/* atmsvc.h - ATM signaling kernel-demon interface definitions */

/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */


#ifndef _LINUX_ATMSVC_H
#define _LINUX_ATMSVC_H

#include <linux/atmapi.h>
#include <linux/atm.h>
#include <linux/atmioc.h>


#define ATMSIGD_CTRL _IO('a',ATMIOC_SPECIAL)
/* become ATM signaling demon control socket */

enum atmsvc_msg_type { as_catch_null, as_bind, as_connect, as_accept, as_reject,
as_listen, as_okay, as_error, as_indicate, as_close,
as_itf_notify, as_modify, as_identify, as_terminate,
as_addparty, as_dropparty };

struct atmsvc_msg {
enum atmsvc_msg_type type;
atm_kptr_t vcc;
atm_kptr_t listen_vcc; /* indicate */
int reply; /* for okay and close: */
/* < 0: error before active */
/* (sigd has discarded ctx) */
/* ==0: success */
/* > 0: error when active (still */
/* need to close) */
struct sockaddr_atmpvc pvc; /* indicate, okay (connect) */
struct sockaddr_atmsvc local; /* local SVC address */
struct atm_qos qos; /* QOS parameters */
struct atm_sap sap; /* SAP */
unsigned int session; /* for p2pm */
struct sockaddr_atmsvc svc; /* SVC address */
} __ATM_API_ALIGN;

/*
* Message contents: see ftp://icaftp.epfl.ch/pub/linux/atm/docs/isp-*.tar.gz
*/

/*
* Some policy stuff for atmsigd and for net/atm/svc.c. Both have to agree on
* what PCR is used to request bandwidth from the device driver. net/atm/svc.c
* tries to do better than that, but only if there's no routing decision (i.e.
* if signaling only uses one ATM interface).
*/

#define SELECT_TOP_PCR(tp) ((tp).pcr ? (tp).pcr : \
(tp).max_pcr && (tp).max_pcr != ATM_MAX_PCR ? (tp).max_pcr : \
(tp).min_pcr ? (tp).min_pcr : ATM_MAX_PCR)

#endif