X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=trunk%2Fextensions%2Flibxt_NFQUEUE.c;fp=trunk%2Fextensions%2Flibxt_NFQUEUE.c;h=49d0ebcf9af9509bf1f94eb43800e42843553e46;hb=65d1e3fdac47d3d758f6f018457c28d6f3f6306a;hp=0000000000000000000000000000000000000000;hpb=98c90cbcc6f660e13f9e7878bbb80dfc9d03ceae;p=iptables.git

diff --git a/trunk/extensions/libxt_NFQUEUE.c b/trunk/extensions/libxt_NFQUEUE.c
new file mode 100644
index 0000000..49d0ebc
--- /dev/null
+++ b/trunk/extensions/libxt_NFQUEUE.c
@@ -0,0 +1,113 @@
+/* Shared library add-on to iptables 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 <xtables.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_NFQUEUE.h>
+
+static void NFQUEUE_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 const struct option NFQUEUE_opts[] = {
+	{ "queue-num", 1, NULL, 'F' },
+	{ .name = NULL }
+};
+
+static void
+parse_num(const char *s, struct xt_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
+NFQUEUE_parse(int c, char **argv, int invert, unsigned int *flags,
+              const void *entry, struct xt_entry_target **target)
+{
+	struct xt_NFQ_info *tinfo
+		= (struct xt_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;
+}
+
+/* Prints out the targinfo. */
+static void NFQUEUE_print(const void *ip,
+                          const struct xt_entry_target *target, int numeric)
+{
+	const struct xt_NFQ_info *tinfo =
+		(const struct xt_NFQ_info *)target->data;
+	printf("NFQUEUE num %u", tinfo->queuenum);
+}
+
+/* Saves the union ipt_targinfo in parsable form to stdout. */
+static void NFQUEUE_save(const void *ip, const struct xt_entry_target *target)
+{
+	const struct xt_NFQ_info *tinfo =
+		(const struct xt_NFQ_info *)target->data;
+
+	printf("--queue-num %u ", tinfo->queuenum);
+}
+
+static struct xtables_target nfqueue_target = {
+	.family		= AF_INET,
+	.name		= "NFQUEUE",
+	.version	= XTABLES_VERSION,
+	.size		= XT_ALIGN(sizeof(struct xt_NFQ_info)),
+	.userspacesize	= XT_ALIGN(sizeof(struct xt_NFQ_info)),
+	.help		= NFQUEUE_help,
+	.parse		= NFQUEUE_parse,
+	.print		= NFQUEUE_print,
+	.save		= NFQUEUE_save,
+	.extra_opts	= NFQUEUE_opts
+};
+
+static struct xtables_target nfqueue_target6 = {
+	.family		= AF_INET6,
+	.name		= "NFQUEUE",
+	.version	= XTABLES_VERSION,
+	.size		= XT_ALIGN(sizeof(struct xt_NFQ_info)),
+	.userspacesize	= XT_ALIGN(sizeof(struct xt_NFQ_info)),
+	.help		= NFQUEUE_help,
+	.parse		= NFQUEUE_parse,
+	.print		= NFQUEUE_print,
+	.save		= NFQUEUE_save,
+	.extra_opts	= NFQUEUE_opts,
+};
+
+void _init(void)
+{
+	xtables_register_target(&nfqueue_target);
+	xtables_register_target(&nfqueue_target6);
+}