#define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_http_client_done
#endif
+#define VERBOSE_CURL GNUNET_NO
#include "platform.h"
#include "gnunet_protocols.h"
-#include "gnunet_connection_lib.h"
+#include "gnunet_common.h"
#include "gnunet_server_lib.h"
-#include "gnunet_service_lib.h"
-#include "gnunet_statistics_service.h"
-#include "gnunet_transport_service.h"
#include "gnunet_transport_plugin.h"
+#include "plugin_transport_http_common.h"
+#include <curl/curl.h>
-#define DEBUG_TEMPLATE GNUNET_EXTRA_LOGGING
/**
- * After how long do we expire an address that we
- * learned from another peer if it is not reconfirmed
- * by anyone?
+ * Encapsulation of all of the state of the plugin.
*/
-#define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
+struct HTTP_Client_Plugin;
/**
- * Encapsulation of all of the state of the plugin.
+ * Message to send using http
*/
-struct HTTP_Client_Plugin;
+struct HTTP_Message
+{
+ /**
+ * next pointer for double linked list
+ */
+ struct HTTP_Message *next;
+
+ /**
+ * previous pointer for double linked list
+ */
+ struct HTTP_Message *prev;
+
+ /**
+ * buffer containing data to send
+ */
+ char *buf;
+
+ /**
+ * amount of data already sent
+ */
+ size_t pos;
+
+ /**
+ * buffer length
+ */
+ size_t size;
+
+ /**
+ * Continuation function to call once the transmission buffer
+ * has again space available. NULL if there is no
+ * continuation to call.
+ */
+ GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
+
+ /**
+ * Closure for transmit_cont.
+ */
+ void *transmit_cont_cls;
+};
/**
* To whom are we talking to (set to our identity
* if we are still waiting for the welcome message)
*/
- struct GNUNET_PeerIdentity sender;
+ struct GNUNET_PeerIdentity target;
/**
* Stored in a linked list.
*/
struct Session *next;
+ /**
+ * Stored in a linked list.
+ */
+ struct Session *prev;
+
+ /**
+ * Address
+ */
+ void *addr;
+
+ /**
+ * Address length
+ */
+ size_t addrlen;
+
+ /**
+ * ATS network type in NBO
+ */
+ uint32_t ats_address_network_type;
+
/**
* Pointer to the global plugin struct.
*/
struct HTTP_Client_Plugin *plugin;
/**
- * The client (used to identify this connection)
+ * Is client send handle paused since there are no data to send?
+ * GNUNET_YES/NO
*/
- /* void *client; */
+ int client_put_paused;
/**
- * Continuation function to call once the transmission buffer
- * has again space available. NULL if there is no
- * continuation to call.
+ * Was session given to transport service?
*/
- GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
+ // int session_passed;
/**
- * Closure for transmit_cont.
+ * Client send handle
*/
- void *transmit_cont_cls;
+ void *client_put;
/**
- * At what time did we reset last_received last?
+ * Client receive handle
*/
- struct GNUNET_TIME_Absolute last_quota_update;
+ void *client_get;
/**
- * How many bytes have we received since the "last_quota_update"
- * timestamp?
+ * next pointer for double linked list
*/
- uint64_t last_received;
+ struct HTTP_Message *msg_head;
/**
- * Number of bytes per ms that this peer is allowed
- * to send to us.
+ * previous pointer for double linked list
*/
- uint32_t quota;
+ struct HTTP_Message *msg_tail;
+ /**
+ * Message stream tokenizer for incoming data
+ */
+ struct GNUNET_SERVER_MessageStreamTokenizer *msg_tk;
+
+ /**
+ * Session timeout task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+
+ /**
+ * Task to wake up client receive handle when receiving is allowed again
+ */
+ GNUNET_SCHEDULER_TaskIdentifier recv_wakeup_task;
+
+ /**
+ * Absolute time when to receive data again
+ * Used for receive throttling
+ */
+ struct GNUNET_TIME_Absolute next_receive;
};
+
/**
* Encapsulation of all of the state of the plugin.
*/
struct GNUNET_TRANSPORT_PluginEnvironment *env;
/**
- * List of open sessions.
+ * Linked list head of open sessions.
+ */
+ struct Session *head;
+
+ /**
+ * Linked list tail of open sessions.
+ */
+ struct Session *tail;
+
+ /**
+ * Plugin name
+ */
+ char *name;
+
+ /**
+ * Protocol
+ */
+ char *protocol;
+
+ /**
+ * Maximum number of sockets the plugin can use
+ * Each http inbound /outbound connections are two connections
*/
- struct Session *sessions;
+ unsigned int max_connections;
+ /**
+ * Current number of sockets the plugin can use
+ * Each http inbound /outbound connections are two connections
+ */
+ unsigned int cur_connections;
+
+ /**
+ * Last used unique HTTP connection tag
+ */
+ uint32_t last_tag;
+
+ /**
+ * use IPv6
+ */
+ uint16_t use_ipv6;
+
+ /**
+ * use IPv4
+ */
+ uint16_t use_ipv4;
+
+ /**
+ * cURL Multihandle
+ */
+ CURLM *curl_multi_handle;
+
+ /**
+ * curl perform task
+ */
+ GNUNET_SCHEDULER_TaskIdentifier client_perform_task;
};
+/**
+ * Encapsulation of all of the state of the plugin.
+ */
+struct HTTP_Client_Plugin *p;
+
+
+/**
+ * Start session timeout for a session
+ * @param s the session
+ */
+static void
+client_start_session_timeout (struct Session *s);
+
+
+/**
+ * Increment session timeout due to activity for a session
+ * @param s the session
+ */
+static void
+client_reschedule_session_timeout (struct Session *s);
+
+
+/**
+ * Cancel timeout for a session
+ * @param s the session
+ */
+static void
+client_stop_session_timeout (struct Session *s);
+
+
+/**
+ * Function setting up file descriptors and scheduling task to run
+ *
+ * @param plugin plugin as closure
+ * @param now schedule task in 1ms, regardless of what curl may say
+ * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
+ */
+static int
+client_schedule (struct HTTP_Client_Plugin *plugin, int now);
+
+
+/**
+ * Does a session s exists?
+ *
+ * @param plugin the plugin
+ * @param s desired session
+ * @return GNUNET_YES or GNUNET_NO
+ */
+static int
+client_exist_session (struct HTTP_Client_Plugin *plugin, struct Session *s)
+{
+ struct Session * head;
+
+ GNUNET_assert (NULL != plugin);
+ GNUNET_assert (NULL != s);
+
+ for (head = plugin->head; head != NULL; head = head->next)
+ {
+ if (head == s)
+ return GNUNET_YES;
+ }
+ return GNUNET_NO;
+}
+
+#if VERBOSE_CURL
+/**
+ * Function to log curl debug messages with GNUNET_log
+ *
+ * @param curl handle
+ * @param type curl_infotype
+ * @param data data
+ * @param size size
+ * @param cls closure
+ * @return 0
+ */
+static int
+client_log (CURL * curl, curl_infotype type, char *data, size_t size, void *cls)
+{
+ char *ttype;
+ if ((type == CURLINFO_TEXT) || (type == CURLINFO_HEADER_IN) || (type == CURLINFO_HEADER_OUT))
+ {
+ char text[size + 2];
+
+ switch (type) {
+ case CURLINFO_TEXT:
+ ttype = "TEXT";
+ break;
+ case CURLINFO_HEADER_IN:
+ ttype = "HEADER_IN";
+ break;
+ case CURLINFO_HEADER_OUT:
+ ttype = "HEADER_OUT";
+ break;
+ default:
+ break;
+ }
+
+ memcpy (text, data, size);
+ if (text[size - 1] == '\n')
+ text[size] = '\0';
+ else
+ {
+ text[size] = '\n';
+ text[size + 1] = '\0';
+ }
+#if BUILD_HTTPS
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "transport-https_client",
+ "Connection %p %s: %s", cls, ttype, text);
+#else
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "transport-http_client",
+ "Connection %p %s: %s", cls, ttype, text);
+#endif
+ }
+ return 0;
+}
+#endif
+
+
/**
* Function that can be used by the transport service to transmit
* a message using the plugin. Note that in the case of a
GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
{
struct HTTP_Client_Plugin *plugin = cls;
- int bytes_sent = 0;
+ struct HTTP_Message *msg;
GNUNET_assert (plugin != NULL);
GNUNET_assert (session != NULL);
- /* struct Plugin *plugin = cls; */
- return bytes_sent;
+ /* lookup if session is really existing */
+ if (GNUNET_YES != client_exist_session (plugin, session))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, session->plugin->name,
+ "Session %p/connection %p: Sending message with %u to peer `%s' with \n",
+ session, session->client_put,
+ msgbuf_size, GNUNET_i2s (&session->target));
+
+ /* create new message and schedule */
+ msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
+ msg->next = NULL;
+ msg->size = msgbuf_size;
+ msg->pos = 0;
+ msg->buf = (char *) &msg[1];
+ msg->transmit_cont = cont;
+ msg->transmit_cont_cls = cont_cls;
+ memcpy (msg->buf, msgbuf, msgbuf_size);
+ GNUNET_CONTAINER_DLL_insert_tail (session->msg_head, session->msg_tail, msg);
+
+ if (session->client_put_paused == GNUNET_YES)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, session->plugin->name,
+ "Session %p/connection %p: unpausing connection\n",
+ session, session->client_put);
+ session->client_put_paused = GNUNET_NO;
+ curl_easy_pause (session->client_put, CURLPAUSE_CONT);
+ }
+ client_schedule (session->plugin, GNUNET_YES);
+ client_reschedule_session_timeout (session);
+ return msgbuf_size;
+}
+
+
+/**
+ * Delete session s
+ *
+ * @param s the session to delete
+ */
+static void
+client_delete_session (struct Session *s)
+{
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+ struct HTTP_Message *pos;
+ struct HTTP_Message *next;
+
+ client_stop_session_timeout (s);
+
+ GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
+
+ next = s->msg_head;
+ while (NULL != (pos = next))
+ {
+ next = pos->next;
+ GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, pos);
+ if (pos->transmit_cont != NULL)
+ pos->transmit_cont (pos->transmit_cont_cls, &s->target, GNUNET_SYSERR);
+ GNUNET_free (pos);
+ }
+
+ if (s->msg_tk != NULL)
+ {
+ GNUNET_SERVER_mst_destroy (s->msg_tk);
+ s->msg_tk = NULL;
+ }
+ GNUNET_free (s->addr);
+ GNUNET_free (s);
}
+/**
+ * Disconnect a session
+ *
+ * @param s session
+ * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ */
+static int
+client_disconnect (struct Session *s)
+{
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+ struct HTTP_Message *msg;
+ struct HTTP_Message *t;
+ int res = GNUNET_OK;
+ CURLMcode mret;
+
+ if (GNUNET_YES != client_exist_session (plugin, s))
+ {
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ if (s->client_put != NULL)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: disconnecting PUT connection to peer `%s'\n",
+ s, s->client_put, GNUNET_i2s (&s->target));
+
+ /* remove curl handle from multi handle */
+ mret = curl_multi_remove_handle (plugin->curl_multi_handle, s->client_put);
+ if (mret != CURLM_OK)
+ {
+ /* clean up easy handle, handle is now invalid and free'd */
+ res = GNUNET_SYSERR;
+ GNUNET_break (0);
+ }
+ curl_easy_cleanup (s->client_put);
+ s->client_put = NULL;
+ }
+
+
+ if (s->recv_wakeup_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (s->recv_wakeup_task);
+ s->recv_wakeup_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+
+ if (s->client_get != NULL)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: disconnecting GET connection to peer `%s'\n",
+ s, s->client_get, GNUNET_i2s (&s->target));
+
+ /* remove curl handle from multi handle */
+ mret = curl_multi_remove_handle (plugin->curl_multi_handle, s->client_get);
+ if (mret != CURLM_OK)
+ {
+ /* clean up easy handle, handle is now invalid and free'd */
+ res = GNUNET_SYSERR;
+ GNUNET_break (0);
+ }
+ curl_easy_cleanup (s->client_get);
+ s->client_get = NULL;
+ }
+
+ msg = s->msg_head;
+ while (msg != NULL)
+ {
+ t = msg->next;
+ if (NULL != msg->transmit_cont)
+ msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_SYSERR);
+ GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg);
+ GNUNET_free (msg);
+ msg = t;
+ }
+
+ GNUNET_assert (plugin->cur_connections >= 2);
+ plugin->cur_connections -= 2;
+ GNUNET_STATISTICS_set (plugin->env->stats,
+ "# HTTP client sessions",
+ plugin->cur_connections,
+ GNUNET_NO);
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p: notifying transport about ending session\n",s);
+
+ plugin->env->session_end (plugin->env->cls, &s->target, s);
+ client_delete_session (s);
+
+ /* Re-schedule since handles have changed */
+ if (plugin->client_perform_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
+ plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ client_schedule (plugin, GNUNET_YES);
+
+ return res;
+}
+
+
/**
* Function that can be used to force the plugin to disconnect
* from the given peer and cancel all previous transmissions
static void
http_client_plugin_disconnect (void *cls, const struct GNUNET_PeerIdentity *target)
{
- // struct Plugin *plugin = cls;
- // FIXME
+ struct HTTP_Client_Plugin *plugin = cls;
+ struct Session *next = NULL;
+ struct Session *pos = NULL;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Transport tells me to disconnect `%s'\n",
+ GNUNET_i2s (target));
+
+ next = plugin->head;
+ while (NULL != (pos = next))
+ {
+ next = pos->next;
+ if (0 == memcmp (target, &pos->target, sizeof (struct GNUNET_PeerIdentity)))
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Disconnecting session %p to `%pos'\n",
+ pos, GNUNET_i2s (target));
+ GNUNET_assert (GNUNET_OK == client_disconnect (pos));
+ }
+ }
+
+}
+
+
+static struct Session *
+client_lookup_session (struct HTTP_Client_Plugin *plugin,
+ const struct GNUNET_HELLO_Address *address)
+{
+ struct Session *pos;
+
+ for (pos = plugin->head; NULL != pos; pos = pos->next)
+ if ((0 == memcmp (&address->peer, &pos->target, sizeof (struct GNUNET_PeerIdentity))) &&
+ (address->address_length == pos->addrlen) &&
+ (0 == memcmp (address->address, pos->addr, pos->addrlen)))
+ return pos;
+ return NULL;
}
/**
- * Convert the transports address to a nice, human-readable
- * format.
+ * Callback method used with libcurl
+ * Method is called when libcurl needs to read data during sending
*
- * @param cls closure
- * @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
- * @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?
- * @param asc function to call on each string
- * @param asc_cls closure for asc
+ * @param stream pointer where to write data
+ * @param size size of an individual element
+ * @param nmemb count of elements that can be written to the buffer
+ * @param cls source pointer, passed to the libcurl handle
+ * @return bytes written to stream, returning 0 will terminate connection!
+ */
+static size_t
+client_send_cb (void *stream, size_t size, size_t nmemb, void *cls)
+{
+ struct Session *s = cls;
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+ struct HTTP_Message *msg = s->msg_head;
+ size_t len;
+
+ if (GNUNET_YES != client_exist_session (plugin, s))
+ {
+ GNUNET_break (0);
+ return 0;
+ }
+ if (NULL == msg)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: nothing to send, suspending\n",
+ s, s->client_put);
+ s->client_put_paused = GNUNET_YES;
+ return CURL_READFUNC_PAUSE;
+ }
+ /* data to send */
+ GNUNET_assert (msg->pos < msg->size);
+ /* calculate how much fits in buffer */
+ len = GNUNET_MIN (msg->size - msg->pos,
+ size * nmemb);
+ memcpy (stream, &msg->buf[msg->pos], len);
+ msg->pos += len;
+ if (msg->pos == msg->size)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: sent message with %u bytes sent, removing message from queue\n",
+ s, s->client_put, msg->size, msg->pos);
+ /* Calling transmit continuation */
+ GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg);
+ if (NULL != msg->transmit_cont)
+ msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_OK);
+ GNUNET_free (msg);
+ }
+ client_reschedule_session_timeout (s);
+ return len;
+}
+
+
+/**
+ * Wake up a curl handle which was suspended
+ *
+ * @param cls the session
+ * @param tc task context
*/
static void
-http_client_plugin_address_pretty_printer (void *cls, const char *type,
- const void *addr, size_t addrlen,
- int numeric,
- struct GNUNET_TIME_Relative timeout,
- GNUNET_TRANSPORT_AddressStringCallback
- asc, void *asc_cls)
+client_wake_up (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- asc (asc_cls, NULL);
+ struct Session *s = cls;
+
+ if (GNUNET_YES != client_exist_session(p, s))
+ {
+ GNUNET_break (0);
+ return;
+ }
+ s->recv_wakeup_task = GNUNET_SCHEDULER_NO_TASK;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, s->plugin->name,
+ "Session %p/connection %p: Waking up GET handle\n", s, s->client_get);
+ if (s->client_get != NULL)
+ curl_easy_pause (s->client_get, CURLPAUSE_CONT);
}
+/**
+ * Callback for message stream tokenixer
+ *
+ * @param cls the session
+ * @param client not used
+ * @param message the message received
+ * @return always GNUNET_OK
+ */
+static int
+client_receive_mst_cb (void *cls, void *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct Session *s = cls;
+ struct HTTP_Client_Plugin *plugin;
+ struct GNUNET_TIME_Relative delay;
+ struct GNUNET_ATS_Information atsi[2];
+
+ if (GNUNET_YES != client_exist_session(p, s))
+ {
+ GNUNET_break (0);
+ return GNUNET_OK;
+ }
+ plugin = s->plugin;
+
+
+ atsi[0].type = htonl (GNUNET_ATS_QUALITY_NET_DISTANCE);
+ atsi[0].value = htonl (1);
+ atsi[1].type = htonl (GNUNET_ATS_NETWORK_TYPE);
+ atsi[1].value = s->ats_address_network_type;
+ GNUNET_break (s->ats_address_network_type != ntohl (GNUNET_ATS_NET_UNSPECIFIED));
+
+ delay = s->plugin->env->receive (plugin->env->cls, &s->target, message,
+ (const struct GNUNET_ATS_Information *) &atsi, 2,
+ s, s->addr, s->addrlen);
+ s->next_receive =
+ GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (), delay);
+
+ if (GNUNET_TIME_absolute_get ().abs_value < s->next_receive.abs_value)
+ {
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Client: peer `%s' address `%s' next read delayed for %llu ms\n",
+ GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen),
+ delay);
+ }
+ client_reschedule_session_timeout (s);
+ return GNUNET_OK;
+}
+
+
+
+/**
+ * Callback method used with libcurl
+ * Method is called when libcurl needs to write data during sending
+ *
+ * @param stream pointer where to write data
+ * @param size size of an individual element
+ * @param nmemb count of elements that can be written to the buffer
+ * @param cls destination pointer, passed to the libcurl handle
+ * @return bytes read from stream
+ */
+static size_t
+client_receive (void *stream, size_t size, size_t nmemb, void *cls)
+{
+ struct Session *s = cls;
+ struct GNUNET_TIME_Absolute now;
+ size_t len = size * nmemb;
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Received %u bytes from peer `%s'\n", len,
+ GNUNET_i2s (&s->target));
+ now = GNUNET_TIME_absolute_get ();
+ if (now.abs_value < s->next_receive.abs_value)
+ {
+ struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
+ struct GNUNET_TIME_Relative delta =
+ GNUNET_TIME_absolute_get_difference (now, s->next_receive);
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "No inbound bandwidth for session %p available! Next read was delayed for %llu ms\n",
+ s, delta.rel_value);
+ if (s->recv_wakeup_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (s->recv_wakeup_task);
+ s->recv_wakeup_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ s->recv_wakeup_task =
+ GNUNET_SCHEDULER_add_delayed (delta, &client_wake_up, s);
+ return CURLPAUSE_ALL;
+ }
+ if (NULL == s->msg_tk)
+ s->msg_tk = GNUNET_SERVER_mst_create (&client_receive_mst_cb, s);
+ GNUNET_SERVER_mst_receive (s->msg_tk, s, stream, len, GNUNET_NO, GNUNET_NO);
+ return len;
+
+}
+
+
+/**
+ * Task performing curl operations
+ *
+ * @param cls plugin as closure
+ * @param tc gnunet scheduler task context
+ */
+static void
+client_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Function setting up file descriptors and scheduling task to run
+ *
+ * @param plugin plugin as closure
+ * @param now schedule task in 1ms, regardless of what curl may say
+ * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
+ */
+static int
+client_schedule (struct HTTP_Client_Plugin *plugin, int now)
+{
+ fd_set rs;
+ fd_set ws;
+ fd_set es;
+ int max;
+ struct GNUNET_NETWORK_FDSet *grs;
+ struct GNUNET_NETWORK_FDSet *gws;
+ long to;
+ CURLMcode mret;
+ struct GNUNET_TIME_Relative timeout;
+
+ /* Cancel previous scheduled task */
+ if (plugin->client_perform_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
+ plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ max = -1;
+ FD_ZERO (&rs);
+ FD_ZERO (&ws);
+ FD_ZERO (&es);
+ mret = curl_multi_fdset (plugin->curl_multi_handle, &rs, &ws, &es, &max);
+ if (mret != CURLM_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("%s failed at %s:%d: `%s'\n"),
+ "curl_multi_fdset", __FILE__, __LINE__,
+ curl_multi_strerror (mret));
+ return GNUNET_SYSERR;
+ }
+ mret = curl_multi_timeout (plugin->curl_multi_handle, &to);
+ if (to == -1)
+ timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1);
+ else
+ timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to);
+ if (now == GNUNET_YES)
+ timeout = GNUNET_TIME_UNIT_MILLISECONDS;
+
+ if (mret != CURLM_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("%s failed at %s:%d: `%s'\n"),
+ "curl_multi_timeout", __FILE__, __LINE__,
+ curl_multi_strerror (mret));
+ return GNUNET_SYSERR;
+ }
+
+ grs = GNUNET_NETWORK_fdset_create ();
+ gws = GNUNET_NETWORK_fdset_create ();
+ GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
+
+ plugin->client_perform_task =
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+ timeout, grs, gws,
+ &client_run, plugin);
+ GNUNET_NETWORK_fdset_destroy (gws);
+ GNUNET_NETWORK_fdset_destroy (grs);
+ return GNUNET_OK;
+}
+
+
+/**
+ * Task performing curl operations
+ *
+ * @param cls plugin as closure
+ * @param tc gnunet scheduler task context
+ */
+static void
+client_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct HTTP_Client_Plugin *plugin = cls;
+ int running;
+ CURLMcode mret;
+
+ GNUNET_assert (cls != NULL);
+
+ plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+
+ do
+ {
+ running = 0;
+ mret = curl_multi_perform (plugin->curl_multi_handle, &running);
+
+ CURLMsg *msg;
+ int msgs_left;
+
+ while ((msg = curl_multi_info_read (plugin->curl_multi_handle, &msgs_left)))
+ {
+ CURL *easy_h = msg->easy_handle;
+ struct Session *s = NULL;
+ char *d = (char *) s;
+
+ if (easy_h == NULL)
+ {
+ GNUNET_break (0);
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Client: connection to ended with reason %i: `%s', %i handles running\n",
+ msg->data.result,
+ curl_easy_strerror (msg->data.result), running);
+ continue;
+ }
+
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_getinfo (easy_h, CURLINFO_PRIVATE, &d));
+ s = (struct Session *) d;
+
+ if (GNUNET_YES != client_exist_session(plugin, s))
+ {
+ GNUNET_break (0);
+ return;
+ }
+
+ GNUNET_assert (s != NULL);
+ if (msg->msg == CURLMSG_DONE)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p/connection %p: connection to `%s' ended with reason %i: `%s'\n",
+ s, msg->easy_handle, GNUNET_i2s (&s->target),
+ msg->data.result,
+ curl_easy_strerror (msg->data.result));
+
+ /* Disconnect other transmission direction and tell transport */
+ client_disconnect (s);
+ }
+ }
+ }
+ while (mret == CURLM_CALL_MULTI_PERFORM);
+ client_schedule (plugin, GNUNET_NO);
+}
+
+static int
+client_connect (struct Session *s)
+{
+
+ struct HTTP_Client_Plugin *plugin = s->plugin;
+ int res = GNUNET_OK;
+ char *url;
+ CURLMcode mret;
+
+ /* create url */
+ if (NULL == http_common_plugin_address_to_string (NULL, s->addr, s->addrlen))
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Invalid address peer `%s'\n",
+ GNUNET_i2s (&s->target));
+ return GNUNET_SYSERR;
+ }
+
+ GNUNET_asprintf (&url, "%s/%s;%u",
+ http_common_plugin_address_to_string (plugin, s->addr, s->addrlen),
+ GNUNET_h2s_full (&plugin->env->my_identity->hashPubKey),
+ plugin->last_tag);
+ plugin->last_tag++;
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Initiating outbound session peer `%s' using address `%s'\n",
+ GNUNET_i2s (&s->target), url);
+
+ /* create get connection */
+ s->client_get = curl_easy_init ();
+#if VERBOSE_CURL
+ curl_easy_setopt (s->client_get, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt (s->client_get, CURLOPT_DEBUGFUNCTION, &client_log);
+ curl_easy_setopt (s->client_get, CURLOPT_DEBUGDATA, s->client_get);
+#endif
+#if BUILD_HTTPS
+ curl_easy_setopt (s->client_get, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
+ curl_easy_setopt (s->client_get, CURLOPT_SSL_VERIFYPEER, 0);
+ curl_easy_setopt (s->client_get, CURLOPT_SSL_VERIFYHOST, 0);
+#endif
+ curl_easy_setopt (s->client_get, CURLOPT_URL, url);
+ //curl_easy_setopt (s->client_get, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
+ //curl_easy_setopt (s->client_get, CURLOPT_WRITEHEADER, ps);
+ curl_easy_setopt (s->client_get, CURLOPT_READFUNCTION, client_send_cb);
+ curl_easy_setopt (s->client_get, CURLOPT_READDATA, s);
+ curl_easy_setopt (s->client_get, CURLOPT_WRITEFUNCTION, client_receive);
+ curl_easy_setopt (s->client_get, CURLOPT_WRITEDATA, s);
+ /* No timeout by default, timeout done with session timeout */
+ curl_easy_setopt (s->client_get, CURLOPT_TIMEOUT, 0);
+ curl_easy_setopt (s->client_get, CURLOPT_PRIVATE, s);
+ curl_easy_setopt (s->client_get, CURLOPT_CONNECTTIMEOUT_MS,
+ (long) HTTP_CLIENT_NOT_VALIDATED_TIMEOUT.rel_value);
+ curl_easy_setopt (s->client_get, CURLOPT_BUFFERSIZE,
+ 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
+#if CURL_TCP_NODELAY
+ curl_easy_setopt (ps->recv_endpoint, CURLOPT_TCP_NODELAY, 1);
+#endif
+
+ /* create put connection */
+ s->client_put = curl_easy_init ();
+#if VERBOSE_CURL
+ curl_easy_setopt (s->client_put, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt (s->client_put, CURLOPT_DEBUGFUNCTION, &client_log);
+ curl_easy_setopt (s->client_put, CURLOPT_DEBUGDATA, s->client_put);
+#endif
+#if BUILD_HTTPS
+ curl_easy_setopt (s->client_put, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
+ curl_easy_setopt (s->client_put, CURLOPT_SSL_VERIFYPEER, 0);
+ curl_easy_setopt (s->client_put, CURLOPT_SSL_VERIFYHOST, 0);
+#endif
+ curl_easy_setopt (s->client_put, CURLOPT_URL, url);
+ curl_easy_setopt (s->client_put, CURLOPT_UPLOAD, 1L);
+ /*
+ struct curl_slist *m_headerlist;
+ m_headerlist = NULL;
+ m_headerlist = curl_slist_append(m_headerlist, "Transfer-Encoding: chunked");
+ curl_easy_setopt(s->client_put, CURLOPT_HTTPHEADER, m_headerlist);*/
+ //curl_easy_setopt (s->client_put, CURLOPT_HEADERFUNCTION, &client_curl_header);
+ //curl_easy_setopt (s->client_put, CURLOPT_WRITEHEADER, ps);
+ curl_easy_setopt (s->client_put, CURLOPT_READFUNCTION, client_send_cb);
+ curl_easy_setopt (s->client_put, CURLOPT_READDATA, s);
+ curl_easy_setopt (s->client_put, CURLOPT_WRITEFUNCTION, client_receive);
+ curl_easy_setopt (s->client_put, CURLOPT_WRITEDATA, s);
+ /* No timeout by default, timeout done with session timeout */
+ curl_easy_setopt (s->client_put, CURLOPT_TIMEOUT, 0);
+ curl_easy_setopt (s->client_put, CURLOPT_PRIVATE, s);
+ curl_easy_setopt (s->client_put, CURLOPT_CONNECTTIMEOUT_MS,
+ (long) HTTP_CLIENT_NOT_VALIDATED_TIMEOUT.rel_value);
+ curl_easy_setopt (s->client_put, CURLOPT_BUFFERSIZE,
+ 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
+#if CURL_TCP_NODELAY
+ curl_easy_setopt (s->client_put, CURLOPT_TCP_NODELAY, 1);
+#endif
+ GNUNET_free (url);
+
+ mret = curl_multi_add_handle (plugin->curl_multi_handle, s->client_get);
+ if (mret != CURLM_OK)
+ {
+ curl_easy_cleanup (s->client_get);
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ mret = curl_multi_add_handle (plugin->curl_multi_handle, s->client_put);
+ if (mret != CURLM_OK)
+ {
+ curl_multi_remove_handle (plugin->curl_multi_handle, s->client_get);
+ curl_easy_cleanup (s->client_get);
+ curl_easy_cleanup (s->client_put);
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+ }
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ "Session %p: connected with connections GET %p and PUT %p\n",
+ s, s->client_get, s->client_put);
+
+ /* Perform connect */
+ plugin->cur_connections += 2;
+ GNUNET_STATISTICS_set (plugin->env->stats,
+ "# HTTP client connections",
+ plugin->cur_connections,
+ GNUNET_NO);
+
+ /* Re-schedule since handles have changed */
+ if (plugin->client_perform_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
+ plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ plugin->client_perform_task = GNUNET_SCHEDULER_add_now (client_run, plugin);
+ return res;
+}
+
+
+/**
+ * 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 *
+http_client_plugin_get_session (void *cls,
+ const struct GNUNET_HELLO_Address *address)
+{
+ struct HTTP_Client_Plugin *plugin = cls;
+ struct Session * s = NULL;
+ struct sockaddr *sa;
+ struct GNUNET_ATS_Information ats;
+ size_t salen = 0;
+ int res;
+
+ GNUNET_assert (plugin != NULL);
+ GNUNET_assert (address != NULL);
+ GNUNET_assert (address->address != NULL);
+
+ /* find existing session */
+ s = client_lookup_session (plugin, address);
+ if (s != NULL)
+ return s;
+
+ if (plugin->max_connections <= plugin->cur_connections)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING, plugin->name,
+ "Maximum number of connections (%u) reached: "
+ "cannot connect to peer `%s'\n",
+ plugin->max_connections,
+ GNUNET_i2s (&address->peer));
+ return NULL;
+ }
+
+ ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
+ ats.value = htonl (GNUNET_ATS_NET_UNSPECIFIED);
+ sa = http_common_socket_from_address (address->address, address->address_length, &res);
+
+ if (GNUNET_SYSERR == res)
+ {
+ return NULL;
+ }
+ else if (GNUNET_YES == res)
+ {
+ GNUNET_assert (NULL != sa);
+ if (AF_INET == sa->sa_family)
+ {
+ salen = sizeof (struct sockaddr_in);
+ }
+ else if (AF_INET == sa->sa_family)
+ {
+ salen = sizeof (struct sockaddr_in6);
+ }
+ ats = plugin->env->get_address_type (plugin->env->cls, sa, salen);
+ GNUNET_free (sa);
+ }
+ else if (GNUNET_NO == res)
+ {
+ ats.value = htonl (GNUNET_ATS_COST_WAN);
+ }
+
+ if (GNUNET_ATS_NET_UNSPECIFIED == ntohl(ats.value))
+ {
+ GNUNET_break (0);
+ return NULL;
+ }
+
+ s = GNUNET_malloc (sizeof (struct Session));
+ memcpy (&s->target, &address->peer, sizeof (struct GNUNET_PeerIdentity));
+ s->plugin = plugin;
+ s->addr = GNUNET_malloc (address->address_length);
+ memcpy (s->addr, address->address, address->address_length);
+ s->addrlen = address->address_length;
+ s->ats_address_network_type = ats.value;
+
+ client_start_session_timeout (s);
+
+ /* add new session */
+ GNUNET_CONTAINER_DLL_insert (plugin->head, plugin->tail, s);
+
+ /* initiate new connection */
+ if (GNUNET_SYSERR == client_connect (s))
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
+ "Cannot connect to peer `%s' address `%s''\n",
+ http_common_plugin_address_to_string (NULL, s->addr, s->addrlen),
+ GNUNET_i2s (&s->target));
+ client_delete_session (s);
+ return NULL;
+ }
+ return s;
+}
+
+
+/**
+ * Setup http_client plugin
+ *
+ * @param plugin the plugin handle
+ * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ */
+static int
+client_start (struct HTTP_Client_Plugin *plugin)
+{
+ curl_global_init (CURL_GLOBAL_ALL);
+ plugin->curl_multi_handle = curl_multi_init ();
+
+ if (NULL == plugin->curl_multi_handle)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
+ _("Could not initialize curl multi handle, failed to start %s plugin!\n"),
+ plugin->name);
+ return GNUNET_SYSERR;
+ }
+ return GNUNET_OK;
+}
+
+/**
+ * Session was idle, so disconnect it
+ */
+static void
+client_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 (TIMEOUT_LOG,
+ "Session %p was idle for %llu ms, disconnecting\n",
+ s, (unsigned long long) CLIENT_SESSION_TIMEOUT.rel_value);
+
+ /* call session destroy function */
+ GNUNET_assert (GNUNET_OK == client_disconnect (s));
+}
+
+
+/**
+ * Start session timeout for session s
+ *
+ * @param s the session
+ */
+static void
+client_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 (CLIENT_SESSION_TIMEOUT,
+ &client_session_timeout,
+ s);
+ GNUNET_log (TIMEOUT_LOG,
+ "Timeout for session %p set to %llu ms\n",
+ s, (unsigned long long) CLIENT_SESSION_TIMEOUT.rel_value);
+}
+
+
+/**
+ * Increment session timeout due to activity for session s
+ *
+ * param s the session
+ */
+static void
+client_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 (CLIENT_SESSION_TIMEOUT,
+ &client_session_timeout,
+ s);
+ GNUNET_log (TIMEOUT_LOG,
+ "Timeout rescheduled for session %p set to %llu ms\n",
+ s, (unsigned long long) CLIENT_SESSION_TIMEOUT.rel_value);
+}
+
+
+/**
+ * Cancel timeout due to activity for session s
+ *
+ * param s the session
+ */
+static void
+client_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 (TIMEOUT_LOG, "Timeout stopped for session %p\n", s);
+ }
+}
+
/**
* Another peer has suggested an address for this
{
/* struct Plugin *plugin = cls; */
- /* check if the address is plausible; if so,
- * add it to our list! */
- return GNUNET_OK;
+ /* A HTTP/S client does not have any valid address so:*/
+ return GNUNET_NO;
}
/**
- * Function called for a quick conversion of the binary address to
- * a numeric address. Note that the caller must not free the
- * address and that the next call to this function is allowed
- * to override the address again.
+ * Exit point from the plugin.
*
- * @param cls closure
- * @param addr binary address
- * @param addrlen length of the address
- * @return string representing the same address
+ * @param cls api as closure
+ * @return NULL
*/
-static const char *
-http_client_plugin_address_to_string (void *cls, const void *addr, size_t addrlen)
+void *
+LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
{
- GNUNET_break (0);
+ struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
+ struct HTTP_Client_Plugin *plugin = api->cls;
+ struct Session *pos;
+ struct Session *next;
+
+ if (NULL == api->cls)
+ {
+ /* Stub shutdown */
+ GNUNET_free (api);
+ return NULL;
+ }
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ _("Shutting down plugin `%s'\n"),
+ plugin->name);
+
+
+ next = plugin->head;
+ while (NULL != (pos = next))
+ {
+ next = pos->next;
+ client_disconnect (pos);
+ }
+ if (GNUNET_SCHEDULER_NO_TASK != plugin->client_perform_task)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
+ plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+
+
+ if (NULL != plugin->curl_multi_handle)
+ {
+ curl_multi_cleanup (plugin->curl_multi_handle);
+ plugin->curl_multi_handle = NULL;
+ }
+ curl_global_cleanup ();
+
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ _("Shutdown for plugin `%s' complete\n"),
+ plugin->name);
+
+ GNUNET_free (plugin);
+ GNUNET_free (api);
return NULL;
}
+/**
+ * Configure plugin
+ *
+ * @param plugin the plugin handle
+ * @return GNUNET_OK on success, GNUNET_SYSERR on failure
+ */
+static int
+client_configure_plugin (struct HTTP_Client_Plugin *plugin)
+{
+ unsigned long long max_connections;
+
+ /* Optional parameters */
+ if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg,
+ plugin->name,
+ "MAX_CONNECTIONS", &max_connections))
+ max_connections = 128;
+ plugin->max_connections = max_connections;
+ GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
+ _("Maximum number of connections is %u\n"),
+ plugin->max_connections);
+ return GNUNET_OK;
+}
/**
* Entry point for the plugin.
struct GNUNET_TRANSPORT_PluginFunctions *api;
struct HTTP_Client_Plugin *plugin;
+ 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->cls = NULL;
+ api->address_to_string = &http_common_plugin_address_to_string;
+ api->string_to_address = &http_common_plugin_string_to_address;
+ api->address_pretty_printer = &http_common_plugin_address_pretty_printer;
+ return api;
+ }
+
plugin = GNUNET_malloc (sizeof (struct HTTP_Client_Plugin));
+ p = plugin;
plugin->env = env;
api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
api->cls = plugin;
api->send = &http_client_plugin_send;
api->disconnect = &http_client_plugin_disconnect;
- api->address_pretty_printer = &http_client_plugin_address_pretty_printer;
api->check_address = &http_client_plugin_address_suggested;
- api->address_to_string = &http_client_plugin_address_to_string;
- return api;
-}
+ api->get_session = &http_client_plugin_get_session;
+ api->address_to_string = &http_common_plugin_address_to_string;
+ api->string_to_address = &http_common_plugin_string_to_address;
+ api->address_pretty_printer = &http_common_plugin_address_pretty_printer;
-/**
- * Exit point from the plugin.
- */
-void *
-LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
-{
- struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
- struct HTTP_Client_Plugin *plugin = api->cls;
+#if BUILD_HTTPS
+ plugin->name = "transport-https_client";
+ plugin->protocol = "https";
+#else
+ plugin->name = "transport-http_client";
+ plugin->protocol = "http";
+#endif
+ plugin->last_tag = 1;
- GNUNET_free (plugin);
- GNUNET_free (api);
- return NULL;
+ if (GNUNET_SYSERR == client_configure_plugin (plugin))
+ {
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
+ return NULL;
+ }
+
+ /* Start client */
+ if (GNUNET_SYSERR == client_start (plugin))
+ {
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
+ return NULL;
+ }
+ return api;
}
/* end of plugin_transport_http_client.c */
projects / oweals / gnunet.git / blobdiff