2 * firewall3 - 3rd OpenWrt UCI firewall implementation
4 * Copyright (C) 2013 Jo-Philipp Wich <jo@mein.io>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 #define C(f, tbl, tgt, fmt) \
24 { FW3_FAMILY_##f, FW3_TABLE_##tbl, FW3_FLAG_##tgt, fmt }
26 static const struct fw3_chain_spec zone_chains
[] = {
27 C(ANY
, FILTER
, UNSPEC
, "zone_%s_input"),
28 C(ANY
, FILTER
, UNSPEC
, "zone_%s_output"),
29 C(ANY
, FILTER
, UNSPEC
, "zone_%s_forward"),
31 C(ANY
, FILTER
, SRC_ACCEPT
, "zone_%s_src_ACCEPT"),
32 C(ANY
, FILTER
, SRC_REJECT
, "zone_%s_src_REJECT"),
33 C(ANY
, FILTER
, SRC_DROP
, "zone_%s_src_DROP"),
35 C(ANY
, FILTER
, ACCEPT
, "zone_%s_dest_ACCEPT"),
36 C(ANY
, FILTER
, REJECT
, "zone_%s_dest_REJECT"),
37 C(ANY
, FILTER
, DROP
, "zone_%s_dest_DROP"),
39 C(V4
, NAT
, SNAT
, "zone_%s_postrouting"),
40 C(V4
, NAT
, DNAT
, "zone_%s_prerouting"),
42 C(ANY
, RAW
, NOTRACK
, "zone_%s_notrack"),
44 C(ANY
, FILTER
, CUSTOM_CHAINS
, "input_%s_rule"),
45 C(ANY
, FILTER
, CUSTOM_CHAINS
, "output_%s_rule"),
46 C(ANY
, FILTER
, CUSTOM_CHAINS
, "forwarding_%s_rule"),
48 C(V4
, NAT
, CUSTOM_CHAINS
, "prerouting_%s_rule"),
49 C(V4
, NAT
, CUSTOM_CHAINS
, "postrouting_%s_rule"),
54 const struct fw3_option fw3_zone_opts
[] = {
55 FW3_OPT("enabled", bool, zone
, enabled
),
57 FW3_OPT("name", string
, zone
, name
),
58 FW3_OPT("family", family
, zone
, family
),
60 FW3_LIST("network", device
, zone
, networks
),
61 FW3_LIST("device", device
, zone
, devices
),
62 FW3_LIST("subnet", network
, zone
, subnets
),
64 FW3_OPT("input", target
, zone
, policy_input
),
65 FW3_OPT("forward", target
, zone
, policy_forward
),
66 FW3_OPT("output", target
, zone
, policy_output
),
68 FW3_OPT("masq", bool, zone
, masq
),
69 FW3_OPT("masq_allow_invalid", bool, zone
, masq_allow_invalid
),
70 FW3_LIST("masq_src", network
, zone
, masq_src
),
71 FW3_LIST("masq_dest", network
, zone
, masq_dest
),
73 FW3_OPT("extra", string
, zone
, extra_src
),
74 FW3_OPT("extra_src", string
, zone
, extra_src
),
75 FW3_OPT("extra_dest", string
, zone
, extra_dest
),
77 FW3_OPT("mtu_fix", bool, zone
, mtu_fix
),
78 FW3_OPT("custom_chains", bool, zone
, custom_chains
),
80 FW3_OPT("log", bool, zone
, log
),
81 FW3_OPT("log_limit", limit
, zone
, log_limit
),
83 FW3_OPT("__flags_v4", int, zone
, flags
[0]),
84 FW3_OPT("__flags_v6", int, zone
, flags
[1]),
86 FW3_LIST("__addrs", address
, zone
, old_addrs
),
93 check_policy(struct uci_element
*e
, enum fw3_flag
*pol
, enum fw3_flag def
,
96 if (*pol
== FW3_FLAG_UNSPEC
)
98 warn_elem(e
, "has no %s policy specified, using default", name
);
101 else if (*pol
> FW3_FLAG_DROP
)
103 warn_elem(e
, "has invalid %s policy, using default", name
);
109 check_masq_addrs(struct list_head
*head
)
111 struct fw3_address
*addr
;
112 int n_addr
= 0, n_failed
= 0;
114 list_for_each_entry(addr
, head
, list
)
121 if (!addr
->set
&& addr
->resolved
)
125 return (n_addr
== 0 || n_failed
< n_addr
);
129 resolve_networks(struct uci_element
*e
, struct fw3_zone
*zone
)
131 struct fw3_device
*net
, *tmp
;
133 list_for_each_entry(net
, &zone
->networks
, list
)
135 tmp
= fw3_ubus_device(net
->name
);
139 warn_elem(e
, "cannot resolve device of network '%s'", net
->name
);
143 snprintf(tmp
->network
, sizeof(tmp
->network
), "%s", net
->name
);
144 list_add_tail(&tmp
->list
, &zone
->devices
);
151 struct fw3_zone
*zone
;
153 zone
= calloc(1, sizeof(*zone
));
157 INIT_LIST_HEAD(&zone
->networks
);
158 INIT_LIST_HEAD(&zone
->devices
);
159 INIT_LIST_HEAD(&zone
->subnets
);
160 INIT_LIST_HEAD(&zone
->masq_src
);
161 INIT_LIST_HEAD(&zone
->masq_dest
);
163 INIT_LIST_HEAD(&zone
->old_addrs
);
165 zone
->enabled
= true;
166 zone
->custom_chains
= true;
167 zone
->log_limit
.rate
= 10;
173 fw3_load_zones(struct fw3_state
*state
, struct uci_package
*p
)
175 struct uci_section
*s
;
176 struct uci_element
*e
;
177 struct fw3_zone
*zone
;
178 struct fw3_defaults
*defs
= &state
->defaults
;
180 INIT_LIST_HEAD(&state
->zones
);
182 uci_foreach_element(&p
->sections
, e
)
184 s
= uci_to_section(e
);
186 if (strcmp(s
->type
, "zone"))
189 zone
= fw3_alloc_zone();
194 if (!fw3_parse_options(zone
, fw3_zone_opts
, s
))
195 warn_elem(e
, "has invalid options");
203 if (!zone
->extra_dest
)
204 zone
->extra_dest
= zone
->extra_src
;
206 if (!defs
->custom_chains
&& zone
->custom_chains
)
207 zone
->custom_chains
= false;
209 if (!zone
->name
|| !*zone
->name
)
211 warn_elem(e
, "has no name - ignoring");
216 if (strlen(zone
->name
) > FW3_ZONE_MAXNAMELEN
)
218 warn_elem(e
, "must not have a name longer than %u characters",
219 FW3_ZONE_MAXNAMELEN
);
224 fw3_ubus_zone_devices(zone
);
226 if (list_empty(&zone
->networks
) && list_empty(&zone
->devices
) &&
227 list_empty(&zone
->subnets
) && !zone
->extra_src
)
229 warn_elem(e
, "has no device, network, subnet or extra options");
232 if (!check_masq_addrs(&zone
->masq_src
))
234 warn_elem(e
, "has unresolved masq_src, disabling masq");
238 if (!check_masq_addrs(&zone
->masq_dest
))
240 warn_elem(e
, "has unresolved masq_dest, disabling masq");
244 check_policy(e
, &zone
->policy_input
, defs
->policy_input
, "input");
245 check_policy(e
, &zone
->policy_output
, defs
->policy_output
, "output");
246 check_policy(e
, &zone
->policy_forward
, defs
->policy_forward
, "forward");
248 resolve_networks(e
, zone
);
252 fw3_setbit(zone
->flags
[0], FW3_FLAG_SNAT
);
255 if (zone
->custom_chains
)
257 fw3_setbit(zone
->flags
[0], FW3_FLAG_SNAT
);
258 fw3_setbit(zone
->flags
[0], FW3_FLAG_DNAT
);
261 fw3_setbit(zone
->flags
[0], fw3_to_src_target(zone
->policy_input
));
262 fw3_setbit(zone
->flags
[0], zone
->policy_forward
);
263 fw3_setbit(zone
->flags
[0], zone
->policy_output
);
265 fw3_setbit(zone
->flags
[1], fw3_to_src_target(zone
->policy_input
));
266 fw3_setbit(zone
->flags
[1], zone
->policy_forward
);
267 fw3_setbit(zone
->flags
[1], zone
->policy_output
);
269 list_add_tail(&zone
->list
, &state
->zones
);
275 print_zone_chain(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
276 bool reload
, struct fw3_zone
*zone
)
279 struct fw3_ipt_rule
*r
;
280 const struct fw3_chain_spec
*c
;
282 const char *flt_chains
[] = {
285 "forward", "forwarding",
288 const char *nat_chains
[] = {
289 "prerouting", "prerouting",
290 "postrouting", "postrouting",
293 if (!fw3_is_family(zone
, handle
->family
))
296 info(" * Zone '%s'", zone
->name
);
298 set(zone
->flags
, handle
->family
, handle
->table
);
300 if (zone
->custom_chains
)
301 set(zone
->flags
, handle
->family
, FW3_FLAG_CUSTOM_CHAINS
);
303 for (c
= zone_chains
; c
->format
; c
++)
305 /* don't touch user chains on selective stop */
306 if (reload
&& c
->flag
== FW3_FLAG_CUSTOM_CHAINS
)
309 if (!fw3_is_family(c
, handle
->family
))
312 if (c
->table
!= handle
->table
)
316 !fw3_hasbit(zone
->flags
[handle
->family
== FW3_FAMILY_V6
], c
->flag
))
319 fw3_ipt_create_chain(handle
, c
->format
, zone
->name
);
322 if (zone
->custom_chains
)
324 if (handle
->table
== FW3_TABLE_FILTER
)
326 for (i
= 0; i
< sizeof(flt_chains
)/sizeof(flt_chains
[0]); i
+= 2)
328 r
= fw3_ipt_rule_new(handle
);
329 fw3_ipt_rule_comment(r
, "user chain for %s", flt_chains
[i
+1]);
330 fw3_ipt_rule_target(r
, "%s_%s_rule", flt_chains
[i
+1], zone
->name
);
331 fw3_ipt_rule_append(r
, "zone_%s_%s", zone
->name
, flt_chains
[i
]);
334 else if (handle
->table
== FW3_TABLE_NAT
)
336 for (i
= 0; i
< sizeof(nat_chains
)/sizeof(nat_chains
[0]); i
+= 2)
338 r
= fw3_ipt_rule_new(handle
);
339 fw3_ipt_rule_comment(r
, "user chain for %s", nat_chains
[i
+1]);
340 fw3_ipt_rule_target(r
, "%s_%s_rule", nat_chains
[i
+1], zone
->name
);
341 fw3_ipt_rule_append(r
, "zone_%s_%s", zone
->name
, nat_chains
[i
]);
346 set(zone
->flags
, handle
->family
, handle
->table
);
350 print_interface_rule(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
351 bool reload
, struct fw3_zone
*zone
,
352 struct fw3_device
*dev
, struct fw3_address
*sub
)
354 struct fw3_protocol tcp
= { .protocol
= 6 };
355 struct fw3_ipt_rule
*r
;
362 const char *chains
[] = {
365 "forward", "FORWARD",
368 #define jump_target(t) \
369 ((t == FW3_FLAG_REJECT) ? "reject" : fw3_flag_names[t])
371 if (handle
->table
== FW3_TABLE_FILTER
)
373 for (t
= FW3_FLAG_ACCEPT
; t
<= FW3_FLAG_DROP
; t
++)
375 if (has(zone
->flags
, handle
->family
, fw3_to_src_target(t
)))
377 r
= fw3_ipt_rule_create(handle
, NULL
, dev
, NULL
, sub
, NULL
);
378 fw3_ipt_rule_target(r
, jump_target(t
));
379 fw3_ipt_rule_extra(r
, zone
->extra_src
);
381 if (t
== FW3_FLAG_ACCEPT
&& !state
->defaults
.drop_invalid
)
382 fw3_ipt_rule_extra(r
,
383 "-m conntrack --ctstate NEW,UNTRACKED");
385 fw3_ipt_rule_replace(r
, "zone_%s_src_%s", zone
->name
,
389 if (has(zone
->flags
, handle
->family
, t
))
391 if (t
== FW3_FLAG_ACCEPT
&&
392 zone
->masq
&& !zone
->masq_allow_invalid
)
394 r
= fw3_ipt_rule_create(handle
, NULL
, NULL
, dev
, NULL
, sub
);
395 fw3_ipt_rule_extra(r
, "-m conntrack --ctstate INVALID");
396 fw3_ipt_rule_comment(r
, "Prevent NAT leakage");
397 fw3_ipt_rule_target(r
, fw3_flag_names
[FW3_FLAG_DROP
]);
398 fw3_ipt_rule_replace(r
, "zone_%s_dest_%s", zone
->name
,
402 r
= fw3_ipt_rule_create(handle
, NULL
, NULL
, dev
, NULL
, sub
);
403 fw3_ipt_rule_target(r
, jump_target(t
));
404 fw3_ipt_rule_extra(r
, zone
->extra_dest
);
405 fw3_ipt_rule_replace(r
, "zone_%s_dest_%s", zone
->name
,
410 for (i
= 0; i
< sizeof(chains
)/sizeof(chains
[0]); i
+= 2)
412 if (*chains
[i
] == 'o')
413 r
= fw3_ipt_rule_create(handle
, NULL
, NULL
, dev
, NULL
, sub
);
415 r
= fw3_ipt_rule_create(handle
, NULL
, dev
, NULL
, sub
, NULL
);
417 fw3_ipt_rule_target(r
, "zone_%s_%s", zone
->name
, chains
[i
]);
419 if (*chains
[i
] == 'o')
420 fw3_ipt_rule_extra(r
, zone
->extra_dest
);
422 fw3_ipt_rule_extra(r
, zone
->extra_src
);
424 fw3_ipt_rule_replace(r
, chains
[i
+ 1]);
427 else if (handle
->table
== FW3_TABLE_NAT
)
429 if (has(zone
->flags
, handle
->family
, FW3_FLAG_DNAT
))
431 r
= fw3_ipt_rule_create(handle
, NULL
, dev
, NULL
, sub
, NULL
);
432 fw3_ipt_rule_target(r
, "zone_%s_prerouting", zone
->name
);
433 fw3_ipt_rule_extra(r
, zone
->extra_src
);
434 fw3_ipt_rule_replace(r
, "PREROUTING");
437 if (has(zone
->flags
, handle
->family
, FW3_FLAG_SNAT
))
439 r
= fw3_ipt_rule_create(handle
, NULL
, NULL
, dev
, NULL
, sub
);
440 fw3_ipt_rule_target(r
, "zone_%s_postrouting", zone
->name
);
441 fw3_ipt_rule_extra(r
, zone
->extra_dest
);
442 fw3_ipt_rule_replace(r
, "POSTROUTING");
445 else if (handle
->table
== FW3_TABLE_MANGLE
)
451 snprintf(buf
, sizeof(buf
) - 1, "MSSFIX(%s): ", zone
->name
);
453 r
= fw3_ipt_rule_create(handle
, &tcp
, NULL
, dev
, NULL
, sub
);
454 fw3_ipt_rule_addarg(r
, false, "--tcp-flags", "SYN,RST");
455 fw3_ipt_rule_addarg(r
, false, "SYN", NULL
);
456 fw3_ipt_rule_limit(r
, &zone
->log_limit
);
457 fw3_ipt_rule_comment(r
, "%s (mtu_fix logging)", zone
->name
);
458 fw3_ipt_rule_target(r
, "LOG");
459 fw3_ipt_rule_addarg(r
, false, "--log-prefix", buf
);
460 fw3_ipt_rule_replace(r
, "FORWARD");
463 r
= fw3_ipt_rule_create(handle
, &tcp
, NULL
, dev
, NULL
, sub
);
464 fw3_ipt_rule_addarg(r
, false, "--tcp-flags", "SYN,RST");
465 fw3_ipt_rule_addarg(r
, false, "SYN", NULL
);
466 fw3_ipt_rule_comment(r
, "%s (mtu_fix)", zone
->name
);
467 fw3_ipt_rule_target(r
, "TCPMSS");
468 fw3_ipt_rule_addarg(r
, false, "--clamp-mss-to-pmtu", NULL
);
469 fw3_ipt_rule_replace(r
, "FORWARD");
472 else if (handle
->table
== FW3_TABLE_RAW
)
474 if (has(zone
->flags
, handle
->family
, FW3_FLAG_NOTRACK
))
476 r
= fw3_ipt_rule_create(handle
, NULL
, dev
, NULL
, sub
, NULL
);
477 fw3_ipt_rule_target(r
, "zone_%s_notrack", zone
->name
);
478 fw3_ipt_rule_extra(r
, zone
->extra_src
);
479 fw3_ipt_rule_replace(r
, "PREROUTING");
485 print_interface_rules(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
486 bool reload
, struct fw3_zone
*zone
)
488 struct fw3_device
*dev
;
489 struct fw3_address
*sub
;
491 fw3_foreach(dev
, &zone
->devices
)
492 fw3_foreach(sub
, &zone
->subnets
)
494 if (!fw3_is_family(sub
, handle
->family
))
500 print_interface_rule(handle
, state
, reload
, zone
, dev
, sub
);
504 static struct fw3_address
*
505 next_addr(struct fw3_address
*addr
, struct list_head
*list
,
506 enum fw3_family family
, bool invert
)
509 struct fw3_address
*rv
;
511 for (p
= addr
? addr
->list
.next
: list
->next
; p
!= list
; p
= p
->next
)
513 rv
= list_entry(p
, struct fw3_address
, list
);
515 if (fw3_is_family(rv
, family
) && rv
->set
&& rv
->invert
== invert
)
523 print_zone_rule(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
524 bool reload
, struct fw3_zone
*zone
)
526 bool first_src
, first_dest
;
527 struct fw3_address
*msrc
;
528 struct fw3_address
*mdest
;
529 struct fw3_ipt_rule
*r
;
534 if (!fw3_is_family(zone
, handle
->family
))
537 switch (handle
->table
)
539 case FW3_TABLE_FILTER
:
540 if (has(zone
->flags
, handle
->family
, FW3_FLAG_DNAT
))
542 r
= fw3_ipt_rule_new(handle
);
543 fw3_ipt_rule_extra(r
, "-m conntrack --ctstate DNAT");
544 fw3_ipt_rule_comment(r
, "Accept port redirections");
545 fw3_ipt_rule_target(r
, fw3_flag_names
[FW3_FLAG_ACCEPT
]);
546 fw3_ipt_rule_append(r
, "zone_%s_input", zone
->name
);
548 r
= fw3_ipt_rule_new(handle
);
549 fw3_ipt_rule_extra(r
, "-m conntrack --ctstate DNAT");
550 fw3_ipt_rule_comment(r
, "Accept port forwards");
551 fw3_ipt_rule_target(r
, fw3_flag_names
[FW3_FLAG_ACCEPT
]);
552 fw3_ipt_rule_append(r
, "zone_%s_forward", zone
->name
);
555 r
= fw3_ipt_rule_new(handle
);
556 fw3_ipt_rule_target(r
, "zone_%s_src_%s", zone
->name
,
557 fw3_flag_names
[zone
->policy_input
]);
558 fw3_ipt_rule_append(r
, "zone_%s_input", zone
->name
);
560 r
= fw3_ipt_rule_new(handle
);
561 fw3_ipt_rule_target(r
, "zone_%s_dest_%s", zone
->name
,
562 fw3_flag_names
[zone
->policy_forward
]);
563 fw3_ipt_rule_append(r
, "zone_%s_forward", zone
->name
);
565 r
= fw3_ipt_rule_new(handle
);
566 fw3_ipt_rule_target(r
, "zone_%s_dest_%s", zone
->name
,
567 fw3_flag_names
[zone
->policy_output
]);
568 fw3_ipt_rule_append(r
, "zone_%s_output", zone
->name
);
572 for (t
= FW3_FLAG_REJECT
; t
<= FW3_FLAG_DROP
; t
++)
574 if (has(zone
->flags
, handle
->family
, fw3_to_src_target(t
)))
576 r
= fw3_ipt_rule_new(handle
);
578 snprintf(buf
, sizeof(buf
) - 1, "%s(src %s)",
579 fw3_flag_names
[t
], zone
->name
);
581 fw3_ipt_rule_limit(r
, &zone
->log_limit
);
582 fw3_ipt_rule_target(r
, "LOG");
583 fw3_ipt_rule_addarg(r
, false, "--log-prefix", buf
);
584 fw3_ipt_rule_append(r
, "zone_%s_src_%s",
585 zone
->name
, fw3_flag_names
[t
]);
588 if (has(zone
->flags
, handle
->family
, t
))
590 r
= fw3_ipt_rule_new(handle
);
592 snprintf(buf
, sizeof(buf
) - 1, "%s(dest %s)",
593 fw3_flag_names
[t
], zone
->name
);
595 fw3_ipt_rule_limit(r
, &zone
->log_limit
);
596 fw3_ipt_rule_target(r
, "LOG");
597 fw3_ipt_rule_addarg(r
, false, "--log-prefix", buf
);
598 fw3_ipt_rule_append(r
, "zone_%s_dest_%s",
599 zone
->name
, fw3_flag_names
[t
]);
606 if (zone
->masq
&& handle
->family
== FW3_FAMILY_V4
)
608 /* for any negated masq_src ip, emit -s addr -j RETURN rules */
610 (msrc
= next_addr(msrc
, &zone
->masq_src
,
611 handle
->family
, true)) != NULL
; )
613 msrc
->invert
= false;
614 r
= fw3_ipt_rule_new(handle
);
615 fw3_ipt_rule_src_dest(r
, msrc
, NULL
);
616 fw3_ipt_rule_target(r
, "RETURN");
617 fw3_ipt_rule_append(r
, "zone_%s_postrouting", zone
->name
);
621 /* for any negated masq_dest ip, emit -d addr -j RETURN rules */
623 (mdest
= next_addr(mdest
, &zone
->masq_dest
,
624 handle
->family
, true)) != NULL
; )
626 mdest
->invert
= false;
627 r
= fw3_ipt_rule_new(handle
);
628 fw3_ipt_rule_src_dest(r
, NULL
, mdest
);
629 fw3_ipt_rule_target(r
, "RETURN");
630 fw3_ipt_rule_append(r
, "zone_%s_postrouting", zone
->name
);
631 mdest
->invert
= true;
634 /* emit masquerading entries for non-negated addresses
635 and ensure that both src and dest loops run at least once,
636 even if there are no relevant addresses */
637 for (first_src
= true, msrc
= NULL
;
638 (msrc
= next_addr(msrc
, &zone
->masq_src
,
639 handle
->family
, false)) || first_src
;
642 for (first_dest
= true, mdest
= NULL
;
643 (mdest
= next_addr(mdest
, &zone
->masq_dest
,
644 handle
->family
, false)) || first_dest
;
647 r
= fw3_ipt_rule_new(handle
);
648 fw3_ipt_rule_src_dest(r
, msrc
, mdest
);
649 fw3_ipt_rule_target(r
, "MASQUERADE");
650 fw3_ipt_rule_append(r
, "zone_%s_postrouting", zone
->name
);
657 case FW3_TABLE_MANGLE
:
661 print_interface_rules(handle
, state
, reload
, zone
);
665 fw3_print_zone_chains(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
668 struct fw3_zone
*zone
;
670 list_for_each_entry(zone
, &state
->zones
, list
)
671 print_zone_chain(handle
, state
, reload
, zone
);
675 fw3_print_zone_rules(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
678 struct fw3_zone
*zone
;
680 list_for_each_entry(zone
, &state
->zones
, list
)
681 print_zone_rule(handle
, state
, reload
, zone
);
685 fw3_flush_zones(struct fw3_ipt_handle
*handle
, struct fw3_state
*state
,
688 struct fw3_zone
*z
, *tmp
;
689 const struct fw3_chain_spec
*c
;
692 list_for_each_entry_safe(z
, tmp
, &state
->zones
, list
)
694 if (!has(z
->flags
, handle
->family
, handle
->table
))
697 for (c
= zone_chains
; c
->format
; c
++)
699 /* don't touch user chains on selective stop */
700 if (reload
&& c
->flag
== FW3_FLAG_CUSTOM_CHAINS
)
703 if (!fw3_is_family(c
, handle
->family
))
706 if (c
->table
!= handle
->table
)
709 if (c
->flag
&& !has(z
->flags
, handle
->family
, c
->flag
))
712 snprintf(chain
, sizeof(chain
), c
->format
, z
->name
);
713 fw3_ipt_flush_chain(handle
, chain
);
715 /* keep certain basic chains that do not depend on any settings to
716 avoid purging unrelated user rules pointing to them */
717 if (reload
&& !c
->flag
)
720 fw3_ipt_delete_chain(handle
, chain
);
723 del(z
->flags
, handle
->family
, handle
->table
);
728 fw3_hotplug_zones(struct fw3_state
*state
, bool add
)
731 struct fw3_device
*d
;
733 list_for_each_entry(z
, &state
->zones
, list
)
735 if (add
!= fw3_hasbit(z
->flags
[0], FW3_FLAG_HOTPLUG
))
737 list_for_each_entry(d
, &z
->devices
, list
)
738 fw3_hotplug(add
, z
, d
);
741 fw3_setbit(z
->flags
[0], FW3_FLAG_HOTPLUG
);
743 fw3_delbit(z
->flags
[0], FW3_FLAG_HOTPLUG
);
749 fw3_lookup_zone(struct fw3_state
*state
, const char *name
)
753 if (list_empty(&state
->zones
))
756 list_for_each_entry(z
, &state
->zones
, list
)
758 if (strcmp(z
->name
, name
))
768 fw3_resolve_zone_addresses(struct fw3_zone
*zone
, struct fw3_address
*addr
)
770 struct fw3_device
*net
;
771 struct fw3_address
*cur
, *tmp
;
772 struct list_head
*all
;
774 all
= calloc(1, sizeof(*all
));
780 if (addr
&& addr
->set
)
782 tmp
= malloc(sizeof(*tmp
));
787 list_add_tail(&tmp
->list
, all
);
792 list_for_each_entry(net
, &zone
->networks
, list
)
793 fw3_ubus_address(all
, net
->name
);
795 list_for_each_entry(cur
, &zone
->subnets
, list
)
797 tmp
= malloc(sizeof(*tmp
));
803 list_add_tail(&tmp
->list
, all
);