| /* |
| * |
| * Copyright (c) 2020-2021 Project CHIP Authors |
| * Copyright (c) 2019 Google LLC. |
| * Copyright (c) 2013-2018 Nest Labs, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /** |
| * @file |
| * This file defines the class <tt>Inet::IPAddress</tt> and |
| * related enumerated constants. The CHIP Inet Layer uses objects |
| * of this class to represent Internet protocol addresses of both |
| * IPv4 and IPv6 address families. (IPv4 addresses are stored |
| * internally as IPv4-Mapped IPv6 addresses.) |
| */ |
| |
| #pragma once |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <type_traits> |
| |
| #include <lib/core/CHIPError.h> |
| #include <lib/support/BitFlags.h> |
| #include <lib/support/DLLUtil.h> |
| |
| #include <inet/InetConfig.h> |
| #include <inet/InetError.h> |
| |
| #include "inet/IANAConstants.h" |
| |
| #if CHIP_SYSTEM_CONFIG_USE_LWIP && !CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| #include <lwip/init.h> |
| #include <lwip/ip_addr.h> |
| #if INET_CONFIG_ENABLE_IPV4 |
| #include <lwip/ip4_addr.h> |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| #include <lwip/inet.h> |
| #endif // CHIP_SYSTEM_CONFIG_USE_LWIP |
| |
| #if CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| #include <openthread/icmp6.h> |
| #include <openthread/ip6.h> |
| #endif // CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| #include <net/if.h> |
| #include <netinet/in.h> |
| #endif // CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS |
| #include <sys/socket.h> |
| #endif // CHIP_SYSTEM_CONFIG_USE_SOCKETS |
| |
| #if CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT && INET_CONFIG_ENABLE_IPV4 |
| #error Forbidden : native Open Thread implementation with IPV4 enabled |
| #endif |
| |
| #include <inet/InetInterface.h> |
| |
| #define NL_INET_IPV6_ADDR_LEN_IN_BYTES (16) |
| #define NL_INET_IPV6_MCAST_GROUP_LEN_IN_BYTES (14) |
| |
| namespace chip { |
| namespace Inet { |
| |
| /** |
| * Internet protocol address family |
| */ |
| enum class IPAddressType : uint8_t |
| { |
| kUnknown = 0, ///< Not used. |
| #if INET_CONFIG_ENABLE_IPV4 |
| kIPv4 = 1, ///< Internet protocol version 4. |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| kIPv6 = 2, ///< Internet protocol version 6. |
| kAny = 3 ///< The unspecified internet address (independent of protocol version). |
| }; |
| |
| /** |
| * Internet protocol v6 multicast flags |
| * |
| * Values of the \c IPv6MulticastFlag type are used to call the <tt>IPAddress::MakeIPv6Multicast()</tt> methods. |
| * They indicate the type of IPv6 multicast address to create. These numbers are registered by IETF with IANA. |
| */ |
| enum class IPv6MulticastFlag : uint8_t |
| { |
| /** The multicast address is (1) transient (i.e., dynamically-assigned) rather than (0) well-known (i.e, IANA-assigned). */ |
| kTransient = 0x01, |
| |
| /** The multicast address is (1) based on a network prefix. */ |
| kPrefix = 0x02 |
| }; |
| using IPv6MulticastFlags = BitFlags<IPv6MulticastFlag>; |
| |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS |
| /** |
| * SockAddr should be used when calling any API that returns (by copying into |
| * it) a sockaddr, because that will need enough storage that it can hold data |
| * for any socket type. |
| * |
| * It can also be used when calling an API that accepts a sockaddr, to simplify |
| * the type-punning needed. |
| */ |
| union SockAddr |
| { |
| sockaddr any; |
| sockaddr_in in; |
| sockaddr_in6 in6; |
| sockaddr_storage storage; |
| }; |
| |
| /** |
| * SockAddrWithoutStorage can be used any time we want to do the sockaddr |
| * type-punning but will not store the data ourselves (e.g. we're working with |
| * an existing sockaddr pointer, and reintepret it as a |
| * pointer-to-SockAddrWithoutStorage). |
| */ |
| union SockAddrWithoutStorage |
| { |
| sockaddr any; |
| sockaddr_in in; |
| sockaddr_in6 in6; |
| }; |
| #endif // CHIP_SYSTEM_CONFIG_USE_SOCKETS |
| |
| /** |
| * @brief Internet protocol address |
| * |
| * @details |
| * The CHIP Inet Layer uses objects of this class to represent Internet |
| * protocol addresses (independent of protocol version). |
| * |
| */ |
| class DLL_EXPORT IPAddress |
| { |
| public: |
| /** |
| * Maximum length of the string representation of an IP address, including a terminating NUL. |
| */ |
| #if CHIP_SYSTEM_CONFIG_USE_LWIP && !CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| static constexpr uint16_t kMaxStringLength = IP6ADDR_STRLEN_MAX; |
| #endif // CHIP_SYSTEM_CONFIG_USE_LWIP |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| static constexpr uint16_t kMaxStringLength = INET6_ADDRSTRLEN; |
| #endif // CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| |
| #if CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| #ifndef INET6_ADDRSTRLEN |
| #define INET6_ADDRSTRLEN OT_IP6_ADDRESS_STRING_SIZE |
| #endif |
| static constexpr uint16_t kMaxStringLength = OT_IP6_ADDRESS_STRING_SIZE; |
| #endif |
| |
| IPAddress() = default; |
| |
| #if CHIP_SYSTEM_CONFIG_USE_LWIP && !CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| explicit IPAddress(const ip6_addr_t & ipv6Addr); |
| #if INET_CONFIG_ENABLE_IPV4 || LWIP_IPV4 |
| explicit IPAddress(const ip4_addr_t & ipv4Addr); |
| explicit IPAddress(const ip_addr_t & addr); |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| #endif // CHIP_SYSTEM_CONFIG_USE_LWIP |
| |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| explicit IPAddress(const struct in6_addr & ipv6Addr); |
| #if INET_CONFIG_ENABLE_IPV4 |
| explicit IPAddress(const struct in_addr & ipv4Addr); |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| #endif // CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| |
| #if CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| explicit IPAddress(const otIp6Address & ipv6Addr); |
| #endif |
| |
| /** |
| * @brief Opaque word array to contain IP addresses (independent of protocol version) |
| * |
| * @details |
| * IPv6 address use all 128-bits split into four 32-bit network byte |
| * ordered unsigned integers. IPv4 addresses are IPv4-Mapped IPv6 addresses, |
| * i.e. the first two words are zero, the third word contains 0xFFFF in |
| * network byte order, and the fourth word contains the IPv4 |
| * address in network byte order. |
| */ |
| uint32_t Addr[4]; |
| |
| /** |
| * @brief Test whether address is IPv6 compatible. |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv6 address |
| * family. Note well: the unspecified address is not an IPv6 address. |
| * |
| * @retval true The address is IPv6 and not the unspecified address. |
| * @retval false The address is IPv4 or the unspecified address. |
| */ |
| bool IsIPv6() const; |
| |
| /** |
| * @brief Test whether address is IPv6 global unicast address. |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv6 address |
| * family and has the global unicast address prefix. |
| * |
| * @retval true Address is IPv6 global unicast |
| * @retval false Otherwise |
| */ |
| bool IsIPv6GlobalUnicast() const; |
| |
| /** |
| * @brief Test whether address is IPv6 unique-local address (ULA). |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv6 address |
| * family and has the reserved IPv6 unique-local address prefix. |
| * |
| * @retval true Address is IPv6 unique-local |
| * @retval false Otherwise |
| */ |
| bool IsIPv6ULA() const; |
| |
| /** |
| * @brief Test whether address is IPv6 link-local address (LL). |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv6 address |
| * family and has the reserved IPv6 link-local address prefix. |
| * |
| * @retval true Address is IPv6 link-local |
| * @retval false Otherwise |
| */ |
| bool IsIPv6LinkLocal() const; |
| |
| /** |
| * @brief Test whether address is IPv6 multicast. |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv6 address |
| * family and has the reserved IPv6 multicast address prefix. |
| * |
| * @retval true Address is IPv6 multicast |
| * @retval false Otherwise |
| */ |
| bool IsIPv6Multicast() const; |
| |
| /** |
| * @brief Test whether address is IPv4 or IPv6 multicast. |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv4 or IPv6 address |
| * family and has the reserved IPv4 or IPv6 multicast address prefix. |
| * |
| * @retval true Address is IPv4 or IPv6 multicast |
| * @retval false Otherwise |
| */ |
| bool IsMulticast() const; |
| |
| /** |
| * @brief Extract the IID of an IPv6 ULA address. |
| * |
| * @details |
| * Use this method with an IPv6 unique-local address (ULA) to extract the |
| * identifier identifier (IID), which is the least significant 64 bits of |
| * the address. |
| * |
| * @return 64-bit interface identifier, or zero if the IP address is not |
| * an IPv6 unique-local address. |
| */ |
| uint64_t InterfaceId() const; |
| |
| /** |
| * @brief Extract the 16-bit subnet identifier of an IPv6 ULA address. |
| * |
| * @details |
| * Use this method with an IPv6 unique-local address (ULA) to extract the |
| * subnet identifier, which is the least significant 16 bits of the |
| * network prefix. The network prefix is the most significant 64 bits of |
| * of the address. In other words, the subnet identifier is located in |
| * the 7th and 8th bytes of a 16-byte address. |
| * |
| * @return 16-bit subnet identifier, or zero if the IP address is not |
| * an IPv6 unique-local address. |
| */ |
| uint16_t Subnet() const; |
| |
| /** |
| * @brief Extract the 16-bit global network identifier of an IPv6 ULA |
| * address. |
| * |
| * @details |
| * Use this method with an IPv6 unique-local address (ULA) to extract the |
| * global network identifier, which is the 40 bits immediately following |
| * the distinguished ULA network prefix, i.e. fd00::/8. In other words, |
| * the global network identifier is located in the five bytes from the 2nd |
| * 2nd through the 6th bytes in the address. |
| * |
| * @return 40-bit global network identifier, or zero if the IP address |
| * is not an IPv6 unique-local address. |
| */ |
| uint64_t GlobalId() const; |
| |
| /** |
| * @brief Extract the type of the IP address. |
| * |
| * @details |
| * Use this method to return an value of the enumerated type \c |
| * IPAddressType to indicate the type of the IP address. |
| * |
| * @retval IPAddressType::kIPv4 The address is IPv4. |
| * @retval IPAddressType::kIPv6 The address is IPv6. |
| * @retval IPAddressType::kAny The address is the unspecified address. |
| */ |
| IPAddressType Type() const; |
| |
| /** |
| * @brief Compare this IP address with another for equivalence. |
| * |
| * @param[in] other The address to compare. |
| * |
| * @retval true If equivalent to \c other |
| * @retval false Otherwise |
| */ |
| bool operator==(const IPAddress & other) const; |
| |
| /** |
| * @brief Compare this IP address with another for inequivalence. |
| * |
| * @param[in] other The address to compare. |
| * |
| * @retval true If equivalent to \c other |
| * @retval false Otherwise |
| */ |
| bool operator!=(const IPAddress & other) const; |
| |
| /** |
| * @brief Emit the IP address in conventional text presentation format. |
| * |
| * @param[out] buf The address of the emitted text. |
| * @param[in] bufSize The size of the buffer for the emitted text. |
| * |
| * @details |
| * Use <tt>ToString(char *buf, uint32_t bufSize) const</tt> to write the |
| * conventional text presentation form of the IP address to the memory |
| * located at \c buf and extending as much as \c bufSize bytes, including |
| * its NUL termination character. |
| * |
| * Note Well: not compliant with RFC 5952 on some platforms. Specifically, |
| * zero compression may not be applied according to section 4.2. |
| * |
| * @return The argument \c buf if no formatting error, or zero otherwise. |
| */ |
| char * ToString(char * buf, uint32_t bufSize) const; |
| |
| /** |
| * A version of ToString that writes to a literal and deduces how much space |
| * it as to work with. |
| */ |
| template <uint32_t N> |
| inline char * ToString(char (&buf)[N]) const |
| { |
| return ToString(buf, N); |
| } |
| |
| /** |
| * @brief Scan the IP address from its conventional presentation text. |
| * |
| * @param[in] str The address of the emitted text. |
| * @param[out] output The object to set to the scanned address. |
| * |
| * @details |
| * Use <tt>FromString(const char *str, IPAddress& output)</tt> to |
| * overwrite an IP address by scanning the conventional text presentation |
| * located at \c str. |
| * |
| * @retval true The presentation format is valid |
| * @retval false Otherwise |
| */ |
| static bool FromString(const char * str, IPAddress & output); |
| |
| /** |
| * @brief Scan the IP address from its conventional presentation text. |
| * |
| * @param[in] str A pointer to the text to be scanned. |
| * @param[in] strLen The length of the text to be scanned. |
| * @param[out] output The object to set to the scanned address. |
| * |
| * @details |
| * Use <tt>FromString(const char *str, size_t strLen, IPAddress& output)</tt> to |
| * overwrite an IP address by scanning the conventional text presentation |
| * located at \c str. |
| * |
| * @retval true The presentation format is valid |
| * @retval false Otherwise |
| */ |
| static bool FromString(const char * str, size_t strLen, IPAddress & output); |
| |
| /** |
| * @brief |
| * Scan the IP address from its conventional presentation text, including |
| * the interface ID if present. (e.g. "fe80::2%wlan0"). If no interface ID |
| * is present, then ifaceOutput will be set to the null interface ID. |
| * |
| * @param[in] str A pointer to the text to be scanned. |
| * @param[out] addrOutput The object to set to the IP address. |
| * @param[out] ifaceOutput The object to set to the interface ID. |
| * |
| * @retval true The presentation format is valid |
| * @retval false Otherwise |
| */ |
| static bool FromString(const char * str, IPAddress & addrOutput, class InterfaceId & ifaceOutput); |
| |
| /** |
| * @brief Emit the IP address in standard network representation. |
| * |
| * @param[in,out] p Reference to the cursor to use for writing. |
| * |
| * @details |
| * Use <tt>WriteAddress(uint8_t *&p)</tt> to encode the IP address in |
| * the binary format defined by RFC 4291 for IPv6 addresses. IPv4 |
| * addresses are encoded according to section 2.5.5.2 "IPv4-Mapped |
| * IPv6 Address". |
| */ |
| void WriteAddress(uint8_t *& p) const; |
| |
| /** |
| * @brief Emit the IP address in standard network representation. |
| * |
| * @param[in,out] p Reference to the cursor to use for reading. |
| * @param[out] output Object to receive decoded IP address. |
| * |
| * @details |
| * Use <tt>ReadAddress(uint8_t *&p, IPAddress &output)</tt> to decode |
| * the IP address at \c p to the object \c output. |
| */ |
| static void ReadAddress(const uint8_t *& p, IPAddress & output); |
| |
| /** |
| * @brief Test whether address is IPv4 compatible. |
| * |
| * @details |
| * Use this method to check if the address belongs to the IPv4 address |
| * family. Note well: the unspecified address is not an IPv4 address. |
| * |
| * @retval true The address is IPv4 and not the unspecified address. |
| * @retval false The address is IPv6 or the unspecified address. |
| */ |
| bool IsIPv4() const; |
| |
| /** |
| * @brief Test whether address is IPv4 multicast. |
| * |
| * @details |
| * Use this method to check if the address is an IPv4 multicast |
| * address. |
| * |
| * @retval true Address is the IPv4 multicast |
| * @retval false Otherwise |
| */ |
| bool IsIPv4Multicast() const; |
| |
| /** |
| * @brief Test whether address is IPv4 broadcast. |
| * |
| * @details |
| * Use this method to check if the address is the special purpose IPv4 |
| * broadcast address. |
| * |
| * @retval true Address is the IPv4 broadcast |
| * @retval false Otherwise |
| */ |
| bool IsIPv4Broadcast() const; |
| |
| /** |
| * @fn ToIPv4() const |
| * |
| * @brief Extract the IPv4 address as a platform data structure. |
| * |
| * @details |
| * Use <tt>ToIPv4() const</tt> to extract the content as an IPv4 address, |
| * if possible. IPv6 addresses and the unspecified address are |
| * extracted as <tt>0.0.0.0</tt>. |
| * |
| * The result is either of type <tt>struct in_addr</tt> (on POSIX) or |
| * <tt>ip4_addr_t</tt> (on LwIP). |
| * |
| * @return The encapsulated IPv4 address, or \c 0.0.0.0 if the address is |
| * either unspecified or not an IPv4 address. |
| */ |
| |
| /** |
| * @fn ToIPv6() const |
| * |
| * @brief Extract the IPv6 address as a platform data structure. |
| * |
| * @details |
| * Use <tt>ToIPv6() const</tt> to extract the content as an IPv6 address, |
| * if possible. IPv4 addresses and the unspecified address are extracted |
| * as <tt>[::]</tt>. |
| * |
| * The result is either of type <tt>struct in6_addr</tt> (on POSIX) or |
| * <tt>ip6_addr_t</tt> (on LwIP). |
| * |
| * @return The encapsulated IPv4 address, or \c [::] if the address is |
| * either unspecified or not an IPv4 address. |
| */ |
| |
| #if CHIP_SYSTEM_CONFIG_USE_LWIP && !CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| |
| /** |
| * @fn ToLwIPAddr() const |
| * |
| * @brief Extract the IP address as a LwIP ip_addr_t structure. |
| * |
| * @details |
| * Use <tt>ToLwIPAddr() const</tt> to extract the content as an IP address, |
| * if possible. |
| * |
| * @return An LwIP ip_addr_t structure corresponding to the IP address. |
| */ |
| ip_addr_t ToLwIPAddr(void) const; |
| |
| /** |
| * Extract the IP address as a LwIP ip_addr_t structure. |
| * |
| * If the IP address is Any, the result is IP6_ADDR_ANY unless the requested addressType is kIPv4. |
| * If the requested addressType is IPAddressType::kAny, extracts the IP address as an LwIP ip_addr_t structure. |
| * Otherwise, returns INET_ERROR_WRONG_ADDRESS_TYPE if the requested addressType does not match the IP address. |
| */ |
| CHIP_ERROR ToLwIPAddr(IPAddressType addressType, ip_addr_t & outAddress) const; |
| |
| /** |
| * @brief Convert the INET layer address type to its underlying LwIP type. |
| * |
| * @details |
| * Use <tt>ToLwIPAddrType(IPAddressType)</tt> to convert the IP address type |
| * to its underlying LwIP address type code. |
| */ |
| static lwip_ip_addr_type ToLwIPAddrType(IPAddressType); |
| |
| ip6_addr_t ToIPv6(void) const; |
| |
| #if INET_CONFIG_ENABLE_IPV4 |
| ip4_addr_t ToIPv4(void) const; |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| |
| #endif // CHIP_SYSTEM_CONFIG_USE_LWIP |
| |
| #if CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_CONFIG_USE_NETWORK_FRAMEWORK |
| |
| struct in6_addr ToIPv6() const; |
| |
| #if INET_CONFIG_ENABLE_IPV4 |
| struct in_addr ToIPv4() const; |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| |
| /** |
| * Get the IP address from a SockAddr. |
| */ |
| static CHIP_ERROR GetIPAddressFromSockAddr(const SockAddrWithoutStorage & sockaddr, IPAddress & outIPAddress); |
| static CHIP_ERROR GetIPAddressFromSockAddr(const sockaddr & sockaddr, IPAddress & outIPAddress) |
| { |
| return GetIPAddressFromSockAddr(reinterpret_cast<const SockAddrWithoutStorage &>(sockaddr), outIPAddress); |
| } |
| static IPAddress FromSockAddr(const sockaddr_in6 & sockaddr) { return IPAddress(sockaddr.sin6_addr); } |
| #if INET_CONFIG_ENABLE_IPV4 |
| static IPAddress FromSockAddr(const sockaddr_in & sockaddr) { return IPAddress(sockaddr.sin_addr); } |
| #endif // INET_CONFIG_ENABLE_IPV4 |
| |
| #endif // CHIP_SYSTEM_CONFIG_USE_SOCKETS || CHIP_SYSTEM_USE_NETWORK_FRAMEWORK |
| |
| #if CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| otIp6Address ToIPv6() const; |
| static IPAddress FromOtAddr(const otIp6Address & address); |
| #endif // CHIP_SYSTEM_CONFIG_USE_OPEN_THREAD_ENDPOINT |
| |
| /** |
| * @brief Construct an IPv6 unique-local address (ULA) from its parts. |
| * |
| * @details |
| * Use <tt>MakeULA(uint64_t globalId, uint16_t subnet, uint64_t |
| * interfaceId)</tt> to construct a unique-local address (ULA) with global |
| * network identifier \c globalId, subnet identifier \c subnet and |
| * interface identifier (IID) \c interfaceId. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeULA(uint64_t globalId, uint16_t subnet, uint64_t interfaceId); |
| |
| /** |
| * @brief Construct an IPv6 link-local address (LL) from its IID. |
| * |
| * @details |
| * Use <tt>MakeLLA(uint64_t interfaceId)</tt> to construct an IPv6 |
| * link-local address (LL) with interface identifier \c interfaceId. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeLLA(uint64_t interfaceId); |
| |
| /** |
| * @brief Construct an IPv6 multicast address from its parts. |
| * |
| * @details |
| * Use <tt>MakeIPv6Multicast(uint8_t flags, uint8_t scope, |
| * uint8_t groupId[14])</tt> to construct an IPv6 multicast |
| * address with \c flags for routing scope \c scope and group |
| * identifier octets \c groupId. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeIPv6Multicast(IPv6MulticastFlags aFlags, uint8_t aScope, |
| const uint8_t aGroupId[NL_INET_IPV6_MCAST_GROUP_LEN_IN_BYTES]); |
| |
| /** |
| * @brief Construct an IPv6 multicast address from its parts. |
| * |
| * @details |
| * Use <tt>MakeIPv6Multicast(uint8_t flags, uint8_t scope, |
| * uint32_t groupId)</tt> to construct an IPv6 multicast |
| * address with \c flags for routing scope \c scope and group |
| * identifier \c groupId. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeIPv6Multicast(IPv6MulticastFlags aFlags, uint8_t aScope, uint32_t aGroupId); |
| |
| /** |
| * @brief Construct a well-known IPv6 multicast address from its parts. |
| * |
| * @details |
| * Use <tt>MakeIPv6WellKnownMulticast(uint8_t scope, uint32_t |
| * groupId)</tt> to construct an IPv6 multicast address for |
| * routing scope \c scope and group identifier \c groupId. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeIPv6WellKnownMulticast(uint8_t aScope, uint32_t aGroupId); |
| |
| /** |
| * @brief Construct a transient IPv6 multicast address from its parts. |
| * |
| * @details |
| * Use <tt>MakeIPv6TransientMulticast(uint8_t flags, uint8_t scope, |
| * uint8_t groupId[14])</tt> to construct a transient IPv6 |
| * multicast address with \c flags for routing scope \c scope and |
| * group identifier octets \c groupId. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeIPv6TransientMulticast(IPv6MulticastFlags aFlags, uint8_t aScope, |
| const uint8_t aGroupId[NL_INET_IPV6_MCAST_GROUP_LEN_IN_BYTES]); |
| |
| /** |
| * @brief Construct a transient, prefix IPv6 multicast address from its parts. |
| * |
| * @details |
| * Use <tt>MakeIPv6PrefixMulticast(uint8_t scope, uint8_t |
| * prefixlen, const uint64_t prefix, uint32_t groupId)</tt> to |
| * construct a transient, prefix IPv6 multicast address with for |
| * routing scope \c scope and group identifier octets \c groupId, |
| * qualified by the prefix \c prefix of length \c prefixlen bits. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeIPv6PrefixMulticast(uint8_t aScope, uint8_t aPrefixLength, const uint64_t & aPrefix, uint32_t aGroupId); |
| |
| /** |
| * @brief Construct an IPv4 broadcast address. |
| * |
| * @return The constructed IP address. |
| */ |
| static IPAddress MakeIPv4Broadcast(); |
| |
| /** |
| * @brief The distinguished unspecified IP address object. |
| * |
| * @details |
| * This object is used as a constant for equivalence comparisons. It must |
| * not be modified by users of the CHIP Inet Layer. |
| */ |
| static IPAddress Any; |
| }; |
| |
| static_assert(std::is_trivial<IPAddress>::value, "IPAddress is not trivial"); |
| |
| } // namespace Inet |
| } // namespace chip |
