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1 | #!/usr/bin/awk -f |
2 | # |
3 | # genregdb.awk -- generate regdb.c from db.txt |
4 | # |
5 | # Actually, it reads from stdin (presumed to be db.txt) and writes |
6 | # to stdout (presumed to be regdb.c), but close enough... |
7 | # |
8 | # Copyright 2009 John W. Linville <linville@tuxdriver.com> |
9 | # |
10 | # This program is free software; you can redistribute it and/or modify |
11 | # it under the terms of the GNU General Public License version 2 as |
12 | # published by the Free Software Foundation. |
13 | # |
14 | |
15 | BEGIN { |
16 | active = 0 |
17 | rules = 0; |
18 | print "/*" |
19 | print " * DO NOT EDIT -- file generated from data in db.txt" |
20 | print " */" |
21 | print "" |
22 | print "#include <linux/nl80211.h>" |
23 | print "#include <net/cfg80211.h>" |
24 | print "" |
25 | regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n" |
26 | } |
27 | |
28 | /^[ \t]*#/ { |
29 | # Ignore |
30 | } |
31 | |
32 | !active && /^[ \t]*$/ { |
33 | # Ignore |
34 | } |
35 | |
36 | !active && /country/ { |
37 | country=$2 |
38 | sub(/:/, "", country) |
39 | printf "static const struct ieee80211_regdomain regdom_%s = {\n", country |
40 | printf "\t.alpha2 = \"%s\",\n", country |
41 | printf "\t.reg_rules = {\n" |
42 | active = 1 |
43 | regdb = regdb "\t®dom_" country ",\n" |
44 | } |
45 | |
46 | active && /^[ \t]*\(/ { |
47 | start = $1 |
48 | sub(/\(/, "", start) |
49 | end = $3 |
50 | bw = $5 |
51 | sub(/\),/, "", bw) |
52 | gain = $6 |
53 | sub(/\(/, "", gain) |
54 | sub(/,/, "", gain) |
55 | power = $7 |
56 | sub(/\)/, "", power) |
57 | sub(/,/, "", power) |
58 | # power might be in mW... |
59 | units = $8 |
60 | sub(/\)/, "", units) |
61 | sub(/,/, "", units) |
62 | if (units == "mW") { |
63 | if (power == 100) { |
64 | power = 20 |
65 | } else if (power == 200) { |
66 | power = 23 |
67 | } else if (power == 500) { |
68 | power = 27 |
69 | } else if (power == 1000) { |
70 | power = 30 |
71 | } else { |
72 | print "Unknown power value in database!" |
73 | } |
74 | } |
75 | flagstr = "" |
76 | for (i=8; i<=NF; i++) |
77 | flagstr = flagstr $i |
78 | split(flagstr, flagarray, ",") |
79 | flags = "" |
80 | for (arg in flagarray) { |
81 | if (flagarray[arg] == "NO-OFDM") { |
82 | flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | " |
83 | } else if (flagarray[arg] == "NO-CCK") { |
84 | flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | " |
85 | } else if (flagarray[arg] == "NO-INDOOR") { |
86 | flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | " |
87 | } else if (flagarray[arg] == "NO-OUTDOOR") { |
88 | flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | " |
89 | } else if (flagarray[arg] == "DFS") { |
90 | flags = flags "\n\t\t\tNL80211_RRF_DFS | " |
91 | } else if (flagarray[arg] == "PTP-ONLY") { |
92 | flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | " |
93 | } else if (flagarray[arg] == "PTMP-ONLY") { |
94 | flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | " |
95 | } else if (flagarray[arg] == "PASSIVE-SCAN") { |
96 | flags = flags "\n\t\t\tNL80211_RRF_PASSIVE_SCAN | " |
97 | } else if (flagarray[arg] == "NO-IBSS") { |
98 | flags = flags "\n\t\t\tNL80211_RRF_NO_IBSS | " |
99 | } |
100 | } |
101 | flags = flags "0" |
102 | printf "\t\tREG_RULE(%d, %d, %d, %d, %d, %s),\n", start, end, bw, gain, power, flags |
103 | rules++ |
104 | } |
105 | |
106 | active && /^[ \t]*$/ { |
107 | active = 0 |
108 | printf "\t},\n" |
109 | printf "\t.n_reg_rules = %d\n", rules |
110 | printf "};\n\n" |
111 | rules = 0; |
112 | } |
113 | |
114 | END { |
115 | print regdb "};" |
116 | print "" |
117 | print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);" |
118 | } |
119 |
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