/*
* smb_pathname_validate
*
* Perform basic validation of pn:
* - If first component of pn->path is ".." -> PATH_SYNTAX_BAD
* - If there are wildcards in pn->pn_pname -> OBJECT_NAME_INVALID
* - If fname is "." -> INVALID_OBJECT_NAME
*
* On unix .. at the root of a file system links to the root. Thus
* an attempt to lookup "/../../.." will be the same as looking up "/"
* CIFs clients expect the above to result in
* NT_STATUS_OBJECT_PATH_SYNTAX_BAD. It is currently not possible
* (and questionable if it's desirable) to deal with all cases
* but paths beginning with \\.. are handled.
*
* Returns: B_TRUE if pn is valid,
* otherwise returns B_FALSE and sets error status in sr.
*/
boolean_t
smb_pathname_validate(smb_request_t *sr, smb_pathname_t *pn)
{
char *path = pn->pn_path;
/* ignore any initial "\\" */
path += strspn(path, "\\");
/* If first component of path is ".." -> PATH_SYNTAX_BAD */
if ((strcmp(path, "..") == 0) || (strncmp(path, "..\\", 3) == 0)) {
smbsr_error(sr, NT_STATUS_OBJECT_PATH_SYNTAX_BAD,
ERRDOS, ERROR_BAD_PATHNAME);
return (B_FALSE);
}
/* If there are wildcards in pn->pn_pname -> OBJECT_NAME_INVALID */
if (pn->pn_pname && smb_contains_wildcards(pn->pn_pname)) {
smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
ERRDOS, ERROR_INVALID_NAME);
return (B_FALSE);
}
/* If fname is "." -> INVALID_OBJECT_NAME */
if (pn->pn_fname && (strcmp(pn->pn_fname, ".") == 0)) {
smbsr_error(sr, NT_STATUS_OBJECT_NAME_INVALID,
ERRDOS, ERROR_PATH_NOT_FOUND);
return (B_FALSE);
}
return (B_TRUE);
}
/*
* smb_odir_create
* Allocate and populate an odir obect and add it to the tree's list.
*/
static uint16_t
smb_odir_create(smb_request_t *sr, smb_node_t *dnode,
char *pattern, uint16_t sattr, cred_t *cr)
{
smb_odir_t *od;
smb_tree_t *tree;
uint16_t odid;
ASSERT(sr);
ASSERT(sr->sr_magic == SMB_REQ_MAGIC);
ASSERT(sr->tid_tree);
ASSERT(sr->tid_tree->t_magic == SMB_TREE_MAGIC);
ASSERT(dnode);
ASSERT(dnode->n_magic == SMB_NODE_MAGIC);
tree = sr->tid_tree;
if (smb_idpool_alloc(&tree->t_odid_pool, &odid)) {
smbsr_error(sr, NT_STATUS_TOO_MANY_OPENED_FILES,
ERRDOS, ERROR_TOO_MANY_OPEN_FILES);
return (0);
}
od = kmem_cache_alloc(smb_cache_odir, KM_SLEEP);
bzero(od, sizeof (smb_odir_t));
mutex_init(&od->d_mutex, NULL, MUTEX_DEFAULT, NULL);
od->d_refcnt = 0;
od->d_state = SMB_ODIR_STATE_OPEN;
od->d_magic = SMB_ODIR_MAGIC;
od->d_opened_by_pid = sr->smb_pid;
od->d_session = tree->t_session;
od->d_cred = cr;
/*
* grab a ref for od->d_user
* released in smb_odir_delete()
*/
smb_user_hold_internal(sr->uid_user);
od->d_user = sr->uid_user;
od->d_tree = tree;
od->d_dnode = dnode;
smb_node_ref(dnode);
od->d_odid = odid;
od->d_sattr = sattr;
(void) strlcpy(od->d_pattern, pattern, sizeof (od->d_pattern));
od->d_flags = 0;
if (smb_contains_wildcards(od->d_pattern))
od->d_flags |= SMB_ODIR_FLAG_WILDCARDS;
if (vfs_has_feature(dnode->vp->v_vfsp, VFSFT_DIRENTFLAGS))
od->d_flags |= SMB_ODIR_FLAG_EDIRENT;
if (smb_tree_has_feature(tree, SMB_TREE_CASEINSENSITIVE))
od->d_flags |= SMB_ODIR_FLAG_IGNORE_CASE;
if (smb_tree_has_feature(tree, SMB_TREE_SHORTNAMES))
od->d_flags |= SMB_ODIR_FLAG_SHORTNAMES;
if (SMB_TREE_SUPPORTS_CATIA(sr))
od->d_flags |= SMB_ODIR_FLAG_CATIA;
if (SMB_TREE_SUPPORTS_ABE(sr))
od->d_flags |= SMB_ODIR_FLAG_ABE;
if (dnode->flags & NODE_XATTR_DIR)
od->d_flags |= SMB_ODIR_FLAG_XATTR;
od->d_eof = B_FALSE;
smb_llist_enter(&tree->t_odir_list, RW_WRITER);
smb_llist_insert_tail(&tree->t_odir_list, od);
smb_llist_exit(&tree->t_odir_list);
atomic_inc_32(&tree->t_session->s_dir_cnt);
return (odid);
}
