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>
29 #define HOSTNAME_PATH "/proc/sys/kernel/hostname"
31 static struct blob_buf b;
32 static char *board_name;
33 static char *board_model;
35 static int system_info(struct ubus_context *ctx, struct ubus_object *obj,
36 struct ubus_request_data *req, const char *method,
37 struct blob_attr *msg)
43 if (board_name && board_model) {
44 blobmsg_add_string(&b, "boardname", board_name);
45 blobmsg_add_string(&b, "boardmodel", board_model);
48 blobmsg_add_string(&b, "hostname", uts.nodename);
49 blobmsg_add_string(&b, "machine", uts.machine);
50 blobmsg_add_string(&b, "kernel", uts.release);
52 if (!clock_gettime(CLOCK_MONOTONIC, &ts))
53 blobmsg_add_u32(&b, "uptime", ts.tv_sec);
54 ubus_send_reply(ctx, req, b.head);
59 static int system_upgrade(struct ubus_context *ctx, struct ubus_object *obj,
60 struct ubus_request_data *req, const char *method,
61 struct blob_attr *msg)
63 procd_reconnect_ubus(0);
77 static const struct blobmsg_policy watchdog_policy[__WDT_MAX] = {
78 [WDT_FREQUENCY] = { .name = "frequency", .type = BLOBMSG_TYPE_INT32 },
79 [WDT_TIMEOUT] = { .name = "timeout", .type = BLOBMSG_TYPE_INT32 },
80 [WDT_STOP] = { .name = "stop", .type = BLOBMSG_TYPE_BOOL },
83 static int watchdog_set(struct ubus_context *ctx, struct ubus_object *obj,
84 struct ubus_request_data *req, const char *method,
85 struct blob_attr *msg)
87 struct blob_attr *tb[__WDT_MAX];
91 return UBUS_STATUS_INVALID_ARGUMENT;
93 blobmsg_parse(watchdog_policy, __WDT_MAX, tb, blob_data(msg), blob_len(msg));
94 if (tb[WDT_FREQUENCY]) {
95 unsigned int timeout = watchdog_timeout(0);
96 unsigned int freq = blobmsg_get_u32(tb[WDT_FREQUENCY]);
99 if (freq > timeout / 2)
101 watchdog_frequency(freq);
105 if (tb[WDT_TIMEOUT]) {
106 unsigned int timeout = blobmsg_get_u32(tb[WDT_TIMEOUT]);
107 unsigned int frequency = watchdog_frequency(0);
109 if (timeout <= frequency)
110 timeout = frequency * 2;
111 watchdog_timeout(timeout);
115 watchdog_set_stopped(blobmsg_get_bool(tb[WDT_STOP]));
117 if (watchdog_fd() < 0)
119 else if (watchdog_get_stopped())
124 blob_buf_init(&b, 0);
125 blobmsg_add_string(&b, "status", status);
126 blobmsg_add_u32(&b, "timeout", watchdog_timeout(0));
127 blobmsg_add_u32(&b, "frequency", watchdog_frequency(0));
128 ubus_send_reply(ctx, req, b.head);
133 static const struct ubus_method system_methods[] = {
134 UBUS_METHOD_NOARG("info", system_info),
135 UBUS_METHOD_NOARG("upgrade", system_upgrade),
136 UBUS_METHOD("watchdog", watchdog_set, watchdog_policy),
139 static struct ubus_object_type system_object_type =
140 UBUS_OBJECT_TYPE("system", system_methods);
142 static struct ubus_object system_object = {
144 .type = &system_object_type,
145 .methods = system_methods,
146 .n_methods = ARRAY_SIZE(system_methods),
149 static char* load_file_content(const char *file)
154 fd = open(file, O_RDONLY);
157 r = read(fd, buf, sizeof(buf) - 1);
161 if (buf[r - 1] == '\n')
169 void ubus_init_system(struct ubus_context *ctx)
174 board_model = load_file_content("/tmp/sysinfo/model");
176 board_name = load_file_content("/tmp/sysinfo/board_name");
177 ret = ubus_add_object(ctx, &system_object);
179 ERROR("Failed to add object: %s\n", ubus_strerror(ret));