| 1 | /*
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| 2 | Unix SMB/CIFS implementation.
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| 3 |
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| 4 | SMB2 client oplock break handling
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| 5 |
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| 6 | Copyright (C) Stefan Metzmacher 2008
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| 7 |
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| 8 | This program is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 3 of the License, or
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| 11 | (at your option) any later version.
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| 12 |
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| 13 | This program is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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| 20 | */
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| 21 |
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| 22 | #include "includes.h"
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| 23 | #include "libcli/smb2/smb2.h"
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| 24 | #include "libcli/smb2/smb2_calls.h"
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| 25 |
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| 26 | /*
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| 27 | send a break request
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| 28 | */
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| 29 | struct smb2_request *smb2_break_send(struct smb2_tree *tree, struct smb2_break *io)
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| 30 | {
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| 31 | struct smb2_request *req;
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| 32 |
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| 33 | req = smb2_request_init_tree(tree, SMB2_OP_BREAK, 0x18, false, 0);
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| 34 | if (req == NULL) return NULL;
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| 35 |
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| 36 | SCVAL(req->out.body, 0x02, io->in.oplock_level);
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| 37 | SCVAL(req->out.body, 0x03, io->in.reserved);
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| 38 | SIVAL(req->out.body, 0x04, io->in.reserved2);
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| 39 | smb2_push_handle(req->out.body+0x08, &io->in.file.handle);
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| 40 |
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| 41 | smb2_transport_send(req);
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| 42 |
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| 43 | return req;
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| 44 | }
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| 45 |
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| 46 |
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| 47 | /*
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| 48 | recv a break reply
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| 49 | */
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| 50 | NTSTATUS smb2_break_recv(struct smb2_request *req, struct smb2_break *io)
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| 51 | {
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| 52 | if (!smb2_request_receive(req) ||
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| 53 | !smb2_request_is_ok(req)) {
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| 54 | return smb2_request_destroy(req);
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| 55 | }
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| 56 |
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| 57 | SMB2_CHECK_PACKET_RECV(req, 0x18, false);
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| 58 |
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| 59 | io->out.oplock_level = CVAL(req->in.body, 0x02);
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| 60 | io->out.reserved = CVAL(req->in.body, 0x03);
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| 61 | io->out.reserved2 = IVAL(req->in.body, 0x04);
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| 62 | smb2_pull_handle(req->in.body+0x08, &io->out.file.handle);
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| 63 |
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| 64 | return smb2_request_destroy(req);
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| 65 | }
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| 66 |
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| 67 | /*
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| 68 | sync flush request
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| 69 | */
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| 70 | NTSTATUS smb2_break(struct smb2_tree *tree, struct smb2_break *io)
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| 71 | {
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| 72 | struct smb2_request *req = smb2_break_send(tree, io);
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| 73 | return smb2_break_recv(req, io);
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| 74 | }
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