[Question] Alpine Linux x86_64 Python 3.10 obfuscation problem

[dvkovner]

How can I obfuscate a custom application which is written in Python 3.10 using the licensed version of the pyarmor on Alpine Linux x86_64?

Alpine Linux Version:
bash-4.4$ cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.9.4
PRETTY_NAME="Alpine Linux v3.9"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://bugs.alpinelinux.org/"
bash-4.4$ uname -a
Linux 0114c498c296 5.10.102.1-microsoft-standard-WSL2 #1 SMP Wed Mar 2 00:30:59 UTC 2022 x86_64 Linux

Attempts performed:

1. pyarmor obfuscate --src lightrun --output build/lightrun --bootstrap 2 init.py main.py
   INFO PyArmor Version 7.6.1
   INFO Python 3.10.1
   INFO Target platforms: Native
   INFO Source path is "/usr/src/lightrun/python_agent/src/lightrun"
   INFO Entry scripts are ['lightrun/init.py', 'lightrun/main.py']
   INFO Use cached capsule /home/user/.pyarmor/.pyarmor_capsule.zip
   INFO Search scripts mode: Normal
   INFO Save obfuscated scripts to "build/lightrun"
   INFO Read product key from capsule
   INFO Obfuscate module mode is 2
   INFO Obfuscate code mode is 1
   INFO Obfuscate string value is False
   INFO Wrap mode is 1
   INFO Restrict mode is 1
   INFO Advanced value is 0
   INFO Super mode is False
   INFO Super plus mode is not enabled
   INFO Generating runtime files to build/lightrun/pytransform
   INFO Extract pytransform.key
   INFO Read default license from capsule
   INFO Copying /home/user/.pyenv/versions/3.10.1/lib/python3.10/site-packages/pyarmor/platforms/linux/x86_64/_pytransform.so
   INFO Patch library build/lightrun/pytransform/_pytransform.so
   INFO Patch library file OK
   INFO Copying /home/user/.pyenv/versions/3.10.1/lib/python3.10/site-packages/pyarmor/pytransform.py
   INFO Rename it to pytransform/init.py
   INFO Generate runtime files OK
   INFO Start obfuscating the scripts...
   INFO init.py -> build/lightrun/init.py
   INFO Insert bootstrap code to entry script build/lightrun/init.py
   INFO main.py -> build/lightrun/main.py
   INFO Patch this entry script with protection code
   INFO Insert bootstrap code to entry script build/lightrun/main.py
   INFO appengine_pretty_printers.py -> build/lightrun/appengine_pretty_printers.py
   INFO backoff.py -> build/lightrun/backoff.py
   INFO breakpoints_manager.py -> build/lightrun/breakpoints_manager.py
   INFO capture_collector.py -> build/lightrun/capture_collector.py
   INFO connection_manager.py -> build/lightrun/connection_manager.py
   INFO data_visibility_manager.py -> build/lightrun/data_visibility_manager.py
   INFO decorators.py -> build/lightrun/decorators.py
   INFO environment_metadata.py -> build/lightrun/environment_metadata.py
   INFO hub_client.py -> build/lightrun/hub_client.py
   INFO imphook.py -> build/lightrun/imphook.py
   INFO lightrun_config.py -> build/lightrun/lightrun_config.py
   INFO lightrun_native.py -> build/lightrun/lightrun_native.py
   INFO log_collector.py -> build/lightrun/log_collector.py
   INFO log_colored_format.py -> build/lightrun/log_colored_format.py
   INFO messages.py -> build/lightrun/messages.py
   INFO module_explorer.py -> build/lightrun/module_explorer.py
   INFO module_search.py -> build/lightrun/module_search.py
   INFO module_utils.py -> build/lightrun/module_utils.py
   INFO piping_manager.py -> build/lightrun/piping_manager.py
   INFO python_breakpoint.py -> build/lightrun/python_breakpoint.py
   INFO utils.py -> build/lightrun/utils.py
   INFO version_retriever.py -> build/lightrun/version_retriever.py
   INFO Obfuscate 24 scripts OK.

Python 3.10.1 (main, Sep 19 2022, 09:25:13) [GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

import lightrun
XXX lineno: 29, opcode: 188
Traceback (most recent call last):
File "", line 1, in
File "</home/user/.pyenv/versions/3.10.1/lib/python3.10/site-packages/lightrun/init.py>", line 3, in
File "", line 29, in
SystemError: unknown opcode

2. pyarmor obfuscate --src lightrun --output build/lightrun --bootstrap 2 --platform musl.x86_64.0 init.py main.py
   INFO PyArmor Version 7.6.1
   INFO Python 3.10.1
   INFO Target platforms: ['musl.x86_64.0']
   INFO Update target platforms to: ['musl.x86_64.0']
   INFO Source path is "/usr/src/lightrun/python_agent/src/lightrun"
   INFO Entry scripts are ['lightrun/init.py', 'lightrun/main.py']
   INFO Use cached capsule /home/user/.pyarmor/.pyarmor_capsule.zip
   INFO Search scripts mode: Normal
   INFO Save obfuscated scripts to "build/lightrun"
   INFO Read product key from capsule
   INFO Obfuscate module mode is 2
   INFO Obfuscate code mode is 1
   INFO Obfuscate string value is False
   INFO Wrap mode is 1
   INFO Restrict mode is 1
   INFO Advanced value is 0
   INFO Super mode is False
   INFO Super plus mode is not enabled
   INFO Generating runtime files to build/lightrun/pytransform
   INFO Extract pytransform.key
   INFO Read default license from capsule
   INFO Copying /home/user/.pyarmor/platforms/musl/x86_64/0/_pytransform.so
   INFO Patch library build/lightrun/pytransform/_pytransform.so
   INFO Patch library file OK
   INFO Copying /home/user/.pyenv/versions/3.10.1/lib/python3.10/site-packages/pyarmor/pytransform.py
   INFO Rename it to pytransform/init.py
   INFO Generate runtime files OK
   INFO Start obfuscating the scripts...
   INFO init.py -> build/lightrun/init.py
   INFO Insert bootstrap code to entry script build/lightrun/init.py
   INFO main.py -> build/lightrun/main.py
   INFO Patch this entry script with protection code
   INFO Insert bootstrap code to entry script build/lightrun/main.py
   INFO appengine_pretty_printers.py -> build/lightrun/appengine_pretty_printers.py
   INFO backoff.py -> build/lightrun/backoff.py
   INFO breakpoints_manager.py -> build/lightrun/breakpoints_manager.py
   INFO capture_collector.py -> build/lightrun/capture_collector.py
   INFO connection_manager.py -> build/lightrun/connection_manager.py
   INFO data_visibility_manager.py -> build/lightrun/data_visibility_manager.py
   INFO decorators.py -> build/lightrun/decorators.py
   INFO environment_metadata.py -> build/lightrun/environment_metadata.py
   INFO hub_client.py -> build/lightrun/hub_client.py
   INFO imphook.py -> build/lightrun/imphook.py
   INFO lightrun_config.py -> build/lightrun/lightrun_config.py
   INFO lightrun_native.py -> build/lightrun/lightrun_native.py
   INFO log_collector.py -> build/lightrun/log_collector.py
   INFO log_colored_format.py -> build/lightrun/log_colored_format.py
   INFO messages.py -> build/lightrun/messages.py
   INFO module_explorer.py -> build/lightrun/module_explorer.py
   INFO module_search.py -> build/lightrun/module_search.py
   INFO module_utils.py -> build/lightrun/module_utils.py
   INFO piping_manager.py -> build/lightrun/piping_manager.py
   INFO python_breakpoint.py -> build/lightrun/python_breakpoint.py
   INFO utils.py -> build/lightrun/utils.py
   INFO version_retriever.py -> build/lightrun/version_retriever.py
   INFO Obfuscate 24 scripts OK.

Python 3.10.1 (main, Sep 19 2022, 09:25:13) [GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.

import lightrun
Traceback (most recent call last):
File "", line 1, in
File "</home/user/.pyenv/versions/3.10.1/lib/python3.10/site-packages/lightrun/init.py>", line 3, in
RuntimeError: Marshal loads failed

3. pyarmor obfuscate --src lightrun --output build/lightrun --bootstrap 2 --platform musl.x86_64.7 init.py main.py
   INFO PyArmor Version 7.6.1
   INFO Python 3.10.1
   INFO Target platforms: ['musl.x86_64.7']
   INFO Update target platforms to: ['musl.x86_64.7']
   INFO ====================================================
   INFO Reload PyArmor with platform: linux.x86_64.7
   INFO ====================================================
   INFO PYARMOR_PLATFORM is linux.x86_64.7
   INFO Search library for platform: linux.x86_64.7
   INFO Found available libraries: ['linux.x86_64.7']
   INFO Target path for linux.x86_64.7: /home/user/.pyarmor/platforms/linux/x86_64/7
   INFO Downloading library file for linux.x86_64.7 ...
   INFO Getting remote file: https://pyarmor.dashingsoft.com/files/r51.5/linux_x86_64/_pytransform.so
   INFO Writing target file: /home/user/.pyarmor/platforms/linux/x86_64/7/_pytransform.so
   INFO Download dynamic library linux.x86_64.7 OK
   ERROR Error relocating /home/user/.pyarmor/platforms/linux/x86_64/7/_pytransform.so: __snprintf_chk: symbol not found

[jondy]

RuntimeError: Marshal loads failed

Generally it means that python version of running obfuscated script is different from the python version of building obfuscated script.

[dvkovner]

I've just checked it once again. In both cases the version of the Python is the same - 3.10.1. I run both commands in the same Docker container and under the same pyenv.

[jondy]

In second test

2. pyarmor obfuscate --src lightrun --output build/lightrun --bootstrap 2 --platform musl.x86_64.0 init.py main.py

Try to use feature 0 to build the obfuscated scripts. For example, if build machine is linux,

pyarmor --boot linux.x86_64.0 --src lightrun --output build/lightrun --bootstrap 2 --platform musl.x86_64.0 init.py main.py

Refer to
https://pyarmor.readthedocs.io/en/latest/advanced.html#obfuscating-scripts-with-different-features
https://pyarmor.readthedocs.io/en/latest/platforms.html#features

[dvkovner]

@jondy Thanks for your help. It helped me to find the right solution. Needed to substitute multiple *.so files.