Difference between revisions of "Save and Restore"
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** Needs to be somewhere outside of $IPKG_OFFLINE_ROOT | ** Needs to be somewhere outside of $IPKG_OFFLINE_ROOT | ||
** Should be centralised to start, but could be distributed later once things stabilise | ** Should be centralised to start, but could be distributed later once things stabilise | ||
+ | ** Choose /var/svc/org.webosinternals.saverestore |
Revision as of 07:12, 19 January 2010
A general architecture for saving and restoring stuff from application data areas to the USB drive.
Security model:
- A binary C-based saverestoremgr service provides the ability to run a set of pre-installed scripts
- The service calls the scripts with a small set of known arguments (e.g. 'save', 'restore', etc)
- The scripts are stored in a location that is only accessible by installing them as root (e.g. a signed app with a post-install script)
- The service does not allow the execution of scripts outside of that location
- Therefore, any script that is run by the service has been installed by a means that already had root access
- The scripts are named according to the appId of the application that owns the data
Features of the service:
- A method to list the current set of available scripts
- A method to call an individual script, or the set of all scripts, with a command method
- save
- restore
Implementation Decisions
- Where to store the scripts
- Needs to be somewhere outside of $IPKG_OFFLINE_ROOT
- Should be centralised to start, but could be distributed later once things stabilise
- Choose /var/svc/org.webosinternals.saverestore