sys/netinet/in_pcb.h

   1 /*
   2  * Copyright (c) 2004 Jeffrey M. Hsu.  All rights reserved.
   3  * Copyright (c) 2004 The DragonFly Project.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to The DragonFly Project
   6  * by Jeffrey M. Hsu.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of The DragonFly Project nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific, prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  24  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  30  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /*
  35  * Copyright (c) 1982, 1986, 1990, 1993
  36  *      The Regents of the University of California.  All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  * 1. Redistributions of source code must retain the above copyright
  42  *    notice, this list of conditions and the following disclaimer.
  43  * 2. Redistributions in binary form must reproduce the above copyright
  44  *    notice, this list of conditions and the following disclaimer in the
  45  *    documentation and/or other materials provided with the distribution.
  46  * 3. 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 1.32.2.7 2003/01/24 05:11:34 sam Exp $
  64  */
  65
  66 #ifndef _NETINET_IN_PCB_H_
  67 #define _NETINET_IN_PCB_H_
  68
  69 #ifndef _SYS_QUEUE_H_
  70 #include <sys/queue.h>
  71 #endif
  72 #ifndef _SYS_SYSCTL_H_
  73 #include <sys/sysctl.h>
  74 #endif
  75 #ifndef _NETINET_IN_H_
  76 #include <netinet/in.h>
  77 #endif
  78 #ifndef _NET_ROUTE_H_
  79 #include <net/route.h>
  80 #endif
  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 struct inpcbpolicy;
  85
  86 /*
  87  * Common structure pcb for internet protocol implementation.
  88  * Here are stored pointers to local and foreign host table
  89  * entries, local and foreign socket numbers, and pointers
  90  * up (to a socket structure) and down (to a protocol-specific)
  91  * control block.
  92  */
  93 LIST_HEAD(inpcbhead, inpcb);
  94 LIST_HEAD(inpcbporthead, inpcbport);
  95 typedef u_quad_t        inp_gen_t;
  96
  97 struct inpcontainer {
  98         struct inpcb                    *ic_inp;
  99         LIST_ENTRY(inpcontainer)        ic_list;
 100 };
 101 LIST_HEAD(inpcontainerhead, inpcontainer);
 102
 103 /*
 104  * PCB with AF_INET6 null bind'ed laddr can receive AF_INET input packet.
 105  * So, AF_INET6 null laddr is also used as AF_INET null laddr,
 106  * by utilize following structure. (At last, same as INRIA)
 107  */
 108 struct in_addr_4in6 {
 109         u_int32_t       ia46_pad32[3];
 110         struct  in_addr ia46_addr4;
 111 };
 112
 113 union in_dependaddr {
 114         struct in_addr_4in6 id46_addr;
 115         struct in6_addr id6_addr;
 116 };
 117
 118 /*
 119  * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553.
 120  * in_conninfo has some extra padding to accomplish this.
 121  */
 122 struct in_endpoints {
 123         u_int16_t       ie_fport;               /* foreign port */
 124         u_int16_t       ie_lport;               /* local port */
 125         /* protocol dependent part, local and foreign addr */
 126         union in_dependaddr ie_dependfaddr;     /* foreign host table entry */
 127         union in_dependaddr ie_dependladdr;     /* local host table entry */
 128 #define ie_faddr        ie_dependfaddr.id46_addr.ia46_addr4
 129 #define ie_laddr        ie_dependladdr.id46_addr.ia46_addr4
 130 #define ie6_faddr       ie_dependfaddr.id6_addr
 131 #define ie6_laddr       ie_dependladdr.id6_addr
 132 };
 133
 134 struct inp_localgroup {
 135         LIST_ENTRY(inp_localgroup) il_list;
 136         uint16_t        il_lport;
 137         u_char          il_af;          /* AF_INET or AF_INET6 */
 138         u_char          il_pad;
 139         uint32_t        il_pad2;
 140         union in_dependaddr il_dependladdr;
 141 #define il_laddr        il_dependladdr.id46_addr.ia46_addr4
 142 #define il6_laddr       il_dependladdr.id6_addr
 143         int             il_inpsiz;      /* size of il_inp[] */
 144         int             il_inpcnt;      /* # of elem in il_inp[] */
 145         struct inpcb    *il_inp[];
 146 };
 147 LIST_HEAD(inp_localgrphead, inp_localgroup);
 148
 149 /*
 150  * XXX
 151  * At some point struct route should possibly change to:
 152  *   struct rtentry *rt
 153  *   struct in_endpoints *ie;
 154  */
 155 struct in_conninfo {
 156         u_int8_t        inc_flags;
 157         u_int8_t        inc_len;
 158         u_int16_t       inc_pad;        /* XXX alignment for in_endpoints */
 159         /* protocol dependent part; cached route */
 160         struct  in_endpoints inc_ie;
 161         union {
 162                 /* placeholder for routing entry */
 163                 struct  route inc4_route;
 164                 struct  route_in6 inc6_route;
 165         } inc_dependroute;
 166 };
 167 #define inc_isipv6      inc_flags       /* temp compatibility */
 168 #define inc_fport       inc_ie.ie_fport
 169 #define inc_lport       inc_ie.ie_lport
 170 #define inc_faddr       inc_ie.ie_faddr
 171 #define inc_laddr       inc_ie.ie_laddr
 172 #define inc_route       inc_dependroute.inc4_route
 173 #define inc6_faddr      inc_ie.ie6_faddr
 174 #define inc6_laddr      inc_ie.ie6_laddr
 175 #define inc6_route      inc_dependroute.inc6_route
 176
 177 /*
 178  * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
 179  * of the structure.  Therefore, it is important that the members in
 180  * that position not contain any information which is required to be
 181  * stable.
 182  */
 183 struct  icmp6_filter;
 184 struct  inpcbportinfo;
 185
 186 struct inpcb {
 187         LIST_ENTRY(inpcb) inp_hash; /* hash list */
 188         LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
 189         u_int32_t       inp_flow;
 190         int             inp_lgrpindex;  /* local group index */
 191
 192         /* local and foreign ports, local and foreign addr */
 193         struct  in_conninfo inp_inc;
 194
 195         void    *inp_ppcb;              /* pointer to per-protocol pcb */
 196         struct  inpcbinfo *inp_pcbinfo; /* PCB list info */
 197         struct  socket *inp_socket;     /* back pointer to socket */
 198                                         /* list for this PCB's local port */
 199         int             inp_flags;      /* generic IP/datagram flags */
 200         uint16_t        inp_hashval;    /* valid iff INP_HASH */
 201         uint16_t        inp_pad;        /* explicit padding */
 202
 203         struct  inpcbpolicy *inp_sp; /* for IPSEC */
 204         u_char  inp_af;                 /* AF_INET or AF_INET6 */
 205         u_char  inp_ip_ttl;             /* time to live proto */
 206         u_char  inp_ip_p;               /* protocol proto */
 207         u_char  inp_ip_minttl;          /* minimum TTL or drop */
 208
 209         /* protocol dependent part; options */
 210         struct {
 211                 u_char  inp4_ip_tos;            /* type of service proto */
 212                 struct  mbuf *inp4_options;     /* IP options */
 213                 struct  ip_moptions *inp4_moptions; /* IP multicast options */
 214         } inp_depend4;
 215 #define inp_fport       inp_inc.inc_fport
 216 #define inp_lport       inp_inc.inc_lport
 217 #define inp_faddr       inp_inc.inc_faddr
 218 #define inp_laddr       inp_inc.inc_laddr
 219 #define inp_route       inp_inc.inc_route
 220 #define inp_ip_tos      inp_depend4.inp4_ip_tos
 221 #define inp_options     inp_depend4.inp4_options
 222 #define inp_moptions    inp_depend4.inp4_moptions
 223         struct {
 224                 /* IP options */
 225                 struct  mbuf *inp6_options;
 226                 /* IP6 options for outgoing packets */
 227                 struct  ip6_pktopts *inp6_outputopts;
 228                 /* IP multicast options */
 229                 struct  ip6_moptions *inp6_moptions;
 230                 /* ICMPv6 code type filter */
 231                 struct  icmp6_filter *inp6_icmp6filt;
 232                 /* IPV6_CHECKSUM setsockopt */
 233                 int     inp6_cksum;
 234                 u_short inp6_ifindex;
 235                 short   inp6_hops;
 236                 u_int8_t        inp6_hlim;
 237         } inp_depend6;
 238         LIST_ENTRY(inpcb) inp_portlist;
 239         struct  inpcbporthead *inp_porthash;
 240         struct  inpcbport *inp_phd;     /* head of this list */
 241         inp_gen_t       inp_gencnt;     /* generation count of this instance */
 242 #define in6p_faddr      inp_inc.inc6_faddr
 243 #define in6p_laddr      inp_inc.inc6_laddr
 244 #define in6p_route      inp_inc.inc6_route
 245 #define in6p_ip6_hlim   inp_depend6.inp6_hlim
 246 #define in6p_hops       inp_depend6.inp6_hops   /* default hop limit */
 247 #define in6p_ip6_nxt    inp_ip_p
 248 #define in6p_flowinfo   inp_flow
 249 #define in6p_af         inp_af
 250 #define in6p_options    inp_depend6.inp6_options
 251 #define in6p_outputopts inp_depend6.inp6_outputopts
 252 #define in6p_moptions   inp_depend6.inp6_moptions
 253 #define in6p_icmp6filt  inp_depend6.inp6_icmp6filt
 254 #define in6p_cksum      inp_depend6.inp6_cksum
 255 #define inp6_ifindex    inp_depend6.inp6_ifindex
 256 #define in6p_flags      inp_flags  /* for KAME src sync over BSD*'s */
 257 #define in6p_socket     inp_socket  /* for KAME src sync over BSD*'s */
 258 #define in6p_lport      inp_lport  /* for KAME src sync over BSD*'s */
 259 #define in6p_fport      inp_fport  /* for KAME src sync over BSD*'s */
 260 #define in6p_ppcb       inp_ppcb  /* for KAME src sync over BSD*'s */
 261
 262         void    *inp_pf_sk;
 263 };
 264 /*
 265  * The range of the generation count, as used in this implementation,
 266  * is 9e19.  We would have to create 300 billion connections per
 267  * second for this number to roll over in a year.  This seems sufficiently
 268  * unlikely that we simply don't concern ourselves with that possibility.
 269  */
 270
 271 /*
 272  * Interface exported to userland by various protocols which use
 273  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
 274  */
 275 #ifdef _SYS_SOCKETVAR_H_
 276 struct  xinpcb {
 277         size_t  xi_len;         /* length of this structure */
 278         struct  inpcb xi_inp;
 279         struct  xsocket xi_socket;
 280         u_quad_t        xi_alignment_hack;
 281 };
 282 #endif /* _SYS_SOCKETVAR_H_ */
 283
 284 struct inpcbport {
 285         LIST_ENTRY(inpcbport) phd_hash;
 286         struct inpcbhead phd_pcblist;
 287         u_short phd_port;
 288 };
 289
 290 struct lwkt_token;
 291
 292 struct inpcbportinfo {
 293         struct  inpcbporthead *porthashbase;
 294         u_long  porthashmask;
 295         u_short offset;
 296         u_short lastport;
 297         u_short lastlow;
 298         u_short lasthi;
 299 } __cachealign;
 300
 301 struct inpcbinfo {              /* XXX documentation, prefixes */
 302         struct  lwkt_token *infotoken;  /* if this inpcbinfo is shared */
 303         struct  inpcbhead *hashbase;
 304         u_long  hashmask;
 305         int     portinfo_cnt;
 306         struct  inpcbportinfo *portinfo;
 307         struct  inpcbport *portsave;    /* port allocation cache */
 308         struct  inpcontainerhead *wildcardhashbase;
 309         u_long  wildcardhashmask;
 310         struct  inp_localgrphead *localgrphashbase;
 311         u_long  localgrphashmask;
 312         struct  inpcbhead pcblisthead;  /* head of queue of active pcb's */
 313         size_t  ipi_size;       /* allocation size for pcbs */
 314         u_int   ipi_count;      /* number of pcbs in this list */
 315         int     cpu;            /* related protocol thread cpu */
 316         u_quad_t ipi_gencnt;    /* current generation count */
 317 } __cachealign;
 318
 319
 320 #define INP_PCBCONNHASH(faddr, fport, laddr, lport, mask)               \
 321     (((faddr) ^ ((faddr) >> 16) ^ (laddr) ^ ntohs((lport) ^ (fport))) & (mask))
 322
 323 #define INP_PCBPORTHASH(lport, mask)            (ntohs(lport) & (mask))
 324
 325 #define INP_PCBWILDCARDHASH(lport, mask)        (ntohs(lport) & (mask))
 326
 327 #define INP_PCBLOCALGRPHASH(lport, mask)        (ntohs(lport) & (mask))
 328
 329 /* flags in inp_flags: */
 330 #define INP_RECVOPTS            0x01    /* receive incoming IP options */
 331 #define INP_RECVRETOPTS         0x02    /* receive IP options for reply */
 332 #define INP_RECVDSTADDR         0x04    /* receive IP dst address */
 333 #define INP_HDRINCL             0x08    /* user supplies entire IP header */
 334 #define INP_HIGHPORT            0x10    /* user wants "high" port binding */
 335 #define INP_LOWPORT             0x20    /* user wants "low" port binding */
 336 #define INP_ANONPORT            0x40    /* port chosen for user */
 337 #define INP_RECVIF              0x80    /* receive incoming interface */
 338 #define INP_MTUDISC             0x100   /* user can do MTU discovery */
 339 #define INP_FAITH               0x200   /* accept FAITH'ed connections */
 340 #define INP_WILDCARD            0x400   /* wildcard match */
 341 #define INP_FLAG_PROTO2         0x800   /* protocol specific */
 342 #define INP_CONNECTED           0x1000  /* exact match */
 343 #define INP_FLAG_PROTO1         0x2000  /* protocol specific */
 344 #define INP_PLACEMARKER         0x4000  /* skip this pcb, its a placemarker */
 345 #define INP_HASH                0x8000  /* inp_hashval is valid */
 346
 347 #define IN6P_PKTINFO            0x010000 /* receive IP6 dst and I/F */
 348 #define IN6P_HOPLIMIT           0x020000 /* receive hoplimit */
 349 #define IN6P_HOPOPTS            0x040000 /* receive hop-by-hop options */
 350 #define IN6P_DSTOPTS            0x080000 /* receive dst options after rthdr */
 351 #define IN6P_RTHDR              0x100000 /* receive routing header */
 352 #define IN6P_RTHDRDSTOPTS       0x200000 /* receive dstoptions before rthdr */
 353 #define IN6P_AUTOFLOWLABEL      0x800000 /* attach flowlabel automatically */
 354 /*
 355  * RFC3542 Definition
 356  */
 357 #define IN6P_TCLASS             0x400000 /* receive traffic class value */
 358 #define IN6P_RFC2292            0x40000000 /* used RFC2292 API on the socket */
 359 #define IN6P_MTU                0x80000000 /* receive path MTU */
 360
 361 /* 0x10000000 unused */
 362 #define INP_ONLIST              0x20000000 /* on pcblist */
 363 #define INP_RECVTTL             0x80000000 /* receive incoming IP TTL */
 364
 365 #define INP_CONTROLOPTS         (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
 366                                  INP_RECVIF|INP_RECVTTL|\
 367                                  IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
 368                                  IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
 369                                  IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
 370                                  IN6P_MTU)
 371
 372 #define INP_UNMAPPABLEOPTS      (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
 373                                  IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
 374
 375  /* for KAME src sync over BSD*'s */
 376 #define IN6P_HIGHPORT           INP_HIGHPORT
 377 #define IN6P_LOWPORT            INP_LOWPORT
 378 #define IN6P_ANONPORT           INP_ANONPORT
 379 #define IN6P_RECVIF             INP_RECVIF
 380 #define IN6P_MTUDISC            INP_MTUDISC
 381 #define IN6P_FAITH              INP_FAITH
 382 #define IN6P_CONTROLOPTS INP_CONTROLOPTS
 383         /*
 384          * socket AF version is {newer than,or include}
 385          * actual datagram AF version
 386          */
 387
 388 #define INPLOOKUP_WILDCARD      1
 389 #define sotoinpcb(so)   ((struct inpcb *)(so)->so_pcb)
 390 #define sotoin6pcb(so)  sotoinpcb(so) /* for KAME src sync over BSD*'s */
 391
 392 /* macros for handling bitmap of ports not to allocate dynamically */
 393 #define DP_MAPBITS      (sizeof(u_int32_t) * NBBY)
 394 #define DP_MAPSIZE      (howmany(65536, DP_MAPBITS))
 395 #define DP_SET(m, p)    ((m)[(p) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS)))
 396 #define DP_CLR(m, p)    ((m)[(p) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS)))
 397 #define DP_ISSET(m, p)  ((m)[(p) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS)))
 398
 399 /* default values for baddynamicports [see ip_init()] */
 400 #define DEFBADDYNAMICPORTS_TCP  { \
 401         587, 749, 750, 751, 871, 2049, \
 402         6000, 6001, 6002, 6003, 6004, 6005, 6006, 6007, 6008, 6009, 6010, \
 403         0 }
 404 #define DEFBADDYNAMICPORTS_UDP  { 623, 664, 749, 750, 751, 2049, 0 }
 405
 406 struct baddynamicports {
 407         u_int32_t tcp[DP_MAPSIZE];
 408         u_int32_t udp[DP_MAPSIZE];
 409 };
 410
 411
 412 #define INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
 413 #define INP_CHECK_SOCKAF(so, af)        (INP_SOCKAF(so) == af)
 414
 415 #define INP_ISIPV6(inp)                 ((inp)->inp_af == AF_INET6)
 416 #define INP_ISIPV4(inp)                 ((inp)->inp_af == AF_INET)
 417
 418 #ifdef _KERNEL
 419
 420 static __inline struct inpcbporthead *
 421 in_pcbporthash_head(struct inpcbportinfo *portinfo, u_short lport)
 422 {
 423         return &portinfo->porthashbase[
 424             INP_PCBPORTHASH(lport, portinfo->porthashmask)];
 425 }
 426
 427 #define GET_PORTHASH_TOKEN(porthashhead) \
 428 do { \
 429         lwkt_getpooltoken((porthashhead)); \
 430 } while (0)
 431
 432 #define REL_PORTHASH_TOKEN(porthashhead) \
 433 do { \
 434         lwkt_relpooltoken((porthashhead)); \
 435 } while (0)
 436
 437 #ifdef INVARIANTS
 438 #define ASSERT_PORTHASH_TOKEN_HELD(pcbhashhead) \
 439         ASSERT_LWKT_TOKEN_HELD(lwkt_token_pool_lookup((pcbhashhead)))
 440 #else
 441 #define ASSERT_PORTHASH_TOKEN_HELD(pcbhashhead)
 442 #endif
 443
 444 #define GET_PCBINFO_TOKEN(pcbinfo) \
 445 do { \
 446         if ((pcbinfo)->infotoken) \
 447                 lwkt_gettoken((pcbinfo)->infotoken); \
 448 } while (0)
 449
 450 #define REL_PCBINFO_TOKEN(pcbinfo) \
 451 do { \
 452         if ((pcbinfo)->infotoken) \
 453                 lwkt_reltoken((pcbinfo)->infotoken); \
 454 } while (0)
 455
 456 #ifdef INVARIANTS
 457 #define ASSERT_PCBINFO_TOKEN_HELD(pcbinfo) \
 458 do { \
 459         if ((pcbinfo)->infotoken) \
 460                 ASSERT_LWKT_TOKEN_HELD((pcbinfo)->infotoken); \
 461 } while (0)
 462 #else   /* !INVARIANTS */
 463 #define ASSERT_PCBINFO_TOKEN_HELD(pcbinfo)
 464 #endif  /* INVARIANTS */
 465
 466 #ifdef INVARIANTS
 467 #define ASSERT_INP_NOTINHASH(inp) \
 468 do { \
 469         KASSERT(!((inp)->inp_flags & INP_CONNECTED), \
 470             ("already on connhash")); \
 471         KASSERT(!((inp)->inp_flags & INP_WILDCARD), \
 472             ("already on wildcardhash")); \
 473 } while (0)
 474 #else   /* !INVARIANTS */
 475 #define ASSERT_INP_NOTINHASH(inp)
 476 #endif  /* INVARIANTS */
 477
 478 extern int      ipport_lowfirstauto;
 479 extern int      ipport_lowlastauto;
 480 extern int      ipport_firstauto;
 481 extern int      ipport_lastauto;
 482 extern int      ipport_hifirstauto;
 483 extern int      ipport_hilastauto;
 484
 485 union netmsg;
 486 struct xinpcb;
 487
 488 typedef void    (*inp_notify_t)(struct inpcb *, int);
 489
 490 u_short in_pcblastport_down(volatile u_short *, u_short, u_short, u_short);
 491 u_short in_pcblastport_up(volatile u_short *, u_short, u_short, u_short);
 492 void    in_pcbportrange(u_short *, u_short *, u_short, u_short);
 493 void    in_pcbpurgeif0 (struct inpcbinfo *, struct ifnet *);
 494 void    in_losing (struct inpcb *);
 495 void    in_rtchange (struct inpcb *, int);
 496 void    in_pcbinfo_init (struct inpcbinfo *, int, boolean_t);
 497 void    in_pcbportinfo_init (struct inpcbportinfo *, int, u_short);
 498 void    in_pcbportinfo_set(struct inpcbinfo *, struct inpcbportinfo *, int);
 499 int     in_pcballoc (struct socket *, struct inpcbinfo *);
 500 void    in_pcbunlink (struct inpcb *, struct inpcbinfo *);
 501 void    in_pcbunlink_flags (struct inpcb *, struct inpcbinfo *, int);
 502 void    in_pcblink (struct inpcb *, struct inpcbinfo *);
 503 void    in_pcblink_flags (struct inpcb *, struct inpcbinfo *, int);
 504 void    in_pcbonlist (struct inpcb *);
 505 void    in_pcbofflist (struct inpcb *);
 506 int     in_pcbbind (struct inpcb *, struct sockaddr *, struct thread *);
 507 int     in_pcbbind_remote(struct inpcb *, const struct sockaddr *,
 508             struct thread *);
 509 int     in_pcbconnect (struct inpcb *, struct sockaddr *, struct thread *);
 510 void    in_pcbdetach (struct inpcb *);
 511 void    in_pcbdisconnect (struct inpcb *);
 512 void    in_pcbinswildcardhash(struct inpcb *inp);
 513 void    in_pcbinswildcardhash_oncpu(struct inpcb *, struct inpcbinfo *);
 514 void    in_pcbinsconnhash(struct inpcb *inp);
 515 void    in_pcbinsporthash(struct inpcbporthead *, struct inpcb *);
 516 void    in_pcbinsporthash_lport (struct inpcb *);
 517 void    in_pcbremporthash (struct inpcb *);
 518 int     in_pcbladdr (struct inpcb *, struct sockaddr *,
 519             struct sockaddr_in **, struct thread *);
 520 int     in_pcbladdr_find (struct inpcb *, struct sockaddr *,
 521             struct sockaddr_in **, struct thread *, int);
 522 struct inpcb *
 523         in_pcblookup_hash (struct inpcbinfo *,
 524                                struct in_addr, u_int, struct in_addr, u_int,
 525                                boolean_t, struct ifnet *);
 526 struct inpcb *
 527         in_pcblookup_pkthash (struct inpcbinfo *,
 528                                struct in_addr, u_int, struct in_addr, u_int,
 529                                boolean_t, struct ifnet *, const struct mbuf *);
 530 void    in_pcbnotifyall (struct inpcbinfo *, struct in_addr,
 531             int, inp_notify_t);
 532 int     in_setpeeraddr (struct socket *so, struct sockaddr **nam);
 533 void    in_setpeeraddr_dispatch(union netmsg *);
 534 void    in_setsockaddr_dispatch(netmsg_t msg);
 535 int     in_baddynamic(u_int16_t, u_int16_t);
 536 void    in_pcbremwildcardhash(struct inpcb *inp);
 537 void    in_pcbremwildcardhash_oncpu(struct inpcb *, struct inpcbinfo *);
 538 void    in_pcbremconnhash(struct inpcb *inp);
 539 void    in_pcbremlists (struct inpcb *inp);
 540 int     prison_xinpcb (struct thread *p, struct inpcb *inp);
 541 void    in_savefaddr (struct socket *so, const struct sockaddr *faddr);
 542 struct inpcb *
 543         in_pcblocalgroup_last(const struct inpcbinfo *, const struct inpcb *);
 544 void    in_pcbglobalinit(void);
 545 void    in_pcbresetroute(struct inpcb *);
 546
 547 int     in_pcblist_range(SYSCTL_HANDLER_ARGS);
 548 int     in_pcblist_ncpus(SYSCTL_HANDLER_ARGS);
 549
 550 struct inpcb *
 551         in_pcbmarker(int cpuid);
 552 struct inpcontainer *
 553         in_pcbcontainer_marker(int cpuid);
 554
 555 #endif /* _KERNEL */
 556
 557 #endif /* !_NETINET_IN_PCB_H_ */