ubus.c

   1 /*
   2  * netifd - network interface daemon
   3  * Copyright (C) 2012 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 #define _GNU_SOURCE
  15
  16 #include <arpa/inet.h>
  17 #include <string.h>
  18 #include <stdio.h>
  19
  20 #include "netifd.h"
  21 #include "interface.h"
  22 #include "proto.h"
  23 #include "ubus.h"
  24 #include "system.h"
  25 #include "wireless.h"
  26
  27 struct ubus_context *ubus_ctx = NULL;
  28 static struct blob_buf b;
  29 static const char *ubus_path;
  30
  31 /* global object */
  32
  33 static int
  34 netifd_handle_restart(struct ubus_context *ctx, struct ubus_object *obj,
  35                       struct ubus_request_data *req, const char *method,
  36                       struct blob_attr *msg)
  37 {
  38         netifd_restart();
  39         return 0;
  40 }
  41
  42 static int
  43 netifd_handle_reload(struct ubus_context *ctx, struct ubus_object *obj,
  44                      struct ubus_request_data *req, const char *method,
  45                      struct blob_attr *msg)
  46 {
  47         netifd_reload();
  48         return 0;
  49 }
  50
  51 enum {
  52         HR_TARGET,
  53         HR_V6,
  54         HR_INTERFACE,
  55         __HR_MAX
  56 };
  57
  58 static const struct blobmsg_policy route_policy[__HR_MAX] = {
  59         [HR_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
  60         [HR_V6] = { .name = "v6", .type = BLOBMSG_TYPE_BOOL },
  61         [HR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
  62 };
  63
  64 static int
  65 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
  66                       struct ubus_request_data *req, const char *method,
  67                       struct blob_attr *msg)
  68 {
  69         struct blob_attr *tb[__HR_MAX];
  70         struct interface *iface = NULL;
  71         union if_addr a;
  72         bool v6 = false;
  73
  74         blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
  75         if (!tb[HR_TARGET])
  76                 return UBUS_STATUS_INVALID_ARGUMENT;
  77
  78         if (tb[HR_V6])
  79                 v6 = blobmsg_get_bool(tb[HR_V6]);
  80
  81         if (tb[HR_INTERFACE])
  82                 iface = vlist_find(&interfaces, blobmsg_data(tb[HR_INTERFACE]), iface, node);
  83
  84         memset(&a, 0, sizeof(a));
  85         if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
  86                 return UBUS_STATUS_INVALID_ARGUMENT;
  87
  88
  89         iface = interface_ip_add_target_route(&a, v6, iface);
  90         if (!iface)
  91                 return UBUS_STATUS_NOT_FOUND;
  92
  93         blob_buf_init(&b, 0);
  94         blobmsg_add_string(&b, "interface", iface->name);
  95         ubus_send_reply(ctx, req, b.head);
  96
  97         return 0;
  98 }
  99
 100 static int
 101 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
 102                           struct ubus_request_data *req, const char *method,
 103                           struct blob_attr *msg)
 104 {
 105         blob_buf_init(&b, 0);
 106         proto_dump_handlers(&b);
 107         ubus_send_reply(ctx, req, b.head);
 108
 109         return 0;
 110 }
 111
 112
 113 enum {
 114         DI_NAME,
 115         __DI_MAX
 116 };
 117
 118 static const struct blobmsg_policy dynamic_policy[__DI_MAX] = {
 119         [DI_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 120 };
 121
 122 static int
 123 netifd_add_dynamic(struct ubus_context *ctx, struct ubus_object *obj,
 124                       struct ubus_request_data *req, const char *method,
 125                       struct blob_attr *msg)
 126 {
 127         struct blob_attr *tb[__DI_MAX];
 128         struct interface *iface;
 129         struct blob_attr *config;
 130         struct device *dev;
 131
 132         blobmsg_parse(dynamic_policy, __DI_MAX, tb, blob_data(msg), blob_len(msg));
 133
 134         if (!tb[DI_NAME])
 135                 return UBUS_STATUS_INVALID_ARGUMENT;
 136
 137         const char *name = blobmsg_get_string(tb[DI_NAME]);
 138
 139         iface = interface_alloc(name, msg);
 140         if (!iface)
 141                 return UBUS_STATUS_UNKNOWN_ERROR;
 142
 143         iface->device_config = true;
 144
 145         config = blob_memdup(msg);
 146         if (!config)
 147                 goto error;
 148
 149         interface_add(iface, config);
 150         interface_set_dynamic(iface);
 151
 152         // need to look up the interface name again, in case of config update,
 153         iface = vlist_find(&interfaces, name, iface, node);
 154         if (!iface)
 155                 return UBUS_STATUS_UNKNOWN_ERROR;
 156
 157         dev = iface->main_dev.dev;
 158         if (!dev || !dev->default_config)
 159                 return UBUS_STATUS_UNKNOWN_ERROR;
 160
 161         device_set_config(dev, dev->type, msg);
 162         return UBUS_STATUS_OK;
 163
 164 error:
 165         free(iface);
 166         return UBUS_STATUS_UNKNOWN_ERROR;
 167 }
 168
 169 static struct ubus_method main_object_methods[] = {
 170         { .name = "restart", .handler = netifd_handle_restart },
 171         { .name = "reload", .handler = netifd_handle_reload },
 172         UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
 173         { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
 174         UBUS_METHOD("add_dynamic", netifd_add_dynamic, dynamic_policy),
 175 };
 176
 177 static struct ubus_object_type main_object_type =
 178         UBUS_OBJECT_TYPE("netifd", main_object_methods);
 179
 180 static struct ubus_object main_object = {
 181         .name = "network",
 182         .type = &main_object_type,
 183         .methods = main_object_methods,
 184         .n_methods = ARRAY_SIZE(main_object_methods),
 185 };
 186
 187 enum {
 188         DEV_NAME,
 189         __DEV_MAX,
 190 };
 191
 192 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
 193         [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 194 };
 195
 196 static int
 197 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
 198                   struct ubus_request_data *req, const char *method,
 199                   struct blob_attr *msg)
 200 {
 201         struct device *dev = NULL;
 202         struct blob_attr *tb[__DEV_MAX];
 203
 204         blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
 205
 206         if (tb[DEV_NAME]) {
 207                 dev = device_get(blobmsg_data(tb[DEV_NAME]), false);
 208                 if (!dev)
 209                         return UBUS_STATUS_INVALID_ARGUMENT;
 210         }
 211
 212         blob_buf_init(&b, 0);
 213         device_dump_status(&b, dev);
 214         ubus_send_reply(ctx, req, b.head);
 215
 216         return 0;
 217 }
 218
 219 enum {
 220         ALIAS_ATTR_ALIAS,
 221         ALIAS_ATTR_DEV,
 222         __ALIAS_ATTR_MAX,
 223 };
 224
 225 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
 226         [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
 227         [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
 228 };
 229
 230 static int
 231 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
 232                     struct ubus_request_data *req, const char *method,
 233                     struct blob_attr *msg)
 234 {
 235         struct device *dev = NULL;
 236         struct blob_attr *tb[__ALIAS_ATTR_MAX];
 237         struct blob_attr *cur;
 238         int rem;
 239
 240         blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 241
 242         if (!tb[ALIAS_ATTR_ALIAS])
 243                 return UBUS_STATUS_INVALID_ARGUMENT;
 244
 245         if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
 246                 dev = device_get(blobmsg_data(cur), true);
 247                 if (!dev)
 248                         return UBUS_STATUS_NOT_FOUND;
 249         }
 250
 251         blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
 252                 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
 253                         goto error;
 254
 255                 if (!blobmsg_check_attr(cur, NULL))
 256                         goto error;
 257
 258                 alias_notify_device(blobmsg_data(cur), dev);
 259         }
 260         return 0;
 261
 262 error:
 263         device_free_unused(dev);
 264         return UBUS_STATUS_INVALID_ARGUMENT;
 265 }
 266
 267 enum {
 268         DEV_STATE_NAME,
 269         DEV_STATE_DEFER,
 270         __DEV_STATE_MAX,
 271 };
 272
 273 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
 274         [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 275         [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
 276 };
 277
 278 static int
 279 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
 280                         struct ubus_request_data *req, const char *method,
 281                         struct blob_attr *msg)
 282 {
 283         struct device *dev = NULL;
 284         struct blob_attr *tb[__DEV_STATE_MAX];
 285         struct blob_attr *cur;
 286
 287         blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
 288
 289         cur = tb[DEV_STATE_NAME];
 290         if (!cur)
 291                 return UBUS_STATUS_INVALID_ARGUMENT;
 292
 293         dev = device_get(blobmsg_data(cur), false);
 294         if (!dev)
 295                 return UBUS_STATUS_NOT_FOUND;
 296
 297         cur = tb[DEV_STATE_DEFER];
 298         if (cur)
 299                 device_set_deferred(dev, !!blobmsg_get_u8(cur));
 300
 301         return 0;
 302 }
 303
 304 static struct ubus_method dev_object_methods[] = {
 305         UBUS_METHOD("status", netifd_dev_status, dev_policy),
 306         UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
 307         UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
 308 };
 309
 310 static struct ubus_object_type dev_object_type =
 311         UBUS_OBJECT_TYPE("device", dev_object_methods);
 312
 313 static struct ubus_object dev_object = {
 314         .name = "network.device",
 315         .type = &dev_object_type,
 316         .methods = dev_object_methods,
 317         .n_methods = ARRAY_SIZE(dev_object_methods),
 318 };
 319
 320 static void
 321 netifd_ubus_add_fd(void)
 322 {
 323         ubus_add_uloop(ubus_ctx);
 324         system_fd_set_cloexec(ubus_ctx->sock.fd);
 325 }
 326
 327 static void
 328 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
 329 {
 330         static struct uloop_timeout retry = {
 331                 .cb = netifd_ubus_reconnect_timer,
 332         };
 333         int t = 2;
 334
 335         if (ubus_reconnect(ubus_ctx, ubus_path) != 0) {
 336                 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
 337                 uloop_timeout_set(&retry, t * 1000);
 338                 return;
 339         }
 340
 341         DPRINTF("reconnected to ubus, new id: %08x\n", ubus_ctx->local_id);
 342         netifd_ubus_add_fd();
 343 }
 344
 345 static void
 346 netifd_ubus_connection_lost(struct ubus_context *ctx)
 347 {
 348         netifd_ubus_reconnect_timer(NULL);
 349 }
 350
 351 /* per-interface object */
 352
 353 static int
 354 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
 355                  struct ubus_request_data *req, const char *method,
 356                  struct blob_attr *msg)
 357 {
 358         struct interface *iface;
 359
 360         iface = container_of(obj, struct interface, ubus);
 361         interface_set_up(iface);
 362
 363         return 0;
 364 }
 365
 366 static int
 367 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
 368                    struct ubus_request_data *req, const char *method,
 369                    struct blob_attr *msg)
 370 {
 371         struct interface *iface;
 372
 373         iface = container_of(obj, struct interface, ubus);
 374         interface_set_down(iface);
 375
 376         return 0;
 377 }
 378
 379 static void
 380 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
 381 {
 382         struct interface_error *error;
 383         void *e, *e2, *e3;
 384         int i;
 385
 386         e = blobmsg_open_array(b, "errors");
 387         list_for_each_entry(error, &iface->errors, list) {
 388                 e2 = blobmsg_open_table(b, NULL);
 389
 390                 blobmsg_add_string(b, "subsystem", error->subsystem);
 391                 blobmsg_add_string(b, "code", error->code);
 392                 if (error->data[0]) {
 393                         e3 = blobmsg_open_array(b, "data");
 394                         for (i = 0; error->data[i]; i++)
 395                                 blobmsg_add_string(b, NULL, error->data[i]);
 396                         blobmsg_close_array(b, e3);
 397                 }
 398
 399                 blobmsg_close_table(b, e2);
 400         }
 401         blobmsg_close_array(b, e);
 402 }
 403
 404 static void
 405 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6,
 406                                bool enabled)
 407 {
 408         struct device_addr *addr;
 409         char *buf;
 410         void *a;
 411         int buflen = 128;
 412         int af;
 413
 414         time_t now = system_get_rtime();
 415         vlist_for_each_element(&ip->addr, addr, node) {
 416                 if (addr->enabled != enabled)
 417                         continue;
 418
 419                 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
 420                         af = AF_INET;
 421                 else
 422                         af = AF_INET6;
 423
 424                 if (af != (v6 ? AF_INET6 : AF_INET))
 425                         continue;
 426
 427                 a = blobmsg_open_table(&b, NULL);
 428
 429                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 430                 inet_ntop(af, &addr->addr, buf, buflen);
 431                 blobmsg_add_string_buffer(&b);
 432
 433                 blobmsg_add_u32(&b, "mask", addr->mask);
 434
 435                 if (addr->preferred_until) {
 436                         int preferred = addr->preferred_until - now;
 437                         if (preferred < 0)
 438                                 preferred = 0;
 439                         blobmsg_add_u32(&b, "preferred", preferred);
 440                 }
 441
 442                 if (addr->valid_until)
 443                         blobmsg_add_u32(&b, "valid", addr->valid_until - now);
 444
 445                 if (addr->pclass)
 446                         blobmsg_add_string(&b, "class", addr->pclass);
 447
 448                 blobmsg_close_table(&b, a);
 449         }
 450 }
 451
 452 static void
 453 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
 454 {
 455         struct device_route *route;
 456         int buflen = 128;
 457         char *buf;
 458         void *r;
 459         int af;
 460
 461         time_t now = system_get_rtime();
 462         vlist_for_each_element(&ip->route, route, node) {
 463                 if (route->enabled != enabled)
 464                         continue;
 465
 466                 if ((ip->no_defaultroute == enabled) && !route->mask)
 467                         continue;
 468
 469                 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
 470                         af = AF_INET;
 471                 else
 472                         af = AF_INET6;
 473
 474                 r = blobmsg_open_table(&b, NULL);
 475
 476                 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
 477                 inet_ntop(af, &route->addr, buf, buflen);
 478                 blobmsg_add_string_buffer(&b);
 479
 480                 blobmsg_add_u32(&b, "mask", route->mask);
 481
 482                 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
 483                 inet_ntop(af, &route->nexthop, buf, buflen);
 484                 blobmsg_add_string_buffer(&b);
 485
 486                 if (route->flags & DEVROUTE_MTU)
 487                         blobmsg_add_u32(&b, "mtu", route->mtu);
 488
 489                 if (route->flags & DEVROUTE_METRIC)
 490                         blobmsg_add_u32(&b, "metric", route->metric);
 491
 492                 if (route->flags & DEVROUTE_TABLE)
 493                         blobmsg_add_u32(&b, "table", route->table);
 494
 495                 if (route->valid_until)
 496                         blobmsg_add_u32(&b, "valid", route->valid_until - now);
 497
 498                 buf = blobmsg_alloc_string_buffer(&b, "source", buflen);
 499                 inet_ntop(af, &route->source, buf, buflen);
 500                 snprintf(buf + strlen(buf), 4, "/%u", route->sourcemask);
 501                 blobmsg_add_string_buffer(&b);
 502
 503                 blobmsg_close_table(&b, r);
 504         }
 505 }
 506
 507
 508 static void
 509 interface_ip_dump_prefix_list(struct interface_ip_settings *ip)
 510 {
 511         struct device_prefix *prefix;
 512         char *buf;
 513         void *a, *c;
 514         const int buflen = INET6_ADDRSTRLEN;
 515
 516         time_t now = system_get_rtime();
 517         vlist_for_each_element(&ip->prefix, prefix, node) {
 518                 a = blobmsg_open_table(&b, NULL);
 519
 520                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 521                 inet_ntop(AF_INET6, &prefix->addr, buf, buflen);
 522                 blobmsg_add_string_buffer(&b);
 523
 524                 blobmsg_add_u32(&b, "mask", prefix->length);
 525
 526                 if (prefix->preferred_until) {
 527                         int preferred = prefix->preferred_until - now;
 528                         if (preferred < 0)
 529                                 preferred = 0;
 530                         blobmsg_add_u32(&b, "preferred", preferred);
 531                 }
 532
 533                 if (prefix->valid_until)
 534                         blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
 535
 536                 blobmsg_add_string(&b, "class", prefix->pclass);
 537
 538                 c = blobmsg_open_table(&b, "assigned");
 539                 struct device_prefix_assignment *assign;
 540                 list_for_each_entry(assign, &prefix->assignments, head) {
 541                         if (!assign->name[0])
 542                                 continue;
 543
 544                         struct in6_addr addr = prefix->addr;
 545                         addr.s6_addr32[1] |= htonl(assign->assigned);
 546
 547                         void *d = blobmsg_open_table(&b, assign->name);
 548
 549                         buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 550                         inet_ntop(AF_INET6, &addr, buf, buflen);
 551                         blobmsg_add_string_buffer(&b);
 552
 553                         blobmsg_add_u32(&b, "mask", assign->length);
 554
 555                         blobmsg_close_table(&b, d);
 556                 }
 557                 blobmsg_close_table(&b, c);
 558
 559                 blobmsg_close_table(&b, a);
 560         }
 561 }
 562
 563
 564 static void
 565 interface_ip_dump_prefix_assignment_list(struct interface *iface)
 566 {
 567         void *a;
 568         char *buf;
 569         const int buflen = INET6_ADDRSTRLEN;
 570         time_t now = system_get_rtime();
 571
 572         struct device_prefix *prefix;
 573         list_for_each_entry(prefix, &prefixes, head) {
 574                 struct device_prefix_assignment *assign;
 575                 list_for_each_entry(assign, &prefix->assignments, head) {
 576                         if (strcmp(assign->name, iface->name))
 577                                 continue;
 578
 579                         struct in6_addr addr = prefix->addr;
 580                         addr.s6_addr32[1] |= htonl(assign->assigned);
 581
 582                         a = blobmsg_open_table(&b, NULL);
 583
 584                         buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 585                         inet_ntop(AF_INET6, &addr, buf, buflen);
 586                         blobmsg_add_string_buffer(&b);
 587
 588                         blobmsg_add_u32(&b, "mask", assign->length);
 589
 590                         if (prefix->preferred_until) {
 591                                 int preferred = prefix->preferred_until - now;
 592                                 if (preferred < 0)
 593                                         preferred = 0;
 594                                 blobmsg_add_u32(&b, "preferred", preferred);
 595                         }
 596
 597                         if (prefix->valid_until)
 598                                 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
 599
 600                         blobmsg_close_table(&b, a);
 601                 }
 602         }
 603 }
 604
 605
 606 static void
 607 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip,
 608                                   bool enabled)
 609 {
 610         struct dns_server *dns;
 611         int buflen = 128;
 612         char *buf;
 613
 614         vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
 615                 if (ip->no_dns == enabled)
 616                         continue;
 617
 618                 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
 619                 inet_ntop(dns->af, &dns->addr, buf, buflen);
 620                 blobmsg_add_string_buffer(&b);
 621         }
 622 }
 623
 624 static void
 625 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip,
 626                                   bool enabled)
 627 {
 628         struct dns_search_domain *dns;
 629
 630         vlist_simple_for_each_element(&ip->dns_search, dns, node) {
 631                 if (ip->no_dns == enabled)
 632                         continue;
 633
 634                 blobmsg_add_string(&b, NULL, dns->name);
 635         }
 636 }
 637
 638 static void
 639 netifd_dump_status(struct interface *iface)
 640 {
 641         struct interface_data *data;
 642         struct device *dev;
 643         void *a, *inactive;
 644
 645         blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
 646         blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
 647         blobmsg_add_u8(&b, "available", iface->available);
 648         blobmsg_add_u8(&b, "autostart", iface->autostart);
 649
 650         if (iface->state == IFS_UP) {
 651                 time_t cur = system_get_rtime();
 652                 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
 653                 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
 654         }
 655
 656         if (iface->proto_handler)
 657                 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
 658
 659         dev = iface->main_dev.dev;
 660         if (dev && !dev->hidden &&
 661             !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
 662                 blobmsg_add_string(&b, "device", dev->ifname);
 663
 664         if (iface->state == IFS_UP) {
 665                 if (iface->ip4table)
 666                         blobmsg_add_u32(&b, "ip4table", iface->ip4table);
 667                 if (iface->ip6table)
 668                         blobmsg_add_u32(&b, "ip6table", iface->ip6table);
 669                 blobmsg_add_u32(&b, "metric", iface->metric);
 670                 blobmsg_add_u8(&b, "delegation", !iface->proto_ip.no_delegation);
 671                 a = blobmsg_open_array(&b, "ipv4-address");
 672                 interface_ip_dump_address_list(&iface->config_ip, false, true);
 673                 interface_ip_dump_address_list(&iface->proto_ip, false, true);
 674                 blobmsg_close_array(&b, a);
 675                 a = blobmsg_open_array(&b, "ipv6-address");
 676                 interface_ip_dump_address_list(&iface->config_ip, true, true);
 677                 interface_ip_dump_address_list(&iface->proto_ip, true, true);
 678                 blobmsg_close_array(&b, a);
 679                 a = blobmsg_open_array(&b, "ipv6-prefix");
 680                 interface_ip_dump_prefix_list(&iface->config_ip);
 681                 interface_ip_dump_prefix_list(&iface->proto_ip);
 682                 blobmsg_close_array(&b, a);
 683                 a = blobmsg_open_array(&b, "ipv6-prefix-assignment");
 684                 interface_ip_dump_prefix_assignment_list(iface);
 685                 blobmsg_close_array(&b, a);
 686                 a = blobmsg_open_array(&b, "route");
 687                 interface_ip_dump_route_list(&iface->config_ip, true);
 688                 interface_ip_dump_route_list(&iface->proto_ip, true);
 689                 blobmsg_close_array(&b, a);
 690                 a = blobmsg_open_array(&b, "dns-server");
 691                 interface_ip_dump_dns_server_list(&iface->config_ip, true);
 692                 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
 693                 blobmsg_close_array(&b, a);
 694                 a = blobmsg_open_array(&b, "dns-search");
 695                 interface_ip_dump_dns_search_list(&iface->config_ip, true);
 696                 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
 697                 blobmsg_close_array(&b, a);
 698
 699                 inactive = blobmsg_open_table(&b, "inactive");
 700                 a = blobmsg_open_array(&b, "ipv4-address");
 701                 interface_ip_dump_address_list(&iface->config_ip, false, false);
 702                 interface_ip_dump_address_list(&iface->proto_ip, false, false);
 703                 blobmsg_close_array(&b, a);
 704                 a = blobmsg_open_array(&b, "ipv6-address");
 705                 interface_ip_dump_address_list(&iface->config_ip, true, false);
 706                 interface_ip_dump_address_list(&iface->proto_ip, true, false);
 707                 blobmsg_close_array(&b, a);
 708                 a = blobmsg_open_array(&b, "route");
 709                 interface_ip_dump_route_list(&iface->config_ip, false);
 710                 interface_ip_dump_route_list(&iface->proto_ip, false);
 711                 blobmsg_close_array(&b, a);
 712                 a = blobmsg_open_array(&b, "dns-server");
 713                 interface_ip_dump_dns_server_list(&iface->config_ip, false);
 714                 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
 715                 blobmsg_close_array(&b, a);
 716                 a = blobmsg_open_array(&b, "dns-search");
 717                 interface_ip_dump_dns_search_list(&iface->config_ip, false);
 718                 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
 719                 blobmsg_close_array(&b, a);
 720                 blobmsg_close_table(&b, inactive);
 721         }
 722
 723         a = blobmsg_open_table(&b, "data");
 724         avl_for_each_element(&iface->data, data, node)
 725                 blob_put(&b, blob_id(data->data), blob_data(data->data), blob_len(data->data));
 726
 727         blobmsg_close_table(&b, a);
 728
 729         if (!list_is_empty(&iface->errors))
 730                 netifd_add_interface_errors(&b, iface);
 731 }
 732
 733 static int
 734 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
 735                      struct ubus_request_data *req, const char *method,
 736                      struct blob_attr *msg)
 737 {
 738         struct interface *iface = container_of(obj, struct interface, ubus);
 739
 740         blob_buf_init(&b, 0);
 741         netifd_dump_status(iface);
 742         ubus_send_reply(ctx, req, b.head);
 743
 744         return 0;
 745 }
 746
 747
 748 static int
 749 netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
 750                      struct ubus_request_data *req, const char *method,
 751                      struct blob_attr *msg)
 752 {
 753         blob_buf_init(&b, 0);
 754         void *a = blobmsg_open_array(&b, "interface");
 755
 756         struct interface *iface;
 757         vlist_for_each_element(&interfaces, iface, node) {
 758                 void *i = blobmsg_open_table(&b, NULL);
 759                 blobmsg_add_string(&b, "interface", iface->name);
 760                 netifd_dump_status(iface);
 761                 blobmsg_close_table(&b, i);
 762         }
 763
 764         blobmsg_close_array(&b, a);
 765         ubus_send_reply(ctx, req, b.head);
 766
 767         return 0;
 768 }
 769
 770 static int
 771 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
 772                            struct ubus_request_data *req, const char *method,
 773                            struct blob_attr *msg)
 774 {
 775         struct blob_attr *tb[__DEV_MAX];
 776         struct interface *iface;
 777         bool add = !strncmp(method, "add", 3);
 778
 779         iface = container_of(obj, struct interface, ubus);
 780
 781         blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
 782
 783         if (!tb[DEV_NAME])
 784                 return UBUS_STATUS_INVALID_ARGUMENT;
 785
 786         return interface_handle_link(iface, blobmsg_data(tb[DEV_NAME]), add);
 787 }
 788
 789
 790 static int
 791 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
 792                           struct ubus_request_data *req, const char *method,
 793                           struct blob_attr *msg)
 794 {
 795         struct interface *iface;
 796
 797         iface = container_of(obj, struct interface, ubus);
 798
 799         if (!iface->proto || !iface->proto->notify)
 800                 return UBUS_STATUS_NOT_SUPPORTED;
 801
 802         return iface->proto->notify(iface->proto, msg);
 803 }
 804
 805 static void
 806 netifd_iface_do_remove(struct uloop_timeout *timeout)
 807 {
 808         struct interface *iface;
 809
 810         iface = container_of(timeout, struct interface, remove_timer);
 811         vlist_delete(&interfaces, &iface->node);
 812 }
 813
 814 static int
 815 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
 816                     struct ubus_request_data *req, const char *method,
 817                     struct blob_attr *msg)
 818 {
 819         struct interface *iface;
 820
 821         iface = container_of(obj, struct interface, ubus);
 822         if (iface->remove_timer.cb)
 823                 return UBUS_STATUS_INVALID_ARGUMENT;
 824
 825         iface->remove_timer.cb = netifd_iface_do_remove;
 826         uloop_timeout_set(&iface->remove_timer, 100);
 827         return 0;
 828 }
 829
 830 static int
 831 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
 832                             struct ubus_request_data *req, const char *method,
 833                             struct blob_attr *msg)
 834 {
 835         struct interface *iface;
 836         struct device *dev;
 837         const struct device_hotplug_ops *ops;
 838
 839         iface = container_of(obj, struct interface, ubus);
 840         dev = iface->main_dev.dev;
 841         if (!dev)
 842                 return 0;
 843
 844         ops = dev->hotplug_ops;
 845         if (!ops)
 846                 return 0;
 847
 848         return ops->prepare(dev);
 849 }
 850
 851 static int
 852 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
 853                        struct ubus_request_data *req, const char *method,
 854                        struct blob_attr *msg)
 855 {
 856         struct interface *iface;
 857         struct blob_attr *cur;
 858         int rem, ret;
 859
 860         iface = container_of(obj, struct interface, ubus);
 861
 862         blob_for_each_attr(cur, msg, rem) {
 863                 ret = interface_add_data(iface, cur);
 864                 if (ret)
 865                         return ret;
 866         }
 867
 868         return 0;
 869 }
 870
 871 static struct ubus_method iface_object_methods[] = {
 872         { .name = "up", .handler = netifd_handle_up },
 873         { .name = "down", .handler = netifd_handle_down },
 874         { .name = "status", .handler = netifd_handle_status },
 875         { .name = "prepare", .handler = netifd_handle_iface_prepare },
 876         { .name = "dump", .handler = netifd_handle_dump },
 877         UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
 878         UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
 879         { .name = "notify_proto", .handler = netifd_iface_notify_proto },
 880         { .name = "remove", .handler = netifd_iface_remove },
 881         { .name = "set_data", .handler = netifd_handle_set_data },
 882 };
 883
 884 static struct ubus_object_type iface_object_type =
 885         UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
 886
 887
 888 static struct ubus_object iface_object = {
 889         .name = "network.interface",
 890         .type = &iface_object_type,
 891         .n_methods = ARRAY_SIZE(iface_object_methods),
 892 };
 893
 894 static void netifd_add_object(struct ubus_object *obj)
 895 {
 896         int ret = ubus_add_object(ubus_ctx, obj);
 897
 898         if (ret != 0)
 899                 fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
 900 }
 901
 902 static const struct blobmsg_policy iface_policy = {
 903         .name = "interface",
 904         .type = BLOBMSG_TYPE_STRING,
 905 };
 906
 907 static int
 908 netifd_handle_iface(struct ubus_context *ctx, struct ubus_object *obj,
 909                     struct ubus_request_data *req, const char *method,
 910                     struct blob_attr *msg)
 911 {
 912         struct interface *iface;
 913         struct blob_attr *tb;
 914         int i;
 915
 916         blobmsg_parse(&iface_policy, 1, &tb, blob_data(msg), blob_len(msg));
 917         if (!tb)
 918                 return UBUS_STATUS_INVALID_ARGUMENT;
 919
 920         iface = vlist_find(&interfaces, blobmsg_data(tb), iface, node);
 921         if (!iface)
 922                 return UBUS_STATUS_NOT_FOUND;
 923
 924         for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
 925                 ubus_handler_t cb;
 926
 927                 if (strcmp(method, iface_object_methods[i].name) != 0)
 928                         continue;
 929
 930                 cb = iface_object_methods[i].handler;
 931                 return cb(ctx, &iface->ubus, req, method, msg);
 932         }
 933
 934         return UBUS_STATUS_INVALID_ARGUMENT;
 935 }
 936
 937 static void netifd_add_iface_object(void)
 938 {
 939         struct ubus_method *methods;
 940         int i;
 941
 942         methods = calloc(1, sizeof(iface_object_methods));
 943         memcpy(methods, iface_object_methods, sizeof(iface_object_methods));
 944         iface_object.methods = methods;
 945
 946         for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
 947                 if (methods[i].handler == netifd_handle_dump)
 948                         continue;
 949
 950                 methods[i].handler = netifd_handle_iface;
 951                 methods[i].policy = &iface_policy;
 952                 methods[i].n_policy = 1;
 953         }
 954         netifd_add_object(&iface_object);
 955 }
 956
 957 static struct wireless_device *
 958 get_wdev(struct blob_attr *msg, int *ret)
 959 {
 960         struct blobmsg_policy wdev_policy = {
 961                 .name = "device",
 962                 .type = BLOBMSG_TYPE_STRING,
 963         };
 964         struct blob_attr *dev_attr;
 965         struct wireless_device *wdev = NULL;
 966
 967
 968         blobmsg_parse(&wdev_policy, 1, &dev_attr, blob_data(msg), blob_len(msg));
 969         if (!dev_attr) {
 970                 *ret = UBUS_STATUS_INVALID_ARGUMENT;
 971                 return NULL;
 972         }
 973
 974         wdev = vlist_find(&wireless_devices, blobmsg_data(dev_attr), wdev, node);
 975         if (!wdev) {
 976                 *ret = UBUS_STATUS_NOT_FOUND;
 977                 return NULL;
 978         }
 979
 980         *ret = 0;
 981         return wdev;
 982 }
 983
 984 static int
 985 netifd_handle_wdev_up(struct ubus_context *ctx, struct ubus_object *obj,
 986                       struct ubus_request_data *req, const char *method,
 987                       struct blob_attr *msg)
 988 {
 989         struct wireless_device *wdev;
 990         int ret;
 991
 992         wdev = get_wdev(msg, &ret);
 993         if (ret == UBUS_STATUS_NOT_FOUND)
 994                 return ret;
 995
 996         if (wdev) {
 997                 wireless_device_set_up(wdev);
 998         } else {
 999                 vlist_for_each_element(&wireless_devices, wdev, node)
1000                         wireless_device_set_up(wdev);
1001         }
1002
1003         return 0;
1004 }
1005
1006 static int
1007 netifd_handle_wdev_down(struct ubus_context *ctx, struct ubus_object *obj,
1008                         struct ubus_request_data *req, const char *method,
1009                         struct blob_attr *msg)
1010 {
1011         struct wireless_device *wdev;
1012         int ret;
1013
1014         wdev = get_wdev(msg, &ret);
1015         if (ret == UBUS_STATUS_NOT_FOUND)
1016                 return ret;
1017
1018         if (wdev) {
1019                 wireless_device_set_down(wdev);
1020         } else {
1021                 vlist_for_each_element(&wireless_devices, wdev, node)
1022                         wireless_device_set_down(wdev);
1023         }
1024
1025         return 0;
1026 }
1027
1028 static int
1029 netifd_handle_wdev_status(struct ubus_context *ctx, struct ubus_object *obj,
1030                           struct ubus_request_data *req, const char *method,
1031                           struct blob_attr *msg)
1032 {
1033         struct wireless_device *wdev;
1034         int ret;
1035
1036         wdev = get_wdev(msg, &ret);
1037         if (ret == UBUS_STATUS_NOT_FOUND)
1038                 return ret;
1039
1040         blob_buf_init(&b, 0);
1041         if (wdev) {
1042                 wireless_device_status(wdev, &b);
1043         } else {
1044                 vlist_for_each_element(&wireless_devices, wdev, node)
1045                         wireless_device_status(wdev, &b);
1046         }
1047         ubus_send_reply(ctx, req, b.head);
1048         return 0;
1049 }
1050
1051 static int
1052 netifd_handle_wdev_notify(struct ubus_context *ctx, struct ubus_object *obj,
1053                           struct ubus_request_data *req, const char *method,
1054                           struct blob_attr *msg)
1055 {
1056         struct wireless_device *wdev;
1057         int ret;
1058
1059         wdev = get_wdev(msg, &ret);
1060         if (!wdev)
1061                 return ret;
1062
1063         return wireless_device_notify(wdev, msg, req);
1064 }
1065
1066 static struct ubus_method wireless_object_methods[] = {
1067         { .name = "up", .handler = netifd_handle_wdev_up },
1068         { .name = "down", .handler = netifd_handle_wdev_down },
1069         { .name = "status", .handler = netifd_handle_wdev_status },
1070         { .name = "notify", .handler = netifd_handle_wdev_notify },
1071 };
1072
1073 static struct ubus_object_type wireless_object_type =
1074         UBUS_OBJECT_TYPE("netifd_iface", wireless_object_methods);
1075
1076
1077 static struct ubus_object wireless_object = {
1078         .name = "network.wireless",
1079         .type = &wireless_object_type,
1080         .methods = wireless_object_methods,
1081         .n_methods = ARRAY_SIZE(wireless_object_methods),
1082 };
1083
1084 int
1085 netifd_ubus_init(const char *path)
1086 {
1087         uloop_init();
1088         ubus_path = path;
1089
1090         ubus_ctx = ubus_connect(path);
1091         if (!ubus_ctx)
1092                 return -EIO;
1093
1094         DPRINTF("connected as %08x\n", ubus_ctx->local_id);
1095         ubus_ctx->connection_lost = netifd_ubus_connection_lost;
1096         netifd_ubus_add_fd();
1097
1098         netifd_add_object(&main_object);
1099         netifd_add_object(&dev_object);
1100         netifd_add_object(&wireless_object);
1101         netifd_add_iface_object();
1102
1103         return 0;
1104 }
1105
1106 void
1107 netifd_ubus_done(void)
1108 {
1109         ubus_free(ubus_ctx);
1110 }
1111
1112 void
1113 netifd_ubus_interface_event(struct interface *iface, bool up)
1114 {
1115         blob_buf_init(&b, 0);
1116         blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
1117         blobmsg_add_string(&b, "interface", iface->name);
1118         ubus_send_event(ubus_ctx, "network.interface", b.head);
1119 }
1120
1121 void
1122 netifd_ubus_interface_notify(struct interface *iface, bool up)
1123 {
1124         const char *event = (up) ? "update" : "down";
1125         blob_buf_init(&b, 0);
1126         blobmsg_add_string(&b, "interface", iface->name);
1127         netifd_dump_status(iface);
1128         ubus_notify(ubus_ctx, &iface_object, event, b.head, -1);
1129         ubus_notify(ubus_ctx, &iface->ubus, event, b.head, -1);
1130 }
1131
1132 void
1133 netifd_ubus_add_interface(struct interface *iface)
1134 {
1135         struct ubus_object *obj = &iface->ubus;
1136         char *name = NULL;
1137
1138         if (asprintf(&name, "%s.interface.%s", main_object.name, iface->name) == -1)
1139                 return;
1140
1141         obj->name = name;
1142         obj->type = &iface_object_type;
1143         obj->methods = iface_object_methods;
1144         obj->n_methods = ARRAY_SIZE(iface_object_methods);
1145         if (ubus_add_object(ubus_ctx, &iface->ubus)) {
1146                 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
1147                 free(name);
1148                 obj->name = NULL;
1149         }
1150 }
1151
1152 void
1153 netifd_ubus_remove_interface(struct interface *iface)
1154 {
1155         if (!iface->ubus.name)
1156                 return;
1157
1158         ubus_remove_object(ubus_ctx, &iface->ubus);
1159         free((void *) iface->ubus.name);
1160 }