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/resource.h>
22 char *ubus_socket = NULL;
23 static struct ubus_context *ctx;
24 static struct uloop_process ubus_proc;
25 static bool ubus_connected = false;
27 static void procd_ubus_connection_lost(struct ubus_context *old_ctx);
29 static void ubus_proc_cb(struct uloop_process *proc, int ret)
31 /* nothing to do here */
34 static void procd_restart_ubus(void)
36 char *argv[] = { "ubusd", NULL, ubus_socket, NULL };
38 if (ubus_proc.pending) {
39 ERROR("Killing existing ubus instance, pid=%d\n", (int) ubus_proc.pid);
40 kill(ubus_proc.pid, SIGKILL);
41 uloop_process_delete(&ubus_proc);
47 ubus_proc.pid = fork();
49 setpriority(PRIO_PROCESS, 0, -20);
50 execvp(argv[0], argv);
54 if (ubus_proc.pid <= 0) {
55 ERROR("Failed to start new ubus instance\n");
59 DEBUG(1, "Launched new ubus instance, pid=%d\n", (int) ubus_proc.pid);
60 uloop_process_add(&ubus_proc);
63 static void procd_ubus_try_connect(void)
66 ubus_connected = !ubus_reconnect(ctx, ubus_socket);
70 ctx = ubus_connect(ubus_socket);
72 DEBUG(2, "Connection to ubus failed\n");
76 ctx->connection_lost = procd_ubus_connection_lost;
77 ubus_connected = true;
78 ubus_init_service(ctx);
81 ubus_init_system(ctx);
85 static void procd_ubus_connection_lost(struct ubus_context *old_ctx)
87 procd_ubus_try_connect();
88 while (!ubus_connected) {
91 procd_ubus_try_connect();
94 DEBUG(1, "Connected to ubus, id=%08x\n", ctx->local_id);
98 void procd_connect_ubus(void)
100 ubus_proc.cb = ubus_proc_cb;
101 procd_ubus_connection_lost(NULL);