staging-v0.3.5: Added is_debian_live() and disabled manual partitioning

staging-v0.3.5/plugins/partition/select_device.cs

@@ -29,14 +29,15 @@
 		<p><input type="checkbox" name="confirm" value="1" id="confirm" /><label for="confirm"><?cs var:html_escape(Lang.Plugins.partition.Text.Confirm) ?></label></p>
 
 		<p><input type="hidden" name="device" value="<?cs var:Data.CurrentDisk.device ?>" />
-		<?cs call:show_help(Lang.Plugins.partition.Help.PartMode) ?>
+		<!--Manual partitioning disabled for Release 0.3.5 -->
+		<!--<?cs call:show_help(Lang.Plugins.partition.Help.PartMode) ?>-->
 
 		<div align="center"><table><tr>
 			<!-- we have to avoid an ugly IE bug, that ignores the "value" attribute
 				of "button" elements: if a variable called 'easy' is set, then this
 				button was choosen - uuuuuugly! -->
 			<td><input class="button" type="submit" name="easy" value="<?cs var:html_escape(Lang.Plugins.partition.Button.EasySetup) ?>" /></td>
-			<td><input class="button" type="submit" name="add_part" value="<?cs var:html_escape(Lang.Plugins.partition.Button.SelectDevice) ?>" /></td>
+			<td><!--This button commented out for CryptoNAS 0.3.5 release <input class="button" type="submit" name="add_part" value="<?cs var:html_escape(Lang.Plugins.partition.Button.SelectDevice) ?>" /> --></td>
 		</tr></table></div>
 
 	</form>

staging-v0.3.5/src/cryptobox/core/blockdevice.py

@@ -211,6 +211,10 @@ class Blockdevice:
             ## extended partition, unused loop device
             CACHE.set(cache_link, False)
             return False
+        if self.is_debian_live():
+            ##Don't try to write to Debian Live Media
+            CACHE.set(cache_link, False)
+            return False
         ## are we the device mapper of a luks device?
         for slave in self.slaves:
             if get_blockdevice(slave, self.sysblock_dir,
@@ -238,6 +242,48 @@ class Blockdevice:
         else:
             return False
         
+    def is_debian_live(self):
+        """is the device part of the Debian Live runtime
+        """
+        ##Debian Live ("iso" or "usb-hdd" versions) uses two block
+        ##devices as part of its runtime system. The raw boot media
+        ##(such as a usb key or cdrom) is mounted at /live_media,
+        ##and the root filesystem is mounted off of the live media
+        ##using /dev/loop0.
+        deb_live_devs = []
+        for line in file("/proc/mounts"):
+            try:
+                fields = line.split(" ")
+                ##We are looking for, for example:
+                ##/dev/hdc /live_media iso9660 ro 0 0
+                ##and
+                ##/dev/loop0 /filesystem.squashfs squashfs ro 0 0
+                if (fields[1] == "/live_media" and
+                    fields[3] == "ro"):
+                    deb_live_devs.append(fields[0])
+                elif (fields[1] == "/filesystem.squashfs" and
+                      fields[3] == "ro"):
+                    deb_live_devs.append(fields[0])
+            except IndexError:
+                pass
+
+        ##TODO:    
+        ##Since the lines in /proc/mounts that affect deb_live_devs
+        ##don't change after startup, deb_live_devs could be cached here.
+        ##
+        ##Check whether any Debian Live devices refer to the
+        ##block device we were passed
+        matched = False
+        for dev in deb_live_devs:
+            for node in self.__get_device_nodes():
+                if (node == dev):
+                    matched = True
+                    
+                
+        ##If no nodes of the block device match the Debian Live
+        ##devices, return False            
+        return matched
+        
 
     def is_lvm_pv(self):
         """return if the device is a physical volume of a LVM