-{%
-
let fs = require("fs");
let uci = require("uci");
let ubus = require("ubus");
}
function subnets_split_af(x) {
- let rv = [];
+ let rv = {};
for (let ag in to_array(x)) {
for (let a in filter(ag.addrs, a => (a.family == 4))) {
}
}
+ if (rv[0] || rv[1])
+ rv.family = (!rv[0] ^ !rv[1]) ? (rv[0] ? 4 : 6) : 0;
+
return rv;
}
if (!obj || !obj.family || obj.family == res)
continue;
- if (res == 0) {
+ if (!res) {
res = obj.family;
by = obj.desc;
continue;
return info || [];
}
+function nft_try_hw_offload(devices) {
+ let nft_test =
+ 'add table inet fw4-hw-offload-test; ' +
+ 'add flowtable inet fw4-hw-offload-test ft { ' +
+ 'hook ingress priority 0; ' +
+ 'devices = { "' + join('", "', devices) + '" }; ' +
+ 'flags offload; ' +
+ '}';
+
+ let rc = system(sprintf("/usr/sbin/nft -c '%s' 2>/dev/null", replace(nft_test, "'", "'\\''")));
+
+ return (rc == 0);
+}
+
return {
read_kernel_version: function() {
devstatus = bus.call("network.device", "status") || {};
bus.disconnect();
}
+
+ for (let zone in this.zones())
+ for (let device in zone.related_physdevs)
+ push(devices, ...resolve_lower_devices(devstatus, device));
+
+ devices = uniq(devices);
+
+ if (nft_try_hw_offload(devices))
+ return devices;
+
+ this.warn('Hardware flow offloading unavailable, falling back to software offloading');
+ this.state.defaults.flow_offloading_hw = false;
+
+ devices = [];
}
- for (let zone in fw4.zones())
+ for (let zone in this.zones())
for (let device in zone.match_devices)
- push(devices, ...resolve_lower_devices(devstatus, device));
+ push(devices, ...resolve_lower_devices(null, device));
return uniq(devices);
},
let net = {
up: ifc.up,
device: ifc.l3_device,
+ physdev: ifc.device,
zone: ifc.data?.zone
};
val = lc(val);
for (let i = 0; i < length(choices); i++)
- if (substr(choices[i], 0, length(val)) == val)
+ if (lc(substr(choices[i], 0, length(val))) == val)
return choices[i];
}
parse_direction: function(val) {
if (val == 'in' || val == 'ingress')
- return true;
- else if (val == 'out' || val == 'egress')
return false;
+ else if (val == 'out' || val == 'egress')
+ return true;
return null;
},
for (let day in to_array(rv.val)) {
day = this.parse_enum(day, [
- "monday",
- "tuesday",
- "wednesday",
- "thursday",
- "friday",
- "saturday",
- "sunday"
+ "Monday",
+ "Tuesday",
+ "Wednesday",
+ "Thursday",
+ "Friday",
+ "Saturday",
+ "Sunday"
]);
if (!day)
return sprintf("%s/%s", a.addr, a.mask);
},
- host: function(a) {
+ host: function(a, v6brackets) {
return a.range
? sprintf("%s-%s", a.addr, a.addr2)
- : apply_mask(a.addr, a.bits);
+ : sprintf((a.family == 6 && v6brackets) ? "[%s]" : "%s", apply_mask(a.addr, a.bits));
},
port: function(p) {
zone.auto_helper = false;
let match_devices = [];
+ let related_physdevs = [];
let related_subnets = [];
let related_ubus_networks = [];
let match_subnets, masq_src_subnets, masq_dest_subnets;
});
}
+ if (net.physdev && !e.invert)
+ push(related_physdevs, net.physdev);
+
push(related_subnets, ...(net.ipaddrs || []));
}
}
};
let family = infer_family(zone.family, [
- zone.helper, "ct helper"
+ zone.helper, "ct helper",
+ match_subnets, "subnet list"
]);
+ if (type(family) == "string") {
+ this.warn_section(data, family + ", skipping");
+ return;
+ }
+
// group non-inverted device matches into wildcard and non-wildcard ones
let devices = [], plain_devices = [], plain_invert_devices = [], wildcard_invert_devices = [];
}
}
+ zone.family = family;
+
zone.match_rules = match_rules;
zone.masq4_src_subnets = subnets_group_by_masking(masq_src_subnets[0]);
zone.match_subnets = map(filter(related_subnets, s => !s.invert && s.bits != -1), this.cidr);
zone.related_subnets = related_subnets;
+ zone.related_physdevs = related_physdevs;
if (zone.masq || zone.masq6)
zone.dflags.snat = true;
src: [ "zone_ref" ],
dest: [ "zone_ref" ],
- device: [ "device" ],
+ device: [ "device", null, NO_INVERT ],
direction: [ "direction" ],
ipset: [ "setmatch" ],
this.warn_section(data, "must specify option 'set_helper' for target 'helper'");
return;
}
+ else if (rule.device?.any) {
+ this.warn_section(data, "must not specify '*' as device");
+ return;
+ }
let ipset;
else
r.chain = "mangle_output";
- if (r.src?.zone)
+ if (r.src?.zone) {
r.src.zone.dflags[r.target] = true;
+ r.iifnames = null_if_empty(r.src.zone.match_devices);
+ }
- if (r.dest?.zone)
+ if (r.dest?.zone) {
r.dest.zone.dflags[r.target] = true;
+ r.oifnames = null_if_empty(r.dest.zone.match_devices);
+ }
}
else {
r.chain = "output";
r.jump_chain = "handle_reject";
}
+ if (r.device)
+ r[r.direction ? "oifnames" : "iifnames"] = [ r.device.device ];
+
this.state.rules = this.state.rules || [];
push(this.state.rules, r);
};
break;
}
+ sip = subnets_split_af(rule.src_ip);
+ dip = subnets_split_af(rule.dest_ip);
+
family = infer_family(family, [
ipset, "set match",
- rule.src, "source zone",
- rule.dest, "destination zone",
+ sip, "source IP",
+ dip, "destination IP",
+ rule.src?.zone, "source zone",
+ rule.dest?.zone, "destination zone",
rule.helper, "helper match",
rule.set_helper, "helper to set"
]);
continue;
}
- sip = subnets_split_af(rule.src_ip);
- dip = subnets_split_af(rule.dest_ip);
-
let has_ipv4_specifics = (length(sip[0]) || length(dip[0]) || length(itypes4) || rule.dscp !== null);
let has_ipv6_specifics = (length(sip[1]) || length(dip[1]) || length(itypes6) || rule.dscp !== null);
if (proto.name == "ipv6-icmp")
family = 6;
- family = infer_family(family, [
- ipset, "set match",
- redir.src, "source zone",
- redir.dest, "destination zone",
- redir.helper, "helper match"
- ]);
-
- if (type(family) == "string") {
- this.warn_section(data, family + ", skipping");
- continue;
- }
-
switch (redir.target) {
case "dnat":
sip = subnets_split_af(redir.src_ip);
break;
}
- /* build reflection rules */
- if (redir.reflection && (length(rip[0]) || length(rip[1])) && redir.src?.zone && redir.dest?.zone) {
- let refredir = {
- name: redir.name + " (reflection)",
+ break;
+
+ case "snat":
+ sip = subnets_split_af(redir.src_ip);
+ dip = subnets_split_af(redir.dest_ip);
+ rip = subnets_split_af(redir.src_dip);
+
+ switch (proto.name) {
+ case "tcp":
+ case "udp":
+ sport = redir.src_port;
+ dport = redir.dest_port;
+ rport = redir.src_dport;
+ break;
+ }
- helper: redir.helper,
+ break;
+ }
- // XXX: this likely makes no sense for reflection rules
- //src_mac: redir.src_mac,
+ family = infer_family(family, [
+ ipset, "set match",
+ sip, "source IP",
+ dip, "destination IP",
+ rip, "rewrite IP",
+ redir.src?.zone, "source zone",
+ redir.dest?.zone, "destination zone",
+ redir.helper, "helper match"
+ ]);
- limit: redir.limit,
- limit_burst: redir.limit_burst,
+ if (type(family) == "string") {
+ this.warn_section(data, family + ", skipping");
+ continue;
+ }
- start_date: redir.start_date,
- stop_date: redir.stop_date,
- start_time: redir.start_time,
- stop_time: redir.stop_time,
- weekdays: redir.weekdays,
+ /* build reflection rules */
+ if (redir.target == "dnat" && redir.reflection &&
+ (length(rip[0]) || length(rip[1])) && redir.src?.zone && redir.dest?.zone) {
+ let refredir = {
+ name: redir.name + " (reflection)",
- mark: redir.mark
- };
+ helper: redir.helper,
- let eaddrs = length(dip) ? dip : subnets_split_af({ addrs: map(redir.src.zone.related_subnets, to_hostaddr) });
- let rzones = length(redir.reflection_zone) ? redir.reflection_zone : [ redir.dest ];
+ // XXX: this likely makes no sense for reflection rules
+ //src_mac: redir.src_mac,
- for (let rzone in rzones) {
- if (!is_family(rzone, family)) {
- this.warn_section(data,
- sprintf("is restricted to IPv%d but referenced reflection zone is IPv%d only, skipping",
- family, rzone.family));
- continue;
- }
+ limit: redir.limit,
+ limit_burst: redir.limit_burst,
- let iaddrs = subnets_split_af({ addrs: rzone.zone.related_subnets });
- let refaddrs = (redir.reflection_src == "internal") ? iaddrs : eaddrs;
+ start_date: redir.start_date,
+ stop_date: redir.stop_date,
+ start_time: redir.start_time,
+ stop_time: redir.stop_time,
+ weekdays: redir.weekdays,
- for (let i = 0; i <= 1; i++) {
- if (redir.src.zone[i ? "masq6" : "masq"] && length(rip[i])) {
- let snat_addr = refaddrs[i]?.[0];
+ mark: redir.mark
+ };
- /* For internal reflection sources try to find a suitable candiate IP
- * among the reflection zone subnets which is within the same subnet
- * as the original DNAT destination. If we can't find any matching
- * one then simply take the first candidate. */
- if (redir.reflection_src == "internal") {
- for (let zone_addr in rzone.zone.related_subnets) {
- if (zone_addr.family != rip[i][0].family)
- continue;
+ let eaddrs = length(dip) ? dip : subnets_split_af({ addrs: map(redir.src.zone.related_subnets, to_hostaddr) });
+ let rzones = length(redir.reflection_zone) ? redir.reflection_zone : [ redir.dest ];
- let r = apply_mask(rip[i][0].addr, zone_addr.mask);
- let a = apply_mask(zone_addr.addr, zone_addr.mask);
+ for (let rzone in rzones) {
+ if (!is_family(rzone, family)) {
+ this.warn_section(data,
+ sprintf("is restricted to IPv%d but referenced reflection zone is IPv%d only, skipping",
+ family, rzone.family));
+ continue;
+ }
- if (r != a)
- continue;
+ let iaddrs = subnets_split_af({ addrs: rzone.zone.related_subnets });
+ let refaddrs = (redir.reflection_src == "internal") ? iaddrs : eaddrs;
- snat_addr = zone_addr;
- break;
- }
- }
+ for (let i = 0; i <= 1; i++) {
+ if (redir.src.zone[i ? "masq6" : "masq"] && length(rip[i])) {
+ let snat_addr = refaddrs[i]?.[0];
- if (snat_addr) {
- refredir.src = rzone;
- refredir.dest = null;
- refredir.target = "dnat";
+ /* For internal reflection sources try to find a suitable candiate IP
+ * among the reflection zone subnets which is within the same subnet
+ * as the original DNAT destination. If we can't find any matching
+ * one then simply take the first candidate. */
+ if (redir.reflection_src == "internal") {
+ for (let zone_addr in rzone.zone.related_subnets) {
+ if (zone_addr.family != rip[i][0].family)
+ continue;
- for (let saddrs in subnets_group_by_masking(iaddrs[i]))
- for (let daddrs in subnets_group_by_masking(eaddrs[i]))
- add_rule(i ? 6 : 4, proto, saddrs, daddrs, rip[i], sport, dport, rport, null, refredir);
+ let r = apply_mask(rip[i][0].addr, zone_addr.mask);
+ let a = apply_mask(zone_addr.addr, zone_addr.mask);
- refredir.src = null;
- refredir.dest = rzone;
- refredir.target = "snat";
+ if (r != a)
+ continue;
- for (let daddrs in subnets_group_by_masking(rip[i]))
- for (let saddrs in subnets_group_by_masking(iaddrs[i]))
- add_rule(i ? 6 : 4, proto, saddrs, daddrs, [ to_hostaddr(snat_addr) ], null, rport, null, null, refredir);
+ snat_addr = zone_addr;
+ break;
}
}
- }
- }
- }
+ if (!snat_addr) {
+ this.warn_section(data, (redir.reflection_src || "external") + " rewrite IP cannot be determined, disabling reflection");
+ }
+ else if (!length(iaddrs[i])) {
+ this.warn_section(data, "internal address range cannot be determined, disabling reflection");
+ }
+ else if (!length(eaddrs[i])) {
+ this.warn_section(data, "external address range cannot be determined, disabling reflection");
+ }
+ else {
+ refredir.src = rzone;
+ refredir.dest = null;
+ refredir.target = "dnat";
- break;
+ for (let saddrs in subnets_group_by_masking(iaddrs[i]))
+ for (let daddrs in subnets_group_by_masking(eaddrs[i]))
+ add_rule(i ? 6 : 4, proto, saddrs, daddrs, rip[i], sport, dport, rport, null, refredir);
- case "snat":
- sip = subnets_split_af(redir.src_ip);
- dip = subnets_split_af(redir.dest_ip);
- rip = subnets_split_af(redir.src_dip);
+ refredir.src = null;
+ refredir.dest = rzone;
+ refredir.target = "snat";
- switch (proto.name) {
- case "tcp":
- case "udp":
- sport = redir.src_port;
- dport = redir.dest_port;
- rport = redir.src_dport;
- break;
+ for (let daddrs in subnets_group_by_masking(rip[i]))
+ for (let saddrs in subnets_group_by_masking(iaddrs[i]))
+ add_rule(i ? 6 : 4, proto, saddrs, daddrs, [ to_hostaddr(snat_addr) ], null, rport, null, null, refredir);
+ }
+ }
+ }
}
-
- break;
}
if (length(rip[0]) > 1 || length(rip[1]) > 1)
projects / project / firewall4.git / blobdiff