genregdb.awk
4.01 KB
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
#!/usr/bin/awk -f
#
# genregdb.awk -- generate regdb.c from db.txt
#
# Actually, it reads from stdin (presumed to be db.txt) and writes
# to stdout (presumed to be regdb.c), but close enough...
#
# Copyright 2009 John W. Linville <linville@tuxdriver.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, 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.
BEGIN {
active = 0
rules = 0;
print "/*"
print " * DO NOT EDIT -- file generated from data in db.txt"
print " */"
print ""
print "#include <linux/nl80211.h>"
print "#include <net/cfg80211.h>"
print "#include \"regdb.h\""
print ""
regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n"
}
function parse_country_head() {
country=$2
sub(/:/, "", country)
printf "static const struct ieee80211_regdomain regdom_%s = {\n", country
printf "\t.alpha2 = \"%s\",\n", country
if ($NF ~ /DFS-ETSI/)
printf "\t.dfs_region = NL80211_DFS_ETSI,\n"
else if ($NF ~ /DFS-FCC/)
printf "\t.dfs_region = NL80211_DFS_FCC,\n"
else if ($NF ~ /DFS-JP/)
printf "\t.dfs_region = NL80211_DFS_JP,\n"
printf "\t.reg_rules = {\n"
active = 1
regdb = regdb "\t®dom_" country ",\n"
}
function parse_reg_rule()
{
flag_starts_at = 7
start = $1
sub(/\(/, "", start)
end = $3
bw = $5
sub(/\),/, "", bw)
gain = 0
power = $6
# power might be in mW...
units = $7
dfs_cac = 0
sub(/\(/, "", power)
sub(/\),/, "", power)
sub(/\),/, "", units)
sub(/\)/, "", units)
if (units == "mW") {
flag_starts_at = 8
power = 10 * log(power)/log(10)
if ($8 ~ /[[:digit:]]/) {
flag_starts_at = 9
dfs_cac = $8
}
} else {
if ($7 ~ /[[:digit:]]/) {
flag_starts_at = 8
dfs_cac = $7
}
}
sub(/\(/, "", dfs_cac)
sub(/\),/, "", dfs_cac)
flagstr = ""
for (i=flag_starts_at; i<=NF; i++)
flagstr = flagstr $i
split(flagstr, flagarray, ",")
flags = ""
for (arg in flagarray) {
if (flagarray[arg] == "NO-OFDM") {
flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | "
} else if (flagarray[arg] == "NO-CCK") {
flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | "
} else if (flagarray[arg] == "NO-INDOOR") {
flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | "
} else if (flagarray[arg] == "NO-OUTDOOR") {
flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | "
} else if (flagarray[arg] == "DFS") {
flags = flags "\n\t\t\tNL80211_RRF_DFS | "
} else if (flagarray[arg] == "PTP-ONLY") {
flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | "
} else if (flagarray[arg] == "PTMP-ONLY") {
flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | "
} else if (flagarray[arg] == "PASSIVE-SCAN") {
flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
} else if (flagarray[arg] == "NO-IBSS") {
flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
} else if (flagarray[arg] == "NO-IR") {
flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
} else if (flagarray[arg] == "AUTO-BW") {
flags = flags "\n\t\t\tNL80211_RRF_AUTO_BW | "
}
}
flags = flags "0"
printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
rules++
}
function print_tail_country()
{
active = 0
printf "\t},\n"
printf "\t.n_reg_rules = %d\n", rules
printf "};\n\n"
rules = 0;
}
/^[ \t]*#/ {
# Ignore
}
!active && /^[ \t]*$/ {
# Ignore
}
!active && /country/ {
parse_country_head()
}
active && /^[ \t]*\(/ {
parse_reg_rule()
}
active && /^[ \t]*$/ {
print_tail_country()
}
END {
if (active)
print_tail_country()
print regdb "};"
print ""
print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);"
}