1 /* $KAME: parser.y,v 1.8 2000/11/08 03:03:34 jinmei Exp $ */
4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the project nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * $FreeBSD: src/usr.sbin/rrenumd/parser.y,v 1.1.2.2 2001/07/03 11:02:10 ume Exp $
32 * $DragonFly: src/usr.sbin/rrenumd/parser.y,v 1.4 2004/02/10 02:59:43 rob Exp $
36 #include <sys/param.h>
37 #include <sys/ioctl.h>
38 #include <sys/socket.h>
40 #include <sys/queue.h>
43 #if defined(__DragonFly__)
44 #include <net/if_var.h>
45 #endif /* __DragonFly__ */
47 #include <netinet/in.h>
48 #include <netinet/in_var.h>
49 #include <netinet/icmp6.h>
57 struct config_is_set {
61 struct dst_list *dl_head;
62 struct payload_list *pl_head, ple_cur;
64 char errbuf[LINE_MAX];
67 extern void yyerror(const char *s);
68 extern int yylex(void);
69 static struct payload_list * pllist_lookup(int seqnum);
70 static void pllist_enqueue(struct payload_list *pl_entry);
72 #define MAX_RETRYNUM 10 /* upper limit of retry in this rrenumd program */
73 #define MAX_SEQNUM 256 /* upper limit of seqnum in this rrenumd program */
85 struct in6_addr addr6;
91 struct payload_list *pl;
95 %token <num> ADD CHANGE SETGLOBAL
96 %token DEBUG_CMD DEST_CMD RETRY_CMD SEQNUM_CMD
97 %token MATCH_PREFIX_CMD MAXLEN_CMD MINLEN_CMD
98 %token USE_PREFIX_CMD KEEPLEN_CMD
99 %token VLTIME_CMD PLTIME_CMD
100 %token RAF_ONLINK_CMD RAF_AUTO_CMD RAF_DECRVALID_CMD RAF_DECRPREFD_CMD
101 %token <num> DAYS HOURS MINUTES SECONDS INFINITY
103 %token BCL ECL EOS ERROR
104 %token <cs> NAME HOSTNAME QSTRING DECSTRING
105 %token <addr4> IPV4ADDR
106 %token <addr6> IPV6ADDR
107 %token <num> PREFIXLEN
109 %type <num> retrynum seqnum rrenum_cmd
110 %type <num> prefixlen maxlen minlen keeplen vltime pltime
111 %type <num> lifetime days hours minutes seconds
112 %type <num> decstring
113 %type <num> raf_onlink raf_auto raf_decrvalid raf_decrprefd flag
114 %type <dl> dest_addrs dest_addr sin sin6
115 %type <pl> rrenum_statement
117 %type <prefix> prefixval
127 | statements statement
132 | destination_statement
133 | rrenum_statement_without_seqnum
134 | rrenum_statement_with_seqnum
151 destination_statement:
152 DEST_CMD dest_addrs retrynum EOS
161 | dest_addrs dest_addr
179 struct sockaddr_in6 *sin6;
181 sin6 = (struct sockaddr_in6 *)$1->dl_dst;
182 sin6->sin6_scope_id = if_nametoindex($2.cp);
188 struct sockaddr_storage *ss;
189 struct addrinfo hints, *res;
192 memset(&hints, 0, sizeof(hints));
193 hints.ai_flags = AI_CANONNAME;
194 hints.ai_family = AF_UNSPEC;
195 hints.ai_socktype = SOCK_RAW;
196 hints.ai_protocol = 0;
197 error = getaddrinfo($1.cp, 0, &hints, &res);
199 snprintf(errbuf, sizeof(errbuf),
200 "name resolution failed for %s:%s",
201 $1.cp, gai_strerror(error));
204 ss = (struct sockaddr_storage *)malloc(sizeof(*ss));
205 memset(ss, 0, sizeof(*ss));
206 memcpy(ss, res->ai_addr, res->ai_addr->sa_len);
209 $$ = (struct dst_list *)
210 malloc(sizeof(struct dst_list));
211 memset($$, 0, sizeof(struct dst_list));
212 $$->dl_dst = (struct sockaddr *)ss;
219 struct sockaddr_in *sin;
221 sin = (struct sockaddr_in *)malloc(sizeof(*sin));
222 memset(sin, 0, sizeof(*sin));
223 sin->sin_len = sizeof(*sin);
224 sin->sin_family = AF_INET;
227 $$ = (struct dst_list *)
228 malloc(sizeof(struct dst_list));
229 memset($$, 0, sizeof(struct dst_list));
230 $$->dl_dst = (struct sockaddr *)sin;
237 struct sockaddr_in6 *sin6;
239 sin6 = (struct sockaddr_in6 *)malloc(sizeof(*sin6));
240 memset(sin6, 0, sizeof(*sin6));
241 sin6->sin6_len = sizeof(*sin6);
242 sin6->sin6_family = AF_INET6;
243 sin6->sin6_addr = $1;
245 $$ = (struct dst_list *)
246 malloc(sizeof(struct dst_list));
247 memset($$, 0, sizeof(struct dst_list));
248 $$->dl_dst = (struct sockaddr *)sin6;
254 $$.cp = strdup($1.cp);
259 $1.cp[$1.len - 1] = 0;
260 $$.cp = strdup(&$1.cp[1]);
270 | RETRY_CMD decstring
272 if ($2 > MAX_RETRYNUM)
278 rrenum_statement_with_seqnum:
281 if (pllist_lookup($2)) {
282 snprintf(errbuf, sizeof(errbuf),
283 "duplicate seqnum %ld specified at %d",
288 BCL rrenum_statement EOS ECL EOS
290 $5->pl_irr.rr_seqnum = $2;
302 if ($1 > MAX_SEQNUM) {
303 snprintf(errbuf, sizeof(errbuf),
304 "seqnum %ld is illegal for this program. "
305 "should be between 0 and %d",
313 rrenum_statement_without_seqnum:
316 if (pllist_lookup(0)) {
317 snprintf(errbuf, sizeof(errbuf),
318 "duplicate seqnum %d specified at %d",
322 $1->pl_irr.rr_seqnum = 0;
328 match_prefix_definition use_prefix_definition
330 $$ = (struct payload_list *)
331 malloc(sizeof(struct payload_list));
332 memcpy($$, &ple_cur, sizeof(ple_cur));
336 match_prefix_definition:
337 rrenum_cmd MATCH_PREFIX_CMD prefixval maxlen minlen
339 struct icmp6_router_renum *irr;
340 struct rr_pco_match *rpm;
342 irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
343 rpm = (struct rr_pco_match *)(irr + 1);
344 memset(rpm, 0, sizeof(*rpm));
347 rpm->rpm_prefix = $3.addr;
348 rpm->rpm_matchlen = $3.plen;
349 rpm->rpm_maxlen = $4;
350 rpm->rpm_minlen = $5;
385 | MAXLEN_CMD decstring
398 | MINLEN_CMD decstring
406 use_prefix_definition:
409 struct icmp6_router_renum *irr;
410 struct rr_pco_match *rpm;
411 struct rr_pco_use *rpu;
413 irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
414 rpm = (struct rr_pco_match *)(irr + 1);
415 rpu = (struct rr_pco_use *)(rpm + 1);
416 memset(rpu, 0, sizeof(*rpu));
418 | USE_PREFIX_CMD prefixval keeplen use_prefix_values
420 struct icmp6_router_renum *irr;
421 struct rr_pco_match *rpm;
422 struct rr_pco_use *rpu;
424 irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
425 rpm = (struct rr_pco_match *)(irr + 1);
426 rpu = (struct rr_pco_use *)(rpm + 1);
428 rpu->rpu_prefix = $2.addr;
429 rpu->rpu_uselen = $2.plen;
430 rpu->rpu_keeplen = $3;
437 struct icmp6_router_renum *irr;
438 struct rr_pco_match *rpm;
439 struct rr_pco_use *rpu;
441 irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
442 rpm = (struct rr_pco_match *)(irr + 1);
443 rpu = (struct rr_pco_use *)(rpm + 1);
444 memset(rpu, 0, sizeof(*rpu));
446 rpu->rpu_vltime = htonl(DEF_VLTIME);
447 rpu->rpu_pltime = htonl(DEF_PLTIME);
451 | BCL vltime pltime raf_onlink raf_auto raf_decrvalid raf_decrprefd ECL
453 struct icmp6_router_renum *irr;
454 struct rr_pco_match *rpm;
455 struct rr_pco_use *rpu;
457 irr = (struct icmp6_router_renum *)&ple_cur.pl_irr;
458 rpm = (struct rr_pco_match *)(irr + 1);
459 rpu = (struct rr_pco_use *)(rpm + 1);
460 memset(rpu, 0, sizeof(*rpu));
462 rpu->rpu_vltime = $2;
463 rpu->rpu_pltime = $3;
466 ~ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
469 ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
472 ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
475 ~ICMP6_RR_PCOUSE_RAFLAGS_ONLINK;
480 ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
483 ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
486 ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
489 ~ICMP6_RR_PCOUSE_RAFLAGS_AUTO;
495 ICMP6_RR_PCOUSE_FLAGS_DECRVLTIME;
499 ICMP6_RR_PCOUSE_FLAGS_DECRPLTIME;
509 | KEEPLEN_CMD decstring
521 $$ = htonl(DEF_VLTIME);
523 | VLTIME_CMD lifetime
532 $$ = htonl(DEF_PLTIME);
534 | PLTIME_CMD lifetime
544 | RAF_ONLINK_CMD flag
566 | RAF_DECRVALID_CMD flag
577 | RAF_DECRPREFD_CMD flag
594 | days hours minutes seconds
598 d = $1 * 24 * 60 * 60;
650 static struct payload_list *
651 pllist_lookup(int seqnum)
653 struct payload_list *pl;
654 for (pl = pl_head; pl && pl->pl_irr.rr_seqnum != seqnum;
661 pllist_enqueue(struct payload_list *pl_entry)
663 struct payload_list *pl, *pl_last;
667 pl && pl->pl_irr.rr_seqnum < pl_entry->pl_irr.rr_seqnum;
668 pl_last = pl, pl = pl->pl_next)
671 pl_last->pl_next = pl_entry;