zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/iptables/extensions/libxt_quota.c b/ap/app/iptables/extensions/libxt_quota.c
new file mode 100755
index 0000000..2657b2a
--- /dev/null
+++ b/ap/app/iptables/extensions/libxt_quota.c
@@ -0,0 +1,93 @@
+/*
+ * Shared library add-on to iptables to add quota support
+ *
+ * Sam Johnston <samj@samj.net>
+ */
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <xtables.h>
+
+#include <linux/netfilter/xt_quota.h>
+
+static const struct option quota_opts[] = {
+ {"quota", 1, NULL, '1'},
+ { .name = NULL }
+};
+
+static void quota_help(void)
+{
+ printf("quota match options:\n"
+ " --quota quota quota (bytes)\n");
+}
+
+static void
+quota_print(const void *ip, const struct xt_entry_match *match, int numeric)
+{
+ struct xt_quota_info *q = (struct xt_quota_info *) match->data;
+ printf("quota: %llu bytes", (unsigned long long) q->quota);
+}
+
+static void
+quota_save(const void *ip, const struct xt_entry_match *match)
+{
+ struct xt_quota_info *q = (struct xt_quota_info *) match->data;
+ printf("--quota %llu ", (unsigned long long) q->quota);
+}
+
+/* parse quota option */
+static int
+parse_quota(const char *s, u_int64_t * quota)
+{
+ *quota = strtoull(s, NULL, 10);
+
+#ifdef DEBUG_XT_QUOTA
+ printf("Quota: %llu\n", *quota);
+#endif
+
+ if (*quota == UINT64_MAX)
+ xtables_error(PARAMETER_PROBLEM, "quota invalid: '%s'\n", s);
+ else
+ return 1;
+}
+
+static int
+quota_parse(int c, char **argv, int invert, unsigned int *flags,
+ const void *entry, struct xt_entry_match **match)
+{
+ struct xt_quota_info *info = (struct xt_quota_info *) (*match)->data;
+
+ switch (c) {
+ case '1':
+ if (xtables_check_inverse(optarg, &invert, NULL, 0))
+ xtables_error(PARAMETER_PROBLEM, "quota: unexpected '!'");
+ if (!parse_quota(optarg, &info->quota))
+ xtables_error(PARAMETER_PROBLEM,
+ "bad quota: '%s'", optarg);
+ break;
+
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+static struct xtables_match quota_match = {
+ .family = AF_UNSPEC,
+ .name = "quota",
+ .version = XTABLES_VERSION,
+ .size = XT_ALIGN(sizeof (struct xt_quota_info)),
+ .userspacesize = offsetof(struct xt_quota_info, quota),
+ .help = quota_help,
+ .parse = quota_parse,
+ .print = quota_print,
+ .save = quota_save,
+ .extra_opts = quota_opts,
+};
+
+void
+_init(void)
+{
+ xtables_register_match("a_match);
+}