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,
  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