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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* 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
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