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/*
Unix SMB/CIFS implementation.
SMB2 client negprot handling
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/smb2/smb2.h"
#include "libcli/smb2/smb2_calls.h"
/*
send a negprot request
*/
struct smb2_request *smb2_negprot_send(struct smb2_transport *transport,
struct smb2_negprot *io)
{
struct smb2_request *req;
req = smb2_request_init(transport, SMB2_OP_NEGPROT, 0x26, False, 0);
if (req == NULL) return NULL;
/* this seems to be a bug, they use 0x24 but the length is 0x26 */
SSVAL(req->out.body, 0x00, 0x24);
SSVAL(req->out.body, 0x02, io->in.unknown1);
memcpy(req->out.body+0x04, io->in.unknown2, 32);
SSVAL(req->out.body, 0x24, io->in.unknown3);
smb2_transport_send(req);
return req;
}
/*
recv a negprot reply
*/
NTSTATUS smb2_negprot_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
struct smb2_negprot *io)
{
NTSTATUS status;
if (!smb2_request_receive(req) ||
smb2_request_is_error(req)) {
return smb2_request_destroy(req);
}
SMB2_CHECK_PACKET_RECV(req, 0x40, True);
io->out._pad = SVAL(req->in.body, 0x02);
io->out.unknown2 = IVAL(req->in.body, 0x04);
memcpy(io->out.sessid, req->in.body + 0x08, 16);
io->out.unknown3 = IVAL(req->in.body, 0x18);
io->out.unknown4 = SVAL(req->in.body, 0x1C);
io->out.unknown5 = IVAL(req->in.body, 0x1E);
io->out.unknown6 = IVAL(req->in.body, 0x22);
io->out.unknown7 = SVAL(req->in.body, 0x26);
io->out.current_time = smbcli_pull_nttime(req->in.body, 0x28);
io->out.boot_time = smbcli_pull_nttime(req->in.body, 0x30);
status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x38, &io->out.secblob);
if (!NT_STATUS_IS_OK(status)) {
smb2_request_destroy(req);
return status;
}
io->out.unknown9 = IVAL(req->in.body, 0x3C);
return smb2_request_destroy(req);
}
/*
sync negprot request
*/
NTSTATUS smb2_negprot(struct smb2_transport *transport,
TALLOC_CTX *mem_ctx, struct smb2_negprot *io)
{
struct smb2_request *req = smb2_negprot_send(transport, io);
return smb2_negprot_recv(req, mem_ctx, io);
}
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