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
|
/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef P2P_BASE_P2P_CONSTANTS_H_
#define P2P_BASE_P2P_CONSTANTS_H_
#include <stddef.h>
#include <stdint.h>
#include "rtc_base/system/rtc_export.h"
namespace cricket {
// CN_ == "content name". When we initiate a session, we choose the
// name, and when we receive a Gingle session, we provide default
// names (since Gingle has no content names). But when we receive a
// Jingle call, the content name can be anything, so don't rely on
// these values being the same as the ones received.
extern const char CN_AUDIO[];
extern const char CN_VIDEO[];
extern const char CN_DATA[];
extern const char CN_OTHER[];
// GN stands for group name
extern const char GROUP_TYPE_BUNDLE[];
RTC_EXPORT extern const int ICE_UFRAG_LENGTH;
RTC_EXPORT extern const int ICE_PWD_LENGTH;
extern const size_t ICE_UFRAG_MIN_LENGTH;
extern const size_t ICE_PWD_MIN_LENGTH;
extern const size_t ICE_UFRAG_MAX_LENGTH;
extern const size_t ICE_PWD_MAX_LENGTH;
RTC_EXPORT extern const int ICE_CANDIDATE_COMPONENT_RTP;
RTC_EXPORT extern const int ICE_CANDIDATE_COMPONENT_RTCP;
RTC_EXPORT extern const int ICE_CANDIDATE_COMPONENT_DEFAULT;
// RFC 4145, SDP setup attribute values.
extern const char CONNECTIONROLE_ACTIVE_STR[];
extern const char CONNECTIONROLE_PASSIVE_STR[];
extern const char CONNECTIONROLE_ACTPASS_STR[];
extern const char CONNECTIONROLE_HOLDCONN_STR[];
// RFC 6762, the .local pseudo-top-level domain used for mDNS names.
extern const char LOCAL_TLD[];
// Constants for time intervals are in milliseconds unless otherwise stated.
//
// Most of the following constants are the default values of IceConfig
// paramters. See IceConfig for detailed definition.
//
// Default value of IceConfig.receiving_timeout.
extern const int RECEIVING_TIMEOUT;
// Default value IceConfig.ice_check_min_interval.
extern const int MIN_CHECK_RECEIVING_INTERVAL;
// The next two ping intervals are at the ICE transport level.
//
// STRONG_PING_INTERVAL is applied when the selected connection is both
// writable and receiving.
//
// Default value of IceConfig.ice_check_interval_strong_connectivity.
extern const int STRONG_PING_INTERVAL;
// WEAK_PING_INTERVAL is applied when the selected connection is either
// not writable or not receiving.
//
// Defaul value of IceConfig.ice_check_interval_weak_connectivity.
extern const int WEAK_PING_INTERVAL;
// The next two ping intervals are at the candidate pair level.
//
// Writable candidate pairs are pinged at a slower rate once they are stabilized
// and the channel is strongly connected.
extern const int STRONG_AND_STABLE_WRITABLE_CONNECTION_PING_INTERVAL;
// Writable candidate pairs are pinged at a faster rate while the connections
// are stabilizing or the channel is weak.
extern const int WEAK_OR_STABILIZING_WRITABLE_CONNECTION_PING_INTERVAL;
// Default value of IceConfig.backup_connection_ping_interval
extern const int BACKUP_CONNECTION_PING_INTERVAL;
// Defualt value of IceConfig.receiving_switching_delay.
extern const int RECEIVING_SWITCHING_DELAY;
// Default value of IceConfig.regather_on_failed_networks_interval.
extern const int REGATHER_ON_FAILED_NETWORKS_INTERVAL;
// Default vaule of IceConfig.ice_unwritable_timeout.
extern const int CONNECTION_WRITE_CONNECT_TIMEOUT;
// Default vaule of IceConfig.ice_unwritable_min_checks.
extern const uint32_t CONNECTION_WRITE_CONNECT_FAILURES;
// Default value of IceConfig.ice_inactive_timeout;
extern const int CONNECTION_WRITE_TIMEOUT;
// Default value of IceConfig.stun_keepalive_interval;
extern const int STUN_KEEPALIVE_INTERVAL;
static const int MIN_PINGS_AT_WEAK_PING_INTERVAL = 3;
// The following constants are used at the candidate pair level to determine the
// state of a candidate pair.
//
// The timeout duration when a connection does not receive anything.
extern const int WEAK_CONNECTION_RECEIVE_TIMEOUT;
// A connection will be declared dead if it has not received anything for this
// long.
extern const int DEAD_CONNECTION_RECEIVE_TIMEOUT;
// This is the length of time that we wait for a ping response to come back.
extern const int CONNECTION_RESPONSE_TIMEOUT;
// The minimum time we will wait before destroying a connection after creating
// it.
extern const int MIN_CONNECTION_LIFETIME;
// The type preference MUST be an integer from 0 to 126 inclusive.
// https://datatracker.ietf.org/doc/html/rfc5245#section-4.1.2.1
enum IcePriorityValue : uint8_t {
ICE_TYPE_PREFERENCE_RELAY_TLS = 0,
ICE_TYPE_PREFERENCE_RELAY_TCP = 1,
ICE_TYPE_PREFERENCE_RELAY_UDP = 2,
ICE_TYPE_PREFERENCE_PRFLX_TCP = 80,
ICE_TYPE_PREFERENCE_HOST_TCP = 90,
ICE_TYPE_PREFERENCE_SRFLX = 100,
ICE_TYPE_PREFERENCE_PRFLX = 110,
ICE_TYPE_PREFERENCE_HOST = 126
};
} // namespace cricket
#endif // P2P_BASE_P2P_CONSTANTS_H_
|
