From: Daniel Stone <dani...@collabora.com>

Mirroring addfb2, add tests for the new ioctl which will return us
information about framebuffers containing multiple buffers, as well as
modifiers.

Changes since v3:
- Add subtests to ensure handles aren't returned for non-root and
  non-master callers
- Fix getfb2-handle-not-fb to use getfb2

Changes since v1:
- Add test that uses getfb2 output to call addfb2 as suggested by Ville

Signed-off-by: Daniel Stone <dani...@collabora.com>
Signed-off-by: Juston Li <juston...@intel.com>
---
 tests/kms_getfb.c | 160 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)

diff --git a/tests/kms_getfb.c b/tests/kms_getfb.c
index ca0b01c05e5c..ffd8f9117c92 100644
--- a/tests/kms_getfb.c
+++ b/tests/kms_getfb.c
@@ -40,6 +40,8 @@
 #include "drm.h"
 #include "drm_fourcc.h"
 
+#include "igt_device.h"
+
 static bool has_getfb_iface(int fd)
 {
        struct drm_mode_fb_cmd arg = { };
@@ -228,6 +230,158 @@ static void test_duplicate_handles(int fd)
        }
 }
 
+static void test_getfb2(int fd)
+{
+       struct drm_mode_fb_cmd2 add_basic = {};
+
+       igt_fixture {
+               struct drm_mode_fb_cmd2 get = {};
+
+               add_basic.width = 1024;
+               add_basic.height = 1024;
+               add_basic.pixel_format = DRM_FORMAT_XRGB8888;
+               add_basic.pitches[0] = 1024*4;
+               add_basic.handles[0] = igt_create_bo_with_dimensions(fd, 1024, 
1024,
+                       DRM_FORMAT_XRGB8888, 0, 0, NULL, NULL, NULL);
+               igt_assert(add_basic.handles[0]);
+               do_ioctl(fd, DRM_IOCTL_MODE_ADDFB2, &add_basic);
+
+               get.fb_id = add_basic.fb_id;
+               do_ioctl(fd, DRM_IOCTL_MODE_GETFB2, &get);
+               igt_assert_neq_u32(get.handles[0], 0);
+               gem_close(fd, get.handles[0]);
+       }
+
+       igt_subtest("getfb2-handle-zero") {
+               struct drm_mode_fb_cmd2 get = {};
+               do_ioctl_err(fd, DRM_IOCTL_MODE_GETFB2, &get, ENOENT);
+       }
+
+       igt_subtest("getfb2-handle-closed") {
+               struct drm_mode_fb_cmd2 add = add_basic;
+               struct drm_mode_fb_cmd2 get = { };
+
+               add.handles[0] = igt_create_bo_with_dimensions(fd, 1024, 1024,
+                       DRM_FORMAT_XRGB8888, 0, 0, NULL, NULL, NULL);
+               igt_assert(add.handles[0]);
+               do_ioctl(fd, DRM_IOCTL_MODE_ADDFB2, &add);
+               do_ioctl(fd, DRM_IOCTL_MODE_RMFB, &add.fb_id);
+
+               get.fb_id = add.fb_id;
+               do_ioctl_err(fd, DRM_IOCTL_MODE_GETFB2, &get, ENOENT);
+               gem_close(fd, add.handles[0]);
+       }
+
+       igt_subtest("getfb2-handle-not-fb") {
+               struct drm_mode_fb_cmd2 get = { .fb_id = get_any_prop_id(fd) };
+               igt_require(get.fb_id > 0);
+               do_ioctl_err(fd, DRM_IOCTL_MODE_GETFB2, &get, ENOENT);
+       }
+
+       igt_subtest("getfb2-accept-ccs") {
+               struct drm_mode_fb_cmd2 add_ccs = { };
+               struct drm_mode_fb_cmd2 get = { };
+               int i;
+
+               get_ccs_fb(fd, &add_ccs);
+               igt_require(add_ccs.fb_id != 0);
+               get.fb_id = add_ccs.fb_id;
+               do_ioctl(fd, DRM_IOCTL_MODE_GETFB2, &get);
+
+               igt_assert_eq_u32(get.width, add_ccs.width);
+               igt_assert_eq_u32(get.height, add_ccs.height);
+               igt_assert(get.flags & DRM_MODE_FB_MODIFIERS);
+
+               for (i = 0; i < ARRAY_SIZE(get.handles); i++) {
+                       igt_assert_eq_u32(get.pitches[i], add_ccs.pitches[i]);
+                       igt_assert_eq_u32(get.offsets[i], add_ccs.offsets[i]);
+                       if (add_ccs.handles[i] != 0) {
+                               igt_assert_neq_u32(get.handles[i], 0);
+                               igt_assert_neq_u32(get.handles[i],
+                                                  add_ccs.handles[i]);
+                               igt_assert_eq_u64(get.modifier[i],
+                                                 add_ccs.modifier[i]);
+                       } else {
+                               igt_assert_eq_u32(get.handles[i], 0);
+                               igt_assert_eq_u64(get.modifier[i], 0);
+                       }
+               }
+               igt_assert_eq_u32(get.handles[0], get.handles[1]);
+
+               do_ioctl(fd, DRM_IOCTL_MODE_RMFB, &get.fb_id);
+               gem_close(fd, add_ccs.handles[0]);
+               gem_close(fd, get.handles[0]);
+       }
+
+       igt_subtest("getfb2-into-addfb2") {
+               struct drm_mode_fb_cmd2 cmd = { };
+
+               cmd.fb_id = add_basic.fb_id;
+               do_ioctl(fd, DRM_IOCTL_MODE_GETFB2, &cmd);
+               do_ioctl(fd, DRM_IOCTL_MODE_ADDFB2, &cmd);
+
+               do_ioctl(fd, DRM_IOCTL_MODE_RMFB, &cmd.fb_id);
+               gem_close(fd, cmd.handles[0]);
+       }
+
+       igt_fixture {
+               do_ioctl(fd, DRM_IOCTL_MODE_RMFB, &add_basic.fb_id);
+               gem_close(fd, add_basic.handles[0]);
+       }
+}
+
+static void test_handle_protection(void) {
+       int non_master_fd;
+       struct drm_mode_fb_cmd2 non_master_add = {};
+
+       igt_fixture {
+               non_master_fd = drm_open_driver(DRIVER_ANY);
+
+               non_master_add.width = 1024;
+               non_master_add.height = 1024;
+               non_master_add.pixel_format = DRM_FORMAT_XRGB8888;
+               non_master_add.pitches[0] = 1024*4;
+               non_master_add.handles[0] = 
igt_create_bo_with_dimensions(non_master_fd, 1024, 1024,
+                       DRM_FORMAT_XRGB8888, 0, 0, NULL, NULL, NULL);
+               igt_require(non_master_add.handles[0] != 0);
+               do_ioctl(non_master_fd, DRM_IOCTL_MODE_ADDFB2, &non_master_add);
+       }
+
+       igt_subtest("getfb-handle-protection") {
+               struct drm_mode_fb_cmd get = { .fb_id = non_master_add.fb_id};
+
+               igt_fork(child, 1) {
+                       igt_drop_root();
+
+                       do_ioctl(non_master_fd, DRM_IOCTL_MODE_GETFB, &get);
+                       /* ioctl succeeds but handle should be 0 */
+                       igt_assert_eq_u32(get.handle, 0);
+               }
+               igt_waitchildren();
+       }
+
+       igt_subtest("getfb2-handle-protection") {
+               struct drm_mode_fb_cmd2 get = { .fb_id = non_master_add.fb_id};
+               int i;
+
+               igt_fork(child, 1) {
+                       igt_drop_root();
+
+                       do_ioctl(non_master_fd, DRM_IOCTL_MODE_GETFB2, &get);
+                       /* ioctl succeeds but handles should be 0 */
+                       for (i = 0; i < ARRAY_SIZE(get.handles); i++) {
+                               igt_assert_eq_u32(get.handles[i], 0);
+                       }
+               }
+               igt_waitchildren();
+       }
+
+       igt_fixture {
+               do_ioctl(non_master_fd, DRM_IOCTL_MODE_RMFB, 
&non_master_add.fb_id);
+               gem_close(non_master_fd, non_master_add.handles[0]);
+       }
+}
+
 igt_main
 {
        int fd;
@@ -243,6 +397,12 @@ igt_main
        igt_subtest_group
                test_duplicate_handles(fd);
 
+       igt_subtest_group
+               test_getfb2(fd);
+
+       igt_subtest_group
+               test_handle_protection();
+
        igt_fixture
                close(fd);
 }
-- 
2.21.0

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