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, *orig_dev;
 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->hotplug_ops)
 140                         return;
 141         }
 142
 143         if (!dev)
 144                 return;
 145
 146         orig_dev = dev;
 147         if (dev->hotplug_ops && dev->hotplug_ops->prepare)
 148                 dev->hotplug_ops->prepare(dev, &dev);
 149
 150         if (!dev || !dev->type->bridge_capability)
 151                 return;
 152
 153         blobmsg_add_string(buf, "bridge", dev->ifname);
 154         blobmsg_add_string(buf, "bridge-ifname", orig_dev->ifname);
 155
 156         if (dev->settings.flags & DEV_OPT_MULTICAST_TO_UNICAST)
 157                 blobmsg_add_u8(buf, "multicast_to_unicast",
 158                                dev->settings.multicast_to_unicast);
 159 }
 160
 161 static void
 162 prepare_config(struct wireless_device *wdev, struct blob_buf *buf, bool up)
 163 {
 164         struct wireless_interface *vif;
 165         struct wireless_vlan *vlan;
 166         struct wireless_station *sta;
 167         void *l, *i, *j, *k;
 168
 169         blob_buf_init(&b, 0);
 170         put_container(&b, wdev->config, "config");
 171         if (wdev->data)
 172                 blobmsg_add_blob(&b, wdev->data);
 173
 174         l = blobmsg_open_table(&b, "interfaces");
 175         vlist_for_each_element(&wdev->interfaces, vif, node) {
 176                 i = blobmsg_open_table(&b, vif->name);
 177                 vif_config_add_bridge(&b, vif->network, up);
 178                 put_container(&b, vif->config, "config");
 179                 if (vif->data)
 180                         blobmsg_add_blob(&b, vif->data);
 181
 182                 j = blobmsg_open_table(&b, "vlans");
 183                 vlist_for_each_element(&wdev->vlans, vlan, node) {
 184                         if (strcmp(vlan->vif, vif->name))
 185                                 continue;
 186                         k = blobmsg_open_table(&b, vlan->name);
 187                         vif_config_add_bridge(&b, vlan->network, up);
 188                         put_container(&b, vlan->config, "config");
 189                         if (vlan->data)
 190                                 blobmsg_add_blob(&b, vlan->data);
 191                         blobmsg_close_table(&b, k);
 192                 }
 193                 blobmsg_close_table(&b, j);
 194
 195                 j = blobmsg_open_table(&b, "stas");
 196                 vlist_for_each_element(&wdev->stations, sta, node) {
 197                         if (strcmp(sta->vif, vif->name))
 198                                 continue;
 199                         k = blobmsg_open_table(&b, sta->name);
 200                         put_container(&b, sta->config, "config");
 201                         if (sta->data)
 202                                 blobmsg_add_blob(&b, sta->data);
 203                         blobmsg_close_table(&b, k);
 204                 }
 205                 blobmsg_close_table(&b, j);
 206                 blobmsg_close_table(&b, i);
 207         }
 208         blobmsg_close_table(&b, l);
 209
 210 }
 211
 212 static bool
 213 wireless_process_check(struct wireless_process *proc)
 214 {
 215         return check_pid_path(proc->pid, proc->exe);
 216 }
 217
 218 static void
 219 wireless_complete_kill_request(struct wireless_device *wdev)
 220 {
 221         if (!wdev->kill_request)
 222                 return;
 223
 224         ubus_complete_deferred_request(ubus_ctx, wdev->kill_request, 0);
 225         free(wdev->kill_request);
 226         wdev->kill_request = NULL;
 227 }
 228
 229 static void
 230 wireless_process_free(struct wireless_device *wdev, struct wireless_process *proc)
 231 {
 232         D(WIRELESS, "Wireless device '%s' free pid %d\n", wdev->name, proc->pid);
 233         list_del(&proc->list);
 234         free(proc);
 235
 236         if (list_empty(&wdev->script_proc))
 237                 wireless_complete_kill_request(wdev);
 238 }
 239
 240 static void
 241 wireless_close_script_proc_fd(struct wireless_device *wdev)
 242 {
 243         if (wdev->script_proc_fd.fd < 0)
 244                 return;
 245
 246         uloop_fd_delete(&wdev->script_proc_fd);
 247         close(wdev->script_proc_fd.fd);
 248         wdev->script_proc_fd.fd = -1;
 249 }
 250
 251 static void
 252 wireless_process_kill_all(struct wireless_device *wdev, int signal, bool free)
 253 {
 254         struct wireless_process *proc, *tmp;
 255
 256         list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
 257                 bool check = wireless_process_check(proc);
 258
 259                 if (check && !proc->keep) {
 260                         D(WIRELESS, "Wireless device '%s' kill pid %d\n", wdev->name, proc->pid);
 261                         kill(proc->pid, signal);
 262                 }
 263
 264                 if (free || !check)
 265                         wireless_process_free(wdev, proc);
 266         }
 267
 268         if (free)
 269                 wireless_close_script_proc_fd(wdev);
 270 }
 271
 272 static void
 273 wireless_device_free_state(struct wireless_device *wdev)
 274 {
 275         struct wireless_interface *vif;
 276         struct wireless_vlan *vlan;
 277         struct wireless_station *sta;
 278
 279         wireless_handler_stop(wdev);
 280         uloop_timeout_cancel(&wdev->script_check);
 281         uloop_timeout_cancel(&wdev->timeout);
 282         wireless_complete_kill_request(wdev);
 283         free(wdev->data);
 284         wdev->data = NULL;
 285         vlist_for_each_element(&wdev->interfaces, vif, node) {
 286                 free(vif->data);
 287                 vif->data = NULL;
 288                 vif->ifname = NULL;
 289         }
 290         vlist_for_each_element(&wdev->vlans, vlan, node) {
 291                 free(vlan->data);
 292                 vlan->data = NULL;
 293                 vlan->ifname = NULL;
 294         }
 295         vlist_for_each_element(&wdev->stations, sta, node) {
 296                 free(sta->data);
 297                 sta->data = NULL;
 298         }
 299 }
 300
 301 static void wireless_interface_handle_link(struct wireless_interface *vif, bool up)
 302 {
 303         struct interface *iface;
 304         struct blob_attr *cur;
 305         const char *network;
 306         int rem;
 307
 308         if (!vif->network || !vif->ifname)
 309                 return;
 310
 311         if (up) {
 312                 struct device *dev = device_get(vif->ifname, 2);
 313                 if (dev) {
 314                         dev->wireless_isolate = vif->isolate;
 315                         dev->wireless = true;
 316                         dev->wireless_ap = vif->ap_mode;
 317                 }
 318         }
 319
 320         blobmsg_for_each_attr(cur, vif->network, rem) {
 321                 network = blobmsg_data(cur);
 322
 323                 iface = vlist_find(&interfaces, network, iface, node);
 324                 if (!iface)
 325                         continue;
 326
 327                 interface_handle_link(iface, vif->ifname, NULL, up, true);
 328         }
 329 }
 330
 331 static void wireless_vlan_handle_link(struct wireless_vlan *vlan, bool up)
 332 {
 333         struct interface *iface;
 334         struct blob_attr *cur;
 335         const char *network;
 336         int rem;
 337
 338         if (!vlan->network || !vlan->ifname)
 339                 return;
 340
 341         if (up) {
 342                 struct device *dev = device_get(vlan->ifname, 2);
 343                 if (dev) {
 344                         dev->wireless_isolate = vlan->isolate;
 345                         dev->wireless = true;
 346                         dev->wireless_ap = true;
 347                 }
 348         }
 349
 350         blobmsg_for_each_attr(cur, vlan->network, rem) {
 351                 network = blobmsg_data(cur);
 352
 353                 iface = vlist_find(&interfaces, network, iface, node);
 354                 if (!iface)
 355                         continue;
 356
 357                 interface_handle_link(iface, vlan->ifname, NULL, up, true);
 358         }
 359 }
 360
 361 static void
 362 wireless_device_setup_cancel(struct wireless_device *wdev)
 363 {
 364         if (wdev->cancel)
 365                 return;
 366
 367         wireless_handler_stop(wdev);
 368         D(WIRELESS, "Cancel wireless device '%s' setup\n", wdev->name);
 369         wdev->cancel = true;
 370         uloop_timeout_set(&wdev->timeout, 10 * 1000);
 371 }
 372
 373 static void
 374 wireless_device_run_handler(struct wireless_device *wdev, bool up)
 375 {
 376         const char *action = up ? "setup" : "teardown";
 377         const char *argv[6];
 378         char *config;
 379         int i = 0;
 380         int fds[2] = { -1, -1 };
 381
 382         wireless_handler_stop(wdev);
 383
 384         if (handler_pending && wdev->serialize) {
 385                 wdev->handler_action = up;
 386                 wdev->handler_pending = true;
 387                 list_add_tail(&wdev->handler, &handlers);
 388                 return;
 389         }
 390         if (wdev->serialize)
 391                 handler_pending = true;
 392
 393         D(WIRELESS, "Wireless device '%s' run %s handler\n", wdev->name, action);
 394         if (!up && wdev->prev_config) {
 395                 config = blobmsg_format_json(wdev->prev_config, true);
 396                 free(wdev->prev_config);
 397                 wdev->prev_config = NULL;
 398         } else {
 399                 prepare_config(wdev, &b, up);
 400                 config = blobmsg_format_json(b.head, true);
 401         }
 402
 403         argv[i++] = wdev->drv->script;
 404         argv[i++] = wdev->drv->name;
 405         argv[i++] = action;
 406         argv[i++] = wdev->name;
 407         argv[i++] = config;
 408         argv[i] = NULL;
 409
 410         if (up && pipe(fds) == 0) {
 411                 wdev->script_proc_fd.fd = fds[0];
 412                 uloop_fd_add(&wdev->script_proc_fd,
 413                              ULOOP_READ | ULOOP_EDGE_TRIGGER);
 414         }
 415
 416         netifd_start_process(argv, NULL, &wdev->script_task);
 417
 418         if (fds[1] >= 0)
 419                 close(fds[1]);
 420
 421         free(config);
 422 }
 423
 424 static void
 425 wireless_handler_next(void)
 426 {
 427         struct wireless_device *wdev;
 428
 429         if (handler_pending)
 430                 return;
 431         if (list_empty(&handlers))
 432                 return;
 433         wdev = list_first_entry(&handlers, struct wireless_device, handler);
 434         list_del(&wdev->handler);
 435         wdev->handler_pending = false;
 436         wireless_device_run_handler(wdev, wdev->handler_action);
 437 }
 438
 439 static void
 440 __wireless_device_set_up(struct wireless_device *wdev, int force)
 441 {
 442         if (wdev->disabled)
 443                 return;
 444
 445         if (wdev->retry_setup_failed)
 446                 return;
 447
 448         if (!wdev->autostart)
 449                 return;
 450
 451         if (!force && (wdev->state != IFS_DOWN || config_init))
 452                 return;
 453
 454         free(wdev->prev_config);
 455         wdev->prev_config = NULL;
 456         wdev->state = IFS_SETUP;
 457         wireless_device_run_handler(wdev, true);
 458 }
 459
 460 static void
 461 wireless_device_free(struct wireless_device *wdev)
 462 {
 463         wireless_handler_stop(wdev);
 464         vlist_flush_all(&wdev->interfaces);
 465         vlist_flush_all(&wdev->vlans);
 466         vlist_flush_all(&wdev->stations);
 467         avl_delete(&wireless_devices.avl, &wdev->node.avl);
 468         free(wdev->config);
 469         free(wdev->prev_config);
 470         free(wdev);
 471 }
 472
 473 static void
 474 wdev_handle_config_change(struct wireless_device *wdev)
 475 {
 476         enum interface_config_state state = wdev->config_state;
 477
 478         switch(state) {
 479         case IFC_NORMAL:
 480         case IFC_RELOAD:
 481                 __wireless_device_set_up(wdev, 0);
 482
 483                 wdev->config_state = IFC_NORMAL;
 484                 break;
 485         case IFC_REMOVE:
 486                 wireless_device_free(wdev);
 487                 break;
 488         }
 489 }
 490
 491 static void
 492 wireless_device_mark_down(struct wireless_device *wdev)
 493 {
 494         struct wireless_interface *vif;
 495         struct wireless_vlan *vlan;
 496
 497         D(WIRELESS, "Wireless device '%s' is now down\n", wdev->name);
 498
 499         vlist_for_each_element(&wdev->vlans, vlan, node)
 500                 wireless_vlan_handle_link(vlan, false);
 501
 502         vlist_for_each_element(&wdev->interfaces, vif, node)
 503                 wireless_interface_handle_link(vif, false);
 504
 505         wireless_process_kill_all(wdev, SIGTERM, true);
 506
 507         wdev->cancel = false;
 508         wdev->state = IFS_DOWN;
 509         wireless_device_free_state(wdev);
 510         wdev_handle_config_change(wdev);
 511 }
 512
 513 static void
 514 wireless_device_setup_timeout(struct uloop_timeout *timeout)
 515 {
 516         struct wireless_device *wdev = container_of(timeout, struct wireless_device, timeout);
 517
 518         if (wdev->handler_pending) {
 519                 wdev->handler_pending = false;
 520                 list_del(&wdev->handler);
 521         }
 522         netifd_kill_process(&wdev->script_task);
 523         wdev->script_task.cb(&wdev->script_task, -1);
 524         wireless_device_mark_down(wdev);
 525 }
 526
 527 void
 528 wireless_device_set_up(struct wireless_device *wdev)
 529 {
 530         wdev->retry = WIRELESS_SETUP_RETRY;
 531         wdev->autostart = true;
 532         __wireless_device_set_up(wdev, 0);
 533 }
 534
 535 void
 536 wireless_device_reconf(struct wireless_device *wdev)
 537 {
 538         wdev->retry = WIRELESS_SETUP_RETRY;
 539         wdev->autostart = true;
 540         __wireless_device_set_up(wdev, wdev->reconf && (wdev->state == IFS_UP));
 541 }
 542
 543 static void
 544 __wireless_device_set_down(struct wireless_device *wdev)
 545 {
 546         if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN)
 547                 return;
 548
 549         if (wdev->script_task.uloop.pending) {
 550                 wireless_device_setup_cancel(wdev);
 551                 return;
 552         }
 553
 554         wdev->state = IFS_TEARDOWN;
 555         wireless_device_run_handler(wdev, false);
 556 }
 557
 558 static void
 559 wireless_device_mark_up(struct wireless_device *wdev)
 560 {
 561         struct wireless_interface *vif;
 562         struct wireless_vlan *vlan;
 563
 564         if (wdev->cancel) {
 565                 wdev->cancel = false;
 566                 __wireless_device_set_down(wdev);
 567                 return;
 568         }
 569
 570         D(WIRELESS, "Wireless device '%s' is now up\n", wdev->name);
 571         wdev->state = IFS_UP;
 572         vlist_for_each_element(&wdev->interfaces, vif, node)
 573                 wireless_interface_handle_link(vif, true);
 574         vlist_for_each_element(&wdev->vlans, vlan, node)
 575                 wireless_vlan_handle_link(vlan, true);
 576 }
 577
 578 static void
 579 wireless_device_retry_setup(struct wireless_device *wdev)
 580 {
 581         if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN || wdev->cancel)
 582                 return;
 583
 584         if (--wdev->retry < 0)
 585                 wdev->retry_setup_failed = true;
 586
 587         __wireless_device_set_down(wdev);
 588 }
 589
 590 static void
 591 wireless_device_script_task_cb(struct netifd_process *proc, int ret)
 592 {
 593         struct wireless_device *wdev = container_of(proc, struct wireless_device, script_task);
 594
 595         switch (wdev->state) {
 596         case IFS_SETUP:
 597                 wireless_device_retry_setup(wdev);
 598                 break;
 599         case IFS_TEARDOWN:
 600                 wireless_device_mark_down(wdev);
 601                 break;
 602         default:
 603                 break;
 604         }
 605
 606         if (wdev->serialize) {
 607                 handler_pending = false;
 608                 wireless_handler_next();
 609         }
 610 }
 611
 612 void
 613 wireless_device_set_down(struct wireless_device *wdev)
 614 {
 615         wdev->retry_setup_failed = false;
 616         wdev->autostart = false;
 617         __wireless_device_set_down(wdev);
 618 }
 619
 620 static void
 621 wdev_set_config_state(struct wireless_device *wdev, enum interface_config_state s)
 622 {
 623         if (wdev->config_state != IFC_NORMAL)
 624                 return;
 625
 626         wdev->config_state = s;
 627         if (wdev->state == IFS_DOWN)
 628                 wdev_handle_config_change(wdev);
 629         else if (!wdev->reconf || wdev->state != IFS_UP)
 630                 __wireless_device_set_down(wdev);
 631 }
 632
 633 static void
 634 wdev_prepare_prev_config(struct wireless_device *wdev)
 635 {
 636         if (wdev->prev_config)
 637                 return;
 638
 639         prepare_config(wdev, &b, false);
 640         wdev->prev_config = blob_memdup(b.head);
 641 }
 642
 643 static void
 644 wdev_change_config(struct wireless_device *wdev, struct wireless_device *wd_new)
 645 {
 646         struct blob_attr *new_config = wd_new->config;
 647         bool disabled = wd_new->disabled;
 648
 649         free(wd_new);
 650
 651         wdev_prepare_prev_config(wdev);
 652         if (blob_attr_equal(wdev->config, new_config) && wdev->disabled == disabled)
 653                 return;
 654
 655         D(WIRELESS, "Update configuration of wireless device '%s'\n", wdev->name);
 656         free(wdev->config);
 657         wdev->config = blob_memdup(new_config);
 658         wdev->disabled = disabled;
 659         wdev->retry_setup_failed = false;
 660         wdev_set_config_state(wdev, IFC_RELOAD);
 661 }
 662
 663 static void
 664 wdev_create(struct wireless_device *wdev)
 665 {
 666         wdev->retry = WIRELESS_SETUP_RETRY;
 667         wdev->config = blob_memdup(wdev->config);
 668 }
 669
 670 static void
 671 wdev_update(struct vlist_tree *tree, struct vlist_node *node_new,
 672             struct vlist_node *node_old)
 673 {
 674         struct wireless_device *wd_old = container_of(node_old, struct wireless_device, node);
 675         struct wireless_device *wd_new = container_of(node_new, struct wireless_device, node);
 676
 677         if (wd_old && wd_new) {
 678                 D(WIRELESS, "Update wireless device '%s'\n", wd_old->name);
 679                 wdev_change_config(wd_old, wd_new);
 680         } else if (wd_old) {
 681                 D(WIRELESS, "Delete wireless device '%s'\n", wd_old->name);
 682                 wdev_set_config_state(wd_old, IFC_REMOVE);
 683         } else if (wd_new) {
 684                 D(WIRELESS, "Create wireless device '%s'\n", wd_new->name);
 685                 wdev_create(wd_new);
 686         }
 687 }
 688
 689 static void
 690 wireless_add_handler(const char *script, const char *name, json_object *obj)
 691 {
 692         struct wireless_driver *drv;
 693         char *name_str, *script_str;
 694         json_object *dev_config_obj, *iface_config_obj, *vlan_config_obj, *station_config_obj;
 695         struct uci_blob_param_list *dev_config, *iface_config, *vlan_config, *station_config;
 696
 697         dev_config_obj = json_get_field(obj, "device", json_type_array);
 698         iface_config_obj = json_get_field(obj, "iface", json_type_array);
 699         vlan_config_obj = json_get_field(obj, "vlan", json_type_array);
 700         station_config_obj = json_get_field(obj, "station", json_type_array);
 701
 702         if (!dev_config_obj || !iface_config_obj || !vlan_config_obj || !station_config_obj)
 703                 return;
 704
 705         drv = calloc_a(sizeof(*drv),
 706                 &dev_config, sizeof(*dev_config) + sizeof(void *),
 707                 &iface_config, sizeof(*iface_config) + sizeof(void *),
 708                 &vlan_config, sizeof(*vlan_config) + sizeof(void *),
 709                 &station_config, sizeof(*station_config) + sizeof(void *),
 710                 &name_str, strlen(name) + 1,
 711                 &script_str, strlen(script) + 1);
 712
 713         drv->name = strcpy(name_str, name);
 714         drv->script = strcpy(script_str, script);
 715
 716         dev_config->n_next = 1;
 717         dev_config->next[0] = &wdev_param;
 718         drv->device.config = dev_config;
 719
 720         iface_config->n_next = 1;
 721         iface_config->next[0] = &vif_param;
 722         drv->interface.config = iface_config;
 723
 724         vlan_config->n_next = 1;
 725         vlan_config->next[0] = &vlan_param;
 726         drv->vlan.config = vlan_config;
 727
 728         station_config->n_next = 1;
 729         station_config->next[0] = &station_param;
 730         drv->station.config = station_config;
 731
 732         drv->device.buf = netifd_handler_parse_config(drv->device.config, dev_config_obj);
 733         drv->interface.buf = netifd_handler_parse_config(drv->interface.config, iface_config_obj);
 734         drv->vlan.buf = netifd_handler_parse_config(drv->vlan.config, vlan_config_obj);
 735         drv->station.buf = netifd_handler_parse_config(drv->station.config, station_config_obj);
 736
 737         drv->node.key = drv->name;
 738         avl_insert(&wireless_drivers, &drv->node);
 739         D(WIRELESS, "Add handler for script %s: %s\n", script, name);
 740 }
 741
 742 void wireless_init(void)
 743 {
 744         vlist_init(&wireless_devices, avl_strcmp, wdev_update);
 745         wireless_devices.keep_old = true;
 746         wireless_devices.no_delete = true;
 747
 748         avl_init(&wireless_drivers, avl_strcmp, false, NULL);
 749         drv_fd = netifd_open_subdir("wireless");
 750         if (drv_fd < 0)
 751                 return;
 752
 753         netifd_init_script_handlers(drv_fd, wireless_add_handler);
 754 }
 755
 756 static void
 757 wireless_interface_init_config(struct wireless_interface *vif)
 758 {
 759         struct blob_attr *tb[__VIF_ATTR_MAX];
 760         struct blob_attr *cur;
 761
 762         vif->network = NULL;
 763         blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(vif->config), blob_len(vif->config));
 764
 765         if ((cur = tb[VIF_ATTR_NETWORK]))
 766                 vif->network = cur;
 767
 768         cur = tb[VIF_ATTR_ISOLATE];
 769         if (cur)
 770                 vif->isolate = blobmsg_get_bool(cur);
 771
 772         cur = tb[VIF_ATTR_MODE];
 773         if (cur)
 774                 vif->ap_mode = !strcmp(blobmsg_get_string(cur), "ap");
 775 }
 776
 777 static void
 778 vif_update(struct vlist_tree *tree, struct vlist_node *node_new,
 779            struct vlist_node *node_old)
 780 {
 781         struct wireless_interface *vif_old = container_of(node_old, struct wireless_interface, node);
 782         struct wireless_interface *vif_new = container_of(node_new, struct wireless_interface, node);
 783         struct wireless_device *wdev;
 784
 785         if (vif_old)
 786                 wdev = vif_old->wdev;
 787         else
 788                 wdev = vif_new->wdev;
 789
 790         if (vif_old && vif_new) {
 791                 free((void *) vif_old->section);
 792                 vif_old->section = strdup(vif_new->section);
 793                 if (blob_attr_equal(vif_old->config, vif_new->config)) {
 794                         free(vif_new);
 795                         return;
 796                 }
 797
 798                 D(WIRELESS, "Update wireless interface %s on device %s\n", vif_new->name, wdev->name);
 799                 wireless_interface_handle_link(vif_old, false);
 800                 free(vif_old->config);
 801                 vif_old->config = blob_memdup(vif_new->config);
 802                 vif_old->isolate = vif_new->isolate;
 803                 vif_old->ap_mode = vif_new->ap_mode;
 804                 wireless_interface_init_config(vif_old);
 805                 free(vif_new);
 806         } else if (vif_new) {
 807                 D(WIRELESS, "Create new wireless interface %s on device %s\n", vif_new->name, wdev->name);
 808                 vif_new->section = strdup(vif_new->section);
 809                 vif_new->config = blob_memdup(vif_new->config);
 810                 wireless_interface_init_config(vif_new);
 811         } else if (vif_old) {
 812                 D(WIRELESS, "Delete wireless interface %s on device %s\n", vif_old->name, wdev->name);
 813                 wireless_interface_handle_link(vif_old, false);
 814                 free((void *) vif_old->section);
 815                 free(vif_old->config);
 816                 free(vif_old);
 817         }
 818
 819         wdev_set_config_state(wdev, IFC_RELOAD);
 820 }
 821
 822 static void
 823 wireless_vlan_init_config(struct wireless_vlan *vlan)
 824 {
 825         struct blob_attr *tb[__VLAN_ATTR_MAX];
 826         struct blob_attr *cur;
 827
 828         vlan->network = NULL;
 829         blobmsg_parse(vlan_policy, __VLAN_ATTR_MAX, tb, blob_data(vlan->config), blob_len(vlan->config));
 830
 831         if ((cur = tb[VLAN_ATTR_NETWORK]))
 832                 vlan->network = cur;
 833
 834         cur = tb[VLAN_ATTR_ISOLATE];
 835         if (cur)
 836                 vlan->isolate = blobmsg_get_bool(cur);
 837 }
 838
 839 static void
 840 vlan_update(struct vlist_tree *tree, struct vlist_node *node_new,
 841             struct vlist_node *node_old)
 842 {
 843         struct wireless_vlan *vlan_old = container_of(node_old, struct wireless_vlan, node);
 844         struct wireless_vlan *vlan_new = container_of(node_new, struct wireless_vlan, node);
 845         struct wireless_device *wdev;
 846
 847         if (vlan_old)
 848                 wdev = vlan_old->wdev;
 849         else
 850                 wdev = vlan_new->wdev;
 851
 852         if (vlan_old && vlan_new) {
 853                 free((void *) vlan_old->section);
 854                 vlan_old->section = strdup(vlan_new->section);
 855                 if (blob_attr_equal(vlan_old->config, vlan_new->config)) {
 856                         free(vlan_new);
 857                         return;
 858                 }
 859
 860                 D(WIRELESS, "Update wireless vlan %s on device %s\n", vlan_new->name, wdev->name);
 861                 wireless_vlan_handle_link(vlan_old, false);
 862                 free(vlan_old->config);
 863                 vlan_old->config = blob_memdup(vlan_new->config);
 864                 vlan_old->isolate = vlan_new->isolate;
 865                 wireless_vlan_init_config(vlan_old);
 866                 free(vlan_new);
 867         } else if (vlan_new) {
 868                 D(WIRELESS, "Create new wireless vlan %s on device %s\n", vlan_new->name, wdev->name);
 869                 vlan_new->section = strdup(vlan_new->section);
 870                 vlan_new->config = blob_memdup(vlan_new->config);
 871                 wireless_vlan_init_config(vlan_new);
 872         } else if (vlan_old) {
 873                 D(WIRELESS, "Delete wireless interface %s on device %s\n", vlan_old->name, wdev->name);
 874                 wireless_vlan_handle_link(vlan_old, false);
 875                 free((void *) vlan_old->section);
 876                 free(vlan_old->config);
 877                 free(vlan_old);
 878         }
 879
 880         wdev_set_config_state(wdev, IFC_RELOAD);
 881 }
 882
 883 static void
 884 station_update(struct vlist_tree *tree, struct vlist_node *node_new,
 885                struct vlist_node *node_old)
 886 {
 887         struct wireless_station *sta_old = container_of(node_old, struct wireless_station, node);
 888         struct wireless_station *sta_new = container_of(node_new, struct wireless_station, node);
 889         struct wireless_device *wdev;
 890
 891         if (sta_old)
 892                 wdev = sta_old->wdev;
 893         else
 894                 wdev = sta_new->wdev;
 895
 896         if (sta_old && sta_new) {
 897                 free((void *) sta_old->section);
 898                 sta_old->section = strdup(sta_new->section);
 899                 if (blob_attr_equal(sta_old->config, sta_new->config)) {
 900                         free(sta_new);
 901                         return;
 902                 }
 903
 904                 D(WIRELESS, "Update wireless station %s on device %s\n", sta_new->name, wdev->name);
 905                 free(sta_old->config);
 906                 sta_old->config = blob_memdup(sta_new->config);
 907                 free(sta_new);
 908         } else if (sta_new) {
 909                 D(WIRELESS, "Create new wireless station %s on device %s\n", sta_new->name, wdev->name);
 910                 sta_new->section = strdup(sta_new->section);
 911                 sta_new->config = blob_memdup(sta_new->config);
 912         } else if (sta_old) {
 913                 D(WIRELESS, "Delete wireless station %s on device %s\n", sta_old->name, wdev->name);
 914                 free((void *) sta_old->section);
 915                 free(sta_old->config);
 916                 free(sta_old);
 917         }
 918
 919         wdev_set_config_state(wdev, IFC_RELOAD);
 920 }
 921
 922 static void
 923 wireless_proc_poll_fd(struct uloop_fd *fd, unsigned int events)
 924 {
 925         struct wireless_device *wdev = container_of(fd, struct wireless_device, script_proc_fd);
 926         char buf[128];
 927
 928         while (1) {
 929                 int b = read(fd->fd, buf, sizeof(buf));
 930                 if (b < 0) {
 931                         if (errno == EINTR)
 932                                 continue;
 933
 934                         if (errno == EAGAIN)
 935                                 return;
 936
 937                         goto done;
 938                 }
 939
 940                 if (!b)
 941                         goto done;
 942         }
 943
 944 done:
 945         uloop_timeout_set(&wdev->script_check, 0);
 946         wireless_close_script_proc_fd(wdev);
 947 }
 948
 949 static void
 950 wireless_device_check_script_tasks(struct uloop_timeout *timeout)
 951 {
 952         struct wireless_device *wdev = container_of(timeout, struct wireless_device, script_check);
 953         struct wireless_process *proc, *tmp;
 954         bool restart = false;
 955
 956         list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
 957                 if (wireless_process_check(proc))
 958                         continue;
 959
 960                 D(WIRELESS, "Wireless device '%s' pid %d has terminated\n", wdev->name, proc->pid);
 961                 if (proc->required)
 962                         restart = true;
 963
 964                 wireless_process_free(wdev, proc);
 965         }
 966
 967         if (restart)
 968                 wireless_device_retry_setup(wdev);
 969         else
 970                 uloop_timeout_set(&wdev->script_check, 1000);
 971 }
 972
 973 void
 974 wireless_device_create(struct wireless_driver *drv, const char *name, struct blob_attr *data)
 975 {
 976         struct wireless_device *wdev;
 977         char *name_buf;
 978         struct blob_attr *tb[__WDEV_ATTR_MAX];
 979         struct blob_attr *cur;
 980
 981         blobmsg_parse(wdev_policy, __WDEV_ATTR_MAX, tb, blob_data(data), blob_len(data));
 982
 983         wdev = calloc_a(sizeof(*wdev), &name_buf, strlen(name) + 1);
 984
 985         cur = tb[WDEV_ATTR_DISABLED];
 986         wdev->disabled = cur && blobmsg_get_bool(cur);
 987
 988         wdev->drv = drv;
 989         wdev->state = IFS_DOWN;
 990         wdev->config_state = IFC_NORMAL;
 991         wdev->name = strcpy(name_buf, name);
 992         wdev->config = data;
 993         wdev->handler_pending = false;
 994
 995         cur = tb[WDEV_ATTR_SERIALIZE];
 996         wdev->serialize = cur && blobmsg_get_bool(cur);
 997
 998         cur = tb[WDEV_ATTR_RECONF];
 999         wdev->reconf = cur && blobmsg_get_bool(cur);
1000
1001         wdev->retry_setup_failed = false;
1002         wdev->autostart = true;
1003         INIT_LIST_HEAD(&wdev->script_proc);
1004         vlist_init(&wdev->interfaces, avl_strcmp, vif_update);
1005         wdev->interfaces.keep_old = true;
1006         vlist_init(&wdev->vlans, avl_strcmp, vlan_update);
1007         wdev->vlans.keep_old = true;
1008         vlist_init(&wdev->stations, avl_strcmp, station_update);
1009         wdev->stations.keep_old = true;
1010
1011         wdev->timeout.cb = wireless_device_setup_timeout;
1012         wdev->script_task.cb = wireless_device_script_task_cb;
1013         wdev->script_task.dir_fd = drv_fd;
1014         wdev->script_task.log_prefix = wdev->name;
1015
1016         wdev->script_proc_fd.fd = -1;
1017         wdev->script_proc_fd.cb = wireless_proc_poll_fd;
1018
1019         wdev->script_check.cb = wireless_device_check_script_tasks;
1020
1021         vlist_add(&wireless_devices, &wdev->node, wdev->name);
1022 }
1023
1024 void
1025 wireless_station_create(struct wireless_device *wdev, char *vif, struct blob_attr *data, const char *section)
1026 {
1027         struct wireless_station *sta;
1028         struct blob_attr *tb[__STA_ATTR_MAX];
1029         struct blob_attr *cur;
1030         char *name_buf, *vif_buf;
1031         char name[8];
1032
1033         blobmsg_parse(sta_policy, __STA_ATTR_MAX, tb, blob_data(data), blob_len(data));
1034
1035         cur = tb[STA_ATTR_DISABLED];
1036         if (cur && blobmsg_get_bool(cur))
1037                 return;
1038
1039         sprintf(name, "%d", wdev->vlan_idx++);
1040
1041         sta = calloc_a(sizeof(*sta),
1042                        &name_buf, strlen(name) + 1,
1043                        &vif_buf, strlen(vif) + 1);
1044         sta->name = strcpy(name_buf, name);
1045         sta->vif = strcpy(vif_buf, vif);
1046         sta->wdev = wdev;
1047         sta->config = data;
1048         sta->section = section;
1049
1050         vlist_add(&wdev->stations, &sta->node, sta->name);
1051 }
1052
1053 static void
1054 wireless_station_status(struct wireless_station *sta, struct blob_buf *b)
1055 {
1056         void *i;
1057
1058         i = blobmsg_open_table(b, NULL);
1059         if (sta->section)
1060                 blobmsg_add_string(b, "section", sta->section);
1061         put_container(b, sta->config, "config");
1062         blobmsg_close_table(b, i);
1063 }
1064
1065 void
1066 wireless_vlan_create(struct wireless_device *wdev, char *vif, struct blob_attr *data, const char *section)
1067 {
1068         struct wireless_vlan *vlan;
1069         struct blob_attr *tb[__VLAN_ATTR_MAX];
1070         struct blob_attr *cur;
1071         char *name_buf, *vif_buf;
1072         char name[8];
1073
1074         blobmsg_parse(vlan_policy, __VLAN_ATTR_MAX, tb, blob_data(data), blob_len(data));
1075
1076         cur = tb[VLAN_ATTR_DISABLED];
1077         if (cur && blobmsg_get_bool(cur))
1078                 return;
1079
1080         sprintf(name, "%d", wdev->vlan_idx++);
1081
1082         vlan = calloc_a(sizeof(*vlan),
1083                        &name_buf, strlen(name) + 1,
1084                        &vif_buf, strlen(vif) + 1);
1085         vlan->name = strcpy(name_buf, name);
1086         vlan->vif = strcpy(vif_buf, vif);
1087         vlan->wdev = wdev;
1088         vlan->config = data;
1089         vlan->section = section;
1090         vlan->isolate = false;
1091
1092         vlist_add(&wdev->vlans, &vlan->node, vlan->name);
1093 }
1094
1095 static void
1096 wireless_vlan_status(struct wireless_vlan *vlan, struct blob_buf *b)
1097 {
1098         void *i;
1099
1100         i = blobmsg_open_table(b, NULL);
1101         if (vlan->section)
1102                 blobmsg_add_string(b, "section", vlan->section);
1103         if (vlan->ifname)
1104                 blobmsg_add_string(b, "ifname", vlan->ifname);
1105         put_container(b, vlan->config, "config");
1106         blobmsg_close_table(b, i);
1107 }
1108
1109 struct wireless_interface* wireless_interface_create(struct wireless_device *wdev, struct blob_attr *data, const char *section)
1110 {
1111         struct wireless_interface *vif;
1112         struct blob_attr *tb[__VIF_ATTR_MAX];
1113         struct blob_attr *cur;
1114         char *name_buf;
1115         char name[8];
1116
1117         blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(data), blob_len(data));
1118
1119         cur = tb[VIF_ATTR_DISABLED];
1120         if (cur && blobmsg_get_bool(cur))
1121                 return NULL;
1122
1123         sprintf(name, "%d", wdev->vif_idx++);
1124
1125         vif = calloc_a(sizeof(*vif),
1126                        &name_buf, strlen(name) + 1);
1127         vif->name = strcpy(name_buf, name);
1128         vif->wdev = wdev;
1129         vif->config = data;
1130         vif->section = section;
1131         vif->isolate = false;
1132
1133         vlist_add(&wdev->interfaces, &vif->node, vif->name);
1134
1135         return vlist_find(&wdev->interfaces, name, vif, node);
1136 }
1137
1138 static void
1139 wireless_interface_status(struct wireless_interface *iface, struct blob_buf *b)
1140 {
1141         struct wireless_vlan *vlan;
1142         struct wireless_station *sta;
1143         void *i, *j;
1144
1145         i = blobmsg_open_table(b, NULL);
1146         if (iface->section)
1147                 blobmsg_add_string(b, "section", iface->section);
1148         if (iface->ifname)
1149                 blobmsg_add_string(b, "ifname", iface->ifname);
1150         put_container(b, iface->config, "config");
1151         j = blobmsg_open_array(b, "vlans");
1152         vlist_for_each_element(&iface->wdev->vlans, vlan, node)
1153                 if (!strcmp(iface->name, vlan->vif))
1154                         wireless_vlan_status(vlan, b);
1155         blobmsg_close_array(b, j);
1156         j = blobmsg_open_array(b, "stations");
1157         vlist_for_each_element(&iface->wdev->stations, sta, node)
1158                 if (!strcmp(iface->name, sta->vif))
1159                         wireless_station_status(sta, b);
1160         blobmsg_close_array(b, j);
1161         blobmsg_close_table(b, i);
1162 }
1163
1164 void
1165 wireless_device_status(struct wireless_device *wdev, struct blob_buf *b)
1166 {
1167         struct wireless_interface *iface;
1168         void *c, *i;
1169
1170         c = blobmsg_open_table(b, wdev->name);
1171         blobmsg_add_u8(b, "up", wdev->state == IFS_UP);
1172         blobmsg_add_u8(b, "pending", wdev->state == IFS_SETUP || wdev->state == IFS_TEARDOWN);
1173         blobmsg_add_u8(b, "autostart", wdev->autostart);
1174         blobmsg_add_u8(b, "disabled", wdev->disabled);
1175         blobmsg_add_u8(b, "retry_setup_failed", wdev->retry_setup_failed);
1176         put_container(b, wdev->config, "config");
1177
1178         i = blobmsg_open_array(b, "interfaces");
1179         vlist_for_each_element(&wdev->interfaces, iface, node)
1180                 wireless_interface_status(iface, b);
1181         blobmsg_close_array(b, i);
1182         blobmsg_close_table(b, c);
1183 }
1184
1185 void
1186 wireless_device_get_validate(struct wireless_device *wdev, struct blob_buf *b)
1187 {
1188         struct uci_blob_param_list *p;
1189         void *c, *d;
1190         int i;
1191
1192         c = blobmsg_open_table(b, wdev->name);
1193
1194         d = blobmsg_open_table(b, "device");
1195         p = wdev->drv->device.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         d = blobmsg_open_table(b, "interface");
1201         p = wdev->drv->interface.config;
1202         for (i = 0; i < p->n_params; i++)
1203                 blobmsg_add_string(b, p->params[i].name, uci_get_validate_string(p, i));
1204         blobmsg_close_table(b, d);
1205
1206         blobmsg_close_table(b, c);
1207 }
1208
1209 static void
1210 wireless_interface_set_data(struct wireless_interface *vif)
1211 {
1212         enum {
1213                 VIF_DATA_IFNAME,
1214                 __VIF_DATA_MAX,
1215         };
1216         static const struct blobmsg_policy data_policy[__VIF_DATA_MAX] = {
1217                 [VIF_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
1218         };
1219         struct blob_attr *tb[__VIF_DATA_MAX];
1220         struct blob_attr *cur;
1221
1222         blobmsg_parse(data_policy, __VIF_DATA_MAX, tb,
1223                       blobmsg_data(vif->data), blobmsg_data_len(vif->data));
1224
1225         if ((cur = tb[VIF_DATA_IFNAME]))
1226                 vif->ifname = blobmsg_data(cur);
1227 }
1228
1229 static void
1230 wireless_vlan_set_data(struct wireless_vlan *vlan)
1231 {
1232         enum {
1233                 VLAN_DATA_IFNAME,
1234                 __VLAN_DATA_MAX,
1235         };
1236         static const struct blobmsg_policy data_policy[__VLAN_DATA_MAX] = {
1237                 [VLAN_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
1238         };
1239         struct blob_attr *tb[__VLAN_DATA_MAX];
1240         struct blob_attr *cur;
1241
1242         blobmsg_parse(data_policy, __VLAN_DATA_MAX, tb,
1243                       blobmsg_data(vlan->data), blobmsg_data_len(vlan->data));
1244
1245         if ((cur = tb[VLAN_DATA_IFNAME]))
1246                 vlan->ifname = blobmsg_data(cur);
1247 }
1248
1249 static int
1250 wireless_device_add_process(struct wireless_device *wdev, struct blob_attr *data)
1251 {
1252         enum {
1253                 PROC_ATTR_PID,
1254                 PROC_ATTR_EXE,
1255                 PROC_ATTR_REQUIRED,
1256                 PROC_ATTR_KEEP,
1257                 __PROC_ATTR_MAX
1258         };
1259         static const struct blobmsg_policy proc_policy[__PROC_ATTR_MAX] = {
1260                 [PROC_ATTR_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 },
1261                 [PROC_ATTR_EXE] = { .name = "exe", .type = BLOBMSG_TYPE_STRING },
1262                 [PROC_ATTR_REQUIRED] = { .name = "required", .type = BLOBMSG_TYPE_BOOL },
1263                 [PROC_ATTR_KEEP] = { .name = "keep", .type = BLOBMSG_TYPE_BOOL },
1264         };
1265         struct blob_attr *tb[__PROC_ATTR_MAX];
1266         struct wireless_process *proc;
1267         char *name;
1268         int pid;
1269
1270         if (!data)
1271                 return UBUS_STATUS_INVALID_ARGUMENT;
1272
1273         blobmsg_parse(proc_policy, __PROC_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
1274         if (!tb[PROC_ATTR_PID] || !tb[PROC_ATTR_EXE])
1275                 return UBUS_STATUS_INVALID_ARGUMENT;
1276
1277         pid = blobmsg_get_u32(tb[PROC_ATTR_PID]);
1278         if (pid < 2)
1279                 return UBUS_STATUS_INVALID_ARGUMENT;
1280
1281         proc = calloc_a(sizeof(*proc),
1282                 &name, strlen(blobmsg_data(tb[PROC_ATTR_EXE])) + 1);
1283
1284         proc->pid = pid;
1285         proc->exe = strcpy(name, blobmsg_data(tb[PROC_ATTR_EXE]));
1286
1287         if (tb[PROC_ATTR_REQUIRED])
1288                 proc->required = blobmsg_get_bool(tb[PROC_ATTR_REQUIRED]);
1289
1290         if (tb[PROC_ATTR_KEEP])
1291                 proc->keep = blobmsg_get_bool(tb[PROC_ATTR_KEEP]);
1292
1293         D(WIRELESS, "Wireless device '%s' add pid %d\n", wdev->name, proc->pid);
1294         list_add(&proc->list, &wdev->script_proc);
1295         uloop_timeout_set(&wdev->script_check, 0);
1296
1297         return 0;
1298 }
1299
1300 static int
1301 wireless_device_process_kill_all(struct wireless_device *wdev, struct blob_attr *data,
1302                                  struct ubus_request_data *req)
1303 {
1304         enum {
1305                 KILL_ATTR_SIGNAL,
1306                 KILL_ATTR_IMMEDIATE,
1307                 __KILL_ATTR_MAX
1308         };
1309         static const struct blobmsg_policy kill_policy[__KILL_ATTR_MAX] = {
1310                 [KILL_ATTR_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
1311                 [KILL_ATTR_IMMEDIATE] = { .name = "immediate", .type = BLOBMSG_TYPE_BOOL },
1312         };
1313         struct blob_attr *tb[__KILL_ATTR_MAX];
1314         struct blob_attr *cur;
1315         bool immediate = false;
1316         int signal = SIGTERM;
1317
1318         blobmsg_parse(kill_policy, __KILL_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
1319
1320         if ((cur = tb[KILL_ATTR_SIGNAL]))
1321                 signal = blobmsg_get_u32(cur);
1322
1323         if ((cur = tb[KILL_ATTR_IMMEDIATE]))
1324                 immediate = blobmsg_get_bool(cur);
1325
1326         if (wdev->state != IFS_TEARDOWN || wdev->kill_request)
1327                 return UBUS_STATUS_PERMISSION_DENIED;
1328
1329         wireless_process_kill_all(wdev, signal, immediate);
1330
1331         if (list_empty(&wdev->script_proc))
1332                 return 0;
1333
1334         wdev->kill_request = calloc(1, sizeof(*wdev->kill_request));
1335         ubus_defer_request(ubus_ctx, req, wdev->kill_request);
1336
1337         return 0;
1338 }
1339
1340 static int
1341 wireless_device_set_retry(struct wireless_device *wdev, struct blob_attr *data)
1342 {
1343         static const struct blobmsg_policy retry_policy = {
1344                 .name = "retry", .type = BLOBMSG_TYPE_INT32
1345         };
1346         struct blob_attr *val;
1347
1348         blobmsg_parse(&retry_policy, 1, &val, blobmsg_data(data), blobmsg_data_len(data));
1349         if (!val)
1350                 return UBUS_STATUS_INVALID_ARGUMENT;
1351
1352         wdev->retry = blobmsg_get_u32(val);
1353         return 0;
1354 }
1355
1356 enum {
1357         NOTIFY_CMD_UP = 0,
1358         NOTIFY_CMD_SET_DATA = 1,
1359         NOTIFY_CMD_PROCESS_ADD = 2,
1360         NOTIFY_CMD_PROCESS_KILL_ALL = 3,
1361         NOTIFY_CMD_SET_RETRY = 4,
1362 };
1363
1364 int
1365 wireless_device_notify(struct wireless_device *wdev, struct blob_attr *data,
1366                        struct ubus_request_data *req)
1367 {
1368         enum {
1369                 NOTIFY_ATTR_COMMAND,
1370                 NOTIFY_ATTR_VIF,
1371                 NOTIFY_ATTR_VLAN,
1372                 NOTIFY_ATTR_DATA,
1373                 __NOTIFY_MAX,
1374         };
1375         static const struct blobmsg_policy notify_policy[__NOTIFY_MAX] = {
1376                 [NOTIFY_ATTR_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_INT32 },
1377                 [NOTIFY_ATTR_VIF] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
1378                 [NOTIFY_ATTR_VLAN] = { .name = "vlan", .type = BLOBMSG_TYPE_STRING },
1379                 [NOTIFY_ATTR_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
1380         };
1381         struct wireless_interface *vif = NULL;
1382         struct wireless_vlan *vlan = NULL;
1383         struct blob_attr *tb[__NOTIFY_MAX];
1384         struct blob_attr *cur, **pdata;
1385
1386         blobmsg_parse(notify_policy, __NOTIFY_MAX, tb, blob_data(data), blob_len(data));
1387
1388         if (!tb[NOTIFY_ATTR_COMMAND])
1389                 return UBUS_STATUS_INVALID_ARGUMENT;
1390
1391         if ((cur = tb[NOTIFY_ATTR_VIF]) != NULL) {
1392                 vif = vlist_find(&wdev->interfaces, blobmsg_data(cur), vif, node);
1393                 if (!vif)
1394                         return UBUS_STATUS_NOT_FOUND;
1395         }
1396
1397         if ((cur = tb[NOTIFY_ATTR_VLAN]) != NULL) {
1398                 vlan = vlist_find(&wdev->vlans, blobmsg_data(cur), vlan, node);
1399                 if (!vlan)
1400                         return UBUS_STATUS_NOT_FOUND;
1401         }
1402
1403         cur = tb[NOTIFY_ATTR_DATA];
1404         if (!cur)
1405                 return UBUS_STATUS_INVALID_ARGUMENT;
1406
1407         switch (blobmsg_get_u32(tb[NOTIFY_ATTR_COMMAND])) {
1408         case NOTIFY_CMD_UP:
1409                 if (vif || vlan)
1410                         return UBUS_STATUS_INVALID_ARGUMENT;
1411
1412                 if (wdev->state != IFS_SETUP)
1413                         return UBUS_STATUS_PERMISSION_DENIED;
1414
1415                 wireless_device_mark_up(wdev);
1416                 break;
1417         case NOTIFY_CMD_SET_DATA:
1418                 if (vif)
1419                         pdata = &vif->data;
1420                 else if (vlan)
1421                         pdata = &vlan->data;
1422                 else
1423                         pdata = &wdev->data;
1424
1425                 if (*pdata)
1426                         return UBUS_STATUS_INVALID_ARGUMENT;
1427
1428                 *pdata = blob_memdup(cur);
1429                 if (vif)
1430                         wireless_interface_set_data(vif);
1431                 else if (vlan)
1432                         wireless_vlan_set_data(vlan);
1433                 break;
1434         case NOTIFY_CMD_PROCESS_ADD:
1435                 return wireless_device_add_process(wdev, cur);
1436         case NOTIFY_CMD_PROCESS_KILL_ALL:
1437                 return wireless_device_process_kill_all(wdev, cur, req);
1438         case NOTIFY_CMD_SET_RETRY:
1439                 return wireless_device_set_retry(wdev, cur);
1440         default:
1441                 return UBUS_STATUS_INVALID_ARGUMENT;
1442         }
1443
1444         return 0;
1445 }
1446
1447 void
1448 wireless_start_pending(void)
1449 {
1450         struct wireless_device *wdev;
1451
1452         vlist_for_each_element(&wireless_devices, wdev, node)
1453                 __wireless_device_set_up(wdev, 0);
1454 }