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-rw-r--r--source3/smbd/conn_idle.c207
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diff --git a/source3/smbd/conn_idle.c b/source3/smbd/conn_idle.c
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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_ncacn_np.h"
+
+/****************************************************************************
+ Update last used timestamps.
+****************************************************************************/
+
+static void conn_lastused_update(struct smbd_server_connection *sconn,time_t t)
+{
+ if (sconn->using_smb2) {
+ /* SMB2 */
+ struct smbd_smb2_session *sess;
+ for (sess = sconn->smb2.sessions.list; sess; sess = sess->next) {
+ struct smbd_smb2_tcon *ptcon;
+
+ for (ptcon = sess->tcons.list; ptcon; ptcon = ptcon->next) {
+ connection_struct *conn = ptcon->compat_conn;
+ /* Update if connection wasn't idle. */
+ if (conn && conn->lastused != conn->lastused_count) {
+ conn->lastused = t;
+ conn->lastused_count = t;
+ }
+ }
+ }
+ } else {
+ /* SMB1 */
+ connection_struct *conn;
+ for (conn=sconn->smb1.tcons.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;
+
+ conn_lastused_update(sconn, t);
+
+ if (deadtime <= 0) {
+ deadtime = DEFAULT_SMBD_TIMEOUT;
+ }
+
+ if (sconn->using_smb2) {
+ /* SMB2 */
+ struct smbd_smb2_session *sess;
+ for (sess = sconn->smb2.sessions.list; sess; sess = sess->next) {
+ struct smbd_smb2_tcon *ptcon;
+
+ for (ptcon = sess->tcons.list; ptcon; ptcon = ptcon->next) {
+ time_t age;
+ connection_struct *conn = ptcon->compat_conn;
+
+ if (conn == NULL) {
+ continue;
+ }
+
+ 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;
+ }
+ }
+ }
+ } else {
+ /* SMB1 */
+ connection_struct *conn;
+ for (conn=sconn->smb1.tcons.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;
+}
+
+/****************************************************************************
+ Close all conn structures.
+ Return true if any were closed.
+****************************************************************************/
+
+bool conn_close_all(struct smbd_server_connection *sconn)
+{
+ bool ret = false;
+ if (sconn->using_smb2) {
+ /* SMB2 */
+ struct smbd_smb2_session *sess;
+ for (sess = sconn->smb2.sessions.list; sess; sess = sess->next) {
+ struct smbd_smb2_tcon *tcon, *tc_next;
+
+ for (tcon = sess->tcons.list; tcon; tcon = tc_next) {
+ tc_next = tcon->next;
+ TALLOC_FREE(tcon);
+ ret = true;
+ }
+ }
+ } else {
+ /* SMB1 */
+ connection_struct *conn, *next;
+
+ for (conn=sconn->smb1.tcons.Connections;conn;conn=next) {
+ next=conn->next;
+ set_current_service(conn, 0, True);
+ close_cnum(conn, conn->vuid);
+ ret = true;
+ }
+ }
+ return ret;
+}
+
+
+/****************************************************************************
+ 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;
+
+ if (strcmp(sharename, "*") == 0) {
+ DEBUG(1,("Forcing close of all shares\n"));
+ conn_close_all(sconn);
+ return;
+ }
+
+ if (sconn->using_smb2) {
+ /* SMB2 */
+ struct smbd_smb2_session *sess;
+ for (sess = sconn->smb2.sessions.list; sess; sess = sess->next) {
+ struct smbd_smb2_tcon *tcon, *tc_next;
+
+ for (tcon = sess->tcons.list; tcon; tcon = tc_next) {
+ tc_next = tcon->next;
+ if (tcon->compat_conn &&
+ strequal(lp_servicename(SNUM(tcon->compat_conn)),
+ sharename)) {
+ DEBUG(1,("Forcing close of share %s cnum=%d\n",
+ sharename, tcon->compat_conn->cnum));
+ TALLOC_FREE(tcon);
+ }
+ }
+ }
+ } else {
+ /* SMB1 */
+ for (conn=sconn->smb1.tcons.Connections;conn;conn=next) {
+ next=conn->next;
+ if (strequal(lp_servicename(SNUM(conn)), sharename)) {
+ DEBUG(1,("Forcing close of share %s cnum=%d\n",
+ sharename, conn->cnum));
+ close_cnum(conn, (uint16)-1);
+ }
+ }
+ }
+}