include/netinet/in.h

   1 #ifndef _NETINET_IN_H
   2 #define _NETINET_IN_H
   3
   4 #ifdef __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <features.h>
   9 #include <inttypes.h>
  10 #include <sys/socket.h>
  11
  12 typedef uint16_t in_port_t;
  13 typedef uint32_t in_addr_t;
  14 struct in_addr { in_addr_t s_addr; };
  15
  16 struct sockaddr_in {
  17         sa_family_t sin_family;
  18         in_port_t sin_port;
  19         struct in_addr sin_addr;
  20         uint8_t sin_zero[8];
  21 };
  22
  23 struct in6_addr {
  24         union {
  25                 uint8_t __s6_addr[16];
  26                 uint16_t __s6_addr16[8];
  27                 uint32_t __s6_addr32[4];
  28         } __in6_union;
  29 };
  30 #define s6_addr __in6_union.__s6_addr
  31 #define s6_addr16 __in6_union.__s6_addr16
  32 #define s6_addr32 __in6_union.__s6_addr32
  33
  34 struct sockaddr_in6 {
  35         sa_family_t     sin6_family;
  36         in_port_t       sin6_port;
  37         uint32_t        sin6_flowinfo;
  38         struct in6_addr sin6_addr;
  39         uint32_t        sin6_scope_id;
  40 };
  41
  42 struct ipv6_mreq {
  43         struct in6_addr ipv6mr_multiaddr;
  44         unsigned        ipv6mr_interface;
  45 };
  46
  47 #define INADDR_ANY        ((in_addr_t) 0x00000000)
  48 #define INADDR_BROADCAST  ((in_addr_t) 0xffffffff)
  49 #define INADDR_NONE       ((in_addr_t) 0xffffffff)
  50 #define INADDR_LOOPBACK   ((in_addr_t) 0x7f000001)
  51
  52 #define INADDR_UNSPEC_GROUP     ((in_addr_t) 0xe0000000)
  53 #define INADDR_ALLHOSTS_GROUP   ((in_addr_t) 0xe0000001)
  54 #define INADDR_ALLRTRS_GROUP    ((in_addr_t) 0xe0000002)
  55 #define INADDR_ALLSNOOPERS_GROUP ((in_addr_t) 0xe000006a)
  56 #define INADDR_MAX_LOCAL_GROUP  ((in_addr_t) 0xe00000ff)
  57
  58 #define IN6ADDR_ANY_INIT      { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } }
  59 #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } }
  60
  61 extern const struct in6_addr in6addr_any, in6addr_loopback;
  62
  63 #define INET_ADDRSTRLEN  16
  64 #define INET6_ADDRSTRLEN 46
  65
  66 uint32_t htonl(uint32_t);
  67 uint16_t htons(uint16_t);
  68 uint32_t ntohl(uint32_t);
  69 uint16_t ntohs(uint16_t);
  70
  71 #define IPPORT_RESERVED 1024
  72
  73 #define IPPROTO_IP       0
  74 #define IPPROTO_HOPOPTS  0
  75 #define IPPROTO_ICMP     1
  76 #define IPPROTO_IGMP     2
  77 #define IPPROTO_IPIP     4
  78 #define IPPROTO_TCP      6
  79 #define IPPROTO_EGP      8
  80 #define IPPROTO_PUP      12
  81 #define IPPROTO_UDP      17
  82 #define IPPROTO_IDP      22
  83 #define IPPROTO_TP       29
  84 #define IPPROTO_DCCP     33
  85 #define IPPROTO_IPV6     41
  86 #define IPPROTO_ROUTING  43
  87 #define IPPROTO_FRAGMENT 44
  88 #define IPPROTO_RSVP     46
  89 #define IPPROTO_GRE      47
  90 #define IPPROTO_ESP      50
  91 #define IPPROTO_AH       51
  92 #define IPPROTO_ICMPV6   58
  93 #define IPPROTO_NONE     59
  94 #define IPPROTO_DSTOPTS  60
  95 #define IPPROTO_MTP      92
  96 #define IPPROTO_BEETPH   94
  97 #define IPPROTO_ENCAP    98
  98 #define IPPROTO_PIM      103
  99 #define IPPROTO_COMP     108
 100 #define IPPROTO_SCTP     132
 101 #define IPPROTO_MH       135
 102 #define IPPROTO_UDPLITE  136
 103 #define IPPROTO_MPLS     137
 104 #define IPPROTO_ETHERNET 143
 105 #define IPPROTO_RAW      255
 106 #define IPPROTO_MPTCP    262
 107 #define IPPROTO_MAX      263
 108
 109 #define IN6_IS_ADDR_UNSPECIFIED(a) \
 110         (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
 111          ((uint32_t *) (a))[2] == 0 && ((uint32_t *) (a))[3] == 0)
 112
 113 #define IN6_IS_ADDR_LOOPBACK(a) \
 114         (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
 115          ((uint32_t *) (a))[2] == 0 && \
 116          ((uint8_t *) (a))[12] == 0 && ((uint8_t *) (a))[13] == 0 && \
 117          ((uint8_t *) (a))[14] == 0 && ((uint8_t *) (a))[15] == 1 )
 118
 119 #define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
 120
 121 #define IN6_IS_ADDR_LINKLOCAL(a) \
 122         ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0x80)
 123
 124 #define IN6_IS_ADDR_SITELOCAL(a) \
 125         ((((uint8_t *) (a))[0]) == 0xfe && (((uint8_t *) (a))[1] & 0xc0) == 0xc0)
 126
 127 #define IN6_IS_ADDR_V4MAPPED(a) \
 128         (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
 129          ((uint8_t *) (a))[8] == 0 && ((uint8_t *) (a))[9] == 0 && \
 130          ((uint8_t *) (a))[10] == 0xff && ((uint8_t *) (a))[11] == 0xff)
 131
 132 #define IN6_IS_ADDR_V4COMPAT(a) \
 133         (((uint32_t *) (a))[0] == 0 && ((uint32_t *) (a))[1] == 0 && \
 134          ((uint32_t *) (a))[2] == 0 && ((uint8_t *) (a))[15] > 1)
 135
 136 #define IN6_IS_ADDR_MC_NODELOCAL(a) \
 137         (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x1))
 138
 139 #define IN6_IS_ADDR_MC_LINKLOCAL(a) \
 140         (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x2))
 141
 142 #define IN6_IS_ADDR_MC_SITELOCAL(a) \
 143         (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x5))
 144
 145 #define IN6_IS_ADDR_MC_ORGLOCAL(a) \
 146         (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0x8))
 147
 148 #define IN6_IS_ADDR_MC_GLOBAL(a) \
 149         (IN6_IS_ADDR_MULTICAST(a) && ((((uint8_t *) (a))[1] & 0xf) == 0xe))
 150
 151 #define __ARE_4_EQUAL(a,b) \
 152         (!( (0[a]-0[b]) | (1[a]-1[b]) | (2[a]-2[b]) | (3[a]-3[b]) ))
 153 #define IN6_ARE_ADDR_EQUAL(a,b) \
 154         __ARE_4_EQUAL((const uint32_t *)(a), (const uint32_t *)(b))
 155
 156 #define IN_CLASSA(a)            ((((in_addr_t)(a)) & 0x80000000) == 0)
 157 #define IN_CLASSA_NET           0xff000000
 158 #define IN_CLASSA_NSHIFT        24
 159 #define IN_CLASSA_HOST          (0xffffffff & ~IN_CLASSA_NET)
 160 #define IN_CLASSA_MAX           128
 161 #define IN_CLASSB(a)            ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000)
 162 #define IN_CLASSB_NET           0xffff0000
 163 #define IN_CLASSB_NSHIFT        16
 164 #define IN_CLASSB_HOST          (0xffffffff & ~IN_CLASSB_NET)
 165 #define IN_CLASSB_MAX           65536
 166 #define IN_CLASSC(a)            ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000)
 167 #define IN_CLASSC_NET           0xffffff00
 168 #define IN_CLASSC_NSHIFT        8
 169 #define IN_CLASSC_HOST          (0xffffffff & ~IN_CLASSC_NET)
 170 #define IN_CLASSD(a)            ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000)
 171 #define IN_MULTICAST(a)         IN_CLASSD(a)
 172 #define IN_EXPERIMENTAL(a)      ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000)
 173 #define IN_BADCLASS(a)          ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000)
 174
 175 #define IN_LOOPBACKNET 127
 176
 177
 178 #define IP_TOS             1
 179 #define IP_TTL             2
 180 #define IP_HDRINCL         3
 181 #define IP_OPTIONS         4
 182 #define IP_ROUTER_ALERT    5
 183 #define IP_RECVOPTS        6
 184 #define IP_RETOPTS         7
 185 #define IP_PKTINFO         8
 186 #define IP_PKTOPTIONS      9
 187 #define IP_PMTUDISC        10
 188 #define IP_MTU_DISCOVER    10
 189 #define IP_RECVERR         11
 190 #define IP_RECVTTL         12
 191 #define IP_RECVTOS         13
 192 #define IP_MTU             14
 193 #define IP_FREEBIND        15
 194 #define IP_IPSEC_POLICY    16
 195 #define IP_XFRM_POLICY     17
 196 #define IP_PASSSEC         18
 197 #define IP_TRANSPARENT     19
 198 #define IP_ORIGDSTADDR     20
 199 #define IP_RECVORIGDSTADDR IP_ORIGDSTADDR
 200 #define IP_MINTTL          21
 201 #define IP_NODEFRAG        22
 202 #define IP_CHECKSUM        23
 203 #define IP_BIND_ADDRESS_NO_PORT 24
 204 #define IP_RECVFRAGSIZE    25
 205 #define IP_MULTICAST_IF    32
 206 #define IP_MULTICAST_TTL   33
 207 #define IP_MULTICAST_LOOP  34
 208 #define IP_ADD_MEMBERSHIP  35
 209 #define IP_DROP_MEMBERSHIP 36
 210 #define IP_UNBLOCK_SOURCE  37
 211 #define IP_BLOCK_SOURCE    38
 212 #define IP_ADD_SOURCE_MEMBERSHIP  39
 213 #define IP_DROP_SOURCE_MEMBERSHIP 40
 214 #define IP_MSFILTER        41
 215 #define IP_MULTICAST_ALL   49
 216 #define IP_UNICAST_IF      50
 217
 218 #define IP_RECVRETOPTS IP_RETOPTS
 219
 220 #define IP_PMTUDISC_DONT   0
 221 #define IP_PMTUDISC_WANT   1
 222 #define IP_PMTUDISC_DO     2
 223 #define IP_PMTUDISC_PROBE  3
 224 #define IP_PMTUDISC_INTERFACE 4
 225 #define IP_PMTUDISC_OMIT   5
 226
 227 #define IP_DEFAULT_MULTICAST_TTL        1
 228 #define IP_DEFAULT_MULTICAST_LOOP       1
 229 #define IP_MAX_MEMBERSHIPS              20
 230
 231 struct ip_opts {
 232         struct in_addr ip_dst;
 233         char ip_opts[40];
 234 };
 235
 236 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 237
 238 #define MCAST_JOIN_GROUP   42
 239 #define MCAST_BLOCK_SOURCE 43
 240 #define MCAST_UNBLOCK_SOURCE      44
 241 #define MCAST_LEAVE_GROUP  45
 242 #define MCAST_JOIN_SOURCE_GROUP   46
 243 #define MCAST_LEAVE_SOURCE_GROUP  47
 244 #define MCAST_MSFILTER     48
 245
 246 #define MCAST_EXCLUDE 0
 247 #define MCAST_INCLUDE 1
 248
 249 struct ip_mreq {
 250         struct in_addr imr_multiaddr;
 251         struct in_addr imr_interface;
 252 };
 253
 254 struct ip_mreqn {
 255         struct in_addr imr_multiaddr;
 256         struct in_addr imr_address;
 257         int imr_ifindex;
 258 };
 259
 260 struct ip_mreq_source {
 261         struct in_addr imr_multiaddr;
 262         struct in_addr imr_interface;
 263         struct in_addr imr_sourceaddr;
 264 };
 265
 266 struct ip_msfilter {
 267         struct in_addr imsf_multiaddr;
 268         struct in_addr imsf_interface;
 269         uint32_t imsf_fmode;
 270         uint32_t imsf_numsrc;
 271         struct in_addr imsf_slist[1];
 272 };
 273 #define IP_MSFILTER_SIZE(numsrc) \
 274         (sizeof(struct ip_msfilter) - sizeof(struct in_addr) \
 275         + (numsrc) * sizeof(struct in_addr))
 276
 277 struct group_req {
 278         uint32_t gr_interface;
 279         struct sockaddr_storage gr_group;
 280 };
 281
 282 struct group_source_req {
 283         uint32_t gsr_interface;
 284         struct sockaddr_storage gsr_group;
 285         struct sockaddr_storage gsr_source;
 286 };
 287
 288 struct group_filter {
 289         uint32_t gf_interface;
 290         struct sockaddr_storage gf_group;
 291         uint32_t gf_fmode;
 292         uint32_t gf_numsrc;
 293         struct sockaddr_storage gf_slist[1];
 294 };
 295 #define GROUP_FILTER_SIZE(numsrc) \
 296         (sizeof(struct group_filter) - sizeof(struct sockaddr_storage) \
 297         + (numsrc) * sizeof(struct sockaddr_storage))
 298
 299 struct in_pktinfo {
 300         int ipi_ifindex;
 301         struct in_addr ipi_spec_dst;
 302         struct in_addr ipi_addr;
 303 };
 304
 305 struct in6_pktinfo {
 306         struct in6_addr ipi6_addr;
 307         unsigned ipi6_ifindex;
 308 };
 309
 310 struct ip6_mtuinfo {
 311         struct sockaddr_in6 ip6m_addr;
 312         uint32_t ip6m_mtu;
 313 };
 314 #endif
 315
 316 #define IPV6_ADDRFORM           1
 317 #define IPV6_2292PKTINFO        2
 318 #define IPV6_2292HOPOPTS        3
 319 #define IPV6_2292DSTOPTS        4
 320 #define IPV6_2292RTHDR          5
 321 #define IPV6_2292PKTOPTIONS     6
 322 #define IPV6_CHECKSUM           7
 323 #define IPV6_2292HOPLIMIT       8
 324 #define IPV6_NEXTHOP            9
 325 #define IPV6_AUTHHDR            10
 326 #define IPV6_UNICAST_HOPS       16
 327 #define IPV6_MULTICAST_IF       17
 328 #define IPV6_MULTICAST_HOPS     18
 329 #define IPV6_MULTICAST_LOOP     19
 330 #define IPV6_JOIN_GROUP         20
 331 #define IPV6_LEAVE_GROUP        21
 332 #define IPV6_ROUTER_ALERT       22
 333 #define IPV6_MTU_DISCOVER       23
 334 #define IPV6_MTU                24
 335 #define IPV6_RECVERR            25
 336 #define IPV6_V6ONLY             26
 337 #define IPV6_JOIN_ANYCAST       27
 338 #define IPV6_LEAVE_ANYCAST      28
 339 #define IPV6_MULTICAST_ALL      29
 340 #define IPV6_ROUTER_ALERT_ISOLATE 30
 341 #define IPV6_IPSEC_POLICY       34
 342 #define IPV6_XFRM_POLICY        35
 343 #define IPV6_HDRINCL            36
 344
 345 #define IPV6_RECVPKTINFO        49
 346 #define IPV6_PKTINFO            50
 347 #define IPV6_RECVHOPLIMIT       51
 348 #define IPV6_HOPLIMIT           52
 349 #define IPV6_RECVHOPOPTS        53
 350 #define IPV6_HOPOPTS            54
 351 #define IPV6_RTHDRDSTOPTS       55
 352 #define IPV6_RECVRTHDR          56
 353 #define IPV6_RTHDR              57
 354 #define IPV6_RECVDSTOPTS        58
 355 #define IPV6_DSTOPTS            59
 356 #define IPV6_RECVPATHMTU        60
 357 #define IPV6_PATHMTU            61
 358 #define IPV6_DONTFRAG           62
 359 #define IPV6_RECVTCLASS         66
 360 #define IPV6_TCLASS             67
 361 #define IPV6_AUTOFLOWLABEL      70
 362 #define IPV6_ADDR_PREFERENCES   72
 363 #define IPV6_MINHOPCOUNT        73
 364 #define IPV6_ORIGDSTADDR        74
 365 #define IPV6_RECVORIGDSTADDR    IPV6_ORIGDSTADDR
 366 #define IPV6_TRANSPARENT        75
 367 #define IPV6_UNICAST_IF         76
 368 #define IPV6_RECVFRAGSIZE       77
 369 #define IPV6_FREEBIND           78
 370
 371 #define IPV6_ADD_MEMBERSHIP     IPV6_JOIN_GROUP
 372 #define IPV6_DROP_MEMBERSHIP    IPV6_LEAVE_GROUP
 373 #define IPV6_RXHOPOPTS          IPV6_HOPOPTS
 374 #define IPV6_RXDSTOPTS          IPV6_DSTOPTS
 375
 376 #define IPV6_PMTUDISC_DONT      0
 377 #define IPV6_PMTUDISC_WANT      1
 378 #define IPV6_PMTUDISC_DO        2
 379 #define IPV6_PMTUDISC_PROBE     3
 380 #define IPV6_PMTUDISC_INTERFACE 4
 381 #define IPV6_PMTUDISC_OMIT      5
 382
 383 #define IPV6_PREFER_SRC_TMP            0x0001
 384 #define IPV6_PREFER_SRC_PUBLIC         0x0002
 385 #define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
 386 #define IPV6_PREFER_SRC_COA            0x0004
 387 #define IPV6_PREFER_SRC_HOME           0x0400
 388 #define IPV6_PREFER_SRC_CGA            0x0008
 389 #define IPV6_PREFER_SRC_NONCGA         0x0800
 390
 391 #define IPV6_RTHDR_LOOSE        0
 392 #define IPV6_RTHDR_STRICT       1
 393
 394 #define IPV6_RTHDR_TYPE_0       0
 395
 396 #define __UAPI_DEF_IN_ADDR      0
 397 #define __UAPI_DEF_IN_IPPROTO   0
 398 #define __UAPI_DEF_IN_PKTINFO   0
 399 #define __UAPI_DEF_IP_MREQ      0
 400 #define __UAPI_DEF_SOCKADDR_IN  0
 401 #define __UAPI_DEF_IN_CLASS     0
 402 #define __UAPI_DEF_IN6_ADDR     0
 403 #define __UAPI_DEF_IN6_ADDR_ALT 0
 404 #define __UAPI_DEF_SOCKADDR_IN6 0
 405 #define __UAPI_DEF_IPV6_MREQ    0
 406 #define __UAPI_DEF_IPPROTO_V6   0
 407 #define __UAPI_DEF_IPV6_OPTIONS 0
 408 #define __UAPI_DEF_IN6_PKTINFO  0
 409 #define __UAPI_DEF_IP6_MTUINFO  0
 410
 411 #ifdef __cplusplus
 412 }
 413 #endif
 414
 415 #endif