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352 lines
11 KiB
C
352 lines
11 KiB
C
/*
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*
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* ===================================
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* HARP | Host ATM Research Platform
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* ===================================
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*
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*
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* This Host ATM Research Platform ("HARP") file (the "Software") is
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* made available by Network Computing Services, Inc. ("NetworkCS")
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* "AS IS". NetworkCS does not provide maintenance, improvements or
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* support of any kind.
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*
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* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
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* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
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* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
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* In no event shall NetworkCS be responsible for any damages, including
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* but not limited to consequential damages, arising from or relating to
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* any use of the Software or related support.
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*
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* Copyright 1994-1998 Network Computing Services, Inc.
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*
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* Copies of this Software may be made, however, the above copyright
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* notice must be reproduced on all copies.
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*
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* @(#) $FreeBSD$
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*
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*/
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/*
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* Core ATM Services
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* -----------------
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*
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* ATM Connection Management definitions
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*
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*/
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#ifndef _NETATM_ATM_CM_H
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#define _NETATM_ATM_CM_H
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/*
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* Forward declaration
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*/
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struct atm_connection;
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struct atm_attributes;
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#ifdef _KERNEL
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/*
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* Structure used to define a kernel ATM endpoint service module and its
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* associated entry points. An endpoint service is defined as a kernel
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* entity which will serve as the endpoint of an ATM connection, i.e. it is
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* responsible for issuing/receiving requests to/from the connection manager.
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*/
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struct atm_endpoint {
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struct atm_endpoint *ep_next; /* Next in registry list */
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u_int ep_id; /* Endpoint ID (see below) */
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/* Exported functions: Miscellaneous */
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int (*ep_ioctl) /* Ioctl */
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(int, caddr_t, caddr_t);
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caddr_t (*ep_getname) /* Get application/owner name */
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(void *);
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/* Exported functions: Connection Manager Control API */
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void (*ep_connected) /* Call connected */
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(void *);
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void (*ep_cleared) /* Call cleared */
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(void *, struct t_atm_cause *);
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int (*ep_incoming) /* Incoming call */
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(void *, struct atm_connection *,
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struct atm_attributes *, void **);
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int (*ep_addparty) /* Add Party notification */
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(void *, int, int);
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int (*ep_dropparty) /* Drop Party notification */
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(void *, int, int);
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/* Exported functions: Connection Manager Data API: CPCS */
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void (*ep_cpcs_ctl) /* Control operation */
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(int, void *, void *);
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void (*ep_cpcs_data) /* Received data */
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(void *, KBuffer *);
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/* Exported functions: Connection Manager Data API: SAAL */
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void (*ep_saal_ctl) /* Control operation */
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(int, void *, void *);
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void (*ep_saal_data) /* Received data */
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(void *, KBuffer *);
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/* Exported functions: Connection Manager Data API: SSCOP */
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void (*ep_sscop_ctl) /* Control operation */
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(int, void *, void *, void *);
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void (*ep_sscop_data) /* Received data */
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(void *, KBuffer *, u_int);
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};
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typedef struct atm_endpoint Atm_endpoint;
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#endif /* _KERNEL */
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/*
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* Endpoint IDs
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*/
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#define ENDPT_UNKNOWN 0 /* Unknown */
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#define ENDPT_IP 1 /* IP over ATM */
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#define ENDPT_ATMARP 2 /* ATMARP */
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#define ENDPT_SPANS_SIG 3 /* SPANS Signalling */
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#define ENDPT_SPANS_CLS 4 /* SPANS CLS */
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#define ENDPT_UNI_SIG 5 /* UNI Signalling */
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#define ENDPT_SOCK_AAL5 6 /* Socket - AAL5 */
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#define ENDPT_SOCK_SSCOP 7 /* Socket - SSCOP */
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#define ENDPT_MAX 7
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/*
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* ATM Connection Attributes
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*
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* Note: Attribute tag values are the same as the SVE_tag values.
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* Unless otherwise specified, attribute field values are the same
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* as the corresponding socket option values.
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* The above values are all defined in netatm/atm.h.
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*/
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/* AAL Attributes */
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struct t_atm_aal4 {
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int32_t forward_max_SDU_size;
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int32_t backward_max_SDU_size;
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int32_t SSCS_type;
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int32_t mid_low;
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int32_t mid_high;
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};
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struct attr_aal {
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int tag; /* Attribute tag */
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Aal_t type; /* AAL type (discriminator) */
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union {
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struct t_atm_aal4 aal4;
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struct t_atm_aal5 aal5;
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} v; /* Attribute value */
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};
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/* Traffic Descriptor Attributes */
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struct attr_traffic {
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int tag; /* Attribute tag */
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struct t_atm_traffic v; /* Attribute value */
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};
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/* Broadband Bearer Attributes */
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struct attr_bearer {
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int tag; /* Attribute tag */
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struct t_atm_bearer v; /* Attribute value */
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};
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/* Broadband High Layer Information Attributes */
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struct attr_bhli {
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int tag; /* Attribute tag */
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struct t_atm_bhli v; /* Attribute value */
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};
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/* Broadband Low Layer Information Attributes */
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struct attr_blli {
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int tag_l2; /* Layer 2 attribute tag */
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int tag_l3; /* Layer 3 attribute tag */
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struct t_atm_blli v; /* Attribute value */
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};
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/* Logical Link Control Attributes (multiplexing use only, not signalled) */
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struct attr_llc {
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int tag; /* Attribute tag */
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struct t_atm_llc v; /* Attribute value */
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};
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/* Called Party Attributes */
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struct attr_called {
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int tag; /* Attribute tag */
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Atm_addr addr; /* Called party address */
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Atm_addr subaddr; /* Called party subaddress */
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};
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/* Calling Party Attributes */
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struct attr_calling {
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int tag; /* Attribute tag */
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Atm_addr addr; /* Calling party address */
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Atm_addr subaddr; /* Calling party subaddress */
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struct t_atm_caller_id cid; /* Caller ID */
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};
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/* Quality of Service Attributes */
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struct attr_qos {
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int tag; /* Attribute tag */
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struct t_atm_qos v; /* Attribute value */
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};
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/* Transit Network Attributes */
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struct attr_transit {
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int tag; /* Attribute tag */
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struct t_atm_transit v; /* Attribute value */
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};
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/* Cause Attributes */
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struct attr_cause {
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int tag; /* Attribute tag */
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struct t_atm_cause v; /* Attribute value */
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};
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struct atm_attributes {
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struct atm_nif *nif; /* Network interface */
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u_int api; /* Connect Mgr Data API (see below) */
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int api_init;/* API initialization parameter */
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u_short headin; /* Input buffer headroom */
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u_short headout;/* Output buffer headroom */
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struct attr_aal aal; /* AAL attributes */
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struct attr_traffic traffic;/* Traffic descriptor attributes */
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struct attr_bearer bearer; /* Broadband bearer attributes */
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struct attr_bhli bhli; /* Broadband high layer attributes */
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struct attr_blli blli; /* Broadband low layer attributes */
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struct attr_llc llc; /* Logical link control attributes */
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struct attr_called called; /* Called party attributes */
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struct attr_calling calling;/* Calling party attributes */
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struct attr_qos qos; /* Quality of service attributes */
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struct attr_transit transit;/* Transit network attributes */
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struct attr_cause cause; /* Cause attributes */
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};
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typedef struct atm_attributes Atm_attributes;
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/*
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* Connection Manager Data APIs
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*/
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#define CMAPI_CPCS 0 /* AAL CPCS */
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#define CMAPI_SAAL 1 /* Signalling AAL */
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#define CMAPI_SSCOP 2 /* Reliable data (SSCOP) */
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#ifdef _KERNEL
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/*
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* ATM Connection Instance
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*
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* There will be one connection block for each endpoint <-> Connection Manager
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* API instance. Note that with connection multiplexors (e.g. LLC), there
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* may be multiple connections per VCC.
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*/
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struct atm_connection {
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struct atm_connection *co_next; /* Multiplexor/listen queue link */
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struct atm_connection *co_mxh; /* Connection multiplexor head */
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u_char co_flags; /* Connection flags (see below) */
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u_char co_state; /* User <-> CM state (see below) */
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Encaps_t co_mpx; /* Multiplexor type */
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void *co_toku; /* Endpoint's session token */
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Atm_endpoint *co_endpt; /* Endpoint service */
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struct atm_connvc *co_connvc; /* Connection VCC */
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struct attr_llc co_llc; /* Connection LLC header */
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Atm_attributes *co_lattr; /* Listening attributes */
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};
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typedef struct atm_connection Atm_connection;
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/*
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* Connection Flags
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*/
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#define COF_P2P 0x01 /* Point-to-point */
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#define COF_P2MP 0x02 /* Point-to-multipoint */
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/*
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* Endpoint <-> Connection Manager States
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*/
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#define COS_FREE 0 /* Not allocated */
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#define COS_OUTCONN 1 /* Outgoing connection pending */
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#define COS_LISTEN 2 /* Listening for connection */
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#define COS_INCONN 3 /* Incoming connection pending */
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#define COS_INACCEPT 4 /* Incoming connection accepted */
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#define COS_ACTIVE 5 /* Connection active */
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#define COS_CLEAR 6 /* Connection is clearing */
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/*
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* ATM Connection VCC Instance
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*
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* There will be one connection-vcc block for each VCC created by the
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* Connection Manager. For multiplexed connections, there may be multiple
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* connection blocks associated with each connection-vcc. This block is
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* used to control the Connection Manager <-> VCC interface, including the
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* interfaces to stack management and the signalling manager.
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*/
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struct atm_connvc {
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Qelem_t cvc_q; /* Queueing links */
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Atm_connection *cvc_conn; /* Connection head */
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struct vccb *cvc_vcc; /* VCC for connection */
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struct sigmgr *cvc_sigmgr; /* VCC signalling manager */
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u_char cvc_flags; /* Connection flags (see below) */
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u_char cvc_state; /* CM - VCC state (see below) */
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void *cvc_tokl; /* Stack lower layer token */
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void (*cvc_lower) /* Stack lower layer handler */
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(int, void *, int, int);
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u_short cvc_upcnt; /* Up stack calls in progress */
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u_short cvc_downcnt; /* Down stack calls in progress */
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KBuffer *cvc_rcvq; /* Packet receive queue */
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int cvc_rcvqlen; /* Receive queue length */
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Atm_attributes cvc_attr; /* VCC attributes */
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struct atm_time cvc_time; /* Timer controls */
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};
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typedef struct atm_connvc Atm_connvc;
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/*
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* Connection Flags
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*/
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#define CVCF_ABORTING 0x01 /* VCC abort is pending */
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#define CVCF_INCOMQ 0x02 /* VCC is on incoming queue */
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#define CVCF_CONNQ 0x04 /* VCC is on connection queue */
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#define CVCF_CALLER 0x08 /* We are the call originator */
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/*
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* Connection Manager <-> VCC States
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*/
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#define CVCS_FREE 0 /* Not allocated */
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#define CVCS_SETUP 1 /* Call setup pending */
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#define CVCS_INIT 2 /* Stack INIT pending */
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#define CVCS_INCOMING 3 /* Incoming call present */
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#define CVCS_ACCEPT 4 /* Incoming call accepted */
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#define CVCS_REJECT 5 /* Incoming call rejected */
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#define CVCS_ACTIVE 6 /* Stack active */
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#define CVCS_RELEASE 7 /* Connection release pending */
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#define CVCS_CLEAR 8 /* Call has been cleared */
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#define CVCS_TERM 9 /* Stack TERM pending */
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/*
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* Connection VCC variables
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*/
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#define CVC_RCVQ_MAX 3 /* Max length of receive queue */
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/*
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* Timer macros
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*/
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#define CVC_TIMER(s, t) atm_timeout(&(s)->cvc_time, (t), atm_cm_timeout)
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#define CVC_CANCEL(s) atm_untimeout(&(s)->cvc_time)
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/*
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* Connection Manager Statistics
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*/
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struct atm_cm_stat {
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u_long cms_llcdrop; /* Packets dropped by llc demux'ing */
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u_long cms_llcid; /* Packets with unknown llc id */
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u_long cms_rcvconn; /* Packets dropped, bad conn state */
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u_long cms_rcvconnvc; /* Packets dropped, bad connvc state */
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};
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void atm_cm_init(void);
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#endif /* _KERNEL */
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#endif /* _NETATM_ATM_CM_H */
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