| :warning: Important note |
|---|
| Master branch is compatible only with latest work for upstream kernel integration. See patchsets for linux kernel in directory patches or in Linux kernel fork branches. |
| :information_source: standalone blksnap module |
| The standalone blksnap kernel module, which is included in the Veeam Agent for Linux product, is available in branches, whose names correspond to the product version. For example, the VAL-6.0 branch is used to build packages for Veeam Agent for Linux 6.0. It is recommended to use the latest branch, the name of which corresponds to the current latest release of Veeam Agent for Linux. It is likely to support the latest version of the Linux kernel and implement fixes and improvements. You can use it according to its license. |
| :information_source: to Veeam Agent for Linux users: |
| If you have any questions when using Veeam Software products, please contact the official support service. Use the product components received from official Veeam Software representatives in accordance with the user guide. |
Kernel module is GPL-2 only, tools and tests are GPL-2+, library and include are LGPL-3+.
Copyright (C) 2022 Veeam Software Group GmbH
This project use SPDX License Identifier in source files header.
For details about the work in progress for integration in upstream kernel see the specific README
The blksnap tools allows you to manage the module from the command line. The program allows for execution of individual ioctls of the blksnap module. The interface of the program may seem inconvenient to the user, since it is assumed that it will be called by other applications.
See how to build library, tools and tests
The dynamic C library is not needed to work with blksnap. File ./include/blksnap/blksnap.h contains everything you need to work with blksnap. But to demonstrate how to call the ioctl, a static c++ library was created. The library can also help you quickly create a working prototype. In the project, the library is used for tests.
See how to build library, tools and tests
The test scripts are written in bash and use the blksnap tool to control the blksnap module. The test scripts allow to check the main functions of the module. To implement complex test algorithms, С++ tests are implemented. C++ tests use the static library libblksnap.a and it must be compiled to build С++ tests.
See how to build library, tools and tests
# change working directory to the tests one, for example for debian package is /opt/blksnap/tests
cd /opt/blksnap/tests
# execute all tests script
sudo ./all.sh
# or for logging the output to a file
sudo ./all.sh 2>&1 | tee -a /tmp/blksnap_test_$(date -u '+%Y-%m-%d_%H-%M-%S').logInstalling the necessary deb packages.
sudo apt install g++ cmake uuid-dev libboost-program-options-dev libboost-filesystem-dev libssl-devOr installing the necessary rpm packages.
sudo yum install g++ cmake libuuid-devel boost-static libstdc++-static openssl-staticBuild.
cmake .
makeInstall (but it is recommended to use packages instead, for example the debian ones)
sudo make installUninstall (if needed)
sudo make uninstallsudo apt install g++ cmake uuid-dev libboost-program-options-dev libboost-filesystem-dev libssl-dev debhelper
cd ./pkg/deb
./build-blksnap.sh ${VERSION}