339 lines
9.8 KiB
C
339 lines
9.8 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 "xiselectev.h"
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#include "protocol-common.h"
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#include <glib.h>
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static unsigned char *data[4096 * 20]; /* the request data buffer */
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int __wrap_XISetEventMask(DeviceIntPtr dev, WindowPtr win, int len, unsigned char* mask)
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{
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return Success;
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}
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/* dixLookupWindow requires a lot of setup not necessary for this test.
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* Simple wrapper that returns either one of the fake root window or the
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* fake client window. If the requested ID is neither of those wanted,
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* return whatever the real dixLookupWindow does.
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*/
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int __wrap_dixLookupWindow(WindowPtr *win, XID id, ClientPtr client, Mask access)
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{
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if (id == root.drawable.id)
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{
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*win = &root;
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return Success;
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} else if (id == window.drawable.id)
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{
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*win = &window;
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return Success;
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}
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return __real_dixLookupWindow(win, id, client, access);
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}
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static void request_XISelectEvent(xXISelectEventsReq *req, int error)
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{
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char n;
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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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{
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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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g_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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{
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next = (xXIEventMask*)((char*)&mask[1] + mask->mask_len * 4);
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swaps(&mask->deviceid, n);
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swaps(&mask->mask_len, n);
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mask = next;
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}
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swapl(&req->win, n);
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swaps(&req->length, n);
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swaps(&req->num_masks, n);
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rc = SProcXISelectEvents(&client);
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g_assert(rc == error);
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}
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static void 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 = (XI_LASTEVENT + 7)/8;
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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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{
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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 XI_LASTEVENT.
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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 <= XI_LASTEVENT; j++)
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{
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SetBit(bits, j);
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request_XISelectEvent(req, Success);
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ClearBit(bits, j);
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}
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/* Test 2:
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* mask may be larger than needed for XI_LASTEVENT.
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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 <= XI_LASTEVENT; j++)
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{
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SetBit(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 XI_LASTEVENT. 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 = XI_LASTEVENT + 1; j < mask->mask_len * 4; j++)
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{
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SetBit(bits, j);
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request_XISelectEvent(req, BadValue);
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ClearBit(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 <= XI_LASTEVENT; j++)
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{
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SetBit(bits, j);
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request_XISelectEvent(req, Success);
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}
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/* Test 5:
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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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{
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mask->deviceid = j;
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request_XISelectEvent(req, BadValue);
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}
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/* Test 6:
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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 <= XI_LASTEVENT; j++)
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SetBit(bits, j);
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ClearBit(bits, XI_HierarchyChanged);
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for (j = 1; j < 6; j++)
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{
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mask->deviceid = j;
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request_XISelectEvent(req, Success);
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}
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mask = (xXIEventMask*)((char*)mask + sizeof(xXIEventMask) + mask->mask_len * 4);
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}
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}
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static void 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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g_test_message("Testing for BadValue on zero-length masks");
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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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g_test_message("Testing for BadWindow.");
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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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g_test_message("Triggering num_masks/length overflow");
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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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g_test_message("Triggering bogus mask length error");
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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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g_test_message("Testing existing device ids.");
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for (i = 0; i < 6; i++)
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{
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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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g_test_message("Testing non-existing device ids.");
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for (i = 6; i <= 0xFFFF; i++)
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{
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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 main(int argc, char** argv)
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{
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g_test_init(&argc, &argv,NULL);
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g_test_bug_base("https://bugzilla.freedesktop.org/show_bug.cgi?id=");
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init_simple();
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g_test_add_func("/xi2/protocol/XISelectEvents", test_XISelectEvents);
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return g_test_run();
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}
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