xref: /dragonfly/sys/netinet/in_pcb.h (revision ae24b5e0)
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_mask;
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 int	in_pcballoc (struct socket *, struct inpcbinfo *);
499 void	in_pcbunlink (struct inpcb *, struct inpcbinfo *);
500 void	in_pcbunlink_flags (struct inpcb *, struct inpcbinfo *, int);
501 void	in_pcblink (struct inpcb *, struct inpcbinfo *);
502 void	in_pcblink_flags (struct inpcb *, struct inpcbinfo *, int);
503 void	in_pcbonlist (struct inpcb *);
504 void	in_pcbofflist (struct inpcb *);
505 int	in_pcbbind (struct inpcb *, struct sockaddr *, struct thread *);
506 int	in_pcbbind_remote(struct inpcb *, const struct sockaddr *,
507 	    struct thread *);
508 int	in_pcbconnect (struct inpcb *, struct sockaddr *, struct thread *);
509 void	in_pcbdetach (struct inpcb *);
510 void	in_pcbdisconnect (struct inpcb *);
511 void	in_pcbinswildcardhash(struct inpcb *inp);
512 void	in_pcbinswildcardhash_oncpu(struct inpcb *, struct inpcbinfo *);
513 void	in_pcbinsconnhash(struct inpcb *inp);
514 void	in_pcbinsporthash(struct inpcbporthead *, struct inpcb *);
515 void	in_pcbinsporthash_lport (struct inpcb *);
516 void	in_pcbremporthash (struct inpcb *);
517 int	in_pcbladdr (struct inpcb *, struct sockaddr *,
518 	    struct sockaddr_in **, struct thread *);
519 int	in_pcbladdr_find (struct inpcb *, struct sockaddr *,
520 	    struct sockaddr_in **, struct thread *, int);
521 struct inpcb *
522 	in_pcblookup_hash (struct inpcbinfo *,
523 			       struct in_addr, u_int, struct in_addr, u_int,
524 			       boolean_t, struct ifnet *);
525 struct inpcb *
526 	in_pcblookup_pkthash (struct inpcbinfo *,
527 			       struct in_addr, u_int, struct in_addr, u_int,
528 			       boolean_t, struct ifnet *, const struct mbuf *);
529 void	in_pcbnotifyall (struct inpcbinfo *, struct in_addr,
530 	    int, inp_notify_t);
531 int	in_setpeeraddr (struct socket *so, struct sockaddr **nam);
532 void	in_setpeeraddr_dispatch(union netmsg *);
533 void	in_setsockaddr_dispatch(netmsg_t msg);
534 int	in_baddynamic(u_int16_t, u_int16_t);
535 void	in_pcbremwildcardhash(struct inpcb *inp);
536 void	in_pcbremwildcardhash_oncpu(struct inpcb *, struct inpcbinfo *);
537 void	in_pcbremconnhash(struct inpcb *inp);
538 void	in_pcbremlists (struct inpcb *inp);
539 int	prison_xinpcb (struct thread *p, struct inpcb *inp);
540 void	in_savefaddr (struct socket *so, const struct sockaddr *faddr);
541 struct inpcb *
542 	in_pcblocalgroup_last(const struct inpcbinfo *, const struct inpcb *);
543 void	in_pcbglobalinit(void);
544 void	in_pcbresetroute(struct inpcb *);
545 
546 int	in_pcblist_global(SYSCTL_HANDLER_ARGS);
547 int	in_pcblist_global_ncpus2(SYSCTL_HANDLER_ARGS);
548 
549 struct inpcb *
550 	in_pcbmarker(int cpuid);
551 struct inpcontainer *
552 	in_pcbcontainer_marker(int cpuid);
553 
554 #endif /* _KERNEL */
555 
556 #endif /* !_NETINET_IN_PCB_H_ */
557