xref: /illumos-gate/usr/src/uts/common/inet/ip_if.h (revision 6a634c9d)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 1991, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright (c) 1990 Mentat Inc.
24  */
25 
26 #ifndef	_INET_IP_IF_H
27 #define	_INET_IP_IF_H
28 
29 #include <net/route.h>
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 #define	PREFIX_INFINITY	0xffffffffUL
36 
37 #define	IP_LOOPBACK_MTU	(8*1024)
38 
39 #ifdef	_KERNEL
40 /*
41  * Interface flags actually represent the state/properties of 3 different
42  * abstractions of interfaces in IP. Interface flags are set using
43  * SIOCS[L]IFFLAGS ioctl. The three abstractions are :
44  *
45  * 1) Physical interface (phyint) : There is one phyint allocated common
46  *    to both IPv4 and IPv6 physical interface instance.
47  *
48  * 2) Physical interface instance (ill) : This encompasses all the state
49  *    that is common across all IP addresses assigned to a physical
50  *    interface but different between the IPv4 and IPv6 instance.
51  *
52  * 3) Logical interface (ipif) : This has state about a single IP address.
53  *
54  * Values for the various states are derived from the same name space
55  * as applications querying the state using SIOCGIFFLAGS/SIOCGLIFFLAGS
56  * see only one state returned in lifr_flags which is a union of all
57  * the above states/properties. Thus deriving the values from the common
58  * name space makes implementation easier. All these values are stored in
59  * uint64_t and any other structure/code using these flags should use
60  * uint64_ts.
61  *
62  * As we maintain the interface flags in 3 different flags namely
63  * phyint_flags, ill_flags, ipif_flags we define the following flag values
64  * to be used within the kernel to reduce potential errors. The ones
65  * starting with PHYI_ are supposed to be used with phyint_flags, the ones
66  * starting with ILLF_ are supposed to be used with ill_flags and the ones
67  * starting with IPIF_ are supposed to be used with ipif_flags. If you see
68  * any code with a mismatch i.e phyint_flags & IPIF_UP - it is wrong. Only
69  * PHYI_XXX can be used with phyint_flags.
70  *
71  * NOTE : For EVERY FLAG in if.h, there should be a corresponding value
72  * defined HERE and this is the one that should be USED within IP. We
73  * use IFF_ flags within IP only when we examine lifr_flags.
74  */
75 #define	IFF_PHYINT_FLAGS	(IFF_LOOPBACK|IFF_RUNNING|IFF_PROMISC| \
76     IFF_ALLMULTI|IFF_INTELLIGENT|IFF_MULTI_BCAST|IFF_FAILED|IFF_STANDBY| \
77     IFF_INACTIVE|IFF_OFFLINE|IFF_VIRTUAL|IFF_IPMP|IFF_L3PROTECT)
78 
79 #define	IFF_PHYINTINST_FLAGS	(IFF_DEBUG|IFF_NOTRAILERS|IFF_NOARP| \
80     IFF_MULTICAST|IFF_ROUTER|IFF_NONUD|IFF_NORTEXCH|IFF_IPV4|IFF_IPV6| \
81     IFF_COS_ENABLED|IFF_FIXEDMTU|IFF_VRRP|IFF_NOACCEPT|IFF_NOLINKLOCAL)
82 
83 #define	IFF_LOGINT_FLAGS	(IFF_UP|IFF_BROADCAST|IFF_POINTOPOINT| \
84     IFF_UNNUMBERED|IFF_DHCPRUNNING|IFF_PRIVATE|IFF_NOXMIT|IFF_NOLOCAL| \
85     IFF_DEPRECATED|IFF_ADDRCONF|IFF_ANYCAST|IFF_NOFAILOVER| \
86     IFF_PREFERRED|IFF_TEMPORARY|IFF_DUPLICATE)
87 
88 #define	PHYI_LOOPBACK		IFF_LOOPBACK	/* is a loopback net */
89 #define	PHYI_RUNNING		IFF_RUNNING	/* resources allocated */
90 #define	PHYI_PROMISC		IFF_PROMISC	/* receive all packets */
91 #define	PHYI_ALLMULTI		IFF_ALLMULTI	/* receive all multi packets */
92 #define	PHYI_INTELLIGENT	IFF_INTELLIGENT	/* protocol code on board */
93 #define	PHYI_MULTI_BCAST	IFF_MULTI_BCAST	/* multicast using broadcast */
94 #define	PHYI_FAILED		IFF_FAILED	/* NIC has failed */
95 #define	PHYI_STANDBY		IFF_STANDBY	/* Standby NIC  */
96 #define	PHYI_INACTIVE		IFF_INACTIVE	/* Standby active or not ? */
97 #define	PHYI_OFFLINE		IFF_OFFLINE	/* NIC has been offlined */
98 #define	PHYI_VIRTUAL		IFF_VIRTUAL	/* Will not send or recv pkts */
99 #define	PHYI_IPMP		IFF_IPMP	/* IPMP meta-interface */
100 #define	PHYI_L3PROTECT		IFF_L3PROTECT	/* Layer-3 protected */
101 
102 #define	ILLF_DEBUG		IFF_DEBUG	/* turn on debugging */
103 #define	ILLF_NOTRAILERS		IFF_NOTRAILERS	/* avoid use of trailers */
104 #define	ILLF_NOARP		IFF_NOARP	/* no ARP for this interface */
105 #define	ILLF_MULTICAST		IFF_MULTICAST	/* supports multicast */
106 #define	ILLF_ROUTER		IFF_ROUTER	/* router on this interface */
107 #define	ILLF_NONUD		IFF_NONUD	/* No NUD on this interface */
108 #define	ILLF_NORTEXCH		IFF_NORTEXCH	/* No routing info exchange */
109 #define	ILLF_IPV4		IFF_IPV4	/* IPv4 interface */
110 #define	ILLF_IPV6		IFF_IPV6	/* IPv6 interface */
111 #define	ILLF_COS_ENABLED	IFF_COS_ENABLED	/* Is CoS marking supported */
112 #define	ILLF_FIXEDMTU		IFF_FIXEDMTU	/* set with SIOCSLIFMTU */
113 #define	ILLF_VRRP		IFF_VRRP	/* managed by VRRP */
114 #define	ILLF_NOACCEPT		IFF_NOACCEPT	/* accept only ND messagees */
115 #define	ILLF_NOLINKLOCAL	IFF_NOLINKLOCAL	/* No default linklocal */
116 
117 #define	IPIF_UP			IFF_UP		/* interface is up */
118 #define	IPIF_BROADCAST		IFF_BROADCAST	/* broadcast address valid */
119 #define	IPIF_POINTOPOINT	IFF_POINTOPOINT	/* point-to-point link */
120 #define	IPIF_UNNUMBERED		IFF_UNNUMBERED	/* non-unique address */
121 #define	IPIF_DHCPRUNNING	IFF_DHCPRUNNING	/* DHCP controlled interface */
122 #define	IPIF_PRIVATE		IFF_PRIVATE	/* do not advertise */
123 #define	IPIF_NOXMIT		IFF_NOXMIT	/* Do not transmit packets */
124 #define	IPIF_NOLOCAL		IFF_NOLOCAL	/* Just on-link subnet */
125 #define	IPIF_DEPRECATED		IFF_DEPRECATED	/* address deprecated */
126 #define	IPIF_ADDRCONF		IFF_ADDRCONF	/* stateless addrconf */
127 #define	IPIF_ANYCAST		IFF_ANYCAST	/* Anycast address */
128 #define	IPIF_NOFAILOVER		IFF_NOFAILOVER	/* No failover on NIC failure */
129 #define	IPIF_PREFERRED		IFF_PREFERRED	/* Prefer as source address */
130 #define	IPIF_TEMPORARY		IFF_TEMPORARY	/* RFC3041 */
131 #define	IPIF_DUPLICATE		IFF_DUPLICATE	/* address is in use */
132 
133 #ifdef DEBUG
134 #define	ILL_MAC_PERIM_HELD(ill)	ill_mac_perim_held(ill)
135 #else
136 #define	ILL_MAC_PERIM_HELD(ill)
137 #endif
138 
139 /*
140  * match flags for ipif_lookup_addr_common* functions
141  */
142 #define	IPIF_MATCH_ILLGRP	0x00000001
143 #define	IPIF_MATCH_NONDUP	0x00000002
144 
145 /* for ipif_resolver_up */
146 enum ip_resolver_action {
147 	Res_act_initial,		/* initial address establishment */
148 	Res_act_rebind,			/* IPMP address rebind (new hwaddr) */
149 	Res_act_defend,			/* address defense */
150 	Res_act_none			/* do nothing */
151 };
152 
153 extern	int	ill_add_ires(ill_t *);
154 extern	void	ill_delete_ires(ill_t *);
155 extern	void	ill_dlpi_done(ill_t *, t_uscalar_t);
156 extern	boolean_t ill_dlpi_pending(ill_t *, t_uscalar_t);
157 extern	void	ill_dlpi_dispatch(ill_t *, mblk_t *);
158 extern	void	ill_dlpi_send(ill_t *, mblk_t *);
159 extern	void	ill_dlpi_send_deferred(ill_t *);
160 extern	void	ill_dlpi_queue(ill_t *, mblk_t *);
161 extern	void	ill_dlpi_send_queued(ill_t *);
162 extern	void	ill_mcast_queue(ill_t *, mblk_t *);
163 extern	void	ill_mcast_send_queued(ill_t *);
164 extern	void	ill_mcast_timer_start(ip_stack_t *);
165 extern	void	ill_capability_done(ill_t *);
166 
167 extern	mblk_t	*ill_dlur_gen(uchar_t *, uint_t, t_uscalar_t, t_scalar_t);
168 /* NOTE: Keep unmodified ill_lookup_on_ifindex for ipp for now */
169 extern  ill_t	*ill_lookup_on_ifindex_global_instance(uint_t, boolean_t);
170 extern  ill_t	*ill_lookup_on_ifindex(uint_t, boolean_t, ip_stack_t *);
171 extern  ill_t	*ill_lookup_on_ifindex_zoneid(uint_t, zoneid_t, boolean_t,
172     ip_stack_t *);
173 extern	ill_t	*ill_lookup_on_name(char *, boolean_t,
174     boolean_t, boolean_t *, ip_stack_t *);
175 extern boolean_t ip_xmit_ifindex_valid(uint_t, zoneid_t, boolean_t,
176     ip_stack_t *);
177 extern uint_t	ill_get_next_ifindex(uint_t, boolean_t, ip_stack_t *);
178 extern uint_t	ill_get_ifindex_by_name(char *, ip_stack_t *);
179 extern uint_t	ill_get_upper_ifindex(const ill_t *);
180 extern	void	ill_delete(ill_t *);
181 extern	void	ill_delete_tail(ill_t *);
182 extern	int	ill_dl_phys(ill_t *, ipif_t *, mblk_t *, queue_t *);
183 extern	int	ill_dls_info(struct sockaddr_dl *, const ill_t *);
184 extern	void	ill_fastpath_ack(ill_t *, mblk_t *);
185 extern	int	ill_fastpath_probe(ill_t *, mblk_t *);
186 extern	int	ill_forward_set(ill_t *, boolean_t);
187 extern	void	ill_frag_prune(ill_t *, uint_t);
188 extern	void	ill_frag_free_pkts(ill_t *, ipfb_t *, ipf_t *, int);
189 extern	time_t	ill_frag_timeout(ill_t *, time_t);
190 extern	int	ill_init(queue_t *, ill_t *);
191 extern	void	ill_restart_dad(ill_t *, boolean_t);
192 extern	void	ill_setdefaulttoken(ill_t *);
193 extern	void	ill_setdesttoken(ill_t *);
194 extern	void	ill_set_inputfn(ill_t *);
195 extern	void	ill_set_inputfn_all(ip_stack_t *);
196 extern	int	ill_set_phys_addr(ill_t *, mblk_t *);
197 extern	void	ill_set_allowed_ips(ill_t *, mblk_t *);
198 extern	int	ill_replumb(ill_t *, mblk_t *);
199 extern	void	ill_set_ndmp(ill_t *, mblk_t *, uint_t, uint_t);
200 
201 extern	boolean_t ill_is_freeable(ill_t *ill);
202 extern	void	ill_refhold(ill_t *);
203 extern	void	ill_refhold_locked(ill_t *);
204 extern	boolean_t ill_check_and_refhold(ill_t *);
205 extern	void	ill_refrele(ill_t *);
206 extern	boolean_t ill_waiter_inc(ill_t *);
207 extern	void	ill_waiter_dcr(ill_t *);
208 extern	void	ill_trace_ref(ill_t *);
209 extern	void	ill_untrace_ref(ill_t *);
210 extern	void	ill_downi(ire_t *, char *);
211 extern	void	ill_downi_if_clone(ire_t *, char *);
212 extern	boolean_t ill_down_start(queue_t *, mblk_t *);
213 extern	ill_t	*ill_lookup_group_v4(ipaddr_t, zoneid_t,
214     ip_stack_t *, boolean_t *, ipaddr_t *);
215 extern	ill_t	*ill_lookup_group_v6(const in6_addr_t *, zoneid_t,
216     ip_stack_t *, boolean_t *, in6_addr_t *);
217 
218 extern	void	ill_capability_ack(ill_t *, mblk_t *);
219 extern	void	ill_capability_probe(ill_t *);
220 extern	void	ill_capability_reset(ill_t *, boolean_t);
221 extern	void	ill_taskq_dispatch(ip_stack_t *);
222 
223 extern	void	ill_get_name(const ill_t *, char *, int);
224 extern	void	ill_group_cleanup(ill_t *);
225 extern	int	ill_up_ipifs(ill_t *, queue_t *, mblk_t *);
226 extern	void	ip_update_source_selection(ip_stack_t *);
227 extern uint_t	ill_appaddr_cnt(const ill_t *);
228 extern uint_t	ill_ptpaddr_cnt(const ill_t *);
229 extern uint_t   ill_admupaddr_cnt(const ill_t *);
230 
231 extern	ill_t	*ill_lookup_multicast(ip_stack_t *, zoneid_t, boolean_t);
232 extern void	ill_save_ire(ill_t *, ire_t *);
233 extern void	ill_remove_saved_ire(ill_t *, ire_t *);
234 extern int	ill_recover_saved_ire(ill_t *);
235 
236 extern	void	ip_interface_cleanup(ip_stack_t *);
237 extern	void	ipif_get_name(const ipif_t *, char *, int);
238 extern	ipif_t	*ipif_getby_indexes(uint_t, uint_t, boolean_t, ip_stack_t *);
239 extern	void	ipif_init(ip_stack_t *);
240 extern	ipif_t	*ipif_lookup_addr(ipaddr_t, ill_t *, zoneid_t, ip_stack_t *);
241 extern	ipif_t	*ipif_lookup_addr_exact(ipaddr_t, ill_t *, ip_stack_t *);
242 extern	ipif_t	*ipif_lookup_addr_nondup(ipaddr_t, ill_t *, zoneid_t,
243     ip_stack_t *);
244 extern	ipif_t	*ipif_lookup_addr_v6(const in6_addr_t *, ill_t *, zoneid_t,
245     ip_stack_t *);
246 extern	ipif_t	*ipif_lookup_addr_exact_v6(const in6_addr_t *, ill_t *,
247     ip_stack_t *);
248 extern	ipif_t	*ipif_lookup_addr_nondup_v6(const in6_addr_t *, ill_t *,
249     zoneid_t, ip_stack_t *);
250 extern	zoneid_t ipif_lookup_addr_zoneid(ipaddr_t, ill_t *, ip_stack_t *);
251 extern	zoneid_t ipif_lookup_addr_zoneid_v6(const in6_addr_t *, ill_t *,
252     ip_stack_t *);
253 extern  ipif_t	*ipif_lookup_interface(ipaddr_t, ipaddr_t, ip_stack_t *);
254 extern	ipif_t	*ipif_lookup_remote(ill_t *, ipaddr_t, zoneid_t);
255 extern boolean_t ipif_lookup_testaddr_v6(ill_t *, const in6_addr_t *,
256     ipif_t **);
257 extern boolean_t ipif_lookup_testaddr_v4(ill_t *, const in_addr_t *,
258     ipif_t **);
259 extern	ipif_t	*ipif_select_source_v4(ill_t *, ipaddr_t, zoneid_t, boolean_t,
260     boolean_t *);
261 extern	boolean_t ipif_zone_avail(uint_t, boolean_t, zoneid_t, ip_stack_t *);
262 extern	ipif_t	*ipif_good_addr(ill_t *, zoneid_t);
263 extern	int	ip_select_source_v4(ill_t *, ipaddr_t, ipaddr_t, ipaddr_t,
264     zoneid_t, ip_stack_t *, ipaddr_t *, uint32_t *, uint64_t *);
265 extern	void	ipif_refhold(ipif_t *);
266 extern	void	ipif_refhold_locked(ipif_t *);
267 extern	void	ipif_refrele(ipif_t *);
268 extern	void	ipif_all_down_tail(ipsq_t *, queue_t *, mblk_t *, void *);
269 extern	int	ipif_resolver_up(ipif_t *, enum ip_resolver_action);
270 extern	int	ipif_down(ipif_t *, queue_t *, mblk_t *);
271 extern	int	ipif_down_tail(ipif_t *);
272 extern	void	ipif_multicast_down(ipif_t *);
273 extern	void	ipif_multicast_up(ipif_t *);
274 extern	void	ipif_ndp_down(ipif_t *);
275 extern	int	ipif_ndp_up(ipif_t *, boolean_t);
276 extern	int	ipif_up_done(ipif_t *);
277 extern	int	ipif_up_done_v6(ipif_t *);
278 extern	void	ipif_up_notify(ipif_t *);
279 extern	ipif_t	*ipif_select_source_v6(ill_t *, const in6_addr_t *, boolean_t,
280     uint32_t, zoneid_t, boolean_t, boolean_t *);
281 extern	int	ip_select_source_v6(ill_t *, const in6_addr_t *,
282     const in6_addr_t *, zoneid_t, ip_stack_t *, uint_t, uint32_t, in6_addr_t *,
283     uint32_t *, uint64_t *);
284 extern	boolean_t	ipif_cant_setlinklocal(ipif_t *);
285 extern	void	ipif_setlinklocal(ipif_t *);
286 extern	void	ipif_setdestlinklocal(ipif_t *);
287 extern	ipif_t	*ipif_lookup_on_ifindex(uint_t, boolean_t, zoneid_t,
288     ip_stack_t *);
289 extern	ipif_t	*ipif_get_next_ipif(ipif_t *curr, ill_t *ill);
290 extern	void	ipif_ill_refrele_tail(ill_t *ill);
291 extern	void	ipif_nce_down(ipif_t *ipif);
292 extern	int	ipif_arp_down(ipif_t *ipif);
293 extern	void	ipif_mask_reply(ipif_t *);
294 extern	int 	ipif_up(ipif_t *, queue_t *, mblk_t *);
295 extern	ill_t	*ill_lookup_usesrc(ill_t *);
296 
297 extern	void	ipsq_current_start(ipsq_t *, ipif_t *, int);
298 extern	void	ipsq_current_finish(ipsq_t *);
299 extern	void	ipsq_enq(ipsq_t *, queue_t *, mblk_t *, ipsq_func_t, int,
300     ill_t *);
301 extern	boolean_t ipsq_enter(ill_t *, boolean_t, int);
302 extern	ipsq_t	*ipsq_try_enter(ipif_t *, ill_t *, queue_t *, mblk_t *,
303     ipsq_func_t, int, boolean_t);
304 extern	void	ipsq_exit(ipsq_t *);
305 extern	boolean_t ill_mac_perim_held(ill_t *);
306 extern mblk_t	*ipsq_pending_mp_get(ipsq_t *, conn_t **);
307 extern boolean_t ipsq_pending_mp_add(conn_t *, ipif_t *, queue_t *,
308     mblk_t *, int);
309 extern	void	qwriter_ip(ill_t *, queue_t *, mblk_t *, ipsq_func_t, int,
310     boolean_t);
311 
312 typedef	int	ip_extract_func_t(queue_t *, mblk_t *, const ip_ioctl_cmd_t *,
313     cmd_info_t *);
314 
315 extern	ip_extract_func_t ip_extract_arpreq, ip_extract_lifreq;
316 
317 extern	int	ip_addr_availability_check(ipif_t *);
318 extern	void	ip_ll_subnet_defaults(ill_t *, mblk_t *);
319 extern	void	ill_capability_send(ill_t *, mblk_t *);
320 
321 extern	int	ip_rt_add(ipaddr_t, ipaddr_t, ipaddr_t, ipaddr_t, int,
322     ill_t *, ire_t **, boolean_t, struct rtsa_s *, ip_stack_t *, zoneid_t);
323 extern	int	ip_rt_add_v6(const in6_addr_t *, const in6_addr_t *,
324     const in6_addr_t *, const in6_addr_t *, int, ill_t *, ire_t **,
325     struct rtsa_s *, ip_stack_t *, zoneid_t);
326 extern	int	ip_rt_delete(ipaddr_t, ipaddr_t, ipaddr_t, uint_t, int,
327     ill_t *, boolean_t, ip_stack_t *, zoneid_t);
328 extern	int	ip_rt_delete_v6(const in6_addr_t *, const in6_addr_t *,
329     const in6_addr_t *, uint_t, int, ill_t *, ip_stack_t *, zoneid_t);
330 extern int ip_siocdelndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
331     ip_ioctl_cmd_t *, void *);
332 extern int ip_siocqueryndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
333     ip_ioctl_cmd_t *, void *);
334 extern int ip_siocsetndp_v6(ipif_t *, sin_t *, queue_t *, mblk_t *,
335     ip_ioctl_cmd_t *, void *);
336 
337 extern int ip_siocaddrt(ipif_t *, sin_t *, queue_t *, mblk_t *,
338     ip_ioctl_cmd_t *, void *);
339 extern int ip_siocdelrt(ipif_t *, sin_t *, queue_t *, mblk_t *,
340     ip_ioctl_cmd_t *, void *);
341 
342 extern int ip_sioctl_prefix(ipif_t *, sin_t *, queue_t *, mblk_t *,
343     ip_ioctl_cmd_t *, void *);
344 extern int ip_sioctl_prefix_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
345     ip_ioctl_cmd_t *, void *);
346 
347 extern int ip_sioctl_addr(ipif_t *, sin_t *, queue_t *, mblk_t *,
348     ip_ioctl_cmd_t *, void *);
349 extern int ip_sioctl_addr_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
350     ip_ioctl_cmd_t *, void *);
351 extern int ip_sioctl_get_addr(ipif_t *, sin_t *, queue_t *, mblk_t *,
352     ip_ioctl_cmd_t *, void *);
353 
354 extern int ip_sioctl_dstaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
355     ip_ioctl_cmd_t *, void *);
356 extern int ip_sioctl_dstaddr_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
357     ip_ioctl_cmd_t *, void *);
358 extern int ip_sioctl_get_dstaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
359     ip_ioctl_cmd_t *, void *);
360 
361 extern int ip_sioctl_flags(ipif_t *, sin_t *, queue_t *, mblk_t *,
362     ip_ioctl_cmd_t *, void *);
363 extern int ip_sioctl_flags_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
364     ip_ioctl_cmd_t *, void *);
365 extern int ip_sioctl_get_flags(ipif_t *, sin_t *, queue_t *, mblk_t *,
366     ip_ioctl_cmd_t *, void *);
367 
368 extern int ip_sioctl_mtu(ipif_t *, sin_t *, queue_t *, mblk_t *,
369     ip_ioctl_cmd_t *, void *);
370 extern int ip_sioctl_get_mtu(ipif_t *, sin_t *, queue_t *, mblk_t *,
371     ip_ioctl_cmd_t *, void *);
372 
373 extern int ip_sioctl_get_ifconf(ipif_t *, sin_t *, queue_t *, mblk_t *,
374     ip_ioctl_cmd_t *, void *);
375 extern int ip_sioctl_get_lifconf(ipif_t *, sin_t *, queue_t *, mblk_t *,
376     ip_ioctl_cmd_t *, void *);
377 extern int ip_sioctl_get_ifnum(ipif_t *, sin_t *, queue_t *, mblk_t *,
378     ip_ioctl_cmd_t *, void *);
379 extern int ip_sioctl_get_lifnum(ipif_t *, sin_t *, queue_t *, mblk_t *,
380     ip_ioctl_cmd_t *, void *);
381 
382 extern int ip_sioctl_token(ipif_t *, sin_t *, queue_t *, mblk_t *,
383     ip_ioctl_cmd_t *, void *);
384 extern int ip_sioctl_get_token(ipif_t *, sin_t *, queue_t *, mblk_t *,
385     ip_ioctl_cmd_t *, void *);
386 
387 extern int if_unitsel(ipif_t *, sin_t *, queue_t *, mblk_t *,
388     ip_ioctl_cmd_t *, void *);
389 extern int if_unitsel_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
390     ip_ioctl_cmd_t *, void *);
391 
392 extern int ip_sioctl_sifname(ipif_t *, sin_t *, queue_t *, mblk_t *,
393     ip_ioctl_cmd_t *, void *);
394 
395 extern int ip_sioctl_slifname(ipif_t *, sin_t *, queue_t *, mblk_t *,
396     ip_ioctl_cmd_t *, void *);
397 extern int ip_sioctl_slifname_restart(ipif_t *, sin_t *, queue_t *,
398     mblk_t *, ip_ioctl_cmd_t *, void *);
399 
400 extern int ip_sioctl_slifindex(ipif_t *, sin_t *, queue_t *, mblk_t *,
401     ip_ioctl_cmd_t *, void *);
402 extern int ip_sioctl_get_lifindex(ipif_t *, sin_t *, queue_t *, mblk_t *,
403     ip_ioctl_cmd_t *, void *);
404 
405 extern int ip_sioctl_brdaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
406     ip_ioctl_cmd_t *, void *);
407 extern int ip_sioctl_get_brdaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
408     ip_ioctl_cmd_t *, void *);
409 
410 extern int ip_sioctl_get_muxid(ipif_t *, sin_t *, queue_t *, mblk_t *,
411     ip_ioctl_cmd_t *, void *);
412 extern int ip_sioctl_muxid(ipif_t *, sin_t *, queue_t *, mblk_t *,
413     ip_ioctl_cmd_t *, void *);
414 
415 extern int ip_sioctl_netmask(ipif_t *, sin_t *, queue_t *, mblk_t *,
416     ip_ioctl_cmd_t *, void *);
417 extern int ip_sioctl_get_netmask(ipif_t *, sin_t *, queue_t *, mblk_t *,
418     ip_ioctl_cmd_t *, void *);
419 extern int ip_sioctl_netmask_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
420     ip_ioctl_cmd_t *, void *);
421 
422 extern int ip_sioctl_subnet(ipif_t *, sin_t *, queue_t *, mblk_t *,
423     ip_ioctl_cmd_t *, void *);
424 extern int ip_sioctl_subnet_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
425     ip_ioctl_cmd_t *, void *);
426 extern int ip_sioctl_get_subnet(ipif_t *, sin_t *, queue_t *, mblk_t *,
427     ip_ioctl_cmd_t *, void *);
428 
429 extern int ip_sioctl_lnkinfo(ipif_t *, sin_t *, queue_t *, mblk_t *,
430     ip_ioctl_cmd_t *, void *);
431 extern int ip_sioctl_get_lnkinfo(ipif_t *, sin_t *, queue_t *, mblk_t *,
432     ip_ioctl_cmd_t *, void *);
433 
434 extern int ip_sioctl_metric(ipif_t *, sin_t *, queue_t *, mblk_t *,
435     ip_ioctl_cmd_t *, void *);
436 extern int ip_sioctl_get_metric(ipif_t *, sin_t *, queue_t *, mblk_t *,
437     ip_ioctl_cmd_t *, void *);
438 
439 extern int ip_sioctl_arp(ipif_t *, sin_t *, queue_t *, mblk_t *,
440     ip_ioctl_cmd_t *, void *);
441 
442 extern int ip_sioctl_addif(ipif_t *, sin_t *, queue_t *, mblk_t *,
443     ip_ioctl_cmd_t *, void *);
444 extern int ip_sioctl_removeif(ipif_t *, sin_t *, queue_t *, mblk_t *,
445     ip_ioctl_cmd_t *, void *);
446 extern int ip_sioctl_removeif_restart(ipif_t *, sin_t *, queue_t *, mblk_t *,
447     ip_ioctl_cmd_t *, void *);
448 
449 extern int ip_sioctl_tonlink(ipif_t *, sin_t *, queue_t *, mblk_t *,
450     ip_ioctl_cmd_t *, void *);
451 extern int ip_sioctl_tmysite(ipif_t *, sin_t *, queue_t *, mblk_t *,
452     ip_ioctl_cmd_t *, void *);
453 extern int ip_sioctl_tmyaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
454     ip_ioctl_cmd_t *, void *);
455 
456 extern int ip_sioctl_get_binding(ipif_t *, sin_t *, queue_t *,
457     mblk_t *, ip_ioctl_cmd_t *, void *);
458 extern int ip_sioctl_groupname(ipif_t *, sin_t *, queue_t *,
459     mblk_t *, ip_ioctl_cmd_t *, void *);
460 extern int ip_sioctl_get_groupname(ipif_t *, sin_t *, queue_t *,
461     mblk_t *, ip_ioctl_cmd_t *, void *);
462 extern int ip_sioctl_groupinfo(ipif_t *, sin_t *, queue_t *,
463     mblk_t *, ip_ioctl_cmd_t *, void *);
464 
465 extern int ip_sioctl_get_lifzone(ipif_t *, sin_t *, queue_t *,
466     mblk_t *, ip_ioctl_cmd_t *, void *);
467 extern int ip_sioctl_slifzone(ipif_t *, sin_t *, queue_t *,
468     mblk_t *, ip_ioctl_cmd_t *, void *);
469 extern int ip_sioctl_slifzone_restart(ipif_t *, sin_t *, queue_t *,
470     mblk_t *, ip_ioctl_cmd_t *, void *);
471 
472 extern int ip_sioctl_get_lifusesrc(ipif_t *, sin_t *, queue_t *,
473     mblk_t *, ip_ioctl_cmd_t *, void *);
474 extern int ip_sioctl_slifusesrc(ipif_t *, sin_t *, queue_t *,
475     mblk_t *, ip_ioctl_cmd_t *, void *);
476 extern int ip_sioctl_get_lifsrcof(ipif_t *, sin_t *, queue_t *,
477     mblk_t *, ip_ioctl_cmd_t *, void *);
478 
479 extern int ip_sioctl_get_dadstate(ipif_t *, sin_t *, queue_t *, mblk_t *,
480     ip_ioctl_cmd_t *, void *);
481 
482 extern int ip_sioctl_get_ifhwaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
483     ip_ioctl_cmd_t *, void *);
484 extern int ip_sioctl_get_lifhwaddr(ipif_t *, sin_t *, queue_t *, mblk_t *,
485     ip_ioctl_cmd_t *, void *);
486 
487 extern	void	ip_sioctl_copyin_resume(ipsq_t *, queue_t *, mblk_t *, void *);
488 extern	void	ip_sioctl_copyin_setup(queue_t *, mblk_t *);
489 extern	ip_ioctl_cmd_t *ip_sioctl_lookup(int);
490 extern void	ipif_delete_ires_v4(ipif_t *);
491 extern void	ipif_delete_ires_v6(ipif_t *);
492 extern int	ipif_arp_up(ipif_t *, enum ip_resolver_action, boolean_t);
493 extern void	ipif_dup_recovery(void *);
494 extern void	ipif_do_recovery(ipif_t *);
495 
496 /*
497  * Notes on reference tracing on ill, ipif, ire, nce data structures:
498  *
499  * The current model of references on an ipif or ill is purely based on threads
500  * acquiring a reference by doing a lookup on the ill or ipif or by calling a
501  * refhold function on the ill or ipif. In particular any data structure that
502  * points to an ipif or ill does not explicitly contribute to a reference on the
503  * ill or ipif. More details may be seen in the block comment above ipif_down().
504  * Thus in the quiescent state an ill or ipif has a refcnt of zero. Similarly
505  * when a thread exits, there can't be any references on the ipif or ill due to
506  * the exiting thread.
507  *
508  * As a debugging aid, the refhold and refrele functions call into tracing
509  * functions that record the stack trace of the caller and the references
510  * acquired or released by the calling thread, hashed by the structure address
511  * in thread-specific-data (TSD).  On thread exit, ip_thread_exit destroys the
512  * hash, and the destructor for the hash entries (th_trace_free) verifies that
513  * there are no outstanding references to the ipif or ill from the exiting
514  * thread.
515  *
516  * In the case of ires and nces, the model is slightly different. Typically each
517  * ire pointing to an nce contributes to the nce_refcnt. Similarly a conn_t
518  * pointing to an ire also contributes to the ire_refcnt. Excluding the above
519  * special cases, the tracing behavior is similar to the tracing on ipif / ill.
520  * Traces are neither recorded nor verified in the exception cases, and the code
521  * is careful to use the right refhold and refrele functions. On thread exit
522  * ire_thread_exit, nce_thread_exit does the verification that are no
523  * outstanding references on the ire / nce from the exiting thread.
524  *
525  * The reference verification is driven from the TSD destructor which calls
526  * into IP's verification function ip_thread_exit. This debugging aid may be
527  * helpful in tracing missing refrele's on a debug kernel. On a non-debug
528  * kernel, these missing refrele's are noticeable only when an interface is
529  * being unplumbed, and the unplumb hangs, long after the missing refrele. On a
530  * debug kernel, the traces (th_trace_t) which contain the stack backtraces can
531  * be examined on a crash dump to locate the missing refrele.
532  */
533 
534 #endif /* _KERNEL */
535 
536 #ifdef	__cplusplus
537 }
538 #endif
539 
540 #endif	/* _INET_IP_IF_H */
541