Introducing Genode · FOSDEM Feb 4, 2012 2 Overview 1. Why do we need another operating system? 2....
Transcript of Introducing Genode · FOSDEM Feb 4, 2012 2 Overview 1. Why do we need another operating system? 2....
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FOSDEM Feb 4, 2012
IntroducingGenode
Norman FeskeGenode Labs
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FOSDEM Feb 4, 2012 2
Overview
1. Why do we need another operating system?
2. Genode OS architecture at a glance
3. Features of the framework
4. Showcases
5. Plans for 2012
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FOSDEM Feb 4, 2012 3
Genode OS Architecture
Why do we need another
operating system?
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FOSDEM Feb 4, 2012 4
Traditional technology, pimped up
Copyright Tessloff-Verlag / MOSAIK Steinchen für Steinchen Verlaghttp://www.mosapedia.de/wiki/index.php/Zeichnung_vom_Burgenschiff
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FOSDEM Feb 4, 2012 5
Traditional technology, pimped up
Copyright Tessloff-Verlag / MOSAIK Steinchen für Steinchen Verlaghttp://www.mosapedia.de/wiki/index.php/Zeichnung_vom_Burgenschiff
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FOSDEM Feb 4, 2012 6
We are getting there...
Work in progress
Copyright Tessloff-Verlag / MOSAIK Steinchen für Steinchen Verlaghttp://www.mosapedia.de/wiki/index.php/Burgenschiff
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FOSDEM Feb 4, 2012 7
We are getting there...
Security features
Work in progress
Copyright Tessloff-Verlag / MOSAIK Steinchen für Steinchen Verlaghttp://www.mosapedia.de/wiki/index.php/Burgenschiff
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FOSDEM Feb 4, 2012 8
We are getting there...
Security features
Work in progress
Thriving community
Copyright Tessloff-Verlag / MOSAIK Steinchen für Steinchen Verlaghttp://www.mosapedia.de/wiki/index.php/Burgenschiff
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FOSDEM Feb 4, 2012 9
But...
What happens in the event of
• Storm
• Fire
• Leak
• Sabotage
• Directed remote attack
?
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FOSDEM Feb 4, 2012 10
Genode OS architecture - Why?
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FOSDEM Feb 4, 2012 11
Genode OS architecture - Why?
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FOSDEM Feb 4, 2012 12
Bulkhead to the rescue
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FOSDEM Feb 4, 2012 13
Genode OS architecture - Why?
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FOSDEM Feb 4, 2012 14
Genode OS architecture - Why?
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FOSDEM Feb 4, 2012 15
Compromises
Solution is
• Rather inflexible
• Costly (additional material)
• Adding weight (overhead)
• Bureaucratic (additional policy)
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FOSDEM Feb 4, 2012 16
Genode OS architecture
Central question:
How to organize all those components in order to scale?
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FOSDEM Feb 4, 2012 17
Genode OS architecture
Leitmotif:
Minimize trusted computing base (TCB)per application
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FOSDEM Feb 4, 2012 18
Genode OS architecture - Universal truths (?)
Ease of use Security
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FOSDEM Feb 4, 2012 19
Genode OS architecture - Universal truths (??)
Ease of use Security
Resource
utilization
Resource
accountability
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FOSDEM Feb 4, 2012 20
Genode OS architecture - Universal truths (???)
Ease of use Security
Resource
utilization
Resource
accountability
ScalabilitySimplicity
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FOSDEM Feb 4, 2012 21
Genode OS architecture
Genode sets out to solve these conflicts.
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FOSDEM Feb 4, 2012 22
Principles of the architecture
Recursive system structure
GUI
Init
User Session
User Application
Core
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FOSDEM Feb 4, 2012 23
GUI
Init
User Session
User Application
Core
announce("GUI")
Principles of the architecture (II)
Announcing services
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FOSDEM Feb 4, 2012 24
GUI
Init
User Session
User Application
session("GUI", "input:read label:terminal")
session("GUI", "label:olaf.xterm; input:read")session("input:none; label:olaf.xterm")
1
23
4
Core
Principles of the architecture (III)
Using services
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FOSDEM Feb 4, 2012 25
Principles of the architecture (IV)
Core - the root of the process tree
• Provides fundamental services:
RAM, ROM, IRQ, I/O, RM, CPU, PD, CAP, LOG, SIGNAL
• Abstracts physical platform resources
• Policy-free
• Bootstraps the init process
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FOSDEM Feb 4, 2012 26
Principles of the architecture (V)
Physical resources
• Physical resources are assigned to processes
• A client can lend its resources to services
• A server uses client resources by contract
• A client can regain resources
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FOSDEM Feb 4, 2012 27
Principles of the architecture (VI)
Delegation of rights
• Each process lives in a virtual environment
• A process that possesses a right (capability) can
• use it (invoke)
• delegate it
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FOSDEM Feb 4, 2012 28
Demonstration
One demo tells more than thousand slides.
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FOSDEM Feb 4, 2012 29
Framework features
Pick one of 8 different kernels
FIASCO
CODEZERO
NOVAMicrohypervisor
OKL4FIASCO.OC
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FOSDEM Feb 4, 2012 30
Ways for reusing existing software
1. Support for existing APIsPOSIX (FreeBSD libc), libSDL, OpenGL, Qt4
→ enables Freetype, libpng, Python, MuPDF, ...
2. Runtime environmentsLinux / iPXE Device Driver Environment, Noux
3. Virtualization
Paravirtualized Linux (on OKL4, Fiasco.OC)
→ runs unmodified Linux applications Faithful virtualization (Vancouver on NOVA)
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FOSDEM Feb 4, 2012 31
Virtualization-enabled application compatibility
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FOSDEM Feb 4, 2012 32
Expressing policy
Security
• Uniform configuration concept
• Mandatory access control
Real-time
• Assign hard priorities to subsystems
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FOSDEM Feb 4, 2012 33
Application-specific trusted computing base
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FOSDEM Feb 4, 2012 34
Trusted computing base in numbers
Lines of code (OKL4 version)
Demo 3 34,200 Demo 2 + PNG support
Demo 2 20,600 Demo 1 + Liquid-FB, Nitlog, Scout
Demo 1 15,000 PS/2, Timer, Nitpicker, Test Application
Core + Init 10,800
Core 9,400
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FOSDEM Feb 4, 2012 35
Trusted computing base in numbers
Lines of code (OKL4 version)
Demo 3 34,200 Demo 2 + PNG support
Demo 2 20,600 Demo 1 + Liquid-FB, Nitlog, Scout
Demo 1 15,000 PS/2, Timer, Nitpicker, Test Application
Core + Init 10,800
Core 9,400
Demo 4 634,200 Demo 3 + simple Qt4 application
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FOSDEM Feb 4, 2012 36
Components
User-level device drivers
• Platform drivers for x86 and ARM
• USB, PCI, PS/2, timer, framebuffer
• 3D graphics (Intel GEM)
• Audio out (Linux drivers)
• Networking (iPXE drivers, Lan9118, MadWifi)
• Block devices (ATAPI, SATA, SD-card, USB)
Protocol stacks
• GUI, Qt4
• DDE Kit (device driver API)
• TCP/IP (lwIP)
• Mesa/Gallium3D
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FOSDEM Feb 4, 2012 37
Showcase - Secure GUI
User Mode
Privileged ModeMicrokernel
Core
Nitpicker
GUI
Linux
Kernel
VirtualFramebuffer
Tutorial
Browser
X Window System
Init
InputFrame
buffer
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FOSDEM Feb 4, 2012 38
Showcase - Secure browser plugins
Plugin
Loader
Init
Web
Browser
Plugin
Nitpicker
GUI
TCP/IP
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FOSDEM Feb 4, 2012 39
Showcase - Application-level virtualization
Genode Process
CoreRAM RM CPU
Service
session
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FOSDEM Feb 4, 2012 40
Showcase - Application-level virtualization
Genode Processas Debugging Target
CoreRAM RM CPU
Service
session
GDBMonitor
RAM RM CPUTerminalService
GNUDebugger
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FOSDEM Feb 4, 2012 41
Showcase - OS-level virtualization
Noux
libc plugin
FreeBSD libc
Terminal
Recompiled UNIX program
open read writeselect ioctrlstat readdir
VFS
TarFS
Init
ROMsession
I/O channels
Core
Terminalsession
Nouxsession
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FOSDEM Feb 4, 2012 42
Showcase - Enslaving services (I)
Where to boot from?
Init
SATAUSBstorage
ATAPI
???
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FOSDEM Feb 4, 2012 43
Showcase - Enslaving services (II)
Probing for a “magic” file
Init
USBstorage
ATAPI
d3m
iso9660 iso9660
Block ROM BlockROM
open"magic"
open"magic"
"magic"
!
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FOSDEM Feb 4, 2012 44
Showcase - Enslaving services (III)
Announce boot device
d3m
Init
USBstorage
ATAPIiso9660 iso9660
Block ROM BlockROM
open"magic"
open"magic"
"magic"
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FOSDEM Feb 4, 2012 45
Plans for 2012
Eating our own dog food
→ Goal: Genode as our primary OS by end of year
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FOSDEM Feb 4, 2012 46
Inventory of our computing needs
VIM
IM client
Tiled window manager
Fallback VM
PDF viewer
Web browser
GNUPG
Git client
SSH client, Rsync
Persistent storage
Tool chain Shell
Fundamentals
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FOSDEM Feb 4, 2012 47
EMACS
High-performance graphics
Thinkpad ACPI
Tuxpaint
Qemu
Mail-user agent
Additional command-line tools
Intel Wireless
Music player
Nice to have
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FOSDEM Feb 4, 2012 48
Roadmap 2012
July
Storage
Music player
TiledGUI
January
Thinkpadsupport
SMP
website
OfflineUnixtools
December
OnlineUnix tools
Drivers
Live CD
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FOSDEM Feb 4, 2012 49
Questions?
Thank you.
http://genode.org
https://github.com/genodelabs/