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
|
/* $OpenBSD: ieee80211_regdomain.c,v 1.1 2004/11/02 02:15:49 reyk Exp $ */
/*
* Copyright (c) 2004 Reyk Floeter <reyk@vantronix.net>.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
* OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY
* SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Basic regulation domain extensions for the IEEE 802.11 stack
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/endian.h>
#include <sys/errno.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_arp.h>
#include <net/if_llc.h>
#ifdef INET
#include <netinet/in.h>
#include <netinet/if_ether.h>
#endif
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_regdomain.h>
int ieee80211_regdomain_compare_cn(const void *, const void *);
int ieee80211_regdomain_compare_rn(const void *, const void *);
static const struct ieee80211_regdomainname
ieee80211_r_names[] = IEEE80211_REGDOMAIN_NAMES;
static const struct ieee80211_regdomainmap
ieee80211_r_map[] = IEEE80211_REGDOMAIN_MAP;
static const struct ieee80211_countryname
ieee80211_r_ctry[] = IEEE80211_REGDOMAIN_COUNTRY_NAMES;
#ifndef bsearch
void *bsearch(const void *, const void *, size_t, size_t,
int (*)(const void *, const void *));
void *
bsearch(const void *key, const void *base0, size_t nmemb, size_t size,
int (*compar)(const void *, const void *))
{
const char *base = base0;
int lim, cmp;
const void *p;
for (lim = nmemb; lim != 0; lim >>= 1) {
p = base + (lim >> 1) * size;
cmp = (*compar)(key, p);
if (cmp == 0)
return ((void *)p);
if (cmp > 0) { /* key > p: move right */
base = (char *)p + size;
lim--;
} /* else move left */
}
return (NULL);
}
#endif
int
ieee80211_regdomain_compare_cn(const void *a, const void *b)
{
return(strcmp(((struct ieee80211_countryname*)a)->cn_name,
((struct ieee80211_countryname*)b)->cn_name));
}
int
ieee80211_regdomain_compare_rn(const void *a, const void *b)
{
return(strcmp(((struct ieee80211_regdomainname*)a)->rn_name,
((struct ieee80211_regdomainname*)b)->rn_name));
}
u_int16_t
ieee80211_name2countrycode(const char *name)
{
struct ieee80211_countryname key = { CTRY_DEFAULT, name }, *value;
if((value = bsearch(&key, &ieee80211_r_ctry,
sizeof(ieee80211_r_ctry) / sizeof(ieee80211_r_ctry[0]),
sizeof(struct ieee80211_countryname),
ieee80211_regdomain_compare_cn)) != NULL)
return(value->cn_code);
return(CTRY_DEFAULT);
}
u_int32_t
ieee80211_name2regdomain(const char *name)
{
struct ieee80211_regdomainname key = { DMN_DEFAULT, name }, *value;
if((value = bsearch(&key, &ieee80211_r_names,
sizeof(ieee80211_r_names) / sizeof(ieee80211_r_names[0]),
sizeof(struct ieee80211_regdomainname),
ieee80211_regdomain_compare_rn)) != NULL)
return((u_int32_t)value->rn_domain);
return((u_int32_t)DMN_DEFAULT);
}
const char *
ieee80211_countrycode2name(u_int16_t code)
{
int i;
/* Linear search over the table */
for(i = 0; i < (sizeof(ieee80211_r_ctry) / sizeof(ieee80211_r_ctry[0])); i++)
if(ieee80211_r_ctry[i].cn_code == code)
return(ieee80211_r_ctry[i].cn_name);
return(NULL);
}
const char *
ieee80211_regdomain2name(u_int32_t regdomain)
{
int i;
/* Linear search over the table */
for(i = 0; i < (sizeof(ieee80211_r_names) /
sizeof(ieee80211_r_names[0])); i++)
if(ieee80211_r_names[i].rn_domain == regdomain)
return(ieee80211_r_names[i].rn_name);
return(ieee80211_r_names[0].rn_name);
}
u_int32_t
ieee80211_regdomain2flag(u_int16_t regdomain, u_int16_t mhz)
{
int i;
for(i = 0; i < (sizeof(ieee80211_r_map) /
sizeof(ieee80211_r_map[0])); i++) {
if(ieee80211_r_map[i].rm_domain == regdomain) {
if(mhz >= 2000 && mhz <= 3000)
return((u_int32_t)ieee80211_r_map[i].rm_domain_2ghz);
if(mhz >= IEEE80211_CHANNELS_5GHZ_MIN &&
mhz <= IEEE80211_CHANNELS_5GHZ_MAX)
return((u_int32_t)ieee80211_r_map[i].rm_domain_5ghz);
}
}
return((u_int32_t)DMN_DEBUG);
}
|
