Home | History | Annotate | Download | only in linux
      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 */
     63