NTSTATUS check_veto_path(connection_struct *conn, const char *name)
{
if (IS_VETO_PATH(conn, name)) {
/* Is it not dot or dot dot. */
if (!(ISDOT(name) || ISDOTDOT(name))) {
DEBUG(5,("check_veto_path: file path name %s vetoed\n",
name));
return map_nt_error_from_unix(ENOENT);
}
}
return NT_STATUS_OK;
}
NTSTATUS check_name(connection_struct *conn, const pstring name)
{
if (IS_VETO_PATH(conn, name)) {
/* Is it not dot or dot dot. */
if (!((name[0] == '.') && (!name[1] || (name[1] == '.' && !name[2])))) {
DEBUG(5,("check_name: file path name %s vetoed\n",name));
return map_nt_error_from_unix(ENOENT);
}
}
if (!lp_widelinks(SNUM(conn)) || !lp_symlinks(SNUM(conn))) {
NTSTATUS status = reduce_name(conn,name);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(5,("check_name: name %s failed with %s\n",name, nt_errstr(status)));
return status;
}
}
return NT_STATUS_OK;
}
static NTSTATUS rmdir_internals(TALLOC_CTX *ctx, files_struct *fsp)
{
connection_struct *conn = fsp->conn;
struct smb_filename *smb_dname = fsp->fsp_name;
int ret;
SMB_ASSERT(!is_ntfs_stream_smb_fname(smb_dname));
/* Might be a symlink. */
if(SMB_VFS_LSTAT(conn, smb_dname) != 0) {
return map_nt_error_from_unix(errno);
}
if (S_ISLNK(smb_dname->st.st_ex_mode)) {
/* Is what it points to a directory ? */
if(SMB_VFS_STAT(conn, smb_dname) != 0) {
return map_nt_error_from_unix(errno);
}
if (!(S_ISDIR(smb_dname->st.st_ex_mode))) {
return NT_STATUS_NOT_A_DIRECTORY;
}
ret = SMB_VFS_UNLINK(conn, smb_dname);
} else {
ret = SMB_VFS_RMDIR(conn, smb_dname->base_name);
}
if (ret == 0) {
notify_fname(conn, NOTIFY_ACTION_REMOVED,
FILE_NOTIFY_CHANGE_DIR_NAME,
smb_dname->base_name);
return NT_STATUS_OK;
}
if(((errno == ENOTEMPTY)||(errno == EEXIST)) && *lp_veto_files(talloc_tos(), SNUM(conn))) {
/*
* Check to see if the only thing in this directory are
* vetoed files/directories. If so then delete them and
* retry. If we fail to delete any of them (and we *don't*
* do a recursive delete) then fail the rmdir.
*/
SMB_STRUCT_STAT st;
const char *dname = NULL;
char *talloced = NULL;
long dirpos = 0;
struct smb_Dir *dir_hnd = OpenDir(talloc_tos(), conn,
smb_dname->base_name, NULL,
0);
if(dir_hnd == NULL) {
errno = ENOTEMPTY;
goto err;
}
while ((dname = ReadDirName(dir_hnd, &dirpos, &st,
&talloced)) != NULL) {
if((strcmp(dname, ".") == 0) || (strcmp(dname, "..")==0)) {
TALLOC_FREE(talloced);
continue;
}
if (!is_visible_file(conn, smb_dname->base_name, dname,
&st, false)) {
TALLOC_FREE(talloced);
continue;
}
if(!IS_VETO_PATH(conn, dname)) {
TALLOC_FREE(dir_hnd);
TALLOC_FREE(talloced);
errno = ENOTEMPTY;
goto err;
}
TALLOC_FREE(talloced);
}
/* We only have veto files/directories.
* Are we allowed to delete them ? */
if(!lp_delete_veto_files(SNUM(conn))) {
TALLOC_FREE(dir_hnd);
errno = ENOTEMPTY;
goto err;
}
/* Do a recursive delete. */
RewindDir(dir_hnd,&dirpos);
while ((dname = ReadDirName(dir_hnd, &dirpos, &st,
&talloced)) != NULL) {
struct smb_filename *smb_dname_full = NULL;
char *fullname = NULL;
bool do_break = true;
if (ISDOT(dname) || ISDOTDOT(dname)) {
TALLOC_FREE(talloced);
continue;
}
if (!is_visible_file(conn, smb_dname->base_name, dname,
&st, false)) {
TALLOC_FREE(talloced);
continue;
}
fullname = talloc_asprintf(ctx,
"%s/%s",
smb_dname->base_name,
dname);
if(!fullname) {
errno = ENOMEM;
goto err_break;
}
smb_dname_full = synthetic_smb_fname(
talloc_tos(), fullname, NULL, NULL);
if (smb_dname_full == NULL) {
errno = ENOMEM;
goto err_break;
}
if(SMB_VFS_LSTAT(conn, smb_dname_full) != 0) {
goto err_break;
}
if(smb_dname_full->st.st_ex_mode & S_IFDIR) {
if(!recursive_rmdir(ctx, conn,
smb_dname_full)) {
goto err_break;
}
if(SMB_VFS_RMDIR(conn,
smb_dname_full->base_name) != 0) {
goto err_break;
}
} else if(SMB_VFS_UNLINK(conn, smb_dname_full) != 0) {
goto err_break;
}
/* Successful iteration. */
do_break = false;
err_break:
TALLOC_FREE(fullname);
TALLOC_FREE(smb_dname_full);
TALLOC_FREE(talloced);
if (do_break)
break;
}
TALLOC_FREE(dir_hnd);
/* Retry the rmdir */
ret = SMB_VFS_RMDIR(conn, smb_dname->base_name);
}
err:
if (ret != 0) {
DEBUG(3,("rmdir_internals: couldn't remove directory %s : "
"%s\n", smb_fname_str_dbg(smb_dname),
strerror(errno)));
return map_nt_error_from_unix(errno);
}
notify_fname(conn, NOTIFY_ACTION_REMOVED,
FILE_NOTIFY_CHANGE_DIR_NAME,
smb_dname->base_name);
return NT_STATUS_OK;
}
