The project consists on developing a Linux VFS filesystem module.
The driver has to read a configuration file with the next format:
SourceFolder = /share/NAS/Source
IndexFolder = /share/NAS/Index
DataFile = /share/NAS/Data/[url removed, login to view]
ExcludedProcess = ExcludedProgram
The driver has to intercept all the file system operations over SourceFolder, unless the process who try to access to those files is the excluded process. Every time any other process try to access to a file stored inside the SourceFolder the driver has to do the next actions:
- Read function:
o Check if there is a equivalent file inside the Indexfolder. For example if someone try to read the file “/share/NAS/Source/Folder1/SubFolder1/File2”, check if exists the file “/share/NAS/Index/Folder1/SubFolder1/File2”.
o If the index file exist:
? This index file will contain the offsets where is stored the real content of File2 in the DataFile. The format of the index file is a header and one offset of 64bit for each 16KB.
? The driver has to read the desired buffer from the DataFile based in the index file and return a buffer with the required content.
o If the index file does not exist, return the required content from the source file.
- Write, Delete and Rename functions:
o If the index file exist, block the writing action returning an access denied error.
o If the index file does not exist, let do the writing action.
The code has to be written in C language.
Additionally to the development of the driver, you have to develop a testing tool, a program to test the excluded process and write a document describing in detail how to compile, install and test the project in 32 and 64 bit OS.
You should thoroughly test all the code before delivery and of course, deliver them without compilation errors or warnings.
We will test the program with Ubuntu [url removed, login to view] and we use Eclipse Juno as IDE.
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Bids on this Project
Kaliningrad, Russian Federation
Linux professional with more then ten years of experience in developing network/telecom software including drivers, busybox based OS for embedded devices with web interface.
Development Experiences 1. Windows network programming 2. Windows Services/ System programming 3. Network Protocols Stacks /RFC Implementations 4.Direct3D/Directshow Programing 5. Java Programming 6. Network Protocols /RFC Implementations 7. Windows drivers/ Linux kernel modules Language C++, C++/Cli , C# , Java ,VB6 ,VB.NET ,XML ,ASP.NET
Las Palmas de Gran Canaria, Spain
Consultant with strong experience in Architecture, Design, Development, Debugging and Performance tuning of Mobile, Enterprise, Systems, Networking and Embedded applications
Veltrod Software Services is a global management consulting, technology services and outsourcing company. Leveraging best-in-class people, processes, and technologies, Veltrod provides high-quality, high-value software development and business process outsourcing services to independent software vendors (ISVs) and enterprises. We are specialized in developing Mobile applications (iPhone, iPad, Android, Blackberry), Web designs, Social networking and ERP applications.
San Jose, Costa Rica
Experienced Linux Developer with a strong background in C and Python focusing in projects related to Networking, Protocols, Performance, Android NDK and others.
Software consultant, team leader focused on content management, both in proprietary as in open source flavours. I've been working for the IT industry for more than 15 years, specialized on content management. Now I'm interested on developing social network, mobile applications and Google technologies (GWT, GAE, Google Apps, etc). Areas of Expertise: Web Content Management, Social networks, Google Web Toolkit, Google technologies (Google Apps, Apps Engine), Java, SQL, PHP, AJAX, Web Standardization, System Administration, Content management systems.
Highly experienced server side developer (Linux / C)
We are a team of 8 members. Out of which 5 are professional coders and 3 are good article writer.