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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $Id: atm_sap.h,v 1.3 1998/02/19 19:59:38 mks Exp $
*
*/
/*
* Core ATM Services
* -----------------
*
* ATM Services definitions
*
*/
#ifndef _NETATM_ATM_SAP_H
#define _NETATM_ATM_SAP_H
/*
* Service Access Point (SAP)
*
* A SAP specifies the definition of an interface used between two adjacent
* layers. The SAP is named for the services the lower layer provides to
* the upper layer.
*
* The types of SAPs used are:
* Stack - defines the interfaces between stack service entities.
* These are further divided into:
*
* Stack class SAP - which identifies the type of interface
* used. All SAPs of a particular class will provide
* the same interface services to the higher layer.
* All stack command codes are constructed using class
* SAP values.
*
* Stack instance SAP - which identifies the specific identity
* of the layer providing the class interface.
*/
typedef u_short Sap_t;
#define SAP_TYPE_MASK 0xc000
#define SAP_TYPE_STACK 0x8000
#define SAP_CLASS_MASK 0xff80
#define SAP_STACK(c, i) (SAP_TYPE_STACK | ((c) << 7) | (i))
/* Stack SAPs */
#define SAP_ATM SAP_STACK(1, 0) /* ATM cell */
#define SAP_SAR SAP_STACK(2, 0) /* AAL SAR */
#define SAP_SAR_AAL3_4 SAP_STACK(2, 3) /* AAL3/4 SAR */
#define SAP_SAR_AAL5 SAP_STACK(2, 5) /* AAL5 SAR */
#define SAP_CPCS SAP_STACK(3, 0) /* AAL CPCS */
#define SAP_CPCS_AAL3_4 SAP_STACK(3, 3) /* AAL3/4 CPCS */
#define SAP_CPCS_AAL5 SAP_STACK(3, 5) /* AAL5 CPCS */
#define SAP_SSCOP SAP_STACK(4, 0) /* ITU Q.2110 */
#define SAP_SSCF_UNI SAP_STACK(5, 0) /* ITU Q.2130 */
#define SAP_SSCF_NNI SAP_STACK(6, 0) /* ITU Q.2140 */
#endif /* _NETATM_ATM_SAP_H */
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