-void
+int
broadcast_ipv6_mst_cb (void *cls, void *client,
const struct GNUNET_MessageHeader *message)
{
if (GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON !=
ntohs (msg->header.type))
- return;
-#if DEBUG_UDP_BROADCASTING
+ return GNUNET_OK;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received beacon with %u bytes from peer `%s' via address `%s'\n",
ntohs (msg->header.size), GNUNET_i2s (&msg->sender),
udp_address_to_string (NULL, &mc->addr, sizeof (mc->addr)));
-#endif
struct GNUNET_ATS_Information atsi[2];
/* setup ATS */
("# IPv6 multicast HELLO beacons received via udp"),
1, GNUNET_NO);
GNUNET_free (mc);
+ return GNUNET_OK;
}
-void
+int
broadcast_ipv4_mst_cb (void *cls, void *client,
const struct GNUNET_MessageHeader *message)
{
if (GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON !=
ntohs (msg->header.type))
- return;
-#if DEBUG_UDP_BROADCASTING
+ return GNUNET_OK;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received beacon with %u bytes from peer `%s' via address `%s'\n",
ntohs (msg->header.size), GNUNET_i2s (&msg->sender),
udp_address_to_string (NULL, &mc->addr, sizeof (mc->addr)));
-#endif
struct GNUNET_ATS_Information atsi[2];
("# IPv4 broadcast HELLO beacons received via udp"),
1, GNUNET_NO);
GNUNET_free (mc);
+ return GNUNET_OK;
}
void
{
struct GNUNET_ATS_Information ats;
- if (addrlen == sizeof (struct sockaddr_in))
+ if ((GNUNET_YES == plugin->broadcast_ipv4) && (addrlen == sizeof (struct sockaddr_in)))
{
-#if DEBUG_UDP_BROADCASTING
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received IPv4 HELLO beacon broadcast with %i bytes from address %s\n",
size, GNUNET_a2s ((const struct sockaddr *) addr, addrlen));
-#endif
struct Mstv4Context *mc;
mc = GNUNET_malloc (sizeof (struct Mstv4Context));
mc->addr.u4_port = av4->sin_port;
ats = plugin->env->get_address_type (plugin->env->cls, (const struct sockaddr *) addr, addrlen);
mc->ats_address_network_type = ats.value;
+
+ GNUNET_assert (NULL != plugin->broadcast_ipv4_mst);
if (GNUNET_OK !=
GNUNET_SERVER_mst_receive (plugin->broadcast_ipv4_mst, mc, buf, size,
GNUNET_NO, GNUNET_NO))
GNUNET_free (mc);
}
- else if (addrlen == sizeof (struct sockaddr_in6))
+ else if ((GNUNET_YES == plugin->broadcast_ipv4) && (addrlen == sizeof (struct sockaddr_in6)))
{
-#if DEBUG_UDP_BROADCASTING
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Received IPv6 HELLO beacon broadcast with %i bytes from address %s\n",
size, GNUNET_a2s ((const struct sockaddr *) &addr, addrlen));
-#endif
struct Mstv6Context *mc;
mc = GNUNET_malloc (sizeof (struct Mstv6Context));
mc->addr.u6_port = av6->sin6_port;
ats = plugin->env->get_address_type (plugin->env->cls, (const struct sockaddr *) addr, addrlen);
mc->ats_address_network_type = ats.value;
-
+ GNUNET_assert (NULL != plugin->broadcast_ipv4_mst);
if (GNUNET_OK !=
GNUNET_SERVER_mst_receive (plugin->broadcast_ipv6_mst, mc, buf, size,
GNUNET_NO, GNUNET_NO))
}
}
-static void
-udp_ipv4_broadcast_send (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+static unsigned int
+prepare_beacon (struct Plugin *plugin, struct UDP_Beacon_Message *msg)
{
- struct Plugin *plugin = cls;
- int sent;
- uint16_t msg_size;
uint16_t hello_size;
- char buf[65536];
+ uint16_t msg_size;
const struct GNUNET_MessageHeader *hello;
- struct UDP_Beacon_Message *msg;
- struct BroadcastAddress *baddr;
-
- plugin->send_ipv4_broadcast_task = GNUNET_SCHEDULER_NO_TASK;
-
hello = plugin->env->get_our_hello ();
+ if (NULL == hello)
+ return 0;
hello_size = GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) hello);
msg_size = hello_size + sizeof (struct UDP_Beacon_Message);
if (hello_size < (sizeof (struct GNUNET_MessageHeader)) ||
(msg_size > (UDP_MTU)))
- return;
+ return 0;
- msg = (struct UDP_Beacon_Message *) buf;
msg->sender = *(plugin->env->my_identity);
- msg->header.size = ntohs (msg_size);
- msg->header.type = ntohs (GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON);
+ msg->header.size = htons (msg_size);
+ msg->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON);
memcpy (&msg[1], hello, hello_size);
- sent = 0;
+ return msg_size;
+}
+
+static void
+udp_ipv4_broadcast_send (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct Plugin *plugin = cls;
+ int sent;
+ uint16_t msg_size;
+ char buf[65536] GNUNET_ALIGN;
+ struct BroadcastAddress *baddr;
+ plugin->send_ipv4_broadcast_task = GNUNET_SCHEDULER_NO_TASK;
+
+ msg_size = prepare_beacon(plugin, (struct UDP_Beacon_Message *) &buf);
+ sent = 0;
baddr = plugin->ipv4_broadcast_head;
/* just IPv4 */
- while ((baddr != NULL) && (baddr->addrlen == sizeof (struct sockaddr_in)))
+ while ((msg_size > 0) && (baddr != NULL) && (baddr->addrlen == sizeof (struct sockaddr_in)))
{
struct sockaddr_in *addr = (struct sockaddr_in *) baddr->addr;
addr->sin_port = htons (plugin->port);
- sent =
- GNUNET_NETWORK_socket_sendto (plugin->sockv4, msg, msg_size,
+ sent = GNUNET_NETWORK_socket_sendto (plugin->sockv4, &buf, msg_size,
(const struct sockaddr *) addr,
baddr->addrlen);
if (sent == GNUNET_SYSERR)
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ {
+ if ((ENETUNREACH == errno) || (ENETDOWN == errno))
+ {
+ /* "Network unreachable" or "Network down"
+ *
+ * This indicates that we just do not have network connectivity
+ */
+ GNUNET_log (GNUNET_ERROR_TYPE_BULK | GNUNET_ERROR_TYPE_WARNING,
+ "Network connectivity is down, cannot send beacon!\n");
+ }
+ else
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ }
else
{
-#if DEBUG_UDP_BROADCASTING
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Sent HELLO beacon broadcast with %i bytes to address %s\n", sent,
+ "Sent HELLO beacon broadcast with %i bytes to address %s\n", sent,
GNUNET_a2s (baddr->addr, baddr->addrlen));
-#endif
}
baddr = baddr->next;
}
struct Plugin *plugin = cls;
int sent;
uint16_t msg_size;
- uint16_t hello_size;
- char buf[65536];
-
- const struct GNUNET_MessageHeader *hello;
- struct UDP_Beacon_Message *msg;
+ char buf[65536] GNUNET_ALIGN;
plugin->send_ipv6_broadcast_task = GNUNET_SCHEDULER_NO_TASK;
- hello = plugin->env->get_our_hello ();
- hello_size = GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) hello);
- msg_size = hello_size + sizeof (struct UDP_Beacon_Message);
-
- if (hello_size < (sizeof (struct GNUNET_MessageHeader)) ||
- (msg_size > (UDP_MTU)))
- return;
-
- msg = (struct UDP_Beacon_Message *) buf;
- msg->sender = *(plugin->env->my_identity);
- msg->header.size = ntohs (msg_size);
- msg->header.type = ntohs (GNUNET_MESSAGE_TYPE_TRANSPORT_BROADCAST_BEACON);
- memcpy (&msg[1], hello, hello_size);
+ msg_size = prepare_beacon(plugin, (struct UDP_Beacon_Message *) &buf);
sent = 0;
-
- sent =
- GNUNET_NETWORK_socket_sendto (plugin->sockv6, msg, msg_size,
+ sent = GNUNET_NETWORK_socket_sendto (plugin->sockv6, &buf, msg_size,
(const struct sockaddr *)
&plugin->ipv6_multicast_address,
sizeof (struct sockaddr_in6));
if (sent == GNUNET_SYSERR)
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ {
+ if ((ENETUNREACH == errno) || (ENETDOWN == errno))
+ {
+ /* "Network unreachable" or "Network down"
+ *
+ * This indicates that this system is IPv6 enabled, but does not
+ * have a valid global IPv6 address assigned
+ */
+ GNUNET_log (GNUNET_ERROR_TYPE_BULK | GNUNET_ERROR_TYPE_WARNING,
+ "Network connectivity is down, cannot send beacon!\n");
+ }
+ else
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "sendto");
+ }
else
{
-#if DEBUG_UDP_BROADCASTING
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Sending IPv6 HELLO beacon broadcast with %i bytes to address %s\n",
sent,
GNUNET_a2s ((const struct sockaddr *) &plugin->ipv6_multicast_address,
sizeof (struct sockaddr_in6)));
-#endif
}
-
-
plugin->send_ipv6_broadcast_task =
GNUNET_SCHEDULER_add_delayed (plugin->broadcast_interval,
&udp_ipv6_broadcast_send, plugin);
if (addr != NULL)
{
-#if DEBUG_UDP_BROADCASTING
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "address %s for interface %s %p\n ",
GNUNET_a2s (addr, addrlen), name, addr);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
GNUNET_a2s (broadcast_addr, addrlen), name, broadcast_addr);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "netmask %s for interface %s %p\n ",
GNUNET_a2s (netmask, addrlen), name, netmask);
-#endif
/* Collecting broadcast addresses */
if (broadcast_addr != NULL)
}
else
{
-#if DEBUG_UDP
LOG (GNUNET_ERROR_TYPE_DEBUG, "IPv6 broadcasting running\n");
-#endif
plugin->send_ipv6_broadcast_task =
GNUNET_SCHEDULER_add_now (&udp_ipv6_broadcast_send, plugin);
plugin->broadcast_ipv6 = GNUNET_YES;
}
else
{
-#if DEBUG_UDP
LOG (GNUNET_ERROR_TYPE_DEBUG, "IPv6 Broadcasting stopped\n");
-#endif
}
if (plugin->send_ipv6_broadcast_task != GNUNET_SCHEDULER_NO_TASK)
projects / oweals / gnunet.git / blobdiff