Adding upstream version 5.6.0.upstream/5.6.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 647 insertions, 0 deletions

diff --git a/daemon/lua/kres-gen-31.lua b/daemon/lua/kres-gen-31.lua
new file mode 100644
index 0000000..a68dd65
--- /dev/null
+++ b/daemon/lua/kres-gen-31.lua
@@ -0,0 +1,647 @@
+-- SPDX-License-Identifier: GPL-3.0-or-later
+
+local ffi = require('ffi')
+--[[ This file is generated by ./kres-gen.sh ]] ffi.cdef[[
+typedef long time_t;
+typedef long __time_t;
+typedef long __suseconds_t;
+struct timeval {
+	__time_t tv_sec;
+	__suseconds_t tv_usec;
+};
+
+typedef struct knot_dump_style knot_dump_style_t;
+extern const knot_dump_style_t KR_DUMP_STYLE_DEFAULT;
+struct kr_cdb_api {};
+struct lru {};
+typedef enum {KNOT_ANSWER, KNOT_AUTHORITY, KNOT_ADDITIONAL} knot_section_t;
+typedef struct {
+	uint16_t pos;
+	uint16_t flags;
+	uint16_t compress_ptr[16];
+} knot_rrinfo_t;
+typedef unsigned char knot_dname_t;
+typedef struct {
+	uint16_t len;
+	uint8_t data[];
+} knot_rdata_t;
+typedef struct {
+	uint16_t count;
+	uint32_t size;
+	knot_rdata_t *rdata;
+} knot_rdataset_t;
+
+typedef struct knot_mm {
+	void *ctx, *alloc, *free;
+} knot_mm_t;
+
+typedef void *(*map_alloc_f)(void *, size_t);
+typedef void (*map_free_f)(void *baton, void *ptr);
+typedef void (*trace_log_f) (const struct kr_request *, const char *);
+typedef void (*trace_callback_f)(struct kr_request *);
+typedef uint8_t * (*alloc_wire_f)(struct kr_request *req, uint16_t *maxlen);
+typedef bool (*addr_info_f)(struct sockaddr*);
+typedef void (*zi_callback)(int state, void *param);
+typedef struct {
+	knot_dname_t *_owner;
+	uint32_t _ttl;
+	uint16_t type;
+	uint16_t rclass;
+	knot_rdataset_t rrs;
+	void *additional;
+} knot_rrset_t;
+
+struct kr_module;
+typedef char *(kr_prop_cb)(void *, struct kr_module *, const char *);
+typedef unsigned char knot_dname_storage_t[255];
+typedef struct knot_pkt knot_pkt_t;
+typedef struct {
+	uint8_t *ptr[18];
+} knot_edns_options_t;
+typedef struct {
+	knot_pkt_t *pkt;
+	uint16_t pos;
+	uint16_t count;
+} knot_pktsection_t;
+typedef struct knot_compr {
+	uint8_t *wire;
+	knot_rrinfo_t *rrinfo;
+	struct {
+		uint16_t pos;
+		uint8_t labels;
+	} suffix;
+} knot_compr_t;
+struct knot_pkt {
+	uint8_t *wire;
+	size_t size;
+	size_t max_size;
+	size_t parsed;
+	uint16_t reserved;
+	uint16_t qname_size;
+	uint16_t rrset_count;
+	uint16_t flags;
+	knot_rrset_t *opt_rr;
+	knot_rrset_t *tsig_rr;
+	knot_edns_options_t *edns_opts;
+	struct {
+		uint8_t *pos;
+		size_t len;
+	} tsig_wire;
+	knot_section_t current;
+	knot_pktsection_t sections[3];
+	size_t rrset_allocd;
+	knot_rrinfo_t *rr_info;
+	knot_rrset_t *rr;
+	knot_mm_t mm;
+	knot_compr_t compr;
+};
+typedef struct trie trie_t;
+struct kr_qflags {
+	_Bool NO_MINIMIZE : 1;
+	_Bool NO_IPV6 : 1;
+	_Bool NO_IPV4 : 1;
+	_Bool TCP : 1;
+	_Bool NO_ANSWER : 1;
+	_Bool RESOLVED : 1;
+	_Bool AWAIT_IPV4 : 1;
+	_Bool AWAIT_IPV6 : 1;
+	_Bool AWAIT_CUT : 1;
+	_Bool NO_EDNS : 1;
+	_Bool CACHED : 1;
+	_Bool NO_CACHE : 1;
+	_Bool EXPIRING : 1;
+	_Bool ALLOW_LOCAL : 1;
+	_Bool DNSSEC_WANT : 1;
+	_Bool DNSSEC_BOGUS : 1;
+	_Bool DNSSEC_INSECURE : 1;
+	_Bool DNSSEC_CD : 1;
+	_Bool STUB : 1;
+	_Bool ALWAYS_CUT : 1;
+	_Bool DNSSEC_WEXPAND : 1;
+	_Bool PERMISSIVE : 1;
+	_Bool STRICT : 1;
+	_Bool BADCOOKIE_AGAIN : 1;
+	_Bool CNAME : 1;
+	_Bool REORDER_RR : 1;
+	_Bool TRACE : 1;
+	_Bool NO_0X20 : 1;
+	_Bool DNSSEC_NODS : 1;
+	_Bool DNSSEC_OPTOUT : 1;
+	_Bool NONAUTH : 1;
+	_Bool FORWARD : 1;
+	_Bool DNS64_MARK : 1;
+	_Bool CACHE_TRIED : 1;
+	_Bool NO_NS_FOUND : 1;
+	_Bool PKT_IS_SANE : 1;
+	_Bool DNS64_DISABLE : 1;
+};
+typedef struct ranked_rr_array_entry {
+	uint32_t qry_uid;
+	uint8_t rank;
+	uint8_t revalidation_cnt;
+	_Bool cached : 1;
+	_Bool yielded : 1;
+	_Bool to_wire : 1;
+	_Bool expiring : 1;
+	_Bool in_progress : 1;
+	_Bool dont_cache : 1;
+	knot_rrset_t *rr;
+} ranked_rr_array_entry_t;
+typedef struct {
+	ranked_rr_array_entry_t **at;
+	size_t len;
+	size_t cap;
+} ranked_rr_array_t;
+typedef struct kr_http_header_array_entry {
+	char *name;
+	char *value;
+} kr_http_header_array_entry_t;
+typedef struct {
+	kr_http_header_array_entry_t *at;
+	size_t len;
+	size_t cap;
+} kr_http_header_array_t;
+typedef struct {
+	union kr_sockaddr *at;
+	size_t len;
+	size_t cap;
+} kr_sockaddr_array_t;
+struct kr_zonecut {
+	knot_dname_t *name;
+	knot_rrset_t *key;
+	knot_rrset_t *trust_anchor;
+	struct kr_zonecut *parent;
+	trie_t *nsset;
+	knot_mm_t *pool;
+};
+typedef struct {
+	struct kr_query **at;
+	size_t len;
+	size_t cap;
+} kr_qarray_t;
+struct kr_rplan {
+	kr_qarray_t pending;
+	kr_qarray_t resolved;
+	struct kr_query *initial;
+	struct kr_request *request;
+	knot_mm_t *pool;
+	uint32_t next_uid;
+};
+struct kr_request_qsource_flags {
+	_Bool tcp : 1;
+	_Bool tls : 1;
+	_Bool http : 1;
+	_Bool xdp : 1;
+};
+struct kr_extended_error {
+	int32_t info_code;
+	const char *extra_text;
+};
+struct kr_request {
+	struct kr_context *ctx;
+	knot_pkt_t *answer;
+	struct kr_query *current_query;
+	struct {
+		const struct sockaddr *addr;
+		const struct sockaddr *comm_addr;
+		const struct sockaddr *dst_addr;
+		const knot_pkt_t *packet;
+		struct kr_request_qsource_flags flags;
+		struct kr_request_qsource_flags comm_flags;
+		size_t size;
+		int32_t stream_id;
+		kr_http_header_array_t headers;
+	} qsource;
+	struct {
+		unsigned int rtt;
+		const struct kr_transport *transport;
+	} upstream;
+	struct kr_qflags options;
+	int state;
+	ranked_rr_array_t answ_selected;
+	ranked_rr_array_t auth_selected;
+	ranked_rr_array_t add_selected;
+	_Bool answ_validated;
+	_Bool auth_validated;
+	uint8_t rank;
+	struct kr_rplan rplan;
+	trace_log_f trace_log;
+	trace_callback_f trace_finish;
+	int vars_ref;
+	knot_mm_t pool;
+	unsigned int uid;
+	struct {
+		addr_info_f is_tls_capable;
+		addr_info_f is_tcp_connected;
+		addr_info_f is_tcp_waiting;
+		kr_sockaddr_array_t forwarding_targets;
+	} selection_context;
+	unsigned int count_no_nsaddr;
+	unsigned int count_fail_row;
+	alloc_wire_f alloc_wire_cb;
+	struct kr_extended_error extended_error;
+};
+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};
+typedef struct kr_cdb * kr_cdb_pt;
+struct kr_cdb_stats {
+	uint64_t open;
+	uint64_t close;
+	uint64_t count;
+	uint64_t count_entries;
+	uint64_t clear;
+	uint64_t commit;
+	uint64_t read;
+	uint64_t read_miss;
+	uint64_t write;
+	uint64_t remove;
+	uint64_t remove_miss;
+	uint64_t match;
+	uint64_t match_miss;
+	uint64_t read_leq;
+	uint64_t read_leq_miss;
+	double usage_percent;
+};
+typedef struct uv_timer_s uv_timer_t;
+struct kr_cache {
+	kr_cdb_pt db;
+	const struct kr_cdb_api *api;
+	struct kr_cdb_stats stats;
+	uint32_t ttl_min;
+	uint32_t ttl_max;
+	struct timeval checkpoint_walltime;
+	uint64_t checkpoint_monotime;
+	uv_timer_t *health_timer;
+};
+typedef struct kr_layer {
+	int state;
+	struct kr_request *req;
+	const struct kr_layer_api *api;
+	knot_pkt_t *pkt;
+	struct sockaddr *dst;
+	_Bool is_stream;
+} kr_layer_t;
+typedef struct kr_layer_api {
+	int (*begin)(kr_layer_t *);
+	int (*reset)(kr_layer_t *);
+	int (*finish)(kr_layer_t *);
+	int (*consume)(kr_layer_t *, knot_pkt_t *);
+	int (*produce)(kr_layer_t *, knot_pkt_t *);
+	int (*checkout)(kr_layer_t *, knot_pkt_t *, struct sockaddr *, int);
+	int (*answer_finalize)(kr_layer_t *);
+	void *data;
+	int cb_slots[];
+} kr_layer_api_t;
+struct kr_prop {
+	kr_prop_cb *cb;
+	const char *name;
+	const char *info;
+};
+struct kr_module {
+	char *name;
+	int (*init)(struct kr_module *);
+	int (*deinit)(struct kr_module *);
+	int (*config)(struct kr_module *, const char *);
+	const kr_layer_api_t *layer;
+	const struct kr_prop *props;
+	void *lib;
+	void *data;
+};
+struct kr_server_selection {
+	_Bool initialized;
+	void (*choose_transport)(struct kr_query *, struct kr_transport **);
+	void (*update_rtt)(struct kr_query *, const struct kr_transport *, unsigned int);
+	void (*error)(struct kr_query *, const struct kr_transport *, enum kr_selection_error);
+	struct local_state *local_state;
+};
+typedef int kr_log_level_t;
+enum kr_log_group {LOG_GRP_UNKNOWN = -1, LOG_GRP_SYSTEM = 1, LOG_GRP_CACHE, LOG_GRP_IO, LOG_GRP_NETWORK, LOG_GRP_TA, LOG_GRP_TLS, LOG_GRP_GNUTLS, LOG_GRP_TLSCLIENT, LOG_GRP_XDP, LOG_GRP_DOH, LOG_GRP_DNSSEC, LOG_GRP_HINT, LOG_GRP_PLAN, LOG_GRP_ITERATOR, LOG_GRP_VALIDATOR, LOG_GRP_RESOLVER, LOG_GRP_SELECTION, LOG_GRP_ZCUT, LOG_GRP_COOKIES, LOG_GRP_STATISTICS, LOG_GRP_REBIND, LOG_GRP_WORKER, LOG_GRP_POLICY, LOG_GRP_TASENTINEL, LOG_GRP_TASIGNALING, LOG_GRP_TAUPDATE, LOG_GRP_DAF, LOG_GRP_DETECTTIMEJUMP, LOG_GRP_DETECTTIMESKEW, LOG_GRP_GRAPHITE, LOG_GRP_PREFILL, LOG_GRP_PRIMING, LOG_GRP_SRVSTALE, LOG_GRP_WATCHDOG, LOG_GRP_NSID, LOG_GRP_DNSTAP, LOG_GRP_TESTS, LOG_GRP_DOTAUTH, LOG_GRP_HTTP, LOG_GRP_CONTROL, LOG_GRP_MODULE, LOG_GRP_DEVEL, LOG_GRP_RENUMBER, LOG_GRP_EDE, LOG_GRP_REQDBG};
+
+kr_layer_t kr_layer_t_static;
+_Bool kr_dbg_assertion_abort;
+int kr_dbg_assertion_fork;
+
+typedef int32_t (*kr_stale_cb)(int32_t ttl, const knot_dname_t *owner, uint16_t type,
+				const struct kr_query *qry);
+
+void kr_rrset_init(knot_rrset_t *rrset, knot_dname_t *owner,
+			uint16_t type, uint16_t rclass, uint32_t ttl);
+struct kr_query {
+	struct kr_query *parent;
+	knot_dname_t *sname;
+	uint16_t stype;
+	uint16_t sclass;
+	uint16_t id;
+	uint16_t reorder;
+	struct kr_qflags flags;
+	struct kr_qflags forward_flags;
+	uint32_t secret;
+	uint32_t uid;
+	uint64_t creation_time_mono;
+	uint64_t timestamp_mono;
+	struct timeval timestamp;
+	struct kr_zonecut zone_cut;
+	struct kr_layer_pickle *deferred;
+	int8_t cname_depth;
+	struct kr_query *cname_parent;
+	struct kr_request *request;
+	kr_stale_cb stale_cb;
+	struct kr_server_selection server_selection;
+};
+struct kr_context {
+	struct kr_qflags options;
+	knot_rrset_t *downstream_opt_rr;
+	knot_rrset_t *upstream_opt_rr;
+	trie_t *trust_anchors;
+	trie_t *negative_anchors;
+	struct kr_zonecut root_hints;
+	struct kr_cache cache;
+	unsigned int cache_rtt_tout_retry_interval;
+	char _stub[];
+};
+struct kr_transport {
+	knot_dname_t *ns_name;
+	/* beware: hidden stub, to avoid hardcoding sockaddr lengths */
+};
+const char *knot_strerror(int);
+knot_dname_t *knot_dname_copy(const knot_dname_t *, knot_mm_t *);
+knot_dname_t *knot_dname_from_str(uint8_t *, const char *, size_t);
+int knot_dname_in_bailiwick(const knot_dname_t *, const knot_dname_t *);
+_Bool knot_dname_is_equal(const knot_dname_t *, const knot_dname_t *);
+size_t knot_dname_labels(const uint8_t *, const uint8_t *);
+size_t knot_dname_size(const knot_dname_t *);
+void knot_dname_to_lower(knot_dname_t *);
+char *knot_dname_to_str(char *, const knot_dname_t *, size_t);
+knot_rdata_t *knot_rdataset_at(const knot_rdataset_t *, uint16_t);
+int knot_rdataset_merge(knot_rdataset_t *, const knot_rdataset_t *, knot_mm_t *);
+int knot_rrset_add_rdata(knot_rrset_t *, const uint8_t *, uint16_t, knot_mm_t *);
+void knot_rrset_free(knot_rrset_t *, knot_mm_t *);
+int knot_rrset_txt_dump(const knot_rrset_t *, char **, size_t *, const knot_dump_style_t *);
+int knot_rrset_txt_dump_data(const knot_rrset_t *, const size_t, char *, const size_t, const knot_dump_style_t *);
+size_t knot_rrset_size(const knot_rrset_t *);
+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);
+int knot_pkt_put_rotate(knot_pkt_t *, uint16_t, const knot_rrset_t *, uint16_t, uint16_t);
+knot_pkt_t *knot_pkt_new(void *, uint16_t, knot_mm_t *);
+void knot_pkt_free(knot_pkt_t *);
+int knot_pkt_parse(knot_pkt_t *, unsigned int);
+knot_rrset_t *kr_request_ensure_edns(struct kr_request *);
+knot_pkt_t *kr_request_ensure_answer(struct kr_request *);
+int kr_request_set_extended_error(struct kr_request *, int, const char *);
+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);
+int kr_rplan_pop(struct kr_rplan *, struct kr_query *);
+struct kr_query *kr_rplan_resolved(struct kr_rplan *);
+struct kr_query *kr_rplan_last(struct kr_rplan *);
+int kr_forward_add_target(struct kr_request *, const struct sockaddr *);
+_Bool kr_log_is_debug_fun(enum kr_log_group, const struct kr_request *);
+void kr_log_req1(const struct kr_request * const, uint32_t, const unsigned int, enum kr_log_group, const char *, const char *, ...);
+void kr_log_q1(const struct kr_query * const, enum kr_log_group, const char *, const char *, ...);
+const char *kr_log_grp2name(enum kr_log_group);
+void kr_log_fmt(enum kr_log_group, kr_log_level_t, const char *, const char *, const char *, const char *, ...);
+int kr_make_query(struct kr_query *, knot_pkt_t *);
+void kr_pkt_make_auth_header(knot_pkt_t *);
+int kr_pkt_put(knot_pkt_t *, const knot_dname_t *, uint32_t, uint16_t, uint16_t, const uint8_t *, uint16_t);
+int kr_pkt_recycle(knot_pkt_t *);
+int kr_pkt_clear_payload(knot_pkt_t *);
+_Bool kr_pkt_has_wire(const knot_pkt_t *);
+_Bool kr_pkt_has_dnssec(const knot_pkt_t *);
+uint16_t kr_pkt_qclass(const knot_pkt_t *);
+uint16_t kr_pkt_qtype(const knot_pkt_t *);
+char *kr_pkt_text(const knot_pkt_t *);
+void kr_rnd_buffered(void *, unsigned int);
+uint32_t kr_rrsig_sig_inception(const knot_rdata_t *);
+uint32_t kr_rrsig_sig_expiration(const knot_rdata_t *);
+uint16_t kr_rrsig_type_covered(const knot_rdata_t *);
+const char *kr_inaddr(const struct sockaddr *);
+int kr_inaddr_family(const struct sockaddr *);
+int kr_inaddr_len(const struct sockaddr *);
+int kr_inaddr_str(const struct sockaddr *, char *, size_t *);
+int kr_sockaddr_cmp(const struct sockaddr *, const struct sockaddr *);
+int kr_sockaddr_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);
+int kr_family_len(int);
+struct sockaddr *kr_straddr_socket(const char *, int, knot_mm_t *);
+int kr_straddr_split(const char *, char * restrict, uint16_t *);
+_Bool kr_rank_test(uint8_t, uint8_t);
+int kr_ranked_rrarray_add(ranked_rr_array_t *, const knot_rrset_t *, uint8_t, _Bool, uint32_t, knot_mm_t *);
+int kr_ranked_rrarray_finalize(ranked_rr_array_t *, uint32_t, knot_mm_t *);
+void kr_qflags_set(struct kr_qflags *, struct kr_qflags);
+void kr_qflags_clear(struct kr_qflags *, struct kr_qflags);
+int kr_zonecut_add(struct kr_zonecut *, const knot_dname_t *, const void *, int);
+_Bool kr_zonecut_is_empty(struct kr_zonecut *);
+void kr_zonecut_set(struct kr_zonecut *, const knot_dname_t *);
+uint64_t kr_now();
+const char *kr_strptime_diff(const char *, const char *, const char *, double *);
+time_t kr_file_mtime(const char *);
+long long kr_fssize(const char *);
+const char *kr_dirent_name(const struct dirent *);
+void lru_free_items_impl(struct lru *);
+struct lru *lru_create_impl(unsigned int, unsigned int, knot_mm_t *, knot_mm_t *);
+void *lru_get_impl(struct lru *, const char *, unsigned int, unsigned int, _Bool, _Bool *);
+void *mm_realloc(knot_mm_t *, void *, size_t, size_t);
+knot_rrset_t *kr_ta_get(trie_t *, const knot_dname_t *);
+int kr_ta_add(trie_t *, const knot_dname_t *, uint16_t, uint32_t, const uint8_t *, uint16_t);
+int kr_ta_del(trie_t *, const knot_dname_t *);
+void kr_ta_clear(trie_t *);
+_Bool kr_dnssec_key_ksk(const uint8_t *);
+_Bool kr_dnssec_key_revoked(const uint8_t *);
+int kr_dnssec_key_tag(uint16_t, const uint8_t *, size_t);
+int kr_dnssec_key_match(const uint8_t *, size_t, const uint8_t *, size_t);
+int kr_cache_closest_apex(struct kr_cache *, const knot_dname_t *, _Bool, knot_dname_t **);
+int kr_cache_insert_rr(struct kr_cache *, const knot_rrset_t *, const knot_rrset_t *, uint8_t, uint32_t, _Bool);
+int kr_cache_remove(struct kr_cache *, const knot_dname_t *, uint16_t);
+int kr_cache_remove_subtree(struct kr_cache *, const knot_dname_t *, _Bool, int);
+int kr_cache_commit(struct kr_cache *);
+uint32_t packet_ttl(const knot_pkt_t *);
+typedef struct {
+	int sock_type;
+	_Bool tls;
+	_Bool http;
+	_Bool xdp;
+	_Bool freebind;
+	const char *kind;
+} endpoint_flags_t;
+typedef struct {
+	char **at;
+	size_t len;
+	size_t cap;
+} addr_array_t;
+typedef struct {
+	int fd;
+	endpoint_flags_t flags;
+} flagged_fd_t;
+typedef struct {
+	flagged_fd_t *at;
+	size_t len;
+	size_t cap;
+} flagged_fd_array_t;
+typedef struct {
+	const char **at;
+	size_t len;
+	size_t cap;
+} config_array_t;
+struct args {
+	addr_array_t addrs;
+	addr_array_t addrs_tls;
+	flagged_fd_array_t fds;
+	int control_fd;
+	int forks;
+	config_array_t config;
+	const char *rundir;
+	_Bool interactive;
+	_Bool quiet;
+	_Bool tty_binary_output;
+};
+typedef struct {
+	const char *zone_file;
+	const char *origin;
+	uint32_t ttl;
+	enum {ZI_STAMP_NOW, ZI_STAMP_MTIM} time_src;
+	_Bool downgrade;
+	_Bool zonemd;
+	const knot_rrset_t *ds;
+	zi_callback cb;
+	void *cb_param;
+} zi_config_t;
+struct args *the_args;
+struct endpoint {
+	void *handle;
+	int fd;
+	int family;
+	uint16_t port;
+	int16_t nic_queue;
+	_Bool engaged;
+	endpoint_flags_t flags;
+};
+struct request_ctx {
+	struct kr_request req;
+	struct worker_ctx *worker;
+	struct qr_task *task;
+	/* beware: hidden stub, to avoid hardcoding sockaddr lengths */
+};
+struct qr_task {
+	struct request_ctx *ctx;
+	/* beware: hidden stub, to avoid qr_tasklist_t */
+};
+int worker_resolve_exec(struct qr_task *, knot_pkt_t *);
+knot_pkt_t *worker_resolve_mk_pkt(const char *, uint16_t, uint16_t, const struct kr_qflags *);
+struct qr_task *worker_resolve_start(knot_pkt_t *, struct kr_qflags);
+int zi_zone_import(const zi_config_t);
+struct engine {
+	struct kr_context resolver;
+	char _stub[];
+};
+struct worker_ctx {
+	struct engine *engine;
+	char _stub[];
+};
+struct worker_ctx *the_worker;
+typedef struct {
+	uint8_t *params_position;
+	uint8_t *mandatory_position;
+	uint8_t *param_position;
+	int32_t last_key;
+} zs_svcb_t;
+typedef struct {
+	uint8_t bitmap[32];
+	uint8_t length;
+} zs_win_t;
+typedef struct {
+	uint8_t excl_flag;
+	uint16_t addr_family;
+	uint8_t prefix_length;
+} zs_apl_t;
+typedef struct {
+	uint32_t d1;
+	uint32_t d2;
+	uint32_t m1;
+	uint32_t m2;
+	uint32_t s1;
+	uint32_t s2;
+	uint32_t alt;
+	uint64_t siz;
+	uint64_t hp;
+	uint64_t vp;
+	int8_t lat_sign;
+	int8_t long_sign;
+	int8_t alt_sign;
+} zs_loc_t;
+typedef enum {ZS_STATE_NONE, ZS_STATE_DATA, ZS_STATE_ERROR, ZS_STATE_INCLUDE, ZS_STATE_EOF, ZS_STATE_STOP} zs_state_t;
+typedef struct zs_scanner zs_scanner_t;
+typedef struct zs_scanner {
+	int cs;
+	int top;
+	int stack[16];
+	_Bool multiline;
+	uint64_t number64;
+	uint64_t number64_tmp;
+	uint32_t decimals;
+	uint32_t decimal_counter;
+	uint32_t item_length;
+	uint32_t item_length_position;
+	uint8_t *item_length_location;
+	uint8_t *item_length2_location;
+	uint32_t buffer_length;
+	uint8_t buffer[65535];
+	char include_filename[65535];
+	char *path;
+	zs_win_t windows[256];
+	int16_t last_window;
+	zs_apl_t apl;
+	zs_loc_t loc;
+	zs_svcb_t svcb;
+	uint8_t addr[16];
+	_Bool long_string;
+	_Bool comma_list;
+	uint8_t *dname;
+	uint32_t *dname_length;
+	uint32_t dname_tmp_length;
+	uint32_t r_data_tail;
+	uint32_t zone_origin_length;
+	uint8_t zone_origin[318];
+	uint16_t default_class;
+	uint32_t default_ttl;
+	zs_state_t state;
+	struct {
+		_Bool automatic;
+		void (*record)(zs_scanner_t *);
+		void (*error)(zs_scanner_t *);
+		void (*comment)(zs_scanner_t *);
+		void *data;
+	} process;
+	struct {
+		const char *start;
+		const char *current;
+		const char *end;
+		_Bool eof;
+		_Bool mmaped;
+	} input;
+	struct {
+		char *name;
+		int descriptor;
+	} file;
+	struct {
+		int code;
+		uint64_t counter;
+		_Bool fatal;
+	} error;
+	uint64_t line_counter;
+	uint32_t r_owner_length;
+	uint8_t r_owner[318];
+	uint16_t r_class;
+	uint32_t r_ttl;
+	uint16_t r_type;
+	uint32_t r_data_length;
+	uint8_t r_data[65535];
+} zs_scanner_t;
+void zs_deinit(zs_scanner_t *);
+int zs_init(zs_scanner_t *, const char *, const uint16_t, const uint32_t);
+int zs_parse_record(zs_scanner_t *);
+int zs_set_input_file(zs_scanner_t *, const char *);
+int zs_set_input_string(zs_scanner_t *, const char *, size_t);
+const char *zs_strerror(const int);
+]]