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->hotplug_ops)
 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, &dev);
 148
 149         if (!dev || !dev->type->bridge_capability)
 150                 return;
 151
 152         blobmsg_add_string(buf, "bridge", dev->ifname);
 153
 154         if (dev->settings.flags & DEV_OPT_MULTICAST_TO_UNICAST)
 155                 blobmsg_add_u8(buf, "multicast_to_unicast",
 156                                dev->settings.multicast_to_unicast);
 157 }
 158
 159 static void
 160 prepare_config(struct wireless_device *wdev, struct blob_buf *buf, bool up)
 161 {
 162         struct wireless_interface *vif;
 163         struct wireless_vlan *vlan;
 164         struct wireless_station *sta;
 165         void *l, *i, *j, *k;
 166
 167         blob_buf_init(&b, 0);
 168         put_container(&b, wdev->config, "config");
 169         if (wdev->data)
 170                 blobmsg_add_blob(&b, wdev->data);
 171
 172         l = blobmsg_open_table(&b, "interfaces");
 173         vlist_for_each_element(&wdev->interfaces, vif, node) {
 174                 i = blobmsg_open_table(&b, vif->name);
 175                 vif_config_add_bridge(&b, vif->network, up);
 176                 put_container(&b, vif->config, "config");
 177                 if (vif->data)
 178                         blobmsg_add_blob(&b, vif->data);
 179
 180                 j = blobmsg_open_table(&b, "vlans");
 181                 vlist_for_each_element(&wdev->vlans, vlan, node) {
 182                         if (strcmp(vlan->vif, vif->name))
 183                                 continue;
 184                         k = blobmsg_open_table(&b, vlan->name);
 185                         vif_config_add_bridge(&b, vlan->network, up);
 186                         put_container(&b, vlan->config, "config");
 187                         if (vlan->data)
 188                                 blobmsg_add_blob(&b, vlan->data);
 189                         blobmsg_close_table(&b, k);
 190                 }
 191                 blobmsg_close_table(&b, j);
 192
 193                 j = blobmsg_open_table(&b, "stas");
 194                 vlist_for_each_element(&wdev->stations, sta, node) {
 195                         if (strcmp(sta->vif, vif->name))
 196                                 continue;
 197                         k = blobmsg_open_table(&b, sta->name);
 198                         put_container(&b, sta->config, "config");
 199                         if (sta->data)
 200                                 blobmsg_add_blob(&b, sta->data);
 201                         blobmsg_close_table(&b, k);
 202                 }
 203                 blobmsg_close_table(&b, j);
 204                 blobmsg_close_table(&b, i);
 205         }
 206         blobmsg_close_table(&b, l);
 207
 208 }
 209
 210 static bool
 211 wireless_process_check(struct wireless_process *proc)
 212 {
 213         return check_pid_path(proc->pid, proc->exe);
 214 }
 215
 216 static void
 217 wireless_complete_kill_request(struct wireless_device *wdev)
 218 {
 219         if (!wdev->kill_request)
 220                 return;
 221
 222         ubus_complete_deferred_request(ubus_ctx, wdev->kill_request, 0);
 223         free(wdev->kill_request);
 224         wdev->kill_request = NULL;
 225 }
 226
 227 static void
 228 wireless_process_free(struct wireless_device *wdev, struct wireless_process *proc)
 229 {
 230         D(WIRELESS, "Wireless device '%s' free pid %d\n", wdev->name, proc->pid);
 231         list_del(&proc->list);
 232         free(proc);
 233
 234         if (list_empty(&wdev->script_proc))
 235                 wireless_complete_kill_request(wdev);
 236 }
 237
 238 static void
 239 wireless_close_script_proc_fd(struct wireless_device *wdev)
 240 {
 241         if (wdev->script_proc_fd.fd < 0)
 242                 return;
 243
 244         uloop_fd_delete(&wdev->script_proc_fd);
 245         close(wdev->script_proc_fd.fd);
 246         wdev->script_proc_fd.fd = -1;
 247 }
 248
 249 static void
 250 wireless_process_kill_all(struct wireless_device *wdev, int signal, bool free)
 251 {
 252         struct wireless_process *proc, *tmp;
 253
 254         list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
 255                 bool check = wireless_process_check(proc);
 256
 257                 if (check && !proc->keep) {
 258                         D(WIRELESS, "Wireless device '%s' kill pid %d\n", wdev->name, proc->pid);
 259                         kill(proc->pid, signal);
 260                 }
 261
 262                 if (free || !check)
 263                         wireless_process_free(wdev, proc);
 264         }
 265
 266         if (free)
 267                 wireless_close_script_proc_fd(wdev);
 268 }
 269
 270 static void
 271 wireless_device_free_state(struct wireless_device *wdev)
 272 {
 273         struct wireless_interface *vif;
 274         struct wireless_vlan *vlan;
 275         struct wireless_station *sta;
 276
 277         wireless_handler_stop(wdev);
 278         uloop_timeout_cancel(&wdev->script_check);
 279         uloop_timeout_cancel(&wdev->timeout);
 280         wireless_complete_kill_request(wdev);
 281         free(wdev->data);
 282         wdev->data = NULL;
 283         vlist_for_each_element(&wdev->interfaces, vif, node) {
 284                 free(vif->data);
 285                 vif->data = NULL;
 286                 vif->ifname = NULL;
 287         }
 288         vlist_for_each_element(&wdev->vlans, vlan, node) {
 289                 free(vlan->data);
 290                 vlan->data = NULL;
 291                 vlan->ifname = NULL;
 292         }
 293         vlist_for_each_element(&wdev->stations, sta, node) {
 294                 free(sta->data);
 295                 sta->data = NULL;
 296         }
 297 }
 298
 299 static void wireless_interface_handle_link(struct wireless_interface *vif, bool up)
 300 {
 301         struct interface *iface;
 302         struct blob_attr *cur;
 303         const char *network;
 304         int rem;
 305
 306         if (!vif->network || !vif->ifname)
 307                 return;
 308
 309         if (up) {
 310                 struct device *dev = device_get(vif->ifname, 2);
 311                 if (dev) {
 312                         dev->wireless_isolate = vif->isolate;
 313                         dev->wireless = true;
 314                         dev->wireless_ap = vif->ap_mode;
 315                 }
 316         }
 317
 318         blobmsg_for_each_attr(cur, vif->network, rem) {
 319                 network = blobmsg_data(cur);
 320
 321                 iface = vlist_find(&interfaces, network, iface, node);
 322                 if (!iface)
 323                         continue;
 324
 325                 interface_handle_link(iface, vif->ifname, NULL, up, true);
 326         }
 327 }
 328
 329 static void wireless_vlan_handle_link(struct wireless_vlan *vlan, bool up)
 330 {
 331         struct interface *iface;
 332         struct blob_attr *cur;
 333         const char *network;
 334         int rem;
 335
 336         if (!vlan->network || !vlan->ifname)
 337                 return;
 338
 339         if (up) {
 340                 struct device *dev = device_get(vlan->ifname, 2);
 341                 if (dev) {
 342                         dev->wireless_isolate = vlan->isolate;
 343                         dev->wireless = true;
 344                         dev->wireless_ap = true;
 345                 }
 346         }
 347
 348         blobmsg_for_each_attr(cur, vlan->network, rem) {
 349                 network = blobmsg_data(cur);
 350
 351                 iface = vlist_find(&interfaces, network, iface, node);
 352                 if (!iface)
 353                         continue;
 354
 355                 interface_handle_link(iface, vlan->ifname, NULL, up, true);
 356         }
 357 }
 358
 359 static void
 360 wireless_device_setup_cancel(struct wireless_device *wdev)
 361 {
 362         if (wdev->cancel)
 363                 return;
 364
 365         wireless_handler_stop(wdev);
 366         D(WIRELESS, "Cancel wireless device '%s' setup\n", wdev->name);
 367         wdev->cancel = true;
 368         uloop_timeout_set(&wdev->timeout, 10 * 1000);
 369 }
 370
 371 static void
 372 wireless_device_run_handler(struct wireless_device *wdev, bool up)
 373 {
 374         const char *action = up ? "setup" : "teardown";
 375         const char *argv[6];
 376         char *config;
 377         int i = 0;
 378         int fds[2] = { -1, -1 };
 379
 380         wireless_handler_stop(wdev);
 381
 382         if (handler_pending && wdev->serialize) {
 383                 wdev->handler_action = up;
 384                 wdev->handler_pending = true;
 385                 list_add_tail(&wdev->handler, &handlers);
 386                 return;
 387         }
 388         if (wdev->serialize)
 389                 handler_pending = true;
 390
 391         D(WIRELESS, "Wireless device '%s' run %s handler\n", wdev->name, action);
 392         if (!up && wdev->prev_config) {
 393                 config = blobmsg_format_json(wdev->prev_config, true);
 394                 free(wdev->prev_config);
 395                 wdev->prev_config = NULL;
 396         } else {
 397                 prepare_config(wdev, &b, up);
 398                 config = blobmsg_format_json(b.head, true);
 399         }
 400
 401         argv[i++] = wdev->drv->script;
 402         argv[i++] = wdev->drv->name;
 403         argv[i++] = action;
 404         argv[i++] = wdev->name;
 405         argv[i++] = config;
 406         argv[i] = NULL;
 407
 408         if (up && pipe(fds) == 0) {
 409                 wdev->script_proc_fd.fd = fds[0];
 410                 uloop_fd_add(&wdev->script_proc_fd,
 411                              ULOOP_READ | ULOOP_EDGE_TRIGGER);
 412         }
 413
 414         netifd_start_process(argv, NULL, &wdev->script_task);
 415
 416         if (fds[1] >= 0)
 417                 close(fds[1]);
 418
 419         free(config);
 420 }
 421
 422 static void
 423 wireless_handler_next(void)
 424 {
 425         struct wireless_device *wdev;
 426
 427         if (handler_pending)
 428                 return;
 429         if (list_empty(&handlers))
 430                 return;
 431         wdev = list_first_entry(&handlers, struct wireless_device, handler);
 432         list_del(&wdev->handler);
 433         wdev->handler_pending = false;
 434         wireless_device_run_handler(wdev, wdev->handler_action);
 435 }
 436
 437 static void
 438 __wireless_device_set_up(struct wireless_device *wdev, int force)
 439 {
 440         if (wdev->disabled)
 441                 return;
 442
 443         if (wdev->retry_setup_failed)
 444                 return;
 445
 446         if (!wdev->autostart)
 447                 return;
 448
 449         if (!force && (wdev->state != IFS_DOWN || config_init))
 450                 return;
 451
 452         free(wdev->prev_config);
 453         wdev->prev_config = NULL;
 454         wdev->state = IFS_SETUP;
 455         wireless_device_run_handler(wdev, true);
 456 }
 457
 458 static void
 459 wireless_device_free(struct wireless_device *wdev)
 460 {
 461         wireless_handler_stop(wdev);
 462         vlist_flush_all(&wdev->interfaces);
 463         vlist_flush_all(&wdev->vlans);
 464         vlist_flush_all(&wdev->stations);
 465         avl_delete(&wireless_devices.avl, &wdev->node.avl);
 466         free(wdev->config);
 467         free(wdev->prev_config);
 468         free(wdev);
 469 }
 470
 471 static void
 472 wdev_handle_config_change(struct wireless_device *wdev)
 473 {
 474         enum interface_config_state state = wdev->config_state;
 475
 476         switch(state) {
 477         case IFC_NORMAL:
 478         case IFC_RELOAD:
 479                 __wireless_device_set_up(wdev, 0);
 480
 481                 wdev->config_state = IFC_NORMAL;
 482                 break;
 483         case IFC_REMOVE:
 484                 wireless_device_free(wdev);
 485                 break;
 486         }
 487 }
 488
 489 static void
 490 wireless_device_mark_down(struct wireless_device *wdev)
 491 {
 492         struct wireless_interface *vif;
 493         struct wireless_vlan *vlan;
 494
 495         D(WIRELESS, "Wireless device '%s' is now down\n", wdev->name);
 496
 497         vlist_for_each_element(&wdev->vlans, vlan, node)
 498                 wireless_vlan_handle_link(vlan, false);
 499
 500         vlist_for_each_element(&wdev->interfaces, vif, node)
 501                 wireless_interface_handle_link(vif, false);
 502
 503         wireless_process_kill_all(wdev, SIGTERM, true);
 504
 505         wdev->cancel = false;
 506         wdev->state = IFS_DOWN;
 507         wireless_device_free_state(wdev);
 508         wdev_handle_config_change(wdev);
 509 }
 510
 511 static void
 512 wireless_device_setup_timeout(struct uloop_timeout *timeout)
 513 {
 514         struct wireless_device *wdev = container_of(timeout, struct wireless_device, timeout);
 515
 516         if (wdev->handler_pending) {
 517                 wdev->handler_pending = false;
 518                 list_del(&wdev->handler);
 519         }
 520         netifd_kill_process(&wdev->script_task);
 521         wdev->script_task.cb(&wdev->script_task, -1);
 522         wireless_device_mark_down(wdev);
 523 }
 524
 525 void
 526 wireless_device_set_up(struct wireless_device *wdev)
 527 {
 528         wdev->retry = WIRELESS_SETUP_RETRY;
 529         wdev->autostart = true;
 530         __wireless_device_set_up(wdev, 0);
 531 }
 532
 533 void
 534 wireless_device_reconf(struct wireless_device *wdev)
 535 {
 536         wdev->retry = WIRELESS_SETUP_RETRY;
 537         wdev->autostart = true;
 538         __wireless_device_set_up(wdev, wdev->reconf && (wdev->state == IFS_UP));
 539 }
 540
 541 static void
 542 __wireless_device_set_down(struct wireless_device *wdev)
 543 {
 544         if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN)
 545                 return;
 546
 547         if (wdev->script_task.uloop.pending) {
 548                 wireless_device_setup_cancel(wdev);
 549                 return;
 550         }
 551
 552         wdev->state = IFS_TEARDOWN;
 553         wireless_device_run_handler(wdev, false);
 554 }
 555
 556 static void
 557 wireless_device_mark_up(struct wireless_device *wdev)
 558 {
 559         struct wireless_interface *vif;
 560         struct wireless_vlan *vlan;
 561
 562         if (wdev->cancel) {
 563                 wdev->cancel = false;
 564                 __wireless_device_set_down(wdev);
 565                 return;
 566         }
 567
 568         D(WIRELESS, "Wireless device '%s' is now up\n", wdev->name);
 569         wdev->state = IFS_UP;
 570         vlist_for_each_element(&wdev->interfaces, vif, node)
 571                 wireless_interface_handle_link(vif, true);
 572         vlist_for_each_element(&wdev->vlans, vlan, node)
 573                 wireless_vlan_handle_link(vlan, true);
 574 }
 575
 576 static void
 577 wireless_device_retry_setup(struct wireless_device *wdev)
 578 {
 579         if (wdev->state == IFS_TEARDOWN || wdev->state == IFS_DOWN || wdev->cancel)
 580                 return;
 581
 582         if (--wdev->retry < 0)
 583                 wdev->retry_setup_failed = true;
 584
 585         __wireless_device_set_down(wdev);
 586 }
 587
 588 static void
 589 wireless_device_script_task_cb(struct netifd_process *proc, int ret)
 590 {
 591         struct wireless_device *wdev = container_of(proc, struct wireless_device, script_task);
 592
 593         switch (wdev->state) {
 594         case IFS_SETUP:
 595                 wireless_device_retry_setup(wdev);
 596                 break;
 597         case IFS_TEARDOWN:
 598                 wireless_device_mark_down(wdev);
 599                 break;
 600         default:
 601                 break;
 602         }
 603
 604         if (wdev->serialize) {
 605                 handler_pending = false;
 606                 wireless_handler_next();
 607         }
 608 }
 609
 610 void
 611 wireless_device_set_down(struct wireless_device *wdev)
 612 {
 613         wdev->retry_setup_failed = false;
 614         wdev->autostart = false;
 615         __wireless_device_set_down(wdev);
 616 }
 617
 618 static void
 619 wdev_set_config_state(struct wireless_device *wdev, enum interface_config_state s)
 620 {
 621         if (wdev->config_state != IFC_NORMAL)
 622                 return;
 623
 624         wdev->config_state = s;
 625         if (wdev->state == IFS_DOWN)
 626                 wdev_handle_config_change(wdev);
 627         else if (!wdev->reconf || wdev->state != IFS_UP)
 628                 __wireless_device_set_down(wdev);
 629 }
 630
 631 static void
 632 wdev_prepare_prev_config(struct wireless_device *wdev)
 633 {
 634         if (wdev->prev_config)
 635                 return;
 636
 637         prepare_config(wdev, &b, false);
 638         wdev->prev_config = blob_memdup(b.head);
 639 }
 640
 641 static void
 642 wdev_change_config(struct wireless_device *wdev, struct wireless_device *wd_new)
 643 {
 644         struct blob_attr *new_config = wd_new->config;
 645         bool disabled = wd_new->disabled;
 646
 647         free(wd_new);
 648
 649         wdev_prepare_prev_config(wdev);
 650         if (blob_attr_equal(wdev->config, new_config) && wdev->disabled == disabled)
 651                 return;
 652
 653         D(WIRELESS, "Update configuration of wireless device '%s'\n", wdev->name);
 654         free(wdev->config);
 655         wdev->config = blob_memdup(new_config);
 656         wdev->disabled = disabled;
 657         wdev->retry_setup_failed = false;
 658         wdev_set_config_state(wdev, IFC_RELOAD);
 659 }
 660
 661 static void
 662 wdev_create(struct wireless_device *wdev)
 663 {
 664         wdev->retry = WIRELESS_SETUP_RETRY;
 665         wdev->config = blob_memdup(wdev->config);
 666 }
 667
 668 static void
 669 wdev_update(struct vlist_tree *tree, struct vlist_node *node_new,
 670             struct vlist_node *node_old)
 671 {
 672         struct wireless_device *wd_old = container_of(node_old, struct wireless_device, node);
 673         struct wireless_device *wd_new = container_of(node_new, struct wireless_device, node);
 674
 675         if (wd_old && wd_new) {
 676                 D(WIRELESS, "Update wireless device '%s'\n", wd_old->name);
 677                 wdev_change_config(wd_old, wd_new);
 678         } else if (wd_old) {
 679                 D(WIRELESS, "Delete wireless device '%s'\n", wd_old->name);
 680                 wdev_set_config_state(wd_old, IFC_REMOVE);
 681         } else if (wd_new) {
 682                 D(WIRELESS, "Create wireless device '%s'\n", wd_new->name);
 683                 wdev_create(wd_new);
 684         }
 685 }
 686
 687 static void
 688 wireless_add_handler(const char *script, const char *name, json_object *obj)
 689 {
 690         struct wireless_driver *drv;
 691         char *name_str, *script_str;
 692         json_object *dev_config_obj, *iface_config_obj, *vlan_config_obj, *station_config_obj;
 693         struct uci_blob_param_list *dev_config, *iface_config, *vlan_config, *station_config;
 694
 695         dev_config_obj = json_get_field(obj, "device", json_type_array);
 696         iface_config_obj = json_get_field(obj, "iface", json_type_array);
 697         vlan_config_obj = json_get_field(obj, "vlan", json_type_array);
 698         station_config_obj = json_get_field(obj, "station", json_type_array);
 699
 700         if (!dev_config_obj || !iface_config_obj || !vlan_config_obj || !station_config_obj)
 701                 return;
 702
 703         drv = calloc_a(sizeof(*drv),
 704                 &dev_config, sizeof(*dev_config) + sizeof(void *),
 705                 &iface_config, sizeof(*iface_config) + sizeof(void *),
 706                 &vlan_config, sizeof(*vlan_config) + sizeof(void *),
 707                 &station_config, sizeof(*station_config) + sizeof(void *),
 708                 &name_str, strlen(name) + 1,
 709                 &script_str, strlen(script) + 1);
 710
 711         drv->name = strcpy(name_str, name);
 712         drv->script = strcpy(script_str, script);
 713
 714         dev_config->n_next = 1;
 715         dev_config->next[0] = &wdev_param;
 716         drv->device.config = dev_config;
 717
 718         iface_config->n_next = 1;
 719         iface_config->next[0] = &vif_param;
 720         drv->interface.config = iface_config;
 721
 722         vlan_config->n_next = 1;
 723         vlan_config->next[0] = &vlan_param;
 724         drv->vlan.config = vlan_config;
 725
 726         station_config->n_next = 1;
 727         station_config->next[0] = &station_param;
 728         drv->station.config = station_config;
 729
 730         drv->device.buf = netifd_handler_parse_config(drv->device.config, dev_config_obj);
 731         drv->interface.buf = netifd_handler_parse_config(drv->interface.config, iface_config_obj);
 732         drv->vlan.buf = netifd_handler_parse_config(drv->vlan.config, vlan_config_obj);
 733         drv->station.buf = netifd_handler_parse_config(drv->station.config, station_config_obj);
 734
 735         drv->node.key = drv->name;
 736         avl_insert(&wireless_drivers, &drv->node);
 737         D(WIRELESS, "Add handler for script %s: %s\n", script, name);
 738 }
 739
 740 void wireless_init(void)
 741 {
 742         vlist_init(&wireless_devices, avl_strcmp, wdev_update);
 743         wireless_devices.keep_old = true;
 744         wireless_devices.no_delete = true;
 745
 746         avl_init(&wireless_drivers, avl_strcmp, false, NULL);
 747         drv_fd = netifd_open_subdir("wireless");
 748         if (drv_fd < 0)
 749                 return;
 750
 751         netifd_init_script_handlers(drv_fd, wireless_add_handler);
 752 }
 753
 754 static void
 755 wireless_interface_init_config(struct wireless_interface *vif)
 756 {
 757         struct blob_attr *tb[__VIF_ATTR_MAX];
 758         struct blob_attr *cur;
 759
 760         vif->network = NULL;
 761         blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(vif->config), blob_len(vif->config));
 762
 763         if ((cur = tb[VIF_ATTR_NETWORK]))
 764                 vif->network = cur;
 765
 766         cur = tb[VIF_ATTR_ISOLATE];
 767         if (cur)
 768                 vif->isolate = blobmsg_get_bool(cur);
 769
 770         cur = tb[VIF_ATTR_MODE];
 771         if (cur)
 772                 vif->ap_mode = !strcmp(blobmsg_get_string(cur), "ap");
 773 }
 774
 775 static void
 776 vif_update(struct vlist_tree *tree, struct vlist_node *node_new,
 777            struct vlist_node *node_old)
 778 {
 779         struct wireless_interface *vif_old = container_of(node_old, struct wireless_interface, node);
 780         struct wireless_interface *vif_new = container_of(node_new, struct wireless_interface, node);
 781         struct wireless_device *wdev;
 782
 783         if (vif_old)
 784                 wdev = vif_old->wdev;
 785         else
 786                 wdev = vif_new->wdev;
 787
 788         if (vif_old && vif_new) {
 789                 free((void *) vif_old->section);
 790                 vif_old->section = strdup(vif_new->section);
 791                 if (blob_attr_equal(vif_old->config, vif_new->config)) {
 792                         free(vif_new);
 793                         return;
 794                 }
 795
 796                 D(WIRELESS, "Update wireless interface %s on device %s\n", vif_new->name, wdev->name);
 797                 wireless_interface_handle_link(vif_old, false);
 798                 free(vif_old->config);
 799                 vif_old->config = blob_memdup(vif_new->config);
 800                 vif_old->isolate = vif_new->isolate;
 801                 vif_old->ap_mode = vif_new->ap_mode;
 802                 wireless_interface_init_config(vif_old);
 803                 free(vif_new);
 804         } else if (vif_new) {
 805                 D(WIRELESS, "Create new wireless interface %s on device %s\n", vif_new->name, wdev->name);
 806                 vif_new->section = strdup(vif_new->section);
 807                 vif_new->config = blob_memdup(vif_new->config);
 808                 wireless_interface_init_config(vif_new);
 809         } else if (vif_old) {
 810                 D(WIRELESS, "Delete wireless interface %s on device %s\n", vif_old->name, wdev->name);
 811                 wireless_interface_handle_link(vif_old, false);
 812                 free((void *) vif_old->section);
 813                 free(vif_old->config);
 814                 free(vif_old);
 815         }
 816
 817         wdev_set_config_state(wdev, IFC_RELOAD);
 818 }
 819
 820 static void
 821 wireless_vlan_init_config(struct wireless_vlan *vlan)
 822 {
 823         struct blob_attr *tb[__VLAN_ATTR_MAX];
 824         struct blob_attr *cur;
 825
 826         vlan->network = NULL;
 827         blobmsg_parse(vlan_policy, __VLAN_ATTR_MAX, tb, blob_data(vlan->config), blob_len(vlan->config));
 828
 829         if ((cur = tb[VLAN_ATTR_NETWORK]))
 830                 vlan->network = cur;
 831
 832         cur = tb[VLAN_ATTR_ISOLATE];
 833         if (cur)
 834                 vlan->isolate = blobmsg_get_bool(cur);
 835 }
 836
 837 static void
 838 vlan_update(struct vlist_tree *tree, struct vlist_node *node_new,
 839             struct vlist_node *node_old)
 840 {
 841         struct wireless_vlan *vlan_old = container_of(node_old, struct wireless_vlan, node);
 842         struct wireless_vlan *vlan_new = container_of(node_new, struct wireless_vlan, node);
 843         struct wireless_device *wdev;
 844
 845         if (vlan_old)
 846                 wdev = vlan_old->wdev;
 847         else
 848                 wdev = vlan_new->wdev;
 849
 850         if (vlan_old && vlan_new) {
 851                 free((void *) vlan_old->section);
 852                 vlan_old->section = strdup(vlan_new->section);
 853                 if (blob_attr_equal(vlan_old->config, vlan_new->config)) {
 854                         free(vlan_new);
 855                         return;
 856                 }
 857
 858                 D(WIRELESS, "Update wireless vlan %s on device %s\n", vlan_new->name, wdev->name);
 859                 wireless_vlan_handle_link(vlan_old, false);
 860                 free(vlan_old->config);
 861                 vlan_old->config = blob_memdup(vlan_new->config);
 862                 vlan_old->isolate = vlan_new->isolate;
 863                 wireless_vlan_init_config(vlan_old);
 864                 free(vlan_new);
 865         } else if (vlan_new) {
 866                 D(WIRELESS, "Create new wireless vlan %s on device %s\n", vlan_new->name, wdev->name);
 867                 vlan_new->section = strdup(vlan_new->section);
 868                 vlan_new->config = blob_memdup(vlan_new->config);
 869                 wireless_vlan_init_config(vlan_new);
 870         } else if (vlan_old) {
 871                 D(WIRELESS, "Delete wireless interface %s on device %s\n", vlan_old->name, wdev->name);
 872                 wireless_vlan_handle_link(vlan_old, false);
 873                 free((void *) vlan_old->section);
 874                 free(vlan_old->config);
 875                 free(vlan_old);
 876         }
 877
 878         wdev_set_config_state(wdev, IFC_RELOAD);
 879 }
 880
 881 static void
 882 station_update(struct vlist_tree *tree, struct vlist_node *node_new,
 883                struct vlist_node *node_old)
 884 {
 885         struct wireless_station *sta_old = container_of(node_old, struct wireless_station, node);
 886         struct wireless_station *sta_new = container_of(node_new, struct wireless_station, node);
 887         struct wireless_device *wdev;
 888
 889         if (sta_old)
 890                 wdev = sta_old->wdev;
 891         else
 892                 wdev = sta_new->wdev;
 893
 894         if (sta_old && sta_new) {
 895                 free((void *) sta_old->section);
 896                 sta_old->section = strdup(sta_new->section);
 897                 if (blob_attr_equal(sta_old->config, sta_new->config)) {
 898                         free(sta_new);
 899                         return;
 900                 }
 901
 902                 D(WIRELESS, "Update wireless station %s on device %s\n", sta_new->name, wdev->name);
 903                 free(sta_old->config);
 904                 sta_old->config = blob_memdup(sta_new->config);
 905                 free(sta_new);
 906         } else if (sta_new) {
 907                 D(WIRELESS, "Create new wireless station %s on device %s\n", sta_new->name, wdev->name);
 908                 sta_new->section = strdup(sta_new->section);
 909                 sta_new->config = blob_memdup(sta_new->config);
 910         } else if (sta_old) {
 911                 D(WIRELESS, "Delete wireless station %s on device %s\n", sta_old->name, wdev->name);
 912                 free((void *) sta_old->section);
 913                 free(sta_old->config);
 914                 free(sta_old);
 915         }
 916
 917         wdev_set_config_state(wdev, IFC_RELOAD);
 918 }
 919
 920 static void
 921 wireless_proc_poll_fd(struct uloop_fd *fd, unsigned int events)
 922 {
 923         struct wireless_device *wdev = container_of(fd, struct wireless_device, script_proc_fd);
 924         char buf[128];
 925
 926         while (1) {
 927                 int b = read(fd->fd, buf, sizeof(buf));
 928                 if (b < 0) {
 929                         if (errno == EINTR)
 930                                 continue;
 931
 932                         if (errno == EAGAIN)
 933                                 return;
 934
 935                         goto done;
 936                 }
 937
 938                 if (!b)
 939                         goto done;
 940         }
 941
 942 done:
 943         uloop_timeout_set(&wdev->script_check, 0);
 944         wireless_close_script_proc_fd(wdev);
 945 }
 946
 947 static void
 948 wireless_device_check_script_tasks(struct uloop_timeout *timeout)
 949 {
 950         struct wireless_device *wdev = container_of(timeout, struct wireless_device, script_check);
 951         struct wireless_process *proc, *tmp;
 952         bool restart = false;
 953
 954         list_for_each_entry_safe(proc, tmp, &wdev->script_proc, list) {
 955                 if (wireless_process_check(proc))
 956                         continue;
 957
 958                 D(WIRELESS, "Wireless device '%s' pid %d has terminated\n", wdev->name, proc->pid);
 959                 if (proc->required)
 960                         restart = true;
 961
 962                 wireless_process_free(wdev, proc);
 963         }
 964
 965         if (restart)
 966                 wireless_device_retry_setup(wdev);
 967         else
 968                 uloop_timeout_set(&wdev->script_check, 1000);
 969 }
 970
 971 void
 972 wireless_device_create(struct wireless_driver *drv, const char *name, struct blob_attr *data)
 973 {
 974         struct wireless_device *wdev;
 975         char *name_buf;
 976         struct blob_attr *tb[__WDEV_ATTR_MAX];
 977         struct blob_attr *cur;
 978
 979         blobmsg_parse(wdev_policy, __WDEV_ATTR_MAX, tb, blob_data(data), blob_len(data));
 980
 981         wdev = calloc_a(sizeof(*wdev), &name_buf, strlen(name) + 1);
 982
 983         cur = tb[WDEV_ATTR_DISABLED];
 984         wdev->disabled = cur && blobmsg_get_bool(cur);
 985
 986         wdev->drv = drv;
 987         wdev->state = IFS_DOWN;
 988         wdev->config_state = IFC_NORMAL;
 989         wdev->name = strcpy(name_buf, name);
 990         wdev->config = data;
 991         wdev->handler_pending = false;
 992
 993         cur = tb[WDEV_ATTR_SERIALIZE];
 994         wdev->serialize = cur && blobmsg_get_bool(cur);
 995
 996         cur = tb[WDEV_ATTR_RECONF];
 997         wdev->reconf = cur && blobmsg_get_bool(cur);
 998
 999         wdev->retry_setup_failed = false;
1000         wdev->autostart = true;
1001         INIT_LIST_HEAD(&wdev->script_proc);
1002         vlist_init(&wdev->interfaces, avl_strcmp, vif_update);
1003         wdev->interfaces.keep_old = true;
1004         vlist_init(&wdev->vlans, avl_strcmp, vlan_update);
1005         wdev->vlans.keep_old = true;
1006         vlist_init(&wdev->stations, avl_strcmp, station_update);
1007         wdev->stations.keep_old = true;
1008
1009         wdev->timeout.cb = wireless_device_setup_timeout;
1010         wdev->script_task.cb = wireless_device_script_task_cb;
1011         wdev->script_task.dir_fd = drv_fd;
1012         wdev->script_task.log_prefix = wdev->name;
1013
1014         wdev->script_proc_fd.fd = -1;
1015         wdev->script_proc_fd.cb = wireless_proc_poll_fd;
1016
1017         wdev->script_check.cb = wireless_device_check_script_tasks;
1018
1019         vlist_add(&wireless_devices, &wdev->node, wdev->name);
1020 }
1021
1022 void
1023 wireless_station_create(struct wireless_device *wdev, char *vif, struct blob_attr *data, const char *section)
1024 {
1025         struct wireless_station *sta;
1026         struct blob_attr *tb[__STA_ATTR_MAX];
1027         struct blob_attr *cur;
1028         char *name_buf, *vif_buf;
1029         char name[8];
1030
1031         blobmsg_parse(sta_policy, __STA_ATTR_MAX, tb, blob_data(data), blob_len(data));
1032
1033         cur = tb[STA_ATTR_DISABLED];
1034         if (cur && blobmsg_get_bool(cur))
1035                 return;
1036
1037         sprintf(name, "%d", wdev->vlan_idx++);
1038
1039         sta = calloc_a(sizeof(*sta),
1040                        &name_buf, strlen(name) + 1,
1041                        &vif_buf, strlen(vif) + 1);
1042         sta->name = strcpy(name_buf, name);
1043         sta->vif = strcpy(vif_buf, vif);
1044         sta->wdev = wdev;
1045         sta->config = data;
1046         sta->section = section;
1047
1048         vlist_add(&wdev->stations, &sta->node, sta->name);
1049 }
1050
1051 static void
1052 wireless_station_status(struct wireless_station *sta, struct blob_buf *b)
1053 {
1054         void *i;
1055
1056         i = blobmsg_open_table(b, NULL);
1057         if (sta->section)
1058                 blobmsg_add_string(b, "section", sta->section);
1059         put_container(b, sta->config, "config");
1060         blobmsg_close_table(b, i);
1061 }
1062
1063 void
1064 wireless_vlan_create(struct wireless_device *wdev, char *vif, struct blob_attr *data, const char *section)
1065 {
1066         struct wireless_vlan *vlan;
1067         struct blob_attr *tb[__VLAN_ATTR_MAX];
1068         struct blob_attr *cur;
1069         char *name_buf, *vif_buf;
1070         char name[8];
1071
1072         blobmsg_parse(vlan_policy, __VLAN_ATTR_MAX, tb, blob_data(data), blob_len(data));
1073
1074         cur = tb[VLAN_ATTR_DISABLED];
1075         if (cur && blobmsg_get_bool(cur))
1076                 return;
1077
1078         sprintf(name, "%d", wdev->vlan_idx++);
1079
1080         vlan = calloc_a(sizeof(*vlan),
1081                        &name_buf, strlen(name) + 1,
1082                        &vif_buf, strlen(vif) + 1);
1083         vlan->name = strcpy(name_buf, name);
1084         vlan->vif = strcpy(vif_buf, vif);
1085         vlan->wdev = wdev;
1086         vlan->config = data;
1087         vlan->section = section;
1088         vlan->isolate = false;
1089
1090         vlist_add(&wdev->vlans, &vlan->node, vlan->name);
1091 }
1092
1093 static void
1094 wireless_vlan_status(struct wireless_vlan *vlan, struct blob_buf *b)
1095 {
1096         void *i;
1097
1098         i = blobmsg_open_table(b, NULL);
1099         if (vlan->section)
1100                 blobmsg_add_string(b, "section", vlan->section);
1101         if (vlan->ifname)
1102                 blobmsg_add_string(b, "ifname", vlan->ifname);
1103         put_container(b, vlan->config, "config");
1104         blobmsg_close_table(b, i);
1105 }
1106
1107 struct wireless_interface* wireless_interface_create(struct wireless_device *wdev, struct blob_attr *data, const char *section)
1108 {
1109         struct wireless_interface *vif;
1110         struct blob_attr *tb[__VIF_ATTR_MAX];
1111         struct blob_attr *cur;
1112         char *name_buf;
1113         char name[8];
1114
1115         blobmsg_parse(vif_policy, __VIF_ATTR_MAX, tb, blob_data(data), blob_len(data));
1116
1117         cur = tb[VIF_ATTR_DISABLED];
1118         if (cur && blobmsg_get_bool(cur))
1119                 return NULL;
1120
1121         sprintf(name, "%d", wdev->vif_idx++);
1122
1123         vif = calloc_a(sizeof(*vif),
1124                        &name_buf, strlen(name) + 1);
1125         vif->name = strcpy(name_buf, name);
1126         vif->wdev = wdev;
1127         vif->config = data;
1128         vif->section = section;
1129         vif->isolate = false;
1130
1131         vlist_add(&wdev->interfaces, &vif->node, vif->name);
1132
1133         return vlist_find(&wdev->interfaces, name, vif, node);
1134 }
1135
1136 static void
1137 wireless_interface_status(struct wireless_interface *iface, struct blob_buf *b)
1138 {
1139         struct wireless_vlan *vlan;
1140         struct wireless_station *sta;
1141         void *i, *j;
1142
1143         i = blobmsg_open_table(b, NULL);
1144         if (iface->section)
1145                 blobmsg_add_string(b, "section", iface->section);
1146         if (iface->ifname)
1147                 blobmsg_add_string(b, "ifname", iface->ifname);
1148         put_container(b, iface->config, "config");
1149         j = blobmsg_open_array(b, "vlans");
1150         vlist_for_each_element(&iface->wdev->vlans, vlan, node)
1151                 if (!strcmp(iface->name, vlan->vif))
1152                         wireless_vlan_status(vlan, b);
1153         blobmsg_close_array(b, j);
1154         j = blobmsg_open_array(b, "stations");
1155         vlist_for_each_element(&iface->wdev->stations, sta, node)
1156                 if (!strcmp(iface->name, sta->vif))
1157                         wireless_station_status(sta, b);
1158         blobmsg_close_array(b, j);
1159         blobmsg_close_table(b, i);
1160 }
1161
1162 void
1163 wireless_device_status(struct wireless_device *wdev, struct blob_buf *b)
1164 {
1165         struct wireless_interface *iface;
1166         void *c, *i;
1167
1168         c = blobmsg_open_table(b, wdev->name);
1169         blobmsg_add_u8(b, "up", wdev->state == IFS_UP);
1170         blobmsg_add_u8(b, "pending", wdev->state == IFS_SETUP || wdev->state == IFS_TEARDOWN);
1171         blobmsg_add_u8(b, "autostart", wdev->autostart);
1172         blobmsg_add_u8(b, "disabled", wdev->disabled);
1173         blobmsg_add_u8(b, "retry_setup_failed", wdev->retry_setup_failed);
1174         put_container(b, wdev->config, "config");
1175
1176         i = blobmsg_open_array(b, "interfaces");
1177         vlist_for_each_element(&wdev->interfaces, iface, node)
1178                 wireless_interface_status(iface, b);
1179         blobmsg_close_array(b, i);
1180         blobmsg_close_table(b, c);
1181 }
1182
1183 void
1184 wireless_device_get_validate(struct wireless_device *wdev, struct blob_buf *b)
1185 {
1186         struct uci_blob_param_list *p;
1187         void *c, *d;
1188         int i;
1189
1190         c = blobmsg_open_table(b, wdev->name);
1191
1192         d = blobmsg_open_table(b, "device");
1193         p = wdev->drv->device.config;
1194         for (i = 0; i < p->n_params; i++)
1195                 blobmsg_add_string(b, p->params[i].name, uci_get_validate_string(p, i));
1196         blobmsg_close_table(b, d);
1197
1198         d = blobmsg_open_table(b, "interface");
1199         p = wdev->drv->interface.config;
1200         for (i = 0; i < p->n_params; i++)
1201                 blobmsg_add_string(b, p->params[i].name, uci_get_validate_string(p, i));
1202         blobmsg_close_table(b, d);
1203
1204         blobmsg_close_table(b, c);
1205 }
1206
1207 static void
1208 wireless_interface_set_data(struct wireless_interface *vif)
1209 {
1210         enum {
1211                 VIF_DATA_IFNAME,
1212                 __VIF_DATA_MAX,
1213         };
1214         static const struct blobmsg_policy data_policy[__VIF_DATA_MAX] = {
1215                 [VIF_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
1216         };
1217         struct blob_attr *tb[__VIF_DATA_MAX];
1218         struct blob_attr *cur;
1219
1220         blobmsg_parse(data_policy, __VIF_DATA_MAX, tb,
1221                       blobmsg_data(vif->data), blobmsg_data_len(vif->data));
1222
1223         if ((cur = tb[VIF_DATA_IFNAME]))
1224                 vif->ifname = blobmsg_data(cur);
1225 }
1226
1227 static void
1228 wireless_vlan_set_data(struct wireless_vlan *vlan)
1229 {
1230         enum {
1231                 VLAN_DATA_IFNAME,
1232                 __VLAN_DATA_MAX,
1233         };
1234         static const struct blobmsg_policy data_policy[__VLAN_DATA_MAX] = {
1235                 [VLAN_DATA_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
1236         };
1237         struct blob_attr *tb[__VLAN_DATA_MAX];
1238         struct blob_attr *cur;
1239
1240         blobmsg_parse(data_policy, __VLAN_DATA_MAX, tb,
1241                       blobmsg_data(vlan->data), blobmsg_data_len(vlan->data));
1242
1243         if ((cur = tb[VLAN_DATA_IFNAME]))
1244                 vlan->ifname = blobmsg_data(cur);
1245 }
1246
1247 static int
1248 wireless_device_add_process(struct wireless_device *wdev, struct blob_attr *data)
1249 {
1250         enum {
1251                 PROC_ATTR_PID,
1252                 PROC_ATTR_EXE,
1253                 PROC_ATTR_REQUIRED,
1254                 PROC_ATTR_KEEP,
1255                 __PROC_ATTR_MAX
1256         };
1257         static const struct blobmsg_policy proc_policy[__PROC_ATTR_MAX] = {
1258                 [PROC_ATTR_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 },
1259                 [PROC_ATTR_EXE] = { .name = "exe", .type = BLOBMSG_TYPE_STRING },
1260                 [PROC_ATTR_REQUIRED] = { .name = "required", .type = BLOBMSG_TYPE_BOOL },
1261                 [PROC_ATTR_KEEP] = { .name = "keep", .type = BLOBMSG_TYPE_BOOL },
1262         };
1263         struct blob_attr *tb[__PROC_ATTR_MAX];
1264         struct wireless_process *proc;
1265         char *name;
1266         int pid;
1267
1268         if (!data)
1269                 return UBUS_STATUS_INVALID_ARGUMENT;
1270
1271         blobmsg_parse(proc_policy, __PROC_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
1272         if (!tb[PROC_ATTR_PID] || !tb[PROC_ATTR_EXE])
1273                 return UBUS_STATUS_INVALID_ARGUMENT;
1274
1275         pid = blobmsg_get_u32(tb[PROC_ATTR_PID]);
1276         if (pid < 2)
1277                 return UBUS_STATUS_INVALID_ARGUMENT;
1278
1279         proc = calloc_a(sizeof(*proc),
1280                 &name, strlen(blobmsg_data(tb[PROC_ATTR_EXE])) + 1);
1281
1282         proc->pid = pid;
1283         proc->exe = strcpy(name, blobmsg_data(tb[PROC_ATTR_EXE]));
1284
1285         if (tb[PROC_ATTR_REQUIRED])
1286                 proc->required = blobmsg_get_bool(tb[PROC_ATTR_REQUIRED]);
1287
1288         if (tb[PROC_ATTR_KEEP])
1289                 proc->keep = blobmsg_get_bool(tb[PROC_ATTR_KEEP]);
1290
1291         D(WIRELESS, "Wireless device '%s' add pid %d\n", wdev->name, proc->pid);
1292         list_add(&proc->list, &wdev->script_proc);
1293         uloop_timeout_set(&wdev->script_check, 0);
1294
1295         return 0;
1296 }
1297
1298 static int
1299 wireless_device_process_kill_all(struct wireless_device *wdev, struct blob_attr *data,
1300                                  struct ubus_request_data *req)
1301 {
1302         enum {
1303                 KILL_ATTR_SIGNAL,
1304                 KILL_ATTR_IMMEDIATE,
1305                 __KILL_ATTR_MAX
1306         };
1307         static const struct blobmsg_policy kill_policy[__KILL_ATTR_MAX] = {
1308                 [KILL_ATTR_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
1309                 [KILL_ATTR_IMMEDIATE] = { .name = "immediate", .type = BLOBMSG_TYPE_BOOL },
1310         };
1311         struct blob_attr *tb[__KILL_ATTR_MAX];
1312         struct blob_attr *cur;
1313         bool immediate = false;
1314         int signal = SIGTERM;
1315
1316         blobmsg_parse(kill_policy, __KILL_ATTR_MAX, tb, blobmsg_data(data), blobmsg_data_len(data));
1317
1318         if ((cur = tb[KILL_ATTR_SIGNAL]))
1319                 signal = blobmsg_get_u32(cur);
1320
1321         if ((cur = tb[KILL_ATTR_IMMEDIATE]))
1322                 immediate = blobmsg_get_bool(cur);
1323
1324         if (wdev->state != IFS_TEARDOWN || wdev->kill_request)
1325                 return UBUS_STATUS_PERMISSION_DENIED;
1326
1327         wireless_process_kill_all(wdev, signal, immediate);
1328
1329         if (list_empty(&wdev->script_proc))
1330                 return 0;
1331
1332         wdev->kill_request = calloc(1, sizeof(*wdev->kill_request));
1333         ubus_defer_request(ubus_ctx, req, wdev->kill_request);
1334
1335         return 0;
1336 }
1337
1338 static int
1339 wireless_device_set_retry(struct wireless_device *wdev, struct blob_attr *data)
1340 {
1341         static const struct blobmsg_policy retry_policy = {
1342                 .name = "retry", .type = BLOBMSG_TYPE_INT32
1343         };
1344         struct blob_attr *val;
1345
1346         blobmsg_parse(&retry_policy, 1, &val, blobmsg_data(data), blobmsg_data_len(data));
1347         if (!val)
1348                 return UBUS_STATUS_INVALID_ARGUMENT;
1349
1350         wdev->retry = blobmsg_get_u32(val);
1351         return 0;
1352 }
1353
1354 enum {
1355         NOTIFY_CMD_UP = 0,
1356         NOTIFY_CMD_SET_DATA = 1,
1357         NOTIFY_CMD_PROCESS_ADD = 2,
1358         NOTIFY_CMD_PROCESS_KILL_ALL = 3,
1359         NOTIFY_CMD_SET_RETRY = 4,
1360 };
1361
1362 int
1363 wireless_device_notify(struct wireless_device *wdev, struct blob_attr *data,
1364                        struct ubus_request_data *req)
1365 {
1366         enum {
1367                 NOTIFY_ATTR_COMMAND,
1368                 NOTIFY_ATTR_VIF,
1369                 NOTIFY_ATTR_VLAN,
1370                 NOTIFY_ATTR_DATA,
1371                 __NOTIFY_MAX,
1372         };
1373         static const struct blobmsg_policy notify_policy[__NOTIFY_MAX] = {
1374                 [NOTIFY_ATTR_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_INT32 },
1375                 [NOTIFY_ATTR_VIF] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
1376                 [NOTIFY_ATTR_VLAN] = { .name = "vlan", .type = BLOBMSG_TYPE_STRING },
1377                 [NOTIFY_ATTR_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
1378         };
1379         struct wireless_interface *vif = NULL;
1380         struct wireless_vlan *vlan = NULL;
1381         struct blob_attr *tb[__NOTIFY_MAX];
1382         struct blob_attr *cur, **pdata;
1383
1384         blobmsg_parse(notify_policy, __NOTIFY_MAX, tb, blob_data(data), blob_len(data));
1385
1386         if (!tb[NOTIFY_ATTR_COMMAND])
1387                 return UBUS_STATUS_INVALID_ARGUMENT;
1388
1389         if ((cur = tb[NOTIFY_ATTR_VIF]) != NULL) {
1390                 vif = vlist_find(&wdev->interfaces, blobmsg_data(cur), vif, node);
1391                 if (!vif)
1392                         return UBUS_STATUS_NOT_FOUND;
1393         }
1394
1395         if ((cur = tb[NOTIFY_ATTR_VLAN]) != NULL) {
1396                 vlan = vlist_find(&wdev->vlans, blobmsg_data(cur), vlan, node);
1397                 if (!vlan)
1398                         return UBUS_STATUS_NOT_FOUND;
1399         }
1400
1401         cur = tb[NOTIFY_ATTR_DATA];
1402         if (!cur)
1403                 return UBUS_STATUS_INVALID_ARGUMENT;
1404
1405         switch (blobmsg_get_u32(tb[NOTIFY_ATTR_COMMAND])) {
1406         case NOTIFY_CMD_UP:
1407                 if (vif || vlan)
1408                         return UBUS_STATUS_INVALID_ARGUMENT;
1409
1410                 if (wdev->state != IFS_SETUP)
1411                         return UBUS_STATUS_PERMISSION_DENIED;
1412
1413                 wireless_device_mark_up(wdev);
1414                 break;
1415         case NOTIFY_CMD_SET_DATA:
1416                 if (vif)
1417                         pdata = &vif->data;
1418                 else if (vlan)
1419                         pdata = &vlan->data;
1420                 else
1421                         pdata = &wdev->data;
1422
1423                 if (*pdata)
1424                         return UBUS_STATUS_INVALID_ARGUMENT;
1425
1426                 *pdata = blob_memdup(cur);
1427                 if (vif)
1428                         wireless_interface_set_data(vif);
1429                 else if (vlan)
1430                         wireless_vlan_set_data(vlan);
1431                 break;
1432         case NOTIFY_CMD_PROCESS_ADD:
1433                 return wireless_device_add_process(wdev, cur);
1434         case NOTIFY_CMD_PROCESS_KILL_ALL:
1435                 return wireless_device_process_kill_all(wdev, cur, req);
1436         case NOTIFY_CMD_SET_RETRY:
1437                 return wireless_device_set_retry(wdev, cur);
1438         default:
1439                 return UBUS_STATUS_INVALID_ARGUMENT;
1440         }
1441
1442         return 0;
1443 }
1444
1445 void
1446 wireless_start_pending(void)
1447 {
1448         struct wireless_device *wdev;
1449
1450         vlist_for_each_element(&wireless_devices, wdev, node)
1451                 __wireless_device_set_up(wdev, 0);
1452 }