forked from radvd-project/radvd
-
Notifications
You must be signed in to change notification settings - Fork 0
/
defaults.h
249 lines (193 loc) · 6.84 KB
/
defaults.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
/*
*
* Authors:
* Lars Fenneberg <lf@elemental.net>
*
* This software is Copyright 1996,1997 by the above mentioned author(s),
* All Rights Reserved.
*
* The license which is distributed with this software in the file COPYRIGHT
* applies to this software. If your distribution is missing this file, you
* may request it from <reubenhwk@gmail.com>.
*
*/
#ifndef DEFAULTS_H
#define DEFAULTS_H
#include "config.h"
#include "includes.h"
#include "radvd.h"
/* maximum message size for incoming and outgoing RSs and RAs */
#define MSG_SIZE_RECV 1500
#define MSG_SIZE_SEND 1452
#define MAX2(X,Y) ( (( X ) >= ( Y )) ? ( X ) : ( Y ))
/* Router Configuration Variables: */
/* For each multicast interface: */
#define DFLT_IgnoreIfMissing 1
#define DFLT_AdvSendAdv 0
#define DFLT_MaxRtrAdvInterval 600
#define DFLT_MinRtrAdvInterval(iface) (0.33 * (iface)->MaxRtrAdvInterval)
#define DFLT_AdvManagedFlag 0
#define DFLT_AdvOtherConfigFlag 0
#define DFLT_AdvLinkMTU 0
#define DFLT_AdvReachableTime 0
#define DFLT_AdvRetransTimer 0
#define DFLT_AdvCurHopLimit 64 /* as per RFC 1700 or the
next incarnation of it :) */
#define DFLT_AdvDefaultLifetime(iface) MAX2(1, (int)(3.0 * (iface)->MaxRtrAdvInterval))
#define DFLT_MinDelayBetweenRAs MIN_DELAY_BETWEEN_RAS
#define DFLT_AdvDefaultPreference 0
/* Options sent with RA */
#define DFLT_AdvSourceLLAddress 1
/* Each prefix has an associated: */
#define DFLT_AdvValidLifetime 86400 /* seconds */
#define DFLT_AdvOnLinkFlag 1
#define DFLT_AdvPreferredLifetime 14400 /* seconds */
#define DFLT_AdvAutonomousFlag 1
#define DFLT_DeprecatePrefixFlag 0
#define DFLT_DecrementLifetimesFlag 0
/* Each route has an associated: */
#define DFLT_AdvRouteLifetime(iface) (3 * (iface)->MaxRtrAdvInterval)
#define DFLT_AdvRoutePreference 0 /* medium */
#define DFLT_RemoveRouteFlag 1
/* RDNSS */
#define DFLT_AdvRDNSSLifetime(iface) (iface)->MaxRtrAdvInterval
#define DFLT_FlushRDNSSFlag 1
/* DNSSL */
#define DFLT_AdvDNSSLLifetime(iface) (iface)->MaxRtrAdvInterval
#define DFLT_FlushDNSSLFlag 1
/* Protocol (RFC4861) constants: */
/* Router constants: */
#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16
#define MAX_INITIAL_RTR_ADVERTISEMENTS 3
#define MAX_FINAL_RTR_ADVERTISEMENTS 3
#define MIN_DELAY_BETWEEN_RAS 3.0
#define MIN_DELAY_BETWEEN_RAS_MIPv6 (30.0/1000.0)
#define MAX_RA_DELAY_SECONDS (0.5)
/* Host constants: */
#define MAX_RTR_SOLICITATION_DELAY 1
#define RTR_SOLICITATION_INTERVAL 4
#define MAX_RTR_SOLICITATIONS 3
/* Node constants: */
#define MAX_MULTICAST_SOLICIT 3
#define MAX_UNICAST_SOLICIT 3
#define MAX_ANYCAST_DELAY_TIME 1
#define MAX_NEIGHBOR_ADVERTISEMENT 3
#define REACHABLE_TIME 30000 /* milliseconds */
#define RETRANS_TIMER 1000 /* milliseconds */
#define DELAY_FIRST_PROBE_TIME 5
#define MIN_RANDOM_FACTOR (1.0/2.0)
#define MAX_RANDOM_FACTOR (3.0/2.0)
/* MAX and MIN (RFC4861), Mobile IPv6 extensions will override if in use */
#define MIN_MaxRtrAdvInterval 4
#define MAX_MaxRtrAdvInterval 1800
#define MIN_MinRtrAdvInterval 3
#define MAX_MinRtrAdvInterval(iface) (0.75 * (iface)->MaxRtrAdvInterval)
#define MIN_AdvDefaultLifetime(iface) (MAX2(1,(iface)->MaxRtrAdvInterval))
#define MAX_AdvDefaultLifetime 9000
#define MIN_AdvLinkMTU 1280
#define MAX_AdvLinkMTU 131072
#define MIN_AdvReachableTime 100
#define MAX_AdvReachableTime 3600000 /* 1 hour in milliseconds */
#define MIN_AdvRetransTimer 10
#define MAX_AdvRetransTimer 3600000
#define MIN_AdvCurHopLimit 2
#define MAX_AdvCurHopLimit 255
#define MAX_PrefixLen 128
/* SLAAC (RFC4862) Constants and Derived Values */
#define MIN_AdvValidLifetime 7203 /* slight >2 hours in secs */
/*
* Mobile IPv6 extensions, off by default
*/
#define DFLT_AdvRouterAddr 0
#define DFLT_AdvHomeAgentFlag 0
#define DFLT_AdvIntervalOpt 0
#define DFLT_AdvHomeAgentInfo 0
/* Option types (defined also at least in glibc 2.2's netinet/icmp6.h) */
#ifndef ND_OPT_RTR_ADV_INTERVAL
#define ND_OPT_RTR_ADV_INTERVAL 7
#endif
#ifndef ND_OPT_HOME_AGENT_INFO
#define ND_OPT_HOME_AGENT_INFO 8
#endif
/* de-facto codepoint used by many implementations was '9',
the official IANA assignment is '24' */
#undef ND_OPT_ROUTE_INFORMATION
#define ND_OPT_ROUTE_INFORMATION 24
/* XXX: some libc's like KAME already had nd_opt_route_info! */
struct nd_opt_route_info_local { /* route information */
uint8_t nd_opt_ri_type;
uint8_t nd_opt_ri_len;
uint8_t nd_opt_ri_prefix_len;
uint8_t nd_opt_ri_flags_reserved;
uint32_t nd_opt_ri_lifetime;
struct in6_addr nd_opt_ri_prefix;
};
/* the reserved field is 8 bits and we're interested of the middle two: 000xx000 */
#define ND_OPT_RI_PRF_SHIFT 3
#define ND_OPT_RI_PRF_MASK (3 << ND_OPT_RI_PRF_SHIFT) /* 00011000 = 0x18 */
#undef ND_OPT_RDNSS_INFORMATION
#define ND_OPT_RDNSS_INFORMATION 25
/* */
struct nd_opt_rdnss_info_local {
uint8_t nd_opt_rdnssi_type;
uint8_t nd_opt_rdnssi_len;
uint16_t nd_opt_rdnssi_pref_flag_reserved;
uint32_t nd_opt_rdnssi_lifetime;
struct in6_addr nd_opt_rdnssi_addr1;
struct in6_addr nd_opt_rdnssi_addr2;
struct in6_addr nd_opt_rdnssi_addr3;
};
/* pref/flag/reserved field : yyyyx00000000000 (big endian) - 00000000yyyyx000 (little indian); where yyyy = pref, x = flag */
#if BYTE_ORDER == BIG_ENDIAN
#define ND_OPT_RDNSSI_PREF_SHIFT 12
#else
#define ND_OPT_RDNSSI_PREF_SHIFT 4
#endif
#define ND_OPT_RDNSSI_PREF_MASK (0xf << ND_OPT_RDNSSI_PREF_SHIFT)
#undef ND_OPT_DNSSL_INFORMATION
#define ND_OPT_DNSSL_INFORMATION 31
/* */
struct nd_opt_dnssl_info_local {
uint8_t nd_opt_dnssli_type;
uint8_t nd_opt_dnssli_len;
uint16_t nd_opt_dnssli_reserved;
uint32_t nd_opt_dnssli_lifetime;
unsigned char nd_opt_dnssli_suffixes[];
};
/* Flags */
#ifndef ND_RA_FLAG_HOME_AGENT
#define ND_RA_FLAG_HOME_AGENT 0x20
#endif
#ifndef ND_OPT_PI_FLAG_RADDR
#define ND_OPT_PI_FLAG_RADDR 0x20
#endif
#ifndef ND_OPT_RDNSSI_FLAG_S
#if BYTE_ORDER == BIG_ENDIAN
#define ND_OPT_RDNSSI_FLAG_S 0x0800
#else
#define ND_OPT_RDNSSI_FLAG_S 0x0008
#endif
#endif
/* Configurable values */
#define DFLT_HomeAgentPreference 0
#define DFLT_HomeAgentLifetime(iface) ((iface)->ra_header_info.AdvDefaultLifetime)
/* Other */
#define MIN_MinRtrAdvInterval_MIPv6 (3.0/100.0)
#define MIN_MaxRtrAdvInterval_MIPv6 (7.0/100.0)
#define RTR_SOLICITATION_INTERVAL_MIPv6 1 /* Recommended value by MIPv6 */
#define Cautious_MaxRtrAdvInterval (2.0/10.0)
#define Cautious_MaxRtrAdvInterval_Leeway (2.0/100.0)
#define MIN_HomeAgentLifetime 1 /* 0 must NOT be used */
#define MAX_HomeAgentLifetime 65520 /* 18.2 hours in secs */
/* #define MAX_RTR_SOLICITATIONS This MAY be ignored by MIPv6 */
/* NEMO extensions, off by default */
#define DFLT_AdvMobRtrSupportFlag 0
/* Flags */
#ifndef ND_OPT_HAI_FLAG_SUPPORT_MR
#if BYTE_ORDER == BIG_ENDIAN
#define ND_OPT_HAI_FLAG_SUPPORT_MR 0x8000
#else /* BYTE_ORDER == LITTLE_ENDIAN */
#define ND_OPT_HAI_FLAG_SUPPORT_MR 0x0080
#endif
#endif
#endif