tests: Add core_setmaster_vs_auth.c

Embarrasingly I noticed that I need to git add the file when resolving
the conflict and manually applying my patch. But then I added the
wrong file ... Reported by Thomas Wood.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 73 insertions, 0 deletions

diff --git a/tests/core_setmaster_vs_auth.c b/tests/core_setmaster_vs_auth.c
new file mode 100644
index 00000000..efb27b17
--- /dev/null
+++ b/tests/core_setmaster_vs_auth.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ * Based upon a test program provided by Thomas Hellstrom <thellstrom@vmware.com>
+ */
+
+/*
+ * Testcase: Check that drop/setMaster correctly transfer master state
+ *
+ * Test approach is only checking auth state (which is part of master state) by
+ * trying to authenticate a client against the wrong master.
+ */
+
+#define _GNU_SOURCE
+#include "igt.h"
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#ifdef __linux__
+# include <sys/syscall.h>
+#else
+# include <pthread.h>
+#endif
+
+igt_main
+{
+	int master1, master2, client;
+	drm_magic_t magic;
+
+	master1 = drm_open_driver(DRIVER_ANY);
+	do_or_die(drmSetMaster(master1));
+
+	/* Get an authentication magic from the first master */
+	client = drm_open_driver(DRIVER_ANY);
+	do_or_die(drmGetMagic(client, &magic));
+
+	/* Open an fd an make it master */
+	master2 = drm_open_driver(DRIVER_ANY);
+	do_or_die(drmDropMaster(master1));
+	do_or_die(drmSetMaster(master2));
+
+	/* Auth shouldn't work since we're authenticating with a different
+	 * master than the one we got the magic from. */
+	igt_assert_neq(drmAuthMagic(master2, magic), 0);
+	igt_assert_eq(errno, EINVAL);
+
+	close(client);
+	close(master2);
+	close(master1);
+}