14 #include "interface.h"
16 unsigned int debug_mask = 0;
17 const char *main_path = DEFAULT_MAIN_PATH;
18 const char *resolv_conf = DEFAULT_RESOLV_CONF;
19 static char **global_argv;
21 static struct list_head process_list = LIST_HEAD_INIT(process_list);
22 static struct list_head fds = LIST_HEAD_INIT(fds);
25 #define use_syslog false
27 static bool use_syslog = true;
32 netifd_delete_process(struct netifd_process *proc)
34 if (proc->uloop.pending)
35 uloop_process_delete(&proc->uloop);
36 list_del(&proc->list);
37 netifd_fd_delete(&proc->log_fd);
41 netifd_log_message(int priority, const char *format, ...)
47 vsyslog(priority, format, vl);
49 vfprintf(stderr, format, vl);
54 netifd_process_log_cb(struct uloop_fd *fd, unsigned int events)
56 struct netifd_process *proc;
57 const char *log_prefix;
59 int maxlen, len, read_len;
61 proc = container_of(fd, struct netifd_process, log_uloop);
64 proc->log_buf = malloc(LOG_BUF_SIZE + 1);
66 buf = proc->log_buf + proc->log_buf_ofs;
67 maxlen = LOG_BUF_SIZE - proc->log_buf_ofs;
69 log_prefix = proc->log_prefix;
71 log_prefix = "process";
74 read_len = len = read(fd->fd, buf, maxlen);
81 proc->log_buf_ofs += len;
85 while ((cur = memchr(cur, '\n', len))) {
88 if (!proc->log_overflow)
89 netifd_log_message(LOG_NOTICE, "%s (%d): %s\n",
90 log_prefix, proc->uloop.pid, buf);
92 proc->log_overflow = false;
99 if (buf > proc->log_buf && len > 0)
100 memmove(buf, proc->log_buf, len);
102 if (len == LOG_BUF_SIZE) {
103 if (!proc->log_overflow) {
104 proc->log_buf[LOG_BUF_SIZE] = 0;
105 netifd_log_message(LOG_NOTICE, "%s (%d): %s [...]\n",
106 log_prefix, proc->uloop.pid, proc->log_buf);
107 proc->log_overflow = true;
111 proc->log_buf_ofs = len;
113 if (read_len == maxlen)
118 netifd_process_cb(struct uloop_process *proc, int ret)
120 struct netifd_process *np;
121 np = container_of(proc, struct netifd_process, uloop);
122 netifd_process_log_cb(&np->log_uloop, 0);
123 netifd_delete_process(np);
124 return np->cb(np, ret);
128 netifd_start_process(const char **argv, char **env, struct netifd_process *proc)
130 struct netifd_fd *fd;
134 netifd_kill_process(proc);
139 if ((pid = fork()) < 0)
149 if (proc->dir_fd >= 0)
150 fchdir(proc->dir_fd);
152 /* close all non-essential fds */
153 list_for_each_entry(fd, &fds, list) {
154 if (fd->proc == proc)
166 execvp(argv[0], (char **) argv);
174 proc->uloop.cb = netifd_process_cb;
175 proc->uloop.pid = pid;
176 uloop_process_add(&proc->uloop);
177 list_add_tail(&proc->list, &process_list);
179 proc->log_uloop.fd = proc->log_fd.fd = pfds[0];
180 proc->log_uloop.cb = netifd_process_log_cb;
181 netifd_fd_add(&proc->log_fd);
182 uloop_fd_add(&proc->log_uloop, ULOOP_EDGE_TRIGGER | ULOOP_READ);
193 netifd_kill_process(struct netifd_process *proc)
195 if (!proc->uloop.pending)
198 kill(proc->uloop.pid, SIGTERM);
199 netifd_delete_process(proc);
203 netifd_fd_add(struct netifd_fd *fd)
205 list_add_tail(&fd->list, &fds);
209 netifd_fd_delete(struct netifd_fd *fd)
214 static void netifd_do_restart(struct uloop_timeout *timeout)
216 execvp(global_argv[0], global_argv);
219 static void netifd_do_reload(struct uloop_timeout *timeout)
221 config_init_interfaces(NULL);
224 static struct uloop_timeout main_timer;
226 void netifd_reload(void)
228 main_timer.cb = netifd_do_reload;
229 uloop_timeout_set(&main_timer, 100);
232 void netifd_restart(void)
234 main_timer.cb = netifd_do_restart;
235 interface_set_down(NULL);
236 uloop_timeout_set(&main_timer, 1000);
239 static int usage(const char *progname)
241 fprintf(stderr, "Usage: %s [options]\n"
243 " -d <mask>: Mask for debug messages\n"
244 " -s <path>: Path to the ubus socket\n"
245 " -p <path>: Path to netifd addons (default: %s)\n"
246 " -h <path>: Path to the hotplug script\n"
247 " -r <path>: Path to resolv.conf\n"
248 " -S: Use stderr instead of syslog for log messages\n"
249 " (default: "DEFAULT_HOTPLUG_PATH")\n"
250 "\n", progname, main_path);
256 netifd_handle_signal(int signo)
262 netifd_setup_signals(void)
266 memset(&s, 0, sizeof(s));
267 s.sa_handler = netifd_handle_signal;
269 sigaction(SIGINT, &s, NULL);
270 sigaction(SIGTERM, &s, NULL);
271 sigaction(SIGUSR1, &s, NULL);
272 sigaction(SIGUSR2, &s, NULL);
274 s.sa_handler = SIG_IGN;
275 sigaction(SIGPIPE, &s, NULL);
279 netifd_kill_processes(void)
281 struct netifd_process *proc, *tmp;
283 list_for_each_entry_safe(proc, tmp, &process_list, list)
284 netifd_kill_process(proc);
287 int main(int argc, char **argv)
289 const char *socket = NULL;
294 while ((ch = getopt(argc, argv, "d:s:p:h:r:S")) != -1) {
297 debug_mask = strtoul(optarg, NULL, 0);
306 hotplug_cmd_path = optarg;
309 resolv_conf = optarg;
317 return usage(argv[0]);
322 openlog("netifd", 0, LOG_DAEMON);
324 netifd_setup_signals();
325 if (netifd_ubus_init(socket) < 0) {
326 fprintf(stderr, "Failed to connect to ubus\n");
331 fprintf(stderr, "Failed to initialize system control\n");
335 config_init_interfaces(NULL);
338 netifd_kill_processes();