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/*
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) {
deadtime = DEFAULT_SMBD_TIMEOUT;
}
for (conn=sconn->connections;conn;conn=conn->next) {
time_t age = t - conn->lastused;
/* close dirptrs on connections that are idle */
if (age > DPTR_IDLE_TIMEOUT) {
dptr_idlecnum(conn);
}
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);
}
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