uapi/linux/atm_tcp.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
0003            driver-specific utilities) */
0004
0005 /* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */
0006
0007
0008 #ifndef _UAPILINUX_ATM_TCP_H
0009 #define _UAPILINUX_ATM_TCP_H
0010
0011 #include <linux/atmapi.h>
0012 #include <linux/atm.h>
0013 #include <linux/atmioc.h>
0014 #include <linux/types.h>
0015
0016
0017 /*
0018  * All values in struct atmtcp_hdr are in network byte order
0019  */
0020
0021 struct atmtcp_hdr {
0022     __u16   vpi;
0023     __u16   vci;
0024     __u32   length;     /* ... of data part */
0025 };
0026
0027 /*
0028  * All values in struct atmtcp_command are in host byte order
0029  */
0030
0031 #define ATMTCP_HDR_MAGIC    (~0)    /* this length indicates a command */
0032 #define ATMTCP_CTRL_OPEN    1   /* request/reply */
0033 #define ATMTCP_CTRL_CLOSE   2   /* request/reply */
0034
0035 struct atmtcp_control {
0036     struct atmtcp_hdr hdr;  /* must be first */
0037     int type;       /* message type; both directions */
0038     atm_kptr_t vcc;     /* both directions */
0039     struct sockaddr_atmpvc addr; /* suggested value from kernel */
0040     struct atm_qos  qos;    /* both directions */
0041     int result;     /* to kernel only */
0042 } __ATM_API_ALIGN;
0043
0044 /*
0045  * Field usage:
0046  * Messge type  dir.    hdr.v?i type    addr    qos vcc result
0047  * -----------  ----    ------- ----    ----    --- --- ------
0048  * OPEN     K->D    Y   Y   Y   Y   Y   0
0049  * OPEN     D->K    -   Y   Y   Y   Y   Y
0050  * CLOSE    K->D    -   -   Y   -   Y   0
0051  * CLOSE    D->K    -   -   -   -   Y   Y
0052  */
0053
0054 #define SIOCSIFATMTCP   _IO('a',ATMIOC_ITF) /* set ATMTCP mode */
0055 #define ATMTCP_CREATE   _IO('a',ATMIOC_ITF+14)  /* create persistent ATMTCP
0056                            interface */
0057 #define ATMTCP_REMOVE   _IO('a',ATMIOC_ITF+15)  /* destroy persistent ATMTCP
0058                            interface */
0059
0060
0061
0062 #endif /* _UAPILINUX_ATM_TCP_H */