xref: /dragonfly/sys/netinet/in_pcb.h (revision 544d23f4)
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