/**************************************************************************** * include/netinet/in.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you 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. * ****************************************************************************/ #ifndef __INCLUDE_NETINET_IN_H #define __INCLUDE_NETINET_IN_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Values for protocol argument to socket() */ #define IPPROTO_IP 0 /* Default protocol */ #define IPPROTO_HOPOPTS 0 /* IPv6 Hop-by-Hop options. */ #define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ #define IPPROTO_IGMP 2 /* Internet Group Management Protocol */ #define IPPROTO_IPIP 4 /* IPIP tunnels (older KA9Q tunnels use 94) */ #define IPPROTO_TCP 6 /* Transmission Control Protocol */ #define IPPROTO_EGP 8 /* Exterior Gateway Protocol */ #define IPPROTO_PUP 12 /* PUP protocol */ #define IPPROTO_UDP 17 /* User Datagram Protocol */ #define IPPROTO_IDP 22 /* XNS IDP protocol */ #define IPPROTO_TP 29 /* SO Transport Protocol Class 4. */ #define IPPROTO_DCCP 33 /* Datagram Congestion Control Protocol */ #define IPPROTO_IPV6 41 /* IPv6-in-IPv4 tunnelling */ #define IPPROTO_ROUTING 43 /* IPv6 routing header. */ #define IPPROTO_FRAGMENT 44 /* IPv6 fragmentation header. */ #define IPPROTO_RSVP 46 /* Reservation Protocol. */ #define IPPROTO_GRE 47 /* General Routing Encapsulation. */ #define IPPROTO_ESP 50 /* Encapsulation Security Payload protocol */ #define IPPROTO_AH 51 /* Authentication Header protocol */ #define IPPROTO_ICMP6 58 /* Internal Control Message Protocol v6 */ #define IPPROTO_ICMPV6 IPPROTO_ICMP6 #define IPPROTO_NONE 59 /* IPv6 no next header. */ #define IPPROTO_DSTOPTS 60 /* IPv6 destination options. */ #define IPPROTO_MTP 92 /* Multicast Transport Protocol. */ #define IPPROTO_ENCAP 98 /* Encapsulation Header. */ #define IPPROTO_BEETPH 94 /* IP option pseudo header for BEET */ #define IPPROTO_PIM 103 /* Protocol Independent Multicast */ #define IPPROTO_COMP 108 /* Compression Header protocol */ #define IPPROTO_SCTP 132 /* Stream Control Transport Protocol */ #define IPPROTO_UDPLITE 136 /* UDP-Lite (RFC 3828) */ #define IPPROTO_MPLS 137 /* MPLS in IP (RFC 4023) */ #define IPPROTO_RAW 255 /* Raw IP packets */ /* SOL_IP protocol-level socket options. */ #define IP_MULTICAST_IF (__SO_PROTOCOL + 1) /* Set local device for a * multicast socket */ #define IP_MULTICAST_TTL (__SO_PROTOCOL + 2) /* Set/read the time-to- * live value of outgoing * multicast packets */ #define IP_MULTICAST_LOOP (__SO_PROTOCOL + 3) /* Set/read boolean that * determines whether sent * multicast packets should * be looped back to local * sockets. */ #define IP_ADD_MEMBERSHIP (__SO_PROTOCOL + 4) /* Join a multicast group */ #define IP_DROP_MEMBERSHIP (__SO_PROTOCOL + 5) /* Leave a multicast group */ #define IP_UNBLOCK_SOURCE (__SO_PROTOCOL + 6) /* Unblock previously * blocked multicast source */ #define IP_BLOCK_SOURCE (__SO_PROTOCOL + 7) /* Stop receiving multicast * data from source */ #define IP_ADD_SOURCE_MEMBERSHIP (__SO_PROTOCOL + 8) /* Join a multicast group; * allow receive only from * source */ #define IP_DROP_SOURCE_MEMBERSHIP (__SO_PROTOCOL + 9) /* Leave a source-specific * group. Stop receiving * data from a given * multicast group that come * from a given source */ #define IP_MSFILTER (__SO_PROTOCOL + 10) /* Access advanced, full- * state filtering API */ #define IP_MULTICAST_ALL (__SO_PROTOCOL + 11) /* Modify the delivery policy * of multicast messages bound * to INADDR_ANY */ #define IP_PKTINFO (__SO_PROTOCOL + 12) /* Get some information about * the incoming packet */ #define IP_TOS (__SO_PROTOCOL + 13) /* Access the Type-Of-Service * (TOS) field */ #define IP_TTL (__SO_PROTOCOL + 14) /* The IP TTL (time to live) * of IP packets sent by the * network stack */ /* SOL_IPV6 protocol-level socket options. */ #define IPV6_JOIN_GROUP (__SO_PROTOCOL + 1) /* Join a multicast group */ #define IPV6_LEAVE_GROUP (__SO_PROTOCOL + 2) /* Quit a multicast group */ #define IPV6_MULTICAST_HOPS (__SO_PROTOCOL + 3) /* Multicast hop limit */ #define IPV6_MULTICAST_IF (__SO_PROTOCOL + 4) /* Interface to use for * outgoing multicast packets */ #define IPV6_MULTICAST_LOOP (__SO_PROTOCOL + 5) /* Multicast packets are * delivered back to the local * application */ #define IPV6_UNICAST_HOPS (__SO_PROTOCOL + 6) /* Unicast hop limit */ #define IPV6_V6ONLY (__SO_PROTOCOL + 7) /* Restrict AF_INET6 socket * to IPv6 communications only */ #define IPV6_PKTINFO (__SO_PROTOCOL + 8) /* Information about the * incoming packet */ #define IPV6_RECVPKTINFO (__SO_PROTOCOL + 9) /* Receive the information about * the incoming packet */ #define IPV6_TCLASS (__SO_PROTOCOL + 10) /* Access the Traffic Class * field */ #define IPV6_RECVHOPLIMIT (__SO_PROTOCOL + 11) /* Access the hop limit field */ #define IPV6_HOPLIMIT (__SO_PROTOCOL + 12) /* Hop limit */ /* Values used with SIOCSIFMCFILTER and SIOCGIFMCFILTER ioctl's */ #define MCAST_EXCLUDE 0 #define MCAST_INCLUDE 1 /* Definitions of the bits in an Internet address integer. * On subnets, host and network parts are found according to * the subnet mask, not these masks. */ #define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0) #define IN_CLASSA_NET 0xff000000 #define IN_CLASSA_NSHIFT 24 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) #define IN_CLASSA_MAX 128 #define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000) #define IN_CLASSB_NET 0xffff0000 #define IN_CLASSB_NSHIFT 16 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) #define IN_CLASSB_MAX 65536 #define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000) #define IN_CLASSC_NET 0xffffff00 #define IN_CLASSC_NSHIFT 8 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) /* Test if an IPv4 address is a multicast address */ #define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) #define IN_MULTICAST(i) IN_CLASSD(i) /* Special values of in_addr_t */ #define INADDR_ANY ((in_addr_t)0x00000000) /* Address to accept any * incoming messages */ #define INADDR_BROADCAST ((in_addr_t)0xffffffff) /* Address to send to * all hosts */ #define INADDR_NONE ((in_addr_t)0xffffffff) /* Address indicating an * error return */ #define INADDR_LOOPBACK ((in_addr_t)0x7f000001) /* Inet 127.0.0.1. */ /* Special initializer for in6_addr_t */ #define IN6ADDR_ANY_INIT {{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}}} #define IN6ADDR_LOOPBACK_INIT {{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}}} /* Sizes of addresses (per OpenGroup.org) */ #define INET_ADDRSTRLEN 16 /* nnn.nnn.nnn.nnn */ #define INET6_ADDRSTRLEN 46 /* xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx */ /* struct in6_addr union selectors */ #define s6_addr in6_u.u6_addr8 #define s6_addr16 in6_u.u6_addr16 #define s6_addr32 in6_u.u6_addr32 /* Checks for special IPv6 addresses */ #define IN6_IS_ADDR_MULTICAST(a) \ ((a)->s6_addr[0] == 0xff) #define IN6_IS_ADDR_LINKLOCAL(a) \ ((a)->s6_addr16[0] & HTONS(0xffc0) == HTONS(0xfe80)) #define IN6_IS_ADDR_LOOPBACK(a) \ ((a)->s6_addr32[0] == 0 && \ (a)->s6_addr32[1] == 0 && \ (a)->s6_addr32[2] == 0 && \ (a)->s6_addr32[3] == HTONL(1)) #define IN6_IS_ADDR_UNSPECIFIED(a) \ ((a)->s6_addr32[0] == 0 && \ (a)->s6_addr32[1] == 0 && \ (a)->s6_addr32[2] == 0 && \ (a)->s6_addr32[3] == 0) #define IN6_IS_ADDR_V4COMPAT(a) \ ((a)->s6_addr32[0] == 0 && \ (a)->s6_addr32[1] == 0 && \ (a)->s6_addr32[2] == 0 && \ (a)->s6_addr32[3] != 0 && \ (a)->s6_addr32[3] != NTOHL(1)) #define IN6_IS_ADDR_V4MAPPED(a) \ ((a)->s6_addr32[0] == 0 && \ (a)->s6_addr32[1] == 0 && \ (a)->s6_addr32[2] == HTONL(0xffff)) /* This macro to convert a 16/32-bit constant values quantity from host byte * order to network byte order. The 16-bit version of this macro is required * for uIP: */ #ifdef CONFIG_ENDIAN_BIG # define HTONS(ns) (ns) # define HTONL(nl) (nl) # define HTONQ(nq) (nq) #else # define HTONS __swap_uint16 # define HTONL __swap_uint32 # define HTONQ __swap_uint64 #endif #define NTOHS(hs) HTONS(hs) #define NTOHL(hl) HTONL(hl) #define NTOHQ(hq) HTONQ(hq) /**************************************************************************** * Public Type Definitions ****************************************************************************/ /* IPv4/IPv6 port number */ typedef uint16_t in_port_t; /* IPv4 Internet address */ typedef uint32_t in_addr_t; struct in_addr { in_addr_t s_addr; /* Address (network byte order) */ }; struct sockaddr_in { sa_family_t sin_family; /* Address family: AF_INET */ in_port_t sin_port; /* Port in network byte order */ struct in_addr sin_addr; /* Internet address */ uint8_t sin_zero[8]; }; /* Used with certain IPv4 socket options */ struct ip_mreq { struct in_addr imr_multiaddr; /* IPv4 multicast address of group */ struct in_addr imr_interface; /* Local IPv4 address of interface */ }; struct ip_mreqn { struct in_addr imr_multiaddr; /* IPv4 multicast address of group */ struct in_addr imr_interface; /* Local IPv4 address of interface */ unsigned int imr_ifindex; /* Local interface index */ }; struct ip_mreq_source { struct in_addr imr_multiaddr; /* IPv4 multicast group address */ struct in_addr imr_interface; /* IPv4 address of local interface */ struct in_addr imr_sourceaddr; /* IPv4 address of multicast source */ }; struct ip_msfilter { struct in_addr imsf_multiaddr; /* IPv4 multicast group address */ struct in_addr imsf_interface; /* IPv4 address of local interface */ uint32_t imsf_fmode; /* Filter mode */ uint32_t imsf_numsrc; /* Number of sources in the following array */ struct in_addr imsf_slist[1]; /* Array of source addresses */ }; struct in_pktinfo { int ipi_ifindex; /* Interface index */ struct in_addr ipi_spec_dst; /* Local address */ struct in_addr ipi_addr; /* Header Destination address */ }; /* IPv6 Internet address */ struct in6_addr { union { uint8_t u6_addr8[16]; uint16_t u6_addr16[8]; uint32_t u6_addr32[4]; } in6_u; }; struct sockaddr_in6 { sa_family_t sin6_family; /* Address family: AF_INET6 */ in_port_t sin6_port; /* Port in network byte order */ uint32_t sin6_flowinfo; /* IPv6 traffic class and flow information */ struct in6_addr sin6_addr; /* IPv6 Internet address */ uint32_t sin6_scope_id; /* Set of interfaces for a scope */ }; /* Used with certain IPv6 socket options */ struct ipv6_mreq { struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast address of group */ unsigned int ipv6mr_interface; /* Local interface index */ }; struct in6_pktinfo { struct in6_addr ipi6_addr; /* src/dst IPv6 address */ int ipi6_ifindex; /* send/recv interface index */ }; /**************************************************************************** * Public Data ****************************************************************************/ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /* Global IPv6 in6addr_any */ EXTERN const struct in6_addr in6addr_any; /**************************************************************************** * Public Function Prototypes ****************************************************************************/ /* Functions to convert between host and network byte ordering. * * REVISIT: Since network order is defined as big-endian, the following * functions are equivalent to functions declared in endian.h: * * htonl htobe32 * htons htobe16 * ntohl be32toh * ntohs be16toh */ uint32_t ntohl(uint32_t nl); uint16_t ntohs(uint16_t ns); uint64_t ntohq(uint64_t nq); uint32_t htonl(uint32_t hl); uint16_t htons(uint16_t hs); uint64_t htonq(uint64_t hq); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __INCLUDE_NETINET_IN_H */