#!/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> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # 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" } /^[ \t]*#/ { # Ignore } !active && /^[ \t]*$/ { # Ignore } !active && /country/ { country=$2 sub(/:/, "", country) printf "static const struct ieee80211_regdomain regdom_%s = {\n", country printf "\t.alpha2 = \"%s\",\n", country printf "\t.reg_rules = {\n" active = 1 regdb = regdb "\t®dom_" country ",\n" } active && /^[ \t]*\(/ { start = $1 sub(/\(/, "", start) end = $3 bw = $5 sub(/\),/, "", bw) gain = $6 sub(/\(/, "", gain) sub(/,/, "", gain) power = $7 sub(/\)/, "", power) sub(/,/, "", power) # power might be in mW... units = $8 sub(/\)/, "", units) sub(/,/, "", units) if (units == "mW") { if (power == 100) { power = 20 } else if (power == 200) { power = 23 } else if (power == 500) { power = 27 } else if (power == 1000) { power = 30 } else { print "Unknown power value in database!" } } flagstr = "" for (i=8; i<=NF; i++) flagstr = flagstr $i split(flagstr, flagarray, ",") flags = "" for (arg in flagarray) { if (flagarray[arg] == "NO-OFDM") { flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | " } else if (flagarray[arg] == "NO-CCK") { flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | " } else if (flagarray[arg] == "NO-INDOOR") { flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | " } else if (flagarray[arg] == "NO-OUTDOOR") { flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | " } else if (flagarray[arg] == "DFS") { flags = flags "\n\t\t\tNL80211_RRF_DFS | " } else if (flagarray[arg] == "PTP-ONLY") { flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | " } else if (flagarray[arg] == "PTMP-ONLY") { flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | " } else if (flagarray[arg] == "PASSIVE-SCAN") { flags = flags "\n\t\t\tNL80211_RRF_PASSIVE_SCAN | " } else if (flagarray[arg] == "NO-IBSS") { flags = flags "\n\t\t\tNL80211_RRF_NO_IBSS | " } } flags = flags "0" printf "\t\tREG_RULE(%d, %d, %d, %d, %d, %s),\n", start, end, bw, gain, power, flags rules++ } active && /^[ \t]*$/ { active = 0 printf "\t},\n" printf "\t.n_reg_rules = %d\n", rules printf "};\n\n" rules = 0; } END { print regdb "};" print "" print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);" }