diff options
Diffstat (limited to 'contrib/tcpdump/arcnet.h')
| -rw-r--r-- | contrib/tcpdump/arcnet.h | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/contrib/tcpdump/arcnet.h b/contrib/tcpdump/arcnet.h index 89867e0..6e649f6 100644 --- a/contrib/tcpdump/arcnet.h +++ b/contrib/tcpdump/arcnet.h @@ -30,13 +30,13 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * @(#) $Id: arcnet.h,v 1.1 2001/04/17 08:39:18 guy Exp $ (LBL) + * @(#) $Id: arcnet.h,v 1.3 2003/01/23 09:05:37 guy Exp $ (LBL) * * from: NetBSD: if_arc.h,v 1.13 1999/11/19 20:41:19 thorpej Exp */ /* - * Structure of a 2.5MB/s Arcnet header. + * Structure of a 2.5MB/s Arcnet header on the BSDs, * as given to interface code. */ struct arc_header { @@ -56,7 +56,7 @@ struct arc_header { u_int8_t arc_type2; /* same as arc_type */ u_int8_t arc_flag2; /* real flag value */ u_int16_t arc_seqid2; /* real seqid value */ -} __attribute__((__packed__)); +}; #define ARC_HDRLEN 3 #define ARC_HDRNEWLEN 6 @@ -77,3 +77,25 @@ struct arc_header { #define ARCTYPE_INET6 0xc4 /* IPng */ #define ARCTYPE_DIAGNOSE 0x80 /* as per ANSI/ATA 878.1 */ + +/* + * Structure of a 2.5MB/s Arcnet header on Linux. Linux has + * an extra "offset" field when given to interface code, and + * never presents packets that look like exception frames. + */ +struct arc_linux_header { + u_int8_t arc_shost; + u_int8_t arc_dhost; + u_int16_t arc_offset; + u_int8_t arc_type; + /* + * only present for newstyle encoding with LL fragmentation. + * Don't use sizeof(anything), use ARC_LINUX_HDR{,NEW}LEN + * instead. + */ + u_int8_t arc_flag; + u_int16_t arc_seqid; +}; + +#define ARC_LINUX_HDRLEN 5 +#define ARC_LINUX_HDRNEWLEN 8 |
