Build android image

Bump ngtcp2 to v0.13.0

.clang-format

@@ -2,93 +2,190 @@
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 AlignAfterOpenBracket: Align
-AlignConsecutiveAssignments: false
-AlignConsecutiveDeclarations: false
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-AlignOperands:   true
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+AlignConsecutiveDeclarations: None
+AlignEscapedNewlines: Right
+AlignOperands:   Align
 AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: true
 AllowAllParametersOfDeclarationOnNextLine: true
-AllowShortBlocksOnASingleLine: false
+AllowShortEnumsOnASingleLine: true
+AllowShortBlocksOnASingleLine: Never
 AllowShortCaseLabelsOnASingleLine: false
 AllowShortFunctionsOnASingleLine: All
-AllowShortIfStatementsOnASingleLine: false
+AllowShortLambdasOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
 AllowShortLoopsOnASingleLine: false
 AlwaysBreakAfterDefinitionReturnType: None
 AlwaysBreakAfterReturnType: None
 AlwaysBreakBeforeMultilineStrings: false
-AlwaysBreakTemplateDeclarations: false
+AlwaysBreakTemplateDeclarations: MultiLine
+AttributeMacros:
+  - __capability
 BinPackArguments: true
 BinPackParameters: true
 BraceWrapping:
+  AfterCaseLabel:  false
   AfterClass:      false
-  AfterControlStatement: false
+  AfterControlStatement: Never
   AfterEnum:       false
   AfterFunction:   false
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   AfterUnion:      false
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+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
 BreakBeforeBinaryOperators: None
+BreakBeforeConceptDeclarations: true
 BreakBeforeBraces: Attach
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+BreakInheritanceList: BeforeColon
 BreakBeforeTernaryOperators: true
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 ColumnLimit:     80
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 ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
 Cpp11BracedListStyle: true
+DeriveLineEnding: true
 DerivePointerAlignment: false
 DisableFormat:   false
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: LogicalBlock
 ExperimentalAutoDetectBinPacking: false
-ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH ]
+PackConstructorInitializers: NextLine
+BasedOnStyle:    ''
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+AllowAllConstructorInitializersOnNextLine: true
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IfMacros:
+  - KJ_IF_MAYBE
+IncludeBlocks:   Preserve
 IncludeCategories:
   - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
     Priority:        2
+    SortPriority:    0
+    CaseSensitive:   false
   - Regex:           '^(<|"(gtest|isl|json)/)'
     Priority:        3
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     Priority:        1
+    SortPriority:    0
+    CaseSensitive:   false
 IncludeIsMainRegex: '$'
+IncludeIsMainSourceRegex: ''
+IndentAccessModifiers: false
 IndentCaseLabels: false
+IndentCaseBlocks: false
+IndentGotoLabels: true
+IndentPPDirectives: AfterHash
+IndentExternBlock: AfterExternBlock
+IndentRequires:  false
 IndentWidth:     2
 IndentWrappedFunctionNames: false
+InsertTrailingCommas: None
 JavaScriptQuotes: Leave
 JavaScriptWrapImports: true
 KeepEmptyLinesAtTheStartOfBlocks: true
+LambdaBodyIndentation: Signature
 MacroBlockBegin: ''
 MacroBlockEnd:   ''
 MaxEmptyLinesToKeep: 1
 NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
 ObjCBlockIndentWidth: 2
+ObjCBreakBeforeNestedBlockParam: true
 ObjCSpaceAfterProperty: false
 ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
 PenaltyBreakBeforeFirstCallParameter: 19
 PenaltyBreakComment: 300
 PenaltyBreakFirstLessLess: 120
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 PenaltyBreakString: 1000
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 PenaltyExcessCharacter: 1000000
 PenaltyReturnTypeOnItsOwnLine: 60
+PenaltyIndentedWhitespace: 0
 PointerAlignment: Right
+PPIndentWidth:   -1
+ReferenceAlignment: Pointer
 ReflowComments:  true
-SortIncludes:    false
+RemoveBracesLLVM: false
+SeparateDefinitionBlocks: Leave
+ShortNamespaceLines: 1
+SortIncludes:    Never
+SortJavaStaticImport: Before
+SortUsingDeclarations: true
 SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
 SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
 SpaceBeforeParens: ControlStatements
+SpaceBeforeParensOptions:
+  AfterControlStatements: true
+  AfterForeachMacros: true
+  AfterFunctionDefinitionName: false
+  AfterFunctionDeclarationName: false
+  AfterIfMacros:   true
+  AfterOverloadedOperator: false
+  BeforeNonEmptyParentheses: false
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
 SpaceInEmptyParentheses: false
 SpacesBeforeTrailingComments: 1
-SpacesInAngles:  false
+SpacesInAngles:  Never
+SpacesInConditionalStatement: false
 SpacesInContainerLiterals: true
 SpacesInCStyleCastParentheses: false
+SpacesInLineCommentPrefix:
+  Minimum:         1
+  Maximum:         -1
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
-Standard:        Cpp11
+SpaceBeforeSquareBrackets: false
+BitFieldColonSpacing: Both
+Standard:        Latest
+StatementAttributeLikeMacros:
+  - Q_EMIT
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
 TabWidth:        8
+UseCRLF:         false
 UseTab:          Never
+WhitespaceSensitiveMacros:
+  - STRINGIZE
+  - PP_STRINGIZE
+  - BOOST_PP_STRINGIZE
+  - NS_SWIFT_NAME
+  - CF_SWIFT_NAME
 ...
 

.github/workflows/android.yml

@@ -0,0 +1,22 @@
+name: android
+
+on:
+  push:
+    paths:
+    - Dockerfile.android
+  pull_request:
+    paths:
+    - Dockerfile.android
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: docker/setup-buildx-action@v2
+    - name: Build container image
+      uses: docker/build-push-action@v3
+      with:
+        file: Dockerfile.android
+        tags: ghcr.io/nghttp2/nghttp2

.github/workflows/build.yml

@@ -0,0 +1,291 @@
+name: build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ubuntu-22.04, macos-11]
+        compiler: [gcc, clang]
+        buildtool: [autotools, cmake]
+        http3: [http3, no-http3]
+        openssl: [openssl1, openssl3, boringssl]
+        exclude:
+        - os: macos-11
+          openssl: openssl3
+        - http3: no-http3
+          openssl: openssl3
+        - os: macos-11
+          compiler: gcc
+        - # disable macos cmake because of include path issue
+          os: macos-11
+          buildtool: cmake
+        - os: macos-11
+          openssl: boringssl
+        - openssl: boringssl
+          buildtool: cmake
+        - openssl: boringssl
+          compiler: gcc
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Linux setup
+      if: runner.os == 'Linux'
+      run: |
+        sudo apt-get install \
+          g++-12 \
+          clang-14 \
+          autoconf \
+          automake \
+          autotools-dev \
+          libtool \
+          pkg-config \
+          zlib1g-dev \
+          libcunit1-dev \
+          libssl-dev \
+          libxml2-dev \
+          libev-dev \
+          libevent-dev \
+          libjansson-dev \
+          libjemalloc-dev \
+          libc-ares-dev \
+          libelf-dev \
+          cmake \
+          cmake-data
+        echo 'CPPFLAGS=-fsanitize=address,undefined -fno-sanitize-recover=undefined -g' >> $GITHUB_ENV
+        echo 'LDFLAGS=-fsanitize=address,undefined -fno-sanitize-recover=undefined' >> $GITHUB_ENV
+    - name: MacOS setup
+      if: runner.os == 'macOS'
+      run: |
+        brew install \
+          libev \
+          libevent \
+          c-ares \
+          cunit \
+          libressl \
+          autoconf \
+          automake \
+          pkg-config \
+          libtool
+        echo 'PKG_CONFIG_PATH=/usr/local/opt/libressl/lib/pkgconfig:/usr/local/opt/libxml2/lib/pkgconfig' >> $GITHUB_ENV
+    - name: Setup clang (Linux)
+      if: runner.os == 'Linux' && matrix.compiler == 'clang'
+      run: |
+        echo 'CC=clang-14' >> $GITHUB_ENV
+        echo 'CXX=clang++-14' >> $GITHUB_ENV
+    - name: Setup clang (MacOS)
+      if: runner.os == 'macOS' && matrix.compiler == 'clang'
+      run: |
+        echo 'CC=clang' >> $GITHUB_ENV
+        echo 'CXX=clang++' >> $GITHUB_ENV
+    - name: Setup gcc (Linux)
+      if: runner.os == 'Linux' && matrix.compiler == 'gcc'
+      run: |
+        echo 'CC=gcc-12' >> $GITHUB_ENV
+        echo 'CXX=g++-12' >> $GITHUB_ENV
+    - name: Setup gcc (MacOS)
+      if: runner.os == 'macOS' && matrix.compiler == 'gcc'
+      run: |
+        echo 'CC=gcc' >> $GITHUB_ENV
+        echo 'CXX=g++' >> $GITHUB_ENV
+    - name: Build libbpf
+      if: matrix.http3 == 'http3' && matrix.compiler == 'clang' && runner.os == 'Linux'
+      run: |
+        git clone -b v1.0.1 https://github.com/libbpf/libbpf
+        cd libbpf
+        PREFIX=$PWD/build make -C src install
+
+        EXTRA_AUTOTOOLS_OPTS="--with-libbpf"
+        EXTRA_CMAKE_OPTS="-DWITH_LIBBPF=1"
+
+        echo 'EXTRA_AUTOTOOLS_OPTS='"$EXTRA_AUTOTOOLS_OPTS" >> $GITHUB_ENV
+        echo 'EXTRA_CMAKE_OPTS='"$EXTRA_CMAKE_OPTS" >> $GITHUB_ENV
+    - name: Build quictls/openssl v1.1.1
+      if: matrix.http3 == 'http3' && matrix.openssl == 'openssl1'
+      run: |
+        git clone --depth 1 -b OpenSSL_1_1_1s+quic https://github.com/quictls/openssl
+        cd openssl
+        ./config --prefix=$PWD/build
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
+        make install_sw
+    - name: Build quictls/openssl v3.0.x
+      if: matrix.http3 == 'http3' && matrix.openssl == 'openssl3'
+      run: |
+        unset CPPFLAGS
+        unset LDFLAGS
+
+        git clone --depth 1 -b openssl-3.0.7+quic https://github.com/quictls/openssl
+        cd openssl
+        ./config enable-ktls --prefix=$PWD/build --libdir=$PWD/build/lib
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
+        make install_sw
+    - name: Build BoringSSL
+      if: matrix.openssl == 'boringssl'
+      run: |
+        git clone https://boringssl.googlesource.com/boringssl
+        cd boringssl
+        git checkout 80a243e07ef77156af66efa7d22ac35aba44c1b3
+        mkdir build
+        cd build
+        cmake -DCMAKE_POSITION_INDEPENDENT_CODE=ON ..
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
+        cd ..
+
+        OPENSSL_CFLAGS="-I$PWD/include/"
+        OPENSSL_LIBS="-L$PWD/build/ssl -lssl -L$PWD/build/crypto -lcrypto -pthread"
+        EXTRA_NGTCP2_OPTS="$EXTRA_NGTCP2_OPTS --without-openssl --with-boringssl"
+        EXTRA_AUTOTOOLS_OPTS="$EXTRA_AUTOTOOLS_OPTS --without-neverbleed --without-jemalloc"
+
+        echo 'OPENSSL_CFLAGS='"$OPENSSL_CFLAGS" >> $GITHUB_ENV
+        echo 'OPENSSL_LIBS='"$OPENSSL_LIBS" >> $GITHUB_ENV
+        echo 'BORINGSSL_CFLAGS='"$OPENSSL_CFLAGS" >> $GITHUB_ENV
+        echo 'BORINGSSL_LIBS='"$OPENSSL_LIBS" >> $GITHUB_ENV
+        echo 'EXTRA_NGTCP2_OPTS='"$EXTRA_NGTCP2_OPTS" >> "$GITHUB_ENV"
+        echo 'EXTRA_AUTOTOOLS_OPTS='"$EXTRA_AUTOTOOLS_OPTS" >> $GITHUB_ENV
+    - name: Build nghttp3
+      if: matrix.http3 == 'http3'
+      run: |
+        git clone --depth 1 -b v0.8.0 https://github.com/ngtcp2/nghttp3
+        cd nghttp3
+        autoreconf -i
+        ./configure --prefix=$PWD/build --enable-lib-only
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check
+        make install
+    - name: Build ngtcp2
+      if: matrix.http3 == 'http3'
+      run: |
+        git clone --depth 1 -b v0.13.0 https://github.com/ngtcp2/ngtcp2
+        cd ngtcp2
+        autoreconf -i
+        ./configure --prefix=$PWD/build --enable-lib-only PKG_CONFIG_PATH="../openssl/build/lib/pkgconfig" $EXTRA_NGTCP2_OPTS
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check
+        make install
+    - name: Setup extra environment variables for HTTP/3
+      if: matrix.http3 == 'http3'
+      run: |
+        PKG_CONFIG_PATH="$PWD/openssl/build/lib/pkgconfig:$PWD/nghttp3/build/lib/pkgconfig:$PWD/ngtcp2/build/lib/pkgconfig:$PWD/libbpf/build/lib64/pkgconfig:$PKG_CONFIG_PATH"
+        LDFLAGS="$LDFLAGS -Wl,-rpath,$PWD/openssl/build/lib -Wl,-rpath,$PWD/libbpf/build/lib64"
+        EXTRA_AUTOTOOLS_OPTS="--enable-http3 $EXTRA_AUTOTOOLS_OPTS"
+        EXTRA_CMAKE_OPTS="-DENABLE_HTTP3=1 $EXTRA_CMAKE_OPTS"
+
+        echo 'PKG_CONFIG_PATH='"$PKG_CONFIG_PATH" >> $GITHUB_ENV
+        echo 'LDFLAGS='"$LDFLAGS" >> $GITHUB_ENV
+        echo 'EXTRA_AUTOTOOLS_OPTS='"$EXTRA_AUTOTOOLS_OPTS" >> $GITHUB_ENV
+        echo 'EXTRA_CMAKE_OPTS='"$EXTRA_CMAKE_OPTS" >> $GITHUB_ENV
+    - name: Setup git submodules
+      run: |
+        git submodule update --init
+    - name: Configure autotools
+      run: |
+        autoreconf -i
+        ./configure
+    - name: Configure cmake (Linux)
+      if: matrix.buildtool == 'cmake' && runner.os == 'Linux'
+      run: |
+        make dist
+        VERSION=$(grep PACKAGE_VERSION config.h | cut -d' ' -f3 | tr -d '"')
+        tar xf nghttp2-$VERSION.tar.gz
+        cd nghttp2-$VERSION
+        echo 'NGHTTP2_CMAKE_DIR='"$PWD" >> $GITHUB_ENV
+
+        cmake -DENABLE_WERROR=1 -DWITH_MRUBY=1 -DWITH_NEVERBLEED=1 -DENABLE_APP=1 $EXTRA_CMAKE_OPTS -DCPPFLAGS="$CPPFLAGS" -DLDFLAGS="$LDFLAGS" .
+    - name: Configure cmake (MacOS)
+      if: matrix.buildtool == 'cmake' && runner.os == 'macOS'
+      run: |
+        make dist
+        VERSION=$(grep PACKAGE_VERSION config.h | cut -d' ' -f3 | tr -d '"')
+        tar xf nghttp2-$VERSION.tar.gz
+        cd nghttp2-$VERSION
+        echo 'NGHTTP2_CMAKE_DIR='"$PWD" >> $GITHUB_ENV
+
+        # This fixes infamous 'stdio.h not found' error.
+        echo 'SDKROOT='"$(xcrun --sdk macosx --show-sdk-path)" >> $GITHUB_ENV
+
+        cmake -DENABLE_WERROR=1 -DWITH_MRUBY=1 -DENABLE_APP=1 $EXTRA_CMAKE_OPTS -DCPPFLAGS="$CPPFLAGS" -DLDFLAGS="$LDFLAGS" .
+    - name: Build nghttp2 with autotools (Linux)
+      if: matrix.buildtool == 'autotools' && runner.os == 'Linux'
+      run: |
+        make -j"$(nproc)" distcheck \
+          DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-neverbleed --with-libev --enable-werror $EXTRA_AUTOTOOLS_OPTS CPPFLAGS=\"$CPPFLAGS\" LDFLAGS=\"$LDFLAGS\""
+    - name: Build nghttp2 with autotools (MacOS)
+      if: matrix.buildtool == 'autotools' && runner.os == 'macOS'
+      run: |
+        make -j"$(sysctl -n hw.ncpu)" distcheck \
+          DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-libev --enable-werror $EXTRA_AUTOTOOLS_OPTS CPPFLAGS=\"$CPPFLAGS\" LDFLAGS=\"$LDFLAGS\""
+    - name: Build nghttp2 with cmake
+      if: matrix.buildtool == 'cmake'
+      run: |
+        cd $NGHTTP2_CMAKE_DIR
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
+        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check
+    - name: Integration test
+      # Integration tests for nghttpx; autotools erases build
+      # artifacts.
+      if: matrix.buildtool == 'cmake'
+      run: |
+        cd $NGHTTP2_CMAKE_DIR/integration-tests
+        make itprep it
+
+  build-cross:
+    strategy:
+      matrix:
+        host: [x86_64-w64-mingw32, i686-w64-mingw32]
+
+    runs-on: ubuntu-22.04
+
+    env:
+      HOST: ${{ matrix.host }}
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Linux setup
+      run: |
+        sudo dpkg --add-architecture i386
+        sudo apt-get update
+        sudo apt-get install \
+          gcc-mingw-w64 \
+          autoconf \
+          automake \
+          autotools-dev \
+          libtool \
+          pkg-config \
+          wine
+    - name: Build CUnit
+      run: |
+        curl -LO https://jaist.dl.sourceforge.net/project/cunit/CUnit/2.1-3/CUnit-2.1-3.tar.bz2
+        tar xf CUnit-2.1-3.tar.bz2
+        cd CUnit-2.1-3
+        ./bootstrap
+        ./configure --disable-shared --host="$HOST" --prefix="$PWD/build"
+        make -j$(nproc) install
+    - name: Configure autotools
+      run: |
+        autoreconf -i && \
+        ./configure --enable-werror --enable-lib-only --with-cunit \
+          --host="$HOST" PKG_CONFIG_PATH="$PWD/CUnit-2.1-3/build/lib/pkgconfig"
+    - name: Build nghttp2
+      run: |
+        make -j$(nproc)
+        make -j$(nproc) check TESTS=""
+    - name: Run tests
+      if: matrix.host == 'x86_64-w64-mingw32'
+      run: |
+        cd tests
+        wine main.exe
+
+  build-windows:
+    runs-on: windows-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Configure cmake
+      run: |
+        mkdir build
+        cd build
+        cmake ..
+    - name: Build nghttp2
+      run: |
+        cmake --build build

.github/workflows/fuzz.yml

@@ -0,0 +1,23 @@
+name: CIFuzz
+on: [pull_request]
+jobs:
+  Fuzzing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Build Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'nghttp2'
+        dry-run: false
+    - name: Run Fuzzers
+      uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
+      with:
+        oss-fuzz-project-name: 'nghttp2'
+        fuzz-seconds: 600
+        dry-run: false
+    - name: Upload Crash
+      uses: actions/upload-artifact@v1
+      if: failure()
+      with:
+        name: artifacts
+        path: ./out/artifacts

.gitignore

@@ -54,4 +54,3 @@ _VC_ROOT/
 .depend.MSVC
 *.pyd
 *.egg-info/
-python/nghttp2.c

.gitmodules

@@ -3,4 +3,5 @@
 	url = https://github.com/mruby/mruby
 [submodule "third-party/neverbleed"]
 	path = third-party/neverbleed
-	url = https://github.com/h2o/neverbleed.git
+	url = https://github.com/tatsuhiro-t/neverbleed.git
+	branch = nghttp2

.travis.yml

@@ -1,63 +0,0 @@
-env:
-  matrix:
-    - CI_BUILD=cmake
-    - CI_BUILD=autotools
-language: cpp
-compiler:
-  - clang
-  - gcc
-sudo: false
-addons:
-  apt:
-    sources:
-    - ubuntu-toolchain-r-test
-    - george-edison55-precise-backports
-    packages:
-    - g++-4.9
-    - libstdc++-4.9-dev
-    - autoconf
-    - automake
-    - autotools-dev
-    - libtool
-    - pkg-config
-    - zlib1g-dev
-    - libcunit1-dev
-    - libssl-dev
-    - libxml2-dev
-    - libev-dev
-    - libevent-dev
-    - libjansson-dev
-    - libjemalloc-dev
-    - cmake
-    - cmake-data
-before_install:
-  - $CC --version
-  - if [ "$CXX" = "g++" ]; then export CXX="g++-4.9" CC="gcc-4.9"; fi
-  - $CC --version
-  - go version
-  - cmake --version
-before_script:
-  # First build spdylay, since integration tests require it.
-  # spdylay is going to be built under third-party/spdylay
-  - cd third-party
-  - git clone https://github.com/tatsuhiro-t/spdylay.git
-  - cd spdylay
-  - autoreconf -i
-  # Don't use ASAN for spdylay since failmalloc does not work with it.
-  - ./configure --disable-src --disable-examples
-  - make check
-  - export SPDYLAY_HOME=$PWD
-  - cd ../..
-  # Now build nghttp2
-  - if [ "$CI_BUILD" = "autotools" ]; then autoreconf -i; fi
-  - git submodule update --init
-  - if [ "$CI_BUILD" = "autotools" ]; then ./configure --enable-werror --with-mruby --with-neverbleed LIBSPDYLAY_CFLAGS="-I$SPDYLAY_HOME/lib/includes" LIBSPDYLAY_LIBS="-L$SPDYLAY_HOME/lib/.libs -lspdylay" CPPFLAGS=-fsanitize=address LDFLAGS=-fsanitize=address; fi
-  - if [ "$CI_BUILD" = "cmake" ]; then cmake -DENABLE_WERROR=1 -DWITH_MRUBY=1 -DWITH_NEVERBLEED=1 -DSPDYLAY_INCLUDE_DIR="$SPDYLAY_HOME/lib/includes" -DSPDYLAY_LIBRARY="$SPDYLAY_HOME/lib/.libs/libspdylay.so"; fi
-script:
-  - make check
-  # As of April, 23, 2016, golang http2 build fails, probably because
-  # the default go version is too old.
-  # - cd integration-tests
-  # - export GOPATH="$PWD/integration-tests/golang"
-  # - make itprep
-  # - make it

AUTHORS

@@ -14,30 +14,61 @@ github issues [2].
 --------
 
 187j3x1
+Adam Gołębiowski
 Alek Storm
 Alex Nalivko
+Alexandros Konstantinakis-Karmis
 Alexis La Goutte
+Amir Livneh
+Amir Pakdel
 Anders Bakken
 Andreas Pohl
+Andrew Penkrat
 Andy Davies
+Angus Gratton
+Anna Henningsen
 Ant Bryan
+Asra Ali
+Benedikt Christoph Wolters
+Benjamin Peterson
 Bernard Spil
+Brendan Heinonen
 Brian Card
 Brian Suh
+Daniel Bevenius
+Daniel Evers
 Daniel Stenberg
 Dave Reisner
 David Beitey
+David Korczynski
 David Weekly
+Dimitris Apostolou
+Dmitri Tikhonov
+Dmitriy Vetutnev
+Don
+Dylan Plecki
 Etienne Cimon
 Fabian Möller
 Fabian Wiesel
 Gabi Davar
+Gaël PORTAY
+Geoff Hill
+George Liu
+Gitai
+Google Inc.
+Hajime Fujita
+Jacky Tian
+Jacky_Yin
 Jacob Champion
+James M Snell
+Jan Kundrát
 Jan-E
 Janusz Dziemidowicz
 Jay Satiro
+Jeff 'Raid' Baitis
 Jianqing Wang
 Jim Morrison
+Josh Braegger
 José F. Calcerrada
 Kamil Dudka
 Kazuho Oku
@@ -45,42 +76,78 @@ Kenny (kang-yen) Peng
 Kenny Peng
 Kit Chan
 Kyle Schomp
+LazyHamster
+Leo Neat
+Lorenz Nickel
 Lucas Pardue
 MATSUMOTO Ryosuke
+Marc Bachmann
+Marcelo Trylesinski
+Matt Rudary
+Matt Way
+Michael Kaufmann
 Mike Conlen
 Mike Frysinger
+Mike Lothian
 Nicholas Hurley
 Nora Shoemaker
+Paweł Wegner
+Pedro Santos
 Peeyush Aggarwal
 Peter Wu
 Piotr Sikora
+PufferOverflow
 Raul Gutierrez Segales
 Remo E
+Renaud
 Reza Tavakoli
+Richard Wolfert
+Rick Lei
 Ross Smith II
+Rudi Heitbaum
+Ryo Ota
 Scott Mitchell
+Sebastiaan Deckers
+Shelley Vohr
+Simon Frankenberger
+Simone Basso
+Soham Sinha
 Stefan Eissing
 Stephen Ludin
 Sunpoet Po-Chuan Hsieh
 Svante Signell
 Syohei YOSHIDA
+Tapanito
 Tatsuhiko Kubo
 Tatsuhiro Tsujikawa
+Tobias Geerinckx-Rice
 Tom Harwood
+Tomas Krizek
 Tomasz Buchert
+Tomasz Torcz
 Vernon Tang
 Viacheslav Biriukov
+Viktor Szakats
 Viktor Szépe
 Wenfeng Liu
+William A Rowe Jr
 Xiaoguang Sun
 Zhuoyun Wei
 acesso
 ayanamist
 bxshi
+clemahieu
+dalf
+dawg
 es
 fangdingjun
+jwchoi
 kumagi
+lhuang04
+lstefani
+makovich
 mod-h2-dev
 moparisthebest
+robaho
 snnn
 yuuki-kodama

CMakeLists.txt

@@ -24,15 +24,15 @@
 
 cmake_minimum_required(VERSION 3.0)
 # XXX using 1.8.90 instead of 1.9.0-DEV
-project(nghttp2 VERSION 1.16.0)
+project(nghttp2 VERSION 1.51.90)
 
 # See versioning rule:
-#  http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-set(LT_CURRENT  26)
-set(LT_REVISION 0)
-set(LT_AGE      12)
+#  https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+set(LT_CURRENT  38)
+set(LT_REVISION 1)
+set(LT_AGE      24)
 
-set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
+set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
 include(Version)
 
 math(EXPR LT_SOVERSION "${LT_CURRENT} - ${LT_AGE}")
@@ -52,43 +52,46 @@ endif()
 
 include(GNUInstallDirs)
 
-# For Python bindings and documentation
-# (Must be called before PythonLibs for matching versions.)
-find_package(PythonInterp)
+# For documentation
+find_package(Python3 COMPONENTS Interpreter)
 
 # Auto-detection of features that can be toggled
 find_package(OpenSSL 1.0.1)
 find_package(Libev 4.11)
+find_package(Libcares 1.7.5)
 find_package(ZLIB 1.2.3)
+find_package(Libngtcp2 0.0.0)
+find_package(Libngtcp2_crypto_openssl 0.0.0)
+if(LIBNGTCP2_CRYPTO_OPENSSL_FOUND)
+  set(HAVE_LIBNGTCP2_CRYPTO_OPENSSL 1)
+endif()
+find_package(Libnghttp3 0.0.0)
+if(WITH_LIBBPF)
+  find_package(Libbpf 0.4.0)
+  if(NOT LIBBPF_FOUND)
+    message(FATAL_ERROR "libbpf was requested (WITH_LIBBPF=1) but not found.")
+  endif()
+endif()
 if(OPENSSL_FOUND AND LIBEV_FOUND AND ZLIB_FOUND)
   set(ENABLE_APP_DEFAULT ON)
 else()
   set(ENABLE_APP_DEFAULT OFF)
 endif()
+find_package(Systemd 209)
 find_package(Jansson  2.5)
 set(ENABLE_HPACK_TOOLS_DEFAULT ${JANSSON_FOUND})
 # 2.0.8 is required because we use evconnlistener_set_error_cb()
-find_package(Libevent 2.0.8 COMPONENTS libevent openssl)
+find_package(Libevent 2.0.8 COMPONENTS core extra openssl)
 set(ENABLE_EXAMPLES_DEFAULT ${LIBEVENT_OPENSSL_FOUND})
-find_package(Cython)
-find_package(PythonLibs)
-if(CYTHON_FOUND AND PYTHONLIBS_FOUND)
-  set(ENABLE_PYTHON_BINDINGS_DEFAULT ON)
-else()
-  set(ENABLE_PYTHON_BINDINGS_DEFAULT OFF)
-endif()
 
-find_package(LibXml2 2.7.7)
+find_package(LibXml2 2.6.26)
 set(WITH_LIBXML2_DEFAULT    ${LIBXML2_FOUND})
 find_package(Jemalloc)
 set(WITH_JEMALLOC_DEFAULT   ${JEMALLOC_FOUND})
-find_package(Spdylay 1.3.2)
-set(WITH_SPDYLAY_DEFAULT    ${SPDYLAY_FOUND})
 
 include(CMakeOptions.txt)
 
-if(ENABLE_LIB_ONLY AND (ENABLE_APP OR ENABLE_HPACK_TOOLS OR ENABLE_EXAMPLES OR
-  ENABLE_PYTHON_BINDINGS))
+if(ENABLE_LIB_ONLY AND (ENABLE_APP OR ENABLE_HPACK_TOOLS OR ENABLE_EXAMPLES))
   # Remember when disabled options are disabled for later diagnostics.
   set(ENABLE_LIB_ONLY_DISABLED_OTHERS 1)
 else()
@@ -98,35 +101,24 @@ if(ENABLE_LIB_ONLY)
   set(ENABLE_APP            OFF)
   set(ENABLE_HPACK_TOOLS    OFF)
   set(ENABLE_EXAMPLES       OFF)
-  set(ENABLE_PYTHON_BINDINGS OFF)
 endif()
 
 # Do not disable assertions based on CMAKE_BUILD_TYPE.
 foreach(_build_type "Release" "MinSizeRel" "RelWithDebInfo")
   foreach(_lang C CXX)
     string(TOUPPER "CMAKE_${_lang}_FLAGS_${_build_type}" _var)
-    string(REGEX REPLACE "(^| )[/-]D *NDEBUG($| )" "" ${_var} "${${_var}}")
+    string(REGEX REPLACE "(^| )[/-]D *NDEBUG($| )" " " ${_var} "${${_var}}")
   endforeach()
 endforeach()
 
-#
-# If we're running GCC or clang define _U_ to be "__attribute__((unused))"
-# so we can use _U_ to flag unused function parameters and not get warnings
-# about them. Otherwise, define _U_ to be an empty string so that _U_ used
-# to flag an unused function parameters will compile with other compilers.
-#
-# XXX - similar hints for other compilers?
-#
 if(CMAKE_C_COMPILER_ID MATCHES "GNU" OR CMAKE_C_COMPILER_ID MATCHES "Clang")
-  set(HINT_UNUSED_PARAM   "__attribute__((unused))")
   set(HINT_NORETURN       "__attribute__((noreturn))")
 else()
-  set(HINT_UNUSED_PARAM)
   set(HINT_NORETURN)
 endif()
 
 include(ExtractValidFlags)
-foreach(_cxx1x_flag -std=c++11 -std=c++0x)
+foreach(_cxx1x_flag -std=c++14)
   extract_valid_cxx_flags(_cxx1x_flag_supported ${_cxx1x_flag})
   if(_cxx1x_flag_supported)
     set(CXX1XCXXFLAGS ${_cxx1x_flag})
@@ -154,20 +146,6 @@ cmake_pop_check_state()
 # Additional libraries required for programs under src directory.
 set(APP_LIBRARIES)
 
-if(ENABLE_PYTHON_BINDINGS)
-  if(NOT (CYTHON_FOUND AND PYTHONLIBS_FOUND))
-    message(FATAL_ERROR "python bindings were requested "
-      "(ENABLE_PYTHON_BINDINGS=1) but dependencies are not met.")
-  endif()
-  if(NOT PYTHON_VERSION_STRING STREQUAL PYTHONLIBS_VERSION_STRING)
-    message(FATAL_ERROR
-      "Python executable and library must have the same version!"
-      " Found Python ${PYTHON_VERSION_STRING} and"
-      " PythonLibs ${PYTHONLIBS_VERSION_STRING}"
-    )
-  endif()
-endif()
-
 set(CMAKE_THREAD_PREFER_PTHREAD 1)
 find_package(Threads)
 if(CMAKE_USE_PTHREADS_INIT)
@@ -177,7 +155,7 @@ endif()
 # case "$host" in
 #   *android*)
 #     android_build=yes
-#     # android does not need -pthread, but needs followng 3 libs for C++
+#     # android does not need -pthread, but needs following 3 libs for C++
 #     APPLDFLAGS="$APPLDFLAGS -lstdc++ -latomic -lsupc++"
 
 # dl: openssl requires libdl when it is statically linked.
@@ -192,9 +170,21 @@ if(HAVE_CUNIT)
 endif()
 
 # openssl (for src)
+include(CheckSymbolExists)
 set(HAVE_OPENSSL    ${OPENSSL_FOUND})
 if(OPENSSL_FOUND)
   set(OPENSSL_INCLUDE_DIRS  ${OPENSSL_INCLUDE_DIR})
+  cmake_push_check_state()
+  set(CMAKE_REQUIRED_INCLUDES   "${OPENSSL_INCLUDE_DIR}")
+  set(CMAKE_REQUIRED_LIBRARIES  "${OPENSSL_LIBRARIES}")
+  if(WIN32)
+    set(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}" "ws2_32" "bcrypt")
+  endif()
+  check_symbol_exists(SSL_is_quic "openssl/ssl.h" HAVE_SSL_IS_QUIC)
+  if(NOT HAVE_SSL_IS_QUIC)
+    message(WARNING "OpenSSL in ${OPENSSL_LIBRARIES} does not have SSL_is_quic.  HTTP/3 support cannot be enabled")
+  endif()
+  cmake_pop_check_state()
 else()
   set(OPENSSL_INCLUDE_DIRS  "")
   set(OPENSSL_LIBRARIES     "")
@@ -202,11 +192,20 @@ endif()
 # libev (for src)
 set(HAVE_LIBEV      ${LIBEV_FOUND})
 set(HAVE_ZLIB       ${ZLIB_FOUND})
+set(HAVE_SYSTEMD    ${SYSTEMD_FOUND})
 set(HAVE_LIBEVENT_OPENSSL ${LIBEVENT_FOUND})
 if(LIBEVENT_FOUND)
   # Must both link the core and openssl libraries.
   set(LIBEVENT_OPENSSL_LIBRARIES ${LIBEVENT_LIBRARIES})
 endif()
+# libc-ares (for src)
+set(HAVE_LIBCARES   ${LIBCARES_FOUND})
+if(LIBCARES_FOUND)
+  set(LIBCARES_INCLUDE_DIRS ${LIBCARES_INCLUDE_DIR})
+else()
+  set(LIBCARES_INCLUDE_DIRS "")
+  set(LIBCARES_LIBRARIES    "")
+endif()
 # jansson (for src/nghttp, src/deflatehd and src/inflatehd)
 set(HAVE_JANSSON    ${JANSSON_FOUND})
 # libxml2 (for src/nghttp)
@@ -219,11 +218,19 @@ else()
 endif()
 # jemalloc
 set(HAVE_JEMALLOC   ${JEMALLOC_FOUND})
-# spdylay (for src/nghttpx and src/h2load)
-set(HAVE_SPDYLAY    ${SPDYLAY_FOUND})
 
-if(ENABLE_ASIO_LIB)
-  find_package(Boost 1.54.0 REQUIRED system thread)
+# libbpf (for bpf)
+set(HAVE_LIBBPF ${LIBBPF_FOUND})
+if(LIBBPF_FOUND)
+  set(BPFCFLAGS -Wall -O2 -g)
+  if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    # For Debian/Ubuntu
+    set(EXTRABPFCFLAGS -I/usr/include/${CMAKE_SYSTEM_PROCESSOR}-linux-gnu)
+  endif()
+
+  check_c_source_compiles("
+#include <linux/bpf.h>
+int main() { enum bpf_stats_type foo; (void)foo; }" HAVE_BPF_STATS_TYPE)
 endif()
 
 # The nghttp, nghttpd and nghttpx under src depend on zlib, OpenSSL and libev
@@ -231,18 +238,24 @@ if(ENABLE_APP AND NOT (ZLIB_FOUND AND OPENSSL_FOUND AND LIBEV_FOUND))
   message(FATAL_ERROR "Applications were requested (ENABLE_APP=1) but dependencies are not met.")
 endif()
 
+# HTTP/3 requires quictls/openssl, libngtcp2, libngtcp2_crypto_openssl
+# and libnghttp3.
+if(ENABLE_HTTP3 AND NOT (HAVE_SSL_IS_QUIC AND LIBNGTCP2_FOUND AND LIBNGTCP2_CRYPTO_OPENSSL_FOUND AND LIBNGHTTP3_FOUND))
+  message(FATAL_ERROR "HTTP/3 was requested (ENABLE_HTTP3=1) but dependencies are not met.")
+endif()
+
 # HPACK tools requires jansson
 if(ENABLE_HPACK_TOOLS AND NOT HAVE_JANSSON)
   message(FATAL_ERROR "HPACK tools were requested (ENABLE_HPACK_TOOLS=1) but dependencies are not met.")
 endif()
 
-# C++ library libnghttp2_asio
+# examples
 if(ENABLE_EXAMPLES AND NOT (OPENSSL_FOUND AND LIBEVENT_OPENSSL_FOUND))
   message(FATAL_ERROR "examples were requested (ENABLE_EXAMPLES=1) but dependencies are not met.")
 endif()
 
 # third-party http-parser only be built when needed
-if(ENABLE_EXAMPLES OR ENABLE_APP OR ENABLE_HPACK_TOOLS OR ENABLE_ASIO_LIB)
+if(ENABLE_EXAMPLES OR ENABLE_APP OR ENABLE_HPACK_TOOLS)
   set(ENABLE_THIRD_PARTY 1)
   # mruby (for src/nghttpx)
   set(HAVE_MRUBY      ${WITH_MRUBY})
@@ -303,8 +316,8 @@ check_type_size("time_t"  SIZEOF_TIME_T)
 include(CheckFunctionExists)
 check_function_exists(_Exit     HAVE__EXIT)
 check_function_exists(accept4   HAVE_ACCEPT4)
+check_function_exists(mkostemp  HAVE_MKOSTEMP)
 
-# timerfd_create was added in linux kernel 2.6.25
 include(CheckSymbolExists)
 # XXX does this correctly detect initgroups (un)availability on cygwin?
 check_symbol_exists(initgroups grp.h HAVE_DECL_INITGROUPS)
@@ -316,13 +329,6 @@ if(NOT HAVE_DECL_INITGROUPS AND HAVE_UNISTD_H)
   endif()
 endif()
 
-check_function_exists(timerfd_create HAVE_TIMERFD_CREATE)
-# Checks for epoll availability, primarily for examples/tiny-nghttpd
-check_symbol_exists(epoll_create sys/epoll.h HAVE_EPOLL)
-if(HAVE_EPOLL AND HAVE_TIMERFD_CREATE)
-  set(ENABLE_TINY_NGHTTPD 1)
-endif()
-
 set(WARNCFLAGS)
 set(WARNCXXFLAGS)
 if(CMAKE_C_COMPILER_ID MATCHES "MSVC")
@@ -393,6 +399,15 @@ else()
   )
 endif()
 
+if(ENABLE_STATIC_CRT)
+  foreach(lang C CXX)
+    foreach(suffix "" _DEBUG _MINSIZEREL _RELEASE _RELWITHDEBINFO)
+      set(var "CMAKE_${lang}_FLAGS${suffix}")
+      string(REPLACE "/MD" "/MT" ${var} "${${var}}")
+    endforeach()
+  endforeach()
+endif()
+
 if(ENABLE_DEBUG)
   set(DEBUGBUILD 1)
 endif()
@@ -424,8 +439,6 @@ set(sbindir         "${CMAKE_INSTALL_FULL_SBINDIR}")
 foreach(name
    lib/libnghttp2.pc
    lib/includes/nghttp2/nghttp2ver.h
-   src/libnghttp2_asio.pc
-   python/setup.py
    integration-tests/config.go
    integration-tests/setenv
    doc/conf.py
@@ -436,24 +449,24 @@ foreach(name
    doc/tutorial-hpack.rst
    doc/nghttpx-howto.rst
    doc/h2load-howto.rst
-   doc/libnghttp2_asio.rst
-   doc/python-apiref.rst
    doc/building-android-binary.rst
    doc/nghttp2.h.rst
    doc/nghttp2ver.h.rst
-   doc/asio_http2.h.rst
-   doc/asio_http2_server.h.rst
-   doc/asio_http2_client.h.rst
    doc/contribute.rst
 )
   configure_file("${name}.in" "${name}" @ONLY)
 endforeach()
 
+if(APPLE)
+  add_definitions(-D__APPLE_USE_RFC_3542)
+endif()
+
 include_directories(
   "${CMAKE_CURRENT_BINARY_DIR}" # for config.h
 )
 # For use in src/CMakeLists.txt
 set(PKGDATADIR "${CMAKE_INSTALL_FULL_DATADIR}/${CMAKE_PROJECT_NAME}")
+set(PKGLIBDIR "${CMAKE_INSTALL_FULL_LIBDIR}/${CMAKE_PROJECT_NAME}")
 
 install(FILES README.rst DESTINATION "${CMAKE_INSTALL_DOCDIR}")
 
@@ -461,15 +474,16 @@ add_subdirectory(lib)
 #add_subdirectory(lib/includes)
 add_subdirectory(third-party)
 add_subdirectory(src)
-#add_subdirectory(src/includes)
 add_subdirectory(examples)
-add_subdirectory(python)
 add_subdirectory(tests)
 #add_subdirectory(tests/testdata)
 add_subdirectory(integration-tests)
-add_subdirectory(doc)
+if(ENABLE_DOC)
+  add_subdirectory(doc)
+endif()
 add_subdirectory(contrib)
 add_subdirectory(script)
+add_subdirectory(bpf)
 
 
 string(TOUPPER "${CMAKE_BUILD_TYPE}" _build_type)
@@ -488,10 +502,8 @@ message(STATUS "summary of build options:
       WARNCFLAGS:     ${WARNCFLAGS}
       CXX1XCXXFLAGS:  ${CXX1XCXXFLAGS}
     Python:
-      Python:         ${PYTHON_EXECUTABLE}
-      PYTHON_VERSION: ${PYTHON_VERSION_STRING}
-      Library version:${PYTHONLIBS_VERSION_STRING}
-      Cython:         ${CYTHON_EXECUTABLE}
+      Python:          ${Python3_EXECUTABLE}
+      Python3_VERSION: ${Python3_VERSION}
     Test:
       CUnit:          ${HAVE_CUNIT} (LIBS='${CUNIT_LIBRARIES}')
       Failmalloc:     ${ENABLE_FAILMALLOC}
@@ -499,13 +511,16 @@ message(STATUS "summary of build options:
       OpenSSL:        ${HAVE_OPENSSL} (LIBS='${OPENSSL_LIBRARIES}')
       Libxml2:        ${HAVE_LIBXML2} (LIBS='${LIBXML2_LIBRARIES}')
       Libev:          ${HAVE_LIBEV} (LIBS='${LIBEV_LIBRARIES}')
+      Libc-ares:      ${HAVE_LIBCARES} (LIBS='${LIBCARES_LIBRARIES}')
+      Libngtcp2:      ${HAVE_LIBNGTCP2} (LIBS='${LIBNGTCP2_LIBRARIES}')
+      Libngtcp2_crypto_openssl: ${HAVE_LIBNGTCP2_CRYPTO_OPENSSL} (LIBS='${LIBNGTCP2_CRYPTO_OPENSSL_LIBRARIES}')
+      Libnghttp3:     ${HAVE_LIBNGHTTP3} (LIBS='${LIBNGHTTP3_LIBRARIES}')
+      Libbpf:         ${HAVE_LIBBPF} (LIBS='${LIBBPF_LIBRARIES}')
       Libevent(SSL):  ${HAVE_LIBEVENT_OPENSSL} (LIBS='${LIBEVENT_OPENSSL_LIBRARIES}')
-      Spdylay:        ${HAVE_SPDYLAY} (LIBS='${SPDYLAY_LIBRARIES}')
       Jansson:        ${HAVE_JANSSON} (LIBS='${JANSSON_LIBRARIES}')
       Jemalloc:       ${HAVE_JEMALLOC} (LIBS='${JEMALLOC_LIBRARIES}')
       Zlib:           ${HAVE_ZLIB} (LIBS='${ZLIB_LIBRARIES}')
-      Boost::System:  ${Boost_SYSTEM_LIBRARY}
-      Boost::Thread:  ${Boost_THREAD_LIBRARY}
+      Systemd:        ${HAVE_SYSTEMD} (LIBS='${SYSTEMD_LIBRARIES}')
     Third-party:
       http-parser:    ${ENABLE_THIRD_PARTY}
       MRuby:          ${HAVE_MRUBY}
@@ -513,10 +528,9 @@ message(STATUS "summary of build options:
     Features:
       Applications:   ${ENABLE_APP}
       HPACK tools:    ${ENABLE_HPACK_TOOLS}
-      Libnghttp2_asio:${ENABLE_ASIO_LIB}
       Examples:       ${ENABLE_EXAMPLES}
-      Python bindings:${ENABLE_PYTHON_BINDINGS}
       Threading:      ${ENABLE_THREADS}
+      HTTP/3(EXPERIMENTAL): ${ENABLE_HTTP3}
 ")
 if(ENABLE_LIB_ONLY_DISABLED_OTHERS)
   message("Only the library will be built. To build other components "

CMakeOptions.txt

@@ -7,21 +7,22 @@ option(ENABLE_APP       "Build applications (nghttp, nghttpd, nghttpx and h2load
   ${ENABLE_APP_DEFAULT})
 option(ENABLE_HPACK_TOOLS "Build HPACK tools"
   ${ENABLE_HPACK_TOOLS_DEFAULT})
-option(ENABLE_ASIO_LIB  "Build C++ libnghttp2_asio library")
 option(ENABLE_EXAMPLES  "Build examples"
   ${ENABLE_EXAMPLES_DEFAULT})
-option(ENABLE_PYTHON_BINDINGS "Build Python bindings"
-  ${ENABLE_PYTHON_BINDINGS_DEFAULT})
 option(ENABLE_FAILMALLOC "Build failmalloc test program" ON)
-option(ENABLE_LIB_ONLY  "Build libnghttp2 only.  This is a short hand for -DENABLE_APP=0 -DENABLE_EXAMPLES=0 -DENABLE_HPACK_TOOLS=0 -DENABLE_PYTHON_BINDINGS=0")
+option(ENABLE_LIB_ONLY  "Build libnghttp2 only.  This is a short hand for -DENABLE_APP=0 -DENABLE_EXAMPLES=0 -DENABLE_HPACK_TOOLS=0")
+option(ENABLE_STATIC_LIB "Build libnghttp2 in static mode also")
+option(ENABLE_SHARED_LIB "Build libnghttp2 as a shared library" ON)
+option(ENABLE_STATIC_CRT "Build libnghttp2 against the MS LIBCMT[d]")
+option(ENABLE_HTTP3      "Enable HTTP/3 support" OFF)
+option(ENABLE_DOC "Build documentation" ON)
 
 option(WITH_LIBXML2     "Use libxml2"
   ${WITH_LIBXML2_DEFAULT})
 option(WITH_JEMALLOC    "Use jemalloc"
   ${WITH_JEMALLOC_DEFAULT})
-option(WITH_SPDYLAY     "Use spdylay"
-  ${WITH_SPDYLAY_DEFAULT})
 option(WITH_MRUBY       "Use mruby")
 option(WITH_NEVERBLEED  "Use neverbleed")
+option(WITH_LIBBPF      "Use libbpf")
 
 # vim: ft=cmake:

Dockerfile.android

@@ -10,74 +10,62 @@
 #
 # $ sudo docker run -v /path/to/dest:/out nghttp2-android cp /root/build/nghttp2/src/nghttpx /out
 
-FROM ubuntu:vivid
 
+# Only use standalone-toolchain for reduce size
+FROM ubuntu:22.04
 MAINTAINER Tatsuhiro Tsujikawa
 
-ENV ANDROID_HOME /root/android
-ENV PREFIX $ANDROID_HOME/usr/local
-ENV TOOLCHAIN $ANDROID_HOME/toolchain
-ENV PATH $TOOLCHAIN/bin:$PATH
+ENV NDK_VERSION r25b
+ENV NDK /root/android-ndk-$NDK_VERSION
+ENV TOOLCHAIN $NDK/toolchains/llvm/prebuilt/linux-x86_64
+ENV TARGET aarch64-linux-android
+ENV API 33
+ENV AR $TOOLCHAIN/bin/llvm-ar
+ENV CC $TOOLCHAIN/bin/$TARGET$API-clang
+ENV CXX $TOOLCHAIN/bin/$TARGET$API-clang++
+ENV LD $TOOLCHAIN/bin/ld
+ENV RANDLIB $TOOLCHAIN/bin/llvm-ranlib
+ENV STRIP $TOOLCHAIN/bin/llvm-strip
+ENV PREFIX /root/usr/local
 
-# It would be better to use nearest ubuntu archive mirror for faster
-# downloads.
-# RUN sed -ie 's/archive\.ubuntu/jp.archive.ubuntu/g' /etc/apt/sources.list
+WORKDIR /root
+RUN apt-get update && \
+    apt-get install -y unzip make binutils autoconf \
+      automake autotools-dev libtool pkg-config git \
+      curl dpkg-dev libxml2-dev genisoimage libc6-i386 \
+      lib32stdc++6 && \
+    rm -rf /var/cache/apt/*
 
-RUN apt-get update
-# genisoimage, libc6-i386 and lib32stdc++6 are required to decompress ndk.
-RUN apt-get install -y make binutils autoconf automake autotools-dev libtool \
-    pkg-config git curl dpkg-dev libxml2-dev \
-    genisoimage libc6-i386 lib32stdc++6
+# Download NDK
+RUN curl -L -O https://dl.google.com/android/repository/android-ndk-$NDK_VERSION-linux.zip && \
+   unzip -q android-ndk-$NDK_VERSION-linux.zip && \
+   rm android-ndk-$NDK_VERSION-linux.zip
+
+# Setup version of libraries
+ENV OPENSSL_VERSION 1.1.1q
+ENV LIBEV_VERSION 4.33
+ENV ZLIB_VERSION 1.2.13
+ENV CARES_VERSION 1.18.1
+ENV NGHTTP2_VERSION master
 
 WORKDIR /root/build
-RUN curl -L -O http://dl.google.com/android/ndk/android-ndk-r10d-linux-x86_64.bin && \
-    chmod a+x android-ndk-r10d-linux-x86_64.bin && \
-    ./android-ndk-r10d-linux-x86_64.bin && \
-    rm android-ndk-r10d-linux-x86_64.bin
+RUN curl -L -O https://www.openssl.org/source/openssl-$OPENSSL_VERSION.tar.gz && \
+    tar xf openssl-$OPENSSL_VERSION.tar.gz && \
+    rm openssl-$OPENSSL_VERSION.tar.gz
 
-WORKDIR /root/build/android-ndk-r10d
-RUN /bin/bash build/tools/make-standalone-toolchain.sh \
-    --install-dir=$ANDROID_HOME/toolchain \
-    --toolchain=arm-linux-androideabi-4.9 --llvm-version=3.5 \
-    --system=linux-x86_64
-
-WORKDIR /root/build
-RUN git clone https://github.com/tatsuhiro-t/spdylay
-WORKDIR /root/build/spdylay
-RUN autoreconf -i && \
-    ./configure \
-    --disable-shared \
-    --host=arm-linux-androideabi \
-    --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
-    --prefix=$PREFIX \
-    --without-libxml2 \
-    --disable-src \
-    --disable-examples \
-    CPPFLAGS="-I$PREFIX/include" \
-    PKG_CONFIG_LIBDIR="$PREFIX/lib/pkgconfig" \
-    LDFLAGS="-L$PREFIX/lib" && \
-    make install
-
-WORKDIR /root/build
-RUN curl -L -O https://www.openssl.org/source/openssl-1.0.2d.tar.gz && \
-    tar xf openssl-1.0.2d.tar.gz && \
-    rm openssl-1.0.2d.tar.gz
-
-WORKDIR /root/build/openssl-1.0.2d
-RUN export CROSS_COMPILE=$TOOLCHAIN/bin/arm-linux-androideabi- && \
-    ./Configure --prefix=$PREFIX android && \
+WORKDIR /root/build/openssl-$OPENSSL_VERSION
+RUN export ANDROID_NDK_HOME=$NDK PATH=$TOOLCHAIN/bin:$PATH && \
+    ./Configure no-shared --prefix=$PREFIX android-arm64 && \
     make && make install_sw
 
 WORKDIR /root/build
-RUN curl -L -O http://dist.schmorp.de/libev/libev-4.19.tar.gz && \
-    curl -L -O https://gist.github.com/tatsuhiro-t/48c45f08950f587180ed/raw/80a8f003b5d1091eae497c5995bbaa68096e739b/libev-4.19-android.patch && \
-    tar xf libev-4.19.tar.gz && \
-    rm libev-4.19.tar.gz
+RUN curl -L -O http://dist.schmorp.de/libev/Attic/libev-$LIBEV_VERSION.tar.gz && \
+    tar xf libev-$LIBEV_VERSION.tar.gz && \
+    rm libev-$LIBEV_VERSION.tar.gz
 
-WORKDIR /root/build/libev-4.19
-RUN patch -p1 < ../libev-4.19-android.patch && \
-    ./configure \
-    --host=arm-linux-androideabi \
+WORKDIR /root/build/libev-$LIBEV_VERSION
+RUN ./configure \
+    --host=$TARGET \
     --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
     --prefix=$PREFIX \
     --disable-shared \
@@ -87,17 +75,12 @@ RUN patch -p1 < ../libev-4.19-android.patch && \
     make install
 
 WORKDIR /root/build
-RUN curl -L -O http://zlib.net/zlib-1.2.8.tar.gz && \
-    tar xf zlib-1.2.8.tar.gz && \
-    rm zlib-1.2.8.tar.gz
+RUN curl -L -O https://zlib.net/zlib-$ZLIB_VERSION.tar.gz && \
+    tar xf zlib-$ZLIB_VERSION.tar.gz && \
+    rm zlib-$ZLIB_VERSION.tar.gz
 
-WORKDIR /root/build/zlib-1.2.8
-RUN HOST=arm-linux-androideabi \
-    CC=$HOST-gcc \
-    AR=$HOST-ar \
-    LD=$HOST-ld \
-    RANLIB=$HOST-ranlib \
-    STRIP=$HOST-strip \
+WORKDIR /root/build/zlib-$ZLIB_VERSION
+RUN HOST=$TARGET \
     ./configure \
     --prefix=$PREFIX \
     --libdir=$PREFIX/lib \
@@ -105,24 +88,34 @@ RUN HOST=arm-linux-androideabi \
     --static && \
     make install
 
+
 WORKDIR /root/build
-RUN git clone https://github.com/nghttp2/nghttp2
+RUN curl -L -O https://c-ares.haxx.se/download/c-ares-$CARES_VERSION.tar.gz && \
+    tar xf c-ares-$CARES_VERSION.tar.gz && \
+    rm c-ares-$CARES_VERSION.tar.gz
+
+WORKDIR /root/build/c-ares-$CARES_VERSION
+RUN ./configure \
+      --host=$TARGET \
+      --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
+      --prefix=$PREFIX \
+      --disable-shared && \
+    make install
+
+WORKDIR /root/build
+RUN git clone https://github.com/nghttp2/nghttp2 -b $NGHTTP2_VERSION --depth 1
 WORKDIR /root/build/nghttp2
 RUN autoreconf -i && \
     ./configure \
+    --enable-app \
     --disable-shared \
-    --host=arm-linux-androideabi \
+    --host=$TARGET \
     --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
-    --with-xml-prefix="$PREFIX" \
     --without-libxml2 \
-    --disable-python-bindings \
     --disable-examples \
     --disable-threads \
-    LIBSPDYLAY_CFLAGS=-I$PREFIX/usr/local/include \
-    LIBSPDYLAY_LIBS="-L$PREFIX/usr/local/lib -lspdylay" \
-    CPPFLAGS="-fPIE -I$PREFIX/include" \
-    CXXFLAGS="-fno-strict-aliasing" \
-    PKG_CONFIG_LIBDIR="$PREFIX/lib/pkgconfig" \
-    LDFLAGS="-fPIE -pie -L$PREFIX/lib" && \
+      CPPFLAGS="-fPIE -I$PREFIX/include" \
+      PKG_CONFIG_LIBDIR="$PREFIX/lib/pkgconfig" \
+      LDFLAGS="-fPIE -pie -L$PREFIX/lib" && \
     make && \
-    arm-linux-androideabi-strip src/nghttpx src/nghttpd src/nghttp
+    $STRIP src/nghttpx src/nghttpd src/nghttp

Makefile.am

@@ -20,41 +20,40 @@
 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-SUBDIRS = lib third-party src examples python tests integration-tests \
+SUBDIRS = lib third-party src bpf examples tests integration-tests \
 	doc contrib script
 
-# Now with python setuptools, make uninstall will leave many files we
-# cannot easily remove (e.g., easy-install.pth).  Disable it for
-# distcheck rule.
-AM_DISTCHECK_CONFIGURE_FLAGS = --disable-python-bindings
-
 ACLOCAL_AMFLAGS = -I m4
 
 dist_doc_DATA = README.rst
 
-EXTRA_DIST = nghttpx.conf.sample proxy.pac.sample android-config android-make \
+EXTRA_DIST = nghttpx.conf.sample proxy.pac.sample android-config android-env \
 	Dockerfile.android \
 	cmakeconfig.h.in \
 	CMakeLists.txt \
 	CMakeOptions.txt \
-	cmake/FindSpdylay.cmake \
 	cmake/ExtractValidFlags.cmake \
 	cmake/FindJemalloc.cmake \
 	cmake/FindLibev.cmake \
 	cmake/FindCUnit.cmake \
 	cmake/Version.cmake \
-	cmake/FindCython.cmake \
 	cmake/FindLibevent.cmake \
-	cmake/FindJansson.cmake
+	cmake/FindJansson.cmake \
+	cmake/FindLibcares.cmake \
+	cmake/FindSystemd.cmake \
+	cmake/FindLibbpf.cmake \
+	cmake/FindLibnghttp3.cmake \
+	cmake/FindLibngtcp2.cmake \
+	cmake/FindLibngtcp2_crypto_openssl.cmake
 
 .PHONY: clang-format
 
 # Format source files using clang-format.  Don't format source files
-# under third-party directory since we are not responsible for thier
+# under third-party directory since we are not responsible for their
 # coding style.
 clang-format:
 	CLANGFORMAT=`git config --get clangformat.binary`; \
 	test -z $${CLANGFORMAT} && CLANGFORMAT="clang-format"; \
 	$${CLANGFORMAT} -i lib/*.{c,h} lib/includes/nghttp2/*.h \
-	src/*.{c,cc,h} src/includes/nghttp2/*.h examples/*.{c,cc} \
-	tests/*.{c,h}
+	src/*.{c,cc,h} examples/*.{c,cc} \
+	tests/*.{c,h} bpf/*.c fuzz/*.cc

README.rst

@@ -4,24 +4,21 @@ nghttp2 - HTTP/2 C Library
 This is an implementation of the Hypertext Transfer Protocol version 2
 in C.
 
-The framing layer of HTTP/2 is implemented as a reusable C
-library.  On top of that, we have implemented an HTTP/2 client, server
-and proxy.  We have also developed load test and benchmarking tools for
-HTTP/2 and SPDY.
+The framing layer of HTTP/2 is implemented as a reusable C library.
+On top of that, we have implemented an HTTP/2 client, server and
+proxy.  We have also developed load test and benchmarking tools for
+HTTP/2.
 
 An HPACK encoder and decoder are available as a public API.
 
-An experimental high level C++ library is also available.
-
-We have Python bindings of this library, but we do not have full
-code coverage yet.
-
 Development Status
 ------------------
 
-We have implemented `RFC 7540 <https://tools.ietf.org/html/rfc7540>`_
-HTTP/2 and `RFC 7541 <https://tools.ietf.org/html/rfc7541>`_ HPACK -
-Header Compression for HTTP/2
+nghttp2 was originally developed based on `RFC 7540
+<https://tools.ietf.org/html/rfc7540>`_ HTTP/2 and `RFC 7541
+<https://tools.ietf.org/html/rfc7541>`_ HPACK - Header Compression for
+HTTP/2.  Now we are updating our code to implement `RFC 9113
+<https://datatracker.ietf.org/doc/html/rfc9113>`_.
 
 The nghttp2 code base was forked from the spdylay
 (https://github.com/tatsuhiro-t/spdylay) project.
@@ -32,12 +29,14 @@ Public Test Server
 The following endpoints are available to try out our nghttp2
 implementation.
 
-* https://nghttp2.org/ (TLS + ALPN/NPN)
+* https://nghttp2.org/ (TLS + ALPN/NPN and HTTP/3)
 
-  This endpoint supports ``h2``, ``h2-16``, ``h2-14``, ``spdy/3.1``
-  and ``http/1.1`` via ALPN/NPN and requires TLSv1.2 for HTTP/2
+  This endpoint supports ``h2``, ``h2-16``, ``h2-14``, and
+  ``http/1.1`` via ALPN/NPN and requires TLSv1.2 for HTTP/2
   connection.
 
+  It also supports HTTP/3.
+
 * http://nghttp2.org/ (HTTP Upgrade and HTTP/2 Direct)
 
   ``h2c`` and ``http/1.1``.
@@ -70,20 +69,21 @@ are required:
 * OpenSSL >= 1.0.1
 * libev >= 4.11
 * zlib >= 1.2.3
+* libc-ares >= 1.7.5
 
 ALPN support requires OpenSSL >= 1.0.2 (released 22 January 2015).
 LibreSSL >= 2.2.0 can be used instead of OpenSSL, but OpenSSL has more
 features than LibreSSL at the time of this writing.
 
-To enable the SPDY protocol in the application program ``nghttpx`` and
-``h2load``, the following package is required:
-
-* spdylay >= 1.3.2
-
 To enable ``-a`` option (getting linked assets from the downloaded
 resource) in ``nghttp``, the following package is required:
 
-* libxml2 >= 2.7.7
+* libxml2 >= 2.6.26
+
+To enable systemd support in nghttpx, the following package is
+required:
+
+* libsystemd-dev >= 209
 
 The HPACK tools require the following package:
 
@@ -98,28 +98,10 @@ To mitigate heap fragmentation in long running server programs
 
 * jemalloc
 
-libnghttp2_asio C++ library requires the following packages:
+  .. note::
 
-* libboost-dev >= 1.54.0
-* libboost-thread-dev >= 1.54.0
-
-The Python bindings require the following packages:
-
-* cython >= 0.19
-* python >= 2.7
-* python-setuptools
-
-If you are using Ubuntu 14.04 LTS (trusty) or Debian 7.0 (wheezy) and above run the following to install the needed packages:
-
-.. code-block:: text
-
-    sudo apt-get install g++ make binutils autoconf automake autotools-dev libtool pkg-config \
-      zlib1g-dev libcunit1-dev libssl-dev libxml2-dev libev-dev libevent-dev libjansson-dev \
-      libjemalloc-dev cython python3-dev python-setuptools
-
-From Ubuntu 15.10, spdylay has been available as a package named
-`libspdylay-dev`.  For the earlier Ubuntu release, you need to build
-it yourself: http://tatsuhiro-t.github.io/spdylay/
+     Alpine Linux currently does not support malloc replacement
+     due to musl limitations. See details in issue `#762 <https://github.com/nghttp2/nghttp2/issues/762>`_.
 
 To enable mruby support for nghttpx, `mruby
 <https://github.com/mruby/mruby>`_ is required.  We need to build
@@ -141,26 +123,41 @@ minimizes the risk of private key leakage when serious bug like
 Heartbleed is exploited.  The neverbleed is disabled by default.  To
 enable it, use ``--with-neverbleed`` configure option.
 
-Building from git
------------------
+To enable the experimental HTTP/3 support for h2load and nghttpx, the
+following libraries are required:
 
-Building from git is easy, but please be sure that at least autoconf 2.68 is
-used:
+* `OpenSSL with QUIC support
+  <https://github.com/quictls/openssl/tree/OpenSSL_1_1_1s+quic>`_; or
+  `BoringSSL <https://boringssl.googlesource.com/boringssl/>`_ (commit
+  80a243e07ef77156af66efa7d22ac35aba44c1b3)
+* `ngtcp2 <https://github.com/ngtcp2/ngtcp2>`_ >= 0.13.0
+* `nghttp3 <https://github.com/ngtcp2/nghttp3>`_ >= 0.7.0
 
-.. code-block:: text
+Use ``--enable-http3`` configure option to enable HTTP/3 feature for
+h2load and nghttpx.
 
-    $ autoreconf -i
-    $ automake
-    $ autoconf
-    $ ./configure
-    $ make
+In order to build optional eBPF program to direct an incoming QUIC UDP
+datagram to a correct socket for nghttpx, the following libraries are
+required:
 
-To compile the source code, gcc >= 4.8.3 or clang >= 3.4 is required.
+* libbpf-dev >= 0.7.0
+
+Use ``--with-libbpf`` configure option to build eBPF program.
+libelf-dev is needed to build libbpf.
+
+For Ubuntu 20.04, you can build libbpf from `the source code
+<https://github.com/libbpf/libbpf/releases/tag/v1.0.1>`_.  nghttpx
+requires eBPF program for reloading its configuration and hot swapping
+its executable.
+
+Compiling libnghttp2 C source code requires a C99 compiler.  gcc 4.8
+is known to be adequate.  In order to compile the C++ source code, gcc
+>= 6.0 or clang >= 6.0 is required.  C++ source code requires C++14
+language features.
 
 .. note::
 
-   To enable mruby support in nghttpx, run ``git submodule update
-   --init`` before running configure script, and use ``--with-mruby``
+   To enable mruby support in nghttpx, and use ``--with-mruby``
    configure option.
 
 .. note::
@@ -181,6 +178,74 @@ To compile the source code, gcc >= 4.8.3 or clang >= 3.4 is required.
    applications were not built, then using ``--enable-app`` may find
    that cause, such as the missing dependency.
 
+.. note::
+
+   In order to detect third party libraries, pkg-config is used
+   (however we don't use pkg-config for some libraries (e.g., libev)).
+   By default, pkg-config searches ``*.pc`` file in the standard
+   locations (e.g., /usr/lib/pkgconfig).  If it is necessary to use
+   ``*.pc`` file in the custom location, specify paths to
+   ``PKG_CONFIG_PATH`` environment variable, and pass it to configure
+   script, like so:
+
+   .. code-block:: text
+
+       $ ./configure PKG_CONFIG_PATH=/path/to/pkgconfig
+
+   For pkg-config managed libraries, ``*_CFLAG`` and ``*_LIBS``
+   environment variables are defined (e.g., ``OPENSSL_CFLAGS``,
+   ``OPENSSL_LIBS``).  Specifying non-empty string to these variables
+   completely overrides pkg-config.  In other words, if they are
+   specified, pkg-config is not used for detection, and user is
+   responsible to specify the correct values to these variables.  For
+   complete list of these variables, run ``./configure -h``.
+
+If you are using Ubuntu 22.04 LTS, run the following to install the
+required packages:
+
+.. code-block:: text
+
+    sudo apt-get install g++ clang make binutils autoconf automake \
+      autotools-dev libtool pkg-config \
+      zlib1g-dev libcunit1-dev libssl-dev libxml2-dev libev-dev \
+      libevent-dev libjansson-dev \
+      libc-ares-dev libjemalloc-dev libsystemd-dev \
+      ruby-dev bison libelf-dev
+
+Building nghttp2 from release tar archive
+-----------------------------------------
+
+The nghttp2 project regularly releases tar archives which includes
+nghttp2 source code, and generated build files.  They can be
+downloaded from `Releases
+<https://github.com/nghttp2/nghttp2/releases>`_ page.
+
+Building nghttp2 from git requires autotools development packages.
+Building from tar archives does not require them, and thus it is much
+easier.  The usual build step is as follows:
+
+.. code-block:: text
+
+    $ tar xf nghttp2-X.Y.Z.tar.bz2
+    $ cd nghttp2-X.Y.Z
+    $ ./configure
+    $ make
+
+Building from git
+-----------------
+
+Building from git is easy, but please be sure that at least autoconf 2.68 is
+used:
+
+.. code-block:: text
+
+    $ git submodule update --init
+    $ autoreconf -i
+    $ automake
+    $ autoconf
+    $ ./configure
+    $ make
+
 Notes for building on Windows (MSVC)
 ------------------------------------
 
@@ -227,6 +292,18 @@ If you want to compile the applications under ``examples/``, you need
 to remove or rename the ``event.h`` from libev's installation, because
 it conflicts with libevent's installation.
 
+Notes for installation on Linux systems
+--------------------------------------------
+After installing nghttp2 tool suite with ``make install`` one might experience a similar error:
+
+.. code-block:: text
+
+    nghttpx: error while loading shared libraries: libnghttp2.so.14: cannot open shared object file: No such file or directory
+
+This means that the tool is unable to locate the ``libnghttp2.so`` shared library.
+
+To update the shared library cache run ``sudo ldconfig``.
+
 Building the documentation
 --------------------------
 
@@ -247,6 +324,87 @@ The generated documents will not be installed with ``make install``.
 The online documentation is available at
 https://nghttp2.org/documentation/
 
+Build HTTP/3 enabled h2load and nghttpx
+---------------------------------------
+
+To build h2load and nghttpx with HTTP/3 feature enabled, run the
+configure script with ``--enable-http3``.
+
+For nghttpx to reload configurations and swapping its executable while
+gracefully terminating old worker processes, eBPF is required.  Run
+the configure script with ``--enable-http3 --with-libbpf`` to build
+eBPF program.  The QUIC keying material must be set with
+``--frontend-quic-secret-file`` in order to keep the existing
+connections alive during reload.
+
+The detailed steps to build HTTP/3 enabled h2load and nghttpx follow.
+
+Build custom OpenSSL:
+
+.. code-block:: text
+
+   $ git clone --depth 1 -b OpenSSL_1_1_1s+quic https://github.com/quictls/openssl
+   $ cd openssl
+   $ ./config --prefix=$PWD/build --openssldir=/etc/ssl
+   $ make -j$(nproc)
+   $ make install_sw
+   $ cd ..
+
+Build nghttp3:
+
+.. code-block:: text
+
+   $ git clone --depth 1 -b v0.8.0 https://github.com/ngtcp2/nghttp3
+   $ cd nghttp3
+   $ autoreconf -i
+   $ ./configure --prefix=$PWD/build --enable-lib-only
+   $ make -j$(nproc)
+   $ make install
+   $ cd ..
+
+Build ngtcp2:
+
+.. code-block:: text
+
+   $ git clone --depth 1 -b v0.13.0 https://github.com/ngtcp2/ngtcp2
+   $ cd ngtcp2
+   $ autoreconf -i
+   $ ./configure --prefix=$PWD/build --enable-lib-only \
+         PKG_CONFIG_PATH="$PWD/../openssl/build/lib/pkgconfig"
+   $ make -j$(nproc)
+   $ make install
+   $ cd ..
+
+If your Linux distribution does not have libbpf-dev >= 0.7.0, build
+from source:
+
+.. code-block:: text
+
+   $ git clone --depth 1 -b v1.0.1 https://github.com/libbpf/libbpf
+   $ cd libbpf
+   $ PREFIX=$PWD/build make -C src install
+   $ cd ..
+
+Build nghttp2:
+
+.. code-block:: text
+
+   $ git clone https://github.com/nghttp2/nghttp2
+   $ cd nghttp2
+   $ git submodule update --init
+   $ autoreconf -i
+   $ ./configure --with-mruby --with-neverbleed --enable-http3 --with-libbpf \
+         CC=clang-14 CXX=clang++-14 \
+         PKG_CONFIG_PATH="$PWD/../openssl/build/lib/pkgconfig:$PWD/../nghttp3/build/lib/pkgconfig:$PWD/../ngtcp2/build/lib/pkgconfig:$PWD/../libbpf/build/lib64/pkgconfig" \
+         LDFLAGS="$LDFLAGS -Wl,-rpath,$PWD/../openssl/build/lib -Wl,-rpath,$PWD/../libbpf/build/lib64"
+   $ make -j$(nproc)
+
+The eBPF program ``reuseport_kern.o`` should be found under bpf
+directory.  Pass ``--quic-bpf-program-file=bpf/reuseport_kern.o``
+option to nghttpx to load it.  See also `HTTP/3 section in nghttpx -
+HTTP/2 proxy - HOW-TO
+<https://nghttp2.org/documentation/nghttpx-howto.html#http-3>`_.
+
 Unit tests
 ----------
 
@@ -262,14 +420,8 @@ its testing framework.  We depend on the following libraries:
 * golang.org/x/net/http2
 * golang.org/x/net/websocket
 * https://github.com/tatsuhiro-t/go-nghttp2
-* https://github.com/tatsuhiro-t/spdy
 
-To download the above packages, after settings ``GOPATH``, run the
-following command under ``integration-tests`` directory:
-
-.. code-block:: text
-
-    $ make itprep
+Go modules will download these dependencies automatically.
 
 To run the tests, run the following command under
 ``integration-tests`` directory:
@@ -280,11 +432,6 @@ To run the tests, run the following command under
 
 Inside the tests, we use port 3009 to run the test subject server.
 
-.. note::
-
-   github.com/tatsuhiro-t/spdy is a copy used to be available at
-   golang.org/x/net/spdy, but it is now gone.
-
 Migration from v0.7.15 or earlier
 ---------------------------------
 
@@ -685,7 +832,7 @@ information.  Here is sample output from ``nghttpd``:
 nghttpx - proxy
 +++++++++++++++
 
-``nghttpx`` is a multi-threaded reverse proxy for HTTP/2, SPDY and
+``nghttpx`` is a multi-threaded reverse proxy for HTTP/3, HTTP/2, and
 HTTP/1.1, and powers http://nghttp2.org and supports HTTP/2 server
 push.
 
@@ -700,31 +847,30 @@ to know how to migrate from earlier releases.
 ``nghttpx`` implements `important performance-oriented features
 <https://istlsfastyet.com/#server-performance>`_ in TLS, such as
 session IDs, session tickets (with automatic key rotation), OCSP
-stapling, dynamic record sizing, ALPN/NPN, forward secrecy and SPDY &
-HTTP/2.  ``nghttpx`` also offers the functionality to share session
-cache and ticket keys among multiple ``nghttpx`` instances via
-memcached.
+stapling, dynamic record sizing, ALPN/NPN, forward secrecy and HTTP/2.
+``nghttpx`` also offers the functionality to share session cache and
+ticket keys among multiple ``nghttpx`` instances via memcached.
 
 ``nghttpx`` has 2 operation modes:
 
-================== ====================== ================ =============
-Mode option        Frontend               Backend          Note
-================== ====================== ================ =============
-default mode       HTTP/2, SPDY, HTTP/1.1 HTTP/1.1, HTTP/2 Reverse proxy
-``--http2-proxy``  HTTP/2, SPDY, HTTP/1.1 HTTP/1.1, HTTP/2 Forward proxy
-================== ====================== ================ =============
+================== ======================== ================ =============
+Mode option        Frontend                 Backend          Note
+================== ======================== ================ =============
+default mode       HTTP/3, HTTP/2, HTTP/1.1 HTTP/1.1, HTTP/2 Reverse proxy
+``--http2-proxy``  HTTP/3, HTTP/2, HTTP/1.1 HTTP/1.1, HTTP/2 Forward proxy
+================== ======================== ================ =============
 
 The interesting mode at the moment is the default mode.  It works like
-a reverse proxy and listens for HTTP/2, SPDY and HTTP/1.1 and can be
-deployed as a SSL/TLS terminator for existing web server.
+a reverse proxy and listens for HTTP/3, HTTP/2, and HTTP/1.1 and can
+be deployed as a SSL/TLS terminator for existing web server.
 
 In all modes, the frontend connections are encrypted by SSL/TLS by
 default.  To disable encryption, use the ``no-tls`` keyword in
-``--frontend`` option.  If encryption is disabled, SPDY is disabled in
-the frontend and incoming HTTP/1.1 connections can be upgraded to
-HTTP/2 through HTTP Upgrade.  On the other hard, backend connections
-are not encrypted by default.  To encrypt backend connections, use
-``tls`` keyword in ``--backend`` option.
+``--frontend`` option.  If encryption is disabled, incoming HTTP/1.1
+connections can be upgraded to HTTP/2 through HTTP Upgrade.  On the
+other hard, backend connections are not encrypted by default.  To
+encrypt backend connections, use ``tls`` keyword in ``--backend``
+option.
 
 ``nghttpx`` supports a configuration file.  See the ``--conf`` option and
 sample configuration file ``nghttpx.conf.sample``.
@@ -734,16 +880,16 @@ server:
 
 .. code-block:: text
 
-    Client <-- (HTTP/2, SPDY, HTTP/1.1) --> nghttpx <-- (HTTP/1.1, HTTP/2) --> Web Server
-                                          [reverse proxy]
+    Client <-- (HTTP/3, HTTP/2, HTTP/1.1) --> nghttpx <-- (HTTP/1.1, HTTP/2) --> Web Server
+                                            [reverse proxy]
 
 With the ``--http2-proxy`` option, it works as forward proxy, and it
-is so called secure HTTP/2 proxy (aka SPDY proxy):
+is so called secure HTTP/2 proxy:
 
 .. code-block:: text
 
-    Client <-- (HTTP/2, SPDY, HTTP/1.1) --> nghttpx <-- (HTTP/1.1) --> Proxy
-                                           [secure proxy]          (e.g., Squid, ATS)
+    Client <-- (HTTP/3, HTTP/2, HTTP/1.1) --> nghttpx <-- (HTTP/1.1) --> Proxy
+                                             [secure proxy]          (e.g., Squid, ATS)
 
 The ``Client`` in the above example needs to be configured to use
 ``nghttpx`` as secure proxy.
@@ -775,7 +921,7 @@ proxy through an HTTP proxy:
 
 .. code-block:: text
 
-    Client <-- (HTTP/2, SPDY, HTTP/1.1) --> nghttpx <-- (HTTP/2) --
+    Client <-- (HTTP/3, HTTP/2, HTTP/1.1) --> nghttpx <-- (HTTP/2) --
 
             --===================---> HTTP/2 Proxy
               (HTTP proxy tunnel)     (e.g., nghttpx -s)
@@ -783,9 +929,8 @@ proxy through an HTTP proxy:
 Benchmarking tool
 -----------------
 
-The ``h2load`` program is a benchmarking tool for HTTP/2 and SPDY.
-The SPDY support is enabled if the program was built with the spdylay
-library.  The UI of ``h2load`` is heavily inspired by ``weighttp``
+The ``h2load`` program is a benchmarking tool for HTTP/3, HTTP/2, and
+HTTP/1.1.  The UI of ``h2load`` is heavily inspired by ``weighttp``
 (https://github.com/lighttpd/weighttp).  The typical usage is as
 follows:
 
@@ -828,6 +973,14 @@ threads to avoid saturating a single core on client side.
    considered a DOS attack.  Please only use it against your private
    servers.
 
+If the experimental HTTP/3 is enabled, h2load can send requests to
+HTTP/3 server.  To do this, specify ``h3`` to ``--npn-list`` option
+like so:
+
+.. code-block:: text
+
+    $ h2load --npn-list h3 https://127.0.0.1:4433
+
 HPACK tools
 -----------
 
@@ -901,7 +1054,7 @@ output_length
     The length of the compressed header block.
 
 percentage_of_original_size
-    ``input_length`` / ``output_length`` * 100
+    ``output_length`` / ``input_length`` * 100
 
 wire
     The compressed header block as a hex string.
@@ -1265,219 +1418,6 @@ associated value includes the state of the dynamic header table after the
 corresponding header set was processed.  The format is the same as
 ``deflatehd``.
 
-libnghttp2_asio: High level HTTP/2 C++ library
-----------------------------------------------
-
-libnghttp2_asio is C++ library built on top of libnghttp2 and provides
-high level abstraction API to build HTTP/2 applications.  It depends
-on the Boost::ASIO library and OpenSSL.  Currently libnghttp2_asio
-provides both client and server APIs.
-
-libnghttp2_asio is not built by default.  Use the ``--enable-asio-lib``
-configure flag to build libnghttp2_asio.  The required Boost libraries
-are:
-
-* Boost::Asio
-* Boost::System
-* Boost::Thread
-
-The server API is designed to build an HTTP/2 server very easily to utilize
-C++11 anonymous functions and closures.  The bare minimum example of
-an HTTP/2 server looks like this:
-
-.. code-block:: cpp
-
-    #include <iostream>
-
-    #include <nghttp2/asio_http2_server.h>
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::server;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      http2 server;
-
-      server.handle("/", [](const request &req, const response &res) {
-        res.write_head(200);
-        res.end("hello, world\n");
-      });
-
-      if (server.listen_and_serve(ec, "localhost", "3000")) {
-        std::cerr << "error: " << ec.message() << std::endl;
-      }
-    }
-
-Here is sample code to use the client API:
-
-.. code-block:: cpp
-
-    #include <iostream>
-
-    #include <nghttp2/asio_http2_client.h>
-
-    using boost::asio::ip::tcp;
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::client;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      boost::asio::io_service io_service;
-
-      // connect to localhost:3000
-      session sess(io_service, "localhost", "3000");
-
-      sess.on_connect([&sess](tcp::resolver::iterator endpoint_it) {
-        boost::system::error_code ec;
-
-        auto req = sess.submit(ec, "GET", "http://localhost:3000/");
-
-        req->on_response([](const response &res) {
-          // print status code and response header fields.
-          std::cerr << "HTTP/2 " << res.status_code() << std::endl;
-          for (auto &kv : res.header()) {
-            std::cerr << kv.first << ": " << kv.second.value << "\n";
-          }
-          std::cerr << std::endl;
-
-          res.on_data([](const uint8_t *data, std::size_t len) {
-            std::cerr.write(reinterpret_cast<const char *>(data), len);
-            std::cerr << std::endl;
-          });
-        });
-
-        req->on_close([&sess](uint32_t error_code) {
-          // shutdown session after first request was done.
-          sess.shutdown();
-        });
-      });
-
-      sess.on_error([](const boost::system::error_code &ec) {
-        std::cerr << "error: " << ec.message() << std::endl;
-      });
-
-      io_service.run();
-    }
-
-For more details, see the documentation of libnghttp2_asio.
-
-Python bindings
----------------
-
-The ``python`` directory contains nghttp2 Python bindings.  The
-bindings currently provide HPACK compressor and decompressor classes
-and an HTTP/2 server.
-
-The extension module is called ``nghttp2``.
-
-``make`` will build the bindings and target Python version is
-determined by the ``configure`` script.  If the detected Python version is not
-what you expect, specify a path to Python executable in a ``PYTHON``
-variable as an argument to configure script (e.g., ``./configure
-PYTHON=/usr/bin/python3.5``).
-
-The following example code illustrates basic usage of the HPACK compressor
-and decompressor in Python:
-
-.. code-block:: python
-
-    import binascii
-    import nghttp2
-
-    deflater = nghttp2.HDDeflater()
-    inflater = nghttp2.HDInflater()
-
-    data = deflater.deflate([(b'foo', b'bar'),
-                             (b'baz', b'buz')])
-    print(binascii.b2a_hex(data))
-
-    hdrs = inflater.inflate(data)
-    print(hdrs)
-
-The ``nghttp2.HTTP2Server`` class builds on top of the asyncio event
-loop.  On construction, *RequestHandlerClass* must be given, which
-must be a subclass of ``nghttp2.BaseRequestHandler`` class.
-
-The ``BaseRequestHandler`` class is used to handle the HTTP/2 stream.
-By default, it does nothing.  It must be subclassed to handle each
-event callback method.
-
-The first callback method invoked is ``on_headers()``.  It is called
-when HEADERS frame, which includes the request header fields, has arrived.
-
-If the request has a request body, ``on_data(data)`` is invoked for each
-chunk of received data.
-
-Once the entire request is received, ``on_request_done()`` is invoked.
-
-When the stream is closed, ``on_close(error_code)`` is called.
-
-The application can send a response using ``send_response()`` method.
-It can be used in ``on_headers()``, ``on_data()`` or
-``on_request_done()``.
-
-The application can push resources using the ``push()`` method.  It must be
-used before the ``send_response()`` call.
-
-The following instance variables are available:
-
-client_address
-    Contains a tuple of the form (host, port) referring to the
-    client's address.
-
-stream_id
-    Stream ID of this stream.
-
-scheme
-    Scheme of the request URI.  This is a value of :scheme header
-    field.
-
-method
-    Method of this stream.  This is a value of :method header field.
-
-host
-    This is a value of :authority or host header field.
-
-path
-    This is a value of :path header field.
-
-The following example illustrates the HTTP2Server and
-BaseRequestHandler usage:
-
-.. code-block:: python
-
-    #!/usr/bin/env python
-
-    import io, ssl
-    import nghttp2
-
-    class Handler(nghttp2.BaseRequestHandler):
-
-        def on_headers(self):
-            self.push(path='/css/bootstrap.css',
-                      request_headers = [('content-length', '3')],
-                      status=200,
-                      body='foo')
-
-            self.push(path='/js/bootstrap.js',
-                      method='GET',
-                      request_headers = [('content-length', '10')],
-                      status=200,
-                      body='foobarbuzz')
-
-            self.send_response(status=200,
-                               headers = [('content-type', 'text/plain')],
-                               body=io.BytesIO(b'nghttp2-python FTW'))
-
-    ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
-    ctx.options = ssl.OP_ALL | ssl.OP_NO_SSLv2
-    ctx.load_cert_chain('server.crt', 'server.key')
-
-    # give None to ssl to make the server non-SSL/TLS
-    server = nghttp2.HTTP2Server(('127.0.0.1', 8443), Handler, ssl=ctx)
-    server.serve_forever()
-
 Contribution
 ------------
 

android-config

@@ -23,24 +23,15 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-if [ -z "$ANDROID_HOME" ]; then
-    echo 'No $ANDROID_HOME specified.'
-    exit 1
-fi
-PREFIX="$ANDROID_HOME"/usr/local
-TOOLCHAIN="$ANDROID_HOME"/toolchain
-PATH="$TOOLCHAIN"/bin:"$PATH"
+. ./android-env
 
 ./configure \
     --disable-shared \
-    --host=arm-linux-androideabi \
+    --host=$TARGET \
     --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
-    --with-xml-prefix="$PREFIX" \
     --without-libxml2 \
-    --disable-python-bindings \
     --disable-examples \
-    CC="$TOOLCHAIN"/bin/arm-linux-androideabi-gcc \
-    CXX="$TOOLCHAIN"/bin/arm-linux-androideabi-g++ \
+    --disable-threads \
     CPPFLAGS="-fPIE -I$PREFIX/include" \
     PKG_CONFIG_LIBDIR="$PREFIX/lib/pkgconfig" \
     LDFLAGS="-fPIE -pie -L$PREFIX/lib"

android-env

@@ -2,7 +2,7 @@
 #
 # nghttp2 - HTTP/2 C Library
 #
-# Copyright (c) 2013 Tatsuhiro Tsujikawa
+# Copyright (c) 2022 nghttp2 contributors
 #
 # Permission is hereby granted, free of charge, to any person obtaining
 # a copy of this software and associated documentation files (the
@@ -23,11 +23,18 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-if [ -z "$ANDROID_HOME" ]; then
-    echo 'No $ANDROID_HOME specified.'
+if [ -z "$NDK" ]; then
+    echo 'No $NDK specified.'
     exit 1
 fi
-TOOLCHAIN=$ANDROID_HOME/toolchain
-PATH=$TOOLCHAIN/bin:$PATH
 
-make "$@"
+export TOOLCHAIN=$NDK/toolchains/llvm/prebuilt/linux-x86_64
+export TARGET=aarch64-linux-android
+export API=33
+export AR=$TOOLCHAIN/bin/llvm-ar
+export CC=$TOOLCHAIN/bin/$TARGET$API-clang
+export CXX=$TOOLCHAIN/bin/$TARGET$API-clang++
+export LD=$TOOLCHAIN/bin/ld
+export RANDLIB=$TOOLCHAIN/bin/llvm-ranlib
+export STRIP=$TOOLCHAIN/bin/llvm-strip
+export PREFIX=$NDK/usr/local

author.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # script to extract commit author's name from standard input.  The
 # input should be <AUTHOR>:<EMAIL>, one per line.
@@ -49,4 +49,4 @@ for name in names:
         ndict[lowname] = name
 
 for name in sorted(ndict.values()):
-    print name
+    print(name)

bpf/CMakeLists.txt

@@ -0,0 +1,13 @@
+if(LIBBPF_FOUND)
+  add_custom_command(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/reuseport_kern.o"
+    COMMAND ${CMAKE_C_COMPILER} ${BPFCFLAGS} ${EXTRABPFCFLAGS} -I${LIBBPF_INCLUDE_DIRS} -target bpf -c reuseport_kern.c -o "${CMAKE_CURRENT_BINARY_DIR}/reuseport_kern.o"
+    WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
+    VERBATIM)
+
+  add_custom_target(bpf ALL
+    DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/reuseport_kern.o"
+    VERBATIM)
+
+  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/reuseport_kern.o"
+    DESTINATION "${CMAKE_INSTALL_LIBDIR}/${CMAKE_PROJECT_NAME}")
+endif()

bpf/Makefile.am

@@ -1,6 +1,6 @@
 # nghttp2 - HTTP/2 C Library
 
-# Copyright (c) 2014 Tatsuhiro Tsujikawa
+# Copyright (c) 2021 Tatsuhiro Tsujikawa
 
 # Permission is hereby granted, free of charge, to any person obtaining
 # a copy of this software and associated documentation files (the
@@ -21,9 +21,20 @@
 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-EXTRA_DIST = CMakeLists.txt
+EXTRA_DIST = CMakeLists.txt reuseport_kern.c
 
-if ENABLE_ASIO_LIB
-nobase_include_HEADERS = nghttp2/asio_http2.h nghttp2/asio_http2_client.h \
-	nghttp2/asio_http2_server.h
-endif # ENABLE_ASIO_LIB
+if HAVE_LIBBPF
+
+bpf_pkglibdir = $(pkglibdir)
+bpf_pkglib_DATA = reuseport_kern.o
+
+all: $(builddir)/reuseport_kern.o
+
+$(builddir)/reuseport_kern.o: reuseport_kern.c
+	$(CC) @LIBBPF_CFLAGS@ @BPFCFLAGS@ @EXTRABPFCFLAGS@ \
+	  -target bpf -c $< -o $@
+
+clean-local:
+	-rm -f reuseport_kern.o
+
+endif # HAVE_LIBBPF

bpf/reuseport_kern.c

@@ -0,0 +1,663 @@
+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2021 Tatsuhiro Tsujikawa
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <linux/udp.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+/*
+ * How to compile:
+ *
+ * clang-12 -O2 -Wall -target bpf -g -c reuseport_kern.c -o reuseport_kern.o \
+ *   -I/path/to/kernel/include
+ *
+ * See
+ * https://www.kernel.org/doc/Documentation/kbuild/headers_install.txt
+ * how to install kernel header files.
+ */
+
+/* AES_CBC_decrypt_buffer: https://github.com/kokke/tiny-AES-c
+   License is Public Domain.  Commit hash:
+   12e7744b4919e9d55de75b7ab566326a1c8e7a67 */
+
+#define AES_BLOCKLEN                                                           \
+  16 /* Block length in bytes - AES is 128b block                              \
+        only */
+
+#define AES_KEYLEN 16 /* Key length in bytes */
+#define AES_keyExpSize 176
+
+struct AES_ctx {
+  __u8 RoundKey[AES_keyExpSize];
+};
+
+/* The number of columns comprising a state in AES. This is a constant
+   in AES. Value=4 */
+#define Nb 4
+
+#define Nk 4  /* The number of 32 bit words in a key. */
+#define Nr 10 /* The number of rounds in AES Cipher. */
+
+/* state - array holding the intermediate results during
+   decryption. */
+typedef __u8 state_t[4][4];
+
+/* The lookup-tables are marked const so they can be placed in
+   read-only storage instead of RAM The numbers below can be computed
+   dynamically trading ROM for RAM - This can be useful in (embedded)
+   bootloader applications, where ROM is often limited. */
+static const __u8 sbox[256] = {
+    /* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
+    0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b,
+    0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
+    0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26,
+    0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
+    0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2,
+    0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
+    0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed,
+    0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
+    0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f,
+    0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
+    0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec,
+    0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
+    0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14,
+    0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
+    0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d,
+    0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
+    0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f,
+    0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
+    0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11,
+    0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
+    0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f,
+    0xb0, 0x54, 0xbb, 0x16};
+
+static const __u8 rsbox[256] = {
+    0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e,
+    0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
+    0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32,
+    0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
+    0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49,
+    0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
+    0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50,
+    0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
+    0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05,
+    0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
+    0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41,
+    0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
+    0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8,
+    0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
+    0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b,
+    0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
+    0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59,
+    0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
+    0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d,
+    0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
+    0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63,
+    0x55, 0x21, 0x0c, 0x7d};
+
+/* The round constant word array, Rcon[i], contains the values given
+   by x to the power (i-1) being powers of x (x is denoted as {02}) in
+   the field GF(2^8) */
+static const __u8 Rcon[11] = {0x8d, 0x01, 0x02, 0x04, 0x08, 0x10,
+                              0x20, 0x40, 0x80, 0x1b, 0x36};
+
+#define getSBoxValue(num) (sbox[(num)])
+
+/* This function produces Nb(Nr+1) round keys. The round keys are used
+   in each round to decrypt the states. */
+static void KeyExpansion(__u8 *RoundKey, const __u8 *Key) {
+  unsigned i, j, k;
+  __u8 tempa[4]; /* Used for the column/row operations */
+
+  /* The first round key is the key itself. */
+  for (i = 0; i < Nk; ++i) {
+    RoundKey[(i * 4) + 0] = Key[(i * 4) + 0];
+    RoundKey[(i * 4) + 1] = Key[(i * 4) + 1];
+    RoundKey[(i * 4) + 2] = Key[(i * 4) + 2];
+    RoundKey[(i * 4) + 3] = Key[(i * 4) + 3];
+  }
+
+  /* All other round keys are found from the previous round keys. */
+  for (i = Nk; i < Nb * (Nr + 1); ++i) {
+    {
+      k = (i - 1) * 4;
+      tempa[0] = RoundKey[k + 0];
+      tempa[1] = RoundKey[k + 1];
+      tempa[2] = RoundKey[k + 2];
+      tempa[3] = RoundKey[k + 3];
+    }
+
+    if (i % Nk == 0) {
+      /* This function shifts the 4 bytes in a word to the left once.
+         [a0,a1,a2,a3] becomes [a1,a2,a3,a0] */
+
+      /* Function RotWord() */
+      {
+        const __u8 u8tmp = tempa[0];
+        tempa[0] = tempa[1];
+        tempa[1] = tempa[2];
+        tempa[2] = tempa[3];
+        tempa[3] = u8tmp;
+      }
+
+      /* SubWord() is a function that takes a four-byte input word and
+         applies the S-box to each of the four bytes to produce an
+         output word. */
+
+      /* Function Subword() */
+      {
+        tempa[0] = getSBoxValue(tempa[0]);
+        tempa[1] = getSBoxValue(tempa[1]);
+        tempa[2] = getSBoxValue(tempa[2]);
+        tempa[3] = getSBoxValue(tempa[3]);
+      }
+
+      tempa[0] = tempa[0] ^ Rcon[i / Nk];
+    }
+    j = i * 4;
+    k = (i - Nk) * 4;
+    RoundKey[j + 0] = RoundKey[k + 0] ^ tempa[0];
+    RoundKey[j + 1] = RoundKey[k + 1] ^ tempa[1];
+    RoundKey[j + 2] = RoundKey[k + 2] ^ tempa[2];
+    RoundKey[j + 3] = RoundKey[k + 3] ^ tempa[3];
+  }
+}
+
+static void AES_init_ctx(struct AES_ctx *ctx, const __u8 *key) {
+  KeyExpansion(ctx->RoundKey, key);
+}
+
+/* This function adds the round key to state.  The round key is added
+   to the state by an XOR function. */
+static void AddRoundKey(__u8 round, state_t *state, const __u8 *RoundKey) {
+  __u8 i, j;
+  for (i = 0; i < 4; ++i) {
+    for (j = 0; j < 4; ++j) {
+      (*state)[i][j] ^= RoundKey[(round * Nb * 4) + (i * Nb) + j];
+    }
+  }
+}
+
+static __u8 xtime(__u8 x) { return ((x << 1) ^ (((x >> 7) & 1) * 0x1b)); }
+
+#define Multiply(x, y)                                                         \
+  (((y & 1) * x) ^ ((y >> 1 & 1) * xtime(x)) ^                                 \
+   ((y >> 2 & 1) * xtime(xtime(x))) ^                                          \
+   ((y >> 3 & 1) * xtime(xtime(xtime(x)))) ^                                   \
+   ((y >> 4 & 1) * xtime(xtime(xtime(xtime(x))))))
+
+#define getSBoxInvert(num) (rsbox[(num)])
+
+/* MixColumns function mixes the columns of the state matrix.  The
+   method used to multiply may be difficult to understand for the
+   inexperienced. Please use the references to gain more
+   information. */
+static void InvMixColumns(state_t *state) {
+  int i;
+  __u8 a, b, c, d;
+  for (i = 0; i < 4; ++i) {
+    a = (*state)[i][0];
+    b = (*state)[i][1];
+    c = (*state)[i][2];
+    d = (*state)[i][3];
+
+    (*state)[i][0] = Multiply(a, 0x0e) ^ Multiply(b, 0x0b) ^ Multiply(c, 0x0d) ^
+                     Multiply(d, 0x09);
+    (*state)[i][1] = Multiply(a, 0x09) ^ Multiply(b, 0x0e) ^ Multiply(c, 0x0b) ^
+                     Multiply(d, 0x0d);
+    (*state)[i][2] = Multiply(a, 0x0d) ^ Multiply(b, 0x09) ^ Multiply(c, 0x0e) ^
+                     Multiply(d, 0x0b);
+    (*state)[i][3] = Multiply(a, 0x0b) ^ Multiply(b, 0x0d) ^ Multiply(c, 0x09) ^
+                     Multiply(d, 0x0e);
+  }
+}
+
+extern __u32 LINUX_KERNEL_VERSION __kconfig;
+
+/* The SubBytes Function Substitutes the values in the state matrix
+   with values in an S-box. */
+static void InvSubBytes(state_t *state) {
+  __u8 i, j;
+  if (LINUX_KERNEL_VERSION < KERNEL_VERSION(5, 10, 0)) {
+    for (i = 0; i < 4; ++i) {
+      for (j = 0; j < 4; ++j) {
+        /* Ubuntu 20.04 LTS kernel 5.4.0 needs this workaround
+           otherwise "math between map_value pointer and register with
+           unbounded min value is not allowed".  5.10.0 is a kernel
+           version that works but it might not be the minimum
+           version.  */
+        __u8 k = (*state)[j][i];
+        (*state)[j][i] = k ? getSBoxInvert(k) : getSBoxInvert(0);
+      }
+    }
+  } else {
+    for (i = 0; i < 4; ++i) {
+      for (j = 0; j < 4; ++j) {
+        (*state)[j][i] = getSBoxInvert((*state)[j][i]);
+      }
+    }
+  }
+}
+
+static void InvShiftRows(state_t *state) {
+  __u8 temp;
+
+  /* Rotate first row 1 columns to right */
+  temp = (*state)[3][1];
+  (*state)[3][1] = (*state)[2][1];
+  (*state)[2][1] = (*state)[1][1];
+  (*state)[1][1] = (*state)[0][1];
+  (*state)[0][1] = temp;
+
+  /* Rotate second row 2 columns to right */
+  temp = (*state)[0][2];
+  (*state)[0][2] = (*state)[2][2];
+  (*state)[2][2] = temp;
+
+  temp = (*state)[1][2];
+  (*state)[1][2] = (*state)[3][2];
+  (*state)[3][2] = temp;
+
+  /* Rotate third row 3 columns to right */
+  temp = (*state)[0][3];
+  (*state)[0][3] = (*state)[1][3];
+  (*state)[1][3] = (*state)[2][3];
+  (*state)[2][3] = (*state)[3][3];
+  (*state)[3][3] = temp;
+}
+
+static void InvCipher(state_t *state, const __u8 *RoundKey) {
+  /* Add the First round key to the state before starting the
+     rounds. */
+  AddRoundKey(Nr, state, RoundKey);
+
+  /* There will be Nr rounds.  The first Nr-1 rounds are identical.
+     These Nr rounds are executed in the loop below.  Last one without
+     InvMixColumn() */
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 1, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 2, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 3, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 4, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 5, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 6, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 7, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 8, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 9, state, RoundKey);
+  InvMixColumns(state);
+
+  InvShiftRows(state);
+  InvSubBytes(state);
+  AddRoundKey(Nr - 10, state, RoundKey);
+}
+
+static void AES_ECB_decrypt(const struct AES_ctx *ctx, __u8 *buf) {
+  /* The next function call decrypts the PlainText with the Key using
+     AES algorithm. */
+  InvCipher((state_t *)buf, ctx->RoundKey);
+}
+
+/* rol32: From linux kernel source code */
+
+/**
+ * rol32 - rotate a 32-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u32 rol32(__u32 word, unsigned int shift) {
+  return (word << shift) | (word >> ((-shift) & 31));
+}
+
+/* jhash.h: Jenkins hash support.
+ *
+ * Copyright (C) 2006. Bob Jenkins (bob_jenkins@burtleburtle.net)
+ *
+ * https://burtleburtle.net/bob/hash/
+ *
+ * These are the credits from Bob's sources:
+ *
+ * lookup3.c, by Bob Jenkins, May 2006, Public Domain.
+ *
+ * These are functions for producing 32-bit hashes for hash table lookup.
+ * hashword(), hashlittle(), hashlittle2(), hashbig(), mix(), and final()
+ * are externally useful functions.  Routines to test the hash are included
+ * if SELF_TEST is defined.  You can use this free for any purpose.  It's in
+ * the public domain.  It has no warranty.
+ *
+ * Copyright (C) 2009-2010 Jozsef Kadlecsik (kadlec@blackhole.kfki.hu)
+ *
+ * I've modified Bob's hash to be useful in the Linux kernel, and
+ * any bugs present are my fault.
+ * Jozsef
+ */
+
+/* __jhash_final - final mixing of 3 32-bit values (a,b,c) into c */
+#define __jhash_final(a, b, c)                                                 \
+  {                                                                            \
+    c ^= b;                                                                    \
+    c -= rol32(b, 14);                                                         \
+    a ^= c;                                                                    \
+    a -= rol32(c, 11);                                                         \
+    b ^= a;                                                                    \
+    b -= rol32(a, 25);                                                         \
+    c ^= b;                                                                    \
+    c -= rol32(b, 16);                                                         \
+    a ^= c;                                                                    \
+    a -= rol32(c, 4);                                                          \
+    b ^= a;                                                                    \
+    b -= rol32(a, 14);                                                         \
+    c ^= b;                                                                    \
+    c -= rol32(b, 24);                                                         \
+  }
+
+/* __jhash_nwords - hash exactly 3, 2 or 1 word(s) */
+static inline __u32 __jhash_nwords(__u32 a, __u32 b, __u32 c, __u32 initval) {
+  a += initval;
+  b += initval;
+  c += initval;
+
+  __jhash_final(a, b, c);
+
+  return c;
+}
+
+/* An arbitrary initial parameter */
+#define JHASH_INITVAL 0xdeadbeef
+
+static inline __u32 jhash_2words(__u32 a, __u32 b, __u32 initval) {
+  return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2));
+}
+
+struct {
+  __uint(type, BPF_MAP_TYPE_HASH);
+  __uint(max_entries, 255);
+  __type(key, __u64);
+  __type(value, __u32);
+} cid_prefix_map SEC(".maps");
+
+struct {
+  __uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+  __uint(max_entries, 255);
+  __type(key, __u32);
+  __type(value, __u32);
+} reuseport_array SEC(".maps");
+
+struct {
+  __uint(type, BPF_MAP_TYPE_ARRAY);
+  __uint(max_entries, 3);
+  __type(key, __u32);
+  __type(value, __u64);
+} sk_info SEC(".maps");
+
+typedef struct quic_hd {
+  __u8 *dcid;
+  __u32 dcidlen;
+  __u32 dcid_offset;
+  __u8 type;
+} quic_hd;
+
+#define SV_DCIDLEN 20
+#define MAX_DCIDLEN 20
+#define MIN_DCIDLEN 8
+#define CID_PREFIXLEN 8
+#define CID_PREFIX_OFFSET 1
+
+enum {
+  NGTCP2_PKT_INITIAL = 0x0,
+  NGTCP2_PKT_0RTT = 0x1,
+  NGTCP2_PKT_HANDSHAKE = 0x2,
+  NGTCP2_PKT_SHORT = 0x40,
+};
+
+static inline int parse_quic(quic_hd *qhd, __u8 *data, __u8 *data_end) {
+  __u8 *p;
+  __u64 dcidlen;
+
+  if (*data & 0x80) {
+    p = data + 1 + 4;
+
+    /* Do not check the actual DCID length because we might not buffer
+       entire DCID here. */
+    dcidlen = *p;
+
+    if (dcidlen > MAX_DCIDLEN || dcidlen < MIN_DCIDLEN) {
+      return -1;
+    }
+
+    ++p;
+
+    qhd->type = (*data & 0x30) >> 4;
+    qhd->dcid = p;
+    qhd->dcidlen = dcidlen;
+    qhd->dcid_offset = 6;
+  } else {
+    qhd->type = NGTCP2_PKT_SHORT;
+    qhd->dcid = data + 1;
+    qhd->dcidlen = SV_DCIDLEN;
+    qhd->dcid_offset = 1;
+  }
+
+  return 0;
+}
+
+static __u32 hash(const __u8 *data, __u32 datalen, __u32 initval) {
+  __u32 a, b;
+
+  a = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
+  b = (data[4] << 24) | (data[5] << 16) | (data[6] << 8) | data[7];
+
+  return jhash_2words(a, b, initval);
+}
+
+static __u32 sk_index_from_dcid(const quic_hd *qhd,
+                                const struct sk_reuseport_md *reuse_md,
+                                __u64 num_socks) {
+  __u32 len = qhd->dcidlen;
+  __u32 h = reuse_md->hash;
+  __u8 hbuf[8];
+
+  if (len > 16) {
+    __builtin_memset(hbuf, 0, sizeof(hbuf));
+
+    switch (len) {
+    case 20:
+      __builtin_memcpy(hbuf, qhd->dcid + 16, 4);
+      break;
+    case 19:
+      __builtin_memcpy(hbuf, qhd->dcid + 16, 3);
+      break;
+    case 18:
+      __builtin_memcpy(hbuf, qhd->dcid + 16, 2);
+      break;
+    case 17:
+      __builtin_memcpy(hbuf, qhd->dcid + 16, 1);
+      break;
+    }
+
+    h = hash(hbuf, sizeof(hbuf), h);
+    len = 16;
+  }
+
+  if (len > 8) {
+    __builtin_memset(hbuf, 0, sizeof(hbuf));
+
+    switch (len) {
+    case 16:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 8);
+      break;
+    case 15:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 7);
+      break;
+    case 14:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 6);
+      break;
+    case 13:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 5);
+      break;
+    case 12:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 4);
+      break;
+    case 11:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 3);
+      break;
+    case 10:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 2);
+      break;
+    case 9:
+      __builtin_memcpy(hbuf, qhd->dcid + 8, 1);
+      break;
+    }
+
+    h = hash(hbuf, sizeof(hbuf), h);
+    len = 8;
+  }
+
+  return hash(qhd->dcid, len, h) % num_socks;
+}
+
+SEC("sk_reuseport")
+int select_reuseport(struct sk_reuseport_md *reuse_md) {
+  __u32 sk_index, *psk_index;
+  __u64 *pnum_socks, *pkey;
+  __u32 zero = 0, key_high_idx = 1, key_low_idx = 2;
+  int rv;
+  quic_hd qhd;
+  __u8 qpktbuf[6 + MAX_DCIDLEN];
+  struct AES_ctx aes_ctx;
+  __u8 key[AES_KEYLEN];
+  __u8 *cid_prefix;
+
+  if (bpf_skb_load_bytes(reuse_md, sizeof(struct udphdr), qpktbuf,
+                         sizeof(qpktbuf)) != 0) {
+    return SK_DROP;
+  }
+
+  pnum_socks = bpf_map_lookup_elem(&sk_info, &zero);
+  if (pnum_socks == NULL) {
+    return SK_DROP;
+  }
+
+  pkey = bpf_map_lookup_elem(&sk_info, &key_high_idx);
+  if (pkey == NULL) {
+    return SK_DROP;
+  }
+
+  __builtin_memcpy(key, pkey, sizeof(*pkey));
+
+  pkey = bpf_map_lookup_elem(&sk_info, &key_low_idx);
+  if (pkey == NULL) {
+    return SK_DROP;
+  }
+
+  __builtin_memcpy(key + sizeof(*pkey), pkey, sizeof(*pkey));
+
+  rv = parse_quic(&qhd, qpktbuf, qpktbuf + sizeof(qpktbuf));
+  if (rv != 0) {
+    return SK_DROP;
+  }
+
+  AES_init_ctx(&aes_ctx, key);
+
+  switch (qhd.type) {
+  case NGTCP2_PKT_INITIAL:
+  case NGTCP2_PKT_0RTT:
+    if (qhd.dcidlen == SV_DCIDLEN) {
+      cid_prefix = qhd.dcid + CID_PREFIX_OFFSET;
+      AES_ECB_decrypt(&aes_ctx, cid_prefix);
+
+      psk_index = bpf_map_lookup_elem(&cid_prefix_map, cid_prefix);
+      if (psk_index != NULL) {
+        sk_index = *psk_index;
+
+        break;
+      }
+    }
+
+    sk_index = sk_index_from_dcid(&qhd, reuse_md, *pnum_socks);
+
+    break;
+  case NGTCP2_PKT_HANDSHAKE:
+  case NGTCP2_PKT_SHORT:
+    if (qhd.dcidlen != SV_DCIDLEN) {
+      return SK_DROP;
+    }
+
+    cid_prefix = qhd.dcid + CID_PREFIX_OFFSET;
+    AES_ECB_decrypt(&aes_ctx, cid_prefix);
+
+    psk_index = bpf_map_lookup_elem(&cid_prefix_map, cid_prefix);
+    if (psk_index == NULL) {
+      sk_index = sk_index_from_dcid(&qhd, reuse_md, *pnum_socks);
+
+      break;
+    }
+
+    sk_index = *psk_index;
+
+    break;
+  default:
+    return SK_DROP;
+  }
+
+  rv = bpf_sk_select_reuseport(reuse_md, &reuseport_array, &sk_index, 0);
+  if (rv != 0) {
+    return SK_DROP;
+  }
+
+  return SK_PASS;
+}

cmake/FindCython.cmake

@@ -1,44 +0,0 @@
-# Find the Cython compiler.
-#
-# This code sets the following variables:
-#
-#  CYTHON_EXECUTABLE
-#
-# See also UseCython.cmake
-
-#=============================================================================
-# Copyright 2011 Kitware, Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#=============================================================================
-
-# Use the Cython executable that lives next to the Python executable
-# if it is a local installation.
-find_package( PythonInterp )
-if( PYTHONINTERP_FOUND )
-  get_filename_component( _python_path ${PYTHON_EXECUTABLE} PATH )
-  find_program( CYTHON_EXECUTABLE
-    NAMES cython cython.bat cython3
-    HINTS ${_python_path}
-    )
-else()
-  find_program( CYTHON_EXECUTABLE
-    NAMES cython cython.bat cython3
-    )
-endif()
-
-
-include( FindPackageHandleStandardArgs )
-FIND_PACKAGE_HANDLE_STANDARD_ARGS( Cython REQUIRED_VARS CYTHON_EXECUTABLE )
-
-mark_as_advanced( CYTHON_EXECUTABLE )

cmake/FindLibbpf.cmake

@@ -0,0 +1,32 @@
+# - Try to find libbpf
+# Once done this will define
+#  LIBBPF_FOUND        - System has libbpf
+#  LIBBPF_INCLUDE_DIRS - The libbpf include directories
+#  LIBBPF_LIBRARIES    - The libraries needed to use libbpf
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBBPF QUIET libbpf)
+
+find_path(LIBBPF_INCLUDE_DIR
+  NAMES bpf/bpf.h
+  HINTS ${PC_LIBBPF_INCLUDE_DIRS}
+)
+find_library(LIBBPF_LIBRARY
+  NAMES bpf
+  HINTS ${PC_LIBBPF_LIBRARY_DIRS}
+)
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LIBBPF_FOUND
+# to TRUE if all listed variables are TRUE and the requested version
+# matches.
+find_package_handle_standard_args(Libbpf REQUIRED_VARS
+                                  LIBBPF_LIBRARY LIBBPF_INCLUDE_DIR
+                                  VERSION_VAR LIBBPF_VERSION)
+
+if(LIBBPF_FOUND)
+  set(LIBBPF_LIBRARIES     ${LIBBPF_LIBRARY})
+  set(LIBBPF_INCLUDE_DIRS  ${LIBBPF_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBBPF_INCLUDE_DIR LIBBPF_LIBRARY)

cmake/FindLibcares.cmake

@@ -0,0 +1,40 @@
+# - Try to find libcares
+# Once done this will define
+#  LIBCARES_FOUND        - System has libcares
+#  LIBCARES_INCLUDE_DIRS - The libcares include directories
+#  LIBCARES_LIBRARIES    - The libraries needed to use libcares
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBCARES QUIET libcares)
+
+find_path(LIBCARES_INCLUDE_DIR
+  NAMES ares.h
+  HINTS ${PC_LIBCARES_INCLUDE_DIRS}
+)
+find_library(LIBCARES_LIBRARY
+  NAMES cares
+  HINTS ${PC_LIBCARES_LIBRARY_DIRS}
+)
+
+if(LIBCARES_INCLUDE_DIR)
+  set(_version_regex "^#define[ \t]+ARES_VERSION_STR[ \t]+\"([^\"]+)\".*")
+  file(STRINGS "${LIBCARES_INCLUDE_DIR}/ares_version.h"
+    LIBCARES_VERSION REGEX "${_version_regex}")
+  string(REGEX REPLACE "${_version_regex}" "\\1"
+    LIBCARES_VERSION "${LIBCARES_VERSION}")
+  unset(_version_regex)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LIBCARES_FOUND to TRUE
+# if all listed variables are TRUE and the requested version matches.
+find_package_handle_standard_args(Libcares REQUIRED_VARS
+                                  LIBCARES_LIBRARY LIBCARES_INCLUDE_DIR
+                                  VERSION_VAR LIBCARES_VERSION)
+
+if(LIBCARES_FOUND)
+  set(LIBCARES_LIBRARIES     ${LIBCARES_LIBRARY})
+  set(LIBCARES_INCLUDE_DIRS  ${LIBCARES_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBCARES_INCLUDE_DIR LIBCARES_LIBRARY)

cmake/FindLibevent.cmake

@@ -40,6 +40,9 @@ if(LIBEVENT_INCLUDE_DIR)
     # Libevent 2.0
     file(STRINGS "${LIBEVENT_INCLUDE_DIR}/event2/event-config.h"
       LIBEVENT_VERSION REGEX "${_version_regex}")
+    if("${LIBEVENT_VERSION}" STREQUAL "")
+      set(LIBEVENT_VERSION ${PC_LIBEVENT_VERSION})
+    endif()
   else()
     # Libevent 1.4
     file(STRINGS "${LIBEVENT_INCLUDE_DIR}/event-config.h"

cmake/FindLibnghttp3.cmake

@@ -0,0 +1,41 @@
+# - Try to find libnghttp3
+# Once done this will define
+#  LIBNGHTTP3_FOUND        - System has libnghttp3
+#  LIBNGHTTP3_INCLUDE_DIRS - The libnghttp3 include directories
+#  LIBNGHTTP3_LIBRARIES    - The libraries needed to use libnghttp3
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBNGHTTP3 QUIET libnghttp3)
+
+find_path(LIBNGHTTP3_INCLUDE_DIR
+  NAMES nghttp3/nghttp3.h
+  HINTS ${PC_LIBNGHTTP3_INCLUDE_DIRS}
+)
+find_library(LIBNGHTTP3_LIBRARY
+  NAMES nghttp3
+  HINTS ${PC_LIBNGHTTP3_LIBRARY_DIRS}
+)
+
+if(LIBNGHTTP3_INCLUDE_DIR)
+  set(_version_regex "^#define[ \t]+NGHTTP3_VERSION[ \t]+\"([^\"]+)\".*")
+  file(STRINGS "${LIBNGHTTP3_INCLUDE_DIR}/nghttp3/version.h"
+    LIBNGHTTP3_VERSION REGEX "${_version_regex}")
+  string(REGEX REPLACE "${_version_regex}" "\\1"
+    LIBNGHTTP3_VERSION "${LIBNGHTTP3_VERSION}")
+  unset(_version_regex)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LIBNGHTTP3_FOUND
+# to TRUE if all listed variables are TRUE and the requested version
+# matches.
+find_package_handle_standard_args(Libnghttp3 REQUIRED_VARS
+                                  LIBNGHTTP3_LIBRARY LIBNGHTTP3_INCLUDE_DIR
+                                  VERSION_VAR LIBNGHTTP3_VERSION)
+
+if(LIBNGHTTP3_FOUND)
+  set(LIBNGHTTP3_LIBRARIES     ${LIBNGHTTP3_LIBRARY})
+  set(LIBNGHTTP3_INCLUDE_DIRS  ${LIBNGHTTP3_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBNGHTTP3_INCLUDE_DIR LIBNGHTTP3_LIBRARY)

cmake/FindLibngtcp2.cmake

@@ -0,0 +1,41 @@
+# - Try to find libngtcp2
+# Once done this will define
+#  LIBNGTCP2_FOUND        - System has libngtcp2
+#  LIBNGTCP2_INCLUDE_DIRS - The libngtcp2 include directories
+#  LIBNGTCP2_LIBRARIES    - The libraries needed to use libngtcp2
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBNGTCP2 QUIET libngtcp2)
+
+find_path(LIBNGTCP2_INCLUDE_DIR
+  NAMES ngtcp2/ngtcp2.h
+  HINTS ${PC_LIBNGTCP2_INCLUDE_DIRS}
+)
+find_library(LIBNGTCP2_LIBRARY
+  NAMES ngtcp2
+  HINTS ${PC_LIBNGTCP2_LIBRARY_DIRS}
+)
+
+if(LIBNGTCP2_INCLUDE_DIR)
+  set(_version_regex "^#define[ \t]+NGTCP2_VERSION[ \t]+\"([^\"]+)\".*")
+  file(STRINGS "${LIBNGTCP2_INCLUDE_DIR}/ngtcp2/version.h"
+    LIBNGTCP2_VERSION REGEX "${_version_regex}")
+  string(REGEX REPLACE "${_version_regex}" "\\1"
+    LIBNGTCP2_VERSION "${LIBNGTCP2_VERSION}")
+  unset(_version_regex)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LIBNGTCP2_FOUND
+# to TRUE if all listed variables are TRUE and the requested version
+# matches.
+find_package_handle_standard_args(Libngtcp2 REQUIRED_VARS
+                                  LIBNGTCP2_LIBRARY LIBNGTCP2_INCLUDE_DIR
+                                  VERSION_VAR LIBNGTCP2_VERSION)
+
+if(LIBNGTCP2_FOUND)
+  set(LIBNGTCP2_LIBRARIES     ${LIBNGTCP2_LIBRARY})
+  set(LIBNGTCP2_INCLUDE_DIRS  ${LIBNGTCP2_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBNGTCP2_INCLUDE_DIR LIBNGTCP2_LIBRARY)

cmake/FindLibngtcp2_crypto_openssl.cmake

@@ -0,0 +1,43 @@
+# - Try to find libngtcp2_crypto_openssl
+# Once done this will define
+#  LIBNGTCP2_CRYPTO_OPENSSL_FOUND        - System has libngtcp2_crypto_openssl
+#  LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIRS - The libngtcp2_crypto_openssl include directories
+#  LIBNGTCP2_CRYPTO_OPENSSL_LIBRARIES    - The libraries needed to use libngtcp2_crypto_openssl
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBNGTCP2_CRYPTO_OPENSSL QUIET libngtcp2_crypto_openssl)
+
+find_path(LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIR
+  NAMES ngtcp2/ngtcp2_crypto_openssl.h
+  HINTS ${PC_LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIRS}
+)
+find_library(LIBNGTCP2_CRYPTO_OPENSSL_LIBRARY
+  NAMES ngtcp2_crypto_openssl
+  HINTS ${PC_LIBNGTCP2_CRYPTO_OPENSSL_LIBRARY_DIRS}
+)
+
+if(LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIR)
+  set(_version_regex "^#define[ \t]+NGTCP2_VERSION[ \t]+\"([^\"]+)\".*")
+  file(STRINGS "${LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIR}/ngtcp2/version.h"
+    LIBNGTCP2_CRYPTO_OPENSSL_VERSION REGEX "${_version_regex}")
+  string(REGEX REPLACE "${_version_regex}" "\\1"
+    LIBNGTCP2_CRYPTO_OPENSSL_VERSION "${LIBNGTCP2_CRYPTO_OPENSSL_VERSION}")
+  unset(_version_regex)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set
+# LIBNGTCP2_CRYPTO_OPENSSL_FOUND to TRUE if all listed variables are
+# TRUE and the requested version matches.
+find_package_handle_standard_args(Libngtcp2_crypto_openssl REQUIRED_VARS
+                                  LIBNGTCP2_CRYPTO_OPENSSL_LIBRARY
+                                  LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIR
+                                  VERSION_VAR LIBNGTCP2_CRYPTO_OPENSSL_VERSION)
+
+if(LIBNGTCP2_CRYPTO_OPENSSL_FOUND)
+  set(LIBNGTCP2_CRYPTO_OPENSSL_LIBRARIES ${LIBNGTCP2_CRYPTO_OPENSSL_LIBRARY})
+  set(LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIRS ${LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBNGTCP2_CRYPTO_OPENSSL_INCLUDE_DIR
+                 LIBNGTCP2_CRYPTO_OPENSSL_LIBRARY)

cmake/FindSpdylay.cmake

@@ -1,40 +0,0 @@
-# - Try to find spdylay
-# Once done this will define
-#  SPDYLAY_FOUND        - System has spdylay
-#  SPDYLAY_INCLUDE_DIRS - The spdylay include directories
-#  SPDYLAY_LIBRARIES    - The libraries needed to use spdylay
-
-find_package(PkgConfig QUIET)
-pkg_check_modules(PC_SPDYLAY QUIET libspdylay)
-
-find_path(SPDYLAY_INCLUDE_DIR
-  NAMES spdylay/spdylay.h
-  HINTS ${PC_SPDYLAY_INCLUDE_DIRS}
-)
-find_library(SPDYLAY_LIBRARY
-  NAMES spdylay
-  HINTS ${PC_SPDYLAY_LIBRARY_DIRS}
-)
-
-if(SPDYLAY_INCLUDE_DIR)
-  set(_version_regex "^#define[ \t]+SPDYLAY_VERSION[ \t]+\"([^\"]+)\".*")
-  file(STRINGS "${SPDYLAY_INCLUDE_DIR}/spdylay/spdylayver.h"
-    SPDYLAY_VERSION REGEX "${_version_regex}")
-  string(REGEX REPLACE "${_version_regex}" "\\1"
-    SPDYLAY_VERSION "${SPDYLAY_VERSION}")
-  unset(_version_regex)
-endif()
-
-include(FindPackageHandleStandardArgs)
-# handle the QUIETLY and REQUIRED arguments and set SPDYLAY_FOUND to TRUE
-# if all listed variables are TRUE and the requested version matches.
-find_package_handle_standard_args(Spdylay REQUIRED_VARS
-                                  SPDYLAY_LIBRARY SPDYLAY_INCLUDE_DIR
-                                  VERSION_VAR SPDYLAY_VERSION)
-
-if(SPDYLAY_FOUND)
-  set(SPDYLAY_LIBRARIES     ${SPDYLAY_LIBRARY})
-  set(SPDYLAY_INCLUDE_DIRS  ${SPDYLAY_INCLUDE_DIR})
-endif()
-
-mark_as_advanced(SPDYLAY_INCLUDE_DIR SPDYLAY_LIBRARY)

cmake/FindSystemd.cmake

@@ -0,0 +1,19 @@
+# - Try to find systemd
+# Once done this will define
+#  SYSTEMD_FOUND        - System has systemd
+#  SYSTEMD_INCLUDE_DIRS - The systemd include directories
+#  SYSTEMD_LIBRARIES    - The libraries needed to use systemd
+
+include(FeatureSummary)
+set_package_properties(Systemd PROPERTIES
+        URL "http://freedesktop.org/wiki/Software/systemd/"
+        DESCRIPTION "System and Service Manager")
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_SYSTEMD QUIET libsystemd)
+find_library(SYSTEMD_LIBRARIES NAMES systemd ${PC_SYSTEMD_LIBRARY_DIRS})
+find_path(SYSTEMD_INCLUDE_DIRS systemd/sd-login.h HINTS ${PC_SYSTEMD_INCLUDE_DIRS})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Systemd DEFAULT_MSG SYSTEMD_INCLUDE_DIRS SYSTEMD_LIBRARIES)
+mark_as_advanced(SYSTEMD_INCLUDE_DIRS SYSTEMD_LIBRARIES)

cmakeconfig.h.in

@@ -1,7 +1,3 @@
-
-/* Hint to the compiler that a function parameter is not used  */
-#define _U_ @HINT_UNUSED_PARAM@
-
 /* Hint to the compiler that a function never returns */
 #define NGHTTP2_NORETURN @HINT_NORETURN@
 
@@ -17,9 +13,6 @@
 /* Define to 1 if you have `libxml2` library. */
 #cmakedefine HAVE_LIBXML2 1
 
-/* Define to 1 if you have `spdylay` library. */
-#cmakedefine HAVE_SPDYLAY 1
-
 /* Define to 1 if you have `mruby` library. */
 #cmakedefine HAVE_MRUBY 1
 
@@ -38,6 +31,9 @@
 /* Define to 1 if you have the `accept4` function. */
 #cmakedefine HAVE_ACCEPT4 1
 
+/* Define to 1 if you have the `mkostemp` function. */
+#cmakedefine HAVE_MKOSTEMP 1
+
 /* Define to 1 if you have the `initgroups` function. */
 #cmakedefine01 HAVE_DECL_INITGROUPS
 
@@ -82,3 +78,15 @@
 
 /* Define to 1 if you have the <unistd.h> header file. */
 #cmakedefine HAVE_UNISTD_H 1
+
+/* Define to 1 if HTTP/3 is enabled. */
+#cmakedefine ENABLE_HTTP3 1
+
+/* Define to 1 if you have `libbpf` library. */
+#cmakedefine HAVE_LIBBPF 1
+
+/* Define to 1 if you have enum bpf_stats_type in linux/bpf.h. */
+#cmakedefine HAVE_BPF_STATS_TYPE 1
+
+/* Define to 1 if you have `libngtcp2_crypto_openssl` library. */
+#cmakedefine HAVE_LIBNGTCP2_CRYPTO_OPENSSL

configure.ac

@@ -22,10 +22,10 @@ dnl OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 dnl WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 dnl Do not change user variables!
-dnl http://www.gnu.org/software/automake/manual/html_node/Flag-Variables-Ordering.html
+dnl https://www.gnu.org/software/automake/manual/html_node/Flag-Variables-Ordering.html
 
 AC_PREREQ(2.61)
-AC_INIT([nghttp2], [1.16.0], [t-tujikawa@users.sourceforge.net])
+AC_INIT([nghttp2], [1.52.0-DEV], [t-tujikawa@users.sourceforge.net])
 AC_CONFIG_AUX_DIR([.])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADERS([config.h])
@@ -43,10 +43,10 @@ AM_INIT_AUTOMAKE([subdir-objects])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 dnl See versioning rule:
-dnl  http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-AC_SUBST(LT_CURRENT, 26)
-AC_SUBST(LT_REVISION, 0)
-AC_SUBST(LT_AGE, 12)
+dnl  https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
+AC_SUBST(LT_CURRENT, 38)
+AC_SUBST(LT_REVISION, 1)
+AC_SUBST(LT_AGE, 24)
 
 major=`echo $PACKAGE_VERSION |cut -d. -f1 | sed -e "s/[^0-9]//g"`
 minor=`echo $PACKAGE_VERSION |cut -d. -f2 | sed -e "s/[^0-9]//g"`
@@ -82,21 +82,11 @@ AC_ARG_ENABLE([hpack-tools],
                     [Build HPACK tools [default=check]])],
     [request_hpack_tools=$enableval], [request_hpack_tools=check])
 
-AC_ARG_ENABLE([asio-lib],
-    [AS_HELP_STRING([--enable-asio-lib],
-                    [Build C++ libnghttp2_asio library [default=no]])],
-    [request_asio_lib=$enableval], [request_asio_lib=no])
-
 AC_ARG_ENABLE([examples],
     [AS_HELP_STRING([--enable-examples],
                     [Build examples [default=check]])],
     [request_examples=$enableval], [request_examples=check])
 
-AC_ARG_ENABLE([python-bindings],
-    [AS_HELP_STRING([--enable-python-bindings],
-                    [Build Python bindings [default=check]])],
-    [request_python_bindings=$enableval], [request_python_bindings=check])
-
 AC_ARG_ENABLE([failmalloc],
     [AS_HELP_STRING([--disable-failmalloc],
                     [Do not build failmalloc test program])],
@@ -104,23 +94,63 @@ AC_ARG_ENABLE([failmalloc],
 
 AC_ARG_ENABLE([lib-only],
     [AS_HELP_STRING([--enable-lib-only],
-                    [Build libnghttp2 only.  This is a short hand for --disable-app --disable-examples --disable-hpack-tools --disable-python-bindings])],
+                    [Build libnghttp2 only.  This is a short hand for --disable-app --disable-examples --disable-hpack-tools])],
     [request_lib_only=$enableval], [request_lib_only=no])
 
+AC_ARG_ENABLE([http3],
+    [AS_HELP_STRING([--enable-http3],
+                    [(EXPERIMENTAL) Enable HTTP/3.  This requires ngtcp2, nghttp3, and a custom OpenSSL.])],
+    [request_http3=$enableval], [request_http3=no])
+
 AC_ARG_WITH([libxml2],
     [AS_HELP_STRING([--with-libxml2],
                     [Use libxml2 [default=check]])],
     [request_libxml2=$withval], [request_libxml2=check])
 
+AC_ARG_WITH([jansson],
+    [AS_HELP_STRING([--with-jansson],
+                    [Use jansson [default=check]])],
+    [request_jansson=$withval], [request_jansson=check])
+
+AC_ARG_WITH([zlib],
+    [AS_HELP_STRING([--with-zlib],
+                    [Use zlib [default=check]])],
+    [request_zlib=$withval], [request_zlib=check])
+
+AC_ARG_WITH([libevent-openssl],
+    [AS_HELP_STRING([--with-libevent-openssl],
+                    [Use libevent_openssl [default=check]])],
+    [request_libevent_openssl=$withval], [request_libevent_openssl=check])
+
+AC_ARG_WITH([libcares],
+    [AS_HELP_STRING([--with-libcares],
+                    [Use libc-ares [default=check]])],
+    [request_libcares=$withval], [request_libcares=check])
+
+AC_ARG_WITH([openssl],
+    [AS_HELP_STRING([--with-openssl],
+                    [Use openssl [default=check]])],
+    [request_openssl=$withval], [request_openssl=check])
+
+AC_ARG_WITH([libev],
+    [AS_HELP_STRING([--with-libev],
+                    [Use libev [default=check]])],
+    [request_libev=$withval], [request_libev=check])
+
+AC_ARG_WITH([cunit],
+    [AS_HELP_STRING([--with-cunit],
+                    [Use cunit [default=check]])],
+    [request_cunit=$withval], [request_cunit=check])
+
 AC_ARG_WITH([jemalloc],
     [AS_HELP_STRING([--with-jemalloc],
                     [Use jemalloc [default=check]])],
     [request_jemalloc=$withval], [request_jemalloc=check])
 
-AC_ARG_WITH([spdylay],
-    [AS_HELP_STRING([--with-spdylay],
-                    [Use spdylay [default=check]])],
-    [request_spdylay=$withval], [request_spdylay=check])
+AC_ARG_WITH([systemd],
+    [AS_HELP_STRING([--with-systemd],
+                    [Enable systemd support in nghttpx [default=check]])],
+    [request_systemd=$withval], [request_systemd=check])
 
 AC_ARG_WITH([mruby],
     [AS_HELP_STRING([--with-mruby],
@@ -132,13 +162,33 @@ AC_ARG_WITH([neverbleed],
                     [Use neverbleed [default=no]])],
     [request_neverbleed=$withval], [request_neverbleed=no])
 
-AC_ARG_WITH([cython],
-    [AS_HELP_STRING([--with-cython=PATH],
-                    [Use cython in given PATH])],
-    [cython_path=$withval], [])
+AC_ARG_WITH([libngtcp2],
+    [AS_HELP_STRING([--with-libngtcp2],
+                    [Use libngtcp2 [default=check]])],
+    [request_libngtcp2=$withval], [request_libngtcp2=check])
+
+AC_ARG_WITH([libnghttp3],
+    [AS_HELP_STRING([--with-libnghttp3],
+                    [Use libnghttp3 [default=check]])],
+    [request_libnghttp3=$withval], [request_libnghttp3=check])
+
+AC_ARG_WITH([libbpf],
+    [AS_HELP_STRING([--with-libbpf],
+                    [Use libbpf [default=no]])],
+    [request_libbpf=$withval], [request_libbpf=no])
 
 dnl Define variables
-AC_ARG_VAR([CYTHON], [the Cython executable])
+AC_ARG_VAR([LIBEV_CFLAGS], [C compiler flags for libev, skipping any checks])
+AC_ARG_VAR([LIBEV_LIBS], [linker flags for libev, skipping any checks])
+
+AC_ARG_VAR([JEMALLOC_CFLAGS],
+           [C compiler flags for jemalloc, skipping any checks])
+AC_ARG_VAR([JEMALLOC_LIBS], [linker flags for jemalloc, skipping any checks])
+
+AC_ARG_VAR([LIBTOOL_LDFLAGS],
+           [libtool specific flags (e.g., -static-libtool-libs)])
+
+AC_ARG_VAR([BPFCFLAGS], [C compiler flags for bpf program])
 
 dnl Checks for programs
 AC_PROG_CC
@@ -151,46 +201,39 @@ AC_PROG_MKDIR_P
 
 PKG_PROG_PKG_CONFIG([0.20])
 
-AM_PATH_PYTHON([2.7],, [:])
+AM_PATH_PYTHON([3.8],, [:])
 
 if [test "x$request_lib_only" = "xyes"]; then
   request_app=no
   request_hpack_tools=no
   request_examples=no
-  request_python_bindings=no
+  request_http3=no
+  request_libxml2=no
+  request_jansson=no
+  request_zlib=no
+  request_libevent_openssl=no
+  request_libcares=no
+  request_openssl=no
+  request_libev=no
+  request_jemalloc=no
+  request_systemd=no
+  request_mruby=no
+  request_neverbleed=no
+  request_libngtcp2=no
+  request_libnghttp3=no
+  request_libbpf=no
 fi
 
-if [test "x$request_python_bindings" != "xno"]; then
-  AX_PYTHON_DEVEL([>= '2.7'])
-fi
-
-if test "x${cython_path}" = "x"; then
-  AC_CHECK_PROGS([CYTHON], [cython.py cython])
-else
-  CYTHON=${cython_path}
-  AC_SUBST([CYTHON])
-fi
-
-#
-# If we're running GCC or clang define _U_ to be "__attribute__((unused))"
-# so we can use _U_ to flag unused function parameters and not get warnings
-# about them. Otherwise, define _U_ to be an empty string so that _U_ used
-# to flag an unused function parameters will compile with other compilers.
-#
-# XXX - similar hints for other compilers?
-#
 if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then
-  AC_DEFINE([_U_], [__attribute__((unused))], [Hint to the compiler that a function parameters is not used])
   AC_DEFINE([NGHTTP2_NORETURN], [__attribute__((noreturn))], [Hint to the compiler that a function never return])
 else
-  AC_DEFINE([_U_], , [Hint to the compiler that a function parameter is not used])
   AC_DEFINE([NGHTTP2_NORETURN], , [Hint to the compiler that a function never return])
 fi
 
 save_CXXFLAGS="$CXXFLAGS"
 CXXFLAGS=
 
-AX_CXX_COMPILE_STDCXX_11([noext], [optional])
+AX_CXX_COMPILE_STDCXX([14], [noext], [optional])
 
 CXX1XCXXFLAGS="$CXXFLAGS"
 CXXFLAGS="$save_CXXFLAGS"
@@ -210,6 +253,7 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 ]],
 [[
 std::vector<std::future<int>> v;
+(void)v;
 ]])],
     [AC_DEFINE([HAVE_STD_FUTURE], [1],
                [Define to 1 if you have the `std::future`.])
@@ -284,8 +328,8 @@ APPLDFLAGS=
 case "$host_os" in
   *android*)
     android_build=yes
-    # android does not need -pthread, but needs followng 3 libs for C++
-    APPLDFLAGS="$APPLDFLAGS -lstdc++ -latomic -lsupc++"
+    # android does not need -pthread, but needs following 2 libs for C++
+    APPLDFLAGS="$APPLDFLAGS -lstdc++ -latomic"
     ;;
   *)
     PTHREAD_LDFLAGS="-pthread"
@@ -299,11 +343,26 @@ case "$host_os" in
     ;;
 esac
 
-# zlib
-PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3], [have_zlib=yes], [have_zlib=no])
+case "${build}" in
+  *-apple-darwin*)
+    EXTRA_DEFS="-D__APPLE_USE_RFC_3542"
+    AC_SUBST([EXTRA_DEFS])
+    ;;
+esac
 
-if test "x${have_zlib}" = "xno"; then
-  AC_MSG_NOTICE($ZLIB_PKG_ERRORS)
+# zlib
+have_zlib=no
+if test "x${request_zlib}" != "xno"; then
+  PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3], [have_zlib=yes], [have_zlib=no])
+
+  if test "x${have_zlib}" = "xno"; then
+    AC_MSG_NOTICE($ZLIB_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_zlib}" = "xyes" &&
+   test "x${have_zlib}" != "xyes"; then
+  AC_MSG_ERROR([zlib was requested (--with-zlib) but not found])
 fi
 
 # dl: openssl requires libdl when it is statically linked.
@@ -319,84 +378,309 @@ case "${host_os}" in
 esac
 
 # cunit
-PKG_CHECK_MODULES([CUNIT], [cunit >= 2.1], [have_cunit=yes], [have_cunit=no])
-# If pkg-config does not find cunit, check it using AC_CHECK_LIB.  We
-# do this because Debian (Ubuntu) lacks pkg-config file for cunit.
-if test "x${have_cunit}" = "xno"; then
-  AC_MSG_WARN([${CUNIT_PKG_ERRORS}])
-  AC_CHECK_LIB([cunit], [CU_initialize_registry],
-               [have_cunit=yes], [have_cunit=no])
+have_cunit=no
+if test "x${request_cunit}" != "xno"; then
+  PKG_CHECK_MODULES([CUNIT], [cunit >= 2.1], [have_cunit=yes], [have_cunit=no])
+  # If pkg-config does not find cunit, check it using AC_CHECK_LIB.  We
+  # do this because Debian (Ubuntu) lacks pkg-config file for cunit.
+  if test "x${have_cunit}" = "xno"; then
+    AC_MSG_WARN([${CUNIT_PKG_ERRORS}])
+    AC_CHECK_LIB([cunit], [CU_initialize_registry],
+                 [have_cunit=yes], [have_cunit=no])
+    if test "x${have_cunit}" = "xyes"; then
+      CUNIT_LIBS="-lcunit"
+      CUNIT_CFLAGS=""
+      AC_SUBST([CUNIT_LIBS])
+      AC_SUBST([CUNIT_CFLAGS])
+    fi
+  fi
   if test "x${have_cunit}" = "xyes"; then
-    CUNIT_LIBS="-lcunit"
-    CUNIT_CFLAGS=""
-    AC_SUBST([CUNIT_LIBS])
-    AC_SUBST([CUNIT_CFLAGS])
+    # cunit in Mac OS X requires ncurses. Note that in Mac OS X, test
+    # program can be built without -lncurses, but it emits runtime
+    # error.
+    case "${build}" in
+      *-apple-darwin*)
+        CUNIT_LIBS="$CUNIT_LIBS -lncurses"
+        AC_SUBST([CUNIT_LIBS])
+        ;;
+    esac
   fi
 fi
-if test "x${have_cunit}" = "xyes"; then
-  # cunit in Mac OS X requires ncurses. Note that in Mac OS X, test
-  # program can be built without -lncurses, but it emits runtime
-  # error.
-  case "${build}" in
-    *-apple-darwin*)
-      CUNIT_LIBS="$CUNIT_LIBS -lncurses"
-      AC_SUBST([CUNIT_LIBS])
-      ;;
-  esac
+
+if test "x${request_cunit}" = "xyes" &&
+   test "x${have_cunit}" != "xyes"; then
+  AC_MSG_ERROR([cunit was requested (--with-cunit) but not found])
 fi
 
 AM_CONDITIONAL([HAVE_CUNIT], [ test "x${have_cunit}" = "xyes" ])
 
 # libev (for src)
-# libev does not have pkg-config file.  Check it in an old way.
-save_LIBS=$LIBS
-# android requires -lm for floor
-AC_CHECK_LIB([ev], [ev_time], [have_libev=yes], [have_libev=no], [-lm])
-if test "x${have_libev}" = "xyes"; then
-  AC_CHECK_HEADER([ev.h], [have_libev=yes], [have_libev=no])
-  if test "x${have_libev}" = "xyes"; then
-    LIBEV_LIBS=-lev
-    LIBEV_CFLAGS=
-    AC_SUBST([LIBEV_LIBS])
-    AC_SUBST([LIBEV_CFLAGS])
+have_libev=no
+if test "x${request_libev}" != "xno"; then
+  if test "x${LIBEV_LIBS}" = "x" && test "x${LIBEV_CFLAGS}" = "x"; then
+    # libev does not have pkg-config file.  Check it in an old way.
+    save_LIBS=$LIBS
+    # android requires -lm for floor
+   AC_CHECK_LIB([ev], [ev_time], [have_libev=yes], [have_libev=no], [-lm])
+   if test "x${have_libev}" = "xyes"; then
+      AC_CHECK_HEADER([ev.h], [have_libev=yes], [have_libev=no])
+      if test "x${have_libev}" = "xyes"; then
+        LIBEV_LIBS=-lev
+        LIBEV_CFLAGS=
+      fi
+    fi
+    LIBS=$save_LIBS
+  else
+    have_libev=yes
   fi
 fi
-LIBS=$save_LIBS
+
+if test "x${request_libev}" = "xyes" &&
+   test "x${have_libev}" != "xyes"; then
+  AC_MSG_ERROR([libev was requested (--with-libev) but not found])
+fi
 
 # openssl (for src)
-PKG_CHECK_MODULES([OPENSSL], [openssl >= 1.0.1],
-                  [have_openssl=yes], [have_openssl=no])
-if test "x${have_openssl}" = "xno"; then
-  AC_MSG_NOTICE($OPENSSL_PKG_ERRORS)
+have_openssl=no
+if test "x${request_openssl}" != "xno"; then
+  PKG_CHECK_MODULES([OPENSSL], [openssl >= 1.0.1],
+                    [have_openssl=yes], [have_openssl=no])
+  if test "x${have_openssl}" = "xno"; then
+    AC_MSG_NOTICE($OPENSSL_PKG_ERRORS)
+  else
+    save_CFLAGS="$CFLAGS"
+    save_LIBS="$LIBS"
+    CFLAGS="$OPENSSL_CFLAGS $CFLAGS"
+    LIBS="$OPENSSL_LIBS $LIBS"
+
+    # quictls/openssl has SSL_is_quic.
+    have_ssl_is_quic=no
+    AC_MSG_CHECKING([for SSL_is_quic])
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+      #include <openssl/ssl.h>
+    ]], [[
+      SSL *ssl = NULL;
+      SSL_is_quic(ssl);
+    ]])],
+    [AC_MSG_RESULT([yes]); have_ssl_is_quic=yes],
+    [AC_MSG_RESULT([no]); have_ssl_is_quic=no])
+
+    # boringssl has SSL_set_quic_early_data_context.
+    AC_MSG_CHECKING([for SSL_set_quic_early_data_context])
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+      #include <openssl/ssl.h>
+    ]], [[
+      SSL *ssl = NULL;
+      SSL_set_quic_early_data_context(ssl, NULL, 0);
+    ]])],
+    [AC_MSG_RESULT([yes]); have_boringssl_quic=yes],
+    [AC_MSG_RESULT([no]); have_boringssl_quic=no])
+
+    CFLAGS="$save_CFLAGS"
+    LIBS="$save_LIBS"
+  fi
 fi
 
+if test "x${request_openssl}" = "xyes" &&
+   test "x${have_openssl}" != "xyes"; then
+  AC_MSG_ERROR([openssl was requested (--with-openssl) but not found])
+fi
+
+# c-ares (for src)
+have_libcares=no
+if test "x${request_libcares}" != "xno"; then
+  PKG_CHECK_MODULES([LIBCARES], [libcares >= 1.7.5], [have_libcares=yes],
+                    [have_libcares=no])
+  if test "x${have_libcares}" = "xno"; then
+    AC_MSG_NOTICE($LIBCARES_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_libcares}" = "xyes" &&
+   test "x${have_libcares}" != "xyes"; then
+  AC_MSG_ERROR([libcares was requested (--with-libcares) but not found])
+fi
+
+# ngtcp2 (for src)
+have_libngtcp2=no
+if test "x${request_libngtcp2}" != "xno"; then
+  PKG_CHECK_MODULES([LIBNGTCP2], [libngtcp2 >= 0.13.0], [have_libngtcp2=yes],
+                    [have_libngtcp2=no])
+  if test "x${have_libngtcp2}" = "xno"; then
+    AC_MSG_NOTICE($LIBNGTCP2_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_libngtcp2}" = "xyes" &&
+   test "x${have_libngtcp2}" != "xyes"; then
+  AC_MSG_ERROR([libngtcp2 was requested (--with-libngtcp2) but not found])
+fi
+
+# ngtcp2_crypto_openssl (for src)
+have_libngtcp2_crypto_openssl=no
+if test "x${have_ssl_is_quic}" = "xyes" &&
+   test "x${request_libngtcp2}" != "xno"; then
+  PKG_CHECK_MODULES([LIBNGTCP2_CRYPTO_OPENSSL],
+                    [libngtcp2_crypto_openssl >= 0.13.0],
+                    [have_libngtcp2_crypto_openssl=yes],
+                    [have_libngtcp2_crypto_openssl=no])
+  if test "x${have_libngtcp2_crypto_openssl}" = "xno"; then
+    AC_MSG_NOTICE($LIBNGTCP2_CRYPTO_OPENSSL_PKG_ERRORS)
+  else
+    AC_DEFINE([HAVE_LIBNGTCP2_CRYPTO_OPENSSL], [1],
+              [Define to 1 if you have `libngtcp2_crypto_openssl` library.])
+  fi
+fi
+
+if test "x${have_ssl_is_quic}" = "xyes" &&
+   test "x${request_libngtcp2}" = "xyes" &&
+   test "x${have_libngtcp2_crypto_openssl}" != "xyes"; then
+  AC_MSG_ERROR([libngtcp2_crypto_openssl was requested (--with-libngtcp2) but not found])
+fi
+
+# ngtcp2_crypto_boringssl (for src)
+have_libngtcp2_crypto_boringssl=no
+if test "x${have_boringssl_quic}" = "xyes" &&
+   test "x${request_libngtcp2}" != "xno"; then
+  PKG_CHECK_MODULES([LIBNGTCP2_CRYPTO_BORINGSSL],
+                    [libngtcp2_crypto_boringssl >= 0.0.0],
+                    [have_libngtcp2_crypto_boringssl=yes],
+                    [have_libngtcp2_crypto_boringssl=no])
+  if test "x${have_libngtcp2_crypto_boringssl}" = "xno"; then
+    AC_MSG_NOTICE($LIBNGTCP2_CRYPTO_BORINGSSL_PKG_ERRORS)
+  else
+    AC_DEFINE([HAVE_LIBNGTCP2_CRYPTO_BORINGSSL], [1],
+              [Define to 1 if you have `libngtcp2_crypto_boringssl` library.])
+  fi
+fi
+
+if test "x${have_boringssl_quic}" = "xyes" &&
+   test "x${request_libngtcp2}" = "xyes" &&
+   test "x${have_libngtcp2_crypto_boringssl}" != "xyes"; then
+  AC_MSG_ERROR([libngtcp2_crypto_boringssl was requested (--with-libngtcp2) but not found])
+fi
+
+# nghttp3 (for src)
+have_libnghttp3=no
+if test "x${request_libnghttp3}" != "xno"; then
+  PKG_CHECK_MODULES([LIBNGHTTP3], [libnghttp3 >= 0.7.0], [have_libnghttp3=yes],
+                    [have_libnghttp3=no])
+  if test "x${have_libnghttp3}" = "xno"; then
+    AC_MSG_NOTICE($LIBNGHTTP3_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_libnghttp3}" = "xyes" &&
+   test "x${have_libnghttp3}" != "xyes"; then
+  AC_MSG_ERROR([libnghttp3 was requested (--with-libnghttp3) but not found])
+fi
+
+# libbpf (for src)
+have_libbpf=no
+if test "x${request_libbpf}" != "xno"; then
+  PKG_CHECK_MODULES([LIBBPF], [libbpf >= 0.7.0], [have_libbpf=yes],
+                    [have_libbpf=no])
+  if test "x${have_libbpf}" = "xyes"; then
+    AC_DEFINE([HAVE_LIBBPF], [1], [Define to 1 if you have `libbpf` library.])
+    if test "x${BPFCFLAGS}" = "x"; then
+      BPFCFLAGS="-Wall -O2 -g"
+    fi
+    # Add the include path for Debian
+    EXTRABPFCFLAGS="-I/usr/include/$host_cpu-$host_os"
+    AC_SUBST([EXTRABPFCFLAGS])
+
+    AC_MSG_CHECKING([whether enum bpf_stats_type is defined in linux/bpf.h])
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+    [[
+    #include <linux/bpf.h>
+    ]],
+    [[
+    enum bpf_stats_type foo;
+    (void)foo;
+    ]])],
+    [have_bpf_stats_type=yes],
+    [have_bpf_stats_type=no])
+
+    if test "x${have_bpf_stats_type}" = "xyes"; then
+      AC_MSG_RESULT([yes])
+      AC_DEFINE([HAVE_BPF_STATS_TYPE], [1],
+                [Define to 1 if you have enum bpf_stats_type in linux/bpf.h.])
+    else
+      AC_MSG_RESULT([no])
+    fi
+  else
+    AC_MSG_NOTICE($LIBBPF_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_libbpf}" = "xyes" &&
+   test "x${have_libbpf}" != "xyes"; then
+  AC_MSG_ERROR([libbpf was requested (--with-libbpf) but not found])
+fi
+
+AM_CONDITIONAL([HAVE_LIBBPF], [ test "x${have_libbpf}" = "xyes" ])
+
 # libevent_openssl (for examples)
 # 2.0.8 is required because we use evconnlistener_set_error_cb()
-PKG_CHECK_MODULES([LIBEVENT_OPENSSL], [libevent_openssl >= 2.0.8],
-                  [have_libevent_openssl=yes], [have_libevent_openssl=no])
-if test "x${have_libevent_openssl}" = "xno"; then
-  AC_MSG_NOTICE($LIBEVENT_OPENSSL_PKG_ERRORS)
+have_libevent_openssl=no
+if test "x${request_libevent_openssl}" != "xno"; then
+  PKG_CHECK_MODULES([LIBEVENT_OPENSSL], [libevent_openssl >= 2.0.8],
+                    [have_libevent_openssl=yes], [have_libevent_openssl=no])
+  if test "x${have_libevent_openssl}" = "xno"; then
+    AC_MSG_NOTICE($LIBEVENT_OPENSSL_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_libevent_openssl}" = "xyes" &&
+   test "x${have_libevent_openssl}" != "xyes"; then
+  AC_MSG_ERROR([libevent_openssl was requested (--with-libevent) but not found])
 fi
 
 # jansson (for src/nghttp, src/deflatehd and src/inflatehd)
-PKG_CHECK_MODULES([JANSSON], [jansson >= 2.5],
-                  [have_jansson=yes], [have_jansson=no])
-if test "x${have_jansson}" = "xyes"; then
-  AC_DEFINE([HAVE_JANSSON], [1],
-            [Define to 1 if you have `libjansson` library.])
-else
-  AC_MSG_NOTICE($JANSSON_PKG_ERRORS)
+have_jansson=no
+if test "x${request_jansson}" != "xno"; then
+  PKG_CHECK_MODULES([JANSSON], [jansson >= 2.5],
+                    [have_jansson=yes], [have_jansson=no])
+  if test "x${have_jansson}" = "xyes"; then
+    AC_DEFINE([HAVE_JANSSON], [1],
+              [Define to 1 if you have `libjansson` library.])
+  else
+    AC_MSG_NOTICE($JANSSON_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_jansson}" = "xyes" &&
+   test "x${have_jansson}" != "xyes"; then
+  AC_MSG_ERROR([jansson was requested (--with-jansson) but not found])
+fi
+
+#  libsystemd (for src/nghttpx)
+have_libsystemd=no
+if test "x${request_systemd}" != "xno"; then
+  PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 209], [have_libsystemd=yes],
+                    [have_libsystemd=no])
+  if test "x${have_libsystemd}" = "xyes"; then
+    AC_DEFINE([HAVE_LIBSYSTEMD], [1],
+              [Define to 1 if you have `libsystemd` library.])
+  else
+    AC_MSG_NOTICE($SYSTEMD_PKG_ERRORS)
+  fi
+fi
+
+if test "x${request_systemd}" = "xyes" &&
+   test "x${have_libsystemd}" != "xyes"; then
+  AC_MSG_ERROR([systemd was requested (--with-systemd) but not found])
 fi
 
 # libxml2 (for src/nghttp)
 have_libxml2=no
 if test "x${request_libxml2}" != "xno"; then
-  m4_ifdef([AM_PATH_XML2],
-    [AM_PATH_XML2(2.7.7, [have_libxml2=yes], [have_libxml2=no])],
-    [AC_MSG_WARN([configure was created without libxml2 detection macro; libxml2 detection is disabled])])
-
+  PKG_CHECK_MODULES([LIBXML2], [libxml-2.0 >= 2.6.26],
+                    [have_libxml2=yes], [have_libxml2=no])
   if test "x${have_libxml2}" = "xyes"; then
     AC_DEFINE([HAVE_LIBXML2], [1], [Define to 1 if you have `libxml2` library.])
+  else
+    AC_MSG_NOTICE($LIBXML2_PKG_ERRORS)
   fi
 fi
 
@@ -410,28 +694,31 @@ AM_CONDITIONAL([HAVE_LIBXML2], [ test "x${have_libxml2}" = "xyes" ])
 # jemalloc
 have_jemalloc=no
 if test "x${request_jemalloc}" != "xno"; then
-  save_LIBS=$LIBS
-  AC_SEARCH_LIBS([malloc_stats_print], [jemalloc], [have_jemalloc=yes], [],
-                 [$PTHREAD_LDFLAGS])
-
-  if test "x${have_jemalloc}" = "xyes"; then
-    jemalloc_libs=${ac_cv_search_malloc_stats_print}
-  else
-    # On Darwin, malloc_stats_print is je_malloc_stats_print
-    AC_SEARCH_LIBS([je_malloc_stats_print], [jemalloc], [have_jemalloc=yes], [],
+  if test "x${JEMALLOC_LIBS}" = "x" && test "x${JEMALLOC_CFLAGS}" = "x"; then
+    save_LIBS=$LIBS
+    AC_SEARCH_LIBS([malloc_stats_print], [jemalloc], [have_jemalloc=yes], [],
                    [$PTHREAD_LDFLAGS])
 
     if test "x${have_jemalloc}" = "xyes"; then
-      jemalloc_libs=${ac_cv_search_je_malloc_stats_print}
+      jemalloc_libs=${ac_cv_search_malloc_stats_print}
+    else
+      # On Darwin, malloc_stats_print is je_malloc_stats_print
+      AC_SEARCH_LIBS([je_malloc_stats_print], [jemalloc], [have_jemalloc=yes], [],
+                     [$PTHREAD_LDFLAGS])
+
+      if test "x${have_jemalloc}" = "xyes"; then
+        jemalloc_libs=${ac_cv_search_je_malloc_stats_print}
+      fi
     fi
-  fi
 
-  LIBS=$save_LIBS
+    LIBS=$save_LIBS
 
-  if test "x${have_jemalloc}" = "xyes" &&
-     test "x${jemalloc_libs}" != "xnone required"; then
-    JEMALLOC_LIBS=${jemalloc_libs}
-    AC_SUBST([JEMALLOC_LIBS])
+    if test "x${have_jemalloc}" = "xyes" &&
+       test "x${jemalloc_libs}" != "xnone required"; then
+      JEMALLOC_LIBS=${jemalloc_libs}
+    fi
+  else
+    have_jemalloc=yes
   fi
 fi
 
@@ -440,52 +727,14 @@ if test "x${request_jemalloc}" = "xyes" &&
   AC_MSG_ERROR([jemalloc was requested (--with-jemalloc) but not found])
 fi
 
-# spdylay (for src/nghttpx and src/h2load)
-have_spdylay=no
-if test "x${request_spdylay}" != "xno"; then
-  PKG_CHECK_MODULES([LIBSPDYLAY], [libspdylay >= 1.3.2],
-                    [have_spdylay=yes], [have_spdylay=no])
-  if test "x${have_spdylay}" = "xyes"; then
-    AC_DEFINE([HAVE_SPDYLAY], [1], [Define to 1 if you have `spdylay` library.])
-  else
-    AC_MSG_NOTICE($LIBSPDYLAY_PKG_ERRORS)
-    AC_MSG_NOTICE([The SPDY support in nghttpx and h2load will be disabled.])
-  fi
-fi
-
-if test "x${request_spdylay}" = "xyes" &&
-   test "x${have_spdylay}" != "xyes"; then
-  AC_MSG_ERROR([spdylay was requested (--with-spdylay) but not found])
-fi
-
-AM_CONDITIONAL([HAVE_SPDYLAY], [ test "x${have_spdylay}" = "xyes" ])
-
-# Check Boost Asio library
-have_asio_lib=no
-
-if test "x${request_asio_lib}" = "xyes"; then
-  AX_BOOST_BASE([1.54.0], [have_boost_base=yes], [have_boost_base=no])
-
-  if test "x${have_boost_base}" = "xyes"; then
-    AX_BOOST_ASIO()
-    AX_BOOST_SYSTEM()
-    AX_BOOST_THREAD()
-
-    if test "x${ax_cv_boost_asio}" = "xyes" &&
-       test "x${ax_cv_boost_system}" = "xyes" &&
-       test "x${ax_cv_boost_thread}" = "xyes"; then
-      have_asio_lib=yes
-    fi
-  fi
-fi
-
-# The nghttp, nghttpd and nghttpx under src depend on zlib, OpenSSL
-# and libev
+# The nghttp, nghttpd and nghttpx under src depend on zlib, OpenSSL,
+# libev, and libc-ares.
 enable_app=no
 if test "x${request_app}" != "xno" &&
    test "x${have_zlib}" = "xyes" &&
    test "x${have_openssl}" = "xyes" &&
-   test "x${have_libev}" = "xyes"; then
+   test "x${have_libev}" = "xyes" &&
+   test "x${have_libcares}" = "xyes"; then
   enable_app=yes
 fi
 
@@ -496,6 +745,26 @@ fi
 
 AM_CONDITIONAL([ENABLE_APP], [ test "x${enable_app}" = "xyes" ])
 
+# Check HTTP/3 support
+enable_http3=no
+if test "x${request_http3}" != "xno" &&
+   (test "x${have_ssl_is_quic}" = "xyes" ||
+    test "x${have_boringssl_quic}" = "xyes") &&
+   test "x${have_libngtcp2}" = "xyes" &&
+   (test "x${have_libngtcp2_crypto_openssl}" = "xyes" ||
+    test "x${have_libngtcp2_crypto_boringssl}" = "xyes") &&
+   test "x${have_libnghttp3}" = "xyes"; then
+  enable_http3=yes
+  AC_DEFINE([ENABLE_HTTP3], [1], [Define to 1 if HTTP/3 is enabled.])
+fi
+
+if test "x${request_http3}" = "xyes" &&
+   test "x${enable_http3}" != "xyes"; then
+  AC_MSG_ERROR([HTTP/3 was requested (--enable-http3) but dependencies are not met.])
+fi
+
+AM_CONDITIONAL([ENABLE_HTTP3], [ test "x${enable_http3}" = "xyes" ])
+
 enable_hpack_tools=no
 # HPACK tools requires jansson
 if test "x${request_hpack_tools}" != "xno" &&
@@ -510,16 +779,6 @@ fi
 
 AM_CONDITIONAL([ENABLE_HPACK_TOOLS], [ test "x${enable_hpack_tools}" = "xyes" ])
 
-# C++ library libnghttp2_asio
-
-enable_asio_lib=no
-if test "x${request_asio_lib}" != "xno" &&
-   test "x${have_asio_lib}" = "xyes"; then
-  enable_asio_lib=yes
-fi
-
-AM_CONDITIONAL([ENABLE_ASIO_LIB], [ test "x${enable_asio_lib}" = "xyes" ])
-
 # The example programs depend on OpenSSL and libevent_openssl
 enable_examples=no
 if test "x${request_examples}" != "xno" &&
@@ -542,8 +801,7 @@ have_mruby=no
 have_neverbleed=no
 if test "x${enable_examples}" = "xyes" ||
    test "x${enable_app}" = "xyes" ||
-   test "x${enable_hpack_tools}" = "xyes" ||
-   test "x${enable_asio_lib}" = "xyes"; then
+   test "x${enable_hpack_tools}" = "xyes"; then
   enable_third_party=yes
 
   # mruby (for src/nghttpx)
@@ -568,27 +826,6 @@ AM_CONDITIONAL([ENABLE_THIRD_PARTY], [ test "x${enable_third_party}" = "xyes" ])
 AM_CONDITIONAL([HAVE_MRUBY], [test "x${have_mruby}" = "xyes"])
 AM_CONDITIONAL([HAVE_NEVERBLEED], [test "x${have_neverbleed}" = "xyes"])
 
-# Python bindings
-enable_python_bindings=no
-if test "x${request_python_bindings}" != "xno" &&
-   test "x${CYTHON}" != "x" &&
-   test "x${PYTHON}" != "x:" &&
-   test "x${have_python_dev}" = "xyes"; then
-  enable_python_bindings=yes
-fi
-
-if test "x${request_python_bindings}" = "xyes" &&
-   test "x${enable_python_bindings}" != "xyes"; then
-  AC_MSG_ERROR([python bindings were requested (--enable-python-bindings) but dependencies are not met.])
-fi
-
-AM_CONDITIONAL([ENABLE_PYTHON_BINDINGS],
-               [test "x${enable_python_bindings}" = "xyes"])
-
-# Produce cython conditional, so that we can distribute generated C
-# source
-AM_CONDITIONAL([HAVE_CYTHON], [test "x${CYTHON}" != "x"])
-
 # failmalloc tests
 enable_failmalloc=no
 if test "x${request_failmalloc}" = "xyes"; then
@@ -640,6 +877,26 @@ AC_SYS_LARGEFILE
 AC_CHECK_MEMBER([struct tm.tm_gmtoff], [have_struct_tm_tm_gmtoff=yes],
                 [have_struct_tm_tm_gmtoff=no], [[#include <time.h>]])
 
+AC_CHECK_MEMBER([struct sockaddr_in.sin_len],
+                [AC_DEFINE([HAVE_SOCKADDR_IN_SIN_LEN],[1],
+                  [Define to 1 if struct sockaddr_in has sin_len member.])],
+                [],
+                [[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+]])
+
+AC_CHECK_MEMBER([struct sockaddr_in6.sin6_len],
+                [AC_DEFINE([HAVE_SOCKADDR_IN6_SIN6_LEN],[1],
+                  [Define to 1 if struct sockaddr_in6 has sin6_len member.])],
+                [],
+                [[
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+]])
+
 if test "x$have_struct_tm_tm_gmtoff" = "xyes"; then
   AC_DEFINE([HAVE_STRUCT_TM_TM_GMTOFF], [1],
             [Define to 1 if you have `struct tm.tm_gmtoff` member.])
@@ -674,6 +931,7 @@ AC_CHECK_FUNCS([ \
   memchr \
   memmove \
   memset \
+  mkostemp \
   socket \
   sqrt \
   strchr \
@@ -701,13 +959,6 @@ AC_CHECK_DECLS([initgroups], [], [], [[
   #include <grp.h>
 ]])
 
-# Checks for epoll availability, primarily for examples/tiny-nghttpd
-AX_HAVE_EPOLL([have_epoll=yes], [have_epoll=no])
-
-AM_CONDITIONAL([ENABLE_TINY_NGHTTPD],
-               [ test "x${have_epoll}" = "xyes" &&
-                 test "x${have_timerfd_create}" = "xyes"])
-
 save_CFLAGS=$CFLAGS
 save_CXXFLAGS=$CXXFLAGS
 
@@ -772,6 +1023,9 @@ if test "x$werror" != "xno"; then
     AX_CHECK_COMPILE_FLAG([-Werror], [CXXFLAGS="$CXXFLAGS -Werror"])
     AX_CHECK_COMPILE_FLAG([-Wformat-security], [CXXFLAGS="$CXXFLAGS -Wformat-security"])
     AX_CHECK_COMPILE_FLAG([-Wsometimes-uninitialized], [CXXFLAGS="$CXXFLAGS -Wsometimes-uninitialized"])
+    # Disable noexcept-type warning of g++-7.  This is not harmful as
+    # long as all source files are compiled with the same compiler.
+    AX_CHECK_COMPILE_FLAG([-Wno-noexcept-type], [CXXFLAGS="$CXXFLAGS -Wno-noexcept-type"])
     AC_LANG_POP()
 fi
 
@@ -818,11 +1072,8 @@ AC_CONFIG_FILES([
   tests/testdata/Makefile
   third-party/Makefile
   src/Makefile
-  src/includes/Makefile
-  src/libnghttp2_asio.pc
+  bpf/Makefile
   examples/Makefile
-  python/Makefile
-  python/setup.py
   integration-tests/Makefile
   integration-tests/config.go
   integration-tests/setenv
@@ -835,14 +1086,9 @@ AC_CONFIG_FILES([
   doc/tutorial-hpack.rst
   doc/nghttpx-howto.rst
   doc/h2load-howto.rst
-  doc/libnghttp2_asio.rst
-  doc/python-apiref.rst
   doc/building-android-binary.rst
   doc/nghttp2.h.rst
   doc/nghttp2ver.h.rst
-  doc/asio_http2.h.rst
-  doc/asio_http2_server.h.rst
-  doc/asio_http2_client.h.rst
   doc/contribute.rst
   contrib/Makefile
   script/Makefile
@@ -871,35 +1117,37 @@ AC_MSG_NOTICE([summary of build options:
       WARNCXXFLAGS:   ${WARNCXXFLAGS}
       CXX1XCXXFLAGS:  ${CXX1XCXXFLAGS}
       EXTRACFLAG:     ${EXTRACFLAG}
+      BPFCFLAGS:      ${BPFCFLAGS}
+      EXTRABPFCFLAGS: ${EXTRABPFCFLAGS}
       LIBS:           ${LIBS}
+      DEFS:           ${DEFS}
+      EXTRA_DEFS:     ${EXTRA_DEFS}
     Library:
       Shared:         ${enable_shared}
       Static:         ${enable_static}
+    Libtool:
+      LIBTOOL_LDFLAGS: ${LIBTOOL_LDFLAGS}
     Python:
       Python:         ${PYTHON}
       PYTHON_VERSION: ${PYTHON_VERSION}
-      pyexecdir:      ${pyexecdir}
-      Python-dev:     ${have_python_dev}
-      PYTHON_CPPFLAGS:${PYTHON_CPPFLAGS}
-      PYTHON_LDFLAGS: ${PYTHON_LDFLAGS}
-      Cython:         ${CYTHON}
     Test:
       CUnit:          ${have_cunit} (CFLAGS='${CUNIT_CFLAGS}' LIBS='${CUNIT_LIBS}')
       Failmalloc:     ${enable_failmalloc}
     Libs:
       OpenSSL:        ${have_openssl} (CFLAGS='${OPENSSL_CFLAGS}' LIBS='${OPENSSL_LIBS}')
-      Libxml2:        ${have_libxml2} (CFLAGS='${XML_CPPFLAGS}' LIBS='${XML_LIBS}')
+      Libxml2:        ${have_libxml2} (CFLAGS='${LIBXML2_CFLAGS}' LIBS='${LIBXML2_LIBS}')
       Libev:          ${have_libev} (CFLAGS='${LIBEV_CFLAGS}' LIBS='${LIBEV_LIBS}')
+      Libc-ares:      ${have_libcares} (CFLAGS='${LIBCARES_CFLAGS}' LIBS='${LIBCARES_LIBS}')
+      libngtcp2:      ${have_libngtcp2} (CFLAGS='${LIBNGTCP2_CFLAGS}' LIBS='${LIBNGTCP2_LIBS}')
+      libngtcp2_crypto_openssl: ${have_libngtcp2_crypto_openssl} (CFLAGS='${LIBNGTCP2_CRYPTO_OPENSSL_CFLAGS}' LIBS='${LIBNGTCP2_CRYPTO_OPENSSL_LIBS}')
+      libngtcp2_crypto_boringssl: ${have_libngtcp2_crypto_boringssl} (CFLAGS='${LIBNGTCP2_CRYPTO_BORINGSSL_CFLAGS}' LIBS='${LIBNGTCP2_CRYPTO_BORINGSSL_LIBS}')
+      libnghttp3:     ${have_libnghttp3} (CFLAGS='${LIBNGHTTP3_CFLAGS}' LIBS='${LIBNGHTTP3_LIBS}')
+      libbpf:         ${have_libbpf} (CFLAGS='${LIBBPF_CFLAGS}' LIBS='${LIBBPF_LIBS}')
       Libevent(SSL):  ${have_libevent_openssl} (CFLAGS='${LIBEVENT_OPENSSL_CFLAGS}' LIBS='${LIBEVENT_OPENSSL_LIBS}')
-      Spdylay:        ${have_spdylay} (CFLAGS='${LIBSPDYLAY_CFLAGS}' LIBS='${LIBSPDYLAY_LIBS}')
       Jansson:        ${have_jansson} (CFLAGS='${JANSSON_CFLAGS}' LIBS='${JANSSON_LIBS}')
-      Jemalloc:       ${have_jemalloc} (LIBS='${JEMALLOC_LIBS}')
+      Jemalloc:       ${have_jemalloc} (CFLAGS='${JEMALLOC_CFLAGS}' LIBS='${JEMALLOC_LIBS}')
       Zlib:           ${have_zlib} (CFLAGS='${ZLIB_CFLAGS}' LIBS='${ZLIB_LIBS}')
-      Boost CPPFLAGS: ${BOOST_CPPFLAGS}
-      Boost LDFLAGS:  ${BOOST_LDFLAGS}
-      Boost::ASIO:    ${BOOST_ASIO_LIB}
-      Boost::System:  ${BOOST_SYSTEM_LIB}
-      Boost::Thread:  ${BOOST_THREAD_LIB}
+      Systemd:        ${have_libsystemd} (CFLAGS='${SYSTEMD_CFLAGS}' LIBS='${SYSTEMD_LIBS}')
     Third-party:
       http-parser:    ${enable_third_party}
       MRuby:          ${have_mruby} (CFLAGS='${LIBMRUBY_CFLAGS}' LIBS='${LIBMRUBY_LIBS}')
@@ -907,8 +1155,7 @@ AC_MSG_NOTICE([summary of build options:
     Features:
       Applications:   ${enable_app}
       HPACK tools:    ${enable_hpack_tools}
-      Libnghttp2_asio:${enable_asio_lib}
       Examples:       ${enable_examples}
-      Python bindings:${enable_python_bindings}
       Threading:      ${enable_threads}
+      HTTP/3 (EXPERIMENTAL): ${enable_http3}
 ])

contrib/nghttpx.service.in

@@ -1,10 +1,17 @@
 [Unit]
 Description=HTTP/2 proxy
+Documentation=man:nghttpx
 After=network.target
 
 [Service]
-Type=forking
-ExecStart=@bindir@/nghttpx --conf=/etc/nghttpx/nghttpx.conf --pid-file=/run/nghttpx.pid --daemon
+Type=notify
+ExecStart=@bindir@/nghttpx --conf=/etc/nghttpx/nghttpx.conf
+ExecReload=/bin/kill --signal HUP $MAINPID
+KillSignal=SIGQUIT
+PrivateTmp=yes
+ProtectHome=yes
+ProtectSystem=full
+Restart=always
 
 [Install]
 WantedBy=multi-user.target

contrib/tlsticketupdate.go

@@ -30,9 +30,10 @@ import (
 	"encoding/binary"
 	"flag"
 	"fmt"
-	"github.com/bradfitz/gomemcache/memcache"
 	"log"
 	"time"
+
+	"github.com/bradfitz/gomemcache/memcache"
 )
 
 func makeKey(len int) []byte {
@@ -89,9 +90,7 @@ func main() {
 			Expiration: int32((*interval) + 300),
 		})
 
-		select {
-		case <-time.After(time.Duration(*interval) * time.Second):
-		}
+		<-time.After(time.Duration(*interval) * time.Second)
 
 		// rotate keys.  the last key is now encryption key.
 		// generate new key and append it to the last, so that

doc/.gitignore

@@ -1,15 +1,11 @@
 # generated files
 apiref.rst
-asio_http2.h.rst
-asio_http2_client.h.rst
-asio_http2_server.h.rst
 building-android-binary.rst
 conf.py
 contribute.rst
 enums.rst
 h2load-howto.rst
 index.rst
-libnghttp2_asio.rst
 macros.rst
 manual/
 nghttp2.h.rst
@@ -17,7 +13,6 @@ nghttp2_*.rst
 nghttp2ver.h.rst
 nghttpx-howto.rst
 package_README.rst
-python-apiref.rst
 tutorial-client.rst
 tutorial-hpack.rst
 tutorial-server.rst

doc/CMakeLists.txt

@@ -42,6 +42,7 @@ set(APIDOCS
   nghttp2_option_set_no_recv_client_magic.rst
   nghttp2_option_set_peer_max_concurrent_streams.rst
   nghttp2_option_set_user_recv_extension_type.rst
+  nghttp2_option_set_max_settings.rst
   nghttp2_pack_settings_payload.rst
   nghttp2_priority_spec_check_default.rst
   nghttp2_priority_spec_default_init.rst
@@ -49,6 +50,7 @@ set(APIDOCS
   nghttp2_rcbuf_decref.rst
   nghttp2_rcbuf_get_buf.rst
   nghttp2_rcbuf_incref.rst
+  nghttp2_rcbuf_is_static.rst
   nghttp2_select_next_protocol.rst
   nghttp2_session_callbacks_del.rst
   nghttp2_session_callbacks_new.rst
@@ -178,13 +180,11 @@ set(EXTRA_DIST
   sources/tutorial-hpack.rst
   sources/nghttpx-howto.rst
   sources/h2load-howto.rst
-  sources/libnghttp2_asio.rst
-  sources/python-apiref.rst
   sources/building-android-binary.rst
   sources/contribute.rst
-  _exts/sphinxcontrib/LICENSE.rubydomain
-  _exts/sphinxcontrib/__init__.py
-  _exts/sphinxcontrib/rubydomain.py
+  _exts/rubydomain/LICENSE.rubydomain
+  _exts/rubydomain/__init__.py
+  _exts/rubydomain/rubydomain.py
   _themes/sphinx_rtd_theme/__init__.py
   _themes/sphinx_rtd_theme/breadcrumbs.html
   _themes/sphinx_rtd_theme/footer.html
@@ -267,7 +267,7 @@ add_custom_command(
     apiref.rst
     ${APIDOCS}
   COMMAND
-    "${PYTHON_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/mkapiref.py"
+    "${Python3_EXECUTABLE}" "${CMAKE_CURRENT_SOURCE_DIR}/mkapiref.py"
     apiref.rst macros.rst enums.rst types.rst .
     ${apiref_SOURCES}
   DEPENDS

doc/Makefile.am

@@ -27,8 +27,12 @@ APIDOCS= \
 	macros.rst \
 	enums.rst \
 	types.rst \
+	nghttp2_check_authority.rst \
 	nghttp2_check_header_name.rst \
 	nghttp2_check_header_value.rst \
+	nghttp2_check_header_value_rfc9113.rst \
+	nghttp2_check_method.rst \
+	nghttp2_check_path.rst \
 	nghttp2_hd_deflate_bound.rst \
 	nghttp2_hd_deflate_change_table_size.rst \
 	nghttp2_hd_deflate_del.rst \
@@ -62,10 +66,15 @@ APIDOCS= \
 	nghttp2_option_set_max_send_header_block_length.rst \
 	nghttp2_option_set_no_auto_ping_ack.rst \
 	nghttp2_option_set_no_auto_window_update.rst \
+	nghttp2_option_set_no_closed_streams.rst \
 	nghttp2_option_set_no_http_messaging.rst \
 	nghttp2_option_set_no_recv_client_magic.rst \
+	nghttp2_option_set_no_rfc9113_leading_and_trailing_ws_validation.rst \
 	nghttp2_option_set_peer_max_concurrent_streams.rst \
+	nghttp2_option_set_server_fallback_rfc7540_priorities.rst \
 	nghttp2_option_set_user_recv_extension_type.rst \
+	nghttp2_option_set_max_outbound_ack.rst \
+	nghttp2_option_set_max_settings.rst \
 	nghttp2_pack_settings_payload.rst \
 	nghttp2_priority_spec_check_default.rst \
 	nghttp2_priority_spec_default_init.rst \
@@ -73,12 +82,14 @@ APIDOCS= \
 	nghttp2_rcbuf_decref.rst \
 	nghttp2_rcbuf_get_buf.rst \
 	nghttp2_rcbuf_incref.rst \
+	nghttp2_rcbuf_is_static.rst \
 	nghttp2_select_next_protocol.rst \
 	nghttp2_session_callbacks_del.rst \
 	nghttp2_session_callbacks_new.rst \
 	nghttp2_session_callbacks_set_before_frame_send_callback.rst \
 	nghttp2_session_callbacks_set_data_source_read_length_callback.rst \
 	nghttp2_session_callbacks_set_error_callback.rst \
+	nghttp2_session_callbacks_set_error_callback2.rst \
 	nghttp2_session_callbacks_set_on_begin_frame_callback.rst \
 	nghttp2_session_callbacks_set_on_begin_headers_callback.rst \
 	nghttp2_session_callbacks_set_on_data_chunk_recv_callback.rst \
@@ -98,6 +109,7 @@ APIDOCS= \
 	nghttp2_session_callbacks_set_send_callback.rst \
 	nghttp2_session_callbacks_set_send_data_callback.rst \
 	nghttp2_session_callbacks_set_unpack_extension_callback.rst \
+	nghttp2_session_change_extpri_stream_priority.rst \
 	nghttp2_session_change_stream_priority.rst \
 	nghttp2_session_check_request_allowed.rst \
 	nghttp2_session_check_server_session.rst \
@@ -140,6 +152,7 @@ APIDOCS= \
 	nghttp2_session_set_local_window_size.rst \
 	nghttp2_session_set_next_stream_id.rst \
 	nghttp2_session_set_stream_user_data.rst \
+	nghttp2_session_set_user_data.rst \
 	nghttp2_session_terminate_session.rst \
 	nghttp2_session_terminate_session2.rst \
 	nghttp2_session_upgrade.rst \
@@ -160,8 +173,10 @@ APIDOCS= \
 	nghttp2_submit_extension.rst \
 	nghttp2_submit_goaway.rst \
 	nghttp2_submit_headers.rst \
+	nghttp2_submit_origin.rst \
 	nghttp2_submit_ping.rst \
 	nghttp2_submit_priority.rst \
+	nghttp2_submit_priority_update.rst \
 	nghttp2_submit_push_promise.rst \
 	nghttp2_submit_request.rst \
 	nghttp2_submit_response.rst \
@@ -191,30 +206,12 @@ EXTRA_DIST = \
 	sources/tutorial-hpack.rst \
 	sources/nghttpx-howto.rst \
 	sources/h2load-howto.rst \
-	sources/libnghttp2_asio.rst \
-	sources/python-apiref.rst \
 	sources/building-android-binary.rst \
 	sources/contribute.rst \
-	_exts/sphinxcontrib/LICENSE.rubydomain \
-	_exts/sphinxcontrib/__init__.py \
-	_exts/sphinxcontrib/rubydomain.py \
-	_themes/sphinx_rtd_theme/__init__.py \
-	_themes/sphinx_rtd_theme/breadcrumbs.html \
-	_themes/sphinx_rtd_theme/footer.html \
-	_themes/sphinx_rtd_theme/layout.html \
-	_themes/sphinx_rtd_theme/layout_old.html \
-	_themes/sphinx_rtd_theme/search.html \
-	_themes/sphinx_rtd_theme/searchbox.html \
-	_themes/sphinx_rtd_theme/static/css/badge_only.css \
-	_themes/sphinx_rtd_theme/static/css/theme.css \
-	_themes/sphinx_rtd_theme/static/fonts/FontAwesome.otf \
-	_themes/sphinx_rtd_theme/static/fonts/fontawesome-webfont.eot \
-	_themes/sphinx_rtd_theme/static/fonts/fontawesome-webfont.svg \
-	_themes/sphinx_rtd_theme/static/fonts/fontawesome-webfont.ttf \
-	_themes/sphinx_rtd_theme/static/fonts/fontawesome-webfont.woff \
-	_themes/sphinx_rtd_theme/static/js/theme.js \
-	_themes/sphinx_rtd_theme/theme.conf \
-	_themes/sphinx_rtd_theme/versions.html \
+	sources/security.rst \
+	_exts/rubydomain/LICENSE.rubydomain \
+	_exts/rubydomain/__init__.py \
+	_exts/rubydomain/rubydomain.py \
 	$(man_MANS) \
 	bash_completion/nghttp \
 	bash_completion/nghttpd \
@@ -226,7 +223,7 @@ EXTRA_DIST = \
 
 # You can set these variables from the command line.
 SPHINXOPTS    =
-SPHINXBUILD   = sphinx-build
+SPHINXBUILD   ?= sphinx-build
 PAPER         =
 BUILDDIR      = manual
 
@@ -266,7 +263,7 @@ apiref.rst: \
 $(APIDOCS): apiref.rst
 
 clean-local:
-	[ $(srcdir) = $(builddir) ] || for i in $(RST_FILES); do [ -e $(builddir)/$$i ] && rm $(builddir)/$$i; done
+	if [ $(srcdir) != $(builddir) ]; then for i in $(RST_FILES); do rm -f $(builddir)/$$i; done fi
 	-rm -f apiref.rst
 	-rm -f $(APIDOCS)
 	-rm -rf $(BUILDDIR)/*

doc/_exts/rubydomain/rubydomain.py

@@ -13,18 +13,17 @@ import re
 
 from docutils import nodes
 from docutils.parsers.rst import directives
+from docutils.parsers.rst import Directive
 
 from sphinx import addnodes
 from sphinx import version_info
 from sphinx.roles import XRefRole
-from sphinx.locale import l_, _
+from sphinx.locale import _
 from sphinx.domains import Domain, ObjType, Index
 from sphinx.directives import ObjectDescription
 from sphinx.util.nodes import make_refnode
-from sphinx.util.compat import Directive
 from sphinx.util.docfields import Field, GroupedField, TypedField
 
-
 # REs for Ruby signatures
 rb_sig_re = re.compile(
     r'''^ ([\w.]*\.)?            # class name(s)
@@ -65,18 +64,18 @@ class RubyObject(ObjectDescription):
     }
 
     doc_field_types = [
-        TypedField('parameter', label=l_('Parameters'),
+        TypedField('parameter', label=_('Parameters'),
                    names=('param', 'parameter', 'arg', 'argument'),
                    typerolename='obj', typenames=('paramtype', 'type')),
-        TypedField('variable', label=l_('Variables'), rolename='obj',
+        TypedField('variable', label=_('Variables'), rolename='obj',
                    names=('var', 'ivar', 'cvar'),
                    typerolename='obj', typenames=('vartype',)),
-        GroupedField('exceptions', label=l_('Raises'), rolename='exc',
+        GroupedField('exceptions', label=_('Raises'), rolename='exc',
                      names=('raises', 'raise', 'exception', 'except'),
                      can_collapse=True),
-        Field('returnvalue', label=l_('Returns'), has_arg=False,
+        Field('returnvalue', label=_('Returns'), has_arg=False,
               names=('returns', 'return')),
-        Field('returntype', label=l_('Return type'), has_arg=False,
+        Field('returntype', label=_('Return type'), has_arg=False,
               names=('rtype',)),
     ]
 
@@ -483,8 +482,8 @@ class RubyModuleIndex(Index):
     """
 
     name = 'modindex'
-    localname = l_('Ruby Module Index')
-    shortname = l_('modules')
+    localname = _('Ruby Module Index')
+    shortname = _('modules')
 
     def generate(self, docnames=None):
         content = {}
@@ -494,7 +493,7 @@ class RubyModuleIndex(Index):
         # list of all modules, sorted by module name
         modules = sorted(_iteritems(self.domain.data['modules']),
                          key=lambda x: x[0].lower())
-        # sort out collapsable modules
+        # sort out collapsible modules
         prev_modname = ''
         num_toplevels = 0
         for modname, (docname, synopsis, platforms, deprecated) in modules:
@@ -551,17 +550,17 @@ class RubyDomain(Domain):
     name = 'rb'
     label = 'Ruby'
     object_types = {
-        'function':        ObjType(l_('function'),         'func', 'obj'),
-        'global':          ObjType(l_('global variable'),  'global', 'obj'),
-        'method':          ObjType(l_('method'),           'meth', 'obj'),
-        'class':           ObjType(l_('class'),            'class', 'obj'),
-        'exception':       ObjType(l_('exception'),        'exc', 'obj'),
-        'classmethod':     ObjType(l_('class method'),     'meth', 'obj'),
-        'attr_reader':     ObjType(l_('attribute'),        'attr', 'obj'),
-        'attr_writer':     ObjType(l_('attribute'),        'attr', 'obj'),
-        'attr_accessor':   ObjType(l_('attribute'),        'attr', 'obj'),
-        'const':           ObjType(l_('const'),            'const', 'obj'),
-        'module':          ObjType(l_('module'),           'mod', 'obj'),
+        'function':        ObjType(_('function'),         'func', 'obj'),
+        'global':          ObjType(_('global variable'),  'global', 'obj'),
+        'method':          ObjType(_('method'),           'meth', 'obj'),
+        'class':           ObjType(_('class'),            'class', 'obj'),
+        'exception':       ObjType(_('exception'),        'exc', 'obj'),
+        'classmethod':     ObjType(_('class method'),     'meth', 'obj'),
+        'attr_reader':     ObjType(_('attribute'),        'attr', 'obj'),
+        'attr_writer':     ObjType(_('attribute'),        'attr', 'obj'),
+        'attr_accessor':   ObjType(_('attribute'),        'attr', 'obj'),
+        'const':           ObjType(_('const'),            'const', 'obj'),
+        'module':          ObjType(_('module'),           'mod', 'obj'),
     }
 
     directives = {

doc/_themes/sphinx_rtd_theme/__init__.py

@@ -1,17 +0,0 @@
-"""Sphinx ReadTheDocs theme.
-
-From https://github.com/ryan-roemer/sphinx-bootstrap-theme.
-
-"""
-import os
-
-VERSION = (0, 1, 9)
-
-__version__ = ".".join(str(v) for v in VERSION)
-__version_full__ = __version__
-
-
-def get_html_theme_path():
-    """Return list of HTML theme paths."""
-    cur_dir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
-    return cur_dir

doc/_themes/sphinx_rtd_theme/breadcrumbs.html

@@ -1,31 +0,0 @@
-{# Support for Sphinx 1.3+ page_source_suffix, but don't break old builds. #}
-
-{% if page_source_suffix %} 
-{% set suffix = page_source_suffix %}
-{% else %}
-{% set suffix = source_suffix %}
-{% endif %}
-
-<div role="navigation" aria-label="breadcrumbs navigation">
-  <ul class="wy-breadcrumbs">
-    <li><a href="{{ pathto(master_doc) }}">Docs</a> &raquo;</li>
-      {% for doc in parents %}
-        <li><a href="{{ doc.link|e }}">{{ doc.title }}</a> &raquo;</li>
-      {% endfor %}
-    <li>{{ title }}</li>
-    <li class="wy-breadcrumbs-aside">
-      {% if pagename != "search" %}
-        {% if display_github %}
-          <a href="https://{{ github_host|default("github.com") }}/{{ github_user }}/{{ github_repo }}/blob/{{ github_version }}{{ conf_py_path }}{{ pagename }}{{ suffix }}" class="fa fa-github"> Edit on GitHub</a>
-        {% elif display_bitbucket %}
-          <a href="https://bitbucket.org/{{ bitbucket_user }}/{{ bitbucket_repo }}/src/{{ bitbucket_version}}{{ conf_py_path }}{{ pagename }}{{ suffix }}" class="fa fa-bitbucket"> Edit on Bitbucket</a>
-        {% elif show_source and source_url_prefix %}
-          <a href="{{ source_url_prefix }}{{ pagename }}{{ suffix }}">View page source</a>
-        {% elif show_source and has_source and sourcename %}
-          <a href="{{ pathto('_sources/' + sourcename, true)|e }}" rel="nofollow"> View page source</a>
-        {% endif %}
-      {% endif %}
-    </li>
-  </ul>
-  <hr/>
-</div>

doc/_themes/sphinx_rtd_theme/footer.html

@@ -1,52 +0,0 @@
-<footer>
-  {% if next or prev %}
-    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
-      {% if next %}
-        <a href="{{ next.link|e }}" class="btn btn-neutral float-right" title="{{ next.title|striptags|e }}" accesskey="n">Next <span class="fa fa-arrow-circle-right"></span></a>
-      {% endif %}
-      {% if prev %}
-        <a href="{{ prev.link|e }}" class="btn btn-neutral" title="{{ prev.title|striptags|e }}" accesskey="p"><span class="fa fa-arrow-circle-left"></span> Previous</a>
-      {% endif %}
-    </div>
-  {% endif %}
-
-  <hr/>
-
-  <div role="contentinfo">
-    <p>
-    {%- if show_copyright %}
-      {%- if hasdoc('copyright') %}
-        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
-      {%- else %}
-        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
-      {%- endif %}
-    {%- endif %}
-
-    {%- if build_id and build_url %}
-      {% trans build_url=build_url, build_id=build_id %}
-        <span class="build">
-          Build
-          <a href="{{ build_url }}">{{ build_id }}</a>.
-        </span>
-      {% endtrans %}
-    {%- elif commit %}
-      {% trans commit=commit %}
-        <span class="commit">
-          Revision <code>{{ commit }}</code>.
-        </span>
-      {% endtrans %}
-    {%- elif last_updated %}
-      {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
-    {%- endif %}
-
-    </p>
-  </div>
-
-  {%- if show_sphinx %}
-  {% trans %}Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>{% endtrans %}.
-  {%- endif %}
-
-  {%- block extrafooter %} {% endblock %}
-
-</footer>
-

doc/_themes/sphinx_rtd_theme/layout.html

@@ -1,197 +0,0 @@
-{# TEMPLATE VAR SETTINGS #}
-{%- set url_root = pathto('', 1) %}
-{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
-{%- if not embedded and docstitle %}
-  {%- set titlesuffix = " — "|safe + docstitle|e %}
-{%- else %}
-  {%- set titlesuffix = "" %}
-{%- endif %}
-
-<!DOCTYPE html>
-<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
-<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
-<head>
-  <meta charset="utf-8">
-  {{ metatags }}
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  {% block htmltitle %}
-  <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
-  {% endblock %}
-
-  {# FAVICON #}
-  {% if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-  {% endif %}
-
-  {# CSS #}
-
-  {# OPENSEARCH #}
-  {% if not embedded %}
-    {% if use_opensearch %}
-      <link rel="search" type="application/opensearchdescription+xml" title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}" href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {% endif %}
-
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-  {% if not READTHEDOCS %}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-  {% endif %}
-
-  {% for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {% for cssfile in extra_css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {%- block linktags %}
-    {%- if hasdoc('about') %}
-        <link rel="author" title="{{ _('About these documents') }}"
-              href="{{ pathto('about') }}"/>
-    {%- endif %}
-    {%- if hasdoc('genindex') %}
-        <link rel="index" title="{{ _('Index') }}"
-              href="{{ pathto('genindex') }}"/>
-    {%- endif %}
-    {%- if hasdoc('search') %}
-        <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}"/>
-    {%- endif %}
-    {%- if hasdoc('copyright') %}
-        <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}"/>
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}"/>
-    {%- if parents %}
-        <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}"/>
-    {%- endif %}
-    {%- if next %}
-        <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}"/>
-    {%- endif %}
-    {%- if prev %}
-        <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}"/>
-    {%- endif %}
-  {%- endblock %}
-  {%- block extrahead %} {% endblock %}
-
-  {# Keep modernizr in head - http://modernizr.com/docs/#installing #}
-  <script src="{{ pathto('_static/js/modernizr.min.js', 1) }}"></script>
-
-</head>
-
-<body class="wy-body-for-nav" role="document">
-
-  {% block extrabody %} {% endblock %}
-  <div class="wy-grid-for-nav">
-
-    {# SIDE NAV, TOGGLES ON MOBILE #}
-    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
-      <div class="wy-side-scroll">
-        <div class="wy-side-nav-search">
-          {% block sidebartitle %}
-
-          {% if logo and theme_logo_only %}
-            <a href="{{ pathto(master_doc) }}">
-          {% else %}
-            <a href="{{ pathto(master_doc) }}" class="icon icon-home"> {{ project }}
-          {% endif %}
-
-          {% if logo %}
-            {# Not strictly valid HTML, but it's the only way to display/scale it properly, without weird scripting or heaps of work #}
-            <img src="{{ pathto('_static/' + logo, 1) }}" class="logo" />
-          {% endif %}
-          </a>
-
-          {% if theme_display_version %}
-            {%- set nav_version = version %}
-            {% if READTHEDOCS and current_version %}
-              {%- set nav_version = current_version %}
-            {% endif %}
-            {% if nav_version %}
-              <div class="version">
-                {{ nav_version }}
-              </div>
-            {% endif %}
-          {% endif %}
-
-          {% include "searchbox.html" %}
-
-          {% endblock %}
-        </div>
-
-        <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
-          {% block menu %}
-            {% set toctree = toctree(maxdepth=4, collapse=theme_collapse_navigation, includehidden=True) %}
-            {% if toctree %}
-                {{ toctree }}
-            {% else %}
-                <!-- Local TOC -->
-                <div class="local-toc">{{ toc }}</div>
-            {% endif %}
-          {% endblock %}
-        </div>
-      </div>
-    </nav>
-
-    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
-
-      {# MOBILE NAV, TRIGGLES SIDE NAV ON TOGGLE #}
-      <nav class="wy-nav-top" role="navigation" aria-label="top navigation">
-        <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
-        <a href="{{ pathto(master_doc) }}">{{ project }}</a>
-      </nav>
-
-
-      {# PAGE CONTENT #}
-      <div class="wy-nav-content">
-        <div class="rst-content">
-          {% include "breadcrumbs.html" %}
-          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
-           <div itemprop="articleBody">
-            {% block body %}{% endblock %}
-           </div>
-          </div>
-          {% include "footer.html" %}
-        </div>
-      </div>
-
-    </section>
-
-  </div>
-  {% include "versions.html" %}
-
-  {% if not embedded %}
-
-    <script type="text/javascript">
-        var DOCUMENTATION_OPTIONS = {
-            URL_ROOT:'{{ url_root }}',
-            VERSION:'{{ release|e }}',
-            COLLAPSE_INDEX:false,
-            FILE_SUFFIX:'{{ '' if no_search_suffix else file_suffix }}',
-            HAS_SOURCE:  {{ has_source|lower }}
-        };
-    </script>
-    {%- for scriptfile in script_files %}
-      <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
-    {%- endfor %}
-
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-  {% if not READTHEDOCS %}
-    <script type="text/javascript" src="{{ pathto('_static/js/theme.js', 1) }}"></script>
-  {% endif %}
-
-  {# STICKY NAVIGATION #}
-  {% if theme_sticky_navigation %}
-  <script type="text/javascript">
-      jQuery(function () {
-          SphinxRtdTheme.StickyNav.enable();
-      });
-  </script>
-  {% endif %}
-
-  {%- block footer %} {% endblock %}
-
-</body>
-</html>

doc/_themes/sphinx_rtd_theme/layout_old.html

@@ -1,205 +0,0 @@
-{#
-    basic/layout.html
-    ~~~~~~~~~~~~~~~~~
-
-    Master layout template for Sphinx themes.
-
-    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-#}
-{%- block doctype -%}
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
-  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-{%- endblock %}
-{%- set reldelim1 = reldelim1 is not defined and ' &raquo;' or reldelim1 %}
-{%- set reldelim2 = reldelim2 is not defined and ' |' or reldelim2 %}
-{%- set render_sidebar = (not embedded) and (not theme_nosidebar|tobool) and
-                         (sidebars != []) %}
-{%- set url_root = pathto('', 1) %}
-{# XXX necessary? #}
-{%- if url_root == '#' %}{% set url_root = '' %}{% endif %}
-{%- if not embedded and docstitle %}
-  {%- set titlesuffix = " &mdash; "|safe + docstitle|e %}
-{%- else %}
-  {%- set titlesuffix = "" %}
-{%- endif %}
-
-{%- macro relbar() %}
-    <div class="related">
-      <h3>{{ _('Navigation') }}</h3>
-      <ul>
-        {%- for rellink in rellinks %}
-        <li class="right" {% if loop.first %}style="margin-right: 10px"{% endif %}>
-          <a href="{{ pathto(rellink[0]) }}" title="{{ rellink[1]|striptags|e }}"
-             {{ accesskey(rellink[2]) }}>{{ rellink[3] }}</a>
-          {%- if not loop.first %}{{ reldelim2 }}{% endif %}</li>
-        {%- endfor %}
-        {%- block rootrellink %}
-        <li><a href="{{ pathto(master_doc) }}">{{ shorttitle|e }}</a>{{ reldelim1 }}</li>
-        {%- endblock %}
-        {%- for parent in parents %}
-          <li><a href="{{ parent.link|e }}" {% if loop.last %}{{ accesskey("U") }}{% endif %}>{{ parent.title }}</a>{{ reldelim1 }}</li>
-        {%- endfor %}
-        {%- block relbaritems %} {% endblock %}
-      </ul>
-    </div>
-{%- endmacro %}
-
-{%- macro sidebar() %}
-      {%- if render_sidebar %}
-      <div class="sphinxsidebar">
-        <div class="sphinxsidebarwrapper">
-          {%- block sidebarlogo %}
-          {%- if logo %}
-            <p class="logo"><a href="{{ pathto(master_doc) }}">
-              <img class="logo" src="{{ pathto('_static/' + logo, 1) }}" alt="Logo"/>
-            </a></p>
-          {%- endif %}
-          {%- endblock %}
-          {%- if sidebars != None %}
-            {#- new style sidebar: explicitly include/exclude templates #}
-            {%- for sidebartemplate in sidebars %}
-            {%- include sidebartemplate %}
-            {%- endfor %}
-          {%- else %}
-            {#- old style sidebars: using blocks -- should be deprecated #}
-            {%- block sidebartoc %}
-            {%- include "localtoc.html" %}
-            {%- endblock %}
-            {%- block sidebarrel %}
-            {%- include "relations.html" %}
-            {%- endblock %}
-            {%- block sidebarsourcelink %}
-            {%- include "sourcelink.html" %}
-            {%- endblock %}
-            {%- if customsidebar %}
-            {%- include customsidebar %}
-            {%- endif %}
-            {%- block sidebarsearch %}
-            {%- include "searchbox.html" %}
-            {%- endblock %}
-          {%- endif %}
-        </div>
-      </div>
-      {%- endif %}
-{%- endmacro %}
-
-{%- macro script() %}
-    <script type="text/javascript">
-      var DOCUMENTATION_OPTIONS = {
-        URL_ROOT:    '{{ url_root }}',
-        VERSION:     '{{ release|e }}',
-        COLLAPSE_INDEX: false,
-        FILE_SUFFIX: '{{ '' if no_search_suffix else file_suffix }}',
-        HAS_SOURCE:  {{ has_source|lower }}
-      };
-    </script>
-    {%- for scriptfile in script_files %}
-    <script type="text/javascript" src="{{ pathto(scriptfile, 1) }}"></script>
-    {%- endfor %}
-{%- endmacro %}
-
-{%- macro css() %}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-    <link rel="stylesheet" href="{{ pathto('_static/pygments.css', 1) }}" type="text/css" />
-    {%- for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-    {%- endfor %}
-{%- endmacro %}
-
-<html xmlns="http://www.w3.org/1999/xhtml">
-  <head>
-    <meta http-equiv="Content-Type" content="text/html; charset={{ encoding }}" />
-    {{ metatags }}
-    {%- block htmltitle %}
-    <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
-    {%- endblock %}
-    {{ css() }}
-    {%- if not embedded %}
-    {{ script() }}
-    {%- if use_opensearch %}
-    <link rel="search" type="application/opensearchdescription+xml"
-          title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}"
-          href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {%- endif %}
-    {%- if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-    {%- endif %}
-    {%- endif %}
-{%- block linktags %}
-    {%- if hasdoc('about') %}
-    <link rel="author" title="{{ _('About these documents') }}" href="{{ pathto('about') }}" />
-    {%- endif %}
-    {%- if hasdoc('genindex') %}
-    <link rel="index" title="{{ _('Index') }}" href="{{ pathto('genindex') }}" />
-    {%- endif %}
-    {%- if hasdoc('search') %}
-    <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}" />
-    {%- endif %}
-    {%- if hasdoc('copyright') %}
-    <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}" />
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}" />
-    {%- if parents %}
-    <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}" />
-    {%- endif %}
-    {%- if next %}
-    <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}" />
-    {%- endif %}
-    {%- if prev %}
-    <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}" />
-    {%- endif %}
-{%- endblock %}
-{%- block extrahead %} {% endblock %}
-  </head>
-  <body>
-{%- block header %}{% endblock %}
-
-{%- block relbar1 %}{{ relbar() }}{% endblock %}
-
-{%- block content %}
-  {%- block sidebar1 %} {# possible location for sidebar #} {% endblock %}
-
-    <div class="document">
-  {%- block document %}
-      <div class="documentwrapper">
-      {%- if render_sidebar %}
-        <div class="bodywrapper">
-      {%- endif %}
-          <div class="body">
-            {% block body %} {% endblock %}
-          </div>
-      {%- if render_sidebar %}
-        </div>
-      {%- endif %}
-      </div>
-  {%- endblock %}
-
-  {%- block sidebar2 %}{{ sidebar() }}{% endblock %}
-      <div class="clearer"></div>
-    </div>
-{%- endblock %}
-
-{%- block relbar2 %}{{ relbar() }}{% endblock %}
-
-{%- block footer %}
-    <div class="footer">
-    {%- if show_copyright %}
-      {%- if hasdoc('copyright') %}
-        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
-      {%- else %}
-        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.{% endtrans %}
-      {%- endif %}
-    {%- endif %}
-    {%- if last_updated %}
-      {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
-    {%- endif %}
-    {%- if show_sphinx %}
-      {% trans sphinx_version=sphinx_version|e %}Created using <a href="http://sphinx-doc.org/">Sphinx</a> {{ sphinx_version }}.{% endtrans %}
-    {%- endif %}
-    </div>
-    <p>asdf asdf asdf asdf 22</p>
-{%- endblock %}
-  </body>
-</html>
-

doc/_themes/sphinx_rtd_theme/search.html

@@ -1,50 +0,0 @@
-{#
-    basic/search.html
-    ~~~~~~~~~~~~~~~~~
-
-    Template for the search page.
-
-    :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
-#}
-{%- extends "layout.html" %}
-{% set title = _('Search') %}
-{% set script_files = script_files + ['_static/searchtools.js'] %}
-{% block footer %}
-  <script type="text/javascript">
-    jQuery(function() { Search.loadIndex("{{ pathto('searchindex.js', 1) }}"); });
-  </script>
-  {# this is used when loading the search index using $.ajax fails,
-     such as on Chrome for documents on localhost #}
-  <script type="text/javascript" id="searchindexloader"></script>
-  {{ super() }}
-{% endblock %}
-{% block body %}
-  <noscript>
-  <div id="fallback" class="admonition warning">
-    <p class="last">
-      {% trans %}Please activate JavaScript to enable the search
-      functionality.{% endtrans %}
-    </p>
-  </div>
-  </noscript>
-
-  {% if search_performed %}
-    <h2>{{ _('Search Results') }}</h2>
-    {% if not search_results %}
-      <p>{{ _('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.') }}</p>
-    {% endif %}
-  {% endif %}
-  <div id="search-results">
-  {% if search_results %}
-    <ul>
-    {% for href, caption, context in search_results %}
-      <li>
-        <a href="{{ pathto(item.href) }}">{{ caption }}</a>
-        <p class="context">{{ context|e }}</p>
-      </li>
-    {% endfor %}
-    </ul>
-  {% endif %}
-  </div>
-{% endblock %}

doc/_themes/sphinx_rtd_theme/searchbox.html

@@ -1,9 +0,0 @@
-{%- if builder != 'singlehtml' %}
-<div role="search">
-  <form id="rtd-search-form" class="wy-form" action="{{ pathto('search') }}" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
-    <input type="hidden" name="check_keywords" value="yes" />
-    <input type="hidden" name="area" value="default" />
-  </form>
-</div>
-{%- endif %}

doc/_themes/sphinx_rtd_theme/static/css/badge_only.css

@@ -1,2 +0,0 @@
-.fa:before{-webkit-font-smoothing:antialiased}.clearfix{*zoom:1}.clearfix:before,.clearfix:after{display:table;content:""}.clearfix:after{clear:both}@font-face{font-family:FontAwesome;font-weight:normal;font-style:normal;src:url("../font/fontawesome_webfont.eot");src:url("../font/fontawesome_webfont.eot?#iefix") format("embedded-opentype"),url("../font/fontawesome_webfont.woff") format("woff"),url("../font/fontawesome_webfont.ttf") format("truetype"),url("../font/fontawesome_webfont.svg#FontAwesome") format("svg")}.fa:before{display:inline-block;font-family:FontAwesome;font-style:normal;font-weight:normal;line-height:1;text-decoration:inherit}a .fa{display:inline-block;text-decoration:inherit}li .fa{display:inline-block}li .fa-large:before,li .fa-large:before{width:1.875em}ul.fas{list-style-type:none;margin-left:2em;text-indent:-0.8em}ul.fas li .fa{width:0.8em}ul.fas li .fa-large:before,ul.fas li .fa-large:before{vertical-align:baseline}.fa-book:before{content:""}.icon-book:before{content:""}.fa-caret-down:before{content:""}.icon-caret-down:before{content:""}.fa-caret-up:before{content:""}.icon-caret-up:before{content:""}.fa-caret-left:before{content:""}.icon-caret-left:before{content:""}.fa-caret-right:before{content:""}.icon-caret-right:before{content:""}.rst-versions{position:fixed;bottom:0;left:0;width:300px;color:#fcfcfc;background:#1f1d1d;border-top:solid 10px #343131;font-family:"Lato","proxima-nova","Helvetica Neue",Arial,sans-serif;z-index:400}.rst-versions a{color:#2980B9;text-decoration:none}.rst-versions .rst-badge-small{display:none}.rst-versions .rst-current-version{padding:12px;background-color:#272525;display:block;text-align:right;font-size:90%;cursor:pointer;color:#27AE60;*zoom:1}.rst-versions .rst-current-version:before,.rst-versions .rst-current-version:after{display:table;content:""}.rst-versions .rst-current-version:after{clear:both}.rst-versions .rst-current-version .fa{color:#fcfcfc}.rst-versions .rst-current-version .fa-book{float:left}.rst-versions .rst-current-version .icon-book{float:left}.rst-versions .rst-current-version.rst-out-of-date{background-color:#E74C3C;color:#fff}.rst-versions .rst-current-version.rst-active-old-version{background-color:#F1C40F;color:#000}.rst-versions.shift-up .rst-other-versions{display:block}.rst-versions .rst-other-versions{font-size:90%;padding:12px;color:gray;display:none}.rst-versions .rst-other-versions hr{display:block;height:1px;border:0;margin:20px 0;padding:0;border-top:solid 1px #413d3d}.rst-versions .rst-other-versions dd{display:inline-block;margin:0}.rst-versions .rst-other-versions dd a{display:inline-block;padding:6px;color:#fcfcfc}.rst-versions.rst-badge{width:auto;bottom:20px;right:20px;left:auto;border:none;max-width:300px}.rst-versions.rst-badge .icon-book{float:none}.rst-versions.rst-badge .fa-book{float:none}.rst-versions.rst-badge.shift-up .rst-current-version{text-align:right}.rst-versions.rst-badge.shift-up .rst-current-version .fa-book{float:left}.rst-versions.rst-badge.shift-up .rst-current-version .icon-book{float:left}.rst-versions.rst-badge .rst-current-version{width:auto;height:30px;line-height:30px;padding:0 6px;display:block;text-align:center}@media screen and (max-width: 768px){.rst-versions{width:85%;display:none}.rst-versions.shift{display:block}img{width:100%;height:auto}}
-/*# sourceMappingURL=badge_only.css.map */

doc/_themes/sphinx_rtd_theme/static/css/badge_only.css.map

@@ -1,7 +0,0 @@
-{
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doc/_themes/sphinx_rtd_theme/static/js/theme.js

@@ -1,156 +0,0 @@
-require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({"sphinx-rtd-theme":[function(require,module,exports){
-var jQuery = (typeof(window) != 'undefined') ? window.jQuery : require('jquery');
-
-// Sphinx theme nav state
-function ThemeNav () {
-
-    var nav = {
-        navBar: null,
-        win: null,
-        winScroll: false,
-        winResize: false,
-        linkScroll: false,
-        winPosition: 0,
-        winHeight: null,
-        docHeight: null,
-        isRunning: false
-    };
-
-    nav.enable = function () {
-        var self = this;
-
-        if (!self.isRunning) {
-            self.isRunning = true;
-            jQuery(function ($) {
-                self.init($);
-
-                self.reset();
-                self.win.on('hashchange', self.reset);
-
-                // Set scroll monitor
-                self.win.on('scroll', function () {
-                    if (!self.linkScroll) {
-                        self.winScroll = true;
-                    }
-                });
-                setInterval(function () { if (self.winScroll) self.onScroll(); }, 25);
-
-                // Set resize monitor
-                self.win.on('resize', function () {
-                    self.winResize = true;
-                });
-                setInterval(function () { if (self.winResize) self.onResize(); }, 25);
-                self.onResize();
-            });
-        };
-    };
-
-    nav.init = function ($) {
-        var doc = $(document),
-            self = this;
-
-        this.navBar = $('div.wy-side-scroll:first');
-        this.win = $(window);
-
-        // Set up javascript UX bits
-        $(document)
-            // Shift nav in mobile when clicking the menu.
-            .on('click', "[data-toggle='wy-nav-top']", function() {
-                $("[data-toggle='wy-nav-shift']").toggleClass("shift");
-                $("[data-toggle='rst-versions']").toggleClass("shift");
-            })
-
-            // Nav menu link click operations
-            .on('click', ".wy-menu-vertical .current ul li a", function() {
-                var target = $(this);
-                // Close menu when you click a link.
-                $("[data-toggle='wy-nav-shift']").removeClass("shift");
-                $("[data-toggle='rst-versions']").toggleClass("shift");
-                // Handle dynamic display of l3 and l4 nav lists
-                self.toggleCurrent(target);
-                self.hashChange();
-            })
-            .on('click', "[data-toggle='rst-current-version']", function() {
-                $("[data-toggle='rst-versions']").toggleClass("shift-up");
-            })
-
-        // Make tables responsive
-        $("table.docutils:not(.field-list)")
-            .wrap("<div class='wy-table-responsive'></div>");
-
-        // Add expand links to all parents of nested ul
-        $('.wy-menu-vertical ul').not('.simple').siblings('a').each(function () {
-            var link = $(this);
-                expand = $('<span class="toctree-expand"></span>');
-            expand.on('click', function (ev) {
-                self.toggleCurrent(link);
-                ev.stopPropagation();
-                return false;
-            });
-            link.prepend(expand);
-        });
-    };
-
-    nav.reset = function () {
-        // Get anchor from URL and open up nested nav
-        var anchor = encodeURI(window.location.hash);
-        if (anchor) {
-            try {
-                var link = $('.wy-menu-vertical')
-                    .find('[href="' + anchor + '"]');
-                $('.wy-menu-vertical li.toctree-l1 li.current')
-                    .removeClass('current');
-                link.closest('li.toctree-l2').addClass('current');
-                link.closest('li.toctree-l3').addClass('current');
-                link.closest('li.toctree-l4').addClass('current');
-            }
-            catch (err) {
-                console.log("Error expanding nav for anchor", err);
-            }
-        }
-    };
-
-    nav.onScroll = function () {
-        this.winScroll = false;
-        var newWinPosition = this.win.scrollTop(),
-            winBottom = newWinPosition + this.winHeight,
-            navPosition = this.navBar.scrollTop(),
-            newNavPosition = navPosition + (newWinPosition - this.winPosition);
-        if (newWinPosition < 0 || winBottom > this.docHeight) {
-            return;
-        }
-        this.navBar.scrollTop(newNavPosition);
-        this.winPosition = newWinPosition;
-    };
-
-    nav.onResize = function () {
-        this.winResize = false;
-        this.winHeight = this.win.height();
-        this.docHeight = $(document).height();
-    };
-
-    nav.hashChange = function () {
-        this.linkScroll = true;
-        this.win.one('hashchange', function () {
-            this.linkScroll = false;
-        });
-    };
-
-    nav.toggleCurrent = function (elem) {
-        var parent_li = elem.closest('li');
-        parent_li.siblings('li.current').removeClass('current');
-        parent_li.siblings().find('li.current').removeClass('current');
-        parent_li.find('> ul li.current').removeClass('current');
-        parent_li.toggleClass('current');
-    }
-
-    return nav;
-};
-
-module.exports.ThemeNav = ThemeNav();
-
-if (typeof(window) != 'undefined') {
-    window.SphinxRtdTheme = { StickyNav: module.exports.ThemeNav };
-}
-
-},{"jquery":"jquery"}]},{},["sphinx-rtd-theme"]);

doc/_themes/sphinx_rtd_theme/theme.conf

@@ -1,11 +0,0 @@
-[theme]
-inherit = basic
-stylesheet = css/theme.css
-
-[options]
-typekit_id = hiw1hhg
-analytics_id = 
-sticky_navigation = False
-logo_only =
-collapse_navigation = False
-display_version = True

doc/_themes/sphinx_rtd_theme/versions.html

@@ -1,37 +0,0 @@
-{% if READTHEDOCS %}
-{# Add rst-badge after rst-versions for small badge style. #}
-  <div class="rst-versions" data-toggle="rst-versions" role="note" aria-label="versions">
-    <span class="rst-current-version" data-toggle="rst-current-version">
-      <span class="fa fa-book"> Read the Docs</span>
-      v: {{ current_version }}
-      <span class="fa fa-caret-down"></span>
-    </span>
-    <div class="rst-other-versions">
-      <dl>
-        <dt>Versions</dt>
-        {% for slug, url in versions %}
-          <dd><a href="{{ url }}">{{ slug }}</a></dd>
-        {% endfor %}
-      </dl>
-      <dl>
-        <dt>Downloads</dt>
-        {% for type, url in downloads %}
-          <dd><a href="{{ url }}">{{ type }}</a></dd>
-        {% endfor %}
-      </dl>
-      <dl>
-        <dt>On Read the Docs</dt>
-          <dd>
-            <a href="//{{ PRODUCTION_DOMAIN }}/projects/{{ slug }}/?fromdocs={{ slug }}">Project Home</a>
-          </dd>
-          <dd>
-            <a href="//{{ PRODUCTION_DOMAIN }}/builds/{{ slug }}/?fromdocs={{ slug }}">Builds</a>
-          </dd>
-      </dl>
-      <hr/>
-      Free document hosting provided by <a href="http://www.readthedocs.org">Read the Docs</a>.
-
-    </div>
-  </div>
-{% endif %}
-

doc/asio_http2.h.rst.in

@@ -1,5 +0,0 @@
-asio_http2.h
-============
-
-.. literalinclude:: @top_srcdir@/src/includes/nghttp2/asio_http2.h
-   :language: cpp

doc/asio_http2_client.h.rst.in

@@ -1,5 +0,0 @@
-asio_http2_client.h
-===================
-
-.. literalinclude:: @top_srcdir@/src/includes/nghttp2/asio_http2_client.h
-   :language: cpp

doc/asio_http2_server.h.rst.in

@@ -1,5 +0,0 @@
-asio_http2_server.h
-===================
-
-.. literalinclude:: @top_srcdir@/src/includes/nghttp2/asio_http2_server.h
-   :language: cpp

doc/bash_completion/h2load

@@ -8,7 +8,7 @@ _h2load()
     _get_comp_words_by_ref cur prev
     case $cur in
         -*)
-            COMPREPLY=( $( compgen -W '--connection-window-bits --clients --verbose --ciphers --rate --no-tls-proto --header-table-size --requests --base-uri --h1 --threads --npn-list --rate-period --data --version --connection-inactivity-timeout --timing-script-file --encoder-header-table-size --max-concurrent-streams --connection-active-timeout --input-file --help --window-bits --header ' -- "$cur" ) )
+            COMPREPLY=( $( compgen -W '--requests --clients --threads --input-file --max-concurrent-streams --max-frame-size --window-bits --connection-window-bits --header --ciphers --tls13-ciphers --no-tls-proto --data --rate --rate-period --duration --warm-up-time --connection-active-timeout --connection-inactivity-timeout --timing-script-file --base-uri --npn-list --h1 --header-table-size --encoder-header-table-size --log-file --qlog-file-base --connect-to --rps --groups --no-udp-gso --max-udp-payload-size --ktls --verbose --version --help ' -- "$cur" ) )
             ;;
         *)
             _filedir

doc/bash_completion/make_bash_completion.py

@@ -1,8 +1,6 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-from __future__ import unicode_literals
-from __future__ import print_function
 import subprocess
 import io
 import re

doc/bash_completion/nghttp

@@ -8,7 +8,7 @@ _nghttp()
     _get_comp_words_by_ref cur prev
     case $cur in
         -*)
-            COMPREPLY=( $( compgen -W '--no-push --verbose --no-dep --get-assets --har --header-table-size --multiply --encoder-header-table-size --padding --hexdump --max-concurrent-streams --continuation --connection-window-bits --peer-max-concurrent-streams --timeout --data --no-content-length --version --color --cert --upgrade --remote-name --trailer --weight --help --key --null-out --window-bits --expect-continue --stat --header ' -- "$cur" ) )
+            COMPREPLY=( $( compgen -W '--verbose --null-out --remote-name --timeout --window-bits --connection-window-bits --get-assets --stat --header --trailer --cert --key --data --multiply --upgrade --weight --peer-max-concurrent-streams --header-table-size --encoder-header-table-size --padding --har --color --continuation --no-content-length --no-dep --hexdump --no-push --max-concurrent-streams --expect-continue --no-verify-peer --ktls --no-rfc7540-pri --version --help ' -- "$cur" ) )
             ;;
         *)
             _filedir

doc/bash_completion/nghttpd

@@ -8,7 +8,7 @@ _nghttpd()
     _get_comp_words_by_ref cur prev
     case $cur in
         -*)
-            COMPREPLY=( $( compgen -W '--htdocs --verbose --daemon --echo-upload --error-gzip --push --header-table-size --encoder-header-table-size --padding --hexdump --max-concurrent-streams --no-tls --connection-window-bits --mime-types-file --no-content-length --workers --version --color --early-response --dh-param-file --trailer --address --window-bits --verify-client --help ' -- "$cur" ) )
+            COMPREPLY=( $( compgen -W '--address --daemon --verify-client --htdocs --verbose --no-tls --header-table-size --encoder-header-table-size --color --push --padding --max-concurrent-streams --workers --error-gzip --window-bits --connection-window-bits --dh-param-file --early-response --trailer --hexdump --echo-upload --mime-types-file --no-content-length --ktls --no-rfc7540-pri --version --help ' -- "$cur" ) )
             ;;
         *)
             _filedir

doc/bash_completion/nghttpx

@@ -8,7 +8,7 @@ _nghttpx()
     _get_comp_words_by_ref cur prev
     case $cur in
         -*)
-            COMPREPLY=( $( compgen -W '--worker-read-rate --include --frontend-http2-dump-response-header --tls-ticket-key-file --verify-client-cacert --max-response-header-fields --backend-http2-window-size --backend-request-buffer --max-request-header-fields --fastopen --tls-ticket-key-memcached --conf --backend-http2-max-concurrent-streams --worker-write-burst --npn-list --fetch-ocsp-response-file --no-via --tls-session-cache-memcached-cert-file --no-http2-cipher-black-list --mruby-file --stream-read-timeout --backend-connect-timeout --forwarded-for --accesslog-syslog --frontend-http2-read-timeout --listener-disable-timeout --ciphers --strip-incoming-x-forwarded-for --no-server-rewrite --private-key-passwd-file --backend-keep-alive-timeout --backend-http-proxy-uri --rlimit-nofile --tls-ticket-key-memcached-cert-file --ocsp-update-interval --forwarded-by --tls-session-cache-memcached-private-key-file --error-page --backend-write-timeout --tls-dyn-rec-warmup-threshold --tls-ticket-key-memcached-max-retry --frontend-http2-window-size --http2-no-cookie-crumbling --worker-read-burst --dh-param-file --accesslog-format --errorlog-syslog --request-header-field-buffer --api-max-request-body --frontend-http2-decoder-dynamic-table-size --errorlog-file --frontend-http2-max-concurrent-streams --frontend-write-timeout --tls-ticket-key-cipher --read-burst --backend --server-name --insecure --backend-max-backoff --log-level --host-rewrite --tls-proto-list --tls-ticket-key-memcached-interval --frontend-http2-setting-timeout --frontend-http2-connection-window-size --worker-frontend-connections --syslog-facility --no-server-push --no-location-rewrite --tls-session-cache-memcached --no-ocsp --frontend-http2-encoder-dynamic-table-size --workers --add-forwarded --worker-write-rate --add-request-header --backend-http2-settings-timeout --subcert --ecdh-curves --no-kqueue --help --frontend-frame-debug --tls-sct-dir --pid-file --frontend-http2-dump-request-header --daemon --write-rate --altsvc --backend-http2-decoder-dynamic-table-size --user --add-x-forwarded-for --frontend-read-timeout --tls-ticket-key-memcached-max-fail --backlog --write-burst --backend-connections-per-host --response-header-field-buffer --tls-ticket-key-memcached-address-family --padding --tls-session-cache-memcached-address-family --stream-write-timeout --cacert --tls-ticket-key-memcached-private-key-file --backend-address-family --backend-http2-connection-window-size --version --add-response-header --backend-read-timeout --frontend-http2-optimize-window-size --frontend --accesslog-file --http2-proxy --backend-http2-encoder-dynamic-table-size --client-private-key-file --client-cert-file --accept-proxy-protocol --tls-dyn-rec-idle-timeout --frontend-http2-optimize-write-buffer-size --verify-client --backend-response-buffer --read-rate --backend-connections-per-frontend --strip-incoming-forwarded ' -- "$cur" ) )
+            COMPREPLY=( $( compgen -W '--backend --frontend --backlog --backend-address-family --backend-http-proxy-uri --workers --single-thread --read-rate --read-burst --write-rate --write-burst --worker-read-rate --worker-read-burst --worker-write-rate --worker-write-burst --worker-frontend-connections --backend-connections-per-host --backend-connections-per-frontend --rlimit-nofile --rlimit-memlock --backend-request-buffer --backend-response-buffer --fastopen --no-kqueue --frontend-http2-read-timeout --frontend-http3-read-timeout --frontend-read-timeout --frontend-write-timeout --frontend-keep-alive-timeout --stream-read-timeout --stream-write-timeout --backend-read-timeout --backend-write-timeout --backend-connect-timeout --backend-keep-alive-timeout --listener-disable-timeout --frontend-http2-setting-timeout --backend-http2-settings-timeout --backend-max-backoff --ciphers --tls13-ciphers --client-ciphers --tls13-client-ciphers --ecdh-curves --insecure --cacert --private-key-passwd-file --subcert --dh-param-file --npn-list --verify-client --verify-client-cacert --verify-client-tolerate-expired --client-private-key-file --client-cert-file --tls-min-proto-version --tls-max-proto-version --tls-ticket-key-file --tls-ticket-key-memcached --tls-ticket-key-memcached-address-family --tls-ticket-key-memcached-interval --tls-ticket-key-memcached-max-retry --tls-ticket-key-memcached-max-fail --tls-ticket-key-cipher --tls-ticket-key-memcached-cert-file --tls-ticket-key-memcached-private-key-file --fetch-ocsp-response-file --ocsp-update-interval --ocsp-startup --no-verify-ocsp --no-ocsp --tls-session-cache-memcached --tls-session-cache-memcached-address-family --tls-session-cache-memcached-cert-file --tls-session-cache-memcached-private-key-file --tls-dyn-rec-warmup-threshold --tls-dyn-rec-idle-timeout --no-http2-cipher-block-list --client-no-http2-cipher-block-list --tls-sct-dir --psk-secrets --client-psk-secrets --tls-no-postpone-early-data --tls-max-early-data --tls-ktls --frontend-http2-max-concurrent-streams --backend-http2-max-concurrent-streams --frontend-http2-window-size --frontend-http2-connection-window-size --backend-http2-window-size --backend-http2-connection-window-size --http2-no-cookie-crumbling --padding --no-server-push --frontend-http2-optimize-write-buffer-size --frontend-http2-optimize-window-size --frontend-http2-encoder-dynamic-table-size --frontend-http2-decoder-dynamic-table-size --backend-http2-encoder-dynamic-table-size --backend-http2-decoder-dynamic-table-size --http2-proxy --log-level --accesslog-file --accesslog-syslog --accesslog-format --accesslog-write-early --errorlog-file --errorlog-syslog --syslog-facility --add-x-forwarded-for --strip-incoming-x-forwarded-for --no-add-x-forwarded-proto --no-strip-incoming-x-forwarded-proto --add-forwarded --strip-incoming-forwarded --forwarded-by --forwarded-for --no-via --no-strip-incoming-early-data --no-location-rewrite --host-rewrite --altsvc --http2-altsvc --add-request-header --add-response-header --request-header-field-buffer --max-request-header-fields --response-header-field-buffer --max-response-header-fields --error-page --server-name --no-server-rewrite --redirect-https-port --require-http-scheme --api-max-request-body --dns-cache-timeout --dns-lookup-timeout --dns-max-try --frontend-max-requests --frontend-http2-dump-request-header --frontend-http2-dump-response-header --frontend-frame-debug --daemon --pid-file --user --single-process --max-worker-processes --worker-process-grace-shutdown-period --mruby-file --ignore-per-pattern-mruby-error --frontend-quic-idle-timeout --frontend-quic-debug-log --quic-bpf-program-file --frontend-quic-early-data --frontend-quic-qlog-dir --frontend-quic-require-token --frontend-quic-congestion-controller --frontend-quic-secret-file --quic-server-id --frontend-quic-initial-rtt --no-quic-bpf --frontend-http3-window-size --frontend-http3-connection-window-size --frontend-http3-max-window-size --frontend-http3-max-connection-window-size --frontend-http3-max-concurrent-streams --conf --include --version --help ' -- "$cur" ) )
             ;;
         *)
             _filedir

doc/conf.py.in

@@ -41,7 +41,7 @@ import sys, os
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 #sys.path.insert(0, os.path.abspath('.'))
 
-sys.path.append(os.path.abspath('@top_srcdir@/doc/_exts'))
+sys.path.insert(0, os.path.abspath('@top_srcdir@/doc/_exts'))
 
 # -- General configuration -----------------------------------------------------
 
@@ -50,7 +50,7 @@ sys.path.append(os.path.abspath('@top_srcdir@/doc/_exts'))
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = ['sphinxcontrib.rubydomain']
+extensions = ['rubydomain.rubydomain']
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['@top_srcdir@/_templates']
@@ -128,7 +128,7 @@ html_theme = 'sphinx_rtd_theme'
 #html_theme_options = {}
 
 # Add any paths that contain custom themes here, relative to this directory.
-html_theme_path = ['@top_srcdir@/doc/_themes']
+#html_theme_path = ['@top_srcdir@/doc/_themes']
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
@@ -157,7 +157,7 @@ html_theme_path = ['@top_srcdir@/doc/_themes']
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
-html_use_smartypants = False
+#html_use_smartypants = False
 
 # Custom sidebar templates, maps document names to template names.
 html_sidebars = {

doc/docutils.conf

@@ -0,0 +1,2 @@
+[parsers]
+smart_quotes=no

doc/h2load.1

@@ -1,8 +1,5 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "H2LOAD" "1" "Oct 24, 2016" "1.16.0" "nghttp2"
-.SH NAME
-h2load \- HTTP/2 benchmarking tool
 .
 .nr rst2man-indent-level 0
 .
@@ -30,12 +27,15 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
+.TH "H2LOAD" "1" "Nov 13, 2022" "1.51.0" "nghttp2"
+.SH NAME
+h2load \- HTTP/2 benchmarking tool
 .SH SYNOPSIS
 .sp
 \fBh2load\fP [OPTIONS]... [URI]...
 .SH DESCRIPTION
 .sp
-benchmarking tool for HTTP/2 and SPDY server
+benchmarking tool for HTTP/2 server
 .INDENT 0.0
 .TP
 .B <URI>
@@ -54,7 +54,9 @@ scheme, host or port values.
 Number of  requests across all  clients.  If it  is used
 with \fI\%\-\-timing\-script\-file\fP option,  this option specifies
 the number of requests  each client performs rather than
-the number of requests across all clients.
+the number of requests  across all clients.  This option
+is ignored if timing\-based  benchmarking is enabled (see
+\fI\%\-\-duration\fP option).
 .sp
 Default: \fB1\fP
 .UNINDENT
@@ -97,9 +99,17 @@ Default: \fB1\fP
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-f, \-\-max\-frame\-size=<SIZE>
+Maximum frame size that the local endpoint is willing to
+receive.
+.sp
+Default: \fB16K\fP
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-w, \-\-window\-bits=<N>
 Sets the stream level initial window size to (2**<N>)\-1.
-For SPDY, 2**<N> is used instead.
+For QUIC, <N> is capped to 26 (roughly 64MiB).
 .sp
 Default: \fB30\fP
 .UNINDENT
@@ -107,9 +117,7 @@ Default: \fB30\fP
 .TP
 .B \-W, \-\-connection\-window\-bits=<N>
 Sets  the  connection  level   initial  window  size  to
-(2**<N>)\-1.  For SPDY, if <N>  is strictly less than 16,
-this option  is ignored.   Otherwise 2**<N> is  used for
-SPDY.
+(2**<N>)\-1.
 .sp
 Default: \fB30\fP
 .UNINDENT
@@ -121,16 +129,25 @@ Add/Override a header to the requests.
 .INDENT 0.0
 .TP
 .B \-\-ciphers=<SUITE>
-Set allowed  cipher list.  The  format of the  string is
-described in OpenSSL ciphers(1).
+Set  allowed cipher  list  for TLSv1.2  or earlier.   The
+format of the string is described in OpenSSL ciphers(1).
+.sp
+Default: \fBECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:DHE\-RSA\-AES128\-GCM\-SHA256:DHE\-RSA\-AES256\-GCM\-SHA384\fP
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-tls13\-ciphers=<SUITE>
+Set allowed cipher list for  TLSv1.3.  The format of the
+string is described in OpenSSL ciphers(1).
+.sp
+Default: \fBTLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_CCM_SHA256\fP
 .UNINDENT
 .INDENT 0.0
 .TP
 .B \-p, \-\-no\-tls\-proto=<PROTOID>
 Specify ALPN identifier of the  protocol to be used when
 accessing http URI without SSL/TLS.
-Available protocols: spdy/2, spdy/3, spdy/3.1, h2c and
-http/1.1
+Available protocols: h2c and http/1.1
 .sp
 Default: \fBh2c\fP
 .UNINDENT
@@ -155,7 +172,7 @@ example,  with   \fI\%\-t\fP2  and   \fI\%\-r\fP4,  each  thread   gets  2
 connections per period.  When the rate is 0, the program
 will run  as it  normally does, creating  connections at
 whatever variable rate it  wants.  The default value for
-this option is 0.
+this option is 0.  \fI\%\-r\fP and \fI\%\-D\fP are mutually exclusive.
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -168,6 +185,20 @@ option is 1s.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-D, \-\-duration=<DURATION>
+Specifies the main duration for the measurements in case
+of timing\-based  benchmarking.  \fI\%\-D\fP  and \fI\%\-r\fP  are mutually
+exclusive.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-warm\-up\-time=<DURATION>
+Specifies the  time  period  before  starting the actual
+measurements, in  case  of  timing\-based benchmarking.
+Needs to provided along with \fI\%\-D\fP option.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-T, \-\-connection\-active\-timeout=<DURATION>
 Specifies  the maximum  time that  h2load is  willing to
 keep a  connection open,  regardless of the  activity on
@@ -206,7 +237,8 @@ to the  number of  script lines.   The scheme,  host and
 port defined in  the first URI are  used solely.  Values
 contained  in  other  URIs,  if  present,  are  ignored.
 Definition of a  base URI overrides all  scheme, host or
-port values.
+port   values.   \fI\%\-\-timing\-script\-file\fP   and  \fI\%\-\-rps\fP   are
+mutually exclusive.
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -231,7 +263,7 @@ NPN.  The parameter must be  delimited by a single comma
 only  and any  white spaces  are  treated as  a part  of
 protocol string.
 .sp
-Default: \fBh2,h2\-16,h2\-14,spdy/3.1,spdy/3,spdy/2,http/1.1\fP
+Default: \fBh2,h2\-16,h2\-14,http/1.1\fP
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -259,6 +291,60 @@ Default: \fB4K\fP
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-\-log\-file=<PATH>
+Write per\-request information to a file as tab\-separated
+columns: start  time as  microseconds since  epoch; HTTP
+status code;  microseconds until end of  response.  More
+columns may be added later.  Rows are ordered by end\-of\-
+response  time when  using  one worker  thread, but  may
+appear slightly  out of order with  multiple threads due
+to buffering.  Status code is \-1 for failed streams.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-qlog\-file\-base=<PATH>
+Enable qlog output and specify base file name for qlogs.
+Qlog is emitted  for each connection.  For  a given base
+name   "base",    each   output   file    name   becomes
+"base.M.N.sqlog" where M is worker ID and N is client ID
+(e.g. "base.0.3.sqlog").  Only effective in QUIC runs.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-connect\-to=<HOST>[:<PORT>]
+Host and port to connect  instead of using the authority
+in <URI>.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-rps=<N>
+Specify request  per second for each  client.  \fI\%\-\-rps\fP and
+\fI\%\-\-timing\-script\-file\fP are mutually exclusive.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-groups=<GROUPS>
+Specify the supported groups.
+.sp
+Default: \fBX25519:P\-256:P\-384:P\-521\fP
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-no\-udp\-gso
+Disable UDP GSO.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-max\-udp\-payload\-size=<SIZE>
+Specify the maximum outgoing UDP datagram payload size.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-ktls
+Enable ktls.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-v, \-\-verbose
 Output debug information.
 .UNINDENT
@@ -333,8 +419,7 @@ compression.  Let \fBdecompressed(headers)\fP to the number of bytes
 used for header fields after decompression.  The \fBspace savings\fP
 is calculated  by (1 \- \fBheaders\fP  / \fBdecompressed(headers)\fP) *
 100.  For HTTP/1.1, this is usually  0.00%, since it does not have
-header compression.  For HTTP/2 and SPDY, it shows some insightful
-numbers.
+header compression.  For HTTP/2, it shows some insightful numbers.
 .TP
 .B data
 The number of response body bytes received from the server.
@@ -364,13 +449,16 @@ range (mean +/\- sd) against total number of successful requests.
 .INDENT 7.0
 .TP
 .B min
-The minimum time taken to connect to a server.
+The minimum time taken to connect to a server including TLS
+handshake.
 .TP
 .B max
-The maximum time taken to connect to a server.
+The maximum time taken to connect to a server including TLS
+handshake.
 .TP
 .B mean
-The mean time taken to connect to a server.
+The mean time taken to connect to a server including TLS
+handshake.
 .TP
 .B sd
 The standard deviation of the time taken to connect to a server.
@@ -431,7 +519,7 @@ h2load sets large flow control window by default, and effectively
 disables flow control to avoid under utilization of server
 performance.  To set smaller flow control window, use \fI\%\-w\fP and
 \fI\%\-W\fP options.  For example, use \fB\-w16 \-W16\fP to set default
-window size described in HTTP/2 and SPDY protocol specification.
+window size described in HTTP/2 protocol specification.
 .SH SEE ALSO
 .sp
 \fBnghttp(1)\fP, \fBnghttpd(1)\fP, \fBnghttpx(1)\fP

doc/h2load.1.rst

@@ -14,7 +14,7 @@ SYNOPSIS
 DESCRIPTION
 -----------
 
-benchmarking tool for HTTP/2 and SPDY server
+benchmarking tool for HTTP/2 server
 
 .. describe:: <URI>
 
@@ -34,7 +34,9 @@ OPTIONS
     Number of  requests across all  clients.  If it  is used
     with :option:`--timing-script-file` option,  this option specifies
     the number of requests  each client performs rather than
-    the number of requests across all clients.
+    the number of requests  across all clients.  This option
+    is ignored if timing-based  benchmarking is enabled (see
+    :option:`--duration` option).
 
     Default: ``1``
 
@@ -71,19 +73,24 @@ OPTIONS
 
     Default: ``1``
 
+.. option:: -f, --max-frame-size=<SIZE>
+
+    Maximum frame size that the local endpoint is willing to
+    receive.
+
+    Default: ``16K``
+
 .. option:: -w, --window-bits=<N>
 
     Sets the stream level initial window size to (2\*\*<N>)-1.
-    For SPDY, 2\*\*<N> is used instead.
+    For QUIC, <N> is capped to 26 (roughly 64MiB).
 
     Default: ``30``
 
 .. option:: -W, --connection-window-bits=<N>
 
     Sets  the  connection  level   initial  window  size  to
-    (2\*\*<N>)-1.  For SPDY, if <N>  is strictly less than 16,
-    this option  is ignored.   Otherwise 2\*\*<N> is  used for
-    SPDY.
+    (2\*\*<N>)-1.
 
     Default: ``30``
 
@@ -93,15 +100,23 @@ OPTIONS
 
 .. option:: --ciphers=<SUITE>
 
-    Set allowed  cipher list.  The  format of the  string is
-    described in OpenSSL ciphers(1).
+    Set  allowed cipher  list  for TLSv1.2  or earlier.   The
+    format of the string is described in OpenSSL ciphers(1).
+
+    Default: ``ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384``
+
+.. option:: --tls13-ciphers=<SUITE>
+
+    Set allowed cipher list for  TLSv1.3.  The format of the
+    string is described in OpenSSL ciphers(1).
+
+    Default: ``TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_CCM_SHA256``
 
 .. option:: -p, --no-tls-proto=<PROTOID>
 
     Specify ALPN identifier of the  protocol to be used when
     accessing http URI without SSL/TLS.
-    Available protocols: spdy/2, spdy/3, spdy/3.1, h2c and
-    http/1.1
+    Available protocols: h2c and http/1.1
 
     Default: ``h2c``
 
@@ -124,7 +139,7 @@ OPTIONS
     connections per period.  When the rate is 0, the program
     will run  as it  normally does, creating  connections at
     whatever variable rate it  wants.  The default value for
-    this option is 0.
+    this option is 0.  :option:`-r` and :option:`\-D` are mutually exclusive.
 
 .. option:: --rate-period=<DURATION>
 
@@ -134,6 +149,18 @@ OPTIONS
     the rate option is not used.  The default value for this
     option is 1s.
 
+.. option:: -D, --duration=<DURATION>
+
+    Specifies the main duration for the measurements in case
+    of timing-based  benchmarking.  :option:`-D`  and :option:`\-r`  are mutually
+    exclusive.
+
+.. option:: --warm-up-time=<DURATION>
+
+    Specifies the  time  period  before  starting the actual
+    measurements, in  case  of  timing-based benchmarking.
+    Needs to provided along with :option:`-D` option.
+
 .. option:: -T, --connection-active-timeout=<DURATION>
 
     Specifies  the maximum  time that  h2load is  willing to
@@ -171,7 +198,8 @@ OPTIONS
     port defined in  the first URI are  used solely.  Values
     contained  in  other  URIs,  if  present,  are  ignored.
     Definition of a  base URI overrides all  scheme, host or
-    port values.
+    port   values.   :option:`--timing-script-file`   and  :option:`\--rps`   are
+    mutually exclusive.
 
 .. option:: -B, --base-uri=(<URI>|unix:<PATH>)
 
@@ -194,7 +222,7 @@ OPTIONS
     only  and any  white spaces  are  treated as  a part  of
     protocol string.
 
-    Default: ``h2,h2-16,h2-14,spdy/3.1,spdy/3,spdy/2,http/1.1``
+    Default: ``h2,h2-16,h2-14,http/1.1``
 
 .. option:: --h1
 
@@ -217,6 +245,52 @@ OPTIONS
 
     Default: ``4K``
 
+.. option:: --log-file=<PATH>
+
+    Write per-request information to a file as tab-separated
+    columns: start  time as  microseconds since  epoch; HTTP
+    status code;  microseconds until end of  response.  More
+    columns may be added later.  Rows are ordered by end-of-
+    response  time when  using  one worker  thread, but  may
+    appear slightly  out of order with  multiple threads due
+    to buffering.  Status code is -1 for failed streams.
+
+.. option:: --qlog-file-base=<PATH>
+
+    Enable qlog output and specify base file name for qlogs.
+    Qlog is emitted  for each connection.  For  a given base
+    name   "base",    each   output   file    name   becomes
+    "base.M.N.sqlog" where M is worker ID and N is client ID
+    (e.g. "base.0.3.sqlog").  Only effective in QUIC runs.
+
+.. option:: --connect-to=<HOST>[:<PORT>]
+
+    Host and port to connect  instead of using the authority
+    in <URI>.
+
+.. option:: --rps=<N>
+
+    Specify request  per second for each  client.  :option:`--rps` and
+    :option:`--timing-script-file` are mutually exclusive.
+
+.. option:: --groups=<GROUPS>
+
+    Specify the supported groups.
+
+    Default: ``X25519:P-256:P-384:P-521``
+
+.. option:: --no-udp-gso
+
+    Disable UDP GSO.
+
+.. option:: --max-udp-payload-size=<SIZE>
+
+    Specify the maximum outgoing UDP datagram payload size.
+
+.. option:: --ktls
+
+    Enable ktls.
+
 .. option:: -v, --verbose
 
     Output debug information.
@@ -282,8 +356,7 @@ traffic
     used for header fields after decompression.  The ``space savings``
     is calculated  by (1 - ``headers``  / ``decompressed(headers)``) *
     100.  For HTTP/1.1, this is usually  0.00%, since it does not have
-    header compression.  For HTTP/2 and SPDY, it shows some insightful
-    numbers.
+    header compression.  For HTTP/2, it shows some insightful numbers.
   data
     The number of response body bytes received from the server.
 
@@ -302,11 +375,14 @@ time for request
 
 time for connect
   min
-    The minimum time taken to connect to a server.
+    The minimum time taken to connect to a server including TLS
+    handshake.
   max
-    The maximum time taken to connect to a server.
+    The maximum time taken to connect to a server including TLS
+    handshake.
   mean
-    The mean time taken to connect to a server.
+    The mean time taken to connect to a server including TLS
+    handshake.
   sd
     The standard deviation of the time taken to connect to a server.
   +/- sd
@@ -351,7 +427,7 @@ h2load sets large flow control window by default, and effectively
 disables flow control to avoid under utilization of server
 performance.  To set smaller flow control window, use :option:`-w` and
 :option:`-W` options.  For example, use ``-w16 -W16`` to set default
-window size described in HTTP/2 and SPDY protocol specification.
+window size described in HTTP/2 protocol specification.
 
 SEE ALSO
 --------

doc/h2load.h2r

@@ -41,8 +41,7 @@ traffic
     used for header fields after decompression.  The ``space savings``
     is calculated  by (1 - ``headers``  / ``decompressed(headers)``) *
     100.  For HTTP/1.1, this is usually  0.00%, since it does not have
-    header compression.  For HTTP/2 and SPDY, it shows some insightful
-    numbers.
+    header compression.  For HTTP/2, it shows some insightful numbers.
   data
     The number of response body bytes received from the server.
 
@@ -61,11 +60,14 @@ time for request
 
 time for connect
   min
-    The minimum time taken to connect to a server.
+    The minimum time taken to connect to a server including TLS
+    handshake.
   max
-    The maximum time taken to connect to a server.
+    The maximum time taken to connect to a server including TLS
+    handshake.
   mean
-    The mean time taken to connect to a server.
+    The mean time taken to connect to a server including TLS
+    handshake.
   sd
     The standard deviation of the time taken to connect to a server.
   +/- sd
@@ -110,7 +112,7 @@ h2load sets large flow control window by default, and effectively
 disables flow control to avoid under utilization of server
 performance.  To set smaller flow control window, use :option:`-w` and
 :option:`-W` options.  For example, use ``-w16 -W16`` to set default
-window size described in HTTP/2 and SPDY protocol specification.
+window size described in HTTP/2 protocol specification.
 
 SEE ALSO
 --------

doc/libnghttp2_asio.rst.in

@@ -1 +0,0 @@
-.. include:: @top_srcdir@/doc/sources/libnghttp2_asio.rst

doc/mkapiref.py

@@ -1,9 +1,11 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # nghttp2 - HTTP/2 C Library
-
+#
+# Copyright (c) 2020 nghttp2 contributors
+# Copyright (c) 2020 ngtcp2 contributors
 # Copyright (c) 2012 Tatsuhiro Tsujikawa
-
+#
 # Permission is hereby granted, free of charge, to any person obtaining
 # a copy of this software and associated documentation files (the
 # "Software"), to deal in the Software without restriction, including
@@ -25,17 +27,16 @@
 
 # Generates API reference from C source code.
 
-from __future__ import unicode_literals
-from __future__ import print_function # At least python 2.6 is required
 import re, sys, argparse, os.path
 
 class FunctionDoc:
-    def __init__(self, name, content, domain):
+    def __init__(self, name, content, domain, filename):
         self.name = name
         self.content = content
         self.domain = domain
         if self.domain == 'function':
             self.funcname = re.search(r'(nghttp2_[^ )]+)\(', self.name).group(1)
+        self.filename = filename
 
     def write(self, out):
         out.write('.. {}:: {}\n'.format(self.domain, self.name))
@@ -64,6 +65,26 @@ class StructDoc:
                     out.write('        {}\n'.format(line))
             out.write('\n')
 
+class EnumDoc:
+    def __init__(self, name, content, members):
+        self.name = name
+        self.content = content
+        self.members = members
+
+    def write(self, out):
+        if self.name:
+            out.write('.. type:: {}\n'.format(self.name))
+            out.write('\n')
+            for line in self.content:
+                out.write('    {}\n'.format(line))
+            out.write('\n')
+            for name, content in self.members:
+                out.write('    .. enum:: {}\n'.format(name))
+                out.write('\n')
+                for line in content:
+                    out.write('        {}\n'.format(line))
+            out.write('\n')
+
 class MacroDoc:
     def __init__(self, name, content):
         self.name = name
@@ -75,50 +96,76 @@ class MacroDoc:
         for line in self.content:
             out.write('    {}\n'.format(line))
 
-def make_api_ref(infiles):
+class MacroSectionDoc:
+    def __init__(self, content):
+        self.content = content
+
+    def write(self, out):
+        out.write('\n')
+        c = ' '.join(self.content).strip()
+        out.write(c)
+        out.write('\n')
+        out.write('-' * len(c))
+        out.write('\n\n')
+
+class TypedefDoc:
+    def __init__(self, name, content):
+        self.name = name
+        self.content = content
+
+    def write(self, out):
+        out.write('''.. type:: {}\n'''.format(self.name))
+        out.write('\n')
+        for line in self.content:
+            out.write('    {}\n'.format(line))
+
+def make_api_ref(infile):
     macros = []
     enums = []
     types = []
     functions = []
-    for infile in infiles:
-        while True:
+    while True:
+        line = infile.readline()
+        if not line:
+            break
+        elif line == '/**\n':
             line = infile.readline()
-            if not line:
-                break
-            elif line == '/**\n':
-                line = infile.readline()
-                doctype = line.split()[1]
-                if doctype == '@function':
-                    functions.append(process_function('function', infile))
-                elif doctype == '@functypedef':
-                    types.append(process_function('type', infile))
-                elif doctype == '@struct' or doctype == '@union':
-                    types.append(process_struct(infile))
-                elif doctype == '@enum':
-                    enums.append(process_enum(infile))
-                elif doctype == '@macro':
-                    macros.append(process_macro(infile))
+            doctype = line.split()[1]
+            if doctype == '@function':
+                functions.append(process_function('function', infile))
+            elif doctype == '@functypedef':
+                types.append(process_function('type', infile))
+            elif doctype == '@struct' or doctype == '@union':
+                types.append(process_struct(infile))
+            elif doctype == '@enum':
+                enums.append(process_enum(infile))
+            elif doctype == '@macro':
+                macros.append(process_macro(infile))
+            elif doctype == '@macrosection':
+                macros.append(process_macrosection(infile))
+            elif doctype == '@typedef':
+                types.append(process_typedef(infile))
     return macros, enums, types, functions
 
-    alldocs = [('Macros', macros),
-               ('Enums', enums),
-               ('Types (structs, unions and typedefs)', types),
-               ('Functions', functions)]
-
 def output(
-        indexfile, macrosfile, enumsfile, typesfile, funcsdir,
+        title, indexfile, macrosfile, enumsfile, typesfile, funcsdir,
         macros, enums, types, functions):
     indexfile.write('''
-API Reference
-=============
+{title}
+{titledecoration}
 
 .. toctree::
    :maxdepth: 1
 
-   macros
-   enums
-   types
-''')
+   {macros}
+   {enums}
+   {types}
+'''.format(
+    title=title, titledecoration='='*len(title),
+    macros=os.path.splitext(os.path.basename(macrosfile.name))[0],
+    enums=os.path.splitext(os.path.basename(enumsfile.name))[0],
+    types=os.path.splitext(os.path.basename(typesfile.name))[0],
+))
 
     for doc in functions:
         indexfile.write('   {}\n'.format(doc.funcname))
@@ -153,9 +200,10 @@ Types (structs, unions and typedefs)
 Synopsis
 --------
 
-*#include <nghttp2/nghttp2.h>*
+*#include <nghttp2/{filename}>*
 
-'''.format(funcname=doc.funcname, secul='='*len(doc.funcname)))
+'''.format(funcname=doc.funcname, secul='='*len(doc.funcname),
+           filename=doc.filename))
             doc.write(f)
 
 def process_macro(infile):
@@ -164,6 +212,17 @@ def process_macro(infile):
     macro_name = line.split()[1]
     return MacroDoc(macro_name, content)
 
+def process_macrosection(infile):
+    content = read_content(infile)
+    return MacroSectionDoc(content)
+
+def process_typedef(infile):
+    content = read_content(infile)
+    typedef = infile.readline()
+    typedef = re.sub(r';\n$', '', typedef)
+    typedef = re.sub(r'typedef ', '', typedef)
+    return TypedefDoc(typedef, content)
+
 def process_enum(infile):
     members = []
     enum_name = None
@@ -176,7 +235,7 @@ def process_enum(infile):
             member_content = read_content(infile)
             line = infile.readline()
             items = line.split()
-            member_name = items[0]
+            member_name = items[0].rstrip(',')
             if len(items) >= 3:
                 member_content.insert(0, '(``{}``) '\
                                       .format(' '.join(items[2:]).rstrip(',')))
@@ -185,7 +244,7 @@ def process_enum(infile):
             enum_name = line.rstrip().split()[1]
             enum_name = re.sub(r';$', '', enum_name)
             break
-    return StructDoc(enum_name, content, members, 'macro')
+    return EnumDoc(enum_name, content, members)
 
 def process_struct(infile):
     members = []
@@ -226,7 +285,9 @@ def process_function(domain, infile):
     func_proto = re.sub(r';\n$', '', func_proto)
     func_proto = re.sub(r'\s+', ' ', func_proto)
     func_proto = re.sub(r'NGHTTP2_EXTERN ', '', func_proto)
-    return FunctionDoc(func_proto, content, domain)
+    func_proto = re.sub(r'typedef ', '', func_proto)
+    filename = os.path.basename(infile.name)
+    return FunctionDoc(func_proto, content, domain, filename)
 
 def read_content(infile):
     content = []
@@ -251,6 +312,8 @@ def transform_content(content):
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description="Generate API reference")
+    parser.add_argument('--title', default='API Reference',
+                        help='title of index page')
     parser.add_argument('index', type=argparse.FileType('w'),
                         help='index output file')
     parser.add_argument('macros', type=argparse.FileType('w'),
@@ -269,12 +332,13 @@ if __name__ == '__main__':
     types = []
     funcs = []
     for infile in args.files:
-        m, e, t, f = make_api_ref(args.files)
+        m, e, t, f = make_api_ref(infile)
         macros.extend(m)
         enums.extend(e)
         types.extend(t)
         funcs.extend(f)
     funcs.sort(key=lambda x: x.funcname)
     output(
+        args.title,
         args.index, args.macros, args.enums, args.types, args.funcsdir,
         macros, enums, types, funcs)

doc/nghttp.1

@@ -1,8 +1,5 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTP" "1" "Oct 24, 2016" "1.16.0" "nghttp2"
-.SH NAME
-nghttp \- HTTP/2 client
 .
 .nr rst2man-indent-level 0
 .
@@ -30,6 +27,9 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
+.TH "NGHTTP" "1" "Nov 13, 2022" "1.51.0" "nghttp2"
+.SH NAME
+nghttp \- HTTP/2 client
 .SH SYNOPSIS
 .sp
 \fBnghttp\fP [OPTIONS]... <URI>...
@@ -236,6 +236,22 @@ combined with the \fI\%\-d\fP option.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-y, \-\-no\-verify\-peer
+Suppress  warning  on  server  certificate  verification
+failure.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-ktls
+Enable ktls.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-no\-rfc7540\-pri
+Disable RFC7540 priorities.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-\-version
 Display version information and exit.
 .UNINDENT

doc/nghttp.1.rst

@@ -186,6 +186,19 @@ OPTIONS
     Continue interim response. This option is ignored unless
     combined with the :option:`-d` option.
 
+.. option:: -y, --no-verify-peer
+
+    Suppress  warning  on  server  certificate  verification
+    failure.
+
+.. option:: --ktls
+
+    Enable ktls.
+
+.. option:: --no-rfc7540-pri
+
+    Disable RFC7540 priorities.
+
 .. option:: --version
 
     Display version information and exit.

doc/nghttpd.1

@@ -1,8 +1,5 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPD" "1" "Oct 24, 2016" "1.16.0" "nghttp2"
-.SH NAME
-nghttpd \- HTTP/2 server
 .
 .nr rst2man-indent-level 0
 .
@@ -30,6 +27,9 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
+.TH "NGHTTPD" "1" "Nov 13, 2022" "1.51.0" "nghttp2"
+.SH NAME
+nghttpd \- HTTP/2 server
 .SH SYNOPSIS
 .sp
 \fBnghttpd\fP [OPTION]... <PORT> [<PRIVATE_KEY> <CERT>]
@@ -204,6 +204,16 @@ Don\(aqt send content\-length header field.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-\-ktls
+Enable ktls.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-no\-rfc7540\-pri
+Disable RFC7540 priorities.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-\-version
 Display version information and exit.
 .UNINDENT

doc/nghttpd.1.rst

@@ -159,6 +159,14 @@ OPTIONS
 
     Don't send content-length header field.
 
+.. option:: --ktls
+
+    Enable ktls.
+
+.. option:: --no-rfc7540-pri
+
+    Disable RFC7540 priorities.
+
 .. option:: --version
 
     Display version information and exit.

doc/nghttpx.h2r

@@ -41,6 +41,33 @@ FILES
   :option:`--conf` option cannot be used in the configuration file and
   will be ignored if specified.
 
+Error log
+  Error log is written to stderr by default.  It can be configured
+  using :option:`--errorlog-file`.  The format of log message is as
+  follows:
+
+  <datetime> <main-pid> <current-pid> <thread-id> <level> (<filename>:<line>) <msg>
+
+  <datetime>
+    It is a combination of date and time when the log is written.  It
+    is in ISO 8601 format.
+
+  <main-pid>
+    It is a main process ID.
+
+  <current-pid>
+    It is a process ID which writes this log.
+
+  <thread-id>
+    It is a thread ID which writes this log.  It would be unique
+    within <current-pid>.
+
+  <filename> and <line>
+    They are source file name, and line number which produce this log.
+
+  <msg>
+    It is a log message body.
+
 SIGNALS
 -------
 
@@ -56,29 +83,33 @@ SIGUSR1
   Reopen log files.
 
 SIGUSR2
+
   Fork and execute nghttpx.  It will execute the binary in the same
-  path with same command-line arguments and environment variables.
-  After new process comes up, sending SIGQUIT to the original process
-  to perform hot swapping.  The difference between SIGUSR2 + SIGQUIT
-  and SIGHUP is that former is usually used to execute new binary, and
-  the master process is newly spawned.  On the other hand, the latter
-  just reloads configuration file, and the same master process
-  continues to exist.
+  path with same command-line arguments and environment variables.  As
+  of nghttpx version 1.20.0, the new main process sends SIGQUIT to the
+  original main process when it is ready to serve requests.  For the
+  earlier versions of nghttpx, user has to send SIGQUIT to the
+  original main process.
+
+  The difference between SIGUSR2 (+ SIGQUIT) and SIGHUP is that former
+  is usually used to execute new binary, and the main process is newly
+  spawned.  On the other hand, the latter just reloads configuration
+  file, and the same main process continues to exist.
 
 .. note::
 
   nghttpx consists of multiple processes: one process for processing
   these signals, and another one for processing requests.  The former
-  spawns the latter.  The former is called master process, and the
+  spawns the latter.  The former is called main process, and the
   latter is called worker process.  If neverbleed is enabled, the
   worker process spawns neverbleed daemon process which does RSA key
-  processing.  The above signal must be sent to the master process.
-  If the other processes received one of them, it is ignored.  This
+  processing.  The above signal must be sent to the main process.  If
+  the other processes received one of them, it is ignored.  This
   behaviour of these processes may change in the future release.  In
-  other words, in the future release, the processes other than master
+  other words, in the future release, the processes other than main
   process may terminate upon the reception of these signals.
   Therefore these signals should not be sent to the processes other
-  than master process.
+  than main process.
 
 SERVER PUSH
 -----------
@@ -140,6 +171,22 @@ be customized using :option:`--fetch-ocsp-response-file` option.
 If OCSP query is failed, previous OCSP response, if any, is continued
 to be used.
 
+:option:`--fetch-ocsp-response-file` option provides wide range of
+possibility to manage OCSP response.  It can take an arbitrary script
+or executable.  The requirement is that it supports the command-line
+interface of ``fetch-ocsp-response`` script, and it must return a
+valid DER encoded OCSP response on success.  It must return exit code
+0 on success, and 75 for temporary error, and the other error code for
+generic failure.  For large cluster of servers, it is not efficient
+for each server to perform OCSP query using ``fetch-ocsp-response``.
+Instead, you can retrieve OCSP response in some way, and store it in a
+disk or a shared database.  Then specify a program in
+:option:`--fetch-ocsp-response-file` to fetch it from those stores.
+This could provide a way to share the OCSP response between fleet of
+servers, and also any OCSP query strategy can be applied which may be
+beyond the ability of nghttpx itself or ``fetch-ocsp-response``
+script.
+
 TLS SESSION RESUMPTION
 ----------------------
 
@@ -153,7 +200,7 @@ By default, session ID is shared by all worker threads.
 
 If :option:`--tls-session-cache-memcached` is given, nghttpx will
 insert serialized session data to memcached with
-``nghttpx:tls-session-cache:`` + lowercased hex string of session ID
+``nghttpx:tls-session-cache:`` + lowercase hex string of session ID
 as a memcached entry key, with expiry time 12 hours.  Session timeout
 is set to 12 hours.
 
@@ -235,6 +282,14 @@ MRUBY SCRIPTING
   The current mruby extension API is experimental and not frozen.  The
   API is subject to change in the future release.
 
+.. warning::
+
+  Almost all string value returned from method, or attribute is a
+  fresh new mruby string, which involves memory allocation, and
+  copies.  Therefore, it is strongly recommended to store a return
+  value in a local variable, and use it, instead of calling method or
+  accessing attribute repeatedly.
+
 nghttpx allows users to extend its capability using mruby scripts.
 nghttpx has 2 hook points to execute mruby script: request phase and
 response phase.  The request phase hook is invoked after all request
@@ -244,9 +299,28 @@ server.  These hooks allows users to modify header fields, or common
 HTTP variables, like authority or request path, and even return custom
 response without forwarding request to backend servers.
 
-To specify mruby script file, use :option:`--mruby-file` option.  The
-script will be evaluated once per thread on startup, and it must
-instantiate object and evaluate it as the return value (e.g.,
+There are 2 levels of mruby script invocations: global and
+per-pattern.  The global mruby script is set by :option:`--mruby-file`
+option and is called for all requests.  The per-pattern mruby script
+is set by "mruby" parameter in :option:`-b` option.  It is invoked for
+a request which matches the particular pattern.  The order of hook
+invocation is: global request phase hook, per-pattern request phase
+hook, per-pattern response phase hook, and finally global response
+phase hook.  If a hook returns a response, any later hooks are not
+invoked.  The global request hook is invoked before the pattern
+matching is made and changing request path may affect the pattern
+matching.
+
+Please note that request and response hooks of per-pattern mruby
+script for a single request might not come from the same script.  This
+might happen after a request hook is executed, backend failed for some
+reason, and at the same time, backend configuration is replaced by API
+request, and then the request uses new configuration on retry.  The
+response hook from new configuration, if it is specified, will be
+invoked.
+
+The all mruby script will be evaluated once per thread on startup, and
+it must instantiate object and evaluate it as the return value (e.g.,
 ``App.new``).  This object is called app object.  If app object
 defines ``on_req`` method, it is called with :rb:class:`Nghttpx::Env`
 object on request hook.  Similarly, if app object defines ``on_resp``
@@ -281,7 +355,7 @@ respectively.
     .. rb:attr_reader:: ctx
 
         Return Ruby hash object.  It persists until request finishes.
-        So values set in request phase hoo can be retrieved in
+        So values set in request phase hook can be retrieved in
         response phase hook.
 
     .. rb:attr_reader:: phase
@@ -313,6 +387,64 @@ respectively.
 
         Return the TLS SNI value which client sent in this connection.
 
+    .. rb:attr_reader:: tls_client_fingerprint_sha256
+
+        Return the SHA-256 fingerprint of a client certificate.
+
+    .. rb:attr_reader:: tls_client_fingerprint_sha1
+
+        Return the SHA-1 fingerprint of a client certificate.
+
+    .. rb:attr_reader:: tls_client_issuer_name
+
+        Return the issuer name of a client certificate.
+
+    .. rb:attr_reader:: tls_client_subject_name
+
+        Return the subject name of a client certificate.
+
+    .. rb:attr_reader:: tls_client_serial
+
+        Return the serial number of a client certificate.
+
+    .. rb:attr_reader:: tls_client_not_before
+
+        Return the start date of a client certificate in seconds since
+        the epoch.
+
+    .. rb:attr_reader:: tls_client_not_after
+
+        Return the end date of a client certificate in seconds since
+        the epoch.
+
+    .. rb:attr_reader:: tls_cipher
+
+        Return a TLS cipher negotiated in this connection.
+
+    .. rb:attr_reader:: tls_protocol
+
+        Return a TLS protocol version negotiated in this connection.
+
+    .. rb:attr_reader:: tls_session_id
+
+        Return a session ID for this connection in hex string.
+
+    .. rb:attr_reader:: tls_session_reused
+
+        Return true if, and only if a SSL/TLS session is reused.
+
+    .. rb:attr_reader:: alpn
+
+        Return ALPN identifier negotiated in this connection.
+
+    .. rb:attr_reader:: tls_handshake_finished
+
+        Return true if SSL/TLS handshake has finished.  If it returns
+        false in the request phase hook, the request is received in
+        TLSv1.3 early data (0-RTT) and might be vulnerable to the
+        replay attack.  nghttpx will send Early-Data header field to
+        backend servers to indicate this.
+
 .. rb:class:: Request
 
     Object to represent request from client.  The modification to
@@ -443,10 +575,10 @@ respectively.
         not be invoked.  When this method is called in response phase
         hook, response from backend server is canceled and discarded.
         The status code and response header fields should be set
-        before using this method.  To set status code, use :rb:meth To
-        set response header fields, use
+        before using this method.  To set status code, use
         :rb:attr:`Nghttpx::Response#status`.  If status code is not
-        set, 200 is used.  :rb:meth:`Nghttpx::Response#add_header` and
+        set, 200 is used.  To set response header fields,
+        :rb:meth:`Nghttpx::Response#add_header` and
         :rb:meth:`Nghttpx::Response#set_header`.  When this method is
         invoked in response phase hook, the response headers are
         filled with the ones received from backend server.  To send
@@ -455,6 +587,18 @@ respectively.
         existing header fields, and then add required header fields.
         It is an error to call this method twice for a given request.
 
+    .. rb:method:: send_info(status, headers)
+
+        Send non-final (informational) response to a client.  *status*
+        must be in the range [100, 199], inclusive.  *headers* is a
+        hash containing response header fields.  Its key must be a
+        string, and the associated value must be either string or
+        array of strings.  Since this is not a final response, even if
+        this method is invoked, request is still forwarded to a
+        backend unless :rb:meth:`Nghttpx::Response#return` is called.
+        This method can be called multiple times.  It cannot be called
+        after :rb:meth:`Nghttpx::Response#return` is called.
+
 MRUBY EXAMPLES
 ~~~~~~~~~~~~~~
 
@@ -516,17 +660,20 @@ status
 code
   HTTP status code
 
+Additionally, depending on the API endpoint, ``data`` key may be
+present, and its value contains the API endpoint specific data.
+
 We wrote "normally", since nghttpx may return ordinal HTML response in
 some cases where the error has occurred before reaching API endpoint
 (e.g., header field is too large).
 
 The following section describes available API endpoints.
 
-PUT /api/v1beta1/backendconfig
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+POST /api/v1beta1/backendconfig
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This API replaces the current backend server settings with the
-requested ones.  The request method should be PUT, but POST is also
+requested ones.  The request method should be POST, but PUT is also
 acceptable.  The request body must be nghttpx configuration file
 format.  For configuration file format, see `FILES`_ section.  The
 line separator inside the request body must be single LF (0x0A).
@@ -542,10 +689,29 @@ The replacement is done instantly without breaking existing
 connections or requests.  It also avoids any process creation as is
 the case with hot swapping with signals.
 
-The one limitation is that only numeric IP address is allowd in
-:option:`backend <--backend>` in request body while non numeric
-hostname is allowed in command-line or configuration file is read
-using :option:`--conf`.
+The one limitation is that only numeric IP address is allowed in
+:option:`backend <--backend>` in request body unless "dns" parameter
+is used while non numeric hostname is allowed in command-line or
+configuration file is read using :option:`--conf`.
+
+GET /api/v1beta1/configrevision
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This API returns configuration revision of the current nghttpx.  The
+configuration revision is opaque string, and it changes after each
+reloading by SIGHUP.  With this API, an external application knows
+that whether nghttpx has finished reloading its configuration by
+comparing the configuration revisions between before and after
+reloading.  It is recommended to disable persistent (keep-alive)
+connection for this purpose in order to avoid to send a request using
+the reused connection which may bound to an old process.
+
+This API returns response including ``data`` key.  Its value is JSON
+object, and it contains at least the following key:
+
+configRevision
+  The configuration revision of the current nghttpx
+
 
 SEE ALSO
 --------

doc/programmers-guide.rst

@@ -6,7 +6,7 @@ Architecture
 
 The most notable point in nghttp2 library architecture is it does not
 perform any I/O.  nghttp2 only performs HTTP/2 protocol stuff based on
-input byte strings.  It will calls callback functions set by
+input byte strings.  It will call callback functions set by
 applications while processing input.  The output of nghttp2 is just
 byte string.  An application is responsible to send these output to
 the remote peer.  The callback functions may be called while producing
@@ -110,13 +110,16 @@ HTTP Messaging
 
 By default, nghttp2 library checks HTTP messaging rules described in
 `HTTP/2 specification, section 8
-<https://tools.ietf.org/html/draft-ietf-httpbis-http2-17#section-8>`_.
-Everything described in that section is not validated however.  We
-briefly describe what the library does in this area.  In the following
+<https://tools.ietf.org/html/rfc7540#section-8>`_.  Everything
+described in that section is not validated however.  We briefly
+describe what the library does in this area.  In the following
 description, without loss of generality we omit CONTINUATION frame
 since they must follow HEADERS frame and are processed atomically.  In
 other words, they are just one big HEADERS frame.  To disable these
-validations, use `nghttp2_option_set_no_http_messaging()`.
+validations, use `nghttp2_option_set_no_http_messaging()`.  Please
+note that disabling this feature does not change the fundamental
+client and server model of HTTP.  That is, even if the validation is
+disabled, only client can send requests.
 
 For HTTP request, including those carried by PUSH_PROMISE, HTTP
 message starts with one HEADERS frame containing request headers.  It
@@ -149,13 +152,11 @@ header fields must not appear: "Connection", "Keep-Alive",
 Each header field name and value must obey the field-name and
 field-value production rules described in `RFC 7230, section
 3.2. <https://tools.ietf.org/html/rfc7230#section-3.2>`_.
-Additionally, all field name must be lower cased.  While the pseudo
-header fields must satisfy these rules, we just ignore illegal regular
-headers (this means that these header fields are not passed to
-application callback).  This is because these illegal header fields
-are floating around in existing internet and resetting stream just
-because of this may break many web sites.  This is especially true if
-we forward to or translate from HTTP/1 traffic.
+Additionally, all field name must be lower cased.  The invalid header
+fields are treated as stream error, and that stream is reset.  If
+application wants to treat these headers in their own way, use
+`nghttp2_on_invalid_header_callback
+<https://nghttp2.org/documentation/types.html#c.nghttp2_on_invalid_header_callback>`_.
 
 For "http" or "https" URIs, ":path" pseudo header fields must start
 with "/".  The only exception is OPTIONS request, in that case, "*" is
@@ -173,6 +174,11 @@ parsed as 64 bit signed integer.  The sum of data length in the
 following DATA frames must match with the number in "Content-Length"
 header field if it is present (this does not include padding bytes).
 
+RFC 7230 says that server must not send "Content-Length" in any
+response with 1xx, and 204 status code.  It also says that
+"Content-Length" is not allowed in any response with 200 status code
+to a CONNECT request.  nghttp2 enforces them as well.
+
 Any deviation results in stream error of type PROTOCOL_ERROR.  If
 error is found in PUSH_PROMISE frame, stream error is raised against
 promised stream.
@@ -243,7 +249,7 @@ set to :type:`nghttp2_session_callbacks` using
 `nghttp2_session_callbacks_set_pack_extension_callback()`.
 
 For example, we will illustrate how to send `ALTSVC
-<https://tools.ietf.org/html/draft-ietf-httpbis-alt-svc-14>`_ frame.
+<https://tools.ietf.org/html/rfc7838>`_ frame.
 
 .. code-block:: c
 
@@ -473,3 +479,48 @@ its creation, like so:
 When ALTSVC is received, :type:`nghttp2_on_frame_recv_callback` will
 be called as usual.
 
+Stream priorities
+-----------------
+
+By default, the stream prioritization scheme described in :rfc:`7540`
+is used.  This scheme has been formally deprecated by :rfc:`9113`.  In
+order to disable it, send
+:enum:`nghttp2_settings_id.NGHTTP2_SETTINGS_NO_RFC7540_PRIORITIES` of
+value of 1 via `nghttp2_submit_settings()`.  This settings ID is
+defined by :rfc:`9218`.  The sender of this settings value disables
+RFC 7540 priorities, and instead it enables RFC 9218 Extensible
+Prioritization Scheme.  This new prioritization scheme has 2 methods
+to convey the stream priorities to a remote endpoint: Priority header
+field and PRIORITY_UPDATE frame.  nghttp2 supports both methods.  In
+order to receive and process PRIORITY_UPDATE frame, server has to call
+``nghttp2_option_set_builtin_recv_extension_type(option,
+NGHTTP2_PRIORITY_UPDATE)`` (see the above section), and pass the
+option to `nghttp2_session_server_new2()` or
+`nghttp2_session_server_new3()` to create a server session.  Client
+can send Priority header field via `nghttp2_submit_request()`.  It can
+also send PRIORITY_UPDATE frame via
+`nghttp2_submit_priority_update()`.  Server processes Priority header
+field in a request header field and updates the stream priority unless
+HTTP messaging rule enforcement is disabled (see
+`nghttp2_option_set_no_http_messaging()`).
+
+For the purpose of smooth migration from RFC 7540 priorities, client
+is advised to send
+:enum:`nghttp2_settings_id.NGHTTP2_SETTINGS_NO_RFC7540_PRIORITIES` of
+value of 1.  Until it receives the first server SETTINGS frame, it can
+send both RFC 7540 and RFC 9128 priority signals.  If client receives
+SETTINGS_NO_RFC7540_PRIORITIES of value of 0, or it is omitted ,
+client stops sending PRIORITY_UPDATE frame.  Priority header field
+will be sent in anyway since it is an end-to-end signal.  If
+SETTINGS_NO_RFC7540_PRIORITIES of value of 1 is received, client stops
+sending RFC 7540 priority signals.  This is the advice described in
+:rfc:`9218#section-2.1.1`.
+
+Server has an optional mechanism to fallback to RFC 7540 priorities.
+By default, if server sends SETTINGS_NO_RFC7540_PRIORITIES of value of
+1, it completely disables RFC 7540 priorities and no fallback.  By
+setting nonzero value to
+`nghttp2_option_set_server_fallback_rfc7540_priorities()`, server
+falls back to RFC 7540 priorities if it sends
+SETTINGS_NO_RFC7540_PRIORITIES value of value of 1, and client omits
+SETTINGS_NO_RFC7540_PRIORITIES in its SETTINGS frame.

doc/python-apiref.rst.in

@@ -1 +0,0 @@
-.. include:: @top_srcdir@/doc/sources/python-apiref.rst

doc/security.rst

@@ -0,0 +1 @@
+.. include:: ../doc/sources/security.rst

doc/sources/building-android-binary.rst

@@ -2,51 +2,39 @@ Building Android binary
 =======================
 
 In this article, we briefly describe how to build Android binary using
-`Android NDK <http://developer.android.com/tools/sdk/ndk/index.html>`_
-cross-compiler on Debian Linux.
+`Android NDK <https://developer.android.com/ndk>`_ cross-compiler on
+Debian Linux.
 
 The easiest way to build android binary is use Dockerfile.android.
 See Dockerfile.android for more details.  If you cannot use
 Dockerfile.android for whatever reason, continue to read the rest of
 this article.
 
-We offer ``android-config`` and ``android-make`` scripts to make the
-build easier.  To make these script work, NDK toolchain must be
-installed in the following way.  First, let us introduce
-``ANDROID_HOME`` environment variable.  We need to install toolchain
-under ``$ANDROID_HOME/toolchain``.  An user can freely choose the path
-for ``ANDROID_HOME``.  For example, to install toolchain under
-``$ANDROID_HOME/toolchain``, do this in the the directory where NDK is
-unpacked:
+We offer ``android-config`` script to make the build easier.  To make
+the script work, NDK directory must be set to ``NDK`` environment
+variable.  NDK directory is the directory where NDK is unpacked:
 
 .. code-block:: text
 
-    $ build/tools/make_standalone_toolchain.py \
-      --arch arm --api 16 --stl gnustl
-      --install-dir $ANDROID_HOME/toolchain
+    $ unzip android-ndk-$NDK_VERSION-linux.zip
+    $ cd android-ndk-$NDK_VERSION
+    $ export NDK=$PWD
 
-The API level (``--api``) is not important here because we don't use
-Android specific C/C++ API.
-
-The dependent libraries, such as OpenSSL and libev should be built
-with the toolchain and installed under ``$ANDROID_HOME/usr/local``.
-We recommend to build these libraries as static library to make the
-deployment easier.  libxml2 support is currently disabled.
+The dependent libraries, such as OpenSSL, libev, and c-ares should be
+built with the same NDK toolchain and installed under
+``$NDK/usr/local``.  We recommend to build these libraries as static
+library to make the deployment easier.  libxml2 support is currently
+disabled.
 
 Although zlib comes with Android NDK, it seems not to be a part of
 public API, so we have to built it for our own.  That also provides us
 proper .pc file as a bonus.
 
-If SPDY support is required for nghttpx and h2load, build and install
-spdylay as well.
+Before running ``android-config``, ``NDK`` environment variable must
+be set to point to the correct path.
 
-Before running ``android-config`` and ``android-make``,
-``ANDROID_HOME`` environment variable must be set to point to the
-correct path.  Also add ``$ANDROID_HOME/toolchain/bin`` to ``PATH``:
-
-.. code-block:: text
-
-    $ export PATH=$PATH:$ANDROID_HOME/toolchain/bin
+You need to set ``NGHTTP2`` environment variable to the absolute path
+to the source directory of nghttp2.
 
 To configure OpenSSL, use the following script:
 
@@ -54,39 +42,36 @@ To configure OpenSSL, use the following script:
 
     #!/bin/sh
 
-    if [ -z "$ANDROID_HOME" ]; then
-        echo 'No $ANDROID_HOME specified.'
-        exit 1
-    fi
-    PREFIX=$ANDROID_HOME/usr/local
-    TOOLCHAIN=$ANDROID_HOME/toolchain
-    PATH=$TOOLCHAIN/bin:$PATH
+    . $NGHTTP2/android-env
 
-    export CROSS_COMPILE=$TOOLCHAIN/bin/arm-linux-androideabi-
-    ./Configure --prefix=$PREFIX android
+    export ANDROID_NDK_HOME=$NDK
+    export PATH=$TOOLCHAIN/bin:$PATH
 
-And run ``make install_sw`` to build and install without
-documentation.
+    ./Configure no-shared --prefix=$PREFIX android-arm64
 
-We cannot compile libev without modification.  Apply `this patch
-<https://gist.github.com/tatsuhiro-t/48c45f08950f587180ed>`_ before
-configuring libev.  This patch is for libev-4.19.  After applying the
-patch, to configure libev, use the following script:
+And run the following script to build and install without
+documentation:
 
 .. code-block:: sh
 
     #!/bin/sh
 
-    if [ -z "$ANDROID_HOME" ]; then
-        echo 'No $ANDROID_HOME specified.'
-        exit 1
-    fi
-    PREFIX=$ANDROID_HOME/usr/local
-    TOOLCHAIN=$ANDROID_HOME/toolchain
-    PATH=$TOOLCHAIN/bin:$PATH
+    . $NGHTTP2/android-env
+
+    export PATH=$TOOLCHAIN/bin:$PATH
+
+    make install_sw
+
+To configure libev, use the following script:
+
+.. code-block:: sh
+
+    #!/bin/sh
+
+    . $NGHTTP2/android-env
 
     ./configure \
-        --host=arm-linux-androideabi \
+        --host=$TARGET \
         --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
         --prefix=$PREFIX \
         --disable-shared \
@@ -96,27 +81,32 @@ patch, to configure libev, use the following script:
 
 And run ``make install`` to build and install.
 
+To configure c-ares, use the following script:
+
+.. code-block:: sh
+
+    #!/bin/sh -e
+
+    . $NGHTTP2/android-env
+
+    ./configure \
+        --host=$TARGET \
+        --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
+        --prefix=$PREFIX \
+        --disable-shared
+
+And run ``make install`` to build and install.
+
 To configure zlib, use the following script:
 
 .. code-block:: sh
 
     #!/bin/sh -e
 
-    if [ -z "$ANDROID_HOME" ]; then
-        echo 'No $ANDROID_HOME specified.'
-        exit 1
-    fi
-    PREFIX=$ANDROID_HOME/usr/local
-    TOOLCHAIN=$ANDROID_HOME/toolchain
-    PATH=$TOOLCHAIN/bin:$PATH
+    . $NGHTTP2/android-env
 
-    HOST=arm-linux-androideabi
+    export HOST=$TARGET
 
-    CC=$HOST-gcc \
-    AR=$HOST-ar \
-    LD=$HOST-ld \
-    RANLIB=$HOST-ranlib \
-    STRIP=$HOST-strip \
     ./configure \
         --prefix=$PREFIX \
         --libdir=$PREFIX/lib \
@@ -125,36 +115,8 @@ To configure zlib, use the following script:
 
 And run ``make install`` to build and install.
 
-To configure spdylay, use the following script:
-
-.. code-block:: sh
-
-    #!/bin/sh -e
-
-    if [ -z "$ANDROID_HOME" ]; then
-        echo 'No $ANDROID_HOME specified.'
-        exit 1
-    fi
-    PREFIX=$ANDROID_HOME/usr/local
-    TOOLCHAIN=$ANDROID_HOME/toolchain
-    PATH=$TOOLCHAIN/bin:$PATH
-
-    ./configure \
-        --disable-shared \
-        --host=arm-linux-androideabi \
-        --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
-        --prefix=$PREFIX \
-        --without-libxml2 \
-        --disable-src \
-        --disable-examples \
-        CPPFLAGS="-I$PREFIX/include" \
-        PKG_CONFIG_LIBDIR="$PREFIX/lib/pkgconfig" \
-        LDFLAGS="-L$PREFIX/lib"
-
-And run ``make install`` to build and install.
-
 After prerequisite libraries are prepared, run ``android-config`` and
-then ``android-make`` to compile nghttp2 source files.
+then ``make`` to compile nghttp2 source files.
 
 If all went well, application binaries, such as nghttpx, are created
 under src directory.  Strip debugging information from the binary
@@ -162,4 +124,4 @@ using the following command:
 
 .. code-block:: text
 
-    $ arm-linux-androideabi-strip src/nghttpx
+    $ $NDK/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip src/nghttpx

doc/sources/contribute.rst

@@ -26,8 +26,7 @@ Coding style
 We use clang-format to format source code consistently.  The
 clang-format configuration file .clang-format is located at the root
 directory.  Since clang-format produces slightly different results
-between versions, we currently use clang-format which comes with
-clang-3.9.
+between versions, we currently use clang-format-14.
 
 To detect any violation to the coding style, we recommend to setup git
 pre-commit hook to check coding style of the changes you introduced.
@@ -35,13 +34,13 @@ The pre-commit file is located at the root directory.  Copy it under
 .git/hooks and make sure that it is executable.  The pre-commit script
 uses clang-format-diff.py to detect any style errors.  If it is not in
 your PATH or it exists under different name (e.g.,
-clang-format-diff-3.9 in debian), either add it to PATH variable or
-add git option ``clangformatdiff.binary`` to point to the script.
+clang-format-diff-14 in debian), either add it to PATH variable or add
+git option ``clangformatdiff.binary`` to point to the script.
 
 For emacs users, integrating clang-format to emacs is very easy.
 clang-format.el should come with clang distribution.  If it is not
 found, download it from `here
-<https://llvm.org/svn/llvm-project/cfe/trunk/tools/clang-format/clang-format.el>`_.
+<https://github.com/llvm/llvm-project/blob/main/clang/tools/clang-format/clang-format.el>`_.
 And add these lines to your .emacs file:
 
 .. code-block:: lisp

doc/sources/h2load-howto.rst

@@ -3,16 +3,14 @@
 h2load - HTTP/2 benchmarking tool - HOW-TO
 ==========================================
 
-:doc:`h2load.1` is benchmarking tool for HTTP/2 and HTTP/1.1.  If
-built with spdylay (http://tatsuhiro-t.github.io/spdylay/) library, it
-also supports SPDY protocol.  It supports SSL/TLS and clear text for
-all supported protocols.
+:doc:`h2load.1` is benchmarking tool for HTTP/2 and HTTP/1.1.  It
+supports SSL/TLS and clear text for all supported protocols.
 
 Compiling from source
 ---------------------
 
 h2load is compiled alongside nghttp2 and requires that the
-``--enable-apps`` flag is passed to ``./configure`` and `required
+``--enable-app`` flag is passed to ``./configure`` and `required
 dependencies <https://github.com/nghttp2/nghttp2#requirements>`_ are
 available during compilation. For details on compiling, see `nghttp2:
 Building from Git
@@ -64,23 +62,40 @@ The benchmarking result looks like this:
 See the h2load manual page :ref:`h2load-1-output` section for the
 explanation of the above numbers.
 
+Timing-based load-testing
+-------------------------
+
+As of v1.26.0, h2load supports timing-based load-testing.  This method
+performs load-testing in terms of a given duration instead of a
+pre-defined number of requests. The new option :option:`--duration`
+specifies how long the load-testing takes. For example,
+``--duration=10`` makes h2load perform load-testing against a server
+for 10 seconds. You can also specify a “warming-up” period with
+:option:`--warm-up-time`. If :option:`--duration` is used,
+:option:`-n` option is ignored.
+
+The following command performs load-testing for 10 seconds after 5
+seconds warming up period:
+
+.. code-block:: text
+
+    $ h2load -c100 -m100 --duration=10 --warm-up-time=5 https://localhost
+
 Flow Control
 ------------
 
-HTTP/2 and SPDY/3 or later employ flow control and it may affect
-benchmarking results.  By default, h2load uses large enough flow
-control window, which effectively disables flow control.  To adjust
-receiver flow control window size, there are following options:
+HTTP/2 has flow control and it may affect benchmarking results.  By
+default, h2load uses large enough flow control window, which
+effectively disables flow control.  To adjust receiver flow control
+window size, there are following options:
 
 :option:`-w`
    Sets  the stream  level  initial  window size  to
-   (2**<N>)-1.  For SPDY, 2**<N> is used instead.
+   (2**<N>)-1.
 
 :option:`-W`
    Sets the connection level  initial window size to
-   (2**<N>)-1.  For  SPDY, if  <N> is  strictly less
-   than  16,  this  option  is  ignored.   Otherwise
-   2**<N> is used for SPDY.
+   (2**<N>)-1.
 
 Multi-Threading
 ---------------
@@ -116,3 +131,12 @@ specify ``unix:`` followed by the path to UNIX domain socket.  For
 example, if UNIX domain socket is ``/tmp/nghttpx.sock``, use
 ``--base-uri=unix:/tmp/nghttpx.sock``.  h2load uses scheme, host and
 port in the first URI in command-line or input file.
+
+HTTP/3
+------
+
+h2load supports HTTP/3 if it is built with HTTP/3 enabled.  HTTP/3
+support is experimental.
+
+In order to send HTTP/3 request, specify ``h3`` to
+:option:`--npn-list`.

doc/sources/index.rst

@@ -1,4 +1,4 @@
-.. nghttp2 documentation master file, created by
+.. nghttp2 documentation main file, created by
    sphinx-quickstart on Sun Mar 11 22:57:49 2012.
    You can adapt this file completely to your liking, but it should at least
    contain the root `toctree` directive.
@@ -18,6 +18,7 @@ Contents:
 
    package_README
    contribute
+   security
    building-android-binary
    tutorial-client
    tutorial-server
@@ -30,13 +31,8 @@ Contents:
    h2load-howto
    programmers-guide
    apiref
-   libnghttp2_asio
-   python-apiref
    nghttp2.h
    nghttp2ver.h
-   asio_http2_server.h
-   asio_http2_client.h
-   asio_http2.h
    Source <https://github.com/nghttp2/nghttp2>
    Issues <https://github.com/nghttp2/nghttp2/issues>
    nghttp2.org <https://nghttp2.org/>

doc/sources/libnghttp2_asio.rst

@@ -1,433 +0,0 @@
-libnghttp2_asio: High level HTTP/2 C++ library
-==============================================
-
-libnghttp2_asio is C++ library built on top of libnghttp2 and provides
-high level abstraction API to build HTTP/2 applications.  It depends
-on Boost::ASIO library and OpenSSL.  Currently libnghttp2_asio
-provides server and client side API.
-
-libnghttp2_asio is not built by default.  Use ``--enable-asio-lib``
-configure flag to build libnghttp2_asio.  The required Boost libraries
-are:
-
-* Boost::Asio
-* Boost::System
-* Boost::Thread
-
-We have 3 header files for this library:
-
-* :doc:`asio_http2_server.h`
-* :doc:`asio_http2_client.h`
-* :doc:`asio_http2.h`
-
-asio_http2.h is included from the other two files.
-
-To build a program with libnghttp2_asio, link to the following
-libraries::
-
-    -lnghttp2_asio -lboost_system
-
-If ``boost::asio::ssl`` is used in application code, OpenSSL is also
-required in link line::
-
-    -lnghttp2_asio -lboost_system -lssl -lcrypto
-
-Server API
-----------
-
-To use server API, first include following header file:
-
-.. code-block:: cpp
-
-    #include <nghttp2/asio_http2_server.h>
-
-Also take a look at that header file :doc:`asio_http2_server.h`.
-
-Server API is designed to build HTTP/2 server very easily to utilize
-C++11 anonymous function and closure.  The bare minimum example of
-HTTP/2 server looks like this:
-
-.. code-block:: cpp
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::server;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      http2 server;
-
-      server.handle("/", [](const request &req, const response &res) {
-        res.write_head(200);
-        res.end("hello, world\n");
-      });
-
-      if (server.listen_and_serve(ec, "localhost", "3000")) {
-        std::cerr << "error: " << ec.message() << std::endl;
-      }
-    }
-
-First we instantiate ``nghttp2::asio_http2::server::http2`` object.
-``nghttp2::asio_http2::server::http2::handle`` function registers
-pattern and its handler function.  In this example, we register "/" as
-pattern, which matches all requests.  Then call
-``nghttp2::asio_http2::server::http2::listen_and_serve`` function with
-address and port to listen to.
-
-The ``req`` and ``res`` represent HTTP request and response
-respectively.  ``nghttp2::asio_http2_::server::response::write_head``
-constructs HTTP response header fields.  The first argument is HTTP
-status code, in the above example, which is 200.  The second argument,
-which is omitted in the above example, is additional header fields to
-send.
-
-``nghttp2::asio_http2::server::response::end`` sends response body.
-In the above example, we send string "hello, world".
-
-The life time of req and res object ends after the callback set by
-``nghttp2::asio_http2::server::response::on_close`` function.
-Application must not use those objects after this call.
-
-Serving static files and enabling SSL/TLS
-+++++++++++++++++++++++++++++++++++++++++
-
-In this example, we serve a couple of static files and also enable
-SSL/TLS.
-
-.. code-block:: cpp
-
-    #include <nghttp2/asio_http2_server.h>
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::server;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      boost::asio::ssl::context tls(boost::asio::ssl::context::sslv23);
-
-      tls.use_private_key_file("server.key", boost::asio::ssl::context::pem);
-      tls.use_certificate_chain_file("server.crt");
-
-      configure_tls_context_easy(ec, tls);
-
-      http2 server;
-
-      server.handle("/index.html", [](const request &req, const response &res) {
-        res.write_head(200);
-        res.end(file_generator("index.html"));
-      });
-
-      if (server.listen_and_serve(ec, tls, "localhost", "3000")) {
-        std::cerr << "error: " << ec.message() << std::endl;
-      }
-    }
-
-We first create ``boost::asio::ssl::context`` object and set path to
-private key file and certificate file.
-``nghttp2::asio_http2::server::configure_tls_context_easy`` function
-configures SSL/TLS context object for HTTP/2 server use, including NPN
-callbacks.
-
-In the above example, if request path is "/index.html", we serve
-index.html file in the current working directory.
-``nghttp2::asio_http2::server::response::end`` has overload to take
-function of type ``nghttp2::asio_http2::generator_cb`` and application
-pass its implementation to generate response body.  For the
-convenience, libnghttp2_asio library provides
-``nghttp2::asio_http2::file_generator`` function to generate function
-to server static file.  If other resource is requested, server
-automatically responds with 404 status code.
-
-Server push
-+++++++++++
-
-Server push is also supported.
-
-.. code-block:: cpp
-
-    #include <nghttp2/asio_http2_server.h>
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::server;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      boost::asio::ssl::context tls(boost::asio::ssl::context::sslv23);
-
-      tls.use_private_key_file("server.key", boost::asio::ssl::context::pem);
-      tls.use_certificate_chain_file("server.crt");
-
-      configure_tls_context_easy(ec, tls);
-
-      http2 server;
-
-      std::string style_css = "h1 { color: green; }";
-
-      server.handle("/", [&style_css](const request &req, const response &res) {
-        boost::system::error_code ec;
-        auto push = res.push(ec, "GET", "/style.css");
-        push->write_head(200);
-        push->end(style_css);
-
-        res.write_head(200);
-        res.end(R"(
-    <!DOCTYPE html><html lang="en">
-    <title>HTTP/2 FTW</title><body>
-    <link href="/style.css" rel="stylesheet" type="text/css">
-    <h1>This should be green</h1>
-    </body></html>
-    )");
-      });
-
-      server.handle("/style.css",
-                    [&style_css](const request &req, const response &res) {
-        res.write_head(200);
-        res.end(style_css);
-      });
-
-      if (server.listen_and_serve(ec, tls, "localhost", "3000")) {
-        std::cerr << "error: " << ec.message() << std::endl;
-      }
-    }
-
-When client requested any resource other than "/style.css", we push
-"/style.css".  To push resource, call
-``nghttp2::asio_http2::server::response::push`` function with desired
-method and path.  It returns another response object and use its
-functions to send push response.
-
-Enable multi-threading
-++++++++++++++++++++++
-
-Enabling multi-threading is very easy.  Just call
-``nghttp2::asio_http2::server::http2::num_threads`` function with the
-desired number of threads:
-
-.. code-block:: cpp
-
-    http2 server;
-
-    // Use 4 native threads
-    server.num_threads(4);
-
-Client API
-----------
-
-To use client API, first include following header file:
-
-.. code-block:: cpp
-
-    #include <nghttp2/asio_http2_client.h>
-
-Also take a look at that header file :doc:`asio_http2_client.h`.
-
-Here is the sample client code to access HTTP/2 server and print out
-response header fields and response body to the console screen:
-
-.. code-block:: cpp
-
-    #include <iostream>
-
-    #include <nghttp2/asio_http2_client.h>
-
-    using boost::asio::ip::tcp;
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::client;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      boost::asio::io_service io_service;
-
-      // connect to localhost:3000
-      session sess(io_service, "localhost", "3000");
-
-      sess.on_connect([&sess](tcp::resolver::iterator endpoint_it) {
-	boost::system::error_code ec;
-
-	auto req = sess.submit(ec, "GET", "http://localhost:3000/");
-
-	req->on_response([](const response &res) {
-	  // print status code and response header fields.
-	  std::cerr << "HTTP/2 " << res.status_code() << std::endl;
-	  for (auto &kv : res.header()) {
-	    std::cerr << kv.first << ": " << kv.second.value << "\n";
-	  }
-	  std::cerr << std::endl;
-
-	  res.on_data([](const uint8_t *data, std::size_t len) {
-	    std::cerr.write(reinterpret_cast<const char *>(data), len);
-	    std::cerr << std::endl;
-	  });
-	});
-
-	req->on_close([&sess](uint32_t error_code) {
-	  // shutdown session after first request was done.
-	  sess.shutdown();
-	});
-      });
-
-      sess.on_error([](const boost::system::error_code &ec) {
-	std::cerr << "error: " << ec.message() << std::endl;
-      });
-
-      io_service.run();
-    }
-
-``nghttp2::asio_http2::client::session`` object takes
-``boost::asio::io_service`` object and remote server address.  When
-connection is made, the callback function passed to
-``nghttp2::asio_http2::client::on_connect`` is invoked with connected
-address as its parameter.  After this callback call, use
-``nghttp2::asio_http2::session::submit`` to send request to the
-server.  You can submit multiple requests at once without waiting for
-the completion of previous request.
-
-The life time of req and res object ends after the callback set by
-``nghttp2::asio_http2::server::request::on_close`` function.
-Application must not use those objects after this call.
-
-Normally, client does not stop even after all requests are done unless
-connection is lost.  To stop client, call
-``nghttp2::asio_http2::server::session::shutdown()``.
-
-Recieve server push and enable SSL/TLS
-++++++++++++++++++++++++++++++++++++++
-
-.. code-block:: cpp
-
-    #include <iostream>
-
-    #include <nghttp2/asio_http2_client.h>
-
-    using boost::asio::ip::tcp;
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::client;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      boost::asio::io_service io_service;
-
-      boost::asio::ssl::context tls(boost::asio::ssl::context::sslv23);
-      tls.set_default_verify_paths();
-      // disabled to make development easier...
-      // tls_ctx.set_verify_mode(boost::asio::ssl::verify_peer);
-      configure_tls_context(ec, tls);
-
-      // connect to localhost:3000
-      session sess(io_service, tls, "localhost", "3000");
-
-      sess.on_connect([&sess](tcp::resolver::iterator endpoint_it) {
-	boost::system::error_code ec;
-
-	auto req = sess.submit(ec, "GET", "http://localhost:3000/");
-
-	req->on_response([&sess](const response &res) {
-	  std::cerr << "response received!" << std::endl;
-	  res.on_data([&sess](const uint8_t *data, std::size_t len) {
-	    std::cerr.write(reinterpret_cast<const char *>(data), len);
-	    std::cerr << std::endl;
-	  });
-	});
-
-	req->on_push([](const request &push) {
-	  std::cerr << "push request received!" << std::endl;
-	  push.on_response([](const response &res) {
-	    std::cerr << "push response received!" << std::endl;
-	    res.on_data([](const uint8_t *data, std::size_t len) {
-	      std::cerr.write(reinterpret_cast<const char *>(data), len);
-	      std::cerr << std::endl;
-	    });
-	  });
-	});
-      });
-
-      sess.on_error([](const boost::system::error_code &ec) {
-	std::cerr << "error: " << ec.message() << std::endl;
-      });
-
-      io_service.run();
-    }
-
-The above sample code demonstrates how to enable SSL/TLS and receive
-server push.  Currently,
-``nghttp2::asio_http2::client::configure_tls_context`` function setups
-NPN callbacks for SSL/TLS context for HTTP/2 use.
-
-To receive server push, use
-``nghttp2::asio_http2::client::request::on_push`` function to set
-callback function which is invoked when server push request is
-arrived.  The callback function takes
-``nghttp2::asio_http2::client::request`` object, which contains the
-pushed request.  To get server push response, set callback using
-``nghttp2::asio_http2::client::request::on_response``.
-
-As stated in the previous section, client does not stop automatically
-as long as HTTP/2 session is fine and connection is alive.  We don't
-call ``nghttp2::asio_http2::client::session::shutdown`` in this
-example, so the program does not terminate after all responses are
-received.  Hit Ctrl-C to terminate the program.
-
-Multiple concurrent requests
-++++++++++++++++++++++++++++
-
-.. code-block:: cpp
-
-    #include <iostream>
-
-    #include <nghttp2/asio_http2_client.h>
-
-    using boost::asio::ip::tcp;
-
-    using namespace nghttp2::asio_http2;
-    using namespace nghttp2::asio_http2::client;
-
-    int main(int argc, char *argv[]) {
-      boost::system::error_code ec;
-      boost::asio::io_service io_service;
-
-      // connect to localhost:3000
-      session sess(io_service, "localhost", "3000");
-
-      sess.on_connect([&sess](tcp::resolver::iterator endpoint_it) {
-	boost::system::error_code ec;
-
-	auto printer = [](const response &res) {
-	  res.on_data([](const uint8_t *data, std::size_t len) {
-	    std::cerr.write(reinterpret_cast<const char *>(data), len);
-	    std::cerr << std::endl;
-	  });
-	};
-
-	std::size_t num = 3;
-	auto count = std::make_shared<int>(num);
-
-	for (std::size_t i = 0; i < num; ++i) {
-	  auto req = sess.submit(ec, "GET",
-				 "http://localhost:3000/" + std::to_string(i + 1));
-
-	  req->on_response(printer);
-	  req->on_close([&sess, count](uint32_t error_code) {
-	    if (--*count == 0) {
-	      // shutdown session after |num| requests were done.
-	      sess.shutdown();
-	    }
-	  });
-	}
-      });
-
-      sess.on_error([](const boost::system::error_code &ec) {
-	std::cerr << "error: " << ec.message() << std::endl;
-      });
-
-      io_service.run();
-    }
-
-Here is the sample to send 3 requests at once.  Depending on the
-server settings, these requests are processed out-of-order.  In this
-example, we have a trick to shutdown session after all requests were
-done.  We made ``count`` object which is shared pointer to int and is
-initialized to 3.  On each request closure (the invocation of the
-callback set by ``nghttp2::asio_http2::client::request::on_close``),
-we decrement the count.  If count becomes 0, we are sure that all
-requests have been done and initiate shutdown.

doc/sources/nghttpx-howto.rst

@@ -4,20 +4,18 @@ nghttpx - HTTP/2 proxy - HOW-TO
 ===============================
 
 :doc:`nghttpx.1` is a proxy translating protocols between HTTP/2 and
-other protocols (e.g., HTTP/1, SPDY).  It operates in several modes
-and each mode may require additional programs to work with.  This
-article describes each operation mode and explains the intended
-use-cases.  It also covers some useful options later.
+other protocols (e.g., HTTP/1).  It operates in several modes and each
+mode may require additional programs to work with.  This article
+describes each operation mode and explains the intended use-cases.  It
+also covers some useful options later.
 
 Default mode
 ------------
 
 If nghttpx is invoked without :option:`--http2-proxy`, it operates in
 default mode.  In this mode, it works as reverse proxy (gateway) for
-both HTTP/2 and HTTP/1 clients to backend servers.  This is also known
-as "HTTP/2 router".  If nghttpx is linked with spdylay library and
-frontend connection is SSL/TLS, the frontend also supports SPDY
-protocol.
+HTTP/3, HTTP/2 and HTTP/1 clients to backend servers.  This is also
+known as "HTTP/2 router".
 
 By default, frontend connection is encrypted using SSL/TLS.  So
 server's private key and certificate must be supplied to the command
@@ -25,11 +23,13 @@ line (or through configuration file).  In this case, the frontend
 protocol selection will be done via ALPN or NPN.
 
 To turn off encryption on frontend connection, use ``no-tls`` keyword
-in :option:`--frontend` option.  In this case, SPDY protocol is not
-available even if spdylay library is liked to nghttpx.  HTTP/2 and
-HTTP/1 are available on the frontend, and an HTTP/1 connection can be
-upgraded to HTTP/2 using HTTP Upgrade.  Starting HTTP/2 connection by
-sending HTTP/2 connection preface is also supported.
+in :option:`--frontend` option.  HTTP/2 and HTTP/1 are available on
+the frontend, and an HTTP/1 connection can be upgraded to HTTP/2 using
+HTTP Upgrade.  Starting HTTP/2 connection by sending HTTP/2 connection
+preface is also supported.
+
+In order to receive HTTP/3 traffic, use ``quic`` parameter in
+:option:`--frontend` option (.e.g, ``--frontend='*,443;quic'``)
 
 nghttpx can listen on multiple frontend addresses.  This is achieved
 by using multiple :option:`--frontend` options.  For each frontend
@@ -45,17 +45,17 @@ that default backend protocol is HTTP/1.1.  To use HTTP/2 in backend,
 you have to specify ``h2`` in ``proto`` keyword in :option:`--backend`
 explicitly.
 
-The backend is supposed to be Web server.  For example, to make
+The backend is supposed to be a Web server.  For example, to make
 nghttpx listen to encrypted HTTP/2 requests at port 8443, and a
-backend Web server is configured to listen to HTTP request at port
-8080 in the same host, run nghttpx command-line like this:
+backend Web server is configured to listen to HTTP requests at port
+8080 on the same host, run nghttpx command-line like this:
 
 .. code-block:: text
 
     $ nghttpx -f0.0.0.0,8443 -b127.0.0.1,8080 /path/to/server.key /path/to/server.crt
 
-Then HTTP/2 enabled client can access to the nghttpx in HTTP/2.  For
-example, you can send GET request to the server using nghttp:
+Then an HTTP/2 enabled client can access the nghttpx server using HTTP/2.  For
+example, you can send a GET request using nghttp:
 
 .. code-block:: text
 
@@ -66,19 +66,18 @@ HTTP/2 proxy mode
 
 If nghttpx is invoked with :option:`--http2-proxy` (or its shorthand
 :option:`-s`) option, it operates in HTTP/2 proxy mode.  The supported
-protocols in frontend and backend connections are the same in `default
-mode`_.  The difference is that this mode acts like forward proxy and
-assumes the backend is HTTP proxy server (e.g., Squid, Apache Traffic
-Server).  HTTP/1 request must include absolute URI in request line.
+protocols in frontend and backend connections are the same as in `default
+mode`_.  The difference is that this mode acts like a forward proxy and
+assumes the backend is an HTTP proxy server (e.g., Squid, Apache Traffic
+Server).  HTTP/1 requests must include an absolute URI in request line.
 
-By default, frontend connection is encrypted.  So this mode is also
-called secure proxy.  If nghttpx is linked with spdylay, it supports
-SPDY protocols and it works as so called SPDY proxy.
+By default, the frontend connection is encrypted.  So this mode is
+also called secure proxy.
 
-To turn off encryption on frontend connection, use ``no-tls`` keyword
+To turn off encryption on the frontend connection, use ``no-tls`` keyword
 in :option:`--frontend` option.
 
-The backend must be HTTP proxy server.  nghttpx supports multiple
+The backend must be an HTTP proxy server.  nghttpx supports multiple
 backend server addresses.  It translates incoming requests to HTTP
 request to backend server.  The backend server performs real proxy
 work for each request, for example, dispatching requests to the origin
@@ -92,7 +91,7 @@ connection, use :option:`--backend` option, and specify ``h2`` in
 
 For example, to make nghttpx listen to encrypted HTTP/2 requests at
 port 8443, and a backend HTTP proxy server is configured to listen to
-HTTP/1 request at port 8080 in the same host, run nghttpx command-line
+HTTP/1 requests at port 8080 on the same host, run nghttpx command-line
 like this:
 
 .. code-block:: text
@@ -102,8 +101,8 @@ like this:
 At the time of this writing, Firefox 41 and Chromium v46 can use
 nghttpx as HTTP/2 proxy.
 
-To make Firefox or Chromium use nghttpx as HTTP/2 or SPDY proxy, user
-has to create proxy.pac script file like this:
+To make Firefox or Chromium use nghttpx as HTTP/2 proxy, user has to
+create proxy.pac script file like this:
 
 .. code-block:: javascript
 
@@ -229,15 +228,21 @@ Hot swapping
 nghttpx supports hot swapping using signals.  The hot swapping in
 nghttpx is multi step process.  First send USR2 signal to nghttpx
 process.  It will do fork and execute new executable, using same
-command-line arguments and environment variables.  At this point, both
-current and new processes can accept requests.  To gracefully shutdown
-current process, send QUIT signal to current nghttpx process.  When
-all existing frontend connections are done, the current process will
-exit.  At this point, only new nghttpx process exists and serves
-incoming requests.
+command-line arguments and environment variables.
+
+As of nghttpx version 1.20.0, that is all you have to do.  The new
+main process sends QUIT signal to the original process, when it is
+ready to serve requests, to shut it down gracefully.
+
+For earlier versions of nghttpx, you have to do one more thing.  At
+this point, both current and new processes can accept requests.  To
+gracefully shutdown current process, send QUIT signal to current
+nghttpx process.  When all existing frontend connections are done, the
+current process will exit.  At this point, only new nghttpx process
+exists and serves incoming requests.
 
 If you want to just reload configuration file without executing new
-binary, send SIGHUP to nghttpx master process.
+binary, send SIGHUP to nghttpx main process.
 
 Re-opening log files
 --------------------
@@ -291,13 +296,31 @@ When you write this option in command-line, you should enclose
 argument with single or double quotes, since the character ``;`` has a
 special meaning in shell.
 
-To route, request to request path whose prefix is ``/foo`` to backend
-server ``[::1]:8080``, you can write like so:
+To route, request to request path ``/foo`` to backend server
+``[::1]:8080``, you can write like so:
 
 .. code-block:: text
 
    backend=::1,8080;/foo
 
+If the last character of path pattern is ``/``, all request paths
+which start with that pattern match:
+
+.. code-block:: text
+
+   backend=::1,8080;/bar/
+
+The request path ``/bar/buzz`` matches the ``/bar/``.
+
+You can use ``*`` at the end of the path pattern to make it wildcard
+pattern.  ``*`` must match at least one character:
+
+.. code-block:: text
+
+   backend=::1,8080;/sample*
+
+The request path ``/sample1/foo`` matches the ``/sample*`` pattern.
+
 Of course, you can specify both host and request path at the same
 time:
 
@@ -343,10 +366,9 @@ requests, do this:
    backend=serv1,3000;/;proto=h2
    backend=serv1,3000;/ws/;proto=http/1.1
 
-Note that the backends share the same pattern must have the same
-backend protocol.  The default backend protocol is HTTP/1.1.
+The default backend protocol is HTTP/1.1.
 
-TLS can be enabed per pattern basis:
+TLS can be enabled per pattern basis:
 
 .. code-block:: text
 
@@ -356,6 +378,214 @@ TLS can be enabed per pattern basis:
 In the above case, connection to serv1 will be encrypted by TLS.  On
 the other hand, connection to serv2 will not be encrypted by TLS.
 
+Dynamic hostname lookup
+-----------------------
+
+By default, nghttpx performs backend hostname lookup at start up, or
+configuration reload, and keeps using them in its entire session.  To
+make nghttpx perform hostname lookup dynamically, use ``dns``
+parameter in :option:`--backend` option, like so:
+
+.. code-block:: text
+
+   backend=foo.example.com,80;;dns
+
+nghttpx will cache resolved addresses for certain period of time.  To
+change this cache period, use :option:`--dns-cache-timeout`.
+
+Enable PROXY protocol
+---------------------
+
+PROXY protocol can be enabled per frontend.  In order to enable PROXY
+protocol, use ``proxyproto`` parameter in :option:`--frontend` option,
+like so:
+
+.. code-block:: text
+
+   frontend=*,443;proxyproto
+
+nghttpx supports both PROXY protocol v1 and v2.  AF_UNIX in PROXY
+protocol version 2 is ignored.
+
+Session affinity
+----------------
+
+Two kinds of session affinity are available: client IP, and HTTP
+Cookie.
+
+To enable client IP based affinity, specify ``affinity=ip`` parameter
+in :option:`--backend` option.  If PROXY protocol is enabled, then an
+address obtained from PROXY protocol is taken into consideration.
+
+To enable HTTP Cookie based affinity, specify ``affinity=cookie``
+parameter, and specify a name of cookie in ``affinity-cookie-name``
+parameter.  Optionally, a Path attribute can be specified in
+``affinity-cookie-path`` parameter:
+
+.. code-block:: text
+
+   backend=127.0.0.1,3000;;affinity=cookie;affinity-cookie-name=nghttpxlb;affinity-cookie-path=/
+
+Secure attribute of cookie is set if client connection is protected by
+TLS.  ``affinity-cookie-stickiness`` specifies the stickiness of this
+affinity.  If ``loose`` is given, which is the default, removing or
+adding a backend server might break affinity.  While ``strict`` is
+given, removing the designated backend server breaks affinity, but
+adding new backend server does not cause breakage.
+
+PSK cipher suites
+-----------------
+
+nghttpx supports pre-shared key (PSK) cipher suites for both frontend
+and backend TLS connections.  For frontend connection, use
+:option:`--psk-secrets` option to specify a file which contains PSK
+identity and secrets.  The format of the file is
+``<identity>:<hex-secret>``, where ``<identity>`` is PSK identity, and
+``<hex-secret>`` is PSK secret in hex, like so:
+
+.. code-block:: text
+
+   client1:9567800e065e078085c241d54a01c6c3f24b3bab71a606600f4c6ad2c134f3b9
+   client2:b1376c3f8f6dcf7c886c5bdcceecd1e6f1d708622b6ddd21bda26ebd0c0bca99
+
+nghttpx server accepts any of the identity and secret pairs in the
+file.  The default cipher suite list does not contain PSK cipher
+suites.  In order to use PSK, PSK cipher suite must be enabled by
+using :option:`--ciphers` option.  The desired PSK cipher suite may be
+listed in `HTTP/2 cipher block list
+<https://tools.ietf.org/html/rfc7540#appendix-A>`_.  In order to use
+such PSK cipher suite with HTTP/2, disable HTTP/2 cipher block list by
+using :option:`--no-http2-cipher-block-list` option.  But you should
+understand its implications.
+
+At the time of writing, even if only PSK cipher suites are specified
+in :option:`--ciphers` option, certificate and private key are still
+required.
+
+For backend connection, use :option:`--client-psk-secrets` option to
+specify a file which contains single PSK identity and secret.  The
+format is the same as the file used by :option:`--psk-secrets`
+described above, but only first identity and secret pair is solely
+used, like so:
+
+.. code-block:: text
+
+   client2:b1376c3f8f6dcf7c886c5bdcceecd1e6f1d708622b6ddd21bda26ebd0c0bca99
+
+The default cipher suite list does not contain PSK cipher suites.  In
+order to use PSK, PSK cipher suite must be enabled by using
+:option:`--client-ciphers` option.  The desired PSK cipher suite may
+be listed in `HTTP/2 cipher block list
+<https://tools.ietf.org/html/rfc7540#appendix-A>`_.  In order to use
+such PSK cipher suite with HTTP/2, disable HTTP/2 cipher block list by
+using :option:`--client-no-http2-cipher-block-list` option.  But you
+should understand its implications.
+
+TLSv1.3
+-------
+
+As of nghttpx v1.34.0, if it is built with OpenSSL 1.1.1 or later, it
+supports TLSv1.3.  0-RTT data is supported, but by default its
+processing is postponed until TLS handshake completes to mitigate
+replay attack.  This costs extra round trip and reduces effectiveness
+of 0-RTT data.  :option:`--tls-no-postpone-early-data` makes nghttpx
+not wait for handshake to complete before forwarding request included
+in 0-RTT to get full potential of 0-RTT data.  In this case, nghttpx
+adds ``Early-Data: 1`` header field when forwarding a request to a
+backend server.  All backend servers should recognize this header
+field and understand that there is a risk for replay attack.  See `RFC
+8470 <https://tools.ietf.org/html/rfc8470>`_ for ``Early-Data`` header
+field.
+
+nghttpx disables anti replay protection provided by OpenSSL.  The anti
+replay protection of OpenSSL requires that a resumed request must hit
+the same server which generates the session ticket.  Therefore it
+might not work nicely in a deployment where there are multiple nghttpx
+instances sharing ticket encryption keys via memcached.
+
+Because TLSv1.3 completely changes the semantics of cipher suite
+naming scheme and structure, nghttpx provides the new option
+:option:`--tls13-ciphers` and :option:`--tls13-client-ciphers` to
+change preferred cipher list for TLSv1.3.
+
+WebSockets over HTTP/2
+----------------------
+
+nghttpx supports `RFC 8441 <https://tools.ietf.org/html/rfc8441>`_
+Bootstrapping WebSockets with HTTP/2 for both frontend and backend
+connections.  This feature is enabled by default and no configuration
+is required.
+
+WebSockets over HTTP/3 is also supported.
+
+HTTP/3
+------
+
+nghttpx supports HTTP/3 if it is built with HTTP/3 support enabled.
+HTTP/3 support is experimental.
+
+In order to listen UDP port to receive HTTP/3 traffic,
+:option:`--frontend` option must have ``quic`` parameter:
+
+.. code-block:: text
+
+   frontend=*,443;quic
+
+The above example makes nghttpx receive HTTP/3 traffic on UDP
+port 443.
+
+nghttpx does not support HTTP/3 on backend connection.
+
+Hot swapping (SIGUSR2) or configuration reload (SIGHUP) require eBPF
+program.  Without eBPF, old worker processes keep getting HTTP/3
+traffic and do not work as intended.  The QUIC keying material to
+encrypt Connection ID must be set with
+:option:`--frontend-quic-secret-file` and must provide the existing
+keys in order to keep the existing connections alive during reload.
+
+The construction of Connection ID closely follows Block Cipher CID
+Algorithm described in `QUIC-LB draft
+<https://datatracker.ietf.org/doc/html/draft-ietf-quic-load-balancers>`_.
+A Connection ID that nghttpx generates is always 20 bytes long.  It
+uses first 2 bits as a configuration ID.  The remaining bits in the
+first byte are reserved and random.  The next 4 bytes are server ID.
+The next 4 bytes are used to route UDP datagram to a correct
+``SO_REUSEPORT`` socket.  The remaining bytes are randomly generated.
+The server ID and the next 12 bytes are encrypted with AES-ECB.  The
+key is derived from the keying materials stored in a file specified by
+:option:`--frontend-quic-secret-file`.  The first 2 bits of keying
+material in the file is used as a configuration ID.  The remaining
+bits and following 3 bytes are reserved and unused.  The next 32 bytes
+are used as an initial secret.  The remaining 32 bytes are used as a
+salt.  The encryption key is generated by `HKDF
+<https://datatracker.ietf.org/doc/html/rfc5869>`_ with SHA256 and
+these keying materials and ``connection id encryption key`` as info.
+
+In order announce that HTTP/3 endpoint is available, you should
+specify alt-svc header field.  For example, the following options send
+alt-svc header field in HTTP/1.1 and HTTP/2 response:
+
+.. code-block:: text
+
+   altsvc=h3,443,,,ma=3600
+   http2-altsvc=h3,443,,,ma=3600
+
+Migration from nghttpx v1.18.x or earlier
+-----------------------------------------
+
+As of nghttpx v1.19.0, :option:`--ciphers` option only changes cipher
+list for frontend TLS connection.  In order to change cipher list for
+backend connection, use :option:`--client-ciphers` option.
+
+Similarly, :option:`--no-http2-cipher-block-list` option only disables
+HTTP/2 cipher block list for frontend connection.  In order to disable
+HTTP/2 cipher block list for backend connection, use
+:option:`--client-no-http2-cipher-block-list` option.
+
+``--accept-proxy-protocol`` option was deprecated.  Instead, use
+``proxyproto`` parameter in :option:`--frontend` option to enable
+PROXY protocol support per frontend.
+
 Migration from nghttpx v1.8.0 or earlier
 ----------------------------------------
 

doc/sources/python-apiref.rst

@@ -1,439 +0,0 @@
-Python API Reference
-====================
-
-.. py:module:: nghttp2
-
-nghttp2 offers some high level Python API to C library.  The bindings
-currently provide HPACK compressor and decompressor classes and HTTP/2
-server class.
-
-The extension module is called ``nghttp2``.
-
-``make`` will build the bindings.  The target Python version is
-determined by configure script.  If the detected Python version is not
-what you expect, specify a path to Python executable in ``PYTHON``
-variable as an argument to configure script (e.g., ``./configure
-PYTHON=/usr/bin/python3.5``).
-
-HPACK API
----------
-
-.. py:class:: HDDeflater(hd_table_bufsize_max=DEFLATE_MAX_HEADER_TABLE_SIZE)
-
-   This class is used to perform header compression.  The
-   *hd_table_bufsize_max* limits the usage of header table in the
-   given amount of bytes.  The default value is
-   :py:data:`DEFLATE_MAX_HEADER_TABLE_SIZE`.  This is necessary
-   because the deflater and inflater share the same amount of header
-   table and the inflater decides that number.  The deflater may not
-   want to use all header table size because of limited memory
-   availability.  In that case, *hd_table_bufsize_max* can be used to
-   cap the upper limit of table size whatever the header table size is
-   chosen by the inflater.
-
-   .. py:method:: deflate(headers)
-
-      Deflates the *headers*. The *headers* must be sequence of tuple
-      of name/value pair, which are byte strings (not unicode string).
-
-      This method returns the deflated header block in byte string.
-      Raises the exception if any error occurs.
-
-   .. py:method:: set_no_refset(no_refset)
-
-      Tells the deflater not to use reference set if *no_refset* is
-      evaluated to ``True``.  If that happens, on each subsequent
-      invocation of :py:meth:`deflate()`, deflater will clear up
-      refersent set.
-
-   .. py:method:: change_table_size(hd_table_bufsize_max)
-
-      Changes header table size to *hd_table_bufsize_max* byte.  if
-      *hd_table_bufsize_max* is strictly larger than
-      ``hd_table_bufsize_max`` given in constructor,
-      ``hd_table_bufsize_max`` is used as header table size instead.
-
-      Raises the exception if any error occurs.
-
-   .. py:method:: get_hd_table()
-
-      Returns copy of current dynamic header table.
-
-The following example shows how to deflate header name/value pairs:
-
-.. code-block:: python
-
-   import binascii, nghttp2
-
-   deflater = nghttp2.HDDeflater()
-
-   res = deflater.deflate([(b'foo', b'bar'),
-                           (b'baz', b'buz')])
-
-   print(binascii.b2a_hex(res))
-
-
-.. py:class:: HDInflater()
-
-   This class is used to perform header decompression.
-
-   .. py:method:: inflate(data)
-
-      Inflates the deflated header block *data*. The *data* must be
-      byte string.
-
-      Raises the exception if any error occurs.
-
-   .. py:method:: change_table_size(hd_table_bufsize_max)
-
-      Changes header table size to *hd_table_bufsize_max* byte.
-
-      Raises the exception if any error occurs.
-
-   .. py:method:: get_hd_table()
-
-      Returns copy of current dynamic header table.
-
-The following example shows how to inflate deflated header block:
-
-.. code-block:: python
-
-   deflater = nghttp2.HDDeflater()
-
-   data = deflater.deflate([(b'foo', b'bar'),
-                            (b'baz', b'buz')])
-
-   inflater = nghttp2.HDInflater()
-
-   hdrs = inflater.inflate(data)
-
-   print(hdrs)
-
-
-.. py:function:: print_hd_table(hdtable)
-
-   Convenient function to print *hdtable* to the standard output.  The
-   *hdtable* is the one retrieved by
-   :py:meth:`HDDeflater.get_hd_table()` or
-   :py:meth:`HDInflater.get_hd_table()`.  This function does not work
-   if header name/value cannot be decoded using UTF-8 encoding.
-
-   In output, ``s=N`` means the entry occupies ``N`` bytes in header
-   table.  If ``r=y``, then the entry is in the reference set.
-
-.. py:data:: DEFAULT_HEADER_TABLE_SIZE
-
-   The default header table size, which is 4096 as per HTTP/2
-   specification.
-
-.. py:data:: DEFLATE_MAX_HEADER_TABLE_SIZE
-
-   The default header table size for deflater.  The initial value
-   is 4096.
-
-HTTP/2 servers
---------------
-
-.. note::
-
-   We use :py:mod:`asyncio` for HTTP/2 server classes, and ALPN.
-   Therefore, Python 3.5 or later is required to use these objects.
-   To explicitly configure nghttp2 build to use Python 3.5, specify
-   the ``PYTHON`` variable to the path to Python 3.5 executable when
-   invoking configure script like this:
-
-   .. code-block:: text
-
-       $ ./configure PYTHON=/usr/bin/python3.5
-
-.. py:class:: HTTP2Server(address, RequestHandlerClass, ssl=None)
-
-   This class builds on top of the :py:mod:`asyncio` event loop.  On
-   construction, *RequestHandlerClass* must be given, which must be a
-   subclass of :py:class:`BaseRequestHandler` class.
-
-   The *address* must be a tuple of hostname/IP address and port to
-   bind.  If hostname/IP address is ``None``, all interfaces are
-   assumed.
-
-   To enable SSL/TLS, specify instance of :py:class:`ssl.SSLContext`
-   in *ssl*.  Before passing *ssl* to
-   :py:func:`BaseEventLoop.create_server`, ALPN protocol identifiers
-   are set using :py:meth:`ssl.SSLContext.set_npn_protocols`.
-
-   To disable SSL/TLS, omit *ssl* or specify ``None``.
-
-   .. py:method:: serve_forever()
-
-      Runs server and processes incoming requests forever.
-
-.. py:class:: BaseRequestHandler(http2, stream_id)
-
-   The class is used to handle the single HTTP/2 stream.  By default,
-   it does not nothing.  It must be subclassed to handle each event
-   callback method.
-
-   The first callback method invoked is :py:meth:`on_headers()`. It is
-   called when HEADERS frame, which includes request header fields, is
-   arrived.
-
-   If request has request body, :py:meth:`on_data()` is invoked for
-   each chunk of received data chunk.
-
-   When whole request is received, :py:meth:`on_request_done()` is
-   invoked.
-
-   When stream is closed, :py:meth:`on_close()` is called.
-
-   The application can send response using :py:meth:`send_response()`
-   method.  It can be used in :py:meth:`on_headers()`,
-   :py:meth:`on_data()` or :py:meth:`on_request_done()`.
-
-   The application can push resource using :py:meth:`push()` method.
-   It must be used before :py:meth:`send_response()` call.
-
-   A :py:class:`BaseRequestHandler` has the following instance
-   variables:
-
-   .. py:attribute:: client_address
-
-      Contains a tuple of the form ``(host, port)`` referring to the
-      client's address.
-
-   .. py:attribute:: stream_id
-
-      Stream ID of this stream
-
-   .. py:attribute:: scheme
-
-      Scheme of the request URI.  This is a value of ``:scheme``
-      header field.
-
-   .. py:attribute:: method
-
-      Method of this stream.  This is a value of ``:method`` header
-      field.
-
-   .. py:attribute:: host
-
-      This is a value of ``:authority`` or ``host`` header field.
-
-   .. py:attribute:: path
-
-      This is a value of ``:path`` header field.
-
-   .. py:attribute:: headers
-
-      Request header fields.
-
-   A :py:class:`BaseRequestHandler` has the following methods:
-
-   .. py:method:: on_headers()
-
-      Called when request HEADERS is arrived.  By default, this method
-      does nothing.
-
-   .. py:method:: on_data(data)
-
-      Called when a chunk of request body *data* is arrived.  This
-      method will be called multiple times until all data are
-      received.  By default, this method does nothing.
-
-   .. py:method:: on_request_done()
-
-      Called when whole request was received.  By default, this method
-      does nothing.
-
-   .. py:method:: on_close(error_code)
-
-      Called when stream is about to close.  The *error_code*
-      indicates the reason of closure.  If it is ``0``, the stream is
-      going to close without error.
-
-   .. py:method:: send_response(status=200, headers=None, body=None)
-
-      Send response.  The *status* is HTTP status code.  The *headers*
-      is additional response headers.  The *:status* header field will
-      be appended by the library.  The *body* is the response body.
-      It could be ``None`` if response body is empty.  Or it must be
-      instance of either ``str``, ``bytes``, :py:class:`io.IOBase` or
-      callable, called body generator, which takes one parameter,
-      size.  The body generator generates response body.  It can pause
-      generation of response so that it can wait for slow backend data
-      generation.  When invoked, it should return tuple, byte string
-      at most size length and flag.  The flag is either
-      :py:data:`DATA_OK`, :py:data:`DATA_EOF` or
-      :py:data:`DATA_DEFERRED`.  For non-empty byte string and it is
-      not the last chunk of response, :py:data:`DATA_OK` must be
-      returned as flag.  If this is the last chunk of the response
-      (byte string could be ``None``), :py:data:`DATA_EOF` must be
-      returned as flag.  If there is no data available right now, but
-      additional data are anticipated, return tuple (``None``,
-      :py:data:`DATA_DEFERRED`).  When data arrived, call
-      :py:meth:`resume()` and restart response body transmission.
-
-      Only the body generator can pause response body generation;
-      instance of :py:class:`io.IOBase` must not block.
-
-      If instance of ``str`` is specified as *body*, it will be
-      encoded using UTF-8.
-
-      The *headers* is a list of tuple of the form ``(name,
-      value)``. The ``name`` and ``value`` can be either byte string
-      or unicode string.  In the latter case, they will be encoded
-      using UTF-8.
-
-      Raises the exception if any error occurs.
-
-   .. py:method:: push(path, method='GET', request_headers=None, status=200, headers=None, body=None)
-
-      Push a specified resource.  The *path* is a path portion of
-      request URI for this resource.  The *method* is a method to
-      access this resource.  The *request_headers* is additional
-      request headers to access this resource.  The ``:scheme``,
-      ``:method``, ``:authority`` and ``:path`` are appended by the
-      library.  The ``:scheme`` and ``:authority`` are inherited from
-      request header fields of the associated stream.
-
-      The *status* is HTTP status code.  The *headers* is additional
-      response headers.  The ``:status`` header field is appended by
-      the library.  The *body* is the response body.  It has the same
-      semantics of *body* parameter of :py:meth:`send_response()`.
-
-      The headers and request_headers are a list of tuple of the form
-      ``(name, value)``. The ``name`` and ``value`` can be either byte
-      string or unicode string.  In the latter case, they will be
-      encoded using UTF-8.
-
-      Returns an instance of ``RequestHandlerClass`` specified in
-      :py:class:`HTTP2Server` constructor for the pushed resource.
-
-      Raises the exception if any error occurs.
-
-   .. py:method:: resume()
-
-      Signals the restarting of response body transmission paused by
-      ``DATA_DEFERRED`` from the body generator (see
-      :py:meth:`send_response()` about the body generator).  It is not
-      an error calling this method while response body transmission is
-      not paused.
-
-.. py:data:: DATA_OK
-
-   ``DATA_OK`` indicates non empty data is generated from body generator.
-
-.. py:data:: DATA_EOF
-
-   ``DATA_EOF`` indicates the end of response body.
-
-.. py:data:: DATA_DEFERRED
-
-   ``DATA_DEFERRED`` indicates that data are not available right now
-   and response should be paused.
-
-The following example illustrates :py:class:`HTTP2Server` and
-:py:class:`BaseRequestHandler` usage:
-
-.. code-block:: python
-
-    #!/usr/bin/env python
-
-    import io, ssl
-
-    import nghttp2
-
-    class Handler(nghttp2.BaseRequestHandler):
-
-        def on_headers(self):
-            self.push(path='/css/style.css',
-                      request_headers = [('content-type', 'text/css')],
-                      status=200,
-                      body='body{margin:0;}')
-
-            self.send_response(status=200,
-                               headers = [('content-type', 'text/plain')],
-                               body=io.BytesIO(b'nghttp2-python FTW'))
-
-    ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
-    ctx.options = ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3
-    ctx.load_cert_chain('server.crt', 'server.key')
-
-    # give None to ssl to make the server non-SSL/TLS
-    server = nghttp2.HTTP2Server(('127.0.0.1', 8443), Handler, ssl=ctx)
-    server.serve_forever()
-
-The following example illustrates HTTP/2 server using asynchronous
-response body generation.  This is simplified reverse proxy:
-
-.. code-block:: python
-
-    #!/usr/bin/env python
-
-    import ssl
-    import os
-    import urllib
-    import asyncio
-    import io
-
-    import nghttp2
-
-    @asyncio.coroutine
-    def get_http_header(handler, url):
-        url = urllib.parse.urlsplit(url)
-        ssl = url.scheme == 'https'
-        if url.port == None:
-            if url.scheme == 'https':
-                port = 443
-            else:
-                port = 80
-        else:
-            port = url.port
-
-        connect = asyncio.open_connection(url.hostname, port, ssl=ssl)
-        reader, writer = yield from connect
-        req = 'GET {path} HTTP/1.0\r\n\r\n'.format(path=url.path or '/')
-        writer.write(req.encode('utf-8'))
-        # skip response header fields
-        while True:
-            line = yield from reader.readline()
-            line = line.rstrip()
-            if not line:
-                break
-        # read body
-        while True:
-            b = yield from reader.read(4096)
-            if not b:
-                break
-            handler.buf.write(b)
-        writer.close()
-        handler.buf.seek(0)
-        handler.eof = True
-        handler.resume()
-
-    class Body:
-        def __init__(self, handler):
-            self.handler = handler
-            self.handler.eof = False
-            self.handler.buf = io.BytesIO()
-
-        def generate(self, n):
-            buf = self.handler.buf
-            data = buf.read1(n)
-            if not data and not self.handler.eof:
-                return None, nghttp2.DATA_DEFERRED
-            return data, nghttp2.DATA_EOF if self.handler.eof else nghttp2.DATA_OK
-
-    class Handler(nghttp2.BaseRequestHandler):
-
-        def on_headers(self):
-            body = Body(self)
-            asyncio.async(get_http_header(
-                self, 'http://localhost' + self.path.decode('utf-8')))
-            self.send_response(status=200, body=body.generate)
-
-    ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
-    ctx.options = ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3
-    ctx.load_cert_chain('server.crt', 'server.key')
-
-    server = nghttp2.HTTP2Server(('127.0.0.1', 8443), Handler, ssl=ctx)
-    server.serve_forever()

doc/sources/security.rst

@@ -0,0 +1,38 @@
+Security Process
+================
+
+If you find a vulnerability in our software, please send the email to
+"tatsuhiro.t at gmail dot com" about its details instead of submitting
+issues on github issue page.  It is a standard practice not to
+disclose vulnerability information publicly until a fixed version is
+released, or mitigation is worked out.  In the future, we may setup a
+dedicated mail address for this purpose.
+
+If we identify that the reported issue is really a vulnerability, we
+open a new security advisory draft using `GitHub security feature
+<https://github.com/nghttp2/nghttp2/security>`_ and discuss the
+mitigation and bug fixes there.  The fixes are committed to the
+private repository.
+
+We write the security advisory and get CVE number from GitHub
+privately.  We also discuss the disclosure date to the public.
+
+We make a new release with the fix at the same time when the
+vulnerability is disclosed to public.
+
+At least 7 days before the public disclosure date, we will post
+security advisory (which includes all the details of the vulnerability
+and the possible mitigation strategies) and the patches to fix the
+issue to `distros@openwall
+<https://oss-security.openwall.org/wiki/mailing-lists/distros>`_
+mailing list.  We also open a new issue on `nghttp2 issue tracker
+<https://github.com/nghttp2/nghttp2/issues>`_ which notifies that the
+upcoming release will have a security fix.  The ``SECURITY`` label is
+attached to this kind of issue.
+
+Before few hours of new release, we merge the fixes to the master
+branch (and/or a release branch if necessary) and make a new release.
+Security advisory is disclosed on GitHub.  We also post the
+vulnerability information to `oss-security
+<https://oss-security.openwall.org/wiki/mailing-lists/oss-security>`_
+mailing list.

doc/sources/tutorial-client.rst

@@ -124,6 +124,7 @@ remote server. It's defined as::
       bev = bufferevent_openssl_socket_new(
           evbase, -1, ssl, BUFFEREVENT_SSL_CONNECTING,
           BEV_OPT_DEFER_CALLBACKS | BEV_OPT_CLOSE_ON_FREE);
+      bufferevent_enable(bev, EV_READ | EV_WRITE);
       bufferevent_setcb(bev, readcb, writecb, eventcb, session_data);
       rv = bufferevent_socket_connect_hostname(bev, session_data->dnsbase,
                                                AF_UNSPEC, host, port);
@@ -421,7 +422,7 @@ the ``on_header_callback()`` is called for each name/value pair::
       return 0;
     }
 
-In this tutorial, we just print the name/value pairs on stdout.
+In this tutorial, we just print the name/value pairs on stderr.
 
 After the HEADERS frame has been fully received (and thus all response
 header name/value pairs have been received), the

docker/Dockerfile

@@ -0,0 +1,78 @@
+FROM debian:11 as build
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        git clang make binutils autoconf automake autotools-dev libtool \
+        pkg-config \
+        zlib1g-dev libev-dev libjemalloc-dev ruby-dev libc-ares-dev bison \
+        libelf-dev
+
+RUN git clone --depth 1 -b OpenSSL_1_1_1s+quic https://github.com/quictls/openssl && \
+    cd openssl && \
+    ./config --openssldir=/etc/ssl && \
+    make -j$(nproc) && \
+    make install_sw && \
+    cd .. && \
+    rm -rf openssl
+
+RUN git clone --depth 1 -b v0.8.0 https://github.com/ngtcp2/nghttp3 && \
+    cd nghttp3 && \
+    autoreconf -i && \
+    ./configure --enable-lib-only && \
+    make -j$(nproc) && \
+    make install-strip && \
+    cd .. && \
+    rm -rf nghttp3
+
+RUN git clone --depth 1 -b v0.12.0 https://github.com/ngtcp2/ngtcp2 && \
+    cd ngtcp2 && \
+    autoreconf -i && \
+    ./configure --enable-lib-only \
+        LIBTOOL_LDFLAGS="-static-libtool-libs" \
+        OPENSSL_LIBS="-l:libssl.a -l:libcrypto.a -ldl -lpthread" \
+        PKG_CONFIG_PATH="/usr/local/lib64/pkgconfig" && \
+    make -j$(nproc) && \
+    make install-strip && \
+    cd .. && \
+    rm -rf ngtcp2
+
+RUN git clone --depth 1 -b v1.0.1 https://github.com/libbpf/libbpf && \
+    cd libbpf && \
+    PREFIX=/usr/local make -C src install && \
+    cd .. && \
+    rm -rf libbpf
+
+RUN git clone --depth 1 https://github.com/nghttp2/nghttp2.git && \
+    cd nghttp2 && \
+    git submodule update --init && \
+    autoreconf -i && \
+    ./configure --disable-examples --disable-hpack-tools \
+        --with-mruby --with-neverbleed \
+        --enable-http3 --with-libbpf \
+        CC=clang CXX=clang++ \
+        LIBTOOL_LDFLAGS="-static-libtool-libs" \
+        OPENSSL_LIBS="-l:libssl.a -l:libcrypto.a -ldl -pthread" \
+        LIBEV_LIBS="-l:libev.a" \
+        JEMALLOC_LIBS="-l:libjemalloc.a" \
+        LIBCARES_LIBS="-l:libcares.a" \
+        ZLIB_LIBS="-l:libz.a" \
+        LIBBPF_LIBS="-L/usr/local/lib64 -l:libbpf.a -l:libelf.a" \
+        LDFLAGS="-static-libgcc -static-libstdc++" \
+        PKG_CONFIG_PATH="/usr/local/lib64/pkgconfig" && \
+    make -j$(nproc) install-strip && \
+    cd .. && \
+    rm -rf nghttp2
+
+FROM gcr.io/distroless/base-debian11
+
+COPY --from=build \
+    /usr/local/share/nghttp2/ \
+    /usr/local/share/nghttp2/
+COPY --from=build \
+    /usr/local/bin/h2load \
+    /usr/local/bin/nghttpx \
+    /usr/local/bin/nghttp \
+    /usr/local/bin/nghttpd \
+    /usr/local/bin/
+COPY --from=build /usr/local/lib/nghttp2/reuseport_kern.o \
+    /usr/local/lib/nghttp2/

docker/README.rst

@@ -0,0 +1,25 @@
+Dockerfile
+==========
+
+Dockerfile creates the applications bundled with nghttp2.
+These applications are:
+
+- nghttp
+- nghttpd
+- nghttpx
+- h2load
+
+HTTP/3 and eBPF features are enabled.
+
+In order to run nghttpx with HTTP/3 endpoint, you need to run the
+image with the escalated privilege.  Here is the example command-line
+to run nghttpx to listen to HTTP/3 on port 443, assuming that the
+current directory contains a private key and a certificate in
+server.key and server.crt respectively:
+
+.. code-block:: text
+
+   $ docker run --rm -it -v /path/to/certs:/shared --net=host --privileged \
+         nghttp2 nghttpx \
+         /shared/server.key /shared/server.crt \
+         -f'*,443;quic'