#!/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);" }