2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2015-2019 Yandex LLC
5 * Copyright (c) 2015-2016 Alexander V. Chernikov <melifaro@FreeBSD.org>
6 * Copyright (c) 2015-2019 Andrey V. Elsukov <ae@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/types.h>
34 #include <sys/socket.h>
49 #include <netinet/in.h>
50 #include <netinet/ip_fw.h>
51 #include <netinet6/ip_fw_nat64.h>
52 #include <arpa/inet.h>
54 static void nat64lsn_fill_ntlv(ipfw_obj_ntlv *ntlv, const char *name,
56 typedef int (nat64lsn_cb_t)(ipfw_nat64lsn_cfg *cfg, const char *name,
58 static int nat64lsn_foreach(nat64lsn_cb_t *f, const char *name, uint8_t set,
61 static void nat64lsn_create(const char *name, uint8_t set, int ac, char **av);
62 static void nat64lsn_config(const char *name, uint8_t set, int ac, char **av);
63 static void nat64lsn_destroy(const char *name, uint8_t set);
64 static void nat64lsn_stats(const char *name, uint8_t set);
65 static void nat64lsn_reset_stats(const char *name, uint8_t set);
66 static int nat64lsn_show_cb(ipfw_nat64lsn_cfg *cfg, const char *name,
68 static int nat64lsn_destroy_cb(ipfw_nat64lsn_cfg *cfg, const char *name,
70 static int nat64lsn_states_cb(ipfw_nat64lsn_cfg *cfg, const char *name,
73 static struct _s_x nat64cmds[] = {
74 { "create", TOK_CREATE },
75 { "config", TOK_CONFIG },
76 { "destroy", TOK_DESTROY },
79 { "stats", TOK_STATS },
84 nat64lsn_print_states(void *buf)
86 char s[INET6_ADDRSTRLEN], a[INET_ADDRSTRLEN], f[INET_ADDRSTRLEN];
87 char sflags[4], *sf, *proto;
90 ipfw_nat64lsn_stg_v1 *stg;
91 ipfw_nat64lsn_state_v1 *ste;
95 oh = (ipfw_obj_header *)buf;
96 od = (ipfw_obj_data *)(oh + 1);
97 stg = (ipfw_nat64lsn_stg_v1 *)(od + 1);
98 sz = od->head.length - sizeof(*od);
100 while (sz > 0 && next_idx != 0xFF) {
101 next_idx = stg->next.index;
103 if (stg->count == 0) {
108 * NOTE: addresses are in network byte order,
109 * ports are in host byte order.
111 inet_ntop(AF_INET, &stg->alias4, a, sizeof(a));
112 ste = (ipfw_nat64lsn_state_v1 *)(stg + 1);
113 for (i = 0; i < stg->count && sz > 0; i++) {
115 inet_ntop(AF_INET6, &ste->host6, s, sizeof(s));
116 inet_ntop(AF_INET, &ste->daddr, f, sizeof(f));
117 switch (ste->proto) {
120 if (ste->flags & 0x02)
122 if (ste->flags & 0x04)
124 if (ste->flags & 0x01)
135 switch (ste->proto) {
138 printf("%s:%d\t%s:%d\t%s\t%s\t%d\t%s:%d\n",
139 s, ste->sport, a, ste->aport, proto,
140 sflags, ste->idle, f, ste->dport);
143 printf("%s\t%s\t%s\t\t%d\t%s\n",
144 s, a, proto, ste->idle, f);
147 printf("%s\t%s\t%d\t\t%d\t%s\n",
148 s, a, ste->proto, ste->idle, f);
153 stg = (ipfw_nat64lsn_stg_v1 *)ste;
159 nat64lsn_states_cb(ipfw_nat64lsn_cfg *cfg, const char *name, uint8_t set)
167 if (name != NULL && strcmp(cfg->name, name) != 0)
170 if (set != 0 && cfg->set != set)
175 if ((buf = calloc(1, sz)) == NULL)
178 oh = (ipfw_obj_header *)buf;
179 oh->opheader.version = 1; /* Force using ov new API */
180 od = (ipfw_obj_data *)(oh + 1);
181 nat64lsn_fill_ntlv(&oh->ntlv, cfg->name, set);
182 od->head.type = IPFW_TLV_OBJDATA;
183 od->head.length = sizeof(*od) + sizeof(next_idx);
184 *((uint64_t *)(od + 1)) = next_idx;
185 if (do_get3(IP_FW_NAT64LSN_LIST_STATES, &oh->opheader, &sz))
186 err(EX_OSERR, "Error reading nat64lsn states");
187 next_idx = nat64lsn_print_states(buf);
190 } while (next_idx != 0xFF);
196 static struct _s_x nat64statscmds[] = {
197 { "reset", TOK_RESET },
202 ipfw_nat64lsn_stats_handler(const char *name, uint8_t set, int ac, char *av[])
207 nat64lsn_stats(name, set);
210 NEED1("nat64lsn stats needs command");
211 tcmd = get_token(nat64statscmds, *av, "nat64lsn stats command");
214 nat64lsn_reset_stats(name, set);
218 static struct _s_x nat64listcmds[] = {
219 { "states", TOK_STATES },
220 { "config", TOK_CONFIG },
225 ipfw_nat64lsn_list_handler(const char *name, uint8_t set, int ac, char *av[])
230 nat64lsn_foreach(nat64lsn_show_cb, name, set, 1);
233 NEED1("nat64lsn list needs command");
234 tcmd = get_token(nat64listcmds, *av, "nat64lsn list command");
237 nat64lsn_foreach(nat64lsn_states_cb, name, set, 1);
240 nat64lsn_foreach(nat64lsn_show_cb, name, set, 1);
245 * This one handles all nat64lsn-related commands
246 * ipfw [set N] nat64lsn NAME {create | config} ...
247 * ipfw [set N] nat64lsn NAME stats
248 * ipfw [set N] nat64lsn {NAME | all} destroy
249 * ipfw [set N] nat64lsn {NAME | all} {list | show} [config | states]
251 #define nat64lsn_check_name table_check_name
253 ipfw_nat64lsn_handler(int ac, char *av[])
260 set = co.use_set - 1;
265 NEED1("nat64lsn needs instance name");
267 if (nat64lsn_check_name(name) != 0) {
268 if (strcmp(name, "all") == 0)
271 errx(EX_USAGE, "nat64lsn instance name %s is invalid",
275 NEED1("nat64lsn needs command");
277 tcmd = get_token(nat64cmds, *av, "nat64lsn command");
278 if (name == NULL && tcmd != TOK_DESTROY && tcmd != TOK_LIST)
279 errx(EX_USAGE, "nat64lsn instance name required");
283 nat64lsn_create(name, set, ac, av);
287 nat64lsn_config(name, set, ac, av);
291 ipfw_nat64lsn_list_handler(name, set, ac, av);
295 nat64lsn_foreach(nat64lsn_destroy_cb, NULL, set, 0);
297 nat64lsn_destroy(name, set);
301 ipfw_nat64lsn_stats_handler(name, set, ac, av);
306 nat64lsn_fill_ntlv(ipfw_obj_ntlv *ntlv, const char *name, uint8_t set)
309 ntlv->head.type = IPFW_TLV_EACTION_NAME(1); /* it doesn't matter */
310 ntlv->head.length = sizeof(ipfw_obj_ntlv);
313 strlcpy(ntlv->name, name, sizeof(ntlv->name));
317 nat64lsn_apply_mask(int af, void *prefix, uint16_t plen)
319 struct in6_addr mask6, *p6;
320 struct in_addr mask4, *p4;
323 p4 = (struct in_addr *)prefix;
324 mask4.s_addr = htonl(~((1 << (32 - plen)) - 1));
325 p4->s_addr &= mask4.s_addr;
326 } else if (af == AF_INET6) {
327 p6 = (struct in6_addr *)prefix;
328 n2mask(&mask6, plen);
329 APPLY_MASK(p6, &mask6);
334 nat64lsn_parse_prefix(const char *arg, int af, void *prefix, uint16_t *plen)
341 if ((l = strchr(p, '/')) != NULL)
344 errx(EX_USAGE, "Prefix length required");
345 if (inet_pton(af, p, prefix) != 1)
346 errx(EX_USAGE, "Bad prefix: %s", p);
347 *plen = (uint16_t)strtol(l, &l, 10);
348 if (*l != '\0' || *plen == 0 || (af == AF_INET && *plen > 32) ||
349 (af == AF_INET6 && *plen > 96))
350 errx(EX_USAGE, "Bad prefix length: %s", arg);
351 nat64lsn_apply_mask(af, prefix, *plen);
356 nat64lsn_parse_int(const char *arg, const char *desc)
361 val = (uint32_t)strtol(arg, &p, 10);
363 errx(EX_USAGE, "Invalid %s value: %s\n", desc, arg);
367 static struct _s_x nat64newcmds[] = {
368 { "prefix6", TOK_PREFIX6 },
369 { "jmaxlen", TOK_JMAXLEN },
370 { "prefix4", TOK_PREFIX4 },
371 { "host_del_age", TOK_HOST_DEL_AGE },
372 { "pg_del_age", TOK_PG_DEL_AGE },
373 { "tcp_syn_age", TOK_TCP_SYN_AGE },
374 { "tcp_close_age",TOK_TCP_CLOSE_AGE },
375 { "tcp_est_age", TOK_TCP_EST_AGE },
376 { "udp_age", TOK_UDP_AGE },
377 { "icmp_age", TOK_ICMP_AGE },
378 { "states_chunks",TOK_STATES_CHUNKS },
380 { "-log", TOK_LOGOFF },
381 { "allow_private", TOK_PRIVATE },
382 { "-allow_private", TOK_PRIVATEOFF },
383 /* for compatibility with old configurations */
384 { "max_ports", TOK_MAX_PORTS }, /* unused */
389 * Creates new nat64lsn instance
390 * ipfw nat64lsn <NAME> create
392 * Request: [ ipfw_obj_lheader ipfw_nat64lsn_cfg ]
394 #define NAT64LSN_HAS_PREFIX4 0x01
395 #define NAT64LSN_HAS_PREFIX6 0x02
397 nat64lsn_create(const char *name, uint8_t set, int ac, char **av)
399 char buf[sizeof(ipfw_obj_lheader) + sizeof(ipfw_nat64lsn_cfg)];
400 ipfw_nat64lsn_cfg *cfg;
401 ipfw_obj_lheader *olh;
405 memset(&buf, 0, sizeof(buf));
406 olh = (ipfw_obj_lheader *)buf;
407 cfg = (ipfw_nat64lsn_cfg *)(olh + 1);
409 /* Some reasonable defaults */
410 inet_pton(AF_INET6, "64:ff9b::", &cfg->prefix6);
413 cfg->max_ports = NAT64LSN_MAX_PORTS;
414 cfg->jmaxlen = NAT64LSN_JMAXLEN;
415 cfg->nh_delete_delay = NAT64LSN_HOST_AGE;
416 cfg->pg_delete_delay = NAT64LSN_PG_AGE;
417 cfg->st_syn_ttl = NAT64LSN_TCP_SYN_AGE;
418 cfg->st_estab_ttl = NAT64LSN_TCP_EST_AGE;
419 cfg->st_close_ttl = NAT64LSN_TCP_FIN_AGE;
420 cfg->st_udp_ttl = NAT64LSN_UDP_AGE;
421 cfg->st_icmp_ttl = NAT64LSN_ICMP_AGE;
422 flags = NAT64LSN_HAS_PREFIX6;
424 tcmd = get_token(nat64newcmds, *av, "option");
430 NEED1("IPv4 prefix required");
431 nat64lsn_parse_prefix(*av, AF_INET, &cfg->prefix4,
433 flags |= NAT64LSN_HAS_PREFIX4;
437 NEED1("IPv6 prefix required");
438 nat64lsn_parse_prefix(*av, AF_INET6, &cfg->prefix6,
440 if (ipfw_check_nat64prefix(&cfg->prefix6,
442 !IN6_IS_ADDR_UNSPECIFIED(&cfg->prefix6))
443 errx(EX_USAGE, "Bad prefix6 %s", *av);
448 NEED1("job queue length required");
449 cfg->jmaxlen = nat64lsn_parse_int(*av, opt);
453 NEED1("Max per-user ports required");
454 cfg->max_ports = nat64lsn_parse_int(*av, opt);
457 case TOK_HOST_DEL_AGE:
458 NEED1("host delete delay required");
459 cfg->nh_delete_delay = (uint16_t)nat64lsn_parse_int(
464 NEED1("portgroup delete delay required");
465 cfg->pg_delete_delay = (uint16_t)nat64lsn_parse_int(
469 case TOK_TCP_SYN_AGE:
470 NEED1("tcp syn age required");
471 cfg->st_syn_ttl = (uint16_t)nat64lsn_parse_int(
475 case TOK_TCP_CLOSE_AGE:
476 NEED1("tcp close age required");
477 cfg->st_close_ttl = (uint16_t)nat64lsn_parse_int(
481 case TOK_TCP_EST_AGE:
482 NEED1("tcp est age required");
483 cfg->st_estab_ttl = (uint16_t)nat64lsn_parse_int(
488 NEED1("udp age required");
489 cfg->st_udp_ttl = (uint16_t)nat64lsn_parse_int(
494 NEED1("icmp age required");
495 cfg->st_icmp_ttl = (uint16_t)nat64lsn_parse_int(
499 case TOK_STATES_CHUNKS:
500 NEED1("number of chunks required");
501 cfg->states_chunks = (uint8_t)nat64lsn_parse_int(
506 cfg->flags |= NAT64_LOG;
509 cfg->flags &= ~NAT64_LOG;
512 cfg->flags |= NAT64_ALLOW_PRIVATE;
515 cfg->flags &= ~NAT64_ALLOW_PRIVATE;
520 /* Check validness */
521 if ((flags & NAT64LSN_HAS_PREFIX4) != NAT64LSN_HAS_PREFIX4)
522 errx(EX_USAGE, "prefix4 required");
525 olh->objsize = sizeof(*cfg);
526 olh->size = sizeof(buf);
527 strlcpy(cfg->name, name, sizeof(cfg->name));
528 if (do_set3(IP_FW_NAT64LSN_CREATE, &olh->opheader, sizeof(buf)) != 0)
529 err(EX_OSERR, "nat64lsn instance creation failed");
533 * Configures existing nat64lsn instance
534 * ipfw nat64lsn <NAME> config <options>
535 * Request: [ ipfw_obj_header ipfw_nat64lsn_cfg ]
538 nat64lsn_config(const char *name, uint8_t set, int ac, char **av)
540 char buf[sizeof(ipfw_obj_header) + sizeof(ipfw_nat64lsn_cfg)];
541 ipfw_nat64lsn_cfg *cfg;
548 errx(EX_USAGE, "config options required");
549 memset(&buf, 0, sizeof(buf));
550 oh = (ipfw_obj_header *)buf;
551 cfg = (ipfw_nat64lsn_cfg *)(oh + 1);
554 nat64lsn_fill_ntlv(&oh->ntlv, name, set);
555 if (do_get3(IP_FW_NAT64LSN_CONFIG, &oh->opheader, &sz) != 0)
556 err(EX_OSERR, "failed to get config for instance %s", name);
559 tcmd = get_token(nat64newcmds, *av, "option");
565 NEED1("Max per-user ports required");
566 cfg->max_ports = nat64lsn_parse_int(*av, opt);
570 NEED1("job queue length required");
571 cfg->jmaxlen = nat64lsn_parse_int(*av, opt);
574 case TOK_HOST_DEL_AGE:
575 NEED1("host delete delay required");
576 cfg->nh_delete_delay = (uint16_t)nat64lsn_parse_int(
581 NEED1("portgroup delete delay required");
582 cfg->pg_delete_delay = (uint16_t)nat64lsn_parse_int(
586 case TOK_TCP_SYN_AGE:
587 NEED1("tcp syn age required");
588 cfg->st_syn_ttl = (uint16_t)nat64lsn_parse_int(
592 case TOK_TCP_CLOSE_AGE:
593 NEED1("tcp close age required");
594 cfg->st_close_ttl = (uint16_t)nat64lsn_parse_int(
598 case TOK_TCP_EST_AGE:
599 NEED1("tcp est age required");
600 cfg->st_estab_ttl = (uint16_t)nat64lsn_parse_int(
605 NEED1("udp age required");
606 cfg->st_udp_ttl = (uint16_t)nat64lsn_parse_int(
611 NEED1("icmp age required");
612 cfg->st_icmp_ttl = (uint16_t)nat64lsn_parse_int(
616 case TOK_STATES_CHUNKS:
617 NEED1("number of chunks required");
618 cfg->states_chunks = (uint8_t)nat64lsn_parse_int(
623 cfg->flags |= NAT64_LOG;
626 cfg->flags &= ~NAT64_LOG;
629 cfg->flags |= NAT64_ALLOW_PRIVATE;
632 cfg->flags &= ~NAT64_ALLOW_PRIVATE;
635 errx(EX_USAGE, "Can't change %s option", opt);
639 if (do_set3(IP_FW_NAT64LSN_CONFIG, &oh->opheader, sizeof(buf)) != 0)
640 err(EX_OSERR, "nat64lsn instance configuration failed");
644 * Reset nat64lsn instance statistics specified by @oh->ntlv.
645 * Request: [ ipfw_obj_header ]
648 nat64lsn_reset_stats(const char *name, uint8_t set)
652 memset(&oh, 0, sizeof(oh));
653 nat64lsn_fill_ntlv(&oh.ntlv, name, set);
654 if (do_set3(IP_FW_NAT64LSN_RESET_STATS, &oh.opheader, sizeof(oh)) != 0)
655 err(EX_OSERR, "failed to reset stats for instance %s", name);
659 * Destroys nat64lsn instance specified by @oh->ntlv.
660 * Request: [ ipfw_obj_header ]
663 nat64lsn_destroy(const char *name, uint8_t set)
667 memset(&oh, 0, sizeof(oh));
668 nat64lsn_fill_ntlv(&oh.ntlv, name, set);
669 if (do_set3(IP_FW_NAT64LSN_DESTROY, &oh.opheader, sizeof(oh)) != 0)
670 err(EX_OSERR, "failed to destroy nat instance %s", name);
674 * Get nat64lsn instance statistics.
675 * Request: [ ipfw_obj_header ]
676 * Reply: [ ipfw_obj_header ipfw_obj_ctlv [ uint64_t x N ] ]
679 nat64lsn_get_stats(const char *name, uint8_t set,
680 struct ipfw_nat64lsn_stats *stats)
686 sz = sizeof(*oh) + sizeof(*oc) + sizeof(*stats);
688 nat64lsn_fill_ntlv(&oh->ntlv, name, set);
689 if (do_get3(IP_FW_NAT64LSN_STATS, &oh->opheader, &sz) == 0) {
690 oc = (ipfw_obj_ctlv *)(oh + 1);
691 memcpy(stats, oc + 1, sizeof(*stats));
700 nat64lsn_stats(const char *name, uint8_t set)
702 struct ipfw_nat64lsn_stats stats;
704 if (nat64lsn_get_stats(name, set, &stats) != 0)
705 err(EX_OSERR, "Error retrieving stats");
707 if (co.use_set != 0 || set != 0)
708 printf("set %u ", set);
709 printf("nat64lsn %s\n", name);
710 printf("\t%ju packets translated from IPv6 to IPv4\n",
711 (uintmax_t)stats.opcnt64);
712 printf("\t%ju packets translated from IPv4 to IPv6\n",
713 (uintmax_t)stats.opcnt46);
714 printf("\t%ju IPv6 fragments created\n",
715 (uintmax_t)stats.ofrags);
716 printf("\t%ju IPv4 fragments received\n",
717 (uintmax_t)stats.ifrags);
718 printf("\t%ju output packets dropped due to no bufs, etc.\n",
719 (uintmax_t)stats.oerrors);
720 printf("\t%ju output packets discarded due to no IPv4 route\n",
721 (uintmax_t)stats.noroute4);
722 printf("\t%ju output packets discarded due to no IPv6 route\n",
723 (uintmax_t)stats.noroute6);
724 printf("\t%ju packets discarded due to unsupported protocol\n",
725 (uintmax_t)stats.noproto);
726 printf("\t%ju packets discarded due to memory allocation problems\n",
727 (uintmax_t)stats.nomem);
728 printf("\t%ju packets discarded due to some errors\n",
729 (uintmax_t)stats.dropped);
730 printf("\t%ju packets not matched with IPv4 prefix\n",
731 (uintmax_t)stats.nomatch4);
733 printf("\t%ju mbufs queued for post processing\n",
734 (uintmax_t)stats.jreinjected);
735 printf("\t%ju times the job queue was processed\n",
736 (uintmax_t)stats.jcalls);
737 printf("\t%ju job requests queued\n",
738 (uintmax_t)stats.jrequests);
739 printf("\t%ju job requests queue limit reached\n",
740 (uintmax_t)stats.jmaxlen);
741 printf("\t%ju job requests failed due to memory allocation problems\n",
742 (uintmax_t)stats.jnomem);
744 printf("\t%ju hosts allocated\n", (uintmax_t)stats.hostcount);
745 printf("\t%ju hosts requested\n", (uintmax_t)stats.jhostsreq);
746 printf("\t%ju host requests failed\n", (uintmax_t)stats.jhostfails);
748 printf("\t%ju portgroups requested\n", (uintmax_t)stats.jportreq);
749 printf("\t%ju portgroups allocated\n", (uintmax_t)stats.spgcreated);
750 printf("\t%ju portgroups deleted\n", (uintmax_t)stats.spgdeleted);
751 printf("\t%ju portgroup requests failed\n",
752 (uintmax_t)stats.jportfails);
753 printf("\t%ju portgroups allocated for TCP\n",
754 (uintmax_t)stats.tcpchunks);
755 printf("\t%ju portgroups allocated for UDP\n",
756 (uintmax_t)stats.udpchunks);
757 printf("\t%ju portgroups allocated for ICMP\n",
758 (uintmax_t)stats.icmpchunks);
760 printf("\t%ju states created\n", (uintmax_t)stats.screated);
761 printf("\t%ju states deleted\n", (uintmax_t)stats.sdeleted);
765 nat64lsn_show_cb(ipfw_nat64lsn_cfg *cfg, const char *name, uint8_t set)
767 char abuf[INET6_ADDRSTRLEN];
769 if (name != NULL && strcmp(cfg->name, name) != 0)
772 if (co.use_set != 0 && cfg->set != set)
775 if (co.use_set != 0 || cfg->set != 0)
776 printf("set %u ", cfg->set);
777 inet_ntop(AF_INET, &cfg->prefix4, abuf, sizeof(abuf));
778 printf("nat64lsn %s prefix4 %s/%u", cfg->name, abuf, cfg->plen4);
779 inet_ntop(AF_INET6, &cfg->prefix6, abuf, sizeof(abuf));
780 printf(" prefix6 %s/%u", abuf, cfg->plen6);
781 if (co.verbose || cfg->states_chunks > 1)
782 printf(" states_chunks %u", cfg->states_chunks);
783 if (co.verbose || cfg->nh_delete_delay != NAT64LSN_HOST_AGE)
784 printf(" host_del_age %u", cfg->nh_delete_delay);
785 if (co.verbose || cfg->pg_delete_delay != NAT64LSN_PG_AGE)
786 printf(" pg_del_age %u", cfg->pg_delete_delay);
787 if (co.verbose || cfg->st_syn_ttl != NAT64LSN_TCP_SYN_AGE)
788 printf(" tcp_syn_age %u", cfg->st_syn_ttl);
789 if (co.verbose || cfg->st_close_ttl != NAT64LSN_TCP_FIN_AGE)
790 printf(" tcp_close_age %u", cfg->st_close_ttl);
791 if (co.verbose || cfg->st_estab_ttl != NAT64LSN_TCP_EST_AGE)
792 printf(" tcp_est_age %u", cfg->st_estab_ttl);
793 if (co.verbose || cfg->st_udp_ttl != NAT64LSN_UDP_AGE)
794 printf(" udp_age %u", cfg->st_udp_ttl);
795 if (co.verbose || cfg->st_icmp_ttl != NAT64LSN_ICMP_AGE)
796 printf(" icmp_age %u", cfg->st_icmp_ttl);
797 if (co.verbose || cfg->jmaxlen != NAT64LSN_JMAXLEN)
798 printf(" jmaxlen %u", cfg->jmaxlen);
799 if (cfg->flags & NAT64_LOG)
801 if (cfg->flags & NAT64_ALLOW_PRIVATE)
802 printf(" allow_private");
808 nat64lsn_destroy_cb(ipfw_nat64lsn_cfg *cfg, const char *name, uint8_t set)
811 if (co.use_set != 0 && cfg->set != set)
814 nat64lsn_destroy(cfg->name, cfg->set);
820 * Compare nat64lsn instances names.
821 * Honor number comparison.
824 nat64name_cmp(const void *a, const void *b)
826 ipfw_nat64lsn_cfg *ca, *cb;
828 ca = (ipfw_nat64lsn_cfg *)a;
829 cb = (ipfw_nat64lsn_cfg *)b;
831 if (ca->set > cb->set)
833 else if (ca->set < cb->set)
835 return (stringnum_cmp(ca->name, cb->name));
839 * Retrieves nat64lsn instance list from kernel,
840 * optionally sorts it and calls requested function for each instance.
842 * Request: [ ipfw_obj_lheader ]
843 * Reply: [ ipfw_obj_lheader ipfw_nat64lsn_cfg x N ]
846 nat64lsn_foreach(nat64lsn_cb_t *f, const char *name, uint8_t set, int sort)
848 ipfw_obj_lheader *olh;
849 ipfw_nat64lsn_cfg *cfg;
853 /* Start with reasonable default */
854 sz = sizeof(*olh) + 16 * sizeof(ipfw_nat64lsn_cfg);
857 if ((olh = calloc(1, sz)) == NULL)
861 if (do_get3(IP_FW_NAT64LSN_LIST, &olh->opheader, &sz) != 0) {
870 qsort(olh + 1, olh->count, olh->objsize,
873 cfg = (ipfw_nat64lsn_cfg *)(olh + 1);
874 for (i = 0; i < olh->count; i++) {
875 error = f(cfg, name, set); /* Ignore errors for now */
876 cfg = (ipfw_nat64lsn_cfg *)((caddr_t)cfg +