wireless.c

   1 /*
   2  * netifd - network interface daemon
   3  * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14 #include <signal.h>
  15 #include "netifd.h"
  16 #include "wireless.h"
  17 #include "handler.h"
  18 #include "ubus.h"
  19
  20 #define WIRELESS_SETUP_RETRY    3
  21
  22 struct vlist_tree wireless_devices;
  23 struct avl_tree wireless_drivers;
  24 static struct blob_buf b;
  25 static int drv_fd;
  26 static LIST_HEAD(handlers);
  27 static bool handler_pending;
  28
  29 enum {
  30         WDEV_ATTR_DISABLED,
  31         WDEV_ATTR_RECONF,
  32         WDEV_ATTR_SERIALIZE,
  33         __WDEV_ATTR_MAX,
  34 };
  35
  36 static const struct blobmsg_policy wdev_policy[__WDEV_ATTR_MAX] = {
  37         [WDEV_ATTR_DISABLED] = { .name = "disabled", .type = BLOBMSG_TYPE_BOOL },
  38         [WDEV_ATTR_RECONF] = { .name = "reconf", .type = BLOBMSG_TYPE_BOOL },
  39         [WDEV_ATTR_SERIALIZE] = { .name = "serialize", .type = BLOBMSG_TYPE_BOOL },
  40 };
  41
  42 static const struct uci_blob_param_list wdev_param = {
  43         .n_params = ARRAY_SIZE(wdev_policy),
  44         .params = wdev_policy,
  45 };
  46
  47 enum {
  48         VIF_ATTR_DISABLED,
  49         VIF_ATTR_NETWORK,
  50         VIF_ATTR_ISOLATE,
  51         VIF_ATTR_MODE,
  52         __VIF_ATTR_MAX,
  53 };
  54
  55 static const struct blobmsg_policy vif_policy[__VIF_ATTR_MAX] = {
  56         [VIF_ATTR_DISABLED] = { .name = "disabled", .type = BLOBMSG_TYPE_BOOL },
  57         [VIF_ATTR_NETWORK] = { .name = "network", .type = BLOBMSG_TYPE_ARRAY },
  58         [VIF_ATTR_ISOLATE] = { .name = "isolate", .type = BLOBMSG_TYPE_BOOL },
  59         [VIF_ATTR_MODE] = { .name = "mode", .type = BLOBMSG_TYPE_STRING },
  60 };
  61
  62 static const struct uci_blob_param_list vif_param = {
  63         .n_params = ARRAY_SIZE(vif_policy),
  64         .params = vif_policy,
  65 };
  66
  67 enum {
  68         VLAN_ATTR_DISABLED,
  69         VLAN_ATTR_NETWORK,
  70         VLAN_ATTR_ISOLATE,
  71         __VLAN_ATTR_MAX,
  72 };
  73
  74 static const struct blobmsg_policy vlan_policy[__VLAN_ATTR_MAX] = {
  75         [VLAN_ATTR_DISABLED] = { .name = "disabled", .type = BLOBMSG_TYPE_BOOL },
  76         [VLAN_ATTR_NETWORK] = { .name = "network", .type = BLOBMSG_TYPE_ARRAY },
  77         [VLAN_ATTR_ISOLATE] = { .name = "isolate", .type = BLOBMSG_TYPE_BOOL },
  78 };
  79
  80 static const struct uci_blob_param_list vlan_param = {
  81         .n_params = ARRAY_SIZE(vlan_policy),
  82         .params = vlan_policy,
  83 };
  84
  85 enum {
  86         STA_ATTR_DISABLED,
  87         __STA_ATTR_MAX,
  88 };
  89
  90 static const struct blobmsg_policy sta_policy[__STA_ATTR_MAX] = {
  91         [STA_ATTR_DISABLED] = { .name = "disabled", .type = BLOBMSG_TYPE_BOOL },
  92 };
  93
  94 static const struct uci_blob_param_list station_param = {
  95         .n_params = ARRAY_SIZE(sta_policy),
  96         .params = sta_policy,
  97 };
  98
  99 static void
 100 wireless_handler_stop(struct wireless_device *wdev)
 101 {
 102         if (wdev->handler_pending) {
 103                 wdev->handler_pending = false;
 104                 list_del(&wdev->handler);
 105         }
 106 }
 107
 108 static void
 109 put_container(struct blob_buf *buf, struct blob_attr *attr, const char *name)
 110 {
 111         void *c = blobmsg_open_table(buf, name);
 112         blob_put_raw(buf, blob_data(attr), blob_len(attr));
 113         blobmsg_close_table(buf, c);
 114 }
 115
 116 static void
 117 vif_config_add_bridge(struct blob_buf *buf, struct blob_attr *networks, bool prepare)
 118 {
 119         struct interface *iface;
 120         struct device *dev = NULL;
 121         struct blob_attr *cur;
 122         const char *network;
 123         int rem;
 124
 125         if (!networks)
 126                 return;
 127
 128         blobmsg_for_each_attr(cur, networks, rem) {
 129                 network = blobmsg_data(cur);
 130
 131                 iface = vlist_find(&interfaces, network, iface, node);
 132                 if (!iface)
 133                         continue;
 134
 135                 dev = iface->main_dev.dev;
 136                 if (!dev)
 137                         return;
 138
 139                 if (!dev->type->bridge_capability)
 140                         return;
 141         }
 142
 143         if (!dev)
 144                 return;
 145
 146         if (dev->hotplug_ops && dev->hotplug_ops->prepare)
 147                 dev->hotplug_ops->prepare(dev);
 148
 149         blobmsg_add_string(buf, "bridge", dev->ifname);
 150
 151         if (dev->settings.flags & DEV_OPT_MULTICAST_TO_UNICAST)
 152                 blobmsg_add_u8(buf, "multicast_to_unicast",
 153                                dev->settings.multicast_to_unicast);
 154 }
 155
 156 static void
 157 prepare_config(struct wireless_device *wdev, struct blob_buf *buf, bool up)
 158 {
 159         struct wireless_interface *vif;
 160         struct wireless_vlan *vlan;
 161         struct wireless_station *sta;
 162         void *l, *i, *j, *k;
 163
 164         blob_buf_init(&b, 0);
 165         put_container(&b, wdev->config, "config");
 166         if (wdev->data)
 167                 blobmsg_add_blob(&b, wdev->data);
 168
 169         l = blobmsg_open_table(&b, "interfaces");
 170         vlist_for_each_element(&wdev->interfaces, vif, node) {
 171                 i = blobmsg_open_table(&b, vif->name);
 172                 vif_config_add_bridge(&b, vif->network, up);
 173                 put_container(&b, vif->config, "config");
 174                 if (vif->data)
 175                         blobmsg_add_blob(&b, vif->data);
 176
 177                 j = blobmsg_open_table(&b, "vlans");
 178                 vlist_for_each_element(&wdev->vlans, vlan, node) {
 179                         if (strcmp(vlan->vif, vif->name))
 180                                 continue;
 181                         k = blobmsg_open_table(&b, vlan->name);
 182                         vif_config_add_bridge(&b, vlan->network, up);
 183                         put_container(&b, vlan->config, "config");
 184                         if (vlan->data)
 185                                 blobmsg_add_blob(&b, vlan->data);
 186                         blobmsg_close_table(&b, k);
 187                 }
 188                 blobmsg_close_table(&b, j);
 189
 190                 j = blobmsg_open_table(&b, "stas");
 191                 vlist_for_each_element(&wdev->stations, sta, node) {
 192                         if (strcmp(sta->vif, vif->name))
 193                                 continue;
 194                         k = blobmsg_open_table(&b, sta->name);
 195                         put_container(&b, sta->config, "config");
 196                         if (sta->data)
 197                                 blobmsg_add_blob(&b, sta->data);
 198                         blobmsg_close_table(&b, k);
 199                 }
 200                 blobmsg_close_table(&b, j);
 201                 blobmsg_close_table(&b, i);
 202         }
 203         blobmsg_close_table(&b, l);
 204
 205 }
 206
 207 static bool
 208 wireless_process_check(struct wireless_process *proc)
 209 {
 210         return check_pid_path(proc->pid, proc->exe);
 211 }
 212
 213 static void
 214 wireless_complete_kill_request(struct wireless_device *wdev)
 215 {
 216         if (!wdev->kill_request)
 217                 return;
 218
 219         ubus_complete_deferred_request(ubus_ctx, wdev->kill_request, 0);
 220         free(wdev->kill_request);
 221         wdev->kill_request = NULL;
 222 }
 223
 224 static void
 225 wireless_process_free(struct wireless_device *wdev, struct wireless_process *proc)
 226 {
 227         D(WIRELESS, "Wireless device '%s' free pid %d\n", wdev->name, proc->pid);
 228         list_del(&proc->list);
 229         free(proc);
 230
 231         if (list_empty(&wdev->script_proc))
 232                 wireless_complete_kill_request(wdev);
 233 }
 234
 235 static void
 236 wireless_close_script_proc_fd(struct wireless_device *wdev)
 237 {
 238         if (wdev->script_proc_fd.fd < 0)
 239                 return;
 240
 241         uloop_fd_delete(&wdev->script_proc_fd);
 242         close(wdev->script_proc_fd.fd);
 243         wdev->script_proc_fd.fd = -1;
 244 }
 245
 246 static void
 247 wireless_process_kill_all(struct wireless_device *wdev, int signal, bool free)
 248 {
 249         struct wireless_process *proc, *tmp;
 250
 251         list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
 252                 bool check = wireless_process_check(proc);
 253
 254                 if (check) {
 255                         D(WIRELESS, "Wireless device '%s' kill pid %d\n", wdev->name, proc->pid);
 256                         kill(proc->pid, signal);
 257                 }
 258
 259                 if (free || !check)
 260                         wireless_process_free(wdev, proc);
 261         }
 262
 263         if (free)
 264                 wireless_close_script_proc_fd(wdev);
 265 }
 266
 267 static void
 268 wireless_device_free_state(struct wireless_device *wdev)
 269 {
 270         struct wireless_interface *vif;
 271         struct wireless_vlan *vlan;
 272         struct wireless_station *sta;
 273
 274         wireless_handler_stop(wdev);
 275         uloop_timeout_cancel(&wdev->script_check);
 276         uloop_timeout_cancel(&wdev->timeout);
 277         wireless_complete_kill_request(wdev);
 278         free(wdev->data);
 279         wdev->data = NULL;
 280         vlist_for_each_element(&wdev->interfaces, vif, node) {
 281                 free(vif->data);
 282                 vif->data = NULL;
 283                 vif->ifname = NULL;
 284         }
 285         vlist_for_each_element(&wdev->vlans, vlan, node) {
 286                 free(vlan->data);
 287                 vlan->data = NULL;
 288                 vlan->ifname = NULL;
 289         }
 290         vlist_for_each_element(&wdev->stations, sta, node) {
 291                 free(sta->data);
 292                 sta->data = NULL;
 293         }
 294 }
 295
 296 static void wireless_interface_handle_link(struct wireless_interface *vif, bool up)
 297 {
 298         struct interface *iface;
 299         struct blob_attr *cur;
 300         const char *network;
 301         int rem;
 302
 303         if (!vif->network || !vif->ifname)
 304                 return;
 305
 306         if (up) {
 307                 struct device *dev = device_get(vif->ifname, 2);
 308                 if (dev) {
 309                         dev->wireless_isolate = vif->isolate;
 310                         dev->wireless = true;
 311                         dev->wireless_ap = vif->ap_mode;
 312                 }
 313         }
 314
 315         blobmsg_for_each_attr(cur, vif->network, rem) {
 316                 network = blobmsg_data(cur);
 317
 318                 iface = vlist_find(&interfaces, network, iface, node);
 319                 if (!iface)
 320                         continue;
 321
 322                 interface_handle_link(iface, vif->ifname, up, true);
 323         }
 324 }
 325
 326 static void wireless_vlan_handle_link(struct wireless_vlan *vlan, bool up)
 327 {
 328         struct interface *iface;
 329         struct blob_attr *cur;
 330         const char *network;
 331         int rem;
 332
 333         if (!vlan->network || !vlan->ifname)
 334                 return;
 335
 336         if (up) {
 337                 struct device *dev = device_get(vlan->ifname, 2);
 338                 if (dev) {
 339                         dev->wireless_isolate = vlan->isolate;
 340                         dev->wireless = true;
 341                         dev->wireless_ap = true;
 342                 }
 343         }
 344
 345         blobmsg_for_each_attr(cur, vlan->network, rem) {
 346                 network = blobmsg_data(cur);
 347
 348                 iface = vlist_find(&interfaces, network, iface, node);
 349                 if (!iface)
 350                         continue;
 351
 352                 interface_handle_link(iface, vlan->ifname, up, true);
 353         }
 354 }
 355
 356 static void
 357 wireless_device_setup_cancel(struct wireless_device *wdev)
 358 {
 359         if (wdev->cancel)
 360                 return;
 361
 362         wireless_handler_stop(wdev);
 363         D(WIRELESS, "Cancel wireless device '%s' setup\n", wdev->name);
 364         wdev->cancel = true;
 365         uloop_timeout_set(&wdev->timeout, 10 * 1000);
 366 }
 367
 368 static void
 369 wireless_device_run_handler(struct wireless_device *wdev, bool up)
 370 {
 371         const char *action = up ? "setup" : "teardown";
 372         const char *argv[6];
 373         char *config;
 374         int i = 0;
 375         int fds[2] = { -1, -1 };
 376
 377         wireless_handler_stop(wdev);
 378
 379         if (handler_pending && wdev->serialize) {
 380                 wdev->handler_action = up;
 381                 wdev->handler_pending = true;
 382                 list_add_tail(&wdev->handler, &handlers);
 383                 return;
 384         }
 385         if (wdev->serialize)
 386                 handler_pending = true;
 387
 388         D(WIRELESS, "Wireless device '%s' run %s handler\n", wdev->name, action);
 389         if (!up && wdev->prev_config) {
 390                 config = blobmsg_format_json(wdev->prev_config, true);
 391                 free(wdev->prev_config);
 392                 wdev->prev_config = NULL;
 393         } else {
 394                 prepare_config(wdev, &b, up);
 395                 config = blobmsg_format_json(b.head, true);
 396         }
 397
 398         argv[i++] = wdev->drv->script;
 399         argv[i++] = wdev->drv->name;
 400         argv[i++] = action;
 401         argv[i++] = wdev->name;
 402         argv[i++] = config;
 403         argv[i] = NULL;
 404
 405         if (up && pipe(fds) == 0) {
 406                 wdev->script_proc_fd.fd = fds[0];
 407                 uloop_fd_add(&wdev->script_proc_fd,
 408                              ULOOP_READ | ULOOP_EDGE_TRIGGER);
 409         }
 410
 411         netifd_start_process(argv, NULL, &wdev->script_task);
 412
 413         if (fds[1] >= 0)
 414                 close(fds[1]);
 415
 416         free(config);
 417 }
 418
 419 static void
 420 wireless_handler_next(void)
 421 {
 422         struct wireless_device *wdev;
 423
 424         if (handler_pending)
 425                 return;
 426         if (list_empty(&handlers))
 427                 return;
 428         wdev = list_first_entry(&handlers, struct wireless_device, handler);
 429         list_del(&wdev->handler);
 430         wdev->handler_pending = false;
 431         wireless_device_run_handler(wdev, wdev->handler_action);
 432 }
 433
 434 static void
 435 __wireless_device_set_up(struct wireless_device *wdev, int force)
 436 {
 437         if (wdev->disabled)
 438                 return;
 439
 440         if (wdev->retry_setup_failed)
 441                 return;
 442
 443         if (!wdev->autostart)
 444                 return;
 445
 446         if (!force && (wdev->state != IFS_DOWN || config_init))
 447                 return;
 448
 449         free(wdev->prev_config);
 450         wdev->prev_config = NULL;
 451         wdev->state = IFS_SETUP;
 452         wireless_device_run_handler(wdev, true);
 453 }
 454
 455 static void
 456 wireless_device_free(struct wireless_device *wdev)
 457 {
 458         wireless_handler_stop(wdev);
 459         vlist_flush_all(&wdev->interfaces);
 460         vlist_flush_all(&wdev->vlans);
 461         vlist_flush_all(&wdev->stations);
 462         avl_delete(&wireless_devices.avl, &wdev->node.avl);
 463         free(wdev->config);
 464         free(wdev->prev_config);
 465         free(wdev);
 466 }
 467
 468 static void
 469 wdev_handle_config_change(struct wireless_device *wdev)
 470 {
 471         enum interface_config_state state = wdev->config_state;
 472
 473         switch(state) {
 474         case IFC_NORMAL:
 475         case IFC_RELOAD:
 476                 __wireless_device_set_up(wdev, 0);
 477
 478                 wdev->config_state = IFC_NORMAL;
 479                 break;
 480         case IFC_REMOVE:
 481                 wireless_device_free(wdev);
 482                 break;
 483         }
 484 }
 485
 486 static void
 487 wireless_device_mark_down(struct wireless_device *wdev)
 488 {
 489         struct wireless_interface *vif;
 490         struct wireless_vlan *vlan;
 491
 492         D(WIRELESS, "Wireless device '%s' is now down\n", wdev->name);
 493
 494         vlist_for_each_element(&wdev->vlans, vlan, node)
 495                 wireless_vlan_handle_link(vlan, false);
 496
 497         vlist_for_each_element(&wdev->interfaces, vif, node)
 498                 wireless_interface_handle_link(vif, false);
 499
 500         wireless_process_kill_all(wdev, SIGTERM, true);
 501
 502         wdev->cancel = false;
 503         wdev->state = IFS_DOWN;
 504         wireless_device_free_state(wdev);
 505         wdev_handle_config_change(wdev);
 506 }
 507
 508 static void
 509 wireless_device_setup_timeout(struct uloop_timeout *timeout)
 510 {
 511         struct wireless_device *wdev = container_of(timeout, struct wireless_device, timeout);
 512
 513         if (wdev->handler_pending) {
 514                 wdev->handler_pending = false;
 515                 list_del(&wdev->handler);
 516         }
 517         netifd_kill_process(&wdev->script_task);
 518         wdev->script_task.cb(&wdev->script_task, -1);
 519         wireless_device_mark_down(wdev);
 520 }
 521
 522 void
 523 wireless_device_set_up(struct wireless_device *wdev)
 524 {
 525         wdev->retry = WIRELESS_SETUP_RETRY;
 526         wdev->autostart = true;
 527         __wireless_device_set_up(wdev, 0);
 528 }
 529
 530 void
 531 wireless_device_reconf(struct wireless_device *wdev)
 532 {
 533         wdev->retry = WIRELESS_SETUP_RETRY;
 534         wdev->autostart = true;
 535         __wireless_device_set_up(wdev, wdev->reconf && (wdev->state == IFS_UP));
 536 }
 537
 538 static void
 539 __wireless_device_set_down(struct wireless_device *wdev)
 540 {
 541         if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN)
 542                 return;
 543
 544         if (wdev->script_task.uloop.pending) {
 545                 wireless_device_setup_cancel(wdev);
 546                 return;
 547         }
 548
 549         wdev->state = IFS_TEARDOWN;
 550         wireless_device_run_handler(wdev, false);
 551 }
 552
 553 static void
 554 wireless_device_mark_up(struct wireless_device *wdev)
 555 {
 556         struct wireless_interface *vif;
 557         struct wireless_vlan *vlan;
 558
 559         if (wdev->cancel) {
 560                 wdev->cancel = false;
 561                 __wireless_device_set_down(wdev);
 562                 return;
 563         }
 564
 565         D(WIRELESS, "Wireless device '%s' is now up\n", wdev->name);
 566         wdev->state = IFS_UP;
 567         vlist_for_each_element(&wdev->interfaces, vif, node)
 568                 wireless_interface_handle_link(vif, true);
 569         vlist_for_each_element(&wdev->vlans, vlan, node)
 570                 wireless_vlan_handle_link(vlan, true);
 571 }
 572
 573 static void
 574 wireless_device_retry_setup(struct wireless_device *wdev)
 575 {
 576         if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN || wdev->cancel)
 577                 return;
 578
 579         if (--wdev->retry < 0)
 580                 wdev->retry_setup_failed = true;
 581
 582         __wireless_device_set_down(wdev);
 583 }
 584
 585 static void
 586 wireless_device_script_task_cb(struct netifd_process *proc, int ret)
 587 {
 588         struct wireless_device *wdev = container_of(proc, struct wireless_device, script_task);
 589
 590         switch (wdev->state) {
 591         case IFS_SETUP:
 592                 wireless_device_retry_setup(wdev);
 593                 break;
 594         case IFS_TEARDOWN:
 595                 wireless_device_mark_down(wdev);
 596                 break;
 597         default:
 598                 break;
 599         }
 600
 601         if (wdev->serialize) {
 602                 handler_pending = false;
 603                 wireless_handler_next();
 604         }
 605 }
 606
 607 void
 608 wireless_device_set_down(struct wireless_device *wdev)
 609 {
 610         wdev->retry_setup_failed = false;
 611         wdev->autostart = false;
 612         __wireless_device_set_down(wdev);
 613 }
 614
 615 static void
 616 wdev_set_config_state(struct wireless_device *wdev, enum interface_config_state s)
 617 {
 618         if (wdev->config_state != IFC_NORMAL)
 619                 return;
 620
 621         wdev->config_state = s;
 622         if (wdev->state == IFS_DOWN)
 623                 wdev_handle_config_change(wdev);
 624         else if (!wdev->reconf || wdev->state != IFS_UP)
 625                 __wireless_device_set_down(wdev);
 626 }
 627
 628 static void
 629 wdev_prepare_prev_config(struct wireless_device *wdev)
 630 {
 631         if (wdev->prev_config)
 632                 return;
 633
 634         prepare_config(wdev, &b, false);
 635         wdev->prev_config = blob_memdup(b.head);
 636 }
 637
 638 static void
 639 wdev_change_config(struct wireless_device *wdev, struct wireless_device *wd_new)
 640 {
 641         struct blob_attr *new_config = wd_new->config;
 642         bool disabled = wd_new->disabled;
 643
 644         free(wd_new);
 645
 646         wdev_prepare_prev_config(wdev);
 647         if (blob_attr_equal(wdev->config, new_config) && wdev->disabled == disabled)
 648                 return;
 649
 650         D(WIRELESS, "Update configuration of wireless device '%s'\n", wdev->name);
 651         free(wdev->config);
 652         wdev->config = blob_memdup(new_config);
 653         wdev->disabled = disabled;
 654         wdev->retry_setup_failed = false;
 655         wdev_set_config_state(wdev, IFC_RELOAD);
 656 }
 657
 658 static void
 659 wdev_create(struct wireless_device *wdev)
 660 {
 661         wdev->retry = WIRELESS_SETUP_RETRY;
 662         wdev->config = blob_memdup(wdev->config);
 663 }
 664
 665 static void
 666 wdev_update(struct vlist_tree *tree, struct vlist_node *node_new,
 667             struct vlist_node *node_old)
 668 {
 669         struct wireless_device *wd_old = container_of(node_old, struct wireless_device, node);
 670         struct wireless_device *wd_new = container_of(node_new, struct wireless_device, node);
 671
 672         if (wd_old && wd_new) {
 673                 D(WIRELESS, "Update wireless device '%s'\n", wd_old->name);
 674                 wdev_change_config(wd_old, wd_new);
 675         } else if (wd_old) {
 676                 D(WIRELESS, "Delete wireless device '%s'\n", wd_old->name);
 677                 wdev_set_config_state(wd_old, IFC_REMOVE);
 678         } else if (wd_new) {
 679                 D(WIRELESS, "Create wireless device '%s'\n", wd_new->name);
 680                 wdev_create(wd_new);
 681         }
 682 }
 683
 684 static void
 685 wireless_add_handler(const char *script, const char *name, json_object *obj)
 686 {
 687         struct wireless_driver *drv;
 688         char *name_str, *script_str;
 689         json_object *dev_config_obj, *iface_config_obj, *vlan_config_obj, *station_config_obj;
 690         struct uci_blob_param_list *dev_config, *iface_config, *vlan_config, *station_config;
 691
 692         dev_config_obj = json_get_field(obj, "device", json_type_array);
 693         iface_config_obj = json_get_field(obj, "iface", json_type_array);
 694         vlan_config_obj = json_get_field(obj, "vlan", json_type_array);
 695         station_config_obj = json_get_field(obj, "station", json_type_array);
 696
 697         if (!dev_config_obj || !iface_config_obj || !vlan_config_obj || !station_config_obj)
 698                 return;
 699
 700         drv = calloc_a(sizeof(*drv),
 701                 &dev_config, sizeof(*dev_config) + sizeof(void *),
 702                 &iface_config, sizeof(*iface_config) + sizeof(void *),
 703                 &vlan_config, sizeof(*vlan_config) + sizeof(void *),
 704                 &station_config, sizeof(*station_config) + sizeof(void *),
 705                 &name_str, strlen(name) + 1,
 706                 &script_str, strlen(script) + 1);
 707
 708         drv->name = strcpy(name_str, name);
 709         drv->script = strcpy(script_str, script);
 710
 711         dev_config->n_next = 1;
 712         dev_config->next[0] = &wdev_param;
 713         drv->device.config = dev_config;
 714
 715         iface_config->n_next = 1;
 716         iface_config->next[0] = &vif_param;
 717         drv->interface.config = iface_config;
 718
 719         vlan_config->n_next = 1;
 720         vlan_config->next[0] = &vlan_param;
 721         drv->vlan.config = vlan_config;
 722
 723         station_config->n_next = 1;
 724         station_config->next[0] = &station_param;
 725         drv->station.config = station_config;
 726
 727         drv->device.buf = netifd_handler_parse_config(drv->device.config, dev_config_obj);
 728         drv->interface.buf = netifd_handler_parse_config(drv->interface.config, iface_config_obj);
 729         drv->vlan.buf = netifd_handler_parse_config(drv->vlan.config, vlan_config_obj);
 730         drv->station.buf = netifd_handler_parse_config(drv->station.config, station_config_obj);
 731
 732         drv->node.key = drv->name;
 733         avl_insert(&wireless_drivers, &drv->node);
 734         D(WIRELESS, "Add handler for script %s: %s\n", script, name);
 735 }
 736
 737 void wireless_init(void)
 738 {
 739         vlist_init(&wireless_devices, avl_strcmp, wdev_update);
 740         wireless_devices.keep_old = true;
 741         wireless_devices.no_delete = true;
 742
 743         avl_init(&wireless_drivers, avl_strcmp, false, NULL);
 744         drv_fd = netifd_open_subdir("wireless");
 745         if (drv_fd < 0)
 746                 return;
 747
 748         netifd_init_script_handlers(drv_fd, wireless_add_handler);
 749 }
 750
 751 static void
 752 wireless_interface_init_config(struct wireless_interface *vif)
 753 {
 754         struct blob_attr *tb[__VIF_ATTR_MAX];
 755         struct blob_attr *cur;
 756
 757         vif->network = NULL;
 758         blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(vif->config), blob_len(vif->config));
 759
 760         if ((cur = tb[VIF_ATTR_NETWORK]))
 761                 vif->network = cur;
 762
 763         cur = tb[VIF_ATTR_ISOLATE];
 764         if (cur)
 765                 vif->isolate = blobmsg_get_bool(cur);
 766
 767         cur = tb[VIF_ATTR_MODE];
 768         if (cur)
 769                 vif->ap_mode = !strcmp(blobmsg_get_string(cur), "ap");
 770 }
 771
 772 static void
 773 vif_update(struct vlist_tree *tree, struct vlist_node *node_new,
 774            struct vlist_node *node_old)
 775 {
 776         struct wireless_interface *vif_old = container_of(node_old, struct wireless_interface, node);
 777         struct wireless_interface *vif_new = container_of(node_new, struct wireless_interface, node);
 778         struct wireless_device *wdev;
 779
 780         if (vif_old)
 781                 wdev = vif_old->wdev;
 782         else
 783                 wdev = vif_new->wdev;
 784
 785         if (vif_old && vif_new) {
 786                 free((void *) vif_old->section);
 787                 vif_old->section = strdup(vif_new->section);
 788                 if (blob_attr_equal(vif_old->config, vif_new->config)) {
 789                         free(vif_new);
 790                         return;
 791                 }
 792
 793                 D(WIRELESS, "Update wireless interface %s on device %s\n", vif_new->name, wdev->name);
 794                 wireless_interface_handle_link(vif_old, false);
 795                 free(vif_old->config);
 796                 vif_old->config = blob_memdup(vif_new->config);
 797                 vif_old->isolate = vif_new->isolate;
 798                 vif_old->ap_mode = vif_new->ap_mode;
 799                 wireless_interface_init_config(vif_old);
 800                 free(vif_new);
 801         } else if (vif_new) {
 802                 D(WIRELESS, "Create new wireless interface %s on device %s\n", vif_new->name, wdev->name);
 803                 vif_new->section = strdup(vif_new->section);
 804                 vif_new->config = blob_memdup(vif_new->config);
 805                 wireless_interface_init_config(vif_new);
 806         } else if (vif_old) {
 807                 D(WIRELESS, "Delete wireless interface %s on device %s\n", vif_old->name, wdev->name);
 808                 wireless_interface_handle_link(vif_old, false);
 809                 free((void *) vif_old->section);
 810                 free(vif_old->config);
 811                 free(vif_old);
 812         }
 813
 814         wdev_set_config_state(wdev, IFC_RELOAD);
 815 }
 816
 817 static void
 818 wireless_vlan_init_config(struct wireless_vlan *vlan)
 819 {
 820         struct blob_attr *tb[__VLAN_ATTR_MAX];
 821         struct blob_attr *cur;
 822
 823         vlan->network = NULL;
 824         blobmsg_parse(vlan_policy, __VLAN_ATTR_MAX, tb, blob_data(vlan->config), blob_len(vlan->config));
 825
 826         if ((cur = tb[VLAN_ATTR_NETWORK]))
 827                 vlan->network = cur;
 828
 829         cur = tb[VLAN_ATTR_ISOLATE];
 830         if (cur)
 831                 vlan->isolate = blobmsg_get_bool(cur);
 832 }
 833
 834 static void
 835 vlan_update(struct vlist_tree *tree, struct vlist_node *node_new,
 836             struct vlist_node *node_old)
 837 {
 838         struct wireless_vlan *vlan_old = container_of(node_old, struct wireless_vlan, node);
 839         struct wireless_vlan *vlan_new = container_of(node_new, struct wireless_vlan, node);
 840         struct wireless_device *wdev;
 841
 842         if (vlan_old)
 843                 wdev = vlan_old->wdev;
 844         else
 845                 wdev = vlan_new->wdev;
 846
 847         if (vlan_old && vlan_new) {
 848                 free((void *) vlan_old->section);
 849                 vlan_old->section = strdup(vlan_new->section);
 850                 if (blob_attr_equal(vlan_old->config, vlan_new->config)) {
 851                         free(vlan_new);
 852                         return;
 853                 }
 854
 855                 D(WIRELESS, "Update wireless vlan %s on device %s\n", vlan_new->name, wdev->name);
 856                 wireless_vlan_handle_link(vlan_old, false);
 857                 free(vlan_old->config);
 858                 vlan_old->config = blob_memdup(vlan_new->config);
 859                 vlan_old->isolate = vlan_new->isolate;
 860                 wireless_vlan_init_config(vlan_old);
 861                 free(vlan_new);
 862         } else if (vlan_new) {
 863                 D(WIRELESS, "Create new wireless vlan %s on device %s\n", vlan_new->name, wdev->name);
 864                 vlan_new->section = strdup(vlan_new->section);
 865                 vlan_new->config = blob_memdup(vlan_new->config);
 866                 wireless_vlan_init_config(vlan_new);
 867         } else if (vlan_old) {
 868                 D(WIRELESS, "Delete wireless interface %s on device %s\n", vlan_old->name, wdev->name);
 869                 wireless_vlan_handle_link(vlan_old, false);
 870                 free((void *) vlan_old->section);
 871                 free(vlan_old->config);
 872                 free(vlan_old);
 873         }
 874
 875         wdev_set_config_state(wdev, IFC_RELOAD);
 876 }
 877
 878 static void
 879 station_update(struct vlist_tree *tree, struct vlist_node *node_new,
 880                struct vlist_node *node_old)
 881 {
 882         struct wireless_station *sta_old = container_of(node_old, struct wireless_station, node);
 883         struct wireless_station *sta_new = container_of(node_new, struct wireless_station, node);
 884         struct wireless_device *wdev;
 885
 886         if (sta_old)
 887                 wdev = sta_old->wdev;
 888         else
 889                 wdev = sta_new->wdev;
 890
 891         if (sta_old && sta_new) {
 892                 free((void *) sta_old->section);
 893                 sta_old->section = strdup(sta_new->section);
 894                 if (blob_attr_equal(sta_old->config, sta_new->config)) {
 895                         free(sta_new);
 896                         return;
 897                 }
 898
 899                 D(WIRELESS, "Update wireless station %s on device %s\n", sta_new->name, wdev->name);
 900                 free(sta_old->config);
 901                 sta_old->config = blob_memdup(sta_new->config);
 902                 free(sta_new);
 903         } else if (sta_new) {
 904                 D(WIRELESS, "Create new wireless station %s on device %s\n", sta_new->name, wdev->name);
 905                 sta_new->section = strdup(sta_new->section);
 906                 sta_new->config = blob_memdup(sta_new->config);
 907         } else if (sta_old) {
 908                 D(WIRELESS, "Delete wireless station %s on device %s\n", sta_old->name, wdev->name);
 909                 free((void *) sta_old->section);
 910                 free(sta_old->config);
 911                 free(sta_old);
 912         }
 913
 914         wdev_set_config_state(wdev, IFC_RELOAD);
 915 }
 916
 917 static void
 918 wireless_proc_poll_fd(struct uloop_fd *fd, unsigned int events)
 919 {
 920         struct wireless_device *wdev = container_of(fd, struct wireless_device, script_proc_fd);
 921         char buf[128];
 922
 923         while (1) {
 924                 int b = read(fd->fd, buf, sizeof(buf));
 925                 if (b < 0) {
 926                         if (errno == EINTR)
 927                                 continue;
 928
 929                         if (errno == EAGAIN)
 930                                 return;
 931
 932                         goto done;
 933                 }
 934
 935                 if (!b)
 936                         goto done;
 937         }
 938
 939 done:
 940         uloop_timeout_set(&wdev->script_check, 0);
 941         wireless_close_script_proc_fd(wdev);
 942 }
 943
 944 static void
 945 wireless_device_check_script_tasks(struct uloop_timeout *timeout)
 946 {
 947         struct wireless_device *wdev = container_of(timeout, struct wireless_device, script_check);
 948         struct wireless_process *proc, *tmp;
 949         bool restart = false;
 950
 951         list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
 952                 if (wireless_process_check(proc))
 953                         continue;
 954
 955                 D(WIRELESS, "Wireless device '%s' pid %d has terminated\n", wdev->name, proc->pid);
 956                 if (proc->required)
 957                         restart = true;
 958
 959                 wireless_process_free(wdev, proc);
 960         }
 961
 962         if (restart)
 963                 wireless_device_retry_setup(wdev);
 964         else
 965                 uloop_timeout_set(&wdev->script_check, 1000);
 966 }
 967
 968 void
 969 wireless_device_create(struct wireless_driver *drv, const char *name, struct blob_attr *data)
 970 {
 971         struct wireless_device *wdev;
 972         char *name_buf;
 973         struct blob_attr *tb[__WDEV_ATTR_MAX];
 974         struct blob_attr *cur;
 975
 976         blobmsg_parse(wdev_policy, __WDEV_ATTR_MAX, tb, blob_data(data), blob_len(data));
 977
 978         wdev = calloc_a(sizeof(*wdev), &name_buf, strlen(name) + 1);
 979
 980         cur = tb[WDEV_ATTR_DISABLED];
 981         wdev->disabled = cur && blobmsg_get_bool(cur);
 982
 983         wdev->drv = drv;
 984         wdev->state = IFS_DOWN;
 985         wdev->config_state = IFC_NORMAL;
 986         wdev->name = strcpy(name_buf, name);
 987         wdev->config = data;
 988         wdev->handler_pending = false;
 989
 990         cur = tb[WDEV_ATTR_SERIALIZE];
 991         wdev->serialize = cur && blobmsg_get_bool(cur);
 992
 993         cur = tb[WDEV_ATTR_RECONF];
 994         wdev->reconf = cur && blobmsg_get_bool(cur);
 995
 996         wdev->retry_setup_failed = false;
 997         wdev->autostart = true;
 998         INIT_LIST_HEAD(&wdev->script_proc);
 999         vlist_init(&wdev->interfaces, avl_strcmp, vif_update);
1000         wdev->interfaces.keep_old = true;
1001         vlist_init(&wdev->vlans, avl_strcmp, vlan_update);
1002         wdev->vlans.keep_old = true;
1003         vlist_init(&wdev->stations, avl_strcmp, station_update);
1004         wdev->stations.keep_old = true;
1005
1006         wdev->timeout.cb = wireless_device_setup_timeout;
1007         wdev->script_task.cb = wireless_device_script_task_cb;
1008         wdev->script_task.dir_fd = drv_fd;
1009         wdev->script_task.log_prefix = wdev->name;
1010
1011         wdev->script_proc_fd.fd = -1;
1012         wdev->script_proc_fd.cb = wireless_proc_poll_fd;
1013
1014         wdev->script_check.cb = wireless_device_check_script_tasks;
1015
1016         vlist_add(&wireless_devices, &wdev->node, wdev->name);
1017 }
1018
1019 void
1020 wireless_station_create(struct wireless_device *wdev, char *vif, struct blob_attr *data, const char *section)
1021 {
1022         struct wireless_station *sta;
1023         struct blob_attr *tb[__STA_ATTR_MAX];
1024         struct blob_attr *cur;
1025         char *name_buf, *vif_buf;
1026         char name[8];
1027
1028         blobmsg_parse(sta_policy, __STA_ATTR_MAX, tb, blob_data(data), blob_len(data));
1029
1030         cur = tb[STA_ATTR_DISABLED];
1031         if (cur && blobmsg_get_bool(cur))
1032                 return;
1033
1034         sprintf(name, "%d", wdev->vlan_idx++);
1035
1036         sta = calloc_a(sizeof(*sta),
1037                        &name_buf, strlen(name) + 1,
1038                        &vif_buf, strlen(vif) + 1);
1039         sta->name = strcpy(name_buf, name);
1040         sta->vif = strcpy(vif_buf, vif);
1041         sta->wdev = wdev;
1042         sta->config = data;
1043         sta->section = section;
1044
1045         vlist_add(&wdev->stations, &sta->node, sta->name);
1046 }
1047
1048 static void
1049 wireless_station_status(struct wireless_station *sta, struct blob_buf *b)
1050 {
1051         void *i;
1052
1053         i = blobmsg_open_table(b, NULL);
1054         if (sta->section)
1055                 blobmsg_add_string(b, "section", sta->section);
1056         put_container(b, sta->config, "config");
1057         blobmsg_close_table(b, i);
1058 }
1059
1060 void
1061 wireless_vlan_create(struct wireless_device *wdev, char *vif, struct blob_attr *data, const char *section)
1062 {
1063         struct wireless_vlan *vlan;
1064         struct blob_attr *tb[__VLAN_ATTR_MAX];
1065         struct blob_attr *cur;
1066         char *name_buf, *vif_buf;
1067         char name[8];
1068
1069         blobmsg_parse(vlan_policy, __VLAN_ATTR_MAX, tb, blob_data(data), blob_len(data));
1070
1071         cur = tb[VLAN_ATTR_DISABLED];
1072         if (cur && blobmsg_get_bool(cur))
1073                 return;
1074
1075         sprintf(name, "%d", wdev->vlan_idx++);
1076
1077         vlan = calloc_a(sizeof(*vlan),
1078                        &name_buf, strlen(name) + 1,
1079                        &vif_buf, strlen(vif) + 1);
1080         vlan->name = strcpy(name_buf, name);
1081         vlan->vif = strcpy(vif_buf, vif);
1082         vlan->wdev = wdev;
1083         vlan->config = data;
1084         vlan->section = section;
1085         vlan->isolate = false;
1086
1087         vlist_add(&wdev->vlans, &vlan->node, vlan->name);
1088 }
1089
1090 static void
1091 wireless_vlan_status(struct wireless_vlan *vlan, struct blob_buf *b)
1092 {
1093         void *i;
1094
1095         i = blobmsg_open_table(b, NULL);
1096         if (vlan->section)
1097                 blobmsg_add_string(b, "section", vlan->section);
1098         if (vlan->ifname)
1099                 blobmsg_add_string(b, "ifname", vlan->ifname);
1100         put_container(b, vlan->config, "config");
1101         blobmsg_close_table(b, i);
1102 }
1103
1104 struct wireless_interface* wireless_interface_create(struct wireless_device *wdev, struct blob_attr *data, const char *section)
1105 {
1106         struct wireless_interface *vif;
1107         struct blob_attr *tb[__VIF_ATTR_MAX];
1108         struct blob_attr *cur;
1109         char *name_buf;
1110         char name[8];
1111
1112         blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(data), blob_len(data));
1113
1114         cur = tb[VIF_ATTR_DISABLED];
1115         if (cur && blobmsg_get_bool(cur))
1116                 return NULL;
1117
1118         sprintf(name, "%d", wdev->vif_idx++);
1119
1120         vif = calloc_a(sizeof(*vif),
1121                        &name_buf, strlen(name) + 1);
1122         vif->name = strcpy(name_buf, name);
1123         vif->wdev = wdev;
1124         vif->config = data;
1125         vif->section = section;
1126         vif->isolate = false;
1127
1128         vlist_add(&wdev->interfaces, &vif->node, vif->name);
1129         return vif;
1130 }
1131
1132 static void
1133 wireless_interface_status(struct wireless_interface *iface, struct blob_buf *b)
1134 {
1135         struct wireless_vlan *vlan;
1136         struct wireless_station *sta;
1137         void *i, *j;
1138
1139         i = blobmsg_open_table(b, NULL);
1140         if (iface->section)
1141                 blobmsg_add_string(b, "section", iface->section);
1142         if (iface->ifname)
1143                 blobmsg_add_string(b, "ifname", iface->ifname);
1144         put_container(b, iface->config, "config");
1145         j = blobmsg_open_array(b, "vlans");
1146         vlist_for_each_element(&iface->wdev->vlans, vlan, node)
1147                 if (!strcmp(iface->name, vlan->vif))
1148                         wireless_vlan_status(vlan, b);
1149         blobmsg_close_array(b, j);
1150         j = blobmsg_open_array(b, "stations");
1151         vlist_for_each_element(&iface->wdev->stations, sta, node)
1152                 if (!strcmp(iface->name, sta->vif))
1153                         wireless_station_status(sta, b);
1154         blobmsg_close_array(b, j);
1155         blobmsg_close_table(b, i);
1156 }
1157
1158 void
1159 wireless_device_status(struct wireless_device *wdev, struct blob_buf *b)
1160 {
1161         struct wireless_interface *iface;
1162         void *c, *i;
1163
1164         c = blobmsg_open_table(b, wdev->name);
1165         blobmsg_add_u8(b, "up", wdev->state == IFS_UP);
1166         blobmsg_add_u8(b, "pending", wdev->state == IFS_SETUP || wdev->state == IFS_TEARDOWN);
1167         blobmsg_add_u8(b, "autostart", wdev->autostart);
1168         blobmsg_add_u8(b, "disabled", wdev->disabled);
1169         blobmsg_add_u8(b, "retry_setup_failed", wdev->retry_setup_failed);
1170         put_container(b, wdev->config, "config");
1171
1172         i = blobmsg_open_array(b, "interfaces");
1173         vlist_for_each_element(&wdev->interfaces, iface, node)
1174                 wireless_interface_status(iface, b);
1175         blobmsg_close_array(b, i);
1176         blobmsg_close_table(b, c);
1177 }
1178
1179 void
1180 wireless_device_get_validate(struct wireless_device *wdev, struct blob_buf *b)
1181 {
1182         struct uci_blob_param_list *p;
1183         void *c, *d;
1184         int i;
1185
1186         c = blobmsg_open_table(b, wdev->name);
1187
1188         d = blobmsg_open_table(b, "device");
1189         p = wdev->drv->device.config;
1190         for (i = 0; i < p->n_params; i++)
1191                 blobmsg_add_string(b, p->params[i].name, uci_get_validate_string(p, i));
1192         blobmsg_close_table(b, d);
1193
1194         d = blobmsg_open_table(b, "interface");
1195         p = wdev->drv->interface.config;
1196         for (i = 0; i < p->n_params; i++)
1197                 blobmsg_add_string(b, p->params[i].name, uci_get_validate_string(p, i));
1198         blobmsg_close_table(b, d);
1199
1200         blobmsg_close_table(b, c);
1201 }
1202
1203 static void
1204 wireless_interface_set_data(struct wireless_interface *vif)
1205 {
1206         enum {
1207                 VIF_DATA_IFNAME,
1208                 __VIF_DATA_MAX,
1209         };
1210         static const struct blobmsg_policy data_policy[__VIF_DATA_MAX] = {
1211                 [VIF_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
1212         };
1213         struct blob_attr *tb[__VIF_DATA_MAX];
1214         struct blob_attr *cur;
1215
1216         blobmsg_parse(data_policy, __VIF_DATA_MAX, tb,
1217                       blobmsg_data(vif->data), blobmsg_data_len(vif->data));
1218
1219         if ((cur = tb[VIF_DATA_IFNAME]))
1220                 vif->ifname = blobmsg_data(cur);
1221 }
1222
1223 static void
1224 wireless_vlan_set_data(struct wireless_vlan *vlan)
1225 {
1226         enum {
1227                 VLAN_DATA_IFNAME,
1228                 __VLAN_DATA_MAX,
1229         };
1230         static const struct blobmsg_policy data_policy[__VLAN_DATA_MAX] = {
1231                 [VLAN_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
1232         };
1233         struct blob_attr *tb[__VLAN_DATA_MAX];
1234         struct blob_attr *cur;
1235
1236         blobmsg_parse(data_policy, __VLAN_DATA_MAX, tb,
1237                       blobmsg_data(vlan->data), blobmsg_data_len(vlan->data));
1238
1239         if ((cur = tb[VLAN_DATA_IFNAME]))
1240                 vlan->ifname = blobmsg_data(cur);
1241 }
1242
1243 static int
1244 wireless_device_add_process(struct wireless_device *wdev, struct blob_attr *data)
1245 {
1246         enum {
1247                 PROC_ATTR_PID,
1248                 PROC_ATTR_EXE,
1249                 PROC_ATTR_REQUIRED,
1250                 __PROC_ATTR_MAX
1251         };
1252         static const struct blobmsg_policy proc_policy[__PROC_ATTR_MAX] = {
1253                 [PROC_ATTR_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 },
1254                 [PROC_ATTR_EXE] = { .name = "exe", .type = BLOBMSG_TYPE_STRING },
1255                 [PROC_ATTR_REQUIRED] = { .name = "required", .type = BLOBMSG_TYPE_BOOL },
1256         };
1257         struct blob_attr *tb[__PROC_ATTR_MAX];
1258         struct wireless_process *proc;
1259         char *name;
1260         int pid;
1261
1262         if (!data)
1263                 return UBUS_STATUS_INVALID_ARGUMENT;
1264
1265         blobmsg_parse(proc_policy, __PROC_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
1266         if (!tb[PROC_ATTR_PID] || !tb[PROC_ATTR_EXE])
1267                 return UBUS_STATUS_INVALID_ARGUMENT;
1268
1269         pid = blobmsg_get_u32(tb[PROC_ATTR_PID]);
1270         if (pid < 2)
1271                 return UBUS_STATUS_INVALID_ARGUMENT;
1272
1273         proc = calloc_a(sizeof(*proc),
1274                 &name, strlen(blobmsg_data(tb[PROC_ATTR_EXE])) + 1);
1275
1276         proc->pid = pid;
1277         proc->exe = strcpy(name, blobmsg_data(tb[PROC_ATTR_EXE]));
1278
1279         if (tb[PROC_ATTR_REQUIRED])
1280                 proc->required = blobmsg_get_bool(tb[PROC_ATTR_REQUIRED]);
1281
1282         D(WIRELESS, "Wireless device '%s' add pid %d\n", wdev->name, proc->pid);
1283         list_add(&proc->list, &wdev->script_proc);
1284         uloop_timeout_set(&wdev->script_check, 0);
1285
1286         return 0;
1287 }
1288
1289 static int
1290 wireless_device_process_kill_all(struct wireless_device *wdev, struct blob_attr *data,
1291                                  struct ubus_request_data *req)
1292 {
1293         enum {
1294                 KILL_ATTR_SIGNAL,
1295                 KILL_ATTR_IMMEDIATE,
1296                 __KILL_ATTR_MAX
1297         };
1298         static const struct blobmsg_policy kill_policy[__KILL_ATTR_MAX] = {
1299                 [KILL_ATTR_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
1300                 [KILL_ATTR_IMMEDIATE] = { .name = "immediate", .type = BLOBMSG_TYPE_BOOL },
1301         };
1302         struct blob_attr *tb[__KILL_ATTR_MAX];
1303         struct blob_attr *cur;
1304         bool immediate = false;
1305         int signal = SIGTERM;
1306
1307         blobmsg_parse(kill_policy, __KILL_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
1308
1309         if ((cur = tb[KILL_ATTR_SIGNAL]))
1310                 signal = blobmsg_get_u32(cur);
1311
1312         if ((cur = tb[KILL_ATTR_IMMEDIATE]))
1313                 immediate = blobmsg_get_bool(cur);
1314
1315         if (wdev->state != IFS_TEARDOWN || wdev->kill_request)
1316                 return UBUS_STATUS_PERMISSION_DENIED;
1317
1318         wireless_process_kill_all(wdev, signal, immediate);
1319
1320         if (list_empty(&wdev->script_proc))
1321                 return 0;
1322
1323         wdev->kill_request = calloc(1, sizeof(*wdev->kill_request));
1324         ubus_defer_request(ubus_ctx, req, wdev->kill_request);
1325
1326         return 0;
1327 }
1328
1329 static int
1330 wireless_device_set_retry(struct wireless_device *wdev, struct blob_attr *data)
1331 {
1332         static const struct blobmsg_policy retry_policy = {
1333                 .name = "retry", .type = BLOBMSG_TYPE_INT32
1334         };
1335         struct blob_attr *val;
1336
1337         blobmsg_parse(&retry_policy, 1, &val, blobmsg_data(data), blobmsg_data_len(data));
1338         if (!val)
1339                 return UBUS_STATUS_INVALID_ARGUMENT;
1340
1341         wdev->retry = blobmsg_get_u32(val);
1342         return 0;
1343 }
1344
1345 enum {
1346         NOTIFY_CMD_UP = 0,
1347         NOTIFY_CMD_SET_DATA = 1,
1348         NOTIFY_CMD_PROCESS_ADD = 2,
1349         NOTIFY_CMD_PROCESS_KILL_ALL = 3,
1350         NOTIFY_CMD_SET_RETRY = 4,
1351 };
1352
1353 int
1354 wireless_device_notify(struct wireless_device *wdev, struct blob_attr *data,
1355                        struct ubus_request_data *req)
1356 {
1357         enum {
1358                 NOTIFY_ATTR_COMMAND,
1359                 NOTIFY_ATTR_VIF,
1360                 NOTIFY_ATTR_VLAN,
1361                 NOTIFY_ATTR_DATA,
1362                 __NOTIFY_MAX,
1363         };
1364         static const struct blobmsg_policy notify_policy[__NOTIFY_MAX] = {
1365                 [NOTIFY_ATTR_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_INT32 },
1366                 [NOTIFY_ATTR_VIF] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
1367                 [NOTIFY_ATTR_VLAN] = { .name = "vlan", .type = BLOBMSG_TYPE_STRING },
1368                 [NOTIFY_ATTR_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
1369         };
1370         struct wireless_interface *vif = NULL;
1371         struct wireless_vlan *vlan = NULL;
1372         struct blob_attr *tb[__NOTIFY_MAX];
1373         struct blob_attr *cur, **pdata;
1374
1375         blobmsg_parse(notify_policy, __NOTIFY_MAX, tb, blob_data(data), blob_len(data));
1376
1377         if (!tb[NOTIFY_ATTR_COMMAND])
1378                 return UBUS_STATUS_INVALID_ARGUMENT;
1379
1380         if ((cur = tb[NOTIFY_ATTR_VIF]) != NULL) {
1381                 vif = vlist_find(&wdev->interfaces, blobmsg_data(cur), vif, node);
1382                 if (!vif)
1383                         return UBUS_STATUS_NOT_FOUND;
1384         }
1385
1386         if ((cur = tb[NOTIFY_ATTR_VLAN]) != NULL) {
1387                 vlan = vlist_find(&wdev->vlans, blobmsg_data(cur), vlan, node);
1388                 if (!vlan)
1389                         return UBUS_STATUS_NOT_FOUND;
1390         }
1391
1392         cur = tb[NOTIFY_ATTR_DATA];
1393         if (!cur)
1394                 return UBUS_STATUS_INVALID_ARGUMENT;
1395
1396         switch (blobmsg_get_u32(tb[NOTIFY_ATTR_COMMAND])) {
1397         case NOTIFY_CMD_UP:
1398                 if (vif || vlan)
1399                         return UBUS_STATUS_INVALID_ARGUMENT;
1400
1401                 if (wdev->state != IFS_SETUP)
1402                         return UBUS_STATUS_PERMISSION_DENIED;
1403
1404                 wireless_device_mark_up(wdev);
1405                 break;
1406         case NOTIFY_CMD_SET_DATA:
1407                 if (vif)
1408                         pdata = &vif->data;
1409                 else if (vlan)
1410                         pdata = &vlan->data;
1411                 else
1412                         pdata = &wdev->data;
1413
1414                 if (*pdata)
1415                         return UBUS_STATUS_INVALID_ARGUMENT;
1416
1417                 *pdata = blob_memdup(cur);
1418                 if (vif)
1419                         wireless_interface_set_data(vif);
1420                 else if (vlan)
1421                         wireless_vlan_set_data(vlan);
1422                 break;
1423         case NOTIFY_CMD_PROCESS_ADD:
1424                 return wireless_device_add_process(wdev, cur);
1425         case NOTIFY_CMD_PROCESS_KILL_ALL:
1426                 return wireless_device_process_kill_all(wdev, cur, req);
1427         case NOTIFY_CMD_SET_RETRY:
1428                 return wireless_device_set_retry(wdev, cur);
1429         default:
1430                 return UBUS_STATUS_INVALID_ARGUMENT;
1431         }
1432
1433         return 0;
1434 }
1435
1436 void
1437 wireless_start_pending(void)
1438 {
1439         struct wireless_device *wdev;
1440
1441         vlist_for_each_element(&wireless_devices, wdev, node)
1442                 __wireless_device_set_up(wdev, 0);
1443 }