lt sync 2626

libtorrent/bindings/python/src/torrent_handle.cpp

@@ -4,6 +4,7 @@
 
 #include <libtorrent/torrent_handle.hpp>
 #include <boost/python.hpp>
+#include <boost/python/tuple.hpp>
 #include <boost/lexical_cast.hpp>
 #include "gil.hpp"
 
@@ -170,6 +171,8 @@ void replace_trackers(torrent_handle& info, object trackers)
 
 list get_download_queue(torrent_handle& handle)
 {
+    using boost::python::make_tuple;
+
     list ret;
 
     std::vector<partial_piece_info> downloading;
@@ -193,7 +196,7 @@ list get_download_queue(torrent_handle& handle)
             block_info["num_peers"] = i->blocks[k].num_peers;
             block_info["bytes_progress"] = i->blocks[k].bytes_progress;
             block_info["block_size"] = i->blocks[k].block_size;
-            block_info["peer"] = std::make_pair(
+            block_info["peer"] = make_tuple(
                 boost::lexical_cast<std::string>(i->blocks[k].peer.address()), i->blocks[k].peer.port());
             block_list.append(block_info);
         }

libtorrent/include/libtorrent/alert.hpp

@@ -82,6 +82,7 @@ namespace libtorrent {
 			status_notification = 0x40,
 			progress_notification = 0x80,
 			ip_block_notification = 0x100,
+			performance_warning = 0x200,
 
 			all_categories = 0xffffffff
 		};

libtorrent/include/libtorrent/alert_types.hpp

@@ -151,6 +151,42 @@ namespace libtorrent
 		int index;
 	};
 
+	struct TORRENT_EXPORT performance_alert: torrent_alert
+	{
+		enum performance_warning_t
+		{
+			outstanding_disk_buffer_limit_reached,
+			outstanding_request_limit_reached,
+		};
+
+		performance_alert(torrent_handle const& h
+			, performance_warning_t w)
+			: torrent_alert(h)
+			, warning_code(w)
+		{}
+
+		virtual std::auto_ptr<alert> clone() const
+		{ return std::auto_ptr<alert>(new performance_alert(*this)); }
+
+		virtual char const* what() const { return "performance warning"; }
+		virtual std::string message() const
+		{
+			static char const* warning_str[] =
+			{
+				"max outstanding disk writes reached",
+				"max outstanding piece requests reached",
+			};
+
+			return torrent_alert::message() + ": performance warning: "
+				+ warning_str[warning_code];
+		}
+
+		const static int static_category = alert::performance_warning;
+		virtual int category() const { return static_category; }
+
+		performance_warning_t warning_code;
+	};
+
 	struct TORRENT_EXPORT state_changed_alert: torrent_alert
 	{
 		state_changed_alert(torrent_handle const& h

libtorrent/include/libtorrent/bencode.hpp

@@ -105,12 +105,10 @@ namespace libtorrent
 		template <class OutIt>
 		int write_string(OutIt& out, const std::string& val)
 		{
-			int ret = val.length();
-			std::string::const_iterator end = val.begin() + ret;
 			for (std::string::const_iterator i = val.begin()
-				, end(val.begin() + ret); i != end; ++i)
+				, end(val.end()); i != end; ++i)
 				*out++ = *i;
-			return ret;
+			return val.length();
 		}
 
 		TORRENT_EXPORT char const* integer_to_str(char* buf, int size, entry::integer_type val);

libtorrent/include/libtorrent/pe_crypto.hpp

@@ -58,7 +58,9 @@ namespace libtorrent
 		// m_dh_secret.
 		int compute_secret(const char* remote_pubkey);
 
-		const char* get_secret() const;
+		char const* get_secret() const { return m_dh_secret; }
+
+		sha1_hash const& get_hash_xor_mask() const { return m_xor_mask; }
 		
 	private:
 		int get_local_key_size() const
@@ -71,6 +73,7 @@ namespace libtorrent
 
 		char m_dh_local_key[96];
 		char m_dh_secret[96];
+		sha1_hash m_xor_mask;
 	};
 	
 	class RC4_handler // Non copyable

libtorrent/include/libtorrent/torrent.hpp

@@ -132,6 +132,14 @@ namespace libtorrent
 
 		void parse_resume_data(std::vector<char>* resume_data);
 
+#ifndef TORRENT_DISABLE_ENCRYPTION
+		sha1_hash const& obfuscated_hash() const
+		{ return m_obfuscated_hash; }
+#endif
+
+		sha1_hash const& info_hash() const
+		{ return m_torrent_file->info_hash(); }
+
 		// starts the announce timer
 		void start();
 
@@ -821,6 +829,11 @@ namespace libtorrent
 		// longer be used and will be reset
 		boost::scoped_ptr<std::string> m_name;
 
+#ifndef TORRENT_DISABLE_ENCRYPTION
+		// this is SHA1("req2" + info-hash), used for
+		// encrypted hand shakes
+		sha1_hash m_obfuscated_hash;
+#endif
 		session_settings const& m_settings;
 
 		storage_constructor_type m_storage_constructor;

libtorrent/src/bt_peer_connection.cpp

@@ -1841,7 +1841,8 @@ namespace libtorrent
 					return;
 				}
 
-				cut_receive_buffer(bytes_processed, (std::min)(packet_size(), (512+20) - m_sync_bytes_read));
+				cut_receive_buffer(bytes_processed, (std::min)(packet_size()
+					, (512+20) - m_sync_bytes_read));
 
 				TORRENT_ASSERT(!packet_finished());
 				return;
@@ -1872,51 +1873,32 @@ namespace libtorrent
 
 			recv_buffer = receive_buffer();
 
-			// only calls info_hash() on the torrent_handle's, which
+			aux::session_impl::torrent_map::const_iterator i;
-			// never throws.
-			session_impl::mutex_t::scoped_lock l(m_ses.m_mutex);
 
-			std::vector<torrent_handle> active_torrents = m_ses.get_torrents();
+			for (i = m_ses.m_torrents.begin(); i != m_ses.m_torrents.end(); ++i)
-			std::vector<torrent_handle>::const_iterator i;
-			hasher h;
-			sha1_hash skey_hash, obfs_hash;
-
-			for (i = active_torrents.begin(); i != active_torrents.end(); ++i)
 			{
-				torrent_handle const& t_h = *i; // TODO possible errors
+				torrent const& ti = *i->second;
-				sha1_hash const& info_hash = t_h.info_hash();
+				sha1_hash const& skey_hash = ti.obfuscated_hash();
-				// TODO Does info_hash need to be checked for validity?
+				sha1_hash obfs_hash = m_dh_key_exchange->get_hash_xor_mask();
-				
-				h.reset();
-				h.update("req2", 4);
-				h.update((char*)info_hash.begin(), 20);
-
-			    skey_hash = h.final();
-				
-				h.reset();
-				h.update("req3", 4);
-				h.update(m_dh_key_exchange->get_secret(), dh_key_len);
-
-				obfs_hash = h.final();
 				obfs_hash ^= skey_hash;
 
-				if (std::equal (recv_buffer.begin, recv_buffer.begin + 20,
+				if (std::equal(recv_buffer.begin, recv_buffer.begin + 20,
-					(char*)obfs_hash.begin()))
+					(char*)&obfs_hash[0]))
 				{
 					if (!t)
 					{
-						attach_to_torrent(info_hash);
+						attach_to_torrent(ti.info_hash());
 						if (is_disconnecting()) return;
 
 						t = associated_torrent().lock();
 						TORRENT_ASSERT(t);
 					}
 
-					init_pe_RC4_handler(m_dh_key_exchange->get_secret(), info_hash);
+					init_pe_RC4_handler(m_dh_key_exchange->get_secret(), ti.info_hash());
 #ifdef TORRENT_VERBOSE_LOGGING
 					(*m_logger) << " stream key found, torrent located.\n";
 #endif
-					continue; // TODO Check flow control with multiple torrents
+					break;
 				}
 			}
 

libtorrent/src/identify_client.cpp

@@ -59,6 +59,11 @@ namespace
 		return unsigned(c) - 'A' + 10;
 	}
 
+	bool isprint(char c)
+	{
+		return c >= 32 && c < 127;
+	}
+
 	// takes a peer id and returns a valid boost::optional
 	// object if the peer id matched the azureus style encoding
 	// the returned fingerprint contains information about the
@@ -67,7 +72,7 @@ namespace
 	{
 		fingerprint ret("..", 0, 0, 0, 0);
 
-		if (id[0] != '-' || !std::isprint(id[1]) || (id[2] < '0')
+		if (id[0] != '-' || !isprint(id[1]) || (id[2] < '0')
 			|| (id[3] < '0') || (id[4] < '0')
 			|| (id[5] < '0') || (id[6] < '0')
 			|| id[7] != '-')
@@ -129,7 +134,7 @@ namespace
 		ret.tag_version = 0;
 		if (sscanf(ids, "%c%d-%d-%d--", &ret.name[0], &ret.major_version, &ret.minor_version
 			, &ret.revision_version) != 4
-			|| !std::isprint(ret.name[0]))
+			|| !isprint(ret.name[0]))
 			return boost::optional<fingerprint>();
 
 		return boost::optional<fingerprint>(ret);
@@ -373,7 +378,7 @@ namespace libtorrent
 		std::string unknown("Unknown [");
 		for (peer_id::const_iterator i = p.begin(); i != p.end(); ++i)
 		{
-			unknown += std::isprint(*i)?*i:'.';
+			unknown += isprint(*i)?*i:'.';
 		}
 		unknown += "]";
 		return unknown;

libtorrent/src/kademlia/dht_tracker.cpp

@@ -448,8 +448,7 @@ namespace libtorrent { namespace dht
 			{
 #ifdef TORRENT_DHT_VERBOSE_LOGGING
 				std::string msg(buf, buf + bytes_transferred);
-				TORRENT_LOG(dht_tracker) << "invalid incoming packet: "
+				TORRENT_LOG(dht_tracker) << "invalid incoming packet\n";
-					<< e.what() << "\n" << msg << "\n";
 #endif
 				return;
 			}

libtorrent/src/lazy_bdecode.cpp

@@ -376,7 +376,7 @@ namespace libtorrent
 				for (int i = 0; i < e.string_length(); ++i)
 				{
 					using namespace std;
-					if (isprint(str[i])) continue;
+					if (isprint((unsigned char)str[i])) continue;
 					printable = false;
 					break;
 				}

libtorrent/src/natpmp.cpp

@@ -105,6 +105,9 @@ void natpmp::rebind(address const& listen_interface)
 		return;
 	}
 
+	m_socket.async_receive_from(asio::buffer(&m_response_buffer, 16)
+		, m_remote, bind(&natpmp::on_reply, self(), _1, _2));
+
 	for (std::vector<mapping_t>::iterator i = m_mappings.begin()
 		, end(m_mappings.end()); i != end; ++i)
 	{
@@ -237,8 +240,6 @@ void natpmp::update_mapping(int i)
 		// send out a mapping request
 		m_retry_count = 0;
 		send_map_request(i);
-		m_socket.async_receive_from(asio::buffer(&m_response_buffer, 16)
-			, m_remote, bind(&natpmp::on_reply, self(), _1, _2));
 	}
 }
 
@@ -281,11 +282,12 @@ void natpmp::send_map_request(int i)
 void natpmp::resend_request(int i, error_code const& e)
 {
 	if (e) return;
-	if (m_abort) return;
-
 	mutex_t::scoped_lock l(m_mutex);
 	if (m_currently_mapping != i) return;
-	if (m_retry_count >= 9)
+
+	// if we're shutting down, don't retry, just move on
+	// to the next mapping
+	if (m_retry_count >= 9 || m_abort)
 	{
 		m_currently_mapping = -1;
 		m_mappings[i].action = mapping_t::action_none;
@@ -301,12 +303,26 @@ void natpmp::on_reply(error_code const& e
 	, std::size_t bytes_transferred)
 {
 	using namespace libtorrent::detail;
-	if (e) return;
+	if (e)
+	{
+#if defined(TORRENT_LOGGING) || defined(TORRENT_VERBOSE_LOGGING)
+		m_log << time_now_string()
+			<< " <== on_receive ["
+			" error: " << e.message() << " ]" << std::endl;
+#endif
+		return;
+	}
+
+	m_socket.async_receive_from(asio::buffer(&m_response_buffer, 16)
+		, m_remote, bind(&natpmp::on_reply, self(), _1, _2));
 
 	if (m_remote != m_nat_endpoint)
 	{
-		m_socket.async_receive_from(asio::buffer(&m_response_buffer, 16)
+#if defined(TORRENT_LOGGING) || defined(TORRENT_VERBOSE_LOGGING)
-			, m_remote, bind(&natpmp::on_reply, self(), _1, _2));
+		m_log << time_now_string()
+			<< " <== received packet from the wrong IP ["
+			" ip: " << m_remote << " ]" << std::endl;
+#endif
 		return;
 	}
 

libtorrent/src/pe_crypto.cpp

@@ -38,6 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
 #include <openssl/engine.h>
 
 #include "libtorrent/pe_crypto.hpp"
+#include "libtorrent/hasher.hpp"
 #include "libtorrent/assert.hpp"
 
 namespace libtorrent
@@ -144,12 +145,14 @@ namespace libtorrent
 		}
 		std::copy(dh_secret, dh_secret + secret_size, m_dh_secret + 96 - secret_size);
 		BN_free(bn_remote_pubkey);
-		return 0;
-	}
 
-	char const* dh_key_exchange::get_secret() const
+		// calculate the xor mask for the obfuscated hash
-	{
+		hasher h;
-		return m_dh_secret;
+		h.update("req3", 4);
+		h.update(m_dh_secret, 96);
+		m_xor_mask = h.final();
+
+		return 0;
 	}
 
 } // namespace libtorrent

libtorrent/src/peer_connection.cpp

@@ -1643,6 +1643,13 @@ namespace libtorrent
 		TORRENT_ASSERT(m_channel_state[download_channel] == peer_info::bw_idle);
 		m_download_queue.erase(b);
 
+		if (m_outstanding_writing_bytes >= m_ses.settings().max_outstanding_disk_bytes_per_connection
+			&& t->alerts().should_post<performance_alert>())
+		{
+			t->alerts().post_alert(performance_alert(t->get_handle()
+				, performance_alert::outstanding_disk_buffer_limit_reached));
+		}
+
 		if (!m_download_queue.empty())
 		{
 			m_timeout_extend = (std::max)(m_timeout_extend
@@ -2765,6 +2772,13 @@ namespace libtorrent
 				m_desired_queue_size = m_max_out_request_queue;
 			if (m_desired_queue_size < min_request_queue)
 				m_desired_queue_size = min_request_queue;
+
+			if (m_desired_queue_size == m_max_out_request_queue 
+				&& t->alerts().should_post<performance_alert>())
+			{
+				t->alerts().post_alert(performance_alert(t->get_handle()
+					, performance_alert::outstanding_request_limit_reached));
+			}
 		}
 
 		if (!m_download_queue.empty()
@@ -3632,6 +3646,9 @@ namespace libtorrent
 			TORRENT_ASSERT(m_ses.has_peer((peer_connection*)this));
 		}
 
+/*
+		// this assertion correct most of the time, but sometimes right when the
+		// limit is changed it might break
 		for (int i = 0; i < 2; ++i)
 		{
 			// this peer is in the bandwidth history iff max_assignable < limit
@@ -3639,6 +3656,7 @@ namespace libtorrent
 				== m_ses.m_bandwidth_manager[i]->is_in_history(this)
 				|| m_bandwidth_limit[i].throttle() == bandwidth_limit::inf);
 		}
+*/
 
 		if (m_channel_state[download_channel] == peer_info::bw_torrent
 			|| m_channel_state[download_channel] == peer_info::bw_global)

libtorrent/src/storage.cpp

@@ -528,7 +528,7 @@ namespace libtorrent
 #endif
 			// don't allocate files with priority 0
 			int file_index = file_iter - files().begin();
-			if (allocate_files && (m_file_priority.size() <= file_index
+			if (allocate_files && (int(m_file_priority.size()) <= file_index
 				|| m_file_priority[file_index] > 0))
 			{
 				error_code ec;
@@ -2169,6 +2169,7 @@ namespace libtorrent
 			int skip_blocks = static_cast<int>(
 				(file_offset - current_offset + m_files.piece_length() - 1)
 				/ m_files.piece_length());
+			TORRENT_ASSERT(skip_blocks >= 1);
 
 			if (m_storage_mode == storage_mode_compact)
 			{

libtorrent/src/torrent.cpp

@@ -206,6 +206,13 @@ namespace libtorrent
 		, m_complete_sent(false)
 	{
 		parse_resume_data(resume_data);
+
+#ifndef TORRENT_DISABLE_ENCRYPTION
+		hasher h;
+		h.update("req2", 4);
+		h.update((char*)&tf->info_hash()[0], 20);
+		m_obfuscated_hash = h.final();
+#endif
 	}
 
 	torrent::torrent(
@@ -280,6 +287,14 @@ namespace libtorrent
 		, m_complete_sent(false)
 	{
 		parse_resume_data(resume_data);
+
+#ifndef TORRENT_DISABLE_ENCRYPTION
+		hasher h;
+		h.update("req2", 4);
+		h.update((char*)&info_hash[0], 20);
+		m_obfuscated_hash = h.final();
+#endif
+
 #ifndef NDEBUG
 		m_files_checked = false;
 #endif
@@ -1471,7 +1486,7 @@ namespace libtorrent
 				// ban it.
 				if (m_ses.m_alerts.should_post<peer_ban_alert>())
 				{
-					peer_id pid;
+					peer_id pid(0);
 					if (p->connection) pid = p->connection->pid();
 					m_ses.m_alerts.post_alert(peer_ban_alert(
 						get_handle(), p->ip(), pid));
@@ -2261,6 +2276,7 @@ namespace libtorrent
 		if (!s) return;
 	
 		bool ret = instantiate_connection(m_ses.m_io_service, m_ses.web_seed_proxy(), *s);
+		(void)ret;
 		TORRENT_ASSERT(ret);
 
 		if (m_ses.web_seed_proxy().type == proxy_settings::http
@@ -2775,6 +2791,7 @@ namespace libtorrent
 		boost::shared_ptr<socket_type> s(new socket_type(m_ses.m_io_service));
 
 		bool ret = instantiate_connection(m_ses.m_io_service, m_ses.peer_proxy(), *s);
+		(void)ret;
 		TORRENT_ASSERT(ret);
 		std::pair<int, int> const& out_ports = m_ses.settings().outgoing_ports;
 		error_code ec;
@@ -3523,14 +3540,11 @@ namespace libtorrent
 
 	void torrent::set_sequential_download(bool sd)
 	{
+		m_sequential_download = sd;
 		if (has_picker())
 		{
 			picker().sequential_download(sd);
 		}
-		else
-		{
-			m_sequential_download = sd;
-		}
 	}
 
 	void torrent::set_queue_position(int p)

libtorrent/src/torrent_handle.cpp

@@ -250,7 +250,7 @@ namespace libtorrent
 	bool torrent_handle::is_paused() const
 	{
 		INVARIANT_CHECK;
-		TORRENT_FORWARD_RETURN(is_paused(), false);
+		TORRENT_FORWARD_RETURN(is_torrent_paused(), false);
 	}
 
 	void torrent_handle::pause() const