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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 
     12 #include <linux/atmioc.h>
     13 
     14 
     15 /*
     16  * All values in struct atmtcp_hdr are in network byte order
     17  */
     18 
     19 struct atmtcp_hdr {
     20 	uint16_t	vpi;
     21 	uint16_t	vci;
     22 	uint32_t	length;		/* ... of data part */
     23 };
     24 
     25 /*
     26  * All values in struct atmtcp_command are in host byte order
     27  */
     28 
     29 #define ATMTCP_HDR_MAGIC	(~0)	/* this length indicates a command */
     30 #define ATMTCP_CTRL_OPEN	1	/* request/reply */
     31 #define ATMTCP_CTRL_CLOSE	2	/* request/reply */
     32 
     33 struct atmtcp_control {
     34 	struct atmtcp_hdr hdr;	/* must be first */
     35 	int type;		/* message type; both directions */
     36 	atm_kptr_t vcc;		/* both directions */
     37 	struct sockaddr_atmpvc addr; /* suggested value from kernel */
     38 	struct atm_qos	qos;	/* both directions */
     39 	int result;		/* to kernel only */
     40 } __ATM_API_ALIGN;
     41 
     42 /*
     43  * Field usage:
     44  * Messge type	dir.	hdr.v?i	type	addr	qos	vcc	result
     45  * -----------  ----	------- ----	----	---	---	------
     46  * OPEN		K->D	Y	Y	Y	Y	Y	0
     47  * OPEN		D->K	-	Y	Y	Y	Y	Y
     48  * CLOSE	K->D	-	-	Y	-	Y	0
     49  * CLOSE	D->K	-	-	-	-	Y	Y
     50  */
     51 
     52 #define SIOCSIFATMTCP	_IO('a',ATMIOC_ITF)	/* set ATMTCP mode */
     53 #define ATMTCP_CREATE	_IO('a',ATMIOC_ITF+14)	/* create persistent ATMTCP
     54 						   interface */
     55 #define ATMTCP_REMOVE	_IO('a',ATMIOC_ITF+15)	/* destroy persistent ATMTCP
     56 						   interface */
     57 
     58 
     59 
     60 #endif
     61