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-rw-r--r--xorg-server/test/xi2/protocol-xiselectevents.c337
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diff --git a/xorg-server/test/xi2/protocol-xiselectevents.c b/xorg-server/test/xi2/protocol-xiselectevents.c
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+/**
+ * Copyright © 2009 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+/*
+ * Protocol testing for XISelectEvents request.
+ *
+ * Test approach:
+ *
+ * Wrap XISetEventMask to intercept when the server tries to apply the event
+ * mask. Ensure that the mask passed in is equivalent to the one supplied by
+ * the client. Ensure that invalid devices and invalid masks return errors
+ * as appropriate.
+ *
+ * Tests included:
+ * BadValue for num_masks < 0
+ * BadWindow for invalid windows
+ * BadDevice for non-existing devices
+ * BadImplemenation for devices >= 0xFF
+ * BadValue if HierarchyChanged bit is set for devices other than
+ * XIAllDevices
+ * BadValue for invalid mask bits
+ * Sucecss for excessive mask lengths
+ *
+ */
+
+#include <stdint.h>
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <X11/extensions/XI2proto.h>
+#include "inputstr.h"
+#include "windowstr.h"
+#include "extinit.h" /* for XInputExtensionInit */
+#include "scrnintstr.h"
+#include "xiselectev.h"
+
+#include "protocol-common.h"
+#include <glib.h>
+
+static unsigned char *data[4096 * 16]; /* the request data buffer */
+
+int __wrap_XISetEventMask(DeviceIntPtr dev, WindowPtr win, int len, unsigned char* mask)
+{
+ return Success;
+}
+
+/* dixLookupWindow requires a lot of setup not necessary for this test.
+ * Simple wrapper that returns either one of the fake root window or the
+ * fake client window. If the requested ID is neither of those wanted,
+ * return whatever the real dixLookupWindow does.
+ */
+int __wrap_dixLookupWindow(WindowPtr *win, XID id, ClientPtr client, Mask access)
+{
+ if (id == root.drawable.id)
+ {
+ *win = &root;
+ return Success;
+ } else if (id == window.drawable.id)
+ {
+ *win = &window;
+ return Success;
+ }
+
+ return __real_dixLookupWindow(win, id, client, access);
+}
+
+
+static void request_XISelectEvent(xXISelectEventsReq *req, int error)
+{
+ char n;
+ int i;
+ int rc;
+ ClientRec client;
+ xXIEventMask *mask, *next;
+
+ req->length = (sz_xXISelectEventsReq/4);
+ mask = (xXIEventMask*)&req[1];
+ for (i = 0; i < req->num_masks; i++)
+ {
+ req->length += sizeof(xXIEventMask)/4 + mask->mask_len;
+ mask = (xXIEventMask*)((char*)&mask[1] + mask->mask_len * 4);
+ }
+
+ client = init_client(req->length, req);
+
+ rc = ProcXISelectEvents(&client);
+ g_assert(rc == error);
+
+ client.swapped = TRUE;
+
+ mask = (xXIEventMask*)&req[1];
+ for (i = 0; i < req->num_masks; i++)
+ {
+ next = (xXIEventMask*)((char*)&mask[1] + mask->mask_len * 4);
+ swaps(&mask->deviceid, n);
+ swaps(&mask->mask_len, n);
+ mask = next;
+ }
+
+ swapl(&req->win, n);
+ swaps(&req->length, n);
+ swaps(&req->num_masks, n);
+ rc = SProcXISelectEvents(&client);
+ g_assert(rc == error);
+}
+
+static void request_XISelectEvents_masks(xXISelectEventsReq *req)
+{
+ int i, j;
+ xXIEventMask *mask;
+ int nmasks = (XI_LASTEVENT + 7)/8;
+ unsigned char *bits;
+
+ mask = (xXIEventMask*)&req[1];
+ req->win = ROOT_WINDOW_ID;
+
+ /* if a clients submits more than 100 masks, consider it insane and untested */
+ for (i = 1; i <= 1000; i++)
+ {
+ req->num_masks = i;
+ mask->deviceid = XIAllDevices;
+
+ /* Test 0:
+ * mask_len is 0 -> Success
+ */
+ mask->mask_len = 0;
+ request_XISelectEvent(req, Success);
+
+ /* Test 1:
+ * mask may be larger than needed for XI_LASTEVENT.
+ * Test setting each valid mask bit, while leaving unneeded bits 0.
+ * -> Success
+ */
+ bits = (unsigned char*)&mask[1];
+ mask->mask_len = (nmasks + 3)/4 * 10;
+ memset(bits, 0, mask->mask_len * 4);
+ for (j = 0; j <= XI_LASTEVENT; j++)
+ {
+ SetBit(bits, j);
+ request_XISelectEvent(req, Success);
+ ClearBit(bits, j);
+ }
+
+ /* Test 2:
+ * mask may be larger than needed for XI_LASTEVENT.
+ * Test setting all valid mask bits, while leaving unneeded bits 0.
+ * -> Success
+ */
+ bits = (unsigned char*)&mask[1];
+ mask->mask_len = (nmasks + 3)/4 * 10;
+ memset(bits, 0, mask->mask_len * 4);
+
+ for (j = 0; j <= XI_LASTEVENT; j++)
+ {
+ SetBit(bits, j);
+ request_XISelectEvent(req, Success);
+ }
+
+ /* Test 3:
+ * mask is larger than needed for XI_LASTEVENT. If any unneeded bit
+ * is set -> BadValue
+ */
+ bits = (unsigned char*)&mask[1];
+ mask->mask_len = (nmasks + 3)/4 * 10;
+ memset(bits, 0, mask->mask_len * 4);
+
+ for (j = XI_LASTEVENT + 1; j < mask->mask_len * 4; j++)
+ {
+ SetBit(bits, j);
+ request_XISelectEvent(req, BadValue);
+ ClearBit(bits, j);
+ }
+
+ /* Test 4:
+ * Mask len is a sensible length, only valid bits are set -> Success
+ */
+ bits = (unsigned char*)&mask[1];
+ mask->mask_len = (nmasks + 3)/4;
+ memset(bits, 0, mask->mask_len * 4);
+ for (j = 0; j <= XI_LASTEVENT; j++)
+ {
+ SetBit(bits, j);
+ request_XISelectEvent(req, Success);
+ }
+
+ /* Test 5:
+ * HierarchyChanged bit is BadValue for devices other than
+ * XIAllDevices
+ */
+ bits = (unsigned char*)&mask[1];
+ mask->mask_len = (nmasks + 3)/4;
+ memset(bits, 0, mask->mask_len * 4);
+ SetBit(bits, XI_HierarchyChanged);
+ mask->deviceid = XIAllDevices;
+ request_XISelectEvent(req, Success);
+ for (j = 1; j < devices.num_devices; j++)
+ {
+ mask->deviceid = j;
+ request_XISelectEvent(req, BadValue);
+ }
+
+ /* Test 6:
+ * All bits set minus hierarchy changed bit -> Success
+ */
+ bits = (unsigned char*)&mask[1];
+ mask->mask_len = (nmasks + 3)/4;
+ memset(bits, 0, mask->mask_len * 4);
+ for (j = 0; j <= XI_LASTEVENT; j++)
+ SetBit(bits, j);
+ ClearBit(bits, XI_HierarchyChanged);
+ for (j = 1; j < 6; j++)
+ {
+ mask->deviceid = j;
+ request_XISelectEvent(req, Success);
+ }
+
+ mask = (xXIEventMask*)((char*)mask + sizeof(xXIEventMask) + mask->mask_len * 4);
+ }
+}
+
+static void test_XISelectEvents(void)
+{
+ int i;
+ xXIEventMask *mask;
+ xXISelectEventsReq *req;
+ req = (xXISelectEventsReq*)data;
+
+ request_init(req, XISelectEvents);
+
+ g_test_message("Testing for BadValue on zero-length masks");
+ /* zero masks are BadValue, regardless of the window */
+ req->num_masks = 0;
+
+ req->win = None;
+ request_XISelectEvent(req, BadValue);
+
+ req->win = ROOT_WINDOW_ID;
+ request_XISelectEvent(req, BadValue);
+
+ req->win = CLIENT_WINDOW_ID;
+ request_XISelectEvent(req, BadValue);
+
+ g_test_message("Testing for BadWindow.");
+ /* None window is BadWindow, regardless of the masks.
+ * We don't actually need to set the masks here, BadWindow must occur
+ * before checking the masks.
+ */
+ req->win = None;
+ req->num_masks = 1;
+ request_XISelectEvent(req, BadWindow);
+
+ req->num_masks = 2;
+ request_XISelectEvent(req, BadWindow);
+
+ req->num_masks = 0xFF;
+ request_XISelectEvent(req, BadWindow);
+
+ /* request size is 3, so 0xFFFC is the highest num_mask that doesn't
+ * overflow req->length */
+ req->num_masks = 0xFFFC;
+ request_XISelectEvent(req, BadWindow);
+
+ g_test_message("Triggering num_masks/length overflow");
+ /* Integer overflow - req->length can't hold that much */
+ req->num_masks = 0xFFFF;
+ request_XISelectEvent(req, BadLength);
+
+ req->win = ROOT_WINDOW_ID;
+ req->num_masks = 1;
+
+ g_test_message("Triggering bogus mask length error");
+ mask = (xXIEventMask*)&req[1];
+ mask->deviceid = 0;
+ mask->mask_len = 0xFFFF;
+ request_XISelectEvent(req, BadLength);
+
+ /* testing various device ids */
+ g_test_message("Testing existing device ids.");
+ for (i = 0; i < 6; i++)
+ {
+ mask = (xXIEventMask*)&req[1];
+ mask->deviceid = i;
+ mask->mask_len = 1;
+ req->win = ROOT_WINDOW_ID;
+ req->num_masks = 1;
+ request_XISelectEvent(req, Success);
+ }
+
+ g_test_message("Testing non-existing device ids.");
+ for (i = 6; i <= 0xFFFF; i++)
+ {
+ req->win = ROOT_WINDOW_ID;
+ req->num_masks = 1;
+ mask = (xXIEventMask*)&req[1];
+ mask->deviceid = i;
+ mask->mask_len = 1;
+ request_XISelectEvent(req, BadDevice);
+ }
+
+ request_XISelectEvents_masks(req);
+}
+
+int main(int argc, char** argv)
+{
+ g_test_init(&argc, &argv,NULL);
+ g_test_bug_base("https://bugzilla.freedesktop.org/show_bug.cgi?id=");
+
+ init_simple();
+
+ g_test_add_func("/xi2/protocol/XISelectEvents", test_XISelectEvents);
+
+ return g_test_run();
+}
+
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