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eb1d37c5a9
replay attacks under SMB signing, where the session key is a fixed derivitive of the user's password. This removes the VID offset, but I'm not worried about random client bytes mattering here, given the space (and the fact that it applies to very, very old clients). Andrew Bartlett
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/*
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Unix SMB/CIFS implementation.
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Manage smbsrv_tcon structures
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Copyright (C) Andrew Tridgell 1998
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Copyright (C) Alexander Bokovoy 2002
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#include "system/filesys.h"
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#include "dlinklist.h"
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#include "smb_server/smb_server.h"
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#include "smbd/service_stream.h"
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/****************************************************************************
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init the tcon structures
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****************************************************************************/
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void smbsrv_tcon_init(struct smbsrv_connection *smb_conn)
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{
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smb_conn->tree.idtree_tid = idr_init(smb_conn);
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}
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/****************************************************************************
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find a tcon given a cnum
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****************************************************************************/
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struct smbsrv_tcon *smbsrv_tcon_find(struct smbsrv_connection *smb_conn, uint_t tid)
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{
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return idr_find(smb_conn->tree.idtree_tid, tid);
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}
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/*
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destroy a connection structure
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*/
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static int smbsrv_tcon_destructor(void *ptr)
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{
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struct smbsrv_tcon *tcon = ptr;
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DEBUG(3,("%s closed connection to service %s\n",
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socket_get_peer_addr(tcon->smb_conn->connection->socket, tcon),
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lp_servicename(tcon->service)));
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/* tell the ntvfs backend that we are disconnecting */
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ntvfs_disconnect(tcon);
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idr_remove(tcon->smb_conn->tree.idtree_tid, tcon->tid);
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DLIST_REMOVE(tcon->smb_conn->tree.tcons, tcon);
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return 0;
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}
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/*
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find first available connection slot
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*/
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struct smbsrv_tcon *smbsrv_tcon_new(struct smbsrv_connection *smb_conn)
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{
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struct smbsrv_tcon *tcon;
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int i;
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tcon = talloc_zero(smb_conn, struct smbsrv_tcon);
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if (!tcon) return NULL;
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i = idr_get_new_random(smb_conn->tree.idtree_tid, tcon, UINT16_MAX);
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if (i == -1) {
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DEBUG(1,("ERROR! Out of connection structures\n"));
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return NULL;
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}
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tcon->tid = i;
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tcon->smb_conn = smb_conn;
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talloc_set_destructor(tcon, smbsrv_tcon_destructor);
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DLIST_ADD(smb_conn->tree.tcons, tcon);
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return tcon;
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}
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