예제 #1
0
static NTSTATUS store_acl_blob_fsp(vfs_handle_struct *handle,
				files_struct *fsp,
				DATA_BLOB *pblob)
{
	int ret;
	int saved_errno = 0;

	DEBUG(10,("store_acl_blob_fsp: storing blob length %u on file %s\n",
		  (unsigned int)pblob->length, fsp_str_dbg(fsp)));

	become_root();
	if (fsp->fh->fd != -1) {
		ret = SMB_VFS_FSETXATTR(fsp, XATTR_NTACL_NAME,
			pblob->data, pblob->length, 0);
	} else {
		ret = SMB_VFS_SETXATTR(fsp->conn, fsp->fsp_name->base_name,
				XATTR_NTACL_NAME,
				pblob->data, pblob->length, 0);
	}
	if (ret) {
		saved_errno = errno;
	}
	unbecome_root();
	if (ret) {
		DEBUG(5, ("store_acl_blob_fsp: setting attr failed for file %s"
			"with error %s\n",
			fsp_str_dbg(fsp),
			strerror(saved_errno) ));
		errno = saved_errno;
		return map_nt_error_from_unix(saved_errno);
	}
	return NT_STATUS_OK;
}
예제 #2
0
static bool get_ea_dos_attribute(connection_struct *conn,
				 struct smb_filename *smb_fname,
				 uint32 *pattr)
{
	struct xattr_DOSATTRIB dosattrib;
	enum ndr_err_code ndr_err;
	DATA_BLOB blob;
	ssize_t sizeret;
	fstring attrstr;
	uint32_t dosattr;

	if (!lp_store_dos_attributes(SNUM(conn))) {
		return False;
	}

	/* Don't reset pattr to zero as we may already have filename-based attributes we
	   need to preserve. */

	sizeret = SMB_VFS_GETXATTR(conn, smb_fname->base_name,
				   SAMBA_XATTR_DOS_ATTRIB, attrstr,
				   sizeof(attrstr));
	if (sizeret == -1) {
		if (errno == ENOSYS
#if defined(ENOTSUP)
			|| errno == ENOTSUP) {
#else
				) {
#endif
			DEBUG(1,("get_ea_dos_attribute: Cannot get attribute "
				 "from EA on file %s: Error = %s\n",
				 smb_fname_str_dbg(smb_fname),
				 strerror(errno)));
			set_store_dos_attributes(SNUM(conn), False);
		}
		return False;
	}

	blob.data = (uint8_t *)attrstr;
	blob.length = sizeret;

	ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
			(ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);

	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
		DEBUG(1,("get_ea_dos_attribute: bad ndr decode "
			 "from EA on file %s: Error = %s\n",
			 smb_fname_str_dbg(smb_fname),
			 ndr_errstr(ndr_err)));
		return false;
	}

	DEBUG(10,("get_ea_dos_attribute: %s attr = %s\n",
		  smb_fname_str_dbg(smb_fname), dosattrib.attrib_hex));

	switch (dosattrib.version) {
		case 0xFFFF:
			dosattr = dosattrib.info.compatinfoFFFF.attrib;
			break;
		case 1:
			dosattr = dosattrib.info.info1.attrib;
			if (!null_nttime(dosattrib.info.info1.create_time)) {
				struct timespec create_time =
					nt_time_to_unix_timespec(
						dosattrib.info.info1.create_time);

				update_stat_ex_create_time(&smb_fname->st,
							create_time);

				DEBUG(10,("get_ea_dos_attribute: file %s case 1 "
					"set btime %s\n",
					smb_fname_str_dbg(smb_fname),
					time_to_asc(convert_timespec_to_time_t(
						create_time)) ));
			}
			break;
		case 2:
			dosattr = dosattrib.info.oldinfo2.attrib;
			/* Don't know what flags to check for this case. */
			break;
		case 3:
			dosattr = dosattrib.info.info3.attrib;
			if ((dosattrib.info.info3.valid_flags & XATTR_DOSINFO_CREATE_TIME) &&
					!null_nttime(dosattrib.info.info3.create_time)) {
				struct timespec create_time =
					nt_time_to_unix_timespec(
						dosattrib.info.info3.create_time);

				update_stat_ex_create_time(&smb_fname->st,
							create_time);

				DEBUG(10,("get_ea_dos_attribute: file %s case 3 "
					"set btime %s\n",
					smb_fname_str_dbg(smb_fname),
					time_to_asc(convert_timespec_to_time_t(
						create_time)) ));
			}
			break;
		default:
			DEBUG(1,("get_ea_dos_attribute: Badly formed DOSATTRIB on "
				 "file %s - %s\n", smb_fname_str_dbg(smb_fname),
				 attrstr));
	                return false;
	}

	if (S_ISDIR(smb_fname->st.st_ex_mode)) {
		dosattr |= FILE_ATTRIBUTE_DIRECTORY;
	}
	/* FILE_ATTRIBUTE_SPARSE is valid on get but not on set. */
	*pattr = (uint32)(dosattr & (SAMBA_ATTRIBUTES_MASK|FILE_ATTRIBUTE_SPARSE));

	DEBUG(8,("get_ea_dos_attribute returning (0x%x)", dosattr));

	if (dosattr & FILE_ATTRIBUTE_HIDDEN) DEBUG(8, ("h"));
	if (dosattr & FILE_ATTRIBUTE_READONLY ) DEBUG(8, ("r"));
	if (dosattr & FILE_ATTRIBUTE_SYSTEM) DEBUG(8, ("s"));
	if (dosattr & FILE_ATTRIBUTE_DIRECTORY   ) DEBUG(8, ("d"));
	if (dosattr & FILE_ATTRIBUTE_ARCHIVE  ) DEBUG(8, ("a"));

	DEBUG(8,("\n"));

	return True;
}

/****************************************************************************
 Set DOS attributes in an EA.
 Also sets the create time.
****************************************************************************/

static bool set_ea_dos_attribute(connection_struct *conn,
				 struct smb_filename *smb_fname,
				 uint32 dosmode)
{
	struct xattr_DOSATTRIB dosattrib;
	enum ndr_err_code ndr_err;
	DATA_BLOB blob;

	ZERO_STRUCT(dosattrib);
	ZERO_STRUCT(blob);

	dosattrib.version = 3;
	dosattrib.info.info3.valid_flags = XATTR_DOSINFO_ATTRIB|
					XATTR_DOSINFO_CREATE_TIME;
	dosattrib.info.info3.attrib = dosmode;
	dosattrib.info.info3.create_time = unix_timespec_to_nt_time(
				smb_fname->st.st_ex_btime);

	DEBUG(10,("set_ea_dos_attributes: set attribute 0x%x, btime = %s on file %s\n",
		(unsigned int)dosmode,
		time_to_asc(convert_timespec_to_time_t(smb_fname->st.st_ex_btime)),
		smb_fname_str_dbg(smb_fname) ));

	ndr_err = ndr_push_struct_blob(
			&blob, talloc_tos(), &dosattrib,
			(ndr_push_flags_fn_t)ndr_push_xattr_DOSATTRIB);

	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
		DEBUG(5, ("create_acl_blob: ndr_push_xattr_DOSATTRIB failed: %s\n",
			ndr_errstr(ndr_err)));
		return false;
	}

	if (blob.data == NULL || blob.length == 0) {
		return false;
	}

	if (SMB_VFS_SETXATTR(conn, smb_fname->base_name,
			     SAMBA_XATTR_DOS_ATTRIB, blob.data, blob.length,
			     0) == -1) {
		bool ret = false;
		bool need_close = false;
		files_struct *fsp = NULL;

		if((errno != EPERM) && (errno != EACCES)) {
			if (errno == ENOSYS
#if defined(ENOTSUP)
				|| errno == ENOTSUP) {
#else
				) {
#endif
				DEBUG(1,("set_ea_dos_attributes: Cannot set "
					 "attribute EA on file %s: Error = %s\n",
					 smb_fname_str_dbg(smb_fname),
					 strerror(errno) ));
				set_store_dos_attributes(SNUM(conn), False);
			}
			return false;
		}

		/* We want DOS semantics, ie allow non owner with write permission to change the
			bits on a file. Just like file_ntimes below.
		*/

		/* Check if we have write access. */
		if(!CAN_WRITE(conn) || !lp_dos_filemode(SNUM(conn)))
			return false;

		if (!can_write_to_file(conn, smb_fname)) {
			return false;
		}

		/*
		 * We need to get an open file handle to do the
		 * metadata operation under root.
		 */

		if (!NT_STATUS_IS_OK(get_file_handle_for_metadata(conn,
						smb_fname,
						&fsp,
						&need_close))) {
			return false;
		}

		become_root();
		if (SMB_VFS_FSETXATTR(fsp,
				     SAMBA_XATTR_DOS_ATTRIB, blob.data,
				     blob.length, 0) == 0) {
			ret = true;
		}
		unbecome_root();
		if (need_close) {
			close_file(NULL, fsp, NORMAL_CLOSE);
		}
		return ret;
	}
	DEBUG(10,("set_ea_dos_attribute: set EA 0x%x on file %s\n",
		(unsigned int)dosmode,
		smb_fname_str_dbg(smb_fname)));
	return true;
}

/****************************************************************************
 Change a unix mode to a dos mode for an ms dfs link.
****************************************************************************/

uint32 dos_mode_msdfs(connection_struct *conn,
		      const struct smb_filename *smb_fname)
{
	uint32 result = 0;

	DEBUG(8,("dos_mode_msdfs: %s\n", smb_fname_str_dbg(smb_fname)));

	if (!VALID_STAT(smb_fname->st)) {
		return 0;
	}

	/* First do any modifications that depend on the path name. */
	/* hide files with a name starting with a . */
	if (lp_hide_dot_files(SNUM(conn))) {
		const char *p = strrchr_m(smb_fname->base_name, '/');
		if (p) {
			p++;
		} else {
			p = smb_fname->base_name;
		}

		/* Only . and .. are not hidden. */
		if (p[0] == '.' && !((p[1] == '\0') ||
				(p[1] == '.' && p[2] == '\0'))) {
			result |= FILE_ATTRIBUTE_HIDDEN;
		}
	}

	result |= dos_mode_from_sbuf(conn, smb_fname);

	/* Optimization : Only call is_hidden_path if it's not already
	   hidden. */
	if (!(result & FILE_ATTRIBUTE_HIDDEN) &&
	    IS_HIDDEN_PATH(conn, smb_fname->base_name)) {
		result |= FILE_ATTRIBUTE_HIDDEN;
	}

	if (result == 0) {
		result = FILE_ATTRIBUTE_NORMAL;
	}

	result = filter_mode_by_protocol(result);

	/*
	 * Add in that it is a reparse point
	 */
	result |= FILE_ATTRIBUTE_REPARSE_POINT;

	DEBUG(8,("dos_mode_msdfs returning "));

	if (result & FILE_ATTRIBUTE_HIDDEN) DEBUG(8, ("h"));
	if (result & FILE_ATTRIBUTE_READONLY ) DEBUG(8, ("r"));
	if (result & FILE_ATTRIBUTE_SYSTEM) DEBUG(8, ("s"));
	if (result & FILE_ATTRIBUTE_DIRECTORY   ) DEBUG(8, ("d"));
	if (result & FILE_ATTRIBUTE_ARCHIVE  ) DEBUG(8, ("a"));
	if (result & FILE_ATTRIBUTE_SPARSE ) DEBUG(8, ("[sparse]"));

	DEBUG(8,("\n"));

	return(result);
}
예제 #3
0
static bool set_ea_dos_attribute(connection_struct *conn,
				 struct smb_filename *smb_fname,
				 uint32_t dosmode)
{
	struct xattr_DOSATTRIB dosattrib;
	enum ndr_err_code ndr_err;
	DATA_BLOB blob;

	ZERO_STRUCT(dosattrib);
	ZERO_STRUCT(blob);

	dosattrib.version = 3;
	dosattrib.info.info3.valid_flags = XATTR_DOSINFO_ATTRIB|
					XATTR_DOSINFO_CREATE_TIME;
	dosattrib.info.info3.attrib = dosmode;
	dosattrib.info.info3.create_time = unix_timespec_to_nt_time(
				smb_fname->st.st_ex_btime);

	DEBUG(10,("set_ea_dos_attributes: set attribute 0x%x, btime = %s on file %s\n",
		(unsigned int)dosmode,
		time_to_asc(convert_timespec_to_time_t(smb_fname->st.st_ex_btime)),
		smb_fname_str_dbg(smb_fname) ));

	ndr_err = ndr_push_struct_blob(
			&blob, talloc_tos(), &dosattrib,
			(ndr_push_flags_fn_t)ndr_push_xattr_DOSATTRIB);

	if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
		DEBUG(5, ("create_acl_blob: ndr_push_xattr_DOSATTRIB failed: %s\n",
			ndr_errstr(ndr_err)));
		return false;
	}

	if (blob.data == NULL || blob.length == 0) {
		return false;
	}

	if (SMB_VFS_SETXATTR(conn, smb_fname->base_name,
			     SAMBA_XATTR_DOS_ATTRIB, blob.data, blob.length,
			     0) == -1) {
		bool ret = false;
		bool need_close = false;
		files_struct *fsp = NULL;

		if((errno != EPERM) && (errno != EACCES)) {
			DBG_INFO("Cannot set "
				 "attribute EA on file %s: Error = %s\n",
				 smb_fname_str_dbg(smb_fname), strerror(errno));
			return false;
		}

		/* We want DOS semantics, ie allow non owner with write permission to change the
			bits on a file. Just like file_ntimes below.
		*/

		/* Check if we have write access. */
		if(!CAN_WRITE(conn) || !lp_dos_filemode(SNUM(conn)))
			return false;

		if (!can_write_to_file(conn, smb_fname)) {
			return false;
		}

		/*
		 * We need to get an open file handle to do the
		 * metadata operation under root.
		 */

		if (!NT_STATUS_IS_OK(get_file_handle_for_metadata(conn,
						smb_fname,
						&fsp,
						&need_close))) {
			return false;
		}

		become_root();
		if (SMB_VFS_FSETXATTR(fsp,
				     SAMBA_XATTR_DOS_ATTRIB, blob.data,
				     blob.length, 0) == 0) {
			ret = true;
		}
		unbecome_root();
		if (need_close) {
			close_file(NULL, fsp, NORMAL_CLOSE);
		}
		return ret;
	}
	DEBUG(10,("set_ea_dos_attribute: set EA 0x%x on file %s\n",
		(unsigned int)dosmode,
		smb_fname_str_dbg(smb_fname)));
	return true;
}