luci2.c

   1 /*
   2  * luci-rpcd - LuCI UBUS RPC server
   3  *
   4  *   Copyright (C) 2013 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 <fcntl.h>
  20 #include <errno.h>
  21 #include <unistd.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <ctype.h>
  25 #include <sys/wait.h>
  26 #include <sys/stat.h>
  27 #include <sys/types.h>
  28 #include <sys/statvfs.h>
  29 #include <dirent.h>
  30 #include <arpa/inet.h>
  31 #include <signal.h>
  32
  33 #include "luci2.h"
  34 #include "exec.h"
  35
  36 static struct blob_buf buf;
  37 static struct uci_context *cursor;
  38
  39 enum {
  40         RPC_S_PID,
  41         RPC_S_SIGNAL,
  42         __RPC_S_MAX,
  43 };
  44
  45 static const struct blobmsg_policy rpc_signal_policy[__RPC_S_MAX] = {
  46         [RPC_S_PID]    = { .name = "pid",    .type = BLOBMSG_TYPE_INT32 },
  47         [RPC_S_SIGNAL] = { .name = "signal", .type = BLOBMSG_TYPE_INT32 },
  48 };
  49
  50 enum {
  51         RPC_I_NAME,
  52         RPC_I_ACTION,
  53         __RPC_I_MAX,
  54 };
  55
  56 static const struct blobmsg_policy rpc_init_policy[__RPC_I_MAX] = {
  57         [RPC_I_NAME]   = { .name = "name",   .type = BLOBMSG_TYPE_STRING },
  58         [RPC_I_ACTION] = { .name = "action", .type = BLOBMSG_TYPE_STRING },
  59 };
  60
  61 enum {
  62         RPC_D_DATA,
  63         __RPC_D_MAX
  64 };
  65
  66 static const struct blobmsg_policy rpc_data_policy[__RPC_D_MAX] = {
  67         [RPC_D_DATA]   = { .name = "data",  .type = BLOBMSG_TYPE_STRING },
  68 };
  69
  70 enum {
  71         RPC_K_KEYS,
  72         __RPC_K_MAX
  73 };
  74
  75 static const struct blobmsg_policy rpc_sshkey_policy[__RPC_K_MAX] = {
  76         [RPC_K_KEYS]   = { .name = "keys",   .type = BLOBMSG_TYPE_ARRAY },
  77 };
  78
  79 enum {
  80         RPC_P_USER,
  81         RPC_P_PASSWORD,
  82         __RPC_P_MAX
  83 };
  84
  85 static const struct blobmsg_policy rpc_password_policy[__RPC_P_MAX] = {
  86         [RPC_P_USER]     = { .name = "user",     .type = BLOBMSG_TYPE_STRING },
  87         [RPC_P_PASSWORD] = { .name = "password", .type = BLOBMSG_TYPE_STRING },
  88 };
  89
  90 enum {
  91         RPC_OM_LIMIT,
  92         RPC_OM_OFFSET,
  93         RPC_OM_PATTERN,
  94         __RPC_OM_MAX
  95 };
  96
  97 static const struct blobmsg_policy rpc_opkg_match_policy[__RPC_OM_MAX] = {
  98         [RPC_OM_LIMIT]    = { .name = "limit",    .type = BLOBMSG_TYPE_INT32  },
  99         [RPC_OM_OFFSET]   = { .name = "offset",   .type = BLOBMSG_TYPE_INT32  },
 100         [RPC_OM_PATTERN]  = { .name = "pattern",  .type = BLOBMSG_TYPE_STRING },
 101 };
 102
 103 enum {
 104         RPC_OP_PACKAGE,
 105         __RPC_OP_MAX
 106 };
 107
 108 static const struct blobmsg_policy rpc_opkg_package_policy[__RPC_OP_MAX] = {
 109         [RPC_OP_PACKAGE]  = { .name = "package",  .type = BLOBMSG_TYPE_STRING },
 110 };
 111
 112 enum {
 113         RPC_OC_CONFIG,
 114         __RPC_OC_MAX
 115 };
 116
 117 static const struct blobmsg_policy rpc_opkg_config_policy[__RPC_OC_MAX] = {
 118         [RPC_OC_CONFIG]     = { .name = "config", .type = BLOBMSG_TYPE_STRING },
 119 };
 120
 121
 122 static int
 123 rpc_errno_status(void)
 124 {
 125         switch (errno)
 126         {
 127         case EACCES:
 128                 return UBUS_STATUS_PERMISSION_DENIED;
 129
 130         case ENOTDIR:
 131                 return UBUS_STATUS_INVALID_ARGUMENT;
 132
 133         case ENOENT:
 134                 return UBUS_STATUS_NOT_FOUND;
 135
 136         case EINVAL:
 137                 return UBUS_STATUS_INVALID_ARGUMENT;
 138
 139         default:
 140                 return UBUS_STATUS_UNKNOWN_ERROR;
 141         }
 142 }
 143
 144 static void
 145 log_read(FILE *log, int logsize)
 146 {
 147         int len;
 148         char *logbuf;
 149
 150         if (logsize == 0)
 151                 logsize = RPC_LUCI2_DEF_LOGSIZE;
 152
 153         len = (logsize > RPC_LUCI2_MAX_LOGSIZE) ? RPC_LUCI2_MAX_LOGSIZE : logsize;
 154         logbuf = blobmsg_alloc_string_buffer(&buf, "log", len + 1);
 155
 156         if (!logbuf)
 157                 return;
 158
 159         while (logsize > RPC_LUCI2_MAX_LOGSIZE)
 160         {
 161                 len = logsize % RPC_LUCI2_MAX_LOGSIZE;
 162
 163                 if (len == 0)
 164                         len = RPC_LUCI2_MAX_LOGSIZE;
 165
 166                 fread(logbuf, 1, len, log);
 167                 logsize -= len;
 168         }
 169
 170         len = fread(logbuf, 1, logsize, log);
 171         *(logbuf + len) = 0;
 172
 173         blobmsg_add_string_buffer(&buf);
 174 }
 175
 176 static int
 177 rpc_luci2_system_log(struct ubus_context *ctx, struct ubus_object *obj,
 178                      struct ubus_request_data *req, const char *method,
 179                      struct blob_attr *msg)
 180 {
 181         FILE *log;
 182         int logsize = 0;
 183         const char *logfile = NULL;
 184         struct stat st;
 185         struct uci_package *p;
 186         struct uci_element *e;
 187         struct uci_section *s;
 188         struct uci_ptr ptr = { .package = "system" };
 189
 190         uci_load(cursor, ptr.package, &p);
 191
 192         if (!p)
 193                 return UBUS_STATUS_NOT_FOUND;
 194
 195         uci_foreach_element(&p->sections, e)
 196         {
 197                 s = uci_to_section(e);
 198
 199                 if (strcmp(s->type, "system"))
 200                         continue;
 201
 202                 ptr.o = NULL;
 203                 ptr.option = "log_type";
 204                 ptr.section = e->name;
 205                 uci_lookup_ptr(cursor, &ptr, NULL, true);
 206                 break;
 207         }
 208
 209         if (ptr.o && ptr.o->type == UCI_TYPE_STRING &&
 210             !strcmp(ptr.o->v.string, "file"))
 211         {
 212                 ptr.o = NULL;
 213                 ptr.option = "log_file";
 214                 uci_lookup_ptr(cursor, &ptr, NULL, true);
 215
 216                 if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
 217                         logfile = ptr.o->v.string;
 218                 else
 219                         logfile = "/var/log/messages";
 220
 221                 if (stat(logfile, &st) || !(log = fopen(logfile, "r")))
 222                         goto fail;
 223
 224                 logsize = st.st_size;
 225         }
 226         else
 227         {
 228                 ptr.o = NULL;
 229                 ptr.option = "log_size";
 230                 uci_lookup_ptr(cursor, &ptr, NULL, true);
 231
 232                 if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
 233                         logsize = atoi(ptr.o->v.string) * 1024;
 234
 235                 if (!(log = popen("logread", "r")))
 236                         goto fail;
 237         }
 238
 239         blob_buf_init(&buf, 0);
 240
 241         log_read(log, logsize);
 242         fclose(log);
 243
 244         uci_unload(cursor, p);
 245         ubus_send_reply(ctx, req, buf.head);
 246         return 0;
 247
 248 fail:
 249         uci_unload(cursor, p);
 250         return rpc_errno_status();
 251 }
 252
 253 static int
 254 rpc_luci2_system_dmesg(struct ubus_context *ctx, struct ubus_object *obj,
 255                        struct ubus_request_data *req, const char *method,
 256                        struct blob_attr *msg)
 257 {
 258         FILE *log;
 259
 260         if (!(log = popen("dmesg", "r")))
 261                 return rpc_errno_status();
 262
 263         blob_buf_init(&buf, 0);
 264
 265         log_read(log, RPC_LUCI2_MAX_LOGSIZE);
 266         fclose(log);
 267
 268         ubus_send_reply(ctx, req, buf.head);
 269         return 0;
 270 }
 271
 272 static int
 273 rpc_luci2_system_diskfree(struct ubus_context *ctx, struct ubus_object *obj,
 274                           struct ubus_request_data *req, const char *method,
 275                           struct blob_attr *msg)
 276 {
 277         int i;
 278         void *c;
 279         struct statvfs s;
 280         const char *fslist[] = {
 281                 "/",    "root",
 282                 "/tmp", "tmp",
 283         };
 284
 285         blob_buf_init(&buf, 0);
 286
 287         for (i = 0; i < sizeof(fslist) / sizeof(fslist[0]); i += 2)
 288         {
 289                 if (statvfs(fslist[i], &s))
 290                         continue;
 291
 292                 c = blobmsg_open_table(&buf, fslist[i+1]);
 293
 294                 blobmsg_add_u32(&buf, "total", s.f_blocks * s.f_frsize);
 295                 blobmsg_add_u32(&buf, "free",  s.f_bfree  * s.f_frsize);
 296                 blobmsg_add_u32(&buf, "used", (s.f_blocks - s.f_bfree) * s.f_frsize);
 297
 298                 blobmsg_close_table(&buf, c);
 299         }
 300
 301         ubus_send_reply(ctx, req, buf.head);
 302         return 0;
 303 }
 304
 305 static int
 306 rpc_luci2_process_list(struct ubus_context *ctx, struct ubus_object *obj,
 307                        struct ubus_request_data *req, const char *method,
 308                        struct blob_attr *msg)
 309 {
 310         FILE *top;
 311         void *c, *d;
 312         char line[1024];
 313         char *pid, *ppid, *user, *stat, *vsz, *pvsz, *pcpu, *cmd;
 314
 315         if (!(top = popen("/bin/busybox top -bn1", "r")))
 316                 return rpc_errno_status();
 317
 318         blob_buf_init(&buf, 0);
 319         c = blobmsg_open_array(&buf, "processes");
 320
 321         while (fgets(line, sizeof(line) - 1, top))
 322         {
 323                 pid  = strtok(line, " ");
 324
 325                 if (*pid < '0' || *pid > '9')
 326                         continue;
 327
 328                 ppid = strtok(NULL, " ");
 329                 user = strtok(NULL, " ");
 330                 stat = strtok(NULL, " ");
 331
 332                 if (!stat)
 333                         continue;
 334
 335                 if (!*(stat + 1))
 336                         *(stat + 1) = ' ';
 337
 338                 if (!*(stat + 2))
 339                         *(stat + 2) = ' ';
 340
 341                 *(stat + 3) = 0;
 342
 343                 vsz  = strtok(stat + 4, " ");
 344                 pvsz = strtok(NULL, " ");
 345                 pcpu = strtok(NULL, " ");
 346                 cmd  = strtok(NULL, "\n");
 347
 348                 if (!cmd)
 349                         continue;
 350
 351                 d = blobmsg_open_table(&buf, NULL);
 352
 353                 blobmsg_add_u32(&buf, "pid", atoi(pid));
 354                 blobmsg_add_u32(&buf, "ppid", atoi(ppid));
 355                 blobmsg_add_string(&buf, "user", user);
 356                 blobmsg_add_string(&buf, "stat", stat);
 357                 blobmsg_add_u32(&buf, "vsize", atoi(vsz) * 1024);
 358                 blobmsg_add_u32(&buf, "vsize_percent", atoi(pvsz));
 359                 blobmsg_add_u32(&buf, "cpu_percent", atoi(pcpu));
 360                 blobmsg_add_string(&buf, "command", cmd);
 361
 362                 blobmsg_close_table(&buf, d);
 363         }
 364
 365         fclose(top);
 366         blobmsg_close_array(&buf, c);
 367
 368         ubus_send_reply(ctx, req, buf.head);
 369         return 0;
 370 }
 371
 372 static int
 373 rpc_luci2_process_signal(struct ubus_context *ctx, struct ubus_object *obj,
 374                          struct ubus_request_data *req, const char *method,
 375                          struct blob_attr *msg)
 376 {
 377         int pid, sig;
 378         struct blob_attr *tb[__RPC_S_MAX];
 379
 380         blobmsg_parse(rpc_signal_policy, __RPC_S_MAX, tb,
 381                       blob_data(msg), blob_len(msg));
 382
 383         if (!tb[RPC_S_SIGNAL] || !tb[RPC_S_PID])
 384         {
 385                 errno = EINVAL;
 386                 return rpc_errno_status();
 387         }
 388
 389         pid = blobmsg_get_u32(tb[RPC_S_PID]);
 390         sig = blobmsg_get_u32(tb[RPC_S_SIGNAL]);
 391
 392         if (kill(pid, sig))
 393                 return rpc_errno_status();
 394
 395         return 0;
 396 }
 397
 398 static int
 399 rpc_luci2_init_list(struct ubus_context *ctx, struct ubus_object *obj,
 400                     struct ubus_request_data *req, const char *method,
 401                     struct blob_attr *msg)
 402 {
 403         int n;
 404         void *c, *t;
 405         char *p, path[PATH_MAX];
 406         struct stat s;
 407         struct dirent *e;
 408         FILE *f;
 409         DIR *d;
 410
 411         if (!(d = opendir("/etc/init.d")))
 412                 return rpc_errno_status();
 413
 414         blob_buf_init(&buf, 0);
 415         c = blobmsg_open_array(&buf, "initscripts");
 416
 417         while ((e = readdir(d)) != NULL)
 418         {
 419                 snprintf(path, sizeof(path) - 1, "/etc/init.d/%s", e->d_name);
 420
 421                 if (stat(path, &s) || !S_ISREG(s.st_mode) || !(s.st_mode & S_IXUSR))
 422                         continue;
 423
 424                 if ((f = fopen(path, "r")) != NULL)
 425                 {
 426                         n = -1;
 427                         p = fgets(path, sizeof(path) - 1, f);
 428
 429                         if (!p || !strstr(p, "/etc/rc.common"))
 430                                 goto skip;
 431
 432                         t = blobmsg_open_table(&buf, NULL);
 433
 434                         blobmsg_add_string(&buf, "name", e->d_name);
 435
 436                         while (fgets(path, sizeof(path) - 1, f))
 437                         {
 438                                 p = strtok(path, "= \t");
 439
 440                                 if (!strcmp(p, "START") && !!(p = strtok(NULL, "= \t\n")))
 441                                 {
 442                                         n = atoi(p);
 443                                         blobmsg_add_u32(&buf, "start", n);
 444                                 }
 445                                 else if (!strcmp(p, "STOP") && !!(p = strtok(NULL, "= \t\n")))
 446                                 {
 447                                         blobmsg_add_u32(&buf, "stop", atoi(p));
 448                                         break;
 449                                 }
 450                         }
 451
 452                         if (n > -1)
 453                         {
 454                                 snprintf(path, sizeof(path) - 1, "/etc/rc.d/S%02d%s",
 455                                          n, e->d_name);
 456
 457                                 blobmsg_add_u8(&buf, "enabled",
 458                                                (!stat(path, &s) && (s.st_mode & S_IXUSR)));
 459                         }
 460                         else
 461                         {
 462                                 blobmsg_add_u8(&buf, "enabled", 0);
 463                         }
 464
 465                         blobmsg_close_table(&buf, t);
 466
 467 skip:
 468                         fclose(f);
 469                 }
 470         }
 471
 472         closedir(d);
 473         blobmsg_close_array(&buf, c);
 474
 475         ubus_send_reply(ctx, req, buf.head);
 476         return 0;
 477 }
 478
 479 static int
 480 rpc_luci2_init_action(struct ubus_context *ctx, struct ubus_object *obj,
 481                       struct ubus_request_data *req, const char *method,
 482                       struct blob_attr *msg)
 483 {
 484         int fd;
 485         pid_t pid;
 486         struct stat s;
 487         char path[PATH_MAX];
 488         const char *action;
 489         struct blob_attr *tb[__RPC_I_MAX];
 490
 491         blobmsg_parse(rpc_init_policy, __RPC_I_MAX, tb,
 492                       blob_data(msg), blob_len(msg));
 493
 494         if (!tb[RPC_I_NAME] || !tb[RPC_I_ACTION])
 495                 return UBUS_STATUS_INVALID_ARGUMENT;
 496
 497         action = blobmsg_data(tb[RPC_I_ACTION]);
 498
 499         if (strcmp(action, "start") && strcmp(action, "stop") &&
 500             strcmp(action, "reload") && strcmp(action, "restart") &&
 501             strcmp(action, "enable") && strcmp(action, "disable"))
 502                 return UBUS_STATUS_INVALID_ARGUMENT;
 503
 504         snprintf(path, sizeof(path) - 1, "/etc/init.d/%s",
 505                  (char *)blobmsg_data(tb[RPC_I_NAME]));
 506
 507         if (stat(path, &s))
 508                 return rpc_errno_status();
 509
 510         if (!(s.st_mode & S_IXUSR))
 511                 return UBUS_STATUS_PERMISSION_DENIED;
 512
 513         switch ((pid = fork()))
 514         {
 515         case -1:
 516                 return rpc_errno_status();
 517
 518         case 0:
 519                 uloop_done();
 520
 521                 if ((fd = open("/dev/null", O_RDWR)) > -1)
 522                 {
 523                         dup2(fd, 0);
 524                         dup2(fd, 1);
 525                         dup2(fd, 2);
 526
 527                         close(fd);
 528                 }
 529
 530                 chdir("/");
 531
 532                 if (execl(path, path, action, NULL))
 533                         return rpc_errno_status();
 534
 535         default:
 536                 return 0;
 537         }
 538 }
 539
 540 static int
 541 rpc_luci2_rclocal_get(struct ubus_context *ctx, struct ubus_object *obj,
 542                       struct ubus_request_data *req, const char *method,
 543                       struct blob_attr *msg)
 544 {
 545         FILE *f;
 546         char data[4096] = { 0 };
 547
 548         if (!(f = fopen("/etc/rc.local", "r")))
 549                 return rpc_errno_status();
 550
 551         fread(data, sizeof(data) - 1, 1, f);
 552         fclose(f);
 553
 554         blob_buf_init(&buf, 0);
 555         blobmsg_add_string(&buf, "data", data);
 556
 557         ubus_send_reply(ctx, req, buf.head);
 558         return 0;
 559 }
 560
 561 static int
 562 rpc_luci2_rclocal_set(struct ubus_context *ctx, struct ubus_object *obj,
 563                       struct ubus_request_data *req, const char *method,
 564                       struct blob_attr *msg)
 565 {
 566         FILE *f;
 567         struct blob_attr *tb[__RPC_D_MAX];
 568
 569         blobmsg_parse(rpc_data_policy, __RPC_D_MAX, tb,
 570                       blob_data(msg), blob_len(msg));
 571
 572         if (!tb[RPC_D_DATA] || blobmsg_data_len(tb[RPC_D_DATA]) >= 4096)
 573                 return UBUS_STATUS_INVALID_ARGUMENT;
 574
 575         if (!(f = fopen("/etc/rc.local", "w")))
 576                 return rpc_errno_status();
 577
 578         fwrite(blobmsg_data(tb[RPC_D_DATA]),
 579                blobmsg_data_len(tb[RPC_D_DATA]) - 1, 1, f);
 580
 581         fclose(f);
 582         return 0;
 583 }
 584
 585 static int
 586 rpc_luci2_crontab_get(struct ubus_context *ctx, struct ubus_object *obj,
 587                       struct ubus_request_data *req, const char *method,
 588                       struct blob_attr *msg)
 589 {
 590         FILE *f;
 591         char data[4096] = { 0 };
 592
 593         if (!(f = fopen("/etc/crontabs/root", "r")))
 594                 return rpc_errno_status();
 595
 596         fread(data, sizeof(data) - 1, 1, f);
 597         fclose(f);
 598
 599         blob_buf_init(&buf, 0);
 600         blobmsg_add_string(&buf, "data", data);
 601
 602         ubus_send_reply(ctx, req, buf.head);
 603         return 0;
 604 }
 605
 606 static int
 607 rpc_luci2_crontab_set(struct ubus_context *ctx, struct ubus_object *obj,
 608                       struct ubus_request_data *req, const char *method,
 609                       struct blob_attr *msg)
 610 {
 611         FILE *f;
 612         struct stat s;
 613         struct blob_attr *tb[__RPC_D_MAX];
 614
 615         blobmsg_parse(rpc_data_policy, __RPC_D_MAX, tb,
 616                       blob_data(msg), blob_len(msg));
 617
 618         if (!tb[RPC_D_DATA] || blobmsg_data_len(tb[RPC_D_DATA]) >= 4096)
 619                 return UBUS_STATUS_INVALID_ARGUMENT;
 620
 621         if (stat("/etc/crontabs", &s) && mkdir("/etc/crontabs", 0755))
 622                 return rpc_errno_status();
 623
 624         if (!(f = fopen("/etc/crontabs/root", "w")))
 625                 return rpc_errno_status();
 626
 627         fwrite(blobmsg_data(tb[RPC_D_DATA]),
 628                blobmsg_data_len(tb[RPC_D_DATA]) - 1, 1, f);
 629
 630         fclose(f);
 631         return 0;
 632 }
 633
 634 static int
 635 rpc_luci2_sshkeys_get(struct ubus_context *ctx, struct ubus_object *obj,
 636                       struct ubus_request_data *req, const char *method,
 637                       struct blob_attr *msg)
 638 {
 639         FILE *f;
 640         void *c;
 641         char *p, line[4096];
 642
 643         if (!(f = fopen("/etc/dropbear/authorized_keys", "r")))
 644                 return rpc_errno_status();
 645
 646         blob_buf_init(&buf, 0);
 647         c = blobmsg_open_array(&buf, "keys");
 648
 649         while (fgets(line, sizeof(line) - 1, f))
 650         {
 651                 for (p = line + strlen(line) - 1; (p > line) && isspace(*p); p--)
 652                         *p = 0;
 653
 654                 for (p = line; isspace(*p); p++)
 655                         *p = 0;
 656
 657                 if (*p)
 658                         blobmsg_add_string(&buf, NULL, p);
 659         }
 660
 661         blobmsg_close_array(&buf, c);
 662         fclose(f);
 663
 664         ubus_send_reply(ctx, req, buf.head);
 665         return 0;
 666 }
 667
 668 static int
 669 rpc_luci2_sshkeys_set(struct ubus_context *ctx, struct ubus_object *obj,
 670                       struct ubus_request_data *req, const char *method,
 671                       struct blob_attr *msg)
 672 {
 673         FILE *f;
 674         int rem;
 675         struct blob_attr *cur, *tb[__RPC_K_MAX];
 676
 677         blobmsg_parse(rpc_sshkey_policy, __RPC_K_MAX, tb,
 678                       blob_data(msg), blob_len(msg));
 679
 680         if (!tb[RPC_K_KEYS])
 681                 return UBUS_STATUS_INVALID_ARGUMENT;
 682
 683         if (!(f = fopen("/etc/dropbear/authorized_keys", "w")))
 684                 return rpc_errno_status();
 685
 686         blobmsg_for_each_attr(cur, tb[RPC_K_KEYS], rem)
 687         {
 688                 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
 689                         continue;
 690
 691                 fwrite(blobmsg_data(cur), blobmsg_data_len(cur) - 1, 1, f);
 692                 fwrite("\n", 1, 1, f);
 693         }
 694
 695         fclose(f);
 696         return 0;
 697 }
 698
 699 static int
 700 rpc_luci2_password_set(struct ubus_context *ctx, struct ubus_object *obj,
 701                        struct ubus_request_data *req, const char *method,
 702                        struct blob_attr *msg)
 703 {
 704         pid_t pid;
 705         int fd, fds[2];
 706         struct stat s;
 707         struct blob_attr *tb[__RPC_P_MAX];
 708
 709         blobmsg_parse(rpc_password_policy, __RPC_P_MAX, tb,
 710                       blob_data(msg), blob_len(msg));
 711
 712         if (!tb[RPC_P_USER] || !tb[RPC_P_PASSWORD])
 713                 return UBUS_STATUS_INVALID_ARGUMENT;
 714
 715         if (stat("/usr/bin/passwd", &s))
 716                 return UBUS_STATUS_NOT_FOUND;
 717
 718         if (!(s.st_mode & S_IXUSR))
 719                 return UBUS_STATUS_PERMISSION_DENIED;
 720
 721         if (pipe(fds))
 722                 return rpc_errno_status();
 723
 724         switch ((pid = fork()))
 725         {
 726         case -1:
 727                 close(fds[0]);
 728                 close(fds[1]);
 729                 return rpc_errno_status();
 730
 731         case 0:
 732                 uloop_done();
 733
 734                 dup2(fds[0], 0);
 735                 close(fds[0]);
 736                 close(fds[1]);
 737
 738                 if ((fd = open("/dev/null", O_RDWR)) > -1)
 739                 {
 740                         dup2(fd, 1);
 741                         dup2(fd, 2);
 742                         close(fd);
 743                 }
 744
 745                 chdir("/");
 746
 747                 if (execl("/usr/bin/passwd", "/usr/bin/passwd",
 748                           blobmsg_data(tb[RPC_P_USER]), NULL))
 749                         return rpc_errno_status();
 750
 751         default:
 752                 close(fds[0]);
 753
 754                 write(fds[1], blobmsg_data(tb[RPC_P_PASSWORD]),
 755                               blobmsg_data_len(tb[RPC_P_PASSWORD]) - 1);
 756                 write(fds[1], "\n", 1);
 757
 758                 usleep(100 * 1000);
 759
 760                 write(fds[1], blobmsg_data(tb[RPC_P_PASSWORD]),
 761                               blobmsg_data_len(tb[RPC_P_PASSWORD]) - 1);
 762                 write(fds[1], "\n", 1);
 763
 764                 close(fds[1]);
 765
 766                 waitpid(pid, NULL, 0);
 767
 768                 return 0;
 769         }
 770 }
 771
 772 static int
 773 rpc_luci2_led_list(struct ubus_context *ctx, struct ubus_object *obj,
 774                    struct ubus_request_data *req, const char *method,
 775                    struct blob_attr *msg)
 776 {
 777         DIR *d;
 778         FILE *f;
 779         void *list, *led, *trigger;
 780         char *p, *active_trigger, line[512];
 781         struct dirent *e;
 782
 783         if (!(d = opendir("/sys/class/leds")))
 784                 return rpc_errno_status();
 785
 786         blob_buf_init(&buf, 0);
 787         list = blobmsg_open_array(&buf, "leds");
 788
 789         while ((e = readdir(d)) != NULL)
 790         {
 791                 snprintf(line, sizeof(line) - 1, "/sys/class/leds/%s/trigger",
 792                          e->d_name);
 793
 794                 if (!(f = fopen(line, "r")))
 795                         continue;
 796
 797                 led = blobmsg_open_table(&buf, NULL);
 798
 799                 blobmsg_add_string(&buf, "name", e->d_name);
 800
 801                 if (fgets(line, sizeof(line) - 1, f))
 802                 {
 803                         trigger = blobmsg_open_array(&buf, "triggers");
 804
 805                         for (p = strtok(line, " \n"), active_trigger = NULL;
 806                              p != NULL;
 807                              p = strtok(NULL, " \n"))
 808                         {
 809                                 if (*p == '[')
 810                                 {
 811                                         *(p + strlen(p) - 1) = 0;
 812                                         *p++ = 0;
 813                                         active_trigger = p;
 814                                 }
 815
 816                                 blobmsg_add_string(&buf, NULL, p);
 817                         }
 818
 819                         blobmsg_close_array(&buf, trigger);
 820
 821                         if (active_trigger)
 822                                 blobmsg_add_string(&buf, "active_trigger", active_trigger);
 823                 }
 824
 825                 fclose(f);
 826
 827                 snprintf(line, sizeof(line) - 1, "/sys/class/leds/%s/brightness",
 828                          e->d_name);
 829
 830                 if ((f = fopen(line, "r")) != NULL)
 831                 {
 832                         if (fgets(line, sizeof(line) - 1, f))
 833                                 blobmsg_add_u32(&buf, "brightness", atoi(line));
 834
 835                         fclose(f);
 836                 }
 837
 838                 snprintf(line, sizeof(line) - 1, "/sys/class/leds/%s/max_brightness",
 839                          e->d_name);
 840
 841                 if ((f = fopen(line, "r")) != NULL)
 842                 {
 843                         if (fgets(line, sizeof(line) - 1, f))
 844                                 blobmsg_add_u32(&buf, "max_brightness", atoi(line));
 845
 846                         fclose(f);
 847                 }
 848
 849                 blobmsg_close_table(&buf, led);
 850         }
 851
 852         closedir(d);
 853
 854         blobmsg_close_array(&buf, list);
 855         ubus_send_reply(ctx, req, buf.head);
 856
 857         return 0;
 858 }
 859
 860 static int
 861 rpc_luci2_usb_list(struct ubus_context *ctx, struct ubus_object *obj,
 862                    struct ubus_request_data *req, const char *method,
 863                    struct blob_attr *msg)
 864 {
 865         DIR *d;
 866         FILE *f;
 867         int i;
 868         void *list, *device;
 869         char *p, line[512];
 870         struct stat s;
 871         struct dirent *e;
 872
 873         const char *attributes[] = {
 874                 "manufacturer", "vendor_name",  "s",
 875                 "product",      "product_name", "s",
 876                 "idVendor",     "vendor_id",    "x",
 877                 "idProduct",    "product_id",   "x",
 878                 "serial",       "serial",       "s",
 879                 "speed",        "speed",        "d",
 880         };
 881
 882         if (!(d = opendir("/sys/bus/usb/devices")))
 883                 return rpc_errno_status();
 884
 885         blob_buf_init(&buf, 0);
 886         list = blobmsg_open_array(&buf, "devices");
 887
 888         while ((e = readdir(d)) != NULL)
 889         {
 890                 if (e->d_name[0] < '0' || e->d_name[0] > '9')
 891                         continue;
 892
 893                 snprintf(line, sizeof(line) - 1,
 894                          "/sys/bus/usb/devices/%s/%s", e->d_name, attributes[0]);
 895
 896                 if (stat(line, &s))
 897                         continue;
 898
 899                 device = blobmsg_open_table(&buf, NULL);
 900
 901                 blobmsg_add_string(&buf, "name", e->d_name);
 902
 903                 for (i = 0; i < sizeof(attributes) / sizeof(attributes[0]); i += 3)
 904                 {
 905                         snprintf(line, sizeof(line) - 1,
 906                                          "/sys/bus/usb/devices/%s/%s", e->d_name, attributes[i]);
 907
 908                         if (!(f = fopen(line, "r")))
 909                                 continue;
 910
 911                         if (fgets(line, sizeof(line) - 1, f))
 912                         {
 913                                 switch (*attributes[i+2])
 914                                 {
 915                                 case 'x':
 916                                         blobmsg_add_u32(&buf, attributes[i+1],
 917                                                         strtoul(line, NULL, 16));
 918                                         break;
 919
 920                                 case 'd':
 921                                         blobmsg_add_u32(&buf, attributes[i+1],
 922                                                         strtoul(line, NULL, 10));
 923                                         break;
 924
 925                                 default:
 926                                         if ((p = strchr(line, '\n')) != NULL)
 927                                                 while (p > line && isspace(*p))
 928                                                         *p-- = 0;
 929
 930                                         blobmsg_add_string(&buf, attributes[i+1], line);
 931                                         break;
 932                                 }
 933                         }
 934
 935                         fclose(f);
 936                 }
 937
 938                 blobmsg_close_table(&buf, device);
 939         }
 940
 941         closedir(d);
 942
 943         blobmsg_close_array(&buf, list);
 944         ubus_send_reply(ctx, req, buf.head);
 945
 946         return 0;
 947 }
 948
 949
 950 static FILE *
 951 dnsmasq_leasefile(void)
 952 {
 953         FILE *leases = NULL;
 954         struct uci_package *p;
 955         struct uci_element *e;
 956         struct uci_section *s;
 957         struct uci_ptr ptr = {
 958                 .package = "dhcp",
 959                 .section = NULL,
 960                 .option  = "leasefile"
 961         };
 962
 963         uci_load(cursor, ptr.package, &p);
 964
 965         if (!p)
 966                 return NULL;
 967
 968         uci_foreach_element(&p->sections, e)
 969         {
 970                 s = uci_to_section(e);
 971
 972                 if (strcmp(s->type, "dnsmasq"))
 973                         continue;
 974
 975                 ptr.section = e->name;
 976                 uci_lookup_ptr(cursor, &ptr, NULL, true);
 977                 break;
 978         }
 979
 980         if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
 981                 leases = fopen(ptr.o->v.string, "r");
 982
 983         uci_unload(cursor, p);
 984
 985         return leases;
 986 }
 987
 988 static int
 989 rpc_luci2_network_leases(struct ubus_context *ctx, struct ubus_object *obj,
 990                          struct ubus_request_data *req, const char *method,
 991                          struct blob_attr *msg)
 992 {
 993         FILE *leases;
 994         void *c, *d;
 995         char line[128];
 996         char *ts, *mac, *addr, *name;
 997         time_t now = time(NULL);
 998
 999         blob_buf_init(&buf, 0);
1000         c = blobmsg_open_array(&buf, "leases");
1001
1002         leases = dnsmasq_leasefile();
1003
1004         if (!leases)
1005                 goto out;
1006
1007         while (fgets(line, sizeof(line) - 1, leases))
1008         {
1009                 ts   = strtok(line, " \t");
1010                 mac  = strtok(NULL, " \t");
1011                 addr = strtok(NULL, " \t");
1012                 name = strtok(NULL, " \t");
1013
1014                 if (!ts || !mac || !addr || !name)
1015                         continue;
1016
1017                 if (strchr(addr, ':'))
1018                         continue;
1019
1020                 d = blobmsg_open_table(&buf, NULL);
1021
1022                 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
1023                 blobmsg_add_string(&buf, "macaddr", mac);
1024                 blobmsg_add_string(&buf, "ipaddr", addr);
1025
1026                 if (strcmp(name, "*"))
1027                         blobmsg_add_string(&buf, "hostname", name);
1028
1029                 blobmsg_close_table(&buf, d);
1030         }
1031
1032         fclose(leases);
1033
1034 out:
1035         blobmsg_close_array(&buf, c);
1036         ubus_send_reply(ctx, req, buf.head);
1037
1038         return 0;
1039 }
1040
1041 static int
1042 rpc_luci2_network_leases6(struct ubus_context *ctx, struct ubus_object *obj,
1043                           struct ubus_request_data *req, const char *method,
1044                           struct blob_attr *msg)
1045 {
1046         FILE *leases;
1047         void *c, *d;
1048         char line[128];
1049         char *ts, *mac, *addr, *name, *duid;
1050         time_t now = time(NULL);
1051
1052         blob_buf_init(&buf, 0);
1053         c = blobmsg_open_array(&buf, "leases");
1054
1055         leases = fopen("/tmp/hosts/6relayd", "r");
1056
1057         if (leases)
1058         {
1059                 while (fgets(line, sizeof(line) - 1, leases))
1060                 {
1061                         if (strncmp(line, "# ", 2))
1062                                 continue;
1063
1064                         strtok(line + 2, " \t"); /* iface */
1065
1066                         duid = strtok(NULL, " \t");
1067
1068                         strtok(NULL, " \t"); /* iaid */
1069
1070                         name = strtok(NULL, " \t");
1071                         ts   = strtok(NULL, " \t");
1072
1073                         strtok(NULL, " \t"); /* id */
1074                         strtok(NULL, " \t"); /* length */
1075
1076                         addr = strtok(NULL, " \t\n");
1077
1078                         if (!addr)
1079                                 continue;
1080
1081                         d = blobmsg_open_table(&buf, NULL);
1082
1083                         blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
1084                         blobmsg_add_string(&buf, "duid", duid);
1085                         blobmsg_add_string(&buf, "ip6addr", addr);
1086
1087                         if (strcmp(name, "-"))
1088                                 blobmsg_add_string(&buf, "hostname", name);
1089
1090                         blobmsg_close_array(&buf, d);
1091                 }
1092
1093                 fclose(leases);
1094         }
1095         else
1096         {
1097                 leases = dnsmasq_leasefile();
1098
1099                 if (!leases)
1100                         goto out;
1101
1102                 while (fgets(line, sizeof(line) - 1, leases))
1103                 {
1104                         ts   = strtok(line, " \t");
1105                         mac  = strtok(NULL, " \t");
1106                         addr = strtok(NULL, " \t");
1107                         name = strtok(NULL, " \t");
1108                         duid = strtok(NULL, " \t\n");
1109
1110                         if (!ts || !mac || !addr || !duid)
1111                                 continue;
1112
1113                         if (!strchr(addr, ':'))
1114                                 continue;
1115
1116                         d = blobmsg_open_table(&buf, NULL);
1117
1118                         blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
1119                         blobmsg_add_string(&buf, "macaddr", mac);
1120                         blobmsg_add_string(&buf, "ip6addr", addr);
1121
1122                         if (strcmp(name, "*"))
1123                                 blobmsg_add_string(&buf, "hostname", name);
1124
1125                         if (strcmp(duid, "*"))
1126                                 blobmsg_add_string(&buf, "duid", name);
1127
1128                         blobmsg_close_table(&buf, d);
1129                 }
1130
1131                 fclose(leases);
1132         }
1133
1134 out:
1135         blobmsg_close_array(&buf, c);
1136         ubus_send_reply(ctx, req, buf.head);
1137
1138         return 0;
1139 }
1140
1141 static int
1142 rpc_luci2_network_ct_count(struct ubus_context *ctx, struct ubus_object *obj,
1143                            struct ubus_request_data *req, const char *method,
1144                            struct blob_attr *msg)
1145 {
1146         FILE *f;
1147         char line[128];
1148
1149         blob_buf_init(&buf, 0);
1150
1151         if ((f = fopen("/proc/sys/net/netfilter/nf_conntrack_count", "r")) != NULL)
1152         {
1153                 if (fgets(line, sizeof(line) - 1, f))
1154                         blobmsg_add_u32(&buf, "count", atoi(line));
1155
1156                 fclose(f);
1157         }
1158
1159         if ((f = fopen("/proc/sys/net/netfilter/nf_conntrack_max", "r")) != NULL)
1160         {
1161                 if (fgets(line, sizeof(line) - 1, f))
1162                         blobmsg_add_u32(&buf, "limit", atoi(line));
1163
1164                 fclose(f);
1165         }
1166
1167         ubus_send_reply(ctx, req, buf.head);
1168
1169         return 0;
1170 }
1171
1172 static int
1173 rpc_luci2_network_ct_table(struct ubus_context *ctx, struct ubus_object *obj,
1174                            struct ubus_request_data *req, const char *method,
1175                            struct blob_attr *msg)
1176 {
1177         FILE *f;
1178         int i;
1179         void *c, *d;
1180         char *p, line[512];
1181         bool seen[6];
1182
1183         blob_buf_init(&buf, 0);
1184         c = blobmsg_open_array(&buf, "entries");
1185
1186         if ((f = fopen("/proc/net/nf_conntrack", "r")) != NULL)
1187         {
1188                 while (fgets(line, sizeof(line) - 1, f))
1189                 {
1190                         d = blobmsg_open_table(&buf, NULL);
1191                         memset(seen, 0, sizeof(seen));
1192
1193                         for (i = 0, p = strtok(line, " "); p; i++, p = strtok(NULL, " "))
1194                         {
1195                                 if (i == 0)
1196                                         blobmsg_add_u8(&buf, "ipv6", !strcmp(p, "ipv6"));
1197                                 else if (i == 3)
1198                                         blobmsg_add_u32(&buf, "protocol", atoi(p));
1199                                 else if (i == 4)
1200                                         blobmsg_add_u32(&buf, "expires", atoi(p));
1201                                 else if (i >= 5)
1202                                 {
1203                                         if (*p == '[')
1204                                                 continue;
1205
1206                                         if (!seen[0] && !strncmp(p, "src=", 4))
1207                                         {
1208                                                 blobmsg_add_string(&buf, "src", p + 4);
1209                                                 seen[0] = true;
1210                                         }
1211                                         else if (!seen[1] && !strncmp(p, "dst=", 4))
1212                                         {
1213                                                 blobmsg_add_string(&buf, "dest", p + 4);
1214                                                 seen[1] = true;
1215                                         }
1216                                         else if (!seen[2] && !strncmp(p, "sport=", 6))
1217                                         {
1218                                                 blobmsg_add_u32(&buf, "sport", atoi(p + 6));
1219                                                 seen[2] = true;
1220                                         }
1221                                         else if (!seen[3] && !strncmp(p, "dport=", 6))
1222                                         {
1223                                                 blobmsg_add_u32(&buf, "dport", atoi(p + 6));
1224                                                 seen[3] = true;
1225                                         }
1226                                         else if (!strncmp(p, "packets=", 8))
1227                                         {
1228                                                 blobmsg_add_u32(&buf,
1229                                                                 seen[4] ? "tx_packets" : "rx_packets",
1230                                                                 atoi(p + 8));
1231                                                 seen[4] = true;
1232                                         }
1233                                         else if (!strncmp(p, "bytes=", 6))
1234                                         {
1235                                                 blobmsg_add_u32(&buf,
1236                                                                                 seen[5] ? "tx_bytes" : "rx_bytes",
1237                                                                 atoi(p + 6));
1238                                                 seen[5] = true;
1239                                         }
1240                                 }
1241                         }
1242
1243                         blobmsg_close_table(&buf, d);
1244                 }
1245
1246                 fclose(f);
1247         }
1248
1249         blobmsg_close_array(&buf, c);
1250         ubus_send_reply(ctx, req, buf.head);
1251
1252         return 0;
1253 }
1254
1255 static int
1256 rpc_luci2_network_arp_table(struct ubus_context *ctx, struct ubus_object *obj,
1257                             struct ubus_request_data *req, const char *method,
1258                             struct blob_attr *msg)
1259 {
1260         FILE *f;
1261         void *c, *d;
1262         char *addr, *mac, *dev, line[128];
1263
1264         blob_buf_init(&buf, 0);
1265         c = blobmsg_open_array(&buf, "entries");
1266
1267         if ((f = fopen("/proc/net/arp", "r")) != NULL)
1268         {
1269                 /* skip header line */
1270                 fgets(line, sizeof(line) - 1, f);
1271
1272                 while (fgets(line, sizeof(line) - 1, f))
1273                 {
1274                         addr = strtok(line, " \t");
1275
1276                         strtok(NULL, " \t"); /* HW type */
1277                         strtok(NULL, " \t"); /* Flags */
1278
1279                         mac = strtok(NULL, " \t");
1280
1281                         strtok(NULL, " \t"); /* Mask */
1282
1283                         dev = strtok(NULL, " \t\n");
1284
1285                         if (!dev)
1286                                 continue;
1287
1288                         d = blobmsg_open_table(&buf, NULL);
1289                         blobmsg_add_string(&buf, "ipaddr", addr);
1290                         blobmsg_add_string(&buf, "macaddr", mac);
1291                         blobmsg_add_string(&buf, "device", dev);
1292                         blobmsg_close_table(&buf, d);
1293                 }
1294
1295                 fclose(f);
1296         }
1297
1298         blobmsg_close_array(&buf, c);
1299         ubus_send_reply(ctx, req, buf.head);
1300
1301         return 0;
1302 }
1303
1304 static void
1305 put_hexaddr(const char *name, const char *s, const char *m)
1306 {
1307         int bits;
1308         struct in_addr a;
1309         char as[sizeof("255.255.255.255/32\0")];
1310
1311         a.s_addr = strtoul(s, NULL, 16);
1312         inet_ntop(AF_INET, &a, as, sizeof(as));
1313
1314         if (m)
1315         {
1316                 for (a.s_addr = ntohl(strtoul(m, NULL, 16)), bits = 0;
1317                      a.s_addr & 0x80000000;
1318                      a.s_addr <<= 1)
1319                         bits++;
1320
1321                 sprintf(as + strlen(as), "/%u", bits);
1322         }
1323
1324         blobmsg_add_string(&buf, name, as);
1325 }
1326
1327 static int
1328 rpc_luci2_network_routes(struct ubus_context *ctx, struct ubus_object *obj,
1329                          struct ubus_request_data *req, const char *method,
1330                          struct blob_attr *msg)
1331 {
1332         FILE *routes;
1333         void *c, *d;
1334         char *dst, *dmask, *next, *metric, *device;
1335         char line[256];
1336         unsigned int n;
1337
1338         if (!(routes = fopen("/proc/net/route", "r")))
1339                 return rpc_errno_status();
1340
1341         blob_buf_init(&buf, 0);
1342         c = blobmsg_open_array(&buf, "routes");
1343
1344         /* skip header line */
1345         fgets(line, sizeof(line) - 1, routes);
1346
1347         while (fgets(line, sizeof(line) - 1, routes))
1348         {
1349                 device = strtok(line, "\t ");
1350                 dst    = strtok(NULL, "\t ");
1351                 next   = strtok(NULL, "\t ");
1352
1353                 strtok(NULL, "\t "); /* flags */
1354                 strtok(NULL, "\t "); /* refcount */
1355                 strtok(NULL, "\t "); /* usecount */
1356
1357                 metric = strtok(NULL, "\t ");
1358                 dmask  = strtok(NULL, "\t ");
1359
1360                 if (!dmask)
1361                         continue;
1362
1363                 d = blobmsg_open_table(&buf, NULL);
1364
1365                 put_hexaddr("target", dst, dmask);
1366                 put_hexaddr("nexthop", next, NULL);
1367
1368                 n = strtoul(metric, NULL, 10);
1369                 blobmsg_add_u32(&buf, "metric", n);
1370
1371                 blobmsg_add_string(&buf, "device", device);
1372
1373                 blobmsg_close_table(&buf, d);
1374         }
1375
1376         blobmsg_close_array(&buf, c);
1377         fclose(routes);
1378
1379         ubus_send_reply(ctx, req, buf.head);
1380         return 0;
1381 }
1382
1383 static void
1384 put_hex6addr(const char *name, const char *s, const char *m)
1385 {
1386         int i;
1387         struct in6_addr a;
1388         char as[INET6_ADDRSTRLEN + sizeof("/128")];
1389
1390 #define hex(x) \
1391         (((x) <= '9') ? ((x) - '0') : \
1392                 (((x) <= 'F') ? ((x) - 'A' + 10) : \
1393                         ((x) - 'a' + 10)))
1394
1395         for (i = 0; i < 16; i++, s += 2)
1396                 a.s6_addr[i] = (16 * hex(*s)) + hex(*(s+1));
1397
1398         inet_ntop(AF_INET6, &a, as, sizeof(as));
1399
1400         if (m)
1401                 sprintf(as + strlen(as), "/%lu", strtoul(m, NULL, 16));
1402
1403         blobmsg_add_string(&buf, name, as);
1404 }
1405
1406 static int
1407 rpc_luci2_network_routes6(struct ubus_context *ctx, struct ubus_object *obj,
1408                           struct ubus_request_data *req, const char *method,
1409                           struct blob_attr *msg)
1410 {
1411         FILE *routes;
1412         void *c, *d;
1413         char *src, *smask, *dst, *dmask, *next, *metric, *flags, *device;
1414         char line[256];
1415         unsigned int n;
1416
1417         if (!(routes = fopen("/proc/net/ipv6_route", "r")))
1418                 return rpc_errno_status();
1419
1420         blob_buf_init(&buf, 0);
1421         c = blobmsg_open_array(&buf, "routes");
1422
1423         while (fgets(line, sizeof(line) - 1, routes))
1424         {
1425                 dst    = strtok(line, " ");
1426                 dmask  = strtok(NULL, " ");
1427                 src    = strtok(NULL, " ");
1428                 smask  = strtok(NULL, " ");
1429                 next   = strtok(NULL, " ");
1430                 metric = strtok(NULL, " ");
1431
1432                 strtok(NULL, " "); /* refcount */
1433                 strtok(NULL, " "); /* usecount */
1434
1435                 flags  = strtok(NULL, " ");
1436                 device = strtok(NULL, " \n");
1437
1438                 if (!device)
1439                         continue;
1440
1441                 n = strtoul(flags, NULL, 16);
1442
1443                 if (!(n & 1))
1444                         continue;
1445
1446                 d = blobmsg_open_table(&buf, NULL);
1447
1448                 put_hex6addr("target", dst, dmask);
1449                 put_hex6addr("source", src, smask);
1450                 put_hex6addr("nexthop", next, NULL);
1451
1452                 n = strtoul(metric, NULL, 16);
1453                 blobmsg_add_u32(&buf, "metric", n);
1454
1455                 blobmsg_add_string(&buf, "device", device);
1456
1457                 blobmsg_close_table(&buf, d);
1458         }
1459
1460         blobmsg_close_array(&buf, c);
1461         fclose(routes);
1462
1463         ubus_send_reply(ctx, req, buf.head);
1464         return 0;
1465 }
1466
1467
1468 struct opkg_state {
1469         int cur_offset;
1470         int cur_count;
1471         int req_offset;
1472         int req_count;
1473         int total;
1474         bool open;
1475         void *array;
1476 };
1477
1478 static int
1479 opkg_parse_list(struct blob_buf *blob, char *buf, int len, void *priv)
1480 {
1481         struct opkg_state *s = priv;
1482
1483         char *ptr, *last;
1484         char *nl = strchr(buf, '\n');
1485         char *name = NULL, *vers = NULL, *desc = NULL;
1486         void *c;
1487
1488         if (!nl)
1489                 return 0;
1490
1491         s->total++;
1492
1493         if (s->cur_offset++ < s->req_offset)
1494                 goto skip;
1495
1496         if (s->cur_count++ >= s->req_count)
1497                 goto skip;
1498
1499         if (!s->open)
1500         {
1501                 s->open  = true;
1502                 s->array = blobmsg_open_array(blob, "packages");
1503         }
1504
1505         for (ptr = buf, last = buf, *nl = 0; ptr <= nl; ptr++)
1506         {
1507                 if (!*ptr || (*ptr == ' ' && *(ptr+1) == '-' && *(ptr+2) == ' '))
1508                 {
1509                         if (!name)
1510                         {
1511                                 name = last;
1512                                 last = ptr + 3;
1513                                 *ptr = 0;
1514                                 ptr += 2;
1515                         }
1516                         else if (!vers)
1517                         {
1518                                 vers = last;
1519                                 desc = *ptr ? (ptr + 3) : NULL;
1520                                 *ptr = 0;
1521                                 break;
1522                         }
1523                 }
1524         }
1525
1526         if (name && vers)
1527         {
1528                 c = blobmsg_open_array(blob, NULL);
1529
1530                 blobmsg_add_string(blob, NULL, name);
1531                 blobmsg_add_string(blob, NULL, vers);
1532
1533                 if (desc && *desc)
1534                         blobmsg_add_string(blob, NULL, desc);
1535
1536                 blobmsg_close_array(blob, c);
1537         }
1538
1539 skip:
1540         return (nl - buf + 1);
1541 }
1542
1543 static void
1544 opkg_finish_list(struct blob_buf *blob, int status, void *priv)
1545 {
1546         struct opkg_state *s = priv;
1547
1548         if (!s->open)
1549                 return;
1550
1551         blobmsg_close_array(blob, s->array);
1552         blobmsg_add_u32(blob, "total", s->total);
1553 }
1554
1555 static int
1556 opkg_exec_list(const char *action, struct blob_attr *msg,
1557                struct ubus_context *ctx, struct ubus_request_data *req)
1558 {
1559         struct opkg_state *state = NULL;
1560         struct blob_attr *tb[__RPC_OM_MAX];
1561         const char *cmd[5] = { "opkg", action, "-nocase", NULL, NULL };
1562
1563         blobmsg_parse(rpc_opkg_match_policy, __RPC_OM_MAX, tb,
1564                       blob_data(msg), blob_len(msg));
1565
1566         state = malloc(sizeof(*state));
1567
1568         if (!state)
1569                 return UBUS_STATUS_UNKNOWN_ERROR;
1570
1571         memset(state, 0, sizeof(*state));
1572
1573         if (tb[RPC_OM_PATTERN])
1574                 cmd[3] = blobmsg_data(tb[RPC_OM_PATTERN]);
1575
1576         if (tb[RPC_OM_LIMIT])
1577                 state->req_count = blobmsg_get_u32(tb[RPC_OM_LIMIT]);
1578
1579         if (tb[RPC_OM_OFFSET])
1580                 state->req_offset = blobmsg_get_u32(tb[RPC_OM_OFFSET]);
1581
1582         if (state->req_offset < 0)
1583                 state->req_offset = 0;
1584
1585         if (state->req_count <= 0 || state->req_count > 100)
1586                 state->req_count = 100;
1587
1588         return rpc_exec(cmd, opkg_parse_list, NULL, opkg_finish_list,
1589                         state, ctx, req);
1590 }
1591
1592
1593 static int
1594 rpc_luci2_opkg_list(struct ubus_context *ctx, struct ubus_object *obj,
1595                     struct ubus_request_data *req, const char *method,
1596                     struct blob_attr *msg)
1597 {
1598         return opkg_exec_list("list", msg, ctx, req);
1599 }
1600
1601 static int
1602 rpc_luci2_opkg_list_installed(struct ubus_context *ctx, struct ubus_object *obj,
1603                               struct ubus_request_data *req, const char *method,
1604                               struct blob_attr *msg)
1605 {
1606         return opkg_exec_list("list-installed", msg, ctx, req);
1607 }
1608
1609 static int
1610 rpc_luci2_opkg_find(struct ubus_context *ctx, struct ubus_object *obj,
1611                     struct ubus_request_data *req, const char *method,
1612                     struct blob_attr *msg)
1613 {
1614         return opkg_exec_list("find", msg, ctx, req);
1615 }
1616
1617 static int
1618 rpc_luci2_opkg_update(struct ubus_context *ctx, struct ubus_object *obj,
1619                       struct ubus_request_data *req, const char *method,
1620                       struct blob_attr *msg)
1621 {
1622         const char *cmd[3] = { "opkg", "update", NULL };
1623         return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
1624 }
1625
1626 static int
1627 rpc_luci2_opkg_install(struct ubus_context *ctx, struct ubus_object *obj,
1628                        struct ubus_request_data *req, const char *method,
1629                        struct blob_attr *msg)
1630 {
1631         struct blob_attr *tb[__RPC_OP_MAX];
1632         const char *cmd[5] = { "opkg", "--force-overwrite",
1633                                "install", NULL, NULL };
1634
1635         blobmsg_parse(rpc_opkg_package_policy, __RPC_OP_MAX, tb,
1636                       blob_data(msg), blob_len(msg));
1637
1638         if (!tb[RPC_OP_PACKAGE])
1639                 return UBUS_STATUS_INVALID_ARGUMENT;
1640
1641         cmd[3] = blobmsg_data(tb[RPC_OP_PACKAGE]);
1642
1643         return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
1644 }
1645
1646 static int
1647 rpc_luci2_opkg_remove(struct ubus_context *ctx, struct ubus_object *obj,
1648                       struct ubus_request_data *req, const char *method,
1649                       struct blob_attr *msg)
1650 {
1651         struct blob_attr *tb[__RPC_OP_MAX];
1652         const char *cmd[5] = { "opkg", "--force-removal-of-dependent-packages",
1653                                "remove", NULL, NULL };
1654
1655         blobmsg_parse(rpc_opkg_package_policy, __RPC_OP_MAX, tb,
1656                       blob_data(msg), blob_len(msg));
1657
1658         if (!tb[RPC_OP_PACKAGE])
1659                 return UBUS_STATUS_INVALID_ARGUMENT;
1660
1661         cmd[3] = blobmsg_data(tb[RPC_OP_PACKAGE]);
1662
1663         return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
1664 }
1665
1666 static int
1667 rpc_luci2_opkg_config_get(struct ubus_context *ctx, struct ubus_object *obj,
1668                           struct ubus_request_data *req, const char *method,
1669                           struct blob_attr *msg)
1670 {
1671         FILE *f;
1672         char conf[2048] = { 0 };
1673
1674         if (!(f = fopen("/etc/opkg.conf", "r")))
1675                 return rpc_errno_status();
1676
1677         fread(conf, sizeof(conf) - 1, 1, f);
1678         fclose(f);
1679
1680         blob_buf_init(&buf, 0);
1681         blobmsg_add_string(&buf, "config", conf);
1682
1683         ubus_send_reply(ctx, req, buf.head);
1684         return 0;
1685 }
1686
1687 static int
1688 rpc_luci2_opkg_config_set(struct ubus_context *ctx, struct ubus_object *obj,
1689                           struct ubus_request_data *req, const char *method,
1690                           struct blob_attr *msg)
1691 {
1692         FILE *f;
1693         struct blob_attr *tb[__RPC_OC_MAX];
1694
1695         blobmsg_parse(rpc_opkg_package_policy, __RPC_OC_MAX, tb,
1696                       blob_data(msg), blob_len(msg));
1697
1698         if (!tb[RPC_OC_CONFIG])
1699                 return UBUS_STATUS_INVALID_ARGUMENT;
1700
1701         if (blobmsg_type(tb[RPC_OC_CONFIG]) != BLOBMSG_TYPE_STRING)
1702                 return UBUS_STATUS_INVALID_ARGUMENT;
1703
1704         if (blobmsg_data_len(tb[RPC_OC_CONFIG]) >= 2048)
1705                 return UBUS_STATUS_NOT_SUPPORTED;
1706
1707         if (!(f = fopen("/etc/opkg.conf", "w")))
1708                 return rpc_errno_status();
1709
1710         fwrite(blobmsg_data(tb[RPC_OC_CONFIG]),
1711                blobmsg_data_len(tb[RPC_OC_CONFIG]), 1, f);
1712
1713         fclose(f);
1714         return 0;
1715 }
1716
1717
1718 int rpc_luci2_api_init(struct ubus_context *ctx)
1719 {
1720         int rv = 0;
1721
1722         static const struct ubus_method luci2_system_methods[] = {
1723                 UBUS_METHOD_NOARG("syslog",       rpc_luci2_system_log),
1724                 UBUS_METHOD_NOARG("dmesg",        rpc_luci2_system_dmesg),
1725                 UBUS_METHOD_NOARG("diskfree",     rpc_luci2_system_diskfree),
1726                 UBUS_METHOD_NOARG("process_list", rpc_luci2_process_list),
1727                 UBUS_METHOD("process_signal",     rpc_luci2_process_signal,
1728                                                   rpc_signal_policy),
1729                 UBUS_METHOD_NOARG("init_list",    rpc_luci2_init_list),
1730                 UBUS_METHOD("init_action",        rpc_luci2_init_action,
1731                                                   rpc_init_policy),
1732                 UBUS_METHOD_NOARG("rclocal_get",  rpc_luci2_rclocal_get),
1733                 UBUS_METHOD("rclocal_set",        rpc_luci2_rclocal_set,
1734                                                   rpc_data_policy),
1735                 UBUS_METHOD_NOARG("crontab_get",  rpc_luci2_crontab_get),
1736                 UBUS_METHOD("crontab_set",        rpc_luci2_crontab_set,
1737                                                   rpc_data_policy),
1738                 UBUS_METHOD_NOARG("sshkeys_get",  rpc_luci2_sshkeys_get),
1739                 UBUS_METHOD("sshkeys_set",        rpc_luci2_sshkeys_set,
1740                                                   rpc_sshkey_policy),
1741                 UBUS_METHOD("password_set",       rpc_luci2_password_set,
1742                                                   rpc_password_policy),
1743                 UBUS_METHOD_NOARG("led_list",     rpc_luci2_led_list),
1744                 UBUS_METHOD_NOARG("usb_list",     rpc_luci2_usb_list)
1745         };
1746
1747         static struct ubus_object_type luci2_system_type =
1748                 UBUS_OBJECT_TYPE("luci-rpc-luci2-system", luci2_system_methods);
1749
1750         static struct ubus_object system_obj = {
1751                 .name = "luci2.system",
1752                 .type = &luci2_system_type,
1753                 .methods = luci2_system_methods,
1754                 .n_methods = ARRAY_SIZE(luci2_system_methods),
1755         };
1756
1757
1758         static const struct ubus_method luci2_network_methods[] = {
1759                 UBUS_METHOD_NOARG("conntrack_count", rpc_luci2_network_ct_count),
1760                 UBUS_METHOD_NOARG("conntrack_table", rpc_luci2_network_ct_table),
1761                 UBUS_METHOD_NOARG("arp_table",       rpc_luci2_network_arp_table),
1762                 UBUS_METHOD_NOARG("dhcp_leases",     rpc_luci2_network_leases),
1763                 UBUS_METHOD_NOARG("dhcp6_leases",    rpc_luci2_network_leases6),
1764                 UBUS_METHOD_NOARG("routes",          rpc_luci2_network_routes),
1765                 UBUS_METHOD_NOARG("routes6",         rpc_luci2_network_routes6),
1766         };
1767
1768         static struct ubus_object_type luci2_network_type =
1769                 UBUS_OBJECT_TYPE("luci-rpc-luci2-network", luci2_network_methods);
1770
1771         static struct ubus_object network_obj = {
1772                 .name = "luci2.network",
1773                 .type = &luci2_network_type,
1774                 .methods = luci2_network_methods,
1775                 .n_methods = ARRAY_SIZE(luci2_network_methods),
1776         };
1777
1778
1779         static const struct ubus_method luci2_opkg_methods[] = {
1780                 UBUS_METHOD("list",                  rpc_luci2_opkg_list,
1781                                                      rpc_opkg_match_policy),
1782                 UBUS_METHOD("list_installed",        rpc_luci2_opkg_list_installed,
1783                                                      rpc_opkg_match_policy),
1784                 UBUS_METHOD("find",                  rpc_luci2_opkg_find,
1785                                                      rpc_opkg_match_policy),
1786                 UBUS_METHOD("install",               rpc_luci2_opkg_install,
1787                                                      rpc_opkg_package_policy),
1788                 UBUS_METHOD("remove",                rpc_luci2_opkg_remove,
1789                                                      rpc_opkg_package_policy),
1790                 UBUS_METHOD_NOARG("update",          rpc_luci2_opkg_update),
1791                 UBUS_METHOD_NOARG("config_get",      rpc_luci2_opkg_config_get),
1792                 UBUS_METHOD("config_set",            rpc_luci2_opkg_config_set,
1793                                                      rpc_opkg_config_policy)
1794         };
1795
1796         static struct ubus_object_type luci2_opkg_type =
1797                 UBUS_OBJECT_TYPE("luci-rpc-luci2-network", luci2_opkg_methods);
1798
1799         static struct ubus_object opkg_obj = {
1800                 .name = "luci2.opkg",
1801                 .type = &luci2_opkg_type,
1802                 .methods = luci2_opkg_methods,
1803                 .n_methods = ARRAY_SIZE(luci2_opkg_methods),
1804         };
1805
1806         cursor = uci_alloc_context();
1807
1808         if (!cursor)
1809                 return UBUS_STATUS_UNKNOWN_ERROR;
1810
1811         rv |= ubus_add_object(ctx, &system_obj);
1812         rv |= ubus_add_object(ctx, &network_obj);
1813         rv |= ubus_add_object(ctx, &opkg_obj);
1814
1815         return rv;
1816 }