2005-04-16 16:20:36 -06:00
|
|
|
#ifndef __LINUX_BRIDGE_EBT_802_3_H
|
|
|
|
#define __LINUX_BRIDGE_EBT_802_3_H
|
|
|
|
|
2011-01-20 09:50:17 -07:00
|
|
|
#include <linux/types.h>
|
|
|
|
|
2005-04-16 16:20:36 -06:00
|
|
|
#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 {
|
2011-01-17 23:33:09 -07:00
|
|
|
__u8 dsap;
|
|
|
|
__u8 ssap;
|
|
|
|
__u8 ctrl;
|
|
|
|
__u8 orig[3];
|
2006-11-14 22:11:51 -07:00
|
|
|
__be16 type;
|
2005-04-16 16:20:36 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
struct hdr_ni {
|
2011-01-17 23:33:09 -07:00
|
|
|
__u8 dsap;
|
|
|
|
__u8 ssap;
|
2006-11-14 22:11:51 -07:00
|
|
|
__be16 ctrl;
|
2011-01-17 23:33:09 -07:00
|
|
|
__u8 orig[3];
|
2006-11-14 22:11:51 -07:00
|
|
|
__be16 type;
|
2005-04-16 16:20:36 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
struct ebt_802_3_hdr {
|
2011-01-17 23:33:09 -07:00
|
|
|
__u8 daddr[6];
|
|
|
|
__u8 saddr[6];
|
2006-11-14 22:11:51 -07:00
|
|
|
__be16 len;
|
2005-04-16 16:20:36 -06:00
|
|
|
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)
|
|
|
|
{
|
2007-03-19 16:33:04 -06:00
|
|
|
return (struct ebt_802_3_hdr *)skb_mac_header(skb);
|
2005-04-16 16:20:36 -06:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2009-11-04 10:50:58 -07:00
|
|
|
struct ebt_802_3_info {
|
2011-01-17 23:33:09 -07:00
|
|
|
__u8 sap;
|
2006-11-14 22:11:51 -07:00
|
|
|
__be16 type;
|
2011-01-17 23:33:09 -07:00
|
|
|
__u8 bitmask;
|
|
|
|
__u8 invflags;
|
2005-04-16 16:20:36 -06:00
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|