Fix listings and session print

Hello,

Setuptools 69.0.0 deprecated a bunch stuff leading to a nasty errors during install.

> File "/tmp/pip-build-env-w815o5v3/overlay/lib/python3.11/site-packages/setuptools/config/_apply_pyprojecttoml.py", line 183, in _license
>          _set_config(dist, "license", val["text"])
>                                       ~~~^^^^^^^^
> KeyError: 'text'
> [end of output]

__version__.py wasn't used anywhere except setup.py so removing and setting it all pyproject.toml is safe.

During this decided to move as much as I could out of setup.py, zip-safe has been obsolete for modern setuptools installation methods so dropped it.

From c0be008217350f03de7f856866a402d95b5db2a3 Mon Sep 17 00:00:00 2001
From: Alfred Wingate <parona@protonmail.com>
Date: Tue, 21 Nov 2023 15:13:35 +0200
Subject: [PATCH] Move metadata to project.toml

* Setuptools 69.0.0 deprecated a slew of old style configurations.

Signed-off-by: Alfred Wingate <parona@protonmail.com>

.editorconfig

@@ -0,0 +1,14 @@
+root = true
+
+[*]
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+end_of_line = lf
+
+[*.{c,cpp,h,hh,py,ts,js,java,m}]
+indent_style = space
+indent_size = 4
+
+[Makefile]
+indent_style = tab

.gitignore

@@ -9,6 +9,13 @@
 /python/dist
 /javascript/checksums.txt
 /javascript/checksums.txt.asc
+/javascript/olm_prefix.js
+/compile_commands.json
+/.clang-format
+.ccls-cache/
+/python/.eggs
+/python/install-temp
+/result
 
 # Xcode
 build/
@@ -30,4 +37,7 @@ xcuserdata/
 *.dSYM.zip
 *.dSYM
 Pods/
-*.xcworkspace
+*.xcworkspace
+
+# JetBrains tools
+.idea/

.gitlab-ci.yml

@@ -0,0 +1,51 @@
+default:
+  image: registry.fedoraproject.org/fedora-minimal:latest
+
+stages:
+  - build
+  - test
+  - trigger
+
+build:lib:
+  stage: build
+  tags:
+    - docker
+  script:
+    - microdnf --assumeyes --nodocs install cmake gcc gcc-c++
+    - cmake . -Bbuild
+    - cmake --build build
+  artifacts:
+    paths:
+      - build/
+
+test:lib:
+  stage: test
+  tags:
+    - docker
+  needs:
+    - build:lib
+  script:
+    - microdnf --assumeyes --nodocs install cmake
+    - pushd build/tests
+    - ctest .
+  artifacts:
+    paths:
+      - build/tests/Testing/Temporary/
+
+trigger:android:
+  stage: trigger
+  trigger:
+    strategy: depend
+    include: android/.gitlab-ci.yml
+
+trigger:javascript:
+  stage: trigger
+  trigger:
+    strategy: depend
+    include: javascript/.gitlab-ci.yml
+
+trigger:python:
+  stage: trigger
+  trigger:
+    strategy: depend
+    include: python/.gitlab-ci.yml

CHANGELOG.rst

@@ -1,3 +1,135 @@
+Changes in `3.2.16 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.16>`_
+===========================================================================
+
+This release includes the following changes since 3.2.15:
+
+* Fix and modernize the Python packaging (thanks to Alfred Wingate)
+
+Changes in `3.2.15 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.15>`_
+===========================================================================
+
+This release includes the following changes since 3.2.14:
+
+* Improvements to Python packaging
+  * No longer depend on ``future`` since Python 2 is no longer supported.
+  * Improve compatibility with tox 4.
+  * Add support for making standalone sdist.
+* Improvements to Nix flake (Thanks to Jon Ringer)
+  * Improve structure.
+  * Enable Darwin builds.
+* Typescript type fix.
+
+Changes in `3.2.14 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.14>`_
+===========================================================================
+
+This release includes the following changes since 3.2.13:
+
+* TypeScript type improvements.
+* Improvements to Python packaging
+* Documentation improvements.
+
+Changes in `3.2.13 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.13>`_
+===========================================================================
+
+This release includes the following changes since 3.2.12:
+
+* Fix compilation with newer versions of emscripten.
+  * The npm package is compiled with emscripten 3.1.17 to fix compatibility with
+    node 18.
+* Add py.typed to Python wheels.
+* Some documentation fixes and updates.
+* Improve the pkgconfig file.
+
+Changes in `3.2.12 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.12>`_
+===========================================================================
+
+This release includes the following changes since 3.2.11:
+
+* Expose olm_sas_calculate_mac_fixed_base64 in the bindings.
+* Allow memory to grow in wasm.  Thanks to benkuly for the suggestion.
+* Fix Python type hints.
+* Some Python build fixes.
+* Initial work on a Nix flake for building and testing.
+
+Changes in `3.2.11 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.11>`_
+===========================================================================
+
+This release includes the following changes since 3.2.10:
+
+* Fix building documentation.  Thanks to Jonas Smedegaard.  The documents
+  written in Markdown are now converted to HTML using Pandoc.
+* Add methods for getting unpublished fallback key in Objective-C binding.
+* Add public pickle/unpickle methods to Java binding.
+* Add wrapper for olm_session_describe to Java binding.  Thanks to Alex Baker.
+
+Changes in `3.2.10 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.10>`_
+===========================================================================
+
+This release includes no change since 3.2.9, but is created to be able to
+publish again the Android library on MavenCentral.
+
+Changes in `3.2.9 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.9>`_
+=========================================================================
+
+This release includes the following changes since 3.2.8:
+
+* Switch C++ tests to use doctest.  Thanks to Nicolas Werner.
+* Switch JavaScript tests to use jasmine instead of deprecated jasmine-node.
+* Add session describe function to Python binding.  Thanks to Tulir Asokan.
+
+Changes in `3.2.8 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.8>`_
+=========================================================================
+
+This release includes the following changes since 3.2.7:
+
+* Improve handling of olm_session_describe when the buffer is too small.
+* Ensure random arrays are blanked in JavaScript bindings.
+
+Changes in `3.2.7 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.7>`_
+=========================================================================
+
+This release includes the following changes since 3.2.6:
+
+* Fix installation with the Makefile.
+* Fix exporting again, so we only export olm symbols.
+* Fix WASM build.  Thanks to Benjamin Kampmann.
+* Add more functions for fallback keys.
+
+Changes in `3.2.6 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.6>`_
+=========================================================================
+
+This release includes the following changes since 3.2.5:
+
+* Fix building on various platforms when using CMake.  Building from the
+  Makefile still assumes that it is using gcc.
+
+Changes in `3.2.5 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.5>`_
+=========================================================================
+
+This release includes the following changes since 3.2.4:
+
+* Add functions for getting error codes rather than error strings.  Thanks to
+  Nicolas Werner for the suggestion.
+* Only export olm symbols.  Thanks to Mohammed Sadiq for the suggestion.
+* Improve error handling in unpickle functions.
+* Add support for fallback keys to the Objective-C and Android bindings.
+
+Changes in `3.2.4 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.4>`_
+=========================================================================
+
+This release includes the following changes since 3.2.3:
+
+* Android build fixes.
+
+Changes in `3.2.3 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.3>`_
+=========================================================================
+
+This release includes the following changes since 3.2.2:
+
+* Add some checks for invalid input and ensure all fields are initialized.
+* Include LibreJS license tags.  Thanks to Johannes Marbach for the suggestion.
+* Support for Swift Package Manager.  Thanks to Johannes Marbach.
+
 Changes in `3.2.2 <https://gitlab.matrix.org/matrix-org/olm/tags/3.2.2>`_
 =========================================================================
 
@@ -45,11 +177,13 @@ Changes in `3.1.5 <https://gitlab.matrix.org/matrix-org/olm/tags/3.1.5>`_
 This release includes the following changes since 3.1.4:
 
 * Build improvements:
+
   * Fix CMake handling when installing in a non-standard location. Thanks to
     Alexey Rusakov.
   * Add support in the Makefile for creating a WASM-ready archive. Thanks to
     stoically.
   * Improve support for LLVM is Makefile. Thanks to caywin25 for reporting.
+
 * Add a TypeScript definition file.
 * Some documentation and example fixes.
 * Add list of bindings to the README.

CMakeLists.txt

@@ -1,11 +1,9 @@
 cmake_minimum_required(VERSION 3.4)
 
-project(olm VERSION 3.2.2 LANGUAGES CXX C)
+project(olm VERSION 3.2.16 LANGUAGES CXX C)
 
 option(OLM_TESTS "Build tests" ON)
 option(BUILD_SHARED_LIBS "Build as a shared library" ON)
-option(OLM_USE_OPENSSL "Use OpenSSL instead of bundled crypto-algorithms and curve25519-donna" OFF)
-option(OLM_USE_LIBRESSL "Use LibreSSL instead of bundled crypto-algorithms" OFF)
 
 add_definitions(-DOLMLIB_VERSION_MAJOR=${PROJECT_VERSION_MAJOR})
 add_definitions(-DOLMLIB_VERSION_MINOR=${PROJECT_VERSION_MINOR})
@@ -23,6 +21,10 @@ if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release)
 endif()
 
+set(CMAKE_C_VISIBILITY_PRESET hidden)
+set(CMAKE_CXX_VISIBILITY_PRESET hidden)
+set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
+
 add_library(olm
     src/account.cpp
     src/base64.cpp
@@ -43,25 +45,17 @@ add_library(olm
     src/megolm.c
     src/olm.cpp
     src/outbound_group_session.c
-    src/pickle_encoding.c)
+    src/pickle_encoding.c
+
+    lib/crypto-algorithms/aes.c
+    lib/crypto-algorithms/sha256.c
+    lib/curve25519-donna/curve25519-donna.c)
 add_library(Olm::Olm ALIAS olm)
 
-if(OLM_USE_OPENSSL)
-    find_package(OpenSSL REQUIRED)
-    target_link_libraries(olm OpenSSL::Crypto)
-    target_compile_definitions(olm PRIVATE OLM_USE_OPENSSL)
-elseif(OLM_USE_LIBRESSL)
-    find_package(LibreSSL REQUIRED)
-    target_link_libraries(olm LibreSSL::Crypto)
-    target_compile_definitions(olm PRIVATE OLM_USE_LIBRESSL)
-    target_sources(olm PRIVATE
-        lib/curve25519-donna/curve25519-donna.c)
-else()
-    target_sources(olm PRIVATE
-        lib/curve25519-donna/curve25519-donna.c
-        lib/crypto-algorithms/aes.c
-        lib/crypto-algorithms/sha256.c)
-endif()
+# restrict the exported symbols
+include(GenerateExportHeader)
+generate_export_header(olm
+  EXPORT_FILE_NAME ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/olm_export.h)
 
 target_include_directories(olm
     PUBLIC
@@ -99,10 +93,12 @@ install(TARGETS olm
 set_target_properties(olm PROPERTIES EXPORT_NAME Olm)
 install(FILES
     ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/olm.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/olm_export.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/outbound_group_session.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/inbound_group_session.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/pk.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/sas.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/olm/error.h
     DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/olm)
 
 if (UNIX AND NOT APPLE)

Makefile

@@ -4,15 +4,12 @@ include common.mk
 VERSION := $(MAJOR).$(MINOR).$(PATCH)
 PREFIX ?= /usr/local
 BUILD_DIR := build
-RELEASE_OPTIMIZE_FLAGS ?= -g -O3
-DEBUG_OPTIMIZE_FLAGS ?= -g -O0
+RELEASE_OPTIMIZE_FLAGS ?= -O3
+DEBUG_OPTIMIZE_FLAGS ?= -g -O0 -U_FORTIFY_SOURCE
 JS_OPTIMIZE_FLAGS ?= -O3
-FUZZING_OPTIMIZE_FLAGS ?= -O3
-CC = gcc
+FUZZER_OPTIMIZE_FLAGS ?= -O3
 EMCC = emcc
 EMAR = emar
-AFL_CC = afl-gcc
-AFL_CXX = afl-g++
 AR = ar
 
 UNAME := $(shell uname)
@@ -33,24 +30,29 @@ JS_ASMJS_TARGET := javascript/olm_legacy.js
 WASM_TARGET := $(BUILD_DIR)/wasm/libolm.a
 
 JS_EXPORTED_FUNCTIONS := javascript/exported_functions.json
-JS_EXTRA_EXPORTED_RUNTIME_METHODS := [ALLOC_STACK]
+JS_EXPORTED_RUNTIME_METHODS := [ALLOC_STACK,writeAsciiToMemory,intArrayFromString,UTF8ToString,stringToUTF8]
 JS_EXTERNS := javascript/externs.js
 
-PUBLIC_HEADERS := include/olm/olm.h include/olm/outbound_group_session.h include/olm/inbound_group_session.h include/olm/pk.h include/olm/sas.h
+PUBLIC_HEADERS := include/olm/olm.h include/olm/outbound_group_session.h include/olm/inbound_group_session.h include/olm/pk.h include/olm/sas.h include/olm/error.h include/olm/olm_export.h
 
 SOURCES := $(wildcard src/*.cpp) $(wildcard src/*.c) \
     lib/crypto-algorithms/sha256.c \
     lib/crypto-algorithms/aes.c \
     lib/curve25519-donna/curve25519-donna.c
 
-FUZZER_SOURCES := $(wildcard fuzzers/fuzz_*.cpp) $(wildcard fuzzers/fuzz_*.c)
+FUZZER_SOURCES := $(wildcard fuzzing/fuzzers/fuzz_*.cpp) $(wildcard fuzzing/fuzzers/fuzz_*.c)
 TEST_SOURCES := $(wildcard tests/test_*.cpp) $(wildcard tests/test_*.c)
 
 OBJECTS := $(patsubst %.c,%.o,$(patsubst %.cpp,%.o,$(SOURCES)))
 RELEASE_OBJECTS := $(addprefix $(BUILD_DIR)/release/,$(OBJECTS))
 DEBUG_OBJECTS := $(addprefix $(BUILD_DIR)/debug/,$(OBJECTS))
 FUZZER_OBJECTS := $(addprefix $(BUILD_DIR)/fuzzers/objects/,$(OBJECTS))
-FUZZER_BINARIES := $(addprefix $(BUILD_DIR)/,$(basename $(FUZZER_SOURCES)))
+FUZZER_ASAN_OBJECTS := $(addprefix $(BUILD_DIR)/fuzzers/objects/,$(addprefix asan_,$(OBJECTS)))
+FUZZER_MSAN_OBJECTS := $(addprefix $(BUILD_DIR)/fuzzers/objects/,$(addprefix msan_,$(OBJECTS)))
+FUZZER_DEBUG_OBJECTS := $(addprefix $(BUILD_DIR)/fuzzers/objects/,$(addprefix debug_,$(OBJECTS)))
+FUZZER_BINARIES := $(addprefix $(BUILD_DIR)/fuzzers/,$(basename $(notdir $(FUZZER_SOURCES))))
+FUZZER_ASAN_BINARIES := $(addsuffix _asan,$(FUZZER_BINARIES))
+FUZZER_MSAN_BINARIES := $(addsuffix _msan,$(FUZZER_BINARIES))
 FUZZER_DEBUG_BINARIES := $(patsubst $(BUILD_DIR)/fuzzers/fuzz_%,$(BUILD_DIR)/fuzzers/debug_%,$(FUZZER_BINARIES))
 TEST_BINARIES := $(patsubst tests/%,$(BUILD_DIR)/tests/%,$(basename $(TEST_SOURCES)))
 JS_OBJECTS := $(addprefix $(BUILD_DIR)/javascript/,$(OBJECTS))
@@ -91,7 +93,7 @@ LDFLAGS += -Wall -Werror
 CFLAGS_NATIVE = -fPIC
 CXXFLAGS_NATIVE = -fPIC
 
-EMCCFLAGS = --closure 1 --memory-init-file 0 -s NO_FILESYSTEM=1 -s INVOKE_RUN=0 -s MODULARIZE=1
+EMCCFLAGS = --closure 1 --memory-init-file 0 -s NO_FILESYSTEM=1 -s INVOKE_RUN=0 -s MODULARIZE=1 -Wno-error=closure
 
 # Olm generally doesn't need a lot of memory to encrypt / decrypt its usual
 # payloads (ie. Matrix messages), but we do need about 128K of heap to encrypt
@@ -101,18 +103,29 @@ EMCCFLAGS = --closure 1 --memory-init-file 0 -s NO_FILESYSTEM=1 -s INVOKE_RUN=0
 # (This can't be changed by the app with wasm since it's baked into the wasm).
 # (emscripten also mandates at least 16MB of memory for asm.js now, so
 # we don't use this for the legacy build.)
-EMCCFLAGS_WASM += -s TOTAL_STACK=65536 -s TOTAL_MEMORY=262144
+EMCCFLAGS_WASM += -s TOTAL_STACK=65536 -s TOTAL_MEMORY=262144 -s ALLOW_MEMORY_GROWTH
 
 EMCCFLAGS_ASMJS += -s WASM=0
 
-EMCC.c = $(EMCC) $(CFLAGS) $(CPPFLAGS) -c
-EMCC.cc = $(EMCC) $(CXXFLAGS) $(CPPFLAGS) -c
+EMCC.c = $(EMCC) $(CFLAGS) $(CPPFLAGS) -c -DNDEBUG -DOLM_STATIC_DEFINE=1
+EMCC.cc = $(EMCC) $(CXXFLAGS) $(CPPFLAGS) -c -DNDEBUG -DOLM_STATIC_DEFINE=1
 EMCC_LINK = $(EMCC) $(LDFLAGS) $(EMCCFLAGS)
 
+AFL_CC = afl-clang-fast
+AFL_CXX = afl-clang-fast++
+
 AFL.c = $(AFL_CC) $(CFLAGS) $(CPPFLAGS) -c
 AFL.cc = $(AFL_CXX) $(CXXFLAGS) $(CPPFLAGS) -c
 AFL_LINK.c = $(AFL_CC) $(LDFLAGS) $(CFLAGS) $(CPPFLAGS)
 AFL_LINK.cc = $(AFL_CXX) $(LDFLAGS) $(CXXFLAGS) $(CPPFLAGS)
+AFL_ASAN.c = AFL_USE_ASAN=1 $(AFL_CC) -m32 $(CFLAGS) $(CPPFLAGS) -c
+AFL_ASAN.cc = AFL_USE_ASAN=1 $(AFL_CXX) -m32 $(CXXFLAGS) $(CPPFLAGS) -c
+AFL_LINK_ASAN.c = AFL_USE_ASAN=1 $(AFL_CC) -m32 $(LDFLAGS) $(CFLAGS) $(CPPFLAGS)
+AFL_LINK_ASAN.cc = AFL_USE_ASAN=1 $(AFL_CXX) -m32 $(LDFLAGS) $(CXXFLAGS) $(CPPFLAGS)
+AFL_MSAN.c = AFL_USE_MSAN=1 $(AFL_CC) $(CFLAGS) $(CPPFLAGS) -c
+AFL_MSAN.cc = AFL_USE_MSAN=1 $(AFL_CXX) $(CXXFLAGS) $(CPPFLAGS) -c
+AFL_LINK_MSAN.c = AFL_USE_MSAN=1 $(AFL_CC) $(LDFLAGS) $(CFLAGS) $(CPPFLAGS)
+AFL_LINK_MSAN.cc = AFL_USE_MSAN=1 $(AFL_CXX) $(LDFLAGS) $(CXXFLAGS) $(CPPFLAGS)
 
 # generate .d files when compiling
 CPPFLAGS += -MMD
@@ -130,12 +143,23 @@ $(DEBUG_TARGET): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS)
 $(TEST_BINARIES): CPPFLAGS += -Itests/include
 $(TEST_BINARIES): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS) -L$(BUILD_DIR)
 
-$(FUZZER_OBJECTS): CFLAGS += $(FUZZER_OPTIMIZE_FLAGS)
-$(FUZZER_OBJECTS): CXXFLAGS += $(FUZZER_OPTIMIZE_FLAGS)
-$(FUZZER_BINARIES): CPPFLAGS += -Ifuzzers/include
-$(FUZZER_BINARIES): LDFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -L$(BUILD_DIR)
-$(FUZZER_DEBUG_BINARIES): CPPFLAGS += -Ifuzzers/include
-$(FUZZER_DEBUG_BINARIES): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS)
+$(FUZZER_OBJECTS): CFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -D OLM_FUZZING=1
+$(FUZZER_OBJECTS): CXXFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -D OLM_FUZZING=1
+$(FUZZER_DEBUG_OBJECTS): CFLAGS += $(DEBUG_OPTIMIZE_FLAGS) $(CFLAGS_NATIVE) -D OLM_FUZZING=1
+$(FUZZER_DEBUG_OBJECTS): CXXFLAGS += $(DEBUG_OPTIMIZE_FLAGS) $(CXXFLAGS_NATIVE) -D OLM_FUZZING=1
+$(FUZZER_ASAN_OBJECTS): CFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -D OLM_FUZZING=1
+$(FUZZER_ASAN_OBJECTS): CXXFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -D OLM_FUZZING=1
+$(FUZZER_MSAN_OBJECTS): CFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -D OLM_FUZZING=1
+$(FUZZER_MSAN_OBJECTS): CXXFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -D OLM_FUZZING=1
+
+$(FUZZER_BINARIES): CPPFLAGS += -Ifuzzing/fuzzers/include
+$(FUZZER_BINARIES): LDFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -L$(BUILD_DIR) -lstdc++
+$(FUZZER_ASAN_BINARIES): CPPFLAGS += -Ifuzzing/fuzzers/include
+$(FUZZER_ASAN_BINARIES): LDFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -L$(BUILD_DIR) -lstdc++
+$(FUZZER_MSAN_BINARIES): CPPFLAGS += -Ifuzzing/fuzzers/include
+$(FUZZER_MSAN_BINARIES): LDFLAGS += $(FUZZER_OPTIMIZE_FLAGS) -L$(BUILD_DIR) -lstdc++
+$(FUZZER_DEBUG_BINARIES): CPPFLAGS += -Ifuzzing/fuzzers/include
+$(FUZZER_DEBUG_BINARIES): LDFLAGS += $(DEBUG_OPTIMIZE_FLAGS) -lstdc++
 
 $(JS_OBJECTS): CFLAGS += $(JS_OPTIMIZE_FLAGS)
 $(JS_OBJECTS): CXXFLAGS += $(JS_OPTIMIZE_FLAGS)
@@ -161,6 +185,12 @@ lib: $(RELEASE_TARGET)
 .PHONY: lib
 
 $(RELEASE_TARGET): $(RELEASE_OBJECTS)
+	@echo
+	@echo '****************************************************************************'
+	@echo '* WARNING: Building olm with make is deprecated. Please use cmake instead. *'
+	@echo '****************************************************************************'
+	@echo
+
 	$(CXX) $(LDFLAGS) --shared -fPIC \
             $(OLM_LDFLAGS) \
             $(OUTPUT_OPTION) $(RELEASE_OBJECTS)
@@ -191,32 +221,32 @@ wasm: $(WASM_TARGET)
 $(WASM_TARGET): $(WASM_OBJECTS)
 	$(EMAR) rcs $@ $^
 
-javascript/olm_prefix.js: javascript/olm_prefix.js.in Makefile
+javascript/olm_prefix.js: javascript/olm_prefix.js.in Makefile common.mk
 	sed s/@VERSION@/$(VERSION)/ javascript/olm_prefix.js.in > $@
 
 # Note that the output file we give to emcc determines the name of the
 # wasm file baked into the js, hence messing around outputting to olm.js
 # and then renaming it.
 $(JS_WASM_TARGET): $(JS_OBJECTS) $(JS_PRE) $(JS_POST) $(JS_EXPORTED_FUNCTIONS) $(JS_PREFIX) $(JS_SUFFIX)
-	EMCC_CLOSURE_ARGS="--externs $(JS_EXTERNS)" $(EMCC_LINK) \
+	EMCC_CLOSURE_ARGS="--externs $(CURDIR)/$(JS_EXTERNS)" $(EMCC_LINK) \
 	       $(EMCCFLAGS_WASM) \
                $(foreach f,$(JS_PRE),--pre-js $(f)) \
                $(foreach f,$(JS_POST),--post-js $(f)) \
                $(foreach f,$(JS_PREFIX),--extern-pre-js $(f)) \
                $(foreach f,$(JS_SUFFIX),--extern-post-js $(f)) \
                -s "EXPORTED_FUNCTIONS=@$(JS_EXPORTED_FUNCTIONS)" \
-               -s "EXTRA_EXPORTED_RUNTIME_METHODS=$(JS_EXTRA_EXPORTED_RUNTIME_METHODS)" \
+               -s "EXPORTED_RUNTIME_METHODS=$(JS_EXPORTED_RUNTIME_METHODS)" \
                -o $@ $(JS_OBJECTS)
 
 $(JS_ASMJS_TARGET): $(JS_OBJECTS) $(JS_PRE) $(JS_POST) $(JS_EXPORTED_FUNCTIONS) $(JS_PREFIX) $(JS_SUFFIX)
-	EMCC_CLOSURE_ARGS="--externs $(JS_EXTERNS)" $(EMCC_LINK) \
+	EMCC_CLOSURE_ARGS="--externs $(CURDIR)/$(JS_EXTERNS)" $(EMCC_LINK) \
 	       $(EMCCFLAGS_ASMJS) \
                $(foreach f,$(JS_PRE),--pre-js $(f)) \
                $(foreach f,$(JS_POST),--post-js $(f)) \
                $(foreach f,$(JS_PREFIX),--extern-pre-js $(f)) \
                $(foreach f,$(JS_SUFFIX),--extern-post-js $(f)) \
                -s "EXPORTED_FUNCTIONS=@$(JS_EXPORTED_FUNCTIONS)" \
-               -s "EXTRA_EXPORTED_RUNTIME_METHODS=$(JS_EXTRA_EXPORTED_RUNTIME_METHODS)" \
+               -s "EXPORTED_RUNTIME_METHODS=$(JS_EXPORTED_RUNTIME_METHODS)" \
                -o $@ $(JS_OBJECTS)
 
 build_tests: $(TEST_BINARIES)
@@ -233,7 +263,7 @@ test_mem: build_tests
 	    valgrind -q --leak-check=yes --exit-on-first-error=yes --error-exitcode=1 $$i || exit $$?; \
 	done
 
-fuzzers: $(FUZZER_BINARIES) $(FUZZER_DEBUG_BINARIES)
+fuzzers: $(FUZZER_BINARIES) $(FUZZER_ASAN_BINARIES) $(FUZZER_MSAN_BINARIES) $(FUZZER_DEBUG_BINARIES)
 .PHONY: fuzzers
 
 $(JS_EXPORTED_FUNCTIONS): $(PUBLIC_HEADERS)
@@ -318,21 +348,61 @@ $(BUILD_DIR)/fuzzers/objects/%.o: %.cpp
 	$(call mkdir,$(dir $@))
 	$(AFL.cc) $(OUTPUT_OPTION) $<
 
-$(BUILD_DIR)/fuzzers/fuzz_%: fuzzers/fuzz_%.c $(FUZZER_OBJECTS)
+$(BUILD_DIR)/fuzzers/objects/asan_%.o: %.c
+	$(call mkdir,$(dir $@))
+	$(AFL_ASAN.c) $(OUTPUT_OPTION) $<
+
+$(BUILD_DIR)/fuzzers/objects/asan_%.o: %.cpp
+	$(call mkdir,$(dir $@))
+	$(AFL_ASAN.cc) $(OUTPUT_OPTION) $<
+
+$(BUILD_DIR)/fuzzers/objects/msan_%.o: %.c
+	$(call mkdir,$(dir $@))
+	$(AFL_MSAN.c) $(OUTPUT_OPTION) $<
+
+$(BUILD_DIR)/fuzzers/objects/msan_%.o: %.cpp
+	$(call mkdir,$(dir $@))
+	$(AFL_MSAN.cc) $(OUTPUT_OPTION) $<
+
+$(BUILD_DIR)/fuzzers/objects/debug_%.o: %.c
+	$(call mkdir,$(dir $@))
+	$(COMPILE.c) $(OUTPUT_OPTION) $<
+
+$(BUILD_DIR)/fuzzers/objects/debug_%.o: %.cpp
+	$(call mkdir,$(dir $@))
+	$(COMPILE.cc) $(OUTPUT_OPTION) $<
+
+
+$(BUILD_DIR)/fuzzers/fuzz_%: fuzzing/fuzzers/fuzz_%.c $(FUZZER_OBJECTS)
 	$(AFL_LINK.c) -o $@ $< $(FUZZER_OBJECTS) $(LOADLIBES) $(LDLIBS)
 
-$(BUILD_DIR)/fuzzers/fuzz_%: fuzzers/fuzz_%.cpp $(FUZZER_OBJECTS)
+$(BUILD_DIR)/fuzzers/fuzz_%: fuzzing/fuzzers/fuzz_%.cpp $(FUZZER_OBJECTS)
 	$(AFL_LINK.cc) -o $@ $< $(FUZZER_OBJECTS) $(LOADLIBES) $(LDLIBS)
 
-$(BUILD_DIR)/fuzzers/debug_%: fuzzers/fuzz_%.c $(DEBUG_OBJECTS)
-	$(LINK.c) -o $@ $< $(DEBUG_OBJECTS) $(LOADLIBES) $(LDLIBS)
+$(BUILD_DIR)/fuzzers/debug_%: fuzzing/fuzzers/fuzz_%.c $(FUZZER_DEBUG_OBJECTS)
+	$(LINK.c) -o $@ $< $(FUZZER_DEBUG_OBJECTS) $(LOADLIBES) $(LDLIBS)
 
-$(BUILD_DIR)/fuzzers/debug_%: fuzzers/fuzz_%.cpp $(DEBUG_OBJECTS)
-	$(LINK.cc) -o $@ $< $(DEBUG_OBJECTS) $(LOADLIBES) $(LDLIBS)
+$(BUILD_DIR)/fuzzers/debug_%: fuzzing/fuzzers/fuzz_%.cpp $(FUZZER_DEBUG_OBJECTS)
+	$(LINK.cc) -o $@ $< $(FUZZER_DEBUG_OBJECTS) $(LOADLIBES) $(LDLIBS)
+
+$(BUILD_DIR)/fuzzers/fuzz_%_asan: fuzzing/fuzzers/fuzz_%.c $(FUZZER_ASAN_OBJECTS)
+	$(AFL_LINK_ASAN.c) -o $@ $< $(FUZZER_ASAN_OBJECTS) $(LOADLIBES) $(LDLIBS)
+
+$(BUILD_DIR)/fuzzers/fuzz_%_asan: fuzzing/fuzzers/fuzz_%.cpp $(FUZZER_ASAN_OBJECTS)
+	$(AFL_LINK_ASAN.cc) -o $@ $< $(FUZZER_ASAN_OBJECTS) $(LOADLIBES) $(LDLIBS)
+
+$(BUILD_DIR)/fuzzers/fuzz_%_msan: fuzzing/fuzzers/fuzz_%.c $(FUZZER_MSAN_OBJECTS)
+	$(AFL_LINK_MSAN.c) -o $@ $< $(FUZZER_MSAN_OBJECTS) $(LOADLIBES) $(LDLIBS)
+
+$(BUILD_DIR)/fuzzers/fuzz_%_msan: fuzzing/fuzzers/fuzz_%.cpp $(FUZZER_MSAN_OBJECTS)
+	$(AFL_LINK_MSAN.cc) -o $@ $< $(FUZZER_MSAN_OBJECTS) $(LOADLIBES) $(LDLIBS)
 
 %.html: %.rst
 	rst2html $< $@
 
+%.html: %.md
+	pandoc --from markdown --to html5 --standalone --lua-filter gitlab-math.lua --katex -o $@ $<
+
 ### dependencies
 
 -include $(RELEASE_OBJECTS:.o=.d)
@@ -340,5 +410,10 @@ $(BUILD_DIR)/fuzzers/debug_%: fuzzers/fuzz_%.cpp $(DEBUG_OBJECTS)
 -include $(JS_OBJECTS:.o=.d)
 -include $(TEST_BINARIES:=.d)
 -include $(FUZZER_OBJECTS:.o=.d)
+-include $(FUZZER_DEBUG_OBJECTS:.o=.d)
+-include $(FUZZER_ASAN_OBJECTS:.o=.d)
+-include $(FUZZER_MSAN_OBJECTS:.o=.d)
 -include $(FUZZER_BINARIES:=.d)
+-include $(FUZZER_ASAN_BINARIES:=.d)
+-include $(FUZZER_MSAN_BINARIES:=.d)
 -include $(FUZZER_DEBUG_BINARIES:=.d)

OLMKit.podspec

@@ -3,7 +3,7 @@ Pod::Spec.new do |s|
   # The libolm version
   MAJOR = 3
   MINOR = 2
-  PATCH = 2
+  PATCH = 16
 
   s.name         = "OLMKit"
   s.version      = "#{MAJOR}.#{MINOR}.#{PATCH}"

Package.swift

@@ -2,7 +2,7 @@
 
 import PackageDescription
 
-let major = 3, minor = 2, patch = 2
+let major = 3, minor = 2, patch = 16
 
 let package = Package(
     name: "Olm",

README.md

@@ -9,85 +9,92 @@ The specification of the Olm ratchet can be found in [docs/olm.md](docs/olm.md).
 This library also includes an implementation of the Megolm cryptographic
 ratchet, as specified in [docs/megolm.md](docs/megolm.md).
 
+## Installing
+
+### Linux and other Unix-like systems
+
+Your distribution may have pre-compiled packages available.  If not, or if you
+need a newer version, you will need to compile from source.  See the "Building"
+section below for more details.
+
+### macOS
+
+The easiest way to install on macOS is via Homebrew.  If you do not have
+Homebrew installed, follow the instructions at https://brew.sh/ to install it.
+
+You can then install libolm by running
+
+```bash
+brew install libolm
+```
+
+If you also need the Python packages, you can run
+
+```bash
+pip3 install python-olm --global-option="build_ext" --global-option="--include-dirs="`brew --prefix libolm`"/include" --global-option="--library-dirs="`brew --prefix libolm`"/lib"
+```
+
+Note that this will install an older version of the Python bindings, which may
+be missing some functions.  If you need the latest version, you will need to
+build from source.
+
+### Windows
+
+You will need to build from source.  See the "Building" section below for more
+details.
+
+### Bindings
+
+#### JavaScript
+
+You can use pre-built npm packages, available at
+<https://gitlab.matrix.org/matrix-org/olm/-/packages?type=npm>.
+
+#### Python
+
+A Python source package and pre-built packages for certain architectures from
+<https://pypi.org/project/python-olm/>.  If a pre-built package is not
+available for your architecture, you will need:
+
+- cmake (recommended) or GNU make
+- a C/C++ compiler
+
+to build the source package.
+
+You can then run `pip install python-olm`.
+
+Currently, we try to provide packages for all supported versions of Python on
+x86-64, i686, and aarch64, but we cannot guarantee that packages for all
+versions will be available on all architectures.
+
+#### Android
+
+Pre-built Android bindings are available at
+<https://gitlab.matrix.org/matrix-org/olm/-/packages?type=Maven>.
+
 ## Building
 
-To build olm as a shared library run either:
+To build olm as a shared library run:
 
 ```bash
 cmake . -Bbuild
 cmake --build build
 ```
 
-or:
-
-```bash
-make
-```
-
-Using cmake is the preferred method for building the shared library; the
-Makefile may be removed in the future.
-
-To run the tests when using cmake, run:
+To run the tests, run:
 
 ```bash
 cd build/tests
 ctest .
 ```
-To run the tests when using make, run:
 
-```bash
-make test
-```
-
-To build the JavaScript bindings, install emscripten from http://kripken.github.io/emscripten-site/ and then run:
-
-```bash
-make js
-```
-
-Note that if you run emscripten in a docker container, you need to pass through
-the EMCC_CLOSURE_ARGS environment variable.
-
-To build the android project for Android bindings, run:
-
-```bash
-cd android
-./gradlew clean assembleRelease
-```
-
-To build the Xcode workspace for Objective-C bindings, run:
-
-```bash
-cd xcode
-pod install
-open OLMKit.xcworkspace
-```
-
-To build the Python bindings, first build olm as a shared library as above, and
-then run:
-
-```bash
-cd python
-make
-```
-
-to make both the Python 2 and Python 3 bindings.  To make only one version, use
-``make olm-python2`` or ``make olm-python3`` instead of just ``make``.
-
-To build olm as a static library (which still needs libstdc++ dynamically) run
-either:
+To build olm as a static library (which still needs libstdc++ dynamically) run:
 
 ```bash
 cmake . -Bbuild -DBUILD_SHARED_LIBS=NO
 cmake --build build
 ```
 
-or
-
-```bash
-make static
-```
-
 The library can also be used as a dependency with CMake using:
 
 ```cmake
@@ -95,6 +102,83 @@ find_package(Olm::Olm REQUIRED)
 target_link_libraries(my_exe Olm::Olm)
 ```
 
+### Bindings
+
+#### JavaScript
+
+The recommended way to build the JavaScript bindings is using
+[Nix](https://nixos.org/).  With Nix, you can run
+
+```bash
+nix build .\#javascript
+```
+
+to build the bindings.
+
+If you do not have Nix you can, install emscripten from https://emscripten.org/
+and then run:
+
+```bash
+make js
+```
+
+Emscripten can also be run via Docker, in which case, you need to pass through
+the EMCC_CLOSURE_ARGS environment variable.
+
+#### Android
+
+To build the android project for Android bindings, run:
+
+```bash
+cd android
+./gradlew clean build
+```
+
+#### Objective-C
+
+To build the Xcode workspace for Objective-C bindings, run:
+
+```bash
+cd xcode
+pod install
+open OLMKit.xcworkspace
+```
+
+#### Python
+
+To build the Python 3 bindings, first build olm as a library as above, and
+then run:
+
+```bash
+cd python
+make
+```
+
+### Using make instead of cmake
+
+**WARNING:** Using cmake is the preferred method for building the olm library;
+the Makefile may be removed in the future or have functionality removed.  In
+addition, the Makefile may make certain assumptions about your system and is
+not as well tested.
+
+To build olm as a dynamic library, run:
+
+```bash
+make
+```
+
+To run the tests, run:
+
+```bash
+make test
+```
+
+To build olm as a static library, run:
+
+```bash
+make static
+```
+
 ## Bindings
 
 libolm can be used in different environments using bindings. In addition to the
@@ -102,16 +186,19 @@ JavaScript, Python, Java (Android), and Objective-C bindings included in this
 repository, some bindings are (in alphabetical order):
 
 - [cl-megolm](https://github.com/K1D77A/cl-megolm) (MIT) Common Lisp bindings
-- [dart-olm](https://gitlab.com/famedly/libraries/dart-olm) (AGPLv3) Dart bindings
+- [dart-olm](https://gitlab.com/famedly/company/frontend/libraries/dart-olm) (AGPLv3) Dart bindings
 - [Dhole/go-olm](https://github.com/Dhole/go-olm) (Apache-2.0) Go bindings
+- [jOlm](https://github.com/brevilo/jolm) (Apache-2.0) Java bindings
 - [libQtOlm](https://gitlab.com/b0/libqtolm/) (GPLv3) Qt bindings
 - [matrix-kt](https://github.com/Dominaezzz/matrix-kt) (Apache-2.0) Kotlin
   library for Matrix, including Olm methods
 - [maunium.net/go/mautrix/crypto/olm](https://github.com/tulir/mautrix-go/tree/master/crypto/olm)
   (Apache-2.0) fork of Dhole/go-olm
-- [nim-olm](https://gitea.com/BarrOff/nim-olm) (MIT) Nim bindings
+- [nim-olm](https://codeberg.org/BarrOff/nim-olm) (MIT) Nim bindings
 - [olm-sys](https://gitlab.gnome.org/BrainBlasted/olm-sys) (Apache-2.0) Rust
   bindings
+- [Trixnity](https://gitlab.com/trixnity/trixnity) (Apache-2.0) Kotlin SDK for
+  Matrix, including Olm bindings
 
 Note that bindings may have a different license from libolm, and are *not*
 endorsed by the Matrix.org Foundation C.I.C.
@@ -119,8 +206,8 @@ endorsed by the Matrix.org Foundation C.I.C.
 ## Release process
 
 First: bump version numbers in ``common.mk``, ``CMakeLists.txt``,
-``javascript/package.json``, ``python/olm/__version__.py``, ``OLMKit.podspec``, ``Package.swift``,
-and ``android/olm-sdk/java/org/matrix/olm/OlmManager.java`` in function ``getVersion()```.
+``javascript/package.json``, ``python/pyproject.toml``, ``OLMKit.podspec``,
+``Package.swift``, and ``android/gradle.properties``.
 
 Also, ensure the changelog is up to date, and that everything is committed to
 git.
@@ -160,6 +247,14 @@ Python and JavaScript packages are published to the registry at
 documentation contains instructions on how to set up twine (Python) and npm
 (JavaScript) to upload to the registry.
 
+To publish the Android library to MavenCentral (you will need some secrets), in the /android folder:
+ - Run the command `./gradlew clean build publish --no-daemon --no-parallel --stacktrace`. The generated AAR must be approx 500 kb.
+ - Connect to https://s01.oss.sonatype.org
+ - Click on Staging Repositories and check the the files have been uploaded
+ - Click on close
+ - Wait (check Activity tab until step "Repository closed" is displayed)
+ - Click on release. The staging repository will disappear
+ - Check that the release is available in https://repo1.maven.org/maven2/org/matrix/android/olm-sdk/ (it can take a few minutes)
 
 ## Design
 
@@ -212,9 +307,13 @@ about it at
 https://www.nccgroup.com/globalassets/our-research/us/public-reports/2016/november/ncc_group_olm_cryptogrpahic_review_2016_11_01.pdf
 and https://matrix.org/blog/2016/11/21/matrixs-olm-end-to-end-encryption-security-assessment-released-and-implemented-cross-platform-on-riot-at-last/
 
+## Security issues
+
+If you think you found a security issue in libolm, any of its bindings or the Olm/Megolm protocols, please follow our [Security Disclosure Policy](https://matrix.org/security-disclosure-policy/) to report.
+
 ## Bug reports
 
-Please file bug reports at https://github.com/matrix-org/olm/issues
+For non-sensitive bugs, please file bug reports at https://github.com/matrix-org/olm/issues.
 
 ## What's an olm?
 

Windows64.cmake

@@ -0,0 +1,29 @@
+# Cross-compile for Windows (64-bit) using Mingw-w64
+
+# Build using:
+#   cmake . -Bbuild -DCMAKE_TOOLCHAIN_FILE=Windows64.cmake
+#   cmake --build build
+
+# from @ticho:cyberdi.sk
+# https://paste.debian.net/1201338/
+
+# the name of the target operating system
+SET(CMAKE_SYSTEM_NAME Windows)
+
+# which compilers to use for C and C++
+SET(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc-posix)
+SET(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++-posix)
+SET(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+
+# here is the target environment located
+SET(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
+
+# adjust the default behaviour of the FIND_XXX() commands:
+# search headers and libraries in the target environment, search
+# programs in the host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+
+# static-link against the standard libraries
+set(CMAKE_CXX_STANDARD_LIBRARIES "-static-libgcc -static-libstdc++")

android/.gitlab-ci.yml

@@ -0,0 +1,46 @@
+# TODO: consider replacing this with a smaller image
+image: docker.io/inovex/gitlab-ci-android
+
+stages:
+  - build
+  - test
+
+variables:
+  GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+
+before_script:
+  - export GRADLE_USER_HOME=$(pwd)/.gradle
+  - export ANDROID_HOME=${ANDROID_SDK_HOME}
+  - echo "sdk.dir=${ANDROID_SDK_HOME}" > ./android/local.properties
+  - echo "ndk.dir=${ANDROID_NDK_HOME}" >> ./android/local.properties
+  - cp -R $ANDROID_SDK_ROOT/licenses ./android/.
+  - chmod +x ./android/gradlew
+
+cache:
+  key: ${CI_PROJECT_ID}
+  paths:
+    - android/.gradle/
+
+build:android:aar:
+  stage: build
+  tags:
+    - docker
+  script:
+    - pushd android
+    - ./gradlew clean assembleRelease
+  artifacts:
+    expire_in: 1 weeks
+    paths:
+      - android/olm-sdk/build/outputs/aar/*.aar
+      - android/local.properties
+
+test:android:aar:
+  stage: test
+  tags:
+    - docker
+  script:
+    - pushd android
+    - ./gradlew assembleAndroidTest
+    # TODO: Add emulator to run tests
+  needs:
+    - build:android:aar

android/README.rst

@@ -5,20 +5,16 @@ OlmLibSdk exposes an android wrapper to libolm.
 
 Installation
 ------------
-Create a libs directory in your project directory
-Copy the olm-sdk.aar into it.
 
-In your build.gradle file, add in the android section::
+Android Olm library is released on MavenCentral.
 
-    repositories {
-        flatDir {
-            dir 'libs'
-        }
-    }
+Add this dependency to your project:
 
-Add in the dependencies category::
+```groovy
+implementation "org.matrix.android:olm:3.2.8"
+```
 
-    compile(name: 'olm-sdk', ext: 'aar')
+Latest version: ![Latest version](https://img.shields.io/maven-central/v/org.matrix.android/olm)
 
 Development
 -----------

android/build.gradle

@@ -6,8 +6,10 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.3'
-
+        // Release notes of Android Gradle Plugin (AGP):
+        // https://developer.android.com/studio/releases/gradle-plugin
+        classpath 'com.android.tools.build:gradle:7.0.4'
+        classpath 'com.vanniktech:gradle-maven-publish-plugin:0.18.0'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
@@ -18,6 +20,17 @@ allprojects {
         mavenCentral()
         google()
     }
+
+    plugins.withId("com.vanniktech.maven.publish.base") {
+       group = project.getProperties().getOrDefault("GROUP", "0.0.0")
+       version = project.getProperties().getOrDefault("VERSION_NAME", "name")
+
+        mavenPublishing {
+            publishToMavenCentral("S01")
+            pomFromGradleProperties()
+            signAllPublications()
+        }
+    }
 }
 
 task clean(type: Delete) {

android/gradle.properties

@@ -21,3 +21,29 @@
 
 android.useAndroidX=true
 org.gradle.configureondemand=false
+
+# Maven publication
+# Ref: https://github.com/vanniktech/gradle-maven-publish-plugin
+GROUP=org.matrix.android
+POM_ARTIFACT_ID=olm
+VERSION_NAME=3.2.16
+
+POM_PACKAGING=aar
+
+POM_NAME=Olm Android wrapper
+POM_DESCRIPTION=An Android wrapper to libolm.
+POM_INCEPTION_YEAR=2021
+POM_URL=https://gitlab.matrix.org/matrix-org/olm
+
+POM_LICENSE_NAME=The Apache Software License, Version 2.0
+POM_LICENCE_URL=https://www.apache.org/licenses/LICENSE-2.0.txt
+POM_LICENCE_DIST=repo
+
+POM_SCM_URL=https://gitlab.matrix.org/matrix-org/olm
+POM_SCM_CONNECTION=scm:git:https://gitlab.matrix.org/matrix-org/olm.git
+POM_SCM_DEV_CONNECTION=scm:git:ssh://git@gitlab.int.matrix.org:matrix-org/olm.git
+
+POM_DEVELOPER_ID=matrixdev
+POM_DEVELOPER_NAME=matrixdev
+POM_DEVELOPER_URL=https://gitlab.matrix.org/matrix-org
+POM_DEVELOPER_EMAIL=android@element.io

android/gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,6 @@
-#Thu Oct 13 09:38:01 CEST 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0-all.zip
-distributionSha256Sum=81003f83b0056d20eedf48cddd4f52a9813163d4ba185bcf8abd34b8eeea4cbd
+distributionSha256Sum=c9490e938b221daf0094982288e4038deed954a3f12fb54cbf270ddf4e37d879
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

android/olm-sdk/build.gradle

@@ -1,19 +1,26 @@
 import org.apache.tools.ant.taskdefs.condition.Os
+import com.vanniktech.maven.publish.AndroidLibrary
+import com.vanniktech.maven.publish.JavadocJar
 
 apply plugin: 'com.android.library'
+apply plugin: "com.vanniktech.maven.publish.base"
 
 android {
-    compileSdkVersion 30
+    compileSdk 31
 
     defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 30
+        minSdk 14
+        targetSdk 31
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
+        buildConfigField "String", "OLM_VERSION", "\"${project.getProperties().getOrDefault("VERSION_NAME", "0.0.0")}\""
+
         // The following argument makes the Android Test Orchestrator run its
         // "pm clear" command after each test invocation. This command ensures
         // that the app's state is completely cleared between tests.
         testInstrumentationRunnerArguments clearPackageData: 'true'
+
+        buildConfigField "String", "OLM_VERSION", "\"${project.getProperties().getOrDefault("VERSION_NAME", "0.0.0")}\""
     }
     buildTypes {
         debug {
@@ -73,6 +80,27 @@ android {
             compileTask.dependsOn buildJavaDoc
     }
 
+    task androidJavadocs(type: Javadoc) {
+        source = android.sourceSets.main.java.srcDirs
+        classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+        android.libraryVariants.all { variant ->
+            if (variant.name == 'release') {
+                owner.classpath += variant.javaCompileProvider.get().classpath
+            }
+        }
+        exclude '**/R.html', '**/R.*.html', '**/index.html'
+    }
+
+    task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
+        archiveClassifier.set('javadoc')
+        from androidJavadocs.destinationDir
+    }
+
+    task androidSourcesJar(type: Jar) {
+        archiveClassifier.set('sources')
+        from android.sourceSets.main.java.srcDirs
+    }
+
     clean.dependsOn cleanNative
 
 
@@ -84,6 +112,11 @@ android {
             }
         }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_11
+        targetCompatibility JavaVersion.VERSION_11
+    }
 }
 
 def getNdkFolder() {
@@ -123,8 +156,12 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'junit:junit:4.13.2'
 
-    androidTestImplementation 'androidx.test:core:1.3.0'
-    androidTestImplementation 'androidx.test:runner:1.3.0'
-    androidTestImplementation 'androidx.test:rules:1.3.0'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test:core:1.4.0'
+    androidTestImplementation 'androidx.test:runner:1.4.0'
+    androidTestImplementation 'androidx.test:rules:1.4.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+}
+
+mavenPublishing {
+    configure(new AndroidLibrary(new JavadocJar.Empty(), false))
 }

android/olm-sdk/src/androidTest/java/org/matrix/olm/OlmAccountTest.java

@@ -488,4 +488,19 @@ public class OlmAccountTest {
             fail(e.getMessage());
         }
     }
+
+    @Test
+    public void test18GenerateFallbackKey() {
+        try {
+            OlmAccount account1 = new OlmAccount();
+            account1.generateFallbackKey();
+            Map<String, Map<String, String>> fallbackKeyMap = account1.fallbackKey();
+
+            assertNotNull(fallbackKeyMap);
+
+            assertEquals(1, fallbackKeyMap.size());
+        } catch (OlmException e) {
+            fail(e.getMessage());
+        }
+    }
 }

android/olm-sdk/src/androidTest/java/org/matrix/olm/OlmSessionTest.java

@@ -1011,4 +1011,75 @@ public class OlmSessionTest {
         assertTrue(bobSession.isReleased());
     }
 
+    @Test
+    public void test07AliceBobSessionDescribe() {
+        // creates alice & bob accounts
+        OlmAccount aliceAccount = null;
+        OlmAccount bobAccount = null;
+        try {
+            aliceAccount = new OlmAccount();
+            bobAccount = new OlmAccount();
+        } catch (OlmException e) {
+            fail(e.getMessage());
+        }
+
+        // test accounts creation
+        assertTrue(0 != bobAccount.getOlmAccountId());
+        assertTrue(0 != aliceAccount.getOlmAccountId());
+
+        // CREATE ALICE SESSION
+
+        OlmSession aliceSession = null;
+        try {
+            aliceSession = new OlmSession();
+        } catch (OlmException e) {
+            fail("Exception Msg=" + e.getMessage());
+        }
+        assertTrue(0 != aliceSession.getOlmSessionId());
+
+        // CREATE ALICE SESSION
+        OlmSession bobSession = null;
+        try {
+            bobSession = new OlmSession();
+        } catch (OlmException e) {
+            e.printStackTrace();
+            fail(e.getMessage());
+        }
+        assertTrue(0 != bobSession.getOlmSessionId());
+
+        String aliceSessionDescribe = null;
+        try {
+            aliceSessionDescribe = aliceSession.sessionDescribe();
+        } catch (Exception e) {
+            fail(e.getMessage());
+        }
+
+        assertNotNull(aliceSessionDescribe);
+
+        String bobSessionDescribe = null;
+        try {
+            bobSessionDescribe = bobSession.sessionDescribe();
+        } catch (Exception e) {
+            fail(e.getMessage());
+        }
+        assertNotNull(bobSessionDescribe);
+
+        // must be the same for both ends of the conversation
+        assertEquals(aliceSessionDescribe, bobSessionDescribe);
+
+        assertEquals(
+            "sender chain index: 0 receiver chain indices: skipped message keys:",
+            aliceSessionDescribe
+        );
+
+        aliceAccount.releaseAccount();
+        bobAccount.releaseAccount();
+        assertTrue(aliceAccount.isReleased());
+        assertTrue(bobAccount.isReleased());
+
+        bobSession.releaseSession();
+        aliceSession.releaseSession();
+        assertTrue(bobSession.isReleased());
+        assertTrue(aliceSession.isReleased());
+    }
 }

android/olm-sdk/src/main/java/org/matrix/olm/OlmAccount.java

@@ -114,11 +114,11 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
     /**
      * Return the identity keys (identity and fingerprint keys) in a dictionary.<br>
      * Public API for {@link #identityKeysJni()}.<br>
-     * Ex:<tt>
+     * Ex:<code>
      * {
      *  "curve25519":"Vam++zZPMqDQM6ANKpO/uAl5ViJSHxV9hd+b0/fwRAg",
      *  "ed25519":"+v8SOlOASFTMrX3MCKBM4iVnYoZ+JIjpNt1fi8Z9O2I"
-     * }</tt>
+     * }</code>
      * @return identity keys dictionary if operation succeeds, null otherwise
      * @exception OlmException the failure reason
      */
@@ -195,14 +195,14 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
     /**
      * Return the "one time keys" in a dictionary.<br>
      * The number of "one time keys", is specified by {@link #generateOneTimeKeys(int)}<br>
-     * Ex:<tt>
+     * Ex:<code>
      * { "curve25519":
      *  {
      *      "AAAABQ":"qefVZd8qvjOpsFzoKSAdfUnJVkIreyxWFlipCHjSQQg",
      *      "AAAABA":"/X8szMU+p+lsTnr56wKjaLgjTMQQkCk8EIWEAilZtQ8",
      *      "AAAAAw":"qxNxxFHzevFntaaPdT0fhhO7tc7pco4+xB/5VRG81hA",
      *  }
-     * }</tt><br>
+     * }</code><br>
      * Public API for {@link #oneTimeKeysJni()}.<br>
      * Note: these keys are to be published on the server.
      * @return one time keys in string dictionary.
@@ -234,7 +234,7 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
     /**
      * Get the public parts of the unpublished "one time keys" for the account.<br>
      * The returned data is a JSON-formatted object with the single property
-     * <tt>curve25519</tt>, which is itself an object mapping key id to
+     * <code>curve25519</code>, which is itself an object mapping key id to
      * base64-encoded Curve25519 key.<br>
      * @return byte array containing the one time keys or throw an exception if it fails
      */
@@ -417,4 +417,99 @@ public class OlmAccount extends CommonSerializeUtils implements Serializable {
      * @return the deserialized account
      **/
     private native long deserializeJni(byte[] aSerializedDataBuffer, byte[] aKeyBuffer);
+
+    /**
+     * Return a pickled account as a bytes buffer.<br>
+     * The account is serialized and encrypted with aKey.
+     * In case of failure, an error human readable
+     * description is provide in aErrorMsg.
+     * @param aKey encryption key
+     * @param aErrorMsg error message description
+     * @return the pickled account as bytes buffer
+     */
+    public byte[] pickle(byte[] aKey, StringBuffer aErrorMsg) {
+        return serialize(aKey, aErrorMsg);
+    }
+
+    /**
+     * Loads an account from a pickled bytes buffer.<br>
+     * See {@link #serialize(byte[], StringBuffer)}
+     * @param aSerializedData bytes buffer
+     * @param aKey key used to encrypted
+     * @exception Exception the exception
+     */
+    public void unpickle(byte[] aSerializedData, byte[] aKey) throws Exception {
+        deserialize(aSerializedData, aKey);
+    }
+
+    /**
+     * Generates a new fallback key.
+     * @throws OlmException exception with a reason.
+     */
+    public void generateFallbackKey() throws OlmException {
+        try {
+            generateFallbackKeyJni();
+        } catch (Exception e) {
+            throw new OlmException(OlmException.EXCEPTION_CODE_ACCOUNT_GENERATE_FALLBACK_KEY, e.getMessage());
+        }
+    }
+
+    private native void generateFallbackKeyJni();
+
+    /**
+     * Return the "fallback key" in a dictionary.<br>
+     * Ex:<code>
+     * { "curve25519":
+     *  {
+     *      "AAAABQ":"qefVZd8qvjOpsFzoKSAdfUnJVkIreyxWFlipCHjSQQg"
+     *  }
+     * }</code><br>
+     * Public API for {@link #fallbackKeyJni()}.<br>
+     * Note: the key is to be published on the server.
+     * @return fallback key in string dictionary.
+     * @exception OlmException the failure reason
+     */
+    public Map<String, Map<String, String>> fallbackKey() throws OlmException {
+        JSONObject fallbackKeyJsonObj = null;
+        byte[] fallbackKeyBuffer;
+
+        try {
+            fallbackKeyBuffer = fallbackKeyJni();
+        } catch (Exception e) {
+            throw new OlmException(OlmException.EXCEPTION_CODE_ACCOUNT_FALLBACK_KEY, e.getMessage());
+        }
+
+        if( null != fallbackKeyBuffer) {
+            try {
+                fallbackKeyJsonObj = new JSONObject(new String(fallbackKeyBuffer, "UTF-8"));
+            } catch (Exception e) {
+                Log.e(LOG_TAG, "## fallbackKey(): Exception - Msg=" + e.getMessage());
+            }
+        } else {
+            Log.e(LOG_TAG, "## fallbackKey(): Failure - identityKeysJni()=null");
+        }
+
+        return OlmUtility.toStringMapMap(fallbackKeyJsonObj);
+    }
+
+    private native byte[] fallbackKeyJni();
+
+
+    /**
+     * Forget about the old fallback key.
+     *
+     * This should be called once you are reasonably certain that you will not
+     * receive any more messages that use the old fallback key (e.g. 5 minutes
+     * after the new fallback key has been published).
+     * @throws OlmException the failure reason
+     **/
+    public void forgetFallbackKey() throws OlmException {
+        try {
+            forgetFallbackKeyJni();
+        } catch (Exception e) {
+            throw new OlmException(OlmException.EXCEPTION_CODE_ACCOUNT_FORGET_FALLBACK_KEY, e.getMessage());
+        }
+    }
+
+    private native void forgetFallbackKeyJni();
 }

android/olm-sdk/src/main/java/org/matrix/olm/OlmException.java

@@ -35,6 +35,9 @@ public class OlmException extends IOException {
     public static final int EXCEPTION_CODE_ACCOUNT_REMOVE_ONE_TIME_KEYS = 105;
     public static final int EXCEPTION_CODE_ACCOUNT_MARK_ONE_KEYS_AS_PUBLISHED = 106;
     public static final int EXCEPTION_CODE_ACCOUNT_SIGN_MESSAGE = 107;
+    public static final int EXCEPTION_CODE_ACCOUNT_GENERATE_FALLBACK_KEY = 108;
+    public static final int EXCEPTION_CODE_ACCOUNT_FALLBACK_KEY = 109;
+    public static final int EXCEPTION_CODE_ACCOUNT_FORGET_FALLBACK_KEY = 110;
 
     public static final int EXCEPTION_CODE_CREATE_INBOUND_GROUP_SESSION = 200;
     public static final int EXCEPTION_CODE_INIT_INBOUND_GROUP_SESSION = 201;
@@ -57,6 +60,7 @@ public class OlmException extends IOException {
     public static final int EXCEPTION_CODE_SESSION_ENCRYPT_MESSAGE = 404;
     public static final int EXCEPTION_CODE_SESSION_DECRYPT_MESSAGE = 405;
     public static final int EXCEPTION_CODE_SESSION_SESSION_IDENTIFIER = 406;
+    public static final int EXCEPTION_CODE_SESSION_SESSION_DESCRIBE = 407;
 
     public static final int EXCEPTION_CODE_UTILITY_CREATION = 500;
     public static final int EXCEPTION_CODE_UTILITY_VERIFY_SIGNATURE = 501;

android/olm-sdk/src/main/java/org/matrix/olm/OlmInboundGroupSession.java

@@ -369,4 +369,29 @@ public class OlmInboundGroupSession extends CommonSerializeUtils implements Seri
      * @return the deserialized session
      **/
     private native long deserializeJni(byte[] aSerializedData, byte[] aKey);
+
+    /**
+     * Return a pickled inbound group session as a bytes buffer.<br>
+     * The session is serialized and encrypted with aKey.
+     * In case of failure, an error human readable
+     * description is provide in aErrorMsg.
+     * @param aKey encryption key
+     * @param aErrorMsg error message description
+     * @return the pickled inbound group session as bytes buffer
+     */
+    public byte[] pickle(byte[] aKey, StringBuffer aErrorMsg) {
+        return serialize(aKey, aErrorMsg);
+    }
+
+    /**
+     * Loads an inbound group session from a pickled bytes buffer.<br>
+     * See {@link #serialize(byte[], StringBuffer)}
+     * @param aSerializedData bytes buffer
+     * @param aKey key used to encrypted
+     * @exception Exception the exception
+     */
+    public void unpickle(byte[] aSerializedData, byte[] aKey) throws Exception {
+        deserialize(aSerializedData, aKey);
+    }
+
 }

android/olm-sdk/src/main/java/org/matrix/olm/OlmManager.java

@@ -46,7 +46,7 @@ public class OlmManager {
      * @return the library version
      */
     public String getVersion() {
-        return "3.2.2";
+        return BuildConfig.OLM_VERSION;
     }
 
     /**

android/olm-sdk/src/main/java/org/matrix/olm/OlmOutboundGroupSession.java

@@ -293,4 +293,28 @@ public class OlmOutboundGroupSession extends CommonSerializeUtils implements Ser
      **/
     private native long deserializeJni(byte[] aSerializedData, byte[] aKey);
 
+    /**
+     * Return a pickled outbound group session as a bytes buffer.<br>
+     * The session is serialized and encrypted with aKey.
+     * In case of failure, an error human readable
+     * description is provide in aErrorMsg.
+     * @param aKey encryption key
+     * @param aErrorMsg error message description
+     * @return the pickled outbound group session as bytes buffer
+     */
+    public byte[] pickle(byte[] aKey, StringBuffer aErrorMsg) {
+        return serialize(aKey, aErrorMsg);
+    }
+
+    /**
+     * Loads an outbound group session from a pickled bytes buffer.<br>
+     * See {@link #serialize(byte[], StringBuffer)}
+     * @param aSerializedData bytes buffer
+     * @param aKey key used to encrypted
+     * @exception Exception the exception
+     */
+    public void unpickle(byte[] aSerializedData, byte[] aKey) throws Exception {
+        deserialize(aSerializedData, aKey);
+    }
+
 }

android/olm-sdk/src/main/java/org/matrix/olm/OlmSAS.java

@@ -106,6 +106,16 @@ public class OlmSAS {
         return null;
     }
 
+    public String calculateMacFixedBase64(String message, String info) throws OlmException {
+        try {
+            byte[] bytes = calculateMacFixedBase64Jni(message.getBytes("UTF-8"), info.getBytes("UTF-8"));
+            if (bytes != null) return new String(bytes, "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            throw new OlmException(OlmException.EXCEPTION_CODE_SAS_ERROR, e.getMessage());
+        }
+        return null;
+    }
+
     public String calculateMacLongKdf(String message, String info) throws OlmException {
         try {
             byte[] bytes = calculateMacLongKdfJni(message.getBytes("UTF-8"), info.getBytes("UTF-8"));
@@ -140,6 +150,8 @@ public class OlmSAS {
 
     private native byte[] calculateMacJni(byte[] message, byte[] info);
 
+    private native byte[] calculateMacFixedBase64Jni(byte[] message, byte[] info);
+
     private native byte[] calculateMacLongKdfJni(byte[] message, byte[] info);
 
     /**

android/olm-sdk/src/main/java/org/matrix/olm/OlmSession.java

@@ -223,6 +223,23 @@ public class OlmSession extends CommonSerializeUtils implements Serializable {
      */
     private native byte[] getSessionIdentifierJni();
 
+    public String sessionDescribe() throws OlmException {
+        try {
+            byte[] buffer = olmSessionDescribeJni();
+
+            if (null != buffer) {
+                return new String(buffer, "UTF-8");
+            }
+        } catch (Exception e) {
+            Log.e(LOG_TAG, "## sessionDescribe(): " + e.getMessage());
+            throw new OlmException(OlmException.EXCEPTION_CODE_SESSION_SESSION_DESCRIBE, e.getMessage());
+        }
+
+        return null;
+    }
+
+    private native byte[] olmSessionDescribeJni();
+
     /**
      * Checks if the PRE_KEY({@link OlmMessage#MESSAGE_TYPE_PRE_KEY}) message is for this in-bound session.<br>
      * This API may be used to process a "m.room.encrypted" event when type = 1 (PRE_KEY).
@@ -448,5 +465,30 @@ public class OlmSession extends CommonSerializeUtils implements Serializable {
      * @return the deserialized session
      **/
     private native long deserializeJni(byte[] aSerializedData, byte[] aKey);
+
+    /**
+     * Return a pickled session as a bytes buffer.<br>
+     * The session is serialized and encrypted with aKey.
+     * In case of failure, an error human readable
+     * description is provide in aErrorMsg.
+     * @param aKey encryption key
+     * @param aErrorMsg error message description
+     * @return the pickled session as bytes buffer
+     */
+    public byte[] pickle(byte[] aKey, StringBuffer aErrorMsg) {
+        return serialize(aKey, aErrorMsg);
+    }
+
+    /**
+     * Loads a session from a pickled bytes buffer.<br>
+     * See {@link #serialize(byte[], StringBuffer)}
+     * @param aSerializedData bytes buffer
+     * @param aKey key used to encrypted
+     * @exception Exception the exception
+     */
+    public void unpickle(byte[] aSerializedData, byte[] aKey) throws Exception {
+        deserialize(aSerializedData, aKey);
+    }
+
 }
 

android/olm-sdk/src/main/jni/olm_account.cpp

@@ -442,6 +442,161 @@ JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(markOneTimeKeysAsPublishedJni)(JNIEnv *env,
     }
 }
 
+/**
+ * Generate "fallback key".
+ * An exception is thrown if the operation fails.
+ **/
+JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(generateFallbackKeyJni)(JNIEnv *env, jobject thiz)
+{
+    const char* errorMessage = NULL;
+    OlmAccount *accountPtr = getAccountInstanceId(env, thiz);
+
+    if (!accountPtr)
+    {
+        LOGE("## generateFallbackKeyJni(): failure - invalid Account ptr");
+        errorMessage = "invalid Account ptr";
+    }
+    else
+    {
+        // keys memory allocation
+        size_t randomLength = olm_account_generate_fallback_key_random_length(accountPtr);
+        LOGD("## generateFallbackKeyJni(): randomLength=%lu", static_cast<long unsigned int>(randomLength));
+
+        uint8_t *randomBufferPtr = NULL;
+
+        if ((0 != randomLength) && !setRandomInBuffer(env, &randomBufferPtr, randomLength))
+        {
+            LOGE("## generateFallbackKeyJni(): failure - random buffer init");
+            errorMessage = "random buffer init";
+        }
+        else
+        {
+            LOGD("## generateFallbackKeyJni(): accountPtr =%p", accountPtr);
+
+            // retrieve key pairs in keysBytesPtr
+            size_t result = olm_account_generate_fallback_key(accountPtr, (void*)randomBufferPtr, randomLength);
+
+            if (result == olm_error())
+            {
+                errorMessage = olm_account_last_error(accountPtr);
+                LOGE("## generateFallbackKeyJni(): failure - error generating fallback keys Msg=%s", errorMessage);
+            }
+            else
+            {
+                LOGD("## generateFallbackKeyJni(): success - result=%lu", static_cast<long unsigned int>(result));
+            }
+        }
+
+        if (randomBufferPtr)
+        {
+            memset(randomBufferPtr, 0, randomLength);
+            free(randomBufferPtr);
+        }
+    }
+
+    if (errorMessage)
+    {
+        env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
+    }
+}
+
+/**
+ * Get "fallback key".<br>
+ * Return the public parts of the unpublished "fallback key" for the account
+ * @return a valid byte array if operation succeed, null otherwise
+ **/
+JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(fallbackKeyJni)(JNIEnv *env, jobject thiz)
+{
+    const char* errorMessage = NULL;
+    jbyteArray byteArrayRetValue = NULL;
+    OlmAccount* accountPtr = getAccountInstanceId(env, thiz);
+
+    LOGD("## fallbackKeyJni(): IN");
+
+    if (!accountPtr)
+    {
+        LOGE("## fallbackKeyJni(): failure - invalid Account ptr");
+        errorMessage = "invalid Account ptr";
+    }
+    else
+    {
+        // keys memory allocation
+        size_t keysLength = olm_account_unpublished_fallback_key_length(accountPtr);
+        uint8_t *keysBytesPtr = (uint8_t *)malloc(keysLength*sizeof(uint8_t));
+
+        if (!keysBytesPtr)
+        {
+            LOGE("## fallbackKeyJni(): failure - fallback key OOM");
+            errorMessage = "fallback key OOM";
+        }
+        else
+        {
+            // retrieve key pairs in keysBytesPtr
+            size_t keysResult = olm_account_unpublished_fallback_key(accountPtr, keysBytesPtr, keysLength);
+
+            if (keysResult == olm_error()) {
+                LOGE("## fallbackKeyJni(): failure - error getting fallback key Msg=%s",(const char *)olm_account_last_error(accountPtr));
+                errorMessage = (const char *)olm_account_last_error(accountPtr);
+            }
+            else
+            {
+                // allocate the byte array to be returned to java
+                byteArrayRetValue = env->NewByteArray(keysLength);
+
+                if (!byteArrayRetValue)
+                {
+                    LOGE("## fallbackKeyJni(): failure - return byte array OOM");
+                    errorMessage = "return byte array OOM";
+                }
+                else
+                {
+                    env->SetByteArrayRegion(byteArrayRetValue, 0/*offset*/, keysLength, (const jbyte*)keysBytesPtr);
+                    LOGD("## fallbackKeyJni(): success");
+                }
+            }
+
+            free(keysBytesPtr);
+        }
+    }
+
+    if (errorMessage)
+    {
+        env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
+    }
+
+    return byteArrayRetValue;
+}
+
+
+/**
+ * Forget about the old fallback key.
+ *
+ * This should be called once you are reasonably certain that you will not
+ * receive any more messages that use the old fallback key (e.g. 5 minutes
+ * after the new fallback key has been published).
+ **/
+JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(forgetFallbackKeyJni)(JNIEnv *env, jobject thiz)
+{
+    const char* errorMessage = NULL;
+    OlmAccount *accountPtr = getAccountInstanceId(env, thiz);
+
+    if (!accountPtr)
+    {
+        LOGE("## forgetFallbackKeyJni(): failure - invalid Account ptr");
+        errorMessage = "invalid Account ptr";
+    }
+    else
+    {
+       olm_account_forget_old_fallback_key(accountPtr);
+    }
+
+    if (errorMessage)
+    {
+        env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
+    }
+
+}
+
 /**
  * Sign a message with the ed25519 key (fingerprint) for this account.<br>
  * The signed message is returned by the function.
@@ -495,7 +650,7 @@ JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject t
             else
             {
                 LOGD("## signMessageJni(): success - retCode=%lu signatureLength=%lu", static_cast<long unsigned int>(resultSign), static_cast<long unsigned int>(signatureLength));
-     	
+
                 signedMsgRetValueBuffer = env->NewByteArray(signatureLength);
                 env->SetByteArrayRegion(signedMsgRetValueBuffer, 0 , signatureLength, (jbyte*)signedMsgPtr);
             }

android/olm-sdk/src/main/jni/olm_account.h

@@ -42,6 +42,11 @@ JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(generateOneTimeKeysJni)(JNIEnv *env, jobject
 JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(removeOneTimeKeysJni)(JNIEnv *env, jobject thiz, jlong aNativeOlmSessionId);
 JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(markOneTimeKeysAsPublishedJni)(JNIEnv *env, jobject thiz);
 
+// fallback keys
+JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(generateFallbackKeyJni)(JNIEnv *env, jobject thiz);
+JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(fallbackKeyJni)(JNIEnv *env, jobject thiz);
+JNIEXPORT void OLM_ACCOUNT_FUNC_DEF(forgetFallbackKeyJni)(JNIEnv *env, jobject thiz);
+
 // signing
 JNIEXPORT jbyteArray OLM_ACCOUNT_FUNC_DEF(signMessageJni)(JNIEnv *env, jobject thiz, jbyteArray aMessage);
 

android/olm-sdk/src/main/jni/olm_sas.cpp

@@ -309,6 +309,86 @@ JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacJni)(JNIEnv *env, jobject thiz
     return returnValue;
 }
 
+JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacFixedBase64Jni)(JNIEnv *env, jobject thiz,jbyteArray messageBuffer,jbyteArray infoBuffer) {
+    LOGD("## calculateMacFixedBase64Jni(): IN");
+    const char* errorMessage = NULL;
+    jbyteArray returnValue = 0;
+    OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
+
+    jbyte *messagePtr = NULL;
+    jboolean messageWasCopied = JNI_FALSE;
+
+    jbyte *infoPtr = NULL;
+    jboolean infoWasCopied = JNI_FALSE;
+
+    if (!sasPtr)
+    {
+        LOGE("## calculateMacFixedBase64Jni(): failure - invalid SAS ptr=NULL");
+        errorMessage = "invalid SAS ptr=NULL";
+    } else if(!messageBuffer) {
+        LOGE("## calculateMacFixedBase64Jni(): failure - invalid message");
+        errorMessage = "invalid info";
+    }
+    else if (!(messagePtr = env->GetByteArrayElements(messageBuffer, &messageWasCopied)))
+    {
+        LOGE(" ## calculateMacFixedBase64Jni(): failure - message JNI allocation OOM");
+        errorMessage = "message JNI allocation OOM";
+    }
+    else if (!(infoPtr = env->GetByteArrayElements(infoBuffer, &infoWasCopied)))
+    {
+        LOGE(" ## calculateMacFixedBase64Jni(): failure - info JNI allocation OOM");
+        errorMessage = "info JNI allocation OOM";
+    } else {
+
+        size_t infoLength = (size_t)env->GetArrayLength(infoBuffer);
+        size_t messageLength = (size_t)env->GetArrayLength(messageBuffer);
+        size_t macLength = olm_sas_mac_length(sasPtr);
+
+        void *macPtr = malloc(macLength*sizeof(uint8_t));
+
+        size_t result = olm_sas_calculate_mac_fixed_base64(sasPtr,messagePtr,messageLength,infoPtr,infoLength,macPtr,macLength);
+        if (result == olm_error())
+        {
+            errorMessage = (const char *)olm_sas_last_error(sasPtr);
+            LOGE("## calculateMacFixedBase64Jni(): failure - error calculating SAS mac Msg=%s", errorMessage);
+        }
+        else
+        {
+            returnValue = env->NewByteArray(macLength);
+            env->SetByteArrayRegion(returnValue, 0 , macLength, (jbyte*)macPtr);
+        }
+
+        if (macPtr) {
+            free(macPtr);
+        }
+    }
+
+    // free alloc
+    if (infoPtr)
+    {
+        if (infoWasCopied)
+        {
+            memset(infoPtr, 0, (size_t)env->GetArrayLength(infoBuffer));
+        }
+        env->ReleaseByteArrayElements(infoBuffer, infoPtr, JNI_ABORT);
+    }
+    if (messagePtr)
+    {
+        if (messageWasCopied)
+        {
+            memset(messagePtr, 0, (size_t)env->GetArrayLength(messageBuffer));
+        }
+        env->ReleaseByteArrayElements(messageBuffer, messagePtr, JNI_ABORT);
+    }
+
+    if (errorMessage)
+    {
+        env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
+    }
+
+    return returnValue;
+}
+
 JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacLongKdfJni)(JNIEnv *env, jobject thiz,jbyteArray messageBuffer,jbyteArray infoBuffer) {
     LOGD("## calculateMacLongKdfJni(): IN");
     const char* errorMessage = NULL;
@@ -387,4 +467,4 @@ JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacLongKdfJni)(JNIEnv *env, jobje
     }
 
     return returnValue;
-}
+}

android/olm-sdk/src/main/jni/olm_sas.h

@@ -32,6 +32,7 @@ JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(getPubKeyJni)(JNIEnv *env, jobject thiz);
 JNIEXPORT void OLM_SAS_FUNC_DEF(setTheirPubKey)(JNIEnv *env, jobject thiz,jbyteArray pubKey);
 JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(generateShortCodeJni)(JNIEnv *env, jobject thiz, jbyteArray infoStringBytes, jint byteNb);
 JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacJni)(JNIEnv *env, jobject thiz, jbyteArray messageBuffer, jbyteArray infoBuffer);
+JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacFixedBase64Jni)(JNIEnv *env, jobject thiz, jbyteArray messageBuffer, jbyteArray infoBuffer);
 JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacLongKdfJni)(JNIEnv *env, jobject thiz, jbyteArray messageBuffer, jbyteArray infoBuffer);
 
 #ifdef __cplusplus

android/olm-sdk/src/main/jni/olm_session.cpp

@@ -798,6 +798,58 @@ JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(getSessionIdentifierJni)(JNIEnv *env,
      return returnValue;
 }
 
+JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(olmSessionDescribeJni(JNIEnv *env, jobject thiz))
+{
+    const char* errorMessage = NULL;
+    jbyteArray returnValue = 0;
+
+    LOGD("## olmSessionDescribeJni(): IN ");
+
+    OlmSession *sessionPtr = getSessionInstanceId(env, thiz);
+
+    if (!sessionPtr)
+    {
+        LOGE("## olmSessionDescribeJni(): failure - invalid Session ptr=NULL");
+        errorMessage = "invalid Session ptr=NULL";
+    }
+    else
+    {
+        int maxLength = 600;
+        char* describePtr = NULL;
+        describePtr = (char*) malloc(maxLength * sizeof *describePtr);
+        if (!describePtr)
+        {
+            LOGE("## olmSessionDescribeJni(): failure - describe allocation OOM");
+            errorMessage = "describe allocation OOM";
+        }
+        else
+        {
+            olm_session_describe(sessionPtr, describePtr, maxLength);
+            int length = strlen(describePtr);
+            if (length == 0)
+            {
+                LOGE("## olmSessionDescribeJni(): failure - get session describe");
+            }
+            else
+            {
+                LOGD("## olmSessionDescribeJni(): success - describe=%.*s", (char*)describePtr);
+
+                returnValue = env->NewByteArray(length);
+                env->SetByteArrayRegion(returnValue, 0, length, (jbyte*)describePtr);
+            }
+
+            free(describePtr);
+        }
+    }
+
+    if (errorMessage)
+    {
+        env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
+    }
+
+    return returnValue;
+}
+
 /**
  * Serialize and encrypt session instance.<br>
  * An exception is thrown if the operation fails.

android/olm-sdk/src/main/jni/olm_session.h

@@ -47,6 +47,7 @@ JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(encryptMessageJni)(JNIEnv *env, jobjec
 JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(decryptMessageJni)(JNIEnv *env, jobject thiz, jobject aEncryptedMsg);
 
 JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(getSessionIdentifierJni)(JNIEnv *env, jobject thiz);
+JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(olmSessionDescribeJni)(JNIEnv *env, jobject thiz);
 
 // serialization
 JNIEXPORT jbyteArray OLM_SESSION_FUNC_DEF(serializeJni)(JNIEnv *env, jobject thiz, jbyteArray aKey);

cmake/FindLibreSSL.cmake

@@ -1,227 +0,0 @@
-#[=======================================================================[
-
-Copyright (c) 2019 John Norrbin <jlnorrbin@johnex.se>
-
-Permission to use, copy, modify, and distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-FindLibreSSL
-------------
-
-Find the LibreSSL encryption library.
-
-Optional Components
-^^^^^^^^^^^^^^^^^^^
-
-This module supports two optional components: SSL and TLS.  Both
-components have associated imported targets, as described below.
-
-Imported Targets
-^^^^^^^^^^^^^^^^
-
-This module defines the following imported targets:
-
-LibreSSL::Crypto
-    The LibreSSL crypto library, if found.
-
-LibreSSL::SSL
-    The LibreSSL ssl library, if found. Requires and includes LibreSSL::Crypto automatically.
-
-LibreSSL::TLS
-    The LibreSSL tls library, if found. Requires and includes LibreSSL::SSL and LibreSSL::Crypto automatically.
-
-Result Variables
-^^^^^^^^^^^^^^^^
-
-This module will set the following variables in your project:
-
-LIBRESSL_FOUND
-    System has the LibreSSL library. If no components are requested it only requires the crypto library.
-LIBRESSL_INCLUDE_DIR
-    The LibreSSL include directory.
-LIBRESSL_CRYPTO_LIBRARY
-    The LibreSSL crypto library.
-LIBRESSL_SSL_LIBRARY
-    The LibreSSL SSL library.
-LIBRESSL_TLS_LIBRARY
-    The LibreSSL TLS library.
-LIBRESSL_LIBRARIES
-    All LibreSSL libraries.
-LIBRESSL_VERSION
-    This is set to $major.$minor.$revision (e.g. 2.6.8).
-
-Hints
-^^^^^
-
-Set LIBRESSL_ROOT_DIR to the root directory of an LibreSSL installation.
-
-]=======================================================================]
-
-INCLUDE(FindPackageHandleStandardArgs)
-
-# Set Hints
-set(_LIBRESSL_ROOT_HINTS
-    ${LIBRESSL_ROOT_DIR}
-    ENV LIBRESSL_ROOT_DIR
-)
-
-# Set Paths
-if (WIN32)
-    file(TO_CMAKE_PATH "$ENV{PROGRAMFILES}" _programfiles)
-    set(_LIBRESSL_ROOT_PATHS
-        "${_programfiles}/LibreSSL"
-    )
-    unset(_programfiles)
-else()
-    set(_LIBRESSL_ROOT_PATHS
-        "/usr/local/"
-    )
-endif()
-
-# Combine
-set(_LIBRESSL_ROOT_HINTS_AND_PATHS
-    HINTS ${_LIBRESSL_ROOT_HINTS}
-    PATHS ${_LIBRESSL_ROOT_PATHS}
-)
-
-# Find Include Path
-find_path(LIBRESSL_INCLUDE_DIR
-    NAMES
-        tls.h
-    ${_LIBRESSL_ROOT_HINTS_AND_PATHS}
-    PATH_SUFFIXES
-        include
-)
-
-# Find Crypto Library
-find_library(LIBRESSL_CRYPTO_LIBRARY
-    NAMES
-        libcrypto
-        crypto
-        NAMES_PER_DIR
-    ${_LIBRESSL_ROOT_HINTS_AND_PATHS}
-    PATH_SUFFIXES
-        lib
-)
-
-# Find SSL Library
-find_library(LIBRESSL_SSL_LIBRARY
-    NAMES
-        libssl
-        ssl
-        NAMES_PER_DIR
-    ${_LIBRESSL_ROOT_HINTS_AND_PATHS}
-    PATH_SUFFIXES
-        lib
-)
-
-# Find TLS Library
-find_library(LIBRESSL_TLS_LIBRARY
-    NAMES
-        libtls
-        tls
-        NAMES_PER_DIR
-    ${_LIBRESSL_ROOT_HINTS_AND_PATHS}
-    PATH_SUFFIXES
-        lib
-)
-
-# Set Libraries
-set(LIBRESSL_LIBRARIES ${LIBRESSL_CRYPTO_LIBRARY} ${LIBRESSL_SSL_LIBRARY} ${LIBRESSL_TLS_LIBRARY})
-
-# Mark Variables As Advanced
-mark_as_advanced(LIBRESSL_INCLUDE_DIR LIBRESSL_LIBRARIES LIBRESSL_CRYPTO_LIBRARY LIBRESSL_SSL_LIBRARY LIBRESSL_TLS_LIBRARY)
-
-# Find Version File
-if(LIBRESSL_INCLUDE_DIR AND EXISTS "${LIBRESSL_INCLUDE_DIR}/openssl/opensslv.h")
-
-    # Get Version From File
-    file(STRINGS "${LIBRESSL_INCLUDE_DIR}/openssl/opensslv.h" OPENSSLV.H REGEX "#define LIBRESSL_VERSION_TEXT[ ]+\".*\"")
-
-    # Match Version String
-    string(REGEX REPLACE ".*\".*([0-9]+)\\.([0-9]+)\\.([0-9]+)\"" "\\1;\\2;\\3" LIBRESSL_VERSION_LIST "${OPENSSLV.H}")
-
-    # Split Parts
-    list(GET LIBRESSL_VERSION_LIST 0 LIBRESSL_VERSION_MAJOR)
-    list(GET LIBRESSL_VERSION_LIST 1 LIBRESSL_VERSION_MINOR)
-    list(GET LIBRESSL_VERSION_LIST 2 LIBRESSL_VERSION_REVISION)
-
-    # Set Version String
-    set(LIBRESSL_VERSION "${LIBRESSL_VERSION_MAJOR}.${LIBRESSL_VERSION_MINOR}.${LIBRESSL_VERSION_REVISION}")
-
-endif()
-
-# Set Find Package Arguments
-find_package_handle_standard_args(LibreSSL
-    REQUIRED_VARS
-        LIBRESSL_CRYPTO_LIBRARY
-        LIBRESSL_INCLUDE_DIR
-    VERSION_VAR
-        LIBRESSL_VERSION
-    HANDLE_COMPONENTS
-        FAIL_MESSAGE
-        "Could NOT find LibreSSL, try setting the path to LibreSSL using the LIBRESSL_ROOT_DIR environment variable"
-)
-
-# LibreSSL Found
-if(LIBRESSL_FOUND)
-
-    # Set LibreSSL::Crypto
-    if(NOT TARGET LibreSSL::Crypto AND EXISTS "${LIBRESSL_CRYPTO_LIBRARY}")
-
-        # Add Library
-        add_library(LibreSSL::Crypto UNKNOWN IMPORTED)
-
-        # Set Properties
-        set_target_properties(
-            LibreSSL::Crypto
-            PROPERTIES
-                INTERFACE_INCLUDE_DIRECTORIES "${LIBRESSL_INCLUDE_DIR}"
-                IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-                IMPORTED_LOCATION "${LIBRESSL_CRYPTO_LIBRARY}"
-        )
-
-    endif() # LibreSSL::Crypto
-
-    # Set LibreSSL::SSL
-    if(NOT TARGET LibreSSL::SSL AND EXISTS "${LIBRESSL_SSL_LIBRARY}")
-
-        # Add Library
-        add_library(LibreSSL::SSL UNKNOWN IMPORTED)
-
-        # Set Properties
-        set_target_properties(
-            LibreSSL::SSL
-            PROPERTIES
-                INTERFACE_INCLUDE_DIRECTORIES "${LIBRESSL_INCLUDE_DIR}"
-                IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-                IMPORTED_LOCATION "${LIBRESSL_SSL_LIBRARY}"
-                INTERFACE_LINK_LIBRARIES LibreSSL::Crypto
-        )
-
-    endif() # LibreSSL::SSL
-
-    # Set LibreSSL::TLS
-    if(NOT TARGET LibreSSL::TLS AND EXISTS "${LIBRESSL_TLS_LIBRARY}")
-        add_library(LibreSSL::TLS UNKNOWN IMPORTED)
-        set_target_properties(
-            LibreSSL::TLS
-            PROPERTIES
-                INTERFACE_INCLUDE_DIRECTORIES "${LIBRESSL_INCLUDE_DIR}"
-                IMPORTED_LINK_INTERFACE_LANGUAGES "C"
-                IMPORTED_LOCATION "${LIBRESSL_TLS_LIBRARY}"
-                INTERFACE_LINK_LIBRARIES LibreSSL::SSL
-        )
-
-    endif() # LibreSSL::TLS
-
-endif(LIBRESSL_FOUND)

common.mk

@@ -1,4 +1,4 @@
 
 MAJOR := 3
 MINOR := 2
-PATCH := 2
+PATCH := 16

docs/megolm.md

@@ -109,7 +109,7 @@ discriminate between sessions.
 ### Sharing session data
 
 To allow other participants in the conversation to decrypt messages, the
-session data is formatted as described in [Session-sharing format](#Session-sharing-format). It is then
+session data is formatted as described in [Session-sharing format](#session-sharing-format). It is then
 shared with other participants in the conversation via a secure peer-to-peer
 channel (such as that provided by [Olm][]).
 
@@ -182,9 +182,13 @@ but the decision of which ratchet states to cache is left to the application.
 
 ## Data exchange formats
 
-### Session-sharing format
+### Session sharing format
 
-The Megolm key-sharing format is as follows:
+This format is used for the initial sharing of a Megolm session with other
+group participants who need to be able to read messages encrypted by this
+session.
+
+The session sharing format is as follows:
 
 ```
 +---+----+--------+--------+--------+--------+------+-----------+
@@ -202,6 +206,33 @@ part of the Ed25519 keypair $`K`$.
 The data is then signed using the Ed25519 keypair, and the 64-byte signature is
 appended.
 
+### Session export format
+
+Once the session is initially shared with the group participants, each
+participant needs to retain a copy of the session if they want to maintain
+their ability to decrypt messages encrypted with that session.
+
+For forward-secrecy purposes, a participant may choose to store a ratcheted
+version of the session. But since the ratchet index is covered by the
+signature, this would invalidate the signature. So we define a similar format,
+called the *session export format*, which is identical to the [session sharing
+format](#session-sharing-format) except for dropping the signature.
+
+The Megolm session export format is thus as follows:
+
+```
++---+----+--------+--------+--------+--------+------+
+| V | i  | R(i,0) | R(i,1) | R(i,2) | R(i,3) | Kpub |
++---+----+--------+--------+--------+--------+------+
+0   1    5        37       69      101      133    165   bytes
+```
+
+The version byte, ``V``, is ``"\x01"``.
+
+This is followed by the ratchet index, $`i`$, which is encoded as a
+big-endian 32-bit integer; the ratchet values $`R_{i,j}`$; and the public
+part of the Ed25519 keypair $`K`$.
+
 ### Message format
 
 Megolm messages consist of a one byte version, followed by a variable length

exports.py

@@ -1,10 +1,10 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys
 import re
 import json
 
-expr = re.compile(r"(olm_[^( ]*)\(")
+expr = re.compile(r"(_*olm_[^( ]*)\(")
 
 exports = {'_free', '_malloc'}
 

flake.lock

@@ -0,0 +1,60 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1664871473,
+        "narHash": "sha256-1LzbW6G6Uz8akWiOdlIi435GAm1ct5jF5tovw/9to0o=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "b7a6fde153d9470afdb6aa1da51c4117f03b84ed",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "npmlock2nix": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1654775747,
+        "narHash": "sha256-9pXHDpIjmsK5390wmpGHu9aA4QOPpegPBvThHeBlef4=",
+        "owner": "nix-community",
+        "repo": "npmlock2nix",
+        "rev": "5c4f247688fc91d665df65f71c81e0726621aaa8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "npmlock2nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "npmlock2nix": "npmlock2nix"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,40 @@
+{
+  description = "An implementation of the Double Ratchet cryptographic ratchet";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  # We can't use the current stable release because of
+  # https://github.com/emscripten-core/emscripten/issues/16913
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+  inputs.npmlock2nix = {
+    url = "github:nix-community/npmlock2nix";
+    flake = false;
+  };
+
+  outputs = { self, nixpkgs, flake-utils, npmlock2nix }:
+    let
+      localOverlay = import ./nix/overlay.nix;
+      pkgsForSystem = system: import nixpkgs {
+        inherit system;
+        overlays = [
+          (final: prev: {
+            npmlock2nix = final.callPackage npmlock2nix {};
+            node_modules = final.npmlock2nix.node_modules { src = ./javascript; };
+          })
+          localOverlay
+        ];
+      };
+    in (
+      # some systems cause issues, e.g. i686-linux is unsupported by gradle,
+      # which causes "nix flake check" to fail. Investigate more later, but for
+      # now, we will just allow x86_64-linux
+      flake-utils.lib.eachSystem [ "x86_64-linux" "x86_64-darwin" "aarch64-darwin" ] (system: rec {
+        legacyPackages = pkgsForSystem system;
+        checks = {
+          inherit (legacyPackages) olm-gcc-cmake olm-clang-cmake olm-gcc-make;
+        };
+        packages = {
+          javascript = legacyPackages.olm-javascript;
+        };
+      }
+    ));
+}

fuzzers/fuzz_group_decrypt.cpp

@@ -1,73 +0,0 @@
-#include "olm/olm.hh"
-
-#include "fuzzing.hh"
-
-int main(int argc, const char *argv[]) {
-    size_t ignored;
-    if (argc <= 2) {
-        const char * message = "Usage: decrypt <pickle_key> <group_session>\n";
-        ignored = write(STDERR_FILENO, message, strlen(message));
-        exit(3);
-    }
-
-    const char * key = argv[1];
-    size_t key_length = strlen(key);
-
-
-    int session_fd = check_errno(
-        "Error opening session file", open(argv[2], O_RDONLY)
-    );
-
-    uint8_t *session_buffer;
-    ssize_t session_length = check_errno(
-        "Error reading session file", read_file(session_fd, &session_buffer)
-    );
-
-    int message_fd = STDIN_FILENO;
-    uint8_t * message_buffer;
-    ssize_t message_length = check_errno(
-        "Error reading message file", read_file(message_fd, &message_buffer)
-    );
-
-    uint8_t * tmp_buffer = (uint8_t *) malloc(message_length);
-    memcpy(tmp_buffer, message_buffer, message_length);
-
-    uint8_t session_memory[olm_inbound_group_session_size()];
-    OlmInboundGroupSession * session = olm_inbound_group_session(session_memory);
-    check_error(
-        olm_inbound_group_session_last_error,
-        session,
-        "Error unpickling session",
-        olm_unpickle_inbound_group_session(
-            session, key, key_length, session_buffer, session_length
-        )
-    );
-
-    size_t max_length = check_error(
-        olm_inbound_group_session_last_error,
-        session,
-        "Error getting plaintext length",
-        olm_group_decrypt_max_plaintext_length(
-            session, tmp_buffer, message_length
-        )
-    );
-
-    uint8_t plaintext[max_length];
-
-    uint32_t ratchet_index;
-
-    size_t length = check_error(
-        olm_inbound_group_session_last_error,
-        session,
-        "Error decrypting message",
-        olm_group_decrypt(
-            session,
-            message_buffer, message_length,
-            plaintext, max_length, &ratchet_index
-        )
-    );
-
-    ignored = write(STDOUT_FILENO, plaintext, length);
-    ignored = write(STDOUT_FILENO, "\n", 1);
-    return ignored;
-}

fuzzers/fuzz_unpickle_account.cpp

@@ -1,14 +0,0 @@
-#include "olm/account.hh"
-#include "fuzzing.hh"
-
-int main(int argc, const char *argv[]) {
-    int pickle_fd = STDIN_FILENO;
-    uint8_t * pickle_buffer;
-    ssize_t pickle_length = check_errno(
-        "Error reading pickle file", read_file(pickle_fd, &pickle_buffer)
-    );
-    olm::Account * account = new olm::Account;
-    unpickle(pickle_buffer, pickle_buffer + pickle_length, *account);
-    free(pickle_buffer);
-    delete account;
-}

fuzzing/README.md

@@ -0,0 +1,10 @@
+# Directory structure
+
+- `fuzzers/`: Sources for the fuzzing harnesses.
+- `corpora/`: Contains the fuzzing corpora and assorted tools. The corpora are
+  filed under a directory with the same name as the fuzzing harness. Each of
+  those directories also contains the following:
+
+  - `in/`: Contains the actual corpus test cases.
+  - `tools/`: Any tools useful for that particular harness. A good example
+    would be a binary which generates seed test cases.

fuzzing/fuzzers/fuzz_decode_message.cpp

@@ -11,4 +11,6 @@ int main(int argc, const char *argv[]) {
     decode_message(*reader, message_buffer, message_length, 8);
     free(message_buffer);
     delete reader;
+
+    return EXIT_SUCCESS;
 }

fuzzing/fuzzers/fuzz_decrypt.cpp

@@ -3,11 +3,10 @@
 #include "fuzzing.hh"
 
 int main(int argc, const char *argv[]) {
-    size_t ignored;
     if (argc <= 3) {
         const char * message = "Usage: decrypt: <session_key> <session_file>"
             " <message_type>\n";
-        ignored = write(STDERR_FILENO, message, strlen(message));
+        (void)write(STDERR_FILENO, message, strlen(message));
         exit(3);
     }
 
@@ -59,7 +58,12 @@ int main(int argc, const char *argv[]) {
         )
     );
 
-    ignored = write(STDOUT_FILENO, plaintext, length);
-    ignored = write(STDOUT_FILENO, "\n", 1);
-    return ignored;
+    (void)write(STDOUT_FILENO, plaintext, length);
+    (void)write(STDOUT_FILENO, "\n", 1);
+
+    free(session_buffer);
+    free(message_buffer);
+    free(tmp_buffer);
+
+    return EXIT_SUCCESS;
 }

fuzzing/fuzzers/fuzz_group_decrypt.cpp

@@ -0,0 +1,102 @@
+#include "olm/olm.hh"
+
+#include "fuzzing.hh"
+
+#ifndef __AFL_FUZZ_TESTCASE_LEN
+  ssize_t fuzz_len;
+  #define __AFL_FUZZ_TESTCASE_LEN fuzz_len
+  unsigned char fuzz_buf[1024000];
+  #define __AFL_FUZZ_TESTCASE_BUF fuzz_buf
+  #define __AFL_FUZZ_INIT() void sync(void);
+  #define __AFL_LOOP(x) ((fuzz_len = read(0, fuzz_buf, sizeof(fuzz_buf))) > 0 ? 1 : 0)
+  #define __AFL_INIT() sync()
+#endif
+
+__AFL_FUZZ_INIT();
+
+int main(int argc, const char *argv[]) {
+    if (argc <= 2) {
+        const char * message = "Usage: decrypt <pickle_key> <group_session>\n";
+        (void)write(STDERR_FILENO, message, strlen(message));
+        exit(3);
+    }
+
+    const char * key = argv[1];
+    size_t key_length = strlen(key);
+
+
+    int session_fd = check_errno(
+        "Error opening session file", open(argv[2], O_RDONLY)
+    );
+
+    uint8_t *session_buffer;
+    ssize_t session_length = check_errno(
+        "Error reading session file", read_file(session_fd, &session_buffer)
+    );
+
+    uint8_t session_memory[olm_inbound_group_session_size()];
+    OlmInboundGroupSession * session = olm_inbound_group_session(session_memory);
+    check_error(
+        olm_inbound_group_session_last_error,
+        session,
+        "Error unpickling session",
+        olm_unpickle_inbound_group_session(
+            session, key, key_length, session_buffer, session_length
+        )
+    );
+
+#ifdef __AFL_HAVE_MANUAL_CONTROL
+    __AFL_INIT();
+#endif
+
+    size_t test_case_buf_len = 1024;
+    uint8_t * message_buffer = (uint8_t *) malloc(test_case_buf_len);
+    uint8_t * tmp_buffer = (uint8_t *) malloc(test_case_buf_len);
+
+    while (__AFL_LOOP(10000)) {
+        size_t message_length = __AFL_FUZZ_TESTCASE_LEN;
+
+        if (message_length > test_case_buf_len) {
+            message_buffer = (uint8_t *)realloc(message_buffer, message_length);
+            tmp_buffer = (uint8_t *)realloc(tmp_buffer, message_length);
+
+            if (!message_buffer || !tmp_buffer) return 1;
+        }
+
+        memcpy(message_buffer, __AFL_FUZZ_TESTCASE_BUF, message_length);
+        memcpy(tmp_buffer, message_buffer, message_length);
+
+        size_t max_length = check_error(
+            olm_inbound_group_session_last_error,
+            session,
+            "Error getting plaintext length",
+            olm_group_decrypt_max_plaintext_length(
+                session, tmp_buffer, message_length
+            )
+        );
+
+        uint8_t plaintext[max_length];
+
+        uint32_t ratchet_index;
+
+        size_t length = check_error(
+            olm_inbound_group_session_last_error,
+            session,
+            "Error decrypting message",
+            olm_group_decrypt(
+                session,
+                message_buffer, message_length,
+                plaintext, max_length, &ratchet_index
+            )
+        );
+
+        (void)write(STDOUT_FILENO, plaintext, length);
+        (void)write(STDOUT_FILENO, "\n", 1);
+    }
+
+    free(session_buffer);
+    free(message_buffer);
+    free(tmp_buffer);
+
+    return EXIT_SUCCESS;
+}

fuzzing/fuzzers/fuzz_unpickle_account.cpp

@@ -0,0 +1,41 @@
+#include "fuzzing.hh"
+#include "olm/account.hh"
+#include "olm/olm.h"
+
+size_t fuzz_unpickle_account(
+    OlmAccount * account, void * pickled, size_t pickled_length
+) {
+    olm::Account & object = *reinterpret_cast<olm::Account *>(account);
+    std::uint8_t * const pos = reinterpret_cast<std::uint8_t *>(pickled);
+    std::uint8_t * const end = pos + pickled_length;
+
+    if (!unpickle(pos, end, object)) {
+        if (object.last_error == OlmErrorCode::OLM_SUCCESS) {
+            object.last_error = OlmErrorCode::OLM_CORRUPTED_PICKLE;
+        }
+        return std::size_t(-1);
+    }
+
+    return pickled_length;
+}
+
+int main(int argc, const char * argv[]) {
+    int pickle_fd = STDIN_FILENO;
+    uint8_t * pickle_buffer;
+    ssize_t pickle_length = check_errno(
+        "Error reading pickle file", read_file(pickle_fd, &pickle_buffer));
+
+    void * account_buf = malloc(olm_account_size());
+    if (!account_buf) {
+        return 3;
+    }
+    OlmAccount * account = olm_account(account_buf);
+
+    check_error(olm_account_last_error, account, "Error unpickling account",
+        fuzz_unpickle_account(account, pickle_buffer, pickle_length));
+
+    free(pickle_buffer);
+    free(account);
+
+    return EXIT_SUCCESS;
+}

fuzzing/fuzzers/fuzz_unpickle_megolm_outbound.c

@@ -0,0 +1,28 @@
+#include <olm/outbound_group_session.h>
+
+#include "fuzzing.h"
+
+int main(int argc, const char *argv[]) {
+    if (argc != 1) {
+      printf("Usage: %s <input_file\n", argv[0]);
+      exit(3);
+    }
+
+    void *session_buffer = malloc(olm_outbound_group_session_size());
+    OlmOutboundGroupSession *session = olm_outbound_group_session(session_buffer);
+
+    int pickle_fd = STDIN_FILENO;
+    uint8_t *pickle_buffer;
+    ssize_t pickle_length = check_errno("Error reading message file",
+                                        read_file(pickle_fd, &pickle_buffer));
+
+    check_outbound_group_session(
+        session, "Error unpickling outbound group session",
+        olm_unpickle_outbound_group_session(session, "", 0, pickle_buffer,
+                                            pickle_length));
+
+    free(session_buffer);
+    free(pickle_buffer);
+
+    return EXIT_SUCCESS;
+}

fuzzing/fuzzers/fuzz_unpickle_session.cpp

@@ -11,4 +11,6 @@ int main(int argc, const char *argv[]) {
     unpickle(pickle_buffer, pickle_buffer + pickle_length, *session);
     free(pickle_buffer);
     delete session;
+
+    return EXIT_SUCCESS;
 }

fuzzing/fuzzers/include/fuzzing.h

@@ -0,0 +1,101 @@
+#include "olm/olm.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stddef.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define OLM_FUZZING 1
+
+ssize_t read_file(
+    int fd,
+    uint8_t **buffer
+) {
+    size_t buffer_size = 1;
+    size_t buffer_pos = 0;
+    uint8_t * current_buffer = (uint8_t *) malloc(buffer_size);
+    if (!current_buffer) return -1;
+
+    while (1) {
+        ssize_t count = read(
+            fd, current_buffer + buffer_pos, buffer_size - buffer_pos
+        );
+
+        if (count < 0) break;  // A read error happened, so just fail immediately.
+
+        if (count == 0) {
+            // Nothing more left to read. We downsize the buffer to fit the
+            // data exactly, unless no data was read at all, in which case we
+            // skip the downsizing.
+
+            if (buffer_pos != 0) {
+                current_buffer = (uint8_t *) realloc(current_buffer, buffer_pos);
+                if (!current_buffer) break;
+            }
+
+            // The read was successful so we return the allocated buffer.
+            *buffer = current_buffer;
+            return buffer_pos;
+        }
+
+        buffer_pos += count;
+
+        // We've reached capacity, so enlarge the buffer.
+        if (buffer_pos == buffer_size) {
+            buffer_size *= 2;
+            uint8_t * new_buffer = (uint8_t *) realloc(current_buffer, buffer_size);
+            if (!new_buffer) break;
+            current_buffer = new_buffer;
+        }
+    }
+
+    free(current_buffer);
+    return -1;
+}
+
+ssize_t check_errno(
+    const char * message,
+    ssize_t value
+) {
+    if (value == (ssize_t)-1) {
+        perror(message);
+        exit(1);
+    }
+    return value;
+}
+
+size_t check_error(
+    const char * message,
+    const char * olm_message,
+    size_t value
+) {
+    if (value == olm_error()) {
+        (void)write(STDERR_FILENO, message, strlen(message));
+        (void)write(STDERR_FILENO, ": ", 2);
+        (void)write(STDERR_FILENO, olm_message, strlen(olm_message));
+        (void)write(STDERR_FILENO, "\n", 1);
+
+        exit(2);
+    }
+    return value;
+}
+
+size_t check_session(
+    OlmSession * session,
+    const char * message,
+    size_t value
+) {
+    return check_error(message, olm_session_last_error(session), value);
+}
+
+size_t check_outbound_group_session(
+    OlmOutboundGroupSession * session,
+    const char * message,
+    size_t value
+) {
+    return check_error(message, olm_outbound_group_session_last_error(session), value);
+}

fuzzing/fuzzers/include/fuzzing.hh

@@ -15,28 +15,43 @@ ssize_t read_file(
     uint8_t **buffer
 ) {
     size_t buffer_size = 4096;
-    uint8_t * current_buffer = (uint8_t *) malloc(buffer_size);
-    if (current_buffer == NULL) return -1;
     size_t buffer_pos = 0;
+    uint8_t * current_buffer = (uint8_t *) malloc(buffer_size);
+    if (!current_buffer) return -1;
+
     while (1) {
         ssize_t count = read(
             fd, current_buffer + buffer_pos, buffer_size - buffer_pos
         );
-        if (count < 0) break;
+
+        if (count < 0) break;  // A read error happened, so just fail immediately.
+
         if (count == 0) {
-            uint8_t * return_buffer = (uint8_t *) realloc(current_buffer, buffer_pos);
-            if (return_buffer == NULL) break;
-            *buffer = return_buffer;
+            // Nothing more left to read. We downsize the buffer to fit the
+            // data exactly, unless no data was read at all, in which case we
+            // skip the downsizing.
+
+            if (buffer_pos != 0) {
+                current_buffer = (uint8_t *) realloc(current_buffer, buffer_pos);
+                if (!current_buffer) break;
+            }
+
+            // The read was successful so we return the allocated buffer.
+            *buffer = current_buffer;
             return buffer_pos;
         }
+
         buffer_pos += count;
+
+        // We've reached capacity, so enlarge the buffer.
         if (buffer_pos == buffer_size) {
             buffer_size *= 2;
             uint8_t * new_buffer = (uint8_t *) realloc(current_buffer, buffer_size);
-            if (new_buffer == NULL) break;
+            if (!new_buffer) break;
             current_buffer = new_buffer;
         }
     }
+
     free(current_buffer);
     return -1;
 }
@@ -62,13 +77,12 @@ size_t check_error(
 ) {
     if (value == olm_error()) {
         const char * olm_message = f(object);
-        ssize_t ignored;
-        ignored = write(STDERR_FILENO, message, strlen(message));
-        ignored = write(STDERR_FILENO, ": ", 2);
-        ignored = write(STDERR_FILENO, olm_message, strlen(olm_message));
-        ignored = write(STDERR_FILENO, "\n", 1);
+        (void)write(STDERR_FILENO, message, strlen(message));
+        (void)write(STDERR_FILENO, ": ", 2);
+        (void)write(STDERR_FILENO, olm_message, strlen(olm_message));
+        (void)write(STDERR_FILENO, "\n", 1);
+
         exit(2);
-        return ignored;
     }
     return value;
 }

fuzzing/start_fuzzers.sh

@@ -0,0 +1,118 @@
+#!/usr/bin/bash
+
+# Needs to be started in tmux.
+
+script_dir() {
+    dirname "$(readlink -f "$0")"
+}
+
+fuzzer_dir() {
+    printf '%s/fuzzers\n' "$(script_dir)"
+}
+
+fuzzer_list() {
+    find "$(fuzzer_dir)" -maxdepth 1 -type f \( -name '*.cpp' -or -name '*.c' \) -printf '%P\n' \
+      | while read -r fuzzer; do
+        fuzzer="${fuzzer#fuzz_}"
+        printf '%s\n' "${fuzzer%.c*}"
+    done
+}
+
+usage() {
+    printf '%s: HARNESS FUZZER\n\n' "$(basename "$0")"
+    printf '    HARNESS ∈ {\n'
+    # We want word-splitting here so that each fuzzer ends up as a separate
+    # argument.
+    # shellcheck disable=SC2046
+    printf '%30s,\n' $(fuzzer_list | tr '\n' ' ')
+    printf '    }\n'
+    printf '    FUZZER ∈ {afl, afl++}\n'
+}
+
+if [[ $# -ne 2 ]]; then
+    usage
+    exit 1
+fi
+
+case "$2" in
+    afl++)
+        export AFL_PATH=/home/dkasak/code/projects/afl/afl++
+        export AFL_AUTORESUME=1
+        AFL_ARGS_FUZZER0="-D"
+        AFL_ARGS_FUZZER1="-L 0"
+        AFL_ARGS_FUZZER2="-p rare"
+        AFL_ARGS_FUZZER3="-p fast"
+        AFL_ARGS_FUZZER4="-p exploit"
+        AFL_ARGS_FUZZER5="-p explore"
+        ;;
+    afl)
+        export AFL_PATH=/usr/bin
+        ;;
+    *)
+        printf 'Unknown fuzzer: %s\n' "$2"
+        exit 1
+        ;;
+esac
+
+export AFL=$AFL_PATH/afl-fuzz
+export AFL_TMPDIR=/tmp
+
+case "$1" in
+    group_decrypt)
+        FUZZER_ARG1="fuzzing/$1/pickled-inbound-group-session.txt"
+        ;;
+    decrypt)
+        FUZZER_ARG1="fuzzing/$1/pickled-session.txt"
+        FUZZER_ARG2="1"
+        ;;
+    decode_message)
+        ;;
+    unpickle_session)
+        ;;
+    unpickle_account)
+        ;;
+    unpickle_account_test)
+        ;;
+    unpickle_megolm_outbound)
+        ;;
+    *)
+        printf 'Unknown harness: %s\n' "$1"
+        exit 1
+        ;;
+esac
+
+cd "$(script_dir)" || exit 1
+
+# Fuzzer args are deliberately not quoted below so that word-splitting happens.
+# This is used so that they expand into nothing in cases where they are missing
+# or to expand into multiple arguments from a string definition.
+
+# shellcheck disable=SC2086
+tmux new-window -d -n "M" -- \
+    "$AFL" -i "corpora/$1/in" -o "corpora/$1/out" -M i0 "$AFL_ARGS_FUZZER0" \
+            -- "../build/fuzzers/fuzz_$1" $FUZZER_ARG1 $FUZZER_ARG2
+
+# shellcheck disable=SC2086
+tmux new-window -d -n "S1" -- \
+    "$AFL" -i "corpora/$1/in" -o "corpora/$1/out" -S i1 "$AFL_ARGS_FUZZER1" \
+            -- "../build/fuzzers/fuzz_$1" $FUZZER_ARG1 $FUZZER_ARG2
+
+# shellcheck disable=SC2086
+tmux new-window -d -n "S2" -- \
+    "$AFL" -i "corpora/$1/in" -o "corpora/$1/out" -S i2 $AFL_ARGS_FUZZER2 \
+            -- "../build/fuzzers/fuzz_$1" $FUZZER_ARG1 $FUZZER_ARG2
+
+# shellcheck disable=SC2086
+tmux new-window -d -n "S3" -- \
+    "$AFL" -i "corpora/$1/in" -o "corpora/$1/out" -S i3 $AFL_ARGS_FUZZER3 \
+            -- "../build/fuzzers/fuzz_$1" $FUZZER_ARG1 $FUZZER_ARG2
+
+# shellcheck disable=SC2086
+tmux new-window -d -n "S4" -- \
+    "$AFL" -i "corpora/$1/in" -o "corpora/$1/out" -S i4 $AFL_ARGS_FUZZER4 \
+            -- "../build/fuzzers/fuzz_$1_asan" $FUZZER_ARG1 $FUZZER_ARG2
+
+# shellcheck disable=SC2086
+tmux new-window -d -n "S5" -- \
+    "$AFL" -i "corpora/$1/in" -o "corpora/$1/out" -S i5 $AFL_ARGS_FUZZER5 \
+            -- "../build/fuzzers/fuzz_$1" $FUZZER_ARG1 $FUZZER_ARG2

gitlab-math.lua

@@ -0,0 +1,17 @@
+function Math(el)
+    if el.mathtype == "InlineMath" then
+        if el.text:sub(1,1) == '`' and el.text:sub(#el.text) == '`' then
+            local text = el.text:sub(2,#el.text-1)
+            return pandoc.Math(el.mathtype, text)
+        else
+            local cont = pandoc.read(el.text)
+            return { pandoc.Str("$") } .. cont.blocks[1].content .. { pandoc.Str("$") }
+        end
+    end
+end
+
+function CodeBlock(el)
+    if el.classes[1] == "math" then
+        return pandoc.Para({ pandoc.Math("DisplayMath", el.text) })
+    end
+end

include/olm/account.hh

@@ -43,13 +43,14 @@ struct Account {
     Account();
     IdentityKeys identity_keys;
     List<OneTimeKey, MAX_ONE_TIME_KEYS> one_time_keys;
+    std::uint8_t num_fallback_keys;
     OneTimeKey current_fallback_key;
     OneTimeKey prev_fallback_key;
     std::uint32_t next_one_time_key_id;
     OlmErrorCode last_error;
 
     /** Number of random bytes needed to create a new account */
-    std::size_t new_account_random_length();
+    std::size_t new_account_random_length() const;
 
     /** Create a new account. Returns std::size_t(-1) on error. If the number of
      * random bytes is too small then last_error will be NOT_ENOUGH_RANDOM */
@@ -58,7 +59,7 @@ struct Account {
     );
 
     /** Number of bytes needed to output the identity keys for this account */
-    std::size_t get_identity_json_length();
+    std::size_t get_identity_json_length() const;
 
     /** Output the identity keys for this account as JSON in the following
      * format:
@@ -77,7 +78,7 @@ struct Account {
     /**
      * The length of an ed25519 signature in bytes.
      */
-    std::size_t signature_length();
+    std::size_t signature_length() const;
 
     /**
      * Signs a message with the ed25519 key for this account.
@@ -88,7 +89,7 @@ struct Account {
     );
 
     /** Number of bytes needed to output the one time keys for this account */
-    std::size_t get_one_time_keys_json_length();
+    std::size_t get_one_time_keys_json_length() const;
 
     /** Output the one time keys that haven't been published yet as JSON:
      *
@@ -106,18 +107,20 @@ struct Account {
         std::uint8_t * one_time_json, std::size_t one_time_json_length
     );
 
-    /** Mark the current list of one_time_keys as being published. They
-     * will no longer be returned by get_one_time_keys_json_length(). */
+    /** Mark the current list of one_time_keys and the current fallback key as
+     * being published. The current one time keys will no longer be returned by
+     * get_one_time_keys_json() and the current fallback key will no longer be
+     * returned by get_unpublished_fallback_key_json(). */
     std::size_t mark_keys_as_published();
 
     /** The largest number of one time keys this account can store. */
-    std::size_t max_number_of_one_time_keys();
+    std::size_t max_number_of_one_time_keys() const;
 
     /** The number of random bytes needed to generate a given number of new one
      * time keys. */
     std::size_t generate_one_time_keys_random_length(
         std::size_t number_of_keys
-    );
+    ) const;
 
     /** Generates a number of new one time keys. If the total number of keys
      * stored by this account exceeds max_number_of_one_time_keys() then the
@@ -129,7 +132,7 @@ struct Account {
     );
 
     /** The number of random bytes needed to generate a fallback key. */
-    std::size_t generate_fallback_key_random_length();
+    std::size_t generate_fallback_key_random_length() const;
 
     /** Generates a new fallback key. Returns std::size_t(-1) on error. If the
      * number of random bytes is too small then last_error will be
@@ -138,8 +141,17 @@ struct Account {
         std::uint8_t const * random, std::size_t random_length
     );
 
-    /** Number of bytes needed to output the one time keys for this account */
-    std::size_t get_fallback_key_json_length();
+    /** Number of bytes needed to output the fallback keys for this account */
+    std::size_t get_fallback_key_json_length() const;
+
+    /** Deprecated: use get_unpublished_fallback_key_json instead */
+    std::size_t get_fallback_key_json(
+        std::uint8_t * fallback_json, std::size_t fallback_json_length
+    );
+
+    /** Number of bytes needed to output the unpublished fallback keys for this
+     * account */
+    std::size_t get_unpublished_fallback_key_json_length() const;
 
     /** Output the fallback key as JSON:
      *
@@ -150,13 +162,18 @@ struct Account {
      *  ]
      *  }
      *
+     * if there is a fallback key and it has not been published yet.
+     *
      * Returns the size of the JSON written or std::size_t(-1) on error.
      * If the buffer is too small last_error will be OUTPUT_BUFFER_TOO_SMALL.
      */
-    std::size_t get_fallback_key_json(
+    std::size_t get_unpublished_fallback_key_json(
         std::uint8_t * fallback_json, std::size_t fallback_json_length
     );
 
+    /** Forget about the old fallback key */
+    void forget_old_fallback_key();
+
     /** Lookup a one time key with the given public key */
     OneTimeKey const * lookup_key(
         _olm_curve25519_public_key const & public_key

include/olm/base64.h

@@ -22,6 +22,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -30,7 +34,7 @@ extern "C" {
 /**
  * The number of bytes of unpadded base64 needed to encode a length of input.
  */
-size_t _olm_encode_base64_length(
+OLM_EXPORT size_t _olm_encode_base64_length(
     size_t input_length
 );
 
@@ -42,7 +46,7 @@ size_t _olm_encode_base64_length(
  *
  * Returns number of bytes encoded
  */
-size_t _olm_encode_base64(
+OLM_EXPORT size_t _olm_encode_base64(
     uint8_t const * input, size_t input_length,
     uint8_t * output
 );
@@ -51,7 +55,7 @@ size_t _olm_encode_base64(
  * The number of bytes of raw data a length of unpadded base64 will encode to.
  * Returns size_t(-1) if the length is not a valid length for base64.
  */
-size_t _olm_decode_base64_length(
+OLM_EXPORT size_t _olm_decode_base64_length(
     size_t input_length
 );
 
@@ -63,7 +67,7 @@ size_t _olm_decode_base64_length(
  *
  * Returns number of bytes decoded
  */
-size_t _olm_decode_base64(
+OLM_EXPORT size_t _olm_decode_base64(
     uint8_t const * input, size_t input_length,
     uint8_t * output
 );

include/olm/base64.hh

@@ -18,12 +18,16 @@
 #include <cstddef>
 #include <cstdint>
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 namespace olm {
 
 /**
  * The number of bytes of unpadded base64 needed to encode a length of input.
  */
-std::size_t encode_base64_length(
+OLM_EXPORT std::size_t encode_base64_length(
     std::size_t input_length
 );
 
@@ -33,7 +37,7 @@ std::size_t encode_base64_length(
  * The input can overlap with the last three quarters of the output buffer.
  * That is, the input pointer may be output + output_length - input_length.
  */
-std::uint8_t * encode_base64(
+OLM_EXPORT std::uint8_t * encode_base64(
     std::uint8_t const * input, std::size_t input_length,
     std::uint8_t * output
 );
@@ -42,7 +46,7 @@ std::uint8_t * encode_base64(
  * The number of bytes of raw data a length of unpadded base64 will encode to.
  * Returns std::size_t(-1) if the length is not a valid length for base64.
  */
-std::size_t decode_base64_length(
+OLM_EXPORT std::size_t decode_base64_length(
     std::size_t input_length
 );
 
@@ -51,8 +55,12 @@ std::size_t decode_base64_length(
  * Writes decode_base64_length(input_length) bytes to the output buffer.
  * The output can overlap with the first three quarters of the input buffer.
  * That is, the input pointers and output pointer may be the same.
+ *
+ * Returns the number of bytes of raw data the base64 input decoded to. If the
+ * input length supplied is not a valid length for base64, returns
+ * std::size_t(-1) and does not decode.
  */
-std::uint8_t const * decode_base64(
+OLM_EXPORT std::size_t decode_base64(
     std::uint8_t const * input, std::size_t input_length,
     std::uint8_t * output
 );

include/olm/cipher.h

@@ -19,6 +19,10 @@
 #include <stdint.h>
 #include <stdlib.h>
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -111,7 +115,7 @@ struct _olm_cipher_aes_sha_256 {
     size_t kdf_info_length;
 };
 
-extern const struct _olm_cipher_ops _olm_cipher_aes_sha_256_ops;
+OLM_EXPORT extern const struct _olm_cipher_ops _olm_cipher_aes_sha_256_ops;
 
 /**
  * get an initializer for an instance of struct _olm_cipher_aes_sha_256.

include/olm/crypto.h

@@ -20,6 +20,10 @@
 #ifndef OLM_CRYPTO_H_
 #define OLM_CRYPTO_H_
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 #include <stdint.h>
 #include <stdlib.h>
 
@@ -94,13 +98,13 @@ struct _olm_ed25519_key_pair {
 
 
 /** The length of output the aes_encrypt_cbc function will write */
-size_t _olm_crypto_aes_encrypt_cbc_length(
+OLM_EXPORT size_t _olm_crypto_aes_encrypt_cbc_length(
     size_t input_length
 );
 
 /** Encrypts the input using AES256 in CBC mode with PKCS#7 padding.
  * The output buffer must be big enough to hold the output including padding */
-void _olm_crypto_aes_encrypt_cbc(
+OLM_EXPORT void _olm_crypto_aes_encrypt_cbc(
     const struct _olm_aes256_key *key,
     const struct _olm_aes256_iv *iv,
     const uint8_t *input, size_t input_length,
@@ -111,7 +115,7 @@ void _olm_crypto_aes_encrypt_cbc(
  * least the same size as the input buffer. Returns the length of the plaintext
  * without padding on success or std::size_t(-1) if the padding is invalid.
  */
-size_t _olm_crypto_aes_decrypt_cbc(
+OLM_EXPORT size_t _olm_crypto_aes_decrypt_cbc(
     const struct _olm_aes256_key *key,
     const struct _olm_aes256_iv *iv,
     uint8_t const * input, size_t input_length,
@@ -121,7 +125,7 @@ size_t _olm_crypto_aes_decrypt_cbc(
 
 /** Computes SHA-256 of the input. The output buffer must be a least
  * SHA256_OUTPUT_LENGTH (32) bytes long. */
-void _olm_crypto_sha256(
+OLM_EXPORT void _olm_crypto_sha256(
     uint8_t const * input, size_t input_length,
     uint8_t * output
 );
@@ -130,7 +134,7 @@ void _olm_crypto_sha256(
  * http://tools.ietf.org/html/rfc2104
  * Computes HMAC-SHA-256 of the input for the key. The output buffer must
  * be at least SHA256_OUTPUT_LENGTH (32) bytes long. */
-void _olm_crypto_hmac_sha256(
+OLM_EXPORT void _olm_crypto_hmac_sha256(
     uint8_t const * key, size_t key_length,
     uint8_t const * input, size_t input_length,
     uint8_t * output
@@ -140,7 +144,7 @@ void _olm_crypto_hmac_sha256(
 /** HMAC-based Key Derivation Function (HKDF)
  * https://tools.ietf.org/html/rfc5869
  * Derives key material from the input bytes. */
-void _olm_crypto_hkdf_sha256(
+OLM_EXPORT void _olm_crypto_hkdf_sha256(
     uint8_t const * input, size_t input_length,
     uint8_t const * info, size_t info_length,
     uint8_t const * salt, size_t salt_length,
@@ -151,7 +155,7 @@ void _olm_crypto_hkdf_sha256(
 /** Generate a curve25519 key pair
  * random_32_bytes should be CURVE25519_RANDOM_LENGTH (32) bytes long.
  */
-void _olm_crypto_curve25519_generate_key(
+OLM_EXPORT void _olm_crypto_curve25519_generate_key(
     uint8_t const * random_32_bytes,
     struct _olm_curve25519_key_pair *output
 );
@@ -160,7 +164,7 @@ void _olm_crypto_curve25519_generate_key(
 /** Create a shared secret using our private key and their public key.
  * The output buffer must be at least CURVE25519_SHARED_SECRET_LENGTH (32) bytes long.
  */
-void _olm_crypto_curve25519_shared_secret(
+OLM_EXPORT void _olm_crypto_curve25519_shared_secret(
     const struct _olm_curve25519_key_pair *our_key,
     const struct _olm_curve25519_public_key *their_key,
     uint8_t * output
@@ -169,7 +173,7 @@ void _olm_crypto_curve25519_shared_secret(
 /** Generate an ed25519 key pair
  * random_32_bytes should be ED25519_RANDOM_LENGTH (32) bytes long.
  */
-void _olm_crypto_ed25519_generate_key(
+OLM_EXPORT void _olm_crypto_ed25519_generate_key(
     uint8_t const * random_bytes,
     struct _olm_ed25519_key_pair *output
 );
@@ -178,7 +182,7 @@ void _olm_crypto_ed25519_generate_key(
  *
  * The output buffer must be at least ED25519_SIGNATURE_LENGTH (64) bytes
  * long. */
-void _olm_crypto_ed25519_sign(
+OLM_EXPORT void _olm_crypto_ed25519_sign(
     const struct _olm_ed25519_key_pair *our_key,
     const uint8_t * message, size_t message_length,
     uint8_t * output
@@ -187,7 +191,7 @@ void _olm_crypto_ed25519_sign(
 /** Verify an ed25519 signature
  * The signature input buffer must be ED25519_SIGNATURE_LENGTH (64) bytes long.
  * Returns non-zero if the signature is valid. */
-int _olm_crypto_ed25519_verify(
+OLM_EXPORT int _olm_crypto_ed25519_verify(
     const struct _olm_ed25519_public_key *their_key,
     const uint8_t * message, size_t message_length,
     const uint8_t * signature

include/olm/error.h

@@ -15,6 +15,8 @@
 #ifndef OLM_ERROR_H_
 #define OLM_ERROR_H_
 
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -58,12 +60,18 @@ enum OlmErrorCode {
      */
     OLM_SAS_THEIR_KEY_NOT_SET = 16,
 
+    /**
+     * The pickled object was successfully decoded, but the unpickling still failed
+     * because it had some extraneous junk data at the end.
+     */
+    OLM_PICKLE_EXTRA_DATA = 17,
+
     /* remember to update the list of string constants in error.c when updating
      * this list. */
 };
 
 /** get a string representation of the given error code. */
-const char * _olm_error_to_string(enum OlmErrorCode error);
+OLM_EXPORT const char * _olm_error_to_string(enum OlmErrorCode error);
 
 #ifdef __cplusplus
 } // extern "C"

include/olm/inbound_group_session.h

@@ -18,6 +18,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include "olm/error.h"
+
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -25,31 +29,38 @@ extern "C" {
 typedef struct OlmInboundGroupSession OlmInboundGroupSession;
 
 /** get the size of an inbound group session, in bytes. */
-size_t olm_inbound_group_session_size(void);
+OLM_EXPORT size_t olm_inbound_group_session_size(void);
 
 /**
  * Initialise an inbound group session object using the supplied memory
  * The supplied memory should be at least olm_inbound_group_session_size()
  * bytes.
  */
-OlmInboundGroupSession * olm_inbound_group_session(
+OLM_EXPORT OlmInboundGroupSession * olm_inbound_group_session(
     void *memory
 );
 
 /**
  * A null terminated string describing the most recent error to happen to a
  * group session */
-const char *olm_inbound_group_session_last_error(
+OLM_EXPORT const char *olm_inbound_group_session_last_error(
+    const OlmInboundGroupSession *session
+);
+
+/**
+ * An error code describing the most recent error to happen to a group
+ * session */
+OLM_EXPORT enum OlmErrorCode olm_inbound_group_session_last_error_code(
     const OlmInboundGroupSession *session
 );
 
 /** Clears the memory used to back this group session */
-size_t olm_clear_inbound_group_session(
+OLM_EXPORT size_t olm_clear_inbound_group_session(
     OlmInboundGroupSession *session
 );
 
 /** Returns the number of bytes needed to store an inbound group session */
-size_t olm_pickle_inbound_group_session_length(
+OLM_EXPORT size_t olm_pickle_inbound_group_session_length(
     const OlmInboundGroupSession *session
 );
 
@@ -61,7 +72,7 @@ size_t olm_pickle_inbound_group_session_length(
  * is smaller than olm_pickle_inbound_group_session_length() then
  * olm_inbound_group_session_last_error() will be "OUTPUT_BUFFER_TOO_SMALL"
  */
-size_t olm_pickle_inbound_group_session(
+OLM_EXPORT size_t olm_pickle_inbound_group_session(
     OlmInboundGroupSession *session,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -77,7 +88,7 @@ size_t olm_pickle_inbound_group_session(
  * olm_inbound_group_session_last_error() will be "INVALID_BASE64". The input
  * pickled buffer is destroyed
  */
-size_t olm_unpickle_inbound_group_session(
+OLM_EXPORT size_t olm_unpickle_inbound_group_session(
     OlmInboundGroupSession *session,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -94,7 +105,7 @@ size_t olm_unpickle_inbound_group_session(
  *  * OLM_INVALID_BASE64  if the session_key is not valid base64
  *  * OLM_BAD_SESSION_KEY if the session_key is invalid
  */
-size_t olm_init_inbound_group_session(
+OLM_EXPORT size_t olm_init_inbound_group_session(
     OlmInboundGroupSession *session,
     /* base64-encoded keys */
     uint8_t const * session_key, size_t session_key_length
@@ -109,7 +120,7 @@ size_t olm_init_inbound_group_session(
  *  * OLM_INVALID_BASE64  if the session_key is not valid base64
  *  * OLM_BAD_SESSION_KEY if the session_key is invalid
  */
-size_t olm_import_inbound_group_session(
+OLM_EXPORT size_t olm_import_inbound_group_session(
     OlmInboundGroupSession *session,
     /* base64-encoded keys; note that it will be overwritten with the base64-decoded
        data. */
@@ -126,7 +137,7 @@ size_t olm_import_inbound_group_session(
  *
  * Returns olm_error() on failure.
  */
-size_t olm_group_decrypt_max_plaintext_length(
+OLM_EXPORT size_t olm_group_decrypt_max_plaintext_length(
     OlmInboundGroupSession *session,
     uint8_t * message, size_t message_length
 );
@@ -150,7 +161,7 @@ size_t olm_group_decrypt_max_plaintext_length(
  *     message's index (ie, it was sent before the session key was shared with
  *     us)
  */
-size_t olm_group_decrypt(
+OLM_EXPORT size_t olm_group_decrypt(
     OlmInboundGroupSession *session,
 
     /* input; note that it will be overwritten with the base64-decoded
@@ -166,7 +177,7 @@ size_t olm_group_decrypt(
 /**
  * Get the number of bytes returned by olm_inbound_group_session_id()
  */
-size_t olm_inbound_group_session_id_length(
+OLM_EXPORT size_t olm_inbound_group_session_id_length(
     const OlmInboundGroupSession *session
 );
 
@@ -178,7 +189,7 @@ size_t olm_inbound_group_session_id_length(
  * last_error will be OUTPUT_BUFFER_TOO_SMALL if the id buffer was too
  * small.
  */
-size_t olm_inbound_group_session_id(
+OLM_EXPORT size_t olm_inbound_group_session_id(
     OlmInboundGroupSession *session,
     uint8_t * id, size_t id_length
 );
@@ -186,7 +197,7 @@ size_t olm_inbound_group_session_id(
 /**
  * Get the first message index we know how to decrypt.
  */
-uint32_t olm_inbound_group_session_first_known_index(
+OLM_EXPORT uint32_t olm_inbound_group_session_first_known_index(
     const OlmInboundGroupSession *session
 );
 
@@ -199,14 +210,14 @@ uint32_t olm_inbound_group_session_first_known_index(
  *
  * This is mainly intended for the unit tests, currently.
  */
-int olm_inbound_group_session_is_verified(
+OLM_EXPORT int olm_inbound_group_session_is_verified(
     const OlmInboundGroupSession *session
 );
 
 /**
  * Get the number of bytes returned by olm_export_inbound_group_session()
  */
-size_t olm_export_inbound_group_session_length(
+OLM_EXPORT size_t olm_export_inbound_group_session_length(
     const OlmInboundGroupSession *session
 );
 
@@ -222,7 +233,7 @@ size_t olm_export_inbound_group_session_length(
  *     given index (ie, it was sent before the session key was shared with
  *     us)
  */
-size_t olm_export_inbound_group_session(
+OLM_EXPORT size_t olm_export_inbound_group_session(
     OlmInboundGroupSession *session,
     uint8_t * key, size_t key_length, uint32_t message_index
 );

include/olm/list.hh

@@ -99,9 +99,9 @@ public:
             return *this;
         }
         T * this_pos = _data;
-        T * const other_pos = other._data;
+        const T * other_pos = other._data;
         while (other_pos != other._end) {
-            *this_pos = *other;
+            *this_pos = *other_pos;
             ++this_pos;
             ++other_pos;
         }

include/olm/megolm.h

@@ -23,6 +23,10 @@
 #include <stdint.h>
 #include <stdlib.h>
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -59,25 +63,25 @@ extern const struct _olm_cipher *megolm_cipher;
  * initialize the megolm ratchet. random_data should be at least
  * MEGOLM_RATCHET_LENGTH bytes of randomness.
  */
-void megolm_init(Megolm *megolm, uint8_t const *random_data, uint32_t counter);
+OLM_EXPORT void megolm_init(Megolm *megolm, uint8_t const *random_data, uint32_t counter);
 
 /** Returns the number of bytes needed to store a megolm */
-size_t megolm_pickle_length(const Megolm *megolm);
+OLM_EXPORT size_t megolm_pickle_length(const Megolm *megolm);
 
 /**
  * Pickle the megolm. Returns a pointer to the next free space in the buffer.
  */
-uint8_t * megolm_pickle(const Megolm *megolm, uint8_t *pos);
+OLM_EXPORT uint8_t * megolm_pickle(const Megolm *megolm, uint8_t *pos);
 
 /**
  * Unpickle the megolm. Returns a pointer to the next item in the buffer.
  */
-const uint8_t * megolm_unpickle(Megolm *megolm, const uint8_t *pos,
+OLM_EXPORT const uint8_t * megolm_unpickle(Megolm *megolm, const uint8_t *pos,
                                 const uint8_t *end);
 
 
 /** advance the ratchet by one step */
-void megolm_advance(Megolm *megolm);
+OLM_EXPORT void megolm_advance(Megolm *megolm);
 
 /**
  * get the key data in the ratchet. The returned data is
@@ -86,7 +90,7 @@ void megolm_advance(Megolm *megolm);
 #define megolm_get_data(megolm) ((const uint8_t *)((megolm)->data))
 
 /** advance the ratchet to a given count */
-void megolm_advance_to(Megolm *megolm, uint32_t advance_to);
+OLM_EXPORT void megolm_advance_to(Megolm *megolm, uint32_t advance_to);
 
 #ifdef __cplusplus
 } // extern "C"

include/olm/message.h

@@ -27,6 +27,10 @@
 #include <stdint.h>
 #include <stddef.h>
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -34,7 +38,7 @@ extern "C" {
 /**
  * The length of the buffer needed to hold a group message.
  */
-size_t _olm_encode_group_message_length(
+OLM_EXPORT size_t _olm_encode_group_message_length(
     uint32_t chain_index,
     size_t ciphertext_length,
     size_t mac_length,
@@ -55,7 +59,7 @@ size_t _olm_encode_group_message_length(
  *
  * Returns the size of the message, up to the MAC.
  */
-size_t _olm_encode_group_message(
+OLM_EXPORT size_t _olm_encode_group_message(
     uint8_t version,
     uint32_t message_index,
     size_t ciphertext_length,
@@ -76,7 +80,7 @@ struct _OlmDecodeGroupMessageResults {
 /**
  * Reads the message headers from the input buffer.
  */
-void _olm_decode_group_message(
+OLM_EXPORT void _olm_decode_group_message(
     const uint8_t *input, size_t input_length,
     size_t mac_length, size_t signature_length,
 

include/olm/message.hh

@@ -27,13 +27,16 @@
 #include <cstddef>
 #include <cstdint>
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
 
 namespace olm {
 
 /**
  * The length of the buffer needed to hold a message.
  */
-std::size_t encode_message_length(
+OLM_EXPORT std::size_t encode_message_length(
     std::uint32_t counter,
     std::size_t ratchet_key_length,
     std::size_t ciphertext_length,
@@ -61,7 +64,7 @@ struct MessageReader {
  * Writes the message headers into the output buffer.
  * Populates the writer struct with pointers into the output buffer.
  */
-void encode_message(
+OLM_EXPORT void encode_message(
     MessageWriter & writer,
     std::uint8_t version,
     std::uint32_t counter,
@@ -75,7 +78,7 @@ void encode_message(
  * Reads the message headers from the input buffer.
  * Populates the reader struct with pointers into the input buffer.
  */
-void decode_message(
+OLM_EXPORT void decode_message(
     MessageReader & reader,
     std::uint8_t const * input, std::size_t input_length,
     std::size_t mac_length

include/olm/olm.h

@@ -19,9 +19,12 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include "olm/error.h"
 #include "olm/inbound_group_session.h"
 #include "olm/outbound_group_session.h"
 
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -36,79 +39,94 @@ typedef struct OlmUtility OlmUtility;
 /** Get the version number of the library.
  * Arguments will be updated if non-null.
  */
-void olm_get_library_version(uint8_t *major, uint8_t *minor, uint8_t *patch);
+OLM_EXPORT void olm_get_library_version(uint8_t *major, uint8_t *minor, uint8_t *patch);
 
 /** The size of an account object in bytes */
-size_t olm_account_size(void);
+OLM_EXPORT size_t olm_account_size(void);
 
 /** The size of a session object in bytes */
-size_t olm_session_size(void);
+OLM_EXPORT size_t olm_session_size(void);
 
 /** The size of a utility object in bytes */
-size_t olm_utility_size(void);
+OLM_EXPORT size_t olm_utility_size(void);
 
 /** Initialise an account object using the supplied memory
  *  The supplied memory must be at least olm_account_size() bytes */
-OlmAccount * olm_account(
+OLM_EXPORT OlmAccount * olm_account(
     void * memory
 );
 
 /** Initialise a session object using the supplied memory
  *  The supplied memory must be at least olm_session_size() bytes */
-OlmSession * olm_session(
+OLM_EXPORT OlmSession * olm_session(
     void * memory
 );
 
 /** Initialise a utility object using the supplied memory
  *  The supplied memory must be at least olm_utility_size() bytes */
-OlmUtility * olm_utility(
+OLM_EXPORT OlmUtility * olm_utility(
     void * memory
 );
 
 /** The value that olm will return from a function if there was an error */
-size_t olm_error(void);
+OLM_EXPORT size_t olm_error(void);
 
 /** A null terminated string describing the most recent error to happen to an
  * account */
-const char * olm_account_last_error(
-    OlmAccount * account
+OLM_EXPORT const char * olm_account_last_error(
+    OlmAccount const * account
+);
+
+/** An error code describing the most recent error to happen to an account */
+OLM_EXPORT enum OlmErrorCode olm_account_last_error_code(
+    OlmAccount const * account
 );
 
 /** A null terminated string describing the most recent error to happen to a
  * session */
-const char * olm_session_last_error(
-    OlmSession * session
+OLM_EXPORT const char * olm_session_last_error(
+    OlmSession const * session
+);
+
+/** An error code describing the most recent error to happen to a session */
+OLM_EXPORT enum OlmErrorCode olm_session_last_error_code(
+    OlmSession const * session
 );
 
 /** A null terminated string describing the most recent error to happen to a
  * utility */
-const char * olm_utility_last_error(
-    OlmUtility * utility
+OLM_EXPORT const char * olm_utility_last_error(
+    OlmUtility const * utility
+);
+
+/** An error code describing the most recent error to happen to a utility */
+OLM_EXPORT enum OlmErrorCode olm_utility_last_error_code(
+    OlmUtility const * utility
 );
 
 /** Clears the memory used to back this account */
-size_t olm_clear_account(
+OLM_EXPORT size_t olm_clear_account(
     OlmAccount * account
 );
 
 /** Clears the memory used to back this session */
-size_t olm_clear_session(
+OLM_EXPORT size_t olm_clear_session(
     OlmSession * session
 );
 
 /** Clears the memory used to back this utility */
-size_t olm_clear_utility(
+OLM_EXPORT size_t olm_clear_utility(
     OlmUtility * utility
 );
 
 /** Returns the number of bytes needed to store an account */
-size_t olm_pickle_account_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_pickle_account_length(
+    OlmAccount const * account
 );
 
 /** Returns the number of bytes needed to store a session */
-size_t olm_pickle_session_length(
-    OlmSession * session
+OLM_EXPORT size_t olm_pickle_session_length(
+    OlmSession const * session
 );
 
 /** Stores an account as a base64 string. Encrypts the account using the
@@ -116,7 +134,7 @@ size_t olm_pickle_session_length(
  * Returns olm_error() on failure. If the pickle output buffer
  * is smaller than olm_pickle_account_length() then
  * olm_account_last_error() will be "OUTPUT_BUFFER_TOO_SMALL" */
-size_t olm_pickle_account(
+OLM_EXPORT size_t olm_pickle_account(
     OlmAccount * account,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -127,7 +145,7 @@ size_t olm_pickle_account(
  * Returns olm_error() on failure. If the pickle output buffer
  * is smaller than olm_pickle_session_length() then
  * olm_session_last_error() will be "OUTPUT_BUFFER_TOO_SMALL" */
-size_t olm_pickle_session(
+OLM_EXPORT size_t olm_pickle_session(
     OlmSession * session,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -139,7 +157,7 @@ size_t olm_pickle_session(
  * will be "BAD_ACCOUNT_KEY". If the base64 couldn't be decoded then
  * olm_account_last_error() will be "INVALID_BASE64". The input pickled
  * buffer is destroyed */
-size_t olm_unpickle_account(
+OLM_EXPORT size_t olm_unpickle_account(
     OlmAccount * account,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -151,57 +169,57 @@ size_t olm_unpickle_account(
  * will be "BAD_ACCOUNT_KEY". If the base64 couldn't be decoded then
  * olm_session_last_error() will be "INVALID_BASE64". The input pickled
  * buffer is destroyed */
-size_t olm_unpickle_session(
+OLM_EXPORT size_t olm_unpickle_session(
     OlmSession * session,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
 );
 
 /** The number of random bytes needed to create an account.*/
-size_t olm_create_account_random_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_create_account_random_length(
+    OlmAccount const * account
 );
 
 /** Creates a new account. Returns olm_error() on failure. If there weren't
  * enough random bytes then olm_account_last_error() will be
  * "NOT_ENOUGH_RANDOM" */
-size_t olm_create_account(
+OLM_EXPORT size_t olm_create_account(
     OlmAccount * account,
     void * random, size_t random_length
 );
 
 /** The size of the output buffer needed to hold the identity keys */
-size_t olm_account_identity_keys_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_account_identity_keys_length(
+    OlmAccount const * account
 );
 
 /** Writes the public parts of the identity keys for the account into the
  * identity_keys output buffer. Returns olm_error() on failure. If the
  * identity_keys buffer was too small then olm_account_last_error() will be
  * "OUTPUT_BUFFER_TOO_SMALL". */
-size_t olm_account_identity_keys(
+OLM_EXPORT size_t olm_account_identity_keys(
     OlmAccount * account,
     void * identity_keys, size_t identity_key_length
 );
 
 
 /** The length of an ed25519 signature encoded as base64. */
-size_t olm_account_signature_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_account_signature_length(
+    OlmAccount const * account
 );
 
 /** Signs a message with the ed25519 key for this account. Returns olm_error()
  * on failure. If the signature buffer was too small then
  * olm_account_last_error() will be "OUTPUT_BUFFER_TOO_SMALL" */
-size_t olm_account_sign(
+OLM_EXPORT size_t olm_account_sign(
     OlmAccount * account,
     void const * message, size_t message_length,
     void * signature, size_t signature_length
 );
 
 /** The size of the output buffer needed to hold the one time keys */
-size_t olm_account_one_time_keys_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_account_one_time_keys_length(
+    OlmAccount const * account
 );
 
 /** Writes the public parts of the unpublished one time keys for the account
@@ -222,25 +240,31 @@ size_t olm_account_one_time_keys_length(
  * <p>
  * If the one_time_keys buffer was too small then olm_account_last_error()
  * will be "OUTPUT_BUFFER_TOO_SMALL". */
-size_t olm_account_one_time_keys(
+OLM_EXPORT size_t olm_account_one_time_keys(
     OlmAccount * account,
     void * one_time_keys, size_t one_time_keys_length
 );
 
-/** Marks the current set of one time keys as being published. */
-size_t olm_account_mark_keys_as_published(
+/** Marks the current set of one time keys and fallback key as being published
+ * Once marked as published, the one time keys will no longer be returned by
+ * olm_account_one_time_keys(), and the fallback key will no longer be returned
+ * by olm_account_unpublished_fallback_key().
+ *
+ * Returns the number of one-time keys that were marked as published.  Note that
+ * this count does not include the fallback key. */
+OLM_EXPORT size_t olm_account_mark_keys_as_published(
     OlmAccount * account
 );
 
 /** The largest number of one time keys this account can store. */
-size_t olm_account_max_number_of_one_time_keys(
-    OlmAccount * account
+OLM_EXPORT size_t olm_account_max_number_of_one_time_keys(
+    OlmAccount const * account
 );
 
 /** The number of random bytes needed to generate a given number of new one
  * time keys. */
-size_t olm_account_generate_one_time_keys_random_length(
-    OlmAccount * account,
+OLM_EXPORT size_t olm_account_generate_one_time_keys_random_length(
+    OlmAccount const * account,
     size_t number_of_keys
 );
 
@@ -248,40 +272,63 @@ size_t olm_account_generate_one_time_keys_random_length(
  * by this account exceeds max_number_of_one_time_keys() then the old keys are
  * discarded. Returns olm_error() on error. If the number of random bytes is
  * too small then olm_account_last_error() will be "NOT_ENOUGH_RANDOM". */
-size_t olm_account_generate_one_time_keys(
+OLM_EXPORT size_t olm_account_generate_one_time_keys(
     OlmAccount * account,
     size_t number_of_keys,
     void * random, size_t random_length
 );
 
 /** The number of random bytes needed to generate a fallback key. */
-size_t olm_account_generate_fallback_key_random_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_account_generate_fallback_key_random_length(
+    OlmAccount const * account
 );
 
 /** Generates a new fallback key. Only one previous fallback key is
  * stored. Returns olm_error() on error. If the number of random bytes is too
  * small then olm_account_last_error() will be "NOT_ENOUGH_RANDOM". */
-size_t olm_account_generate_fallback_key(
+OLM_EXPORT size_t olm_account_generate_fallback_key(
     OlmAccount * account,
     void * random, size_t random_length
 );
 
 /** The number of bytes needed to hold the fallback key as returned by
  * olm_account_fallback_key. */
-size_t olm_account_fallback_key_length(
-    OlmAccount * account
+OLM_EXPORT size_t olm_account_fallback_key_length(
+    OlmAccount const * account
 );
 
-size_t olm_account_fallback_key(
+/** Deprecated: use olm_account_unpublished_fallback_key instead */
+OLM_EXPORT size_t olm_account_fallback_key(
     OlmAccount * account,
     void * fallback_key, size_t fallback_key_size
 );
 
+/** The number of bytes needed to hold the unpublished fallback key as returned
+ * by olm_account_unpublished fallback_key. */
+OLM_EXPORT size_t olm_account_unpublished_fallback_key_length(
+    OlmAccount const * account
+);
+
+/** Returns the fallback key (if present, and if unpublished) into the
+ * fallback_key buffer */
+OLM_EXPORT size_t olm_account_unpublished_fallback_key(
+    OlmAccount * account,
+    void * fallback_key, size_t fallback_key_size
+);
+
+/** Forget about the old fallback key.  This should be called once you are
+ * reasonably certain that you will not receive any more messages that use
+ * the old fallback key (e.g. 5 minutes after the new fallback key has been
+ * published).
+ */
+OLM_EXPORT void olm_account_forget_old_fallback_key(
+    OlmAccount * account
+);
+
 
 /** The number of random bytes needed to create an outbound session */
-size_t olm_create_outbound_session_random_length(
-    OlmSession * session
+OLM_EXPORT size_t olm_create_outbound_session_random_length(
+    OlmSession const * session
 );
 
 /** Creates a new out-bound session for sending messages to a given identity_key
@@ -289,9 +336,9 @@ size_t olm_create_outbound_session_random_length(
  * decoded as base64 then olm_session_last_error() will be "INVALID_BASE64"
  * If there weren't enough random bytes then olm_session_last_error() will
  * be "NOT_ENOUGH_RANDOM". */
-size_t olm_create_outbound_session(
+OLM_EXPORT size_t olm_create_outbound_session(
     OlmSession * session,
-    OlmAccount * account,
+    OlmAccount const * account,
     void const * their_identity_key, size_t their_identity_key_length,
     void const * their_one_time_key, size_t their_one_time_key_length,
     void * random, size_t random_length
@@ -302,24 +349,19 @@ size_t olm_create_outbound_session(
  * couldn't be decoded then olm_session_last_error will be "INVALID_BASE64".
  * If the message was for an unsupported protocol version then
  * olm_session_last_error() will be "BAD_MESSAGE_VERSION". If the message
- * couldn't be decoded then then olm_session_last_error() will be
+ * couldn't be decoded then olm_session_last_error() will be
  * "BAD_MESSAGE_FORMAT". If the message refers to an unknown one time
  * key then olm_session_last_error() will be "BAD_MESSAGE_KEY_ID". */
-size_t olm_create_inbound_session(
+OLM_EXPORT size_t olm_create_inbound_session(
     OlmSession * session,
     OlmAccount * account,
     void * one_time_key_message, size_t message_length
 );
 
-/** Create a new in-bound session for sending/receiving messages from an
- * incoming PRE_KEY message. Returns olm_error() on failure. If the base64
- * couldn't be decoded then olm_session_last_error will be "INVALID_BASE64".
- * If the message was for an unsupported protocol version then
- * olm_session_last_error() will be "BAD_MESSAGE_VERSION". If the message
- * couldn't be decoded then then olm_session_last_error() will be
- * "BAD_MESSAGE_FORMAT". If the message refers to an unknown one time
- * key then olm_session_last_error() will be "BAD_MESSAGE_KEY_ID". */
-size_t olm_create_inbound_session_from(
+/** Same as olm_create_inbound_session, but ensures that the identity key
+ * in the pre-key message matches the expected identity key, supplied via the
+ * `their_identity_key` parameter. Fails early if there is no match. */
+OLM_EXPORT size_t olm_create_inbound_session_from(
     OlmSession * session,
     OlmAccount * account,
     void const * their_identity_key, size_t their_identity_key_length,
@@ -327,27 +369,30 @@ size_t olm_create_inbound_session_from(
 );
 
 /** The length of the buffer needed to return the id for this session. */
-size_t olm_session_id_length(
-    OlmSession * session
+OLM_EXPORT size_t olm_session_id_length(
+    OlmSession const * session
 );
 
 /** An identifier for this session. Will be the same for both ends of the
  * conversation. If the id buffer is too small then olm_session_last_error()
  * will be "OUTPUT_BUFFER_TOO_SMALL". */
-size_t olm_session_id(
+OLM_EXPORT size_t olm_session_id(
     OlmSession * session,
     void * id, size_t id_length
 );
 
-int olm_session_has_received_message(
-    OlmSession *session
+OLM_EXPORT int olm_session_has_received_message(
+    OlmSession const *session
 );
 
 /**
  * Write a null-terminated string describing the internal state of an olm
- * session to the buffer provided for debugging and logging purposes.
+ * session to the buffer provided for debugging and logging purposes. If the
+ * buffer is not large enough to hold the entire string, it will be truncated
+ * and will end with "...".  A buffer length of 600 will be enough to hold any
+ * output.
  */
-void olm_session_describe(OlmSession * session, char *buf, size_t buflen);
+OLM_EXPORT void olm_session_describe(OlmSession * session, char *buf, size_t buflen);
 
 /** Checks if the PRE_KEY message is for this in-bound session. This can happen
  * if multiple messages are sent to this account before this account sends a
@@ -358,7 +403,7 @@ void olm_session_describe(OlmSession * session, char *buf, size_t buflen);
  * unsupported protocol version then olm_session_last_error() will be
  * "BAD_MESSAGE_VERSION". If the message couldn't be decoded then then
  * olm_session_last_error() will be "BAD_MESSAGE_FORMAT". */
-size_t olm_matches_inbound_session(
+OLM_EXPORT size_t olm_matches_inbound_session(
     OlmSession * session,
     void * one_time_key_message, size_t message_length
 );
@@ -372,7 +417,7 @@ size_t olm_matches_inbound_session(
  * unsupported protocol version then olm_session_last_error() will be
  * "BAD_MESSAGE_VERSION". If the message couldn't be decoded then then
  * olm_session_last_error() will be "BAD_MESSAGE_FORMAT". */
-size_t olm_matches_inbound_session_from(
+OLM_EXPORT size_t olm_matches_inbound_session_from(
     OlmSession * session,
     void const * their_identity_key, size_t their_identity_key_length,
     void * one_time_key_message, size_t message_length
@@ -381,7 +426,7 @@ size_t olm_matches_inbound_session_from(
 /** Removes the one time keys that the session used from the account. Returns
  * olm_error() on failure. If the account doesn't have any matching one time
  * keys then olm_account_last_error() will be "BAD_MESSAGE_KEY_ID". */
-size_t olm_remove_one_time_keys(
+OLM_EXPORT size_t olm_remove_one_time_keys(
     OlmAccount * account,
     OlmSession * session
 );
@@ -390,19 +435,19 @@ size_t olm_remove_one_time_keys(
  * OLM_MESSAGE_TYPE_PRE_KEY if the message will be a PRE_KEY message.
  * Returns OLM_MESSAGE_TYPE_MESSAGE if the message will be a normal message.
  * Returns olm_error on failure. */
-size_t olm_encrypt_message_type(
-    OlmSession * session
+OLM_EXPORT size_t olm_encrypt_message_type(
+    OlmSession const * session
 );
 
 /** The number of random bytes needed to encrypt the next message. */
-size_t olm_encrypt_random_length(
-    OlmSession * session
+OLM_EXPORT size_t olm_encrypt_random_length(
+    OlmSession const * session
 );
 
 /** The size of the next message in bytes for the given number of plain-text
  * bytes. */
-size_t olm_encrypt_message_length(
-    OlmSession * session,
+OLM_EXPORT size_t olm_encrypt_message_length(
+    OlmSession const * session,
     size_t plaintext_length
 );
 
@@ -412,7 +457,7 @@ size_t olm_encrypt_message_length(
  * olm_session_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". If there
  * weren't enough random bytes then olm_session_last_error() will be
  * "NOT_ENOUGH_RANDOM". */
-size_t olm_encrypt(
+OLM_EXPORT size_t olm_encrypt(
     OlmSession * session,
     void const * plaintext, size_t plaintext_length,
     void * random, size_t random_length,
@@ -427,7 +472,7 @@ size_t olm_encrypt(
  * protocol then olm_session_last_error() will be "BAD_MESSAGE_VERSION".
  * If the message couldn't be decoded then olm_session_last_error() will be
  * "BAD_MESSAGE_FORMAT". */
-size_t olm_decrypt_max_plaintext_length(
+OLM_EXPORT size_t olm_decrypt_max_plaintext_length(
     OlmSession * session,
     size_t message_type,
     void * message, size_t message_length
@@ -444,7 +489,7 @@ size_t olm_decrypt_max_plaintext_length(
  * olm_session_last_error() will be BAD_MESSAGE_FORMAT".
  * If the MAC on the message was invalid then olm_session_last_error() will
  * be "BAD_MESSAGE_MAC". */
-size_t olm_decrypt(
+OLM_EXPORT size_t olm_decrypt(
     OlmSession * session,
     size_t message_type,
     void * message, size_t message_length,
@@ -452,14 +497,14 @@ size_t olm_decrypt(
 );
 
 /** The length of the buffer needed to hold the SHA-256 hash. */
-size_t olm_sha256_length(
-   OlmUtility * utility
+OLM_EXPORT size_t olm_sha256_length(
+   OlmUtility const * utility
 );
 
 /** Calculates the SHA-256 hash of the input and encodes it as base64. If the
  * output buffer is smaller than olm_sha256_length() then
  * olm_utility_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". */
-size_t olm_sha256(
+OLM_EXPORT size_t olm_sha256(
     OlmUtility * utility,
     void const * input, size_t input_length,
     void * output, size_t output_length
@@ -468,7 +513,7 @@ size_t olm_sha256(
 /** Verify an ed25519 signature. If the key was too small then
  * olm_utility_last_error() will be "INVALID_BASE64". If the signature was invalid
  * then olm_utility_last_error() will be "BAD_MESSAGE_MAC". */
-size_t olm_ed25519_verify(
+OLM_EXPORT size_t olm_ed25519_verify(
     OlmUtility * utility,
     void const * key, size_t key_length,
     void const * message, size_t message_length,

include/olm/olm_export.h

@@ -0,0 +1,42 @@
+
+#ifndef OLM_EXPORT_H
+#define OLM_EXPORT_H
+
+#ifdef OLM_STATIC_DEFINE
+#  define OLM_EXPORT
+#  define OLM_NO_EXPORT
+#else
+#  ifndef OLM_EXPORT
+#    ifdef olm_EXPORTS
+        /* We are building this library */
+#      define OLM_EXPORT 
+#    else
+        /* We are using this library */
+#      define OLM_EXPORT 
+#    endif
+#  endif
+
+#  ifndef OLM_NO_EXPORT
+#    define OLM_NO_EXPORT 
+#  endif
+#endif
+
+#ifndef OLM_DEPRECATED
+#  define OLM_DEPRECATED __attribute__ ((__deprecated__))
+#endif
+
+#ifndef OLM_DEPRECATED_EXPORT
+#  define OLM_DEPRECATED_EXPORT OLM_EXPORT OLM_DEPRECATED
+#endif
+
+#ifndef OLM_DEPRECATED_NO_EXPORT
+#  define OLM_DEPRECATED_NO_EXPORT OLM_NO_EXPORT OLM_DEPRECATED
+#endif
+
+#if 0 /* DEFINE_NO_DEPRECATED */
+#  ifndef OLM_NO_DEPRECATED
+#    define OLM_NO_DEPRECATED
+#  endif
+#endif
+
+#endif /* OLM_EXPORT_H */

include/olm/outbound_group_session.h

@@ -18,6 +18,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include "olm/error.h"
+
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -25,31 +29,38 @@ extern "C" {
 typedef struct OlmOutboundGroupSession OlmOutboundGroupSession;
 
 /** get the size of an outbound group session, in bytes. */
-size_t olm_outbound_group_session_size(void);
+OLM_EXPORT size_t olm_outbound_group_session_size(void);
 
 /**
  * Initialise an outbound group session object using the supplied memory
  * The supplied memory should be at least olm_outbound_group_session_size()
  * bytes.
  */
-OlmOutboundGroupSession * olm_outbound_group_session(
+OLM_EXPORT OlmOutboundGroupSession * olm_outbound_group_session(
     void *memory
 );
 
 /**
  * A null terminated string describing the most recent error to happen to a
  * group session */
-const char *olm_outbound_group_session_last_error(
+OLM_EXPORT const char *olm_outbound_group_session_last_error(
+    const OlmOutboundGroupSession *session
+);
+
+/**
+ * An error code describing the most recent error to happen to a group
+ * session */
+OLM_EXPORT enum OlmErrorCode olm_outbound_group_session_last_error_code(
     const OlmOutboundGroupSession *session
 );
 
 /** Clears the memory used to back this group session */
-size_t olm_clear_outbound_group_session(
+OLM_EXPORT size_t olm_clear_outbound_group_session(
     OlmOutboundGroupSession *session
 );
 
 /** Returns the number of bytes needed to store an outbound group session */
-size_t olm_pickle_outbound_group_session_length(
+OLM_EXPORT size_t olm_pickle_outbound_group_session_length(
     const OlmOutboundGroupSession *session
 );
 
@@ -61,7 +72,7 @@ size_t olm_pickle_outbound_group_session_length(
  * is smaller than olm_pickle_outbound_group_session_length() then
  * olm_outbound_group_session_last_error() will be "OUTPUT_BUFFER_TOO_SMALL"
  */
-size_t olm_pickle_outbound_group_session(
+OLM_EXPORT size_t olm_pickle_outbound_group_session(
     OlmOutboundGroupSession *session,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -77,7 +88,7 @@ size_t olm_pickle_outbound_group_session(
  * olm_outbound_group_session_last_error() will be "INVALID_BASE64". The input
  * pickled buffer is destroyed
  */
-size_t olm_unpickle_outbound_group_session(
+OLM_EXPORT size_t olm_unpickle_outbound_group_session(
     OlmOutboundGroupSession *session,
     void const * key, size_t key_length,
     void * pickled, size_t pickled_length
@@ -85,7 +96,7 @@ size_t olm_unpickle_outbound_group_session(
 
 
 /** The number of random bytes needed to create an outbound group session */
-size_t olm_init_outbound_group_session_random_length(
+OLM_EXPORT size_t olm_init_outbound_group_session_random_length(
     const OlmOutboundGroupSession *session
 );
 
@@ -94,7 +105,7 @@ size_t olm_init_outbound_group_session_random_length(
  * failure last_error will be set with an error code. The last_error will be
  * NOT_ENOUGH_RANDOM if the number of random bytes was too small.
  */
-size_t olm_init_outbound_group_session(
+OLM_EXPORT size_t olm_init_outbound_group_session(
     OlmOutboundGroupSession *session,
     uint8_t *random, size_t random_length
 );
@@ -102,7 +113,7 @@ size_t olm_init_outbound_group_session(
 /**
  * The number of bytes that will be created by encrypting a message
  */
-size_t olm_group_encrypt_message_length(
+OLM_EXPORT size_t olm_group_encrypt_message_length(
     OlmOutboundGroupSession *session,
     size_t plaintext_length
 );
@@ -113,7 +124,7 @@ size_t olm_group_encrypt_message_length(
  * error code. The last_error will be OUTPUT_BUFFER_TOO_SMALL if the output
  * buffer is too small.
  */
-size_t olm_group_encrypt(
+OLM_EXPORT size_t olm_group_encrypt(
     OlmOutboundGroupSession *session,
     uint8_t const * plaintext, size_t plaintext_length,
     uint8_t * message, size_t message_length
@@ -123,7 +134,7 @@ size_t olm_group_encrypt(
 /**
  * Get the number of bytes returned by olm_outbound_group_session_id()
  */
-size_t olm_outbound_group_session_id_length(
+OLM_EXPORT size_t olm_outbound_group_session_id_length(
     const OlmOutboundGroupSession *session
 );
 
@@ -135,7 +146,7 @@ size_t olm_outbound_group_session_id_length(
  * last_error will be OUTPUT_BUFFER_TOO_SMALL if the id buffer was too
  * small.
  */
-size_t olm_outbound_group_session_id(
+OLM_EXPORT size_t olm_outbound_group_session_id(
     OlmOutboundGroupSession *session,
     uint8_t * id, size_t id_length
 );
@@ -146,14 +157,14 @@ size_t olm_outbound_group_session_id(
  * Each message is sent with an increasing index; this returns the index for
  * the next message.
  */
-uint32_t olm_outbound_group_session_message_index(
+OLM_EXPORT uint32_t olm_outbound_group_session_message_index(
     OlmOutboundGroupSession *session
 );
 
 /**
  * Get the number of bytes returned by olm_outbound_group_session_key()
  */
-size_t olm_outbound_group_session_key_length(
+OLM_EXPORT size_t olm_outbound_group_session_key_length(
     const OlmOutboundGroupSession *session
 );
 
@@ -167,7 +178,7 @@ size_t olm_outbound_group_session_key_length(
  * failure. On failure last_error will be set with an error code. The
  * last_error will be OUTPUT_BUFFER_TOO_SMALL if the buffer was too small.
  */
-size_t olm_outbound_group_session_key(
+OLM_EXPORT size_t olm_outbound_group_session_key(
     OlmOutboundGroupSession *session,
     uint8_t * key, size_t key_length
 );

include/olm/pickle.h

@@ -15,8 +15,25 @@
 #ifndef OLM_PICKLE_H_
 #define OLM_PICKLE_H_
 
+#include <stddef.h>
 #include <stdint.h>
 
+/* Convenience macro for checking the return value of internal unpickling
+ * functions and returning early on failure. */
+#ifndef UNPICKLE_OK
+#define UNPICKLE_OK(x) do { if (!(x)) return NULL; } while(0)
+#endif
+
+/* Convenience macro for failing on corrupted pickles from public
+ * API unpickling functions. */
+#define FAIL_ON_CORRUPTED_PICKLE(pos, session) \
+    do { \
+        if (!pos) { \
+          session->last_error = OLM_CORRUPTED_PICKLE;  \
+          return (size_t)-1; \
+        } \
+    } while(0)
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -59,7 +76,7 @@ uint8_t * _olm_pickle_ed25519_public_key(
 );
 
 /** Unpickle the ed25519 public key. Returns a pointer to the next item in the
- * buffer. */
+ * buffer on success, NULL on error. */
 const uint8_t * _olm_unpickle_ed25519_public_key(
     const uint8_t *pos, const uint8_t *end,
     struct _olm_ed25519_public_key * value
@@ -77,7 +94,7 @@ uint8_t * _olm_pickle_ed25519_key_pair(
 );
 
 /** Unpickle the ed25519 key pair. Returns a pointer to the next item in the
- * buffer. */
+ * buffer on success, NULL on error. */
 const uint8_t * _olm_unpickle_ed25519_key_pair(
     const uint8_t *pos, const uint8_t *end,
     struct _olm_ed25519_key_pair * value

include/olm/pickle.hh

@@ -21,6 +21,12 @@
 #include <cstring>
 #include <cstdint>
 
+/* Convenience macro for checking the return value of internal unpickling
+ * functions and returning early on failure. */
+#ifndef UNPICKLE_OK
+#define UNPICKLE_OK(x) do { if (!(x)) return nullptr; } while(0)
+#endif
+
 namespace olm {
 
 inline std::size_t pickle_length(
@@ -40,6 +46,23 @@ std::uint8_t const * unpickle(
 );
 
 
+inline std::size_t pickle_length(
+    const std::uint8_t & value
+) {
+    return 1;
+}
+
+std::uint8_t * pickle(
+    std::uint8_t * pos,
+    std::uint8_t value
+);
+
+std::uint8_t const * unpickle(
+    std::uint8_t const * pos, std::uint8_t const * end,
+    std::uint8_t & value
+);
+
+
 inline std::size_t pickle_length(
     const bool & value
 ) {
@@ -88,11 +111,21 @@ std::uint8_t const * unpickle(
     olm::List<T, max_size> & list
 ) {
     std::uint32_t size;
+
     pos = unpickle(pos, end, size);
+    if (!pos) {
+        return nullptr;
+    }
+
     while (size-- && pos != end) {
         T * value = list.insert(list.end());
         pos = unpickle(pos, end, *value);
+
+        if (!pos) {
+            return nullptr;
+        }
     }
+
     return pos;
 }
 

include/olm/pickle_encoding.h

@@ -23,6 +23,10 @@
 
 #include "olm/error.h"
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -31,7 +35,7 @@ extern "C" {
 /**
  * Get the number of bytes needed to encode a pickle of the length given
  */
-size_t _olm_enc_output_length(size_t raw_length);
+OLM_EXPORT size_t _olm_enc_output_length(size_t raw_length);
 
 /**
  * Get the point in the output buffer that the raw pickle should be written to.
@@ -41,7 +45,7 @@ size_t _olm_enc_output_length(size_t raw_length);
  * base-64 encoding would otherwise overwrite the end of the input before it
  * was encoded.)
  */
- uint8_t *_olm_enc_output_pos(uint8_t * output, size_t raw_length);
+OLM_EXPORT uint8_t *_olm_enc_output_pos(uint8_t * output, size_t raw_length);
 
 /**
  * Encrypt and encode the given pickle in-situ.
@@ -51,7 +55,7 @@ size_t _olm_enc_output_length(size_t raw_length);
  *
  * Returns the number of bytes in the encoded pickle.
  */
-size_t _olm_enc_output(
+OLM_EXPORT size_t _olm_enc_output(
     uint8_t const * key, size_t key_length,
     uint8_t *pickle, size_t raw_length
 );
@@ -62,7 +66,7 @@ size_t _olm_enc_output(
  * Returns the number of bytes in the decoded pickle, or olm_error() on error,
  * in which case *last_error will be updated, if last_error is non-NULL.
  */
-size_t _olm_enc_input(
+OLM_EXPORT size_t _olm_enc_input(
     uint8_t const * key, size_t key_length,
     uint8_t * input, size_t b64_length,
     enum OlmErrorCode * last_error

include/olm/pk.h

@@ -19,6 +19,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include "olm/error.h"
+
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -26,49 +30,55 @@ extern "C" {
 typedef struct OlmPkEncryption OlmPkEncryption;
 
 /* The size of an encryption object in bytes */
-size_t olm_pk_encryption_size(void);
+OLM_EXPORT size_t olm_pk_encryption_size(void);
 
 /** Initialise an encryption object using the supplied memory
  *  The supplied memory must be at least olm_pk_encryption_size() bytes */
-OlmPkEncryption *olm_pk_encryption(
+OLM_EXPORT OlmPkEncryption *olm_pk_encryption(
     void * memory
 );
 
 /** A null terminated string describing the most recent error to happen to an
  * encryption object */
-const char * olm_pk_encryption_last_error(
-    OlmPkEncryption * encryption
+OLM_EXPORT const char * olm_pk_encryption_last_error(
+    const OlmPkEncryption * encryption
+);
+
+/** An error code describing the most recent error to happen to an encryption
+ * object */
+OLM_EXPORT enum OlmErrorCode olm_pk_encryption_last_error_code(
+    const OlmPkEncryption * encryption
 );
 
 /** Clears the memory used to back this encryption object */
-size_t olm_clear_pk_encryption(
+OLM_EXPORT size_t olm_clear_pk_encryption(
     OlmPkEncryption *encryption
 );
 
 /** Set the recipient's public key for encrypting to */
-size_t olm_pk_encryption_set_recipient_key(
+OLM_EXPORT size_t olm_pk_encryption_set_recipient_key(
     OlmPkEncryption *encryption,
     void const *public_key, size_t public_key_length
 );
 
 /** Get the length of the ciphertext that will correspond to a plaintext of the
  * given length. */
-size_t olm_pk_ciphertext_length(
-    OlmPkEncryption *encryption,
+OLM_EXPORT size_t olm_pk_ciphertext_length(
+    const OlmPkEncryption *encryption,
     size_t plaintext_length
 );
 
 /** Get the length of the message authentication code. */
-size_t olm_pk_mac_length(
-    OlmPkEncryption *encryption
+OLM_EXPORT size_t olm_pk_mac_length(
+    const OlmPkEncryption *encryption
 );
 
 /** Get the length of a public or ephemeral key */
-size_t olm_pk_key_length(void);
+OLM_EXPORT size_t olm_pk_key_length(void);
 
 /** The number of random bytes needed to encrypt a message. */
-size_t olm_pk_encrypt_random_length(
-    OlmPkEncryption *encryption
+OLM_EXPORT size_t olm_pk_encrypt_random_length(
+    const OlmPkEncryption *encryption
 );
 
 /** Encrypt a plaintext for the recipient set using
@@ -81,7 +91,7 @@ size_t olm_pk_encrypt_random_length(
  * ephemeral_key buffers were too small then olm_pk_encryption_last_error()
  * will be "OUTPUT_BUFFER_TOO_SMALL". If there weren't enough random bytes then
  * olm_pk_encryption_last_error() will be "OLM_INPUT_BUFFER_TOO_SMALL". */
-size_t olm_pk_encrypt(
+OLM_EXPORT size_t olm_pk_encrypt(
     OlmPkEncryption *encryption,
     void const * plaintext, size_t plaintext_length,
     void * ciphertext, size_t ciphertext_length,
@@ -93,32 +103,38 @@ size_t olm_pk_encrypt(
 typedef struct OlmPkDecryption OlmPkDecryption;
 
 /* The size of a decryption object in bytes */
-size_t olm_pk_decryption_size(void);
+OLM_EXPORT size_t olm_pk_decryption_size(void);
 
 /** Initialise a decryption object using the supplied memory
  *  The supplied memory must be at least olm_pk_decryption_size() bytes */
-OlmPkDecryption *olm_pk_decryption(
+OLM_EXPORT OlmPkDecryption *olm_pk_decryption(
     void * memory
 );
 
 /** A null terminated string describing the most recent error to happen to a
  * decription object */
-const char * olm_pk_decryption_last_error(
-    OlmPkDecryption * decryption
+OLM_EXPORT const char * olm_pk_decryption_last_error(
+    const OlmPkDecryption * decryption
+);
+
+/** An error code describing the most recent error to happen to a decription
+ * object */
+OLM_EXPORT enum OlmErrorCode olm_pk_decryption_last_error_code(
+    const OlmPkDecryption * decryption
 );
 
 /** Clears the memory used to back this decryption object */
-size_t olm_clear_pk_decryption(
+OLM_EXPORT size_t olm_clear_pk_decryption(
     OlmPkDecryption *decryption
 );
 
 /** Get the number of bytes required to store an olm private key
  */
-size_t olm_pk_private_key_length(void);
+OLM_EXPORT size_t olm_pk_private_key_length(void);
 
 /** DEPRECATED: Use olm_pk_private_key_length()
  */
-size_t olm_pk_generate_key_random_length(void);
+OLM_EXPORT size_t olm_pk_generate_key_random_length(void);
 
 /** Initialise the key from the private part of a key as returned by
  * olm_pk_get_private_key(). The associated public key will be written to the
@@ -130,7 +146,7 @@ size_t olm_pk_generate_key_random_length(void);
  * Note that the pubkey is a base64 encoded string, but the private key is
  * an unencoded byte array
  */
-size_t olm_pk_key_from_private(
+OLM_EXPORT size_t olm_pk_key_from_private(
     OlmPkDecryption * decryption,
     void * pubkey, size_t pubkey_length,
     const void * privkey, size_t privkey_length
@@ -138,15 +154,15 @@ size_t olm_pk_key_from_private(
 
 /** DEPRECATED: Use olm_pk_key_from_private
  */
-size_t olm_pk_generate_key(
+OLM_EXPORT size_t olm_pk_generate_key(
     OlmPkDecryption * decryption,
     void * pubkey, size_t pubkey_length,
     const void * privkey, size_t privkey_length
 );
 
 /** Returns the number of bytes needed to store a decryption object. */
-size_t olm_pickle_pk_decryption_length(
-    OlmPkDecryption * decryption
+OLM_EXPORT size_t olm_pickle_pk_decryption_length(
+    const OlmPkDecryption * decryption
 );
 
 /** Stores decryption object as a base64 string. Encrypts the object using the
@@ -154,7 +170,7 @@ size_t olm_pickle_pk_decryption_length(
  * Returns olm_error() on failure. If the pickle output buffer
  * is smaller than olm_pickle_pk_decryption_length() then
  * olm_pk_decryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL" */
-size_t olm_pickle_pk_decryption(
+OLM_EXPORT size_t olm_pickle_pk_decryption(
     OlmPkDecryption * decryption,
     void const * key, size_t key_length,
     void *pickled, size_t pickled_length
@@ -167,7 +183,7 @@ size_t olm_pickle_pk_decryption(
  * will be "BAD_ACCOUNT_KEY". If the base64 couldn't be decoded then
  * olm_pk_decryption_last_error() will be "INVALID_BASE64". The input pickled
  * buffer is destroyed */
-size_t olm_unpickle_pk_decryption(
+OLM_EXPORT size_t olm_unpickle_pk_decryption(
     OlmPkDecryption * decryption,
     void const * key, size_t key_length,
     void *pickled, size_t pickled_length,
@@ -176,8 +192,8 @@ size_t olm_unpickle_pk_decryption(
 
 /** Get the length of the plaintext that will correspond to a ciphertext of the
  * given length. */
-size_t olm_pk_max_plaintext_length(
-    OlmPkDecryption * decryption,
+OLM_EXPORT size_t olm_pk_max_plaintext_length(
+    const OlmPkDecryption * decryption,
     size_t ciphertext_length
 );
 
@@ -186,7 +202,7 @@ size_t olm_pk_max_plaintext_length(
  * arguments. Returns the length of the plaintext on success. Returns
  * olm_error() on failure. If the plaintext buffer is too small then
  * olm_pk_encryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL". */
-size_t olm_pk_decrypt(
+OLM_EXPORT size_t olm_pk_decrypt(
     OlmPkDecryption * decryption,
     void const * ephemeral_key, size_t ephemeral_key_length,
     void const * mac, size_t mac_length,
@@ -202,7 +218,7 @@ size_t olm_pk_decrypt(
  * and olm_pk_encryption_last_error() will be "OUTPUT_BUFFER_TOO_SMALL".
  * Returns the number of bytes written.
  */
-size_t olm_pk_get_private_key(
+OLM_EXPORT size_t olm_pk_get_private_key(
     OlmPkDecryption * decryption,
     void *private_key, size_t private_key_length
 );
@@ -210,22 +226,28 @@ size_t olm_pk_get_private_key(
 typedef struct OlmPkSigning OlmPkSigning;
 
 /* The size of a signing object in bytes */
-size_t olm_pk_signing_size(void);
+OLM_EXPORT size_t olm_pk_signing_size(void);
 
 /** Initialise a signing object using the supplied memory
  *  The supplied memory must be at least olm_pk_signing_size() bytes */
-OlmPkSigning *olm_pk_signing(
+OLM_EXPORT OlmPkSigning *olm_pk_signing(
     void * memory
 );
 
 /** A null terminated string describing the most recent error to happen to a
  * signing object */
-const char * olm_pk_signing_last_error(
-    OlmPkSigning * sign
+OLM_EXPORT const char * olm_pk_signing_last_error(
+    const OlmPkSigning * sign
+);
+
+/** A null terminated string describing the most recent error to happen to a
+ * signing object */
+OLM_EXPORT enum OlmErrorCode olm_pk_signing_last_error_code(
+    const OlmPkSigning * sign
 );
 
 /** Clears the memory used to back this signing object */
-size_t olm_clear_pk_signing(
+OLM_EXPORT size_t olm_clear_pk_signing(
     OlmPkSigning *sign
 );
 
@@ -237,7 +259,7 @@ size_t olm_clear_pk_signing(
  * buffer is too small then olm_pk_signing_last_error() will be
  * "INPUT_BUFFER_TOO_SMALL".
  */
-size_t olm_pk_signing_key_from_seed(
+OLM_EXPORT size_t olm_pk_signing_key_from_seed(
     OlmPkSigning * sign,
     void * pubkey, size_t pubkey_length,
     const void * seed, size_t seed_length
@@ -246,24 +268,24 @@ size_t olm_pk_signing_key_from_seed(
 /**
  * The size required for the seed for initialising a signing object.
  */
-size_t olm_pk_signing_seed_length(void);
+OLM_EXPORT size_t olm_pk_signing_seed_length(void);
 
 /**
  * The size of the public key of a signing object.
  */
-size_t olm_pk_signing_public_key_length(void);
+OLM_EXPORT size_t olm_pk_signing_public_key_length(void);
 
 /**
  * The size of a signature created by a signing object.
  */
-size_t olm_pk_signature_length(void);
+OLM_EXPORT size_t olm_pk_signature_length(void);
 
 /**
  * Sign a message. The signature will be written to the signature
  * buffer. Returns olm_error() on failure. If the signature buffer is too
  * small, olm_pk_signing_last_error() will be "OUTPUT_BUFFER_TOO_SMALL".
  */
-size_t olm_pk_sign(
+OLM_EXPORT size_t olm_pk_sign(
     OlmPkSigning *sign,
     uint8_t const * message, size_t message_length,
     uint8_t * signature, size_t signature_length

include/olm/ratchet.hh

@@ -19,6 +19,10 @@
 #include "olm/list.hh"
 #include "olm/error.h"
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 struct _olm_cipher;
 
 namespace olm {
@@ -72,7 +76,7 @@ struct KdfInfo {
 };
 
 
-struct Ratchet {
+struct OLM_EXPORT Ratchet {
 
     Ratchet(
         KdfInfo const & kdf_info,
@@ -124,12 +128,12 @@ struct Ratchet {
      * a given message length. */
     std::size_t encrypt_output_length(
         std::size_t plaintext_length
-    );
+    ) const;
 
     /** The number of bytes of random data the encrypt method will need to
      * encrypt a message. This will be 32 bytes if the session needs to
      * generate a new ephemeral key, or will be 0 bytes otherwise.*/
-    std::size_t encrypt_random_length();
+    std::size_t encrypt_random_length() const;
 
     /** Encrypt some plain-text. Returns the length of the encrypted message
      * or std::size_t(-1) on failure. On failure last_error will be set with

include/olm/sas.h

@@ -19,6 +19,10 @@
 
 #include <stddef.h>
 
+#include "olm/error.h"
+
+#include "olm/olm_export.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -33,27 +37,33 @@ typedef struct OlmSAS OlmSAS;
 
 /** A null terminated string describing the most recent error to happen to an
  * SAS object. */
-const char * olm_sas_last_error(
-    OlmSAS * sas
+OLM_EXPORT const char * olm_sas_last_error(
+    const OlmSAS * sas
+);
+
+/** An error code describing the most recent error to happen to an SAS
+ * object. */
+OLM_EXPORT enum OlmErrorCode olm_sas_last_error_code(
+    const OlmSAS * sas
 );
 
 /** The size of an SAS object in bytes. */
-size_t olm_sas_size(void);
+OLM_EXPORT size_t olm_sas_size(void);
 
 /** Initialize an SAS object using the supplied memory.
  * The supplied memory must be at least `olm_sas_size()` bytes. */
-OlmSAS * olm_sas(
+OLM_EXPORT OlmSAS * olm_sas(
     void * memory
 );
 
 /** Clears the memory used to back an SAS object. */
-size_t olm_clear_sas(
+OLM_EXPORT size_t olm_clear_sas(
     OlmSAS * sas
 );
 
 /** The number of random bytes needed to create an SAS object. */
-size_t olm_create_sas_random_length(
-    OlmSAS * sas
+OLM_EXPORT size_t olm_create_sas_random_length(
+    const OlmSAS * sas
 );
 
 /** Creates a new SAS object.
@@ -67,13 +77,13 @@ size_t olm_create_sas_random_length(
  * @return `olm_error()` on failure.  If there weren't enough random bytes then
  * `olm_sas_last_error()` will be `NOT_ENOUGH_RANDOM`.
  */
-size_t olm_create_sas(
+OLM_EXPORT size_t olm_create_sas(
     OlmSAS * sas,
     void * random, size_t random_length
 );
 
 /** The size of a public key in bytes. */
-size_t olm_sas_pubkey_length(OlmSAS * sas);
+OLM_EXPORT size_t olm_sas_pubkey_length(const OlmSAS * sas);
 
 /** Get the public key for the SAS object.
  *
@@ -85,7 +95,7 @@ size_t olm_sas_pubkey_length(OlmSAS * sas);
  * @return `olm_error()` on failure.  If the `pubkey` buffer is too small, then
  * `olm_sas_last_error()` will be `OUTPUT_BUFFER_TOO_SMALL`.
  */
-size_t olm_sas_get_pubkey(
+OLM_EXPORT size_t olm_sas_get_pubkey(
     OlmSAS * sas,
     void * pubkey, size_t pubkey_length
 );
@@ -100,7 +110,7 @@ size_t olm_sas_get_pubkey(
  * @return `olm_error()` on failure.  If the `their_key` buffer is too small,
  * then `olm_sas_last_error()` will be `INPUT_BUFFER_TOO_SMALL`.
  */
-size_t olm_sas_set_their_key(
+OLM_EXPORT size_t olm_sas_set_their_key(
     OlmSAS *sas,
     void * their_key, size_t their_key_length
 );
@@ -110,8 +120,8 @@ size_t olm_sas_set_their_key(
  * @param[in] sas the SAS object.
  *
  */
-int olm_sas_is_their_key_set(
-    OlmSAS *sas
+OLM_EXPORT int olm_sas_is_their_key_set(
+    const OlmSAS *sas
 );
 
 /** Generate bytes to use for the short authentication string.
@@ -127,7 +137,7 @@ int olm_sas_is_their_key_set(
  * @return `olm_error()` on failure. If their key wasn't set then
  * `olm_sas_last_error()` will be `SAS_THEIR_KEY_NOT_SET`.
  */
-size_t olm_sas_generate_bytes(
+OLM_EXPORT size_t olm_sas_generate_bytes(
     OlmSAS * sas,
     const void * info, size_t info_length,
     void * output, size_t output_length
@@ -135,8 +145,8 @@ size_t olm_sas_generate_bytes(
 
 /** The size of the message authentication code generated by
  * olm_sas_calculate_mac()`. */
-size_t olm_sas_mac_length(
-    OlmSAS *sas
+OLM_EXPORT size_t olm_sas_mac_length(
+    const OlmSAS *sas
 );
 
 /** Generate a message authentication code (MAC) based on the shared secret.
@@ -154,7 +164,7 @@ size_t olm_sas_mac_length(
  * @return `olm_error()` on failure.  If the `mac` buffer is too small, then
  * `olm_sas_last_error()` will be `OUTPUT_BUFFER_TOO_SMALL`.
  */
-size_t olm_sas_calculate_mac(
+OLM_EXPORT size_t olm_sas_calculate_mac(
     OlmSAS * sas,
     const void * input, size_t input_length,
     const void * info, size_t info_length,
@@ -163,7 +173,7 @@ size_t olm_sas_calculate_mac(
 
 // A version of the calculate mac function that produces base64 strings that are
 // compatible with other base64 implementations.
-size_t olm_sas_calculate_mac_fixed_base64(
+OLM_EXPORT size_t olm_sas_calculate_mac_fixed_base64(
     OlmSAS * sas,
     const void * input, size_t input_length,
     const void * info, size_t info_length,
@@ -171,7 +181,7 @@ size_t olm_sas_calculate_mac_fixed_base64(
 );
 
 // for compatibility with an old version of Riot
-size_t olm_sas_calculate_mac_long_kdf(
+OLM_EXPORT size_t olm_sas_calculate_mac_long_kdf(
     OlmSAS * sas,
     const void * input, size_t input_length,
     const void * info, size_t info_length,

include/olm/session.hh

@@ -17,6 +17,10 @@
 
 #include "olm/ratchet.hh"
 
+// Note: exports in this file are only for unit tests.  Nobody else should be
+// using this externally
+#include "olm/olm_export.h"
+
 namespace olm {
 
 struct Account;
@@ -26,7 +30,7 @@ enum struct MessageType {
     MESSAGE = 1,
 };
 
-struct Session {
+struct OLM_EXPORT Session {
 
     Session();
 
@@ -41,7 +45,7 @@ struct Session {
 
     /** The number of random bytes that are needed to create a new outbound
      * session. This will be 64 bytes since two ephemeral keys are needed. */
-    std::size_t new_outbound_session_random_length();
+    std::size_t new_outbound_session_random_length() const;
 
     /** Start a new outbound session. Returns std::size_t(-1) on failure. On
      * failure last_error will be set with an error code. The last_error will be
@@ -64,7 +68,7 @@ struct Session {
     );
 
     /** The number of bytes written by session_id() */
-    std::size_t session_id_length();
+    std::size_t session_id_length() const;
 
     /** An identifier for this session. Generated by hashing the public keys
      * used to create the session. Returns the length of the session id on
@@ -84,21 +88,21 @@ struct Session {
     bool matches_inbound_session(
         _olm_curve25519_public_key const * their_identity_key,
         std::uint8_t const * pre_key_message, std::size_t message_length
-    );
+    ) const;
 
     /** Whether the next message will be a pre-key message or a normal message.
      * An outbound session will send pre-key messages until it receives a
      * message with a ratchet key. */
-    MessageType encrypt_message_type();
+    MessageType encrypt_message_type() const;
 
     std::size_t encrypt_message_length(
         std::size_t plaintext_length
-    );
+    ) const;
 
     /** The number of bytes of random data the encrypt method will need to
      * encrypt a message. This will be 32 bytes if the session needs to
      * generate a new ephemeral key, or will be 0 bytes otherwise. */
-    std::size_t encrypt_random_length();
+    std::size_t encrypt_random_length() const;
 
     /** Encrypt some plain-text. Returns the length of the encrypted message
       * or std::size_t(-1) on failure. On failure last_error will be set with
@@ -153,7 +157,7 @@ std::uint8_t * pickle(
 );
 
 
-std::uint8_t const * unpickle(
+OLM_EXPORT std::uint8_t const * unpickle(
     std::uint8_t const * pos, std::uint8_t const * end,
     Session & value
 );

include/olm/utility.hh

@@ -32,7 +32,7 @@ struct Utility {
     OlmErrorCode last_error;
 
     /** The length of a SHA-256 hash in bytes. */
-    std::size_t sha256_length();
+    std::size_t sha256_length() const;
 
     /** Compute a SHA-256 hash. Returns the length of the SHA-256 hash in bytes
      * on success. Returns std::size_t(-1) on failure. On failure last_error

javascript/.gitlab-ci.yml

@@ -0,0 +1,29 @@
+default:
+  image: docker.io/emscripten/emsdk:latest
+
+stages:
+  - build
+  - test
+
+build:js:
+  stage: build
+  script:
+    - ln -sf $(which python3) /usr/local/bin/python
+    - make js
+  artifacts:
+    paths:
+      - build/javascript
+      - javascript/olm.js
+      - javascript/olm.wasm
+      - javascript/olm_legacy.js
+      - javascript/index.d.ts
+      - javascript/exported_functions.json
+
+test:js:
+  stage: test
+  needs:
+    - build:js
+  script:
+    - pushd javascript
+    - npm i
+    - npm run test

javascript/README.md

@@ -5,6 +5,11 @@ Note: before using any of the olm functions, you must call `Olm.init()`, and
 wait for the promise to resolve, otherwise you will get errors like:
 `Uncaught TypeError: Olm.Account is not a constructor`
 
+If you get errors about failure to compile the wasm file, it is likely that Olm
+is not locating the wasm file properly.  You can tell Olm where the wasm file
+is by passing a `locateFile` parameter to `Olm.init()`, for example:
+`Olm.init({locateFile: () => pathToWasmFile})`.
+
 Example:
 
     var alice = new Olm.Account();

javascript/index.d.ts

@@ -18,26 +18,28 @@ export as namespace Olm;
 
 declare class Account {
     constructor();
-    free();
-    create();
+    free(): void;
+    create(): void;
     identity_keys(): string;
     sign(message: string | Uint8Array): string;
     one_time_keys(): string;
-    mark_keys_as_published();
+    mark_keys_as_published(): void;
     max_number_of_one_time_keys(): number;
-    generate_one_time_keys(number_of_keys: number);
-    remove_one_time_keys(session: Session);
-    generate_fallback_key();
+    generate_one_time_keys(number_of_keys: number): void;
+    remove_one_time_keys(session: Session): void;
+    generate_fallback_key(): void;
     fallback_key(): string;
+    unpublished_fallback_key(): string;
+    forget_old_fallback_key(): void;
     pickle(key: string | Uint8Array): string;
-    unpickle(key: string | Uint8Array, pickle: string);
+    unpickle(key: string | Uint8Array, pickle: string): void;
 }
 
 declare class Session {
     constructor();
     free(): void;
     pickle(key: string | Uint8Array): string;
-    unpickle(key: string | Uint8Array, pickle: string);
+    unpickle(key: string | Uint8Array, pickle: string): void;
     create_outbound(
         account: Account, their_identity_key: string, their_one_time_key: string,
     ): void;
@@ -49,7 +51,10 @@ declare class Session {
     has_received_message(): boolean;
     matches_inbound(one_time_key_message: string): boolean;
     matches_inbound_from(identity_key: string, one_time_key_message: string): boolean;
-    encrypt(plaintext: string): object;
+    encrypt(plaintext: string): {
+        type: 0 | 1; // 0: PreKey, 1: Message
+        body: string;
+    };
     decrypt(message_type: number, message: string): string;
     describe(): string;
 }
@@ -65,10 +70,13 @@ declare class InboundGroupSession {
     constructor();
     free(): void;
     pickle(key: string | Uint8Array): string;
-    unpickle(key: string | Uint8Array, pickle: string);
+    unpickle(key: string | Uint8Array, pickle: string): void;
     create(session_key: string): string;
     import_session(session_key: string): string;
-    decrypt(message: string): object;
+    decrypt(message: string): {
+        message_index: number;
+        plaintext: string;
+    };
     session_id(): string;
     first_known_index(): number;
     export_session(message_index: number): string;
@@ -78,7 +86,7 @@ declare class OutboundGroupSession {
     constructor();
     free(): void;
     pickle(key: string | Uint8Array): string;
-    unpickle(key: string | Uint8Array, pickle: string);
+    unpickle(key: string | Uint8Array, pickle: string): void;
     create(): void;
     encrypt(plaintext: string): string;
     session_id(): string;
@@ -90,7 +98,11 @@ declare class PkEncryption {
     constructor();
     free(): void;
     set_recipient_key(key: string): void;
-    encrypt(plaintext: string): object;
+    encrypt(plaintext: string): {
+        ciphertext: string;
+        mac: string;
+        ephemeral: string;
+    };
 }
 
 declare class PkDecryption {
@@ -119,6 +131,7 @@ declare class SAS {
     set_their_key(their_key: string): void;
     generate_bytes(info: string, length: number): Uint8Array;
     calculate_mac(input: string, info: string): string;
+    calculate_mac_fixed_base64(input: string, info: string): string;
     calculate_mac_long_kdf(input: string, info: string): string;
 }
 

javascript/olm_inbound_group_session.js

@@ -1,3 +1,4 @@
+/** @constructor */
 function InboundGroupSession() {
     var size = Module['_olm_inbound_group_session_size']();
     this.buf = malloc(size);

javascript/olm_outbound_group_session.js

@@ -1,3 +1,4 @@
+/** @constructor */
 function OutboundGroupSession() {
     var size = Module['_olm_outbound_group_session_size']();
     this.buf = malloc(size);
@@ -67,9 +68,14 @@ OutboundGroupSession.prototype['create'] = restore_stack(function() {
         Module['_olm_init_outbound_group_session_random_length']
     )(this.ptr);
     var random = random_stack(random_length);
-    outbound_group_session_method(Module['_olm_init_outbound_group_session'])(
-        this.ptr, random, random_length
-    );
+    try {
+        outbound_group_session_method(Module['_olm_init_outbound_group_session'])(
+            this.ptr, random, random_length
+        );
+    } finally {
+        // clear the random buffer
+        bzero(random, random_length);
+    }
 });
 
 OutboundGroupSession.prototype['encrypt'] = function(plaintext) {

javascript/olm_pk.js

@@ -1,3 +1,4 @@
+/** @constructor */
 function PkEncryption() {
     var size = Module['_olm_pk_encryption_size']();
     this.buf = malloc(size);
@@ -98,6 +99,7 @@ PkEncryption.prototype['encrypt'] = restore_stack(function(
 });
 
 
+/** @constructor */
 function PkDecryption() {
     var size = Module['_olm_pk_decryption_size']();
     this.buf = malloc(size);
@@ -273,6 +275,7 @@ PkDecryption.prototype['decrypt'] = restore_stack(function (
 })
 
 
+/** @constructor */
 function PkSigning() {
     var size = Module['_olm_pk_signing_size']();
     this.buf = malloc(size);

javascript/olm_post.js

@@ -44,6 +44,7 @@ function bzero(ptr, n) {
     }
 }
 
+/** @constructor */
 function Account() {
     var size = Module['_olm_account_size']();
     this.buf = malloc(size);
@@ -73,9 +74,14 @@ Account.prototype['create'] = restore_stack(function() {
         Module['_olm_create_account_random_length']
     )(this.ptr);
     var random = random_stack(random_length);
-    account_method(Module['_olm_create_account'])(
-        this.ptr, random, random_length
-    );
+    try {
+        account_method(Module['_olm_create_account'])(
+            this.ptr, random, random_length
+        );
+    } finally {
+        // clear the random buffer
+        bzero(random, random_length);
+    }
 });
 
 Account.prototype['identity_keys'] = restore_stack(function() {
@@ -140,9 +146,14 @@ Account.prototype['generate_one_time_keys'] = restore_stack(function(
         Module['_olm_account_generate_one_time_keys_random_length']
     )(this.ptr, number_of_keys);
     var random = random_stack(random_length);
-    account_method(Module['_olm_account_generate_one_time_keys'])(
-        this.ptr, number_of_keys, random, random_length
-    );
+    try {
+        account_method(Module['_olm_account_generate_one_time_keys'])(
+            this.ptr, number_of_keys, random, random_length
+        );
+    } finally {
+        // clear the random buffer
+        bzero(random, random_length);
+    }
 });
 
 Account.prototype['remove_one_time_keys'] = restore_stack(function(session) {
@@ -156,9 +167,14 @@ Account.prototype['generate_fallback_key'] = restore_stack(function() {
         Module['_olm_account_generate_fallback_key_random_length']
     )(this.ptr);
     var random = random_stack(random_length);
-    account_method(Module['_olm_account_generate_fallback_key'])(
-        this.ptr, random, random_length
-    );
+    try {
+        account_method(Module['_olm_account_generate_fallback_key'])(
+            this.ptr, random, random_length
+        );
+    } finally {
+        // clear the random buffer
+        bzero(random, random_length);
+    }
 });
 
 Account.prototype['fallback_key'] = restore_stack(function() {
@@ -172,6 +188,23 @@ Account.prototype['fallback_key'] = restore_stack(function() {
     return UTF8ToString(keys, keys_length);
 });
 
+Account.prototype['unpublished_fallback_key'] = restore_stack(function() {
+    var keys_length = account_method(
+        Module['_olm_account_unpublished_fallback_key_length']
+    )(this.ptr);
+    var keys = stack(keys_length + NULL_BYTE_PADDING_LENGTH);
+    account_method(Module['_olm_account_unpublished_fallback_key'])(
+        this.ptr, keys, keys_length
+    );
+    return UTF8ToString(keys, keys_length);
+});
+
+Account.prototype['forget_old_fallback_key'] = restore_stack(function() {
+    account_method(Module['_olm_account_forget_old_fallback_key'])(
+        this.ptr
+    );
+});
+
 Account.prototype['pickle'] = restore_stack(function(key) {
     var key_array = array_from_string(key);
     var pickle_length = account_method(
@@ -212,6 +245,7 @@ Account.prototype['unpickle'] = restore_stack(function(key, pickle) {
     }
 });
 
+/** @constructor */
 function Session() {
     var size = Module['_olm_session_size']();
     this.buf = malloc(size);
@@ -498,6 +532,7 @@ Session.prototype['describe'] = restore_stack(function() {
     }
 });
 
+/** @constructor */
 function Utility() {
     var size = Module['_olm_utility_size']();
     this.buf = malloc(size);

javascript/olm_pre.js

@@ -14,7 +14,6 @@ if (typeof(window) !== 'undefined') {
         var bytes = nodeCrypto['randomBytes'](buf.length);
         buf.set(bytes);
     };
-    process = global["process"];
 } else {
     throw new Error("Cannot find global to attach library to");
 }

javascript/olm_sas.js

@@ -1,3 +1,4 @@
+/** @constructor */
 function SAS() {
     var size = Module['_olm_sas_size']();
     var random_length = Module['_olm_create_sas_random_length']();
@@ -82,6 +83,22 @@ SAS.prototype['calculate_mac'] = restore_stack(function(input, info) {
     return UTF8ToString(mac_buffer, mac_length);
 });
 
+SAS.prototype['calculate_mac_fixed_base64'] = restore_stack(function(input, info) {
+    var input_array = array_from_string(input);
+    var input_buffer = stack(input_array);
+    var info_array = array_from_string(info);
+    var info_buffer = stack(info_array);
+    var mac_length = sas_method(Module['_olm_sas_mac_length'])(this.ptr);
+    var mac_buffer = stack(mac_length + NULL_BYTE_PADDING_LENGTH);
+    sas_method(Module['_olm_sas_calculate_mac_fixed_base64'])(
+        this.ptr,
+        input_buffer, input_array.length,
+        info_buffer, info_array.length,
+        mac_buffer, mac_length
+    );
+    return UTF8ToString(mac_buffer, mac_length);
+});
+
 SAS.prototype['calculate_mac_long_kdf'] = restore_stack(function(input, info) {
     var input_array = array_from_string(input);
     var input_buffer = stack(input_array);

javascript/package-lock.json

@@ -0,0 +1,241 @@
+{
+  "name": "@matrix-org/olm",
+  "version": "3.2.11",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "@matrix-org/olm",
+      "version": "3.2.11",
+      "license": "Apache-2.0",
+      "devDependencies": {
+        "jasmine": "^3.0.0"
+      }
+    },
+    "node_modules/balanced-match": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
+      "dev": true
+    },
+    "node_modules/brace-expansion": {
+      "version": "1.1.11",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
+      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
+      }
+    },
+    "node_modules/concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
+    },
+    "node_modules/fs.realpath": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+      "dev": true
+    },
+    "node_modules/glob": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.0.tgz",
+      "integrity": "sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==",
+      "dev": true,
+      "dependencies": {
+        "fs.realpath": "^1.0.0",
+        "inflight": "^1.0.4",
+        "inherits": "2",
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+        "once": "^1.3.0",
+        "path-is-absolute": "^1.0.0"
+      },
+      "engines": {
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+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
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+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
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+        "jasmine-core": "~3.99.0"
+      },
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+      }
+    },
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+      },
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+      }
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+        "glob": "^7.1.6",
+        "jasmine-core": "~3.99.0"
+      }
+    },
+    "jasmine-core": {
+      "version": "3.99.1",
+      "resolved": "https://registry.npmjs.org/jasmine-core/-/jasmine-core-3.99.1.tgz",
+      "integrity": "sha512-Hu1dmuoGcZ7AfyynN3LsfruwMbxMALMka+YtZeGoLuDEySVmVAPaonkNoBRIw/ectu8b9tVQCJNgp4a4knp+tg==",
+      "dev": true
+    },
+    "minimatch": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
+      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+      "dev": true,
+      "requires": {
+        "brace-expansion": "^1.1.7"
+      }
+    },
+    "once": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "dev": true,
+      "requires": {
+        "wrappy": "1"
+      }
+    },
+    "path-is-absolute": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+      "dev": true
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    }
+  }
+}

javascript/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@matrix-org/olm",
-  "version": "3.2.2",
+  "version": "3.2.16",
   "description": "An implementation of the Double Ratchet cryptographic ratchet",
   "main": "olm.js",
   "files": [
@@ -14,7 +14,7 @@
   ],
   "scripts": {
     "build": "make -C .. js",
-    "test": "jasmine-node test --verbose --junitreport --captureExceptions"
+    "test": "jasmine --config=test/jasmine.json"
   },
   "repository": {
     "type": "git",
@@ -30,9 +30,6 @@
   },
   "homepage": "https://gitlab.matrix.org/matrix-org/olm",
   "devDependencies": {
-    "jasmine-node": "^1.14.5"
-  },
-  "publishConfig": {
-    "@matrix-org:registry":"https://gitlab.matrix.org/api/v4/projects/27/packages/npm/"
+    "jasmine": "^3.0.0"
   }
 }

javascript/test/jasmine.json

@@ -0,0 +1,6 @@
+{
+    "spec_dir": "test",
+    "spec_files": [
+        "**/*.spec.js"
+    ]
+}

javascript/test/sas.spec.js

@@ -19,7 +19,7 @@ var Olm = require('../olm');
 describe("sas", function() {
     var alice, bob;
 
-    beforeEach(async function(done) {
+    beforeEach(function(done) {
         Olm.init().then(function() {
             alice = new Olm.SAS();
             bob = new Olm.SAS();

lib/crypto-algorithms/aes.h

@@ -1,123 +1,123 @@
-/*********************************************************************
-* Filename:   aes.h
-* Author:     Brad Conte (brad AT bradconte.com)
-* Copyright:
-* Disclaimer: This code is presented "as is" without any guarantees.
-* Details:    Defines the API for the corresponding AES implementation.
-*********************************************************************/
-
-#ifndef AES_H
-#define AES_H
-
-/*************************** HEADER FILES ***************************/
-#include <stddef.h>
-
-/****************************** MACROS ******************************/
-#define AES_BLOCK_SIZE 16               // AES operates on 16 bytes at a time
-
-/**************************** DATA TYPES ****************************/
-typedef unsigned char BYTE;            // 8-bit byte
-typedef unsigned int WORD;             // 32-bit word, change to "long" for 16-bit machines
-
-/*********************** FUNCTION DECLARATIONS **********************/
-///////////////////
-// AES
-///////////////////
-// Key setup must be done before any AES en/de-cryption functions can be used.
-void aes_key_setup(const BYTE key[],          // The key, must be 128, 192, or 256 bits
-                   WORD w[],                  // Output key schedule to be used later
-                   int keysize);              // Bit length of the key, 128, 192, or 256
-
-void aes_encrypt(const BYTE in[],             // 16 bytes of plaintext
-                 BYTE out[],                  // 16 bytes of ciphertext
-                 const WORD key[],            // From the key setup
-                 int keysize);                // Bit length of the key, 128, 192, or 256
-
-void aes_decrypt(const BYTE in[],             // 16 bytes of ciphertext
-                 BYTE out[],                  // 16 bytes of plaintext
-                 const WORD key[],            // From the key setup
-                 int keysize);                // Bit length of the key, 128, 192, or 256
-
-///////////////////
-// AES - CBC
-///////////////////
-int aes_encrypt_cbc(const BYTE in[],          // Plaintext
-                    size_t in_len,            // Must be a multiple of AES_BLOCK_SIZE
-                    BYTE out[],               // Ciphertext, same length as plaintext
-                    const WORD key[],         // From the key setup
-                    int keysize,              // Bit length of the key, 128, 192, or 256
-                    const BYTE iv[]);         // IV, must be AES_BLOCK_SIZE bytes long
-
-// Only output the CBC-MAC of the input.
-int aes_encrypt_cbc_mac(const BYTE in[],      // plaintext
-                        size_t in_len,        // Must be a multiple of AES_BLOCK_SIZE
-                        BYTE out[],           // Output MAC
-                        const WORD key[],     // From the key setup
-                        int keysize,          // Bit length of the key, 128, 192, or 256
-                        const BYTE iv[]);     // IV, must be AES_BLOCK_SIZE bytes long
-
-///////////////////
-// AES - CTR
-///////////////////
-void increment_iv(BYTE iv[],                  // Must be a multiple of AES_BLOCK_SIZE
-                  int counter_size);          // Bytes of the IV used for counting (low end)
-
-void aes_encrypt_ctr(const BYTE in[],         // Plaintext
-                     size_t in_len,           // Any byte length
-                     BYTE out[],              // Ciphertext, same length as plaintext
-                     const WORD key[],        // From the key setup
-                     int keysize,             // Bit length of the key, 128, 192, or 256
-                     const BYTE iv[]);        // IV, must be AES_BLOCK_SIZE bytes long
-
-void aes_decrypt_ctr(const BYTE in[],         // Ciphertext
-                     size_t in_len,           // Any byte length
-                     BYTE out[],              // Plaintext, same length as ciphertext
-                     const WORD key[],        // From the key setup
-                     int keysize,             // Bit length of the key, 128, 192, or 256
-                     const BYTE iv[]);        // IV, must be AES_BLOCK_SIZE bytes long
-
-///////////////////
-// AES - CCM
-///////////////////
-// Returns True if the input parameters do not violate any constraint.
-int aes_encrypt_ccm(const BYTE plaintext[],              // IN  - Plaintext.
-                    WORD plaintext_len,                  // IN  - Plaintext length.
-                    const BYTE associated_data[],        // IN  - Associated Data included in authentication, but not encryption.
-                    unsigned short associated_data_len,  // IN  - Associated Data length in bytes.
-                    const BYTE nonce[],                  // IN  - The Nonce to be used for encryption.
-                    unsigned short nonce_len,            // IN  - Nonce length in bytes.
-                    BYTE ciphertext[],                   // OUT - Ciphertext, a concatination of the plaintext and the MAC.
-                    WORD *ciphertext_len,                // OUT - The length of the ciphertext, always plaintext_len + mac_len.
-                    WORD mac_len,                        // IN  - The desired length of the MAC, must be 4, 6, 8, 10, 12, 14, or 16.
-                    const BYTE key[],                    // IN  - The AES key for encryption.
-                    int keysize);                        // IN  - The length of the key in bits. Valid values are 128, 192, 256.
-
-// Returns True if the input parameters do not violate any constraint.
-// Use mac_auth to ensure decryption/validation was preformed correctly.
-// If authentication does not succeed, the plaintext is zeroed out. To overwride
-// this, call with mac_auth = NULL. The proper proceedure is to decrypt with
-// authentication enabled (mac_auth != NULL) and make a second call to that
-// ignores authentication explicitly if the first call failes.
-int aes_decrypt_ccm(const BYTE ciphertext[],             // IN  - Ciphertext, the concatination of encrypted plaintext and MAC.
-                    WORD ciphertext_len,                 // IN  - Ciphertext length in bytes.
-                    const BYTE assoc[],                  // IN  - The Associated Data, required for authentication.
-                    unsigned short assoc_len,            // IN  - Associated Data length in bytes.
-                    const BYTE nonce[],                  // IN  - The Nonce to use for decryption, same one as for encryption.
-                    unsigned short nonce_len,            // IN  - Nonce length in bytes.
-                    BYTE plaintext[],                    // OUT - The plaintext that was decrypted. Will need to be large enough to hold ciphertext_len - mac_len.
-                    WORD *plaintext_len,                 // OUT - Length in bytes of the output plaintext, always ciphertext_len - mac_len .
-                    WORD mac_len,                        // IN  - The length of the MAC that was calculated.
-                    int *mac_auth,                       // OUT - TRUE if authentication succeeded, FALSE if it did not. NULL pointer will ignore the authentication.
-                    const BYTE key[],                    // IN  - The AES key for decryption.
-                    int keysize);                        // IN  - The length of the key in BITS. Valid values are 128, 192, 256.
-
-///////////////////
-// Test functions
-///////////////////
-int aes_test();
-int aes_ecb_test();
-int aes_cbc_test();
-int aes_ctr_test();
-int aes_ccm_test();
-
-#endif   // AES_H
+/*********************************************************************
+* Filename:   aes.h
+* Author:     Brad Conte (brad AT bradconte.com)
+* Copyright:
+* Disclaimer: This code is presented "as is" without any guarantees.
+* Details:    Defines the API for the corresponding AES implementation.
+*********************************************************************/
+
+#ifndef AES_H
+#define AES_H
+
+/*************************** HEADER FILES ***************************/
+#include <stddef.h>
+#include <stdint.h>
+/****************************** MACROS ******************************/
+#define AES_BLOCK_SIZE 16               // AES operates on 16 bytes at a time
+
+/**************************** DATA TYPES ****************************/
+typedef uint8_t BYTE;            // 8-bit byte
+typedef uint32_t WORD;             // 32-bit word, change to "long" for 16-bit machines
+
+/*********************** FUNCTION DECLARATIONS **********************/
+///////////////////
+// AES
+///////////////////
+// Key setup must be done before any AES en/de-cryption functions can be used.
+void aes_key_setup(const BYTE key[],          // The key, must be 128, 192, or 256 bits
+                   WORD w[],                  // Output key schedule to be used later
+                   int keysize);              // Bit length of the key, 128, 192, or 256
+
+void aes_encrypt(const BYTE in[],             // 16 bytes of plaintext
+                 BYTE out[],                  // 16 bytes of ciphertext
+                 const WORD key[],            // From the key setup
+                 int keysize);                // Bit length of the key, 128, 192, or 256
+
+void aes_decrypt(const BYTE in[],             // 16 bytes of ciphertext
+                 BYTE out[],                  // 16 bytes of plaintext
+                 const WORD key[],            // From the key setup
+                 int keysize);                // Bit length of the key, 128, 192, or 256
+
+///////////////////
+// AES - CBC
+///////////////////
+int aes_encrypt_cbc(const BYTE in[],          // Plaintext
+                    size_t in_len,            // Must be a multiple of AES_BLOCK_SIZE
+                    BYTE out[],               // Ciphertext, same length as plaintext
+                    const WORD key[],         // From the key setup
+                    int keysize,              // Bit length of the key, 128, 192, or 256
+                    const BYTE iv[]);         // IV, must be AES_BLOCK_SIZE bytes long
+
+// Only output the CBC-MAC of the input.
+int aes_encrypt_cbc_mac(const BYTE in[],      // plaintext
+                        size_t in_len,        // Must be a multiple of AES_BLOCK_SIZE
+                        BYTE out[],           // Output MAC
+                        const WORD key[],     // From the key setup
+                        int keysize,          // Bit length of the key, 128, 192, or 256
+                        const BYTE iv[]);     // IV, must be AES_BLOCK_SIZE bytes long
+
+///////////////////
+// AES - CTR
+///////////////////
+void increment_iv(BYTE iv[],                  // Must be a multiple of AES_BLOCK_SIZE
+                  int counter_size);          // Bytes of the IV used for counting (low end)
+
+void aes_encrypt_ctr(const BYTE in[],         // Plaintext
+                     size_t in_len,           // Any byte length
+                     BYTE out[],              // Ciphertext, same length as plaintext
+                     const WORD key[],        // From the key setup
+                     int keysize,             // Bit length of the key, 128, 192, or 256
+                     const BYTE iv[]);        // IV, must be AES_BLOCK_SIZE bytes long
+
+void aes_decrypt_ctr(const BYTE in[],         // Ciphertext
+                     size_t in_len,           // Any byte length
+                     BYTE out[],              // Plaintext, same length as ciphertext
+                     const WORD key[],        // From the key setup
+                     int keysize,             // Bit length of the key, 128, 192, or 256
+                     const BYTE iv[]);        // IV, must be AES_BLOCK_SIZE bytes long
+
+///////////////////
+// AES - CCM
+///////////////////
+// Returns True if the input parameters do not violate any constraint.
+int aes_encrypt_ccm(const BYTE plaintext[],              // IN  - Plaintext.
+                    WORD plaintext_len,                  // IN  - Plaintext length.
+                    const BYTE associated_data[],        // IN  - Associated Data included in authentication, but not encryption.
+                    unsigned short associated_data_len,  // IN  - Associated Data length in bytes.
+                    const BYTE nonce[],                  // IN  - The Nonce to be used for encryption.
+                    unsigned short nonce_len,            // IN  - Nonce length in bytes.
+                    BYTE ciphertext[],                   // OUT - Ciphertext, a concatination of the plaintext and the MAC.
+                    WORD *ciphertext_len,                // OUT - The length of the ciphertext, always plaintext_len + mac_len.
+                    WORD mac_len,                        // IN  - The desired length of the MAC, must be 4, 6, 8, 10, 12, 14, or 16.
+                    const BYTE key[],                    // IN  - The AES key for encryption.
+                    int keysize);                        // IN  - The length of the key in bits. Valid values are 128, 192, 256.
+
+// Returns True if the input parameters do not violate any constraint.
+// Use mac_auth to ensure decryption/validation was preformed correctly.
+// If authentication does not succeed, the plaintext is zeroed out. To overwride
+// this, call with mac_auth = NULL. The proper proceedure is to decrypt with
+// authentication enabled (mac_auth != NULL) and make a second call to that
+// ignores authentication explicitly if the first call failes.
+int aes_decrypt_ccm(const BYTE ciphertext[],             // IN  - Ciphertext, the concatination of encrypted plaintext and MAC.
+                    WORD ciphertext_len,                 // IN  - Ciphertext length in bytes.
+                    const BYTE assoc[],                  // IN  - The Associated Data, required for authentication.
+                    unsigned short assoc_len,            // IN  - Associated Data length in bytes.
+                    const BYTE nonce[],                  // IN  - The Nonce to use for decryption, same one as for encryption.
+                    unsigned short nonce_len,            // IN  - Nonce length in bytes.
+                    BYTE plaintext[],                    // OUT - The plaintext that was decrypted. Will need to be large enough to hold ciphertext_len - mac_len.
+                    WORD *plaintext_len,                 // OUT - Length in bytes of the output plaintext, always ciphertext_len - mac_len .
+                    WORD mac_len,                        // IN  - The length of the MAC that was calculated.
+                    int *mac_auth,                       // OUT - TRUE if authentication succeeded, FALSE if it did not. NULL pointer will ignore the authentication.
+                    const BYTE key[],                    // IN  - The AES key for decryption.
+                    int keysize);                        // IN  - The length of the key in BITS. Valid values are 128, 192, 256.
+
+///////////////////
+// Test functions
+///////////////////
+int aes_test();
+int aes_ecb_test();
+int aes_cbc_test();
+int aes_ctr_test();
+int aes_ccm_test();
+
+#endif   // AES_H

lib/crypto-algorithms/sha256.h

@@ -11,13 +11,14 @@
 
 /*************************** HEADER FILES ***************************/
 #include <stddef.h>
+#include <stdint.h>
 
 /****************************** MACROS ******************************/
 #define SHA256_BLOCK_SIZE 32            // SHA256 outputs a 32 byte digest
 
 /**************************** DATA TYPES ****************************/
-typedef unsigned char BYTE;             // 8-bit byte
-typedef unsigned int  WORD;             // 32-bit word, change to "long" for 16-bit machines
+typedef uint8_t BYTE;             // 8-bit byte
+typedef uint32_t  WORD;             // 32-bit word, change to "long" for 16-bit machines
 
 typedef struct {
 	BYTE data[64];

lib/doctest/.clang-format

@@ -0,0 +1,82 @@
+# https://clang.llvm.org/docs/ClangFormatStyleOptions.html
+
+DisableFormat: false
+Language: Cpp
+Standard: Cpp11
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+ColumnLimit: 100
+ReflowComments: false
+SortIncludes: false
+
+AlignConsecutiveAssignments: true
+AlignConsecutiveDeclarations: true
+AlignEscapedNewlinesLeft: false
+AlignOperands: true
+AlignTrailingComments: true
+AlignAfterOpenBracket: true
+DerivePointerAlignment: false
+PointerAlignment: Left
+IndentCaseLabels: true
+ContinuationIndentWidth: 8
+NamespaceIndentation: Inner
+CompactNamespaces: true
+FixNamespaceComments: true
+AccessModifierOffset: -4
+
+SpaceAfterControlStatementKeyword: false
+SpaceAfterCStyleCast: false
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: Never
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: false
+SpacesInCStyleCastParentheses: false
+SpacesInContainerLiterals: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Cpp11BracedListStyle: true
+
+KeepEmptyLinesAtTheStartOfBlocks: false
+MaxEmptyLinesToKeep: 1
+BinPackArguments: true
+BinPackParameters: true
+AlwaysBreakAfterReturnType: None
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakTemplateDeclarations: true
+BreakConstructorInitializersBeforeComma: true
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 8
+
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AllowShortBlocksOnASingleLine: true
+AllowShortCaseLabelsOnASingleLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortFunctionsOnASingleLine: All
+
+BreakBeforeBinaryOperators: false
+BreakBeforeTernaryOperators: false
+BreakStringLiterals: true
+BreakBeforeBraces: Custom
+BraceWrapping:
+    AfterClass: true
+    AfterEnum: true
+    AfterNamespace: false
+    AfterStruct: true
+    AfterUnion: true
+    
+    BeforeCatch: false
+    BeforeElse: false
+    IndentBraces: false
+    AfterFunction: false
+    AfterControlStatement: false
+
+# penalties not thought of yet
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 60
+PenaltyBreakString: 1000
+PenaltyBreakFirstLessLess: 120
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 1000

lib/doctest/.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+trim_trailing_whitespace = true
+end_of_line = lf
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+
+[*.yml]
+indent_size = 2

lib/doctest/.gitattributes

@@ -0,0 +1 @@
+* text=auto

lib/doctest/.github/FUNDING.yml

@@ -0,0 +1,4 @@
+github: onqtam
+patreon: onqtam
+custom: https://www.paypal.me/onqtam/10
+

lib/doctest/.github/issue_template.md

@@ -0,0 +1,29 @@
+## Description
+<!--
+If your issue is a bugreport, this means describing what you did,
+what did you want to happen and what actually did happen.
+
+If your issue is a feature request, describe the feature and why do you
+want it.
+-->
+
+
+### Steps to reproduce
+<!--
+This is only relevant for bug reports, but if you do have one,
+please provide a minimal set of steps to reproduce the problem.
+
+Usually this means providing a small and self-contained code using doctest
+and specifying compiler flags/tools used if relevant.
+-->
+
+
+### Extra information
+<!--
+Fill in any extra information that might be important for your issue.
+
+If your issue is a bugreport, definitely fill out at least the following.
+-->
+* doctest version: **v42.42.42**
+* Operating System: **Joe's discount operating system**
+* Compiler+version: **Hidden Dragon v1.2.3**

lib/doctest/.github/pull_request_template.md

@@ -0,0 +1,26 @@
+<!--
+Make sure the PR is against the dev branch and not master which contains
+the latest stable release. Also make sure to have read CONTRIBUTING.md.
+Please do not submit pull requests changing the single-include `doctest.h`
+file, it is generated from the 2 files in the doctest/parts/ folder.
+-->
+
+
+## Description
+<!--
+Describe the what and the why of your pull request. Remember that these two
+are usually a bit different. As an example, if you have made various changes
+to decrease the number of new strings allocated, that's what. The why probably
+was that you have a large set of tests and found that this speeds them up.
+-->
+
+## GitHub Issues
+<!-- 
+If this PR was motivated by some existing issues, reference them here.
+
+If it is a simple bug-fix, please also add a line like 'Closes #123'
+to your commit message, so that it is automatically closed.
+If it is not, don't, as it might take several iterations for a feature
+to be done properly. If in doubt, leave it open and reference it in the
+PR itself, so that maintainers can decide.
+-->

lib/doctest/.github/workflows/codeql-analysis.yml

@@ -0,0 +1,67 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master ]
+  schedule:
+    - cron: '38 1 * * *'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'cpp' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

lib/doctest/.github/workflows/main.yml

@@ -0,0 +1,490 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  ci:
+    name: ${{ matrix.name }}
+    runs-on: ${{ matrix.os }}
+
+    env:
+      CMAKE_GENERATOR: Ninja
+      ASAN_OPTIONS: strict_string_checks=true:detect_odr_violation=2:detect_stack_use_after_return=true:check_initialization_order=true:strict_init_order=true
+      TSAN_OPTIONS: force_seq_cst_atomics=1
+      CTEST_OUTPUT_ON_FAILURE: ON
+      CTEST_PARALLEL_LEVEL: 2
+      ACTIONS_ALLOW_UNSECURE_COMMANDS: true # because of the set-env calls
+
+    strategy:
+      fail-fast: false
+      matrix:
+        # Github Actions requires a single row to be added to the build matrix.
+        # See https://help.github.com/en/articles/workflow-syntax-for-github-actions.
+        name: [
+          ubuntu-18.04-gcc-4.8,
+          ubuntu-18.04-gcc-4.9,
+          ubuntu-18.04-gcc-5,
+          ubuntu-18.04-gcc-6,
+          ubuntu-18.04-gcc-7,
+          ubuntu-18.04-gcc-8,
+          ubuntu-18.04-gcc-9,
+          ubuntu-latest-gcc-10,
+          ubuntu-18.04-clang-3.5,
+          ubuntu-18.04-clang-3.6,
+          ubuntu-18.04-clang-3.7,
+          ubuntu-18.04-clang-3.8,
+          ubuntu-18.04-clang-3.9,
+          ubuntu-18.04-clang-4.0,
+          ubuntu-18.04-clang-5.0,
+          ubuntu-18.04-clang-6.0,
+          ubuntu-18.04-clang-7,
+          ubuntu-18.04-clang-8,
+          # ubuntu-latest-clang-9,
+          ubuntu-latest-clang-10,
+          # ubuntu-latest-clang-11,
+          windows-2016-cl,
+          windows-2016-clang-cl,
+          windows-2016-clang,
+          # windows-2016-gcc,
+          windows-2019-cl,
+          windows-2019-clang-cl,
+          windows-2019-clang,
+          # windows-2019-gcc,
+          macOS-latest-xcode-11.3,
+        ]
+
+        include:
+          - name: ubuntu-18.04-gcc-4.8
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "4.8"
+
+          - name: ubuntu-18.04-gcc-4.9
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "4.9"
+
+          - name: ubuntu-18.04-gcc-5
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "5"
+
+          - name: ubuntu-18.04-gcc-6
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "6"
+
+          - name: ubuntu-18.04-gcc-7
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "7"
+
+          - name: ubuntu-18.04-gcc-8
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "8"
+
+          - name: ubuntu-18.04-gcc-9
+            os: ubuntu-18.04
+            compiler: gcc
+            version: "9"
+
+          - name: ubuntu-latest-gcc-10
+            os: ubuntu-latest
+            compiler: gcc
+            version: "10"
+
+          - name: ubuntu-18.04-clang-3.5
+            os: ubuntu-18.04
+            compiler: clang
+            version: "3.5"
+
+          - name: ubuntu-18.04-clang-3.6
+            os: ubuntu-18.04
+            compiler: clang
+            version: "3.6"
+
+          - name: ubuntu-18.04-clang-3.7
+            os: ubuntu-18.04
+            compiler: clang
+            version: "3.7"
+
+          - name: ubuntu-18.04-clang-3.8
+            os: ubuntu-18.04
+            compiler: clang
+            version: "3.8"
+
+          - name: ubuntu-18.04-clang-3.9
+            os: ubuntu-18.04
+            compiler: clang
+            version: "3.9"
+
+          - name: ubuntu-18.04-clang-4.0
+            os: ubuntu-18.04
+            compiler: clang
+            version: "4.0"
+
+          - name: ubuntu-18.04-clang-5.0
+            os: ubuntu-18.04
+            compiler: clang
+            version: "5.0"
+
+          - name: ubuntu-18.04-clang-6.0
+            os: ubuntu-18.04
+            compiler: clang
+            version: "6.0"
+
+          - name: ubuntu-18.04-clang-7
+            os: ubuntu-18.04
+            compiler: clang
+            version: "7"
+
+          - name: ubuntu-18.04-clang-8
+            os: ubuntu-18.04
+            compiler: clang
+            version: "8"
+
+          # fails like this: https://github.com/onqtam/doctest/runs/1562896476?check_suite_focus=true
+          # - name: ubuntu-latest-clang-9
+          #   os: ubuntu-latest
+          #   compiler: clang
+          #   version: "9"
+
+          - name: ubuntu-latest-clang-10
+            os: ubuntu-latest
+            compiler: clang
+            version: "10"
+
+          # fails like this: https://github.com/onqtam/doctest/runs/1562896512?check_suite_focus=true
+          # - name: ubuntu-latest-clang-11
+          #   os: ubuntu-latest
+          #   compiler: clang
+          #   version: "11"
+
+          - name: windows-2016-cl
+            os: windows-2016
+            compiler: cl
+
+          - name: windows-2016-clang-cl
+            os: windows-2016
+            compiler: clang-cl
+
+          - name: windows-2016-clang
+            os: windows-2016
+            compiler: clang
+
+          - name: windows-2019-cl
+            os: windows-2019
+            compiler: cl
+
+          # fails to install it...
+          # - name: windows-2016-gcc
+          #   os: windows-2016
+          #   compiler: gcc
+
+          - name: windows-2019-clang-cl
+            os: windows-2019
+            compiler: clang-cl
+
+          - name: windows-2019-clang
+            os: windows-2019
+            compiler: clang
+
+          # fails to install it...
+          # - name: windows-2019-gcc
+          #   os: windows-2019
+          #   compiler: gcc
+
+          - name: macOS-latest-xcode-11.3
+            os: macOS-10.15
+            compiler: xcode
+            version: "11.3"
+
+    steps:
+      - uses: actions/checkout@v1
+
+      - name: Install (Linux)
+        if: runner.os == 'Linux'
+        run: |
+          # CMake 3.15 allows specifying the generator using the CMAKE_GENERATOR
+          # environment variable.
+          curl -sSL https://github.com/Kitware/CMake/releases/download/v3.15.4/cmake-3.15.4-Linux-x86_64.tar.gz -o cmake.tar.gz
+          sudo tar xf cmake.tar.gz --strip 1 -C /usr/local
+
+          # Required for libc6-dbg:i386 and g++-multilib packages which are
+          # needed for x86 builds.
+          sudo dpkg --add-architecture i386
+
+          # clang-3.7 and earlier are not available in Bionic anymore so we get
+          # them from the Xenial repositories instead.
+          sudo add-apt-repository "deb http://dk.archive.ubuntu.com/ubuntu/ xenial main"
+          sudo add-apt-repository "deb http://dk.archive.ubuntu.com/ubuntu/ xenial universe"
+
+          # LLVM 9 is not in Bionic's repositories so we add the official LLVM repository.
+          if [ "${{ matrix.compiler }}" = "clang" ] && [ "${{ matrix.version }}" = "9" ]; then
+            sudo add-apt-repository "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main"
+          fi
+
+          sudo apt-get update
+          # sudo apt-get install libopenmpi-dev
+          # sudo apt-get install openmpi-bin
+
+          # libc6-dbg:i386 is required for running valgrind on x86.
+          sudo apt-get install -y ninja-build valgrind libc6-dbg:i386
+
+          if [ "${{ matrix.compiler }}" = "gcc" ]; then
+            sudo apt-get install -y g++-${{ matrix.version }} g++-${{ matrix.version }}-multilib
+            echo "::set-env name=CC::gcc-${{ matrix.version }}"
+            echo "::set-env name=CXX::g++-${{ matrix.version }}"
+          else
+            sudo apt-get install -y clang-${{ matrix.version }} g++-multilib
+            echo "::set-env name=CC::clang-${{ matrix.version }}"
+            echo "::set-env name=CXX::clang++-${{ matrix.version }}"
+          fi
+
+      - name: Install (macOS)
+        if: runner.os == 'macOS'
+        run: |
+          brew install cmake ninja
+
+          if [ "${{ matrix.compiler }}" = "gcc" ]; then
+            brew install gcc@${{ matrix.version }}
+            echo "::set-env name=CC::gcc-${{ matrix.version }}"
+            echo "::set-env name=CXX::g++-${{ matrix.version }}"
+          else
+            ls -ls /Applications/
+            sudo xcode-select -switch /Applications/Xcode_${{ matrix.version }}.app
+            echo "::set-env name=CC::clang"
+            echo "::set-env name=CXX::clang++"
+          fi
+
+      - name: Install (Windows)
+        if: runner.os == 'Windows'
+        shell: powershell
+        run: |
+          Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
+          scoop install ninja --global
+
+          if ("${{ matrix.compiler }}".StartsWith("clang")) {
+            scoop install llvm --global
+          }
+
+          if ("${{ matrix.compiler }}" -eq "gcc") {
+            # Chocolatey GCC is broken on the windows-2019 image.
+            # See: https://github.com/DaanDeMeyer/doctest/runs/231595515
+            # See: https://github.community/t5/GitHub-Actions/Something-is-wrong-with-the-chocolatey-installed-version-of-gcc/td-p/32413
+            scoop install gcc --global
+            echo "::set-env name=CC::gcc"
+            echo "::set-env name=CXX::g++"
+          } elseif ("${{ matrix.compiler }}" -eq "clang") {
+            echo "::set-env name=CC::clang"
+            echo "::set-env name=CXX::clang++"
+          } else {
+            echo "::set-env name=CC::${{ matrix.compiler }}"
+            echo "::set-env name=CXX::${{ matrix.compiler }}"
+          }
+
+          # Scoop modifies the PATH so we make the modified PATH global.
+          echo "::set-env name=PATH::$env:PATH"
+
+      - name: Configure ASAN/UBSAN
+        if: runner.os == 'Linux' || runner.os == 'macOS'
+        run: |
+          # https://stackoverflow.com/a/37939589/11900641
+          function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }
+
+          # Disable sanitizers in configurations where we know they are buggy.
+
+          # TODO: Move these conditions to the if clause if Github Actions ever
+          # adds support for comparing versions.
+          # See: https://github.community/t5/GitHub-Actions/Allow-comparing-versions-in-if-conditions/m-p/33912#M1710
+
+          if [ "${{ runner.os }}" = "Linux" ] && \
+             [ "${{ matrix.compiler }}" = "gcc" ] && \
+             [ $(version ${{ matrix.version }}) -le $(version "5.0") ]; then
+            exit 0
+          fi
+
+          if [ "${{ runner.os }}" = "Linux" ] && \
+             [ "${{ matrix.compiler }}" = "clang" ] && \
+             [ $(version ${{ matrix.version }}) -le $(version "6.0") ]; then
+            exit 0
+          fi
+
+          if [ "${{ runner.os }}" = "macOS" ] && \
+             [ "${{ matrix.compiler }}" = "xcode" ] && \
+             [ $(version ${{ matrix.version }}) -le $(version "9.4.1") ]; then
+            exit 0
+          fi
+
+          if [ "${{ runner.os }}" = "macOS" ] && \
+             [ "${{ matrix.compiler }}" = "gcc" ]; then
+            exit 0
+          fi
+
+          ASAN_UBSAN_FLAGS="-fsanitize=address,undefined -fno-omit-frame-pointer"
+
+          # Link statically against ASAN libraries because dynamically linking
+          # against ASAN libraries causes problems when using dlopen on Ubuntu.
+          # See: https://github.com/DaanDeMeyer/doctest/runs/249002713
+          if [ "${{ runner.os }}" = "Linux" ] && [ "${{ matrix.compiler }}" = "gcc" ]; then
+            ASAN_UBSAN_FLAGS="$ASAN_UBSAN_FLAGS -static-libasan"
+          fi
+
+          # Compiling in bash on Windows doesn't work and powershell doesn't
+          # exit on non-zero exit codes so we're forced to use cmd which means
+          # we don't have a cross platform way to access environment variables.
+          # To circumvent this, we put the sanitizer flags in an environment
+          # variable that is automatically picked up by CMake.
+          echo "::set-env name=CXXFLAGS::$ASAN_UBSAN_FLAGS"
+
+      - name: Configure TSAN
+        if: runner.os == 'Linux' || runner.os == 'macOS'
+        run: |
+          # https://stackoverflow.com/a/37939589/11900641
+          function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }
+
+          if [ "${{ runner.os }}" = "Linux" ] && \
+             [ "${{ matrix.compiler }}" = "gcc" ] && \
+             [ $(version ${{ matrix.version }}) -le $(version "6.0") ]; then
+            exit 0
+          fi
+
+          if [ "${{ runner.os }}" = "Linux" ] && \
+             [ "${{ matrix.compiler }}" = "clang" ] && \
+             [ $(version ${{ matrix.version }}) -le $(version "3.9") ]; then
+            exit 0
+          fi
+
+          if [ "${{ runner.os }}" = "macOS" ] && \
+             [ "${{ matrix.compiler }}" = "gcc" ]; then
+            exit 0
+          fi
+
+          TSAN_FLAGS="-fsanitize=thread -pie -fPIE"
+
+          if [ "${{ runner.os }}" = "Linux" ] && [ "${{ matrix.compiler }}" = "gcc" ]; then
+            TSAN_FLAGS="$TSAN_FLAGS -static-libtsan"
+          fi
+
+          # The thread sanitizers build does not run on Windows so we can just
+          # use bash syntax to access the TSAN flags in the thread sanitizers
+          # build step.
+          echo "::set-env name=TSAN_FLAGS::$TSAN_FLAGS"
+
+      - name: Configure x64
+        if: runner.os == 'Windows'
+        run: .github\workflows\vsenv.bat -arch=x64 -host_arch=x64
+
+      - name: Build & Test Debug x64
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DDOCTEST_TEST_MODE=COMPARE
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Release x64
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Release -DDOCTEST_TEST_MODE=COMPARE
+          cmake --build build
+          cd build
+          ctest
+
+      # Valgrind doesn't support the latest macOS versions.
+      # `-DCMAKE_CXX_FLAGS=""` overrides CXXFLAGS (disables sanitizers).
+
+      - name: Build & Test Debug x64 Valgrind
+        if: runner.os == 'Linux'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="" -DDOCTEST_TEST_MODE=VALGRIND
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Release x64 Valgrind
+        if: runner.os == 'Linux'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="" -DDOCTEST_TEST_MODE=VALGRIND
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Debug x64 Thread Sanitizers
+        if: runner.os == 'Linux' || runner.os == 'macOS'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="$TSAN_FLAGS" -DDOCTEST_TEST_MODE=COMPARE
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Debug x64 without RTTI
+        if: runner.os == 'Linux' || runner.os == 'macOS'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="-fno-rtti" -DDOCTEST_TEST_MODE=COMPARE
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build x64 Debug without exceptions
+        if: runner.os == 'Linux' || runner.os == 'macOS'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="-fno-exceptions -DDOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS"
+          cmake --build build
+
+      # MinGW x86 tests fail on Windows: https://github.com/DaanDeMeyer/doctest/runs/240600881.
+      # MacOS doesn't support x86 from Xcode 10 onwards.
+
+      - name: Configure x86
+        shell: pwsh
+        if: (runner.os == 'Windows' && matrix.compiler != 'gcc') || runner.os == 'Linux'
+        run: |
+          if ("${{ runner.os }}" -eq "Windows") {
+            & .github\workflows\vsenv.bat -arch=x86 -host_arch=x64
+          }
+
+          if ("${{ matrix.compiler }}" -notcontains "cl") {
+            echo "::set-env name=CXXFLAGS::$env:CXXFLAGS -m32"
+          }
+
+      - name: Build & Test Debug x86
+        if: (runner.os == 'Windows' && matrix.compiler != 'gcc') || runner.os == 'Linux'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DDOCTEST_TEST_MODE=COMPARE
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Release x86
+        if: (runner.os == 'Windows' && matrix.compiler != 'gcc') || runner.os == 'Linux'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Release -DDOCTEST_TEST_MODE=COMPARE
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Debug x86 Valgrind
+        if: runner.os == 'Linux'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="-m32" -DDOCTEST_TEST_MODE=VALGRIND
+          cmake --build build
+          cd build
+          ctest
+
+      - name: Build & Test Release x86 Valgrind
+        if: runner.os == 'Linux'
+        run: |
+          cmake -E remove_directory build
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="-m32" -DDOCTEST_TEST_MODE=VALGRIND
+          cmake --build build
+          cd build
+          ctest

lib/doctest/.github/workflows/vsenv.bat

@@ -0,0 +1,17 @@
+@echo off
+
+SET VSWHERE="C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere"
+
+:: See https://github.com/microsoft/vswhere/wiki/Find-VC
+for /f "usebackq delims=*" %%i in (`%VSWHERE% -latest -property installationPath`) do (
+  call "%%i"\Common7\Tools\vsdevcmd.bat %*
+)
+
+:: Loop over all environment variables and make them global using set-env.
+:: See: https://help.github.com/en/articles/development-tools-for-github-actions#set-an-environment-variable-set-env
+:: See: https://stackoverflow.com/questions/39183272/loop-through-all-environmental-variables-and-take-actions-depending-on-prefix
+setlocal
+for /f "delims== tokens=1,2" %%a in ('set') do (
+  echo ::set-env name=%%a::%%b
+)
+endlocal

lib/doctest/.gitignore

@@ -0,0 +1,40 @@
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# Text garbage
+*.ii
+*.s
+
+# My garbage :)
+Win32/
+x64/
+doctest_with_main.dir/
+scripts/bench/project/*
+scripts/bench/catch*.hpp
+scripts/bench/results.txt
+build/
+build-mingw/
+*.pyc
+*vscode*
+.idea/
+cmake-build-*/
+bazel-*

lib/doctest/.travis.yml

@@ -0,0 +1,413 @@
+# # this file is HEAVILY influenced by https://github.com/boostorg/hana/blob/master/.travis.yml
+
+# dist: trusty
+# language: c++
+
+# notifications:
+#   email: false
+#   # gitter
+#   webhooks:
+#     urls: https://webhooks.gitter.im/e/10941dd1c67e5e967706
+#     on_success: change
+#     on_failure: always
+# git:
+#   depth: 500
+
+# # both apt and ccache make the builds slower...
+# #cache:
+# #  - apt
+# #  - ccache
+
+# env:
+#   global:
+# #    - USE_CCACHE=1
+# #    - CCACHE_SLOPPINESS=pch_defines,time_macros
+# #    - CCACHE_COMPRESS=1
+# #    - CCACHE_MAXSIZE=200M
+# #    - CCACHE_CPP2=1
+#     - CMAKE_OPTIONS_GLOBAL="-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
+
+# addons:
+#   coverity_scan:
+#     # COVERITY_SCAN_TOKEN added as env var in travis project
+#     project:
+#       name: onqtam/doctest
+#     notification_email: vik.kirilov@gmail.com
+#     build_command: clang++ scripts/hello_world.cpp -I doctest
+#     branch_pattern: coverity_scan
+#   # these apt sources will be referenced later (by using *name)
+#   apt:
+#     sources: &apt_sources
+#       - ubuntu-toolchain-r-test
+#       - llvm-toolchain-trusty
+#       - llvm-toolchain-precise-3.7
+#       - llvm-toolchain-trusty-3.9
+#       - llvm-toolchain-trusty-4.0
+#       - llvm-toolchain-trusty-5.0
+#       - llvm-toolchain-trusty-6.0
+#       - llvm-toolchain-trusty-7
+#       - llvm-toolchain-trusty-8
+#       - llvm-toolchain-trusty-9
+#       - llvm-toolchain-trusty-10
+
+# compiler: clang
+# os: linux
+
+# matrix:
+#   include:
+#     # coverage
+#     - env: COMPILER=g++ CODE_COVERAGE=true
+#       compiler: gcc
+#       addons:
+#         apt:
+#           packages: ["lcov"]
+
+#     # static code analysis
+#     - env: COMPILER=clang++-4.0 STATIC_CODE_ANALYSIS=true
+#       addons: &static_analysis
+#         apt:
+#           packages: ["clang-4.0", "clang-tidy-4.0", "cppcheck"]
+#           sources: *apt_sources
+
+#     # GCC 4.8
+#     - env: COMPILER=g++-4.8 HAS_ASAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan" # TSAN broken for some time - seg faults
+#       compiler: gcc
+#       addons: &gcc48
+#         apt:
+#           packages: ["g++-4.8", "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 4.9
+#     - env: COMPILER=g++-4.9 HAS_ASAN=true HAS_UBSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan" # TSAN broken for some time - seg faults
+#       compiler: gcc
+#       addons: &gcc49
+#         apt:
+#           packages: ["g++-4.9", "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 5
+#     - env: COMPILER=g++-5 HAS_ASAN=true HAS_UBSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan" # TSAN broken for some time - seg faults
+#       compiler: gcc
+#       addons: &gcc5
+#         apt:
+#           packages: ["g++-5",   "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 6
+#     - env: COMPILER=g++-6 HAS_ASAN=true HAS_UBSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan" # TSAN broken for some time - seg faults
+#       compiler: gcc
+#       addons: &gcc6
+#         apt:
+#           packages: ["g++-6",   "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 7
+#     - env: COMPILER=g++-7 HAS_ASAN=true HAS_UBSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan" # TSAN broken for some time - seg faults
+#       compiler: gcc
+#       sudo: required      # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &gcc7
+#         apt:
+#           packages: ["g++-7",   "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 8
+#     - env: COMPILER=g++-8 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan"
+#       compiler: gcc
+#       sudo: required      # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &gcc8
+#         apt:
+#           packages: ["g++-8",   "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 9
+#     - env: COMPILER=g++-9 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan"
+#       compiler: gcc
+#       sudo: required      # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &gcc9
+#         apt:
+#           packages: ["g++-9",   "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # GCC 10
+#     - env: COMPILER=g++-10 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan"
+#       compiler: gcc
+#       sudo: required      # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &gcc10
+#         apt:
+#           packages: ["g++-10",   "valgrind", "libc6-dbg", "linux-libc-dev"]
+#           sources: *apt_sources
+
+#     # Clang 3.5
+#     - env: COMPILER=clang++-3.5 HAS_ASAN=true HAS_UBSAN=true # no HAS_TSAN - see errors: https://travis-ci.org/onqtam/doctest/builds/417926743
+#       addons: &clang35
+#         apt:
+#           packages: ["clang-3.5", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 3.6
+#     - env: COMPILER=clang++-3.6 HAS_ASAN=true HAS_UBSAN=true # no HAS_TSAN - see errors: https://travis-ci.org/onqtam/doctest/builds/417926743
+#       addons: &clang36
+#         apt:
+#           packages: ["clang-3.6", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 3.7
+#     - env: COMPILER=clang++-3.7
+#       addons: &clang37
+#         apt:
+#           packages: ["clang-3.7", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 3.8
+#     - env: COMPILER=clang++-3.8 HAS_ASAN=true HAS_UBSAN=true # no HAS_TSAN - see errors: https://travis-ci.org/onqtam/doctest/builds/417926743
+#       addons: &clang38
+#         apt:
+#           packages: ["clang-3.8", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 3.9
+#     - env: COMPILER=clang++-3.9 # no HAS_ASAN/HAS_UBSAN - see errors: https://travis-ci.org/onqtam/doctest/jobs/386263910
+#       addons: &clang39
+#         apt:
+#           packages: ["clang-3.9", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 4.0
+#     - env: COMPILER=clang++-4.0 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required      # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang40
+#         apt:
+#           packages: ["clang-4.0", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 5.0
+#     - env: COMPILER=clang++-5.0 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required      # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang50
+#         apt:
+#           packages: ["clang-5.0", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 6.0
+#     - env: COMPILER=clang++-6.0 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang60
+#         apt:
+#           packages: ["clang-6.0", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 7
+#     - env: COMPILER=clang++-7 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang7
+#         apt:
+#           packages: ["clang-7", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 8
+#     - env: COMPILER=clang++-8 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang8
+#         apt:
+#           packages: ["clang-8", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 9
+#     - env: COMPILER=clang++-9 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang9
+#         apt:
+#           packages: ["clang-9", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Clang 10
+#     - env: COMPILER=clang++-10 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required # see this issue for more details: https://github.com/travis-ci/travis-ci/issues/9033
+#       addons: &clang9
+#         apt:
+#           packages: ["clang-10", "valgrind", "libc6-dbg", "g++-6"]
+#           sources: *apt_sources
+
+#     # Xcode 9.4 Clang
+#     - env: COMPILER=clang++ HAS_UBSAN=true HAS_TSAN=true # no HAS_ASAN - errors since using thread_local even in single-threaded cases - see errors: https://travis-ci.org/onqtam/doctest/builds/417181981
+#       osx_image: xcode9.4
+#       os: osx
+
+#     # Xcode 10.0 Clang
+#     - env: COMPILER=clang++ HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       osx_image: xcode10
+#       os: osx
+
+#     # Xcode 10.2 Clang
+#     - env: COMPILER=clang++ HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       osx_image: xcode10.2
+#       os: osx
+
+#     # Xcode 11.2 Clang
+#     - env: COMPILER=clang++ HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       osx_image: xcode11.2
+#       os: osx
+
+#     # OSX LLVM-GCC
+#     - env: COMPILER=g++ HAS_ASAN=true HAS_TSAN=true
+#       compiler: gcc
+#       osx_image: xcode10
+#       os: osx
+
+#   allow_failures:
+
+#     # static code analysis
+#     - env: COMPILER=clang++-4.0 STATIC_CODE_ANALYSIS=true
+
+#     # seems to not be present yet: https://travis-ci.org/github/onqtam/doctest/jobs/688097537
+#     # GCC 10
+#     - env: COMPILER=g++-10 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true SANITIZER_CXX_FLAGS="-fuse-ld=gold -static-libasan" TSAN_CXX_FLAGS="-ltsan"
+#       compiler: gcc
+#       sudo: required
+
+#     # Clang 10
+#     - env: COMPILER=clang++-10 HAS_ASAN=true HAS_UBSAN=true HAS_TSAN=true
+#       sudo: required
+
+# install:
+#   - if [[ "${CODE_COVERAGE}" == "true" ]]; then gem install coveralls-lcov ; fi
+
+#   ############################################################################
+#   # All the dependencies are installed in ${TRAVIS_BUILD_DIR}/deps/
+#   ############################################################################
+
+#   # Make a dir for all
+#   - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
+#   - mkdir -p ${DEPS_DIR} && cd ${DEPS_DIR}
+
+#   # Install a recent CMake
+#   - |
+#     if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
+#       CMAKE_URL="http://www.cmake.org/files/v3.7/cmake-3.7.2-Linux-x86_64.tar.gz"
+#       mkdir cmake && travis_retry wget --no-check-certificate --quiet -O - ${CMAKE_URL} | tar --strip-components=1 -xz -C cmake
+#       export PATH=${DEPS_DIR}/cmake/bin:${PATH}
+#     fi
+
+#   # Install OCLint
+#   - |
+#     if [[ "${STATIC_CODE_ANALYSIS}" = "true" ]]; then
+#       OCLINT_URL="https://github.com/oclint/oclint/releases/download/v0.12/oclint-0.12-x86_64-linux-3.13.0-112-generic.tar.gz"
+#       mkdir oclint && travis_retry wget --no-check-certificate --quiet -O - ${OCLINT_URL} | tar --strip-components=1 -xz -C oclint
+#       export PATH=${DEPS_DIR}/oclint/bin:${PATH}
+#     fi
+
+#   # Go back to ${TRAVIS_BUILD_DIR}
+#   - cd ${TRAVIS_BUILD_DIR}
+
+#   ############################################################################
+#   # Install stuff with homebrew under OSX
+#   ############################################################################
+
+#   - |
+#     if [[ "${TRAVIS_OS_NAME}" == "osx" ]]; then
+#       brew update
+#       # brew install ccache
+#       # brew install valgrind
+#       # cmake
+#       if brew list -1 | grep -q "^cmake\$"; then
+#         brew outdated cmake || brew upgrade cmake
+#       else
+#         brew install cmake
+#       fi
+#     fi
+
+#   - export CXX="${COMPILER}"
+# #  - export CXX="ccache ${COMPILER}"
+# #  - ccache -s
+
+# before_script:
+#   - ${CXX} --version
+
+# script:
+#   # coverage
+#   - |
+#     if [[ "${CODE_COVERAGE}" = "true" ]]; then
+#       cmake ${CMAKE_OPTIONS_GLOBAL} ${CMAKE_OPTIONS} -DCMAKE_CXX_COMPILER=${CXX} -DCMAKE_CXX_FLAGS="-fprofile-arcs -ftest-coverage -std=c++0x" -DCMAKE_BUILD_TYPE=Debug . || exit 1
+#       make -k -j2 || exit 1
+#       ctest -j2 --output-on-failure || exit 1
+
+#       lcov -d . -c -o coverage.info                                      # parse coverage data
+#       lcov -r coverage.info "/usr*"                     -o coverage.info # remove data for system headers
+#       lcov -r coverage.info "$(readlink -f examples)/*" -o coverage.info # remove data for .cpp files
+#       lcov -r coverage.info "$(readlink -f scripts)/*"  -o coverage.info # remove data for .cpp files
+#       lcov -l coverage.info                                              # just list a short summary of the results
+#       coveralls-lcov --repo-token=${COVERALLS_REPO_TOKEN} coverage.info  # upload results
+
+#       # do not continue with other build configurations after that
+#       exit
+#     fi
+
+#   # static code analysis
+#   - |
+#     if [[ "${STATIC_CODE_ANALYSIS}" = "true" ]]; then
+#       # setup a test file "doctest.cpp" that is the header + a test case at the end
+#       echo "#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN\n" >> doctest.cpp
+#       cat doctest/doctest.h >> doctest.cpp
+#       echo -e "TEST_CASE(\"\") {\n\tint a = 6;\n\tSUBCASE(\"\") a = 5;\n\tCAPTURE(a);\n\tCHECK(a == 6);\n}\n" >> doctest.cpp
+
+#       # cppcheck
+#       cppcheck doctest.cpp --enable=all --suppress=unmatchedSuppression --suppress=missingIncludeSystem --suppress=unusedFunction --suppress=functionConst --inline-suppr --platform=unix64 --inconclusive --std=posix --inconclusive -v --error-exitcode=1 --template "{file}({line}): {severity} ({id}): {message}"
+
+#       # oclint
+#       oclint doctest.cpp -disable-rule=ShortVariableName -disable-rule=LongLine -disable-rule=LongMethod -disable-rule=HighNcssMethod -disable-rule=LongVariableName -disable-rule=HighCyclomaticComplexity -disable-rule=HighNPathComplexity -disable-rule=UnusedLocalVariable -disable-rule=DoubleNegative -disable-rule=MultipleUnaryOperator -disable-rule=DeepNestedBlock || exit 1
+
+#       # clang-tidy
+#       cd scripts/playground
+#       cmake ${CMAKE_OPTIONS_GLOBAL} ${CMAKE_OPTIONS} -DCMAKE_CXX_COMPILER=${CXX} . || exit 1
+#       clang-tidy-4.0 -std=c++11 -p=. *.cpp -header-filter=.* -warnings-as-errors=* -checks='*,-misc-misplaced-widening-cast,-misc-macro-parentheses,-misc-definitions-in-headers,-misc-unused-parameters,-llvm-header-guard,-llvm-include-order,-google-readability-braces-around-statements,-google-runtime-references,-google-readability-todo,-google-build-using-namespace,-google-explicit-constructor,-cert-err58-cpp,-cppcoreguidelines-pro-type-vararg,-cppcoreguidelines-pro-bounds-pointer-arithmetic,-cppcoreguidelines-pro-bounds-array-to-pointer-decay,-cppcoreguidelines-special-member-functions,-cppcoreguidelines-pro-type-reinterpret-cast,-cppcoreguidelines-pro-bounds-constant-array-index,-cppcoreguidelines-pro-type-member-init,-cppcoreguidelines-pro-type-union-access,-clang-analyzer-security.insecureAPI.strcpy,-modernize-loop-convert,-modernize-use-auto,-modernize-use-bool-literals,-readability-braces-around-statements,-readability-named-parameter,-readability-else-after-return,-readability-redundant-declaration,-readability-implicit-bool-cast,-clang-diagnostic-variadic-macros,-clang-diagnostic-c++11-compat' || exit 1
+
+#       # do not continue with other build configurations after that
+#       exit
+#     fi
+
+#   # initial run with options
+#   - cmake ${CMAKE_OPTIONS_GLOBAL} ${CMAKE_OPTIONS} -DCMAKE_CXX_COMPILER=${CXX} .
+
+#   # set the common CXX flags
+#   - export CXX_FLAGS="${CXX_FLAGS} -std=c++0x"
+
+#   # debug
+#   - cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="${CXX_FLAGS}" .
+#   - make clean && make -k -j2
+#   - if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then cmake -DDOCTEST_TEST_MODE=VALGRIND . && ctest -j2 --output-on-failure ; fi
+#   - cmake -DDOCTEST_TEST_MODE=COMPARE . && ctest -j2 --output-on-failure
+#   # release
+#   - cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="${CXX_FLAGS}" .
+#   - make clean && make -k -j2
+#   - if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then cmake -DDOCTEST_TEST_MODE=VALGRIND . && ctest -j2 --output-on-failure ; fi
+#   - cmake -DDOCTEST_TEST_MODE=COMPARE . && ctest -j2 --output-on-failure
+
+#   # sanitizers - again Debug/Release configs through address/undefined/thread sanitizers
+#   # on separate commands because when something fails I want to see which one exactly
+#   - cmake -DDOCTEST_TEST_MODE=NORMAL .
+
+#   - export ASAN_OPTIONS=verbosity=2:strict_string_checks=true:detect_odr_violation=2:detect_stack_use_after_return=true:check_initialization_order=true:strict_init_order=true
+#   - if [[ "${HAS_ASAN}" = "true" ]];  then cmake -DCMAKE_BUILD_TYPE=Debug   -DCMAKE_CXX_FLAGS="${CXX_FLAGS} ${SANITIZER_CXX_FLAGS} -g -fno-omit-frame-pointer -fsanitize=address"                             . && make clean && make -k -j2 && ctest -j2 --output-on-failure ; fi
+#   - if [[ "${HAS_ASAN}" = "true" ]];  then cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="${CXX_FLAGS} ${SANITIZER_CXX_FLAGS} -g -fno-omit-frame-pointer -fsanitize=address"                             . && make clean && make -k -j2 && ctest -j2 --output-on-failure ; fi
+
+#   - export UBSAN_OPTIONS=verbosity=2
+#   - if [[ "${HAS_UBSAN}" = "true" ]]; then cmake -DCMAKE_BUILD_TYPE=Debug   -DCMAKE_CXX_FLAGS="${CXX_FLAGS} ${SANITIZER_CXX_FLAGS} -g -fno-omit-frame-pointer -fsanitize=undefined"                           . && make clean && make -k -j2 && ctest -j2 --output-on-failure ; fi
+#   - if [[ "${HAS_UBSAN}" = "true" ]]; then cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="${CXX_FLAGS} ${SANITIZER_CXX_FLAGS} -g -fno-omit-frame-pointer -fsanitize=undefined"                           . && make clean && make -k -j2 && ctest -j2 --output-on-failure ; fi
+
+#   - export TSAN_OPTIONS=verbosity=2:force_seq_cst_atomics=1
+#   - if [[ "${HAS_TSAN}" = "true" ]];  then cmake -DCMAKE_BUILD_TYPE=Debug   -DCMAKE_CXX_FLAGS="${CXX_FLAGS} ${SANITIZER_CXX_FLAGS} -g -fno-omit-frame-pointer -fsanitize=thread -pie -fPIE ${TSAN_CXX_FLAGS}" . && make clean && make -k -j2 && ctest -j2 --output-on-failure ; fi
+#   - if [[ "${HAS_TSAN}" = "true" ]];  then cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="${CXX_FLAGS} ${SANITIZER_CXX_FLAGS} -g -fno-omit-frame-pointer -fsanitize=thread -pie -fPIE ${TSAN_CXX_FLAGS}" . && make clean && make -k -j2 && ctest -j2 --output-on-failure ; fi
+
+#   # test without rtti - just Debug
+#   - cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="${CXX_FLAGS} -fno-rtti" .
+#   - make clean && make -k -j2
+#   - cmake -DDOCTEST_TEST_MODE=COMPARE . && ctest -j2 --output-on-failure
+
+#   # test only compilation without exceptions - just Debug
+#   - cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="${CXX_FLAGS} -fno-exceptions -DDOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS" .
+#   - make clean && make -k -j2
+
+# #  - ccache -s
+
+# #after_script:
+# #  - cat compile_commands.json