security/tomoyo/util.c

146 static bool tomoyo_correct_path2(const char *filename, const size_t len);
250 	char *filename;
257 	filename = tomoyo_read_token(param);
258 	if (!tomoyo_correct_word(filename))
260 	ptr->filename = tomoyo_get_name(filename);
261 	return ptr->filename != NULL;
526  * @filename: The pathname to check.
527  * @len:      Length of @filename.
529  * Returns true if @filename follows the naming rules, false otherwise.
531 static bool tomoyo_correct_path2(const char *filename, const size_t len)
533 	const char *cp1 = memchr(filename, '/', len);
534 	const char *cp2 = memchr(filename, '.', len);
536 	return cp1 && (!cp2 || (cp1 < cp2)) && tomoyo_correct_word2(filename, len);
542  * @filename: The pathname to check.
545  * Returns true if @filename follows the naming rules, false otherwise.
547 bool tomoyo_correct_path(const char *filename)
549 	return tomoyo_correct_path2(filename, strlen(filename));
631  * @filename: The string to evaluate.
633  * Returns the initial length without a pattern in @filename.
635 static int tomoyo_const_part_length(const char *filename)
640 	if (!filename)
642 	while ((c = *filename++) != '\0') {
647 		c = *filename++;
656 			c = *filename++;
659 			c = *filename++;
691  * @filename:     The start of string to check.
696  * Returns true if @filename matches @pattern, false otherwise.
698 static bool tomoyo_file_matches_pattern2(const char *filename,
703 	while (filename < filename_end && pattern < pattern_end) {
709 			if (*filename++ != *pattern++)
713 		c = *filename;
720 				if (filename[1] == '\\')
721 					filename++;
722 				else if (tomoyo_byte_range(filename + 1))
723 					filename += 3;
731 			if (*++filename != '\\')
750 			if (c == '\\' && tomoyo_byte_range(filename + 1)
751 			    && strncmp(filename + 1, pattern, 3) == 0) {
752 				filename += 3;
759 			for (i = 0; i <= filename_end - filename; i++) {
761 						    filename + i, filename_end,
764 				c = filename[i];
769 				if (filename[i + 1] == '\\')
771 				else if (tomoyo_byte_range(filename + i + 1))
781 				while (isdigit(filename[j]))
784 				while (isxdigit(filename[j]))
787 				while (tomoyo_alphabet_char(filename[j]))
792 						    filename + i, filename_end,
798 		filename++;
804 	return filename == filename_end && pattern == pattern_end;
810  * @filename:     The start of string to check.
815  * Returns true if @filename matches @pattern, false otherwise.
817 static bool tomoyo_file_matches_pattern(const char *filename,
830 		result = tomoyo_file_matches_pattern2(filename,
841 	result = tomoyo_file_matches_pattern2(filename, filename_end,
912  * tomoyo_path_matches_pattern - Check whether the given filename matches the given pattern.
914  * @filename: The filename to check.
937 bool tomoyo_path_matches_pattern(const struct tomoyo_path_info *filename,
940 	const char *f = filename->name;
946 		return !tomoyo_pathcmp(filename, pattern);
948 	if (filename->is_dir != pattern->is_dir)