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Merge pull request #1701
8277e67f Add anchor connections (Miguel Herranz)This commit is contained in:
Riccardo Spagni
commit
ed09652a17
@ -109,6 +109,7 @@
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#define P2P_DEFAULT_INVOKE_TIMEOUT 60*2*1000 //2 minutes
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#define P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT 5000 //5 seconds
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#define P2P_DEFAULT_WHITELIST_CONNECTIONS_PERCENT 70
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#define P2P_DEFAULT_ANCHOR_CONNECTIONS_COUNT 2
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#define P2P_FAILED_ADDR_FORGET_SECONDS (60*60) //1 hour
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#define P2P_IP_BLOCKTIME (60*60*24) //24 hour
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@ -155,6 +155,8 @@ namespace nodetool
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CHAIN_INVOKE_MAP_TO_OBJ_FORCE_CONTEXT(m_payload_handler, typename t_payload_net_handler::connection_context&)
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END_INVOKE_MAP2()
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enum PeerType { anchor = 0, white, gray };
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//----------------- commands handlers ----------------------------------------------
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int handle_handshake(int command, typename COMMAND_HANDSHAKE::request& arg, typename COMMAND_HANDSHAKE::response& rsp, p2p_connection_context& context);
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int handle_timed_sync(int command, typename COMMAND_TIMED_SYNC::request& arg, typename COMMAND_TIMED_SYNC::response& rsp, p2p_connection_context& context);
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@ -205,15 +207,17 @@ namespace nodetool
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bool do_handshake_with_peer(peerid_type& pi, p2p_connection_context& context, bool just_take_peerlist = false);
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bool do_peer_timed_sync(const epee::net_utils::connection_context_base& context, peerid_type peer_id);
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bool make_new_connection_from_anchor_peerlist(const std::vector<anchor_peerlist_entry>& anchor_peerlist);
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bool make_new_connection_from_peerlist(bool use_white_list);
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bool try_to_connect_and_handshake_with_new_peer(const net_address& na, bool just_take_peerlist = false, uint64_t last_seen_stamp = 0, bool white = true);
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bool try_to_connect_and_handshake_with_new_peer(const net_address& na, bool just_take_peerlist = false, uint64_t last_seen_stamp = 0, PeerType peer_type = white, uint64_t first_seen_stamp = 0);
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size_t get_random_index_with_fixed_probability(size_t max_index);
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bool is_peer_used(const peerlist_entry& peer);
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bool is_peer_used(const anchor_peerlist_entry& peer);
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bool is_addr_connected(const net_address& peer);
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template<class t_callback>
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bool try_ping(basic_node_data& node_data, p2p_connection_context& context, t_callback cb);
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bool try_get_support_flags(const p2p_connection_context& context, std::function<void(p2p_connection_context&, const uint32_t&)> f);
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bool make_expected_connections_count(bool white_list, size_t expected_connections);
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bool make_expected_connections_count(PeerType peer_type, size_t expected_connections);
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void cache_connect_fail_info(const net_address& addr);
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bool is_addr_recently_failed(const net_address& addr);
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bool is_priority_node(const net_address& na);
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@ -874,6 +874,30 @@ namespace nodetool
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}
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//-----------------------------------------------------------------------------------
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template<class t_payload_net_handler>
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bool node_server<t_payload_net_handler>::is_peer_used(const anchor_peerlist_entry& peer)
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{
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if(m_config.m_peer_id == peer.id) {
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return true;//dont make connections to ourself
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}
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bool used = false;
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m_net_server.get_config_object().foreach_connection([&](const p2p_connection_context& cntxt)
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{
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if(cntxt.peer_id == peer.id || (!cntxt.m_is_income && peer.adr.ip == cntxt.m_remote_ip && peer.adr.port == cntxt.m_remote_port))
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{
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used = true;
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return false;//stop enumerating
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}
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return true;
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});
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return used;
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}
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//-----------------------------------------------------------------------------------
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template<class t_payload_net_handler>
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bool node_server<t_payload_net_handler>::is_addr_connected(const net_address& peer)
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{
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bool connected = false;
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@ -900,7 +924,7 @@ namespace nodetool
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} while(0)
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template<class t_payload_net_handler>
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bool node_server<t_payload_net_handler>::try_to_connect_and_handshake_with_new_peer(const net_address& na, bool just_take_peerlist, uint64_t last_seen_stamp, bool white)
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bool node_server<t_payload_net_handler>::try_to_connect_and_handshake_with_new_peer(const net_address& na, bool just_take_peerlist, uint64_t last_seen_stamp, PeerType peer_type, uint64_t first_seen_stamp)
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{
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if (m_current_number_of_out_peers == m_config.m_net_config.connections_count) // out peers limit
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{
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@ -913,7 +937,7 @@ namespace nodetool
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return false;
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}
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MDEBUG("Connecting to " << epee::string_tools::get_ip_string_from_int32(na.ip) << ":"
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<< epee::string_tools::num_to_string_fast(na.port) << "(white=" << white << ", last_seen: "
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<< epee::string_tools::num_to_string_fast(na.port) << "(peer_type=" << peer_type << ", last_seen: "
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<< (last_seen_stamp ? epee::misc_utils::get_time_interval_string(time(NULL) - last_seen_stamp):"never")
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<< ")...");
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@ -963,6 +987,13 @@ namespace nodetool
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m_peerlist.append_with_peer_white(pe_local);
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//update last seen and push it to peerlist manager
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anchor_peerlist_entry ape = AUTO_VAL_INIT(ape);
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ape.adr = na;
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ape.id = pi;
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ape.first_seen = first_seen_stamp ? first_seen_stamp : time(nullptr);
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m_peerlist.append_with_peer_anchor(ape);
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LOG_DEBUG_CC(con, "CONNECTION HANDSHAKED OK.");
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return true;
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}
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@ -1029,6 +1060,41 @@ namespace nodetool
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}
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//-----------------------------------------------------------------------------------
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template<class t_payload_net_handler>
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bool node_server<t_payload_net_handler>::make_new_connection_from_anchor_peerlist(const std::vector<anchor_peerlist_entry>& anchor_peerlist)
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{
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for (const auto& pe: anchor_peerlist) {
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_note("Considering connecting (out) to peer: " << pe.id << " " << epee::string_tools::get_ip_string_from_int32(pe.adr.ip) << ":" << boost::lexical_cast<std::string>(pe.adr.port));
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if(is_peer_used(pe)) {
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_note("Peer is used");
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continue;
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}
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if(!is_remote_ip_allowed(pe.adr.ip)) {
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continue;
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}
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if(is_addr_recently_failed(pe.adr)) {
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continue;
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}
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MDEBUG("Selected peer: " << pe.id << " " << epee::string_tools::get_ip_string_from_int32(pe.adr.ip)
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<< ":" << boost::lexical_cast<std::string>(pe.adr.port)
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<< "[peer_type=" << anchor
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<< "] first_seen: " << epee::misc_utils::get_time_interval_string(time(NULL) - pe.first_seen));
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if(!try_to_connect_and_handshake_with_new_peer(pe.adr, false, 0, anchor, pe.first_seen)) {
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_note("Handshake failed");
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continue;
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}
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return true;
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}
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return false;
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}
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//-----------------------------------------------------------------------------------
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template<class t_payload_net_handler>
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bool node_server<t_payload_net_handler>::make_new_connection_from_peerlist(bool use_white_list)
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{
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size_t local_peers_count = use_white_list ? m_peerlist.get_white_peers_count():m_peerlist.get_gray_peers_count();
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@ -1079,10 +1145,10 @@ namespace nodetool
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MDEBUG("Selected peer: " << pe.id << " " << epee::string_tools::get_ip_string_from_int32(pe.adr.ip)
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<< ":" << boost::lexical_cast<std::string>(pe.adr.port)
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<< "[white=" << use_white_list
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<< "[peer_list=" << (use_white_list ? white : gray)
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<< "] last_seen: " << (pe.last_seen ? epee::misc_utils::get_time_interval_string(time(NULL) - pe.last_seen) : "never"));
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if(!try_to_connect_and_handshake_with_new_peer(pe.adr, false, pe.last_seen, use_white_list)) {
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if(!try_to_connect_and_handshake_with_new_peer(pe.adr, false, pe.last_seen, use_white_list ? white : gray)) {
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_note("Handshake failed");
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continue;
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}
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@ -1144,19 +1210,22 @@ namespace nodetool
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{
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if(conn_count < expected_white_connections)
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{
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//start from white list
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if(!make_expected_connections_count(true, expected_white_connections))
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//start from anchor list
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if(!make_expected_connections_count(anchor, P2P_DEFAULT_ANCHOR_CONNECTIONS_COUNT))
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return false;
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//and then do grey list
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if(!make_expected_connections_count(false, m_config.m_net_config.connections_count))
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//then do white list
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if(!make_expected_connections_count(white, expected_white_connections))
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return false;
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//then do grey list
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if(!make_expected_connections_count(gray, m_config.m_net_config.connections_count))
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return false;
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}else
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{
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//start from grey list
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if(!make_expected_connections_count(false, m_config.m_net_config.connections_count))
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if(!make_expected_connections_count(gray, m_config.m_net_config.connections_count))
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return false;
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//and then do white list
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if(!make_expected_connections_count(true, m_config.m_net_config.connections_count))
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if(!make_expected_connections_count(white, m_config.m_net_config.connections_count))
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return false;
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}
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}
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@ -1165,11 +1234,17 @@ namespace nodetool
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}
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//-----------------------------------------------------------------------------------
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template<class t_payload_net_handler>
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bool node_server<t_payload_net_handler>::make_expected_connections_count(bool white_list, size_t expected_connections)
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bool node_server<t_payload_net_handler>::make_expected_connections_count(PeerType peer_type, size_t expected_connections)
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{
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if (m_offline)
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return true;
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std::vector<anchor_peerlist_entry> apl;
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if (peer_type == anchor) {
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m_peerlist.get_and_empty_anchor_peerlist(apl);
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}
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size_t conn_count = get_outgoing_connections_count();
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//add new connections from white peers
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while(conn_count < expected_connections)
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@ -1177,8 +1252,18 @@ namespace nodetool
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if(m_net_server.is_stop_signal_sent())
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return false;
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if(!make_new_connection_from_peerlist(white_list))
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if (peer_type == anchor && !make_new_connection_from_anchor_peerlist(apl)) {
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break;
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}
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if (peer_type == white && !make_new_connection_from_peerlist(true)) {
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break;
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}
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if (peer_type == gray && !make_new_connection_from_peerlist(false)) {
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break;
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}
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conn_count = get_outgoing_connections_count();
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}
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return true;
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@ -1660,6 +1745,14 @@ namespace nodetool
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template<class t_payload_net_handler>
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void node_server<t_payload_net_handler>::on_connection_close(p2p_connection_context& context)
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{
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if (!m_net_server.is_stop_signal_sent() && !context.m_is_income) {
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nodetool::net_address na = AUTO_VAL_INIT(na);
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na.ip = context.m_remote_ip;
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na.port = context.m_remote_port;
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m_peerlist.remove_from_peer_anchor(na);
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}
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MINFO("["<< epee::net_utils::print_connection_context(context) << "] CLOSE CONNECTION");
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}
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@ -54,7 +54,7 @@
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#include "net_peerlist_boost_serialization.h"
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#define CURRENT_PEERLIST_STORAGE_ARCHIVE_VER 4
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#define CURRENT_PEERLIST_STORAGE_ARCHIVE_VER 5
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namespace nodetool
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{
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@ -77,13 +77,15 @@ namespace nodetool
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bool get_gray_peer_by_index(peerlist_entry& p, size_t i);
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bool append_with_peer_white(const peerlist_entry& pr);
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bool append_with_peer_gray(const peerlist_entry& pr);
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bool append_with_peer_anchor(const anchor_peerlist_entry& ple);
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bool set_peer_just_seen(peerid_type peer, uint32_t ip, uint32_t port);
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bool set_peer_just_seen(peerid_type peer, const net_address& addr);
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bool set_peer_unreachable(const peerlist_entry& pr);
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bool is_ip_allowed(uint32_t ip);
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bool get_random_gray_peer(peerlist_entry& pe);
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bool remove_from_peer_gray(const peerlist_entry& pe);
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bool get_and_empty_anchor_peerlist(std::vector<anchor_peerlist_entry>& apl);
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bool remove_from_peer_anchor(const net_address& addr);
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private:
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struct by_time{};
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@ -145,6 +147,16 @@ namespace nodetool
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boost::multi_index::ordered_non_unique<boost::multi_index::tag<by_time>, boost::multi_index::member<peerlist_entry,int64_t,&peerlist_entry::last_seen> >
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>
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> peers_indexed_old;
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typedef boost::multi_index_container<
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anchor_peerlist_entry,
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boost::multi_index::indexed_by<
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// access by anchor_peerlist_entry::net_adress
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boost::multi_index::ordered_unique<boost::multi_index::tag<by_addr>, boost::multi_index::member<anchor_peerlist_entry,net_address,&anchor_peerlist_entry::adr> >,
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// sort by anchor_peerlist_entry::first_seen
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boost::multi_index::ordered_non_unique<boost::multi_index::tag<by_time>, boost::multi_index::member<anchor_peerlist_entry,int64_t,&anchor_peerlist_entry::first_seen> >
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>
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> anchor_peers_indexed;
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public:
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template <class Archive, class t_version_type>
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@ -161,8 +173,15 @@ namespace nodetool
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peers_indexed_from_old(pio, m_peers_white);
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return;
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}
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a & m_peers_white;
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a & m_peers_gray;
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if(ver < 5) {
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return;
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}
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a & m_peers_anchor;
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}
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private:
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@ -178,6 +197,7 @@ namespace nodetool
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peers_indexed m_peers_gray;
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peers_indexed m_peers_white;
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anchor_peers_indexed m_peers_anchor;
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};
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//--------------------------------------------------------------------------------------------------
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inline
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@ -398,6 +418,24 @@ namespace nodetool
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::append_with_peer_anchor(const anchor_peerlist_entry& ple)
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{
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TRY_ENTRY();
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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auto by_addr_it_anchor = m_peers_anchor.get<by_addr>().find(ple.adr);
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if(by_addr_it_anchor == m_peers_anchor.get<by_addr>().end()) {
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m_peers_anchor.insert(ple);
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}
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return true;
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CATCH_ENTRY_L0("peerlist_manager::append_with_peer_anchor()", false);
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::get_random_gray_peer(peerlist_entry& pe)
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{
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TRY_ENTRY();
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@ -435,7 +473,46 @@ namespace nodetool
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CATCH_ENTRY_L0("peerlist_manager::remove_from_peer_gray()", false);
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}
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//--------------------------------------------------------------------------------------------------
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::get_and_empty_anchor_peerlist(std::vector<anchor_peerlist_entry>& apl)
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{
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TRY_ENTRY();
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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auto begin = m_peers_anchor.get<by_time>().begin();
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auto end = m_peers_anchor.get<by_time>().end();
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std::for_each(begin, end, [&apl](const anchor_peerlist_entry &a) {
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apl.push_back(a);
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});
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m_peers_anchor.get<by_time>().clear();
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return true;
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CATCH_ENTRY_L0("peerlist_manager::get_and_empty_anchor_peerlist()", false);
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}
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//--------------------------------------------------------------------------------------------------
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inline
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bool peerlist_manager::remove_from_peer_anchor(const net_address& addr)
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{
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TRY_ENTRY();
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CRITICAL_REGION_LOCAL(m_peerlist_lock);
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anchor_peers_indexed::index_iterator<by_addr>::type iterator = m_peers_anchor.get<by_addr>().find(addr);
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if (iterator != m_peers_anchor.get<by_addr>().end()) {
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m_peers_anchor.erase(iterator);
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}
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return true;
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CATCH_ENTRY_L0("peerlist_manager::remove_from_peer_anchor()", false);
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}
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//--------------------------------------------------------------------------------------------------
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}
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BOOST_CLASS_VERSION(nodetool::peerlist_manager, CURRENT_PEERLIST_STORAGE_ARCHIVE_VER)
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@ -50,5 +50,13 @@ namespace boost
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a & pl.id;
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a & pl.last_seen;
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}
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template <class Archive, class ver_type>
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inline void serialize(Archive &a, nodetool::anchor_peerlist_entry& pl, const ver_type ver)
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{
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a & pl.adr;
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a & pl.id;
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a & pl.first_seen;
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}
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}
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}
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@ -56,6 +56,13 @@ namespace nodetool
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int64_t last_seen;
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};
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struct anchor_peerlist_entry
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{
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net_address adr;
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peerid_type id;
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int64_t first_seen;
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};
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struct connection_entry
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{
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net_address adr;
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