[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/iptables/extensions/libip6t_REJECT.c b/ap/app/iptables/extensions/libip6t_REJECT.c
new file mode 100755
index 0000000..527f595
--- /dev/null
+++ b/ap/app/iptables/extensions/libip6t_REJECT.c
@@ -0,0 +1,149 @@
+/* Shared library add-on to ip6tables to add customized REJECT support.
+ *
+ * (C) 2000 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * ported to IPv6 by Harald Welte <laforge@gnumonks.org>
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <xtables.h>
+#include <linux/netfilter_ipv6/ip6t_REJECT.h>
+
+struct reject_names {
+ const char *name;
+ const char *alias;
+ enum ip6t_reject_with with;
+ const char *desc;
+};
+
+static const struct reject_names reject_table[] = {
+ {"icmp6-no-route", "no-route",
+ IP6T_ICMP6_NO_ROUTE, "ICMPv6 no route"},
+ {"icmp6-adm-prohibited", "adm-prohibited",
+ IP6T_ICMP6_ADM_PROHIBITED, "ICMPv6 administratively prohibited"},
+#if 0
+ {"icmp6-not-neighbor", "not-neighbor"},
+ IP6T_ICMP6_NOT_NEIGHBOR, "ICMPv6 not a neighbor"},
+#endif
+ {"icmp6-addr-unreachable", "addr-unreach",
+ IP6T_ICMP6_ADDR_UNREACH, "ICMPv6 address unreachable"},
+ {"icmp6-port-unreachable", "port-unreach",
+ IP6T_ICMP6_PORT_UNREACH, "ICMPv6 port unreachable"},
+ {"tcp-reset", "tcp-reset",
+ IP6T_TCP_RESET, "TCP RST packet"}
+};
+
+static void
+print_reject_types(void)
+{
+ unsigned int i;
+
+ printf("Valid reject types:\n");
+
+ for (i = 0; i < sizeof(reject_table)/sizeof(struct reject_names); i++) {
+ printf(" %-25s\t%s\n", reject_table[i].name, reject_table[i].desc);
+ printf(" %-25s\talias\n", reject_table[i].alias);
+ }
+ printf("\n");
+}
+
+static void REJECT_help(void)
+{
+ printf(
+"REJECT target options:\n"
+"--reject-with type drop input packet and send back\n"
+" a reply packet according to type:\n");
+
+ print_reject_types();
+}
+
+static const struct option REJECT_opts[] = {
+ { "reject-with", 1, NULL, '1' },
+ { .name = NULL }
+};
+
+static void REJECT_init(struct xt_entry_target *t)
+{
+ struct ip6t_reject_info *reject = (struct ip6t_reject_info *)t->data;
+
+ /* default */
+ reject->with = IP6T_ICMP6_PORT_UNREACH;
+
+}
+
+static int REJECT_parse(int c, char **argv, int invert, unsigned int *flags,
+ const void *entry, struct xt_entry_target **target)
+{
+ struct ip6t_reject_info *reject =
+ (struct ip6t_reject_info *)(*target)->data;
+ unsigned int limit = sizeof(reject_table)/sizeof(struct reject_names);
+ unsigned int i;
+
+ switch(c) {
+ case '1':
+ if (xtables_check_inverse(optarg, &invert, NULL, 0))
+ xtables_error(PARAMETER_PROBLEM,
+ "Unexpected `!' after --reject-with");
+ for (i = 0; i < limit; i++) {
+ if ((strncasecmp(reject_table[i].name, optarg, strlen(optarg)) == 0)
+ || (strncasecmp(reject_table[i].alias, optarg, strlen(optarg)) == 0)) {
+ reject->with = reject_table[i].with;
+ return 1;
+ }
+ }
+ xtables_error(PARAMETER_PROBLEM, "unknown reject type \"%s\"", optarg);
+ default:
+ /* Fall through */
+ break;
+ }
+ return 0;
+}
+
+static void REJECT_print(const void *ip, const struct xt_entry_target *target,
+ int numeric)
+{
+ const struct ip6t_reject_info *reject
+ = (const struct ip6t_reject_info *)target->data;
+ unsigned int i;
+
+ for (i = 0; i < sizeof(reject_table)/sizeof(struct reject_names); i++) {
+ if (reject_table[i].with == reject->with)
+ break;
+ }
+ printf("reject-with %s ", reject_table[i].name);
+}
+
+static void REJECT_save(const void *ip, const struct xt_entry_target *target)
+{
+ const struct ip6t_reject_info *reject
+ = (const struct ip6t_reject_info *)target->data;
+ unsigned int i;
+
+ for (i = 0; i < sizeof(reject_table)/sizeof(struct reject_names); i++)
+ if (reject_table[i].with == reject->with)
+ break;
+
+ printf("--reject-with %s ", reject_table[i].name);
+}
+
+static struct xtables_target reject_tg6_reg = {
+ .name = "REJECT",
+ .version = XTABLES_VERSION,
+ .family = NFPROTO_IPV6,
+ .size = XT_ALIGN(sizeof(struct ip6t_reject_info)),
+ .userspacesize = XT_ALIGN(sizeof(struct ip6t_reject_info)),
+ .help = REJECT_help,
+ .init = REJECT_init,
+ .parse = REJECT_parse,
+ .print = REJECT_print,
+ .save = REJECT_save,
+ .extra_opts = REJECT_opts,
+};
+
+void _init(void)
+{
+ xtables_register_target(&reject_tg6_reg);
+}