tor-android/external/badvpn_dns/ncd/examples/make_igmpproxy_config.ncd

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process main {
call("make_igmpproxy_config", {"br0", "eth1", "./igmpproxy.conf.template", "./igmpproxy.conf"});
println("Done.");
exit("0");
}
template make_igmpproxy_config {
alias("_arg0") upstream_iface;
alias("_arg1") downstream_iface;
alias("_arg2") template_file;
alias("_arg3") output_file;
# Make a list of interfaces to add as disabled (upstream and downstream will not be disabled).
var({
"eth0", "eth1", "eth2", "eth3", "eth4", "eth5", "eth6", "eth7", "eth8", "eth9",
"wlan0", "wlan1", "wlan2", "wlan3", "wlan4", "wlan5", "wlan6", "wlan7", "wlan8", "wlan9",
"tap0", "tap1", "tap2", "tap3", "tap4", "tap5", "tap6", "tap7", "tap8", "tap9",
"br0", "br1", "br2", "br3", "br4", "br5", "br6", "br7", "br8", "br9"
}) disabled_ifaces;
# Build replacements for template config.
var({"<UPSTREAM_IFACE>", "<DOWNSTREAM_IFACE>"}) regex;
var({upstream_iface, downstream_iface}) replace;
# Read template config.
file_read(template_file) template_data;
# Perform replacements.
regex_replace(template_data, regex, replace) replaced_data;
# Build string value from replaced_data, to which we will append
# configuration for disabled interfaces.
value(replaced_data) output_data;
# Build disabled strings.
Foreach (disabled_ifaces As iface) {
# Determine if the interface is disabled.
val_equal(iface, upstream_iface) is_up;
val_equal(iface, downstream_iface) is_down;
or(is_up, is_down) is_not_disabled;
not(is_not_disabled) is_disabled;
# If it's disabled, append to the configuration file.
If (is_disabled) {
concat("phyint ", iface, " disabled\n") str;
output_data->append(str);
};
};
# Write config.
file_write(output_file, output_data);
}