selinux-testsuite: Add btrfs support for filesystem tests

Richard Haines · WOnder93 · commit 0de52fcdaa3e · 2025-10-09T14:54:03.000+02:00
This allows btrfs filesystems to be created to support the
filesystem mount(2) type calls and the fs_filesystem fsmount(2)
type calls.

Signed-off-by: Richard Haines &lt;richard_c_haines@btinternet.com&gt;
Signed-off-by: Stephen Smalley &lt;stephen.smalley.work@gmail.com&gt;
Signed-off-by: Ondrej Mosnacek &lt;omosnace@redhat.com&gt;
diff --git a/README.md b/README.md
@@ -61,6 +61,7 @@ similar dependencies):
 * e2fsprogs _(used by the ext4 filesystem tests)_
 * jfsutils _(used by the jfs filesystem tests)_
 * dosfstools _(used by the vfat filesystem tests)_
+* btrfs-progs _(used by the btrfs filesystem tests)_
 * nftables _(used by inet_socket and sctp tests if ver >= 9.3 for secmark testing )_
 * rdma-core-devel _(to build the `ibpkey` test program)_
 
@@ -89,6 +90,7 @@ following command (NOTE: On Fedora 32 and below you need to remove
 		e2fsprogs \
 		jfsutils \
 		dosfstools \
+		btrfs-progs \
 		rdma-core-devel \
 		kernel-devel-$(uname -r) \
 		kernel-modules-$(uname -r)
@@ -136,6 +138,7 @@ command:
 		e2fsprogs \
 		jfsutils \
 		dosfstools \
+		btrfs-progs \
 		nftables \
 		netlabel-tools \
 		libibverbs-dev
diff --git a/defconfig b/defconfig
@@ -122,6 +122,11 @@ CONFIG_XFS_QUOTA=y
 CONFIG_VFAT_FS=m
 CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
 
+
+# Test BTRFS filesystem.
+# This is not required for SELinux operation itself.
+CONFIG_BTRFS_FS=y
+
 # watch_queue for key changes.
 # They are not required for SELinux operation itself.
 CONFIG_WATCH_QUEUE=y
diff --git a/tests/Makefile b/tests/Makefile
@@ -4,7 +4,7 @@ SBINDIR ?= $(PREFIX)/sbin
 POLDEV ?= $(PREFIX)/share/selinux/devel
 INCLUDEDIR ?= $(PREFIX)/include
 SELINUXFS ?= /sys/fs/selinux
-FILESYSTEMS ?= ext4 xfs jfs vfat
+FILESYSTEMS ?= ext4 xfs jfs vfat btrfs
 
 export CFLAGS+=-g -O0 -Wall -D_GNU_SOURCE
 
diff --git a/tests/filesystem/Filesystem.pm b/tests/filesystem/Filesystem.pm
@@ -126,6 +126,10 @@ sub make_fs {
     if ( $mk_type eq "xfs" ) {
         $mk_size = 300;
     }
+    elsif ( $mk_type eq "btrfs" ) {
+        $mk_size = 128;
+    }
+
     print "Create $mk_dir/fstest with dd\n";
     $result =
       system(
diff --git a/tests/filesystem/btrfs b/tests/filesystem/btrfs
@@ -0,0 +1 @@
+.
diff --git a/tests/filesystem/test b/tests/filesystem/test
@@ -89,6 +89,12 @@ BEGIN {
         $test_count   = 55;
         $quota_checks = 0;
     }
+
+    # BTRFS uses internal quotas requiring no security hooks
+    elsif ( $fs_type eq "btrfs" ) {
+        $test_count   = 55;
+        $quota_checks = 0;
+    }
     else {
         $test_count = 69;
     }
diff --git a/tests/fs_filesystem/btrfs b/tests/fs_filesystem/btrfs
@@ -0,0 +1 @@
+.
diff --git a/tests/fs_filesystem/test b/tests/fs_filesystem/test
@@ -92,6 +92,12 @@ BEGIN {
         $test_count   = 54;
         $quota_checks = 0;
     }
+
+    # BTRFS uses internal quotas requiring no security hooks
+    elsif ( $fs_type eq "btrfs" ) {
+        $test_count   = 54;
+        $quota_checks = 0;
+    }
     else {
         $test_count = 68;
     }
diff --git a/tmt/tests.fmf b/tmt/tests.fmf
@@ -118,6 +118,7 @@
     - e2fsprogs
     - jfsutils
     - dosfstools
+    - btrfs-progs
     - rdma-core-devel
     - kexec-tools
   /main:

Original file line number	Diff line number	Diff line change
`@@ -89,6 +89,12 @@ BEGIN {`
`89`	`89`	`$test_count = 55;`
`90`	`90`	`$quota_checks = 0;`
`91`	`91`	`}`
	`92`	`+`
	`93`	`+ # BTRFS uses internal quotas requiring no security hooks`
	`94`	`+ elsif ( $fs_type eq "btrfs" ) {`
	`95`	`+ $test_count = 55;`
	`96`	`+ $quota_checks = 0;`
	`97`	`+ }`
`92`	`98`	`else {`
`93`	`99`	`$test_count = 69;`
`94`	`100`	`}`
Original file line number	Diff line number	Diff line change
`@@ -92,6 +92,12 @@ BEGIN {`
`92`	`92`	`$test_count = 54;`
`93`	`93`	`$quota_checks = 0;`
`94`	`94`	`}`
	`95`	`+`
	`96`	`+ # BTRFS uses internal quotas requiring no security hooks`
	`97`	`+ elsif ( $fs_type eq "btrfs" ) {`
	`98`	`+ $test_count = 54;`
	`99`	`+ $quota_checks = 0;`
	`100`	`+ }`
`95`	`101`	`else {`
`96`	`102`	`$test_count = 68;`
`97`	`103`	`}`