dht: use asio for networking, scheduling

vscode: add default settings for cmake
2026-11-09 04:49:14 +00:00 · 2023-05-14 21:21:09 -04:00 · 2023-05-14 17:23:21 -04:00
130 changed files with 1942 additions and 2562 deletions
@@ -42,7 +42,7 @@ jobs:
    - uses: actions/checkout@v3
    - name: Dependencies
      run: |
-        sudo apt install libncurses5-dev libreadline-dev nettle-dev libfmt-dev \
+        sudo apt install libncurses5-dev libreadline-dev nettle-dev \
        libgnutls28-dev libcppunit-dev libmsgpack-dev libargon2-0-dev
    - name: Configure
      run: |
@@ -57,7 +57,7 @@ jobs:

  build-macos:
    name: macOS/Clang build
-    runs-on: macos-12
+    runs-on: macos-11
    steps:
    - uses: actions/checkout@v3
    - name: Dependencies
@@ -67,9 +67,9 @@ jobs:
    - name: restinio
      run: |
        mkdir restinio && cd restinio
-        wget https://github.com/aberaud/restinio/archive/6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz
-        ls -l && tar -xzf 6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz
-        cd restinio-6fd08b65f6f15899dd0de3c801f6a5462b811c64/dev
+        wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz
+        ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz
+        cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev
        cmake -DCMAKE_INSTALL_PREFIX=/usr/local -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
                -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
                -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none .
@@ -18,9 +18,9 @@ jobs:
      - name: restinio
        run: |
          mkdir restinio && cd restinio \
-          && wget https://github.com/aberaud/restinio/archive/6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-          && ls -l && tar -xzf 6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-          && cd restinio-6fd08b65f6f15899dd0de3c801f6a5462b811c64/dev \
+          && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+          && ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+          && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev \
          && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
                  -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
                  -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
@@ -0,0 +1,9 @@
+{
+    "cmake.configureSettings": {
+        "OPENDHT_SANITIZE": true,
+        "OPENDHT_PROXY_CLIENT": true,
+        "OPENDHT_PROXY_SERVER": true,
+        "OPENDHT_C": true,
+        "OPENDHT_DOCUMENTATION": false
+    }
+}
@@ -14,8 +14,8 @@ include(FindPkgConfig)
 include(cmake/CheckAtomic.cmake)
 include(CTest)

-set (opendht_VERSION_MAJOR 3)
-set (opendht_VERSION_MINOR 1.4)
+set (opendht_VERSION_MAJOR 2)
+set (opendht_VERSION_MINOR 5.5)
 set (opendht_VERSION ${opendht_VERSION_MAJOR}.${opendht_VERSION_MINOR})
 set (PACKAGE_VERSION ${opendht_VERSION})
 set (VERSION "${opendht_VERSION}")
@@ -23,6 +23,7 @@ set (VERSION "${opendht_VERSION}")
 # Options
 option (BUILD_SHARED_LIBS "Build shared library" ON)
 CMAKE_DEPENDENT_OPTION (OPENDHT_STATIC "Build static library" OFF BUILD_SHARED_LIBS ON)
+option (OPENDHT_LOG "Build with logs" ON)
 option (OPENDHT_PYTHON "Build Python bindings" OFF)
 option (OPENDHT_TOOLS "Build DHT tools" ON)
 option (OPENDHT_SYSTEMD "Install systemd module" OFF)
@@ -47,9 +48,7 @@ set (CMAKE_CXX_STANDARD 17)
 set (CMAKE_CXX_STANDARD_REQUIRED on)

 # Dependencies
-if (NOT HAVE_CXX_ATOMICS_WITHOUT_LIB
-        # For ARM EABI (armel), little-endian MIPS (mipsel), etc.
-        OR NOT HAVE_CXX_ATOMICS64_WITHOUT_LIB)
+if (NOT HAVE_CXX_ATOMICS_WITHOUT_LIB)
    link_libraries (atomic)
 endif ()

@@ -85,14 +84,12 @@ if (NOT MSVC)
        )
    endif()

-    if (OPENDHT_HTTP OR OPENDHT_PEER_DISCOVERY)
-        find_path(ASIO_INCLUDE_DIR asio.hpp REQUIRED)
-    endif ()
-
-    find_package(fmt)
+    find_path(ASIO_INCLUDE_DIR asio.hpp REQUIRED)

    if (OPENDHT_HTTP)
        find_package(Restinio REQUIRED)
+        find_library(FMT_LIBRARY fmt)
+        add_library(fmt SHARED IMPORTED)
        find_library(HTTP_PARSER_LIBRARY http_parser)
        add_library(http_parser SHARED IMPORTED)
        set(http_parser_lib "-lhttp_parser")
@@ -142,7 +139,6 @@ if (NOT MSVC)
    set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-return-type -Wno-deprecated -Wall -Wextra -Wnon-virtual-dtor -pedantic-errors -fvisibility=hidden")
    if (OPENDHT_SANITIZE)
        set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fstack-protector-strong")
-        set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address -fstack-protector-strong")
    endif ()
 else ()
    add_definitions(-D_WINSOCK_DEPRECATED_NO_WARNINGS
@@ -157,6 +153,11 @@ endif ()
 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMSGPACK_NO_BOOST -DMSGPACK_DISABLE_LEGACY_NIL -DMSGPACK_DISABLE_LEGACY_CONVERT")

 add_definitions(-DPACKAGE_VERSION="${opendht_VERSION}")
+if (OPENDHT_LOG)
+    add_definitions(-DOPENDHT_LOG=true)
+else ()
+    add_definitions(-DOPENDHT_LOG=false)
+endif()

 if (ASIO_INCLUDE_DIR)
    include_directories (SYSTEM "${ASIO_INCLUDE_DIR}")
@@ -207,12 +208,12 @@ list (APPEND opendht_SOURCES
    src/log.cpp
    src/network_utils.cpp
    src/thread_pool.cpp
+    src/udp_socket.cpp
 )

 list (APPEND opendht_HEADERS
    include/opendht/def.h
    include/opendht/utils.h
-    include/opendht/sockaddr.h
    include/opendht/rng.h
    include/opendht/crypto.h
    include/opendht/infohash.h
@@ -229,9 +230,9 @@ list (APPEND opendht_HEADERS
    include/opendht/rate_limiter.h
    include/opendht/securedht.h
    include/opendht/log.h
-    include/opendht/logger.h
+    include/opendht/log_enable.h
    include/opendht/thread_pool.h
-    include/opendht/network_utils.h
+    include/opendht/udp_socket.h
    include/opendht.h
 )

@@ -350,7 +351,7 @@ if (NOT HAVE_MSGPACKCXX)
    target_link_libraries(opendht PUBLIC ${MSGPACK_TARGET})
 endif()
 if (APPLE)
-    target_link_libraries(opendht PRIVATE "-framework CoreFoundation" "-framework Security")
+    target_link_libraries(opendht PRIVATE SYSTEM "-framework CoreFoundation" "-framework Security")
 endif()
 if (MSVC)
    if (OPENDHT_STATIC)
@@ -366,7 +367,7 @@ else()
        PUBLIC
            ${CMAKE_THREAD_LIBS_INIT}
            PkgConfig::GnuTLS
-            fmt::fmt
+            ${FMT_LIBRARY}
    )
    if (Jsoncpp_FOUND)
        target_link_libraries(opendht PUBLIC PkgConfig::Jsoncpp)
@@ -21,11 +21,6 @@ Values are distributed over the network, with redundancy.
 ## Documentation
 See the wiki: <https://github.com/savoirfairelinux/opendht/wiki>

-#### How to run a node
-
-You can help contributing to the public network by running a stable node with a public IP address.
-https://github.com/savoirfairelinux/opendht/wiki/Running-a-node-with-dhtnode
-
 #### How-to build and install

 Build instructions: <https://github.com/savoirfairelinux/opendht/wiki/Build-the-library>
@@ -96,18 +91,17 @@ for r in results:
 - msgpack-c 1.2+, used for data serialization.
 - GnuTLS 3.3+, used for cryptographic operations.
 - Nettle 2.4+, a GnuTLS dependency for crypto.
- {fmt} 9.0+, for log formatting.
 - (optional) restinio used for the REST API.
 - (optional) jsoncpp 1.7.4-3+, used for the REST API.
 - Build tested with GCC 7+ (GNU/Linux, Windows with MinGW), Clang/LLVM (GNU/Linux, Android, macOS, iOS).
- Build tested with Microsoft Visual Studio 2019, 2022
+- Build tested with Microsoft Visual Studio 2017, 2019, 2022

 ## Contact

 IRC: join us on Libera.chat at [`#opendht`](https://web.libera.chat/#opendht).

 ## License
-Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+Copyright (C) 2014-2022 Savoir-faire Linux Inc.

 OpenDHT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -31,6 +31,7 @@ extern "C" {
 #endif

 #include <errno.h>
+#include <cstdlib>

 const char* dht_version()
 {
@@ -358,14 +359,53 @@ int dht_runner_run_config(dht_runner* r, in_port_t port, const dht_runner_config
    return 0;
 }

+asio::ip::udp::endpoint sockaddr_to_endpoint(struct sockaddr* addr, socklen_t addr_len) {
+    if (addr->sa_family == AF_INET) {
+        auto addr_in = reinterpret_cast<struct sockaddr_in*>(addr);
+        asio::ip::address_v4 address(ntohl(addr_in->sin_addr.s_addr));
+        unsigned short port = ntohs(addr_in->sin_port);
+        return asio::ip::udp::endpoint(address, port);
+    } else if (addr->sa_family == AF_INET6) {
+        auto addr_in6 = reinterpret_cast<struct sockaddr_in6*>(addr);
+        asio::ip::address_v6::bytes_type bytes;
+        std::memcpy(bytes.data(), &addr_in6->sin6_addr, 16);
+        asio::ip::address_v6 address(bytes, addr_in6->sin6_scope_id);
+        unsigned short port = ntohs(addr_in6->sin6_port);
+        return asio::ip::udp::endpoint(address, port);
+    } else {
+        throw std::runtime_error("Invalid sockaddr family");
+    }
+}
+
+struct sockaddr* endpoint_to_sockaddr(const asio::ip::udp::endpoint& endpoint, socklen_t* addr_len = nullptr) {
+    const struct sockaddr* addr_src = endpoint.data();
+    auto len = endpoint.size();
+    struct sockaddr* addr_copy = reinterpret_cast<struct sockaddr*>(std::malloc(len));
+    std::memcpy(addr_copy, addr_src, len);
+    if (addr_len)
+        *addr_len = len;
+    return addr_copy;
+}
+
+struct sockaddr** endpoints_to_sockaddrs(const std::vector<asio::ip::udp::endpoint>& endpoints) {
+    size_t num_endpoints = endpoints.size();
+    struct sockaddr** sockaddrs = reinterpret_cast<struct sockaddr**>(std::malloc((num_endpoints + 1) * sizeof(struct sockaddr*)));
+    for (size_t i = 0; i < num_endpoints; ++i) {
+        sockaddrs[i] = endpoint_to_sockaddr(endpoints[i]);
+    }
+    sockaddrs[num_endpoints] = nullptr; // Null-terminate the array
+    return sockaddrs;
+}
+
+
 void dht_runner_ping(dht_runner* r, struct sockaddr* addr, socklen_t addr_len, dht_done_cb done_cb, void* cb_user_data) {
    auto runner = reinterpret_cast<dht::DhtRunner*>(r);
    if (done_cb) {
-        runner->bootstrap(dht::SockAddr(addr, addr_len), [done_cb, cb_user_data](bool ok){
+        runner->bootstrap(sockaddr_to_endpoint(addr, addr_len), [done_cb, cb_user_data](bool ok){
            done_cb(ok, cb_user_data);
        });
    } else {
-        runner->bootstrap(dht::SockAddr(addr, addr_len));
+        runner->bootstrap(sockaddr_to_endpoint(addr, addr_len));
    }
 }

@@ -505,11 +545,7 @@ struct sockaddr** dht_runner_get_public_address(const dht_runner* r) {
    auto addrs = const_cast<dht::DhtRunner*>(runner)->getPublicAddress();
    if (addrs.empty())
        return nullptr;
-    auto ret = (struct sockaddr**)malloc(sizeof(struct sockaddr*) * (addrs.size() + 1));
-    for (size_t i=0; i<addrs.size(); i++)
-        ret[i] = addrs[i].release();
-    ret[addrs.size()] = nullptr;
-    return ret;
+    return endpoints_to_sockaddrs(addrs);
 }

 #ifdef __cplusplus
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,7 +1,7 @@
 dnl define macros
-m4_define([opendht_major_version], 3)
-m4_define([opendht_minor_version], 1)
-m4_define([opendht_patch_version], 4)
+m4_define([opendht_major_version], 2)
+m4_define([opendht_minor_version], 5)
+m4_define([opendht_patch_version], 5)
 m4_define([opendht_version],
 		  [opendht_major_version.opendht_minor_version.opendht_patch_version])

@@ -34,6 +34,12 @@ AC_LANG(C++)
 AC_PROG_CXX
 AX_CXX_COMPILE_STDCXX(17,[noext],[mandatory])

+dnl Check for logs
+AC_ARG_ENABLE([logs], [AS_HELP_STRING([--disable-logs], [Disable DHT logs])])
+AS_IF([test "x$enable_logs" != "xno"], [], [
+	AC_DEFINE([OPENDHT_LOG], [false], [Define if DHT logs are disabled])
+])
+
 dnl Check for C binding
 AC_ARG_ENABLE([c], [AS_HELP_STRING([--disable-c], [Disable DHT C binding])])
 AM_CONDITIONAL(ENABLE_C, test x$enable_c != "xno")
@@ -165,16 +171,15 @@ AS_IF([test "x$have_openssl" = "xyes"], [
    AC_MSG_NOTICE([Not using OpenSSL])
 ])

-PKG_CHECK_MODULES([Fmt], [fmt >= 5.3.0], [have_fmt=yes], [have_fmt=no])
-AS_IF([test "x$have_fmt" = "xyes"], [
-    AC_MSG_NOTICE([Using libfmt])
-], [
-    AC_MSG_NOTICE([Missing libfmt files])
-])
-
 AM_COND_IF([PROXY_CLIENT_OR_SERVER], [
    AC_CHECK_HEADERS([asio.hpp],, AC_MSG_ERROR([Missing Asio headers files]))
    CXXFLAGS="${CXXFLAGS} -DASIO_STANDALONE"
+    PKG_CHECK_MODULES([Fmt], [fmt >= 5.3.0], [have_fmt=yes], [have_fmt=no])
+    AS_IF([test "x$have_fmt" = "xyes"], [
+        AC_MSG_NOTICE([Using libfmt])
+    ], [
+        AC_MSG_NOTICE([Missing libfmt files])
+    ])
    # http_parser has no pkgconfig, instead we check with:
    AC_CHECK_LIB(http_parser, exit,, AC_MSG_ERROR([Missing HttpParser library files]))
    AC_CHECK_HEADERS([http_parser.h], [http_parser_headers=yes; break;])
@@ -19,7 +19,7 @@
 .SH DESCRIPTION
 Runs an OpenDHT node, with a CLI (default) or as a daemon (with \fB'-d'\fP or \fB'-s'\fP).
 Commands available in the interactive shell are:
-.EX
+.EE
    h, help    Print this help message.
    q, quit    Quit the program.
    log        Start/stop printing DHT logs.
@@ -39,7 +39,6 @@ Commands available in the interactive shell are:
                          private key.
    e [key] [dest] [str]  Put string value at [key], encrypted for [dest] with
                          its public key (if found).
-.EE
 .SH OPTIONS
 .TP
 \fB\-h\fP
@@ -19,7 +19,7 @@ RUN cd opendht && mkdir build && cd build \
 				-DOPENDHT_SYSTEMD=On \
 	&& make -j8 && make install

-FROM alpine:3.18 AS install
+FROM alpine:3.17 AS install
 COPY --from=build /install /
 RUN apk add --no-cache \
        libstdc++ \
@@ -18,9 +18,9 @@ RUN apt-get update && apt-get install -y \

 RUN echo "*** Downloading RESTinio ***" \
    && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-    && ls -l && tar -xzf 6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-    && cd restinio-6fd08b65f6f15899dd0de3c801f6a5462b811c64/dev \
+    && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev \
    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
             -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
             -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
@@ -1,4 +1,4 @@
-FROM alpine:3.18
+FROM alpine:3.17
 LABEL maintainer="Adrien Béraud <adrien.beraud@savoirfairelinux.com>"
 LABEL org.opencontainers.image.source https://github.com/savoirfairelinux/opendht

@@ -13,9 +13,9 @@ RUN apk add --no-cache \

 RUN echo "*** Downloading RESTinio ***" \
    && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-    && tar -xzf 6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-    && cd restinio-6fd08b65f6f15899dd0de3c801f6a5462b811c64/dev \
+    && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev \
    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
             -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
             -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
@@ -22,9 +22,9 @@ ENV CXX c++

 RUN echo "*** Downloading RESTinio ***" \
    && mkdir restinio && cd restinio \
-    && wget https://github.com/aberaud/restinio/archive/6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-    && ls -l && tar -xzf 6fd08b65f6f15899dd0de3c801f6a5462b811c64.tar.gz \
-    && cd restinio-6fd08b65f6f15899dd0de3c801f6a5462b811c64/dev \
+    && wget https://github.com/aberaud/restinio/archive/bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && ls -l && tar -xzf bbaa034dbcc7555ce67df0f8a1475591a7441733.tar.gz \
+    && cd restinio-bbaa034dbcc7555ce67df0f8a1475591a7441733/dev \
    && cmake -DCMAKE_INSTALL_PREFIX=/usr -DRESTINIO_TEST=OFF -DRESTINIO_SAMPLE=OFF \
             -DRESTINIO_INSTALL_SAMPLES=OFF -DRESTINIO_BENCH=OFF -DRESTINIO_INSTALL_BENCHES=OFF \
             -DRESTINIO_FIND_DEPS=ON -DRESTINIO_ALLOW_SOBJECTIZER=Off -DRESTINIO_USE_BOOST_ASIO=none . \
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -44,6 +44,18 @@ enum class NodeStatus {
    Connecting,   // 1+ nodes
    Connected     // 1+ good nodes
 };
+struct OPENDHT_PUBLIC DhtNodeStatus {
+    NodeStatus ipv4;
+    NodeStatus ipv6;
+    inline NodeStatus get() const {
+        if (ipv4 == NodeStatus::Connected or ipv6 == NodeStatus::Connected)
+            return NodeStatus::Connected;
+        if (ipv4 == NodeStatus::Connecting or ipv6 == NodeStatus::Connecting)
+            return NodeStatus::Connecting;
+        return NodeStatus::Disconnected;
+    }
+};
+using StatusCallback = std::function<void(DhtNodeStatus)>;

 inline constexpr const char*
 statusToStr(NodeStatus status) {
@@ -79,6 +91,7 @@ struct OPENDHT_PUBLIC NodeStats {
 struct OPENDHT_PUBLIC NodeInfo {
    InfoHash id;
    InfoHash node_id;
+    PkId node_long_id;
    NodeStats ipv4 {};
    NodeStats ipv6 {};
    size_t ongoing_ops {0};
@@ -170,19 +183,19 @@ using ValueCallback = std::function<bool(const std::vector<std::shared_ptr<Value
 using GetCallbackSimple = std::function<bool(std::shared_ptr<Value> value)>;
 using ShutdownCallback = std::function<void()>;
 using IdentityAnnouncedCb = std::function<void(bool)>;
-using PublicAddressChangedCb = std::function<void(std::vector<SockAddr>)>;

 using CertificateStoreQuery = std::function<std::vector<std::shared_ptr<crypto::Certificate>>(const InfoHash& pk_id)>;
-using DoneCallback = std::function<void(bool success, const std::vector<std::shared_ptr<Node>>& nodes)>;
-using DoneCallbackSimple = std::function<void(bool success)>;

 typedef bool (*GetCallbackRaw)(std::shared_ptr<Value>, void *user_data);
 typedef bool (*ValueCallbackRaw)(std::shared_ptr<Value>, bool expired, void *user_data);
+
+using DoneCallback = std::function<void(bool success, const std::vector<std::shared_ptr<Node>>& nodes)>;
 typedef void (*DoneCallbackRaw)(bool, std::vector<std::shared_ptr<Node>>*, void *user_data);
 typedef void (*ShutdownCallbackRaw)(void *user_data);
 typedef void (*DoneCallbackSimpleRaw)(bool, void *user_data);
 typedef bool (*FilterRaw)(const Value&, void *user_data);

+using DoneCallbackSimple = std::function<void(bool success)>;

 OPENDHT_PUBLIC GetCallbackSimple bindGetCb(GetCallbackRaw raw_cb, void* user_data);
 OPENDHT_PUBLIC GetCallback bindGetCb(GetCallbackSimple cb);
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
 *
@@ -772,7 +772,6 @@ OPENDHT_PUBLIC Identity generateEcIdentity(const std::string& name, const Identi
 OPENDHT_PUBLIC Identity generateEcIdentity(const std::string& name = "dhtnode", const Identity& ca = {});

 OPENDHT_PUBLIC void saveIdentity(const Identity& id, const std::string& path, const std::string& privkey_password = {});
-OPENDHT_PUBLIC Identity loadIdentity(const std::string &path,const std::string &privkey_password = {});

 /**
 * Performs SHA512, SHA256 or SHA1, depending on hash_length.
@@ -793,7 +792,7 @@ OPENDHT_PUBLIC void hash(const uint8_t* data, size_t data_length, uint8_t* hash,
 * that can be transmitted in clear, and will be generated if
 * not provided (32 bytes).
 */
-OPENDHT_PUBLIC Blob stretchKey(std::string_view password, Blob& salt, size_t key_length = 512/8);
+OPENDHT_PUBLIC Blob stretchKey(const std::string& password, Blob& salt, size_t key_length = 512/8);

 /**
 * AES-GCM encryption. Key must be 128, 192 or 256 bits long (16, 24 or 32 bytes).
@@ -802,55 +801,15 @@ OPENDHT_PUBLIC Blob aesEncrypt(const uint8_t* data, size_t data_length, const Bl
 OPENDHT_PUBLIC inline Blob aesEncrypt(const Blob& data, const Blob& key) {
    return aesEncrypt(data.data(), data.size(), key);
 }
-/**
- * AES-GCM encryption with argon2 key derivation.
- * This function uses `stretchKey` to generate an AES key from the password and a random salt.
- * The result is a bundle including the salt that can be decrypted with `aesDecrypt(data, password)`.
- * If needed, the salt or encrypted data can be individually extracted from the bundle with `aesGetSalt` and `aesGetEncrypted`.
- */
-OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, std::string_view password);
+OPENDHT_PUBLIC Blob aesEncrypt(const Blob& data, const std::string& password);

 /**
 * AES-GCM decryption.
 */
 OPENDHT_PUBLIC Blob aesDecrypt(const uint8_t* data, size_t data_length, const Blob& key);
 OPENDHT_PUBLIC inline Blob aesDecrypt(const Blob& data, const Blob& key) { return aesDecrypt(data.data(), data.size(), key); }
-OPENDHT_PUBLIC inline Blob aesDecrypt(std::string_view data, const Blob& key) { return aesDecrypt((uint8_t*)data.data(), data.size(), key); }
-
-OPENDHT_PUBLIC Blob aesDecrypt(const uint8_t* data, size_t data_length, std::string_view password);
-OPENDHT_PUBLIC inline Blob aesDecrypt(const Blob& data, std::string_view password) { return aesDecrypt(data.data(), data.size(), password); }
-OPENDHT_PUBLIC inline Blob aesDecrypt(std::string_view data, std::string_view password) { return aesDecrypt((uint8_t*)data.data(), data.size(), password); }
-
-/**
- * Get raw AES key from password and salt stored with the encrypted data.
- */
-OPENDHT_PUBLIC Blob aesGetKey(const uint8_t* data, size_t data_length, std::string_view password);
-OPENDHT_PUBLIC Blob inline aesGetKey(const Blob& data, std::string_view password) {
-    return aesGetKey(data.data(), data.size(), password);
-}
-/** Get the salt part of data password-encrypted with `aesEncrypt(data, password)` */
-OPENDHT_PUBLIC Blob aesGetSalt(const uint8_t* data, size_t data_length);
-OPENDHT_PUBLIC Blob inline aesGetSalt(const Blob& data) {
-    return aesGetSalt(data.data(), data.size());
-}
-/** Get the encrypted data part of data password-encrypted with `aesEncrypt(data, password)` */
-OPENDHT_PUBLIC std::string_view aesGetEncrypted(const uint8_t* data, size_t data_length);
-OPENDHT_PUBLIC std::string_view inline aesGetEncrypted(const Blob& data) {
-    return aesGetEncrypted(data.data(), data.size());
-}
-
-/** Build an encrypted bundle that can be decrypted with aesDecrypt(data, password).
- *  @param encryptedData: result of `aesEncrypt(data, key)` or `aesGetEncrypted`
- *  @param salt: should match the encryption key and password so that `stretchKey(password, salk) == key`.
- *  Can be obtained from an existing bundle with `aesGetSalt`.
- **/
-OPENDHT_PUBLIC Blob aesBuildEncrypted(const uint8_t* encryptedData, size_t data_length, const Blob& salt);
-OPENDHT_PUBLIC Blob inline aesBuildEncrypted(const Blob& encryptedData, const Blob& salt) {
-    return aesBuildEncrypted(encryptedData.data(), encryptedData.size(), salt);
-}
-OPENDHT_PUBLIC Blob inline aesBuildEncrypted(std::string_view encryptedData, const Blob& salt) {
-    return aesBuildEncrypted((const uint8_t*)encryptedData.data(), encryptedData.size(), salt);
-}
+OPENDHT_PUBLIC Blob aesDecrypt(const uint8_t* data, size_t data_length, const std::string& password);
+OPENDHT_PUBLIC inline Blob aesDecrypt(const Blob& data, const std::string& password) { return aesDecrypt(data.data(), data.size(), password); }

 }
 }
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -19,7 +19,8 @@
 #pragma once

 #include "value.h"
-#include "sockaddr.h"
+
+#include <asio/ip/udp.hpp>

 namespace dht {
 enum class ImStatus : uint8_t {
@@ -215,9 +216,10 @@ private:
 public:
    static const ValueType TYPE;

-    IpServiceAnnouncement(sa_family_t family = AF_UNSPEC, in_port_t p = 0) {
-        addr.setFamily(family);
-        addr.setPort(p);
+    IpServiceAnnouncement(sa_family_t family = AF_UNSPEC, in_port_t p = 0) 
+        : addr() {
+        addr.address(family == AF_INET ? asio::ip::address(asio::ip::address_v4::any()) : asio::ip::address(asio::ip::address_v6::any()));
+        addr.port(p);
    }

    IpServiceAnnouncement(const SockAddr& sa) : addr(sa) {}
@@ -229,23 +231,25 @@ public:
    template <typename Packer>
    void msgpack_pack(Packer& pk) const
    {
-        pk.pack_bin(addr.getLength());
-        pk.pack_bin_body((const char*)addr.get(), addr.getLength());
+        pk.pack_bin(addr.size());
+        pk.pack_bin_body((const char*)addr.data(), addr.size());
    }

    virtual void msgpack_unpack(const msgpack::object& o)
    {
+        //{(sockaddr*)o.via.bin.ptr, (socklen_t)o.via.bin.size};
+        //auto p = 
        if (o.type == msgpack::type::BIN)
-            addr = {(sockaddr*)o.via.bin.ptr, (socklen_t)o.via.bin.size};
+            addr = *reinterpret_cast<const asio::ip::udp::endpoint*>((sockaddr*)o.via.bin.ptr);
        else
            throw msgpack::type_error();
    }

    in_port_t getPort() const {
-        return addr.getPort();
+        return addr.port();
    }
    void setPort(in_port_t p) {
-        addr.setPort(p);
+        addr.port(p);
    }

    const SockAddr& getPeerAddr() const {
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -29,6 +29,8 @@
 #include "callbacks.h"
 #include "dht_interface.h"

+#include <asio/strand.hpp>
+
 #include <string>
 #include <array>
 #include <vector>
@@ -44,6 +46,7 @@ namespace dht {

 namespace net {
 struct Request;
+class UdpSocket;
 } /* namespace net */

 struct Storage;
@@ -65,7 +68,7 @@ public:
     * Initialise the Dht with two open sockets (for IPv4 and IP6)
     * and an ID for the node.
     */
-    Dht(std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Sp<Logger>& l = {});
+    Dht(std::shared_ptr<net::strand> strand, std::unique_ptr<net::DatagramSocket>&& sock, const Config& config, const Sp<Logger>& l = {});

    virtual ~Dht();

@@ -73,9 +76,6 @@ public:
     * Get the ID of the node.
     */
    inline const InfoHash& getNodeId() const override { return myid; }
-    void setOnPublicAddressChanged(PublicAddressChangedCb cb) override {
-        publicAddressChangedCb_ = std::move(cb);
-    }

    NodeStatus updateStatus(sa_family_t af) override;

@@ -89,8 +89,14 @@ public:
    NodeStatus getStatus() const override {
        return std::max(getStatus(AF_INET), getStatus(AF_INET6));
    }
+    void addOnConnectedCallback(std::function<void()> cb) {
+        onConnectCallbacks_.emplace(std::move(cb));
+    }
+    void addOnStateChangeCallback(StatusCallback cb) {
+        onStateChangeCallbacks_.emplace_back(std::move(cb));
+    }

-    net::DatagramSocket* getSocket() const override { return network_engine.getSocket(); };
+    const net::DatagramSocket* getSocket() const override { return network_engine.getSocket(); };

    /**
     * Performs final operations before quitting.
@@ -133,10 +139,10 @@ public:

    void pingNode(SockAddr, DoneCallbackSimple&& cb={}) override;

-    time_point periodic(const uint8_t *buf, size_t buflen, SockAddr, const time_point& now) override;
+    /*time_point periodic(const uint8_t *buf, size_t buflen, SockAddr, const time_point& now) override;
    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
        return periodic(buf, buflen, SockAddr(from, fromlen), now);
-    }
+    }*/

    /**
     * Get a value by searching on all available protocols (IPv4, IPv6),
@@ -265,6 +271,7 @@ public:
     */
    void connectivityChanged(sa_family_t) override;
    void connectivityChanged() override {
+        reported_addr.clear();
        connectivityChanged(AF_INET);
        connectivityChanged(AF_INET6);
    }
@@ -378,19 +385,17 @@ private:

    uint64_t secret {};
    uint64_t oldsecret {};
+    asio::steady_timer rotateRecretsJob;

    // registred types
    TypeStore types;

    using SearchMap = std::map<InfoHash, Sp<Search>>;
-    using ReportedAddr = std::pair<unsigned, SockAddr>;
-
    struct Kad {
        RoutingTable buckets {};
        SearchMap searches {};
        unsigned pending_pings {0};
        NodeStatus status;
-        std::vector<ReportedAddr> reported_addr;

        NodeStatus getStatus(time_point now) const;
        NodeStats getNodesStats(time_point now, const InfoHash& myid) const;
@@ -398,14 +403,13 @@ private:

    Kad dht4 {};
    Kad dht6 {};
-    PublicAddressChangedCb publicAddressChangedCb_ {};

    std::vector<std::pair<std::string,std::string>> bootstrap_nodes {};
    std::chrono::steady_clock::duration bootstrap_period {BOOTSTRAP_PERIOD};
-    Sp<Scheduler::Job> bootstrapJob {};
+    asio::steady_timer bootstrapJob;

    std::map<InfoHash, Storage> store;
-    std::map<SockAddr, StorageBucket, SockAddr::ipCmp> store_quota;
+    std::map<SockAddr, StorageBucket, ipCmp> store_quota;
    size_t total_values {0};
    size_t total_store_size {0};
    size_t max_store_keys {MAX_HASHES};
@@ -421,13 +425,18 @@ private:


    // timing
-    Scheduler scheduler;
-    Sp<Scheduler::Job> nextNodesConfirmation {};
-    Sp<Scheduler::Job> nextStorageMaintenance {};
+    asio::steady_timer nextNodesConfirmation;
+    asio::steady_timer nextStorageMaintenance;
+    asio::steady_timer expirationJob;
+    asio::steady_timer statusCheckJob;

    net::NetworkEngine network_engine;
+    using ReportedAddr = std::pair<unsigned, SockAddr>;
+    std::vector<ReportedAddr> reported_addr;

    std::string persistPath;
+    std::vector<StatusCallback> onStateChangeCallbacks_ {};
+    std::queue<std::function<void()>> onConnectCallbacks_ {};

    // are we a bootstrap node ?
    // note: Any running node can be used as a bootstrap node.
@@ -450,7 +459,7 @@ private:

    // Storage
    void storageAddListener(const InfoHash& id, const Sp<Node>& node, size_t tid, Query&& = {}, int version = 0);
-    bool storageStore(const InfoHash& id, const Sp<Value>& value, time_point created, const SockAddr& sa = {}, bool permanent = false);
+    bool storageStore(const InfoHash& id, const Sp<Value>& value, time_point created, const SockAddr* sa = nullptr, bool permanent = false);
    bool storageRefresh(const InfoHash& id, Value::Id vid);
    void expireStore();
    void expireStorage(InfoHash h);
@@ -494,7 +503,8 @@ private:
    void onNewNode(const Sp<Node>& node, int confirm);
    const Sp<Node> findNode(const InfoHash& id, sa_family_t af) const;
    bool trySearchInsert(const Sp<Node>& node);
-
+    void scheduleStatusCheck();
+    
    // Searches
    inline SearchMap& searches(sa_family_t af) { return dht(af).searches; }
    inline const SearchMap& searches(sa_family_t af) const { return dht(af).searches; }
@@ -504,6 +514,7 @@ private:
     * infohash (id), using the specified IP version (IPv4 or IPv6).
     */
    Sp<Search> search(const InfoHash& id, sa_family_t af, GetCallback = {}, QueryCallback = {}, DoneCallback = {}, Value::Filter = {}, const Sp<Query>& q = {});
+    void scheduleNodeConfirmation(const time_point& step);

    void announce(const InfoHash& id, sa_family_t af, Sp<Value> value, DoneCallback callback, time_point created=time_point::max(), bool permanent = false);
    size_t listenTo(const InfoHash& id, sa_family_t af, ValueCallback cb, Value::Filter f = {}, const Sp<Query>& q = {});
@@ -521,9 +532,13 @@ private:
    void confirmNodes();
    void expire();

+    void onStateChanged();
    void onConnected();
    void onDisconnected();

+    inline const time_point& time() const { return network_engine.time(); }
+    inline asio::io_context& context() const { return network_engine.context(); }
+
    /**
     * Generic function to execute when a 'get' request has completed.
     *
@@ -568,7 +583,7 @@ private:
     * @param sr  The search for which we want to announce a value.
     * @param announce  The 'announce' structure.
     */
-    void searchSendAnnounceValue(const Sp<Search>& sr, unsigned syncLevel = TARGET_NODES);
+    void searchSendAnnounceValue(const Sp<Search>& sr);

    /**
     * Main process of a Search's operations. This function will demand the
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -19,22 +19,23 @@
 #pragma once

 #include "infohash.h"
-#include "logger.h"
+#include "log_enable.h"
 #include "node_export.h"
+#include "callbacks.h"

 #include <queue>

 namespace dht {

 namespace net {
-    class DatagramSocket;
+class DatagramSocket;
 }

 class OPENDHT_PUBLIC DhtInterface {
 public:
    DhtInterface() = default;
-    DhtInterface(const Logger& l) : logger_(std::make_shared<Logger>(l)) {}
-    DhtInterface(const std::shared_ptr<Logger>& l) : logger_(l) {}
+    DhtInterface(const Logger& l) : logger_(std::make_shared<Logger>(l)) {};
+    DhtInterface(const std::shared_ptr<Logger>& l) : logger_(l) {};
    virtual ~DhtInterface() = default;

    // [[deprecated]]
@@ -45,16 +46,14 @@ public:
    /**
     * Get the current status of the node for the given family.
     */
-    virtual NodeStatus updateStatus(sa_family_t af) { return getStatus(af); }
+    virtual NodeStatus updateStatus(sa_family_t af) { return getStatus(af); };
    virtual NodeStatus getStatus(sa_family_t af) const = 0;
    virtual NodeStatus getStatus() const = 0;

-    void addOnConnectedCallback(std::function<void()> cb) {
-        onConnectCallbacks_.emplace(std::move(cb));
-    }
-    virtual void setOnPublicAddressChanged(PublicAddressChangedCb) {}
+    virtual void addOnConnectedCallback(std::function<void()> cb) = 0;
+    virtual void addOnStateChangeCallback(StatusCallback cb) = 0;

-    virtual net::DatagramSocket* getSocket() const { return {}; }
+    virtual const net::DatagramSocket* getSocket() const { return {}; };

    /**
     * Get the ID of the DHT node.
@@ -93,9 +92,6 @@ public:

    virtual void pingNode(SockAddr, DoneCallbackSimple&& cb={}) = 0;

-    virtual time_point periodic(const uint8_t *buf, size_t buflen, SockAddr, const time_point& now) = 0;
-    virtual time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) = 0;
-
    /**
     * Get a value by searching on all available protocols (IPv4, IPv6),
     * and call the provided get callback when values are found at key.
@@ -233,6 +229,18 @@ public:

    virtual std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) = 0;

+    /**
+     * Enable or disable logging of DHT internal messages
+     */
+    virtual void setLoggers(LogMethod error = {}, LogMethod warn = {}, LogMethod debug = {}) {
+        if (logger_) {
+            logger_->DBG = std::move(debug);
+            logger_->WARN = std::move(warn);
+            logger_->ERR = std::move(error);
+        } else
+            logger_= std::make_shared<Logger>(std::move(error), std::move(warn), std::move(debug));
+    }
+
    virtual void setLogger(const Logger& l) {
        if (logger_)
            *logger_ = l;
@@ -266,7 +274,6 @@ public:

 protected:
    std::shared_ptr<Logger> logger_ {};
-    std::queue<std::function<void()>> onConnectCallbacks_ {};
 };

 } // namespace dht
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -54,7 +54,7 @@ public:

    explicit DhtProxyClient(
        std::shared_ptr<crypto::Certificate> serverCA, crypto::Identity clientIdentity,
-        std::function<void()> loopSignal, const std::string& serverHost,
+        std::shared_ptr<asio::io_context::strand> strand, const std::string& serverHost,
        const std::string& pushClientId = "", std::shared_ptr<Logger> logger = {});

    void setHeaderFields(http::Request& request);
@@ -89,9 +89,6 @@ public:
     * Get the ID of the node.
     */
    inline const InfoHash& getNodeId() const override { return myid; }
-    void setOnPublicAddressChanged(PublicAddressChangedCb cb) override {
-        publicAddressChangedCb_ = std::move(cb);
-    }

    /**
     * Get the current status of the node for the given family.
@@ -100,6 +97,13 @@ public:
    NodeStatus getStatus() const override {
        return std::max(getStatus(AF_INET), getStatus(AF_INET6));
    }
+    void addOnConnectedCallback(std::function<void()> cb) {
+        onConnectCallbacks_.emplace(std::move(cb));
+    }
+    void addOnStateChangeCallback(StatusCallback cb) {
+        onStateChangeCallbacks_.emplace_back(std::move(cb));
+    }
+    void onStateChanged();

    /**
     * Performs final operations before quitting.
@@ -216,11 +220,6 @@ public:
     */
    void pushNotificationReceived(const std::map<std::string, std::string>& notification) override;

-    time_point periodic(const uint8_t*, size_t, SockAddr, const time_point& now) override;
-    time_point periodic(const uint8_t* buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
-        return periodic(buf, buflen, SockAddr(from, fromlen), now);
-    }
-
    /**
     * Similar to Dht::get, but sends a Query to filter data remotely.
     * @param key the key for which to query data for.
@@ -288,7 +287,6 @@ public:
    }
    void connectivityChanged() override {
        getProxyInfos();
-        loopSignal_();
    }

 private:
@@ -360,7 +358,8 @@ private:
    SockAddr publicAddressV4_;
    SockAddr publicAddressV6_;
    std::atomic_bool launchConnectedCbs_ {false};
-    PublicAddressChangedCb publicAddressChangedCb_ {};
+    std::vector<StatusCallback> onStateChangeCallbacks_ {};
+    std::queue<std::function<void()>> onConnectCallbacks_ {};

    InfoHash myid {};

@@ -371,7 +370,10 @@ private:
     * ASIO I/O Context for sockets in httpClient_
     * Note: Each context is used in one thread only
     */
-    asio::io_context httpContext_;
+    //asio::io_context httpContext_;
+    //std::shared_ptr<asio::io_context> httpContext_;
+    std::shared_ptr<asio::io_context::strand> strand_;
+    asio::io_context& context() const { return strand_->context(); }
    mutable std::mutex resolverLock_;
    std::shared_ptr<http::Resolver> resolver_;

@@ -391,12 +393,6 @@ private:
    size_t listenerToken_ {0};
    std::map<InfoHash, ProxySearch> searches_;

-    /**
-     * Callbacks should be executed in the main thread.
-     */
-    std::mutex lockCallbacks_;
-    std::vector<std::function<void()>> callbacks_;
-
    Sp<InfoState> infoState_;

    /**
@@ -442,8 +438,6 @@ private:
 #endif
 #endif

-    const std::function<void()> loopSignal_;
-
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
    std::string fillBody(bool resubscribe);
    void getPushRequest(Json::Value&) const;
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -25,7 +25,6 @@
 #include "infohash.h"
 #include "proxy.h"
 #include "scheduler.h"
-#include "sockaddr.h"
 #include "value.h"
 #include "http.h"

@@ -87,8 +86,9 @@ public:
     */
    DhtProxyServer(const std::shared_ptr<DhtRunner>& dht,
        const ProxyServerConfig& config = {},
-        const std::shared_ptr<log::Logger>& logger = {});
+        const std::shared_ptr<dht::Logger>& logger = {});

+    void stop();
    virtual ~DhtProxyServer();

    DhtProxyServer(const DhtProxyServer& other) = delete;
@@ -364,7 +364,7 @@ private:
    mutable std::mutex requestLock_;
    std::map<unsigned int /*id*/, std::shared_ptr<http::Request>> requests_;

-    std::shared_ptr<log::Logger> logger_;
+    std::shared_ptr<dht::Logger> logger_;

    std::shared_ptr<ServerStats> stats_;
    std::shared_ptr<NodeInfo> nodeInfo_ {};
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -24,10 +24,10 @@
 #include "infohash.h"
 #include "value.h"
 #include "callbacks.h"
-#include "sockaddr.h"
-#include "logger.h"
-#include "network_utils.h"
+#include "log_enable.h"
 #include "node_export.h"
+#include "network_utils.h"
+#include "udp_socket.h"

 #include <thread>
 #include <mutex>
@@ -52,10 +52,7 @@ struct SecureDhtConfig;
 * thread that will update the DHT when appropriate.
 */
 class OPENDHT_PUBLIC DhtRunner {
-
 public:
-    using StatusCallback = std::function<void(NodeStatus, NodeStatus)>;
-
    struct Config {
        SecureDhtConfig dht_config {};
        bool threaded {true};
@@ -74,11 +71,11 @@ public:
    struct Context {
        std::shared_ptr<Logger> logger {};
        std::unique_ptr<net::DatagramSocket> sock;
+        std::shared_ptr<asio::io_context> ioContext {};
        std::shared_ptr<PeerDiscovery> peerDiscovery {};
        StatusCallback statusChangedCallback {};
        CertificateStoreQuery certificateStore {};
        IdentityAnnouncedCb identityAnnouncedCb {};
-        PublicAddressChangedCb publicAddressChangedCb {};
        Context() {}
    };

@@ -350,6 +347,7 @@ public:
    void setLogger(const Logger& logger) {
        setLogger(std::make_shared<Logger>(logger));
    }
+    void setLoggers(LogMethod err = {}, LogMethod warn = {}, LogMethod debug = {});

    /**
     * Only print logs related to the given InfoHash (if given), or disable filter (if zeroes).
@@ -407,20 +405,6 @@ public:

    void run(const Config& config, Context&& context);

-    void setOnStatusChanged(StatusCallback&& cb) {
-        statusCb = std::move(cb);
-    }
-
-    /**
-     * In non-threaded mode, the user should call this method
-     * regularly and everytime a new packet is received.
-     * @return the next op
-     */
-    time_point loop() {
-        std::lock_guard<std::mutex> lck(dht_mtx);
-        return loop_();
-    }
-
    /**
     * Gracefuly disconnect from network.
     */
@@ -475,17 +459,20 @@ private:
        Stopping
    };

-    time_point loop_();
-
-    NodeStatus getStatus() const {
-        return std::max(status4, status6);
-    }
-
    bool checkShutdown();
    void opEnded();
    DoneCallback bindOpDoneCallback(DoneCallback&& cb);
    DoneCallbackSimple bindOpDoneCallback(DoneCallbackSimple&& cb);

+    inline void post(std::function<void()>&& op, bool prio = false) {
+        ioContext_->post(asio::bind_executor(*strand_, std::move(op)));
+    }
+
+    void postOp(std::function<void(SecureDht&)>&& op, bool prio = false);
+
+    std::shared_ptr<asio::io_context> ioContext_;
+    std::shared_ptr<asio::io_context::strand> strand_;
+
    /** DHT instance */
    std::unique_ptr<SecureDht> dht_;

@@ -504,11 +491,7 @@ private:
    mutable std::mutex dht_mtx {};
    std::thread dht_thread {};
    std::condition_variable cv {};
-    std::mutex sock_mtx {};
-    net::PacketList rcv {};
-    decltype(rcv) rcv_free {};
-
-    std::queue<std::function<void(SecureDht&)>> pending_ops_prio {};
+    /*std::queue<std::function<void(SecureDht&)>> pending_ops_prio {};*/
    std::queue<std::function<void(SecureDht&)>> pending_ops {};
    std::mutex storage_mtx {};

@@ -516,10 +499,6 @@ private:
    std::atomic_size_t ongoing_ops {0};
    std::vector<ShutdownCallback> shutdownCallbacks_;

-    NodeStatus status4 {NodeStatus::Disconnected},
-               status6 {NodeStatus::Disconnected};
-    StatusCallback statusCb {nullptr};
-
    /** PeerDiscovery Parameters */
    std::shared_ptr<PeerDiscovery> peerDiscovery_;

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -53,9 +53,7 @@ class tls_socket_t;
 }

 namespace dht {
-namespace log {
 struct Logger;
-}

 namespace crypto {
 struct Certificate;
@@ -90,9 +88,9 @@ public:
 class OPENDHT_PUBLIC Connection : public std::enable_shared_from_this<Connection>
 {
 public:
-    Connection(asio::io_context& ctx, const bool ssl = true, std::shared_ptr<log::Logger> l = {});
+    Connection(asio::io_context& ctx, const bool ssl = true, std::shared_ptr<dht::Logger> l = {});
    Connection(asio::io_context& ctx, std::shared_ptr<dht::crypto::Certificate> server_ca,
-               const dht::crypto::Identity& identity, std::shared_ptr<log::Logger> l = {});
+               const dht::crypto::Identity& identity, std::shared_ptr<dht::Logger> l = {});
    ~Connection();

    inline unsigned int id() const { return  id_; };
@@ -150,7 +148,7 @@ private:
    asio::ip::address local_address_;

    std::unique_ptr<asio::steady_timer> timeout_timer_;
-    std::shared_ptr<log::Logger> logger_;
+    std::shared_ptr<dht::Logger> logger_;
    bool checkOcsp_ {false};
 };

@@ -174,15 +172,15 @@ public:
    using ResolverCb = std::function<void(const asio::error_code& ec,
                                          const std::vector<asio::ip::tcp::endpoint>& endpoints)>;

-    Resolver(asio::io_context& ctx, const std::string& url, std::shared_ptr<log::Logger> logger = {});
+    Resolver(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
    Resolver(asio::io_context& ctx, const std::string& host, const std::string& service,
-             const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
+             const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});

    // use already resolved endpoints with classes using this resolver
    Resolver(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint> endpoints,
-             const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
+             const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
    Resolver(asio::io_context& ctx, const std::string& url, std::vector<asio::ip::tcp::endpoint> endpoints,
-            std::shared_ptr<log::Logger> logger = {});
+            std::shared_ptr<dht::Logger> logger = {});

    ~Resolver();

@@ -192,7 +190,7 @@ public:

    void add_callback(ResolverCb cb, sa_family_t family = AF_UNSPEC);

-    std::shared_ptr<log::Logger> getLogger() const {
+    std::shared_ptr<Logger> getLogger() const {
        return logger_;
    }

@@ -210,7 +208,7 @@ private:
    bool completed_ {false};
    std::queue<ResolverCb> cbs_;

-    std::shared_ptr<log::Logger> logger_;
+    std::shared_ptr<dht::Logger> logger_;
 };

 class Request;
@@ -242,14 +240,14 @@ public:

    // resolves implicitly
    Request(asio::io_context& ctx, const std::string& url, const Json::Value& json, OnJsonCb jsoncb,
-            std::shared_ptr<log::Logger> logger = {});
+            std::shared_ptr<dht::Logger> logger = {});
    Request(asio::io_context& ctx, const std::string& url, OnJsonCb jsoncb,
-            std::shared_ptr<log::Logger> logger = {});
+            std::shared_ptr<dht::Logger> logger = {});

-    Request(asio::io_context& ctx, const std::string& url, std::shared_ptr<log::Logger> logger = {});
+    Request(asio::io_context& ctx, const std::string& url, std::shared_ptr<dht::Logger> logger = {});
    Request(asio::io_context& ctx, const std::string& host, const std::string& service,
-            const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
-    Request(asio::io_context& ctx, const std::string& url, OnDoneCb onDone, std::shared_ptr<log::Logger> logger = {});
+            const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});
+    Request(asio::io_context& ctx, const std::string& url, OnDoneCb onDone, std::shared_ptr<dht::Logger> logger = {});

    // user defined resolver
    Request(asio::io_context& ctx, std::shared_ptr<Resolver> resolver, sa_family_t family = AF_UNSPEC);
@@ -257,7 +255,7 @@ public:

    // user defined resolved endpoints
    Request(asio::io_context& ctx, std::vector<asio::ip::tcp::endpoint>&& endpoints,
-            const bool ssl = false, std::shared_ptr<log::Logger> logger = {});
+            const bool ssl = false, std::shared_ptr<dht::Logger> logger = {});

    ~Request();

@@ -284,7 +282,7 @@ public:

    void set_certificate_authority(std::shared_ptr<dht::crypto::Certificate> certificate);
    void set_identity(const dht::crypto::Identity& identity);
-    void set_logger(std::shared_ptr<log::Logger> logger);
+    void set_logger(std::shared_ptr<dht::Logger> logger);

    /**
     * Define the HTTP header/body as per https://tools.ietf.org/html/rfc7230.
@@ -330,8 +328,6 @@ private:

    void build();

-    static std::string url_encode(std::string_view value);
-
    void init_default_headers();
    /**
     * Initialized and wraps the http_parser callbacks with our user defined callbacks.
@@ -351,7 +347,7 @@ private:

    mutable std::mutex mutex_;

-    std::shared_ptr<log::Logger> logger_;
+    std::shared_ptr<dht::Logger> logger_;

    restinio::http_request_header_t header_;
    std::map<restinio::http_field_t, std::string> headers_;
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *              Nicolas Reynaud <nicolas.reynaud@savoirfairelinux.com>
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -22,20 +22,7 @@
 #include "rng.h"

 #include <msgpack.hpp>
-#include <fmt/core.h>
-
-#ifndef _WIN32
-#include <netinet/in.h>
-#include <netdb.h>
-#ifdef __ANDROID__
-typedef uint16_t in_port_t;
-#endif
-#else
-#include <iso646.h>
-#include <ws2tcpip.h>
-typedef uint16_t sa_family_t;
-typedef uint16_t in_port_t;
-#endif
+#include <asio/ip/udp.hpp>

 #include <iostream>
 #include <iomanip>
@@ -51,6 +38,7 @@ typedef uint16_t in_port_t;

 namespace dht {

+
 using byte = uint8_t;

 namespace crypto {
@@ -395,10 +383,3 @@ Hash<N>::toString() const
 }

 }
-
-template <size_t N>
-struct fmt::formatter<dht::Hash<N>>: formatter<string_view> {
-  constexpr auto format(const dht::Hash<N>& c, format_context& ctx) const {
-    return formatter<string_view>::format(c.to_view(), ctx);
-  }
-};
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
@@ -20,7 +20,7 @@
 #pragma once

 #include "def.h"
-#include "logger.h"
+#include "log_enable.h"

 #include <iostream>
 #include <memory>
@@ -34,6 +34,42 @@ class DhtRunner;
 */
 namespace log {

+/**
+ * Terminal colors for logging
+ */
+namespace Color {
+    enum Code {
+        FG_RED      = 31,
+        FG_GREEN    = 32,
+        FG_YELLOW   = 33,
+        FG_BLUE     = 34,
+        FG_DEFAULT  = 39,
+        BG_RED      = 41,
+        BG_GREEN    = 42,
+        BG_BLUE     = 44,
+        BG_DEFAULT  = 49
+    };
+    class Modifier {
+        const Code code;
+    public:
+        constexpr Modifier(Code pCode) : code(pCode) {}
+        friend std::ostream&
+        operator<<(std::ostream& os, const Modifier& mod) {
+            return os << "\033[" << mod.code << 'm';
+        }
+    };
+}
+
+constexpr const Color::Modifier def(Color::FG_DEFAULT);
+constexpr const Color::Modifier red(Color::FG_RED);
+constexpr const Color::Modifier yellow(Color::FG_YELLOW);
+
+/**
+ * Print va_list to std::ostream (used for logging).
+ */
+OPENDHT_PUBLIC void
+printLog(std::ostream &s, char const *m, va_list args);
+
 OPENDHT_PUBLIC
 std::shared_ptr<Logger> getStdLogger();

@@ -0,0 +1,191 @@
+/*
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
+ *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "infohash.h"
+
+#include <cstdarg>
+
+#ifndef OPENDHT_LOG
+#define OPENDHT_LOG true
+#endif
+
+namespace dht {
+
+// Logging related utility functions
+
+/**
+ * Wrapper for logging methods
+ */
+struct LogMethod {
+    LogMethod() = default;
+
+    LogMethod(LogMethod&& l) : func(std::move(l.func)) {}
+    LogMethod(const LogMethod& l) : func(l.func) {}
+
+    LogMethod& operator=(dht::LogMethod&& l) {
+        func = std::forward<LogMethod>(l.func);
+        return *this;
+    }
+    LogMethod& operator=(const dht::LogMethod& l) {
+        func = l.func;
+        return *this;
+    }
+
+    template<typename T>
+    explicit LogMethod(T&& t) : func(std::forward<T>(t)) {}
+
+    template<typename T>
+    LogMethod(const T& t) : func(t) {}
+
+    void operator()(char const* format, ...) const {
+        va_list args;
+        va_start(args, format);
+        func(format, args);
+        va_end(args);
+    }
+    inline void log(char const* format, va_list args) const {
+        func(format, args);
+    }
+    explicit operator bool() const {
+        return (bool)func;
+    }
+
+    void logPrintable(const uint8_t *buf, size_t buflen) const {
+        std::string buf_clean(buflen, '\0');
+        for (size_t i=0; i<buflen; i++)
+            buf_clean[i] = isprint(buf[i]) ? buf[i] : '.';
+        (*this)("%s", buf_clean.c_str());
+    }
+private:
+    std::function<void(char const*, va_list)> func;
+};
+
+struct Logger {
+    LogMethod ERR = {};
+    LogMethod WARN = {};
+    LogMethod DBG = {};
+
+    Logger() = default;
+    Logger(LogMethod&& err, LogMethod&& warn, LogMethod&& dbg)
+        : ERR(std::move(err)), WARN(std::move(warn)), DBG(std::move(dbg)) {}
+    void setFilter(const InfoHash& f) {
+        filter_ = f;
+        filterEnable_ = static_cast<bool>(filter_);
+    }
+    inline void log0(const LogMethod& logger, char const* format, va_list args) const {
+#if OPENDHT_LOG
+        if (logger and not filterEnable_)
+            logger.log(format, args);
+#endif
+    }
+    inline void log1(const LogMethod& logger, const InfoHash& f, char const* format, va_list args) const {
+#if OPENDHT_LOG
+        if (logger and (not filterEnable_ or f == filter_))
+            logger.log(format, args);
+#endif
+    }
+    inline void log2(const LogMethod& logger, const InfoHash& f1, const InfoHash& f2, char const* format, va_list args) const {
+#if OPENDHT_LOG
+        if (logger and (not filterEnable_ or f1 == filter_ or f2 == filter_))
+            logger.log(format, args);
+#endif
+    }
+    inline void d(char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log0(DBG, format, args);
+        va_end(args);
+#endif
+    }
+    inline void d(const InfoHash& f, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log1(DBG, f, format, args);
+        va_end(args);
+#endif
+    }
+    inline void d(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log2(DBG, f1, f2, format, args);
+        va_end(args);
+#endif
+    }
+    inline void w(char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log0(WARN, format, args);
+        va_end(args);
+#endif
+    }
+    inline void w(const InfoHash& f, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log1(WARN, f, format, args);
+        va_end(args);
+#endif
+    }
+    inline void w(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log2(WARN, f1, f2, format, args);
+        va_end(args);
+#endif
+    }
+    inline void e(char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log0(ERR, format, args);
+        va_end(args);
+#endif
+    }
+    inline void e(const InfoHash& f, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log1(ERR, f, format, args);
+        va_end(args);
+#endif
+    }
+    inline void e(const InfoHash& f1, const InfoHash& f2, char const* format, ...) const {
+#if OPENDHT_LOG
+        va_list args;
+        va_start(args, format);
+        log2(ERR, f1, f2, format, args);
+        va_end(args);
+#endif
+    }
+private:
+    bool filterEnable_ {false};
+    InfoHash filter_ {};
+};
+
+}
@@ -1,118 +0,0 @@
-/*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
- *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include "infohash.h"
-
-#include <fmt/format.h>
-#include <fmt/printf.h>
-
-#include <functional>
-#include <string_view>
-#include <cstdarg>
-
-namespace dht {
-namespace log {
-
-enum class LogLevel {
-    debug, warning, error
-};
-
-using LogMethod = std::function<void(LogLevel, std::string&&)>;
-
-struct OPENDHT_PUBLIC Logger {
-    Logger() = delete;
-    Logger(LogMethod&& l)
-        : logger(std::move(l)) {
-            if (!logger)
-                throw std::invalid_argument{"logger and loggerf must be set"};
-        }
-    void setFilter(const InfoHash& f) {
-        filter_ = f;
-        filterEnable_ = static_cast<bool>(filter_);
-    }
-    inline void log0(LogLevel level, fmt::string_view format, fmt::printf_args args) const {
-        if (not filterEnable_)
-            logger(level, fmt::vsprintf(format, args));
-    }
-    inline void log1(LogLevel level, const InfoHash& f, fmt::string_view format, fmt::printf_args args) const {
-        if (not filterEnable_ or f == filter_)
-            logger(level, fmt::vsprintf(format, args));
-    }
-    inline void log2(LogLevel level, const InfoHash& f1, const InfoHash& f2, fmt::string_view format, fmt::printf_args args) const {
-        if (not filterEnable_ or f1 == filter_ or f2 == filter_)
-            logger(level, fmt::vsprintf(format, args));
-    }
-    template<typename S, typename... Args>
-    inline void debug(S&& format, Args&&... args) const {
-        logger(LogLevel::debug, fmt::format(format, args...));
-    }
-    template<typename S, typename... Args>
-    inline void warn(S&& format, Args&&... args) const {
-        logger(LogLevel::warning, fmt::format(format, args...));
-    }
-    template<typename S, typename... Args>
-    inline void error(S&& format, Args&&... args) const {
-        logger(LogLevel::error, fmt::format(format, args...));
-    }
-    template <typename... T>
-    inline void d(fmt::format_string<T...> format, T&&... args) const {
-        log0(LogLevel::debug, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void d(const InfoHash& f, fmt::format_string<T...> format, T&&... args) const {
-        log1(LogLevel::debug, f, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void d(const InfoHash& f1, const InfoHash& f2, fmt::format_string<T...> format, T&&... args) const {
-        log2(LogLevel::debug, f1, f2, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void w(fmt::format_string<T...> format, T&&... args) const {
-        log0(LogLevel::warning, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void w(const InfoHash& f, fmt::format_string<T...> format, T&&... args) const {
-        log1(LogLevel::warning, f, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void w(const InfoHash& f1, const InfoHash& f2, fmt::format_string<T...> format, T&&... args) const {
-        log2(LogLevel::warning, f1, f2, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void e(fmt::format_string<T...> format, T&&... args) const {
-        log0(LogLevel::error, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void e(const InfoHash& f, fmt::format_string<T...> format, T&&... args) const {
-        log1(LogLevel::error, f, format, fmt::make_printf_args(args...));
-    }
-    template <typename... T>
-    inline void e(const InfoHash& f1, const InfoHash& f2, fmt::format_string<T...> format, T&&... args) const {
-        log2(LogLevel::error, f1, f2, format, fmt::make_printf_args(args...));
-    }
-private:
-    LogMethod logger = {};
-    bool filterEnable_ {false};
-    InfoHash filter_ {};
-};
-
-}
-using Logger = log::Logger;
-}
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -19,16 +19,19 @@

 #pragma once

+#include "network_utils.h"
 #include "node_cache.h"
 #include "value.h"
 #include "infohash.h"
 #include "node.h"
-#include "scheduler.h"
 #include "utils.h"
 #include "rng.h"
 #include "rate_limiter.h"
-#include "logger.h"
-#include "network_utils.h"
+#include "log_enable.h"
+#include "udp_socket.h"
+
+#include <asio/strand.hpp>
+#include <asio/ip/udp.hpp>

 #include <vector>
 #include <string>
@@ -44,10 +47,6 @@ struct Request;
 struct Socket;
 struct TransId;

-#ifndef MSG_CONFIRM
-#define MSG_CONFIRM 0
-#endif
-
 struct NetworkConfig {
    NetId network {0};
    ssize_t max_req_per_sec {0};
@@ -217,10 +216,10 @@ public:
    NetworkEngine(
            InfoHash& myid,
            NetworkConfig config,
+            const Sp<strand>& strand,
            std::unique_ptr<DatagramSocket>&& sock,
            const Sp<Logger>& log,
            std::mt19937_64& rd,
-            Scheduler& scheduler,
            decltype(NetworkEngine::onError)&& onError,
            decltype(NetworkEngine::onNewNode)&& onNewNode,
            decltype(NetworkEngine::onReportedAddr)&& onReportedAddr,
@@ -233,7 +232,9 @@ public:

    ~NetworkEngine();

-    net::DatagramSocket* getSocket() const { return dht_socket.get(); };
+    asio::io_context& context() const { return strand_->context(); }
+
+    const net::DatagramSocket* getSocket() const { return dht_socket.get(); };

    void clear();

@@ -441,8 +442,8 @@ public:
     */
    void processMessage(const uint8_t *buf, size_t buflen, SockAddr addr);

-    Sp<Node> insertNode(const InfoHash& id, const SockAddr& addr) {
-        auto n = cache.getNode(id, addr, scheduler.time(), 0);
+    Sp<Node> insertNode(const InfoHash& id, const SockAddr& addr) {        
+        auto n = cache.getNode(id, addr, time(), 0);
        onNewNode(n, 0);
        return n;
    }
@@ -474,6 +475,12 @@ public:
    size_t getPartialCount() const {
        return partial_messages.size();
    }
+    /**
+     * Accessors for the common time reference used for synchronizing
+     * operations.
+     */
+    inline const time_point& time() const { return now; }
+    inline const time_point& syncTime() { return (now = clock::now()); }

 private:

@@ -499,7 +506,9 @@ private:

    static constexpr size_t MTU {1280};
    static constexpr size_t MAX_PACKET_VALUE_SIZE {600};
-    static constexpr size_t MAX_MESSAGE_VALUE_SIZE {56 * 1024};
+    static constexpr size_t MAX_MESSAGE_VALUE_SIZE {16 * MTU};
+
+    static const std::string my_v;

    void process(std::unique_ptr<ParsedMessage>&&, const SockAddr& from);

@@ -528,7 +537,7 @@ private:


    // basic wrapper for socket sendto function
-    int send(const SockAddr& addr, const char *buf, size_t len, bool confirmed = false);
+    asio::error_code send(const SockAddr& addr, const char *buf, size_t len, bool confirmed = false);

    void sendValueParts(Tid tid, const std::vector<Blob>& svals, const SockAddr& addr);
    std::vector<Blob> packValueHeader(msgpack::sbuffer&, std::vector<Sp<Value>>::const_iterator, std::vector<Sp<Value>>::const_iterator) const;
@@ -571,9 +580,10 @@ private:
    void deserializeNodes(ParsedMessage& msg, const SockAddr& from);

    /* DHT info */
+    Sp<strand> strand_;
    const InfoHash& myid;
    const NetworkConfig config {};
-    const std::unique_ptr<DatagramSocket> dht_socket;
+    std::unique_ptr<DatagramSocket> dht_socket;
    Sp<Logger> logger_;
    std::mt19937_64& rd;

@@ -581,7 +591,7 @@ private:

    // global limiting should be triggered by at least 8 different IPs
    using IpLimiter = RateLimiter;
-    using IpLimiterMap = std::map<SockAddr, IpLimiter, SockAddr::ipCmp>;
+    using IpLimiterMap = std::map<SockAddr, IpLimiter, ipCmp>;
    IpLimiterMap address_rate_limiter;
    RateLimiter rate_limiter;
    ssize_t limiter_maintenance {0};
@@ -592,10 +602,9 @@ private:

    MessageStats in_stats {}, out_stats {};
    std::set<SockAddr> blacklist {};
-
-    Scheduler& scheduler;
-
    bool logIncoming_ {false};
+
+    time_point now {clock::now()};
 };

 } /* namespace net  */
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -19,143 +19,21 @@

 #include "def.h"

-#include "sockaddr.h"
-#include "utils.h"
-#include "logger.h"
-
-#ifdef _WIN32
-#include <ws2tcpip.h>
-#include <winsock2.h>
-#else
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <unistd.h>
-#endif
-
+#include <asio.hpp>
+#include <chrono>
+#include <cstdint>
 #include <functional>
-#include <thread>
-#include <atomic>
-#include <mutex>
 #include <list>
+#include <memory>
+#include <vector>

 namespace dht {
 namespace net {

+using asio::ip::udp;
+//using time_point = std::chrono::high_resolution_clock::time_point;
+
 static const constexpr in_port_t DHT_DEFAULT_PORT = 4222;
-static const constexpr size_t RX_QUEUE_MAX_SIZE = 1024 * 64;
-static const constexpr std::chrono::milliseconds RX_QUEUE_MAX_DELAY(650);
-
-int bindSocket(const SockAddr& addr, SockAddr& bound);
-
-bool setNonblocking(int fd, bool nonblocking = true);
-
-#ifdef _WIN32
-void udpPipe(int fds[2]);
-#endif
-struct ReceivedPacket {
-    Blob data;
-    SockAddr from;
-    time_point received;
-};
-using PacketList = std::list<ReceivedPacket>;
-
-class OPENDHT_PUBLIC DatagramSocket {
-public:
-    /** A function that takes a list of new received packets and
-     *  optionally returns consumed packets for recycling.
-     **/
-    using OnReceive = std::function<PacketList(PacketList&& packets)>;
-    virtual ~DatagramSocket() {};
-
-    virtual int sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) = 0;
-
-    inline void setOnReceive(OnReceive&& cb) {
-        std::lock_guard<std::mutex> lk(lock);
-        rx_callback = std::move(cb);
-    }
-
-    virtual bool hasIPv4() const = 0;
-    virtual bool hasIPv6() const = 0;
-
-    SockAddr getBound(sa_family_t family = AF_UNSPEC) const {
-        std::lock_guard<std::mutex> lk(lock);
-        return getBoundRef(family);
-    }
-    in_port_t getPort(sa_family_t family = AF_UNSPEC) const {
-        std::lock_guard<std::mutex> lk(lock);
-        return getBoundRef(family).getPort();
-    }
-
-    virtual const SockAddr& getBoundRef(sa_family_t family = AF_UNSPEC) const = 0;
-
-    /** Virtual resolver mothod allows to implement custom resolver */
-    virtual std::vector<SockAddr> resolve(const std::string& host, const std::string& service = {}) {
-        return SockAddr::resolve(host, service);
-    }
-
-    virtual void stop() = 0;
-protected:
-
-    PacketList getNewPacket() {
-        PacketList pkts;
-        if (toRecycle_.empty()) {
-            pkts.emplace_back();
-        } else {
-            auto begIt = toRecycle_.begin();
-            auto begItNext = std::next(begIt);
-            pkts.splice(pkts.end(), toRecycle_, begIt, begItNext);
-        }
-        return pkts;
-    }
-
-    inline void onReceived(PacketList&& packets) {
-        std::lock_guard<std::mutex> lk(lock);
-        if (rx_callback) {
-            auto r = rx_callback(std::move(packets));
-            if (not r.empty() and toRecycle_.size() < RX_QUEUE_MAX_SIZE)
-                toRecycle_.splice(toRecycle_.end(), std::move(r));
-        }
-    }
-protected:
-    mutable std::mutex lock;
-private:
-    OnReceive rx_callback;
-    PacketList toRecycle_;
-};
-
-class OPENDHT_PUBLIC UdpSocket : public DatagramSocket {
-public:
-    UdpSocket(in_port_t port, const std::shared_ptr<Logger>& l = {});
-    UdpSocket(const SockAddr& bind4, const SockAddr& bind6, const std::shared_ptr<Logger>& l = {});
-    ~UdpSocket();
-
-    int sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) override;
-
-    const SockAddr& getBoundRef(sa_family_t family = AF_UNSPEC) const override {
-        return (family == AF_INET6) ? bound6 : bound4;
-    }
-
-    bool hasIPv4() const override {
-        std::lock_guard<std::mutex> lk(lock);
-        return s4 != -1;
-    }
-    bool hasIPv6() const override {
-        std::lock_guard<std::mutex> lk(lock);
-        return s6 != -1;
-    }
-
-    void stop() override;
-private:
-    std::shared_ptr<Logger> logger;
-    int s4 {-1};
-    int s6 {-1};
-    int stopfd {-1};
-    SockAddr bound4, bound6;
-    std::thread rcv_thread {};
-    std::atomic_bool running {false};
-
-    void openSockets(const SockAddr& bind4, const SockAddr& bind6);
-};

 }
 }
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -21,7 +21,6 @@

 #include "infohash.h" // includes socket structures
 #include "utils.h"
-#include "sockaddr.h"
 #include "node_export.h"

 #include <list>
@@ -50,16 +49,13 @@ struct Node {

    Node(const InfoHash& id, const SockAddr& addr, std::mt19937_64& rd, bool client=false);
    Node(const InfoHash& id, SockAddr&& addr, std::mt19937_64& rd, bool client=false);
-    Node(const InfoHash& id, const sockaddr* sa, socklen_t salen, std::mt19937_64& rd)
-        : Node(id, SockAddr(sa, salen), rd) {}
+    //Node(const InfoHash& id, const sockaddr* sa, socklen_t salen, std::mt19937_64& rd)
+    //    : Node(id, SockAddr(sa, salen), rd) {}

    const InfoHash& getId() const {
        return id;
    }
    const SockAddr& getAddr() const { return addr; }
-    std::string getAddrStr() const {
-        return addr.toString();
-    }
    bool isClient() const { return is_client; }
    bool isIncoming() { return time > reply_time; }

@@ -96,7 +92,7 @@ struct Node {
        ne.addr = addr;
        return ne;
    }
-    sa_family_t getFamily() const { return addr.getFamily(); }
+    sa_family_t getFamily() const { return addr.protocol().family(); }

    void update(const SockAddr&);

@@ -139,7 +135,7 @@ struct Node {
     */
    Tid getNewTid() {
        ++transaction_id;
-        return transaction_id ? transaction_id : ++transaction_id;
+        return transaction_id ? ++transaction_id : transaction_id;
    }

    std::string toString() const;
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -18,7 +18,9 @@

 #include "def.h"
 #include "infohash.h"
-#include "sockaddr.h"
+#include <asio/ip/udp.hpp>
+
+#include <string_view>

 #include <string_view>

@@ -27,7 +29,7 @@ using namespace std::literals;

 struct OPENDHT_PUBLIC NodeExport {
    InfoHash id;
-    SockAddr addr;
+    asio::ip::udp::endpoint addr;

    template <typename Packer>
    void msgpack_pack(Packer& pk) const
@@ -36,8 +38,8 @@ struct OPENDHT_PUBLIC NodeExport {
        pk.pack("id"sv);
        pk.pack(id);
        pk.pack("addr"sv);
-        pk.pack_bin(addr.getLength());
-        pk.pack_bin_body((const char*)addr.get(), (size_t)addr.getLength());
+        pk.pack_bin(addr.size());
+        pk.pack_bin_body((const char*)addr.data(), addr.size());
    }

    void msgpack_unpack(msgpack::object o);
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
 *              Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
 *
@@ -20,9 +20,9 @@
 #pragma once

 #include "def.h"
-#include "sockaddr.h"
 #include "infohash.h"
-#include "logger.h"
+#include "utils.h"
+#include "log_enable.h"

 #include <thread>

@@ -36,7 +36,7 @@ class OPENDHT_PUBLIC PeerDiscovery
 {
 public:
    static constexpr in_port_t DEFAULT_PORT = 8888;
-    using ServiceDiscoveredCallback = std::function<void(msgpack::object&&, SockAddr&&)>;
+    using ServiceDiscoveredCallback = std::function<void(msgpack::object&&, asio::ip::udp::endpoint)>;

    PeerDiscovery(in_port_t port = DEFAULT_PORT, std::shared_ptr<asio::io_context> ioContext = {}, std::shared_ptr<Logger> logger = {});
    ~PeerDiscovery();
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -149,9 +149,6 @@ public:
    void setLocalCertificateStore(CertificateStoreQuery&& query_method) {
        localQueryMethod_ = std::move(query_method);
    }
-    void setOnPublicAddressChanged(PublicAddressChangedCb cb) override {
-        dht_->setOnPublicAddressChanged(cb);
-    }

    /**
     * SecureDht to Dht proxy
@@ -207,12 +204,6 @@ public:
    std::vector<SockAddr> getPublicAddress(sa_family_t family = 0) override {
        return dht_->getPublicAddress(family);
    }
-    time_point periodic(const uint8_t *buf, size_t buflen, SockAddr sa, const time_point& now) override {
-        return dht_->periodic(buf, buflen, std::move(sa), now);
-    }
-    time_point periodic(const uint8_t *buf, size_t buflen, const sockaddr* from, socklen_t fromlen, const time_point& now) override {
-        return dht_->periodic(buf, buflen, from, fromlen, now);
-    }
    NodeStatus updateStatus(sa_family_t af) override  {
        return dht_->updateStatus(af);
    }
@@ -222,7 +213,13 @@ public:
    NodeStatus getStatus() const override {
        return dht_->getStatus();
    }
-    net::DatagramSocket* getSocket() const override {
+    void addOnConnectedCallback(std::function<void()> cb) override {
+        dht_->addOnConnectedCallback(std::move(cb));
+    }
+    void addOnStateChangeCallback(StatusCallback cb) override {
+        dht_->addOnStateChangeCallback(std::move(cb));
+    }
+    const net::DatagramSocket* getSocket() const override {
        return dht_->getSocket();
    };
    bool isRunning(sa_family_t af = 0) const override {
@@ -1,325 +0,0 @@
-/*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
- *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 3 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-#pragma once
-
-#include "def.h"
-
-#include <fmt/core.h>
-#include <fmt/format.h>
-#include <fmt/ostream.h>
-
-#ifndef _WIN32
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#ifdef __ANDROID__
-typedef uint16_t in_port_t;
-#endif
-#else
-#include <iso646.h>
-#include <stdint.h>
-#include <winsock2.h>
-#include <ws2def.h>
-#include <ws2tcpip.h>
-typedef uint16_t sa_family_t;
-typedef uint16_t in_port_t;
-#endif
-
-#include <string>
-#include <memory>
-#include <vector>
-#include <stdexcept>
-#include <stdlib.h>
-
-#include <cstring>
-#include <cstddef>
-
-namespace dht {
-
-OPENDHT_PUBLIC void print_addr(std::ostream& os, const sockaddr* sa, socklen_t slen);
-OPENDHT_PUBLIC std::string print_addr(const sockaddr* sa, socklen_t slen);
-OPENDHT_PUBLIC std::string print_addr(const sockaddr_storage& ss, socklen_t sslen);
-
-/**
- * A Socket Address (sockaddr*), with abstraction for IPv4, IPv6 address families.
- */
-class OPENDHT_PUBLIC SockAddr {
-public:
-    SockAddr() {}
-    SockAddr(const SockAddr& o) {
-        set(o.get(), o.getLength());
-    }
-    SockAddr(SockAddr&& o) noexcept : addr(std::move(o.addr)), len(o.len) {
-        o.len = 0;
-    }
-
-    /**
-     * Build from existing address.
-     */
-    SockAddr(const sockaddr* sa, socklen_t length) {
-        if (length > static_cast<socklen_t>(sizeof(sockaddr_storage)))
-            throw std::runtime_error("Socket address length is too large");
-        set(sa, length);
-    }
-    SockAddr(const sockaddr* sa) {
-        socklen_t len = 0;
-        if (sa) {
-            if (sa->sa_family == AF_INET)
-                len = sizeof(sockaddr_in);
-            else if(sa->sa_family == AF_INET6)
-                len = sizeof(sockaddr_in6);
-            else
-                throw std::runtime_error("Unknown address family");
-        }
-        set(sa, len);
-    }
-
-    /**
-     * Build from an existing sockaddr_storage structure.
-     */
-    SockAddr(const sockaddr_storage& ss, socklen_t len) : SockAddr((const sockaddr*)&ss, len) {}
-
-    static std::vector<SockAddr> resolve(const std::string& host, const std::string& service = {});
-
-    bool operator<(const SockAddr& o) const {
-        if (len != o.len)
-            return len < o.len;
-        return std::memcmp((const uint8_t*)get(), (const uint8_t*)o.get(), len) < 0;
-    }
-
-    bool equals(const SockAddr& o) const {
-        return len == o.len
-            && std::memcmp((const uint8_t*)get(), (const uint8_t*)o.get(), len) == 0;
-    }
-    SockAddr& operator=(const SockAddr& o) {
-        set(o.get(), o.getLength());
-        return *this;
-    }
-    SockAddr& operator=(SockAddr&& o) {
-        len = o.len;
-        o.len = 0;
-        addr = std::move(o.addr);
-        return *this;
-    }
-
-    std::string toString() const {
-        return print_addr(get(), getLength());
-    }
-
-    /**
-     * Returns the address family or AF_UNSPEC if the address is not set.
-     */
-    sa_family_t getFamily() const { return len ? addr->sa_family : AF_UNSPEC; }
-
-    /**
-     * Resize the managed structure to the appropriate size (if needed),
-     * in which case the sockaddr structure is cleared to zero,
-     * and set the address family field (sa_family).
-     */
-    void setFamily(sa_family_t af) {
-        socklen_t new_length;
-        switch(af) {
-        case AF_INET:
-            new_length = sizeof(sockaddr_in);
-            break;
-        case AF_INET6:
-            new_length = sizeof(sockaddr_in6);
-            break;
-        default:
-            new_length = 0;
-        }
-        if (new_length != len) {
-            len = new_length;
-            if (len) addr.reset((sockaddr*)::calloc(len, 1));
-            else     addr.reset();
-        }
-        if (len)
-            addr->sa_family = af;
-    }
-
-    /**
-     * Set Network Interface to any
-     */
-    void setAny() {
-        auto family = getFamily();
-        switch(family) {
-        case AF_INET:
-            getIPv4().sin_addr.s_addr = htonl(INADDR_ANY);
-            break;
-        case AF_INET6:
-            getIPv6().sin6_addr = in6addr_any;
-            break;
-        }
-    }
-
-    /**
-     * Retreive the port (in host byte order) or 0 if the address is not
-     * of a supported family.
-     */
-    in_port_t getPort() const {
-        switch(getFamily()) {
-        case AF_INET:
-            return ntohs(getIPv4().sin_port);
-        case AF_INET6:
-            return ntohs(getIPv6().sin6_port);
-        default:
-            return 0;
-        }
-    }
-    /**
-     * Set the port. The address must be of a supported family.
-     * @param p The port in host byte order.
-     */
-    void setPort(in_port_t p) {
-        switch(getFamily()) {
-        case AF_INET:
-            getIPv4().sin_port = htons(p);
-            break;
-        case AF_INET6:
-            getIPv6().sin6_port = htons(p);
-            break;
-        }
-    }
-
-    /**
-     * Set the address part of the socket address from a numeric IP address (string representation).
-     * Family must be already set. Throws in case of parse failue.
-     */
-    void setAddress(const char* address);
-
-    /**
-     * Returns the accessible byte length at the pointer returned by #get().
-     * If zero, #get() returns null.
-     */
-    socklen_t getLength() const { return len; }
-
-    /**
-     * An address is defined to be true if its length is not zero.
-     */
-    explicit operator bool() const noexcept {
-        return len;
-    }
-
-    /**
-     * Returns the address to the managed sockaddr structure.
-     * The accessible length is returned by #getLength().
-     */
-    const sockaddr* get() const { return addr.get(); }
-
-    /**
-     * Returns the address to the managed sockaddr structure.
-     * The accessible length is returned by #getLength().
-     */
-    sockaddr* get() { return addr.get(); }
-
-    inline const sockaddr_in& getIPv4() const {
-        return *reinterpret_cast<const sockaddr_in*>(get());
-    }
-    inline const sockaddr_in6& getIPv6() const {
-        return *reinterpret_cast<const sockaddr_in6*>(get());
-    }
-    inline sockaddr_in& getIPv4() {
-        return *reinterpret_cast<sockaddr_in*>(get());
-    }
-    inline sockaddr_in6& getIPv6() {
-        return *reinterpret_cast<sockaddr_in6*>(get());
-    }
-
-    /** 
-     * Releases the ownership of the managed object, if any.
-     * The caller is responsible for deleting the object with free().
-     */
-    inline sockaddr* release() {
-        len = 0;
-        return addr.release();
-    }
-
-    /**
-     * Return true if address is a loopback IP address.
-     */
-    bool isLoopback() const;
-
-    /**
-     * Return true if address is not a public IP address.
-     */
-    bool isPrivate() const;
-
-    bool isUnspecified() const;
-
-    bool isMappedIPv4() const;
-    SockAddr getMappedIPv4();
-    SockAddr getMappedIPv6();
-
-    /**
-     * A comparator to classify IP addresses, only considering the
-     * first 64 bits in IPv6.
-     */
-    struct ipCmp {
-        bool operator()(const SockAddr& a, const SockAddr& b) const {
-            if (a.len != b.len)
-                return a.len < b.len;
-            socklen_t start, len;
-            switch(a.getFamily()) {
-                case AF_INET:
-                    start = offsetof(sockaddr_in, sin_addr);
-                    len = sizeof(in_addr);
-                    break;
-                case AF_INET6:
-                    start = offsetof(sockaddr_in6, sin6_addr);
-                    // don't consider more than 64 bits (IPv6)
-                    len = 8;
-                    break;
-                default:
-                    start = 0;
-                    len = a.len;
-                    break;
-            }
-            return std::memcmp((uint8_t*)a.get()+start,
-                               (uint8_t*)b.get()+start, len) < 0;
-        }
-    };
-    OPENDHT_PUBLIC friend std::ostream& operator<< (std::ostream& s, const SockAddr& h) {
-        print_addr(s, h.get(), h.getLength());
-        return s;
-    }
-
-private:
-    struct free_delete { void operator()(void* p) { ::free(p); } };
-    std::unique_ptr<sockaddr, free_delete> addr {};
-    socklen_t len {0};
-
-    void set(const sockaddr* sa, socklen_t length) {
-        if (len != length) {
-            len = length;
-            if (len) addr.reset((sockaddr*)::malloc(len));
-            else     addr.reset();
-        }
-        if (len)
-            std::memcpy((uint8_t*)get(), (const uint8_t*)sa, len);
-    }
-
-};
-
-OPENDHT_PUBLIC bool operator==(const SockAddr& a, const SockAddr& b);
-
-}
-
-#if FMT_VERSION >= 90000
-template <> struct fmt::formatter<dht::SockAddr> : ostream_formatter {};
-#endif
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
@@ -37,7 +37,7 @@ public:
    static ThreadPool& io();

    ThreadPool();
-    ThreadPool(unsigned minThreads, unsigned maxThreads = 0);
+    ThreadPool(size_t maxThreads);
    ~ThreadPool();

    void run(std::function<void()>&& cb);
@@ -61,7 +61,7 @@ public:
        return get(std::move(cb));
    }

-    void stop(bool wait = true);
+    void stop();
    void join();

 private:
@@ -72,12 +72,7 @@ private:
    unsigned readyThreads_ {0};
    bool running_ {true};

-    unsigned minThreads_;
    const unsigned maxThreads_;
-    std::chrono::steady_clock::duration threadExpirationDelay {std::chrono::minutes(5)};
-    double threadDelayRatio_ {2};
-
-    void threadEnded(std::thread&);
 };

 class OPENDHT_PUBLIC Executor : public std::enable_shared_from_this<Executor> {
@@ -0,0 +1,106 @@
+#pragma once
+
+#include <asio.hpp>
+#include <chrono>
+#include <cstdint>
+#include <functional>
+#include <memory>
+#include <vector>
+
+namespace dht {
+namespace net {
+
+using asio::ip::udp;
+using strand = asio::io_context::strand;
+
+struct ReceivedPacket {
+    std::vector<uint8_t> data;
+    udp::endpoint from;
+    //time_point received;
+};
+
+
+class DatagramSocket {
+public:
+    /** A function that takes a list of new received packets and
+     *  optionally returns consumed packets for recycling.
+     **/
+    //using OnReceive = std::function<PacketList(PacketList&& packets)>;
+    using ReceiveCallback = std::function<void(const ReceivedPacket&)>;
+
+    virtual ~DatagramSocket() {};
+
+    virtual asio::error_code sendTo(const uint8_t* data, size_t size, const udp::endpoint& dest) = 0;
+
+    virtual void setOnReceive(const ReceiveCallback& cb) = 0;/* {
+        //std::lock_guard<std::mutex> lk(lock);
+        //rx_callback = std::move(cb);
+    }*/
+
+    virtual bool hasIPv4() const = 0;
+    virtual bool hasIPv6() const = 0;
+
+    virtual udp::endpoint getBound(sa_family_t family = AF_UNSPEC) const = 0;
+    in_port_t getPort(sa_family_t family = AF_UNSPEC) const {
+        //std::lock_guard<std::mutex> lk(lock);
+        return getBound(family).port();
+    }
+
+    //virtual const udp::endpoint& getBoundRef(sa_family_t family = AF_UNSPEC) const = 0;
+
+    virtual void stop() = 0;
+/*protected:
+
+    PacketList getNewPacket() {
+        PacketList pkts;
+        if (toRecycle_.empty()) {
+            pkts.emplace_back();
+        } else {
+            auto begIt = toRecycle_.begin();
+            auto begItNext = std::next(begIt);
+            pkts.splice(pkts.end(), toRecycle_, begIt, begItNext);
+        }
+        return pkts;
+    }
+
+    inline void onReceived(PacketList&& packets) {
+        std::lock_guard<std::mutex> lk(lock);
+        if (rx_callback) {
+            auto r = rx_callback(std::move(packets));
+            if (not r.empty() and toRecycle_.size() < RX_QUEUE_MAX_SIZE)
+                toRecycle_.splice(toRecycle_.end(), std::move(r));
+        }
+    }
+protected:
+    mutable std::mutex lock;*/
+private:
+    //ReceiveCallback rx_callback;
+    //PacketList toRecycle_;
+};
+
+
+class UdpSocket : public DatagramSocket {
+public:
+    UdpSocket(std::shared_ptr<strand> strand, const udp::endpoint& ipv4_endpoint, const udp::endpoint& ipv6_endpoint);
+
+    void setOnReceive(const ReceiveCallback& callback);
+    void start_receive();
+
+    void stop();
+
+    void sendToAsync(std::vector<uint8_t> data, const udp::endpoint& to);
+    asio::error_code sendTo(const uint8_t* buf, size_t len, const udp::endpoint& to);
+
+    bool hasIPv4() const;
+    bool hasIPv6() const;
+
+    udp::endpoint getBound(sa_family_t af) const;
+private:
+    class SocketHandler;
+    //std::shared_ptr<strand> strand_;
+    std::shared_ptr<SocketHandler> ipv4_handler_;
+    std::shared_ptr<SocketHandler> ipv6_handler_;
+};
+
+}  // namespace net
+}  // namespace dht
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -21,6 +21,8 @@
 #include "def.h"

 #include <msgpack.hpp>
+#include <asio/ip/address.hpp>
+#include <asio/ip/udp.hpp>

 #include <chrono>
 #include <random>
@@ -62,6 +64,11 @@ void erase_if(std::map<Key, Item>& map, const Condition& condition)
 OPENDHT_PUBLIC std::pair<std::string, std::string>
 splitPort(const std::string& s);

+inline
+std::string print_addr(const asio::ip::udp::endpoint& endpoint) {
+    return asio::ip::detail::endpoint(endpoint.address(), endpoint.port()).to_string();
+}
+
 class OPENDHT_PUBLIC DhtException : public std::runtime_error {
 public:
    DhtException(const std::string &str = "") :
@@ -182,4 +189,36 @@ inline msgpack::object* findMapValue(const msgpack::object& map, std::string_vie
    return findMapValue(map, key.data(), key.size());
 }

+using SockAddr = asio::ip::udp::endpoint;
+
+/**
+ * A comparator to classify IP addresses, only considering the
+ * first 64 bits in IPv6.
+ */
+struct ipCmp {
+    bool operator()(const SockAddr& a, const SockAddr& b) const {
+        return a < b;
+        /*if (a.len != b.len)
+            return a.len < b.len;
+        socklen_t start, len;
+        switch(a.getFamily()) {
+            case AF_INET:
+                start = offsetof(sockaddr_in, sin_addr);
+                len = sizeof(in_addr);
+                break;
+            case AF_INET6:
+                start = offsetof(sockaddr_in6, sin6_addr);
+                // don't consider more than 64 bits (IPv6)
+                len = 8;
+                break;
+            default:
+                start = 0;
+                len = a.len;
+                break;
+        }
+        return std::memcmp((uint8_t*)a.get()+start,
+                            (uint8_t*)b.get()+start, len) < 0;*/
+    }
+};
+
 } // namespace dht
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -22,7 +22,6 @@
 #include "infohash.h"
 #include "crypto.h"
 #include "utils.h"
-#include "sockaddr.h"

 #include <msgpack.hpp>

@@ -1,5 +1,5 @@
 project('opendht', 'c', 'cpp',
-    version: '3.1.4',
+    version: '2.5.5',
    default_options: [
        'cpp_std=c++17',
        'warning_level=3'
@@ -11,7 +11,6 @@ msgpack = dependency('msgpack-cxx', required : false)
 argon2 = dependency('libargon2')
 openssl = dependency('openssl', required: get_option('proxy_client'))
 jsoncpp = dependency('jsoncpp', required: get_option('proxy_client'))
-fmt = dependency('fmt')

 dirs=[]
 if host_machine.system() == 'freebsd'
@@ -20,7 +19,7 @@ elif host_machine.system() == 'darwin'
    dirs+='/opt/homebrew/lib'
 endif
 http_parser = meson.get_compiler('c').find_library('http_parser', dirs: dirs, required: get_option('proxy_client'))
-deps = [fmt, gnutls, nettle, msgpack, argon2, openssl, jsoncpp, http_parser]
+deps = [gnutls, nettle, msgpack, argon2, openssl, jsoncpp, http_parser]

 add_project_arguments('-DMSGPACK_NO_BOOST', language : 'cpp')
 add_project_arguments(['-Wno-return-type','-Wno-deprecated','-Wnon-virtual-dtor','-pedantic-errors','-fvisibility=hidden'], language : 'cpp')
@@ -78,17 +77,7 @@ if get_option('tools').enabled()
    dhtnode = executable('dhtnode', 'tools/dhtnode.cpp',
        include_directories : opendht_interface_inc,
        link_with : opendht,
-        dependencies : [readline, msgpack, fmt],
-        install : true)
-    dhtchat = executable('dhtchat', 'tools/dhtchat.cpp',
-        include_directories : opendht_interface_inc,
-        link_with : opendht,
-        dependencies : [readline, msgpack, fmt],
-        install : true)
-    dhtscanner = executable('dhtscanner', 'tools/dhtscanner.cpp',
-        include_directories : opendht_interface_inc,
-        link_with : opendht,
-        dependencies : [readline, msgpack, fmt],
+        dependencies : [readline, msgpack],
        install : true)
    if http_parser.found()
        durl = executable('durl', 'tools/durl.cpp',
@@ -5,7 +5,7 @@
 # distutils: libraries = opendht gnutls
 # cython: language_level=3
 #
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author(s): Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
 #            Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
@@ -42,7 +42,7 @@ cimport opendht_cpp as cpp

 import threading

-cdef inline void lookup_callback(cpp.vector[cpp.shared_ptr[cpp.IndexValue]]* values, cpp.Prefix* p, void *user_data) noexcept with gil:
+cdef inline void lookup_callback(cpp.vector[cpp.shared_ptr[cpp.IndexValue]]* values, cpp.Prefix* p, void *user_data) with gil:
    cbs = <object>user_data
    if 'lookup' in cbs and cbs['lookup']:
        vals = []
@@ -52,13 +52,13 @@ cdef inline void lookup_callback(cpp.vector[cpp.shared_ptr[cpp.IndexValue]]* val
            vals.append(v)
        cbs['lookup'](vals, p.toString())

-cdef inline void shutdown_callback(void* user_data) noexcept with gil:
+cdef inline void shutdown_callback(void* user_data) with gil:
    cbs = <object>user_data
    if 'shutdown' in cbs and cbs['shutdown']:
        cbs['shutdown']()
    ref.Py_DECREF(cbs)

-cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) noexcept with gil:
+cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) with gil:
    cbs = <object>user_data
    cb = cbs['get']
    f = cbs['filter'] if 'filter' in cbs else None
@@ -66,7 +66,7 @@ cdef inline bool get_callback(shared_ptr[cpp.Value] value, void *user_data) noex
    pv._value = value
    return cb(pv) if not f or f(pv) else True

-cdef inline bool value_callback(shared_ptr[cpp.Value] value, bool expired, void *user_data) noexcept with gil:
+cdef inline bool value_callback(shared_ptr[cpp.Value] value, bool expired, void *user_data) with gil:
    cbs = <object>user_data
    cb = cbs['valcb']
    f = cbs['filter'] if 'filter' in cbs else None
@@ -74,7 +74,7 @@ cdef inline bool value_callback(shared_ptr[cpp.Value] value, bool expired, void
    pv._value = value
    return cb(pv, expired) if not f or f(pv) else True

-cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* nodes, void *user_data) noexcept with gil:
+cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* nodes, void *user_data) with gil:
    node_ids = []
    for n in deref(nodes):
        h = NodeEntry()
@@ -86,7 +86,7 @@ cdef inline void done_callback(bool done, cpp.vector[shared_ptr[cpp.Node]]* node
        cbs['done'](done, node_ids)
    ref.Py_DECREF(cbs)

-cdef inline void done_callback_simple(bool done, void *user_data) noexcept with gil:
+cdef inline void done_callback_simple(bool done, void *user_data) with gil:
    cbs = <object>user_data
    if 'done' in cbs and cbs['done']:
        cbs['done'](done)
@@ -158,15 +158,6 @@ cdef class SockAddr(object):
        return self.toString().decode()
    def __repr__(self):
        return "<%s '%s'>" % (self.__class__.__name__, str(self))
-    @staticmethod
-    def resolve(str host, str service=None):
-        vals = []
-        result = cpp.SockAddr.resolve(host.encode(), service.encode() if service else b'')
-        for val in result:
-            a = SockAddr()
-            a._addr = val
-            vals.append(a)
-        return vals

 cdef class Node(_WithID):
    cdef shared_ptr[cpp.Node] _node
@@ -462,31 +453,11 @@ cdef class Identity(object):
            k._key = self._id.first
            return k

-def aesEncrypt(bytes data, str password) -> bytes :
-    cdef size_t d_len = len(data)
-    cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>data
-    cdef cpp.Blob indat
-    indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
-    cdef cpp.Blob encrypted = cpp.aesEncrypt(indat, password.encode())
-    cdef char* encrypted_c_str = <char *>encrypted.data()
-    cdef Py_ssize_t length = encrypted.size()
-    return encrypted_c_str[:length]
-
-def aesDecrypt(bytes data, str password) -> bytes :
-    cdef size_t d_len = len(data)
-    cdef cpp.uint8_t* d_ptr = <cpp.uint8_t*>data
-    cdef cpp.Blob indat
-    indat.assign(d_ptr, <cpp.uint8_t*>(d_ptr + d_len))
-    cdef cpp.Blob decrypted = cpp.aesDecrypt(indat, password.encode())
-    cdef char* decrypted_c_str = <char *>decrypted.data()
-    cdef Py_ssize_t length = decrypted.size()
-    return decrypted_c_str[:length]
-
 cdef class DhtConfig(object):
    cdef cpp.DhtRunnerConfig _config
    def __init__(self):
        self._config = cpp.DhtRunnerConfig()
-        self._config.threaded = True
+        self._config.threaded = True;
    def setIdentity(self, Identity id):
        self._config.dht_config.id = id._id
    def setBootstrapMode(self, bool bootstrap):
@@ -500,19 +471,6 @@ cdef class DhtConfig(object):
    def setRateLimit(self, ssize_t max_req_per_sec, ssize_t max_peer_req_per_sec):
        self._config.dht_config.node_config.max_req_per_sec = max_req_per_sec
        self._config.dht_config.node_config.max_peer_req_per_sec = max_peer_req_per_sec
-    def setProxyInfo(self, str proxy_server, str push_node_id="", str push_token="", str push_topic="", str push_platform="", Certificate server_ca = Certificate()):
-        self._config.proxy_server = proxy_server.encode()
-        self._config.push_node_id = push_node_id.encode()
-        self._config.push_token = push_token.encode()
-        self._config.push_topic = push_topic.encode()
-        self._config.push_platform = push_platform.encode()
-        self._config.server_ca = server_ca._cert
-    def setPeerDiscovery(self, bool peer_discovery, bool peer_publish):
-        self._config.peer_discovery = peer_discovery
-        self._config.peer_publish = peer_publish
-    def setBound(self, SockAddr bind4, SockAddr bind6):
-        self._config.bind4 = bind4._addr
-        self._config.bind6 = bind6._addr

 cdef class DhtRunner(_WithID):
    cdef cpp.shared_ptr[cpp.DhtRunner] thisptr
@@ -629,8 +587,7 @@ cdef class DhtRunner(_WithID):
                while pending > 0:
                    lock.wait()
            return res
-
-    def put(self, InfoHash key, Value val, done_cb=None, permanent=False):
+    def put(self, InfoHash key, Value val, done_cb=None):
        """Publish a new value on the DHT at key.

        key     -- the DHT key where to put the value
@@ -640,7 +597,7 @@ cdef class DhtRunner(_WithID):
        if done_cb:
            cb_obj = {'done':done_cb}
            ref.Py_INCREF(cb_obj)
-            self.thisptr.get().put(key._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj), cpp.time_point.max(), permanent)
+            self.thisptr.get().put(key._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj))
        else:
            lock = threading.Condition()
            pending = 0
@@ -657,76 +614,6 @@ cdef class DhtRunner(_WithID):
                while pending > 0:
                    lock.wait()
            return ok
-
-    def putSigned(self, InfoHash key, Value val, done_cb=None, permanent=False):
-        if done_cb:
-            cb_obj = {'done':done_cb}
-            ref.Py_INCREF(cb_obj)
-            self.thisptr.get().putSigned(key._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent)
-        else:
-            lock = threading.Condition()
-            pending = 0
-            ok = False
-            def tmp_done(ok_ret, nodes):
-                nonlocal pending, ok, lock
-                with lock:
-                    ok = ok_ret
-                    pending -= 1
-                    lock.notify()
-            with lock:
-                pending += 1
-                self.putSigned(key, val, done_cb=tmp_done)
-                while pending > 0:
-                    lock.wait()
-            return ok
-
-    def putEncrypted(self, InfoHash key, InfoHash to, Value val, done_cb=None, bool permanent=False):
-        if done_cb:
-            cb_obj = {'done':done_cb}
-            ref.Py_INCREF(cb_obj)
-            self.thisptr.get().putEncrypted(key._infohash, to._infohash, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent)
-        else:
-            lock = threading.Condition()
-            pending = 0
-            ok = False
-            def tmp_done(ok_ret, nodes):
-                nonlocal pending, ok, lock
-                with lock:
-                    ok = ok_ret
-                    pending -= 1
-                    lock.notify()
-            with lock:
-                pending += 1
-                self.putEncrypted(key, to, val, done_cb=tmp_done, permanent=permanent)
-                while pending > 0:
-                    lock.wait()
-            return ok
-
-    def putEncrypted(self, InfoHash key, PublicKey to, Value val, done_cb=None, bool permanent=False):
-        if done_cb:
-            cb_obj = {'done':done_cb}
-            ref.Py_INCREF(cb_obj)
-            self.thisptr.get().putEncrypted(key._infohash, to._key, val._value, cpp.bindDoneCb(done_callback, <void*>cb_obj), permanent)
-        else:
-            lock = threading.Condition()
-            pending = 0
-            ok = False
-            def tmp_done(ok_ret, nodes):
-                nonlocal pending, ok, lock
-                with lock:
-                    ok = ok_ret
-                    pending -= 1
-                    lock.notify()
-            with lock:
-                pending += 1
-                self.putEncrypted(key, to, val, done_cb=tmp_done, permanent=permanent)
-                while pending > 0:
-                    lock.wait()
-            return ok
-
-    def cancelPut(self, InfoHash key, Value val):
-        self.thisptr.get().cancelPut(key._infohash, val._value)
-
    def listen(self, InfoHash key, value_cb):
        t = ListenToken()
        t._h = key._infohash
@@ -1,4 +1,4 @@
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -21,13 +21,12 @@ from libcpp.string cimport string
 from libcpp.vector cimport vector
 from libcpp.utility cimport pair
 from libcpp.map cimport map
-from libcpp.memory cimport shared_ptr, make_shared
 from libc.string cimport const_char, const_uchar

 ctypedef uint16_t in_port_t
 ctypedef unsigned short int sa_family_t;

-cdef extern from "<chrono>" namespace "std::chrono" nogil:
+cdef extern from "<iostream>" namespace "std::chrono" nogil:
    cdef cppclass duration[ulong]:
        duration() except +

@@ -35,6 +34,16 @@ cdef extern from "<chrono>" namespace "std::chrono" nogil:
        duration seconds(uint64_t) except +
        duration seconds()

+cdef extern from "<memory>" namespace "std" nogil:
+    cdef cppclass shared_ptr[T]:
+        shared_ptr() except +
+        shared_ptr(T*) except +
+        T* get()
+        T operator*()
+        bool operator bool() const
+        void reset(T*)
+    shared_ptr[T] make_shared[T](...) except +
+
 cdef extern from "<functional>" namespace "std" nogil:
    cdef cppclass hash[T]:
        hash() except +
@@ -50,13 +59,6 @@ cdef extern from "<future>" namespace "std" nogil:
        bool valid() const
        shared_future[T] share()

-cdef extern from "opendht/utils.h" namespace "dht":
-    cdef cppclass time_point:
-        @staticmethod
-        time_point min() const
-        @staticmethod
-        time_point max() const
-
 cdef extern from "opendht/infohash.h" namespace "dht":
    cdef cppclass InfoHash:
        InfoHash() except +
@@ -86,16 +88,12 @@ cdef extern from "opendht/sockaddr.h" namespace "dht":
        bool isLoopback() const
        bool isPrivate() const
        bool isUnspecified() const
-        @staticmethod
-        vector[SockAddr] resolve(string host, string service) except +

 ctypedef vector[uint8_t] Blob

 cdef extern from "opendht/crypto.h" namespace "dht::crypto":
    ctypedef pair[shared_ptr[PrivateKey], shared_ptr[Certificate]] Identity
    cdef Identity generateIdentity(string name, Identity ca, unsigned bits)
-    cdef Blob aesEncrypt(Blob data, string password) except +
-    cdef Blob aesDecrypt(Blob encrypted, string password) except +

    cdef cppclass PrivateKey:
        PrivateKey()
@@ -241,18 +239,6 @@ cdef extern from "opendht/dhtrunner.h" namespace "dht":
        cppclass Config:
            SecureDhtConfig dht_config
            bool threaded
-            string proxy_server
-            string push_node_id
-            string push_token
-            string push_topic
-            string push_platform
-            bool peer_discovery
-            bool peer_publish
-            shared_ptr[Certificate] server_ca
-            Identity client_identity
-            SockAddr bind4
-            SockAddr bind6
-
        InfoHash getId() const
        InfoHash getNodeId() const
        void bootstrap(const_char*, const_char*)
@@ -268,11 +254,7 @@ cdef extern from "opendht/dhtrunner.h" namespace "dht":
        string getRoutingTablesLog(sa_family_t af) const
        string getSearchesLog(sa_family_t af) const
        void get(InfoHash key, GetCallback get_cb, DoneCallback done_cb, nullptr_t f, Where w)
-        void put(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb, time_point created, bool permanent)
-        void putSigned(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb, bool permanent) 
-        void putEncrypted(InfoHash key, InfoHash to, shared_ptr[Value] val, DoneCallback done_cb, bool permanent)
-        void putEncrypted(InfoHash key, shared_ptr[PublicKey] to, shared_ptr[Value] val, DoneCallback done_cb, bool permanent)
-        void cancelPut(InfoHash key, shared_ptr[Value] val)
+        void put(InfoHash key, shared_ptr[Value] val, DoneCallback done_cb)
        ListenToken listen(InfoHash key, ValueCallback get_cb)
        void cancelListen(InfoHash key, SharedListenToken token)
        vector[unsigned] getNodeMessageStats(bool i)
@@ -1,4 +1,4 @@
-# Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+# Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 # Author: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
@@ -32,14 +32,17 @@ setup(name="opendht",
      author="Adrien Béraud, Guillaume Roguez, Simon Désaulniers",
      license="GPLv3",
      classifiers=[
-          'Development Status :: 5 - Production/Stable',
+          'Development Status :: 3 - Alpha',
          'Intended Audience :: Developers',
          'Topic :: Software Development :: Libraries :: Python Modules',
          'Topic :: System :: Distributed Computing',
          'Topic :: System :: Networking'
          'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)',
          'Programming Language :: Python :: 3',
-          'Programming Language :: Python :: 3.7',
+          'Programming Language :: Python :: 3.2',
+          'Programming Language :: Python :: 3.3',
+          'Programming Language :: Python :: 3.4',
+          'Programming Language :: Python :: 3.5',
      ],
      cmdclass = { 'build_ext' : build_ext },
      ext_modules = cythonize(Extension(
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+# Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>
 #
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# Copyright (C) 2015-2023 Savoir-Faire Linux Inc.
+# Copyright (C) 2015-2022 Savoir-Faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #            Simon Désaulniers <sim.desaulniers@gmail.com>

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-# Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+# Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 # Author(s): Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2016-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2016-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright (c) 2015-2023 Savoir-faire Linux Inc.
+# Copyright (c) 2015-2022 Savoir-faire Linux Inc.
 # Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 #
 # This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -45,7 +45,6 @@ nobase_include_HEADERS = \
        ../include/opendht/scheduler.h \
        ../include/opendht/rate_limiter.h \
        ../include/opendht/utils.h \
-        ../include/opendht/sockaddr.h \
        ../include/opendht/infohash.h \
        ../include/opendht/node.h \
        ../include/opendht/value.h \
@@ -54,7 +53,7 @@ nobase_include_HEADERS = \
        ../include/opendht/dhtrunner.h \
        ../include/opendht/default_types.h \
        ../include/opendht/log.h \
-        ../include/opendht/logger.h \
+        ../include/opendht/log_enable.h \
        ../include/opendht/network_utils.h \
        ../include/opendht/rng.h \
        ../include/opendht/thread_pool.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
 *
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -18,7 +18,7 @@

 #include "os_cert.h"

-#include "logger.h"
+#include "log_enable.h"

 #ifdef _WIN32
 #include <windows.h>
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -18,7 +18,7 @@

 #pragma once

-#include "logger.h"
+#include "log_enable.h"

 #include <memory>

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
 *
@@ -103,11 +103,13 @@ Blob aesEncrypt(const uint8_t* data, size_t data_length, const Blob& key)
    return ret;
 }

-Blob aesEncrypt(const Blob& data, std::string_view password)
+Blob aesEncrypt(const Blob& data, const std::string& password)
 {
    Blob salt;
    Blob key = stretchKey(password, salt, 256 / 8);
-    return aesBuildEncrypted(aesEncrypt(data, key), salt);
+    Blob encrypted = aesEncrypt(data, key);
+    encrypted.insert(encrypted.begin(), salt.begin(), salt.end());
+    return encrypted;
 }

 Blob aesDecrypt(const uint8_t* data, size_t data_length, const Blob& key)
@@ -150,44 +152,16 @@ Blob aesDecrypt(const uint8_t* data, size_t data_length, const Blob& key)
    return ret;
 }

-Blob aesDecrypt(const uint8_t* data, size_t data_length, std::string_view password)
+Blob aesDecrypt(const uint8_t* data, size_t data_len, const std::string& password)
 {
-    return aesDecrypt(
-        aesGetEncrypted(data, data_length),
-        aesGetKey(data, data_length, password)
-    );
-}
-
-Blob aesGetSalt(const uint8_t* data, size_t data_length)
-{
-    if (data_length <= PASSWORD_SALT_LENGTH)
+    if (data_len <= PASSWORD_SALT_LENGTH)
        throw DecryptError("Wrong data size");
-    return Blob {data, data+PASSWORD_SALT_LENGTH};
+    Blob salt {data, data+PASSWORD_SALT_LENGTH};
+    Blob key = stretchKey(password, salt, 256/8);
+    return aesDecrypt(data+PASSWORD_SALT_LENGTH, data_len - PASSWORD_SALT_LENGTH, key);
 }

-std::string_view aesGetEncrypted(const uint8_t* data, size_t data_length)
-{
-    if (data_length <= PASSWORD_SALT_LENGTH)
-        throw DecryptError("Wrong data size");
-    return std::string_view((const char*)(data+PASSWORD_SALT_LENGTH), data_length - PASSWORD_SALT_LENGTH);
-}
-
-Blob aesBuildEncrypted(const uint8_t* data, size_t data_length, const Blob& salt)
-{
-    Blob ret;
-    ret.reserve(data_length + salt.size());
-    ret.insert(ret.end(), salt.begin(), salt.end());
-    ret.insert(ret.end(), data, data + data_length);
-    return ret;
-}
-
-Blob aesGetKey(const uint8_t* data, size_t data_length, std::string_view password)
-{
-    Blob salt = aesGetSalt(data, data_length);
-    return stretchKey(password, salt, 256/8);
-}
-
-Blob stretchKey(std::string_view password, Blob& salt, size_t key_length)
+Blob stretchKey(const std::string& password, Blob& salt, size_t key_length)
 {
    if (salt.empty()) {
        salt.resize(PASSWORD_SALT_LENGTH);
@@ -1158,26 +1132,6 @@ saveIdentity(const Identity& id, const std::string& path, const std::string& pri
    }
 }

-Identity 
-loadIdentity(const std::string &path,const std::string &privkey_password)
-{
-    std::ifstream pkStream(path + ".pem", std::ios::in | std::ios::binary);
-    std::vector<uint8_t> pkContent((std::istreambuf_iterator<char>(pkStream)),
-                                    std::istreambuf_iterator<char>());
-    auto key = std::make_shared<PrivateKey>(pkContent, privkey_password);
-    pkStream.close();
-    // Create a certificate
-    gnutls_x509_crt_t gnuCert;
-    if (gnutls_x509_crt_init(&gnuCert) != GNUTLS_E_SUCCESS)
-        throw std::runtime_error("Failed to initialize gnutls certificate struct");
-    gnutls_datum_t crtContent;
-    // Read the certificate file
-    gnutls_load_file((path + ".crt").c_str(), &crtContent);
-    gnutls_x509_crt_import(gnuCert, &crtContent, GNUTLS_X509_FMT_PEM);
-    auto cert = std::make_shared<Certificate>(gnuCert);
-    return {std::move(key), std::move(cert)};
-}
-
 void
 setValidityPeriod(gnutls_x509_crt_t cert, int64_t validity)
 {
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -54,14 +54,7 @@ DhtMessage::ServiceFilter(const std::string& s)

 std::ostream& operator<< (std::ostream& s, const IpServiceAnnouncement& v)
 {
-    if (v.addr) {
-        s << "Peer: ";
-        s << "port " << v.getPort();
-        char hbuf[NI_MAXHOST];
-        if (getnameinfo(v.addr.get(), v.addr.getLength(), hbuf, sizeof(hbuf), nullptr, 0, NI_NUMERICHOST) == 0) {
-            s << " addr " << std::string(hbuf, strlen(hbuf));
-        }
-    }
+    s << "Peer: " << v.addr;
    return s;
 }

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -24,6 +24,8 @@
 #include "utils.h"

 #include <http_parser.h>
+
+#include <asio/ip/address.hpp>
 #include <deque>


@@ -108,18 +110,17 @@ DhtProxyClient::DhtProxyClient() {}

 DhtProxyClient::DhtProxyClient(
        std::shared_ptr<dht::crypto::Certificate> serverCA, dht::crypto::Identity clientIdentity,
-        std::function<void()> signal, const std::string& serverHost,
+        std::shared_ptr<asio::io_context::strand> strand, const std::string& serverHost,
        const std::string& pushClientId, std::shared_ptr<dht::Logger> logger)
    : DhtInterface(logger)
    , proxyUrl_(serverHost)
    , clientIdentity_(clientIdentity), serverCertificate_(serverCA)
    , pushClientId_(pushClientId), pushSessionId_(getRandomSessionId())
-    , loopSignal_(signal)
+    , strand_(strand)
    , jsonReader_(Json::CharReaderBuilder{}.newCharReader())
 {
-    localAddrv4_.setFamily(AF_INET);
-    localAddrv6_.setFamily(AF_INET6);
-
+    /*localAddrv4_.setFamily(AF_INET);
+    localAddrv6_.setFamily(AF_INET6);*/
    jsonBuilder_["commentStyle"] = "None";
    jsonBuilder_["indentation"] = "";
    if (logger_) {
@@ -131,13 +132,13 @@ DhtProxyClient::DhtProxyClient(
                       clientIdentity_.second->toString(false/*chain*/).c_str());
    }
    // run http client
-    httpClientThread_ = std::thread([this](){
+    /*httpClientThread_ = std::thread([this](){
        try {
            if (logger_)
                logger_->d("[proxy:client] starting io_context");
-            // Ensures the httpContext_ won't run out of work
-            auto work = asio::make_work_guard(httpContext_);
-            httpContext_.run();
+            // Ensures the context() won't run out of work
+            auto work = asio::make_work_guard(context());
+            context().run();
            if (logger_)
                logger_->d("[proxy:client] http client io_context stopped");
        }
@@ -145,7 +146,7 @@ DhtProxyClient::DhtProxyClient(
            if (logger_)
                logger_->e("[proxy:client] run error: %s", ex.what());
        }
-    });
+    });*/
    if (!proxyUrl_.empty())
        startProxy();
 }
@@ -159,12 +160,10 @@ DhtProxyClient::startProxy()
    if (logger_)
        logger_->d("[proxy:client] start proxy with %s", proxyUrl_.c_str());

-    nextProxyConfirmationTimer_ = std::make_unique<asio::steady_timer>(httpContext_, std::chrono::steady_clock::now());
+    nextProxyConfirmationTimer_ = std::make_unique<asio::steady_timer>(context(), std::chrono::steady_clock::now());
    nextProxyConfirmationTimer_->async_wait(std::bind(&DhtProxyClient::handleProxyConfirm, this, std::placeholders::_1));

-    listenerRestartTimer_ = std::make_unique<asio::steady_timer>(httpContext_);
-
-    loopSignal_();
+    listenerRestartTimer_ = std::make_unique<asio::steady_timer>(context());
 }

 void
@@ -203,8 +202,8 @@ DhtProxyClient::stop()
            for (auto& request : requests_)
                request.second->cancel();
        }
-        if (not httpContext_.stopped())
-            httpContext_.stop();
+        if (not context().stopped())
+            context().stop();
        if (httpClientThread_.joinable())
            httpClientThread_.join();
        requests_.clear();
@@ -286,21 +285,6 @@ DhtProxyClient::isRunning(sa_family_t af) const
    }
 }

-time_point
-DhtProxyClient::periodic(const uint8_t*, size_t, SockAddr, const time_point& /*now*/)
-{
-    // Exec all currently stored callbacks
-    decltype(callbacks_) callbacks;
-    {
-        std::lock_guard<std::mutex> lock(lockCallbacks_);
-        callbacks = std::move(callbacks_);
-    }
-    for (auto& callback : callbacks)
-        callback();
-    callbacks.clear();
-    return time_point::max();
-}
-
 void
 DhtProxyClient::setHeaderFields(http::Request& request){
    request.set_header_field(restinio::http_field_t::accept, "*/*");
@@ -351,15 +335,11 @@ DhtProxyClient::get(const InfoHash& key, GetCallback cb, DoneCallback donecb, Va
                        values.emplace_back(std::move(value));
                }
                if (not values.empty() and cb) {
-                    {
-                        std::lock_guard<std::mutex> lock(lockCallbacks_);
-                        callbacks_.emplace_back([opstate, cb, values = std::move(values)](){
-                            if (not opstate->stop.load() and not cb(values)){
-                                opstate->stop.store(true);
-                            }
-                        });
-                    }
-                    loopSignal_();
+                    context().post([opstate, cb, values = std::move(values)](){
+                        if (not opstate->stop.load() and not cb(values)){
+                            opstate->stop.store(true);
+                        }
+                    });
                }
            } catch(const std::exception& e) {
                if (logger_)
@@ -376,14 +356,10 @@ DhtProxyClient::get(const InfoHash& key, GetCallback cb, DoneCallback donecb, Va
                    opFailed();
            }
            if (donecb) {
-                {
-                    std::lock_guard<std::mutex> lock(lockCallbacks_);
-                    callbacks_.emplace_back([donecb, opstate](){
-                        donecb(opstate->ok, {});
-                        opstate->stop.store(true);
-                    });
-                }
-                loopSignal_();
+                context().post([donecb, opstate](){
+                    donecb(opstate->ok, {});
+                    opstate->stop.store(true);
+                });
            }
            if (not isDestroying_) {
                std::lock_guard<std::mutex> l(requestLock_);
@@ -419,7 +395,7 @@ DhtProxyClient::put(const InfoHash& key, Sp<Value> val, DoneCallback cb, time_po
        auto& search = searches_[key];
        if (val->id) {
            auto id = val->id;
-            auto refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_, proxy::OP_TIMEOUT - proxy::OP_MARGIN);
+            auto refreshPutTimer = std::make_unique<asio::steady_timer>(context(), proxy::OP_TIMEOUT - proxy::OP_MARGIN);
            refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, id));
            search.puts.erase(id);
            search.puts.emplace(std::piecewise_construct,
@@ -433,12 +409,10 @@ DhtProxyClient::put(const InfoHash& key, Sp<Value> val, DoneCallback cb, time_po
        if (ok)
            *ok = result;
        if (cb) {
-            std::lock_guard<std::mutex> lock(lockCallbacks_);
-            callbacks_.emplace_back([cb, result](){
+            context().post([cb, result](){
                cb(result, {});
            });
        }
-        loopSignal_();
    }, created, permanent);
 }

@@ -475,10 +449,10 @@ DhtProxyClient::buildRequest(const std::string& target)
    auto resolver = resolver_;
    l.unlock();
    if (not resolver)
-        resolver = std::make_shared<http::Resolver>(httpContext_, proxyUrl_, logger_);
+        resolver = std::make_shared<http::Resolver>(context(), proxyUrl_, logger_);
    auto request = target.empty()
-        ? std::make_shared<http::Request>(httpContext_, resolver)
-        : std::make_shared<http::Request>(httpContext_, resolver, target);
+        ? std::make_shared<http::Request>(context(), resolver)
+        : std::make_shared<http::Request>(context(), resolver, target);
    if (serverCertificate_)
        request->set_certificate_authority(serverCertificate_);
    if (clientIdentity_.first and clientIdentity_.second)
@@ -491,7 +465,7 @@ void
 DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallbackSimple cb, time_point /*created*/, bool permanent)
 {
    if (logger_)
-        logger_->debug("[proxy:client] [put] [search {}] executing for {}", key, val->toString());
+        logger_->d("[proxy:client] [put] [search %s] executing for %s", key.to_c_str(), val->toString().c_str());

    try {
        auto request = buildRequest("/key/" + key.toString());
@@ -529,7 +503,7 @@ DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallbackSimple cb,
                            auto it = search.pendingPuts.find(val);
                            if (it != search.pendingPuts.end()) {
                                auto sok = std::make_shared<std::atomic_bool>(ok);
-                                auto refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_, proxy::OP_TIMEOUT - proxy::OP_MARGIN);
+                                auto refreshPutTimer = std::make_unique<asio::steady_timer>(context(), proxy::OP_TIMEOUT - proxy::OP_MARGIN);
                                refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, id));
                                search.puts.emplace(std::piecewise_construct,
                                    std::forward_as_tuple(id),
@@ -539,12 +513,12 @@ DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallbackSimple cb,
                        }
                    } else {
                        if (logger_)
-                            logger_->error("[proxy:client] [put] failed to parse value from server: {}", err);
+                            logger_->e("[proxy:client] [status] failed to parse value from  server", response.status_code);
                    }
                }
            } else {
                if (logger_)
-                    logger_->error("[proxy:client] [put] failed with code={:d}", response.status_code);
+                    logger_->e("[proxy:client] [status] failed with code=%i", response.status_code);
                if (not response.aborted and response.status_code == 0)
                    opFailed();
            }
@@ -563,8 +537,7 @@ DhtProxyClient::doPut(const InfoHash& key, Sp<Value> val, DoneCallbackSimple cb,
    }
    catch (const std::exception &e){
        if (logger_)
-            logger_->error("[proxy:client] [put {}] error: {}", key, e.what());
-        opFailed();
+            logger_->e("[proxy:client] [put %s] error: %s", key.to_c_str(), e.what());
    }
 }

@@ -637,7 +610,7 @@ DhtProxyClient::getProxyInfos()
    if (logger_)
        logger_->d("[proxy:client] [status] sending request");

-    auto resolver = std::make_shared<http::Resolver>(httpContext_, proxyUrl_, logger_);
+    auto resolver = std::make_shared<http::Resolver>(context(), proxyUrl_, logger_);
    queryProxyInfo(infoState, resolver, AF_INET);
    queryProxyInfo(infoState, resolver, AF_INET6);
    std::lock_guard<std::mutex> l(resolverLock_);
@@ -650,7 +623,7 @@ DhtProxyClient::queryProxyInfo(const Sp<InfoState>& infoState, const Sp<http::Re
    if (logger_)
        logger_->d("[proxy:client] [status] query ipv%i info", family == AF_INET ? 4 : 6);
    try {
-        auto request = std::make_shared<http::Request>(httpContext_, resolver, family);
+        auto request = std::make_shared<http::Request>(context(), resolver, family);
        if (serverCertificate_)
            request->set_certificate_authority(serverCertificate_);
        auto reqid = request->id();
@@ -716,41 +689,33 @@ DhtProxyClient::onProxyInfos(const Json::Value& proxyInfos, const sa_family_t fa
        if (logger_)
            logger_->e("[proxy:client] [info] request failed for %s", family == AF_INET ? "ipv4" : "ipv6");
        status = NodeStatus::Disconnected;
-        if (pubAddress) {
+        if (pubAddress != SockAddr{}) {
            pubAddress = {};
            ipChanged = true;
        }
    } else {
        if (logger_)
-            logger_->debug("[proxy:client] [info] got proxy reply for {}",
+            logger_->d("[proxy:client] [info] got proxy reply for %s",
                       family == AF_INET ? "ipv4" : "ipv6");
        try {
            myid = InfoHash(proxyInfos["node_id"].asString());
            stats4_ = NodeStats(proxyInfos["ipv4"]);
            stats6_ = NodeStats(proxyInfos["ipv6"]);
            auto publicIp = parsePublicAddress(proxyInfos["public_ip"]);
-            ipChanged = pubAddress && pubAddress.toString() != publicIp.toString();
-            bool pub = ipChanged || !pubAddress;
+            ipChanged = pubAddress != SockAddr{} && pubAddress != publicIp;
            pubAddress = publicIp;

            if (proxyInfos.isMember("local_ip")) {
                std::string localIp = proxyInfos["local_ip"].asString();
-                if (localAddress.toString() != localIp) {
-                    localAddress.setAddress(localIp.c_str());
-                    ipChanged = (bool)localAddress;
+                auto localAddr = asio::ip::make_address(localIp);
+                if (localAddr != localAddress.address()) {
+                    localAddress = SockAddr(localAddr, localAddress.port());
+                    ipChanged = localAddress != SockAddr{};
                }
-            }
-
-            if (pub && publicAddressChangedCb_) {
-                std::vector<SockAddr> addresses;
-                if (publicAddressV4_)
-                    addresses.emplace_back(publicAddressV4_);
-                if (publicAddressV6_)
-                    addresses.emplace_back(publicAddressV6_);
-                std::lock_guard<std::mutex> lock(lockCallbacks_);
-                callbacks_.emplace_back([cb=publicAddressChangedCb_, addresses = std::move(addresses)](){
-                    cb(std::move(addresses));
-                });
+                /*if (localAddress.toString() != localIp) {
+                    localAddress.setAddress(localIp.c_str());
+                    ipChanged = localAddress != SockAddr{};
+                }*/
            }

            if (!ipChanged && stats4_.good_nodes + stats6_.good_nodes)
@@ -766,14 +731,16 @@ DhtProxyClient::onProxyInfos(const Json::Value& proxyInfos, const sa_family_t fa
        }
    }
    auto newStatus = std::max(statusIpv4_, statusIpv6_);
+    if (newStatus != oldStatus) {
+        onStateChanged();
+    }
    if (newStatus == NodeStatus::Connected) {
        if (oldStatus == NodeStatus::Disconnected || oldStatus == NodeStatus::Connecting || launchConnectedCbs_) {
            launchConnectedCbs_ = false;
            listenerRestartTimer_->expires_at(std::chrono::steady_clock::now());
            listenerRestartTimer_->async_wait(std::bind(&DhtProxyClient::restartListeners, this, std::placeholders::_1));
            if (not onConnectCallbacks_.empty()) {
-                std::lock_guard<std::mutex> lock(lockCallbacks_);
-                callbacks_.emplace_back([cbs = std::move(onConnectCallbacks_)]() mutable {
+                context().post([cbs = std::move(onConnectCallbacks_)]() mutable {
                    while (not cbs.empty()) {
                        cbs.front()();
                        cbs.pop();
@@ -791,18 +758,25 @@ DhtProxyClient::onProxyInfos(const Json::Value& proxyInfos, const sa_family_t fa
        nextProxyConfirmationTimer_->expires_at(next);
        nextProxyConfirmationTimer_->async_wait(std::bind(&DhtProxyClient::handleProxyConfirm, this, std::placeholders::_1));
    }
-    l.unlock();
-    loopSignal_();
 }

+void
+DhtProxyClient::onStateChanged(){
+    for (auto& cb : onStateChangeCallbacks_)
+        cb(DhtNodeStatus{statusIpv4_, statusIpv6_});
+}
+
+
 SockAddr
 DhtProxyClient::parsePublicAddress(const Json::Value& val)
 {
    auto public_ip = val.asString();
    auto hostAndService = splitPort(public_ip);
-    auto sa = SockAddr::resolve(hostAndService.first);
-    if (sa.empty()) return {};
-    return sa.front().getMappedIPv4();
+    auto sa = asio::ip::make_address(hostAndService.first);
+    if (sa == asio::ip::address{}) return {};
+    if (sa.is_v6() and sa.to_v6().is_v4_mapped())
+        return SockAddr(asio::ip::make_address_v4(asio::ip::v4_mapped, sa.to_v6()), 0);
+    return SockAddr(sa, 0);
 }

 std::vector<SockAddr>
@@ -810,8 +784,8 @@ DhtProxyClient::getPublicAddress(sa_family_t family)
 {
    std::lock_guard<std::mutex> l(lockCurrentProxyInfos_);
    std::vector<SockAddr> result;
-    if (publicAddressV6_ && family != AF_INET) result.emplace_back(publicAddressV6_);
-    if (publicAddressV4_ && family != AF_INET6) result.emplace_back(publicAddressV4_);
+    if (publicAddressV6_ != SockAddr{} && family != AF_INET) result.emplace_back(publicAddressV6_);
+    if (publicAddressV4_ != SockAddr{} && family != AF_INET6) result.emplace_back(publicAddressV4_);
    return result;
 }

@@ -871,7 +845,7 @@ DhtProxyClient::listen(const InfoHash& key, ValueCallback cb, Value::Filter filt
             * (if the proxy crash for any reason)
             */
            if (!l->second.refreshSubscriberTimer)
-                l->second.refreshSubscriberTimer = std::make_unique<asio::steady_timer>(httpContext_);
+                l->second.refreshSubscriberTimer = std::make_unique<asio::steady_timer>(context());
            l->second.refreshSubscriberTimer->expires_at(std::chrono::steady_clock::now() +
                                                         proxy::OP_TIMEOUT - proxy::OP_MARGIN);
            l->second.refreshSubscriberTimer->async_wait(std::bind(&DhtProxyClient::handleResubscribe, this,
@@ -938,7 +912,7 @@ DhtProxyClient::cancelListen(const InfoHash& key, size_t gtoken)

    // define real cancel listen only once
    if (not it->second.opExpirationTimer)
-        it->second.opExpirationTimer = std::make_unique<asio::steady_timer>(httpContext_, ops.getExpiration());
+        it->second.opExpirationTimer = std::make_unique<asio::steady_timer>(context(), ops.getExpiration());
    else
        it->second.opExpirationTimer->expires_at(ops.getExpiration());
    it->second.opExpirationTimer->async_wait(std::bind(&DhtProxyClient::handleExpireListener, this, std::placeholders::_1, key));
@@ -1070,14 +1044,10 @@ DhtProxyClient::sendListen(const restinio::http_request_header_t& header,
                    auto value = std::make_shared<Value>(json);
                    if (cb){
                        auto expired = json.get("expired", Json::Value(false)).asBool();
-                        {
-                            std::lock_guard<std::mutex> lock(lockCallbacks_);
-                            callbacks_.emplace_back([cb, value, opstate, expired]() {
-                                if (not opstate->stop.load() and not cb({value}, expired, system_clock::time_point::min()))
-                                    opstate->stop.store(true);
-                            });
-                        }
-                        loopSignal_();
+                        context().post([cb, value, opstate, expired]() {
+                            if (not opstate->stop.load() and not cb({value}, expired, system_clock::time_point::min()))
+                                opstate->stop.store(true);
+                        });
                    }
                }
            } catch(const std::exception& e) {
@@ -1125,7 +1095,6 @@ DhtProxyClient::opFailed()
        statusIpv6_ = NodeStatus::Disconnected;
    }
    getConnectivityStatus();
-    loopSignal_();
 }

 void
@@ -1155,22 +1124,18 @@ DhtProxyClient::restartListeners(const asio::error_code &ec)

    std::lock_guard<std::mutex> lock(searchLock_);
    for (auto& search : searches_) {
-        const auto& key = search.first;
+        auto key = search.first;
        for (auto& put : search.second.puts) {
            doPut(key, put.second.value, [ok = put.second.ok](bool result){
                *ok = result;
            }, time_point::max(), true);
            if (!put.second.refreshPutTimer) {
-                put.second.refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_);
+                put.second.refreshPutTimer = std::make_unique<asio::steady_timer>(context());
            }
            put.second.refreshPutTimer->expires_at(std::chrono::steady_clock::now() + proxy::OP_TIMEOUT - proxy::OP_MARGIN);
            put.second.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this,
                                                   std::placeholders::_1, key, put.first));
        }
-        // Restart failed pending puts
-        for (auto& pput : search.second.pendingPuts) {
-            doPut(key, pput, {}, time_point::max(), true);
-        }
    }
    if (not deviceKey_.empty()) {
        if (logger_)
@@ -1211,7 +1176,7 @@ DhtProxyClient::restartListeners(const asio::error_code &ec)
 }

 void
-DhtProxyClient::pushNotificationReceived([[maybe_unused]] const std::map<std::string, std::string>& notification)
+DhtProxyClient::pushNotificationReceived(const std::map<std::string, std::string>& notification)
 {
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
    {
@@ -1223,7 +1188,6 @@ DhtProxyClient::pushNotificationReceived([[maybe_unused]] const std::map<std::st
        statusIpv4_ = NodeStatus::Connected;
        statusIpv6_ = NodeStatus::Connected;
    }
-    auto launchLoop = false;
    try {
        auto sessionId = notification.find("s");
        if (sessionId != notification.end() and sessionId->second != pushSessionId_) {
@@ -1242,7 +1206,7 @@ DhtProxyClient::pushNotificationReceived([[maybe_unused]] const std::map<std::st
                auto vid = std::stoull(vidIt->second);
                auto& put = search.puts.at(vid);
                if (!put.refreshPutTimer)
-                    put.refreshPutTimer = std::make_unique<asio::steady_timer>(httpContext_, std::chrono::steady_clock::now());
+                    put.refreshPutTimer = std::make_unique<asio::steady_timer>(context(), std::chrono::steady_clock::now());
                else
                    put.refreshPutTimer->expires_at(std::chrono::steady_clock::now());
                put.refreshPutTimer->async_wait(std::bind(&DhtProxyClient::handleRefreshPut, this, std::placeholders::_1, key, vid));
@@ -1284,23 +1248,19 @@ DhtProxyClient::pushNotificationReceived([[maybe_unused]] const std::map<std::st
                        getline(ss, substr, ',');
                        ids.emplace_back(std::stoull(substr));
                    }
-                    {
-                        std::lock_guard<std::mutex> lockCb(lockCallbacks_);
-                        callbacks_.emplace_back([this, key, token, opstate, ids, sendTime]() {
-                            if (opstate->stop)
-                                return;
-                            std::lock_guard<std::mutex> lock(searchLock_);
-                            auto s = searches_.find(key);
-                            if (s == searches_.end())
-                                return;
-                            auto l = s->second.listeners.find(token);
-                            if (l == s->second.listeners.end())
-                                return;
-                            if (not opstate->stop and not l->second.cache.onValuesExpired(ids, sendTime))
-                                opstate->stop = true;
-                        });
-                    }
-                    launchLoop = true;
+                    context().post([this, key, token, opstate, ids, sendTime]() {
+                        if (opstate->stop)
+                            return;
+                        std::lock_guard<std::mutex> lock(searchLock_);
+                        auto s = searches_.find(key);
+                        if (s == searches_.end())
+                            return;
+                        auto l = s->second.listeners.find(token);
+                        if (l == s->second.listeners.end())
+                            return;
+                        if (not opstate->stop and not l->second.cache.onValuesExpired(ids, sendTime))
+                            opstate->stop = true;
+                    });
                }
            }
        }
@@ -1308,13 +1268,13 @@ DhtProxyClient::pushNotificationReceived([[maybe_unused]] const std::map<std::st
        if (logger_)
            logger_->e("[proxy:client] [push] receive error: %s", e.what());
    }
-    if (launchLoop)
-        loopSignal_();
+#else
+    (void) notification;
 #endif
 }

 void
-DhtProxyClient::resubscribe([[maybe_unused]] const InfoHash& key, [[maybe_unused]] const size_t token, [[maybe_unused]] Listener& listener)
+DhtProxyClient::resubscribe(const InfoHash& key, const size_t token, Listener& listener)
 {
 #ifdef OPENDHT_PUSH_NOTIFICATIONS
    if (deviceKey_.empty())
@@ -1330,7 +1290,7 @@ DhtProxyClient::resubscribe([[maybe_unused]] const InfoHash& key, [[maybe_unused
    header.method(restinio::http_method_subscribe());
    header.request_target("/" + key.toString());
    if (!listener.refreshSubscriberTimer){
-        listener.refreshSubscriberTimer = std::make_unique<asio::steady_timer>(httpContext_);
+        listener.refreshSubscriberTimer = std::make_unique<asio::steady_timer>(context());
    }
    listener.refreshSubscriberTimer->expires_at(std::chrono::steady_clock::now() +
                                                proxy::OP_TIMEOUT - proxy::OP_MARGIN);
@@ -1338,6 +1298,9 @@ DhtProxyClient::resubscribe([[maybe_unused]] const InfoHash& key, [[maybe_unused
                                                std::placeholders::_1, key, token, opstate));
    auto vcb = listener.cb;
    sendListen(header, vcb, opstate, listener, ListenMethod::RESUBSCRIBE);
+#else
+    (void) key;
+    (void) listener;
 #endif
 }

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
 *          Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *          Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
@@ -279,7 +279,7 @@ DhtProxyServer::DhtProxyServer(const std::shared_ptr<DhtRunner>& dht,
            ioContext_,
            std::forward<restinio::run_on_this_thread_settings_t<RestRouterTraitsTls>>(std::move(settings))
        );
-        // run http server
+        // run https server
        serverThread_ = std::thread([this]{
            httpsServer_->open_async([]{/*ok*/}, [](std::exception_ptr ex){
                std::rethrow_exception(ex);
@@ -466,8 +466,17 @@ DhtProxyServer::io_context() const
    return *ioContext_;
 }

-DhtProxyServer::~DhtProxyServer()
+void
+DhtProxyServer::stop()
 {
+    if (logger_)
+        logger_->d("[proxy:server] closing http server");
+    ioContext_->stop();
+    if (serverThread_.joinable())
+        serverThread_.join();
+    if (logger_)
+        logger_->d("[proxy:server] http server closed");
+
    if (not persistPath_.empty()) {
        if (logger_)
            logger_->d("Saving proxy state to %.*s", (int)persistPath_.size(), persistPath_.c_str());
@@ -495,13 +504,13 @@ DhtProxyServer::~DhtProxyServer()
        pushListeners_.clear();
 #endif
    }
-    if (logger_)
-        logger_->d("[proxy:server] closing http server");
+}
+
+DhtProxyServer::~DhtProxyServer()
+{
    ioContext_->stop();
    if (serverThread_.joinable())
        serverThread_.join();
-    if (logger_)
-        logger_->d("[proxy:server] http server closed");
 }

 template< typename ServerSettings >
@@ -1053,7 +1062,7 @@ DhtProxyServer::handleCancelPushListen(const asio::error_code &ec, const std::st
 void
 DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& json, PushType type, bool highPriority, const std::string& topic)
 {
-    if (pushServer_.empty() && type != PushType::UnifiedPush)
+    if (pushServer_.empty())
        return;

    unsigned reqid = 0;
@@ -1080,7 +1089,6 @@ DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& jso
            request->set_body(Json::writeString(jsonBuilder_, std::move(json)));
        } else {
            // NOTE: see https://github.com/appleboy/gorush
-            auto isResubscribe = json.isMember("timeout");
            Json::Value notification(Json::objectValue);
            Json::Value tokens(Json::arrayValue);
            tokens[0] = token;
@@ -1096,13 +1104,12 @@ DhtProxyServer::sendPushNotification(const std::string& token, Json::Value&& jso
                notification["expiration"] = exp;
                if (!topic.empty())
                    notification["topic"] = topic;
-                if (highPriority || isResubscribe) {
+                if (highPriority) {
                    Json::Value alert(Json::objectValue);
                    alert["title"]="hello";
                    notification["push_type"] = "alert";
                    notification["alert"] = alert;
                    notification["mutable_content"] = true;
-                    notification["priority"] = "high";
                } else {
                    notification["push_type"] = "background";
                    notification["content_available"] = true;
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -24,7 +24,6 @@

 #include "dhtrunner.h"
 #include "securedht.h"
-#include "network_utils.h"
 #ifdef OPENDHT_PEER_DISCOVERY
 #include "peer_discovery.h"
 #endif
@@ -65,24 +64,22 @@ DhtRunner::~DhtRunner()
 void
 DhtRunner::run(in_port_t port, Config& config, Context&& context)
 {
-    config.bind4.setFamily(AF_INET);
-    config.bind4.setPort(port);
-    config.bind6.setFamily(AF_INET6);
-    config.bind6.setPort(port);
+    config.bind4 = {asio::ip::address_v4::any(), port};
+    config.bind6 = {asio::ip::address_v6::any(), port};
    run(config, std::move(context));
 }

 void
 DhtRunner::run(const char* ip4, const char* ip6, const char* service, Config& config, Context&& context)
 {
-    auto res4 = SockAddr::resolve(ip4, service);
-    auto res6 = SockAddr::resolve(ip6, service);
-    if (res4.empty())
-        res4.emplace_back();
-    if (res6.empty())
-        res6.emplace_back();
-    config.bind4 = std::move(res4.front());
-    config.bind6 = std::move(res6.front());
+    auto s = asio::ip::udp::resolver::query(service);
+    asio::ip::udp::resolver resolver(*context.ioContext);
+    auto res4 = resolver.resolve(ip4, service);
+    auto res6 = resolver.resolve(ip6, service);
+    if (not res4.empty())
+        config.bind4 = std::move(*res4.begin());
+    if (not res6.empty())
+        config.bind6 = std::move(*res6.begin());
    run(config, std::move(context));
 }

@@ -93,38 +90,32 @@ DhtRunner::run(const Config& config, Context&& context)
    auto expected = State::Idle;
    if (not running.compare_exchange_strong(expected, State::Running)) {
        if (context.logger)
-            context.logger->w("[runner %p] Node is already running. Call join() first before calling run() again.", fmt::ptr(this));
+            context.logger->w("[runner %p] Node is already running. Call join() first before calling run() again.", this);
        return;
    }

    try {
        auto local4 = config.bind4;
        auto local6 = config.bind6;
-        if (not local4 and not local6) {
-            if (context.logger)
-                context.logger->w("[runner %p] No address to bind specified in the configuration, using default addresses", fmt::ptr(this));
-            local4.setFamily(AF_INET);
-            local6.setFamily(AF_INET6);
-        }
        auto state_path = config.dht_config.node_config.persist_path;
        if (not state_path.empty())
            state_path += "_port.txt";
-        if (not state_path.empty() && (local4.getPort() == 0 || local6.getPort() == 0)) {
+        if (not state_path.empty() && (local4.port() == 0 || local6.port() == 0)) {
            std::ifstream inConfig(state_path);
            if (inConfig.is_open()) {
                in_port_t port;
                if (inConfig >> port) {
-                    if (local4.getPort() == 0) {
+                    if (local4.port() == 0) {
                        if (context.logger)
-                            context.logger->d("[runner %p] Using IPv4 port %hu from saved configuration", fmt::ptr(this), port);
-                        local4.setPort(port);
+                            context.logger->d("[runner %p] Using IPv4 port %hu from saved configuration", this, port);
+                        local4.port(port);
                    }
                }
                if (inConfig >> port) {
-                    if (local6.getPort() == 0) {
+                    if (local6.port() == 0) {
                        if (context.logger)
-                            context.logger->d("[runner %p] Using IPv6 port %hu from saved configuration", fmt::ptr(this), port);
-                        local6.setPort(port);
+                            context.logger->d("[runner %p] Using IPv6 port %hu from saved configuration", this, port);
+                        local6.port(port);
                    }
                }
            }
@@ -132,7 +123,7 @@ DhtRunner::run(const Config& config, Context&& context)

        if (context.logger) {
            logger_ = context.logger;
-            logger_->d("[runner %p] state changed to Running", fmt::ptr(this));
+            logger_->d("[runner %p] state changed to Running", this);
        }

 #ifdef OPENDHT_PROXY_CLIENT
@@ -140,34 +131,24 @@ DhtRunner::run(const Config& config, Context&& context)
        identityAnnouncedCb_ = context.identityAnnouncedCb;
 #endif

+        if (not context.ioContext)
+            context.ioContext.reset(new asio::io_context);
+
+        ioContext_ = context.ioContext;
+        strand_ = std::make_shared<asio::io_context::strand>(asio::io_context::strand(*ioContext_));
+
        if (config.proxy_server.empty()) {
            if (not context.sock) {
-                context.sock.reset(new net::UdpSocket(local4, local6, context.logger));
+                //if (context.logger)
+                //    context.logger->d("[runner %p] Creating new socket with local addresses %s and %s", this, local4.toString().c_str(), local6.toString().c_str());
+                context.sock.reset(new net::UdpSocket(strand_, local4, local6/*, context.logger*/));
            }
-            context.sock->setOnReceive([&] (net::PacketList&& pkts) {
-                net::PacketList ret;
-                {
-                    std::lock_guard<std::mutex> lck(sock_mtx);
-                    rcv.splice(rcv.end(), std::move(pkts));
-                    size_t dropped = 0;
-                    while (rcv.size() > net::RX_QUEUE_MAX_SIZE) {
-                        rcv.pop_front();
-                        dropped++;
-                    }
-                    if (dropped and logger_) {
-                        logger_->w("[runner %p] dropped %zu packets: queue is full!", fmt::ptr(this), dropped);
-                    }
-                    ret = std::move(rcv_free);
-                }
-                cv.notify_all();
-                return ret;
-            });
            if (not state_path.empty()) {
                std::ofstream outConfig(state_path);
-                outConfig << context.sock->getBoundRef(AF_INET).getPort() << std::endl;
-                outConfig << context.sock->getBoundRef(AF_INET6).getPort() << std::endl;
+                outConfig << context.sock->getPort(AF_INET) << std::endl;
+                outConfig << context.sock->getPort(AF_INET6) << std::endl;
            }
-            auto dht = std::make_unique<Dht>(std::move(context.sock), SecureDht::getConfig(config.dht_config), context.logger);
+            auto dht = std::make_unique<Dht>(strand_, std::move(context.sock), SecureDht::getConfig(config.dht_config), context.logger);
            dht_ = std::make_unique<SecureDht>(std::move(dht), config.dht_config, std::move(context.identityAnnouncedCb), context.logger);
        } else {
            enableProxy(true);
@@ -180,45 +161,40 @@ DhtRunner::run(const Config& config, Context&& context)
        throw;
    }

+    dht_->addOnStateChangeCallback([this](const DhtNodeStatus& status){
+        if (status.get() != NodeStatus::Connecting) {
+            auto pending = std::move(pending_ops);
+            while (not pending.empty()) {
+                pending.front()(*dht_);
+                pending.pop();
+            }
+        }
+    });
+
    if (context.statusChangedCallback) {
-        statusCb = std::move(context.statusChangedCallback);
+        if (logger_)
+            logger_->d("[dhtrunner] starting io_context");
+        dht_->addOnStateChangeCallback(std::move(context.statusChangedCallback));
    }
    if (context.certificateStore) {
        dht_->setLocalCertificateStore(std::move(context.certificateStore));
    }
-    if (context.publicAddressChangedCb) {
-        dht_->setOnPublicAddressChanged(std::move(context.publicAddressChangedCb));
-    }

    if (not config.threaded)
        return;
    dht_thread = std::thread([this]() {
-        while (running != State::Idle) {
-            std::unique_lock<std::mutex> lk(dht_mtx);
-            time_point wakeup = loop_();
-
-            auto hasJobToDo = [this]() {
-                if (running == State::Idle)
-                    return true;
-                {
-                    std::lock_guard<std::mutex> lck(sock_mtx);
-                    if (not rcv.empty())
-                        return true;
-                }
-                {
-                    std::lock_guard<std::mutex> lck(storage_mtx);
-                    if (not pending_ops_prio.empty())
-                        return true;
-                    auto s = getStatus();
-                    if (not pending_ops.empty() and (s == NodeStatus::Connected or s == NodeStatus::Disconnected))
-                        return true;
-                }
-                return false;
-            };
-            if (wakeup == time_point::max())
-                cv.wait(lk, hasJobToDo);
-            else
-                cv.wait_until(lk, wakeup, hasJobToDo);
+        try {
+            if (logger_)
+                logger_->d("[dhtrunner] starting io_context");
+            // Ensures the context won't run out of work
+            auto work = asio::make_work_guard(*ioContext_);
+            ioContext_->run();
+            if (logger_)
+                logger_->d("[dhtrunner] io_context stopped");
+        }
+        catch(const std::exception& ex){
+            if (logger_)
+                logger_->e("[dhtrunner] run error: %s", ex.what());
        }
    });

@@ -237,7 +213,7 @@ DhtRunner::run(const Config& config, Context&& context)
        auto netId = config.dht_config.node_config.network;
        if (config.peer_discovery) {
            peerDiscovery_->startDiscovery<NodeInsertionPack>(PEER_DISCOVERY_DHT_SERVICE, [this, netId](NodeInsertionPack&& v, SockAddr&& addr){
-                addr.setPort(v.port);
+                addr.port(v.port);
                if (v.nodeId != dht_->getNodeId() && netId == v.net){
                    bootstrap(v.nodeId, addr);
                }
@@ -250,14 +226,16 @@ DhtRunner::run(const Config& config, Context&& context)
            adc.nodeId = dht_->getNodeId();
            if (auto socket = dht_->getSocket()) {
                // IPv4
-                if (const auto& bound4 = socket->getBoundRef(AF_INET)) {
-                    adc.port = bound4.getPort();
+                const auto& bound4 = socket->getBound(AF_INET);
+                if (bound4 != asio::ip::udp::endpoint{}) {
+                    adc.port = bound4.port();
                    msgpack::pack(sbuf_node, adc);
                    peerDiscovery_->startPublish(AF_INET, PEER_DISCOVERY_DHT_SERVICE, sbuf_node);
                }
                // IPv6
-                if (const auto& bound6 = socket->getBoundRef(AF_INET6)) {
-                    adc.port = bound6.getPort();
+                const auto& bound6 = socket->getBound(AF_INET6);
+                if (bound6 != asio::ip::udp::endpoint{}) {
+                    adc.port = bound6.port();
                    sbuf_node.clear();
                    msgpack::pack(sbuf_node, adc);
                    peerDiscovery_->startPublish(AF_INET6, PEER_DISCOVERY_DHT_SERVICE, sbuf_node);
@@ -270,31 +248,46 @@ DhtRunner::run(const Config& config, Context&& context)

 void
 DhtRunner::shutdown(ShutdownCallback cb, bool stop) {
-    std::unique_lock<std::mutex> lck(storage_mtx);
+    //std::unique_lock<std::mutex> lck(storage_mtx);
    auto expected = State::Running;
    if (not running.compare_exchange_strong(expected, State::Stopping)) {
        if (expected == State::Stopping and ongoing_ops) {
            if (cb)
                shutdownCallbacks_.emplace_back(std::move(cb));
+                //asio::post(*ioContext_, [cb] { cb(); });
+                // ioContext_->post([cb] { cb(); });
        }
        else if (cb) {
-            lck.unlock();
            cb();
        }
        return;
    }
    if (logger_)
-        logger_->d("[runner %p] state changed to Stopping, %zu ongoing ops", fmt::ptr(this), ongoing_ops.load());
+        logger_->d("[runner %p] state changed to Stopping, %zu ongoing ops", this, ongoing_ops.load());
    ongoing_ops++;
    shutdownCallbacks_.emplace_back(std::move(cb));
-    pending_ops.emplace([=](SecureDht&) mutable {
+    post([=]() mutable {
        auto onShutdown = [this]{ opEnded(); };
        if (dht_)
            dht_->shutdown(onShutdown, stop);
        else
            opEnded();
    });
-    cv.notify_all();
+    //cv.notify_all();
+}
+
+void
+DhtRunner::postOp(std::function<void(SecureDht&)>&& op, bool prio) {
+    ongoing_ops++;
+    /*if (prio)
+        ioContext_->post(asio::bind_executor(*strand_, std::move(op)));
+    else*/
+        ioContext_->post(asio::bind_executor(*strand_, [this, prio, op=std::move(op)]{
+            if (dht_ && (prio || dht_->getStatus() != NodeStatus::Connecting))
+                op(*dht_);
+            else
+                pending_ops.emplace(std::move(op));
+        }));
 }

 void
@@ -323,7 +316,6 @@ bool
 DhtRunner::checkShutdown() {
    decltype(shutdownCallbacks_) cbs;
    {
-        std::lock_guard<std::mutex> lck(storage_mtx);
        if (running != State::Stopping or ongoing_ops)
            return false;
        cbs = std::move(shutdownCallbacks_);
@@ -345,31 +337,29 @@ DhtRunner::join()
        if (peerDiscovery_)
            peerDiscovery_->stop();
 #endif
-        if (dht_)
+        /*if (dht_)
            if (auto sock = dht_->getSocket())
-                sock->stop();
+                sock->stop();*/
        if (logger_)
-            logger_->d("[runner %p] state changed to Idle", fmt::ptr(this));
+            logger_->d("[runner %p] state changed to Idle", this);
    }

-    if (dht_thread.joinable())
+    if (dht_thread.joinable()) {
+        ioContext_->stop();
        dht_thread.join();
+    }

    {
        std::lock_guard<std::mutex> lck(storage_mtx);
        if (ongoing_ops and logger_) {
-            logger_->w("[runner %p] stopping with %zu remaining ops", fmt::ptr(this), ongoing_ops.load());
+            logger_->w("[runner %p] stopping with %zu remaining ops", this, ongoing_ops.load());
        }
-        pending_ops = decltype(pending_ops)();
-        pending_ops_prio = decltype(pending_ops_prio)();
        ongoing_ops = 0;
        shutdownCallbacks_.clear();
    }
    {
        std::lock_guard<std::mutex> lck(dht_mtx);
        resetDht();
-        status4 = NodeStatus::Disconnected;
-        status6 = NodeStatus::Disconnected;
    }
 }

@@ -387,7 +377,7 @@ DhtRunner::getBoundPort(sa_family_t af) const {
    std::lock_guard<std::mutex> lck(dht_mtx);
    if (dht_)
        if (auto sock = dht_->getSocket())
-            return sock->getPort(af);
+            return sock->getBound(af).port();
    return 0;
 }

@@ -457,6 +447,12 @@ DhtRunner::setLogger(const Sp<Logger>& logger) {
        dht_->setLogger(logger);
 }

+void
+DhtRunner::setLoggers(LogMethod error, LogMethod warn, LogMethod debug) {
+    Logger logger {std::move(error), std::move(warn), std::move(debug)};
+    setLogger(logger);
+}
+
 void
 DhtRunner::setLogFilter(const InfoHash& f) {
    std::lock_guard<std::mutex> lck(dht_mtx);
@@ -509,8 +505,8 @@ DhtRunner::getNodeInfo() const {
        info.ipv4 = dht_->getNodesStats(AF_INET);
        info.ipv6 = dht_->getNodesStats(AF_INET6);
        if (auto sock = dht_->getSocket()) {
-            info.bound4 = sock->getBoundRef(AF_INET).getPort();
-            info.bound6 = sock->getBoundRef(AF_INET6).getPort();
+            info.bound4 = sock->getBound(AF_INET).port();
+            info.bound6 = sock->getBound(AF_INET6).port();
        }
    }
    info.ongoing_ops = ongoing_ops;
@@ -522,17 +518,17 @@ DhtRunner::getNodeInfo(std::function<void(std::shared_ptr<NodeInfo>)> cb)
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
    ongoing_ops++;
-    pending_ops_prio.emplace([cb = std::move(cb), this](SecureDht& dht){
+    post([cb = std::move(cb), this](){
        auto sinfo = std::make_shared<NodeInfo>();
        auto& info = *sinfo;
-        info.id = dht.getId();
-        info.node_id = dht.getNodeId();
-        info.ipv4 = dht.getNodesStats(AF_INET);
-        info.ipv6 = dht.getNodesStats(AF_INET6);
-        std::tie(info.storage_size, info.storage_values) = dht.getStoreSize();
-        if (auto sock = dht.getSocket()) {
-            info.bound4 = sock->getBoundRef(AF_INET).getPort();
-            info.bound6 = sock->getBoundRef(AF_INET6).getPort();
+        info.id = dht_->getId();
+        info.node_id = dht_->getNodeId();
+        info.ipv4 = dht_->getNodesStats(AF_INET);
+        info.ipv6 = dht_->getNodesStats(AF_INET6);
+        std::tie(info.storage_size, info.storage_values) = dht_->getStoreSize();
+        if (auto sock = dht_->getSocket()) {
+            info.bound4 = sock->getBound(AF_INET).port();
+            info.bound6 = sock->getBound(AF_INET6).port();
        }
        info.ongoing_ops = ongoing_ops;
        cb(std::move(sinfo));
@@ -591,7 +587,12 @@ DhtRunner::getPublicAddressStr(sa_family_t af) const
 {
    auto addrs = getPublicAddress(af);
    std::vector<std::string> ret(addrs.size());
-    std::transform(addrs.begin(), addrs.end(), ret.begin(), [](const SockAddr& a) { return a.toString(); });
+    std::transform(addrs.begin(), addrs.end(), ret.begin(), [](const SockAddr& a) {
+        return asio::ip::detail::endpoint(a.address(), a.port()).to_string();
+        /*std::ostringstream ss;
+        ss << a;
+        return ss.str();*/
+    });
    return ret;
 }

@@ -600,8 +601,8 @@ DhtRunner::getPublicAddress(std::function<void(std::vector<SockAddr>&&)> cb, sa_
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
    ongoing_ops++;
-    pending_ops_prio.emplace([cb = std::move(cb), this, af](SecureDht& dht){
-        cb(dht.getPublicAddress(af));
+    post([cb = std::move(cb), this, af](){
+        cb(dht_->getPublicAddress(af));
        opEnded();
    });
    cv.notify_all();
@@ -619,7 +620,7 @@ DhtRunner::setLocalCertificateStore(CertificateStoreQuery&& query_method) {
    if (dht_)
        dht_->setLocalCertificateStore(std::forward<CertificateStoreQuery>(query_method));
 }
-
+/*
 time_point
 DhtRunner::loop_()
 {
@@ -683,7 +684,7 @@ DhtRunner::loop_()
    }

    if (dropped && logger_)
-        logger_->e("[runner %p] Dropped %zu packets with high delay.", fmt::ptr(this), dropped);
+        logger_->e("[runner %p] Dropped %zu packets with high delay.", this, dropped);

    NodeStatus nstatus4 = dht_->updateStatus(AF_INET);
    NodeStatus nstatus6 = dht_->updateStatus(AF_INET6);
@@ -695,22 +696,24 @@ DhtRunner::loop_()
    }

    return wakeup;
-}
+}*/

 void
 DhtRunner::get(InfoHash hash, GetCallback vcb, DoneCallback dcb, Value::Filter f, Where w)
 {
-    std::unique_lock<std::mutex> lck(storage_mtx);
    if (running != State::Running) {
-        lck.unlock();
        if (dcb) dcb(false, {});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([=](SecureDht& dht) mutable {
-        dht.get(hash, std::move(vcb), bindOpDoneCallback(std::move(dcb)), std::move(f), std::move(w));
+    postOp([
+        hash,
+        vcb = std::move(vcb),
+        dcb=bindOpDoneCallback(std::move(dcb)),
+        f = std::move(f),
+        w = std::move(w)
+    ](SecureDht& dht) mutable {
+        dht.get(hash, std::move(vcb), std::move(dcb), std::move(f), std::move(w));
    });
-    cv.notify_all();
 }

 void
@@ -726,11 +729,9 @@ DhtRunner::query(const InfoHash& hash, QueryCallback cb, DoneCallback done_cb, Q
        if (done_cb) done_cb(false, {});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([=](SecureDht& dht) mutable {
+    postOp([=](SecureDht& dht) mutable {
        dht.query(hash, std::move(cb), bindOpDoneCallback(std::move(done_cb)), std::move(q));
    });
-    cv.notify_all();
 }

 std::future<size_t>
@@ -743,8 +744,8 @@ DhtRunner::listen(InfoHash hash, ValueCallback vcb, Value::Filter f, Where w)
        ret_token->set_value(0);
        return ret_token->get_future();
    }
-    pending_ops.emplace([=](SecureDht& dht) mutable {
-        ret_token->set_value(dht.listen(hash, std::move(vcb), std::move(f), std::move(w)));
+    post([=]() mutable {
+        ret_token->set_value(dht_->listen(hash, std::move(vcb), std::move(f), std::move(w)));
    });
    cv.notify_all();
    return ret_token->get_future();
@@ -762,26 +763,21 @@ DhtRunner::cancelListen(InfoHash h, size_t token)
    std::lock_guard<std::mutex> lck(storage_mtx);
    if (running != State::Running)
        return;
-    ongoing_ops++;
-    pending_ops.emplace([=](SecureDht& dht) {
+    postOp([=](SecureDht& dht) {
        dht.cancelListen(h, token);
        opEnded();
    });
-    cv.notify_all();
 }

 void
 DhtRunner::cancelListen(InfoHash h, std::shared_future<size_t> ftoken)
 {
-    std::lock_guard<std::mutex> lck(storage_mtx);
    if (running != State::Running)
        return;
-    ongoing_ops++;
-    pending_ops.emplace([this, h, ftoken = std::move(ftoken)](SecureDht& dht) {
+    postOp([this, h, ftoken = std::move(ftoken)](SecureDht& dht) {
        dht.cancelListen(h, ftoken.get());
        opEnded();
    });
-    cv.notify_all();
 }

 void
@@ -793,14 +789,12 @@ DhtRunner::put(InfoHash hash, Value&& value, DoneCallback cb, time_point created
        if (cb) cb(false, {});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([=,
+    postOp([=,
        cb = std::move(cb),
        sv = std::make_shared<Value>(std::move(value))
    ] (SecureDht& dht) mutable {
        dht.put(hash, sv, bindOpDoneCallback(std::move(cb)), created, permanent);
    });
-    cv.notify_all();
 }

 void
@@ -812,11 +806,9 @@ DhtRunner::put(InfoHash hash, std::shared_ptr<Value> value, DoneCallback cb, tim
        if (cb) cb(false, {});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([=, value = std::move(value), cb = std::move(cb)](SecureDht& dht) mutable {
+    postOp([=, value = std::move(value), cb = std::move(cb)](SecureDht& dht) mutable {
        dht.put(hash, value, bindOpDoneCallback(std::move(cb)), created, permanent);
    });
-    cv.notify_all();
 }

 void
@@ -829,20 +821,18 @@ void
 DhtRunner::cancelPut(const InfoHash& h, Value::Id id)
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops.emplace([=](SecureDht& dht) {
-        dht.cancelPut(h, id);
+    post([=]() {
+        dht_->cancelPut(h, id);
    });
-    cv.notify_all();
 }

 void
 DhtRunner::cancelPut(const InfoHash& h, const std::shared_ptr<Value>& value)
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops.emplace([=](SecureDht& dht) {
-        dht.cancelPut(h, value->id);
+    post([=]() {
+        dht_->cancelPut(h, value->id);
    });
-    cv.notify_all();
 }

 void
@@ -854,14 +844,12 @@ DhtRunner::putSigned(InfoHash hash, std::shared_ptr<Value> value, DoneCallback c
        if (cb) cb(false, {});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([=,
+    postOp([=,
        cb = std::move(cb),
        value = std::move(value)
    ](SecureDht& dht) mutable {
        dht.putSigned(hash, value, bindOpDoneCallback(std::move(cb)), permanent);
    });
-    cv.notify_all();
 }

 void
@@ -885,14 +873,12 @@ DhtRunner::putEncrypted(InfoHash hash, InfoHash to, std::shared_ptr<Value> value
        if (cb) cb(false, {});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([=,
+    postOp([=,
        cb = std::move(cb),
        value = std::move(value)
    ] (SecureDht& dht) mutable {
        dht.putEncrypted(hash, to, value, bindOpDoneCallback(std::move(cb)), permanent);
    });
-    cv.notify_all();
 }

 void
@@ -917,7 +903,7 @@ DhtRunner::putEncrypted(InfoHash hash, const std::shared_ptr<crypto::PublicKey>&
        return;
    }
    ongoing_ops++;
-    pending_ops.emplace([=,
+    postOp([=,
        cb = std::move(cb),
        value = std::move(value)
    ] (SecureDht& dht) mutable {
@@ -936,8 +922,8 @@ void
 DhtRunner::bootstrap(const std::string& host, const std::string& service)
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([host, service] (SecureDht& dht) mutable {
-        dht.addBootstrap(host, service);
+    post([this, host, service] () mutable {
+        dht_->addBootstrap(host, service);
    });
    cv.notify_all();
 }
@@ -946,8 +932,8 @@ void
 DhtRunner::bootstrap(const std::string& hostService)
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([host_service = splitPort(hostService)] (SecureDht& dht) mutable {
-        dht.addBootstrap(host_service.first, host_service.second);
+    post([this, host_service = splitPort(hostService)] () mutable {
+        dht_->addBootstrap(host_service.first, host_service.second);
    });
    cv.notify_all();
 }
@@ -956,8 +942,8 @@ void
 DhtRunner::clearBootstrap()
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([] (SecureDht& dht) mutable {
-        dht.clearBootstrap();
+    post([this] () mutable {
+        dht_->clearBootstrap();
    });
    cv.notify_all();
 }
@@ -971,15 +957,15 @@ DhtRunner::bootstrap(std::vector<SockAddr> nodes, DoneCallbackSimple cb)
    }
    std::lock_guard<std::mutex> lck(storage_mtx);
    ongoing_ops++;
-    pending_ops_prio.emplace([
+    post([this,
        cb = bindOpDoneCallback(std::move(cb)),
        nodes = std::move(nodes)
-    ] (SecureDht& dht) mutable {
+    ] () mutable {
        auto rem = cb ? std::make_shared<std::pair<size_t, bool>>(nodes.size(), false) : nullptr;
        for (auto& node : nodes) {
-            if (node.getPort() == 0)
-                node.setPort(net::DHT_DEFAULT_PORT);
-            dht.pingNode(std::move(node), [rem,cb](bool ok) {
+            if (node.port() == 0)
+                node.port(net::DHT_DEFAULT_PORT);
+            dht_->pingNode(std::move(node), [rem,cb](bool ok) {
                auto& r = *rem;
                r.first--;
                r.second |= ok;
@@ -1002,8 +988,10 @@ DhtRunner::bootstrap(SockAddr addr, DoneCallbackSimple cb)
        return;
    }
    ongoing_ops++;
-    pending_ops_prio.emplace([addr = std::move(addr), cb = bindOpDoneCallback(std::move(cb))](SecureDht& dht) mutable {
-        dht.pingNode(std::move(addr), std::move(cb));
+    if (addr.address().is_unspecified())
+        addr.address(addr.address().is_v4() ? asio::ip::address(asio::ip::address_v4::loopback()) : asio::ip::address(asio::ip::address_v6::loopback()));
+    post([this, addr = std::move(addr), cb = bindOpDoneCallback(std::move(cb))]() mutable {
+        dht_->pingNode(std::move(addr), std::move(cb));
    });
    cv.notify_all();
 }
@@ -1014,8 +1002,8 @@ DhtRunner::bootstrap(const InfoHash& id, const SockAddr& address)
    std::lock_guard<std::mutex> lck(storage_mtx);
    if (running != State::Running)
        return;
-    pending_ops_prio.emplace([id, address](SecureDht& dht) mutable {
-        dht.insertNode(id, address);
+    post([this, id, address]() mutable {
+        dht_->insertNode(id, address);
    });
    cv.notify_all();
 }
@@ -1026,9 +1014,9 @@ DhtRunner::bootstrap(std::vector<NodeExport> nodes)
    std::lock_guard<std::mutex> lck(storage_mtx);
    if (running != State::Running)
        return;
-    pending_ops_prio.emplace([nodes = std::move(nodes)](SecureDht& dht) {
+    post([this, nodes = std::move(nodes)]() {
        for (auto& node : nodes)
-            dht.insertNode(node);
+            dht_->insertNode(node);
    });
    cv.notify_all();
 }
@@ -1037,8 +1025,8 @@ void
 DhtRunner::connectivityChanged()
 {
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([=](SecureDht& dht) {
-        dht.connectivityChanged();
+    post([=]() {
+        dht_->connectivityChanged();
 #ifdef OPENDHT_PEER_DISCOVERY
        if (peerDiscovery_)
            peerDiscovery_->connectivityChanged();
@@ -1055,14 +1043,12 @@ DhtRunner::findCertificate(InfoHash hash, std::function<void(const Sp<crypto::Ce
        cb({});
        return;
    }
-    ongoing_ops++;
-    pending_ops.emplace([this, hash, cb = std::move(cb)] (SecureDht& dht) {
+    postOp([this, hash, cb = std::move(cb)] (SecureDht& dht) {
        dht.findCertificate(hash, [this, cb = std::move(cb)](const Sp<crypto::Certificate>& crt){
            cb(crt);
            opEnded();
        });
    });
-    cv.notify_all();
 }

 void
@@ -1101,13 +1087,7 @@ DhtRunner::enableProxy(bool proxify)
        auto dht_via_proxy = std::make_unique<DhtProxyClient>(
                config_.server_ca,
                config_.client_identity,
-                [this]{
-                    if (config_.threaded) {
-                        std::lock_guard<std::mutex> lck(storage_mtx);
-                        pending_ops_prio.emplace([=](SecureDht&) mutable {});
-                        cv.notify_all();
-                    }
-                },
+                strand_,
                config_.proxy_server, config_.push_node_id, logger_);
        if (not config_.push_token.empty())
            dht_via_proxy->setPushNotificationToken(config_.push_token);
@@ -1179,7 +1159,7 @@ DhtRunner::pushNotificationReceived(const std::map<std::string, std::string>& da
 {
 #if defined(OPENDHT_PROXY_CLIENT) && defined(OPENDHT_PUSH_NOTIFICATIONS)
    std::lock_guard<std::mutex> lck(storage_mtx);
-    pending_ops_prio.emplace([=](SecureDht&) {
+    post([=]() {
        if (dht_)
            dht_->pushNotificationReceived(data);
    });
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author: Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -17,7 +17,7 @@
 */

 #include "http.h"
-#include "logger.h"
+#include "log_enable.h"
 #include "crypto.h"
 #include "base64.h"
 #include "compat/os_cert.h"
@@ -33,10 +33,6 @@
 #include <openssl/x509.h>
 #include <openssl/x509_vfy.h>

-#include <cctype>
-#include <iomanip>
-#include <sstream>
-
 #define MAXAGE_SEC (14*24*60*60)
 #define JITTER_SEC (60)
 #define OCSP_MAX_RESPONSE_SIZE (20480)
@@ -115,11 +111,11 @@ newTlsClientContext(const std::shared_ptr<dht::Logger>& logger)

    if (char* path = getenv("CA_ROOT_FILE")) {
        if (logger)
-            logger->debug("Using CA file: {}", path);
+            logger->d("Using CA file: %s", path);
        ctx->load_verify_file(path);
    } else if (char* path = getenv("CA_ROOT_PATH")) {
        if (logger)
-            logger->debug("Using CA path: {}", path);
+            logger->d("Using CA path: %s", path);
        ctx->add_verify_path(path);
    } else {
 #ifdef __ANDROID__
@@ -1088,30 +1084,6 @@ Request::build()
    request_ = request.str();
 }

-// https://stackoverflow.com/a/17708801
-std::string
-Request::url_encode(std::string_view value)
-{
-    std::ostringstream escaped;
-    escaped.fill('0');
-    escaped << std::hex;
-
-    for (const char& c : value) {
-        // Keep alphanumeric and other accepted characters intact
-        if (std::isalnum(c) || c == '-' || c == '_' || c == '.' || c == '~') {
-            escaped << c;
-            continue;
-        }
-
-        // Any other characters are percent-encoded
-        escaped << std::uppercase;
-        escaped << '%' << std::setw(2) << static_cast<int>(static_cast<unsigned char>(c));
-        escaped << std::nouppercase;
-    }
-
-    return escaped.str();
-}
-
 void
 Request::add_on_status_callback(OnStatusCb cb) {
    cbs_.on_status = std::move(cb);
@@ -1317,7 +1289,7 @@ Request::post()
    init_parser();

    if (logger_)
-        logger_->debug("[http:request:{}] sending {} bytes", id_, request_.size());
+        logger_->d("[http:request:%i] sending %zu bytes", id_, request_.size());

    // write the request to buffer
    std::ostream request_stream(&conn_->input());
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *              Nicolas Reynaud <nicolas.reynaud@savoirfairelinux.com>
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
@@ -20,10 +20,6 @@
 #include "log.h"
 #include "dhtrunner.h"

-#include <fmt/format.h>
-#include <fmt/ostream.h>
-#include <fmt/printf.h>
-
 #ifndef _WIN32
 #include <syslog.h>
 #endif
@@ -34,70 +30,46 @@
 namespace dht {
 namespace log {

-/**
- * Terminal colors for logging
- */
-namespace Color {
-    enum Code {
-        FG_RED      = 31,
-        FG_GREEN    = 32,
-        FG_YELLOW   = 33,
-        FG_BLUE     = 34,
-        FG_DEFAULT  = 39,
-        BG_RED      = 41,
-        BG_GREEN    = 42,
-        BG_BLUE     = 44,
-        BG_DEFAULT  = 49
-    };
-    class Modifier {
-        const Code code;
-    public:
-        constexpr Modifier(Code pCode) : code(pCode) {}
-        friend std::ostream&
-        operator<<(std::ostream& os, const Modifier& mod) {
-            return os << "\033[" << mod.code << 'm';
-        }
-    };
-}
-
-constexpr const Color::Modifier def(Color::FG_DEFAULT);
-constexpr const Color::Modifier red(Color::FG_RED);
-constexpr const Color::Modifier yellow(Color::FG_YELLOW);
-
 /**
 * Print va_list to std::ostream (used for logging).
 */
 void
-printfLog(std::ostream& s, const std::string& message) {
+printLog(std::ostream& s, char const *m, va_list args) {
+    // print log to buffer
+    std::array<char, 8192> buffer;
+    int ret = vsnprintf(buffer.data(), buffer.size(), m, args);
+    if (ret <= 0)
+        return;
+
+    // write timestamp
    using namespace std::chrono;
    using log_precision = microseconds;
-    auto num = duration_cast<log_precision>(steady_clock::now().time_since_epoch()).count();
    constexpr auto den = log_precision::period::den;
-    fmt::print(s, "[{:06d}.{:06d}] ", num / den, num % den);
-    s << message << std::endl;
-}
-void
-printLog(std::ostream& s, fmt::string_view format, fmt::format_args args) {
-    using namespace std::chrono;
-    using log_precision = microseconds;
    auto num = duration_cast<log_precision>(steady_clock::now().time_since_epoch()).count();
-    constexpr auto den = log_precision::period::den;
-    fmt::print(s, "[{:06d}.{:06d}] ", num / den, num % den);
-    fmt::vprint(s, format, args);
+    s << "[" << std::setfill('0') << std::setw(6) << num / den << "."
+             << std::setfill('0') << std::setw(6) << num % den << "]" << " ";
+
+    // write log
+    s.write(buffer.data(), std::min((size_t) ret, buffer.size()));
+    if ((size_t) ret >= buffer.size())
+        s << "[[TRUNCATED]]";
    s << std::endl;
 }

 std::shared_ptr<Logger>
 getStdLogger() {
    return std::make_shared<Logger>(
-        [](LogLevel level, std::string&& message) {
-            if (level == LogLevel::error)
-                std::cerr << red;
-            else if (level == LogLevel::warning)
-                std::cerr << yellow;
-            printfLog(std::cerr, message);
+        [](char const *m, va_list args) {
+            std::cerr << red;
+            printLog(std::cerr, m, args);
            std::cerr << def;
-        }
+        },
+        [](char const *m, va_list args) {
+            std::cout << yellow;
+            printLog(std::cout, m, args);
+            std::cout << def;
+        },
+        [](char const *m, va_list args) { printLog(std::cout, m, args); }
    );
 }

@@ -105,28 +77,14 @@ std::shared_ptr<Logger>
 getFileLogger(const std::string &path) {
    auto logfile = std::make_shared<std::ofstream>();
    logfile->open(path, std::ios::out);
+
    return std::make_shared<Logger>(
-        [logfile](LogLevel /*level*/, std::string&& message) {
-            printfLog(*logfile, message);
-        }
+        [=](char const *m, va_list args) { printLog(*logfile, m, args); },
+        [=](char const *m, va_list args) { printLog(*logfile, m, args); },
+        [=](char const *m, va_list args) { printLog(*logfile, m, args); }
    );
 }

-#ifndef _WIN32
-constexpr
-int syslogLevel(LogLevel level) {
-    switch (level) {
-    case LogLevel::error:
-        return LOG_ERR;
-    case LogLevel::warning:
-        return LOG_WARNING;
-    case LogLevel::debug:
-        return LOG_INFO;
-    }
-    return LOG_ERR;
-}
-#endif
-
 std::shared_ptr<Logger>
 getSyslogLogger(const char* name) {
 #ifndef _WIN32
@@ -146,11 +104,12 @@ getSyslogLogger(const char* name) {
        opened_logfile = logfile;
    }
    return std::make_shared<Logger>(
-        [logfile](LogLevel level, std::string&& message) {
-            syslog(syslogLevel(level), "%s", message.c_str());
-        });
+        [logfile](char const *m, va_list args) { vsyslog(LOG_ERR, m, args); },
+        [logfile](char const *m, va_list args) { vsyslog(LOG_WARNING, m, args); },
+        [logfile](char const *m, va_list args) { vsyslog(LOG_INFO, m, args); }
+    );
 #else
-    return getStdLogger();
+    return std::make_shared<Logger>();
 #endif
 }

@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -20,12 +20,10 @@
 #include "network_engine.h"
 #include "request.h"
 #include "default_types.h"
-#include "logger.h"
+#include "log_enable.h"
 #include "parsed_message.h"

 #include <msgpack.hpp>
-#include <chrono>
-#include <string_view>

 namespace dht {
 namespace net {
@@ -43,8 +41,7 @@ constexpr std::chrono::seconds NetworkEngine::UDP_REPLY_TIME;
 constexpr std::chrono::seconds NetworkEngine::RX_MAX_PACKET_TIME;
 constexpr std::chrono::seconds NetworkEngine::RX_TIMEOUT;

-/* OpenDHT User Agent (UA) */
-constexpr std::string_view OPENDHT_UA {"o2"};
+const std::string NetworkEngine::my_v {"RNG1"};

 static constexpr uint8_t v4prefix[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, 0, 0, 0, 0};

@@ -56,6 +53,8 @@ struct NetworkEngine::PartialMessage {
    time_point start;
    time_point last_part;
    std::unique_ptr<ParsedMessage> msg;
+    std::unique_ptr<asio::steady_timer> timeout;
+    std::unique_ptr<asio::steady_timer> final_timeout;
 };

 std::vector<Blob>
@@ -86,10 +85,10 @@ RequestAnswer::RequestAnswer(ParsedMessage&& msg)
 {}

 NetworkEngine::NetworkEngine(InfoHash& myid, NetworkConfig c,
+        const Sp<strand>& strand,
        std::unique_ptr<DatagramSocket>&& sock,
        const Sp<Logger>& log,
        std::mt19937_64& rand,
-        Scheduler& scheduler,
        decltype(NetworkEngine::onError)&& onError,
        decltype(NetworkEngine::onNewNode)&& onNewNode,
        decltype(NetworkEngine::onReportedAddr)&& onReportedAddr,
@@ -99,6 +98,7 @@ NetworkEngine::NetworkEngine(InfoHash& myid, NetworkConfig c,
        decltype(NetworkEngine::onListen)&& onListen,
        decltype(NetworkEngine::onAnnounce)&& onAnnounce,
        decltype(NetworkEngine::onRefresh)&& onRefresh) :
+    strand_(strand),
    onError(std::move(onError)),
    onNewNode(std::move(onNewNode)),
    onReportedAddr(std::move(onReportedAddr)),
@@ -110,9 +110,12 @@ NetworkEngine::NetworkEngine(InfoHash& myid, NetworkConfig c,
    onRefresh(std::move(onRefresh)),
    myid(myid), config(c), dht_socket(std::move(sock)), logger_(log), rd(rand),
    cache(rd),
-    rate_limiter(config.max_req_per_sec),
-    scheduler(scheduler)
-{}
+    rate_limiter(config.max_req_per_sec)
+{
+    dht_socket->setOnReceive([this](const ReceivedPacket& pkt) {
+        processMessage(pkt.data.data(), pkt.data.size(), pkt.from);
+    });
+}

 NetworkEngine::~NetworkEngine() {
    clear();
@@ -127,7 +130,7 @@ NetworkEngine::tellListener(const Sp<Node>& node, Tid socket_id, const InfoHash&
    auto nnodes = bufferNodes(node->getFamily(), hash, want, nodes, nodes6);
    try {
        if (version >= 1) {
-            sendUpdateValues(node, hash, std::move(values), scheduler.time(), ntoken, socket_id);
+            sendUpdateValues(node, hash, std::move(values), time(), ntoken, socket_id);
        } else {
            sendNodesValues(node->getAddr(), socket_id, nnodes.first, nnodes.second, std::move(values), query, ntoken);
        }
@@ -162,7 +165,7 @@ NetworkEngine::tellListenerRefreshed(const Sp<Node>& n, Tid socket_id, const Inf
        }

    pk.pack(KEY_Y); pk.pack(version >= 1 ? KEY_Q : KEY_R);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -213,7 +216,7 @@ NetworkEngine::tellListenerExpired(const Sp<Node>& n, Tid socket_id, const InfoH
        }

    pk.pack(KEY_Y); pk.pack(version >= 1 ? KEY_Q : KEY_R);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -278,7 +281,7 @@ NetworkEngine::requestStep(Sp<Request> sreq)
    if (not req.pending())
        return;

-    auto now = scheduler.time();
+    const auto& now = time();
    auto& node = *req.node;
    if (req.isExpired(now)) {
        // if (logger_)
@@ -292,18 +295,19 @@ NetworkEngine::requestStep(Sp<Request> sreq)
    }

    auto err = send(node.getAddr(), (char*)req.msg.data(), req.msg.size(), node.getReplyTime() < now - UDP_REPLY_TIME);
-    if (err == ENETUNREACH  ||
-        err == EHOSTUNREACH ||
-        err == EAFNOSUPPORT ||
-        err == EPIPE        ||
-        err == EPERM)
+    
+    if (err == asio::error::network_unreachable ||
+        err == asio::error::host_unreachable ||
+        err == asio::error::address_family_not_supported ||
+        err == asio::error::broken_pipe ||
+        err == asio::error::no_permission)
    {
        node.setExpired();
        if (not node.id)
            requests.erase(req.tid);
    } else {
        req.last_try = now;
-        if (err != EAGAIN) {
+        if (err != asio::error::try_again) {
            ++req.attempt_count;
            req.attempt_duration +=
                req.attempt_duration + uniform_duration_distribution<>(0ms, ((duration)Node::MAX_RESPONSE_TIME)/4)(rd);
@@ -312,9 +316,15 @@ NetworkEngine::requestStep(Sp<Request> sreq)
            }
        }
        std::weak_ptr<Request> wreq = sreq;
-        scheduler.add(req.last_try + req.attempt_duration, [this,wreq] {
-            if (auto req = wreq.lock())
-                requestStep(req);
+        if (!req.expiration_timer)
+            req.expiration_timer = std::make_unique<asio::steady_timer>(context());
+        req.expiration_timer->expires_at(req.last_try + req.attempt_duration);
+        req.expiration_timer->async_wait([this,wreq](const asio::error_code& ec) {
+            if (ec != asio::error::operation_aborted) {
+                syncTime();
+                if (auto req = wreq.lock())
+                    requestStep(req);
+            }
        });
    }
 }
@@ -329,7 +339,7 @@ NetworkEngine::sendRequest(const Sp<Request>& request)
    auto& node = *request->node;
    if (not node.id)
        requests.emplace(request->tid, request);
-    request->start = scheduler.time();
+    request->start = time();
    node.requested(request);
    requestStep(request);
 }
@@ -339,7 +349,7 @@ NetworkEngine::sendRequest(const Sp<Request>& request)
 bool
 NetworkEngine::rateLimit(const SockAddr& addr)
 {
-    const auto& now = scheduler.time();
+    const auto& now = time();

    // occasional IP limiter maintenance (a few times every second at max rate)
    if (limiter_maintenance++ == config.max_peer_req_per_sec) {
@@ -363,23 +373,20 @@ NetworkEngine::rateLimit(const SockAddr& addr)
 bool
 NetworkEngine::isMartian(const SockAddr& addr)
 {
-    if (addr.getPort() == 0)
+    if (addr.port() == 0)
        return true;
-    switch(addr.getFamily()) {
+    switch(addr.protocol().family()) {
    case AF_INET: {
-        const auto& sin = addr.getIPv4();
-        const uint8_t* address = (const uint8_t*)&sin.sin_addr;
-        return (address[0] == 0) ||
-              ((address[0] & 0xE0) == 0xE0);
+        const auto& sin = addr.address().to_v4().to_bytes();
+        return (sin[0] == 0) ||
+              ((sin[0] & 0xE0) == 0xE0);
    }
    case AF_INET6: {
-        if (addr.getLength() < sizeof(sockaddr_in6))
-            return true;
-        const auto& sin6 = addr.getIPv6();
-        const uint8_t* address = (const uint8_t*)&sin6.sin6_addr;
-        return address[0] == 0xFF ||
-               memcmp(address, InfoHash::zero().data(), 16) == 0 ||
-               memcmp(address, v4prefix,      12) == 0;
+        const auto& sin6 = addr.address().to_v6().to_bytes();
+        return sin6[0] == 0xFF ||
+              (sin6[0] == 0xFE && (sin6[1] & 0xC0) == 0x80) ||
+               memcmp(sin6.data(), InfoHash::zero().data(), 16) == 0 ||
+               memcmp(sin6.data(), v4prefix,      12) == 0;
    }
    default:
        return true;
@@ -404,16 +411,17 @@ NetworkEngine::isNodeBlacklisted(const SockAddr& addr) const
 void
 NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
 {
-    auto from = f.getMappedIPv4();
+    syncTime();
+    const auto& from = f;/*.getMappedIPv4();
    if (isMartian(from)) {
        if (logger_)
            logger_->w("Received packet from martian node %s", from.toString().c_str());
        return;
-    }
+    }*/

    if (isNodeBlacklisted(from)) {
-        if (logger_)
-            logger_->w("Received packet from blacklisted node %s", from.toString().c_str());
+        //if (logger_)
+        //    logger_->w("Received packet from blacklisted node %s", from.toString().c_str());
        return;
    }

@@ -435,7 +443,7 @@ NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
        return;
    }

-    const auto& now = scheduler.time();
+    const auto& now = time();

    // partial value data
    if (msg->type == MessageType::ValueData) {
@@ -447,7 +455,7 @@ NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
            rateLimit(from);
            return;
        }
-        if (!pmsg_it->second.from.equals(from)) {
+        if (pmsg_it->second.from != from) {
            if (logger_)
                logger_->d("Received partial message data from unexpected IP address");
            rateLimit(from);
@@ -465,8 +473,13 @@ NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
                } catch (...) {
                    return;
                }
-            } else
-                scheduler.add(now + RX_TIMEOUT, std::bind(&NetworkEngine::maintainRxBuffer, this, msg->tid));
+            } else {
+                pmsg_it->second.timeout->expires_at(now + RX_TIMEOUT);
+                pmsg_it->second.timeout->async_wait([this, t=msg->tid](const asio::error_code& ec) {
+                    if (ec != asio::error::operation_aborted)
+                        maintainRxBuffer(t);
+                });
+            }
        }
        return;
    }
@@ -501,8 +514,18 @@ NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
            pmsg.msg = std::move(msg);
            pmsg.start = now;
            pmsg.last_part = now;
-            scheduler.add(now + RX_MAX_PACKET_TIME, std::bind(&NetworkEngine::maintainRxBuffer, this, k));
-            scheduler.add(now + RX_TIMEOUT, std::bind(&NetworkEngine::maintainRxBuffer, this, k));
+            //scheduler.add(now + RX_MAX_PACKET_TIME, std::bind(&NetworkEngine::maintainRxBuffer, this, k));
+            //scheduler.add(now + RX_TIMEOUT, std::bind(&NetworkEngine::maintainRxBuffer, this, k));
+            pmsg.timeout = std::make_unique<asio::steady_timer>(context(), now + RX_TIMEOUT);
+            pmsg.final_timeout = std::make_unique<asio::steady_timer>(context(), now + RX_MAX_PACKET_TIME);
+            pmsg.timeout->async_wait([this,k](const asio::error_code& ec) {
+                if (ec != asio::error::operation_aborted)
+                    maintainRxBuffer(k);
+            });
+            pmsg.final_timeout->async_wait([this,k](const asio::error_code& ec) {
+                if (ec != asio::error::operation_aborted)
+                    maintainRxBuffer(k);
+            });
        } else if (logger_)
            logger_->e("Partial message with given TID %u already exists", k);
    }
@@ -511,7 +534,7 @@ NetworkEngine::processMessage(const uint8_t *buf, size_t buflen, SockAddr f)
 void
 NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& from)
 {
-    const auto& now = scheduler.time();
+    const auto& now = time();
    auto node = cache.getNode(msg->id, from, now, true, msg->is_client);

    if (msg->type == MessageType::ValueUpdate) {
@@ -568,10 +591,10 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                if (not req->setError(DhtProtocolException {msg->error_code}))
                    onError(req, DhtProtocolException {msg->error_code});
            } else {
-                if (logIncoming_)
+                /*if (logIncoming_)
                    if (logger_)
                        logger_->w(msg->id, "[node %s %s] received unknown error message %u",
-                        msg->id.toString().c_str(), from.toString().c_str(), msg->error_code);
+                        msg->id.toString().c_str(), from.toString().c_str(), msg->error_code);*/
            }
            break;
        }
@@ -583,7 +606,7 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                 or r.getType() == MessageType::Refresh) {
                    r.node->authSuccess();
                }
-                r.reply_time = scheduler.time();
+                r.reply_time = time();

                deserializeNodes(*msg, from);
                r.setDone(std::move(*msg));
@@ -615,7 +638,7 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                //     logger_->d(msg->target, node->id, "[node %s] got 'find' request for %s (%d)", node->toString().c_str(), msg->target.toString().c_str(), msg->want);
                ++in_stats.find;
                RequestAnswer answer = onFindNode(node, msg->target, msg->want);
-                auto nnodes = bufferNodes(from.getFamily(), msg->target, msg->want, answer.nodes4, answer.nodes6);
+                auto nnodes = bufferNodes(from.protocol().family(), msg->target, msg->want, answer.nodes4, answer.nodes6);
                sendNodesValues(from, msg->tid, nnodes.first, nnodes.second, {}, {}, answer.ntoken);
                break;
            }
@@ -624,7 +647,7 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                //     logger_->d(msg->info_hash, node->id, "[node %s] got 'get' request for %s", node->toString().c_str(), msg->info_hash.toString().c_str());
                ++in_stats.get;
                RequestAnswer answer = onGetValues(node, msg->info_hash, msg->want, msg->query);
-                auto nnodes = bufferNodes(from.getFamily(), msg->info_hash, msg->want, answer.nodes4, answer.nodes6);
+                auto nnodes = bufferNodes(from.protocol().family(), msg->info_hash, msg->want, answer.nodes4, answer.nodes6);
                sendNodesValues(from, msg->tid, nnodes.first, nnodes.second, answer.values, msg->query, answer.ntoken);
                break;
            }
@@ -654,7 +677,7 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
                    logger_->d(msg->info_hash, node->id, "[node %s] got 'listen' request for %s", node->toString().c_str(), msg->info_hash.toString().c_str());
                ++in_stats.listen;
                RequestAnswer answer = onListen(node, msg->info_hash, msg->token, msg->socket_id, std::move(msg->query), msg->version);
-                auto nnodes = bufferNodes(from.getFamily(), msg->info_hash, msg->want, answer.nodes4, answer.nodes6);
+                auto nnodes = bufferNodes(from.protocol().family(), msg->info_hash, msg->want, answer.nodes4, answer.nodes6);
                sendListenConfirmation(from, msg->tid);
                break;
            }
@@ -684,19 +707,23 @@ NetworkEngine::process(std::unique_ptr<ParsedMessage>&& msg, const SockAddr& fro
 void
 insertAddr(msgpack::packer<msgpack::sbuffer>& pk, const SockAddr& addr)
 {
-    size_t addr_len = std::min<size_t>(addr.getLength(),
-                     (addr.getFamily() == AF_INET) ? sizeof(in_addr) : sizeof(in6_addr));
-    void* addr_ptr = (addr.getFamily() == AF_INET) ? (void*)&addr.getIPv4().sin_addr
-                                                : (void*)&addr.getIPv6().sin6_addr;
    pk.pack("sa");
-    pk.pack_bin(addr_len);
-    pk.pack_bin_body((char*)addr_ptr, addr_len);
+    const auto& a = addr.address();
+    if (a.is_v4()) {
+        auto bytes = a.to_v4().to_bytes();
+        pk.pack_bin(bytes.size());
+        pk.pack_bin_body((char*)bytes.data(), bytes.size());
+    } else {
+        auto bytes = a.to_v6().to_bytes();
+        pk.pack_bin(bytes.size());
+        pk.pack_bin_body((char*)bytes.data(), bytes.size());
+    }
 }

-int
+asio::error_code
 NetworkEngine::send(const SockAddr& addr, const char *buf, size_t len, bool confirmed)
 {
-    return dht_socket ? dht_socket->sendTo(addr, (const uint8_t*)buf, len, confirmed) : ENOTCONN;
+    return dht_socket ? dht_socket->sendTo((const uint8_t*)buf, len, addr) : asio::error::not_connected;
 }

 Sp<Request>
@@ -712,7 +739,7 @@ NetworkEngine::sendPing(const Sp<Node>& node, RequestCb&& on_done, RequestExpire
    pk.pack(KEY_Q); pk.pack(QUERY_PING);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_Q);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -749,7 +776,7 @@ NetworkEngine::sendPong(const SockAddr& addr, Tid tid) {

    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_R);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -778,7 +805,7 @@ NetworkEngine::sendFindNode(const Sp<Node>& n, const InfoHash& target, want_t wa
    pk.pack(KEY_Q); pk.pack(QUERY_FIND);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_Q);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -831,7 +858,7 @@ NetworkEngine::sendGetValues(const Sp<Node>& n, const InfoHash& info_hash, const
    pk.pack(KEY_Q); pk.pack(QUERY_GET);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_Q);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -856,18 +883,15 @@ NetworkEngine::sendGetValues(const Sp<Node>& n, const InfoHash& info_hash, const

 SockAddr deserializeIPv4(const uint8_t* ni) {
    SockAddr addr;
-    addr.setFamily(AF_INET);
-    auto& sin = addr.getIPv4();
-    std::memcpy(&sin.sin_addr, ni, 4);
-    std::memcpy(&sin.sin_port, ni + 4, 2);
+    addr.address(asio::ip::address_v4({ni[0], ni[1], ni[2], ni[3]}));
+    addr.port(ntohs(*reinterpret_cast<const uint16_t*>(ni + 4)));
    return addr;
 }
 SockAddr deserializeIPv6(const uint8_t* ni) {
    SockAddr addr;
-    addr.setFamily(AF_INET6);
-    auto& sin6 = addr.getIPv6();
-    std::memcpy(&sin6.sin6_addr, ni, 16);
-    std::memcpy(&sin6.sin6_port, ni + 16, 2);
+    addr.address(asio::ip::address_v6({ni[0], ni[1], ni[2], ni[3], ni[4], ni[5], ni[6], ni[7],
+                                       ni[8], ni[9], ni[10], ni[11], ni[12], ni[13], ni[14], ni[15]}));
+    addr.port(ntohs(*reinterpret_cast<const uint16_t*>(ni + 16)));
    return addr;
 }

@@ -877,21 +901,21 @@ NetworkEngine::deserializeNodes(ParsedMessage& msg, const SockAddr& from) {
        throw DhtProtocolException {DhtProtocolException::WRONG_NODE_INFO_BUF_LEN};
    }
    // deserialize nodes
-    const auto& now = scheduler.time();
+    const auto& now = time();
    for (unsigned i = 0, n = msg.nodes4_raw.size() / NODE4_INFO_BUF_LEN; i < n; i++) {
        const uint8_t* ni = msg.nodes4_raw.data() + i * NODE4_INFO_BUF_LEN;
        const auto& ni_id = *reinterpret_cast<const InfoHash*>(ni);
        if (ni_id == myid)
            continue;
        SockAddr addr = deserializeIPv4(ni + ni_id.size());
-        if (addr.isLoopback() and from.getFamily() == AF_INET) {
-            auto port = addr.getPort();
+        if (addr.address().is_loopback() and from.protocol().family() == AF_INET) {
+            auto port = addr.port();
            addr = from;
-            addr.setPort(port);
+            addr.port(port);
        }
        if (isMartian(addr) || isNodeBlacklisted(addr))
            continue;
-        msg.nodes4.emplace_back(cache.getNode(ni_id, addr, now, false));
+        msg.nodes4.emplace_back(cache.getNode(ni_id, std::move(addr), now, false));
        onNewNode(msg.nodes4.back(), 0);
    }
    for (unsigned i = 0, n = msg.nodes6_raw.size() / NODE6_INFO_BUF_LEN; i < n; i++) {
@@ -900,14 +924,14 @@ NetworkEngine::deserializeNodes(ParsedMessage& msg, const SockAddr& from) {
        if (ni_id == myid)
            continue;
        SockAddr addr = deserializeIPv6(ni + ni_id.size());
-        if (addr.isLoopback() and from.getFamily() == AF_INET6) {
-            auto port = addr.getPort();
+        if (addr.address().is_loopback() and from.protocol().family() == AF_INET6) {
+            auto port = addr.port();
            addr = from;
-            addr.setPort(port);
+            addr.port(port);
        }
        if (isMartian(addr) || isNodeBlacklisted(addr))
            continue;
-        msg.nodes6.emplace_back(cache.getNode(ni_id, addr, now, false));
+        msg.nodes6.emplace_back(cache.getNode(ni_id, std::move(addr), now, false));
        onNewNode(msg.nodes6.back(), 0);
    }
 }
@@ -1014,7 +1038,7 @@ NetworkEngine::sendNodesValues(const SockAddr& addr, Tid tid, const Blob& nodes,

    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_R);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1039,21 +1063,25 @@ NetworkEngine::bufferNodes(sa_family_t af, const InfoHash& id, std::vector<Sp<No
        bnodes.resize(NODE4_INFO_BUF_LEN * nnode);
        for (size_t i=0; i<nnode; i++) {
            const Node& n = *nodes[i];
-            const auto& sin = n.getAddr().getIPv4();
+            const auto& sin = n.getAddr();
+            auto port = htons(sin.port());
+            auto addr = sin.address().to_v4().to_bytes();
            auto dest = bnodes.data() + NODE4_INFO_BUF_LEN * i;
            memcpy(dest, n.id.data(), HASH_LEN);
-            memcpy(dest + HASH_LEN, &sin.sin_addr, sizeof(in_addr));
-            memcpy(dest + HASH_LEN + sizeof(in_addr), &sin.sin_port, sizeof(in_port_t));
+            memcpy(dest + HASH_LEN, addr.data(), sizeof(in_addr));
+            memcpy(dest + HASH_LEN + sizeof(in_addr), &port, sizeof(in_port_t));
        }
    } else if (af == AF_INET6) {
        bnodes.resize(NODE6_INFO_BUF_LEN * nnode);
        for (size_t i=0; i<nnode; i++) {
            const Node& n = *nodes[i];
-            const auto& sin6 = n.getAddr().getIPv6();
+            const auto& sin6 = n.getAddr();
+            auto port = htons(sin6.port());
+            auto addr = sin6.address().to_v6().to_bytes();
            auto dest = bnodes.data() + NODE6_INFO_BUF_LEN * i;
            memcpy(dest, n.id.data(), HASH_LEN);
-            memcpy(dest + HASH_LEN, &sin6.sin6_addr, sizeof(in6_addr));
-            memcpy(dest + HASH_LEN + sizeof(in6_addr), &sin6.sin6_port, sizeof(in_port_t));
+            memcpy(dest + HASH_LEN, addr.data(), sizeof(in6_addr));
+            memcpy(dest + HASH_LEN + sizeof(in6_addr), &port, sizeof(in_port_t));
        }
    }
    return bnodes;
@@ -1105,7 +1133,7 @@ NetworkEngine::sendListen(const Sp<Node>& n,
    pk.pack(KEY_Q); pk.pack(QUERY_LISTEN);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_Q);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1138,7 +1166,7 @@ NetworkEngine::sendListenConfirmation(const SockAddr& addr, Tid tid) {

    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_R);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1160,7 +1188,7 @@ NetworkEngine::sendAnnounceValue(const Sp<Node>& n,
    msgpack::packer<msgpack::sbuffer> pk(&buffer);
    pk.pack_map(5+(config.network?1:0));

-    bool add_created = created < scheduler.time();
+    bool add_created = created < time();
    pk.pack(KEY_A); pk.pack_map(add_created ? 5 : 4);
      pk.pack(KEY_REQ_ID);     pk.pack(myid);
      pk.pack(KEY_REQ_H);      pk.pack(infohash);
@@ -1174,7 +1202,7 @@ NetworkEngine::sendAnnounceValue(const Sp<Node>& n,
    pk.pack(KEY_Q);   pk.pack(QUERY_PUT);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y);   pk.pack(KEY_Q);
-    pk.pack(KEY_UA);  pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA);  pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1246,13 +1274,13 @@ NetworkEngine::sendUpdateValues(const Sp<Node>& n,
    msgpack::packer<msgpack::sbuffer> pk(&buffer);
    pk.pack_map(5+(config.network?1:0));

-    pk.pack(KEY_A); pk.pack_map((created < scheduler.time() ? 7 : 6));
+    pk.pack(KEY_A); pk.pack_map((created < time() ? 7 : 6));
      pk.pack(KEY_REQ_ID);     pk.pack(myid);
      pk.pack(KEY_VERSION);    pk.pack(1);
      pk.pack(KEY_REQ_H);      pk.pack(infohash);
      pk.pack(KEY_REQ_SID);   pk.pack(sid);
      auto v = packValueHeader(buffer, begin, end);
-      if (created < scheduler.time()) {
+      if (created < time()) {
          pk.pack(KEY_REQ_CREATION);
          pk.pack(to_time_t(created));
      }
@@ -1261,7 +1289,7 @@ NetworkEngine::sendUpdateValues(const Sp<Node>& n,
    pk.pack(KEY_Q);   pk.pack(QUERY_UPDATE);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y);   pk.pack(KEY_Q);
-    pk.pack(KEY_UA);  pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA);  pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1300,7 +1328,7 @@ NetworkEngine::sendRefreshValue(const Sp<Node>& n,
    pk.pack(KEY_Q); pk.pack(QUERY_REFRESH);
    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_Q);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1344,7 +1372,7 @@ NetworkEngine::sendValueAnnounced(const SockAddr& addr, Tid tid, Value::Id vid)

    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_R);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1374,7 +1402,7 @@ NetworkEngine::sendError(const SockAddr& addr,

    pk.pack(KEY_TID); pk.pack(tid);
    pk.pack(KEY_Y); pk.pack(KEY_E);
-    pk.pack(KEY_UA); pk.pack(OPENDHT_UA);
+    pk.pack(KEY_UA); pk.pack(my_v);
    if (config.network) {
        pk.pack(KEY_NETID); pk.pack(config.network);
    }
@@ -1387,11 +1415,11 @@ NetworkEngine::maintainRxBuffer(Tid tid)
 {
    auto msg = partial_messages.find(tid);
    if (msg != partial_messages.end()) {
-        const auto& now = scheduler.time();
+        const auto& now = time();
        if (msg->second.start + RX_MAX_PACKET_TIME < now
         || msg->second.last_part + RX_TIMEOUT < now) {
-            if (logger_)
-                logger_->w("Dropping expired partial message from %s", msg->second.from.toString().c_str());
+            //if (logger_)
+            //    logger_->w("Dropping expired partial message from %s", msg->second.from.toString().c_str());
            partial_messages.erase(msg);
        }
    }
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -34,330 +34,84 @@

 namespace dht {
 namespace net {
+/*

-int
-bindSocket(const SockAddr& addr, SockAddr& bound)
+UdpSocket::UdpSocket(in_port_t port, const std::shared_ptr<Logger>& l)
+    : logger(l)
 {
-    bool is_ipv6 = addr.getFamily() == AF_INET6;
-    int sock = socket(is_ipv6 ? PF_INET6 : PF_INET, SOCK_DGRAM, 0);
-    if (sock < 0)
-        throw DhtException(std::string("Can't open socket: ") + strerror(sock));
-    int set = 1;
-#ifdef SO_NOSIGPIPE
-    setsockopt(sock, SOL_SOCKET, SO_NOSIGPIPE, (const char*)&set, sizeof(set));
-#endif
-    if (is_ipv6)
-        setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*)&set, sizeof(set));
-    net::setNonblocking(sock);
-    int rc = bind(sock, addr.get(), addr.getLength());
-    if (rc < 0) {
-        rc = errno;
-        close(sock);
-        throw DhtException("Can't bind socket on " + addr.toString() + " " + strerror(rc));
+    asio::io_service io_service;
+    asio::ip::udp::endpoint endpoint(asio::ip::udp::v4(), port);
+    s4.open(endpoint.protocol());
+    s4.set_option(asio::ip::udp::socket::reuse_address(true));
+    s4.bind(endpoint);
+    s4.non_blocking(true);
+
+    try {
+        asio::ip::udp::endpoint endpoint(asio::ip::udp::v6(), port);
+        s6.open(endpoint.protocol());
+        s6.set_option(asio::ip::udp::socket::reuse_address(true));
+        s6.bind(endpoint);
+        s6.non_blocking(true);
+    } catch (...) {
    }
-    sockaddr_storage ss;
-    socklen_t ss_len = sizeof(ss);
-    getsockname(sock, (sockaddr*)&ss, &ss_len);
-    bound = {ss, ss_len};
-    return sock;
 }

-bool
-setNonblocking(int fd, bool nonblocking)
+UdpSocket::UdpSocket(const SockAddr& bind4, const SockAddr& bind6, const std::shared_ptr<Logger>& l)
+    : logger(l)
 {
-#ifdef _WIN32
-    unsigned long mode = !!nonblocking;
-    int rc = ioctlsocket(fd, FIONBIO, &mode);
-    return rc == 0;
-#else
-    int rc = fcntl(fd, F_GETFL, 0);
-    if (rc < 0)
-        return false;
-    rc = fcntl(fd, F_SETFL, nonblocking ? (rc | O_NONBLOCK) : (rc & ~O_NONBLOCK));
-    return rc >= 0;
-#endif
-}
-
-#ifdef _WIN32
-void udpPipe(int fds[2])
-{
-    int lst = socket(AF_INET, SOCK_DGRAM, 0);
-    if (lst < 0)
-        throw DhtException(std::string("Can't open socket: ") + strerror(WSAGetLastError()));
-    sockaddr_in inaddr;
-    sockaddr addr;
-    memset(&inaddr, 0, sizeof(inaddr));
-    memset(&addr, 0, sizeof(addr));
-    inaddr.sin_family = AF_INET;
-    inaddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-    inaddr.sin_port = 0;
-    int yes = 1;
-    setsockopt(lst, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(yes));
-    int rc = bind(lst, (sockaddr*)&inaddr, sizeof(inaddr));
-    if (rc < 0) {
-        close(lst);
-        throw DhtException("Can't bind socket on " + print_addr((sockaddr*)&inaddr, sizeof(inaddr)) + " " + strerror(rc));
-    }
-    socklen_t len = sizeof(addr);
-    getsockname(lst, &addr, &len);
-    fds[0] = lst;
-    fds[1] = socket(AF_INET, SOCK_DGRAM, 0);
-    connect(fds[1], &addr, len);
-}
-#endif
-
-UdpSocket::UdpSocket(in_port_t port, const std::shared_ptr<Logger>& l) : logger(l) {
-    SockAddr bind4;
-    bind4.setFamily(AF_INET);
-    bind4.setPort(port);
-    SockAddr bind6;
-    bind6.setFamily(AF_INET6);
-    bind6.setPort(port);
-    std::lock_guard<std::mutex> lk(lock);
-    openSockets(bind4, bind6);
-}
-
-UdpSocket::UdpSocket(const SockAddr& bind4, const SockAddr& bind6, const std::shared_ptr<Logger>& l) : logger(l)
-{
-    std::lock_guard<std::mutex> lk(lock);
-    openSockets(bind4, bind6);
-}
-
-UdpSocket::~UdpSocket() {
-    stop();
-    if (rcv_thread.joinable())
-        rcv_thread.join();
-}
-
-int
-UdpSocket::sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied) {
-    if (not dest)
-        return EFAULT;
-
-    int s;
-    switch (dest.getFamily()) {
-    case AF_INET:  s = s4; break;
-    case AF_INET6: s = s6; break;
-    default:       s = -1; break;
+    if (bind4.isSet()) {
+        asio::io_service io_service;
+        asio::ip::udp::endpoint endpoint(asio::ip::udp::v4(), bind4.getPort());
+        s4.open(endpoint.protocol());
+        s4.set_option(asio::ip::udp::socket::reuse_address(true));
+        s4.bind(endpoint);
+        s4.non_blocking(true);
    }

-    if (s < 0)
-        return EAFNOSUPPORT;
-
-    int flags = 0;
-#ifdef MSG_CONFIRM
-    if (replied)
-        flags |= MSG_CONFIRM;
-#else
-    (void) replied;
-#endif
-#ifdef MSG_NOSIGNAL
-    flags |= MSG_NOSIGNAL;
-#endif
-
-    if (sendto(s, (const char*)data, size, flags, dest.get(), dest.getLength()) == -1) {
-        int err = errno;
-        if (logger)
-            logger->d("Can't send message to %s: %s", dest.toString().c_str(), strerror(err));
-        if (err == EPIPE || err == ENOTCONN || err == ECONNRESET) {
-            std::lock_guard<std::mutex> lk(lock);
-            auto bind4 = std::move(bound4), bind6 = std::move(bound6);
-            openSockets(bind4, bind6);
-            return sendTo(dest, data, size, false);
+    if (bind6.isSet()) {
+        try {
+            asio::io_service io_service;
+            asio::ip::udp::endpoint endpoint(asio::ip::udp::v6(), bind6.getPort());
+            s6.open(endpoint.protocol());
+            s6.set_option(asio::ip::udp::socket::reuse_address(true));
+            s6.bind(endpoint);
+            s6.non_blocking(true);
+        } catch (...) {
        }
-        return err;
    }
-    return 0;
 }

-void
-UdpSocket::openSockets(const SockAddr& bind4, const SockAddr& bind6)
+UdpSocket::~UdpSocket()
 {
    stop();
-    if (rcv_thread.joinable())
-        rcv_thread.join();
-
-    int stopfds[2];
-#ifndef _WIN32
-    auto status = pipe(stopfds);
-    if (status == -1) {
-        throw DhtException(std::string("Can't open pipe: ") + strerror(errno));
-    }
-#else
-    udpPipe(stopfds);
-#endif
-    int stop_readfd = stopfds[0];
-
-    stopfd = stopfds[1];
-    s4 = -1;
-    s6 = -1;
-
-    bound4 = {};
-    if (bind4) {
-        try {
-            s4 = bindSocket(bind4, bound4);
-        } catch (const DhtException& e) {
-            if (logger)
-                logger->e("Can't bind inet socket: %s", e.what());
-        }
-    }
-
-#if 1
-    bound6 = {};
-    if (bind6) {
-        if (bind6.getPort() == 0) {
-            // Attempt to use the same port as IPv4 with IPv6
-            if (auto p4 = bound4.getPort()) {
-                auto b6 = bind6;
-                b6.setPort(p4);
-                try {
-                    s6 = bindSocket(b6, bound6);
-                } catch (const DhtException& e) {
-                    if (logger)
-                        logger->e("Can't bind inet6 socket: %s", e.what());
-                }
-            }
-        }
-        if (s6 == -1) {
-            try {
-                s6 = bindSocket(bind6, bound6);
-            } catch (const DhtException& e) {
-                if (logger)
-                    logger->e("Can't bind inet6 socket: %s", e.what());
-            }
-        }
-    }
-#endif
-
-    if (s4 == -1 && s6 == -1) {
-        throw DhtException("Can't bind socket");
-    }
-
-    running = true;
-    rcv_thread = std::thread([this, stop_readfd, ls4=s4, ls6=s6]() mutable {
-        int selectFd = std::max({ls4, ls6, stop_readfd}) + 1;
-        try {
-            while (running) {
-                fd_set readfds;
-
-                FD_ZERO(&readfds);
-                FD_SET(stop_readfd, &readfds);
-                if(ls4 >= 0)
-                    FD_SET(ls4, &readfds);
-                if(ls6 >= 0)
-                    FD_SET(ls6, &readfds);
-
-                int rc = select(selectFd, &readfds, nullptr, nullptr, nullptr);
-                if (rc < 0) {
-                    if (errno != EINTR) {
-                        if (logger)
-                            logger->e("Select error: %s", strerror(errno));
-                        std::this_thread::sleep_for(std::chrono::seconds(1));
-                    }
-                }
-
-                if (not running)
-                    break;
-
-                if (rc > 0) {
-                    std::array<uint8_t, 1024 * 64> buf;
-                    sockaddr_storage from;
-                    socklen_t from_len = sizeof(from);
-
-                    if (FD_ISSET(stop_readfd, &readfds)) {
-                        if (recv(stop_readfd, (char*)buf.data(), buf.size(), 0) < 0) {
-                            if (logger)
-                                logger->e("Got stop packet error: %s", strerror(errno));
-                            break;
-                        }
-                    }
-                    else if (ls4 >= 0 && FD_ISSET(ls4, &readfds))
-                        rc = recvfrom(ls4, (char*)buf.data(), buf.size(), 0, (sockaddr*)&from, &from_len);
-                    else if (ls6 >= 0 && FD_ISSET(ls6, &readfds))
-                        rc = recvfrom(ls6, (char*)buf.data(), buf.size(), 0, (sockaddr*)&from, &from_len);
-                    else
-                        continue;
-
-                    if (rc > 0) {
-                        auto pkts = getNewPacket();
-                        auto& pkt = pkts.front();
-                        pkt.data.insert(pkt.data.end(), buf.begin(), buf.begin()+rc);
-                        pkt.from = {from, from_len};
-                        pkt.received = clock::now();
-                        onReceived(std::move(pkts));
-                    } else if (rc == -1) {
-                        if (logger)
-                            logger->e("Error receiving packet: %s", strerror(errno));
-                        int err = errno;
-                        if (err == EPIPE || err == ENOTCONN || err == ECONNRESET) {
-                            if (not running) break;
-                            std::unique_lock<std::mutex> lk(lock, std::try_to_lock);
-                            if (lk.owns_lock()) {
-                                if (not running) break;
-                                if (ls4 >= 0) {
-                                    close(ls4);
-                                    try {
-                                        ls4 = bindSocket(bound4, bound4);
-                                    } catch (const DhtException& e) {
-                                        if (logger)
-                                            logger->e("Can't bind inet socket: %s", e.what());
-                                    }
-                                }
-                                if (ls6 >= 0) {
-                                    close(ls6);
-                                    try {
-                                        ls6 = bindSocket(bound6, bound6);
-                                    } catch (const DhtException& e) {
-                                        if (logger)
-                                            logger->e("Can't bind inet6 socket: %s", e.what());
-                                    }
-                                }
-                                if (ls4 < 0 && ls6 < 0)
-                                    break;
-                                s4 = ls4;
-                                s6 = ls6;
-                                selectFd = std::max({ls4, ls6, stop_readfd}) + 1;
-                            } else {
-                                break;
-                            }
-                        }
-                    }
-                }
-            }
-        } catch (const std::exception& e) {
-            if (logger)
-                logger->e("Error in UdpSocket rx thread: %s", e.what());
-        }
-        if (ls4 >= 0)
-            close(ls4);
-        if (ls6 >= 0)
-            close(ls6);
-        if (stop_readfd != -1)
-            close(stop_readfd);
-        if (stopfd != -1)
-            close(stopfd);
-        std::unique_lock<std::mutex> lk(lock, std::try_to_lock);
-        if (lk.owns_lock()) {
-            s4 = -1;
-            s6 = -1;
-            bound4 = {};
-            bound6 = {};
-            stopfd = -1;
-        }
-    });
 }

-void
-UdpSocket::stop()
+int UdpSocket::sendTo(const SockAddr& dest, const uint8_t* data, size_t size, bool replied)
 {
-    if (running.exchange(false)) {
-        auto sfd = stopfd;
-        if (sfd != -1 && write(sfd, "\0", 1) == -1) {
-            if (logger)
-                logger->e("Can't write to stop fd");
-        }
+    asio::ip::udp::socket* sock = nullptr;
+    if (dest.isV4())
+        sock = &s4;
+    else if (dest.isV6())
+        sock = &s6;
+    else
+        return -1;
+
+    try {
+        asio::ip::udp::endpoint endpoint(dest.toAsio());
+        return sock->send_to(asio::buffer(data, size), endpoint);
+    } catch (...) {
+        return -1;
    }
 }

+void UdpSocket::stop()
+{
+    s4.cancel();
+    s4.close();
+    s6.cancel();
+    s6.close();
+}
+*/
+
 }
 }
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -167,7 +167,7 @@ Node::toString() const

 std::ostream& operator<< (std::ostream& s, const Node& h)
 {
-    s << h.id << " " << h.addr.toString();
+    s << h.id << " " << h.addr;
    return s;
 }

@@ -188,7 +188,8 @@ NodeExport::msgpack_unpack(msgpack::object o)
    if (maddr.via.bin.size > sizeof(sockaddr_storage))
        throw msgpack::type_error();
    id.msgpack_unpack(o.via.map.ptr[0].val);
-    addr = {(const sockaddr*)maddr.via.bin.ptr, (socklen_t)maddr.via.bin.size};
+    //addr = {(const sockaddr*)maddr.via.bin.ptr, (socklen_t)maddr.via.bin.size};
+    // TODO
 }

 std::ostream& operator<< (std::ostream& s, const NodeExport& h)
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -20,8 +20,8 @@

 namespace dht {

-constexpr size_t CLEANUP_MAX_NODES {4 * 1024};
-constexpr size_t CLEANUP_FREQ {4 * 1024};
+constexpr size_t CLEANUP_MAX_NODES {1024};
+constexpr size_t CLEANUP_FREQ {1024};

 NodeCache::~NodeCache()
 {
@@ -38,7 +38,7 @@ Sp<Node>
 NodeCache::getNode(const InfoHash& id, const SockAddr& addr, time_point now, bool confirm, bool client) {
    if (not id)
        return std::make_shared<Node>(id, addr, rd, client);
-    return cache(addr.getFamily()).getNode(id, addr, now, confirm, client, rd);
+    return cache(addr.protocol().family()).getNode(id, addr, now, confirm, client, rd);
 }

 std::vector<Sp<Node>>
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -18,7 +18,6 @@
 #pragma once

 #include "infohash.h"
-#include "sockaddr.h"
 #include "net.h"

 #include <map>
@@ -313,15 +312,29 @@ ParsedMessage::msgpack_unpack(const msgpack::object& msg)
            throw msgpack::type_error();
        auto l = parsedReq.sa->via.bin.size;
        if (l == sizeof(in_addr)) {
-            addr.setFamily(AF_INET);
-            auto& a = addr.getIPv4();
-            a.sin_port = 0;
-            std::copy_n(parsedReq.sa->via.bin.ptr, l, (char*)&a.sin_addr);
+            addr = {asio::ip::address_v4({
+                (uint8_t)parsedReq.sa->via.bin.ptr[0], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[1], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[2], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[3]}), 0};
        } else if (l == sizeof(in6_addr)) {
-            addr.setFamily(AF_INET6);
-            auto& a = addr.getIPv6();
-            a.sin6_port = 0;
-            std::copy_n(parsedReq.sa->via.bin.ptr, l, (char*)&a.sin6_addr);
+            addr = {asio::ip::address_v6({
+                (uint8_t)parsedReq.sa->via.bin.ptr[0], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[1], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[2], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[3], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[4], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[5], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[6], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[7], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[8], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[9], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[10], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[11], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[12], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[13], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[14], 
+                (uint8_t)parsedReq.sa->via.bin.ptr[15]}), 0};
        }
    } else
        addr = {};
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Mingrui Zhang <mingrui.zhang@savoirfairelinux.com>
 *              Vsevolod Ivanov <vsevolod.ivanov@savoirfairelinux.com>
 *              Adrien Béraud <adrien.beraud@savoirfairelinux.com>
@@ -19,7 +19,6 @@
 */

 #include "peer_discovery.h"
-#include "network_utils.h"
 #include "utils.h"

 #include <asio.hpp>
@@ -153,7 +152,7 @@ PeerDiscovery::DomainPeerDiscovery::loopListener()
                            return;
                    }
                    if (cb)
-                        cb(std::move(o.val), SockAddr{ receiveFrom_.data(), (socklen_t)receiveFrom_.size() });
+                        cb(std::move(o.val), receiveFrom_);
                }
            } else {
                throw msgpack::type_error{};
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *              Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *
@@ -21,6 +21,7 @@

 #include "net.h"
 #include "value.h"
+#include <asio/steady_timer.hpp>

 namespace dht {
 struct Node;
@@ -140,6 +141,7 @@ private:
    duration attempt_duration {((duration)Node::MAX_RESPONSE_TIME)/2};
    time_point start {time_point::min()};      /* time when the request is created. */
    time_point last_try {time_point::min()};   /* time of the last attempt to process the request. */
+    std::unique_ptr<asio::steady_timer> expiration_timer;

    std::function<void(const Request&, ParsedMessage&&)> on_done {};
    std::function<bool(const Request&, DhtProtocolException&&)> on_error {};
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -23,6 +23,10 @@
 #include "listener.h"
 #include "value_cache.h"
 #include "op_cache.h"
+#include "node.h"
+#include "dht.h"
+
+#include <asio/steady_timer.hpp>

 namespace dht {

@@ -52,7 +56,7 @@ struct Dht::SearchNode {

    struct AnnounceStatus {
        Sp<net::Request> req {};
-        Sp<Scheduler::Job> refresh {};
+        std::unique_ptr<asio::steady_timer> refresh {};
        time_point refresh_time;
        AnnounceStatus(){};
        AnnounceStatus(Sp<net::Request> r, time_point t): req(std::move(r)), refresh_time(t)
@@ -72,8 +76,9 @@ struct Dht::SearchNode {

    struct CachedListenStatus {
        ValueCache cache;
-        Sp<Scheduler::Job> refresh {};
-        Sp<Scheduler::Job> cacheExpirationJob {};
+        std::unique_ptr<asio::steady_timer> refresh {};
+        std::unique_ptr<asio::steady_timer> cacheExpirationJob {};
+        std::function<void()> onCacheExpired {};
        Sp<net::Request> req {};
        Tid socketId {0};
        CachedListenStatus(ValueStateCallback&& cb, SyncCallback scb, Tid sid)
@@ -85,6 +90,14 @@ struct Dht::SearchNode {
                req->node->closeSocket(socketId);
            }
        }
+
+        void scheduleCacheExpired(const time_point& t) {
+            cacheExpirationJob->expires_at(t);
+            cacheExpirationJob->async_wait([cb = onCacheExpired](const asio::error_code &ec){
+                if (ec != asio::error::operation_aborted)
+                    cb();
+            });
+        }
    };
    using NodeListenerStatus = std::map<Sp<Query>, CachedListenStatus>;

@@ -101,7 +114,7 @@ struct Dht::SearchNode {

    Blob token {};                                 /* last token the node sent to us after a get request */
    time_point last_get_reply {time_point::min()}; /* last time received valid token */
-    Sp<Scheduler::Job> syncJob {};
+    std::unique_ptr<asio::steady_timer> syncJob {};
    bool candidate {false};                        /* A search node is candidate if the search is/was synced and this
                                                      node is a new candidate for inclusion. */

@@ -238,18 +251,17 @@ struct Dht::SearchNode {
        getStatus.clear();
    }

-    void onValues(const Sp<Query>& q, net::RequestAnswer&& answer, const TypeStore& types, Scheduler& scheduler)
+    void onValues(const Sp<Query>& q, net::RequestAnswer&& answer, const TypeStore& types, const time_point& now)
    {
        auto l = listenStatus.find(q);
        if (l != listenStatus.end()) {
-            auto next = l->second.cache.onValues(answer.values,
+            l->second.scheduleCacheExpired(l->second.cache.onValues(answer.values,
                                     answer.refreshed_values,
-                                     answer.expired_values, types, scheduler.time());
-            scheduler.edit(l->second.cacheExpirationJob, next);
+                                     answer.expired_values, types, now));
        }
    }

-    void onListenSynced(const Sp<Query>& q, bool synced = true, Sp<Scheduler::Job> refreshJob = {}) {
+    void onListenSynced(const Sp<Query>& q, bool synced = true, std::unique_ptr<asio::steady_timer> refreshJob = {}) {
        auto l = listenStatus.find(q);
        if (l != listenStatus.end()) {
            if (l->second.refresh)
@@ -259,11 +271,10 @@ struct Dht::SearchNode {
        }
    }

-    void expireValues(const Sp<Query>& q, Scheduler& scheduler) {
+    void expireValues(const Sp<Query>& q, const time_point& now) {
        auto l = listenStatus.find(q);
        if (l != listenStatus.end()) {
-            auto next = l->second.cache.expireValues(scheduler.time());
-            scheduler.edit(l->second.cacheExpirationJob, next);
+            l->second.scheduleCacheExpired(l->second.cache.expireValues(now));
        }
    }

@@ -409,7 +420,17 @@ struct Dht::Search {
    uint16_t tid;
    time_point refill_time {time_point::min()};
    time_point step_time {time_point::min()};           /* the time of the last search step */
-    Sp<Scheduler::Job> nextSearchStep {};
+    std::unique_ptr<asio::steady_timer> nextSearchStep {};
+    std::function<void()> onSearchStep {};
+    void scheduleStep(const time_point& now) {
+        if (nextSearchStep) {
+            nextSearchStep->expires_at(now);
+            nextSearchStep->async_wait([cb=onSearchStep](const asio::error_code &ec){
+                if (ec != asio::error::operation_aborted)
+                    cb();
+            });
+        }
+    }

    bool expired {false};              /* no node, or all nodes expired */
    bool done {false};                 /* search is over, cached for later */
@@ -432,7 +453,9 @@ struct Dht::Search {

    /* Cache */
    SearchCache cache;
-    Sp<Scheduler::Job> opExpirationJob;
+    //std::unique_ptr<asio::steady_timer> opExpirationJob;
+    std::unique_ptr<asio::steady_timer> opExpirationJob {};
+

    ~Search() {
        if (opExpirationJob)
@@ -485,8 +508,6 @@ struct Dht::Search {
     */
    bool isSynced(time_point now) const;

-    unsigned syncLevel(time_point now) const;
-
    /**
     * Get the time of the last "get" operation performed on this search,
     * or time_point::min() if no such operation have been performed.
@@ -539,46 +560,57 @@ struct Dht::Search {
    bool isAnnounced(Value::Id id) const;
    bool isListening(time_point now, duration exp) const;

-    void get(const Value::Filter& f, const Sp<Query>& q, const QueryCallback& qcb, const GetCallback& gcb, const DoneCallback& dcb, Scheduler& scheduler) {
+    void get(const Value::Filter& f, const Sp<Query>& q, const QueryCallback& qcb, const GetCallback& gcb, const DoneCallback& dcb, const time_point& now) {
        if (gcb or qcb) {
            if (not cache.get(f, q, gcb, dcb)) {
-                const auto& now = scheduler.time();
                callbacks.emplace(now, Get { now, f, q, qcb, gcb, dcb });
-                scheduler.edit(nextSearchStep, now);
+                scheduleStep(now);
            }
        }
    }

-    size_t listen(const ValueCallback& cb, Value::Filter&& f, const Sp<Query>& q, Scheduler& scheduler) {
+    size_t listen(const ValueCallback& cb, Value::Filter&& f, const Sp<Query>& q, const time_point& now) {
        //DHT_LOG.e(id, "[search %s IPv%c] listen", id.toString().c_str(), (af == AF_INET) ? '4' : '6');
        return cache.listen(cb, q, std::move(f), [&](const Sp<Query>& q, ValueCallback vcb, SyncCallback scb){
            done = false;
            auto token = ++listener_token;
            listeners.emplace(token, SearchListener{q, vcb, scb});
-            scheduler.edit(nextSearchStep, scheduler.time());
+            scheduleStep(now);
            return token;
        });
    }

-    void cancelListen(size_t token, Scheduler& scheduler) {
-        cache.cancelListen(token, scheduler.time());
-        if (not opExpirationJob)
-            opExpirationJob = scheduler.add(time_point::max(), [this,&scheduler]{
-                auto nextExpire = cache.expire(scheduler.time(), [&](size_t t){
-                    const auto& ll = listeners.find(t);
-                    if (ll != listeners.cend()) {
-                        auto query = ll->second.query;
-                        listeners.erase(ll);
-                        if (listeners.empty()) {
-                            for (auto& sn : nodes) sn->cancelListen();
-                        } else if (query) {
-                            for (auto& sn : nodes) sn->cancelListen(query);
-                        }
-                    }
-                });
-                scheduler.edit(opExpirationJob, nextExpire);
-            });
-        scheduler.edit(opExpirationJob, cache.getExpiration());
+    time_point expireListeners(const time_point& now) {
+        return cache.expire(now, [&](size_t t){
+            const auto& ll = listeners.find(t);
+            if (ll != listeners.cend()) {
+                auto query = ll->second.query;
+                listeners.erase(ll);
+                if (listeners.empty()) {
+                    for (auto& sn : nodes) sn->cancelListen();
+                } else if (query) {
+                    for (auto& sn : nodes) sn->cancelListen(query);
+                }
+            }
+        });
+    }
+
+    void scheduleListenerExpiration() {
+        opExpirationJob->async_wait([this](const asio::error_code &ec){
+            if (ec != asio::error::operation_aborted) {
+                opExpirationJob->expires_at(expireListeners(clock::now()));
+                scheduleListenerExpiration();
+            }
+        });
+    }
+
+    void cancelListen(size_t token, const time_point& now) {
+        if (cache.cancelListen(token, now)) {
+            if (opExpirationJob) {
+                opExpirationJob->expires_at(cache.getExpiration());
+                scheduleListenerExpiration();
+            }
+        }
    }

    std::vector<Sp<Value>> getPut() const {
@@ -854,17 +886,12 @@ Dht::Search::insertNode(const Sp<Node>& snode, time_point now, const Blob& token
            expired = false;
        }

-        while (nodes.size() - bad > SEARCH_NODES) {
-            bool removingNode = nodes.back()->node == snode;
+        while (nodes.size() - bad >  SEARCH_NODES) {
            if (not expired and nodes.back()->isBad())
                bad--;
            nodes.pop_back();
-            if (removingNode)
-                return false;
        }
    }
-    if (n == nodes.end() or not *n)
-        return false;
    if (not token.empty()) {
        (*n)->candidate = false;
        (*n)->last_get_reply = now;
@@ -902,21 +929,6 @@ Dht::Search::isSynced(time_point now) const
    return i > 0;
 }

-unsigned
-Dht::Search::syncLevel(time_point now) const
-{
-    unsigned i = 0;
-    for (const auto& n : nodes) {
-        if (n->isBad())
-            continue;
-        if (not n->isSynced(now))
-            return i;
-        if (++i == TARGET_NODES)
-            break;
-    }
-    return i;
-}
-
 time_point
 Dht::Search::getLastGetTime(const Query& q) const
 {
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Authors: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *           Simon Désaulniers <simon.desaulniers@savoirfairelinux.com>
 *           Sébastien Blin <sebastien.blin@savoirfairelinux.com>
@@ -66,9 +66,7 @@ SecureDht::SecureDht(std::unique_ptr<DhtInterface> dht, SecureDht::Config conf,
    }
 }

-SecureDht::~SecureDht(){
-    dht_.reset();
-}
+SecureDht::~SecureDht() = default;

 ValueType
 SecureDht::secureType(ValueType&& type)
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *  Author(s) : Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
@@ -72,7 +72,7 @@ struct ValueStorage {
    Sp<Value> data {};
    time_point created {};
    time_point expiration {};
-    Sp<Scheduler::Job> expiration_job {};
+    std::unique_ptr<asio::steady_timer> expiration_job {};
    StorageBucket* store_bucket {nullptr};

    ValueStorage() {}
@@ -83,6 +83,7 @@ struct ValueStorage {

 struct Storage {
    time_point maintenance_time {};
+    std::unique_ptr<asio::steady_timer> maintenance_job {};
    std::map<Sp<Node>, std::map<size_t, Listener>> listeners;
    std::map<size_t, LocalListener> local_listeners {};
    size_t listener_token {1};
@@ -281,6 +282,7 @@ std::pair<ssize_t, std::vector<Sp<Value>>>
 Storage::expire(const InfoHash& id, time_point now)
 {
    // expire listeners
+    ssize_t del_listen {0};
    for (auto nl_it = listeners.begin(); nl_it != listeners.end();) {
        auto& node_listeners = nl_it->second;
        for (auto l = node_listeners.cbegin(); l != node_listeners.cend();) {
@@ -292,6 +294,7 @@ Storage::expire(const InfoHash& id, time_point now)
        }
        if (node_listeners.empty()) {
            nl_it = listeners.erase(nl_it);
+            del_listen--;
        }
        else
            ++nl_it;
@@ -1,5 +1,5 @@
 /*
- *  Copyright (C) 2014-2023 Savoir-faire Linux Inc.
+ *  Copyright (C) 2014-2022 Savoir-faire Linux Inc.
 *
 *  Author: Adrien Béraud <adrien.beraud@savoirfairelinux.com>
 *
@@ -23,7 +23,6 @@
 #include <thread>
 #include <iostream>
 #include <ciso646> // fix windows compiler bug
-#include <cmath> // std::pow

 namespace dht {

@@ -39,23 +38,18 @@ ThreadPool::computation()
 ThreadPool&
 ThreadPool::io()
 {
-    static ThreadPool pool(std::thread::hardware_concurrency(), IO_THREADS_MAX);
+    static ThreadPool pool(IO_THREADS_MAX);
    return pool;
 }


-ThreadPool::ThreadPool(unsigned minThreads, unsigned maxThreads)
- : minThreads_(std::max(minThreads, 1u))
- , maxThreads_(maxThreads ? std::max(minThreads_, maxThreads) : minThreads_)
+ThreadPool::ThreadPool(size_t maxThreads) : maxThreads_(maxThreads)
 {
    threads_.reserve(maxThreads_);
-    if (minThreads_ != maxThreads_) {
-        threadDelayRatio_ = std::pow(3, 1.0 / (maxThreads_ - minThreads_));
-    }
 }

 ThreadPool::ThreadPool()
- : ThreadPool(std::max(std::thread::hardware_concurrency(), 4u))
+ : ThreadPool(std::max<size_t>(std::thread::hardware_concurrency(), 4))
 {}

 ThreadPool::~ThreadPool()
@@ -72,9 +66,7 @@ ThreadPool::run(std::function<void()>&& cb)
    // launch new thread if necessary
    if (not readyThreads_ && threads_.size() < maxThreads_) {
        try {
-            bool permanent_thread = threads_.size() < minThreads_;
-            auto& thread = *threads_.emplace_back(std::make_unique<std::thread>());
-            thread = std::thread([this, permanent_thread, e=threadExpirationDelay, &thread]() {
+            threads_.emplace_back(std::make_unique<std::thread>([this]() {
                while (true) {
                    std::function<void()> task;

@@ -82,13 +74,11 @@ ThreadPool::run(std::function<void()>&& cb)
                    {
                        std::unique_lock<std::mutex> l(lock_);
                        readyThreads_++;
-                        auto waitCond = [&](){ return not running_ or not tasks_.empty(); };
-                        if (permanent_thread)
-                            cv_.wait(l, waitCond);
-                        else 
-                            cv_.wait_for(l, e, waitCond);
+                        cv_.wait(l, [&](){
+                            return not running_ or not tasks_.empty();
+                        });
                        readyThreads_--;
-                        if (not running_ or tasks_.empty())
+                        if (not running_)
                            break;
                        task = std::move(tasks_.front());
                        tasks_.pop();
@@ -102,9 +92,7 @@ ThreadPool::run(std::function<void()>&& cb)
                        std::cerr << "Exception running task: " << e.what() << std::endl;
                    }
                }
-                if (not permanent_thread)
-                    threadEnded(thread);
-            });
+            }));
        } catch(const std::exception& e) {
            std::cerr << "Exception starting thread: " << e.what() << std::endl;
            if (threads_.empty())
@@ -120,37 +108,9 @@ ThreadPool::run(std::function<void()>&& cb)
 }

 void
-ThreadPool::threadEnded(std::thread& thread)
+ThreadPool::stop()
 {
    std::lock_guard<std::mutex> l(lock_);
-    tasks_.emplace([this,t=std::reference_wrapper<std::thread>(thread)]{
-        std::lock_guard<std::mutex> l(lock_);
-        for (auto it = threads_.begin(); it != threads_.end(); ++it) {
-            if (&*(*it) == &t.get()) {
-                t.get().join();
-                threads_.erase(it);
-                break;
-            }
-        }
-    });
-    // A thread expired, maybe after handling a one-time burst of tasks.
-    // If new threads start later, increase the expiration delay.
-    if (threadExpirationDelay > std::chrono::hours(24 * 7)) {
-        // If we reach 7 days, assume the thread is regularly used at full capacity
-        minThreads_ = std::min(minThreads_+1, maxThreads_);
-    } else {
-        threadExpirationDelay *= threadDelayRatio_;
-    }
-    cv_.notify_one();
-}
-
-void
-ThreadPool::stop(bool wait)
-{
-    std::unique_lock<std::mutex> l(lock_);
-    if (wait) {
-        cv_.wait(l, [&](){ return tasks_.empty(); });
-    }
    running_ = false;
    tasks_ = {};
    cv_.notify_all();
@@ -163,7 +123,6 @@ ThreadPool::join()
    for (auto& t : threads_)
        t->join();
    threads_.clear();
-    tasks_ = {};
 }

 void
Author	SHA1	Message	Date
Adrien Beraud	aee08022fc	dht: use asio for networking, scheduling	2023-05-14 21:21:09 -04:00
Adrien Beraud	0f8bb3301a	vscode: add default settings for cmake	2023-05-14 17:23:21 -04:00