auth: Make sure that creds_out is initialized with NULL.
[Samba.git] / source3 / smbd / server_exit.c
blob0bd6f5c2c023a2c8c47921816a22f030c7a4f02a
1 /*
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/>.
25 #include "includes.h"
26 #include "smbd/smbd.h"
27 #include "smbd/globals.h"
28 #include "ntdomain.h"
29 #include "../librpc/gen_ndr/srv_dfs.h"
30 #include "../librpc/gen_ndr/srv_dssetup.h"
31 #include "../librpc/gen_ndr/srv_echo.h"
32 #include "../librpc/gen_ndr/srv_eventlog.h"
33 #include "../librpc/gen_ndr/srv_initshutdown.h"
34 #include "../librpc/gen_ndr/srv_lsa.h"
35 #include "../librpc/gen_ndr/srv_netlogon.h"
36 #include "../librpc/gen_ndr/srv_ntsvcs.h"
37 #include "../librpc/gen_ndr/srv_samr.h"
38 #include "../librpc/gen_ndr/srv_spoolss.h"
39 #include "../librpc/gen_ndr/srv_srvsvc.h"
40 #include "../librpc/gen_ndr/srv_svcctl.h"
41 #include "../librpc/gen_ndr/srv_winreg.h"
42 #include "../librpc/gen_ndr/srv_wkssvc.h"
43 #include "printing/notify.h"
44 #include "printing.h"
45 #include "serverid.h"
46 #include "messages.h"
47 #include "../lib/util/pidfile.h"
49 static struct files_struct *log_writeable_file_fn(
50 struct files_struct *fsp, void *private_data)
52 bool *found = (bool *)private_data;
53 char *path;
55 if (!fsp->can_write) {
56 return NULL;
58 if (!(*found)) {
59 DEBUG(0, ("Writable files open at exit:\n"));
60 *found = true;
63 path = talloc_asprintf(talloc_tos(), "%s/%s", fsp->conn->connectpath,
64 smb_fname_str_dbg(fsp->fsp_name));
65 if (path == NULL) {
66 DEBUGADD(0, ("<NOMEM>\n"));
69 DEBUGADD(0, ("%s\n", path));
71 TALLOC_FREE(path);
72 return NULL;
75 /****************************************************************************
76 Exit the server.
77 ****************************************************************************/
79 /* Reasons for shutting down a server process. */
80 enum server_exit_reason { SERVER_EXIT_NORMAL, SERVER_EXIT_ABNORMAL };
82 static void exit_server_common(enum server_exit_reason how,
83 const char *reason) _NORETURN_;
85 static void exit_server_common(enum server_exit_reason how,
86 const char *reason)
88 struct smbXsrv_connection *conn = global_smbXsrv_connection;
89 struct smbd_server_connection *sconn = NULL;
90 struct messaging_context *msg_ctx = server_messaging_context();
92 if (conn != NULL) {
93 sconn = conn->sconn;
96 if (!exit_firsttime)
97 exit(0);
98 exit_firsttime = false;
100 change_to_root_user();
102 if (sconn) {
103 NTSTATUS status;
105 if (NT_STATUS_IS_OK(sconn->status)) {
106 switch (how) {
107 case SERVER_EXIT_ABNORMAL:
108 sconn->status = NT_STATUS_INTERNAL_ERROR;
109 break;
110 case SERVER_EXIT_NORMAL:
111 sconn->status = NT_STATUS_LOCAL_DISCONNECT;
112 break;
116 TALLOC_FREE(sconn->smb1.negprot.auth_context);
118 if (lp_log_writeable_files_on_exit()) {
119 bool found = false;
120 files_forall(sconn, log_writeable_file_fn, &found);
124 * Note: this is a no-op for smb2 as
125 * conn->tcon_table is empty
127 status = smb1srv_tcon_disconnect_all(conn);
128 if (!NT_STATUS_IS_OK(status)) {
129 DEBUG(0,("Server exit (%s)\n",
130 (reason ? reason : "normal exit")));
131 DEBUG(0, ("exit_server_common: "
132 "smb1srv_tcon_disconnect_all() failed (%s) - "
133 "triggering cleanup\n", nt_errstr(status)));
134 how = SERVER_EXIT_ABNORMAL;
135 reason = "smb1srv_tcon_disconnect_all failed";
138 status = smbXsrv_session_logoff_all(conn);
139 if (!NT_STATUS_IS_OK(status)) {
140 DEBUG(0,("Server exit (%s)\n",
141 (reason ? reason : "normal exit")));
142 DEBUG(0, ("exit_server_common: "
143 "smbXsrv_session_logoff_all() failed (%s) - "
144 "triggering cleanup\n", nt_errstr(status)));
145 how = SERVER_EXIT_ABNORMAL;
146 reason = "smbXsrv_session_logoff_all failed";
149 change_to_root_user();
152 /* 3 second timeout. */
153 print_notify_send_messages(msg_ctx, 3);
155 /* delete our entry in the serverid database. */
156 if (am_parent) {
158 * For children the parent takes care of cleaning up
160 serverid_deregister(messaging_server_id(msg_ctx));
163 #ifdef WITH_DFS
164 if (dcelogin_atmost_once) {
165 dfs_unlogin();
167 #endif
169 #ifdef USE_DMAPI
170 /* Destroy Samba DMAPI session only if we are master smbd process */
171 if (am_parent) {
172 if (!dmapi_destroy_session()) {
173 DEBUG(0,("Unable to close Samba DMAPI session\n"));
176 #endif
178 if (am_parent) {
179 rpc_wkssvc_shutdown();
180 rpc_dssetup_shutdown();
181 #ifdef DEVELOPER
182 rpc_rpcecho_shutdown();
183 #endif
184 rpc_netdfs_shutdown();
185 rpc_initshutdown_shutdown();
186 rpc_eventlog_shutdown();
187 rpc_ntsvcs_shutdown();
188 rpc_svcctl_shutdown();
189 rpc_spoolss_shutdown();
191 rpc_srvsvc_shutdown();
192 rpc_winreg_shutdown();
194 rpc_netlogon_shutdown();
195 rpc_samr_shutdown();
196 rpc_lsarpc_shutdown();
200 * we need to force the order of freeing the following,
201 * because smbd_msg_ctx is not a talloc child of smbd_server_conn.
203 sconn = NULL;
204 conn = NULL;
205 TALLOC_FREE(global_smbXsrv_connection);
206 server_messaging_context_free();
207 server_event_context_free();
208 TALLOC_FREE(smbd_memcache_ctx);
210 locking_end();
211 printing_end();
213 if (how != SERVER_EXIT_NORMAL) {
214 DEBUGSEP(0);
215 DEBUG(0,("Abnormal server exit: %s\n",
216 reason ? reason : "no explanation provided"));
217 DEBUGSEP(0);
219 log_stack_trace();
221 dump_core();
223 /* Notreached. */
224 exit(1);
225 } else {
226 DEBUG(3,("Server exit (%s)\n",
227 (reason ? reason : "normal exit")));
228 if (am_parent) {
229 pidfile_unlink(lp_piddir(), "smbd");
231 gencache_stabilize();
234 exit(0);
237 void smbd_exit_server(const char *const explanation)
239 exit_server_common(SERVER_EXIT_ABNORMAL, explanation);
242 void smbd_exit_server_cleanly(const char *const explanation)
244 exit_server_common(SERVER_EXIT_NORMAL, explanation);