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      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 #include <linux/atm.h>
     12 #include <linux/atmioc.h>
     13 #include <linux/types.h>
     14 
     15 
     16 /*
     17  * All values in struct atmtcp_hdr are in network byte order
     18  */
     19 
     20 struct atmtcp_hdr {
     21 	__u16	vpi;
     22 	__u16	vci;
     23 	__u32	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 	atm_kptr_t 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 } __ATM_API_ALIGN;
     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 
     61 #endif
     62