1 files changed, 24 insertions, 0 deletions
diff --git a/match.h b/match.h
new file mode 100644
index 0000000..c3821a7
--- /dev/null
+++ b/match.h
@@ -0,0 +1,24 @@
+/**
+ * struct kernel_set - Representation of in-kernel set data
+ * @groups:	Number of 4-bit groups for each field (algorithm step 3.1)
+ * @offset:	Offset of field within packet data, in bytes
+ * @bsize:	Lookup table bucket size for field, in bytes
+ * @lt:		Lookup table for field (algorithm steps 3.2 - 3.4)
+ * @mt:		Mapping table for field (algorithm steps 3.5 - 3.6)
+ * @map:	Result bitmap, two copies: swap indices instead of copying
+ * @map_idx:	Index of current matching bitmap
+ * @max_bsize:	Maximum lookup table bucket size for all fields in the set
+ */
+struct kernel_set {
+	int groups[MAX_FIELDS];
+	int offset[MAX_FIELDS];
+	int bsize[MAX_FIELDS];
+	uint8_t *lt[MAX_FIELDS];
+	union map_bucket *mt[MAX_FIELDS];
+	uint8_t *map[2];
+	int map_idx;
+	int max_bsize;
+};
+
+struct kernel_set *kernel_init(struct set *s, struct desc_spec **layout);
+uint32_t match(struct kernel_set *ks, uint8_t *packet);