Semi-Sandboxed Embedded Services Without Container Runtime Overhead
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Solution Overview
Problem
Existing technologies face challenges in developing and maintaining applications for embedded devices, particularly BMCs, due to the tension between cost-efficient, minimally-provisioned functionality and the need for robust frameworks and tools, while conventional container solutions incur substantial overhead and lack modularity.
Innovation Solution
The implementation of semi-sandboxed execution environments (SSEEs) that leverage native sandboxing functionality of software package management utilities, such as Flatpak, to create partially-sandboxed execution environments without intermediate runtimes, allowing for modular and isolated application execution with reduced overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional container solutions are used, then application isolation and modularity are achieved, but substantial runtime overhead is incurred
Solution Approach 1:
The patent extracts the essential sandboxing functionality from full container solutions and implements it directly within the package management utility itself. By taking out only the necessary sandboxing capabilities and eliminating the intermediate runtime layer, the system achieves application isolation without the substantial overhead associated with conventional container runtimes.
Solution Approach 2:
The patent eliminates the intermediate runtime that typically sits between the package manager and applications in conventional container solutions. By removing this intermediary layer, the system reduces runtime overhead while maintaining the isolation and modularity benefits through direct integration within the package management framework.
2Adaptability or versatility
If fully modular and isolated containers are used, then application independence is improved, but system complexity and overhead increase
Solution Approach 1:
The patent merges the containerization functionality directly into the package management utility, eliminating the need for separate container runtimes and intermediate layers. This integration achieves application independence and modularity while reducing system complexity by consolidating multiple components into a single unified system.
3Ease of manufacture
If minimally-provisioned hardware is used, then cost efficiency is improved, but framework and tool support for application development is reduced
Solution Approach 1:
The patent makes the package management utility universal by enabling it to perform both traditional package management functions and application sandboxing/execution. This multi-functionality allows minimally-provisioned hardware to support both cost efficiency and robust framework support, as the same system components handle multiple tasks without requiring additional specialized hardware or software layers.
Data Source
AI summary
Disclosed subject matter encompasses method operations performed by an embedded device. Exemplary deployments may include a BMC as the embedded device, but the embedded device is expressly not limited to BMCs. Disclosed subject matter enables partially-sandboxed execution environments (SSEEs) with an auditable framework supporting unrestricted or restricted system access via privilege elevation capabilities not generally permitted within conventional container solutions. Functional modularity is implemented without incurring the substantial overhead inherent in fully modular and isolated containers. Disclosed SSEEs require no intermediate runtime or the corresponding overhead. Disclosed subject matter may leverage sandboxing functionality native to at least some software package management utilities (SPMUs) including, as a non-limiting example, a Flatpak utility suitable for use in embodiments employing a Linux OS, to achieve footprint-efficient SSEEs.