.session = s;
si.sender = msg->sender;
- si.arg = arg;
- si.args = args;
s->rc++;
GNUNET_SERVER_mst_receive (plugin->mst,
&si,
const struct GNUNET_MessageHeader *msg)
{
struct DefragContext *rc = cls;
+ const struct UDPMessage *um;
if (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_MESSAGE)
{
GNUNET_break(0);
return;
}
+ um = (const struct UDPMessage *) msg;
+ rc->sender = um->sender;
+ rc->have_sender = GNUNET_YES;
process_udp_message (rc->plugin,
- (const struct UDPMessage *) msg,
- rc->src_addr,
- rc->addr_len);
+ um,
+ rc->udp_addr,
+ rc->udp_addr_len,
+ rc->network_type);
}
uint32_t delay = 0;
struct UDP_MessageWrapper *udpw;
struct Session *s;
- struct LookupContext l_ctx;
-
- l_ctx.address = rc->src_addr;
- l_ctx.addr_len = rc->addr_len;
- l_ctx.must_have_frag_ctx = GNUNET_NO;
- l_ctx.res = NULL;
- GNUNET_CONTAINER_multipeermap_iterate (rc->plugin->sessions,
- &lookup_session_by_sockaddr_it,
- &l_ctx);
- s = l_ctx.res;
+ struct GNUNET_HELLO_Address *address;
+
+ if (GNUNET_NO == rc->have_sender)
+ {
+ /* tried to defragment but never succeeded, hence will not ACK */
+ GNUNET_break_op (0);
+ return;
+ }
+ address = GNUNET_HELLO_address_allocate (&rc->sender,
+ PLUGIN_NAME,
+ rc->udp_addr,
+ rc->udp_addr_len,
+ GNUNET_HELLO_ADDRESS_INFO_NONE);
+ s = udp_plugin_lookup_session (rc->plugin,
+ address);
+ GNUNET_HELLO_address_free (address);
if (NULL == s)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Trying to transmit ACK to peer `%s' but not session found!\n",
- GNUNET_a2s(rc->src_addr, rc->addr_len));
-
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ "Trying to transmit ACK to peer `%s' but no session found!\n",
+ udp_address_to_string (rc->plugin,
+ rc->udp_addr,
+ rc->udp_addr_len));
GNUNET_CONTAINER_heap_remove_node (rc->hnode);
GNUNET_DEFRAGMENT_context_destroy (rc->defrag);
GNUNET_free (rc);
-
return;
}
if (s->flow_delay_for_other_peer.rel_value_us <= UINT32_MAX)
LOG (GNUNET_ERROR_TYPE_DEBUG,
"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)),
+ udp_address_to_string (rc->plugin,
+ rc->udp_addr,
+ rc->udp_addr_len),
GNUNET_STRINGS_relative_time_to_string (s->flow_delay_for_other_peer,
GNUNET_YES));
udpw = GNUNET_malloc (sizeof (struct UDP_MessageWrapper) + msize);
/**
- * FIXME.
- */
-static void
-read_process_msg (struct Plugin *plugin,
- const struct GNUNET_MessageHeader *msg,
- const struct sockaddr *addr,
- socklen_t fromlen)
-{
- if (ntohs (msg->size) < sizeof(struct UDPMessage))
- {
- GNUNET_break_op(0);
- return;
- }
- process_udp_message (plugin,
- (const struct UDPMessage *) msg,
- addr,
- fromlen);
-}
-
-
-/**
- * FIXME.
+ * Handle an ACK message.
+ *
+ * @param plugin the UDP plugin
+ * @param msg the (presumed) UDP ACK message
+ * @param udp_addr sender address
+ * @param udp_addr_len number of bytes in @a udp_addr
*/
static void
read_process_ack (struct Plugin *plugin,
const struct GNUNET_MessageHeader *msg,
- const struct sockaddr *addr,
- socklen_t fromlen)
+ const union UdpAddress *udp_addr,
+ socklen_t udp_addr_len)
{
const struct GNUNET_MessageHeader *ack;
const struct UDP_ACK_Message *udp_ack;
- struct LookupContext l_ctx;
+ struct GNUNET_HELLO_Address *address;
struct Session *s;
struct GNUNET_TIME_Relative flow_delay;
return;
}
udp_ack = (const struct UDP_ACK_Message *) msg;
-
- /* Lookup session based on sockaddr */
- l_ctx.address = addr;
- l_ctx.addr_len = fromlen;
- l_ctx.res = NULL;
- l_ctx.must_have_frag_ctx = GNUNET_YES;
- GNUNET_CONTAINER_multipeermap_iterate (plugin->sessions,
- &lookup_session_by_sockaddr_it, &l_ctx);
- s = l_ctx.res;
- if ((NULL == s) || (NULL == s->frag_ctx))
+ address = GNUNET_HELLO_address_allocate (&udp_ack->sender,
+ PLUGIN_NAME,
+ udp_addr,
+ udp_addr_len,
+ GNUNET_HELLO_ADDRESS_INFO_NONE);
+ s = udp_plugin_lookup_session (plugin,
+ address);
+ if (NULL == s)
+ {
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "UDP session of address %s for ACK not found\n",
+ udp_address_to_string (plugin,
+ address->address,
+ address->address_length));
+ GNUNET_HELLO_address_free (address);
+ return;
+ }
+ if (NULL == s->frag_ctx)
{
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Fragmentation context of address %s for ACK not found\n",
+ udp_address_to_string (plugin,
+ address->address,
+ address->address_length));
+ GNUNET_HELLO_address_free (address);
return;
}
+ GNUNET_HELLO_address_free (address);
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));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "We received a sending delay of %s for %s\n",
+ GNUNET_STRINGS_relative_time_to_string (flow_delay,
+ GNUNET_YES),
+ GNUNET_i2s (&udp_ack->sender));
s->flow_delay_from_other_peer = GNUNET_TIME_relative_to_absolute (flow_delay);
ack = (const struct GNUNET_MessageHeader *) &udp_ack[1];
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))
+ 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 (addr, fromlen));
+ (unsigned int ) ntohs (msg->size),
+ GNUNET_i2s (&udp_ack->sender),
+ udp_address_to_string (plugin,
+ udp_addr,
+ udp_addr_len));
/* Expect more ACKs to arrive */
return;
}
- LOG(GNUNET_ERROR_TYPE_DEBUG, "Message full ACK'ed\n",
- (unsigned int ) ntohs (msg->size), GNUNET_i2s (&udp_ack->sender),
- GNUNET_a2s (addr, fromlen));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Message from %s at %s full ACK'ed\n",
+ GNUNET_i2s (&udp_ack->sender),
+ udp_address_to_string (plugin,
+ udp_addr,
+ udp_addr_len));
/* Remove fragmented message after successful sending */
- fragmented_message_done (s->frag_ctx, GNUNET_OK);
+ fragmented_message_done (s->frag_ctx,
+ GNUNET_OK);
}
/**
- * FIXME.
+ * We received a fragment, process it.
+ *
+ * @param plugin our plugin
+ * @param msg a message of type #GNUNET_MESSAGE_TYPE_FRAGMENT
+ * @param udp_addr sender address
+ * @param udp_addr_len number of bytes in @a udp_addr
+ * @param network_type network type the address belongs to
*/
static void
read_process_fragment (struct Plugin *plugin,
const struct GNUNET_MessageHeader *msg,
- const struct sockaddr *addr,
- socklen_t fromlen)
+ const union UdpAddress *udp_addr,
+ size_t udp_addr_len,
+ enum GNUNET_ATS_Network_Type network_type)
{
struct DefragContext *d_ctx;
struct GNUNET_TIME_Absolute now;
struct FindReceiveContext frc;
frc.rc = NULL;
- frc.addr = addr;
- frc.addr_len = fromlen;
+ frc.udp_addr = udp_addr;
+ frc.udp_addr_len = udp_addr_len;
- LOG(GNUNET_ERROR_TYPE_DEBUG, "UDP processes %u-byte fragment from `%s'\n",
- (unsigned int ) ntohs (msg->size), GNUNET_a2s (addr, fromlen));
/* Lookup existing receive context for this address */
GNUNET_CONTAINER_heap_iterate (plugin->defrag_ctxs,
- &find_receive_context, &frc);
+ &find_receive_context,
+ &frc);
now = GNUNET_TIME_absolute_get ();
d_ctx = frc.rc;
- if (d_ctx == NULL )
+ if (NULL == d_ctx)
{
/* Create a new defragmentation context */
- d_ctx = GNUNET_malloc (sizeof (struct DefragContext) + fromlen);
- memcpy (&d_ctx[1], addr, fromlen);
- d_ctx->src_addr = (const struct sockaddr *) &d_ctx[1];
- d_ctx->addr_len = fromlen;
+ d_ctx = GNUNET_malloc (sizeof (struct DefragContext) + udp_addr_len);
+ memcpy (&d_ctx[1],
+ udp_addr,
+ udp_addr_len);
+ d_ctx->udp_addr = (const union UdpAddress *) &d_ctx[1];
+ d_ctx->udp_addr_len = udp_addr_len;
+ d_ctx->network_type = network_type;
d_ctx->plugin = plugin;
d_ctx->defrag = GNUNET_DEFRAGMENT_context_create (plugin->env->stats,
- UDP_MTU, UDP_MAX_MESSAGES_IN_DEFRAG, d_ctx, &fragment_msg_proc,
- &ack_proc);
- d_ctx->hnode = GNUNET_CONTAINER_heap_insert (plugin->defrag_ctxs, d_ctx,
+ UDP_MTU,
+ UDP_MAX_MESSAGES_IN_DEFRAG,
+ d_ctx,
+ &fragment_msg_proc,
+ &ack_proc);
+ d_ctx->hnode = GNUNET_CONTAINER_heap_insert (plugin->defrag_ctxs,
+ d_ctx,
(GNUNET_CONTAINER_HeapCostType) 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 (addr, fromlen));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Created new defragmentation context for %u-byte fragment from `%s'\n",
+ (unsigned int ) ntohs (msg->size),
+ udp_address_to_string (plugin,
+ udp_addr,
+ udp_addr_len));
}
else
{
- LOG(GNUNET_ERROR_TYPE_DEBUG,
- "Found existing defragmentation context for %u-byte fragment from `%s'\n",
- (unsigned int ) ntohs (msg->size), GNUNET_a2s (addr, fromlen));
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Found existing defragmentation context for %u-byte fragment from `%s'\n",
+ (unsigned int ) ntohs (msg->size),
+ udp_address_to_string (plugin,
+ udp_addr,
+ udp_addr_len));
}
- if (GNUNET_OK == GNUNET_DEFRAGMENT_process_fragment (d_ctx->defrag, msg))
+ 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_heap_update_cost (plugin->defrag_ctxs,
+ d_ctx->hnode,
(GNUNET_CONTAINER_HeapCostType) now.abs_value_us);
}
if (GNUNET_CONTAINER_heap_get_size (plugin->defrag_ctxs) >
- UDP_MAX_SENDER_ADDRESSES_WITH_DEFRAG)
+ UDP_MAX_SENDER_ADDRESSES_WITH_DEFRAG)
{
/* remove 'rc' that was inactive the longest */
d_ctx = GNUNET_CONTAINER_heap_remove_root (plugin->defrag_ctxs);
- GNUNET_assert(NULL != d_ctx);
+ GNUNET_assert (NULL != d_ctx);
GNUNET_DEFRAGMENT_context_destroy (d_ctx->defrag);
- GNUNET_free(d_ctx);
+ GNUNET_free (d_ctx);
}
}
char buf[65536] GNUNET_ALIGN;
ssize_t size;
const struct GNUNET_MessageHeader *msg;
+ struct IPv4UdpAddress v4;
+ struct IPv6UdpAddress v6;
+ const struct sockaddr *sa;
+ const struct sockaddr_in *sa4;
+ const struct sockaddr_in6 *sa6;
+ const union UdpAddress *int_addr;
+ size_t int_addr_len;
+ enum GNUNET_ATS_Network_Type network_type;
fromlen = sizeof(addr);
memset (&addr, 0, sizeof(addr));
size = GNUNET_NETWORK_socket_recvfrom (rsock, buf, sizeof(buf),
(struct sockaddr *) &addr, &fromlen);
+ sa = (const struct sockaddr *) &addr;
#if MINGW
/* On SOCK_DGRAM UDP sockets recvfrom might fail with a
* WSAECONNRESET error to indicate that previous sendto() (yes, sendto!)
LOG (GNUNET_ERROR_TYPE_WARNING,
"UDP got %u bytes from %s, which is not enough for a GNUnet message header\n",
(unsigned int ) size,
- GNUNET_a2s ((const struct sockaddr *) &addr, fromlen));
+ GNUNET_a2s (sa, fromlen));
/* _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 %u\n",
(unsigned int) size,
- GNUNET_a2s ((const struct sockaddr *) &addr, fromlen),
+ GNUNET_a2s (sa,
+ fromlen),
ntohs (msg->type));
-
if (size != ntohs (msg->size))
{
LOG (GNUNET_ERROR_TYPE_WARNING,
"UDP malformed message header from %s\n",
- (unsigned int ) size,
- GNUNET_a2s ((const struct sockaddr *) &addr, fromlen));
- GNUNET_break_op(0);
+ (unsigned int) size,
+ GNUNET_a2s (sa,
+ fromlen));
+ GNUNET_break_op (0);
return;
}
GNUNET_STATISTICS_update (plugin->env->stats,
"# UDP, total, bytes, received",
size,
GNUNET_NO);
+ network_type = plugin->env->get_address_type (plugin->env->cls,
+ sa,
+ fromlen);
+ switch (sa->sa_family)
+ {
+ case AF_INET:
+ sa4 = (const struct sockaddr_in *) &addr;
+ v4.options = 0;
+ v4.ipv4_addr = sa4->sin_addr.s_addr;
+ v4.u4_port = sa4->sin_port;
+ int_addr = (union UdpAddress *) &v4;
+ int_addr_len = sizeof (v4);
+ break;
+ case AF_INET6:
+ sa6 = (const struct sockaddr_in6 *) &addr;
+ v6.options = 0;
+ v6.ipv6_addr = sa6->sin6_addr;
+ v6.u6_port = sa6->sin6_port;
+ int_addr = (union UdpAddress *) &v6;
+ int_addr_len = sizeof (v6);
+ break;
+ default:
+ GNUNET_break (0);
+ return;
+ }
switch (ntohs (msg->type))
{
case GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON:
if (GNUNET_YES == plugin->enable_broadcasting_receiving)
- udp_broadcast_receive (plugin, buf, size, (const struct sockaddr *) &addr,
- fromlen);
+ udp_broadcast_receive (plugin,
+ buf,
+ size,
+ int_addr,
+ int_addr_len,
+ network_type);
return;
case GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_MESSAGE:
- read_process_msg (plugin, msg, (const struct sockaddr *) &addr, fromlen);
+ if (ntohs (msg->size) < sizeof(struct UDPMessage))
+ {
+ GNUNET_break_op(0);
+ return;
+ }
+ process_udp_message (plugin,
+ (const struct UDPMessage *) msg,
+ int_addr,
+ int_addr_len,
+ network_type);
return;
case GNUNET_MESSAGE_TYPE_TRANSPORT_UDP_ACK:
- read_process_ack (plugin, msg, (const struct sockaddr *) &addr, fromlen);
+ read_process_ack (plugin,
+ msg,
+ int_addr,
+ int_addr_len);
return;
case GNUNET_MESSAGE_TYPE_FRAGMENT:
- read_process_fragment (plugin, msg, (const struct sockaddr *) &addr,
- fromlen);
+ read_process_fragment (plugin,
+ msg,
+ int_addr,
+ int_addr_len,
+ network_type);
return;
default:
GNUNET_break_op(0);
/**
- * FIXME.
+ * Removes messages from the transmission queue that have
+ * timed out, and then selects a message that should be
+ * transmitted next.
+ *
+ * @param plugin the UDP plugin
+ * @param sock which socket should we process the queue for (v4 or v6)
+ * @return message selected for transmission, or NULL for none
*/
static struct UDP_MessageWrapper *
-remove_timeout_messages_and_select (struct UDP_MessageWrapper *head,
+remove_timeout_messages_and_select (struct Plugin *plugin,
struct GNUNET_NETWORK_Handle *sock)
{
struct UDP_MessageWrapper *udpw = NULL;
struct GNUNET_TIME_Relative remaining;
struct Session *session;
- struct Plugin *plugin;
int removed;
removed = GNUNET_NO;
- udpw = head;
+ udpw = (sock == plugin->sockv4)
+ ? plugin->ipv4_queue_head
+ : plugin->ipv6_queue_head;
while (NULL != udpw)
{
session = udpw->session;
- plugin = session->plugin;
/* Find messages with timeout */
remaining = GNUNET_TIME_absolute_get_remaining (udpw->timeout);
if (GNUNET_TIME_UNIT_ZERO.rel_value_us == remaining.rel_value_us)
"# UDP, total, messages, sent, timeout",
1,
GNUNET_NO);
- call_continuation (udpw, GNUNET_SYSERR);
+ 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_NO);
/* Remove fragmented message due to timeout */
- fragmented_message_done (udpw->frag_ctx, GNUNET_SYSERR);
+ fragmented_message_done (udpw->frag_ctx,
+ GNUNET_SYSERR);
break;
case UMT_MSG_ACK:
GNUNET_STATISTICS_update (plugin->env->stats,
"ACK Message for peer `%s' with size %u timed out\n",
GNUNET_i2s (&udpw->session->target),
udpw->payload_size);
- call_continuation (udpw, GNUNET_SYSERR);
+ call_continuation (udpw,
+ GNUNET_SYSERR);
removed = GNUNET_YES;
- dequeue (plugin, udpw);
- GNUNET_free(udpw);
+ dequeue (plugin,
+ udpw);
+ GNUNET_free (udpw);
break;
default:
break;
/* Message is delayed, try next */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"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));
+ GNUNET_i2s (&udpw->session->target),
+ udpw->payload_size,
+ GNUNET_STRINGS_relative_time_to_string (remaining,
+ GNUNET_YES));
udpw = udpw->next;
}
}
/**
- * FIXME.
+ * It is time to try to transmit a UDP message. Select one
+ * and send.
+ *
+ * @param plugin the plugin
+ * @param sock which socket (v4/v6) to send on
+ * @return number of bytes transmitted, #GNUNET_SYSERR on failure
*/
static size_t
udp_select_send (struct Plugin *plugin,
struct UDP_MessageWrapper *udpw;
/* Find message to send */
- udpw = remove_timeout_messages_and_select ((sock == plugin->sockv4)
- ? plugin->ipv4_queue_head
- : plugin->ipv6_queue_head,
+ udpw = remove_timeout_messages_and_select (plugin,
sock);
if (NULL == udpw)
return 0; /* No message to send */
a4.sin_len = sizeof (a4);
#endif
a4.sin_port = u4->u4_port;
- memcpy (&a4.sin_addr, &u4->ipv4_addr, sizeof(struct in_addr));
+ memcpy (&a4.sin_addr,
+ &u4->ipv4_addr,
+ sizeof(struct in_addr));
a = (struct sockaddr *) &a4;
slen = sizeof (a4);
}
}
else
{
- call_continuation (udpw, GNUNET_OK);
- dequeue (plugin, udpw);
+ call_continuation (udpw,
+ GNUNET_OK);
+ dequeue (plugin,
+ udpw);
notify_session_monitor (plugin,
udpw->session,
GNUNET_TRANSPORT_SS_UPDATE);
GNUNET_free (udpw);
return GNUNET_SYSERR;
}
-
sent = GNUNET_NETWORK_socket_sendto (sock,
udpw->msg_buf,
udpw->msg_size,
if (GNUNET_SYSERR == sent)
{
/* Failure */
- analyze_send_error (plugin, a, slen, errno);
- call_continuation (udpw, GNUNET_SYSERR);
+ analyze_send_error (plugin,
+ a,
+ slen,
+ errno);
+ call_continuation (udpw,
+ GNUNET_SYSERR);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes, sent, failure", sent, GNUNET_NO);
+ "# UDP, total, bytes, sent, failure",
+ sent,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, messages, sent, failure", 1, GNUNET_NO);
+ "# UDP, total, messages, sent, failure",
+ 1,
+ GNUNET_NO);
}
else
{
/* Success */
- LOG(GNUNET_ERROR_TYPE_DEBUG,
- "UDP transmitted %u-byte message to `%s' `%s' (%d: %s)\n",
- (unsigned int ) (udpw->msg_size), GNUNET_i2s (&udpw->session->target),
- GNUNET_a2s (a, slen), (int ) sent,
- (sent < 0) ? STRERROR (errno) : "ok");
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "UDP transmitted %u-byte message to `%s' `%s' (%d: %s)\n",
+ (unsigned int) (udpw->msg_size),
+ GNUNET_i2s (&udpw->session->target),
+ GNUNET_a2s (a, slen),
+ (int ) sent,
+ (sent < 0) ? STRERROR (errno) : "ok");
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, bytes, sent, success", sent, GNUNET_NO);
+ "# UDP, total, bytes, sent, success",
+ sent,
+ GNUNET_NO);
GNUNET_STATISTICS_update (plugin->env->stats,
- "# UDP, total, messages, sent, success", 1, GNUNET_NO);
+ "# 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);
notify_session_monitor (plugin,
udpw->session,
GNUNET_TRANSPORT_SS_UPDATE);
- GNUNET_free(udpw);
+ GNUNET_free (udpw);
return sent;
}
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);
+ 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);
"Binding to IPv6 `%s'\n",
GNUNET_a2s (server_addr, addrlen));
/* binding */
- if (GNUNET_OK
- == GNUNET_NETWORK_socket_bind (plugin->sockv6, server_addr,
- addrlen))
+ if (GNUNET_OK ==
+ GNUNET_NETWORK_socket_bind (plugin->sockv6,
+ server_addr,
+ addrlen))
break;
eno = errno;
if (0 != plugin->port)
{
- tries = 10; /* fail */
+ tries = 10; /* fail immediately */
break; /* bind failed on specific port */
}
/* autodetect */
- server_addrv6.sin6_port = htons (
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537)
- + 32000);
+ server_addrv6.sin6_port
+ = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537)
+ + 32000);
tries++;
}
if (tries >= 10)
plugin->enable_ipv6 = GNUNET_NO;
plugin->sockv6 = NULL;
}
-
- if (plugin->sockv6 != NULL )
+ else
+ {
+ plugin->port = ntohs (server_addrv6.sin6_port);
+ }
+ if (NULL != plugin->sockv6)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"IPv6 socket created on port %s\n",
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
"socket");
- LOG(GNUNET_ERROR_TYPE_WARNING,
- "Disabling IPv4 since it is not supported on this system!\n");
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ "Disabling IPv4 since it is not supported on this system!\n");
plugin->enable_ipv4 = GNUNET_NO;
}
else
if (0 == plugin->port)
/* autodetect */
- server_addrv4.sin_port = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG,
- 33537)
- + 32000);
+ server_addrv4.sin_port
+ = htons (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG,
+ 33537)
+ + 32000);
else
server_addrv4.sin_port = htons (plugin->port);
GNUNET_a2s (server_addr, addrlen));
/* binding */
- if (GNUNET_OK
- == GNUNET_NETWORK_socket_bind (plugin->sockv4, server_addr, addrlen))
+ if (GNUNET_OK ==
+ GNUNET_NETWORK_socket_bind (plugin->sockv4,
+ server_addr,
+ addrlen))
break;
eno = errno;
if (0 != plugin->port)
}
/* autodetect */
- server_addrv4.sin_port = htons (
- GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG, 33537)
- + 32000);
+ 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;
}
+ else
+ {
+ plugin->port = ntohs (server_addrv4.sin_port);
+ }
if (NULL != plugin->sockv4)
{
- LOG(GNUNET_ERROR_TYPE_DEBUG, "IPv4 socket created on port %s\n",
- GNUNET_a2s (server_addr, addrlen));
+ 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++;
if (0 == sockets_created)
{
- LOG(GNUNET_ERROR_TYPE_WARNING, _("Failed to open UDP sockets\n"));
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Failed to open UDP sockets\n"));
return 0; /* No sockets created, return */
}
/* 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",
+ GNUNET_CONFIGURATION_get_value_number (env->cfg,
+ "transport-udp",
"PORT", &port))
port = 2086;
if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-udp",
+ GNUNET_CONFIGURATION_get_value_number (env->cfg,
+ "transport-udp",
"ADVERTISED_PORT", &aport))
aport = port;
if (port > 65535)
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, NULL, NULL,
- GNUNET_BANDWIDTH_value_init ((uint32_t) udp_max_bps), 30);
+ p->mst = GNUNET_SERVER_mst_create (&process_inbound_tokenized_messages,
+ p);
+ GNUNET_BANDWIDTH_tracker_init (&p->tracker,
+ NULL,
+ NULL,
+ GNUNET_BANDWIDTH_value_init ((uint32_t) udp_max_bps),
+ 30);
LOG(GNUNET_ERROR_TYPE_DEBUG,
"Setting up sockets\n");
res = setup_sockets (p,
projects / oweals / gnunet.git / blobdiff