xref: /dragonfly/sys/netinet/in_pcb.h (revision 544d23f43f4a40b396d411d5ba2fbe3da17a10d2)
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 
84 /*
85  * Common structure pcb for internet protocol implementation.
86  * Here are stored pointers to local and foreign host table
87  * entries, local and foreign socket numbers, and pointers
88  * up (to a socket structure) and down (to a protocol-specific)
89  * control block.
90  */
91 LIST_HEAD(inpcbhead, inpcb);
92 LIST_HEAD(inpcbporthead, inpcbport);
93 typedef   u_quad_t  inp_gen_t;
94 
95 struct inpcontainer {
96           struct inpcb                            *ic_inp;
97           LIST_ENTRY(inpcontainer)      ic_list;
98 };
99 LIST_HEAD(inpcontainerhead, inpcontainer);
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 union in_dependaddr {
112           struct in_addr_4in6 id46_addr;
113           struct in6_addr     id6_addr;
114 };
115 
116 /*
117  * NOTE: ipv6 addrs should be 64-bit aligned, per RFC 2553.
118  * in_conninfo has some extra padding to accomplish this.
119  */
120 struct in_endpoints {
121           u_int16_t ie_fport;           /* foreign port */
122           u_int16_t ie_lport;           /* local port */
123           /* protocol dependent part, local and foreign addr */
124           union in_dependaddr ie_dependfaddr;     /* foreign host table entry */
125           union in_dependaddr ie_dependladdr;     /* local host table entry */
126 #define   ie_faddr  ie_dependfaddr.id46_addr.ia46_addr4
127 #define   ie_laddr  ie_dependladdr.id46_addr.ia46_addr4
128 #define   ie6_faddr ie_dependfaddr.id6_addr
129 #define   ie6_laddr ie_dependladdr.id6_addr
130 };
131 
132 struct inp_localgroup {
133           LIST_ENTRY(inp_localgroup) il_list;
134           uint16_t  il_lport;
135           u_char              il_af;              /* AF_INET or AF_INET6 */
136           u_char              il_jailed;          /* jailed lport, else not */
137           uint32_t  il_pad2;
138           union in_dependaddr il_dependladdr;
139 #define il_laddr    il_dependladdr.id46_addr.ia46_addr4
140 #define il6_laddr   il_dependladdr.id6_addr
141           int                 il_inpsiz;          /* size of il_inp[] */
142           int                 il_inpcnt;          /* # of elem in il_inp[] */
143           struct inpcb        *il_inp[];
144 };
145 LIST_HEAD(inp_localgrphead, inp_localgroup);
146 
147 /*
148  * XXX
149  * At some point struct route should possibly change to:
150  *   struct rtentry *rt
151  *   struct in_endpoints *ie;
152  */
153 struct in_conninfo {
154           u_int8_t  inc_flags;
155           u_int8_t  inc_len;
156           u_int16_t inc_pad;  /* XXX alignment for in_endpoints */
157           /* protocol dependent part; cached route */
158           struct    in_endpoints inc_ie;
159           union {
160                     /* placeholder for routing entry */
161                     struct    route inc4_route;
162                     struct    route_in6 inc6_route;
163           } inc_dependroute;
164 };
165 #define inc_isipv6  inc_flags /* temp compatibility */
166 #define   inc_fport inc_ie.ie_fport
167 #define   inc_lport inc_ie.ie_lport
168 #define   inc_faddr inc_ie.ie_faddr
169 #define   inc_laddr inc_ie.ie_laddr
170 #define   inc_route inc_dependroute.inc4_route
171 #define   inc6_faddr          inc_ie.ie6_faddr
172 #define   inc6_laddr          inc_ie.ie6_laddr
173 #define   inc6_route          inc_dependroute.inc6_route
174 
175 /*
176  * NB: the zone allocator is type-stable EXCEPT FOR THE FIRST TWO LONGS
177  * of the structure.  Therefore, it is important that the members in
178  * that position not contain any information which is required to be
179  * stable.
180  */
181 struct    icmp6_filter;
182 struct    inpcbportinfo;
183 
184 struct inpcb {
185           LIST_ENTRY(inpcb) inp_hash; /* hash list */
186           LIST_ENTRY(inpcb) inp_list; /* list for all PCBs of this proto */
187           u_int32_t inp_flow;
188           int                 inp_lgrpindex;      /* local group index */
189 
190           /* local and foreign ports, local and foreign addr */
191           struct    in_conninfo inp_inc;
192 
193           void      *inp_ppcb;                    /* pointer to per-protocol pcb */
194           struct    inpcbinfo *inp_pcbinfo;       /* PCB list info */
195           struct    socket *inp_socket; /* back pointer to socket */
196                                                   /* list for this PCB's local port */
197           int                 inp_flags;          /* generic IP/datagram flags */
198           uint16_t  inp_hashval;        /* valid iff INP_HASH */
199           uint16_t  inp_pad;  /* explicit padding */
200 
201           void      *inp_unused1;                 /* was: for IPSEC */
202           u_char    inp_af;                       /* AF_INET or AF_INET6 */
203           u_char    inp_ip_ttl;                   /* time to live proto */
204           u_char    inp_ip_p;           /* protocol proto */
205           u_char    inp_ip_minttl;                /* minimum TTL or drop */
206 
207           /* protocol dependent part; options */
208           struct {
209                     u_char    inp4_ip_tos;                  /* type of service proto */
210                     struct    mbuf *inp4_options; /* IP options */
211                     struct    ip_moptions *inp4_moptions; /* IP multicast options */
212           } inp_depend4;
213 #define inp_fport   inp_inc.inc_fport
214 #define inp_lport   inp_inc.inc_lport
215 #define   inp_faddr inp_inc.inc_faddr
216 #define   inp_laddr inp_inc.inc_laddr
217 #define   inp_route inp_inc.inc_route
218 #define   inp_ip_tos          inp_depend4.inp4_ip_tos
219 #define   inp_options         inp_depend4.inp4_options
220 #define   inp_moptions        inp_depend4.inp4_moptions
221           struct {
222                     /* IP options */
223                     struct    mbuf *inp6_options;
224                     /* IP6 options for outgoing packets */
225                     struct    ip6_pktopts *inp6_outputopts;
226                     /* IP multicast options */
227                     struct    ip6_moptions *inp6_moptions;
228                     /* ICMPv6 code type filter */
229                     struct    icmp6_filter *inp6_icmp6filt;
230                     /* IPV6_CHECKSUM setsockopt */
231                     int       inp6_cksum;
232                     u_short   inp6_ifindex;
233                     short     inp6_hops;
234                     u_int8_t  inp6_hlim;
235           } inp_depend6;
236           LIST_ENTRY(inpcb) inp_portlist;
237           struct    inpcbporthead *inp_porthash;
238           struct    inpcbport *inp_phd; /* head of this list */
239           inp_gen_t inp_gencnt;         /* generation count of this instance */
240 #define   in6p_faddr          inp_inc.inc6_faddr
241 #define   in6p_laddr          inp_inc.inc6_laddr
242 #define   in6p_route          inp_inc.inc6_route
243 #define   in6p_ip6_hlim       inp_depend6.inp6_hlim
244 #define   in6p_hops inp_depend6.inp6_hops         /* default hop limit */
245 #define   in6p_ip6_nxt        inp_ip_p
246 #define   in6p_flowinfo       inp_flow
247 #define   in6p_af             inp_af
248 #define   in6p_options        inp_depend6.inp6_options
249 #define   in6p_outputopts     inp_depend6.inp6_outputopts
250 #define   in6p_moptions       inp_depend6.inp6_moptions
251 #define   in6p_icmp6filt      inp_depend6.inp6_icmp6filt
252 #define   in6p_cksum          inp_depend6.inp6_cksum
253 #define   inp6_ifindex        inp_depend6.inp6_ifindex
254 #define   in6p_flags          inp_flags  /* for KAME src sync over BSD*'s */
255 #define   in6p_socket         inp_socket  /* for KAME src sync over BSD*'s */
256 #define   in6p_lport          inp_lport  /* for KAME src sync over BSD*'s */
257 #define   in6p_fport          inp_fport  /* for KAME src sync over BSD*'s */
258 #define   in6p_ppcb inp_ppcb  /* for KAME src sync over BSD*'s */
259 
260           void      *inp_pf_sk;
261 };
262 /*
263  * The range of the generation count, as used in this implementation,
264  * is 9e19.  We would have to create 300 billion connections per
265  * second for this number to roll over in a year.  This seems sufficiently
266  * unlikely that we simply don't concern ourselves with that possibility.
267  */
268 
269 /*
270  * Interface exported to userland by various protocols which use
271  * inpcbs.  Hack alert -- only define if struct xsocket is in scope.
272  */
273 #ifdef _SYS_SOCKETVAR_H_
274 struct    xinpcb {
275           size_t    xi_len;             /* length of this structure */
276           struct    inpcb xi_inp;
277           struct    xsocket xi_socket;
278           u_quad_t  xi_alignment_hack;
279 };
280 #endif /* _SYS_SOCKETVAR_H_ */
281 
282 struct inpcbport {
283           LIST_ENTRY(inpcbport) phd_hash;
284           struct inpcbhead phd_pcblist;
285           u_short phd_port;
286 };
287 
288 struct lwkt_token;
289 
290 struct inpcbportinfo {
291           struct    inpcbporthead *porthashbase;
292           u_long    porthashcnt;
293           u_short   offset;
294 } __cachealign;
295 
296 struct inpcbinfo {            /* XXX documentation, prefixes */
297           struct    lwkt_token *infotoken;        /* if this inpcbinfo is shared */
298           struct    inpcbhead *hashbase;
299           u_long    hashmask;
300           int       portinfo_cnt;
301           struct    inpcbportinfo *portinfo;
302           struct    inpcbport *portsave;          /* port allocation cache */
303           struct    inpcontainerhead *wildcardhashbase;
304           u_long    wildcardhashmask;
305           struct    inp_localgrphead *localgrphashbase;
306           u_long    localgrphashmask;
307           struct    inpcbhead pcblisthead;        /* head of queue of active pcb's */
308           size_t    ipi_size; /* allocation size for pcbs */
309           u_int     ipi_count;          /* number of pcbs in this list */
310           int       cpu;                /* related protocol thread cpu */
311           u_quad_t ipi_gencnt;          /* current generation count */
312 } __cachealign;
313 
314 
315 #define   INP_PCBCONNHASH(faddr, fport, laddr, lport, mask)           \
316     (((faddr) ^ ((faddr) >> 16) ^ (laddr) ^ ntohs((lport) ^ (fport))) & (mask))
317 
318 #define   INP_PCBPORTHASH(lport, cnt)             (ntohs(lport) % (cnt))
319 
320 #define   INP_PCBWILDCARDHASH(lport, mask)        (ntohs(lport) & (mask))
321 
322 #define   INP_PCBLOCALGRPHASH(lport, mask)        (ntohs(lport) & (mask))
323 
324 /* flags in inp_flags: */
325 #define   INP_RECVOPTS                  0x01      /* receive incoming IP options */
326 #define   INP_RECVRETOPTS               0x02      /* receive IP options for reply */
327 #define   INP_RECVDSTADDR               0x04      /* receive IP dst address */
328 #define   INP_HDRINCL                   0x08      /* user supplies entire IP header */
329 #define   INP_HIGHPORT                  0x10      /* user wants "high" port binding */
330 #define   INP_LOWPORT                   0x20      /* user wants "low" port binding */
331 #define   INP_ANONPORT                  0x40      /* port chosen for user */
332 #define   INP_RECVIF                    0x80      /* receive incoming interface */
333 #define   INP_MTUDISC                   0x100     /* user can do MTU discovery */
334 /* 0x200 unused */
335 #define   INP_WILDCARD                  0x400     /* wildcard match */
336 #define INP_FLAG_PROTO2                 0x800     /* protocol specific */
337 #define   INP_CONNECTED                 0x1000    /* exact match */
338 #define   INP_FLAG_PROTO1               0x2000    /* protocol specific */
339 #define INP_PLACEMARKER                 0x4000    /* skip this pcb, its a placemarker */
340 #define INP_HASH              0x8000    /* inp_hashval is valid */
341 
342 #define   IN6P_PKTINFO                  0x010000 /* receive IP6 dst and I/F */
343 #define   IN6P_HOPLIMIT                 0x020000 /* receive hoplimit */
344 #define   IN6P_HOPOPTS                  0x040000 /* receive hop-by-hop options */
345 #define   IN6P_DSTOPTS                  0x080000 /* receive dst options after rthdr */
346 #define   IN6P_RTHDR                    0x100000 /* receive routing header */
347 #define   IN6P_RTHDRDSTOPTS   0x200000 /* receive dstoptions before rthdr */
348 /* 0x400000 used: IN6P_TCLASS; see below */
349 #define IN6P_AUTOFLOWLABEL    0x800000 /* attach flowlabel automatically */
350 /*
351  * RFC3542 Definition
352  */
353 #define   IN6P_TCLASS                   0x400000 /* receive traffic class value */
354 #define   IN6P_RFC2292                  0x40000000 /* used RFC2292 API on the socket */
355 #define   IN6P_MTU            0x80000000 /* receive path MTU */
356 
357 #define INP_RECVTOS           0x10000000 /* receive incoming IP TOS */
358 #define INP_ONLIST            0x20000000 /* on pcblist */
359 #define   INP_RECVTTL                   0x80000000 /* receive incoming IP TTL */
360 
361 #define   INP_CONTROLOPTS               (INP_RECVOPTS|INP_RECVRETOPTS|INP_RECVDSTADDR|\
362                                          INP_RECVIF|INP_RECVTTL|INP_RECVTOS|\
363                                          IN6P_PKTINFO|IN6P_HOPLIMIT|IN6P_HOPOPTS|\
364                                          IN6P_DSTOPTS|IN6P_RTHDR|IN6P_RTHDRDSTOPTS|\
365                                          IN6P_TCLASS|IN6P_AUTOFLOWLABEL|IN6P_RFC2292|\
366                                          IN6P_MTU)
367 
368 #define   INP_UNMAPPABLEOPTS  (IN6P_HOPOPTS|IN6P_DSTOPTS|IN6P_RTHDR|\
369                                          IN6P_TCLASS|IN6P_AUTOFLOWLABEL)
370 
371  /* for KAME src sync over BSD*'s */
372 #define   IN6P_HIGHPORT                 INP_HIGHPORT
373 #define   IN6P_LOWPORT                  INP_LOWPORT
374 #define   IN6P_ANONPORT                 INP_ANONPORT
375 #define   IN6P_RECVIF                   INP_RECVIF
376 #define   IN6P_MTUDISC                  INP_MTUDISC
377 #define   IN6P_CONTROLOPTS INP_CONTROLOPTS
378           /*
379            * socket AF version is {newer than,or include}
380            * actual datagram AF version
381            */
382 
383 #define   INPLOOKUP_WILDCARD  1
384 #define   sotoinpcb(so)       ((struct inpcb *)(so)->so_pcb)
385 #define   sotoin6pcb(so)      sotoinpcb(so) /* for KAME src sync over BSD*'s */
386 
387 /* macros for handling bitmap of ports not to allocate dynamically */
388 #define   DP_MAPBITS          (sizeof(u_int32_t) * NBBY)
389 #define   DP_MAPSIZE          (howmany(65536, DP_MAPBITS))
390 #define   DP_SET(m, p)        ((m)[(p) / DP_MAPBITS] |= (1 << ((p) % DP_MAPBITS)))
391 #define   DP_CLR(m, p)        ((m)[(p) / DP_MAPBITS] &= ~(1 << ((p) % DP_MAPBITS)))
392 #define   DP_ISSET(m, p)      ((m)[(p) / DP_MAPBITS] & (1 << ((p) % DP_MAPBITS)))
393 
394 /* default values for baddynamicports [see ip_init()] */
395 #define   DEFBADDYNAMICPORTS_TCP        { \
396           587, 749, 750, 751, 871, 2049, \
397           6000, 6001, 6002, 6003, 6004, 6005, 6006, 6007, 6008, 6009, 6010, \
398           0 }
399 #define   DEFBADDYNAMICPORTS_UDP        { 623, 664, 749, 750, 751, 2049, 0 }
400 
401 struct baddynamicports {
402           u_int32_t tcp[DP_MAPSIZE];
403           u_int32_t udp[DP_MAPSIZE];
404 };
405 
406 
407 #define   INP_SOCKAF(so) so->so_proto->pr_domain->dom_family
408 #define   INP_CHECK_SOCKAF(so, af)      (INP_SOCKAF(so) == af)
409 
410 #define INP_ISIPV6(inp)                           ((inp)->inp_af == AF_INET6)
411 #define INP_ISIPV4(inp)                           ((inp)->inp_af == AF_INET)
412 
413 #ifdef _KERNEL
414 
415 static __inline struct inpcbporthead *
in_pcbporthash_head(struct inpcbportinfo * portinfo,u_short lport)416 in_pcbporthash_head(struct inpcbportinfo *portinfo, u_short lport)
417 {
418           return &portinfo->porthashbase[
419               INP_PCBPORTHASH(lport, portinfo->porthashcnt)];
420 }
421 
422 #define GET_PORTHASH_TOKEN(porthashhead) \
423 do { \
424           lwkt_getpooltoken((porthashhead)); \
425 } while (0)
426 
427 #define REL_PORTHASH_TOKEN(porthashhead) \
428 do { \
429           lwkt_relpooltoken((porthashhead)); \
430 } while (0)
431 
432 #ifdef INVARIANTS
433 #define ASSERT_PORTHASH_TOKEN_HELD(pcbhashhead) \
434           ASSERT_LWKT_TOKEN_HELD(lwkt_token_pool_lookup((pcbhashhead)))
435 #else
436 #define ASSERT_PORTHASH_TOKEN_HELD(pcbhashhead)
437 #endif
438 
439 #define GET_PCBINFO_TOKEN(pcbinfo) \
440 do { \
441           if ((pcbinfo)->infotoken) \
442                     lwkt_gettoken((pcbinfo)->infotoken); \
443 } while (0)
444 
445 #define REL_PCBINFO_TOKEN(pcbinfo) \
446 do { \
447           if ((pcbinfo)->infotoken) \
448                     lwkt_reltoken((pcbinfo)->infotoken); \
449 } while (0)
450 
451 #ifdef INVARIANTS
452 #define ASSERT_PCBINFO_TOKEN_HELD(pcbinfo) \
453 do { \
454           if ((pcbinfo)->infotoken) \
455                     ASSERT_LWKT_TOKEN_HELD((pcbinfo)->infotoken); \
456 } while (0)
457 #else     /* !INVARIANTS */
458 #define ASSERT_PCBINFO_TOKEN_HELD(pcbinfo)
459 #endif    /* INVARIANTS */
460 
461 #ifdef INVARIANTS
462 #define ASSERT_INP_NOTINHASH(inp) \
463 do { \
464           KASSERT(!((inp)->inp_flags & INP_CONNECTED), \
465               ("already on connhash")); \
466           KASSERT(!((inp)->inp_flags & INP_WILDCARD), \
467               ("already on wildcardhash")); \
468 } while (0)
469 #else     /* !INVARIANTS */
470 #define ASSERT_INP_NOTINHASH(inp)
471 #endif    /* INVARIANTS */
472 
473 extern int          ipport_lowfirstauto;
474 extern int          ipport_lowlastauto;
475 extern int          ipport_firstauto;
476 extern int          ipport_lastauto;
477 extern int          ipport_hifirstauto;
478 extern int          ipport_hilastauto;
479 
480 union netmsg;
481 struct xinpcb;
482 
483 typedef   void      (*inp_notify_t)(struct inpcb *, int);
484 
485 void      in_pcbportrange(u_short *, u_short *, u_short, u_short);
486 void      in_pcbpurgeif0 (struct inpcbinfo *, struct ifnet *);
487 void      in_losing (struct inpcb *);
488 void      in_rtchange (struct inpcb *, int);
489 void      in_pcbinfo_init (struct inpcbinfo *, int, boolean_t);
490 void      in_pcbportinfo_init (struct inpcbportinfo *, int, u_short);
491 void      in_pcbportinfo_set(struct inpcbinfo *, struct inpcbportinfo *, int);
492 int       in_pcballoc (struct socket *, struct inpcbinfo *);
493 void      in_pcbunlink (struct inpcb *, struct inpcbinfo *);
494 void      in_pcbunlink_flags (struct inpcb *, struct inpcbinfo *, int);
495 void      in_pcblink (struct inpcb *, struct inpcbinfo *);
496 void      in_pcblink_flags (struct inpcb *, struct inpcbinfo *, int);
497 void      in_pcbonlist (struct inpcb *);
498 void      in_pcbofflist (struct inpcb *);
499 int       in_pcbbind (struct inpcb *, struct sockaddr *, struct thread *);
500 int       in_pcbsrcaddr_check(const struct inpcb *, struct sockaddr_in *,
501               struct in_addr *, struct thread *);
502 int       in_pcbbind_remote(struct inpcb *, const struct sockaddr *,
503               struct thread *);
504 int       in_pcbconnect (struct inpcb *, struct sockaddr *, struct thread *);
505 void      in_pcbdetach (struct inpcb *);
506 void      in_pcbdisconnect (struct inpcb *);
507 void      in_pcbinswildcardhash(struct inpcb *inp);
508 void      in_pcbinswildcardhash_oncpu(struct inpcb *, struct inpcbinfo *);
509 void      in_pcbinsconnhash(struct inpcb *inp);
510 void      in_pcbinsporthash(struct inpcbporthead *, struct inpcb *);
511 void      in_pcbinsporthash_lport (struct inpcb *);
512 void      in_pcbremporthash (struct inpcb *);
513 int       in_pcbladdr (struct inpcb *, struct sockaddr *,
514               struct sockaddr_in **, struct thread *);
515 int       in_pcbladdr_find (struct inpcb *, struct sockaddr *,
516               struct sockaddr_in **, struct thread *, int);
517 struct inpcb *
518           in_pcblookup_hash (struct inpcbinfo *,
519                                      struct in_addr, u_int, struct in_addr, u_int,
520                                      boolean_t, struct ifnet *);
521 struct inpcb *
522           in_pcblookup_pkthash (struct inpcbinfo *,
523                                      struct in_addr, u_int, struct in_addr, u_int,
524                                      boolean_t, struct ifnet *, const struct mbuf *);
525 void      in_pcbnotifyall (struct inpcbinfo *, struct in_addr,
526               int, inp_notify_t);
527 int       in_setpeeraddr (struct socket *so, struct sockaddr **nam);
528 void      in_setpeeraddr_dispatch(union netmsg *);
529 void      in_setsockaddr_dispatch(netmsg_t msg);
530 int       in_baddynamic(u_int16_t, u_int16_t);
531 void      in_pcbremwildcardhash(struct inpcb *inp);
532 void      in_pcbremwildcardhash_oncpu(struct inpcb *, struct inpcbinfo *);
533 void      in_pcbremconnhash(struct inpcb *inp);
534 void      in_pcbremlists (struct inpcb *inp);
535 int       prison_xinpcb (struct thread *p, struct inpcb *inp);
536 void      in_savefaddr (struct socket *so, const struct sockaddr *faddr);
537 struct inpcb *
538           in_pcblocalgroup_last(const struct inpcbinfo *, const struct inpcb *);
539 void      in_pcbglobalinit(void);
540 void      in_pcbresetroute(struct inpcb *);
541 
542 int       in_pcblist_range(SYSCTL_HANDLER_ARGS);
543 int       in_pcblist_ncpus(SYSCTL_HANDLER_ARGS);
544 
545 struct inpcb *
546           in_pcbmarker(void);
547 struct inpcontainer *
548           in_pcbcontainer_marker(void);
549 
550 #endif /* _KERNEL */
551 
552 #endif /* !_NETINET_IN_PCB_H_ */
553