1 /* $OpenBSD: parse.y,v 1.554 2008/10/17 12:59:53 henning Exp $ */
4 * SPDX-License-Identifier: BSD-2-Clause
6 * Copyright (c) 2001 Markus Friedl. All rights reserved.
7 * Copyright (c) 2001 Daniel Hartmeier. All rights reserved.
8 * Copyright (c) 2001 Theo de Raadt. All rights reserved.
9 * Copyright (c) 2002,2003 Henning Brauer. All rights reserved.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 __FBSDID("$FreeBSD$");
35 #define PFIOC_USE_LATEST
37 #include <sys/types.h>
38 #include <sys/socket.h>
41 #include <sys/sysctl.h>
44 #include <netinet/in.h>
45 #include <netinet/in_systm.h>
46 #include <netinet/ip.h>
47 #include <netinet/ip_icmp.h>
48 #include <netinet/icmp6.h>
49 #include <net/pfvar.h>
50 #include <arpa/inet.h>
51 #include <net/altq/altq.h>
52 #include <net/altq/altq_cbq.h>
53 #include <net/altq/altq_codel.h>
54 #include <net/altq/altq_priq.h>
55 #include <net/altq/altq_hfsc.h>
56 #include <net/altq/altq_fairq.h>
73 #include "pfctl_parser.h"
76 static struct pfctl *pf = NULL;
78 static int rulestate = 0;
79 static u_int16_t returnicmpdefault =
80 (ICMP_UNREACH << 8) | ICMP_UNREACH_PORT;
81 static u_int16_t returnicmp6default =
82 (ICMP6_DST_UNREACH << 8) | ICMP6_DST_UNREACH_NOPORT;
83 static int blockpolicy = PFRULE_DROP;
84 static int failpolicy = PFRULE_DROP;
85 static int require_order = 1;
86 static int default_statelock;
88 static TAILQ_HEAD(files, file) files = TAILQ_HEAD_INITIALIZER(files);
90 TAILQ_ENTRY(file) entry;
96 struct file *pushfile(const char *, int);
98 int check_file_secrecy(int, const char *);
101 int yyerror(const char *, ...);
102 int kw_cmp(const void *, const void *);
108 static TAILQ_HEAD(symhead, sym) symhead = TAILQ_HEAD_INITIALIZER(symhead);
110 TAILQ_ENTRY(sym) entry;
116 int symset(const char *, const char *, int);
117 char *symget(const char *);
119 int atoul(char *, u_long *);
132 struct node_proto *next;
133 struct node_proto *tail;
139 struct node_port *next;
140 struct node_port *tail;
146 struct node_uid *next;
147 struct node_uid *tail;
153 struct node_gid *next;
154 struct node_gid *tail;
161 struct node_icmp *next;
162 struct node_icmp *tail;
165 enum { PF_STATE_OPT_MAX, PF_STATE_OPT_NOSYNC, PF_STATE_OPT_SRCTRACK,
166 PF_STATE_OPT_MAX_SRC_STATES, PF_STATE_OPT_MAX_SRC_CONN,
167 PF_STATE_OPT_MAX_SRC_CONN_RATE, PF_STATE_OPT_MAX_SRC_NODES,
168 PF_STATE_OPT_OVERLOAD, PF_STATE_OPT_STATELOCK,
169 PF_STATE_OPT_TIMEOUT, PF_STATE_OPT_SLOPPY, };
171 enum { PF_SRCTRACK_NONE, PF_SRCTRACK, PF_SRCTRACK_GLOBAL, PF_SRCTRACK_RULE };
173 struct node_state_opt {
176 u_int32_t max_states;
177 u_int32_t max_src_states;
178 u_int32_t max_src_conn;
185 char tblname[PF_TABLE_NAME_SIZE];
187 u_int32_t max_src_nodes;
195 struct node_state_opt *next;
196 struct node_state_opt *tail;
200 struct node_host *host;
201 struct node_port *port;
204 static struct node_queue {
205 char queue[PF_QNAME_SIZE];
206 char parent[PF_QNAME_SIZE];
207 char ifname[IFNAMSIZ];
209 struct node_queue *next;
210 struct node_queue *tail;
213 struct node_qassign {
218 static struct filter_opts {
220 #define FOM_FLAGS 0x01
221 #define FOM_ICMP 0x02
223 #define FOM_KEEP 0x08
224 #define FOM_SRCTRACK 0x10
225 #define FOM_SETPRIO 0x0400
226 #define FOM_PRIO 0x2000
227 struct node_uid *uid;
228 struct node_gid *gid;
235 struct node_icmp *icmpspec;
240 struct node_state_opt *options;
245 struct node_qassign queues;
248 u_int8_t match_tag_not;
251 u_int8_t set_prio[2];
253 struct node_host *addr;
258 static struct antispoof_opts {
263 static struct scrub_opts {
265 #define SOM_MINTTL 0x01
266 #define SOM_MAXMSS 0x02
267 #define SOM_FRAGCACHE 0x04
268 #define SOM_SETTOS 0x08
277 u_int8_t match_tag_not;
281 static struct queue_opts {
283 #define QOM_BWSPEC 0x01
284 #define QOM_SCHEDULER 0x02
285 #define QOM_PRIORITY 0x04
286 #define QOM_TBRSIZE 0x08
287 #define QOM_QLIMIT 0x10
288 struct node_queue_bw queue_bwspec;
289 struct node_queue_opt scheduler;
291 unsigned int tbrsize;
295 static struct table_opts {
298 struct node_tinithead init_nodes;
301 static struct pool_opts {
303 #define POM_TYPE 0x01
304 #define POM_STICKYADDRESS 0x02
308 struct pf_poolhashkey *key;
312 static struct codel_opts codel_opts;
313 static struct node_hfsc_opts hfsc_opts;
314 static struct node_fairq_opts fairq_opts;
315 static struct node_state_opt *keep_state_defaults = NULL;
317 int disallow_table(struct node_host *, const char *);
318 int disallow_urpf_failed(struct node_host *, const char *);
319 int disallow_alias(struct node_host *, const char *);
320 int rule_consistent(struct pf_rule *, int);
321 int filter_consistent(struct pf_rule *, int);
322 int nat_consistent(struct pf_rule *);
323 int rdr_consistent(struct pf_rule *);
324 int process_tabledef(char *, struct table_opts *);
325 void expand_label_str(char *, size_t, const char *, const char *);
326 void expand_label_if(const char *, char *, size_t, const char *);
327 void expand_label_addr(const char *, char *, size_t, u_int8_t,
329 void expand_label_port(const char *, char *, size_t,
331 void expand_label_proto(const char *, char *, size_t, u_int8_t);
332 void expand_label_nr(const char *, char *, size_t);
333 void expand_label(char *, size_t, const char *, u_int8_t,
334 struct node_host *, struct node_port *, struct node_host *,
335 struct node_port *, u_int8_t);
336 void expand_rule(struct pf_rule *, struct node_if *,
337 struct node_host *, struct node_proto *, struct node_os *,
338 struct node_host *, struct node_port *, struct node_host *,
339 struct node_port *, struct node_uid *, struct node_gid *,
340 struct node_icmp *, const char *);
341 int expand_altq(struct pf_altq *, struct node_if *,
342 struct node_queue *, struct node_queue_bw bwspec,
343 struct node_queue_opt *);
344 int expand_queue(struct pf_altq *, struct node_if *,
345 struct node_queue *, struct node_queue_bw,
346 struct node_queue_opt *);
347 int expand_skip_interface(struct node_if *);
349 int check_rulestate(int);
350 int getservice(char *);
351 int rule_label(struct pf_rule *, char *);
352 int rt_tableid_max(void);
354 void mv_rules(struct pf_ruleset *, struct pf_ruleset *);
355 void decide_address_family(struct node_host *, sa_family_t *);
356 void remove_invalid_hosts(struct node_host **, sa_family_t *);
357 int invalid_redirect(struct node_host *, sa_family_t);
358 u_int16_t parseicmpspec(char *, sa_family_t);
359 int kw_casecmp(const void *, const void *);
360 int map_tos(char *string, int *);
362 static TAILQ_HEAD(loadanchorshead, loadanchors)
363 loadanchorshead = TAILQ_HEAD_INITIALIZER(loadanchorshead);
366 TAILQ_ENTRY(loadanchors) entries;
389 struct node_if *interface;
390 struct node_proto *proto;
391 struct node_icmp *icmp;
392 struct node_host *host;
394 struct node_port *port;
395 struct node_uid *uid;
396 struct node_gid *gid;
397 struct node_state_opt *state_opt;
400 struct peer src, dst;
401 struct node_os *src_os;
404 struct node_host *host;
408 struct pf_poolhashkey *key;
411 struct node_host *host;
416 struct node_state_opt *options;
427 struct pf_poolhashkey *hashkey;
428 struct node_queue *queue;
429 struct node_queue_opt queue_options;
430 struct node_queue_bw queue_bwspec;
431 struct node_qassign qassign;
432 struct filter_opts filter_opts;
433 struct antispoof_opts antispoof_opts;
434 struct queue_opts queue_opts;
435 struct scrub_opts scrub_opts;
436 struct table_opts table_opts;
437 struct pool_opts pool_opts;
438 struct node_hfsc_opts hfsc_opts;
439 struct node_fairq_opts fairq_opts;
440 struct codel_opts codel_opts;
445 #define PPORT_RANGE 1
447 int parseport(char *, struct range *r, int);
449 #define DYNIF_MULTIADDR(addr) ((addr).type == PF_ADDR_DYNIFTL && \
450 (!((addr).iflags & PFI_AFLAG_NOALIAS) || \
451 !isdigit((addr).v.ifname[strlen((addr).v.ifname)-1])))
455 %token PASS BLOCK SCRUB RETURN IN OS OUT LOG QUICK ON FROM TO FLAGS
456 %token RETURNRST RETURNICMP RETURNICMP6 PROTO INET INET6 ALL ANY ICMPTYPE
457 %token ICMP6TYPE CODE KEEP MODULATE STATE PORT RDR NAT BINAT ARROW NODF
458 %token MINTTL ERROR ALLOWOPTS FASTROUTE FILENAME ROUTETO DUPTO REPLYTO NO LABEL
459 %token NOROUTE URPFFAILED FRAGMENT USER GROUP MAXMSS MAXIMUM TTL TOS DROP TABLE
460 %token REASSEMBLE FRAGDROP FRAGCROP ANCHOR NATANCHOR RDRANCHOR BINATANCHOR
461 %token SET OPTIMIZATION TIMEOUT LIMIT LOGINTERFACE BLOCKPOLICY FAILPOLICY
462 %token RANDOMID REQUIREORDER SYNPROXY FINGERPRINTS NOSYNC DEBUG SKIP HOSTID
463 %token ANTISPOOF FOR INCLUDE
464 %token BITMASK RANDOM SOURCEHASH ROUNDROBIN STATICPORT PROBABILITY
465 %token ALTQ CBQ CODEL PRIQ HFSC FAIRQ BANDWIDTH TBRSIZE LINKSHARE REALTIME
466 %token UPPERLIMIT QUEUE PRIORITY QLIMIT HOGS BUCKETS RTABLE TARGET INTERVAL
467 %token LOAD RULESET_OPTIMIZATION PRIO
468 %token STICKYADDRESS MAXSRCSTATES MAXSRCNODES SOURCETRACK GLOBAL RULE
469 %token MAXSRCCONN MAXSRCCONNRATE OVERLOAD FLUSH SLOPPY
470 %token TAGGED TAG IFBOUND FLOATING STATEPOLICY STATEDEFAULTS ROUTE SETTOS
471 %token DIVERTTO DIVERTREPLY
472 %token <v.string> STRING
473 %token <v.number> NUMBER
474 %token <v.i> PORTBINARY
475 %type <v.interface> interface if_list if_item_not if_item
476 %type <v.number> number icmptype icmp6type uid gid
477 %type <v.number> tos not yesno
478 %type <v.probability> probability
479 %type <v.i> no dir af fragcache optimizer
480 %type <v.i> sourcetrack flush unaryop statelock
481 %type <v.b> action nataction natpasslog scrubaction
482 %type <v.b> flags flag blockspec prio
483 %type <v.range> portplain portstar portrange
484 %type <v.hashkey> hashkey
485 %type <v.proto> proto proto_list proto_item
486 %type <v.number> protoval
487 %type <v.icmp> icmpspec
488 %type <v.icmp> icmp_list icmp_item
489 %type <v.icmp> icmp6_list icmp6_item
490 %type <v.number> reticmpspec reticmp6spec
491 %type <v.fromto> fromto
492 %type <v.peer> ipportspec from to
493 %type <v.host> ipspec toipspec xhost host dynaddr host_list
494 %type <v.host> redir_host_list redirspec
495 %type <v.host> route_host route_host_list routespec
496 %type <v.os> os xos os_list
497 %type <v.port> portspec port_list port_item
498 %type <v.uid> uids uid_list uid_item
499 %type <v.gid> gids gid_list gid_item
500 %type <v.route> route
501 %type <v.redirection> redirection redirpool
502 %type <v.string> label stringall tag anchorname
503 %type <v.string> string varstring numberstring
504 %type <v.keep_state> keep
505 %type <v.state_opt> state_opt_spec state_opt_list state_opt_item
506 %type <v.logquick> logquick quick log logopts logopt
507 %type <v.interface> antispoof_ifspc antispoof_iflst antispoof_if
508 %type <v.qassign> qname
509 %type <v.queue> qassign qassign_list qassign_item
510 %type <v.queue_options> scheduler
511 %type <v.number> cbqflags_list cbqflags_item
512 %type <v.number> priqflags_list priqflags_item
513 %type <v.hfsc_opts> hfscopts_list hfscopts_item hfsc_opts
514 %type <v.fairq_opts> fairqopts_list fairqopts_item fairq_opts
515 %type <v.codel_opts> codelopts_list codelopts_item codel_opts
516 %type <v.queue_bwspec> bandwidth
517 %type <v.filter_opts> filter_opts filter_opt filter_opts_l
518 %type <v.filter_opts> filter_sets filter_set filter_sets_l
519 %type <v.antispoof_opts> antispoof_opts antispoof_opt antispoof_opts_l
520 %type <v.queue_opts> queue_opts queue_opt queue_opts_l
521 %type <v.scrub_opts> scrub_opts scrub_opt scrub_opts_l
522 %type <v.table_opts> table_opts table_opt table_opts_l
523 %type <v.pool_opts> pool_opts pool_opt pool_opts_l
524 %type <v.tagged> tagged
525 %type <v.rtableid> rtable
528 ruleset : /* empty */
529 | ruleset include '\n'
531 | ruleset option '\n'
532 | ruleset scrubrule '\n'
533 | ruleset natrule '\n'
534 | ruleset binatrule '\n'
535 | ruleset pfrule '\n'
536 | ruleset anchorrule '\n'
537 | ruleset loadrule '\n'
538 | ruleset altqif '\n'
539 | ruleset queuespec '\n'
540 | ruleset varset '\n'
541 | ruleset antispoof '\n'
542 | ruleset tabledef '\n'
543 | '{' fakeanchor '}' '\n';
544 | ruleset error '\n' { file->errors++; }
547 include : INCLUDE STRING {
550 if ((nfile = pushfile($2, 0)) == NULL) {
551 yyerror("failed to include file %s", $2);
563 * apply to previouslys specified rule: must be careful to note
564 * what that is: pf or nat or binat or rdr
566 fakeanchor : fakeanchor '\n'
567 | fakeanchor anchorrule '\n'
568 | fakeanchor binatrule '\n'
569 | fakeanchor natrule '\n'
570 | fakeanchor pfrule '\n'
571 | fakeanchor error '\n'
575 if (!strcmp($1, "none"))
577 else if (!strcmp($1, "basic"))
578 $$ = PF_OPTIMIZE_BASIC;
579 else if (!strcmp($1, "profile"))
580 $$ = PF_OPTIMIZE_BASIC | PF_OPTIMIZE_PROFILE;
582 yyerror("unknown ruleset-optimization %s", $1);
588 option : SET OPTIMIZATION STRING {
589 if (check_rulestate(PFCTL_STATE_OPTION)) {
593 if (pfctl_set_optimization(pf, $3) != 0) {
594 yyerror("unknown optimization %s", $3);
600 | SET RULESET_OPTIMIZATION optimizer {
601 if (!(pf->opts & PF_OPT_OPTIMIZE)) {
602 pf->opts |= PF_OPT_OPTIMIZE;
606 | SET TIMEOUT timeout_spec
607 | SET TIMEOUT '{' optnl timeout_list '}'
608 | SET LIMIT limit_spec
609 | SET LIMIT '{' optnl limit_list '}'
610 | SET LOGINTERFACE stringall {
611 if (check_rulestate(PFCTL_STATE_OPTION)) {
615 if (pfctl_set_logif(pf, $3) != 0) {
616 yyerror("error setting loginterface %s", $3);
622 | SET HOSTID number {
623 if ($3 == 0 || $3 > UINT_MAX) {
624 yyerror("hostid must be non-zero");
627 if (pfctl_set_hostid(pf, $3) != 0) {
628 yyerror("error setting hostid %08x", $3);
632 | SET BLOCKPOLICY DROP {
633 if (pf->opts & PF_OPT_VERBOSE)
634 printf("set block-policy drop\n");
635 if (check_rulestate(PFCTL_STATE_OPTION))
637 blockpolicy = PFRULE_DROP;
639 | SET BLOCKPOLICY RETURN {
640 if (pf->opts & PF_OPT_VERBOSE)
641 printf("set block-policy return\n");
642 if (check_rulestate(PFCTL_STATE_OPTION))
644 blockpolicy = PFRULE_RETURN;
646 | SET FAILPOLICY DROP {
647 if (pf->opts & PF_OPT_VERBOSE)
648 printf("set fail-policy drop\n");
649 if (check_rulestate(PFCTL_STATE_OPTION))
651 failpolicy = PFRULE_DROP;
653 | SET FAILPOLICY RETURN {
654 if (pf->opts & PF_OPT_VERBOSE)
655 printf("set fail-policy return\n");
656 if (check_rulestate(PFCTL_STATE_OPTION))
658 failpolicy = PFRULE_RETURN;
660 | SET REQUIREORDER yesno {
661 if (pf->opts & PF_OPT_VERBOSE)
662 printf("set require-order %s\n",
663 $3 == 1 ? "yes" : "no");
666 | SET FINGERPRINTS STRING {
667 if (pf->opts & PF_OPT_VERBOSE)
668 printf("set fingerprints \"%s\"\n", $3);
669 if (check_rulestate(PFCTL_STATE_OPTION)) {
673 if (!pf->anchor->name[0]) {
674 if (pfctl_file_fingerprints(pf->dev,
676 yyerror("error loading "
677 "fingerprints %s", $3);
684 | SET STATEPOLICY statelock {
685 if (pf->opts & PF_OPT_VERBOSE)
688 printf("set state-policy floating\n");
691 printf("set state-policy if-bound\n");
694 default_statelock = $3;
697 if (check_rulestate(PFCTL_STATE_OPTION)) {
701 if (pfctl_set_debug(pf, $3) != 0) {
702 yyerror("error setting debuglevel %s", $3);
708 | SET SKIP interface {
709 if (expand_skip_interface($3) != 0) {
710 yyerror("error setting skip interface(s)");
714 | SET STATEDEFAULTS state_opt_list {
715 if (keep_state_defaults != NULL) {
716 yyerror("cannot redefine state-defaults");
719 keep_state_defaults = $3;
723 stringall : STRING { $$ = $1; }
725 if (($$ = strdup("all")) == NULL) {
726 err(1, "stringall: strdup");
731 string : STRING string {
732 if (asprintf(&$$, "%s %s", $1, $2) == -1)
733 err(1, "string: asprintf");
740 varstring : numberstring varstring {
741 if (asprintf(&$$, "%s %s", $1, $2) == -1)
742 err(1, "string: asprintf");
749 numberstring : NUMBER {
751 if (asprintf(&s, "%lld", (long long)$1) == -1) {
752 yyerror("string: asprintf");
760 varset : STRING '=' varstring {
761 if (pf->opts & PF_OPT_VERBOSE)
762 printf("%s = \"%s\"\n", $1, $3);
763 if (symset($1, $3, 0) == -1)
764 err(1, "cannot store variable %s", $1);
770 anchorname : STRING { $$ = $1; }
771 | /* empty */ { $$ = NULL; }
774 pfa_anchorlist : /* empty */
775 | pfa_anchorlist '\n'
776 | pfa_anchorlist pfrule '\n'
777 | pfa_anchorlist anchorrule '\n'
782 char ta[PF_ANCHOR_NAME_SIZE];
783 struct pf_ruleset *rs;
785 /* steping into a brace anchor */
790 /* create a holding ruleset in the root */
791 snprintf(ta, PF_ANCHOR_NAME_SIZE, "_%d", pf->bn);
792 rs = pf_find_or_create_ruleset(ta);
794 err(1, "pfa_anchor: pf_find_or_create_ruleset");
795 pf->astack[pf->asd] = rs->anchor;
796 pf->anchor = rs->anchor;
797 } '\n' pfa_anchorlist '}'
799 pf->alast = pf->anchor;
801 pf->anchor = pf->astack[pf->asd];
806 anchorrule : ANCHOR anchorname dir quick interface af proto fromto
807 filter_opts pfa_anchor
810 struct node_proto *proto;
812 if (check_rulestate(PFCTL_STATE_FILTER)) {
818 if ($2 && ($2[0] == '_' || strstr($2, "/_") != NULL)) {
820 yyerror("anchor names beginning with '_' "
821 "are reserved for internal use");
825 memset(&r, 0, sizeof(r));
826 if (pf->astack[pf->asd + 1]) {
827 /* move inline rules into relative location */
829 &pf->astack[pf->asd]->ruleset,
830 $2 ? $2 : pf->alast->name);
832 if (r.anchor == NULL)
833 err(1, "anchorrule: unable to "
836 if (pf->alast != r.anchor) {
837 if (r.anchor->match) {
838 yyerror("inline anchor '%s' "
843 mv_rules(&pf->alast->ruleset,
846 pf_remove_if_empty_ruleset(&pf->alast->ruleset);
847 pf->alast = r.anchor;
850 yyerror("anchors without explicit "
851 "rules must specify a name");
859 r.rtableid = $9.rtableid;
862 if (strlcpy(r.tagname, $9.tag,
863 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
864 yyerror("tag too long, max %u chars",
865 PF_TAG_NAME_SIZE - 1);
869 if (strlcpy(r.match_tagname, $9.match_tag,
870 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
871 yyerror("tag too long, max %u chars",
872 PF_TAG_NAME_SIZE - 1);
875 r.match_tag_not = $9.match_tag_not;
876 if (rule_label(&r, $9.label))
879 r.flags = $9.flags.b1;
880 r.flagset = $9.flags.b2;
881 if (($9.flags.b1 & $9.flags.b2) != $9.flags.b1) {
882 yyerror("flags always false");
885 if ($9.flags.b1 || $9.flags.b2 || $8.src_os) {
886 for (proto = $7; proto != NULL &&
887 proto->proto != IPPROTO_TCP;
890 if (proto == NULL && $7 != NULL) {
891 if ($9.flags.b1 || $9.flags.b2)
893 "flags only apply to tcp");
896 "OS fingerprinting only "
904 if ($9.keep.action) {
905 yyerror("cannot specify state handling "
911 if (strlcpy(r.match_tagname, $9.match_tag,
912 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
913 yyerror("tag too long, max %u chars",
914 PF_TAG_NAME_SIZE - 1);
917 r.match_tag_not = $9.match_tag_not;
918 if ($9.marker & FOM_PRIO) {
920 r.prio = PF_PRIO_ZERO;
924 if ($9.marker & FOM_SETPRIO) {
925 r.set_prio[0] = $9.set_prio[0];
926 r.set_prio[1] = $9.set_prio[1];
927 r.scrub_flags |= PFSTATE_SETPRIO;
930 decide_address_family($8.src.host, &r.af);
931 decide_address_family($8.dst.host, &r.af);
933 expand_rule(&r, $5, NULL, $7, $8.src_os,
934 $8.src.host, $8.src.port, $8.dst.host, $8.dst.port,
935 $9.uid, $9.gid, $9.icmpspec,
936 pf->astack[pf->asd + 1] ? pf->alast->name : $2);
938 pf->astack[pf->asd + 1] = NULL;
940 | NATANCHOR string interface af proto fromto rtable {
943 if (check_rulestate(PFCTL_STATE_NAT)) {
948 memset(&r, 0, sizeof(r));
953 decide_address_family($6.src.host, &r.af);
954 decide_address_family($6.dst.host, &r.af);
956 expand_rule(&r, $3, NULL, $5, $6.src_os,
957 $6.src.host, $6.src.port, $6.dst.host, $6.dst.port,
961 | RDRANCHOR string interface af proto fromto rtable {
964 if (check_rulestate(PFCTL_STATE_NAT)) {
969 memset(&r, 0, sizeof(r));
974 decide_address_family($6.src.host, &r.af);
975 decide_address_family($6.dst.host, &r.af);
977 if ($6.src.port != NULL) {
978 yyerror("source port parameter not supported"
982 if ($6.dst.port != NULL) {
983 if ($6.dst.port->next != NULL) {
984 yyerror("destination port list "
985 "expansion not supported in "
988 } else if ($6.dst.port->op != PF_OP_EQ) {
989 yyerror("destination port operators"
990 " not supported in rdr-anchor");
993 r.dst.port[0] = $6.dst.port->port[0];
994 r.dst.port[1] = $6.dst.port->port[1];
995 r.dst.port_op = $6.dst.port->op;
998 expand_rule(&r, $3, NULL, $5, $6.src_os,
999 $6.src.host, $6.src.port, $6.dst.host, $6.dst.port,
1003 | BINATANCHOR string interface af proto fromto rtable {
1006 if (check_rulestate(PFCTL_STATE_NAT)) {
1011 memset(&r, 0, sizeof(r));
1012 r.action = PF_BINAT;
1016 if ($5->next != NULL) {
1017 yyerror("proto list expansion"
1018 " not supported in binat-anchor");
1021 r.proto = $5->proto;
1025 if ($6.src.host != NULL || $6.src.port != NULL ||
1026 $6.dst.host != NULL || $6.dst.port != NULL) {
1027 yyerror("fromto parameter not supported"
1028 " in binat-anchor");
1032 decide_address_family($6.src.host, &r.af);
1033 decide_address_family($6.dst.host, &r.af);
1035 pfctl_add_rule(pf, &r, $2);
1040 loadrule : LOAD ANCHOR string FROM string {
1041 struct loadanchors *loadanchor;
1043 if (strlen(pf->anchor->name) + 1 +
1044 strlen($3) >= MAXPATHLEN) {
1045 yyerror("anchorname %s too long, max %u\n",
1046 $3, MAXPATHLEN - 1);
1050 loadanchor = calloc(1, sizeof(struct loadanchors));
1051 if (loadanchor == NULL)
1052 err(1, "loadrule: calloc");
1053 if ((loadanchor->anchorname = malloc(MAXPATHLEN)) ==
1055 err(1, "loadrule: malloc");
1056 if (pf->anchor->name[0])
1057 snprintf(loadanchor->anchorname, MAXPATHLEN,
1058 "%s/%s", pf->anchor->name, $3);
1060 strlcpy(loadanchor->anchorname, $3, MAXPATHLEN);
1061 if ((loadanchor->filename = strdup($5)) == NULL)
1062 err(1, "loadrule: strdup");
1064 TAILQ_INSERT_TAIL(&loadanchorshead, loadanchor,
1071 scrubaction : no SCRUB {
1080 scrubrule : scrubaction dir logquick interface af proto fromto scrub_opts
1084 if (check_rulestate(PFCTL_STATE_SCRUB))
1087 memset(&r, 0, sizeof(r));
1095 yyerror("scrub rules do not support 'quick'");
1101 r.rule_flag |= PFRULE_NODF;
1103 r.rule_flag |= PFRULE_RANDOMID;
1104 if ($8.reassemble_tcp) {
1105 if (r.direction != PF_INOUT) {
1106 yyerror("reassemble tcp rules can not "
1107 "specify direction");
1110 r.rule_flag |= PFRULE_REASSEMBLE_TCP;
1113 r.min_ttl = $8.minttl;
1115 r.max_mss = $8.maxmss;
1116 if ($8.marker & SOM_SETTOS) {
1117 r.rule_flag |= PFRULE_SET_TOS;
1118 r.set_tos = $8.settos;
1121 r.rule_flag |= $8.fragcache;
1123 if (strlcpy(r.match_tagname, $8.match_tag,
1124 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
1125 yyerror("tag too long, max %u chars",
1126 PF_TAG_NAME_SIZE - 1);
1129 r.match_tag_not = $8.match_tag_not;
1130 r.rtableid = $8.rtableid;
1132 expand_rule(&r, $4, NULL, $6, $7.src_os,
1133 $7.src.host, $7.src.port, $7.dst.host, $7.dst.port,
1134 NULL, NULL, NULL, "");
1139 bzero(&scrub_opts, sizeof scrub_opts);
1140 scrub_opts.rtableid = -1;
1143 { $$ = scrub_opts; }
1145 bzero(&scrub_opts, sizeof scrub_opts);
1146 scrub_opts.rtableid = -1;
1151 scrub_opts_l : scrub_opts_l scrub_opt
1156 if (scrub_opts.nodf) {
1157 yyerror("no-df cannot be respecified");
1160 scrub_opts.nodf = 1;
1163 if (scrub_opts.marker & SOM_MINTTL) {
1164 yyerror("min-ttl cannot be respecified");
1167 if ($2 < 0 || $2 > 255) {
1168 yyerror("illegal min-ttl value %d", $2);
1171 scrub_opts.marker |= SOM_MINTTL;
1172 scrub_opts.minttl = $2;
1175 if (scrub_opts.marker & SOM_MAXMSS) {
1176 yyerror("max-mss cannot be respecified");
1179 if ($2 < 0 || $2 > 65535) {
1180 yyerror("illegal max-mss value %d", $2);
1183 scrub_opts.marker |= SOM_MAXMSS;
1184 scrub_opts.maxmss = $2;
1187 if (scrub_opts.marker & SOM_SETTOS) {
1188 yyerror("set-tos cannot be respecified");
1191 scrub_opts.marker |= SOM_SETTOS;
1192 scrub_opts.settos = $2;
1195 if (scrub_opts.marker & SOM_FRAGCACHE) {
1196 yyerror("fragcache cannot be respecified");
1199 scrub_opts.marker |= SOM_FRAGCACHE;
1200 scrub_opts.fragcache = $1;
1202 | REASSEMBLE STRING {
1203 if (strcasecmp($2, "tcp") != 0) {
1204 yyerror("scrub reassemble supports only tcp, "
1210 if (scrub_opts.reassemble_tcp) {
1211 yyerror("reassemble tcp cannot be respecified");
1214 scrub_opts.reassemble_tcp = 1;
1217 if (scrub_opts.randomid) {
1218 yyerror("random-id cannot be respecified");
1221 scrub_opts.randomid = 1;
1224 if ($2 < 0 || $2 > rt_tableid_max()) {
1225 yyerror("invalid rtable id");
1228 scrub_opts.rtableid = $2;
1230 | not TAGGED string {
1231 scrub_opts.match_tag = $3;
1232 scrub_opts.match_tag_not = $1;
1236 fragcache : FRAGMENT REASSEMBLE { $$ = 0; /* default */ }
1237 | FRAGMENT FRAGCROP { $$ = 0; }
1238 | FRAGMENT FRAGDROP { $$ = 0; }
1241 antispoof : ANTISPOOF logquick antispoof_ifspc af antispoof_opts {
1243 struct node_host *h = NULL, *hh;
1244 struct node_if *i, *j;
1246 if (check_rulestate(PFCTL_STATE_FILTER))
1249 for (i = $3; i; i = i->next) {
1250 bzero(&r, sizeof(r));
1253 r.direction = PF_IN;
1258 if (rule_label(&r, $5.label))
1260 r.rtableid = $5.rtableid;
1261 j = calloc(1, sizeof(struct node_if));
1263 err(1, "antispoof: calloc");
1264 if (strlcpy(j->ifname, i->ifname,
1265 sizeof(j->ifname)) >= sizeof(j->ifname)) {
1267 yyerror("interface name too long");
1272 h = calloc(1, sizeof(*h));
1274 err(1, "address: calloc");
1275 h->addr.type = PF_ADDR_DYNIFTL;
1277 if (strlcpy(h->addr.v.ifname, i->ifname,
1278 sizeof(h->addr.v.ifname)) >=
1279 sizeof(h->addr.v.ifname)) {
1282 "interface name too long");
1285 hh = malloc(sizeof(*hh));
1287 err(1, "address: malloc");
1288 bcopy(h, hh, sizeof(*hh));
1289 h->addr.iflags = PFI_AFLAG_NETWORK;
1291 h = ifa_lookup(j->ifname,
1297 expand_rule(&r, j, NULL, NULL, NULL, h,
1298 NULL, NULL, NULL, NULL, NULL,
1301 if ((i->ifa_flags & IFF_LOOPBACK) == 0) {
1302 bzero(&r, sizeof(r));
1305 r.direction = PF_IN;
1310 if (rule_label(&r, $5.label))
1312 r.rtableid = $5.rtableid;
1316 h = ifa_lookup(i->ifname, 0);
1318 expand_rule(&r, NULL, NULL,
1319 NULL, NULL, h, NULL, NULL,
1320 NULL, NULL, NULL, NULL, "");
1328 antispoof_ifspc : FOR antispoof_if { $$ = $2; }
1329 | FOR '{' optnl antispoof_iflst '}' { $$ = $4; }
1332 antispoof_iflst : antispoof_if optnl { $$ = $1; }
1333 | antispoof_iflst comma antispoof_if optnl {
1334 $1->tail->next = $3;
1340 antispoof_if : if_item { $$ = $1; }
1348 bzero(&antispoof_opts, sizeof antispoof_opts);
1349 antispoof_opts.rtableid = -1;
1352 { $$ = antispoof_opts; }
1354 bzero(&antispoof_opts, sizeof antispoof_opts);
1355 antispoof_opts.rtableid = -1;
1356 $$ = antispoof_opts;
1360 antispoof_opts_l : antispoof_opts_l antispoof_opt
1364 antispoof_opt : label {
1365 if (antispoof_opts.label) {
1366 yyerror("label cannot be redefined");
1369 antispoof_opts.label = $1;
1372 if ($2 < 0 || $2 > rt_tableid_max()) {
1373 yyerror("invalid rtable id");
1376 antispoof_opts.rtableid = $2;
1380 not : '!' { $$ = 1; }
1381 | /* empty */ { $$ = 0; }
1384 tabledef : TABLE '<' STRING '>' table_opts {
1385 struct node_host *h, *nh;
1386 struct node_tinit *ti, *nti;
1388 if (strlen($3) >= PF_TABLE_NAME_SIZE) {
1389 yyerror("table name too long, max %d chars",
1390 PF_TABLE_NAME_SIZE - 1);
1394 if (pf->loadopt & PFCTL_FLAG_TABLE)
1395 if (process_tabledef($3, &$5)) {
1400 for (ti = SIMPLEQ_FIRST(&$5.init_nodes);
1401 ti != SIMPLEQ_END(&$5.init_nodes); ti = nti) {
1404 for (h = ti->host; h != NULL; h = nh) {
1408 nti = SIMPLEQ_NEXT(ti, entries);
1415 bzero(&table_opts, sizeof table_opts);
1416 SIMPLEQ_INIT(&table_opts.init_nodes);
1419 { $$ = table_opts; }
1422 bzero(&table_opts, sizeof table_opts);
1423 SIMPLEQ_INIT(&table_opts.init_nodes);
1428 table_opts_l : table_opts_l table_opt
1432 table_opt : STRING {
1433 if (!strcmp($1, "const"))
1434 table_opts.flags |= PFR_TFLAG_CONST;
1435 else if (!strcmp($1, "persist"))
1436 table_opts.flags |= PFR_TFLAG_PERSIST;
1437 else if (!strcmp($1, "counters"))
1438 table_opts.flags |= PFR_TFLAG_COUNTERS;
1440 yyerror("invalid table option '%s'", $1);
1446 | '{' optnl '}' { table_opts.init_addr = 1; }
1447 | '{' optnl host_list '}' {
1448 struct node_host *n;
1449 struct node_tinit *ti;
1451 for (n = $3; n != NULL; n = n->next) {
1452 switch (n->addr.type) {
1453 case PF_ADDR_ADDRMASK:
1456 yyerror("address ranges are not "
1457 "permitted inside tables");
1459 case PF_ADDR_DYNIFTL:
1460 yyerror("dynamic addresses are not "
1461 "permitted inside tables");
1464 yyerror("tables cannot contain tables");
1466 case PF_ADDR_NOROUTE:
1467 yyerror("\"no-route\" is not permitted "
1470 case PF_ADDR_URPFFAILED:
1471 yyerror("\"urpf-failed\" is not "
1472 "permitted inside tables");
1475 yyerror("unknown address type %d",
1480 if (!(ti = calloc(1, sizeof(*ti))))
1481 err(1, "table_opt: calloc");
1483 SIMPLEQ_INSERT_TAIL(&table_opts.init_nodes, ti,
1485 table_opts.init_addr = 1;
1488 struct node_tinit *ti;
1490 if (!(ti = calloc(1, sizeof(*ti))))
1491 err(1, "table_opt: calloc");
1493 SIMPLEQ_INSERT_TAIL(&table_opts.init_nodes, ti,
1495 table_opts.init_addr = 1;
1499 altqif : ALTQ interface queue_opts QUEUE qassign {
1502 if (check_rulestate(PFCTL_STATE_QUEUE))
1505 memset(&a, 0, sizeof(a));
1506 if ($3.scheduler.qtype == ALTQT_NONE) {
1507 yyerror("no scheduler specified!");
1510 a.scheduler = $3.scheduler.qtype;
1511 a.qlimit = $3.qlimit;
1512 a.tbrsize = $3.tbrsize;
1513 if ($5 == NULL && $3.scheduler.qtype != ALTQT_CODEL) {
1514 yyerror("no child queues specified");
1517 if (expand_altq(&a, $2, $5, $3.queue_bwspec,
1523 queuespec : QUEUE STRING interface queue_opts qassign {
1526 if (check_rulestate(PFCTL_STATE_QUEUE)) {
1531 memset(&a, 0, sizeof(a));
1533 if (strlcpy(a.qname, $2, sizeof(a.qname)) >=
1535 yyerror("queue name too long (max "
1536 "%d chars)", PF_QNAME_SIZE-1);
1542 yyerror("cannot specify tbrsize for queue");
1545 if ($4.priority > 255) {
1546 yyerror("priority out of range: max 255");
1549 a.priority = $4.priority;
1550 a.qlimit = $4.qlimit;
1551 a.scheduler = $4.scheduler.qtype;
1552 if (expand_queue(&a, $3, $5, $4.queue_bwspec,
1554 yyerror("errors in queue definition");
1561 bzero(&queue_opts, sizeof queue_opts);
1562 queue_opts.priority = DEFAULT_PRIORITY;
1563 queue_opts.qlimit = DEFAULT_QLIMIT;
1564 queue_opts.scheduler.qtype = ALTQT_NONE;
1565 queue_opts.queue_bwspec.bw_percent = 100;
1568 { $$ = queue_opts; }
1570 bzero(&queue_opts, sizeof queue_opts);
1571 queue_opts.priority = DEFAULT_PRIORITY;
1572 queue_opts.qlimit = DEFAULT_QLIMIT;
1573 queue_opts.scheduler.qtype = ALTQT_NONE;
1574 queue_opts.queue_bwspec.bw_percent = 100;
1579 queue_opts_l : queue_opts_l queue_opt
1583 queue_opt : BANDWIDTH bandwidth {
1584 if (queue_opts.marker & QOM_BWSPEC) {
1585 yyerror("bandwidth cannot be respecified");
1588 queue_opts.marker |= QOM_BWSPEC;
1589 queue_opts.queue_bwspec = $2;
1592 if (queue_opts.marker & QOM_PRIORITY) {
1593 yyerror("priority cannot be respecified");
1596 if ($2 < 0 || $2 > 255) {
1597 yyerror("priority out of range: max 255");
1600 queue_opts.marker |= QOM_PRIORITY;
1601 queue_opts.priority = $2;
1604 if (queue_opts.marker & QOM_QLIMIT) {
1605 yyerror("qlimit cannot be respecified");
1608 if ($2 < 0 || $2 > 65535) {
1609 yyerror("qlimit out of range: max 65535");
1612 queue_opts.marker |= QOM_QLIMIT;
1613 queue_opts.qlimit = $2;
1616 if (queue_opts.marker & QOM_SCHEDULER) {
1617 yyerror("scheduler cannot be respecified");
1620 queue_opts.marker |= QOM_SCHEDULER;
1621 queue_opts.scheduler = $1;
1624 if (queue_opts.marker & QOM_TBRSIZE) {
1625 yyerror("tbrsize cannot be respecified");
1628 if ($2 < 0 || $2 > UINT_MAX) {
1629 yyerror("tbrsize too big: max %u", UINT_MAX);
1632 queue_opts.marker |= QOM_TBRSIZE;
1633 queue_opts.tbrsize = $2;
1637 bandwidth : STRING {
1643 bps = strtod($1, &cp);
1645 if (strlen(cp) > 1) {
1647 if (!strcmp(cu, "Bit") ||
1649 !strcmp(cu, "bit") ||
1654 if (!strcmp(cp, "b"))
1656 else if (!strcmp(cp, "K"))
1658 else if (!strcmp(cp, "M"))
1660 else if (!strcmp(cp, "G"))
1661 bps *= 1000 * 1000 * 1000;
1662 else if (!strcmp(cp, "%")) {
1663 if (bps < 0 || bps > 100) {
1664 yyerror("bandwidth spec "
1669 $$.bw_percent = bps;
1672 yyerror("unknown unit %s", cp);
1678 $$.bw_absolute = (u_int64_t)bps;
1681 if ($1 < 0 || $1 >= LLONG_MAX) {
1682 yyerror("bandwidth number too big");
1686 $$.bw_absolute = $1;
1691 $$.qtype = ALTQT_CBQ;
1692 $$.data.cbq_opts.flags = 0;
1694 | CBQ '(' cbqflags_list ')' {
1695 $$.qtype = ALTQT_CBQ;
1696 $$.data.cbq_opts.flags = $3;
1699 $$.qtype = ALTQT_PRIQ;
1700 $$.data.priq_opts.flags = 0;
1702 | PRIQ '(' priqflags_list ')' {
1703 $$.qtype = ALTQT_PRIQ;
1704 $$.data.priq_opts.flags = $3;
1707 $$.qtype = ALTQT_HFSC;
1708 bzero(&$$.data.hfsc_opts,
1709 sizeof(struct node_hfsc_opts));
1711 | HFSC '(' hfsc_opts ')' {
1712 $$.qtype = ALTQT_HFSC;
1713 $$.data.hfsc_opts = $3;
1716 $$.qtype = ALTQT_FAIRQ;
1717 bzero(&$$.data.fairq_opts,
1718 sizeof(struct node_fairq_opts));
1720 | FAIRQ '(' fairq_opts ')' {
1721 $$.qtype = ALTQT_FAIRQ;
1722 $$.data.fairq_opts = $3;
1725 $$.qtype = ALTQT_CODEL;
1726 bzero(&$$.data.codel_opts,
1727 sizeof(struct codel_opts));
1729 | CODEL '(' codel_opts ')' {
1730 $$.qtype = ALTQT_CODEL;
1731 $$.data.codel_opts = $3;
1735 cbqflags_list : cbqflags_item { $$ |= $1; }
1736 | cbqflags_list comma cbqflags_item { $$ |= $3; }
1739 cbqflags_item : STRING {
1740 if (!strcmp($1, "default"))
1741 $$ = CBQCLF_DEFCLASS;
1742 else if (!strcmp($1, "borrow"))
1744 else if (!strcmp($1, "red"))
1746 else if (!strcmp($1, "ecn"))
1747 $$ = CBQCLF_RED|CBQCLF_ECN;
1748 else if (!strcmp($1, "rio"))
1750 else if (!strcmp($1, "codel"))
1753 yyerror("unknown cbq flag \"%s\"", $1);
1761 priqflags_list : priqflags_item { $$ |= $1; }
1762 | priqflags_list comma priqflags_item { $$ |= $3; }
1765 priqflags_item : STRING {
1766 if (!strcmp($1, "default"))
1767 $$ = PRCF_DEFAULTCLASS;
1768 else if (!strcmp($1, "red"))
1770 else if (!strcmp($1, "ecn"))
1771 $$ = PRCF_RED|PRCF_ECN;
1772 else if (!strcmp($1, "rio"))
1774 else if (!strcmp($1, "codel"))
1777 yyerror("unknown priq flag \"%s\"", $1);
1787 sizeof(struct node_hfsc_opts));
1794 hfscopts_list : hfscopts_item
1795 | hfscopts_list comma hfscopts_item
1798 hfscopts_item : LINKSHARE bandwidth {
1799 if (hfsc_opts.linkshare.used) {
1800 yyerror("linkshare already specified");
1803 hfsc_opts.linkshare.m2 = $2;
1804 hfsc_opts.linkshare.used = 1;
1806 | LINKSHARE '(' bandwidth comma NUMBER comma bandwidth ')'
1808 if ($5 < 0 || $5 > INT_MAX) {
1809 yyerror("timing in curve out of range");
1812 if (hfsc_opts.linkshare.used) {
1813 yyerror("linkshare already specified");
1816 hfsc_opts.linkshare.m1 = $3;
1817 hfsc_opts.linkshare.d = $5;
1818 hfsc_opts.linkshare.m2 = $7;
1819 hfsc_opts.linkshare.used = 1;
1821 | REALTIME bandwidth {
1822 if (hfsc_opts.realtime.used) {
1823 yyerror("realtime already specified");
1826 hfsc_opts.realtime.m2 = $2;
1827 hfsc_opts.realtime.used = 1;
1829 | REALTIME '(' bandwidth comma NUMBER comma bandwidth ')'
1831 if ($5 < 0 || $5 > INT_MAX) {
1832 yyerror("timing in curve out of range");
1835 if (hfsc_opts.realtime.used) {
1836 yyerror("realtime already specified");
1839 hfsc_opts.realtime.m1 = $3;
1840 hfsc_opts.realtime.d = $5;
1841 hfsc_opts.realtime.m2 = $7;
1842 hfsc_opts.realtime.used = 1;
1844 | UPPERLIMIT bandwidth {
1845 if (hfsc_opts.upperlimit.used) {
1846 yyerror("upperlimit already specified");
1849 hfsc_opts.upperlimit.m2 = $2;
1850 hfsc_opts.upperlimit.used = 1;
1852 | UPPERLIMIT '(' bandwidth comma NUMBER comma bandwidth ')'
1854 if ($5 < 0 || $5 > INT_MAX) {
1855 yyerror("timing in curve out of range");
1858 if (hfsc_opts.upperlimit.used) {
1859 yyerror("upperlimit already specified");
1862 hfsc_opts.upperlimit.m1 = $3;
1863 hfsc_opts.upperlimit.d = $5;
1864 hfsc_opts.upperlimit.m2 = $7;
1865 hfsc_opts.upperlimit.used = 1;
1868 if (!strcmp($1, "default"))
1869 hfsc_opts.flags |= HFCF_DEFAULTCLASS;
1870 else if (!strcmp($1, "red"))
1871 hfsc_opts.flags |= HFCF_RED;
1872 else if (!strcmp($1, "ecn"))
1873 hfsc_opts.flags |= HFCF_RED|HFCF_ECN;
1874 else if (!strcmp($1, "rio"))
1875 hfsc_opts.flags |= HFCF_RIO;
1876 else if (!strcmp($1, "codel"))
1877 hfsc_opts.flags |= HFCF_CODEL;
1879 yyerror("unknown hfsc flag \"%s\"", $1);
1889 sizeof(struct node_fairq_opts));
1896 fairqopts_list : fairqopts_item
1897 | fairqopts_list comma fairqopts_item
1900 fairqopts_item : LINKSHARE bandwidth {
1901 if (fairq_opts.linkshare.used) {
1902 yyerror("linkshare already specified");
1905 fairq_opts.linkshare.m2 = $2;
1906 fairq_opts.linkshare.used = 1;
1908 | LINKSHARE '(' bandwidth number bandwidth ')' {
1909 if (fairq_opts.linkshare.used) {
1910 yyerror("linkshare already specified");
1913 fairq_opts.linkshare.m1 = $3;
1914 fairq_opts.linkshare.d = $4;
1915 fairq_opts.linkshare.m2 = $5;
1916 fairq_opts.linkshare.used = 1;
1919 fairq_opts.hogs_bw = $2;
1922 fairq_opts.nbuckets = $2;
1925 if (!strcmp($1, "default"))
1926 fairq_opts.flags |= FARF_DEFAULTCLASS;
1927 else if (!strcmp($1, "red"))
1928 fairq_opts.flags |= FARF_RED;
1929 else if (!strcmp($1, "ecn"))
1930 fairq_opts.flags |= FARF_RED|FARF_ECN;
1931 else if (!strcmp($1, "rio"))
1932 fairq_opts.flags |= FARF_RIO;
1933 else if (!strcmp($1, "codel"))
1934 fairq_opts.flags |= FARF_CODEL;
1936 yyerror("unknown fairq flag \"%s\"", $1);
1946 sizeof(struct codel_opts));
1953 codelopts_list : codelopts_item
1954 | codelopts_list comma codelopts_item
1957 codelopts_item : INTERVAL number {
1958 if (codel_opts.interval) {
1959 yyerror("interval already specified");
1962 codel_opts.interval = $2;
1965 if (codel_opts.target) {
1966 yyerror("target already specified");
1969 codel_opts.target = $2;
1972 if (!strcmp($1, "ecn"))
1975 yyerror("unknown codel option \"%s\"", $1);
1983 qassign : /* empty */ { $$ = NULL; }
1984 | qassign_item { $$ = $1; }
1985 | '{' optnl qassign_list '}' { $$ = $3; }
1988 qassign_list : qassign_item optnl { $$ = $1; }
1989 | qassign_list comma qassign_item optnl {
1990 $1->tail->next = $3;
1996 qassign_item : STRING {
1997 $$ = calloc(1, sizeof(struct node_queue));
1999 err(1, "qassign_item: calloc");
2000 if (strlcpy($$->queue, $1, sizeof($$->queue)) >=
2001 sizeof($$->queue)) {
2002 yyerror("queue name '%s' too long (max "
2003 "%d chars)", $1, sizeof($$->queue)-1);
2014 pfrule : action dir logquick interface route af proto fromto
2018 struct node_state_opt *o;
2019 struct node_proto *proto;
2025 if (check_rulestate(PFCTL_STATE_FILTER))
2028 memset(&r, 0, sizeof(r));
2032 case PFRULE_RETURNRST:
2033 r.rule_flag |= PFRULE_RETURNRST;
2034 r.return_ttl = $1.w;
2036 case PFRULE_RETURNICMP:
2037 r.rule_flag |= PFRULE_RETURNICMP;
2038 r.return_icmp = $1.w;
2039 r.return_icmp6 = $1.w2;
2042 r.rule_flag |= PFRULE_RETURN;
2043 r.return_icmp = $1.w;
2044 r.return_icmp6 = $1.w2;
2052 r.rtableid = $9.rtableid;
2054 if ($9.marker & FOM_PRIO) {
2056 r.prio = PF_PRIO_ZERO;
2060 if ($9.marker & FOM_SETPRIO) {
2061 r.set_prio[0] = $9.set_prio[0];
2062 r.set_prio[1] = $9.set_prio[1];
2063 r.scrub_flags |= PFSTATE_SETPRIO;
2068 if (strlcpy(r.tagname, $9.tag,
2069 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
2070 yyerror("tag too long, max %u chars",
2071 PF_TAG_NAME_SIZE - 1);
2075 if (strlcpy(r.match_tagname, $9.match_tag,
2076 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
2077 yyerror("tag too long, max %u chars",
2078 PF_TAG_NAME_SIZE - 1);
2081 r.match_tag_not = $9.match_tag_not;
2082 if (rule_label(&r, $9.label))
2085 r.flags = $9.flags.b1;
2086 r.flagset = $9.flags.b2;
2087 if (($9.flags.b1 & $9.flags.b2) != $9.flags.b1) {
2088 yyerror("flags always false");
2091 if ($9.flags.b1 || $9.flags.b2 || $8.src_os) {
2092 for (proto = $7; proto != NULL &&
2093 proto->proto != IPPROTO_TCP;
2094 proto = proto->next)
2096 if (proto == NULL && $7 != NULL) {
2097 if ($9.flags.b1 || $9.flags.b2)
2099 "flags only apply to tcp");
2102 "OS fingerprinting only "
2107 if (($9.flags.b1 & parse_flags("S")) == 0 &&
2109 yyerror("OS fingerprinting requires "
2110 "the SYN TCP flag (flags S/SA)");
2117 r.keep_state = $9.keep.action;
2118 o = $9.keep.options;
2120 /* 'keep state' by default on pass rules. */
2121 if (!r.keep_state && !r.action &&
2122 !($9.marker & FOM_KEEP)) {
2123 r.keep_state = PF_STATE_NORMAL;
2124 o = keep_state_defaults;
2129 struct node_state_opt *p = o;
2132 case PF_STATE_OPT_MAX:
2134 yyerror("state option 'max' "
2135 "multiple definitions");
2138 r.max_states = o->data.max_states;
2140 case PF_STATE_OPT_NOSYNC:
2141 if (r.rule_flag & PFRULE_NOSYNC) {
2142 yyerror("state option 'sync' "
2143 "multiple definitions");
2146 r.rule_flag |= PFRULE_NOSYNC;
2148 case PF_STATE_OPT_SRCTRACK:
2150 yyerror("state option "
2152 "multiple definitions");
2155 srctrack = o->data.src_track;
2156 r.rule_flag |= PFRULE_SRCTRACK;
2158 case PF_STATE_OPT_MAX_SRC_STATES:
2159 if (r.max_src_states) {
2160 yyerror("state option "
2162 "multiple definitions");
2165 if (o->data.max_src_states == 0) {
2166 yyerror("'max-src-states' must "
2171 o->data.max_src_states;
2172 r.rule_flag |= PFRULE_SRCTRACK;
2174 case PF_STATE_OPT_OVERLOAD:
2175 if (r.overload_tblname[0]) {
2176 yyerror("multiple 'overload' "
2177 "table definitions");
2180 if (strlcpy(r.overload_tblname,
2181 o->data.overload.tblname,
2182 PF_TABLE_NAME_SIZE) >=
2183 PF_TABLE_NAME_SIZE) {
2184 yyerror("state option: "
2188 r.flush = o->data.overload.flush;
2190 case PF_STATE_OPT_MAX_SRC_CONN:
2191 if (r.max_src_conn) {
2192 yyerror("state option "
2194 "multiple definitions");
2197 if (o->data.max_src_conn == 0) {
2198 yyerror("'max-src-conn' "
2203 o->data.max_src_conn;
2204 r.rule_flag |= PFRULE_SRCTRACK |
2205 PFRULE_RULESRCTRACK;
2207 case PF_STATE_OPT_MAX_SRC_CONN_RATE:
2208 if (r.max_src_conn_rate.limit) {
2209 yyerror("state option "
2210 "'max-src-conn-rate' "
2211 "multiple definitions");
2214 if (!o->data.max_src_conn_rate.limit ||
2215 !o->data.max_src_conn_rate.seconds) {
2216 yyerror("'max-src-conn-rate' "
2217 "values must be > 0");
2220 if (o->data.max_src_conn_rate.limit >
2222 yyerror("'max-src-conn-rate' "
2223 "maximum rate must be < %u",
2227 r.max_src_conn_rate.limit =
2228 o->data.max_src_conn_rate.limit;
2229 r.max_src_conn_rate.seconds =
2230 o->data.max_src_conn_rate.seconds;
2231 r.rule_flag |= PFRULE_SRCTRACK |
2232 PFRULE_RULESRCTRACK;
2234 case PF_STATE_OPT_MAX_SRC_NODES:
2235 if (r.max_src_nodes) {
2236 yyerror("state option "
2238 "multiple definitions");
2241 if (o->data.max_src_nodes == 0) {
2242 yyerror("'max-src-nodes' must "
2247 o->data.max_src_nodes;
2248 r.rule_flag |= PFRULE_SRCTRACK |
2249 PFRULE_RULESRCTRACK;
2251 case PF_STATE_OPT_STATELOCK:
2253 yyerror("state locking option: "
2254 "multiple definitions");
2258 r.rule_flag |= o->data.statelock;
2260 case PF_STATE_OPT_SLOPPY:
2261 if (r.rule_flag & PFRULE_STATESLOPPY) {
2262 yyerror("state sloppy option: "
2263 "multiple definitions");
2266 r.rule_flag |= PFRULE_STATESLOPPY;
2268 case PF_STATE_OPT_TIMEOUT:
2269 if (o->data.timeout.number ==
2270 PFTM_ADAPTIVE_START ||
2271 o->data.timeout.number ==
2274 if (r.timeout[o->data.timeout.number]) {
2275 yyerror("state timeout %s "
2276 "multiple definitions",
2277 pf_timeouts[o->data.
2278 timeout.number].name);
2281 r.timeout[o->data.timeout.number] =
2282 o->data.timeout.seconds;
2289 /* 'flags S/SA' by default on stateful rules */
2290 if (!r.action && !r.flags && !r.flagset &&
2291 !$9.fragment && !($9.marker & FOM_FLAGS) &&
2293 r.flags = parse_flags("S");
2294 r.flagset = parse_flags("SA");
2296 if (!adaptive && r.max_states) {
2297 r.timeout[PFTM_ADAPTIVE_START] =
2298 (r.max_states / 10) * 6;
2299 r.timeout[PFTM_ADAPTIVE_END] =
2300 (r.max_states / 10) * 12;
2302 if (r.rule_flag & PFRULE_SRCTRACK) {
2303 if (srctrack == PF_SRCTRACK_GLOBAL &&
2305 yyerror("'max-src-nodes' is "
2306 "incompatible with "
2307 "'source-track global'");
2310 if (srctrack == PF_SRCTRACK_GLOBAL &&
2312 yyerror("'max-src-conn' is "
2313 "incompatible with "
2314 "'source-track global'");
2317 if (srctrack == PF_SRCTRACK_GLOBAL &&
2318 r.max_src_conn_rate.seconds) {
2319 yyerror("'max-src-conn-rate' is "
2320 "incompatible with "
2321 "'source-track global'");
2324 if (r.timeout[PFTM_SRC_NODE] <
2325 r.max_src_conn_rate.seconds)
2326 r.timeout[PFTM_SRC_NODE] =
2327 r.max_src_conn_rate.seconds;
2328 r.rule_flag |= PFRULE_SRCTRACK;
2329 if (srctrack == PF_SRCTRACK_RULE)
2330 r.rule_flag |= PFRULE_RULESRCTRACK;
2332 if (r.keep_state && !statelock)
2333 r.rule_flag |= default_statelock;
2336 r.rule_flag |= PFRULE_FRAGMENT;
2337 r.allow_opts = $9.allowopts;
2339 decide_address_family($8.src.host, &r.af);
2340 decide_address_family($8.dst.host, &r.af);
2344 yyerror("direction must be explicit "
2345 "with rules that specify routing");
2349 r.rpool.opts = $5.pool_opts;
2351 memcpy(&r.rpool.key, $5.key,
2352 sizeof(struct pf_poolhashkey));
2355 decide_address_family($5.host, &r.af);
2356 remove_invalid_hosts(&$5.host, &r.af);
2357 if ($5.host == NULL) {
2358 yyerror("no routing address with "
2359 "matching address family found.");
2362 if ((r.rpool.opts & PF_POOL_TYPEMASK) ==
2363 PF_POOL_NONE && ($5.host->next != NULL ||
2364 $5.host->addr.type == PF_ADDR_TABLE ||
2365 DYNIF_MULTIADDR($5.host->addr)))
2366 r.rpool.opts |= PF_POOL_ROUNDROBIN;
2367 if ((r.rpool.opts & PF_POOL_TYPEMASK) !=
2368 PF_POOL_ROUNDROBIN &&
2369 disallow_table($5.host, "tables are only "
2370 "supported in round-robin routing pools"))
2372 if ((r.rpool.opts & PF_POOL_TYPEMASK) !=
2373 PF_POOL_ROUNDROBIN &&
2374 disallow_alias($5.host, "interface (%s) "
2375 "is only supported in round-robin "
2378 if ($5.host->next != NULL) {
2379 if ((r.rpool.opts & PF_POOL_TYPEMASK) !=
2380 PF_POOL_ROUNDROBIN) {
2381 yyerror("r.rpool.opts must "
2382 "be PF_POOL_ROUNDROBIN");
2387 if ($9.queues.qname != NULL) {
2388 if (strlcpy(r.qname, $9.queues.qname,
2389 sizeof(r.qname)) >= sizeof(r.qname)) {
2390 yyerror("rule qname too long (max "
2391 "%d chars)", sizeof(r.qname)-1);
2394 free($9.queues.qname);
2396 if ($9.queues.pqname != NULL) {
2397 if (strlcpy(r.pqname, $9.queues.pqname,
2398 sizeof(r.pqname)) >= sizeof(r.pqname)) {
2399 yyerror("rule pqname too long (max "
2400 "%d chars)", sizeof(r.pqname)-1);
2403 free($9.queues.pqname);
2406 r.divert.port = $9.divert.port;
2408 if ((r.divert.port = $9.divert.port)) {
2409 if (r.direction == PF_OUT) {
2410 if ($9.divert.addr) {
2411 yyerror("address specified "
2412 "for outgoing divert");
2415 bzero(&r.divert.addr,
2416 sizeof(r.divert.addr));
2418 if (!$9.divert.addr) {
2419 yyerror("no address specified "
2420 "for incoming divert");
2423 if ($9.divert.addr->af != r.af) {
2424 yyerror("address family "
2425 "mismatch for divert");
2429 $9.divert.addr->addr.v.a.addr;
2434 expand_rule(&r, $4, $5.host, $7, $8.src_os,
2435 $8.src.host, $8.src.port, $8.dst.host, $8.dst.port,
2436 $9.uid, $9.gid, $9.icmpspec, "");
2441 bzero(&filter_opts, sizeof filter_opts);
2442 filter_opts.rtableid = -1;
2445 { $$ = filter_opts; }
2447 bzero(&filter_opts, sizeof filter_opts);
2448 filter_opts.rtableid = -1;
2453 filter_opts_l : filter_opts_l filter_opt
2457 filter_opt : USER uids {
2458 if (filter_opts.uid)
2459 $2->tail->next = filter_opts.uid;
2460 filter_opts.uid = $2;
2463 if (filter_opts.gid)
2464 $2->tail->next = filter_opts.gid;
2465 filter_opts.gid = $2;
2468 if (filter_opts.marker & FOM_FLAGS) {
2469 yyerror("flags cannot be redefined");
2472 filter_opts.marker |= FOM_FLAGS;
2473 filter_opts.flags.b1 |= $1.b1;
2474 filter_opts.flags.b2 |= $1.b2;
2475 filter_opts.flags.w |= $1.w;
2476 filter_opts.flags.w2 |= $1.w2;
2479 if (filter_opts.marker & FOM_ICMP) {
2480 yyerror("icmp-type cannot be redefined");
2483 filter_opts.marker |= FOM_ICMP;
2484 filter_opts.icmpspec = $1;
2487 if (filter_opts.marker & FOM_PRIO) {
2488 yyerror("prio cannot be redefined");
2491 if ($2 < 0 || $2 > PF_PRIO_MAX) {
2492 yyerror("prio must be 0 - %u", PF_PRIO_MAX);
2495 filter_opts.marker |= FOM_PRIO;
2496 filter_opts.prio = $2;
2499 if (filter_opts.marker & FOM_TOS) {
2500 yyerror("tos cannot be redefined");
2503 filter_opts.marker |= FOM_TOS;
2504 filter_opts.tos = $2;
2507 if (filter_opts.marker & FOM_KEEP) {
2508 yyerror("modulate or keep cannot be redefined");
2511 filter_opts.marker |= FOM_KEEP;
2512 filter_opts.keep.action = $1.action;
2513 filter_opts.keep.options = $1.options;
2516 filter_opts.fragment = 1;
2519 filter_opts.allowopts = 1;
2522 if (filter_opts.label) {
2523 yyerror("label cannot be redefined");
2526 filter_opts.label = $1;
2529 if (filter_opts.queues.qname) {
2530 yyerror("queue cannot be redefined");
2533 filter_opts.queues = $1;
2536 filter_opts.tag = $2;
2538 | not TAGGED string {
2539 filter_opts.match_tag = $3;
2540 filter_opts.match_tag_not = $1;
2542 | PROBABILITY probability {
2545 p = floor($2 * UINT_MAX + 0.5);
2546 if (p < 0.0 || p > UINT_MAX) {
2547 yyerror("invalid probability: %lf", p);
2550 filter_opts.prob = (u_int32_t)p;
2551 if (filter_opts.prob == 0)
2552 filter_opts.prob = 1;
2555 if ($2 < 0 || $2 > rt_tableid_max()) {
2556 yyerror("invalid rtable id");
2559 filter_opts.rtableid = $2;
2561 | DIVERTTO portplain {
2563 filter_opts.divert.port = $2.a;
2564 if (!filter_opts.divert.port) {
2565 yyerror("invalid divert port: %u", ntohs($2.a));
2570 | DIVERTTO STRING PORT portplain {
2572 if ((filter_opts.divert.addr = host($2)) == NULL) {
2573 yyerror("could not parse divert address: %s",
2582 filter_opts.divert.port = $4.a;
2583 if (!filter_opts.divert.port) {
2584 yyerror("invalid divert port: %u", ntohs($4.a));
2590 yyerror("divert-reply has no meaning in FreeBSD pf(4)");
2593 filter_opts.divert.port = 1; /* some random value */
2599 filter_sets : SET '(' filter_sets_l ')' { $$ = filter_opts; }
2600 | SET filter_set { $$ = filter_opts; }
2603 filter_sets_l : filter_sets_l comma filter_set
2608 if (filter_opts.marker & FOM_SETPRIO) {
2609 yyerror("prio cannot be redefined");
2612 filter_opts.marker |= FOM_SETPRIO;
2613 filter_opts.set_prio[0] = $1.b1;
2614 filter_opts.set_prio[1] = $1.b2;
2616 prio : PRIO NUMBER {
2617 if ($2 < 0 || $2 > PF_PRIO_MAX) {
2618 yyerror("prio must be 0 - %u", PF_PRIO_MAX);
2623 | PRIO '(' NUMBER comma NUMBER ')' {
2624 if ($3 < 0 || $3 > PF_PRIO_MAX ||
2625 $5 < 0 || $5 > PF_PRIO_MAX) {
2626 yyerror("prio must be 0 - %u", PF_PRIO_MAX);
2634 probability : STRING {
2636 double p = strtod($1, &e);
2643 yyerror("invalid probability: %s", $1);
2659 $$.w = returnicmpdefault;
2660 $$.w2 = returnicmp6default;
2662 | BLOCK blockspec { $$ = $2; $$.b1 = PF_DROP; }
2665 blockspec : /* empty */ {
2666 $$.b2 = blockpolicy;
2667 $$.w = returnicmpdefault;
2668 $$.w2 = returnicmp6default;
2671 $$.b2 = PFRULE_DROP;
2676 $$.b2 = PFRULE_RETURNRST;
2680 | RETURNRST '(' TTL NUMBER ')' {
2681 if ($4 < 0 || $4 > 255) {
2682 yyerror("illegal ttl value %d", $4);
2685 $$.b2 = PFRULE_RETURNRST;
2690 $$.b2 = PFRULE_RETURNICMP;
2691 $$.w = returnicmpdefault;
2692 $$.w2 = returnicmp6default;
2695 $$.b2 = PFRULE_RETURNICMP;
2696 $$.w = returnicmpdefault;
2697 $$.w2 = returnicmp6default;
2699 | RETURNICMP '(' reticmpspec ')' {
2700 $$.b2 = PFRULE_RETURNICMP;
2702 $$.w2 = returnicmpdefault;
2704 | RETURNICMP6 '(' reticmp6spec ')' {
2705 $$.b2 = PFRULE_RETURNICMP;
2706 $$.w = returnicmpdefault;
2709 | RETURNICMP '(' reticmpspec comma reticmp6spec ')' {
2710 $$.b2 = PFRULE_RETURNICMP;
2715 $$.b2 = PFRULE_RETURN;
2716 $$.w = returnicmpdefault;
2717 $$.w2 = returnicmp6default;
2721 reticmpspec : STRING {
2722 if (!($$ = parseicmpspec($1, AF_INET))) {
2731 if ($1 < 0 || $1 > 255) {
2732 yyerror("invalid icmp code %lu", $1);
2735 icmptype = returnicmpdefault >> 8;
2736 $$ = (icmptype << 8 | $1);
2740 reticmp6spec : STRING {
2741 if (!($$ = parseicmpspec($1, AF_INET6))) {
2750 if ($1 < 0 || $1 > 255) {
2751 yyerror("invalid icmp code %lu", $1);
2754 icmptype = returnicmp6default >> 8;
2755 $$ = (icmptype << 8 | $1);
2759 dir : /* empty */ { $$ = PF_INOUT; }
2760 | IN { $$ = PF_IN; }
2761 | OUT { $$ = PF_OUT; }
2764 quick : /* empty */ { $$.quick = 0; }
2765 | QUICK { $$.quick = 1; }
2768 logquick : /* empty */ { $$.log = 0; $$.quick = 0; $$.logif = 0; }
2769 | log { $$ = $1; $$.quick = 0; }
2770 | QUICK { $$.quick = 1; $$.log = 0; $$.logif = 0; }
2771 | log QUICK { $$ = $1; $$.quick = 1; }
2772 | QUICK log { $$ = $2; $$.quick = 1; }
2775 log : LOG { $$.log = PF_LOG; $$.logif = 0; }
2776 | LOG '(' logopts ')' {
2777 $$.log = PF_LOG | $3.log;
2778 $$.logif = $3.logif;
2782 logopts : logopt { $$ = $1; }
2783 | logopts comma logopt {
2784 $$.log = $1.log | $3.log;
2785 $$.logif = $3.logif;
2787 $$.logif = $1.logif;
2791 logopt : ALL { $$.log = PF_LOG_ALL; $$.logif = 0; }
2792 | USER { $$.log = PF_LOG_SOCKET_LOOKUP; $$.logif = 0; }
2793 | GROUP { $$.log = PF_LOG_SOCKET_LOOKUP; $$.logif = 0; }
2799 if (strncmp($2, "pflog", 5)) {
2800 yyerror("%s: should be a pflog interface", $2);
2804 i = strtonum($2 + 5, 0, 255, &errstr);
2806 yyerror("%s: %s", $2, errstr);
2815 interface : /* empty */ { $$ = NULL; }
2816 | ON if_item_not { $$ = $2; }
2817 | ON '{' optnl if_list '}' { $$ = $4; }
2820 if_list : if_item_not optnl { $$ = $1; }
2821 | if_list comma if_item_not optnl {
2822 $1->tail->next = $3;
2828 if_item_not : not if_item { $$ = $2; $$->not = $1; }
2832 struct node_host *n;
2834 $$ = calloc(1, sizeof(struct node_if));
2836 err(1, "if_item: calloc");
2837 if (strlcpy($$->ifname, $1, sizeof($$->ifname)) >=
2838 sizeof($$->ifname)) {
2841 yyerror("interface name too long");
2845 if ((n = ifa_exists($1)) != NULL)
2846 $$->ifa_flags = n->ifa_flags;
2855 af : /* empty */ { $$ = 0; }
2856 | INET { $$ = AF_INET; }
2857 | INET6 { $$ = AF_INET6; }
2860 proto : /* empty */ { $$ = NULL; }
2861 | PROTO proto_item { $$ = $2; }
2862 | PROTO '{' optnl proto_list '}' { $$ = $4; }
2865 proto_list : proto_item optnl { $$ = $1; }
2866 | proto_list comma proto_item optnl {
2867 $1->tail->next = $3;
2873 proto_item : protoval {
2878 yyerror("proto 0 cannot be used");
2881 $$ = calloc(1, sizeof(struct node_proto));
2883 err(1, "proto_item: calloc");
2893 p = getprotobyname($1);
2895 yyerror("unknown protocol %s", $1);
2903 if ($1 < 0 || $1 > 255) {
2904 yyerror("protocol outside range");
2924 os : /* empty */ { $$ = NULL; }
2925 | OS xos { $$ = $2; }
2926 | OS '{' optnl os_list '}' { $$ = $4; }
2930 $$ = calloc(1, sizeof(struct node_os));
2932 err(1, "os: calloc");
2938 os_list : xos optnl { $$ = $1; }
2939 | os_list comma xos optnl {
2940 $1->tail->next = $3;
2946 from : /* empty */ {
2960 if (disallow_urpf_failed($2.host, "\"urpf-failed\" is "
2961 "not permitted in a destination address"))
2967 ipportspec : ipspec {
2971 | ipspec PORT portspec {
2985 ipspec : ANY { $$ = NULL; }
2986 | xhost { $$ = $1; }
2987 | '{' optnl host_list '}' { $$ = $3; }
2990 toipspec : TO ipspec { $$ = $2; }
2991 | /* empty */ { $$ = NULL; }
2994 host_list : ipspec optnl { $$ = $1; }
2995 | host_list comma ipspec optnl {
2998 else if ($1 == NULL)
3001 $1->tail->next = $3;
3002 $1->tail = $3->tail;
3009 struct node_host *n;
3011 for (n = $2; n != NULL; n = n->next)
3016 $$ = calloc(1, sizeof(struct node_host));
3018 err(1, "xhost: calloc");
3019 $$->addr.type = PF_ADDR_NOROUTE;
3025 $$ = calloc(1, sizeof(struct node_host));
3027 err(1, "xhost: calloc");
3028 $$->addr.type = PF_ADDR_URPFFAILED;
3036 if (($$ = host($1)) == NULL) {
3037 /* error. "any" is handled elsewhere */
3039 yyerror("could not parse host specification");
3045 | STRING '-' STRING {
3046 struct node_host *b, *e;
3048 if ((b = host($1)) == NULL || (e = host($3)) == NULL) {
3051 yyerror("could not parse host specification");
3054 if (b->af != e->af ||
3055 b->addr.type != PF_ADDR_ADDRMASK ||
3056 e->addr.type != PF_ADDR_ADDRMASK ||
3057 unmask(&b->addr.v.a.mask, b->af) !=
3058 (b->af == AF_INET ? 32 : 128) ||
3059 unmask(&e->addr.v.a.mask, e->af) !=
3060 (e->af == AF_INET ? 32 : 128) ||
3061 b->next != NULL || b->not ||
3062 e->next != NULL || e->not) {
3067 yyerror("invalid address range");
3070 memcpy(&b->addr.v.a.mask, &e->addr.v.a.addr,
3071 sizeof(b->addr.v.a.mask));
3072 b->addr.type = PF_ADDR_RANGE;
3078 | STRING '/' NUMBER {
3081 if (asprintf(&buf, "%s/%lld", $1, (long long)$3) == -1)
3082 err(1, "host: asprintf");
3084 if (($$ = host(buf)) == NULL) {
3085 /* error. "any" is handled elsewhere */
3087 yyerror("could not parse host specification");
3092 | NUMBER '/' NUMBER {
3095 /* ie. for 10/8 parsing */
3097 if (asprintf(&buf, "%lld/%lld", (long long)$1, (long long)$3) == -1)
3099 if (asprintf(&buf, "%lld/%lld", $1, $3) == -1)
3101 err(1, "host: asprintf");
3102 if (($$ = host(buf)) == NULL) {
3103 /* error. "any" is handled elsewhere */
3105 yyerror("could not parse host specification");
3111 | dynaddr '/' NUMBER {
3112 struct node_host *n;
3114 if ($3 < 0 || $3 > 128) {
3115 yyerror("bit number too big");
3119 for (n = $1; n != NULL; n = n->next)
3123 if (strlen($2) >= PF_TABLE_NAME_SIZE) {
3124 yyerror("table name '%s' too long", $2);
3128 $$ = calloc(1, sizeof(struct node_host));
3130 err(1, "host: calloc");
3131 $$->addr.type = PF_ADDR_TABLE;
3132 if (strlcpy($$->addr.v.tblname, $2,
3133 sizeof($$->addr.v.tblname)) >=
3134 sizeof($$->addr.v.tblname))
3135 errx(1, "host: strlcpy");
3146 if (atoul($1, &ulval) == -1) {
3147 yyerror("%s is not a number", $1);
3156 dynaddr : '(' STRING ')' {
3161 if (!isalpha(op[0])) {
3162 yyerror("invalid interface name '%s'", op);
3166 while ((p = strrchr($2, ':')) != NULL) {
3167 if (!strcmp(p+1, "network"))
3168 flags |= PFI_AFLAG_NETWORK;
3169 else if (!strcmp(p+1, "broadcast"))
3170 flags |= PFI_AFLAG_BROADCAST;
3171 else if (!strcmp(p+1, "peer"))
3172 flags |= PFI_AFLAG_PEER;
3173 else if (!strcmp(p+1, "0"))
3174 flags |= PFI_AFLAG_NOALIAS;
3176 yyerror("interface %s has bad modifier",
3183 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK) {
3185 yyerror("illegal combination of "
3186 "interface modifiers");
3189 $$ = calloc(1, sizeof(struct node_host));
3191 err(1, "address: calloc");
3193 set_ipmask($$, 128);
3194 $$->addr.type = PF_ADDR_DYNIFTL;
3195 $$->addr.iflags = flags;
3196 if (strlcpy($$->addr.v.ifname, $2,
3197 sizeof($$->addr.v.ifname)) >=
3198 sizeof($$->addr.v.ifname)) {
3201 yyerror("interface name too long");
3210 portspec : port_item { $$ = $1; }
3211 | '{' optnl port_list '}' { $$ = $3; }
3214 port_list : port_item optnl { $$ = $1; }
3215 | port_list comma port_item optnl {
3216 $1->tail->next = $3;
3222 port_item : portrange {
3223 $$ = calloc(1, sizeof(struct node_port));
3225 err(1, "port_item: calloc");
3235 | unaryop portrange {
3237 yyerror("':' cannot be used with an other "
3241 $$ = calloc(1, sizeof(struct node_port));
3243 err(1, "port_item: calloc");
3250 | portrange PORTBINARY portrange {
3252 yyerror("':' cannot be used with an other "
3256 $$ = calloc(1, sizeof(struct node_port));
3258 err(1, "port_item: calloc");
3267 portplain : numberstring {
3268 if (parseport($1, &$$, 0) == -1) {
3276 portrange : numberstring {
3277 if (parseport($1, &$$, PPORT_RANGE) == -1) {
3285 uids : uid_item { $$ = $1; }
3286 | '{' optnl uid_list '}' { $$ = $3; }
3289 uid_list : uid_item optnl { $$ = $1; }
3290 | uid_list comma uid_item optnl {
3291 $1->tail->next = $3;
3298 $$ = calloc(1, sizeof(struct node_uid));
3300 err(1, "uid_item: calloc");
3308 if ($2 == UID_MAX && $1 != PF_OP_EQ && $1 != PF_OP_NE) {
3309 yyerror("user unknown requires operator = or "
3313 $$ = calloc(1, sizeof(struct node_uid));
3315 err(1, "uid_item: calloc");
3322 | uid PORTBINARY uid {
3323 if ($1 == UID_MAX || $3 == UID_MAX) {
3324 yyerror("user unknown requires operator = or "
3328 $$ = calloc(1, sizeof(struct node_uid));
3330 err(1, "uid_item: calloc");
3340 if (!strcmp($1, "unknown"))
3345 if ((pw = getpwnam($1)) == NULL) {
3346 yyerror("unknown user %s", $1);
3355 if ($1 < 0 || $1 >= UID_MAX) {
3356 yyerror("illegal uid value %lu", $1);
3363 gids : gid_item { $$ = $1; }
3364 | '{' optnl gid_list '}' { $$ = $3; }
3367 gid_list : gid_item optnl { $$ = $1; }
3368 | gid_list comma gid_item optnl {
3369 $1->tail->next = $3;
3376 $$ = calloc(1, sizeof(struct node_gid));
3378 err(1, "gid_item: calloc");
3386 if ($2 == GID_MAX && $1 != PF_OP_EQ && $1 != PF_OP_NE) {
3387 yyerror("group unknown requires operator = or "
3391 $$ = calloc(1, sizeof(struct node_gid));
3393 err(1, "gid_item: calloc");
3400 | gid PORTBINARY gid {
3401 if ($1 == GID_MAX || $3 == GID_MAX) {
3402 yyerror("group unknown requires operator = or "
3406 $$ = calloc(1, sizeof(struct node_gid));
3408 err(1, "gid_item: calloc");
3418 if (!strcmp($1, "unknown"))
3423 if ((grp = getgrnam($1)) == NULL) {
3424 yyerror("unknown group %s", $1);
3433 if ($1 < 0 || $1 >= GID_MAX) {
3434 yyerror("illegal gid value %lu", $1);
3444 if ((f = parse_flags($1)) < 0) {
3445 yyerror("bad flags %s", $1);
3454 flags : FLAGS flag '/' flag { $$.b1 = $2.b1; $$.b2 = $4.b1; }
3455 | FLAGS '/' flag { $$.b1 = 0; $$.b2 = $3.b1; }
3456 | FLAGS ANY { $$.b1 = 0; $$.b2 = 0; }
3459 icmpspec : ICMPTYPE icmp_item { $$ = $2; }
3460 | ICMPTYPE '{' optnl icmp_list '}' { $$ = $4; }
3461 | ICMP6TYPE icmp6_item { $$ = $2; }
3462 | ICMP6TYPE '{' optnl icmp6_list '}' { $$ = $4; }
3465 icmp_list : icmp_item optnl { $$ = $1; }
3466 | icmp_list comma icmp_item optnl {
3467 $1->tail->next = $3;
3473 icmp6_list : icmp6_item optnl { $$ = $1; }
3474 | icmp6_list comma icmp6_item optnl {
3475 $1->tail->next = $3;
3481 icmp_item : icmptype {
3482 $$ = calloc(1, sizeof(struct node_icmp));
3484 err(1, "icmp_item: calloc");
3487 $$->proto = IPPROTO_ICMP;
3491 | icmptype CODE STRING {
3492 const struct icmpcodeent *p;
3494 if ((p = geticmpcodebyname($1-1, $3, AF_INET)) == NULL) {
3495 yyerror("unknown icmp-code %s", $3);
3501 $$ = calloc(1, sizeof(struct node_icmp));
3503 err(1, "icmp_item: calloc");
3505 $$->code = p->code + 1;
3506 $$->proto = IPPROTO_ICMP;
3510 | icmptype CODE NUMBER {
3511 if ($3 < 0 || $3 > 255) {
3512 yyerror("illegal icmp-code %lu", $3);
3515 $$ = calloc(1, sizeof(struct node_icmp));
3517 err(1, "icmp_item: calloc");
3520 $$->proto = IPPROTO_ICMP;
3526 icmp6_item : icmp6type {
3527 $$ = calloc(1, sizeof(struct node_icmp));
3529 err(1, "icmp_item: calloc");
3532 $$->proto = IPPROTO_ICMPV6;
3536 | icmp6type CODE STRING {
3537 const struct icmpcodeent *p;
3539 if ((p = geticmpcodebyname($1-1, $3, AF_INET6)) == NULL) {
3540 yyerror("unknown icmp6-code %s", $3);
3546 $$ = calloc(1, sizeof(struct node_icmp));
3548 err(1, "icmp_item: calloc");
3550 $$->code = p->code + 1;
3551 $$->proto = IPPROTO_ICMPV6;
3555 | icmp6type CODE NUMBER {
3556 if ($3 < 0 || $3 > 255) {
3557 yyerror("illegal icmp-code %lu", $3);
3560 $$ = calloc(1, sizeof(struct node_icmp));
3562 err(1, "icmp_item: calloc");
3565 $$->proto = IPPROTO_ICMPV6;
3572 const struct icmptypeent *p;
3574 if ((p = geticmptypebyname($1, AF_INET)) == NULL) {
3575 yyerror("unknown icmp-type %s", $1);
3583 if ($1 < 0 || $1 > 255) {
3584 yyerror("illegal icmp-type %lu", $1);
3591 icmp6type : STRING {
3592 const struct icmptypeent *p;
3594 if ((p = geticmptypebyname($1, AF_INET6)) ==
3596 yyerror("unknown icmp6-type %s", $1);
3604 if ($1 < 0 || $1 > 255) {
3605 yyerror("illegal icmp6-type %lu", $1);
3616 if (map_tos($1, &val))
3618 else if ($1[0] == '0' && $1[1] == 'x') {
3620 $$ = strtoul($1, &end, 16);
3621 if (errno || *end != '\0')
3624 $$ = 256; /* flag bad argument */
3625 if ($$ < 0 || $$ > 255) {
3626 yyerror("illegal tos value %s", $1);
3634 if ($$ < 0 || $$ > 255) {
3635 yyerror("illegal tos value %s", $1);
3641 sourcetrack : SOURCETRACK { $$ = PF_SRCTRACK; }
3642 | SOURCETRACK GLOBAL { $$ = PF_SRCTRACK_GLOBAL; }
3643 | SOURCETRACK RULE { $$ = PF_SRCTRACK_RULE; }
3646 statelock : IFBOUND {
3647 $$ = PFRULE_IFBOUND;
3658 | KEEP STATE state_opt_spec {
3659 $$.action = PF_STATE_NORMAL;
3662 | MODULATE STATE state_opt_spec {
3663 $$.action = PF_STATE_MODULATE;
3666 | SYNPROXY STATE state_opt_spec {
3667 $$.action = PF_STATE_SYNPROXY;
3672 flush : /* empty */ { $$ = 0; }
3673 | FLUSH { $$ = PF_FLUSH; }
3675 $$ = PF_FLUSH | PF_FLUSH_GLOBAL;
3679 state_opt_spec : '(' state_opt_list ')' { $$ = $2; }
3680 | /* empty */ { $$ = NULL; }
3683 state_opt_list : state_opt_item { $$ = $1; }
3684 | state_opt_list comma state_opt_item {
3685 $1->tail->next = $3;
3691 state_opt_item : MAXIMUM NUMBER {
3692 if ($2 < 0 || $2 > UINT_MAX) {
3693 yyerror("only positive values permitted");
3696 $$ = calloc(1, sizeof(struct node_state_opt));
3698 err(1, "state_opt_item: calloc");
3699 $$->type = PF_STATE_OPT_MAX;
3700 $$->data.max_states = $2;
3705 $$ = calloc(1, sizeof(struct node_state_opt));
3707 err(1, "state_opt_item: calloc");
3708 $$->type = PF_STATE_OPT_NOSYNC;
3712 | MAXSRCSTATES NUMBER {
3713 if ($2 < 0 || $2 > UINT_MAX) {
3714 yyerror("only positive values permitted");
3717 $$ = calloc(1, sizeof(struct node_state_opt));
3719 err(1, "state_opt_item: calloc");
3720 $$->type = PF_STATE_OPT_MAX_SRC_STATES;
3721 $$->data.max_src_states = $2;
3725 | MAXSRCCONN NUMBER {
3726 if ($2 < 0 || $2 > UINT_MAX) {
3727 yyerror("only positive values permitted");
3730 $$ = calloc(1, sizeof(struct node_state_opt));
3732 err(1, "state_opt_item: calloc");
3733 $$->type = PF_STATE_OPT_MAX_SRC_CONN;
3734 $$->data.max_src_conn = $2;
3738 | MAXSRCCONNRATE NUMBER '/' NUMBER {
3739 if ($2 < 0 || $2 > UINT_MAX ||
3740 $4 < 0 || $4 > UINT_MAX) {
3741 yyerror("only positive values permitted");
3744 $$ = calloc(1, sizeof(struct node_state_opt));
3746 err(1, "state_opt_item: calloc");
3747 $$->type = PF_STATE_OPT_MAX_SRC_CONN_RATE;
3748 $$->data.max_src_conn_rate.limit = $2;
3749 $$->data.max_src_conn_rate.seconds = $4;
3753 | OVERLOAD '<' STRING '>' flush {
3754 if (strlen($3) >= PF_TABLE_NAME_SIZE) {
3755 yyerror("table name '%s' too long", $3);
3759 $$ = calloc(1, sizeof(struct node_state_opt));
3761 err(1, "state_opt_item: calloc");
3762 if (strlcpy($$->data.overload.tblname, $3,
3763 PF_TABLE_NAME_SIZE) >= PF_TABLE_NAME_SIZE)
3764 errx(1, "state_opt_item: strlcpy");
3766 $$->type = PF_STATE_OPT_OVERLOAD;
3767 $$->data.overload.flush = $5;
3771 | MAXSRCNODES NUMBER {
3772 if ($2 < 0 || $2 > UINT_MAX) {
3773 yyerror("only positive values permitted");
3776 $$ = calloc(1, sizeof(struct node_state_opt));
3778 err(1, "state_opt_item: calloc");
3779 $$->type = PF_STATE_OPT_MAX_SRC_NODES;
3780 $$->data.max_src_nodes = $2;
3785 $$ = calloc(1, sizeof(struct node_state_opt));
3787 err(1, "state_opt_item: calloc");
3788 $$->type = PF_STATE_OPT_SRCTRACK;
3789 $$->data.src_track = $1;
3794 $$ = calloc(1, sizeof(struct node_state_opt));
3796 err(1, "state_opt_item: calloc");
3797 $$->type = PF_STATE_OPT_STATELOCK;
3798 $$->data.statelock = $1;
3803 $$ = calloc(1, sizeof(struct node_state_opt));
3805 err(1, "state_opt_item: calloc");
3806 $$->type = PF_STATE_OPT_SLOPPY;
3813 if ($2 < 0 || $2 > UINT_MAX) {
3814 yyerror("only positive values permitted");
3817 for (i = 0; pf_timeouts[i].name &&
3818 strcmp(pf_timeouts[i].name, $1); ++i)
3820 if (!pf_timeouts[i].name) {
3821 yyerror("illegal timeout name %s", $1);
3825 if (strchr(pf_timeouts[i].name, '.') == NULL) {
3826 yyerror("illegal state timeout %s", $1);
3831 $$ = calloc(1, sizeof(struct node_state_opt));
3833 err(1, "state_opt_item: calloc");
3834 $$->type = PF_STATE_OPT_TIMEOUT;
3835 $$->data.timeout.number = pf_timeouts[i].timeout;
3836 $$->data.timeout.seconds = $2;
3842 label : LABEL STRING {
3847 qname : QUEUE STRING {
3851 | QUEUE '(' STRING ')' {
3855 | QUEUE '(' STRING comma STRING ')' {
3861 no : /* empty */ { $$ = 0; }
3865 portstar : numberstring {
3866 if (parseport($1, &$$, PPORT_RANGE|PPORT_STAR) == -1) {
3874 redirspec : host { $$ = $1; }
3875 | '{' optnl redir_host_list '}' { $$ = $3; }
3878 redir_host_list : host optnl { $$ = $1; }
3879 | redir_host_list comma host optnl {
3880 $1->tail->next = $3;
3881 $1->tail = $3->tail;
3886 redirpool : /* empty */ { $$ = NULL; }
3888 $$ = calloc(1, sizeof(struct redirection));
3890 err(1, "redirection: calloc");
3892 $$->rport.a = $$->rport.b = $$->rport.t = 0;
3894 | ARROW redirspec PORT portstar {
3895 $$ = calloc(1, sizeof(struct redirection));
3897 err(1, "redirection: calloc");
3903 hashkey : /* empty */
3905 $$ = calloc(1, sizeof(struct pf_poolhashkey));
3907 err(1, "hashkey: calloc");
3908 $$->key32[0] = arc4random();
3909 $$->key32[1] = arc4random();
3910 $$->key32[2] = arc4random();
3911 $$->key32[3] = arc4random();
3915 if (!strncmp($1, "0x", 2)) {
3916 if (strlen($1) != 34) {
3918 yyerror("hex key must be 128 bits "
3919 "(32 hex digits) long");
3922 $$ = calloc(1, sizeof(struct pf_poolhashkey));
3924 err(1, "hashkey: calloc");
3926 if (sscanf($1, "0x%8x%8x%8x%8x",
3927 &$$->key32[0], &$$->key32[1],
3928 &$$->key32[2], &$$->key32[3]) != 4) {
3931 yyerror("invalid hex key");
3937 $$ = calloc(1, sizeof(struct pf_poolhashkey));
3939 err(1, "hashkey: calloc");
3941 MD5Update(&context, (unsigned char *)$1,
3943 MD5Final((unsigned char *)$$, &context);
3944 HTONL($$->key32[0]);
3945 HTONL($$->key32[1]);
3946 HTONL($$->key32[2]);
3947 HTONL($$->key32[3]);
3953 pool_opts : { bzero(&pool_opts, sizeof pool_opts); }
3957 bzero(&pool_opts, sizeof pool_opts);
3962 pool_opts_l : pool_opts_l pool_opt
3966 pool_opt : BITMASK {
3967 if (pool_opts.type) {
3968 yyerror("pool type cannot be redefined");
3971 pool_opts.type = PF_POOL_BITMASK;
3974 if (pool_opts.type) {
3975 yyerror("pool type cannot be redefined");
3978 pool_opts.type = PF_POOL_RANDOM;
3980 | SOURCEHASH hashkey {
3981 if (pool_opts.type) {
3982 yyerror("pool type cannot be redefined");
3985 pool_opts.type = PF_POOL_SRCHASH;
3989 if (pool_opts.type) {
3990 yyerror("pool type cannot be redefined");
3993 pool_opts.type = PF_POOL_ROUNDROBIN;
3996 if (pool_opts.staticport) {
3997 yyerror("static-port cannot be redefined");
4000 pool_opts.staticport = 1;
4003 if (filter_opts.marker & POM_STICKYADDRESS) {
4004 yyerror("sticky-address cannot be redefined");
4007 pool_opts.marker |= POM_STICKYADDRESS;
4008 pool_opts.opts |= PF_POOL_STICKYADDR;
4012 redirection : /* empty */ { $$ = NULL; }
4014 $$ = calloc(1, sizeof(struct redirection));
4016 err(1, "redirection: calloc");
4018 $$->rport.a = $$->rport.b = $$->rport.t = 0;
4020 | ARROW host PORT portstar {
4021 $$ = calloc(1, sizeof(struct redirection));
4023 err(1, "redirection: calloc");
4029 natpasslog : /* empty */ { $$.b1 = $$.b2 = 0; $$.w2 = 0; }
4030 | PASS { $$.b1 = 1; $$.b2 = 0; $$.w2 = 0; }
4031 | PASS log { $$.b1 = 1; $$.b2 = $2.log; $$.w2 = $2.logif; }
4032 | log { $$.b1 = 0; $$.b2 = $1.log; $$.w2 = $1.logif; }
4035 nataction : no NAT natpasslog {
4037 yyerror("\"pass\" not valid with \"no\"");
4048 | no RDR natpasslog {
4050 yyerror("\"pass\" not valid with \"no\"");
4063 natrule : nataction interface af proto fromto tag tagged rtable
4068 if (check_rulestate(PFCTL_STATE_NAT))
4071 memset(&r, 0, sizeof(r));
4080 if ($5.src.host && $5.src.host->af &&
4081 !$5.src.host->ifindex)
4082 r.af = $5.src.host->af;
4083 else if ($5.dst.host && $5.dst.host->af &&
4084 !$5.dst.host->ifindex)
4085 r.af = $5.dst.host->af;
4089 if (strlcpy(r.tagname, $6, PF_TAG_NAME_SIZE) >=
4091 yyerror("tag too long, max %u chars",
4092 PF_TAG_NAME_SIZE - 1);
4097 if (strlcpy(r.match_tagname, $7.name,
4098 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
4099 yyerror("tag too long, max %u chars",
4100 PF_TAG_NAME_SIZE - 1);
4103 r.match_tag_not = $7.neg;
4106 if (r.action == PF_NONAT || r.action == PF_NORDR) {
4108 yyerror("translation rule with 'no' "
4109 "does not need '->'");
4113 if ($9 == NULL || $9->host == NULL) {
4114 yyerror("translation rule requires '-> "
4118 if (!r.af && ! $9->host->ifindex)
4119 r.af = $9->host->af;
4121 remove_invalid_hosts(&$9->host, &r.af);
4122 if (invalid_redirect($9->host, r.af))
4124 if (check_netmask($9->host, r.af))
4127 r.rpool.proxy_port[0] = ntohs($9->rport.a);
4131 if (!$9->rport.b && $9->rport.t &&
4132 $5.dst.port != NULL) {
4133 r.rpool.proxy_port[1] =
4134 ntohs($9->rport.a) +
4136 $5.dst.port->port[1]) -
4138 $5.dst.port->port[0]));
4140 r.rpool.proxy_port[1] =
4144 r.rpool.proxy_port[1] =
4146 if (!r.rpool.proxy_port[0] &&
4147 !r.rpool.proxy_port[1]) {
4148 r.rpool.proxy_port[0] =
4149 PF_NAT_PROXY_PORT_LOW;
4150 r.rpool.proxy_port[1] =
4151 PF_NAT_PROXY_PORT_HIGH;
4152 } else if (!r.rpool.proxy_port[1])
4153 r.rpool.proxy_port[1] =
4154 r.rpool.proxy_port[0];
4160 r.rpool.opts = $10.type;
4161 if ((r.rpool.opts & PF_POOL_TYPEMASK) ==
4162 PF_POOL_NONE && ($9->host->next != NULL ||
4163 $9->host->addr.type == PF_ADDR_TABLE ||
4164 DYNIF_MULTIADDR($9->host->addr)))
4165 r.rpool.opts = PF_POOL_ROUNDROBIN;
4166 if ((r.rpool.opts & PF_POOL_TYPEMASK) !=
4167 PF_POOL_ROUNDROBIN &&
4168 disallow_table($9->host, "tables are only "
4169 "supported in round-robin redirection "
4172 if ((r.rpool.opts & PF_POOL_TYPEMASK) !=
4173 PF_POOL_ROUNDROBIN &&
4174 disallow_alias($9->host, "interface (%s) "
4175 "is only supported in round-robin "
4176 "redirection pools"))
4178 if ($9->host->next != NULL) {
4179 if ((r.rpool.opts & PF_POOL_TYPEMASK) !=
4180 PF_POOL_ROUNDROBIN) {
4181 yyerror("only round-robin "
4182 "valid for multiple "
4183 "redirection addresses");
4189 if ($10.key != NULL)
4190 memcpy(&r.rpool.key, $10.key,
4191 sizeof(struct pf_poolhashkey));
4194 r.rpool.opts |= $10.opts;
4196 if ($10.staticport) {
4197 if (r.action != PF_NAT) {
4198 yyerror("the 'static-port' option is "
4199 "only valid with nat rules");
4202 if (r.rpool.proxy_port[0] !=
4203 PF_NAT_PROXY_PORT_LOW &&
4204 r.rpool.proxy_port[1] !=
4205 PF_NAT_PROXY_PORT_HIGH) {
4206 yyerror("the 'static-port' option can't"
4207 " be used when specifying a port"
4211 r.rpool.proxy_port[0] = 0;
4212 r.rpool.proxy_port[1] = 0;
4215 expand_rule(&r, $2, $9 == NULL ? NULL : $9->host, $4,
4216 $5.src_os, $5.src.host, $5.src.port, $5.dst.host,
4217 $5.dst.port, 0, 0, 0, "");
4222 binatrule : no BINAT natpasslog interface af proto FROM ipspec toipspec tag
4223 tagged rtable redirection
4225 struct pf_rule binat;
4226 struct pf_pooladdr *pa;
4228 if (check_rulestate(PFCTL_STATE_NAT))
4230 if (disallow_urpf_failed($9, "\"urpf-failed\" is not "
4231 "permitted as a binat destination"))
4234 memset(&binat, 0, sizeof(binat));
4237 yyerror("\"pass\" not valid with \"no\"");
4241 binat.action = PF_NOBINAT;
4243 binat.action = PF_BINAT;
4244 binat.natpass = $3.b1;
4246 binat.logif = $3.w2;
4248 if (!binat.af && $8 != NULL && $8->af)
4250 if (!binat.af && $9 != NULL && $9->af)
4253 if (!binat.af && $13 != NULL && $13->host)
4254 binat.af = $13->host->af;
4256 yyerror("address family (inet/inet6) "
4262 memcpy(binat.ifname, $4->ifname,
4263 sizeof(binat.ifname));
4264 binat.ifnot = $4->not;
4269 if (strlcpy(binat.tagname, $10,
4270 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
4271 yyerror("tag too long, max %u chars",
4272 PF_TAG_NAME_SIZE - 1);
4276 if (strlcpy(binat.match_tagname, $11.name,
4277 PF_TAG_NAME_SIZE) >= PF_TAG_NAME_SIZE) {
4278 yyerror("tag too long, max %u chars",
4279 PF_TAG_NAME_SIZE - 1);
4282 binat.match_tag_not = $11.neg;
4283 binat.rtableid = $12;
4286 binat.proto = $6->proto;
4290 if ($8 != NULL && disallow_table($8, "invalid use of "
4291 "table <%s> as the source address of a binat rule"))
4293 if ($8 != NULL && disallow_alias($8, "invalid use of "
4294 "interface (%s) as the source address of a binat "
4297 if ($13 != NULL && $13->host != NULL && disallow_table(
4298 $13->host, "invalid use of table <%s> as the "
4299 "redirect address of a binat rule"))
4301 if ($13 != NULL && $13->host != NULL && disallow_alias(
4302 $13->host, "invalid use of interface (%s) as the "
4303 "redirect address of a binat rule"))
4308 yyerror("multiple binat ip addresses");
4311 if ($8->addr.type == PF_ADDR_DYNIFTL)
4313 if ($8->af != binat.af) {
4314 yyerror("binat ip versions must match");
4317 if (check_netmask($8, binat.af))
4319 memcpy(&binat.src.addr, &$8->addr,
4320 sizeof(binat.src.addr));
4325 yyerror("multiple binat ip addresses");
4328 if ($9->af != binat.af && $9->af) {
4329 yyerror("binat ip versions must match");
4332 if (check_netmask($9, binat.af))
4334 memcpy(&binat.dst.addr, &$9->addr,
4335 sizeof(binat.dst.addr));
4336 binat.dst.neg = $9->not;
4340 if (binat.action == PF_NOBINAT) {
4342 yyerror("'no binat' rule does not need"
4347 if ($13 == NULL || $13->host == NULL) {
4348 yyerror("'binat' rule requires"
4353 remove_invalid_hosts(&$13->host, &binat.af);
4354 if (invalid_redirect($13->host, binat.af))
4356 if ($13->host->next != NULL) {
4357 yyerror("binat rule must redirect to "
4358 "a single address");
4361 if (check_netmask($13->host, binat.af))
4364 if (!PF_AZERO(&binat.src.addr.v.a.mask,
4366 !PF_AEQ(&binat.src.addr.v.a.mask,
4367 &$13->host->addr.v.a.mask, binat.af)) {
4368 yyerror("'binat' source mask and "
4369 "redirect mask must be the same");
4373 TAILQ_INIT(&binat.rpool.list);
4374 pa = calloc(1, sizeof(struct pf_pooladdr));
4376 err(1, "binat: calloc");
4377 pa->addr = $13->host->addr;
4379 TAILQ_INSERT_TAIL(&binat.rpool.list,
4385 pfctl_add_rule(pf, &binat, "");
4389 tag : /* empty */ { $$ = NULL; }
4390 | TAG STRING { $$ = $2; }
4393 tagged : /* empty */ { $$.neg = 0; $$.name = NULL; }
4394 | not TAGGED string { $$.neg = $1; $$.name = $3; }
4397 rtable : /* empty */ { $$ = -1; }
4399 if ($2 < 0 || $2 > rt_tableid_max()) {
4400 yyerror("invalid rtable id");
4407 route_host : STRING {
4408 $$ = calloc(1, sizeof(struct node_host));
4410 err(1, "route_host: calloc");
4411 $$->ifname = strdup($1);
4412 set_ipmask($$, 128);
4416 | '(' STRING host ')' {
4417 struct node_host *n;
4420 for (n = $3; n != NULL; n = n->next)
4421 n->ifname = strdup($2);
4425 route_host_list : route_host optnl { $$ = $1; }
4426 | route_host_list comma route_host optnl {
4429 if ($1->af != $3->af) {
4430 yyerror("all pool addresses must be in the "
4431 "same address family");
4434 $1->tail->next = $3;
4435 $1->tail = $3->tail;
4440 routespec : route_host { $$ = $1; }
4441 | '{' optnl route_host_list '}' { $$ = $3; }
4444 route : /* empty */ {
4450 /* backwards-compat */
4455 | ROUTETO routespec pool_opts {
4458 $$.pool_opts = $3.type | $3.opts;
4462 | REPLYTO routespec pool_opts {
4465 $$.pool_opts = $3.type | $3.opts;
4469 | DUPTO routespec pool_opts {
4472 $$.pool_opts = $3.type | $3.opts;
4478 timeout_spec : STRING NUMBER
4480 if (check_rulestate(PFCTL_STATE_OPTION)) {
4484 if ($2 < 0 || $2 > UINT_MAX) {
4485 yyerror("only positive values permitted");
4488 if (pfctl_set_timeout(pf, $1, $2, 0) != 0) {
4489 yyerror("unknown timeout %s", $1);
4496 if (check_rulestate(PFCTL_STATE_OPTION))
4498 if ($2 < 0 || $2 > UINT_MAX) {
4499 yyerror("only positive values permitted");
4502 if (pfctl_set_timeout(pf, "interval", $2, 0) != 0)
4507 timeout_list : timeout_list comma timeout_spec optnl
4508 | timeout_spec optnl
4511 limit_spec : STRING NUMBER
4513 if (check_rulestate(PFCTL_STATE_OPTION)) {
4517 if ($2 < 0 || $2 > UINT_MAX) {
4518 yyerror("only positive values permitted");
4521 if (pfctl_set_limit(pf, $1, $2) != 0) {
4522 yyerror("unable to set limit %s %u", $1, $2);
4530 limit_list : limit_list comma limit_spec optnl
4538 yesno : NO { $$ = 0; }
4540 if (!strcmp($1, "yes"))
4543 yyerror("invalid value '%s', expected 'yes' "
4552 unaryop : '=' { $$ = PF_OP_EQ; }
4553 | '!' '=' { $$ = PF_OP_NE; }
4554 | '<' '=' { $$ = PF_OP_LE; }
4555 | '<' { $$ = PF_OP_LT; }
4556 | '>' '=' { $$ = PF_OP_GE; }
4557 | '>' { $$ = PF_OP_GT; }
4563 yyerror(const char *fmt, ...)
4569 fprintf(stderr, "%s:%d: ", file->name, yylval.lineno);
4570 vfprintf(stderr, fmt, ap);
4571 fprintf(stderr, "\n");
4577 disallow_table(struct node_host *h, const char *fmt)
4579 for (; h != NULL; h = h->next)
4580 if (h->addr.type == PF_ADDR_TABLE) {
4581 yyerror(fmt, h->addr.v.tblname);
4588 disallow_urpf_failed(struct node_host *h, const char *fmt)
4590 for (; h != NULL; h = h->next)
4591 if (h->addr.type == PF_ADDR_URPFFAILED) {
4599 disallow_alias(struct node_host *h, const char *fmt)
4601 for (; h != NULL; h = h->next)
4602 if (DYNIF_MULTIADDR(h->addr)) {
4603 yyerror(fmt, h->addr.v.tblname);
4610 rule_consistent(struct pf_rule *r, int anchor_call)
4614 switch (r->action) {
4619 problems = filter_consistent(r, anchor_call);
4623 problems = nat_consistent(r);
4627 problems = rdr_consistent(r);
4638 filter_consistent(struct pf_rule *r, int anchor_call)
4642 if (r->proto != IPPROTO_TCP && r->proto != IPPROTO_UDP &&
4643 (r->src.port_op || r->dst.port_op)) {
4644 yyerror("port only applies to tcp/udp");
4647 if (r->proto != IPPROTO_ICMP && r->proto != IPPROTO_ICMPV6 &&
4648 (r->type || r->code)) {
4649 yyerror("icmp-type/code only applies to icmp");
4652 if (!r->af && (r->type || r->code)) {
4653 yyerror("must indicate address family with icmp-type/code");
4656 if (r->overload_tblname[0] &&
4657 r->max_src_conn == 0 && r->max_src_conn_rate.seconds == 0) {
4658 yyerror("'overload' requires 'max-src-conn' "
4659 "or 'max-src-conn-rate'");
4662 if ((r->proto == IPPROTO_ICMP && r->af == AF_INET6) ||
4663 (r->proto == IPPROTO_ICMPV6 && r->af == AF_INET)) {
4664 yyerror("proto %s doesn't match address family %s",
4665 r->proto == IPPROTO_ICMP ? "icmp" : "icmp6",
4666 r->af == AF_INET ? "inet" : "inet6");
4669 if (r->allow_opts && r->action != PF_PASS) {
4670 yyerror("allow-opts can only be specified for pass rules");
4673 if (r->rule_flag & PFRULE_FRAGMENT && (r->src.port_op ||
4674 r->dst.port_op || r->flagset || r->type || r->code)) {
4675 yyerror("fragments can be filtered only on IP header fields");
4678 if (r->rule_flag & PFRULE_RETURNRST && r->proto != IPPROTO_TCP) {
4679 yyerror("return-rst can only be applied to TCP rules");
4682 if (r->max_src_nodes && !(r->rule_flag & PFRULE_RULESRCTRACK)) {
4683 yyerror("max-src-nodes requires 'source-track rule'");
4686 if (r->action == PF_DROP && r->keep_state) {
4687 yyerror("keep state on block rules doesn't make sense");
4690 if (r->rule_flag & PFRULE_STATESLOPPY &&
4691 (r->keep_state == PF_STATE_MODULATE ||
4692 r->keep_state == PF_STATE_SYNPROXY)) {
4693 yyerror("sloppy state matching cannot be used with "
4694 "synproxy state or modulate state");
4701 nat_consistent(struct pf_rule *r)
4703 return (0); /* yeah! */
4707 rdr_consistent(struct pf_rule *r)
4711 if (r->proto != IPPROTO_TCP && r->proto != IPPROTO_UDP) {
4712 if (r->src.port_op) {
4713 yyerror("src port only applies to tcp/udp");
4716 if (r->dst.port_op) {
4717 yyerror("dst port only applies to tcp/udp");
4720 if (r->rpool.proxy_port[0]) {
4721 yyerror("rpool port only applies to tcp/udp");
4725 if (r->dst.port_op &&
4726 r->dst.port_op != PF_OP_EQ && r->dst.port_op != PF_OP_RRG) {
4727 yyerror("invalid port operator for rdr destination port");
4734 process_tabledef(char *name, struct table_opts *opts)
4736 struct pfr_buffer ab;
4737 struct node_tinit *ti;
4738 unsigned long maxcount;
4739 size_t s = sizeof(maxcount);
4741 bzero(&ab, sizeof(ab));
4742 ab.pfrb_type = PFRB_ADDRS;
4743 SIMPLEQ_FOREACH(ti, &opts->init_nodes, entries) {
4745 if (pfr_buf_load(&ab, ti->file, 0, append_addr)) {
4747 yyerror("cannot load \"%s\": %s",
4748 ti->file, strerror(errno));
4750 yyerror("file \"%s\" contains bad data",
4755 if (append_addr_host(&ab, ti->host, 0, 0)) {
4756 yyerror("cannot create address buffer: %s",
4761 if (pf->opts & PF_OPT_VERBOSE)
4762 print_tabledef(name, opts->flags, opts->init_addr,
4764 if (!(pf->opts & PF_OPT_NOACTION) &&
4765 pfctl_define_table(name, opts->flags, opts->init_addr,
4766 pf->anchor->name, &ab, pf->anchor->ruleset.tticket)) {
4768 if (sysctlbyname("net.pf.request_maxcount", &maxcount, &s,
4772 if (ab.pfrb_size > maxcount)
4773 yyerror("cannot define table %s: too many elements.\n"
4774 "Consider increasing net.pf.request_maxcount.",
4777 yyerror("cannot define table %s: %s", name,
4778 pfr_strerror(errno));
4795 /* macro gore, but you should've seen the prior indentation nightmare... */
4797 #define FREE_LIST(T,r) \
4800 while (node != NULL) { \
4802 node = node->next; \
4807 #define LOOP_THROUGH(T,n,r,C) \
4811 r = calloc(1, sizeof(T)); \
4813 err(1, "LOOP: calloc"); \
4817 while (n != NULL) { \
4826 expand_label_str(char *label, size_t len, const char *srch, const char *repl)
4831 if ((tmp = calloc(1, len)) == NULL)
4832 err(1, "expand_label_str: calloc");
4834 while ((q = strstr(p, srch)) != NULL) {
4836 if ((strlcat(tmp, p, len) >= len) ||
4837 (strlcat(tmp, repl, len) >= len))
4838 errx(1, "expand_label: label too long");
4842 if (strlcat(tmp, p, len) >= len)
4843 errx(1, "expand_label: label too long");
4844 strlcpy(label, tmp, len); /* always fits */
4849 expand_label_if(const char *name, char *label, size_t len, const char *ifname)
4851 if (strstr(label, name) != NULL) {
4853 expand_label_str(label, len, name, "any");
4855 expand_label_str(label, len, name, ifname);
4860 expand_label_addr(const char *name, char *label, size_t len, sa_family_t af,
4861 struct node_host *h)
4863 char tmp[64], tmp_not[66];
4865 if (strstr(label, name) != NULL) {
4866 switch (h->addr.type) {
4867 case PF_ADDR_DYNIFTL:
4868 snprintf(tmp, sizeof(tmp), "(%s)", h->addr.v.ifname);
4871 snprintf(tmp, sizeof(tmp), "<%s>", h->addr.v.tblname);
4873 case PF_ADDR_NOROUTE:
4874 snprintf(tmp, sizeof(tmp), "no-route");
4876 case PF_ADDR_URPFFAILED:
4877 snprintf(tmp, sizeof(tmp), "urpf-failed");
4879 case PF_ADDR_ADDRMASK:
4880 if (!af || (PF_AZERO(&h->addr.v.a.addr, af) &&
4881 PF_AZERO(&h->addr.v.a.mask, af)))
4882 snprintf(tmp, sizeof(tmp), "any");
4887 if (inet_ntop(af, &h->addr.v.a.addr, a,
4889 snprintf(tmp, sizeof(tmp), "?");
4891 bits = unmask(&h->addr.v.a.mask, af);
4892 if ((af == AF_INET && bits < 32) ||
4893 (af == AF_INET6 && bits < 128))
4894 snprintf(tmp, sizeof(tmp),
4897 snprintf(tmp, sizeof(tmp),
4903 snprintf(tmp, sizeof(tmp), "?");
4908 snprintf(tmp_not, sizeof(tmp_not), "! %s", tmp);
4909 expand_label_str(label, len, name, tmp_not);
4911 expand_label_str(label, len, name, tmp);
4916 expand_label_port(const char *name, char *label, size_t len,
4917 struct node_port *port)
4919 char a1[6], a2[6], op[13] = "";
4921 if (strstr(label, name) != NULL) {
4922 snprintf(a1, sizeof(a1), "%u", ntohs(port->port[0]));
4923 snprintf(a2, sizeof(a2), "%u", ntohs(port->port[1]));
4926 else if (port->op == PF_OP_IRG)
4927 snprintf(op, sizeof(op), "%s><%s", a1, a2);
4928 else if (port->op == PF_OP_XRG)
4929 snprintf(op, sizeof(op), "%s<>%s", a1, a2);
4930 else if (port->op == PF_OP_EQ)
4931 snprintf(op, sizeof(op), "%s", a1);
4932 else if (port->op == PF_OP_NE)
4933 snprintf(op, sizeof(op), "!=%s", a1);
4934 else if (port->op == PF_OP_LT)
4935 snprintf(op, sizeof(op), "<%s", a1);
4936 else if (port->op == PF_OP_LE)
4937 snprintf(op, sizeof(op), "<=%s", a1);
4938 else if (port->op == PF_OP_GT)
4939 snprintf(op, sizeof(op), ">%s", a1);
4940 else if (port->op == PF_OP_GE)
4941 snprintf(op, sizeof(op), ">=%s", a1);
4942 expand_label_str(label, len, name, op);
4947 expand_label_proto(const char *name, char *label, size_t len, u_int8_t proto)
4949 struct protoent *pe;
4952 if (strstr(label, name) != NULL) {
4953 pe = getprotobynumber(proto);
4955 expand_label_str(label, len, name, pe->p_name);
4957 snprintf(n, sizeof(n), "%u", proto);
4958 expand_label_str(label, len, name, n);
4964 expand_label_nr(const char *name, char *label, size_t len)
4968 if (strstr(label, name) != NULL) {
4969 snprintf(n, sizeof(n), "%u", pf->anchor->match);
4970 expand_label_str(label, len, name, n);
4975 expand_label(char *label, size_t len, const char *ifname, sa_family_t af,
4976 struct node_host *src_host, struct node_port *src_port,
4977 struct node_host *dst_host, struct node_port *dst_port,
4980 expand_label_if("$if", label, len, ifname);
4981 expand_label_addr("$srcaddr", label, len, af, src_host);
4982 expand_label_addr("$dstaddr", label, len, af, dst_host);
4983 expand_label_port("$srcport", label, len, src_port);
4984 expand_label_port("$dstport", label, len, dst_port);
4985 expand_label_proto("$proto", label, len, proto);
4986 expand_label_nr("$nr", label, len);
4990 expand_altq(struct pf_altq *a, struct node_if *interfaces,
4991 struct node_queue *nqueues, struct node_queue_bw bwspec,
4992 struct node_queue_opt *opts)
4994 struct pf_altq pa, pb;
4995 char qname[PF_QNAME_SIZE];
4996 struct node_queue *n;
4997 struct node_queue_bw bw;
5000 if ((pf->loadopt & PFCTL_FLAG_ALTQ) == 0) {
5001 FREE_LIST(struct node_if, interfaces);
5003 FREE_LIST(struct node_queue, nqueues);
5007 LOOP_THROUGH(struct node_if, interface, interfaces,
5008 memcpy(&pa, a, sizeof(struct pf_altq));
5009 if (strlcpy(pa.ifname, interface->ifname,
5010 sizeof(pa.ifname)) >= sizeof(pa.ifname))
5011 errx(1, "expand_altq: strlcpy");
5013 if (interface->not) {
5014 yyerror("altq on ! <interface> is not supported");
5017 if (eval_pfaltq(pf, &pa, &bwspec, opts))
5020 if (pfctl_add_altq(pf, &pa))
5023 if (pf->opts & PF_OPT_VERBOSE) {
5024 print_altq(&pf->paltq->altq, 0,
5026 if (nqueues && nqueues->tail) {
5028 LOOP_THROUGH(struct node_queue, queue,
5038 if (pa.scheduler == ALTQT_CBQ ||
5039 pa.scheduler == ALTQT_HFSC) {
5040 /* now create a root queue */
5041 memset(&pb, 0, sizeof(struct pf_altq));
5042 if (strlcpy(qname, "root_", sizeof(qname)) >=
5044 errx(1, "expand_altq: strlcpy");
5045 if (strlcat(qname, interface->ifname,
5046 sizeof(qname)) >= sizeof(qname))
5047 errx(1, "expand_altq: strlcat");
5048 if (strlcpy(pb.qname, qname,
5049 sizeof(pb.qname)) >= sizeof(pb.qname))
5050 errx(1, "expand_altq: strlcpy");
5051 if (strlcpy(pb.ifname, interface->ifname,
5052 sizeof(pb.ifname)) >= sizeof(pb.ifname))
5053 errx(1, "expand_altq: strlcpy");
5054 pb.qlimit = pa.qlimit;
5055 pb.scheduler = pa.scheduler;
5056 bw.bw_absolute = pa.ifbandwidth;
5058 if (eval_pfqueue(pf, &pb, &bw, opts))
5061 if (pfctl_add_altq(pf, &pb))
5065 LOOP_THROUGH(struct node_queue, queue, nqueues,
5066 n = calloc(1, sizeof(struct node_queue));
5068 err(1, "expand_altq: calloc");
5069 if (pa.scheduler == ALTQT_CBQ ||
5070 pa.scheduler == ALTQT_HFSC)
5071 if (strlcpy(n->parent, qname,
5072 sizeof(n->parent)) >=
5074 errx(1, "expand_altq: strlcpy");
5075 if (strlcpy(n->queue, queue->queue,
5076 sizeof(n->queue)) >= sizeof(n->queue))
5077 errx(1, "expand_altq: strlcpy");
5078 if (strlcpy(n->ifname, interface->ifname,
5079 sizeof(n->ifname)) >= sizeof(n->ifname))
5080 errx(1, "expand_altq: strlcpy");
5081 n->scheduler = pa.scheduler;
5087 queues->tail->next = n;
5093 FREE_LIST(struct node_if, interfaces);
5095 FREE_LIST(struct node_queue, nqueues);
5101 expand_queue(struct pf_altq *a, struct node_if *interfaces,
5102 struct node_queue *nqueues, struct node_queue_bw bwspec,
5103 struct node_queue_opt *opts)
5105 struct node_queue *n, *nq;
5110 if ((pf->loadopt & PFCTL_FLAG_ALTQ) == 0) {
5111 FREE_LIST(struct node_queue, nqueues);
5115 if (queues == NULL) {
5116 yyerror("queue %s has no parent", a->qname);
5117 FREE_LIST(struct node_queue, nqueues);
5121 LOOP_THROUGH(struct node_if, interface, interfaces,
5122 LOOP_THROUGH(struct node_queue, tqueue, queues,
5123 if (!strncmp(a->qname, tqueue->queue, PF_QNAME_SIZE) &&
5124 (interface->ifname[0] == 0 ||
5125 (!interface->not && !strncmp(interface->ifname,
5126 tqueue->ifname, IFNAMSIZ)) ||
5127 (interface->not && strncmp(interface->ifname,
5128 tqueue->ifname, IFNAMSIZ)))) {
5129 /* found ourself in queues */
5132 memcpy(&pa, a, sizeof(struct pf_altq));
5134 if (pa.scheduler != ALTQT_NONE &&
5135 pa.scheduler != tqueue->scheduler) {
5136 yyerror("exactly one scheduler type "
5137 "per interface allowed");
5140 pa.scheduler = tqueue->scheduler;
5142 /* scheduler dependent error checking */
5143 switch (pa.scheduler) {
5145 if (nqueues != NULL) {
5146 yyerror("priq queues cannot "
5147 "have child queues");
5150 if (bwspec.bw_absolute > 0 ||
5151 bwspec.bw_percent < 100) {
5152 yyerror("priq doesn't take "
5161 if (strlcpy(pa.ifname, tqueue->ifname,
5162 sizeof(pa.ifname)) >= sizeof(pa.ifname))
5163 errx(1, "expand_queue: strlcpy");
5164 if (strlcpy(pa.parent, tqueue->parent,
5165 sizeof(pa.parent)) >= sizeof(pa.parent))
5166 errx(1, "expand_queue: strlcpy");
5168 if (eval_pfqueue(pf, &pa, &bwspec, opts))
5171 if (pfctl_add_altq(pf, &pa))
5174 for (nq = nqueues; nq != NULL; nq = nq->next) {
5175 if (!strcmp(a->qname, nq->queue)) {
5176 yyerror("queue cannot have "
5182 sizeof(struct node_queue));
5184 err(1, "expand_queue: calloc");
5185 if (strlcpy(n->parent, a->qname,
5186 sizeof(n->parent)) >=
5188 errx(1, "expand_queue strlcpy");
5189 if (strlcpy(n->queue, nq->queue,
5190 sizeof(n->queue)) >=
5192 errx(1, "expand_queue strlcpy");
5193 if (strlcpy(n->ifname, tqueue->ifname,
5194 sizeof(n->ifname)) >=
5196 errx(1, "expand_queue strlcpy");
5197 n->scheduler = tqueue->scheduler;
5203 queues->tail->next = n;
5207 if ((pf->opts & PF_OPT_VERBOSE) && (
5208 (found == 1 && interface->ifname[0] == 0) ||
5209 (found > 0 && interface->ifname[0] != 0))) {
5210 print_queue(&pf->paltq->altq, 0,
5211 &bwspec, interface->ifname[0] != 0,
5213 if (nqueues && nqueues->tail) {
5215 LOOP_THROUGH(struct node_queue,
5228 FREE_LIST(struct node_queue, nqueues);
5229 FREE_LIST(struct node_if, interfaces);
5232 yyerror("queue %s has no parent", a->qname);
5243 expand_rule(struct pf_rule *r,
5244 struct node_if *interfaces, struct node_host *rpool_hosts,
5245 struct node_proto *protos, struct node_os *src_oses,
5246 struct node_host *src_hosts, struct node_port *src_ports,
5247 struct node_host *dst_hosts, struct node_port *dst_ports,
5248 struct node_uid *uids, struct node_gid *gids, struct node_icmp *icmp_types,
5249 const char *anchor_call)
5251 sa_family_t af = r->af;
5252 int added = 0, error = 0;
5253 char ifname[IF_NAMESIZE];
5254 char label[PF_RULE_LABEL_SIZE];
5255 char tagname[PF_TAG_NAME_SIZE];
5256 char match_tagname[PF_TAG_NAME_SIZE];
5257 struct pf_pooladdr *pa;
5258 struct node_host *h;
5259 u_int8_t flags, flagset, keep_state;
5261 if (strlcpy(label, r->label, sizeof(label)) >= sizeof(label))
5262 errx(1, "expand_rule: strlcpy");
5263 if (strlcpy(tagname, r->tagname, sizeof(tagname)) >= sizeof(tagname))
5264 errx(1, "expand_rule: strlcpy");
5265 if (strlcpy(match_tagname, r->match_tagname, sizeof(match_tagname)) >=
5266 sizeof(match_tagname))
5267 errx(1, "expand_rule: strlcpy");
5269 flagset = r->flagset;
5270 keep_state = r->keep_state;
5272 LOOP_THROUGH(struct node_if, interface, interfaces,
5273 LOOP_THROUGH(struct node_proto, proto, protos,
5274 LOOP_THROUGH(struct node_icmp, icmp_type, icmp_types,
5275 LOOP_THROUGH(struct node_host, src_host, src_hosts,
5276 LOOP_THROUGH(struct node_port, src_port, src_ports,
5277 LOOP_THROUGH(struct node_os, src_os, src_oses,
5278 LOOP_THROUGH(struct node_host, dst_host, dst_hosts,
5279 LOOP_THROUGH(struct node_port, dst_port, dst_ports,
5280 LOOP_THROUGH(struct node_uid, uid, uids,
5281 LOOP_THROUGH(struct node_gid, gid, gids,
5284 /* for link-local IPv6 address, interface must match up */
5285 if ((r->af && src_host->af && r->af != src_host->af) ||
5286 (r->af && dst_host->af && r->af != dst_host->af) ||
5287 (src_host->af && dst_host->af &&
5288 src_host->af != dst_host->af) ||
5289 (src_host->ifindex && dst_host->ifindex &&
5290 src_host->ifindex != dst_host->ifindex) ||
5291 (src_host->ifindex && *interface->ifname &&
5292 src_host->ifindex != if_nametoindex(interface->ifname)) ||
5293 (dst_host->ifindex && *interface->ifname &&
5294 dst_host->ifindex != if_nametoindex(interface->ifname)))
5296 if (!r->af && src_host->af)
5297 r->af = src_host->af;
5298 else if (!r->af && dst_host->af)
5299 r->af = dst_host->af;
5301 if (*interface->ifname)
5302 strlcpy(r->ifname, interface->ifname,
5304 else if (if_indextoname(src_host->ifindex, ifname))
5305 strlcpy(r->ifname, ifname, sizeof(r->ifname));
5306 else if (if_indextoname(dst_host->ifindex, ifname))
5307 strlcpy(r->ifname, ifname, sizeof(r->ifname));
5309 memset(r->ifname, '\0', sizeof(r->ifname));
5311 if (strlcpy(r->label, label, sizeof(r->label)) >=
5313 errx(1, "expand_rule: strlcpy");
5314 if (strlcpy(r->tagname, tagname, sizeof(r->tagname)) >=
5316 errx(1, "expand_rule: strlcpy");
5317 if (strlcpy(r->match_tagname, match_tagname,
5318 sizeof(r->match_tagname)) >= sizeof(r->match_tagname))
5319 errx(1, "expand_rule: strlcpy");
5320 expand_label(r->label, PF_RULE_LABEL_SIZE, r->ifname, r->af,
5321 src_host, src_port, dst_host, dst_port, proto->proto);
5322 expand_label(r->tagname, PF_TAG_NAME_SIZE, r->ifname, r->af,
5323 src_host, src_port, dst_host, dst_port, proto->proto);
5324 expand_label(r->match_tagname, PF_TAG_NAME_SIZE, r->ifname,
5325 r->af, src_host, src_port, dst_host, dst_port,
5328 error += check_netmask(src_host, r->af);
5329 error += check_netmask(dst_host, r->af);
5331 r->ifnot = interface->not;
5332 r->proto = proto->proto;
5333 r->src.addr = src_host->addr;
5334 r->src.neg = src_host->not;
5335 r->src.port[0] = src_port->port[0];
5336 r->src.port[1] = src_port->port[1];
5337 r->src.port_op = src_port->op;
5338 r->dst.addr = dst_host->addr;
5339 r->dst.neg = dst_host->not;
5340 r->dst.port[0] = dst_port->port[0];
5341 r->dst.port[1] = dst_port->port[1];
5342 r->dst.port_op = dst_port->op;
5343 r->uid.op = uid->op;
5344 r->uid.uid[0] = uid->uid[0];
5345 r->uid.uid[1] = uid->uid[1];
5346 r->gid.op = gid->op;
5347 r->gid.gid[0] = gid->gid[0];
5348 r->gid.gid[1] = gid->gid[1];
5349 r->type = icmp_type->type;
5350 r->code = icmp_type->code;
5352 if ((keep_state == PF_STATE_MODULATE ||
5353 keep_state == PF_STATE_SYNPROXY) &&
5354 r->proto && r->proto != IPPROTO_TCP)
5355 r->keep_state = PF_STATE_NORMAL;
5357 r->keep_state = keep_state;
5359 if (r->proto && r->proto != IPPROTO_TCP) {
5364 r->flagset = flagset;
5366 if (icmp_type->proto && r->proto != icmp_type->proto) {
5367 yyerror("icmp-type mismatch");
5371 if (src_os && src_os->os) {
5372 r->os_fingerprint = pfctl_get_fingerprint(src_os->os);
5373 if ((pf->opts & PF_OPT_VERBOSE2) &&
5374 r->os_fingerprint == PF_OSFP_NOMATCH)
5376 "warning: unknown '%s' OS fingerprint\n",
5379 r->os_fingerprint = PF_OSFP_ANY;
5382 TAILQ_INIT(&r->rpool.list);
5383 for (h = rpool_hosts; h != NULL; h = h->next) {
5384 pa = calloc(1, sizeof(struct pf_pooladdr));
5386 err(1, "expand_rule: calloc");
5388 if (h->ifname != NULL) {
5389 if (strlcpy(pa->ifname, h->ifname,
5390 sizeof(pa->ifname)) >=
5392 errx(1, "expand_rule: strlcpy");
5395 TAILQ_INSERT_TAIL(&r->rpool.list, pa, entries);
5398 if (rule_consistent(r, anchor_call[0]) < 0 || error)
5399 yyerror("skipping rule due to errors");
5401 r->nr = pf->astack[pf->asd]->match++;
5402 pfctl_add_rule(pf, r, anchor_call);
5408 FREE_LIST(struct node_if, interfaces);
5409 FREE_LIST(struct node_proto, protos);
5410 FREE_LIST(struct node_host, src_hosts);
5411 FREE_LIST(struct node_port, src_ports);
5412 FREE_LIST(struct node_os, src_oses);
5413 FREE_LIST(struct node_host, dst_hosts);
5414 FREE_LIST(struct node_port, dst_ports);
5415 FREE_LIST(struct node_uid, uids);
5416 FREE_LIST(struct node_gid, gids);
5417 FREE_LIST(struct node_icmp, icmp_types);
5418 FREE_LIST(struct node_host, rpool_hosts);
5421 yyerror("rule expands to no valid combination");
5425 expand_skip_interface(struct node_if *interfaces)
5429 if (!interfaces || (!interfaces->next && !interfaces->not &&
5430 !strcmp(interfaces->ifname, "none"))) {
5431 if (pf->opts & PF_OPT_VERBOSE)
5432 printf("set skip on none\n");
5433 errs = pfctl_set_interface_flags(pf, "", PFI_IFLAG_SKIP, 0);
5437 if (pf->opts & PF_OPT_VERBOSE)
5438 printf("set skip on {");
5439 LOOP_THROUGH(struct node_if, interface, interfaces,
5440 if (pf->opts & PF_OPT_VERBOSE)
5441 printf(" %s", interface->ifname);
5442 if (interface->not) {
5443 yyerror("skip on ! <interface> is not supported");
5446 errs += pfctl_set_interface_flags(pf,
5447 interface->ifname, PFI_IFLAG_SKIP, 1);
5449 if (pf->opts & PF_OPT_VERBOSE)
5452 FREE_LIST(struct node_if, interfaces);
5464 check_rulestate(int desired_state)
5466 if (require_order && (rulestate > desired_state)) {
5467 yyerror("Rules must be in order: options, normalization, "
5468 "queueing, translation, filtering");
5471 rulestate = desired_state;
5476 kw_cmp(const void *k, const void *e)
5478 return (strcmp(k, ((const struct keywords *)e)->k_name));
5484 /* this has to be sorted always */
5485 static const struct keywords keywords[] = {
5487 { "allow-opts", ALLOWOPTS},
5489 { "anchor", ANCHOR},
5490 { "antispoof", ANTISPOOF},
5492 { "bandwidth", BANDWIDTH},
5494 { "binat-anchor", BINATANCHOR},
5495 { "bitmask", BITMASK},
5497 { "block-policy", BLOCKPOLICY},
5498 { "buckets", BUCKETS},
5502 { "crop", FRAGCROP},
5504 { "divert-reply", DIVERTREPLY},
5505 { "divert-to", DIVERTTO},
5507 { "drop-ovl", FRAGDROP},
5509 { "fail-policy", FAILPOLICY},
5511 { "fastroute", FASTROUTE},
5512 { "file", FILENAME},
5513 { "fingerprints", FINGERPRINTS},
5515 { "floating", FLOATING},
5518 { "fragment", FRAGMENT},
5520 { "global", GLOBAL},
5524 { "hostid", HOSTID},
5525 { "icmp-type", ICMPTYPE},
5526 { "icmp6-type", ICMP6TYPE},
5527 { "if-bound", IFBOUND},
5529 { "include", INCLUDE},
5532 { "interval", INTERVAL},
5536 { "linkshare", LINKSHARE},
5539 { "loginterface", LOGINTERFACE},
5541 { "max-mss", MAXMSS},
5542 { "max-src-conn", MAXSRCCONN},
5543 { "max-src-conn-rate", MAXSRCCONNRATE},
5544 { "max-src-nodes", MAXSRCNODES},
5545 { "max-src-states", MAXSRCSTATES},
5546 { "min-ttl", MINTTL},
5547 { "modulate", MODULATE},
5549 { "nat-anchor", NATANCHOR},
5552 { "no-route", NOROUTE},
5553 { "no-sync", NOSYNC},
5555 { "optimization", OPTIMIZATION},
5558 { "overload", OVERLOAD},
5562 { "priority", PRIORITY},
5564 { "probability", PROBABILITY},
5566 { "qlimit", QLIMIT},
5569 { "random", RANDOM},
5570 { "random-id", RANDOMID},
5572 { "rdr-anchor", RDRANCHOR},
5573 { "realtime", REALTIME},
5574 { "reassemble", REASSEMBLE},
5575 { "reply-to", REPLYTO},
5576 { "require-order", REQUIREORDER},
5577 { "return", RETURN},
5578 { "return-icmp", RETURNICMP},
5579 { "return-icmp6", RETURNICMP6},
5580 { "return-rst", RETURNRST},
5581 { "round-robin", ROUNDROBIN},
5583 { "route-to", ROUTETO},
5584 { "rtable", RTABLE},
5586 { "ruleset-optimization", RULESET_OPTIMIZATION},
5589 { "set-tos", SETTOS},
5591 { "sloppy", SLOPPY},
5592 { "source-hash", SOURCEHASH},
5593 { "source-track", SOURCETRACK},
5595 { "state-defaults", STATEDEFAULTS},
5596 { "state-policy", STATEPOLICY},
5597 { "static-port", STATICPORT},
5598 { "sticky-address", STICKYADDRESS},
5599 { "synproxy", SYNPROXY},
5602 { "tagged", TAGGED},
5603 { "target", TARGET},
5604 { "tbrsize", TBRSIZE},
5605 { "timeout", TIMEOUT},
5609 { "upperlimit", UPPERLIMIT},
5610 { "urpf-failed", URPFFAILED},
5613 const struct keywords *p;
5615 p = bsearch(s, keywords, sizeof(keywords)/sizeof(keywords[0]),
5616 sizeof(keywords[0]), kw_cmp);
5620 fprintf(stderr, "%s: %d\n", s, p->k_val);
5624 fprintf(stderr, "string: %s\n", s);
5629 #define MAXPUSHBACK 128
5631 static char *parsebuf;
5632 static int parseindex;
5633 static char pushback_buffer[MAXPUSHBACK];
5634 static int pushback_index = 0;
5642 /* Read character from the parsebuffer instead of input. */
5643 if (parseindex >= 0) {
5644 c = parsebuf[parseindex++];
5653 return (pushback_buffer[--pushback_index]);
5656 if ((c = getc(file->stream)) == EOF) {
5657 yyerror("reached end of file while parsing quoted string");
5658 if (popfile() == EOF)
5665 while ((c = getc(file->stream)) == '\\') {
5666 next = getc(file->stream);
5671 yylval.lineno = file->lineno;
5676 if (popfile() == EOF)
5678 c = getc(file->stream);
5690 if (parseindex >= 0)
5693 if (pushback_index < MAXPUSHBACK-1)
5694 return (pushback_buffer[pushback_index++] = c);
5706 /* skip to either EOF or the first real EOL */
5709 c = pushback_buffer[--pushback_index];
5727 int quotec, next, c;
5732 while ((c = lgetc(0)) == ' ' || c == '\t')
5735 yylval.lineno = file->lineno;
5737 while ((c = lgetc(0)) != '\n' && c != EOF)
5739 if (c == '$' && parsebuf == NULL) {
5741 if ((c = lgetc(0)) == EOF)
5744 if (p + 1 >= buf + sizeof(buf) - 1) {
5745 yyerror("string too long");
5748 if (isalnum(c) || c == '_') {
5758 yyerror("macro '%s' not defined", buf);
5771 if ((c = lgetc(quotec)) == EOF)
5776 } else if (c == '\\') {
5777 if ((next = lgetc(quotec)) == EOF)
5779 if (next == quotec || c == ' ' || c == '\t')
5781 else if (next == '\n') {
5787 } else if (c == quotec) {
5791 if (p + 1 >= buf + sizeof(buf) - 1) {
5792 yyerror("string too long");
5797 yylval.v.string = strdup(buf);
5798 if (yylval.v.string == NULL)
5799 err(1, "yylex: strdup");
5804 yylval.v.i = PF_OP_XRG;
5805 return (PORTBINARY);
5812 yylval.v.i = PF_OP_IRG;
5813 return (PORTBINARY);
5825 #define allowed_to_end_number(x) \
5826 (isspace(x) || x == ')' || x ==',' || x == '/' || x == '}' || x == '=')
5828 if (c == '-' || isdigit(c)) {
5831 if ((unsigned)(p-buf) >= sizeof(buf)) {
5832 yyerror("string too long");
5835 } while ((c = lgetc(0)) != EOF && isdigit(c));
5837 if (p == buf + 1 && buf[0] == '-')
5839 if (c == EOF || allowed_to_end_number(c)) {
5840 const char *errstr = NULL;
5843 yylval.v.number = strtonum(buf, LLONG_MIN,
5844 LLONG_MAX, &errstr);
5846 yyerror("\"%s\" invalid number: %s",
5861 #define allowed_in_string(x) \
5862 (isalnum(x) || (ispunct(x) && x != '(' && x != ')' && \
5863 x != '{' && x != '}' && x != '<' && x != '>' && \
5864 x != '!' && x != '=' && x != '/' && x != '#' && \
5867 if (isalnum(c) || c == ':' || c == '_') {
5870 if ((unsigned)(p-buf) >= sizeof(buf)) {
5871 yyerror("string too long");
5874 } while ((c = lgetc(0)) != EOF && (allowed_in_string(c)));
5877 if ((token = lookup(buf)) == STRING)
5878 if ((yylval.v.string = strdup(buf)) == NULL)
5879 err(1, "yylex: strdup");
5883 yylval.lineno = file->lineno;
5892 check_file_secrecy(int fd, const char *fname)
5896 if (fstat(fd, &st)) {
5897 warn("cannot stat %s", fname);
5900 if (st.st_uid != 0 && st.st_uid != getuid()) {
5901 warnx("%s: owner not root or current user", fname);
5904 if (st.st_mode & (S_IRWXG | S_IRWXO)) {
5905 warnx("%s: group/world readable/writeable", fname);
5912 pushfile(const char *name, int secret)
5916 if ((nfile = calloc(1, sizeof(struct file))) == NULL ||
5917 (nfile->name = strdup(name)) == NULL) {
5921 if (TAILQ_FIRST(&files) == NULL && strcmp(nfile->name, "-") == 0) {
5922 nfile->stream = stdin;
5924 if ((nfile->name = strdup("stdin")) == NULL) {
5929 } else if ((nfile->stream = fopen(nfile->name, "r")) == NULL) {
5930 warn("%s", nfile->name);
5934 } else if (secret &&
5935 check_file_secrecy(fileno(nfile->stream), nfile->name)) {
5936 fclose(nfile->stream);
5942 TAILQ_INSERT_TAIL(&files, nfile, entry);
5951 if ((prev = TAILQ_PREV(file, files, entry)) != NULL) {
5952 prev->errors += file->errors;
5953 TAILQ_REMOVE(&files, file, entry);
5954 fclose(file->stream);
5964 parse_config(char *filename, struct pfctl *xpf)
5971 rulestate = PFCTL_STATE_NONE;
5972 returnicmpdefault = (ICMP_UNREACH << 8) | ICMP_UNREACH_PORT;
5973 returnicmp6default =
5974 (ICMP6_DST_UNREACH << 8) | ICMP6_DST_UNREACH_NOPORT;
5975 blockpolicy = PFRULE_DROP;
5976 failpolicy = PFRULE_DROP;
5979 if ((file = pushfile(filename, 0)) == NULL) {
5980 warn("cannot open the main config file!");
5985 errors = file->errors;
5988 /* Free macros and check which have not been used. */
5989 while ((sym = TAILQ_FIRST(&symhead))) {
5990 if ((pf->opts & PF_OPT_VERBOSE2) && !sym->used)
5991 fprintf(stderr, "warning: macro '%s' not "
5992 "used\n", sym->nam);
5995 TAILQ_REMOVE(&symhead, sym, entry);
5999 return (errors ? -1 : 0);
6003 symset(const char *nam, const char *val, int persist)
6007 for (sym = TAILQ_FIRST(&symhead); sym && strcmp(nam, sym->nam);
6008 sym = TAILQ_NEXT(sym, entry))
6012 if (sym->persist == 1)
6017 TAILQ_REMOVE(&symhead, sym, entry);
6021 if ((sym = calloc(1, sizeof(*sym))) == NULL)
6024 sym->nam = strdup(nam);
6025 if (sym->nam == NULL) {
6029 sym->val = strdup(val);
6030 if (sym->val == NULL) {
6036 sym->persist = persist;
6037 TAILQ_INSERT_TAIL(&symhead, sym, entry);
6042 pfctl_cmdline_symset(char *s)
6047 if ((val = strrchr(s, '=')) == NULL)
6050 if ((sym = malloc(strlen(s) - strlen(val) + 1)) == NULL)
6051 err(1, "pfctl_cmdline_symset: malloc");
6053 strlcpy(sym, s, strlen(s) - strlen(val) + 1);
6055 ret = symset(sym, val + 1, 1);
6062 symget(const char *nam)
6066 TAILQ_FOREACH(sym, &symhead, entry)
6067 if (strcmp(nam, sym->nam) == 0) {
6075 mv_rules(struct pf_ruleset *src, struct pf_ruleset *dst)
6080 for (i = 0; i < PF_RULESET_MAX; ++i) {
6081 while ((r = TAILQ_FIRST(src->rules[i].active.ptr))
6083 TAILQ_REMOVE(src->rules[i].active.ptr, r, entries);
6084 TAILQ_INSERT_TAIL(dst->rules[i].active.ptr, r, entries);
6085 dst->anchor->match++;
6087 src->anchor->match = 0;
6088 while ((r = TAILQ_FIRST(src->rules[i].inactive.ptr))
6090 TAILQ_REMOVE(src->rules[i].inactive.ptr, r, entries);
6091 TAILQ_INSERT_TAIL(dst->rules[i].inactive.ptr,
6098 decide_address_family(struct node_host *n, sa_family_t *af)
6100 if (*af != 0 || n == NULL)
6103 while ((n = n->next) != NULL) {
6112 remove_invalid_hosts(struct node_host **nh, sa_family_t *af)
6114 struct node_host *n = *nh, *prev = NULL;
6117 if (*af && n->af && n->af != *af) {
6118 /* unlink and free n */
6119 struct node_host *next = n->next;
6121 /* adjust tail pointer */
6122 if (n == (*nh)->tail)
6124 /* adjust previous node's next pointer */
6130 if (n->ifname != NULL)
6144 invalid_redirect(struct node_host *nh, sa_family_t af)
6147 struct node_host *n;
6149 /* tables and dyniftl are ok without an address family */
6150 for (n = nh; n != NULL; n = n->next) {
6151 if (n->addr.type != PF_ADDR_TABLE &&
6152 n->addr.type != PF_ADDR_DYNIFTL) {
6153 yyerror("address family not given and "
6154 "translation address expands to multiple "
6155 "address families");
6161 yyerror("no translation address with matching address family "
6169 atoul(char *s, u_long *ulvalp)
6175 ulval = strtoul(s, &ep, 0);
6176 if (s[0] == '\0' || *ep != '\0')
6178 if (errno == ERANGE && ulval == ULONG_MAX)
6190 if (atoul(n, &ulval) == 0) {
6191 if (ulval > 65535) {
6192 yyerror("illegal port value %lu", ulval);
6195 return (htons(ulval));
6197 s = getservbyname(n, "tcp");
6199 s = getservbyname(n, "udp");
6201 yyerror("unknown port %s", n);
6209 rule_label(struct pf_rule *r, char *s)
6212 if (strlcpy(r->label, s, sizeof(r->label)) >=
6214 yyerror("rule label too long (max %d chars)",
6215 sizeof(r->label)-1);
6223 parseicmpspec(char *w, sa_family_t af)
6225 const struct icmpcodeent *p;
6230 icmptype = returnicmpdefault >> 8;
6232 icmptype = returnicmp6default >> 8;
6234 if (atoul(w, &ulval) == -1) {
6235 if ((p = geticmpcodebyname(icmptype, w, af)) == NULL) {
6236 yyerror("unknown icmp code %s", w);
6242 yyerror("invalid icmp code %lu", ulval);
6245 return (icmptype << 8 | ulval);
6249 parseport(char *port, struct range *r, int extensions)
6251 char *p = strchr(port, ':');
6254 if ((r->a = getservice(port)) == -1)
6260 if ((extensions & PPORT_STAR) && !strcmp(p+1, "*")) {
6262 if ((r->a = getservice(port)) == -1)
6268 if ((extensions & PPORT_RANGE)) {
6270 if ((r->a = getservice(port)) == -1 ||
6271 (r->b = getservice(p)) == -1)
6284 pfctl_load_anchors(int dev, struct pfctl *pf, struct pfr_buffer *trans)
6286 struct loadanchors *la;
6288 TAILQ_FOREACH(la, &loadanchorshead, entries) {
6289 if (pf->opts & PF_OPT_VERBOSE)
6290 fprintf(stderr, "\nLoading anchor %s from %s\n",
6291 la->anchorname, la->filename);
6292 if (pfctl_rules(dev, la->filename, pf->opts, pf->optimize,
6293 la->anchorname, trans) == -1)
6301 kw_casecmp(const void *k, const void *e)
6303 return (strcasecmp(k, ((const struct keywords *)e)->k_name));
6307 map_tos(char *s, int *val)
6309 /* DiffServ Codepoints and other TOS mappings */
6310 const struct keywords toswords[] = {
6311 { "af11", IPTOS_DSCP_AF11 },
6312 { "af12", IPTOS_DSCP_AF12 },
6313 { "af13", IPTOS_DSCP_AF13 },
6314 { "af21", IPTOS_DSCP_AF21 },
6315 { "af22", IPTOS_DSCP_AF22 },
6316 { "af23", IPTOS_DSCP_AF23 },
6317 { "af31", IPTOS_DSCP_AF31 },
6318 { "af32", IPTOS_DSCP_AF32 },
6319 { "af33", IPTOS_DSCP_AF33 },
6320 { "af41", IPTOS_DSCP_AF41 },
6321 { "af42", IPTOS_DSCP_AF42 },
6322 { "af43", IPTOS_DSCP_AF43 },
6323 { "critical", IPTOS_PREC_CRITIC_ECP },
6324 { "cs0", IPTOS_DSCP_CS0 },
6325 { "cs1", IPTOS_DSCP_CS1 },
6326 { "cs2", IPTOS_DSCP_CS2 },
6327 { "cs3", IPTOS_DSCP_CS3 },
6328 { "cs4", IPTOS_DSCP_CS4 },
6329 { "cs5", IPTOS_DSCP_CS5 },
6330 { "cs6", IPTOS_DSCP_CS6 },
6331 { "cs7", IPTOS_DSCP_CS7 },
6332 { "ef", IPTOS_DSCP_EF },
6333 { "inetcontrol", IPTOS_PREC_INTERNETCONTROL },
6334 { "lowdelay", IPTOS_LOWDELAY },
6335 { "netcontrol", IPTOS_PREC_NETCONTROL },
6336 { "reliability", IPTOS_RELIABILITY },
6337 { "throughput", IPTOS_THROUGHPUT }
6339 const struct keywords *p;
6341 p = bsearch(s, toswords, sizeof(toswords)/sizeof(toswords[0]),
6342 sizeof(toswords[0]), kw_casecmp);
6352 rt_tableid_max(void)
6356 size_t l = sizeof(fibs);
6358 if (sysctlbyname("net.fibs", &fibs, &l, NULL, 0) == -1)
6359 fibs = 16; /* XXX RT_MAXFIBS, at least limit it some. */
6361 * As the OpenBSD code only compares > and not >= we need to adjust
6362 * here given we only accept values of 0..n and want to avoid #ifdefs
6367 return (RT_TABLEID_MAX);