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