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/* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
               driver-specific utilities) */

/* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */


#ifndef LINUX_ATM_TCP_H
#define LINUX_ATM_TCP_H

#include <linux/atmapi.h>

#ifdef __KERNEL__
#include <linux/types.h>
#endif
#include <linux/atmioc.h>


/*
 * All values in struct atmtcp_hdr are in network byte order
 */

struct atmtcp_hdr {
        uint16_t        vpi;
        uint16_t        vci;
        uint32_t        length;         /* ... of data part */
};

/*
 * All values in struct atmtcp_command are in host byte order
 */

#define ATMTCP_HDR_MAGIC        (~0)    /* this length indicates a command */
#define ATMTCP_CTRL_OPEN        1       /* request/reply */
#define ATMTCP_CTRL_CLOSE       2       /* request/reply */

struct atmtcp_control {
        struct atmtcp_hdr hdr;  /* must be first */
        int type;               /* message type; both directions */
        atm_kptr_t vcc;         /* both directions */
        struct sockaddr_atmpvc addr; /* suggested value from kernel */
        struct atm_qos  qos;    /* both directions */
        int result;             /* to kernel only */
} __ATM_API_ALIGN;

/*
 * Field usage:
 * Messge type  dir.    hdr.v?i type    addr    qos     vcc     result
 * -----------  ----    ------- ----    ----    ---     ---     ------
 * OPEN         K->D    Y       Y       Y       Y       Y       0
 * OPEN         D->K    -       Y       Y       Y       Y       Y
 * CLOSE        K->D    -       -       Y       -       Y       0
 * CLOSE        D->K    -       -       -       -       Y       Y
 */

#define SIOCSIFATMTCP   _IO('a',ATMIOC_ITF)     /* set ATMTCP mode */
#define ATMTCP_CREATE   _IO('a',ATMIOC_ITF+14)  /* create persistent ATMTCP
                                                   interface */
#define ATMTCP_REMOVE   _IO('a',ATMIOC_ITF+15)  /* destroy persistent ATMTCP
                                                   interface */


#ifdef __KERNEL__

struct atm_tcp_ops {
        int (*attach)(struct atm_vcc *vcc,int itf);
        int (*create_persistent)(int itf);
        int (*remove_persistent)(int itf);
        struct module *owner;
};

extern struct atm_tcp_ops atm_tcp_ops;

#endif

#endif