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 unsigned long __swap_int32(unsigned long); /* private */ 27 extern uint16_t __swap_int16(uint16_t); /* private */ 28 #if BYTE_ORDER == LITTLE_ENDIAN 29 #define htonl(x) __swap_int32(x) 30 #define ntohl(x) __swap_int32(x) 31 #define htons(x) __swap_int16(x) 32 #define ntohs(x) __swap_int16(x) 33 #elif BYTE_ORDER == BIG_ENDIAN 34 #define htonl(x) (x) 35 #define ntohl(x) (x) 36 #define htons(x) (x) 37 #define ntohs(x) (x) 38 #else 39 #error Unknown byte order. 40 #endif 41 #endif 42 43 44 /* Protocol definitions - add to as required... */ 45 #define IPPROTO_IP 0 /* 0, IPv4 */ 46 #define IPPROTO_ICMP 1 /* 1, ICMP (v4) */ 47 #define IPPROTO_IGMP 2 /* 2, IGMP (group management) */ 48 #define IPPROTO_TCP 6 /* 6, tcp */ 49 #define IPPROTO_UDP 17 /* 17, UDP */ 50 #define IPPROTO_IPV6 41 /* 41, IPv6 in IPv6 */ 51 #define IPPROTO_ROUTING 43 /* 43, Routing */ 52 #define IPPROTO_ICMPV6 58 /* 58, IPv6 ICMP */ 53 #define IPPROTO_ETHERIP 97 /* 97, Ethernet in IPv4 */ 54 #define IPPROTO_RAW 255 /* 255 */ 55 56 #define IPPROTO_MAX 256 57 58 /* Port numbers... 59 * < IPPORT_RESERVED are privileged and should be 60 * accessible only by root 61 * > IPPORT_USERRESERVED are reserved for servers, though 62 * not requiring privileged status 63 */ 64 65 #define IPPORT_RESERVED 1024 66 #define IPPORT_USERRESERVED 49151 67 68 /* This is an IPv4 address structure. Why is it a structure? 69 * Historical reasons. 70 */ 71 struct in_addr { 72 in_addr_t s_addr; 73 }; 74 75 /* 76 * IP Version 4 socket address. 77 */ 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 /* the address is therefore at sin_addr.s_addr */ 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 /* int; IP type of service and preced. */ 118 #define IP_TTL 4 /* int; IP time to live */ 119 #define IP_RECVOPTS 5 /* bool; receive all IP opts w/dgram */ 120 #define IP_RECVRETOPTS 6 /* bool; receive IP opts for response */ 121 #define IP_RECVDSTADDR 7 /* bool; receive IP dst addr w/dgram */ 122 #define IP_RETOPTS 8 /* ip_opts; set/get IP options */ 123 #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ 124 #define IP_MULTICAST_TTL 10 /* u_char; set/get IP multicast ttl */ 125 #define IP_MULTICAST_LOOP 11 /* u_char; set/get IP multicast loopback */ 126 #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ 127 #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ 128 #define IP_BLOCK_SOURCE 14 /* ip_mreq_source */ 129 #define IP_UNBLOCK_SOURCE 15 /* ip_mreq_source */ 130 #define IP_ADD_SOURCE_MEMBERSHIP 16 /* ip_mreq_source */ 131 #define IP_DROP_SOURCE_MEMBERSHIP 17 /* ip_mreq_source */ 132 #define MCAST_JOIN_GROUP 18 /* group_req */ 133 #define MCAST_BLOCK_SOURCE 19 /* group_source_req */ 134 #define MCAST_UNBLOCK_SOURCE 20 /* group_source_req */ 135 #define MCAST_LEAVE_GROUP 21 /* group_req */ 136 #define MCAST_JOIN_SOURCE_GROUP 22 /* group_source_req */ 137 #define MCAST_LEAVE_SOURCE_GROUP 23 /* group_source_req */ 138 139 #define IPV6_MULTICAST_IF 24 /* int */ 140 #define IPV6_MULTICAST_HOPS 25 /* int */ 141 #define IPV6_MULTICAST_LOOP 26 /* int */ 142 143 #define __IPADDR(x) ((uint32_t)htonl((uint32_t)(x))) 144 145 #define INADDR_ANY __IPADDR(0x00000000) 146 #define INADDR_LOOPBACK __IPADDR(0x7f000001) 147 #define INADDR_BROADCAST __IPADDR(0xffffffff) /* must be masked */ 148 149 #define INADDR_UNSPEC_GROUP __IPADDR(0xe0000000) /* 224.0.0.0 */ 150 #define INADDR_ALLHOSTS_GROUP __IPADDR(0xe0000001) /* 224.0.0.1 */ 151 #define INADDR_ALLROUTERS_GROUP __IPADDR(0xe0000002) /* 224.0.0.2 */ 152 #define INADDR_MAX_LOCAL_GROUP __IPADDR(0xe00000ff) /* 224.0.0.255 */ 153 154 #define IN_LOOPBACKNET 127 /* official! */ 155 156 #define INADDR_NONE __IPADDR(0xffffffff) 157 158 #define IN_CLASSA(i) (((uint32_t)(i) & __IPADDR(0x80000000)) == \ 159 __IPADDR(0x00000000)) 160 #define IN_CLASSA_NET __IPADDR(0xff000000) 161 #define IN_CLASSA_NSHIFT 24 162 #define IN_CLASSA_HOST __IPADDR(0x00ffffff) 163 #define IN_CLASSA_MAX 128 164 165 #define IN_CLASSB(i) (((uint32_t)(i) & __IPADDR(0xc0000000)) == \ 166 __IPADDR(0x80000000)) 167 #define IN_CLASSB_NET __IPADDR(0xffff0000) 168 #define IN_CLASSB_NSHIFT 16 169 #define IN_CLASSB_HOST __IPADDR(0x0000ffff) 170 #define IN_CLASSB_MAX 65536 171 172 #define IN_CLASSC(i) (((uint32_t)(i) & __IPADDR(0xe0000000)) == \ 173 __IPADDR(0xc0000000)) 174 #define IN_CLASSC_NET __IPADDR(0xffffff00) 175 #define IN_CLASSC_NSHIFT 8 176 #define IN_CLASSC_HOST __IPADDR(0x000000ff) 177 178 #define IN_CLASSD(i) (((uint32_t)(i) & __IPADDR(0xf0000000)) == \ 179 __IPADDR(0xe0000000)) 180 /* These ones aren't really net and host fields, but routing needn't know. */ 181 #define IN_CLASSD_NET __IPADDR(0xf0000000) 182 #define IN_CLASSD_NSHIFT 28 183 #define IN_CLASSD_HOST __IPADDR(0x0fffffff) 184 185 #define IN_MULTICAST(i) IN_CLASSD(i) 186 187 #define IN_EXPERIMENTAL(i) (((uint32_t)(i) & 0xf0000000) == 0xf0000000) 188 #define IN_BADCLASS(i) (((uint32_t)(i) & 0xf0000000) == 0xf0000000) 189 190 #define IP_MAX_MEMBERSHIPS 20 191 192 /* some helpful macro's :) */ 193 #define in_hosteq(s,t) ((s).s_addr == (t).s_addr) 194 #define in_nullhost(x) ((x).s_addr == INADDR_ANY) 195 #define satosin(sa) ((struct sockaddr_in *)(sa)) 196 #define sintosa(sin) ((struct sockaddr *)(sin)) 197 198 #ifdef __cplusplus 199 } 200 #endif 201 202 #endif /* NETINET_IN_H */ 203