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 1997-2000 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
  22 struct 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
  36 struct 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
  64 struct 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
  71 extern struct atm_tcp_ops atm_tcp_ops;
  72
  73 #endif
  74
  75 #endif