include/linux/atmsvc.h

   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,as_itf_notify,
  19   as_modify,as_identify,as_terminate };
  20
  21 struct atmsvc_msg {
  22         enum atmsvc_msg_type type;
  23         atm_kptr_t vcc;
  24         atm_kptr_t listen_vcc;          /* indicate */
  25         int reply;                      /* for okay and close:             */
  26                                         /*   < 0: error before active      */
  27                                         /*        (sigd has discarded ctx) */
  28                                         /*   ==0: success                  */
  29                                         /*   > 0: error when active (still */
  30                                         /*        need to close)           */
  31         struct sockaddr_atmpvc pvc;     /* indicate, okay (connect) */
  32         struct sockaddr_atmsvc local;   /* local SVC address */
  33         struct atm_qos qos;             /* QOS parameters */
  34         struct atm_sap sap;             /* SAP */
  35         unsigned int session;           /* for p2pm */
  36         struct sockaddr_atmsvc svc;     /* SVC address */
  37 } __ATM_API_ALIGN;
  38
  39 /*
  40  * Message contents: see ftp://icaftp.epfl.ch/pub/linux/atm/docs/isp-*.tar.gz
  41  */
  42
  43 /*
  44  * Some policy stuff for atmsigd and for net/atm/svc.c. Both have to agree on
  45  * what PCR is used to request bandwidth from the device driver. net/atm/svc.c
  46  * tries to do better than that, but only if there's no routing decision (i.e.
  47  * if signaling only uses one ATM interface).
  48  */
  49
  50 #define SELECT_TOP_PCR(tp) ((tp).pcr ? (tp).pcr : \
  51   (tp).max_pcr && (tp).max_pcr != ATM_MAX_PCR ? (tp).max_pcr : \
  52   (tp).min_pcr ? (tp).min_pcr : ATM_MAX_PCR)
  53
  54 #endif