bsd/netinet/in_pcb.h

   1 /*
   2  * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * Copyright (c) 1982, 1986, 1990, 1993
  32  *      The Regents of the University of California.  All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)in_pcb.h    8.1 (Berkeley) 6/10/93
  63  * $FreeBSD: src/sys/netinet/in_pcb.h,v 1.32.2.4 2001/08/13 16:26:17 ume Exp $
  64  */
  65
  66 #ifndef _NETINET_IN_PCB_H_
  67 #define _NETINET_IN_PCB_H_
  68 #include <sys/appleapiopts.h>
  69
  70 #include <sys/types.h>
  71 #include <sys/queue.h>
  72 #ifdef KERNEL_PRIVATE
  73 #ifdef KERNEL
  74 #include <kern/locks.h>
  75 #endif
  76 #endif /* KERNEL_PRIVATE */
  77
  78 #include <netinet6/ipsec.h> /* for IPSEC */
  79
  80 #ifdef KERNEL_PRIVATE
  81
  82 #define in6pcb          inpcb   /* for KAME src sync over BSD*'s */
  83 #define in6p_sp         inp_sp  /* for KAME src sync over BSD*'s */
  84
  85 /*
  86  * Common structure pcb for internet protocol implementation.
  87  * Here are stored pointers to local and foreign host table
  88  * entries, local and foreign socket numbers, and pointers
  89  * up (to a socket structure) and down (to a protocol-specific)
  90  * control block.
  91  */
  92 LIST_HEAD(inpcbhead, inpcb);
  93 LIST_HEAD(inpcbporthead, inpcbport);
  94 #endif /* KERNEL_PRIVATE */
  95 typedef u_quad_t        inp_gen_t;
  96
  97 /*
  98  * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
  99  * So, AF_INET6 null laddr is also used as AF_INET null laddr,
 100  * by utilize following structure. (At last, same as INRIA)
 101  */
 102 struct in_addr_4in6 {
 103         u_int32_t       ia46_pad32[3];
 104         struct  in_addr ia46_addr4;
 105 };
 106
 107 #ifdef KERNEL_PRIVATE
 108 /*
 109  * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
 110  * of the structure.  Therefore, it is important that the members in
 111  * that position not contain any information which is required to be
 112  * stable.
 113  */
 114 struct  icmp6_filter;
 115
 116 struct inpcb {
 117         LIST_ENTRY(inpcb) inp_hash;     /* hash list */
 118         int             inp_wantcnt;            /* pcb wanted count. protected by pcb list lock */
 119         int             inp_state;              /* state of this pcb, in use, recycled, ready for recycling... */
 120         u_short inp_fport;              /* foreign port */
 121         u_short inp_lport;              /* local port */
 122         LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */
 123         caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
 124         struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
 125         struct  socket *inp_socket;     /* back pointer to socket */
 126         u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
 127         u_long  nat_cookie;             /* Cookie stored and returned to NAT */
 128         LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */
 129         struct  inpcbport *inp_phd;     /* head of this list */
 130         inp_gen_t inp_gencnt;           /* generation count of this instance */
 131         int     inp_flags;              /* generic IP/datagram flags */
 132         u_int32_t inp_flow;
 133
 134         u_char  inp_vflag;      /* INP_IPV4 or INP_IPV6 */
 135
 136         u_char inp_ip_ttl;              /* time to live proto */
 137         u_char inp_ip_p;                /* protocol proto */
 138         /* protocol dependent part */
 139         union {
 140                 /* foreign host table entry */
 141                 struct  in_addr_4in6 inp46_foreign;
 142                 struct  in6_addr inp6_foreign;
 143         } inp_dependfaddr;
 144         union {
 145                 /* local host table entry */
 146                 struct  in_addr_4in6 inp46_local;
 147                 struct  in6_addr inp6_local;
 148         } inp_dependladdr;
 149         union {
 150                 /* placeholder for routing entry */
 151                 struct  route inp4_route;
 152                 struct  route_in6 inp6_route;
 153         } inp_dependroute;
 154         struct {
 155                 /* type of service proto */
 156                 u_char inp4_ip_tos;
 157                 /* IP options */
 158                 struct mbuf *inp4_options;
 159                 /* IP multicast options */
 160                 struct ip_moptions *inp4_moptions;
 161         } inp_depend4;
 162         struct {
 163                 /* IP options */
 164                 struct mbuf *inp6_options;
 165                 u_int8_t        inp6_hlim;
 166                 u_int8_t        unused_uint8_1;
 167                 ushort  unused_uint16_1;
 168                 /* IP6 options for outgoing packets */
 169                 struct  ip6_pktopts *inp6_outputopts;
 170                 /* IP multicast options */
 171                 struct  ip6_moptions *inp6_moptions;
 172                 /* ICMPv6 code type filter */
 173                 struct  icmp6_filter *inp6_icmp6filt;
 174                 /* IPV6_CHECKSUM setsockopt */
 175                 int     inp6_cksum;
 176                 u_short inp6_ifindex;
 177                 short   inp6_hops;
 178         } inp_depend6;
 179
 180         int     hash_element;           /* Array index of pcb's hash list    */
 181         caddr_t inp_saved_ppcb;         /* place to save pointer while cached */
 182         struct inpcbpolicy *inp_sp;
 183 #ifdef _KERN_LOCKS_H_
 184         lck_mtx_t *inpcb_mtx;   /* inpcb per-socket mutex */
 185 #else
 186         void      *inpcb_mtx;
 187 #endif
 188         u_long  reserved[2];            /* For future use */
 189 };
 190
 191 #endif /* KERNEL_PRIVATE */
 192
 193 /*
 194  * The range of the generation count, as used in this implementation,
 195  * is 9e19.  We would have to create 300 billion connections per
 196  * second for this number to roll over in a year.  This seems sufficiently
 197  * unlikely that we simply don't concern ourselves with that possibility.
 198  */
 199
 200 /*
 201  * Interface exported to userland by various protocols which use
 202  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
 203  */
 204
 205 /*
 206  * This is a copy of the inpcb as it shipped in Panther. This structure
 207  * is filled out in a copy function. This allows the inpcb to change
 208  * without breaking userland tools.
 209  *
 210  * CAUTION: Many fields may not be filled out. Fewer may be filled out
 211  * in the future. Code defensively.
 212  */
 213 #ifdef KERNEL_PRIVATE
 214 struct inpcb_compat {
 215 #else
 216 struct inpcbinfo;
 217 struct inpcbport;
 218 struct mbuf;
 219 struct  ip6_pktopts;
 220 struct  ip6_moptions;
 221 struct  icmp6_filter;
 222 struct inpcbpolicy;
 223
 224 struct inpcb {
 225 #endif /* KERNEL_PRIVATE */
 226         LIST_ENTRY(inpcb) inp_hash;     /* hash list */
 227         struct  in_addr reserved1;      /* APPLE reserved: inp_faddr defined in protcol indep. part */
 228         struct  in_addr reserved2; /* APPLE reserved */
 229         u_short inp_fport;              /* foreign port */
 230         u_short inp_lport;              /* local port */
 231         LIST_ENTRY(inpcb) inp_list;     /* list for all PCBs of this proto */
 232         caddr_t inp_ppcb;               /* pointer to per-protocol pcb */
 233         struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
 234         void*   inp_socket;     /* back pointer to socket */
 235         u_char  nat_owner;              /* Used to NAT TCP/UDP traffic */
 236         u_long  nat_cookie;             /* Cookie stored and returned to NAT */
 237         LIST_ENTRY(inpcb) inp_portlist; /* list for this PCB's local port */
 238         struct  inpcbport *inp_phd;     /* head of this list */
 239         inp_gen_t inp_gencnt;           /* generation count of this instance */
 240         int     inp_flags;              /* generic IP/datagram flags */
 241         u_int32_t inp_flow;
 242
 243         u_char  inp_vflag;
 244
 245         u_char inp_ip_ttl;              /* time to live proto */
 246         u_char inp_ip_p;                /* protocol proto */
 247         /* protocol dependent part */
 248         union {
 249                 /* foreign host table entry */
 250                 struct  in_addr_4in6 inp46_foreign;
 251                 struct  in6_addr inp6_foreign;
 252         } inp_dependfaddr;
 253         union {
 254                 /* local host table entry */
 255                 struct  in_addr_4in6 inp46_local;
 256                 struct  in6_addr inp6_local;
 257         } inp_dependladdr;
 258         union {
 259                 /* placeholder for routing entry */
 260                 u_char  inp4_route[20];
 261                 u_char  inp6_route[32];
 262         } inp_dependroute;
 263         struct {
 264                 /* type of service proto */
 265                 u_char inp4_ip_tos;
 266                 /* IP options */
 267                 struct mbuf *inp4_options;
 268                 /* IP multicast options */
 269                 struct ip_moptions *inp4_moptions;
 270         } inp_depend4;
 271
 272         struct {
 273                 /* IP options */
 274                 struct mbuf *inp6_options;
 275                 u_int8_t        inp6_hlim;
 276                 u_int8_t        unused_uint8_1;
 277                 ushort  unused_uint16_1;
 278                 /* IP6 options for outgoing packets */
 279                 struct  ip6_pktopts *inp6_outputopts;
 280                 /* IP multicast options */
 281                 struct  ip6_moptions *inp6_moptions;
 282                 /* ICMPv6 code type filter */
 283                 struct  icmp6_filter *inp6_icmp6filt;
 284                 /* IPV6_CHECKSUM setsockopt */
 285                 int     inp6_cksum;
 286                 u_short inp6_ifindex;
 287                 short   inp6_hops;
 288         } inp_depend6;
 289
 290         int     hash_element;           /* Array index of pcb's hash list    */
 291         caddr_t inp_saved_ppcb;         /* place to save pointer while cached */
 292         struct inpcbpolicy *inp_sp;
 293         u_long  reserved[3];            /* For future use */
 294 };
 295
 296 struct  xinpcb {
 297         size_t  xi_len;         /* length of this structure */
 298 #ifdef KERNEL_PRIVATE
 299         struct  inpcb_compat xi_inp;
 300 #else
 301         struct  inpcb xi_inp;
 302 #endif
 303         struct  xsocket xi_socket;
 304         u_quad_t        xi_alignment_hack;
 305 };
 306
 307 struct  xinpgen {
 308         size_t  xig_len;        /* length of this structure */
 309         u_int   xig_count;      /* number of PCBs at this time */
 310         inp_gen_t xig_gen;      /* generation count at this time */
 311         so_gen_t xig_sogen;     /* socket generation count at this time */
 312 };
 313
 314 /*
 315  * These defines are for use with the inpcb.
 316  */
 317 #define INP_IPV4        0x1
 318 #define INP_IPV6        0x2
 319 #define inp_faddr       inp_dependfaddr.inp46_foreign.ia46_addr4
 320 #define inp_laddr       inp_dependladdr.inp46_local.ia46_addr4
 321 #define inp_route       inp_dependroute.inp4_route
 322 #define inp_ip_tos      inp_depend4.inp4_ip_tos
 323 #define inp_options     inp_depend4.inp4_options
 324 #define inp_moptions    inp_depend4.inp4_moptions
 325 #define in6p_faddr      inp_dependfaddr.inp6_foreign
 326 #define in6p_laddr      inp_dependladdr.inp6_local
 327 #define in6p_route      inp_dependroute.inp6_route
 328 #define in6p_ip6_hlim   inp_depend6.inp6_hlim
 329 #define in6p_hops       inp_depend6.inp6_hops   /* default hop limit */
 330 #define in6p_ip6_nxt    inp_ip_p
 331 #define in6p_flowinfo   inp_flow
 332 #define in6p_vflag      inp_vflag
 333 #define in6p_options    inp_depend6.inp6_options
 334 #define in6p_outputopts inp_depend6.inp6_outputopts
 335 #define in6p_moptions   inp_depend6.inp6_moptions
 336 #define in6p_icmp6filt  inp_depend6.inp6_icmp6filt
 337 #define in6p_cksum      inp_depend6.inp6_cksum
 338 #define inp6_ifindex    inp_depend6.inp6_ifindex
 339 #define in6p_flags      inp_flags  /* for KAME src sync over BSD*'s */
 340 #define in6p_socket     inp_socket  /* for KAME src sync over BSD*'s */
 341 #define in6p_lport      inp_lport  /* for KAME src sync over BSD*'s */
 342 #define in6p_fport      inp_fport  /* for KAME src sync over BSD*'s */
 343 #define in6p_ppcb       inp_ppcb  /* for KAME src sync over BSD*'s */
 344 #define in6p_state      inp_state
 345 #define in6p_wantcnt    inp_wantcnt
 346
 347 #ifdef KERNEL_PRIVATE
 348 struct inpcbport {
 349         LIST_ENTRY(inpcbport) phd_hash;
 350         struct inpcbhead phd_pcblist;
 351         u_short phd_port;
 352 };
 353
 354 struct inpcbinfo {              /* XXX documentation, prefixes */
 355         struct  inpcbhead *hashbase;
 356 #ifdef __APPLE__
 357         u_long  hashsize; /* in elements */
 358 #endif
 359         u_long  hashmask;
 360         struct  inpcbporthead *porthashbase;
 361         u_long  porthashmask;
 362         struct  inpcbhead *listhead;
 363         u_short lastport;
 364         u_short lastlow;
 365         u_short lasthi;
 366         void   *ipi_zone; /* zone to allocate pcbs from */
 367         u_int   ipi_count;      /* number of pcbs in this list */
 368         u_quad_t ipi_gencnt;    /* current generation count */
 369 #ifdef __APPLE__
 370         u_char   all_owners;
 371         struct  socket nat_dummy_socket; /* fake socket for NAT pcb backpointer */
 372         struct  inpcb *nat_dummy_pcb;    /* fake pcb for finding NAT mutex */
 373         caddr_t  dummy_cb;
 374 #ifdef _KERN_LOCKS_H_
 375         lck_attr_t              *mtx_attr;              /* mutex attributes */
 376         lck_grp_t                       *mtx_grp;                       /* mutex group definition */
 377         lck_grp_attr_t  *mtx_grp_attr;  /* mutex group attributes */
 378         lck_rw_t                        *mtx;                   /* global mutex for the pcblist*/
 379 #else
 380         void    *mtx_attr;      /* mutex attributes */
 381         void    *mtx_grp;       /* mutex group definition */
 382         void    *mtx_grp_attr;  /* mutex group attributes */
 383         void    *mtx;           /* global mutex for the pcblist*/
 384 #endif
 385 #endif
 386 };
 387
 388 #define INP_PCBHASH(faddr, lport, fport, mask) \
 389         (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask))
 390 #define INP_PCBPORTHASH(lport, mask) \
 391         (ntohs((lport)) & (mask))
 392
 393 #endif /* KERNEL_PRIVATE */
 394
 395 /* flags in inp_flags: */
 396 #define INP_RECVOPTS            0x01    /* receive incoming IP options */
 397 #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
 398 #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
 399 #define INP_HDRINCL             0x08    /* user supplies entire IP header */
 400 #define INP_HIGHPORT            0x10    /* user wants "high" port binding */
 401 #define INP_LOWPORT             0x20    /* user wants "low" port binding */
 402 #define INP_ANONPORT            0x40    /* port chosen for user */
 403 #define INP_RECVIF              0x80    /* receive incoming interface */
 404 #define INP_MTUDISC             0x100   /* user can do MTU discovery */
 405 #ifdef __APPLE__
 406 #define INP_STRIPHDR            0x200   /* Strip headers in raw_ip, for OT support */
 407 #endif
 408 #define  INP_FAITH                      0x400   /* accept FAITH'ed connections */
 409 #define  INP_INADDR_ANY         0x800   /* local address wasn't specified */
 410
 411 #define INP_RECVTTL             0x1000
 412
 413 #define IN6P_IPV6_V6ONLY        0x008000 /* restrict AF_INET6 socket for v6 */
 414
 415 #define IN6P_PKTINFO            0x010000 /* receive IP6 dst and I/F */
 416 #define IN6P_HOPLIMIT           0x020000 /* receive hoplimit */
 417 #define IN6P_HOPOPTS            0x040000 /* receive hop-by-hop options */
 418 #define IN6P_DSTOPTS            0x080000 /* receive dst options after rthdr */
 419 #define IN6P_RTHDR              0x100000 /* receive routing header */
 420 #define IN6P_RTHDRDSTOPTS       0x200000 /* receive dstoptions before rthdr */
 421 #define IN6P_AUTOFLOWLABEL      0x800000 /* attach flowlabel automatically */
 422 #define IN6P_BINDV6ONLY         0x10000000 /* do not grab IPv4 traffic */
 423
 424 #ifdef KERNEL_PRIVATE
 425 #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
 426                                         INP_RECVIF|\
 427                                  IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
 428                                  IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
 429                                  IN6P_AUTOFLOWLABEL|INP_RECVTTL)
 430 #define INP_UNMAPPABLEOPTS      (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
 431                                  IN6P_AUTOFLOWLABEL)
 432
 433  /* for KAME src sync over BSD*'s */
 434 #define IN6P_HIGHPORT           INP_HIGHPORT
 435 #define IN6P_LOWPORT            INP_LOWPORT
 436 #define IN6P_ANONPORT           INP_ANONPORT
 437 #define IN6P_RECVIF             INP_RECVIF
 438 #define IN6P_MTUDISC            INP_MTUDISC
 439 #define IN6P_FAITH              INP_FAITH
 440 #define IN6P_CONTROLOPTS INP_CONTROLOPTS
 441         /*
 442          * socket AF version is {newer than,or include}
 443          * actual datagram AF version
 444          */
 445
 446 #define INPLOOKUP_WILDCARD      1
 447 #ifdef __APPLE__
 448 #define INPCB_ALL_OWNERS        0xff
 449 #define INPCB_NO_OWNER          0x0
 450 #define INPCB_OWNED_BY_X        0x80
 451 #define INPCB_MAX_IDS           7
 452 #endif /* __APPLE__ */
 453
 454 #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
 455 #define sotoin6pcb(so)  sotoinpcb(so) /* for KAME src sync over BSD*'s */
 456
 457 #define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
 458
 459 #define INP_CHECK_SOCKAF(so, af)        (INP_SOCKAF(so) == af)
 460
 461 #ifdef KERNEL
 462 extern int      ipport_lowfirstauto;
 463 extern int      ipport_lowlastauto;
 464 extern int      ipport_firstauto;
 465 extern int      ipport_lastauto;
 466 extern int      ipport_hifirstauto;
 467 extern int      ipport_hilastauto;
 468
 469 #define INPCB_STATE_INUSE       0x1     /* freshly allocated PCB, it's in use */
 470 #define INPCB_STATE_CACHED      0x2     /* this pcb is sitting in a a cache */
 471 #define INPCB_STATE_DEAD        0x3     /* should treat as gone, will be garbage collected and freed */
 472
 473 #define WNT_STOPUSING   0xffff  /* marked as ready to be garbaged collected, should be treated as not found */
 474 #define WNT_ACQUIRE     0x1             /* that pcb is being acquired, do not recycle this time */
 475 #define WNT_RELEASE     0x2             /* release acquired mode, can be garbage collected when wantcnt is null */
 476
 477
 478 void    in_pcbpurgeif0(struct inpcb *, struct ifnet *);
 479 void    in_losing(struct inpcb *);
 480 void    in_rtchange(struct inpcb *, int);
 481 int     in_pcballoc(struct socket *, struct inpcbinfo *, struct proc *);
 482 int     in_pcbbind(struct inpcb *, struct sockaddr *, struct proc *);
 483 int     in_pcbconnect(struct inpcb *, struct sockaddr *, struct proc *);
 484 void    in_pcbdetach(struct inpcb *);
 485 void    in_pcbdispose (struct inpcb *);
 486 void    in_pcbdisconnect(struct inpcb *);
 487 int     in_pcbinshash(struct inpcb *, int);
 488 int     in_pcbladdr(struct inpcb *, struct sockaddr *, struct sockaddr_in **);
 489 struct inpcb *
 490         in_pcblookup_local(struct inpcbinfo *, struct in_addr, u_int, int);
 491 struct inpcb *
 492         in_pcblookup_hash(struct inpcbinfo *,
 493                                struct in_addr, u_int, struct in_addr, u_int,
 494                                int, struct ifnet *);
 495 void    in_pcbnotifyall(struct inpcbinfo *, struct in_addr,
 496             int, void (*)(struct inpcb *, int));
 497 void    in_pcbrehash(struct inpcb *);
 498 int     in_setpeeraddr(struct socket *so, struct sockaddr **nam);
 499 int     in_setsockaddr(struct socket *so, struct sockaddr **nam);
 500 int     in_pcb_checkstate(struct inpcb *pcb, int mode, int locked);
 501
 502 int
 503 in_pcb_grab_port (struct inpcbinfo *pcbinfo,
 504                        u_short          options,
 505                        struct in_addr   laddr,
 506                        u_short          *lport,
 507                        struct in_addr   faddr,
 508                        u_short          fport,
 509                        u_int            cookie,
 510                        u_char           owner_id);
 511
 512 int
 513 in_pcb_letgo_port(struct inpcbinfo *pcbinfo,
 514                        struct in_addr laddr,
 515                        u_short lport,
 516                        struct in_addr faddr,
 517                        u_short fport, u_char owner_id);
 518
 519 u_char
 520 in_pcb_get_owner(struct inpcbinfo *pcbinfo,
 521                       struct in_addr laddr,
 522                       u_short lport,
 523                       struct in_addr faddr,
 524                       u_short fport,
 525                       u_int *cookie);
 526
 527 void in_pcb_nat_init(struct inpcbinfo *pcbinfo, int afamily, int pfamily,
 528                      int protocol);
 529
 530 int
 531 in_pcb_new_share_client(struct inpcbinfo *pcbinfo, u_char *owner_id);
 532
 533 int
 534 in_pcb_rem_share_client(struct inpcbinfo *pcbinfo, u_char owner_id);
 535
 536 void    in_pcbremlists(struct inpcb *inp);
 537 int     in_pcb_ckeckstate(struct inpcb *, int, int);
 538 void    inpcb_to_compat(struct inpcb *inp, struct inpcb_compat *inp_compat);
 539
 540 #endif /* KERNEL */
 541 #endif /* KERNEL_PRIVATE */
 542
 543 #endif /* !_NETINET_IN_PCB_H_ */