--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/include/linux/netfilter_bridge/ebt_802_3.h Sun Jan 11 20:20:11 2009 +0100
@@ -0,0 +1,69 @@
+#ifndef __LINUX_BRIDGE_EBT_802_3_H
+#define __LINUX_BRIDGE_EBT_802_3_H
+
+#define EBT_802_3_SAP 0x01
+#define EBT_802_3_TYPE 0x02
+
+#define EBT_802_3_MATCH "802_3"
+
+/*
+ * If frame has DSAP/SSAP value 0xaa you must check the SNAP type
+ * to discover what kind of packet we're carrying.
+ */
+#define CHECK_TYPE 0xaa
+
+/*
+ * Control field may be one or two bytes. If the first byte has
+ * the value 0x03 then the entire length is one byte, otherwise it is two.
+ * One byte controls are used in Unnumbered Information frames.
+ * Two byte controls are used in Numbered Information frames.
+ */
+#define IS_UI 0x03
+
+#define EBT_802_3_MASK (EBT_802_3_SAP | EBT_802_3_TYPE | EBT_802_3)
+
+/* ui has one byte ctrl, ni has two */
+struct hdr_ui {
+ uint8_t dsap;
+ uint8_t ssap;
+ uint8_t ctrl;
+ uint8_t orig[3];
+ __be16 type;
+};
+
+struct hdr_ni {
+ uint8_t dsap;
+ uint8_t ssap;
+ __be16 ctrl;
+ uint8_t orig[3];
+ __be16 type;
+};
+
+struct ebt_802_3_hdr {
+ uint8_t daddr[6];
+ uint8_t saddr[6];
+ __be16 len;
+ union {
+ struct hdr_ui ui;
+ struct hdr_ni ni;
+ } llc;
+};
+
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct ebt_802_3_hdr *ebt_802_3_hdr(const struct sk_buff *skb)
+{
+ return (struct ebt_802_3_hdr *)skb_mac_header(skb);
+}
+#endif
+
+struct ebt_802_3_info
+{
+ uint8_t sap;
+ __be16 type;
+ uint8_t bitmask;
+ uint8_t invflags;
+};
+
+#endif