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
|
/*
Unix SMB/CIFS implementation.
Manage connections_struct structures
Copyright (C) Andrew Tridgell 1998
Copyright (C) Alexander Bokovoy 2002
Copyright (C) Jeremy Allison 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 "rpc_server/rpc_pipes.h"
/****************************************************************************
Update last used timestamps.
****************************************************************************/
static void conn_lastused_update(struct smbd_server_connection *sconn,time_t t)
{
struct connection_struct *conn;
for (conn=sconn->connections; conn; conn=conn->next) {
/* Update if connection wasn't idle. */
if (conn->lastused != conn->lastused_count) {
conn->lastused = t;
conn->lastused_count = t;
}
}
}
/****************************************************************************
Idle inactive connections.
****************************************************************************/
bool conn_idle_all(struct smbd_server_connection *sconn, time_t t)
{
int deadtime = lp_deadtime()*60;
struct connection_struct *conn;
conn_lastused_update(sconn, t);
if (deadtime <= 0) {
return false;
}
for (conn=sconn->connections;conn;conn=conn->next) {
time_t age = t - conn->lastused;
if (conn->num_files_open > 0 || age < deadtime) {
return false;
}
}
/*
* Check all pipes for any open handles. We cannot
* idle with a handle open.
*/
if (check_open_pipes()) {
return false;
}
return true;
}
/****************************************************************************
Forcibly unmount a share.
All instances of the parameter 'sharename' share are unmounted.
The special sharename '*' forces unmount of all shares.
****************************************************************************/
void conn_force_tdis(struct smbd_server_connection *sconn, const char *sharename)
{
connection_struct *conn, *next;
bool close_all = false;
if (strcmp(sharename, "*") == 0) {
close_all = true;
DEBUG(1, ("conn_force_tdis: Forcing close of all shares\n"));
}
/* SMB1 and SMB 2*/
for (conn = sconn->connections; conn; conn = next) {
struct smbXsrv_tcon *tcon;
bool do_close = false;
NTSTATUS status;
uint64_t vuid = UID_FIELD_INVALID;
next = conn->next;
if (conn->tcon == NULL) {
continue;
}
tcon = conn->tcon;
if (close_all) {
do_close = true;
} else if (strequal(lp_servicename(talloc_tos(), SNUM(conn)),
sharename)) {
DEBUG(1, ("conn_force_tdis: Forcing close of "
"share '%s' (wire_id=0x%08x)\n",
tcon->global->share_name,
tcon->global->tcon_wire_id));
do_close = true;
}
if (!do_close) {
continue;
}
if (sconn->using_smb2) {
vuid = conn->vuid;
}
conn = NULL;
status = smbXsrv_tcon_disconnect(tcon, vuid);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("conn_force_tdis: "
"smbXsrv_tcon_disconnect() of share '%s' "
"(wire_id=0x%08x) failed: %s\n",
tcon->global->share_name,
tcon->global->tcon_wire_id,
nt_errstr(status)));
}
TALLOC_FREE(tcon);
}
change_to_root_user();
reload_services(sconn, conn_snum_used, true);
}
|
