/*
This file is part of GNUnet
- (C) 2002-2014 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2002-2014 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
* @brief HTTP/S server transport plugin
* @author Matthias Wachs
* @author David Barksdale
+ * @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
/**
- * Session handle for connections.
+ * Information we keep with MHD for an HTTP request.
*/
-struct Session
+struct ServerRequest
{
/**
- * Stored in a linked list.
+ * The session this server request belongs to
+ * Can be NULL, when session was disconnected and freed
*/
- struct Session *next;
+ struct Session *session;
/**
- * Stored in a linked list.
+ * The MHD connection
*/
- struct Session *prev;
+ struct MHD_Connection *mhd_conn;
/**
- * To whom are we talking to (set to our identity
- * if we are still waiting for the welcome message)
+ * The MHD daemon
*/
- struct GNUNET_PeerIdentity target;
+ struct MHD_Daemon *mhd_daemon;
/**
- * Pointer to the global plugin struct.
+ * Options requested by peer
*/
- struct HTTP_Server_Plugin *plugin;
+ uint32_t options;
+#define OPTION_LONG_POLL 1 /* GET request wants long-poll semantics */
/**
- * next pointer for double linked list
+ * _RECV or _SEND
*/
- struct HTTP_Message *msg_head;
+ int direction;
/**
- * previous pointer for double linked list
+ * For PUT requests: Is this the first or last callback with size 0
+ * For GET requests: Have we sent a message
*/
- struct HTTP_Message *msg_tail;
+ int connected;
+
+};
+
+/**
+ * Wrapper to manage addresses
+ */
+struct HttpAddressWrapper
+{
/**
- * Message stream tokenizer for incoming data
+ * Linked list next
*/
- struct GNUNET_SERVER_MessageStreamTokenizer *msg_tk;
+ struct HttpAddressWrapper *next;
/**
- * Client recv handle
+ * Linked list previous
*/
- struct ServerConnection *server_recv;
+ struct HttpAddressWrapper *prev;
/**
- * Client send handle
+ * An address we are using.
*/
- struct ServerConnection *server_send;
+ struct HttpAddress *address;
/**
- * Address
+ * Length of the address.
*/
- struct GNUNET_HELLO_Address *address;
+ size_t addrlen;
+};
+
+
+/**
+ * Message to send using http
+ */
+struct HTTP_Message
+{
+ /**
+ * next pointer for double linked list
+ */
+ struct HTTP_Message *next;
/**
- * Unique HTTP/S connection tag for this connection
+ * previous pointer for double linked list
*/
- uint32_t tag;
+ struct HTTP_Message *prev;
/**
- * ATS network type in NBO
+ * buffer containing data to send
*/
- uint32_t ats_address_network_type;
+ char *buf;
/**
- * Was session given to transport service?
+ * amount of data already sent
*/
- int session_passed;
+ size_t pos;
/**
- * Did we immediately end the session in disconnect_cb
+ * buffer length
*/
- int session_ended;
+ size_t size;
/**
- * Absolute time when to receive data again
- * Used for receive throttling
+ * HTTP/S specific overhead
*/
- struct GNUNET_TIME_Absolute next_receive;
+ size_t overhead;
/**
- * Session timeout task
+ * Continuation function to call once the transmission buffer
+ * has again space available. NULL if there is no
+ * continuation to call.
*/
- GNUNET_SCHEDULER_TaskIdentifier timeout_task;
+ GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
/**
- * Should this session get disconnected? GNUNET_YES/NO
+ * Closure for transmit_cont.
*/
- int disconnect;
+ void *transmit_cont_cls;
};
-struct ServerConnection
+/**
+ * Session handle for connections.
+ */
+struct Session
{
+
/**
- * _RECV or _SEND
+ * To whom are we talking to (set to our identity
+ * if we are still waiting for the welcome message)
*/
- int direction;
+ struct GNUNET_PeerIdentity target;
/**
- * For PUT connections: Is this the first or last callback with size 0
- * For GET connections: Have we sent a message
+ * Pointer to the global plugin struct.
*/
- int connected;
+ struct HTTP_Server_Plugin *plugin;
/**
- * The session this server connection belongs to
+ * next pointer for double linked list
*/
- struct Session *session;
+ struct HTTP_Message *msg_head;
/**
- * The MHD connection
+ * previous pointer for double linked list
*/
- struct MHD_Connection *mhd_conn;
+ struct HTTP_Message *msg_tail;
/**
- * The MHD daemon
+ * Message stream tokenizer for incoming data
*/
- struct MHD_Daemon *mhd_daemon;
+ struct GNUNET_SERVER_MessageStreamTokenizer *msg_tk;
/**
- * Options requested by peer
+ * Client recv handle
*/
- uint32_t options;
-#define OPTION_LONG_POLL 1 /* GET request wants long-poll semantics */
-};
-
+ struct ServerRequest *server_recv;
-/**
- * Encapsulation of all of the state of the plugin.
- */
-struct HTTP_Server_Plugin
-{
/**
- * Our environment.
+ * Client send handle
*/
- struct GNUNET_TRANSPORT_PluginEnvironment *env;
+ struct ServerRequest *server_send;
/**
- * Linked list head of open sessions.
+ * Address
*/
- struct Session *head;
+ struct GNUNET_HELLO_Address *address;
/**
- * Linked list tail of open sessions.
+ * Absolute time when to receive data again
+ * Used for receive throttling
*/
- struct Session *tail;
+ struct GNUNET_TIME_Absolute next_receive;
/**
- * Plugin name
+ * Absolute time when this connection will time out.
*/
- char *name;
+ struct GNUNET_TIME_Absolute timeout;
/**
- * Protocol
+ * Session timeout task
*/
- char *protocol;
+ struct GNUNET_SCHEDULER_Task * timeout_task;
/**
- * My options to be included in the address
+ * Task to resume MHD handling when receiving is allowed again
*/
- uint32_t options;
+ struct GNUNET_SCHEDULER_Task * recv_wakeup_task;
/**
- * External address
+ * Number of bytes waiting for transmission to this peer.
*/
- char *external_hostname;
+ unsigned long long bytes_in_queue;
/**
- * Verify external address
+ * Number of messages waiting for transmission to this peer.
*/
- int verify_external_hostname;
+ unsigned int msgs_in_queue;
/**
- * Maximum number of sockets the plugin can use
- * Each http inbound /outbound connections are two connections
+ * Unique HTTP/S connection tag for this connection
*/
- unsigned int max_connections;
+ uint32_t tag;
/**
- * Current number of sockets the plugin can use
- * Each http inbound /outbound connections are two connections
+ * ATS network type.
*/
- unsigned int cur_connections;
+ enum GNUNET_ATS_Network_Type scope;
/**
- * Did we immediately end the session in disconnect_cb
+ * #GNUNET_YES if this session is known to the service.
*/
- int in_shutdown;
+ int known_to_service;
+
+};
+
+/**
+ * Encapsulation of all of the state of the plugin.
+ */
+struct HTTP_Server_Plugin
+{
/**
- * Length of peer id
+ * Our environment.
*/
- int peer_id_length;
+ struct GNUNET_TRANSPORT_PluginEnvironment *env;
/**
- * External hostname the plugin can be connected to, can be different to
- * the host's FQDN, used e.g. for reverse proxying
+ * Hash map of open sessions.
*/
- struct GNUNET_HELLO_Address *ext_addr;
+ struct GNUNET_CONTAINER_MultiPeerMap *sessions;
/**
- * Notify transport only about external address
+ * Function to call about session status changes.
*/
- unsigned int external_only;
+ GNUNET_TRANSPORT_SessionInfoCallback sic;
/**
- * use IPv6
+ * Closure for @e sic.
*/
- uint16_t use_ipv6;
+ void *sic_cls;
/**
- * use IPv4
+ * Plugin name
*/
- uint16_t use_ipv4;
+ char *name;
/**
- * Port used
+ * Protocol
*/
- uint16_t port;
+ char *protocol;
/**
- * Task calling transport service about external address
+ * External address
*/
- GNUNET_SCHEDULER_TaskIdentifier notify_ext_task;
+ char *external_hostname;
/**
- * NAT handle & address management
+ * External hostname the plugin can be connected to, can be different to
+ * the host's FQDN, used e.g. for reverse proxying
*/
- struct GNUNET_NAT_Handle *nat;
+ struct GNUNET_HELLO_Address *ext_addr;
/**
- * List of own addresses
+ * NAT handle & address management
*/
+ struct GNUNET_NAT_Handle *nat;
/**
* IPv4 addresses DLL head
*/
struct sockaddr_in6 *server_addr_v6;
- /**
- * MHD IPv4 task
- */
- GNUNET_SCHEDULER_TaskIdentifier server_v4_task;
-
- /**
- * MHD IPv6 task
- */
- GNUNET_SCHEDULER_TaskIdentifier server_v6_task;
-
- /**
- * The IPv4 server is scheduled to run asap
- */
- int server_v4_immediately;
-
- /**
- * The IPv6 server is scheduled to run asap
- */
- int server_v6_immediately;
-
/**
* MHD IPv4 daemon
*/
*/
struct MHD_Daemon *server_v6;
- /**
- * Regex for parsing URLs
- */
- regex_t url_regex;
-
#if BUILD_HTTPS
/**
* Crypto related
char *cert;
#endif
-};
+ /**
+ * MHD IPv4 task
+ */
+ struct GNUNET_SCHEDULER_Task * server_v4_task;
+ /**
+ * MHD IPv6 task
+ */
+ struct GNUNET_SCHEDULER_Task * server_v6_task;
-/**
- * Wrapper to manage addresses
- */
-struct HttpAddressWrapper
-{
/**
- * Linked list next
+ * Task calling transport service about external address
*/
- struct HttpAddressWrapper *next;
+ struct GNUNET_SCHEDULER_Task * notify_ext_task;
/**
- * Linked list previous
+ * Notify transport only about external address
*/
- struct HttpAddressWrapper *prev;
+ unsigned int external_only;
- struct HttpAddress *address;
+ /**
+ * The IPv4 server is scheduled to run asap
+ */
+ int server_v4_immediately;
- size_t addrlen;
-};
+ /**
+ * The IPv6 server is scheduled to run asap
+ */
+ int server_v6_immediately;
+ /**
+ * Verify external address
+ */
+ int verify_external_hostname;
-/**
- * Message to send using http
- */
-struct HTTP_Message
-{
/**
- * next pointer for double linked list
+ * Maximum number of sockets the plugin can use
+ * Each http request /request connections are two connections
*/
- struct HTTP_Message *next;
+ unsigned int max_request;
/**
- * previous pointer for double linked list
+ * Current number of sockets the plugin can use
+ * Each http connection are two requests
*/
- struct HTTP_Message *prev;
+ unsigned int cur_request;
/**
- * buffer containing data to send
+ * Did we immediately end the session in disconnect_cb
*/
- char *buf;
+ int in_shutdown;
/**
- * amount of data already sent
+ * Length of peer id
*/
- size_t pos;
+ int peer_id_length;
/**
- * buffer length
+ * My options to be included in the address
*/
- size_t size;
+ uint32_t options;
/**
- * HTTP/S specific overhead
+ * use IPv6
*/
- size_t overhead;
+ uint16_t use_ipv6;
/**
- * Continuation function to call once the transmission buffer
- * has again space available. NULL if there is no
- * continuation to call.
+ * use IPv4
*/
- GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
+ uint16_t use_ipv4;
/**
- * Closure for transmit_cont.
+ * Port used
*/
- void *transmit_cont_cls;
+ uint16_t port;
+
+ /**
+ * Regex for parsing URLs. FIXME: this seems overkill.
+ */
+ regex_t url_regex;
+
};
/**
- * Start session timeout for session s
- * @param s the session
+ * If a session monitor is attached, notify it about the new
+ * session state.
+ *
+ * @param plugin our plugin
+ * @param session session that changed state
+ * @param state new state of the session
*/
static void
-server_start_session_timeout (struct Session *s);
+notify_session_monitor (struct HTTP_Server_Plugin *plugin,
+ struct Session *session,
+ enum GNUNET_TRANSPORT_SessionState state)
+{
+ struct GNUNET_TRANSPORT_SessionInfo info;
+
+ if (NULL == plugin->sic)
+ return;
+ memset (&info, 0, sizeof (info));
+ info.state = state;
+ info.is_inbound = GNUNET_YES;
+ info.num_msg_pending = session->msgs_in_queue;
+ info.num_bytes_pending = session->bytes_in_queue;
+ info.receive_delay = session->next_receive;
+ info.session_timeout = session->timeout;
+ info.address = session->address;
+ plugin->sic (plugin->sic_cls,
+ session,
+ &info);
+}
/**
- * Increment session timeout due to activity for session s
- * @param s the session
+ * Wake up an MHD connection which was suspended
+ *
+ * @param cls the session
+ * @param tc task context
+ */
+static void
+server_wake_up (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct Session *s = cls;
+
+ s->recv_wakeup_task = NULL;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Session %p: Waking up PUT handle\n",
+ s);
+ MHD_resume_connection (s->server_recv->mhd_conn);
+}
+
+
+/**
+ * Reschedule the execution of both IPv4 and IPv6 server.
+ *
+ * @param plugin the plugin
+ * @param server which server to schedule v4 or v6?
+ * @param now #GNUNET_YES to schedule execution immediately, #GNUNET_NO to wait
+ * until timeout
*/
static void
-server_reschedule_session_timeout (struct Session *s);
+server_reschedule (struct HTTP_Server_Plugin *plugin,
+ struct MHD_Daemon *server,
+ int now);
/**
- * Cancel timeout for session s
- * @param s the session
+ * Deletes the session. Must not be used afterwards.
+ *
+ * @param s the session to delete
*/
static void
-server_stop_session_timeout (struct Session *s);
+server_delete_session (struct Session *s)
+{
+ struct HTTP_Server_Plugin *plugin = s->plugin;
+ struct HTTP_Message *msg;
+
+ if (NULL != s->timeout_task)
+ {
+ GNUNET_SCHEDULER_cancel (s->timeout_task);
+ s->timeout_task = NULL;
+ s->timeout = GNUNET_TIME_UNIT_ZERO_ABS;
+ }
+ if (NULL != s->recv_wakeup_task)
+ {
+ GNUNET_SCHEDULER_cancel (s->recv_wakeup_task);
+ s->recv_wakeup_task = NULL;
+ if (NULL != s->server_recv)
+ MHD_resume_connection (s->server_recv->mhd_conn);
+ }
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONTAINER_multipeermap_remove (plugin->sessions,
+ &s->target,
+ s));
+ while (NULL != (msg = s->msg_head))
+ {
+ 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_SYSERR,
+ msg->size,
+ msg->pos + msg->overhead);
+ GNUNET_assert (s->msgs_in_queue > 0);
+ s->msgs_in_queue--;
+ GNUNET_assert (s->bytes_in_queue >= msg->size);
+ s->bytes_in_queue -= msg->size;
+ GNUNET_free (msg);
+ }
+
+ GNUNET_assert (0 == s->msgs_in_queue);
+ GNUNET_assert (0 == s->bytes_in_queue);
+
+ if (NULL != s->server_send)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Server: %p / %p Terminating inbound PUT session to peer `%s'\n",
+ s, s->server_send,
+ GNUNET_i2s (&s->target));
+ s->server_send->session = NULL;
+ MHD_set_connection_option (s->server_send->mhd_conn,
+ MHD_CONNECTION_OPTION_TIMEOUT,
+ 1 /* 0 = no timeout, so this is MIN */);
+ server_reschedule (plugin, s->server_send->mhd_daemon, GNUNET_YES);
+ }
+
+ if (NULL != s->server_recv)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Server: %p / %p Terminating inbound GET session to peer `%s'\n",
+ s, s->server_recv, GNUNET_i2s (&s->target));
+ s->server_recv->session = NULL;
+ MHD_set_connection_option (s->server_recv->mhd_conn,
+ MHD_CONNECTION_OPTION_TIMEOUT,
+ 1 /* 0 = no timeout, so this is MIN */);
+ server_reschedule (plugin, s->server_recv->mhd_daemon, GNUNET_YES);
+ }
+ notify_session_monitor (plugin,
+ s,
+ GNUNET_TRANSPORT_SS_DONE);
+ if (GNUNET_YES == s->known_to_service)
+ {
+ plugin->env->session_end (plugin->env->cls,
+ s->address,
+ s);
+ s->known_to_service = GNUNET_NO;
+ }
+ if (NULL != s->msg_tk)
+ {
+ GNUNET_SERVER_mst_destroy (s->msg_tk);
+ s->msg_tk = NULL;
+ }
+ GNUNET_HELLO_address_free (s->address);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Session %p destroyed\n",
+ s);
+
+ GNUNET_free (s);
+}
/**
- * Disconnect session @a s
+ * Disconnect session @a s by telling MHD to close the
+ * connections (reducing timeout, etc.).
*
* @param cls closure with the `struct HTTP_Server_Plugin`
* @param s the session
*/
static int
http_server_plugin_disconnect_session (void *cls,
- struct Session *s);
+ struct Session *s)
+{
+ server_delete_session (s);
+ return GNUNET_OK;
+}
/**
- * Does session s exist?
+ * Session was idle, so disconnect it
*
- * @param plugin the plugin handle
- * @param s the session
- * @return #GNUNET_YES on success, #GNUNET_NO on error
+ * @param cls the session
+ * @param tc task context
*/
-static int
-server_exist_session (struct HTTP_Server_Plugin *plugin, struct Session *s);
+static void
+server_session_timeout (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct Session *s = cls;
+ struct GNUNET_TIME_Relative left;
+
+ s->timeout_task = NULL;
+ left = GNUNET_TIME_absolute_get_remaining (s->timeout);
+ if (0 != left.rel_value_us)
+ {
+ /* not actually our turn yet, but let's at least update
+ the monitor, it may think we're about to die ... */
+ notify_session_monitor (s->plugin,
+ s,
+ GNUNET_TRANSPORT_SS_UP);
+ s->timeout_task = GNUNET_SCHEDULER_add_delayed (left,
+ &server_session_timeout,
+ s);
+ return;
+ }
+ GNUNET_log (TIMEOUT_LOG,
+ "Session %p was idle for %s, disconnecting\n",
+ s,
+ GNUNET_STRINGS_relative_time_to_string (HTTP_SERVER_SESSION_TIMEOUT,
+ GNUNET_YES));
+ server_delete_session (s);
+}
/**
- * Reschedule the execution of both IPv4 and IPv6 server
- * @param plugin the plugin
- * @param server which server to schedule v4 or v6?
- * @param now #GNUNET_YES to schedule execution immediately, #GNUNET_NO to wait
- * until timeout
+ * Increment session timeout due to activity session @a s
+ *
+ * @param s the session
*/
static void
-server_reschedule (struct HTTP_Server_Plugin *plugin,
- struct MHD_Daemon *server,
- int now);
+server_reschedule_session_timeout (struct Session *s)
+{
+ GNUNET_assert (NULL != s->timeout_task);
+ s->timeout = GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
+}
/**
*/
static ssize_t
http_server_plugin_send (void *cls,
- struct Session *session,
- const char *msgbuf, size_t msgbuf_size,
- unsigned int priority,
- struct GNUNET_TIME_Relative to,
- GNUNET_TRANSPORT_TransmitContinuation cont, void *cont_cls)
+ struct Session *session,
+ const char *msgbuf,
+ size_t msgbuf_size,
+ unsigned int priority,
+ struct GNUNET_TIME_Relative to,
+ GNUNET_TRANSPORT_TransmitContinuation cont,
+ void *cont_cls)
{
struct HTTP_Server_Plugin *plugin = cls;
struct HTTP_Message *msg;
- int bytes_sent = 0;
+ ssize_t bytes_sent = 0;
char *stat_txt;
- GNUNET_assert (plugin != NULL);
- GNUNET_assert (session != NULL);
-
- if (GNUNET_NO == server_exist_session (plugin, session))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- if (session->disconnect)
- return GNUNET_SYSERR;
-
-
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Session %p/connection %p: Sending message with %u to peer `%s'\n",
+ "Session %p/request %p: Sending message with %u to peer `%s'\n",
session,
session->server_send,
msgbuf_size,
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);
-
- GNUNET_asprintf (&stat_txt, "# bytes currently in %s_server buffers", plugin->protocol);
+ memcpy (msg->buf,
+ msgbuf,
+ msgbuf_size);
+ GNUNET_CONTAINER_DLL_insert_tail (session->msg_head,
+ session->msg_tail,
+ msg);
+ session->msgs_in_queue++;
+ session->bytes_in_queue += msg->size;
+ notify_session_monitor (plugin,
+ session,
+ GNUNET_TRANSPORT_SS_UP);
+ GNUNET_asprintf (&stat_txt,
+ "# bytes currently in %s_server buffers",
+ plugin->protocol);
GNUNET_STATISTICS_update (plugin->env->stats,
stat_txt, msgbuf_size, GNUNET_NO);
GNUNET_free (stat_txt);
if (NULL != session->server_send)
- {
server_reschedule (session->plugin,
session->server_send->mhd_daemon,
GNUNET_YES);
- }
return bytes_sent;
}
+/**
+ * Terminate session during shutdown.
+ *
+ * @param cls the `struct HTTP_Server_Plugin *`
+ * @param peer for which this is a session
+ * @param value the `struct Session` to clean up
+ * @return #GNUNET_OK (continue to iterate)
+ */
+static int
+destroy_session_shutdown_cb (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ void *value)
+{
+ struct Session *s = value;
+ struct ServerRequest *sc_send;
+ struct ServerRequest *sc_recv;
+
+ sc_send = s->server_send;
+ sc_recv = s->server_recv;
+ server_delete_session (s);
+
+ GNUNET_free_non_null (sc_send);
+ GNUNET_free_non_null (sc_recv);
+
+ return GNUNET_OK;
+}
+
+/**
+ * Terminate session.
+ *
+ * @param cls the `struct HTTP_Server_Plugin *`
+ * @param peer for which this is a session
+ * @param value the `struct Session` to clean up
+ * @return #GNUNET_OK (continue to iterate)
+ */
+static int
+destroy_session_cb (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ void *value)
+{
+ struct Session *s = value;
+
+ server_delete_session (s);
+ return GNUNET_OK;
+}
+
/**
* Function that can be used to force the plugin to disconnect
* from the given peer and cancel all previous transmissions
const struct GNUNET_PeerIdentity *target)
{
struct HTTP_Server_Plugin *plugin = cls;
- struct Session *next;
- struct Session *pos;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"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)))
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Disconnecting session %p to `%s'\n",
- pos, GNUNET_i2s (target));
- http_server_plugin_disconnect_session (plugin, pos);
- }
- }
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->sessions,
+ target,
+ &destroy_session_cb,
+ plugin);
}
/**
* Creates a new outbound session the transport
- * service will use to send data to the peer
+ * service will use to send data to the peer.
*
- * Since HTTP/S server cannot create sessions, always return NULL
+ * Since HTTP/S server cannot create sessions, always returns NULL.
*
* @param cls the plugin
* @param address the address
/**
- * Deleting the session
- * Must not be used afterwards
+ * Call MHD IPv4 to process pending requests and then go back
+ * and schedule the next run.
*
- * @param cls closure with the `struct HTTP_ServerPlugin`
- * @param s the session to delete
- * @return #GNUNET_OK on success
+ * @param cls plugin as closure
+ * @param tc task context
*/
-static int
-server_delete_session (void *cls,
- struct Session *s)
+static void
+server_v4_run (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct HTTP_Server_Plugin *plugin = cls;
- struct HTTP_Message *msg;
- struct HTTP_Message *tmp;
- server_stop_session_timeout(s);
- GNUNET_CONTAINER_DLL_remove (plugin->head, plugin->tail, s);
- msg = s->msg_head;
- while (NULL != msg)
- {
- tmp = msg->next;
- 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_SYSERR,
- msg->size, msg->pos + msg->overhead);
- GNUNET_free (msg);
- msg = tmp;
- }
- if (NULL != s->msg_tk)
- {
- GNUNET_SERVER_mst_destroy (s->msg_tk);
- s->msg_tk = NULL;
- }
- GNUNET_HELLO_address_free (s->address);
- GNUNET_free_non_null (s->server_recv);
- GNUNET_free_non_null (s->server_send);
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Session %p destroyed\n",
- s);
- GNUNET_free (s);
- return GNUNET_OK;
+ plugin->server_v4_task = NULL;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+ plugin->server_v4_immediately = GNUNET_NO;
+ GNUNET_assert (MHD_YES == MHD_run (plugin->server_v4));
+ server_reschedule (plugin, plugin->server_v4, GNUNET_NO);
}
/**
-* Cancel timeout for session s
-*
-* @param s the session
-*/
+ * Call MHD IPv6 to process pending requests and then go back
+ * and schedule the next run.
+ *
+ * @param cls plugin as closure
+ * @param tc task context
+ */
static void
-server_stop_session_timeout (struct Session *s)
+server_v6_run (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
- 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);
- }
+ struct HTTP_Server_Plugin *plugin = cls;
+
+ plugin->server_v6_task = NULL;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+ plugin->server_v6_immediately = GNUNET_NO;
+ GNUNET_assert (MHD_YES == MHD_run (plugin->server_v6));
+ server_reschedule (plugin, plugin->server_v6, GNUNET_NO);
}
/**
* Function that queries MHD's select sets and
* starts the task waiting for them.
+ *
* @param plugin plugin
* @param daemon_handle the MHD daemon handle
- * @param now schedule immediately
- * @return task identifier
+ * @param now schedule now
+ * @return gnunet task identifier
*/
-static GNUNET_SCHEDULER_TaskIdentifier
+static struct GNUNET_SCHEDULER_Task *
server_schedule (struct HTTP_Server_Plugin *plugin,
struct MHD_Daemon *daemon_handle,
- int now);
+ int now)
+{
+ struct GNUNET_SCHEDULER_Task * ret;
+ fd_set rs;
+ fd_set ws;
+ fd_set es;
+ struct GNUNET_NETWORK_FDSet *wrs;
+ struct GNUNET_NETWORK_FDSet *wws;
+ int max;
+ MHD_UNSIGNED_LONG_LONG timeout;
+ static unsigned long long last_timeout = 0;
+ int haveto;
+ struct GNUNET_TIME_Relative tv;
+
+ if (GNUNET_YES == plugin->in_shutdown)
+ return NULL;
+
+ ret = NULL;
+ FD_ZERO (&rs);
+ FD_ZERO (&ws);
+ FD_ZERO (&es);
+ wrs = GNUNET_NETWORK_fdset_create ();
+ wws = GNUNET_NETWORK_fdset_create ();
+ max = -1;
+ GNUNET_assert (MHD_YES ==
+ MHD_get_fdset (daemon_handle,
+ &rs,
+ &ws,
+ &es,
+ &max));
+ haveto = MHD_get_timeout (daemon_handle, &timeout);
+ if (haveto == MHD_YES)
+ {
+ if (timeout != last_timeout)
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "SELECT Timeout changed from %llu to %llu (ms)\n",
+ last_timeout, timeout);
+ last_timeout = timeout;
+ }
+ if (timeout <= GNUNET_TIME_UNIT_SECONDS.rel_value_us / 1000LL)
+ tv.rel_value_us = (uint64_t) timeout * 1000LL;
+ else
+ tv = GNUNET_TIME_UNIT_SECONDS;
+ }
+ else
+ tv = GNUNET_TIME_UNIT_SECONDS;
+ /* Force immediate run, since we have outbound data to send */
+ if (now == GNUNET_YES)
+ tv = GNUNET_TIME_UNIT_MILLISECONDS;
+ GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
+
+ if (daemon_handle == plugin->server_v4)
+ {
+ if (plugin->server_v4_task != NULL)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
+ plugin->server_v4_task = NULL;
+ }
+#if 0
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Scheduling IPv4 server task in %llu ms\n",
+ tv);
+#endif
+ ret =
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+ tv, wrs, wws,
+ &server_v4_run, plugin);
+ }
+ if (daemon_handle == plugin->server_v6)
+ {
+ if (plugin->server_v6_task != NULL)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
+ plugin->server_v6_task = NULL;
+ }
+#if 0
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Scheduling IPv6 server task in %llu ms\n", tv);
+#endif
+ ret =
+ GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+ tv, wrs, wws,
+ &server_v6_run, plugin);
+ }
+ GNUNET_NETWORK_fdset_destroy (wrs);
+ GNUNET_NETWORK_fdset_destroy (wws);
+ return ret;
+}
/**
* Reschedule the execution of both IPv4 and IPv6 server
+ *
* @param plugin the plugin
* @param server which server to schedule v4 or v6?
* @param now #GNUNET_YES to schedule execution immediately, #GNUNET_NO to wait
if (GNUNET_YES == now)
plugin->server_v4_immediately = GNUNET_YES;
- if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
+ if (plugin->server_v4_task != NULL)
{
GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
- plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
+ plugin->server_v4_task = NULL;
}
plugin->server_v4_task = server_schedule (plugin, plugin->server_v4, now);
}
if (GNUNET_YES == now)
plugin->server_v6_immediately = GNUNET_YES;
- if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
+ if (plugin->server_v6_task != NULL)
{
GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
- plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
+ plugin->server_v6_task = NULL;
}
plugin->server_v6_task = server_schedule (plugin, plugin->server_v6, now);
}
}
-/**
- * Disconnect session @a s
- *
- * @param cls closure with the `struct HTTP_Server_Plugin`
- * @param s the session
- * @return #GNUNET_OK on success
- */
-static int
-http_server_plugin_disconnect_session (void *cls,
- struct Session *s)
-{
- struct HTTP_Server_Plugin *plugin = cls;
- struct ServerConnection * send;
- struct ServerConnection * recv;
-
- if (GNUNET_NO == server_exist_session (plugin, s))
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- s->disconnect = GNUNET_YES;
- send = (struct ServerConnection *) s->server_send;
- if (send != NULL)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Server: %p / %p Terminating inbound PUT session to peer `%s'\n",
- s, send, GNUNET_i2s (&s->target));
-
- MHD_set_connection_option (send->mhd_conn,
- MHD_CONNECTION_OPTION_TIMEOUT,
- 1);
- server_reschedule (s->plugin, send->mhd_daemon, GNUNET_YES);
- }
-
- recv = (struct ServerConnection *) s->server_recv;
- if (recv != NULL)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Server: %p / %p Terminating inbound GET session to peer `%s'\n",
- s, recv, GNUNET_i2s (&s->target));
- MHD_set_connection_option (recv->mhd_conn,
- MHD_CONNECTION_OPTION_TIMEOUT,
- 1);
- server_reschedule (s->plugin, recv->mhd_daemon, GNUNET_YES);
- }
- return GNUNET_OK;
-}
-
-
/**
* Function that is called to get the keepalive factor.
* GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT is divided by this number to
return 3;
}
+
+/**
+ * Function that will be called whenever the transport service wants to
+ * 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 peer which peer was the session for
+ * @param session which session is being updated
+ */
static void
http_server_plugin_update_session_timeout (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- struct Session *session)
+ const struct GNUNET_PeerIdentity *peer,
+ struct Session *session)
{
- struct HTTP_Server_Plugin *plugin = cls;
-
- if (GNUNET_NO == server_exist_session (plugin, session))
- return;
-
server_reschedule_session_timeout (session);
}
struct Session *s,
unsigned int to)
{
- /* Setting timeouts for other connections */
+ /* Setting timeouts for other connections */
if (NULL != s->server_recv)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
if (NULL == url)
{
- GNUNET_break (0);
- return GNUNET_SYSERR;
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
}
if (regexec(&plugin->url_regex, url, 4, matches, 0))
GNUNET_i2s_full (target));
/* convert options */
- if (-1 == matches[3].rm_so) {
- *options = 0;
- } else {
+ if (-1 == matches[3].rm_so)
+ {
+ *options = 0;
+ }
+ else
+ {
rc = strtoul (&url[matches[3].rm_so + 1], &options_end, 10);
if (&url[matches[3].rm_eo] != options_end)
{
"URL options > UINT32_MAX\n");
return GNUNET_SYSERR;
}
- (*options) = (uint32_t)rc;
+ (*options) = (uint32_t) rc;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Found options `%u' in url\n", *options);
+ "Found options `%u' in url\n",
+ *options);
}
return GNUNET_OK;
}
+/**
+ * Closure for #session_tag_it().
+ */
+struct SessionTagContext
+{
+ /**
+ * Set to session matching the tag.
+ */
+ struct Session *res;
+
+ /**
+ * Tag we are looking for.
+ */
+ uint32_t tag;
+};
+
+
+/**
+ * Find a session with a matching tag.
+ *
+ * @param cls the `struct SessionTagContext *`
+ * @param key peer identity (unused)
+ * @param value the `struct Session *`
+ * @return #GNUNET_NO if we found the session, #GNUNET_OK if not
+ */
+static int
+session_tag_it (void *cls,
+ const struct GNUNET_PeerIdentity *key,
+ void *value)
+{
+ struct SessionTagContext *stc = cls;
+ struct Session *s = value;
+
+ if (s->tag == stc->tag)
+ {
+ stc->res = s;
+ return GNUNET_NO;
+ }
+ return GNUNET_YES;
+}
+
+
/**
* Lookup a mhd connection and create one if none is found
*
* @param method PUT or GET
* @return the server connecetion
*/
-static struct ServerConnection *
+static struct ServerRequest *
server_lookup_connection (struct HTTP_Server_Plugin *plugin,
- struct MHD_Connection *mhd_connection, const char *url,
- const char *method)
+ struct MHD_Connection *mhd_connection,
+ const char *url,
+ const char *method)
{
struct Session *s = NULL;
- struct ServerConnection *sc = NULL;
+ struct ServerRequest *sc = NULL;
const union MHD_ConnectionInfo *conn_info;
struct HttpAddress *addr;
-
- struct GNUNET_ATS_Information ats;
struct GNUNET_PeerIdentity target;
size_t addr_len;
- uint32_t tag = 0;
+ struct SessionTagContext stc;
uint32_t options;
int direction = GNUNET_SYSERR;
unsigned int to;
+ enum GNUNET_ATS_Network_Type scope;
conn_info = MHD_get_connection_info (mhd_connection,
MHD_CONNECTION_INFO_CLIENT_ADDRESS);
(conn_info->client_addr->sa_family != AF_INET6))
return NULL;
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "New %s connection from %s\n",
+ "New %s request from %s\n",
method,
url);
-
- if (GNUNET_SYSERR == server_parse_url (plugin, url, &target, &tag, &options))
+ stc.tag = 0;
+ if (GNUNET_SYSERR ==
+ server_parse_url (plugin, url, &target, &stc.tag, &options))
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Invalid url %s\n", url);
direction = _SEND;
else
{
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Invalid method %s connection from %s\n",
- method, url);
- return NULL;
- }
-
- plugin->cur_connections++;
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "New %s connection from %s with tag %u (%u of %u)\n",
- method,
- GNUNET_i2s (&target), tag,
- plugin->cur_connections, plugin->max_connections);
- /* find duplicate session */
- s = plugin->head;
- while (s != NULL)
- {
- if ((0 == memcmp (&s->target, &target, sizeof (struct GNUNET_PeerIdentity))) &&
- (s->tag == tag))
- break;
- s = s->next;
- }
- if (s != NULL)
- {
- if ((_RECEIVE == direction) && (NULL != s->server_recv))
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Duplicate PUT connection from `%s' tag %u, dismissing new connection\n",
- GNUNET_i2s (&target),
- tag);
- return NULL;
- }
- if ((_SEND == direction) && (NULL != s->server_send))
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Duplicate GET connection from `%s' tag %u, dismissing new connection\n",
- GNUNET_i2s (&target),
- tag);
- return NULL;
- }
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Invalid method %s for request from %s\n",
+ method, url);
+ return NULL;
}
- else
+
+ plugin->cur_request++;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "New %s request from %s with tag %u (%u of %u)\n",
+ method,
+ GNUNET_i2s (&target),
+ stc.tag,
+ plugin->cur_request, plugin->max_request);
+ /* find existing session */
+ stc.res = NULL;
+ GNUNET_CONTAINER_multipeermap_get_multiple (plugin->sessions,
+ &target,
+ &session_tag_it,
+ &stc);
+ if (NULL == (s = stc.res))
{
/* create new session */
addr = NULL;
switch (conn_info->client_addr->sa_family)
{
case (AF_INET):
- addr = http_common_address_from_socket (plugin->protocol, conn_info->client_addr, sizeof (struct sockaddr_in));
+ addr = http_common_address_from_socket (plugin->protocol,
+ conn_info->client_addr,
+ sizeof (struct sockaddr_in));
addr_len = http_common_address_get_size (addr);
- ats = plugin->env->get_address_type (plugin->env->cls, conn_info->client_addr, sizeof (struct sockaddr_in));
+ scope = plugin->env->get_address_type (plugin->env->cls,
+ conn_info->client_addr,
+ sizeof (struct sockaddr_in));
break;
case (AF_INET6):
- addr = http_common_address_from_socket (plugin->protocol, conn_info->client_addr, sizeof (struct sockaddr_in6));
+ addr = http_common_address_from_socket (plugin->protocol,
+ conn_info->client_addr,
+ sizeof (struct sockaddr_in6));
addr_len = http_common_address_get_size (addr);
- ats = plugin->env->get_address_type (plugin->env->cls, conn_info->client_addr, sizeof (struct sockaddr_in6));
+ scope = plugin->env->get_address_type (plugin->env->cls,
+ conn_info->client_addr,
+ sizeof (struct sockaddr_in6));
break;
default:
- /* external host name */
- ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
- ats.type = htonl (GNUNET_ATS_NET_WAN);
+ /* external host name */
return NULL;
}
-
s = GNUNET_new (struct Session);
- memcpy (&s->target, &target, sizeof (struct GNUNET_PeerIdentity));
+ s->target = target;
s->plugin = plugin;
- s->address = GNUNET_HELLO_address_allocate (&s->target, PLUGIN_NAME,
- addr, addr_len, GNUNET_HELLO_ADDRESS_INFO_INBOUND);
- s->ats_address_network_type = ats.value;
+ s->scope = scope;
+ s->address = GNUNET_HELLO_address_allocate (&s->target,
+ PLUGIN_NAME,
+ addr,
+ addr_len,
+ GNUNET_HELLO_ADDRESS_INFO_INBOUND);
s->next_receive = GNUNET_TIME_UNIT_ZERO_ABS;
- s->tag = tag;
- s->server_recv = NULL;
- s->server_send = NULL;
- s->session_passed = GNUNET_NO;
- s->session_ended = GNUNET_NO;
- server_start_session_timeout(s);
- GNUNET_CONTAINER_DLL_insert (plugin->head, plugin->tail, s);
-
+ s->tag = stc.tag;
+ s->timeout = GNUNET_TIME_relative_to_absolute (HTTP_SERVER_SESSION_TIMEOUT);
+ s->timeout_task = GNUNET_SCHEDULER_add_delayed (HTTP_SERVER_SESSION_TIMEOUT,
+ &server_session_timeout,
+ s);
+ (void) GNUNET_CONTAINER_multipeermap_put (plugin->sessions,
+ &s->target,
+ s,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+ notify_session_monitor (plugin,
+ s,
+ GNUNET_TRANSPORT_SS_INIT);
+ notify_session_monitor (plugin,
+ s,
+ GNUNET_TRANSPORT_SS_HANDSHAKE);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Creating new session %p for peer `%s' connecting from `%s'\n",
s, GNUNET_i2s (&target),
addr_len));
GNUNET_free_non_null (addr);
}
- sc = GNUNET_new (struct ServerConnection);
+
+ if ( (_RECEIVE == direction) &&
+ (NULL != s->server_recv) )
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Duplicate PUT request from `%s' tag %u, dismissing new request\n",
+ GNUNET_i2s (&target),
+ stc.tag);
+ return NULL;
+ }
+ if ((_SEND == direction) && (NULL != s->server_send))
+ {
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Duplicate GET request from `%s' tag %u, dismissing new request\n",
+ GNUNET_i2s (&target),
+ stc.tag);
+ return NULL;
+ }
+ sc = GNUNET_new (struct ServerRequest);
if (conn_info->client_addr->sa_family == AF_INET)
sc->mhd_daemon = plugin->server_v4;
if (conn_info->client_addr->sa_family == AF_INET6)
sc->session = s;
sc->options = options;
if (direction == _SEND)
+ {
s->server_send = sc;
+ }
if (direction == _RECEIVE)
- s->server_recv = sc;
-
- if ((NULL != s->server_send) && (NULL != s->server_recv))
{
- plugin->env->session_start (NULL, s->address ,s, NULL, 0);
+ s->server_recv = sc;
}
- if ((NULL == s->server_recv) || (NULL == s->server_send))
- {
- to = (HTTP_SERVER_NOT_VALIDATED_TIMEOUT.rel_value_us / 1000LL / 1000LL);
- MHD_set_connection_option (mhd_connection,
- MHD_CONNECTION_OPTION_TIMEOUT, to);
- server_reschedule (plugin, sc->mhd_daemon, GNUNET_NO);
- }
- else
+ if ((GNUNET_NO == s->known_to_service) &&
+ (NULL != s->server_send) &&
+ (NULL != s->server_recv) )
{
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Session %p for peer `%s' fully connected\n",
- s, GNUNET_i2s (&target));
- to = (HTTP_SERVER_SESSION_TIMEOUT.rel_value_us / 1000LL / 1000LL);
- server_mhd_connection_timeout (plugin, s, to);
+ s->known_to_service = GNUNET_YES;
+ notify_session_monitor (plugin,
+ s,
+ GNUNET_TRANSPORT_SS_UP);
+ plugin->env->session_start (plugin->env->cls,
+ s->address,
+ s,
+ s->scope);
}
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Setting timeout for %p to %u sec.\n", sc, to);
+ to = (HTTP_SERVER_SESSION_TIMEOUT.rel_value_us / 1000LL / 1000LL);
+ server_mhd_connection_timeout (plugin, s, to);
return sc;
}
-/**
- * Lookup a session for a server connection
- *
- * @param plugin the plugin
- * @param sc the server connection
- * @return the session found or NULL
- */
-static struct Session *
-server_lookup_session (struct HTTP_Server_Plugin *plugin,
- struct ServerConnection * sc)
-{
- struct Session *s;
-
- for (s = plugin->head; NULL != s; s = s->next)
- if ((s->server_recv == sc) || (s->server_send == sc))
- return s;
- return NULL;
-}
-
-
-static int
-server_exist_session (struct HTTP_Server_Plugin *plugin,
- struct Session *s)
-{
- struct Session * head;
-
- for (head = plugin->head; head != NULL; head = head->next)
- if (head == s)
- return GNUNET_YES;
- return GNUNET_NO;
-}
-
-
/**
* Callback called by MHD when it needs data to send
*
* @param cls current session
* @param pos position in buffer
* @param buf the buffer to write data to
- * @param max max number of bytes available in buffer
- * @return bytes written to buffer
+ * @param max max number of bytes available in @a buf
+ * @return bytes written to @a buf
*/
static ssize_t
-server_send_callback (void *cls, uint64_t pos, char *buf, size_t max)
+server_send_callback (void *cls,
+ uint64_t pos,
+ char *buf,
+ size_t max)
{
- struct Session *s = cls;
- struct ServerConnection *sc;
+ struct ServerRequest *sc = cls;
+ struct Session *s = sc->session;
ssize_t bytes_read = 0;
struct HTTP_Message *msg;
char *stat_txt;
- if (GNUNET_NO == server_exist_session (s->plugin, s))
+ if (NULL == s)
+ {
+ /* session is disconnecting */
return 0;
+ }
+
sc = s->server_send;
if (NULL == sc)
return 0;
/* removing message */
if (msg->pos == msg->size)
{
- GNUNET_CONTAINER_DLL_remove (s->msg_head, s->msg_tail, msg);
+ 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,
msg->size, msg->size + msg->overhead);
+ GNUNET_assert (s->msgs_in_queue > 0);
+ s->msgs_in_queue--;
+ GNUNET_assert (s->bytes_in_queue >= msg->size);
+ s->bytes_in_queue -= msg->size;
GNUNET_free (msg);
+ notify_session_monitor (s->plugin,
+ s,
+ GNUNET_TRANSPORT_SS_UPDATE);
}
}
if (0 < bytes_read)
sc->connected = GNUNET_YES;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Sent %u bytes to peer `%s' with session %p \n",
- bytes_read, GNUNET_i2s (&s->target), s);
- GNUNET_asprintf (&stat_txt, "# bytes currently in %s_server buffers",
+ bytes_read,
+ GNUNET_i2s (&s->target),
+ s);
+ GNUNET_asprintf (&stat_txt,
+ "# bytes currently in %s_server buffers",
s->plugin->protocol);
GNUNET_STATISTICS_update (s->plugin->env->stats,
- stat_txt, -bytes_read, GNUNET_NO);
+ stat_txt,
+ - bytes_read,
+ GNUNET_NO);
GNUNET_free (stat_txt);
- GNUNET_asprintf (&stat_txt, "# bytes transmitted via %s_server",
+ GNUNET_asprintf (&stat_txt,
+ "# bytes transmitted via %s_server",
s->plugin->protocol);
GNUNET_STATISTICS_update (s->plugin->env->stats,
stat_txt, bytes_read, GNUNET_NO);
else if ((sc->options & OPTION_LONG_POLL) && sc->connected)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Completing GET response to peer `%s' with session %p \n",
- GNUNET_i2s (&s->target), s);
+ "Completing GET response to peer `%s' with session %p\n",
+ GNUNET_i2s (&s->target),
+ s);
return MHD_CONTENT_READER_END_OF_STREAM;
}
return bytes_read;
* @return #GNUNET_OK
*/
static int
-server_receive_mst_cb (void *cls, void *client,
+server_receive_mst_cb (void *cls,
+ void *client,
const struct GNUNET_MessageHeader *message)
{
struct Session *s = cls;
struct HTTP_Server_Plugin *plugin = s->plugin;
- struct GNUNET_ATS_Information atsi;
struct GNUNET_TIME_Relative delay;
char *stat_txt;
- if (GNUNET_NO == server_exist_session (s->plugin, s))
- return GNUNET_OK;
-
-
- atsi.type = htonl (GNUNET_ATS_NETWORK_TYPE);
- atsi.value = s->ats_address_network_type;
- GNUNET_break (s->ats_address_network_type != ntohl (GNUNET_ATS_NET_UNSPECIFIED));
-
- delay = plugin->env->receive (plugin->env->cls, s->address, s, message);
- plugin->env->update_address_metrics (plugin->env->cls, s->address, s, &atsi, 1);
-
- GNUNET_asprintf (&stat_txt, "# bytes received via %s_server", plugin->protocol);
+ if (GNUNET_NO == s->known_to_service)
+ {
+ s->known_to_service = GNUNET_YES;
+ plugin->env->session_start (plugin->env->cls,
+ s->address,
+ s,
+ s->scope);
+ notify_session_monitor (plugin,
+ s,
+ GNUNET_TRANSPORT_SS_UP);
+ }
+ delay = plugin->env->receive (plugin->env->cls,
+ s->address,
+ s,
+ message);
+ GNUNET_asprintf (&stat_txt,
+ "# bytes received via %s_server",
+ plugin->protocol);
GNUNET_STATISTICS_update (plugin->env->stats,
stat_txt, ntohs (message->size), GNUNET_NO);
GNUNET_free (stat_txt);
-
- s->session_passed = GNUNET_YES;
- s->next_receive = GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (), delay);
+ s->next_receive = GNUNET_TIME_relative_to_absolute (delay);
if (delay.rel_value_us > 0)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
return GNUNET_OK;
}
+
/**
* Add headers to a request indicating that we allow Cross-Origin Resource
* Sharing.
+ *
+ * @param response response object to modify
*/
static void
add_cors_headers(struct MHD_Response *response)
"86400");
}
+
/**
* MHD callback for a new incoming connection
*
* @param method GET or PUT
* @param version HTTP version
* @param upload_data upload data
- * @param upload_data_size sizeof upload data
+ * @param upload_data_size size of @a upload_data
* @param httpSessionCache the session cache to remember the connection
* @return MHD_YES if connection is accepted, MHD_NO on reject
*/
static int
-server_access_cb (void *cls, struct MHD_Connection *mhd_connection,
- const char *url, const char *method, const char *version,
- const char *upload_data, size_t * upload_data_size,
+server_access_cb (void *cls,
+ struct MHD_Connection *mhd_connection,
+ const char *url,
+ const char *method,
+ const char *version,
+ const char *upload_data,
+ size_t *upload_data_size,
void **httpSessionCache)
{
struct HTTP_Server_Plugin *plugin = cls;
- int res = MHD_YES;
-
- struct ServerConnection *sc = *httpSessionCache;
+ struct ServerRequest *sc = *httpSessionCache;
struct Session *s;
struct MHD_Response *response;
+ int res = MHD_YES;
LOG (GNUNET_ERROR_TYPE_DEBUG,
_("Access from connection %p (%u of %u) for `%s' `%s' url `%s' with upload data size %u\n"),
sc,
- plugin->cur_connections, plugin->max_connections,
- method, version, url, (*upload_data_size));
-
- GNUNET_assert (cls != NULL);
- if (sc == NULL)
+ plugin->cur_request,
+ plugin->max_request,
+ method,
+ version,
+ url,
+ (*upload_data_size));
+ if (NULL == sc)
{
/* CORS pre-flight request */
if (0 == strcmp (MHD_HTTP_METHOD_OPTIONS, method))
{
response = MHD_create_response_from_buffer (0, NULL,
- MHD_RESPMEM_PERSISTENT);
+ MHD_RESPMEM_PERSISTENT);
add_cors_headers(response);
res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
}
/* new connection */
sc = server_lookup_connection (plugin, mhd_connection, url, method);
- if (sc != NULL)
+ if (NULL != sc)
{
+ /* attach to new / existing session */
(*httpSessionCache) = sc;
}
else
{
- response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE), HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
+ /* existing session already has matching connection, refuse */
+ response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),
+ HTTP_ERROR_RESPONSE,
+ MHD_NO,
+ MHD_NO);
MHD_add_response_header (response,
MHD_HTTP_HEADER_CONTENT_TYPE,
"text/html");
return res;
}
}
- else
- {
- /* 'old' connection */
- if (NULL == server_lookup_session (plugin, sc))
- {
- /* Session was already disconnected */
- return MHD_NO;
- }
- }
-
- /* existing connection */
- sc = (*httpSessionCache);
- s = sc->session;
- GNUNET_assert (NULL != s);
- /* connection is to be disconnected */
- if (s->disconnect == GNUNET_YES)
+ /* 'old' connection */
+ if (NULL == (s = sc->session))
{
- /* Sent HTTP/1.1: 200 OK as response */
+ /* Session was already disconnected;
+ sent HTTP/1.1: 200 OK as response */
response = MHD_create_response_from_data (strlen ("Thank you!"),
- "Thank you!",
- MHD_NO, MHD_NO);
+ "Thank you!", MHD_NO, MHD_NO);
add_cors_headers(response);
MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
return MHD_YES;
}
- GNUNET_assert (s != NULL);
if (sc->direction == _SEND)
{
- response = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN,
- 32 * 1024,
- &server_send_callback, s,
- NULL);
+ response = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN, 32 * 1024,
+ &server_send_callback, sc, NULL);
add_cors_headers(response);
MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
sc->connected = GNUNET_NO;
/* Sent HTTP/1.1: 200 OK as PUT Response\ */
response = MHD_create_response_from_data (strlen ("Thank you!"),
- "Thank you!",
- MHD_NO, MHD_NO);
+ "Thank you!", MHD_NO, MHD_NO);
add_cors_headers(response);
MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
}
else if ((*upload_data_size > 0) && (sc->connected == GNUNET_YES))
{
+ struct GNUNET_TIME_Relative delay;
+
/* (*upload_data_size > 0) for every segment received */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Session %p / Connection %p: Peer `%s' PUT on address `%s' received %u bytes\n",
s->address->address,
s->address->address_length),
*upload_data_size);
- struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
-
- if ((s->next_receive.abs_value_us <= now.abs_value_us))
+ delay = GNUNET_TIME_absolute_get_remaining (s->next_receive);
+ if (0 == delay.rel_value_us)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"PUT with %u bytes forwarded to MST\n",
{
s->msg_tk = GNUNET_SERVER_mst_create (&server_receive_mst_cb, s);
}
- GNUNET_SERVER_mst_receive (s->msg_tk, s, upload_data,
- *upload_data_size, GNUNET_NO, GNUNET_NO);
+ GNUNET_SERVER_mst_receive (s->msg_tk, s, upload_data, *upload_data_size,
+ GNUNET_NO, GNUNET_NO);
server_mhd_connection_timeout (plugin, s,
- GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value_us / 1000LL / 1000LL);
+ GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value_us / 1000LL
+ / 1000LL);
(*upload_data_size) = 0;
}
else
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Session %p / Connection %p: no inbound bandwidth available! Next read was delayed by %s\n",
- s, sc,
- GNUNET_STRINGS_relative_time_to_string (GNUNET_TIME_absolute_get_duration (s->next_receive),
- GNUNET_YES));
+ /* delay processing */
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
+ "Session %p / Connection %p: no inbound bandwidth available! Next read was delayed by %s\n",
+ s, sc, GNUNET_STRINGS_relative_time_to_string (delay, GNUNET_YES));
+ GNUNET_assert(s->server_recv->mhd_conn == mhd_connection);
+ MHD_suspend_connection (s->server_recv->mhd_conn);
+ if (NULL == s->recv_wakeup_task)
+ s->recv_wakeup_task = GNUNET_SCHEDULER_add_delayed (delay,
+ &server_wake_up, s);
}
return MHD_YES;
}
* @param httpSessionCache the pointer to distinguish
*/
static void
-server_disconnect_cb (void *cls, struct MHD_Connection *connection,
+server_disconnect_cb (void *cls,
+ struct MHD_Connection *connection,
void **httpSessionCache)
{
struct HTTP_Server_Plugin *plugin = cls;
- struct ServerConnection *sc = *httpSessionCache;
- struct Session *s;
- struct Session *t;
+ struct ServerRequest *sc = *httpSessionCache;
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Disconnect for connection %p\n",
sc);
- if (sc == NULL)
- return;
-
- if (NULL == (s = server_lookup_session (plugin, sc)))
- return;
- for (t = plugin->head; t != NULL; t = t->next)
- if (t == s)
- break;
- if (NULL == t)
+ if (NULL == sc)
+ {
+ /* CORS pre-flight request finished */
return;
+ }
- if (sc->direction == _SEND)
+ if (NULL != sc->session)
{
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Peer `%s' connection %p, GET on address `%s' disconnected\n",
- GNUNET_i2s (&s->target), s->server_send,
- http_common_plugin_address_to_string (plugin->protocol,
- s->address->address,
- s->address->address_length));
- s->server_send = NULL;
- if (!(sc->options & OPTION_LONG_POLL) && NULL != (s->server_recv))
+ if (sc->direction == _SEND)
{
- s->disconnect = GNUNET_YES;
- GNUNET_assert (NULL != s->server_recv->mhd_conn);
-#if MHD_VERSION >= 0x00090E00
- MHD_set_connection_option (s->server_recv->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT,
- 1);
-#endif
- server_reschedule (plugin, s->server_recv->mhd_daemon, GNUNET_NO);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Peer `%s' connection %p, GET on address `%s' disconnected\n",
+ GNUNET_i2s (&sc->session->target),
+ sc->session->server_send,
+ http_common_plugin_address_to_string (plugin->protocol,
+ sc->session->address->address,
+ sc->session->address->address_length));
+
+ sc->session->server_send = NULL;
}
- }
- if (sc->direction == _RECEIVE)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Peer `%s' connection %p PUT on address `%s' disconnected\n",
- GNUNET_i2s (&s->target), s->server_recv,
- http_common_plugin_address_to_string (plugin->protocol,
- s->address->address,
- s->address->address_length));
- s->server_recv = NULL;
- if (s->msg_tk != NULL)
+ else if (sc->direction == _RECEIVE)
{
- GNUNET_SERVER_mst_destroy (s->msg_tk);
- s->msg_tk = NULL;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "Peer `%s' connection %p PUT on address `%s' disconnected\n",
+ GNUNET_i2s (&sc->session->target),
+ sc->session->server_recv,
+ http_common_plugin_address_to_string (plugin->protocol,
+ sc->session->address->address,
+ sc->session->address->address_length));
+ sc->session->server_recv = NULL;
+ if (NULL != sc->session->msg_tk)
+ {
+ GNUNET_SERVER_mst_destroy (sc->session->msg_tk);
+ sc->session->msg_tk = NULL;
+ }
}
}
-
GNUNET_free (sc);
- plugin->cur_connections--;
-
- if (s->disconnect && (s->server_send == NULL) && (s->server_recv == NULL))
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Peer `%s' on address `%s' disconnected\n",
- GNUNET_i2s (&s->target),
- http_common_plugin_address_to_string (plugin->protocol,
- s->address->address,
- s->address->address_length));
-
- if ((GNUNET_YES == s->session_passed) && (GNUNET_NO == s->session_ended))
- {
- /* Notify transport immediately that this session is invalid */
- s->session_ended = GNUNET_YES;
- plugin->env->session_end (plugin->env->cls, s->address, s);
- }
- server_delete_session (plugin, s);
- }
+ plugin->cur_request--;
}
*
* @param cls plugin as closure
* @param addr address of incoming connection
- * @param addr_len address length of incoming connection
+ * @param addr_len number of bytes in @a addr
* @return MHD_YES if connection is accepted, MHD_NO if connection is rejected
*/
static int
-server_accept_cb (void *cls, const struct sockaddr *addr, socklen_t addr_len)
+server_accept_cb (void *cls,
+ const struct sockaddr *addr,
+ socklen_t addr_len)
{
struct HTTP_Server_Plugin *plugin = cls;
- if (plugin->cur_connections <= plugin->max_connections)
+ if (plugin->cur_request <= plugin->max_request)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
_("Accepting connection (%u of %u) from `%s'\n"),
- plugin->cur_connections, plugin->max_connections,
+ plugin->cur_request, plugin->max_request,
GNUNET_a2s (addr, addr_len));
return MHD_YES;
}
{
LOG (GNUNET_ERROR_TYPE_WARNING,
_("Server reached maximum number connections (%u), rejecting new connection\n"),
- plugin->max_connections);
+ plugin->max_request);
return MHD_NO;
- }
-}
-
-
-static void
-server_log (void *arg, const char *fmt, va_list ap)
-{
- char text[1024];
-
- vsnprintf (text, sizeof (text), fmt, ap);
- va_end (ap);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Server: %s\n", text);
-}
-
-
-/**
- * Call MHD IPv4 to process pending requests and then go back
- * and schedule the next run.
- * @param cls plugin as closure
- * @param tc task context
- */
-static void
-server_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct HTTP_Server_Plugin *plugin = cls;
-
- GNUNET_assert (cls != NULL);
-
- plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
- if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
- return;
-#if 0
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Running IPv4 server\n");
-#endif
- plugin->server_v4_immediately = GNUNET_NO;
- GNUNET_assert (MHD_YES == MHD_run (plugin->server_v4));
- server_reschedule (plugin, plugin->server_v4, GNUNET_NO);
-}
-
-
-/**
- * Call MHD IPv6 to process pending requests and then go back
- * and schedule the next run.
- * @param cls plugin as closure
- * @param tc task context
- */
-static void
-server_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct HTTP_Server_Plugin *plugin = cls;
-
- GNUNET_assert (cls != NULL);
- plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
- if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
- return;
-#if 0
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Running IPv6 server\n");
-#endif
- plugin->server_v6_immediately = GNUNET_NO;
- GNUNET_assert (MHD_YES == MHD_run (plugin->server_v6));
- server_reschedule (plugin, plugin->server_v6, GNUNET_NO);
-}
-
-
-/**
- * Function that queries MHD's select sets and
- * starts the task waiting for them.
- *
- * @param plugin plugin
- * @param daemon_handle the MHD daemon handle
- * @return gnunet task identifier
- */
-static GNUNET_SCHEDULER_TaskIdentifier
-server_schedule (struct HTTP_Server_Plugin *plugin,
- struct MHD_Daemon *daemon_handle,
- int now)
-{
- GNUNET_SCHEDULER_TaskIdentifier ret;
- fd_set rs;
- fd_set ws;
- fd_set es;
- struct GNUNET_NETWORK_FDSet *wrs;
- struct GNUNET_NETWORK_FDSet *wws;
- struct GNUNET_NETWORK_FDSet *wes;
- int max;
- MHD_UNSIGNED_LONG_LONG timeout;
- static unsigned long long last_timeout = 0;
- int haveto;
-
- struct GNUNET_TIME_Relative tv;
-
- if (GNUNET_YES == plugin->in_shutdown)
- return GNUNET_SCHEDULER_NO_TASK;
-
- ret = GNUNET_SCHEDULER_NO_TASK;
- FD_ZERO (&rs);
- FD_ZERO (&ws);
- FD_ZERO (&es);
- wrs = GNUNET_NETWORK_fdset_create ();
- wes = GNUNET_NETWORK_fdset_create ();
- wws = GNUNET_NETWORK_fdset_create ();
- max = -1;
- GNUNET_assert (MHD_YES == MHD_get_fdset (daemon_handle, &rs, &ws, &es, &max));
- haveto = MHD_get_timeout (daemon_handle, &timeout);
- if (haveto == MHD_YES)
- {
- if (timeout != last_timeout)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "SELECT Timeout changed from %llu to %llu (ms)\n",
- last_timeout, timeout);
- last_timeout = timeout;
- }
- if (timeout <= GNUNET_TIME_UNIT_SECONDS.rel_value_us / 1000LL)
- tv.rel_value_us = (uint64_t) timeout * 1000LL;
- else
- tv = GNUNET_TIME_UNIT_SECONDS;
- }
- else
- tv = GNUNET_TIME_UNIT_SECONDS;
- /* Force immediate run, since we have outbound data to send */
- if (now == GNUNET_YES)
- tv = GNUNET_TIME_UNIT_MILLISECONDS;
- GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
- GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
- GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
-
- if (daemon_handle == plugin->server_v4)
- {
- if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
- plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
- }
-#if 0
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling IPv4 server task in %llu ms\n",
- tv);
-#endif
- ret =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- tv, wrs, wws,
- &server_v4_run, plugin);
- }
- if (daemon_handle == plugin->server_v6)
- {
- if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
- plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
- }
-#if 0
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Scheduling IPv6 server task in %llu ms\n", tv);
-#endif
- ret =
- GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- tv, wrs, wws,
- &server_v6_run, plugin);
- }
- GNUNET_NETWORK_fdset_destroy (wrs);
- GNUNET_NETWORK_fdset_destroy (wws);
- GNUNET_NETWORK_fdset_destroy (wes);
- return ret;
+ }
+}
+
+
+/**
+ * Log function called by MHD.
+ *
+ * @param arg NULL
+ * @param fmt format string
+ * @param ap arguments for the format string (va_start() and va_end()
+ * will be called by MHD)
+ */
+static void
+server_log (void *arg,
+ const char *fmt,
+ va_list ap)
+{
+ char text[1024];
+
+ vsnprintf (text,
+ sizeof (text),
+ fmt,
+ ap);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Server: %s\n",
+ text);
}
gn_file =
GNUNET_DISK_file_open (file, GNUNET_DISK_OPEN_READ,
GNUNET_DISK_PERM_USER_READ);
- if (gn_file == NULL)
+ if (NULL == gn_file)
{
GNUNET_free (text);
return NULL;
if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg, plugin->name,
+ GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg,
+ plugin->name,
"KEY_FILE", &key_file))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
return GNUNET_SYSERR;
}
if (GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg, plugin->name,
+ GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg,
+ plugin->name,
"CERT_FILE", &cert_file))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
NULL, NULL, NULL,
"gnunet-transport-certificate-creation",
"gnunet-transport-certificate-creation",
- key_file, cert_file, NULL);
- if (cert_creation == NULL)
+ key_file,
+ cert_file,
+ NULL);
+ if (NULL == cert_creation)
{
LOG (GNUNET_ERROR_TYPE_ERROR,
_("Could not create a new TLS certificate, program `gnunet-transport-certificate-creation' could not be started!\n"));
}
GNUNET_free (key_file);
GNUNET_free (cert_file);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "TLS certificate loaded\n");
return res;
}
#endif
/**
- * Start the HTTP server
+ * Invoke `MHD_start_daemon` with the various options we need to
+ * setup the HTTP server with the given listen address.
*
- * @param plugin the plugin handle
- * @return GNUNET_OK on success, GNUNET_SYSERR on failure
+ * @param plugin our plugin
+ * @param addr listen address to use
+ * @param v6 MHD_NO_FLAG or MHD_USE_IPv6, depending on context
+ * @return NULL on error
*/
-static int
-server_start (struct HTTP_Server_Plugin *plugin)
+static struct MHD_Daemon *
+run_mhd_start_daemon (struct HTTP_Server_Plugin *plugin,
+ const struct sockaddr_in *addr,
+ int v6)
{
+ struct MHD_Daemon *server;
unsigned int timeout;
- char *msg;
- GNUNET_assert (NULL != plugin);
-
-#if BUILD_HTTPS
- if (GNUNET_SYSERR == server_load_certificate (plugin))
- {
- LOG (GNUNET_ERROR_TYPE_ERROR,
- "Could not load or create server certificate! Loading plugin failed!\n");
- return GNUNET_SYSERR;
- }
-#endif
-
#if MHD_VERSION >= 0x00090E00
timeout = HTTP_SERVER_NOT_VALIDATED_TIMEOUT.rel_value_us / 1000LL / 1000LL;
"MHD cannot set timeout per connection! Default time out %u sec.\n",
timeout);
#endif
-
- plugin->server_v4 = NULL;
- if (plugin->use_ipv4 == GNUNET_YES)
- {
- plugin->server_v4 = MHD_start_daemon (
+ server = MHD_start_daemon (
#if VERBOSE_SERVER
- MHD_USE_DEBUG |
+ MHD_USE_DEBUG |
+#endif
+#if BUILD_HTTPS
+ MHD_USE_SSL |
#endif
+ MHD_USE_SUSPEND_RESUME |
+ v6,
+ plugin->port,
+ &server_accept_cb, plugin,
+ &server_access_cb, plugin,
+ MHD_OPTION_SOCK_ADDR,
+ addr,
+ MHD_OPTION_CONNECTION_LIMIT,
+ (unsigned int) plugin->max_request,
#if BUILD_HTTPS
- MHD_USE_SSL |
+ MHD_OPTION_HTTPS_PRIORITIES,
+ plugin->crypto_init,
+ MHD_OPTION_HTTPS_MEM_KEY,
+ plugin->key,
+ MHD_OPTION_HTTPS_MEM_CERT,
+ plugin->cert,
+#endif
+ MHD_OPTION_CONNECTION_TIMEOUT,
+ timeout,
+ MHD_OPTION_CONNECTION_MEMORY_LIMIT,
+ (size_t) (2 *
+ GNUNET_SERVER_MAX_MESSAGE_SIZE),
+ MHD_OPTION_NOTIFY_COMPLETED,
+ &server_disconnect_cb, plugin,
+ MHD_OPTION_EXTERNAL_LOGGER,
+ &server_log, NULL,
+ MHD_OPTION_END);
+#ifdef TCP_STEALTH
+ if ( (NULL != server) &&
+ (0 != (plugin->options & HTTP_OPTIONS_TCP_STEALTH)) )
+ {
+ const union MHD_DaemonInfo *di;
+
+ di = MHD_get_daemon_info (server,
+ MHD_DAEMON_INFO_LISTEN_FD,
+ NULL);
+ if ( (0 != setsockopt ((int) di->listen_fd,
+ IPPROTO_TCP,
+ TCP_STEALTH,
+ plugin->env->my_identity,
+ sizeof (struct GNUNET_PeerIdentity))) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("TCP_STEALTH not supported on this platform.\n"));
+ MHD_stop_daemon (server);
+ server = NULL;
+ }
+ }
#endif
- MHD_NO_FLAG, plugin->port,
- &server_accept_cb, plugin,
- &server_access_cb, plugin,
- MHD_OPTION_SOCK_ADDR,
- (struct sockaddr_in *)
- plugin->server_addr_v4,
- MHD_OPTION_CONNECTION_LIMIT,
- (unsigned int)
- plugin->max_connections,
+ return server;
+}
+
+
+/**
+ * Start the HTTP server
+ *
+ * @param plugin the plugin handle
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
+ */
+static int
+server_start (struct HTTP_Server_Plugin *plugin)
+{
+ const char *msg;
+
+ GNUNET_assert (NULL != plugin);
#if BUILD_HTTPS
- MHD_OPTION_HTTPS_PRIORITIES,
- plugin->crypto_init,
- MHD_OPTION_HTTPS_MEM_KEY,
- plugin->key,
- MHD_OPTION_HTTPS_MEM_CERT,
- plugin->cert,
+ if (GNUNET_SYSERR == server_load_certificate (plugin))
+ {
+ LOG (GNUNET_ERROR_TYPE_ERROR,
+ _("Could not load or create server certificate! Loading plugin failed!\n"));
+ return GNUNET_SYSERR;
+ }
#endif
- MHD_OPTION_CONNECTION_TIMEOUT,
- timeout,
- MHD_OPTION_CONNECTION_MEMORY_LIMIT,
- (size_t) (2 *
- GNUNET_SERVER_MAX_MESSAGE_SIZE),
- MHD_OPTION_NOTIFY_COMPLETED,
- &server_disconnect_cb, plugin,
- MHD_OPTION_EXTERNAL_LOGGER,
- server_log, NULL, MHD_OPTION_END);
- if (plugin->server_v4 == NULL)
+
+
+
+ plugin->server_v4 = NULL;
+ if (GNUNET_YES == plugin->use_ipv4)
+ {
+ plugin->server_v4
+ = run_mhd_start_daemon (plugin,
+ (const struct sockaddr_in *) plugin->server_addr_v4,
+ MHD_NO_FLAG);
+
+ if (NULL == plugin->server_v4)
{
LOG (GNUNET_ERROR_TYPE_ERROR,
"Failed to start %s IPv4 server component on port %u\n",
- plugin->name, plugin->port);
+ plugin->name,
+ plugin->port);
}
else
- server_reschedule (plugin, plugin->server_v4, GNUNET_NO);
+ server_reschedule (plugin,
+ plugin->server_v4,
+ GNUNET_NO);
}
plugin->server_v6 = NULL;
- if (plugin->use_ipv6 == GNUNET_YES)
+ if (GNUNET_YES == plugin->use_ipv6)
{
- plugin->server_v6 = MHD_start_daemon (
-#if VERBOSE_SERVER
- MHD_USE_DEBUG |
-#endif
-#if BUILD_HTTPS
- MHD_USE_SSL |
-#endif
- MHD_USE_IPv6, plugin->port,
- &server_accept_cb, plugin,
- &server_access_cb, plugin,
- MHD_OPTION_SOCK_ADDR,
- (struct sockaddr_in6 *)
- plugin->server_addr_v6,
- MHD_OPTION_CONNECTION_LIMIT,
- (unsigned int)
- plugin->max_connections,
-#if BUILD_HTTPS
- MHD_OPTION_HTTPS_PRIORITIES,
- plugin->crypto_init,
- MHD_OPTION_HTTPS_MEM_KEY,
- plugin->key,
- MHD_OPTION_HTTPS_MEM_CERT,
- plugin->cert,
-#endif
- MHD_OPTION_CONNECTION_TIMEOUT,
- timeout,
- MHD_OPTION_CONNECTION_MEMORY_LIMIT,
- (size_t) (2 *
- GNUNET_SERVER_MAX_MESSAGE_SIZE),
- MHD_OPTION_NOTIFY_COMPLETED,
- &server_disconnect_cb, plugin,
- MHD_OPTION_EXTERNAL_LOGGER,
- server_log, NULL, MHD_OPTION_END);
- if (plugin->server_v6 == NULL)
+ plugin->server_v6
+ = run_mhd_start_daemon (plugin,
+ (const struct sockaddr_in *) plugin->server_addr_v6,
+ MHD_USE_IPv6);
+ if (NULL == plugin->server_v6)
{
LOG (GNUNET_ERROR_TYPE_ERROR,
"Failed to start %s IPv6 server component on port %u\n",
- plugin->name, plugin->port);
+ plugin->name,
+ plugin->port);
}
else
- server_reschedule (plugin, plugin->server_v6, GNUNET_NO);
+ {
+ server_reschedule (plugin,
+ plugin->server_v6,
+ GNUNET_NO);
+ }
}
-
- msg = "No";
- if ((plugin->server_v6 == NULL) && (plugin->server_v4 == NULL))
+ msg = "No";
+ if ( (NULL == plugin->server_v6) &&
+ (NULL == plugin->server_v4) )
{
LOG (GNUNET_ERROR_TYPE_ERROR,
"%s %s server component started on port %u\n",
- msg, plugin->name, plugin->port);
- sleep (10);
+ msg,
+ plugin->name,
+ plugin->port);
return GNUNET_SYSERR;
}
- else if ((plugin->server_v6 != NULL) && (plugin->server_v4 != NULL))
- msg = "IPv4 and IPv6";
- else if (plugin->server_v6 != NULL)
- msg = "IPv6";
- else if (plugin->server_v4 != NULL)
- msg = "IPv4";
+ if ((NULL != plugin->server_v6) &&
+ (NULL != plugin->server_v4))
+ msg = "IPv4 and IPv6";
+ else if (NULL != plugin->server_v6)
+ msg = "IPv6";
+ else if (NULL != plugin->server_v4)
+ msg = "IPv4";
LOG (GNUNET_ERROR_TYPE_DEBUG,
"%s %s server component started on port %u\n",
- msg, plugin->name, plugin->port);
+ msg,
+ plugin->name,
+ plugin->port);
return GNUNET_OK;
}
-void
-server_stop (struct HTTP_Server_Plugin *plugin)
-{
- if (plugin->server_v4 != NULL)
- {
- MHD_stop_daemon (plugin->server_v4);
- plugin->server_v4 = NULL;
- }
- if ( plugin->server_v6 != NULL)
- {
- MHD_stop_daemon (plugin->server_v6);
- plugin->server_v6 = NULL;
- }
-
-
- if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
- plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
- }
-
- if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
- plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
- }
-#if BUILD_HTTPS
- GNUNET_free_non_null (plugin->crypto_init);
- GNUNET_free_non_null (plugin->cert);
- GNUNET_free_non_null (plugin->key);
-#endif
-
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "%s server component stopped\n",
- plugin->name);
-}
-
-
/**
* Add an address to the server's set of addresses and notify transport
*
* @param cls the plugin handle
- * @param add_remove GNUNET_YES on add, GNUNET_NO on remove
+ * @param add_remove #GNUNET_YES on add, #GNUNET_NO on remove
* @param addr the address
* @param addrlen address length
*/
static void
-server_add_address (void *cls, int add_remove, const struct sockaddr *addr,
- socklen_t addrlen)
+server_add_address (void *cls,
+ int add_remove,
+ const struct sockaddr *addr,
+ socklen_t addrlen)
{
struct HTTP_Server_Plugin *plugin = cls;
struct GNUNET_HELLO_Address *address;
struct HttpAddressWrapper *w = NULL;
w = GNUNET_new (struct HttpAddressWrapper);
- w->address = http_common_address_from_socket (plugin->protocol, addr, addrlen);
+ w->address = http_common_address_from_socket (plugin->protocol,
+ addr,
+ addrlen);
if (NULL == w->address)
{
GNUNET_free (w);
}
w->addrlen = http_common_address_get_size (w->address);
- GNUNET_CONTAINER_DLL_insert(plugin->addr_head, plugin->addr_tail, w);
+ GNUNET_CONTAINER_DLL_insert (plugin->addr_head,
+ plugin->addr_tail,
+ w);
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Notifying transport to add address `%s'\n",
http_common_plugin_address_to_string (plugin->protocol,
"http_client", w->address, w->addrlen, GNUNET_HELLO_ADDRESS_INFO_NONE);
#endif
- plugin->env->notify_address (plugin->env->cls, add_remove, address);
+ plugin->env->notify_address (plugin->env->cls,
+ add_remove,
+ address);
GNUNET_HELLO_address_free (address);
}
* Remove an address from the server's set of addresses and notify transport
*
* @param cls the plugin handle
- * @param add_remove GNUNET_YES on add, GNUNET_NO on remove
+ * @param add_remove #GNUNET_YES on add, #GNUNET_NO on remove
* @param addr the address
* @param addrlen address length
*/
static void
-server_remove_address (void *cls, int add_remove, const struct sockaddr *addr,
- socklen_t addrlen)
+server_remove_address (void *cls,
+ int add_remove,
+ const struct sockaddr *addr,
+ socklen_t addrlen)
{
struct HTTP_Server_Plugin *plugin = cls;
struct GNUNET_HELLO_Address *address;
struct HttpAddressWrapper *w = plugin->addr_head;
size_t saddr_len;
- void * saddr = http_common_address_from_socket (plugin->protocol, addr, addrlen);
+ void * saddr;
+
+ saddr = http_common_address_from_socket (plugin->protocol,
+ addr,
+ addrlen);
if (NULL == saddr)
return;
- saddr_len = http_common_address_get_size (saddr);
+ saddr_len = http_common_address_get_size (saddr);
while (NULL != w)
{
- if (GNUNET_YES == http_common_cmp_addresses(w->address, w->addrlen, saddr, saddr_len))
- break;
- w = w->next;
+ if (GNUNET_YES ==
+ http_common_cmp_addresses (w->address,
+ w->addrlen,
+ saddr,
+ saddr_len))
+ break;
+ w = w->next;
}
GNUNET_free (saddr);
http_common_plugin_address_to_string (plugin->protocol,
w->address,
w->addrlen));
-
-
- GNUNET_CONTAINER_DLL_remove (plugin->addr_head, plugin->addr_tail, w);
-
+ GNUNET_CONTAINER_DLL_remove (plugin->addr_head,
+ plugin->addr_tail,
+ w);
/* modify our published address list */
#if BUILD_HTTPS
address = GNUNET_HELLO_address_allocate (plugin->env->my_identity,
* Our external IP address/port mapping has changed.
*
* @param cls closure, the 'struct LocalAddrList'
- * @param add_remove GNUNET_YES to mean the new public IP address, GNUNET_NO to mean
+ * @param add_remove #GNUNET_YES to mean the new public IP address, #GNUNET_NO to mean
* the previous (now invalid) one
* @param addr either the previous or the new public IP address
* @param addrlen actual lenght of the address
*/
static void
-server_nat_port_map_callback (void *cls, int add_remove, const struct sockaddr *addr,
- socklen_t addrlen)
+server_nat_port_map_callback (void *cls,
+ int add_remove,
+ const struct sockaddr *addr,
+ socklen_t addrlen)
{
- GNUNET_assert (cls != NULL);
struct HTTP_Server_Plugin *plugin = cls;
LOG (GNUNET_ERROR_TYPE_DEBUG,
server_get_addresses (struct HTTP_Server_Plugin *plugin,
const char *service_name,
const struct GNUNET_CONFIGURATION_Handle *cfg,
- struct sockaddr ***addrs, socklen_t ** addr_lens)
+ struct sockaddr ***addrs,
+ socklen_t ** addr_lens)
{
int disablev6;
unsigned long long port;
if (port > 65535)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _
- ("Require valid port number for service in configuration!\n"));
+ _("Require valid port number for service in configuration!\n"));
return GNUNET_SYSERR;
}
}
}
- if (GNUNET_CONFIGURATION_have_value (cfg, service_name, "BINDTO"))
+ if (GNUNET_CONFIGURATION_have_value (cfg, service_name,
+ "BINDTO"))
{
GNUNET_break (GNUNET_OK ==
GNUNET_CONFIGURATION_get_value_string (cfg, service_name,
else
hostname = NULL;
- if (hostname != NULL)
+ if (NULL != hostname)
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Resolving `%s' since that is where `%s' will bind to.\n",
if (disablev6)
hints.ai_family = AF_INET;
if ((0 != (ret = getaddrinfo (hostname, NULL, &hints, &res))) ||
- (res == NULL))
+ (NULL == res))
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Failed to resolve `%s': %s\n"),
- hostname, gai_strerror (ret));
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Failed to resolve `%s': %s\n"),
+ hostname,
+ gai_strerror (ret));
GNUNET_free (hostname);
return GNUNET_SYSERR;
}
next = pos->ai_next;
if ((disablev6) && (pos->ai_family == AF_INET6))
continue;
- if ((pos->ai_protocol != IPPROTO_TCP) && (pos->ai_protocol != 0))
+ if ((pos->ai_protocol != IPPROTO_TCP) && (0 != pos->ai_protocol))
continue; /* not TCP */
- if ((pos->ai_socktype != SOCK_STREAM) && (pos->ai_socktype != 0))
+ if ((pos->ai_socktype != SOCK_STREAM) && (0 != pos->ai_socktype))
continue; /* huh? */
LOG (GNUNET_ERROR_TYPE_DEBUG,
"Service will bind to `%s'\n",
socklen_t *addrlens;
res = server_get_addresses (plugin,
- plugin->name, plugin->env->cfg,
+ plugin->name,
+ plugin->env->cfg,
&addrs, &addrlens);
LOG (GNUNET_ERROR_TYPE_DEBUG,
_("Found %u addresses to report to NAT service\n"),
}
plugin->nat =
- GNUNET_NAT_register (plugin->env->cfg, GNUNET_YES, plugin->port,
+ GNUNET_NAT_register (plugin->env->cfg,
+ GNUNET_YES,
+ plugin->port,
(unsigned int) res,
(const struct sockaddr **) addrs, addrlens,
&server_nat_port_map_callback, NULL, plugin);
while (res > 0)
{
res--;
- GNUNET_assert (addrs[res] != NULL);
+ GNUNET_assert (NULL != addrs[res]);
GNUNET_free (addrs[res]);
}
GNUNET_free_non_null (addrs);
static void
server_stop_report_addresses (struct HTTP_Server_Plugin *plugin)
{
+ struct HttpAddressWrapper *w;
+
/* Stop NAT handle */
if (NULL != plugin->nat)
+ {
GNUNET_NAT_unregister (plugin->nat);
-
+ plugin->nat = NULL;
+ }
/* Clean up addresses */
- struct HttpAddressWrapper *w;
-
- while (plugin->addr_head != NULL)
+ while (NULL != plugin->addr_head)
{
w = plugin->addr_head;
- GNUNET_CONTAINER_DLL_remove (plugin->addr_head, plugin->addr_tail, w);
+ GNUNET_CONTAINER_DLL_remove (plugin->addr_head,
+ plugin->addr_tail,
+ w);
GNUNET_free (w->address);
GNUNET_free (w);
}
* Check if IPv6 supported on this system
*
* @param plugin the plugin handle
- * @return GNUNET_YES on success, else GNUNET_NO
+ * @return #GNUNET_YES on success, else #GNUNET_NO
*/
static int
server_check_ipv6_support (struct HTTP_Server_Plugin *plugin)
* @param tc task context (unused)
*/
static void
-server_notify_external_hostname (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+server_notify_external_hostname (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct HTTP_Server_Plugin *plugin = cls;
struct HttpAddress *ext_addr;
unsigned int urlen;
char *url;
- plugin->notify_ext_task = GNUNET_SCHEDULER_NO_TASK;
+ plugin->notify_ext_task = NULL;
if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
return;
- GNUNET_asprintf(&url, "%s://%s", plugin->protocol, plugin->external_hostname);
+ GNUNET_asprintf(&url,
+ "%s://%s",
+ plugin->protocol,
+ plugin->external_hostname);
urlen = strlen (url) + 1;
ext_addr = GNUNET_malloc (sizeof (struct HttpAddress) + urlen);
- ext_addr->options = htonl(plugin->options);
+ ext_addr->options = htonl (plugin->options);
ext_addr->urlen = htonl (urlen);
ext_addr_len = sizeof (struct HttpAddress) + urlen;
memcpy (&ext_addr[1], url, urlen);
* Configure the plugin
*
* @param plugin plugin handle
- * @return GNUNET_OK on success, GNUNET_SYSERR on failure
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
*/
static int
server_configure_plugin (struct HTTP_Server_Plugin *plugin)
(plugin->env->cfg, plugin->name, "USE_IPv4"))
{
plugin->use_ipv4 =
- GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
+ GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg,
+ plugin->name,
"USE_IPv4");
}
else
(plugin->env->cfg, plugin->name, "USE_IPv6"))
{
plugin->use_ipv6 =
- GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
+ GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg,
+ plugin->name,
"USE_IPv6");
}
else
/* Reading port number from config file */
if ((GNUNET_OK !=
- GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg, plugin->name,
+ GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg,
+ plugin->name,
"PORT", &port)) || (port > 65535))
{
LOG (GNUNET_ERROR_TYPE_ERROR,
if ((plugin->use_ipv6 == GNUNET_YES) &&
(GNUNET_YES ==
- GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg, plugin->name,
+ GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg,
+ plugin->name,
"BINDTO6", &bind6_address)))
{
LOG (GNUNET_ERROR_TYPE_DEBUG,
plugin->verify_external_hostname = GNUNET_NO;
#if BUILD_HTTPS
- plugin->verify_external_hostname = GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
+ plugin->verify_external_hostname = GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg,
+ plugin->name,
"VERIFY_EXTERNAL_HOSTNAME");
if (GNUNET_SYSERR == plugin->verify_external_hostname)
plugin->verify_external_hostname = GNUNET_NO;
if (GNUNET_YES == plugin->verify_external_hostname)
plugin->options |= HTTP_OPTIONS_VERIFY_CERTIFICATE;
#endif
- external_hostname_use_port = GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
+ external_hostname_use_port = GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg,
+ plugin->name,
"EXTERNAL_HOSTNAME_USE_PORT");
if (GNUNET_SYSERR == external_hostname_use_port)
external_hostname_use_port = GNUNET_NO;
- if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg, plugin->name,
- "EXTERNAL_HOSTNAME", &eh_tmp))
+ if (GNUNET_YES ==
+ GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg,
+ plugin->name,
+ "EXTERNAL_HOSTNAME",
+ &eh_tmp))
{
- char * tmp = NULL;
- char * pos = NULL;
- char * pos_url = NULL;
+ char *tmp;
+ char *pos = NULL;
+ char *pos_url = NULL;
- if (NULL != strstr(eh_tmp, "://"))
- {
- tmp = &strstr(eh_tmp, "://")[3];
- }
- else
- tmp = eh_tmp;
+ if (NULL != strstr(eh_tmp, "://"))
+ tmp = &strstr(eh_tmp, "://")[3];
+ else
+ tmp = eh_tmp;
- if (GNUNET_YES == external_hostname_use_port)
+ if (GNUNET_YES == external_hostname_use_port)
+ {
+ if ( (strlen (tmp) > 1) && (NULL != (pos = strchr(tmp, '/'))) )
{
- if ( (strlen (tmp) > 1) && (NULL != (pos = strchr(tmp, '/'))) )
- {
- pos_url = pos + 1;
- pos[0] = '\0';
- GNUNET_asprintf (&plugin->external_hostname, "%s:%u/%s", tmp, (uint16_t) port, (NULL == pos_url) ? "" : pos_url);
- }
- else
- GNUNET_asprintf (&plugin->external_hostname, "%s:%u", tmp, (uint16_t) port);
+ pos_url = pos + 1;
+ pos[0] = '\0';
+ GNUNET_asprintf (&plugin->external_hostname,
+ "%s:%u/%s",
+ tmp,
+ (uint16_t) port,
+ (NULL == pos_url) ? "" : pos_url);
}
else
- plugin->external_hostname = GNUNET_strdup (tmp);
- GNUNET_free (eh_tmp);
-
- LOG (GNUNET_ERROR_TYPE_INFO,
- _("Using external hostname `%s'\n"),
- plugin->external_hostname);
- plugin->notify_ext_task = GNUNET_SCHEDULER_add_now (&server_notify_external_hostname, plugin);
+ GNUNET_asprintf (&plugin->external_hostname,
+ "%s:%u",
+ tmp,
+ (uint16_t) port);
+ }
+ else
+ plugin->external_hostname = GNUNET_strdup (tmp);
+ GNUNET_free (eh_tmp);
- /* Use only configured external hostname */
- if (GNUNET_CONFIGURATION_have_value
- (plugin->env->cfg, plugin->name, "EXTERNAL_HOSTNAME_ONLY"))
- {
- plugin->external_only =
- GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg, plugin->name,
- "EXTERNAL_HOSTNAME_ONLY");
- }
- else
- plugin->external_only = GNUNET_NO;
+ LOG (GNUNET_ERROR_TYPE_INFO,
+ _("Using external hostname `%s'\n"),
+ plugin->external_hostname);
+ plugin->notify_ext_task = GNUNET_SCHEDULER_add_now (&server_notify_external_hostname,
+ plugin);
+
+ /* Use only configured external hostname */
+ if (GNUNET_CONFIGURATION_have_value
+ (plugin->env->cfg,
+ plugin->name,
+ "EXTERNAL_HOSTNAME_ONLY"))
+ {
+ plugin->external_only =
+ GNUNET_CONFIGURATION_get_value_yesno (plugin->env->cfg,
+ plugin->name,
+ "EXTERNAL_HOSTNAME_ONLY");
+ }
+ else
+ plugin->external_only = GNUNET_NO;
- if (GNUNET_YES == plugin->external_only)
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- _("Notifying transport only about hostname `%s'\n"),
- plugin->external_hostname);
+ if (GNUNET_YES == plugin->external_only)
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ _("Notifying transport only about hostname `%s'\n"),
+ plugin->external_hostname);
}
else
LOG (GNUNET_ERROR_TYPE_DEBUG,
"No external hostname configured\n");
/* Optional parameters */
- if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (plugin->env->cfg,
- plugin->name,
- "MAX_CONNECTIONS", &max_connections))
+ 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;
-
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- _("Maximum number of connections is %u\n"),
- plugin->max_connections);
+ plugin->max_request = max_connections;
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ _("Maximum number of connections is %u\n"),
+ plugin->max_request);
plugin->peer_id_length = strlen (GNUNET_i2s_full (plugin->env->my_identity));
}
-/**
- * Session was idle, so disconnect it
- *
- * @param cls the session
- * @param tc task context
- */
-static void
-server_session_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct Session *s = cls;
-
- s->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_log (TIMEOUT_LOG,
- "Session %p was idle for %s, disconnecting\n",
- s,
- GNUNET_STRINGS_relative_time_to_string (HTTP_SERVER_SESSION_TIMEOUT,
- GNUNET_YES));
-
- /* call session destroy function */
- GNUNET_assert (GNUNET_OK ==
- http_server_plugin_disconnect_session (s->plugin, s));
-}
-
-
-/**
-* Start session timeout for session s
-*
-* @param s the session
-*/
-static void
-server_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 (HTTP_SERVER_SESSION_TIMEOUT,
- &server_session_timeout,
- s);
- GNUNET_log (TIMEOUT_LOG,
- "Timeout for session %p set to %s\n",
- s,
- GNUNET_STRINGS_relative_time_to_string (HTTP_SERVER_SESSION_TIMEOUT,
- GNUNET_YES));
-}
-
-
-/**
-* Increment session timeout due to activity session s
-*
-* @param s the session
-*/
-static void
-server_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 (HTTP_SERVER_SESSION_TIMEOUT,
- &server_session_timeout,
- s);
- GNUNET_log (TIMEOUT_LOG,
- "Timeout rescheduled for session %p set to %s\n",
- s,
- GNUNET_STRINGS_relative_time_to_string (HTTP_SERVER_SESSION_TIMEOUT,
- GNUNET_YES));
-}
-
-
/**
* Exit point from the plugin.
*
{
struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
struct HTTP_Server_Plugin *plugin = api->cls;
- struct Session *pos;
- struct Session *next;
if (NULL == api->cls)
{
return NULL;
}
plugin->in_shutdown = GNUNET_YES;
- LOG (GNUNET_ERROR_TYPE_DEBUG,
+ LOG (GNUNET_ERROR_TYPE_INFO,
_("Shutting down plugin `%s'\n"),
plugin->name);
- if (GNUNET_SCHEDULER_NO_TASK != plugin->notify_ext_task)
+ if (NULL != plugin->notify_ext_task)
{
GNUNET_SCHEDULER_cancel (plugin->notify_ext_task);
- plugin->notify_ext_task = GNUNET_SCHEDULER_NO_TASK;
+ plugin->notify_ext_task = NULL;
}
if (NULL != plugin->ext_addr)
/* Stop to report addresses to transport service */
server_stop_report_addresses (plugin);
- server_stop (plugin);
- next = plugin->head;
- while (NULL != (pos = next))
+ if (NULL != plugin->server_v4)
{
- next = pos->next;
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Removing left over session %p\n",
- pos);
-
- if ((GNUNET_YES == pos->session_passed) && (GNUNET_NO == pos->session_ended))
- {
- /* Notify transport immediately that this session is invalid */
- pos->session_ended = GNUNET_YES;
- plugin->env->session_end (plugin->env->cls, pos->address, pos);
- }
- server_delete_session (plugin, pos);
+ MHD_stop_daemon (plugin->server_v4);
+ plugin->server_v4 = NULL;
+ }
+ if (NULL != plugin->server_v6)
+ {
+ MHD_stop_daemon (plugin->server_v6);
+ plugin->server_v6 = NULL;
+ }
+ if (NULL != plugin->server_v4_task)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
+ plugin->server_v4_task = NULL;
}
+ if (NULL != plugin->server_v6_task)
+ {
+ GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
+ plugin->server_v6_task = NULL;
+ }
+#if BUILD_HTTPS
+ GNUNET_free_non_null (plugin->crypto_init);
+ GNUNET_free_non_null (plugin->cert);
+ GNUNET_free_non_null (plugin->key);
+#endif
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->sessions,
+ &destroy_session_shutdown_cb,
+ plugin);
+ GNUNET_CONTAINER_multipeermap_destroy (plugin->sessions);
+ plugin->sessions = NULL;
/* Clean up */
GNUNET_free_non_null (plugin->external_hostname);
GNUNET_free_non_null (plugin->ext_addr);
GNUNET_free_non_null (plugin->server_addr_v4);
GNUNET_free_non_null (plugin->server_addr_v6);
- regfree(&plugin->url_regex);
+ regfree (&plugin->url_regex);
LOG (GNUNET_ERROR_TYPE_DEBUG,
_("Shutdown for plugin `%s' complete\n"),
/**
- * Function called by the pretty printer for the resolved address for
- * each human-readable address obtained. The callback can be called
- * several times. The last invocation must be with a @a address of
- * NULL and a @a res of #GNUNET_OK. Thus, to indicate conversion
- * errors, the callback might be called first with @a address NULL and
- * @a res being #GNUNET_SYSERR. In that case, there must still be a
- * subsequent call later with @a address NULL and @a res #GNUNET_OK.
+ * 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.
*
- * @param cls closure
- * @param address one of the names for the host, NULL on last callback
- * @param res #GNUNET_OK if conversion was successful, #GNUNET_SYSERR on failure,
- * #GNUNET_OK on last callback
+ * @param cls unused
+ * @param addr binary address
+ * @param addrlen length of the address
+ * @return string representing the same address
*/
static const char *
http_server_plugin_address_to_string (void *cls,
const void *addr,
size_t addrlen)
{
- return http_common_plugin_address_to_string (PLUGIN_NAME, addr, addrlen);
+ return http_common_plugin_address_to_string (PLUGIN_NAME,
+ addr,
+ addrlen);
}
*
* @param cls closure ('struct HTTP_Server_Plugin*')
* @param session the session
- * @return the network type in HBO or GNUNET_SYSERR
+ * @return the network type in HBO or #GNUNET_SYSERR
*/
static enum GNUNET_ATS_Network_Type
-http_server_get_network (void *cls,
- struct Session *session)
+http_server_plugin_get_network (void *cls,
+ struct Session *session)
+{
+ return session->scope;
+}
+
+
+/**
+ * Function that will be called whenever the transport service wants to
+ * notify the plugin that the inbound quota changed and that the plugin
+ * should update it's delay for the next receive value
+ *
+ * @param cls closure
+ * @param peer which peer was the session for
+ * @param session which session is being updated
+ * @param delay new delay to use for receiving
+ */
+static void
+http_server_plugin_update_inbound_delay (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ struct Session *session,
+ struct GNUNET_TIME_Relative delay)
+{
+ session->next_receive = GNUNET_TIME_relative_to_absolute (delay);
+ LOG (GNUNET_ERROR_TYPE_DEBUG,
+ "New inbound delay %s\n",
+ GNUNET_STRINGS_relative_time_to_string (delay,
+ GNUNET_NO));
+ if (NULL != session->recv_wakeup_task)
+ {
+ GNUNET_SCHEDULER_cancel (session->recv_wakeup_task);
+ session->recv_wakeup_task
+ = GNUNET_SCHEDULER_add_delayed (delay,
+ &server_wake_up,
+ session);
+ }
+}
+
+
+/**
+ * Return information about the given session to the
+ * monitor callback.
+ *
+ * @param cls the `struct Plugin` with the monitor callback (`sic`)
+ * @param peer peer we send information about
+ * @param value our `struct Session` to send information about
+ * @return #GNUNET_OK (continue to iterate)
+ */
+static int
+send_session_info_iter (void *cls,
+ const struct GNUNET_PeerIdentity *peer,
+ void *value)
+{
+ struct HTTP_Server_Plugin *plugin = cls;
+ struct Session *session = value;
+
+ notify_session_monitor (plugin,
+ session,
+ GNUNET_TRANSPORT_SS_INIT);
+ return GNUNET_OK;
+}
+
+
+/**
+ * Begin monitoring sessions of a plugin. There can only
+ * be one active monitor per plugin (i.e. if there are
+ * multiple monitors, the transport service needs to
+ * multiplex the generated events over all of them).
+ *
+ * @param cls closure of the plugin
+ * @param sic callback to invoke, NULL to disable monitor;
+ * plugin will being by iterating over all active
+ * sessions immediately and then enter monitor mode
+ * @param sic_cls closure for @a sic
+ */
+static void
+http_server_plugin_setup_monitor (void *cls,
+ GNUNET_TRANSPORT_SessionInfoCallback sic,
+ void *sic_cls)
{
- GNUNET_assert (NULL != session);
- return ntohl (session->ats_address_network_type);
+ struct HTTP_Server_Plugin *plugin = cls;
+
+ plugin->sic = sic;
+ plugin->sic_cls = sic_cls;
+ if (NULL != sic)
+ {
+ GNUNET_CONTAINER_multipeermap_iterate (plugin->sessions,
+ &send_session_info_iter,
+ plugin);
+ /* signal end of first iteration */
+ sic (sic_cls, NULL, NULL);
+ }
}
}
plugin = GNUNET_new (struct HTTP_Server_Plugin);
plugin->env = env;
+ plugin->sessions = GNUNET_CONTAINER_multipeermap_create (128,
+ GNUNET_YES);
+
api = GNUNET_new (struct GNUNET_TRANSPORT_PluginFunctions);
api->cls = plugin;
api->send = &http_server_plugin_send;
api->address_to_string = &http_server_plugin_address_to_string;
api->string_to_address = &http_common_plugin_string_to_address;
api->address_pretty_printer = &http_common_plugin_address_pretty_printer;
- api->get_network = &http_server_get_network;
+ api->get_network = &http_server_plugin_get_network;
api->update_session_timeout = &http_server_plugin_update_session_timeout;
+ api->update_inbound_delay = &http_server_plugin_update_inbound_delay;
+ api->setup_monitor = &http_server_plugin_setup_monitor;
#if BUILD_HTTPS
plugin->name = "transport-https_server";
plugin->protocol = "https";
plugin->protocol = "http";
#endif
+ if (GNUNET_YES ==
+ GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
+ plugin->name,
+ "TCP_STEALTH"))
+ {
+#ifdef TCP_STEALTH
+ plugin->options |= HTTP_OPTIONS_TCP_STEALTH;
+#else
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("TCP_STEALTH not supported on this platform.\n"));
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
+ return NULL;
+#endif
+ }
+
/* Compile URL regex */
- if (regcomp(&plugin->url_regex, URL_REGEX, REG_EXTENDED))
+ if (regcomp(&plugin->url_regex,
+ URL_REGEX,
+ REG_EXTENDED))
{
LOG (GNUNET_ERROR_TYPE_ERROR,
_("Unable to compile URL regex\n"));