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>
16 #include <sys/ioctl.h>
17 #include <sys/types.h>
23 #include <libubox/uloop.h>
28 #define HOSTNAME_PATH "/proc/sys/kernel/hostname"
30 static struct blob_buf b;
31 static char *board_name;
32 static char *board_model;
34 static int system_info(struct ubus_context *ctx, struct ubus_object *obj,
35 struct ubus_request_data *req, const char *method,
36 struct blob_attr *msg)
42 if (board_name && board_model) {
43 blobmsg_add_string(&b, "boardname", board_name);
44 blobmsg_add_string(&b, "boardmodel", board_model);
47 blobmsg_add_string(&b, "hostname", uts.nodename);
48 blobmsg_add_string(&b, "machine", uts.machine);
49 blobmsg_add_string(&b, "kernel", uts.release);
51 if (!clock_gettime(CLOCK_MONOTONIC, &ts))
52 blobmsg_add_u32(&b, "uptime", ts.tv_sec);
53 ubus_send_reply(ctx, req, b.head);
64 static const struct blobmsg_policy watchdog_policy[__WDT_MAX] = {
65 [WDT_FREQUENCY] = { .name = "frequency", .type = BLOBMSG_TYPE_INT32 },
66 [WDT_TIMEOUT] = { .name = "timeout", .type = BLOBMSG_TYPE_INT32 },
69 static int watchdog_set(struct ubus_context *ctx, struct ubus_object *obj,
70 struct ubus_request_data *req, const char *method,
71 struct blob_attr *msg)
73 struct blob_attr *tb[__WDT_MAX];
76 return UBUS_STATUS_INVALID_ARGUMENT;
78 blobmsg_parse(watchdog_policy, __WDT_MAX, tb, blob_data(msg), blob_len(msg));
79 if (tb[WDT_FREQUENCY]) {
80 unsigned int timeout = watchdog_timeout(0);
81 unsigned int freq = blobmsg_get_u32(tb[WDT_FREQUENCY]);
84 if (freq > timeout / 2)
86 watchdog_frequency(freq);
90 if (tb[WDT_TIMEOUT]) {
91 unsigned int timeout = blobmsg_get_u32(tb[WDT_TIMEOUT]);
92 unsigned int frequency = watchdog_frequency(0);
94 if (timeout <= frequency)
95 timeout = frequency * 2;
96 watchdog_timeout(timeout);
100 blobmsg_add_string(&b, "status", (watchdog_fd() >= 0) ? ("running") : ("offline"));
101 blobmsg_add_u32(&b, "timeout", watchdog_timeout(0));
102 blobmsg_add_u32(&b, "frequency", watchdog_frequency(0));
103 ubus_send_reply(ctx, req, b.head);
108 static const struct ubus_method system_methods[] = {
109 UBUS_METHOD_NOARG("info", system_info),
110 UBUS_METHOD("watchdog", watchdog_set, watchdog_policy),
113 static struct ubus_object_type system_object_type =
114 UBUS_OBJECT_TYPE("system", system_methods);
116 static struct ubus_object system_object = {
118 .type = &system_object_type,
119 .methods = system_methods,
120 .n_methods = ARRAY_SIZE(system_methods),
123 static char* load_file_content(const char *file)
128 fd = open(file, O_RDONLY);
131 r = read(fd, buf, sizeof(buf) - 1);
135 if (buf[r - 1] == '\n')
143 void ubus_init_system(struct ubus_context *ctx)
148 board_model = load_file_content("/tmp/sysinfo/model");
150 board_name = load_file_content("/tmp/sysinfo/board_name");
151 ret = ubus_add_object(ctx, &system_object);
153 ERROR("Failed to add object: %s\n", ubus_strerror(ret));