bsd/netinet/in_pcb.h

   1 /*
   2  * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * Copyright (c) 1982, 1986, 1990, 1993
  30  *      The Regents of the University of California.  All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  * 1. Redistributions of source code must retain the above copyright
  36  *    notice, this list of conditions and the following disclaimer.
  37  * 2. Redistributions in binary form must reproduce the above copyright
  38  *    notice, this list of conditions and the following disclaimer in the
  39  *    documentation and/or other materials provided with the distribution.
  40  * 3. All advertising materials mentioning features or use of this software
  41  *    must display the following acknowledgement:
  42  *      This product includes software developed by the University of
  43  *      California, Berkeley and its contributors.
  44  * 4. Neither the name of the University nor the names of its contributors
  45  *    may be used to endorse or promote products derived from this software
  46  *    without specific prior written permission.
  47  *
  48  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  51  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  52  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  58  * SUCH DAMAGE.
  59  *
  60  *      @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
  61  * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $
  62  */
  63 /*
  64  * NOTICE: This file was modified by SPARTA, Inc. in 2007 to introduce
  65  * support for mandatory and extensible security protections.  This notice
  66  * is included in support of clause 2.2 (b) of the Apple Public License,
  67  * Version 2.0.
  68  */
  69
  70 #ifndef _NETINET_IN_PCB_H_
  71 #define _NETINET_IN_PCB_H_
  72 #include <sys/appleapiopts.h>
  73
  74 #include <sys/types.h>
  75 #include <sys/queue.h>
  76 #ifdef KERNEL_PRIVATE
  77 #ifdef KERNEL
  78 #include <kern/locks.h>
  79 #endif
  80 #endif /* KERNEL_PRIVATE */
  81
  82 #include <netinet6/ipsec.h> /* for IPSEC */
  83
  84 #ifdef KERNEL_PRIVATE
  85
  86 #define in6pcb          inpcb   /* for KAME src sync over BSD*'s */
  87 #define in6p_sp         inp_sp  /* for KAME src sync over BSD*'s */
  88
  89 /*
  90  * Common structure pcb for internet protocol implementation.
  91  * Here are stored pointers to local and foreign host table
  92  * entries, local and foreign socket numbers, and pointers
  93  * up (to a socket structure) and down (to a protocol-specific)
  94  * control block.
  95  */
  96 LIST_HEAD(inpcbhead, inpcb);
  97 LIST_HEAD(inpcbporthead, inpcbport);
  98 #endif /* KERNEL_PRIVATE */
  99 typedef u_quad_t        inp_gen_t;
 100
 101 /*
 102  * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
 103  * So, AF_INET6 null laddr is also used as AF_INET null laddr, by utilizing
 104  * the following structure.
 105  */
 106 struct in_addr_4in6 {
 107         u_int32_t       ia46_pad32[3];
 108         struct  in_addr ia46_addr4;
 109 };
 110
 111 #ifdef KERNEL_PRIVATE
 112 /*
 113  * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
 114  * of the structure.  Therefore, it is important that the members in
 115  * that position not contain any information which is required to be
 116  * stable.
 117  */
 118 struct  icmp6_filter;
 119 #if CONFIG_MACF_NET
 120 struct  label;
 121 #endif
 122
 123 struct inp_stat
 124 {
 125         u_int64_t       rxpackets;
 126         u_int64_t       rxbytes;
 127         u_int64_t       txpackets;
 128         u_int64_t       txbytes;
 129 };
 130
 131 struct inpcb {
 132         LIST_ENTRY(inpcb) inp_hash;     /* hash list */
 133         int             inp_wantcnt;            /* pcb wanted count. protected by pcb list lock */
 134         int             inp_state;              /* state of this pcb, in use, recycled, ready for recycling... */
 135         u_short inp_fport;              /* foreign port */
 136         u_short inp_lport;              /* local port */
 137         LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */
 138         void    *inp_ppcb;              /* pointer to per-protocol pcb */
 139         struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
 140         struct  socket *inp_socket;     /* back pointer to socket */
 141         u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
 142         u_int32_t nat_cookie;           /* Cookie stored and returned to NAT */
 143         LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */
 144         struct  inpcbport *inp_phd;     /* head of this list */
 145         inp_gen_t inp_gencnt;           /* generation count of this instance */
 146         int     inp_flags;              /* generic IP/datagram flags */
 147         u_int32_t inp_flow;
 148
 149         u_char  inp_vflag;      /* INP_IPV4 or INP_IPV6 */
 150
 151         u_char inp_ip_ttl;              /* time to live proto */
 152         u_char inp_ip_p;                /* protocol proto */
 153         /* protocol dependent part */
 154         union {
 155                 /* foreign host table entry */
 156                 struct  in_addr_4in6 inp46_foreign;
 157                 struct  in6_addr inp6_foreign;
 158         } inp_dependfaddr;
 159         union {
 160                 /* local host table entry */
 161                 struct  in_addr_4in6 inp46_local;
 162                 struct  in6_addr inp6_local;
 163         } inp_dependladdr;
 164         union {
 165                 /* placeholder for routing entry */
 166                 struct  route inp4_route;
 167                 struct  route_in6 inp6_route;
 168         } inp_dependroute;
 169         struct {
 170                 /* type of service proto */
 171                 u_char inp4_ip_tos;
 172                 /* IP options */
 173                 struct mbuf *inp4_options;
 174                 /* IP multicast options */
 175                 struct ip_moptions *inp4_moptions;
 176         } inp_depend4;
 177         struct {
 178                 /* IP options */
 179                 struct mbuf *inp6_options;
 180                 u_int8_t        inp6_hlim;
 181                 u_int8_t        unused_uint8_1;
 182                 ushort  unused_uint16_1;
 183                 /* IP6 options for outgoing packets */
 184                 struct  ip6_pktopts *inp6_outputopts;
 185                 /* IP multicast options */
 186                 struct  ip6_moptions *inp6_moptions;
 187                 /* ICMPv6 code type filter */
 188                 struct  icmp6_filter *inp6_icmp6filt;
 189                 /* IPV6_CHECKSUM setsockopt */
 190                 int     inp6_cksum;
 191                 u_short inp6_ifindex;
 192                 short   inp6_hops;
 193         } inp_depend6;
 194
 195         int     hash_element;           /* Array index of pcb's hash list    */
 196         caddr_t inp_saved_ppcb;         /* place to save pointer while cached */
 197         struct inpcbpolicy *inp_sp;
 198         decl_lck_mtx_data( ,inpcb_mtx); /* inpcb per-socket mutex */
 199         unsigned int inp_boundif;       /* interface scope for INP_BOUND_IF */
 200         unsigned int inp_last_outif;    /* last known outgoing interface */
 201         u_int32_t inp_reserved[2];      /* reserved for future use */
 202 #if CONFIG_MACF_NET
 203         struct label *inp_label;        /* MAC label */
 204 #endif
 205         struct inp_stat *inp_stat;
 206         u_int8_t                inp_stat_store[sizeof(struct inp_stat) + sizeof(u_int64_t)];
 207 };
 208
 209 #endif /* KERNEL_PRIVATE */
 210
 211 /*
 212  * The range of the generation count, as used in this implementation,
 213  * is 9e19.  We would have to create 300 billion connections per
 214  * second for this number to roll over in a year.  This seems sufficiently
 215  * unlikely that we simply don't concern ourselves with that possibility.
 216  */
 217
 218 /*
 219  * Interface exported to userland by various protocols which use
 220  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
 221  */
 222
 223 /*
 224  * This is a copy of the inpcb as it shipped in Panther. This structure
 225  * is filled out in a copy function. This allows the inpcb to change
 226  * without breaking userland tools.
 227  *
 228  * CAUTION: Many fields may not be filled out. Fewer may be filled out
 229  * in the future. Code defensively.
 230  */
 231
 232 #pragma pack(4)
 233
 234 #if defined(__LP64__)
 235 struct _inpcb_list_entry {
 236     u_int32_t   le_next;
 237     u_int32_t   le_prev;
 238 };
 239 #define _INPCB_PTR(x)           u_int32_t
 240 #define _INPCB_LIST_ENTRY(x)    struct _inpcb_list_entry
 241 #else
 242 #define _INPCB_PTR(x)           x
 243 #define _INPCB_LIST_ENTRY(x)    LIST_ENTRY(x)
 244 #endif
 245
 246 #ifdef KERNEL_PRIVATE
 247 struct inpcb_compat {
 248 #else
 249 struct inpcbinfo;
 250 struct inpcbport;
 251 struct mbuf;
 252 struct ip6_pktopts;
 253 struct ip6_moptions;
 254 struct icmp6_filter;
 255 struct inpcbpolicy;
 256
 257 struct inpcb {
 258 #endif /* KERNEL_PRIVATE */
 259         _INPCB_LIST_ENTRY(inpcb) inp_hash;      /* hash list */
 260         struct  in_addr reserved1;      /* APPLE reserved: inp_faddr defined in protcol indep. part */
 261         struct  in_addr reserved2; /* APPLE reserved */
 262         u_short inp_fport;              /* foreign port */
 263         u_short inp_lport;              /* local port */
 264         _INPCB_LIST_ENTRY(inpcb) inp_list;      /* list for all PCBs of this proto */
 265         _INPCB_PTR(caddr_t)     inp_ppcb;       /* pointer to per-protocol pcb */
 266         _INPCB_PTR(struct inpcbinfo *)  inp_pcbinfo;    /* PCB list info */
 267         _INPCB_PTR(void *)      inp_socket;     /* back pointer to socket */
 268         u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
 269         u_int32_t nat_cookie;           /* Cookie stored and returned to NAT */
 270         _INPCB_LIST_ENTRY(inpcb) inp_portlist;  /* list for this PCB's local port */
 271         _INPCB_PTR(struct inpcbport *)  inp_phd;                /* head of this list */
 272         inp_gen_t inp_gencnt;           /* generation count of this instance */
 273         int     inp_flags;              /* generic IP/datagram flags */
 274         u_int32_t inp_flow;
 275
 276         u_char  inp_vflag;
 277
 278         u_char inp_ip_ttl;              /* time to live proto */
 279         u_char inp_ip_p;                /* protocol proto */
 280         /* protocol dependent part */
 281         union {
 282                 /* foreign host table entry */
 283                 struct  in_addr_4in6 inp46_foreign;
 284                 struct  in6_addr inp6_foreign;
 285         } inp_dependfaddr;
 286         union {
 287                 /* local host table entry */
 288                 struct  in_addr_4in6 inp46_local;
 289                 struct  in6_addr inp6_local;
 290         } inp_dependladdr;
 291         union {
 292                 /* placeholder for routing entry */
 293                 u_char  inp4_route[20];
 294                 u_char  inp6_route[32];
 295         } inp_dependroute;
 296         struct {
 297                 /* type of service proto */
 298                 u_char inp4_ip_tos;
 299                 /* IP options */
 300                 _INPCB_PTR(struct mbuf *) inp4_options;
 301                 /* IP multicast options */
 302                 _INPCB_PTR(struct ip_moptions *) inp4_moptions;
 303         } inp_depend4;
 304
 305         struct {
 306                 /* IP options */
 307                 _INPCB_PTR(struct mbuf *)       inp6_options;
 308                 u_int8_t        inp6_hlim;
 309                 u_int8_t        unused_uint8_1;
 310                 ushort  unused_uint16_1;
 311                 /* IP6 options for outgoing packets */
 312                 _INPCB_PTR(struct ip6_pktopts *)        inp6_outputopts;
 313                 /* IP multicast options */
 314                 _INPCB_PTR(struct ip6_moptions *)       inp6_moptions;
 315                 /* ICMPv6 code type filter */
 316                 _INPCB_PTR(struct icmp6_filter *)       inp6_icmp6filt;
 317                 /* IPV6_CHECKSUM setsockopt */
 318                 int     inp6_cksum;
 319                 u_short inp6_ifindex;
 320                 short   inp6_hops;
 321         } inp_depend6;
 322
 323         int     hash_element;           /* Array index of pcb's hash list    */
 324         _INPCB_PTR(caddr_t)     inp_saved_ppcb; /* place to save pointer while cached */
 325         _INPCB_PTR(struct inpcbpolicy *)        inp_sp;
 326         u_int32_t       reserved[3];    /* For future use */
 327 };
 328
 329 struct  xinpcb {
 330         u_int32_t       xi_len;         /* length of this structure */
 331 #ifdef KERNEL_PRIVATE
 332         struct  inpcb_compat xi_inp;
 333 #else
 334         struct  inpcb xi_inp;
 335 #endif
 336         struct  xsocket xi_socket;
 337         u_quad_t        xi_alignment_hack;
 338 };
 339
 340 #if !CONFIG_EMBEDDED
 341
 342 struct inpcb64_list_entry {
 343     u_int64_t   le_next;
 344     u_int64_t   le_prev;
 345 };
 346
 347 struct  xinpcb64 {
 348         u_int64_t               xi_len;         /* length of this structure */
 349         u_int64_t               xi_inpp;
 350         u_short                 inp_fport;      /* foreign port */
 351         u_short                 inp_lport;      /* local port */
 352         struct inpcb64_list_entry
 353                                 inp_list;       /* list for all PCBs of this proto */
 354         u_int64_t               inp_ppcb;       /* pointer to per-protocol pcb */
 355         u_int64_t               inp_pcbinfo;    /* PCB list info */
 356         struct inpcb64_list_entry
 357                                 inp_portlist;   /* list for this PCB's local port */
 358         u_int64_t               inp_phd;        /* head of this list */
 359         inp_gen_t               inp_gencnt;     /* generation count of this instance */
 360         int                     inp_flags;      /* generic IP/datagram flags */
 361         u_int32_t               inp_flow;
 362         u_char                  inp_vflag;
 363         u_char                  inp_ip_ttl;     /* time to live */
 364         u_char                  inp_ip_p;       /* protocol */
 365         union {                                 /* foreign host table entry */
 366                         struct  in_addr_4in6    inp46_foreign;
 367                         struct  in6_addr        inp6_foreign;
 368         }                       inp_dependfaddr;
 369         union {                                 /* local host table entry */
 370                         struct  in_addr_4in6    inp46_local;
 371                         struct  in6_addr        inp6_local;
 372         }                       inp_dependladdr;
 373         struct {
 374                         u_char          inp4_ip_tos;    /* type of service */
 375         }                       inp_depend4;
 376         struct {
 377                         u_int8_t        inp6_hlim;
 378         int             inp6_cksum;
 379                         u_short         inp6_ifindex;
 380                         short           inp6_hops;
 381         }                       inp_depend6;
 382         struct  xsocket64       xi_socket;
 383         u_quad_t                xi_alignment_hack;
 384 };
 385
 386 #endif /* !CONFIG_EMBEDDED */
 387
 388 #ifdef PRIVATE
 389
 390 struct xinpcb_list_entry {
 391     u_int64_t   le_next;
 392     u_int64_t   le_prev;
 393 };
 394
 395 struct  xinpcb_n {
 396         u_int32_t               xi_len;         /* length of this structure */
 397         u_int32_t               xi_kind;                /* XSO_INPCB */
 398         u_int64_t               xi_inpp;
 399         u_short                 inp_fport;      /* foreign port */
 400         u_short                 inp_lport;      /* local port */
 401         u_int64_t               inp_ppcb;       /* pointer to per-protocol pcb */
 402         inp_gen_t               inp_gencnt;     /* generation count of this instance */
 403         int                             inp_flags;      /* generic IP/datagram flags */
 404         u_int32_t               inp_flow;
 405         u_char                  inp_vflag;
 406         u_char                  inp_ip_ttl;     /* time to live */
 407         u_char                  inp_ip_p;       /* protocol */
 408         union {                                 /* foreign host table entry */
 409                 struct  in_addr_4in6    inp46_foreign;
 410                 struct  in6_addr        inp6_foreign;
 411         }                               inp_dependfaddr;
 412         union {                                 /* local host table entry */
 413                 struct  in_addr_4in6    inp46_local;
 414                 struct  in6_addr        inp6_local;
 415         }                               inp_dependladdr;
 416         struct {
 417                 u_char          inp4_ip_tos;    /* type of service */
 418         }                               inp_depend4;
 419         struct {
 420                 u_int8_t        inp6_hlim;
 421                 int                     inp6_cksum;
 422                 u_short         inp6_ifindex;
 423                 short           inp6_hops;
 424         }                               inp_depend6;
 425 };
 426
 427 #endif /* PRIVATE */
 428
 429 struct  xinpgen {
 430         u_int32_t xig_len;      /* length of this structure */
 431         u_int   xig_count;      /* number of PCBs at this time */
 432         inp_gen_t xig_gen;      /* generation count at this time */
 433         so_gen_t xig_sogen;     /* socket generation count at this time */
 434 };
 435
 436 #pragma pack()
 437
 438 /*
 439  * These defines are for use with the inpcb.
 440  */
 441 #define INP_IPV4        0x1
 442 #define INP_IPV6        0x2
 443 #define inp_faddr       inp_dependfaddr.inp46_foreign.ia46_addr4
 444 #define inp_laddr       inp_dependladdr.inp46_local.ia46_addr4
 445 #define inp_route       inp_dependroute.inp4_route
 446 #define inp_ip_tos      inp_depend4.inp4_ip_tos
 447 #define inp_options     inp_depend4.inp4_options
 448 #define inp_moptions    inp_depend4.inp4_moptions
 449 #define in6p_faddr      inp_dependfaddr.inp6_foreign
 450 #define in6p_laddr      inp_dependladdr.inp6_local
 451 #define in6p_route      inp_dependroute.inp6_route
 452 #define in6p_ip6_hlim   inp_depend6.inp6_hlim
 453 #define in6p_hops       inp_depend6.inp6_hops   /* default hop limit */
 454 #define in6p_ip6_nxt    inp_ip_p
 455 #define in6p_flowinfo   inp_flow
 456 #define in6p_vflag      inp_vflag
 457 #define in6p_options    inp_depend6.inp6_options
 458 #define in6p_outputopts inp_depend6.inp6_outputopts
 459 #define in6p_moptions   inp_depend6.inp6_moptions
 460 #define in6p_icmp6filt  inp_depend6.inp6_icmp6filt
 461 #define in6p_cksum      inp_depend6.inp6_cksum
 462 #define in6p_ifindex    inp_depend6.inp6_ifindex
 463 #define in6p_flags      inp_flags  /* for KAME src sync over BSD*'s */
 464 #define in6p_socket     inp_socket  /* for KAME src sync over BSD*'s */
 465 #define in6p_lport      inp_lport  /* for KAME src sync over BSD*'s */
 466 #define in6p_fport      inp_fport  /* for KAME src sync over BSD*'s */
 467 #define in6p_ppcb       inp_ppcb  /* for KAME src sync over BSD*'s */
 468 #define in6p_state      inp_state
 469 #define in6p_wantcnt    inp_wantcnt
 470 #define in6p_last_outif inp_last_outif
 471
 472 #ifdef KERNEL_PRIVATE
 473 struct inpcbport {
 474         LIST_ENTRY(inpcbport) phd_hash;
 475         struct inpcbhead phd_pcblist;
 476         u_short phd_port;
 477 };
 478
 479 struct inpcbinfo {              /* XXX documentation, prefixes */
 480         struct  inpcbhead *hashbase;
 481 #ifdef __APPLE__
 482         u_int32_t       hashsize; /* in elements */
 483 #endif
 484         u_long  hashmask;       /* needs to be u_long as expected by hash functions */
 485         struct  inpcbporthead *porthashbase;
 486         u_long  porthashmask;   /* needs to be u_long as expected by hash functions */
 487         struct  inpcbhead *listhead;
 488         u_short lastport;
 489         u_short lastlow;
 490         u_short lasthi;
 491         void   *ipi_zone; /* zone to allocate pcbs from */
 492         u_int   ipi_count;      /* number of pcbs in this list */
 493         u_quad_t ipi_gencnt;    /* current generation count */
 494 #ifdef __APPLE__
 495 #ifdef _KERN_LOCKS_H_
 496         lck_attr_t      *mtx_attr;      /* mutex attributes */
 497         lck_grp_t       *mtx_grp;       /* mutex group definition */
 498         lck_grp_attr_t  *mtx_grp_attr;  /* mutex group attributes */
 499         lck_rw_t        *mtx;           /* global mutex for the pcblist*/
 500 #else
 501         void    *mtx_attr;      /* mutex attributes */
 502         void    *mtx_grp;       /* mutex group definition */
 503         void    *mtx_grp_attr;  /* mutex group attributes */
 504         void    *mtx;           /* global mutex for the pcblist*/
 505 #endif
 506 #endif
 507 };
 508
 509 #define INP_PCBHASH(faddr, lport, fport, mask) \
 510         (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
 511 #define INP_PCBPORTHASH(lport, mask) \
 512         (ntohs((lport)) & (mask))
 513
 514 #endif /* KERNEL_PRIVATE */
 515
 516 /* flags in inp_flags: */
 517 #define INP_RECVOPTS            0x01    /* receive incoming IP options */
 518 #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
 519 #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
 520 #define INP_HDRINCL             0x08    /* user supplies entire IP header */
 521 #define INP_HIGHPORT            0x10    /* user wants "high" port binding */
 522 #define INP_LOWPORT             0x20    /* user wants "low" port binding */
 523 #define INP_ANONPORT            0x40    /* port chosen for user */
 524 #define INP_RECVIF              0x80    /* receive incoming interface */
 525 #define INP_MTUDISC             0x100   /* user can do MTU discovery */
 526 #ifdef __APPLE__
 527 #define INP_STRIPHDR            0x200   /* Strip headers in raw_ip, for OT support */
 528 #endif
 529 #define  INP_FAITH              0x400   /* accept FAITH'ed connections */
 530 #define  INP_INADDR_ANY         0x800   /* local address wasn't specified */
 531
 532 #define INP_RECVTTL             0x1000
 533 #define INP_UDP_NOCKSUM         0x2000  /* Turn off outbound UDP checksum */
 534 #define INP_BOUND_IF            0x4000  /* bind socket to an ifindex */
 535
 536 #define IN6P_IPV6_V6ONLY        0x8000 /* restrict AF_INET6 socket for v6 */
 537 #define IN6P_PKTINFO            0x10000 /* receive IP6 dst and I/F */
 538 #define IN6P_HOPLIMIT           0x20000 /* receive hoplimit */
 539 #define IN6P_HOPOPTS            0x40000 /* receive hop-by-hop options */
 540 #define IN6P_DSTOPTS            0x80000 /* receive dst options after rthdr */
 541 #define IN6P_RTHDR              0x100000 /* receive routing header */
 542 #define IN6P_RTHDRDSTOPTS       0x200000 /* receive dstoptions before rthdr */
 543 #define IN6P_TCLASS             0x400000 /* receive traffic class value */
 544 #define IN6P_AUTOFLOWLABEL      0x800000 /* attach flowlabel automatically */
 545 #define IN6P_BINDV6ONLY         0x1000000 /* do not grab IPv4 traffic */
 546 #define IN6P_RFC2292            0x2000000 /* used RFC2292 API on the socket */
 547 #define IN6P_MTU                0x4000000 /* receive path MTU */
 548 #define INP_PKTINFO             0x8000000 /* receive and send PKTINFO for IPv4 */
 549
 550 #define INP_NO_IFT_CELLULAR     0x20000000 /* do not use IFT_CELLULAR route */
 551
 552 #ifdef KERNEL_PRIVATE
 553 #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
 554                                  INP_RECVIF|INP_RECVTTL|INP_PKTINFO|\
 555                                  IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
 556                                  IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
 557                                  IN6P_TCLASS|IN6P_RFC2292|IN6P_MTU)
 558
 559 #define INP_UNMAPPABLEOPTS      (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
 560                                  IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
 561
 562  /* for KAME src sync over BSD*'s */
 563 #define IN6P_HIGHPORT           INP_HIGHPORT
 564 #define IN6P_LOWPORT            INP_LOWPORT
 565 #define IN6P_ANONPORT           INP_ANONPORT
 566 #define IN6P_RECVIF             INP_RECVIF
 567 #define IN6P_MTUDISC            INP_MTUDISC
 568 #define IN6P_FAITH              INP_FAITH
 569 #define IN6P_CONTROLOPTS INP_CONTROLOPTS
 570 #define IN6P_NO_IFT_CELLULAR    INP_NO_IFT_CELLULAR
 571         /*
 572          * socket AF version is {newer than,or include}
 573          * actual datagram AF version
 574          */
 575
 576 #define INPLOOKUP_WILDCARD      1
 577 #ifdef __APPLE__
 578 #define INPCB_ALL_OWNERS        0xff
 579 #define INPCB_NO_OWNER          0x0
 580 #define INPCB_OWNED_BY_X        0x80
 581 #define INPCB_MAX_IDS           7
 582 #endif /* __APPLE__ */
 583
 584 #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
 585 #define sotoin6pcb(so)  sotoinpcb(so) /* for KAME src sync over BSD*'s */
 586
 587 #define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
 588 #define INP_SOCKTYPE(so) so->so_proto->pr_type
 589
 590 #define INP_CHECK_SOCKAF(so, af)        (INP_SOCKAF(so) == af)
 591
 592 #ifdef KERNEL
 593 extern int      ipport_lowfirstauto;
 594 extern int      ipport_lowlastauto;
 595 extern int      ipport_firstauto;
 596 extern int      ipport_lastauto;
 597 extern int      ipport_hifirstauto;
 598 extern int      ipport_hilastauto;
 599
 600 struct sysctl_req;
 601
 602 #define INPCB_STATE_INUSE       0x1     /* freshly allocated PCB, it's in use */
 603 #define INPCB_STATE_CACHED      0x2     /* this pcb is sitting in a a cache */
 604 #define INPCB_STATE_DEAD        0x3     /* should treat as gone, will be garbage collected and freed */
 605
 606 #define WNT_STOPUSING   0xffff  /* marked as ready to be garbaged collected, should be treated as not found */
 607 #define WNT_ACQUIRE     0x1             /* that pcb is being acquired, do not recycle this time */
 608 #define WNT_RELEASE     0x2             /* release acquired mode, can be garbage collected when wantcnt is null */
 609
 610 extern void     in_losing(struct inpcb *);
 611 extern void     in_rtchange(struct inpcb *, int);
 612 extern int      in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *);
 613 extern int      in_pcbbind(struct inpcb *, struct sockaddr *, struct proc *);
 614 extern int      in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *, unsigned int *);
 615 extern void     in_pcbdetach(struct inpcb *);
 616 extern void     in_pcbdispose (struct inpcb *);
 617 extern void     in_pcbdisconnect(struct inpcb *);
 618 extern int      in_pcbinshash(struct inpcb *, int);
 619 extern int      in_pcbladdr(struct inpcb *, struct sockaddr *,
 620                     struct sockaddr_in *, unsigned int *);
 621 extern struct inpcb *in_pcblookup_local(struct inpcbinfo *, struct in_addr,
 622                     u_int, int);
 623 extern struct inpcb *in_pcblookup_local_and_cleanup(struct inpcbinfo *,
 624                     struct in_addr, u_int, int);
 625 extern struct inpcb *in_pcblookup_hash(struct inpcbinfo *, struct in_addr,
 626                     u_int, struct in_addr, u_int, int, struct ifnet *);
 627 extern int      in_pcblookup_hash_exists(struct inpcbinfo *, struct in_addr,
 628                     u_int, struct in_addr, u_int, int, uid_t *, gid_t *, struct ifnet *);
 629 extern void     in_pcbnotifyall(struct inpcbinfo *, struct in_addr, int,
 630                     void (*)(struct inpcb *, int));
 631 extern void     in_pcbrehash(struct inpcb *);
 632 extern int      in_setpeeraddr(struct socket *so, struct sockaddr **nam);
 633 extern int      in_setsockaddr(struct socket *so, struct sockaddr **nam);
 634 extern int      in_pcb_checkstate(struct inpcb *pcb, int mode, int locked);
 635
 636 extern void     in_pcbremlists(struct inpcb *inp);
 637 extern void     inpcb_to_compat(struct inpcb *inp,
 638                     struct inpcb_compat *inp_compat);
 639 #if !CONFIG_EMBEDDED
 640 extern void     inpcb_to_xinpcb64(struct inpcb *inp,
 641                         struct xinpcb64 *xinp);
 642 #endif
 643 extern int get_pcblist_n(short , struct sysctl_req *, struct inpcbinfo *);
 644 extern void     inp_route_copyout(struct inpcb *, struct route *);
 645 extern void     inp_route_copyin(struct inpcb *, struct route *);
 646 extern void     inp_bindif(struct inpcb *, unsigned int);
 647 extern int      inp_nocellular(struct inpcb *, unsigned int);
 648
 649 #endif /* KERNEL */
 650 #endif /* KERNEL_PRIVATE */
 651
 652 #endif /* !_NETINET_IN_PCB_H_ */