include/linux/atm_tcp.h

   1 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
   2                driver-specific utilities) */
   3
   4 /* Written 1997-1999 by Werner Almesberger, EPFL LRC/ICA */
   5
   6
   7 #ifndef LINUX_ATM_TCP_H
   8 #define LINUX_ATM_TCP_H
   9
  10 #ifdef __KERNEL__
  11 #include <linux/types.h>
  12 #endif
  13 #include <linux/atmioc.h>
  14
  15
  16 /*
  17  * All values in struct atmtcp_hdr are in network byte order
  18  */
  19
  20 struct atmtcp_hdr {
  21         uint16_t        vpi;
  22         uint16_t        vci;
  23         uint32_t        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
  34 struct atmtcp_control {
  35         struct atmtcp_hdr hdr;  /* must be first */
  36         int             type;   /* message type; both directions */
  37         unsigned long   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 };
  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
  62 struct 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 };
  67
  68 extern struct atm_tcp_ops atm_tcp_ops;
  69
  70 #endif
  71
  72 #endif