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Repository: trojan-gfw/trojan
Branch: master
Commit: 3e7bb9aecdc6
Files: 71
Total size: 226.1 KB
Directory structure:
gitextract_1foy4gep/
├── .github/
│ └── ISSUE_TEMPLATE/
│ ├── bug_report.md
│ └── feature_request.md
├── .gitignore
├── .gitpod.Dockerfile
├── .gitpod.yml
├── CMakeLists.txt
├── CONTRIBUTING.md
├── CONTRIBUTORS.md
├── Dockerfile
├── LICENSE
├── README.md
├── SECURITY.md
├── azure-pipelines.yml
├── cmake/
│ └── FindMySQL.cmake
├── docs/
│ ├── README.md
│ ├── _config.yml
│ ├── authenticator.md
│ ├── build.md
│ ├── config.md
│ ├── overview.md
│ ├── protocol.md
│ ├── trojan.1
│ └── usage.md
├── examples/
│ ├── client.json-example
│ ├── forward.json-example
│ ├── nat.json-example
│ ├── server.json-example
│ └── trojan.service-example
├── scripts/
│ └── getcert.py
├── src/
│ ├── core/
│ │ ├── authenticator.cpp
│ │ ├── authenticator.h
│ │ ├── config.cpp
│ │ ├── config.h
│ │ ├── log.cpp
│ │ ├── log.h
│ │ ├── service.cpp
│ │ ├── service.h
│ │ ├── version.cpp
│ │ └── version.h
│ ├── main.cpp
│ ├── proto/
│ │ ├── socks5address.cpp
│ │ ├── socks5address.h
│ │ ├── trojanrequest.cpp
│ │ ├── trojanrequest.h
│ │ ├── udppacket.cpp
│ │ └── udppacket.h
│ ├── session/
│ │ ├── clientsession.cpp
│ │ ├── clientsession.h
│ │ ├── forwardsession.cpp
│ │ ├── forwardsession.h
│ │ ├── natsession.cpp
│ │ ├── natsession.h
│ │ ├── serversession.cpp
│ │ ├── serversession.h
│ │ ├── session.cpp
│ │ ├── session.h
│ │ ├── udpforwardsession.cpp
│ │ └── udpforwardsession.h
│ └── ssl/
│ ├── ssldefaults.cpp
│ ├── ssldefaults.h
│ ├── sslsession.cpp
│ └── sslsession.h
└── tests/
├── .gitignore
└── LinuxSmokeTest/
├── README.md
├── basic.sh
├── client.json
├── common.sh
├── fake-client.json
├── fake-client.sh
├── forward.json
└── server.json
================================================
FILE CONTENTS
================================================
================================================
FILE: .github/ISSUE_TEMPLATE/bug_report.md
================================================
---
name: Bug report
about: Create a report to help us improve
title: "[BUG]"
labels: bug
assignees: GreaterFire
---
- [ ] I certify that I have read the contributing guidelines and I acknowledge if I don't follow the format below, or I'm using an old version of trojan, or I apparently fail to provide sufficient information (such as logs, specific numbers), or I don't check this box, my issue will be closed immediately without any notice.
**Trojan Version**
The version of trojan you are using.
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Logs**
If applicable, add logs to help explain your problem.
**Environment**
Where are you running trojan? What is your proxy set up?
**Additional context**
Add any other context about the problem here.
================================================
FILE: .github/ISSUE_TEMPLATE/feature_request.md
================================================
---
name: Feature request
about: Suggest an idea for this project
title: "[Feature Request]"
labels: enhancement
assignees: GreaterFire
---
- [ ] I certify that I have read the contributing guidelines and I acknowledge if I don't follow the format below or I don't check this box, my issue will be closed immediately without any notice.
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Is this problem relevant to what trojan should care about?**
Trojan is a protocol implementation, not a full-fledged proxy client. Features such as custom routing will not be accepted.
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.
================================================
FILE: .gitignore
================================================
# Prerequisites
*.d
# Compiled Object files
*.slo
*.lo
*.o
*.obj
# Precompiled Headers
*.gch
*.pch
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
# Fortran module files
*.mod
*.smod
# Compiled Static libraries
*.lai
*.la
*.a
*.lib
# Executables
*.exe
*.out
*.app
trojan
# Config files
*.json
# Key and certificate files
*.pem
# Systemd service files
*.service
# Cmake files
CMakeCache.txt
CMakeFiles
CMakeScripts
Testing
Makefile
cmake_install.cmake
install_manifest.txt
compile_commands.json
CTestTestfile.cmake
build/
================================================
FILE: .gitpod.Dockerfile
================================================
FROM gitpod/workspace-full
USER gitpod
RUN sudo apt-get update && \
sudo apt-get install -y \
build-essential \
cmake \
libboost-system-dev \
libboost-program-options-dev \
libssl-dev \
default-libmysqlclient-dev
================================================
FILE: .gitpod.yml
================================================
image:
file: .gitpod.Dockerfile
================================================
FILE: CMakeLists.txt
================================================
cmake_minimum_required(VERSION 3.7.2)
project(trojan CXX)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif()
set(CMAKE_CXX_STANDARD 11)
if(MSVC)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
else()
add_definitions(-Wall -Wextra)
endif()
file(GLOB_RECURSE CPP_LIST src/*.cpp)
add_executable(trojan ${CPP_LIST})
target_include_directories(trojan PRIVATE src)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
target_link_libraries(trojan ${CMAKE_THREAD_LIBS_INIT})
find_package(Boost 1.66.0 REQUIRED COMPONENTS system program_options)
target_include_directories(trojan PRIVATE ${Boost_INCLUDE_DIR})
target_link_libraries(trojan ${Boost_LIBRARIES})
if(MSVC)
add_definitions(-DBOOST_DATE_TIME_NO_LIB)
endif()
find_package(OpenSSL 1.1.0 REQUIRED)
target_include_directories(trojan PRIVATE ${OPENSSL_INCLUDE_DIR})
target_link_libraries(trojan ${OPENSSL_LIBRARIES})
if(OPENSSL_VERSION VERSION_GREATER_EQUAL 1.1.1)
option(ENABLE_SSL_KEYLOG "Build with SSL KeyLog support" ON)
if(ENABLE_SSL_KEYLOG)
add_definitions(-DENABLE_SSL_KEYLOG)
endif()
option(ENABLE_TLS13_CIPHERSUITES "Build with TLS1.3 ciphersuites support" ON)
if(ENABLE_TLS13_CIPHERSUITES)
add_definitions(-DENABLE_TLS13_CIPHERSUITES)
endif()
endif()
option(ENABLE_MYSQL "Build with MySQL support" ON)
if(ENABLE_MYSQL)
find_package(MySQL REQUIRED)
target_include_directories(trojan PRIVATE ${MYSQL_INCLUDE_DIR})
target_link_libraries(trojan ${MYSQL_LIBRARIES})
add_definitions(-DENABLE_MYSQL)
endif()
option(FORCE_TCP_FASTOPEN "Force build with TCP Fast Open support" OFF)
if(FORCE_TCP_FASTOPEN)
add_definitions(-DTCP_FASTOPEN=23 -DTCP_FASTOPEN_CONNECT=30)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL Linux)
option(ENABLE_NAT "Build with NAT support" ON)
if(ENABLE_NAT)
add_definitions(-DENABLE_NAT)
endif()
option(ENABLE_REUSE_PORT "Build with SO_REUSEPORT support" ON)
if(ENABLE_REUSE_PORT)
add_definitions(-DENABLE_REUSE_PORT)
endif()
endif()
if(APPLE)
find_library(CoreFoundation CoreFoundation)
find_library(Security Security)
target_link_libraries(trojan ${CoreFoundation} ${Security})
endif()
if(WIN32)
target_link_libraries(trojan wsock32 ws2_32 crypt32)
else()
set(SYSTEMD_SERVICE AUTO CACHE STRING "Install systemd service")
set_property(CACHE SYSTEMD_SERVICE PROPERTY STRINGS AUTO ON OFF)
set(SYSTEMD_SERVICE_PATH /lib/systemd/system CACHE PATH "Systemd service path")
if(SYSTEMD_SERVICE STREQUAL AUTO)
if(EXISTS /usr/lib/systemd/system)
set(SYSTEMD_SERVICE ON)
set(SYSTEMD_SERVICE_PATH /usr/lib/systemd/system CACHE PATH "Systemd service path" FORCE)
elseif(EXISTS /lib/systemd/system)
set(SYSTEMD_SERVICE ON)
set(SYSTEMD_SERVICE_PATH /lib/systemd/system CACHE PATH "Systemd service path" FORCE)
endif()
endif()
include(GNUInstallDirs)
install(TARGETS trojan DESTINATION ${CMAKE_INSTALL_BINDIR})
install(FILES examples/server.json-example DESTINATION ${CMAKE_INSTALL_FULL_SYSCONFDIR}/trojan RENAME config.json)
set(DEFAULT_CONFIG ${CMAKE_INSTALL_FULL_SYSCONFDIR}/trojan/config.json CACHE STRING "Default config path")
add_definitions(-DDEFAULT_CONFIG="${DEFAULT_CONFIG}")
install(FILES docs/trojan.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
install(DIRECTORY docs/ DESTINATION ${CMAKE_INSTALL_DOCDIR} FILES_MATCHING PATTERN "*.md")
install(DIRECTORY examples DESTINATION ${CMAKE_INSTALL_DOCDIR} FILES_MATCHING PATTERN "*.json-example")
if(SYSTEMD_SERVICE STREQUAL ON)
set(CONFIG_NAME config)
configure_file(examples/trojan.service-example trojan.service)
set(CONFIG_NAME %i)
configure_file(examples/trojan.service-example trojan@.service)
install(FILES ${CMAKE_BINARY_DIR}/trojan.service ${CMAKE_BINARY_DIR}/trojan@.service DESTINATION ${SYSTEMD_SERVICE_PATH})
endif()
enable_testing()
add_test(NAME LinuxSmokeTest-basic
COMMAND bash ${CMAKE_SOURCE_DIR}/tests/LinuxSmokeTest/basic.sh ${CMAKE_BINARY_DIR}/trojan)
add_test(NAME LinuxSmokeTest-fake-client
COMMAND bash ${CMAKE_SOURCE_DIR}/tests/LinuxSmokeTest/fake-client.sh ${CMAKE_BINARY_DIR}/trojan)
SET_TESTS_PROPERTIES(LinuxSmokeTest-fake-client PROPERTIES DEPENDS "LinuxSmokeTest-basic")
endif()
================================================
FILE: CONTRIBUTING.md
================================================
# Contributing
I want to first thank you for your interests in contributing to the Trojan project. Your contributions are much appreciated. To ensure an effective and efficient communication environment, here are some guidelines you should adhere to when you are considering contributing.
## Issues
Issues in this repository are for bug reports and feature requests, and for these purposes **only**. Irrelevant content, such as usage problems or server configuration issues, should not be discussed here. The developers will, at their discretion, either answer or ignore and close this kind of issues without any notice. The **required** communication language in this repository is English.
If you would like to file a bug report, you **must** use the bug report template and follow the instructions inside it. If you do not do so, or if the problem you reported is not considered by the developers a bug, your issue might be closed immediately.
If you would like to file a feature request, you also **must** use the feature request template and follow the instructions inside it. Note that we are trying to keep this project as small as possible because it is the core of the trojan ecosystem and will be included in other projects. For a feature to be considered, make sure that the feature you request is **really necessary** to be included in this very project. Also, we will not consider adding a dependency to the project unless it is **absolutely necessary**. If you do not do the above, your issue might be closed immediately.
## Pull Requests
Pull requests are very welcomed. However, due to the reasons we just talked about, we will only accept features that are **really necessary** for this project. Bug fixes and security-related fixes have more chances to be reviewed by the developers.
For contributors who make frequent and high-quality contributions, there is a chance that they'll be invited to join our organization.
================================================
FILE: CONTRIBUTORS.md
================================================
# Contributors
- [a-wing](https://github.com/a-wing)
- Add Debian build instructions in the documentation.
- [cybmp3](https://github.com/cybmp3)
- Add MySQL SSL support.
- [du5](https://github.com/du5)
- Update OpenSSL version in Azure Pipelines config.
- [felixonmars](https://github.com/felixonmars)
- Fix incorrect systemd service path in the documentation.
- [ffftwo](https://github.com/ffftwo)
- Throw an exception when `run_type` is wrong.
- [GreaterFire](https://github.com/GreaterFire)
- Author of this project.
- [JonathanHouten](https://github.com/JonathanHouten)
- Fix a parameter type error in the `CertOpenSystemStore` call.
- [karuboniru](https://github.com/karuboniru)
- Make tests serial to avoid a race condition.
- [KCCat](https://github.com/KCCat)
- Fix an ambiguity in the documentation.
- [keur](https://github.com/keur)
- Replace deprecated SHA224 functions with `EVP`.
- [klzgrad](https://github.com/klzgrad)
- Add Linux smoke test.
- [LimiQS](https://github.com/LimiQS)
- Refine the config documentation.
- [MargaretteMoss](https://github.com/MargaretteMoss)
- Add client verification to MySQL SSL connection.
- [PragmaTwice](https://github.com/PragmaTwice)
- List source files automatically in CMakeLists.txt.
- [Qv2ray-dev](https://github.com/Qv2ray-dev)
- Fix Azure Pipelines config.
- Add log callback.
- [WeidiDeng](https://github.com/WeidiDeng)
- Fix incorrect Debian dependency in the documentation.
- [WillyPillow](https://github.com/WillyPillow)
- Add `alpn_port_override` functionality.
- [wongsyrone](https://github.com/wongsyrone)
- Add conditional MySQL compilation.
- Remove `SSL_CTX_set_ecdh_auto(native_context, 1)` call in new versions of OpenSSL.
- Fix a typo in the documentation.
- Add a functionality to log received signals.
- Fix a bug that causes trojan to crash if the connection is terminated before a session is established.
- Add android log facility.
- Refer to `basic_stream_socket` instead of `basic_socket` in SSL sockets.
- Cancel async tasks when stopping the service.
- Fix fd leak.
- Print OpenSSL compile-time version and build flags.
- Optimize APIs and other clean-ups.
- Update certificate verification API.
- [xsm1997](https://github.com/xsm1997)
- Add `SO_REUSEPORT` support.
- Add TLS1.3 ciphersuites support.
- [yiailake](https://github.com/yiailake)
- Add support for gitpod.
- [zhangsan946](https://github.com/zhangsan946)
- Add macOS keychain support.
- [zhyncs](https://github.com/zhyncs)
- Fix clang-tidy warnings.
================================================
FILE: Dockerfile
================================================
FROM alpine:3.11
COPY . trojan
RUN apk add --no-cache --virtual .build-deps \
build-base \
cmake \
boost-dev \
openssl-dev \
mariadb-connector-c-dev \
&& (cd trojan && cmake . && make -j $(nproc) && strip -s trojan \
&& mv trojan /usr/local/bin) \
&& rm -rf trojan \
&& apk del .build-deps \
&& apk add --no-cache --virtual .trojan-rundeps \
libstdc++ \
boost-system \
boost-program_options \
mariadb-connector-c
WORKDIR /config
CMD ["trojan", "config.json"]
================================================
FILE: LICENSE
================================================
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
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The licenses for most software and other practical works are designed
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the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
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================================================
FILE: README.md
================================================
# trojan
[](https://dev.azure.com/GreaterFire/Trojan-GFW/_build/latest?definitionId=5&branchName=master)
An unidentifiable mechanism that helps you bypass GFW.
Trojan features multiple protocols over `TLS` to avoid both active/passive detections and ISP `QoS` limitations.
Trojan is not a fixed program or protocol. It's an idea, an idea that imitating the most common service, to an extent that it behaves identically, could help you get across the Great FireWall permanently, without being identified ever. We are the GreatER Fire; we ship Trojan Horses.
## Documentations
An online documentation can be found [here](https://trojan-gfw.github.io/trojan/).
Installation guide on various platforms can be found in the [wiki](https://github.com/trojan-gfw/trojan/wiki/Binary-&-Package-Distributions).
## Contributing
See [CONTRIBUTING.md](CONTRIBUTING.md).
## Dependencies
- [CMake](https://cmake.org/) >= 3.7.2
- [Boost](http://www.boost.org/) >= 1.66.0
- [OpenSSL](https://www.openssl.org/) >= 1.1.0
- [libmysqlclient](https://dev.mysql.com/downloads/connector/c/)
## License
[GPLv3](LICENSE)
================================================
FILE: SECURITY.md
================================================
# Security Policy
## Supported Version
The only version that is supported by Trojan-GFW is the latest version.
## Reporting a Vulnerability
To report a vulnerability, please contact GreaterFire@protonmail.com. You can make it secure by encrypting with PGP:
```
-----BEGIN PGP PUBLIC KEY BLOCK-----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=Z2PM
-----END PGP PUBLIC KEY BLOCK-----
```
================================================
FILE: azure-pipelines.yml
================================================
stages:
- stage: Build
jobs:
- job: Linux
pool:
vmImage: ubuntu-latest
container:
image: trojangfw/centos-build:latest
steps:
- script: |
set -euo pipefail
echo 'target_link_libraries(trojan dl)' >> CMakeLists.txt
cmake -DMYSQL_INCLUDE_DIR=/usr/local/include/mariadb -DMYSQL_LIBRARY=/usr/local/lib/mariadb/libmysqlclient.a -DDEFAULT_CONFIG=config.json -DFORCE_TCP_FASTOPEN=ON -DBoost_USE_STATIC_LIBS=ON .
make
strip -s trojan
- publish: $(System.DefaultWorkingDirectory)/trojan
artifact: LinuxBinary
- job: macOS
pool:
vmImage: macOS-latest
steps:
- script: |
set -euo pipefail
brew install boost openssl@1.1
cmake -DBoost_USE_STATIC_LIBS=ON -DOPENSSL_INCLUDE_DIR=/usr/local/opt/openssl@1.1/include -DOPENSSL_CRYPTO_LIBRARY=/usr/local/opt/openssl@1.1/lib/libcrypto.a -DOPENSSL_SSL_LIBRARY=/usr/local/opt/openssl@1.1/lib/libssl.a -DDEFAULT_CONFIG=config.json -DENABLE_MYSQL=OFF -DCMAKE_OSX_DEPLOYMENT_TARGET=10.13 .
make
strip -SXTx trojan
- publish: $(System.DefaultWorkingDirectory)/trojan
artifact: macOSBinary
- job: Windows
pool:
vmImage: windows-latest
steps:
- bash: |
set -euo pipefail
curl -LO https://slproweb.com/download/Win64OpenSSL-1_1_1h.exe
powershell ".\\Win64OpenSSL-1_1_1h.exe /silent /sp- /suppressmsgboxes /DIR='C:\\Program Files\\OpenSSL-Win64'"
cmake -DBoost_INCLUDE_DIR="${BOOST_ROOT_1_72_0}/include" -DBoost_USE_STATIC_LIBS=ON -DOPENSSL_ROOT_DIR='C:/Program Files/OpenSSL-Win64' -DOPENSSL_USE_STATIC_LIBS=ON -DENABLE_MYSQL=OFF .
cmake --build . --config Release
- publish: $(System.DefaultWorkingDirectory)/Release/trojan.exe
artifact: WindowsBinary
- stage: Test
jobs:
- job: Linux
pool:
vmImage: ubuntu-latest
steps:
- download: current
artifact: LinuxBinary
- script: |
set -uo pipefail
BINARY="$PIPELINE_WORKSPACE/LinuxBinary/trojan"
chmod +x "$BINARY"
mkdir results
cp -r "$(tests/LinuxSmokeTest/basic.sh "$BINARY")" results/basic
cp -r "$(tests/LinuxSmokeTest/fake-client.sh "$BINARY")" results/fake-client
env:
PIPELINE_WORKSPACE: $(Pipeline.Workspace)
- publish: $(System.DefaultWorkingDirectory)/results
artifact: LinuxTest
- stage: Package
jobs:
- job: Linux
pool:
vmImage: ubuntu-latest
steps:
- download: current
artifact: LinuxBinary
- script: |
set -euo pipefail
BINARY="$PIPELINE_WORKSPACE/LinuxBinary/trojan"
chmod +x "$BINARY"
mkdir trojan
cp "$BINARY" trojan/trojan
cp -r examples CONTRIBUTORS.md LICENSE README.md trojan
cp examples/server.json-example trojan/config.json
tar cf trojan-linux-amd64.tar trojan
xz trojan-linux-amd64.tar
env:
PIPELINE_WORKSPACE: $(Pipeline.Workspace)
- publish: $(System.DefaultWorkingDirectory)/trojan-linux-amd64.tar.xz
artifact: LinuxRelease
- job: macOS
pool:
vmImage: macOS-latest
steps:
- download: current
artifact: macOSBinary
- script: |
set -euo pipefail
BINARY="$PIPELINE_WORKSPACE/macOSBinary/trojan"
chmod +x "$BINARY"
mkdir trojan
cp "$BINARY" trojan/trojan
cp -r examples CONTRIBUTORS.md LICENSE README.md trojan
cp examples/client.json-example trojan/config.json
rm trojan/examples/nat.json-example trojan/examples/trojan.service-example
cat > trojan/start.command <<EOF
#!/bin/sh
cd "\$(dirname "\$0")"
./trojan
EOF
chmod +x trojan/start.command
zip -r9 trojan-macos.zip trojan
env:
PIPELINE_WORKSPACE: $(Pipeline.Workspace)
- publish: $(System.DefaultWorkingDirectory)/trojan-macos.zip
artifact: macOSRelease
- job: Windows
pool:
vmImage: windows-latest
steps:
- download: current
artifact: WindowsBinary
- bash: |
set -euo pipefail
BINARY="$PIPELINE_WORKSPACE/WindowsBinary/trojan.exe"
mkdir trojan
cp "$BINARY" trojan/trojan.exe
cp -r examples CONTRIBUTORS.md LICENSE README.md trojan
cp examples/client.json-example trojan/config.json
rm trojan/examples/nat.json-example trojan/examples/trojan.service-example
7z a -mx=9 trojan-win.zip trojan
env:
PIPELINE_WORKSPACE: $(Pipeline.Workspace)
- publish: $(System.DefaultWorkingDirectory)/trojan-win.zip
artifact: WindowsRelease
================================================
FILE: cmake/FindMySQL.cmake
================================================
# - Find mysqlclient
# Find the native MySQL includes and library
#
# MYSQL_INCLUDE_DIR - where to find mysql.h, etc.
# MYSQL_LIBRARIES - List of libraries when using MySQL.
# MYSQL_FOUND - True if MySQL found.
IF (MYSQL_INCLUDE_DIR)
# Already in cache, be silent
SET(MYSQL_FIND_QUIETLY TRUE)
ENDIF (MYSQL_INCLUDE_DIR)
FIND_PATH(MYSQL_INCLUDE_DIR mysql.h
/usr/local/include/mysql
/usr/include/mysql
)
SET(MYSQL_NAMES mysqlclient mysqlclient_r)
FIND_LIBRARY(MYSQL_LIBRARY
NAMES ${MYSQL_NAMES}
PATHS /usr/lib /usr/local/lib
PATH_SUFFIXES mysql
)
IF (MYSQL_INCLUDE_DIR AND MYSQL_LIBRARY)
SET(MYSQL_FOUND TRUE)
SET( MYSQL_LIBRARIES ${MYSQL_LIBRARY} )
ELSE (MYSQL_INCLUDE_DIR AND MYSQL_LIBRARY)
SET(MYSQL_FOUND FALSE)
SET( MYSQL_LIBRARIES )
ENDIF (MYSQL_INCLUDE_DIR AND MYSQL_LIBRARY)
IF (MYSQL_FOUND)
IF (NOT MYSQL_FIND_QUIETLY)
MESSAGE(STATUS "Found MySQL: ${MYSQL_LIBRARY}")
ENDIF (NOT MYSQL_FIND_QUIETLY)
ELSE (MYSQL_FOUND)
IF (MYSQL_FIND_REQUIRED)
MESSAGE(STATUS "Looked for MySQL libraries named ${MYSQL_NAMES}.")
MESSAGE(FATAL_ERROR "Could NOT find MySQL library")
ENDIF (MYSQL_FIND_REQUIRED)
ENDIF (MYSQL_FOUND)
MARK_AS_ADVANCED(
MYSQL_LIBRARY
MYSQL_INCLUDE_DIR
)
================================================
FILE: docs/README.md
================================================
# Trojan Documentation
Trojan is an unidentifiable mechanism for bypassing GFW. This documentation introduces the trojan protocol, explains its underlying ideas, and provides a guide to it.
## Contents
- [Overview](overview)
- [The Trojan Protocol](protocol)
- [Config](config)
- [Authenticator](authenticator)
- [Build](build)
- [Usage](usage)
================================================
FILE: docs/_config.yml
================================================
theme: jekyll-theme-cayman
show_downloads: true
================================================
FILE: docs/authenticator.md
================================================
# Authenticator
Trojan servers can authenticate users according to not only passwords in the config file but also entries in a MySQL (MariaDB) database. To turn this functionality on, set `enabled` field in the MySQL config to `true` and correctly configure the server address, credentials, and etc. If you would like to connect to the database securely, you can fill the `ca` field indicating the MySQL server's CA file and optionally fill the `key` and `cert` fields indicating the client's private key and certificate:
```json
"mysql": {
"enabled": true,
"server_addr": "127.0.0.1",
"server_port": 3306,
"database": "trojan",
"username": "trojan",
"password": "",
"key": "",
"cert": "",
"ca": ""
}
```
The table has to be named `users`. An example table structure could be:
```sql
CREATE TABLE users (
id INT UNSIGNED NOT NULL AUTO_INCREMENT,
username VARCHAR(64) NOT NULL,
password CHAR(56) NOT NULL,
quota BIGINT NOT NULL DEFAULT 0,
download BIGINT UNSIGNED NOT NULL DEFAULT 0,
upload BIGINT UNSIGNED NOT NULL DEFAULT 0,
PRIMARY KEY (id),
INDEX (password)
);
```
Note that trojan will only read/write the `password`, `quota`, `download`, and `upload` fields. Other fields exist for management convenience. The passwords stored in the table have to be hashed by SHA224 for efficiency and security reasons.
Upon receiving a Trojan Request, **if the server fails to match the password with any passwords set in the config file**, it will query the database for the user. If it succeeds, trojan will check whether `download + upload < quota`; if so, the connection is granted. **A negative `quota` value means infinite quota.** After a connection is closed, trojan will increment `download` and `upload` fields of that user by the amount of data the user has used.
The unit of `quota`, `download`, and `upload` fields is Byte.
[Homepage](.) | [Prev Page](config) | [Next Page](build)
================================================
FILE: docs/build.md
================================================
# Build
We'll only cover the build process on Linux since we will be providing Windows and macOS binaries. Building trojan on every platform is similar.
## Dependencies
Install these dependencies before you build (note that the test has some [additional dependencies](https://github.com/trojan-gfw/trojan/blob/master/tests/LinuxSmokeTest/README.md)):
- [CMake](https://cmake.org/) >= 3.7.2
- [Boost](http://www.boost.org/) >= 1.66.0
- [OpenSSL](https://www.openssl.org/) >= 1.1.0
- [libmysqlclient](https://dev.mysql.com/downloads/connector/c/)
For Debian users, run `sudo apt -y install build-essential cmake libboost-system-dev libboost-program-options-dev libssl-dev default-libmysqlclient-dev` to install all the necessary dependencies.
## Clone
Type in
```bash
git clone https://github.com/trojan-gfw/trojan.git
cd trojan/
```
to clone the project and go into the directory.
## Build and Install
Type in
```bash
mkdir build
cd build/
cmake ..
make
ctest
sudo make install
```
to build, test, and install trojan. If everything goes well you'll be able to use trojan.
The `cmake ..` command can be extended with the following options:
- `-DDEFAULT_CONFIG=/path/to/default/config.json`: the default path trojan will look for config (defaults to `${CMAKE_INSTALL_FULL_SYSCONFDIR}/trojan/config.json`).
- `ENABLE_MYSQL`
- `-DENABLE_MYSQL=ON`: build with MySQL support (default).
- `-DENABLE_MYSQL=OFF`: build without MySQL support.
- `ENABLE_NAT` (Only on Linux)
- `-DENABLE_NAT=ON`: build with NAT support (default).
- `-DENABLE_NAT=OFF`: build without NAT support.
- `ENABLE_REUSE_PORT` (Only on Linux)
- `-DENABLE_REUSE_PORT=ON`: build with `SO_REUSEPORT` support (default).
- `-DENABLE_REUSE_PORT=OFF`: build without `SO_REUSEPORT` support.
- `ENABLE_SSL_KEYLOG` (OpenSSL >= 1.1.1)
- `-DENABLE_SSL_KEYLOG=ON`: build with SSL KeyLog support (default).
- `-DENABLE_SSL_KEYLOG=OFF`: build without SSL KeyLog support.
- `ENABLE_TLS13_CIPHERSUITES` (OpenSSL >= 1.1.1)
- `-DENABLE_TLS13_CIPHERSUITES=ON`: build with TLS1.3 ciphersuites support (default).
- `-DENABLE_TLS13_CIPHERSUITES=OFF`: build without TLS1.3 ciphersuites support.
- `FORCE_TCP_FASTOPEN`
- `-DFORCE_TCP_FASTOPEN=ON`: force build with `TCP_FASTOPEN` support.
- `-DFORCE_TCP_FASTOPEN=OFF`: build with `TCP_FASTOPEN` support based on system capabilities (default).
- `SYSTEMD_SERVICE`
- `-DSYSTEMD_SERVICE=AUTO`: detect systemd automatically and decide whether to install service (default).
- `-DSYSTEMD_SERVICE=ON`: install systemd service unconditionally.
- `-DSYSTEMD_SERVICE=OFF`: don't install systemd service unconditionally.
- `-DSYSTEMD_SERVICE_PATH=/path/to/systemd/system`: the path to which the systemd service will be installed (defaults to `/lib/systemd/system`).
After installation, config examples will be installed to `${CMAKE_INSTALL_DOCDIR}/examples/` and a server config will be installed to `${CMAKE_INSTALL_FULL_SYSCONFDIR}/trojan/config.json`.
[Homepage](.) | [Prev Page](authenticator) | [Next Page](usage)
================================================
FILE: docs/config.md
================================================
# Config
In this page, we will look at the config file of trojan. Trojan uses [`JSON`](https://en.wikipedia.org/wiki/JSON) as the format of the config.
**Note: all "\\" in the paths under Windows MUST be replaced with "/".**
## A valid client.json
```json
{
"run_type": "client",
"local_addr": "127.0.0.1",
"local_port": 1080,
"remote_addr": "example.com",
"remote_port": 443,
"password": [
"password1"
],
"log_level": 1,
"ssl": {
"verify": true,
"verify_hostname": true,
"cert": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-SHA:AES256-SHA:DES-CBC3-SHA",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"sni": "",
"alpn": [
"h2",
"http/1.1"
],
"reuse_session": true,
"session_ticket": false,
"curves": ""
},
"tcp": {
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
}
}
```
- `run_type`: running trojan as `client`
- `local_addr`: a `SOCKS5` server interface will be bound to the specified interface. Feel free to change this to ``0.0.0.0``, ``::1``, ``::`` or other addresses, if you know what you are doing.
- `local_port`: a `SOCKS5` interface will be bound to this port
- `remote_addr`: server address (hostname)
- `remote_port`: server port
- `password`: password used for verification (only the first password in the array will be used)
- `log_level`: how much log to dump. 0: ALL; 1: INFO; 2: WARN; 3: ERROR; 4: FATAL; 5: OFF.
- `ssl`: `SSL` specific configurations
- `verify`: whether to verify `SSL` certificate **STRONGLY RECOMMENDED**
- `verify_hostname`: whether to verify `SSL` hostname (specified in the `sni` field) **STRONGLY RECOMMENDED**
- `cert`: if `verify` is set to `true`, the same certificate used by the server or a collection of `CA` certificates could be provided. If you leave this field blank, `OpenSSL` will try to look for a system `CA` store and will be likely to fail. Certificates can be retrieved with [this simple Python script](https://github.com/trojan-gfw/trojan/blob/master/scripts/getcert.py).
- `cipher`: a cipher list to send and use
- `cipher_tls13`: a cipher list for TLS 1.3 to use
- `sni`: the Server Name Indication field in the `SSL` handshake. If left blank, it will be set to `remote_addr`.
- `alpn`: a list of `ALPN` protocols to send
- `reuse_session`: whether to reuse `SSL` session
- `session_ticket`: whether to use session tickets for session resumption
- `curves`: `ECC` curves to send and use
- `tcp`: `TCP` specific configurations
- `no_delay`: whether to disable Nagle's algorithm
- `keep_alive`: whether to enable TCP Keep Alive
- `reuse_port`: whether to enable TCP port reuse (kernel support required)
- `fast_open`: whether to enable TCP Fast Open (kernel support required)
- `fast_open_qlen`: the server's limit on the size of the queue of TFO requests that have not yet completed the three-way handshake
## A valid forward.json
This forward config is for port forwarding through a trojan connection. Everything is the same as the client config, except for `target_addr` and `target_port`, which point to the destination endpoint, and `udp_timeout`, which controls how long (in seconds) a UDP session will last in idle.
PROTIP: If you simply want to redirect a raw TCP connection, you can use `iptables` or `socat` to do that. The forward mode is not for this purpose.
```json
{
"run_type": "forward",
"local_addr": "127.0.0.1",
"local_port": 5901,
"remote_addr": "example.com",
"remote_port": 443,
"target_addr": "127.0.0.1",
"target_port": 5901,
"password": [
"password1"
],
"udp_timeout": 60,
"log_level": 1,
"ssl": {
"verify": true,
"verify_hostname": true,
"cert": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-SHA:AES256-SHA:DES-CBC3-SHA",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"sni": "",
"alpn": [
"h2",
"http/1.1"
],
"reuse_session": true,
"session_ticket": false,
"curves": ""
},
"tcp": {
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
}
}
```
## A valid nat.json
The NAT config is for transparent proxy. You'll need to [setup iptables rules](https://github.com/shadowsocks/shadowsocks-libev/tree/v3.3.1#transparent-proxy) to use it. Everything is the same as the client config.
```json
{
"run_type": "nat",
"local_addr": "127.0.0.1",
"local_port": 12345,
"remote_addr": "example.com",
"remote_port": 443,
"password": [
"password1"
],
"log_level": 1,
"ssl": {
"verify": true,
"verify_hostname": true,
"cert": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-SHA:AES256-SHA:DES-CBC3-SHA",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"sni": "",
"alpn": [
"h2",
"http/1.1"
],
"reuse_session": true,
"session_ticket": false,
"curves": ""
},
"tcp": {
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
}
}
```
## A valid server.json
```json
{
"run_type": "server",
"local_addr": "0.0.0.0",
"local_port": 443,
"remote_addr": "127.0.0.1",
"remote_port": 80,
"password": [
"password1",
"password2"
],
"log_level": 1,
"ssl": {
"cert": "/path/to/certificate.crt",
"key": "/path/to/private.key",
"key_password": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"prefer_server_cipher": true,
"alpn": [
"http/1.1"
],
"alpn_port_override": {
"h2": 81
},
"reuse_session": true,
"session_ticket": false,
"session_timeout": 600,
"plain_http_response": "",
"curves": "",
"dhparam": ""
},
"tcp": {
"prefer_ipv4": false,
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
},
"mysql": {
"enabled": false,
"server_addr": "127.0.0.1",
"server_port": 3306,
"database": "trojan",
"username": "trojan",
"password": "",
"key": "",
"cert": "",
"ca": ""
}
}
```
- `run_type`: running trojan as `server`
- `local_addr`: trojan server will be bound to the specified interface. Feel free to change this to `::` or other addresses, if you know what you are doing.
- `local_port`: trojan server will be bound to this port
- `remote_addr`: the endpoint address that trojan server will connect to when encountering [other protocols](protocol#other-protocols)
- `remote_port`: the endpoint port that trojan server will connect when encountering [other protocols](protocol#other-protocols)
- `password`: an array of passwords used for verification
- `log_level`: how much log to dump. 0: ALL; 1: INFO; 2: WARN; 3: ERROR; 4: FATAL; 5: OFF.
- `ssl`: `SSL` specific configurations
- `cert`: server certificate **STRONGLY RECOMMENDED TO BE SIGNED BY A CA**. It's preferred to use the full chain certificate here instead of the certificate alone.
- `key`: private key file for encryption
- `key_password`: password of the private key file
- `cipher`: a cipher list to use
- `cipher_tls13`: a cipher list for TLS 1.3 to use
- `prefer_server_cipher`: whether to prefer server cipher list in a connection
- `alpn`: a list of `ALPN` protocols to reply
- `alpn_port_override`: overrides the remote port to the specified value if an `ALPN` is matched. Useful for running NGINX with HTTP/1.1 and HTTP/2 Cleartext on different ports.
- `reuse_session`: whether to reuse `SSL` session
- `session_ticket`: whether to use session tickets for session resumption
- `session_timeout`: if `reuse_session` is set to `true`, specify `SSL` session timeout
- `plain_http_response`: respond to plain http request with this file (raw TCP)
- `curves`: `ECC` curves to use
- `dhparam`: if left blank, default (RFC 3526) dhparam will be used, otherwise the specified dhparam file will be used
- `tcp`: `TCP` specific configurations
- `prefer_ipv4`: whether to connect to the IPv4 address when there are both IPv6 and IPv4 addresses for a domain
- `no_delay`: whether to disable Nagle's algorithm
- `keep_alive`: whether to enable TCP Keep Alive
- `reuse_port`: whether to enable TCP port reuse (kernel support required)
- `fast_open`: whether to enable TCP Fast Open (kernel support required)
- `fast_open_qlen`: the server's limit on the size of the queue of TFO requests that have not yet completed the three-way handshake
- `mysql`: see [Authenticator](authenticator)
[Homepage](.) | [Prev Page](protocol) | [Next Page](authenticator)
================================================
FILE: docs/overview.md
================================================
# Overview
On penetrating GFW, people assume that strong encryption and random obfuscation may cheat GFW's filtration mechanism. However, trojan implements the direct opposite: it imitates the most common protocol across the wall, `HTTPS`, to trick GFW into thinking that it is `HTTPS`.
The [next page](protocol) introduces the trojan protocol and how it hides itself from active and passive detections.
[Homepage](.) | [Next Page](protocol)
================================================
FILE: docs/protocol.md
================================================
# The Trojan Protocol
We will now show how a trojan server will react to a **valid Trojan Protocol** and **other protocols** (possibly `HTTPS` or any other probes).
## Valid Trojan Protocol
When a trojan client connects to a server, it first performs a **real** `TLS` handshake. If the handshake succeeds, all subsequent traffic will be protected by `TLS`; otherwise, the server will close the connection immediately as any `HTTPS` server would. (Trojan now also supports nginx-like response to plain HTTP requests.) Then the client sends the following structure:
```
+-----------------------+---------+----------------+---------+----------+
| hex(SHA224(password)) | CRLF | Trojan Request | CRLF | Payload |
+-----------------------+---------+----------------+---------+----------+
| 56 | X'0D0A' | Variable | X'0D0A' | Variable |
+-----------------------+---------+----------------+---------+----------+
where Trojan Request is a SOCKS5-like request:
+-----+------+----------+----------+
| CMD | ATYP | DST.ADDR | DST.PORT |
+-----+------+----------+----------+
| 1 | 1 | Variable | 2 |
+-----+------+----------+----------+
where:
o CMD
o CONNECT X'01'
o UDP ASSOCIATE X'03'
o ATYP address type of following address
o IP V4 address: X'01'
o DOMAINNAME: X'03'
o IP V6 address: X'04'
o DST.ADDR desired destination address
o DST.PORT desired destination port in network octet order
```
More information on `SOCKS5` requests can be found [here](https://tools.ietf.org/html/rfc1928).
If the connection is a `UDP ASSOCIATE`, then each `UDP` packet has the following format:
```
+------+----------+----------+--------+---------+----------+
| ATYP | DST.ADDR | DST.PORT | Length | CRLF | Payload |
+------+----------+----------+--------+---------+----------+
| 1 | Variable | 2 | 2 | X'0D0A' | Variable |
+------+----------+----------+--------+---------+----------+
```
When the server receives the first data packet, it checks if the hashed password is correct and the Trojan Request is valid. If not, the protocol is considered "other protocols" (see next section). Note that the first packet will have payload appended. This avoids length pattern detection and may reduce the number of packets to be sent.
If the request is valid, the trojan server connects to the endpoint indicated by the `DST.ADDR` and `DST.PORT` field and opens a direct tunnel between the endpoint and trojan client.
(Trojan client is simply a Trojan Protocol-`SOCKS5` converter. There is no detail worth illustrating.)
## Other Protocols
Because typically a trojan server is to be assumed to be an `HTTPS` server, the listening socket is always a `TLS` socket. After performing `TLS` handshake, if the trojan server decides that the traffic is "other protocols", it opens a tunnel between a preset endpoint (by default it is `127.0.0.1:80`, the local `HTTP` server) to the client so the preset endpoint takes the control of the decrypted `TLS` traffic.
## Anti-detection
### Active Detection
All connection without correct structure and password will be redirected to a preset endpoint, so the trojan server behaves exactly the same as that endpoint (by default `HTTP`) if a suspicious probe connects (or just a fan of you connecting to your blog XD).
### Passive Detection
Because the traffic is protected by `TLS` (it is users' responsibility to use a valid certificate), if you are visiting an `HTTP` site, the traffic looks the same as `HTTPS` (there is only one `RTT` after `TLS` handshake); if you are not visiting an `HTTP` site, then the traffic looks the same as `HTTPS` kept alive or `WebSocket`. Because of this, trojan can also bypass ISP `QoS` limitations.
For more information, go to [Issue #14](https://github.com/trojan-gfw/trojan/issues/14).
[Homepage](.) | [Prev Page](overview) | [Next Page](config)
================================================
FILE: docs/trojan.1
================================================
.TH TROJAN 1 "June 2020" "version 1.16.0"
.SH NAME
trojan \- an unidentifiable mechanism that helps you bypass GFW
.SH SYNOPSIS
.B trojan
[\fB\-htv\fR] [\fB\-l\fR \fILOG\fR] [\fB\-k\fR \fIKEYLOG\fR] [[\fB\-c\fR] \fICONFIG\fR]
.SH DESCRIPTION
.B trojan
is an unidentifiable mechanism that helps you bypass GFW. It will load the config file located in
.I CONFIG
and start either a proxy client or a proxy server.
.SH OPTIONS
.TP
.BR \-c, " " \-\-config=\fICONFIG\fR
Set the config file to be loaded. Default is \fI/etc/trojan/config.json\fR.
.TP
.BR \-h, " " \-\-help
Print help message.
.TP
.BR \-k, " " \-\-keylog=\fIKEYLOG\fR
Set the keylog file to be written.
.TP
.BR \-l, " " \-\-log=\fILOG\fR
Set the log file to be written. If not specified, the log will be outputted to stderr.
.TP
.BR \-t, " " \-\-test
Test the config file, without starting a server.
.TP
.BR \-v, " " \-\-version
Print version and build info.
.SH FILES
.TP
.IR /etc/trojan/config.json
The default config file. See <https://trojan\-gfw.github.io/trojan/config> for details.
.SH SEE ALSO
Full documentation at: <https://trojan\-gfw.github.io/trojan/>
================================================
FILE: docs/usage.md
================================================
# Usage
```
usage: ./trojan [-htv] [-l LOG] [-k KEYLOG] [[-c] CONFIG]
options:
-c [ --config ] CONFIG specify config file
-h [ --help ] print help message
-k [ --keylog ] KEYLOG specify keylog file location (OpenSSL >= 1.1.1)
-l [ --log ] LOG specify log file location
-t [ --test ] test config file
-v [ --version ] print version and build info
```
The default value for CONFIG is where the default config is installed on Linux and other UNIX-like systems and `config.json` on Windows.
On Linux and other UNIX-like systems, the behavior of the handlers for the following signals are overridden:
- `SIGHUP`: Upon receiving `SIGHUP`, trojan will stop the service, reload the config, and restart the service. All existing connections are dropped. As a side effect, if trojan is left in the background of a shell, it will not exit when the shell exits.
- `SIGUSR1`: Upon receiving `SIGUSR1`, trojan will reload the certificate and private key of the `SSL` server. No existing connections are dropped, and the new certificate doesn't affect these connections.
Make sure your [config file](config) is valid. Configuring trojan is not trivial: there are several ideas you need to understand and several pitfalls you might fall into. Unless you are an expert, you shouldn't configure a trojan server all by yourself.
Here, we will present a list of things you should do before you start a trojan server:
- setup an `HTTP` server and make it useful in some sense (to deceive `GFW`).
- register a domain name for your server.
- Apply for or self-sign (**NOT RECOMMENDED**) an `SSL` certificate.
- Correctly write the [config file](config).
[Shadowsocks SIP003](https://shadowsocks.org/en/spec/Plugin.html) is supported by trojan, but it is added as an experimental feature and is not standard at all, so it will not be documented here.
[Homepage](.) | [Prev Page](build)
================================================
FILE: examples/client.json-example
================================================
{
"run_type": "client",
"local_addr": "127.0.0.1",
"local_port": 1080,
"remote_addr": "example.com",
"remote_port": 443,
"password": [
"password1"
],
"log_level": 1,
"ssl": {
"verify": true,
"verify_hostname": true,
"cert": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-SHA:AES256-SHA:DES-CBC3-SHA",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"sni": "",
"alpn": [
"h2",
"http/1.1"
],
"reuse_session": true,
"session_ticket": false,
"curves": ""
},
"tcp": {
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
}
}
================================================
FILE: examples/forward.json-example
================================================
{
"run_type": "forward",
"local_addr": "127.0.0.1",
"local_port": 5901,
"remote_addr": "example.com",
"remote_port": 443,
"target_addr": "127.0.0.1",
"target_port": 5901,
"password": [
"password1"
],
"udp_timeout": 60,
"log_level": 1,
"ssl": {
"verify": true,
"verify_hostname": true,
"cert": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-SHA:AES256-SHA:DES-CBC3-SHA",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"sni": "",
"alpn": [
"h2",
"http/1.1"
],
"reuse_session": true,
"session_ticket": false,
"curves": ""
},
"tcp": {
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
}
}
================================================
FILE: examples/nat.json-example
================================================
{
"run_type": "nat",
"local_addr": "127.0.0.1",
"local_port": 12345,
"remote_addr": "example.com",
"remote_port": 443,
"password": [
"password1"
],
"log_level": 1,
"ssl": {
"verify": true,
"verify_hostname": true,
"cert": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-SHA:AES256-SHA:DES-CBC3-SHA",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"sni": "",
"alpn": [
"h2",
"http/1.1"
],
"reuse_session": true,
"session_ticket": false,
"curves": ""
},
"tcp": {
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
}
}
================================================
FILE: examples/server.json-example
================================================
{
"run_type": "server",
"local_addr": "0.0.0.0",
"local_port": 443,
"remote_addr": "127.0.0.1",
"remote_port": 80,
"password": [
"password1",
"password2"
],
"log_level": 1,
"ssl": {
"cert": "/path/to/certificate.crt",
"key": "/path/to/private.key",
"key_password": "",
"cipher": "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384",
"cipher_tls13": "TLS_AES_128_GCM_SHA256:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_256_GCM_SHA384",
"prefer_server_cipher": true,
"alpn": [
"http/1.1"
],
"alpn_port_override": {
"h2": 81
},
"reuse_session": true,
"session_ticket": false,
"session_timeout": 600,
"plain_http_response": "",
"curves": "",
"dhparam": ""
},
"tcp": {
"prefer_ipv4": false,
"no_delay": true,
"keep_alive": true,
"reuse_port": false,
"fast_open": false,
"fast_open_qlen": 20
},
"mysql": {
"enabled": false,
"server_addr": "127.0.0.1",
"server_port": 3306,
"database": "trojan",
"username": "trojan",
"password": "",
"key": "",
"cert": "",
"ca": ""
}
}
================================================
FILE: examples/trojan.service-example
================================================
[Unit]
Description=trojan
Documentation=man:trojan(1) https://trojan-gfw.github.io/trojan/config https://trojan-gfw.github.io/trojan/
After=network.target network-online.target nss-lookup.target mysql.service mariadb.service mysqld.service
[Service]
Type=simple
StandardError=journal
User=nobody
AmbientCapabilities=CAP_NET_BIND_SERVICE
ExecStart=@CMAKE_INSTALL_FULL_BINDIR@/trojan @CMAKE_INSTALL_FULL_SYSCONFDIR@/trojan/@CONFIG_NAME@.json
ExecReload=/bin/kill -HUP $MAINPID
Restart=on-failure
RestartSec=1s
[Install]
WantedBy=multi-user.target
================================================
FILE: scripts/getcert.py
================================================
#!/usr/bin/env python3
# This file is part of the trojan project.
# Trojan is an unidentifiable mechanism that helps you bypass GFW.
# Copyright (C) 2017-2020 The Trojan Authors.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import socket
import ssl
import sys
def input_with_default(prompt, default):
print('{} [{}]: '.format(prompt, default), file=sys.stderr, end='')
line = input()
return line if line else default
def main(argc, argv):
if argc == 1:
hostname = input_with_default('Enter hostname', 'example.com')
port = int(input_with_default('Enter port number', '443'))
elif argc == 2:
hostname = argv[1]
port = 443
elif argc == 3:
hostname = argv[1]
port = int(argv[2])
else:
print('usage: {} [hostname] [port]'.format(argv[0]), file=sys.stderr)
exit(1)
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
with socket.create_connection((hostname, port)) as sock:
with ctx.wrap_socket(sock, server_hostname=hostname) as ssock:
print(ssl.DER_cert_to_PEM_cert(ssock.getpeercert(True)), end='')
if __name__ == '__main__':
main(len(sys.argv), sys.argv)
================================================
FILE: src/core/authenticator.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "authenticator.h"
#include <cstdlib>
#include <stdexcept>
using namespace std;
#ifdef ENABLE_MYSQL
Authenticator::Authenticator(const Config &config) {
mysql_init(&con);
Log::log_with_date_time("connecting to MySQL server " + config.mysql.server_addr + ':' + to_string(config.mysql.server_port), Log::INFO);
if (!config.mysql.ca.empty()) {
if (!config.mysql.key.empty() && !config.mysql.cert.empty()) {
mysql_ssl_set(&con, config.mysql.key.c_str(), config.mysql.cert.c_str(), config.mysql.ca.c_str(), nullptr, nullptr);
} else {
mysql_ssl_set(&con, nullptr, nullptr, config.mysql.ca.c_str(), nullptr, nullptr);
}
}
if (mysql_real_connect(&con, config.mysql.server_addr.c_str(),
config.mysql.username.c_str(),
config.mysql.password.c_str(),
config.mysql.database.c_str(),
config.mysql.server_port, nullptr, 0) == nullptr) {
throw runtime_error(mysql_error(&con));
}
bool reconnect = true;
mysql_options(&con, MYSQL_OPT_RECONNECT, &reconnect);
Log::log_with_date_time("connected to MySQL server", Log::INFO);
}
bool Authenticator::auth(const string &password) {
if (!is_valid_password(password)) {
return false;
}
if (mysql_query(&con, ("SELECT quota, download + upload FROM users WHERE password = '" + password + '\'').c_str())) {
Log::log_with_date_time(mysql_error(&con), Log::ERROR);
return false;
}
MYSQL_RES *res = mysql_store_result(&con);
if (res == nullptr) {
Log::log_with_date_time(mysql_error(&con), Log::ERROR);
return false;
}
MYSQL_ROW row = mysql_fetch_row(res);
if (row == nullptr) {
mysql_free_result(res);
return false;
}
int64_t quota = atoll(row[0]);
int64_t used = atoll(row[1]);
mysql_free_result(res);
if (quota < 0) {
return true;
}
if (used >= quota) {
Log::log_with_date_time(password + " ran out of quota", Log::WARN);
return false;
}
return true;
}
void Authenticator::record(const string &password, uint64_t download, uint64_t upload) {
if (!is_valid_password(password)) {
return;
}
if (mysql_query(&con, ("UPDATE users SET download = download + " + to_string(download) + ", upload = upload + " + to_string(upload) + " WHERE password = '" + password + '\'').c_str())) {
Log::log_with_date_time(mysql_error(&con), Log::ERROR);
}
}
bool Authenticator::is_valid_password(const string &password) {
if (password.size() != PASSWORD_LENGTH) {
return false;
}
for (size_t i = 0; i < PASSWORD_LENGTH; ++i) {
if (!((password[i] >= '0' && password[i] <= '9') || (password[i] >= 'a' && password[i] <= 'f'))) {
return false;
}
}
return true;
}
Authenticator::~Authenticator() {
mysql_close(&con);
}
#else // ENABLE_MYSQL
Authenticator::Authenticator(const Config&) {}
bool Authenticator::auth(const string&) { return true; }
void Authenticator::record(const string&, uint64_t, uint64_t) {}
bool Authenticator::is_valid_password(const string&) { return true; }
Authenticator::~Authenticator() {}
#endif // ENABLE_MYSQL
================================================
FILE: src/core/authenticator.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _AUTHENTICATOR_H_
#define _AUTHENTICATOR_H_
#ifdef ENABLE_MYSQL
#include <mysql.h>
#endif // ENABLE_MYSQL
#include "config.h"
class Authenticator {
private:
#ifdef ENABLE_MYSQL
MYSQL con{};
#endif // ENABLE_MYSQL
enum {
PASSWORD_LENGTH=56
};
static bool is_valid_password(const std::string &password);
public:
explicit Authenticator(const Config &config);
bool auth(const std::string &password);
void record(const std::string &password, uint64_t download, uint64_t upload);
~Authenticator();
};
#endif // _AUTHENTICATOR_H_
================================================
FILE: src/core/config.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <cstdlib>
#include <sstream>
#include <stdexcept>
#include <boost/property_tree/json_parser.hpp>
#include <openssl/evp.h>
using namespace std;
using namespace boost::property_tree;
void Config::load(const string &filename) {
ptree tree;
read_json(filename, tree);
populate(tree);
}
void Config::populate(const string &JSON) {
istringstream s(JSON);
ptree tree;
read_json(s, tree);
populate(tree);
}
void Config::populate(const ptree &tree) {
string rt = tree.get("run_type", string("client"));
if (rt == "server") {
run_type = SERVER;
} else if (rt == "forward") {
run_type = FORWARD;
} else if (rt == "nat") {
run_type = NAT;
} else if (rt == "client") {
run_type = CLIENT;
} else {
throw runtime_error("wrong run_type in config file");
}
local_addr = tree.get("local_addr", string());
local_port = tree.get("local_port", uint16_t());
remote_addr = tree.get("remote_addr", string());
remote_port = tree.get("remote_port", uint16_t());
target_addr = tree.get("target_addr", string());
target_port = tree.get("target_port", uint16_t());
map<string, string>().swap(password);
if (tree.get_child_optional("password")) {
for (auto& item: tree.get_child("password")) {
string p = item.second.get_value<string>();
password[SHA224(p)] = p;
}
}
udp_timeout = tree.get("udp_timeout", 60);
log_level = static_cast<Log::Level>(tree.get("log_level", 1));
ssl.verify = tree.get("ssl.verify", true);
ssl.verify_hostname = tree.get("ssl.verify_hostname", true);
ssl.cert = tree.get("ssl.cert", string());
ssl.key = tree.get("ssl.key", string());
ssl.key_password = tree.get("ssl.key_password", string());
ssl.cipher = tree.get("ssl.cipher", string());
ssl.cipher_tls13 = tree.get("ssl.cipher_tls13", string());
ssl.prefer_server_cipher = tree.get("ssl.prefer_server_cipher", true);
ssl.sni = tree.get("ssl.sni", string());
ssl.alpn = "";
if (tree.get_child_optional("ssl.alpn")) {
for (auto& item: tree.get_child("ssl.alpn")) {
string proto = item.second.get_value<string>();
ssl.alpn += (char)((unsigned char)(proto.length()));
ssl.alpn += proto;
}
}
map<string, uint16_t>().swap(ssl.alpn_port_override);
if (tree.get_child_optional("ssl.alpn_port_override")) {
for (auto& item: tree.get_child("ssl.alpn_port_override")) {
ssl.alpn_port_override[item.first] = item.second.get_value<uint16_t>();
}
}
ssl.reuse_session = tree.get("ssl.reuse_session", true);
ssl.session_ticket = tree.get("ssl.session_ticket", false);
ssl.session_timeout = tree.get("ssl.session_timeout", long(600));
ssl.plain_http_response = tree.get("ssl.plain_http_response", string());
ssl.curves = tree.get("ssl.curves", string());
ssl.dhparam = tree.get("ssl.dhparam", string());
tcp.prefer_ipv4 = tree.get("tcp.prefer_ipv4", false);
tcp.no_delay = tree.get("tcp.no_delay", true);
tcp.keep_alive = tree.get("tcp.keep_alive", true);
tcp.reuse_port = tree.get("tcp.reuse_port", false);
tcp.fast_open = tree.get("tcp.fast_open", false);
tcp.fast_open_qlen = tree.get("tcp.fast_open_qlen", 20);
mysql.enabled = tree.get("mysql.enabled", false);
mysql.server_addr = tree.get("mysql.server_addr", string("127.0.0.1"));
mysql.server_port = tree.get("mysql.server_port", uint16_t(3306));
mysql.database = tree.get("mysql.database", string("trojan"));
mysql.username = tree.get("mysql.username", string("trojan"));
mysql.password = tree.get("mysql.password", string());
mysql.key = tree.get("mysql.key", string());
mysql.cert = tree.get("mysql.cert", string());
mysql.ca = tree.get("mysql.ca", string());
}
bool Config::sip003() {
char *JSON = getenv("SS_PLUGIN_OPTIONS");
if (JSON == nullptr) {
return false;
}
populate(JSON);
switch (run_type) {
case SERVER:
local_addr = getenv("SS_REMOTE_HOST");
local_port = atoi(getenv("SS_REMOTE_PORT"));
break;
case CLIENT:
case NAT:
throw runtime_error("SIP003 with wrong run_type");
case FORWARD:
remote_addr = getenv("SS_REMOTE_HOST");
remote_port = atoi(getenv("SS_REMOTE_PORT"));
local_addr = getenv("SS_LOCAL_HOST");
local_port = atoi(getenv("SS_LOCAL_PORT"));
break;
}
return true;
}
string Config::SHA224(const string &message) {
uint8_t digest[EVP_MAX_MD_SIZE];
char mdString[(EVP_MAX_MD_SIZE << 1) + 1];
unsigned int digest_len;
EVP_MD_CTX *ctx;
if ((ctx = EVP_MD_CTX_new()) == nullptr) {
throw runtime_error("could not create hash context");
}
if (!EVP_DigestInit_ex(ctx, EVP_sha224(), nullptr)) {
EVP_MD_CTX_free(ctx);
throw runtime_error("could not initialize hash context");
}
if (!EVP_DigestUpdate(ctx, message.c_str(), message.length())) {
EVP_MD_CTX_free(ctx);
throw runtime_error("could not update hash");
}
if (!EVP_DigestFinal_ex(ctx, digest, &digest_len)) {
EVP_MD_CTX_free(ctx);
throw runtime_error("could not output hash");
}
for (unsigned int i = 0; i < digest_len; ++i) {
sprintf(mdString + (i << 1), "%02x", (unsigned int)digest[i]);
}
mdString[digest_len << 1] = '\0';
EVP_MD_CTX_free(ctx);
return string(mdString);
}
================================================
FILE: src/core/config.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CONFIG_H_
#define _CONFIG_H_
#include <cstdint>
#include <map>
#include <boost/property_tree/ptree.hpp>
#include "log.h"
class Config {
public:
enum RunType {
SERVER,
CLIENT,
FORWARD,
NAT
} run_type;
std::string local_addr;
uint16_t local_port;
std::string remote_addr;
uint16_t remote_port;
std::string target_addr;
uint16_t target_port;
std::map<std::string, std::string> password;
int udp_timeout;
Log::Level log_level;
class SSLConfig {
public:
bool verify;
bool verify_hostname;
std::string cert;
std::string key;
std::string key_password;
std::string cipher;
std::string cipher_tls13;
bool prefer_server_cipher;
std::string sni;
std::string alpn;
std::map<std::string, uint16_t> alpn_port_override;
bool reuse_session;
bool session_ticket;
long session_timeout;
std::string plain_http_response;
std::string curves;
std::string dhparam;
} ssl;
class TCPConfig {
public:
bool prefer_ipv4;
bool no_delay;
bool keep_alive;
bool reuse_port;
bool fast_open;
int fast_open_qlen;
} tcp;
class MySQLConfig {
public:
bool enabled;
std::string server_addr;
uint16_t server_port;
std::string database;
std::string username;
std::string password;
std::string key;
std::string cert;
std::string ca;
} mysql;
void load(const std::string &filename);
void populate(const std::string &JSON);
bool sip003();
static std::string SHA224(const std::string &message);
private:
void populate(const boost::property_tree::ptree &tree);
};
#endif // _CONFIG_H_
================================================
FILE: src/core/log.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "log.h"
#include <cstring>
#include <cerrno>
#include <stdexcept>
#include <sstream>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/date_time/posix_time/posix_time_io.hpp>
#ifdef ENABLE_ANDROID_LOG
#include <android/log.h>
#endif // ENABLE_ANDROID_LOG
using namespace std;
using namespace boost::posix_time;
using namespace boost::asio::ip;
Log::Level Log::level(INFO);
FILE *Log::keylog(nullptr);
FILE *Log::output_stream(stderr);
Log::LogCallback Log::log_callback{};
void Log::log(const string &message, Level level) {
if (level >= Log::level) {
#ifdef ENABLE_ANDROID_LOG
__android_log_print(ANDROID_LOG_ERROR, "trojan", "%s\n",
message.c_str());
#else
fprintf(output_stream, "%s\n", message.c_str());
fflush(output_stream);
#endif // ENABLE_ANDROID_LOG
if (log_callback) {
log_callback(message, level);
}
}
}
void Log::log_with_date_time(const string &message, Level level) {
static const char *level_strings[]= {"ALL", "INFO", "WARN", "ERROR", "FATAL", "OFF"};
auto *facet = new time_facet("[%Y-%m-%d %H:%M:%S] ");
ostringstream stream;
stream.imbue(locale(stream.getloc(), facet));
stream << second_clock::local_time();
string level_string = '[' + string(level_strings[level]) + "] ";
log(stream.str() + level_string + message, level);
}
void Log::log_with_endpoint(const tcp::endpoint &endpoint, const string &message, Level level) {
log_with_date_time(endpoint.address().to_string() + ':' + to_string(endpoint.port()) + ' ' + message, level);
}
void Log::redirect(const string &filename) {
FILE *fp = fopen(filename.c_str(), "a");
if (fp == nullptr) {
throw runtime_error(filename + ": " + strerror(errno));
}
if (output_stream != stderr) {
fclose(output_stream);
}
output_stream = fp;
}
void Log::redirect_keylog(const string &filename) {
FILE *fp = fopen(filename.c_str(), "a");
if (fp == nullptr) {
throw runtime_error(filename + ": " + strerror(errno));
}
if (keylog != nullptr) {
fclose(keylog);
}
keylog = fp;
}
void Log::set_callback(LogCallback cb) {
log_callback = move(cb);
}
void Log::reset() {
if (output_stream != stderr) {
fclose(output_stream);
output_stream = stderr;
}
if (keylog != nullptr) {
fclose(keylog);
keylog = nullptr;
}
}
================================================
FILE: src/core/log.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LOG_H_
#define _LOG_H_
#include <cstdio>
#include <string>
#include <boost/asio/ip/tcp.hpp>
#ifdef ERROR // windows.h
#undef ERROR
#endif // ERROR
class Log {
public:
enum Level {
ALL = 0,
INFO = 1,
WARN = 2,
ERROR = 3,
FATAL = 4,
OFF = 5
};
typedef std::function<void(const std::string &, Level)> LogCallback;
static Level level;
static FILE *keylog;
static void log(const std::string &message, Level level = ALL);
static void log_with_date_time(const std::string &message, Level level = ALL);
static void log_with_endpoint(const boost::asio::ip::tcp::endpoint &endpoint, const std::string &message, Level level = ALL);
static void redirect(const std::string &filename);
static void redirect_keylog(const std::string &filename);
static void set_callback(LogCallback cb);
static void reset();
private:
static FILE *output_stream;
static LogCallback log_callback;
};
#endif // _LOG_H_
================================================
FILE: src/core/service.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "service.h"
#include <cstring>
#include <cerrno>
#include <stdexcept>
#include <fstream>
#ifdef _WIN32
#include <wincrypt.h>
#include <tchar.h>
#endif // _WIN32
#ifdef __APPLE__
#include <Security/Security.h>
#endif // __APPLE__
#include <openssl/opensslv.h>
#include "session/serversession.h"
#include "session/clientsession.h"
#include "session/forwardsession.h"
#include "session/natsession.h"
#include "ssl/ssldefaults.h"
#include "ssl/sslsession.h"
using namespace std;
using namespace boost::asio::ip;
using namespace boost::asio::ssl;
#ifdef ENABLE_REUSE_PORT
typedef boost::asio::detail::socket_option::boolean<SOL_SOCKET, SO_REUSEPORT> reuse_port;
#endif // ENABLE_REUSE_PORT
Service::Service(Config &config, bool test) :
config(config),
socket_acceptor(io_context),
ssl_context(context::sslv23),
auth(nullptr),
udp_socket(io_context) {
#ifndef ENABLE_NAT
if (config.run_type == Config::NAT) {
throw runtime_error("NAT is not supported");
}
#endif // ENABLE_NAT
if (!test) {
tcp::resolver resolver(io_context);
tcp::endpoint listen_endpoint = *resolver.resolve(config.local_addr, to_string(config.local_port)).begin();
socket_acceptor.open(listen_endpoint.protocol());
socket_acceptor.set_option(tcp::acceptor::reuse_address(true));
if (config.tcp.reuse_port) {
#ifdef ENABLE_REUSE_PORT
socket_acceptor.set_option(reuse_port(true));
#else // ENABLE_REUSE_PORT
Log::log_with_date_time("SO_REUSEPORT is not supported", Log::WARN);
#endif // ENABLE_REUSE_PORT
}
socket_acceptor.bind(listen_endpoint);
socket_acceptor.listen();
if (config.run_type == Config::FORWARD) {
auto udp_bind_endpoint = udp::endpoint(listen_endpoint.address(), listen_endpoint.port());
udp_socket.open(udp_bind_endpoint.protocol());
udp_socket.bind(udp_bind_endpoint);
}
}
Log::level = config.log_level;
auto native_context = ssl_context.native_handle();
ssl_context.set_options(context::default_workarounds | context::no_sslv2 | context::no_sslv3 | context::single_dh_use);
if (!config.ssl.curves.empty()) {
SSL_CTX_set1_curves_list(native_context, config.ssl.curves.c_str());
}
if (config.run_type == Config::SERVER) {
ssl_context.use_certificate_chain_file(config.ssl.cert);
ssl_context.set_password_callback([this](size_t, context_base::password_purpose) {
return this->config.ssl.key_password;
});
ssl_context.use_private_key_file(config.ssl.key, context::pem);
if (config.ssl.prefer_server_cipher) {
SSL_CTX_set_options(native_context, SSL_OP_CIPHER_SERVER_PREFERENCE);
}
if (!config.ssl.alpn.empty()) {
SSL_CTX_set_alpn_select_cb(native_context, [](SSL*, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *config) -> int {
if (SSL_select_next_proto((unsigned char**)out, outlen, (unsigned char*)(((Config*)config)->ssl.alpn.c_str()), ((Config*)config)->ssl.alpn.length(), in, inlen) != OPENSSL_NPN_NEGOTIATED) {
return SSL_TLSEXT_ERR_NOACK;
}
return SSL_TLSEXT_ERR_OK;
}, &config);
}
if (config.ssl.reuse_session) {
SSL_CTX_set_timeout(native_context, config.ssl.session_timeout);
if (!config.ssl.session_ticket) {
SSL_CTX_set_options(native_context, SSL_OP_NO_TICKET);
}
} else {
SSL_CTX_set_session_cache_mode(native_context, SSL_SESS_CACHE_OFF);
SSL_CTX_set_options(native_context, SSL_OP_NO_TICKET);
}
if (!config.ssl.plain_http_response.empty()) {
ifstream ifs(config.ssl.plain_http_response, ios::binary);
if (!ifs.is_open()) {
throw runtime_error(config.ssl.plain_http_response + ": " + strerror(errno));
}
plain_http_response = string(istreambuf_iterator<char>(ifs), istreambuf_iterator<char>());
}
if (config.ssl.dhparam.empty()) {
ssl_context.use_tmp_dh(boost::asio::const_buffer(SSLDefaults::g_dh2048_sz, SSLDefaults::g_dh2048_sz_size));
} else {
ssl_context.use_tmp_dh_file(config.ssl.dhparam);
}
if (config.mysql.enabled) {
#ifdef ENABLE_MYSQL
auth = new Authenticator(config);
#else // ENABLE_MYSQL
Log::log_with_date_time("MySQL is not supported", Log::WARN);
#endif // ENABLE_MYSQL
}
} else {
if (config.ssl.sni.empty()) {
config.ssl.sni = config.remote_addr;
}
if (config.ssl.verify) {
ssl_context.set_verify_mode(verify_peer);
if (config.ssl.cert.empty()) {
ssl_context.set_default_verify_paths();
#ifdef _WIN32
HCERTSTORE h_store = CertOpenSystemStore(0, _T("ROOT"));
if (h_store) {
X509_STORE *store = SSL_CTX_get_cert_store(native_context);
PCCERT_CONTEXT p_context = NULL;
while ((p_context = CertEnumCertificatesInStore(h_store, p_context))) {
const unsigned char *encoded_cert = p_context->pbCertEncoded;
X509 *x509 = d2i_X509(NULL, &encoded_cert, p_context->cbCertEncoded);
if (x509) {
X509_STORE_add_cert(store, x509);
X509_free(x509);
}
}
CertCloseStore(h_store, 0);
}
#endif // _WIN32
#ifdef __APPLE__
SecKeychainSearchRef pSecKeychainSearch = NULL;
SecKeychainRef pSecKeychain;
OSStatus status = noErr;
X509 *cert = NULL;
// Leopard and above store location
status = SecKeychainOpen ("/System/Library/Keychains/SystemRootCertificates.keychain", &pSecKeychain);
if (status == noErr) {
X509_STORE *store = SSL_CTX_get_cert_store(native_context);
status = SecKeychainSearchCreateFromAttributes (pSecKeychain, kSecCertificateItemClass, NULL, &pSecKeychainSearch);
for (;;) {
SecKeychainItemRef pSecKeychainItem = nil;
status = SecKeychainSearchCopyNext (pSecKeychainSearch, &pSecKeychainItem);
if (status == errSecItemNotFound) {
break;
}
if (status == noErr) {
void *_pCertData;
UInt32 _pCertLength;
status = SecKeychainItemCopyAttributesAndData (pSecKeychainItem, NULL, NULL, NULL, &_pCertLength, &_pCertData);
if (status == noErr && _pCertData != NULL) {
unsigned char *ptr;
ptr = (unsigned char *)_pCertData; /*required because d2i_X509 is modifying pointer */
cert = d2i_X509 (NULL, (const unsigned char **) &ptr, _pCertLength);
if (cert == NULL) {
continue;
}
if (!X509_STORE_add_cert (store, cert)) {
X509_free (cert);
continue;
}
X509_free (cert);
status = SecKeychainItemFreeAttributesAndData (NULL, _pCertData);
}
}
if (pSecKeychainItem != NULL) {
CFRelease (pSecKeychainItem);
}
}
CFRelease (pSecKeychainSearch);
CFRelease (pSecKeychain);
}
#endif // __APPLE__
} else {
ssl_context.load_verify_file(config.ssl.cert);
}
if (config.ssl.verify_hostname) {
#if BOOST_VERSION >= 107300
ssl_context.set_verify_callback(host_name_verification(config.ssl.sni));
#else
ssl_context.set_verify_callback(rfc2818_verification(config.ssl.sni));
#endif
}
X509_VERIFY_PARAM *param = X509_VERIFY_PARAM_new();
X509_VERIFY_PARAM_set_flags(param, X509_V_FLAG_PARTIAL_CHAIN);
SSL_CTX_set1_param(native_context, param);
X509_VERIFY_PARAM_free(param);
} else {
ssl_context.set_verify_mode(verify_none);
}
if (!config.ssl.alpn.empty()) {
SSL_CTX_set_alpn_protos(native_context, (unsigned char*)(config.ssl.alpn.c_str()), config.ssl.alpn.length());
}
if (config.ssl.reuse_session) {
SSL_CTX_set_session_cache_mode(native_context, SSL_SESS_CACHE_CLIENT);
SSLSession::set_callback(native_context);
if (!config.ssl.session_ticket) {
SSL_CTX_set_options(native_context, SSL_OP_NO_TICKET);
}
} else {
SSL_CTX_set_options(native_context, SSL_OP_NO_TICKET);
}
}
if (!config.ssl.cipher.empty()) {
SSL_CTX_set_cipher_list(native_context, config.ssl.cipher.c_str());
}
if (!config.ssl.cipher_tls13.empty()) {
#ifdef ENABLE_TLS13_CIPHERSUITES
SSL_CTX_set_ciphersuites(native_context, config.ssl.cipher_tls13.c_str());
#else // ENABLE_TLS13_CIPHERSUITES
Log::log_with_date_time("TLS1.3 ciphersuites are not supported", Log::WARN);
#endif // ENABLE_TLS13_CIPHERSUITES
}
if (!test) {
if (config.tcp.no_delay) {
socket_acceptor.set_option(tcp::no_delay(true));
}
if (config.tcp.keep_alive) {
socket_acceptor.set_option(boost::asio::socket_base::keep_alive(true));
}
if (config.tcp.fast_open) {
#ifdef TCP_FASTOPEN
using fastopen = boost::asio::detail::socket_option::integer<IPPROTO_TCP, TCP_FASTOPEN>;
boost::system::error_code ec;
socket_acceptor.set_option(fastopen(config.tcp.fast_open_qlen), ec);
#else // TCP_FASTOPEN
Log::log_with_date_time("TCP_FASTOPEN is not supported", Log::WARN);
#endif // TCP_FASTOPEN
#ifndef TCP_FASTOPEN_CONNECT
Log::log_with_date_time("TCP_FASTOPEN_CONNECT is not supported", Log::WARN);
#endif // TCP_FASTOPEN_CONNECT
}
}
if (Log::keylog) {
#ifdef ENABLE_SSL_KEYLOG
SSL_CTX_set_keylog_callback(native_context, [](const SSL*, const char *line) {
fprintf(Log::keylog, "%s\n", line);
fflush(Log::keylog);
});
#else // ENABLE_SSL_KEYLOG
Log::log_with_date_time("SSL KeyLog is not supported", Log::WARN);
#endif // ENABLE_SSL_KEYLOG
}
}
void Service::run() {
async_accept();
if (config.run_type == Config::FORWARD) {
udp_async_read();
}
tcp::endpoint local_endpoint = socket_acceptor.local_endpoint();
string rt;
if (config.run_type == Config::SERVER) {
rt = "server";
} else if (config.run_type == Config::FORWARD) {
rt = "forward";
} else if (config.run_type == Config::NAT) {
rt = "nat";
} else {
rt = "client";
}
Log::log_with_date_time(string("trojan service (") + rt + ") started at " + local_endpoint.address().to_string() + ':' + to_string(local_endpoint.port()), Log::WARN);
io_context.run();
Log::log_with_date_time("trojan service stopped", Log::WARN);
}
void Service::stop() {
boost::system::error_code ec;
socket_acceptor.cancel(ec);
if (udp_socket.is_open()) {
udp_socket.cancel(ec);
udp_socket.close(ec);
}
io_context.stop();
}
void Service::async_accept() {
shared_ptr<Session>session(nullptr);
if (config.run_type == Config::SERVER) {
session = make_shared<ServerSession>(config, io_context, ssl_context, auth, plain_http_response);
} else if (config.run_type == Config::FORWARD) {
session = make_shared<ForwardSession>(config, io_context, ssl_context);
} else if (config.run_type == Config::NAT) {
session = make_shared<NATSession>(config, io_context, ssl_context);
} else {
session = make_shared<ClientSession>(config, io_context, ssl_context);
}
socket_acceptor.async_accept(session->accept_socket(), [this, session](const boost::system::error_code error) {
if (error == boost::asio::error::operation_aborted) {
// got cancel signal, stop calling myself
return;
}
if (!error) {
boost::system::error_code ec;
auto endpoint = session->accept_socket().remote_endpoint(ec);
if (!ec) {
Log::log_with_endpoint(endpoint, "incoming connection");
session->start();
}
}
async_accept();
});
}
void Service::udp_async_read() {
udp_socket.async_receive_from(boost::asio::buffer(udp_read_buf, MAX_LENGTH), udp_recv_endpoint, [this](const boost::system::error_code error, size_t length) {
if (error == boost::asio::error::operation_aborted) {
// got cancel signal, stop calling myself
return;
}
if (error) {
stop();
throw runtime_error(error.message());
}
string data((const char *)udp_read_buf, length);
for (auto it = udp_sessions.begin(); it != udp_sessions.end();) {
auto next = ++it;
--it;
if (it->expired()) {
udp_sessions.erase(it);
} else if (it->lock()->process(udp_recv_endpoint, data)) {
udp_async_read();
return;
}
it = next;
}
Log::log_with_endpoint(tcp::endpoint(udp_recv_endpoint.address(), udp_recv_endpoint.port()), "new UDP session");
auto session = make_shared<UDPForwardSession>(config, io_context, ssl_context, udp_recv_endpoint, [this](const udp::endpoint &endpoint, const string &data) {
boost::system::error_code ec;
udp_socket.send_to(boost::asio::buffer(data), endpoint, 0, ec);
if (ec == boost::asio::error::no_permission) {
Log::log_with_endpoint(tcp::endpoint(endpoint.address(), endpoint.port()), "dropped a UDP packet due to firewall policy or rate limit");
} else if (ec) {
throw runtime_error(ec.message());
}
});
udp_sessions.emplace_back(session);
session->start();
session->process(udp_recv_endpoint, data);
udp_async_read();
});
}
boost::asio::io_context &Service::service() {
return io_context;
}
void Service::reload_cert() {
if (config.run_type == Config::SERVER) {
Log::log_with_date_time("reloading certificate and private key. . . ", Log::WARN);
ssl_context.use_certificate_chain_file(config.ssl.cert);
ssl_context.use_private_key_file(config.ssl.key, context::pem);
boost::system::error_code ec;
socket_acceptor.cancel(ec);
async_accept();
Log::log_with_date_time("certificate and private key reloaded", Log::WARN);
} else {
Log::log_with_date_time("cannot reload certificate and private key: wrong run_type", Log::ERROR);
}
}
Service::~Service() {
if (auth) {
delete auth;
auth = nullptr;
}
}
================================================
FILE: src/core/service.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SERVICE_H_
#define _SERVICE_H_
#include <list>
#include <boost/version.hpp>
#include <boost/asio/io_context.hpp>
#include <boost/asio/ssl.hpp>
#include <boost/asio/ip/udp.hpp>
#include "authenticator.h"
#include "session/udpforwardsession.h"
class Service {
private:
enum {
MAX_LENGTH = 8192
};
const Config &config;
boost::asio::io_context io_context;
boost::asio::ip::tcp::acceptor socket_acceptor;
boost::asio::ssl::context ssl_context;
Authenticator *auth;
std::string plain_http_response;
boost::asio::ip::udp::socket udp_socket;
std::list<std::weak_ptr<UDPForwardSession> > udp_sessions;
uint8_t udp_read_buf[MAX_LENGTH]{};
boost::asio::ip::udp::endpoint udp_recv_endpoint;
void async_accept();
void udp_async_read();
public:
explicit Service(Config &config, bool test = false);
void run();
void stop();
boost::asio::io_context &service();
void reload_cert();
~Service();
};
#endif // _SERVICE_H_
================================================
FILE: src/core/version.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "version.h"
using namespace std;
const string Version::version("1.16.0");
string Version::get_version() {
return version;
}
================================================
FILE: src/core/version.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _VERSION_H_
#define _VERSION_H_
#include <string>
class Version {
private:
const static std::string version;
public:
static std::string get_version();
};
#endif // _VERSION_H_
================================================
FILE: src/main.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <cstdlib>
#include <iostream>
#include <boost/asio/signal_set.hpp>
#include <boost/program_options.hpp>
#include <boost/version.hpp>
#include <openssl/opensslv.h>
#ifdef ENABLE_MYSQL
#include <mysql.h>
#endif // ENABLE_MYSQL
#include "core/service.h"
#include "core/version.h"
using namespace std;
using namespace boost::asio;
namespace po = boost::program_options;
#ifndef DEFAULT_CONFIG
#define DEFAULT_CONFIG "config.json"
#endif // DEFAULT_CONFIG
void signal_async_wait(signal_set &sig, Service &service, bool &restart) {
sig.async_wait([&](const boost::system::error_code error, int signum) {
if (error) {
return;
}
Log::log_with_date_time("got signal: " + to_string(signum), Log::WARN);
switch (signum) {
case SIGINT:
case SIGTERM:
service.stop();
break;
#ifndef _WIN32
case SIGHUP:
restart = true;
service.stop();
break;
case SIGUSR1:
service.reload_cert();
signal_async_wait(sig, service, restart);
break;
#endif // _WIN32
}
});
}
int main(int argc, const char *argv[]) {
try {
Log::log("Welcome to trojan " + Version::get_version(), Log::FATAL);
string config_file;
string log_file;
string keylog_file;
bool test;
po::options_description desc("options");
desc.add_options()
("config,c", po::value<string>(&config_file)->default_value(DEFAULT_CONFIG)->value_name("CONFIG"), "specify config file")
("help,h", "print help message")
("keylog,k", po::value<string>(&keylog_file)->value_name("KEYLOG"), "specify keylog file location (OpenSSL >= 1.1.1)")
("log,l", po::value<string>(&log_file)->value_name("LOG"), "specify log file location")
("test,t", po::bool_switch(&test), "test config file")
("version,v", "print version and build info")
;
po::positional_options_description pd;
pd.add("config", 1);
po::variables_map vm;
po::store(po::command_line_parser(argc, argv).options(desc).positional(pd).run(), vm);
po::notify(vm);
if (vm.count("help")) {
Log::log(string("usage: ") + argv[0] + " [-htv] [-l LOG] [-k KEYLOG] [[-c] CONFIG]", Log::FATAL);
cerr << desc;
exit(EXIT_SUCCESS);
}
if (vm.count("version")) {
Log::log(string("Boost ") + BOOST_LIB_VERSION + ", " + OpenSSL_version(OPENSSL_VERSION), Log::FATAL);
#ifdef ENABLE_MYSQL
Log::log(string(" [Enabled] MySQL Support (") + mysql_get_client_info() + ')', Log::FATAL);
#else // ENABLE_MYSQL
Log::log("[Disabled] MySQL Support", Log::FATAL);
#endif // ENABLE_MYSQL
#ifdef TCP_FASTOPEN
Log::log(" [Enabled] TCP_FASTOPEN Support", Log::FATAL);
#else // TCP_FASTOPEN
Log::log("[Disabled] TCP_FASTOPEN Support", Log::FATAL);
#endif // TCP_FASTOPEN
#ifdef TCP_FASTOPEN_CONNECT
Log::log(" [Enabled] TCP_FASTOPEN_CONNECT Support", Log::FATAL);
#else // TCP_FASTOPEN_CONNECT
Log::log("[Disabled] TCP_FASTOPEN_CONNECT Support", Log::FATAL);
#endif // TCP_FASTOPEN_CONNECT
#if ENABLE_SSL_KEYLOG
Log::log(" [Enabled] SSL KeyLog Support", Log::FATAL);
#else // ENABLE_SSL_KEYLOG
Log::log("[Disabled] SSL KeyLog Support", Log::FATAL);
#endif // ENABLE_SSL_KEYLOG
#ifdef ENABLE_NAT
Log::log(" [Enabled] NAT Support", Log::FATAL);
#else // ENABLE_NAT
Log::log("[Disabled] NAT Support", Log::FATAL);
#endif // ENABLE_NAT
#ifdef ENABLE_TLS13_CIPHERSUITES
Log::log(" [Enabled] TLS1.3 Ciphersuites Support", Log::FATAL);
#else // ENABLE_TLS13_CIPHERSUITES
Log::log("[Disabled] TLS1.3 Ciphersuites Support", Log::FATAL);
#endif // ENABLE_TLS13_CIPHERSUITES
#ifdef ENABLE_REUSE_PORT
Log::log(" [Enabled] TCP Port Reuse Support", Log::FATAL);
#else // ENABLE_REUSE_PORT
Log::log("[Disabled] TCP Port Reuse Support", Log::FATAL);
#endif // ENABLE_REUSE_PORT
Log::log("OpenSSL Information", Log::FATAL);
if (OpenSSL_version_num() != OPENSSL_VERSION_NUMBER) {
Log::log(string("\tCompile-time Version: ") + OPENSSL_VERSION_TEXT, Log::FATAL);
}
Log::log(string("\tBuild Flags: ") + OpenSSL_version(OPENSSL_CFLAGS), Log::FATAL);
exit(EXIT_SUCCESS);
}
if (vm.count("log")) {
Log::redirect(log_file);
}
if (vm.count("keylog")) {
Log::redirect_keylog(keylog_file);
}
bool restart;
Config config;
do {
restart = false;
if (config.sip003()) {
Log::log_with_date_time("SIP003 is loaded", Log::WARN);
} else {
config.load(config_file);
}
Service service(config, test);
if (test) {
Log::log("The config file looks good.", Log::OFF);
exit(EXIT_SUCCESS);
}
signal_set sig(service.service());
sig.add(SIGINT);
sig.add(SIGTERM);
#ifndef _WIN32
sig.add(SIGHUP);
sig.add(SIGUSR1);
#endif // _WIN32
signal_async_wait(sig, service, restart);
service.run();
if (restart) {
Log::log_with_date_time("trojan service restarting. . . ", Log::WARN);
}
} while (restart);
Log::reset();
exit(EXIT_SUCCESS);
} catch (const exception &e) {
Log::log_with_date_time(string("fatal: ") + e.what(), Log::FATAL);
Log::log_with_date_time("exiting. . . ", Log::FATAL);
exit(EXIT_FAILURE);
}
}
================================================
FILE: src/proto/socks5address.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "socks5address.h"
#include <cstdio>
using namespace std;
using namespace boost::asio::ip;
bool SOCKS5Address::parse(const string &data, size_t &address_len) {
if (data.length() == 0 || (data[0] != IPv4 && data[0] != DOMAINNAME && data[0] != IPv6)) {
return false;
}
address_type = static_cast<AddressType>(data[0]);
switch (address_type) {
case IPv4: {
if (data.length() > 4 + 2) {
address = to_string(uint8_t(data[1])) + '.' +
to_string(uint8_t(data[2])) + '.' +
to_string(uint8_t(data[3])) + '.' +
to_string(uint8_t(data[4]));
port = (uint8_t(data[5]) << 8) | uint8_t(data[6]);
address_len = 1 + 4 + 2;
return true;
}
break;
}
case DOMAINNAME: {
uint8_t domain_len = data[1];
if (domain_len == 0) {
// invalid domain len
break;
}
if (data.length() > (unsigned int)(1 + domain_len + 2)) {
address = data.substr(2, domain_len);
port = (uint8_t(data[domain_len + 2]) << 8) | uint8_t(data[domain_len + 3]);
address_len = 1 + 1 + domain_len + 2;
return true;
}
break;
}
case IPv6: {
if (data.length() > 16 + 2) {
char t[40];
sprintf(t, "%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x",
uint8_t(data[1]), uint8_t(data[2]), uint8_t(data[3]), uint8_t(data[4]),
uint8_t(data[5]), uint8_t(data[6]), uint8_t(data[7]), uint8_t(data[8]),
uint8_t(data[9]), uint8_t(data[10]), uint8_t(data[11]), uint8_t(data[12]),
uint8_t(data[13]), uint8_t(data[14]), uint8_t(data[15]), uint8_t(data[16]));
address = t;
port = (uint8_t(data[17]) << 8) | uint8_t(data[18]);
address_len = 1 + 16 + 2;
return true;
}
break;
}
}
return false;
}
string SOCKS5Address::generate(const udp::endpoint &endpoint) {
if (endpoint.address().is_unspecified()) {
return string("\x01\x00\x00\x00\x00\x00\x00", 7);
}
string ret;
if (endpoint.address().is_v4()) {
ret += '\x01';
auto ip = endpoint.address().to_v4().to_bytes();
for (int i = 0; i < 4; ++i) {
ret += char(ip[i]);
}
}
if (endpoint.address().is_v6()) {
ret += '\x04';
auto ip = endpoint.address().to_v6().to_bytes();
for (int i = 0; i < 16; ++i) {
ret += char(ip[i]);
}
}
ret += char(uint8_t(endpoint.port() >> 8));
ret += char(uint8_t(endpoint.port() & 0xFF));
return ret;
}
================================================
FILE: src/proto/socks5address.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SOCKS5ADDRESS_H_
#define _SOCKS5ADDRESS_H_
#include <cstdint>
#include <string>
#include <boost/asio/ip/udp.hpp>
class SOCKS5Address {
public:
enum AddressType {
IPv4 = 1,
DOMAINNAME = 3,
IPv6 = 4
} address_type;
std::string address;
uint16_t port;
bool parse(const std::string &data, size_t &address_len);
static std::string generate(const boost::asio::ip::udp::endpoint &endpoint);
};
#endif // _SOCKS5ADDRESS_H_
================================================
FILE: src/proto/trojanrequest.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "trojanrequest.h"
using namespace std;
int TrojanRequest::parse(const string &data) {
size_t first = data.find("\r\n");
if (first == string::npos) {
return -1;
}
password = data.substr(0, first);
payload = data.substr(first + 2);
if (payload.length() == 0 || (payload[0] != CONNECT && payload[0] != UDP_ASSOCIATE)) {
return -1;
}
command = static_cast<Command>(payload[0]);
size_t address_len;
bool is_addr_valid = address.parse(payload.substr(1), address_len);
if (!is_addr_valid || payload.length() < address_len + 3 || payload.substr(address_len + 1, 2) != "\r\n") {
return -1;
}
payload = payload.substr(address_len + 3);
return data.length();
}
string TrojanRequest::generate(const string &password, const string &domainname, uint16_t port, bool tcp) {
string ret = password + "\r\n";
if (tcp) {
ret += '\x01';
} else {
ret += '\x03';
}
ret += '\x03';
ret += char(uint8_t(domainname.length()));
ret += domainname;
ret += char(uint8_t(port >> 8));
ret += char(uint8_t(port & 0xFF));
ret += "\r\n";
return ret;
}
================================================
FILE: src/proto/trojanrequest.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TROJANREQUEST_H_
#define _TROJANREQUEST_H_
#include "socks5address.h"
class TrojanRequest {
public:
std::string password;
enum Command {
CONNECT = 1,
UDP_ASSOCIATE = 3
} command;
SOCKS5Address address;
std::string payload;
int parse(const std::string &data);
static std::string generate(const std::string &password, const std::string &domainname, uint16_t port, bool tcp);
};
#endif // _TROJANREQUEST_H_
================================================
FILE: src/proto/udppacket.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "udppacket.h"
using namespace std;
using namespace boost::asio::ip;
bool UDPPacket::parse(const string &data, size_t &udp_packet_len) {
if (data.length() <= 0) {
return false;
}
size_t address_len;
bool is_addr_valid = address.parse(data, address_len);
if (!is_addr_valid || data.length() < address_len + 2) {
return false;
}
length = (uint8_t(data[address_len]) << 8) | uint8_t(data[address_len + 1]);
if (data.length() < address_len + 4 + length || data.substr(address_len + 2, 2) != "\r\n") {
return false;
}
payload = data.substr(address_len + 4, length);
udp_packet_len = address_len + 4 + length;
return true;
}
string UDPPacket::generate(const udp::endpoint &endpoint, const string &payload) {
string ret = SOCKS5Address::generate(endpoint);
ret += char(uint8_t(payload.length() >> 8));
ret += char(uint8_t(payload.length() & 0xFF));
ret += "\r\n";
ret += payload;
return ret;
}
string UDPPacket::generate(const string &domainname, uint16_t port, const string &payload) {
string ret = "\x03";
ret += char(uint8_t(domainname.length()));
ret += domainname;
ret += char(uint8_t(port >> 8));
ret += char(uint8_t(port & 0xFF));
ret += char(uint8_t(payload.length() >> 8));
ret += char(uint8_t(payload.length() & 0xFF));
ret += "\r\n";
ret += payload;
return ret;
}
================================================
FILE: src/proto/udppacket.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _UDPPACKET_H_
#define _UDPPACKET_H_
#include "socks5address.h"
class UDPPacket {
public:
SOCKS5Address address;
uint16_t length;
std::string payload;
bool parse(const std::string &data, size_t &udp_packet_len);
static std::string generate(const boost::asio::ip::udp::endpoint &endpoint, const std::string &payload);
static std::string generate(const std::string &domainname, uint16_t port, const std::string &payload);
};
#endif // _UDPPACKET_H_
================================================
FILE: src/session/clientsession.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "clientsession.h"
#include "proto/trojanrequest.h"
#include "proto/udppacket.h"
#include "ssl/sslsession.h"
using namespace std;
using namespace boost::asio::ip;
using namespace boost::asio::ssl;
ClientSession::ClientSession(const Config &config, boost::asio::io_context &io_context, context &ssl_context) :
Session(config, io_context),
status(HANDSHAKE),
first_packet_recv(false),
in_socket(io_context),
out_socket(io_context, ssl_context) {}
tcp::socket& ClientSession::accept_socket() {
return in_socket;
}
void ClientSession::start() {
boost::system::error_code ec;
start_time = time(nullptr);
in_endpoint = in_socket.remote_endpoint(ec);
if (ec) {
destroy();
return;
}
auto ssl = out_socket.native_handle();
if (!config.ssl.sni.empty()) {
SSL_set_tlsext_host_name(ssl, config.ssl.sni.c_str());
}
if (config.ssl.reuse_session) {
SSL_SESSION *session = SSLSession::get_session();
if (session) {
SSL_set_session(ssl, session);
}
}
in_async_read();
}
void ClientSession::in_async_read() {
auto self = shared_from_this();
in_socket.async_read_some(boost::asio::buffer(in_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error == boost::asio::error::operation_aborted) {
return;
}
if (error) {
destroy();
return;
}
in_recv(string((const char*)in_read_buf, length));
});
}
void ClientSession::in_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(in_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
in_sent();
});
}
void ClientSession::out_async_read() {
auto self = shared_from_this();
out_socket.async_read_some(boost::asio::buffer(out_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error) {
destroy();
return;
}
out_recv(string((const char*)out_read_buf, length));
});
}
void ClientSession::out_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(out_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
out_sent();
});
}
void ClientSession::udp_async_read() {
auto self = shared_from_this();
udp_socket.async_receive_from(boost::asio::buffer(udp_read_buf, MAX_LENGTH), udp_recv_endpoint, [this, self](const boost::system::error_code error, size_t length) {
if (error == boost::asio::error::operation_aborted) {
return;
}
if (error) {
destroy();
return;
}
udp_recv(string((const char*)udp_read_buf, length), udp_recv_endpoint);
});
}
void ClientSession::udp_async_write(const string &data, const udp::endpoint &endpoint) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
udp_socket.async_send_to(boost::asio::buffer(*data_copy), endpoint, [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
udp_sent();
});
}
void ClientSession::in_recv(const string &data) {
switch (status) {
case HANDSHAKE: {
if (data.length() < 2 || data[0] != 5 || data.length() != (unsigned int)(unsigned char)data[1] + 2) {
Log::log_with_endpoint(in_endpoint, "unknown protocol", Log::ERROR);
destroy();
return;
}
bool has_method = false;
for (int i = 2; i < data[1] + 2; ++i) {
if (data[i] == 0) {
has_method = true;
break;
}
}
if (!has_method) {
Log::log_with_endpoint(in_endpoint, "unsupported auth method", Log::ERROR);
in_async_write(string("\x05\xff", 2));
status = INVALID;
return;
}
in_async_write(string("\x05\x00", 2));
break;
}
case REQUEST: {
if (data.length() < 7 || data[0] != 5 || data[2] != 0) {
Log::log_with_endpoint(in_endpoint, "bad request", Log::ERROR);
destroy();
return;
}
out_write_buf = config.password.cbegin()->first + "\r\n" + data[1] + data.substr(3) + "\r\n";
TrojanRequest req;
if (req.parse(out_write_buf) == -1) {
Log::log_with_endpoint(in_endpoint, "unsupported command", Log::ERROR);
in_async_write(string("\x05\x07\x00\x01\x00\x00\x00\x00\x00\x00", 10));
status = INVALID;
return;
}
is_udp = req.command == TrojanRequest::UDP_ASSOCIATE;
if (is_udp) {
udp::endpoint bindpoint(in_socket.local_endpoint().address(), 0);
boost::system::error_code ec;
udp_socket.open(bindpoint.protocol(), ec);
if (ec) {
destroy();
return;
}
udp_socket.bind(bindpoint);
Log::log_with_endpoint(in_endpoint, "requested UDP associate to " + req.address.address + ':' + to_string(req.address.port) + ", open UDP socket " + udp_socket.local_endpoint().address().to_string() + ':' + to_string(udp_socket.local_endpoint().port()) + " for relay", Log::INFO);
in_async_write(string("\x05\x00\x00", 3) + SOCKS5Address::generate(udp_socket.local_endpoint()));
} else {
Log::log_with_endpoint(in_endpoint, "requested connection to " + req.address.address + ':' + to_string(req.address.port), Log::INFO);
in_async_write(string("\x05\x00\x00\x01\x00\x00\x00\x00\x00\x00", 10));
}
break;
}
case CONNECT: {
sent_len += data.length();
first_packet_recv = true;
out_write_buf += data;
break;
}
case FORWARD: {
sent_len += data.length();
out_async_write(data);
break;
}
case UDP_FORWARD: {
Log::log_with_endpoint(in_endpoint, "unexpected data from TCP port", Log::ERROR);
destroy();
break;
}
default: break;
}
}
void ClientSession::in_sent() {
switch (status) {
case HANDSHAKE: {
status = REQUEST;
in_async_read();
break;
}
case REQUEST: {
status = CONNECT;
in_async_read();
if (is_udp) {
udp_async_read();
}
auto self = shared_from_this();
resolver.async_resolve(config.remote_addr, to_string(config.remote_port), [this, self](const boost::system::error_code error, const tcp::resolver::results_type& results) {
if (error || results.empty()) {
Log::log_with_endpoint(in_endpoint, "cannot resolve remote server hostname " + config.remote_addr + ": " + error.message(), Log::ERROR);
destroy();
return;
}
auto iterator = results.begin();
Log::log_with_endpoint(in_endpoint, config.remote_addr + " is resolved to " + iterator->endpoint().address().to_string(), Log::ALL);
boost::system::error_code ec;
out_socket.next_layer().open(iterator->endpoint().protocol(), ec);
if (ec) {
destroy();
return;
}
if (config.tcp.no_delay) {
out_socket.next_layer().set_option(tcp::no_delay(true));
}
if (config.tcp.keep_alive) {
out_socket.next_layer().set_option(boost::asio::socket_base::keep_alive(true));
}
#ifdef TCP_FASTOPEN_CONNECT
if (config.tcp.fast_open) {
using fastopen_connect = boost::asio::detail::socket_option::boolean<IPPROTO_TCP, TCP_FASTOPEN_CONNECT>;
boost::system::error_code ec;
out_socket.next_layer().set_option(fastopen_connect(true), ec);
}
#endif // TCP_FASTOPEN_CONNECT
out_socket.next_layer().async_connect(*iterator, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "cannot establish connection to remote server " + config.remote_addr + ':' + to_string(config.remote_port) + ": " + error.message(), Log::ERROR);
destroy();
return;
}
out_socket.async_handshake(stream_base::client, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "SSL handshake failed with " + config.remote_addr + ':' + to_string(config.remote_port) + ": " + error.message(), Log::ERROR);
destroy();
return;
}
Log::log_with_endpoint(in_endpoint, "tunnel established");
if (config.ssl.reuse_session) {
auto ssl = out_socket.native_handle();
if (!SSL_session_reused(ssl)) {
Log::log_with_endpoint(in_endpoint, "SSL session not reused");
} else {
Log::log_with_endpoint(in_endpoint, "SSL session reused");
}
}
boost::system::error_code ec;
if (is_udp) {
if (!first_packet_recv) {
udp_socket.cancel(ec);
}
status = UDP_FORWARD;
} else {
if (!first_packet_recv) {
in_socket.cancel(ec);
}
status = FORWARD;
}
out_async_read();
out_async_write(out_write_buf);
});
});
});
break;
}
case FORWARD: {
out_async_read();
break;
}
case INVALID: {
destroy();
break;
}
default: break;
}
}
void ClientSession::out_recv(const string &data) {
if (status == FORWARD) {
recv_len += data.length();
in_async_write(data);
} else if (status == UDP_FORWARD) {
udp_data_buf += data;
udp_sent();
}
}
void ClientSession::out_sent() {
if (status == FORWARD) {
in_async_read();
} else if (status == UDP_FORWARD) {
udp_async_read();
}
}
void ClientSession::udp_recv(const string &data, const udp::endpoint&) {
if (data.length() == 0) {
return;
}
if (data.length() < 3 || data[0] || data[1] || data[2]) {
Log::log_with_endpoint(in_endpoint, "bad UDP packet", Log::ERROR);
destroy();
return;
}
SOCKS5Address address;
size_t address_len;
bool is_addr_valid = address.parse(data.substr(3), address_len);
if (!is_addr_valid) {
Log::log_with_endpoint(in_endpoint, "bad UDP packet", Log::ERROR);
destroy();
return;
}
size_t length = data.length() - 3 - address_len;
Log::log_with_endpoint(in_endpoint, "sent a UDP packet of length " + to_string(length) + " bytes to " + address.address + ':' + to_string(address.port));
string packet = data.substr(3, address_len) + char(uint8_t(length >> 8)) + char(uint8_t(length & 0xFF)) + "\r\n" + data.substr(address_len + 3);
sent_len += length;
if (status == CONNECT) {
first_packet_recv = true;
out_write_buf += packet;
} else if (status == UDP_FORWARD) {
out_async_write(packet);
}
}
void ClientSession::udp_sent() {
if (status == UDP_FORWARD) {
UDPPacket packet;
size_t packet_len;
bool is_packet_valid = packet.parse(udp_data_buf, packet_len);
if (!is_packet_valid) {
if (udp_data_buf.length() > MAX_LENGTH) {
Log::log_with_endpoint(in_endpoint, "UDP packet too long", Log::ERROR);
destroy();
return;
}
out_async_read();
return;
}
Log::log_with_endpoint(in_endpoint, "received a UDP packet of length " + to_string(packet.length) + " bytes from " + packet.address.address + ':' + to_string(packet.address.port));
SOCKS5Address address;
size_t address_len;
bool is_addr_valid = address.parse(udp_data_buf, address_len);
if (!is_addr_valid) {
Log::log_with_endpoint(in_endpoint, "udp_sent: invalid UDP packet address", Log::ERROR);
destroy();
return;
}
string reply = string("\x00\x00\x00", 3) + udp_data_buf.substr(0, address_len) + packet.payload;
udp_data_buf = udp_data_buf.substr(packet_len);
recv_len += packet.length;
udp_async_write(reply, udp_recv_endpoint);
}
}
void ClientSession::destroy() {
if (status == DESTROY) {
return;
}
status = DESTROY;
Log::log_with_endpoint(in_endpoint, "disconnected, " + to_string(recv_len) + " bytes received, " + to_string(sent_len) + " bytes sent, lasted for " + to_string(time(nullptr) - start_time) + " seconds", Log::INFO);
boost::system::error_code ec;
resolver.cancel();
if (in_socket.is_open()) {
in_socket.cancel(ec);
in_socket.shutdown(tcp::socket::shutdown_both, ec);
in_socket.close(ec);
}
if (udp_socket.is_open()) {
udp_socket.cancel(ec);
udp_socket.close(ec);
}
if (out_socket.next_layer().is_open()) {
auto self = shared_from_this();
auto ssl_shutdown_cb = [this, self](const boost::system::error_code error) {
if (error == boost::asio::error::operation_aborted) {
return;
}
boost::system::error_code ec;
ssl_shutdown_timer.cancel();
out_socket.next_layer().cancel(ec);
out_socket.next_layer().shutdown(tcp::socket::shutdown_both, ec);
out_socket.next_layer().close(ec);
};
out_socket.next_layer().cancel(ec);
out_socket.async_shutdown(ssl_shutdown_cb);
ssl_shutdown_timer.expires_after(chrono::seconds(SSL_SHUTDOWN_TIMEOUT));
ssl_shutdown_timer.async_wait(ssl_shutdown_cb);
}
}
================================================
FILE: src/session/clientsession.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _CLIENTSESSION_H_
#define _CLIENTSESSION_H_
#include "session.h"
#include <boost/asio/ssl.hpp>
class ClientSession : public Session {
private:
enum Status {
HANDSHAKE,
REQUEST,
CONNECT,
FORWARD,
UDP_FORWARD,
INVALID,
DESTROY
} status;
bool is_udp{};
bool first_packet_recv;
boost::asio::ip::tcp::socket in_socket;
boost::asio::ssl::stream<boost::asio::ip::tcp::socket>out_socket;
void destroy();
void in_async_read();
void in_async_write(const std::string &data);
void in_recv(const std::string &data);
void in_sent();
void out_async_read();
void out_async_write(const std::string &data);
void out_recv(const std::string &data);
void out_sent();
void udp_async_read();
void udp_async_write(const std::string &data, const boost::asio::ip::udp::endpoint &endpoint);
void udp_recv(const std::string &data, const boost::asio::ip::udp::endpoint &endpoint);
void udp_sent();
public:
ClientSession(const Config &config, boost::asio::io_context &io_context, boost::asio::ssl::context &ssl_context);
boost::asio::ip::tcp::socket& accept_socket() override;
void start() override;
};
#endif // _CLIENTSESSION_H_
================================================
FILE: src/session/forwardsession.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "forwardsession.h"
#include "proto/trojanrequest.h"
#include "ssl/sslsession.h"
using namespace std;
using namespace boost::asio::ip;
using namespace boost::asio::ssl;
ForwardSession::ForwardSession(const Config &config, boost::asio::io_context &io_context, context &ssl_context) :
Session(config, io_context),
status(CONNECT),
first_packet_recv(false),
in_socket(io_context),
out_socket(io_context, ssl_context) {}
tcp::socket& ForwardSession::accept_socket() {
return in_socket;
}
void ForwardSession::start() {
boost::system::error_code ec;
start_time = time(nullptr);
in_endpoint = in_socket.remote_endpoint(ec);
if (ec) {
destroy();
return;
}
auto ssl = out_socket.native_handle();
if (!config.ssl.sni.empty()) {
SSL_set_tlsext_host_name(ssl, config.ssl.sni.c_str());
}
if (config.ssl.reuse_session) {
SSL_SESSION *session = SSLSession::get_session();
if (session) {
SSL_set_session(ssl, session);
}
}
out_write_buf = TrojanRequest::generate(config.password.cbegin()->first, config.target_addr, config.target_port, true);
in_async_read();
Log::log_with_endpoint(in_endpoint, "forwarding to " + config.target_addr + ':' + to_string(config.target_port) + " via " + config.remote_addr + ':' + to_string(config.remote_port), Log::INFO);
auto self = shared_from_this();
resolver.async_resolve(config.remote_addr, to_string(config.remote_port), [this, self](const boost::system::error_code error, const tcp::resolver::results_type& results) {
if (error || results.empty()) {
Log::log_with_endpoint(in_endpoint, "cannot resolve remote server hostname " + config.remote_addr + ": " + error.message(), Log::ERROR);
destroy();
return;
}
auto iterator = results.begin();
Log::log_with_endpoint(in_endpoint, config.remote_addr + " is resolved to " + iterator->endpoint().address().to_string(), Log::ALL);
boost::system::error_code ec;
out_socket.next_layer().open(iterator->endpoint().protocol(), ec);
if (ec) {
destroy();
return;
}
if (config.tcp.no_delay) {
out_socket.next_layer().set_option(tcp::no_delay(true));
}
if (config.tcp.keep_alive) {
out_socket.next_layer().set_option(boost::asio::socket_base::keep_alive(true));
}
#ifdef TCP_FASTOPEN_CONNECT
if (config.tcp.fast_open) {
using fastopen_connect = boost::asio::detail::socket_option::boolean<IPPROTO_TCP, TCP_FASTOPEN_CONNECT>;
boost::system::error_code ec;
out_socket.next_layer().set_option(fastopen_connect(true), ec);
}
#endif // TCP_FASTOPEN_CONNECT
out_socket.next_layer().async_connect(*iterator, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "cannot establish connection to remote server " + config.remote_addr + ':' + to_string(config.remote_port) + ": " + error.message(), Log::ERROR);
destroy();
return;
}
out_socket.async_handshake(stream_base::client, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "SSL handshake failed with " + config.remote_addr + ':' + to_string(config.remote_port) + ": " + error.message(), Log::ERROR);
destroy();
return;
}
Log::log_with_endpoint(in_endpoint, "tunnel established");
if (config.ssl.reuse_session) {
auto ssl = out_socket.native_handle();
if (!SSL_session_reused(ssl)) {
Log::log_with_endpoint(in_endpoint, "SSL session not reused");
} else {
Log::log_with_endpoint(in_endpoint, "SSL session reused");
}
}
boost::system::error_code ec;
if (!first_packet_recv) {
in_socket.cancel(ec);
}
status = FORWARD;
out_async_read();
out_async_write(out_write_buf);
});
});
});
}
void ForwardSession::in_async_read() {
auto self = shared_from_this();
in_socket.async_read_some(boost::asio::buffer(in_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error == boost::asio::error::operation_aborted) {
return;
}
if (error) {
destroy();
return;
}
in_recv(string((const char*)in_read_buf, length));
});
}
void ForwardSession::in_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(in_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
in_sent();
});
}
void ForwardSession::out_async_read() {
auto self = shared_from_this();
out_socket.async_read_some(boost::asio::buffer(out_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error) {
destroy();
return;
}
out_recv(string((const char*)out_read_buf, length));
});
}
void ForwardSession::out_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(out_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
out_sent();
});
}
void ForwardSession::in_recv(const string &data) {
if (status == CONNECT) {
sent_len += data.length();
first_packet_recv = true;
out_write_buf += data;
} else if (status == FORWARD) {
sent_len += data.length();
out_async_write(data);
}
}
void ForwardSession::in_sent() {
if (status == FORWARD) {
out_async_read();
}
}
void ForwardSession::out_recv(const string &data) {
if (status == FORWARD) {
recv_len += data.length();
in_async_write(data);
}
}
void ForwardSession::out_sent() {
if (status == FORWARD) {
in_async_read();
}
}
void ForwardSession::destroy() {
if (status == DESTROY) {
return;
}
status = DESTROY;
Log::log_with_endpoint(in_endpoint, "disconnected, " + to_string(recv_len) + " bytes received, " + to_string(sent_len) + " bytes sent, lasted for " + to_string(time(nullptr) - start_time) + " seconds", Log::INFO);
boost::system::error_code ec;
resolver.cancel();
if (in_socket.is_open()) {
in_socket.cancel(ec);
in_socket.shutdown(tcp::socket::shutdown_both, ec);
in_socket.close(ec);
}
if (out_socket.next_layer().is_open()) {
auto self = shared_from_this();
auto ssl_shutdown_cb = [this, self](const boost::system::error_code error) {
if (error == boost::asio::error::operation_aborted) {
return;
}
boost::system::error_code ec;
ssl_shutdown_timer.cancel();
out_socket.next_layer().cancel(ec);
out_socket.next_layer().shutdown(tcp::socket::shutdown_both, ec);
out_socket.next_layer().close(ec);
};
out_socket.next_layer().cancel(ec);
out_socket.async_shutdown(ssl_shutdown_cb);
ssl_shutdown_timer.expires_after(chrono::seconds(SSL_SHUTDOWN_TIMEOUT));
ssl_shutdown_timer.async_wait(ssl_shutdown_cb);
}
}
================================================
FILE: src/session/forwardsession.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _FORWARDSESSION_H_
#define _FORWARDSESSION_H_
#include "session.h"
#include <boost/asio/ssl.hpp>
class ForwardSession : public Session {
private:
enum Status {
CONNECT,
FORWARD,
DESTROY
} status;
bool first_packet_recv;
boost::asio::ip::tcp::socket in_socket;
boost::asio::ssl::stream<boost::asio::ip::tcp::socket>out_socket;
void destroy();
void in_async_read();
void in_async_write(const std::string &data);
void in_recv(const std::string &data);
void in_sent();
void out_async_read();
void out_async_write(const std::string &data);
void out_recv(const std::string &data);
void out_sent();
public:
ForwardSession(const Config &config, boost::asio::io_context &io_context, boost::asio::ssl::context &ssl_context);
boost::asio::ip::tcp::socket& accept_socket() override;
void start() override;
};
#endif // _FORWARDSESSION_H_
================================================
FILE: src/session/natsession.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "natsession.h"
#include "proto/trojanrequest.h"
#include "ssl/sslsession.h"
using namespace std;
using namespace boost::asio::ip;
using namespace boost::asio::ssl;
// These 2 definitions are respectively from linux/netfilter_ipv4.h and
// linux/netfilter_ipv6/ip6_tables.h. Including them will 1) cause linux-headers
// to be one of trojan's dependencies, which is not good, and 2) prevent trojan
// from even compiling.
#ifndef SO_ORIGINAL_DST
#define SO_ORIGINAL_DST 80
#endif // SO_ORIGINAL_DST
#ifndef IP6T_SO_ORIGINAL_DST
#define IP6T_SO_ORIGINAL_DST 80
#endif // IP6T_SO_ORIGINAL_DST
NATSession::NATSession(const Config &config, boost::asio::io_context &io_context, context &ssl_context) :
Session(config, io_context),
status(CONNECT),
first_packet_recv(false),
in_socket(io_context),
out_socket(io_context, ssl_context) {}
tcp::socket& NATSession::accept_socket() {
return in_socket;
}
pair<string, uint16_t> NATSession::get_target_endpoint() {
#ifdef ENABLE_NAT
int fd = in_socket.native_handle();
// Taken from https://github.com/shadowsocks/shadowsocks-libev/blob/v3.3.1/src/redir.c.
sockaddr_storage destaddr;
memset(&destaddr, 0, sizeof(sockaddr_storage));
socklen_t socklen = sizeof(destaddr);
int error = getsockopt(fd, SOL_IPV6, IP6T_SO_ORIGINAL_DST, &destaddr, &socklen);
if (error) {
error = getsockopt(fd, SOL_IP, SO_ORIGINAL_DST, &destaddr, &socklen);
if (error) {
return make_pair("", 0);
}
}
char ipstr[INET6_ADDRSTRLEN];
uint16_t port;
if (destaddr.ss_family == AF_INET) {
auto *sa = (sockaddr_in*) &destaddr;
inet_ntop(AF_INET, &(sa->sin_addr), ipstr, INET_ADDRSTRLEN);
port = ntohs(sa->sin_port);
} else {
auto *sa = (sockaddr_in6*) &destaddr;
inet_ntop(AF_INET6, &(sa->sin6_addr), ipstr, INET6_ADDRSTRLEN);
port = ntohs(sa->sin6_port);
}
return make_pair(ipstr, port);
#else // ENABLE_NAT
return make_pair("", 0);
#endif // ENABLE_NAT
}
void NATSession::start() {
boost::system::error_code ec;
start_time = time(nullptr);
in_endpoint = in_socket.remote_endpoint(ec);
if (ec) {
destroy();
return;
}
auto ssl = out_socket.native_handle();
if (!config.ssl.sni.empty()) {
SSL_set_tlsext_host_name(ssl, config.ssl.sni.c_str());
}
if (config.ssl.reuse_session) {
SSL_SESSION *session = SSLSession::get_session();
if (session) {
SSL_set_session(ssl, session);
}
}
auto target_endpoint = get_target_endpoint();
string &target_addr = target_endpoint.first;
uint16_t target_port = target_endpoint.second;
if (target_port == 0) {
destroy();
return;
}
out_write_buf = TrojanRequest::generate(config.password.cbegin()->first, target_addr, target_port, true);
in_async_read();
Log::log_with_endpoint(in_endpoint, "forwarding to " + target_addr + ':' + to_string(target_port) + " via " + config.remote_addr + ':' + to_string(config.remote_port), Log::INFO);
auto self = shared_from_this();
resolver.async_resolve(config.remote_addr, to_string(config.remote_port), [this, self](const boost::system::error_code error, const tcp::resolver::results_type& results) {
if (error || results.empty()) {
Log::log_with_endpoint(in_endpoint, "cannot resolve remote server hostname " + config.remote_addr + ": " + error.message(), Log::ERROR);
destroy();
return;
}
auto iterator = results.begin();
Log::log_with_endpoint(in_endpoint, config.remote_addr + " is resolved to " + iterator->endpoint().address().to_string(), Log::ALL);
boost::system::error_code ec;
out_socket.next_layer().open(iterator->endpoint().protocol(), ec);
if (ec) {
destroy();
return;
}
if (config.tcp.no_delay) {
out_socket.next_layer().set_option(tcp::no_delay(true));
}
if (config.tcp.keep_alive) {
out_socket.next_layer().set_option(boost::asio::socket_base::keep_alive(true));
}
#ifdef TCP_FASTOPEN_CONNECT
if (config.tcp.fast_open) {
using fastopen_connect = boost::asio::detail::socket_option::boolean<IPPROTO_TCP, TCP_FASTOPEN_CONNECT>;
boost::system::error_code ec;
out_socket.next_layer().set_option(fastopen_connect(true), ec);
}
#endif // TCP_FASTOPEN_CONNECT
out_socket.next_layer().async_connect(*iterator, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "cannot establish connection to remote server " + config.remote_addr + ':' + to_string(config.remote_port) + ": " + error.message(), Log::ERROR);
destroy();
return;
}
out_socket.async_handshake(stream_base::client, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "SSL handshake failed with " + config.remote_addr + ':' + to_string(config.remote_port) + ": " + error.message(), Log::ERROR);
destroy();
return;
}
Log::log_with_endpoint(in_endpoint, "tunnel established");
if (config.ssl.reuse_session) {
auto ssl = out_socket.native_handle();
if (!SSL_session_reused(ssl)) {
Log::log_with_endpoint(in_endpoint, "SSL session not reused");
} else {
Log::log_with_endpoint(in_endpoint, "SSL session reused");
}
}
boost::system::error_code ec;
if (!first_packet_recv) {
in_socket.cancel(ec);
}
status = FORWARD;
out_async_read();
out_async_write(out_write_buf);
});
});
});
}
void NATSession::in_async_read() {
auto self = shared_from_this();
in_socket.async_read_some(boost::asio::buffer(in_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error == boost::asio::error::operation_aborted) {
return;
}
if (error) {
destroy();
return;
}
in_recv(string((const char*)in_read_buf, length));
});
}
void NATSession::in_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(in_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
in_sent();
});
}
void NATSession::out_async_read() {
auto self = shared_from_this();
out_socket.async_read_some(boost::asio::buffer(out_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error) {
destroy();
return;
}
out_recv(string((const char*)out_read_buf, length));
});
}
void NATSession::out_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(out_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
out_sent();
});
}
void NATSession::in_recv(const string &data) {
if (status == CONNECT) {
sent_len += data.length();
first_packet_recv = true;
out_write_buf += data;
} else if (status == FORWARD) {
sent_len += data.length();
out_async_write(data);
}
}
void NATSession::in_sent() {
if (status == FORWARD) {
out_async_read();
}
}
void NATSession::out_recv(const string &data) {
if (status == FORWARD) {
recv_len += data.length();
in_async_write(data);
}
}
void NATSession::out_sent() {
if (status == FORWARD) {
in_async_read();
}
}
void NATSession::destroy() {
if (status == DESTROY) {
return;
}
status = DESTROY;
Log::log_with_endpoint(in_endpoint, "disconnected, " + to_string(recv_len) + " bytes received, " + to_string(sent_len) + " bytes sent, lasted for " + to_string(time(nullptr) - start_time) + " seconds", Log::INFO);
boost::system::error_code ec;
resolver.cancel();
if (in_socket.is_open()) {
in_socket.cancel(ec);
in_socket.shutdown(tcp::socket::shutdown_both, ec);
in_socket.close(ec);
}
if (out_socket.next_layer().is_open()) {
auto self = shared_from_this();
auto ssl_shutdown_cb = [this, self](const boost::system::error_code error) {
if (error == boost::asio::error::operation_aborted) {
return;
}
boost::system::error_code ec;
ssl_shutdown_timer.cancel();
out_socket.next_layer().cancel(ec);
out_socket.next_layer().shutdown(tcp::socket::shutdown_both, ec);
out_socket.next_layer().close(ec);
};
out_socket.next_layer().cancel(ec);
out_socket.async_shutdown(ssl_shutdown_cb);
ssl_shutdown_timer.expires_after(chrono::seconds(SSL_SHUTDOWN_TIMEOUT));
ssl_shutdown_timer.async_wait(ssl_shutdown_cb);
}
}
================================================
FILE: src/session/natsession.h
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _NATSESSION_H_
#define _NATSESSION_H_
#include "session.h"
#include <boost/asio/ssl.hpp>
class NATSession : public Session {
private:
enum Status {
CONNECT,
FORWARD,
DESTROY
} status;
bool first_packet_recv;
boost::asio::ip::tcp::socket in_socket;
boost::asio::ssl::stream<boost::asio::ip::tcp::socket>out_socket;
void destroy();
void in_async_read();
void in_async_write(const std::string &data);
void in_recv(const std::string &data);
void in_sent();
void out_async_read();
void out_async_write(const std::string &data);
void out_recv(const std::string &data);
void out_sent();
std::pair<std::string, uint16_t> get_target_endpoint();
public:
NATSession(const Config &config, boost::asio::io_context &io_context, boost::asio::ssl::context &ssl_context);
boost::asio::ip::tcp::socket& accept_socket() override;
void start() override;
};
#endif // _NATSESSION_H_
================================================
FILE: src/session/serversession.cpp
================================================
/*
* This file is part of the trojan project.
* Trojan is an unidentifiable mechanism that helps you bypass GFW.
* Copyright (C) 2017-2020 The Trojan Authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "serversession.h"
#include "proto/trojanrequest.h"
#include "proto/udppacket.h"
using namespace std;
using namespace boost::asio::ip;
using namespace boost::asio::ssl;
ServerSession::ServerSession(const Config &config, boost::asio::io_context &io_context, context &ssl_context, Authenticator *auth, const string &plain_http_response) :
Session(config, io_context),
status(HANDSHAKE),
in_socket(io_context, ssl_context),
out_socket(io_context),
udp_resolver(io_context),
auth(auth),
plain_http_response(plain_http_response) {}
tcp::socket& ServerSession::accept_socket() {
return (tcp::socket&)in_socket.next_layer();
}
void ServerSession::start() {
boost::system::error_code ec;
start_time = time(nullptr);
in_endpoint = in_socket.next_layer().remote_endpoint(ec);
if (ec) {
destroy();
return;
}
auto self = shared_from_this();
in_socket.async_handshake(stream_base::server, [this, self](const boost::system::error_code error) {
if (error) {
Log::log_with_endpoint(in_endpoint, "SSL handshake failed: " + error.message(), Log::ERROR);
if (error.message() == "http request" && !plain_http_response.empty()) {
recv_len += plain_http_response.length();
boost::asio::async_write(accept_socket(), boost::asio::buffer(plain_http_response), [this, self](const boost::system::error_code, size_t) {
destroy();
});
return;
}
destroy();
return;
}
in_async_read();
});
}
void ServerSession::in_async_read() {
auto self = shared_from_this();
in_socket.async_read_some(boost::asio::buffer(in_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error) {
destroy();
return;
}
in_recv(string((const char*)in_read_buf, length));
});
}
void ServerSession::in_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(in_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
in_sent();
});
}
void ServerSession::out_async_read() {
auto self = shared_from_this();
out_socket.async_read_some(boost::asio::buffer(out_read_buf, MAX_LENGTH), [this, self](const boost::system::error_code error, size_t length) {
if (error) {
destroy();
return;
}
out_recv(string((const char*)out_read_buf, length));
});
}
void ServerSession::out_async_write(const string &data) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
boost::asio::async_write(out_socket, boost::asio::buffer(*data_copy), [this, self, data_copy](const boost::system::error_code error, size_t) {
if (error) {
destroy();
return;
}
out_sent();
});
}
void ServerSession::udp_async_read() {
auto self = shared_from_this();
udp_socket.async_receive_from(boost::asio::buffer(udp_read_buf, MAX_LENGTH), udp_recv_endpoint, [this, self](const boost::system::error_code error, size_t length) {
if (error) {
destroy();
return;
}
udp_recv(string((const char*)udp_read_buf, length), udp_recv_endpoint);
});
}
void ServerSession::udp_async_write(const string &data, const udp::endpoint &endpoint) {
auto self = shared_from_this();
auto data_copy = make_shared<string>(data);
udp_socket.async_send_to(boost::asio::buffer(*data_copy), endpoint, [this, self,
gitextract_1foy4gep/
├── .github/
│ └── ISSUE_TEMPLATE/
│ ├── bug_report.md
│ └── feature_request.md
├── .gitignore
├── .gitpod.Dockerfile
├── .gitpod.yml
├── CMakeLists.txt
├── CONTRIBUTING.md
├── CONTRIBUTORS.md
├── Dockerfile
├── LICENSE
├── README.md
├── SECURITY.md
├── azure-pipelines.yml
├── cmake/
│ └── FindMySQL.cmake
├── docs/
│ ├── README.md
│ ├── _config.yml
│ ├── authenticator.md
│ ├── build.md
│ ├── config.md
│ ├── overview.md
│ ├── protocol.md
│ ├── trojan.1
│ └── usage.md
├── examples/
│ ├── client.json-example
│ ├── forward.json-example
│ ├── nat.json-example
│ ├── server.json-example
│ └── trojan.service-example
├── scripts/
│ └── getcert.py
├── src/
│ ├── core/
│ │ ├── authenticator.cpp
│ │ ├── authenticator.h
│ │ ├── config.cpp
│ │ ├── config.h
│ │ ├── log.cpp
│ │ ├── log.h
│ │ ├── service.cpp
│ │ ├── service.h
│ │ ├── version.cpp
│ │ └── version.h
│ ├── main.cpp
│ ├── proto/
│ │ ├── socks5address.cpp
│ │ ├── socks5address.h
│ │ ├── trojanrequest.cpp
│ │ ├── trojanrequest.h
│ │ ├── udppacket.cpp
│ │ └── udppacket.h
│ ├── session/
│ │ ├── clientsession.cpp
│ │ ├── clientsession.h
│ │ ├── forwardsession.cpp
│ │ ├── forwardsession.h
│ │ ├── natsession.cpp
│ │ ├── natsession.h
│ │ ├── serversession.cpp
│ │ ├── serversession.h
│ │ ├── session.cpp
│ │ ├── session.h
│ │ ├── udpforwardsession.cpp
│ │ └── udpforwardsession.h
│ └── ssl/
│ ├── ssldefaults.cpp
│ ├── ssldefaults.h
│ ├── sslsession.cpp
│ └── sslsession.h
└── tests/
├── .gitignore
└── LinuxSmokeTest/
├── README.md
├── basic.sh
├── client.json
├── common.sh
├── fake-client.json
├── fake-client.sh
├── forward.json
└── server.json
SYMBOL INDEX (27 symbols across 24 files)
FILE: scripts/getcert.py
function input_with_default (line 24) | def input_with_default(prompt, default):
function main (line 29) | def main(argc, argv):
FILE: src/core/authenticator.h
function class (line 28) | class Authenticator {
FILE: src/core/config.cpp
function string (line 140) | string Config::SHA224(const string &message) {
FILE: src/core/config.h
function class (line 28) | class Config {
FILE: src/core/log.h
function class (line 31) | class Log {
FILE: src/core/service.h
function class (line 31) | class Service {
FILE: src/core/version.cpp
function string (line 25) | string Version::get_version() {
FILE: src/core/version.h
function class (line 25) | class Version {
FILE: src/main.cpp
function signal_async_wait (line 39) | void signal_async_wait(signal_set &sig, Service &service, bool &restart) {
function main (line 64) | int main(int argc, const char *argv[]) {
FILE: src/proto/socks5address.cpp
function string (line 76) | string SOCKS5Address::generate(const udp::endpoint &endpoint) {
FILE: src/proto/socks5address.h
function class (line 27) | class SOCKS5Address {
FILE: src/proto/trojanrequest.cpp
function string (line 43) | string TrojanRequest::generate(const string &password, const string &dom...
FILE: src/proto/trojanrequest.h
function class (line 25) | class TrojanRequest {
FILE: src/proto/udppacket.cpp
function string (line 42) | string UDPPacket::generate(const udp::endpoint &endpoint, const string &...
function string (line 51) | string UDPPacket::generate(const string &domainname, uint16_t port, cons...
FILE: src/proto/udppacket.h
function class (line 25) | class UDPPacket {
FILE: src/session/clientsession.h
function class (line 26) | class ClientSession : public Session {
FILE: src/session/forwardsession.h
function class (line 26) | class ForwardSession : public Session {
FILE: src/session/natsession.h
function class (line 26) | class NATSession : public Session {
FILE: src/session/serversession.h
function class (line 27) | class ServerSession : public Session {
FILE: src/session/session.h
function class (line 30) | class Session : public std::enable_shared_from_this<Session> {
FILE: src/session/udpforwardsession.h
function class (line 27) | class UDPForwardSession : public Session {
FILE: src/ssl/ssldefaults.h
function class (line 25) | class SSLDefaults {
FILE: src/ssl/sslsession.cpp
function SSL_SESSION (line 34) | SSL_SESSION *SSLSession::get_session() {
FILE: src/ssl/sslsession.h
function class (line 26) | class SSLSession {
Condensed preview — 71 files, each showing path, character count, and a content snippet. Download the .json file or copy for the full structured content (243K chars).
[
{
"path": ".github/ISSUE_TEMPLATE/bug_report.md",
"chars": 994,
"preview": "---\nname: Bug report\nabout: Create a report to help us improve\ntitle: \"[BUG]\"\nlabels: bug\nassignees: GreaterFire\n\n---\n\n-"
},
{
"path": ".github/ISSUE_TEMPLATE/feature_request.md",
"chars": 1016,
"preview": "---\nname: Feature request\nabout: Suggest an idea for this project\ntitle: \"[Feature Request]\"\nlabels: enhancement\nassigne"
},
{
"path": ".gitignore",
"chars": 531,
"preview": "# Prerequisites\n*.d\n\n# Compiled Object files\n*.slo\n*.lo\n*.o\n*.obj\n\n# Precompiled Headers\n*.gch\n*.pch\n\n# Compiled Dynamic"
},
{
"path": ".gitpod.Dockerfile",
"chars": 267,
"preview": "FROM gitpod/workspace-full\n\nUSER gitpod\n\nRUN sudo apt-get update && \\\n sudo apt-get install -y \\\n build-essent"
},
{
"path": ".gitpod.yml",
"chars": 34,
"preview": "image:\n file: .gitpod.Dockerfile\n"
},
{
"path": "CMakeLists.txt",
"chars": 4469,
"preview": "cmake_minimum_required(VERSION 3.7.2)\nproject(trojan CXX)\n\nset(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} \"${CMAKE_SOURCE_DI"
},
{
"path": "CONTRIBUTING.md",
"chars": 1945,
"preview": "# Contributing\n\nI want to first thank you for your interests in contributing to the Trojan project. Your contributions a"
},
{
"path": "CONTRIBUTORS.md",
"chars": 2629,
"preview": "# Contributors\n\n- [a-wing](https://github.com/a-wing)\n - Add Debian build instructions in the documentation.\n- [cybmp"
},
{
"path": "Dockerfile",
"chars": 553,
"preview": "FROM alpine:3.11\n\nCOPY . trojan\nRUN apk add --no-cache --virtual .build-deps \\\n build-base \\\n cmake \\\n "
},
{
"path": "LICENSE",
"chars": 35845,
"preview": " GNU GENERAL PUBLIC LICENSE\n Version 3, 29 June 2007\n\n Copyright (C) 2007 Free "
},
{
"path": "README.md",
"chars": 1224,
"preview": "# trojan\n\n[![Build Status](https://dev.azure.com/GreaterFire/Trojan-GFW/_apis/build/status/trojan-gfw.trojan?branchName="
},
{
"path": "SECURITY.md",
"chars": 3348,
"preview": "# Security Policy\n\n## Supported Version\n\nThe only version that is supported by Trojan-GFW is the latest version.\n\n## Rep"
},
{
"path": "azure-pipelines.yml",
"chars": 4627,
"preview": "stages:\n\n- stage: Build\n jobs:\n\n - job: Linux\n pool:\n vmImage: ubuntu-latest\n container:\n image: troja"
},
{
"path": "cmake/FindMySQL.cmake",
"chars": 1232,
"preview": "# - Find mysqlclient\n# Find the native MySQL includes and library\n#\n# MYSQL_INCLUDE_DIR - where to find mysql.h, etc.\n#"
},
{
"path": "docs/README.md",
"chars": 348,
"preview": "# Trojan Documentation\n\nTrojan is an unidentifiable mechanism for bypassing GFW. This documentation introduces the troja"
},
{
"path": "docs/_config.yml",
"chars": 48,
"preview": "theme: jekyll-theme-cayman\nshow_downloads: true\n"
},
{
"path": "docs/authenticator.md",
"chars": 1961,
"preview": "# Authenticator\n\nTrojan servers can authenticate users according to not only passwords in the config file but also entri"
},
{
"path": "docs/build.md",
"chars": 3072,
"preview": "# Build\n\nWe'll only cover the build process on Linux since we will be providing Windows and macOS binaries. Building tro"
},
{
"path": "docs/config.md",
"chars": 10450,
"preview": "# Config\n\nIn this page, we will look at the config file of trojan. Trojan uses [`JSON`](https://en.wikipedia.org/wiki/JS"
},
{
"path": "docs/overview.md",
"chars": 445,
"preview": "# Overview\n\nOn penetrating GFW, people assume that strong encryption and random obfuscation may cheat GFW's filtration m"
},
{
"path": "docs/protocol.md",
"chars": 3941,
"preview": "# The Trojan Protocol\n\nWe will now show how a trojan server will react to a **valid Trojan Protocol** and **other protoc"
},
{
"path": "docs/trojan.1",
"chars": 1124,
"preview": ".TH TROJAN 1 \"June 2020\" \"version 1.16.0\"\n.SH NAME\ntrojan \\- an unidentifiable mechanism that helps you bypass GFW\n.SH S"
},
{
"path": "docs/usage.md",
"chars": 1913,
"preview": "# Usage\n\n```\nusage: ./trojan [-htv] [-l LOG] [-k KEYLOG] [[-c] CONFIG]\noptions:\n -c [ --config ] CONFIG specify config "
},
{
"path": "examples/client.json-example",
"chars": 1096,
"preview": "{\n \"run_type\": \"client\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 1080,\n \"remote_addr\": \"example.com\",\n "
},
{
"path": "examples/forward.json-example",
"chars": 1177,
"preview": "{\n \"run_type\": \"forward\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 5901,\n \"remote_addr\": \"example.com\",\n "
},
{
"path": "examples/nat.json-example",
"chars": 1094,
"preview": "{\n \"run_type\": \"nat\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 12345,\n \"remote_addr\": \"example.com\",\n \""
},
{
"path": "examples/server.json-example",
"chars": 1474,
"preview": "{\n \"run_type\": \"server\",\n \"local_addr\": \"0.0.0.0\",\n \"local_port\": 443,\n \"remote_addr\": \"127.0.0.1\",\n \"rem"
},
{
"path": "examples/trojan.service-example",
"chars": 547,
"preview": "[Unit]\nDescription=trojan\nDocumentation=man:trojan(1) https://trojan-gfw.github.io/trojan/config https://trojan-gfw.gith"
},
{
"path": "scripts/getcert.py",
"chars": 1825,
"preview": "#!/usr/bin/env python3\n\n# This file is part of the trojan project.\n# Trojan is an unidentifiable mechanism that helps yo"
},
{
"path": "src/core/authenticator.cpp",
"chars": 4136,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/authenticator.h",
"chars": 1391,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/config.cpp",
"chars": 6398,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/config.h",
"chars": 2656,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/log.cpp",
"chars": 3265,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/log.h",
"chars": 1818,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/service.cpp",
"chars": 16496,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
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"path": "src/core/service.h",
"chars": 1820,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/version.cpp",
"chars": 956,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/core/version.h",
"chars": 1012,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/main.cpp",
"chars": 6669,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/proto/socks5address.cpp",
"chars": 3737,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/proto/socks5address.h",
"chars": 1292,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/proto/trojanrequest.cpp",
"chars": 1984,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/proto/trojanrequest.h",
"chars": 1277,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/proto/udppacket.cpp",
"chars": 2232,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/proto/udppacket.h",
"chars": 1298,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/clientsession.cpp",
"chars": 16158,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/clientsession.h",
"chars": 2073,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/forwardsession.cpp",
"chars": 8765,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/forwardsession.h",
"chars": 1746,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/natsession.cpp",
"chars": 10441,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/natsession.h",
"chars": 1786,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/serversession.cpp",
"chars": 14750,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/serversession.h",
"chars": 2217,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/session.cpp",
"chars": 1461,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/session.h",
"chars": 1923,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/udpforwardsession.cpp",
"chars": 9686,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/session/udpforwardsession.h",
"chars": 2011,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/ssl/ssldefaults.cpp",
"chars": 1437,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/ssl/ssldefaults.h",
"chars": 1023,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/ssl/sslsession.cpp",
"chars": 1415,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "src/ssl/sslsession.h",
"chars": 1228,
"preview": "/*\n * This file is part of the trojan project.\n * Trojan is an unidentifiable mechanism that helps you bypass GFW.\n * Co"
},
{
"path": "tests/.gitignore",
"chars": 38,
"preview": "# Allow config files in tests\n!*.json\n"
},
{
"path": "tests/LinuxSmokeTest/README.md",
"chars": 152,
"preview": "# Linux Smoke Test\n\n## Dependencies\n\n- curl\n- netcat\n- openssl\n- python3\n\n## Usage\n\n```\n./basic.sh /path/to/trojan\n./fak"
},
{
"path": "tests/LinuxSmokeTest/basic.sh",
"chars": 1027,
"preview": "#!/bin/bash\nset -eu\n\nsource \"$(dirname \"$0\")/common.sh\"\n\ncp server.json client.json forward.json \"$TMPDIR\"\ncd \"$TMPDIR\"\n"
},
{
"path": "tests/LinuxSmokeTest/client.json",
"chars": 665,
"preview": "{\n \"run_type\": \"client\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 11080,\n \"remote_addr\": \"127.0.0.1\",\n "
},
{
"path": "tests/LinuxSmokeTest/common.sh",
"chars": 490,
"preview": "function check_available() {\n if ! command -v \"$1\" > /dev/null; then\n echo \"$1 is required.\"\n exit 1\n "
},
{
"path": "tests/LinuxSmokeTest/fake-client.json",
"chars": 654,
"preview": "{\n \"run_type\": \"client\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 11080,\n \"remote_addr\": \"127.0.0.1\",\n "
},
{
"path": "tests/LinuxSmokeTest/fake-client.sh",
"chars": 960,
"preview": "#!/bin/bash\nset -u\n\nsource \"$(dirname \"$0\")/common.sh\"\n\ncp server.json fake-client.json forward.json \"$TMPDIR\"\ncd \"$TMPD"
},
{
"path": "tests/LinuxSmokeTest/forward.json",
"chars": 747,
"preview": "{\n \"run_type\": \"forward\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 20081,\n \"remote_addr\": \"127.0.0.1\",\n "
},
{
"path": "tests/LinuxSmokeTest/server.json",
"chars": 1049,
"preview": "{\n \"run_type\": \"server\",\n \"local_addr\": \"127.0.0.1\",\n \"local_port\": 10443,\n \"remote_addr\": \"127.0.0.1\",\n "
}
]
About this extraction
This page contains the full source code of the trojan-gfw/trojan GitHub repository, extracted and formatted as plain text for AI agents and large language models (LLMs). The extraction includes 71 files (226.1 KB), approximately 58.4k tokens, and a symbol index with 27 extracted functions, classes, methods, constants, and types. Use this with OpenClaw, Claude, ChatGPT, Cursor, Windsurf, or any other AI tool that accepts text input. You can copy the full output to your clipboard or download it as a .txt file.
Extracted by GitExtract — free GitHub repo to text converter for AI. Built by Nikandr Surkov.