1 files changed, 43 insertions, 0 deletions
diff --git a/set.h b/set.h
new file mode 100644
index 0000000..37845d3
--- /dev/null
+++ b/set.h
@@ -0,0 +1,43 @@
+/**
+ * struct field - Pre-computed field data
+ * @offset:	Offset in packet header, bytes
+ * @groups:	Number of 4-bit groups
+ * @rules:	Number of inserted rules
+ * @bsize:	Lookup table bucket size, bytes
+ * @lt:		Lookup table
+ * @mt:		Mapping table (n:m rules in next field)
+ */
+struct field {
+	int offset;
+	int groups;
+	int rules;
+
+	int bsize;
+	uint8_t *lt;
+	union map_bucket *mt;
+};
+
+/**
+ * struct set - Array of sets
+ * @fields:	Composing fields
+ */
+struct set {
+	struct field *fields;
+};
+
+#define for_each_field(f, s, layout)					\
+	for ((i) = 0, (f) = (s)->fields;				\
+	     (layout)[(i)]->type != KEY;				\
+	     i++, f++)
+
+int init(struct set *s, struct desc_spec **layout);
+int add(struct set *s, struct desc_spec **layout, uint8_t *data);
+int list_or_del(struct set *s, struct desc_spec **layout, uint8_t *match);
+
+#ifdef VERBOSE
+void show_lookup(struct field *f);
+void show_mapping(struct field *f, int to_key);
+#else
+#define show_lookup(...) do { } while (0)
+#define show_mapping(...) do { } while (0)
+#endif