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

   1 let libubus = require("ubus");
   2 import { open, readfile } from "fs";
   3 import { wdev_create, wdev_remove, is_equal, vlist_new } from "common";
   4
   5 let ubus = libubus.connect();
   6
   7 wpas.data.config = {};
   8 wpas.data.iface_phy = {};
   9
  10 function iface_stop(iface)
  11 {
  12         let ifname = iface.config.iface;
  13
  14         if (!iface.running)
  15                 return;
  16
  17         delete wpas.data.iface_phy[ifname];
  18         wpas.remove_iface(ifname);
  19         wdev_remove(ifname);
  20         iface.running = false;
  21 }
  22
  23 function iface_start(phy, iface)
  24 {
  25         if (iface.running)
  26                 return;
  27
  28         let ifname = iface.config.iface;
  29
  30         wpas.data.iface_phy[ifname] = phy;
  31         wdev_remove(ifname);
  32         let ret = wdev_create(phy, ifname, iface.config);
  33         if (ret)
  34                 wpas.printf(`Failed to create device ${ifname}: ${ret}`);
  35         wpas.add_iface(iface.config);
  36         iface.running = true;
  37 }
  38
  39 function iface_cb(new_if, old_if)
  40 {
  41         if (old_if && new_if && is_equal(old_if.config, new_if.config)) {
  42                 new_if.running = old_if.running;
  43                 return;
  44         }
  45
  46         if (old_if)
  47                 iface_stop(old_if);
  48 }
  49
  50 function prepare_config(config)
  51 {
  52         config.config_data = readfile(config.config);
  53
  54         return { config: config };
  55 }
  56
  57 function set_config(phy_name, config_list)
  58 {
  59         let phy = wpas.data.config[phy_name];
  60
  61         if (!phy) {
  62                 phy = vlist_new(iface_cb, false);
  63                 wpas.data.config[phy_name] = phy;
  64         }
  65
  66         let values = [];
  67         for (let config in config_list)
  68                 push(values, [ config.iface, prepare_config(config) ]);
  69
  70         phy.update(values);
  71 }
  72
  73 function start_pending(phy_name)
  74 {
  75         let phy = wpas.data.config[phy_name];
  76
  77         for (let ifname in phy.data)
  78                 iface_start(phy_name, phy.data[ifname]);
  79 }
  80
  81 let main_obj = {
  82         phy_set_state: {
  83                 args: {
  84                         phy: "",
  85                         stop: true,
  86                 },
  87                 call: function(req) {
  88                         if (!req.args.phy || req.args.stop == null)
  89                                 return libubus.STATUS_INVALID_ARGUMENT;
  90
  91                         let phy = wpas.data.config[req.args.phy];
  92                         if (!phy)
  93                                 return libubus.STATUS_NOT_FOUND;
  94
  95                         try {
  96                                 if (req.args.stop) {
  97                                         for (let ifname in phy.data)
  98                                                 iface_stop(phy.data[ifname]);
  99                                 } else {
 100                                         start_pending(req.args.phy);
 101                                 }
 102                         } catch (e) {
 103                                 wpas.printf(`Error chaging state: ${e}\n${e.stacktrace[0].context}`);
 104                                 return libubus.STATUS_INVALID_ARGUMENT;
 105                         }
 106                         return 0;
 107                 }
 108         },
 109         config_set: {
 110                 args: {
 111                         phy: "",
 112                         config: [],
 113                         defer: true,
 114                 },
 115                 call: function(req) {
 116                         if (!req.args.phy)
 117                                 return libubus.STATUS_INVALID_ARGUMENT;
 118
 119                         try {
 120                                 if (req.args.config)
 121                                         set_config(req.args.phy, req.args.config);
 122
 123                                 if (!req.args.defer)
 124                                         start_pending(req.args.phy);
 125                         } catch (e) {
 126                                 wpas.printf(`Error loading config: ${e}\n${e.stacktrace[0].context}`);
 127                                 return libubus.STATUS_INVALID_ARGUMENT;
 128                         }
 129
 130                         return {
 131                                 pid: wpas.getpid()
 132                         };
 133                 }
 134         },
 135         config_add: {
 136                 args: {
 137                         driver: "",
 138                         iface: "",
 139                         bridge: "",
 140                         hostapd_ctrl: "",
 141                         ctrl: "",
 142                         config: "",
 143                 },
 144                 call: function(req) {
 145                         if (!req.args.iface || !req.args.config)
 146                                 return libubus.STATUS_INVALID_ARGUMENT;
 147
 148                         if (wpas.add_iface(req.args) < 0)
 149                                 return libubus.STATUS_INVALID_ARGUMENT;
 150
 151                         return {
 152                                 pid: wpas.getpid()
 153                         };
 154                 }
 155         },
 156         config_remove: {
 157                 args: {
 158                         iface: ""
 159                 },
 160                 call: function(req) {
 161                         if (!req.args.iface)
 162                                 return libubus.STATUS_INVALID_ARGUMENT;
 163
 164                         wpas.remove_iface(req.args.iface);
 165                         return 0;
 166                 }
 167         },
 168 };
 169
 170 wpas.data.ubus = ubus;
 171 wpas.data.obj = ubus.publish("wpa_supplicant", main_obj);
 172
 173 function iface_event(type, name, data) {
 174         let ubus = wpas.data.ubus;
 175
 176         data ??= {};
 177         data.name = name;
 178         wpas.data.obj.notify(`iface.${type}`, data, null, null, null, -1);
 179         ubus.call("service", "event", { type: `wpa_supplicant.${name}.${type}`, data: {} });
 180 }
 181
 182 function iface_hostapd_notify(phy, ifname, iface, state)
 183 {
 184         let ubus = wpas.data.ubus;
 185         let status = iface.status();
 186         let msg = { phy: phy };
 187
 188         switch (state) {
 189         case "DISCONNECTED":
 190         case "AUTHENTICATING":
 191                 msg.up = false;
 192                 break;
 193         case "INTERFACE_DISABLED":
 194         case "INACTIVE":
 195                 msg.up = true;
 196                 break;
 197         case "COMPLETED":
 198                 msg.up = true;
 199                 msg.frequency = status.frequency;
 200                 msg.sec_chan_offset = status.sec_chan_offset;
 201                 break;
 202         default:
 203                 return;
 204         }
 205
 206         ubus.call("hostapd", "apsta_state", msg);
 207 }
 208
 209 function iface_channel_switch(phy, ifname, iface, info)
 210 {
 211         let msg = {
 212                 phy: phy,
 213                 up: true,
 214                 csa: true,
 215                 csa_count: info.csa_count ? info.csa_count - 1 : 0,
 216                 frequency: info.frequency,
 217                 sec_chan_offset: info.sec_chan_offset,
 218         };
 219         ubus.call("hostapd", "apsta_state", msg);
 220 }
 221
 222 return {
 223         shutdown: function() {
 224                 for (let phy in wpas.data.config)
 225                         set_config(phy, []);
 226                 wpas.ubus.disconnect();
 227         },
 228         iface_add: function(name, obj) {
 229                 iface_event("add", name);
 230         },
 231         iface_remove: function(name, obj) {
 232                 iface_event("remove", name);
 233         },
 234         state: function(ifname, iface, state) {
 235                 let phy = wpas.data.iface_phy[ifname];
 236                 if (!phy) {
 237                         wpas.printf(`no PHY for ifname ${ifname}`);
 238                         return;
 239                 }
 240
 241                 iface_hostapd_notify(phy, ifname, iface, state);
 242         },
 243         event: function(ifname, iface, ev, info) {
 244                 let phy = wpas.data.iface_phy[ifname];
 245                 if (!phy) {
 246                         wpas.printf(`no PHY for ifname ${ifname}`);
 247                         return;
 248                 }
 249
 250                 if (ev == "CH_SWITCH_STARTED")
 251                         iface_channel_switch(phy, ifname, iface, info);
 252         }
 253 };