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