mirror of
https://github.com/samba-team/samba.git
synced 2024-12-25 23:21:54 +03:00
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
|
|
SMB2 client read call
|
|
|
|
Copyright (C) Andrew Tridgell 2005
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include "includes.h"
|
|
#include "libcli/smb2/smb2.h"
|
|
#include "libcli/smb2/smb2_calls.h"
|
|
|
|
/*
|
|
send a read request
|
|
*/
|
|
struct smb2_request *smb2_read_send(struct smb2_tree *tree, struct smb2_read *io)
|
|
{
|
|
struct smb2_request *req;
|
|
|
|
req = smb2_request_init_tree(tree, SMB2_OP_READ, 0x30, True, 0);
|
|
if (req == NULL) return NULL;
|
|
|
|
SSVAL(req->out.body, 0x02, 0); /* pad */
|
|
SIVAL(req->out.body, 0x04, io->in.length);
|
|
SBVAL(req->out.body, 0x08, io->in.offset);
|
|
smb2_push_handle(req->out.body+0x10, &io->in.file.handle);
|
|
SBVAL(req->out.body, 0x20, io->in.unknown1);
|
|
SBVAL(req->out.body, 0x28, io->in.unknown2);
|
|
|
|
smb2_transport_send(req);
|
|
|
|
return req;
|
|
}
|
|
|
|
|
|
/*
|
|
recv a read reply
|
|
*/
|
|
NTSTATUS smb2_read_recv(struct smb2_request *req,
|
|
TALLOC_CTX *mem_ctx, struct smb2_read *io)
|
|
{
|
|
NTSTATUS status;
|
|
|
|
if (!smb2_request_receive(req) ||
|
|
!smb2_request_is_ok(req)) {
|
|
return smb2_request_destroy(req);
|
|
}
|
|
|
|
SMB2_CHECK_PACKET_RECV(req, 0x10, True);
|
|
|
|
status = smb2_pull_o16s32_blob(&req->in, mem_ctx, req->in.body+0x02, &io->out.data);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
smb2_request_destroy(req);
|
|
return status;
|
|
}
|
|
|
|
io->out.unknown1 = BVAL(req->in.body, 0x08);
|
|
|
|
return smb2_request_destroy(req);
|
|
}
|
|
|
|
/*
|
|
sync read request
|
|
*/
|
|
NTSTATUS smb2_read(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, struct smb2_read *io)
|
|
{
|
|
struct smb2_request *req = smb2_read_send(tree, io);
|
|
return smb2_read_recv(req, mem_ctx, io);
|
|
}
|