2 Unix SMB/CIFS implementation.
3 Main SMB server routines
4 Copyright (C) Andrew Tridgell 1992-1998
5 Copyright (C) Martin Pool 2002
6 Copyright (C) Jelmer Vernooij 2002-2003
7 Copyright (C) Volker Lendecke 1993-2007
8 Copyright (C) Jeremy Allison 1993-2007
9 Copyright (C) Andrew Bartlett 2010
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 3 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #include "smbd/smbd.h"
27 #include "smbd/globals.h"
29 #include "librpc/rpc/dcesrv_core.h"
30 #include "printing/notify.h"
35 #include "../lib/util/pidfile.h"
36 #include "smbprofile.h"
37 #include "libcli/auth/netlogon_creds_cli.h"
38 #include "lib/gencache.h"
39 #include "rpc_server/rpc_config.h"
41 static struct files_struct
*log_writeable_file_fn(
42 struct files_struct
*fsp
, void *private_data
)
44 bool *found
= (bool *)private_data
;
47 if (!fsp
->fsp_flags
.can_write
) {
51 DEBUG(0, ("Writable files open at exit:\n"));
55 path
= talloc_asprintf(talloc_tos(), "%s/%s", fsp
->conn
->connectpath
,
56 smb_fname_str_dbg(fsp
->fsp_name
));
58 DEBUGADD(0, ("<NOMEM>\n"));
61 DEBUGADD(0, ("%s\n", path
));
67 /****************************************************************************
69 ****************************************************************************/
71 /* Reasons for shutting down a server process. */
72 enum server_exit_reason
{ SERVER_EXIT_NORMAL
, SERVER_EXIT_ABNORMAL
};
74 static void exit_server_common(enum server_exit_reason how
,
75 const char *reason
) _NORETURN_
;
77 static void exit_server_common(enum server_exit_reason how
,
80 struct smbXsrv_client
*client
= global_smbXsrv_client
;
81 struct smbXsrv_connection
*xconn
= NULL
;
82 struct smbd_server_connection
*sconn
= NULL
;
83 struct messaging_context
*msg_ctx
= global_messaging_context();
84 NTSTATUS disconnect_status
;
86 if (!exit_firsttime
) {
89 exit_firsttime
= false;
92 case SERVER_EXIT_NORMAL
:
93 disconnect_status
= NT_STATUS_LOCAL_DISCONNECT
;
95 case SERVER_EXIT_ABNORMAL
:
97 disconnect_status
= NT_STATUS_INTERNAL_ERROR
;
101 if (client
!= NULL
) {
104 sconn
= client
->sconn
;
105 xconn
= client
->connections
;
108 * Make sure we stop handling new multichannel
111 * From here, we're not able to handle them.
113 status
= smbXsrv_client_remove(client
);
114 if (!NT_STATUS_IS_OK(status
)) {
115 D_ERR("Server exit (%s)\n",
116 (reason
? reason
: "normal exit"));
117 DBG_ERR("smbXsrv_client_remove() failed (%s)\n",
122 change_to_root_user();
126 * Here we typically have just one connection
128 for (; xconn
!= NULL
; xconn
= xconn
->next
) {
130 * This is typically the disconnect for the only
131 * (or with multi-channel last) connection of the client.
133 * smbXsrv_connection_disconnect_transport() might be called already,
134 * but calling it again is a no-op.
136 smbXsrv_connection_disconnect_transport(xconn
, disconnect_status
);
139 change_to_root_user();
142 if (lp_log_writeable_files_on_exit()) {
144 files_forall(sconn
, log_writeable_file_fn
, &found
);
148 change_to_root_user();
150 if (client
!= NULL
) {
154 * Note: this is a no-op for smb2 as
155 * conn->tcon_table is empty
157 status
= smb1srv_tcon_disconnect_all(client
);
158 if (!NT_STATUS_IS_OK(status
)) {
159 DEBUG(0,("Server exit (%s)\n",
160 (reason
? reason
: "normal exit")));
161 DEBUG(0, ("exit_server_common: "
162 "smb1srv_tcon_disconnect_all() failed (%s) - "
163 "triggering cleanup\n", nt_errstr(status
)));
166 status
= smbXsrv_session_logoff_all(client
);
167 if (!NT_STATUS_IS_OK(status
)) {
168 DEBUG(0,("Server exit (%s)\n",
169 (reason
? reason
: "normal exit")));
170 DEBUG(0, ("exit_server_common: "
171 "smbXsrv_session_logoff_all() failed (%s) - "
172 "triggering cleanup\n", nt_errstr(status
)));
176 change_to_root_user();
178 if (client
!= NULL
) {
179 struct smbXsrv_connection
*xconn_next
= NULL
;
181 for (xconn
= client
->connections
;
183 xconn
= xconn_next
) {
184 xconn_next
= xconn
->next
;
185 DLIST_REMOVE(client
->connections
, xconn
);
190 change_to_root_user();
192 /* 3 second timeout. */
193 print_notify_send_messages(msg_ctx
, 3);
196 /* Destroy Samba DMAPI session only if we are master smbd process */
198 if (!dmapi_destroy_session()) {
199 DEBUG(0,("Unable to close Samba DMAPI session\n"));
204 if (am_parent
&& sconn
!= NULL
) {
205 dcesrv_shutdown_registered_ep_servers(sconn
->dce_ctx
);
207 global_dcesrv_context_free();
211 * we need to force the order of freeing the following,
212 * because smbd_msg_ctx is not a talloc child of smbd_server_conn.
214 if (client
!= NULL
) {
215 TALLOC_FREE(client
->sconn
);
220 netlogon_creds_cli_close_global_db();
221 TALLOC_FREE(global_smbXsrv_client
);
223 global_messaging_context_free();
224 global_event_context_free();
225 TALLOC_FREE(smbd_memcache_ctx
);
230 if (how
!= SERVER_EXIT_NORMAL
) {
237 DEBUG(3,("Server exit (%s)\n",
238 (reason
? reason
: "normal exit")));
240 pidfile_unlink(lp_pid_directory(), "smbd");
247 void smbd_exit_server(const char *const explanation
)
249 exit_server_common(SERVER_EXIT_ABNORMAL
, explanation
);
252 void smbd_exit_server_cleanly(const char *const explanation
)
254 exit_server_common(SERVER_EXIT_NORMAL
, explanation
);
258 * reinit_after_fork() wrapper that should be called when forking from
261 NTSTATUS
smbd_reinit_after_fork(struct messaging_context
*msg_ctx
,
262 struct tevent_context
*ev_ctx
,
263 bool parent_longlived
, const char *comment
)
267 ret
= reinit_after_fork(msg_ctx
, ev_ctx
, parent_longlived
, comment
);
268 initialize_password_db(true, ev_ctx
);