return server_fd;
}
+int client_get_tcp_info(struct sockaddr_in *server, struct sockaddr_in *client)
+{
+ socklen_t length;
+ if (server_fd == -1) {
+ return -1;
+ }
+ length = sizeof(*server);
+ if (getsockname(server_fd, (struct sockaddr *)server, &length) != 0) {
+ return -1;
+ }
+ length = sizeof(*client);
+ if (getpeername(server_fd, (struct sockaddr *)client, &length) != 0) {
+ return -1;
+ }
+ return 0;
+}
+
struct event_context *smbd_event_context(void)
{
static struct event_context *ctx;
{
static struct messaging_context *ctx;
- if (!ctx && !(ctx = messaging_init(NULL, server_id_self(),
- smbd_event_context()))) {
- smb_panic("Could not init smbd messaging context");
+ if (ctx == NULL) {
+ ctx = messaging_init(NULL, server_id_self(),
+ smbd_event_context());
+ }
+ if (ctx == NULL) {
+ DEBUG(0, ("Could not init smbd messaging context.\n"));
}
return ctx;
}
num_children += 1;
}
-static void remove_child_pid(pid_t pid)
+static void remove_child_pid(pid_t pid, bool unclean_shutdown)
{
struct child_pid *child;
+ if (unclean_shutdown) {
+ /* a child terminated uncleanly so tickle all processes to see
+ if they can grab any of the pending locks
+ */
+ messaging_send_buf(smbd_messaging_context(), procid_self(),
+ MSG_SMB_BRL_VALIDATE, NULL, 0);
+ message_send_all(smbd_messaging_context(),
+ MSG_SMB_UNLOCK, NULL, 0, NULL);
+ }
+
if (lp_max_smbd_processes() == 0) {
/* Don't bother with the child list if we don't care anyway */
return;
clustered mode, ctdb won't allow us to start doing database
operations until it has gone thru a full startup, which
includes checking to see that smbd is listening. */
- claim_connection(NULL,"",FLAG_MSG_GENERAL|FLAG_MSG_SMBD);
+ claim_connection(NULL,"",
+ FLAG_MSG_GENERAL|FLAG_MSG_SMBD|FLAG_MSG_DBWRAP);
/* Listen to messages */
if (got_sig_cld) {
pid_t pid;
+ int status;
+
got_sig_cld = False;
- while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
- remove_child_pid(pid);
+ while ((pid = sys_waitpid(-1, &status, WNOHANG)) > 0) {
+ bool unclean_shutdown = False;
+
+ /* If the child terminated normally, assume
+ it was an unclean shutdown unless the
+ status is 0
+ */
+ if (WIFEXITED(status)) {
+ unclean_shutdown = WEXITSTATUS(status);
+ }
+ /* If the child terminated due to a signal
+ we always assume it was unclean.
+ */
+ if (WIFSIGNALED(status)) {
+ unclean_shutdown = True;
+ }
+ remove_child_pid(pid, unclean_shutdown);
}
}
continue;
}
+
+
+ /* If the idle timeout fired and we don't have any connected
+ * users, exit gracefully. We should be running under a process
+ * controller that will restart us if necessry.
+ */
+ if (num == 0 && count_all_current_connections() == 0) {
+ exit_server_cleanly("idle timeout");
+ }
/* process pending nDNS responses */
if (dns_register_smbd_reply(dns_reg, &r_fds, &idle_timeout)) {
continue;
if (smbd_server_fd() == -1) {
- DEBUG(0,("open_sockets_smbd: accept: %s\n",
+ DEBUG(2,("open_sockets_smbd: accept: %s\n",
strerror(errno)));
continue;
}
sizeof(remaddr)),
false);
- /* Reset the state of the random
- * number generation system, so
- * children do not get the same random
- * numbers as each other */
-
- set_need_random_reseed();
- /* tdb needs special fork handling - remove
- * CLEAR_IF_FIRST flags */
- if (tdb_reopen_all(1) == -1) {
- DEBUG(0,("tdb_reopen_all failed.\n"));
- smb_panic("tdb_reopen_all failed");
+ if (!reinit_after_fork(
+ smbd_messaging_context(), true)) {
+ DEBUG(0,("reinit_after_fork() failed\n"));
+ smb_panic("reinit_after_fork() failed");
}
return True;
}
#endif
+#ifdef USE_DMAPI
+ /* Destroy Samba DMAPI session only if we are master smbd process */
+ if (am_parent) {
+ if (!dmapi_destroy_session()) {
+ DEBUG(0,("Unable to close Samba DMAPI session\n"));
+ }
+ }
+#endif
+
locking_end();
printing_end();
exit_server("critical server fault");
}
+
+/****************************************************************************
+received when we should release a specific IP
+****************************************************************************/
+static void release_ip(const char *ip, void *priv)
+{
+ char addr[INET6_ADDRSTRLEN];
+
+ if (strcmp(client_socket_addr(get_client_fd(),addr,sizeof(addr)), ip) == 0) {
+ /* we can't afford to do a clean exit - that involves
+ database writes, which would potentially mean we
+ are still running after the failover has finished -
+ we have to get rid of this process ID straight
+ away */
+ DEBUG(0,("Got release IP message for our IP %s - exiting immediately\n",
+ ip));
+ _exit(0);
+ }
+}
+
+static void msg_release_ip(struct messaging_context *msg_ctx, void *private_data,
+ uint32_t msg_type, struct server_id server_id, DATA_BLOB *data)
+{
+ release_ip((char *)data->data, NULL);
+}
+
/****************************************************************************
Initialise connect, service and file structs.
****************************************************************************/
init_dptrs();
- secrets_init();
+ if (!secrets_init())
+ return False;
return True;
}
exit(1);
}
- /*
- * Do this before reload_services.
- */
+ if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
+ DEBUG(0, ("error opening config file\n"));
+ exit(1);
+ }
+
+ if (smbd_messaging_context() == NULL)
+ exit(1);
if (!reload_services(False))
return(-1);
if (is_daemon)
pidfile_create("smbd");
- /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
-
- if (smbd_messaging_context() == NULL)
+ if (!reinit_after_fork(smbd_messaging_context(), false)) {
+ DEBUG(0,("reinit_after_fork() failed\n"));
exit(1);
+ }
+
+ /* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
if (smbd_memcache() == NULL) {
exit(1);
namecache_enable();
- if (!init_registry())
+ if (!W_ERROR_IS_OK(registry_init_full()))
exit(1);
#if 0
smbd is launched via inetd and we fork a copy of
ourselves here */
- if ( is_daemon && !interactive )
- start_background_queue();
-
- /* Always attempt to initialize DMAPI. We will only use it later if
- * lp_dmapi_support is set on the share, but we need a single global
- * session to work with.
- */
- dmapi_init_session();
+ if (is_daemon && !interactive
+ && lp_parm_bool(-1, "smbd", "backgroundqueue", true)) {
+ start_background_queue();
+ }
if (!open_sockets_smbd(is_daemon, interactive, ports))
exit(1);
/* Setup aio signal handler. */
initialize_async_io_handler();
- /*
- * For clustering, we need to re-init our ctdbd connection after the
- * fork
- */
- if (!NT_STATUS_IS_OK(messaging_reinit(smbd_messaging_context())))
- exit(1);
-
/* register our message handlers */
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_FORCE_TDIS, msg_force_tdis);
+ messaging_register(smbd_messaging_context(), NULL,
+ MSG_SMB_RELEASE_IP, msg_release_ip);
+ messaging_register(smbd_messaging_context(), NULL,
+ MSG_SMB_CLOSE_FILE, msg_close_file);
if ((lp_keepalive() != 0)
&& !(event_add_idle(smbd_event_context(), NULL,
exit(1);
}
+#ifdef CLUSTER_SUPPORT
+
+ if (lp_clustering()) {
+ /*
+ * We need to tell ctdb about our client's TCP
+ * connection, so that for failover ctdbd can send
+ * tickle acks, triggering a reconnection by the
+ * client.
+ */
+
+ struct sockaddr_in srv, clnt;
+
+ if (client_get_tcp_info(&srv, &clnt) == 0) {
+
+ NTSTATUS status;
+
+ status = ctdbd_register_ips(
+ messaging_ctdbd_connection(),
+ &srv, &clnt, release_ip, NULL);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("ctdbd_register_ips failed: %s\n",
+ nt_errstr(status)));
+ }
+ } else
+ {
+ DEBUG(0,("Unable to get tcp info for "
+ "CTDB_CONTROL_TCP_CLIENT: %s\n",
+ strerror(errno)));
+ }
+ }
+
+#endif
+
TALLOC_FREE(frame);
smbd_process();