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         if (netifd_reload())
  48                 return UBUS_STATUS_NOT_FOUND;
  49
  50         return UBUS_STATUS_OK;
  51 }
  52
  53 enum {
  54         HR_TARGET,
  55         HR_V6,
  56         HR_INTERFACE,
  57         __HR_MAX
  58 };
  59
  60 static const struct blobmsg_policy route_policy[__HR_MAX] = {
  61         [HR_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
  62         [HR_V6] = { .name = "v6", .type = BLOBMSG_TYPE_BOOL },
  63         [HR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
  64 };
  65
  66 static int
  67 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
  68                       struct ubus_request_data *req, const char *method,
  69                       struct blob_attr *msg)
  70 {
  71         struct blob_attr *tb[__HR_MAX];
  72         struct interface *iface = NULL;
  73         union if_addr a;
  74         bool v6 = false;
  75
  76         blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
  77         if (!tb[HR_TARGET])
  78                 return UBUS_STATUS_INVALID_ARGUMENT;
  79
  80         if (tb[HR_V6])
  81                 v6 = blobmsg_get_bool(tb[HR_V6]);
  82
  83         if (tb[HR_INTERFACE])
  84                 iface = vlist_find(&interfaces, blobmsg_data(tb[HR_INTERFACE]), iface, node);
  85
  86         memset(&a, 0, sizeof(a));
  87         if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
  88                 return UBUS_STATUS_INVALID_ARGUMENT;
  89
  90
  91         iface = interface_ip_add_target_route(&a, v6, iface);
  92         if (!iface)
  93                 return UBUS_STATUS_NOT_FOUND;
  94
  95         blob_buf_init(&b, 0);
  96         blobmsg_add_string(&b, "interface", iface->name);
  97         ubus_send_reply(ctx, req, b.head);
  98
  99         return 0;
 100 }
 101
 102 static int
 103 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
 104                           struct ubus_request_data *req, const char *method,
 105                           struct blob_attr *msg)
 106 {
 107         blob_buf_init(&b, 0);
 108         proto_dump_handlers(&b);
 109         ubus_send_reply(ctx, req, b.head);
 110
 111         return 0;
 112 }
 113
 114
 115 enum {
 116         DI_NAME,
 117         __DI_MAX
 118 };
 119
 120 static const struct blobmsg_policy dynamic_policy[__DI_MAX] = {
 121         [DI_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 122 };
 123
 124 static int
 125 netifd_add_dynamic(struct ubus_context *ctx, struct ubus_object *obj,
 126                       struct ubus_request_data *req, const char *method,
 127                       struct blob_attr *msg)
 128 {
 129         struct blob_attr *tb[__DI_MAX];
 130         struct interface *iface;
 131         struct blob_attr *config;
 132
 133         blobmsg_parse(dynamic_policy, __DI_MAX, tb, blob_data(msg), blob_len(msg));
 134
 135         if (!tb[DI_NAME])
 136                 return UBUS_STATUS_INVALID_ARGUMENT;
 137
 138         const char *name = blobmsg_get_string(tb[DI_NAME]);
 139
 140         iface = interface_alloc(name, msg);
 141         if (!iface)
 142                 return UBUS_STATUS_UNKNOWN_ERROR;
 143
 144         config = blob_memdup(msg);
 145         if (!config)
 146                 goto error;
 147
 148         interface_add(iface, config);
 149
 150         // need to look up the interface name again, in case of config update
 151         // the pointer will have changed
 152         iface = vlist_find(&interfaces, name, iface, node);
 153         if (!iface)
 154                 return UBUS_STATUS_UNKNOWN_ERROR;
 155
 156         // Set interface as dynamic
 157         interface_set_dynamic(iface);
 158
 159         return UBUS_STATUS_OK;
 160
 161 error:
 162         free(iface);
 163         return UBUS_STATUS_UNKNOWN_ERROR;
 164 }
 165
 166 static struct ubus_method main_object_methods[] = {
 167         { .name = "restart", .handler = netifd_handle_restart },
 168         { .name = "reload", .handler = netifd_handle_reload },
 169         UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
 170         { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
 171         UBUS_METHOD("add_dynamic", netifd_add_dynamic, dynamic_policy),
 172 };
 173
 174 static struct ubus_object_type main_object_type =
 175         UBUS_OBJECT_TYPE("netifd", main_object_methods);
 176
 177 static struct ubus_object main_object = {
 178         .name = "network",
 179         .type = &main_object_type,
 180         .methods = main_object_methods,
 181         .n_methods = ARRAY_SIZE(main_object_methods),
 182 };
 183
 184 enum {
 185         DEV_NAME,
 186         __DEV_MAX,
 187 };
 188
 189 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
 190         [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 191 };
 192
 193 static int
 194 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
 195                   struct ubus_request_data *req, const char *method,
 196                   struct blob_attr *msg)
 197 {
 198         struct device *dev = NULL;
 199         struct blob_attr *tb[__DEV_MAX];
 200
 201         blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
 202
 203         if (tb[DEV_NAME]) {
 204                 dev = device_find(blobmsg_data(tb[DEV_NAME]));
 205                 if (!dev)
 206                         return UBUS_STATUS_INVALID_ARGUMENT;
 207         }
 208
 209         blob_buf_init(&b, 0);
 210         device_dump_status(&b, dev);
 211         ubus_send_reply(ctx, req, b.head);
 212
 213         return 0;
 214 }
 215
 216 enum {
 217         ALIAS_ATTR_ALIAS,
 218         ALIAS_ATTR_DEV,
 219         __ALIAS_ATTR_MAX,
 220 };
 221
 222 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
 223         [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
 224         [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
 225 };
 226
 227 static int
 228 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
 229                     struct ubus_request_data *req, const char *method,
 230                     struct blob_attr *msg)
 231 {
 232         struct device *dev = NULL;
 233         struct blob_attr *tb[__ALIAS_ATTR_MAX];
 234         struct blob_attr *cur;
 235         int rem;
 236
 237         blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 238
 239         if (!tb[ALIAS_ATTR_ALIAS])
 240                 return UBUS_STATUS_INVALID_ARGUMENT;
 241
 242         if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
 243                 dev = device_get(blobmsg_data(cur), true);
 244                 if (!dev)
 245                         return UBUS_STATUS_NOT_FOUND;
 246         }
 247
 248         blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
 249                 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
 250                         goto error;
 251
 252                 if (!blobmsg_check_attr(cur, NULL))
 253                         goto error;
 254
 255                 alias_notify_device(blobmsg_data(cur), dev);
 256         }
 257         return 0;
 258
 259 error:
 260         device_free_unused(dev);
 261         return UBUS_STATUS_INVALID_ARGUMENT;
 262 }
 263
 264 enum {
 265         DEV_STATE_NAME,
 266         DEV_STATE_DEFER,
 267         __DEV_STATE_MAX,
 268 };
 269
 270 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
 271         [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 272         [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
 273 };
 274
 275 static int
 276 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
 277                         struct ubus_request_data *req, const char *method,
 278                         struct blob_attr *msg)
 279 {
 280         struct device *dev = NULL;
 281         struct blob_attr *tb[__DEV_STATE_MAX];
 282         struct blob_attr *cur;
 283
 284         blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
 285
 286         cur = tb[DEV_STATE_NAME];
 287         if (!cur)
 288                 return UBUS_STATUS_INVALID_ARGUMENT;
 289
 290         dev = device_find(blobmsg_data(cur));
 291         if (!dev)
 292                 return UBUS_STATUS_NOT_FOUND;
 293
 294         cur = tb[DEV_STATE_DEFER];
 295         if (cur)
 296                 device_set_deferred(dev, !!blobmsg_get_u8(cur));
 297
 298         return 0;
 299 }
 300
 301 static struct ubus_method dev_object_methods[] = {
 302         UBUS_METHOD("status", netifd_dev_status, dev_policy),
 303         UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
 304         UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
 305 };
 306
 307 static struct ubus_object_type dev_object_type =
 308         UBUS_OBJECT_TYPE("device", dev_object_methods);
 309
 310 static struct ubus_object dev_object = {
 311         .name = "network.device",
 312         .type = &dev_object_type,
 313         .methods = dev_object_methods,
 314         .n_methods = ARRAY_SIZE(dev_object_methods),
 315 };
 316
 317 static void
 318 netifd_ubus_add_fd(void)
 319 {
 320         ubus_add_uloop(ubus_ctx);
 321         system_fd_set_cloexec(ubus_ctx->sock.fd);
 322 }
 323
 324 static void
 325 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
 326 {
 327         static struct uloop_timeout retry = {
 328                 .cb = netifd_ubus_reconnect_timer,
 329         };
 330         int t = 2;
 331
 332         if (ubus_reconnect(ubus_ctx, ubus_path) != 0) {
 333                 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
 334                 uloop_timeout_set(&retry, t * 1000);
 335                 return;
 336         }
 337
 338         DPRINTF("reconnected to ubus, new id: %08x\n", ubus_ctx->local_id);
 339         netifd_ubus_add_fd();
 340 }
 341
 342 static void
 343 netifd_ubus_connection_lost(struct ubus_context *ctx)
 344 {
 345         netifd_ubus_reconnect_timer(NULL);
 346 }
 347
 348 /* per-interface object */
 349
 350 static int
 351 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
 352                  struct ubus_request_data *req, const char *method,
 353                  struct blob_attr *msg)
 354 {
 355         struct interface *iface;
 356
 357         iface = container_of(obj, struct interface, ubus);
 358         interface_set_up(iface);
 359
 360         return 0;
 361 }
 362
 363 static int
 364 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
 365                    struct ubus_request_data *req, const char *method,
 366                    struct blob_attr *msg)
 367 {
 368         struct interface *iface;
 369
 370         iface = container_of(obj, struct interface, ubus);
 371         interface_set_down(iface);
 372
 373         return 0;
 374 }
 375
 376 static int
 377 netifd_handle_renew(struct ubus_context *ctx, struct ubus_object *obj,
 378                    struct ubus_request_data *req, const char *method,
 379                    struct blob_attr *msg)
 380 {
 381         struct interface *iface;
 382
 383         iface = container_of(obj, struct interface, ubus);
 384         interface_renew(iface);
 385
 386         return 0;
 387 }
 388
 389 static void
 390 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
 391 {
 392         struct interface_error *error;
 393         void *e, *e2, *e3;
 394         int i;
 395
 396         e = blobmsg_open_array(b, "errors");
 397         list_for_each_entry(error, &iface->errors, list) {
 398                 e2 = blobmsg_open_table(b, NULL);
 399
 400                 blobmsg_add_string(b, "subsystem", error->subsystem);
 401                 blobmsg_add_string(b, "code", error->code);
 402                 if (error->data[0]) {
 403                         e3 = blobmsg_open_array(b, "data");
 404                         for (i = 0; error->data[i]; i++)
 405                                 blobmsg_add_string(b, NULL, error->data[i]);
 406                         blobmsg_close_array(b, e3);
 407                 }
 408
 409                 blobmsg_close_table(b, e2);
 410         }
 411         blobmsg_close_array(b, e);
 412 }
 413
 414 static void
 415 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6, bool enabled)
 416 {
 417         struct device_addr *addr;
 418         char *buf;
 419         void *a;
 420         int buflen = 128;
 421         int af;
 422
 423         time_t now = system_get_rtime();
 424         vlist_for_each_element(&ip->addr, addr, node) {
 425                 if (addr->enabled != enabled)
 426                         continue;
 427
 428                 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
 429                         af = AF_INET;
 430                 else
 431                         af = AF_INET6;
 432
 433                 if (af != (v6 ? AF_INET6 : AF_INET))
 434                         continue;
 435
 436                 a = blobmsg_open_table(&b, NULL);
 437
 438                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 439                 inet_ntop(af, &addr->addr, buf, buflen);
 440                 blobmsg_add_string_buffer(&b);
 441
 442                 blobmsg_add_u32(&b, "mask", addr->mask);
 443
 444                 if (addr->preferred_until) {
 445                         int preferred = addr->preferred_until - now;
 446                         if (preferred < 0)
 447                                 preferred = 0;
 448                         blobmsg_add_u32(&b, "preferred", preferred);
 449                 }
 450
 451                 if (addr->valid_until)
 452                         blobmsg_add_u32(&b, "valid", addr->valid_until - now);
 453
 454                 if (addr->pclass)
 455                         blobmsg_add_string(&b, "class", addr->pclass);
 456
 457                 blobmsg_close_table(&b, a);
 458         }
 459 }
 460
 461 static void
 462 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
 463 {
 464         struct device_route *route;
 465         int buflen = 128;
 466         char *buf;
 467         void *r;
 468         int af;
 469
 470         time_t now = system_get_rtime();
 471         vlist_for_each_element(&ip->route, route, node) {
 472                 if (route->enabled != enabled)
 473                         continue;
 474
 475                 if ((ip->no_defaultroute == enabled) && !route->mask)
 476                         continue;
 477
 478                 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
 479                         af = AF_INET;
 480                 else
 481                         af = AF_INET6;
 482
 483                 r = blobmsg_open_table(&b, NULL);
 484
 485                 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
 486                 inet_ntop(af, &route->addr, buf, buflen);
 487                 blobmsg_add_string_buffer(&b);
 488
 489                 blobmsg_add_u32(&b, "mask", route->mask);
 490
 491                 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
 492                 inet_ntop(af, &route->nexthop, buf, buflen);
 493                 blobmsg_add_string_buffer(&b);
 494
 495                 if (route->flags & DEVROUTE_TYPE)
 496                         blobmsg_add_u32(&b, "type", route->type);
 497
 498                 if (route->flags & DEVROUTE_PROTO)
 499                         blobmsg_add_u32(&b, "proto", route->proto);
 500
 501                 if (route->flags & DEVROUTE_MTU)
 502                         blobmsg_add_u32(&b, "mtu", route->mtu);
 503
 504                 if (route->flags & DEVROUTE_METRIC)
 505                         blobmsg_add_u32(&b, "metric", route->metric);
 506
 507                 if (route->flags & DEVROUTE_TABLE)
 508                         blobmsg_add_u32(&b, "table", route->table);
 509
 510                 if (route->valid_until)
 511                         blobmsg_add_u32(&b, "valid", route->valid_until - now);
 512
 513                 buf = blobmsg_alloc_string_buffer(&b, "source", buflen);
 514                 inet_ntop(af, &route->source, buf, buflen);
 515                 snprintf(buf + strlen(buf), buflen - strlen(buf), "/%u", route->sourcemask);
 516                 blobmsg_add_string_buffer(&b);
 517
 518                 blobmsg_close_table(&b, r);
 519         }
 520 }
 521
 522
 523 static void
 524 interface_ip_dump_prefix_list(struct interface_ip_settings *ip)
 525 {
 526         struct device_prefix *prefix;
 527         char *buf;
 528         void *a, *c;
 529         const int buflen = INET6_ADDRSTRLEN;
 530
 531         time_t now = system_get_rtime();
 532         vlist_for_each_element(&ip->prefix, prefix, node) {
 533                 a = blobmsg_open_table(&b, NULL);
 534
 535                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 536                 inet_ntop(AF_INET6, &prefix->addr, buf, buflen);
 537                 blobmsg_add_string_buffer(&b);
 538
 539                 blobmsg_add_u32(&b, "mask", prefix->length);
 540
 541                 if (prefix->preferred_until) {
 542                         int preferred = prefix->preferred_until - now;
 543                         if (preferred < 0)
 544                                 preferred = 0;
 545                         blobmsg_add_u32(&b, "preferred", preferred);
 546                 }
 547
 548                 if (prefix->valid_until)
 549                         blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
 550
 551                 blobmsg_add_string(&b, "class", prefix->pclass);
 552
 553                 c = blobmsg_open_table(&b, "assigned");
 554                 struct device_prefix_assignment *assign;
 555                 list_for_each_entry(assign, &prefix->assignments, head) {
 556                         if (!assign->name[0])
 557                                 continue;
 558
 559                         struct in6_addr addr = prefix->addr;
 560                         addr.s6_addr32[1] |= htonl(assign->assigned);
 561
 562                         void *d = blobmsg_open_table(&b, assign->name);
 563
 564                         buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 565                         inet_ntop(AF_INET6, &addr, buf, buflen);
 566                         blobmsg_add_string_buffer(&b);
 567
 568                         blobmsg_add_u32(&b, "mask", assign->length);
 569
 570                         blobmsg_close_table(&b, d);
 571                 }
 572                 blobmsg_close_table(&b, c);
 573
 574                 blobmsg_close_table(&b, a);
 575         }
 576 }
 577
 578
 579 static void
 580 interface_ip_dump_prefix_assignment_list(struct interface *iface)
 581 {
 582         void *a;
 583         char *buf;
 584         const int buflen = INET6_ADDRSTRLEN;
 585         time_t now = system_get_rtime();
 586
 587         struct device_prefix *prefix;
 588         list_for_each_entry(prefix, &prefixes, head) {
 589                 struct device_prefix_assignment *assign;
 590                 list_for_each_entry(assign, &prefix->assignments, head) {
 591                         if (strcmp(assign->name, iface->name))
 592                                 continue;
 593
 594                         struct in6_addr addr = prefix->addr;
 595                         addr.s6_addr32[1] |= htonl(assign->assigned);
 596
 597                         a = blobmsg_open_table(&b, NULL);
 598
 599                         buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 600                         inet_ntop(AF_INET6, &addr, buf, buflen);
 601                         blobmsg_add_string_buffer(&b);
 602
 603                         blobmsg_add_u32(&b, "mask", assign->length);
 604
 605                         if (prefix->preferred_until) {
 606                                 int preferred = prefix->preferred_until - now;
 607                                 if (preferred < 0)
 608                                         preferred = 0;
 609                                 blobmsg_add_u32(&b, "preferred", preferred);
 610                         }
 611
 612                         if (prefix->valid_until)
 613                                 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
 614
 615                         void *c = blobmsg_open_table(&b, "local-address");
 616                         if (assign->enabled) {
 617                                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
 618                                 inet_ntop(AF_INET6, &assign->addr, buf, buflen);
 619                                 blobmsg_add_string_buffer(&b);
 620
 621                                 blobmsg_add_u32(&b, "mask", assign->length < 64 ? 64 : assign->length);
 622                         }
 623                         blobmsg_close_table(&b, c);
 624
 625                         blobmsg_close_table(&b, a);
 626                 }
 627         }
 628 }
 629
 630 static void
 631 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip, bool enabled)
 632 {
 633         struct dns_server *dns;
 634         int buflen = 128;
 635         char *buf;
 636
 637         vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
 638                 if (ip->no_dns == enabled)
 639                         continue;
 640
 641                 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
 642                 inet_ntop(dns->af, &dns->addr, buf, buflen);
 643                 blobmsg_add_string_buffer(&b);
 644         }
 645 }
 646
 647 static void
 648 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip, bool enabled)
 649 {
 650         struct dns_search_domain *dns;
 651
 652         vlist_simple_for_each_element(&ip->dns_search, dns, node) {
 653                 if (ip->no_dns == enabled)
 654                         continue;
 655
 656                 blobmsg_add_string(&b, NULL, dns->name);
 657         }
 658 }
 659
 660 static void
 661 netifd_dump_status(struct interface *iface)
 662 {
 663         struct interface_data *data;
 664         struct device *dev;
 665         void *a, *inactive;
 666
 667         blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
 668         blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
 669         blobmsg_add_u8(&b, "available", iface->available);
 670         blobmsg_add_u8(&b, "autostart", iface->autostart);
 671         blobmsg_add_u8(&b, "dynamic", iface->dynamic);
 672
 673         if (iface->state == IFS_UP) {
 674                 time_t cur = system_get_rtime();
 675                 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
 676                 if (iface->l3_dev.dev)
 677                         blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
 678         }
 679
 680         if (iface->proto_handler)
 681                 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
 682
 683         dev = iface->main_dev.dev;
 684         if (dev && !dev->hidden && iface->proto_handler &&
 685             !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
 686                 blobmsg_add_string(&b, "device", dev->ifname);
 687
 688         if (iface->state == IFS_UP) {
 689                 if (iface->updated) {
 690                         a = blobmsg_open_array(&b, "updated");
 691
 692                         if (iface->updated & IUF_ADDRESS)
 693                                 blobmsg_add_string(&b, NULL, "addresses");
 694                         if (iface->updated & IUF_ROUTE)
 695                                 blobmsg_add_string(&b, NULL, "routes");
 696                         if (iface->updated & IUF_PREFIX)
 697                                 blobmsg_add_string(&b, NULL, "prefixes");
 698                         if (iface->updated & IUF_DATA)
 699                                 blobmsg_add_string(&b, NULL, "data");
 700
 701                         blobmsg_close_array(&b, a);
 702                 }
 703
 704                 if (iface->ip4table)
 705                         blobmsg_add_u32(&b, "ip4table", iface->ip4table);
 706                 if (iface->ip6table)
 707                         blobmsg_add_u32(&b, "ip6table", iface->ip6table);
 708                 blobmsg_add_u32(&b, "metric", iface->metric);
 709                 blobmsg_add_u32(&b, "dns_metric", iface->dns_metric);
 710                 blobmsg_add_u8(&b, "delegation", !iface->proto_ip.no_delegation);
 711                 if (iface->assignment_weight)
 712                         blobmsg_add_u32(&b, "ip6weight", iface->assignment_weight);
 713                 a = blobmsg_open_array(&b, "ipv4-address");
 714                 interface_ip_dump_address_list(&iface->config_ip, false, true);
 715                 interface_ip_dump_address_list(&iface->proto_ip, false, true);
 716                 blobmsg_close_array(&b, a);
 717                 a = blobmsg_open_array(&b, "ipv6-address");
 718                 interface_ip_dump_address_list(&iface->config_ip, true, true);
 719                 interface_ip_dump_address_list(&iface->proto_ip, true, true);
 720                 blobmsg_close_array(&b, a);
 721                 a = blobmsg_open_array(&b, "ipv6-prefix");
 722                 interface_ip_dump_prefix_list(&iface->config_ip);
 723                 interface_ip_dump_prefix_list(&iface->proto_ip);
 724                 blobmsg_close_array(&b, a);
 725                 a = blobmsg_open_array(&b, "ipv6-prefix-assignment");
 726                 interface_ip_dump_prefix_assignment_list(iface);
 727                 blobmsg_close_array(&b, a);
 728                 a = blobmsg_open_array(&b, "route");
 729                 interface_ip_dump_route_list(&iface->config_ip, true);
 730                 interface_ip_dump_route_list(&iface->proto_ip, true);
 731                 blobmsg_close_array(&b, a);
 732                 a = blobmsg_open_array(&b, "dns-server");
 733                 interface_ip_dump_dns_server_list(&iface->config_ip, true);
 734                 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
 735                 blobmsg_close_array(&b, a);
 736                 a = blobmsg_open_array(&b, "dns-search");
 737                 interface_ip_dump_dns_search_list(&iface->config_ip, true);
 738                 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
 739                 blobmsg_close_array(&b, a);
 740
 741                 inactive = blobmsg_open_table(&b, "inactive");
 742                 a = blobmsg_open_array(&b, "ipv4-address");
 743                 interface_ip_dump_address_list(&iface->config_ip, false, false);
 744                 interface_ip_dump_address_list(&iface->proto_ip, false, false);
 745                 blobmsg_close_array(&b, a);
 746                 a = blobmsg_open_array(&b, "ipv6-address");
 747                 interface_ip_dump_address_list(&iface->config_ip, true, false);
 748                 interface_ip_dump_address_list(&iface->proto_ip, true, false);
 749                 blobmsg_close_array(&b, a);
 750                 a = blobmsg_open_array(&b, "route");
 751                 interface_ip_dump_route_list(&iface->config_ip, false);
 752                 interface_ip_dump_route_list(&iface->proto_ip, false);
 753                 blobmsg_close_array(&b, a);
 754                 a = blobmsg_open_array(&b, "dns-server");
 755                 interface_ip_dump_dns_server_list(&iface->config_ip, false);
 756                 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
 757                 blobmsg_close_array(&b, a);
 758                 a = blobmsg_open_array(&b, "dns-search");
 759                 interface_ip_dump_dns_search_list(&iface->config_ip, false);
 760                 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
 761                 blobmsg_close_array(&b, a);
 762                 blobmsg_close_table(&b, inactive);
 763         }
 764
 765         a = blobmsg_open_table(&b, "data");
 766         avl_for_each_element(&iface->data, data, node)
 767                 blobmsg_add_blob(&b, data->data);
 768
 769         blobmsg_close_table(&b, a);
 770
 771         if (!list_empty(&iface->errors))
 772                 netifd_add_interface_errors(&b, iface);
 773 }
 774
 775 static int
 776 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
 777                      struct ubus_request_data *req, const char *method,
 778                      struct blob_attr *msg)
 779 {
 780         struct interface *iface = container_of(obj, struct interface, ubus);
 781
 782         blob_buf_init(&b, 0);
 783         netifd_dump_status(iface);
 784         ubus_send_reply(ctx, req, b.head);
 785
 786         return 0;
 787 }
 788
 789
 790 static int
 791 netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
 792                      struct ubus_request_data *req, const char *method,
 793                      struct blob_attr *msg)
 794 {
 795         blob_buf_init(&b, 0);
 796         void *a = blobmsg_open_array(&b, "interface");
 797
 798         struct interface *iface;
 799         vlist_for_each_element(&interfaces, iface, node) {
 800                 void *i = blobmsg_open_table(&b, NULL);
 801                 blobmsg_add_string(&b, "interface", iface->name);
 802                 netifd_dump_status(iface);
 803                 blobmsg_close_table(&b, i);
 804         }
 805
 806         blobmsg_close_array(&b, a);
 807         ubus_send_reply(ctx, req, b.head);
 808
 809         return 0;
 810 }
 811
 812 enum {
 813         DEV_LINK_NAME,
 814         DEV_LINK_EXT,
 815         __DEV_LINK_MAX,
 816 };
 817
 818 static const struct blobmsg_policy dev_link_policy[__DEV_LINK_MAX] = {
 819         [DEV_LINK_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 820         [DEV_LINK_EXT] = { .name = "link-ext", .type = BLOBMSG_TYPE_BOOL },
 821 };
 822
 823 static int
 824 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
 825                            struct ubus_request_data *req, const char *method,
 826                            struct blob_attr *msg)
 827 {
 828         struct blob_attr *tb[__DEV_LINK_MAX];
 829         struct blob_attr *cur;
 830         struct interface *iface;
 831         bool add = !strncmp(method, "add", 3);
 832         bool link_ext = true;
 833
 834         iface = container_of(obj, struct interface, ubus);
 835
 836         blobmsg_parse(dev_link_policy, __DEV_LINK_MAX, tb, blob_data(msg), blob_len(msg));
 837
 838         if (!tb[DEV_LINK_NAME])
 839                 return UBUS_STATUS_INVALID_ARGUMENT;
 840
 841         cur = tb[DEV_LINK_EXT];
 842         if (cur)
 843                 link_ext = blobmsg_get_bool(cur);
 844
 845         return interface_handle_link(iface, blobmsg_data(tb[DEV_LINK_NAME]), add, link_ext);
 846 }
 847
 848
 849 static int
 850 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
 851                           struct ubus_request_data *req, const char *method,
 852                           struct blob_attr *msg)
 853 {
 854         struct interface *iface;
 855
 856         iface = container_of(obj, struct interface, ubus);
 857
 858         if (!iface->proto || !iface->proto->notify)
 859                 return UBUS_STATUS_NOT_SUPPORTED;
 860
 861         return iface->proto->notify(iface->proto, msg);
 862 }
 863
 864 static void
 865 netifd_iface_do_remove(struct uloop_timeout *timeout)
 866 {
 867         struct interface *iface;
 868
 869         iface = container_of(timeout, struct interface, remove_timer);
 870         vlist_delete(&interfaces, &iface->node);
 871 }
 872
 873 static int
 874 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
 875                     struct ubus_request_data *req, const char *method,
 876                     struct blob_attr *msg)
 877 {
 878         struct interface *iface;
 879
 880         iface = container_of(obj, struct interface, ubus);
 881         if (iface->remove_timer.cb)
 882                 return UBUS_STATUS_INVALID_ARGUMENT;
 883
 884         iface->remove_timer.cb = netifd_iface_do_remove;
 885         uloop_timeout_set(&iface->remove_timer, 100);
 886         return 0;
 887 }
 888
 889 static int
 890 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
 891                             struct ubus_request_data *req, const char *method,
 892                             struct blob_attr *msg)
 893 {
 894         struct interface *iface;
 895         struct device *dev;
 896         const struct device_hotplug_ops *ops;
 897
 898         iface = container_of(obj, struct interface, ubus);
 899         dev = iface->main_dev.dev;
 900         if (!dev)
 901                 return 0;
 902
 903         ops = dev->hotplug_ops;
 904         if (!ops)
 905                 return 0;
 906
 907         return ops->prepare(dev);
 908 }
 909
 910 static int
 911 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
 912                        struct ubus_request_data *req, const char *method,
 913                        struct blob_attr *msg)
 914 {
 915         struct interface *iface;
 916
 917         iface = container_of(obj, struct interface, ubus);
 918
 919         return interface_parse_data(iface, msg);
 920 }
 921
 922 static struct ubus_method iface_object_methods[] = {
 923         { .name = "up", .handler = netifd_handle_up },
 924         { .name = "down", .handler = netifd_handle_down },
 925         { .name = "renew", .handler = netifd_handle_renew },
 926         { .name = "status", .handler = netifd_handle_status },
 927         { .name = "prepare", .handler = netifd_handle_iface_prepare },
 928         { .name = "dump", .handler = netifd_handle_dump },
 929         UBUS_METHOD("add_device", netifd_iface_handle_device, dev_link_policy ),
 930         UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_link_policy ),
 931         { .name = "notify_proto", .handler = netifd_iface_notify_proto },
 932         { .name = "remove", .handler = netifd_iface_remove },
 933         { .name = "set_data", .handler = netifd_handle_set_data },
 934 };
 935
 936 static struct ubus_object_type iface_object_type =
 937         UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
 938
 939
 940 static struct ubus_object iface_object = {
 941         .name = "network.interface",
 942         .type = &iface_object_type,
 943         .n_methods = ARRAY_SIZE(iface_object_methods),
 944 };
 945
 946 static void netifd_add_object(struct ubus_object *obj)
 947 {
 948         int ret = ubus_add_object(ubus_ctx, obj);
 949
 950         if (ret != 0)
 951                 fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
 952 }
 953
 954 static const struct blobmsg_policy iface_policy = {
 955         .name = "interface",
 956         .type = BLOBMSG_TYPE_STRING,
 957 };
 958
 959 static int
 960 netifd_handle_iface(struct ubus_context *ctx, struct ubus_object *obj,
 961                     struct ubus_request_data *req, const char *method,
 962                     struct blob_attr *msg)
 963 {
 964         struct interface *iface;
 965         struct blob_attr *tb;
 966         int i;
 967
 968         blobmsg_parse(&iface_policy, 1, &tb, blob_data(msg), blob_len(msg));
 969         if (!tb)
 970                 return UBUS_STATUS_INVALID_ARGUMENT;
 971
 972         iface = vlist_find(&interfaces, blobmsg_data(tb), iface, node);
 973         if (!iface)
 974                 return UBUS_STATUS_NOT_FOUND;
 975
 976         for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
 977                 ubus_handler_t cb;
 978
 979                 if (strcmp(method, iface_object_methods[i].name) != 0)
 980                         continue;
 981
 982                 cb = iface_object_methods[i].handler;
 983                 return cb(ctx, &iface->ubus, req, method, msg);
 984         }
 985
 986         return UBUS_STATUS_INVALID_ARGUMENT;
 987 }
 988
 989 static void netifd_add_iface_object(void)
 990 {
 991         struct ubus_method *methods;
 992         int i;
 993
 994         methods = calloc(1, sizeof(iface_object_methods));
 995         if (!methods)
 996                 return;
 997
 998         memcpy(methods, iface_object_methods, sizeof(iface_object_methods));
 999         iface_object.methods = methods;
1000
1001         for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
1002                 if (methods[i].handler == netifd_handle_dump)
1003                         continue;
1004
1005                 methods[i].handler = netifd_handle_iface;
1006                 methods[i].policy = &iface_policy;
1007                 methods[i].n_policy = 1;
1008         }
1009         netifd_add_object(&iface_object);
1010 }
1011
1012 static struct wireless_device *
1013 get_wdev(struct blob_attr *msg, int *ret)
1014 {
1015         struct blobmsg_policy wdev_policy = {
1016                 .name = "device",
1017                 .type = BLOBMSG_TYPE_STRING,
1018         };
1019         struct blob_attr *dev_attr;
1020         struct wireless_device *wdev = NULL;
1021
1022
1023         blobmsg_parse(&wdev_policy, 1, &dev_attr, blob_data(msg), blob_len(msg));
1024         if (!dev_attr) {
1025                 *ret = UBUS_STATUS_INVALID_ARGUMENT;
1026                 return NULL;
1027         }
1028
1029         wdev = vlist_find(&wireless_devices, blobmsg_data(dev_attr), wdev, node);
1030         if (!wdev) {
1031                 *ret = UBUS_STATUS_NOT_FOUND;
1032                 return NULL;
1033         }
1034
1035         *ret = 0;
1036         return wdev;
1037 }
1038
1039 static int
1040 netifd_handle_wdev_up(struct ubus_context *ctx, struct ubus_object *obj,
1041                       struct ubus_request_data *req, const char *method,
1042                       struct blob_attr *msg)
1043 {
1044         struct wireless_device *wdev;
1045         int ret;
1046
1047         wdev = get_wdev(msg, &ret);
1048         if (ret == UBUS_STATUS_NOT_FOUND)
1049                 return ret;
1050
1051         if (wdev) {
1052                 wireless_device_set_up(wdev);
1053         } else {
1054                 vlist_for_each_element(&wireless_devices, wdev, node)
1055                         wireless_device_set_up(wdev);
1056         }
1057
1058         return 0;
1059 }
1060
1061 static int
1062 netifd_handle_wdev_down(struct ubus_context *ctx, struct ubus_object *obj,
1063                         struct ubus_request_data *req, const char *method,
1064                         struct blob_attr *msg)
1065 {
1066         struct wireless_device *wdev;
1067         int ret;
1068
1069         wdev = get_wdev(msg, &ret);
1070         if (ret == UBUS_STATUS_NOT_FOUND)
1071                 return ret;
1072
1073         if (wdev) {
1074                 wireless_device_set_down(wdev);
1075         } else {
1076                 vlist_for_each_element(&wireless_devices, wdev, node)
1077                         wireless_device_set_down(wdev);
1078         }
1079
1080         return 0;
1081 }
1082
1083 static int
1084 netifd_handle_wdev_status(struct ubus_context *ctx, struct ubus_object *obj,
1085                           struct ubus_request_data *req, const char *method,
1086                           struct blob_attr *msg)
1087 {
1088         struct wireless_device *wdev;
1089         int ret;
1090
1091         wdev = get_wdev(msg, &ret);
1092         if (ret == UBUS_STATUS_NOT_FOUND)
1093                 return ret;
1094
1095         blob_buf_init(&b, 0);
1096         if (wdev) {
1097                 wireless_device_status(wdev, &b);
1098         } else {
1099                 vlist_for_each_element(&wireless_devices, wdev, node)
1100                         wireless_device_status(wdev, &b);
1101         }
1102         ubus_send_reply(ctx, req, b.head);
1103         return 0;
1104 }
1105
1106 static int
1107 netifd_handle_wdev_get_validate(struct ubus_context *ctx, struct ubus_object *obj,
1108                           struct ubus_request_data *req, const char *method,
1109                           struct blob_attr *msg)
1110 {
1111         struct wireless_device *wdev;
1112         int ret;
1113
1114         wdev = get_wdev(msg, &ret);
1115         if (ret == UBUS_STATUS_NOT_FOUND)
1116                 return ret;
1117
1118         blob_buf_init(&b, 0);
1119         if (wdev) {
1120                 wireless_device_get_validate(wdev, &b);
1121         } else {
1122                 vlist_for_each_element(&wireless_devices, wdev, node)
1123                         wireless_device_get_validate(wdev, &b);
1124         }
1125         ubus_send_reply(ctx, req, b.head);
1126         return 0;
1127 }
1128
1129 static int
1130 netifd_handle_wdev_notify(struct ubus_context *ctx, struct ubus_object *obj,
1131                           struct ubus_request_data *req, const char *method,
1132                           struct blob_attr *msg)
1133 {
1134         struct wireless_device *wdev;
1135         int ret;
1136
1137         wdev = get_wdev(msg, &ret);
1138         if (!wdev)
1139                 return ret;
1140
1141         return wireless_device_notify(wdev, msg, req);
1142 }
1143
1144 static struct ubus_method wireless_object_methods[] = {
1145         { .name = "up", .handler = netifd_handle_wdev_up },
1146         { .name = "down", .handler = netifd_handle_wdev_down },
1147         { .name = "status", .handler = netifd_handle_wdev_status },
1148         { .name = "notify", .handler = netifd_handle_wdev_notify },
1149         { .name = "get_validate", .handler = netifd_handle_wdev_get_validate },
1150 };
1151
1152 static struct ubus_object_type wireless_object_type =
1153         UBUS_OBJECT_TYPE("netifd_iface", wireless_object_methods);
1154
1155
1156 static struct ubus_object wireless_object = {
1157         .name = "network.wireless",
1158         .type = &wireless_object_type,
1159         .methods = wireless_object_methods,
1160         .n_methods = ARRAY_SIZE(wireless_object_methods),
1161 };
1162
1163 int
1164 netifd_ubus_init(const char *path)
1165 {
1166         uloop_init();
1167         ubus_path = path;
1168
1169         ubus_ctx = ubus_connect(path);
1170         if (!ubus_ctx)
1171                 return -EIO;
1172
1173         DPRINTF("connected as %08x\n", ubus_ctx->local_id);
1174         ubus_ctx->connection_lost = netifd_ubus_connection_lost;
1175         netifd_ubus_add_fd();
1176
1177         netifd_add_object(&main_object);
1178         netifd_add_object(&dev_object);
1179         netifd_add_object(&wireless_object);
1180         netifd_add_iface_object();
1181
1182         return 0;
1183 }
1184
1185 void
1186 netifd_ubus_done(void)
1187 {
1188         ubus_free(ubus_ctx);
1189 }
1190
1191 void
1192 netifd_ubus_interface_event(struct interface *iface, bool up)
1193 {
1194         blob_buf_init(&b, 0);
1195         blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
1196         blobmsg_add_string(&b, "interface", iface->name);
1197         ubus_send_event(ubus_ctx, "network.interface", b.head);
1198 }
1199
1200 void
1201 netifd_ubus_interface_notify(struct interface *iface, bool up)
1202 {
1203         const char *event = (up) ? "interface.update" : "interface.down";
1204         blob_buf_init(&b, 0);
1205         blobmsg_add_string(&b, "interface", iface->name);
1206         netifd_dump_status(iface);
1207         ubus_notify(ubus_ctx, &iface_object, event, b.head, -1);
1208         ubus_notify(ubus_ctx, &iface->ubus, event, b.head, -1);
1209 }
1210
1211 void
1212 netifd_ubus_add_interface(struct interface *iface)
1213 {
1214         struct ubus_object *obj = &iface->ubus;
1215         char *name = NULL;
1216
1217         if (asprintf(&name, "%s.interface.%s", main_object.name, iface->name) == -1)
1218                 return;
1219
1220         obj->name = name;
1221         obj->type = &iface_object_type;
1222         obj->methods = iface_object_methods;
1223         obj->n_methods = ARRAY_SIZE(iface_object_methods);
1224         if (ubus_add_object(ubus_ctx, &iface->ubus)) {
1225                 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
1226                 free(name);
1227                 obj->name = NULL;
1228         }
1229 }
1230
1231 void
1232 netifd_ubus_remove_interface(struct interface *iface)
1233 {
1234         if (!iface->ubus.name)
1235                 return;
1236
1237         ubus_remove_object(ubus_ctx, &iface->ubus);
1238         free((void *) iface->ubus.name);
1239 }