1 MobiCore Daemon in Android 2 --- 3 4 Command line 5 -- 6 The MobiCore Daemon supports 4 command line options. It also displays them with the help option: 7 8 # ./mcDriverDaemon -h 9 usage: ./mcDriverDaemon [-mdsbh] 10 Start MobiCore Daemon 11 12 -h show this help 13 -b fork to background 14 -m IMAGE load mobicore from IMAGE to DDR 15 -s disable daemon scheduler(default enabled) 16 -d SIZE donate SIZE bytes to mobicore(disabled on most platforms) 17 -r DRIVER load dyamic driver 18 19 -b Forks the daemon to background 20 21 # ./mcDriverDaemon -b 22 23 Makes the daemon run in background and returns immediate control to the shell. No need to use shell forking with & 24 25 -m Loads a mobicore image to DDR 26 27 # ./mcDriverDaemon -m /data/app/mobicore.img 28 29 Loads the mobicore.img to DDR and starts executing it. 30 31 -s Disables NQ IRQ scheduler 32 33 # ./mcDriverDaemon -s 34 35 -d Sets how much RAM is donated to Mobicore in bytes 36 37 # ./mcDriverDaemon -d 1048576 38 39 If no -d is specified then the daemon donates 1Mb. The Value 0 disables RAM donation. 40 41 -r Loads dynamic driver at startup. The full path of the driver binary must be given, eg. /data/app/driver.drbin 42 43 # ./mcDriverDaemon -r /data/app/driver.drbin 44 45 Custom registry locations 46 -- 47 Registry fallback 48 49 In case of a Device wipe in Android the /data/app/mcRegistry folder will be deleted with all it's contents. To overcome 50 this the daemon supports a fallback location(eg /system/app/mcRegistry): it first tries to load the trustlet 51 from /data/app/mcRegistry/[uuid].tlbin and if it fails then it tries to read the trustlet from /system/app/mcRegistry/[uuid].tlb 52 53 Both paths are completely configurable for the Daemon using 2 environment variables:MC_REGISTRY_PATH and MC_REGISTRY_FALLBACK_PATH 54 55 For example if you want to use /data/app/mcRegistry as the default path and /system/app/mcRegistry as the fallback path: 56 57 $ export MC_REGISTRY_PATH=/data/app/mcRegistry 58 $ export MC_REGISTRY_FALLBACK_PATH=/system/app/mcRegistry 59 $ /data/app/mcDriverDaemon 60 61 Custom authtoken path 62 -- 63 64 The authtoken file is created at provisioning and is by default located in /data/app/mcRegistry/00000.authtoken 65 66 Because a device wipe could delete this file and make MobiCore unusable a new environment variable has been added to change the 67 default behaviour: MC_AUTH_TOKEN_PATH 68 69 $ export MC_AUTH_TOKEN_PATH=/efs 70 $ /data/app/mcDriverDaemon 71 72 This would change the location of the authtoken file to /efs 73
