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