DOCSLIB.ORG

Smack Labeled

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Smack Labeled SP Project 2 Basic SMACK features 1 Tizen project flow Tizen dev. environment Project 0 build Tizen Porting to Odroid-U3 Tizen application Project 2 development Basic SMACK Project 1 features Tizen web application Tizen development security Project 3 : SMACK SMACK security rule modify Tizen platform Project 4 development New SMACK rules Linux kernel development 2 Tizen Security Model . Non-root applications • All applications run under same non-root user ID . Application sandboxing • All applications are sandboxed by Smack . Resource access control • Important system objects are Smack labeled . Least privilege • All applications will have manifest file describing permissions 3 Tizen Security Model . Mandatory access control powered by Smack • Each application is Smack labeled and has proper Smack rules − Assigned and maintained by manifest file from each package • Application based sandboxing − Each application is able to write to home directory only . SMACK (Simple Mandatory Access Control Kernel) • Upstream Linux Security Module • Simple {subject, object, permission} access control model 4 SMACK . Units SMACK • Subject, Object, Access permission • Subject: processes • Object: processes, files . Rules SMACK • SMACK rule files in /opt/etc/smack/ • Rule format (subject) (object) (access permission) When (subject) accesses (object), access between them follows (access permission) E.g.: When (process) accesses (file), read only is permitted reference site #1 reference site #2 5 SMACK Application Web Application Native Application Web Framework Native Framework W3C/HTML5 Device APIs Social/Content Locations Uix Media Web/Xml Video Touch BT Call CSS3 WebGL LBS NFC Net/Telephony/Messaging Graphics/UI … … Worker Msg Web Runtime Base/IO/Text/Locales App/Security/System Services Core Framework Core Application Application Graphics & UI Multimedia Web Messaging Location Framework Security System Base Connectivity Telephony PIM Kernel SMACK is here Linux Kernel & device drivers 6 SMACK’s normal behavior Basic behavior (app_label) (file_label) (access_permission) org.tizen.image-viewer * arwxt the application has all the access permission to Exception the file in SDcard Change the label of the file into a strange label Exception handling behavior smack detect (app_label) (file_label) (access_permission) org.tizen.image-viewer virus ----- application lose all access permission to the strange labeled file 7 Process SMACK Labels . Reference • Kernel document − linux3.10/Documentation/security/Smack.txt . id command with option “-Z” • Will show your process Smack label . ps command with option “-Z” • Will show SMACK labels of processes 8 Changing Your (user) SMACK Label . All processes run with a Smack label . A privileged process can change its Smack label • By writing the new label into a special file in the proc filesystem • E.g.) echo [new label] > /proc/self/attr/current 9 Changing SMACK Label of a Process . chsmack • Display Smack extended attribute values − ex) # chsmack [program_path] tizen application path • Set Smack extended attribute values − ex) # chsmack –e [Smack label] [program_path] 10 Changing SMACK Labels of Files . chsmack • Display Smack extended attribute values − ex) # chsmack [file_path] • Set Smack extended attribute values − ex) # chsmack –a [Smack label] [file_path] 11 Checking Smack Labels on Files Smack is not working properly (We might not see “sp_smack”) We need to troubleshoot! (kernel patch) 12 Kernel patch Linux kernel Linux kernel ( original ) Patch ( patched ) Patch file kernel.org 13 Kernel patch . How to generate patch file 1 2 3 1. Copy program program.orig 2. Modify 3. Diff program Patch file 14 Kernel patch . Patch file Source , Destination (-) : to be removed (+): to be added 15 Kernel patch . Patch file Source , Destination (-) : to be removed (+): to be added 16 Kernel patch . Patch file Source , Destination (-) : to be removed (+): to be added 17 Kernel patch . How to apply a patch program.orig Patch Patch file program.orig 18 SMACK source patch in kernel . Not working in Tizen 2.2 • Caused by different version between platform and kernel tizen 2.2(reference) tizen 3.0(reference) tizen 2.2(ported) platform platform platform tizen 2.2 SMACK src tizen 3.0 SMACK src tizen 2.2 SMACK src kernel 3.0v kernel 3.10v kernel 3.10v tizentizen2.22.2 SMACKsmack srcsrc tizen 3.0 SMACK src tizen 3.0 SMACK src ref hardware src ref hardware src U3 hardware src 19 SMACK source patch in kernel . Solution • Change kernel SMACK source version 3.0 to 2.2 (Project 02) tizen 2.2(reference) tizen 3.0(reference) tizen 2.2(ported) platform platform platform tizen 2.2 SMACK src tizen 3.0 SMACK src tizen 2.2 SMACK src kernel 3.0v kernel 3.10v kernel 3.10v tizentizen2.22.2 SMACKsmack srcsrc tizen 3.0 SMACK src tizen 2.2 SMACK src ref hardware src ref hardware src U3 hardware src 20 SMACK source patch in kernel . SMACK source path • linux3.10/security/smack/ . Change kernel SMACK source version 3.0 to 2.2 • Compile error occurs after copy • Solutions − include additional header file − modify and add operation struct entry − modify functions 21 SMACK source patch in kernel . Include additional header file − linux/msg.h − linux/shm.h − linux/binfmts.h . Modify smack_ops operation struct entry .file_mmap = smack_file_mmap, => .mmap_file = smack_mmap_file, .dentry_open = smack_dentry_open => .file_open = smack_file_open, . Add smack_ops operation struct entry .mmap_addr = cap_mmap_addr, . Modify function • see patch file(download) 22 SMACK feature verification 23 SMACK feature verification 24 SMACK feature verification 25 SMACK feature verification 26 SMACK feature verification 27 SMACK feature verification 28 SMACK feature verification 29 SMACK feature verification 30 SMACK feature verification 31 SMACK feature verification 32 SMACK feature verification 33 Tip . Tizen Screen Capture $ sdb shell $ xwd -root -out /tmp/screen.xwd $ exit $ sdb pull /tmp/screen.xwd $ convert screen.xwd 0.png . Using source analysis tool • vim plugin • ctag • cscope 34 Tip . Tizen application execute • /usr/apps/org.tizen.[appname]/bin/executable_file − E.g.) /usr/apps/org.tizen.gallery/bin/gallery . Tizen application termination • ps –ef • kill -9 [application pid] 35 References . Tizen Wiki, Security: Smack • https://wiki.tizen.org/wiki/Security:Smack . Kernel Documentation • https://www.kernel.org/doc/Documentation/security/Smack.txt 36.
Load more

Recommended publications
  • Tizen IVI “From Scratch” Customizing, Building and Testing
    Tizen IVI “from scratch” Customizing, building and testing Stéphane Desneux Senior Software Engineer Eurogiciel <[email protected]> Eurogiciel ● Open source development and integration: ● Maintainers in multiple domains on tizen.org ● Embedded systems for real-time multimedia: ▪ Widi/Miracast stack ▪ Wayland/Weston ▪ Webkit2 browser with HW acceleration ● Applications: HTML5/CSS3, jquery, jqmobi, Cordova ● Location : Vannes (Brittany), France 14 2 FOSDEM' Automotive devroom – Tizen “from scratch” : customize, build, test ! Agenda ● Tizen & Tizen:IVI : short introduction ● From source code to target devices ● Customize ● Build ● Flash, Run, Test ! 14 3 FOSDEM' Automotive devroom – Tizen “from scratch” : customize, build, test ! Tizen: a short introduction Definition ● Open source project ● Hosted at the Linux Foundation ● Innovative Web-based platform for multiple devices ● Sponsored by worldwide companies ● Samsung & Intel are two big contributors ● Built on industry standards: ● GNU/Linux kernel, GNU libc ● POSIX ● W3C ● Many upstream Open Source projects 14 5 FOSDEM' Automotive devroom – Tizen “from scratch” : customize, build, test ! Tizen Profiles ● Multiple vertical profiles (derived from Tizen:Generic) ● IVI ● Mobile ● Future: other devices (TV, ...) ● Each profile adds its own enhancements ● Tizen packaging format: RPM 14 6 FOSDEM' Automotive devroom – Tizen “from scratch” : customize, build, test ! From source code … … to target devices 1: Source code GIT Repositories Remote Local Clone source repo Developers
    [Show full text]
  • Long Comment Regarding a Proposed Exemption Under 17 U.S.C. 1201 for Software Freedom Conservancy Proposed Class: 20 – Smart T
    Long Comment Regarding a Proposed Exemption Under 17 U.S.C. 1201 For Software Freedom Conservancy Proposed Class: 20 – Smart TVs No multimedia evidence is being provided in connection with this comment Item 1. Commenter Information The Petition submitter is Software Freedom Conservancy (“Conservancy”), a 501(c)(3) not-for-profit organization that helps promote, improve, develop, and defend Free, Libre, and Open Source Software (“FLOSS”)—software developed by volunteer communities and licensed for the benefit of everyone. Conservancy is the nonprofit home for dozens of FLOSS projects representing well over a thousand volunteer contributors. Conservancy's communities maintain some of the most fundamental utilities in computing today, and introduce innovations that will shape how software will be created in the future. Among the projects for which Conservancy provides logistical, administrative, and legal support are BusyBox and Samba, both of which are commonly installed on “smart” or computer- embedded consumer electronics devices. BusyBox provides a number of key system utilities that enable such devices to run applications, interact with files, access network services, and more.1 It is also used by community projects focused on unlocking and improving Samsung-2 and LG- manufactured Smart TVs.3 Samba permits devices to interact with files stored on other networked devices.4 Conservancy also represents the interests of several contributors to the Linux kernel, the core component of the operating system of most Smart TVs. Conservancy may be contacted through its authorized representatives and pro bono counsel at Tor Ekeland, P.C., 195 Plymouth Street, Brooklyn, New York 11201: Aaron Williamson Frederic Jennings (718) 285-9349 (718) 514-2075 [email protected] [email protected] Item 2.
    [Show full text]
  • Tizen Based Remote Controller CAR Using Raspberry Pi2
    #ELC2016 Tizen based remote controller CAR using raspberry pi2 Pintu Kumar ([email protected], [email protected]) Samsung Research India – Bangalore : Tizen Kernel/BSP Team Embedded Linux Conference – 06th April/2016 1 CONTENT #ELC2016 • INTRODUCTION • RASPBERRY PI2 OVERVIEW • TIZEN OVERVIEW • HARDWARE & SOFTWARE REQUIREMENTS • SOFTWARE CUSTOMIZATION • SOFTWARE SETUP & INTERFACING • HARDWARE INTERFACING & CONNECTIONS • ROBOT CONTROL MECHANISM • SOME RESULTS • CONCLUSION • REFERENCES Embedded Linux Conference – 06th April/2016 2 INTRODUCTION #ELC2016 • This talk is about designing a remote controller robot (toy car) using the raspberry pi2 hardware, pi2 Linux Kernel and Tizen OS as platform. • In this presentation, first we will see how to replace and boot Tizen OS on Raspberry Pi using the pre-built Tizen images. Then we will see how to setup Bluetooth, Wi-Fi on Tizen and finally see how to control a robot remotely using Tizen smart phone application. Embedded Linux Conference – 06th April/2016 3 RASPBERRY PI2 - OVERVIEW #ELC2016 1 GB RAM Embedded Linux Conference – 06th April/2016 4 Raspberry PI2 Features #ELC2016 • Broadcom BCM2836 900MHz Quad Core ARM Cortex-A7 CPU • 1GB RAM • 4 USB ports • 40 GPIO pins • Full HDMI port • Ethernet port • Combined 3.5mm audio jack and composite video • Camera interface (CSI) • Display interface (DSI) • Micro SD card slot • Video Core IV 3D graphics core Embedded Linux Conference – 06th April/2016 5 PI2 GPIO Pins #ELC2016 Embedded Linux Conference – 06th April/2016 6 TIZEN OVERVIEW #ELC2016 Embedded Linux Conference – 06th April/2016 7 TIZEN Profiles #ELC2016 Mobile Wearable IVI TV TIZEN Camera PC/Tablet Printer Common Next?? • TIZEN is the OS of everything.
    [Show full text]
  • Hardening Linux Processes Extending Grsecurity to Integrate System Call Filters and Namespaces
    Universidad de Los Andes Tesis de Maestr´ıa Hardening Linux Processes Extending Grsecurity to Integrate System Call Filters and Namespaces David Derby Cardona Facultad de Ingenier´ıa Departamento de Ingenier´ıade Sistemas y Computaci´on June 2016 Universidad de Los Andes Tesis de Maestr´ıa Hardening Linux Processes Extending Grsecurity to Integrate System Call Filters and Namespaces David Derby Cardona Asesor: Sandra Rueda Rodr´ıguez Jurados: Rafael G´omezD´ıaz Fabian Molina Molina Facultad de Ingenier´ıa Departamento de Ingenier´ıade Sistemas y Computaci´on June 2016 Abstract The area of Linux sandboxing has seen various developments in recent years with the intro- duction of operating system containers and the ever present need to harden the security of applications. Two of the more prominent technologies that have been used when creating sandboxes are namespaces and system call filters. Whilst these technologies have been ef- fective for creating sandboxes, they are limited in that they require a developer to integrate them into their software. This work proposes to use these two technologies to enforce the Principle of Least Privilege on every process on a system. The solution extends a grsecurity hardened Linux kernel and allows the user to define security policies for each process which permit them to behave as intended. The presented results demonstrate the effectiveness of the extended Linux kernel and its impact on performance. The results provide a basis that may be built upon to deliver a comprehensive solution that would be appealing for use in real world environments. 1 Contents Abstract 1 Index of Figures 4 Index of Tables 5 1 Introduction 1 2 Context and Problem Description 3 2.1 Linux .
    [Show full text]
  • Unbreakable Enterprise Kernel Release Notes for Unbreakable Enterprise Kernel Release 3
    Unbreakable Enterprise Kernel Release Notes for Unbreakable Enterprise Kernel Release 3 E48380-10 June 2020 Oracle Legal Notices Copyright © 2013, 2020, Oracle and/or its affiliates. This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in any form, or by any means. Reverse engineering, disassembly, or decompilation of this software, unless required by law for interoperability, is prohibited. The information contained herein is subject to change without notice and is not warranted to be error-free. If you find any errors, please report them to us in writing. If this is software or related documentation that is delivered to the U.S. Government or anyone licensing it on behalf of the U.S. Government, then the following notice is applicable: U.S. GOVERNMENT END USERS: Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs) and Oracle computer documentation or other Oracle data delivered to or accessed by U.S. Government end users are "commercial computer software" or "commercial computer software documentation" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. As such, the use, reproduction, duplication, release, display, disclosure, modification, preparation of derivative works, and/or adaptation of i) Oracle programs (including any operating system, integrated software, any programs embedded, installed or activated on delivered hardware, and modifications of such programs), ii) Oracle computer documentation and/or iii) other Oracle data, is subject to the rights and limitations specified in the license contained in the applicable contract.
    [Show full text]
  • About Security Solutions in Fog Computing
    “Ovidius” University Annals, Economic Sciences Series Volume XVI, Issue 1/2016 About Security Solutions in Fog Computing Eugen Petac Faculty of Mathematics and Computer Science “Ovidius” University of Constanța, Romania [email protected] Andreea-Oana Petac Faculty of Mathematics and Computer Science “Ovidius” University of Constanța, Romania [email protected] Abstract The key for improving a system's performance, its security and reliability is to have the data processed locally in remote data centers. Fog computing extends cloud computing through its services to devices and users at the edge of the network. Through this paper it is explored the fog computing environment. Security issues in this area are also described. Fog computing provides the improved quality of services to the user by complementing shortages of cloud in IoT (Internet of Things) environment. Our proposal, named Adaptive Fog Computing Node Security Profile (AFCNSP), which is based security Linux solutions, will get an improved security of fog node with rich feature sets. Key words: Fog Computing, IoT, Fog Computing Security J.E.L. classification: L8, M1, M3 1. Introduction Fog computing is a modern computing paradigm, representing distributed computing services, applications, access to pieces of information and various storage data, the user not needing to know the physical configurations for the systems that provide these services. This new technology is based on the tendency of cutting out the costs of the delivery services and increasing the dexterity of the deployment of the services. Utilizing this distributed computing concept, the services can be hosted at end devices (e.g. access points), creating an automated response that drives the value.
    [Show full text]
  • Linux, Yocto and Fpgas
    Embedded Open Source Experts Linux, Yocto and FPGAs Integrating Linux and Yocto builds into different SoCs From a Linux software perspective: ➤ Increased demand for Linux on FPGAs ➤ Many things to mange, both technical and practical ➤ FPGAs with integrated CPU cores – very similar many other SoCs Here are some experiences and observations... © Codiax 2019 ● Page 2 Why use Linux? ➤ De-facto standard ➤ Huge HW support ➤ FOSS ➤ Flexible ➤ Adaptable ➤ Stable ➤ Scalable ➤ Royalty free ➤ Vendor independent ➤ Large community ➤ Long lifetime Why not Linux? ➤ Too big ➤ Real-time requirements ➤ Certification ➤ Boot time ➤ Licensing ➤ Too open? Desktop Shells: Desktop Display server: Display BrailleDisplay Touch-Screen Mouse & Keyboard Wayland Compositor Wayland + development tools = a lot code!of source Linux system example weston, clayton,mutter,KWin evdev libinput GNOME Shell D radeon nouveau lima etna_viv freedreno tegra-re lima nouveau radeon freedreno etna_viv e libwayland-server libwayland-server s Cinnamon k t o kms p Linux kernel, Linux kernel, Plasma 2 w i (Kernel Mode Setting) Mode (Kernel d g Cairo-Dock e t s drm (Direct Rendering Manager) Rendering (Direct drm cache coherent L2-Caches L2-Caches cache coherent CPU &GPU Enlight. DR19 System libraries: System oflibraries): form (in the Toolkits Interface User µClibc Pango glibc glibc main memory possibly adaptations to Wayland/Mir libwayland / COGL libwayland Cairo Cairo (Xr) GTK+ Clutter 2D Application 2D GModule GThread GThread GLib GObject Glib GIO ATK devicedrivers other& modules System
    [Show full text]
  • Daemon Management Under Systemd ZBIGNIEWSYSADMIN JĘDRZEJEWSKI-SZMEK and JÓHANN B
    Daemon Management Under Systemd ZBIGNIEWSYSADMIN JĘDRZEJEWSKI-SZMEK AND JÓHANN B. GUÐMUNDSSON Zbigniew Jędrzejewski-Szmek he systemd project is the basic user-space building block used to works in a mixed experimental- construct a modern Linux OS. The main daemon, systemd, is the first computational neuroscience lab process started by the kernel, and it brings up the system and acts as and writes stochastic simulators T and programs for the analysis a service manager. This article shows how to start a daemon under systemd, of experimental data. In his free time he works describes the supervision and management capabilities that systemd pro- on systemd and the Fedora Linux distribution. vides, and shows how they can be applied to turn a simple application into [email protected] a robust and secure daemon. It is a common misconception that systemd is somehow limited to desktop distributions. This is hardly true; similarly to Jóhann B. Guðmundsson, the Linux kernel, systemd supports and is used on servers and desktops, but Penguin Farmer, IT Fireman, Archer, Enduro Rider, Viking- it is also in the cloud and extends all the way down to embedded devices. In Reenactor, and general general it tries to be as portable as the kernel. It is now the default on new insignificant being in an installations in Debian, Ubuntu, Fedora/RHEL/CentOS, OpenSUSE/SUSE, insignificant world, living in the middle of the Arch, Tizen, and various derivatives. North Atlantic on an erupting rock on top of the world who has done a thing or two in Systemd refers both to the system manager and to the project as a whole.
    [Show full text]
  • Tizen Overview & Architecture
    Tizen Overview & Architecture 삼성전자 정진민 There are many smart devices in mobile market. 2 And, almost as many software platforms for them 3 Many smart devices also appear in non-mobile market 4 User Expectation by it • Before smart device, • The user knew that they were different. • Therefore, the user did not expect anything among them. • Now, • The user is expecting anything among them. • However, They provide different applications and user experiences • Disappointed about inconvenient and incomplete continuation between them. 1 Due to different and proprietary software platform Proprietary platforms 5 Why do they? • Why could not manufacturers provide the same platform for their devices? • The platform has been designed for a specific embedded device. • Manufacturers do not want to share their proprietary platforms. • There is no software platform considering cross category devices as well as fully Open Source. Proprietary platforms 6 What if there is.. • What if there is a standard-based, cross category platform? • The same software can run on many categories of devices with few or no changes • Devices can be connected more easily and provide better convergence services to users • What if the platform is Open Source? • Manufacturers can deploy the platform on their products easily • New features/services can be added without breaking [given the software complies to platform standards] 7 The platform having these two features is ü Standard-based, Cross Category Platform ü Fully Open Source Platform 8 Standard-based, cross category platform
    [Show full text]
  • The Simplified Mandatory Access Control Kernel
    The Simplified Mandatory Access Control Kernel Casey Schaufler [email protected] Mandatory Access Control Computer systems employ a variety of schemes to constrain how information is shared among the people and services using the machine. Some of these schemes allow the program or user to decide what other programs or users are allowed access to pieces of data. These schemes are called discretionary access control mechanisms because the access control is specified at the discretion of the user. Other schemes do not leave the decision regarding what a user or program can access up to users or programs. These schemes are called mandatory access control mechanisms because you don’t have a choice regarding the users or programs that have access to pieces of data. Bell & LaPadula From the middle of the 1980’s until the turn of the century Mandatory Access Control (MAC) was very closely associated with the Bell & LaPadula security model, a mathematical description of the United States Department of Defense policy for marking paper documents. MAC in this form enjoyed a following within the Capital Beltway and Scandinavian supercomputer centers but was often sited as failing to address general needs. Domain Type Enforcement Around the turn of the century Domain Type Enforcement (DTE) became popular. This scheme organizes users, programs, and data into domains that are protected from each other. This scheme has been widely deployed as a component of popular Linux distributions. The administrative overhead required to maintain this scheme and the detailed understanding of the whole system necessary to provide a secure domain mapping leads to the scheme being disabled or used in limited ways in the majority of cases.
    [Show full text]
  • Leveraging Docker in Automotive Projects Based on AGL/GENIVI
    Leveraging Docker in Automotive projects based on AGL/GENIVI Stéphane Desneux CTO at IoT.bzh <[email protected]> IoT.bzh ● Specialized on Embedded & IoT ● Contributing to AGL Project for Renesas ● Expertise domains: ± System architecture ± Security ± Application Framework ± Graphics & Multimedia ± Middleware ± Linux Kernel ● Located in Brittany, France Jan 30, 2016 2 Agenda ● Light virtualization ● Containers for BSP builds ● Containers for Applications SDK ● Containers for CI & LTS ● Demo: AGL SDK for Renesas Porter board ● Limitations & Future enhancements ● Q&A Jan 30, 2016 3 Light Virtualization [LV] Jan 30, 2016 4 Light Virtualization ● Opposed to “Full Virtualization” which emulates a full machine (hardware + OS) ● A light virtual machine is also called a “container”: this is a kind of chroot(2)with some extra features ● A container runs its own processes based on its own binaries and libraries. But it relies on the Linux Kernel running on the host machine. ● Uses Linux namespaces to isolate the virtual system from the host system see unshare(2) Jan 30, 2016 5 LV: what's hype ? Some software related to LV: ● Docker ● Rocket (CoreOS) ● Open Container Initiative ● OpenVZ ● LXC / LXD (Ubuntu) Jan 30, 2016 6 LV: historical usages ● Historically used for easy deployment of Cloud services ± very fast startup (compared to full virtualization) ± low overhead (less memory used, less storage) ± better load balancing ± optimized hardware resources usage ● Some security models also use containers to provide isolation for multiple resources (filesystem,
    [Show full text]
  • Symbooglix: a Symbolic Execution Engine for Boogie Programs
    Symbooglix: A Symbolic Execution Engine for Boogie Programs Daniel Liew Cristian Cadar Alastair F. Donaldson Imperial College London United Kingdom {daniel.liew, c.cadar, alastair.donaldson}@imperial.ac.uk Abstract—We present the design and implementation of Sym- Boogie verifier back-end [20], but recently the IVL has also booglix, a symbolic execution engine for the Boogie intermediate been used for bug-finding (e.g. Boogaloo [49] and Corral [41]). verification language. Symbooglix aims to find bugs in Boogie Corral recently replaced the SLAM tool [18] as the engine that programs efficiently, providing bug-finding capabilities for any program analysis framework that uses Boogie as a target powers Microsoft’s Static Driver Verifier [40]. language. We discuss the technical challenges associated with Recently there has been growing interest in the use of handling Boogie, and describe how we optimised Symbooglix symbolic execution for testing code written in production using a small training set of benchmarks. This empirically- languages such as C [25], [36] and Java [16]. In contrast, driven optimisation approach avoids over-fitting Symbooglix to few attempts to apply symbolic execution in the context of our benchmarks, enabling a fair comparison with other tools. We present an evaluation across 3749 Boogie programs generated IVLs have been reported [43], [49]. Having a flexible symbolic from the SV-COMP suite of C programs using the SMACK front- execution engine for a popular IVL such as Boogie would end, and 579 Boogie programs originating from several OpenCL provide symbolic testing capabilities for any input language and CUDA GPU benchmark suites, translated by the GPUVerify for which there is an IVL front-end.
    [Show full text]