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"
78 FW3_FLAG_MASQUERADE = 14,
79 FW3_FLAG_SRC_ACCEPT = 15,
80 FW3_FLAG_SRC_REJECT = 16,
81 FW3_FLAG_SRC_DROP = 17,
82 FW3_FLAG_CUSTOM_CHAINS = 18,
83 FW3_FLAG_SYN_FLOOD = 19,
84 FW3_FLAG_MTU_FIX = 20,
85 FW3_FLAG_DROP_INVALID = 21,
86 FW3_FLAG_HOTPLUG = 22,
91 extern const char *fw3_flag_names[__FW3_FLAG_MAX];
96 FW3_LIMIT_UNIT_SECOND = 0,
97 FW3_LIMIT_UNIT_MINUTE = 1,
98 FW3_LIMIT_UNIT_HOUR = 2,
99 FW3_LIMIT_UNIT_DAY = 3,
104 extern const char *fw3_limit_units[__FW3_LIMIT_UNIT_MAX];
107 enum fw3_ipset_method
109 FW3_IPSET_METHOD_UNSPEC = 0,
110 FW3_IPSET_METHOD_BITMAP = 1,
111 FW3_IPSET_METHOD_HASH = 2,
112 FW3_IPSET_METHOD_LIST = 3,
114 __FW3_IPSET_METHOD_MAX
119 FW3_IPSET_TYPE_UNSPEC = 0,
120 FW3_IPSET_TYPE_IP = 1,
121 FW3_IPSET_TYPE_PORT = 2,
122 FW3_IPSET_TYPE_MAC = 3,
123 FW3_IPSET_TYPE_NET = 4,
124 FW3_IPSET_TYPE_SET = 5,
129 extern const char *fw3_ipset_method_names[__FW3_IPSET_METHOD_MAX];
130 extern const char *fw3_ipset_type_names[__FW3_IPSET_TYPE_MAX];
133 enum fw3_include_type
135 FW3_INC_TYPE_SCRIPT = 0,
136 FW3_INC_TYPE_RESTORE = 1,
139 enum fw3_reflection_source
141 FW3_REFLECTION_INTERNAL = 0,
142 FW3_REFLECTION_EXTERNAL = 1,
145 struct fw3_ipset_datatype
147 struct list_head list;
148 enum fw3_ipset_type type;
158 struct fw3_ipset *ptr;
163 struct list_head list;
174 struct list_head list;
180 enum fw3_family family;
184 struct ether_addr mac;
189 struct ether_addr mac;
195 struct list_head list;
199 struct ether_addr mac;
204 struct list_head list;
213 struct list_head list;
223 struct list_head list;
226 enum fw3_family family;
240 enum fw3_limit_unit unit;
250 uint32_t monthdays; /* bit 0 is invert + 1 .. 31 */
251 uint8_t weekdays; /* bit 0 is invert + 1 .. 7 */
262 struct fw3_cthelpermatch
264 struct list_head list;
269 struct fw3_cthelper *ptr;
274 enum fw3_flag policy_input;
275 enum fw3_flag policy_output;
276 enum fw3_flag policy_forward;
281 struct fw3_limit syn_flood_rate;
285 bool tcp_window_scaling;
287 bool accept_redirects;
288 bool accept_source_route;
292 bool flow_offloading;
301 struct list_head list;
306 enum fw3_family family;
308 enum fw3_flag policy_input;
309 enum fw3_flag policy_output;
310 enum fw3_flag policy_forward;
312 struct list_head networks;
313 struct list_head devices;
314 struct list_head subnets;
316 const char *extra_src;
317 const char *extra_dest;
320 bool masq_allow_invalid;
321 struct list_head masq_src;
322 struct list_head masq_dest;
326 struct list_head cthelpers;
329 struct fw3_limit log_limit;
336 struct list_head old_addrs;
341 struct list_head list;
346 enum fw3_family family;
348 struct fw3_zone *_src;
349 struct fw3_zone *_dest;
354 struct fw3_device src;
355 struct fw3_device dest;
356 struct fw3_setmatch ipset;
357 struct fw3_cthelpermatch helper;
359 struct list_head proto;
361 struct list_head ip_src;
362 struct list_head mac_src;
363 struct list_head port_src;
365 struct list_head ip_dest;
366 struct list_head port_dest;
368 struct list_head icmp_type;
370 struct fw3_limit limit;
371 struct fw3_time time;
372 struct fw3_mark mark;
374 enum fw3_flag target;
375 struct fw3_mark set_mark;
376 struct fw3_mark set_xmark;
377 struct fw3_cthelpermatch set_helper;
384 struct list_head list;
389 enum fw3_family family;
391 struct fw3_zone *_src;
392 struct fw3_zone *_dest;
394 struct fw3_device src;
395 struct fw3_device dest;
396 struct fw3_setmatch ipset;
397 struct fw3_cthelpermatch helper;
399 struct list_head proto;
401 struct fw3_address ip_src;
402 struct list_head mac_src;
403 struct fw3_port port_src;
405 struct fw3_address ip_dest;
406 struct fw3_port port_dest;
408 struct fw3_address ip_redir;
409 struct fw3_port port_redir;
411 struct fw3_limit limit;
412 struct fw3_time time;
413 struct fw3_mark mark;
415 enum fw3_flag target;
421 enum fw3_reflection_source reflection_src;
426 struct list_head list;
431 enum fw3_family family;
433 struct fw3_zone *_src;
435 struct fw3_device src;
436 struct fw3_setmatch ipset;
437 struct fw3_cthelpermatch helper;
440 struct list_head proto;
442 struct fw3_address ip_src;
443 struct fw3_port port_src;
445 struct fw3_address ip_dest;
446 struct fw3_port port_dest;
448 struct fw3_address ip_snat;
449 struct fw3_port port_snat;
451 struct fw3_limit limit;
452 struct fw3_time time;
453 struct fw3_mark mark;
454 bool connlimit_ports;
456 enum fw3_flag target;
463 struct list_head list;
468 enum fw3_family family;
470 struct fw3_zone *_src;
471 struct fw3_zone *_dest;
473 struct fw3_device src;
474 struct fw3_device dest;
479 struct list_head list;
483 enum fw3_family family;
485 enum fw3_ipset_method method;
486 struct list_head datatypes;
488 struct fw3_address iprange;
489 struct fw3_port portrange;
497 const char *external;
499 struct list_head entries;
500 const char *loadfile;
507 struct list_head list;
511 enum fw3_family family;
514 enum fw3_include_type type;
521 struct list_head list;
526 const char *description;
527 enum fw3_family family;
528 struct fw3_protocol proto;
529 struct fw3_port port;
534 struct list_head list;
540 struct uci_context *uci;
541 struct fw3_defaults defaults;
542 struct list_head zones;
543 struct list_head rules;
544 struct list_head redirects;
545 struct list_head snats;
546 struct list_head forwards;
547 struct list_head ipsets;
548 struct list_head includes;
549 struct list_head cthelpers;
555 struct fw3_chain_spec {
566 bool (*parse)(void *, const char *, bool);
571 #define FW3_OPT(name, parse, structure, member) \
572 { name, fw3_parse_##parse, offsetof(struct fw3_##structure, member) }
574 #define FW3_LIST(name, parse, structure, member) \
575 { name, fw3_parse_##parse, offsetof(struct fw3_##structure, member), \
576 sizeof(struct fw3_##structure) }
578 bool fw3_parse_bool(void *ptr, const char *val, bool is_list);
579 bool fw3_parse_int(void *ptr, const char *val, bool is_list);
580 bool fw3_parse_string(void *ptr, const char *val, bool is_list);
581 bool fw3_parse_target(void *ptr, const char *val, bool is_list);
582 bool fw3_parse_limit(void *ptr, const char *val, bool is_list);
583 bool fw3_parse_device(void *ptr, const char *val, bool is_list);
584 bool fw3_parse_address(void *ptr, const char *val, bool is_list);
585 bool fw3_parse_network(void *ptr, const char *val, bool is_list);
586 bool fw3_parse_mac(void *ptr, const char *val, bool is_list);
587 bool fw3_parse_port(void *ptr, const char *val, bool is_list);
588 bool fw3_parse_family(void *ptr, const char *val, bool is_list);
589 bool fw3_parse_icmptype(void *ptr, const char *val, bool is_list);
590 bool fw3_parse_protocol(void *ptr, const char *val, bool is_list);
592 bool fw3_parse_ipset_method(void *ptr, const char *val, bool is_list);
593 bool fw3_parse_ipset_datatype(void *ptr, const char *val, bool is_list);
595 bool fw3_parse_include_type(void *ptr, const char *val, bool is_list);
596 bool fw3_parse_reflection_source(void *ptr, const char *val, bool is_list);
598 bool fw3_parse_date(void *ptr, const char *val, bool is_list);
599 bool fw3_parse_time(void *ptr, const char *val, bool is_list);
600 bool fw3_parse_weekdays(void *ptr, const char *val, bool is_list);
601 bool fw3_parse_monthdays(void *ptr, const char *val, bool is_list);
602 bool fw3_parse_mark(void *ptr, const char *val, bool is_list);
603 bool fw3_parse_setmatch(void *ptr, const char *val, bool is_list);
604 bool fw3_parse_direction(void *ptr, const char *val, bool is_list);
605 bool fw3_parse_cthelper(void *ptr, const char *val, bool is_list);
606 bool fw3_parse_setentry(void *ptr, const char *val, bool is_list);
608 bool fw3_parse_options(void *s, const struct fw3_option *opts,
609 struct uci_section *section);
610 bool fw3_parse_blob_options(void *s, const struct fw3_option *opts,
611 struct blob_attr *a, const char *name);
613 const char * fw3_address_to_string(struct fw3_address *address,
614 bool allow_invert, bool as_cidr);