1 /* in.h */ 2 3 #ifndef _NETINET_IN_H_ 4 #define _NETINET_IN_H_ 5 6 #include <sys/types.h> 7 #include <net/if.h> 8 #include <endian.h> 9 #include <stdint.h> 10 11 /* RFC 2553 states that these must be available through <netinet/in.h> */ 12 #include <netinet6/in6.h> 13 14 #ifdef __cplusplus 15 extern "C" { 16 #endif 17 18 typedef uint16_t in_port_t; 19 typedef uint32_t in_addr_t; 20 21 /* We can't include <ByteOrder.h> since we are a posix file, 22 * and we are not allowed to import all the BeOS types here. 23 */ 24 #ifndef htonl 25 extern uint32_t __swap_int32(uint32_t); /* private */ 26 extern uint16_t __swap_int16(uint16_t); /* private */ 27 #if BYTE_ORDER == LITTLE_ENDIAN 28 #define htonl(x) __swap_int32(x) 29 #define ntohl(x) __swap_int32(x) 30 #define htons(x) __swap_int16(x) 31 #define ntohs(x) __swap_int16(x) 32 #elif BYTE_ORDER == BIG_ENDIAN 33 #define htonl(x) (x) 34 #define ntohl(x) (x) 35 #define htons(x) (x) 36 #define ntohs(x) (x) 37 #else 38 #error Unknown byte order. 39 #endif 40 #endif 41 42 43 /* Protocol definitions - add to as required... */ 44 #define IPPROTO_IP 0 /* 0, IPv4 */ 45 #define IPPROTO_ICMP 1 /* 1, ICMP (v4) */ 46 #define IPPROTO_IGMP 2 /* 2, IGMP (group management) */ 47 #define IPPROTO_TCP 6 /* 6, tcp */ 48 #define IPPROTO_UDP 17 /* 17, UDP */ 49 #define IPPROTO_IPV6 41 /* 41, IPv6 in IPv6 */ 50 #define IPPROTO_ROUTING 43 /* 43, Routing */ 51 #define IPPROTO_ICMPV6 58 /* 58, IPv6 ICMP */ 52 #define IPPROTO_ETHERIP 97 /* 97, Ethernet in IPv4 */ 53 #define IPPROTO_RAW 255 /* 255 */ 54 55 #define IPPROTO_MAX 256 56 57 /* Port numbers... 58 * < IPPORT_RESERVED are privileged and should be 59 * accessible only by root 60 * > IPPORT_USERRESERVED are reserved for servers, though 61 * not requiring privileged status 62 */ 63 64 #define IPPORT_RESERVED 1024 65 #define IPPORT_USERRESERVED 49151 66 67 /* This is an IPv4 address structure. Why is it a structure? 68 * Historical reasons. 69 */ 70 struct in_addr { 71 in_addr_t s_addr; 72 }; 73 74 /* 75 * IP Version 4 socket address. 76 */ 77 struct sockaddr_in { 78 uint8_t sin_len; 79 uint8_t sin_family; 80 uint16_t sin_port; 81 struct in_addr sin_addr; 82 int8_t sin_zero[24]; 83 }; 84 /* the address is therefore at sin_addr.s_addr */ 85 86 /* RFC 3678 - Socket Interface Extensions for Multicast Source Filters */ 87 88 struct ip_mreq { 89 struct in_addr imr_multiaddr; /* IP address of group */ 90 struct in_addr imr_interface; /* IP address of interface */ 91 }; 92 93 struct ip_mreq_source { 94 struct in_addr imr_multiaddr; /* IP address of group */ 95 struct in_addr imr_sourceaddr; /* IP address of source */ 96 struct in_addr imr_interface; /* IP address of interface */ 97 }; 98 99 struct group_req { 100 uint32_t gr_interface; /* interface index */ 101 struct sockaddr_storage gr_group; /* group address */ 102 }; 103 104 struct group_source_req { 105 uint32_t gsr_interface; /* interface index */ 106 struct sockaddr_storage gsr_group; /* group address */ 107 struct sockaddr_storage gsr_source; /* source address */ 108 }; 109 110 /* 111 * Options for use with [gs]etsockopt at the IP level. 112 * First word of comment is data type; bool is stored in int. 113 */ 114 #define IP_OPTIONS 1 /* buf/ip_opts; set/get IP options */ 115 #define IP_HDRINCL 2 /* int; header is included with data */ 116 #define IP_TOS 3 /* int; IP type of service and preced. */ 117 #define IP_TTL 4 /* int; IP time to live */ 118 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 119 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 120 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 121 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 122 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 123 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 124 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 125 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 126 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 127 #define IP_BLOCK_SOURCE 14 /* ip_mreq_source */ 128 #define IP_UNBLOCK_SOURCE 15 /* ip_mreq_source */ 129 #define IP_ADD_SOURCE_MEMBERSHIP 16 /* ip_mreq_source */ 130 #define IP_DROP_SOURCE_MEMBERSHIP 17 /* ip_mreq_source */ 131 #define MCAST_JOIN_GROUP 18 /* group_req */ 132 #define MCAST_BLOCK_SOURCE 19 /* group_source_req */ 133 #define MCAST_UNBLOCK_SOURCE 20 /* group_source_req */ 134 #define MCAST_LEAVE_GROUP 21 /* group_req */ 135 #define MCAST_JOIN_SOURCE_GROUP 22 /* group_source_req */ 136 #define MCAST_LEAVE_SOURCE_GROUP 23 /* group_source_req */ 137 138 #define IPV6_MULTICAST_IF 24 /* int */ 139 #define IPV6_MULTICAST_HOPS 25 /* int */ 140 #define IPV6_MULTICAST_LOOP 26 /* int */ 141 142 #define __IPADDR(x) ((uint32_t)htonl((uint32_t)(x))) 143 144 #define INADDR_ANY __IPADDR(0x00000000) 145 #define INADDR_LOOPBACK __IPADDR(0x7f000001) 146 #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ 147 148 #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ 149 #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ 150 #define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */ 151 #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ 152 153 #define IN_LOOPBACKNET 127 /* official! */ 154 155 #define INADDR_NONE __IPADDR(0xffffffff) 156 157 #define IN_CLASSA(i) (((uint32_t)(i) & __IPADDR(0x80000000)) == \ 158 __IPADDR(0x00000000)) 159 #define IN_CLASSA_NET __IPADDR(0xff000000) 160 #define IN_CLASSA_NSHIFT 24 161 #define IN_CLASSA_HOST __IPADDR(0x00ffffff) 162 #define IN_CLASSA_MAX 128 163 164 #define IN_CLASSB(i) (((uint32_t)(i) & __IPADDR(0xc0000000)) == \ 165 __IPADDR(0x80000000)) 166 #define IN_CLASSB_NET __IPADDR(0xffff0000) 167 #define IN_CLASSB_NSHIFT 16 168 #define IN_CLASSB_HOST __IPADDR(0x0000ffff) 169 #define IN_CLASSB_MAX 65536 170 171 #define IN_CLASSC(i) (((uint32_t)(i) & __IPADDR(0xe0000000)) == \ 172 __IPADDR(0xc0000000)) 173 #define IN_CLASSC_NET __IPADDR(0xffffff00) 174 #define IN_CLASSC_NSHIFT 8 175 #define IN_CLASSC_HOST __IPADDR(0x000000ff) 176 177 #define IN_CLASSD(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \ 178 __IPADDR(0xe0000000)) 179 /* These ones aren't really net and host fields, but routing needn't know. */ 180 #define IN_CLASSD_NET __IPADDR(0xf0000000) 181 #define IN_CLASSD_NSHIFT 28 182 #define IN_CLASSD_HOST __IPADDR(0x0fffffff) 183 184 #define IN_MULTICAST(i) IN_CLASSD(i) 185 186 #define IN_EXPERIMENTAL(i) (((uint32_t)(i) & 0xf0000000) == 0xf0000000) 187 #define IN_BADCLASS(i) (((uint32_t)(i) & 0xf0000000) == 0xf0000000) 188 189 #define IP_MAX_MEMBERSHIPS 20 190 191 /* some helpful macro's :) */ 192 #define in_hosteq(s,t) ((s).s_addr == (t).s_addr) 193 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 194 #define satosin(sa) ((struct sockaddr_in *)(sa)) 195 #define sintosa(sin) ((struct sockaddr *)(sin)) 196 197 #ifdef __cplusplus 198 } 199 #endif 200 201 #endif /* NETINET_IN_H */ 202