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1 /* | 1 /* |
2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_BASE_SOCKETADDRESS_H_ | 11 #ifndef WEBRTC_BASE_SOCKETADDRESS_H_ |
12 #define WEBRTC_BASE_SOCKETADDRESS_H_ | 12 #define WEBRTC_BASE_SOCKETADDRESS_H_ |
13 | 13 |
14 #include <string> | |
15 #include <vector> | |
16 #include <iosfwd> | |
17 #include "webrtc/base/basictypes.h" | |
18 #include "webrtc/base/ipaddress.h" | |
19 | 14 |
20 #undef SetPort | 15 // This header is deprecated and is just left here temporarily during |
21 | 16 // refactoring. See https://bugs.webrtc.org/7634 for more details. |
22 struct sockaddr_in; | 17 #include "webrtc/rtc_base/socketaddress.h" |
23 struct sockaddr_storage; | |
24 | |
25 namespace rtc { | |
26 | |
27 // Records an IP address and port. | |
28 class SocketAddress { | |
29 public: | |
30 // Creates a nil address. | |
31 SocketAddress(); | |
32 | |
33 // Creates the address with the given host and port. Host may be a | |
34 // literal IP string or a hostname to be resolved later. | |
35 // DCHECKs that port is in valid range (0 to 2^16-1). | |
36 SocketAddress(const std::string& hostname, int port); | |
37 | |
38 // Creates the address with the given IP and port. | |
39 // IP is given as an integer in host byte order. V4 only, to be deprecated. | |
40 // DCHECKs that port is in valid range (0 to 2^16-1). | |
41 SocketAddress(uint32_t ip_as_host_order_integer, int port); | |
42 | |
43 // Creates the address with the given IP and port. | |
44 // DCHECKs that port is in valid range (0 to 2^16-1). | |
45 SocketAddress(const IPAddress& ip, int port); | |
46 | |
47 // Creates a copy of the given address. | |
48 SocketAddress(const SocketAddress& addr); | |
49 | |
50 // Resets to the nil address. | |
51 void Clear(); | |
52 | |
53 // Determines if this is a nil address (empty hostname, any IP, null port) | |
54 bool IsNil() const; | |
55 | |
56 // Returns true if ip and port are set. | |
57 bool IsComplete() const; | |
58 | |
59 // Replaces our address with the given one. | |
60 SocketAddress& operator=(const SocketAddress& addr); | |
61 | |
62 // Changes the IP of this address to the given one, and clears the hostname | |
63 // IP is given as an integer in host byte order. V4 only, to be deprecated.. | |
64 void SetIP(uint32_t ip_as_host_order_integer); | |
65 | |
66 // Changes the IP of this address to the given one, and clears the hostname. | |
67 void SetIP(const IPAddress& ip); | |
68 | |
69 // Changes the hostname of this address to the given one. | |
70 // Does not resolve the address; use Resolve to do so. | |
71 void SetIP(const std::string& hostname); | |
72 | |
73 // Sets the IP address while retaining the hostname. Useful for bypassing | |
74 // DNS for a pre-resolved IP. | |
75 // IP is given as an integer in host byte order. V4 only, to be deprecated. | |
76 void SetResolvedIP(uint32_t ip_as_host_order_integer); | |
77 | |
78 // Sets the IP address while retaining the hostname. Useful for bypassing | |
79 // DNS for a pre-resolved IP. | |
80 void SetResolvedIP(const IPAddress& ip); | |
81 | |
82 // Changes the port of this address to the given one. | |
83 // DCHECKs that port is in valid range (0 to 2^16-1). | |
84 void SetPort(int port); | |
85 | |
86 // Returns the hostname. | |
87 const std::string& hostname() const { return hostname_; } | |
88 | |
89 // Returns the IP address as a host byte order integer. | |
90 // Returns 0 for non-v4 addresses. | |
91 uint32_t ip() const; | |
92 | |
93 const IPAddress& ipaddr() const; | |
94 | |
95 int family() const {return ip_.family(); } | |
96 | |
97 // Returns the port part of this address. | |
98 uint16_t port() const; | |
99 | |
100 // Returns the scope ID associated with this address. Scope IDs are a | |
101 // necessary addition to IPv6 link-local addresses, with different network | |
102 // interfaces having different scope-ids for their link-local addresses. | |
103 // IPv4 address do not have scope_ids and sockaddr_in structures do not have | |
104 // a field for them. | |
105 int scope_id() const {return scope_id_; } | |
106 void SetScopeID(int id) { scope_id_ = id; } | |
107 | |
108 // Returns the 'host' portion of the address (hostname or IP) in a form | |
109 // suitable for use in a URI. If both IP and hostname are present, hostname | |
110 // is preferred. IPv6 addresses are enclosed in square brackets ('[' and ']'). | |
111 std::string HostAsURIString() const; | |
112 | |
113 // Same as HostAsURIString but anonymizes IP addresses by hiding the last | |
114 // part. | |
115 std::string HostAsSensitiveURIString() const; | |
116 | |
117 // Returns the port as a string. | |
118 std::string PortAsString() const; | |
119 | |
120 // Returns hostname:port or [hostname]:port. | |
121 std::string ToString() const; | |
122 | |
123 // Same as ToString but anonymizes it by hiding the last part. | |
124 std::string ToSensitiveString() const; | |
125 | |
126 // Parses hostname:port and [hostname]:port. | |
127 bool FromString(const std::string& str); | |
128 | |
129 friend std::ostream& operator<<(std::ostream& os, const SocketAddress& addr); | |
130 | |
131 // Determines whether this represents a missing / any IP address. | |
132 // That is, 0.0.0.0 or ::. | |
133 // Hostname and/or port may be set. | |
134 bool IsAnyIP() const; | |
135 | |
136 // Determines whether the IP address refers to a loopback address. | |
137 // For v4 addresses this means the address is in the range 127.0.0.0/8. | |
138 // For v6 addresses this means the address is ::1. | |
139 bool IsLoopbackIP() const; | |
140 | |
141 // Determines whether the IP address is in one of the private ranges: | |
142 // For v4: 127.0.0.0/8 10.0.0.0/8 192.168.0.0/16 172.16.0.0/12. | |
143 // For v6: FE80::/16 and ::1. | |
144 bool IsPrivateIP() const; | |
145 | |
146 // Determines whether the hostname has been resolved to an IP. | |
147 bool IsUnresolvedIP() const; | |
148 | |
149 // Determines whether this address is identical to the given one. | |
150 bool operator ==(const SocketAddress& addr) const; | |
151 inline bool operator !=(const SocketAddress& addr) const { | |
152 return !this->operator ==(addr); | |
153 } | |
154 | |
155 // Compares based on IP and then port. | |
156 bool operator <(const SocketAddress& addr) const; | |
157 | |
158 // Determines whether this address has the same IP as the one given. | |
159 bool EqualIPs(const SocketAddress& addr) const; | |
160 | |
161 // Determines whether this address has the same port as the one given. | |
162 bool EqualPorts(const SocketAddress& addr) const; | |
163 | |
164 // Hashes this address into a small number. | |
165 size_t Hash() const; | |
166 | |
167 // Write this address to a sockaddr_in. | |
168 // If IPv6, will zero out the sockaddr_in and sets family to AF_UNSPEC. | |
169 void ToSockAddr(sockaddr_in* saddr) const; | |
170 | |
171 // Read this address from a sockaddr_in. | |
172 bool FromSockAddr(const sockaddr_in& saddr); | |
173 | |
174 // Read and write the address to/from a sockaddr_storage. | |
175 // Dual stack version always sets family to AF_INET6, and maps v4 addresses. | |
176 // The other version doesn't map, and outputs an AF_INET address for | |
177 // v4 or mapped addresses, and AF_INET6 addresses for others. | |
178 // Returns the size of the sockaddr_in or sockaddr_in6 structure that is | |
179 // written to the sockaddr_storage, or zero on failure. | |
180 size_t ToDualStackSockAddrStorage(sockaddr_storage* saddr) const; | |
181 size_t ToSockAddrStorage(sockaddr_storage* saddr) const; | |
182 | |
183 private: | |
184 std::string hostname_; | |
185 IPAddress ip_; | |
186 uint16_t port_; | |
187 int scope_id_; | |
188 bool literal_; // Indicates that 'hostname_' contains a literal IP string. | |
189 }; | |
190 | |
191 bool SocketAddressFromSockAddrStorage(const sockaddr_storage& saddr, | |
192 SocketAddress* out); | |
193 SocketAddress EmptySocketAddressWithFamily(int family); | |
194 | |
195 } // namespace rtc | |
196 | 18 |
197 #endif // WEBRTC_BASE_SOCKETADDRESS_H_ | 19 #endif // WEBRTC_BASE_SOCKETADDRESS_H_ |
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