iwinfo.c

   1 /*
   2  * rpcd - UBUS RPC server
   3  *
   4  *   Copyright (C) 2013-2014 Jo-Philipp Wich <jow@openwrt.org>
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <sys/types.h>
  20 #include <dirent.h>
  21 #include <libubus.h>
  22 #include <iwinfo.h>
  23 #include <iwinfo/utils.h>
  24 #include <net/ethernet.h>
  25
  26 #ifdef linux
  27 #include <netinet/ether.h>
  28 #endif
  29
  30 #include <rpcd/plugin.h>
  31
  32
  33 static struct blob_buf buf;
  34 static const struct iwinfo_ops *iw;
  35 static const char *ifname;
  36
  37 enum {
  38         RPC_D_DEVICE,
  39         __RPC_D_MAX,
  40 };
  41
  42 static const struct blobmsg_policy rpc_device_policy[__RPC_D_MAX] = {
  43         [RPC_D_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
  44 };
  45
  46 enum {
  47         RPC_A_DEVICE,
  48         RPC_A_MACADDR,
  49         __RPC_A_MAX,
  50 };
  51
  52 static const struct blobmsg_policy rpc_assoclist_policy[__RPC_A_MAX] = {
  53         [RPC_A_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
  54         [RPC_A_MACADDR] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
  55 };
  56
  57 enum {
  58         RPC_U_SECTION,
  59         __RPC_U_MAX
  60 };
  61
  62 static const struct blobmsg_policy rpc_uci_policy[__RPC_U_MAX] = {
  63         [RPC_U_SECTION] = { .name = "section", .type = BLOBMSG_TYPE_STRING },
  64 };
  65
  66 static int
  67 __rpc_iwinfo_open(struct blob_attr *device)
  68 {
  69         if (!device)
  70                 return UBUS_STATUS_INVALID_ARGUMENT;
  71
  72         ifname = blobmsg_data(device);
  73         iw = iwinfo_backend(ifname);
  74
  75         return iw ? UBUS_STATUS_OK : UBUS_STATUS_NOT_FOUND;
  76 }
  77
  78 static int
  79 rpc_iwinfo_open(struct blob_attr *msg)
  80 {
  81         static struct blob_attr *tb[__RPC_D_MAX];
  82
  83         blobmsg_parse(rpc_device_policy, __RPC_D_MAX, tb,
  84                       blob_data(msg), blob_len(msg));
  85
  86         return __rpc_iwinfo_open(tb[RPC_D_DEVICE]);
  87 }
  88
  89 static void
  90 rpc_iwinfo_close(void)
  91 {
  92         iw = NULL;
  93         ifname = NULL;
  94         iwinfo_finish();
  95 }
  96
  97 static void
  98 rpc_iwinfo_call_int(const char *name, int (*func)(const char *, int *),
  99                     const char **map)
 100 {
 101         int rv;
 102
 103         if (!func(ifname, &rv))
 104         {
 105                 if (!map)
 106                         blobmsg_add_u32(&buf, name, rv);
 107                 else
 108                         blobmsg_add_string(&buf, name, map[rv]);
 109         }
 110 }
 111
 112 static void
 113 rpc_iwinfo_call_hardware_id(const char *name)
 114 {
 115         struct iwinfo_hardware_id ids;
 116         void *c;
 117
 118         if (!iw->hardware_id(ifname, (char *)&ids))
 119         {
 120                 c = blobmsg_open_array(&buf, name);
 121
 122                 blobmsg_add_u32(&buf, NULL, ids.vendor_id);
 123                 blobmsg_add_u32(&buf, NULL, ids.device_id);
 124                 blobmsg_add_u32(&buf, NULL, ids.subsystem_vendor_id);
 125                 blobmsg_add_u32(&buf, NULL, ids.subsystem_device_id);
 126
 127                 blobmsg_close_array(&buf, c);
 128         }
 129 }
 130
 131 static void
 132 rpc_iwinfo_add_encryption(const char *name, struct iwinfo_crypto_entry *e)
 133 {
 134         int ciph, wpa_version;
 135         void *c, *d;
 136
 137         c = blobmsg_open_table(&buf, name);
 138
 139         blobmsg_add_u8(&buf, "enabled", e->enabled);
 140
 141         if (e->enabled)
 142         {
 143                 if (!e->wpa_version)
 144                 {
 145                         d = blobmsg_open_array(&buf, "wep");
 146
 147                         if (e->auth_algs & IWINFO_AUTH_OPEN)
 148                                 blobmsg_add_string(&buf, NULL, "open");
 149
 150                         if (e->auth_algs & IWINFO_AUTH_SHARED)
 151                                 blobmsg_add_string(&buf, NULL, "shared");
 152
 153                         blobmsg_close_array(&buf, d);
 154                 }
 155                 else
 156                 {
 157                         d = blobmsg_open_array(&buf, "wpa");
 158
 159                         for (wpa_version = 1; wpa_version <= 3; wpa_version++)
 160                                 if (e->wpa_version & (1 << (wpa_version - 1)))
 161                                         blobmsg_add_u32(&buf, NULL, wpa_version);
 162
 163                         blobmsg_close_array(&buf, d);
 164
 165
 166                         d = blobmsg_open_array(&buf, "authentication");
 167
 168                         if (e->auth_suites & IWINFO_KMGMT_PSK)
 169                                 blobmsg_add_string(&buf, NULL, "psk");
 170
 171                         if (e->auth_suites & IWINFO_KMGMT_8021x)
 172                                 blobmsg_add_string(&buf, NULL, "802.1x");
 173
 174                         if (e->auth_suites & IWINFO_KMGMT_SAE)
 175                                 blobmsg_add_string(&buf, NULL, "sae");
 176
 177                         if (e->auth_suites & IWINFO_KMGMT_OWE)
 178                                 blobmsg_add_string(&buf, NULL, "owe");
 179
 180                         if (!e->auth_suites ||
 181                                 (e->auth_suites & IWINFO_KMGMT_NONE))
 182                                 blobmsg_add_string(&buf, NULL, "none");
 183
 184                         blobmsg_close_array(&buf, d);
 185                 }
 186
 187                 d = blobmsg_open_array(&buf, "ciphers");
 188                 ciph = e->pair_ciphers | e->group_ciphers;
 189
 190                 if (ciph & IWINFO_CIPHER_WEP40)
 191                         blobmsg_add_string(&buf, NULL, "wep-40");
 192
 193                 if (ciph & IWINFO_CIPHER_WEP104)
 194                         blobmsg_add_string(&buf, NULL, "wep-104");
 195
 196                 if (ciph & IWINFO_CIPHER_TKIP)
 197                         blobmsg_add_string(&buf, NULL, "tkip");
 198
 199                 if (ciph & IWINFO_CIPHER_CCMP)
 200                         blobmsg_add_string(&buf, NULL, "ccmp");
 201
 202                 if (ciph & IWINFO_CIPHER_WRAP)
 203                         blobmsg_add_string(&buf, NULL, "wrap");
 204
 205                 if (ciph & IWINFO_CIPHER_AESOCB)
 206                         blobmsg_add_string(&buf, NULL, "aes-ocb");
 207
 208                 if (ciph & IWINFO_CIPHER_CKIP)
 209                         blobmsg_add_string(&buf, NULL, "ckip");
 210
 211                 if (!ciph || (ciph & IWINFO_CIPHER_NONE))
 212                         blobmsg_add_string(&buf, NULL, "none");
 213
 214                 blobmsg_close_array(&buf, d);
 215         }
 216
 217         blobmsg_close_table(&buf, c);
 218 }
 219
 220 static void
 221 rpc_iwinfo_call_encryption(const char *name)
 222 {
 223         struct iwinfo_crypto_entry crypto = { 0 };
 224
 225         if (!iw->encryption(ifname, (char *)&crypto))
 226                 rpc_iwinfo_add_encryption(name, &crypto);
 227 }
 228
 229 static void
 230 rpc_iwinfo_call_htmodes(const char *name)
 231 {
 232         int modes;
 233         void *c;
 234
 235         if (!iw->htmodelist(ifname, &modes))
 236         {
 237                 c = blobmsg_open_array(&buf, name);
 238
 239                 if (modes & IWINFO_HTMODE_HT20)
 240                         blobmsg_add_string(&buf, NULL, "HT20");
 241
 242                 if (modes & IWINFO_HTMODE_HT40)
 243                         blobmsg_add_string(&buf, NULL, "HT40");
 244
 245                 if (modes & IWINFO_HTMODE_VHT20)
 246                         blobmsg_add_string(&buf, NULL, "VHT20");
 247
 248                 if (modes & IWINFO_HTMODE_VHT40)
 249                         blobmsg_add_string(&buf, NULL, "VHT40");
 250
 251                 if (modes & IWINFO_HTMODE_VHT80)
 252                         blobmsg_add_string(&buf, NULL, "VHT80");
 253
 254                 if (modes & IWINFO_HTMODE_VHT80_80)
 255                         blobmsg_add_string(&buf, NULL, "VHT80+80");
 256
 257                 if (modes & IWINFO_HTMODE_VHT160)
 258                         blobmsg_add_string(&buf, NULL, "VHT160");
 259
 260                 blobmsg_close_array(&buf, c);
 261         }
 262 }
 263
 264 static void
 265 rpc_iwinfo_call_hwmodes(const char *name)
 266 {
 267         int modes;
 268         void *c;
 269
 270         if (!iw->hwmodelist(ifname, &modes))
 271         {
 272                 c = blobmsg_open_array(&buf, name);
 273
 274                 if (modes & IWINFO_80211_AC)
 275                         blobmsg_add_string(&buf, NULL, "ac");
 276
 277                 if (modes & IWINFO_80211_A)
 278                         blobmsg_add_string(&buf, NULL, "a");
 279
 280                 if (modes & IWINFO_80211_B)
 281                         blobmsg_add_string(&buf, NULL, "b");
 282
 283                 if (modes & IWINFO_80211_G)
 284                         blobmsg_add_string(&buf, NULL, "g");
 285
 286                 if (modes & IWINFO_80211_N)
 287                         blobmsg_add_string(&buf, NULL, "n");
 288
 289                 blobmsg_close_array(&buf, c);
 290         }
 291 }
 292
 293 static void
 294 rpc_iwinfo_call_str(const char *name, int (*func)(const char *, char *))
 295 {
 296         char rv[IWINFO_BUFSIZE] = { 0 };
 297
 298         if (!func(ifname, rv))
 299                 blobmsg_add_string(&buf, name, rv);
 300 }
 301
 302 static int
 303 rpc_iwinfo_info(struct ubus_context *ctx, struct ubus_object *obj,
 304                 struct ubus_request_data *req, const char *method,
 305                 struct blob_attr *msg)
 306 {
 307         int rv;
 308         void *c;
 309
 310         rv = rpc_iwinfo_open(msg);
 311
 312         if (rv)
 313                 return rv;
 314
 315         blob_buf_init(&buf, 0);
 316
 317         rpc_iwinfo_call_str("phy", iw->phyname);
 318
 319         rpc_iwinfo_call_str("ssid", iw->ssid);
 320         rpc_iwinfo_call_str("bssid", iw->bssid);
 321         rpc_iwinfo_call_str("country", iw->country);
 322
 323         rpc_iwinfo_call_int("mode", iw->mode, IWINFO_OPMODE_NAMES);
 324         rpc_iwinfo_call_int("channel", iw->channel, NULL);
 325
 326         rpc_iwinfo_call_int("frequency", iw->frequency, NULL);
 327         rpc_iwinfo_call_int("frequency_offset", iw->frequency_offset, NULL);
 328
 329         rpc_iwinfo_call_int("txpower", iw->txpower, NULL);
 330         rpc_iwinfo_call_int("txpower_offset", iw->txpower_offset, NULL);
 331
 332         rpc_iwinfo_call_int("quality", iw->quality, NULL);
 333         rpc_iwinfo_call_int("quality_max", iw->quality_max, NULL);
 334
 335         rpc_iwinfo_call_int("signal", iw->signal, NULL);
 336         rpc_iwinfo_call_int("noise", iw->noise, NULL);
 337
 338         rpc_iwinfo_call_int("bitrate", iw->bitrate, NULL);
 339
 340         rpc_iwinfo_call_encryption("encryption");
 341         rpc_iwinfo_call_htmodes("htmodes");
 342         rpc_iwinfo_call_hwmodes("hwmodes");
 343
 344         c = blobmsg_open_table(&buf, "hardware");
 345         rpc_iwinfo_call_hardware_id("id");
 346         rpc_iwinfo_call_str("name", iw->hardware_name);
 347         blobmsg_close_table(&buf, c);
 348
 349         ubus_send_reply(ctx, req, buf.head);
 350
 351         rpc_iwinfo_close();
 352
 353         return UBUS_STATUS_OK;
 354 }
 355
 356 static int
 357 rpc_iwinfo_scan(struct ubus_context *ctx, struct ubus_object *obj,
 358                 struct ubus_request_data *req, const char *method,
 359                 struct blob_attr *msg)
 360 {
 361         int i, rv, len;
 362         void *c, *d;
 363         char mac[18];
 364         char res[IWINFO_BUFSIZE];
 365         struct iwinfo_scanlist_entry *e;
 366
 367         rv = rpc_iwinfo_open(msg);
 368
 369         if (rv)
 370                 return rv;
 371
 372         blob_buf_init(&buf, 0);
 373
 374         c = blobmsg_open_array(&buf, "results");
 375
 376         if (!iw->scanlist(ifname, res, &len) && (len > 0))
 377         {
 378                 for (i = 0; i < len; i += sizeof(struct iwinfo_scanlist_entry))
 379                 {
 380                         e = (struct iwinfo_scanlist_entry *)&res[i];
 381                         d = blobmsg_open_table(&buf, NULL);
 382
 383                         if (e->ssid[0])
 384                                 blobmsg_add_string(&buf, "ssid", (const char *)e->ssid);
 385
 386                         snprintf(mac, sizeof(mac), "%02X:%02X:%02X:%02X:%02X:%02X",
 387                                          e->mac[0], e->mac[1], e->mac[2],
 388                                          e->mac[3], e->mac[4], e->mac[5]);
 389
 390                         blobmsg_add_string(&buf, "bssid", mac);
 391
 392                         blobmsg_add_string(&buf, "mode", IWINFO_OPMODE_NAMES[e->mode]);
 393
 394                         blobmsg_add_u32(&buf, "channel", e->channel);
 395                         blobmsg_add_u32(&buf, "signal", (uint32_t)(e->signal - 0x100));
 396
 397                         blobmsg_add_u32(&buf, "quality", e->quality);
 398                         blobmsg_add_u32(&buf, "quality_max", e->quality_max);
 399
 400                         rpc_iwinfo_add_encryption("encryption", &e->crypto);
 401
 402                         blobmsg_close_table(&buf, d);
 403                 }
 404         }
 405
 406         blobmsg_close_array(&buf, c);
 407
 408         ubus_send_reply(ctx, req, buf.head);
 409
 410         rpc_iwinfo_close();
 411
 412         return UBUS_STATUS_OK;
 413 }
 414
 415 static void
 416 rpc_iwinfo_add_rateinfo(struct iwinfo_rate_entry *r)
 417 {
 418         blobmsg_add_u8(&buf, "ht", r->is_ht);
 419         blobmsg_add_u8(&buf, "vht", r->is_vht);
 420         blobmsg_add_u32(&buf, "mhz", r->mhz);
 421         blobmsg_add_u32(&buf, "rate", r->rate);
 422
 423         if (r->is_ht) {
 424                 blobmsg_add_u32(&buf, "mcs", r->mcs);
 425                 blobmsg_add_u8(&buf, "40mhz", r->is_40mhz);
 426                 blobmsg_add_u8(&buf, "short_gi", r->is_short_gi);
 427         }
 428         else if (r->is_vht) {
 429                 blobmsg_add_u32(&buf, "mcs", r->mcs);
 430                 blobmsg_add_u32(&buf, "nss", r->nss);
 431                 blobmsg_add_u8(&buf, "short_gi", r->is_short_gi);
 432         }
 433 }
 434
 435 static int
 436 rpc_iwinfo_assoclist(struct ubus_context *ctx, struct ubus_object *obj,
 437                      struct ubus_request_data *req, const char *method,
 438                      struct blob_attr *msg)
 439 {
 440         int i, rv, len;
 441         char mac[18];
 442         char res[IWINFO_BUFSIZE];
 443         struct iwinfo_assoclist_entry *a;
 444         struct ether_addr *macaddr = NULL;
 445         void *c, *d, *e;
 446         struct blob_attr *tb[__RPC_A_MAX];
 447         bool found = false;
 448
 449         blobmsg_parse(rpc_assoclist_policy, __RPC_A_MAX, tb,
 450                       blob_data(msg), blob_len(msg));
 451
 452         rv = __rpc_iwinfo_open(tb[RPC_A_DEVICE]);
 453         if (rv)
 454                 return rv;
 455
 456         if (tb[RPC_A_MACADDR])
 457                 macaddr = ether_aton(blobmsg_data(tb[RPC_A_MACADDR]));
 458
 459         blob_buf_init(&buf, 0);
 460
 461         if (!macaddr)
 462                 c = blobmsg_open_array(&buf, "results");
 463
 464         if (!iw->assoclist(ifname, res, &len) && (len > 0))
 465         {
 466                 for (i = 0; i < len; i += sizeof(struct iwinfo_assoclist_entry))
 467                 {
 468                         a = (struct iwinfo_assoclist_entry *)&res[i];
 469
 470                         if (!macaddr)
 471                                 d = blobmsg_open_table(&buf, NULL);
 472                         else if (memcmp(macaddr, a->mac, ETH_ALEN) != 0)
 473                                 continue;
 474
 475                         snprintf(mac, sizeof(mac), "%02X:%02X:%02X:%02X:%02X:%02X",
 476                                          a->mac[0], a->mac[1], a->mac[2],
 477                                          a->mac[3], a->mac[4], a->mac[5]);
 478
 479                         blobmsg_add_string(&buf, "mac", mac);
 480                         blobmsg_add_u32(&buf, "signal", a->signal);
 481                         blobmsg_add_u32(&buf, "signal_avg", a->signal_avg);
 482                         blobmsg_add_u32(&buf, "noise", a->noise);
 483                         blobmsg_add_u32(&buf, "inactive", a->inactive);
 484                         blobmsg_add_u32(&buf, "connected_time", a->connected_time);
 485                         blobmsg_add_u32(&buf, "thr", a->thr);
 486                         blobmsg_add_u8(&buf, "authorized", a->is_authorized);
 487                         blobmsg_add_u8(&buf, "authenticated", a->is_authenticated);
 488                         blobmsg_add_string(&buf, "preamble", a->is_preamble_short ? "short" : "long");
 489                         blobmsg_add_u8(&buf, "wme", a->is_wme);
 490                         blobmsg_add_u8(&buf, "mfp", a->is_mfp);
 491                         blobmsg_add_u8(&buf, "tdls", a->is_tdls);
 492
 493                         blobmsg_add_u16(&buf, "mesh llid", a->llid);
 494                         blobmsg_add_u16(&buf, "mesh plid", a->plid);
 495                         blobmsg_add_string(&buf, "mesh plink", a->plink_state);
 496                         blobmsg_add_string(&buf, "mesh local PS", a->local_ps);
 497                         blobmsg_add_string(&buf, "mesh peer PS", a->peer_ps);
 498                         blobmsg_add_string(&buf, "mesh non-peer PS", a->nonpeer_ps);
 499
 500                         e = blobmsg_open_table(&buf, "rx");
 501                         blobmsg_add_u64(&buf, "drop_misc", a->rx_drop_misc);
 502                         blobmsg_add_u32(&buf, "packets", a->rx_packets);
 503                         blobmsg_add_u32(&buf, "bytes", a->rx_bytes);
 504                         rpc_iwinfo_add_rateinfo(&a->rx_rate);
 505                         blobmsg_close_table(&buf, e);
 506
 507                         e = blobmsg_open_table(&buf, "tx");
 508                         blobmsg_add_u32(&buf, "failed", a->tx_failed);
 509                         blobmsg_add_u32(&buf, "retries", a->tx_retries);
 510                         blobmsg_add_u32(&buf, "packets", a->tx_packets);
 511                         blobmsg_add_u32(&buf, "bytes", a->tx_bytes);
 512                         rpc_iwinfo_add_rateinfo(&a->tx_rate);
 513                         blobmsg_close_table(&buf, e);
 514
 515                         found = true;
 516                         if (!macaddr)
 517                                 blobmsg_close_table(&buf, d);
 518                         else
 519                                 break;
 520                 }
 521         }
 522
 523         if (!macaddr)
 524                 blobmsg_close_array(&buf, c);
 525         else if (!found)
 526                 return UBUS_STATUS_NOT_FOUND;
 527
 528         ubus_send_reply(ctx, req, buf.head);
 529
 530         rpc_iwinfo_close();
 531
 532         return UBUS_STATUS_OK;
 533 }
 534
 535 static int
 536 rpc_iwinfo_survey(struct ubus_context *ctx, struct ubus_object *obj,
 537                     struct ubus_request_data *req, const char *method,
 538                     struct blob_attr *msg)
 539 {
 540         char res[IWINFO_BUFSIZE];
 541         struct iwinfo_survey_entry *e;
 542         void *c, *d;
 543         int i, rv, len;
 544
 545         blob_buf_init(&buf, 0);
 546
 547         rv = rpc_iwinfo_open(msg);
 548
 549         c = blobmsg_open_array(&buf, "results");
 550
 551         if (rv || iw->survey(ifname, res, &len) || len < 0)
 552                 return UBUS_STATUS_OK;
 553
 554         for (i = 0; i < len; i += sizeof(struct iwinfo_survey_entry)) {
 555                 e = (struct iwinfo_survey_entry *)&res[i];
 556
 557                 d = blobmsg_open_table(&buf, NULL);
 558                 blobmsg_add_u32(&buf, "mhz", e->mhz);
 559                 blobmsg_add_u32(&buf, "noise", e->noise);
 560                 blobmsg_add_u64(&buf, "active_time", e->active_time);
 561                 blobmsg_add_u64(&buf, "busy_time", e->busy_time);
 562                 blobmsg_add_u64(&buf, "busy_time_ext", e->busy_time_ext);
 563                 blobmsg_add_u64(&buf, "rx_time", e->rxtime);
 564                 blobmsg_add_u64(&buf, "tx_time", e->txtime);
 565                 blobmsg_close_table(&buf, d);
 566         }
 567
 568         blobmsg_close_array(&buf, c);
 569         ubus_send_reply(ctx, req, buf.head);
 570         rpc_iwinfo_close();
 571         return UBUS_STATUS_OK;
 572 }
 573
 574 static int
 575 rpc_iwinfo_freqlist(struct ubus_context *ctx, struct ubus_object *obj,
 576                     struct ubus_request_data *req, const char *method,
 577                     struct blob_attr *msg)
 578 {
 579         int i, rv, len, ch;
 580         char res[IWINFO_BUFSIZE];
 581         struct iwinfo_freqlist_entry *f;
 582         void *c, *d;
 583
 584         rv = rpc_iwinfo_open(msg);
 585
 586         if (rv)
 587                 return rv;
 588
 589         blob_buf_init(&buf, 0);
 590
 591         c = blobmsg_open_array(&buf, "results");
 592
 593         if (!iw->freqlist(ifname, res, &len) && (len > 0))
 594         {
 595                 if (iw->channel(ifname, &ch))
 596                         ch = -1;
 597
 598                 for (i = 0; i < len; i += sizeof(struct iwinfo_freqlist_entry))
 599                 {
 600                         f = (struct iwinfo_freqlist_entry *)&res[i];
 601                         d = blobmsg_open_table(&buf, NULL);
 602
 603                         blobmsg_add_u32(&buf, "channel", f->channel);
 604                         blobmsg_add_u32(&buf, "mhz", f->mhz);
 605                         blobmsg_add_u8(&buf, "restricted", f->restricted);
 606
 607                         if (ch > -1)
 608                                 blobmsg_add_u8(&buf, "active", f->channel == ch);
 609
 610                         blobmsg_close_table(&buf, d);
 611                 }
 612         }
 613
 614         blobmsg_close_array(&buf, c);
 615
 616         ubus_send_reply(ctx, req, buf.head);
 617
 618         rpc_iwinfo_close();
 619
 620         return UBUS_STATUS_OK;
 621 }
 622
 623 static int
 624 rpc_iwinfo_txpowerlist(struct ubus_context *ctx, struct ubus_object *obj,
 625                        struct ubus_request_data *req, const char *method,
 626                        struct blob_attr *msg)
 627 {
 628         int i, rv, len, pwr, off;
 629         char res[IWINFO_BUFSIZE];
 630         struct iwinfo_txpwrlist_entry *t;
 631         void *c, *d;
 632
 633         rv = rpc_iwinfo_open(msg);
 634
 635         if (rv)
 636                 return rv;
 637
 638         blob_buf_init(&buf, 0);
 639
 640         c = blobmsg_open_array(&buf, "results");
 641
 642         if (!iw->txpwrlist(ifname, res, &len) && (len > 0))
 643         {
 644                 if (iw->txpower(ifname, &pwr))
 645                         pwr = -1;
 646
 647                 if (iw->txpower_offset(ifname, &off))
 648                         off = 0;
 649
 650                 for (i = 0; i < len; i += sizeof(struct iwinfo_txpwrlist_entry))
 651                 {
 652                         t = (struct iwinfo_txpwrlist_entry *)&res[i];
 653                         d = blobmsg_open_table(&buf, NULL);
 654
 655                         blobmsg_add_u32(&buf, "dbm", t->dbm + off);
 656                         blobmsg_add_u32(&buf, "mw", iwinfo_dbm2mw(t->dbm + off));
 657
 658                         if (pwr > -1)
 659                                 blobmsg_add_u8(&buf, "active", t->dbm == pwr);
 660
 661                         blobmsg_close_table(&buf, d);
 662                 }
 663         }
 664
 665         blobmsg_close_array(&buf, c);
 666
 667         ubus_send_reply(ctx, req, buf.head);
 668
 669         rpc_iwinfo_close();
 670
 671         return UBUS_STATUS_OK;
 672 }
 673
 674 static const char *
 675 rpc_iwinfo_lookup_country(char *buf, int len, int iso3166)
 676 {
 677         int i;
 678         static char ccode[5];
 679         struct iwinfo_country_entry *c;
 680
 681         for (i = 0; i < len; i += sizeof(struct iwinfo_country_entry))
 682         {
 683                 c = (struct iwinfo_country_entry *)&buf[i];
 684
 685                 if (c->iso3166 == iso3166)
 686                 {
 687                         snprintf(ccode, sizeof(ccode), "%s", c->ccode);
 688                         return ccode;
 689                 }
 690         }
 691
 692         return NULL;
 693 }
 694
 695 static int
 696 rpc_iwinfo_countrylist(struct ubus_context *ctx, struct ubus_object *obj,
 697                        struct ubus_request_data *req, const char *method,
 698                        struct blob_attr *msg)
 699 {
 700         int rv, len;
 701         char cur[3];
 702         char iso3166[3];
 703         char res[IWINFO_BUFSIZE] = {0};
 704         const char *ccode;
 705         const struct iwinfo_iso3166_label *l;
 706         void *c, *d;
 707
 708         rv = rpc_iwinfo_open(msg);
 709
 710         if (rv)
 711                 return rv;
 712
 713         blob_buf_init(&buf, 0);
 714
 715         c = blobmsg_open_array(&buf, "results");
 716
 717         if (!iw->countrylist(ifname, res, &len) && (len > 0))
 718         {
 719                 if (iw->country(ifname, cur))
 720                         memset(cur, 0, sizeof(cur));
 721
 722                 for (l = IWINFO_ISO3166_NAMES; l->iso3166; l++)
 723                 {
 724                         ccode = rpc_iwinfo_lookup_country(res, len, l->iso3166);
 725
 726                         if (!ccode)
 727                                 continue;
 728
 729                         d = blobmsg_open_table(&buf, NULL);
 730
 731                         blobmsg_add_string(&buf, "code", ccode);
 732                         blobmsg_add_string(&buf, "country", (const char *)l->name);
 733
 734                         snprintf(iso3166, sizeof(iso3166), "%c%c",
 735                                  (l->iso3166 / 256), (l->iso3166 % 256));
 736
 737                         blobmsg_add_string(&buf, "iso3166", iso3166);
 738
 739                         if (cur[0])
 740                                 blobmsg_add_u8(&buf, "active", !strncmp(ccode, cur, 2));
 741
 742                         blobmsg_close_table(&buf, d);
 743                 }
 744         }
 745
 746         blobmsg_close_array(&buf, c);
 747
 748         ubus_send_reply(ctx, req, buf.head);
 749
 750         rpc_iwinfo_close();
 751
 752         return UBUS_STATUS_OK;
 753 }
 754
 755 static int
 756 rpc_iwinfo_phyname(struct ubus_context *ctx, struct ubus_object *obj,
 757                    struct ubus_request_data *req, const char *method,
 758                    struct blob_attr *msg)
 759 {
 760         int i;
 761         bool found = false;
 762         char res[IWINFO_BUFSIZE];
 763         const struct iwinfo_ops *ops;
 764         struct blob_attr *tb[__RPC_U_MAX];
 765         const char *backends[] = {
 766                 "nl80211",
 767                 "madwifi",
 768                 "wl"
 769         };
 770
 771         blobmsg_parse(rpc_uci_policy, __RPC_U_MAX, tb,
 772                       blob_data(msg), blob_len(msg));
 773
 774         if (!tb[RPC_U_SECTION])
 775                 return UBUS_STATUS_INVALID_ARGUMENT;
 776
 777         for (i = 0; i < ARRAY_SIZE(backends); i++)
 778         {
 779                 ops = iwinfo_backend_by_name(backends[i]);
 780
 781                 if (!ops || !ops->lookup_phy)
 782                         continue;
 783
 784                 if (!ops->lookup_phy(blobmsg_get_string(tb[RPC_U_SECTION]), res))
 785                 {
 786                         found = true;
 787                         break;
 788                 }
 789         }
 790
 791         if (found)
 792         {
 793                 blob_buf_init(&buf, 0);
 794                 blobmsg_add_string(&buf, "phyname", res);
 795
 796                 ubus_send_reply(ctx, req, buf.head);
 797         }
 798
 799         rpc_iwinfo_close();
 800
 801         return found ? UBUS_STATUS_OK : UBUS_STATUS_NOT_FOUND;
 802 }
 803
 804 static int
 805 rpc_iwinfo_devices(struct ubus_context *ctx, struct ubus_object *obj,
 806                    struct ubus_request_data *req, const char *method,
 807                    struct blob_attr *msg)
 808 {
 809         void *c;
 810         struct dirent *e;
 811         DIR *d;
 812
 813         d = opendir("/sys/class/net");
 814
 815         if (!d)
 816                 return UBUS_STATUS_UNKNOWN_ERROR;
 817
 818         blob_buf_init(&buf, 0);
 819
 820         c = blobmsg_open_array(&buf, "devices");
 821
 822         while ((e = readdir(d)) != NULL)
 823         {
 824                 if (e->d_type != DT_LNK)
 825                         continue;
 826
 827                 if (iwinfo_type(e->d_name))
 828                         blobmsg_add_string(&buf, NULL, e->d_name);
 829         }
 830
 831         blobmsg_close_array(&buf, c);
 832
 833         closedir(d);
 834
 835         ubus_send_reply(ctx, req, buf.head);
 836
 837         rpc_iwinfo_close();
 838
 839         return UBUS_STATUS_OK;
 840 }
 841
 842
 843 static int
 844 rpc_iwinfo_api_init(const struct rpc_daemon_ops *o, struct ubus_context *ctx)
 845 {
 846         static const struct ubus_method iwinfo_methods[] = {
 847                 UBUS_METHOD_NOARG("devices", rpc_iwinfo_devices),
 848                 UBUS_METHOD("info",        rpc_iwinfo_info,        rpc_device_policy),
 849                 UBUS_METHOD("scan",        rpc_iwinfo_scan,        rpc_device_policy),
 850                 UBUS_METHOD("assoclist",   rpc_iwinfo_assoclist,   rpc_assoclist_policy),
 851                 UBUS_METHOD("freqlist",    rpc_iwinfo_freqlist,    rpc_device_policy),
 852                 UBUS_METHOD("txpowerlist", rpc_iwinfo_txpowerlist, rpc_device_policy),
 853                 UBUS_METHOD("countrylist", rpc_iwinfo_countrylist, rpc_device_policy),
 854                 UBUS_METHOD("survey",      rpc_iwinfo_survey,      rpc_device_policy),
 855                 UBUS_METHOD("phyname",     rpc_iwinfo_phyname,     rpc_uci_policy),
 856         };
 857
 858         static struct ubus_object_type iwinfo_type =
 859                 UBUS_OBJECT_TYPE("luci-rpc-iwinfo", iwinfo_methods);
 860
 861         static struct ubus_object obj = {
 862                 .name = "iwinfo",
 863                 .type = &iwinfo_type,
 864                 .methods = iwinfo_methods,
 865                 .n_methods = ARRAY_SIZE(iwinfo_methods),
 866         };
 867
 868         return ubus_add_object(ctx, &obj);
 869 }
 870
 871 struct rpc_plugin rpc_plugin = {
 872         .init = rpc_iwinfo_api_init
 873 };