LXR linux-bk/include/linux/atm

   1/* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
   2               driver-specific utilities) */
   3
   4/* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */
   5
   6
   7#ifndef LINUX_ATM_TCP_H
   8#define LINUX_ATM_TCP_H
   9
  10#include <linux/atmapi.h>
  11
  12#ifdef __KERNEL__
  13#include <linux/types.h>
  14#endif
  15#include <linux/atmioc.h>
  16
  17
  18/*
  19 * All values in struct atmtcp_hdr are in network byte order
  20 */
  21
  22struct atmtcp_hdr {
  23        uint16_t        vpi;
  24        uint16_t        vci;
  25        uint32_t        length;         /* ... of data part */
  26};
  27
  28/*
  29 * All values in struct atmtcp_command are in host byte order
  30 */
  31
  32#define ATMTCP_HDR_MAGIC        (~0)    /* this length indicates a command */
  33#define ATMTCP_CTRL_OPEN        1       /* request/reply */
  34#define ATMTCP_CTRL_CLOSE       2       /* request/reply */
  35
  36struct atmtcp_control {
  37        struct atmtcp_hdr hdr;  /* must be first */
  38        int type;               /* message type; both directions */
  39        atm_kptr_t vcc;         /* both directions */
  40        struct sockaddr_atmpvc addr; /* suggested value from kernel */
  41        struct atm_qos  qos;    /* both directions */
  42        int result;             /* to kernel only */
  43} __ATM_API_ALIGN;
  44
  45/*
  46 * Field usage:
  47 * Messge type  dir.    hdr.v?i type    addr    qos     vcc     result
  48 * -----------  ----    ------- ----    ----    ---     ---     ------
  49 * OPEN         K->D    Y       Y       Y       Y       Y       0
  50 * OPEN         D->K    -       Y       Y       Y       Y       Y
  51 * CLOSE        K->D    -       -       Y       -       Y       0
  52 * CLOSE        D->K    -       -       -       -       Y       Y
  53 */
  54
  55#define SIOCSIFATMTCP   _IO('a',ATMIOC_ITF)     /* set ATMTCP mode */
  56#define ATMTCP_CREATE   _IO('a',ATMIOC_ITF+14)  /* create persistent ATMTCP
  57                                                   interface */
  58#define ATMTCP_REMOVE   _IO('a',ATMIOC_ITF+15)  /* destroy persistent ATMTCP
  59                                                   interface */
  60
  61
  62#ifdef __KERNEL__
  63
  64struct atm_tcp_ops {
  65        int (*attach)(struct atm_vcc *vcc,int itf);
  66        int (*create_persistent)(int itf);
  67        int (*remove_persistent)(int itf);
  68        struct module *owner;
  69};
  70
  71extern struct atm_tcp_ops atm_tcp_ops;
  72
  73#endif
  74
  75#endif
  76