| MobiCore Daemon in Android |
| --- |
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| Command line |
| -- |
| The MobiCore Daemon supports 4 command line options. It also displays them with the help option: |
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| # ./mcDriverDaemon -h |
| usage: ./mcDriverDaemon [-mdsbh] |
| Start MobiCore Daemon |
| |
| -h show this help |
| -b fork to background |
| -m IMAGE load mobicore from IMAGE to DDR |
| -s disable daemon scheduler(default enabled) |
| -d SIZE donate SIZE bytes to mobicore(disabled on most platforms) |
| -r DRIVER load dyamic driver |
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| -b Forks the daemon to background |
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| # ./mcDriverDaemon -b |
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| Makes the daemon run in background and returns immediate control to the shell. No need to use shell forking with & |
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| -m Loads a mobicore image to DDR |
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| # ./mcDriverDaemon -m /data/app/mobicore.img |
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| Loads the mobicore.img to DDR and starts executing it. |
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| -s Disables NQ IRQ scheduler |
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| # ./mcDriverDaemon -s |
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| -d Sets how much RAM is donated to Mobicore in bytes |
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| # ./mcDriverDaemon -d 1048576 |
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| If no -d is specified then the daemon donates 1Mb. The Value 0 disables RAM donation. |
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| -r Loads dynamic driver at startup. The full path of the driver binary must be given, eg. /data/app/driver.drbin |
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| # ./mcDriverDaemon -r /data/app/driver.drbin |
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| Custom registry locations |
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| Registry fallback |
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| In case of a Device wipe in Android the /data/app/mcRegistry folder will be deleted with all it's contents. To overcome |
| this the daemon supports a fallback location(eg /system/app/mcRegistry): it first tries to load the trustlet |
| from /data/app/mcRegistry/[uuid].tlbin and if it fails then it tries to read the trustlet from /system/app/mcRegistry/[uuid].tlb |
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| Both paths are completely configurable for the Daemon using 2 environment variables:MC_REGISTRY_PATH and MC_REGISTRY_FALLBACK_PATH |
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| For example if you want to use /data/app/mcRegistry as the default path and /system/app/mcRegistry as the fallback path: |
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| $ export MC_REGISTRY_PATH=/data/app/mcRegistry |
| $ export MC_REGISTRY_FALLBACK_PATH=/system/app/mcRegistry |
| $ /data/app/mcDriverDaemon |
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| Custom authtoken path |
| -- |
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| The authtoken file is created at provisioning and is by default located in /data/app/mcRegistry/00000.authtoken |
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| Because a device wipe could delete this file and make MobiCore unusable a new environment variable has been added to change the |
| default behaviour: MC_AUTH_TOKEN_PATH |
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| $ export MC_AUTH_TOKEN_PATH=/efs |
| $ /data/app/mcDriverDaemon |
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| This would change the location of the authtoken file to /efs |
