+unsigned int debug_mask = 0;
+const char *main_path = DEFAULT_MAIN_PATH;
+const char *config_path = DEFAULT_CONFIG_PATH;
+const char *resolv_conf = DEFAULT_RESOLV_CONF;
+static char **global_argv;
+
+static struct list_head process_list = LIST_HEAD_INIT(process_list);
+
+#define DEFAULT_LOG_LEVEL L_NOTICE
+
+static int log_level = DEFAULT_LOG_LEVEL;
+static const int log_class[] = {
+ [L_CRIT] = LOG_CRIT,
+ [L_WARNING] = LOG_WARNING,
+ [L_NOTICE] = LOG_NOTICE,
+ [L_INFO] = LOG_INFO,
+ [L_DEBUG] = LOG_DEBUG
+};
+
+#ifdef DUMMY_MODE
+#define use_syslog false
+#else
+static bool use_syslog = true;
+#endif
+
+
+static void
+netifd_delete_process(struct netifd_process *proc)
+{
+ list_del(&proc->list);
+ ustream_free(&proc->log.stream);
+ close(proc->log.fd.fd);
+}
+
+void
+netifd_log_message(int priority, const char *format, ...)
+{
+ va_list vl;
+
+ if (priority > log_level)
+ return;
+
+ va_start(vl, format);
+ if (use_syslog)
+ vsyslog(log_class[priority], format, vl);
+ else
+ vfprintf(stderr, format, vl);
+ va_end(vl);
+}
+
+static void
+netifd_process_log_read_cb(struct ustream *s, int bytes)
+{
+ struct netifd_process *proc;
+ const char *log_prefix;
+ char *data;
+ int len = 0;
+
+ proc = container_of(s, struct netifd_process, log.stream);
+ log_prefix = proc->log_prefix;
+ if (!log_prefix)
+ log_prefix = "process";
+
+ do {
+ char *newline;
+
+ data = ustream_get_read_buf(s, &len);
+ if (!len)
+ break;
+
+ newline = strchr(data, '\n');
+
+ if (proc->log_overflow) {
+ if (newline) {
+ len = newline + 1 - data;
+ proc->log_overflow = false;
+ }
+ } else if (newline) {
+ *newline = 0;
+ len = newline + 1 - data;
+ netifd_log_message(L_NOTICE, "%s (%d): %s\n",
+ log_prefix, proc->uloop.pid, data);
+ } else if (len == s->r.buffer_len) {
+ netifd_log_message(L_NOTICE, "%s (%d): %s [...]\n",
+ log_prefix, proc->uloop.pid, data);
+ proc->log_overflow = true;
+ } else
+ break;
+
+ ustream_consume(s, len);
+ } while (1);
+}
+
+static void
+netifd_process_cb(struct uloop_process *proc, int ret)
+{
+ struct netifd_process *np;
+ np = container_of(proc, struct netifd_process, uloop);
+
+ while (ustream_poll(&np->log.stream));
+ netifd_delete_process(np);
+ return np->cb(np, ret);
+}
+
+int
+netifd_start_process(const char **argv, char **env, struct netifd_process *proc)
+{
+ int pfds[2];
+ int pid;
+
+ netifd_kill_process(proc);
+
+ if (pipe(pfds) < 0)
+ return -1;
+
+ if ((pid = fork()) < 0)
+ goto error;
+
+ if (!pid) {
+ int i;
+
+ if (env) {
+ while (*env) {
+ putenv(*env);
+ env++;
+ }
+ }
+ if (proc->dir_fd >= 0)
+ if (fchdir(proc->dir_fd)) {}
+
+ close(pfds[0]);
+
+ for (i = 0; i <= 2; i++) {
+ if (pfds[1] == i)
+ continue;
+
+ dup2(pfds[1], i);
+ }
+
+ if (pfds[1] > 2)
+ close(pfds[1]);
+
+ execvp(argv[0], (char **) argv);
+ exit(127);
+ }
+
+ if (pid < 0)
+ goto error;
+
+ close(pfds[1]);
+ proc->uloop.cb = netifd_process_cb;
+ proc->uloop.pid = pid;
+ uloop_process_add(&proc->uloop);
+ list_add_tail(&proc->list, &process_list);
+
+ system_fd_set_cloexec(pfds[0]);
+ proc->log.stream.string_data = true;
+ proc->log.stream.notify_read = netifd_process_log_read_cb;
+ ustream_fd_init(&proc->log, pfds[0]);
+
+ return 0;
+
+error:
+ close(pfds[0]);
+ close(pfds[1]);
+ return -1;
+}
+
+void
+netifd_kill_process(struct netifd_process *proc)
+{
+ if (!proc->uloop.pending)
+ return;
+
+ kill(proc->uloop.pid, SIGKILL);
+ uloop_process_delete(&proc->uloop);
+ netifd_delete_process(proc);
+}
+
+static void netifd_do_restart(struct uloop_timeout *timeout)