s3-smbd Split conn.c into 3 files

The idea with this split is to make it easier to handle dependencies,
avoiding having the loadparm code depend on the global server
variables, without resorting to dummy functions and linker tricks.

conn_clear_vuid_cache() is brought in from uid.c to make it static

Andrew Bartlett

1 files changed, 207 insertions, 0 deletions

diff --git a/source3/smbd/conn_idle.c b/source3/smbd/conn_idle.c
new file mode 100644
index 0000000000..46f5b7b111
--- /dev/null
+++ b/source3/smbd/conn_idle.c
@@ -0,0 +1,207 @@
+/*
+   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);
+			}
+		}
+	}
+}