diff options
Diffstat (limited to 'net/wireless/genregdb.awk')
| -rw-r--r-- | net/wireless/genregdb.awk | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk new file mode 100644 index 000000000..baf2426b5 --- /dev/null +++ b/net/wireless/genregdb.awk @@ -0,0 +1,158 @@ +#!/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);" +} |