1 /* 2 * Copyright 2002-2019, Haiku, Inc. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _NETINET_IN_H_ 6 #define _NETINET_IN_H_ 7 8 9 #include <net/if.h> 10 #include <endian.h> 11 #include <stdint.h> 12 #include <sys/types.h> 13 14 /* RFC 2553 states that these must be available through <netinet/in.h> */ 15 #include <netinet6/in6.h> 16 17 18 #ifdef __cplusplus 19 extern "C" { 20 #endif 21 22 typedef uint16_t in_port_t; 23 typedef uint32_t in_addr_t; 24 25 /* We can't include <ByteOrder.h> since we are a POSIX file, 26 * and we are not allowed to import all the BeOS types here. */ 27 #if __GNUC__ >= 4 28 # define __net_swap_int32(arg) (uint32_t)__builtin_bswap32(arg) 29 # define __net_swap_int16(arg) (uint16_t)__builtin_bswap16(arg) 30 #else 31 extern unsigned long __swap_int32(unsigned long); /* private */ 32 extern uint16_t __swap_int16(uint16_t); /* private */ 33 # define __net_swap_int32(arg) __swap_int32(arg) 34 # define __net_swap_int16(arg) __swap_int16(arg) 35 #endif 36 37 #ifndef htonl 38 # if BYTE_ORDER == LITTLE_ENDIAN 39 # define htonl(x) ((uint32_t)__net_swap_int32(x)) 40 # define ntohl(x) ((uint32_t)__net_swap_int32(x)) 41 # define htons(x) __net_swap_int16(x) 42 # define ntohs(x) __net_swap_int16(x) 43 # elif BYTE_ORDER == BIG_ENDIAN 44 # define htonl(x) (x) 45 # define ntohl(x) (x) 46 # define htons(x) (x) 47 # define ntohs(x) (x) 48 # else 49 # error Unknown byte order. 50 # endif 51 #endif 52 53 54 /* Protocol definitions */ 55 #define IPPROTO_IP 0 /* 0, IPv4 */ 56 #define IPPROTO_HOPOPTS 0 /* 0, IPv6 hop-by-hop options */ 57 #define IPPROTO_ICMP 1 /* 1, ICMP (v4) */ 58 #define IPPROTO_IGMP 2 /* 2, IGMP (group management) */ 59 #define IPPROTO_TCP 6 /* 6, tcp */ 60 #define IPPROTO_UDP 17 /* 17, UDP */ 61 #define IPPROTO_IPV6 41 /* 41, IPv6 in IPv6 */ 62 #define IPPROTO_ROUTING 43 /* 43, Routing */ 63 #define IPPROTO_FRAGMENT 44 /* 44, IPv6 fragmentation header */ 64 #define IPPROTO_ESP 50 /* 50, Encap Sec. Payload */ 65 #define IPPROTO_AH 51 /* 51, Auth Header */ 66 #define IPPROTO_ICMPV6 58 /* 58, IPv6 ICMP */ 67 #define IPPROTO_NONE 59 /* 59, IPv6 no next header */ 68 #define IPPROTO_DSTOPTS 60 /* 60, IPv6 destination option */ 69 #define IPPROTO_ETHERIP 97 /* 97, Ethernet in IPv4 */ 70 #define IPPROTO_RAW 255 /* 255 */ 71 72 #define IPPROTO_MAX 256 73 74 75 /* Port numbers */ 76 77 #define IPPORT_RESERVED 1024 78 /* < IPPORT_RESERVED are privileged and should be accessible only by root */ 79 #define IPPORT_USERRESERVED 49151 80 /* > IPPORT_USERRESERVED are reserved for servers, though not requiring 81 * privileged status 82 */ 83 84 /* IP Version 4 address */ 85 struct in_addr { 86 in_addr_t s_addr; 87 }; 88 89 /* IP Version 4 socket address */ 90 struct sockaddr_in { 91 uint8_t sin_len; 92 uint8_t sin_family; 93 uint16_t sin_port; 94 struct in_addr sin_addr; 95 int8_t sin_zero[24]; 96 }; 97 98 99 /* RFC 3678 - Socket Interface Extensions for Multicast Source Filters */ 100 101 struct ip_mreq { 102 struct in_addr imr_multiaddr; /* IP address of group */ 103 struct in_addr imr_interface; /* IP address of interface */ 104 }; 105 106 struct ip_mreq_source { 107 struct in_addr imr_multiaddr; /* IP address of group */ 108 struct in_addr imr_sourceaddr; /* IP address of source */ 109 struct in_addr imr_interface; /* IP address of interface */ 110 }; 111 112 struct group_req { 113 uint32_t gr_interface; /* interface index */ 114 struct sockaddr_storage gr_group; /* group address */ 115 }; 116 117 struct group_source_req { 118 uint32_t gsr_interface; /* interface index */ 119 struct sockaddr_storage gsr_group; /* group address */ 120 struct sockaddr_storage gsr_source; /* source address */ 121 }; 122 123 /* 124 * Options for use with [gs]etsockopt at the IP level. 125 * First word of comment is data type; bool is stored in int. 126 */ 127 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 128 #define IP_HDRINCL 2 /* int; header is included with data */ 129 #define IP_TOS 3 130 /* int; IP type of service and preced. */ 131 #define IP_TTL 4 /* int; IP time to live */ 132 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 133 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 134 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 135 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 136 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 137 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 138 #define IP_MULTICAST_LOOP 11 139 /* u_char; set/get IP multicast loopback */ 140 #define IP_ADD_MEMBERSHIP 12 141 /* ip_mreq; add an IP group membership */ 142 #define IP_DROP_MEMBERSHIP 13 143 /* ip_mreq; drop an IP group membership */ 144 #define IP_BLOCK_SOURCE 14 /* ip_mreq_source */ 145 #define IP_UNBLOCK_SOURCE 15 /* ip_mreq_source */ 146 #define IP_ADD_SOURCE_MEMBERSHIP 16 /* ip_mreq_source */ 147 #define IP_DROP_SOURCE_MEMBERSHIP 17 /* ip_mreq_source */ 148 #define MCAST_JOIN_GROUP 18 /* group_req */ 149 #define MCAST_BLOCK_SOURCE 19 /* group_source_req */ 150 #define MCAST_UNBLOCK_SOURCE 20 /* group_source_req */ 151 #define MCAST_LEAVE_GROUP 21 /* group_req */ 152 #define MCAST_JOIN_SOURCE_GROUP 22 /* group_source_req */ 153 #define MCAST_LEAVE_SOURCE_GROUP 23 /* group_source_req */ 154 155 /* IPPROTO_IPV6 options */ 156 #define IPV6_MULTICAST_IF 24 /* int */ 157 #define IPV6_MULTICAST_HOPS 25 /* int */ 158 #define IPV6_MULTICAST_LOOP 26 /* int */ 159 160 #define IPV6_UNICAST_HOPS 27 /* int */ 161 #define IPV6_JOIN_GROUP 28 /* struct ipv6_mreq */ 162 #define IPV6_LEAVE_GROUP 29 /* struct ipv6_mreq */ 163 #define IPV6_V6ONLY 30 /* int */ 164 165 #define IPV6_PKTINFO 31 /* struct ipv6_pktinfo */ 166 #define IPV6_RECVPKTINFO 32 /* struct ipv6_pktinfo */ 167 #define IPV6_HOPLIMIT 33 /* int */ 168 #define IPV6_RECVHOPLIMIT 34 /* int */ 169 170 #define IPV6_HOPOPTS 35 /* struct ip6_hbh */ 171 #define IPV6_DSTOPTS 36 /* struct ip6_dest */ 172 #define IPV6_RTHDR 37 /* struct ip6_rthdr */ 173 174 #define INADDR_ANY ((in_addr_t)0x00000000) 175 #define INADDR_LOOPBACK ((in_addr_t)0x7f000001) 176 #define INADDR_BROADCAST ((in_addr_t)0xffffffff) /* must be masked */ 177 178 #define INADDR_UNSPEC_GROUP ((in_addr_t)0xe0000000) /* 224.0.0.0 */ 179 #define INADDR_ALLHOSTS_GROUP ((in_addr_t)0xe0000001) /* 224.0.0.1 */ 180 #define INADDR_ALLROUTERS_GROUP ((in_addr_t)0xe0000002) /* 224.0.0.2 */ 181 #define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */ 182 183 #define IN_LOOPBACKNET 127 184 185 #define INADDR_NONE ((in_addr_t)0xffffffff) 186 187 #define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0) 188 #define IN_CLASSA_NET 0xff000000 189 #define IN_CLASSA_NSHIFT 24 190 #define IN_CLASSA_HOST 0x00ffffff 191 #define IN_CLASSA_MAX 128 192 193 #define IN_CLASSB(i) (((in_addr_t)(i) & 0xc0000000) == 0x80000000) 194 #define IN_CLASSB_NET 0xffff0000 195 #define IN_CLASSB_NSHIFT 16 196 #define IN_CLASSB_HOST 0x0000ffff 197 #define IN_CLASSB_MAX 65536 198 199 #define IN_CLASSC(i) (((in_addr_t)(i) & 0xe0000000) == 0xc0000000) 200 #define IN_CLASSC_NET 0xffffff00 201 #define IN_CLASSC_NSHIFT 8 202 #define IN_CLASSC_HOST 0x000000ff 203 204 #define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) 205 /* These ones aren't really net and host fields, but routing needn't know. */ 206 #define IN_CLASSD_NET 0xf0000000 207 #define IN_CLASSD_NSHIFT 28 208 #define IN_CLASSD_HOST 0x0fffffff 209 210 #define IN_MULTICAST(i) IN_CLASSD(i) 211 212 #define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 213 #define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 214 215 #define IP_MAX_MEMBERSHIPS 20 216 217 /* maximal length of the string representation of an IPv4 address */ 218 #define INET_ADDRSTRLEN 16 219 220 /* some helpful macro's :) */ 221 #define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 222 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 223 #define satosin(sa) ((struct sockaddr_in *)(sa)) 224 #define sintosa(sin) ((struct sockaddr *)(sin)) 225 226 #ifdef __cplusplus 227 } 228 #endif 229 230 #endif /* _NETINET_IN_H_ */ 231