1 #!/bin/env python3
2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
4 #
5 # Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 # Copyright (c) 2017 Red Hat, Inc.
7 #
8 # This program is free software: you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
12 #
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
17 #
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #
21
22 # This is for generic devices
23
24 from . import base
25 import logging
26
27 logger = logging.getLogger("hidtools.test.hid")
28
29
30 class TestCollectionOverflow(base.BaseTestCase.TestUhid):
31 """
32 Test class to test re-allocation of the HID collection stack in
33 hid-core.c.
34 """
35
36 def create_device(self):
37 # fmt: off
38 report_descriptor = [
39 0x05, 0x01, # .Usage Page (Generic Desktop)
40 0x09, 0x02, # .Usage (Mouse)
41 0xa1, 0x01, # .Collection (Application)
42 0x09, 0x02, # ..Usage (Mouse)
43 0xa1, 0x02, # ..Collection (Logical)
44 0x09, 0x01, # ...Usage (Pointer)
45 0xa1, 0x00, # ...Collection (Physical)
46 0x05, 0x09, # ....Usage Page (Button)
47 0x19, 0x01, # ....Usage Minimum (1)
48 0x29, 0x03, # ....Usage Maximum (3)
49 0x15, 0x00, # ....Logical Minimum (0)
50 0x25, 0x01, # ....Logical Maximum (1)
51 0x75, 0x01, # ....Report Size (1)
52 0x95, 0x03, # ....Report Count (3)
53 0x81, 0x02, # ....Input (Data,Var,Abs)
54 0x75, 0x05, # ....Report Size (5)
55 0x95, 0x01, # ....Report Count (1)
56 0x81, 0x03, # ....Input (Cnst,Var,Abs)
57 0xa1, 0x02, # ....Collection (Logical)
58 0x09, 0x01, # .....Usage (Pointer)
59 0xa1, 0x02, # ....Collection (Logical)
60 0x09, 0x01, # .....Usage (Pointer)
61 0xa1, 0x02, # ....Collection (Logical)
62 0x09, 0x01, # .....Usage (Pointer)
63 0xa1, 0x02, # ....Collection (Logical)
64 0x09, 0x01, # .....Usage (Pointer)
65 0xa1, 0x02, # ....Collection (Logical)
66 0x09, 0x01, # .....Usage (Pointer)
67 0xa1, 0x02, # ....Collection (Logical)
68 0x09, 0x01, # .....Usage (Pointer)
69 0xa1, 0x02, # ....Collection (Logical)
70 0x09, 0x01, # .....Usage (Pointer)
71 0xa1, 0x02, # ....Collection (Logical)
72 0x09, 0x01, # .....Usage (Pointer)
73 0xa1, 0x02, # ....Collection (Logical)
74 0x09, 0x01, # .....Usage (Pointer)
75 0xa1, 0x02, # ....Collection (Logical)
76 0x09, 0x01, # .....Usage (Pointer)
77 0xa1, 0x02, # ....Collection (Logical)
78 0x09, 0x01, # .....Usage (Pointer)
79 0xa1, 0x02, # ....Collection (Logical)
80 0x09, 0x01, # .....Usage (Pointer)
81 0xa1, 0x02, # ....Collection (Logical)
82 0x09, 0x01, # .....Usage (Pointer)
83 0xa1, 0x02, # ....Collection (Logical)
84 0x09, 0x01, # .....Usage (Pointer)
85 0xa1, 0x02, # ....Collection (Logical)
86 0x09, 0x01, # .....Usage (Pointer)
87 0xa1, 0x02, # ....Collection (Logical)
88 0x09, 0x01, # .....Usage (Pointer)
89 0xa1, 0x02, # ....Collection (Logical)
90 0x09, 0x01, # .....Usage (Pointer)
91 0x05, 0x01, # .....Usage Page (Generic Desktop)
92 0x09, 0x30, # .....Usage (X)
93 0x09, 0x31, # .....Usage (Y)
94 0x15, 0x81, # .....Logical Minimum (-127)
95 0x25, 0x7f, # .....Logical Maximum (127)
96 0x75, 0x08, # .....Report Size (8)
97 0x95, 0x02, # .....Report Count (2)
98 0x81, 0x06, # .....Input (Data,Var,Rel)
99 0xa1, 0x02, # ...Collection (Logical)
100 0x85, 0x12, # ....Report ID (18)
101 0x09, 0x48, # ....Usage (Resolution Multiplier)
102 0x95, 0x01, # ....Report Count (1)
103 0x75, 0x02, # ....Report Size (2)
104 0x15, 0x00, # ....Logical Minimum (0)
105 0x25, 0x01, # ....Logical Maximum (1)
106 0x35, 0x01, # ....Physical Minimum (1)
107 0x45, 0x0c, # ....Physical Maximum (12)
108 0xb1, 0x02, # ....Feature (Data,Var,Abs)
109 0x85, 0x1a, # ....Report ID (26)
110 0x09, 0x38, # ....Usage (Wheel)
111 0x35, 0x00, # ....Physical Minimum (0)
112 0x45, 0x00, # ....Physical Maximum (0)
113 0x95, 0x01, # ....Report Count (1)
114 0x75, 0x10, # ....Report Size (16)
115 0x16, 0x01, 0x80, # ....Logical Minimum (-32767)
116 0x26, 0xff, 0x7f, # ....Logical Maximum (32767)
117 0x81, 0x06, # ....Input (Data,Var,Rel)
118 0xc0, # ...End Collection
119 0xc0, # ...End Collection
120 0xc0, # ...End Collection
121 0xc0, # ...End Collection
122 0xc0, # ...End Collection
123 0xc0, # ...End Collection
124 0xc0, # ...End Collection
125 0xc0, # ...End Collection
126 0xc0, # ...End Collection
127 0xc0, # ...End Collection
128 0xc0, # ...End Collection
129 0xc0, # ...End Collection
130 0xc0, # ...End Collection
131 0xc0, # ...End Collection
132 0xc0, # ...End Collection
133 0xc0, # ...End Collection
134 0xc0, # ...End Collection
135 0xc0, # ...End Collection
136 0xc0, # ...End Collection
137 0xc0, # ..End Collection
138 0xc0, # .End Collection
139 ]
140 # fmt: on
141 return base.UHIDTestDevice(
142 name=None, rdesc=report_descriptor, application="Mouse"
143 )
144
145 def test_rdesc(self):
146 """
147 This test can only check for negatives. If the kernel crashes, you
148 know why. If this test passes, either the bug isn't present or just
149 didn't get triggered. No way to know.
150
151 For an explanation, see kernel patch
152 HID: core: replace the collection tree pointers with indices
153 """
154 pass
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