Enhance and expand kernel privilege regression tests in support of

work present in FreeBSD 7.0 to refine the kernel privilege model:

- Introduce support for jail as a testing variable, in order to
  confirm that privileges are properly restricted in the jail
  environment.

- Restructure overall testing approach so that privilege and jail
  conditions are set in the testing infrastructure before tests
  are invoked, and done so in a custom-created process to isolate
  the impact of tests from each other in a more consistent way.

- Tests now provide setup and cleanup hooks that occur before and
  after the test runs.

- New privilege tests are now present for several audit
  privileges, several credential management privileges, dmesg
  buffer reading privilege, and netinet raw socket creation.

- Other existing tests are restructured and generally improved as
  a result of better framework structure and jail as a variable.
  For exampe, we now test that certain sysctls are writable only
  outside jail, while others are writable within jail.  On a
  similar note, privileges relating to setting UFS file flags are
  now better exercised, as with the right to chmod and utimes
  files.

Approved by:	re (bmah)
Obtained from:	TrustedBSD Project

1 files changed, 146 insertions, 0 deletions

diff --git a/tools/regression/priv/priv_vfs_chmod.c b/tools/regression/priv/priv_vfs_chmod.c
new file mode 100644
index 0000000..6a64871
--- /dev/null
+++ b/tools/regression/priv/priv_vfs_chmod.c
@@ -0,0 +1,146 @@
+/*-
+ * Copyright (c) 2006 nCircle Network Security, Inc.
+ * Copyright (c) 2007 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * This software was developed by Robert N. M. Watson for the TrustedBSD
+ * Project under contract to nCircle Network Security, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR, NCIRCLE NETWORK SECURITY,
+ * INC., OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Check that we must either be running as root or the owner of the file in
+ * order to modify permissions on the file.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <err.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "main.h"
+
+static char fpath[1024];
+static int fpath_initialized;
+
+int
+priv_vfs_chmod_froot_setup(int asroot, int injail, struct test *test)
+{
+
+	setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_ROOT, GID_WHEEL,
+	    0600);
+	fpath_initialized = 1;
+	return (0);
+}
+
+int
+priv_vfs_chmod_fowner_setup(int asroot, int injail, struct test *test)
+{
+
+	setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_OWNER,
+	    GID_OWNER, 0600);
+	fpath_initialized = 1;
+	return (0);
+}
+
+int
+priv_vfs_chmod_fother_setup(int asroot, int injail, struct test *test)
+{
+
+	setup_file("priv_vfs_chmod_setup: fpath", fpath, UID_OTHER,
+	    GID_OTHER, 0600);
+	fpath_initialized = 1;
+	return (0);
+}
+
+void
+priv_vfs_chmod_froot(int asroot, int injail, struct test *test)
+{
+	int error;
+
+	error = chmod(fpath, 0640);
+	if (asroot && injail)
+		expect("priv_vfs_chmod_froot(asroot, injail)", error, 0, 0);
+	if (asroot && !injail)
+		expect("priv_vfs_chmod_froot(asroot, !injail)", error, 0, 0);
+	if (!asroot && injail)
+		expect("priv_vfs_chmod_froot(!asroot, injail)", error, -1,
+		    EPERM);
+	if (!asroot && !injail)
+		expect("priv_vfs_chmod_froot(!asroot, !injail)", error, -1,
+		    EPERM);
+}
+
+void
+priv_vfs_chmod_fowner(int asroot, int injail, struct test *test)
+{
+	int error;
+
+	error = chmod(fpath, 0640);
+	if (asroot && injail)
+		expect("priv_vfs_chmod_fowner(asroot, injail)", error, 0, 0);
+	if (asroot && !injail)
+		expect("priv_vfs_chmod_fowner(asroot, !injail)", error, 0,
+		    0);
+	if (!asroot && injail)
+		expect("priv_vfs_chmod_fowner(!asroot, injail)", error, 0,
+		    0);
+	if (!asroot && !injail)
+		expect("priv_vfs_chmod_fowner(!asroot, !injail)", error, 0,
+		    0);
+}
+
+void
+priv_vfs_chmod_fother(int asroot, int injail, struct test *test)
+{
+	int error;
+
+	error = chmod(fpath, 0640);
+	if (asroot && injail)
+		expect("priv_vfs_chmod_fother(asroot, injail)", error, 0, 0);
+	if (asroot && !injail)
+		expect("priv_vfs_chmod_fother(asroot, !injail)", error, 0,
+		    0);
+	if (!asroot && injail)
+		expect("priv_vfs_chmod_fother(!asroot, injail)", error, -1,
+		    EPERM);
+	if (!asroot && !injail)
+		expect("priv_vfs_chmod_fother(!asroot, !injail)", error, -1,
+		    EPERM);
+}
+
+void
+priv_vfs_chmod_cleanup(int asroot, int injail, struct test *test)
+{
+
+	if (fpath_initialized) {
+		(void)unlink(fpath);
+		fpath_initialized = 0;
+	}
+}