Merge pull request #373 from PurpleI2P/openssl

recent changes

Config.cpp

@@ -113,6 +113,7 @@ namespace config {
       ("log",       value<std::string>()->default_value(""),     "Logs destination: stdout, file (stdout if not set, file - otherwise, for compatibility)")
       ("logfile",   value<std::string>()->default_value(""),     "Path to logfile (stdout if not set, autodetect if daemon)")
       ("loglevel",  value<std::string>()->default_value("info"), "Set the minimal level of log messages (debug, info, warn, error)")
+      ("datadir",   value<std::string>()->default_value(""),     "Path to storage of i2pd data (RI, keys, peer profiles, ...)")
       ("host",      value<std::string>()->default_value("0.0.0.0"),     "External IP")
       ("port",      value<uint16_t>()->default_value(0),                "Port to listen for incoming connections (default: auto)")
       ("ipv6",      value<bool>()->zero_tokens()->default_value(false), "Enable communication through ipv6")
@@ -223,6 +224,15 @@ namespace config {
 
   void Finalize() {
     notify(m_Options);
-  };
+  }
+
+  bool IsDefault(const char *name) {
+    if (!m_Options.count(name))
+      throw "try to check non-existent option";
+
+    if (m_Options[name].defaulted())
+      return true;
+    return false;
+  }
 } // namespace config
 } // namespace i2p

Config.h

@@ -94,6 +94,13 @@ namespace config {
     notify(m_Options);
     return true;
   }
+
+  /**
+   * @brief  Check is value explicitly given or default
+   * @param  name  Name of checked parameter
+   * @return true if value set to default, false othervise
+   */
+  bool IsDefault(const char *name);
 }
 }
 

Daemon.cpp

@@ -83,14 +83,14 @@ namespace i2p
 			LogPrint(eLogDebug, "FS: data directory: ", datadir);
 
 			uint16_t port; i2p::config::GetOption("port", port);
-			if (port)
+			if (!i2p::config::IsDefault("port"))
 			{	
 				LogPrint(eLogInfo, "Daemon: accepting incoming connections at port ", port);
 				i2p::context.UpdatePort (port);
 			}	
 
 			std::string host; i2p::config::GetOption("host", host);
-			if (host != "0.0.0.0")
+			if (!i2p::config::IsDefault("host"))
 			{
 				LogPrint(eLogInfo, "Daemon: setting address for incoming connections to ", host);
 				i2p::context.UpdateAddress (boost::asio::ip::address::from_string (host));	
@@ -125,7 +125,10 @@ namespace i2p
 				i2p::context.SetExtraBandwidth ();
 			} 
 			else
+			{
+				LogPrint(eLogInfo, "Daemon: bandwidth set to 'low'");
 				i2p::context.SetLowBandwidth ();
+			}
 
 			return true;
 		}

Datagram.cpp

@@ -66,7 +66,7 @@ namespace datagram
 			msgs.push_back (i2p::tunnel::TunnelMessageBlock 
 				{ 
 					i2p::tunnel::eDeliveryTypeTunnel,
-					leases[i].tunnelGateway, leases[i].tunnelID,
+					leases[i]->tunnelGateway, leases[i]->tunnelID,
 					garlic
 				});
 			outboundTunnel->SendTunnelDataMsg (msgs);

Destination.cpp

@@ -303,7 +303,7 @@ namespace client
 				}
 				else
 				{
-					LogPrint (eLogError, "New remote LeaseSet verification failed");
+					LogPrint (eLogError, "New remote LeaseSet failed");
 					leaseSet = nullptr;
 				}
 			}	
@@ -678,7 +678,7 @@ namespace client
 		auto ts = i2p::util::GetMillisecondsSinceEpoch ();
 		for (auto it = m_RemoteLeaseSets.begin (); it != m_RemoteLeaseSets.end ();)
 		{
-			if (ts > it->second->GetExpirationTime ()) // leaseset expired
+			if (it->second->IsEmpty () || ts > it->second->GetExpirationTime ()) // leaseset expired
 			{
 				LogPrint (eLogWarning, "Destination: Remote LeaseSet ", it->second->GetIdentHash ().ToBase64 (), " expired");
 				it = m_RemoteLeaseSets.erase (it);

I2NPProtocol.cpp

@@ -265,9 +265,9 @@ namespace i2p
 			auto leases = leaseSet->GetNonExpiredLeases ();
 			if (leases.size () > 0)
 			{
-				htobe32buf (payload + size, leases[0].tunnelID);
+				htobe32buf (payload + size, leases[0]->tunnelID);
 				size += 4; // reply tunnelID
-				memcpy (payload + size, leases[0].tunnelGateway, 32);
+				memcpy (payload + size, leases[0]->tunnelGateway, 32);
 				size += 32; // reply tunnel gateway
 			}
 			else

LeaseSet.cpp

@@ -69,7 +69,6 @@ namespace data
 
 	void LeaseSet::Update (const uint8_t * buf, size_t len)
 	{	
-		m_Leases.clear ();
 		if (len > m_BufferLen)
 		{
 			auto oldBuffer = m_Buffer;
@@ -84,7 +83,6 @@ namespace data
 	void LeaseSet::PopulateLeases ()
 	{
 		m_StoreLeases = true;
-		m_Leases.clear ();
 		ReadFromBuffer (false);
 	}	
 		
@@ -112,8 +110,16 @@ namespace data
 			return;
 		}	
 
+		// reset existing leases	
+		if (m_StoreLeases)
+			for (auto it: m_Leases)
+				it->isUpdated = false;		
+		else	
+			m_Leases.clear ();
+
 		// process leases
 		m_ExpirationTime = 0;
+		auto ts = i2p::util::GetMillisecondsSinceEpoch ();
 		const uint8_t * leases = m_Buffer + size;
 		for (int i = 0; i < num; i++)
 		{
@@ -124,21 +130,48 @@ namespace data
 			leases += 4; // tunnel ID
 			lease.endDate = bufbe64toh (leases); 
 			leases += 8; // end date
-			if (lease.endDate > m_ExpirationTime)
-				m_ExpirationTime = lease.endDate;
-			if (m_StoreLeases)
+			if (ts < lease.endDate)
 			{	
-				m_Leases.push_back (lease);
-				// check if lease's gateway is in our netDb
-				if (!netdb.FindRouter (lease.tunnelGateway))
-				{
-					// if not found request it
-					LogPrint (eLogInfo, "LeaseSet: Lease's tunnel gateway not found, requesting");
-					netdb.RequestDestination (lease.tunnelGateway);
-				}
-			}	
+				if (lease.endDate > m_ExpirationTime)
+					m_ExpirationTime = lease.endDate;
+				if (m_StoreLeases)
+				{	
+					auto ret = m_Leases.insert (std::make_shared<Lease>(lease));
+					if (!ret.second) *(*ret.first) = lease; // update existing
+					(*ret.first)->isUpdated = true;
+					// check if lease's gateway is in our netDb
+					if (!netdb.FindRouter (lease.tunnelGateway))
+					{
+						// if not found request it
+						LogPrint (eLogInfo, "LeaseSet: Lease's tunnel gateway not found, requesting");
+						netdb.RequestDestination (lease.tunnelGateway);
+					}
+				}	
+			}
+			else
+				LogPrint (eLogWarning, "LeaseSet: Lease is expired already ");
 		}	
-		
+		if (!m_ExpirationTime)
+		{
+			LogPrint (eLogWarning, "LeaseSet: all leases are expired. Dropped");
+			m_IsValid = false;
+			return;
+		}	
+		// delete old leases	
+		if (m_StoreLeases)
+		{	
+			for (auto it = m_Leases.begin (); it != m_Leases.end ();)
+			{	
+				if (!(*it)->isUpdated)
+				{
+					(*it)->endDate = 0; // somebody might still hold it
+					m_Leases.erase (it++);
+				}	
+				else
+					it++;
+			}
+		}
+
 		// verify
 		if (!m_Identity->Verify (m_Buffer, leases - m_Buffer, leases))
 		{
@@ -147,13 +180,13 @@ namespace data
 		}
 	}				
 	
-	const std::vector<Lease> LeaseSet::GetNonExpiredLeases (bool withThreshold) const
+	const std::vector<std::shared_ptr<Lease> > LeaseSet::GetNonExpiredLeases (bool withThreshold) const
 	{
 		auto ts = i2p::util::GetMillisecondsSinceEpoch ();
-		std::vector<Lease> leases;
-		for (auto& it: m_Leases)
+		std::vector<std::shared_ptr<Lease> > leases;
+		for (auto it: m_Leases)
 		{
-			auto endDate = it.endDate;
+			auto endDate = it->endDate;
 			if (!withThreshold)
 				endDate -= i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD*1000;
 			if (ts < endDate)
@@ -165,13 +198,14 @@ namespace data
 	bool LeaseSet::HasExpiredLeases () const
  	{
 		auto ts = i2p::util::GetMillisecondsSinceEpoch ();
-		for (auto& it: m_Leases)
-			if (ts >= it.endDate) return true;
+		for (auto it: m_Leases)
+			if (ts >= it->endDate) return true;
 		return false;
  	}	
 
 	bool LeaseSet::IsExpired () const
 	{
+		if (IsEmpty ()) return true;
 		auto ts = i2p::util::GetMillisecondsSinceEpoch ();
 		return ts > m_ExpirationTime;
 	}	

LeaseSet.h

@@ -4,6 +4,7 @@
 #include <inttypes.h>
 #include <string.h>
 #include <vector>
+#include <memory>
 #include "Identity.h"
 
 namespace i2p
@@ -20,15 +21,19 @@ namespace data
 	{
 		IdentHash tunnelGateway;
 		uint32_t tunnelID;
-		uint64_t endDate;
+		uint64_t endDate; // 0 means invalid
+		bool isUpdated; // trasient 
+	};	
 
-		bool operator< (const Lease& other) const 
-		{
-			if (endDate != other.endDate)
-				return endDate > other.endDate;
+	struct LeaseCmp
+	{
+		bool operator() (std::shared_ptr<const Lease> l1, std::shared_ptr<const Lease> l2) const
+  		{	
+			if (l1->tunnelID != l2->tunnelID)
+				return l1->tunnelID < l2->tunnelID; 
 			else
-				return tunnelID < other.tunnelID; 
-		}	
+				return l1->tunnelGateway < l2->tunnelGateway; 
+		};
 	};	
 
 	const int MAX_LS_BUFFER_SIZE = 3072;
@@ -41,20 +46,20 @@ namespace data
 			LeaseSet (std::shared_ptr<const i2p::tunnel::TunnelPool> pool);
 			~LeaseSet () { delete[] m_Buffer; };
 			void Update (const uint8_t * buf, size_t len);
-			void PopulateLeases (); /// from buffer
+			void PopulateLeases (); // from buffer
 			std::shared_ptr<const IdentityEx> GetIdentity () const { return m_Identity; };			
 
 			const uint8_t * GetBuffer () const { return m_Buffer; };
 			size_t GetBufferLen () const { return m_BufferLen; };	
 			bool IsValid () const { return m_IsValid; };
-
-			// implements RoutingDestination
-			const IdentHash& GetIdentHash () const { return m_Identity->GetIdentHash (); };
-			const std::vector<Lease>& GetLeases () const { return m_Leases; };
-			const std::vector<Lease> GetNonExpiredLeases (bool withThreshold = true) const;
+			const std::vector<std::shared_ptr<Lease> > GetNonExpiredLeases (bool withThreshold = true) const;
 			bool HasExpiredLeases () const;
 			bool IsExpired () const;
+			bool IsEmpty () const { return m_Leases.empty (); };
 			uint64_t GetExpirationTime () const { return m_ExpirationTime; };
+
+			// implements RoutingDestination
+			const IdentHash& GetIdentHash () const { return m_Identity->GetIdentHash (); };
 			const uint8_t * GetEncryptionPublicKey () const { return m_EncryptionKey; };
 			bool IsDestination () const { return true; };
 
@@ -65,7 +70,7 @@ namespace data
 		private:
 
 			bool m_IsValid, m_StoreLeases; // we don't need to store leases for floodfill
-			std::vector<Lease> m_Leases;
+			std::set<std::shared_ptr<Lease>, LeaseCmp> m_Leases;
 			uint64_t m_ExpirationTime; // in milliseconds
 			std::shared_ptr<const IdentityEx> m_Identity;
 			uint8_t m_EncryptionKey[256];

NTCPSession.cpp

@@ -736,7 +736,7 @@ namespace transport
 	{
 		if (ecode != boost::asio::error::operation_aborted)
 		{	
-			LogPrint (eLogWarning, "NTCP: No activity fo ", NTCP_TERMINATION_TIMEOUT, " seconds");
+			LogPrint (eLogWarning, "NTCP: No activity for ", NTCP_TERMINATION_TIMEOUT, " seconds");
 			//Terminate ();
 			m_Socket.close ();// invoke Terminate () from HandleReceive 
 		}	

RouterContext.cpp

@@ -48,7 +48,7 @@ namespace i2p
 		if (!port)
 			port = rand () % (30777 - 9111) + 9111; // I2P network ports range
 		std::string host; i2p::config::GetOption("host", host);
-		if (host == "0.0.0.0")
+		if (i2p::config::IsDefault("host"))
 			host = "127.0.0.1"; // replace default address with safe value
 		routerInfo.AddSSUAddress  (host.c_str(), port, routerInfo.GetIdentHash ());
 		routerInfo.AddNTCPAddress (host.c_str(), port);

Streaming.cpp

@@ -22,7 +22,6 @@ namespace stream
 	{
 		RAND_bytes ((uint8_t *)&m_RecvStreamID, 4);
 		m_RemoteIdentity = remote->GetIdentity ();
-		m_CurrentRemoteLease.endDate = 0;
 	}	
 
 	Stream::Stream (boost::asio::io_service& service, StreamingDestination& local):
@@ -599,9 +598,9 @@ namespace stream
 		}
 
 		auto ts = i2p::util::GetMillisecondsSinceEpoch ();		
-		if (!m_CurrentRemoteLease.endDate || ts >= m_CurrentRemoteLease.endDate - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD*1000)
+		if (!m_CurrentRemoteLease || ts >= m_CurrentRemoteLease->endDate - i2p::tunnel::TUNNEL_EXPIRATION_THRESHOLD*1000)
 			UpdateCurrentRemoteLease (true);
-		if (ts < m_CurrentRemoteLease.endDate)
+		if (m_CurrentRemoteLease && ts < m_CurrentRemoteLease->endDate)
 		{	
 			std::vector<i2p::tunnel::TunnelMessageBlock> msgs;
 			for (auto it: packets)
@@ -610,7 +609,7 @@ namespace stream
 				msgs.push_back (i2p::tunnel::TunnelMessageBlock 
 					{ 
 						i2p::tunnel::eDeliveryTypeTunnel,
-						m_CurrentRemoteLease.tunnelGateway, m_CurrentRemoteLease.tunnelID,
+						m_CurrentRemoteLease->tunnelGateway, m_CurrentRemoteLease->tunnelID,
 						msg
 					});	
 				m_NumSentBytes += it->GetLength ();
@@ -705,11 +704,11 @@ namespace stream
 
 	void Stream::UpdateCurrentRemoteLease (bool expired)
 	{
-		if (!m_RemoteLeaseSet)
+		if (!m_RemoteLeaseSet || m_RemoteLeaseSet->IsExpired ()) 
 		{
 			m_RemoteLeaseSet = m_LocalDestination.GetOwner ()->FindLeaseSet (m_RemoteIdentity->GetIdentHash ());
-			if (!m_RemoteLeaseSet)		
-				LogPrint (eLogError, "Streaming: LeaseSet ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), " not found");
+			if (!m_RemoteLeaseSet)	
+				LogPrint (eLogWarning, "Streaming: LeaseSet ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), " not found");
 		}
 		if (m_RemoteLeaseSet)
 		{
@@ -725,10 +724,10 @@ namespace stream
 			if (!leases.empty ())
 			{	
 				bool updated = false;	
-				if (expired)
+				if (expired && m_CurrentRemoteLease)
 				{
 					for (auto it: leases)
-						if ((it.tunnelGateway == m_CurrentRemoteLease.tunnelGateway) && (it.tunnelID != m_CurrentRemoteLease.tunnelID))
+						if ((it->tunnelGateway == m_CurrentRemoteLease->tunnelGateway) && (it->tunnelID != m_CurrentRemoteLease->tunnelID))
 						{
 							m_CurrentRemoteLease = it;
 							updated = true;
@@ -738,7 +737,7 @@ namespace stream
 				if (!updated)
 				{
 					uint32_t i = rand () % leases.size ();
-					if (m_CurrentRemoteLease.endDate && leases[i].tunnelID == m_CurrentRemoteLease.tunnelID)
+					if (m_CurrentRemoteLease && leases[i]->tunnelID == m_CurrentRemoteLease->tunnelID)
 						// make sure we don't select previous 	
 						i = (i + 1) % leases.size (); // if so, pick next
 					m_CurrentRemoteLease = leases[i];		
@@ -747,12 +746,12 @@ namespace stream
 			else
 			{	
 				m_RemoteLeaseSet = nullptr;
-				m_CurrentRemoteLease.endDate = 0;
+				m_CurrentRemoteLease = nullptr;
 				// re-request expired
 			}	
 		}
 		else
-			m_CurrentRemoteLease.endDate = 0;
+			m_CurrentRemoteLease = nullptr;
 	}	
 
 	std::shared_ptr<I2NPMessage> Stream::CreateDataMessage (const uint8_t * payload, size_t len)
@@ -879,7 +878,7 @@ namespace stream
 					it->second.push_back (packet);
 				else
 				{
-					m_SavedPackets.emplace (receiveStreamID, std::list<Packet *>{ packet });
+					m_SavedPackets[receiveStreamID] = std::list<Packet *>{ packet };
 					auto timer = std::make_shared<boost::asio::deadline_timer> (m_Owner->GetService ());
 					timer->expires_from_now (boost::posix_time::seconds(PENDING_INCOMING_TIMEOUT));
 					auto s = shared_from_this ();

Streaming.h

@@ -172,7 +172,7 @@ namespace stream
 			std::shared_ptr<const i2p::data::IdentityEx> m_RemoteIdentity;
 			std::shared_ptr<const i2p::data::LeaseSet> m_RemoteLeaseSet;
 			std::shared_ptr<i2p::garlic::GarlicRoutingSession> m_RoutingSession;
-			i2p::data::Lease m_CurrentRemoteLease;
+			std::shared_ptr<i2p::data::Lease> m_CurrentRemoteLease;
 			std::shared_ptr<i2p::tunnel::OutboundTunnel> m_CurrentOutboundTunnel;
 			std::queue<Packet *> m_ReceiveQueue;
 			std::set<Packet *, PacketCmp> m_SavedPackets;

Tunnel.cpp

@@ -666,6 +666,10 @@ namespace tunnel
 		{
 			// trying to create one more inbound tunnel		
 			auto router = i2p::data::netdb.GetRandomRouter ();
+			if (!router) {
+				LogPrint (eLogWarning, "Tunnel: can't find any router, skip creating tunnel");
+				return;
+			}
 			LogPrint (eLogDebug, "Tunnel: creating one hop inbound tunnel");
 			CreateTunnel<InboundTunnel> (
 				std::make_shared<TunnelConfig> (std::vector<std::shared_ptr<const i2p::data::IdentityEx> > { router->GetRouterIdentity () })

debian/i2pd.init

@@ -18,6 +18,7 @@ DAEMON_OPTS=""            # Arguments to run the daemon with
 PIDFILE=/var/run/$NAME.pid
 I2PCONF=/etc/$NAME/i2pd.conf
 TUNCONF=/etc/$NAME/tunnels.conf
+LOGFILE=/var/log/$NAME.log
 USER="i2pd"
 
 # Exit if the package is not installed
@@ -43,10 +44,13 @@ do_start()
   touch "$PIDFILE"
   chown -f $USER:adm "$PIDFILE"
 
+  touch "$LOGFILE"
+  chown -f $USER:adm "$LOGFILE"
+
   start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --chuid "$USER" --test > /dev/null \
     || return 1
   start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON --chuid "$USER" -- \
-    --service --daemon --log --conf=$I2PCONF --tunconf=$TUNCONF \
+    --service --daemon --log=file --logfile=$LOGFILE --conf=$I2PCONF --tunconf=$TUNCONF \
     --port=$I2PD_PORT $DAEMON_OPTS > /dev/null 2>&1 \
     || return 2
   return $?

debian/i2pd.upstart

@@ -6,5 +6,6 @@ stop on runlevel [016] or unmounting-filesystem
 # these can be overridden in /etc/init/i2pd.override
 env I2PD_HOST="1.2.3.4"
 env I2PD_PORT="4567"
+env LOGFILE="/var/log/i2pd.log"
 
-exec /usr/sbin/i2pd --daemon --log --host=$I2PD_HOST --port=$I2PD_PORT
+exec /usr/sbin/i2pd --daemon --log=file --logfile=$LOGFILE --service --host=$I2PD_HOST --port=$I2PD_PORT

docs/configuration.md

@@ -12,6 +12,7 @@ Command line options
 * --log=                - Logs destination: stdout, file (stdout if not set, file - otherwise, for compatibility)
 * --logfile=            - Path to logfile (default - autodetect)
 * --loglevel=           - Log messages above this level (debug, *info, warn, error)
+* --datadir=            - Path to storage of i2pd data (RI, keys, peer profiles, ...)
 * --host=               - The external IP
 * --port=               - The port to listen on
 * --daemon              - Router will go to background after start