1 const fs = require("fs");
2 const uci = require("uci");
3 const ubus = require("ubus");
5 const STATEFILE = "/var/run/fw4.state";
7 const PARSE_LIST = 0x01;
8 const FLATTEN_LIST = 0x02;
9 const NO_INVERT = 0x04;
10 const UNSUPPORTED = 0x08;
11 const REQUIRED = 0x10;
12 const DEPRECATED = 0x20;
14 const ipv4_icmptypes = {
15 "any": [ 0xFF, 0, 0xFF ],
16 "echo-reply": [ 0, 0, 0xFF ],
17 "pong": [ 0, 0, 0xFF ], /* Alias */
19 "destination-unreachable": [ 3, 0, 0xFF ],
20 "network-unreachable": [ 3, 0, 0 ],
21 "host-unreachable": [ 3, 1, 1 ],
22 "protocol-unreachable": [ 3, 2, 2 ],
23 "port-unreachable": [ 3, 3, 3 ],
24 "fragmentation-needed": [ 3, 4, 4 ],
25 "source-route-failed": [ 3, 5, 5 ],
26 "network-unknown": [ 3, 6, 6 ],
27 "host-unknown": [ 3, 7, 7 ],
28 "network-prohibited": [ 3, 9, 9 ],
29 "host-prohibited": [ 3, 10, 10 ],
30 "TOS-network-unreachable": [ 3, 11, 11 ],
31 "TOS-host-unreachable": [ 3, 12, 12 ],
32 "communication-prohibited": [ 3, 13, 13 ],
33 "host-precedence-violation": [ 3, 14, 14 ],
34 "precedence-cutoff": [ 3, 15, 15 ],
36 "source-quench": [ 4, 0, 0xFF ],
38 "redirect": [ 5, 0, 0xFF ],
39 "network-redirect": [ 5, 0, 0 ],
40 "host-redirect": [ 5, 1, 1 ],
41 "TOS-network-redirect": [ 5, 2, 2 ],
42 "TOS-host-redirect": [ 5, 3, 3 ],
44 "echo-request": [ 8, 0, 0xFF ],
45 "ping": [ 8, 0, 0xFF ], /* Alias */
47 "router-advertisement": [ 9, 0, 0xFF ],
49 "router-solicitation": [ 10, 0, 0xFF ],
51 "time-exceeded": [ 11, 0, 0xFF ],
52 "ttl-exceeded": [ 11, 0, 0xFF ], /* Alias */
53 "ttl-zero-during-transit": [ 11, 0, 0 ],
54 "ttl-zero-during-reassembly": [ 11, 1, 1 ],
56 "parameter-problem": [ 12, 0, 0xFF ],
57 "ip-header-bad": [ 12, 0, 0 ],
58 "required-option-missing": [ 12, 1, 1 ],
60 "timestamp-request": [ 13, 0, 0xFF ],
62 "timestamp-reply": [ 14, 0, 0xFF ],
64 "address-mask-request": [ 17, 0, 0xFF ],
66 "address-mask-reply": [ 18, 0, 0xFF ]
69 const ipv6_icmptypes = {
70 "destination-unreachable": [ 1, 0, 0xFF ],
71 "no-route": [ 1, 0, 0 ],
72 "communication-prohibited": [ 1, 1, 1 ],
73 "address-unreachable": [ 1, 3, 3 ],
74 "port-unreachable": [ 1, 4, 4 ],
76 "packet-too-big": [ 2, 0, 0xFF ],
78 "time-exceeded": [ 3, 0, 0xFF ],
79 "ttl-exceeded": [ 3, 0, 0xFF ], /* Alias */
80 "ttl-zero-during-transit": [ 3, 0, 0 ],
81 "ttl-zero-during-reassembly": [ 3, 1, 1 ],
83 "parameter-problem": [ 4, 0, 0xFF ],
84 "bad-header": [ 4, 0, 0 ],
85 "unknown-header-type": [ 4, 1, 1 ],
86 "unknown-option": [ 4, 2, 2 ],
88 "echo-request": [ 128, 0, 0xFF ],
89 "ping": [ 128, 0, 0xFF ], /* Alias */
91 "echo-reply": [ 129, 0, 0xFF ],
92 "pong": [ 129, 0, 0xFF ], /* Alias */
94 "router-solicitation": [ 133, 0, 0xFF ],
96 "router-advertisement": [ 134, 0, 0xFF ],
98 "neighbour-solicitation": [ 135, 0, 0xFF ],
99 "neighbor-solicitation": [ 135, 0, 0xFF ], /* Alias */
101 "neighbour-advertisement": [ 136, 0, 0xFF ],
102 "neighbor-advertisement": [ 136, 0, 0xFF ], /* Alias */
104 "redirect": [ 137, 0, 0xFF ]
107 const dscp_classes = {
133 function to_mask(bits, v6) {
136 if (bits < 0 || bits > (v6 ? 128 : 32))
139 for (let i = 0; i < (v6 ? 16 : 4); i++) {
140 let b = (bits < 8) ? bits : 8;
141 m[i] = (0xff << (8 - b)) & 0xff;
148 function to_bits(mask) {
149 let a = iptoarr(mask);
156 for (let i = 0, z = false; i < length(a); i++) {
159 while (!z && (a[i] & 0x80)) {
160 a[i] = (a[i] << 1) & 0xff;
171 function apply_mask(addr, mask) {
172 let a = iptoarr(addr);
177 if (type(mask) == "int") {
178 for (let i = 0; i < length(a); i++) {
179 let b = (mask < 8) ? mask : 8;
180 a[i] &= (0xff << (8 - b)) & 0xff;
185 let m = iptoarr(mask);
187 if (!m || length(a) != length(m))
190 for (let i = 0; i < length(a); i++)
197 function to_array(x) {
198 if (type(x) == "array")
204 if (type(x) == "object")
209 return (x == "") ? [] : split(x, /[ \t]+/);
212 function filter_pos(x) {
213 let rv = filter(x, e => !e.invert);
214 return length(rv) ? rv : null;
217 function filter_neg(x) {
218 let rv = filter(x, e => e.invert);
219 return length(rv) ? rv : null;
222 function null_if_empty(x) {
223 return length(x) ? x : null;
226 function subnets_split_af(x) {
229 for (let ag in to_array(x)) {
230 for (let a in filter(ag.addrs, a => (a.family == 4)))
231 push(rv[0] ||= [], { ...a, invert: ag.invert });
233 for (let a in filter(ag.addrs, a => (a.family == 6)))
234 push(rv[1] ||= [], { ...a, invert: ag.invert });
238 rv.family = (!rv[0] ^ !rv[1]) ? (rv[0] ? 4 : 6) : 0;
243 function subnets_group_by_masking(x) {
244 let groups = [], plain = [], nc = [], invert_plain = [], invert_masked = [];
246 for (let a in to_array(x)) {
247 if (a.bits == -1 && !a.invert)
251 else if (a.bits == -1)
252 push(invert_masked, a);
254 push(invert_plain, a);
258 push(groups, [ null, null_if_empty(invert_plain), [ a, ...invert_masked ] ]);
263 null_if_empty(invert_plain),
264 null_if_empty(invert_masked)
267 else if (!length(groups)) {
270 null_if_empty(invert_plain),
271 null_if_empty(invert_masked)
278 function ensure_tcpudp(x) {
279 if (length(filter(x, p => (p.name == "tcp" || p.name == "udp"))))
282 let rest = filter(x, p => !p.any),
283 any = filter(x, p => p.any);
285 if (length(any) && !length(rest)) {
287 push(x, { name: "tcp" }, { name: "udp" });
294 let is_family = (x, v) => (!x.family || x.family == v);
295 let family_is_ipv4 = (x) => (!x.family || x.family == 4);
296 let family_is_ipv6 = (x) => (!x.family || x.family == 6);
298 function infer_family(f, objects) {
302 for (let i = 0; i < length(objects); i += 2) {
303 let objs = to_array(objects[i]),
304 desc = objects[i + 1];
306 for (let obj in objs) {
307 if (!obj || !obj.family || obj.family == res)
317 ? `references IPv${obj.family} only ${desc} but is restricted to IPv${res} by ${by}`
318 : `is restricted to IPv${res} but referenced ${desc} is IPv${obj.family} only`;
325 function map_setmatch(set, match, proto) {
326 if (!set || (('inet_service' in set.types) && proto != 'tcp' && proto != 'udp'))
331 for (let i, t in set.types) {
332 let dir = ((match.dir?.[i] || set.directions[i] || 'src') == 'src' ? 's' : 'd');
336 fields[i] = `ip ${dir}saddr`;
340 fields[i] = `ip6 ${dir}saddr`;
347 fields[i] = 'ether saddr';
351 fields[i] = `${proto} ${dir}port`;
359 function resolve_lower_devices(devstatus, devname) {
360 let dir = fs.opendir(`/sys/class/net/${devname}`);
364 if (!devstatus || devstatus[devname]?.["hw-tc-offload"]) {
370 while ((e = dir.read()) != null)
371 if (index(e, "lower_") === 0)
372 push(devs, ...resolve_lower_devices(devstatus, substr(e, 6)));
381 function nft_json_command(...args) {
382 let cmd = [ "/usr/sbin/nft", "--terse", "--json", ...args ];
383 let nft = fs.popen(join(" ", cmd), "r");
388 info = filter(json(nft.read("all"))?.nftables,
389 item => (type(item) == "object" && !item.metainfo));
392 warn(`Unable to parse nftables JSON output: ${e}\n`);
398 warn(`Unable to popen() ${cmd}: ${fs.error()}\n`);
404 function nft_try_hw_offload(devices) {
406 add table inet fw4-hw-offload-test;
407 add flowtable inet fw4-hw-offload-test ft {
408 hook ingress priority 0;
409 devices = { "${join('", "', devices)}" };
414 let rc = system(`/usr/sbin/nft -c '${replace(nft_test, "'", "'\\''")}' 2>/dev/null`);
421 read_kernel_version: function() {
422 let fd = fs.open("/proc/version", "r"),
426 let m = match(fd.read("line"), /^Linux version ([0-9]+)\.([0-9]+)\.([0-9]+)/);
428 v = m ? (+m[1] << 24) | (+m[2] << 16) | (+m[3] << 8) : 0;
435 resolve_offload_devices: function() {
436 if (!this.default_option("flow_offloading"))
439 let devstatus = null;
442 if (this.default_option("flow_offloading_hw")) {
443 let bus = ubus.connect();
446 devstatus = bus.call("network.device", "status") || {};
450 for (let zone in this.zones())
451 for (let device in zone.related_physdevs)
452 push(devices, ...resolve_lower_devices(devstatus, device));
454 devices = uniq(devices);
456 if (nft_try_hw_offload(devices))
459 this.warn('Hardware flow offloading unavailable, falling back to software offloading');
460 this.state.defaults.flow_offloading_hw = false;
465 for (let zone in this.zones())
466 for (let device in zone.match_devices)
467 push(devices, ...resolve_lower_devices(null, device));
469 return uniq(devices);
472 check_set_types: function() {
475 for (let item in nft_json_command("list", "sets", "inet"))
476 if (item.set?.table == "fw4")
477 sets[item.set.name] = (type(item.set.type) == "array") ? item.set.type : [ item.set.type ];
482 check_flowtable: function() {
483 for (let item in nft_json_command("list", "flowtables", "inet"))
484 if (item.flowtable?.table == "fw4" && item.flowtable?.name == "ft")
490 read_state: function() {
491 let fd = fs.open(STATEFILE, "r");
496 state = json(fd.read("all"));
499 warn(`Unable to parse '${STATEFILE}': ${e}\n`);
508 read_ubus: function() {
511 rules = [], networks = {},
512 bus = ubus.connect();
515 ifaces = bus.call("network.interface", "dump");
516 services = bus.call("service", "get_data", { "type": "firewall" });
521 warn(`Unable to connect to ubus: ${ubus.error()}\n`);
526 // Gather logical network information from ubus
529 if (type(ifaces?.interface) == "array") {
530 for (let ifc in ifaces.interface) {
533 device: ifc.l3_device,
538 if (type(ifc["ipv4-address"]) == "array") {
539 for (let addr in ifc["ipv4-address"]) {
540 push(net.ipaddrs ||= [], {
543 mask: to_mask(addr.mask, false),
549 if (type(ifc["ipv6-address"]) == "array") {
550 for (let addr in ifc["ipv6-address"]) {
551 push(net.ipaddrs ||= [], {
554 mask: to_mask(addr.mask, true),
560 if (type(ifc["ipv6-prefix-assignment"]) == "array") {
561 for (let addr in ifc["ipv6-prefix-assignment"]) {
562 if (addr["local-address"]) {
563 push(net.ipaddrs ||= [], {
565 addr: addr["local-address"].address,
566 mask: to_mask(addr["local-address"].mask, true),
567 bits: addr["local-address"].mask
573 if (type(ifc.data?.firewall) == "array") {
576 for (let rulespec in ifc.data.firewall) {
580 name: (rulespec.type != 'ipset') ? `ubus:${ifc.interface}[${ifc.proto}] ${rulespec.type || 'rule'} ${n}` : rulespec.name,
581 device: rulespec.device || ifc.l3_device
588 networks[ifc.interface] = net;
594 // Gather firewall rule definitions from ubus services
597 if (type(services) == "object") {
598 for (let svcname, service in services) {
599 if (type(service?.firewall) == "array") {
602 for (let rulespec in services[svcname].firewall) {
606 name: (rulespec.type != 'ipset') ? `ubus:${svcname} ${rulespec.type || 'rule'} ${n}` : rulespec.name
613 for (let svcinst, instance in service) {
614 if (type(instance?.firewall) == "array") {
617 for (let rulespec in instance.firewall) {
621 name: (rulespec.type != 'ipset') ? `ubus:${svcname}[${svcinst}] ${rulespec.type || 'rule'} ${n}` : rulespec.name
637 load: function(use_statefile) {
640 this.state = use_statefile ? this.read_state() : null;
642 this.cursor = uci.cursor();
643 this.cursor.load("firewall");
644 this.cursor.load("/usr/share/firewall4/helpers");
647 this.state = this.read_ubus();
649 this.kernel = this.read_kernel_version();
653 // Read helper mapping
656 this.cursor.foreach("helpers", "helper", h => self.parse_helper(h));
660 // Read default policies
663 this.cursor.foreach("firewall", "defaults", d => self.parse_defaults(d));
665 if (!this.state.defaults)
666 this.parse_defaults({});
670 // Build list of ipsets
673 if (!this.state.ipsets) {
674 map(filter(this.state.ubus_rules, n => (n.type == "ipset")), s => self.parse_ipset(s));
675 this.cursor.foreach("firewall", "ipset", s => self.parse_ipset(s));
680 // Build list of logical zones
683 if (!this.state.zones)
684 this.cursor.foreach("firewall", "zone", z => self.parse_zone(z));
688 // Build list of rules
691 map(filter(this.state.ubus_rules, r => (r.type == "rule")), r => self.parse_rule(r));
692 this.cursor.foreach("firewall", "rule", r => self.parse_rule(r));
696 // Build list of forwardings
699 this.cursor.foreach("firewall", "forwarding", f => self.parse_forwarding(f));
703 // Build list of redirects
706 map(filter(this.state.ubus_rules, r => (r.type == "redirect")), r => self.parse_redirect(r));
707 this.cursor.foreach("firewall", "redirect", r => self.parse_redirect(r));
711 // Build list of snats
714 map(filter(this.state.ubus_rules, n => (n.type == "nat")), n => self.parse_nat(n));
715 this.cursor.foreach("firewall", "nat", n => self.parse_nat(n));
719 let fd = fs.open(STATEFILE, "w");
723 zones: this.state.zones,
724 ipsets: this.state.ipsets,
725 networks: this.state.networks,
726 ubus_rules: this.state.ubus_rules
732 warn(`Unable to write '${STATEFILE}': ${fs.error()}\n`);
737 warn: function(fmt, ...args) {
741 let msg = sprintf(fmt, ...args);
744 warn(`\033[33m${msg}\033[m\n`);
746 warn(`[!] ${msg}\n`);
749 get: function(sid, opt) {
750 return this.cursor.get("firewall", sid, opt);
753 get_all: function(sid) {
754 return this.cursor.get_all("firewall", sid);
757 parse_options: function(s, spec) {
760 for (let key, val in spec) {
761 let datatype = `parse_${val[0]}`,
764 parsefn = (flags & PARSE_LIST) ? "parse_list" : "parse_opt";
766 let res = this[parsefn](s, key, datatype, defval, flags);
771 if (type(res) == "object" && res.invert && (flags & NO_INVERT)) {
772 this.warn_section(s, `option '${key}' must not be negated`);
777 if (flags & DEPRECATED)
778 this.warn_section(s, `option '${key}' is deprecated by fw4`);
779 else if (flags & UNSUPPORTED)
780 this.warn_section(s, `option '${key}' is not supported by fw4`);
787 if (index(opt, '.') != 0 && opt != 'type' && !exists(spec, opt)) {
788 this.warn_section(s, `specifies unknown option '${opt}'`);
795 parse_subnet: function(subnet) {
796 let parts = split(subnet, "/");
799 switch (length(parts)) {
801 a = iptoarr(parts[0]);
802 m = iptoarr(parts[1]);
808 if (length(a) != length(m))
811 b = to_bits(parts[1]);
813 /* allow non-contiguous masks such as `::ffff:ffff:ffff:ffff` */
826 if (type(b) != "int")
829 m = to_mask(b, length(a) == 16);
833 family: (length(a) == 16) ? 6 : 4,
840 parts = split(parts[0], "-");
842 switch (length(parts)) {
844 a = iptoarr(parts[0]);
845 b = iptoarr(parts[1]);
847 if (a && b && length(a) == length(b)) {
849 family: (length(a) == 16) ? 6 : 4,
859 a = iptoarr(parts[0]);
863 family: (length(a) == 16) ? 6 : 4,
865 mask: to_mask(length(a) * 8, length(a) == 16),
870 n = this.state.networks[parts[0]];
873 return [ ...(n.ipaddrs || []) ];
880 parse_enum: function(val, choices) {
881 if (type(val) == "string") {
884 for (let i = 0; i < length(choices); i++)
885 if (lc(substr(choices[i], 0, length(val))) == val)
892 section_id: function(sid) {
893 let s = this.get_all(sid);
898 if (s[".anonymous"]) {
901 this.cursor.foreach("firewall", s[".type"], function(ss) {
902 if (ss[".name"] == s[".name"])
908 return `@${s['.type']}[${c}]`;
914 warn_section: function(s, msg) {
917 this.warn("Section %s (%s) %s", this.section_id(s[".name"]), s.name, msg);
919 this.warn("Section %s %s", this.section_id(s[".name"]), msg);
923 this.warn("ubus %s (%s) %s", s.type || "rule", s.name, msg);
925 this.warn("ubus %s %s", s.type || "rule", msg);
929 parse_policy: function(val) {
930 return this.parse_enum(val, [
937 parse_bool: function(val) {
938 if (val == "1" || val == "on" || val == "true" || val == "yes")
940 else if (val == "0" || val == "off" || val == "false" || val == "no")
946 parse_family: function(val) {
947 if (val == 'any' || val == 'all' || val == '*')
949 else if (val == 'inet' || index(val, '4') > -1)
951 else if (index(val, '6') > -1)
957 parse_zone_ref: function(val) {
962 return { any: true };
964 for (let zone in this.state.zones) {
965 if (zone.name == val) {
976 parse_device: function(val) {
977 let rv = this.parse_invert(val);
990 parse_direction: function(val) {
991 if (val == 'in' || val == 'ingress')
993 else if (val == 'out' || val == 'egress')
999 parse_setmatch: function(val) {
1000 let rv = this.parse_invert(val);
1005 rv.val = trim(replace(rv.val, /^[^ \t]+/, function(m) {
1010 let dir = split(rv.val, /[ \t,]/);
1012 for (let i = 0; i < 3 && i < length(dir); i++) {
1013 if (dir[i] == "dst" || dir[i] == "dest")
1014 (rv.dir ||= [])[i] = "dst";
1015 else if (dir[i] == "src")
1016 (rv.dir ||= [])[i] = "src";
1019 return length(rv.name) ? rv : null;
1022 parse_cthelper: function(val) {
1023 let rv = this.parse_invert(val);
1028 let helper = filter(this.state.helpers, h => (h.name == rv.val))[0];
1030 return helper ? { ...rv, ...helper } : null;
1033 parse_protocol: function(val) {
1034 let p = this.parse_invert(val);
1056 p.name = 'ipv6-icmp';
1061 { invert: p.invert, name: 'tcp' },
1062 { invert: p.invert, name: 'udp' }
1077 return (p.any || length(p.name)) ? p : null;
1080 parse_mac: function(val) {
1081 let mac = this.parse_invert(val);
1082 let m = mac ? match(mac.val, /^([0-9a-f]{1,2})[:-]([0-9a-f]{1,2})[:-]([0-9a-f]{1,2})[:-]([0-9a-f]{1,2})[:-]([0-9a-f]{1,2})[:-]([0-9a-f]{1,2})$/i) : null;
1087 mac.mac = sprintf('%02x:%02x:%02x:%02x:%02x:%02x',
1088 hex(m[1]), hex(m[2]), hex(m[3]),
1089 hex(m[4]), hex(m[5]), hex(m[6]));
1094 parse_port: function(val) {
1095 let port = this.parse_invert(val);
1096 let m = port ? match(port.val, /^([0-9]{1,5})([-:]([0-9]{1,5}))?$/i) : null;
1102 let min_port = +m[1];
1103 let max_port = +m[3];
1105 if (min_port > max_port ||
1106 min_port < 0 || max_port < 0 ||
1107 min_port > 65535 || max_port > 65535)
1110 port.min = min_port;
1111 port.max = max_port;
1116 if (pn != pn || pn < 0 || pn > 65535)
1126 parse_network: function(val) {
1127 let rv = this.parse_invert(val);
1132 let nets = this.parse_subnet(rv.val);
1138 rv.addrs = [ ...nets ];
1143 parse_icmptype: function(val) {
1146 if (exists(ipv4_icmptypes, val)) {
1149 rv.type = ipv4_icmptypes[val][0];
1150 rv.code_min = ipv4_icmptypes[val][1];
1151 rv.code_max = ipv4_icmptypes[val][2];
1154 if (exists(ipv6_icmptypes, val)) {
1155 rv.family = rv.family ? 0 : 6;
1157 rv.type6 = ipv6_icmptypes[val][0];
1158 rv.code6_min = ipv6_icmptypes[val][1];
1159 rv.code6_max = ipv6_icmptypes[val][2];
1162 if (!exists(rv, "family")) {
1163 let m = match(val, /^([0-9]+)(\/([0-9]+))?$/);
1170 rv.code_min = +m[3];
1171 rv.code_max = rv.code_min;
1179 if (rv.type > 0xFF || rv.code_min > 0xFF || rv.code_max > 0xFF)
1185 rv.code6_min = rv.code_min;
1186 rv.code6_max = rv.code_max;
1192 parse_invert: function(val) {
1196 let rv = { invert: false };
1198 rv.val = trim(replace(val, /^[ \t]*!/, () => (rv.invert = true, '')));
1200 return length(rv.val) ? rv : null;
1203 parse_limit: function(val) {
1204 let rv = this.parse_invert(val);
1205 let m = rv ? match(rv.val, /^([0-9]+)(\/([a-z]+))?$/) : null;
1211 let u = m[3] ? this.parse_enum(m[3], [ "second", "minute", "hour", "day" ]) : "second";
1222 parse_int: function(val) {
1225 return (n == n) ? n : null;
1228 parse_date: function(val) {
1229 let m = match(val, /^([0-9-]+)T([0-9:]+)$/);
1230 let d = m ? match(m[1], /^([0-9]{1,4})(-([0-9]{1,2})(-([0-9]{1,2}))?)?$/) : null;
1231 let t = this.parse_time(m[2]);
1236 if (d == null || d[1] < 1970 || d[1] > 2038 || d[3] < 1 || d[3] > 12 || d[5] < 1 || d[5] > 31)
1246 hour: t ? +t[1] : 0,
1252 parse_time: function(val) {
1253 let t = match(val, /^([0-9]{1,2})(:([0-9]{1,2})(:([0-9]{1,2}))?)?$/);
1255 if (t == null || t[1] > 23 || t[3] > 59 || t[5] > 59)
1265 parse_weekdays: function(val) {
1266 let rv = this.parse_invert(val);
1271 for (let day in to_array(rv.val)) {
1272 day = this.parse_enum(day, [
1285 (rv.days ||= {})[day] = true;
1288 rv.days = keys(rv.days);
1290 return rv.days ? rv : null;
1293 parse_monthdays: function(val) {
1294 let rv = this.parse_invert(val);
1299 for (let day in to_array(rv.val)) {
1302 if (day < 1 || day > 31)
1305 (rv.days ||= [])[day] = true;
1308 return rv.days ? rv : null;
1311 parse_mark: function(val) {
1312 let rv = this.parse_invert(val);
1313 let m = rv ? match(rv.val, /^(0?x?[0-9a-f]+)(\/(0?x?[0-9a-f]+))?$/i) : null;
1320 if (n != n || n > 0xFFFFFFFF)
1324 rv.mask = 0xFFFFFFFF;
1329 if (n != n || n > 0xFFFFFFFF)
1338 parse_dscp: function(val) {
1339 let rv = this.parse_invert(val);
1344 rv.val = uc(rv.val);
1346 if (exists(dscp_classes, rv.val)) {
1347 rv.dscp = dscp_classes[rv.val];
1352 if (n != n || n < 0 || n > 0x3F)
1361 parse_target: function(val) {
1362 return this.parse_enum(val, [
1379 parse_reject_code: function(val) {
1380 return this.parse_enum(val, [
1389 parse_reflection_source: function(val) {
1390 return this.parse_enum(val, [
1396 parse_ipsettype: function(val) {
1397 let m = match(val, /^(src|dst|dest)_(.+)$/);
1398 let t = this.parse_enum(m ? m[2] : val, [
1406 return t ? [ (!m || m[1] == 'src') ? 'src' : 'dst', t ] : null;
1409 parse_ipsetentry: function(val, set) {
1410 let values = split(val, /[ \t]+/);
1412 if (length(values) != length(set.types))
1418 for (let i, t in set.types) {
1421 ip = filter(this.parse_subnet(values[i]), a => (a.family == 4));
1423 switch (length(ip) ?? 0) {
1424 case 0: return null;
1426 default: this.warn("Set entry '%s' resolves to multiple addresses, using first one", values[i]);
1429 rv[i] = ("net" in set.fw4types) ? `${ip[0].addr}/${ip[0].bits}` : ip[0].addr;
1433 ip = filter(this.parse_subnet(values[i]), a => (a.family == 6));
1435 switch(length(ip)) {
1436 case 0: return null;
1438 case 2: this.warn("Set entry '%s' resolves to multiple addresses, using first one", values[i]);
1441 rv[i] = ("net" in set.fw4types) ? `${ip[0].addr}/${ip[0].bits}` : ip[0].addr;
1446 mac = this.parse_mac(values[i]);
1448 if (!mac || mac.invert)
1454 case 'inet_service':
1455 port = this.parse_port(values[i]);
1457 if (!port || port.invert || port.min != port.max)
1468 return length(rv) ? rv : null;
1471 parse_string: function(val) {
1475 parse_opt: function(s, opt, fn, defval, flags) {
1479 if (flags & REQUIRED) {
1480 this.warn_section(s, `option '${opt}' is mandatory but not set`);
1487 if (type(val) == "array") {
1488 this.warn_section(s, `option '${opt}' must not be a list`);
1491 else if (val == null) {
1495 let res = this[fn](val);
1498 this.warn_section(s, `option '${opt}' specifies invalid value '${val}'`);
1505 parse_list: function(s, opt, fn, defval, flags) {
1510 if (flags & REQUIRED) {
1511 this.warn_section(s, `option '${opt}' is mandatory but not set`);
1518 for (val in to_array(val)) {
1519 let res = this[fn](val);
1522 this.warn_section(s, `option '${opt}' specifies invalid value '${val}'`);
1526 if (flags & FLATTEN_LIST)
1527 push(rv, ...to_array(res));
1532 return length(rv) ? rv : null;
1535 quote: function(s, force) {
1536 if (force === true || !match(s, /^([0-9A-Fa-f:.\/-]+)( \. [0-9A-Fa-f:.\/-]+)*$/))
1537 return `"${replace(s + "", /(["\\])/g, '\\$1')}"`;
1544 return `${a.addr}-${a.addr2}`;
1546 if ((a.family == 4 && a.bits == 32) ||
1547 (a.family == 6 && a.bits == 128))
1551 return `${apply_mask(a.addr, a.bits)}/${a.bits}`;
1553 return `${a.addr}/${a.mask}`;
1556 host: function(a, v6brackets) {
1558 ? `${a.addr}-${a.addr2}`
1559 : (a.family == 6 && v6brackets)
1560 ? `[${apply_mask(a.addr, a.bits)}]` : apply_mask(a.addr, a.bits);
1567 return `${p.min}-${p.max}`;
1570 set: function(v, force) {
1573 v = filter(to_array(v), item => !seen[item]++);
1575 if (force || length(v) != 1)
1576 return `{ ${join(', ', map(v, this.quote))} }`;
1578 return this.quote(v[0]);
1581 concat: function(v) {
1582 return join(' . ', to_array(v));
1585 ipproto: function(family) {
1595 nfproto: function(family, human_readable) {
1598 return human_readable ? "IPv4" : "ipv4";
1601 return human_readable ? "IPv6" : "ipv6";
1604 return human_readable ? "IPv4/IPv6" : null;
1608 l4proto: function(family, proto) {
1609 switch (proto.name) {
1611 switch (family ?? 0) {
1613 return this.set(['icmp', 'ipv6-icmp']);
1624 datetime: function(stamp) {
1625 return sprintf('"%04d-%02d-%02d %02d:%02d:%02d"',
1626 stamp.year, stamp.month, stamp.day,
1627 stamp.hour, stamp.min, stamp.sec);
1630 date: function(stamp) {
1631 return sprintf('"%04d-%02d-%02d"', stamp.year, stamp.month, stamp.day);
1634 time: function(stamp) {
1635 return sprintf('"%02d:%02d:%02d"', stamp.hour, stamp.min, stamp.sec);
1639 return sprintf('0x%x', n);
1642 is_loopback_dev: function(dev) {
1643 let fd = fs.open(`/sys/class/net/${dev}/flags`, "r");
1648 let flags = +fd.read("line");
1652 return !!(flags & 0x8);
1655 is_loopback_addr: function(addr) {
1656 return (index(addr, "127.") == 0 || addr == "::1" || addr == "::1/128");
1659 filter_loopback_devs: function(devs, invert) {
1660 return null_if_empty(filter(devs, d => (this.is_loopback_dev(d) == invert)));
1663 filter_loopback_addrs: function(addrs, invert) {
1664 return null_if_empty(filter(addrs, a => (this.is_loopback_addr(a) == invert)));
1668 input_policy: function(reject_as_drop) {
1669 return (!reject_as_drop || this.state.defaults.input != 'reject') ? this.state.defaults.input : 'drop';
1672 output_policy: function(reject_as_drop) {
1673 return (!reject_as_drop || this.state.defaults.output != 'reject') ? this.state.defaults.output : 'drop';
1676 forward_policy: function(reject_as_drop) {
1677 return (!reject_as_drop || this.state.defaults.forward != 'reject') ? this.state.defaults.forward : 'drop';
1680 default_option: function(flag) {
1681 return this.state.defaults[flag];
1684 helpers: function() {
1685 return this.state.helpers;
1689 return this.state.zones;
1692 rules: function(chain) {
1693 return filter(this.state.rules, r => (r.chain == chain));
1696 redirects: function(chain) {
1697 return filter(this.state.redirects, r => (r.chain == chain));
1700 ipsets: function() {
1701 return this.state.ipsets;
1704 parse_setfile: function(set, cb) {
1705 let fd = fs.open(set.loadfile, "r");
1708 warn(`Unable to load file '${set.loadfile}' for set '${set.name}': ${fs.error()}\n`);
1712 let line = null, count = 0;
1714 while ((line = fd.read("line")) !== "") {
1717 if (length(line) == 0 || ord(line) == 35)
1720 let v = this.parse_ipsetentry(line, set);
1723 this.warn(`Skipping invalid entry '${line}' in file '${set.loadfile}' for set '${set.name}'`);
1737 print_setentries: function(set) {
1739 let printer = (entry) => {
1741 print("\t\telements = {\n");
1745 print("\t\t\t", join(" . ", entry), ",\n");
1748 map(set.entries, printer);
1751 this.parse_setfile(set, printer);
1757 parse_helper: function(data) {
1758 let helper = this.parse_options(data, {
1759 name: [ "string", null, REQUIRED ],
1760 description: [ "string" ],
1761 module: [ "string" ],
1762 family: [ "family" ],
1763 proto: [ "protocol", null, PARSE_LIST | FLATTEN_LIST | NO_INVERT ],
1764 port: [ "port", null, NO_INVERT ]
1767 if (helper === false) {
1768 this.warn("Helper definition '%s' skipped due to invalid options", data.name || data['.name']);
1771 else if (helper.proto.any) {
1772 this.warn("Helper definition '%s' must not specify wildcard protocol", data.name || data['.name']);
1775 else if (length(helper.proto) > 1) {
1776 this.warn("Helper definition '%s' must not specify multiple protocols", data.name || data['.name']);
1780 helper.available = (fs.stat(`/sys/module/${helper.module}`)?.type == "directory");
1782 push(this.state.helpers ||= [], helper);
1785 parse_defaults: function(data) {
1786 if (this.state.defaults) {
1787 this.warn_section(data, ": ignoring duplicate defaults section");
1791 let defs = this.parse_options(data, {
1792 input: [ "policy", "drop" ],
1793 output: [ "policy", "drop" ],
1794 forward: [ "policy", "drop" ],
1796 drop_invalid: [ "bool" ],
1797 tcp_reject_code: [ "reject_code", "tcp-reset" ],
1798 any_reject_code: [ "reject_code", "port-unreachable" ],
1800 syn_flood: [ "bool" ],
1801 synflood_protect: [ "bool" ],
1802 synflood_rate: [ "limit", "25/second" ],
1803 synflood_burst: [ "int", "50" ],
1805 tcp_syncookies: [ "bool", "1" ],
1807 tcp_window_scaling: [ "bool", "1" ],
1809 accept_redirects: [ "bool" ],
1810 accept_source_route: [ "bool" ],
1812 auto_helper: [ "bool", "1" ],
1813 custom_chains: [ "bool", null, UNSUPPORTED ],
1814 disable_ipv6: [ "bool", null, UNSUPPORTED ],
1815 flow_offloading: [ "bool", "0" ],
1816 flow_offloading_hw: [ "bool", "0" ]
1819 if (defs.synflood_protect === null)
1820 defs.synflood_protect = defs.syn_flood;
1822 delete defs.syn_flood;
1824 this.state.defaults = defs;
1827 parse_zone: function(data) {
1828 let zone = this.parse_options(data, {
1829 enabled: [ "bool", "1" ],
1831 name: [ "string", null, REQUIRED ],
1832 family: [ "family" ],
1834 network: [ "device", null, PARSE_LIST ],
1835 device: [ "device", null, PARSE_LIST ],
1836 subnet: [ "network", null, PARSE_LIST ],
1838 input: [ "policy", this.state.defaults ? this.state.defaults.input : "drop" ],
1839 output: [ "policy", this.state.defaults ? this.state.defaults.output : "drop" ],
1840 forward: [ "policy", this.state.defaults ? this.state.defaults.forward : "drop" ],
1843 masq_allow_invalid: [ "bool" ],
1844 masq_src: [ "network", null, PARSE_LIST ],
1845 masq_dest: [ "network", null, PARSE_LIST ],
1849 extra: [ "string", null, UNSUPPORTED ],
1850 extra_src: [ "string", null, UNSUPPORTED ],
1851 extra_dest: [ "string", null, UNSUPPORTED ],
1853 mtu_fix: [ "bool" ],
1854 custom_chains: [ "bool", null, UNSUPPORTED ],
1857 log_limit: [ "limit", null, UNSUPPORTED ],
1859 auto_helper: [ "bool", "1" ],
1860 helper: [ "cthelper", null, PARSE_LIST ],
1862 counter: [ "bool", "1" ]
1865 if (zone === false) {
1866 this.warn_section(data, "skipped due to invalid options");
1869 else if (!zone.enabled) {
1870 this.warn_section(data, "is disabled, ignoring section");
1873 else if (zone.helper && !zone.helper.available) {
1874 this.warn_section(data, `uses unavailable ct helper '${zone.helper.name}', ignoring section`);
1878 if (zone.mtu_fix && this.kernel < 0x040a0000) {
1879 this.warn_section(data, "option 'mtu_fix' requires kernel 4.10 or later");
1883 if (this.state.defaults?.auto_helper === false)
1884 zone.auto_helper = false;
1886 let match_devices = [];
1887 let related_physdevs = [];
1888 let related_subnets = [];
1889 let related_ubus_networks = [];
1890 let match_subnets, masq_src_subnets, masq_dest_subnets;
1892 for (let name, net in this.state.networks) {
1893 if (net.zone === zone.name)
1894 push(related_ubus_networks, { invert: false, device: name });
1897 for (let e in [ ...to_array(zone.network), ...related_ubus_networks ]) {
1898 if (exists(this.state.networks, e.device)) {
1899 let net = this.state.networks[e.device];
1902 push(match_devices, {
1908 if (net.physdev && !e.invert)
1909 push(related_physdevs, net.physdev);
1911 push(related_subnets, ...(net.ipaddrs || []));
1915 push(match_devices, ...to_array(zone.device));
1917 match_subnets = subnets_split_af(zone.subnet);
1918 masq_src_subnets = subnets_split_af(zone.masq_src);
1919 masq_dest_subnets = subnets_split_af(zone.masq_dest);
1921 push(related_subnets, ...(match_subnets[0] || []), ...(match_subnets[1] || []));
1923 let match_rules = [];
1925 let add_rule = (family, devices, subnets, zone) => {
1930 r.devices_pos = null_if_empty(devices[0]);
1931 r.devices_neg = null_if_empty(devices[1]);
1932 r.devices_neg_wildcard = null_if_empty(devices[2]);
1934 r.subnets_pos = map(subnets[0], this.cidr);
1935 r.subnets_neg = map(subnets[1], this.cidr);
1936 r.subnets_masked = subnets[2];
1938 push(match_rules, r);
1941 let family = infer_family(zone.family, [
1942 zone.helper, "ct helper",
1943 match_subnets, "subnet list"
1946 if (type(family) == "string") {
1947 this.warn_section(data, `${family}, skipping`);
1951 // group non-inverted device matches into wildcard and non-wildcard ones
1952 let devices = [], plain_devices = [], plain_invert_devices = [], wildcard_invert_devices = [];
1954 for (let device in match_devices) {
1955 let m = match(device.device, /^([^+]*)(\+)?$/);
1958 this.warn_section(data, `skipping invalid wildcard pattern '${device.device}'`);
1962 // filter `+` (match any device) since nftables does not support
1963 // wildcard only matches
1964 if (!device.invert && m[0] == '+')
1967 // replace inverted `+` (match no device) with invalid pattern
1968 if (device.invert && m[0] == '+') {
1969 device.device = '/never/';
1970 device.invert = false;
1973 // replace "name+" matches with "name*"
1974 else if (m[2] == '+')
1975 device.device = m[1] + '*';
1977 device.wildcard = !!m[2];
1979 if (!device.invert && device.wildcard)
1980 push(devices, [ [ device.device ], plain_invert_devices, wildcard_invert_devices ]);
1981 else if (!device.invert)
1982 push(plain_devices, device.device);
1983 else if (device.wildcard)
1984 push(wildcard_invert_devices, device.device);
1986 push(plain_invert_devices, device.device);
1989 if (length(plain_devices))
1992 plain_invert_devices,
1993 wildcard_invert_devices
1995 else if (!length(devices))
1998 plain_invert_devices,
1999 wildcard_invert_devices
2002 // emit zone jump rules for each device group
2003 if (length(match_devices) || length(match_subnets[0]) || length(match_subnets[1])) {
2004 for (let devgroup in devices) {
2005 // check if there's no AF specific bits, in this case we can do AF agnostic matching
2006 if (!family && !length(match_subnets[0]) && !length(match_subnets[1])) {
2007 add_rule(0, devgroup, [], zone);
2010 // we need to emit one or two AF specific rules
2012 if (!family || family == 4)
2013 for (let subnets in subnets_group_by_masking(match_subnets[0]))
2014 add_rule(4, devgroup, subnets, zone);
2016 if (!family || family == 6)
2017 for (let subnets in subnets_group_by_masking(match_subnets[1]))
2018 add_rule(6, devgroup, subnets, zone);
2023 zone.family = family;
2025 zone.match_rules = match_rules;
2027 zone.masq4_src_subnets = subnets_group_by_masking(masq_src_subnets[0]);
2028 zone.masq4_dest_subnets = subnets_group_by_masking(masq_dest_subnets[0]);
2030 zone.masq6_src_subnets = subnets_group_by_masking(masq_src_subnets[1]);
2031 zone.masq6_dest_subnets = subnets_group_by_masking(masq_dest_subnets[1]);
2034 zone.sflags[zone.input] = true;
2037 zone.dflags[zone.output] = true;
2038 zone.dflags[zone.forward] = true;
2040 zone.match_devices = map(filter(match_devices, d => !d.invert), d => d.device);
2041 zone.match_subnets = map(filter(related_subnets, s => !s.invert && s.bits != -1), this.cidr);
2043 zone.related_subnets = related_subnets;
2044 zone.related_physdevs = related_physdevs;
2046 if (zone.masq || zone.masq6)
2047 zone.dflags.snat = true;
2049 if ((zone.auto_helper && !(zone.masq || zone.masq6)) || length(zone.helper)) {
2050 zone.dflags.helper = true;
2052 for (let helper in (length(zone.helper) ? zone.helper : this.state.helpers)) {
2053 if (!helper.available)
2056 for (let proto in helper.proto) {
2057 push(this.state.rules ||= [], {
2058 chain: `helper_${zone.name}`,
2059 family: helper.family,
2060 name: helper.description || helper.name,
2063 dports_pos: [ this.port(helper.port) ],
2071 push(this.state.zones ||= [], zone);
2074 parse_forwarding: function(data) {
2075 let fwd = this.parse_options(data, {
2076 enabled: [ "bool", "1" ],
2079 family: [ "family" ],
2081 src: [ "zone_ref", null, REQUIRED ],
2082 dest: [ "zone_ref", null, REQUIRED ]
2085 if (fwd === false) {
2086 this.warn_section(data, "skipped due to invalid options");
2089 else if (!fwd.enabled) {
2090 this.warn_section(data, "is disabled, ignoring section");
2094 let add_rule = (family, fwd) => {
2099 proto: { any: true }
2102 f.name ||= `Accept ${fwd.src.any ? "any" : fwd.src.zone.name} to ${fwd.dest.any ? "any" : fwd.dest.zone.name} forwarding`;
2103 f.chain = fwd.src.any ? "forward" : `forward_${fwd.src.zone.name}`;
2106 f.target = "accept";
2108 f.jump_chain = `accept_to_${fwd.dest.zone.name}`;
2110 push(this.state.rules ||= [], f);
2114 let family = fwd.family;
2116 /* inherit family restrictions from related zones */
2117 if (family === 0 || family === null) {
2118 let f1 = fwd.src.zone ? fwd.src.zone.family : 0;
2119 let f2 = fwd.dest.zone ? fwd.dest.zone.family : 0;
2121 if (f1 && f2 && f1 != f2) {
2122 this.warn_section(data,
2123 `references src ${fwd.src.zone.name} restricted to ${this.nfproto(f1, true)} and dest ${fwd.dest.zone.name} restricted to ${this.nfproto(f2, true)}, ignoring forwarding`);
2128 this.warn_section(data,
2129 `inheriting ${this.nfproto(f1, true)} restriction from src ${fwd.src.zone.name}`);
2134 this.warn_section(data,
2135 `inheriting ${this.nfproto(f2, true)} restriction from dest ${fwd.dest.zone.name}`);
2141 add_rule(family, fwd);
2144 fwd.dest.zone.dflags.accept = true;
2147 parse_rule: function(data) {
2148 let rule = this.parse_options(data, {
2149 enabled: [ "bool", "1" ],
2151 name: [ "string", this.section_id(data[".name"]) ],
2152 _name: [ "string", null, DEPRECATED ],
2153 family: [ "family" ],
2155 src: [ "zone_ref" ],
2156 dest: [ "zone_ref" ],
2158 device: [ "device", null, NO_INVERT ],
2159 direction: [ "direction" ],
2161 ipset: [ "setmatch" ],
2162 helper: [ "cthelper" ],
2163 set_helper: [ "cthelper", null, NO_INVERT ],
2165 proto: [ "protocol", "tcpudp", PARSE_LIST | FLATTEN_LIST ],
2167 src_ip: [ "network", null, PARSE_LIST ],
2168 src_mac: [ "mac", null, PARSE_LIST ],
2169 src_port: [ "port", null, PARSE_LIST ],
2171 dest_ip: [ "network", null, PARSE_LIST ],
2172 dest_port: [ "port", null, PARSE_LIST ],
2174 icmp_type: [ "icmptype", null, PARSE_LIST ],
2175 extra: [ "string", null, UNSUPPORTED ],
2178 limit_burst: [ "int" ],
2180 utc_time: [ "bool" ],
2181 start_date: [ "date" ],
2182 stop_date: [ "date" ],
2183 start_time: [ "time" ],
2184 stop_time: [ "time" ],
2185 weekdays: [ "weekdays" ],
2186 monthdays: [ "monthdays", null, UNSUPPORTED ],
2189 set_mark: [ "mark", null, NO_INVERT ],
2190 set_xmark: [ "mark", null, NO_INVERT ],
2193 set_dscp: [ "dscp", null, NO_INVERT ],
2195 counter: [ "bool", "1" ],
2197 target: [ "target" ]
2200 if (rule === false) {
2201 this.warn_section(data, "skipped due to invalid options");
2204 else if (!rule.enabled) {
2205 this.warn_section(data, "is disabled, ignoring section");
2209 if (rule.target in ["helper", "notrack"] && (!rule.src || !rule.src.zone)) {
2210 this.warn_section(data, `must specify a source zone for target '${rule.target}'`);
2213 else if (rule.target == "dscp" && !rule.set_dscp) {
2214 this.warn_section(data, "must specify option 'set_dscp' for target 'dscp'");
2217 else if (rule.target == "mark" && !rule.set_mark && !rule.set_xmark) {
2218 this.warn_section(data, "must specify option 'set_mark' or 'set_xmark' for target 'mark'");
2221 else if (rule.target == "helper" && !rule.set_helper) {
2222 this.warn_section(data, "must specify option 'set_helper' for target 'helper'");
2225 else if (rule.device?.any) {
2226 this.warn_section(data, "must not specify '*' as device");
2233 ipset = filter(this.state.ipsets, s => (s.name == rule.ipset.name))[0];
2236 this.warn_section(data, `references unknown set '${rule.ipset.name}'`);
2240 if (('inet_service' in ipset.types) && !ensure_tcpudp(rule.proto)) {
2241 this.warn_section(data, "references named set with port match but no UDP/TCP protocol, ignoring section");
2246 let need_src_action_chain = (rule) => (rule.src?.zone?.log && rule.target != "accept");
2248 let add_rule = (family, proto, saddrs, daddrs, sports, dports, icmptypes, icmpcodes, ipset, rule) => {
2254 has_addrs: !!(saddrs[0] || saddrs[1] || saddrs[2] || daddrs[0] || daddrs[1] || daddrs[2]),
2255 has_ports: !!(length(sports) || length(dports)),
2256 saddrs_pos: map(saddrs[0], this.cidr),
2257 saddrs_neg: map(saddrs[1], this.cidr),
2258 saddrs_masked: saddrs[2],
2259 daddrs_pos: map(daddrs[0], this.cidr),
2260 daddrs_neg: map(daddrs[1], this.cidr),
2261 daddrs_masked: daddrs[2],
2262 sports_pos: map(filter_pos(sports), this.port),
2263 sports_neg: map(filter_neg(sports), this.port),
2264 dports_pos: map(filter_pos(dports), this.port),
2265 dports_neg: map(filter_neg(dports), this.port),
2266 smacs_pos: map(filter_pos(rule.src_mac), m => m.mac),
2267 smacs_neg: map(filter_neg(rule.src_mac), m => m.mac),
2268 icmp_types: map(icmptypes, i => (family == 4 ? i.type : i.type6)),
2269 icmp_codes: map(icmpcodes, ic => `${(family == 4) ? ic.type : ic.type6} . ${(family == 4) ? ic.code_min : ic.code6_min}`)
2272 if (!length(r.icmp_types))
2273 delete r.icmp_types;
2275 if (!length(r.icmp_codes))
2276 delete r.icmp_codes;
2280 invert: r.set_mark.invert,
2281 mark: r.set_mark.mark,
2282 mask: r.set_mark.mark | r.set_mark.mask
2288 let set_types = map_setmatch(ipset, rule.ipset, proto.name);
2290 if (set_types !== set_types) {
2291 this.warn_section(data, "destination MAC address matching not supported");
2293 } else if (set_types) {
2294 r.ipset = { ...r.ipset, fields: set_types };
2297 if (r.target == "notrack") {
2298 r.chain = `notrack_${r.src.zone.name}`;
2299 r.src.zone.dflags.notrack = true;
2301 else if (r.target == "helper") {
2302 r.chain = `helper_${r.src.zone.name}`;
2303 r.src.zone.dflags.helper = true;
2305 else if (r.target == "mark" || r.target == "dscp") {
2306 if ((r.src?.any && r.dest?.any) || (r.src?.zone && r.dest?.zone))
2307 r.chain = "mangle_forward";
2308 else if (r.src?.any && r.dest?.zone)
2309 r.chain = "mangle_postrouting";
2310 else if (r.src?.zone && r.dest?.any)
2311 r.chain = "mangle_prerouting";
2312 else if (r.src && !r.dest)
2313 r.chain = "mangle_input";
2315 r.chain = "mangle_output";
2318 r.src.zone.dflags[r.target] = true;
2319 r.iifnames = null_if_empty(r.src.zone.match_devices);
2323 r.dest.zone.dflags[r.target] = true;
2324 r.oifnames = null_if_empty(r.dest.zone.match_devices);
2332 r.chain = `${r.dest ? "forward" : "input"}_${r.src.zone.name}`;
2334 r.chain = r.dest ? "forward" : "input";
2337 if (r.dest && !r.src) {
2339 r.chain = sprintf("output_%s", r.dest.zone.name);
2344 if (r.dest && !r.dest.any) {
2345 r.jump_chain = `${r.target}_to_${r.dest.zone.name}`;
2346 r.dest.zone.dflags[r.target] = true;
2348 else if (need_src_action_chain(r)) {
2349 r.jump_chain = `${r.target}_from_${r.src.zone.name}`;
2350 r.src.zone.sflags[r.target] = true;
2352 else if (r.target == "reject")
2353 r.jump_chain = "handle_reject";
2357 r[r.direction ? "oifnames" : "iifnames"] = [ r.device.device ];
2359 push(this.state.rules ||= [], r);
2362 for (let proto in rule.proto) {
2363 let sip, dip, sports, dports, itypes4, itypes6;
2364 let family = rule.family;
2366 switch (proto.name) {
2368 itypes4 = filter(rule.icmp_type || [], family_is_ipv4);
2369 itypes6 = filter(rule.icmp_type || [], family_is_ipv6);
2374 itypes6 = filter(rule.icmp_type || [], family_is_ipv6);
2379 sports = rule.src_port;
2380 dports = rule.dest_port;
2384 sip = subnets_split_af(rule.src_ip);
2385 dip = subnets_split_af(rule.dest_ip);
2387 family = infer_family(family, [
2390 dip, "destination IP",
2391 rule.src?.zone, "source zone",
2392 rule.dest?.zone, "destination zone",
2393 rule.helper, "helper match",
2394 rule.set_helper, "helper to set"
2397 if (type(family) == "string") {
2398 this.warn_section(data, `${family}, skipping`);
2402 let has_ipv4_specifics = (length(sip[0]) || length(dip[0]) || length(itypes4) || rule.dscp !== null);
2403 let has_ipv6_specifics = (length(sip[1]) || length(dip[1]) || length(itypes6) || rule.dscp !== null);
2405 /* if no family was configured, infer target family from IP addresses */
2406 if (family === null) {
2407 if (has_ipv4_specifics && !has_ipv6_specifics)
2409 else if (has_ipv6_specifics && !has_ipv4_specifics)
2415 /* check if there's no AF specific bits, in this case we can do an AF agnostic rule */
2416 if (!family && rule.target != "dscp" && !has_ipv4_specifics && !has_ipv6_specifics) {
2417 add_rule(0, proto, [], [], sports, dports, null, null, null, rule);
2420 /* we need to emit one or two AF specific rules */
2422 if (family == 0 || family == 4) {
2423 let icmp_types = filter(itypes4, i => (i.code_min == 0 && i.code_max == 0xFF));
2424 let icmp_codes = filter(itypes4, i => (i.code_min != 0 || i.code_max != 0xFF));
2426 for (let saddrs in subnets_group_by_masking(sip[0])) {
2427 for (let daddrs in subnets_group_by_masking(dip[0])) {
2428 if (length(icmp_types) || (!length(icmp_types) && !length(icmp_codes)))
2429 add_rule(4, proto, saddrs, daddrs, sports, dports, icmp_types, null, ipset, rule);
2431 if (length(icmp_codes))
2432 add_rule(4, proto, saddrs, daddrs, sports, dports, null, icmp_codes, ipset, rule);
2437 if (family == 0 || family == 6) {
2438 let icmp_types = filter(itypes6, i => (i.code_min == 0 && i.code_max == 0xFF));
2439 let icmp_codes = filter(itypes6, i => (i.code_min != 0 || i.code_max != 0xFF));
2441 for (let saddrs in subnets_group_by_masking(sip[1])) {
2442 for (let daddrs in subnets_group_by_masking(dip[1])) {
2443 if (length(icmp_types) || (!length(icmp_types) && !length(icmp_codes)))
2444 add_rule(6, proto, saddrs, daddrs, sports, dports, icmp_types, null, ipset, rule);
2446 if (length(icmp_codes))
2447 add_rule(6, proto, saddrs, daddrs, sports, dports, null, icmp_codes, ipset, rule);
2455 parse_redirect: function(data) {
2456 let redir = this.parse_options(data, {
2457 enabled: [ "bool", "1" ],
2459 name: [ "string", this.section_id(data[".name"]) ],
2460 _name: [ "string", null, DEPRECATED ],
2461 family: [ "family" ],
2463 src: [ "zone_ref" ],
2464 dest: [ "zone_ref" ],
2466 ipset: [ "setmatch" ],
2467 helper: [ "cthelper", null, NO_INVERT ],
2469 proto: [ "protocol", "tcpudp", PARSE_LIST | FLATTEN_LIST ],
2471 src_ip: [ "network" ],
2472 src_mac: [ "mac", null, PARSE_LIST ],
2473 src_port: [ "port" ],
2475 src_dip: [ "network" ],
2476 src_dport: [ "port" ],
2478 dest_ip: [ "network" ],
2479 dest_port: [ "port" ],
2481 extra: [ "string", null, UNSUPPORTED ],
2484 limit_burst: [ "int" ],
2486 utc_time: [ "bool" ],
2487 start_date: [ "date" ],
2488 stop_date: [ "date" ],
2489 start_time: [ "time" ],
2490 stop_time: [ "time" ],
2491 weekdays: [ "weekdays" ],
2492 monthdays: [ "monthdays", null, UNSUPPORTED ],
2496 reflection: [ "bool", "1" ],
2497 reflection_src: [ "reflection_source", "internal" ],
2499 reflection_zone: [ "zone_ref", null, PARSE_LIST ],
2501 counter: [ "bool", "1" ],
2503 target: [ "target", "dnat" ]
2506 if (redir === false) {
2507 this.warn_section(data, "skipped due to invalid options");
2510 else if (!redir.enabled) {
2511 this.warn_section(data, "is disabled, ignoring section");
2515 if (!(redir.target in ["dnat", "snat"])) {
2516 this.warn_section(data, "has invalid target specified, defaulting to dnat");
2517 redir.target = "dnat";
2523 ipset = filter(this.state.ipsets, s => (s.name == redir.ipset.name))[0];
2526 this.warn_section(data, `references unknown set '${redir.ipset.name}'`);
2530 if (('inet_service' in ipset.types) && !ensure_tcpudp(redir.proto)) {
2531 this.warn_section(data, "references named set with port match but no UDP/TCP protocol, ignoring section");
2536 let resolve_dest = (redir) => {
2537 for (let zone in this.state.zones) {
2538 for (let zone_addr in zone.related_subnets) {
2539 for (let dest_addr in redir.dest_ip.addrs) {
2540 if (dest_addr.family != zone_addr.family)
2543 let a = apply_mask(dest_addr.addr, zone_addr.mask);
2544 let b = apply_mask(zone_addr.addr, zone_addr.mask);
2562 if (redir.target == "dnat") {
2564 return this.warn_section(data, "has no source specified");
2565 else if (redir.src.any)
2566 return this.warn_section(data, "must not have source '*' for dnat target");
2567 else if (redir.dest_ip && redir.dest_ip.invert)
2568 return this.warn_section(data, "must not specify a negated 'dest_ip' value");
2569 else if (redir.dest_ip && length(filter(redir.dest_ip.addrs, a => a.bits == -1)))
2570 return this.warn_section(data, "must not use non-contiguous masks in 'dest_ip'");
2572 if (!redir.dest && redir.dest_ip && resolve_dest(redir))
2573 this.warn_section(data, `does not specify a destination, assuming '${redir.dest.zone.name}'`);
2575 if (!redir.dest_port)
2576 redir.dest_port = redir.src_dport;
2578 if (redir.reflection && redir.dest?.zone && redir.src.zone.masq) {
2579 redir.dest.zone.dflags.accept = true;
2580 redir.dest.zone.dflags.dnat = true;
2581 redir.dest.zone.dflags.snat = true;
2585 redir.src.zone.dflags.helper = true;
2587 redir.src.zone.dflags[redir.target] = true;
2591 return this.warn_section(data, "has no destination specified");
2592 else if (redir.dest.any)
2593 return this.warn_section(data, "must not have destination '*' for snat target");
2594 else if (!redir.src_dip)
2595 return this.warn_section(data, "has no 'src_dip' option specified");
2596 else if (redir.src_dip.invert)
2597 return this.warn_section(data, "must not specify a negated 'src_dip' value");
2598 else if (length(filter(redir.src_dip.addrs, a => a.bits == -1)))
2599 return this.warn_section(data, "must not use non-contiguous masks in 'src_dip'");
2600 else if (redir.src_mac)
2601 return this.warn_section(data, "must not use 'src_mac' option for snat target");
2602 else if (redir.helper)
2603 return this.warn_section(data, "must not use 'helper' option for snat target");
2605 redir.dest.zone.dflags[redir.target] = true;
2609 let add_rule = (family, proto, saddrs, daddrs, raddrs, sport, dport, rport, ipset, redir) => {
2615 has_addrs: !!(saddrs[0] || saddrs[1] || saddrs[2] || daddrs[0] || daddrs[1] || daddrs[2]),
2616 has_ports: !!(sport || dport || rport),
2617 saddrs_pos: map(saddrs[0], this.cidr),
2618 saddrs_neg: map(saddrs[1], this.cidr),
2619 saddrs_masked: saddrs[2],
2620 daddrs_pos: map(daddrs[0], this.cidr),
2621 daddrs_neg: map(daddrs[1], this.cidr),
2622 daddrs_masked: daddrs[2],
2623 sports_pos: map(filter_pos(to_array(sport)), this.port),
2624 sports_neg: map(filter_neg(to_array(sport)), this.port),
2625 dports_pos: map(filter_pos(to_array(dport)), this.port),
2626 dports_neg: map(filter_neg(to_array(dport)), this.port),
2627 smacs_pos: map(filter_pos(redir.src_mac), m => m.mac),
2628 smacs_neg: map(filter_neg(redir.src_mac), m => m.mac),
2630 raddr: raddrs ? raddrs[0] : null,
2634 let set_types = map_setmatch(ipset, redir.ipset, proto.name);
2636 if (set_types !== set_types) {
2637 this.warn_section(data, "destination MAC address matching not supported");
2639 } else if (set_types) {
2640 r.ipset = { ...r.ipset, fields: set_types };
2645 r.chain = `dstnat_${r.src.zone.name}`;
2646 r.src.zone.dflags.dnat = true;
2649 r.target = "redirect";
2654 r.chain = `srcnat_${r.dest.zone.name}`;
2655 r.dest.zone.dflags.snat = true;
2659 push(this.state.redirects ||= [], r);
2662 let to_hostaddr = (a) => {
2663 let bits = (a.family == 4) ? 32 : 128;
2667 addr: apply_mask(a.addr, bits),
2672 for (let proto in redir.proto) {
2673 let sip, dip, rip, iip, eip, refip, sport, dport, rport;
2674 let family = redir.family;
2676 if (proto.name == "ipv6-icmp")
2679 switch (redir.target) {
2681 sip = subnets_split_af(redir.src_ip);
2682 dip = subnets_split_af(redir.src_dip);
2683 rip = subnets_split_af(redir.dest_ip);
2685 switch (proto.name) {
2688 sport = redir.src_port;
2689 dport = redir.src_dport;
2690 rport = redir.dest_port;
2697 sip = subnets_split_af(redir.src_ip);
2698 dip = subnets_split_af(redir.dest_ip);
2699 rip = subnets_split_af(redir.src_dip);
2701 switch (proto.name) {
2704 sport = redir.src_port;
2705 dport = redir.dest_port;
2706 rport = redir.src_dport;
2713 family = infer_family(family, [
2716 dip, "destination IP",
2718 redir.src?.zone, "source zone",
2719 redir.dest?.zone, "destination zone",
2720 redir.helper, "helper match"
2723 if (type(family) == "string") {
2724 this.warn_section(data, `${family}, skipping`);
2728 /* build reflection rules */
2729 if (redir.target == "dnat" && redir.reflection &&
2730 (length(rip[0]) || length(rip[1])) && redir.src?.zone && redir.dest?.zone) {
2732 name: `${redir.name} (reflection)`,
2734 helper: redir.helper,
2736 // XXX: this likely makes no sense for reflection rules
2737 //src_mac: redir.src_mac,
2740 limit_burst: redir.limit_burst,
2742 start_date: redir.start_date,
2743 stop_date: redir.stop_date,
2744 start_time: redir.start_time,
2745 stop_time: redir.stop_time,
2746 weekdays: redir.weekdays,
2751 let eaddrs = length(dip) ? dip : subnets_split_af({ addrs: map(redir.src.zone.related_subnets, to_hostaddr) });
2752 let rzones = length(redir.reflection_zone) ? redir.reflection_zone : [ redir.dest ];
2754 for (let rzone in rzones) {
2755 if (!is_family(rzone, family)) {
2756 this.warn_section(data,
2757 `is restricted to IPv${family} but referenced reflection zone is IPv${rzone.family} only, skipping`);
2761 let iaddrs = subnets_split_af({ addrs: rzone.zone.related_subnets });
2762 let refaddrs = (redir.reflection_src == "internal") ? iaddrs : eaddrs;
2764 for (let i = 0; i <= 1; i++) {
2765 if (redir.src.zone[i ? "masq6" : "masq"] && length(rip[i])) {
2766 let snat_addr = refaddrs[i]?.[0];
2768 /* For internal reflection sources try to find a suitable candiate IP
2769 * among the reflection zone subnets which is within the same subnet
2770 * as the original DNAT destination. If we can't find any matching
2771 * one then simply take the first candidate. */
2772 if (redir.reflection_src == "internal") {
2773 for (let zone_addr in rzone.zone.related_subnets) {
2774 if (zone_addr.family != rip[i][0].family)
2777 let r = apply_mask(rip[i][0].addr, zone_addr.mask);
2778 let a = apply_mask(zone_addr.addr, zone_addr.mask);
2783 snat_addr = zone_addr;
2789 this.warn_section(data, `${redir.reflection_src || "external"} rewrite IP cannot be determined, disabling reflection`);
2791 else if (!length(iaddrs[i])) {
2792 this.warn_section(data, "internal address range cannot be determined, disabling reflection");
2794 else if (!length(eaddrs[i])) {
2795 this.warn_section(data, "external address range cannot be determined, disabling reflection");
2798 refredir.src = rzone;
2799 refredir.dest = null;
2800 refredir.target = "dnat";
2802 for (let saddrs in subnets_group_by_masking(iaddrs[i]))
2803 for (let daddrs in subnets_group_by_masking(eaddrs[i]))
2804 add_rule(i ? 6 : 4, proto, saddrs, daddrs, rip[i], sport, dport, rport, null, refredir);
2806 refredir.src = null;
2807 refredir.dest = rzone;
2808 refredir.target = "snat";
2810 for (let daddrs in subnets_group_by_masking(rip[i]))
2811 for (let saddrs in subnets_group_by_masking(iaddrs[i]))
2812 add_rule(i ? 6 : 4, proto, saddrs, daddrs, [ to_hostaddr(snat_addr) ], null, rport, null, null, refredir);
2819 if (length(rip[0]) > 1 || length(rip[1]) > 1)
2820 this.warn_section(data, "specifies multiple rewrite addresses, using only first one");
2822 let has_ip4_addr = length(sip[0]) || length(dip[0]) || length(rip[0]),
2823 has_ip6_addr = length(sip[1]) || length(dip[1]) || length(rip[1]),
2824 has_any_addr = has_ip4_addr || has_ip6_addr;
2826 /* check if there's no AF specific bits, in this case we can do an AF agnostic rule */
2827 if (!family && !has_any_addr) {
2828 /* for backwards compatibility, treat unspecified family as IPv4 unless user explicitly requested any (0) */
2832 add_rule(family, proto, [], [], null, sport, dport, rport, null, redir);
2835 /* we need to emit one or two AF specific rules */
2837 if ((!family || family == 4) && (!has_any_addr || has_ip4_addr)) {
2838 for (let saddrs in subnets_group_by_masking(sip[0]))
2839 for (let daddrs in subnets_group_by_masking(dip[0]))
2840 add_rule(4, proto, saddrs, daddrs, rip[0], sport, dport, rport, ipset, redir);
2843 if ((!family || family == 6) && (!has_any_addr || has_ip6_addr)) {
2844 for (let saddrs in subnets_group_by_masking(sip[1]))
2845 for (let daddrs in subnets_group_by_masking(dip[1]))
2846 add_rule(6, proto, saddrs, daddrs, rip[1], sport, dport, rport, ipset, redir);
2852 parse_nat: function(data) {
2853 let snat = this.parse_options(data, {
2854 enabled: [ "bool", "1" ],
2856 name: [ "string", this.section_id(data[".name"]) ],
2857 family: [ "family" ],
2859 src: [ "zone_ref" ],
2860 device: [ "string" ],
2862 ipset: [ "setmatch", null, UNSUPPORTED ],
2864 proto: [ "protocol", "all", PARSE_LIST | FLATTEN_LIST ],
2866 src_ip: [ "network" ],
2867 src_port: [ "port" ],
2869 snat_ip: [ "network", null, NO_INVERT ],
2870 snat_port: [ "port", null, NO_INVERT ],
2872 dest_ip: [ "network" ],
2873 dest_port: [ "port" ],
2875 extra: [ "string", null, UNSUPPORTED ],
2878 limit_burst: [ "int" ],
2880 connlimit_ports: [ "bool" ],
2882 utc_time: [ "bool" ],
2883 start_date: [ "date" ],
2884 stop_date: [ "date" ],
2885 start_time: [ "time" ],
2886 stop_time: [ "time" ],
2887 weekdays: [ "weekdays" ],
2888 monthdays: [ "monthdays", null, UNSUPPORTED ],
2892 target: [ "target", "masquerade" ]
2895 if (snat === false) {
2896 this.warn_section(data, "skipped due to invalid options");
2899 else if (!snat.enabled) {
2900 this.warn_section(data, "is disabled, ignoring section");
2904 if (!(snat.target in ["accept", "snat", "masquerade"])) {
2905 this.warn_section(data, "has invalid target specified, defaulting to masquerade");
2906 snat.target = "masquerade";
2909 if (snat.target == "snat" && !snat.snat_ip && !snat.snat_port) {
2910 this.warn_section(data, "needs either 'snat_ip' or 'snat_port' for target snat, ignoring section");
2913 else if (snat.target != "snat" && snat.snat_ip) {
2914 this.warn_section(data, "must not use 'snat_ip' for non-snat target, ignoring section");
2917 else if (snat.target != "snat" && snat.snat_port) {
2918 this.warn_section(data, "must not use 'snat_port' for non-snat target, ignoring section");
2922 if ((snat.snat_port || snat.src_port || snat.dest_port) && !ensure_tcpudp(snat.proto)) {
2923 this.warn_section(data, "specifies ports but no UDP/TCP protocol, ignoring section");
2927 if (snat.snat_ip && length(filter(snat.snat_ip.addrs, a => a.bits == -1 || a.invert))) {
2928 this.warn_section(data, "must not use inversion or non-contiguous masks in 'snat_ip', ignoring section");
2932 let add_rule = (family, proto, saddrs, daddrs, raddrs, sport, dport, rport, snat) => {
2938 has_addrs: !!(saddrs[0] || saddrs[1] || saddrs[2] || daddrs[0] || daddrs[1] || daddrs[2]),
2939 has_ports: !!(sport || dport),
2940 saddrs_pos: map(saddrs[0], this.cidr),
2941 saddrs_neg: map(saddrs[1], this.cidr),
2942 saddrs_masked: saddrs[2],
2943 daddrs_pos: map(daddrs[0], this.cidr),
2944 daddrs_neg: map(daddrs[1], this.cidr),
2945 daddrs_masked: daddrs[2],
2946 sports_pos: map(filter_pos(to_array(sport)), this.port),
2947 sports_neg: map(filter_neg(to_array(sport)), this.port),
2948 dports_pos: map(filter_pos(to_array(dport)), this.port),
2949 dports_neg: map(filter_neg(to_array(dport)), this.port),
2951 raddr: raddrs ? raddrs[0] : null,
2954 chain: snat.src?.zone ? `srcnat_${snat.src.zone.name}` : "srcnat"
2957 push(this.state.redirects ||= [], n);
2960 for (let proto in snat.proto) {
2961 let sip, dip, rip, sport, dport, rport;
2962 let family = snat.family;
2964 sip = subnets_split_af(snat.src_ip);
2965 dip = subnets_split_af(snat.dest_ip);
2966 rip = subnets_split_af(snat.snat_ip);
2968 switch (proto.name) {
2971 sport = snat.src_port;
2972 dport = snat.dest_port;
2973 rport = snat.snat_port;
2977 if (length(rip[0]) > 1 || length(rip[1]) > 1)
2978 this.warn_section(data, "specifies multiple rewrite addresses, using only first one");
2980 family = infer_family(family, [
2982 dip, "destination IP",
2984 snat.src?.zone, "source zone"
2987 if (type(family) == "string") {
2988 this.warn_section(data, `${family}, skipping`);
2993 snat.src.zone.dflags.snat = true;
2995 /* if no family was configured, infer target family from IP addresses */
2996 if (family === null) {
2997 if ((length(sip[0]) || length(dip[0]) || length(rip[0])) && !length(sip[1]) && !length(dip[1]) && !length(rip[1]))
2999 else if ((length(sip[1]) || length(dip[1]) || length(rip[1])) && !length(sip[0]) && !length(dip[0]) && !length(rip[0]))
3002 family = 4; /* default to IPv4 only for backwards compatibility, unless an explict family any was configured */
3005 /* check if there's no AF specific bits, in this case we can do an AF agnostic rule */
3006 if (!family && !length(sip[0]) && !length(sip[1]) && !length(dip[0]) && !length(dip[1]) && !length(rip[0]) && !length(rip[1])) {
3007 add_rule(0, proto, [], [], null, sport, dport, rport, snat);
3010 /* we need to emit one or two AF specific rules */
3012 if (family == 0 || family == 4)
3013 for (let saddr in subnets_group_by_masking(sip[0]))
3014 for (let daddr in subnets_group_by_masking(dip[0]))
3015 add_rule(4, proto, saddr, daddr, rip[0], sport, dport, rport, snat);
3017 if (family == 0 || family == 6)
3018 for (let saddr in subnets_group_by_masking(sip[1]))
3019 for (let daddr in subnets_group_by_masking(dip[1]))
3020 add_rule(6, proto, saddr, daddr, rip[1], sport, dport, rport, snat);
3025 parse_ipset: function(data) {
3026 let ipset = this.parse_options(data, {
3027 enabled: [ "bool", "1" ],
3028 reload_set: [ "bool" ],
3029 counters: [ "bool" ],
3030 comment: [ "bool" ],
3032 name: [ "string", null, REQUIRED ],
3033 family: [ "family", "4" ],
3035 storage: [ "string", null, UNSUPPORTED ],
3036 match: [ "ipsettype", null, PARSE_LIST ],
3038 iprange: [ "string", null, UNSUPPORTED ],
3039 portrange: [ "string", null, UNSUPPORTED ],
3041 netmask: [ "int", null, UNSUPPORTED ],
3043 hashsize: [ "int", null, UNSUPPORTED ],
3044 timeout: [ "int", "-1" ],
3046 external: [ "string", null, UNSUPPORTED ],
3048 entry: [ "string", null, PARSE_LIST ],
3049 loadfile: [ "string" ]
3052 if (ipset === false) {
3053 this.warn_section(data, "skipped due to invalid options");
3056 else if (!ipset.enabled) {
3057 this.warn_section(data, "is disabled, ignoring section");
3061 if (ipset.family == 0) {
3062 this.warn_section(data, "must not specify family 'any'");
3065 else if (!length(ipset.match)) {
3066 this.warn_section(data, "has no datatypes assigned");
3070 let dirs = map(ipset.match, m => m[0]),
3071 types = map(ipset.match, m => m[1]),
3074 if ("set" in types) {
3075 this.warn_section(data, "match type 'set' is not supported");
3079 if ("net" in types) {
3080 if (this.kernel < 0x05060000) {
3081 this.warn_section(data, "match type 'net' requires kernel 5.6 or later");
3093 types: map(types, (t) => {
3097 return (ipset.family == 4) ? 'ipv4_addr' : 'ipv6_addr';
3100 return 'ether_addr';
3103 return 'inet_service';
3111 s.entries = filter(map(ipset.entry, (e) => {
3112 let v = this.parse_ipsetentry(e, s);
3115 this.warn_section(data, `ignoring invalid ipset entry '${e}'`);
3118 }), (e) => (e != null));
3120 push(this.state.ipsets ||= [], s);