1 /* $FreeBSD$ */
2
3 /*
4 * Copyright (C) 2012 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 */
8 %{
9 #include <sys/types.h>
10 #include <sys/time.h>
11 #include <sys/param.h>
12 #include <sys/socket.h>
13 # include <sys/cdefs.h>
14 #include <sys/ioctl.h>
15
16 #include <net/if.h>
17 #include <netinet/in.h>
18
19 #include <arpa/inet.h>
20
21 #include <stdio.h>
22 #include <fcntl.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <netdb.h>
26 #include <ctype.h>
27 #include <unistd.h>
28
29 #include "ipf.h"
30 #include "netinet/ip_lookup.h"
31 #include "netinet/ip_pool.h"
32 #include "netinet/ip_htable.h"
33 #include "netinet/ip_dstlist.h"
34 #include "ippool_l.h"
35 #include "kmem.h"
36
37 #define YYDEBUG 1
38 #define YYSTACKSIZE 0x00ffffff
39
40 extern int yyparse __P((void));
41 extern int yydebug;
42 extern FILE *yyin;
43
44 static iphtable_t ipht;
45 static iphtent_t iphte;
46 static ip_pool_t iplo;
47 static ippool_dst_t ipld;
48 static ioctlfunc_t poolioctl = NULL;
49 static char poolname[FR_GROUPLEN];
50
51 static iphtent_t *add_htablehosts __P((char *));
52 static ip_pool_node_t *add_poolhosts __P((char *));
53 static ip_pool_node_t *read_whoisfile __P((char *));
54 static void setadflen __P((addrfamily_t *));
55
56 %}
57
58 %union {
59 char *str;
60 u_32_t num;
61 struct in_addr ip4;
62 struct alist_s *alist;
63 addrfamily_t adrmsk[2];
64 iphtent_t *ipe;
65 ip_pool_node_t *ipp;
66 ipf_dstnode_t *ipd;
67 addrfamily_t ipa;
68 i6addr_t ip6;
69 }
70
71 %token <num> YY_NUMBER YY_HEX
72 %token <str> YY_STR
73 %token <ip6> YY_IPV6
74 %token YY_COMMENT
75 %token YY_CMP_EQ YY_CMP_NE YY_CMP_LE YY_CMP_GE YY_CMP_LT YY_CMP_GT
76 %token YY_RANGE_OUT YY_RANGE_IN
77 %token IPT_IPF IPT_NAT IPT_COUNT IPT_AUTH IPT_IN IPT_OUT IPT_ALL
78 %token IPT_TABLE IPT_GROUPMAP IPT_HASH IPT_SRCHASH IPT_DSTHASH
79 %token IPT_ROLE IPT_TYPE IPT_TREE
80 %token IPT_GROUP IPT_SIZE IPT_SEED IPT_NUM IPT_NAME IPT_POLICY
81 %token IPT_POOL IPT_DSTLIST IPT_ROUNDROBIN
82 %token IPT_WEIGHTED IPT_RANDOM IPT_CONNECTION
83 %token IPT_WHOIS IPT_FILE
84 %type <num> role table inout unit dstopts weighting
85 %type <ipp> ipftree range addrlist
86 %type <adrmsk> addrmask
87 %type <ipe> ipfgroup ipfhash hashlist hashentry
88 %type <ipe> groupentry setgrouplist grouplist
89 %type <ipa> ipaddr mask
90 %type <ip4> ipv4
91 %type <str> number setgroup name
92 %type <ipd> dstentry dstentries dstlist
93
94 %%
95 file: line
96 | assign
97 | file line
98 | file assign
99 ;
100
101 line: table role ipftree eol { ip_pool_node_t *n;
102 iplo.ipo_unit = $2;
103 iplo.ipo_list = $3;
104 load_pool(&iplo, poolioctl);
105 while ((n = $3) != NULL) {
106 $3 = n->ipn_next;
107 free(n);
108 }
109 resetlexer();
110 use_inet6 = 0;
111 }
112 | table role ipfhash eol { iphtent_t *h;
113 ipht.iph_unit = $2;
114 ipht.iph_type = IPHASH_LOOKUP;
115 load_hash(&ipht, $3, poolioctl);
116 while ((h = $3) != NULL) {
117 $3 = h->ipe_next;
118 free(h);
119 }
120 resetlexer();
121 use_inet6 = 0;
122 }
123 | groupmap role number ipfgroup eol
124 { iphtent_t *h;
125 ipht.iph_unit = $2;
126 strncpy(ipht.iph_name, $3,
127 sizeof(ipht.iph_name));
128 ipht.iph_type = IPHASH_GROUPMAP;
129 load_hash(&ipht, $4, poolioctl);
130 while ((h = $4) != NULL) {
131 $4 = h->ipe_next;
132 free(h);
133 }
134 resetlexer();
135 use_inet6 = 0;
136 }
137 | YY_COMMENT
138 | poolline eol
139 ;
140
141 eol: ';'
142 ;
143
144 assign: YY_STR assigning YY_STR ';' { set_variable($1, $3);
145 resetlexer();
146 free($1);
147 free($3);
148 yyvarnext = 0;
149 }
150 ;
151
152 assigning:
153 '=' { yyvarnext = 1; }
154 ;
155
156 table: IPT_TABLE { bzero((char *)&ipht, sizeof(ipht));
157 bzero((char *)&iphte, sizeof(iphte));
158 bzero((char *)&iplo, sizeof(iplo));
159 bzero((char *)&ipld, sizeof(ipld));
160 *ipht.iph_name = '\0';
161 iplo.ipo_flags = IPHASH_ANON;
162 iplo.ipo_name[0] = '\0';
163 }
164 ;
165
166 groupmap:
167 IPT_GROUPMAP inout { bzero((char *)&ipht, sizeof(ipht));
168 bzero((char *)&iphte, sizeof(iphte));
169 *ipht.iph_name = '\0';
170 ipht.iph_unit = IPHASH_GROUPMAP;
171 ipht.iph_flags = $2;
172 }
173 ;
174
175 inout: IPT_IN { $$ = FR_INQUE; }
176 | IPT_OUT { $$ = FR_OUTQUE; }
177 ;
178
179 role: IPT_ROLE '=' unit { $$ = $3; }
180 ;
181
182 unit: IPT_IPF { $$ = IPL_LOGIPF; }
183 | IPT_NAT { $$ = IPL_LOGNAT; }
184 | IPT_AUTH { $$ = IPL_LOGAUTH; }
185 | IPT_COUNT { $$ = IPL_LOGCOUNT; }
186 | IPT_ALL { $$ = IPL_LOGALL; }
187 ;
188
189 ipftree:
190 IPT_TYPE '=' IPT_TREE number start addrlist end
191 { strncpy(iplo.ipo_name, $4,
192 sizeof(iplo.ipo_name));
193 $$ = $6;
194 }
195 ;
196
197 ipfhash:
198 IPT_TYPE '=' IPT_HASH number hashopts start hashlist end
199 { strncpy(ipht.iph_name, $4,
200 sizeof(ipht.iph_name));
201 $$ = $7;
202 }
203 ;
204
205 ipfgroup:
206 setgroup hashopts start grouplist end
207 { iphtent_t *e;
208 for (e = $4; e != NULL;
209 e = e->ipe_next)
210 if (e->ipe_group[0] == '\0')
211 strncpy(e->ipe_group,
212 $1,
213 FR_GROUPLEN);
214 $$ = $4;
215 free($1);
216 }
217 | hashopts start setgrouplist end
218 { $$ = $3; }
219 ;
220
221 number: IPT_NUM '=' YY_NUMBER { sprintf(poolname, "%u", $3);
222 $$ = poolname;
223 }
224 | IPT_NAME '=' YY_STR { strncpy(poolname, $3,
225 FR_GROUPLEN);
226 poolname[FR_GROUPLEN-1]='\0';
227 free($3);
228 $$ = poolname;
229 }
230 | { $$ = ""; }
231 ;
232
233 setgroup:
234 IPT_GROUP '=' YY_STR { char tmp[FR_GROUPLEN+1];
235 strncpy(tmp, $3, FR_GROUPLEN);
236 $$ = strdup(tmp);
237 free($3);
238 }
239 | IPT_GROUP '=' YY_NUMBER { char tmp[FR_GROUPLEN+1];
240 sprintf(tmp, "%u", $3);
241 $$ = strdup(tmp);
242 }
243 ;
244
245 hashopts:
246 | size
247 | seed
248 | size seed
249 ;
250
251 addrlist:
252 ';' { $$ = NULL; }
253 | range next addrlist { $$ = $1;
254 while ($1->ipn_next != NULL)
255 $1 = $1->ipn_next;
256 $1->ipn_next = $3;
257 }
258 | range next { $$ = $1; }
259 ;
260
261 grouplist:
262 ';' { $$ = NULL; }
263 | groupentry next grouplist { $$ = $1; $1->ipe_next = $3; }
264 | addrmask next grouplist { $$ = calloc(1, sizeof(iphtent_t));
265 $$->ipe_addr = $1[0].adf_addr;
266 $$->ipe_mask = $1[1].adf_addr;
267 $$->ipe_family = $1[0].adf_family;
268 $$->ipe_next = $3;
269 }
270 | groupentry next { $$ = $1; }
271 | addrmask next { $$ = calloc(1, sizeof(iphtent_t));
272 $$->ipe_addr = $1[0].adf_addr;
273 $$->ipe_mask = $1[1].adf_addr;
274 #ifdef USE_INET6
275 if (use_inet6)
276 $$->ipe_family = AF_INET6;
277 else
278 #endif
279 $$->ipe_family = AF_INET;
280 }
281 | YY_STR { $$ = add_htablehosts($1);
282 free($1);
283 }
284 ;
285
286 setgrouplist:
287 ';' { $$ = NULL; }
288 | groupentry next { $$ = $1; }
289 | groupentry next setgrouplist { $1->ipe_next = $3; $$ = $1; }
290 ;
291
292 groupentry:
293 addrmask ',' setgroup { $$ = calloc(1, sizeof(iphtent_t));
294 $$->ipe_addr = $1[0].adf_addr;
295 $$->ipe_mask = $1[1].adf_addr;
296 strncpy($$->ipe_group, $3,
297 FR_GROUPLEN);
298 #ifdef USE_INET6
299 if (use_inet6)
300 $$->ipe_family = AF_INET6;
301 else
302 #endif
303 $$->ipe_family = AF_INET;
304 free($3);
305 }
306 ;
307
308 range: addrmask { $$ = calloc(1, sizeof(*$$));
309 $$->ipn_info = 0;
310 $$->ipn_addr = $1[0];
311 $$->ipn_mask = $1[1];
312 }
313 | '!' addrmask { $$ = calloc(1, sizeof(*$$));
314 $$->ipn_info = 1;
315 $$->ipn_addr = $2[0];
316 $$->ipn_mask = $2[1];
317 }
318 | YY_STR { $$ = add_poolhosts($1);
319 free($1);
320 }
321 | IPT_WHOIS IPT_FILE YY_STR { $$ = read_whoisfile($3);
322 free($3);
323 }
324 ;
325
326 hashlist:
327 ';' { $$ = NULL; }
328 | hashentry next { $$ = $1; }
329 | hashentry next hashlist { $1->ipe_next = $3; $$ = $1; }
330 ;
331
332 hashentry:
333 addrmask { $$ = calloc(1, sizeof(iphtent_t));
334 $$->ipe_addr = $1[0].adf_addr;
335 $$->ipe_mask = $1[1].adf_addr;
336 #ifdef USE_INET6
337 if (use_inet6)
338 $$->ipe_family = AF_INET6;
339 else
340 #endif
341 $$->ipe_family = AF_INET;
342 }
343 | YY_STR { $$ = add_htablehosts($1);
344 free($1);
345 }
346 ;
347
348 addrmask:
349 ipaddr '/' mask { $$[0] = $1;
350 setadflen(&$$[0]);
351 $$[1] = $3;
352 $$[1].adf_len = $$[0].adf_len;
353 }
354 | ipaddr { $$[0] = $1;
355 setadflen(&$$[1]);
356 $$[1].adf_len = $$[0].adf_len;
357 #ifdef USE_INET6
358 if (use_inet6)
359 memset(&$$[1].adf_addr, 0xff,
360 sizeof($$[1].adf_addr.in6));
361 else
362 #endif
363 memset(&$$[1].adf_addr, 0xff,
364 sizeof($$[1].adf_addr.in4));
365 }
366 ;
367
368 ipaddr: ipv4 { $$.adf_addr.in4 = $1;
369 $$.adf_family = AF_INET;
370 setadflen(&$$);
371 use_inet6 = 0;
372 }
373 | YY_NUMBER { $$.adf_addr.in4.s_addr = htonl($1);
374 $$.adf_family = AF_INET;
375 setadflen(&$$);
376 use_inet6 = 0;
377 }
378 | YY_IPV6 { $$.adf_addr = $1;
379 $$.adf_family = AF_INET6;
380 setadflen(&$$);
381 use_inet6 = 1;
382 }
383 ;
384
385 mask: YY_NUMBER { bzero(&$$, sizeof($$));
386 if (use_inet6) {
387 if (ntomask(AF_INET6, $1,
388 (u_32_t *)&$$.adf_addr) == -1)
389 yyerror("bad bitmask");
390 } else {
391 if (ntomask(AF_INET, $1,
392 (u_32_t *)&$$.adf_addr.in4) == -1)
393 yyerror("bad bitmask");
394 }
395 }
396 | ipv4 { bzero(&$$, sizeof($$));
397 $$.adf_addr.in4 = $1;
398 }
399 | YY_IPV6 { bzero(&$$, sizeof($$));
400 $$.adf_addr = $1;
401 }
402 ;
403
404 size: IPT_SIZE '=' YY_NUMBER { ipht.iph_size = $3; }
405 ;
406
407 seed: IPT_SEED '=' YY_NUMBER { ipht.iph_seed = $3; }
408 ;
409
410 ipv4: YY_NUMBER '.' YY_NUMBER '.' YY_NUMBER '.' YY_NUMBER
411 { if ($1 > 255 || $3 > 255 || $5 > 255 || $7 > 255) {
412 yyerror("Invalid octet string for IP address");
413 return 0;
414 }
415 $$.s_addr = ($1 << 24) | ($3 << 16) | ($5 << 8) | $7;
416 $$.s_addr = htonl($$.s_addr);
417 }
418 ;
419
420 next: ';' { yyexpectaddr = 1; }
421 ;
422
423 start: '{' { yyexpectaddr = 1; }
424 ;
425
426 end: '}' { yyexpectaddr = 0; }
427 ;
428
429 poolline:
430 IPT_POOL unit '/' IPT_DSTLIST '(' name ';' dstopts ')'
431 start dstlist end
432 { bzero((char *)&ipld, sizeof(ipld));
433 strncpy(ipld.ipld_name, $6,
434 sizeof(ipld.ipld_name));
435 ipld.ipld_unit = $2;
436 ipld.ipld_policy = $8;
437 load_dstlist(&ipld, poolioctl, $11);
438 resetlexer();
439 use_inet6 = 0;
440 free($6);
441 }
442 | IPT_POOL unit '/' IPT_TREE '(' name ';' ')'
443 start addrlist end
444 { bzero((char *)&iplo, sizeof(iplo));
445 strncpy(iplo.ipo_name, $6,
446 sizeof(iplo.ipo_name));
447 iplo.ipo_list = $10;
448 iplo.ipo_unit = $2;
449 load_pool(&iplo, poolioctl);
450 resetlexer();
451 use_inet6 = 0;
452 free($6);
453 }
454 | IPT_POOL '(' name ';' ')' start addrlist end
455 { bzero((char *)&iplo, sizeof(iplo));
456 strncpy(iplo.ipo_name, $3,
457 sizeof(iplo.ipo_name));
458 iplo.ipo_list = $7;
459 iplo.ipo_unit = IPL_LOGALL;
460 load_pool(&iplo, poolioctl);
461 resetlexer();
462 use_inet6 = 0;
463 free($3);
464 }
465 | IPT_POOL unit '/' IPT_HASH '(' name ';' hashoptlist ')'
466 start hashlist end
467 { iphtent_t *h;
468 bzero((char *)&ipht, sizeof(ipht));
469 strncpy(ipht.iph_name, $6,
470 sizeof(ipht.iph_name));
471 ipht.iph_unit = $2;
472 load_hash(&ipht, $11, poolioctl);
473 while ((h = ipht.iph_list) != NULL) {
474 ipht.iph_list = h->ipe_next;
475 free(h);
476 }
477 resetlexer();
478 use_inet6 = 0;
479 free($6);
480 }
481 | IPT_GROUPMAP '(' name ';' inout ';' ')'
482 start setgrouplist end
483 { iphtent_t *h;
484 bzero((char *)&ipht, sizeof(ipht));
485 strncpy(ipht.iph_name, $3,
486 sizeof(ipht.iph_name));
487 ipht.iph_type = IPHASH_GROUPMAP;
488 ipht.iph_unit = IPL_LOGIPF;
489 ipht.iph_flags = $5;
490 load_hash(&ipht, $9, poolioctl);
491 while ((h = ipht.iph_list) != NULL) {
492 ipht.iph_list = h->ipe_next;
493 free(h);
494 }
495 resetlexer();
496 use_inet6 = 0;
497 free($3);
498 }
499 ;
500
501 name: IPT_NAME YY_STR { $$ = $2; }
502 | IPT_NUM YY_NUMBER { char name[80];
503 sprintf(name, "%d", $2);
504 $$ = strdup(name);
505 }
506 ;
507
508 hashoptlist:
509 | hashopt ';'
510 | hashoptlist ';' hashopt ';'
511 ;
512 hashopt:
513 IPT_SIZE YY_NUMBER
514 | IPT_SEED YY_NUMBER
515 ;
516
517 dstlist:
518 dstentries { $$ = $1; }
519 | ';' { $$ = NULL; }
520 ;
521
522 dstentries:
523 dstentry next { $$ = $1; }
524 | dstentry next dstentries { $1->ipfd_next = $3; $$ = $1; }
525 ;
526
527 dstentry:
528 YY_STR ':' ipaddr { int size = sizeof(*$$) + strlen($1) + 1;
529 $$ = calloc(1, size);
530 if ($$ != NULL) {
531 $$->ipfd_dest.fd_name = strlen($1) + 1;
532 bcopy($1, $$->ipfd_names,
533 $$->ipfd_dest.fd_name);
534 $$->ipfd_dest.fd_addr = $3;
535 $$->ipfd_size = size;
536 }
537 free($1);
538 }
539 | ipaddr { $$ = calloc(1, sizeof(*$$));
540 if ($$ != NULL) {
541 $$->ipfd_dest.fd_name = -1;
542 $$->ipfd_dest.fd_addr = $1;
543 $$->ipfd_size = sizeof(*$$);
544 }
545 }
546 ;
547
548 dstopts:
549 { $$ = IPLDP_NONE; }
550 | IPT_POLICY IPT_ROUNDROBIN ';' { $$ = IPLDP_ROUNDROBIN; }
551 | IPT_POLICY IPT_WEIGHTED weighting ';' { $$ = $3; }
552 | IPT_POLICY IPT_RANDOM ';' { $$ = IPLDP_RANDOM; }
553 | IPT_POLICY IPT_HASH ';' { $$ = IPLDP_HASHED; }
554 | IPT_POLICY IPT_SRCHASH ';' { $$ = IPLDP_SRCHASH; }
555 | IPT_POLICY IPT_DSTHASH ';' { $$ = IPLDP_DSTHASH; }
556 ;
557
558 weighting:
559 IPT_CONNECTION { $$ = IPLDP_CONNECTION; }
560 ;
561 %%
562 static wordtab_t yywords[] = {
563 { "all", IPT_ALL },
564 { "auth", IPT_AUTH },
565 { "connection", IPT_CONNECTION },
566 { "count", IPT_COUNT },
567 { "dst-hash", IPT_DSTHASH },
568 { "dstlist", IPT_DSTLIST },
569 { "file", IPT_FILE },
570 { "group", IPT_GROUP },
571 { "group-map", IPT_GROUPMAP },
572 { "hash", IPT_HASH },
573 { "in", IPT_IN },
574 { "ipf", IPT_IPF },
575 { "name", IPT_NAME },
576 { "nat", IPT_NAT },
577 { "number", IPT_NUM },
578 { "out", IPT_OUT },
579 { "policy", IPT_POLICY },
580 { "pool", IPT_POOL },
581 { "random", IPT_RANDOM },
582 { "round-robin", IPT_ROUNDROBIN },
583 { "role", IPT_ROLE },
584 { "seed", IPT_SEED },
585 { "size", IPT_SIZE },
586 { "src-hash", IPT_SRCHASH },
587 { "table", IPT_TABLE },
588 { "tree", IPT_TREE },
589 { "type", IPT_TYPE },
590 { "weighted", IPT_WEIGHTED },
591 { "whois", IPT_WHOIS },
592 { NULL, 0 }
593 };
594
595
ippool_parsefile(fd,filename,iocfunc)596 int ippool_parsefile(fd, filename, iocfunc)
597 int fd;
598 char *filename;
599 ioctlfunc_t iocfunc;
600 {
601 FILE *fp = NULL;
602 char *s;
603
604 yylineNum = 1;
605 (void) yysettab(yywords);
606
607 s = getenv("YYDEBUG");
608 if (s)
609 yydebug = atoi(s);
610 else
611 yydebug = 0;
612
613 if (strcmp(filename, "-")) {
614 fp = fopen(filename, "r");
615 if (!fp) {
616 fprintf(stderr, "fopen(%s) failed: %s\n", filename,
617 STRERROR(errno));
618 return -1;
619 }
620 } else
621 fp = stdin;
622
623 while (ippool_parsesome(fd, fp, iocfunc) == 1)
624 ;
625 if (fp != NULL)
626 fclose(fp);
627 return 0;
628 }
629
630
ippool_parsesome(fd,fp,iocfunc)631 int ippool_parsesome(fd, fp, iocfunc)
632 int fd;
633 FILE *fp;
634 ioctlfunc_t iocfunc;
635 {
636 char *s;
637 int i;
638
639 poolioctl = iocfunc;
640
641 if (feof(fp))
642 return 0;
643 i = fgetc(fp);
644 if (i == EOF)
645 return 0;
646 if (ungetc(i, fp) == EOF)
647 return 0;
648 if (feof(fp))
649 return 0;
650 s = getenv("YYDEBUG");
651 if (s)
652 yydebug = atoi(s);
653 else
654 yydebug = 0;
655
656 yyin = fp;
657 yyparse();
658 return 1;
659 }
660
661
662 static iphtent_t *
add_htablehosts(url)663 add_htablehosts(url)
664 char *url;
665 {
666 iphtent_t *htop, *hbot, *h;
667 alist_t *a, *hlist;
668
669 if (!strncmp(url, "file://", 7) || !strncmp(url, "http://", 7)) {
670 hlist = load_url(url);
671 } else {
672 use_inet6 = 0;
673
674 hlist = calloc(1, sizeof(*hlist));
675 if (hlist == NULL)
676 return NULL;
677
678 if (gethost(hlist->al_family, url, &hlist->al_i6addr) == -1) {
679 yyerror("Unknown hostname");
680 }
681 }
682
683 hbot = NULL;
684 htop = NULL;
685
686 for (a = hlist; a != NULL; a = a->al_next) {
687 h = calloc(1, sizeof(*h));
688 if (h == NULL)
689 break;
690
691 h->ipe_family = a->al_family;
692 h->ipe_addr = a->al_i6addr;
693 h->ipe_mask = a->al_i6mask;
694
695 if (hbot != NULL)
696 hbot->ipe_next = h;
697 else
698 htop = h;
699 hbot = h;
700 }
701
702 alist_free(hlist);
703
704 return htop;
705 }
706
707
708 static ip_pool_node_t *
add_poolhosts(url)709 add_poolhosts(url)
710 char *url;
711 {
712 ip_pool_node_t *ptop, *pbot, *p;
713 alist_t *a, *hlist;
714
715 if (!strncmp(url, "file://", 7) || !strncmp(url, "http://", 7)) {
716 hlist = load_url(url);
717 } else {
718 use_inet6 = 0;
719
720 hlist = calloc(1, sizeof(*hlist));
721 if (hlist == NULL)
722 return NULL;
723
724 if (gethost(hlist->al_family, url, &hlist->al_i6addr) == -1) {
725 yyerror("Unknown hostname");
726 }
727 }
728
729 pbot = NULL;
730 ptop = NULL;
731
732 for (a = hlist; a != NULL; a = a->al_next) {
733 p = calloc(1, sizeof(*p));
734 if (p == NULL)
735 break;
736 p->ipn_mask.adf_addr = a->al_i6mask;
737
738 if (a->al_family == AF_INET) {
739 p->ipn_addr.adf_family = AF_INET;
740 #ifdef USE_INET6
741 } else if (a->al_family == AF_INET6) {
742 p->ipn_addr.adf_family = AF_INET6;
743 #endif
744 }
745 setadflen(&p->ipn_addr);
746 p->ipn_addr.adf_addr = a->al_i6addr;
747 p->ipn_info = a->al_not;
748 p->ipn_mask.adf_len = p->ipn_addr.adf_len;
749
750 if (pbot != NULL)
751 pbot->ipn_next = p;
752 else
753 ptop = p;
754 pbot = p;
755 }
756
757 alist_free(hlist);
758
759 return ptop;
760 }
761
762
763 ip_pool_node_t *
read_whoisfile(file)764 read_whoisfile(file)
765 char *file;
766 {
767 ip_pool_node_t *ntop, *ipn, node, *last;
768 char line[1024];
769 FILE *fp;
770
771 fp = fopen(file, "r");
772 if (fp == NULL)
773 return NULL;
774
775 last = NULL;
776 ntop = NULL;
777 while (fgets(line, sizeof(line) - 1, fp) != NULL) {
778 line[sizeof(line) - 1] = '\0';
779
780 if (parsewhoisline(line, &node.ipn_addr, &node.ipn_mask))
781 continue;
782 ipn = calloc(1, sizeof(*ipn));
783 if (ipn == NULL)
784 continue;
785 ipn->ipn_addr = node.ipn_addr;
786 ipn->ipn_mask = node.ipn_mask;
787 if (last == NULL)
788 ntop = ipn;
789 else
790 last->ipn_next = ipn;
791 last = ipn;
792 }
793 fclose(fp);
794 return ntop;
795 }
796
797
798 static void
setadflen(afp)799 setadflen(afp)
800 addrfamily_t *afp;
801 {
802 afp->adf_len = offsetof(addrfamily_t, adf_addr);
803 switch (afp->adf_family)
804 {
805 case AF_INET :
806 afp->adf_len += sizeof(struct in_addr);
807 break;
808 #ifdef USE_INET6
809 case AF_INET6 :
810 afp->adf_len += sizeof(struct in6_addr);
811 break;
812 #endif
813 default :
814 break;
815 }
816 }
817