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Diffstat (limited to 'kernel/linux/net/bridge/netfilter/ebt_mark.c')
-rw-r--r--kernel/linux/net/bridge/netfilter/ebt_mark.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/kernel/linux/net/bridge/netfilter/ebt_mark.c b/kernel/linux/net/bridge/netfilter/ebt_mark.c
new file mode 100644
index 0000000..1e4d98b
--- /dev/null
+++ b/kernel/linux/net/bridge/netfilter/ebt_mark.c
@@ -0,0 +1,69 @@
+/*
+ * ebt_mark_t
+ *
+ * Authors:
+ * Bart De Schuymer <bart.de.schuymer@pandora.be>
+ *
+ * July, 2002
+ *
+ */
+
+// The mark target can be used in any chain
+// I believe adding a mangle table just for marking is total overkill
+// Marking a frame doesn't really change anything in the frame anyway
+// The target member of the struct ebt_vlan_info provides the same
+// functionality as a separate table
+
+#include <linux/netfilter_bridge/ebtables.h>
+#include <linux/netfilter_bridge/ebt_mark_t.h>
+#include <linux/netfilter_bridge.h>
+#include <linux/skbuff.h>
+#include <linux/module.h>
+#include <net/sock.h>
+#include "../br_private.h"
+
+static int ebt_target_mark(struct sk_buff **pskb, unsigned int hooknr,
+ const struct net_device *in, const struct net_device *out,
+ const void *data, unsigned int datalen)
+{
+ struct ebt_mark_t_info *infostuff = (struct ebt_mark_t_info *) data;
+
+ if ((*pskb)->nfmark != infostuff->mark) {
+ (*pskb)->nfmark = infostuff->mark;
+ (*pskb)->nfcache |= NFC_ALTERED;
+ }
+ return infostuff->target;
+}
+
+static int ebt_target_mark_check(const char *tablename, unsigned int hookmask,
+ const struct ebt_entry *e, void *data, unsigned int datalen)
+{
+ struct ebt_mark_t_info *infostuff = (struct ebt_mark_t_info *) data;
+
+ if (datalen != sizeof(struct ebt_mark_t_info))
+ return -EINVAL;
+ if (infostuff->target < -NUM_STANDARD_TARGETS || infostuff->target >= 0)
+ return -EINVAL;
+ return 0;
+}
+
+static struct ebt_target mark_target =
+{
+ {NULL, NULL}, EBT_MARK_TARGET, ebt_target_mark,
+ ebt_target_mark_check, NULL, THIS_MODULE
+};
+
+static int __init init(void)
+{
+ return ebt_register_target(&mark_target);
+}
+
+static void __exit fini(void)
+{
+ ebt_unregister_target(&mark_target);
+}
+
+module_init(init);
+module_exit(fini);
+EXPORT_NO_SYMBOLS;
+MODULE_LICENSE("GPL");