1/* 2 Unix SMB/CIFS implementation. 3 4 SMB2 client oplock break handling 5 6 Copyright (C) Stefan Metzmacher 2008 7 8 This program is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. 20*/ 21 22#include "includes.h" 23#include "libcli/smb2/smb2.h" 24#include "libcli/smb2/smb2_calls.h" 25 26/* 27 send a break request 28*/ 29struct smb2_request *smb2_break_send(struct smb2_tree *tree, struct smb2_break *io) 30{ 31 struct smb2_request *req; 32 33 req = smb2_request_init_tree(tree, SMB2_OP_BREAK, 0x18, false, 0); 34 if (req == NULL) return NULL; 35 36 SCVAL(req->out.body, 0x02, io->in.oplock_level); 37 SCVAL(req->out.body, 0x03, io->in.reserved); 38 SIVAL(req->out.body, 0x04, io->in.reserved2); 39 smb2_push_handle(req->out.body+0x08, &io->in.file.handle); 40 41 smb2_transport_send(req); 42 43 return req; 44} 45 46 47/* 48 recv a break reply 49*/ 50NTSTATUS smb2_break_recv(struct smb2_request *req, struct smb2_break *io) 51{ 52 if (!smb2_request_receive(req) || 53 !smb2_request_is_ok(req)) { 54 return smb2_request_destroy(req); 55 } 56 57 SMB2_CHECK_PACKET_RECV(req, 0x18, false); 58 59 io->out.oplock_level = CVAL(req->in.body, 0x02); 60 io->out.reserved = CVAL(req->in.body, 0x03); 61 io->out.reserved2 = IVAL(req->in.body, 0x04); 62 smb2_pull_handle(req->in.body+0x08, &io->out.file.handle); 63 64 return smb2_request_destroy(req); 65} 66 67/* 68 sync flush request 69*/ 70NTSTATUS smb2_break(struct smb2_tree *tree, struct smb2_break *io) 71{ 72 struct smb2_request *req = smb2_break_send(tree, io); 73 return smb2_break_recv(req, io); 74} 75