12 #include "interface.h"
14 unsigned int debug_mask = 0;
15 const char *main_path = DEFAULT_MAIN_PATH;
16 const char *resolv_conf = DEFAULT_RESOLV_CONF;
17 static char **global_argv;
19 static struct list_head process_list = LIST_HEAD_INIT(process_list);
20 static struct list_head fds = LIST_HEAD_INIT(fds);
23 netifd_delete_process(struct netifd_process *proc)
25 if (proc->uloop.pending)
26 uloop_process_delete(&proc->uloop);
27 list_del(&proc->list);
28 netifd_fd_delete(&proc->log_fd);
32 netifd_process_log_cb(struct uloop_fd *fd, unsigned int events)
34 struct netifd_process *proc;
35 const char *log_prefix;
37 int maxlen, len, read_len;
39 proc = container_of(fd, struct netifd_process, log_uloop);
42 proc->log_buf = malloc(LOG_BUF_SIZE + 1);
44 buf = proc->log_buf + proc->log_buf_ofs;
45 maxlen = LOG_BUF_SIZE - proc->log_buf_ofs;
47 log_prefix = proc->log_prefix;
49 log_prefix = "process";
52 read_len = len = read(fd->fd, buf, maxlen);
59 proc->log_buf_ofs += len;
63 while ((cur = memchr(cur, '\n', len))) {
66 if (!proc->log_overflow)
67 fprintf(stderr, "%s (%d): %s\n", log_prefix, proc->uloop.pid, buf);
69 proc->log_overflow = false;
76 if (buf > proc->log_buf && len > 0)
77 memmove(buf, proc->log_buf, len);
79 if (len == LOG_BUF_SIZE) {
80 if (!proc->log_overflow) {
81 proc->log_buf[LOG_BUF_SIZE] = 0;
82 fprintf(stderr, "%s (%d): %s [...]\n", log_prefix, proc->uloop.pid, proc->log_buf);
83 proc->log_overflow = true;
87 proc->log_buf_ofs = len;
89 if (read_len == maxlen)
94 netifd_process_cb(struct uloop_process *proc, int ret)
96 struct netifd_process *np;
97 np = container_of(proc, struct netifd_process, uloop);
98 netifd_process_log_cb(&np->log_uloop, 0);
99 netifd_delete_process(np);
100 return np->cb(np, ret);
104 netifd_start_process(const char **argv, char **env, struct netifd_process *proc)
106 struct netifd_fd *fd;
110 netifd_kill_process(proc);
115 if ((pid = fork()) < 0)
125 if (proc->dir_fd >= 0)
126 fchdir(proc->dir_fd);
128 /* close all non-essential fds */
129 list_for_each_entry(fd, &fds, list) {
130 if (fd->proc == proc)
142 execvp(argv[0], (char **) argv);
150 proc->uloop.cb = netifd_process_cb;
151 proc->uloop.pid = pid;
152 uloop_process_add(&proc->uloop);
153 list_add_tail(&proc->list, &process_list);
155 proc->log_uloop.fd = proc->log_fd.fd = pfds[0];
156 proc->log_uloop.cb = netifd_process_log_cb;
157 netifd_fd_add(&proc->log_fd);
158 uloop_fd_add(&proc->log_uloop, ULOOP_EDGE_TRIGGER | ULOOP_READ);
169 netifd_kill_process(struct netifd_process *proc)
171 if (!proc->uloop.pending)
174 kill(proc->uloop.pid, SIGTERM);
175 netifd_delete_process(proc);
179 netifd_fd_add(struct netifd_fd *fd)
181 list_add_tail(&fd->list, &fds);
185 netifd_fd_delete(struct netifd_fd *fd)
190 static void netifd_do_restart(struct uloop_timeout *timeout)
192 execvp(global_argv[0], global_argv);
195 static void netifd_do_reload(struct uloop_timeout *timeout)
197 config_init_interfaces(NULL);
200 static struct uloop_timeout main_timer;
202 void netifd_reload(void)
204 main_timer.cb = netifd_do_reload;
205 uloop_timeout_set(&main_timer, 100);
208 void netifd_restart(void)
210 main_timer.cb = netifd_do_restart;
211 interface_set_down(NULL);
212 uloop_timeout_set(&main_timer, 1000);
215 static int usage(const char *progname)
217 fprintf(stderr, "Usage: %s [options]\n"
219 " -d <mask>: Mask for debug messages\n"
220 " -s <path>: Path to the ubus socket\n"
221 " -p <path>: Path to netifd addons (default: %s)\n"
222 " -h <path>: Path to the hotplug script\n"
223 " -r <path>: Path to resolv.conf\n"
224 " (default: "DEFAULT_HOTPLUG_PATH")\n"
225 "\n", progname, main_path);
231 netifd_handle_signal(int signo)
237 netifd_setup_signals(void)
241 memset(&s, 0, sizeof(s));
242 s.sa_handler = netifd_handle_signal;
244 sigaction(SIGINT, &s, NULL);
245 sigaction(SIGTERM, &s, NULL);
246 sigaction(SIGUSR1, &s, NULL);
247 sigaction(SIGUSR2, &s, NULL);
249 s.sa_handler = SIG_IGN;
250 sigaction(SIGPIPE, &s, NULL);
254 netifd_kill_processes(void)
256 struct netifd_process *proc, *tmp;
258 list_for_each_entry_safe(proc, tmp, &process_list, list)
259 netifd_kill_process(proc);
262 int main(int argc, char **argv)
264 const char *socket = NULL;
269 while ((ch = getopt(argc, argv, "d:s:p:h:r:")) != -1) {
272 debug_mask = strtoul(optarg, NULL, 0);
281 hotplug_cmd_path = optarg;
284 resolv_conf = optarg;
287 return usage(argv[0]);
291 netifd_setup_signals();
292 if (netifd_ubus_init(socket) < 0) {
293 fprintf(stderr, "Failed to connect to ubus\n");
298 fprintf(stderr, "Failed to initialize system control\n");
302 config_init_interfaces(NULL);
305 netifd_kill_processes();