diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-02-11 16:16:50 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2015-02-11 16:19:24 +0100 |
commit | 87f82cbd4f94cca74eb58506e117f226a2270759 (patch) | |
tree | c49b2f0ba1b80c0953c41f6c865cab92e30038eb /include/linux/netfilter_bridge/ebt_802_3.h | |
parent | aa562a660d1555b13cffbac1e744033e91f82707 (diff) | |
parent | 24775a7a3178c163302560d2bd74ecc6ed0f7af4 (diff) |
Merge branch 'ebtables-compat'
The ebtables-compat branch provides the compatibility layer to run
ebtables extensions. Currently, only the following matches / targets /
watchers are supported:
* 802_3
* ip
* mark_m and mark
* log
The remaining ones should be easy to port them to on top of libxtables,
they will follow up later.
Diffstat (limited to 'include/linux/netfilter_bridge/ebt_802_3.h')
-rw-r--r-- | include/linux/netfilter_bridge/ebt_802_3.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/include/linux/netfilter_bridge/ebt_802_3.h b/include/linux/netfilter_bridge/ebt_802_3.h new file mode 100644 index 00000000..f37522aa --- /dev/null +++ b/include/linux/netfilter_bridge/ebt_802_3.h @@ -0,0 +1,63 @@ +#ifndef _UAPI__LINUX_BRIDGE_EBT_802_3_H +#define _UAPI__LINUX_BRIDGE_EBT_802_3_H + +#include <linux/types.h> +#include <linux/if_ether.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 { + __u8 dsap; + __u8 ssap; + __u8 ctrl; + __u8 orig[3]; + __be16 type; +}; + +struct hdr_ni { + __u8 dsap; + __u8 ssap; + __be16 ctrl; + __u8 orig[3]; + __be16 type; +}; + +struct ebt_802_3_hdr { + __u8 daddr[ETH_ALEN]; + __u8 saddr[ETH_ALEN]; + __be16 len; + union { + struct hdr_ui ui; + struct hdr_ni ni; + } llc; +}; + + +struct ebt_802_3_info { + __u8 sap; + __be16 type; + __u8 bitmask; + __u8 invflags; +}; + +#endif /* _UAPI__LINUX_BRIDGE_EBT_802_3_H */ |