xref: /freebsd/sys/netinet/in_var.h (revision 71498f308b2324dbd94e94fd8c4ae41bf4bd663b)
1c398230bSWarner Losh /*-
2df8bae1dSRodney W. Grimes  * Copyright (c) 1985, 1986, 1993
3df8bae1dSRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
4df8bae1dSRodney W. Grimes  *
5df8bae1dSRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
6df8bae1dSRodney W. Grimes  * modification, are permitted provided that the following conditions
7df8bae1dSRodney W. Grimes  * are met:
8df8bae1dSRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
9df8bae1dSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
10df8bae1dSRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
11df8bae1dSRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
12df8bae1dSRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
13df8bae1dSRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
14df8bae1dSRodney W. Grimes  *    may be used to endorse or promote products derived from this software
15df8bae1dSRodney W. Grimes  *    without specific prior written permission.
16df8bae1dSRodney W. Grimes  *
17df8bae1dSRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18df8bae1dSRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19df8bae1dSRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20df8bae1dSRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21df8bae1dSRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22df8bae1dSRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23df8bae1dSRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24df8bae1dSRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25df8bae1dSRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26df8bae1dSRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27df8bae1dSRodney W. Grimes  * SUCH DAMAGE.
28df8bae1dSRodney W. Grimes  *
292180b925SGarrett Wollman  *	@(#)in_var.h	8.2 (Berkeley) 1/9/95
30c3aac50fSPeter Wemm  * $FreeBSD$
31df8bae1dSRodney W. Grimes  */
32df8bae1dSRodney W. Grimes 
33707f139eSPaul Richards #ifndef _NETINET_IN_VAR_H_
34707f139eSPaul Richards #define _NETINET_IN_VAR_H_
35707f139eSPaul Richards 
36ffa5b11aSGarrett Wollman #include <sys/queue.h>
37ca925d9cSJonathan Lemon #include <sys/fnv_hash.h>
38ffa5b11aSGarrett Wollman 
39df8bae1dSRodney W. Grimes /*
40df8bae1dSRodney W. Grimes  * Interface address, Internet version.  One of these structures
41477180fbSGarrett Wollman  * is allocated for each Internet address on an interface.
42df8bae1dSRodney W. Grimes  * The ifaddr structure contains the protocol-independent part
43df8bae1dSRodney W. Grimes  * of the structure and is assumed to be first.
44df8bae1dSRodney W. Grimes  */
45df8bae1dSRodney W. Grimes struct in_ifaddr {
46df8bae1dSRodney W. Grimes 	struct	ifaddr ia_ifa;		/* protocol-independent info */
47df8bae1dSRodney W. Grimes #define	ia_ifp		ia_ifa.ifa_ifp
48df8bae1dSRodney W. Grimes #define ia_flags	ia_ifa.ifa_flags
49df8bae1dSRodney W. Grimes 					/* ia_{,sub}net{,mask} in host order */
50df8bae1dSRodney W. Grimes 	u_long	ia_net;			/* network number of interface */
51df8bae1dSRodney W. Grimes 	u_long	ia_netmask;		/* mask of net part */
52df8bae1dSRodney W. Grimes 	u_long	ia_subnet;		/* subnet number, including net */
53df8bae1dSRodney W. Grimes 	u_long	ia_subnetmask;		/* mask of subnet part */
54df8bae1dSRodney W. Grimes 	struct	in_addr ia_netbroadcast; /* to recognize net broadcasts */
55ca925d9cSJonathan Lemon 	LIST_ENTRY(in_ifaddr) ia_hash;	/* entry in bucket of inet addresses */
56ca925d9cSJonathan Lemon 	TAILQ_ENTRY(in_ifaddr) ia_link;	/* list of internet addresses */
57df8bae1dSRodney W. Grimes 	struct	sockaddr_in ia_addr;	/* reserve space for interface name */
58df8bae1dSRodney W. Grimes 	struct	sockaddr_in ia_dstaddr; /* reserve space for broadcast addr */
59df8bae1dSRodney W. Grimes #define	ia_broadaddr	ia_dstaddr
60df8bae1dSRodney W. Grimes 	struct	sockaddr_in ia_sockmask; /* reserve space for general netmask */
61df8bae1dSRodney W. Grimes };
62df8bae1dSRodney W. Grimes 
63df8bae1dSRodney W. Grimes struct	in_aliasreq {
64df8bae1dSRodney W. Grimes 	char	ifra_name[IFNAMSIZ];		/* if name, e.g. "en0" */
65df8bae1dSRodney W. Grimes 	struct	sockaddr_in ifra_addr;
66df8bae1dSRodney W. Grimes 	struct	sockaddr_in ifra_broadaddr;
67df8bae1dSRodney W. Grimes #define ifra_dstaddr ifra_broadaddr
68df8bae1dSRodney W. Grimes 	struct	sockaddr_in ifra_mask;
69df8bae1dSRodney W. Grimes };
70df8bae1dSRodney W. Grimes /*
71df8bae1dSRodney W. Grimes  * Given a pointer to an in_ifaddr (ifaddr),
72df8bae1dSRodney W. Grimes  * return a pointer to the addr as a sockaddr_in.
73df8bae1dSRodney W. Grimes  */
74df8bae1dSRodney W. Grimes #define IA_SIN(ia)    (&(((struct in_ifaddr *)(ia))->ia_addr))
751bc8a809SSteven Wallace #define IA_DSTSIN(ia) (&(((struct in_ifaddr *)(ia))->ia_dstaddr))
76df8bae1dSRodney W. Grimes 
77df8bae1dSRodney W. Grimes #define IN_LNAOF(in, ifa) \
78df8bae1dSRodney W. Grimes 	((ntohl((in).s_addr) & ~((struct in_ifaddr *)(ifa)->ia_subnetmask))
79df8bae1dSRodney W. Grimes 
80df8bae1dSRodney W. Grimes 
81664a31e4SPeter Wemm #ifdef	_KERNEL
82b5e8ce9fSBruce Evans extern	u_char	inetctlerrmap[];
83df8bae1dSRodney W. Grimes 
84df8bae1dSRodney W. Grimes /*
85ca925d9cSJonathan Lemon  * Hash table for IP addresses.
86ca925d9cSJonathan Lemon  */
87ca925d9cSJonathan Lemon extern	LIST_HEAD(in_ifaddrhashhead, in_ifaddr) *in_ifaddrhashtbl;
88ca925d9cSJonathan Lemon extern	TAILQ_HEAD(in_ifaddrhead, in_ifaddr) in_ifaddrhead;
89ca925d9cSJonathan Lemon extern	u_long in_ifaddrhmask;			/* mask for hash table */
90ca925d9cSJonathan Lemon 
91ca925d9cSJonathan Lemon #define INADDR_NHASH_LOG2       9
92ca925d9cSJonathan Lemon #define INADDR_NHASH		(1 << INADDR_NHASH_LOG2)
93ca925d9cSJonathan Lemon #define INADDR_HASHVAL(x)	fnv_32_buf((&(x)), sizeof(x), FNV1_32_INIT)
94ca925d9cSJonathan Lemon #define INADDR_HASH(x) \
95ca925d9cSJonathan Lemon 	(&in_ifaddrhashtbl[INADDR_HASHVAL(x) & in_ifaddrhmask])
96ca925d9cSJonathan Lemon 
9707ea6709SBruce M Simpson /*
98e2fd806bSBruce M Simpson  * Macro for finding the internet address structure (in_ifaddr)
9907ea6709SBruce M Simpson  * corresponding to one of our IP addresses (in_addr).
10007ea6709SBruce M Simpson  */
10107ea6709SBruce M Simpson #define INADDR_TO_IFADDR(addr, ia) \
10207ea6709SBruce M Simpson 	/* struct in_addr addr; */ \
10307ea6709SBruce M Simpson 	/* struct in_ifaddr *ia; */ \
10407ea6709SBruce M Simpson do { \
10507ea6709SBruce M Simpson \
10607ea6709SBruce M Simpson 	LIST_FOREACH(ia, INADDR_HASH((addr).s_addr), ia_hash) \
10707ea6709SBruce M Simpson 		if (IA_SIN(ia)->sin_addr.s_addr == (addr).s_addr) \
10807ea6709SBruce M Simpson 			break; \
10907ea6709SBruce M Simpson } while (0)
110ca925d9cSJonathan Lemon 
111ca925d9cSJonathan Lemon /*
112df8bae1dSRodney W. Grimes  * Macro for finding the interface (ifnet structure) corresponding to one
113df8bae1dSRodney W. Grimes  * of our IP addresses.
114df8bae1dSRodney W. Grimes  */
115df8bae1dSRodney W. Grimes #define INADDR_TO_IFP(addr, ifp) \
116df8bae1dSRodney W. Grimes 	/* struct in_addr addr; */ \
117df8bae1dSRodney W. Grimes 	/* struct ifnet *ifp; */ \
118df8bae1dSRodney W. Grimes { \
1199f81cc84SRuslan Ermilov 	struct in_ifaddr *ia; \
120df8bae1dSRodney W. Grimes \
12107ea6709SBruce M Simpson 	INADDR_TO_IFADDR(addr, ia); \
122df8bae1dSRodney W. Grimes 	(ifp) = (ia == NULL) ? NULL : ia->ia_ifp; \
123df8bae1dSRodney W. Grimes }
124df8bae1dSRodney W. Grimes 
125df8bae1dSRodney W. Grimes /*
126df8bae1dSRodney W. Grimes  * Macro for finding the internet address structure (in_ifaddr) corresponding
127df8bae1dSRodney W. Grimes  * to a given interface (ifnet structure).
128df8bae1dSRodney W. Grimes  */
129df8bae1dSRodney W. Grimes #define IFP_TO_IA(ifp, ia) \
130df8bae1dSRodney W. Grimes 	/* struct ifnet *ifp; */ \
131df8bae1dSRodney W. Grimes 	/* struct in_ifaddr *ia; */ \
132df8bae1dSRodney W. Grimes { \
133ef9e85abSPoul-Henning Kamp 	for ((ia) = TAILQ_FIRST(&in_ifaddrhead); \
134df8bae1dSRodney W. Grimes 	    (ia) != NULL && (ia)->ia_ifp != (ifp); \
135ef9e85abSPoul-Henning Kamp 	    (ia) = TAILQ_NEXT((ia), ia_link)) \
136df8bae1dSRodney W. Grimes 		continue; \
137df8bae1dSRodney W. Grimes }
138df8bae1dSRodney W. Grimes #endif
139df8bae1dSRodney W. Grimes 
140df8bae1dSRodney W. Grimes /*
141f0068c4aSGarrett Wollman  * This information should be part of the ifnet structure but we don't wish
142f0068c4aSGarrett Wollman  * to change that - as it might break a number of things
143f0068c4aSGarrett Wollman  */
144f0068c4aSGarrett Wollman 
145f0068c4aSGarrett Wollman struct router_info {
14649fa849bSBill Fenner 	struct ifnet *rti_ifp;
14749fa849bSBill Fenner 	int    rti_type; /* type of router which is querier on this interface */
14849fa849bSBill Fenner 	int    rti_time; /* # of slow timeouts since last old query */
1496c4b2ad3SRobert Watson 	SLIST_ENTRY(router_info) rti_list;
15071498f30SBruce M Simpson #ifdef notyet
15171498f30SBruce M Simpson 	int	rti_timev1;	/* IGMPv1 querier present */
15271498f30SBruce M Simpson 	int	rti_timev2;	/* IGMPv2 querier present */
15371498f30SBruce M Simpson 	int	rti_timer;	/* report to general query */
15471498f30SBruce M Simpson 	int	rti_qrv;	/* querier robustness */
15571498f30SBruce M Simpson #endif
156f0068c4aSGarrett Wollman };
157f0068c4aSGarrett Wollman 
158f0068c4aSGarrett Wollman /*
159df8bae1dSRodney W. Grimes  * Internet multicast address structure.  There is one of these for each IP
160df8bae1dSRodney W. Grimes  * multicast group to which this host belongs on a given network interface.
161477180fbSGarrett Wollman  * For every entry on the interface's if_multiaddrs list which represents
162477180fbSGarrett Wollman  * an IP multicast group, there is one of these structures.  They are also
163477180fbSGarrett Wollman  * kept on a system-wide list to make it easier to keep our legacy IGMP code
164477180fbSGarrett Wollman  * compatible with the rest of the world (see IN_FIRST_MULTI et al, below).
165df8bae1dSRodney W. Grimes  */
166df8bae1dSRodney W. Grimes struct in_multi {
167e3975643SJake Burkholder 	LIST_ENTRY(in_multi) inm_link;	/* queue macro glue */
168477180fbSGarrett Wollman 	struct	in_addr inm_addr;	/* IP multicast address, convenience */
169df8bae1dSRodney W. Grimes 	struct	ifnet *inm_ifp;		/* back pointer to ifnet */
170477180fbSGarrett Wollman 	struct	ifmultiaddr *inm_ifma;	/* back pointer to ifmultiaddr */
171df8bae1dSRodney W. Grimes 	u_int	inm_timer;		/* IGMP membership report timer */
172f0068c4aSGarrett Wollman 	u_int	inm_state;		/*  state of the membership */
173f0068c4aSGarrett Wollman 	struct	router_info *inm_rti;	/* router info*/
174ec002feeSBruce M Simpson 	u_int	inm_refcount;		/* reference count */
17571498f30SBruce M Simpson #ifdef notyet		/* IGMPv3 source-specific multicast fields */
17671498f30SBruce M Simpson 	TAILQ_HEAD(, in_msfentry) inm_msf;	/* all active source filters */
17771498f30SBruce M Simpson 	TAILQ_HEAD(, in_msfentry) inm_msf_record;	/* recorded sources */
17871498f30SBruce M Simpson 	TAILQ_HEAD(, in_msfentry) inm_msf_exclude;	/* exclude sources */
17971498f30SBruce M Simpson 	TAILQ_HEAD(, in_msfentry) inm_msf_include;	/* include sources */
18071498f30SBruce M Simpson 	/* XXX: should this lot go to the router_info structure? */
18171498f30SBruce M Simpson 	/* XXX: can/should these be callouts? */
18271498f30SBruce M Simpson 	/* IGMP protocol timers */
18371498f30SBruce M Simpson 	int32_t		inm_ti_curstate;	/* current state timer */
18471498f30SBruce M Simpson 	int32_t		inm_ti_statechg;	/* state change timer */
18571498f30SBruce M Simpson 	/* IGMP report timers */
18671498f30SBruce M Simpson 	uint16_t	inm_rpt_statechg;	/* state change report timer */
18771498f30SBruce M Simpson 	uint16_t	inm_rpt_toxx;		/* fmode change report timer */
18871498f30SBruce M Simpson 	/* IGMP protocol state */
18971498f30SBruce M Simpson 	uint16_t	inm_fmode;		/* filter mode */
19071498f30SBruce M Simpson 	uint32_t	inm_recsrc_count;	/* # of recorded sources */
19171498f30SBruce M Simpson 	uint16_t	inm_exclude_sock_count;	/* # of exclude-mode sockets */
19271498f30SBruce M Simpson 	uint16_t	inm_gass_count;		/* # of g-a-s queries */
19371498f30SBruce M Simpson #endif
194df8bae1dSRodney W. Grimes };
195df8bae1dSRodney W. Grimes 
19671498f30SBruce M Simpson #ifdef notyet
19771498f30SBruce M Simpson /*
19871498f30SBruce M Simpson  * Internet multicast source filter list. This list is used to store
19971498f30SBruce M Simpson  * IP multicast source addresses for each membership on an interface.
20071498f30SBruce M Simpson  * TODO: Allocate these structures using UMA.
20171498f30SBruce M Simpson  * TODO: Find an easier way of linking the struct into two lists at once.
20271498f30SBruce M Simpson  */
20371498f30SBruce M Simpson struct in_msfentry {
20471498f30SBruce M Simpson 	TAILQ_ENTRY(in_msfentry) isf_link;	/* next filter in all-list */
20571498f30SBruce M Simpson 	TAILQ_ENTRY(in_msfentry) isf_next;	/* next filter in queue */
20671498f30SBruce M Simpson 	struct in_addr	isf_addr;	/* the address of this source */
20771498f30SBruce M Simpson 	uint16_t	isf_refcount;	/* reference count */
20871498f30SBruce M Simpson 	uint16_t	isf_reporttag;	/* what to report to the IGMP router */
20971498f30SBruce M Simpson 	uint16_t	isf_rexmit;	/* retransmission state/count */
21071498f30SBruce M Simpson };
21171498f30SBruce M Simpson #endif
21271498f30SBruce M Simpson 
213664a31e4SPeter Wemm #ifdef _KERNEL
214ce02431fSDoug Rabson 
215ce02431fSDoug Rabson #ifdef SYSCTL_DECL
216969bb53eSAndre Oppermann SYSCTL_DECL(_net_inet);
217ce02431fSDoug Rabson SYSCTL_DECL(_net_inet_ip);
218ce02431fSDoug Rabson SYSCTL_DECL(_net_inet_raw);
219ce02431fSDoug Rabson #endif
220ce02431fSDoug Rabson 
221e3975643SJake Burkholder extern LIST_HEAD(in_multihead, in_multi) in_multihead;
222477180fbSGarrett Wollman 
223df8bae1dSRodney W. Grimes /*
224dd5a318bSRobert Watson  * Lock macros for IPv4 layer multicast address lists.  IPv4 lock goes
225dd5a318bSRobert Watson  * before link layer multicast locks in the lock order.  In most cases,
226dd5a318bSRobert Watson  * consumers of IN_*_MULTI() macros should acquire the locks before
227dd5a318bSRobert Watson  * calling them; users of the in_{add,del}multi() functions should not.
228dd5a318bSRobert Watson  */
229dd5a318bSRobert Watson extern struct mtx in_multi_mtx;
230dd5a318bSRobert Watson #define	IN_MULTI_LOCK()		mtx_lock(&in_multi_mtx)
231dd5a318bSRobert Watson #define	IN_MULTI_UNLOCK()	mtx_unlock(&in_multi_mtx)
232dd5a318bSRobert Watson #define	IN_MULTI_LOCK_ASSERT()	mtx_assert(&in_multi_mtx, MA_OWNED)
233dd5a318bSRobert Watson 
234dd5a318bSRobert Watson /*
235df8bae1dSRodney W. Grimes  * Structure used by macros below to remember position when stepping through
236df8bae1dSRodney W. Grimes  * all of the in_multi records.
237df8bae1dSRodney W. Grimes  */
238df8bae1dSRodney W. Grimes struct in_multistep {
239df8bae1dSRodney W. Grimes 	struct in_multi *i_inm;
240df8bae1dSRodney W. Grimes };
241df8bae1dSRodney W. Grimes 
242df8bae1dSRodney W. Grimes /*
243df8bae1dSRodney W. Grimes  * Macro for looking up the in_multi record for a given IP multicast address
244477180fbSGarrett Wollman  * on a given interface.  If no matching record is found, "inm" is set null.
245df8bae1dSRodney W. Grimes  */
246df8bae1dSRodney W. Grimes #define IN_LOOKUP_MULTI(addr, ifp, inm) \
247df8bae1dSRodney W. Grimes 	/* struct in_addr addr; */ \
248df8bae1dSRodney W. Grimes 	/* struct ifnet *ifp; */ \
249df8bae1dSRodney W. Grimes 	/* struct in_multi *inm; */ \
25059562606SGarrett Wollman do { \
2519f81cc84SRuslan Ermilov 	struct ifmultiaddr *ifma; \
252df8bae1dSRodney W. Grimes \
253dd5a318bSRobert Watson 	IN_MULTI_LOCK_ASSERT(); \
254bccb4101SRobert Watson 	IF_ADDR_LOCK(ifp); \
2556817526dSPoul-Henning Kamp 	TAILQ_FOREACH(ifma, &((ifp)->if_multiaddrs), ifma_link) { \
256477180fbSGarrett Wollman 		if (ifma->ifma_addr->sa_family == AF_INET \
25793e808cdSGarrett Wollman 		    && ((struct sockaddr_in *)ifma->ifma_addr)->sin_addr.s_addr == \
258477180fbSGarrett Wollman 		    (addr).s_addr) \
259477180fbSGarrett Wollman 			break; \
260477180fbSGarrett Wollman 	} \
261477180fbSGarrett Wollman 	(inm) = ifma ? ifma->ifma_protospec : 0; \
262bccb4101SRobert Watson 	IF_ADDR_UNLOCK(ifp); \
26359562606SGarrett Wollman } while(0)
264df8bae1dSRodney W. Grimes 
265df8bae1dSRodney W. Grimes /*
266df8bae1dSRodney W. Grimes  * Macro to step through all of the in_multi records, one at a time.
267df8bae1dSRodney W. Grimes  * The current position is remembered in "step", which the caller must
268df8bae1dSRodney W. Grimes  * provide.  IN_FIRST_MULTI(), below, must be called to initialize "step"
269df8bae1dSRodney W. Grimes  * and get the first record.  Both macros return a NULL "inm" when there
270df8bae1dSRodney W. Grimes  * are no remaining records.
271df8bae1dSRodney W. Grimes  */
272df8bae1dSRodney W. Grimes #define IN_NEXT_MULTI(step, inm) \
273df8bae1dSRodney W. Grimes 	/* struct in_multistep  step; */ \
274df8bae1dSRodney W. Grimes 	/* struct in_multi *inm; */ \
27559562606SGarrett Wollman do { \
276dd5a318bSRobert Watson 	IN_MULTI_LOCK_ASSERT(); \
277df8bae1dSRodney W. Grimes 	if (((inm) = (step).i_inm) != NULL) \
278ef9e85abSPoul-Henning Kamp 		(step).i_inm = LIST_NEXT((step).i_inm, inm_link); \
27959562606SGarrett Wollman } while(0)
280df8bae1dSRodney W. Grimes 
281df8bae1dSRodney W. Grimes #define IN_FIRST_MULTI(step, inm) \
282df8bae1dSRodney W. Grimes 	/* struct in_multistep step; */ \
283df8bae1dSRodney W. Grimes 	/* struct in_multi *inm; */ \
28459562606SGarrett Wollman do { \
285dd5a318bSRobert Watson 	IN_MULTI_LOCK_ASSERT(); \
286ef9e85abSPoul-Henning Kamp 	(step).i_inm = LIST_FIRST(&in_multihead); \
287df8bae1dSRodney W. Grimes 	IN_NEXT_MULTI((step), (inm)); \
28859562606SGarrett Wollman } while(0)
289df8bae1dSRodney W. Grimes 
2901f91d8c5SDavid Greenman struct	route;
29171498f30SBruce M Simpson struct	ip_moptions;
29271498f30SBruce M Simpson 
29371498f30SBruce M Simpson size_t	imo_match_group(struct ip_moptions *, struct ifnet *,
29471498f30SBruce M Simpson 	    struct sockaddr *);
29571498f30SBruce M Simpson struct	in_msource *imo_match_source(struct ip_moptions *, size_t,
29671498f30SBruce M Simpson 	    struct sockaddr *);
2974d77a549SAlfred Perlstein struct	in_multi *in_addmulti(struct in_addr *, struct ifnet *);
2984d77a549SAlfred Perlstein void	in_delmulti(struct in_multi *);
299d9668414SBruce M Simpson void	in_delmulti_locked(struct in_multi *);
3004d77a549SAlfred Perlstein int	in_control(struct socket *, u_long, caddr_t, struct ifnet *,
3014d77a549SAlfred Perlstein 	    struct thread *);
3024d77a549SAlfred Perlstein void	in_rtqdrain(void);
3034d77a549SAlfred Perlstein void	ip_input(struct mbuf *);
3044d77a549SAlfred Perlstein int	in_ifadown(struct ifaddr *ifa, int);
3054d77a549SAlfred Perlstein void	in_ifscrub(struct ifnet *, struct in_ifaddr *);
3065d691e6dSAndre Oppermann struct	mbuf	*ip_fastforward(struct mbuf *);
307707f139eSPaul Richards 
308664a31e4SPeter Wemm #endif /* _KERNEL */
3092180b925SGarrett Wollman 
31076429de4SYoshinobu Inoue /* INET6 stuff */
31176429de4SYoshinobu Inoue #include <netinet6/in6_var.h>
31276429de4SYoshinobu Inoue 
3132180b925SGarrett Wollman #endif /* _NETINET_IN_VAR_H_ */
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