Delete mountpoint when tomb is closed (fix #149)

two bugs were left behind by the last refactoring, one about
consistency of the mountpoint naming (now using $TOMBNAME everywhere,
without the added .tomb extension as per #180), the other about a
missing _sudo to prefix rmdir commands.

Test suite has been updated accordingly.

This fix introduces a mandatory condition for the next update: all
tombs must be closed when upgrading the tomb script, else it will not
be able to correctly close them.

extras/test/runtests

@@ -84,15 +84,15 @@ test-tomb-create() {
 
 test-bind-hooks() {
     notice "Testing bind hooks"
-    tt list test
+
-    [[ $? = 0 ]] || {
     tt --ignore-swap --unsafe --tomb-pwd ${dummypass} \
-            open /tmp/test.tomb -k /tmp/test.tomb.key }
+        open /tmp/test.tomb -k /tmp/test.tomb.key
+
     rnd=$RANDOM
     bindtest="dyne-tomb-bind-test-$rnd"
-    echo $rnd > /media/test.tomb/$bindtest
+    echo $rnd > /media/test/$bindtest
-    rm -f /media/test.tomb/bind-hooks
+    rm -f /media/test/bind-hooks
-    echo "$bindtest $bindtest" > /media/test.tomb/bind-hooks
+    echo "$bindtest $bindtest" > /media/test/bind-hooks
     touch $HOME/$bindtest
     tt close test
     tt -k /tmp/test.tomb.key --unsafe --tomb-pwd ${dummypass} open /tmp/test.tomb
@@ -104,7 +104,7 @@ test-bind-hooks() {
     else
 	    error "Bind hook on file reports incongruence"
     fi
-    rm -f "/media/test.tomb/$bindtest"
+    rm -f "/media/test/$bindtest"
     tt close test
     # Remove test file in HOME
     rm -f "$HOME/$bindtest"
@@ -186,10 +186,10 @@ notice "Generating content for file integrity test"
 
 tt -k /tmp/test.tomb.key --unsafe --tomb-pwd ${dummypass} open /tmp/test.tomb
 
-tt dig -s 10 /media/test.tomb/datacheck.raw
+tt dig -s 10 /media/test/datacheck.raw
 
-crc="sha256 /media/test.tomb/datacheck.raw"
+crc="sha256 /media/test/datacheck.raw"
-echo "$crc" > /media/test.tomb/datacheck.sha
+echo "$crc" > /media/test/datacheck.sha
 
 tt --unsafe close test
 
@@ -208,7 +208,7 @@ tt -k /tmp/test.tomb.key --unsafe --tomb-pwd ${dummypass} open /tmp/test.tomb
 
 { test $? = 0 } && {
     
-    crc2="sha256 /media/test.tomb/datacheck.raw"
+    crc2="sha256 /media/test/datacheck.raw"
     
     { test "$crc" = "$crc2" } && { results+=(chksum SUCCESS) }
 

tomb

@@ -230,6 +230,7 @@ _whoami() {
 
 # Define sepulture's plot (setup tomb-related arguments)
 # Synopsis: _plot /path/to/the.tomb
+# Set TOMB{PATH,DIR,FILE,NAME}
 _plot() {
 
     # We set global variables
@@ -1620,6 +1621,8 @@ change_tomb_key() {
     }
 
     _check_swap
+
+    # this also calls _plot()
     is_valid_tomb $tombpath
 
     lo_mount $TOMBPATH
@@ -1704,20 +1707,21 @@ mount_tomb() {
 
     _check_swap
 
+    # this also calls _plot()
     is_valid_tomb $tombpath
 
     _load_key # Try loading new key from option -k and set TOMBKEYFILE
 
     tombmount="$2"
     [[ "$tombmount" = "" ]] && {
-        tombmount=/media/$TOMBFILE
+        tombmount=/media/$TOMBNAME
         [[ -d /media ]] || { # no /media found, adopting /run/media/$USER (udisk2 compat)
-            tombmount=/run/media/$_USER/$TOMBFILE
+            tombmount=/run/media/$_USER/$TOMBNAME
         }
         _message "Mountpoint not specified, using default: ::1 mount point::" $tombmount
     }
 
-    _success "Opening ::1 tomb file:: on ::2 mount point::" $TOMBFILE $tombmount
+    _success "Opening ::1 tomb file:: on ::2 mount point::" $TOMBNAME $tombmount
 
     lo_mount $TOMBPATH
     nstloop=`lo_new`
@@ -1799,7 +1803,7 @@ mount_tomb() {
         [[ $oldmountopts != $MOUNTOPTS ]] && \
           _warning "Are mount options '::1 mount options::' valid?" $MOUNTOPTS
         # TODO: move cleanup to _endgame()
-        [[ -d $tombmount ]] && rmdir $tombmount
+        [[ -d $tombmount ]] && _sudo rmdir $tombmount
         [[ -e /dev/mapper/$mapper ]] && _sudo cryptsetup luksClose $mapper
         # The loop is taken care of in _endgame()
         _failure "Cannot mount ::1 tomb name::" $TOMBNAME
@@ -2275,7 +2279,8 @@ resize_tomb() {
     [[ -z "$newtombsize" ]] && {
         _failure "Aborting operations: new size was not specified, use -s" }
 
-    is_valid_tomb $tombpath        # Set TOMB{PATH,DIR,FILE,NAME}
+    # this also calls _plot()
+    is_valid_tomb $tombpath
 
     _load_key # Try loading new key from option -k and set TOMBKEYFILE
 
@@ -2414,8 +2419,8 @@ umount_tomb() {
         [[ $? = 0 ]] || { _failure "Tomb is busy, cannot umount!" }
 
         # If we used a default mountpoint and is now empty, delete it
-        [[ "$tombmount" -regex-match "[/run]?/media[/$_USER]?/$tombname.tomb" ]] && {
+        [[ "$tombmount" -regex-match "[/run]?/media[/$_USER]?/$tombname" ]] && {
-            rmdir $tombmount }
+            _sudo rmdir $tombmount }
 
         _sudo cryptsetup luksClose $mapper
         [[ $? == 0 ]] || {