r11785: rename conn.c into tcon.c

metze
(This used to be commit eba4f6b7067c3e32a1db897fdca43f9a76a6f5ea)

1 files changed, 115 insertions, 0 deletions

diff --git a/source4/smb_server/tcon.c b/source4/smb_server/tcon.c
new file mode 100644
index 0000000000..6714b61e90
--- /dev/null
+++ b/source4/smb_server/tcon.c
@@ -0,0 +1,115 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Manage smbsrv_tcon structures
+   Copyright (C) Andrew Tridgell 1998
+   Copyright (C) Alexander Bokovoy 2002
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "system/filesys.h"
+#include "dlinklist.h"
+#include "smb_server/smb_server.h"
+#include "smbd/service_stream.h"
+
+
+/****************************************************************************
+init the tcon structures
+****************************************************************************/
+NTSTATUS smbsrv_init_tcons(struct smbsrv_connection *smb_conn, uint32_t limit)
+{
+	/* 
+	 * the idr_* functions take 'int' as limit,
+	 * and only work with a max limit 0x00FFFFFF
+	 */
+	limit &= 0x00FFFFFF;
+
+	smb_conn->tcons.idtree_tid	= idr_init(smb_conn);
+	NT_STATUS_HAVE_NO_MEMORY(smb_conn->tcons.idtree_tid);
+	smb_conn->tcons.idtree_limit	= limit;
+	smb_conn->tcons.list		= NULL;
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************************
+find a tcon given a cnum
+****************************************************************************/
+struct smbsrv_tcon *smbsrv_tcon_find(struct smbsrv_connection *smb_conn, uint32_t tid)
+{
+	void *p;
+	struct smbsrv_tcon *tcon;
+
+	if (tid == 0) return NULL;
+
+	if (tid > smb_conn->tcons.idtree_limit) return NULL;
+
+	p = idr_find(smb_conn->tcons.idtree_tid, tid);
+	if (!p) return NULL;
+
+	tcon = talloc_get_type(p, struct smbsrv_tcon);
+
+	return tcon;
+}
+
+/*
+  destroy a connection structure
+*/
+static int smbsrv_tcon_destructor(void *ptr)
+{
+	struct smbsrv_tcon *tcon = ptr;
+
+	DEBUG(3,("%s closed connection to service %s\n",
+		 socket_get_peer_addr(tcon->smb_conn->connection->socket, tcon),
+		 lp_servicename(tcon->service)));
+
+	/* tell the ntvfs backend that we are disconnecting */
+	if (tcon->ntvfs_ctx) {
+		ntvfs_disconnect(tcon);
+	}
+
+	idr_remove(tcon->smb_conn->tcons.idtree_tid, tcon->tid);
+	DLIST_REMOVE(tcon->smb_conn->tcons.list, tcon);
+	return 0;
+}
+
+/*
+  find first available connection slot
+*/
+struct smbsrv_tcon *smbsrv_tcon_new(struct smbsrv_connection *smb_conn)
+{
+	struct smbsrv_tcon *tcon;
+	int i;
+
+	tcon = talloc_zero(smb_conn, struct smbsrv_tcon);
+	if (!tcon) return NULL;
+	tcon->smb_conn = smb_conn;
+
+	i = idr_get_new_random(smb_conn->tcons.idtree_tid, tcon, smb_conn->tcons.idtree_limit);
+	if (i == -1) {
+		DEBUG(1,("ERROR! Out of connection structures\n"));	       
+		return NULL;
+	}
+	tcon->tid = i;
+
+	DLIST_ADD(smb_conn->tcons.list, tcon);
+	talloc_set_destructor(tcon, smbsrv_tcon_destructor);
+
+	/* now fill in some statistics */
+	tcon->statistics.connect_time = timeval_current();
+
+	return tcon;
+}