Save and Restore - Revision history

Tibfib at 01:04, 30 March 2010

2010-03-30T01:04:12Z

RodWhitby at 13:41, 26 March 2010

2010-03-26T13:41:04Z

RodWhitby at 23:30, 22 March 2010

2010-03-22T23:30:52Z

RodWhitby at 04:46, 21 March 2010

2010-03-21T04:46:05Z

RodWhitby at 06:11, 27 February 2010

2010-02-27T06:11:14Z

RodWhitby at 06:00, 27 February 2010

2010-02-27T06:00:47Z

RodWhitby at 06:12, 19 January 2010

2010-01-19T06:12:28Z

RodWhitby at 03:13, 19 January 2010

2010-01-19T03:13:46Z

RodWhitby: New page: 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 ...

2010-01-19T02:14:45Z

New page: 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 ...

New page

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

@@ Line 1: / Line 1: @@
 A general architecture for saving and restoring stuff from application data areas to the USB drive.
-Architecture:
+== Architecture ==
 * A binary C-based org.webosinternals.saverestore service provides the ability to run a set of pre-installed scripts
@@ Line 10: / Line 11: @@
 * Therefore, any script that is run by the service has been installed by a means that already had root access
-Features of the service:
+== Features of the service ==
 * A method to list the current set of available scripts with info about id, name, ...
@@ Line 17: / Line 18: @@
 ** restore
-Implementation Decisions
+== Implementation Decisions ==
 * Where to store the data
 ** Choose /media/internal/saverestore
-Situations To Persist Across
+== Situations To Persist Across ==
 * Partial Erase
 * Profile Reset (/var and /media/cryptofs are wiped, but /media/internal is retained)
-Locations of Application Data
+== Locations of Application Data ==
 * /var/palm/data

@@ Line 31: / Line 31: @@
 * /var/palm/data
 * /media/internal/.app-storage
 * additional files in the application directory

@@ Line 1: / Line 1: @@
 A general architecture for saving and restoring stuff from application data areas to the USB drive.
-Security model:
+Architecture:
 * 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
 Features of the service:
@@ Line 19: / Line 19: @@
 Implementation Decisions
-* Where to store the scripts
+* Where to store the data
-** Needs to be somewhere outside of $IPKG_OFFLINE_ROOT
+** Choose /media/internal/saverestore
 Situations To Persist Across
@@ Line 33: / Line 31: @@
 * /var/palm/data
 * /media/internal/.app-storage

← Older revision		Revision as of 06:11, 27 February 2010
Line 28:		Line 28:
	* Partial Erase		* Partial Erase
	* Profile Reset (/var and /media/cryptofs are wiped, but /media/internal is retained)		* Profile Reset (/var and /media/cryptofs are wiped, but /media/internal is retained)
		+
		+	Locations of Application Data
		+
		+	* /var/palm/data
		+	* /media/internal/.app-storage

← Older revision		Revision as of 06:00, 27 February 2010
Line 23:		Line 23:
	** 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		** Choose /var/svc/org.webosinternals.saverestore
		+
		+	Situations To Persist Across
		+
		+	* Partial Erase
		+	* Profile Reset (/var and /media/cryptofs are wiped, but /media/internal is retained)

← Older revision		Revision as of 06:12, 19 January 2010
Line 22:		Line 22:
	** 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

← Older revision		Revision as of 03:13, 19 January 2010
Line 16:		Line 16:
	** save		** save
	** restore		** 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