smb_directory.c revision bbf6f00c25b6a2bed23c35eac6d62998ecdb338c
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier/*
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * CDDL HEADER START
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * The contents of this file are subject to the terms of the
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Common Development and Distribution License (the "License").
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * You may not use this file except in compliance with the License.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * or http://www.opensolaris.org/os/licensing.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * See the License for the specific language governing permissions
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * and limitations under the License.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * When distributing Covered Code, include this CDDL HEADER in each
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * If applicable, add the following below this CDDL HEADER, with the
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * fields enclosed by brackets "[]" replaced with your own identifying
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * information: Portions Copyright [yyyy] [name of copyright owner]
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * CDDL HEADER END
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier/*
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Use is subject to license terms.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier#include <smbsrv/smb_kproto.h>
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier#include <smbsrv/smbinfo.h>
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier#include <smbsrv/smb_fsops.h>
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiertypedef struct smb_dirpath {
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier char *sp_path; /* Original path */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier char *sp_curp; /* Current pointer into the original path */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier smb_request_t *sp_sr; /* Current request pointer */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier} smb_dirpath_t;
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothierstatic smb_dirpath_t *smb_dirpath_new(smb_request_t *);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothierstatic int smb_dirpath_next(smb_dirpath_t *);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothierstatic boolean_t smb_dirpath_isvalid(const char *);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier/*
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * The create directory message is sent to create a new directory. The
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * appropriate Tid and additional pathname are passed. The directory must
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * not exist for it to be created.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Client Request Description
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * ================================== =================================
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * UCHAR WordCount; Count of parameter words = 0
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * USHORT ByteCount; Count of data bytes; min = 2
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * UCHAR BufferFormat; 0x04
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * STRING DirectoryName[]; Directory name
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Servers require clients to have at least create permission for the
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * subtree containing the directory in order to create a new directory.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * The creator's access rights to the new directory are be determined by
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * local policy on the server.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Server Response Description
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * ================================== =================================
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * UCHAR WordCount; Count of parameter words = 0
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * USHORT ByteCount; Count of data bytes = 0
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiersmb_sdrc_t
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiersmb_pre_create_directory(smb_request_t *sr)
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier{
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier int rc;
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier rc = smbsr_decode_data(sr, "%S", sr,
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier &sr->arg.dirop.fqi.fq_path.pn_path);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier DTRACE_SMB_2(op__CreateDirectory__start, smb_request_t *, sr,
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier struct dirop *, &sr->arg.dirop);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier}
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiervoid
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiersmb_post_create_directory(smb_request_t *sr)
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier{
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier DTRACE_SMB_1(op__CreateDirectory__done, smb_request_t *, sr);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier}
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier/*
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * smb_com_create_directory
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier *
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * It is possible to get a full pathname here and the client expects any
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * or all of the components to be created if they don't already exist.
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier */
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiersmb_sdrc_t
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothiersmb_com_create_directory(smb_request_t *sr)
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier{
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier smb_dirpath_t *spp;
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier DWORD status;
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier int rc = 0;
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier char *path = sr->arg.dirop.fqi.fq_path.pn_path;
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier ERRDOS, ERROR_ACCESS_DENIED);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier return (SDRC_ERROR);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier }
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier if (!smb_dirpath_isvalid(path)) {
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier smbsr_error(sr, NT_STATUS_OBJECT_PATH_SYNTAX_BAD,
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier ERRDOS, ERROR_BAD_PATHNAME);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier return (SDRC_ERROR);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier }
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier status = smb_validate_dirname(path);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier if (status != 0) {
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier smbsr_error(sr, status, ERRDOS, ERROR_INVALID_NAME);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier return (SDRC_ERROR);
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier }
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier /*
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * Try each component of the path. EEXIST on path
074bb90d80fdbeb2d04a8450a55ecbc96de28785Tom Pothier * components is okay except on the last one.
*/
spp = smb_dirpath_new(sr);
while (smb_dirpath_next(spp)) {
rc = smb_common_create_directory(sr);
switch (rc) {
case 0:
break;
case EEXIST:
break;
case ENOENT:
smbsr_error(sr, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERROR_FILE_NOT_FOUND);
return (SDRC_ERROR);
case ENOTDIR:
/*
* Spec says status should be OBJECT_PATH_INVALID
* but testing shows OBJECT_PATH_NOT_FOUND
*/
smbsr_error(sr, NT_STATUS_OBJECT_PATH_NOT_FOUND,
ERRDOS, ERROR_PATH_NOT_FOUND);
return (SDRC_ERROR);
default:
smbsr_errno(sr, rc);
return (SDRC_ERROR);
}
}
if (rc != 0) {
if (rc == EEXIST)
smbsr_error(sr, NT_STATUS_OBJECT_NAME_COLLISION,
ERRDOS, ERROR_FILE_EXISTS);
else
smbsr_errno(sr, rc);
return (SDRC_ERROR);
}
rc = smbsr_encode_empty_result(sr);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
/*
* smb_validate_dirname
*
* Very basic directory name validation: checks for colons in a path.
* Need to skip the drive prefix since it contains a colon.
*
* Returns NT_STATUS_SUCCESS if the name is valid,
* otherwise NT_STATUS_NOT_A_DIRECTORY.
*/
uint32_t
smb_validate_dirname(char *path)
{
char *name;
if ((name = path) != 0) {
name += strspn(name, "\\");
if (strchr(name, ':') != 0)
return (NT_STATUS_NOT_A_DIRECTORY);
}
return (NT_STATUS_SUCCESS);
}
/*
* smb_common_create_directory
*
* Currently called from:
* smb_com_create_directory
* smb_com_trans2_create_directory
*
* Returns errno values.
*/
int
smb_common_create_directory(smb_request_t *sr)
{
int rc;
smb_attr_t new_attr;
smb_fqi_t *fqi;
smb_node_t *tnode;
fqi = &sr->arg.dirop.fqi;
tnode = sr->tid_tree->t_snode;
rc = smb_pathname_reduce(sr, sr->user_cr, fqi->fq_path.pn_path,
tnode, tnode, &fqi->fq_dnode, fqi->fq_last_comp);
if (rc != 0)
return (rc);
/* lookup node - to ensure that it does NOT exist */
rc = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS,
tnode, fqi->fq_dnode, fqi->fq_last_comp, &fqi->fq_fnode);
if (rc == 0) {
smb_node_release(fqi->fq_dnode);
smb_node_release(fqi->fq_fnode);
return (EEXIST);
}
if (rc != ENOENT) {
smb_node_release(fqi->fq_dnode);
return (rc);
}
rc = smb_fsop_access(sr, sr->user_cr, fqi->fq_dnode,
FILE_ADD_SUBDIRECTORY);
if (rc != NT_STATUS_SUCCESS) {
smb_node_release(fqi->fq_dnode);
return (EACCES);
}
/*
* Explicitly set sa_dosattr, otherwise the file system may
* automatically apply FILE_ATTRIBUTE_ARCHIVE which, for
* compatibility with windows servers, should not be set.
*/
bzero(&new_attr, sizeof (new_attr));
new_attr.sa_dosattr = FILE_ATTRIBUTE_DIRECTORY;
new_attr.sa_vattr.va_type = VDIR;
new_attr.sa_vattr.va_mode = 0777;
new_attr.sa_mask = SMB_AT_TYPE | SMB_AT_MODE | SMB_AT_DOSATTR;
rc = smb_fsop_mkdir(sr, sr->user_cr, fqi->fq_dnode, fqi->fq_last_comp,
&new_attr, &fqi->fq_fnode);
if (rc != 0) {
smb_node_release(fqi->fq_dnode);
return (rc);
}
sr->arg.open.create_options = FILE_DIRECTORY_FILE;
smb_node_release(fqi->fq_dnode);
smb_node_release(fqi->fq_fnode);
return (0);
}
static smb_dirpath_t *
smb_dirpath_new(smb_request_t *sr)
{
int pathLen;
char *xpath;
smb_dirpath_t *spp;
/* Allocate using request specific memory. */
spp = smb_srm_alloc(sr, sizeof (smb_dirpath_t));
spp->sp_path = sr->arg.dirop.fqi.fq_path.pn_path;
pathLen = strlen(spp->sp_path);
spp->sp_curp = spp->sp_path;
xpath = smb_srm_alloc(sr, pathLen + 1);
sr->arg.dirop.fqi.fq_path.pn_path = xpath;
spp->sp_sr = sr;
return (spp);
}
/*
* Perhaps somewhat dangerous since everything happens as a side effect. The
* returns 1 if there is a valid component updated to the fqi, 0 otherwise.
*/
static int
smb_dirpath_next(smb_dirpath_t *spp)
{
char *xp;
int xlen;
if (spp == 0)
return (0);
/* Move the index to the "next" "\" and copy the path to the fqi */
/* path for the next component. */
/* First look for the next component */
while (*spp->sp_curp == '\\')
spp->sp_curp++;
/* Now get to the end of the component */
xp = spp->sp_curp; /* Remember from where we started */
while (*spp->sp_curp != '\0' && *spp->sp_curp != '\\') {
spp->sp_curp++;
}
/* If we made no progress, we are done */
if (xp == spp->sp_curp)
return (0);
/*
* Now copy the original path up to but not including our current
* pointer
*/
/*LINTED E_PTRDIFF_OVERFLOW*/
xlen = spp->sp_curp - spp->sp_path;
(void) strncpy(spp->sp_sr->arg.dirop.fqi.fq_path.pn_path,
spp->sp_path, xlen);
/* Now NULL terminate it */
spp->sp_sr->arg.dirop.fqi.fq_path.pn_path[xlen] = '\0';
return (1);
}
/*
* The delete directory message is sent to delete an empty directory. The
* appropriate Tid and additional pathname are passed. The directory must
* be empty for it to be deleted.
*
* NT supports a hidden permission known as File Delete Child (FDC). If
* the user has FullControl access to a directory, the user is permitted
* to delete any object in the directory regardless of the permissions
* on the object.
*
* Client Request Description
* ================================== =================================
* UCHAR WordCount; Count of parameter words = 0
* USHORT ByteCount; Count of data bytes; min = 2
* UCHAR BufferFormat; 0x04
* STRING DirectoryName[]; Directory name
*
* The directory to be deleted cannot be the root of the share specified
* by Tid.
*
* Server Response Description
* ================================== =================================
* UCHAR WordCount; Count of parameter words = 0
* USHORT ByteCount; Count of data bytes = 0
*/
smb_sdrc_t
smb_pre_delete_directory(smb_request_t *sr)
{
int rc;
rc = smbsr_decode_data(sr, "%S", sr,
&sr->arg.dirop.fqi.fq_path.pn_path);
DTRACE_SMB_2(op__DeleteDirectory__start, smb_request_t *, sr,
struct dirop *, &sr->arg.dirop);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
void
smb_post_delete_directory(smb_request_t *sr)
{
DTRACE_SMB_1(op__DeleteDirectory__done, smb_request_t *, sr);
}
smb_sdrc_t
smb_com_delete_directory(smb_request_t *sr)
{
int rc;
uint32_t flags = 0;
smb_fqi_t *fqi;
smb_node_t *tnode;
if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERROR_ACCESS_DENIED);
return (SDRC_ERROR);
}
fqi = &sr->arg.dirop.fqi;
tnode = sr->tid_tree->t_snode;
rc = smb_pathname_reduce(sr, sr->user_cr, fqi->fq_path.pn_path,
tnode, tnode, &fqi->fq_dnode, fqi->fq_last_comp);
if (rc != 0) {
smbsr_errno(sr, rc);
return (SDRC_ERROR);
}
rc = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS,
tnode, fqi->fq_dnode, fqi->fq_last_comp, &fqi->fq_fnode);
if (rc != 0) {
if (rc == ENOENT)
smbsr_error(sr, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERROR_FILE_NOT_FOUND);
else
smbsr_errno(sr, rc);
smb_node_release(fqi->fq_dnode);
return (SDRC_ERROR);
}
rc = smb_node_getattr(sr, fqi->fq_fnode, &fqi->fq_fattr);
if (rc != 0) {
smbsr_errno(sr, rc);
smb_node_release(fqi->fq_dnode);
smb_node_release(fqi->fq_fnode);
return (SDRC_ERROR);
}
if (fqi->fq_fattr.sa_vattr.va_type != VDIR) {
smbsr_error(sr, NT_STATUS_NOT_A_DIRECTORY,
ERRDOS, ERROR_PATH_NOT_FOUND);
smb_node_release(fqi->fq_dnode);
smb_node_release(fqi->fq_fnode);
return (SDRC_ERROR);
}
if ((fqi->fq_fattr.sa_dosattr & FILE_ATTRIBUTE_READONLY) ||
(smb_fsop_access(sr, sr->user_cr, fqi->fq_fnode, DELETE)
!= NT_STATUS_SUCCESS)) {
smbsr_error(sr, NT_STATUS_CANNOT_DELETE,
ERRDOS, ERROR_ACCESS_DENIED);
smb_node_release(fqi->fq_dnode);
smb_node_release(fqi->fq_fnode);
return (SDRC_ERROR);
}
if (SMB_TREE_SUPPORTS_CATIA(sr))
flags |= SMB_CATIA;
rc = smb_fsop_rmdir(sr, sr->user_cr, fqi->fq_dnode,
fqi->fq_fnode->od_name, flags);
smb_node_release(fqi->fq_fnode);
smb_node_release(fqi->fq_dnode);
if (rc != 0) {
if (rc == EEXIST)
smbsr_error(sr, NT_STATUS_DIRECTORY_NOT_EMPTY,
ERRDOS, ERROR_DIR_NOT_EMPTY);
else
smbsr_errno(sr, rc);
return (SDRC_ERROR);
}
rc = smbsr_encode_empty_result(sr);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
/*
* This SMB is used to verify that a path exists and is a directory. No
* error is returned if the given path exists and the client has read
* access to it. Client machines which maintain a concept of a "working
* directory" will find this useful to verify the validity of a "change
* working directory" command. Note that the servers do NOT have a concept
* of working directory for a particular client. The client must always
* supply full pathnames relative to the Tid in the SMB header.
*
* Client Request Description
* ================================== =================================
*
* UCHAR WordCount; Count of parameter words = 0
* USHORT ByteCount; Count of data bytes; min = 2
* UCHAR BufferFormat; 0x04
* STRING DirectoryPath[]; Directory path
*
* Server Response Description
* ================================== =================================
*
* UCHAR WordCount; Count of parameter words = 0
* USHORT ByteCount; Count of data bytes = 0
*
* DOS clients, in particular, depend on ERRbadpath if the directory is
* not found.
*/
smb_sdrc_t
smb_pre_check_directory(smb_request_t *sr)
{
int rc;
rc = smbsr_decode_data(sr, "%S", sr,
&sr->arg.dirop.fqi.fq_path.pn_path);
DTRACE_SMB_2(op__CheckDirectory__start, smb_request_t *, sr,
struct dirop *, &sr->arg.dirop);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
void
smb_post_check_directory(smb_request_t *sr)
{
DTRACE_SMB_1(op__CheckDirectory__done, smb_request_t *, sr);
}
smb_sdrc_t
smb_com_check_directory(smb_request_t *sr)
{
int rc;
smb_fqi_t *fqi;
smb_node_t *tnode;
char *path;
if (!STYPE_ISDSK(sr->tid_tree->t_res_type)) {
smbsr_error(sr, NT_STATUS_ACCESS_DENIED, ERRDOS,
ERROR_ACCESS_DENIED);
return (SDRC_ERROR);
}
fqi = &sr->arg.dirop.fqi;
path = fqi->fq_path.pn_path;
if (path[0] == '\0') {
rc = smbsr_encode_empty_result(sr);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
if (!smb_dirpath_isvalid(path)) {
smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
ERRDOS, ERROR_PATH_NOT_FOUND);
return (SDRC_ERROR);
}
tnode = sr->tid_tree->t_snode;
rc = smb_pathname_reduce(sr, sr->user_cr, path, tnode, tnode,
&fqi->fq_dnode, fqi->fq_last_comp);
if (rc != 0) {
smbsr_errno(sr, rc);
return (SDRC_ERROR);
}
rc = smb_fsop_lookup(sr, sr->user_cr, SMB_FOLLOW_LINKS,
tnode, fqi->fq_dnode, fqi->fq_last_comp, &fqi->fq_fnode);
smb_node_release(fqi->fq_dnode);
if (rc != 0) {
if (rc == ENOENT)
smbsr_error(sr, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERROR_PATH_NOT_FOUND);
else
smbsr_errno(sr, rc);
return (SDRC_ERROR);
}
rc = smb_node_getattr(sr, fqi->fq_fnode, &fqi->fq_fattr);
if (rc != 0) {
smbsr_errno(sr, rc);
smb_node_release(fqi->fq_fnode);
return (SDRC_ERROR);
}
if (fqi->fq_fattr.sa_vattr.va_type != VDIR) {
smbsr_error(sr, NT_STATUS_NOT_A_DIRECTORY,
ERRDOS, ERROR_PATH_NOT_FOUND);
smb_node_release(fqi->fq_fnode);
return (SDRC_ERROR);
}
rc = smb_fsop_access(sr, sr->user_cr, fqi->fq_fnode, FILE_TRAVERSE);
smb_node_release(fqi->fq_fnode);
if (rc != 0) {
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERROR_ACCESS_DENIED);
return (SDRC_ERROR);
}
rc = smbsr_encode_empty_result(sr);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
static boolean_t
smb_dirpath_isvalid(const char *path)
{
struct {
char *name;
int len;
} *bad, bad_paths[] = {
{ ".\0", 2 },
{ ".\\\0", 3 },
{ "..\0", 3 },
{ "..\\", 3 }
};
char *cp;
char *p;
int i;
if (*path == '\0')
return (B_TRUE);
cp = smb_strdup(path);
p = strcanon(cp, "\\");
p += strspn(p, "\\");
for (i = 0; i < sizeof (bad_paths) / sizeof (bad_paths[0]); ++i) {
bad = &bad_paths[i];
if (strncmp(p, bad->name, bad->len) == 0) {
smb_mfree(cp);
return (B_FALSE);
}
}
smb_mfree(cp);
return (B_TRUE);
}