+static void talloc_dump(struct tevent_context *ev,
+ struct tevent_signal *se,
+ int signum,
+ int count,
+ void *siginfo,
+ void *_oserver)
+{
+ struct oserver *oserver = _oserver;
+ FILE *f;
+
+ /* Fork off a child for the report, so we aren't stopped. */
+ if (fork() == 0) {
+ f = fopen("/var/run/oserver/talloc.dump", "w");
+ if (f) {
+ talloc_report_full(oserver, f);
+ fclose(f);
+ }
+ _exit(0);
+ }
+}
+
+static void dump(struct tevent_context *ev,
+ struct tevent_signal *se,
+ int signum,
+ int count,
+ void *siginfo,
+ void *_oserver)
+{
+ struct oserver *oserver = _oserver;
+ char *str;
+ int fd;
+
+ str = cdump_bundle(ev, cdump_struct_oserver, oserver);
+ fd = open(oserver->dumpfile, O_CREAT|O_TRUNC|O_WRONLY, 0600);
+ write(fd, str, strlen(str));
+ close(fd);
+ talloc_free(str);
+}
+
+static bool load_file(struct oserver *oserver, const char *file)
+{
+ char *str;
+
+ if (!file)
+ return false;
+
+ str = grab_file(oserver, file, NULL);
+ if (!str)
+ return false;
+
+ if (!cdump_unbundle(oserver, cdump_struct_oserver, oserver, str)) {
+ talloc_free(str);
+ return false;
+ }
+ talloc_free(str);
+ return true;
+}
+
+static bool complete_server(struct tevent_context *ev,
+ struct oserver *oserver, const char *dumpfile)
+{
+ /* Re-set this even if restored from file, in case it changed. */
+ oserver->dumpfile = dumpfile;
+ if (oserver->dumpfile)
+ tevent_add_signal(ev, oserver, SIGHUP, SA_RESTART,
+ dump, oserver);
+
+ /* Don't kill us if client dies. */
+ signal(SIGPIPE, SIG_IGN);
+
+ /* Show talloc tree on SIGUSR1. */
+ tevent_add_signal(ev, oserver, SIGUSR1, SA_RESTART,
+ talloc_dump, oserver);
+
+ oserver->fde = tevent_add_fd(ev, oserver, oserver->fd,
+ TEVENT_FD_READ, add_client, oserver);
+ if (!oserver->fde)
+ return false;
+ return true;
+}
+
+struct oserver *oserver_restore(struct tevent_context *ev, const char *dumpfile)
+{
+ unsigned int i;
+ struct oserver *oserver = talloc(ev, struct oserver);
+ if (!load_file(oserver, dumpfile)) {
+ talloc_free(oserver);
+ return NULL;
+ }
+
+ /* Restore ignored fields in clients (fde and oserver). */
+ for (i = 0; i < ARRAY_SIZE(oserver->clients); i++) {
+ struct client *client = oserver->clients[i];
+ if (!client)
+ continue;
+ client->oserver = oserver;
+ client->fde = tevent_add_fd(ev, client, client->fd,
+ state_flag_map[client->state],
+ service_client, client);
+ tevent_fd_set_auto_close(client->fde);
+ }
+
+ if (!complete_server(ev, oserver, dumpfile)) {
+ talloc_free(oserver);
+ return NULL;
+ }
+ return oserver;
+}
+
+struct oserver *oserver_setup(struct tevent_context *ev, unsigned short port,
+ const char *dumpfile)