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 15BEGIN { 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 "#include \"regdb.h\"" 25 print "" 26 regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n" 27} 28 29/^[ \t]*#/ { 30 # Ignore 31} 32 33!active && /^[ \t]*$/ { 34 # Ignore 35} 36 37!active && /country/ { 38 country=$2 39 sub(/:/, "", country) 40 printf "static const struct ieee80211_regdomain regdom_%s = {\n", country 41 printf "\t.alpha2 = \"%s\",\n", country 42 printf "\t.reg_rules = {\n" 43 active = 1 44 regdb = regdb "\t®dom_" country ",\n" 45} 46 47active && /^[ \t]*\(/ { 48 start = $1 49 sub(/\(/, "", start) 50 end = $3 51 bw = $5 52 sub(/\),/, "", bw) 53 gain = $6 54 sub(/\(/, "", gain) 55 sub(/,/, "", gain) 56 power = $7 57 sub(/\)/, "", power) 58 sub(/,/, "", power) 59 # power might be in mW... 60 units = $8 61 sub(/\)/, "", units) 62 sub(/,/, "", units) 63 if (units == "mW") { 64 if (power == 100) { 65 power = 20 66 } else if (power == 200) { 67 power = 23 68 } else if (power == 500) { 69 power = 27 70 } else if (power == 1000) { 71 power = 30 72 } else { 73 print "Unknown power value in database!" 74 } 75 } 76 flagstr = "" 77 for (i=8; i<=NF; i++) 78 flagstr = flagstr $i 79 split(flagstr, flagarray, ",") 80 flags = "" 81 for (arg in flagarray) { 82 if (flagarray[arg] == "NO-OFDM") { 83 flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | " 84 } else if (flagarray[arg] == "NO-CCK") { 85 flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | " 86 } else if (flagarray[arg] == "NO-INDOOR") { 87 flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | " 88 } else if (flagarray[arg] == "NO-OUTDOOR") { 89 flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | " 90 } else if (flagarray[arg] == "DFS") { 91 flags = flags "\n\t\t\tNL80211_RRF_DFS | " 92 } else if (flagarray[arg] == "PTP-ONLY") { 93 flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | " 94 } else if (flagarray[arg] == "PTMP-ONLY") { 95 flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | " 96 } else if (flagarray[arg] == "PASSIVE-SCAN") { 97 flags = flags "\n\t\t\tNL80211_RRF_PASSIVE_SCAN | " 98 } else if (flagarray[arg] == "NO-IBSS") { 99 flags = flags "\n\t\t\tNL80211_RRF_NO_IBSS | " 100 } 101 } 102 flags = flags "0" 103 printf "\t\tREG_RULE(%d, %d, %d, %d, %d, %s),\n", start, end, bw, gain, power, flags 104 rules++ 105} 106 107active && /^[ \t]*$/ { 108 active = 0 109 printf "\t},\n" 110 printf "\t.n_reg_rules = %d\n", rules 111 printf "};\n\n" 112 rules = 0; 113} 114 115END { 116 print regdb "};" 117 print "" 118 print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);" 119} 120