2/* $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ */
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
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 project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1982, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. All advertising materials mentioning features or use of this software
46 * must display the following acknowledgement:
47 * This product includes software developed by the University of
48 * California, Berkeley and its contributors.
49 * 4. Neither the name of the University nor the names of its contributors
50 * may be used to endorse or promote products derived from this software
51 * without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 * SUCH DAMAGE.
64 *
65 * @(#)ip_var.h 8.1 (Berkeley) 6/10/93
66 */
67
68#ifndef _NETINET6_IP6_VAR_H_
69#define _NETINET6_IP6_VAR_H_
70
71/*
72 * IP6 reassembly queue structure. Each fragment
73 * being reassembled is attached to one of these structures.
74 */
75struct ip6q {
76 u_int32_t ip6q_head;
77 u_int16_t ip6q_len;
78 u_int8_t ip6q_nxt; /* ip6f_nxt in first fragment */
79 u_int8_t ip6q_hlim;
80 struct ip6asfrag *ip6q_down;
81 struct ip6asfrag *ip6q_up;
82 u_int32_t ip6q_ident;
83 u_int8_t ip6q_arrive;
84 u_int8_t ip6q_ttl;
85 struct in6_addr ip6q_src, ip6q_dst;
86 struct ip6q *ip6q_next;
87 struct ip6q *ip6q_prev;
88 int ip6q_unfrglen; /* len of unfragmentable part */
89#ifdef notyet
90 u_char *ip6q_nxtp;
91#endif
92};
93
94struct ip6asfrag {
95 u_int32_t ip6af_head;
96 u_int16_t ip6af_len;
97 u_int8_t ip6af_nxt;
98 u_int8_t ip6af_hlim;
99 /* must not override the above members during reassembling */
100 struct ip6asfrag *ip6af_down;
101 struct ip6asfrag *ip6af_up;
102 struct mbuf *ip6af_m;
103 int ip6af_offset; /* offset in ip6af_m to next header */
104 int ip6af_frglen; /* fragmentable part length */
105 int ip6af_off; /* fragment offset */
106 u_int16_t ip6af_mff; /* more fragment bit in frag off */
107};
108
109#define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m))
110
111struct ip6_moptions {
112 struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */
113 u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */
114 u_char im6o_multicast_loop; /* 1 >= hear sends if a member */
115 LIST_HEAD(, in6_multi_mship) im6o_memberships;
116};
117
118/*
119 * Control options for outgoing packets
120 */
121
122/* Routing header related info */
123struct ip6po_rhinfo {
124 struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */
125 struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */
126};
127#define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr
128#define ip6po_route ip6po_rhinfo.ip6po_rhi_route
129
130struct ip6_pktopts {
131 struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */
132 int ip6po_hlim; /* Hoplimit for outgoing packets */
133
134 /* Outgoing IF/address information */
135 struct in6_pktinfo *ip6po_pktinfo;
136
137 struct sockaddr *ip6po_nexthop; /* Next-hop address */
138
139 struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */
140
141 /* Destination options header (before a routing header) */
142 struct ip6_dest *ip6po_dest1;
143
144 /* Routing header related info. */
145 struct ip6po_rhinfo ip6po_rhinfo;
146
147 /* Destination options header (after a routing header) */
148 struct ip6_dest *ip6po_dest2;
149};
150
151/*
152 * Control options for incoming packets
153 */
154
155struct ip6stat {
156 u_quad_t ip6s_total; /* total packets received */
157 u_quad_t ip6s_tooshort; /* packet too short */
158 u_quad_t ip6s_toosmall; /* not enough data */
159 u_quad_t ip6s_fragments; /* fragments received */
160 u_quad_t ip6s_fragdropped; /* frags dropped(dups, out of space) */
161 u_quad_t ip6s_fragtimeout; /* fragments timed out */
162 u_quad_t ip6s_fragoverflow; /* fragments that exceeded limit */
163 u_quad_t ip6s_forward; /* packets forwarded */
164 u_quad_t ip6s_cantforward; /* packets rcvd for unreachable dest */
165 u_quad_t ip6s_redirectsent; /* packets forwarded on same net */
166 u_quad_t ip6s_delivered; /* datagrams delivered to upper level*/
167 u_quad_t ip6s_localout; /* total ip packets generated here */
168 u_quad_t ip6s_odropped; /* lost packets due to nobufs, etc. */
169 u_quad_t ip6s_reassembled; /* total packets reassembled ok */
170 u_quad_t ip6s_fragmented; /* datagrams sucessfully fragmented */
171 u_quad_t ip6s_ofragments; /* output fragments created */
172 u_quad_t ip6s_cantfrag; /* don't fragment flag was set, etc. */
173 u_quad_t ip6s_badoptions; /* error in option processing */
174 u_quad_t ip6s_noroute; /* packets discarded due to no route */
175 u_quad_t ip6s_badvers; /* ip6 version != 6 */
176 u_quad_t ip6s_rawout; /* total raw ip packets generated */
177 u_quad_t ip6s_badscope; /* scope error */
178 u_quad_t ip6s_notmember; /* don't join this multicast group */
179 u_quad_t ip6s_nxthist[256]; /* next header history */
180 u_quad_t ip6s_m1; /* one mbuf */
181 u_quad_t ip6s_m2m[32]; /* two or more mbuf */
182 u_quad_t ip6s_mext1; /* one ext mbuf */
183 u_quad_t ip6s_mext2m; /* two or more ext mbuf */
184 u_quad_t ip6s_exthdrtoolong; /* ext hdr are not continuous */
185 u_quad_t ip6s_nogif; /* no match gif found */
186 u_quad_t ip6s_toomanyhdr; /* discarded due to too many headers */
187
188 /*
189 * statistics for improvement of the source address selection
190 * algorithm:
191 * XXX: hardcoded 16 = # of ip6 multicast scope types + 1
192 */
193 /* number of times that address selection fails */
194 u_quad_t ip6s_sources_none;
195 /* number of times that an address on the outgoing I/F is chosen */
196 u_quad_t ip6s_sources_sameif[16];
197 /* number of times that an address on a non-outgoing I/F is chosen */
198 u_quad_t ip6s_sources_otherif[16];
199 /*
200 * number of times that an address that has the same scope
201 * from the destination is chosen.
202 */
203 u_quad_t ip6s_sources_samescope[16];
204 /*
205 * number of times that an address that has a different scope
206 * from the destination is chosen.
207 */
208 u_quad_t ip6s_sources_otherscope[16];
209 /* number of times that a deprecated address is chosen */
210 u_quad_t ip6s_sources_deprecated[16];
211
212 u_quad_t ip6s_forward_cachehit;
213 u_quad_t ip6s_forward_cachemiss;
214};
215
216#ifdef _KERNEL
217/*
218 * IPv6 onion peeling state.
219 * it will be initialized when we come into ip6_input().
220 * XXX do not make it a kitchen sink!
221 */
222struct ip6aux {
223 u_int32_t ip6a_flags;
224#define IP6A_SWAP 0x01 /* swapped home/care-of on packet */
225#define IP6A_HASEEN 0x02 /* HA was present */
226#define IP6A_BRUID 0x04 /* BR Unique Identifier was present */
227#define IP6A_RTALERTSEEN 0x08 /* rtalert present */
228
229 /* ip6.ip6_src */
230 struct in6_addr ip6a_careof; /* care-of address of the peer */
231 struct in6_addr ip6a_home; /* home address of the peer */
232 u_int16_t ip6a_bruid; /* BR unique identifier */
233
234 /* ip6.ip6_dst */
235 struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */
236
237 /* rtalert */
238 u_int16_t ip6a_rtalert; /* rtalert option value */
239
240 /*
241 * decapsulation history will be here.
242 * with IPsec it may not be accurate.
243 */
244};
245#endif
246
247#ifdef _KERNEL
248/* flags passed to ip6_output as last parameter */
249#define IPV6_DADOUTPUT 0x01 /* DAD */
250#define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */
251#define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */
252
253extern struct ip6stat ip6stat; /* statistics */
254extern u_int32_t ip6_id; /* fragment identifier */
255extern int ip6_defhlim; /* default hop limit */
256extern int ip6_defmcasthlim; /* default multicast hop limit */
257extern int ip6_forwarding; /* act as router? */
258extern int ip6_forward_srcrt; /* forward src-routed? */
259extern int ip6_gif_hlim; /* Hop limit for gif encap packet */
260extern int ip6_use_deprecated; /* allow deprecated addr as source */
261extern int ip6_rr_prune; /* router renumbering prefix
262 * walk list every 5 sec. */
263extern int ip6_v6only;
264
265extern struct socket *ip6_mrouter; /* multicast routing daemon */
266extern int ip6_sendredirects; /* send IP redirects when forwarding? */
267extern int ip6_maxfragpackets; /* Maximum packets in reassembly queue */
268extern int ip6_sourcecheck; /* Verify source interface */
269extern int ip6_sourcecheck_interval; /* Interval between log messages */
270extern int ip6_accept_rtadv; /* Acts as a host not a router */
271extern int ip6_keepfaith; /* Firewall Aided Internet Translator */
272extern int ip6_log_interval;
273extern time_t ip6_log_time;
274extern int ip6_hdrnestlimit; /* upper limit of # of extension headers */
275extern int ip6_dad_count; /* DupAddrDetectionTransmits */
276
277extern u_int32_t ip6_flow_seq;
278extern int ip6_auto_flowlabel;
279extern int ip6_auto_linklocal;
280
281extern int ip6_anonportmin; /* minimum ephemeral port */
282extern int ip6_anonportmax; /* maximum ephemeral port */
283extern int ip6_lowportmin; /* minimum reserved port */
284extern int ip6_lowportmax; /* maximum reserved port */
285
286extern int ip6_use_tempaddr; /* whether to use temporary addresses. */
287
| 2/* $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ */
3
4/*
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
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 project nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1982, 1986, 1993
35 * The Regents of the University of California. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. All advertising materials mentioning features or use of this software
46 * must display the following acknowledgement:
47 * This product includes software developed by the University of
48 * California, Berkeley and its contributors.
49 * 4. Neither the name of the University nor the names of its contributors
50 * may be used to endorse or promote products derived from this software
51 * without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 * SUCH DAMAGE.
64 *
65 * @(#)ip_var.h 8.1 (Berkeley) 6/10/93
66 */
67
68#ifndef _NETINET6_IP6_VAR_H_
69#define _NETINET6_IP6_VAR_H_
70
71/*
72 * IP6 reassembly queue structure. Each fragment
73 * being reassembled is attached to one of these structures.
74 */
75struct ip6q {
76 u_int32_t ip6q_head;
77 u_int16_t ip6q_len;
78 u_int8_t ip6q_nxt; /* ip6f_nxt in first fragment */
79 u_int8_t ip6q_hlim;
80 struct ip6asfrag *ip6q_down;
81 struct ip6asfrag *ip6q_up;
82 u_int32_t ip6q_ident;
83 u_int8_t ip6q_arrive;
84 u_int8_t ip6q_ttl;
85 struct in6_addr ip6q_src, ip6q_dst;
86 struct ip6q *ip6q_next;
87 struct ip6q *ip6q_prev;
88 int ip6q_unfrglen; /* len of unfragmentable part */
89#ifdef notyet
90 u_char *ip6q_nxtp;
91#endif
92};
93
94struct ip6asfrag {
95 u_int32_t ip6af_head;
96 u_int16_t ip6af_len;
97 u_int8_t ip6af_nxt;
98 u_int8_t ip6af_hlim;
99 /* must not override the above members during reassembling */
100 struct ip6asfrag *ip6af_down;
101 struct ip6asfrag *ip6af_up;
102 struct mbuf *ip6af_m;
103 int ip6af_offset; /* offset in ip6af_m to next header */
104 int ip6af_frglen; /* fragmentable part length */
105 int ip6af_off; /* fragment offset */
106 u_int16_t ip6af_mff; /* more fragment bit in frag off */
107};
108
109#define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m))
110
111struct ip6_moptions {
112 struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */
113 u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */
114 u_char im6o_multicast_loop; /* 1 >= hear sends if a member */
115 LIST_HEAD(, in6_multi_mship) im6o_memberships;
116};
117
118/*
119 * Control options for outgoing packets
120 */
121
122/* Routing header related info */
123struct ip6po_rhinfo {
124 struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */
125 struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */
126};
127#define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr
128#define ip6po_route ip6po_rhinfo.ip6po_rhi_route
129
130struct ip6_pktopts {
131 struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */
132 int ip6po_hlim; /* Hoplimit for outgoing packets */
133
134 /* Outgoing IF/address information */
135 struct in6_pktinfo *ip6po_pktinfo;
136
137 struct sockaddr *ip6po_nexthop; /* Next-hop address */
138
139 struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */
140
141 /* Destination options header (before a routing header) */
142 struct ip6_dest *ip6po_dest1;
143
144 /* Routing header related info. */
145 struct ip6po_rhinfo ip6po_rhinfo;
146
147 /* Destination options header (after a routing header) */
148 struct ip6_dest *ip6po_dest2;
149};
150
151/*
152 * Control options for incoming packets
153 */
154
155struct ip6stat {
156 u_quad_t ip6s_total; /* total packets received */
157 u_quad_t ip6s_tooshort; /* packet too short */
158 u_quad_t ip6s_toosmall; /* not enough data */
159 u_quad_t ip6s_fragments; /* fragments received */
160 u_quad_t ip6s_fragdropped; /* frags dropped(dups, out of space) */
161 u_quad_t ip6s_fragtimeout; /* fragments timed out */
162 u_quad_t ip6s_fragoverflow; /* fragments that exceeded limit */
163 u_quad_t ip6s_forward; /* packets forwarded */
164 u_quad_t ip6s_cantforward; /* packets rcvd for unreachable dest */
165 u_quad_t ip6s_redirectsent; /* packets forwarded on same net */
166 u_quad_t ip6s_delivered; /* datagrams delivered to upper level*/
167 u_quad_t ip6s_localout; /* total ip packets generated here */
168 u_quad_t ip6s_odropped; /* lost packets due to nobufs, etc. */
169 u_quad_t ip6s_reassembled; /* total packets reassembled ok */
170 u_quad_t ip6s_fragmented; /* datagrams sucessfully fragmented */
171 u_quad_t ip6s_ofragments; /* output fragments created */
172 u_quad_t ip6s_cantfrag; /* don't fragment flag was set, etc. */
173 u_quad_t ip6s_badoptions; /* error in option processing */
174 u_quad_t ip6s_noroute; /* packets discarded due to no route */
175 u_quad_t ip6s_badvers; /* ip6 version != 6 */
176 u_quad_t ip6s_rawout; /* total raw ip packets generated */
177 u_quad_t ip6s_badscope; /* scope error */
178 u_quad_t ip6s_notmember; /* don't join this multicast group */
179 u_quad_t ip6s_nxthist[256]; /* next header history */
180 u_quad_t ip6s_m1; /* one mbuf */
181 u_quad_t ip6s_m2m[32]; /* two or more mbuf */
182 u_quad_t ip6s_mext1; /* one ext mbuf */
183 u_quad_t ip6s_mext2m; /* two or more ext mbuf */
184 u_quad_t ip6s_exthdrtoolong; /* ext hdr are not continuous */
185 u_quad_t ip6s_nogif; /* no match gif found */
186 u_quad_t ip6s_toomanyhdr; /* discarded due to too many headers */
187
188 /*
189 * statistics for improvement of the source address selection
190 * algorithm:
191 * XXX: hardcoded 16 = # of ip6 multicast scope types + 1
192 */
193 /* number of times that address selection fails */
194 u_quad_t ip6s_sources_none;
195 /* number of times that an address on the outgoing I/F is chosen */
196 u_quad_t ip6s_sources_sameif[16];
197 /* number of times that an address on a non-outgoing I/F is chosen */
198 u_quad_t ip6s_sources_otherif[16];
199 /*
200 * number of times that an address that has the same scope
201 * from the destination is chosen.
202 */
203 u_quad_t ip6s_sources_samescope[16];
204 /*
205 * number of times that an address that has a different scope
206 * from the destination is chosen.
207 */
208 u_quad_t ip6s_sources_otherscope[16];
209 /* number of times that a deprecated address is chosen */
210 u_quad_t ip6s_sources_deprecated[16];
211
212 u_quad_t ip6s_forward_cachehit;
213 u_quad_t ip6s_forward_cachemiss;
214};
215
216#ifdef _KERNEL
217/*
218 * IPv6 onion peeling state.
219 * it will be initialized when we come into ip6_input().
220 * XXX do not make it a kitchen sink!
221 */
222struct ip6aux {
223 u_int32_t ip6a_flags;
224#define IP6A_SWAP 0x01 /* swapped home/care-of on packet */
225#define IP6A_HASEEN 0x02 /* HA was present */
226#define IP6A_BRUID 0x04 /* BR Unique Identifier was present */
227#define IP6A_RTALERTSEEN 0x08 /* rtalert present */
228
229 /* ip6.ip6_src */
230 struct in6_addr ip6a_careof; /* care-of address of the peer */
231 struct in6_addr ip6a_home; /* home address of the peer */
232 u_int16_t ip6a_bruid; /* BR unique identifier */
233
234 /* ip6.ip6_dst */
235 struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */
236
237 /* rtalert */
238 u_int16_t ip6a_rtalert; /* rtalert option value */
239
240 /*
241 * decapsulation history will be here.
242 * with IPsec it may not be accurate.
243 */
244};
245#endif
246
247#ifdef _KERNEL
248/* flags passed to ip6_output as last parameter */
249#define IPV6_DADOUTPUT 0x01 /* DAD */
250#define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */
251#define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */
252
253extern struct ip6stat ip6stat; /* statistics */
254extern u_int32_t ip6_id; /* fragment identifier */
255extern int ip6_defhlim; /* default hop limit */
256extern int ip6_defmcasthlim; /* default multicast hop limit */
257extern int ip6_forwarding; /* act as router? */
258extern int ip6_forward_srcrt; /* forward src-routed? */
259extern int ip6_gif_hlim; /* Hop limit for gif encap packet */
260extern int ip6_use_deprecated; /* allow deprecated addr as source */
261extern int ip6_rr_prune; /* router renumbering prefix
262 * walk list every 5 sec. */
263extern int ip6_v6only;
264
265extern struct socket *ip6_mrouter; /* multicast routing daemon */
266extern int ip6_sendredirects; /* send IP redirects when forwarding? */
267extern int ip6_maxfragpackets; /* Maximum packets in reassembly queue */
268extern int ip6_sourcecheck; /* Verify source interface */
269extern int ip6_sourcecheck_interval; /* Interval between log messages */
270extern int ip6_accept_rtadv; /* Acts as a host not a router */
271extern int ip6_keepfaith; /* Firewall Aided Internet Translator */
272extern int ip6_log_interval;
273extern time_t ip6_log_time;
274extern int ip6_hdrnestlimit; /* upper limit of # of extension headers */
275extern int ip6_dad_count; /* DupAddrDetectionTransmits */
276
277extern u_int32_t ip6_flow_seq;
278extern int ip6_auto_flowlabel;
279extern int ip6_auto_linklocal;
280
281extern int ip6_anonportmin; /* minimum ephemeral port */
282extern int ip6_anonportmax; /* maximum ephemeral port */
283extern int ip6_lowportmin; /* minimum reserved port */
284extern int ip6_lowportmax; /* maximum reserved port */
285
286extern int ip6_use_tempaddr; /* whether to use temporary addresses. */
287
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288extern struct pr_usrreqs rip6_usrreqs;
289struct sockopt;
290
291struct inpcb;
292
293int icmp6_ctloutput __P((struct socket *, struct sockopt *sopt));
294
295struct in6_ifaddr;
296void ip6_init __P((void));
297void ip6_input __P((struct mbuf *));
298struct in6_ifaddr *ip6_getdstifaddr __P((struct mbuf *));
299void ip6_freepcbopts __P((struct ip6_pktopts *));
300void ip6_freemoptions __P((struct ip6_moptions *));
301int ip6_unknown_opt __P((u_int8_t *, struct mbuf *, int));
302char * ip6_get_prevhdr __P((struct mbuf *, int));
303int ip6_nexthdr __P((struct mbuf *, int, int, int *));
304int ip6_lasthdr __P((struct mbuf *, int, int, int *));
305
306struct ip6aux *ip6_addaux __P((struct mbuf *));
307struct ip6aux *ip6_findaux __P((struct mbuf *));
308void ip6_delaux __P((struct mbuf *));
309
310int ip6_mforward __P((struct ip6_hdr *, struct ifnet *, struct mbuf *));
311int ip6_process_hopopts __P((struct mbuf *, u_int8_t *, int, u_int32_t *,
312 u_int32_t *));
313void ip6_savecontrol __P((struct inpcb *, struct mbuf **, struct ip6_hdr *,
314 struct mbuf *));
315void ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *,
316 u_int32_t *));
317int ip6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
318
319void ip6_forward __P((struct mbuf *, int));
320
321void ip6_mloopback __P((struct ifnet *, struct mbuf *, struct sockaddr_in6 *));
322int ip6_output __P((struct mbuf *, struct ip6_pktopts *,
323 struct route_in6 *,
324 int,
325 struct ip6_moptions *, struct ifnet **,
326 struct inpcb *));
327int ip6_ctloutput __P((struct socket *, struct sockopt *sopt));
328void init_ip6pktopts __P((struct ip6_pktopts *));
329int ip6_setpktoptions __P((struct mbuf *, struct ip6_pktopts *, int, int));
330void ip6_clearpktopts __P((struct ip6_pktopts *, int, int));
331struct ip6_pktopts *ip6_copypktopts __P((struct ip6_pktopts *, int));
332int ip6_optlen __P((struct inpcb *));
333
334int route6_input __P((struct mbuf **, int *, int));
335
336void frag6_init __P((void));
337int frag6_input __P((struct mbuf **, int *, int));
338void frag6_slowtimo __P((void));
339void frag6_drain __P((void));
340
341void rip6_init __P((void));
342int rip6_input __P((struct mbuf **mp, int *offp, int proto));
343void rip6_ctlinput __P((int, struct sockaddr *, void *));
344int rip6_ctloutput __P((struct socket *so, struct sockopt *sopt));
345int rip6_output __P((struct mbuf *, ...));
346int rip6_usrreq __P((struct socket *,
347 int, struct mbuf *, struct mbuf *, struct mbuf *, struct thread *));
348
349int dest6_input __P((struct mbuf **, int *, int));
350int none_input __P((struct mbuf **, int *, int));
351#endif /* _KERNEL */
352
353#endif /* !_NETINET6_IP6_VAR_H_ */
| 292extern struct pr_usrreqs rip6_usrreqs;
293struct sockopt;
294
295struct inpcb;
296
297int icmp6_ctloutput __P((struct socket *, struct sockopt *sopt));
298
299struct in6_ifaddr;
300void ip6_init __P((void));
301void ip6_input __P((struct mbuf *));
302struct in6_ifaddr *ip6_getdstifaddr __P((struct mbuf *));
303void ip6_freepcbopts __P((struct ip6_pktopts *));
304void ip6_freemoptions __P((struct ip6_moptions *));
305int ip6_unknown_opt __P((u_int8_t *, struct mbuf *, int));
306char * ip6_get_prevhdr __P((struct mbuf *, int));
307int ip6_nexthdr __P((struct mbuf *, int, int, int *));
308int ip6_lasthdr __P((struct mbuf *, int, int, int *));
309
310struct ip6aux *ip6_addaux __P((struct mbuf *));
311struct ip6aux *ip6_findaux __P((struct mbuf *));
312void ip6_delaux __P((struct mbuf *));
313
314int ip6_mforward __P((struct ip6_hdr *, struct ifnet *, struct mbuf *));
315int ip6_process_hopopts __P((struct mbuf *, u_int8_t *, int, u_int32_t *,
316 u_int32_t *));
317void ip6_savecontrol __P((struct inpcb *, struct mbuf **, struct ip6_hdr *,
318 struct mbuf *));
319void ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *,
320 u_int32_t *));
321int ip6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
322
323void ip6_forward __P((struct mbuf *, int));
324
325void ip6_mloopback __P((struct ifnet *, struct mbuf *, struct sockaddr_in6 *));
326int ip6_output __P((struct mbuf *, struct ip6_pktopts *,
327 struct route_in6 *,
328 int,
329 struct ip6_moptions *, struct ifnet **,
330 struct inpcb *));
331int ip6_ctloutput __P((struct socket *, struct sockopt *sopt));
332void init_ip6pktopts __P((struct ip6_pktopts *));
333int ip6_setpktoptions __P((struct mbuf *, struct ip6_pktopts *, int, int));
334void ip6_clearpktopts __P((struct ip6_pktopts *, int, int));
335struct ip6_pktopts *ip6_copypktopts __P((struct ip6_pktopts *, int));
336int ip6_optlen __P((struct inpcb *));
337
338int route6_input __P((struct mbuf **, int *, int));
339
340void frag6_init __P((void));
341int frag6_input __P((struct mbuf **, int *, int));
342void frag6_slowtimo __P((void));
343void frag6_drain __P((void));
344
345void rip6_init __P((void));
346int rip6_input __P((struct mbuf **mp, int *offp, int proto));
347void rip6_ctlinput __P((int, struct sockaddr *, void *));
348int rip6_ctloutput __P((struct socket *so, struct sockopt *sopt));
349int rip6_output __P((struct mbuf *, ...));
350int rip6_usrreq __P((struct socket *,
351 int, struct mbuf *, struct mbuf *, struct mbuf *, struct thread *));
352
353int dest6_input __P((struct mbuf **, int *, int));
354int none_input __P((struct mbuf **, int *, int));
355#endif /* _KERNEL */
356
357#endif /* !_NETINET6_IP6_VAR_H_ */
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