1/* 2 Unix SMB/CIFS implementation. 3 SMB client oplock functions 4 Copyright (C) Andrew Tridgell 2001 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19*/ 20 21#define NO_SYSLOG 22 23#include "includes.h" 24 25/**************************************************************************** 26send an ack for an oplock break request 27****************************************************************************/ 28BOOL cli_oplock_ack(struct cli_state *cli, int fnum, unsigned char level) 29{ 30 char *oldbuf = cli->outbuf; 31 pstring buf; 32 BOOL ret; 33 34 cli->outbuf = buf; 35 36 memset(buf,'\0',smb_size); 37 set_message(buf,8,0,True); 38 39 SCVAL(buf,smb_com,SMBlockingX); 40 SSVAL(buf,smb_tid, cli->cnum); 41 cli_setup_packet(cli); 42 SSVAL(buf,smb_vwv0,0xFF); 43 SSVAL(buf,smb_vwv1,0); 44 SSVAL(buf,smb_vwv2,fnum); 45 if (level == 1) 46 SSVAL(buf,smb_vwv3,0x102); /* levelII oplock break ack */ 47 else 48 SSVAL(buf,smb_vwv3,2); /* exclusive oplock break ack */ 49 SIVAL(buf,smb_vwv4,0); /* timoeut */ 50 SSVAL(buf,smb_vwv6,0); /* unlockcount */ 51 SSVAL(buf,smb_vwv7,0); /* lockcount */ 52 53 ret = cli_send_smb(cli); 54 55 cli->outbuf = oldbuf; 56 57 return ret; 58} 59 60 61/**************************************************************************** 62set the oplock handler for a connection 63****************************************************************************/ 64void cli_oplock_handler(struct cli_state *cli, 65 BOOL (*handler)(struct cli_state *, int, unsigned char)) 66{ 67 cli->oplock_handler = handler; 68} 69