1 /*
2 * Copyright (c) 2020, The OpenThread Authors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the copyright holder nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <arpa/inet.h>
30 #include <sstream>
31 #include <sys/socket.h>
32
33 #include "common/code_utils.hpp"
34 #include "common/logging.hpp"
35 #include "common/types.hpp"
36
37 namespace otbr {
38
Ip6Address(const uint8_t (& aAddress)[16])39 Ip6Address::Ip6Address(const uint8_t (&aAddress)[16])
40 {
41 memcpy(m8, aAddress, sizeof(m8));
42 }
43
ToString() const44 std::string Ip6Address::ToString() const
45 {
46 char strbuf[INET6_ADDRSTRLEN];
47
48 VerifyOrDie(inet_ntop(AF_INET6, this->m8, strbuf, sizeof(strbuf)) != nullptr,
49 "Failed to convert Ip6 address to string");
50
51 return std::string(strbuf);
52 }
53
ToSolicitedNodeMulticastAddress(void) const54 Ip6Address Ip6Address::ToSolicitedNodeMulticastAddress(void) const
55 {
56 Ip6Address ma(Ip6Address::GetSolicitedMulticastAddressPrefix());
57
58 ma.m8[13] = m8[13];
59 ma.m8[14] = m8[14];
60 ma.m8[15] = m8[15];
61
62 return ma;
63 }
64
CopyTo(struct sockaddr_in6 & aSockAddr) const65 void Ip6Address::CopyTo(struct sockaddr_in6 &aSockAddr) const
66 {
67 memset(&aSockAddr, 0, sizeof(aSockAddr));
68 CopyTo(aSockAddr.sin6_addr);
69 aSockAddr.sin6_family = AF_INET6;
70 }
71
CopyFrom(const struct sockaddr_in6 & aSockAddr)72 void Ip6Address::CopyFrom(const struct sockaddr_in6 &aSockAddr)
73 {
74 CopyFrom(aSockAddr.sin6_addr);
75 }
76
CopyTo(struct in6_addr & aIn6Addr) const77 void Ip6Address::CopyTo(struct in6_addr &aIn6Addr) const
78 {
79 static_assert(sizeof(m8) == sizeof(aIn6Addr.s6_addr), "invalid IPv6 address size");
80 memcpy(aIn6Addr.s6_addr, m8, sizeof(aIn6Addr.s6_addr));
81 }
82
CopyFrom(const struct in6_addr & aIn6Addr)83 void Ip6Address::CopyFrom(const struct in6_addr &aIn6Addr)
84 {
85 static_assert(sizeof(m8) == sizeof(aIn6Addr.s6_addr), "invalid IPv6 address size");
86 memcpy(m8, aIn6Addr.s6_addr, sizeof(aIn6Addr.s6_addr));
87 }
88
FromString(const char * aStr,Ip6Address & aAddr)89 otbrError Ip6Address::FromString(const char *aStr, Ip6Address &aAddr)
90 {
91 int ret;
92
93 ret = inet_pton(AF_INET6, aStr, &aAddr.m8);
94
95 return ret == 1 ? OTBR_ERROR_NONE : OTBR_ERROR_INVALID_ARGS;
96 }
97
FromString(const char * aStr)98 Ip6Address Ip6Address::FromString(const char *aStr)
99 {
100 Ip6Address addr;
101
102 SuccessOrDie(FromString(aStr, addr), "inet_pton failed");
103
104 return addr;
105 }
106
Set(const otIp6Prefix & aPrefix)107 void Ip6Prefix::Set(const otIp6Prefix &aPrefix)
108 {
109 memcpy(reinterpret_cast<void *>(this), &aPrefix, sizeof(*this));
110 }
111
ToString() const112 std::string Ip6Prefix::ToString() const
113 {
114 std::stringbuf strBuilder;
115 char strbuf[INET6_ADDRSTRLEN];
116
117 VerifyOrDie(inet_ntop(AF_INET6, mPrefix.m8, strbuf, sizeof(strbuf)) != nullptr,
118 "Failed to convert Ip6 prefix to string");
119
120 strBuilder.sputn(strbuf, strlen(strbuf));
121 strBuilder.sputc('/');
122
123 sprintf(strbuf, "%d", mLength);
124 strBuilder.sputn(strbuf, strlen(strbuf));
125
126 return strBuilder.str();
127 }
128
ToString(void) const129 std::string MacAddress::ToString(void) const
130 {
131 char strbuf[sizeof(m8) * 3];
132
133 snprintf(strbuf, sizeof(strbuf), "%02x:%02x:%02x:%02x:%02x:%02x", m8[0], m8[1], m8[2], m8[3], m8[4], m8[5]);
134
135 return std::string(strbuf);
136 }
137
138 } // namespace otbr
139