Add useful lua functions to handle knot types

daemon/lua/kres-gen.lua

@@ -3,6 +3,8 @@ local ffi = require('ffi')
 
 typedef struct knot_dump_style knot_dump_style_t;
 extern const knot_dump_style_t KNOT_DUMP_STYLE_DEFAULT;
+typedef void knot_db_t;
+struct kr_cdb_api {};
 
 typedef struct knot_mm {
 	void *ctx, *alloc, *free;
@@ -163,6 +165,21 @@ struct kr_request {
 	knot_mm_t pool;
 };
 enum kr_rank {KR_RANK_INITIAL, KR_RANK_OMIT, KR_RANK_TRY, KR_RANK_INDET = 4, KR_RANK_BOGUS, KR_RANK_MISMATCH, KR_RANK_MISSING, KR_RANK_INSECURE, KR_RANK_AUTH = 16, KR_RANK_SECURE = 32};
+struct kr_cache
+{
+	knot_db_t *db;
+	const struct kr_cdb_api *api;
+	struct {
+		uint32_t hit;
+		uint32_t miss;
+		uint32_t insert;
+		uint32_t delete;
+	} stats;
+
+	uint32_t ttl_min, ttl_max;
+	struct timeval last_clear_walltime;
+	uint64_t last_clear_monotime;
+};
 struct knot_rrset {
 	knot_dname_t *_owner;
 	uint16_t type;
@@ -203,8 +220,10 @@ struct kr_context {
 	map_t trust_anchors;
 	map_t negative_anchors;
 	struct kr_zonecut root_hints;
+	struct kr_cache cache;
 	char _stub[];
 };
+const char *knot_strerror(int code);
 knot_dname_t *knot_dname_from_str(uint8_t *, const char *, size_t);
 _Bool knot_dname_is_equal(const knot_dname_t *, const knot_dname_t *);
 _Bool knot_dname_is_sub(const knot_dname_t *, const knot_dname_t *);
@@ -229,6 +248,9 @@ int knot_pkt_begin(knot_pkt_t *, knot_section_t);
 int knot_pkt_put_question(knot_pkt_t *, const knot_dname_t *, uint16_t, uint16_t);
 const knot_rrset_t *knot_pkt_rr(const knot_pktsection_t *, uint16_t);
 const knot_pktsection_t *knot_pkt_section(const knot_pkt_t *, knot_section_t);
+knot_pkt_t *knot_pkt_new(void *wire, uint16_t len, knot_mm_t *mm);
+void knot_pkt_free(knot_pkt_t **pkt);
+int knot_pkt_parse(knot_pkt_t *pkt, unsigned flags);
 struct kr_rplan *kr_resolve_plan(struct kr_request *);
 knot_mm_t *kr_resolve_pool(struct kr_request *);
 struct kr_query *kr_rplan_push(struct kr_rplan *, struct kr_query *, const knot_dname_t *, uint16_t, uint16_t);
@@ -242,6 +264,7 @@ int kr_pkt_recycle(knot_pkt_t *);
 const char *kr_inaddr(const struct sockaddr *);
 int kr_inaddr_family(const struct sockaddr *);
 int kr_inaddr_len(const struct sockaddr *);
+uint16_t kr_inaddr_port(const struct sockaddr *);
 int kr_straddr_family(const char *);
 int kr_straddr_subnet(void *, const char *);
 int kr_bitcmp(const char *, const char *, int);