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N>_I|+azD 7qF 9i #ifndef LLC_PDU_H
#define LLC_PDU_H
/*
* Copyright (c) 1997 by Procom Technology,Inc.
* 2001-2003 by Arnaldo Carvalho de Melo
*
* This program can be redistributed or modified under the terms of the
* GNU General Public License as published by the Free Software Foundation.
* This program is distributed without any warranty or implied warranty
* of merchantability or fitness for a particular purpose.
*
* See the GNU General Public License for more details.
*/
#include
/* Lengths of frame formats */
#define LLC_PDU_LEN_I 4 /* header and 2 control bytes */
#define LLC_PDU_LEN_S 4
#define LLC_PDU_LEN_U 3 /* header and 1 control byte */
/* header and 1 control byte and XID info */
#define LLC_PDU_LEN_U_XID (LLC_PDU_LEN_U + sizeof(struct llc_xid_info))
/* Known SAP addresses */
#define LLC_GLOBAL_SAP 0xFF
#define LLC_NULL_SAP 0x00 /* not network-layer visible */
#define LLC_MGMT_INDIV 0x02 /* station LLC mgmt indiv addr */
#define LLC_MGMT_GRP 0x03 /* station LLC mgmt group addr */
#define LLC_RDE_SAP 0xA6 /* route ... */
/* SAP field bit masks */
#define LLC_ISO_RESERVED_SAP 0x02
#define LLC_SAP_GROUP_DSAP 0x01
#define LLC_SAP_RESP_SSAP 0x01
/* Group/individual DSAP indicator is DSAP field */
#define LLC_PDU_GROUP_DSAP_MASK 0x01
#define LLC_PDU_IS_GROUP_DSAP(pdu) \
((pdu->dsap & LLC_PDU_GROUP_DSAP_MASK) ? 0 : 1)
#define LLC_PDU_IS_INDIV_DSAP(pdu) \
(!(pdu->dsap & LLC_PDU_GROUP_DSAP_MASK) ? 0 : 1)
/* Command/response PDU indicator in SSAP field */
#define LL