Update bash_completion

Add nghttp2_session_set_user_data() public API function

.clang-format

@@ -4,7 +4,7 @@ AccessModifierOffset: -2
 AlignAfterOpenBracket: Align
 AlignConsecutiveAssignments: false
 AlignConsecutiveDeclarations: false
-AlignEscapedNewlinesLeft: false
+AlignEscapedNewlines: Right
 AlignOperands:   true
 AlignTrailingComments: true
 AllowAllParametersOfDeclarationOnNextLine: true
@@ -31,14 +31,20 @@ BraceWrapping:
   BeforeCatch:     false
   BeforeElse:      false
   IndentBraces:    false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
 BreakBeforeBinaryOperators: None
 BreakBeforeBraces: Attach
+BreakBeforeInheritanceComma: false
 BreakBeforeTernaryOperators: true
 BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
 BreakAfterJavaFieldAnnotations: false
 BreakStringLiterals: true
 ColumnLimit:     80
 CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
 ConstructorInitializerAllOnOneLineOrOnePerLine: true
 ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
@@ -46,7 +52,11 @@ Cpp11BracedListStyle: true
 DerivePointerAlignment: false
 DisableFormat:   false
 ExperimentalAutoDetectBinPacking: false
-ForEachMacros:   [ foreach, Q_FOREACH, BOOST_FOREACH ]
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
 IncludeCategories:
   - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
     Priority:        2
@@ -68,6 +78,7 @@ NamespaceIndentation: None
 ObjCBlockIndentWidth: 2
 ObjCSpaceAfterProperty: false
 ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
 PenaltyBreakBeforeFirstCallParameter: 19
 PenaltyBreakComment: 300
 PenaltyBreakFirstLessLess: 120
@@ -77,7 +88,9 @@ PenaltyReturnTypeOnItsOwnLine: 60
 PointerAlignment: Right
 ReflowComments:  true
 SortIncludes:    false
+SortUsingDeclarations: true
 SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
 SpaceBeforeAssignmentOperators: true
 SpaceBeforeParens: ControlStatements
 SpaceInEmptyParentheses: false

.travis.yml

@@ -1,3 +1,4 @@
+dist: trusty
 env:
   matrix:
     - CI_BUILD=cmake
@@ -6,15 +7,13 @@ language: cpp
 compiler:
   - clang
   - gcc
-sudo: false
+sudo: required
 addons:
   apt:
     sources:
     - ubuntu-toolchain-r-test
-    - george-edison55-precise-backports
     packages:
-    - g++-4.9
-    - libstdc++-4.9-dev
+    - g++-7
     - autoconf
     - automake
     - autotools-dev
@@ -33,29 +32,18 @@ addons:
     - cmake-data
 before_install:
   - $CC --version
-  - if [ "$CXX" = "g++" ]; then export CXX="g++-4.9" CC="gcc-4.9"; fi
+  - if [ "$CXX" = "g++" ]; then export CXX="g++-7" CC="gcc-7"; 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="$SPDYLAY_HOME/lib/.libs/libspdylay.so"; fi
+  - if [ "$CI_BUILD" = "autotools" ]; then ./configure --with-mruby; fi
+  - if [ "$CI_BUILD" = "cmake" ]; then cmake -DENABLE_WERROR=1 -DWITH_MRUBY=1 -DWITH_NEVERBLEED=1; fi
 script:
-  - if [ "$CI_BUILD" = "autotools" ]; then make distcheck; fi
+  - if [ "$CI_BUILD" = "autotools" ]; then make distcheck DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-neverbleed --enable-werror CPPFLAGS=-fsanitize=address LDFLAGS=\"-fsanitize=address -fuse-ld=gold\""; fi
   - if [ "$CI_BUILD" = "cmake" ]; then make check; fi
   # As of April, 23, 2016, golang http2 build fails, probably because
   # the default go version is too old.

AUTHORS

@@ -21,21 +21,26 @@ Amir Pakdel
 Anders Bakken
 Andreas Pohl
 Andy Davies
+Angus Gratton
+Anna Henningsen
 Ant Bryan
 Benedikt Christoph Wolters
-Benedikt Christoph Wolters
-Bernard Spil
+Benjamin Peterson
 Bernard Spil
 Brian Card
 Brian Suh
+Daniel Evers
 Daniel Stenberg
 Dave Reisner
 David Beitey
 David Weekly
+Dmitriy Vetutnev
+Dylan Plecki
 Etienne Cimon
 Fabian Möller
 Fabian Wiesel
 Gabi Davar
+Gitai
 Google Inc.
 Jacob Champion
 Jan-E
@@ -50,11 +55,15 @@ Kenny (kang-yen) Peng
 Kenny Peng
 Kit Chan
 Kyle Schomp
+LazyHamster
 Lucas Pardue
 MATSUMOTO Ryosuke
+Marc Bachmann
 Matt Rudary
+Matt Way
 Mike Conlen
 Mike Frysinger
+Mike Lothian
 Nicholas Hurley
 Nora Shoemaker
 Peeyush Aggarwal
@@ -63,15 +72,21 @@ Piotr Sikora
 Raul Gutierrez Segales
 Remo E
 Reza Tavakoli
+Rick Lei
 Ross Smith II
 Scott Mitchell
+Sebastiaan Deckers
+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
 Tomasz Buchert
 Tomasz Torcz
@@ -89,6 +104,7 @@ dalf
 es
 fangdingjun
 kumagi
+lstefani
 makovich
 mod-h2-dev
 moparisthebest

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 1.20.0)
+project(nghttp2 VERSION 1.31.0)
 
 # See versioning rule:
 #  http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-set(LT_CURRENT  27)
+set(LT_CURRENT  30)
 set(LT_REVISION 0)
-set(LT_AGE      13)
+set(LT_AGE      16)
 
-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}")
@@ -79,7 +79,7 @@ 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   ${JEMALLOC_FOUND})
@@ -106,23 +106,13 @@ endif()
 foreach(_build_type "Release" "MinSizeRel" "RelWithDebInfo")
   foreach(_lang C CXX)
     string(TOUPPER "CMAKE_${_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()
 
@@ -312,6 +302,7 @@ 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)
 
 include(CheckSymbolExists)
 # XXX does this correctly detect initgroups (un)availability on cygwin?

Dockerfile.android

@@ -10,39 +10,47 @@
 #
 # $ 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:xenial
 MAINTAINER Tatsuhiro Tsujikawa
-
-ENV ANDROID_HOME /root/android
-ENV PREFIX $ANDROID_HOME/usr/local
+ENV ANDROID_HOME /root
 ENV TOOLCHAIN $ANDROID_HOME/toolchain
 ENV PATH $TOOLCHAIN/bin:$PATH
 
-# 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
+ENV NDK_VERSION r14b
 
-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
+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 python&& \
+    rm -rf /var/cache/apk/*
+
+# Install toolchain
+RUN curl -L -O https://dl.google.com/android/repository/android-ndk-$NDK_VERSION-linux-x86_64.zip && \
+   unzip -q android-ndk-$NDK_VERSION-linux-x86_64.zip && \
+   rm android-ndk-$NDK_VERSION-linux-x86_64.zip && \
+   mkdir -p $ANDROID_HOME/toolchain && \
+   $ANDROID_HOME/android-ndk-$NDK_VERSION/build/tools/make-standalone-toolchain.sh \
+       --install-dir=$ANDROID_HOME/toolchain \
+       --toolchain=arm-linux-androideabi-4.9 \
+       --force && \
+   rm -r android-ndk-$NDK_VERSION
+
+ENV PREFIX /root/usr/local
+
+# Setup version of libraries
+ENV OPENSSL_VERSION 1.0.2d
+ENV SPDYLAY_VERSION v1.4.0
+ENV LIBEV_VERSION 4.19
+ENV ZLIB_VERSION 1.2.8
+ENV CARES_VERSION 1.13.0
+ENV NGHTTP2_VERSION v1.24.0
 
 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
-
-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
+RUN git clone https://github.com/tatsuhiro-t/spdylay -b $SPDYLAY_VERSION --depth 1
 WORKDIR /root/build/spdylay
 RUN autoreconf -i && \
     ./configure \
@@ -59,22 +67,22 @@ RUN autoreconf -i && \
     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
+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/openssl-1.0.2d
+WORKDIR /root/build/openssl-$OPENSSL_VERSION
 RUN export CROSS_COMPILE=$TOOLCHAIN/bin/arm-linux-androideabi- && \
     ./Configure --prefix=$PREFIX android && \
     make && make install_sw
 
 WORKDIR /root/build
-RUN curl -L -O http://dist.schmorp.de/libev/libev-4.19.tar.gz && \
+RUN curl -L -O http://dist.schmorp.de/libev/Attic/libev-$LIBEV_VERSION.tar.gz && \
     curl -L -O https://gist.github.com/tatsuhiro-t/48c45f08950f587180ed/raw/80a8f003b5d1091eae497c5995bbaa68096e739b/libev-4.19-android.patch && \
-    tar xf libev-4.19.tar.gz && \
-    rm libev-4.19.tar.gz
+    tar xf libev-$LIBEV_VERSION.tar.gz && \
+    rm libev-$LIBEV_VERSION.tar.gz
 
-WORKDIR /root/build/libev-4.19
+WORKDIR /root/build/libev-$LIBEV_VERSION
 RUN patch -p1 < ../libev-4.19-android.patch && \
     ./configure \
     --host=arm-linux-androideabi \
@@ -87,11 +95,11 @@ 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://downloads.sourceforge.net/project/libpng/zlib/$ZLIB_VERSION/zlib-$ZLIB_VERSION.tar.gz && \
+    tar xf zlib-$ZLIB_VERSION.tar.gz && \
+    rm zlib-$ZLIB_VERSION.tar.gz
 
-WORKDIR /root/build/zlib-1.2.8
+WORKDIR /root/build/zlib-$ZLIB_VERSION
 RUN HOST=arm-linux-androideabi \
     CC=$HOST-gcc \
     AR=$HOST-ar \
@@ -105,11 +113,26 @@ 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=arm-linux-androideabi \
+      --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 $NGHTTP2_VERSION --depth 1
 WORKDIR /root/build/nghttp2
 RUN autoreconf -i && \
     ./configure \
+    --enable-app \
     --disable-shared \
     --host=arm-linux-androideabi \
     --build=`dpkg-architecture -qDEB_BUILD_GNU_TYPE` \
@@ -118,11 +141,10 @@ RUN autoreconf -i && \
     --disable-python-bindings \
     --disable-examples \
     --disable-threads \
-    LIBSPDYLAY_CFLAGS=-I$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" && \
+      CC="$TOOLCHAIN"/bin/arm-linux-androideabi-clang \
+      CXX="$TOOLCHAIN"/bin/arm-linux-androideabi-clang++ \
+      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

README.rst

@@ -4,10 +4,10 @@ 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.
 
@@ -34,8 +34,8 @@ implementation.
 
 * https://nghttp2.org/ (TLS + ALPN/NPN)
 
-  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.
 
 * http://nghttp2.org/ (HTTP Upgrade and HTTP/2 Direct)
@@ -76,18 +76,10 @@ 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
-
-We no longer recommend to build nghttp2 with SPDY protocol support
-enabled.  SPDY support will be removed soon.
-
 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:
@@ -130,13 +122,9 @@ and above, run the following to install the required packages:
 
     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 \
-      libc-ares-dev libjemalloc-dev libsystemd-dev libspdylay-dev \
+      libc-ares-dev libjemalloc-dev libsystemd-dev \
       cython python3-dev python-setuptools
 
-Since 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/
-
 To enable mruby support for nghttpx, `mruby
 <https://github.com/mruby/mruby>`_ is required.  We need to build
 mruby with C++ ABI explicitly turned on, and probably need other
@@ -157,22 +145,8 @@ 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
------------------
-
-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
-
-To compile the source code, gcc >= 4.8.3 or clang >= 3.4 is required.
+In order to compile the source code, gcc >= 4.8.3 or clang >= 3.4 is
+required.
 
 .. note::
 
@@ -197,6 +171,62 @@ 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``.
+
+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)
 ------------------------------------
 
@@ -243,6 +273,18 @@ 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
 --------------------------
 
@@ -278,7 +320,6 @@ 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:
@@ -296,11 +337,6 @@ 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
 ---------------------------------
 
@@ -701,7 +737,7 @@ 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/2, and
 HTTP/1.1, and powers http://nghttp2.org and supports HTTP/2 server
 push.
 
@@ -716,31 +752,30 @@ 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/2, HTTP/1.1 HTTP/1.1, HTTP/2 Reverse proxy
+``--http2-proxy``  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
+a reverse proxy and listens for 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``.
@@ -750,16 +785,16 @@ server:
 
 .. code-block:: text
 
-    Client <-- (HTTP/2, SPDY, HTTP/1.1) --> nghttpx <-- (HTTP/1.1, HTTP/2) --> Web Server
-                                          [reverse proxy]
+    Client <-- (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/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.
@@ -791,7 +826,7 @@ proxy through an HTTP proxy:
 
 .. code-block:: text
 
-    Client <-- (HTTP/2, SPDY, HTTP/1.1) --> nghttpx <-- (HTTP/2) --
+    Client <-- (HTTP/2, HTTP/1.1) --> nghttpx <-- (HTTP/2) --
 
             --===================---> HTTP/2 Proxy
               (HTTP proxy tunnel)     (e.g., nghttpx -s)
@@ -799,9 +834,8 @@ 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/2.  The UI of
+``h2load`` is heavily inspired by ``weighttp``
 (https://github.com/lighttpd/weighttp).  The typical usage is as
 follows:
 

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@
 
@@ -38,6 +34,9 @@
 /* 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
 

configure.ac

@@ -25,7 +25,7 @@ dnl Do not change user variables!
 dnl http://www.gnu.org/software/automake/manual/html_node/Flag-Variables-Ordering.html
 
 AC_PREREQ(2.61)
-AC_INIT([nghttp2], [1.20.0], [t-tujikawa@users.sourceforge.net])
+AC_INIT([nghttp2], [1.31.0], [t-tujikawa@users.sourceforge.net])
 AC_CONFIG_AUX_DIR([.])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADERS([config.h])
@@ -44,9 +44,9 @@ 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, 27)
+AC_SUBST(LT_CURRENT, 30)
 AC_SUBST(LT_REVISION, 0)
-AC_SUBST(LT_AGE, 13)
+AC_SUBST(LT_AGE, 16)
 
 major=`echo $PACKAGE_VERSION |cut -d. -f1 | sed -e "s/[^0-9]//g"`
 minor=`echo $PACKAGE_VERSION |cut -d. -f2 | sed -e "s/[^0-9]//g"`
@@ -117,11 +117,6 @@ AC_ARG_WITH([jemalloc],
                     [Use jemalloc [default=check]])],
     [request_jemalloc=$withval], [request_jemalloc=check])
 
-AC_ARG_WITH([spdylay],
-    [AS_HELP_STRING([--with-spdylay],
-                    [Use spdylay [default=no]])],
-    [request_spdylay=$withval], [request_spdylay=no])
-
 AC_ARG_WITH([systemd],
     [AS_HELP_STRING([--with-systemd],
                     [Enable systemd support in nghttpx [default=check]])],
@@ -176,19 +171,9 @@ else
   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
 
@@ -420,7 +405,7 @@ if test "x${request_systemd}" = "xyes" &&
 fi
 
 # libxml2 (for src/nghttp)
-PKG_CHECK_MODULES([LIBXML2], [libxml-2.0 >= 2.7.7],
+PKG_CHECK_MODULES([LIBXML2], [libxml-2.0 >= 2.6.26],
                   [have_libxml2=yes], [have_libxml2=no])
 if test "x${have_libxml2}" = "xyes"; then
   AC_DEFINE([HAVE_LIBXML2], [1], [Define to 1 if you have `libxml2` library.])
@@ -468,26 +453,6 @@ if test "x${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
 
@@ -723,6 +688,7 @@ AC_CHECK_FUNCS([ \
   memchr \
   memmove \
   memset \
+  mkostemp \
   socket \
   sqrt \
   strchr \
@@ -814,6 +780,9 @@ 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
 
@@ -934,7 +903,6 @@ AC_MSG_NOTICE([summary of build options:
       Libev:          ${have_libev} (CFLAGS='${LIBEV_CFLAGS}' LIBS='${LIBEV_LIBS}')
       Libc-ares       ${have_libcares} (CFLAGS='${LIBCARES_CFLAGS}' LIBS='${LIBCARES_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}')
       Zlib:           ${have_zlib} (CFLAGS='${ZLIB_CFLAGS}' LIBS='${ZLIB_LIBS}')

doc/CMakeLists.txt

@@ -49,6 +49,7 @@ 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

doc/Makefile.am

@@ -74,12 +74,14 @@ 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 \
@@ -141,6 +143,7 @@ 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 \
@@ -267,7 +270,7 @@ apiref.rst: \
 $(APIDOCS): apiref.rst
 
 clean-local:
-	[ $(srcdir) = $(builddir) ] || for i in $(RST_FILES); do [ -e $(builddir)/$$i ] && rm -f $(builddir)/$$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/sphinxcontrib/rubydomain.py

@@ -13,6 +13,7 @@ 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
@@ -21,10 +22,8 @@ from sphinx.locale import l_, _
 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)

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=( $( compgen -W '--connection-window-bits --clients --verbose --ciphers --rate --no-tls-proto --header-table-size --requests --base-uri --h1 --threads --npn-list --rate-period --data --version --connection-inactivity-timeout --timing-script-file --encoder-header-table-size --max-concurrent-streams --connection-active-timeout --input-file --help --window-bits --warm-up-time --duration --header ' -- "$cur" ) )
             ;;
         *)
             _filedir

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=( $( compgen -W '--no-push --verbose --no-dep --get-assets --har --header-table-size --multiply --encoder-header-table-size --padding --hexdump --max-concurrent-streams --continuation --connection-window-bits --peer-max-concurrent-streams --timeout --data --no-content-length --version --color --cert --upgrade --remote-name --trailer --weight --help --key --null-out --window-bits --expect-continue --stat --no-verify-peer --header ' -- "$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 --frontend-keep-alive-timeout --backend-request-buffer --max-request-header-fields --fastopen --backend-connect-timeout --tls-max-proto-version --conf --dns-lookup-timeout --backend-http2-max-concurrent-streams --worker-write-burst --npn-list --dns-max-try --fetch-ocsp-response-file --no-via --tls-session-cache-memcached-cert-file --no-http2-cipher-black-list --mruby-file --client-no-http2-cipher-black-list --stream-read-timeout --client-ciphers --forwarded-for --accesslog-syslog --dns-cache-timeout --frontend-http2-read-timeout --listener-disable-timeout --ciphers --client-psk-secrets --strip-incoming-x-forwarded-for --no-server-rewrite --private-key-passwd-file --backend-keep-alive-timeout --backend-http-proxy-uri --frontend-max-requests --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 --redirect-https-port --request-header-field-buffer --api-max-request-body --frontend-http2-decoder-dynamic-table-size --errorlog-file --frontend-http2-max-concurrent-streams --psk-secrets --frontend-write-timeout --tls-ticket-key-cipher --read-burst --backend --server-name --insecure --backend-max-backoff --log-level --host-rewrite --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 --single-thread --tls-session-cache-memcached --no-ocsp --backend-response-buffer --tls-min-proto-version --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 --accesslog-write-early --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 --tls-ticket-key-memcached --tls-dyn-rec-idle-timeout --frontend-http2-optimize-write-buffer-size --verify-client --frontend-http2-encoder-dynamic-table-size --read-rate --backend-connections-per-frontend --strip-incoming-forwarded ' -- "$cur" ) )
+            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 --frontend-keep-alive-timeout --backend-request-buffer --max-request-header-fields --backend-connect-timeout --tls-max-proto-version --conf --dns-lookup-timeout --backend-http2-max-concurrent-streams --worker-write-burst --npn-list --dns-max-try --fetch-ocsp-response-file --no-via --tls-session-cache-memcached-cert-file --no-http2-cipher-black-list --mruby-file --add-forwarded --client-no-http2-cipher-black-list --stream-read-timeout --client-ciphers --ocsp-update-interval --forwarded-for --accesslog-syslog --dns-cache-timeout --frontend-http2-read-timeout --listener-disable-timeout --ciphers --client-psk-secrets --strip-incoming-x-forwarded-for --no-server-rewrite --private-key-passwd-file --backend-keep-alive-timeout --backend-http-proxy-uri --frontend-max-requests --rlimit-nofile --no-strip-incoming-x-forwarded-proto --tls-ticket-key-memcached-cert-file --no-verify-ocsp --forwarded-by --tls-session-cache-memcached-private-key-file --error-page --ocsp-startup --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 --redirect-https-port --request-header-field-buffer --api-max-request-body --frontend-http2-decoder-dynamic-table-size --errorlog-file --frontend-http2-max-concurrent-streams --psk-secrets --frontend-write-timeout --tls-ticket-key-cipher --read-burst --no-add-x-forwarded-proto --backend --server-name --insecure --backend-max-backoff --log-level --host-rewrite --tls-ticket-key-memcached-interval --frontend-http2-setting-timeout --frontend-http2-connection-window-size --worker-frontend-connections --syslog-facility --fastopen --no-location-rewrite --single-thread --tls-session-cache-memcached --no-ocsp --backend-response-buffer --tls-min-proto-version --workers --add-x-forwarded-for --no-server-push --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 --verify-client-tolerate-expired --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 --accesslog-write-early --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 --single-process --client-cert-file --tls-ticket-key-memcached --tls-dyn-rec-idle-timeout --frontend-http2-optimize-write-buffer-size --verify-client --frontend-http2-encoder-dynamic-table-size --read-rate --backend-connections-per-frontend --strip-incoming-forwarded ' -- "$cur" ) )
             ;;
         *)
             _filedir

doc/conf.py.in

@@ -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

@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "H2LOAD" "1" "Feb 26, 2017" "1.20.0" "nghttp2"
+.TH "H2LOAD" "1" "Feb 27, 2018" "1.31.0" "nghttp2"
 .SH NAME
 h2load \- HTTP/2 benchmarking tool
 .
@@ -35,7 +35,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 \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
@@ -99,7 +101,6 @@ Default: \fB1\fP
 .TP
 .B \-w, \-\-window\-bits=<N>
 Sets the stream level initial window size to (2**<N>)\-1.
-For SPDY, 2**<N> is used instead.
 .sp
 Default: \fB30\fP
 .UNINDENT
@@ -107,9 +108,7 @@ 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
@@ -124,15 +123,14 @@ Add/Override a header to the requests.
 Set allowed  cipher list.  The  format of the  string is
 described in OpenSSL ciphers(1).
 .sp
-Default: \fBECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:DHE\-RSA\-AES128\-GCM\-SHA256:DHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-SHA256:ECDHE\-ECDSA\-AES128\-SHA:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-RSA\-AES128\-SHA:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES256\-SHA:ECDHE\-RSA\-AES256\-SHA:DHE\-RSA\-AES128\-SHA256:DHE\-RSA\-AES128\-SHA:DHE\-RSA\-AES256\-SHA256:DHE\-RSA\-AES256\-SHA:ECDHE\-ECDSA\-DES\-CBC3\-SHA:ECDHE\-RSA\-DES\-CBC3\-SHA:EDH\-RSA\-DES\-CBC3\-SHA:AES128\-GCM\-SHA256:AES256\-GCM\-SHA384:AES128\-SHA256:AES256\-SHA256:AES128\-SHA:AES256\-SHA:DES\-CBC3\-SHA:!DSS\fP
+Default: \fBECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-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: h2c and
-http/1.1
+Available protocols: h2c and http/1.1
 .sp
 Default: \fBh2c\fP
 .UNINDENT
@@ -170,6 +168,19 @@ option is 1s.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-D, \-\-duration=<N>
+Specifies the main duration for the measurements in case
+of timing\-based benchmarking.
+.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
@@ -335,8 +346,7 @@ 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.
@@ -433,7 +443,7 @@ 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``
 
@@ -74,16 +76,13 @@ OPTIONS
 .. option:: -w, --window-bits=<N>
 
     Sets the stream level initial window size to (2\*\*<N>)-1.
-    For SPDY, 2\*\*<N> is used instead.
 
     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``
 
@@ -96,14 +95,13 @@ OPTIONS
     Set allowed  cipher list.  The  format of the  string is
     described in OpenSSL ciphers(1).
 
-    Default: ``ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS``
+    Default: ``ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-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: h2c and
-    http/1.1
+    Available protocols: h2c and http/1.1
 
     Default: ``h2c``
 
@@ -136,6 +134,17 @@ OPTIONS
     the rate option is not used.  The default value for this
     option is 1s.
 
+.. option:: -D, --duration=<N>
+
+    Specifies the main duration for the measurements in case
+    of timing-based benchmarking.
+
+.. 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
@@ -284,8 +293,7 @@ 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.
 
@@ -353,7 +361,7 @@ 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.
 
@@ -110,7 +109,7 @@ 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/nghttp.1

@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTP" "1" "Feb 26, 2017" "1.20.0" "nghttp2"
+.TH "NGHTTP" "1" "Feb 27, 2018" "1.31.0" "nghttp2"
 .SH NAME
 nghttp \- HTTP/2 client
 .
@@ -236,6 +236,12 @@ 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 \-\-version
 Display version information and exit.
 .UNINDENT

doc/nghttp.1.rst

@@ -186,6 +186,11 @@ 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:: --version
 
     Display version information and exit.

doc/nghttpd.1

@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPD" "1" "Feb 26, 2017" "1.20.0" "nghttp2"
+.TH "NGHTTPD" "1" "Feb 27, 2018" "1.31.0" "nghttp2"
 .SH NAME
 nghttpd \- HTTP/2 server
 .

doc/nghttpx.1

@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH "NGHTTPX" "1" "Feb 26, 2017" "1.20.0" "nghttp2"
+.TH "NGHTTPX" "1" "Feb 27, 2018" "1.31.0" "nghttp2"
 .SH NAME
 nghttpx \- HTTP/2 proxy
 .
@@ -35,7 +35,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 \fBnghttpx\fP [OPTIONS]... [<PRIVATE_KEY> <CERT>]
 .SH DESCRIPTION
 .sp
-A reverse proxy for HTTP/2, HTTP/1 and SPDY.
+A reverse proxy for HTTP/2, and HTTP/1.
 .INDENT 0.0
 .TP
 .B <PRIVATE_KEY>
@@ -62,8 +62,7 @@ domain socket  can be  specified by prefixing  path name
 with "unix:" (e.g., unix:/var/run/backend.sock).
 .sp
 Optionally, if <PATTERN>s are given, the backend address
-is  only  used  if  request  matches  the  pattern.   If
-\fI\%\-\-http2\-proxy\fP  is  used,  <PATTERN>s are  ignored.   The
+is  only  used  if  request matches  the  pattern.   The
 pattern  matching is  closely  designed  to ServeMux  in
 net/http package of  Go programming language.  <PATTERN>
 consists of  path, host +  path or just host.   The path
@@ -74,11 +73,16 @@ path which ends  with "\fI/\fP" also matches  the request path
 which  only  lacks  trailing  \(aq\fI/\fP\(aq  (e.g.,  path  "\fI/foo/\fP"
 matches request path  "\fI/foo\fP").  If it does  not end with
 "\fI/\fP", it  performs exact match against  the request path.
-If host  is given, it  performs exact match  against the
-request host.  If  host alone is given,  "\fI/\fP" is appended
-to it,  so that it  matches all request paths  under the
-host   (e.g.,   specifying   "nghttp2.org"   equals   to
-"nghttp2.org/").
+If  host  is given,  it  performs  a match  against  the
+request host.   For a  request received on  the frontend
+listener with  "sni\-fwd" parameter enabled, SNI  host is
+used instead of a request host.  If host alone is given,
+"\fI/\fP" is  appended to it,  so that it matches  all request
+paths  under the  host  (e.g., specifying  "nghttp2.org"
+equals  to "nghttp2.org/").   CONNECT method  is treated
+specially.  It  does not have  path, and we  don\(aqt allow
+empty path.  To workaround  this, we assume that CONNECT
+method has "\fI/\fP" as path.
 .sp
 Patterns with  host take  precedence over  patterns with
 just path.   Then, longer patterns take  precedence over
@@ -92,6 +96,18 @@ host    pattern    "*.nghttp2.org"    matches    against
 match  against  "nghttp2.org".   The exact  hosts  match
 takes precedence over the wildcard hosts match.
 .sp
+If path  part ends with  "*", it is treated  as wildcard
+path.  The  wildcard path  behaves differently  from the
+normal path.  For normal path,  match is made around the
+boundary of path component  separator,"\fI/\fP".  On the other
+hand, the wildcard  path does not take  into account the
+path component  separator.  All paths which  include the
+wildcard  path  without  last  "*" as  prefix,  and  are
+strictly longer than wildcard  path without last "*" are
+matched.  "*"  must match  at least one  character.  For
+example,  the   pattern  "\fI/foo*\fP"  matches   "\fI/foo/\fP"  and
+"\fI/foobar\fP".  But it does not match "\fI/foo\fP", or "\fI/fo\fP".
+.sp
 If <PATTERN> is omitted or  empty string, "\fI/\fP" is used as
 pattern,  which  matches  all request  paths  (catch\-all
 pattern).  The catch\-all backend must be given.
@@ -164,16 +180,32 @@ state, and this is the default behaviour.
 The     session     affinity    is     enabled     using
 "affinity=<METHOD>"  parameter.   If  "ip" is  given  in
 <METHOD>, client  IP based session affinity  is enabled.
-If  "none" is  given  in <METHOD>,  session affinity  is
-disabled, and this is the default.  The session affinity
-is enabled per  <PATTERN>.  If at least  one backend has
-"affinity" parameter,  and its  <METHOD> is  not "none",
-session  affinity is  enabled  for  all backend  servers
-sharing  the  same  <PATTERN>.   It is  advised  to  set
-"affinity"  parameter  to   all  backend  explicitly  if
-session affinity  is desired.  The session  affinity may
-break if one of the backend gets unreachable, or backend
-settings are reloaded or replaced by API.
+If "cookie"  is given in <METHOD>,  cookie based session
+affinity is  enabled.  If  "none" is given  in <METHOD>,
+session affinity  is disabled, and this  is the default.
+The session  affinity is  enabled per <PATTERN>.   If at
+least  one backend  has  "affinity"  parameter, and  its
+<METHOD> is not "none",  session affinity is enabled for
+all backend  servers sharing the same  <PATTERN>.  It is
+advised  to  set  "affinity" parameter  to  all  backend
+explicitly if session affinity  is desired.  The session
+affinity  may   break  if   one  of  the   backend  gets
+unreachable,  or   backend  settings  are   reloaded  or
+replaced by API.
+.sp
+If   "affinity=cookie"    is   used,    the   additional
+configuration                is                required.
+"affinity\-cookie\-name=<NAME>" must be  used to specify a
+name     of     cookie      to     use.      Optionally,
+"affinity\-cookie\-path=<PATH>" can  be used to  specify a
+path   which   cookie    is   applied.    The   optional
+"affinity\-cookie\-secure=<SECURE>"  controls  the  Secure
+attribute of a cookie.  The default value is "auto", and
+the Secure attribute is  determined by a request scheme.
+If a request scheme is "https", then Secure attribute is
+set.  Otherwise, it  is not set.  If  <SECURE> is "yes",
+the  Secure attribute  is  always set.   If <SECURE>  is
+"no", the Secure attribute is always omitted.
 .sp
 By default, name resolution of backend host name is done
 at  start  up,  or reloading  configuration.   If  "dns"
@@ -196,6 +228,13 @@ the   same   <PATTERN>.    It    is   advised   to   set
 "redirect\-if\-no\-tls"    parameter   to    all   backends
 explicitly if this feature is desired.
 .sp
+If "upgrade\-scheme"  parameter is used along  with "tls"
+parameter, HTTP/2 :scheme pseudo header field is changed
+to "https" from "http" when forwarding a request to this
+particular backend.  This is  a workaround for a backend
+server  which  requires  "https" :scheme  pseudo  header
+field on TLS encrypted connection.
+.sp
 Since ";" and ":" are  used as delimiter, <PATTERN> must
 not  contain these  characters.  Since  ";" has  special
 meaning in shell, the option value must be quoted.
@@ -219,6 +258,11 @@ parameters are mutually exclusive.
 Optionally, TLS  can be disabled by  specifying "no\-tls"
 parameter.  TLS is enabled by default.
 .sp
+If "sni\-fwd" parameter is  used, when performing a match
+to select a backend server,  SNI host name received from
+the client  is used  instead of  the request  host.  See
+\fI\%\-\-backend\fP option about the pattern match.
+.sp
 To  make this  frontend as  API endpoint,  specify "api"
 parameter.   This   is  disabled  by  default.    It  is
 important  to  limit the  access  to  the API  frontend.
@@ -434,8 +478,7 @@ this option will be simply ignored.
 .INDENT 0.0
 .TP
 .B \-\-frontend\-http2\-read\-timeout=<DURATION>
-Specify  read  timeout  for  HTTP/2  and  SPDY  frontend
-connection.
+Specify read timeout for HTTP/2 frontend connection.
 .sp
 Default: \fB3m\fP
 .UNINDENT
@@ -464,16 +507,16 @@ Default: \fB1m\fP
 .INDENT 0.0
 .TP
 .B \-\-stream\-read\-timeout=<DURATION>
-Specify  read timeout  for HTTP/2  and SPDY  streams.  0
-means no timeout.
+Specify  read timeout  for HTTP/2  streams.  0  means no
+timeout.
 .sp
 Default: \fB0\fP
 .UNINDENT
 .INDENT 0.0
 .TP
 .B \-\-stream\-write\-timeout=<DURATION>
-Specify write  timeout for  HTTP/2 and SPDY  streams.  0
-means no timeout.
+Specify write  timeout for  HTTP/2 streams.  0  means no
+timeout.
 .sp
 Default: \fB1m\fP
 .UNINDENT
@@ -553,7 +596,7 @@ Default: \fB2m\fP
 Set allowed  cipher list  for frontend  connection.  The
 format of the string is described in OpenSSL ciphers(1).
 .sp
-Default: \fBECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:DHE\-RSA\-AES128\-GCM\-SHA256:DHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-SHA256:ECDHE\-ECDSA\-AES128\-SHA:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-RSA\-AES128\-SHA:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES256\-SHA:ECDHE\-RSA\-AES256\-SHA:DHE\-RSA\-AES128\-SHA256:DHE\-RSA\-AES128\-SHA:DHE\-RSA\-AES256\-SHA256:DHE\-RSA\-AES256\-SHA:ECDHE\-ECDSA\-DES\-CBC3\-SHA:ECDHE\-RSA\-DES\-CBC3\-SHA:EDH\-RSA\-DES\-CBC3\-SHA:AES128\-GCM\-SHA256:AES256\-GCM\-SHA384:AES128\-SHA256:AES256\-SHA256:AES128\-SHA:AES256\-SHA:DES\-CBC3\-SHA:!DSS\fP
+Default: \fBECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-SHA256\fP
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -561,7 +604,7 @@ Default: \fBECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDH
 Set  allowed cipher  list for  backend connection.   The
 format of the string is described in OpenSSL ciphers(1).
 .sp
-Default: \fBECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:DHE\-RSA\-AES128\-GCM\-SHA256:DHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-SHA256:ECDHE\-ECDSA\-AES128\-SHA:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-RSA\-AES128\-SHA:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES256\-SHA:ECDHE\-RSA\-AES256\-SHA:DHE\-RSA\-AES128\-SHA256:DHE\-RSA\-AES128\-SHA:DHE\-RSA\-AES256\-SHA256:DHE\-RSA\-AES256\-SHA:ECDHE\-ECDSA\-DES\-CBC3\-SHA:ECDHE\-RSA\-DES\-CBC3\-SHA:EDH\-RSA\-DES\-CBC3\-SHA:AES128\-GCM\-SHA256:AES256\-GCM\-SHA384:AES128\-SHA256:AES256\-SHA256:AES128\-SHA:AES256\-SHA:DES\-CBC3\-SHA:!DSS\fP
+Default: \fBECDHE\-ECDSA\-AES256\-GCM\-SHA384:ECDHE\-RSA\-AES256\-GCM\-SHA384:ECDHE\-ECDSA\-CHACHA20\-POLY1305:ECDHE\-RSA\-CHACHA20\-POLY1305:ECDHE\-ECDSA\-AES128\-GCM\-SHA256:ECDHE\-RSA\-AES128\-GCM\-SHA256:ECDHE\-ECDSA\-AES256\-SHA384:ECDHE\-RSA\-AES256\-SHA384:ECDHE\-ECDSA\-AES128\-SHA256:ECDHE\-RSA\-AES128\-SHA256\fP
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -583,11 +626,14 @@ enabled for backend connections.
 .INDENT 0.0
 .TP
 .B \-\-cacert=<PATH>
-Set path to trusted CA  certificate file used in backend
-TLS connections.   The file must  be in PEM  format.  It
-can  contain  multiple   certificates.   If  the  linked
-OpenSSL is configured to  load system wide certificates,
-they are loaded at startup regardless of this option.
+Set path to trusted CA  certificate file.  It is used in
+backend  TLS connections  to verify  peer\(aqs certificate.
+It is also used to  verify OCSP response from the script
+set by \fI\%\-\-fetch\-ocsp\-response\-file\fP\&.  The  file must be in
+PEM format.   It can contain multiple  certificates.  If
+the  linked OpenSSL  is configured  to load  system wide
+certificates, they  are loaded at startup  regardless of
+this option.
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -602,12 +648,12 @@ password protected it\(aqll be requested interactively.
 Specify  additional certificate  and  private key  file.
 nghttpx will  choose certificates based on  the hostname
 indicated by client using TLS SNI extension.  If nghttpx
-is  built with  OpenSSL >=  1.0.2, signature  algorithms
-(e.g., ECDSA+SHA256, RSA+SHA256) presented by client are
-also taken  into consideration.  This allows  nghttpx to
-send ECDSA certificate to  modern clients, while sending
-RSA based certificate to older clients.  This option can
-be  used multiple  times.  To  make OCSP  stapling work,
+is  built with  OpenSSL  >= 1.0.2,  the shared  elliptic
+curves (e.g., P\-256) between  client and server are also
+taken into  consideration.  This allows nghttpx  to send
+ECDSA certificate  to modern clients, while  sending RSA
+based certificate to older  clients.  This option can be
+used  multiple  times.   To  make  OCSP  stapling  work,
 <CERTPATH> must be absolute path.
 .sp
 Additional parameter  can be specified in  <PARAM>.  The
@@ -652,6 +698,14 @@ can contain multiple certificates.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-\-verify\-client\-tolerate\-expired
+Accept  expired  client  certificate.   Operator  should
+handle  the expired  client  certificate  by some  means
+(e.g.,  mruby  script).   Otherwise, this  option  might
+cause a security risk.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-\-client\-private\-key\-file=<PATH>
 Path to  file that contains  client private key  used in
 backend client authentication.
@@ -670,10 +724,14 @@ done in  case\-insensitive manner.  The  versions between
 \fI\%\-\-tls\-min\-proto\-version\fP and  \fI\%\-\-tls\-max\-proto\-version\fP are
 enabled.  If the protocol list advertised by client does
 not  overlap  this range,  you  will  receive the  error
-message "unknown protocol".  The available versions are:
+message "unknown protocol".  If a protocol version lower
+than TLSv1.2 is specified, make sure that the compatible
+ciphers are  included in \fI\%\-\-ciphers\fP option.   The default
+cipher  list  only   includes  ciphers  compatible  with
+TLSv1.2 or above.  The available versions are:
 TLSv1.2, TLSv1.1, and TLSv1.0
 .sp
-Default: \fBTLSv1.1\fP
+Default: \fBTLSv1.2\fP
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -803,6 +861,20 @@ Default: \fB4h\fP
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-\-ocsp\-startup
+Start  accepting connections  after initial  attempts to
+get OCSP responses  finish.  It does not  matter some of
+the  attempts  fail.  This  feature  is  useful if  OCSP
+responses   must    be   available    before   accepting
+connections.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-no\-verify\-ocsp
+nghttpx does not verify OCSP response.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-\-no\-ocsp
 Disable OCSP stapling.
 .UNINDENT
@@ -925,14 +997,14 @@ HTTP/2.   To  use  those   cipher  suites  with  HTTP/2,
 consider   to  use   \fI\%\-\-client\-no\-http2\-cipher\-black\-list\fP
 option.  But be aware its implications.
 .UNINDENT
-.SS HTTP/2 and SPDY
+.SS HTTP/2
 .INDENT 0.0
 .TP
 .B \-c, \-\-frontend\-http2\-max\-concurrent\-streams=<N>
 Set the maximum number of  the concurrent streams in one
-frontend HTTP/2 and SPDY session.
+frontend HTTP/2 session.
 .sp
-Default: \(ga\(ga 100\(ga\(ga
+Default: \fB100\fP
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -947,17 +1019,16 @@ Default: \fB100\fP
 .INDENT 0.0
 .TP
 .B \-\-frontend\-http2\-window\-size=<SIZE>
-Sets the  per\-stream initial  window size of  HTTP/2 and
-SPDY frontend connection.
+Sets  the  per\-stream  initial  window  size  of  HTTP/2
+frontend connection.
 .sp
 Default: \fB65535\fP
 .UNINDENT
 .INDENT 0.0
 .TP
 .B \-\-frontend\-http2\-connection\-window\-size=<SIZE>
-Sets the  per\-connection window size of  HTTP/2 and SPDY
-frontend  connection.  For  SPDY  connection, the  value
-less than 64KiB is rounded up to 64KiB.
+Sets the  per\-connection window size of  HTTP/2 frontend
+connection.
 .sp
 Default: \fB65535\fP
 .UNINDENT
@@ -998,8 +1069,7 @@ default mode and HTTP/2  frontend via Link header field.
 It is  also supported if  both frontend and  backend are
 HTTP/2 in default mode.  In  this case, server push from
 backend session is relayed  to frontend, and server push
-via Link header field  is also supported.  SPDY frontend
-does not support server push.
+via Link header field is also supported.
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -1070,7 +1140,7 @@ Default: \fB4K\fP
 .INDENT 0.0
 .TP
 .B (default mode)
-Accept HTTP/2, SPDY and HTTP/1.1 over SSL/TLS.  "no\-tls"
+Accept  HTTP/2,  and  HTTP/1.1 over  SSL/TLS.   "no\-tls"
 parameter is  used in  \fI\%\-\-frontend\fP option,  accept HTTP/2
 and HTTP/1.1 over cleartext  TCP.  The incoming HTTP/1.1
 connection  can  be  upgraded  to  HTTP/2  through  HTTP
@@ -1140,15 +1210,32 @@ $alpn: ALPN identifier of the protocol which generates
 the response.   For HTTP/1,  ALPN is  always http/1.1,
 regardless of minor version.
 .IP \(bu 2
-$ssl_cipher: cipher used for SSL/TLS connection.
+$tls_cipher: cipher used for SSL/TLS connection.
 .IP \(bu 2
-$ssl_protocol: protocol for SSL/TLS connection.
+$tls_client_fingerprint_sha256: SHA\-256 fingerprint of
+client certificate.
 .IP \(bu 2
-$ssl_session_id: session ID for SSL/TLS connection.
+$tls_client_fingerprint_sha1:  SHA\-1   fingerprint  of
+client certificate.
 .IP \(bu 2
-$ssl_session_reused:  "r"   if  SSL/TLS   session  was
+$tls_client_subject_name:   subject  name   in  client
+certificate.
+.IP \(bu 2
+$tls_client_issuer_name:   issuer   name   in   client
+certificate.
+.IP \(bu 2
+$tls_client_serial:    serial    number   in    client
+certificate.
+.IP \(bu 2
+$tls_protocol: protocol for SSL/TLS connection.
+.IP \(bu 2
+$tls_session_id: session ID for SSL/TLS connection.
+.IP \(bu 2
+$tls_session_reused:  "r"   if  SSL/TLS   session  was
 reused.  Otherwise, "."
 .IP \(bu 2
+$tls_sni: SNI server name for SSL/TLS connection.
+.IP \(bu 2
 $backend_host:  backend  host   used  to  fulfill  the
 request.  "\-" if backend host is not available.
 .IP \(bu 2
@@ -1205,6 +1292,21 @@ requests.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-\-no\-add\-x\-forwarded\-proto
+Don\(aqt append  additional X\-Forwarded\-Proto  header field
+to  the   backend  request.   If  inbound   client  sets
+X\-Forwarded\-Proto,                                   and
+\fI\%\-\-no\-strip\-incoming\-x\-forwarded\-proto\fP  option  is  used,
+they are passed to the backend.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-no\-strip\-incoming\-x\-forwarded\-proto
+Don\(aqt strip X\-Forwarded\-Proto  header field from inbound
+client requests.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-\-add\-forwarded=<LIST>
 Append RFC  7239 Forwarded header field  with parameters
 specified in comma delimited list <LIST>.  The supported
@@ -1375,7 +1477,7 @@ Default: \fB443\fP
 .B \-\-api\-max\-request\-body=<SIZE>
 Set the maximum size of request body for API request.
 .sp
-Default: \fB16K\fP
+Default: \fB32M\fP
 .UNINDENT
 .SS DNS
 .INDENT 0.0
@@ -1458,6 +1560,17 @@ Set path to save PID of this program.
 Run this program as <USER>.   This option is intended to
 be used to drop root privileges.
 .UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-single\-process
+Run this program in a  single process mode for debugging
+purpose.  Without this option,  nghttpx creates at least
+2  processes:  master  and worker  processes.   If  this
+option is  used, master  and worker  are unified  into a
+single process.  nghttpx still spawns additional process
+if neverbleed is used.  In  the single process mode, the
+signal handling feature is disabled.
+.UNINDENT
 .SS Scripting
 .INDENT 0.0
 .TP
@@ -1468,7 +1581,9 @@ Set mruby script file
 .INDENT 0.0
 .TP
 .B \-\-conf=<PATH>
-Load configuration from <PATH>.
+Load  configuration  from   <PATH>.   Please  note  that
+nghttpx always  tries to read the  default configuration
+file if \fI\%\-\-conf\fP is not given.
 .sp
 Default: \fB/etc/nghttpx/nghttpx.conf\fP
 .UNINDENT
@@ -1562,7 +1677,7 @@ follows:
 .INDENT 7.0
 .TP
 .B <datetime>
-It is a conbination of date and time when the log is written.  It
+It is a combination of date and time when the log is written.  It
 is in ISO 8601 format.
 .TP
 .B <master\-pid>
@@ -1691,6 +1806,22 @@ be customized using \fI\%\-\-fetch\-ocsp\-response\-file\fP option.
 .sp
 If OCSP query is failed, previous OCSP response, if any, is continued
 to be used.
+.sp
+\fI\%\-\-fetch\-ocsp\-response\-file\fP 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 \fBfetch\-ocsp\-response\fP 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 \fBfetch\-ocsp\-response\fP\&.
+Instead, you can retrieve OCSP response in some way, and store it in a
+disk or a shared database.  Then specify a program in
+\fI\%\-\-fetch\-ocsp\-response\-file\fP 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 \fBfetch\-ocsp\-response\fP
+script.
 .SH TLS SESSION RESUMPTION
 .sp
 nghttpx supports TLS session resumption through both session ID and
@@ -1701,7 +1832,7 @@ By default, session ID is shared by all worker threads.
 .sp
 If \fI\%\-\-tls\-session\-cache\-memcached\fP is given, nghttpx will
 insert serialized session data to memcached with
-\fBnghttpx:tls\-session\-cache:\fP + lowercased hex string of session ID
+\fBnghttpx:tls\-session\-cache:\fP + lowercase hex string of session ID
 as a memcached entry key, with expiry time 12 hours.  Session timeout
 is set to 12 hours.
 .sp
@@ -1783,6 +1914,17 @@ API is subject to change in the future release.
 .UNINDENT
 .UNINDENT
 .sp
+\fBWARNING:\fP
+.INDENT 0.0
+.INDENT 3.5
+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.
+.UNINDENT
+.UNINDENT
+.sp
 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
@@ -1831,7 +1973,7 @@ Return \fI\%Response\fP object.
 .TP
 .B attribute [R] 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.
 .UNINDENT
 .INDENT 7.0
@@ -1869,6 +2011,68 @@ Return true if TLS is used on the connection.
 .B attribute [R] tls_sni
 Return the TLS SNI value which client sent in this connection.
 .UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_fingerprint_sha256
+Return the SHA\-256 fingerprint of a client certificate.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_fingerprint_sha1
+Return the SHA\-1 fingerprint of a client certificate.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_issuer_name
+Return the issuer name of a client certificate.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_subject_name
+Return the subject name of a client certificate.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_serial
+Return the serial number of a client certificate.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_not_before
+Return the start date of a client certificate in seconds since
+the epoch.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_client_not_after
+Return the end date of a client certificate in seconds since
+the epoch.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_cipher
+Return a TLS cipher negotiated in this connection.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_protocol
+Return a TLS protocol version negotiated in this connection.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_session_id
+Return a session ID for this connection in hex string.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] tls_session_reused
+Return true if, and only if a SSL/TLS session is reused.
+.UNINDENT
+.INDENT 7.0
+.TP
+.B attribute [R] alpn
+Return ALPN identifier negotiated in this connection.
+.UNINDENT
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -2146,7 +2350,7 @@ 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.
 .sp
-The one limitation is that only numeric IP address is allowd in
+The one limitation is that only numeric IP address is allowed in
 \fI\%backend\fP in request body unless "dns" parameter
 is used while non numeric hostname is allowed in command\-line or
 configuration file is read using \fI\%\-\-conf\fP\&.

doc/nghttpx.1.rst

@@ -14,7 +14,7 @@ SYNOPSIS
 DESCRIPTION
 -----------
 
-A reverse proxy for HTTP/2, HTTP/1 and SPDY.
+A reverse proxy for HTTP/2, and HTTP/1.
 
 .. describe:: <PRIVATE_KEY>
 
@@ -46,8 +46,7 @@ Connections
     with "unix:" (e.g., unix:/var/run/backend.sock).
 
     Optionally, if <PATTERN>s are given, the backend address
-    is  only  used  if  request  matches  the  pattern.   If
-    :option:`--http2-proxy`  is  used,  <PATTERN>s are  ignored.   The
+    is  only  used  if  request matches  the  pattern.   The
     pattern  matching is  closely  designed  to ServeMux  in
     net/http package of  Go programming language.  <PATTERN>
     consists of  path, host +  path or just host.   The path
@@ -58,11 +57,16 @@ Connections
     which  only  lacks  trailing  '*/*'  (e.g.,  path  "*/foo/*"
     matches request path  "*/foo*").  If it does  not end with
     "*/*", it  performs exact match against  the request path.
-    If host  is given, it  performs exact match  against the
-    request host.  If  host alone is given,  "*/*" is appended
-    to it,  so that it  matches all request paths  under the
-    host   (e.g.,   specifying   "nghttp2.org"   equals   to
-    "nghttp2.org/").
+    If  host  is given,  it  performs  a match  against  the
+    request host.   For a  request received on  the frontend
+    listener with  "sni-fwd" parameter enabled, SNI  host is
+    used instead of a request host.  If host alone is given,
+    "*/*" is  appended to it,  so that it matches  all request
+    paths  under the  host  (e.g., specifying  "nghttp2.org"
+    equals  to "nghttp2.org/").   CONNECT method  is treated
+    specially.  It  does not have  path, and we  don't allow
+    empty path.  To workaround  this, we assume that CONNECT
+    method has "*/*" as path.
 
     Patterns with  host take  precedence over  patterns with
     just path.   Then, longer patterns take  precedence over
@@ -76,6 +80,18 @@ Connections
     match  against  "nghttp2.org".   The exact  hosts  match
     takes precedence over the wildcard hosts match.
 
+    If path  part ends with  "\*", it is treated  as wildcard
+    path.  The  wildcard path  behaves differently  from the
+    normal path.  For normal path,  match is made around the
+    boundary of path component  separator,"*/*".  On the other
+    hand, the wildcard  path does not take  into account the
+    path component  separator.  All paths which  include the
+    wildcard  path  without  last  "\*" as  prefix,  and  are
+    strictly longer than wildcard  path without last "\*" are
+    matched.  "\*"  must match  at least one  character.  For
+    example,  the   pattern  "*/foo\**"  matches   "*/foo/*"  and
+    "*/foobar*".  But it does not match "*/foo*", or "*/fo*".
+
     If <PATTERN> is omitted or  empty string, "*/*" is used as
     pattern,  which  matches  all request  paths  (catch-all
     pattern).  The catch-all backend must be given.
@@ -148,16 +164,32 @@ Connections
     The     session     affinity    is     enabled     using
     "affinity=<METHOD>"  parameter.   If  "ip" is  given  in
     <METHOD>, client  IP based session affinity  is enabled.
-    If  "none" is  given  in <METHOD>,  session affinity  is
-    disabled, and this is the default.  The session affinity
-    is enabled per  <PATTERN>.  If at least  one backend has
-    "affinity" parameter,  and its  <METHOD> is  not "none",
-    session  affinity is  enabled  for  all backend  servers
-    sharing  the  same  <PATTERN>.   It is  advised  to  set
-    "affinity"  parameter  to   all  backend  explicitly  if
-    session affinity  is desired.  The session  affinity may
-    break if one of the backend gets unreachable, or backend
-    settings are reloaded or replaced by API.
+    If "cookie"  is given in <METHOD>,  cookie based session
+    affinity is  enabled.  If  "none" is given  in <METHOD>,
+    session affinity  is disabled, and this  is the default.
+    The session  affinity is  enabled per <PATTERN>.   If at
+    least  one backend  has  "affinity"  parameter, and  its
+    <METHOD> is not "none",  session affinity is enabled for
+    all backend  servers sharing the same  <PATTERN>.  It is
+    advised  to  set  "affinity" parameter  to  all  backend
+    explicitly if session affinity  is desired.  The session
+    affinity  may   break  if   one  of  the   backend  gets
+    unreachable,  or   backend  settings  are   reloaded  or
+    replaced by API.
+
+    If   "affinity=cookie"    is   used,    the   additional
+    configuration                is                required.
+    "affinity-cookie-name=<NAME>" must be  used to specify a
+    name     of     cookie      to     use.      Optionally,
+    "affinity-cookie-path=<PATH>" can  be used to  specify a
+    path   which   cookie    is   applied.    The   optional
+    "affinity-cookie-secure=<SECURE>"  controls  the  Secure
+    attribute of a cookie.  The default value is "auto", and
+    the Secure attribute is  determined by a request scheme.
+    If a request scheme is "https", then Secure attribute is
+    set.  Otherwise, it  is not set.  If  <SECURE> is "yes",
+    the  Secure attribute  is  always set.   If <SECURE>  is
+    "no", the Secure attribute is always omitted.
 
     By default, name resolution of backend host name is done
     at  start  up,  or reloading  configuration.   If  "dns"
@@ -180,6 +212,13 @@ Connections
     "redirect-if-no-tls"    parameter   to    all   backends
     explicitly if this feature is desired.
 
+    If "upgrade-scheme"  parameter is used along  with "tls"
+    parameter, HTTP/2 :scheme pseudo header field is changed
+    to "https" from "http" when forwarding a request to this
+    particular backend.  This is  a workaround for a backend
+    server  which  requires  "https" :scheme  pseudo  header
+    field on TLS encrypted connection.
+
     Since ";" and ":" are  used as delimiter, <PATTERN> must
     not  contain these  characters.  Since  ";" has  special
     meaning in shell, the option value must be quoted.
@@ -203,6 +242,11 @@ Connections
     Optionally, TLS  can be disabled by  specifying "no-tls"
     parameter.  TLS is enabled by default.
 
+    If "sni-fwd" parameter is  used, when performing a match
+    to select a backend server,  SNI host name received from
+    the client  is used  instead of  the request  host.  See
+    :option:`--backend` option about the pattern match.
+
     To  make this  frontend as  API endpoint,  specify "api"
     parameter.   This   is  disabled  by  default.    It  is
     important  to  limit the  access  to  the API  frontend.
@@ -403,8 +447,7 @@ Timeout
 
 .. option:: --frontend-http2-read-timeout=<DURATION>
 
-    Specify  read  timeout  for  HTTP/2  and  SPDY  frontend
-    connection.
+    Specify read timeout for HTTP/2 frontend connection.
 
     Default: ``3m``
 
@@ -429,15 +472,15 @@ Timeout
 
 .. option:: --stream-read-timeout=<DURATION>
 
-    Specify  read timeout  for HTTP/2  and SPDY  streams.  0
-    means no timeout.
+    Specify  read timeout  for HTTP/2  streams.  0  means no
+    timeout.
 
     Default: ``0``
 
 .. option:: --stream-write-timeout=<DURATION>
 
-    Specify write  timeout for  HTTP/2 and SPDY  streams.  0
-    means no timeout.
+    Specify write  timeout for  HTTP/2 streams.  0  means no
+    timeout.
 
     Default: ``1m``
 
@@ -511,14 +554,14 @@ SSL/TLS
     Set allowed  cipher list  for frontend  connection.  The
     format of the string is described in OpenSSL ciphers(1).
 
-    Default: ``ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS``
+    Default: ``ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256``
 
 .. option:: --client-ciphers=<SUITE>
 
     Set  allowed cipher  list for  backend connection.   The
     format of the string is described in OpenSSL ciphers(1).
 
-    Default: ``ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS``
+    Default: ``ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256``
 
 .. option:: --ecdh-curves=<LIST>
 
@@ -537,11 +580,14 @@ SSL/TLS
 
 .. option:: --cacert=<PATH>
 
-    Set path to trusted CA  certificate file used in backend
-    TLS connections.   The file must  be in PEM  format.  It
-    can  contain  multiple   certificates.   If  the  linked
-    OpenSSL is configured to  load system wide certificates,
-    they are loaded at startup regardless of this option.
+    Set path to trusted CA  certificate file.  It is used in
+    backend  TLS connections  to verify  peer's certificate.
+    It is also used to  verify OCSP response from the script
+    set by :option:`--fetch-ocsp-response-file`\.  The  file must be in
+    PEM format.   It can contain multiple  certificates.  If
+    the  linked OpenSSL  is configured  to load  system wide
+    certificates, they  are loaded at startup  regardless of
+    this option.
 
 .. option:: --private-key-passwd-file=<PATH>
 
@@ -554,12 +600,12 @@ SSL/TLS
     Specify  additional certificate  and  private key  file.
     nghttpx will  choose certificates based on  the hostname
     indicated by client using TLS SNI extension.  If nghttpx
-    is  built with  OpenSSL >=  1.0.2, signature  algorithms
-    (e.g., ECDSA+SHA256, RSA+SHA256) presented by client are
-    also taken  into consideration.  This allows  nghttpx to
-    send ECDSA certificate to  modern clients, while sending
-    RSA based certificate to older clients.  This option can
-    be  used multiple  times.  To  make OCSP  stapling work,
+    is  built with  OpenSSL  >= 1.0.2,  the shared  elliptic
+    curves (e.g., P-256) between  client and server are also
+    taken into  consideration.  This allows nghttpx  to send
+    ECDSA certificate  to modern clients, while  sending RSA
+    based certificate to older  clients.  This option can be
+    used  multiple  times.   To  make  OCSP  stapling  work,
     <CERTPATH> must be absolute path.
 
     Additional parameter  can be specified in  <PARAM>.  The
@@ -598,6 +644,13 @@ SSL/TLS
     client certificate.  The file must be in PEM format.  It
     can contain multiple certificates.
 
+.. option:: --verify-client-tolerate-expired
+
+    Accept  expired  client  certificate.   Operator  should
+    handle  the expired  client  certificate  by some  means
+    (e.g.,  mruby  script).   Otherwise, this  option  might
+    cause a security risk.
+
 .. option:: --client-private-key-file=<PATH>
 
     Path to  file that contains  client private key  used in
@@ -615,10 +668,14 @@ SSL/TLS
     :option:`--tls-min-proto-version` and  :option:`\--tls-max-proto-version` are
     enabled.  If the protocol list advertised by client does
     not  overlap  this range,  you  will  receive the  error
-    message "unknown protocol".  The available versions are:
+    message "unknown protocol".  If a protocol version lower
+    than TLSv1.2 is specified, make sure that the compatible
+    ciphers are  included in :option:`--ciphers` option.   The default
+    cipher  list  only   includes  ciphers  compatible  with
+    TLSv1.2 or above.  The available versions are:
     TLSv1.2, TLSv1.1, and TLSv1.0
 
-    Default: ``TLSv1.1``
+    Default: ``TLSv1.2``
 
 .. option:: --tls-max-proto-version=<VER>
 
@@ -734,6 +791,18 @@ SSL/TLS
 
     Default: ``4h``
 
+.. option:: --ocsp-startup
+
+    Start  accepting connections  after initial  attempts to
+    get OCSP responses  finish.  It does not  matter some of
+    the  attempts  fail.  This  feature  is  useful if  OCSP
+    responses   must    be   available    before   accepting
+    connections.
+
+.. option:: --no-verify-ocsp
+
+    nghttpx does not verify OCSP response.
+
 .. option:: --no-ocsp
 
     Disable OCSP stapling.
@@ -847,15 +916,15 @@ SSL/TLS
     option.  But be aware its implications.
 
 
-HTTP/2 and SPDY
-~~~~~~~~~~~~~~~
+HTTP/2
+~~~~~~
 
 .. option:: -c, --frontend-http2-max-concurrent-streams=<N>
 
     Set the maximum number of  the concurrent streams in one
-    frontend HTTP/2 and SPDY session.
+    frontend HTTP/2 session.
 
-    Default: `` 100``
+    Default: ``100``
 
 .. option:: --backend-http2-max-concurrent-streams=<N>
 
@@ -868,16 +937,15 @@ HTTP/2 and SPDY
 
 .. option:: --frontend-http2-window-size=<SIZE>
 
-    Sets the  per-stream initial  window size of  HTTP/2 and
-    SPDY frontend connection.
+    Sets  the  per-stream  initial  window  size  of  HTTP/2
+    frontend connection.
 
     Default: ``65535``
 
 .. option:: --frontend-http2-connection-window-size=<SIZE>
 
-    Sets the  per-connection window size of  HTTP/2 and SPDY
-    frontend  connection.  For  SPDY  connection, the  value
-    less than 64KiB is rounded up to 64KiB.
+    Sets the  per-connection window size of  HTTP/2 frontend
+    connection.
 
     Default: ``65535``
 
@@ -913,8 +981,7 @@ HTTP/2 and SPDY
     It is  also supported if  both frontend and  backend are
     HTTP/2 in default mode.  In  this case, server push from
     backend session is relayed  to frontend, and server push
-    via Link header field  is also supported.  SPDY frontend
-    does not support server push.
+    via Link header field is also supported.
 
 .. option:: --frontend-http2-optimize-write-buffer-size
 
@@ -982,7 +1049,7 @@ Mode
 .. describe:: (default mode)
 
     
-    Accept HTTP/2, SPDY and HTTP/1.1 over SSL/TLS.  "no-tls"
+    Accept  HTTP/2,  and  HTTP/1.1 over  SSL/TLS.   "no-tls"
     parameter is  used in  :option:`--frontend` option,  accept HTTP/2
     and HTTP/1.1 over cleartext  TCP.  The incoming HTTP/1.1
     connection  can  be  upgraded  to  HTTP/2  through  HTTP
@@ -1037,11 +1104,22 @@ Logging
     * $alpn: ALPN identifier of the protocol which generates
       the response.   For HTTP/1,  ALPN is  always http/1.1,
       regardless of minor version.
-    * $ssl_cipher: cipher used for SSL/TLS connection.
-    * $ssl_protocol: protocol for SSL/TLS connection.
-    * $ssl_session_id: session ID for SSL/TLS connection.
-    * $ssl_session_reused:  "r"   if  SSL/TLS   session  was
+    * $tls_cipher: cipher used for SSL/TLS connection.
+    * $tls_client_fingerprint_sha256: SHA-256 fingerprint of
+      client certificate.
+    * $tls_client_fingerprint_sha1:  SHA-1   fingerprint  of
+      client certificate.
+    * $tls_client_subject_name:   subject  name   in  client
+      certificate.
+    * $tls_client_issuer_name:   issuer   name   in   client
+      certificate.
+    * $tls_client_serial:    serial    number   in    client
+      certificate.
+    * $tls_protocol: protocol for SSL/TLS connection.
+    * $tls_session_id: session ID for SSL/TLS connection.
+    * $tls_session_reused:  "r"   if  SSL/TLS   session  was
       reused.  Otherwise, "."
+    * $tls_sni: SNI server name for SSL/TLS connection.
     * $backend_host:  backend  host   used  to  fulfill  the
       request.  "-" if backend host is not available.
     * $backend_port:  backend  port   used  to  fulfill  the
@@ -1092,6 +1170,19 @@ HTTP
     Strip X-Forwarded-For  header field from  inbound client
     requests.
 
+.. option:: --no-add-x-forwarded-proto
+
+    Don't append  additional X-Forwarded-Proto  header field
+    to  the   backend  request.   If  inbound   client  sets
+    X-Forwarded-Proto,                                   and
+    :option:`--no-strip-incoming-x-forwarded-proto`  option  is  used,
+    they are passed to the backend.
+
+.. option:: --no-strip-incoming-x-forwarded-proto
+
+    Don't strip X-Forwarded-Proto  header field from inbound
+    client requests.
+
 .. option:: --add-forwarded=<LIST>
 
     Append RFC  7239 Forwarded header field  with parameters
@@ -1248,7 +1339,7 @@ API
 
     Set the maximum size of request body for API request.
 
-    Default: ``16K``
+    Default: ``32M``
 
 
 DNS
@@ -1330,6 +1421,16 @@ Process
     Run this program as <USER>.   This option is intended to
     be used to drop root privileges.
 
+.. option:: --single-process
+
+    Run this program in a  single process mode for debugging
+    purpose.  Without this option,  nghttpx creates at least
+    2  processes:  master  and worker  processes.   If  this
+    option is  used, master  and worker  are unified  into a
+    single process.  nghttpx still spawns additional process
+    if neverbleed is used.  In  the single process mode, the
+    signal handling feature is disabled.
+
 
 Scripting
 ~~~~~~~~~
@@ -1344,7 +1445,9 @@ Misc
 
 .. option:: --conf=<PATH>
 
-    Load configuration from <PATH>.
+    Load  configuration  from   <PATH>.   Please  note  that
+    nghttpx always  tries to read the  default configuration
+    file if :option:`--conf` is not given.
 
     Default: ``/etc/nghttpx/nghttpx.conf``
 
@@ -1424,7 +1527,7 @@ Error log
   <datetime> <master-pid> <current-pid> <thread-id> <level> (<filename>:<line>) <msg>
 
   <datetime>
-    It is a conbination of date and time when the log is written.  It
+    It is a combination of date and time when the log is written.  It
     is in ISO 8601 format.
 
   <master-pid>
@@ -1546,6 +1649,22 @@ 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
 ----------------------
 
@@ -1559,7 +1678,7 @@ 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.
 
@@ -1641,6 +1760,14 @@ 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
@@ -1687,7 +1814,7 @@ 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
@@ -1719,6 +1846,56 @@ 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:class:: Request
 
     Object to represent request from client.  The modification to
@@ -1963,7 +2140,7 @@ 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
+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`.

doc/nghttpx.h2r

@@ -49,7 +49,7 @@ Error log
   <datetime> <master-pid> <current-pid> <thread-id> <level> (<filename>:<line>) <msg>
 
   <datetime>
-    It is a conbination of date and time when the log is written.  It
+    It is a combination of date and time when the log is written.  It
     is in ISO 8601 format.
 
   <master-pid>
@@ -171,6 +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
 ----------------------
 
@@ -184,7 +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.
 
@@ -266,6 +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
@@ -312,7 +336,7 @@ 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
@@ -344,6 +368,56 @@ 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:class:: Request
 
     Object to represent request from client.  The modification to
@@ -588,7 +662,7 @@ 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
+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`.

doc/programmers-guide.rst

@@ -116,7 +116,10 @@ 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

doc/sources/building-android-binary.rst

@@ -2,7 +2,7 @@ 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>`_
+`Android NDK <https://developer.android.com/ndk/index.html>`_
 cross-compiler on Debian Linux.
 
 The easiest way to build android binary is use Dockerfile.android.

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-5.0.
 
 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.
@@ -35,7 +34,7 @@ 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
+clang-format-diff-5.0 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.

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
 ---------------

doc/sources/libnghttp2_asio.rst

@@ -290,7 +290,7 @@ 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
+Receive server push and enable SSL/TLS
 ++++++++++++++++++++++++++++++++++++++
 
 .. code-block:: cpp

doc/sources/nghttpx-howto.rst

@@ -4,10 +4,10 @@ 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
 ------------
@@ -15,9 +15,7 @@ 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.
+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 +23,10 @@ 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.
 
 nghttpx can listen on multiple frontend addresses.  This is achieved
 by using multiple :option:`--frontend` options.  For each frontend
@@ -45,17 +42,17 @@ 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 +63,18 @@ 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 +88,7 @@ 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 +98,8 @@ 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
 
@@ -297,13 +293,31 @@ 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:
 
@@ -371,7 +385,7 @@ parameter in :option:`--backend` option, like so:
 
 .. code-block:: text
 
-   backend=foo.example.com;;dns
+   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`.
@@ -387,6 +401,28 @@ like so:
 
    frontend=*,443;proxyproto
 
+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.
+
 PSK cipher suites
 -----------------
 

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);

examples/CMakeLists.txt

@@ -7,11 +7,8 @@ if(ENABLE_EXAMPLES)
     COMPILE_FLAGS "${WARNCXXFLAGS} ${CXX1XCXXFLAGS}")
 
   include_directories(
-    ${CMAKE_SOURCE_DIR}
-    ${CMAKE_SOURCE_DIR}/lib/includes
-    ${CMAKE_BINARY_DIR}/lib/includes
-    ${CMAKE_SOURCE_DIR}/src/includes
-    ${CMAKE_SOURCE_DIR}/third-party
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    "${CMAKE_CURRENT_SOURCE_DIR}/../third-party"
 
     ${LIBEVENT_INCLUDE_DIRS}
     ${OPENSSL_INCLUDE_DIRS}

examples/Makefile.am

@@ -62,11 +62,11 @@ ASIOCPPFLAGS = ${AM_CPPFLAGS} ${BOOST_CPPFLAGS}
 ASIOLDADD = $(top_builddir)/lib/libnghttp2.la \
 	$(top_builddir)/src/libnghttp2_asio.la @JEMALLOC_LIBS@ \
 	$(top_builddir)/third-party/libhttp-parser.la \
+	@OPENSSL_LIBS@ \
 	${BOOST_LDFLAGS} \
 	${BOOST_ASIO_LIB} \
 	${BOOST_THREAD_LIB} \
 	${BOOST_SYSTEM_LIB} \
-	@OPENSSL_LIBS@ \
 	@APPLDFLAGS@
 
 asio_sv_SOURCES = asio-sv.cc

examples/client.c

@@ -159,10 +159,13 @@ static void diec(const char *func, int error_code) {
  * bytes actually written. See the documentation of
  * nghttp2_send_callback for the details.
  */
-static ssize_t send_callback(nghttp2_session *session _U_, const uint8_t *data,
-                             size_t length, int flags _U_, void *user_data) {
+static ssize_t send_callback(nghttp2_session *session, const uint8_t *data,
+                             size_t length, int flags, void *user_data) {
   struct Connection *connection;
   int rv;
+  (void)session;
+  (void)flags;
+
   connection = (struct Connection *)user_data;
   connection->want_io = IO_NONE;
   ERR_clear_error();
@@ -186,10 +189,13 @@ static ssize_t send_callback(nghttp2_session *session _U_, const uint8_t *data,
  * |length| bytes. Returns the number of bytes stored in |buf|. See
  * the documentation of nghttp2_recv_callback for the details.
  */
-static ssize_t recv_callback(nghttp2_session *session _U_, uint8_t *buf,
-                             size_t length, int flags _U_, void *user_data) {
+static ssize_t recv_callback(nghttp2_session *session, uint8_t *buf,
+                             size_t length, int flags, void *user_data) {
   struct Connection *connection;
   int rv;
+  (void)session;
+  (void)flags;
+
   connection = (struct Connection *)user_data;
   connection->want_io = IO_NONE;
   ERR_clear_error();
@@ -210,9 +216,10 @@ static ssize_t recv_callback(nghttp2_session *session _U_, uint8_t *buf,
 }
 
 static int on_frame_send_callback(nghttp2_session *session,
-                                  const nghttp2_frame *frame,
-                                  void *user_data _U_) {
+                                  const nghttp2_frame *frame, void *user_data) {
   size_t i;
+  (void)user_data;
+
   switch (frame->hd.type) {
   case NGHTTP2_HEADERS:
     if (nghttp2_session_get_stream_user_data(session, frame->hd.stream_id)) {
@@ -237,9 +244,10 @@ static int on_frame_send_callback(nghttp2_session *session,
 }
 
 static int on_frame_recv_callback(nghttp2_session *session,
-                                  const nghttp2_frame *frame,
-                                  void *user_data _U_) {
+                                  const nghttp2_frame *frame, void *user_data) {
   size_t i;
+  (void)user_data;
+
   switch (frame->hd.type) {
   case NGHTTP2_HEADERS:
     if (frame->headers.cat == NGHTTP2_HCAT_RESPONSE) {
@@ -274,9 +282,11 @@ static int on_frame_recv_callback(nghttp2_session *session,
  * we submit GOAWAY and close the session.
  */
 static int on_stream_close_callback(nghttp2_session *session, int32_t stream_id,
-                                    uint32_t error_code _U_,
-                                    void *user_data _U_) {
+                                    uint32_t error_code, void *user_data) {
   struct Request *req;
+  (void)error_code;
+  (void)user_data;
+
   req = nghttp2_session_get_stream_user_data(session, stream_id);
   if (req) {
     int rv;
@@ -293,11 +303,13 @@ static int on_stream_close_callback(nghttp2_session *session, int32_t stream_id,
  * The implementation of nghttp2_on_data_chunk_recv_callback type. We
  * use this function to print the received response body.
  */
-static int on_data_chunk_recv_callback(nghttp2_session *session,
-                                       uint8_t flags _U_, int32_t stream_id,
-                                       const uint8_t *data, size_t len,
-                                       void *user_data _U_) {
+static int on_data_chunk_recv_callback(nghttp2_session *session, uint8_t flags,
+                                       int32_t stream_id, const uint8_t *data,
+                                       size_t len, void *user_data) {
   struct Request *req;
+  (void)flags;
+  (void)user_data;
+
   req = nghttp2_session_get_stream_user_data(session, stream_id);
   if (req) {
     printf("[INFO] C <---------------------------- S (DATA chunk)\n"
@@ -338,10 +350,13 @@ static void setup_nghttp2_callbacks(nghttp2_session_callbacks *callbacks) {
  * HTTP/2 protocol, if server does not offer HTTP/2 the nghttp2
  * library supports, we terminate program.
  */
-static int select_next_proto_cb(SSL *ssl _U_, unsigned char **out,
+static int select_next_proto_cb(SSL *ssl, unsigned char **out,
                                 unsigned char *outlen, const unsigned char *in,
-                                unsigned int inlen, void *arg _U_) {
+                                unsigned int inlen, void *arg) {
   int rv;
+  (void)ssl;
+  (void)arg;
+
   /* nghttp2_select_next_protocol() selects HTTP/2 protocol the
      nghttp2 library supports. */
   rv = nghttp2_select_next_protocol(out, outlen, in, inlen);

examples/deflate.c

@@ -44,7 +44,7 @@ static void deflate(nghttp2_hd_deflater *deflater,
 static int inflate_header_block(nghttp2_hd_inflater *inflater, uint8_t *in,
                                 size_t inlen, int final);
 
-int main(int argc _U_, char **argv _U_) {
+int main() {
   int rv;
   nghttp2_hd_deflater *deflater;
   nghttp2_hd_inflater *inflater;

examples/libevent-client.c

@@ -199,22 +199,27 @@ static void print_headers(FILE *f, nghttp2_nv *nva, size_t nvlen) {
 /* nghttp2_send_callback. Here we transmit the |data|, |length| bytes,
    to the network. Because we are using libevent bufferevent, we just
    write those bytes into bufferevent buffer. */
-static ssize_t send_callback(nghttp2_session *session _U_, const uint8_t *data,
-                             size_t length, int flags _U_, void *user_data) {
+static ssize_t send_callback(nghttp2_session *session, const uint8_t *data,
+                             size_t length, int flags, void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
   struct bufferevent *bev = session_data->bev;
+  (void)session;
+  (void)flags;
+
   bufferevent_write(bev, data, length);
   return (ssize_t)length;
 }
 
 /* nghttp2_on_header_callback: Called when nghttp2 library emits
    single header name/value pair. */
-static int on_header_callback(nghttp2_session *session _U_,
+static int on_header_callback(nghttp2_session *session,
                               const nghttp2_frame *frame, const uint8_t *name,
                               size_t namelen, const uint8_t *value,
-                              size_t valuelen, uint8_t flags _U_,
-                              void *user_data) {
+                              size_t valuelen, uint8_t flags, void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
+  (void)session;
+  (void)flags;
+
   switch (frame->hd.type) {
   case NGHTTP2_HEADERS:
     if (frame->headers.cat == NGHTTP2_HCAT_RESPONSE &&
@@ -229,10 +234,12 @@ static int on_header_callback(nghttp2_session *session _U_,
 
 /* nghttp2_on_begin_headers_callback: Called when nghttp2 library gets
    started to receive header block. */
-static int on_begin_headers_callback(nghttp2_session *session _U_,
+static int on_begin_headers_callback(nghttp2_session *session,
                                      const nghttp2_frame *frame,
                                      void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
+  (void)session;
+
   switch (frame->hd.type) {
   case NGHTTP2_HEADERS:
     if (frame->headers.cat == NGHTTP2_HCAT_RESPONSE &&
@@ -247,9 +254,11 @@ static int on_begin_headers_callback(nghttp2_session *session _U_,
 
 /* nghttp2_on_frame_recv_callback: Called when nghttp2 library
    received a complete frame from the remote peer. */
-static int on_frame_recv_callback(nghttp2_session *session _U_,
+static int on_frame_recv_callback(nghttp2_session *session,
                                   const nghttp2_frame *frame, void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
+  (void)session;
+
   switch (frame->hd.type) {
   case NGHTTP2_HEADERS:
     if (frame->headers.cat == NGHTTP2_HCAT_RESPONSE &&
@@ -266,11 +275,13 @@ static int on_frame_recv_callback(nghttp2_session *session _U_,
    is meant to the stream we initiated, print the received data in
    stdout, so that the user can redirect its output to the file
    easily. */
-static int on_data_chunk_recv_callback(nghttp2_session *session _U_,
-                                       uint8_t flags _U_, int32_t stream_id,
-                                       const uint8_t *data, size_t len,
-                                       void *user_data) {
+static int on_data_chunk_recv_callback(nghttp2_session *session, uint8_t flags,
+                                       int32_t stream_id, const uint8_t *data,
+                                       size_t len, void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
+  (void)session;
+  (void)flags;
+
   if (session_data->stream_data->stream_id == stream_id) {
     fwrite(data, 1, len, stdout);
   }
@@ -300,9 +311,12 @@ static int on_stream_close_callback(nghttp2_session *session, int32_t stream_id,
 /* NPN TLS extension client callback. We check that server advertised
    the HTTP/2 protocol the nghttp2 library supports. If not, exit
    the program. */
-static int select_next_proto_cb(SSL *ssl _U_, unsigned char **out,
+static int select_next_proto_cb(SSL *ssl, unsigned char **out,
                                 unsigned char *outlen, const unsigned char *in,
-                                unsigned int inlen, void *arg _U_) {
+                                unsigned int inlen, void *arg) {
+  (void)ssl;
+  (void)arg;
+
   if (nghttp2_select_next_protocol(out, outlen, in, inlen) <= 0) {
     errx(1, "Server did not advertise " NGHTTP2_PROTO_VERSION_ID);
   }
@@ -461,8 +475,10 @@ static void readcb(struct bufferevent *bev, void *ptr) {
    receiving GOAWAY, we check the some conditions on the nghttp2
    library and output buffer of bufferevent. If it indicates we have
    no business to this session, tear down the connection. */
-static void writecb(struct bufferevent *bev _U_, void *ptr) {
+static void writecb(struct bufferevent *bev, void *ptr) {
   http2_session_data *session_data = (http2_session_data *)ptr;
+  (void)bev;
+
   if (nghttp2_session_want_read(session_data->session) == 0 &&
       nghttp2_session_want_write(session_data->session) == 0 &&
       evbuffer_get_length(bufferevent_get_output(session_data->bev)) == 0) {
@@ -532,6 +548,7 @@ static void initiate_connection(struct event_base *evbase, SSL_CTX *ssl_ctx,
   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);

examples/libevent-server.c

@@ -109,18 +109,23 @@ struct app_context {
 static unsigned char next_proto_list[256];
 static size_t next_proto_list_len;
 
-static int next_proto_cb(SSL *s _U_, const unsigned char **data,
-                         unsigned int *len, void *arg _U_) {
+static int next_proto_cb(SSL *ssl, const unsigned char **data,
+                         unsigned int *len, void *arg) {
+  (void)ssl;
+  (void)arg;
+
   *data = next_proto_list;
   *len = (unsigned int)next_proto_list_len;
   return SSL_TLSEXT_ERR_OK;
 }
 
 #if OPENSSL_VERSION_NUMBER >= 0x10002000L
-static int alpn_select_proto_cb(SSL *ssl _U_, const unsigned char **out,
+static int alpn_select_proto_cb(SSL *ssl, const unsigned char **out,
                                 unsigned char *outlen, const unsigned char *in,
-                                unsigned int inlen, void *arg _U_) {
+                                unsigned int inlen, void *arg) {
   int rv;
+  (void)ssl;
+  (void)arg;
 
   rv = nghttp2_select_next_protocol((unsigned char **)out, outlen, in, inlen);
 
@@ -197,8 +202,10 @@ static void add_stream(http2_session_data *session_data,
   }
 }
 
-static void remove_stream(http2_session_data *session_data _U_,
+static void remove_stream(http2_session_data *session_data,
                           http2_stream_data *stream_data) {
+  (void)session_data;
+
   stream_data->prev->next = stream_data->next;
   if (stream_data->next) {
     stream_data->next->prev = stream_data->prev;
@@ -243,6 +250,7 @@ static http2_session_data *create_http2_session_data(app_context *app_ctx,
   session_data->bev = bufferevent_openssl_socket_new(
       app_ctx->evbase, fd, ssl, BUFFEREVENT_SSL_ACCEPTING,
       BEV_OPT_CLOSE_ON_FREE | BEV_OPT_DEFER_CALLBACKS);
+  bufferevent_enable(session_data->bev, EV_READ | EV_WRITE);
   rv = getnameinfo(addr, (socklen_t)addrlen, host, sizeof(host), NULL, 0,
                    NI_NUMERICHOST);
   if (rv != 0) {
@@ -309,10 +317,13 @@ static int session_recv(http2_session_data *session_data) {
   return 0;
 }
 
-static ssize_t send_callback(nghttp2_session *session _U_, const uint8_t *data,
-                             size_t length, int flags _U_, void *user_data) {
+static ssize_t send_callback(nghttp2_session *session, const uint8_t *data,
+                             size_t length, int flags, void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
   struct bufferevent *bev = session_data->bev;
+  (void)session;
+  (void)flags;
+
   /* Avoid excessive buffering in server side. */
   if (evbuffer_get_length(bufferevent_get_output(session_data->bev)) >=
       OUTPUT_WOULDBLOCK_THRESHOLD) {
@@ -375,13 +386,17 @@ static char *percent_decode(const uint8_t *value, size_t valuelen) {
   return res;
 }
 
-static ssize_t file_read_callback(nghttp2_session *session _U_,
-                                  int32_t stream_id _U_, uint8_t *buf,
-                                  size_t length, uint32_t *data_flags,
+static ssize_t file_read_callback(nghttp2_session *session, int32_t stream_id,
+                                  uint8_t *buf, size_t length,
+                                  uint32_t *data_flags,
                                   nghttp2_data_source *source,
-                                  void *user_data _U_) {
+                                  void *user_data) {
   int fd = source->fd;
   ssize_t r;
+  (void)session;
+  (void)stream_id;
+  (void)user_data;
+
   while ((r = read(fd, buf, length)) == -1 && errno == EINTR)
     ;
   if (r == -1) {
@@ -454,10 +469,12 @@ static int error_reply(nghttp2_session *session,
 static int on_header_callback(nghttp2_session *session,
                               const nghttp2_frame *frame, const uint8_t *name,
                               size_t namelen, const uint8_t *value,
-                              size_t valuelen, uint8_t flags _U_,
-                              void *user_data _U_) {
+                              size_t valuelen, uint8_t flags, void *user_data) {
   http2_stream_data *stream_data;
   const char PATH[] = ":path";
+  (void)flags;
+  (void)user_data;
+
   switch (frame->hd.type) {
   case NGHTTP2_HEADERS:
     if (frame->headers.cat != NGHTTP2_HCAT_REQUEST) {
@@ -570,9 +587,10 @@ static int on_frame_recv_callback(nghttp2_session *session,
 }
 
 static int on_stream_close_callback(nghttp2_session *session, int32_t stream_id,
-                                    uint32_t error_code _U_, void *user_data) {
+                                    uint32_t error_code, void *user_data) {
   http2_session_data *session_data = (http2_session_data *)user_data;
   http2_stream_data *stream_data;
+  (void)error_code;
 
   stream_data = nghttp2_session_get_stream_user_data(session, stream_id);
   if (!stream_data) {
@@ -625,8 +643,10 @@ static int send_server_connection_header(http2_session_data *session_data) {
 
 /* readcb for bufferevent after client connection header was
    checked. */
-static void readcb(struct bufferevent *bev _U_, void *ptr) {
+static void readcb(struct bufferevent *bev, void *ptr) {
   http2_session_data *session_data = (http2_session_data *)ptr;
+  (void)bev;
+
   if (session_recv(session_data) != 0) {
     delete_http2_session_data(session_data);
     return;
@@ -658,12 +678,13 @@ static void writecb(struct bufferevent *bev, void *ptr) {
 }
 
 /* eventcb for bufferevent */
-static void eventcb(struct bufferevent *bev _U_, short events, void *ptr) {
+static void eventcb(struct bufferevent *bev, short events, void *ptr) {
   http2_session_data *session_data = (http2_session_data *)ptr;
   if (events & BEV_EVENT_CONNECTED) {
     const unsigned char *alpn = NULL;
     unsigned int alpnlen = 0;
     SSL *ssl;
+    (void)bev;
 
     fprintf(stderr, "%s connected\n", session_data->client_addr);
 
@@ -703,10 +724,11 @@ static void eventcb(struct bufferevent *bev _U_, short events, void *ptr) {
 }
 
 /* callback for evconnlistener */
-static void acceptcb(struct evconnlistener *listener _U_, int fd,
+static void acceptcb(struct evconnlistener *listener, int fd,
                      struct sockaddr *addr, int addrlen, void *arg) {
   app_context *app_ctx = (app_context *)arg;
   http2_session_data *session_data;
+  (void)listener;
 
   session_data = create_http2_session_data(app_ctx, fd, addr, addrlen);
 

fuzz/README.rst

@@ -23,8 +23,8 @@ following compiler/linker flags:
 
 .. code-block:: text
 
-    CPPFLAGS="-fsanitize-coverage=edge -fsanitize=addres"
-    LDFLAGS="-fsanitize-coverage=edge -fsanitize=addres"
+    CPPFLAGS="-fsanitize-coverage=edge -fsanitize=address"
+    LDFLAGS="-fsanitize-coverage=edge -fsanitize=address"
 
 Then, fuzz_target.cc can be built using the following command:
 

gennghttpxfun.py

@@ -163,6 +163,12 @@ OPTIONS = [
     "redirect-https-port",
     "frontend-max-requests",
     "single-thread",
+    "single-process",
+    "no-add-x-forwarded-proto",
+    "no-strip-incoming-x-forwarded-proto",
+    "ocsp-startup",
+    "no-verify-ocsp",
+    "verify-client-tolerate-expired",
 ]
 
 LOGVARS = [
@@ -181,6 +187,16 @@ LOGVARS = [
     "ssl_protocol",
     "ssl_session_id",
     "ssl_session_reused",
+    "tls_cipher",
+    "tls_protocol",
+    "tls_session_id",
+    "tls_session_reused",
+    "tls_sni",
+    "tls_client_fingerprint_sha256",
+    "tls_client_fingerprint_sha1",
+    "tls_client_subject_name",
+    "tls_client_issuer_name",
+    "tls_client_serial",
     "backend_host",
     "backend_port",
 ]

integration-tests/Makefile.am

@@ -24,7 +24,6 @@
 GO_FILES = \
 	nghttpx_http1_test.go \
 	nghttpx_http2_test.go \
-	nghttpx_spdy_test.go \
 	server_tester.go
 
 EXTRA_DIST = \
@@ -43,7 +42,6 @@ EXTRA_DIST = \
 itprep:
 	go get -d -v golang.org/x/net/http2
 	go get -d -v github.com/tatsuhiro-t/go-nghttp2
-	go get -d -v github.com/tatsuhiro-t/spdy
 	go get -d -v golang.org/x/net/websocket
 
 it:

integration-tests/nghttpx_http1_test.go

@@ -9,6 +9,7 @@ import (
 	"golang.org/x/net/websocket"
 	"io"
 	"net/http"
+	"regexp"
 	"syscall"
 	"testing"
 	"time"
@@ -125,6 +126,54 @@ Content-Length: 0
 // 	}
 // }
 
+// TestH1H1AffinityCookie tests that affinity cookie is sent back in
+// cleartext http.
+func TestH1H1AffinityCookie(t *testing.T) {
+	st := newServerTester([]string{"--affinity-cookie"}, t, noopHandler)
+	defer st.Close()
+
+	res, err := st.http1(requestParam{
+		name: "TestH1H1AffinityCookie",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http1() = %v", err)
+	}
+
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+
+	const pattern = `affinity=[0-9a-f]{8}; Path=/foo/bar`
+	validCookie := regexp.MustCompile(pattern)
+	if got := res.header.Get("Set-Cookie"); !validCookie.MatchString(got) {
+		t.Errorf("Set-Cookie: %v; want pattern %v", got, pattern)
+	}
+}
+
+// TestH1H1AffinityCookieTLS tests that affinity cookie is sent back
+// in https.
+func TestH1H1AffinityCookieTLS(t *testing.T) {
+	st := newServerTesterTLS([]string{"--alpn-h1", "--affinity-cookie"}, t, noopHandler)
+	defer st.Close()
+
+	res, err := st.http1(requestParam{
+		name: "TestH1H1AffinityCookieTLS",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http1() = %v", err)
+	}
+
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+
+	const pattern = `affinity=[0-9a-f]{8}; Path=/foo/bar; Secure`
+	validCookie := regexp.MustCompile(pattern)
+	if got := res.header.Get("Set-Cookie"); !validCookie.MatchString(got) {
+		t.Errorf("Set-Cookie: %v; want pattern %v", got, pattern)
+	}
+}
+
 // TestH1H1GracefulShutdown tests graceful shutdown.
 func TestH1H1GracefulShutdown(t *testing.T) {
 	st := newServerTester(nil, t, noopHandler)
@@ -162,7 +211,7 @@ func TestH1H1GracefulShutdown(t *testing.T) {
 	want := io.EOF
 	b := make([]byte, 256)
 	if _, err := st.conn.Read(b); err == nil || err != want {
-		t.Errorf("st.conn.Read(): %v; want %v, %v", err, want)
+		t.Errorf("st.conn.Read(): %v; want %v", err, want)
 	}
 }
 

integration-tests/nghttpx_http2_test.go

@@ -35,6 +35,105 @@ func TestH2H1PlainGET(t *testing.T) {
 	}
 }
 
+// TestH2H1AddXfp tests that server appends :scheme to the existing
+// x-forwarded-proto header field.
+func TestH2H1AddXfp(t *testing.T) {
+	st := newServerTester([]string{"--no-strip-incoming-x-forwarded-proto"}, t, func(w http.ResponseWriter, r *http.Request) {
+		xfp := r.Header.Get("X-Forwarded-Proto")
+		if got, want := xfp, "foo, http"; got != want {
+			t.Errorf("X-Forwarded-Proto = %q; want %q", got, want)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1AddXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H1NoAddXfp tests that server does not append :scheme to the
+// existing x-forwarded-proto header field.
+func TestH2H1NoAddXfp(t *testing.T) {
+	st := newServerTester([]string{"--no-add-x-forwarded-proto", "--no-strip-incoming-x-forwarded-proto"}, t, func(w http.ResponseWriter, r *http.Request) {
+		xfp := r.Header.Get("X-Forwarded-Proto")
+		if got, want := xfp, "foo"; got != want {
+			t.Errorf("X-Forwarded-Proto = %q; want %q", got, want)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1NoAddXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H1StripXfp tests that server strips incoming
+// x-forwarded-proto header field.
+func TestH2H1StripXfp(t *testing.T) {
+	st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
+		xfp := r.Header.Get("X-Forwarded-Proto")
+		if got, want := xfp, "http"; got != want {
+			t.Errorf("X-Forwarded-Proto = %q; want %q", got, want)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1StripXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H1StripNoAddXfp tests that server strips incoming
+// x-forwarded-proto header field, and does not add another.
+func TestH2H1StripNoAddXfp(t *testing.T) {
+	st := newServerTester([]string{"--no-add-x-forwarded-proto"}, t, func(w http.ResponseWriter, r *http.Request) {
+		if got, found := r.Header["X-Forwarded-Proto"]; found {
+			t.Errorf("X-Forwarded-Proto = %q; want nothing", got)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1StripNoAddXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
 // TestH2H1AddXff tests that server generates X-Forwarded-For header
 // field when forwarding request to backend.
 func TestH2H1AddXff(t *testing.T) {
@@ -1014,14 +1113,45 @@ func TestH2H1Upgrade(t *testing.T) {
 	}
 }
 
+// TestH2H1ProxyProtocolV1ForwardedForObfuscated tests that Forwarded
+// header field includes obfuscated address even if PROXY protocol
+// version 1 containing TCP4 entry is accepted.
+func TestH2H1ProxyProtocolV1ForwardedForObfuscated(t *testing.T) {
+	pattern := fmt.Sprintf(`^for=_[^;]+$`)
+	validFwd := regexp.MustCompile(pattern)
+	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for", "--add-forwarded=for", "--forwarded-for=obfuscated"}, t, func(w http.ResponseWriter, r *http.Request) {
+		if got := r.Header.Get("Forwarded"); !validFwd.MatchString(got) {
+			t.Errorf("Forwarded: %v; want pattern %v", got, pattern)
+		}
+	})
+	defer st.Close()
+
+	st.conn.Write([]byte("PROXY TCP4 192.168.0.2 192.168.0.100 12345 8080\r\n"))
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1ProxyProtocolV1ForwardedForObfuscated",
+	})
+
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 200; got != want {
+		t.Errorf("res.status: %v; want %v", got, want)
+	}
+}
+
 // TestH2H1ProxyProtocolV1TCP4 tests PROXY protocol version 1
 // containing TCP4 entry is accepted and X-Forwarded-For contains
 // advertised src address.
 func TestH2H1ProxyProtocolV1TCP4(t *testing.T) {
-	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for"}, t, func(w http.ResponseWriter, r *http.Request) {
+	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for", "--add-forwarded=for", "--forwarded-for=ip"}, t, func(w http.ResponseWriter, r *http.Request) {
 		if got, want := r.Header.Get("X-Forwarded-For"), "192.168.0.2"; got != want {
 			t.Errorf("X-Forwarded-For: %v; want %v", got, want)
 		}
+		if got, want := r.Header.Get("Forwarded"), "for=192.168.0.2"; got != want {
+			t.Errorf("Forwarded: %v; want %v", got, want)
+		}
 	})
 	defer st.Close()
 
@@ -1044,10 +1174,13 @@ func TestH2H1ProxyProtocolV1TCP4(t *testing.T) {
 // containing TCP6 entry is accepted and X-Forwarded-For contains
 // advertised src address.
 func TestH2H1ProxyProtocolV1TCP6(t *testing.T) {
-	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for"}, t, func(w http.ResponseWriter, r *http.Request) {
+	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for", "--add-forwarded=for", "--forwarded-for=ip"}, t, func(w http.ResponseWriter, r *http.Request) {
 		if got, want := r.Header.Get("X-Forwarded-For"), "2001:0db8:85a3:0000:0000:8a2e:0370:7334"; got != want {
 			t.Errorf("X-Forwarded-For: %v; want %v", got, want)
 		}
+		if got, want := r.Header.Get("Forwarded"), `for="[2001:0db8:85a3:0000:0000:8a2e:0370:7334]"`; got != want {
+			t.Errorf("Forwarded: %v; want %v", got, want)
+		}
 	})
 	defer st.Close()
 
@@ -1069,9 +1202,12 @@ func TestH2H1ProxyProtocolV1TCP6(t *testing.T) {
 // TestH2H1ProxyProtocolV1Unknown tests PROXY protocol version 1
 // containing UNKNOWN entry is accepted.
 func TestH2H1ProxyProtocolV1Unknown(t *testing.T) {
-	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for"}, t, func(w http.ResponseWriter, r *http.Request) {
+	st := newServerTester([]string{"--accept-proxy-protocol", "--add-x-forwarded-for", "--add-forwarded=for", "--forwarded-for=ip"}, t, func(w http.ResponseWriter, r *http.Request) {
 		if got, notWant := r.Header.Get("X-Forwarded-For"), "192.168.0.2"; got == notWant {
-			t.Errorf("X-Forwarded-For: %v")
+			t.Errorf("X-Forwarded-For: %v; want something else", got)
+		}
+		if got, notWant := r.Header.Get("Forwarded"), "for=192.168.0.2"; got == notWant {
+			t.Errorf("Forwarded: %v; want something else", got)
 		}
 	})
 	defer st.Close()
@@ -1449,6 +1585,175 @@ func TestH2H1HTTPSRedirectPort(t *testing.T) {
 	}
 }
 
+// TestH2H1Code204 tests that 204 response without content-length, and
+// transfer-encoding is valid.
+func TestH2H1Code204(t *testing.T) {
+	st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNoContent)
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1Code204",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 204; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H1Code204CL0 tests that 204 response with content-length: 0
+// is allowed.
+func TestH2H1Code204CL0(t *testing.T) {
+	st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
+		hj, ok := w.(http.Hijacker)
+		if !ok {
+			http.Error(w, "Could not hijack the connection", http.StatusInternalServerError)
+			return
+		}
+		conn, bufrw, err := hj.Hijack()
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer conn.Close()
+		bufrw.WriteString("HTTP/1.1 204\r\nContent-Length: 0\r\n\r\n")
+		bufrw.Flush()
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1Code204CL0",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 204; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+
+	if got, found := res.header["Content-Length"]; found {
+		t.Errorf("Content-Length = %v, want nothing", got)
+	}
+}
+
+// TestH2H1Code204CLNonzero tests that 204 response with nonzero
+// content-length is not allowed.
+func TestH2H1Code204CLNonzero(t *testing.T) {
+	st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
+		hj, ok := w.(http.Hijacker)
+		if !ok {
+			http.Error(w, "Could not hijack the connection", http.StatusInternalServerError)
+			return
+		}
+		conn, bufrw, err := hj.Hijack()
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer conn.Close()
+		bufrw.WriteString("HTTP/1.1 204\r\nContent-Length: 1\r\n\r\n")
+		bufrw.Flush()
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1Code204CLNonzero",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 502; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H1Code204TE tests that 204 response with transfer-encoding is
+// not allowed.
+func TestH2H1Code204TE(t *testing.T) {
+	st := newServerTester(nil, t, func(w http.ResponseWriter, r *http.Request) {
+		hj, ok := w.(http.Hijacker)
+		if !ok {
+			http.Error(w, "Could not hijack the connection", http.StatusInternalServerError)
+			return
+		}
+		conn, bufrw, err := hj.Hijack()
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		defer conn.Close()
+		bufrw.WriteString("HTTP/1.1 204\r\nTransfer-Encoding: chunked\r\n\r\n")
+		bufrw.Flush()
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1Code204TE",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 502; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H1AffinityCookie tests that affinity cookie is sent back in
+// cleartext http.
+func TestH2H1AffinityCookie(t *testing.T) {
+	st := newServerTester([]string{"--affinity-cookie"}, t, noopHandler)
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H1AffinityCookie",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+
+	const pattern = `affinity=[0-9a-f]{8}; Path=/foo/bar`
+	validCookie := regexp.MustCompile(pattern)
+	if got := res.header.Get("Set-Cookie"); !validCookie.MatchString(got) {
+		t.Errorf("Set-Cookie: %v; want pattern %v", got, pattern)
+	}
+}
+
+// TestH2H1AffinityCookieTLS tests that affinity cookie is sent back
+// in https.
+func TestH2H1AffinityCookieTLS(t *testing.T) {
+	st := newServerTesterTLS([]string{"--affinity-cookie"}, t, noopHandler)
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name:   "TestH2H1AffinityCookieTLS",
+		scheme: "https",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+
+	const pattern = `affinity=[0-9a-f]{8}; Path=/foo/bar; Secure`
+	validCookie := regexp.MustCompile(pattern)
+	if got := res.header.Get("Set-Cookie"); !validCookie.MatchString(got) {
+		t.Errorf("Set-Cookie: %v; want pattern %v", got, pattern)
+	}
+}
+
 // TestH2H1GracefulShutdown tests graceful shutdown.
 func TestH2H1GracefulShutdown(t *testing.T) {
 	st := newServerTester(nil, t, noopHandler)
@@ -1653,6 +1958,105 @@ func TestH2H2TLSXfp(t *testing.T) {
 	}
 }
 
+// TestH2H2AddXfp tests that server appends :scheme to the existing
+// x-forwarded-proto header field.
+func TestH2H2AddXfp(t *testing.T) {
+	st := newServerTesterTLS([]string{"--http2-bridge", "--no-strip-incoming-x-forwarded-proto"}, t, func(w http.ResponseWriter, r *http.Request) {
+		xfp := r.Header.Get("X-Forwarded-Proto")
+		if got, want := xfp, "foo, http"; got != want {
+			t.Errorf("X-Forwarded-Proto = %q; want %q", got, want)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H2AddXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H2NoAddXfp tests that server does not append :scheme to the
+// existing x-forwarded-proto header field.
+func TestH2H2NoAddXfp(t *testing.T) {
+	st := newServerTesterTLS([]string{"--http2-bridge", "--no-add-x-forwarded-proto", "--no-strip-incoming-x-forwarded-proto"}, t, func(w http.ResponseWriter, r *http.Request) {
+		xfp := r.Header.Get("X-Forwarded-Proto")
+		if got, want := xfp, "foo"; got != want {
+			t.Errorf("X-Forwarded-Proto = %q; want %q", got, want)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H2NoAddXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H2StripXfp tests that server strips incoming
+// x-forwarded-proto header field.
+func TestH2H2StripXfp(t *testing.T) {
+	st := newServerTesterTLS([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) {
+		xfp := r.Header.Get("X-Forwarded-Proto")
+		if got, want := xfp, "http"; got != want {
+			t.Errorf("X-Forwarded-Proto = %q; want %q", got, want)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H2StripXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
+// TestH2H2StripNoAddXfp tests that server strips incoming
+// x-forwarded-proto header field, and does not add another.
+func TestH2H2StripNoAddXfp(t *testing.T) {
+	st := newServerTesterTLS([]string{"--http2-bridge", "--no-add-x-forwarded-proto"}, t, func(w http.ResponseWriter, r *http.Request) {
+		if got, found := r.Header["X-Forwarded-Proto"]; found {
+			t.Errorf("X-Forwarded-Proto = %q; want nothing", got)
+		}
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H2StripNoAddXfp",
+		header: []hpack.HeaderField{
+			pair("x-forwarded-proto", "foo"),
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+	if got, want := res.status, 200; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
 // TestH2H2AddXff tests that server generates X-Forwarded-For header
 // field when forwarding request to backend.
 func TestH2H2AddXff(t *testing.T) {
@@ -1961,6 +2365,26 @@ func TestH2H2DNS(t *testing.T) {
 	}
 }
 
+// TestH2H2Code204 tests that 204 response without content-length, and
+// transfer-encoding is valid.
+func TestH2H2Code204(t *testing.T) {
+	st := newServerTester([]string{"--http2-bridge"}, t, func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusNoContent)
+	})
+	defer st.Close()
+
+	res, err := st.http2(requestParam{
+		name: "TestH2H2Code204",
+	})
+	if err != nil {
+		t.Fatalf("Error st.http2() = %v", err)
+	}
+
+	if got, want := res.status, 204; got != want {
+		t.Errorf("status = %v; want %v", got, want)
+	}
+}
+
 // TestH2APIBackendconfig exercise backendconfig API endpoint routine
 // for successful case.
 func TestH2APIBackendconfig(t *testing.T) {

integration-tests/nghttpx_spdy_test.go

@@ -1,664 +0,0 @@
-package nghttp2
-
-import (
-	"encoding/json"
-	"github.com/tatsuhiro-t/spdy"
-	"golang.org/x/net/http2/hpack"
-	"net/http"
-	"testing"
-)
-
-// TestS3H1PlainGET tests whether simple SPDY GET request works.
-func TestS3H1PlainGET(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, noopHandler)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1PlainGET",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	want := 200
-	if got := res.status; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-}
-
-// TestS3H1BadRequestCL tests that server rejects request whose
-// content-length header field value does not match its request body
-// size.
-func TestS3H1BadRequestCL(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, noopHandler)
-	defer st.Close()
-
-	// we set content-length: 1024, but the actual request body is
-	// 3 bytes.
-	res, err := st.spdy(requestParam{
-		name:   "TestS3H1BadRequestCL",
-		method: "POST",
-		header: []hpack.HeaderField{
-			pair("content-length", "1024"),
-		},
-		body: []byte("foo"),
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	want := spdy.ProtocolError
-	if got := res.spdyRstErrCode; got != want {
-		t.Errorf("res.spdyRstErrCode = %v; want %v", got, want)
-	}
-}
-
-// TestS3H1MultipleRequestCL tests that server rejects request with
-// multiple Content-Length request header fields.
-func TestS3H1MultipleRequestCL(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Errorf("server should not forward bad request")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1MultipleRequestCL",
-		header: []hpack.HeaderField{
-			pair("content-length", "1"),
-			pair("content-length", "1"),
-		},
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	want := 400
-	if got := res.status; got != want {
-		t.Errorf("status: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1InvalidRequestCL tests that server rejects request with
-// Content-Length which cannot be parsed as a number.
-func TestS3H1InvalidRequestCL(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Errorf("server should not forward bad request")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1InvalidRequestCL",
-		header: []hpack.HeaderField{
-			pair("content-length", ""),
-		},
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	want := 400
-	if got := res.status; got != want {
-		t.Errorf("status: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1GenerateVia tests that server generates Via header field to and
-// from backend server.
-func TestS3H1GenerateVia(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		if got, want := r.Header.Get("Via"), "1.1 nghttpx"; got != want {
-			t.Errorf("Via: %v; want %v", got, want)
-		}
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1GenerateVia",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.header.Get("Via"), "1.1 nghttpx"; got != want {
-		t.Errorf("Via: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1AppendVia tests that server adds value to existing Via
-// header field to and from backend server.
-func TestS3H1AppendVia(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		if got, want := r.Header.Get("Via"), "foo, 1.1 nghttpx"; got != want {
-			t.Errorf("Via: %v; want %v", got, want)
-		}
-		w.Header().Add("Via", "bar")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1AppendVia",
-		header: []hpack.HeaderField{
-			pair("via", "foo"),
-		},
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.header.Get("Via"), "bar, 1.1 nghttpx"; got != want {
-		t.Errorf("Via: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1NoVia tests that server does not add value to existing Via
-// header field to and from backend server.
-func TestS3H1NoVia(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--no-via"}, t, func(w http.ResponseWriter, r *http.Request) {
-		if got, want := r.Header.Get("Via"), "foo"; got != want {
-			t.Errorf("Via: %v; want %v", got, want)
-		}
-		w.Header().Add("Via", "bar")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1NoVia",
-		header: []hpack.HeaderField{
-			pair("via", "foo"),
-		},
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.header.Get("Via"), "bar"; got != want {
-		t.Errorf("Via: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1HeaderFieldBuffer tests that request with header fields
-// larger than configured buffer size is rejected.
-func TestS3H1HeaderFieldBuffer(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--request-header-field-buffer=10"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatal("execution path should not be here")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1HeaderFieldBuffer",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.spdyRstErrCode, spdy.InternalError; got != want {
-		t.Errorf("res.spdyRstErrCode: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1HeaderFields tests that request with header fields more
-// than configured number is rejected.
-func TestS3H1HeaderFields(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--max-request-header-fields=1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatal("execution path should not be here")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1HeaderFields",
-		// we have at least 5 pseudo-header fields sent, and
-		// that ensures that buffer limit exceeds.
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.spdyRstErrCode, spdy.InternalError; got != want {
-		t.Errorf("res.spdyRstErrCode: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1InvalidMethod tests that server rejects invalid method with
-// 501.
-func TestS3H1InvalidMethod(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Errorf("server should not forward this request")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:   "TestS3H1InvalidMethod",
-		method: "get",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 501; got != want {
-		t.Errorf("status: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1BadHost tests that server rejects request including bad
-// character in :host header field.
-func TestS3H1BadHost(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Errorf("server should not forward this request")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:      "TestS3H1BadHost",
-		authority: `foo\bar`,
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 400; got != want {
-		t.Errorf("status: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1BadScheme tests that server rejects request including bad
-// character in :scheme header field.
-func TestS3H1BadScheme(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Errorf("server should not forward this request")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:   "TestS3H1BadScheme",
-		scheme: `http*`,
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 400; got != want {
-		t.Errorf("status: %v; want %v", got, want)
-	}
-}
-
-// TestS3H1ReqPhaseSetHeader tests mruby request phase hook
-// modifies request header fields.
-func TestS3H1ReqPhaseSetHeader(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--mruby-file=" + testDir + "/req-set-header.rb"}, t, func(w http.ResponseWriter, r *http.Request) {
-		if got, want := r.Header.Get("User-Agent"), "mruby"; got != want {
-			t.Errorf("User-Agent = %v; want %v", got, want)
-		}
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1ReqPhaseSetHeader",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	if got, want := res.status, 200; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-}
-
-// TestS3H1ReqPhaseReturn tests mruby request phase hook returns
-// custom response.
-func TestS3H1ReqPhaseReturn(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--mruby-file=" + testDir + "/req-return.rb"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1ReqPhaseReturn",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	if got, want := res.status, 404; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-
-	hdtests := []struct {
-		k, v string
-	}{
-		{"content-length", "20"},
-		{"from", "mruby"},
-	}
-	for _, tt := range hdtests {
-		if got, want := res.header.Get(tt.k), tt.v; got != want {
-			t.Errorf("%v = %v; want %v", tt.k, got, want)
-		}
-	}
-
-	if got, want := string(res.body), "Hello World from req"; got != want {
-		t.Errorf("body = %v; want %v", got, want)
-	}
-}
-
-// TestS3H1RespPhaseSetHeader tests mruby response phase hook modifies
-// response header fields.
-func TestS3H1RespPhaseSetHeader(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--mruby-file=" + testDir + "/resp-set-header.rb"}, t, noopHandler)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1RespPhaseSetHeader",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	if got, want := res.status, 200; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-
-	if got, want := res.header.Get("alpha"), "bravo"; got != want {
-		t.Errorf("alpha = %v; want %v", got, want)
-	}
-}
-
-// TestS3H1RespPhaseReturn tests mruby response phase hook returns
-// custom response.
-func TestS3H1RespPhaseReturn(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--mruby-file=" + testDir + "/resp-return.rb"}, t, noopHandler)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H1RespPhaseReturn",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	if got, want := res.status, 404; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-
-	hdtests := []struct {
-		k, v string
-	}{
-		{"content-length", "21"},
-		{"from", "mruby"},
-	}
-	for _, tt := range hdtests {
-		if got, want := res.header.Get(tt.k), tt.v; got != want {
-			t.Errorf("%v = %v; want %v", tt.k, got, want)
-		}
-	}
-
-	if got, want := string(res.body), "Hello World from resp"; got != want {
-		t.Errorf("body = %v; want %v", got, want)
-	}
-}
-
-// // TestS3H2ConnectFailure tests that server handles the situation that
-// // connection attempt to HTTP/2 backend failed.
-// func TestS3H2ConnectFailure(t *testing.T) {
-// 	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--http2-bridge"}, t, noopHandler)
-// 	defer st.Close()
-
-// 	// simulate backend connect attempt failure
-// 	st.ts.Close()
-
-// 	res, err := st.spdy(requestParam{
-// 		name: "TestS3H2ConnectFailure",
-// 	})
-// 	if err != nil {
-// 		t.Fatalf("Error st.spdy() = %v", err)
-// 	}
-// 	want := 503
-// 	if got := res.status; got != want {
-// 		t.Errorf("status: %v; want %v", got, want)
-// 	}
-// }
-
-// TestS3H2ReqPhaseReturn tests mruby request phase hook returns
-// custom response.
-func TestS3H2ReqPhaseReturn(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--http2-bridge", "--mruby-file=" + testDir + "/req-return.rb"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H2ReqPhaseReturn",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	if got, want := res.status, 404; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-
-	hdtests := []struct {
-		k, v string
-	}{
-		{"content-length", "20"},
-		{"from", "mruby"},
-	}
-	for _, tt := range hdtests {
-		if got, want := res.header.Get(tt.k), tt.v; got != want {
-			t.Errorf("%v = %v; want %v", tt.k, got, want)
-		}
-	}
-
-	if got, want := string(res.body), "Hello World from req"; got != want {
-		t.Errorf("body = %v; want %v", got, want)
-	}
-}
-
-// TestS3H2RespPhaseReturn tests mruby response phase hook returns
-// custom response.
-func TestS3H2RespPhaseReturn(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--http2-bridge", "--mruby-file=" + testDir + "/resp-return.rb"}, t, noopHandler)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3H2RespPhaseReturn",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-
-	if got, want := res.status, 404; got != want {
-		t.Errorf("status = %v; want %v", got, want)
-	}
-
-	hdtests := []struct {
-		k, v string
-	}{
-		{"content-length", "21"},
-		{"from", "mruby"},
-	}
-	for _, tt := range hdtests {
-		if got, want := res.header.Get(tt.k), tt.v; got != want {
-			t.Errorf("%v = %v; want %v", tt.k, got, want)
-		}
-	}
-
-	if got, want := string(res.body), "Hello World from resp"; got != want {
-		t.Errorf("body = %v; want %v", got, want)
-	}
-}
-
-// TestS3APIBackendconfig exercise backendconfig API endpoint routine
-// for successful case.
-func TestS3APIBackendconfig(t *testing.T) {
-	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	}, 3010)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:   "TestS3APIBackendconfig",
-		path:   "/api/v1beta1/backendconfig",
-		method: "PUT",
-		body: []byte(`# comment
-backend=127.0.0.1,3011
-
-`),
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 200; got != want {
-		t.Errorf("res.status: %v; want %v", got, want)
-	}
-
-	var apiResp APIResponse
-	err = json.Unmarshal(res.body, &apiResp)
-	if err != nil {
-		t.Fatalf("Error unmarshaling API response: %v", err)
-	}
-	if got, want := apiResp.Status, "Success"; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-	if got, want := apiResp.Code, 200; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-}
-
-// TestS3APIBackendconfigQuery exercise backendconfig API endpoint
-// routine with query.
-func TestS3APIBackendconfigQuery(t *testing.T) {
-	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	}, 3010)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:   "TestS3APIBackendconfigQuery",
-		path:   "/api/v1beta1/backendconfig?foo=bar",
-		method: "PUT",
-		body: []byte(`# comment
-backend=127.0.0.1,3011
-
-`),
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 200; got != want {
-		t.Errorf("res.status: %v; want %v", got, want)
-	}
-
-	var apiResp APIResponse
-	err = json.Unmarshal(res.body, &apiResp)
-	if err != nil {
-		t.Fatalf("Error unmarshaling API response: %v", err)
-	}
-	if got, want := apiResp.Status, "Success"; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-	if got, want := apiResp.Code, 200; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-}
-
-// TestS3APIBackendconfigBadMethod exercise backendconfig API endpoint
-// routine with bad method.
-func TestS3APIBackendconfigBadMethod(t *testing.T) {
-	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	}, 3010)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:   "TestS3APIBackendconfigBadMethod",
-		path:   "/api/v1beta1/backendconfig",
-		method: "GET",
-		body: []byte(`# comment
-backend=127.0.0.1,3011
-
-`),
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 405; got != want {
-		t.Errorf("res.status: %v; want %v", got, want)
-	}
-
-	var apiResp APIResponse
-	err = json.Unmarshal(res.body, &apiResp)
-	if err != nil {
-		t.Fatalf("Error unmarshaling API response: %v", err)
-	}
-	if got, want := apiResp.Status, "Failure"; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-	if got, want := apiResp.Code, 405; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-}
-
-// TestS3APINotFound exercise backendconfig API endpoint routine when
-// API endpoint is not found.
-func TestS3APINotFound(t *testing.T) {
-	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3010;api"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	}, 3010)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:   "TestS3APINotFound",
-		path:   "/api/notfound",
-		method: "GET",
-		body: []byte(`# comment
-backend=127.0.0.1,3011
-
-`),
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 404; got != want {
-		t.Errorf("res.status: %v; want %v", got, want)
-	}
-
-	var apiResp APIResponse
-	err = json.Unmarshal(res.body, &apiResp)
-	if err != nil {
-		t.Fatalf("Error unmarshaling API response: %v", err)
-	}
-	if got, want := apiResp.Status, "Failure"; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-	if got, want := apiResp.Code, 404; got != want {
-		t.Errorf("apiResp.Status: %v; want %v", got, want)
-	}
-}
-
-// TestS3Healthmon tests health monitor endpoint.
-func TestS3Healthmon(t *testing.T) {
-	st := newServerTesterTLSConnectPort([]string{"--npn-list=spdy/3.1", "-f127.0.0.1,3011;healthmon"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatalf("request should not be forwarded")
-	}, 3011)
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name: "TestS3Healthmon",
-		path: "/alpha/bravo",
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 200; got != want {
-		t.Errorf("res.status: %v; want %v", got, want)
-	}
-}
-
-// TestS3ResponseBeforeRequestEnd tests the situation where response
-// ends before request body finishes.
-func TestS3ResponseBeforeRequestEnd(t *testing.T) {
-	st := newServerTesterTLS([]string{"--npn-list=spdy/3.1", "--mruby-file=" + testDir + "/req-return.rb"}, t, func(w http.ResponseWriter, r *http.Request) {
-		t.Fatal("request should not be forwarded")
-	})
-	defer st.Close()
-
-	res, err := st.spdy(requestParam{
-		name:        "TestS3ResponseBeforeRequestEnd",
-		noEndStream: true,
-	})
-	if err != nil {
-		t.Fatalf("Error st.spdy() = %v", err)
-	}
-	if got, want := res.status, 404; got != want {
-		t.Errorf("res.status: %v; want %v", got, want)
-	}
-}

integration-tests/server_tester.go

@@ -101,7 +101,7 @@ func newServerTesterInternal(src_args []string, t *testing.T, handler http.Handl
 
 	args := []string{}
 
-	var backendTLS, dns, externalDNS, acceptProxyProtocol, redirectIfNotTLS bool
+	var backendTLS, dns, externalDNS, acceptProxyProtocol, redirectIfNotTLS, affinityCookie, alpnH1 bool
 
 	for _, k := range src_args {
 		switch k {
@@ -116,6 +116,10 @@ func newServerTesterInternal(src_args []string, t *testing.T, handler http.Handl
 			acceptProxyProtocol = true
 		case "--redirect-if-not-tls":
 			redirectIfNotTLS = true
+		case "--affinity-cookie":
+			affinityCookie = true
+		case "--alpn-h1":
+			alpnH1 = true
 		default:
 			args = append(args, k)
 		}
@@ -153,8 +157,8 @@ func newServerTesterInternal(src_args []string, t *testing.T, handler http.Handl
 		if sep == -1 {
 			t.Fatalf("backendURL.Host %v does not contain separator ':'", backendURL.Host)
 		}
-		// We use awesome service xip.io.
-		b += fmt.Sprintf("%v.xip.io,%v;", backendURL.Host[:sep], backendURL.Host[sep+1:])
+		// We use awesome service nip.io.
+		b += fmt.Sprintf("%v.nip.io,%v;", backendURL.Host[:sep], backendURL.Host[sep+1:])
 	}
 
 	if backendTLS {
@@ -168,6 +172,10 @@ func newServerTesterInternal(src_args []string, t *testing.T, handler http.Handl
 		b += ";redirect-if-not-tls"
 	}
 
+	if affinityCookie {
+		b += ";affinity=cookie;affinity-cookie-name=affinity;affinity-cookie-path=/foo/bar"
+	}
+
 	noTLS := ";no-tls"
 	if frontendTLS {
 		noTLS = ""
@@ -218,7 +226,11 @@ func newServerTesterInternal(src_args []string, t *testing.T, handler http.Handl
 				tlsConfig = clientConfig
 			}
 			tlsConfig.InsecureSkipVerify = true
-			tlsConfig.NextProtos = []string{"h2", "spdy/3.1"}
+			if alpnH1 {
+				tlsConfig.NextProtos = []string{"http/1.1"}
+			} else {
+				tlsConfig.NextProtos = []string{"h2", "spdy/3.1"}
+			}
 			conn, err = tls.Dial("tcp", authority, tlsConfig)
 		} else {
 			conn, err = net.Dial("tcp", authority)
@@ -266,7 +278,7 @@ func (st *serverTester) Close() {
 		done := make(chan struct{})
 		go func() {
 			st.cmd.Wait()
-			done <- struct{}{}
+			close(done)
 		}()
 
 		st.cmd.Process.Signal(syscall.SIGQUIT)
@@ -769,7 +781,7 @@ type serverResponse struct {
 	connErr           bool                 // true if HTTP/2 connection error
 	spdyGoAwayErrCode spdy.GoAwayStatus    // status code received in SPDY RST_STREAM
 	spdyRstErrCode    spdy.RstStreamStatus // status code received in SPDY GOAWAY
-	connClose         bool                 // Conection: close is included in response header in HTTP/1 test
+	connClose         bool                 // Connection: close is included in response header in HTTP/1 test
 	reqHeader         http.Header          // http request header, currently only sotres pushed request header
 	pushResponse      []*serverResponse    // pushed response
 }

lib/CMakeLists.txt

@@ -44,6 +44,10 @@ set_target_properties(nghttp2 PROPERTIES
   VERSION ${LT_VERSION} SOVERSION ${LT_SOVERSION}
   C_VISIBILITY_PRESET hidden
 )
+target_include_directories(nghttp2 INTERFACE
+    "${CMAKE_CURRENT_BINARY_DIR}/includes"
+    "${CMAKE_CURRENT_SOURCE_DIR}/includes"
+    )
 
 if(HAVE_CUNIT)
   # Static library (for unittests because of symbol visibility)

lib/Makefile.msvc

@@ -62,7 +62,7 @@ AR		 := lib
 #LD		 := xilink
 #AR		 := xilib
 RC		 := rc
-CFLAGS   := -I./includes -Dssize_t=long -D_U_=""
+CFLAGS   := -I./includes -Dssize_t=long
 
 CFLAGS_R := -nologo -MD  -W3 -Z7 -DBUILDING_NGHTTP2
 CFLAGS_D := -nologo -MDd -W3 -Z7 -DBUILDING_NGHTTP2 \

lib/includes/nghttp2/nghttp2.h

@@ -387,6 +387,11 @@ typedef enum {
    * Indicates that a processing was canceled.
    */
   NGHTTP2_ERR_CANCEL = -535,
+  /**
+   * When a local endpoint expects to receive SETTINGS frame, it
+   * receives an other type of frame.
+   */
+  NGHTTP2_ERR_SETTINGS_EXPECTED = -536,
   /**
    * The errors < :enum:`NGHTTP2_ERR_FATAL` mean that the library is
    * under unexpected condition and processing was terminated (e.g.,
@@ -469,6 +474,15 @@ NGHTTP2_EXTERN void nghttp2_rcbuf_decref(nghttp2_rcbuf *rcbuf);
  */
 NGHTTP2_EXTERN nghttp2_vec nghttp2_rcbuf_get_buf(nghttp2_rcbuf *rcbuf);
 
+/**
+ * @function
+ *
+ * Returns nonzero if the underlying buffer is statically allocated,
+ * and 0 otherwise. This can be useful for language bindings that wish
+ * to avoid creating duplicate strings for these buffers.
+ */
+NGHTTP2_EXTERN int nghttp2_rcbuf_is_static(const nghttp2_rcbuf *rcbuf);
+
 /**
  * @enum
  *
@@ -1741,11 +1755,12 @@ typedef int (*nghttp2_on_header_callback2)(nghttp2_session *session,
  * The parameter and behaviour are similar to
  * :type:`nghttp2_on_header_callback`.  The difference is that this
  * callback is only invoked when a invalid header name/value pair is
- * received which is silently ignored if this callback is not set.
- * Only invalid regular header field are passed to this callback.  In
- * other words, invalid pseudo header field is not passed to this
- * callback.  Also header fields which includes upper cased latter are
- * also treated as error without passing them to this callback.
+ * received which is treated as stream error if this callback is not
+ * set.  Only invalid regular header field are passed to this
+ * callback.  In other words, invalid pseudo header field is not
+ * passed to this callback.  Also header fields which includes upper
+ * cased latter are also treated as error without passing them to this
+ * callback.
  *
  * This callback is only considered if HTTP messaging validation is
  * turned on (which is on by default, see
@@ -1754,10 +1769,13 @@ typedef int (*nghttp2_on_header_callback2)(nghttp2_session *session,
  * With this callback, application inspects the incoming invalid
  * field, and it also can reset stream from this callback by returning
  * :enum:`NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE`.  By default, the
- * error code is :enum:`NGHTTP2_INTERNAL_ERROR`.  To change the error
+ * error code is :enum:`NGHTTP2_PROTOCOL_ERROR`.  To change the error
  * code, call `nghttp2_submit_rst_stream()` with the error code of
  * choice in addition to returning
  * :enum:`NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE`.
+ *
+ * If 0 is returned, the header field is ignored, and the stream is
+ * not reset.
  */
 typedef int (*nghttp2_on_invalid_header_callback)(
     nghttp2_session *session, const nghttp2_frame *frame, const uint8_t *name,
@@ -1974,6 +1992,9 @@ typedef ssize_t (*nghttp2_pack_extension_callback)(nghttp2_session *session,
  * of length |len|.  |len| does not include the sentinel NULL
  * character.
  *
+ * This function is deprecated.  The new application should use
+ * :type:`nghttp2_error_callback2`.
+ *
  * The format of error message may change between nghttp2 library
  * versions.  The application should not depend on the particular
  * format.
@@ -1990,6 +2011,33 @@ typedef ssize_t (*nghttp2_pack_extension_callback)(nghttp2_session *session,
 typedef int (*nghttp2_error_callback)(nghttp2_session *session, const char *msg,
                                       size_t len, void *user_data);
 
+/**
+ * @functypedef
+ *
+ * Callback function invoked when library provides the error code, and
+ * message.  This callback is solely for debugging purpose.
+ * |lib_error_code| is one of error code defined in
+ * :enum:`nghttp2_error`.  The |msg| is typically NULL-terminated
+ * string of length |len|, and intended for human consumption.  |len|
+ * does not include the sentinel NULL character.
+ *
+ * The format of error message may change between nghttp2 library
+ * versions.  The application should not depend on the particular
+ * format.
+ *
+ * Normally, application should return 0 from this callback.  If fatal
+ * error occurred while doing something in this callback, application
+ * should return :enum:`NGHTTP2_ERR_CALLBACK_FAILURE`.  In this case,
+ * library will return immediately with return value
+ * :enum:`NGHTTP2_ERR_CALLBACK_FAILURE`.  Currently, if nonzero value
+ * is returned from this callback, they are treated as
+ * :enum:`NGHTTP2_ERR_CALLBACK_FAILURE`, but application should not
+ * rely on this details.
+ */
+typedef int (*nghttp2_error_callback2)(nghttp2_session *session,
+                                       int lib_error_code, const char *msg,
+                                       size_t len, void *user_data);
+
 struct nghttp2_session_callbacks;
 
 /**
@@ -2254,10 +2302,30 @@ nghttp2_session_callbacks_set_on_extension_chunk_recv_callback(
  *
  * Sets callback function invoked when library tells error message to
  * the application.
+ *
+ * This function is deprecated.  The new application should use
+ * `nghttp2_session_callbacks_set_error_callback2()`.
+ *
+ * If both :type:`nghttp2_error_callback` and
+ * :type:`nghttp2_error_callback2` are set, the latter takes
+ * precedence.
  */
 NGHTTP2_EXTERN void nghttp2_session_callbacks_set_error_callback(
     nghttp2_session_callbacks *cbs, nghttp2_error_callback error_callback);
 
+/**
+ * @function
+ *
+ * Sets callback function invoked when library tells error code, and
+ * message to the application.
+ *
+ * If both :type:`nghttp2_error_callback` and
+ * :type:`nghttp2_error_callback2` are set, the latter takes
+ * precedence.
+ */
+NGHTTP2_EXTERN void nghttp2_session_callbacks_set_error_callback2(
+    nghttp2_session_callbacks *cbs, nghttp2_error_callback2 error_callback2);
+
 /**
  * @functypedef
  *
@@ -2448,7 +2516,10 @@ nghttp2_option_set_no_recv_client_magic(nghttp2_option *option, int val);
  * <https://tools.ietf.org/html/rfc7540#section-8>`_.  See
  * :ref:`http-messaging` section for details.  For those applications
  * who use nghttp2 library as non-HTTP use, give nonzero to |val| to
- * disable this enforcement.
+ * disable this enforcement.  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.
  */
 NGHTTP2_EXTERN void nghttp2_option_set_no_http_messaging(nghttp2_option *option,
                                                          int val);
@@ -3010,6 +3081,16 @@ NGHTTP2_EXTERN int
 nghttp2_session_set_stream_user_data(nghttp2_session *session,
                                      int32_t stream_id, void *stream_user_data);
 
+/**
+ * @function
+ *
+ * Sets |user_data| to |session|, overwriting the existing user data
+ * specified in `nghttp2_session_client_new()`, or
+ * `nghttp2_session_server_new()`.
+ */
+NGHTTP2_EXTERN void nghttp2_session_set_user_data(nghttp2_session *session,
+                                                  void *user_data);
+
 /**
  * @function
  *
@@ -3802,9 +3883,8 @@ nghttp2_submit_response(nghttp2_session *session, int32_t stream_id,
  * Submits trailer fields HEADERS against the stream |stream_id|.
  *
  * The |nva| is an array of name/value pair :type:`nghttp2_nv` with
- * |nvlen| elements.  The application is responsible not to include
- * pseudo-header fields (header field whose name starts with ":") in
- * |nva|.
+ * |nvlen| elements.  The application must not include pseudo-header
+ * fields (headers whose names starts with ":") in |nva|.
  *
  * This function creates copies of all name/value pairs in |nva|.  It
  * also lower-cases all names in |nva|.  The order of elements in
@@ -4687,8 +4767,8 @@ nghttp2_hd_deflate_change_table_size(nghttp2_hd_deflater *deflater,
  *
  * After this function returns, it is safe to delete the |nva|.
  *
- * This function returns 0 if it succeeds, or one of the following
- * negative error codes:
+ * This function returns the number of bytes written to |buf| if it
+ * succeeds, or one of the following negative error codes:
  *
  * :enum:`NGHTTP2_ERR_NOMEM`
  *     Out of memory.
@@ -4719,8 +4799,8 @@ NGHTTP2_EXTERN ssize_t nghttp2_hd_deflate_hd(nghttp2_hd_deflater *deflater,
  *
  * After this function returns, it is safe to delete the |nva|.
  *
- * This function returns 0 if it succeeds, or one of the following
- * negative error codes:
+ * This function returns the number of bytes written to |vec| if it
+ * succeeds, or one of the following negative error codes:
  *
  * :enum:`NGHTTP2_ERR_NOMEM`
  *     Out of memory.

lib/nghttp2_buf.h

@@ -398,7 +398,7 @@ int nghttp2_bufs_advance(nghttp2_bufs *bufs);
 void nghttp2_bufs_seek_last_present(nghttp2_bufs *bufs);
 
 /*
- * Returns nonzero if bufs->cur->next is not emtpy.
+ * Returns nonzero if bufs->cur->next is not empty.
  */
 int nghttp2_bufs_next_present(nghttp2_bufs *bufs);
 

lib/nghttp2_callbacks.c

@@ -168,3 +168,8 @@ void nghttp2_session_callbacks_set_error_callback(
     nghttp2_session_callbacks *cbs, nghttp2_error_callback error_callback) {
   cbs->error_callback = error_callback;
 }
+
+void nghttp2_session_callbacks_set_error_callback2(
+    nghttp2_session_callbacks *cbs, nghttp2_error_callback2 error_callback2) {
+  cbs->error_callback2 = error_callback2;
+}

lib/nghttp2_callbacks.h

@@ -119,6 +119,7 @@ struct nghttp2_session_callbacks {
   nghttp2_unpack_extension_callback unpack_extension_callback;
   nghttp2_on_extension_chunk_recv_callback on_extension_chunk_recv_callback;
   nghttp2_error_callback error_callback;
+  nghttp2_error_callback2 error_callback2;
 };
 
 #endif /* NGHTTP2_CALLBACKS_H */

lib/nghttp2_debug.c

@@ -53,6 +53,8 @@ void nghttp2_set_debug_vprintf_callback(
 #else /* !DEBUGBUILD */
 
 void nghttp2_set_debug_vprintf_callback(
-    nghttp2_debug_vprintf_callback debug_vprintf_callback _U_) {}
+    nghttp2_debug_vprintf_callback debug_vprintf_callback) {
+  (void)debug_vprintf_callback;
+}
 
 #endif /* !DEBUGBUILD */

lib/nghttp2_frame.c

@@ -87,7 +87,7 @@ void nghttp2_frame_priority_init(nghttp2_priority *frame, int32_t stream_id,
   frame->pri_spec = *pri_spec;
 }
 
-void nghttp2_frame_priority_free(nghttp2_priority *frame _U_) {}
+void nghttp2_frame_priority_free(nghttp2_priority *frame) { (void)frame; }
 
 void nghttp2_frame_rst_stream_init(nghttp2_rst_stream *frame, int32_t stream_id,
                                    uint32_t error_code) {
@@ -96,7 +96,7 @@ void nghttp2_frame_rst_stream_init(nghttp2_rst_stream *frame, int32_t stream_id,
   frame->error_code = error_code;
 }
 
-void nghttp2_frame_rst_stream_free(nghttp2_rst_stream *frame _U_) {}
+void nghttp2_frame_rst_stream_free(nghttp2_rst_stream *frame) { (void)frame; }
 
 void nghttp2_frame_settings_init(nghttp2_settings *frame, uint8_t flags,
                                  nghttp2_settings_entry *iv, size_t niv) {
@@ -137,7 +137,7 @@ void nghttp2_frame_ping_init(nghttp2_ping *frame, uint8_t flags,
   }
 }
 
-void nghttp2_frame_ping_free(nghttp2_ping *frame _U_) {}
+void nghttp2_frame_ping_free(nghttp2_ping *frame) { (void)frame; }
 
 void nghttp2_frame_goaway_init(nghttp2_goaway *frame, int32_t last_stream_id,
                                uint32_t error_code, uint8_t *opaque_data,
@@ -163,7 +163,9 @@ void nghttp2_frame_window_update_init(nghttp2_window_update *frame,
   frame->reserved = 0;
 }
 
-void nghttp2_frame_window_update_free(nghttp2_window_update *frame _U_) {}
+void nghttp2_frame_window_update_free(nghttp2_window_update *frame) {
+  (void)frame;
+}
 
 size_t nghttp2_frame_trail_padlen(nghttp2_frame *frame, size_t padlen) {
   /* We have iframe->padlen == 0, but iframe->frame.hd.flags may have
@@ -183,7 +185,7 @@ void nghttp2_frame_data_init(nghttp2_data *frame, uint8_t flags,
   frame->padlen = 0;
 }
 
-void nghttp2_frame_data_free(nghttp2_data *frame _U_) {}
+void nghttp2_frame_data_free(nghttp2_data *frame) { (void)frame; }
 
 void nghttp2_frame_extension_init(nghttp2_extension *frame, uint8_t type,
                                   uint8_t flags, int32_t stream_id,
@@ -192,7 +194,7 @@ void nghttp2_frame_extension_init(nghttp2_extension *frame, uint8_t type,
   frame->payload = payload;
 }
 
-void nghttp2_frame_extension_free(nghttp2_extension *frame _U_) {}
+void nghttp2_frame_extension_free(nghttp2_extension *frame) { (void)frame; }
 
 void nghttp2_frame_altsvc_init(nghttp2_extension *frame, int32_t stream_id,
                                uint8_t *origin, size_t origin_len,
@@ -346,9 +348,7 @@ void nghttp2_frame_pack_priority_spec(uint8_t *buf,
 }
 
 void nghttp2_frame_unpack_priority_spec(nghttp2_priority_spec *pri_spec,
-                                        uint8_t flags _U_,
-                                        const uint8_t *payload,
-                                        size_t payloadlen _U_) {
+                                        const uint8_t *payload) {
   int32_t dep_stream_id;
   uint8_t exclusive;
   int32_t weight;
@@ -361,11 +361,9 @@ void nghttp2_frame_unpack_priority_spec(nghttp2_priority_spec *pri_spec,
 }
 
 int nghttp2_frame_unpack_headers_payload(nghttp2_headers *frame,
-                                         const uint8_t *payload,
-                                         size_t payloadlen) {
+                                         const uint8_t *payload) {
   if (frame->hd.flags & NGHTTP2_FLAG_PRIORITY) {
-    nghttp2_frame_unpack_priority_spec(&frame->pri_spec, frame->hd.flags,
-                                       payload, payloadlen);
+    nghttp2_frame_unpack_priority_spec(&frame->pri_spec, payload);
   } else {
     nghttp2_priority_spec_default_init(&frame->pri_spec);
   }
@@ -397,10 +395,8 @@ int nghttp2_frame_pack_priority(nghttp2_bufs *bufs, nghttp2_priority *frame) {
 }
 
 void nghttp2_frame_unpack_priority_payload(nghttp2_priority *frame,
-                                           const uint8_t *payload,
-                                           size_t payloadlen) {
-  nghttp2_frame_unpack_priority_spec(&frame->pri_spec, frame->hd.flags, payload,
-                                     payloadlen);
+                                           const uint8_t *payload) {
+  nghttp2_frame_unpack_priority_spec(&frame->pri_spec, payload);
 }
 
 int nghttp2_frame_pack_rst_stream(nghttp2_bufs *bufs,
@@ -424,8 +420,7 @@ int nghttp2_frame_pack_rst_stream(nghttp2_bufs *bufs,
 }
 
 void nghttp2_frame_unpack_rst_stream_payload(nghttp2_rst_stream *frame,
-                                             const uint8_t *payload,
-                                             size_t payloadlen _U_) {
+                                             const uint8_t *payload) {
   frame->error_code = nghttp2_get_uint32(payload);
 }
 
@@ -540,8 +535,7 @@ int nghttp2_frame_pack_push_promise(nghttp2_bufs *bufs,
 }
 
 int nghttp2_frame_unpack_push_promise_payload(nghttp2_push_promise *frame,
-                                              const uint8_t *payload,
-                                              size_t payloadlen _U_) {
+                                              const uint8_t *payload) {
   frame->promised_stream_id =
       nghttp2_get_uint32(payload) & NGHTTP2_STREAM_ID_MASK;
   frame->nva = NULL;
@@ -569,8 +563,7 @@ int nghttp2_frame_pack_ping(nghttp2_bufs *bufs, nghttp2_ping *frame) {
 }
 
 void nghttp2_frame_unpack_ping_payload(nghttp2_ping *frame,
-                                       const uint8_t *payload,
-                                       size_t payloadlen _U_) {
+                                       const uint8_t *payload) {
   memcpy(frame->opaque_data, payload, sizeof(frame->opaque_data));
 }
 
@@ -607,7 +600,6 @@ int nghttp2_frame_pack_goaway(nghttp2_bufs *bufs, nghttp2_goaway *frame) {
 
 void nghttp2_frame_unpack_goaway_payload(nghttp2_goaway *frame,
                                          const uint8_t *payload,
-                                         size_t payloadlen _U_,
                                          uint8_t *var_gift_payload,
                                          size_t var_gift_payloadlen) {
   frame->last_stream_id = nghttp2_get_uint32(payload) & NGHTTP2_STREAM_ID_MASK;
@@ -643,8 +635,8 @@ int nghttp2_frame_unpack_goaway_payload2(nghttp2_goaway *frame,
     memcpy(var_gift_payload, payload + 8, var_gift_payloadlen);
   }
 
-  nghttp2_frame_unpack_goaway_payload(frame, payload, payloadlen,
-                                      var_gift_payload, var_gift_payloadlen);
+  nghttp2_frame_unpack_goaway_payload(frame, payload, var_gift_payload,
+                                      var_gift_payloadlen);
 
   return 0;
 }
@@ -670,8 +662,7 @@ int nghttp2_frame_pack_window_update(nghttp2_bufs *bufs,
 }
 
 void nghttp2_frame_unpack_window_update_payload(nghttp2_window_update *frame,
-                                                const uint8_t *payload,
-                                                size_t payloadlen _U_) {
+                                                const uint8_t *payload) {
   frame->window_size_increment =
       nghttp2_get_uint32(payload) & NGHTTP2_WINDOW_SIZE_INCREMENT_MASK;
 }
@@ -681,6 +672,9 @@ int nghttp2_frame_pack_altsvc(nghttp2_bufs *bufs, nghttp2_extension *frame) {
   nghttp2_buf *buf;
   nghttp2_ext_altsvc *altsvc;
 
+  /* This is required with --disable-assert. */
+  (void)rv;
+
   altsvc = frame->payload;
 
   buf = &bufs->head->buf;

lib/nghttp2_frame.h

@@ -70,7 +70,9 @@
 #define NGHTTP2_MAX_PADLEN 256
 
 /* Union of extension frame payload */
-typedef union { nghttp2_ext_altsvc altsvc; } nghttp2_ext_frame_payload;
+typedef union {
+  nghttp2_ext_altsvc altsvc;
+} nghttp2_ext_frame_payload;
 
 void nghttp2_frame_pack_frame_hd(uint8_t *buf, const nghttp2_frame_hd *hd);
 
@@ -104,8 +106,7 @@ void nghttp2_frame_pack_priority_spec(uint8_t *buf,
  * assumes the |payload| contains whole priority specification.
  */
 void nghttp2_frame_unpack_priority_spec(nghttp2_priority_spec *pri_spec,
-                                        uint8_t flags, const uint8_t *payload,
-                                        size_t payloadlen);
+                                        const uint8_t *payload);
 
 /*
  * Returns the offset from the HEADERS frame payload where the
@@ -144,8 +145,7 @@ int nghttp2_frame_pack_headers(nghttp2_bufs *bufs, nghttp2_headers *frame,
  * This function always succeeds and returns 0.
  */
 int nghttp2_frame_unpack_headers_payload(nghttp2_headers *frame,
-                                         const uint8_t *payload,
-                                         size_t payloadlen);
+                                         const uint8_t *payload);
 
 /*
  * Packs PRIORITY frame |frame| in wire format and store it in
@@ -162,8 +162,7 @@ int nghttp2_frame_pack_priority(nghttp2_bufs *bufs, nghttp2_priority *frame);
  * Unpacks PRIORITY wire format into |frame|.
  */
 void nghttp2_frame_unpack_priority_payload(nghttp2_priority *frame,
-                                           const uint8_t *payload,
-                                           size_t payloadlen);
+                                           const uint8_t *payload);
 
 /*
  * Packs RST_STREAM frame |frame| in wire frame format and store it in
@@ -181,8 +180,7 @@ int nghttp2_frame_pack_rst_stream(nghttp2_bufs *bufs,
  * Unpacks RST_STREAM frame byte sequence into |frame|.
  */
 void nghttp2_frame_unpack_rst_stream_payload(nghttp2_rst_stream *frame,
-                                             const uint8_t *payload,
-                                             size_t payloadlen);
+                                             const uint8_t *payload);
 
 /*
  * Packs SETTINGS frame |frame| in wire format and store it in
@@ -273,8 +271,7 @@ int nghttp2_frame_pack_push_promise(nghttp2_bufs *bufs,
  *     TODO END_HEADERS flag is not set
  */
 int nghttp2_frame_unpack_push_promise_payload(nghttp2_push_promise *frame,
-                                              const uint8_t *payload,
-                                              size_t payloadlen);
+                                              const uint8_t *payload);
 
 /*
  * Packs PING frame |frame| in wire format and store it in
@@ -291,8 +288,7 @@ int nghttp2_frame_pack_ping(nghttp2_bufs *bufs, nghttp2_ping *frame);
  * Unpacks PING wire format into |frame|.
  */
 void nghttp2_frame_unpack_ping_payload(nghttp2_ping *frame,
-                                       const uint8_t *payload,
-                                       size_t payloadlen);
+                                       const uint8_t *payload);
 
 /*
  * Packs GOAWAY frame |frame| in wire format and store it in |bufs|.
@@ -321,7 +317,6 @@ int nghttp2_frame_pack_goaway(nghttp2_bufs *bufs, nghttp2_goaway *frame);
  */
 void nghttp2_frame_unpack_goaway_payload(nghttp2_goaway *frame,
                                          const uint8_t *payload,
-                                         size_t payloadlen,
                                          uint8_t *var_gift_payload,
                                          size_t var_gift_payloadlen);
 
@@ -356,8 +351,7 @@ int nghttp2_frame_pack_window_update(nghttp2_bufs *bufs,
  * Unpacks WINDOW_UPDATE frame byte sequence into |frame|.
  */
 void nghttp2_frame_unpack_window_update_payload(nghttp2_window_update *frame,
-                                                const uint8_t *payload,
-                                                size_t payloadlen);
+                                                const uint8_t *payload);
 
 /*
  * Packs ALTSVC frame |frame| in wire frame format and store it in

lib/nghttp2_hd.c

@@ -662,9 +662,9 @@ static int hd_context_init(nghttp2_hd_context *context, nghttp2_mem *mem) {
   context->mem = mem;
   context->bad = 0;
   context->hd_table_bufsize_max = NGHTTP2_HD_DEFAULT_MAX_BUFFER_SIZE;
-  rv = hd_ringbuf_init(&context->hd_table, context->hd_table_bufsize_max /
-                                               NGHTTP2_HD_ENTRY_OVERHEAD,
-                       mem);
+  rv = hd_ringbuf_init(
+      &context->hd_table,
+      context->hd_table_bufsize_max / NGHTTP2_HD_ENTRY_OVERHEAD, mem);
   if (rv != 0) {
     return rv;
   }
@@ -1537,10 +1537,11 @@ ssize_t nghttp2_hd_deflate_hd_vec(nghttp2_hd_deflater *deflater,
   return (ssize_t)buflen;
 }
 
-size_t nghttp2_hd_deflate_bound(nghttp2_hd_deflater *deflater _U_,
+size_t nghttp2_hd_deflate_bound(nghttp2_hd_deflater *deflater,
                                 const nghttp2_nv *nva, size_t nvlen) {
   size_t n = 0;
   size_t i;
+  (void)deflater;
 
   /* Possible Maximum Header Table Size Change.  Encoding (1u << 31) -
      1 using 4 bit prefix requires 6 bytes.  We may emit this at most

lib/nghttp2_hd.h

@@ -211,7 +211,9 @@ typedef struct {
 
 #define HD_MAP_SIZE 128
 
-typedef struct { nghttp2_hd_entry *table[HD_MAP_SIZE]; } nghttp2_hd_map;
+typedef struct {
+  nghttp2_hd_entry *table[HD_MAP_SIZE];
+} nghttp2_hd_map;
 
 struct nghttp2_hd_deflater {
   nghttp2_hd_context ctx;
@@ -313,7 +315,7 @@ void nghttp2_hd_deflate_free(nghttp2_hd_deflater *deflater);
  *
  * This function expands |bufs| as necessary to store the result. If
  * buffers is full and the process still requires more space, this
- * funtion fails and returns NGHTTP2_ERR_HEADER_COMP.
+ * function fails and returns NGHTTP2_ERR_HEADER_COMP.
  *
  * After this function returns, it is safe to delete the |nva|.
  *

lib/nghttp2_helper.c

@@ -322,6 +322,9 @@ const char *nghttp2_strerror(int error_code) {
     return "Internal error";
   case NGHTTP2_ERR_CANCEL:
     return "Cancel";
+  case NGHTTP2_ERR_SETTINGS_EXPECTED:
+    return "When a local endpoint expects to receive SETTINGS frame, it "
+           "receives an other type of frame";
   case NGHTTP2_ERR_NOMEM:
     return "Out of memory";
   case NGHTTP2_ERR_CALLBACK_FAILURE:

lib/nghttp2_http.c

@@ -521,8 +521,10 @@ int nghttp2_http_on_response_headers(nghttp2_stream *stream) {
   return 0;
 }
 
-int nghttp2_http_on_trailer_headers(nghttp2_stream *stream _U_,
+int nghttp2_http_on_trailer_headers(nghttp2_stream *stream,
                                     nghttp2_frame *frame) {
+  (void)stream;
+
   if ((frame->hd.flags & NGHTTP2_FLAG_END_STREAM) == 0) {
     return -1;
   }

lib/nghttp2_mem.c

@@ -24,18 +24,27 @@
  */
 #include "nghttp2_mem.h"
 
-static void *default_malloc(size_t size, void *mem_user_data _U_) {
+static void *default_malloc(size_t size, void *mem_user_data) {
+  (void)mem_user_data;
+
   return malloc(size);
 }
 
-static void default_free(void *ptr, void *mem_user_data _U_) { free(ptr); }
+static void default_free(void *ptr, void *mem_user_data) {
+  (void)mem_user_data;
+
+  free(ptr);
+}
+
+static void *default_calloc(size_t nmemb, size_t size, void *mem_user_data) {
+  (void)mem_user_data;
 
-static void *default_calloc(size_t nmemb, size_t size,
-                            void *mem_user_data _U_) {
   return calloc(nmemb, size);
 }
 
-static void *default_realloc(void *ptr, size_t size, void *mem_user_data _U_) {
+static void *default_realloc(void *ptr, size_t size, void *mem_user_data) {
+  (void)mem_user_data;
+
   return realloc(ptr, size);
 }
 

lib/nghttp2_outbound_item.h

@@ -112,7 +112,7 @@ struct nghttp2_outbound_item {
   nghttp2_ext_frame_payload ext_frame_payload;
   nghttp2_aux_data aux_data;
   /* The priority used in priority comparion.  Smaller is served
-     ealier.  For PING, SETTINGS and non-DATA frames (excluding
+     earlier.  For PING, SETTINGS and non-DATA frames (excluding
      response HEADERS frame) have dedicated cycle value defined above.
      For DATA frame, cycle is computed by taking into account of
      effective weight and frame payload length previously sent, so

lib/nghttp2_pq.h

@@ -35,14 +35,16 @@
 
 /* Implementation of priority queue */
 
-typedef struct { size_t index; } nghttp2_pq_entry;
+typedef struct {
+  size_t index;
+} nghttp2_pq_entry;
 
 typedef struct {
   /* The pointer to the pointer to the item stored */
   nghttp2_pq_entry **q;
   /* Memory allocator */
   nghttp2_mem *mem;
-  /* The number of items sotred */
+  /* The number of items stored */
   size_t length;
   /* The maximum number of items this pq can store. This is
      automatically extended when length is reached to this value. */
@@ -71,7 +73,7 @@ void nghttp2_pq_free(nghttp2_pq *pq);
 /*
  * Adds |item| to the priority queue |pq|.
  *
- * This function returns 0 if it succeds, or one of the following
+ * This function returns 0 if it succeeds, or one of the following
  * negative error codes:
  *
  * NGHTTP2_ERR_NOMEM

lib/nghttp2_queue.h

@@ -36,7 +36,9 @@ typedef struct nghttp2_queue_cell {
   struct nghttp2_queue_cell *next;
 } nghttp2_queue_cell;
 
-typedef struct { nghttp2_queue_cell *front, *back; } nghttp2_queue;
+typedef struct {
+  nghttp2_queue_cell *front, *back;
+} nghttp2_queue;
 
 void nghttp2_queue_init(nghttp2_queue *queue);
 void nghttp2_queue_free(nghttp2_queue *queue);

lib/nghttp2_rcbuf.c

@@ -96,3 +96,7 @@ nghttp2_vec nghttp2_rcbuf_get_buf(nghttp2_rcbuf *rcbuf) {
   nghttp2_vec res = {rcbuf->base, rcbuf->len};
   return res;
 }
+
+int nghttp2_rcbuf_is_static(const nghttp2_rcbuf *rcbuf) {
+  return rcbuf->ref == -1;
+}

lib/nghttp2_session.c

@@ -148,14 +148,16 @@ static int check_ext_type_set(const uint8_t *ext_types, uint8_t type) {
 }
 
 static int session_call_error_callback(nghttp2_session *session,
-                                       const char *fmt, ...) {
+                                       int lib_error_code, const char *fmt,
+                                       ...) {
   size_t bufsize;
   va_list ap;
   char *buf;
   int rv;
   nghttp2_mem *mem;
 
-  if (!session->callbacks.error_callback) {
+  if (!session->callbacks.error_callback &&
+      !session->callbacks.error_callback2) {
     return 0;
   }
 
@@ -189,8 +191,13 @@ static int session_call_error_callback(nghttp2_session *session,
     return 0;
   }
 
-  rv = session->callbacks.error_callback(session, buf, (size_t)rv,
-                                         session->user_data);
+  if (session->callbacks.error_callback2) {
+    rv = session->callbacks.error_callback2(session, lib_error_code, buf,
+                                            (size_t)rv, session->user_data);
+  } else {
+    rv = session->callbacks.error_callback(session, buf, (size_t)rv,
+                                           session->user_data);
+  }
 
   nghttp2_mem_free(mem, buf);
 
@@ -541,9 +548,8 @@ static int session_new(nghttp2_session **session_ptr,
   if (nghttp2_enable_strict_preface) {
     nghttp2_inbound_frame *iframe = &(*session_ptr)->iframe;
 
-    if (server &&
-        ((*session_ptr)->opt_flags & NGHTTP2_OPTMASK_NO_RECV_CLIENT_MAGIC) ==
-            0) {
+    if (server && ((*session_ptr)->opt_flags &
+                   NGHTTP2_OPTMASK_NO_RECV_CLIENT_MAGIC) == 0) {
       iframe->state = NGHTTP2_IB_READ_CLIENT_MAGIC;
       iframe->payloadleft = NGHTTP2_CLIENT_MAGIC_LEN;
     } else {
@@ -682,6 +688,7 @@ static int inflight_settings_new(nghttp2_inflight_settings **settings_ptr,
   if (niv > 0) {
     (*settings_ptr)->iv = nghttp2_frame_iv_copy(iv, niv, mem);
     if (!(*settings_ptr)->iv) {
+      nghttp2_mem_free(mem, *settings_ptr);
       return NGHTTP2_ERR_NOMEM;
     }
   } else {
@@ -1523,13 +1530,14 @@ static int session_predicate_response_headers_send(nghttp2_session *session,
   if (nghttp2_session_is_my_stream_id(session, stream->stream_id)) {
     return NGHTTP2_ERR_INVALID_STREAM_ID;
   }
-  if (stream->state == NGHTTP2_STREAM_OPENING) {
+  switch (stream->state) {
+  case NGHTTP2_STREAM_OPENING:
     return 0;
-  }
-  if (stream->state == NGHTTP2_STREAM_CLOSING) {
+  case NGHTTP2_STREAM_CLOSING:
     return NGHTTP2_ERR_STREAM_CLOSING;
+  default:
+    return NGHTTP2_ERR_INVALID_STREAM_STATE;
   }
-  return NGHTTP2_ERR_INVALID_STREAM_STATE;
 }
 
 /*
@@ -1572,9 +1580,6 @@ session_predicate_push_response_headers_send(nghttp2_session *session,
   if (stream->state != NGHTTP2_STREAM_RESERVED) {
     return NGHTTP2_ERR_PROTO;
   }
-  if (stream->state == NGHTTP2_STREAM_CLOSING) {
-    return NGHTTP2_ERR_STREAM_CLOSING;
-  }
   if (session->goaway_flags & NGHTTP2_GOAWAY_RECV) {
     return NGHTTP2_ERR_START_STREAM_NOT_ALLOWED;
   }
@@ -1609,19 +1614,18 @@ static int session_predicate_headers_send(nghttp2_session *session,
     return rv;
   }
   assert(stream);
-  if (nghttp2_session_is_my_stream_id(session, stream->stream_id)) {
-    if (stream->state == NGHTTP2_STREAM_CLOSING) {
-      return NGHTTP2_ERR_STREAM_CLOSING;
-    }
+
+  switch (stream->state) {
+  case NGHTTP2_STREAM_OPENED:
     return 0;
-  }
-  if (stream->state == NGHTTP2_STREAM_OPENED) {
-    return 0;
-  }
-  if (stream->state == NGHTTP2_STREAM_CLOSING) {
+  case NGHTTP2_STREAM_CLOSING:
     return NGHTTP2_ERR_STREAM_CLOSING;
+  default:
+    if (nghttp2_session_is_my_stream_id(session, stream->stream_id)) {
+      return 0;
+    }
+    return NGHTTP2_ERR_INVALID_STREAM_STATE;
   }
-  return NGHTTP2_ERR_INVALID_STREAM_STATE;
 }
 
 /*
@@ -2067,14 +2071,6 @@ static int session_prep_frame(nghttp2_session *session,
       /* We don't call nghttp2_session_adjust_closed_stream() here,
          since we don't keep closed stream in client side */
 
-      estimated_payloadlen = session_estimate_headers_payload(
-          session, frame->headers.nva, frame->headers.nvlen,
-          NGHTTP2_PRIORITY_SPECLEN);
-
-      if (estimated_payloadlen > session->max_send_header_block_length) {
-        return NGHTTP2_ERR_FRAME_SIZE_ERROR;
-      }
-
       rv = session_predicate_request_headers_send(session, item);
       if (rv != 0) {
         return rv;
@@ -2086,14 +2082,6 @@ static int session_prep_frame(nghttp2_session *session,
     } else {
       nghttp2_stream *stream;
 
-      estimated_payloadlen = session_estimate_headers_payload(
-          session, frame->headers.nva, frame->headers.nvlen,
-          NGHTTP2_PRIORITY_SPECLEN);
-
-      if (estimated_payloadlen > session->max_send_header_block_length) {
-        return NGHTTP2_ERR_FRAME_SIZE_ERROR;
-      }
-
       stream = nghttp2_session_get_stream(session, frame->hd.stream_id);
 
       if (stream && stream->state == NGHTTP2_STREAM_RESERVED) {
@@ -2120,6 +2108,14 @@ static int session_prep_frame(nghttp2_session *session,
       }
     }
 
+    estimated_payloadlen = session_estimate_headers_payload(
+        session, frame->headers.nva, frame->headers.nvlen,
+        NGHTTP2_PRIORITY_SPECLEN);
+
+    if (estimated_payloadlen > session->max_send_header_block_length) {
+      return NGHTTP2_ERR_FRAME_SIZE_ERROR;
+    }
+
     rv = nghttp2_frame_pack_headers(&session->aob.framebufs, &frame->headers,
                                     &session->hd_deflater);
 
@@ -2189,18 +2185,11 @@ static int session_prep_frame(nghttp2_session *session,
     nghttp2_stream *stream;
     size_t estimated_payloadlen;
 
-    estimated_payloadlen = session_estimate_headers_payload(
-        session, frame->push_promise.nva, frame->push_promise.nvlen, 0);
-
-    if (estimated_payloadlen > session->max_send_header_block_length) {
-      return NGHTTP2_ERR_FRAME_SIZE_ERROR;
-    }
-
     /* stream could be NULL if associated stream was already
        closed. */
     stream = nghttp2_session_get_stream(session, frame->hd.stream_id);
 
-    /* predicte should fail if stream is NULL. */
+    /* predicate should fail if stream is NULL. */
     rv = session_predicate_push_promise_send(session, stream);
     if (rv != 0) {
       return rv;
@@ -2208,6 +2197,13 @@ static int session_prep_frame(nghttp2_session *session,
 
     assert(stream);
 
+    estimated_payloadlen = session_estimate_headers_payload(
+        session, frame->push_promise.nva, frame->push_promise.nvlen, 0);
+
+    if (estimated_payloadlen > session->max_send_header_block_length) {
+      return NGHTTP2_ERR_FRAME_SIZE_ERROR;
+    }
+
     rv = nghttp2_frame_pack_push_promise(
         &session->aob.framebufs, &frame->push_promise, &session->hd_deflater);
     if (rv != 0) {
@@ -2229,8 +2225,9 @@ static int session_prep_frame(nghttp2_session *session,
       assert(session->obq_flood_counter_ > 0);
       --session->obq_flood_counter_;
     }
-
-    if (session_is_closing(session)) {
+    /* PING frame is allowed to be sent unless termination GOAWAY is
+       sent */
+    if (session->goaway_flags & NGHTTP2_GOAWAY_TERM_ON_SEND) {
       return NGHTTP2_ERR_SESSION_CLOSING;
     }
     nghttp2_frame_pack_ping(&session->aob.framebufs, &frame->ping);
@@ -2421,19 +2418,16 @@ static int session_close_stream_on_goaway(nghttp2_session *session,
   nghttp2_stream *stream, *next_stream;
   nghttp2_close_stream_on_goaway_arg arg = {session, NULL, last_stream_id,
                                             incoming};
-  uint32_t error_code;
 
   rv = nghttp2_map_each(&session->streams, find_stream_on_goaway_func, &arg);
   assert(rv == 0);
 
-  error_code =
-      session->server && incoming ? NGHTTP2_REFUSED_STREAM : NGHTTP2_CANCEL;
-
   stream = arg.head;
   while (stream) {
     next_stream = stream->closed_next;
     stream->closed_next = NULL;
-    rv = nghttp2_session_close_stream(session, stream->stream_id, error_code);
+    rv = nghttp2_session_close_stream(session, stream->stream_id,
+                                      NGHTTP2_REFUSED_STREAM);
 
     /* stream may be deleted here */
 
@@ -3331,7 +3325,7 @@ static int session_call_on_invalid_header(nghttp2_session *session,
         session, frame, nv->name->base, nv->name->len, nv->value->base,
         nv->value->len, nv->flags, session->user_data);
   } else {
-    return 0;
+    return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
   }
 
   if (rv == NGHTTP2_ERR_PAUSE || rv == NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE) {
@@ -3394,8 +3388,7 @@ static int session_call_unpack_extension_callback(nghttp2_session *session) {
  * NGHTTP2_ERR_NOMEM
  *   Out of memory.
  */
-static int session_handle_frame_size_error(nghttp2_session *session,
-                                           nghttp2_frame *frame _U_) {
+static int session_handle_frame_size_error(nghttp2_session *session) {
   /* TODO Currently no callback is called for this error, because we
      call this callback before reading any payload */
   return nghttp2_session_terminate_session(session, NGHTTP2_FRAME_SIZE_ERROR);
@@ -3422,6 +3415,27 @@ static uint32_t get_error_code_from_lib_error_code(int lib_error_code) {
   }
 }
 
+/*
+ * Calls on_invalid_frame_recv_callback if it is set to |session|.
+ *
+ * This function returns 0 if it succeeds, or one of the following
+ * negative error codes:
+ *
+ * NGHTTP2_ERR_CALLBACK_FAILURE
+ *   User defined callback function fails.
+ */
+static int session_call_on_invalid_frame_recv_callback(nghttp2_session *session,
+                                                       nghttp2_frame *frame,
+                                                       int lib_error_code) {
+  if (session->callbacks.on_invalid_frame_recv_callback) {
+    if (session->callbacks.on_invalid_frame_recv_callback(
+            session, frame, lib_error_code, session->user_data) != 0) {
+      return NGHTTP2_ERR_CALLBACK_FAILURE;
+    }
+  }
+  return 0;
+}
+
 static int session_handle_invalid_stream2(nghttp2_session *session,
                                           int32_t stream_id,
                                           nghttp2_frame *frame,
@@ -3579,14 +3593,46 @@ static int inflate_header_block(nghttp2_session *session, nghttp2_frame *frame,
       if (subject_stream && session_enforce_http_messaging(session)) {
         rv = nghttp2_http_on_header(session, subject_stream, frame, &nv,
                                     trailer);
+
+        if (rv == NGHTTP2_ERR_IGN_HTTP_HEADER) {
+          /* Don't overwrite rv here */
+          int rv2;
+
+          rv2 = session_call_on_invalid_header(session, frame, &nv);
+          if (rv2 == NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE) {
+            rv = NGHTTP2_ERR_HTTP_HEADER;
+          } else {
+            if (rv2 != 0) {
+              return rv2;
+            }
+
+            /* header is ignored */
+            DEBUGF("recv: HTTP ignored: type=%u, id=%d, header %.*s: %.*s\n",
+                   frame->hd.type, frame->hd.stream_id, (int)nv.name->len,
+                   nv.name->base, (int)nv.value->len, nv.value->base);
+
+            rv2 = session_call_error_callback(
+                session, NGHTTP2_ERR_HTTP_HEADER,
+                "Ignoring received invalid HTTP header field: frame type: "
+                "%u, stream: %d, name: [%.*s], value: [%.*s]",
+                frame->hd.type, frame->hd.stream_id, (int)nv.name->len,
+                nv.name->base, (int)nv.value->len, nv.value->base);
+
+            if (nghttp2_is_fatal(rv2)) {
+              return rv2;
+            }
+          }
+        }
+
         if (rv == NGHTTP2_ERR_HTTP_HEADER) {
           DEBUGF("recv: HTTP error: type=%u, id=%d, header %.*s: %.*s\n",
                  frame->hd.type, frame->hd.stream_id, (int)nv.name->len,
                  nv.name->base, (int)nv.value->len, nv.value->base);
 
           rv = session_call_error_callback(
-              session, "Invalid HTTP header field was received: frame type: "
-                       "%u, stream: %d, name: [%.*s], value: [%.*s]",
+              session, NGHTTP2_ERR_HTTP_HEADER,
+              "Invalid HTTP header field was received: frame type: "
+              "%u, stream: %d, name: [%.*s], value: [%.*s]",
               frame->hd.type, frame->hd.stream_id, (int)nv.name->len,
               nv.name->base, (int)nv.value->len, nv.value->base);
 
@@ -3602,34 +3648,6 @@ static int inflate_header_block(nghttp2_session *session, nghttp2_frame *frame,
           }
           return NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE;
         }
-
-        if (rv == NGHTTP2_ERR_IGN_HTTP_HEADER) {
-          /* Don't overwrite rv here */
-          int rv2;
-
-          rv2 = session_call_on_invalid_header(session, frame, &nv);
-          /* This handles NGHTTP2_ERR_PAUSE and
-             NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE as well */
-          if (rv2 != 0) {
-            return rv2;
-          }
-
-          /* header is ignored */
-          DEBUGF("recv: HTTP ignored: type=%u, id=%d, header %.*s: %.*s\n",
-                 frame->hd.type, frame->hd.stream_id, (int)nv.name->len,
-                 nv.name->base, (int)nv.value->len, nv.value->base);
-
-          rv2 = session_call_error_callback(
-              session,
-              "Ignoring received invalid HTTP header field: frame type: "
-              "%u, stream: %d, name: [%.*s], value: [%.*s]",
-              frame->hd.type, frame->hd.stream_id, (int)nv.name->len,
-              nv.name->base, (int)nv.value->len, nv.value->base);
-
-          if (nghttp2_is_fatal(rv2)) {
-            return rv2;
-          }
-        }
       }
       if (rv == 0) {
         rv = session_call_on_header(session, frame, &nv);
@@ -3768,7 +3786,7 @@ int nghttp2_session_on_request_headers_received(nghttp2_session *session,
         session, frame, NGHTTP2_ERR_PROTO, "request HEADERS: stream_id == 0");
   }
 
-  /* If client recieves idle stream from server, it is invalid
+  /* If client receives idle stream from server, it is invalid
      regardless stream ID is even or odd.  This is because client is
      not expected to receive request from server. */
   if (!session->server) {
@@ -3991,8 +4009,7 @@ static int session_process_headers_frame(nghttp2_session *session) {
   nghttp2_frame *frame = &iframe->frame;
   nghttp2_stream *stream;
 
-  rv = nghttp2_frame_unpack_headers_payload(&frame->headers, iframe->sbuf.pos,
-                                            nghttp2_buf_len(&iframe->sbuf));
+  rv = nghttp2_frame_unpack_headers_payload(&frame->headers, iframe->sbuf.pos);
 
   if (rv != 0) {
     return nghttp2_session_terminate_session_with_reason(
@@ -4082,8 +4099,7 @@ static int session_process_priority_frame(nghttp2_session *session) {
   nghttp2_inbound_frame *iframe = &session->iframe;
   nghttp2_frame *frame = &iframe->frame;
 
-  nghttp2_frame_unpack_priority_payload(&frame->priority, iframe->sbuf.pos,
-                                        nghttp2_buf_len(&iframe->sbuf));
+  nghttp2_frame_unpack_priority_payload(&frame->priority, iframe->sbuf.pos);
 
   return nghttp2_session_on_priority_received(session, frame);
 }
@@ -4124,8 +4140,7 @@ static int session_process_rst_stream_frame(nghttp2_session *session) {
   nghttp2_inbound_frame *iframe = &session->iframe;
   nghttp2_frame *frame = &iframe->frame;
 
-  nghttp2_frame_unpack_rst_stream_payload(&frame->rst_stream, iframe->sbuf.pos,
-                                          nghttp2_buf_len(&iframe->sbuf));
+  nghttp2_frame_unpack_rst_stream_payload(&frame->rst_stream, iframe->sbuf.pos);
 
   return nghttp2_session_on_rst_stream_received(session, frame);
 }
@@ -4597,8 +4612,8 @@ static int session_process_push_promise_frame(nghttp2_session *session) {
   nghttp2_inbound_frame *iframe = &session->iframe;
   nghttp2_frame *frame = &iframe->frame;
 
-  rv = nghttp2_frame_unpack_push_promise_payload(
-      &frame->push_promise, iframe->sbuf.pos, nghttp2_buf_len(&iframe->sbuf));
+  rv = nghttp2_frame_unpack_push_promise_payload(&frame->push_promise,
+                                                 iframe->sbuf.pos);
 
   if (rv != 0) {
     return nghttp2_session_terminate_session_with_reason(
@@ -4632,8 +4647,7 @@ static int session_process_ping_frame(nghttp2_session *session) {
   nghttp2_inbound_frame *iframe = &session->iframe;
   nghttp2_frame *frame = &iframe->frame;
 
-  nghttp2_frame_unpack_ping_payload(&frame->ping, iframe->sbuf.pos,
-                                    nghttp2_buf_len(&iframe->sbuf));
+  nghttp2_frame_unpack_ping_payload(&frame->ping, iframe->sbuf.pos);
 
   return nghttp2_session_on_ping_received(session, frame);
 }
@@ -4674,9 +4688,9 @@ static int session_process_goaway_frame(nghttp2_session *session) {
   nghttp2_inbound_frame *iframe = &session->iframe;
   nghttp2_frame *frame = &iframe->frame;
 
-  nghttp2_frame_unpack_goaway_payload(
-      &frame->goaway, iframe->sbuf.pos, nghttp2_buf_len(&iframe->sbuf),
-      iframe->lbuf.pos, nghttp2_buf_len(&iframe->lbuf));
+  nghttp2_frame_unpack_goaway_payload(&frame->goaway, iframe->sbuf.pos,
+                                      iframe->lbuf.pos,
+                                      nghttp2_buf_len(&iframe->lbuf));
 
   nghttp2_buf_wrap_init(&iframe->lbuf, NULL, 0);
 
@@ -4759,8 +4773,8 @@ static int session_process_window_update_frame(nghttp2_session *session) {
   nghttp2_inbound_frame *iframe = &session->iframe;
   nghttp2_frame *frame = &iframe->frame;
 
-  nghttp2_frame_unpack_window_update_payload(
-      &frame->window_update, iframe->sbuf.pos, nghttp2_buf_len(&iframe->sbuf));
+  nghttp2_frame_unpack_window_update_payload(&frame->window_update,
+                                             iframe->sbuf.pos);
 
   return nghttp2_session_on_window_update_received(session, frame);
 }
@@ -4776,11 +4790,13 @@ int nghttp2_session_on_altsvc_received(nghttp2_session *session,
 
   if (frame->hd.stream_id == 0) {
     if (altsvc->origin_len == 0) {
-      return 0;
+      return session_call_on_invalid_frame_recv_callback(session, frame,
+                                                         NGHTTP2_ERR_PROTO);
     }
   } else {
     if (altsvc->origin_len > 0) {
-      return 0;
+      return session_call_on_invalid_frame_recv_callback(session, frame,
+                                                         NGHTTP2_ERR_PROTO);
     }
 
     stream = nghttp2_session_get_stream(session, frame->hd.stream_id);
@@ -4793,6 +4809,11 @@ int nghttp2_session_on_altsvc_received(nghttp2_session *session,
     }
   }
 
+  if (altsvc->field_value_len == 0) {
+    return session_call_on_invalid_frame_recv_callback(session, frame,
+                                                       NGHTTP2_ERR_PROTO);
+  }
+
   return session_call_on_frame_received(session, frame);
 }
 
@@ -5289,6 +5310,10 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
     return rv;
   }
 
+  if (!nghttp2_session_want_read(session)) {
+    return (ssize_t)inlen;
+  }
+
   for (;;) {
     switch (iframe->state) {
     case NGHTTP2_IB_READ_CLIENT_MAGIC:
@@ -5325,9 +5350,10 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
         iframe->state = NGHTTP2_IB_IGN_ALL;
 
         rv = session_call_error_callback(
-            session, "Remote peer returned unexpected data while we expected "
-                     "SETTINGS frame.  Perhaps, peer does not support HTTP/2 "
-                     "properly.");
+            session, NGHTTP2_ERR_SETTINGS_EXPECTED,
+            "Remote peer returned unexpected data while we expected "
+            "SETTINGS frame.  Perhaps, peer does not support HTTP/2 "
+            "properly.");
 
         if (nghttp2_is_fatal(rv)) {
           return rv;
@@ -5568,7 +5594,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
         if (iframe->payloadleft) {
           nghttp2_settings_entry *min_header_table_size_entry;
 
-          /* We allocate iv with addtional one entry, to store the
+          /* We allocate iv with additional one entry, to store the
              minimum header table size. */
           iframe->max_niv =
               iframe->frame.hd.length / NGHTTP2_FRAME_SETTINGS_ENTRY_LENGTH + 1;
@@ -5951,7 +5977,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
 
         DEBUGF("recv: origin_len=%zu\n", origin_len);
 
-        if (2 + origin_len > iframe->payloadleft) {
+        if (origin_len > iframe->payloadleft) {
           busy = 1;
           iframe->state = NGHTTP2_IB_FRAME_SIZE_ERROR;
           break;
@@ -6037,9 +6063,10 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
 
           /* Use promised stream ID for PUSH_PROMISE */
           rv = nghttp2_session_add_rst_stream(
-              session, iframe->frame.hd.type == NGHTTP2_PUSH_PROMISE
-                           ? iframe->frame.push_promise.promised_stream_id
-                           : iframe->frame.hd.stream_id,
+              session,
+              iframe->frame.hd.type == NGHTTP2_PUSH_PROMISE
+                  ? iframe->frame.push_promise.promised_stream_id
+                  : iframe->frame.hd.stream_id,
               NGHTTP2_INTERNAL_ERROR);
           if (nghttp2_is_fatal(rv)) {
             return rv;
@@ -6124,7 +6151,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session, const uint8_t *in,
     case NGHTTP2_IB_FRAME_SIZE_ERROR:
       DEBUGF("recv: [IB_FRAME_SIZE_ERROR]\n");
 
-      rv = session_handle_frame_size_error(session, &iframe->frame);
+      rv = session_handle_frame_size_error(session);
       if (nghttp2_is_fatal(rv)) {
         return rv;
       }
@@ -6609,21 +6636,12 @@ int nghttp2_session_want_write(nghttp2_session *session) {
    * response HEADERS and concurrent stream limit is reached, we don't
    * want to write them.
    */
-
-  if (session->aob.item == NULL &&
-      nghttp2_outbound_queue_top(&session->ob_urgent) == NULL &&
-      nghttp2_outbound_queue_top(&session->ob_reg) == NULL &&
-      (nghttp2_pq_empty(&session->root.obq) ||
-       session->remote_window_size == 0) &&
-      (nghttp2_outbound_queue_top(&session->ob_syn) == NULL ||
-       session_is_outgoing_concurrent_streams_max(session))) {
-    return 0;
-  }
-
-  /* If there is no active streams and GOAWAY has been sent or
-     received, we are done with this session. */
-  return (session->goaway_flags &
-          (NGHTTP2_GOAWAY_SENT | NGHTTP2_GOAWAY_RECV)) == 0;
+  return session->aob.item || nghttp2_outbound_queue_top(&session->ob_urgent) ||
+         nghttp2_outbound_queue_top(&session->ob_reg) ||
+         (!nghttp2_pq_empty(&session->root.obq) &&
+          session->remote_window_size > 0) ||
+         (nghttp2_outbound_queue_top(&session->ob_syn) &&
+          !session_is_outgoing_concurrent_streams_max(session));
 }
 
 int nghttp2_session_add_ping(nghttp2_session *session, uint8_t flags,
@@ -7138,6 +7156,7 @@ uint32_t nghttp2_session_get_remote_settings(nghttp2_session *session,
   }
 
   assert(0);
+  abort(); /* if NDEBUG is set */
 }
 
 uint32_t nghttp2_session_get_local_settings(nghttp2_session *session,
@@ -7158,6 +7177,7 @@ uint32_t nghttp2_session_get_local_settings(nghttp2_session *session,
   }
 
   assert(0);
+  abort(); /* if NDEBUG is set */
 }
 
 static int nghttp2_session_upgrade_internal(nghttp2_session *session,
@@ -7501,3 +7521,7 @@ size_t
 nghttp2_session_get_hd_deflate_dynamic_table_size(nghttp2_session *session) {
   return nghttp2_hd_deflate_get_dynamic_table_size(&session->hd_deflater);
 }
+
+void nghttp2_session_set_user_data(nghttp2_session *session, void *user_data) {
+  session->user_data = user_data;
+}

lib/nghttp2_session.h

@@ -311,7 +311,7 @@ struct nghttp2_session {
   /* Unacked local SETTINGS_MAX_CONCURRENT_STREAMS value. We use this
      to refuse the incoming stream if it exceeds this value. */
   uint32_t pending_local_max_concurrent_stream;
-  /* The bitwose OR of zero or more of nghttp2_typemask to indicate
+  /* The bitwise OR of zero or more of nghttp2_typemask to indicate
      that the default handling of extension frame is enabled. */
   uint32_t builtin_recv_ext_types;
   /* Unacked local ENABLE_PUSH value.  We use this to refuse
@@ -319,7 +319,7 @@ struct nghttp2_session {
   uint8_t pending_enable_push;
   /* Nonzero if the session is server side. */
   uint8_t server;
-  /* Flags indicating GOAWAY is sent and/or recieved. The flags are
+  /* Flags indicating GOAWAY is sent and/or received. The flags are
      composed by bitwise OR-ing nghttp2_goaway_flag. */
   uint8_t goaway_flags;
   /* This flag is used to reduce excessive queuing of WINDOW_UPDATE to
@@ -722,7 +722,7 @@ int nghttp2_session_on_goaway_received(nghttp2_session *session,
                                        nghttp2_frame *frame);
 
 /*
- * Called when WINDOW_UPDATE is recieved, assuming |frame| is properly
+ * Called when WINDOW_UPDATE is received, assuming |frame| is properly
  * initialized.
  *
  * This function returns 0 if it succeeds, or one of the following
@@ -737,7 +737,7 @@ int nghttp2_session_on_window_update_received(nghttp2_session *session,
                                               nghttp2_frame *frame);
 
 /*
- * Called when ALTSVC is recieved, assuming |frame| is properly
+ * Called when ALTSVC is received, assuming |frame| is properly
  * initialized.
  *
  * This function returns 0 if it succeeds, or one of the following

lib/nghttp2_stream.c

@@ -366,8 +366,9 @@ static void check_queued(nghttp2_stream *stream) {
         }
       }
       if (queued == 0) {
-        fprintf(stderr, "stream(%p)=%d, stream->queued == 1, and "
-                        "!stream_active(), but no descendants is queued\n",
+        fprintf(stderr,
+                "stream(%p)=%d, stream->queued == 1, and "
+                "!stream_active(), but no descendants is queued\n",
                 stream, stream->stream_id);
         assert(0);
       }
@@ -378,9 +379,10 @@ static void check_queued(nghttp2_stream *stream) {
     }
   } else {
     if (stream_active(stream) || !nghttp2_pq_empty(&stream->obq)) {
-      fprintf(stderr, "stream(%p) = %d, stream->queued == 0, but "
-                      "stream_active(stream) == %d and "
-                      "nghttp2_pq_size(&stream->obq) = %zu\n",
+      fprintf(stderr,
+              "stream(%p) = %d, stream->queued == 0, but "
+              "stream_active(stream) == %d and "
+              "nghttp2_pq_size(&stream->obq) = %zu\n",
               stream, stream->stream_id, stream_active(stream),
               nghttp2_pq_size(&stream->obq));
       assert(0);
@@ -449,8 +451,8 @@ static void validate_tree(nghttp2_stream *stream) {
   check_sum_dep(stream);
   check_dep_prev(stream);
 }
-#else /* !STREAM_DEP_DEBUG */
-static void validate_tree(nghttp2_stream *stream _U_) {}
+#else  /* !STREAM_DEP_DEBUG */
+static void validate_tree(nghttp2_stream *stream) { (void)stream; }
 #endif /* !STREAM_DEP_DEBUG*/
 
 static int stream_update_dep_on_attach_item(nghttp2_stream *stream) {

lib/nghttp2_submit.c

@@ -217,7 +217,7 @@ int nghttp2_submit_ping(nghttp2_session *session, uint8_t flags,
   return nghttp2_session_add_ping(session, flags, opaque_data);
 }
 
-int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags _U_,
+int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags,
                             int32_t stream_id,
                             const nghttp2_priority_spec *pri_spec) {
   int rv;
@@ -225,6 +225,7 @@ int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags _U_,
   nghttp2_frame *frame;
   nghttp2_priority_spec copy_pri_spec;
   nghttp2_mem *mem;
+  (void)flags;
 
   mem = &session->mem;
 
@@ -264,8 +265,10 @@ int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags _U_,
   return 0;
 }
 
-int nghttp2_submit_rst_stream(nghttp2_session *session, uint8_t flags _U_,
+int nghttp2_submit_rst_stream(nghttp2_session *session, uint8_t flags,
                               int32_t stream_id, uint32_t error_code) {
+  (void)flags;
+
   if (stream_id == 0) {
     return NGHTTP2_ERR_INVALID_ARGUMENT;
   }
@@ -273,9 +276,11 @@ int nghttp2_submit_rst_stream(nghttp2_session *session, uint8_t flags _U_,
   return nghttp2_session_add_rst_stream(session, stream_id, error_code);
 }
 
-int nghttp2_submit_goaway(nghttp2_session *session, uint8_t flags _U_,
+int nghttp2_submit_goaway(nghttp2_session *session, uint8_t flags,
                           int32_t last_stream_id, uint32_t error_code,
                           const uint8_t *opaque_data, size_t opaque_data_len) {
+  (void)flags;
+
   if (session->goaway_flags & NGHTTP2_GOAWAY_TERM_ON_SEND) {
     return 0;
   }
@@ -296,12 +301,13 @@ int nghttp2_submit_shutdown_notice(nghttp2_session *session) {
                                     NGHTTP2_GOAWAY_AUX_SHUTDOWN_NOTICE);
 }
 
-int nghttp2_submit_settings(nghttp2_session *session, uint8_t flags _U_,
+int nghttp2_submit_settings(nghttp2_session *session, uint8_t flags,
                             const nghttp2_settings_entry *iv, size_t niv) {
+  (void)flags;
   return nghttp2_session_add_settings(session, NGHTTP2_FLAG_NONE, iv, niv);
 }
 
-int32_t nghttp2_submit_push_promise(nghttp2_session *session, uint8_t flags _U_,
+int32_t nghttp2_submit_push_promise(nghttp2_session *session, uint8_t flags,
                                     int32_t stream_id, const nghttp2_nv *nva,
                                     size_t nvlen,
                                     void *promised_stream_user_data) {
@@ -312,6 +318,7 @@ int32_t nghttp2_submit_push_promise(nghttp2_session *session, uint8_t flags _U_,
   int32_t promised_stream_id;
   int rv;
   nghttp2_mem *mem;
+  (void)flags;
 
   mem = &session->mem;
 
@@ -365,11 +372,13 @@ int32_t nghttp2_submit_push_promise(nghttp2_session *session, uint8_t flags _U_,
   return promised_stream_id;
 }
 
-int nghttp2_submit_window_update(nghttp2_session *session, uint8_t flags _U_,
+int nghttp2_submit_window_update(nghttp2_session *session, uint8_t flags,
                                  int32_t stream_id,
                                  int32_t window_size_increment) {
   int rv;
   nghttp2_stream *stream = 0;
+  (void)flags;
+
   if (window_size_increment == 0) {
     return 0;
   }
@@ -410,11 +419,12 @@ int nghttp2_submit_window_update(nghttp2_session *session, uint8_t flags _U_,
 }
 
 int nghttp2_session_set_local_window_size(nghttp2_session *session,
-                                          uint8_t flags _U_, int32_t stream_id,
+                                          uint8_t flags, int32_t stream_id,
                                           int32_t window_size) {
   int32_t window_size_increment;
   nghttp2_stream *stream;
   int rv;
+  (void)flags;
 
   if (window_size < 0) {
     return NGHTTP2_ERR_INVALID_ARGUMENT;
@@ -476,7 +486,7 @@ int nghttp2_session_set_local_window_size(nghttp2_session *session,
   return 0;
 }
 
-int nghttp2_submit_altsvc(nghttp2_session *session, uint8_t flags _U_,
+int nghttp2_submit_altsvc(nghttp2_session *session, uint8_t flags,
                           int32_t stream_id, const uint8_t *origin,
                           size_t origin_len, const uint8_t *field_value,
                           size_t field_value_len) {
@@ -488,6 +498,7 @@ int nghttp2_submit_altsvc(nghttp2_session *session, uint8_t flags _U_,
   nghttp2_frame *frame;
   nghttp2_ext_altsvc *altsvc;
   int rv;
+  (void)flags;
 
   mem = &session->mem;
 

src/CMakeLists.txt

@@ -8,11 +8,8 @@ set_source_files_properties(${cxx_sources} PROPERTIES
   COMPILE_FLAGS "${WARNCXXFLAGS} ${CXX1XCXXFLAGS}")
 
 include_directories(
-  "${CMAKE_SOURCE_DIR}/lib/includes"
-  "${CMAKE_BINARY_DIR}/lib/includes"
-  "${CMAKE_SOURCE_DIR}/lib"
-  "${CMAKE_SOURCE_DIR}/src/includes"
-  "${CMAKE_SOURCE_DIR}/third-party"
+  "${CMAKE_CURRENT_SOURCE_DIR}/includes"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../third-party"
 
   ${JEMALLOC_INCLUDE_DIRS}
   ${SPDYLAY_INCLUDE_DIRS}
@@ -48,7 +45,7 @@ if(ENABLE_APP)
   set(NGHTTP_SOURCES
     ${HELPER_OBJECTS}
     nghttp.cc
-    ssl.cc
+    tls.cc
   )
   if(HAVE_LIBXML2)
     list(APPEND NGHTTP_SOURCES HtmlParser.cc)
@@ -58,7 +55,7 @@ if(ENABLE_APP)
   set(NGHTTPD_SOURCES
     ${HELPER_OBJECTS}
     nghttpd.cc
-    ssl.cc
+    tls.cc
     HttpServer.cc
   )
 
@@ -67,7 +64,7 @@ if(ENABLE_APP)
     util.cc
     http2.cc h2load.cc
     timegm.c
-    ssl.cc
+    tls.cc
     h2load_http2_session.cc
     h2load_http1_session.cc
   )
@@ -82,7 +79,7 @@ if(ENABLE_APP)
   set(NGHTTPX_SRCS
     util.cc http2.cc timegm.c
     app_helper.cc
-    ssl.cc
+    tls.cc
     shrpx_config.cc
     shrpx_accept_handler.cc
     shrpx_connection_handler.cc
@@ -98,7 +95,7 @@ if(ENABLE_APP)
     shrpx_log.cc
     shrpx_http.cc
     shrpx_io_control.cc
-    shrpx_ssl.cc
+    shrpx_tls.cc
     shrpx_worker.cc
     shrpx_log_config.cc
     shrpx_connect_blocker.cc
@@ -152,7 +149,7 @@ if(ENABLE_APP)
   if(HAVE_CUNIT)
     set(NGHTTPX_UNITTEST_SOURCES
       shrpx-unittest.cc
-      shrpx_ssl_test.cc
+      shrpx_tls_test.cc
       shrpx_downstream_test.cc
       shrpx_config_test.cc
       shrpx_worker_test.cc
@@ -216,7 +213,7 @@ endif()
 if(ENABLE_ASIO_LIB)
   set(NGHTTP2_ASIO_SOURCES
     util.cc http2.cc
-    ssl.cc
+    tls.cc
     timegm.c
     asio_common.cc
     asio_io_service_pool.cc
@@ -252,6 +249,11 @@ if(ENABLE_ASIO_LIB)
     ${OPENSSL_INCLUDE_DIRS}
     ${Boost_INCLUDE_DIRS}
   )
+  target_include_directories(nghttp2_asio INTERFACE
+    "${CMAKE_CURRENT_BINARY_DIR}/../lib/includes"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../lib/includes"
+    "${CMAKE_CURRENT_SOURCE_DIR}/includes"
+  )
   target_link_libraries(nghttp2_asio
     nghttp2
     ${OPENSSL_LIBRARIES}

src/HttpServer.cc

@@ -60,7 +60,7 @@
 #include "app_helper.h"
 #include "http2.h"
 #include "util.h"
-#include "ssl.h"
+#include "tls.h"
 #include "template.h"
 
 #ifndef O_BINARY
@@ -877,7 +877,7 @@ int Http2Handler::connection_made() {
     }
   }
 
-  if (ssl_ && !nghttp2::ssl::check_http2_requirement(ssl_)) {
+  if (ssl_ && !nghttp2::tls::check_http2_requirement(ssl_)) {
     terminate_session(NGHTTP2_INADEQUATE_SECURITY);
   }
 
@@ -1749,8 +1749,8 @@ void fill_callback(nghttp2_session_callbacks *callbacks, const Config *config) {
     nghttp2_session_callbacks_set_on_invalid_frame_recv_callback(
         callbacks, verbose_on_invalid_frame_recv_callback);
 
-    nghttp2_session_callbacks_set_error_callback(callbacks,
-                                                 verbose_error_callback);
+    nghttp2_session_callbacks_set_error_callback2(callbacks,
+                                                  verbose_error_callback);
   }
 
   nghttp2_session_callbacks_set_on_data_chunk_recv_callback(
@@ -1779,7 +1779,7 @@ struct ClientInfo {
 struct Worker {
   std::unique_ptr<Sessions> sessions;
   ev_async w;
-  // protectes q
+  // protects q
   std::mutex m;
   std::deque<ClientInfo> q;
 };
@@ -2122,14 +2122,14 @@ int HttpServer::run() {
     SSL_CTX_set_mode(ssl_ctx, SSL_MODE_AUTO_RETRY);
     SSL_CTX_set_mode(ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
 
-    if (nghttp2::ssl::ssl_ctx_set_proto_versions(
-            ssl_ctx, nghttp2::ssl::NGHTTP2_TLS_MIN_VERSION,
-            nghttp2::ssl::NGHTTP2_TLS_MAX_VERSION) != 0) {
+    if (nghttp2::tls::ssl_ctx_set_proto_versions(
+            ssl_ctx, nghttp2::tls::NGHTTP2_TLS_MIN_VERSION,
+            nghttp2::tls::NGHTTP2_TLS_MAX_VERSION) != 0) {
       std::cerr << "Could not set TLS versions" << std::endl;
       return -1;
     }
 
-    if (SSL_CTX_set_cipher_list(ssl_ctx, ssl::DEFAULT_CIPHER_LIST) == 0) {
+    if (SSL_CTX_set_cipher_list(ssl_ctx, tls::DEFAULT_CIPHER_LIST) == 0) {
       std::cerr << ERR_error_string(ERR_get_error(), nullptr) << std::endl;
       return -1;
     }
@@ -2156,7 +2156,7 @@ int HttpServer::run() {
     }
     SSL_CTX_set_tmp_ecdh(ssl_ctx, ecdh);
     EC_KEY_free(ecdh);
-// #endif // OPENSSL_VERSION_NUBMER < 0x10002000L
+    // #endif // OPENSSL_VERSION_NUBMER < 0x10002000L
 
 #endif // OPENSSL_NO_EC
 
@@ -2197,8 +2197,9 @@ int HttpServer::run() {
       return -1;
     }
     if (config_->verify_client) {
-      SSL_CTX_set_verify(ssl_ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE |
-                                      SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
+      SSL_CTX_set_verify(ssl_ctx,
+                         SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE |
+                             SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
                          verify_callback);
     }
 

src/Makefile.am

@@ -40,7 +40,6 @@ AM_CPPFLAGS = \
 	-I$(top_srcdir)/lib \
 	-I$(top_srcdir)/src/includes \
 	-I$(top_srcdir)/third-party \
-	@LIBSPDYLAY_CFLAGS@ \
 	@LIBXML2_CFLAGS@ \
 	@LIBEV_CFLAGS@ \
 	@OPENSSL_CFLAGS@ \
@@ -52,7 +51,6 @@ AM_CPPFLAGS = \
 LDADD = $(top_builddir)/lib/libnghttp2.la \
 	$(top_builddir)/third-party/libhttp-parser.la \
 	@JEMALLOC_LIBS@ \
-	@LIBSPDYLAY_LIBS@ \
 	@LIBXML2_LIBS@ \
 	@LIBEV_LIBS@ \
 	@OPENSSL_LIBS@ \
@@ -81,10 +79,10 @@ endif # HAVE_LIBXML2
 
 nghttp_SOURCES = ${HELPER_OBJECTS} ${HELPER_HFILES} nghttp.cc nghttp.h \
 	${HTML_PARSER_OBJECTS} ${HTML_PARSER_HFILES} \
-	ssl.cc ssl.h
+	tls.cc tls.h
 
 nghttpd_SOURCES = ${HELPER_OBJECTS} ${HELPER_HFILES} nghttpd.cc \
-	ssl.cc ssl.h \
+	tls.cc tls.h \
 	HttpServer.cc HttpServer.h
 
 bin_PROGRAMS += h2load
@@ -92,19 +90,15 @@ bin_PROGRAMS += h2load
 h2load_SOURCES = util.cc util.h \
 	http2.cc http2.h h2load.cc h2load.h \
 	timegm.c timegm.h \
-	ssl.cc ssl.h \
+	tls.cc tls.h \
 	h2load_session.h \
 	h2load_http2_session.cc h2load_http2_session.h \
 	h2load_http1_session.cc h2load_http1_session.h
 
-if HAVE_SPDYLAY
-h2load_SOURCES += h2load_spdy_session.cc h2load_spdy_session.h
-endif # HAVE_SPDYLAY
-
 NGHTTPX_SRCS = \
 	util.cc util.h http2.cc http2.h timegm.c timegm.h base64.h \
 	app_helper.cc app_helper.h \
-	ssl.cc ssl.h \
+	tls.cc tls.h \
 	shrpx_config.cc shrpx_config.h \
 	shrpx_error.h \
 	shrpx_accept_handler.cc shrpx_accept_handler.h \
@@ -122,7 +116,7 @@ NGHTTPX_SRCS = \
 	shrpx_log.cc shrpx_log.h \
 	shrpx_http.cc shrpx_http.h \
 	shrpx_io_control.cc shrpx_io_control.h \
-	shrpx_ssl.cc shrpx_ssl.h \
+	shrpx_tls.cc shrpx_tls.h \
 	shrpx_worker.cc shrpx_worker.h \
 	shrpx_log_config.cc shrpx_log_config.h \
 	shrpx_connect_blocker.cc shrpx_connect_blocker.h \
@@ -148,10 +142,6 @@ NGHTTPX_SRCS = \
 	buffer.h memchunk.h template.h allocator.h \
 	xsi_strerror.c xsi_strerror.h
 
-if HAVE_SPDYLAY
-NGHTTPX_SRCS += shrpx_spdy_upstream.cc shrpx_spdy_upstream.h
-endif # HAVE_SPDYLAY
-
 if HAVE_MRUBY
 NGHTTPX_SRCS += \
 	shrpx_mruby.cc shrpx_mruby.h \
@@ -183,7 +173,7 @@ endif # HAVE_NEVERBLEED
 if HAVE_CUNIT
 check_PROGRAMS += nghttpx-unittest
 nghttpx_unittest_SOURCES = shrpx-unittest.cc \
-	shrpx_ssl_test.cc shrpx_ssl_test.h \
+	shrpx_tls_test.cc shrpx_tls_test.h \
 	shrpx_downstream_test.cc shrpx_downstream_test.h \
 	shrpx_config_test.cc shrpx_config_test.h \
 	shrpx_worker_test.cc shrpx_worker_test.h \
@@ -240,7 +230,7 @@ lib_LTLIBRARIES = libnghttp2_asio.la
 
 libnghttp2_asio_la_SOURCES = \
 	util.cc util.h http2.cc http2.h \
-	ssl.cc ssl.h \
+	tls.cc tls.h \
 	ssl_compat.h \
 	timegm.c timegm.h \
 	asio_common.cc asio_common.h \

src/allocator.h

@@ -27,7 +27,9 @@
 
 #include "nghttp2_config.h"
 
+#ifndef _WIN32
 #include <sys/uio.h>
+#endif // !_WIN32
 
 #include <cassert>
 
@@ -271,6 +273,6 @@ ByteRef make_byte_ref(BlockAllocator &alloc, size_t size) {
   return {dst, size};
 }
 
-} // namespace aria2
+} // namespace nghttp2
 
 #endif // ALLOCATOR_H

src/app_helper.cc

@@ -155,7 +155,7 @@ void print_nv(nghttp2_nv *nva, size_t nvlen) {
     print_nv(nva);
   }
 }
-} // namelen
+} // namespace
 
 void print_timer() {
   auto millis = get_timer();
@@ -327,8 +327,9 @@ void print_frame(print_type ptype, const nghttp2_frame *frame) {
     break;
   case NGHTTP2_GOAWAY:
     print_frame_attr_indent();
-    fprintf(outfile, "(last_stream_id=%d, error_code=%s(0x%02x), "
-                     "opaque_data(%u)=[%s])\n",
+    fprintf(outfile,
+            "(last_stream_id=%d, error_code=%s(0x%02x), "
+            "opaque_data(%u)=[%s])\n",
             frame->goaway.last_stream_id,
             nghttp2_http2_strerror(frame->goaway.error_code),
             frame->goaway.error_code,
@@ -425,8 +426,8 @@ int verbose_on_data_chunk_recv_callback(nghttp2_session *session, uint8_t flags,
   return 0;
 }
 
-int verbose_error_callback(nghttp2_session *session, const char *msg,
-                           size_t len, void *user_data) {
+int verbose_error_callback(nghttp2_session *session, int lib_error_code,
+                           const char *msg, size_t len, void *user_data) {
   print_timer();
   fprintf(outfile, " [ERROR] %.*s\n", (int)len, msg);
   fflush(outfile);

src/app_helper.h

@@ -60,8 +60,8 @@ int verbose_on_data_chunk_recv_callback(nghttp2_session *session, uint8_t flags,
                                         int32_t stream_id, const uint8_t *data,
                                         size_t len, void *user_data);
 
-int verbose_error_callback(nghttp2_session *session, const char *msg,
-                           size_t len, void *user_data);
+int verbose_error_callback(nghttp2_session *session, int lib_error_code,
+                           const char *msg, size_t len, void *user_data);
 
 // Returns difference between |a| and |b| in milliseconds, assuming
 // |a| is more recent than |b|.

src/asio_client_session.cc

@@ -96,29 +96,48 @@ boost::asio::io_service &session::io_service() const {
 
 const request *session::submit(boost::system::error_code &ec,
                                const std::string &method,
-                               const std::string &uri, header_map h) const {
-  return impl_->submit(ec, method, uri, generator_cb(), std::move(h));
+                               const std::string &uri, header_map h,
+                               priority_spec prio) const {
+  return impl_->submit(ec, method, uri, generator_cb(), std::move(h),
+                       std::move(prio));
 }
 
 const request *session::submit(boost::system::error_code &ec,
                                const std::string &method,
                                const std::string &uri, std::string data,
-                               header_map h) const {
+                               header_map h, priority_spec prio) const {
   return impl_->submit(ec, method, uri, string_generator(std::move(data)),
-                       std::move(h));
+                       std::move(h), std::move(prio));
 }
 
 const request *session::submit(boost::system::error_code &ec,
                                const std::string &method,
                                const std::string &uri, generator_cb cb,
-                               header_map h) const {
-  return impl_->submit(ec, method, uri, std::move(cb), std::move(h));
+                               header_map h, priority_spec prio) const {
+  return impl_->submit(ec, method, uri, std::move(cb), std::move(h),
+                       std::move(prio));
 }
 
 void session::read_timeout(const boost::posix_time::time_duration &t) {
   impl_->read_timeout(t);
 }
 
+priority_spec::priority_spec(const int32_t stream_id, const int32_t weight,
+                             const bool exclusive)
+    : valid_(true) {
+  nghttp2_priority_spec_init(&spec_, stream_id, weight, exclusive);
+}
+
+const nghttp2_priority_spec *priority_spec::get() const {
+  if (!valid_) {
+    return nullptr;
+  }
+
+  return &spec_;
+}
+
+const bool priority_spec::valid() const { return valid_; }
+
 } // namespace client
 } // namespace asio_http2
-} // nghttp2
+} // namespace nghttp2

src/asio_client_session_impl.cc

@@ -47,6 +47,7 @@ session_impl::session_impl(
       deadline_(io_service),
       connect_timeout_(connect_timeout),
       read_timeout_(boost::posix_time::seconds(60)),
+      ping_(io_service),
       session_(nullptr),
       data_pending_(nullptr),
       data_pendinglen_(0),
@@ -102,6 +103,27 @@ void session_impl::handle_deadline() {
       std::bind(&session_impl::handle_deadline, this->shared_from_this()));
 }
 
+void handle_ping2(const boost::system::error_code &ec, int) {}
+
+void session_impl::start_ping() {
+  ping_.expires_from_now(boost::posix_time::seconds(30));
+  ping_.async_wait(std::bind(&session_impl::handle_ping, shared_from_this(),
+                             std::placeholders::_1));
+}
+
+void session_impl::handle_ping(const boost::system::error_code &ec) {
+  if (stopped_ || ec == boost::asio::error::operation_aborted ||
+      !streams_.empty()) {
+    return;
+  }
+
+  nghttp2_submit_ping(session_, NGHTTP2_FLAG_NONE, nullptr);
+
+  signal_write();
+
+  start_ping();
+}
+
 void session_impl::connected(tcp::resolver::iterator endpoint_it) {
   if (!setup_session()) {
     return;
@@ -112,6 +134,8 @@ void session_impl::connected(tcp::resolver::iterator endpoint_it) {
   do_write();
   do_read();
 
+  start_ping();
+
   auto &connect_cb = on_connect();
   if (connect_cb) {
     connect_cb(endpoint_it);
@@ -433,6 +457,9 @@ std::unique_ptr<stream> session_impl::pop_stream(int32_t stream_id) {
   }
   auto strm = std::move((*it).second);
   streams_.erase(it);
+  if (streams_.empty()) {
+    start_ping();
+  }
   return strm;
 }
 
@@ -441,6 +468,7 @@ stream *session_impl::create_push_stream(int32_t stream_id) {
   strm->stream_id(stream_id);
   auto p = streams_.emplace(stream_id, std::move(strm));
   assert(p.second);
+  ping_.cancel();
   return (*p.first).second.get();
 }
 
@@ -451,7 +479,7 @@ std::unique_ptr<stream> session_impl::create_stream() {
 const request *session_impl::submit(boost::system::error_code &ec,
                                     const std::string &method,
                                     const std::string &uri, generator_cb cb,
-                                    header_map h) {
+                                    header_map h, priority_spec prio) {
   ec.clear();
 
   if (stopped_) {
@@ -531,7 +559,7 @@ const request *session_impl::submit(boost::system::error_code &ec,
     prdptr = &prd;
   }
 
-  auto stream_id = nghttp2_submit_request(session_, nullptr, nva.data(),
+  auto stream_id = nghttp2_submit_request(session_, prio.get(), nva.data(),
                                           nva.size(), prdptr, strm.get());
   if (stream_id < 0) {
     ec = make_error_code(static_cast<nghttp2_error>(stream_id));
@@ -544,6 +572,7 @@ const request *session_impl::submit(boost::system::error_code &ec,
 
   auto p = streams_.emplace(stream_id, std::move(strm));
   assert(p.second);
+  ping_.cancel();
   return &(*p.first).second->request();
 }
 
@@ -715,6 +744,7 @@ void session_impl::stop() {
 
   shutdown_socket();
   deadline_.cancel();
+  ping_.cancel();
   stopped_ = true;
 }
 
@@ -726,4 +756,4 @@ void session_impl::read_timeout(const boost::posix_time::time_duration &t) {
 
 } // namespace client
 } // namespace asio_http2
-} // nghttp2
+} // namespace nghttp2

src/asio_client_session_impl.h

@@ -70,7 +70,7 @@ public:
 
   const request *submit(boost::system::error_code &ec,
                         const std::string &method, const std::string &uri,
-                        generator_cb cb, header_map h);
+                        generator_cb cb, header_map h, priority_spec spec);
 
   virtual void start_connect(tcp::resolver::iterator endpoint_it) = 0;
   virtual tcp::socket &socket() = 0;
@@ -109,6 +109,8 @@ private:
   bool setup_session();
   void call_error_cb(const boost::system::error_code &ec);
   void handle_deadline();
+  void start_ping();
+  void handle_ping(const boost::system::error_code &ec);
 
   boost::asio::io_service &io_service_;
   tcp::resolver resolver_;
@@ -122,6 +124,8 @@ private:
   boost::posix_time::time_duration connect_timeout_;
   boost::posix_time::time_duration read_timeout_;
 
+  boost::asio::deadline_timer ping_;
+
   nghttp2_session *session_;
 
   const uint8_t *data_pending_;

src/asio_client_session_tls_impl.cc

@@ -45,8 +45,9 @@ session_tls_impl::~session_tls_impl() {}
 void session_tls_impl::start_connect(tcp::resolver::iterator endpoint_it) {
   auto self = std::static_pointer_cast<session_tls_impl>(shared_from_this());
   boost::asio::async_connect(
-      socket(), endpoint_it, [self](const boost::system::error_code &ec,
-                                    tcp::resolver::iterator endpoint_it) {
+      socket(), endpoint_it,
+      [self](const boost::system::error_code &ec,
+             tcp::resolver::iterator endpoint_it) {
         if (self->stopped()) {
           return;
         }

src/asio_client_tls_context.cc

@@ -28,7 +28,7 @@
 
 #include <boost/asio/ssl.hpp>
 
-#include "ssl.h"
+#include "tls.h"
 #include "util.h"
 
 namespace nghttp2 {

src/asio_common.cc

@@ -24,6 +24,7 @@
  */
 #include "asio_common.h"
 
+#include <fcntl.h>
 #include <memory>
 
 #include "util.h"

src/asio_server_http2_handler.h

@@ -169,6 +169,6 @@ private:
 
 } // namespace server
 } // namespace asio_http2
-} // namespace nghttp
+} // namespace nghttp2
 
 #endif // ASIO_SERVER_HTTP2_HANDLER_H

src/asio_server_http2_impl.cc

@@ -28,7 +28,7 @@
 
 #include "asio_server.h"
 #include "util.h"
-#include "ssl.h"
+#include "tls.h"
 #include "template.h"
 
 namespace nghttp2 {

src/asio_server_tls_context.cc

@@ -28,7 +28,7 @@
 
 #include <boost/asio/ssl.hpp>
 
-#include "ssl.h"
+#include "tls.h"
 #include "util.h"
 
 namespace nghttp2 {
@@ -72,7 +72,7 @@ configure_tls_context_easy(boost::system::error_code &ec,
   SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);
   SSL_CTX_set_mode(ctx, SSL_MODE_RELEASE_BUFFERS);
 
-  SSL_CTX_set_cipher_list(ctx, ssl::DEFAULT_CIPHER_LIST);
+  SSL_CTX_set_cipher_list(ctx, tls::DEFAULT_CIPHER_LIST);
 
 #ifndef OPENSSL_NO_EC
   auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);

src/h2load.h

@@ -64,7 +64,6 @@ struct Worker;
 
 struct Config {
   std::vector<std::vector<nghttp2_nv>> nva;
-  std::vector<std::vector<const char *>> nv;
   std::vector<std::string> h1reqs;
   std::vector<ev_tstamp> timings;
   nghttp2::Headers custom_headers;
@@ -85,17 +84,15 @@ struct Config {
   // rate at which connections should be made
   size_t rate;
   ev_tstamp rate_period;
+  // amount of time for main measurements in timing-based test
+  ev_tstamp duration;
+  // amount of time to wait before starting measurements in timing-based test
+  ev_tstamp warm_up_time;
   // amount of time to wait for activity on a given connection
   ev_tstamp conn_active_timeout;
   // amount of time to wait after the last request is made on a connection
   ev_tstamp conn_inactivity_timeout;
-  enum {
-    PROTO_HTTP2,
-    PROTO_SPDY2,
-    PROTO_SPDY3,
-    PROTO_SPDY3_1,
-    PROTO_HTTP1_1
-  } no_tls_proto;
+  enum { PROTO_HTTP2, PROTO_HTTP1_1 } no_tls_proto;
   uint32_t header_table_size;
   uint32_t encoder_header_table_size;
   // file descriptor for upload data
@@ -118,6 +115,7 @@ struct Config {
   ~Config();
 
   bool is_rate_mode() const;
+  bool is_timing_based_mode() const;
   bool has_base_uri() const;
 };
 
@@ -139,7 +137,7 @@ struct ClientStat {
   // time client end (i.e., client somehow processed all requests it
   // is responsible for, and disconnected)
   std::chrono::steady_clock::time_point client_end_time;
-  // The number of requests completed successfull, but not necessarily
+  // The number of requests completed successful, but not necessarily
   // means successful HTTP status code.
   size_t req_success;
 
@@ -180,7 +178,7 @@ struct Stats {
   size_t req_started;
   // The number of requests finished
   size_t req_done;
-  // The number of requests completed successfull, but not necessarily
+  // The number of requests completed successful, but not necessarily
   // means successful HTTP status code.
   size_t req_success;
   // The number of requests marked as success.  HTTP status code is
@@ -215,15 +213,21 @@ struct Stats {
 
 enum ClientState { CLIENT_IDLE, CLIENT_CONNECTED };
 
+// This type tells whether the client is in warmup phase or not or is over
+enum class Phase {
+  INITIAL_IDLE,  // Initial idle state before warm-up phase
+  WARM_UP,       // Warm up phase when no measurements are done
+  MAIN_DURATION, // Main measurement phase; if timing-based
+                 // test is not run, this is the default phase
+  DURATION_OVER  // This phase occurs after the measurements are over
+};
+
 struct Client;
 
-// We use systematic sampling method
+// We use reservoir sampling method
 struct Sampling {
-  // sampling interval
-  double interval;
-  // cumulative value of interval, and the next point is the integer
-  // rounded up from this value.
-  double point;
+  // maximum number of samples
+  size_t max_samples;
   // number of samples seen, including discarded samples.
   size_t n;
 };
@@ -253,6 +257,15 @@ struct Worker {
   ev_timer timeout_watcher;
   // The next client ID this worker assigns
   uint32_t next_client_id;
+  // Keeps track of the current phase (for timing-based experiment) for the
+  // worker
+  Phase current_phase;
+  // We need to keep track of the clients in order to stop them when needed
+  std::vector<Client *> clients;
+  // This is only active when there is not a bounded number of requests
+  // specified
+  ev_timer duration_watcher;
+  ev_timer warmup_watcher;
 
   Worker(uint32_t id, SSL_CTX *ssl_ctx, size_t nreq_todo, size_t nclients,
          size_t rate, size_t max_samples, Config *config);
@@ -263,6 +276,10 @@ struct Worker {
   void sample_client_stat(ClientStat *cstat);
   void report_progress();
   void report_rate_progress();
+  // This function calls the destructors of all the clients.
+  void stop_all_clients();
+  // This function frees a client from the list of clients for this Worker.
+  void free_client(Client *);
 };
 
 struct Stream {

src/h2load_http2_session.cc

@@ -26,6 +26,7 @@
 
 #include <cassert>
 #include <cerrno>
+#include <iostream>
 
 #include "h2load.h"
 #include "util.h"
@@ -52,6 +53,15 @@ int on_header_callback(nghttp2_session *session, const nghttp2_frame *frame,
   }
   client->on_header(frame->hd.stream_id, name, namelen, value, valuelen);
   client->worker->stats.bytes_head_decomp += namelen + valuelen;
+
+  if (client->worker->config->verbose) {
+    std::cout << "[stream_id=" << frame->hd.stream_id << "] ";
+    std::cout.write(reinterpret_cast<const char *>(name), namelen);
+    std::cout << ": ";
+    std::cout.write(reinterpret_cast<const char *>(value), valuelen);
+    std::cout << "\n";
+  }
+
   return 0;
 }
 } // namespace
@@ -180,6 +190,9 @@ ssize_t send_callback(nghttp2_session *session, const uint8_t *data,
 void Http2Session::on_connect() {
   int rv;
 
+  // This is required with --disable-assert.
+  (void)rv;
+
   nghttp2_session_callbacks *callbacks;
 
   nghttp2_session_callbacks_new(&callbacks);

src/h2load_spdy_session.cc

@@ -1,289 +0,0 @@
-/*
- * nghttp2 - HTTP/2 C Library
- *
- * Copyright (c) 2014 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 "h2load_spdy_session.h"
-
-#include <cassert>
-#include <cerrno>
-
-#include "h2load.h"
-#include "util.h"
-
-using namespace nghttp2;
-
-namespace h2load {
-
-SpdySession::SpdySession(Client *client, uint16_t spdy_version)
-    : client_(client), session_(nullptr), spdy_version_(spdy_version) {}
-
-SpdySession::~SpdySession() { spdylay_session_del(session_); }
-
-namespace {
-void before_ctrl_send_callback(spdylay_session *session,
-                               spdylay_frame_type type, spdylay_frame *frame,
-                               void *user_data) {
-  auto client = static_cast<Client *>(user_data);
-  if (type != SPDYLAY_SYN_STREAM) {
-    return;
-  }
-  client->on_request(frame->syn_stream.stream_id);
-  auto req_stat = client->get_req_stat(frame->syn_stream.stream_id);
-  client->record_request_time(req_stat);
-}
-} // namespace
-
-namespace {
-void on_ctrl_recv_callback(spdylay_session *session, spdylay_frame_type type,
-                           spdylay_frame *frame, void *user_data) {
-  auto client = static_cast<Client *>(user_data);
-  if (type != SPDYLAY_SYN_REPLY) {
-    return;
-  }
-  for (auto p = frame->syn_reply.nv; *p; p += 2) {
-    auto name = *p;
-    auto value = *(p + 1);
-    auto namelen = strlen(name);
-    auto valuelen = strlen(value);
-    client->on_header(frame->syn_reply.stream_id,
-                      reinterpret_cast<const uint8_t *>(name), namelen,
-                      reinterpret_cast<const uint8_t *>(value), valuelen);
-    client->worker->stats.bytes_head_decomp += namelen + valuelen;
-  }
-
-  // Strictly speaking, we have to subtract 2 (unused field) if SPDY
-  // version is 2.  But it is already deprecated, and we don't do
-  // extra work for it.
-  client->worker->stats.bytes_head += frame->syn_reply.hd.length - 4;
-
-  if (frame->syn_stream.hd.flags & SPDYLAY_CTRL_FLAG_FIN) {
-    client->record_ttfb();
-  }
-}
-} // namespace
-
-namespace {
-void on_data_chunk_recv_callback(spdylay_session *session, uint8_t flags,
-                                 int32_t stream_id, const uint8_t *data,
-                                 size_t len, void *user_data) {
-  auto client = static_cast<Client *>(user_data);
-
-  client->record_ttfb();
-  client->worker->stats.bytes_body += len;
-
-  auto spdy_session = static_cast<SpdySession *>(client->session.get());
-
-  spdy_session->handle_window_update(stream_id, len);
-}
-} // namespace
-
-namespace {
-void on_stream_close_callback(spdylay_session *session, int32_t stream_id,
-                              spdylay_status_code status_code,
-                              void *user_data) {
-  auto client = static_cast<Client *>(user_data);
-  client->on_stream_close(stream_id, status_code == SPDYLAY_OK);
-}
-} // namespace
-
-namespace {
-ssize_t send_callback(spdylay_session *session, const uint8_t *data,
-                      size_t length, int flags, void *user_data) {
-  auto client = static_cast<Client *>(user_data);
-  auto &wb = client->wb;
-
-  if (wb.rleft() >= BACKOFF_WRITE_BUFFER_THRES) {
-    return SPDYLAY_ERR_WOULDBLOCK;
-  }
-
-  return wb.append(data, length);
-}
-} // namespace
-
-namespace {
-ssize_t file_read_callback(spdylay_session *session, int32_t stream_id,
-                           uint8_t *buf, size_t length, int *eof,
-                           spdylay_data_source *source, void *user_data) {
-  auto client = static_cast<Client *>(user_data);
-  auto config = client->worker->config;
-  auto req_stat = client->get_req_stat(stream_id);
-
-  ssize_t nread;
-  while ((nread = pread(config->data_fd, buf, length, req_stat->data_offset)) ==
-             -1 &&
-         errno == EINTR)
-    ;
-
-  if (nread == -1) {
-    return SPDYLAY_ERR_TEMPORAL_CALLBACK_FAILURE;
-  }
-
-  req_stat->data_offset += nread;
-
-  if (nread == 0 || req_stat->data_offset == config->data_length) {
-    *eof = 1;
-  }
-
-  return nread;
-}
-} // namespace
-
-void SpdySession::on_connect() {
-  spdylay_session_callbacks callbacks = {0};
-  callbacks.send_callback = send_callback;
-  callbacks.before_ctrl_send_callback = before_ctrl_send_callback;
-  callbacks.on_data_chunk_recv_callback = on_data_chunk_recv_callback;
-  callbacks.on_stream_close_callback = on_stream_close_callback;
-  callbacks.on_ctrl_recv_callback = on_ctrl_recv_callback;
-
-  spdylay_session_client_new(&session_, spdy_version_, &callbacks, client_);
-
-  int val = 1;
-  spdylay_session_set_option(session_, SPDYLAY_OPT_NO_AUTO_WINDOW_UPDATE, &val,
-                             sizeof(val));
-
-  spdylay_settings_entry iv;
-  iv.settings_id = SPDYLAY_SETTINGS_INITIAL_WINDOW_SIZE;
-  iv.flags = SPDYLAY_ID_FLAG_SETTINGS_NONE;
-  iv.value = (1 << client_->worker->config->window_bits);
-  spdylay_submit_settings(session_, SPDYLAY_FLAG_SETTINGS_NONE, &iv, 1);
-
-  auto config = client_->worker->config;
-
-  if (spdy_version_ >= SPDYLAY_PROTO_SPDY3_1 &&
-      config->connection_window_bits > 16) {
-    auto delta =
-        (1 << config->connection_window_bits) - SPDYLAY_INITIAL_WINDOW_SIZE;
-    spdylay_submit_window_update(session_, 0, delta);
-  }
-
-  client_->signal_write();
-}
-
-int SpdySession::submit_request() {
-  int rv;
-  auto config = client_->worker->config;
-  auto &nv = config->nv[client_->reqidx++];
-
-  if (client_->reqidx == config->nv.size()) {
-    client_->reqidx = 0;
-  }
-
-  spdylay_data_provider prd{{0}, file_read_callback};
-
-  rv = spdylay_submit_request(session_, 0, nv.data(),
-                              config->data_fd == -1 ? nullptr : &prd, nullptr);
-
-  if (rv != 0) {
-    return -1;
-  }
-
-  return 0;
-}
-
-int SpdySession::on_read(const uint8_t *data, size_t len) {
-  auto rv = spdylay_session_mem_recv(session_, data, len);
-  if (rv < 0) {
-    return -1;
-  }
-
-  assert(static_cast<size_t>(rv) == len);
-
-  if (spdylay_session_want_read(session_) == 0 &&
-      spdylay_session_want_write(session_) == 0 && client_->wb.rleft() == 0) {
-    return -1;
-  }
-
-  client_->signal_write();
-
-  return 0;
-}
-
-int SpdySession::on_write() {
-  auto rv = spdylay_session_send(session_);
-  if (rv != 0) {
-    return -1;
-  }
-
-  if (spdylay_session_want_read(session_) == 0 &&
-      spdylay_session_want_write(session_) == 0 && client_->wb.rleft() == 0) {
-    return -1;
-  }
-  return 0;
-}
-
-void SpdySession::terminate() {
-  spdylay_session_fail_session(session_, SPDYLAY_OK);
-}
-
-namespace {
-int32_t determine_window_update_transmission(spdylay_session *session,
-                                             int32_t stream_id,
-                                             size_t window_bits) {
-  int32_t recv_length;
-
-  if (stream_id == 0) {
-    recv_length = spdylay_session_get_recv_data_length(session);
-  } else {
-    recv_length =
-        spdylay_session_get_stream_recv_data_length(session, stream_id);
-  }
-
-  auto window_size = 1 << window_bits;
-
-  if (recv_length != -1 && recv_length >= window_size / 2) {
-    return recv_length;
-  }
-
-  return -1;
-}
-} // namespace
-
-void SpdySession::handle_window_update(int32_t stream_id, size_t recvlen) {
-  auto config = client_->worker->config;
-  size_t connection_window_bits;
-
-  if (config->connection_window_bits > 16) {
-    connection_window_bits = config->connection_window_bits;
-  } else {
-    connection_window_bits = 16;
-  }
-
-  auto delta =
-      determine_window_update_transmission(session_, 0, connection_window_bits);
-  if (delta > 0) {
-    spdylay_submit_window_update(session_, 0, delta);
-  }
-
-  delta = determine_window_update_transmission(session_, stream_id,
-                                               config->window_bits);
-  if (delta > 0) {
-    spdylay_submit_window_update(session_, stream_id, delta);
-  }
-}
-
-size_t SpdySession::max_concurrent_streams() {
-  return (size_t)client_->worker->config->max_concurrent_streams;
-}
-
-} // namespace h2load

src/h2load_spdy_session.h

@@ -1,58 +0,0 @@
-/*
- * nghttp2 - HTTP/2 C Library
- *
- * Copyright (c) 2014 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.
- */
-#ifndef H2LOAD_SPDY_SESSION_H
-#define H2LOAD_SPDY_SESSION_H
-
-#include "h2load_session.h"
-
-#include <spdylay/spdylay.h>
-
-#include "util.h"
-
-namespace h2load {
-
-struct Client;
-
-class SpdySession : public Session {
-public:
-  SpdySession(Client *client, uint16_t spdy_version);
-  virtual ~SpdySession();
-  virtual void on_connect();
-  virtual int submit_request();
-  virtual int on_read(const uint8_t *data, size_t len);
-  virtual int on_write();
-  virtual void terminate();
-  virtual size_t max_concurrent_streams();
-  void handle_window_update(int32_t stream_id, size_t recvlen);
-
-private:
-  Client *client_;
-  spdylay_session *session_;
-  uint16_t spdy_version_;
-};
-
-} // namespace h2load
-
-#endif // H2LOAD_SPDY_SESSION_H

src/http2.cc

@@ -36,6 +36,8 @@ StringRef get_reason_phrase(unsigned int status_code) {
     return StringRef::from_lit("Continue");
   case 101:
     return StringRef::from_lit("Switching Protocols");
+  case 103:
+    return StringRef::from_lit("Early Hints");
   case 200:
     return StringRef::from_lit("OK");
   case 201:
@@ -140,6 +142,8 @@ StringRef stringify_status(BlockAllocator &balloc, unsigned int status_code) {
     return StringRef::from_lit("100");
   case 101:
     return StringRef::from_lit("101");
+  case 103:
+    return StringRef::from_lit("103");
   case 200:
     return StringRef::from_lit("200");
   case 201:
@@ -358,15 +362,21 @@ nghttp2_nv make_nv_nocopy(const StringRef &name, const StringRef &value,
 
 namespace {
 void copy_headers_to_nva_internal(std::vector<nghttp2_nv> &nva,
-                                  const HeaderRefs &headers, uint8_t nv_flags) {
-  for (auto &kv : headers) {
-    if (kv.name.empty() || kv.name[0] == ':') {
+                                  const HeaderRefs &headers, uint8_t nv_flags,
+                                  uint32_t flags) {
+  auto it_forwarded = std::end(headers);
+  auto it_xff = std::end(headers);
+  auto it_xfp = std::end(headers);
+  auto it_via = std::end(headers);
+
+  for (auto it = std::begin(headers); it != std::end(headers); ++it) {
+    auto kv = &(*it);
+    if (kv->name.empty() || kv->name[0] == ':') {
       continue;
     }
-    switch (kv.token) {
+    switch (kv->token) {
     case HD_COOKIE:
     case HD_CONNECTION:
-    case HD_FORWARDED:
     case HD_HOST:
     case HD_HTTP2_SETTINGS:
     case HD_KEEP_ALIVE:
@@ -375,51 +385,157 @@ void copy_headers_to_nva_internal(std::vector<nghttp2_nv> &nva,
     case HD_TE:
     case HD_TRANSFER_ENCODING:
     case HD_UPGRADE:
-    case HD_VIA:
-    case HD_X_FORWARDED_FOR:
-    case HD_X_FORWARDED_PROTO:
       continue;
+    case HD_FORWARDED:
+      if (flags & HDOP_STRIP_FORWARDED) {
+        continue;
+      }
+
+      if (it_forwarded == std::end(headers)) {
+        it_forwarded = it;
+        continue;
+      }
+
+      kv = &(*it_forwarded);
+      it_forwarded = it;
+      break;
+    case HD_X_FORWARDED_FOR:
+      if (flags & HDOP_STRIP_X_FORWARDED_FOR) {
+        continue;
+      }
+
+      if (it_xff == std::end(headers)) {
+        it_xff = it;
+        continue;
+      }
+
+      kv = &(*it_xff);
+      it_xff = it;
+      break;
+    case HD_X_FORWARDED_PROTO:
+      if (flags & HDOP_STRIP_X_FORWARDED_PROTO) {
+        continue;
+      }
+
+      if (it_xfp == std::end(headers)) {
+        it_xfp = it;
+        continue;
+      }
+
+      kv = &(*it_xfp);
+      it_xfp = it;
+      break;
+    case HD_VIA:
+      if (flags & HDOP_STRIP_VIA) {
+        continue;
+      }
+
+      if (it_via == std::end(headers)) {
+        it_via = it;
+        continue;
+      }
+
+      kv = &(*it_via);
+      it_via = it;
+      break;
     }
-    nva.push_back(make_nv_internal(kv.name, kv.value, kv.no_index, nv_flags));
+    nva.push_back(
+        make_nv_internal(kv->name, kv->value, kv->no_index, nv_flags));
   }
 }
 } // namespace
 
 void copy_headers_to_nva(std::vector<nghttp2_nv> &nva,
-                         const HeaderRefs &headers) {
-  copy_headers_to_nva_internal(nva, headers, NGHTTP2_NV_FLAG_NONE);
+                         const HeaderRefs &headers, uint32_t flags) {
+  copy_headers_to_nva_internal(nva, headers, NGHTTP2_NV_FLAG_NONE, flags);
 }
 
 void copy_headers_to_nva_nocopy(std::vector<nghttp2_nv> &nva,
-                                const HeaderRefs &headers) {
-  copy_headers_to_nva_internal(nva, headers, NGHTTP2_NV_FLAG_NO_COPY_NAME |
-                                                 NGHTTP2_NV_FLAG_NO_COPY_VALUE);
+                                const HeaderRefs &headers, uint32_t flags) {
+  copy_headers_to_nva_internal(
+      nva, headers,
+      NGHTTP2_NV_FLAG_NO_COPY_NAME | NGHTTP2_NV_FLAG_NO_COPY_VALUE, flags);
 }
 
 void build_http1_headers_from_headers(DefaultMemchunks *buf,
-                                      const HeaderRefs &headers) {
-  for (auto &kv : headers) {
-    if (kv.name.empty() || kv.name[0] == ':') {
+                                      const HeaderRefs &headers,
+                                      uint32_t flags) {
+  auto it_forwarded = std::end(headers);
+  auto it_xff = std::end(headers);
+  auto it_xfp = std::end(headers);
+  auto it_via = std::end(headers);
+
+  for (auto it = std::begin(headers); it != std::end(headers); ++it) {
+    auto kv = &(*it);
+    if (kv->name.empty() || kv->name[0] == ':') {
       continue;
     }
-    switch (kv.token) {
+    switch (kv->token) {
     case HD_CONNECTION:
     case HD_COOKIE:
-    case HD_FORWARDED:
     case HD_HOST:
     case HD_HTTP2_SETTINGS:
     case HD_KEEP_ALIVE:
     case HD_PROXY_CONNECTION:
     case HD_SERVER:
     case HD_UPGRADE:
-    case HD_VIA:
-    case HD_X_FORWARDED_FOR:
-    case HD_X_FORWARDED_PROTO:
       continue;
+    case HD_FORWARDED:
+      if (flags & HDOP_STRIP_FORWARDED) {
+        continue;
+      }
+
+      if (it_forwarded == std::end(headers)) {
+        it_forwarded = it;
+        continue;
+      }
+
+      kv = &(*it_forwarded);
+      it_forwarded = it;
+      break;
+    case HD_X_FORWARDED_FOR:
+      if (flags & HDOP_STRIP_X_FORWARDED_FOR) {
+        continue;
+      }
+
+      if (it_xff == std::end(headers)) {
+        it_xff = it;
+        continue;
+      }
+
+      kv = &(*it_xff);
+      it_xff = it;
+      break;
+    case HD_X_FORWARDED_PROTO:
+      if (flags & HDOP_STRIP_X_FORWARDED_PROTO) {
+        continue;
+      }
+
+      if (it_xfp == std::end(headers)) {
+        it_xfp = it;
+        continue;
+      }
+
+      kv = &(*it_xfp);
+      it_xfp = it;
+      break;
+    case HD_VIA:
+      if (flags & HDOP_STRIP_VIA) {
+        continue;
+      }
+
+      if (it_via == std::end(headers)) {
+        it_via = it;
+        continue;
+      }
+
+      kv = &(*it_via);
+      it_via = it;
+      break;
     }
-    capitalize(buf, kv.name);
+    capitalize(buf, kv->name);
     buf->append(": ");
-    buf->append(kv.value);
+    buf->append(kv->value);
     buf->append("\r\n");
   }
 }
@@ -1486,7 +1602,7 @@ template <typename InputIt> InputIt eat_file(InputIt first, InputIt last) {
   for (; p != first && *(p - 1) != '/'; --p)
     ;
   if (p == first) {
-    // this should not happend in normal case, where we expect path
+    // this should not happened in normal case, where we expect path
     // starts with '/'
     *first++ = '/';
     return first;

src/http2.h

@@ -187,24 +187,50 @@ nghttp2_nv make_nv_ls_nocopy(const char (&name)[N], const StringRef &value) {
           NGHTTP2_NV_FLAG_NO_COPY_NAME | NGHTTP2_NV_FLAG_NO_COPY_VALUE};
 }
 
+enum HeaderBuildOp {
+  HDOP_NONE,
+  // Forwarded header fields must be stripped.  If this flag is not
+  // set, all Forwarded header fields other than last one are added.
+  HDOP_STRIP_FORWARDED = 1,
+  // X-Forwarded-For header fields must be stripped.  If this flag is
+  // not set, all X-Forwarded-For header fields other than last one
+  // are added.
+  HDOP_STRIP_X_FORWARDED_FOR = 1 << 1,
+  // X-Forwarded-Proto header fields must be stripped.  If this flag
+  // is not set, all X-Forwarded-Proto header fields other than last
+  // one are added.
+  HDOP_STRIP_X_FORWARDED_PROTO = 1 << 2,
+  // Via header fields must be stripped.  If this flag is not set, all
+  // Via header fields other than last one are added.
+  HDOP_STRIP_VIA = 1 << 3,
+  // Strip above all header fields.
+  HDOP_STRIP_ALL = HDOP_STRIP_FORWARDED | HDOP_STRIP_X_FORWARDED_FOR |
+                   HDOP_STRIP_X_FORWARDED_PROTO | HDOP_STRIP_VIA,
+};
+
 // Appends headers in |headers| to |nv|.  |headers| must be indexed
 // before this call (its element's token field is assigned).  Certain
 // headers, including disallowed headers in HTTP/2 spec and headers
-// which require special handling (i.e. via), are not copied.
+// which require special handling (i.e. via), are not copied.  |flags|
+// is one or more of HeaderBuildOp flags.  They tell function that
+// certain header fields should not be added.
 void copy_headers_to_nva(std::vector<nghttp2_nv> &nva,
-                         const HeaderRefs &headers);
+                         const HeaderRefs &headers, uint32_t flags);
 
 // Just like copy_headers_to_nva(), but this adds
 // NGHTTP2_NV_FLAG_NO_COPY_NAME and NGHTTP2_NV_FLAG_NO_COPY_VALUE.
 void copy_headers_to_nva_nocopy(std::vector<nghttp2_nv> &nva,
-                                const HeaderRefs &headers);
+                                const HeaderRefs &headers, uint32_t flags);
 
 // Appends HTTP/1.1 style header lines to |buf| from headers in
 // |headers|.  |headers| must be indexed before this call (its
 // element's token field is assigned).  Certain headers, which
 // requires special handling (i.e. via and cookie), are not appended.
+// |flags| is one or more of HeaderBuildOp flags.  They tell function
+// that certain header fields should not be added.
 void build_http1_headers_from_headers(DefaultMemchunks *buf,
-                                      const HeaderRefs &headers);
+                                      const HeaderRefs &headers,
+                                      uint32_t flags);
 
 // Return positive window_size_increment if WINDOW_UPDATE should be
 // sent for the stream |stream_id|. If |stream_id| == 0, this function
@@ -242,7 +268,7 @@ void erase_header(HeaderRef *hd);
 //
 // This function returns the new rewritten URI on success. If the
 // location URI is not subject to the rewrite, this function returns
-// emtpy string.
+// empty string.
 StringRef rewrite_location_uri(BlockAllocator &balloc, const StringRef &uri,
                                const http_parser_url &u,
                                const StringRef &match_host,

src/http2_test.cc

@@ -150,11 +150,33 @@ auto headers = HeaderRefs{
     {StringRef::from_lit("zulu"), StringRef::from_lit("12")}};
 } // namespace
 
+namespace {
+auto headers2 = HeaderRefs{
+    {StringRef::from_lit("x-forwarded-for"), StringRef::from_lit("xff1"), false,
+     http2::HD_X_FORWARDED_FOR},
+    {StringRef::from_lit("x-forwarded-for"), StringRef::from_lit("xff2"), false,
+     http2::HD_X_FORWARDED_FOR},
+    {StringRef::from_lit("x-forwarded-proto"), StringRef::from_lit("xfp1"),
+     false, http2::HD_X_FORWARDED_PROTO},
+    {StringRef::from_lit("x-forwarded-proto"), StringRef::from_lit("xfp2"),
+     false, http2::HD_X_FORWARDED_PROTO},
+    {StringRef::from_lit("forwarded"), StringRef::from_lit("fwd1"), false,
+     http2::HD_FORWARDED},
+    {StringRef::from_lit("forwarded"), StringRef::from_lit("fwd2"), false,
+     http2::HD_FORWARDED},
+    {StringRef::from_lit("via"), StringRef::from_lit("via1"), false,
+     http2::HD_VIA},
+    {StringRef::from_lit("via"), StringRef::from_lit("via2"), false,
+     http2::HD_VIA},
+};
+} // namespace
+
 void test_http2_copy_headers_to_nva(void) {
   auto ans = std::vector<int>{0, 1, 4, 5, 6, 7, 12};
   std::vector<nghttp2_nv> nva;
 
-  http2::copy_headers_to_nva_nocopy(nva, headers);
+  http2::copy_headers_to_nva_nocopy(nva, headers,
+                                    http2::HDOP_STRIP_X_FORWARDED_FOR);
   CU_ASSERT(7 == nva.size());
   for (size_t i = 0; i < ans.size(); ++i) {
     check_nv(headers[ans[i]], &nva[i]);
@@ -169,7 +191,7 @@ void test_http2_copy_headers_to_nva(void) {
   }
 
   nva.clear();
-  http2::copy_headers_to_nva(nva, headers);
+  http2::copy_headers_to_nva(nva, headers, http2::HDOP_STRIP_X_FORWARDED_FOR);
   CU_ASSERT(7 == nva.size());
   for (size_t i = 0; i < ans.size(); ++i) {
     check_nv(headers[ans[i]], &nva[i]);
@@ -180,12 +202,27 @@ void test_http2_copy_headers_to_nva(void) {
       CU_ASSERT(NGHTTP2_NV_FLAG_NONE == nva[i].flags);
     }
   }
+
+  nva.clear();
+
+  auto ans2 = std::vector<int>{0, 2, 4, 6};
+  http2::copy_headers_to_nva(nva, headers2, http2::HDOP_NONE);
+  CU_ASSERT(ans2.size() == nva.size());
+  for (size_t i = 0; i < ans2.size(); ++i) {
+    check_nv(headers2[ans2[i]], &nva[i]);
+  }
+
+  nva.clear();
+
+  http2::copy_headers_to_nva(nva, headers2, http2::HDOP_STRIP_ALL);
+  CU_ASSERT(nva.empty());
 }
 
 void test_http2_build_http1_headers_from_headers(void) {
   MemchunkPool pool;
   DefaultMemchunks buf(&pool);
-  http2::build_http1_headers_from_headers(&buf, headers);
+  http2::build_http1_headers_from_headers(&buf, headers,
+                                          http2::HDOP_STRIP_X_FORWARDED_FOR);
   auto hdrs = std::string(buf.head->pos, buf.head->last);
   CU_ASSERT("Alpha: 0\r\n"
             "Bravo: 1\r\n"
@@ -196,6 +233,21 @@ void test_http2_build_http1_headers_from_headers(void) {
             "Te: 8\r\n"
             "Te: 9\r\n"
             "Zulu: 12\r\n" == hdrs);
+
+  buf.reset();
+
+  http2::build_http1_headers_from_headers(&buf, headers2, http2::HDOP_NONE);
+  hdrs = std::string(buf.head->pos, buf.head->last);
+  CU_ASSERT("X-Forwarded-For: xff1\r\n"
+            "X-Forwarded-Proto: xfp1\r\n"
+            "Forwarded: fwd1\r\n"
+            "Via: via1\r\n" == hdrs);
+
+  buf.reset();
+
+  http2::build_http1_headers_from_headers(&buf, headers2,
+                                          http2::HDOP_STRIP_ALL);
+  CU_ASSERT(0 == buf.rleft());
 }
 
 void test_http2_lws(void) {

src/includes/nghttp2/asio_http2_client.h

@@ -118,6 +118,28 @@ private:
   std::unique_ptr<request_impl> impl_;
 };
 
+// Wrapper around an nghttp2_priority_spec.
+class priority_spec {
+public:
+  // The default ctor is used only by sentinel values.
+  priority_spec() = default;
+
+  // Create a priority spec with the given priority settings.
+  explicit priority_spec(const int32_t stream_id, const int32_t weight,
+                         const bool exclusive = false);
+
+  // Return a pointer to a valid nghttp2 priority spec, or null.
+  const nghttp2_priority_spec *get() const;
+
+  // Indicates whether or not this spec is valid (i.e. was constructed with
+  // values).
+  const bool valid() const;
+
+private:
+  nghttp2_priority_spec spec_;
+  bool valid_ = false;
+};
+
 class session_impl;
 
 class session {
@@ -177,7 +199,8 @@ public:
   // succeeds, or nullptr and |ec| contains error message.
   const request *submit(boost::system::error_code &ec,
                         const std::string &method, const std::string &uri,
-                        header_map h = header_map{}) const;
+                        header_map h = header_map{},
+                        priority_spec prio = priority_spec()) const;
 
   // Submits request to server using |method| (e.g., "GET"), |uri|
   // (e.g., "http://localhost/") and optionally additional header
@@ -186,7 +209,8 @@ public:
   // contains error message.
   const request *submit(boost::system::error_code &ec,
                         const std::string &method, const std::string &uri,
-                        std::string data, header_map h = header_map{}) const;
+                        std::string data, header_map h = header_map{},
+                        priority_spec prio = priority_spec()) const;
 
   // Submits request to server using |method| (e.g., "GET"), |uri|
   // (e.g., "http://localhost/") and optionally additional header
@@ -195,7 +219,8 @@ public:
   // nullptr and |ec| contains error message.
   const request *submit(boost::system::error_code &ec,
                         const std::string &method, const std::string &uri,
-                        generator_cb cb, header_map h = header_map{}) const;
+                        generator_cb cb, header_map h = header_map{},
+                        priority_spec prio = priority_spec()) const;
 
 private:
   std::shared_ptr<session_impl> impl_;

src/inflatehd.cc

@@ -48,7 +48,9 @@
 
 namespace nghttp2 {
 
-typedef struct { int dump_header_table; } inflate_config;
+typedef struct {
+  int dump_header_table;
+} inflate_config;
 
 static inflate_config config;
 

src/memchunk.h

@@ -28,7 +28,15 @@
 #include "nghttp2_config.h"
 
 #include <limits.h>
+#ifdef _WIN32
+/* Structure for scatter/gather I/O.  */
+struct iovec {
+  void *iov_base; /* Pointer to data.  */
+  size_t iov_len; /* Length of data.  */
+};
+#else // !_WIN32
 #include <sys/uio.h>
+#endif // !_WIN32
 
 #include <cassert>
 #include <cstring>
@@ -50,23 +58,21 @@ namespace nghttp2 {
 #endif // !defined(IOV_MAX) || IOV_MAX >= DEFAULT_WR_IOVCNT
 
 template <size_t N> struct Memchunk {
-  Memchunk(std::unique_ptr<Memchunk> next_chunk)
-      : pos(std::begin(buf)),
-        last(pos),
-        knext(std::move(next_chunk)),
-        next(nullptr) {}
+  Memchunk(Memchunk *next_chunk)
+      : pos(std::begin(buf)), last(pos), knext(next_chunk), next(nullptr) {}
   size_t len() const { return last - pos; }
   size_t left() const { return std::end(buf) - last; }
   void reset() { pos = last = std::begin(buf); }
   std::array<uint8_t, N> buf;
   uint8_t *pos, *last;
-  std::unique_ptr<Memchunk> knext;
+  Memchunk *knext;
   Memchunk *next;
   static const size_t size = N;
 };
 
 template <typename T> struct Pool {
   Pool() : pool(nullptr), freelist(nullptr), poolsize(0) {}
+  ~Pool() { clear(); }
   T *get() {
     if (freelist) {
       auto m = freelist;
@@ -76,9 +82,9 @@ template <typename T> struct Pool {
       return m;
     }
 
-    pool = make_unique<T>(std::move(pool));
+    pool = new T{pool};
     poolsize += T::size;
-    return pool.get();
+    return pool;
   }
   void recycle(T *m) {
     m->next = freelist;
@@ -86,11 +92,16 @@ template <typename T> struct Pool {
   }
   void clear() {
     freelist = nullptr;
+    for (auto p = pool; p;) {
+      auto knext = p->knext;
+      delete p;
+      p = knext;
+    }
     pool = nullptr;
     poolsize = 0;
   }
   using value_type = T;
-  std::unique_ptr<T> pool;
+  T *pool;
   T *freelist;
   size_t poolsize;
 };

src/memchunk_test.cc

@@ -42,34 +42,34 @@ void test_pool_recycle(void) {
 
   auto m1 = pool.get();
 
-  CU_ASSERT(m1 == pool.pool.get());
+  CU_ASSERT(m1 == pool.pool);
   CU_ASSERT(MemchunkPool::value_type::size == pool.poolsize);
   CU_ASSERT(nullptr == pool.freelist);
 
   auto m2 = pool.get();
 
-  CU_ASSERT(m2 == pool.pool.get());
+  CU_ASSERT(m2 == pool.pool);
   CU_ASSERT(2 * MemchunkPool::value_type::size == pool.poolsize);
   CU_ASSERT(nullptr == pool.freelist);
-  CU_ASSERT(m1 == m2->knext.get());
-  CU_ASSERT(nullptr == m1->knext.get());
+  CU_ASSERT(m1 == m2->knext);
+  CU_ASSERT(nullptr == m1->knext);
 
   auto m3 = pool.get();
 
-  CU_ASSERT(m3 == pool.pool.get());
+  CU_ASSERT(m3 == pool.pool);
   CU_ASSERT(3 * MemchunkPool::value_type::size == pool.poolsize);
   CU_ASSERT(nullptr == pool.freelist);
 
   pool.recycle(m3);
 
-  CU_ASSERT(m3 == pool.pool.get());
+  CU_ASSERT(m3 == pool.pool);
   CU_ASSERT(3 * MemchunkPool::value_type::size == pool.poolsize);
   CU_ASSERT(m3 == pool.freelist);
 
   auto m4 = pool.get();
 
   CU_ASSERT(m3 == m4);
-  CU_ASSERT(m4 == pool.pool.get());
+  CU_ASSERT(m4 == pool.pool);
   CU_ASSERT(3 * MemchunkPool::value_type::size == pool.poolsize);
   CU_ASSERT(nullptr == pool.freelist);
 

src/network.h

@@ -33,7 +33,11 @@
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
 #endif // HAVE_SYS_SOCKET_H
+#ifdef _WIN32
+#include <ws2tcpip.h>
+#else // !_WIN32
 #include <sys/un.h>
+#endif // !_WIN32
 #ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif // HAVE_NETINET_IN_H
@@ -48,7 +52,9 @@ union sockaddr_union {
   sockaddr sa;
   sockaddr_in6 in6;
   sockaddr_in in;
+#ifndef _WIN32
   sockaddr_un un;
+#endif // !_WIN32
 };
 
 struct Address {

src/nghttp.cc

@@ -57,7 +57,7 @@
 #include "HtmlParser.h"
 #include "util.h"
 #include "base64.h"
-#include "ssl.h"
+#include "tls.h"
 #include "template.h"
 
 #ifndef O_BINARY
@@ -89,7 +89,11 @@ enum {
 
 namespace {
 constexpr auto anchors = std::array<Anchor, 5>{{
-    {3, 0, 201}, {5, 0, 101}, {7, 0, 1}, {9, 7, 1}, {11, 3, 1},
+    {3, 0, 201},
+    {5, 0, 101},
+    {7, 0, 1},
+    {9, 7, 1},
+    {11, 3, 1},
 }};
 } // namespace
 
@@ -116,7 +120,8 @@ Config::Config()
       no_dep(false),
       hexdump(false),
       no_push(false),
-      expect_continue(false) {
+      expect_continue(false),
+      verify_peer(true) {
   nghttp2_option_new(&http2_option);
   nghttp2_option_set_peer_max_concurrent_streams(http2_option,
                                                  peer_max_concurrent_streams);
@@ -171,6 +176,8 @@ Request::~Request() { nghttp2_gzip_inflate_del(inflater); }
 
 void Request::init_inflater() {
   int rv;
+  // This is required with --disable-assert.
+  (void)rv;
   rv = nghttp2_gzip_inflate_new(&inflater);
   assert(rv == 0);
 }
@@ -401,17 +408,10 @@ int htp_msg_begincb(http_parser *htp) {
 }
 } // namespace
 
-namespace {
-int htp_statuscb(http_parser *htp, const char *at, size_t length) {
-  auto client = static_cast<HttpClient *>(htp->data);
-  client->upgrade_response_status_code = htp->status_code;
-  return 0;
-}
-} // namespace
-
 namespace {
 int htp_msg_completecb(http_parser *htp) {
   auto client = static_cast<HttpClient *>(htp->data);
+  client->upgrade_response_status_code = htp->status_code;
   client->upgrade_response_complete = true;
   return 0;
 }
@@ -421,7 +421,7 @@ namespace {
 constexpr http_parser_settings htp_hooks = {
     htp_msg_begincb,   // http_cb      on_message_begin;
     nullptr,           // http_data_cb on_url;
-    htp_statuscb,      // http_data_cb on_status;
+    nullptr,           // http_data_cb on_status;
     nullptr,           // http_data_cb on_header_field;
     nullptr,           // http_data_cb on_header_value;
     nullptr,           // http_cb      on_headers_complete;
@@ -646,6 +646,11 @@ int HttpClient::resolve_host(const std::string &host, uint16_t port) {
   return 0;
 }
 
+namespace {
+// Just returns 1 to continue handshake.
+int verify_cb(int preverify_ok, X509_STORE_CTX *ctx) { return 1; }
+} // namespace
+
 int HttpClient::initiate_connection() {
   int rv;
 
@@ -675,6 +680,17 @@ int HttpClient::initiate_connection() {
       const auto &host_string =
           config.host_override.empty() ? host : config.host_override;
 
+#if (!defined(LIBRESSL_VERSION_NUMBER) &&                                      \
+     OPENSSL_VERSION_NUMBER >= 0x10002000L) ||                                 \
+    defined(OPENSSL_IS_BORINGSSL)
+      auto param = SSL_get0_param(ssl);
+      X509_VERIFY_PARAM_set_hostflags(param, 0);
+      X509_VERIFY_PARAM_set1_host(param, host_string.c_str(),
+                                  host_string.size());
+#endif // (!defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >=
+       // 0x10002000L) || defined(OPENSSL_IS_BORINGSSL)
+      SSL_set_verify(ssl, SSL_VERIFY_PEER, verify_cb);
+
       if (!util::numeric_host(host_string.c_str())) {
         SSL_set_tlsext_host_name(ssl, host_string.c_str());
       }
@@ -1295,6 +1311,14 @@ int HttpClient::tls_handshake() {
   readfn = &HttpClient::read_tls;
   writefn = &HttpClient::write_tls;
 
+  if (config.verify_peer) {
+    auto verify_res = SSL_get_verify_result(ssl);
+    if (verify_res != X509_V_OK) {
+      std::cerr << "[WARNING] Certificate verification failed: "
+                << X509_verify_cert_error_string(verify_res) << std::endl;
+    }
+  }
+
   if (connection_made() != 0) {
     return -1;
   }
@@ -2247,15 +2271,20 @@ int communicate(
     SSL_CTX_set_mode(ssl_ctx, SSL_MODE_AUTO_RETRY);
     SSL_CTX_set_mode(ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
 
-    if (nghttp2::ssl::ssl_ctx_set_proto_versions(
-            ssl_ctx, nghttp2::ssl::NGHTTP2_TLS_MIN_VERSION,
-            nghttp2::ssl::NGHTTP2_TLS_MAX_VERSION) != 0) {
+    if (SSL_CTX_set_default_verify_paths(ssl_ctx) != 1) {
+      std::cerr << "[WARNING] Could not load system trusted CA certificates: "
+                << ERR_error_string(ERR_get_error(), nullptr) << std::endl;
+    }
+
+    if (nghttp2::tls::ssl_ctx_set_proto_versions(
+            ssl_ctx, nghttp2::tls::NGHTTP2_TLS_MIN_VERSION,
+            nghttp2::tls::NGHTTP2_TLS_MAX_VERSION) != 0) {
       std::cerr << "[ERROR] Could not set TLS versions" << std::endl;
       result = -1;
       goto fin;
     }
 
-    if (SSL_CTX_set_cipher_list(ssl_ctx, ssl::DEFAULT_CIPHER_LIST) == 0) {
+    if (SSL_CTX_set_cipher_list(ssl_ctx, tls::DEFAULT_CIPHER_LIST) == 0) {
       std::cerr << "[ERROR] " << ERR_error_string(ERR_get_error(), nullptr)
                 << std::endl;
       result = -1;
@@ -2433,8 +2462,8 @@ int run(char **uris, int n) {
     nghttp2_session_callbacks_set_on_invalid_frame_recv_callback(
         callbacks, verbose_on_invalid_frame_recv_callback);
 
-    nghttp2_session_callbacks_set_error_callback(callbacks,
-                                                 verbose_error_callback);
+    nghttp2_session_callbacks_set_error_callback2(callbacks,
+                                                  verbose_error_callback);
   }
 
   nghttp2_session_callbacks_set_on_data_chunk_recv_callback(
@@ -2701,6 +2730,9 @@ Options:
               (up to  a short  timeout)  until the server sends  a 100
               Continue interim response. This option is ignored unless
               combined with the -d option.
+  -y, --no-verify-peer
+              Suppress  warning  on  server  certificate  verification
+              failure.
   --version   Display version information and exit.
   -h, --help  Display this help and exit.
 
@@ -2718,7 +2750,7 @@ Options:
 } // namespace
 
 int main(int argc, char **argv) {
-  ssl::libssl_init();
+  tls::libssl_init();
 
   bool color = false;
   while (1) {
@@ -2742,6 +2774,7 @@ int main(int argc, char **argv) {
         {"header-table-size", required_argument, nullptr, 'c'},
         {"padding", required_argument, nullptr, 'b'},
         {"har", required_argument, nullptr, 'r'},
+        {"no-verify-peer", no_argument, nullptr, 'y'},
         {"cert", required_argument, &flag, 1},
         {"key", required_argument, &flag, 2},
         {"color", no_argument, &flag, 3},
@@ -2757,8 +2790,9 @@ int main(int argc, char **argv) {
         {"encoder-header-table-size", required_argument, &flag, 14},
         {nullptr, 0, nullptr, 0}};
     int option_index = 0;
-    int c = getopt_long(argc, argv, "M:Oab:c:d:gm:np:r:hH:vst:uw:W:",
-                        long_options, &option_index);
+    int c =
+        getopt_long(argc, argv, "M:Oab:c:d:m:np:r:hH:vst:uw:yW:", long_options,
+                    &option_index);
     if (c == -1) {
       break;
     }
@@ -2888,6 +2922,9 @@ int main(int argc, char **argv) {
       config.min_header_table_size = std::min(config.min_header_table_size, n);
       break;
     }
+    case 'y':
+      config.verify_peer = false;
+      break;
     case '?':
       util::show_candidates(argv[optind - 1], long_options);
       exit(EXIT_FAILURE);

src/nghttp.h

@@ -96,6 +96,7 @@ struct Config {
   bool hexdump;
   bool no_push;
   bool expect_continue;
+  bool verify_peer;
 };
 
 enum class RequestState { INITIAL, ON_REQUEST, ON_RESPONSE, ON_COMPLETE };

src/nghttp2_gzip.c

@@ -72,6 +72,7 @@ int nghttp2_gzip_inflate(nghttp2_gzip *inflater, uint8_t *out,
   switch (rv) {
   case Z_STREAM_END:
     inflater->finished = 1;
+  /* FALL THROUGH */
   case Z_OK:
   case Z_BUF_ERROR:
     return 0;

src/nghttp2_gzip_test.c

@@ -43,14 +43,14 @@ static size_t deflate_data(uint8_t *out, size_t outlen, const uint8_t *in,
   zst.opaque = Z_NULL;
 
   rv = deflateInit(&zst, Z_DEFAULT_COMPRESSION);
-  assert(rv == Z_OK);
+  CU_ASSERT(rv == Z_OK);
 
   zst.avail_in = (unsigned int)inlen;
   zst.next_in = (uint8_t *)in;
   zst.avail_out = (unsigned int)outlen;
   zst.next_out = out;
   rv = deflate(&zst, Z_SYNC_FLUSH);
-  assert(rv == Z_OK);
+  CU_ASSERT(rv == Z_OK);
 
   deflateEnd(&zst);
 

src/nghttpd.cc

@@ -48,7 +48,7 @@
 #include "app_helper.h"
 #include "HttpServer.h"
 #include "util.h"
-#include "ssl.h"
+#include "tls.h"
 
 namespace nghttp2 {
 
@@ -174,8 +174,7 @@ Options:
   --mime-types-file=<PATH>
               Path  to file  that contains  MIME media  types and  the
               extensions that represent them.
-              Default: )"
-      << config.mime_types_file << R"(
+              Default: )" << config.mime_types_file << R"(
   --no-content-length
               Don't send content-length header field.
   --version   Display version information and exit.
@@ -190,10 +189,10 @@ Options:
 } // namespace
 
 int main(int argc, char **argv) {
-  ssl::libssl_init();
+  tls::libssl_init();
 
 #ifndef NOTHREADS
-  ssl::LibsslGlobalLock lock;
+  tls::LibsslGlobalLock lock;
 #endif // NOTHREADS
 
   Config config;