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

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

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

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#ifndef _LINUX_ATMSVC_H

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#define _LINUX_ATMSVC_H

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#include <linux/atmapi.h>

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#include <linux/atm.h>

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#include <linux/atmioc.h>

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#define ATMSIGD_CTRL _IO('a',ATMIOC_SPECIAL)

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/* become ATM signaling demon control socket */

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enum atmsvc_msg_type { as_catch_null, as_bind, as_connect, as_accept, as_reject,

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as_listen, as_okay, as_error, as_indicate, as_close,

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as_itf_notify, as_modify, as_identify, as_terminate,

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as_addparty, as_dropparty };

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struct atmsvc_msg {

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enum atmsvc_msg_type type;

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atm_kptr_t vcc;

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atm_kptr_t listen_vcc; /* indicate */

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int reply; /* for okay and close: */

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/* < 0: error before active */

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/* (sigd has discarded ctx) */

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/* ==0: success */

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/* > 0: error when active (still */

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/* need to close) */

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struct sockaddr_atmpvc pvc; /* indicate, okay (connect) */

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struct sockaddr_atmsvc local; /* local SVC address */

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struct atm_qos qos; /* QOS parameters */

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struct atm_sap sap; /* SAP */

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unsigned int session; /* for p2pm */

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struct sockaddr_atmsvc svc; /* SVC address */

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} __ATM_API_ALIGN;

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/*

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

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*/

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/*

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* Some policy stuff for atmsigd and for net/atm/svc.c. Both have to agree on

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* what PCR is used to request bandwidth from the device driver. net/atm/svc.c

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* tries to do better than that, but only if there's no routing decision (i.e.

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* if signaling only uses one ATM interface).

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*/

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#define SELECT_TOP_PCR(tp) ((tp).pcr ? (tp).pcr : \

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(tp).max_pcr && (tp).max_pcr != ATM_MAX_PCR ? (tp).max_pcr : \

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(tp).min_pcr ? (tp).min_pcr : ATM_MAX_PCR)

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#endif

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