159 lines
4.0 KiB
Awk
159 lines
4.0 KiB
Awk
#!/usr/bin/awk -f
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#
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# genregdb.awk -- generate regdb.c from db.txt
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#
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# Actually, it reads from stdin (presumed to be db.txt) and writes
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# to stdout (presumed to be regdb.c), but close enough...
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#
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# Copyright 2009 John W. Linville <linville@tuxdriver.com>
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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BEGIN {
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active = 0
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rules = 0;
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print "/*"
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print " * DO NOT EDIT -- file generated from data in db.txt"
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print " */"
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print ""
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print "#include <linux/nl80211.h>"
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print "#include <net/cfg80211.h>"
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print "#include \"regdb.h\""
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print ""
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regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n"
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}
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function parse_country_head() {
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country=$2
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sub(/:/, "", country)
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printf "static const struct ieee80211_regdomain regdom_%s = {\n", country
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printf "\t.alpha2 = \"%s\",\n", country
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if ($NF ~ /DFS-ETSI/)
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printf "\t.dfs_region = NL80211_DFS_ETSI,\n"
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else if ($NF ~ /DFS-FCC/)
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printf "\t.dfs_region = NL80211_DFS_FCC,\n"
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else if ($NF ~ /DFS-JP/)
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printf "\t.dfs_region = NL80211_DFS_JP,\n"
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printf "\t.reg_rules = {\n"
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active = 1
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regdb = regdb "\t®dom_" country ",\n"
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}
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function parse_reg_rule()
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{
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flag_starts_at = 7
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start = $1
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sub(/\(/, "", start)
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end = $3
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bw = $5
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sub(/\),/, "", bw)
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gain = 0
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power = $6
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# power might be in mW...
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units = $7
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dfs_cac = 0
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sub(/\(/, "", power)
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sub(/\),/, "", power)
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sub(/\),/, "", units)
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sub(/\)/, "", units)
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if (units == "mW") {
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flag_starts_at = 8
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power = 10 * log(power)/log(10)
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if ($8 ~ /[[:digit:]]/) {
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flag_starts_at = 9
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dfs_cac = $8
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}
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} else {
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if ($7 ~ /[[:digit:]]/) {
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flag_starts_at = 8
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dfs_cac = $7
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}
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}
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sub(/\(/, "", dfs_cac)
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sub(/\),/, "", dfs_cac)
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flagstr = ""
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for (i=flag_starts_at; i<=NF; i++)
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flagstr = flagstr $i
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split(flagstr, flagarray, ",")
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flags = ""
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for (arg in flagarray) {
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if (flagarray[arg] == "NO-OFDM") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | "
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} else if (flagarray[arg] == "NO-CCK") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | "
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} else if (flagarray[arg] == "NO-INDOOR") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | "
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} else if (flagarray[arg] == "NO-OUTDOOR") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | "
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} else if (flagarray[arg] == "DFS") {
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flags = flags "\n\t\t\tNL80211_RRF_DFS | "
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} else if (flagarray[arg] == "PTP-ONLY") {
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flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | "
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} else if (flagarray[arg] == "PTMP-ONLY") {
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flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | "
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} else if (flagarray[arg] == "PASSIVE-SCAN") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
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} else if (flagarray[arg] == "NO-IBSS") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
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} else if (flagarray[arg] == "NO-IR") {
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flags = flags "\n\t\t\tNL80211_RRF_NO_IR | "
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} else if (flagarray[arg] == "AUTO-BW") {
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flags = flags "\n\t\t\tNL80211_RRF_AUTO_BW | "
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}
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}
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flags = flags "0"
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printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags
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rules++
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}
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function print_tail_country()
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{
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active = 0
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printf "\t},\n"
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printf "\t.n_reg_rules = %d\n", rules
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printf "};\n\n"
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rules = 0;
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}
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/^[ \t]*#/ {
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# Ignore
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}
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!active && /^[ \t]*$/ {
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# Ignore
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}
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!active && /country/ {
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parse_country_head()
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}
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active && /^[ \t]*\(/ {
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parse_reg_rule()
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}
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active && /^[ \t]*$/ {
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print_tail_country()
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}
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END {
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if (active)
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print_tail_country()
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print regdb "};"
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print ""
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print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);"
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}
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