include/uapi/linux/atm_tcp.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
   3                driver-specific utilities) */
   4
   5 /* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */
   6
   7
   8 #ifndef _UAPILINUX_ATM_TCP_H
   9 #define _UAPILINUX_ATM_TCP_H
  10
  11 #include <linux/atmapi.h>
  12 #include <linux/atm.h>
  13 #include <linux/atmioc.h>
  14 #include <linux/types.h>
  15
  16
  17 /*
  18  * All values in struct atmtcp_hdr are in network byte order
  19  */
  20
  21 struct atmtcp_hdr {
  22         __u16   vpi;
  23         __u16   vci;
  24         __u32   length;         /* ... of data part */
  25 };
  26
  27 /*
  28  * All values in struct atmtcp_command are in host byte order
  29  */
  30
  31 #define ATMTCP_HDR_MAGIC        (~0)    /* this length indicates a command */
  32 #define ATMTCP_CTRL_OPEN        1       /* request/reply */
  33 #define ATMTCP_CTRL_CLOSE       2       /* request/reply */
  34
  35 struct atmtcp_control {
  36         struct atmtcp_hdr hdr;  /* must be first */
  37         int type;               /* message type; both directions */
  38         atm_kptr_t vcc;         /* both directions */
  39         struct sockaddr_atmpvc addr; /* suggested value from kernel */
  40         struct atm_qos  qos;    /* both directions */
  41         int result;             /* to kernel only */
  42 } __ATM_API_ALIGN;
  43
  44 /*
  45  * Field usage:
  46  * Messge type  dir.    hdr.v?i type    addr    qos     vcc     result
  47  * -----------  ----    ------- ----    ----    ---     ---     ------
  48  * OPEN         K->D    Y       Y       Y       Y       Y       0
  49  * OPEN         D->K    -       Y       Y       Y       Y       Y
  50  * CLOSE        K->D    -       -       Y       -       Y       0
  51  * CLOSE        D->K    -       -       -       -       Y       Y
  52  */
  53
  54 #define SIOCSIFATMTCP   _IO('a',ATMIOC_ITF)     /* set ATMTCP mode */
  55 #define ATMTCP_CREATE   _IO('a',ATMIOC_ITF+14)  /* create persistent ATMTCP
  56                                                    interface */
  57 #define ATMTCP_REMOVE   _IO('a',ATMIOC_ITF+15)  /* destroy persistent ATMTCP
  58                                                    interface */
  59
  60
  61
  62 #endif /* _UAPILINUX_ATM_TCP_H */