4 * Copyright (C) 2007-2010 Intel Corporation. All rights reserved.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include <sys/errno.h>
27 #include <sys/socket.h>
30 #include <linux/netfilter_ipv4/ip_tables.h>
34 static const char *hooknames[] = {
35 [NF_IP_PRE_ROUTING] = "PREROUTING",
36 [NF_IP_LOCAL_IN] = "INPUT",
37 [NF_IP_FORWARD] = "FORWARD",
38 [NF_IP_LOCAL_OUT] = "OUTPUT",
39 [NF_IP_POST_ROUTING] = "POSTROUTING",
42 #define LABEL_ACCEPT "ACCEPT"
43 #define LABEL_DROP "DROP"
44 #define LABEL_QUEUE "QUEUE"
45 #define LABEL_RETURN "RETURN"
47 /* fn returns 0 to continue iteration */
48 #define _XT_ENTRY_ITERATE_CONTINUE(type, entries, size, n, fn, args...) \
55 for (__i = 0, __n = 0; __i < (size); \
56 __i += __entry->next_offset, __n++) { \
57 __entry = (void *)(entries) + __i; \
61 __ret = fn(__entry, ## args); \
68 /* fn returns 0 to continue iteration */
69 #define _XT_ENTRY_ITERATE(type, entries, size, fn, args...) \
70 _XT_ENTRY_ITERATE_CONTINUE(type, entries, size, 0, fn, args)
72 #define ENTRY_ITERATE(entries, size, fn, args...) \
73 _XT_ENTRY_ITERATE(struct ipt_entry, entries, size, fn, ## args)
75 #define MIN_ALIGN (__alignof__(struct ipt_entry))
77 #define ALIGN(s) (((s) + ((MIN_ALIGN)-1)) & ~((MIN_ALIGN)-1))
80 struct xt_entry_target t;
81 char error[IPT_TABLE_MAXNAMELEN];
84 struct connman_iptables_entry {
88 struct ipt_entry *entry;
91 struct connman_iptables {
94 struct ipt_getinfo *info;
95 struct ipt_get_entries *blob_entries;
97 unsigned int num_entries;
98 unsigned int old_entries;
101 unsigned int underflow[NF_INET_NUMHOOKS];
102 unsigned int hook_entry[NF_INET_NUMHOOKS];
108 static struct ipt_entry *get_entry(struct connman_iptables *table,
111 return (struct ipt_entry *)((char *)table->blob_entries->entrytable +
115 static int is_hook_entry(struct connman_iptables *table,
116 struct ipt_entry *entry)
120 for (i = 0; i < NF_INET_NUMHOOKS; i++) {
121 if ((table->info->valid_hooks & (1 << i))
122 && get_entry(table, table->info->hook_entry[i]) == entry)
129 static unsigned long entry_to_offset(struct connman_iptables *table,
130 struct ipt_entry *entry)
132 return (void *)entry - (void *)table->blob_entries->entrytable;
135 static int target_to_verdict(char *target_name)
137 if (!strcmp(target_name, LABEL_ACCEPT))
138 return -NF_ACCEPT - 1;
140 if (!strcmp(target_name, LABEL_DROP))
143 if (!strcmp(target_name, LABEL_QUEUE))
144 return -NF_QUEUE - 1;
146 if (!strcmp(target_name, LABEL_RETURN))
152 static gboolean is_builtin_target(char *target_name)
154 if (!strcmp(target_name, LABEL_ACCEPT) ||
155 !strcmp(target_name, LABEL_DROP) ||
156 !strcmp(target_name, LABEL_QUEUE) ||
157 !strcmp(target_name, LABEL_RETURN))
163 static gboolean is_jump(struct connman_iptables_entry *e)
165 struct xt_entry_target *target;
167 target = ipt_get_target(e->entry);
169 if (!strcmp(target->u.user.name, IPT_STANDARD_TARGET)) {
170 struct xt_standard_target *t;
172 t = (struct xt_standard_target *)target;
174 switch (t->verdict) {
190 static gboolean is_chain(struct connman_iptables *table,
191 struct connman_iptables_entry *e)
193 struct ipt_entry *entry;
194 struct xt_entry_target *target;
200 target = ipt_get_target(entry);
201 if (!strcmp(target->u.user.name, IPT_ERROR_TARGET))
207 static GList *find_chain_head(struct connman_iptables *table,
211 struct connman_iptables_entry *head;
212 struct ipt_entry *entry;
213 struct xt_entry_target *target;
216 for (list = table->entries; list; list = list->next) {
221 builtin = head->builtin;
222 if (builtin >= 0 && !strcmp(hooknames[builtin], chain_name))
225 /* User defined chain */
226 target = ipt_get_target(entry);
227 if (!strcmp(target->u.user.name, IPT_ERROR_TARGET) &&
228 !strcmp((char *)target->data, chain_name))
235 static GList *find_chain_tail(struct connman_iptables *table,
238 GList *chain_head, *list;
239 struct connman_iptables_entry *tail;
241 chain_head = find_chain_head(table, chain_name);
242 if (chain_head == NULL)
245 /* Then we look for the next chain */
246 for (list = chain_head->next; list; list = list->next) {
249 if (is_chain(table, tail))
253 /* Nothing found, we return the table end */
254 return g_list_last(table->entries);
257 static void update_offsets(struct connman_iptables *table)
260 struct connman_iptables_entry *entry, *prev_entry;
262 for (list = table->entries; list; list = list->next) {
265 if (list == table->entries) {
272 prev_entry = prev->data;
274 entry->offset = prev_entry->offset +
275 prev_entry->entry->next_offset;
279 static int connman_add_entry(struct connman_iptables *table,
280 struct ipt_entry *entry, GList *before,
284 struct connman_iptables_entry *e, *tmp, *entry_before;
285 struct xt_standard_target *t;
290 e = g_try_malloc0(sizeof(struct connman_iptables_entry));
295 e->builtin = builtin;
297 table->entries = g_list_insert_before(table->entries, before, e);
298 table->num_entries++;
299 table->size += entry->next_offset;
301 if (before == NULL) {
302 e->offset = table->size - entry->next_offset;
307 entry_before = before->data;
310 * We've just insterted a new entry. All references before it
311 * should be bumped accordingly.
313 for (list = table->entries; list != before; list = list->next) {
319 t = (struct xt_standard_target *)ipt_get_target(tmp->entry);
321 if (t->verdict >= entry_before->offset)
322 t->verdict += entry->next_offset;
325 update_offsets(table);
330 static int connman_iptables_flush_chain(struct connman_iptables *table,
333 GList *chain_head, *chain_tail, *list, *next;
334 struct connman_iptables_entry *entry;
335 int builtin, removed = 0;
337 chain_head = find_chain_head(table, name);
338 if (chain_head == NULL)
341 chain_tail = find_chain_tail(table, name);
342 if (chain_tail == NULL)
345 entry = chain_head->data;
346 builtin = entry->builtin;
351 list = chain_head->next;
353 if (list == chain_tail->prev)
356 while (list != chain_tail->prev) {
358 next = g_list_next(list);
360 table->num_entries--;
361 table->size -= entry->entry->next_offset;
362 removed += entry->entry->next_offset;
364 table->entries = g_list_remove(table->entries, list->data);
370 struct connman_iptables_entry *e;
374 entry->builtin = builtin;
376 table->underflow[builtin] -= removed;
378 for (list = chain_tail; list; list = list->next) {
381 builtin = e->builtin;
385 table->hook_entry[builtin] -= removed;
386 table->underflow[builtin] -= removed;
390 update_offsets(table);
395 static int connman_iptables_delete_chain(struct connman_iptables *table,
398 GList *chain_head, *chain_tail, *list, *next;
399 struct connman_iptables_entry *entry;
401 chain_head = find_chain_head(table, name);
402 if (chain_head == NULL)
405 chain_tail = find_chain_tail(table, name);
406 if (chain_tail == NULL)
411 while (list != chain_tail) {
413 next = g_list_next(list);
415 table->num_entries--;
416 table->size -= entry->entry->next_offset;
418 table->entries = g_list_remove(table->entries, list->data);
423 update_offsets(table);
428 static int connman_iptables_add_chain(struct connman_iptables *table,
432 struct ipt_entry *entry_head;
433 struct ipt_entry *entry_return;
434 struct error_target *error;
435 struct ipt_standard_target *standard;
436 u_int16_t entry_head_size, entry_return_size;
438 last = g_list_last(table->entries);
441 * An empty chain is composed of:
442 * - A head entry, with no match and an error target.
443 * The error target data is the chain name.
444 * - A tail entry, with no match and a standard target.
445 * The standard target verdict is XT_RETURN (return to the
450 entry_head_size = sizeof(struct ipt_entry) +
451 sizeof(struct error_target);
452 entry_head = g_try_malloc0(entry_head_size);
453 if (entry_head == NULL)
456 memset(entry_head, 0, entry_head_size);
458 entry_head->target_offset = sizeof(struct ipt_entry);
459 entry_head->next_offset = entry_head_size;
461 error = (struct error_target *) entry_head->elems;
462 strcpy(error->t.u.user.name, IPT_ERROR_TARGET);
463 error->t.u.user.target_size = ALIGN(sizeof(struct error_target));
464 strcpy(error->error, name);
466 if (connman_add_entry(table, entry_head, last, -1) < 0)
470 entry_return_size = sizeof(struct ipt_entry) +
471 sizeof(struct ipt_standard_target);
472 entry_return = g_try_malloc0(entry_return_size);
473 if (entry_return == NULL)
476 memset(entry_return, 0, entry_return_size);
478 entry_return->target_offset = sizeof(struct ipt_entry);
479 entry_return->next_offset = entry_return_size;
481 standard = (struct ipt_standard_target *) entry_return->elems;
482 standard->target.u.user.target_size =
483 ALIGN(sizeof(struct ipt_standard_target));
484 standard->verdict = XT_RETURN;
486 if (connman_add_entry(table, entry_return, last, -1) < 0)
492 g_free(entry_return);
499 static struct ipt_entry *
500 new_rule(struct connman_iptables *table,
501 char *target_name, struct xtables_target *xt_t,
502 char *match_name, struct xtables_match *xt_m)
504 struct ipt_entry *new_entry;
505 size_t match_size, target_size;
506 int is_builtin = is_builtin_target(target_name);
509 match_size = xt_m->m->u.match_size;
514 target_size = ALIGN(xt_t->t->u.target_size);
516 target_size = ALIGN(sizeof(struct xt_standard_target));
518 new_entry = g_try_malloc0(sizeof(struct ipt_entry) + target_size +
520 if (new_entry == NULL)
523 new_entry->target_offset = sizeof(struct ipt_entry) + match_size;
524 new_entry->next_offset = sizeof(struct ipt_entry) + target_size +
527 struct xt_entry_match *entry_match;
529 entry_match = (struct xt_entry_match *)new_entry->elems;
530 memcpy(entry_match, xt_m->m, match_size);
534 struct xt_entry_target *entry_target;
537 struct xt_standard_target *target;
539 target = (struct xt_standard_target *)(xt_t->t);
540 strcpy(target->target.u.user.name, IPT_STANDARD_TARGET);
541 target->verdict = target_to_verdict(target_name);
544 entry_target = ipt_get_target(new_entry);
545 memcpy(entry_target, xt_t->t, target_size);
547 struct connman_iptables_entry *target_rule;
548 struct xt_standard_target *target;
552 * This is a user defined target, i.e. a chain jump.
553 * We search for the chain head, and the target verdict
554 * is the first rule's offset on this chain.
555 * The offset is from the beginning of the table.
558 chain_head = find_chain_head(table, target_name);
559 if (chain_head == NULL || chain_head->next == NULL) {
564 target_rule = chain_head->next->data;
566 target = (struct xt_standard_target *)ipt_get_target(new_entry);
567 strcpy(target->target.u.user.name, IPT_STANDARD_TARGET);
568 target->target.u.user.target_size = target_size;
569 target->verdict = target_rule->offset;
575 static void update_hooks(struct connman_iptables *table, GList *chain_head, struct ipt_entry *entry)
578 struct connman_iptables_entry *head, *e;
581 if (chain_head == NULL)
584 head = chain_head->data;
586 builtin = head->builtin;
590 table->underflow[builtin] += entry->next_offset;
592 for (list = chain_head->next; list; list = list->next) {
595 builtin = e->builtin;
599 table->hook_entry[builtin] += entry->next_offset;
600 table->underflow[builtin] += entry->next_offset;
605 connman_iptables_add_rule(struct connman_iptables *table, char *chain_name,
606 char *target_name, struct xtables_target *xt_t,
607 char *match_name, struct xtables_match *xt_m)
609 GList *chain_tail, *chain_head;
610 struct ipt_entry *new_entry;
611 struct connman_iptables_entry *head;
614 chain_head = find_chain_head(table, chain_name);
615 if (chain_head == NULL)
618 chain_tail = find_chain_tail(table, chain_name);
619 if (chain_tail == NULL)
622 new_entry = new_rule(table,
625 if (new_entry == NULL)
628 update_hooks(table, chain_head, new_entry);
631 * If the chain is builtin, and does not have any rule,
632 * then the one that we're inserting is becoming the head
633 * and thus needs the builtin flag.
635 head = chain_head->data;
636 if (head->builtin < 0)
638 else if (chain_head == chain_tail->prev) {
639 builtin = head->builtin;
643 return connman_add_entry(table, new_entry, chain_tail->prev, builtin);
646 static struct ipt_replace *
647 connman_iptables_blob(struct connman_iptables *table)
649 struct ipt_replace *r;
651 struct connman_iptables_entry *e;
652 unsigned char *entry_index;
654 r = g_try_malloc0(sizeof(struct ipt_replace) + table->size);
658 memset(r, 0, sizeof(*r) + table->size);
660 r->counters = g_try_malloc0(sizeof(struct xt_counters)
661 * table->old_entries);
662 if (r->counters == NULL) {
667 strcpy(r->name, table->info->name);
668 r->num_entries = table->num_entries;
669 r->size = table->size;
671 r->num_counters = table->old_entries;
672 r->valid_hooks = table->info->valid_hooks;
674 memcpy(r->hook_entry, table->hook_entry, sizeof(table->hook_entry));
675 memcpy(r->underflow, table->underflow, sizeof(table->underflow));
677 entry_index = (unsigned char *)r->entries;
678 for (list = table->entries; list; list = list->next) {
681 memcpy(entry_index, e->entry, e->entry->next_offset);
682 entry_index += e->entry->next_offset;
688 static void dump_target(struct connman_iptables *table,
689 struct ipt_entry *entry)
692 struct xtables_target *xt_t;
693 struct xt_entry_target *target;
695 target = ipt_get_target(entry);
697 if (!strcmp(target->u.user.name, IPT_STANDARD_TARGET)) {
698 struct xt_standard_target *t;
700 t = (struct xt_standard_target *)target;
702 switch (t->verdict) {
704 printf("\ttarget RETURN\n");
708 printf("\ttarget ACCEPT\n");
712 printf("\ttarget DROP\n");
716 printf("\ttarget QUEUE\n");
720 printf("\ttarget STOP\n");
724 printf("\tJUMP @%p (0x%x)\n",
725 (char*)table->blob_entries->entrytable +
726 t->verdict, t->verdict);
730 xt_t = xtables_find_target(IPT_STANDARD_TARGET,
731 XTF_LOAD_MUST_SUCCEED);
733 if(xt_t->print != NULL)
734 xt_t->print(NULL, target, 1);
736 xt_t = xtables_find_target(target->u.user.name, XTF_TRY_LOAD);
738 printf("\ttarget %s\n", target->u.user.name);
742 if(xt_t->print != NULL) {
744 xt_t->print(NULL, target, 1);
750 static void dump_match(struct connman_iptables *table, struct ipt_entry *entry)
752 struct xtables_match *xt_m;
753 struct xt_entry_match *match;
755 if (entry->elems == (unsigned char *)entry + entry->target_offset)
758 match = (struct xt_entry_match *) entry->elems;
760 if (!strlen(match->u.user.name))
763 xt_m = xtables_find_match(match->u.user.name, XTF_TRY_LOAD, NULL);
767 if(xt_m->print != NULL) {
769 xt_m->print(NULL, match, 1);
776 printf("\tmatch %s\n", match->u.user.name);
780 static int connman_iptables_dump_entry(struct ipt_entry *entry,
781 struct connman_iptables *table)
783 struct xt_entry_target *target;
787 offset = (char *)entry - (char *)table->blob_entries->entrytable;
788 target = ipt_get_target(entry);
789 builtin = is_hook_entry(table, entry);
791 if (entry_to_offset(table, entry) + entry->next_offset ==
792 table->blob_entries->size) {
793 printf("End of CHAIN 0x%x\n", offset);
797 if (!strcmp(target->u.user.name, IPT_ERROR_TARGET)) {
798 printf("USER CHAIN (%s) %p match %p target %p size %d\n",
799 target->data, entry, entry->elems,
800 (char *)entry + entry->target_offset,
804 } else if (builtin >= 0) {
805 printf("CHAIN (%s) %p match %p target %p size %d\n",
806 hooknames[builtin], entry, entry->elems,
807 (char *)entry + entry->target_offset,
810 printf("RULE %p match %p target %p size %d\n", entry,
812 (char *)entry + entry->target_offset,
816 dump_match(table, entry);
817 dump_target(table, entry);
822 static void connman_iptables_dump_hook(struct connman_iptables *table)
826 for (i = 0; i < NF_INET_NUMHOOKS; i++) {
827 if ((table->info->valid_hooks & (1 << i)))
828 printf("%s entry %p underflow %p (%#x)\n",
830 table->blob_entries->entrytable +
831 table->info->hook_entry[i],
832 table->blob_entries->entrytable +
833 table->info->underflow[i],
834 table->info->underflow[i]);
838 static void connman_iptables_dump(struct connman_iptables *table)
840 printf("%s valid_hooks=0x%08x, num_entries=%u, size=%u\n",
842 table->info->valid_hooks, table->info->num_entries,
845 connman_iptables_dump_hook(table);
847 ENTRY_ITERATE(table->blob_entries->entrytable,
848 table->blob_entries->size,
849 connman_iptables_dump_entry, table);
853 static int connman_iptables_get_entries(struct connman_iptables *table)
855 socklen_t entry_size;
857 entry_size = sizeof(struct ipt_get_entries) + table->info->size;
859 return getsockopt(table->ipt_sock, IPPROTO_IP, IPT_SO_GET_ENTRIES,
860 table->blob_entries, &entry_size);
863 static int connman_iptables_replace(struct connman_iptables *table,
864 struct ipt_replace *r)
866 return setsockopt(table->ipt_sock, IPPROTO_IP, IPT_SO_SET_REPLACE, r,
867 sizeof(*r) + r->size);
870 static void connman_iptables_cleanup(struct connman_iptables *table)
873 struct connman_iptables_entry *entry;
875 close(table->ipt_sock);
877 for (list = table->entries; list; list = list->next) {
880 g_free(entry->entry);
884 g_free(table->blob_entries);
887 xtables_free_opts(1);
890 static int connman_iptables_commit(struct connman_iptables *table)
892 struct ipt_replace *repl;
894 repl = connman_iptables_blob(table);
896 return connman_iptables_replace(table, repl);
899 static int add_entry(struct ipt_entry *entry, struct connman_iptables *table)
901 struct ipt_entry *new_entry;
904 new_entry = g_try_malloc0(entry->next_offset);
905 if (new_entry == NULL)
908 memcpy(new_entry, entry, entry->next_offset);
910 builtin = is_hook_entry(table, entry);
912 return connman_add_entry(table, new_entry, NULL, builtin);
915 static struct connman_iptables *connman_iptables_init(const char *table_name)
917 struct connman_iptables *table;
920 table = g_try_new0(struct connman_iptables, 1);
924 table->info = g_try_new0(struct ipt_getinfo, 1);
925 if (table->info == NULL)
928 table->ipt_sock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
929 if (table->ipt_sock < 0)
932 s = sizeof(*table->info);
933 strcpy(table->info->name, table_name);
934 if (getsockopt(table->ipt_sock, IPPROTO_IP, IPT_SO_GET_INFO,
935 table->info, &s) < 0)
938 table->blob_entries = g_try_malloc0(sizeof(struct ipt_get_entries) +
940 if (table->blob_entries == NULL)
943 strcpy(table->blob_entries->name, table_name);
944 table->blob_entries->size = table->info->size;
946 if (connman_iptables_get_entries(table) < 0)
949 table->num_entries = 0;
950 table->old_entries = table->info->num_entries;
953 memcpy(table->underflow, table->info->underflow,
954 sizeof(table->info->underflow));
955 memcpy(table->hook_entry, table->info->hook_entry,
956 sizeof(table->info->hook_entry));
958 ENTRY_ITERATE(table->blob_entries->entrytable,
959 table->blob_entries->size,
967 connman_iptables_cleanup(table);
973 static struct option connman_iptables_opts[] = {
974 {.name = "append", .has_arg = 1, .val = 'A'},
975 {.name = "flush-chain", .has_arg = 1, .val = 'F'},
976 {.name = "list", .has_arg = 2, .val = 'L'},
977 {.name = "new-chain", .has_arg = 1, .val = 'N'},
978 {.name = "delete-chain", .has_arg = 1, .val = 'X'},
979 {.name = "in-interface", .has_arg = 1, .val = 'i'},
980 {.name = "jump", .has_arg = 1, .val = 'j'},
981 {.name = "match", .has_arg = 1, .val = 'm'},
982 {.name = "out-interface", .has_arg = 1, .val = 'o'},
983 {.name = "table", .has_arg = 1, .val = 't'},
987 struct xtables_globals connman_iptables_globals = {
989 .opts = connman_iptables_opts,
990 .orig_opts = connman_iptables_opts,
993 int main(int argc, char *argv[])
995 struct connman_iptables *table;
996 struct xtables_match *xt_m;
997 struct xtables_target *xt_t;
998 char *table_name, *chain, *new_chain, *match_name, *target_name;
999 char *delete_chain, *flush_chain;
1002 gboolean dump, invert, delete;
1004 xtables_init_all(&connman_iptables_globals, NFPROTO_IPV4);
1009 table_name = chain = new_chain = match_name = target_name = NULL;
1010 delete_chain = flush_chain = NULL;
1015 while ((c = getopt_long(argc, argv,
1016 "-A:F:L::N:X:j:i:m:o:t:", connman_iptables_globals.opts, NULL)) != -1) {
1023 flush_chain = optarg;
1036 delete_chain = optarg;
1040 target_name = optarg;
1041 xt_t = xtables_find_target(target_name, XTF_TRY_LOAD);
1046 size = ALIGN(sizeof(struct ipt_entry_target)) + xt_t->size;
1048 xt_t->t = g_try_malloc0(size);
1049 if (xt_t->t == NULL)
1051 xt_t->t->u.target_size = size;
1052 strcpy(xt_t->t->u.user.name, target_name);
1053 xt_t->t->u.user.revision = xt_t->revision;
1054 if (xt_t->init != NULL)
1055 xt_t->init(xt_t->t);
1056 connman_iptables_globals.opts =
1057 xtables_merge_options(
1058 #if XTABLES_VERSION_CODE > 5
1059 connman_iptables_globals.orig_opts,
1061 connman_iptables_globals.opts,
1063 &xt_t->option_offset);
1064 if (connman_iptables_globals.opts == NULL)
1073 match_name = optarg;
1075 xt_m = xtables_find_match(optarg, XTF_LOAD_MUST_SUCCEED, NULL);
1076 size = ALIGN(sizeof(struct ipt_entry_match)) + xt_m->size;
1077 xt_m->m = g_try_malloc0(size);
1080 xt_m->m->u.match_size = size;
1081 strcpy(xt_m->m->u.user.name, xt_m->name);
1082 xt_m->m->u.user.revision = xt_m->revision;
1083 if (xt_m->init != NULL)
1084 xt_m->init(xt_m->m);
1085 if (xt_m != xt_m->next) {
1086 connman_iptables_globals.opts =
1087 xtables_merge_options(
1088 #if XTABLES_VERSION_CODE > 5
1089 connman_iptables_globals.orig_opts,
1091 connman_iptables_globals.opts,
1093 &xt_m->option_offset);
1094 if (connman_iptables_globals.opts == NULL)
1104 table_name = optarg;
1108 if (optarg[0] == '!' && optarg[1] == '\0') {
1110 printf("Consecutive ! not allowed\n");
1117 printf("Invalid option\n");
1122 if (xt_t == NULL || xt_t->parse == NULL ||
1123 !xt_t->parse(c - xt_t->option_offset, argv, invert,
1124 &xt_t->tflags, NULL, &xt_t->t)) {
1125 if (xt_m == NULL || xt_m->parse == NULL)
1128 xt_m->parse(c - xt_m->option_offset, argv,
1129 invert, &xt_m->mflags, NULL, &xt_m->m);
1136 if (table_name == NULL)
1137 table_name = "filter";
1139 table = connman_iptables_init(table_name);
1144 if (delete_chain == NULL)
1147 printf("Delete chain %s\n", delete_chain);
1149 connman_iptables_delete_chain(table, delete_chain);
1155 printf("Flush chain %s\n", flush_chain);
1157 connman_iptables_flush_chain(table, flush_chain);
1163 connman_iptables_dump(table);
1168 if (chain && new_chain)
1172 printf("New chain %s\n", new_chain);
1174 connman_iptables_add_chain(table, new_chain);
1180 if (target_name == NULL)
1183 printf("Adding %s to %s (match %s)\n", target_name, chain, match_name);
1185 connman_iptables_add_rule(table, chain, target_name, xt_t,
1193 connman_iptables_commit(table);
1196 connman_iptables_cleanup(table);