2 * firewall3 - 3rd OpenWrt UCI firewall implementation
4 * Copyright (C) 2013-2014 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.
19 #ifndef __FW3_OPTIONS_H
20 #define __FW3_OPTIONS_H
33 #include <arpa/inet.h>
34 #include <sys/socket.h>
37 #include <netinet/in.h>
38 #include <netinet/ether.h>
44 #include <libubox/list.h>
45 #include <libubox/utils.h>
46 #include <libubox/blobmsg.h>
48 #include "icmp_codes.h"
79 FW3_FLAG_MASQUERADE = 15,
80 FW3_FLAG_SRC_ACCEPT = 16,
81 FW3_FLAG_SRC_REJECT = 17,
82 FW3_FLAG_SRC_DROP = 18,
83 FW3_FLAG_CUSTOM_CHAINS = 19,
84 FW3_FLAG_SYN_FLOOD = 20,
85 FW3_FLAG_MTU_FIX = 21,
86 FW3_FLAG_DROP_INVALID = 22,
87 FW3_FLAG_HOTPLUG = 23,
94 FW3_REJECT_CODE_TCP_RESET = 0,
95 FW3_REJECT_CODE_PORT_UNREACH = 1,
96 FW3_REJECT_CODE_ADM_PROHIBITED = 2,
101 extern const char *fw3_flag_names[__FW3_FLAG_MAX];
106 FW3_LIMIT_UNIT_SECOND = 0,
107 FW3_LIMIT_UNIT_MINUTE = 1,
108 FW3_LIMIT_UNIT_HOUR = 2,
109 FW3_LIMIT_UNIT_DAY = 3,
114 extern const char *fw3_limit_units[__FW3_LIMIT_UNIT_MAX];
117 enum fw3_ipset_method
119 FW3_IPSET_METHOD_UNSPEC = 0,
120 FW3_IPSET_METHOD_BITMAP = 1,
121 FW3_IPSET_METHOD_HASH = 2,
122 FW3_IPSET_METHOD_LIST = 3,
124 __FW3_IPSET_METHOD_MAX
129 FW3_IPSET_TYPE_UNSPEC = 0,
130 FW3_IPSET_TYPE_IP = 1,
131 FW3_IPSET_TYPE_PORT = 2,
132 FW3_IPSET_TYPE_MAC = 3,
133 FW3_IPSET_TYPE_NET = 4,
134 FW3_IPSET_TYPE_SET = 5,
139 extern const char *fw3_ipset_method_names[__FW3_IPSET_METHOD_MAX];
140 extern const char *fw3_ipset_type_names[__FW3_IPSET_TYPE_MAX];
143 enum fw3_include_type
145 FW3_INC_TYPE_SCRIPT = 0,
146 FW3_INC_TYPE_RESTORE = 1,
149 enum fw3_reflection_source
151 FW3_REFLECTION_INTERNAL = 0,
152 FW3_REFLECTION_EXTERNAL = 1,
155 struct fw3_ipset_datatype
157 struct list_head list;
158 enum fw3_ipset_type type;
168 struct fw3_ipset *ptr;
173 struct list_head list;
184 struct list_head list;
190 enum fw3_family family;
194 struct ether_addr mac;
199 struct ether_addr mac;
205 struct list_head list;
209 struct ether_addr mac;
214 struct list_head list;
223 struct list_head list;
233 struct list_head list;
236 enum fw3_family family;
250 enum fw3_limit_unit unit;
260 uint32_t monthdays; /* bit 0 is invert + 1 .. 31 */
261 uint8_t weekdays; /* bit 0 is invert + 1 .. 7 */
279 struct fw3_cthelpermatch
281 struct list_head list;
286 struct fw3_cthelper *ptr;
291 enum fw3_flag policy_input;
292 enum fw3_flag policy_output;
293 enum fw3_flag policy_forward;
296 enum fw3_reject_code tcp_reject_code;
297 enum fw3_reject_code any_reject_code;
300 struct fw3_limit syn_flood_rate;
304 bool tcp_window_scaling;
306 bool accept_redirects;
307 bool accept_source_route;
311 bool flow_offloading;
312 bool flow_offloading_hw;
321 struct list_head list;
326 enum fw3_family family;
328 enum fw3_flag policy_input;
329 enum fw3_flag policy_output;
330 enum fw3_flag policy_forward;
332 struct list_head networks;
333 struct list_head devices;
334 struct list_head subnets;
336 const char *extra_src;
337 const char *extra_dest;
340 bool masq_allow_invalid;
341 struct list_head masq_src;
342 struct list_head masq_dest;
346 struct list_head cthelpers;
349 struct fw3_limit log_limit;
356 struct list_head old_addrs;
361 struct list_head list;
366 enum fw3_family family;
368 struct fw3_zone *_src;
369 struct fw3_zone *_dest;
374 struct fw3_device src;
375 struct fw3_device dest;
376 struct fw3_setmatch ipset;
377 struct fw3_cthelpermatch helper;
379 struct list_head proto;
381 struct list_head ip_src;
382 struct list_head mac_src;
383 struct list_head port_src;
385 struct list_head ip_dest;
386 struct list_head port_dest;
388 struct list_head icmp_type;
390 struct fw3_limit limit;
391 struct fw3_time time;
392 struct fw3_mark mark;
393 struct fw3_dscp dscp;
395 enum fw3_flag target;
396 struct fw3_mark set_mark;
397 struct fw3_mark set_xmark;
398 struct fw3_dscp set_dscp;
399 struct fw3_cthelpermatch set_helper;
406 struct list_head list;
411 enum fw3_family family;
413 struct fw3_zone *_src;
414 struct fw3_zone *_dest;
416 struct fw3_device src;
417 struct fw3_device dest;
418 struct fw3_setmatch ipset;
419 struct fw3_cthelpermatch helper;
421 struct list_head proto;
423 struct fw3_address ip_src;
424 struct list_head mac_src;
425 struct fw3_port port_src;
427 struct fw3_address ip_dest;
428 struct fw3_port port_dest;
430 struct fw3_address ip_redir;
431 struct fw3_port port_redir;
433 struct fw3_limit limit;
434 struct fw3_time time;
435 struct fw3_mark mark;
437 enum fw3_flag target;
443 enum fw3_reflection_source reflection_src;
444 struct list_head reflection_zones;
449 struct list_head list;
454 enum fw3_family family;
456 struct fw3_zone *_src;
458 struct fw3_device src;
459 struct fw3_setmatch ipset;
460 struct fw3_cthelpermatch helper;
463 struct list_head proto;
465 struct fw3_address ip_src;
466 struct fw3_port port_src;
468 struct fw3_address ip_dest;
469 struct fw3_port port_dest;
471 struct fw3_address ip_snat;
472 struct fw3_port port_snat;
474 struct fw3_limit limit;
475 struct fw3_time time;
476 struct fw3_mark mark;
477 bool connlimit_ports;
479 enum fw3_flag target;
486 struct list_head list;
491 enum fw3_family family;
493 struct fw3_zone *_src;
494 struct fw3_zone *_dest;
496 struct fw3_device src;
497 struct fw3_device dest;
502 struct list_head list;
510 enum fw3_family family;
512 enum fw3_ipset_method method;
513 struct list_head datatypes;
515 struct fw3_address iprange;
516 struct fw3_port portrange;
524 const char *external;
526 struct list_head entries;
527 const char *loadfile;
534 struct list_head list;
538 enum fw3_family family;
541 enum fw3_include_type type;
548 struct list_head list;
553 const char *description;
554 enum fw3_family family;
555 struct list_head proto;
556 struct fw3_port port;
561 struct list_head list;
567 struct uci_context *uci;
568 struct fw3_defaults defaults;
569 struct list_head zones;
570 struct list_head rules;
571 struct list_head redirects;
572 struct list_head snats;
573 struct list_head forwards;
574 struct list_head ipsets;
575 struct list_head includes;
576 struct list_head cthelpers;
582 struct fw3_chain_spec {
593 bool (*parse)(void *, const char *, bool);
598 #define FW3_OPT(name, parse, structure, member) \
599 { name, fw3_parse_##parse, offsetof(struct fw3_##structure, member) }
601 #define FW3_LIST(name, parse, structure, member) \
602 { name, fw3_parse_##parse, offsetof(struct fw3_##structure, member), \
603 sizeof(struct fw3_##structure) }
605 bool fw3_parse_bool(void *ptr, const char *val, bool is_list);
606 bool fw3_parse_int(void *ptr, const char *val, bool is_list);
607 bool fw3_parse_string(void *ptr, const char *val, bool is_list);
608 bool fw3_parse_target(void *ptr, const char *val, bool is_list);
609 bool fw3_parse_reject_code(void *ptr, const char *val, bool is_list);
610 bool fw3_parse_limit(void *ptr, const char *val, bool is_list);
611 bool fw3_parse_device(void *ptr, const char *val, bool is_list);
612 bool fw3_parse_address(void *ptr, const char *val, bool is_list);
613 bool fw3_parse_network(void *ptr, const char *val, bool is_list);
614 bool fw3_parse_mac(void *ptr, const char *val, bool is_list);
615 bool fw3_parse_port(void *ptr, const char *val, bool is_list);
616 bool fw3_parse_family(void *ptr, const char *val, bool is_list);
617 bool fw3_parse_icmptype(void *ptr, const char *val, bool is_list);
618 bool fw3_parse_protocol(void *ptr, const char *val, bool is_list);
620 bool fw3_parse_ipset_method(void *ptr, const char *val, bool is_list);
621 bool fw3_parse_ipset_datatype(void *ptr, const char *val, bool is_list);
623 bool fw3_parse_include_type(void *ptr, const char *val, bool is_list);
624 bool fw3_parse_reflection_source(void *ptr, const char *val, bool is_list);
626 bool fw3_parse_date(void *ptr, const char *val, bool is_list);
627 bool fw3_parse_time(void *ptr, const char *val, bool is_list);
628 bool fw3_parse_weekdays(void *ptr, const char *val, bool is_list);
629 bool fw3_parse_monthdays(void *ptr, const char *val, bool is_list);
630 bool fw3_parse_mark(void *ptr, const char *val, bool is_list);
631 bool fw3_parse_dscp(void *ptr, const char *val, bool is_list);
632 bool fw3_parse_setmatch(void *ptr, const char *val, bool is_list);
633 bool fw3_parse_direction(void *ptr, const char *val, bool is_list);
634 bool fw3_parse_cthelper(void *ptr, const char *val, bool is_list);
635 bool fw3_parse_setentry(void *ptr, const char *val, bool is_list);
637 bool fw3_parse_options(void *s, const struct fw3_option *opts,
638 struct uci_section *section);
639 bool fw3_parse_blob_options(void *s, const struct fw3_option *opts,
640 struct blob_attr *a, const char *name);
642 const char * fw3_address_to_string(struct fw3_address *address,
643 bool allow_invert, bool as_cidr);