openwrt/package/network/services/hostapd/files/hostapd.uc

477 lines
9.8 KiB
Ucode
Raw Normal View History

let libubus = require("ubus");
import { open, readfile } from "fs";
import { wdev_create, wdev_remove, is_equal, vlist_new, phy_is_fullmac } from "common";
let ubus = libubus.connect();
hostapd.data.config = {};
hostapd.data.file_fields = {
vlan_file: true,
wpa_psk_file: true,
accept_mac_file: true,
deny_mac_file: true,
eap_user_file: true,
ca_cert: true,
server_cert: true,
server_cert2: true,
private_key: true,
private_key2: true,
dh_file: true,
eap_sim_db: true,
};
function iface_remove(cfg)
{
if (!cfg || !cfg.bss || !cfg.bss[0] || !cfg.bss[0].ifname)
return;
hostapd.remove_iface(cfg.bss[0].ifname);
for (let bss in cfg.bss)
wdev_remove(bss.ifname);
}
function iface_gen_config(phy, config)
{
let str = `data:
${join("\n", config.radio.data)}
channel=${config.radio.channel}
`;
for (let i = 0; i < length(config.bss); i++) {
let bss = config.bss[i];
let type = i > 0 ? "bss" : "interface";
str += `
${type}=${bss.ifname}
${join("\n", bss.data)}
`;
}
return str;
}
function iface_restart(phy, config, old_config)
{
iface_remove(old_config);
iface_remove(config);
if (!config.bss || !config.bss[0]) {
hostapd.printf(`No bss for phy ${phy}`);
return;
}
let bss = config.bss[0];
let err = wdev_create(phy, bss.ifname, { mode: "ap" });
if (err)
hostapd.printf(`Failed to create ${bss.ifname} on phy ${phy}: ${err}`);
let config_inline = iface_gen_config(phy, config);
let ubus = hostapd.data.ubus;
ubus.call("wpa_supplicant", "phy_set_state", { phy: phy, stop: true });
if (hostapd.add_iface(`bss_config=${bss.ifname}:${config_inline}`) < 0)
hostapd.printf(`hostapd.add_iface failed for phy ${phy} ifname=${bss.ifname}`);
ubus.call("wpa_supplicant", "phy_set_state", { phy: phy, stop: false });
}
function array_to_obj(arr, key, start)
{
let obj = {};
start ??= 0;
for (let i = start; i < length(arr); i++) {
let cur = arr[i];
obj[cur[key]] = cur;
}
return obj;
}
function find_array_idx(arr, key, val)
{
for (let i = 0; i < length(arr); i++)
if (arr[i][key] == val)
return i;
return -1;
}
function bss_reload_psk(bss, config, old_config)
{
if (is_equal(old_config.hash.wpa_psk_file, config.hash.wpa_psk_file))
return;
old_config.hash.wpa_psk_file = config.hash.wpa_psk_file;
if (!is_equal(old_config, config))
return;
let ret = bss.ctrl("RELOAD_WPA_PSK");
ret ??= "failed";
hostapd.printf(`Reload WPA PSK file for bss ${config.ifname}: ${ret}`);
}
function iface_reload_config(phy, config, old_config)
{
if (!old_config || !is_equal(old_config.radio, config.radio))
return false;
if (is_equal(old_config.bss, config.bss))
return true;
if (!old_config.bss || !old_config.bss[0])
return false;
if (config.bss[0].ifname != old_config.bss[0].ifname)
return false;
let iface = hostapd.interfaces[config.bss[0].ifname];
if (!iface)
return false;
let config_inline = iface_gen_config(phy, config);
bss_reload_psk(iface.bss[0], config.bss[0], old_config.bss[0]);
if (!is_equal(config.bss[0], old_config.bss[0])) {
if (phy_is_fullmac(phy))
return false;
hostapd.printf(`Reload config for bss '${config.bss[0].ifname}' on phy '${phy}'`);
if (iface.bss[0].set_config(config_inline, 0) < 0) {
hostapd.printf(`Failed to set config`);
return false;
}
}
let bss_list = array_to_obj(iface.bss, "name", 1);
let new_cfg = array_to_obj(config.bss, "ifname", 1);
let old_cfg = array_to_obj(old_config.bss, "ifname", 1);
for (let name in old_cfg) {
let bss = bss_list[name];
if (!bss) {
hostapd.printf(`bss '${name}' not found`);
return false;
}
if (!new_cfg[name]) {
hostapd.printf(`Remove bss '${name}' on phy '${phy}'`);
bss.delete();
wdev_remove(name);
continue;
}
let new_cfg_data = new_cfg[name];
delete new_cfg[name];
if (is_equal(old_cfg[name], new_cfg_data))
continue;
hostapd.printf(`Reload config for bss '${name}' on phy '${phy}'`);
let idx = find_array_idx(config.bss, "ifname", name);
if (idx < 0) {
hostapd.printf(`bss index not found`);
return false;
}
if (bss.set_config(config_inline, idx) < 0) {
hostapd.printf(`Failed to set config`);
return false;
}
}
for (let name in new_cfg) {
hostapd.printf(`Add bss '${name}' on phy '${phy}'`);
let idx = find_array_idx(config.bss, "ifname", name);
if (idx < 0) {
hostapd.printf(`bss index not found`);
return false;
}
if (iface.add_bss(config_inline, idx) < 0) {
hostapd.printf(`Failed to add bss`);
return false;
}
}
return true;
}
function iface_set_config(phy, config)
{
let old_config = hostapd.data.config[phy];
hostapd.data.config[phy] = config;
if (!config)
return iface_remove(old_config);
let ret = iface_reload_config(phy, config, old_config);
if (ret) {
hostapd.printf(`Reloaded settings for phy ${phy}`);
return 0;
}
hostapd.printf(`Restart interface for phy ${phy}`);
return iface_restart(phy, config, old_config);
}
function config_add_bss(config, name)
{
let bss = {
ifname: name,
data: [],
hash: {}
};
push(config.bss, bss);
return bss;
}
function iface_load_config(filename)
{
let f = open(filename, "r");
if (!f)
return null;
let config = {
radio: {
data: []
},
bss: [],
orig_file: filename,
};
let bss;
let line;
while ((line = trim(f.read("line"))) != null) {
let val = split(line, "=", 2);
if (!val[0])
continue;
if (val[0] == "interface") {
bss = config_add_bss(config, val[1]);
break;
}
if (val[0] == "channel") {
config.radio.channel = val[1];
continue;
}
push(config.radio.data, line);
}
while ((line = trim(f.read("line"))) != null) {
let val = split(line, "=", 2);
if (!val[0])
continue;
if (val[0] == "bss") {
bss = config_add_bss(config, val[1]);
continue;
}
if (hostapd.data.file_fields[val[0]])
bss.hash[val[0]] = hostapd.sha1(readfile(val[1]));
push(bss.data, line);
}
f.close();
return config;
}
let main_obj = {
reload: {
args: {
phy: "",
},
call: function(req) {
try {
let phy_list = req.args.phy ? [ req.args.phy ] : keys(hostapd.data.config);
for (let phy_name in phy_list) {
let phy = hostapd.data.config[phy_name];
let config = iface_load_config(phy.orig_file);
iface_set_config(phy_name, config);
}
} catch(e) {
hostapd.printf(`Error reloading config: ${e}\n${e.stacktrace[0].context}`);
return libubus.STATUS_INVALID_ARGUMENT;
}
return 0;
}
},
apsta_state: {
args: {
phy: "",
up: true,
frequency: 0,
sec_chan_offset: 0,
csa: true,
csa_count: 0,
},
call: function(req) {
if (req.args.up == null || !req.args.phy)
return libubus.STATUS_INVALID_ARGUMENT;
let phy = req.args.phy;
let config = hostapd.data.config[phy];
if (!config || !config.bss || !config.bss[0] || !config.bss[0].ifname)
return 0;
let iface = hostapd.interfaces[config.bss[0].ifname];
if (!iface)
return 0;
if (!req.args.up) {
iface.stop();
return 0;
}
let freq = req.args.frequency;
if (!freq)
return libubus.STATUS_INVALID_ARGUMENT;
let sec_offset = req.args.sec_chan_offset;
if (sec_offset != -1 && sec_offset != 1)
sec_offset = 0;
let width = 0;
for (let line in config.radio.data) {
if (!sec_offset && match(line, /^ht_capab=.*HT40/)) {
sec_offset = null; // auto-detect
continue;
}
let val = match(line, /^(vht_oper_chwidth|he_oper_chwidth)=(\d+)/);
if (!val)
continue;
val = int(val[2]);
if (val > width)
width = val;
}
if (freq < 4000)
width = 0;
let freq_info = hostapd.freq_info(freq, sec_offset, width);
if (!freq_info)
return libubus.STATUS_UNKNOWN_ERROR;
let ret;
if (req.args.csa) {
freq_info.csa_count = req.args.csa_count ?? 10;
ret = iface.switch_channel(freq_info);
} else {
iface.stop();
ret = iface.start(freq_info);
}
if (!ret)
return libubus.STATUS_UNKNOWN_ERROR;
return 0;
}
},
config_set: {
args: {
phy: "",
config: "",
prev_config: "",
},
call: function(req) {
let phy = req.args.phy;
let file = req.args.config;
let prev_file = req.args.prev_config;
if (!phy)
return libubus.STATUS_INVALID_ARGUMENT;
try {
if (prev_file && !hostapd.data.config[phy]) {
let config = iface_load_config(prev_file);
if (config)
config.radio.data = [];
hostapd.data.config[phy] = config;
}
let config = iface_load_config(file);
hostapd.printf(`Set new config for phy ${phy}: ${file}`);
iface_set_config(phy, config);
} catch(e) {
hostapd.printf(`Error loading config: ${e}\n${e.stacktrace[0].context}`);
return libubus.STATUS_INVALID_ARGUMENT;
}
return {
pid: hostapd.getpid()
};
}
},
config_add: {
args: {
iface: "",
config: "",
},
call: function(req) {
if (!req.args.iface || !req.args.config)
return libubus.STATUS_INVALID_ARGUMENT;
if (hostapd.add_iface(`bss_config=${req.args.iface}:${req.args.config}`) < 0)
return libubus.STATUS_INVALID_ARGUMENT;
return {
pid: hostapd.getpid()
};
}
},
config_remove: {
args: {
iface: ""
},
call: function(req) {
if (!req.args.iface)
return libubus.STATUS_INVALID_ARGUMENT;
hostapd.remove_iface(req.args.iface);
return 0;
}
},
};
hostapd.data.ubus = ubus;
hostapd.data.obj = ubus.publish("hostapd", main_obj);
function bss_event(type, name, data) {
let ubus = hostapd.data.ubus;
data ??= {};
data.name = name;
hostapd.data.obj.notify(`bss.${type}`, data, null, null, null, -1);
ubus.call("service", "event", { type: `hostapd.${name}.${type}`, data: {} });
}
return {
shutdown: function() {
for (let phy in hostapd.data.config)
iface_set_config(phy, null);
hostapd.ubus.disconnect();
},
bss_add: function(name, obj) {
bss_event("add", name);
},
bss_reload: function(name, obj, reconf) {
bss_event("reload", name, { reconf: reconf != 0 });
},
bss_remove: function(name, obj) {
bss_event("remove", name);
}
};