373 lines
11 KiB
C
373 lines
11 KiB
C
/**
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* Copyright © 2009 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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/*
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* Protocol testing for XISelectEvents request.
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*
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* Test approach:
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*
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* Wrap XISetEventMask to intercept when the server tries to apply the event
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* mask. Ensure that the mask passed in is equivalent to the one supplied by
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* the client. Ensure that invalid devices and invalid masks return errors
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* as appropriate.
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*
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* Tests included:
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* BadValue for num_masks < 0
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* BadWindow for invalid windows
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* BadDevice for non-existing devices
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* BadImplemenation for devices >= 0xFF
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* BadValue if HierarchyChanged bit is set for devices other than
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* XIAllDevices
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* BadValue for invalid mask bits
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* Sucecss for excessive mask lengths
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*
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*/
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#include <stdint.h>
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#include <X11/X.h>
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#include <X11/Xproto.h>
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#include <X11/extensions/XI2proto.h>
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#include "inputstr.h"
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#include "windowstr.h"
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#include "extinit.h" /* for XInputExtensionInit */
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#include "scrnintstr.h"
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#include "exglobals.h"
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#include "xiselectev.h"
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#include "protocol-common.h"
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static unsigned char *data[4096 * 20]; /* the request data buffer */
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extern ClientRec client_window;
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int
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__real_XISetEventMask(DeviceIntPtr dev, WindowPtr win, ClientPtr client,
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int len, unsigned char *mask);
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int
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__wrap_XISetEventMask(DeviceIntPtr dev, WindowPtr win, ClientPtr client,
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int len, unsigned char *mask)
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{
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if (!enable_XISetEventMask_wrap)
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return __real_XISetEventMask(dev, win, client, len, mask);
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return Success;
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}
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static void
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request_XISelectEvent(xXISelectEventsReq * req, int error)
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{
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int i;
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int rc;
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ClientRec client;
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xXIEventMask *mask, *next;
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req->length = (sz_xXISelectEventsReq / 4);
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mask = (xXIEventMask *) &req[1];
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for (i = 0; i < req->num_masks; i++) {
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req->length += sizeof(xXIEventMask) / 4 + mask->mask_len;
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mask = (xXIEventMask *) ((char *) &mask[1] + mask->mask_len * 4);
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}
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client = init_client(req->length, req);
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rc = ProcXISelectEvents(&client);
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assert(rc == error);
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client.swapped = TRUE;
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mask = (xXIEventMask *) &req[1];
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for (i = 0; i < req->num_masks; i++) {
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next = (xXIEventMask *) ((char *) &mask[1] + mask->mask_len * 4);
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swaps(&mask->deviceid);
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swaps(&mask->mask_len);
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mask = next;
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}
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swapl(&req->win);
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swaps(&req->length);
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swaps(&req->num_masks);
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rc = SProcXISelectEvents(&client);
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assert(rc == error);
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}
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static void
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_set_bit(unsigned char *bits, int bit)
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{
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SetBit(bits, bit);
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if (bit >= XI_TouchBegin && bit <= XI_TouchOwnership) {
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SetBit(bits, XI_TouchBegin);
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SetBit(bits, XI_TouchUpdate);
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SetBit(bits, XI_TouchEnd);
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}
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if (bit >= XI_GesturePinchBegin && bit <= XI_GesturePinchEnd) {
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SetBit(bits, XI_GesturePinchBegin);
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SetBit(bits, XI_GesturePinchUpdate);
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SetBit(bits, XI_GesturePinchEnd);
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}
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if (bit >= XI_GestureSwipeBegin && bit <= XI_GestureSwipeEnd) {
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SetBit(bits, XI_GestureSwipeBegin);
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SetBit(bits, XI_GestureSwipeUpdate);
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SetBit(bits, XI_GestureSwipeEnd);
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}
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}
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static void
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_clear_bit(unsigned char *bits, int bit)
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{
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ClearBit(bits, bit);
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if (bit >= XI_TouchBegin && bit <= XI_TouchOwnership) {
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ClearBit(bits, XI_TouchBegin);
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ClearBit(bits, XI_TouchUpdate);
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ClearBit(bits, XI_TouchEnd);
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}
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if (bit >= XI_GesturePinchBegin && bit <= XI_GesturePinchEnd) {
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ClearBit(bits, XI_GesturePinchBegin);
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ClearBit(bits, XI_GesturePinchUpdate);
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ClearBit(bits, XI_GesturePinchEnd);
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}
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if (bit >= XI_GestureSwipeBegin && bit <= XI_GestureSwipeEnd) {
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ClearBit(bits, XI_GestureSwipeBegin);
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ClearBit(bits, XI_GestureSwipeUpdate);
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ClearBit(bits, XI_GestureSwipeEnd);
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}
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}
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static void
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request_XISelectEvents_masks(xXISelectEventsReq * req)
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{
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int i, j;
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xXIEventMask *mask;
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int nmasks = XI2MASKSIZE;
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unsigned char *bits;
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mask = (xXIEventMask *) &req[1];
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req->win = ROOT_WINDOW_ID;
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/* if a clients submits more than 100 masks, consider it insane and untested */
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for (i = 1; i <= 1000; i++) {
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req->num_masks = i;
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mask->deviceid = XIAllDevices;
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/* Test 0:
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* mask_len is 0 -> Success
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*/
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mask->mask_len = 0;
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request_XISelectEvent(req, Success);
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/* Test 1:
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* mask may be larger than needed for XI2LASTEVENT.
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* Test setting each valid mask bit, while leaving unneeded bits 0.
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* -> Success
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = (nmasks + 3) / 4 * 10;
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memset(bits, 0, mask->mask_len * 4);
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for (j = 0; j <= XI2LASTEVENT; j++) {
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_set_bit(bits, j);
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request_XISelectEvent(req, Success);
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_clear_bit(bits, j);
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}
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/* Test 2:
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* mask may be larger than needed for XI2LASTEVENT.
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* Test setting all valid mask bits, while leaving unneeded bits 0.
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* -> Success
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = (nmasks + 3) / 4 * 10;
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memset(bits, 0, mask->mask_len * 4);
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for (j = 0; j <= XI2LASTEVENT; j++) {
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_set_bit(bits, j);
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request_XISelectEvent(req, Success);
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}
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/* Test 3:
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* mask is larger than needed for XI2LASTEVENT. If any unneeded bit
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* is set -> BadValue
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = (nmasks + 3) / 4 * 10;
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memset(bits, 0, mask->mask_len * 4);
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for (j = XI2LASTEVENT + 1; j < mask->mask_len * 4; j++) {
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_set_bit(bits, j);
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request_XISelectEvent(req, BadValue);
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_clear_bit(bits, j);
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}
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/* Test 4:
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* Mask len is a sensible length, only valid bits are set -> Success
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = (nmasks + 3) / 4;
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memset(bits, 0, mask->mask_len * 4);
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for (j = 0; j <= XI2LASTEVENT; j++) {
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_set_bit(bits, j);
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request_XISelectEvent(req, Success);
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}
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/* Test 5:
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* Mask len is 1 and XI_GestureSwipeEnd is set outside the mask.
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* That bit should be ignored -> Success
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = 1;
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memset(bits, 0, 5);
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SetBit(bits, XI_ButtonPress); // does not matter which one
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SetBit(bits, XI_GestureSwipeEnd);
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request_XISelectEvent(req, Success);
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/* Test 6:
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* HierarchyChanged bit is BadValue for devices other than
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* XIAllDevices
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = (nmasks + 3) / 4;
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memset(bits, 0, mask->mask_len * 4);
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SetBit(bits, XI_HierarchyChanged);
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mask->deviceid = XIAllDevices;
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request_XISelectEvent(req, Success);
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for (j = 1; j < devices.num_devices; j++) {
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mask->deviceid = j;
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request_XISelectEvent(req, BadValue);
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}
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/* Test 7:
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* All bits set minus hierarchy changed bit -> Success
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*/
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bits = (unsigned char *) &mask[1];
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mask->mask_len = (nmasks + 3) / 4;
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memset(bits, 0, mask->mask_len * 4);
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for (j = 0; j <= XI2LASTEVENT; j++)
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_set_bit(bits, j);
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_clear_bit(bits, XI_HierarchyChanged);
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for (j = 1; j < 6; j++) {
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mask->deviceid = j;
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request_XISelectEvent(req, Success);
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}
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mask =
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(xXIEventMask *) ((char *) mask + sizeof(xXIEventMask) +
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mask->mask_len * 4);
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}
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}
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static void
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test_XISelectEvents(void)
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{
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int i;
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xXIEventMask *mask;
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xXISelectEventsReq *req;
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req = (xXISelectEventsReq *) data;
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request_init(req, XISelectEvents);
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printf("Testing for BadValue on zero-length masks\n");
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/* zero masks are BadValue, regardless of the window */
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req->num_masks = 0;
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req->win = None;
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request_XISelectEvent(req, BadValue);
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req->win = ROOT_WINDOW_ID;
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request_XISelectEvent(req, BadValue);
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req->win = CLIENT_WINDOW_ID;
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request_XISelectEvent(req, BadValue);
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printf("Testing for BadWindow.\n");
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/* None window is BadWindow, regardless of the masks.
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* We don't actually need to set the masks here, BadWindow must occur
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* before checking the masks.
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*/
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req->win = None;
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req->num_masks = 1;
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request_XISelectEvent(req, BadWindow);
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req->num_masks = 2;
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request_XISelectEvent(req, BadWindow);
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req->num_masks = 0xFF;
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request_XISelectEvent(req, BadWindow);
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/* request size is 3, so 0xFFFC is the highest num_mask that doesn't
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* overflow req->length */
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req->num_masks = 0xFFFC;
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request_XISelectEvent(req, BadWindow);
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printf("Triggering num_masks/length overflow\n");
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req->win = ROOT_WINDOW_ID;
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/* Integer overflow - req->length can't hold that much */
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req->num_masks = 0xFFFF;
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request_XISelectEvent(req, BadLength);
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req->win = ROOT_WINDOW_ID;
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req->num_masks = 1;
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printf("Triggering bogus mask length error\n");
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mask = (xXIEventMask *) &req[1];
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mask->deviceid = 0;
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mask->mask_len = 0xFFFF;
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request_XISelectEvent(req, BadLength);
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/* testing various device ids */
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printf("Testing existing device ids.\n");
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for (i = 0; i < 6; i++) {
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mask = (xXIEventMask *) &req[1];
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mask->deviceid = i;
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mask->mask_len = 1;
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req->win = ROOT_WINDOW_ID;
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req->num_masks = 1;
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request_XISelectEvent(req, Success);
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}
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printf("Testing non-existing device ids.\n");
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for (i = 6; i <= 0xFFFF; i++) {
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req->win = ROOT_WINDOW_ID;
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req->num_masks = 1;
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mask = (xXIEventMask *) &req[1];
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mask->deviceid = i;
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mask->mask_len = 1;
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request_XISelectEvent(req, BadDevice);
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}
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request_XISelectEvents_masks(req);
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}
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int
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protocol_xiselectevents_test(void)
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{
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init_simple();
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test_XISelectEvents();
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return 0;
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}
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