blob: 970bbd041b17c2dc05d1f39f3278dda50d09e8aa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "device/usb/usb_device_filter.h"
#include "base/values.h"
#include "device/usb/usb_descriptors.h"
#include "device/usb/usb_device.h"
namespace device {
namespace {
const char kProductIdKey[] = "productId";
const char kVendorIdKey[] = "vendorId";
const char kInterfaceClassKey[] = "interfaceClass";
const char kInterfaceSubclassKey[] = "interfaceSubclass";
const char kInterfaceProtocolKey[] = "interfaceProtocol";
} // namespace
UsbDeviceFilter::UsbDeviceFilter()
: vendor_id_set_(false),
product_id_set_(false),
interface_class_set_(false),
interface_subclass_set_(false),
interface_protocol_set_(false) {
}
UsbDeviceFilter::~UsbDeviceFilter() {
}
void UsbDeviceFilter::SetVendorId(uint16 vendor_id) {
vendor_id_set_ = true;
vendor_id_ = vendor_id;
}
void UsbDeviceFilter::SetProductId(uint16 product_id) {
product_id_set_ = true;
product_id_ = product_id;
}
void UsbDeviceFilter::SetInterfaceClass(uint8 interface_class) {
interface_class_set_ = true;
interface_class_ = interface_class;
}
void UsbDeviceFilter::SetInterfaceSubclass(uint8 interface_subclass) {
interface_subclass_set_ = true;
interface_subclass_ = interface_subclass;
}
void UsbDeviceFilter::SetInterfaceProtocol(uint8 interface_protocol) {
interface_protocol_set_ = true;
interface_protocol_ = interface_protocol;
}
bool UsbDeviceFilter::Matches(scoped_refptr<UsbDevice> device) const {
if (vendor_id_set_) {
if (device->vendor_id() != vendor_id_) {
return false;
}
if (product_id_set_ && device->product_id() != product_id_) {
return false;
}
}
if (interface_class_set_) {
const UsbConfigDescriptor* config = device->GetConfiguration();
if (!config) {
return false;
}
// TODO(reillyg): Check device configuration if the class is not defined at
// a per-interface level. This is not really important because most devices
// have per-interface classes. The only counter-examples I know of are hubs.
bool foundMatch = false;
for (const UsbInterfaceDescriptor& iface : config->interfaces) {
if (iface.interface_class == interface_class_ &&
(!interface_subclass_set_ ||
(iface.interface_subclass == interface_subclass_ &&
(!interface_protocol_set_ ||
iface.interface_protocol == interface_protocol_)))) {
foundMatch = true;
}
}
if (!foundMatch) {
return false;
}
}
return true;
}
base::Value* UsbDeviceFilter::ToValue() const {
scoped_ptr<base::DictionaryValue> obj(new base::DictionaryValue());
if (vendor_id_set_) {
obj->SetInteger(kVendorIdKey, vendor_id_);
if (product_id_set_) {
obj->SetInteger(kProductIdKey, product_id_);
}
}
if (interface_class_set_) {
obj->SetInteger(kInterfaceClassKey, interface_class_);
if (interface_subclass_set_) {
obj->SetInteger(kInterfaceSubclassKey, interface_subclass_);
if (interface_protocol_set_) {
obj->SetInteger(kInterfaceProtocolKey, interface_protocol_);
}
}
}
return obj.release();
}
// static
bool UsbDeviceFilter::MatchesAny(scoped_refptr<UsbDevice> device,
const std::vector<UsbDeviceFilter>& filters) {
for (std::vector<UsbDeviceFilter>::const_iterator i = filters.begin();
i != filters.end();
++i) {
if (i->Matches(device)) {
return true;
}
}
return false;
}
} // namespace device
|
