+struct cfs_lstr {
+ char *ls_str;
+ int ls_len;
+};
+
+/*
+ * Structure to represent \<range_expr\> token of the syntax.
+ */
+struct cfs_range_expr {
+ /*
+ * Link to cfs_expr_list::el_exprs.
+ */
+ struct list_head re_link;
+ __u32 re_lo;
+ __u32 re_hi;
+ __u32 re_stride;
+};
+
+struct cfs_expr_list {
+ struct list_head el_link;
+ struct list_head el_exprs;
+};
+
+char *cfs_trimwhite(char *str);
+int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
+int cfs_str2num_check(char *str, int nob, unsigned *num,
+ unsigned min, unsigned max);
+int cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
+ int single_tok, struct cfs_range_expr **expr);
+int cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list);
+int cfs_expr_list_print(char *buffer, int count,
+ struct cfs_expr_list *expr_list);
+int cfs_expr_list_values(struct cfs_expr_list *expr_list,
+ int max, __u32 **values);
+static inline void
+cfs_expr_list_values_free(__u32 *values, int num)
+{
+ /* This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed
+ * by OBD_FREE() if it's called by module other than libcfs & LNet,
+ * otherwise we will see fake memory leak */
+ LIBCFS_FREE(values, num * sizeof(values[0]));
+}
+
+void cfs_expr_list_free(struct cfs_expr_list *expr_list);
+int cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
+ struct cfs_expr_list **elpp);
+void cfs_expr_list_free_list(struct list_head *list);
+int cfs_ip_addr_parse(char *str, int len, struct list_head *list);
+int cfs_ip_addr_match(__u32 addr, struct list_head *list);
+