linux/include/linux/atm_tcp.h
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   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#include <linux/atm.h>
  12#include <linux/atmioc.h>
  13#include <linux/types.h>
  14
  15
  16/*
  17 * All values in struct atmtcp_hdr are in network byte order
  18 */
  19
  20struct atmtcp_hdr {
  21        __u16   vpi;
  22        __u16   vci;
  23        __u32   length;         /* ... of data part */
  24};
  25
  26/*
  27 * All values in struct atmtcp_command are in host byte order
  28 */
  29
  30#define ATMTCP_HDR_MAGIC        (~0)    /* this length indicates a command */
  31#define ATMTCP_CTRL_OPEN        1       /* request/reply */
  32#define ATMTCP_CTRL_CLOSE       2       /* request/reply */
  33
  34struct atmtcp_control {
  35        struct atmtcp_hdr hdr;  /* must be first */
  36        int type;               /* message type; both directions */
  37        atm_kptr_t vcc;         /* both directions */
  38        struct sockaddr_atmpvc addr; /* suggested value from kernel */
  39        struct atm_qos  qos;    /* both directions */
  40        int result;             /* to kernel only */
  41} __ATM_API_ALIGN;
  42
  43/*
  44 * Field usage:
  45 * Messge type  dir.    hdr.v?i type    addr    qos     vcc     result
  46 * -----------  ----    ------- ----    ----    ---     ---     ------
  47 * OPEN         K->D    Y       Y       Y       Y       Y       0
  48 * OPEN         D->K    -       Y       Y       Y       Y       Y
  49 * CLOSE        K->D    -       -       Y       -       Y       0
  50 * CLOSE        D->K    -       -       -       -       Y       Y
  51 */
  52
  53#define SIOCSIFATMTCP   _IO('a',ATMIOC_ITF)     /* set ATMTCP mode */
  54#define ATMTCP_CREATE   _IO('a',ATMIOC_ITF+14)  /* create persistent ATMTCP
  55                                                   interface */
  56#define ATMTCP_REMOVE   _IO('a',ATMIOC_ITF+15)  /* destroy persistent ATMTCP
  57                                                   interface */
  58
  59
  60#ifdef __KERNEL__
  61
  62struct atm_tcp_ops {
  63        int (*attach)(struct atm_vcc *vcc,int itf);
  64        int (*create_persistent)(int itf);
  65        int (*remove_persistent)(int itf);
  66        struct module *owner;
  67};
  68
  69extern struct atm_tcp_ops atm_tcp_ops;
  70
  71#endif
  72
  73#endif
  74
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