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Side by Side Diff: components/proximity_auth/ble/bluetooth_low_energy_weave_packet_generator.cc

Issue 2096103003: Move weave packet to common location b/t generator and receiver (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: moved common enums to a namespace Created 4 years, 5 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "components/proximity_auth/ble/bluetooth_low_energy_weave_packet_genera tor.h" 5 #include "components/proximity_auth/ble/bluetooth_low_energy_weave_packet_genera tor.h"
6 6
7 #ifdef OS_WIN 7 #ifdef OS_WIN
8 #include <winsock2.h> 8 #include <winsock2.h>
9 #else 9 #else
10 #include <netinet/in.h> 10 #include <netinet/in.h>
11 #endif 11 #endif
12 12
13 #include <string.h> 13 #include <string.h>
14 14
15 #include <algorithm> 15 #include <algorithm>
16 16
17 #include "base/logging.h" 17 #include "base/logging.h"
18 18
19 namespace proximity_auth {
20 namespace weave {
19 namespace { 21 namespace {
20 22
21 typedef proximity_auth::BluetoothLowEnergyWeavePacketGenerator::Packet Packet;
22
23 const uint16_t kMinSupportedWeaveVersion = 1;
24 const uint16_t kMaxSupportedWeaveVersion = 1;
25 const uint16_t kServerWeaveVersion = 1;
26 const uint16_t kMinConnectionRequestSize = 7; 23 const uint16_t kMinConnectionRequestSize = 7;
27 const uint16_t kMinConnectionResponseSize = 5; 24 const uint16_t kMinConnectionResponseSize = 5;
28 const uint16_t kMinConnectionCloseSize = 3; 25 const uint16_t kMinConnectionCloseSize = 3;
29 const uint32_t kDefaultMaxPacketSize = 20;
30 // Max packet size is 0, which means defer the decision to the server.
31 const uint16_t kMaxSupportedPacketSize = 0;
32 const uint8_t kMaxPacketCounter = 8;
33 26
34 } // namespace 27 } // namespace
35 28
36 namespace proximity_auth {
37
38 // static. 29 // static.
39 BluetoothLowEnergyWeavePacketGenerator::Factory* 30 BluetoothLowEnergyWeavePacketGenerator::Factory*
40 BluetoothLowEnergyWeavePacketGenerator::Factory::factory_instance_ = 31 BluetoothLowEnergyWeavePacketGenerator::Factory::factory_instance_ =
41 nullptr; 32 nullptr;
42 33
43 // static. 34 // static.
44 std::unique_ptr<BluetoothLowEnergyWeavePacketGenerator> 35 std::unique_ptr<BluetoothLowEnergyWeavePacketGenerator>
45 BluetoothLowEnergyWeavePacketGenerator::Factory::NewInstance() { 36 BluetoothLowEnergyWeavePacketGenerator::Factory::NewInstance() {
46 if (factory_instance_ == nullptr) { 37 if (factory_instance_ == nullptr) {
47 factory_instance_ = new Factory(); 38 factory_instance_ = new Factory();
(...skipping 17 matching lines...) Expand all
65 : max_packet_size_(kDefaultMaxPacketSize), next_packet_counter_(0) {} 56 : max_packet_size_(kDefaultMaxPacketSize), next_packet_counter_(0) {}
66 57
67 Packet BluetoothLowEnergyWeavePacketGenerator::CreateConnectionRequest() { 58 Packet BluetoothLowEnergyWeavePacketGenerator::CreateConnectionRequest() {
68 Packet packet(kMinConnectionRequestSize, 0); 59 Packet packet(kMinConnectionRequestSize, 0);
69 60
70 SetPacketTypeBit(PacketType::CONTROL, &packet); 61 SetPacketTypeBit(PacketType::CONTROL, &packet);
71 // Since it only make sense for connection request to be the 0th packet, 62 // Since it only make sense for connection request to be the 0th packet,
72 // resets the packet counter. 63 // resets the packet counter.
73 next_packet_counter_ = 1; 64 next_packet_counter_ = 1;
74 SetControlCommand(ControlCommand::CONNECTION_REQUEST, &packet); 65 SetControlCommand(ControlCommand::CONNECTION_REQUEST, &packet);
75 SetShortField(1, kMinSupportedWeaveVersion, &packet); 66 SetShortField(1, kWeaveVersion, &packet);
76 SetShortField(3, kMaxSupportedWeaveVersion, &packet); 67 SetShortField(3, kWeaveVersion, &packet);
77 SetShortField(5, kMaxSupportedPacketSize, &packet); 68 SetShortField(5, kSelectMaxPacketSize, &packet);
78 69
79 return packet; 70 return packet;
80 } 71 }
81 72
82 Packet BluetoothLowEnergyWeavePacketGenerator::CreateConnectionResponse() { 73 Packet BluetoothLowEnergyWeavePacketGenerator::CreateConnectionResponse() {
83 Packet packet(kMinConnectionResponseSize, 0); 74 Packet packet(kMinConnectionResponseSize, 0);
84 75
85 SetPacketTypeBit(PacketType::CONTROL, &packet); 76 SetPacketTypeBit(PacketType::CONTROL, &packet);
86 // Since it only make sense for connection response to be the 0th packet, 77 // Since it only make sense for connection response to be the 0th packet,
87 // resets the next packet counter. 78 // resets the next packet counter.
88 next_packet_counter_ = 1; 79 next_packet_counter_ = 1;
89 SetControlCommand(ControlCommand::CONNECTION_RESPONSE, &packet); 80 SetControlCommand(ControlCommand::CONNECTION_RESPONSE, &packet);
90 SetShortField(1, kServerWeaveVersion, &packet); 81 SetShortField(1, kWeaveVersion, &packet);
91 SetShortField(3, max_packet_size_, &packet); 82 SetShortField(3, max_packet_size_, &packet);
92 83
93 return packet; 84 return packet;
94 } 85 }
95 86
96 Packet BluetoothLowEnergyWeavePacketGenerator::CreateConnectionClose( 87 Packet BluetoothLowEnergyWeavePacketGenerator::CreateConnectionClose(
97 ReasonForClose reason_for_close) { 88 ReasonForClose reason_for_close) {
98 Packet packet(kMinConnectionCloseSize, 0); 89 Packet packet(kMinConnectionCloseSize, 0);
99 90
100 SetPacketTypeBit(PacketType::CONTROL, &packet); 91 SetPacketTypeBit(PacketType::CONTROL, &packet);
(...skipping 104 matching lines...) Expand 10 before | Expand all | Expand 10 after
205 } 196 }
206 197
207 void BluetoothLowEnergyWeavePacketGenerator::SetDataLastBit(Packet* packet) { 198 void BluetoothLowEnergyWeavePacketGenerator::SetDataLastBit(Packet* packet) {
208 DCHECK(packet); 199 DCHECK(packet);
209 DCHECK(!packet->empty()); 200 DCHECK(!packet->empty());
210 201
211 // Last bit is the bit 2 of the packet's first byte and set it to 1. 202 // Last bit is the bit 2 of the packet's first byte and set it to 1.
212 packet->at(0) = packet->at(0) | (1 << 2); 203 packet->at(0) = packet->at(0) | (1 << 2);
213 } 204 }
214 205
206 } // namespace weave
215 } // namespace proximity_auth 207 } // namespace proximity_auth
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