1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
|
/*
Unix SMB/CIFS implementation.
Main SMB server routines
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Martin Pool 2002
Copyright (C) Jelmer Vernooij 2002-2003
Copyright (C) Volker Lendecke 1993-2007
Copyright (C) Jeremy Allison 1993-2007
Copyright (C) Andrew Bartlett 2010
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "ntdomain.h"
#include "../librpc/gen_ndr/srv_dfs.h"
#include "../librpc/gen_ndr/srv_dssetup.h"
#include "../librpc/gen_ndr/srv_echo.h"
#include "../librpc/gen_ndr/srv_eventlog.h"
#include "../librpc/gen_ndr/srv_initshutdown.h"
#include "../librpc/gen_ndr/srv_lsa.h"
#include "../librpc/gen_ndr/srv_netlogon.h"
#include "../librpc/gen_ndr/srv_ntsvcs.h"
#include "../librpc/gen_ndr/srv_samr.h"
#include "../librpc/gen_ndr/srv_spoolss.h"
#include "../librpc/gen_ndr/srv_srvsvc.h"
#include "../librpc/gen_ndr/srv_svcctl.h"
#include "../librpc/gen_ndr/srv_winreg.h"
#include "../librpc/gen_ndr/srv_wkssvc.h"
#include "../librpc/gen_ndr/srv_fsrvp.h"
#include "../librpc/gen_ndr/srv_epmapper.h"
#include "printing/notify.h"
#include "printing.h"
#include "serverid.h"
#include "messages.h"
#include "passdb.h"
#include "../lib/util/pidfile.h"
#include "smbprofile.h"
#include "libcli/auth/netlogon_creds_cli.h"
#include "lib/gencache.h"
static struct files_struct *log_writeable_file_fn(
struct files_struct *fsp, void *private_data)
{
bool *found = (bool *)private_data;
char *path;
if (!fsp->can_write) {
return NULL;
}
if (!(*found)) {
DEBUG(0, ("Writable files open at exit:\n"));
*found = true;
}
path = talloc_asprintf(talloc_tos(), "%s/%s", fsp->conn->connectpath,
smb_fname_str_dbg(fsp->fsp_name));
if (path == NULL) {
DEBUGADD(0, ("<NOMEM>\n"));
}
DEBUGADD(0, ("%s\n", path));
TALLOC_FREE(path);
return NULL;
}
/****************************************************************************
Exit the server.
****************************************************************************/
/* Reasons for shutting down a server process. */
enum server_exit_reason { SERVER_EXIT_NORMAL, SERVER_EXIT_ABNORMAL };
static void exit_server_common(enum server_exit_reason how,
const char *reason) _NORETURN_;
static void exit_server_common(enum server_exit_reason how,
const char *reason)
{
struct smbXsrv_client *client = global_smbXsrv_client;
struct smbXsrv_connection *xconn = NULL;
struct smbd_server_connection *sconn = NULL;
struct messaging_context *msg_ctx = global_messaging_context();
if (client != NULL) {
sconn = client->sconn;
xconn = client->connections;
}
if (!exit_firsttime)
exit(0);
exit_firsttime = false;
change_to_root_user();
/*
* Here we typically have just one connection
*/
for (; xconn != NULL; xconn = xconn->next) {
/*
* This is typically the disconnect for the only
* (or with multi-channel last) connection of the client
*/
if (NT_STATUS_IS_OK(xconn->transport.status)) {
switch (how) {
case SERVER_EXIT_ABNORMAL:
xconn->transport.status = NT_STATUS_INTERNAL_ERROR;
break;
case SERVER_EXIT_NORMAL:
xconn->transport.status = NT_STATUS_LOCAL_DISCONNECT;
break;
}
}
DO_PROFILE_INC(disconnect);
}
change_to_root_user();
if (sconn != NULL) {
if (lp_log_writeable_files_on_exit()) {
bool found = false;
files_forall(sconn, log_writeable_file_fn, &found);
}
}
change_to_root_user();
if (client != NULL) {
NTSTATUS status;
/*
* Note: this is a no-op for smb2 as
* conn->tcon_table is empty
*/
status = smb1srv_tcon_disconnect_all(client);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Server exit (%s)\n",
(reason ? reason : "normal exit")));
DEBUG(0, ("exit_server_common: "
"smb1srv_tcon_disconnect_all() failed (%s) - "
"triggering cleanup\n", nt_errstr(status)));
}
status = smbXsrv_session_logoff_all(client);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("Server exit (%s)\n",
(reason ? reason : "normal exit")));
DEBUG(0, ("exit_server_common: "
"smbXsrv_session_logoff_all() failed (%s) - "
"triggering cleanup\n", nt_errstr(status)));
}
}
change_to_root_user();
if (client != NULL) {
struct smbXsrv_connection *xconn_next = NULL;
for (xconn = client->connections;
xconn != NULL;
xconn = xconn_next) {
xconn_next = xconn->next;
DLIST_REMOVE(client->connections, xconn);
TALLOC_FREE(xconn);
}
}
change_to_root_user();
/* 3 second timeout. */
print_notify_send_messages(msg_ctx, 3);
#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
if (am_parent) {
rpc_wkssvc_shutdown();
rpc_dssetup_shutdown();
#ifdef DEVELOPER
rpc_rpcecho_shutdown();
#endif
rpc_netdfs_shutdown();
rpc_initshutdown_shutdown();
rpc_eventlog_shutdown();
rpc_ntsvcs_shutdown();
rpc_svcctl_shutdown();
rpc_spoolss_shutdown();
rpc_srvsvc_shutdown();
rpc_winreg_shutdown();
rpc_netlogon_shutdown();
rpc_samr_shutdown();
rpc_lsarpc_shutdown();
rpc_FileServerVssAgent_shutdown();
rpc_epmapper_shutdown();
}
/*
* we need to force the order of freeing the following,
* because smbd_msg_ctx is not a talloc child of smbd_server_conn.
*/
if (client != NULL) {
TALLOC_FREE(client->sconn);
}
sconn = NULL;
xconn = NULL;
client = NULL;
netlogon_creds_cli_close_global_db();
TALLOC_FREE(global_smbXsrv_client);
smbprofile_dump();
global_messaging_context_free();
global_event_context_free();
TALLOC_FREE(smbd_memcache_ctx);
locking_end();
printing_end();
if (how != SERVER_EXIT_NORMAL) {
smb_panic(reason);
/* Notreached. */
exit(1);
} else {
DEBUG(3,("Server exit (%s)\n",
(reason ? reason : "normal exit")));
if (am_parent) {
pidfile_unlink(lp_pid_directory(), "smbd");
}
}
exit(0);
}
void smbd_exit_server(const char *const explanation)
{
exit_server_common(SERVER_EXIT_ABNORMAL, explanation);
}
void smbd_exit_server_cleanly(const char *const explanation)
{
exit_server_common(SERVER_EXIT_NORMAL, explanation);
}
/*
* reinit_after_fork() wrapper that should be called when forking from
* smbd.
*/
NTSTATUS smbd_reinit_after_fork(struct messaging_context *msg_ctx,
struct tevent_context *ev_ctx,
bool parent_longlived, const char *comment)
{
NTSTATUS ret;
am_parent = NULL;
ret = reinit_after_fork(msg_ctx, ev_ctx, parent_longlived, comment);
initialize_password_db(true, ev_ctx);
return ret;
}
|
