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) {
134 let m = [], n = false;
141 if (bits > (v6 ? 128 : 32))
144 for (let i = 0; i < (v6 ? 16 : 4); i++) {
145 let b = (bits < 8) ? bits : 8;
146 m[i] = (n ? ~(0xff << (8 - b)) : (0xff << (8 - b))) & 0xff;
153 function to_bits(mask) {
154 let a = iptoarr(mask);
161 for (let i = 0, z = false; i < length(a); i++) {
164 while (!z && (a[i] & 0x80)) {
165 a[i] = (a[i] << 1) & 0xff;
176 function apply_mask(addr, mask) {
177 let a = iptoarr(addr);
182 if (type(mask) == "int") {
183 for (let i = 0; i < length(a); i++) {
184 let b = (mask < 8) ? mask : 8;
185 a[i] &= (0xff << (8 - b)) & 0xff;
190 let m = iptoarr(mask);
192 if (!m || length(a) != length(m))
195 for (let i = 0; i < length(a); i++)
202 function to_array(x) {
203 if (type(x) == "array")
209 if (type(x) == "object")
214 return (x == "") ? [] : split(x, /[ \t]+/);
217 function filter_pos(x) {
218 let rv = filter(x, e => !e.invert);
219 return length(rv) ? rv : null;
222 function filter_neg(x) {
223 let rv = filter(x, e => e.invert);
224 return length(rv) ? rv : null;
227 function null_if_empty(x) {
228 return length(x) ? x : null;
231 function subnets_split_af(x) {
234 for (let ag in to_array(x)) {
235 for (let a in filter(ag.addrs, a => (a.family == 4)))
236 push(rv[0] ||= [], { ...a, invert: ag.invert });
238 for (let a in filter(ag.addrs, a => (a.family == 6)))
239 push(rv[1] ||= [], { ...a, invert: ag.invert });
243 rv.family = (!rv[0] ^ !rv[1]) ? (rv[0] ? 4 : 6) : 0;
248 function subnets_group_by_masking(x) {
249 let groups = [], plain = [], nc = [], invert_plain = [], invert_masked = [];
251 for (let a in to_array(x)) {
252 if (a.bits == -1 && !a.invert)
256 else if (a.bits == -1)
257 push(invert_masked, a);
259 push(invert_plain, a);
263 push(groups, [ null, null_if_empty(invert_plain), [ a, ...invert_masked ] ]);
268 null_if_empty(invert_plain),
269 null_if_empty(invert_masked)
272 else if (!length(groups)) {
275 null_if_empty(invert_plain),
276 null_if_empty(invert_masked)
283 function ensure_tcpudp(x) {
284 if (length(filter(x, p => (p.name == "tcp" || p.name == "udp"))))
287 let rest = filter(x, p => !p.any),
288 any = filter(x, p => p.any);
290 if (length(any) && !length(rest)) {
292 push(x, { name: "tcp" }, { name: "udp" });
299 let is_family = (x, v) => (!x.family || x.family == v);
300 let family_is_ipv4 = (x) => (!x.family || x.family == 4);
301 let family_is_ipv6 = (x) => (!x.family || x.family == 6);
303 function infer_family(f, objects) {
307 for (let i = 0; i < length(objects); i += 2) {
308 let objs = to_array(objects[i]),
309 desc = objects[i + 1];
311 for (let obj in objs) {
312 if (!obj || !obj.family || obj.family == res)
322 ? `references IPv${obj.family} only ${desc} but is restricted to IPv${res} by ${by}`
323 : `is restricted to IPv${res} but referenced ${desc} is IPv${obj.family} only`;
330 function map_setmatch(set, match, proto) {
331 if (!set || (('inet_service' in set.types) && proto != 'tcp' && proto != 'udp'))
336 for (let i, t in set.types) {
337 let dir = ((match.dir?.[i] || set.directions[i] || 'src') == 'src' ? 's' : 'd');
341 fields[i] = `ip ${dir}addr`;
345 fields[i] = `ip6 ${dir}addr`;
352 fields[i] = 'ether saddr';
356 fields[i] = `${proto} ${dir}port`;
364 function resolve_lower_devices(devstatus, devname, require_hwoffload) {
365 let dir = fs.opendir(`/sys/class/net/${devname}`);
369 switch (devstatus[devname]?.devtype) {
374 while ((e = dir.read()) != null)
375 if (index(e, "lower_") === 0)
376 push(devs, ...resolve_lower_devices(devstatus, substr(e, 6), require_hwoffload));
381 if (!require_hwoffload || devstatus[devname]?.["hw-tc-offload"])
393 function nft_json_command(...args) {
394 let cmd = [ "/usr/sbin/nft", "--terse", "--json", ...args ];
395 let nft = fs.popen(join(" ", cmd), "r");
400 info = filter(json(nft.read("all"))?.nftables,
401 item => (type(item) == "object" && !item.metainfo));
404 warn(`Unable to parse nftables JSON output: ${e}\n`);
410 warn(`Unable to popen() ${cmd}: ${fs.error()}\n`);
416 function nft_try_hw_offload(devices) {
418 add table inet fw4-hw-offload-test;
419 add flowtable inet fw4-hw-offload-test ft {
420 hook ingress priority 0;
421 devices = { "${join('", "', devices)}" };
426 let rc = system(`/usr/sbin/nft -c '${replace(nft_test, "'", "'\\''")}' 2>/dev/null`);
433 read_kernel_version: function() {
434 let fd = fs.open("/proc/version", "r"),
438 let m = match(fd.read("line"), /^Linux version ([0-9]+)\.([0-9]+)\.([0-9]+)/);
440 v = m ? (+m[1] << 24) | (+m[2] << 16) | (+m[3] << 8) : 0;
447 resolve_offload_devices: function() {
448 if (!this.default_option("flow_offloading"))
451 let devstatus = null;
453 let bus = ubus.connect();
456 devstatus = bus.call("network.device", "status") || {};
460 if (this.default_option("flow_offloading_hw")) {
461 for (let zone in this.zones())
462 for (let device in zone.related_physdevs)
463 push(devices, ...resolve_lower_devices(devstatus, device, true));
465 if (length(devices)) {
466 devices = sort(uniq(devices));
468 if (nft_try_hw_offload(devices))
471 this.warn('Hardware flow offloading unavailable, falling back to software offloading');
472 this.state.defaults.flow_offloading_hw = false;
478 for (let zone in this.zones())
479 for (let device in zone.related_physdevs)
480 push(devices, ...resolve_lower_devices(devstatus, device, false));
482 return sort(uniq(devices));
485 check_set_types: function() {
488 for (let item in nft_json_command("list", "sets", "inet"))
489 if (item.set?.table == "fw4")
490 sets[item.set.name] = (type(item.set.type) == "array") ? item.set.type : [ item.set.type ];
495 check_flowtable: function() {
496 for (let item in nft_json_command("list", "flowtables", "inet"))
497 if (item.flowtable?.table == "fw4" && item.flowtable?.name == "ft")
503 read_state: function() {
504 let fd = fs.open(STATEFILE, "r");
509 state = json(fd.read("all"));
512 warn(`Unable to parse '${STATEFILE}': ${e}\n`);
521 read_ubus: function() {
524 rules = [], networks = {},
525 bus = ubus.connect();
528 ifaces = bus.call("network.interface", "dump");
529 services = bus.call("service", "get_data", { "type": "firewall" });
534 warn(`Unable to connect to ubus: ${ubus.error()}\n`);
539 // Gather logical network information from ubus
542 if (type(ifaces?.interface) == "array") {
543 for (let ifc in ifaces.interface) {
546 device: ifc.l3_device,
551 if (type(ifc["ipv4-address"]) == "array") {
552 for (let addr in ifc["ipv4-address"]) {
553 push(net.ipaddrs ||= [], {
556 mask: to_mask(addr.mask, false),
562 if (type(ifc["ipv6-address"]) == "array") {
563 for (let addr in ifc["ipv6-address"]) {
564 push(net.ipaddrs ||= [], {
567 mask: to_mask(addr.mask, true),
573 if (type(ifc["ipv6-prefix-assignment"]) == "array") {
574 for (let addr in ifc["ipv6-prefix-assignment"]) {
575 if (addr["local-address"]) {
576 push(net.ipaddrs ||= [], {
578 addr: addr["local-address"].address,
579 mask: to_mask(addr["local-address"].mask, true),
580 bits: addr["local-address"].mask
586 if (type(ifc.data?.firewall) == "array") {
589 for (let rulespec in ifc.data.firewall) {
593 name: (rulespec.type != 'ipset') ? `ubus:${ifc.interface}[${ifc.proto}] ${rulespec.type || 'rule'} ${n}` : rulespec.name,
594 device: rulespec.device || ifc.l3_device
601 networks[ifc.interface] = net;
607 // Gather firewall rule definitions from ubus services
610 if (type(services) == "object") {
611 for (let svcname, service in services) {
612 if (type(service?.firewall) == "array") {
615 for (let rulespec in services[svcname].firewall) {
619 name: (rulespec.type != 'ipset') ? `ubus:${svcname} ${rulespec.type || 'rule'} ${n}` : rulespec.name
626 for (let svcinst, instance in service) {
627 if (type(instance?.firewall) == "array") {
630 for (let rulespec in instance.firewall) {
634 name: (rulespec.type != 'ipset') ? `ubus:${svcname}[${svcinst}] ${rulespec.type || 'rule'} ${n}` : rulespec.name
650 load: function(use_statefile) {
653 this.state = use_statefile ? this.read_state() : null;
655 this.cursor = uci.cursor();
656 this.cursor.load("firewall");
657 this.cursor.load("/usr/share/firewall4/helpers");
660 this.state = this.read_ubus();
662 this.kernel = this.read_kernel_version();
666 // Read helper mapping
669 this.cursor.foreach("helpers", "helper", h => self.parse_helper(h));
673 // Read default policies
676 this.cursor.foreach("firewall", "defaults", d => self.parse_defaults(d));
678 if (!this.state.defaults)
679 this.parse_defaults({});
683 // Build list of ipsets
686 if (!this.state.ipsets) {
687 map(filter(this.state.ubus_rules, n => (n.type == "ipset")), s => self.parse_ipset(s));
688 this.cursor.foreach("firewall", "ipset", s => self.parse_ipset(s));
693 // Build list of logical zones
696 if (!this.state.zones)
697 this.cursor.foreach("firewall", "zone", z => self.parse_zone(z));
701 // Build list of rules
704 map(filter(this.state.ubus_rules, r => (r.type == "rule")), r => self.parse_rule(r));
705 this.cursor.foreach("firewall", "rule", r => self.parse_rule(r));
709 // Build list of forwardings
712 this.cursor.foreach("firewall", "forwarding", f => self.parse_forwarding(f));
716 // Build list of redirects
719 map(filter(this.state.ubus_rules, r => (r.type == "redirect")), r => self.parse_redirect(r));
720 this.cursor.foreach("firewall", "redirect", r => self.parse_redirect(r));
724 // Build list of snats
727 map(filter(this.state.ubus_rules, n => (n.type == "nat")), n => self.parse_nat(n));
728 this.cursor.foreach("firewall", "nat", n => self.parse_nat(n));
732 let fd = fs.open(STATEFILE, "w");
736 zones: this.state.zones,
737 ipsets: this.state.ipsets,
738 networks: this.state.networks,
739 ubus_rules: this.state.ubus_rules
745 warn(`Unable to write '${STATEFILE}': ${fs.error()}\n`);
750 warn: function(fmt, ...args) {
754 let msg = sprintf(fmt, ...args);
757 warn(`\033[33m${msg}\033[m\n`);
759 warn(`[!] ${msg}\n`);
762 get: function(sid, opt) {
763 return this.cursor.get("firewall", sid, opt);
766 get_all: function(sid) {
767 return this.cursor.get_all("firewall", sid);
770 parse_options: function(s, spec) {
773 for (let key, val in spec) {
774 let datatype = `parse_${val[0]}`,
777 parsefn = (flags & PARSE_LIST) ? "parse_list" : "parse_opt";
779 let res = this[parsefn](s, key, datatype, defval, flags);
784 if (type(res) == "object" && res.invert && (flags & NO_INVERT)) {
785 this.warn_section(s, `option '${key}' must not be negated`);
790 if (flags & DEPRECATED)
791 this.warn_section(s, `option '${key}' is deprecated by fw4`);
792 else if (flags & UNSUPPORTED)
793 this.warn_section(s, `option '${key}' is not supported by fw4`);
800 if (index(opt, '.') != 0 && opt != 'type' && !exists(spec, opt)) {
801 this.warn_section(s, `specifies unknown option '${opt}'`);
808 parse_subnet: function(subnet) {
809 let parts = split(subnet, "/");
812 switch (length(parts)) {
814 a = iptoarr(parts[0]);
815 m = iptoarr(parts[1]);
821 if (length(a) != length(m))
824 b = to_bits(parts[1]);
826 /* allow non-contiguous masks such as `::ffff:ffff:ffff:ffff` */
839 if (type(b) != "int")
842 m = to_mask(b, length(a) == 16);
847 family: (length(a) == 16) ? 6 : 4,
854 parts = split(parts[0], "-");
856 switch (length(parts)) {
858 a = iptoarr(parts[0]);
859 b = iptoarr(parts[1]);
861 if (a && b && length(a) == length(b)) {
863 family: (length(a) == 16) ? 6 : 4,
873 a = iptoarr(parts[0]);
877 family: (length(a) == 16) ? 6 : 4,
879 mask: to_mask(length(a) * 8, length(a) == 16),
884 n = this.state.networks[parts[0]];
887 return [ ...(n.ipaddrs || []) ];
894 parse_enum: function(val, choices) {
895 if (type(val) == "string") {
898 for (let i = 0; i < length(choices); i++)
899 if (lc(substr(choices[i], 0, length(val))) == val)
906 section_id: function(sid) {
907 let s = this.get_all(sid);
912 if (s[".anonymous"]) {
915 this.cursor.foreach("firewall", s[".type"], function(ss) {
916 if (ss[".name"] == s[".name"])
922 return `@${s['.type']}[${c}]`;
928 warn_section: function(s, msg) {
931 this.warn("Section %s (%s) %s", this.section_id(s[".name"]), s.name, msg);
933 this.warn("Section %s %s", this.section_id(s[".name"]), msg);
937 this.warn("ubus %s (%s) %s", s.type || "rule", s.name, msg);
939 this.warn("ubus %s %s", s.type || "rule", msg);
943 parse_policy: function(val) {
944 return this.parse_enum(val, [
951 parse_bool: function(val) {
952 if (val == "1" || val == "on" || val == "true" || val == "yes")
954 else if (val == "0" || val == "off" || val == "false" || val == "no")
960 parse_family: function(val) {
961 if (val == 'any' || val == 'all' || val == '*')
963 else if (val == 'inet' || index(val, '4') > -1)
965 else if (index(val, '6') > -1)
971 parse_zone_ref: function(val) {
976 return { any: true };
978 for (let zone in this.state.zones) {
979 if (zone.name == val) {
990 parse_device: function(val) {
991 let rv = this.parse_invert(val);
1004 parse_direction: function(val) {
1005 if (val == 'in' || val == 'ingress')
1007 else if (val == 'out' || val == 'egress')
1013 parse_setmatch: function(val) {
1014 let rv = this.parse_invert(val);
1019 rv.val = trim(replace(rv.val, /^[^ \t]+/, function(m) {
1024 let dir = split(rv.val, /[ \t,]/);
1026 for (let i = 0; i < 3 && i < length(dir); i++) {
1027 if (dir[i] == "dst" || dir[i] == "dest")
1028 (rv.dir ||= [])[i] = "dst";
1029 else if (dir[i] == "src")
1030 (rv.dir ||= [])[i] = "src";
1033 return length(rv.name) ? rv : null;
1036 parse_cthelper: function(val) {
1037 let rv = this.parse_invert(val);
1042 let helper = filter(this.state.helpers, h => (h.name == rv.val))[0];
1044 return helper ? { ...rv, ...helper } : null;
1047 parse_protocol: function(val) {
1048 let p = this.parse_invert(val);
1070 p.name = 'ipv6-icmp';
1075 { invert: p.invert, name: 'tcp' },
1076 { invert: p.invert, name: 'udp' }
1091 return (p.any || length(p.name)) ? p : null;
1094 parse_mac: function(val) {
1095 let mac = this.parse_invert(val);
1096 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})$/i) : null;
1101 mac.mac = sprintf('%02x:%02x:%02x:%02x:%02x:%02x',
1102 hex(m[1]), hex(m[2]), hex(m[3]),
1103 hex(m[4]), hex(m[5]), hex(m[6]));
1108 parse_port: function(val) {
1109 let port = this.parse_invert(val);
1110 let m = port ? match(port.val, /^([0-9]{1,5})([-:]([0-9]{1,5}))?$/i) : null;
1116 let min_port = +m[1];
1117 let max_port = +m[3];
1119 if (min_port > max_port ||
1120 min_port < 0 || max_port < 0 ||
1121 min_port > 65535 || max_port > 65535)
1124 port.min = min_port;
1125 port.max = max_port;
1130 if (pn != pn || pn < 0 || pn > 65535)
1140 parse_network: function(val) {
1141 let rv = this.parse_invert(val);
1146 let nets = this.parse_subnet(rv.val);
1152 rv.addrs = [ ...nets ];
1157 parse_icmptype: function(val) {
1160 if (exists(ipv4_icmptypes, val)) {
1163 rv.type = ipv4_icmptypes[val][0];
1164 rv.code_min = ipv4_icmptypes[val][1];
1165 rv.code_max = ipv4_icmptypes[val][2];
1168 if (exists(ipv6_icmptypes, val)) {
1169 rv.family = rv.family ? 0 : 6;
1171 rv.type6 = ipv6_icmptypes[val][0];
1172 rv.code6_min = ipv6_icmptypes[val][1];
1173 rv.code6_max = ipv6_icmptypes[val][2];
1176 if (!exists(rv, "family")) {
1177 let m = match(val, /^([0-9]+)(\/([0-9]+))?$/);
1184 rv.code_min = +m[3];
1185 rv.code_max = rv.code_min;
1193 if (rv.type > 0xFF || rv.code_min > 0xFF || rv.code_max > 0xFF)
1199 rv.code6_min = rv.code_min;
1200 rv.code6_max = rv.code_max;
1206 parse_invert: function(val) {
1210 let rv = { invert: false };
1212 rv.val = trim(replace(val, /^[ \t]*!/, () => (rv.invert = true, '')));
1214 return length(rv.val) ? rv : null;
1217 parse_limit: function(val) {
1218 let rv = this.parse_invert(val);
1219 let m = rv ? match(rv.val, /^([0-9]+)(\/([a-z]+))?$/) : null;
1225 let u = m[3] ? this.parse_enum(m[3], [ "second", "minute", "hour", "day" ]) : "second";
1236 parse_int: function(val) {
1239 return (n == n) ? n : null;
1242 parse_date: function(val) {
1243 let m = match(val, /^([0-9-]+)T([0-9:]+)$/);
1244 let d = m ? match(m[1], /^([0-9]{1,4})(-([0-9]{1,2})(-([0-9]{1,2}))?)?$/) : null;
1245 let t = this.parse_time(m[2]);
1250 if (d == null || d[1] < 1970 || d[1] > 2038 || d[3] < 1 || d[3] > 12 || d[5] < 1 || d[5] > 31)
1260 hour: t ? +t[1] : 0,
1266 parse_time: function(val) {
1267 let t = match(val, /^([0-9]{1,2})(:([0-9]{1,2})(:([0-9]{1,2}))?)?$/);
1269 if (t == null || t[1] > 23 || t[3] > 59 || t[5] > 59)
1279 parse_weekdays: function(val) {
1280 let rv = this.parse_invert(val);
1285 for (let day in to_array(rv.val)) {
1286 day = this.parse_enum(day, [
1299 (rv.days ||= {})[day] = true;
1302 rv.days = keys(rv.days);
1304 return rv.days ? rv : null;
1307 parse_monthdays: function(val) {
1308 let rv = this.parse_invert(val);
1313 for (let day in to_array(rv.val)) {
1316 if (day < 1 || day > 31)
1319 (rv.days ||= [])[day] = true;
1322 return rv.days ? rv : null;
1325 parse_mark: function(val) {
1326 let rv = this.parse_invert(val);
1327 let m = rv ? match(rv.val, /^(0?x?[0-9a-f]+)(\/(0?x?[0-9a-f]+))?$/i) : null;
1334 if (n != n || n > 0xFFFFFFFF)
1338 rv.mask = 0xFFFFFFFF;
1343 if (n != n || n > 0xFFFFFFFF)
1352 parse_dscp: function(val) {
1353 let rv = this.parse_invert(val);
1358 rv.val = uc(rv.val);
1360 if (exists(dscp_classes, rv.val)) {
1361 rv.dscp = dscp_classes[rv.val];
1366 if (n != n || n < 0 || n > 0x3F)
1375 parse_target: function(val) {
1376 return this.parse_enum(val, [
1393 parse_reject_code: function(val) {
1394 return this.parse_enum(val, [
1403 parse_reflection_source: function(val) {
1404 return this.parse_enum(val, [
1410 parse_ipsettype: function(val) {
1411 let m = match(val, /^(src|dst|dest)_(.+)$/);
1412 let t = this.parse_enum(m ? m[2] : val, [
1420 return t ? [ (!m || m[1] == 'src') ? 'src' : 'dst', t ] : null;
1423 parse_ipsetentry: function(val, set) {
1424 let values = split(val, /[ \t]+/);
1426 if (length(values) != length(set.types))
1432 for (let i, t in set.types) {
1435 ip = filter(this.parse_subnet(values[i]), a => (a.family == 4));
1437 switch (length(ip) ?? 0) {
1438 case 0: return null;
1440 default: this.warn("Set entry '%s' resolves to multiple addresses, using first one", values[i]);
1443 rv[i] = ("net" in set.fw4types) ? `${ip[0].addr}/${ip[0].bits}` : ip[0].addr;
1447 ip = filter(this.parse_subnet(values[i]), a => (a.family == 6));
1449 switch(length(ip)) {
1450 case 0: return null;
1452 case 2: this.warn("Set entry '%s' resolves to multiple addresses, using first one", values[i]);
1455 rv[i] = ("net" in set.fw4types) ? `${ip[0].addr}/${ip[0].bits}` : ip[0].addr;
1460 mac = this.parse_mac(values[i]);
1462 if (!mac || mac.invert)
1468 case 'inet_service':
1469 port = this.parse_port(values[i]);
1471 if (!port || port.invert || port.min != port.max)
1482 return length(rv) ? rv : null;
1485 parse_string: function(val) {
1489 parse_opt: function(s, opt, fn, defval, flags) {
1493 if (flags & REQUIRED) {
1494 this.warn_section(s, `option '${opt}' is mandatory but not set`);
1501 if (type(val) == "array") {
1502 this.warn_section(s, `option '${opt}' must not be a list`);
1505 else if (val == null) {
1509 let res = this[fn](val);
1512 this.warn_section(s, `option '${opt}' specifies invalid value '${val}'`);
1519 parse_list: function(s, opt, fn, defval, flags) {
1524 if (flags & REQUIRED) {
1525 this.warn_section(s, `option '${opt}' is mandatory but not set`);
1532 for (val in to_array(val)) {
1533 let res = this[fn](val);
1536 this.warn_section(s, `option '${opt}' specifies invalid value '${val}'`);
1540 if (flags & FLATTEN_LIST)
1541 push(rv, ...to_array(res));
1546 return length(rv) ? rv : null;
1549 quote: function(s, force) {
1550 if (force === true || !match(s, /^([0-9A-Fa-f:.\/-]+)( \. [0-9A-Fa-f:.\/-]+)*$/))
1551 return `"${replace(s + "", /(["\\])/g, '\\$1')}"`;
1558 return `${a.addr}-${a.addr2}`;
1560 if ((a.family == 4 && a.bits == 32) ||
1561 (a.family == 6 && a.bits == 128))
1565 return `${apply_mask(a.addr, a.bits)}/${a.bits}`;
1567 return `${a.addr}/${a.mask}`;
1570 host: function(a, v6brackets) {
1572 ? `${a.addr}-${a.addr2}`
1573 : (a.family == 6 && v6brackets)
1574 ? `[${apply_mask(a.addr, a.bits)}]` : apply_mask(a.addr, a.bits);
1581 return `${p.min}-${p.max}`;
1584 set: function(v, force) {
1587 v = filter(to_array(v), item => !seen[item]++);
1589 if (force || length(v) != 1)
1590 return `{ ${join(', ', map(v, this.quote))} }`;
1592 return this.quote(v[0]);
1595 concat: function(v) {
1596 return join(' . ', to_array(v));
1599 ipproto: function(family) {
1609 nfproto: function(family, human_readable) {
1612 return human_readable ? "IPv4" : "ipv4";
1615 return human_readable ? "IPv6" : "ipv6";
1618 return human_readable ? "IPv4/IPv6" : null;
1622 l4proto: function(family, proto) {
1623 switch (proto.name) {
1625 switch (family ?? 0) {
1627 return this.set(['icmp', 'ipv6-icmp']);
1638 datetime: function(stamp) {
1639 return sprintf('"%04d-%02d-%02d %02d:%02d:%02d"',
1640 stamp.year, stamp.month, stamp.day,
1641 stamp.hour, stamp.min, stamp.sec);
1644 date: function(stamp) {
1645 return sprintf('"%04d-%02d-%02d"', stamp.year, stamp.month, stamp.day);
1648 time: function(stamp) {
1649 return sprintf('"%02d:%02d:%02d"', stamp.hour, stamp.min, stamp.sec);
1653 return sprintf('0x%x', n);
1656 is_loopback_dev: function(dev) {
1657 let fd = fs.open(`/sys/class/net/${dev}/flags`, "r");
1662 let flags = +fd.read("line");
1666 return !!(flags & 0x8);
1669 is_loopback_addr: function(addr) {
1670 return (index(addr, "127.") == 0 || addr == "::1" || addr == "::1/128");
1673 filter_loopback_devs: function(devs, invert) {
1674 return null_if_empty(filter(devs, d => (this.is_loopback_dev(d) == invert)));
1677 filter_loopback_addrs: function(addrs, invert) {
1678 return null_if_empty(filter(addrs, a => (this.is_loopback_addr(a) == invert)));
1682 input_policy: function(reject_as_drop) {
1683 return (!reject_as_drop || this.state.defaults.input != 'reject') ? this.state.defaults.input : 'drop';
1686 output_policy: function(reject_as_drop) {
1687 return (!reject_as_drop || this.state.defaults.output != 'reject') ? this.state.defaults.output : 'drop';
1690 forward_policy: function(reject_as_drop) {
1691 return (!reject_as_drop || this.state.defaults.forward != 'reject') ? this.state.defaults.forward : 'drop';
1694 default_option: function(flag) {
1695 return this.state.defaults[flag];
1698 helpers: function() {
1699 return this.state.helpers;
1703 return this.state.zones;
1706 rules: function(chain) {
1707 return filter(this.state.rules, r => (r.chain == chain));
1710 redirects: function(chain) {
1711 return filter(this.state.redirects, r => (r.chain == chain));
1714 ipsets: function() {
1715 return this.state.ipsets;
1718 parse_setfile: function(set, cb) {
1719 let fd = fs.open(set.loadfile, "r");
1722 warn(`Unable to load file '${set.loadfile}' for set '${set.name}': ${fs.error()}\n`);
1726 let line = null, count = 0;
1728 while ((line = fd.read("line")) !== "") {
1731 if (length(line) == 0 || ord(line) == 35)
1734 let v = this.parse_ipsetentry(line, set);
1737 this.warn(`Skipping invalid entry '${line}' in file '${set.loadfile}' for set '${set.name}'`);
1751 print_setentries: function(set) {
1753 let printer = (entry) => {
1755 print("\t\telements = {\n");
1759 print("\t\t\t", join(" . ", entry), ",\n");
1762 map(set.entries, printer);
1765 this.parse_setfile(set, printer);
1771 parse_helper: function(data) {
1772 let helper = this.parse_options(data, {
1773 name: [ "string", null, REQUIRED ],
1774 description: [ "string" ],
1775 module: [ "string" ],
1776 family: [ "family" ],
1777 proto: [ "protocol", null, PARSE_LIST | FLATTEN_LIST | NO_INVERT ],
1778 port: [ "port", null, NO_INVERT ]
1781 if (helper === false) {
1782 this.warn("Helper definition '%s' skipped due to invalid options", data.name || data['.name']);
1785 else if (helper.proto.any) {
1786 this.warn("Helper definition '%s' must not specify wildcard protocol", data.name || data['.name']);
1789 else if (length(helper.proto) > 1) {
1790 this.warn("Helper definition '%s' must not specify multiple protocols", data.name || data['.name']);
1794 helper.available = (fs.stat(`/sys/module/${helper.module}`)?.type == "directory");
1796 push(this.state.helpers ||= [], helper);
1799 parse_defaults: function(data) {
1800 if (this.state.defaults) {
1801 this.warn_section(data, ": ignoring duplicate defaults section");
1805 let defs = this.parse_options(data, {
1806 input: [ "policy", "drop" ],
1807 output: [ "policy", "drop" ],
1808 forward: [ "policy", "drop" ],
1810 drop_invalid: [ "bool" ],
1811 tcp_reject_code: [ "reject_code", "tcp-reset" ],
1812 any_reject_code: [ "reject_code", "port-unreachable" ],
1814 syn_flood: [ "bool" ],
1815 synflood_protect: [ "bool" ],
1816 synflood_rate: [ "limit", "25/second" ],
1817 synflood_burst: [ "int", "50" ],
1819 tcp_syncookies: [ "bool", "1" ],
1821 tcp_window_scaling: [ "bool", "1" ],
1823 accept_redirects: [ "bool" ],
1824 accept_source_route: [ "bool" ],
1826 auto_helper: [ "bool", "1" ],
1827 custom_chains: [ "bool", null, UNSUPPORTED ],
1828 disable_ipv6: [ "bool", null, UNSUPPORTED ],
1829 flow_offloading: [ "bool", "0" ],
1830 flow_offloading_hw: [ "bool", "0" ]
1833 if (defs.synflood_protect === null)
1834 defs.synflood_protect = defs.syn_flood;
1836 delete defs.syn_flood;
1838 this.state.defaults = defs;
1841 parse_zone: function(data) {
1842 let zone = this.parse_options(data, {
1843 enabled: [ "bool", "1" ],
1845 name: [ "string", null, REQUIRED ],
1846 family: [ "family" ],
1848 network: [ "device", null, PARSE_LIST ],
1849 device: [ "device", null, PARSE_LIST ],
1850 subnet: [ "network", null, PARSE_LIST ],
1852 input: [ "policy", this.state.defaults ? this.state.defaults.input : "drop" ],
1853 output: [ "policy", this.state.defaults ? this.state.defaults.output : "drop" ],
1854 forward: [ "policy", this.state.defaults ? this.state.defaults.forward : "drop" ],
1857 masq_allow_invalid: [ "bool" ],
1858 masq_src: [ "network", null, PARSE_LIST ],
1859 masq_dest: [ "network", null, PARSE_LIST ],
1863 extra: [ "string", null, UNSUPPORTED ],
1864 extra_src: [ "string", null, UNSUPPORTED ],
1865 extra_dest: [ "string", null, UNSUPPORTED ],
1867 mtu_fix: [ "bool" ],
1868 custom_chains: [ "bool", null, UNSUPPORTED ],
1871 log_limit: [ "limit", null, UNSUPPORTED ],
1873 auto_helper: [ "bool", "1" ],
1874 helper: [ "cthelper", null, PARSE_LIST ],
1876 counter: [ "bool", "1" ]
1879 if (zone === false) {
1880 this.warn_section(data, "skipped due to invalid options");
1883 else if (!zone.enabled) {
1884 this.warn_section(data, "is disabled, ignoring section");
1887 else if (zone.helper && !zone.helper.available) {
1888 this.warn_section(data, `uses unavailable ct helper '${zone.helper.name}', ignoring section`);
1892 if (zone.mtu_fix && this.kernel < 0x040a0000) {
1893 this.warn_section(data, "option 'mtu_fix' requires kernel 4.10 or later");
1897 if (this.state.defaults?.auto_helper === false)
1898 zone.auto_helper = false;
1900 let match_devices = [];
1901 let related_physdevs = [];
1902 let related_subnets = [];
1903 let related_ubus_networks = [];
1904 let match_subnets, masq_src_subnets, masq_dest_subnets;
1906 for (let name, net in this.state.networks) {
1907 if (net.zone === zone.name)
1908 push(related_ubus_networks, { invert: false, device: name });
1911 zone.network = [ ...to_array(zone.network), ...related_ubus_networks ];
1913 for (let e in zone.network) {
1914 if (exists(this.state.networks, e.device)) {
1915 let net = this.state.networks[e.device];
1918 push(match_devices, {
1924 if (net.physdev && !e.invert)
1925 push(related_physdevs, net.physdev);
1927 push(related_subnets, ...(net.ipaddrs || []));
1931 push(match_devices, ...to_array(zone.device));
1933 match_subnets = subnets_split_af(zone.subnet);
1934 masq_src_subnets = subnets_split_af(zone.masq_src);
1935 masq_dest_subnets = subnets_split_af(zone.masq_dest);
1937 push(related_subnets, ...(match_subnets[0] || []), ...(match_subnets[1] || []));
1939 let match_rules = [];
1941 let add_rule = (family, devices, subnets, zone) => {
1946 r.devices_pos = null_if_empty(devices[0]);
1947 r.devices_neg = null_if_empty(devices[1]);
1948 r.devices_neg_wildcard = null_if_empty(devices[2]);
1950 r.subnets_pos = map(subnets[0], this.cidr);
1951 r.subnets_neg = map(subnets[1], this.cidr);
1952 r.subnets_masked = subnets[2];
1954 push(match_rules, r);
1957 let family = infer_family(zone.family, [
1958 zone.helper, "ct helper",
1959 match_subnets, "subnet list"
1962 if (type(family) == "string") {
1963 this.warn_section(data, `${family}, skipping`);
1967 // group non-inverted device matches into wildcard and non-wildcard ones
1968 let devices = [], plain_devices = [], plain_invert_devices = [], wildcard_invert_devices = [];
1970 for (let device in match_devices) {
1971 let m = match(device.device, /^([^+]*)(\+)?$/);
1974 this.warn_section(data, `skipping invalid wildcard pattern '${device.device}'`);
1978 // filter `+` (match any device) since nftables does not support
1979 // wildcard only matches
1980 if (!device.invert && m[0] == '+')
1983 // replace inverted `+` (match no device) with invalid pattern
1984 if (device.invert && m[0] == '+') {
1985 device.device = '/never/';
1986 device.invert = false;
1989 // replace "name+" matches with "name*"
1990 else if (m[2] == '+')
1991 device.device = m[1] + '*';
1993 device.wildcard = !!m[2];
1995 if (!device.invert && device.wildcard)
1996 push(devices, [ [ device.device ], plain_invert_devices, wildcard_invert_devices ]);
1997 else if (!device.invert)
1998 push(plain_devices, device.device);
1999 else if (device.wildcard)
2000 push(wildcard_invert_devices, device.device);
2002 push(plain_invert_devices, device.device);
2005 if (length(plain_devices))
2008 plain_invert_devices,
2009 wildcard_invert_devices
2011 else if (!length(devices))
2014 plain_invert_devices,
2015 wildcard_invert_devices
2018 // emit zone jump rules for each device group
2019 if (length(match_devices) || length(match_subnets[0]) || length(match_subnets[1])) {
2020 for (let devgroup in devices) {
2021 // check if there's no AF specific bits, in this case we can do AF agnostic matching
2022 if (!family && !length(match_subnets[0]) && !length(match_subnets[1])) {
2023 add_rule(0, devgroup, [], zone);
2026 // we need to emit one or two AF specific rules
2028 if (!family || family == 4)
2029 for (let subnets in subnets_group_by_masking(match_subnets[0]))
2030 add_rule(4, devgroup, subnets, zone);
2032 if (!family || family == 6)
2033 for (let subnets in subnets_group_by_masking(match_subnets[1]))
2034 add_rule(6, devgroup, subnets, zone);
2039 zone.family = family;
2041 zone.match_rules = match_rules;
2043 zone.masq4_src_subnets = subnets_group_by_masking(masq_src_subnets[0]);
2044 zone.masq4_dest_subnets = subnets_group_by_masking(masq_dest_subnets[0]);
2046 zone.masq6_src_subnets = subnets_group_by_masking(masq_src_subnets[1]);
2047 zone.masq6_dest_subnets = subnets_group_by_masking(masq_dest_subnets[1]);
2050 zone.sflags[zone.input] = true;
2053 zone.dflags[zone.output] = true;
2054 zone.dflags[zone.forward] = true;
2056 zone.match_devices = map(filter(match_devices, d => !d.invert), d => d.device);
2057 zone.match_subnets = map(filter(related_subnets, s => !s.invert && s.bits != -1), this.cidr);
2059 zone.related_subnets = related_subnets;
2060 zone.related_physdevs = related_physdevs;
2062 if (zone.masq || zone.masq6)
2063 zone.dflags.snat = true;
2065 if ((zone.auto_helper && !(zone.masq || zone.masq6)) || length(zone.helper)) {
2066 zone.dflags.helper = true;
2068 for (let helper in (length(zone.helper) ? zone.helper : this.state.helpers)) {
2069 if (!helper.available)
2072 for (let proto in helper.proto) {
2073 push(this.state.rules ||= [], {
2074 chain: `helper_${zone.name}`,
2075 family: helper.family,
2076 name: helper.description || helper.name,
2079 dports_pos: [ this.port(helper.port) ],
2087 push(this.state.zones ||= [], zone);
2090 parse_forwarding: function(data) {
2091 let fwd = this.parse_options(data, {
2092 enabled: [ "bool", "1" ],
2095 family: [ "family" ],
2097 src: [ "zone_ref", null, REQUIRED ],
2098 dest: [ "zone_ref", null, REQUIRED ]
2101 if (fwd === false) {
2102 this.warn_section(data, "skipped due to invalid options");
2105 else if (!fwd.enabled) {
2106 this.warn_section(data, "is disabled, ignoring section");
2110 let add_rule = (family, fwd) => {
2115 proto: { any: true }
2118 f.name ||= `Accept ${fwd.src.any ? "any" : fwd.src.zone.name} to ${fwd.dest.any ? "any" : fwd.dest.zone.name} ${family ? `${this.nfproto(family, true)} ` : ''}forwarding`;
2119 f.chain = fwd.src.any ? "forward" : `forward_${fwd.src.zone.name}`;
2122 f.target = "accept";
2124 f.jump_chain = `accept_to_${fwd.dest.zone.name}`;
2126 push(this.state.rules ||= [], f);
2130 /* inherit family restrictions from related zones */
2131 let family = infer_family(fwd.family, [
2132 fwd.src?.zone, "source zone",
2133 fwd.dest?.zone, "destination zone"
2136 if (type(family) == "string") {
2137 this.warn_section(data, `${family}, skipping`);
2141 add_rule(family, fwd);
2144 fwd.dest.zone.dflags.accept = true;
2147 parse_rule: function(data) {
2148 let rule = this.parse_options(data, {
2149 enabled: [ "bool", "1" ],
2151 name: [ "string", this.section_id(data[".name"]) ],
2152 _name: [ "string", null, DEPRECATED ],
2153 family: [ "family" ],
2155 src: [ "zone_ref" ],
2156 dest: [ "zone_ref" ],
2158 device: [ "device", null, NO_INVERT ],
2159 direction: [ "direction" ],
2161 ipset: [ "setmatch" ],
2162 helper: [ "cthelper" ],
2163 set_helper: [ "cthelper", null, NO_INVERT ],
2165 proto: [ "protocol", "tcpudp", PARSE_LIST | FLATTEN_LIST ],
2167 src_ip: [ "network", null, PARSE_LIST ],
2168 src_mac: [ "mac", null, PARSE_LIST ],
2169 src_port: [ "port", null, PARSE_LIST ],
2171 dest_ip: [ "network", null, PARSE_LIST ],
2172 dest_port: [ "port", null, PARSE_LIST ],
2174 icmp_type: [ "icmptype", null, PARSE_LIST ],
2175 extra: [ "string", null, UNSUPPORTED ],
2178 limit_burst: [ "int" ],
2180 utc_time: [ "bool" ],
2181 start_date: [ "date" ],
2182 stop_date: [ "date" ],
2183 start_time: [ "time" ],
2184 stop_time: [ "time" ],
2185 weekdays: [ "weekdays" ],
2186 monthdays: [ "monthdays", null, UNSUPPORTED ],
2189 set_mark: [ "mark", null, NO_INVERT ],
2190 set_xmark: [ "mark", null, NO_INVERT ],
2193 set_dscp: [ "dscp", null, NO_INVERT ],
2195 counter: [ "bool", "1" ],
2197 target: [ "target" ]
2200 if (rule === false) {
2201 this.warn_section(data, "skipped due to invalid options");
2204 else if (!rule.enabled) {
2205 this.warn_section(data, "is disabled, ignoring section");
2209 if (rule.target in ["helper", "notrack"] && (!rule.src || !rule.src.zone)) {
2210 this.warn_section(data, `must specify a source zone for target '${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);