smb_create.c revision 9fb67ea305c66b6a297583b9b0db6796b0dfe497
/*
* 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 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <smbsrv/smb_kproto.h>
#define SMB_CREATE_NAMEBUF_SZ 16
/*
* Create a new file, or truncate an existing file to zero length,
* open the file and return a fid. The file is specified using a
* fully qualified name relative to the tree.
*/
smb_sdrc_t
smb_pre_create(smb_request_t *sr)
{
struct open_param *op = &sr->arg.open;
int rc;
bzero(op, sizeof (sr->arg.open));
rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec);
if (rc == 0)
rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
op->create_disposition = FILE_OVERWRITE_IF;
op->create_options = FILE_NON_DIRECTORY_FILE;
DTRACE_SMB_2(op__Create__start, smb_request_t *, sr,
struct open_param *, op);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
void
smb_post_create(smb_request_t *sr)
{
DTRACE_SMB_1(op__Create__done, smb_request_t *, sr);
}
smb_sdrc_t
smb_com_create(smb_request_t *sr)
{
if (smb_common_create(sr) != NT_STATUS_SUCCESS)
return (SDRC_ERROR);
if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0))
return (SDRC_ERROR);
return (SDRC_SUCCESS);
}
/*
* Create a new file and return a fid. The file is specified using
* a fully qualified name relative to the tree.
*/
smb_sdrc_t
smb_pre_create_new(smb_request_t *sr)
{
struct open_param *op = &sr->arg.open;
int rc;
bzero(op, sizeof (sr->arg.open));
rc = smbsr_decode_vwv(sr, "wl", &op->dattr, &op->mtime.tv_sec);
if (rc == 0)
rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
op->create_disposition = FILE_CREATE;
DTRACE_SMB_2(op__CreateNew__start, smb_request_t *, sr,
struct open_param *, op);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
void
smb_post_create_new(smb_request_t *sr)
{
DTRACE_SMB_1(op__CreateNew__done, smb_request_t *, sr);
}
smb_sdrc_t
smb_com_create_new(smb_request_t *sr)
{
if (smb_common_create(sr) != NT_STATUS_SUCCESS)
return (SDRC_ERROR);
if (smbsr_encode_result(sr, 1, 0, "bww", 1, sr->smb_fid, 0))
return (SDRC_ERROR);
return (SDRC_SUCCESS);
}
/*
* Create a unique file in the specified directory relative to the
* current tree. No attributes are specified.
*/
smb_sdrc_t
smb_pre_create_temporary(smb_request_t *sr)
{
struct open_param *op = &sr->arg.open;
uint16_t reserved;
int rc;
bzero(op, sizeof (sr->arg.open));
rc = smbsr_decode_vwv(sr, "wl", &reserved, &op->mtime.tv_sec);
if (rc == 0)
rc = smbsr_decode_data(sr, "%S", sr, &op->fqi.fq_path.pn_path);
op->create_disposition = FILE_CREATE;
DTRACE_SMB_2(op__CreateTemporary__start, smb_request_t *, sr,
struct open_param *, op);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
void
smb_post_create_temporary(smb_request_t *sr)
{
DTRACE_SMB_1(op__CreateTemporary__done, smb_request_t *, sr);
}
smb_sdrc_t
smb_com_create_temporary(smb_request_t *sr)
{
static uint16_t tmp_id = 10000;
struct open_param *op = &sr->arg.open;
char name[SMB_CREATE_NAMEBUF_SZ];
char *buf;
uint16_t bcc;
++tmp_id;
bcc = 1; /* null terminator */
bcc += snprintf(name, SMB_CREATE_NAMEBUF_SZ, "tt%05d.tmp", tmp_id);
buf = smb_srm_zalloc(sr, MAXPATHLEN);
(void) snprintf(buf, MAXPATHLEN, "%s\\%s",
op->fqi.fq_path.pn_path, name);
op->fqi.fq_path.pn_path = buf;
if (smb_common_create(sr) != NT_STATUS_SUCCESS)
return (SDRC_ERROR);
if (smbsr_encode_result(sr, 1, VAR_BCC, "bww%S", 1, sr->smb_fid,
VAR_BCC, sr, name))
return (SDRC_ERROR);
return (SDRC_SUCCESS);
}
/*
* Common create file function. The file is opened in compatibility
* mode with read/write access.
*/
uint32_t
smb_common_create(smb_request_t *sr)
{
struct open_param *op = &sr->arg.open;
uint32_t status;
if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX))
op->mtime.tv_sec = smb_time_local_to_gmt(sr, op->mtime.tv_sec);
op->mtime.tv_nsec = 0;
op->dsize = 0;
op->omode = SMB_DA_ACCESS_READ_WRITE | SMB_DA_SHARE_COMPATIBILITY;
op->desired_access = smb_omode_to_amask(op->omode);
op->share_access = smb_denymode_to_sharemode(op->omode,
op->fqi.fq_path.pn_path);
if (sr->smb_flg & SMB_FLAGS_OPLOCK) {
if (sr->smb_flg & SMB_FLAGS_OPLOCK_NOTIFY_ANY)
op->op_oplock_level = SMB_OPLOCK_BATCH;
else
op->op_oplock_level = SMB_OPLOCK_EXCLUSIVE;
} else {
op->op_oplock_level = SMB_OPLOCK_NONE;
}
status = smb_common_open(sr);
if (op->op_oplock_level == SMB_OPLOCK_NONE) {
sr->smb_flg &=
~(SMB_FLAGS_OPLOCK | SMB_FLAGS_OPLOCK_NOTIFY_ANY);
}
return (status);
}