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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2017 Nexenta Systems, Inc. All rights reserved.
*/
/*
* This command is used to create or open a file or directory, when EAs
* or an SD must be applied to the file. The functionality is similar
* to SmbNtCreateAndx with the option to supply extended attributes or
* a security descriptor.
*
* Note: we don't decode the extended attributes because we don't
* support them at this time.
*/
#include <smbsrv/smb_kproto.h>
#include <smbsrv/smb_fsops.h>
extern int smb_nt_create_enable_extended_response;
/*
* smb_nt_transact_create
*
* This command is used to create or open a file or directory, when EAs
* or an SD must be applied to the file. The request parameter block
* encoding, data block encoding and output parameter block encoding are
* described in CIFS section 4.2.2.
*
* The format of the command is SmbNtTransact but it is basically the same
* as SmbNtCreateAndx with the option to supply extended attributes or a
* security descriptor. For information not defined in CIFS section 4.2.2
* see section 4.2.1 (NT_CREATE_ANDX).
*/
smb_sdrc_t
smb_pre_nt_transact_create(smb_request_t *sr, smb_xa_t *xa)
{
struct open_param *op = &sr->arg.open;
uint8_t SecurityFlags;
uint32_t EaLength;
uint32_t ImpersonationLevel;
uint32_t NameLength;
uint32_t sd_len;
uint32_t status;
smb_sd_t sd;
int rc;
bzero(op, sizeof (sr->arg.open));
rc = smb_mbc_decodef(&xa->req_param_mb, "%lllqllllllllb",
sr,
&op->nt_flags,
&op->rootdirfid,
&op->desired_access,
&op->dsize,
&op->dattr,
&op->share_access,
&op->create_disposition,
&op->create_options,
&sd_len,
&EaLength,
&NameLength,
&ImpersonationLevel,
&SecurityFlags);
if (rc == 0) {
if (NameLength == 0) {
op->fqi.fq_path.pn_path = "\\";
} else if (NameLength >= SMB_MAXPATHLEN) {
smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
ERRDOS, ERROR_INVALID_NAME);
rc = -1;
} else {
rc = smb_mbc_decodef(&xa->req_param_mb, "%#u",
sr, NameLength, &op->fqi.fq_path.pn_path);
}
}
op->op_oplock_level = SMB_OPLOCK_NONE;
if (op->nt_flags & NT_CREATE_FLAG_REQUEST_OPLOCK) {
if (op->nt_flags & NT_CREATE_FLAG_REQUEST_OPBATCH)
op->op_oplock_level = SMB_OPLOCK_BATCH;
else
op->op_oplock_level = SMB_OPLOCK_EXCLUSIVE;
}
if (sd_len) {
status = smb_decode_sd(&xa->req_data_mb, &sd);
if (status != NT_STATUS_SUCCESS) {
smbsr_error(sr, status, 0, 0);
return (SDRC_ERROR);
}
op->sd = kmem_alloc(sizeof (smb_sd_t), KM_SLEEP);
*op->sd = sd;
} else {
op->sd = NULL;
}
DTRACE_SMB_START(op__NtTransactCreate, smb_request_t *, sr);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
void
smb_post_nt_transact_create(smb_request_t *sr, smb_xa_t *xa)
{
smb_sd_t *sd = sr->arg.open.sd;
_NOTE(ARGUNUSED(xa))
DTRACE_SMB_DONE(op__NtTransactCreate, smb_request_t *, sr);
if (sd) {
smb_sd_term(sd);
kmem_free(sd, sizeof (smb_sd_t));
}
if (sr->arg.open.dir != NULL) {
smb_ofile_release(sr->arg.open.dir);
sr->arg.open.dir = NULL;
}
}
/*
* A lot like smb_com_nt_create_andx
*/
smb_sdrc_t
smb_nt_transact_create(smb_request_t *sr, smb_xa_t *xa)
{
struct open_param *op = &sr->arg.open;
smb_attr_t *ap = &op->fqi.fq_fattr;
smb_ofile_t *of;
int rc;
uint8_t DirFlag;
uint32_t status;
if (op->create_options & ~SMB_NTCREATE_VALID_OPTIONS) {
smbsr_error(sr, NT_STATUS_INVALID_PARAMETER,
ERRDOS, ERROR_INVALID_PARAMETER);
return (SDRC_ERROR);
}
if (op->create_options & FILE_OPEN_BY_FILE_ID) {
smbsr_error(sr, NT_STATUS_NOT_SUPPORTED,
ERRDOS, ERROR_NOT_SUPPORTED);
return (SDRC_ERROR);
}
if ((op->create_options & FILE_DELETE_ON_CLOSE) &&
!(op->desired_access & DELETE)) {
smbsr_error(sr, NT_STATUS_INVALID_PARAMETER,
ERRDOS, ERRbadaccess);
return (SDRC_ERROR);
}
if (op->create_disposition > FILE_MAXIMUM_DISPOSITION) {
smbsr_error(sr, NT_STATUS_INVALID_PARAMETER,
ERRDOS, ERRbadaccess);
return (SDRC_ERROR);
}
if (op->dattr & FILE_FLAG_WRITE_THROUGH)
op->create_options |= FILE_WRITE_THROUGH;
if (op->dattr & FILE_FLAG_DELETE_ON_CLOSE)
op->create_options |= FILE_DELETE_ON_CLOSE;
if (op->dattr & FILE_FLAG_BACKUP_SEMANTICS)
op->create_options |= FILE_OPEN_FOR_BACKUP_INTENT;
if (op->create_options & FILE_OPEN_FOR_BACKUP_INTENT)
sr->user_cr = smb_user_getprivcred(sr->uid_user);
if (op->rootdirfid == 0) {
op->fqi.fq_dnode = sr->tid_tree->t_snode;
} else {
op->dir = smb_ofile_lookup_by_fid(sr, (uint16_t)op->rootdirfid);
if (op->dir == NULL) {
smbsr_error(sr, NT_STATUS_INVALID_HANDLE,
ERRDOS, ERRbadfid);
return (SDRC_ERROR);
}
op->fqi.fq_dnode = op->dir->f_node;
}
status = smb_common_open(sr);
if (status != NT_STATUS_SUCCESS) {
smbsr_status(sr, status, 0, 0);
return (SDRC_ERROR);
}
if (op->op_oplock_level != SMB_OPLOCK_NONE) {
/* Oplock req. in op->op_oplock_level etc. */
smb1_oplock_acquire(sr, B_TRUE);
}
/*
* NB: after the above smb_common_open() success,
* we have a handle allocated (sr->fid_ofile).
* If we don't return success, we must close it.
*/
of = sr->fid_ofile;
switch (sr->tid_tree->t_res_type & STYPE_MASK) {
case STYPE_DISKTREE:
case STYPE_PRINTQ:
if (op->create_options & FILE_DELETE_ON_CLOSE)
smb_ofile_set_delete_on_close(sr, of);
DirFlag = smb_node_is_dir(of->f_node) ? 1 : 0;
break;
case STYPE_IPC:
DirFlag = 0;
break;
default:
smbsr_error(sr, NT_STATUS_INVALID_DEVICE_REQUEST,
ERRDOS, ERROR_INVALID_FUNCTION);
goto errout;
}
if ((op->nt_flags & NT_CREATE_FLAG_EXTENDED_RESPONSE) != 0 &&
smb_nt_create_enable_extended_response != 0) {
uint32_t MaxAccess = 0;
if (of->f_node != NULL) {
smb_fsop_eaccess(sr, of->f_cr, of->f_node, &MaxAccess);
}
MaxAccess |= of->f_granted_access;
rc = smb_mbc_encodef(
&xa->rep_param_mb, "bbwllTTTTlqqwwb16.qll",
op->op_oplock_level, /* (b) */
1, /* ResponseType (b) */
sr->smb_fid, /* (w) */
op->action_taken, /* (l) */
0, /* EaErrorOffset (l) */
&ap->sa_crtime, /* (T) */
&ap->sa_vattr.va_atime, /* (T) */
&ap->sa_vattr.va_mtime, /* (T) */
&ap->sa_vattr.va_ctime, /* (T) */
op->dattr & FILE_ATTRIBUTE_MASK, /* (l) */
ap->sa_allocsz, /* (q) */
ap->sa_vattr.va_size, /* (q) */
op->ftype, /* (w) */
op->devstate, /* (w) */
DirFlag, /* (b) */
/* volume guid (16.) */
op->fileid, /* (q) */
MaxAccess, /* (l) */
0); /* guest access (l) */
} else {
rc = smb_mbc_encodef(
&xa->rep_param_mb, "bbwllTTTTlqqwwb",
op->op_oplock_level, /* (b) */
0, /* ResponseType (b) */
sr->smb_fid, /* (w) */
op->action_taken, /* (l) */
0, /* EaErrorOffset (l) */
&ap->sa_crtime, /* (T) */
&ap->sa_vattr.va_atime, /* (T) */
&ap->sa_vattr.va_mtime, /* (T) */
&ap->sa_vattr.va_ctime, /* (T) */
op->dattr & FILE_ATTRIBUTE_MASK, /* (l) */
ap->sa_allocsz, /* (q) */
ap->sa_vattr.va_size, /* (q) */
op->ftype, /* (w) */
op->devstate, /* (w) */
DirFlag); /* (b) */
}
if (rc == 0)
return (SDRC_SUCCESS);
errout:
smb_ofile_close(of, 0);
return (SDRC_ERROR);
}
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