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Unix SMB/CIFS implementation.
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NT transaction handling
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Copyright (C) Andrew Tridgell 2003
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Copyright (C) James J Myers 2003 <myersjj@samba.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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This file handles the parsing of transact2 requests
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#include "smb_server/smb_server.h"
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#include "ntvfs/ntvfs.h"
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#include "libcli/raw/libcliraw.h"
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#include "libcli/raw/raw_proto.h"
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#include "librpc/gen_ndr/ndr_security.h"
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hold the state of a nttrans op while in progress. Needed to allow for async backend
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struct smb_nttrans *trans;
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NTSTATUS (*send_fn)(struct nttrans_op *);
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/* setup a nttrans reply, given the data and params sizes */
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static NTSTATUS nttrans_setup_reply(struct nttrans_op *op,
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struct smb_nttrans *trans,
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uint32_t param_size, uint32_t data_size,
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trans->out.setup_count = setup_count;
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if (setup_count != 0) {
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trans->out.setup = talloc_zero_array(op, uint8_t, setup_count*2);
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NT_STATUS_HAVE_NO_MEMORY(trans->out.setup);
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trans->out.params = data_blob_talloc(op, NULL, param_size);
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if (param_size != 0) {
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NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data);
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trans->out.data = data_blob_talloc(op, NULL, data_size);
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NT_STATUS_HAVE_NO_MEMORY(trans->out.data.data);
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send a nttrans create reply
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static NTSTATUS nttrans_create_send(struct nttrans_op *op)
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union smb_open *io = talloc_get_type(op->op_info, union smb_open);
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status = nttrans_setup_reply(op, op->trans, 69, 0, 0);
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NT_STATUS_NOT_OK_RETURN(status);
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params = op->trans->out.params.data;
77
SSVAL(params, 0, io->ntcreatex.out.oplock_level);
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smbsrv_push_fnum(params, 2, io->ntcreatex.out.file.ntvfs);
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SIVAL(params, 4, io->ntcreatex.out.create_action);
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SIVAL(params, 8, 0); /* ea error offset */
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push_nttime(params, 12, io->ntcreatex.out.create_time);
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push_nttime(params, 20, io->ntcreatex.out.access_time);
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push_nttime(params, 28, io->ntcreatex.out.write_time);
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push_nttime(params, 36, io->ntcreatex.out.change_time);
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SIVAL(params, 44, io->ntcreatex.out.attrib);
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SBVAL(params, 48, io->ntcreatex.out.alloc_size);
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SBVAL(params, 56, io->ntcreatex.out.size);
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SSVAL(params, 64, io->ntcreatex.out.file_type);
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SSVAL(params, 66, io->ntcreatex.out.ipc_state);
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SCVAL(params, 68, io->ntcreatex.out.is_directory);
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parse NTTRANS_CREATE request
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static NTSTATUS nttrans_create(struct smbsrv_request *req,
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struct nttrans_op *op)
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struct smb_nttrans *trans = op->trans;
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uint32_t sd_length, ea_length;
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enum ndr_err_code ndr_err;
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if (trans->in.params.length < 54) {
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return NT_STATUS_INVALID_PARAMETER;
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/* parse the request */
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io = talloc(op, union smb_open);
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NT_STATUS_HAVE_NO_MEMORY(io);
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io->ntcreatex.level = RAW_OPEN_NTTRANS_CREATE;
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params = trans->in.params.data;
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io->ntcreatex.in.flags = IVAL(params, 0);
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io->ntcreatex.in.root_fid = IVAL(params, 4);
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io->ntcreatex.in.access_mask = IVAL(params, 8);
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io->ntcreatex.in.alloc_size = BVAL(params, 12);
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io->ntcreatex.in.file_attr = IVAL(params, 20);
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io->ntcreatex.in.share_access = IVAL(params, 24);
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io->ntcreatex.in.open_disposition = IVAL(params, 28);
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io->ntcreatex.in.create_options = IVAL(params, 32);
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sd_length = IVAL(params, 36);
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ea_length = IVAL(params, 40);
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fname_len = IVAL(params, 44);
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io->ntcreatex.in.impersonation = IVAL(params, 48);
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io->ntcreatex.in.security_flags = CVAL(params, 52);
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io->ntcreatex.in.sec_desc = NULL;
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io->ntcreatex.in.ea_list = NULL;
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io->ntcreatex.in.query_maximal_access = false;
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req_pull_string(&req->in.bufinfo, &io->ntcreatex.in.fname,
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MIN(fname_len+1, trans->in.params.length - 53),
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STR_NO_RANGE_CHECK | STR_TERMINATE);
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if (!io->ntcreatex.in.fname) {
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return NT_STATUS_INVALID_PARAMETER;
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if (sd_length > trans->in.data.length ||
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ea_length > trans->in.data.length ||
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(sd_length+ea_length) > trans->in.data.length) {
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return NT_STATUS_INVALID_PARAMETER;
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/* this call has an optional security descriptor */
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if (sd_length != 0) {
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blob.data = trans->in.data.data;
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blob.length = sd_length;
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io->ntcreatex.in.sec_desc = talloc(io, struct security_descriptor);
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if (io->ntcreatex.in.sec_desc == NULL) {
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return NT_STATUS_NO_MEMORY;
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ndr_err = ndr_pull_struct_blob(&blob, io, NULL,
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io->ntcreatex.in.sec_desc,
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(ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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return ndr_map_error2ntstatus(ndr_err);
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/* and an optional ea_list */
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blob.data = trans->in.data.data + sd_length;
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blob.length = ea_length;
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io->ntcreatex.in.ea_list = talloc(io, struct smb_ea_list);
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if (io->ntcreatex.in.ea_list == NULL) {
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return NT_STATUS_NO_MEMORY;
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status = ea_pull_list_chained(&blob, io,
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&io->ntcreatex.in.ea_list->num_eas,
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&io->ntcreatex.in.ea_list->eas);
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if (!NT_STATUS_IS_OK(status)) {
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op->send_fn = nttrans_create_send;
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return ntvfs_open(req->ntvfs, io);
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send NTTRANS_QUERY_SEC_DESC reply
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static NTSTATUS nttrans_query_sec_desc_send(struct nttrans_op *op)
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union smb_fileinfo *io = talloc_get_type(op->op_info, union smb_fileinfo);
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enum ndr_err_code ndr_err;
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status = nttrans_setup_reply(op, op->trans, 4, 0, 0);
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NT_STATUS_NOT_OK_RETURN(status);
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params = op->trans->out.params.data;
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ndr_err = ndr_push_struct_blob(&op->trans->out.data, op, NULL,
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io->query_secdesc.out.sd,
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(ndr_push_flags_fn_t)ndr_push_security_descriptor);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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return ndr_map_error2ntstatus(ndr_err);
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SIVAL(params, 0, op->trans->out.data.length);
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parse NTTRANS_QUERY_SEC_DESC request
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static NTSTATUS nttrans_query_sec_desc(struct smbsrv_request *req,
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struct nttrans_op *op)
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struct smb_nttrans *trans = op->trans;
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union smb_fileinfo *io;
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if (trans->in.params.length < 8) {
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return NT_STATUS_INVALID_PARAMETER;
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/* parse the request */
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io = talloc(op, union smb_fileinfo);
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NT_STATUS_HAVE_NO_MEMORY(io);
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io->query_secdesc.level = RAW_FILEINFO_SEC_DESC;
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io->query_secdesc.in.file.ntvfs = smbsrv_pull_fnum(req, trans->in.params.data, 0);
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io->query_secdesc.in.secinfo_flags = IVAL(trans->in.params.data, 4);
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op->send_fn = nttrans_query_sec_desc_send;
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SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(io->query_secdesc.in.file.ntvfs);
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return ntvfs_qfileinfo(req->ntvfs, io);
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parse NTTRANS_SET_SEC_DESC request
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static NTSTATUS nttrans_set_sec_desc(struct smbsrv_request *req,
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struct nttrans_op *op)
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struct smb_nttrans *trans = op->trans;
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union smb_setfileinfo *io;
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enum ndr_err_code ndr_err;
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if (trans->in.params.length < 8) {
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return NT_STATUS_INVALID_PARAMETER;
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/* parse the request */
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io = talloc(req, union smb_setfileinfo);
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NT_STATUS_HAVE_NO_MEMORY(io);
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io->set_secdesc.level = RAW_SFILEINFO_SEC_DESC;
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io->set_secdesc.in.file.ntvfs = smbsrv_pull_fnum(req, trans->in.params.data, 0);
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io->set_secdesc.in.secinfo_flags = IVAL(trans->in.params.data, 4);
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io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
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NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
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ndr_err = ndr_pull_struct_blob(&trans->in.data, req, NULL,
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io->set_secdesc.in.sd,
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(ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
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if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
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return ndr_map_error2ntstatus(ndr_err);
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SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(io->set_secdesc.in.file.ntvfs);
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return ntvfs_setfileinfo(req->ntvfs, io);
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/* parse NTTRANS_RENAME request
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static NTSTATUS nttrans_rename(struct smbsrv_request *req,
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struct nttrans_op *op)
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struct smb_nttrans *trans = op->trans;
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union smb_rename *io;
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if (trans->in.params.length < 5) {
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return NT_STATUS_INVALID_PARAMETER;
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/* parse the request */
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io = talloc(req, union smb_rename);
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NT_STATUS_HAVE_NO_MEMORY(io);
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io->nttrans.level = RAW_RENAME_NTTRANS;
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io->nttrans.in.file.ntvfs = smbsrv_pull_fnum(req, trans->in.params.data, 0);
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io->nttrans.in.flags = SVAL(trans->in.params.data, 2);
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smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 4,
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&io->nttrans.in.new_name,
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if (!io->nttrans.in.new_name) {
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return NT_STATUS_INVALID_PARAMETER;
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SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(io->nttrans.in.file.ntvfs);
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return ntvfs_rename(req->ntvfs, io);
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parse NTTRANS_IOCTL send
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static NTSTATUS nttrans_ioctl_send(struct nttrans_op *op)
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union smb_ioctl *info = talloc_get_type(op->op_info, union smb_ioctl);
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* we pass 0 as data_count here,
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* because we reuse the DATA_BLOB from the smb_ioctl
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status = nttrans_setup_reply(op, op->trans, 0, 0, 1);
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NT_STATUS_NOT_OK_RETURN(status);
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op->trans->out.setup[0] = 0;
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op->trans->out.data = info->ntioctl.out.blob;
341
parse NTTRANS_IOCTL request
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static NTSTATUS nttrans_ioctl(struct smbsrv_request *req,
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struct nttrans_op *op)
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struct smb_nttrans *trans = op->trans;
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/* should have at least 4 setup words */
350
if (trans->in.setup_count != 4) {
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return NT_STATUS_INVALID_PARAMETER;
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nt = talloc(op, union smb_ioctl);
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NT_STATUS_HAVE_NO_MEMORY(nt);
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nt->ntioctl.level = RAW_IOCTL_NTIOCTL;
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nt->ntioctl.in.function = IVAL(trans->in.setup, 0);
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nt->ntioctl.in.file.ntvfs = smbsrv_pull_fnum(req, (uint8_t *)trans->in.setup, 4);
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nt->ntioctl.in.fsctl = CVAL(trans->in.setup, 6);
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nt->ntioctl.in.filter = CVAL(trans->in.setup, 7);
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nt->ntioctl.in.max_data = trans->in.max_data;
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nt->ntioctl.in.blob = trans->in.data;
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op->send_fn = nttrans_ioctl_send;
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SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(nt->ntioctl.in.file.ntvfs);
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return ntvfs_ioctl(req->ntvfs, nt);
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send NTTRANS_NOTIFY_CHANGE reply
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static NTSTATUS nttrans_notify_change_send(struct nttrans_op *op)
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union smb_notify *info = talloc_get_type(op->op_info, union smb_notify);
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#define MAX_BYTES_PER_CHAR 3
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/* work out how big the reply buffer could be */
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for (i=0;i<info->nttrans.out.num_changes;i++) {
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size += 12 + 3 + (1+strlen(info->nttrans.out.changes[i].name.s)) * MAX_BYTES_PER_CHAR;
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status = nttrans_setup_reply(op, op->trans, size, 0, 0);
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NT_STATUS_NOT_OK_RETURN(status);
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p = op->trans->out.params.data;
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/* construct the changes buffer */
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for (i=0;i<info->nttrans.out.num_changes;i++) {
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SIVAL(p, 4, info->nttrans.out.changes[i].action);
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len = push_string(p + 12, info->nttrans.out.changes[i].name.s,
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op->trans->out.params.length -
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(p+12 - op->trans->out.params.data), STR_UNICODE);
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int pad = 4 - (ofs & 3);
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memset(p+ofs, 0, pad);
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if (i == info->nttrans.out.num_changes-1) {
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op->trans->out.params.length = p - op->trans->out.params.data;
428
parse NTTRANS_NOTIFY_CHANGE request
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static NTSTATUS nttrans_notify_change(struct smbsrv_request *req,
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struct nttrans_op *op)
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struct smb_nttrans *trans = op->trans;
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union smb_notify *info;
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/* should have at least 4 setup words */
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if (trans->in.setup_count != 4) {
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return NT_STATUS_INVALID_PARAMETER;
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info = talloc(op, union smb_notify);
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NT_STATUS_HAVE_NO_MEMORY(info);
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info->nttrans.level = RAW_NOTIFY_NTTRANS;
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info->nttrans.in.completion_filter = IVAL(trans->in.setup, 0);
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info->nttrans.in.file.ntvfs = smbsrv_pull_fnum(req, (uint8_t *)trans->in.setup, 4);
447
info->nttrans.in.recursive = SVAL(trans->in.setup, 6);
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info->nttrans.in.buffer_size = trans->in.max_param;
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op->send_fn = nttrans_notify_change_send;
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SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(info->nttrans.in.file.ntvfs);
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return ntvfs_notify(req->ntvfs, info);
458
backend for nttrans requests
460
static NTSTATUS nttrans_backend(struct smbsrv_request *req,
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struct nttrans_op *op)
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/* the nttrans command is in function */
464
switch (op->trans->in.function) {
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case NT_TRANSACT_CREATE:
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return nttrans_create(req, op);
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case NT_TRANSACT_IOCTL:
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return nttrans_ioctl(req, op);
469
case NT_TRANSACT_RENAME:
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return nttrans_rename(req, op);
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case NT_TRANSACT_QUERY_SECURITY_DESC:
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return nttrans_query_sec_desc(req, op);
473
case NT_TRANSACT_SET_SECURITY_DESC:
474
return nttrans_set_sec_desc(req, op);
475
case NT_TRANSACT_NOTIFY_CHANGE:
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return nttrans_notify_change(req, op);
479
/* an unknown nttrans command */
480
return NT_STATUS_DOS(ERRSRV, ERRerror);
484
static void reply_nttrans_send(struct ntvfs_request *ntvfs)
486
struct smbsrv_request *req;
487
uint32_t params_left, data_left;
488
uint8_t *params, *data;
489
struct smb_nttrans *trans;
490
struct nttrans_op *op;
492
SMBSRV_CHECK_ASYNC_STATUS(op, struct nttrans_op);
496
/* if this function needs work to form the nttrans reply buffer, then
498
if (op->send_fn != NULL) {
500
status = op->send_fn(op);
501
if (!NT_STATUS_IS_OK(status)) {
502
smbsrv_send_error(req, status);
507
smbsrv_setup_reply(req, 18 + trans->out.setup_count, 0);
509
/* note that we don't check the max_setup count (matching w2k3
512
if (trans->out.params.length > trans->in.max_param) {
513
smbsrv_setup_error(req, NT_STATUS_BUFFER_TOO_SMALL);
514
trans->out.params.length = trans->in.max_param;
516
if (trans->out.data.length > trans->in.max_data) {
517
smbsrv_setup_error(req, NT_STATUS_BUFFER_TOO_SMALL);
518
trans->out.data.length = trans->in.max_data;
521
params_left = trans->out.params.length;
522
data_left = trans->out.data.length;
523
params = trans->out.params.data;
524
data = trans->out.data.data;
526
/* we need to divide up the reply into chunks that fit into
527
the negotiated buffer size */
529
uint32_t this_data, this_param, max_bytes;
530
uint_t align1 = 1, align2 = (params_left ? 2 : 0);
531
struct smbsrv_request *this_req;
533
max_bytes = req_max_data(req) - (align1 + align2);
535
this_param = params_left;
536
if (this_param > max_bytes) {
537
this_param = max_bytes;
539
max_bytes -= this_param;
541
this_data = data_left;
542
if (this_data > max_bytes) {
543
this_data = max_bytes;
546
/* don't destroy unless this is the last chunk */
547
if (params_left - this_param != 0 ||
548
data_left - this_data != 0) {
549
this_req = smbsrv_setup_secondary_request(req);
554
req_grow_data(this_req, this_param + this_data + (align1 + align2));
556
SSVAL(this_req->out.vwv, 0, 0); /* reserved */
557
SCVAL(this_req->out.vwv, 2, 0); /* reserved */
558
SIVAL(this_req->out.vwv, 3, trans->out.params.length);
559
SIVAL(this_req->out.vwv, 7, trans->out.data.length);
561
SIVAL(this_req->out.vwv, 11, this_param);
562
SIVAL(this_req->out.vwv, 15, align1 + PTR_DIFF(this_req->out.data, this_req->out.hdr));
563
SIVAL(this_req->out.vwv, 19, PTR_DIFF(params, trans->out.params.data));
565
SIVAL(this_req->out.vwv, 23, this_data);
566
SIVAL(this_req->out.vwv, 27, align1 + align2 +
567
PTR_DIFF(this_req->out.data + this_param, this_req->out.hdr));
568
SIVAL(this_req->out.vwv, 31, PTR_DIFF(data, trans->out.data.data));
570
SCVAL(this_req->out.vwv, 35, trans->out.setup_count);
571
memcpy((char *)(this_req->out.vwv) + VWV(18), trans->out.setup,
572
sizeof(uint16_t) * trans->out.setup_count);
573
memset(this_req->out.data, 0, align1);
574
if (this_param != 0) {
575
memcpy(this_req->out.data + align1, params, this_param);
577
memset(this_req->out.data+this_param+align1, 0, align2);
578
if (this_data != 0) {
579
memcpy(this_req->out.data+this_param+align1+align2,
583
params_left -= this_param;
584
data_left -= this_data;
585
params += this_param;
588
smbsrv_send_reply(this_req);
589
} while (params_left != 0 || data_left != 0);
593
send a continue request
595
static void reply_nttrans_continue(struct smbsrv_request *req, struct smb_nttrans *trans)
597
struct smbsrv_request *req2;
598
struct smbsrv_trans_partial *tp;
601
/* make sure they don't flood us */
602
for (count=0,tp=req->smb_conn->trans_partial;tp;tp=tp->next) count++;
604
smbsrv_send_error(req, NT_STATUS_INSUFFICIENT_RESOURCES);
608
tp = talloc(req, struct smbsrv_trans_partial);
611
tp->u.nttrans = trans;
612
tp->command = SMBnttrans;
614
DLIST_ADD(req->smb_conn->trans_partial, tp);
615
talloc_set_destructor(tp, smbsrv_trans_partial_destructor);
617
req2 = smbsrv_setup_secondary_request(req);
619
/* send a 'please continue' reply */
620
smbsrv_setup_reply(req2, 0, 0);
621
smbsrv_send_reply(req2);
626
answer a reconstructed trans request
628
static void reply_nttrans_complete(struct smbsrv_request *req, struct smb_nttrans *trans)
630
struct nttrans_op *op;
632
SMBSRV_TALLOC_IO_PTR(op, struct nttrans_op);
633
SMBSRV_SETUP_NTVFS_REQUEST(reply_nttrans_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
639
/* its a full request, give it to the backend */
640
ZERO_STRUCT(trans->out);
641
SMBSRV_CALL_NTVFS_BACKEND(nttrans_backend(req, op));
645
/****************************************************************************
646
Reply to an SMBnttrans request
647
****************************************************************************/
648
void smbsrv_reply_nttrans(struct smbsrv_request *req)
650
struct smb_nttrans *trans;
651
uint32_t param_ofs, data_ofs;
652
uint32_t param_count, data_count;
653
uint32_t param_total, data_total;
656
if (req->in.wct < 19) {
657
smbsrv_send_error(req, NT_STATUS_FOOBAR);
661
trans = talloc(req, struct smb_nttrans);
663
smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
667
trans->in.max_setup = CVAL(req->in.vwv, 0);
668
param_total = IVAL(req->in.vwv, 3);
669
data_total = IVAL(req->in.vwv, 7);
670
trans->in.max_param = IVAL(req->in.vwv, 11);
671
trans->in.max_data = IVAL(req->in.vwv, 15);
672
param_count = IVAL(req->in.vwv, 19);
673
param_ofs = IVAL(req->in.vwv, 23);
674
data_count = IVAL(req->in.vwv, 27);
675
data_ofs = IVAL(req->in.vwv, 31);
676
trans->in.setup_count= CVAL(req->in.vwv, 35);
677
trans->in.function = SVAL(req->in.vwv, 36);
679
if (req->in.wct != 19 + trans->in.setup_count) {
680
smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror));
684
/* parse out the setup words */
685
trans->in.setup = talloc_array(req, uint8_t, trans->in.setup_count*2);
686
if (!trans->in.setup) {
687
smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
690
memcpy(trans->in.setup, (char *)(req->in.vwv) + VWV(19),
691
sizeof(uint16_t) * trans->in.setup_count);
693
if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, &trans->in.params) ||
694
!req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &trans->in.data)) {
695
smbsrv_send_error(req, NT_STATUS_FOOBAR);
699
/* is it a partial request? if so, then send a 'send more' message */
700
if (param_total > param_count || data_total > data_count) {
701
reply_nttrans_continue(req, trans);
705
reply_nttrans_complete(req, trans);
709
/****************************************************************************
710
Reply to an SMBnttranss request
711
****************************************************************************/
712
void smbsrv_reply_nttranss(struct smbsrv_request *req)
714
struct smbsrv_trans_partial *tp;
715
struct smb_nttrans *trans = NULL;
716
uint32_t param_ofs, data_ofs;
717
uint32_t param_count, data_count;
718
uint32_t param_disp, data_disp;
719
uint32_t param_total, data_total;
720
DATA_BLOB params, data;
723
if (req->in.wct != 18) {
724
smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror));
728
for (tp=req->smb_conn->trans_partial;tp;tp=tp->next) {
729
if (tp->command == SMBnttrans &&
730
SVAL(tp->req->in.hdr, HDR_MID) == SVAL(req->in.hdr, HDR_MID)) {
731
/* TODO: check the VUID, PID and TID too? */
737
smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
741
trans = tp->u.nttrans;
743
param_total = IVAL(req->in.vwv, 3);
744
data_total = IVAL(req->in.vwv, 7);
745
param_count = IVAL(req->in.vwv, 11);
746
param_ofs = IVAL(req->in.vwv, 15);
747
param_disp = IVAL(req->in.vwv, 19);
748
data_count = IVAL(req->in.vwv, 23);
749
data_ofs = IVAL(req->in.vwv, 27);
750
data_disp = IVAL(req->in.vwv, 31);
752
if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, ¶ms) ||
753
!req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &data)) {
754
smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
758
/* only allow contiguous requests */
759
if ((param_count != 0 &&
760
param_disp != trans->in.params.length) ||
762
data_disp != trans->in.data.length)) {
763
smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
767
/* add to the existing request */
768
if (param_count != 0) {
769
trans->in.params.data = talloc_realloc(trans,
770
trans->in.params.data,
772
param_disp + param_count);
773
if (trans->in.params.data == NULL) {
774
smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY);
777
trans->in.params.length = param_disp + param_count;
780
if (data_count != 0) {
781
trans->in.data.data = talloc_realloc(trans,
784
data_disp + data_count);
785
if (trans->in.data.data == NULL) {
786
smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY);
789
trans->in.data.length = data_disp + data_count;
792
memcpy(trans->in.params.data + param_disp, params.data, params.length);
793
memcpy(trans->in.data.data + data_disp, data.data, data.length);
795
/* the sequence number of the reply is taken from the last secondary
797
tp->req->seq_num = req->seq_num;
799
/* we don't reply to Transs2 requests */
802
if (trans->in.params.length == param_total &&
803
trans->in.data.length == data_total) {
804
/* its now complete */
807
reply_nttrans_complete(req, trans);