xref: /illumos-gate/usr/src/cmd/ipf/tools/ipfstat.c (revision 43412a42)
1 /*
2  * Copyright (C) 1993-2001, 2003 by Darren Reed.
3  *
4  * See the IPFILTER.LICENCE file for details on licencing.
5  *
6  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
7  * Use is subject to license terms.
8  */
9 
10 #ifdef __FreeBSD__
11 # ifndef __FreeBSD_cc_version
12 #  include <osreldate.h>
13 # else
14 #  if __FreeBSD_cc_version < 430000
15 #   include <osreldate.h>
16 #  endif
17 # endif
18 #endif
19 #include <sys/ioctl.h>
20 #include <fcntl.h>
21 #ifdef linux
22 # include <linux/a.out.h>
23 #else
24 # include <nlist.h>
25 #endif
26 #include <ctype.h>
27 #if defined(sun) && (defined(__svr4__) || defined(__SVR4))
28 # include <stddef.h>
29 #endif
30 #include "ipf.h"
31 #include "netinet/ipl.h"
32 #if defined(STATETOP)
33 # if defined(_BSDI_VERSION)
34 #  undef STATETOP
35 # endif
36 # if defined(__FreeBSD__) && \
37      (!defined(__FreeBSD_version) || (__FreeBSD_version < 430000))
38 #  undef STATETOP
39 # endif
40 # if defined(__NetBSD_Version__) && (__NetBSD_Version__ < 105000000)
41 #  undef STATETOP
42 # endif
43 # if defined(sun)
44 #  if defined(__svr4__) || defined(__SVR4)
45 #   include <sys/select.h>
46 #  else
47 #   undef STATETOP	/* NOT supported on SunOS4 */
48 #  endif
49 # endif
50 #endif
51 #if defined(STATETOP) && !defined(linux)
52 # include <netinet/ip_var.h>
53 # include <netinet/tcp_fsm.h>
54 #endif
55 #ifdef STATETOP
56 # include <ctype.h>
57 # include <signal.h>
58 # if SOLARIS || defined(__NetBSD__) || defined(_BSDI_VERSION) || \
59      defined(__sgi)
60 #  ifdef ERR
61 #   undef ERR
62 #  endif
63 #  undef ISASCII
64 #  undef ISPRINT
65 #  include <curses.h>
66 # else /* SOLARIS */
67 #  include <ncurses.h>
68 # endif /* SOLARIS */
69 #endif /* STATETOP */
70 #include "kmem.h"
71 #if defined(__NetBSD__) || (__OpenBSD__)
72 # include <paths.h>
73 #endif
74 
75 #if !defined(lint)
76 static const char sccsid[] = "@(#)fils.c	1.21 4/20/96 (C) 1993-2000 Darren Reed";
77 static const char rcsid[] = "@(#)$Id: ipfstat.c,v 1.44.2.12 2005/06/12 07:18:46 darrenr Exp $";
78 #endif
79 
80 #ifdef __hpux
81 # define	nlist	nlist64
82 #endif
83 
84 extern	char	*optarg;
85 extern	int	optind;
86 extern	int	opterr;
87 
88 #define	PRINTF	(void)printf
89 #define	FPRINTF	(void)fprintf
90 static	char	*filters[4] = { "ipfilter(in)", "ipfilter(out)",
91 				"ipacct(in)", "ipacct(out)" };
92 static	int	state_logging = -1;
93 
94 int	opts = 0;
95 int	use_inet6 = 0;
96 int	live_kernel = 1;
97 int	state_fd = -1;
98 int	ipf_fd = -1;
99 
100 #ifdef STATETOP
101 #define	STSTRSIZE 	80
102 #define	STGROWSIZE	16
103 #define	HOSTNMLEN	40
104 
105 #define	STSORT_PR	0
106 #define	STSORT_PKTS	1
107 #define	STSORT_BYTES	2
108 #define	STSORT_TTL	3
109 #define	STSORT_SRCIP	4
110 #define	STSORT_SRCPT	5
111 #define	STSORT_DSTIP	6
112 #define	STSORT_DSTPT	7
113 #define	STSORT_MAX	STSORT_DSTPT
114 #define	STSORT_DEFAULT	STSORT_BYTES
115 
116 
117 typedef struct statetop {
118 	i6addr_t	st_src;
119 	i6addr_t	st_dst;
120 	u_short		st_sport;
121 	u_short 	st_dport;
122 	u_char		st_p;
123 	u_char		st_v;
124 	u_char		st_state[2];
125 	U_QUAD_T	st_pkts;
126 	U_QUAD_T	st_bytes;
127 	u_long		st_age;
128 } statetop_t;
129 #endif
130 
131 int	main __P((int, char *[]));
132 
133 static	void	showstats __P((friostat_t *, u_32_t));
134 static	void	showfrstates __P((ipfrstat_t *, u_long));
135 static	void	showlist __P((friostat_t *));
136 static	void	showipstates __P((ips_stat_t *));
137 static	void	showauthstates __P((fr_authstat_t *));
138 static	void	showgroups __P((friostat_t *));
139 static	void	usage __P((char *));
140 static	void	printlivelist __P((int, int, frentry_t *, char *, char *));
141 static	void	printdeadlist __P((int, int, frentry_t *, char *, char *));
142 static	void	printlist __P((frentry_t *, char *));
143 static	void	parse_ipportstr __P((const char *, i6addr_t *, int *));
144 static	void	ipfstate_live __P((char *, friostat_t **, ips_stat_t **,
145 				   ipfrstat_t **, fr_authstat_t **, u_32_t *));
146 static	void	ipfstate_dead __P((char *, friostat_t **, ips_stat_t **,
147 				   ipfrstat_t **, fr_authstat_t **, u_32_t *));
148 #ifdef STATETOP
149 static	void	topipstates __P((i6addr_t, i6addr_t, int, int, int,
150 				 int, int, int));
151 static	void	sig_break __P((int));
152 static	void	sig_resize __P((int));
153 static	char	*getip __P((int, i6addr_t *));
154 static	char	*ttl_to_string __P((long));
155 static	int	sort_p __P((const void *, const void *));
156 static	int	sort_pkts __P((const void *, const void *));
157 static	int	sort_bytes __P((const void *, const void *));
158 static	int	sort_ttl __P((const void *, const void *));
159 static	int	sort_srcip __P((const void *, const void *));
160 static	int	sort_srcpt __P((const void *, const void *));
161 static	int	sort_dstip __P((const void *, const void *));
162 static	int	sort_dstpt __P((const void *, const void *));
163 #endif
164 
165 
166 static void usage(name)
167 char *name;
168 {
169 #ifdef  USE_INET6
170 	fprintf(stderr, "Usage: %s [-6aAdfghIilnoRsv]\n", name);
171 #else
172 	fprintf(stderr, "Usage: %s [-aAdfghIilnoRsv]\n", name);
173 #endif
174 	fprintf(stderr, "       %s [-M corefile] [-N symbol-list]\n", name);
175 #ifdef	USE_INET6
176 	fprintf(stderr, "       %s -t [-6C] ", name);
177 #else
178 	fprintf(stderr, "       %s -t [-C] ", name);
179 #endif
180 	fprintf(stderr, "[-D destination address] [-P protocol] [-S source address] [-T refresh time]\n");
181 	exit(1);
182 }
183 
184 
185 int main(argc,argv)
186 int argc;
187 char *argv[];
188 {
189 	fr_authstat_t	frauthst;
190 	fr_authstat_t	*frauthstp = &frauthst;
191 	friostat_t fio;
192 	friostat_t *fiop = &fio;
193 	ips_stat_t ipsst;
194 	ips_stat_t *ipsstp = &ipsst;
195 	ipfrstat_t ifrst;
196 	ipfrstat_t *ifrstp = &ifrst;
197 	char	*device = IPL_NAME, *memf = NULL;
198 	char	*options, *kern = NULL;
199 	int	c, myoptind;
200 
201 	int protocol = -1;		/* -1 = wild card for any protocol */
202 	int refreshtime = 1; 		/* default update time */
203 	int sport = -1;			/* -1 = wild card for any source port */
204 	int dport = -1;			/* -1 = wild card for any dest port */
205 	int topclosed = 0;		/* do not show closed tcp sessions */
206 	i6addr_t saddr, daddr;
207 	u_32_t frf;
208 
209 #ifdef	USE_INET6
210 	options = "6aACdfghIilnostvD:M:N:P:RS:T:";
211 #else
212 	options = "aACdfghIilnostvD:M:N:P:RS:T:";
213 #endif
214 
215 	saddr.in4.s_addr = INADDR_ANY; 	/* default any v4 source addr */
216 	daddr.in4.s_addr = INADDR_ANY; 	/* default any v4 dest addr */
217 #ifdef	USE_INET6
218 	saddr.in6 = in6addr_any;	/* default any v6 source addr */
219 	daddr.in6 = in6addr_any;	/* default any v6 dest addr */
220 #endif
221 
222 	/* Don't warn about invalid flags when we run getopt for the 1st time */
223 	opterr = 0;
224 
225 	/*
226 	 * Parse these two arguments now lest there be any buffer overflows
227 	 * in the parsing of the rest.
228 	 */
229 	myoptind = optind;
230 	while ((c = getopt(argc, argv, options)) != -1) {
231 		switch (c)
232 		{
233 		case 'M' :
234 			memf = optarg;
235 			live_kernel = 0;
236 			break;
237 		case 'N' :
238 			kern = optarg;
239 			live_kernel = 0;
240 			break;
241 		}
242 	}
243 	optind = myoptind;
244 
245 	if (live_kernel == 1) {
246 		if ((state_fd = open(IPSTATE_NAME, O_RDONLY)) == -1) {
247 			perror("open(IPSTATE_NAME)");
248 			exit(-1);
249 		}
250 		if ((ipf_fd = open(device, O_RDONLY)) == -1) {
251 			fprintf(stderr, "open(%s)", device);
252 			perror("");
253 			exit(-1);
254 		}
255 	}
256 
257 	if (kern != NULL || memf != NULL) {
258 		(void)setgid(getgid());
259 		(void)setreuid(getuid(), getuid());
260 		if (openkmem(kern, memf) == -1)
261 			exit(-1);
262 	}
263 
264 	if (live_kernel == 1)
265 		(void) checkrev(device);
266 	(void)setgid(getgid());
267 	(void)setreuid(getuid(), getuid());
268 
269 	opterr = 1;
270 
271 	while ((c = getopt(argc, argv, options)) != -1)
272 	{
273 		switch (c)
274 		{
275 #ifdef	USE_INET6
276 		case '6' :
277 			use_inet6 = 1;
278 			break;
279 #endif
280 		case 'a' :
281 			opts |= OPT_ACCNT|OPT_SHOWLIST;
282 			break;
283 		case 'A' :
284 			opts |= OPT_AUTHSTATS;
285 			break;
286 		case 'C' :
287 			topclosed = 1;
288 			break;
289 		case 'd' :
290 			opts |= OPT_DEBUG;
291 			break;
292 		case 'D' :
293 			parse_ipportstr(optarg, &daddr, &dport);
294 			break;
295 		case 'f' :
296 			opts |= OPT_FRSTATES;
297 			break;
298 		case 'g' :
299 			opts |= OPT_GROUPS;
300 			break;
301 		case 'h' :
302 			opts |= OPT_HITS;
303 			break;
304 		case 'i' :
305 			opts |= OPT_INQUE|OPT_SHOWLIST;
306 			break;
307 		case 'I' :
308 			opts |= OPT_INACTIVE;
309 			break;
310 		case 'l' :
311 			opts |= OPT_SHOWLIST;
312 			break;
313 		case 'M' :
314 			break;
315 		case 'N' :
316 			break;
317 		case 'n' :
318 			opts |= OPT_SHOWLINENO;
319 			break;
320 		case 'o' :
321 			opts |= OPT_OUTQUE|OPT_SHOWLIST;
322 			break;
323 		case 'P' :
324 			protocol = getproto(optarg);
325 			if (protocol == -1) {
326 				fprintf(stderr, "%s: Invalid protocol: %s\n",
327 					argv[0], optarg);
328 				exit(-2);
329 			}
330 			break;
331 		case 'R' :
332 			opts |= OPT_NORESOLVE;
333 			break;
334 		case 's' :
335 			opts |= OPT_IPSTATES;
336 			break;
337 		case 'S' :
338 			parse_ipportstr(optarg, &saddr, &sport);
339 			break;
340 		case 't' :
341 #ifdef STATETOP
342 			opts |= OPT_STATETOP;
343 			break;
344 #else
345 			fprintf(stderr,
346 				"%s: state top facility not compiled in\n",
347 				argv[0]);
348 			exit(-2);
349 #endif
350 		case 'T' :
351 			if (!sscanf(optarg, "%d", &refreshtime) ||
352 				    (refreshtime <= 0)) {
353 				fprintf(stderr,
354 					"%s: Invalid refreshtime < 1 : %s\n",
355 					argv[0], optarg);
356 				exit(-2);
357 			}
358 			break;
359 		case 'v' :
360 			opts |= OPT_VERBOSE;
361 			opts |= OPT_UNDEF;
362 			break;
363 		default :
364 			usage(argv[0]);
365 			break;
366 		}
367 	}
368 
369 	if (live_kernel == 1) {
370 		bzero((char *)&fio, sizeof(fio));
371 		bzero((char *)&ipsst, sizeof(ipsst));
372 		bzero((char *)&ifrst, sizeof(ifrst));
373 
374 		ipfstate_live(device, &fiop, &ipsstp, &ifrstp,
375 			      &frauthstp, &frf);
376 	} else
377 		ipfstate_dead(kern, &fiop, &ipsstp, &ifrstp, &frauthstp, &frf);
378 
379 	if (opts & OPT_IPSTATES) {
380 		showipstates(ipsstp);
381 	} else if (opts & OPT_SHOWLIST) {
382 		showlist(fiop);
383 		if ((opts & OPT_OUTQUE) && (opts & OPT_INQUE)){
384 			opts &= ~OPT_OUTQUE;
385 			showlist(fiop);
386 		}
387 	} else if (opts & OPT_FRSTATES)
388 		showfrstates(ifrstp, fiop->f_ticks);
389 #ifdef STATETOP
390 	else if (opts & OPT_STATETOP)
391 		topipstates(saddr, daddr, sport, dport, protocol,
392 			    use_inet6 ? 6 : 4, refreshtime, topclosed);
393 #endif
394 	else if (opts & OPT_AUTHSTATS)
395 		showauthstates(frauthstp);
396 	else if (opts & OPT_GROUPS)
397 		showgroups(fiop);
398 	else
399 		showstats(fiop, frf);
400 
401 	return 0;
402 }
403 
404 
405 /*
406  * Fill in the stats structures from the live kernel, using a combination
407  * of ioctl's and copying directly from kernel memory.
408  */
409 static void ipfstate_live(device, fiopp, ipsstpp, ifrstpp, frauthstpp, frfp)
410 char *device;
411 friostat_t **fiopp;
412 ips_stat_t **ipsstpp;
413 ipfrstat_t **ifrstpp;
414 fr_authstat_t **frauthstpp;
415 u_32_t *frfp;
416 {
417 	ipfobj_t ipfo;
418 
419 	if (checkrev(device) == -1) {
420 		fprintf(stderr, "User/kernel version check failed\n");
421 		exit(1);
422 	}
423 
424 	if ((opts & OPT_AUTHSTATS) == 0) {
425 		bzero((caddr_t)&ipfo, sizeof(ipfo));
426 		ipfo.ipfo_rev = IPFILTER_VERSION;
427 		ipfo.ipfo_size = sizeof(friostat_t);
428 		ipfo.ipfo_ptr = (void *)*fiopp;
429 		ipfo.ipfo_type = IPFOBJ_IPFSTAT;
430 
431 		if (ioctl(ipf_fd, SIOCGETFS, &ipfo) == -1) {
432 			perror("ioctl(ipf:SIOCGETFS)");
433 			exit(-1);
434 		}
435 
436 		if (ioctl(ipf_fd, SIOCGETFF, frfp) == -1)
437 			perror("ioctl(SIOCGETFF)");
438 	}
439 
440 	if ((opts & OPT_IPSTATES) != 0) {
441 
442 		bzero((caddr_t)&ipfo, sizeof(ipfo));
443 		ipfo.ipfo_rev = IPFILTER_VERSION;
444 		ipfo.ipfo_size = sizeof(ips_stat_t);
445 		ipfo.ipfo_ptr = (void *)*ipsstpp;
446 		ipfo.ipfo_type = IPFOBJ_STATESTAT;
447 
448 		if ((ioctl(state_fd, SIOCGETFS, &ipfo) == -1)) {
449 			perror("ioctl(state:SIOCGETFS)");
450 			exit(-1);
451 		}
452 		if (ioctl(state_fd, SIOCGETLG, &state_logging) == -1) {
453 			perror("ioctl(state:SIOCGETLG)");
454 			exit(-1);
455 		}
456 	}
457 
458 	if ((opts & OPT_FRSTATES) != 0) {
459 		bzero((caddr_t)&ipfo, sizeof(ipfo));
460 		ipfo.ipfo_rev = IPFILTER_VERSION;
461 		ipfo.ipfo_size = sizeof(ipfrstat_t);
462 		ipfo.ipfo_ptr = (void *)*ifrstpp;
463 		ipfo.ipfo_type = IPFOBJ_FRAGSTAT;
464 
465 		if (ioctl(ipf_fd, SIOCGFRST, &ipfo) == -1) {
466 			perror("ioctl(SIOCGFRST)");
467 			exit(-1);
468 		}
469 	}
470 
471 	if (opts & OPT_VERBOSE)
472 		PRINTF("opts %#x name %s\n", opts, device);
473 
474 	if ((opts & OPT_AUTHSTATS) != 0) {
475 		if (ipf_fd >= 0) {
476 			close(ipf_fd);
477 			ipf_fd = -1;
478 		}
479 		device = IPAUTH_NAME;
480 		if ((ipf_fd = open(device, O_RDONLY)) == -1) {
481 			perror("open");
482 			exit(-1);
483 		}
484 
485 		bzero((caddr_t)&ipfo, sizeof(ipfo));
486 		ipfo.ipfo_rev = IPFILTER_VERSION;
487 		ipfo.ipfo_size = sizeof(fr_authstat_t);
488 		ipfo.ipfo_ptr = (void *)*frauthstpp;
489 		ipfo.ipfo_type = IPFOBJ_AUTHSTAT;
490 
491 	    	if (ioctl(ipf_fd, SIOCATHST, &ipfo) == -1) {
492 			perror("ioctl(SIOCATHST)");
493 			exit(-1);
494 		}
495 	}
496 }
497 
498 
499 /*
500  * Build up the stats structures from data held in the "core" memory.
501  * This is mainly useful when looking at data in crash dumps and ioctl's
502  * just won't work any more.
503  */
504 static void ipfstate_dead(kernel, fiopp, ipsstpp, ifrstpp, frauthstpp, frfp)
505 char *kernel;
506 friostat_t **fiopp;
507 ips_stat_t **ipsstpp;
508 ipfrstat_t **ifrstpp;
509 fr_authstat_t **frauthstpp;
510 u_32_t *frfp;
511 {
512 	static fr_authstat_t frauthst, *frauthstp;
513 	static ips_stat_t ipsst, *ipsstp;
514 	static ipfrstat_t ifrst, *ifrstp;
515 	static friostat_t fio, *fiop;
516 	int temp;
517 
518 	void *rules[2][2];
519 	struct nlist deadlist[43] = {
520 		{ "fr_authstats" },		/* 0 */
521 		{ "fae_list" },
522 		{ "ipauth" },
523 		{ "fr_authlist" },
524 		{ "fr_authstart" },
525 		{ "fr_authend" },		/* 5 */
526 		{ "fr_authnext" },
527 		{ "fr_auth" },
528 		{ "fr_authused" },
529 		{ "fr_authsize" },
530 		{ "fr_defaultauthage" },	/* 10 */
531 		{ "fr_authpkts" },
532 		{ "fr_auth_lock" },
533 		{ "frstats" },
534 		{ "ips_stats" },
535 		{ "ips_num" },			/* 15 */
536 		{ "ips_wild" },
537 		{ "ips_list" },
538 		{ "ips_table" },
539 		{ "fr_statemax" },
540 		{ "fr_statesize" },		/* 20 */
541 		{ "fr_state_doflush" },
542 		{ "fr_state_lock" },
543 		{ "ipfr_heads" },
544 		{ "ipfr_nattab" },
545 		{ "ipfr_stats" },		/* 25 */
546 		{ "ipfr_inuse" },
547 		{ "fr_ipfrttl" },
548 		{ "fr_frag_lock" },
549 		{ "ipfr_timer_id" },
550 		{ "fr_nat_lock" },		/* 30 */
551 		{ "ipfilter" },
552 		{ "ipfilter6" },
553 		{ "ipacct" },
554 		{ "ipacct6" },
555 		{ "ipl_frouteok" },		/* 35 */
556 		{ "fr_running" },
557 		{ "ipfgroups" },
558 		{ "fr_active" },
559 		{ "fr_pass" },
560 		{ "fr_flags" },			/* 40 */
561 		{ "ipstate_logging" },
562 		{ NULL }
563 	};
564 
565 
566 	frauthstp = &frauthst;
567 	ipsstp = &ipsst;
568 	ifrstp = &ifrst;
569 	fiop = &fio;
570 
571 	*frfp = 0;
572 	*fiopp = fiop;
573 	*ipsstpp = ipsstp;
574 	*ifrstpp = ifrstp;
575 	*frauthstpp = frauthstp;
576 
577 	bzero((char *)fiop, sizeof(*fiop));
578 	bzero((char *)ipsstp, sizeof(*ipsstp));
579 	bzero((char *)ifrstp, sizeof(*ifrstp));
580 	bzero((char *)frauthstp, sizeof(*frauthstp));
581 
582 	if (nlist(kernel, deadlist) == -1) {
583 		fprintf(stderr, "nlist error\n");
584 		return;
585 	}
586 
587 	/*
588 	 * This is for SIOCGETFF.
589 	 */
590 	kmemcpy((char *)frfp, (u_long)deadlist[40].n_value, sizeof(*frfp));
591 
592 	/*
593 	 * f_locks is a combination of the lock variable from each part of
594 	 * ipfilter (state, auth, nat, fragments).
595 	 */
596 	kmemcpy((char *)fiop, (u_long)deadlist[13].n_value, sizeof(*fiop));
597 	kmemcpy((char *)&fiop->f_locks[0], (u_long)deadlist[22].n_value,
598 		sizeof(fiop->f_locks[0]));
599 	kmemcpy((char *)&fiop->f_locks[0], (u_long)deadlist[30].n_value,
600 		sizeof(fiop->f_locks[1]));
601 	kmemcpy((char *)&fiop->f_locks[2], (u_long)deadlist[28].n_value,
602 		sizeof(fiop->f_locks[2]));
603 	kmemcpy((char *)&fiop->f_locks[3], (u_long)deadlist[12].n_value,
604 		sizeof(fiop->f_locks[3]));
605 
606 	/*
607 	 * Get pointers to each list of rules (active, inactive, in, out)
608 	 */
609 	kmemcpy((char *)&rules, (u_long)deadlist[31].n_value, sizeof(rules));
610 	fiop->f_fin[0] = rules[0][0];
611 	fiop->f_fin[1] = rules[0][1];
612 	fiop->f_fout[0] = rules[1][0];
613 	fiop->f_fout[1] = rules[1][1];
614 
615 	/*
616 	 * Same for IPv6, except make them null if support for it is not
617 	 * being compiled in.
618 	 */
619 #ifdef	USE_INET6
620 	kmemcpy((char *)&rules, (u_long)deadlist[32].n_value, sizeof(rules));
621 	fiop->f_fin6[0] = rules[0][0];
622 	fiop->f_fin6[1] = rules[0][1];
623 	fiop->f_fout6[0] = rules[1][0];
624 	fiop->f_fout6[1] = rules[1][1];
625 #else
626 	fiop->f_fin6[0] = NULL;
627 	fiop->f_fin6[1] = NULL;
628 	fiop->f_fout6[0] = NULL;
629 	fiop->f_fout6[1] = NULL;
630 #endif
631 
632 	/*
633 	 * Now get accounting rules pointers.
634 	 */
635 	kmemcpy((char *)&rules, (u_long)deadlist[33].n_value, sizeof(rules));
636 	fiop->f_acctin[0] = rules[0][0];
637 	fiop->f_acctin[1] = rules[0][1];
638 	fiop->f_acctout[0] = rules[1][0];
639 	fiop->f_acctout[1] = rules[1][1];
640 
641 #ifdef	USE_INET6
642 	kmemcpy((char *)&rules, (u_long)deadlist[34].n_value, sizeof(rules));
643 	fiop->f_acctin6[0] = rules[0][0];
644 	fiop->f_acctin6[1] = rules[0][1];
645 	fiop->f_acctout6[0] = rules[1][0];
646 	fiop->f_acctout6[1] = rules[1][1];
647 #else
648 	fiop->f_acctin6[0] = NULL;
649 	fiop->f_acctin6[1] = NULL;
650 	fiop->f_acctout6[0] = NULL;
651 	fiop->f_acctout6[1] = NULL;
652 #endif
653 
654 	/*
655 	 * A collection of "global" variables used inside the kernel which
656 	 * are all collected in friostat_t via ioctl.
657 	 */
658 	kmemcpy((char *)&fiop->f_froute, (u_long)deadlist[35].n_value,
659 		sizeof(fiop->f_froute));
660 	kmemcpy((char *)&fiop->f_running, (u_long)deadlist[36].n_value,
661 		sizeof(fiop->f_running));
662 	kmemcpy((char *)&fiop->f_groups, (u_long)deadlist[37].n_value,
663 		sizeof(fiop->f_groups));
664 	kmemcpy((char *)&fiop->f_active, (u_long)deadlist[38].n_value,
665 		sizeof(fiop->f_active));
666 	kmemcpy((char *)&fiop->f_defpass, (u_long)deadlist[39].n_value,
667 		sizeof(fiop->f_defpass));
668 
669 	/*
670 	 * Build up the state information stats structure.
671 	 */
672 	kmemcpy((char *)ipsstp, (u_long)deadlist[14].n_value, sizeof(*ipsstp));
673 	kmemcpy((char *)&temp, (u_long)deadlist[15].n_value, sizeof(temp));
674 	ipsstp->iss_active = temp;
675 	ipsstp->iss_table = (void *)deadlist[18].n_value;
676 	ipsstp->iss_list = (void *)deadlist[17].n_value;
677 
678 	/*
679 	 * Build up the authentiation information stats structure.
680 	 */
681 	kmemcpy((char *)frauthstp, (u_long)deadlist[0].n_value,
682 		sizeof(*frauthstp));
683 	frauthstp->fas_faelist = (void *)deadlist[1].n_value;
684 
685 	/*
686 	 * Build up the fragment information stats structure.
687 	 */
688 	kmemcpy((char *)ifrstp, (u_long)deadlist[25].n_value,
689 		sizeof(*ifrstp));
690 	ifrstp->ifs_table = (void *)deadlist[23].n_value;
691 	ifrstp->ifs_nattab = (void *)deadlist[24].n_value;
692 	kmemcpy((char *)&ifrstp->ifs_inuse, (u_long)deadlist[26].n_value,
693 		sizeof(ifrstp->ifs_inuse));
694 
695 	/*
696 	 * Get logging on/off switches
697 	 */
698 	kmemcpy((char *)&state_logging, (u_long)deadlist[41].n_value,
699 		sizeof(state_logging));
700 }
701 
702 
703 /*
704  * Display the kernel stats for packets blocked and passed and other
705  * associated running totals which are kept.
706  */
707 static	void	showstats(fp, frf)
708 struct	friostat	*fp;
709 u_32_t frf;
710 {
711 
712 	PRINTF("bad packets:\t\tin %lu\tout %lu\n",
713 			fp->f_st[0].fr_bad, fp->f_st[1].fr_bad);
714 #ifdef	USE_INET6
715 	PRINTF(" IPv6 packets:\t\tin %lu out %lu\n",
716 			fp->f_st[0].fr_ipv6, fp->f_st[1].fr_ipv6);
717 #endif
718 	PRINTF(" input packets:\t\tblocked %lu passed %lu nomatch %lu",
719 			fp->f_st[0].fr_block, fp->f_st[0].fr_pass,
720 			fp->f_st[0].fr_nom);
721 	PRINTF(" counted %lu short %lu\n",
722 			fp->f_st[0].fr_acct, fp->f_st[0].fr_short);
723 	PRINTF("output packets:\t\tblocked %lu passed %lu nomatch %lu",
724 			fp->f_st[1].fr_block, fp->f_st[1].fr_pass,
725 			fp->f_st[1].fr_nom);
726 	PRINTF(" counted %lu short %lu\n",
727 			fp->f_st[1].fr_acct, fp->f_st[1].fr_short);
728 	PRINTF(" input packets logged:\tblocked %lu passed %lu\n",
729 			fp->f_st[0].fr_bpkl, fp->f_st[0].fr_ppkl);
730 	PRINTF("output packets logged:\tblocked %lu passed %lu\n",
731 			fp->f_st[1].fr_bpkl, fp->f_st[1].fr_ppkl);
732 	PRINTF(" packets logged:\tinput %lu output %lu\n",
733 			fp->f_st[0].fr_pkl, fp->f_st[1].fr_pkl);
734 	PRINTF(" log failures:\t\tinput %lu output %lu\n",
735 			fp->f_st[0].fr_skip, fp->f_st[1].fr_skip);
736 	PRINTF("fragment state(in):\tkept %lu\tlost %lu\tnot fragmented %lu\n",
737 			fp->f_st[0].fr_nfr, fp->f_st[0].fr_bnfr,
738 			fp->f_st[0].fr_cfr);
739 	PRINTF("fragment state(out):\tkept %lu\tlost %lu\tnot fragmented %lu\n",
740 			fp->f_st[1].fr_nfr, fp->f_st[1].fr_bnfr,
741 			fp->f_st[0].fr_cfr);
742 	PRINTF("packet state(in):\tkept %lu\tlost %lu\n",
743 			fp->f_st[0].fr_ads, fp->f_st[0].fr_bads);
744 	PRINTF("packet state(out):\tkept %lu\tlost %lu\n",
745 			fp->f_st[1].fr_ads, fp->f_st[1].fr_bads);
746 	PRINTF("ICMP replies:\t%lu\tTCP RSTs sent:\t%lu\n",
747 			fp->f_st[0].fr_ret, fp->f_st[1].fr_ret);
748 	PRINTF("Invalid source(in):\t%lu\n", fp->f_st[0].fr_badsrc);
749 	PRINTF("Result cache hits(in):\t%lu\t(out):\t%lu\n",
750 			fp->f_st[0].fr_chit, fp->f_st[1].fr_chit);
751 	PRINTF("IN Pullups succeeded:\t%lu\tfailed:\t%lu\n",
752 			fp->f_st[0].fr_pull[0], fp->f_st[0].fr_pull[1]);
753 	PRINTF("OUT Pullups succeeded:\t%lu\tfailed:\t%lu\n",
754 			fp->f_st[1].fr_pull[0], fp->f_st[1].fr_pull[1]);
755 	PRINTF("Fastroute successes:\t%lu\tfailures:\t%lu\n",
756 			fp->f_froute[0], fp->f_froute[1]);
757 	PRINTF("TCP cksum fails(in):\t%lu\t(out):\t%lu\n",
758 			fp->f_st[0].fr_tcpbad, fp->f_st[1].fr_tcpbad);
759 	PRINTF("IPF Ticks:\t%lu\n", fp->f_ticks);
760 
761 	PRINTF("Packet log flags set: (%#x)\n", frf);
762 	if (frf & FF_LOGPASS)
763 		PRINTF("\tpackets passed through filter\n");
764 	if (frf & FF_LOGBLOCK)
765 		PRINTF("\tpackets blocked by filter\n");
766 	if (frf & FF_LOGNOMATCH)
767 		PRINTF("\tpackets not matched by filter\n");
768 	if (!frf)
769 		PRINTF("\tnone\n");
770 }
771 
772 
773 /*
774  * Print out a list of rules from the kernel, starting at the one passed.
775  */
776 static void printlivelist(out, set, fp, group, comment)
777 int out, set;
778 frentry_t *fp;
779 char *group, *comment;
780 {
781 	frgroup_t *grtop, *grtail, *g;
782 	struct	frentry	fb, *fg;
783 	int n;
784 	ipfruleiter_t rule;
785 	ipfobj_t obj;
786 
787 	fb.fr_next = fp;
788 	n = 0;
789 
790 	grtop = NULL;
791 	grtail = NULL;
792 	rule.iri_ver = use_inet6? AF_INET6 : AF_INET;
793 	rule.iri_inout = out;
794 	rule.iri_active = set;
795 	rule.iri_nrules = 1;
796 	rule.iri_rule = &fb;
797 	if (group != NULL)
798 		strncpy(rule.iri_group, group, FR_GROUPLEN);
799 	else
800 		rule.iri_group[0] = '\0';
801 
802 	bzero((char *)&obj, sizeof(obj));
803 	obj.ipfo_rev = IPFILTER_VERSION;
804 	obj.ipfo_type = IPFOBJ_IPFITER;
805 	obj.ipfo_size = sizeof(rule);
806 	obj.ipfo_ptr = &rule;
807 
808 	do {
809 		u_long array[1000];
810 
811 		memset(array, 0xff, sizeof(array));
812 		fp = (frentry_t *)array;
813 		rule.iri_rule = fp;
814 		if (ioctl(ipf_fd, SIOCIPFITER, &obj) == -1) {
815 			perror("ioctl(SIOCIPFITER)");
816 			return;
817 		}
818 		if (fp->fr_data != NULL)
819 			fp->fr_data = (char *)fp + sizeof(*fp);
820 
821 		n++;
822 
823 		if (opts & (OPT_HITS|OPT_VERBOSE))
824 #ifdef	USE_QUAD_T
825 			PRINTF("%qu ", (unsigned long long) fp->fr_hits);
826 #else
827 			PRINTF("%lu ", fp->fr_hits);
828 #endif
829 		if (opts & (OPT_ACCNT|OPT_VERBOSE))
830 #ifdef	USE_QUAD_T
831 			PRINTF("%qu ", (unsigned long long) fp->fr_bytes);
832 #else
833 			PRINTF("%lu ", fp->fr_bytes);
834 #endif
835 		if (opts & OPT_SHOWLINENO)
836 			PRINTF("@%d ", n);
837 
838 		printfr(fp, ioctl);
839 		if (opts & OPT_DEBUG) {
840 			binprint(fp, sizeof(*fp));
841 			if (fp->fr_data != NULL && fp->fr_dsize > 0)
842 				binprint(fp->fr_data, fp->fr_dsize);
843 		}
844 
845 		if (fp->fr_grhead[0] != '\0') {
846 			g = calloc(1, sizeof(*g));
847 
848 			if (g != NULL) {
849 				strncpy(g->fg_name, fp->fr_grhead,
850 					FR_GROUPLEN);
851 				if (grtop == NULL) {
852 					grtop = g;
853 					grtail = g;
854 				} else {
855 					grtail->fg_next = g;
856 					grtail = g;
857 				}
858 			}
859 		}
860 	} while (fp->fr_next != NULL);
861 
862 	while ((g = grtop) != NULL) {
863 		printlivelist(out, set, NULL, g->fg_name, comment);
864 		grtop = g->fg_next;
865 		free(g);
866 	}
867 }
868 
869 
870 static void printdeadlist(out, set, fp, group, comment)
871 int out, set;
872 frentry_t *fp;
873 char *group, *comment;
874 {
875 	frgroup_t *grtop, *grtail, *g;
876 	struct	frentry	fb, *fg;
877 	char	*data;
878 	u_32_t	type;
879 	int	n;
880 
881 	fb.fr_next = fp;
882 	n = 0;
883 	grtop = NULL;
884 	grtail = NULL;
885 
886 	do {
887 		fp = fb.fr_next;
888 		if (kmemcpy((char *)&fb, (u_long)fb.fr_next,
889 			    sizeof(fb)) == -1) {
890 			perror("kmemcpy");
891 			return;
892 		}
893 
894 		data = NULL;
895 		type = fb.fr_type & ~FR_T_BUILTIN;
896 		if (type == FR_T_IPF || type == FR_T_BPFOPC) {
897 			if (fb.fr_dsize) {
898 				data = malloc(fb.fr_dsize);
899 
900 				if (kmemcpy(data, (u_long)fb.fr_data,
901 					    fb.fr_dsize) == -1) {
902 					perror("kmemcpy");
903 					return;
904 				}
905 				fb.fr_data = data;
906 			}
907 		}
908 
909 		n++;
910 
911 		if (opts & (OPT_HITS|OPT_VERBOSE))
912 #ifdef	USE_QUAD_T
913 			PRINTF("%qu ", (unsigned long long) fb.fr_hits);
914 #else
915 			PRINTF("%lu ", fb.fr_hits);
916 #endif
917 		if (opts & (OPT_ACCNT|OPT_VERBOSE))
918 #ifdef	USE_QUAD_T
919 			PRINTF("%qu ", (unsigned long long) fb.fr_bytes);
920 #else
921 			PRINTF("%lu ", fb.fr_bytes);
922 #endif
923 		if (opts & OPT_SHOWLINENO)
924 			PRINTF("@%d ", n);
925 
926 		printfr(fp, ioctl);
927 		if (opts & OPT_DEBUG) {
928 			binprint(fp, sizeof(*fp));
929 			if (fb.fr_data != NULL && fb.fr_dsize > 0)
930 				binprint(fb.fr_data, fb.fr_dsize);
931 		}
932 		if (data != NULL)
933 			free(data);
934 		if (fb.fr_grhead[0] != '\0') {
935 			g = calloc(1, sizeof(*g));
936 
937 			if (g != NULL) {
938 				strncpy(g->fg_name, fb.fr_grhead,
939 					FR_GROUPLEN);
940 				if (grtop == NULL) {
941 					grtop = g;
942 					grtail = g;
943 				} else {
944 					grtail->fg_next = g;
945 					grtail = g;
946 				}
947 			}
948 		}
949 		if (type == FR_T_CALLFUNC) {
950 			printdeadlist(out, set, fb.fr_data, group,
951 				      "# callfunc: ");
952 		}
953 	} while (fb.fr_next != NULL);
954 
955 	while ((g = grtop) != NULL) {
956 		printdeadlist(out, set, NULL, g->fg_name, comment);
957 		grtop = g->fg_next;
958 		free(g);
959 	}
960 }
961 
962 
963 /*
964  * print out all of the asked for rule sets, using the stats struct as
965  * the base from which to get the pointers.
966  */
967 static	void	showlist(fiop)
968 struct	friostat	*fiop;
969 {
970 	struct	frentry	*fp = NULL;
971 	int	i, set;
972 
973 	set = fiop->f_active;
974 	if (opts & OPT_INACTIVE)
975 		set = 1 - set;
976 	if (opts & OPT_ACCNT) {
977 #ifdef USE_INET6
978 		if ((use_inet6) && (opts & OPT_OUTQUE)) {
979 			i = F_ACOUT;
980 			fp = (struct frentry *)fiop->f_acctout6[set];
981 		} else if ((use_inet6) && (opts & OPT_INQUE)) {
982 			i = F_ACIN;
983 			fp = (struct frentry *)fiop->f_acctin6[set];
984 		} else
985 #endif
986 		if (opts & OPT_OUTQUE) {
987 			i = F_ACOUT;
988 			fp = (struct frentry *)fiop->f_acctout[set];
989 		} else if (opts & OPT_INQUE) {
990 			i = F_ACIN;
991 			fp = (struct frentry *)fiop->f_acctin[set];
992 		} else {
993 			FPRINTF(stderr, "No -i or -o given with -a\n");
994 			return;
995 		}
996 	} else {
997 #ifdef	USE_INET6
998 		if ((use_inet6) && (opts & OPT_OUTQUE)) {
999 			i = F_OUT;
1000 			fp = (struct frentry *)fiop->f_fout6[set];
1001 		} else if ((use_inet6) && (opts & OPT_INQUE)) {
1002 			i = F_IN;
1003 			fp = (struct frentry *)fiop->f_fin6[set];
1004 		} else
1005 #endif
1006 		if (opts & OPT_OUTQUE) {
1007 			i = F_OUT;
1008 			fp = (struct frentry *)fiop->f_fout[set];
1009 		} else if (opts & OPT_INQUE) {
1010 			i = F_IN;
1011 			fp = (struct frentry *)fiop->f_fin[set];
1012 		} else
1013 			return;
1014 	}
1015 	if (opts & OPT_VERBOSE)
1016 		FPRINTF(stderr, "showlist:opts %#x i %d\n", opts, i);
1017 
1018 	if (opts & OPT_VERBOSE)
1019 		PRINTF("fp %p set %d\n", fp, set);
1020 	if (!fp) {
1021 		FPRINTF(stderr, "empty list for %s%s\n",
1022 			(opts & OPT_INACTIVE) ? "inactive " : "", filters[i]);
1023 		return;
1024 	}
1025 	if (live_kernel == 1)
1026 		printlivelist(i, set, fp, NULL, NULL);
1027 	else
1028 		printdeadlist(i, set, fp, NULL, NULL);
1029 }
1030 
1031 
1032 /*
1033  * Display ipfilter stateful filtering information
1034  */
1035 static void showipstates(ipsp)
1036 ips_stat_t *ipsp;
1037 {
1038 	u_long minlen, maxlen, totallen, *buckets;
1039 	int i, sz;
1040 
1041 	sz = sizeof(*buckets) * ipsp->iss_statesize;
1042 	buckets = (u_long *)malloc(sz);
1043 	if (buckets == NULL) {
1044 		perror("malloc");
1045 		exit(1);
1046 	}
1047 	if (kmemcpy((char *)buckets, (u_long)ipsp->iss_bucketlen, sz)) {
1048 		free(buckets);
1049 		return;
1050 	}
1051 
1052 	/*
1053 	 * If a list of states hasn't been asked for, only print out stats
1054 	 */
1055 	if (!(opts & OPT_SHOWLIST)) {
1056 		PRINTF("IP states added:\n\t%lu TCP\n\t%lu UDP\n\t%lu ICMP\n",
1057 			ipsp->iss_tcp, ipsp->iss_udp, ipsp->iss_icmp);
1058 		PRINTF("\t%lu hits\n\t%lu misses\n",
1059 			ipsp->iss_hits, ipsp->iss_miss);
1060 		PRINTF("\t%lu maximum\n\t%lu no memory\n", ipsp->iss_max,
1061 			ipsp->iss_nomem);
1062 		PRINTF("\t%lu active\n\t%lu expired\n",
1063 			ipsp->iss_active, ipsp->iss_expire);
1064 		PRINTF("\t%lu closed\n\t%u orphans\n",
1065 			ipsp->iss_fin, ipsp->iss_orphans);
1066 
1067 		PRINTF("State logging %sabled\n",
1068 			state_logging ? "en" : "dis");
1069 
1070 		PRINTF("\nState table bucket statistics:\n");
1071 		PRINTF("\t%lu in use\n\t%lu max bucket\n", ipsp->iss_inuse,
1072 			ipsp->iss_bucketfull);
1073 
1074 		minlen = ipsp->iss_max;
1075 		totallen = 0;
1076 		maxlen = 0;
1077 
1078 		for (i = 0; i < ipsp->iss_statesize; i++) {
1079 			if (buckets[i] > maxlen)
1080 				maxlen = buckets[i];
1081 			if (buckets[i] < minlen)
1082 					minlen = buckets[i];
1083 			totallen += buckets[i];
1084 		}
1085 
1086 		PRINTF("\t%2.2f%% bucket usage\n\t%lu minimal length\n",
1087 			((float)ipsp->iss_inuse / ipsp->iss_statesize) * 100.0,
1088 			minlen);
1089 		PRINTF("\t%lu maximal length\n\t%.3f average length\n",
1090 			maxlen,
1091 			ipsp->iss_inuse ? (float) totallen/ ipsp->iss_inuse :
1092 					  0.0);
1093 
1094 #define ENTRIES_PER_LINE 5
1095 
1096 		if (opts & OPT_VERBOSE) {
1097 			PRINTF("\nCurrent bucket sizes :\n");
1098 			for (i = 0; i < ipsp->iss_statesize; i++) {
1099 				if ((i % ENTRIES_PER_LINE) == 0)
1100 					PRINTF("\t");
1101 				PRINTF("%4d -> %4lu", i, buckets[i]);
1102 				if ((i % ENTRIES_PER_LINE) ==
1103 				    (ENTRIES_PER_LINE - 1))
1104 					PRINTF("\n");
1105 				else
1106 					PRINTF("  ");
1107 			}
1108 			PRINTF("\n");
1109 		}
1110 		PRINTF("\n");
1111 
1112 		free(buckets);
1113 		return;
1114 	}
1115 
1116 	/*
1117 	 * Print out all the state information currently held in the kernel.
1118 	 */
1119 	while (ipsp->iss_list != NULL) {
1120 		ipsp->iss_list = printstate(ipsp->iss_list, opts,
1121 					    ipsp->iss_ticks);
1122 	}
1123 
1124 	free(buckets);
1125 }
1126 
1127 
1128 #ifdef STATETOP
1129 static int handle_resize = 0, handle_break = 0;
1130 
1131 static void topipstates(saddr, daddr, sport, dport, protocol, ver,
1132 		        refreshtime, topclosed)
1133 i6addr_t saddr;
1134 i6addr_t daddr;
1135 int sport;
1136 int dport;
1137 int protocol;
1138 int ver;
1139 int refreshtime;
1140 int topclosed;
1141 {
1142 	char str1[STSTRSIZE], str2[STSTRSIZE], str3[STSTRSIZE], str4[STSTRSIZE];
1143 	int maxtsentries = 0, reverse = 0, sorting = STSORT_DEFAULT;
1144 	int i, j, winy, tsentry, maxx, maxy, redraw = 0, ret = 0;
1145 	int len, srclen, dstlen, forward = 1, c = 0;
1146 	ips_stat_t ipsst, *ipsstp = &ipsst;
1147 	statetop_t *tstable = NULL, *tp;
1148 	const char *errstr = "";
1149 	ipstate_t ips;
1150 	ipfobj_t ipfo;
1151 	struct timeval selecttimeout;
1152 	char hostnm[HOSTNMLEN];
1153 	struct protoent *proto;
1154 	fd_set readfd;
1155 	time_t t;
1156 
1157 	/* install signal handlers */
1158 	signal(SIGINT, sig_break);
1159 	signal(SIGQUIT, sig_break);
1160 	signal(SIGTERM, sig_break);
1161 	signal(SIGWINCH, sig_resize);
1162 
1163 	/* init ncurses stuff */
1164   	initscr();
1165   	cbreak();
1166   	noecho();
1167 	curs_set(0);
1168 	timeout(0);
1169 	getmaxyx(stdscr, maxy, maxx);
1170 
1171 	/* init hostname */
1172 	gethostname(hostnm, sizeof(hostnm) - 1);
1173 	hostnm[sizeof(hostnm) - 1] = '\0';
1174 
1175 	/* init ipfobj_t stuff */
1176 	bzero((caddr_t)&ipfo, sizeof(ipfo));
1177 	ipfo.ipfo_rev = IPFILTER_VERSION;
1178 	ipfo.ipfo_size = sizeof(*ipsstp);
1179 	ipfo.ipfo_ptr = (void *)ipsstp;
1180 	ipfo.ipfo_type = IPFOBJ_STATESTAT;
1181 
1182 	/* repeat until user aborts */
1183 	while ( 1 ) {
1184 
1185 		/* get state table */
1186 		bzero((char *)&ipsst, sizeof(ipsst));
1187 		if ((ioctl(state_fd, SIOCGETFS, &ipfo) == -1)) {
1188 			errstr = "ioctl(SIOCGETFS)";
1189 			ret = -1;
1190 			goto out;
1191 		}
1192 
1193 		/* clear the history */
1194 		tsentry = -1;
1195 
1196 		/* reset max str len */
1197 		srclen = dstlen = 0;
1198 
1199 		/* read the state table and store in tstable */
1200 		for (; ipsstp->iss_list; ipsstp->iss_list = ips.is_next) {
1201 
1202 			if (kmemcpy((char *)&ips, (u_long)ipsstp->iss_list,
1203 				    sizeof(ips)))
1204 				break;
1205 
1206 			if (ips.is_v != ver)
1207 				continue;
1208 
1209 			/* check v4 src/dest addresses */
1210 			if (ips.is_v == 4) {
1211 				if ((saddr.in4.s_addr != INADDR_ANY &&
1212 				     saddr.in4.s_addr != ips.is_saddr) ||
1213 				    (daddr.in4.s_addr != INADDR_ANY &&
1214 				     daddr.in4.s_addr != ips.is_daddr))
1215 					continue;
1216 			}
1217 #ifdef	USE_INET6
1218 			/* check v6 src/dest addresses */
1219 			if (ips.is_v == 6) {
1220 				if ((IP6_NEQ(&saddr, &in6addr_any) &&
1221 				     IP6_NEQ(&saddr, &ips.is_src)) ||
1222 				    (IP6_NEQ(&daddr, &in6addr_any) &&
1223 				     IP6_NEQ(&daddr, &ips.is_dst)))
1224 					continue;
1225 			}
1226 #endif
1227 			/* check protocol */
1228 			if (protocol > 0 && protocol != ips.is_p)
1229 				continue;
1230 
1231 			/* check ports if protocol is TCP or UDP */
1232 			if (((ips.is_p == IPPROTO_TCP) ||
1233 			     (ips.is_p == IPPROTO_UDP)) &&
1234 			   (((sport > 0) && (htons(sport) != ips.is_sport)) ||
1235 			    ((dport > 0) && (htons(dport) != ips.is_dport))))
1236 				continue;
1237 
1238 			/* show closed TCP sessions ? */
1239 			if ((topclosed == 0) && (ips.is_p == IPPROTO_TCP) &&
1240 			    (ips.is_state[0] >= IPF_TCPS_LAST_ACK) &&
1241 			    (ips.is_state[1] >= IPF_TCPS_LAST_ACK))
1242 				continue;
1243 
1244 			/*
1245 			 * if necessary make room for this state
1246 			 * entry
1247 			 */
1248 			tsentry++;
1249 			if (!maxtsentries || tsentry == maxtsentries) {
1250 				maxtsentries += STGROWSIZE;
1251 				tstable = realloc(tstable,
1252 				    maxtsentries * sizeof(statetop_t));
1253 				if (tstable == NULL) {
1254 					perror("realloc");
1255 					exit(-1);
1256 				}
1257 			}
1258 
1259 			/* get max src/dest address string length */
1260 			len = strlen(getip(ips.is_v, &ips.is_src));
1261 			if (srclen < len)
1262 				srclen = len;
1263 			len = strlen(getip(ips.is_v, &ips.is_dst));
1264 			if (dstlen < len)
1265 				dstlen = len;
1266 
1267 			/* fill structure */
1268 			tp = tstable + tsentry;
1269 			tp->st_src = ips.is_src;
1270 			tp->st_dst = ips.is_dst;
1271 			tp->st_p = ips.is_p;
1272 			tp->st_v = ips.is_v;
1273 			tp->st_state[0] = ips.is_state[0];
1274 			tp->st_state[1] = ips.is_state[1];
1275 			if (forward) {
1276 				tp->st_pkts = ips.is_pkts[0]+ips.is_pkts[1];
1277 				tp->st_bytes = ips.is_bytes[0]+ips.is_bytes[1];
1278 			} else {
1279 				tp->st_pkts = ips.is_pkts[2]+ips.is_pkts[3];
1280 				tp->st_bytes = ips.is_bytes[2]+ips.is_bytes[3];
1281 			}
1282 			tp->st_age = ips.is_die - ipsstp->iss_ticks;
1283 			if ((ips.is_p == IPPROTO_TCP) ||
1284 			    (ips.is_p == IPPROTO_UDP)) {
1285 				tp->st_sport = ips.is_sport;
1286 				tp->st_dport = ips.is_dport;
1287 			}
1288 		}
1289 
1290 
1291 		/* sort the array */
1292 		if (tsentry != -1) {
1293 			switch (sorting)
1294 			{
1295 			case STSORT_PR:
1296 				qsort(tstable, tsentry + 1,
1297 				      sizeof(statetop_t), sort_p);
1298 				break;
1299 			case STSORT_PKTS:
1300 				qsort(tstable, tsentry + 1,
1301 				      sizeof(statetop_t), sort_pkts);
1302 				break;
1303 			case STSORT_BYTES:
1304 				qsort(tstable, tsentry + 1,
1305 				      sizeof(statetop_t), sort_bytes);
1306 				break;
1307 			case STSORT_TTL:
1308 				qsort(tstable, tsentry + 1,
1309 				      sizeof(statetop_t), sort_ttl);
1310 				break;
1311 			case STSORT_SRCIP:
1312 				qsort(tstable, tsentry + 1,
1313 				      sizeof(statetop_t), sort_srcip);
1314 				break;
1315 			case STSORT_SRCPT:
1316 				qsort(tstable, tsentry +1,
1317 					sizeof(statetop_t), sort_srcpt);
1318 				break;
1319 			case STSORT_DSTIP:
1320 				qsort(tstable, tsentry + 1,
1321 				      sizeof(statetop_t), sort_dstip);
1322 				break;
1323 			case STSORT_DSTPT:
1324 				qsort(tstable, tsentry + 1,
1325 				      sizeof(statetop_t), sort_dstpt);
1326 				break;
1327 			default:
1328 				break;
1329 			}
1330 		}
1331 
1332 		/* handle window resizes */
1333 		if (handle_resize) {
1334 			endwin();
1335 			initscr();
1336 			cbreak();
1337 			noecho();
1338 			curs_set(0);
1339 			timeout(0);
1340 			getmaxyx(stdscr, maxy, maxx);
1341 			redraw = 1;
1342 			handle_resize = 0;
1343                 }
1344 
1345 		/* stop program? */
1346 		if (handle_break)
1347 			break;
1348 
1349 		/* print title */
1350 		erase();
1351 		attron(A_BOLD);
1352 		winy = 0;
1353 		move(winy,0);
1354 		sprintf(str1, "%s - %s - state top", hostnm, IPL_VERSION);
1355 		for (j = 0 ; j < (maxx - 8 - strlen(str1)) / 2; j++)
1356 			printw(" ");
1357 		printw("%s", str1);
1358 		attroff(A_BOLD);
1359 
1360 		/* just for fun add a clock */
1361 		move(winy, maxx - 8);
1362 		t = time(NULL);
1363 		strftime(str1, 80, "%T", localtime(&t));
1364 		printw("%s\n", str1);
1365 
1366 		/*
1367 		 * print the display filters, this is placed in the loop,
1368 		 * because someday I might add code for changing these
1369 		 * while the programming is running :-)
1370 		 */
1371 		if (sport >= 0)
1372 			sprintf(str1, "%s,%d", getip(ver, &saddr), sport);
1373 		else
1374 			sprintf(str1, "%s", getip(ver, &saddr));
1375 
1376 		if (dport >= 0)
1377 			sprintf(str2, "%s,%d", getip(ver, &daddr), dport);
1378 		else
1379 			sprintf(str2, "%s", getip(ver, &daddr));
1380 
1381 		if (protocol < 0)
1382 			strcpy(str3, "any");
1383 		else if ((proto = getprotobynumber(protocol)) != NULL)
1384 			sprintf(str3, "%s", proto->p_name);
1385 		else
1386 			sprintf(str3, "%d", protocol);
1387 
1388 		switch (sorting)
1389 		{
1390 		case STSORT_PR:
1391 			sprintf(str4, "proto");
1392 			break;
1393 		case STSORT_PKTS:
1394 			sprintf(str4, "# pkts");
1395 			break;
1396 		case STSORT_BYTES:
1397 			sprintf(str4, "# bytes");
1398 			break;
1399 		case STSORT_TTL:
1400 			sprintf(str4, "ttl");
1401 			break;
1402 		case STSORT_SRCIP:
1403 			sprintf(str4, "src ip");
1404 			break;
1405 		case STSORT_SRCPT:
1406 			sprintf(str4, "src port");
1407 			break;
1408 		case STSORT_DSTIP:
1409 			sprintf(str4, "dest ip");
1410 			break;
1411 		case STSORT_DSTPT:
1412 			sprintf(str4, "dest port");
1413 			break;
1414 		default:
1415 			sprintf(str4, "unknown");
1416 			break;
1417 		}
1418 
1419 		if (reverse)
1420 			strcat(str4, " (reverse)");
1421 
1422 		winy += 2;
1423 		move(winy,0);
1424 		printw("Src: %s, Dest: %s, Proto: %s, Sorted by: %s\n\n",
1425 		       str1, str2, str3, str4);
1426 
1427 		/*
1428 		 * For an IPv4 IP address we need at most 15 characters,
1429 		 * 4 tuples of 3 digits, separated by 3 dots. Enforce this
1430 		 * length, so the colums do not change positions based
1431 		 * on the size of the IP address. This length makes the
1432 		 * output fit in a 80 column terminal.
1433 		 * We are lacking a good solution for IPv6 addresses (that
1434 		 * can be longer that 15 characters), so we do not enforce
1435 		 * a maximum on the IP field size.
1436 		 */
1437 		if (srclen < 15)
1438 			srclen = 15;
1439 		if (dstlen < 15)
1440 			dstlen = 15;
1441 
1442 		/* print column description */
1443 		winy += 2;
1444 		move(winy,0);
1445 		attron(A_BOLD);
1446 		printw("%-*s %-*s %3s %4s %7s %9s %9s\n",
1447 		       srclen + 6, "Source IP", dstlen + 6, "Destination IP",
1448 		       "ST", "PR", "#pkts", "#bytes", "ttl");
1449 		attroff(A_BOLD);
1450 
1451 		/* print all the entries */
1452 		tp = tstable;
1453 		if (reverse)
1454 			tp += tsentry;
1455 
1456 		if (tsentry > maxy - 6)
1457 			tsentry = maxy - 6;
1458 		for (i = 0; i <= tsentry; i++) {
1459 			/* print src/dest and port */
1460 			if ((tp->st_p == IPPROTO_TCP) ||
1461 			    (tp->st_p == IPPROTO_UDP)) {
1462 				sprintf(str1, "%s,%hu",
1463 					getip(tp->st_v, &tp->st_src),
1464 					ntohs(tp->st_sport));
1465 				sprintf(str2, "%s,%hu",
1466 					getip(tp->st_v, &tp->st_dst),
1467 					ntohs(tp->st_dport));
1468 			} else {
1469 				sprintf(str1, "%s", getip(tp->st_v,
1470 				    &tp->st_src));
1471 				sprintf(str2, "%s", getip(tp->st_v,
1472 				    &tp->st_dst));
1473 			}
1474 			winy++;
1475 			move(winy, 0);
1476 			printw("%-*s %-*s", srclen + 6, str1, dstlen + 6, str2);
1477 
1478 			/* print state */
1479 			sprintf(str1, "%X/%X", tp->st_state[0],
1480 				tp->st_state[1]);
1481 			printw(" %3s", str1);
1482 
1483 			/* print protocol */
1484 			proto = getprotobynumber(tp->st_p);
1485 			if (proto) {
1486 				strncpy(str1, proto->p_name, 4);
1487 				str1[4] = '\0';
1488 			} else {
1489 				sprintf(str1, "%d", tp->st_p);
1490 			}
1491 			/* just print icmp for IPv6-ICMP */
1492 			if (tp->st_p == IPPROTO_ICMPV6)
1493 				strcpy(str1, "icmp");
1494 			printw(" %4s", str1);
1495 
1496 			/* print #pkt/#bytes */
1497 #ifdef	USE_QUAD_T
1498 			printw(" %7qu %9qu", (unsigned long long) tp->st_pkts,
1499 				(unsigned long long) tp->st_bytes);
1500 #else
1501 			printw(" %7lu %9lu", tp->st_pkts, tp->st_bytes);
1502 #endif
1503 			printw(" %9s", ttl_to_string(tp->st_age));
1504 
1505 			if (reverse)
1506 				tp--;
1507 			else
1508 				tp++;
1509 		}
1510 
1511 		/* screen data structure is filled, now update the screen */
1512 		if (redraw)
1513 			clearok(stdscr,1);
1514 
1515 		if (refresh() == ERR)
1516 			break;
1517 		if (redraw) {
1518 			clearok(stdscr,0);
1519 			redraw = 0;
1520 		}
1521 
1522 		/* wait for key press or a 1 second time out period */
1523 		selecttimeout.tv_sec = refreshtime;
1524 		selecttimeout.tv_usec = 0;
1525 		FD_ZERO(&readfd);
1526 		FD_SET(0, &readfd);
1527 		select(1, &readfd, NULL, NULL, &selecttimeout);
1528 
1529 		/* if key pressed, read all waiting keys */
1530 		if (FD_ISSET(0, &readfd)) {
1531 			c = wgetch(stdscr);
1532 			if (c == ERR)
1533 				continue;
1534 
1535 			if (ISALPHA(c) && ISUPPER(c))
1536 				c = TOLOWER(c);
1537 			if (c == 'l') {
1538 				redraw = 1;
1539 			} else if (c == 'q') {
1540 				break;
1541 			} else if (c == 'r') {
1542 				reverse = !reverse;
1543 			} else if (c == 'b') {
1544 				forward = 0;
1545 			} else if (c == 'f') {
1546 				forward = 1;
1547 			} else if (c == 's') {
1548 				if (++sorting > STSORT_MAX)
1549 					sorting = 0;
1550 			}
1551 		}
1552 	} /* while */
1553 
1554 out:
1555 	printw("\n");
1556 	refresh();
1557 	endwin();
1558 	free(tstable);
1559 	if (ret != 0)
1560 		perror(errstr);
1561 }
1562 #endif
1563 
1564 
1565 /*
1566  * Show fragment cache information that's held in the kernel.
1567  */
1568 static void showfrstates(ifsp, ticks)
1569 ipfrstat_t *ifsp;
1570 u_long ticks;
1571 {
1572 	struct ipfr *ipfrtab[IPFT_SIZE], ifr;
1573 	int i;
1574 
1575 	/*
1576 	 * print out the numeric statistics
1577 	 */
1578 	PRINTF("IP fragment states:\n\t%lu new\n\t%lu expired\n\t%lu hits\n",
1579 		ifsp->ifs_new, ifsp->ifs_expire, ifsp->ifs_hits);
1580 	PRINTF("\t%lu retrans\n\t%lu too short\n",
1581 		ifsp->ifs_retrans0, ifsp->ifs_short);
1582 	PRINTF("\t%lu no memory\n\t%lu already exist\n",
1583 		ifsp->ifs_nomem, ifsp->ifs_exists);
1584 	PRINTF("\t%lu inuse\n", ifsp->ifs_inuse);
1585 	if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_table, sizeof(ipfrtab)))
1586 		return;
1587 
1588 	/*
1589 	 * Print out the contents (if any) of the fragment cache table.
1590 	 */
1591 	PRINTF("\n");
1592 	for (i = 0; i < IPFT_SIZE; i++)
1593 		while (ipfrtab[i] != NULL) {
1594 			if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
1595 				    sizeof(ifr)) == -1)
1596 				break;
1597 			ifr.ipfr_ttl -= ticks;
1598 			printfraginfo("", &ifr);
1599 			ipfrtab[i] = ifr.ipfr_next;
1600 		}
1601 	/*
1602 	 * Print out the contents (if any) of the NAT fragment cache table.
1603 	 */
1604 	if (kmemcpy((char *)ipfrtab, (u_long)ifsp->ifs_nattab,sizeof(ipfrtab)))
1605 		return;
1606 	for (i = 0; i < IPFT_SIZE; i++)
1607 		while (ipfrtab[i] != NULL) {
1608 			if (kmemcpy((char *)&ifr, (u_long)ipfrtab[i],
1609 				    sizeof(ifr)) == -1)
1610 				break;
1611 			ifr.ipfr_ttl -= ticks;
1612 			printfraginfo("NAT: ", &ifr);
1613 			ipfrtab[i] = ifr.ipfr_next;
1614 		}
1615 }
1616 
1617 
1618 /*
1619  * Show stats on how auth within IPFilter has been used
1620  */
1621 static void showauthstates(asp)
1622 fr_authstat_t *asp;
1623 {
1624 	frauthent_t *frap, fra;
1625 
1626 #ifdef	USE_QUAD_T
1627 	printf("Authorisation hits: %qu\tmisses %qu\n",
1628 		(unsigned long long) asp->fas_hits,
1629 		(unsigned long long) asp->fas_miss);
1630 #else
1631 	printf("Authorisation hits: %ld\tmisses %ld\n", asp->fas_hits,
1632 		asp->fas_miss);
1633 #endif
1634 	printf("nospace %ld\nadded %ld\nsendfail %ld\nsendok %ld\n",
1635 		asp->fas_nospace, asp->fas_added, asp->fas_sendfail,
1636 		asp->fas_sendok);
1637 	printf("queok %ld\nquefail %ld\nexpire %ld\n",
1638 		asp->fas_queok, asp->fas_quefail, asp->fas_expire);
1639 
1640 	frap = asp->fas_faelist;
1641 	while (frap) {
1642 		if (kmemcpy((char *)&fra, (u_long)frap, sizeof(fra)) == -1)
1643 			break;
1644 
1645 		printf("age %ld\t", fra.fae_age);
1646 		printfr(&fra.fae_fr, ioctl);
1647 		frap = fra.fae_next;
1648 	}
1649 }
1650 
1651 
1652 /*
1653  * Display groups used for each of filter rules, accounting rules and
1654  * authentication, separately.
1655  */
1656 static void showgroups(fiop)
1657 struct friostat	*fiop;
1658 {
1659 	static char *gnames[3] = { "Filter", "Accounting", "Authentication" };
1660 	static int gnums[3] = { IPL_LOGIPF, IPL_LOGCOUNT, IPL_LOGAUTH };
1661 	frgroup_t *fp, grp;
1662 	int on, off, i;
1663 
1664 	on = fiop->f_active;
1665 	off = 1 - on;
1666 
1667 	for (i = 0; i < 3; i++) {
1668 		printf("%s groups (active):\n", gnames[i]);
1669 		for (fp = fiop->f_groups[gnums[i]][on]; fp != NULL;
1670 		     fp = grp.fg_next)
1671 			if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
1672 				break;
1673 			else
1674 				printf("%s\n", grp.fg_name);
1675 		printf("%s groups (inactive):\n", gnames[i]);
1676 		for (fp = fiop->f_groups[gnums[i]][off]; fp != NULL;
1677 		     fp = grp.fg_next)
1678 			if (kmemcpy((char *)&grp, (u_long)fp, sizeof(grp)))
1679 				break;
1680 			else
1681 				printf("%s\n", grp.fg_name);
1682 	}
1683 }
1684 
1685 static void parse_ipportstr(argument, ip, port)
1686 const char *argument;
1687 i6addr_t *ip;
1688 int *port;
1689 {
1690 	char *s, *comma;
1691 	int ok = 0;
1692 
1693 	/* make working copy of argument, Theoretically you must be able
1694 	 * to write to optarg, but that seems very ugly to me....
1695 	 */
1696 	s = strdup(argument);
1697 	if (s == NULL)
1698 		return;
1699 
1700 	/* get port */
1701 	if ((comma = strchr(s, ',')) != NULL) {
1702 		if (!strcasecmp(comma + 1, "any")) {
1703 			*port = -1;
1704 		} else if (!sscanf(comma + 1, "%d", port) ||
1705 			   (*port < 0) || (*port > 65535)) {
1706 			fprintf(stderr, "Invalid port specfication in %s\n",
1707 				argument);
1708 			free(s);
1709 			exit(-2);
1710 		}
1711 		*comma = '\0';
1712 	}
1713 
1714 
1715 	/* get ip address */
1716 	if (!strcasecmp(s, "any")) {
1717 		ip->in4.s_addr = INADDR_ANY;
1718 #ifdef	USE_INET6
1719 		ip->in6 = in6addr_any;
1720 	} else if (use_inet6 && inet_pton(AF_INET6, s, &ip->in6)) {
1721 		ok = 1;
1722 #endif
1723 	} else if (inet_aton(s, &ip->in4))
1724 		ok = 1;
1725 
1726 	if (ok == 0) {
1727 		fprintf(stderr, "Invalid IP address: %s\n", s);
1728 		free(s);
1729 		exit(-2);
1730 	}
1731 
1732 	/* free allocated memory */
1733 	free(s);
1734 }
1735 
1736 
1737 #ifdef STATETOP
1738 static void sig_resize(s)
1739 int s;
1740 {
1741 	handle_resize = 1;
1742 }
1743 
1744 static void sig_break(s)
1745 int s;
1746 {
1747 	handle_break = 1;
1748 }
1749 
1750 static char *getip(v, addr)
1751 int v;
1752 i6addr_t *addr;
1753 {
1754 #ifdef  USE_INET6
1755 	static char hostbuf[MAXHOSTNAMELEN+1];
1756 #endif
1757 
1758 	if (v == 4)
1759 		return inet_ntoa(addr->in4);
1760 
1761 #ifdef  USE_INET6
1762 	(void) inet_ntop(AF_INET6, &addr->in6, hostbuf, sizeof(hostbuf) - 1);
1763 	hostbuf[MAXHOSTNAMELEN] = '\0';
1764 	return hostbuf;
1765 #else
1766 	return "IPv6";
1767 #endif
1768 }
1769 
1770 
1771 static char *ttl_to_string(ttl)
1772 long int ttl;
1773 {
1774 	static char ttlbuf[STSTRSIZE];
1775 	int hours, minutes, seconds;
1776 
1777 	/* ttl is in half seconds */
1778 	ttl /= 2;
1779 
1780 	hours = ttl / 3600;
1781 	ttl = ttl % 3600;
1782 	minutes = ttl / 60;
1783 	seconds = ttl % 60;
1784 
1785 	if (hours > 0)
1786 		sprintf(ttlbuf, "%2d:%02d:%02d", hours, minutes, seconds);
1787 	else
1788 		sprintf(ttlbuf, "%2d:%02d", minutes, seconds);
1789 	return ttlbuf;
1790 }
1791 
1792 
1793 static int sort_pkts(a, b)
1794 const void *a;
1795 const void *b;
1796 {
1797 
1798 	register const statetop_t *ap = a;
1799 	register const statetop_t *bp = b;
1800 
1801 	if (ap->st_pkts == bp->st_pkts)
1802 		return 0;
1803 	else if (ap->st_pkts < bp->st_pkts)
1804 		return 1;
1805 	return -1;
1806 }
1807 
1808 
1809 static int sort_bytes(a, b)
1810 const void *a;
1811 const void *b;
1812 {
1813 	register const statetop_t *ap = a;
1814 	register const statetop_t *bp = b;
1815 
1816 	if (ap->st_bytes == bp->st_bytes)
1817 		return 0;
1818 	else if (ap->st_bytes < bp->st_bytes)
1819 		return 1;
1820 	return -1;
1821 }
1822 
1823 
1824 static int sort_p(a, b)
1825 const void *a;
1826 const void *b;
1827 {
1828 	register const statetop_t *ap = a;
1829 	register const statetop_t *bp = b;
1830 
1831 	if (ap->st_p == bp->st_p)
1832 		return 0;
1833 	else if (ap->st_p < bp->st_p)
1834 		return 1;
1835 	return -1;
1836 }
1837 
1838 
1839 static int sort_ttl(a, b)
1840 const void *a;
1841 const void *b;
1842 {
1843 	register const statetop_t *ap = a;
1844 	register const statetop_t *bp = b;
1845 
1846 	if (ap->st_age == bp->st_age)
1847 		return 0;
1848 	else if (ap->st_age < bp->st_age)
1849 		return 1;
1850 	return -1;
1851 }
1852 
1853 static int sort_srcip(a, b)
1854 const void *a;
1855 const void *b;
1856 {
1857 	register const statetop_t *ap = a;
1858 	register const statetop_t *bp = b;
1859 
1860 #ifdef USE_INET6
1861 	if (use_inet6) {
1862 		if (IP6_EQ(&ap->st_src, &bp->st_src))
1863 			return 0;
1864 		else if (IP6_GT(&ap->st_src, &bp->st_src))
1865 			return 1;
1866 	} else
1867 #endif
1868 	{
1869 		if (ntohl(ap->st_src.in4.s_addr) ==
1870 		    ntohl(bp->st_src.in4.s_addr))
1871 			return 0;
1872 		else if (ntohl(ap->st_src.in4.s_addr) >
1873 		         ntohl(bp->st_src.in4.s_addr))
1874 			return 1;
1875 	}
1876 	return -1;
1877 }
1878 
1879 static int sort_srcpt(a, b)
1880 const void *a;
1881 const void *b;
1882 {
1883 	register const statetop_t *ap = a;
1884 	register const statetop_t *bp = b;
1885 
1886 	if (htons(ap->st_sport) == htons(bp->st_sport))
1887 		return 0;
1888 	else if (htons(ap->st_sport) > htons(bp->st_sport))
1889 		return 1;
1890 	return -1;
1891 }
1892 
1893 static int sort_dstip(a, b)
1894 const void *a;
1895 const void *b;
1896 {
1897 	register const statetop_t *ap = a;
1898 	register const statetop_t *bp = b;
1899 
1900 #ifdef USE_INET6
1901 	if (use_inet6) {
1902 		if (IP6_EQ(&ap->st_dst, &bp->st_dst))
1903 			return 0;
1904 		else if (IP6_GT(&ap->st_dst, &bp->st_dst))
1905 			return 1;
1906 	} else
1907 #endif
1908 	{
1909 		if (ntohl(ap->st_dst.in4.s_addr) ==
1910 		    ntohl(bp->st_dst.in4.s_addr))
1911 			return 0;
1912 		else if (ntohl(ap->st_dst.in4.s_addr) >
1913 		         ntohl(bp->st_dst.in4.s_addr))
1914 			return 1;
1915 	}
1916 	return -1;
1917 }
1918 
1919 static int sort_dstpt(a, b)
1920 const void *a;
1921 const void *b;
1922 {
1923 	register const statetop_t *ap = a;
1924 	register const statetop_t *bp = b;
1925 
1926 	if (htons(ap->st_dport) == htons(bp->st_dport))
1927 		return 0;
1928 	else if (htons(ap->st_dport) > htons(bp->st_dport))
1929 		return 1;
1930 	return -1;
1931 }
1932 
1933 #endif
1934