1 /* 2 * Copyright 2002-2009, 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 */ 28 #ifndef htonl 29 /* extern uint32_t __swap_int32(uint32_t); */ /* private */ 30 extern unsigned long __swap_int32(unsigned long); /* private */ 31 extern uint16_t __swap_int16(uint16_t); /* private */ 32 #if BYTE_ORDER == LITTLE_ENDIAN 33 #define htonl(x) __swap_int32(x) 34 #define ntohl(x) __swap_int32(x) 35 #define htons(x) __swap_int16(x) 36 #define ntohs(x) __swap_int16(x) 37 #elif BYTE_ORDER == BIG_ENDIAN 38 #define htonl(x) (x) 39 #define ntohl(x) (x) 40 #define htons(x) (x) 41 #define ntohs(x) (x) 42 #else 43 #error Unknown byte order. 44 #endif 45 #endif 46 47 48 /* Protocol definitions */ 49 #define IPPROTO_IP 0 /* 0, IPv4 */ 50 #define IPPROTO_ICMP 1 /* 1, ICMP (v4) */ 51 #define IPPROTO_IGMP 2 /* 2, IGMP (group management) */ 52 #define IPPROTO_TCP 6 /* 6, tcp */ 53 #define IPPROTO_UDP 17 /* 17, UDP */ 54 #define IPPROTO_IPV6 41 /* 41, IPv6 in IPv6 */ 55 #define IPPROTO_ROUTING 43 /* 43, Routing */ 56 #define IPPROTO_ICMPV6 58 /* 58, IPv6 ICMP */ 57 #define IPPROTO_ETHERIP 97 /* 97, Ethernet in IPv4 */ 58 #define IPPROTO_RAW 255 /* 255 */ 59 60 #define IPPROTO_MAX 256 61 62 63 /* Port numbers */ 64 65 #define IPPORT_RESERVED 1024 66 /* < IPPORT_RESERVED are privileged and should be accessible only by root */ 67 #define IPPORT_USERRESERVED 49151 68 /* > IPPORT_USERRESERVED are reserved for servers, though not requiring 69 * privileged status 70 */ 71 72 /* IP Version 4 address */ 73 struct in_addr { 74 in_addr_t s_addr; 75 }; 76 77 /* IP Version 4 socket address */ 78 struct sockaddr_in { 79 uint8_t sin_len; 80 uint8_t sin_family; 81 uint16_t sin_port; 82 struct in_addr sin_addr; 83 int8_t sin_zero[24]; 84 }; 85 86 87 /* RFC 3678 - Socket Interface Extensions for Multicast Source Filters */ 88 89 struct ip_mreq { 90 struct in_addr imr_multiaddr; /* IP address of group */ 91 struct in_addr imr_interface; /* IP address of interface */ 92 }; 93 94 struct ip_mreq_source { 95 struct in_addr imr_multiaddr; /* IP address of group */ 96 struct in_addr imr_sourceaddr; /* IP address of source */ 97 struct in_addr imr_interface; /* IP address of interface */ 98 }; 99 100 struct group_req { 101 uint32_t gr_interface; /* interface index */ 102 struct sockaddr_storage gr_group; /* group address */ 103 }; 104 105 struct group_source_req { 106 uint32_t gsr_interface; /* interface index */ 107 struct sockaddr_storage gsr_group; /* group address */ 108 struct sockaddr_storage gsr_source; /* source address */ 109 }; 110 111 /* 112 * Options for use with [gs]etsockopt at the IP level. 113 * First word of comment is data type; bool is stored in int. 114 */ 115 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 116 #define IP_HDRINCL 2 /* int; header is included with data */ 117 #define IP_TOS 3 118 /* int; IP type of service and preced. */ 119 #define IP_TTL 4 /* int; IP time to live */ 120 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 121 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 122 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 123 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 124 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 125 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 126 #define IP_MULTICAST_LOOP 11 127 /* u_char; set/get IP multicast loopback */ 128 #define IP_ADD_MEMBERSHIP 12 129 /* ip_mreq; add an IP group membership */ 130 #define IP_DROP_MEMBERSHIP 13 131 /* ip_mreq; drop an IP group membership */ 132 #define IP_BLOCK_SOURCE 14 /* ip_mreq_source */ 133 #define IP_UNBLOCK_SOURCE 15 /* ip_mreq_source */ 134 #define IP_ADD_SOURCE_MEMBERSHIP 16 /* ip_mreq_source */ 135 #define IP_DROP_SOURCE_MEMBERSHIP 17 /* ip_mreq_source */ 136 #define MCAST_JOIN_GROUP 18 /* group_req */ 137 #define MCAST_BLOCK_SOURCE 19 /* group_source_req */ 138 #define MCAST_UNBLOCK_SOURCE 20 /* group_source_req */ 139 #define MCAST_LEAVE_GROUP 21 /* group_req */ 140 #define MCAST_JOIN_SOURCE_GROUP 22 /* group_source_req */ 141 #define MCAST_LEAVE_SOURCE_GROUP 23 /* group_source_req */ 142 143 #define IPV6_MULTICAST_IF 24 /* int */ 144 #define IPV6_MULTICAST_HOPS 25 /* int */ 145 #define IPV6_MULTICAST_LOOP 26 /* int */ 146 147 #define INADDR_ANY ((in_addr_t)0x00000000) 148 #define INADDR_LOOPBACK ((in_addr_t)0x7f000001) 149 #define INADDR_BROADCAST ((in_addr_t)0xffffffff) /* must be masked */ 150 151 #define INADDR_UNSPEC_GROUP ((in_addr_t)0xe0000000) /* 224.0.0.0 */ 152 #define INADDR_ALLHOSTS_GROUP ((in_addr_t)0xe0000001) /* 224.0.0.1 */ 153 #define INADDR_ALLROUTERS_GROUP ((in_addr_t)0xe0000002) /* 224.0.0.2 */ 154 #define INADDR_MAX_LOCAL_GROUP ((in_addr_t)0xe00000ff) /* 224.0.0.255 */ 155 156 #define IN_LOOPBACKNET 127 157 158 #define INADDR_NONE ((in_addr_t)0xffffffff) 159 160 #define IN_CLASSA(i) (((in_addr_t)(i) & 0x80000000) == 0) 161 #define IN_CLASSA_NET 0xff000000 162 #define IN_CLASSA_NSHIFT 24 163 #define IN_CLASSA_HOST 0x00ffffff 164 #define IN_CLASSA_MAX 128 165 166 #define IN_CLASSB(i) (((in_addr_t)(i) & 0xc0000000) == 0x80000000) 167 #define IN_CLASSB_NET 0xffff0000 168 #define IN_CLASSB_NSHIFT 16 169 #define IN_CLASSB_HOST 0x0000ffff 170 #define IN_CLASSB_MAX 65536 171 172 #define IN_CLASSC(i) (((in_addr_t)(i) & 0xe0000000) == 0xc0000000) 173 #define IN_CLASSC_NET 0xffffff00 174 #define IN_CLASSC_NSHIFT 8 175 #define IN_CLASSC_HOST 0x000000ff 176 177 #define IN_CLASSD(i) (((in_addr_t)(i) & 0xf0000000) == 0xe0000000) 178 /* These ones aren't really net and host fields, but routing needn't know. */ 179 #define IN_CLASSD_NET 0xf0000000 180 #define IN_CLASSD_NSHIFT 28 181 #define IN_CLASSD_HOST 0x0fffffff 182 183 #define IN_MULTICAST(i) IN_CLASSD(i) 184 185 #define IN_EXPERIMENTAL(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 186 #define IN_BADCLASS(i) (((in_addr_t)(i) & 0xf0000000) == 0xf0000000) 187 188 #define IP_MAX_MEMBERSHIPS 20 189 190 /* maximal length of the string representation of an IPv4 address */ 191 #define INET_ADDRSTRLEN 16 192 193 /* some helpful macro's :) */ 194 #define in_hosteq(s, t) ((s).s_addr == (t).s_addr) 195 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 196 #define satosin(sa) ((struct sockaddr_in *)(sa)) 197 #define sintosa(sin) ((struct sockaddr *)(sin)) 198 199 #ifdef __cplusplus 200 } 201 #endif 202 203 #endif /* _NETINET_IN_H_ */ 204