2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <sys/utsname.h>
17 #include <sys/sysinfo.h>
19 #include <sys/ioctl.h>
20 #include <sys/types.h>
21 #include <sys/reboot.h>
28 #include <json-c/json_tokener.h>
29 #include <libubox/blobmsg_json.h>
30 #include <libubox/uloop.h>
33 #include "sysupgrade.h"
36 static struct blob_buf b;
38 static struct ubus_context *_ctx;
40 static int system_board(struct ubus_context *ctx, struct ubus_object *obj,
41 struct ubus_request_data *req, const char *method,
42 struct blob_attr *msg)
46 char *key, *val, *next;
47 struct utsname utsname;
52 if (uname(&utsname) >= 0)
54 blobmsg_add_string(&b, "kernel", utsname.release);
55 blobmsg_add_string(&b, "hostname", utsname.nodename);
58 if ((f = fopen("/proc/cpuinfo", "r")) != NULL)
60 while(fgets(line, sizeof(line), f))
62 key = strtok(line, "\t:");
63 val = strtok(NULL, "\t\n");
68 if (!strcasecmp(key, "system type") ||
69 !strcasecmp(key, "processor") ||
70 !strcasecmp(key, "cpu") ||
71 !strcasecmp(key, "model name"))
73 strtoul(val + 2, &key, 0);
75 if (key == (val + 2) || *key != 0)
77 blobmsg_add_string(&b, "system", val + 2);
86 if ((f = fopen("/tmp/sysinfo/model", "r")) != NULL ||
87 (f = fopen("/proc/device-tree/model", "r")) != NULL)
89 if (fgets(line, sizeof(line), f))
91 val = strtok(line, "\t\n");
94 blobmsg_add_string(&b, "model", val);
99 else if ((f = fopen("/proc/cpuinfo", "r")) != NULL)
101 while(fgets(line, sizeof(line), f))
103 key = strtok(line, "\t:");
104 val = strtok(NULL, "\t\n");
109 if (!strcasecmp(key, "machine") ||
110 !strcasecmp(key, "hardware"))
112 blobmsg_add_string(&b, "model", val + 2);
120 if ((f = fopen("/tmp/sysinfo/board_name", "r")) != NULL)
122 if (fgets(line, sizeof(line), f))
124 val = strtok(line, "\t\n");
127 blobmsg_add_string(&b, "board_name", val);
132 else if ((f = fopen("/proc/device-tree/compatible", "r")) != NULL)
134 if (fgets(line, sizeof(line), f))
136 val = strtok(line, "\t\n");
141 while ((next = strchr(next, ',')) != NULL)
147 blobmsg_add_string(&b, "board_name", val);
154 if ((f = fopen("/etc/openwrt_release", "r")) != NULL)
156 c = blobmsg_open_table(&b, "release");
158 while (fgets(line, sizeof(line), f))
164 val = strchr(line, '=');
170 if (!strcasecmp(key, "DISTRIB_ID"))
171 key = "distribution";
172 else if (!strcasecmp(key, "DISTRIB_RELEASE"))
174 else if (!strcasecmp(key, "DISTRIB_REVISION"))
176 else if (!strcasecmp(key, "DISTRIB_CODENAME"))
178 else if (!strcasecmp(key, "DISTRIB_TARGET"))
180 else if (!strcasecmp(key, "DISTRIB_DESCRIPTION"))
185 dest = blobmsg_alloc_string_buffer(&b, key, strlen(val));
187 ERROR("Failed to allocate blob.\n");
191 while (val && (ch = *(val++)) != 0) {
195 next = strchr(val, ch);
204 dest += strlen(dest);
207 *(dest++) = *(val++);
211 blobmsg_add_string_buffer(&b);
214 blobmsg_close_array(&b, c);
219 ubus_send_reply(ctx, req, b.head);
221 return UBUS_STATUS_OK;
224 static int system_info(struct ubus_context *ctx, struct ubus_object *obj,
225 struct ubus_request_data *req, const char *method,
226 struct blob_attr *msg)
235 return UBUS_STATUS_UNKNOWN_ERROR;
240 if (!(tm = localtime(&now)))
241 return UBUS_STATUS_UNKNOWN_ERROR;
243 blob_buf_init(&b, 0);
245 blobmsg_add_u32(&b, "localtime", now + tm->tm_gmtoff);
248 blobmsg_add_u32(&b, "uptime", info.uptime);
250 c = blobmsg_open_array(&b, "load");
251 blobmsg_add_u32(&b, NULL, info.loads[0]);
252 blobmsg_add_u32(&b, NULL, info.loads[1]);
253 blobmsg_add_u32(&b, NULL, info.loads[2]);
254 blobmsg_close_array(&b, c);
256 c = blobmsg_open_table(&b, "memory");
257 blobmsg_add_u64(&b, "total", info.mem_unit * info.totalram);
258 blobmsg_add_u64(&b, "free", info.mem_unit * info.freeram);
259 blobmsg_add_u64(&b, "shared", info.mem_unit * info.sharedram);
260 blobmsg_add_u64(&b, "buffered", info.mem_unit * info.bufferram);
261 blobmsg_close_table(&b, c);
263 c = blobmsg_open_table(&b, "swap");
264 blobmsg_add_u64(&b, "total", info.mem_unit * info.totalswap);
265 blobmsg_add_u64(&b, "free", info.mem_unit * info.freeswap);
266 blobmsg_close_table(&b, c);
269 ubus_send_reply(ctx, req, b.head);
271 return UBUS_STATUS_OK;
274 static int system_reboot(struct ubus_context *ctx, struct ubus_object *obj,
275 struct ubus_request_data *req, const char *method,
276 struct blob_attr *msg)
278 procd_shutdown(RB_AUTOBOOT);
290 static const struct blobmsg_policy watchdog_policy[__WDT_MAX] = {
291 [WDT_FREQUENCY] = { .name = "frequency", .type = BLOBMSG_TYPE_INT32 },
292 [WDT_TIMEOUT] = { .name = "timeout", .type = BLOBMSG_TYPE_INT32 },
293 [WDT_MAGICCLOSE] = { .name = "magicclose", .type = BLOBMSG_TYPE_BOOL },
294 [WDT_STOP] = { .name = "stop", .type = BLOBMSG_TYPE_BOOL },
297 static int watchdog_set(struct ubus_context *ctx, struct ubus_object *obj,
298 struct ubus_request_data *req, const char *method,
299 struct blob_attr *msg)
301 struct blob_attr *tb[__WDT_MAX];
305 return UBUS_STATUS_INVALID_ARGUMENT;
307 blobmsg_parse(watchdog_policy, __WDT_MAX, tb, blob_data(msg), blob_len(msg));
308 if (tb[WDT_FREQUENCY]) {
309 unsigned int timeout = tb[WDT_TIMEOUT] ? blobmsg_get_u32(tb[WDT_TIMEOUT]) :
311 unsigned int freq = blobmsg_get_u32(tb[WDT_FREQUENCY]);
314 if (freq > timeout / 2)
316 watchdog_frequency(freq);
320 if (tb[WDT_TIMEOUT]) {
321 unsigned int timeout = blobmsg_get_u32(tb[WDT_TIMEOUT]);
322 unsigned int frequency = watchdog_frequency(0);
324 if (timeout <= frequency)
325 timeout = frequency * 2;
326 watchdog_timeout(timeout);
329 if (tb[WDT_MAGICCLOSE])
330 watchdog_set_magicclose(blobmsg_get_bool(tb[WDT_MAGICCLOSE]));
333 watchdog_set_stopped(blobmsg_get_bool(tb[WDT_STOP]));
335 if (watchdog_fd() == NULL)
337 else if (watchdog_get_stopped())
342 blob_buf_init(&b, 0);
343 blobmsg_add_string(&b, "status", status);
344 blobmsg_add_u32(&b, "timeout", watchdog_timeout(0));
345 blobmsg_add_u32(&b, "frequency", watchdog_frequency(0));
346 blobmsg_add_u8(&b, "magicclose", watchdog_get_magicclose());
347 ubus_send_reply(ctx, req, b.head);
358 static const struct blobmsg_policy signal_policy[__SIGNAL_MAX] = {
359 [SIGNAL_PID] = { .name = "pid", .type = BLOBMSG_TYPE_INT32 },
360 [SIGNAL_NUM] = { .name = "signum", .type = BLOBMSG_TYPE_INT32 },
363 static int proc_signal(struct ubus_context *ctx, struct ubus_object *obj,
364 struct ubus_request_data *req, const char *method,
365 struct blob_attr *msg)
367 struct blob_attr *tb[__SIGNAL_MAX];
370 return UBUS_STATUS_INVALID_ARGUMENT;
372 blobmsg_parse(signal_policy, __SIGNAL_MAX, tb, blob_data(msg), blob_len(msg));
373 if (!tb[SIGNAL_PID || !tb[SIGNAL_NUM]])
374 return UBUS_STATUS_INVALID_ARGUMENT;
376 kill(blobmsg_get_u32(tb[SIGNAL_PID]), blobmsg_get_u32(tb[SIGNAL_NUM]));
382 * validate_firmware_image_call - perform validation & store result in global b
384 * @file: firmware image path
386 static int validate_firmware_image_call(const char *file)
388 const char *path = "/usr/libexec/validate_firmware_image";
404 /* Set stdin & stderr to /dev/null */
411 /* Set stdout to the shared pipe */
416 execl(path, path, file, NULL);
422 tok = json_tokener_new();
429 blob_buf_init(&b, 0);
430 while ((len = read(fds[0], buf, sizeof(buf)))) {
431 jsobj = json_tokener_parse_ex(tok, buf, len);
433 if (json_tokener_get_error(tok) == json_tokener_success)
435 else if (json_tokener_get_error(tok) == json_tokener_continue)
438 fprintf(stderr, "Failed to parse JSON: %d\n",
439 json_tokener_get_error(tok));
447 if (json_object_get_type(jsobj) == json_type_object) {
448 blobmsg_add_object(&b, jsobj);
452 json_object_put(jsobj);
455 json_tokener_free(tok);
461 VALIDATE_FIRMWARE_IMAGE_PATH,
462 __VALIDATE_FIRMWARE_IMAGE_MAX,
465 static const struct blobmsg_policy validate_firmware_image_policy[__VALIDATE_FIRMWARE_IMAGE_MAX] = {
466 [VALIDATE_FIRMWARE_IMAGE_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
469 static int validate_firmware_image(struct ubus_context *ctx,
470 struct ubus_object *obj,
471 struct ubus_request_data *req,
472 const char *method, struct blob_attr *msg)
474 struct blob_attr *tb[__VALIDATE_FIRMWARE_IMAGE_MAX];
477 return UBUS_STATUS_INVALID_ARGUMENT;
479 blobmsg_parse(validate_firmware_image_policy, __VALIDATE_FIRMWARE_IMAGE_MAX, tb, blob_data(msg), blob_len(msg));
480 if (!tb[VALIDATE_FIRMWARE_IMAGE_PATH])
481 return UBUS_STATUS_INVALID_ARGUMENT;
483 if (validate_firmware_image_call(blobmsg_get_string(tb[VALIDATE_FIRMWARE_IMAGE_PATH])))
484 return UBUS_STATUS_UNKNOWN_ERROR;
486 ubus_send_reply(ctx, req, b.head);
488 return UBUS_STATUS_OK;
499 static const struct blobmsg_policy sysupgrade_policy[__SYSUPGRADE_MAX] = {
500 [SYSUPGRADE_PATH] = { .name = "path", .type = BLOBMSG_TYPE_STRING },
501 [SYSUPGRADE_PREFIX] = { .name = "prefix", .type = BLOBMSG_TYPE_STRING },
502 [SYSUPGRADE_COMMAND] = { .name = "command", .type = BLOBMSG_TYPE_STRING },
503 [SYSUPGRADE_OPTIONS] = { .name = "options", .type = BLOBMSG_TYPE_TABLE },
506 static int sysupgrade(struct ubus_context *ctx, struct ubus_object *obj,
507 struct ubus_request_data *req, const char *method,
508 struct blob_attr *msg)
510 struct blob_attr *tb[__SYSUPGRADE_MAX];
513 return UBUS_STATUS_INVALID_ARGUMENT;
515 blobmsg_parse(sysupgrade_policy, __SYSUPGRADE_MAX, tb, blob_data(msg), blob_len(msg));
516 if (!tb[SYSUPGRADE_PATH] || !tb[SYSUPGRADE_PREFIX])
517 return UBUS_STATUS_INVALID_ARGUMENT;
519 sysupgrade_exec_upgraded(blobmsg_get_string(tb[SYSUPGRADE_PREFIX]),
520 blobmsg_get_string(tb[SYSUPGRADE_PATH]),
521 tb[SYSUPGRADE_COMMAND] ? blobmsg_get_string(tb[SYSUPGRADE_COMMAND]) : NULL,
522 tb[SYSUPGRADE_OPTIONS]);
524 /* sysupgrade_exec_upgraded() will never return unless something has gone wrong */
525 return UBUS_STATUS_UNKNOWN_ERROR;
529 procd_subscribe_cb(struct ubus_context *ctx, struct ubus_object *obj)
531 notify = obj->has_subscribers;
535 static const struct ubus_method system_methods[] = {
536 UBUS_METHOD_NOARG("board", system_board),
537 UBUS_METHOD_NOARG("info", system_info),
538 UBUS_METHOD_NOARG("reboot", system_reboot),
539 UBUS_METHOD("watchdog", watchdog_set, watchdog_policy),
540 UBUS_METHOD("signal", proc_signal, signal_policy),
541 UBUS_METHOD("validate_firmware_image", validate_firmware_image, validate_firmware_image_policy),
542 UBUS_METHOD("sysupgrade", sysupgrade, sysupgrade_policy),
545 static struct ubus_object_type system_object_type =
546 UBUS_OBJECT_TYPE("system", system_methods);
548 static struct ubus_object system_object = {
550 .type = &system_object_type,
551 .methods = system_methods,
552 .n_methods = ARRAY_SIZE(system_methods),
553 .subscribe_cb = procd_subscribe_cb,
557 procd_bcast_event(char *event, struct blob_attr *msg)
564 ret = ubus_notify(_ctx, &system_object, event, msg, -1);
566 fprintf(stderr, "Failed to notify log: %s\n", ubus_strerror(ret));
569 void ubus_init_system(struct ubus_context *ctx)
574 ret = ubus_add_object(ctx, &system_object);
576 ERROR("Failed to add object: %s\n", ubus_strerror(ret));