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Diffstat (limited to 'extensions/libip6t_eui64.c')
-rw-r--r--extensions/libip6t_eui64.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/extensions/libip6t_eui64.c b/extensions/libip6t_eui64.c
new file mode 100644
index 00000000..97717980
--- /dev/null
+++ b/extensions/libip6t_eui64.c
@@ -0,0 +1,87 @@
+/* Shared library add-on to ip6tables to add EUI64 address checking support. */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+#if defined(__GLIBC__) && __GLIBC__ == 2
+#include <net/ethernet.h>
+#else
+#include <linux/if_ether.h>
+#endif
+#include <ip6tables.h>
+
+/* Function which prints out usage message. */
+static void
+help(void)
+{
+ printf(
+"eui64 v%s options:\n"
+" This module hasn't got any option\n"
+" This module checks for EUI64 IPv6 addresses\n"
+"\n", NETFILTER_VERSION);
+}
+
+static struct option opts[] = {
+ {0}
+};
+
+/* Initialize the match. */
+static void
+init(struct ip6t_entry_match *m, unsigned int *nfcache)
+{
+ /* Can't cache this */
+ *nfcache |= NFC_UNKNOWN;
+}
+
+/* Function which parses command options; returns true if it
+ ate an option */
+static int
+parse(int c, char **argv, int invert, unsigned int *flags,
+ const struct ip6t_entry *entry,
+ unsigned int *nfcache,
+ struct ip6t_entry_match **match)
+{
+ return 0;
+}
+
+/* Final check */
+static void final_check(unsigned int flags)
+{
+}
+
+/* Prints out the matchinfo. */
+static void
+print(const struct ip6t_ip6 *ip,
+ const struct ip6t_entry_match *match,
+ int numeric)
+{
+ printf("eui64 ");
+}
+
+/* Saves the union ip6t_matchinfo in parsable form to stdout. */
+static void save(const struct ip6t_ip6 *ip, const struct ip6t_entry_match *match)
+{
+
+}
+
+static
+struct ip6tables_match eui64
+= { NULL,
+ "eui64",
+ NETFILTER_VERSION,
+ IP6T_ALIGN(sizeof(int)),
+ IP6T_ALIGN(sizeof(int)),
+ &help,
+ &init,
+ &parse,
+ &final_check,
+ &print,
+ &save,
+ opts
+};
+
+void _init(void)
+{
+ register_match6(&eui64);
+}