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luci2: fix incorrect buffer length in luci2.opkg config_set call
[project/rpcd.git] / 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_UPGRADE_KEEP,
114 __RPC_UPGRADE_MAX
115 };
116
117 static const struct blobmsg_policy rpc_upgrade_policy[__RPC_UPGRADE_MAX] = {
118 [RPC_UPGRADE_KEEP] = { .name = "keep", .type = BLOBMSG_TYPE_BOOL },
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 static int
950 rpc_luci2_upgrade_test(struct ubus_context *ctx, struct ubus_object *obj,
951 struct ubus_request_data *req, const char *method,
952 struct blob_attr *msg)
953 {
954 const char *cmd[4] = { "sysupgrade", "--test", "/tmp/firmware.bin", NULL };
955 return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
956 }
957
958 static int
959 rpc_luci2_upgrade_start(struct ubus_context *ctx, struct ubus_object *obj,
960 struct ubus_request_data *req, const char *method,
961 struct blob_attr *msg)
962 {
963 return 0;
964 }
965
966 static int
967 rpc_luci2_upgrade_clean(struct ubus_context *ctx, struct ubus_object *obj,
968 struct ubus_request_data *req, const char *method,
969 struct blob_attr *msg)
970 {
971 if (unlink("/tmp/firmware.bin"))
972 return rpc_errno_status();
973
974 return 0;
975 }
976
977 static int
978 rpc_luci2_backup_restore(struct ubus_context *ctx, struct ubus_object *obj,
979 struct ubus_request_data *req, const char *method,
980 struct blob_attr *msg)
981 {
982 const char *cmd[4] = { "sysupgrade", "--restore-backup",
983 "/tmp/backup.tar.gz", NULL };
984
985 return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
986 }
987
988 static int
989 rpc_luci2_backup_clean(struct ubus_context *ctx, struct ubus_object *obj,
990 struct ubus_request_data *req, const char *method,
991 struct blob_attr *msg)
992 {
993 if (unlink("/tmp/backup.tar.gz"))
994 return rpc_errno_status();
995
996 return 0;
997 }
998
999 static int
1000 rpc_luci2_backup_config_get(struct ubus_context *ctx, struct ubus_object *obj,
1001 struct ubus_request_data *req, const char *method,
1002 struct blob_attr *msg)
1003 {
1004 FILE *f;
1005 char conf[2048] = { 0 };
1006
1007 if (!(f = fopen("/etc/sysupgrade.conf", "r")))
1008 return rpc_errno_status();
1009
1010 fread(conf, sizeof(conf) - 1, 1, f);
1011 fclose(f);
1012
1013 blob_buf_init(&buf, 0);
1014 blobmsg_add_string(&buf, "config", conf);
1015
1016 ubus_send_reply(ctx, req, buf.head);
1017 return 0;
1018 }
1019
1020 static int
1021 rpc_luci2_backup_config_set(struct ubus_context *ctx, struct ubus_object *obj,
1022 struct ubus_request_data *req, const char *method,
1023 struct blob_attr *msg)
1024 {
1025 FILE *f;
1026 struct blob_attr *tb[__RPC_D_MAX];
1027
1028 blobmsg_parse(rpc_data_policy, __RPC_D_MAX, tb,
1029 blob_data(msg), blob_len(msg));
1030
1031 if (!tb[RPC_D_DATA])
1032 return UBUS_STATUS_INVALID_ARGUMENT;
1033
1034 if (blobmsg_data_len(tb[RPC_D_DATA]) >= 2048)
1035 return UBUS_STATUS_NOT_SUPPORTED;
1036
1037 if (!(f = fopen("/etc/sysupgrade.conf", "w")))
1038 return rpc_errno_status();
1039
1040 fwrite(blobmsg_data(tb[RPC_D_DATA]),
1041 blobmsg_data_len(tb[RPC_D_DATA]) - 1, 1, f);
1042
1043 fclose(f);
1044 return 0;
1045 }
1046
1047 struct backup_state {
1048 bool open;
1049 void *array;
1050 };
1051
1052 static int
1053 backup_parse_list(struct blob_buf *blob, char *buf, int len, void *priv)
1054 {
1055 struct backup_state *s = priv;
1056 char *nl = strchr(buf, '\n');
1057
1058 if (!nl)
1059 return 0;
1060
1061 if (!s->open)
1062 {
1063 s->open = true;
1064 s->array = blobmsg_open_array(blob, "files");
1065 }
1066
1067 *nl = 0;
1068 blobmsg_add_string(blob, NULL, buf);
1069
1070 return (nl - buf + 1);
1071 }
1072
1073 static void
1074 backup_finish_list(struct blob_buf *blob, int status, void *priv)
1075 {
1076 struct backup_state *s = priv;
1077
1078 if (!s->open)
1079 return;
1080
1081 blobmsg_close_array(blob, s->array);
1082 }
1083
1084 static int
1085 rpc_luci2_backup_list(struct ubus_context *ctx, struct ubus_object *obj,
1086 struct ubus_request_data *req, const char *method,
1087 struct blob_attr *msg)
1088 {
1089 struct backup_state *state = NULL;
1090 const char *cmd[3] = { "sysupgrade", "--list-backup", NULL };
1091
1092 state = malloc(sizeof(*state));
1093
1094 if (!state)
1095 return UBUS_STATUS_UNKNOWN_ERROR;
1096
1097 memset(state, 0, sizeof(*state));
1098
1099 return rpc_exec(cmd, backup_parse_list, NULL, backup_finish_list,
1100 state, ctx, req);
1101 }
1102
1103 static int
1104 rpc_luci2_reset_test(struct ubus_context *ctx, struct ubus_object *obj,
1105 struct ubus_request_data *req, const char *method,
1106 struct blob_attr *msg)
1107 {
1108 FILE *mtd;
1109 struct stat s;
1110 char line[64] = { 0 };
1111 bool supported = false;
1112
1113 if (!stat("/sbin/mtd", &s) && (s.st_mode & S_IXUSR))
1114 {
1115 if ((mtd = fopen("/proc/mtd", "r")) != NULL)
1116 {
1117 while (fgets(line, sizeof(line) - 1, mtd))
1118 {
1119 if (strstr(line, "\"rootfs_data\""))
1120 {
1121 supported = true;
1122 break;
1123 }
1124 }
1125
1126 fclose(mtd);
1127 }
1128 }
1129
1130 blob_buf_init(&buf, 0);
1131 blobmsg_add_u8(&buf, "supported", supported);
1132
1133 ubus_send_reply(ctx, req, buf.head);
1134
1135 return 0;
1136 }
1137
1138 static int
1139 rpc_luci2_reset_start(struct ubus_context *ctx, struct ubus_object *obj,
1140 struct ubus_request_data *req, const char *method,
1141 struct blob_attr *msg)
1142 {
1143 switch (fork())
1144 {
1145 case -1:
1146 return rpc_errno_status();
1147
1148 case 0:
1149 uloop_done();
1150
1151 chdir("/");
1152
1153 close(0);
1154 close(1);
1155 close(2);
1156
1157 sleep(1);
1158
1159 execl("/sbin/mtd", "/sbin/mtd", "-r", "erase", "rootfs_data", NULL);
1160
1161 return rpc_errno_status();
1162
1163 default:
1164 return 0;
1165 }
1166 }
1167
1168 static int
1169 rpc_luci2_reboot(struct ubus_context *ctx, struct ubus_object *obj,
1170 struct ubus_request_data *req, const char *method,
1171 struct blob_attr *msg)
1172 {
1173 switch (fork())
1174 {
1175 case -1:
1176 return rpc_errno_status();
1177
1178 case 0:
1179 chdir("/");
1180
1181 close(0);
1182 close(1);
1183 close(2);
1184
1185 sleep(1);
1186
1187 execl("/sbin/reboot", "/sbin/reboot", NULL);
1188
1189 return rpc_errno_status();
1190
1191 default:
1192 return 0;
1193 }
1194 }
1195
1196
1197 static FILE *
1198 dnsmasq_leasefile(void)
1199 {
1200 FILE *leases = NULL;
1201 struct uci_package *p;
1202 struct uci_element *e;
1203 struct uci_section *s;
1204 struct uci_ptr ptr = {
1205 .package = "dhcp",
1206 .section = NULL,
1207 .option = "leasefile"
1208 };
1209
1210 uci_load(cursor, ptr.package, &p);
1211
1212 if (!p)
1213 return NULL;
1214
1215 uci_foreach_element(&p->sections, e)
1216 {
1217 s = uci_to_section(e);
1218
1219 if (strcmp(s->type, "dnsmasq"))
1220 continue;
1221
1222 ptr.section = e->name;
1223 uci_lookup_ptr(cursor, &ptr, NULL, true);
1224 break;
1225 }
1226
1227 if (ptr.o && ptr.o->type == UCI_TYPE_STRING)
1228 leases = fopen(ptr.o->v.string, "r");
1229
1230 uci_unload(cursor, p);
1231
1232 return leases;
1233 }
1234
1235 static int
1236 rpc_luci2_network_leases(struct ubus_context *ctx, struct ubus_object *obj,
1237 struct ubus_request_data *req, const char *method,
1238 struct blob_attr *msg)
1239 {
1240 FILE *leases;
1241 void *c, *d;
1242 char line[128];
1243 char *ts, *mac, *addr, *name;
1244 time_t now = time(NULL);
1245
1246 blob_buf_init(&buf, 0);
1247 c = blobmsg_open_array(&buf, "leases");
1248
1249 leases = dnsmasq_leasefile();
1250
1251 if (!leases)
1252 goto out;
1253
1254 while (fgets(line, sizeof(line) - 1, leases))
1255 {
1256 ts = strtok(line, " \t");
1257 mac = strtok(NULL, " \t");
1258 addr = strtok(NULL, " \t");
1259 name = strtok(NULL, " \t");
1260
1261 if (!ts || !mac || !addr || !name)
1262 continue;
1263
1264 if (strchr(addr, ':'))
1265 continue;
1266
1267 d = blobmsg_open_table(&buf, NULL);
1268
1269 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
1270 blobmsg_add_string(&buf, "macaddr", mac);
1271 blobmsg_add_string(&buf, "ipaddr", addr);
1272
1273 if (strcmp(name, "*"))
1274 blobmsg_add_string(&buf, "hostname", name);
1275
1276 blobmsg_close_table(&buf, d);
1277 }
1278
1279 fclose(leases);
1280
1281 out:
1282 blobmsg_close_array(&buf, c);
1283 ubus_send_reply(ctx, req, buf.head);
1284
1285 return 0;
1286 }
1287
1288 static int
1289 rpc_luci2_network_leases6(struct ubus_context *ctx, struct ubus_object *obj,
1290 struct ubus_request_data *req, const char *method,
1291 struct blob_attr *msg)
1292 {
1293 FILE *leases;
1294 void *c, *d;
1295 char line[128];
1296 char *ts, *mac, *addr, *name, *duid;
1297 time_t now = time(NULL);
1298
1299 blob_buf_init(&buf, 0);
1300 c = blobmsg_open_array(&buf, "leases");
1301
1302 leases = fopen("/tmp/hosts/6relayd", "r");
1303
1304 if (leases)
1305 {
1306 while (fgets(line, sizeof(line) - 1, leases))
1307 {
1308 if (strncmp(line, "# ", 2))
1309 continue;
1310
1311 strtok(line + 2, " \t"); /* iface */
1312
1313 duid = strtok(NULL, " \t");
1314
1315 strtok(NULL, " \t"); /* iaid */
1316
1317 name = strtok(NULL, " \t");
1318 ts = strtok(NULL, " \t");
1319
1320 strtok(NULL, " \t"); /* id */
1321 strtok(NULL, " \t"); /* length */
1322
1323 addr = strtok(NULL, " \t\n");
1324
1325 if (!addr)
1326 continue;
1327
1328 d = blobmsg_open_table(&buf, NULL);
1329
1330 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
1331 blobmsg_add_string(&buf, "duid", duid);
1332 blobmsg_add_string(&buf, "ip6addr", addr);
1333
1334 if (strcmp(name, "-"))
1335 blobmsg_add_string(&buf, "hostname", name);
1336
1337 blobmsg_close_array(&buf, d);
1338 }
1339
1340 fclose(leases);
1341 }
1342 else
1343 {
1344 leases = dnsmasq_leasefile();
1345
1346 if (!leases)
1347 goto out;
1348
1349 while (fgets(line, sizeof(line) - 1, leases))
1350 {
1351 ts = strtok(line, " \t");
1352 mac = strtok(NULL, " \t");
1353 addr = strtok(NULL, " \t");
1354 name = strtok(NULL, " \t");
1355 duid = strtok(NULL, " \t\n");
1356
1357 if (!ts || !mac || !addr || !duid)
1358 continue;
1359
1360 if (!strchr(addr, ':'))
1361 continue;
1362
1363 d = blobmsg_open_table(&buf, NULL);
1364
1365 blobmsg_add_u32(&buf, "expires", atoi(ts) - now);
1366 blobmsg_add_string(&buf, "macaddr", mac);
1367 blobmsg_add_string(&buf, "ip6addr", addr);
1368
1369 if (strcmp(name, "*"))
1370 blobmsg_add_string(&buf, "hostname", name);
1371
1372 if (strcmp(duid, "*"))
1373 blobmsg_add_string(&buf, "duid", name);
1374
1375 blobmsg_close_table(&buf, d);
1376 }
1377
1378 fclose(leases);
1379 }
1380
1381 out:
1382 blobmsg_close_array(&buf, c);
1383 ubus_send_reply(ctx, req, buf.head);
1384
1385 return 0;
1386 }
1387
1388 static int
1389 rpc_luci2_network_ct_count(struct ubus_context *ctx, struct ubus_object *obj,
1390 struct ubus_request_data *req, const char *method,
1391 struct blob_attr *msg)
1392 {
1393 FILE *f;
1394 char line[128];
1395
1396 blob_buf_init(&buf, 0);
1397
1398 if ((f = fopen("/proc/sys/net/netfilter/nf_conntrack_count", "r")) != NULL)
1399 {
1400 if (fgets(line, sizeof(line) - 1, f))
1401 blobmsg_add_u32(&buf, "count", atoi(line));
1402
1403 fclose(f);
1404 }
1405
1406 if ((f = fopen("/proc/sys/net/netfilter/nf_conntrack_max", "r")) != NULL)
1407 {
1408 if (fgets(line, sizeof(line) - 1, f))
1409 blobmsg_add_u32(&buf, "limit", atoi(line));
1410
1411 fclose(f);
1412 }
1413
1414 ubus_send_reply(ctx, req, buf.head);
1415
1416 return 0;
1417 }
1418
1419 static int
1420 rpc_luci2_network_ct_table(struct ubus_context *ctx, struct ubus_object *obj,
1421 struct ubus_request_data *req, const char *method,
1422 struct blob_attr *msg)
1423 {
1424 FILE *f;
1425 int i;
1426 void *c, *d;
1427 char *p, line[512];
1428 bool seen[6];
1429
1430 blob_buf_init(&buf, 0);
1431 c = blobmsg_open_array(&buf, "entries");
1432
1433 if ((f = fopen("/proc/net/nf_conntrack", "r")) != NULL)
1434 {
1435 while (fgets(line, sizeof(line) - 1, f))
1436 {
1437 d = blobmsg_open_table(&buf, NULL);
1438 memset(seen, 0, sizeof(seen));
1439
1440 for (i = 0, p = strtok(line, " "); p; i++, p = strtok(NULL, " "))
1441 {
1442 if (i == 0)
1443 blobmsg_add_u8(&buf, "ipv6", !strcmp(p, "ipv6"));
1444 else if (i == 3)
1445 blobmsg_add_u32(&buf, "protocol", atoi(p));
1446 else if (i == 4)
1447 blobmsg_add_u32(&buf, "expires", atoi(p));
1448 else if (i >= 5)
1449 {
1450 if (*p == '[')
1451 continue;
1452
1453 if (!seen[0] && !strncmp(p, "src=", 4))
1454 {
1455 blobmsg_add_string(&buf, "src", p + 4);
1456 seen[0] = true;
1457 }
1458 else if (!seen[1] && !strncmp(p, "dst=", 4))
1459 {
1460 blobmsg_add_string(&buf, "dest", p + 4);
1461 seen[1] = true;
1462 }
1463 else if (!seen[2] && !strncmp(p, "sport=", 6))
1464 {
1465 blobmsg_add_u32(&buf, "sport", atoi(p + 6));
1466 seen[2] = true;
1467 }
1468 else if (!seen[3] && !strncmp(p, "dport=", 6))
1469 {
1470 blobmsg_add_u32(&buf, "dport", atoi(p + 6));
1471 seen[3] = true;
1472 }
1473 else if (!strncmp(p, "packets=", 8))
1474 {
1475 blobmsg_add_u32(&buf,
1476 seen[4] ? "tx_packets" : "rx_packets",
1477 atoi(p + 8));
1478 seen[4] = true;
1479 }
1480 else if (!strncmp(p, "bytes=", 6))
1481 {
1482 blobmsg_add_u32(&buf,
1483 seen[5] ? "tx_bytes" : "rx_bytes",
1484 atoi(p + 6));
1485 seen[5] = true;
1486 }
1487 }
1488 }
1489
1490 blobmsg_close_table(&buf, d);
1491 }
1492
1493 fclose(f);
1494 }
1495
1496 blobmsg_close_array(&buf, c);
1497 ubus_send_reply(ctx, req, buf.head);
1498
1499 return 0;
1500 }
1501
1502 static int
1503 rpc_luci2_network_arp_table(struct ubus_context *ctx, struct ubus_object *obj,
1504 struct ubus_request_data *req, const char *method,
1505 struct blob_attr *msg)
1506 {
1507 FILE *f;
1508 void *c, *d;
1509 char *addr, *mac, *dev, line[128];
1510
1511 blob_buf_init(&buf, 0);
1512 c = blobmsg_open_array(&buf, "entries");
1513
1514 if ((f = fopen("/proc/net/arp", "r")) != NULL)
1515 {
1516 /* skip header line */
1517 fgets(line, sizeof(line) - 1, f);
1518
1519 while (fgets(line, sizeof(line) - 1, f))
1520 {
1521 addr = strtok(line, " \t");
1522
1523 strtok(NULL, " \t"); /* HW type */
1524 strtok(NULL, " \t"); /* Flags */
1525
1526 mac = strtok(NULL, " \t");
1527
1528 strtok(NULL, " \t"); /* Mask */
1529
1530 dev = strtok(NULL, " \t\n");
1531
1532 if (!dev)
1533 continue;
1534
1535 d = blobmsg_open_table(&buf, NULL);
1536 blobmsg_add_string(&buf, "ipaddr", addr);
1537 blobmsg_add_string(&buf, "macaddr", mac);
1538 blobmsg_add_string(&buf, "device", dev);
1539 blobmsg_close_table(&buf, d);
1540 }
1541
1542 fclose(f);
1543 }
1544
1545 blobmsg_close_array(&buf, c);
1546 ubus_send_reply(ctx, req, buf.head);
1547
1548 return 0;
1549 }
1550
1551 static void
1552 put_hexaddr(const char *name, const char *s, const char *m)
1553 {
1554 int bits;
1555 struct in_addr a;
1556 char as[sizeof("255.255.255.255/32\0")];
1557
1558 a.s_addr = strtoul(s, NULL, 16);
1559 inet_ntop(AF_INET, &a, as, sizeof(as));
1560
1561 if (m)
1562 {
1563 for (a.s_addr = ntohl(strtoul(m, NULL, 16)), bits = 0;
1564 a.s_addr & 0x80000000;
1565 a.s_addr <<= 1)
1566 bits++;
1567
1568 sprintf(as + strlen(as), "/%u", bits);
1569 }
1570
1571 blobmsg_add_string(&buf, name, as);
1572 }
1573
1574 static int
1575 rpc_luci2_network_routes(struct ubus_context *ctx, struct ubus_object *obj,
1576 struct ubus_request_data *req, const char *method,
1577 struct blob_attr *msg)
1578 {
1579 FILE *routes;
1580 void *c, *d;
1581 char *dst, *dmask, *next, *metric, *device;
1582 char line[256];
1583 unsigned int n;
1584
1585 if (!(routes = fopen("/proc/net/route", "r")))
1586 return rpc_errno_status();
1587
1588 blob_buf_init(&buf, 0);
1589 c = blobmsg_open_array(&buf, "routes");
1590
1591 /* skip header line */
1592 fgets(line, sizeof(line) - 1, routes);
1593
1594 while (fgets(line, sizeof(line) - 1, routes))
1595 {
1596 device = strtok(line, "\t ");
1597 dst = strtok(NULL, "\t ");
1598 next = strtok(NULL, "\t ");
1599
1600 strtok(NULL, "\t "); /* flags */
1601 strtok(NULL, "\t "); /* refcount */
1602 strtok(NULL, "\t "); /* usecount */
1603
1604 metric = strtok(NULL, "\t ");
1605 dmask = strtok(NULL, "\t ");
1606
1607 if (!dmask)
1608 continue;
1609
1610 d = blobmsg_open_table(&buf, NULL);
1611
1612 put_hexaddr("target", dst, dmask);
1613 put_hexaddr("nexthop", next, NULL);
1614
1615 n = strtoul(metric, NULL, 10);
1616 blobmsg_add_u32(&buf, "metric", n);
1617
1618 blobmsg_add_string(&buf, "device", device);
1619
1620 blobmsg_close_table(&buf, d);
1621 }
1622
1623 blobmsg_close_array(&buf, c);
1624 fclose(routes);
1625
1626 ubus_send_reply(ctx, req, buf.head);
1627 return 0;
1628 }
1629
1630 static void
1631 put_hex6addr(const char *name, const char *s, const char *m)
1632 {
1633 int i;
1634 struct in6_addr a;
1635 char as[INET6_ADDRSTRLEN + sizeof("/128")];
1636
1637 #define hex(x) \
1638 (((x) <= '9') ? ((x) - '0') : \
1639 (((x) <= 'F') ? ((x) - 'A' + 10) : \
1640 ((x) - 'a' + 10)))
1641
1642 for (i = 0; i < 16; i++, s += 2)
1643 a.s6_addr[i] = (16 * hex(*s)) + hex(*(s+1));
1644
1645 inet_ntop(AF_INET6, &a, as, sizeof(as));
1646
1647 if (m)
1648 sprintf(as + strlen(as), "/%lu", strtoul(m, NULL, 16));
1649
1650 blobmsg_add_string(&buf, name, as);
1651 }
1652
1653 static int
1654 rpc_luci2_network_routes6(struct ubus_context *ctx, struct ubus_object *obj,
1655 struct ubus_request_data *req, const char *method,
1656 struct blob_attr *msg)
1657 {
1658 FILE *routes;
1659 void *c, *d;
1660 char *src, *smask, *dst, *dmask, *next, *metric, *flags, *device;
1661 char line[256];
1662 unsigned int n;
1663
1664 if (!(routes = fopen("/proc/net/ipv6_route", "r")))
1665 return rpc_errno_status();
1666
1667 blob_buf_init(&buf, 0);
1668 c = blobmsg_open_array(&buf, "routes");
1669
1670 while (fgets(line, sizeof(line) - 1, routes))
1671 {
1672 dst = strtok(line, " ");
1673 dmask = strtok(NULL, " ");
1674 src = strtok(NULL, " ");
1675 smask = strtok(NULL, " ");
1676 next = strtok(NULL, " ");
1677 metric = strtok(NULL, " ");
1678
1679 strtok(NULL, " "); /* refcount */
1680 strtok(NULL, " "); /* usecount */
1681
1682 flags = strtok(NULL, " ");
1683 device = strtok(NULL, " \n");
1684
1685 if (!device)
1686 continue;
1687
1688 n = strtoul(flags, NULL, 16);
1689
1690 if (!(n & 1))
1691 continue;
1692
1693 d = blobmsg_open_table(&buf, NULL);
1694
1695 put_hex6addr("target", dst, dmask);
1696 put_hex6addr("source", src, smask);
1697 put_hex6addr("nexthop", next, NULL);
1698
1699 n = strtoul(metric, NULL, 16);
1700 blobmsg_add_u32(&buf, "metric", n);
1701
1702 blobmsg_add_string(&buf, "device", device);
1703
1704 blobmsg_close_table(&buf, d);
1705 }
1706
1707 blobmsg_close_array(&buf, c);
1708 fclose(routes);
1709
1710 ubus_send_reply(ctx, req, buf.head);
1711 return 0;
1712 }
1713
1714
1715 struct opkg_state {
1716 int cur_offset;
1717 int cur_count;
1718 int req_offset;
1719 int req_count;
1720 int total;
1721 bool open;
1722 void *array;
1723 };
1724
1725 static int
1726 opkg_parse_list(struct blob_buf *blob, char *buf, int len, void *priv)
1727 {
1728 struct opkg_state *s = priv;
1729
1730 char *ptr, *last;
1731 char *nl = strchr(buf, '\n');
1732 char *name = NULL, *vers = NULL, *desc = NULL;
1733 void *c;
1734
1735 if (!nl)
1736 return 0;
1737
1738 s->total++;
1739
1740 if (s->cur_offset++ < s->req_offset)
1741 goto skip;
1742
1743 if (s->cur_count++ >= s->req_count)
1744 goto skip;
1745
1746 if (!s->open)
1747 {
1748 s->open = true;
1749 s->array = blobmsg_open_array(blob, "packages");
1750 }
1751
1752 for (ptr = buf, last = buf, *nl = 0; ptr <= nl; ptr++)
1753 {
1754 if (!*ptr || (*ptr == ' ' && *(ptr+1) == '-' && *(ptr+2) == ' '))
1755 {
1756 if (!name)
1757 {
1758 name = last;
1759 last = ptr + 3;
1760 *ptr = 0;
1761 ptr += 2;
1762 }
1763 else if (!vers)
1764 {
1765 vers = last;
1766 desc = *ptr ? (ptr + 3) : NULL;
1767 *ptr = 0;
1768 break;
1769 }
1770 }
1771 }
1772
1773 if (name && vers)
1774 {
1775 c = blobmsg_open_array(blob, NULL);
1776
1777 blobmsg_add_string(blob, NULL, name);
1778 blobmsg_add_string(blob, NULL, vers);
1779
1780 if (desc && *desc)
1781 blobmsg_add_string(blob, NULL, desc);
1782
1783 blobmsg_close_array(blob, c);
1784 }
1785
1786 skip:
1787 return (nl - buf + 1);
1788 }
1789
1790 static void
1791 opkg_finish_list(struct blob_buf *blob, int status, void *priv)
1792 {
1793 struct opkg_state *s = priv;
1794
1795 if (!s->open)
1796 return;
1797
1798 blobmsg_close_array(blob, s->array);
1799 blobmsg_add_u32(blob, "total", s->total);
1800 }
1801
1802 static int
1803 opkg_exec_list(const char *action, struct blob_attr *msg,
1804 struct ubus_context *ctx, struct ubus_request_data *req)
1805 {
1806 struct opkg_state *state = NULL;
1807 struct blob_attr *tb[__RPC_OM_MAX];
1808 const char *cmd[5] = { "opkg", action, "-nocase", NULL, NULL };
1809
1810 blobmsg_parse(rpc_opkg_match_policy, __RPC_OM_MAX, tb,
1811 blob_data(msg), blob_len(msg));
1812
1813 state = malloc(sizeof(*state));
1814
1815 if (!state)
1816 return UBUS_STATUS_UNKNOWN_ERROR;
1817
1818 memset(state, 0, sizeof(*state));
1819
1820 if (tb[RPC_OM_PATTERN])
1821 cmd[3] = blobmsg_data(tb[RPC_OM_PATTERN]);
1822
1823 if (tb[RPC_OM_LIMIT])
1824 state->req_count = blobmsg_get_u32(tb[RPC_OM_LIMIT]);
1825
1826 if (tb[RPC_OM_OFFSET])
1827 state->req_offset = blobmsg_get_u32(tb[RPC_OM_OFFSET]);
1828
1829 if (state->req_offset < 0)
1830 state->req_offset = 0;
1831
1832 if (state->req_count <= 0 || state->req_count > 100)
1833 state->req_count = 100;
1834
1835 return rpc_exec(cmd, opkg_parse_list, NULL, opkg_finish_list,
1836 state, ctx, req);
1837 }
1838
1839
1840 static int
1841 rpc_luci2_opkg_list(struct ubus_context *ctx, struct ubus_object *obj,
1842 struct ubus_request_data *req, const char *method,
1843 struct blob_attr *msg)
1844 {
1845 return opkg_exec_list("list", msg, ctx, req);
1846 }
1847
1848 static int
1849 rpc_luci2_opkg_list_installed(struct ubus_context *ctx, struct ubus_object *obj,
1850 struct ubus_request_data *req, const char *method,
1851 struct blob_attr *msg)
1852 {
1853 return opkg_exec_list("list-installed", msg, ctx, req);
1854 }
1855
1856 static int
1857 rpc_luci2_opkg_find(struct ubus_context *ctx, struct ubus_object *obj,
1858 struct ubus_request_data *req, const char *method,
1859 struct blob_attr *msg)
1860 {
1861 return opkg_exec_list("find", msg, ctx, req);
1862 }
1863
1864 static int
1865 rpc_luci2_opkg_update(struct ubus_context *ctx, struct ubus_object *obj,
1866 struct ubus_request_data *req, const char *method,
1867 struct blob_attr *msg)
1868 {
1869 const char *cmd[3] = { "opkg", "update", NULL };
1870 return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
1871 }
1872
1873 static int
1874 rpc_luci2_opkg_install(struct ubus_context *ctx, struct ubus_object *obj,
1875 struct ubus_request_data *req, const char *method,
1876 struct blob_attr *msg)
1877 {
1878 struct blob_attr *tb[__RPC_OP_MAX];
1879 const char *cmd[5] = { "opkg", "--force-overwrite",
1880 "install", NULL, NULL };
1881
1882 blobmsg_parse(rpc_opkg_package_policy, __RPC_OP_MAX, tb,
1883 blob_data(msg), blob_len(msg));
1884
1885 if (!tb[RPC_OP_PACKAGE])
1886 return UBUS_STATUS_INVALID_ARGUMENT;
1887
1888 cmd[3] = blobmsg_data(tb[RPC_OP_PACKAGE]);
1889
1890 return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
1891 }
1892
1893 static int
1894 rpc_luci2_opkg_remove(struct ubus_context *ctx, struct ubus_object *obj,
1895 struct ubus_request_data *req, const char *method,
1896 struct blob_attr *msg)
1897 {
1898 struct blob_attr *tb[__RPC_OP_MAX];
1899 const char *cmd[5] = { "opkg", "--force-removal-of-dependent-packages",
1900 "remove", NULL, NULL };
1901
1902 blobmsg_parse(rpc_opkg_package_policy, __RPC_OP_MAX, tb,
1903 blob_data(msg), blob_len(msg));
1904
1905 if (!tb[RPC_OP_PACKAGE])
1906 return UBUS_STATUS_INVALID_ARGUMENT;
1907
1908 cmd[3] = blobmsg_data(tb[RPC_OP_PACKAGE]);
1909
1910 return rpc_exec(cmd, NULL, NULL, NULL, NULL, ctx, req);
1911 }
1912
1913 static int
1914 rpc_luci2_opkg_config_get(struct ubus_context *ctx, struct ubus_object *obj,
1915 struct ubus_request_data *req, const char *method,
1916 struct blob_attr *msg)
1917 {
1918 FILE *f;
1919 char conf[2048] = { 0 };
1920
1921 if (!(f = fopen("/etc/opkg.conf", "r")))
1922 return rpc_errno_status();
1923
1924 fread(conf, sizeof(conf) - 1, 1, f);
1925 fclose(f);
1926
1927 blob_buf_init(&buf, 0);
1928 blobmsg_add_string(&buf, "config", conf);
1929
1930 ubus_send_reply(ctx, req, buf.head);
1931 return 0;
1932 }
1933
1934 static int
1935 rpc_luci2_opkg_config_set(struct ubus_context *ctx, struct ubus_object *obj,
1936 struct ubus_request_data *req, const char *method,
1937 struct blob_attr *msg)
1938 {
1939 FILE *f;
1940 struct blob_attr *tb[__RPC_D_MAX];
1941
1942 blobmsg_parse(rpc_data_policy, __RPC_D_MAX, tb,
1943 blob_data(msg), blob_len(msg));
1944
1945 if (!tb[RPC_D_DATA])
1946 return UBUS_STATUS_INVALID_ARGUMENT;
1947
1948 if (blobmsg_data_len(tb[RPC_D_DATA]) >= 2048)
1949 return UBUS_STATUS_NOT_SUPPORTED;
1950
1951 if (!(f = fopen("/etc/opkg.conf", "w")))
1952 return rpc_errno_status();
1953
1954 fwrite(blobmsg_data(tb[RPC_D_DATA]),
1955 blobmsg_data_len(tb[RPC_D_DATA]) - 1, 1, f);
1956
1957 fclose(f);
1958 return 0;
1959 }
1960
1961
1962 int rpc_luci2_api_init(struct ubus_context *ctx)
1963 {
1964 int rv = 0;
1965
1966 static const struct ubus_method luci2_system_methods[] = {
1967 UBUS_METHOD_NOARG("syslog", rpc_luci2_system_log),
1968 UBUS_METHOD_NOARG("dmesg", rpc_luci2_system_dmesg),
1969 UBUS_METHOD_NOARG("diskfree", rpc_luci2_system_diskfree),
1970 UBUS_METHOD_NOARG("process_list", rpc_luci2_process_list),
1971 UBUS_METHOD("process_signal", rpc_luci2_process_signal,
1972 rpc_signal_policy),
1973 UBUS_METHOD_NOARG("init_list", rpc_luci2_init_list),
1974 UBUS_METHOD("init_action", rpc_luci2_init_action,
1975 rpc_init_policy),
1976 UBUS_METHOD_NOARG("rclocal_get", rpc_luci2_rclocal_get),
1977 UBUS_METHOD("rclocal_set", rpc_luci2_rclocal_set,
1978 rpc_data_policy),
1979 UBUS_METHOD_NOARG("crontab_get", rpc_luci2_crontab_get),
1980 UBUS_METHOD("crontab_set", rpc_luci2_crontab_set,
1981 rpc_data_policy),
1982 UBUS_METHOD_NOARG("sshkeys_get", rpc_luci2_sshkeys_get),
1983 UBUS_METHOD("sshkeys_set", rpc_luci2_sshkeys_set,
1984 rpc_sshkey_policy),
1985 UBUS_METHOD("password_set", rpc_luci2_password_set,
1986 rpc_password_policy),
1987 UBUS_METHOD_NOARG("led_list", rpc_luci2_led_list),
1988 UBUS_METHOD_NOARG("usb_list", rpc_luci2_usb_list),
1989 UBUS_METHOD_NOARG("upgrade_test", rpc_luci2_upgrade_test),
1990 UBUS_METHOD("upgrade_start", rpc_luci2_upgrade_start,
1991 rpc_upgrade_policy),
1992 UBUS_METHOD_NOARG("upgrade_clean", rpc_luci2_upgrade_clean),
1993 UBUS_METHOD_NOARG("backup_restore", rpc_luci2_backup_restore),
1994 UBUS_METHOD_NOARG("backup_clean", rpc_luci2_backup_clean),
1995 UBUS_METHOD_NOARG("backup_config_get", rpc_luci2_backup_config_get),
1996 UBUS_METHOD("backup_config_set", rpc_luci2_backup_config_set,
1997 rpc_data_policy),
1998 UBUS_METHOD_NOARG("backup_list", rpc_luci2_backup_list),
1999 UBUS_METHOD_NOARG("reset_test", rpc_luci2_reset_test),
2000 UBUS_METHOD_NOARG("reset_start", rpc_luci2_reset_start),
2001 UBUS_METHOD_NOARG("reboot", rpc_luci2_reboot)
2002 };
2003
2004 static struct ubus_object_type luci2_system_type =
2005 UBUS_OBJECT_TYPE("luci-rpc-luci2-system", luci2_system_methods);
2006
2007 static struct ubus_object system_obj = {
2008 .name = "luci2.system",
2009 .type = &luci2_system_type,
2010 .methods = luci2_system_methods,
2011 .n_methods = ARRAY_SIZE(luci2_system_methods),
2012 };
2013
2014
2015 static const struct ubus_method luci2_network_methods[] = {
2016 UBUS_METHOD_NOARG("conntrack_count", rpc_luci2_network_ct_count),
2017 UBUS_METHOD_NOARG("conntrack_table", rpc_luci2_network_ct_table),
2018 UBUS_METHOD_NOARG("arp_table", rpc_luci2_network_arp_table),
2019 UBUS_METHOD_NOARG("dhcp_leases", rpc_luci2_network_leases),
2020 UBUS_METHOD_NOARG("dhcp6_leases", rpc_luci2_network_leases6),
2021 UBUS_METHOD_NOARG("routes", rpc_luci2_network_routes),
2022 UBUS_METHOD_NOARG("routes6", rpc_luci2_network_routes6),
2023 };
2024
2025 static struct ubus_object_type luci2_network_type =
2026 UBUS_OBJECT_TYPE("luci-rpc-luci2-network", luci2_network_methods);
2027
2028 static struct ubus_object network_obj = {
2029 .name = "luci2.network",
2030 .type = &luci2_network_type,
2031 .methods = luci2_network_methods,
2032 .n_methods = ARRAY_SIZE(luci2_network_methods),
2033 };
2034
2035
2036 static const struct ubus_method luci2_opkg_methods[] = {
2037 UBUS_METHOD("list", rpc_luci2_opkg_list,
2038 rpc_opkg_match_policy),
2039 UBUS_METHOD("list_installed", rpc_luci2_opkg_list_installed,
2040 rpc_opkg_match_policy),
2041 UBUS_METHOD("find", rpc_luci2_opkg_find,
2042 rpc_opkg_match_policy),
2043 UBUS_METHOD("install", rpc_luci2_opkg_install,
2044 rpc_opkg_package_policy),
2045 UBUS_METHOD("remove", rpc_luci2_opkg_remove,
2046 rpc_opkg_package_policy),
2047 UBUS_METHOD_NOARG("update", rpc_luci2_opkg_update),
2048 UBUS_METHOD_NOARG("config_get", rpc_luci2_opkg_config_get),
2049 UBUS_METHOD("config_set", rpc_luci2_opkg_config_set,
2050 rpc_data_policy)
2051 };
2052
2053 static struct ubus_object_type luci2_opkg_type =
2054 UBUS_OBJECT_TYPE("luci-rpc-luci2-network", luci2_opkg_methods);
2055
2056 static struct ubus_object opkg_obj = {
2057 .name = "luci2.opkg",
2058 .type = &luci2_opkg_type,
2059 .methods = luci2_opkg_methods,
2060 .n_methods = ARRAY_SIZE(luci2_opkg_methods),
2061 };
2062
2063 cursor = uci_alloc_context();
2064
2065 if (!cursor)
2066 return UBUS_STATUS_UNKNOWN_ERROR;
2067
2068 rv |= ubus_add_object(ctx, &system_obj);
2069 rv |= ubus_add_object(ctx, &network_obj);
2070 rv |= ubus_add_object(ctx, &opkg_obj);
2071
2072 return rv;
2073 }
OpenWrt ubus RPC daemon