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#!/usr/bin/env ucode
'use strict';
import { vlist_new, is_equal, wdev_create, wdev_set_mesh_params, wdev_remove, phy_open } from "/usr/share/hostap/common.uc";
import { readfile, writefile, basename, readlink, glob } from "fs";
let libubus = require("ubus");
let keep_devices = {};
let phy = shift(ARGV);
let command = shift(ARGV);
let phydev;
function iface_stop(wdev)
{
if (keep_devices[wdev.ifname])
return;
wdev_remove(wdev.ifname);
}
function iface_start(wdev)
{
let ifname = wdev.ifname;
if (readfile(`/sys/class/net/${ifname}/ifindex`)) {
system([ "ip", "link", "set", "dev", ifname, "down" ]);
wdev_remove(ifname);
}
let wdev_config = {};
for (let key in wdev)
wdev_config[key] = wdev[key];
if (!wdev_config.macaddr && wdev.mode != "monitor")
wdev_config.macaddr = phydev.macaddr_next();
wdev_create(phy, ifname, wdev_config);
system([ "ip", "link", "set", "dev", ifname, "up" ]);
if (wdev.freq)
system(`iw dev ${ifname} set freq ${wdev.freq} ${wdev.htmode}`);
if (wdev.mode == "adhoc") {
let cmd = ["iw", "dev", ifname, "ibss", "join", wdev.ssid, wdev.freq, wdev.htmode, "fixed-freq" ];
if (wdev.bssid)
push(cmd, wdev.bssid);
for (let key in [ "beacon-interval", "basic-rates", "mcast-rate", "keys" ])
if (wdev[key])
push(cmd, key, wdev[key]);
system(cmd);
} else if (wdev.mode == "mesh") {
let cmd = [ "iw", "dev", ifname, "mesh", "join", wdev.ssid, "freq", wdev.freq, wdev.htmode ];
for (let key in [ "mcast-rate", "beacon-interval" ])
if (wdev[key])
push(cmd, key, wdev[key]);
system(cmd);
wdev_set_mesh_params(ifname, wdev);
}
}
function iface_cb(new_if, old_if)
{
if (old_if && new_if && is_equal(old_if, new_if))
return;
if (old_if)
iface_stop(old_if);
if (new_if)
iface_start(new_if);
}
function drop_inactive(config)
{
for (let key in config) {
if (!readfile(`/sys/class/net/${key}/ifindex`))
delete config[key];
}
}
function add_ifname(config)
{
for (let key in config)
config[key].ifname = key;
}
function delete_ifname(config)
{
for (let key in config)
delete config[key].ifname;
}
function add_existing(phy, config)
{
let wdevs = glob(`/sys/class/ieee80211/${phy}/device/net/*`);
wdevs = map(wdevs, (arg) => basename(arg));
for (let wdev in wdevs) {
if (config[wdev])
continue;
if (basename(readlink(`/sys/class/net/${wdev}/phy80211`)) != phy)
continue;
if (trim(readfile(`/sys/class/net/${wdev}/operstate`)) == "down")
config[wdev] = {};
}
}
function usage()
{
warn(`Usage: ${basename(sourcepath())} <phy> <command> [<arguments>]
Commands:
set_config <config> [<device]...] - set phy configuration
get_macaddr <id> - get phy MAC address for vif index <id>
`);
exit(1);
}
const commands = {
set_config: function(args) {
let statefile = `/var/run/wdev-${phy}.json`;
let new_config = shift(args);
for (let dev in ARGV)
keep_devices[dev] = true;
if (!new_config)
usage();
new_config = json(new_config);
if (!new_config) {
warn("Invalid configuration\n");
exit(1);
}
let old_config = readfile(statefile);
if (old_config)
old_config = json(old_config);
let config = vlist_new(iface_cb);
if (type(old_config) == "object")
config.data = old_config;
add_existing(phy, config.data);
add_ifname(config.data);
drop_inactive(config.data);
let ubus = libubus.connect();
let data = ubus.call("hostapd", "config_get_macaddr_list", { phy: phy });
let macaddr_list = [];
if (type(data) == "object" && data.macaddr)
macaddr_list = data.macaddr;
ubus.disconnect();
phydev.macaddr_init(macaddr_list);
add_ifname(new_config);
config.update(new_config);
drop_inactive(config.data);
delete_ifname(config.data);
writefile(statefile, sprintf("%J", config.data));
},
get_macaddr: function(args) {
let data = {};
for (let arg in args) {
arg = split(arg, "=", 2);
data[arg[0]] = arg[1];
}
let macaddr = phydev.macaddr_generate(data);
if (!macaddr) {
warn(`Could not get MAC address for phy ${phy}\n`);
exit(1);
}
print(macaddr + "\n");
},
};
if (!phy || !command | !commands[command])
usage();
phydev = phy_open(phy);
if (!phydev) {
warn(`PHY ${phy} does not exist\n`);
exit(1);
}
commands[command](ARGV);
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