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      1 /* atmsvc.h - ATM signaling kernel-demon interface definitions */
      2 
      3 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
      4 
      5 
      6 #ifndef _LINUX_ATMSVC_H
      7 #define _LINUX_ATMSVC_H
      8 
      9 #include <linux/atmapi.h>
     10 #include <linux/atm.h>
     11 #include <linux/atmioc.h>
     12 
     13 
     14 #define ATMSIGD_CTRL _IO('a',ATMIOC_SPECIAL)
     15 				/* become ATM signaling demon control socket */
     16 
     17 enum atmsvc_msg_type { as_catch_null, as_bind, as_connect, as_accept, as_reject,
     18 		       as_listen, as_okay, as_error, as_indicate, as_close,
     19 		       as_itf_notify, as_modify, as_identify, as_terminate,
     20 		       as_addparty, as_dropparty };
     21 
     22 struct atmsvc_msg {
     23 	enum atmsvc_msg_type type;
     24 	atm_kptr_t vcc;
     25 	atm_kptr_t listen_vcc;		/* indicate */
     26 	int reply;			/* for okay and close:		   */
     27 					/*   < 0: error before active	   */
     28 					/*        (sigd has discarded ctx) */
     29 					/*   ==0: success		   */
     30 				        /*   > 0: error when active (still */
     31 					/*        need to close)	   */
     32 	struct sockaddr_atmpvc pvc;	/* indicate, okay (connect) */
     33 	struct sockaddr_atmsvc local;	/* local SVC address */
     34 	struct atm_qos qos;		/* QOS parameters */
     35 	struct atm_sap sap;		/* SAP */
     36 	unsigned int session;		/* for p2pm */
     37 	struct sockaddr_atmsvc svc;	/* SVC address */
     38 } __ATM_API_ALIGN;
     39 
     40 /*
     41  * Message contents: see ftp://icaftp.epfl.ch/pub/linux/atm/docs/isp-*.tar.gz
     42  */
     43 
     44 /*
     45  * Some policy stuff for atmsigd and for net/atm/svc.c. Both have to agree on
     46  * what PCR is used to request bandwidth from the device driver. net/atm/svc.c
     47  * tries to do better than that, but only if there's no routing decision (i.e.
     48  * if signaling only uses one ATM interface).
     49  */
     50 
     51 #define SELECT_TOP_PCR(tp) ((tp).pcr ? (tp).pcr : \
     52   (tp).max_pcr && (tp).max_pcr != ATM_MAX_PCR ? (tp).max_pcr : \
     53   (tp).min_pcr ? (tp).min_pcr : ATM_MAX_PCR)
     54 
     55 #endif
     56