This commit was manufactured by cvs2svn to create branch

[iptables.git] / extensions / libip6t_NFQUEUE.c

diff --git a/extensions/libip6t_NFQUEUE.c b/extensions/libip6t_NFQUEUE.c
new file mode 100644 (file)
index 0000000..e1964af
--- /dev/null
+++ b/extensions/libip6t_NFQUEUE.c
@@ -0,0 +1,114 @@
+/* Shared library add-on to ip666666tables for NFQ
+ *
+ * (C) 2005 by Harald Welte <laforge@netfilter.org>
+ *
+ * This program is distributed under the terms of GNU GPL v2, 1991
+ *
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#include <ip6tables.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+#include <linux/netfilter_ipv4/ipt_NFQUEUE.h>
+
+static void init(struct ip6t_entry_target *t, unsigned int *nfcache) 
+{
+}
+
+static void help(void) 
+{
+       printf(
+"NFQUEUE target options\n"
+"  --queue-num value           Send packet to QUEUE number <value>.\n"
+"                              Valid queue numbers are 0-65535\n"
+);
+}
+
+static struct option opts[] = {
+       { "queue-num", 1, 0, 'F' },
+       { 0 }
+};
+
+static void
+parse_num(const char *s, struct ipt_NFQ_info *tinfo)
+{
+       unsigned int num;
+       
+       if (string_to_number(s, 0, 65535, &num) == -1)
+               exit_error(PARAMETER_PROBLEM,
+                          "Invalid queue number `%s'\n", s);
+
+       tinfo->queuenum = num & 0xffff;
+       return;
+}
+
+static int
+parse(int c, char **argv, int invert, unsigned int *flags,
+      const struct ip6t_entry *entry,
+      struct ip6t_entry_target **target)
+{
+       struct ipt_NFQ_info *tinfo
+               = (struct ipt_NFQ_info *)(*target)->data;
+
+       switch (c) {
+       case 'F':
+               if (*flags)
+                       exit_error(PARAMETER_PROBLEM, "NFQUEUE target: "
+                                  "Only use --queue-num ONCE!");
+               parse_num(optarg, tinfo);
+               break;
+       default:
+               return 0;
+       }
+
+       return 1;
+}
+
+static void
+final_check(unsigned int flags)
+{
+}
+
+/* Prints out the targinfo. */
+static void
+print(const struct ip6t_ip6 *ip,
+      const struct ip6t_entry_target *target,
+      int numeric)
+{
+       const struct ipt_NFQ_info *tinfo =
+               (const struct ipt_NFQ_info *)target->data;
+       printf("NFQUEUE num %u", tinfo->queuenum);
+}
+
+/* Saves the union ip6t_targinfo in parsable form to stdout. */
+static void
+save(const struct ip6t_ip6 *ip, const struct ip6t_entry_target *target)
+{
+       const struct ipt_NFQ_info *tinfo =
+               (const struct ipt_NFQ_info *)target->data;
+
+       printf("--queue-num %u ", tinfo->queuenum);
+}
+
+static struct ip6tables_target nfqueue = { 
+       .next           = NULL,
+       .name           = "NFQUEUE",
+       .version        = IPTABLES_VERSION,
+       .size           = IP6T_ALIGN(sizeof(struct ipt_NFQ_info)),
+       .userspacesize  = IP6T_ALIGN(sizeof(struct ipt_NFQ_info)),
+       .help           = &help,
+       .init           = &init,
+       .parse          = &parse,
+       .final_check    = &final_check,
+       .print          = &print,
+       .save           = &save,
+       .extra_opts     = opts
+};
+
+void _init(void)
+{
+       register_target6(&nfqueue);
+}