Add extended attributes tests

encfs/main.cpp

@@ -245,7 +245,7 @@ static bool processArgs(int argc, char *argv[],
     // 'o' : arguments meant for fuse
     // 't' : syslog tag
     int res =
-        getopt_long(argc, argv, "HsSfvdmi:o:t:", long_options, &option_index);
+        getopt_long(argc, argv, "HsSfvdmi:o:t:V", long_options, &option_index);
 
     if (res == -1) break;
 
@@ -355,6 +355,9 @@ static bool processArgs(int argc, char *argv[],
       case 'V':
         // xgroup(usage)
         cerr << autosprintf(_("encfs version %s"), VERSION) << endl;
+#if defined(HAVE_XATTR)
+        cerr << "Compiled with : HAVE_XATTR" << endl;
+#endif
         exit(EXIT_SUCCESS);
         break;
       case 'H':

tests/normal.t.pl

@@ -2,7 +2,7 @@
 
 # Test EncFS normal and paranoid mode
 
-use Test::More tests => 116;
+use Test::More tests => 122;
 use File::Path;
 use File::Copy;
 use File::Temp;
@@ -12,6 +12,35 @@
 
 my $tempDir = $ENV{'TMPDIR'} || "/tmp";
 
+if($^O eq "linux" and $tempDir eq "/tmp") {
+   # On Linux, /tmp is often a tmpfs mount that does not support
+   # extended attributes. Use /var/tmp instead.
+   $tempDir = "/var/tmp";
+}
+
+# Find attr binary
+# Linux
+my @setattr = ("attr", "-s", "encfs", "-V", "hello");
+my @getattr = ("attr", "-g", "encfs");
+if(system("which xattr > /dev/null 2>&1") == 0)
+{
+    # Mac OS X
+    @setattr = ("xattr", "-sw", "encfs", "hello");
+    @getattr = ("xattr", "-sp", "encfs");
+}
+if(system("which lsextattr > /dev/null 2>&1") == 0)
+{
+    # FreeBSD
+    @setattr = ("setextattr", "-h", "user", "encfs", "hello");
+    @getattr = ("getextattr", "-h", "user", "encfs");
+}
+# Do we support xattr ?
+my $have_xattr = 1;
+if(system("./build/encfs -V 2>&1 | grep -q HAVE_XATTR") != 0)
+{
+    $have_xattr = 0;
+}
+
 # test filesystem in standard config mode
 &runTests('standard');
 
@@ -270,7 +299,7 @@ sub encName
     return $enc;
 }
 
-# Test symlinks & hardlinks
+# Test symlinks & hardlinks, and extended attributes
 sub links
 {
     my $hardlinkTests = shift;
@@ -295,6 +324,14 @@ sub links
         ok( link("$crypt/data", "$crypt/data.2"), "hard link");
         checkContents("$crypt/data.2", $contents, "hardlink read");
     };
+
+    # extended attributes
+    my $return_code = ($have_xattr) ? system(@setattr, "$crypt/data") : 0;
+    is($return_code, 0, "extended attributes can be set (return code was $return_code)");
+    $return_code = ($have_xattr) ? system(@getattr, "$crypt/data") : 0;
+    is($return_code, 0, "extended attributes can be get (return code was $return_code)");
+    $return_code = ($have_xattr) ? system(@getattr, "$crypt/data-rel") : 1;
+    isnt($return_code, 0, "extended attributes operations do not follow symlinks (return code was $return_code)");
 }
 
 # Test mount

tests/reverse.t.pl

@@ -26,6 +26,12 @@
     # FreeBSD
     @binattr = ("lsextattr", "-h", "user");
 }
+# Do we support xattr ?
+my $have_xattr = 1;
+if(system("./build/encfs -V 2>&1 | grep -q HAVE_XATTR") != 0)
+{
+    $have_xattr = 0;
+}
 
 # Helper function
 # Create a new empty working directory
@@ -98,8 +104,7 @@ sub symlink_test
     $dec = readlink("$decrypted/symlink");
     ok( $dec eq $target, "symlink to '$target'") or
         print("# (original) $target' != '$dec' (decrypted)\n");
-    system(@binattr, "$decrypted/symlink");
-    my $return_code = $?;
+    my $return_code = ($have_xattr) ? system(@binattr, "$decrypted/symlink") : 0;
     is($return_code, 0, "symlink to '$target' extended attributes can be read (return code was $return_code)");
     unlink("$plain/symlink");
 }