bsd/netinet/in_pcb.h

   1 /*
   2  * Copyright (c) 2000-2007 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,
 104  * by utilize following structure. (At last, same as INRIA)
 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 inpcb {
 124         LIST_ENTRY(inpcb) inp_hash;     /* hash list */
 125         int             inp_wantcnt;            /* pcb wanted count. protected by pcb list lock */
 126         int             inp_state;              /* state of this pcb, in use, recycled, ready for recycling... */
 127         u_short inp_fport;              /* foreign port */
 128         u_short inp_lport;              /* local port */
 129         LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */
 130         caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
 131         struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
 132         struct  socket *inp_socket;     /* back pointer to socket */
 133         u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
 134         u_int32_t nat_cookie;           /* Cookie stored and returned to NAT */
 135         LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */
 136         struct  inpcbport *inp_phd;     /* head of this list */
 137         inp_gen_t inp_gencnt;           /* generation count of this instance */
 138         int     inp_flags;              /* generic IP/datagram flags */
 139         u_int32_t inp_flow;
 140
 141         u_char  inp_vflag;      /* INP_IPV4 or INP_IPV6 */
 142
 143         u_char inp_ip_ttl;              /* time to live proto */
 144         u_char inp_ip_p;                /* protocol proto */
 145         /* protocol dependent part */
 146         union {
 147                 /* foreign host table entry */
 148                 struct  in_addr_4in6 inp46_foreign;
 149                 struct  in6_addr inp6_foreign;
 150         } inp_dependfaddr;
 151         union {
 152                 /* local host table entry */
 153                 struct  in_addr_4in6 inp46_local;
 154                 struct  in6_addr inp6_local;
 155         } inp_dependladdr;
 156         union {
 157                 /* placeholder for routing entry */
 158                 struct  route inp4_route;
 159                 struct  route_in6 inp6_route;
 160         } inp_dependroute;
 161         struct {
 162                 /* type of service proto */
 163                 u_char inp4_ip_tos;
 164                 /* IP options */
 165                 struct mbuf *inp4_options;
 166                 /* IP multicast options */
 167                 struct ip_moptions *inp4_moptions;
 168         } inp_depend4;
 169         struct {
 170                 /* IP options */
 171                 struct mbuf *inp6_options;
 172                 u_int8_t        inp6_hlim;
 173                 u_int8_t        unused_uint8_1;
 174                 ushort  unused_uint16_1;
 175                 /* IP6 options for outgoing packets */
 176                 struct  ip6_pktopts *inp6_outputopts;
 177                 /* IP multicast options */
 178                 struct  ip6_moptions *inp6_moptions;
 179                 /* ICMPv6 code type filter */
 180                 struct  icmp6_filter *inp6_icmp6filt;
 181                 /* IPV6_CHECKSUM setsockopt */
 182                 int     inp6_cksum;
 183                 u_short inp6_ifindex;
 184                 short   inp6_hops;
 185         } inp_depend6;
 186
 187         int     hash_element;           /* Array index of pcb's hash list    */
 188         caddr_t inp_saved_ppcb;         /* place to save pointer while cached */
 189         struct inpcbpolicy *inp_sp;
 190 #ifdef _KERN_LOCKS_H_
 191         lck_mtx_t *inpcb_mtx;   /* inpcb per-socket mutex */
 192 #else
 193         void      *inpcb_mtx;
 194 #endif
 195         u_int32_t reserved[4];          /* future use (some already used) */
 196 #if CONFIG_MACF_NET
 197         struct label *inp_label;        /* MAC label */
 198 #endif
 199 #if CONFIG_FORCE_OUT_IFP
 200 #ifdef _KERN_SYS_KERNELTYPES_H_
 201         ifnet_t pdp_ifp;
 202 #else
 203         void    *pdp_ifp;
 204 #endif /* _KERN_SYS_KERNELTYPES_H_ */
 205 #endif /* CONFIG_EMBEDDED */
 206 #if CONFIG_IP_EDGEHOLE
 207         u_int32_t       inpcb_edgehole_flags;
 208         u_int32_t       inpcb_edgehole_mask;
 209 #endif
 210 };
 211
 212 #endif /* KERNEL_PRIVATE */
 213
 214 /*
 215  * The range of the generation count, as used in this implementation,
 216  * is 9e19.  We would have to create 300 billion connections per
 217  * second for this number to roll over in a year.  This seems sufficiently
 218  * unlikely that we simply don't concern ourselves with that possibility.
 219  */
 220
 221 /*
 222  * Interface exported to userland by various protocols which use
 223  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
 224  */
 225
 226 /*
 227  * This is a copy of the inpcb as it shipped in Panther. This structure
 228  * is filled out in a copy function. This allows the inpcb to change
 229  * without breaking userland tools.
 230  *
 231  * CAUTION: Many fields may not be filled out. Fewer may be filled out
 232  * in the future. Code defensively.
 233  */
 234
 235 #pragma pack(4)
 236
 237 #if defined(__LP64__)
 238 struct _inpcb_list_entry {
 239     u_int32_t   le_next;
 240     u_int32_t   le_prev;
 241 };
 242 #define _INPCB_PTR(x)           u_int32_t
 243 #define _INPCB_LIST_ENTRY(x)    struct _inpcb_list_entry
 244 #else
 245 #define _INPCB_PTR(x)           x
 246 #define _INPCB_LIST_ENTRY(x)    LIST_ENTRY(x)
 247 #endif
 248
 249 #ifdef KERNEL_PRIVATE
 250 struct inpcb_compat {
 251 #else
 252 struct inpcbinfo;
 253 struct inpcbport;
 254 struct mbuf;
 255 struct ip6_pktopts;
 256 struct ip6_moptions;
 257 struct icmp6_filter;
 258 struct inpcbpolicy;
 259
 260 struct inpcb {
 261 #endif /* KERNEL_PRIVATE */
 262         _INPCB_LIST_ENTRY(inpcb) inp_hash;      /* hash list */
 263         struct  in_addr reserved1;      /* APPLE reserved: inp_faddr defined in protcol indep. part */
 264         struct  in_addr reserved2; /* APPLE reserved */
 265         u_short inp_fport;              /* foreign port */
 266         u_short inp_lport;              /* local port */
 267         _INPCB_LIST_ENTRY(inpcb) inp_list;      /* list for all PCBs of this proto */
 268         _INPCB_PTR(caddr_t)     inp_ppcb;       /* pointer to per-protocol pcb */
 269         _INPCB_PTR(struct inpcbinfo *)  inp_pcbinfo;    /* PCB list info */
 270         _INPCB_PTR(void *)      inp_socket;     /* back pointer to socket */
 271         u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
 272         u_int32_t nat_cookie;           /* Cookie stored and returned to NAT */
 273         _INPCB_LIST_ENTRY(inpcb) inp_portlist;  /* list for this PCB's local port */
 274         _INPCB_PTR(struct inpcbport *)  inp_phd;                /* head of this list */
 275         inp_gen_t inp_gencnt;           /* generation count of this instance */
 276         int     inp_flags;              /* generic IP/datagram flags */
 277         u_int32_t inp_flow;
 278
 279         u_char  inp_vflag;
 280
 281         u_char inp_ip_ttl;              /* time to live proto */
 282         u_char inp_ip_p;                /* protocol proto */
 283         /* protocol dependent part */
 284         union {
 285                 /* foreign host table entry */
 286                 struct  in_addr_4in6 inp46_foreign;
 287                 struct  in6_addr inp6_foreign;
 288         } inp_dependfaddr;
 289         union {
 290                 /* local host table entry */
 291                 struct  in_addr_4in6 inp46_local;
 292                 struct  in6_addr inp6_local;
 293         } inp_dependladdr;
 294         union {
 295                 /* placeholder for routing entry */
 296                 u_char  inp4_route[20];
 297                 u_char  inp6_route[32];
 298         } inp_dependroute;
 299         struct {
 300                 /* type of service proto */
 301                 u_char inp4_ip_tos;
 302                 /* IP options */
 303                 _INPCB_PTR(struct mbuf *) inp4_options;
 304                 /* IP multicast options */
 305                 _INPCB_PTR(struct ip_moptions *) inp4_moptions;
 306         } inp_depend4;
 307
 308         struct {
 309                 /* IP options */
 310                 _INPCB_PTR(struct mbuf *)       inp6_options;
 311                 u_int8_t        inp6_hlim;
 312                 u_int8_t        unused_uint8_1;
 313                 ushort  unused_uint16_1;
 314                 /* IP6 options for outgoing packets */
 315                 _INPCB_PTR(struct ip6_pktopts *)        inp6_outputopts;
 316                 /* IP multicast options */
 317                 _INPCB_PTR(struct ip6_moptions *)       inp6_moptions;
 318                 /* ICMPv6 code type filter */
 319                 _INPCB_PTR(struct icmp6_filter *)       inp6_icmp6filt;
 320                 /* IPV6_CHECKSUM setsockopt */
 321                 int     inp6_cksum;
 322                 u_short inp6_ifindex;
 323                 short   inp6_hops;
 324         } inp_depend6;
 325
 326         int     hash_element;           /* Array index of pcb's hash list    */
 327         _INPCB_PTR(caddr_t)     inp_saved_ppcb; /* place to save pointer while cached */
 328         _INPCB_PTR(struct inpcbpolicy *)        inp_sp;
 329         u_int32_t       reserved[3];    /* For future use */
 330 };
 331
 332 struct  xinpcb {
 333         u_int32_t       xi_len;         /* length of this structure */
 334 #ifdef KERNEL_PRIVATE
 335         struct  inpcb_compat xi_inp;
 336 #else
 337         struct  inpcb xi_inp;
 338 #endif
 339         struct  xsocket xi_socket;
 340         u_quad_t        xi_alignment_hack;
 341 };
 342
 343 struct  xinpgen {
 344         u_int32_t xig_len;      /* length of this structure */
 345         u_int   xig_count;      /* number of PCBs at this time */
 346         inp_gen_t xig_gen;      /* generation count at this time */
 347         so_gen_t xig_sogen;     /* socket generation count at this time */
 348 };
 349
 350 #pragma pack()
 351
 352 /*
 353  * These defines are for use with the inpcb.
 354  */
 355 #define INP_IPV4        0x1
 356 #define INP_IPV6        0x2
 357 #define inp_faddr       inp_dependfaddr.inp46_foreign.ia46_addr4
 358 #define inp_laddr       inp_dependladdr.inp46_local.ia46_addr4
 359 #define inp_route       inp_dependroute.inp4_route
 360 #define inp_ip_tos      inp_depend4.inp4_ip_tos
 361 #define inp_options     inp_depend4.inp4_options
 362 #define inp_moptions    inp_depend4.inp4_moptions
 363 #define in6p_faddr      inp_dependfaddr.inp6_foreign
 364 #define in6p_laddr      inp_dependladdr.inp6_local
 365 #define in6p_route      inp_dependroute.inp6_route
 366 #define in6p_ip6_hlim   inp_depend6.inp6_hlim
 367 #define in6p_hops       inp_depend6.inp6_hops   /* default hop limit */
 368 #define in6p_ip6_nxt    inp_ip_p
 369 #define in6p_flowinfo   inp_flow
 370 #define in6p_vflag      inp_vflag
 371 #define in6p_options    inp_depend6.inp6_options
 372 #define in6p_outputopts inp_depend6.inp6_outputopts
 373 #define in6p_moptions   inp_depend6.inp6_moptions
 374 #define in6p_icmp6filt  inp_depend6.inp6_icmp6filt
 375 #define in6p_cksum      inp_depend6.inp6_cksum
 376 #define inp6_ifindex    inp_depend6.inp6_ifindex
 377 #define in6p_flags      inp_flags  /* for KAME src sync over BSD*'s */
 378 #define in6p_socket     inp_socket  /* for KAME src sync over BSD*'s */
 379 #define in6p_lport      inp_lport  /* for KAME src sync over BSD*'s */
 380 #define in6p_fport      inp_fport  /* for KAME src sync over BSD*'s */
 381 #define in6p_ppcb       inp_ppcb  /* for KAME src sync over BSD*'s */
 382 #define in6p_state      inp_state
 383 #define in6p_wantcnt    inp_wantcnt
 384
 385 #ifdef KERNEL_PRIVATE
 386 struct inpcbport {
 387         LIST_ENTRY(inpcbport) phd_hash;
 388         struct inpcbhead phd_pcblist;
 389         u_short phd_port;
 390 };
 391
 392 struct inpcbinfo {              /* XXX documentation, prefixes */
 393         struct  inpcbhead *hashbase;
 394 #ifdef __APPLE__
 395         u_long  hashsize; /* in elements */
 396 #endif
 397         u_long  hashmask;
 398         struct  inpcbporthead *porthashbase;
 399         u_long  porthashmask;
 400         struct  inpcbhead *listhead;
 401         u_short lastport;
 402         u_short lastlow;
 403         u_short lasthi;
 404         void   *ipi_zone; /* zone to allocate pcbs from */
 405         u_int   ipi_count;      /* number of pcbs in this list */
 406         u_quad_t ipi_gencnt;    /* current generation count */
 407 #ifdef __APPLE__
 408         u_char   all_owners;
 409         struct  socket nat_dummy_socket; /* fake socket for NAT pcb backpointer */
 410         struct  inpcb *nat_dummy_pcb;    /* fake pcb for finding NAT mutex */
 411         caddr_t  dummy_cb;
 412 #ifdef _KERN_LOCKS_H_
 413         lck_attr_t              *mtx_attr;              /* mutex attributes */
 414         lck_grp_t                       *mtx_grp;                       /* mutex group definition */
 415         lck_grp_attr_t  *mtx_grp_attr;  /* mutex group attributes */
 416         lck_rw_t                        *mtx;                   /* global mutex for the pcblist*/
 417 #else
 418         void    *mtx_attr;      /* mutex attributes */
 419         void    *mtx_grp;       /* mutex group definition */
 420         void    *mtx_grp_attr;  /* mutex group attributes */
 421         void    *mtx;           /* global mutex for the pcblist*/
 422 #endif
 423 #endif
 424 };
 425
 426 #define INP_PCBHASH(faddr, lport, fport, mask) \
 427         (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
 428 #define INP_PCBPORTHASH(lport, mask) \
 429         (ntohs((lport)) & (mask))
 430
 431 #endif /* KERNEL_PRIVATE */
 432
 433 /* flags in inp_flags: */
 434 #define INP_RECVOPTS            0x01    /* receive incoming IP options */
 435 #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
 436 #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
 437 #define INP_HDRINCL             0x08    /* user supplies entire IP header */
 438 #define INP_HIGHPORT            0x10    /* user wants "high" port binding */
 439 #define INP_LOWPORT             0x20    /* user wants "low" port binding */
 440 #define INP_ANONPORT            0x40    /* port chosen for user */
 441 #define INP_RECVIF              0x80    /* receive incoming interface */
 442 #define INP_MTUDISC             0x100   /* user can do MTU discovery */
 443 #ifdef __APPLE__
 444 #define INP_STRIPHDR            0x200   /* Strip headers in raw_ip, for OT support */
 445 #endif
 446 #define  INP_FAITH                      0x400   /* accept FAITH'ed connections */
 447 #define  INP_INADDR_ANY         0x800   /* local address wasn't specified */
 448
 449 #define INP_RECVTTL             0x1000
 450 #define INP_UDP_NOCKSUM         0x2000  /* Turn off outbound UDP checksum */
 451
 452 #define IN6P_IPV6_V6ONLY        0x008000 /* restrict AF_INET6 socket for v6 */
 453
 454 #define IN6P_PKTINFO            0x010000 /* receive IP6 dst and I/F */
 455 #define IN6P_HOPLIMIT           0x020000 /* receive hoplimit */
 456 #define IN6P_HOPOPTS            0x040000 /* receive hop-by-hop options */
 457 #define IN6P_DSTOPTS            0x080000 /* receive dst options after rthdr */
 458 #define IN6P_RTHDR              0x100000 /* receive routing header */
 459 #define IN6P_RTHDRDSTOPTS       0x200000 /* receive dstoptions before rthdr */
 460 #define IN6P_AUTOFLOWLABEL      0x800000 /* attach flowlabel automatically */
 461 #define IN6P_BINDV6ONLY         0x10000000 /* do not grab IPv4 traffic */
 462
 463 #ifdef KERNEL_PRIVATE
 464 #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
 465                                         INP_RECVIF|\
 466                                  IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
 467                                  IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
 468                                  IN6P_AUTOFLOWLABEL|INP_RECVTTL)
 469 #define INP_UNMAPPABLEOPTS      (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
 470                                  IN6P_AUTOFLOWLABEL)
 471
 472  /* for KAME src sync over BSD*'s */
 473 #define IN6P_HIGHPORT           INP_HIGHPORT
 474 #define IN6P_LOWPORT            INP_LOWPORT
 475 #define IN6P_ANONPORT           INP_ANONPORT
 476 #define IN6P_RECVIF             INP_RECVIF
 477 #define IN6P_MTUDISC            INP_MTUDISC
 478 #define IN6P_FAITH              INP_FAITH
 479 #define IN6P_CONTROLOPTS INP_CONTROLOPTS
 480         /*
 481          * socket AF version is {newer than,or include}
 482          * actual datagram AF version
 483          */
 484
 485 #define INPLOOKUP_WILDCARD      1
 486 #ifdef __APPLE__
 487 #define INPCB_ALL_OWNERS        0xff
 488 #define INPCB_NO_OWNER          0x0
 489 #define INPCB_OWNED_BY_X        0x80
 490 #define INPCB_MAX_IDS           7
 491 #endif /* __APPLE__ */
 492
 493 #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
 494 #define sotoin6pcb(so)  sotoinpcb(so) /* for KAME src sync over BSD*'s */
 495
 496 #define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
 497
 498 #define INP_CHECK_SOCKAF(so, af)        (INP_SOCKAF(so) == af)
 499
 500 #ifdef KERNEL
 501 extern int      ipport_lowfirstauto;
 502 extern int      ipport_lowlastauto;
 503 extern int      ipport_firstauto;
 504 extern int      ipport_lastauto;
 505 extern int      ipport_hifirstauto;
 506 extern int      ipport_hilastauto;
 507
 508 #define INPCB_STATE_INUSE       0x1     /* freshly allocated PCB, it's in use */
 509 #define INPCB_STATE_CACHED      0x2     /* this pcb is sitting in a a cache */
 510 #define INPCB_STATE_DEAD        0x3     /* should treat as gone, will be garbage collected and freed */
 511
 512 #define WNT_STOPUSING   0xffff  /* marked as ready to be garbaged collected, should be treated as not found */
 513 #define WNT_ACQUIRE     0x1             /* that pcb is being acquired, do not recycle this time */
 514 #define WNT_RELEASE     0x2             /* release acquired mode, can be garbage collected when wantcnt is null */
 515
 516
 517 void    in_pcbpurgeif0(struct inpcb *, struct ifnet *);
 518 void    in_losing(struct inpcb *);
 519 void    in_rtchange(struct inpcb *, int);
 520 int     in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *);
 521 int     in_pcbbind(struct inpcb *, struct sockaddr *, struct proc *);
 522 int     in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *);
 523 void    in_pcbdetach(struct inpcb *);
 524 void    in_pcbdispose (struct inpcb *);
 525 void    in_pcbdisconnect(struct inpcb *);
 526 int     in_pcbinshash(struct inpcb *, int);
 527 int     in_pcbladdr(struct inpcb *, struct sockaddr *, struct sockaddr_in **);
 528 struct inpcb *
 529         in_pcblookup_local(struct inpcbinfo *, struct in_addr, u_int, int);
 530 struct inpcb *
 531         in_pcblookup_local_and_cleanup(struct inpcbinfo *, struct in_addr, u_int, int);
 532 struct inpcb *
 533         in_pcblookup_hash(struct inpcbinfo *,
 534                                struct in_addr, u_int, struct in_addr, u_int,
 535                                int, struct ifnet *);
 536 void    in_pcbnotifyall(struct inpcbinfo *, struct in_addr,
 537             int, void (*)(struct inpcb *, int));
 538 void    in_pcbrehash(struct inpcb *);
 539 int     in_setpeeraddr(struct socket *so, struct sockaddr **nam);
 540 int     in_setsockaddr(struct socket *so, struct sockaddr **nam);
 541 int     in_pcb_checkstate(struct inpcb *pcb, int mode, int locked);
 542
 543 int
 544 in_pcb_grab_port (struct inpcbinfo *pcbinfo,
 545                        u_short          options,
 546                        struct in_addr   laddr,
 547                        u_short          *lport,
 548                        struct in_addr   faddr,
 549                        u_short          fport,
 550                        u_int            cookie,
 551                        u_char           owner_id);
 552
 553 int
 554 in_pcb_letgo_port(struct inpcbinfo *pcbinfo,
 555                        struct in_addr laddr,
 556                        u_short lport,
 557                        struct in_addr faddr,
 558                        u_short fport, u_char owner_id);
 559
 560 u_char
 561 in_pcb_get_owner(struct inpcbinfo *pcbinfo,
 562                       struct in_addr laddr,
 563                       u_short lport,
 564                       struct in_addr faddr,
 565                       u_short fport,
 566                       u_int *cookie);
 567
 568 void in_pcb_nat_init(struct inpcbinfo *pcbinfo, int afamily, int pfamily,
 569                      int protocol);
 570
 571 int
 572 in_pcb_new_share_client(struct inpcbinfo *pcbinfo, u_char *owner_id);
 573
 574 int
 575 in_pcb_rem_share_client(struct inpcbinfo *pcbinfo, u_char owner_id);
 576
 577 void    in_pcbremlists(struct inpcb *inp);
 578 int     in_pcb_ckeckstate(struct inpcb *, int, int);
 579 void    inpcb_to_compat(struct inpcb *inp, struct inpcb_compat *inp_compat);
 580 #if CONFIG_FORCE_OUT_IFP
 581 void    pdp_context_route_locked(ifnet_t ifp, struct route *ro);
 582 #endif
 583
 584 #endif /* KERNEL */
 585 #endif /* KERNEL_PRIVATE */
 586
 587 #endif /* !_NETINET_IN_PCB_H_ */