/*
* smb_sd_write
*
* Takes a Win SD in absolute form, converts it to
* ZFS format and write it to filesystem. The write routine
* converts ZFS acl to Posix acl if required.
*/
uint32_t
smb_sd_write(smb_request_t *sr, smb_sd_t *sd, uint32_t secinfo)
{
smb_node_t *node;
smb_fssd_t fs_sd;
uint32_t status;
uint32_t sd_flags;
int error;
node = sr->fid_ofile->f_node;
sd_flags = smb_node_is_dir(node) ? SMB_FSSD_FLAGS_DIR : 0;
smb_fssd_init(&fs_sd, secinfo, sd_flags);
status = smb_sd_tofs(sd, &fs_sd);
if (status != NT_STATUS_SUCCESS) {
smb_fssd_term(&fs_sd);
return (status);
}
error = smb_fsop_sdwrite(sr, sr->user_cr, node, &fs_sd, 0);
smb_fssd_term(&fs_sd);
if (error) {
if (error == EBADE)
return (NT_STATUS_INVALID_OWNER);
return (smb_errno2status(error));
}
return (NT_STATUS_SUCCESS);
}
/*
* smb_odir_open
*
* Create an odir representing the directory specified in pathname.
*
* Returns:
* odid - Unique identifier of newly created odir.
* 0 - error, error details set in sr.
*/
uint16_t
smb_odir_open(smb_request_t *sr, char *path, uint16_t sattr, uint32_t flags)
{
int rc;
smb_tree_t *tree;
smb_node_t *dnode;
char pattern[MAXNAMELEN];
uint16_t odid;
cred_t *cr;
ASSERT(sr);
ASSERT(sr->sr_magic == SMB_REQ_MAGIC);
ASSERT(sr->tid_tree);
ASSERT(sr->tid_tree->t_magic == SMB_TREE_MAGIC);
tree = sr->tid_tree;
if (sr->session->dialect < NT_LM_0_12)
smb_convert_wildcards(path);
rc = smb_pathname_reduce(sr, sr->user_cr, path,
tree->t_snode, tree->t_snode, &dnode, pattern);
if (rc != 0) {
smbsr_errno(sr, rc);
return (0);
}
if (!smb_node_is_dir(dnode)) {
smbsr_error(sr, NT_STATUS_OBJECT_PATH_NOT_FOUND,
ERRDOS, ERROR_PATH_NOT_FOUND);
smb_node_release(dnode);
return (0);
}
if (smb_fsop_access(sr, sr->user_cr, dnode, FILE_LIST_DIRECTORY) != 0) {
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERROR_ACCESS_DENIED);
smb_node_release(dnode);
return (0);
}
if (flags & SMB_ODIR_OPENF_BACKUP_INTENT)
cr = smb_user_getprivcred(sr->uid_user);
else
cr = sr->uid_user->u_cred;
odid = smb_odir_create(sr, dnode, pattern, sattr, cr);
smb_node_release(dnode);
return (odid);
}
/*
* smb_sd_read
*
* Read uid, gid and ACL from filesystem. The returned ACL from read
* routine is always in ZFS format. Convert the ZFS acl to a Win acl
* and return the Win SD in absolute form.
*
* NOTE: upon successful return caller MUST free the memory allocated
* for the returned SD by calling smb_sd_term().
*/
uint32_t
smb_sd_read(smb_request_t *sr, smb_sd_t *sd, uint32_t secinfo)
{
smb_fssd_t fs_sd;
smb_node_t *node;
uint32_t status = NT_STATUS_SUCCESS;
uint32_t sd_flags;
int error;
node = sr->fid_ofile->f_node;
sd_flags = smb_node_is_dir(node) ? SMB_FSSD_FLAGS_DIR : 0;
smb_fssd_init(&fs_sd, secinfo, sd_flags);
error = smb_fsop_sdread(sr, sr->user_cr, node, &fs_sd);
if (error)
return (smb_errno2status(error));
status = smb_sd_fromfs(&fs_sd, sd);
smb_fssd_term(&fs_sd);
return (status);
}
/*
* smb_odir_lookup_link
*
* If the file is a symlink we lookup the object to which the
* symlink refers so that we can return its attributes.
* This can cause a problem if a symlink in a sub-directory
* points to a parent directory (some UNIX GUI's create a symlink
* in $HOME/.desktop that points to the user's home directory).
* Some Windows applications (e.g. virus scanning) loop/hang
* trying to follow this recursive path and there is little
* we can do because the path is constructed on the client.
* smb_dirsymlink_enable allows an end-user to disable
* symlinks to directories. Symlinks to other object types
* should be unaffected.
*
* Returns: B_TRUE - followed link. tgt_node and tgt_attr set
* B_FALSE - link not followed
*/
static boolean_t
smb_odir_lookup_link(smb_request_t *sr, smb_odir_t *od,
char *fname, smb_node_t **tgt_node)
{
int rc;
uint32_t flags = SMB_FOLLOW_LINKS | SMB_CASE_SENSITIVE;
rc = smb_fsop_lookup(sr, od->d_cred, flags,
od->d_tree->t_snode, od->d_dnode, fname, tgt_node);
if (rc != 0) {
*tgt_node = NULL;
return (B_FALSE);
}
if (smb_node_is_dir(*tgt_node) && (!smb_dirsymlink_enable)) {
smb_node_release(*tgt_node);
*tgt_node = NULL;
return (B_FALSE);
}
return (B_TRUE);
}
/*
* smb_set_open_timestamps
*
* Last write time:
* - If the last_write time specified in the open params is not 0 or -1,
* use it as file's mtime. This will be considered an explicitly set
* timestamps, not reset by subsequent writes.
*
* Opening existing file (not directory):
* - If opening an existing file for overwrite set initial ATIME, MTIME
* & CTIME to now. (This is achieved by setting them as pending then forcing
* an smb_node_setattr() to apply pending times.)
*
* - Note If opening an existing file NOT for overwrite, windows would
* set the atime on file close, however setting the atime would cause
* the ARCHIVE attribute to be set, which does not occur on windows,
* so we do not do the atime update.
*
* Returns: errno
*/
static int
smb_set_open_timestamps(smb_request_t *sr, smb_ofile_t *of, boolean_t created)
{
int rc = 0;
smb_arg_open_t *op = &sr->sr_open;
smb_node_t *node = of->f_node;
boolean_t existing_file, set_times;
smb_attr_t attr;
bzero(&attr, sizeof (smb_attr_t));
set_times = B_FALSE;
if ((op->mtime.tv_sec != 0) && (op->mtime.tv_sec != UINT_MAX)) {
attr.sa_mask = SMB_AT_MTIME;
attr.sa_vattr.va_mtime = op->mtime;
set_times = B_TRUE;
}
existing_file = !(created || smb_node_is_dir(node));
if (existing_file) {
switch (op->create_disposition) {
case FILE_SUPERSEDE:
case FILE_OVERWRITE_IF:
case FILE_OVERWRITE:
smb_ofile_set_write_time_pending(of);
set_times = B_TRUE;
break;
default:
break;
}
}
if (set_times)
rc = smb_node_setattr(sr, node, sr->user_cr, of, &attr);
return (rc);
}
/*
* smb_open_subr
*
* Notes on write-through behaviour. It looks like pre-LM0.12 versions
* of the protocol specify the write-through mode when a file is opened,
* (SmbOpen, SmbOpenAndX) so the write calls (SmbWrite, SmbWriteAndClose,
* SmbWriteAndUnlock) don't need to contain a write-through flag.
*
* With LM0.12, the open calls (SmbCreateAndX, SmbNtTransactCreate)
* don't indicate which write-through mode to use. Instead the write
* calls (SmbWriteAndX, SmbWriteRaw) specify the mode on a per call
* basis.
*
* We don't care which open call was used to get us here, we just need
* to ensure that the write-through mode flag is copied from the open
* parameters to the node. We test the omode write-through flag in all
* write functions.
*
* This function will return NT status codes but it also raises errors,
* in which case it won't return to the caller. Be careful how you
* handle things in here.
*
* The following rules apply when processing a file open request:
*
* - Oplocks must be broken prior to share checking as the break may
* cause other clients to close the file, which would affect sharing
* checks.
*
* - Share checks must take place prior to access checks for correct
* Windows semantics and to prevent unnecessary NFS delegation recalls.
*
* - Oplocks must be acquired after open to ensure the correct
* synchronization with NFS delegation and FEM installation.
*
* DOS readonly bit rules
*
* 1. The creator of a readonly file can write to/modify the size of the file
* using the original create fid, even though the file will appear as readonly
* to all other fids and via a CIFS getattr call.
* The readonly bit therefore cannot be set in the filesystem until the file
* is closed (smb_ofile_close). It is accounted for via ofile and node flags.
*
* 2. A setinfo operation (using either an open fid or a path) to set/unset
* readonly will be successful regardless of whether a creator of a readonly
* file has an open fid (and has the special privilege mentioned in #1,
* above). I.e., the creator of a readonly fid holding that fid will no longer
* have a special privilege.
*
* 3. The DOS readonly bit affects only data and some metadata.
* The following metadata can be changed regardless of the readonly bit:
* - security descriptors
* - DOS attributes
* - timestamps
*
* In the current implementation, the file size cannot be changed (except for
* the exceptions in #1 and #2, above).
*
*
* DOS attribute rules
*
* These rules are specific to creating / opening files and directories.
* How the attribute value (specifically ZERO or FILE_ATTRIBUTE_NORMAL)
* should be interpreted may differ in other requests.
*
* - An attribute value equal to ZERO or FILE_ATTRIBUTE_NORMAL means that the
* file's attributes should be cleared.
* - If FILE_ATTRIBUTE_NORMAL is specified with any other attributes,
* FILE_ATTRIBUTE_NORMAL is ignored.
*
* 1. Creating a new file
* - The request attributes + FILE_ATTRIBUTE_ARCHIVE are applied to the file.
*
* 2. Creating a new directory
* - The request attributes + FILE_ATTRIBUTE_DIRECTORY are applied to the file.
* - FILE_ATTRIBUTE_ARCHIVE does not get set.
*
* 3. Overwriting an existing file
* - the request attributes are used as search attributes. If the existing
* file does not meet the search criteria access is denied.
* - otherwise, applies attributes + FILE_ATTRIBUTE_ARCHIVE.
*
* 4. Opening an existing file or directory
* The request attributes are ignored.
*/
static uint32_t
smb_open_subr(smb_request_t *sr)
{
boolean_t created = B_FALSE;
boolean_t last_comp_found = B_FALSE;
smb_node_t *node = NULL;
smb_node_t *dnode = NULL;
smb_node_t *cur_node = NULL;
smb_arg_open_t *op = &sr->sr_open;
int rc;
smb_ofile_t *of;
smb_attr_t new_attr;
int max_requested = 0;
uint32_t max_allowed;
uint32_t status = NT_STATUS_SUCCESS;
int is_dir;
smb_error_t err;
boolean_t is_stream = B_FALSE;
int lookup_flags = SMB_FOLLOW_LINKS;
uint32_t uniq_fid;
smb_pathname_t *pn = &op->fqi.fq_path;
smb_server_t *sv = sr->sr_server;
is_dir = (op->create_options & FILE_DIRECTORY_FILE) ? 1 : 0;
/*
* If the object being created or opened is a directory
* the Disposition parameter must be one of FILE_CREATE,
* FILE_OPEN, or FILE_OPEN_IF
*/
if (is_dir) {
if ((op->create_disposition != FILE_CREATE) &&
(op->create_disposition != FILE_OPEN_IF) &&
(op->create_disposition != FILE_OPEN)) {
smbsr_error(sr, NT_STATUS_INVALID_PARAMETER,
ERRDOS, ERROR_INVALID_ACCESS);
return (NT_STATUS_INVALID_PARAMETER);
}
}
if (op->desired_access & MAXIMUM_ALLOWED) {
max_requested = 1;
op->desired_access &= ~MAXIMUM_ALLOWED;
}
op->desired_access = smb_access_generic_to_file(op->desired_access);
if (sr->session->s_file_cnt >= SMB_SESSION_OFILE_MAX) {
ASSERT(sr->uid_user);
cmn_err(CE_NOTE, "smbsrv[%s\\%s]: TOO_MANY_OPENED_FILES",
sr->uid_user->u_domain, sr->uid_user->u_name);
smbsr_error(sr, NT_STATUS_TOO_MANY_OPENED_FILES,
ERRDOS, ERROR_TOO_MANY_OPEN_FILES);
return (NT_STATUS_TOO_MANY_OPENED_FILES);
}
/* This must be NULL at this point */
sr->fid_ofile = NULL;
op->devstate = 0;
switch (sr->tid_tree->t_res_type & STYPE_MASK) {
case STYPE_DISKTREE:
case STYPE_PRINTQ:
break;
case STYPE_IPC:
if ((rc = smb_threshold_enter(&sv->sv_opipe_ct)) != 0) {
status = RPC_NT_SERVER_TOO_BUSY;
smbsr_error(sr, status, 0, 0);
return (status);
}
/*
* No further processing for IPC, we need to either
* raise an exception or return success here.
*/
if ((status = smb_opipe_open(sr)) != NT_STATUS_SUCCESS)
smbsr_error(sr, status, 0, 0);
smb_threshold_exit(&sv->sv_opipe_ct, sv);
return (status);
default:
smbsr_error(sr, NT_STATUS_BAD_DEVICE_TYPE,
ERRDOS, ERROR_BAD_DEV_TYPE);
return (NT_STATUS_BAD_DEVICE_TYPE);
}
smb_pathname_init(sr, pn, pn->pn_path);
if (!smb_pathname_validate(sr, pn))
return (sr->smb_error.status);
if (strlen(pn->pn_path) >= MAXPATHLEN) {
smbsr_error(sr, 0, ERRSRV, ERRfilespecs);
return (NT_STATUS_NAME_TOO_LONG);
}
if (is_dir) {
if (!smb_validate_dirname(sr, pn))
return (sr->smb_error.status);
} else {
if (!smb_validate_object_name(sr, pn))
return (sr->smb_error.status);
}
cur_node = op->fqi.fq_dnode ?
op->fqi.fq_dnode : sr->tid_tree->t_snode;
/*
* if no path or filename are specified the stream should be
* created on cur_node
*/
if (!is_dir && !pn->pn_pname && !pn->pn_fname && pn->pn_sname) {
/*
* Can't currently handle a stream on the tree root.
* If a stream is being opened return "not found", otherwise
* return "access denied".
*/
if (cur_node == sr->tid_tree->t_snode) {
if (op->create_disposition == FILE_OPEN) {
smbsr_error(sr, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERROR_FILE_NOT_FOUND);
return (NT_STATUS_OBJECT_NAME_NOT_FOUND);
}
smbsr_error(sr, NT_STATUS_ACCESS_DENIED, ERRDOS,
ERROR_ACCESS_DENIED);
return (NT_STATUS_ACCESS_DENIED);
}
(void) snprintf(op->fqi.fq_last_comp,
sizeof (op->fqi.fq_last_comp),
"%s%s", cur_node->od_name, pn->pn_sname);
op->fqi.fq_dnode = cur_node->n_dnode;
smb_node_ref(op->fqi.fq_dnode);
} else {
if (rc = smb_pathname_reduce(sr, sr->user_cr, pn->pn_path,
sr->tid_tree->t_snode, cur_node, &op->fqi.fq_dnode,
op->fqi.fq_last_comp)) {
smbsr_errno(sr, rc);
return (sr->smb_error.status);
}
}
/*
* If the access mask has only DELETE set (ignore
* FILE_READ_ATTRIBUTES), then assume that this
* is a request to delete the link (if a link)
* and do not follow links. Otherwise, follow
* the link to the target.
*/
if ((op->desired_access & ~FILE_READ_ATTRIBUTES) == DELETE)
lookup_flags &= ~SMB_FOLLOW_LINKS;
rc = smb_fsop_lookup_name(sr, kcred, lookup_flags,
sr->tid_tree->t_snode, op->fqi.fq_dnode, op->fqi.fq_last_comp,
&op->fqi.fq_fnode);
if (rc == 0) {
last_comp_found = B_TRUE;
rc = smb_node_getattr(sr, op->fqi.fq_fnode,
&op->fqi.fq_fattr);
if (rc != 0) {
smb_node_release(op->fqi.fq_fnode);
smb_node_release(op->fqi.fq_dnode);
smbsr_error(sr, NT_STATUS_INTERNAL_ERROR,
ERRDOS, ERROR_INTERNAL_ERROR);
return (sr->smb_error.status);
}
} else if (rc == ENOENT) {
last_comp_found = B_FALSE;
op->fqi.fq_fnode = NULL;
rc = 0;
} else {
smb_node_release(op->fqi.fq_dnode);
smbsr_errno(sr, rc);
return (sr->smb_error.status);
}
/*
* The uniq_fid is a CIFS-server-wide unique identifier for an ofile
* which is used to uniquely identify open instances for the
* VFS share reservation and POSIX locks.
*/
uniq_fid = SMB_UNIQ_FID();
if (last_comp_found) {
node = op->fqi.fq_fnode;
dnode = op->fqi.fq_dnode;
if (!smb_node_is_file(node) && !smb_node_is_dir(node) &&
!smb_node_is_symlink(node)) {
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_ACCESS_DENIED, ERRDOS,
ERRnoaccess);
return (NT_STATUS_ACCESS_DENIED);
}
/*
* Reject this request if either:
* - the target IS a directory and the client requires that
* it must NOT be (required by Lotus Notes)
* - the target is NOT a directory and client requires that
* it MUST be.
*/
if (smb_node_is_dir(node)) {
if (op->create_options & FILE_NON_DIRECTORY_FILE) {
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_FILE_IS_A_DIRECTORY,
ERRDOS, ERROR_ACCESS_DENIED);
return (NT_STATUS_FILE_IS_A_DIRECTORY);
}
} else {
if ((op->create_options & FILE_DIRECTORY_FILE) ||
(op->nt_flags & NT_CREATE_FLAG_OPEN_TARGET_DIR)) {
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_NOT_A_DIRECTORY,
ERRDOS, ERROR_DIRECTORY);
return (NT_STATUS_NOT_A_DIRECTORY);
}
}
/*
* No more open should be accepted when "Delete on close"
* flag is set.
*/
if (node->flags & NODE_FLAGS_DELETE_ON_CLOSE) {
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_DELETE_PENDING,
ERRDOS, ERROR_ACCESS_DENIED);
return (NT_STATUS_DELETE_PENDING);
}
/*
* Specified file already exists so the operation should fail.
*/
if (op->create_disposition == FILE_CREATE) {
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_OBJECT_NAME_COLLISION,
ERRDOS, ERROR_FILE_EXISTS);
return (NT_STATUS_OBJECT_NAME_COLLISION);
}
/*
* Windows seems to check read-only access before file
* sharing check.
*
* Check to see if the file is currently readonly (irrespective
* of whether this open will make it readonly).
*/
if (SMB_PATHFILE_IS_READONLY(sr, node)) {
/* Files data only */
if (!smb_node_is_dir(node)) {
if (op->desired_access & (FILE_WRITE_DATA |
FILE_APPEND_DATA)) {
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERRnoaccess);
return (NT_STATUS_ACCESS_DENIED);
}
}
}
/*
* Oplock break is done prior to sharing checks as the break
* may cause other clients to close the file which would
* affect the sharing checks.
*/
smb_node_inc_opening_count(node);
smb_open_oplock_break(sr, node);
smb_node_wrlock(node);
if ((op->create_disposition == FILE_SUPERSEDE) ||
(op->create_disposition == FILE_OVERWRITE_IF) ||
(op->create_disposition == FILE_OVERWRITE)) {
if ((!(op->desired_access &
(FILE_WRITE_DATA | FILE_APPEND_DATA |
FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA))) ||
(!smb_sattr_check(op->fqi.fq_fattr.sa_dosattr,
op->dattr))) {
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERRnoaccess);
return (NT_STATUS_ACCESS_DENIED);
}
}
status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid,
op->desired_access, op->share_access);
if (status == NT_STATUS_SHARING_VIOLATION) {
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
return (status);
}
status = smb_fsop_access(sr, sr->user_cr, node,
op->desired_access);
if (status != NT_STATUS_SUCCESS) {
smb_fsop_unshrlock(sr->user_cr, node, uniq_fid);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
if (status == NT_STATUS_PRIVILEGE_NOT_HELD) {
smbsr_error(sr, status,
ERRDOS, ERROR_PRIVILEGE_NOT_HELD);
return (status);
} else {
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERROR_ACCESS_DENIED);
return (NT_STATUS_ACCESS_DENIED);
}
}
switch (op->create_disposition) {
case FILE_SUPERSEDE:
case FILE_OVERWRITE_IF:
case FILE_OVERWRITE:
if (smb_node_is_dir(node)) {
smb_fsop_unshrlock(sr->user_cr, node, uniq_fid);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERROR_ACCESS_DENIED);
return (NT_STATUS_ACCESS_DENIED);
}
op->dattr |= FILE_ATTRIBUTE_ARCHIVE;
/* Don't apply readonly bit until smb_ofile_close */
if (op->dattr & FILE_ATTRIBUTE_READONLY) {
op->created_readonly = B_TRUE;
op->dattr &= ~FILE_ATTRIBUTE_READONLY;
}
bzero(&new_attr, sizeof (new_attr));
new_attr.sa_dosattr = op->dattr;
new_attr.sa_vattr.va_size = op->dsize;
new_attr.sa_mask = SMB_AT_DOSATTR | SMB_AT_SIZE;
rc = smb_fsop_setattr(sr, sr->user_cr, node, &new_attr);
if (rc != 0) {
smb_fsop_unshrlock(sr->user_cr, node, uniq_fid);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
smbsr_errno(sr, rc);
return (sr->smb_error.status);
}
/*
* If file is being replaced, remove existing streams
*/
if (SMB_IS_STREAM(node) == 0) {
rc = smb_fsop_remove_streams(sr, sr->user_cr,
node);
if (rc != 0) {
smb_fsop_unshrlock(sr->user_cr, node,
uniq_fid);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
return (sr->smb_error.status);
}
}
op->action_taken = SMB_OACT_TRUNCATED;
break;
default:
/*
* FILE_OPEN or FILE_OPEN_IF.
*/
op->action_taken = SMB_OACT_OPENED;
break;
}
} else {
/* Last component was not found. */
dnode = op->fqi.fq_dnode;
if (is_dir == 0)
is_stream = smb_is_stream_name(pn->pn_path);
if ((op->create_disposition == FILE_OPEN) ||
(op->create_disposition == FILE_OVERWRITE)) {
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_OBJECT_NAME_NOT_FOUND,
ERRDOS, ERROR_FILE_NOT_FOUND);
return (NT_STATUS_OBJECT_NAME_NOT_FOUND);
}
if (pn->pn_fname && smb_is_invalid_filename(pn->pn_fname)) {
smb_node_release(dnode);
smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
ERRDOS, ERROR_INVALID_NAME);
return (NT_STATUS_OBJECT_NAME_INVALID);
}
/*
* lock the parent dir node in case another create
* request to the same parent directory comes in.
*/
smb_node_wrlock(dnode);
/* Don't apply readonly bit until smb_ofile_close */
if (op->dattr & FILE_ATTRIBUTE_READONLY) {
op->dattr &= ~FILE_ATTRIBUTE_READONLY;
op->created_readonly = B_TRUE;
}
bzero(&new_attr, sizeof (new_attr));
if ((op->crtime.tv_sec != 0) &&
(op->crtime.tv_sec != UINT_MAX)) {
new_attr.sa_mask |= SMB_AT_CRTIME;
new_attr.sa_crtime = op->crtime;
}
if (is_dir == 0) {
op->dattr |= FILE_ATTRIBUTE_ARCHIVE;
new_attr.sa_dosattr = op->dattr;
new_attr.sa_vattr.va_type = VREG;
new_attr.sa_vattr.va_mode = is_stream ? S_IRUSR :
S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
new_attr.sa_mask |=
SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE;
if (op->dsize) {
new_attr.sa_vattr.va_size = op->dsize;
new_attr.sa_mask |= SMB_AT_SIZE;
}
rc = smb_fsop_create(sr, sr->user_cr, dnode,
op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode);
if (rc != 0) {
smb_node_unlock(dnode);
smb_node_release(dnode);
smbsr_errno(sr, rc);
return (sr->smb_error.status);
}
node = op->fqi.fq_fnode;
smb_node_inc_opening_count(node);
smb_node_wrlock(node);
status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid,
op->desired_access, op->share_access);
if (status == NT_STATUS_SHARING_VIOLATION) {
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_delete_new_object(sr);
smb_node_release(node);
smb_node_unlock(dnode);
smb_node_release(dnode);
return (status);
}
} else {
op->dattr |= FILE_ATTRIBUTE_DIRECTORY;
new_attr.sa_dosattr = op->dattr;
new_attr.sa_vattr.va_type = VDIR;
new_attr.sa_vattr.va_mode = 0777;
new_attr.sa_mask |=
SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE;
rc = smb_fsop_mkdir(sr, sr->user_cr, dnode,
op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode);
if (rc != 0) {
smb_node_unlock(dnode);
smb_node_release(dnode);
smbsr_errno(sr, rc);
return (sr->smb_error.status);
}
node = op->fqi.fq_fnode;
smb_node_inc_opening_count(node);
smb_node_wrlock(node);
}
created = B_TRUE;
op->action_taken = SMB_OACT_CREATED;
}
if (max_requested) {
smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed);
op->desired_access |= max_allowed;
}
status = NT_STATUS_SUCCESS;
of = smb_ofile_open(sr->tid_tree, node, sr->smb_pid, op, SMB_FTYPE_DISK,
uniq_fid, &err);
if (of == NULL) {
smbsr_error(sr, err.status, err.errcls, err.errcode);
status = err.status;
}
if (status == NT_STATUS_SUCCESS) {
if (!smb_tree_is_connected(sr->tid_tree)) {
smbsr_error(sr, 0, ERRSRV, ERRinvnid);
status = NT_STATUS_UNSUCCESSFUL;
}
}
/*
* This MUST be done after ofile creation, so that explicitly
* set timestamps can be remembered on the ofile.
*/
if (status == NT_STATUS_SUCCESS) {
if ((rc = smb_set_open_timestamps(sr, of, created)) != 0) {
smbsr_errno(sr, rc);
status = sr->smb_error.status;
}
}
if (status == NT_STATUS_SUCCESS) {
if (smb_node_getattr(sr, node, &op->fqi.fq_fattr) != 0) {
smbsr_error(sr, NT_STATUS_INTERNAL_ERROR,
ERRDOS, ERROR_INTERNAL_ERROR);
status = NT_STATUS_INTERNAL_ERROR;
}
}
/*
* smb_fsop_unshrlock is a no-op if node is a directory
* smb_fsop_unshrlock is done in smb_ofile_close
*/
if (status != NT_STATUS_SUCCESS) {
if (of == NULL) {
smb_fsop_unshrlock(sr->user_cr, node, uniq_fid);
} else {
smb_ofile_close(of, 0);
smb_ofile_release(of);
}
if (created)
smb_delete_new_object(sr);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
if (created)
smb_node_unlock(dnode);
smb_node_release(dnode);
return (status);
}
/*
* Propagate the write-through mode from the open params
* to the node: see the notes in the function header.
*/
if (sr->sr_cfg->skc_sync_enable ||
(op->create_options & FILE_WRITE_THROUGH))
node->flags |= NODE_FLAGS_WRITE_THROUGH;
/*
* Set up the fileid and dosattr in open_param for response
*/
op->fileid = op->fqi.fq_fattr.sa_vattr.va_nodeid;
op->dattr = op->fqi.fq_fattr.sa_dosattr;
/*
* Set up the file type in open_param for the response
*/
op->ftype = SMB_FTYPE_DISK;
sr->smb_fid = of->f_fid;
sr->fid_ofile = of;
if (smb_node_is_file(node)) {
smb_oplock_acquire(sr, node, of);
op->dsize = op->fqi.fq_fattr.sa_vattr.va_size;
} else {
/* directory or symlink */
op->op_oplock_level = SMB_OPLOCK_NONE;
op->dsize = 0;
}
smb_node_dec_opening_count(node);
smb_node_unlock(node);
if (created)
smb_node_unlock(dnode);
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_SUCCESS);
}
/*
* smb_open_subr
*
* Notes on write-through behaviour. It looks like pre-LM0.12 versions
* of the protocol specify the write-through mode when a file is opened,
* (SmbOpen, SmbOpenAndX) so the write calls (SmbWrite, SmbWriteAndClose,
* SmbWriteAndUnlock) don't need to contain a write-through flag.
*
* With LM0.12, the open calls (SmbCreateAndX, SmbNtTransactCreate)
* don't indicate which write-through mode to use. Instead the write
* calls (SmbWriteAndX, SmbWriteRaw) specify the mode on a per call
* basis.
*
* We don't care which open call was used to get us here, we just need
* to ensure that the write-through mode flag is copied from the open
* parameters to the node. We test the omode write-through flag in all
* write functions.
*
* This function returns NT status codes.
*
* The following rules apply when processing a file open request:
*
* - Oplocks must be broken prior to share checking as the break may
* cause other clients to close the file, which would affect sharing
* checks.
*
* - Share checks must take place prior to access checks for correct
* Windows semantics and to prevent unnecessary NFS delegation recalls.
*
* - Oplocks must be acquired after open to ensure the correct
* synchronization with NFS delegation and FEM installation.
*
* DOS readonly bit rules
*
* 1. The creator of a readonly file can write to/modify the size of the file
* using the original create fid, even though the file will appear as readonly
* to all other fids and via a CIFS getattr call.
* The readonly bit therefore cannot be set in the filesystem until the file
* is closed (smb_ofile_close). It is accounted for via ofile and node flags.
*
* 2. A setinfo operation (using either an open fid or a path) to set/unset
* readonly will be successful regardless of whether a creator of a readonly
* file has an open fid (and has the special privilege mentioned in #1,
* above). I.e., the creator of a readonly fid holding that fid will no longer
* have a special privilege.
*
* 3. The DOS readonly bit affects only data and some metadata.
* The following metadata can be changed regardless of the readonly bit:
* - security descriptors
* - DOS attributes
* - timestamps
*
* In the current implementation, the file size cannot be changed (except for
* the exceptions in #1 and #2, above).
*
*
* DOS attribute rules
*
* These rules are specific to creating / opening files and directories.
* How the attribute value (specifically ZERO or FILE_ATTRIBUTE_NORMAL)
* should be interpreted may differ in other requests.
*
* - An attribute value equal to ZERO or FILE_ATTRIBUTE_NORMAL means that the
* file's attributes should be cleared.
* - If FILE_ATTRIBUTE_NORMAL is specified with any other attributes,
* FILE_ATTRIBUTE_NORMAL is ignored.
*
* 1. Creating a new file
* - The request attributes + FILE_ATTRIBUTE_ARCHIVE are applied to the file.
*
* 2. Creating a new directory
* - The request attributes + FILE_ATTRIBUTE_DIRECTORY are applied to the file.
* - FILE_ATTRIBUTE_ARCHIVE does not get set.
*
* 3. Overwriting an existing file
* - the request attributes are used as search attributes. If the existing
* file does not meet the search criteria access is denied.
* - otherwise, applies attributes + FILE_ATTRIBUTE_ARCHIVE.
*
* 4. Opening an existing file or directory
* The request attributes are ignored.
*/
static uint32_t
smb_open_subr(smb_request_t *sr)
{
boolean_t created = B_FALSE;
boolean_t last_comp_found = B_FALSE;
smb_node_t *node = NULL;
smb_node_t *dnode = NULL;
smb_node_t *cur_node = NULL;
smb_arg_open_t *op = &sr->sr_open;
int rc;
smb_ofile_t *of;
smb_attr_t new_attr;
int max_requested = 0;
uint32_t max_allowed;
uint32_t status = NT_STATUS_SUCCESS;
int is_dir;
smb_error_t err;
boolean_t is_stream = B_FALSE;
int lookup_flags = SMB_FOLLOW_LINKS;
uint32_t uniq_fid;
smb_pathname_t *pn = &op->fqi.fq_path;
smb_server_t *sv = sr->sr_server;
is_dir = (op->create_options & FILE_DIRECTORY_FILE) ? 1 : 0;
/*
* If the object being created or opened is a directory
* the Disposition parameter must be one of FILE_CREATE,
* FILE_OPEN, or FILE_OPEN_IF
*/
if (is_dir) {
if ((op->create_disposition != FILE_CREATE) &&
(op->create_disposition != FILE_OPEN_IF) &&
(op->create_disposition != FILE_OPEN)) {
return (NT_STATUS_INVALID_PARAMETER);
}
}
if (op->desired_access & MAXIMUM_ALLOWED) {
max_requested = 1;
op->desired_access &= ~MAXIMUM_ALLOWED;
}
op->desired_access = smb_access_generic_to_file(op->desired_access);
if (sr->session->s_file_cnt >= SMB_SESSION_OFILE_MAX) {
ASSERT(sr->uid_user);
cmn_err(CE_NOTE, "smbsrv[%s\\%s]: TOO_MANY_OPENED_FILES",
sr->uid_user->u_domain, sr->uid_user->u_name);
return (NT_STATUS_TOO_MANY_OPENED_FILES);
}
/* This must be NULL at this point */
sr->fid_ofile = NULL;
op->devstate = 0;
switch (sr->tid_tree->t_res_type & STYPE_MASK) {
case STYPE_DISKTREE:
case STYPE_PRINTQ:
break;
case STYPE_IPC:
/*
* Security descriptors for pipes are not implemented,
* so just setup a reasonable access mask.
*/
op->desired_access = (READ_CONTROL | SYNCHRONIZE |
FILE_READ_DATA | FILE_READ_ATTRIBUTES |
FILE_WRITE_DATA | FILE_APPEND_DATA);
/*
* Limit the number of open pipe instances.
*/
if ((rc = smb_threshold_enter(&sv->sv_opipe_ct)) != 0) {
status = RPC_NT_SERVER_TOO_BUSY;
return (status);
}
/*
* No further processing for IPC, we need to either
* raise an exception or return success here.
*/
uniq_fid = SMB_UNIQ_FID();
status = smb_opipe_open(sr, uniq_fid);
smb_threshold_exit(&sv->sv_opipe_ct);
return (status);
default:
return (NT_STATUS_BAD_DEVICE_TYPE);
}
smb_pathname_init(sr, pn, pn->pn_path);
if (!smb_pathname_validate(sr, pn))
return (sr->smb_error.status);
if (strlen(pn->pn_path) >= SMB_MAXPATHLEN) {
return (NT_STATUS_OBJECT_PATH_INVALID);
}
if (is_dir) {
if (!smb_validate_dirname(sr, pn))
return (sr->smb_error.status);
} else {
if (!smb_validate_object_name(sr, pn))
return (sr->smb_error.status);
}
cur_node = op->fqi.fq_dnode ?
op->fqi.fq_dnode : sr->tid_tree->t_snode;
/*
* if no path or filename are specified the stream should be
* created on cur_node
*/
if (!is_dir && !pn->pn_pname && !pn->pn_fname && pn->pn_sname) {
/*
* Can't currently handle a stream on the tree root.
* If a stream is being opened return "not found", otherwise
* return "access denied".
*/
if (cur_node == sr->tid_tree->t_snode) {
if (op->create_disposition == FILE_OPEN) {
return (NT_STATUS_OBJECT_NAME_NOT_FOUND);
}
return (NT_STATUS_ACCESS_DENIED);
}
(void) snprintf(op->fqi.fq_last_comp,
sizeof (op->fqi.fq_last_comp),
"%s%s", cur_node->od_name, pn->pn_sname);
op->fqi.fq_dnode = cur_node->n_dnode;
smb_node_ref(op->fqi.fq_dnode);
} else {
rc = smb_pathname_reduce(sr, sr->user_cr, pn->pn_path,
sr->tid_tree->t_snode, cur_node, &op->fqi.fq_dnode,
op->fqi.fq_last_comp);
if (rc != 0) {
return (smb_errno2status(rc));
}
}
/*
* If the access mask has only DELETE set (ignore
* FILE_READ_ATTRIBUTES), then assume that this
* is a request to delete the link (if a link)
* and do not follow links. Otherwise, follow
* the link to the target.
*/
if ((op->desired_access & ~FILE_READ_ATTRIBUTES) == DELETE)
lookup_flags &= ~SMB_FOLLOW_LINKS;
rc = smb_fsop_lookup_name(sr, zone_kcred(), lookup_flags,
sr->tid_tree->t_snode, op->fqi.fq_dnode, op->fqi.fq_last_comp,
&op->fqi.fq_fnode);
if (rc == 0) {
last_comp_found = B_TRUE;
/*
* Need the DOS attributes below, where we
* check the search attributes (sattr).
*/
op->fqi.fq_fattr.sa_mask = SMB_AT_DOSATTR;
rc = smb_node_getattr(sr, op->fqi.fq_fnode, zone_kcred(),
NULL, &op->fqi.fq_fattr);
if (rc != 0) {
smb_node_release(op->fqi.fq_fnode);
smb_node_release(op->fqi.fq_dnode);
return (NT_STATUS_INTERNAL_ERROR);
}
} else if (rc == ENOENT) {
last_comp_found = B_FALSE;
op->fqi.fq_fnode = NULL;
rc = 0;
} else {
smb_node_release(op->fqi.fq_dnode);
return (smb_errno2status(rc));
}
/*
* The uniq_fid is a CIFS-server-wide unique identifier for an ofile
* which is used to uniquely identify open instances for the
* VFS share reservation and POSIX locks.
*/
uniq_fid = SMB_UNIQ_FID();
if (last_comp_found) {
node = op->fqi.fq_fnode;
dnode = op->fqi.fq_dnode;
if (!smb_node_is_file(node) && !smb_node_is_dir(node) &&
!smb_node_is_symlink(node)) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_ACCESS_DENIED);
}
/*
* Reject this request if either:
* - the target IS a directory and the client requires that
* it must NOT be (required by Lotus Notes)
* - the target is NOT a directory and client requires that
* it MUST be.
*/
if (smb_node_is_dir(node)) {
if (op->create_options & FILE_NON_DIRECTORY_FILE) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_FILE_IS_A_DIRECTORY);
}
} else {
if ((op->create_options & FILE_DIRECTORY_FILE) ||
(op->nt_flags & NT_CREATE_FLAG_OPEN_TARGET_DIR)) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_NOT_A_DIRECTORY);
}
}
/*
* No more open should be accepted when "Delete on close"
* flag is set.
*/
if (node->flags & NODE_FLAGS_DELETE_ON_CLOSE) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_DELETE_PENDING);
}
/*
* Specified file already exists so the operation should fail.
*/
if (op->create_disposition == FILE_CREATE) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_OBJECT_NAME_COLLISION);
}
/*
* Windows seems to check read-only access before file
* sharing check.
*
* Check to see if the file is currently readonly (irrespective
* of whether this open will make it readonly).
*/
if (SMB_PATHFILE_IS_READONLY(sr, node)) {
/* Files data only */
if (!smb_node_is_dir(node)) {
if (op->desired_access & (FILE_WRITE_DATA |
FILE_APPEND_DATA)) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_ACCESS_DENIED);
}
}
}
if ((op->create_disposition == FILE_SUPERSEDE) ||
(op->create_disposition == FILE_OVERWRITE_IF) ||
(op->create_disposition == FILE_OVERWRITE)) {
if (!smb_sattr_check(op->fqi.fq_fattr.sa_dosattr,
op->dattr)) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_ACCESS_DENIED);
}
if (smb_node_is_dir(node)) {
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_ACCESS_DENIED);
}
}
/* MS-FSA 2.1.5.1.2 */
if (op->create_disposition == FILE_SUPERSEDE)
op->desired_access |= DELETE;
if ((op->create_disposition == FILE_OVERWRITE_IF) ||
(op->create_disposition == FILE_OVERWRITE))
op->desired_access |= FILE_WRITE_DATA;
status = smb_fsop_access(sr, sr->user_cr, node,
op->desired_access);
if (status != NT_STATUS_SUCCESS) {
smb_node_release(node);
smb_node_release(dnode);
/* SMB1 specific? NT_STATUS_PRIVILEGE_NOT_HELD */
if (status == NT_STATUS_PRIVILEGE_NOT_HELD) {
return (status);
} else {
return (NT_STATUS_ACCESS_DENIED);
}
}
if (max_requested) {
smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed);
op->desired_access |= max_allowed;
}
/*
* According to MS "dochelp" mail in Mar 2015, any handle
* on which read or write access is granted implicitly
* gets "read attributes", even if it was not requested.
* This avoids unexpected access failures later that
* would happen if these were not granted.
*/
if ((op->desired_access & FILE_DATA_ALL) != 0) {
op->desired_access |= (READ_CONTROL |
FILE_READ_ATTRIBUTES);
}
/*
* Oplock break is done prior to sharing checks as the break
* may cause other clients to close the file which would
* affect the sharing checks. This may block, so set the
* file opening count before oplock stuff.
*/
smb_node_inc_opening_count(node);
smb_open_oplock_break(sr, node);
smb_node_wrlock(node);
/*
* Check for sharing violations
*/
status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid,
op->desired_access, op->share_access);
if (status == NT_STATUS_SHARING_VIOLATION) {
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
return (status);
}
/*
* Go ahead with modifications as necessary.
*/
switch (op->create_disposition) {
case FILE_SUPERSEDE:
case FILE_OVERWRITE_IF:
case FILE_OVERWRITE:
op->dattr |= FILE_ATTRIBUTE_ARCHIVE;
/* Don't apply readonly bit until smb_ofile_close */
if (op->dattr & FILE_ATTRIBUTE_READONLY) {
op->created_readonly = B_TRUE;
op->dattr &= ~FILE_ATTRIBUTE_READONLY;
}
/*
* Truncate the file data here.
* We set alloc_size = op->dsize later,
* after we have an ofile. See:
* smb_set_open_attributes
*/
bzero(&new_attr, sizeof (new_attr));
new_attr.sa_dosattr = op->dattr;
new_attr.sa_vattr.va_size = 0;
new_attr.sa_mask = SMB_AT_DOSATTR | SMB_AT_SIZE;
rc = smb_fsop_setattr(sr, sr->user_cr, node, &new_attr);
if (rc != 0) {
smb_fsop_unshrlock(sr->user_cr, node, uniq_fid);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
return (smb_errno2status(rc));
}
/*
* If file is being replaced, remove existing streams
*/
if (SMB_IS_STREAM(node) == 0) {
status = smb_fsop_remove_streams(sr,
sr->user_cr, node);
if (status != 0) {
smb_fsop_unshrlock(sr->user_cr, node,
uniq_fid);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
smb_node_release(dnode);
return (status);
}
}
op->action_taken = SMB_OACT_TRUNCATED;
break;
default:
/*
* FILE_OPEN or FILE_OPEN_IF.
*/
/*
* Ignore any user-specified alloc_size for
* existing files, to avoid truncation in
* smb_set_open_attributes
*/
op->dsize = 0L;
op->action_taken = SMB_OACT_OPENED;
break;
}
} else {
/* Last component was not found. */
dnode = op->fqi.fq_dnode;
if (is_dir == 0)
is_stream = smb_is_stream_name(pn->pn_path);
if ((op->create_disposition == FILE_OPEN) ||
(op->create_disposition == FILE_OVERWRITE)) {
smb_node_release(dnode);
return (NT_STATUS_OBJECT_NAME_NOT_FOUND);
}
if (pn->pn_fname && smb_is_invalid_filename(pn->pn_fname)) {
smb_node_release(dnode);
return (NT_STATUS_OBJECT_NAME_INVALID);
}
/*
* lock the parent dir node in case another create
* request to the same parent directory comes in.
*/
smb_node_wrlock(dnode);
/* Don't apply readonly bit until smb_ofile_close */
if (op->dattr & FILE_ATTRIBUTE_READONLY) {
op->dattr &= ~FILE_ATTRIBUTE_READONLY;
op->created_readonly = B_TRUE;
}
bzero(&new_attr, sizeof (new_attr));
if ((op->crtime.tv_sec != 0) &&
(op->crtime.tv_sec != UINT_MAX)) {
new_attr.sa_mask |= SMB_AT_CRTIME;
new_attr.sa_crtime = op->crtime;
}
if (is_dir == 0) {
op->dattr |= FILE_ATTRIBUTE_ARCHIVE;
new_attr.sa_dosattr = op->dattr;
new_attr.sa_vattr.va_type = VREG;
new_attr.sa_vattr.va_mode = is_stream ? S_IRUSR :
S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
new_attr.sa_mask |=
SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE;
/*
* We set alloc_size = op->dsize later,
* after we have an ofile. See:
* smb_set_open_attributes
*/
rc = smb_fsop_create(sr, sr->user_cr, dnode,
op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode);
if (rc != 0) {
smb_node_unlock(dnode);
smb_node_release(dnode);
return (smb_errno2status(rc));
}
node = op->fqi.fq_fnode;
smb_node_inc_opening_count(node);
smb_node_wrlock(node);
status = smb_fsop_shrlock(sr->user_cr, node, uniq_fid,
op->desired_access, op->share_access);
if (status == NT_STATUS_SHARING_VIOLATION) {
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_delete_new_object(sr);
smb_node_release(node);
smb_node_unlock(dnode);
smb_node_release(dnode);
return (status);
}
} else {
op->dattr |= FILE_ATTRIBUTE_DIRECTORY;
new_attr.sa_dosattr = op->dattr;
new_attr.sa_vattr.va_type = VDIR;
new_attr.sa_vattr.va_mode = 0777;
new_attr.sa_mask |=
SMB_AT_DOSATTR | SMB_AT_TYPE | SMB_AT_MODE;
rc = smb_fsop_mkdir(sr, sr->user_cr, dnode,
op->fqi.fq_last_comp, &new_attr, &op->fqi.fq_fnode);
if (rc != 0) {
smb_node_unlock(dnode);
smb_node_release(dnode);
return (smb_errno2status(rc));
}
node = op->fqi.fq_fnode;
smb_node_inc_opening_count(node);
smb_node_wrlock(node);
}
created = B_TRUE;
op->action_taken = SMB_OACT_CREATED;
if (max_requested) {
smb_fsop_eaccess(sr, sr->user_cr, node, &max_allowed);
op->desired_access |= max_allowed;
}
/*
* We created created this object (we own it) so
* grant read/write attributes on this handle,
* even if that was not requested. This avoids
* unexpected access failures later that would
* happen if these were not granted.
*/
op->desired_access |= (READ_CONTROL |
FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES);
}
status = NT_STATUS_SUCCESS;
of = smb_ofile_open(sr, node, op, SMB_FTYPE_DISK, uniq_fid,
&err);
if (of == NULL) {
status = err.status;
}
/*
* We might have blocked in smb_ofile_open long enough so a
* tree disconnect might have happened. In that case, we've
* just added an ofile to a tree that's disconnecting, and
* need to undo that to avoid interfering with tear-down of
* the tree connection.
*/
if (status == NT_STATUS_SUCCESS &&
!smb_tree_is_connected(sr->tid_tree)) {
status = NT_STATUS_INVALID_PARAMETER;
}
/*
* This MUST be done after ofile creation, so that explicitly
* set timestamps can be remembered on the ofile, and the
* readonly flag will be stored "pending" on the node.
*/
if (status == NT_STATUS_SUCCESS) {
if ((rc = smb_set_open_attributes(sr, of)) != 0) {
status = smb_errno2status(rc);
}
}
if (status == NT_STATUS_SUCCESS) {
/*
* We've already done access checks above,
* and want this call to succeed even when
* !(desired_access & FILE_READ_ATTRIBUTES),
* so pass kcred here.
*/
op->fqi.fq_fattr.sa_mask = SMB_AT_ALL;
rc = smb_node_getattr(sr, node, zone_kcred(), of,
&op->fqi.fq_fattr);
if (rc != 0) {
status = NT_STATUS_INTERNAL_ERROR;
}
}
/*
* smb_fsop_unshrlock is a no-op if node is a directory
* smb_fsop_unshrlock is done in smb_ofile_close
*/
if (status != NT_STATUS_SUCCESS) {
if (of == NULL) {
smb_fsop_unshrlock(sr->user_cr, node, uniq_fid);
} else {
smb_ofile_close(of, 0);
smb_ofile_release(of);
}
if (created)
smb_delete_new_object(sr);
smb_node_unlock(node);
smb_node_dec_opening_count(node);
smb_node_release(node);
if (created)
smb_node_unlock(dnode);
smb_node_release(dnode);
return (status);
}
/*
* Propagate the write-through mode from the open params
* to the node: see the notes in the function header.
*/
if (sr->sr_cfg->skc_sync_enable ||
(op->create_options & FILE_WRITE_THROUGH))
node->flags |= NODE_FLAGS_WRITE_THROUGH;
/*
* Set up the fileid and dosattr in open_param for response
*/
op->fileid = op->fqi.fq_fattr.sa_vattr.va_nodeid;
op->dattr = op->fqi.fq_fattr.sa_dosattr;
/*
* Set up the file type in open_param for the response
*/
op->ftype = SMB_FTYPE_DISK;
sr->smb_fid = of->f_fid;
sr->fid_ofile = of;
if (smb_node_is_file(node)) {
smb_oplock_acquire(sr, node, of);
op->dsize = op->fqi.fq_fattr.sa_vattr.va_size;
} else {
/* directory or symlink */
op->op_oplock_level = SMB_OPLOCK_NONE;
op->dsize = 0;
}
smb_node_dec_opening_count(node);
smb_node_unlock(node);
if (created)
smb_node_unlock(dnode);
smb_node_release(node);
smb_node_release(dnode);
return (NT_STATUS_SUCCESS);
}
smb_sdrc_t
smb2_read(smb_request_t *sr)
{
smb_ofile_t *of = NULL;
smb_vdb_t *vdb = NULL;
struct mbuf *m = NULL;
uint16_t StructSize;
uint8_t Padding;
uint8_t DataOff;
uint32_t Length;
uint64_t Offset;
smb2fid_t smb2fid;
uint32_t MinCount;
uint32_t Channel;
uint32_t Remaining;
uint16_t ChanInfoOffset;
uint16_t ChanInfoLength;
uint32_t XferCount;
uint32_t status;
int rc = 0;
/*
* SMB2 Read request
*/
rc = smb_mbc_decodef(
&sr->smb_data,
"wb.lqqqlllww",
&StructSize, /* w */
&Padding, /* b. */
&Length, /* l */
&Offset, /* q */
&smb2fid.persistent, /* q */
&smb2fid.temporal, /* q */
&MinCount, /* l */
&Channel, /* l */
&Remaining, /* l */
&ChanInfoOffset, /* w */
&ChanInfoLength); /* w */
if (rc)
return (SDRC_ERROR);
if (StructSize != 49)
return (SDRC_ERROR);
status = smb2sr_lookup_fid(sr, &smb2fid);
if (status) {
smb2sr_put_error(sr, status);
return (SDRC_SUCCESS);
}
of = sr->fid_ofile;
if (Length > smb2_max_rwsize) {
smb2sr_put_error(sr, NT_STATUS_INVALID_PARAMETER);
return (SDRC_SUCCESS);
}
if (MinCount > Length)
MinCount = Length;
/* This is automatically free'd. */
vdb = smb_srm_zalloc(sr, sizeof (*vdb));
vdb->vdb_tag = 0;
vdb->vdb_uio.uio_iov = &vdb->vdb_iovec[0];
vdb->vdb_uio.uio_iovcnt = MAX_IOVEC;
vdb->vdb_uio.uio_resid = Length;
vdb->vdb_uio.uio_loffset = (offset_t)Offset;
vdb->vdb_uio.uio_segflg = UIO_SYSSPACE;
vdb->vdb_uio.uio_extflg = UIO_COPY_DEFAULT;
sr->raw_data.max_bytes = Length;
m = smb_mbuf_allocate(&vdb->vdb_uio);
switch (of->f_tree->t_res_type & STYPE_MASK) {
case STYPE_DISKTREE:
if (!smb_node_is_dir(of->f_node)) {
/* Check for conflicting locks. */
rc = smb_lock_range_access(sr, of->f_node,
Offset, Length, B_FALSE);
if (rc) {
rc = ERANGE;
break;
}
}
rc = smb_fsop_read(sr, of->f_cr, of->f_node, &vdb->vdb_uio);
break;
case STYPE_IPC:
rc = smb_opipe_read(sr, &vdb->vdb_uio);
break;
default:
case STYPE_PRINTQ:
rc = EACCES;
break;
}
/* How much data we moved. */
XferCount = Length - vdb->vdb_uio.uio_resid;
sr->raw_data.max_bytes = XferCount;
smb_mbuf_trim(m, XferCount);
MBC_ATTACH_MBUF(&sr->raw_data, m);
/*
* Checking the error return _after_ dealing with
* the returned data so that if m was allocated,
* it will be free'd via sr->raw_data cleanup.
*/
if (rc) {
smb2sr_put_errno(sr, rc);
return (SDRC_SUCCESS);
}
/*
* SMB2 Read reply
*/
DataOff = SMB2_HDR_SIZE + 16;
rc = smb_mbc_encodef(
&sr->reply,
"wb.lllC",
17, /* StructSize */ /* w */
DataOff, /* b. */
XferCount, /* l */
0, /* DataRemaining */ /* l */
0, /* reserved */ /* l */
&sr->raw_data); /* C */
if (rc)
return (SDRC_ERROR);
mutex_enter(&of->f_mutex);
of->f_seek_pos = Offset + XferCount;
mutex_exit(&of->f_mutex);
return (SDRC_SUCCESS);
}
/*
* smb_nt_transact_notify_change
*
* This function is responsible for processing NOTIFY CHANGE requests.
* Requests are stored in a global queue. This queue is processed when
* a monitored directory is changed or client cancels one of its already
* sent requests.
*/
smb_sdrc_t
smb_nt_transact_notify_change(struct smb_request *sr, struct smb_xa *xa)
{
uint32_t CompletionFilter;
unsigned char WatchTree;
smb_node_t *node;
if (smb_mbc_decodef(&xa->req_setup_mb, "lwb",
&CompletionFilter, &sr->smb_fid, &WatchTree) != 0)
return (SDRC_NOT_IMPLEMENTED);
smbsr_lookup_file(sr);
if (sr->fid_ofile == NULL) {
smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid);
return (SDRC_ERROR);
}
node = sr->fid_ofile->f_node;
if (!smb_node_is_dir(node)) {
/*
* Notify change requests are only valid on directories.
*/
smbsr_error(sr, NT_STATUS_NOT_A_DIRECTORY, 0, 0);
return (SDRC_ERROR);
}
mutex_enter(&sr->sr_mutex);
switch (sr->sr_state) {
case SMB_REQ_STATE_ACTIVE:
node->waiting_event++;
node->flags |= NODE_FLAGS_NOTIFY_CHANGE;
if ((node->flags & NODE_FLAGS_CHANGED) == 0) {
sr->sr_ncr.nc_node = node;
sr->sr_ncr.nc_flags = CompletionFilter;
if (WatchTree)
sr->sr_ncr.nc_flags |= NODE_FLAGS_WATCH_TREE;
sr->sr_keep = B_TRUE;
sr->sr_state = SMB_REQ_STATE_WAITING_EVENT;
smb_slist_insert_tail(&smb_ncr_list, sr);
/*
* Monitor events system-wide.
*
* XXX: smb_node_ref() and smb_node_release()
* take &node->n_lock. May need alternate forms
* of these routines if node->n_lock is taken
* around calls to smb_fem_fcn_install() and
* smb_fem_fcn_uninstall().
*/
smb_fem_fcn_install(node);
mutex_exit(&sr->sr_mutex);
return (SDRC_SR_KEPT);
} else {
/* node already changed, reply immediately */
if (--node->waiting_event == 0)
node->flags &=
~(NODE_FLAGS_NOTIFY_CHANGE |
NODE_FLAGS_CHANGED);
mutex_exit(&sr->sr_mutex);
return (SDRC_SUCCESS);
}
case SMB_REQ_STATE_CANCELED:
mutex_exit(&sr->sr_mutex);
smbsr_error(sr, NT_STATUS_CANCELLED, 0, 0);
return (SDRC_ERROR);
default:
ASSERT(0);
mutex_exit(&sr->sr_mutex);
return (SDRC_SUCCESS);
}
}
smb_sdrc_t
smb_com_nt_create_andx(struct smb_request *sr)
{
struct open_param *op = &sr->arg.open;
unsigned char DirFlag;
smb_attr_t attr;
smb_node_t *node;
int rc;
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->tid_tree,
(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;
}
op->op_oplock_levelII = B_TRUE;
if (smb_common_open(sr) != NT_STATUS_SUCCESS)
return (SDRC_ERROR);
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->fid_ofile);
node = sr->fid_ofile->f_node;
DirFlag = smb_node_is_dir(node) ? 1 : 0;
if (smb_node_getattr(sr, node, &attr) != 0) {
smbsr_error(sr, NT_STATUS_INTERNAL_ERROR,
ERRDOS, ERROR_INTERNAL_ERROR);
return (SDRC_ERROR);
}
rc = smbsr_encode_result(sr, 34, 0, "bb.wbwlTTTTlqqwwbw",
34,
sr->andx_com,
0x67,
op->op_oplock_level,
sr->smb_fid,
op->action_taken,
&attr.sa_crtime,
&attr.sa_vattr.va_atime,
&attr.sa_vattr.va_mtime,
&attr.sa_vattr.va_ctime,
op->dattr & FILE_ATTRIBUTE_MASK,
attr.sa_allocsz,
attr.sa_vattr.va_size,
op->ftype,
op->devstate,
DirFlag,
0);
break;
case STYPE_IPC:
rc = smbsr_encode_result(sr, 34, 0, "bb.wbwlqqqqlqqwwbw",
34,
sr->andx_com,
0x67,
0,
sr->smb_fid,
op->action_taken,
0LL,
0LL,
0LL,
0LL,
FILE_ATTRIBUTE_NORMAL,
0x1000LL,
0LL,
op->ftype,
op->devstate,
0,
0);
break;
default:
smbsr_error(sr, NT_STATUS_INVALID_DEVICE_REQUEST,
ERRDOS, ERROR_INVALID_FUNCTION);
return (SDRC_ERROR);
}
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
/*
* smb_make_link
*
* Creating a hard link (adding an additional name) for a file.
*
* If the source and destination are identical, we go through all
* the checks but we don't create a link.
*
* If the file is a symlink we create the hardlink on the target
* of the symlink (i.e. use SMB_FOLLOW_LINKS when looking up src).
* If the target of the symlink does not exist we fail with ENOENT.
*
* Returns NT status values.
*
* Similar to smb_common_rename() above.
*/
uint32_t
smb_make_link(smb_request_t *sr, smb_fqi_t *src_fqi, smb_fqi_t *dst_fqi)
{
smb_node_t *tnode;
char *path;
int rc;
tnode = sr->tid_tree->t_snode;
path = dst_fqi->fq_path.pn_path;
/* Cannnot create link on named stream */
if (smb_is_stream_name(src_fqi->fq_path.pn_path) ||
smb_is_stream_name(dst_fqi->fq_path.pn_path)) {
return (NT_STATUS_INVALID_PARAMETER);
}
/* The source node may already have been provided */
if (src_fqi->fq_fnode) {
smb_node_start_crit(src_fqi->fq_fnode, RW_READER);
smb_node_ref(src_fqi->fq_fnode);
smb_node_ref(src_fqi->fq_dnode);
} else {
/* lookup and validate src node */
rc = smb_rename_lookup_src(sr);
if (rc != 0)
return (smb_rename_errno2status(rc));
}
/* Not valid to create hardlink for directory */
if (smb_node_is_dir(src_fqi->fq_fnode)) {
smb_rename_release_src(sr);
return (NT_STATUS_FILE_IS_A_DIRECTORY);
}
/*
* Find the destination dnode and last component.
* May already be provided, i.e. when called via
* SMB1 trans2 setinfo.
*/
if (dst_fqi->fq_dnode) {
smb_node_ref(dst_fqi->fq_dnode);
} else {
rc = smb_pathname_reduce(sr, sr->user_cr, path, tnode, tnode,
&dst_fqi->fq_dnode, dst_fqi->fq_last_comp);
if (rc != 0) {
smb_rename_release_src(sr);
return (smb_rename_errno2status(rc));
}
}
/* If CI name match in same directory, we're done */
if ((src_fqi->fq_dnode == dst_fqi->fq_dnode) &&
(smb_strcasecmp(src_fqi->fq_fnode->od_name,
dst_fqi->fq_last_comp, 0) == 0)) {
smb_rename_release_src(sr);
smb_node_release(dst_fqi->fq_dnode);
return (0);
}
if (smb_is_invalid_filename(dst_fqi->fq_last_comp)) {
smb_rename_release_src(sr);
smb_node_release(dst_fqi->fq_dnode);
return (NT_STATUS_OBJECT_NAME_INVALID);
}
/* Lookup the destination node. It MUST NOT exist. */
rc = smb_fsop_lookup(sr, sr->user_cr, 0, tnode,
dst_fqi->fq_dnode, dst_fqi->fq_last_comp, &dst_fqi->fq_fnode);
if (rc == 0) {
smb_node_release(dst_fqi->fq_fnode);
rc = EEXIST;
}
if (rc != ENOENT) {
smb_rename_release_src(sr);
smb_node_release(dst_fqi->fq_dnode);
return (smb_rename_errno2status(rc));
}
rc = smb_fsop_link(sr, sr->user_cr, src_fqi->fq_fnode,
dst_fqi->fq_dnode, dst_fqi->fq_last_comp);
if (rc == 0) {
smb_node_notify_change(dst_fqi->fq_dnode,
FILE_ACTION_ADDED, dst_fqi->fq_last_comp);
}
smb_rename_release_src(sr);
smb_node_release(dst_fqi->fq_dnode);
return (smb_rename_errno2status(rc));
}
smb_sdrc_t
smb_nt_transact_create(smb_request_t *sr, smb_xa_t *xa)
{
struct open_param *op = &sr->arg.open;
uint8_t DirFlag;
smb_attr_t attr;
smb_ofile_t *of;
int rc;
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;
}
op->op_oplock_levelII = B_TRUE;
if (smb_common_open(sr) != NT_STATUS_SUCCESS)
return (SDRC_ERROR);
/*
* 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(of);
DirFlag = smb_node_is_dir(of->f_node) ? 1 : 0;
bzero(&attr, sizeof (attr));
attr.sa_mask = SMB_AT_ALL;
rc = smb_node_getattr(sr, of->f_node, of->f_cr, of, &attr);
if (rc != 0) {
smbsr_errno(sr, rc);
goto errout;
}
(void) smb_mbc_encodef(&xa->rep_param_mb, "b.wllTTTTlqqwwb",
op->op_oplock_level,
sr->smb_fid,
op->action_taken,
0, /* EaErrorOffset */
&attr.sa_crtime,
&attr.sa_vattr.va_atime,
&attr.sa_vattr.va_mtime,
&attr.sa_vattr.va_ctime,
op->dattr & FILE_ATTRIBUTE_MASK,
attr.sa_allocsz,
attr.sa_vattr.va_size,
op->ftype,
op->devstate,
DirFlag);
break;
case STYPE_IPC:
bzero(&attr, sizeof (smb_attr_t));
(void) smb_mbc_encodef(&xa->rep_param_mb, "b.wllTTTTlqqwwb",
0,
sr->smb_fid,
op->action_taken,
0, /* EaErrorOffset */
&attr.sa_crtime,
&attr.sa_vattr.va_atime,
&attr.sa_vattr.va_mtime,
&attr.sa_vattr.va_ctime,
op->dattr,
0x1000LL,
0LL,
op->ftype,
op->devstate,
0);
break;
default:
smbsr_error(sr, NT_STATUS_INVALID_DEVICE_REQUEST,
ERRDOS, ERROR_INVALID_FUNCTION);
goto errout;
}
return (SDRC_SUCCESS);
errout:
smb_ofile_close(of, 0);
return (SDRC_ERROR);
}
smb_sdrc_t
smb_com_check_directory(smb_request_t *sr)
{
int rc;
smb_fqi_t *fqi;
smb_node_t *tnode;
smb_node_t *node;
char *path;
smb_pathname_t *pn;
if (STYPE_ISIPC(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;
pn = &fqi->fq_path;
if (pn->pn_path[0] == '\0') {
rc = smbsr_encode_empty_result(sr);
return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
}
smb_pathname_init(sr, pn, pn->pn_path);
if (!smb_pathname_validate(sr, pn) ||
!smb_validate_dirname(sr, pn)) {
return (SDRC_ERROR);
}
path = pn->pn_path;
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);
}
node = fqi->fq_fnode;
if (!smb_node_is_dir(node)) {
smbsr_error(sr, NT_STATUS_NOT_A_DIRECTORY,
ERRDOS, ERROR_PATH_NOT_FOUND);
smb_node_release(node);
return (SDRC_ERROR);
}
if ((sr->smb_flg2 & SMB_FLAGS2_DFS) && smb_node_is_dfslink(node)) {
smbsr_error(sr, NT_STATUS_PATH_NOT_COVERED, ERRSRV, ERRbadpath);
smb_node_release(node);
return (SDRC_ERROR);
}
rc = smb_fsop_access(sr, sr->user_cr, node, FILE_TRAVERSE);
smb_node_release(node);
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);
}
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;
smb_pathname_init(sr, &fqi->fq_path, fqi->fq_path.pn_path);
if (!smb_pathname_validate(sr, &fqi->fq_path) ||
!smb_validate_dirname(sr, &fqi->fq_path)) {
return (SDRC_ERROR);
}
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);
}
/*
* Delete should fail if this is the root of a share
* or a DFS link
*/
if ((fqi->fq_fnode == tnode) || smb_node_is_dfslink(fqi->fq_fnode)) {
smbsr_error(sr, NT_STATUS_ACCESS_DENIED,
ERRDOS, ERROR_ACCESS_DENIED);
smb_node_release(fqi->fq_dnode);
smb_node_release(fqi->fq_fnode);
return (SDRC_ERROR);
}
if (!smb_node_is_dir(fqi->fq_fnode)) {
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);
}
/*
* Using kcred because we just want the DOS attrs
* and don't want access errors for this.
*/
fqi->fq_fattr.sa_mask = SMB_AT_DOSATTR;
rc = smb_node_getattr(sr, fqi->fq_fnode, zone_kcred(), NULL,
&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_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);
}
