You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
206 lines
7.5 KiB
206 lines
7.5 KiB
/*
|
|
* 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 API_CANDIDATE_H_
|
|
#define API_CANDIDATE_H_
|
|
|
|
#include <limits.h>
|
|
#include <stdint.h>
|
|
|
|
#include <algorithm>
|
|
#include <string>
|
|
|
|
#include "rtc_base/checks.h"
|
|
#include "rtc_base/network_constants.h"
|
|
#include "rtc_base/socket_address.h"
|
|
#include "rtc_base/system/rtc_export.h"
|
|
|
|
namespace cricket {
|
|
|
|
// Candidate for ICE based connection discovery.
|
|
// TODO(phoglund): remove things in here that are not needed in the public API.
|
|
|
|
class RTC_EXPORT Candidate {
|
|
public:
|
|
Candidate();
|
|
// TODO(pthatcher): Match the ordering and param list as per RFC 5245
|
|
// candidate-attribute syntax. http://tools.ietf.org/html/rfc5245#section-15.1
|
|
Candidate(int component,
|
|
const std::string& protocol,
|
|
const rtc::SocketAddress& address,
|
|
uint32_t priority,
|
|
const std::string& username,
|
|
const std::string& password,
|
|
const std::string& type,
|
|
uint32_t generation,
|
|
const std::string& foundation,
|
|
uint16_t network_id = 0,
|
|
uint16_t network_cost = 0);
|
|
Candidate(const Candidate&);
|
|
~Candidate();
|
|
|
|
const std::string& id() const { return id_; }
|
|
void set_id(const std::string& id) { id_ = id; }
|
|
|
|
int component() const { return component_; }
|
|
void set_component(int component) { component_ = component; }
|
|
|
|
const std::string& protocol() const { return protocol_; }
|
|
void set_protocol(const std::string& protocol) { protocol_ = protocol; }
|
|
|
|
// The protocol used to talk to relay.
|
|
const std::string& relay_protocol() const { return relay_protocol_; }
|
|
void set_relay_protocol(const std::string& protocol) {
|
|
relay_protocol_ = protocol;
|
|
}
|
|
|
|
const rtc::SocketAddress& address() const { return address_; }
|
|
void set_address(const rtc::SocketAddress& address) { address_ = address; }
|
|
|
|
uint32_t priority() const { return priority_; }
|
|
void set_priority(const uint32_t priority) { priority_ = priority; }
|
|
|
|
// TODO(pthatcher): Remove once Chromium's jingle/glue/utils.cc
|
|
// doesn't use it.
|
|
// Maps old preference (which was 0.0-1.0) to match priority (which
|
|
// is 0-2^32-1) to to match RFC 5245, section 4.1.2.1. Also see
|
|
// https://docs.google.com/a/google.com/document/d/
|
|
// 1iNQDiwDKMh0NQOrCqbj3DKKRT0Dn5_5UJYhmZO-t7Uc/edit
|
|
float preference() const {
|
|
// The preference value is clamped to two decimal precision.
|
|
return static_cast<float>(((priority_ >> 24) * 100 / 127) / 100.0);
|
|
}
|
|
|
|
// TODO(pthatcher): Remove once Chromium's jingle/glue/utils.cc
|
|
// doesn't use it.
|
|
void set_preference(float preference) {
|
|
// Limiting priority to UINT_MAX when value exceeds uint32_t max.
|
|
// This can happen for e.g. when preference = 3.
|
|
uint64_t prio_val = static_cast<uint64_t>(preference * 127) << 24;
|
|
priority_ = static_cast<uint32_t>(
|
|
std::min(prio_val, static_cast<uint64_t>(UINT_MAX)));
|
|
}
|
|
|
|
// TODO(honghaiz): Change to usernameFragment or ufrag.
|
|
const std::string& username() const { return username_; }
|
|
void set_username(const std::string& username) { username_ = username; }
|
|
|
|
const std::string& password() const { return password_; }
|
|
void set_password(const std::string& password) { password_ = password; }
|
|
|
|
const std::string& type() const { return type_; }
|
|
void set_type(const std::string& type) { type_ = type; }
|
|
|
|
const std::string& network_name() const { return network_name_; }
|
|
void set_network_name(const std::string& network_name) {
|
|
network_name_ = network_name;
|
|
}
|
|
|
|
rtc::AdapterType network_type() const { return network_type_; }
|
|
void set_network_type(rtc::AdapterType network_type) {
|
|
network_type_ = network_type;
|
|
}
|
|
|
|
// Candidates in a new generation replace those in the old generation.
|
|
uint32_t generation() const { return generation_; }
|
|
void set_generation(uint32_t generation) { generation_ = generation; }
|
|
|
|
// |network_cost| measures the cost/penalty of using this candidate. A network
|
|
// cost of 0 indicates this candidate can be used freely. A value of
|
|
// rtc::kNetworkCostMax indicates it should be used only as the last resort.
|
|
void set_network_cost(uint16_t network_cost) {
|
|
RTC_DCHECK_LE(network_cost, rtc::kNetworkCostMax);
|
|
network_cost_ = network_cost;
|
|
}
|
|
uint16_t network_cost() const { return network_cost_; }
|
|
|
|
// An ID assigned to the network hosting the candidate.
|
|
uint16_t network_id() const { return network_id_; }
|
|
void set_network_id(uint16_t network_id) { network_id_ = network_id; }
|
|
|
|
const std::string& foundation() const { return foundation_; }
|
|
void set_foundation(const std::string& foundation) {
|
|
foundation_ = foundation;
|
|
}
|
|
|
|
const rtc::SocketAddress& related_address() const { return related_address_; }
|
|
void set_related_address(const rtc::SocketAddress& related_address) {
|
|
related_address_ = related_address;
|
|
}
|
|
const std::string& tcptype() const { return tcptype_; }
|
|
void set_tcptype(const std::string& tcptype) { tcptype_ = tcptype; }
|
|
|
|
// The name of the transport channel of this candidate.
|
|
// TODO(phoglund): remove.
|
|
const std::string& transport_name() const { return transport_name_; }
|
|
void set_transport_name(const std::string& transport_name) {
|
|
transport_name_ = transport_name;
|
|
}
|
|
|
|
// The URL of the ICE server which this candidate is gathered from.
|
|
const std::string& url() const { return url_; }
|
|
void set_url(const std::string& url) { url_ = url; }
|
|
|
|
// Determines whether this candidate is equivalent to the given one.
|
|
bool IsEquivalent(const Candidate& c) const;
|
|
|
|
// Determines whether this candidate can be considered equivalent to the
|
|
// given one when looking for a matching candidate to remove.
|
|
bool MatchesForRemoval(const Candidate& c) const;
|
|
|
|
std::string ToString() const { return ToStringInternal(false); }
|
|
|
|
std::string ToSensitiveString() const { return ToStringInternal(true); }
|
|
|
|
uint32_t GetPriority(uint32_t type_preference,
|
|
int network_adapter_preference,
|
|
int relay_preference) const;
|
|
|
|
bool operator==(const Candidate& o) const;
|
|
bool operator!=(const Candidate& o) const;
|
|
|
|
// Returns a sanitized copy configured by the given booleans. If
|
|
// |use_host_address| is true, the returned copy has its IP removed from
|
|
// |address()|, which leads |address()| to be a hostname address. If
|
|
// |filter_related_address|, the returned copy has its related address reset
|
|
// to the wildcard address (i.e. 0.0.0.0 for IPv4 and :: for IPv6). Note that
|
|
// setting both booleans to false returns an identical copy to the original
|
|
// candidate.
|
|
Candidate ToSanitizedCopy(bool use_hostname_address,
|
|
bool filter_related_address) const;
|
|
|
|
private:
|
|
std::string ToStringInternal(bool sensitive) const;
|
|
|
|
std::string id_;
|
|
int component_;
|
|
std::string protocol_;
|
|
std::string relay_protocol_;
|
|
rtc::SocketAddress address_;
|
|
uint32_t priority_;
|
|
std::string username_;
|
|
std::string password_;
|
|
std::string type_;
|
|
std::string network_name_;
|
|
rtc::AdapterType network_type_;
|
|
uint32_t generation_;
|
|
std::string foundation_;
|
|
rtc::SocketAddress related_address_;
|
|
std::string tcptype_;
|
|
std::string transport_name_;
|
|
uint16_t network_id_;
|
|
uint16_t network_cost_;
|
|
std::string url_;
|
|
};
|
|
|
|
} // namespace cricket
|
|
|
|
#endif // API_CANDIDATE_H_
|