freebsd-dev/sys/netatm/atm_cm.h
2002-05-07 20:12:29 +00:00

352 lines
11 KiB
C

/*
*
* ===================================
* 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.
*
* @(#) $FreeBSD$
*
*/
/*
* Core ATM Services
* -----------------
*
* ATM Connection Management definitions
*
*/
#ifndef _NETATM_ATM_CM_H
#define _NETATM_ATM_CM_H
/*
* Forward declaration
*/
struct atm_connection;
struct atm_attributes;
#ifdef _KERNEL
/*
* Structure used to define a kernel ATM endpoint service module and its
* associated entry points. An endpoint service is defined as a kernel
* entity which will serve as the endpoint of an ATM connection, i.e. it is
* responsible for issuing/receiving requests to/from the connection manager.
*/
struct atm_endpoint {
struct atm_endpoint *ep_next; /* Next in registry list */
u_int ep_id; /* Endpoint ID (see below) */
/* Exported functions: Miscellaneous */
int (*ep_ioctl) /* Ioctl */
(int, caddr_t, caddr_t);
caddr_t (*ep_getname) /* Get application/owner name */
(void *);
/* Exported functions: Connection Manager Control API */
void (*ep_connected) /* Call connected */
(void *);
void (*ep_cleared) /* Call cleared */
(void *, struct t_atm_cause *);
int (*ep_incoming) /* Incoming call */
(void *, struct atm_connection *,
struct atm_attributes *, void **);
int (*ep_addparty) /* Add Party notification */
(void *, int, int);
int (*ep_dropparty) /* Drop Party notification */
(void *, int, int);
/* Exported functions: Connection Manager Data API: CPCS */
void (*ep_cpcs_ctl) /* Control operation */
(int, void *, void *);
void (*ep_cpcs_data) /* Received data */
(void *, KBuffer *);
/* Exported functions: Connection Manager Data API: SAAL */
void (*ep_saal_ctl) /* Control operation */
(int, void *, void *);
void (*ep_saal_data) /* Received data */
(void *, KBuffer *);
/* Exported functions: Connection Manager Data API: SSCOP */
void (*ep_sscop_ctl) /* Control operation */
(int, void *, void *, void *);
void (*ep_sscop_data) /* Received data */
(void *, KBuffer *, u_int);
};
typedef struct atm_endpoint Atm_endpoint;
#endif /* _KERNEL */
/*
* Endpoint IDs
*/
#define ENDPT_UNKNOWN 0 /* Unknown */
#define ENDPT_IP 1 /* IP over ATM */
#define ENDPT_ATMARP 2 /* ATMARP */
#define ENDPT_SPANS_SIG 3 /* SPANS Signalling */
#define ENDPT_SPANS_CLS 4 /* SPANS CLS */
#define ENDPT_UNI_SIG 5 /* UNI Signalling */
#define ENDPT_SOCK_AAL5 6 /* Socket - AAL5 */
#define ENDPT_SOCK_SSCOP 7 /* Socket - SSCOP */
#define ENDPT_MAX 7
/*
* ATM Connection Attributes
*
* Note: Attribute tag values are the same as the SVE_tag values.
* Unless otherwise specified, attribute field values are the same
* as the corresponding socket option values.
* The above values are all defined in netatm/atm.h.
*/
/* AAL Attributes */
struct t_atm_aal4 {
int32_t forward_max_SDU_size;
int32_t backward_max_SDU_size;
int32_t SSCS_type;
int32_t mid_low;
int32_t mid_high;
};
struct attr_aal {
int tag; /* Attribute tag */
Aal_t type; /* AAL type (discriminator) */
union {
struct t_atm_aal4 aal4;
struct t_atm_aal5 aal5;
} v; /* Attribute value */
};
/* Traffic Descriptor Attributes */
struct attr_traffic {
int tag; /* Attribute tag */
struct t_atm_traffic v; /* Attribute value */
};
/* Broadband Bearer Attributes */
struct attr_bearer {
int tag; /* Attribute tag */
struct t_atm_bearer v; /* Attribute value */
};
/* Broadband High Layer Information Attributes */
struct attr_bhli {
int tag; /* Attribute tag */
struct t_atm_bhli v; /* Attribute value */
};
/* Broadband Low Layer Information Attributes */
struct attr_blli {
int tag_l2; /* Layer 2 attribute tag */
int tag_l3; /* Layer 3 attribute tag */
struct t_atm_blli v; /* Attribute value */
};
/* Logical Link Control Attributes (multiplexing use only, not signalled) */
struct attr_llc {
int tag; /* Attribute tag */
struct t_atm_llc v; /* Attribute value */
};
/* Called Party Attributes */
struct attr_called {
int tag; /* Attribute tag */
Atm_addr addr; /* Called party address */
Atm_addr subaddr; /* Called party subaddress */
};
/* Calling Party Attributes */
struct attr_calling {
int tag; /* Attribute tag */
Atm_addr addr; /* Calling party address */
Atm_addr subaddr; /* Calling party subaddress */
struct t_atm_caller_id cid; /* Caller ID */
};
/* Quality of Service Attributes */
struct attr_qos {
int tag; /* Attribute tag */
struct t_atm_qos v; /* Attribute value */
};
/* Transit Network Attributes */
struct attr_transit {
int tag; /* Attribute tag */
struct t_atm_transit v; /* Attribute value */
};
/* Cause Attributes */
struct attr_cause {
int tag; /* Attribute tag */
struct t_atm_cause v; /* Attribute value */
};
struct atm_attributes {
struct atm_nif *nif; /* Network interface */
u_int api; /* Connect Mgr Data API (see below) */
int api_init;/* API initialization parameter */
u_short headin; /* Input buffer headroom */
u_short headout;/* Output buffer headroom */
struct attr_aal aal; /* AAL attributes */
struct attr_traffic traffic;/* Traffic descriptor attributes */
struct attr_bearer bearer; /* Broadband bearer attributes */
struct attr_bhli bhli; /* Broadband high layer attributes */
struct attr_blli blli; /* Broadband low layer attributes */
struct attr_llc llc; /* Logical link control attributes */
struct attr_called called; /* Called party attributes */
struct attr_calling calling;/* Calling party attributes */
struct attr_qos qos; /* Quality of service attributes */
struct attr_transit transit;/* Transit network attributes */
struct attr_cause cause; /* Cause attributes */
};
typedef struct atm_attributes Atm_attributes;
/*
* Connection Manager Data APIs
*/
#define CMAPI_CPCS 0 /* AAL CPCS */
#define CMAPI_SAAL 1 /* Signalling AAL */
#define CMAPI_SSCOP 2 /* Reliable data (SSCOP) */
#ifdef _KERNEL
/*
* ATM Connection Instance
*
* There will be one connection block for each endpoint <-> Connection Manager
* API instance. Note that with connection multiplexors (e.g. LLC), there
* may be multiple connections per VCC.
*/
struct atm_connection {
struct atm_connection *co_next; /* Multiplexor/listen queue link */
struct atm_connection *co_mxh; /* Connection multiplexor head */
u_char co_flags; /* Connection flags (see below) */
u_char co_state; /* User <-> CM state (see below) */
Encaps_t co_mpx; /* Multiplexor type */
void *co_toku; /* Endpoint's session token */
Atm_endpoint *co_endpt; /* Endpoint service */
struct atm_connvc *co_connvc; /* Connection VCC */
struct attr_llc co_llc; /* Connection LLC header */
Atm_attributes *co_lattr; /* Listening attributes */
};
typedef struct atm_connection Atm_connection;
/*
* Connection Flags
*/
#define COF_P2P 0x01 /* Point-to-point */
#define COF_P2MP 0x02 /* Point-to-multipoint */
/*
* Endpoint <-> Connection Manager States
*/
#define COS_FREE 0 /* Not allocated */
#define COS_OUTCONN 1 /* Outgoing connection pending */
#define COS_LISTEN 2 /* Listening for connection */
#define COS_INCONN 3 /* Incoming connection pending */
#define COS_INACCEPT 4 /* Incoming connection accepted */
#define COS_ACTIVE 5 /* Connection active */
#define COS_CLEAR 6 /* Connection is clearing */
/*
* ATM Connection VCC Instance
*
* There will be one connection-vcc block for each VCC created by the
* Connection Manager. For multiplexed connections, there may be multiple
* connection blocks associated with each connection-vcc. This block is
* used to control the Connection Manager <-> VCC interface, including the
* interfaces to stack management and the signalling manager.
*/
struct atm_connvc {
Qelem_t cvc_q; /* Queueing links */
Atm_connection *cvc_conn; /* Connection head */
struct vccb *cvc_vcc; /* VCC for connection */
struct sigmgr *cvc_sigmgr; /* VCC signalling manager */
u_char cvc_flags; /* Connection flags (see below) */
u_char cvc_state; /* CM - VCC state (see below) */
void *cvc_tokl; /* Stack lower layer token */
void (*cvc_lower) /* Stack lower layer handler */
(int, void *, int, int);
u_short cvc_upcnt; /* Up stack calls in progress */
u_short cvc_downcnt; /* Down stack calls in progress */
KBuffer *cvc_rcvq; /* Packet receive queue */
int cvc_rcvqlen; /* Receive queue length */
Atm_attributes cvc_attr; /* VCC attributes */
struct atm_time cvc_time; /* Timer controls */
};
typedef struct atm_connvc Atm_connvc;
/*
* Connection Flags
*/
#define CVCF_ABORTING 0x01 /* VCC abort is pending */
#define CVCF_INCOMQ 0x02 /* VCC is on incoming queue */
#define CVCF_CONNQ 0x04 /* VCC is on connection queue */
#define CVCF_CALLER 0x08 /* We are the call originator */
/*
* Connection Manager <-> VCC States
*/
#define CVCS_FREE 0 /* Not allocated */
#define CVCS_SETUP 1 /* Call setup pending */
#define CVCS_INIT 2 /* Stack INIT pending */
#define CVCS_INCOMING 3 /* Incoming call present */
#define CVCS_ACCEPT 4 /* Incoming call accepted */
#define CVCS_REJECT 5 /* Incoming call rejected */
#define CVCS_ACTIVE 6 /* Stack active */
#define CVCS_RELEASE 7 /* Connection release pending */
#define CVCS_CLEAR 8 /* Call has been cleared */
#define CVCS_TERM 9 /* Stack TERM pending */
/*
* Connection VCC variables
*/
#define CVC_RCVQ_MAX 3 /* Max length of receive queue */
/*
* Timer macros
*/
#define CVC_TIMER(s, t) atm_timeout(&(s)->cvc_time, (t), atm_cm_timeout)
#define CVC_CANCEL(s) atm_untimeout(&(s)->cvc_time)
/*
* Connection Manager Statistics
*/
struct atm_cm_stat {
u_long cms_llcdrop; /* Packets dropped by llc demux'ing */
u_long cms_llcid; /* Packets with unknown llc id */
u_long cms_rcvconn; /* Packets dropped, bad conn state */
u_long cms_rcvconnvc; /* Packets dropped, bad connvc state */
};
void atm_cm_init(void);
#endif /* _KERNEL */
#endif /* _NETATM_ATM_CM_H */