MANAGING THE CAR CLOUD CONNECTION.

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1 Daniel Wagner MANAGING THE CAR CLOUD CONNECTION. CONNMAN, SYSTEMD, AND THE INTERNET. BMW Car IT GmbH

2 IVI CONNECTIVITY. GENERAL OVERVIEW. Apps in the car Software and Hardware Setups ConnMan Session API The Future Page 2

3 EXPECTATIONS. Car owners expect their car to be integrated into their digital life. Services via Apps Page 3

4 INTERACTIONS. Knobs Touch Voice Page 4

5 SOFTWARE. PARTITIONING. Head Unit Head Unit Head Unit App App App Smartphone Smartphone Page 5

6 HARDWARE SETUP. STAND ALONE. Cellular Head Unit Page 6

7 HARDWARE SETUP. CONNECTION BOX. Head Unit Cellular Connection Box Page 7

8 HARDWARE SETUP. SMARTPHONE AS UPLINK. Head Unit Bluetooth Smartphone Page 8

9 HARDWARE SETUP. MULTI LINKS. Head Unit Cellular Bluetooth Smartphone Connection Box Page 9

10 HARDWARE SETUP. FULL MONTY. Cellular Head Unit Cellular Smartphone WiFi/Bluetooth Connection Box WiFi Page 10

11 PROTOCOL STACKS. BASED ON IP. WiFi Display Basically it replaces a HDMI-cable a.k.a. Miracast Uses WiFi Direct MirrorLink USB, Wi-Fi, Bluetooth, Real-Time Protocol (RTP, for audio) Universal Plug and Play (UpnP) VNC... Page 11

12 CONNMAN. SESSION API. App 1 App 2 App 3 Notify 1 Notify 2 Notify 3 Session 1 Per Application Configuration Routing Statistic D-Bus Session 2 Session 3 ConnMan Cellular WPA Supplicant BlueZ ofono Linux Kernel Page 12

13 SESSION CONFIGURATION. AllowedBearers (e.g. ethernet, wireless, cellular...) Connection (e.g. local, internet) Priority EmergencyCall RoamingPolicy Page 13

14 SESSION CONFIGURATION. KEEP IT UP TO DATE. Configuration update needed because Roaming policy changes New customer (rental car)... Applications need to be blocked before configuration is updated Page 14

15 CONNMAN. SESSION DYNAMIC CONFIGURATION. App 1 App 2 Notify 1 Notify 2 Session 1 D-Bus Session 2 Session 3 remote ConnMan Notify Cellular WPA Supplicant BlueZ ofono pold Linux Kernel Page 15

16 CONNMAN. IPTABLES AND POLICY ROUTING. Per application rules iptables t mangle A OUTPUT m owner uid owner 1234 j MARK set mark 1234 Global rules iptables t mangle A INPUT j CONNMARK restore mark iptables t mangle A POSTROUTING j CONNMARK save mark Policy routing ip rule add fwmark 1234 table 1234 ip route add default via dev wlan0 table 1234 Page 16

17 CONNMAN. ROUTING. Page 17

18 CONNMAN. STATISTICS. Android uses two kernel modules: xt_qtaguid: tags all traffic from/to sockets quota2: Accounting and enforcing. Counters reported through NFLOG netdev maintainers suggested to use NFQUEUE Look at all packets in userspace (zero copy) Each packet has meta information attached (GID, UID, etc.) Work in progress Page 18

19 SYSTEMD. DHCP library recently added Based on ConnMan's gdhcp ConnMan will use it in future systemd suppports 'only static/simple' setups Network boot Needs to learn to handover Work in progress Page 19

20 THANK YOU VERY MUCH FOR YOUR INTEREST. Page 20

21 RESOURCES. 01.org/connman Page 21

12 th Kandroid Conference. Android in the Car. Oct.25, 2013 Wind River Solutions & Services

12 th Kandroid Conference. Android in the Car. Oct.25, 2013 Wind River Solutions & Services Android in the Car Oct.25, 2013 ty.kim@windriver.com Wind River Solutions & Services Evolution and Revolution 2 Internet of Things 3 Agenda Smartphone Connectivity The concept of Connected Car Why Smartphone