#define LOG(kind,...) GNUNET_log_from (kind, "transport-udp", __VA_ARGS__)
+#define PLUGIN_NAME "udp"
/**
* Number of messages we can defragment in parallel. We only really
*/
#define UDP_MAX_SENDER_ADDRESSES_WITH_DEFRAG 128
+/**
+ * Running pretty printers: head
+ */
+static struct PrettyPrinterContext *ppc_dll_head;
+
+/**
+ * Running pretty printers: tail
+ */
+static struct PrettyPrinterContext *ppc_dll_tail;
+
/**
* Closure for 'append_port'.
*/
struct PrettyPrinterContext
{
+ /**
+ * DLL
+ */
+ struct PrettyPrinterContext *next;
+
+ /**
+ * DLL
+ */
+ struct PrettyPrinterContext *prev;
+
+ /**
+ * Timeout task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
+ /**
+ * Resolver handle
+ */
+ struct GNUNET_RESOLVER_RequestHandle *resolver_handle;
+
/**
* Function to call with the result.
*/
* Port to add after the IP address.
*/
uint16_t port;
+
+ /**
+ * IPv6 address
+ */
+
+ int ipv6;
+
+ /**
+ * Options
+ */
+ uint32_t options;
};
unsigned int rc;
int in_destroy;
+
+ int inbound;
};
};
+/**
+ * Address options
+ */
+static uint32_t myoptions;
+
+
/**
* Encapsulation of all of the state of the plugin.
*/
const struct IPv6UdpAddress *t6;
int af;
uint16_t port;
+ uint32_t options;
+ options = 0;
if (addrlen == sizeof (struct IPv6UdpAddress))
{
t6 = addr;
af = AF_INET6;
+ options = ntohl (t6->options);
port = ntohs (t6->u6_port);
memcpy (&a6, &t6->ipv6_addr, sizeof (a6));
sb = &a6;
{
t4 = addr;
af = AF_INET;
+ options = ntohl (t4->options);
port = ntohs (t4->u4_port);
memcpy (&a4, &t4->ipv4_addr, sizeof (a4));
sb = &a4;
}
+ else if (addrlen == 0)
+ {
+ GNUNET_snprintf (rbuf, sizeof (rbuf), "%s", TRANSPORT_SESSION_INBOUND_STRING);
+ return rbuf;
+ }
else
{
- GNUNET_break_op (0);
return NULL;
}
inet_ntop (af, sb, buf, INET6_ADDRSTRLEN);
- GNUNET_snprintf (rbuf, sizeof (rbuf), (af == AF_INET6) ? "[%s]:%u" : "%s:%u",
- buf, port);
+
+ GNUNET_snprintf (rbuf, sizeof (rbuf), (af == AF_INET6) ? "%s.%u.[%s]:%u" : "%s.%u.%s:%u",
+ PLUGIN_NAME, options, buf, port);
return rbuf;
}
void **buf, size_t *added)
{
struct sockaddr_storage socket_address;
-
- if ((NULL == addr) || (0 == addrlen))
+ char *address;
+ char *plugin;
+ char *optionstr;
+ uint32_t options;
+
+ /* Format tcp.options.address:port */
+ address = NULL;
+ plugin = NULL;
+ optionstr = NULL;
+ options = 0;
+ if ((NULL == addr) || (addrlen == 0))
{
GNUNET_break (0);
return GNUNET_SYSERR;
}
-
if ('\0' != addr[addrlen - 1])
{
+ GNUNET_break (0);
return GNUNET_SYSERR;
}
-
if (strlen (addr) != addrlen - 1)
{
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+ plugin = GNUNET_strdup (addr);
+ optionstr = strchr (plugin, '.');
+ if (NULL == optionstr)
+ {
+ GNUNET_break (0);
+ GNUNET_free (plugin);
return GNUNET_SYSERR;
}
+ optionstr[0] = '\0';
+ optionstr ++;
+ options = atol (optionstr);
+ address = strchr (optionstr, '.');
+ if (NULL == address)
+ {
+ GNUNET_break (0);
+ GNUNET_free (plugin);
+ return GNUNET_SYSERR;
+ }
+ address[0] = '\0';
+ address ++;
- if (GNUNET_OK != GNUNET_STRINGS_to_address_ip (addr, strlen (addr),
- &socket_address))
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_to_address_ip (address, strlen (address),
+ &socket_address))
{
+ GNUNET_break (0);
+ GNUNET_free (plugin);
return GNUNET_SYSERR;
}
+ GNUNET_free (plugin);
+
switch (socket_address.ss_family)
{
case AF_INET:
struct IPv4UdpAddress *u4;
struct sockaddr_in *in4 = (struct sockaddr_in *) &socket_address;
u4 = GNUNET_malloc (sizeof (struct IPv4UdpAddress));
+ u4->options = htonl (options);
u4->ipv4_addr = in4->sin_addr.s_addr;
u4->u4_port = in4->sin_port;
*buf = u4;
struct IPv6UdpAddress *u6;
struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) &socket_address;
u6 = GNUNET_malloc (sizeof (struct IPv6UdpAddress));
+ u6->options = htonl (options);
u6->ipv6_addr = in6->sin6_addr;
u6->u6_port = in6->sin6_port;
*buf = u6;
}
+void
+ppc_cancel_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PrettyPrinterContext *ppc = cls;
+ /* GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "PPC %p was not removed!\n", ppc); */
+ ppc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ if (NULL != ppc->resolver_handle)
+ {
+ GNUNET_RESOLVER_request_cancel (ppc->resolver_handle);
+ ppc->resolver_handle = NULL;
+ }
+
+ GNUNET_CONTAINER_DLL_remove (ppc_dll_head, ppc_dll_tail, ppc);
+ GNUNET_free (ppc);
+}
+
+
/**
* Append our port and forward the result.
*
append_port (void *cls, const char *hostname)
{
struct PrettyPrinterContext *ppc = cls;
+ struct PrettyPrinterContext *cur;
char *ret;
-
+ /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "PPC callback: %p `%s'\n",ppc, hostname); */
if (hostname == NULL)
{
ppc->asc (ppc->asc_cls, NULL);
+ GNUNET_CONTAINER_DLL_remove (ppc_dll_head, ppc_dll_tail, ppc);
+ GNUNET_SCHEDULER_cancel (ppc->timeout_task);
+ ppc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
+ ppc->resolver_handle = NULL;
+ /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "PPC %p was removed!\n", ppc); */
GNUNET_free (ppc);
return;
}
- GNUNET_asprintf (&ret, "%s:%d", hostname, ppc->port);
+ for (cur = ppc_dll_head; (NULL != cur); cur = cur->next)
+ {
+ if (cur == ppc)
+ break;
+ }
+ if (NULL == cur)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Invalid callback for PPC %p \n", ppc);
+ return;
+ }
+
+ if (GNUNET_YES == ppc->ipv6)
+ GNUNET_asprintf (&ret, "%s.%u.[%s]:%d", PLUGIN_NAME, ppc->options, hostname, ppc->port);
+ else
+ GNUNET_asprintf (&ret, "%s.%u.%s:%d", PLUGIN_NAME, ppc->options, hostname, ppc->port);
ppc->asc (ppc->asc_cls, ret);
GNUNET_free (ret);
}
-
/**
* Convert the transports address to a nice, human-readable
* format.
const struct IPv4UdpAddress *u4;
const struct IPv6UdpAddress *u6;
uint16_t port;
+ uint32_t options;
+ options = 0;
if (addrlen == sizeof (struct IPv6UdpAddress))
{
u6 = addr;
a6.sin6_port = u6->u6_port;
memcpy (&a6.sin6_addr, &u6->ipv6_addr, sizeof (struct in6_addr));
port = ntohs (u6->u6_port);
+ options = ntohl (u6->options);
sb = &a6;
sbs = sizeof (a6);
}
a4.sin_port = u4->u4_port;
a4.sin_addr.s_addr = u4->ipv4_addr;
port = ntohs (u4->u4_port);
+ options = ntohl (u4->options);
sb = &a4;
sbs = sizeof (a4);
}
else if (0 == addrlen)
{
- asc (asc_cls, "<inbound connection>");
+ asc (asc_cls, TRANSPORT_SESSION_INBOUND_STRING);
asc (asc_cls, NULL);
return;
}
ppc->asc = asc;
ppc->asc_cls = asc_cls;
ppc->port = port;
- GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric, timeout, &append_port, ppc);
+ ppc->options = options;
+ if (addrlen == sizeof (struct IPv6UdpAddress))
+ ppc->ipv6 = GNUNET_YES;
+ else
+ ppc->ipv6 = GNUNET_NO;
+ ppc->timeout_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(timeout, 2),
+ &ppc_cancel_task, ppc);
+ GNUNET_CONTAINER_DLL_insert (ppc_dll_head, ppc_dll_tail, ppc);
+ /* GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "PPC %p was created!\n", ppc); */
+ ppc->resolver_handle = GNUNET_RESOLVER_hostname_get (sb, sbs, !numeric, timeout, &append_port, ppc);
+
}
if ((addrlen != sizeof (struct IPv4UdpAddress)) &&
(addrlen != sizeof (struct IPv6UdpAddress)))
{
- GNUNET_break_op (0);
return GNUNET_SYSERR;
}
if (addrlen == sizeof (struct IPv4UdpAddress))
case sizeof (struct IPv4UdpAddress):
if (NULL == plugin->sockv4)
{
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Could not create session for peer `%s' address `%s': IPv4 is not enabled\n",
+ GNUNET_i2s(target),
+ udp_address_to_string(NULL, addr, addrlen));
return NULL;
}
t4 = addr;
case sizeof (struct IPv6UdpAddress):
if (NULL == plugin->sockv6)
{
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ "Could not create session for peer `%s' address `%s': IPv6 is not enabled\n",
+ GNUNET_i2s(target),
+ udp_address_to_string(NULL, addr, addrlen));
return NULL;
}
t6 = addr;
break;
default:
/* Must have a valid address to send to */
- GNUNET_break_op (0);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop
+ ("# requests to create session with invalid address"),
+ 1, GNUNET_NO);
return NULL;
}
s->addrlen = len;
s->last_expected_msg_delay = GNUNET_TIME_UNIT_MILLISECONDS;
s->flow_delay_from_other_peer = GNUNET_TIME_UNIT_ZERO_ABS;
s->flow_delay_for_other_peer = GNUNET_TIME_UNIT_ZERO;
+ s->inbound = GNUNET_NO;
start_session_timeout (s);
return s;
}
}
+/**
+ * Function obtain the network type for a session
+ *
+ * @param cls closure ('struct Plugin*')
+ * @param session the session
+ * @return the network type in HBO or GNUNET_SYSERR
+ */
+static enum GNUNET_ATS_Network_Type
+udp_get_network (void *cls,
+ struct Session *session)
+{
+ return ntohl (session->ats.value);
+}
+
+
/**
* Creates a new outbound session the transport service will use to send data to the
* peer
* @return the session or NULL of max connections exceeded
*/
static struct Session *
-udp_plugin_get_session (void *cls,
- const struct GNUNET_HELLO_Address *address)
+udp_plugin_lookup_session (void *cls,
+ const struct GNUNET_HELLO_Address *address)
{
- struct Session * s = NULL;
struct Plugin * plugin = cls;
struct IPv6UdpAddress * udp_a6;
struct IPv4UdpAddress * udp_a4;
((address->address_length != sizeof (struct IPv4UdpAddress)) &&
(address->address_length != sizeof (struct IPv6UdpAddress))))
{
- GNUNET_break (0);
+ LOG (GNUNET_ERROR_TYPE_WARNING,
+ _("Trying to create session for address of unexpected length %u (should be %u or %u)\n"),
+ address->address_length,
+ sizeof (struct IPv4UdpAddress),
+ sizeof (struct IPv6UdpAddress));
return NULL;
}
LOG (GNUNET_ERROR_TYPE_DEBUG, "Found existing session %p\n", cctx.res);
return cctx.res;
}
+ return NULL;
+}
+
+static struct Session *
+udp_plugin_create_session (void *cls,
+ const struct GNUNET_HELLO_Address *address)
+{
+ struct Session * s = NULL;
/* otherwise create new */
s = create_session (plugin,
address->address,
address->address_length,
NULL, NULL);
+ if (NULL == s)
+ return NULL; /* protocol not supported or address invalid */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Creating new session %p for peer `%s' address `%s'\n",
s,
return s;
}
+
+
+/**
+ * Creates a new outbound session the transport service will use to send data to the
+ * peer
+ *
+ * @param cls the plugin
+ * @param address the address
+ * @return the session or NULL of max connections exceeded
+ */
+static struct Session *
+udp_plugin_get_session (void *cls,
+ const struct GNUNET_HELLO_Address *address)
+{
+ struct Session * s = NULL;
+
+ if (NULL == address)
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+ if ((address->address_length != sizeof (struct IPv4UdpAddress)) &&
+ (address->address_length != sizeof (struct IPv6UdpAddress)))
+ return NULL;
+
+ /* otherwise create new */
+ if (NULL != (s = udp_plugin_lookup_session(cls, address)))
+ return s;
+ else
+ return udp_plugin_create_session (cls, address);
+}
+
+
static void
enqueue (struct Plugin *plugin, struct UDP_MessageWrapper * udpw)
{
{
case AF_INET:
GNUNET_assert (addrlen == sizeof (struct sockaddr_in));
+ memset (&u4, 0, sizeof (u4));
+ u4.options = htonl(myoptions);
u4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
u4.u4_port = ((struct sockaddr_in *) addr)->sin_port;
+ if (0 == ((struct sockaddr_in *) addr)->sin_port)
+ return;
arg = &u4;
- args = sizeof (u4);
+ args = sizeof (struct IPv4UdpAddress);
break;
case AF_INET6:
GNUNET_assert (addrlen == sizeof (struct sockaddr_in6));
+ memset (&u4, 0, sizeof (u4));
+ u6.options = htonl(myoptions);
+ if (0 == ((struct sockaddr_in6 *) addr)->sin6_port)
+ return;
memcpy (&u6.ipv6_addr, &((struct sockaddr_in6 *) addr)->sin6_addr,
sizeof (struct in6_addr));
u6.u6_port = ((struct sockaddr_in6 *) addr)->sin6_port;
arg = &u6;
- args = sizeof (u6);
+ args = sizeof (struct IPv6UdpAddress);
break;
default:
GNUNET_break (0);
&si->sender,
hdr,
si->session,
- si->arg,
- si->args);
+ (GNUNET_YES == si->session->inbound) ? NULL : si->arg,
+ (GNUNET_YES == si->session->inbound) ? 0 : si->args);
plugin->env->update_address_metrics (plugin->env->cls,
&si->sender,
- si->arg,
- si->args,
+ (GNUNET_YES == si->session->inbound) ? NULL : si->arg,
+ (GNUNET_YES == si->session->inbound) ? 0 : si->args,
si->session,
&si->session->ats, 1);
{
case AF_INET:
GNUNET_assert (sender_addr_len == sizeof (struct sockaddr_in));
+ memset (&u4, 0, sizeof (u4));
+ u6.options = htonl (0);
u4.ipv4_addr = ((struct sockaddr_in *) sender_addr)->sin_addr.s_addr;
u4.u4_port = ((struct sockaddr_in *) sender_addr)->sin_port;
arg = &u4;
break;
case AF_INET6:
GNUNET_assert (sender_addr_len == sizeof (struct sockaddr_in6));
+ memset (&u6, 0, sizeof (u6));
+ u6.options = htonl (0);
u6.ipv6_addr = ((struct sockaddr_in6 *) sender_addr)->sin6_addr;
u6.u6_port = ((struct sockaddr_in6 *) sender_addr)->sin6_port;
arg = &u6;
GNUNET_a2s (sender_addr, sender_addr_len));
struct GNUNET_HELLO_Address * address = GNUNET_HELLO_address_allocate(&msg->sender, "udp", arg, args);
- s = udp_plugin_get_session(plugin, address);
+ if (NULL == (s = udp_plugin_lookup_session (plugin, address)))
+ {
+ s = udp_plugin_create_session(plugin, address);
+ s->inbound = GNUNET_YES;
+ plugin->env->session_start (NULL, &address->peer, PLUGIN_NAME,
+ (GNUNET_YES == s->inbound) ? NULL : address->address,
+ (GNUNET_YES == s->inbound) ? 0 : address->address_length,
+ s, NULL, 0);
+ }
GNUNET_free (address);
/* iterate over all embedded messages */
{
LOG (GNUNET_ERROR_TYPE_ERROR, _("Invalid IPv6 address: `%s'\n"),
bind6_address);
- GNUNET_free_non_null (bind4_address);
GNUNET_free (bind6_address);
return NULL;
}
}
GNUNET_free_non_null (bind6_address);
+ /* Initialize my flags */
+ myoptions = 0;
+
/* Enable neighbour discovery */
broadcast = GNUNET_CONFIGURATION_get_value_yesno (env->cfg, "transport-udp",
"BROADCAST");
api->check_address = &udp_plugin_check_address;
api->get_session = &udp_plugin_get_session;
api->send = &udp_plugin_send;
+ api->get_network = &udp_get_network;
return api;
}
{
struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
struct Plugin *plugin = api->cls;
+ struct PrettyPrinterContext *cur;
+ struct PrettyPrinterContext *next;
if (NULL == plugin)
{
GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions, &disconnect_and_free_it, plugin);
GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
+ next = ppc_dll_head;
+ for (cur = next; NULL != cur; cur = next)
+ {
+ next = cur->next;
+ GNUNET_CONTAINER_DLL_remove (ppc_dll_head, ppc_dll_tail, cur);
+ GNUNET_RESOLVER_request_cancel (cur->resolver_handle);
+ GNUNET_SCHEDULER_cancel (cur->timeout_task);
+ GNUNET_free (cur);
+ GNUNET_break (0);
+ }
+
plugin->nat = NULL;
GNUNET_free (plugin);
GNUNET_free (api);
projects / oweals / gnunet.git / blobdiff