[RFC PATCH v2 07/17] test: overlayfs related tweaks

[Christian Göttsche <cgoettsche@xxxxxxxxxxxxx>]

From: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>

OverlayFS does not support a couple of ioctl's and other features, like
NFS, so skip and tweak relevant tests.

Signed-off-by: Christian Göttsche <cgzones@xxxxxxxxxxxxxx>
---
v2: fix support for NFS, by using FS_IOC_GETFLAGS only on FIGETBZ
    failure
---
 tests/capable_sys/test     |  2 +-
 tests/ioctl/test_ioctl.c   | 16 +++++++++++++---
 tests/ioctl/test_noioctl.c | 11 +++++++++--
 tests/overlay/test         |  7 ++++---
 4 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/tests/capable_sys/test b/tests/capable_sys/test
index 132c732..6fb57a1 100755
--- a/tests/capable_sys/test
+++ b/tests/capable_sys/test
@@ -10,7 +10,7 @@ BEGIN {
     $basedir =~ s|(.*)/[^/]*|$1|;
 
     $fs          = `stat -f --print %T $basedir`;
-    $test_fibmap = ( $fs ne "btrfs" and $fs ne "nfs" );
+    $test_fibmap = ( $fs ne "btrfs" and $fs ne "nfs" and $fs ne "overlayfs" );
 
     $test_count = 7;
     if ($test_fibmap) {
diff --git a/tests/ioctl/test_ioctl.c b/tests/ioctl/test_ioctl.c
index 9bf732d..a68c4e0 100644
--- a/tests/ioctl/test_ioctl.c
+++ b/tests/ioctl/test_ioctl.c
@@ -27,11 +27,21 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
-	/* This one should hit the FILE__GETATTR or FILE__IOCTL test */
+	/*
+	 * This one should hit the FILE__GETATTR or FILE__IOCTL test.
+	 * FIGETBSZ is not available on overlayfs,
+	 * and FS_IOC_GETFLAGS is not available on NFS.
+	 */
 	rc = ioctl(fd, FIGETBSZ, &val);
 	if( rc < 0 ) {
-		perror("test_ioctl:FIGETBSZ");
-		exit(1);
+		if(errno == EINVAL) {
+			rc = ioctl(fd, FS_IOC_GETFLAGS, &val);
+		}
+
+		if( rc < 0 ) {
+			perror("test_ioctl:FIGETBSZ/FS_IOC_GETFLAGS");
+			exit(1);
+		}
 	}
 
 	/* This one should hit the FILE__IOCTL test */
diff --git a/tests/ioctl/test_noioctl.c b/tests/ioctl/test_noioctl.c
index ea9f120..f8cac63 100644
--- a/tests/ioctl/test_noioctl.c
+++ b/tests/ioctl/test_noioctl.c
@@ -43,10 +43,17 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
-	/* This one should hit the FILE__IOCTL or FILE__GETATTR test and fail. */
+	/*
+	 * This one should hit the FILE__GETATTR or FILE__IOCTL test.
+	 * FIGETBSZ is not available on overlayfs,
+	 * and FS_IOC_GETFLAGS is not available on NFS.
+	 */
 	rc = ioctl(fd, FIGETBSZ, &val);
+	if( rc == -1 && errno == EINVAL ) {
+		rc = ioctl(fd, FS_IOC_GETFLAGS, &val);
+	}
 	if( rc == 0 ) {
-		printf("test_noioctl:FIGETBSZ");
+		printf("test_ioctl:FIGETBSZ/FS_IOC_GETFLAGS");
 		exit(1);
 	}
 
diff --git a/tests/overlay/test b/tests/overlay/test
index c8367dd..744fc9c 100755
--- a/tests/overlay/test
+++ b/tests/overlay/test
@@ -9,14 +9,15 @@ BEGIN {
     chop($seuser);
     $seuser =~ s|^(\w+):.*$|$1|;
 
-    $isnfs = `stat -f --print %T $basedir`;
+    $fs = `stat -f --print %T $basedir`;
 
     # check if kernel supports overlayfs and SELinux labeling
     if ( system("grep -q security_inode_copy_up /proc/kallsyms") ) {
         plan skip_all => "overlayfs not supported with SELinux in this kernel";
     }
-    elsif ( $isnfs eq "nfs" ) {
-        plan skip_all => "overlayfs upperdir not supported on NFS";
+    elsif ( $fs eq "nfs" or $fs eq "overlayfs" ) {
+        plan skip_all =>
+          "overlayfs upperdir not supported on NFS and OverlayFS";
     }
     else {
         plan tests => 119;
-- 
2.47.1