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