dns64 nitpick: make the query flag "official"

daemon/lua/kres-gen.lua

@@ -165,7 +165,7 @@ struct kr_context {
 	struct kr_zonecut root_hints;
 	char _stub[];
 };
-struct query_flag {static const int NO_MINIMIZE = 1; static const int NO_THROTTLE = 2; static const int NO_IPV6 = 4; static const int NO_IPV4 = 8; static const int TCP = 16; static const int RESOLVED = 32; static const int AWAIT_IPV4 = 64; static const int AWAIT_IPV6 = 128; static const int AWAIT_CUT = 256; static const int SAFEMODE = 512; static const int CACHED = 1024; static const int NO_CACHE = 2048; static const int EXPIRING = 4096; static const int ALLOW_LOCAL = 8192; static const int DNSSEC_WANT = 16384; static const int DNSSEC_BOGUS = 32768; static const int DNSSEC_INSECURE = 65536; static const int STUB = 131072; static const int ALWAYS_CUT = 262144; static const int DNSSEC_WEXPAND = 524288; static const int PERMISSIVE = 1048576; static const int STRICT = 2097152; static const int BADCOOKIE_AGAIN = 4194304; static const int CNAME = 8388608; static const int REORDER_RR = 16777216; static const int TRACE = 33554432; static const int NO_0X20 = 67108864; static const int DNSSEC_NODS = 134217728; static const int DNSSEC_OPTOUT = 268435456; static const int NONAUTH = 536870912; static const int FORWARD = 1073741824;};
+struct query_flag {static const int NO_MINIMIZE = 1; static const int NO_THROTTLE = 2; static const int NO_IPV6 = 4; static const int NO_IPV4 = 8; static const int TCP = 16; static const int RESOLVED = 32; static const int AWAIT_IPV4 = 64; static const int AWAIT_IPV6 = 128; static const int AWAIT_CUT = 256; static const int SAFEMODE = 512; static const int CACHED = 1024; static const int NO_CACHE = 2048; static const int EXPIRING = 4096; static const int ALLOW_LOCAL = 8192; static const int DNSSEC_WANT = 16384; static const int DNSSEC_BOGUS = 32768; static const int DNSSEC_INSECURE = 65536; static const int STUB = 131072; static const int ALWAYS_CUT = 262144; static const int DNSSEC_WEXPAND = 524288; static const int PERMISSIVE = 1048576; static const int STRICT = 2097152; static const int BADCOOKIE_AGAIN = 4194304; static const int CNAME = 8388608; static const int REORDER_RR = 16777216; static const int TRACE = 33554432; static const int NO_0X20 = 67108864; static const int DNSSEC_NODS = 134217728; static const int DNSSEC_OPTOUT = 268435456; static const int NONAUTH = 536870912; static const int FORWARD = 1073741824; static const int DNS64_MARK = 2147483648;};
 int knot_dname_size(const knot_dname_t *);
 knot_dname_t *knot_dname_from_str(uint8_t *, const char *, size_t);
 char *knot_dname_to_str(char *, const knot_dname_t *, size_t);

lib/rplan.h

@@ -58,7 +58,7 @@
 	X(NONAUTH,         1 << 29) /**< Non-authoritative in-bailiwick records are enough.
 				     *   TODO: utilize this also outside cache. */ \
 	X(FORWARD,	   1 << 30) /**< Forward all queries to upstream; validate answers */ \
-			/* 1 << 31       Used by ../modules/dns64/dns64.lua */
+	X(DNS64_MARK,	   1u << 31) /**< Internal to ../modules/dns64/dns64.lua */
 
 /** Query flags */
 enum kr_query_flag {

modules/dns64/dns64.lua

@@ -2,7 +2,6 @@
 local ffi = require('ffi')
 local bit = require('bit')
 local mod = {}
-local MARK_DNS64 = bit.lshift(1, 31)
 local addr_buf = ffi.new('char[16]')
 -- Config
 function mod.config (confstr)
@@ -23,7 +22,7 @@ mod.layer = {
 		end
 		-- Synthetic AAAA from marked A responses
 		local answer = pkt:section(kres.section.ANSWER)
-		if bit.band(qry.flags, MARK_DNS64) ~= 0 then -- Marked request
+		if bit.band(qry.flags, kres.query.DNS64_MARK) ~= 0 then -- Marked request
 			local section = ffi.C.knot_pkt_section(pkt, kres.section.ANSWER)
 			for i = 1, section.count do
 				local orig = ffi.C.knot_pkt_rr(section, i - 1)
@@ -55,7 +54,7 @@ mod.layer = {
 			if pkt:qtype() == kres.type.AAAA and is_nodata and pkt:qname() == qry:name() and qry:final() then
 				local extraFlags = bit.bor(
 					bit.band(qry.flags, kres.query.DNSSEC_WANT),
-					bit.bor(MARK_DNS64, kres.query.AWAIT_CUT)
+					bit.bor(kres.query.DNS64_MARK, kres.query.AWAIT_CUT)
 					)
 				local next = req:push(pkt:qname(), kres.type.A, kres.class.IN, extraFlags, qry)
 			end