1/*-
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $KAME: nd6.h,v 1.76 2001/12/18 02:10:31 itojun Exp $
| 1/*-
2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $KAME: nd6.h,v 1.76 2001/12/18 02:10:31 itojun Exp $
|
30 * $FreeBSD: head/sys/netinet6/nd6.h 197138 2009-09-12 22:08:20Z hrs $
| 30 * $FreeBSD: head/sys/netinet6/nd6.h 207369 2010-04-29 11:52:42Z bz $
|
31 */
32
33#ifndef _NETINET6_ND6_H_
34#define _NETINET6_ND6_H_
35
36/* see net/route.h, or net/if_inarp.h */
37#ifndef RTF_ANNOUNCE
38#define RTF_ANNOUNCE RTF_PROTO2
39#endif
40
41#include <sys/queue.h>
42#include <sys/callout.h>
43
44struct llentry;
45
46#define ND6_LLINFO_NOSTATE -2
47/*
48 * We don't need the WAITDELETE state any more, but we keep the definition
49 * in a comment line instead of removing it. This is necessary to avoid
50 * unintentionally reusing the value for another purpose, which might
51 * affect backward compatibility with old applications.
52 * (20000711 jinmei@kame.net)
53 */
54/* #define ND6_LLINFO_WAITDELETE -1 */
55#define ND6_LLINFO_INCOMPLETE 0
56#define ND6_LLINFO_REACHABLE 1
57#define ND6_LLINFO_STALE 2
58#define ND6_LLINFO_DELAY 3
59#define ND6_LLINFO_PROBE 4
60
61#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
62#define ND6_LLINFO_PERMANENT(n) (((n)->la_expire == 0) && ((n)->ln_state > ND6_LLINFO_INCOMPLETE))
63
64struct nd_ifinfo {
65 u_int32_t linkmtu; /* LinkMTU */
66 u_int32_t maxmtu; /* Upper bound of LinkMTU */
67 u_int32_t basereachable; /* BaseReachableTime */
68 u_int32_t reachable; /* Reachable Time */
69 u_int32_t retrans; /* Retrans Timer */
70 u_int32_t flags; /* Flags */
71 int recalctm; /* BaseReacable re-calculation timer */
72 u_int8_t chlim; /* CurHopLimit */
73 u_int8_t initialized; /* Flag to see the entry is initialized */
74 /* the following 3 members are for privacy extension for addrconf */
75 u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
76 u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
77 u_int8_t randomid[8]; /* current random ID */
78};
79
80#define ND6_IFF_PERFORMNUD 0x1
81#define ND6_IFF_ACCEPT_RTADV 0x2
82#define ND6_IFF_PREFER_SOURCE 0x4 /* XXX: not related to ND. */
83#define ND6_IFF_IFDISABLED 0x8 /* IPv6 operation is disabled due to
84 * DAD failure. (XXX: not ND-specific)
85 */
86#define ND6_IFF_DONT_SET_IFROUTE 0x10
87#define ND6_IFF_AUTO_LINKLOCAL 0x20
88
89#define ND6_CREATE LLE_CREATE
90#define ND6_EXCLUSIVE LLE_EXCLUSIVE
91
92#ifdef _KERNEL
93#define ND_IFINFO(ifp) \
94 (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->nd_ifinfo)
95#define IN6_LINKMTU(ifp) \
96 ((ND_IFINFO(ifp)->linkmtu && ND_IFINFO(ifp)->linkmtu < (ifp)->if_mtu) \
97 ? ND_IFINFO(ifp)->linkmtu \
98 : ((ND_IFINFO(ifp)->maxmtu && ND_IFINFO(ifp)->maxmtu < (ifp)->if_mtu) \
99 ? ND_IFINFO(ifp)->maxmtu : (ifp)->if_mtu))
100#endif
101
102struct in6_nbrinfo {
103 char ifname[IFNAMSIZ]; /* if name, e.g. "en0" */
104 struct in6_addr addr; /* IPv6 address of the neighbor */
105 long asked; /* number of queries already sent for this addr */
106 int isrouter; /* if it acts as a router */
107 int state; /* reachability state */
108 int expire; /* lifetime for NDP state transition */
109};
110
111#define DRLSTSIZ 10
112#define PRLSTSIZ 10
113struct in6_drlist {
114 char ifname[IFNAMSIZ];
115 struct {
116 struct in6_addr rtaddr;
117 u_char flags;
118 u_short rtlifetime;
119 u_long expire;
120 u_short if_index;
121 } defrouter[DRLSTSIZ];
122};
123
124struct in6_defrouter {
125 struct sockaddr_in6 rtaddr;
126 u_char flags;
127 u_short rtlifetime;
128 u_long expire;
129 u_short if_index;
130};
131
132#ifdef _KERNEL
133struct in6_oprlist {
134 char ifname[IFNAMSIZ];
135 struct {
136 struct in6_addr prefix;
137 struct prf_ra raflags;
138 u_char prefixlen;
139 u_char origin;
140 u_long vltime;
141 u_long pltime;
142 u_long expire;
143 u_short if_index;
144 u_short advrtrs; /* number of advertisement routers */
145 struct in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
146 } prefix[PRLSTSIZ];
147};
148#endif
149
150struct in6_prlist {
151 char ifname[IFNAMSIZ];
152 struct {
153 struct in6_addr prefix;
154 struct prf_ra raflags;
155 u_char prefixlen;
156 u_char origin;
157 u_int32_t vltime;
158 u_int32_t pltime;
159 time_t expire;
160 u_short if_index;
161 u_short advrtrs; /* number of advertisement routers */
162 struct in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
163 } prefix[PRLSTSIZ];
164};
165
166struct in6_prefix {
167 struct sockaddr_in6 prefix;
168 struct prf_ra raflags;
169 u_char prefixlen;
170 u_char origin;
171 u_int32_t vltime;
172 u_int32_t pltime;
173 time_t expire;
174 u_int32_t flags;
175 int refcnt;
176 u_short if_index;
177 u_short advrtrs; /* number of advertisement routers */
178 /* struct sockaddr_in6 advrtr[] */
179};
180
181#ifdef _KERNEL
182struct in6_ondireq {
183 char ifname[IFNAMSIZ];
184 struct {
185 u_int32_t linkmtu; /* LinkMTU */
186 u_int32_t maxmtu; /* Upper bound of LinkMTU */
187 u_int32_t basereachable; /* BaseReachableTime */
188 u_int32_t reachable; /* Reachable Time */
189 u_int32_t retrans; /* Retrans Timer */
190 u_int32_t flags; /* Flags */
191 int recalctm; /* BaseReacable re-calculation timer */
192 u_int8_t chlim; /* CurHopLimit */
193 u_int8_t receivedra;
194 } ndi;
195};
196#endif
197
198struct in6_ndireq {
199 char ifname[IFNAMSIZ];
200 struct nd_ifinfo ndi;
201};
202
203struct in6_ndifreq {
204 char ifname[IFNAMSIZ];
205 u_long ifindex;
206};
207
208/* Prefix status */
209#define NDPRF_ONLINK 0x1
210#define NDPRF_DETACHED 0x2
211
212/* protocol constants */
213#define MAX_RTR_SOLICITATION_DELAY 1 /* 1sec */
214#define RTR_SOLICITATION_INTERVAL 4 /* 4sec */
215#define MAX_RTR_SOLICITATIONS 3
216
217#define ND6_INFINITE_LIFETIME 0xffffffff
218
219#ifdef _KERNEL
220/* node constants */
221#define MAX_REACHABLE_TIME 3600000 /* msec */
222#define REACHABLE_TIME 30000 /* msec */
223#define RETRANS_TIMER 1000 /* msec */
224#define MIN_RANDOM_FACTOR 512 /* 1024 * 0.5 */
225#define MAX_RANDOM_FACTOR 1536 /* 1024 * 1.5 */
226#define DEF_TEMP_VALID_LIFETIME 604800 /* 1 week */
227#define DEF_TEMP_PREFERRED_LIFETIME 86400 /* 1 day */
228#define TEMPADDR_REGEN_ADVANCE 5 /* sec */
229#define MAX_TEMP_DESYNC_FACTOR 600 /* 10 min */
230#define ND_COMPUTE_RTIME(x) \
231 (((MIN_RANDOM_FACTOR * (x >> 10)) + (arc4random() & \
232 ((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
233
234TAILQ_HEAD(nd_drhead, nd_defrouter);
235struct nd_defrouter {
236 TAILQ_ENTRY(nd_defrouter) dr_entry;
237 struct in6_addr rtaddr;
238 u_char flags; /* flags on RA message */
239 u_short rtlifetime;
240 u_long expire;
241 struct ifnet *ifp;
242 int installed; /* is installed into kernel routing table */
243};
244
245struct nd_prefixctl {
246 struct ifnet *ndpr_ifp;
247
248 /* prefix */
249 struct sockaddr_in6 ndpr_prefix;
250 u_char ndpr_plen;
251
252 u_int32_t ndpr_vltime; /* advertised valid lifetime */
253 u_int32_t ndpr_pltime; /* advertised preferred lifetime */
254
255 struct prf_ra ndpr_flags;
256};
257
258
259struct nd_prefix {
260 struct ifnet *ndpr_ifp;
261 LIST_ENTRY(nd_prefix) ndpr_entry;
262 struct sockaddr_in6 ndpr_prefix; /* prefix */
263 struct in6_addr ndpr_mask; /* netmask derived from the prefix */
264
265 u_int32_t ndpr_vltime; /* advertised valid lifetime */
266 u_int32_t ndpr_pltime; /* advertised preferred lifetime */
267
268 time_t ndpr_expire; /* expiration time of the prefix */
269 time_t ndpr_preferred; /* preferred time of the prefix */
270 time_t ndpr_lastupdate; /* reception time of last advertisement */
271
272 struct prf_ra ndpr_flags;
273 u_int32_t ndpr_stateflags; /* actual state flags */
274 /* list of routers that advertise the prefix: */
275 LIST_HEAD(pr_rtrhead, nd_pfxrouter) ndpr_advrtrs;
276 u_char ndpr_plen;
277 int ndpr_refcnt; /* reference couter from addresses */
278};
279
280#define ndpr_next ndpr_entry.le_next
281
282#define ndpr_raf ndpr_flags
283#define ndpr_raf_onlink ndpr_flags.onlink
284#define ndpr_raf_auto ndpr_flags.autonomous
285#define ndpr_raf_router ndpr_flags.router
286
287/*
288 * Message format for use in obtaining information about prefixes
289 * from inet6 sysctl function
290 */
291struct inet6_ndpr_msghdr {
292 u_short inpm_msglen; /* to skip over non-understood messages */
293 u_char inpm_version; /* future binary compatibility */
294 u_char inpm_type; /* message type */
295 struct in6_addr inpm_prefix;
296 u_long prm_vltim;
297 u_long prm_pltime;
298 u_long prm_expire;
299 u_long prm_preferred;
300 struct in6_prflags prm_flags;
301 u_short prm_index; /* index for associated ifp */
302 u_char prm_plen; /* length of prefix in bits */
303};
304
305#define prm_raf_onlink prm_flags.prf_ra.onlink
306#define prm_raf_auto prm_flags.prf_ra.autonomous
307
308#define prm_statef_onlink prm_flags.prf_state.onlink
309
310#define prm_rrf_decrvalid prm_flags.prf_rr.decrvalid
311#define prm_rrf_decrprefd prm_flags.prf_rr.decrprefd
312
313struct nd_pfxrouter {
314 LIST_ENTRY(nd_pfxrouter) pfr_entry;
315#define pfr_next pfr_entry.le_next
316 struct nd_defrouter *router;
317};
318
319LIST_HEAD(nd_prhead, nd_prefix);
320
321/* nd6.c */
322VNET_DECLARE(int, nd6_prune);
323VNET_DECLARE(int, nd6_delay);
324VNET_DECLARE(int, nd6_umaxtries);
325VNET_DECLARE(int, nd6_mmaxtries);
326VNET_DECLARE(int, nd6_useloopback);
327VNET_DECLARE(int, nd6_maxnudhint);
328VNET_DECLARE(int, nd6_gctimer);
329VNET_DECLARE(struct nd_drhead, nd_defrouter);
330VNET_DECLARE(struct nd_prhead, nd_prefix);
331VNET_DECLARE(int, nd6_debug);
332VNET_DECLARE(int, nd6_onlink_ns_rfc4861);
| 31 */
32
33#ifndef _NETINET6_ND6_H_
34#define _NETINET6_ND6_H_
35
36/* see net/route.h, or net/if_inarp.h */
37#ifndef RTF_ANNOUNCE
38#define RTF_ANNOUNCE RTF_PROTO2
39#endif
40
41#include <sys/queue.h>
42#include <sys/callout.h>
43
44struct llentry;
45
46#define ND6_LLINFO_NOSTATE -2
47/*
48 * We don't need the WAITDELETE state any more, but we keep the definition
49 * in a comment line instead of removing it. This is necessary to avoid
50 * unintentionally reusing the value for another purpose, which might
51 * affect backward compatibility with old applications.
52 * (20000711 jinmei@kame.net)
53 */
54/* #define ND6_LLINFO_WAITDELETE -1 */
55#define ND6_LLINFO_INCOMPLETE 0
56#define ND6_LLINFO_REACHABLE 1
57#define ND6_LLINFO_STALE 2
58#define ND6_LLINFO_DELAY 3
59#define ND6_LLINFO_PROBE 4
60
61#define ND6_IS_LLINFO_PROBREACH(n) ((n)->ln_state > ND6_LLINFO_INCOMPLETE)
62#define ND6_LLINFO_PERMANENT(n) (((n)->la_expire == 0) && ((n)->ln_state > ND6_LLINFO_INCOMPLETE))
63
64struct nd_ifinfo {
65 u_int32_t linkmtu; /* LinkMTU */
66 u_int32_t maxmtu; /* Upper bound of LinkMTU */
67 u_int32_t basereachable; /* BaseReachableTime */
68 u_int32_t reachable; /* Reachable Time */
69 u_int32_t retrans; /* Retrans Timer */
70 u_int32_t flags; /* Flags */
71 int recalctm; /* BaseReacable re-calculation timer */
72 u_int8_t chlim; /* CurHopLimit */
73 u_int8_t initialized; /* Flag to see the entry is initialized */
74 /* the following 3 members are for privacy extension for addrconf */
75 u_int8_t randomseed0[8]; /* upper 64 bits of MD5 digest */
76 u_int8_t randomseed1[8]; /* lower 64 bits (usually the EUI64 IFID) */
77 u_int8_t randomid[8]; /* current random ID */
78};
79
80#define ND6_IFF_PERFORMNUD 0x1
81#define ND6_IFF_ACCEPT_RTADV 0x2
82#define ND6_IFF_PREFER_SOURCE 0x4 /* XXX: not related to ND. */
83#define ND6_IFF_IFDISABLED 0x8 /* IPv6 operation is disabled due to
84 * DAD failure. (XXX: not ND-specific)
85 */
86#define ND6_IFF_DONT_SET_IFROUTE 0x10
87#define ND6_IFF_AUTO_LINKLOCAL 0x20
88
89#define ND6_CREATE LLE_CREATE
90#define ND6_EXCLUSIVE LLE_EXCLUSIVE
91
92#ifdef _KERNEL
93#define ND_IFINFO(ifp) \
94 (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->nd_ifinfo)
95#define IN6_LINKMTU(ifp) \
96 ((ND_IFINFO(ifp)->linkmtu && ND_IFINFO(ifp)->linkmtu < (ifp)->if_mtu) \
97 ? ND_IFINFO(ifp)->linkmtu \
98 : ((ND_IFINFO(ifp)->maxmtu && ND_IFINFO(ifp)->maxmtu < (ifp)->if_mtu) \
99 ? ND_IFINFO(ifp)->maxmtu : (ifp)->if_mtu))
100#endif
101
102struct in6_nbrinfo {
103 char ifname[IFNAMSIZ]; /* if name, e.g. "en0" */
104 struct in6_addr addr; /* IPv6 address of the neighbor */
105 long asked; /* number of queries already sent for this addr */
106 int isrouter; /* if it acts as a router */
107 int state; /* reachability state */
108 int expire; /* lifetime for NDP state transition */
109};
110
111#define DRLSTSIZ 10
112#define PRLSTSIZ 10
113struct in6_drlist {
114 char ifname[IFNAMSIZ];
115 struct {
116 struct in6_addr rtaddr;
117 u_char flags;
118 u_short rtlifetime;
119 u_long expire;
120 u_short if_index;
121 } defrouter[DRLSTSIZ];
122};
123
124struct in6_defrouter {
125 struct sockaddr_in6 rtaddr;
126 u_char flags;
127 u_short rtlifetime;
128 u_long expire;
129 u_short if_index;
130};
131
132#ifdef _KERNEL
133struct in6_oprlist {
134 char ifname[IFNAMSIZ];
135 struct {
136 struct in6_addr prefix;
137 struct prf_ra raflags;
138 u_char prefixlen;
139 u_char origin;
140 u_long vltime;
141 u_long pltime;
142 u_long expire;
143 u_short if_index;
144 u_short advrtrs; /* number of advertisement routers */
145 struct in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
146 } prefix[PRLSTSIZ];
147};
148#endif
149
150struct in6_prlist {
151 char ifname[IFNAMSIZ];
152 struct {
153 struct in6_addr prefix;
154 struct prf_ra raflags;
155 u_char prefixlen;
156 u_char origin;
157 u_int32_t vltime;
158 u_int32_t pltime;
159 time_t expire;
160 u_short if_index;
161 u_short advrtrs; /* number of advertisement routers */
162 struct in6_addr advrtr[DRLSTSIZ]; /* XXX: explicit limit */
163 } prefix[PRLSTSIZ];
164};
165
166struct in6_prefix {
167 struct sockaddr_in6 prefix;
168 struct prf_ra raflags;
169 u_char prefixlen;
170 u_char origin;
171 u_int32_t vltime;
172 u_int32_t pltime;
173 time_t expire;
174 u_int32_t flags;
175 int refcnt;
176 u_short if_index;
177 u_short advrtrs; /* number of advertisement routers */
178 /* struct sockaddr_in6 advrtr[] */
179};
180
181#ifdef _KERNEL
182struct in6_ondireq {
183 char ifname[IFNAMSIZ];
184 struct {
185 u_int32_t linkmtu; /* LinkMTU */
186 u_int32_t maxmtu; /* Upper bound of LinkMTU */
187 u_int32_t basereachable; /* BaseReachableTime */
188 u_int32_t reachable; /* Reachable Time */
189 u_int32_t retrans; /* Retrans Timer */
190 u_int32_t flags; /* Flags */
191 int recalctm; /* BaseReacable re-calculation timer */
192 u_int8_t chlim; /* CurHopLimit */
193 u_int8_t receivedra;
194 } ndi;
195};
196#endif
197
198struct in6_ndireq {
199 char ifname[IFNAMSIZ];
200 struct nd_ifinfo ndi;
201};
202
203struct in6_ndifreq {
204 char ifname[IFNAMSIZ];
205 u_long ifindex;
206};
207
208/* Prefix status */
209#define NDPRF_ONLINK 0x1
210#define NDPRF_DETACHED 0x2
211
212/* protocol constants */
213#define MAX_RTR_SOLICITATION_DELAY 1 /* 1sec */
214#define RTR_SOLICITATION_INTERVAL 4 /* 4sec */
215#define MAX_RTR_SOLICITATIONS 3
216
217#define ND6_INFINITE_LIFETIME 0xffffffff
218
219#ifdef _KERNEL
220/* node constants */
221#define MAX_REACHABLE_TIME 3600000 /* msec */
222#define REACHABLE_TIME 30000 /* msec */
223#define RETRANS_TIMER 1000 /* msec */
224#define MIN_RANDOM_FACTOR 512 /* 1024 * 0.5 */
225#define MAX_RANDOM_FACTOR 1536 /* 1024 * 1.5 */
226#define DEF_TEMP_VALID_LIFETIME 604800 /* 1 week */
227#define DEF_TEMP_PREFERRED_LIFETIME 86400 /* 1 day */
228#define TEMPADDR_REGEN_ADVANCE 5 /* sec */
229#define MAX_TEMP_DESYNC_FACTOR 600 /* 10 min */
230#define ND_COMPUTE_RTIME(x) \
231 (((MIN_RANDOM_FACTOR * (x >> 10)) + (arc4random() & \
232 ((MAX_RANDOM_FACTOR - MIN_RANDOM_FACTOR) * (x >> 10)))) /1000)
233
234TAILQ_HEAD(nd_drhead, nd_defrouter);
235struct nd_defrouter {
236 TAILQ_ENTRY(nd_defrouter) dr_entry;
237 struct in6_addr rtaddr;
238 u_char flags; /* flags on RA message */
239 u_short rtlifetime;
240 u_long expire;
241 struct ifnet *ifp;
242 int installed; /* is installed into kernel routing table */
243};
244
245struct nd_prefixctl {
246 struct ifnet *ndpr_ifp;
247
248 /* prefix */
249 struct sockaddr_in6 ndpr_prefix;
250 u_char ndpr_plen;
251
252 u_int32_t ndpr_vltime; /* advertised valid lifetime */
253 u_int32_t ndpr_pltime; /* advertised preferred lifetime */
254
255 struct prf_ra ndpr_flags;
256};
257
258
259struct nd_prefix {
260 struct ifnet *ndpr_ifp;
261 LIST_ENTRY(nd_prefix) ndpr_entry;
262 struct sockaddr_in6 ndpr_prefix; /* prefix */
263 struct in6_addr ndpr_mask; /* netmask derived from the prefix */
264
265 u_int32_t ndpr_vltime; /* advertised valid lifetime */
266 u_int32_t ndpr_pltime; /* advertised preferred lifetime */
267
268 time_t ndpr_expire; /* expiration time of the prefix */
269 time_t ndpr_preferred; /* preferred time of the prefix */
270 time_t ndpr_lastupdate; /* reception time of last advertisement */
271
272 struct prf_ra ndpr_flags;
273 u_int32_t ndpr_stateflags; /* actual state flags */
274 /* list of routers that advertise the prefix: */
275 LIST_HEAD(pr_rtrhead, nd_pfxrouter) ndpr_advrtrs;
276 u_char ndpr_plen;
277 int ndpr_refcnt; /* reference couter from addresses */
278};
279
280#define ndpr_next ndpr_entry.le_next
281
282#define ndpr_raf ndpr_flags
283#define ndpr_raf_onlink ndpr_flags.onlink
284#define ndpr_raf_auto ndpr_flags.autonomous
285#define ndpr_raf_router ndpr_flags.router
286
287/*
288 * Message format for use in obtaining information about prefixes
289 * from inet6 sysctl function
290 */
291struct inet6_ndpr_msghdr {
292 u_short inpm_msglen; /* to skip over non-understood messages */
293 u_char inpm_version; /* future binary compatibility */
294 u_char inpm_type; /* message type */
295 struct in6_addr inpm_prefix;
296 u_long prm_vltim;
297 u_long prm_pltime;
298 u_long prm_expire;
299 u_long prm_preferred;
300 struct in6_prflags prm_flags;
301 u_short prm_index; /* index for associated ifp */
302 u_char prm_plen; /* length of prefix in bits */
303};
304
305#define prm_raf_onlink prm_flags.prf_ra.onlink
306#define prm_raf_auto prm_flags.prf_ra.autonomous
307
308#define prm_statef_onlink prm_flags.prf_state.onlink
309
310#define prm_rrf_decrvalid prm_flags.prf_rr.decrvalid
311#define prm_rrf_decrprefd prm_flags.prf_rr.decrprefd
312
313struct nd_pfxrouter {
314 LIST_ENTRY(nd_pfxrouter) pfr_entry;
315#define pfr_next pfr_entry.le_next
316 struct nd_defrouter *router;
317};
318
319LIST_HEAD(nd_prhead, nd_prefix);
320
321/* nd6.c */
322VNET_DECLARE(int, nd6_prune);
323VNET_DECLARE(int, nd6_delay);
324VNET_DECLARE(int, nd6_umaxtries);
325VNET_DECLARE(int, nd6_mmaxtries);
326VNET_DECLARE(int, nd6_useloopback);
327VNET_DECLARE(int, nd6_maxnudhint);
328VNET_DECLARE(int, nd6_gctimer);
329VNET_DECLARE(struct nd_drhead, nd_defrouter);
330VNET_DECLARE(struct nd_prhead, nd_prefix);
331VNET_DECLARE(int, nd6_debug);
332VNET_DECLARE(int, nd6_onlink_ns_rfc4861);
|
333VNET_DECLARE(struct callout, nd6_timer_ch);
334
| |
335#define V_nd6_prune VNET(nd6_prune)
336#define V_nd6_delay VNET(nd6_delay)
337#define V_nd6_umaxtries VNET(nd6_umaxtries)
338#define V_nd6_mmaxtries VNET(nd6_mmaxtries)
339#define V_nd6_useloopback VNET(nd6_useloopback)
340#define V_nd6_maxnudhint VNET(nd6_maxnudhint)
341#define V_nd6_gctimer VNET(nd6_gctimer)
342#define V_nd_defrouter VNET(nd_defrouter)
343#define V_nd_prefix VNET(nd_prefix)
344#define V_nd6_debug VNET(nd6_debug)
345#define V_nd6_onlink_ns_rfc4861 VNET(nd6_onlink_ns_rfc4861)
| 333#define V_nd6_prune VNET(nd6_prune)
334#define V_nd6_delay VNET(nd6_delay)
335#define V_nd6_umaxtries VNET(nd6_umaxtries)
336#define V_nd6_mmaxtries VNET(nd6_mmaxtries)
337#define V_nd6_useloopback VNET(nd6_useloopback)
338#define V_nd6_maxnudhint VNET(nd6_maxnudhint)
339#define V_nd6_gctimer VNET(nd6_gctimer)
340#define V_nd_defrouter VNET(nd_defrouter)
341#define V_nd_prefix VNET(nd_prefix)
342#define V_nd6_debug VNET(nd6_debug)
343#define V_nd6_onlink_ns_rfc4861 VNET(nd6_onlink_ns_rfc4861)
|
| 344
345#define nd6log(x) do { if (V_nd6_debug) log x; } while (/*CONSTCOND*/ 0)
346
347VNET_DECLARE(struct callout, nd6_timer_ch);
|
346#define V_nd6_timer_ch VNET(nd6_timer_ch)
347
348/* nd6_rtr.c */
349VNET_DECLARE(int, nd6_defifindex);
350VNET_DECLARE(int, ip6_desync_factor); /* seconds */
351VNET_DECLARE(u_int32_t, ip6_temp_preferred_lifetime); /* seconds */
352VNET_DECLARE(u_int32_t, ip6_temp_valid_lifetime); /* seconds */
353VNET_DECLARE(int, ip6_temp_regen_advance); /* seconds */
| 348#define V_nd6_timer_ch VNET(nd6_timer_ch)
349
350/* nd6_rtr.c */
351VNET_DECLARE(int, nd6_defifindex);
352VNET_DECLARE(int, ip6_desync_factor); /* seconds */
353VNET_DECLARE(u_int32_t, ip6_temp_preferred_lifetime); /* seconds */
354VNET_DECLARE(u_int32_t, ip6_temp_valid_lifetime); /* seconds */
355VNET_DECLARE(int, ip6_temp_regen_advance); /* seconds */
|
354
| |
355#define V_nd6_defifindex VNET(nd6_defifindex)
356#define V_ip6_desync_factor VNET(ip6_desync_factor)
357#define V_ip6_temp_preferred_lifetime VNET(ip6_temp_preferred_lifetime)
358#define V_ip6_temp_valid_lifetime VNET(ip6_temp_valid_lifetime)
359#define V_ip6_temp_regen_advance VNET(ip6_temp_regen_advance)
360
| 356#define V_nd6_defifindex VNET(nd6_defifindex)
357#define V_ip6_desync_factor VNET(ip6_desync_factor)
358#define V_ip6_temp_preferred_lifetime VNET(ip6_temp_preferred_lifetime)
359#define V_ip6_temp_valid_lifetime VNET(ip6_temp_valid_lifetime)
360#define V_ip6_temp_regen_advance VNET(ip6_temp_regen_advance)
361
|
361#define nd6log(x) do { if (V_nd6_debug) log x; } while (/*CONSTCOND*/ 0)
362
| |
363union nd_opts {
364 struct nd_opt_hdr *nd_opt_array[8]; /* max = target address list */
365 struct {
366 struct nd_opt_hdr *zero;
367 struct nd_opt_hdr *src_lladdr;
368 struct nd_opt_hdr *tgt_lladdr;
369 struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
370 struct nd_opt_rd_hdr *rh;
371 struct nd_opt_mtu *mtu;
372 struct nd_opt_hdr *search; /* multiple opts */
373 struct nd_opt_hdr *last; /* multiple opts */
374 int done;
375 struct nd_opt_prefix_info *pi_end;/* multiple opts, end */
376 } nd_opt_each;
377};
378#define nd_opts_src_lladdr nd_opt_each.src_lladdr
379#define nd_opts_tgt_lladdr nd_opt_each.tgt_lladdr
380#define nd_opts_pi nd_opt_each.pi_beg
381#define nd_opts_pi_end nd_opt_each.pi_end
382#define nd_opts_rh nd_opt_each.rh
383#define nd_opts_mtu nd_opt_each.mtu
384#define nd_opts_search nd_opt_each.search
385#define nd_opts_last nd_opt_each.last
386#define nd_opts_done nd_opt_each.done
387
388/* XXX: need nd6_var.h?? */
389/* nd6.c */
390void nd6_init __P((void));
391#ifdef VIMAGE
392void nd6_destroy __P((void));
393#endif
394struct nd_ifinfo *nd6_ifattach __P((struct ifnet *));
395void nd6_ifdetach __P((struct nd_ifinfo *));
396int nd6_is_addr_neighbor __P((struct sockaddr_in6 *, struct ifnet *));
397void nd6_option_init __P((void *, int, union nd_opts *));
398struct nd_opt_hdr *nd6_option __P((union nd_opts *));
399int nd6_options __P((union nd_opts *));
400struct llentry *nd6_lookup __P((struct in6_addr *, int, struct ifnet *));
401void nd6_setmtu __P((struct ifnet *));
402void nd6_llinfo_settimer __P((struct llentry *, long));
403void nd6_llinfo_settimer_locked __P((struct llentry *, long));
404void nd6_timer __P((void *));
405void nd6_purge __P((struct ifnet *));
406void nd6_nud_hint __P((struct rtentry *, struct in6_addr *, int));
407int nd6_resolve __P((struct ifnet *, struct rtentry *, struct mbuf *,
408 struct sockaddr *, u_char *));
409int nd6_ioctl __P((u_long, caddr_t, struct ifnet *));
410struct llentry *nd6_cache_lladdr __P((struct ifnet *, struct in6_addr *,
411 char *, int, int, int));
412int nd6_output __P((struct ifnet *, struct ifnet *, struct mbuf *,
413 struct sockaddr_in6 *, struct rtentry *));
414int nd6_output_lle __P((struct ifnet *, struct ifnet *, struct mbuf *,
415 struct sockaddr_in6 *, struct rtentry *, struct llentry *,
416 struct mbuf **));
417int nd6_output_flush __P((struct ifnet *, struct ifnet *, struct mbuf *,
418 struct sockaddr_in6 *, struct route *));
419int nd6_need_cache __P((struct ifnet *));
420int nd6_storelladdr __P((struct ifnet *, struct mbuf *,
421 struct sockaddr *, u_char *, struct llentry **));
422
423/* nd6_nbr.c */
424void nd6_na_input __P((struct mbuf *, int, int));
425void nd6_na_output __P((struct ifnet *, const struct in6_addr *,
426 const struct in6_addr *, u_long, int, struct sockaddr *));
427void nd6_ns_input __P((struct mbuf *, int, int));
428void nd6_ns_output __P((struct ifnet *, const struct in6_addr *,
429 const struct in6_addr *, struct llentry *, int));
430caddr_t nd6_ifptomac __P((struct ifnet *));
431void nd6_dad_start __P((struct ifaddr *, int));
432void nd6_dad_stop __P((struct ifaddr *));
433void nd6_dad_duplicated __P((struct ifaddr *));
434
435/* nd6_rtr.c */
436void nd6_rs_input __P((struct mbuf *, int, int));
437void nd6_ra_input __P((struct mbuf *, int, int));
438void prelist_del __P((struct nd_prefix *));
439void defrouter_addreq __P((struct nd_defrouter *));
440void defrouter_reset __P((void));
441void defrouter_select __P((void));
442void defrtrlist_del __P((struct nd_defrouter *));
443void prelist_remove __P((struct nd_prefix *));
444int nd6_prelist_add __P((struct nd_prefixctl *, struct nd_defrouter *,
445 struct nd_prefix **));
446int nd6_prefix_onlink __P((struct nd_prefix *));
447int nd6_prefix_offlink __P((struct nd_prefix *));
448void pfxlist_onlink_check __P((void));
449struct nd_defrouter *defrouter_lookup __P((struct in6_addr *, struct ifnet *));
450struct nd_prefix *nd6_prefix_lookup __P((struct nd_prefixctl *));
451void rt6_flush __P((struct in6_addr *, struct ifnet *));
452int nd6_setdefaultiface __P((int));
453int in6_tmpifadd __P((const struct in6_ifaddr *, int, int));
454
455#endif /* _KERNEL */
456
457#endif /* _NETINET6_ND6_H_ */
| 362union nd_opts {
363 struct nd_opt_hdr *nd_opt_array[8]; /* max = target address list */
364 struct {
365 struct nd_opt_hdr *zero;
366 struct nd_opt_hdr *src_lladdr;
367 struct nd_opt_hdr *tgt_lladdr;
368 struct nd_opt_prefix_info *pi_beg; /* multiple opts, start */
369 struct nd_opt_rd_hdr *rh;
370 struct nd_opt_mtu *mtu;
371 struct nd_opt_hdr *search; /* multiple opts */
372 struct nd_opt_hdr *last; /* multiple opts */
373 int done;
374 struct nd_opt_prefix_info *pi_end;/* multiple opts, end */
375 } nd_opt_each;
376};
377#define nd_opts_src_lladdr nd_opt_each.src_lladdr
378#define nd_opts_tgt_lladdr nd_opt_each.tgt_lladdr
379#define nd_opts_pi nd_opt_each.pi_beg
380#define nd_opts_pi_end nd_opt_each.pi_end
381#define nd_opts_rh nd_opt_each.rh
382#define nd_opts_mtu nd_opt_each.mtu
383#define nd_opts_search nd_opt_each.search
384#define nd_opts_last nd_opt_each.last
385#define nd_opts_done nd_opt_each.done
386
387/* XXX: need nd6_var.h?? */
388/* nd6.c */
389void nd6_init __P((void));
390#ifdef VIMAGE
391void nd6_destroy __P((void));
392#endif
393struct nd_ifinfo *nd6_ifattach __P((struct ifnet *));
394void nd6_ifdetach __P((struct nd_ifinfo *));
395int nd6_is_addr_neighbor __P((struct sockaddr_in6 *, struct ifnet *));
396void nd6_option_init __P((void *, int, union nd_opts *));
397struct nd_opt_hdr *nd6_option __P((union nd_opts *));
398int nd6_options __P((union nd_opts *));
399struct llentry *nd6_lookup __P((struct in6_addr *, int, struct ifnet *));
400void nd6_setmtu __P((struct ifnet *));
401void nd6_llinfo_settimer __P((struct llentry *, long));
402void nd6_llinfo_settimer_locked __P((struct llentry *, long));
403void nd6_timer __P((void *));
404void nd6_purge __P((struct ifnet *));
405void nd6_nud_hint __P((struct rtentry *, struct in6_addr *, int));
406int nd6_resolve __P((struct ifnet *, struct rtentry *, struct mbuf *,
407 struct sockaddr *, u_char *));
408int nd6_ioctl __P((u_long, caddr_t, struct ifnet *));
409struct llentry *nd6_cache_lladdr __P((struct ifnet *, struct in6_addr *,
410 char *, int, int, int));
411int nd6_output __P((struct ifnet *, struct ifnet *, struct mbuf *,
412 struct sockaddr_in6 *, struct rtentry *));
413int nd6_output_lle __P((struct ifnet *, struct ifnet *, struct mbuf *,
414 struct sockaddr_in6 *, struct rtentry *, struct llentry *,
415 struct mbuf **));
416int nd6_output_flush __P((struct ifnet *, struct ifnet *, struct mbuf *,
417 struct sockaddr_in6 *, struct route *));
418int nd6_need_cache __P((struct ifnet *));
419int nd6_storelladdr __P((struct ifnet *, struct mbuf *,
420 struct sockaddr *, u_char *, struct llentry **));
421
422/* nd6_nbr.c */
423void nd6_na_input __P((struct mbuf *, int, int));
424void nd6_na_output __P((struct ifnet *, const struct in6_addr *,
425 const struct in6_addr *, u_long, int, struct sockaddr *));
426void nd6_ns_input __P((struct mbuf *, int, int));
427void nd6_ns_output __P((struct ifnet *, const struct in6_addr *,
428 const struct in6_addr *, struct llentry *, int));
429caddr_t nd6_ifptomac __P((struct ifnet *));
430void nd6_dad_start __P((struct ifaddr *, int));
431void nd6_dad_stop __P((struct ifaddr *));
432void nd6_dad_duplicated __P((struct ifaddr *));
433
434/* nd6_rtr.c */
435void nd6_rs_input __P((struct mbuf *, int, int));
436void nd6_ra_input __P((struct mbuf *, int, int));
437void prelist_del __P((struct nd_prefix *));
438void defrouter_addreq __P((struct nd_defrouter *));
439void defrouter_reset __P((void));
440void defrouter_select __P((void));
441void defrtrlist_del __P((struct nd_defrouter *));
442void prelist_remove __P((struct nd_prefix *));
443int nd6_prelist_add __P((struct nd_prefixctl *, struct nd_defrouter *,
444 struct nd_prefix **));
445int nd6_prefix_onlink __P((struct nd_prefix *));
446int nd6_prefix_offlink __P((struct nd_prefix *));
447void pfxlist_onlink_check __P((void));
448struct nd_defrouter *defrouter_lookup __P((struct in6_addr *, struct ifnet *));
449struct nd_prefix *nd6_prefix_lookup __P((struct nd_prefixctl *));
450void rt6_flush __P((struct in6_addr *, struct ifnet *));
451int nd6_setdefaultiface __P((int));
452int in6_tmpifadd __P((const struct in6_ifaddr *, int, int));
453
454#endif /* _KERNEL */
455
456#endif /* _NETINET6_ND6_H_ */
|